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16216333 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
643f12db | 3 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 | 4 | * |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
78f81cc4 BD |
7 | */ |
8 | ||
0978e012 JP |
9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
10 | ||
2801b968 | 11 | #define TPACPI_VERSION "0.26" |
6b99e356 | 12 | #define TPACPI_SYSFS_VERSION 0x030000 |
78f81cc4 BD |
13 | |
14 | /* | |
1da177e4 | 15 | * Changelog: |
4b45cc07 HMH |
16 | * 2007-10-20 changelog trimmed down |
17 | * | |
643f12db HMH |
18 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
19 | * drivers/misc. | |
f9ff43a6 HMH |
20 | * |
21 | * 2006-11-22 0.13 new maintainer | |
22 | * changelog now lives in git commit history, and will | |
23 | * not be updated further in-file. | |
837ca6dd | 24 | * |
78f81cc4 BD |
25 | * 2005-03-17 0.11 support for 600e, 770x |
26 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
27 | * |
28 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
29 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
30 | * fix parameter passing on module loading | |
31 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
32 | * thanks to Jim Radford <radford@blackbean.org> | |
33 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
34 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
35 | */ |
36 | ||
0c78039f HMH |
37 | #include <linux/kernel.h> |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/string.h> | |
42 | #include <linux/list.h> | |
43 | #include <linux/mutex.h> | |
73a94d86 | 44 | #include <linux/sched.h> |
7a36094d | 45 | #include <linux/sched/signal.h> |
0c78039f HMH |
46 | #include <linux/kthread.h> |
47 | #include <linux/freezer.h> | |
48 | #include <linux/delay.h> | |
5a0e3ad6 | 49 | #include <linux/slab.h> |
0c78039f HMH |
50 | #include <linux/nvram.h> |
51 | #include <linux/proc_fs.h> | |
887965e6 | 52 | #include <linux/seq_file.h> |
0c78039f HMH |
53 | #include <linux/sysfs.h> |
54 | #include <linux/backlight.h> | |
2801b968 | 55 | #include <linux/bitops.h> |
0c78039f HMH |
56 | #include <linux/fb.h> |
57 | #include <linux/platform_device.h> | |
58 | #include <linux/hwmon.h> | |
59 | #include <linux/hwmon-sysfs.h> | |
60 | #include <linux/input.h> | |
4fa6811b | 61 | #include <linux/leds.h> |
0e74dc26 | 62 | #include <linux/rfkill.h> |
0c78039f HMH |
63 | #include <linux/dmi.h> |
64 | #include <linux/jiffies.h> | |
65 | #include <linux/workqueue.h> | |
8b48463f | 66 | #include <linux/acpi.h> |
f7db839f | 67 | #include <linux/pci.h> |
2801b968 | 68 | #include <linux/power_supply.h> |
c3bfcd4c | 69 | #include <linux/platform_profile.h> |
0d204c34 HMH |
70 | #include <sound/core.h> |
71 | #include <sound/control.h> | |
72 | #include <sound/initval.h> | |
7c0f6ba6 | 73 | #include <linux/uaccess.h> |
2801b968 | 74 | #include <acpi/battery.h> |
b33c6ce5 | 75 | #include <acpi/video.h> |
153cca9c | 76 | #include "dual_accel_detect.h" |
0c78039f HMH |
77 | |
78 | /* ThinkPad CMOS commands */ | |
79 | #define TP_CMOS_VOLUME_DOWN 0 | |
80 | #define TP_CMOS_VOLUME_UP 1 | |
81 | #define TP_CMOS_VOLUME_MUTE 2 | |
82 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
83 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
84 | #define TP_CMOS_THINKLIGHT_ON 12 |
85 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
86 | |
87 | /* NVRAM Addresses */ | |
88 | enum tp_nvram_addr { | |
89 | TP_NVRAM_ADDR_HK2 = 0x57, | |
90 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
91 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
92 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
93 | TP_NVRAM_ADDR_MIXER = 0x60, | |
94 | }; | |
95 | ||
96 | /* NVRAM bit masks */ | |
97 | enum { | |
98 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
99 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
100 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
101 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
102 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
103 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
104 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
105 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
106 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
107 | TP_NVRAM_MASK_MUTE = 0x40, | |
108 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
109 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
110 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
111 | }; | |
112 | ||
5d756db9 HMH |
113 | /* Misc NVRAM-related */ |
114 | enum { | |
115 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
116 | }; | |
117 | ||
b21a15f6 | 118 | /* ACPI HIDs */ |
9fbdaeb4 MI |
119 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
120 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
a3c42a46 | 121 | #define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268" |
437e470c | 122 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
123 | |
124 | /* Input IDs */ | |
125 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
126 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
127 | ||
153f8220 HMH |
128 | /* ACPI \WGSV commands */ |
129 | enum { | |
130 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
131 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
132 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
133 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
134 | }; | |
135 | ||
136 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
137 | enum { | |
138 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
139 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
140 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
141 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
142 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
143 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
144 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
145 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
146 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
147 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
148 | }; | |
b21a15f6 | 149 | |
67bcae6e HMH |
150 | /* HKEY events */ |
151 | enum tpacpi_hkey_event_t { | |
152 | /* Hotkey-related */ | |
153 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
154 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
155 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
c685e20d | 156 | TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */ |
67bcae6e HMH |
157 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ |
158 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
159 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
160 | ||
161 | /* Reasons for waking up from S3/S4 */ | |
162 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
163 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
164 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
165 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
166 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
167 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
168 | ||
169 | /* Auto-sleep after eject request */ | |
170 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
171 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
172 | ||
173 | /* Misc bay events */ | |
174 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
175 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
176 | or port replicator */ | |
177 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
178 | dock or port replicator */ | |
0a053f01 AK |
179 | /* |
180 | * Thinkpad X1 Tablet series devices emit 0x4012 and 0x4013 | |
181 | * when keyboard cover is attached, detached or folded onto the back | |
182 | */ | |
183 | TP_HKEY_EV_KBD_COVER_ATTACH = 0x4012, /* keyboard cover attached */ | |
184 | TP_HKEY_EV_KBD_COVER_DETACH = 0x4013, /* keyboard cover detached or folded back */ | |
67bcae6e HMH |
185 | |
186 | /* User-interface events */ | |
187 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
188 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
189 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
190 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
b03f4d49 L |
191 | TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): |
192 | * enter/leave tablet mode | |
193 | */ | |
67bcae6e HMH |
194 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ |
195 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
196 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
197 | ||
2d43f671 HMH |
198 | /* Key-related user-interface events */ |
199 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
200 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 201 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 202 | |
67bcae6e HMH |
203 | /* Thermal events */ |
204 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
205 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
206 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
207 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
6e6bc5f6 HMH |
208 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* windows; thermal table changed */ |
209 | TP_HKEY_EV_THM_CSM_COMPLETED = 0x6032, /* windows; thermal control set | |
210 | * command completed. Related to | |
211 | * AML DYTC */ | |
212 | TP_HKEY_EV_THM_TRANSFM_CHANGED = 0x60F0, /* windows; thermal transformation | |
213 | * changed. Related to AML GMTS */ | |
67bcae6e | 214 | |
6f62bc3e RH |
215 | /* AC-related events */ |
216 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 217 | |
587d8628 DH |
218 | /* Further user-interface events */ |
219 | TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */ | |
220 | TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */ | |
221 | ||
67bcae6e HMH |
222 | /* Misc */ |
223 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
224 | }; | |
225 | ||
b21a15f6 HMH |
226 | /**************************************************************************** |
227 | * Main driver | |
228 | */ | |
229 | ||
e0c7dfe7 HMH |
230 | #define TPACPI_NAME "thinkpad" |
231 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
232 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
233 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
234 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 235 | |
e0c7dfe7 HMH |
236 | #define TPACPI_PROC_DIR "ibm" |
237 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
238 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 239 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 240 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 241 | |
95e57ab2 | 242 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 243 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 244 | |
e0c7dfe7 | 245 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 246 | |
7ff8d62f | 247 | /* Debugging printk groups */ |
0c78039f | 248 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 249 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
250 | #define TPACPI_DBG_INIT 0x0001 |
251 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 252 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 253 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 254 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 255 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 256 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 257 | |
35ff8b9f HMH |
258 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
259 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
260 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 261 | |
0c78039f HMH |
262 | |
263 | /**************************************************************************** | |
b21a15f6 | 264 | * Driver-wide structs and misc. variables |
0c78039f HMH |
265 | */ |
266 | ||
267 | struct ibm_struct; | |
268 | ||
269 | struct tp_acpi_drv_struct { | |
270 | const struct acpi_device_id *hid; | |
271 | struct acpi_driver *driver; | |
272 | ||
273 | void (*notify) (struct ibm_struct *, u32); | |
274 | acpi_handle *handle; | |
275 | u32 type; | |
276 | struct acpi_device *device; | |
277 | }; | |
278 | ||
279 | struct ibm_struct { | |
280 | char *name; | |
281 | ||
887965e6 | 282 | int (*read) (struct seq_file *); |
0c78039f HMH |
283 | int (*write) (char *); |
284 | void (*exit) (void); | |
285 | void (*resume) (void); | |
fd3c3a42 | 286 | void (*suspend) (void); |
90d9d3c7 | 287 | void (*shutdown) (void); |
0c78039f HMH |
288 | |
289 | struct list_head all_drivers; | |
290 | ||
291 | struct tp_acpi_drv_struct *acpi; | |
292 | ||
293 | struct { | |
294 | u8 acpi_driver_registered:1; | |
295 | u8 acpi_notify_installed:1; | |
296 | u8 proc_created:1; | |
297 | u8 init_called:1; | |
298 | u8 experimental:1; | |
299 | } flags; | |
300 | }; | |
301 | ||
302 | struct ibm_init_struct { | |
303 | char param[32]; | |
304 | ||
305 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 306 | umode_t base_procfs_mode; |
0c78039f HMH |
307 | struct ibm_struct *data; |
308 | }; | |
309 | ||
310 | static struct { | |
0c78039f HMH |
311 | u32 bluetooth:1; |
312 | u32 hotkey:1; | |
313 | u32 hotkey_mask:1; | |
314 | u32 hotkey_wlsw:1; | |
b3180028 L |
315 | enum { |
316 | TP_HOTKEY_TABLET_NONE = 0, | |
317 | TP_HOTKEY_TABLET_USES_MHKG, | |
dda3ec0a | 318 | TP_HOTKEY_TABLET_USES_GMMS, |
b3180028 | 319 | } hotkey_tablet; |
bb28f3d5 | 320 | u32 kbdlight:1; |
0c78039f HMH |
321 | u32 light:1; |
322 | u32 light_status:1; | |
b5972796 | 323 | u32 bright_acpimode:1; |
77775838 | 324 | u32 bright_unkfw:1; |
0c78039f | 325 | u32 wan:1; |
0045c0aa | 326 | u32 uwb:1; |
0c78039f | 327 | u32 fan_ctrl_status_undef:1; |
d7377247 | 328 | u32 second_fan:1; |
14232c6e | 329 | u32 second_fan_ctl:1; |
60201732 | 330 | u32 beep_needs_two_args:1; |
a112ceee | 331 | u32 mixer_no_level_control:1; |
1a32ebb2 | 332 | u32 battery_force_primary:1; |
0c78039f HMH |
333 | u32 input_device_registered:1; |
334 | u32 platform_drv_registered:1; | |
335 | u32 platform_drv_attrs_registered:1; | |
336 | u32 sensors_pdrv_registered:1; | |
337 | u32 sensors_pdrv_attrs_registered:1; | |
338 | u32 sensors_pdev_attrs_registered:1; | |
339 | u32 hotkey_poll_active:1; | |
f23a5bcb | 340 | u32 has_adaptive_kbd:1; |
0c78039f HMH |
341 | } tp_features; |
342 | ||
92889022 HMH |
343 | static struct { |
344 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 345 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
346 | } tp_warned; |
347 | ||
0c78039f HMH |
348 | struct thinkpad_id_data { |
349 | unsigned int vendor; /* ThinkPad vendor: | |
350 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
351 | ||
352 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
353 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
354 | ||
846a416b JW |
355 | u32 bios_model; /* 1Y = 0x3159, 0 = unknown */ |
356 | u32 ec_model; | |
357 | u16 bios_release; /* 1ZETK1WW = 0x4b31, 0 = unknown */ | |
050df107 | 358 | u16 ec_release; |
0c78039f | 359 | |
8c74adbc HMH |
360 | char *model_str; /* ThinkPad T43 */ |
361 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 362 | }; |
0c78039f HMH |
363 | static struct thinkpad_id_data thinkpad_id; |
364 | ||
8fef502e HMH |
365 | static enum { |
366 | TPACPI_LIFE_INIT = 0, | |
367 | TPACPI_LIFE_RUNNING, | |
368 | TPACPI_LIFE_EXITING, | |
369 | } tpacpi_lifecycle; | |
370 | ||
b21a15f6 HMH |
371 | static int experimental; |
372 | static u32 dbg_level; | |
373 | ||
e0e3c061 HMH |
374 | static struct workqueue_struct *tpacpi_wq; |
375 | ||
75bd3bf2 HMH |
376 | enum led_status_t { |
377 | TPACPI_LED_OFF = 0, | |
378 | TPACPI_LED_ON, | |
379 | TPACPI_LED_BLINK, | |
380 | }; | |
381 | ||
86ec0c2c | 382 | /* tpacpi LED class */ |
4fa6811b HMH |
383 | struct tpacpi_led_classdev { |
384 | struct led_classdev led_classdev; | |
edf2d778 | 385 | int led; |
4fa6811b HMH |
386 | }; |
387 | ||
77775838 HMH |
388 | /* brightness level capabilities */ |
389 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
390 | ||
a73f3091 HMH |
391 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
392 | static int dbg_wlswemul; | |
90ab5ee9 | 393 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 394 | static int dbg_bluetoothemul; |
90ab5ee9 | 395 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 396 | static int dbg_wwanemul; |
90ab5ee9 | 397 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 398 | static int dbg_uwbemul; |
90ab5ee9 | 399 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
400 | #endif |
401 | ||
402 | ||
3dcc2c3b HMH |
403 | /************************************************************************* |
404 | * Debugging helpers | |
405 | */ | |
406 | ||
0978e012 JP |
407 | #define dbg_printk(a_dbg_level, format, arg...) \ |
408 | do { \ | |
409 | if (dbg_level & (a_dbg_level)) \ | |
410 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
411 | __func__, ##arg); \ | |
412 | } while (0) | |
3dcc2c3b HMH |
413 | |
414 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
415 | #define vdbg_printk dbg_printk | |
416 | static const char *str_supported(int is_supported); | |
417 | #else | |
0978e012 JP |
418 | static inline const char *str_supported(int is_supported) { return ""; } |
419 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 420 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
421 | #endif |
422 | ||
73a94d86 HMH |
423 | static void tpacpi_log_usertask(const char * const what) |
424 | { | |
0978e012 JP |
425 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
426 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
427 | } |
428 | ||
0978e012 JP |
429 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
430 | do { \ | |
431 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
432 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
433 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
434 | what, task_tgid_vnr(current), ## arg); \ | |
435 | } \ | |
436 | } while (0) | |
3dcc2c3b | 437 | |
7d95a3d5 HMH |
438 | /* |
439 | * Quirk handling helpers | |
440 | * | |
846a416b JW |
441 | * ThinkPad IDs and versions seen in the field so far are |
442 | * two or three characters from the set [0-9A-Z], i.e. base 36. | |
7d95a3d5 HMH |
443 | * |
444 | * We use values well outside that range as specials. | |
445 | */ | |
446 | ||
846a416b JW |
447 | #define TPACPI_MATCH_ANY 0xffffffffU |
448 | #define TPACPI_MATCH_ANY_VERSION 0xffffU | |
7d95a3d5 HMH |
449 | #define TPACPI_MATCH_UNKNOWN 0U |
450 | ||
846a416b JW |
451 | /* TPID('1', 'Y') == 0x3159 */ |
452 | #define TPID(__c1, __c2) (((__c1) << 8) | (__c2)) | |
453 | #define TPID3(__c1, __c2, __c3) (((__c1) << 16) | ((__c2) << 8) | (__c3)) | |
454 | #define TPVER TPID | |
7d95a3d5 HMH |
455 | |
456 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
457 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
458 | .bios = TPID(__id1, __id2), \ | |
459 | .ec = TPACPI_MATCH_ANY, \ | |
460 | .quirks = (__quirk) } | |
461 | ||
462 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
463 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
464 | .bios = TPID(__id1, __id2), \ | |
465 | .ec = TPACPI_MATCH_ANY, \ | |
466 | .quirks = (__quirk) } | |
467 | ||
1a32ebb2 JW |
468 | #define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \ |
469 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
470 | .bios = TPID3(__id1, __id2, __id3), \ | |
471 | .ec = TPACPI_MATCH_ANY, \ | |
472 | .quirks = (__quirk) } | |
473 | ||
599eefff JW |
474 | #define TPACPI_QEC_IBM(__id1, __id2, __quirk) \ |
475 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
476 | .bios = TPACPI_MATCH_ANY, \ | |
477 | .ec = TPID(__id1, __id2), \ | |
478 | .quirks = (__quirk) } | |
479 | ||
a112ceee HMH |
480 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
481 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
482 | .bios = TPACPI_MATCH_ANY, \ | |
483 | .ec = TPID(__id1, __id2), \ | |
484 | .quirks = (__quirk) } | |
485 | ||
7d95a3d5 HMH |
486 | struct tpacpi_quirk { |
487 | unsigned int vendor; | |
846a416b JW |
488 | u32 bios; |
489 | u32 ec; | |
7d95a3d5 HMH |
490 | unsigned long quirks; |
491 | }; | |
492 | ||
493 | /** | |
494 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
495 | * @qlist: array of &struct tpacpi_quirk | |
496 | * @qlist_size: number of elements in @qlist | |
497 | * | |
498 | * Iterates over a quirks list until one is found that matches the | |
499 | * ThinkPad's vendor, BIOS and EC model. | |
500 | * | |
501 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
502 | * the matching &struct tpacpi_quirk entry. | |
503 | * | |
504 | * The match criteria is: vendor, ec and bios much match. | |
505 | */ | |
506 | static unsigned long __init tpacpi_check_quirks( | |
507 | const struct tpacpi_quirk *qlist, | |
508 | unsigned int qlist_size) | |
509 | { | |
510 | while (qlist_size) { | |
511 | if ((qlist->vendor == thinkpad_id.vendor || | |
512 | qlist->vendor == TPACPI_MATCH_ANY) && | |
513 | (qlist->bios == thinkpad_id.bios_model || | |
514 | qlist->bios == TPACPI_MATCH_ANY) && | |
515 | (qlist->ec == thinkpad_id.ec_model || | |
516 | qlist->ec == TPACPI_MATCH_ANY)) | |
517 | return qlist->quirks; | |
518 | ||
519 | qlist_size--; | |
520 | qlist++; | |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
e28393c0 HMH |
525 | static inline bool __pure __init tpacpi_is_lenovo(void) |
526 | { | |
527 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
528 | } | |
529 | ||
530 | static inline bool __pure __init tpacpi_is_ibm(void) | |
531 | { | |
532 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
533 | } | |
7d95a3d5 | 534 | |
56b6aeb0 HMH |
535 | /**************************************************************************** |
536 | **************************************************************************** | |
537 | * | |
538 | * ACPI Helpers and device model | |
539 | * | |
540 | **************************************************************************** | |
541 | ****************************************************************************/ | |
542 | ||
543 | /************************************************************************* | |
544 | * ACPI basic handles | |
545 | */ | |
1da177e4 | 546 | |
94954cc6 | 547 | static acpi_handle root_handle; |
437e470c | 548 | static acpi_handle ec_handle; |
1da177e4 | 549 | |
e0c7dfe7 | 550 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 551 | static acpi_handle object##_handle; \ |
3bd01896 | 552 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
553 | &parent##_handle; \ |
554 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 555 | |
e0c7dfe7 HMH |
556 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
557 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 558 | |
35ff8b9f HMH |
559 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
560 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
561 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
562 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 563 | ); /* all others */ |
78f81cc4 | 564 | |
e0c7dfe7 | 565 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
566 | "^HKEY", /* R30, R31 */ |
567 | "HKEY", /* all others */ | |
56b6aeb0 | 568 | ); /* 570 */ |
78f81cc4 | 569 | |
56b6aeb0 HMH |
570 | /************************************************************************* |
571 | * ACPI helpers | |
a8b7a662 HMH |
572 | */ |
573 | ||
1da177e4 | 574 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 575 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
576 | { |
577 | char *fmt0 = fmt; | |
78f81cc4 | 578 | struct acpi_object_list params; |
e0c7dfe7 | 579 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
580 | struct acpi_buffer result, *resultp; |
581 | union acpi_object out_obj; | |
582 | acpi_status status; | |
583 | va_list ap; | |
584 | char res_type; | |
585 | int success; | |
586 | int quiet; | |
1da177e4 LT |
587 | |
588 | if (!*fmt) { | |
0978e012 | 589 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
590 | return 0; |
591 | } | |
592 | ||
593 | if (*fmt == 'q') { | |
594 | quiet = 1; | |
595 | fmt++; | |
596 | } else | |
597 | quiet = 0; | |
598 | ||
599 | res_type = *(fmt++); | |
600 | ||
601 | params.count = 0; | |
602 | params.pointer = &in_objs[0]; | |
603 | ||
604 | va_start(ap, fmt); | |
605 | while (*fmt) { | |
606 | char c = *(fmt++); | |
607 | switch (c) { | |
608 | case 'd': /* int */ | |
609 | in_objs[params.count].integer.value = va_arg(ap, int); | |
610 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
611 | break; | |
78f81cc4 | 612 | /* add more types as needed */ |
1da177e4 | 613 | default: |
5cac62ac AS |
614 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
615 | c); | |
21365851 | 616 | va_end(ap); |
1da177e4 LT |
617 | return 0; |
618 | } | |
619 | } | |
620 | va_end(ap); | |
621 | ||
78f81cc4 BD |
622 | if (res_type != 'v') { |
623 | result.length = sizeof(out_obj); | |
624 | result.pointer = &out_obj; | |
625 | resultp = &result; | |
626 | } else | |
627 | resultp = NULL; | |
1da177e4 | 628 | |
78f81cc4 | 629 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
630 | |
631 | switch (res_type) { | |
78f81cc4 | 632 | case 'd': /* int */ |
263f4a30 HMH |
633 | success = (status == AE_OK && |
634 | out_obj.type == ACPI_TYPE_INTEGER); | |
635 | if (success && res) | |
eceeb437 | 636 | *res = out_obj.integer.value; |
1da177e4 | 637 | break; |
78f81cc4 | 638 | case 'v': /* void */ |
1da177e4 LT |
639 | success = status == AE_OK; |
640 | break; | |
78f81cc4 | 641 | /* add more types as needed */ |
1da177e4 | 642 | default: |
5cac62ac AS |
643 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
644 | res_type); | |
1da177e4 LT |
645 | return 0; |
646 | } | |
647 | ||
56b6aeb0 | 648 | if (!success && !quiet) |
0978e012 | 649 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 650 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
651 | |
652 | return success; | |
653 | } | |
654 | ||
35ff8b9f | 655 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
656 | { |
657 | int v; | |
658 | ||
659 | if (ecrd_handle) { | |
660 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
661 | return 0; | |
662 | *p = v; | |
663 | } else { | |
664 | if (ec_read(i, p) < 0) | |
665 | return 0; | |
666 | } | |
667 | ||
668 | return 1; | |
669 | } | |
670 | ||
671 | static int acpi_ec_write(int i, u8 v) | |
672 | { | |
673 | if (ecwr_handle) { | |
674 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
675 | return 0; | |
676 | } else { | |
677 | if (ec_write(i, v) < 0) | |
678 | return 0; | |
679 | } | |
680 | ||
681 | return 1; | |
682 | } | |
683 | ||
c9bea99c HMH |
684 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
685 | { | |
686 | if (!cmos_handle) | |
687 | return -ENXIO; | |
688 | ||
689 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
690 | return -EIO; | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
56b6aeb0 HMH |
695 | /************************************************************************* |
696 | * ACPI device model | |
697 | */ | |
698 | ||
35ff8b9f HMH |
699 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
700 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 701 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 702 | |
ef07a5ab HMH |
703 | static void __init drv_acpi_handle_init(const char *name, |
704 | acpi_handle *handle, const acpi_handle parent, | |
705 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
706 | { |
707 | int i; | |
708 | acpi_status status; | |
709 | ||
5ae930e6 HMH |
710 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
711 | name); | |
712 | ||
56b6aeb0 HMH |
713 | for (i = 0; i < num_paths; i++) { |
714 | status = acpi_get_handle(parent, paths[i], handle); | |
715 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
716 | dbg_printk(TPACPI_DBG_INIT, |
717 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 718 | paths[i], name); |
56b6aeb0 HMH |
719 | return; |
720 | } | |
721 | } | |
722 | ||
5ae930e6 HMH |
723 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
724 | name); | |
56b6aeb0 HMH |
725 | *handle = NULL; |
726 | } | |
727 | ||
437e470c HMH |
728 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
729 | u32 level, void *context, void **return_value) | |
730 | { | |
46445b6b AL |
731 | struct acpi_device *dev; |
732 | if (!strcmp(context, "video")) { | |
733 | if (acpi_bus_get_device(handle, &dev)) | |
734 | return AE_OK; | |
735 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
736 | return AE_OK; | |
737 | } | |
738 | ||
437e470c HMH |
739 | *(acpi_handle *)return_value = handle; |
740 | ||
741 | return AE_CTRL_TERMINATE; | |
742 | } | |
743 | ||
744 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
745 | const char *hid, | |
746 | acpi_handle *handle) | |
747 | { | |
748 | acpi_status status; | |
749 | acpi_handle device_found; | |
750 | ||
46445b6b | 751 | BUG_ON(!name || !handle); |
437e470c HMH |
752 | vdbg_printk(TPACPI_DBG_INIT, |
753 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 754 | name, hid ? hid : "NULL"); |
437e470c HMH |
755 | |
756 | memset(&device_found, 0, sizeof(device_found)); | |
757 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
758 | (void *)name, &device_found); | |
759 | ||
760 | *handle = NULL; | |
761 | ||
762 | if (ACPI_SUCCESS(status)) { | |
763 | *handle = device_found; | |
764 | dbg_printk(TPACPI_DBG_INIT, | |
765 | "Found ACPI handle for %s\n", name); | |
766 | } else { | |
767 | vdbg_printk(TPACPI_DBG_INIT, | |
768 | "Could not locate an ACPI handle for %s: %s\n", | |
769 | name, acpi_format_exception(status)); | |
770 | } | |
771 | } | |
772 | ||
8d376cd6 | 773 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
774 | { |
775 | struct ibm_struct *ibm = data; | |
776 | ||
8fef502e HMH |
777 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
778 | return; | |
779 | ||
8d376cd6 | 780 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
781 | return; |
782 | ||
8d376cd6 | 783 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
784 | } |
785 | ||
8d376cd6 | 786 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
787 | { |
788 | acpi_status status; | |
5ae930e6 | 789 | int rc; |
56b6aeb0 | 790 | |
8d376cd6 HMH |
791 | BUG_ON(!ibm->acpi); |
792 | ||
793 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
794 | return 0; |
795 | ||
5ae930e6 | 796 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
797 | "setting up ACPI notify for %s\n", ibm->name); |
798 | ||
5ae930e6 HMH |
799 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
800 | if (rc < 0) { | |
0978e012 | 801 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
802 | return -ENODEV; |
803 | } | |
804 | ||
db89b4f0 | 805 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 806 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 807 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 808 | ibm->name); |
56b6aeb0 | 809 | |
8d376cd6 HMH |
810 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
811 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
812 | if (ACPI_FAILURE(status)) { |
813 | if (status == AE_ALREADY_EXISTS) { | |
5cac62ac AS |
814 | pr_notice("another device driver is already handling %s events\n", |
815 | ibm->name); | |
56b6aeb0 | 816 | } else { |
0978e012 | 817 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 818 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
819 | } |
820 | return -ENODEV; | |
821 | } | |
8d376cd6 | 822 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
823 | return 0; |
824 | } | |
825 | ||
8d376cd6 | 826 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
827 | { |
828 | return 0; | |
829 | } | |
830 | ||
6700121b | 831 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 832 | { |
5ae930e6 | 833 | int rc; |
56b6aeb0 | 834 | |
fe08bc4b HMH |
835 | dbg_printk(TPACPI_DBG_INIT, |
836 | "registering %s as an ACPI driver\n", ibm->name); | |
837 | ||
8d376cd6 HMH |
838 | BUG_ON(!ibm->acpi); |
839 | ||
840 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
841 | if (!ibm->acpi->driver) { | |
0978e012 | 842 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 843 | return -ENOMEM; |
56b6aeb0 HMH |
844 | } |
845 | ||
e0c7dfe7 | 846 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 847 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 848 | |
8d376cd6 | 849 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 850 | |
5ae930e6 HMH |
851 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
852 | if (rc < 0) { | |
0978e012 | 853 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 854 | ibm->name, rc); |
8d376cd6 HMH |
855 | kfree(ibm->acpi->driver); |
856 | ibm->acpi->driver = NULL; | |
5ae930e6 | 857 | } else if (!rc) |
8d376cd6 | 858 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 859 | |
5ae930e6 | 860 | return rc; |
56b6aeb0 HMH |
861 | } |
862 | ||
863 | ||
864 | /**************************************************************************** | |
865 | **************************************************************************** | |
866 | * | |
867 | * Procfs Helpers | |
868 | * | |
869 | **************************************************************************** | |
870 | ****************************************************************************/ | |
871 | ||
887965e6 | 872 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 873 | { |
887965e6 | 874 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
875 | |
876 | if (!ibm || !ibm->read) | |
877 | return -EINVAL; | |
887965e6 AD |
878 | return ibm->read(m); |
879 | } | |
56b6aeb0 | 880 | |
887965e6 AD |
881 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
882 | { | |
d9dda78b | 883 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
884 | } |
885 | ||
887965e6 | 886 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 887 | const char __user *userbuf, |
887965e6 | 888 | size_t count, loff_t *pos) |
56b6aeb0 | 889 | { |
d9dda78b | 890 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
891 | char *kernbuf; |
892 | int ret; | |
893 | ||
894 | if (!ibm || !ibm->write) | |
895 | return -EINVAL; | |
df11f6c5 AS |
896 | if (count > PAGE_SIZE - 1) |
897 | return -EINVAL; | |
898 | ||
899 | kernbuf = kmalloc(count + 1, GFP_KERNEL); | |
900 | if (!kernbuf) | |
901 | return -ENOMEM; | |
1da177e4 | 902 | |
df11f6c5 AS |
903 | if (copy_from_user(kernbuf, userbuf, count)) { |
904 | kfree(kernbuf); | |
905 | return -EFAULT; | |
906 | } | |
1da177e4 | 907 | |
df11f6c5 | 908 | kernbuf[count] = 0; |
56b6aeb0 HMH |
909 | ret = ibm->write(kernbuf); |
910 | if (ret == 0) | |
911 | ret = count; | |
1da177e4 | 912 | |
56b6aeb0 HMH |
913 | kfree(kernbuf); |
914 | ||
915 | return ret; | |
1da177e4 LT |
916 | } |
917 | ||
97a32539 AD |
918 | static const struct proc_ops dispatch_proc_ops = { |
919 | .proc_open = dispatch_proc_open, | |
920 | .proc_read = seq_read, | |
921 | .proc_lseek = seq_lseek, | |
922 | .proc_release = single_release, | |
923 | .proc_write = dispatch_proc_write, | |
887965e6 AD |
924 | }; |
925 | ||
54ae1501 HMH |
926 | /**************************************************************************** |
927 | **************************************************************************** | |
928 | * | |
7f5d1cd6 | 929 | * Device model: input, hwmon and platform |
54ae1501 HMH |
930 | * |
931 | **************************************************************************** | |
932 | ****************************************************************************/ | |
933 | ||
94954cc6 | 934 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 935 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 936 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 937 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 938 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 939 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 940 | |
3567a4e2 | 941 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 942 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
943 | { |
944 | struct ibm_struct *ibm, *itmp; | |
945 | ||
946 | list_for_each_entry_safe(ibm, itmp, | |
947 | &tpacpi_all_drivers, | |
948 | all_drivers) { | |
949 | if (ibm->suspend) | |
fd3c3a42 | 950 | (ibm->suspend)(); |
083f1760 HMH |
951 | } |
952 | ||
953 | return 0; | |
954 | } | |
955 | ||
4959a781 | 956 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
957 | { |
958 | struct ibm_struct *ibm, *itmp; | |
959 | ||
960 | list_for_each_entry_safe(ibm, itmp, | |
961 | &tpacpi_all_drivers, | |
962 | all_drivers) { | |
963 | if (ibm->resume) | |
964 | (ibm->resume)(); | |
965 | } | |
966 | ||
967 | return 0; | |
968 | } | |
3567a4e2 | 969 | #endif |
e295e850 | 970 | |
4959a781 RW |
971 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
972 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
973 | ||
90d9d3c7 HMH |
974 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
975 | { | |
976 | struct ibm_struct *ibm, *itmp; | |
977 | ||
978 | list_for_each_entry_safe(ibm, itmp, | |
979 | &tpacpi_all_drivers, | |
980 | all_drivers) { | |
981 | if (ibm->shutdown) | |
982 | (ibm->shutdown)(); | |
983 | } | |
984 | } | |
985 | ||
54ae1501 HMH |
986 | static struct platform_driver tpacpi_pdriver = { |
987 | .driver = { | |
e0c7dfe7 | 988 | .name = TPACPI_DRVR_NAME, |
4959a781 | 989 | .pm = &tpacpi_pm, |
54ae1501 | 990 | }, |
90d9d3c7 | 991 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
992 | }; |
993 | ||
7fd40029 HMH |
994 | static struct platform_driver tpacpi_hwmon_pdriver = { |
995 | .driver = { | |
e0c7dfe7 | 996 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
997 | }, |
998 | }; | |
54ae1501 | 999 | |
176750d6 | 1000 | /************************************************************************* |
b21a15f6 | 1001 | * sysfs support helpers |
176750d6 HMH |
1002 | */ |
1003 | ||
b21a15f6 HMH |
1004 | struct attribute_set { |
1005 | unsigned int members, max_members; | |
1006 | struct attribute_group group; | |
176750d6 HMH |
1007 | }; |
1008 | ||
7252374a HMH |
1009 | struct attribute_set_obj { |
1010 | struct attribute_set s; | |
1011 | struct attribute *a; | |
1012 | } __attribute__((packed)); | |
1013 | ||
1014 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1015 | const char *name) |
7252374a HMH |
1016 | { |
1017 | struct attribute_set_obj *sobj; | |
1018 | ||
1019 | if (max_members == 0) | |
1020 | return NULL; | |
1021 | ||
1022 | /* Allocates space for implicit NULL at the end too */ | |
1023 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1024 | max_members * sizeof(struct attribute *), | |
1025 | GFP_KERNEL); | |
1026 | if (!sobj) | |
1027 | return NULL; | |
1028 | sobj->s.max_members = max_members; | |
1029 | sobj->s.group.attrs = &sobj->a; | |
1030 | sobj->s.group.name = name; | |
1031 | ||
1032 | return &sobj->s; | |
1033 | } | |
1034 | ||
f74a27d4 | 1035 | #define destroy_attr_set(_set) \ |
06706da2 | 1036 | kfree(_set) |
f74a27d4 | 1037 | |
7252374a | 1038 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1039 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1040 | { |
1041 | if (!s || !attr) | |
1042 | return -EINVAL; | |
1043 | ||
1044 | if (s->members >= s->max_members) | |
1045 | return -ENOMEM; | |
1046 | ||
1047 | s->group.attrs[s->members] = attr; | |
1048 | s->members++; | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
35ff8b9f | 1053 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1054 | struct attribute **attr, |
1055 | unsigned int count) | |
1056 | { | |
1057 | int i, res; | |
1058 | ||
1059 | for (i = 0; i < count; i++) { | |
1060 | res = add_to_attr_set(s, attr[i]); | |
1061 | if (res) | |
1062 | return res; | |
1063 | } | |
1064 | ||
1065 | return 0; | |
1066 | } | |
1067 | ||
35ff8b9f | 1068 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1069 | { |
1070 | sysfs_remove_group(kobj, &s->group); | |
1071 | destroy_attr_set(s); | |
1072 | } | |
1073 | ||
f74a27d4 HMH |
1074 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1075 | sysfs_create_group(_kobj, &_attr_set->group) | |
1076 | ||
7252374a HMH |
1077 | static int parse_strtoul(const char *buf, |
1078 | unsigned long max, unsigned long *value) | |
1079 | { | |
1080 | char *endp; | |
1081 | ||
e7d2860b AGR |
1082 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1083 | endp = skip_spaces(endp); | |
7252374a HMH |
1084 | if (*endp || *value > max) |
1085 | return -EINVAL; | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
d64c81c4 HMH |
1090 | static void tpacpi_disable_brightness_delay(void) |
1091 | { | |
1092 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1093 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1094 | } |
1095 | ||
19d337df JB |
1096 | static void printk_deprecated_attribute(const char * const what, |
1097 | const char * const details) | |
1098 | { | |
1099 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
5cac62ac | 1100 | pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n", |
19d337df JB |
1101 | what, details); |
1102 | } | |
1103 | ||
1104 | /************************************************************************* | |
1105 | * rfkill and radio control support helpers | |
1106 | */ | |
1107 | ||
1108 | /* | |
1109 | * ThinkPad-ACPI firmware handling model: | |
1110 | * | |
1111 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1112 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1113 | * as expected. It overrides all radio state in firmware | |
1114 | * | |
1115 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1116 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1117 | * | |
1118 | * The only time there are shadow radio state changes, is when | |
1119 | * masked-off hotkeys are used. | |
1120 | */ | |
1121 | ||
1122 | /* | |
1123 | * Internal driver API for radio state: | |
1124 | * | |
1125 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1126 | * bool: true means radio blocked (off) | |
1127 | */ | |
1128 | enum tpacpi_rfkill_state { | |
1129 | TPACPI_RFK_RADIO_OFF = 0, | |
1130 | TPACPI_RFK_RADIO_ON | |
1131 | }; | |
1132 | ||
1133 | /* rfkill switches */ | |
1134 | enum tpacpi_rfk_id { | |
1135 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1136 | TPACPI_RFK_WWAN_SW_ID, | |
1137 | TPACPI_RFK_UWB_SW_ID, | |
1138 | TPACPI_RFK_SW_MAX | |
1139 | }; | |
1140 | ||
1141 | static const char *tpacpi_rfkill_names[] = { | |
1142 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1143 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1144 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1145 | [TPACPI_RFK_SW_MAX] = NULL | |
1146 | }; | |
1147 | ||
1148 | /* ThinkPad-ACPI rfkill subdriver */ | |
1149 | struct tpacpi_rfk { | |
1150 | struct rfkill *rfkill; | |
1151 | enum tpacpi_rfk_id id; | |
1152 | const struct tpacpi_rfk_ops *ops; | |
1153 | }; | |
1154 | ||
1155 | struct tpacpi_rfk_ops { | |
1156 | /* firmware interface */ | |
1157 | int (*get_status)(void); | |
1158 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1159 | }; | |
1160 | ||
1161 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1162 | ||
1163 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1164 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1165 | { | |
1166 | int status; | |
1167 | ||
1168 | if (!tp_rfk) | |
1169 | return -ENODEV; | |
1170 | ||
1171 | status = (tp_rfk->ops->get_status)(); | |
1172 | if (status < 0) | |
1173 | return status; | |
1174 | ||
1175 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1176 | (status == TPACPI_RFK_RADIO_OFF)); | |
1177 | ||
1178 | return status; | |
1179 | } | |
1180 | ||
19d337df JB |
1181 | /* |
1182 | * Sync the HW-blocking state of all rfkill switches, | |
1183 | * do notice it causes the rfkill core to schedule uevents | |
1184 | */ | |
1185 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1186 | { | |
1187 | unsigned int i; | |
1188 | struct tpacpi_rfk *tp_rfk; | |
1189 | ||
1190 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1191 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1192 | if (tp_rfk) { | |
1193 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1194 | blocked)) { | |
1195 | /* ignore -- we track sw block */ | |
1196 | } | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | /* Call to get the WLSW state from the firmware */ | |
1202 | static int hotkey_get_wlsw(void); | |
1203 | ||
1204 | /* Call to query WLSW state and update all rfkill switches */ | |
1205 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1206 | { | |
1207 | int res = hotkey_get_wlsw(); | |
1208 | int hw_blocked; | |
1209 | ||
1210 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1211 | if (res < 0) | |
1212 | return false; | |
1213 | ||
1214 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1215 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1216 | ||
1217 | return hw_blocked; | |
1218 | } | |
1219 | ||
1220 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1221 | { | |
1222 | struct tpacpi_rfk *tp_rfk = data; | |
1223 | int res; | |
1224 | ||
1225 | dbg_printk(TPACPI_DBG_RFKILL, | |
1226 | "request to change radio state to %s\n", | |
1227 | blocked ? "blocked" : "unblocked"); | |
1228 | ||
1229 | /* try to set radio state */ | |
1230 | res = (tp_rfk->ops->set_status)(blocked ? | |
1231 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1232 | ||
1233 | /* and update the rfkill core with whatever the FW really did */ | |
1234 | tpacpi_rfk_update_swstate(tp_rfk); | |
1235 | ||
1236 | return (res < 0) ? res : 0; | |
1237 | } | |
1238 | ||
1239 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1240 | .set_block = tpacpi_rfk_hook_set_block, | |
1241 | }; | |
1242 | ||
1243 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1244 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1245 | const enum rfkill_type rfktype, |
1246 | const char *name, | |
19d337df | 1247 | const bool set_default) |
0e74dc26 | 1248 | { |
19d337df | 1249 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1250 | int res; |
06d5caf4 | 1251 | bool sw_state = false; |
5451a923 | 1252 | bool hw_state; |
06d5caf4 | 1253 | int sw_status; |
90d9d3c7 | 1254 | |
19d337df JB |
1255 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1256 | ||
19d337df JB |
1257 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1258 | if (atp_rfk) | |
1259 | atp_rfk->rfkill = rfkill_alloc(name, | |
1260 | &tpacpi_pdev->dev, | |
1261 | rfktype, | |
1262 | &tpacpi_rfk_rfkill_ops, | |
1263 | atp_rfk); | |
1264 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1265 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1266 | kfree(atp_rfk); |
0e74dc26 HMH |
1267 | return -ENOMEM; |
1268 | } | |
1269 | ||
19d337df JB |
1270 | atp_rfk->id = id; |
1271 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1272 | |
06d5caf4 AJ |
1273 | sw_status = (tp_rfkops->get_status)(); |
1274 | if (sw_status < 0) { | |
0978e012 JP |
1275 | pr_err("failed to read initial state for %s, error %d\n", |
1276 | name, sw_status); | |
b3fa1329 | 1277 | } else { |
06d5caf4 | 1278 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1279 | if (set_default) { |
1280 | /* try to keep the initial state, since we ask the | |
1281 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1282 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1283 | } |
1284 | } | |
5451a923 HMH |
1285 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1286 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1287 | |
1288 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1289 | if (res < 0) { |
0978e012 | 1290 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1291 | rfkill_destroy(atp_rfk->rfkill); |
1292 | kfree(atp_rfk); | |
0e74dc26 HMH |
1293 | return res; |
1294 | } | |
1295 | ||
19d337df | 1296 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1297 | |
0978e012 | 1298 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1299 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1300 | return 0; |
1301 | } | |
1302 | ||
19d337df | 1303 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1304 | { |
19d337df JB |
1305 | struct tpacpi_rfk *tp_rfk; |
1306 | ||
1307 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1308 | ||
1309 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1310 | if (tp_rfk) { | |
1311 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1312 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1313 | tpacpi_rfkill_switches[id] = NULL; |
1314 | kfree(tp_rfk); | |
1315 | } | |
73a94d86 HMH |
1316 | } |
1317 | ||
1318 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1319 | { | |
1320 | printk_deprecated_attribute(what, | |
1321 | "Please switch to generic rfkill before year 2010"); | |
1322 | } | |
1323 | ||
19d337df JB |
1324 | /* sysfs <radio> enable ------------------------------------------------ */ |
1325 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1326 | struct device_attribute *attr, | |
1327 | char *buf) | |
1328 | { | |
1329 | int status; | |
1330 | ||
1331 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1332 | ||
1333 | /* This is in the ABI... */ | |
1334 | if (tpacpi_rfk_check_hwblock_state()) { | |
1335 | status = TPACPI_RFK_RADIO_OFF; | |
1336 | } else { | |
1337 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1338 | if (status < 0) | |
1339 | return status; | |
1340 | } | |
1341 | ||
1342 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1343 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1344 | } | |
1345 | ||
1346 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1347 | struct device_attribute *attr, | |
1348 | const char *buf, size_t count) | |
1349 | { | |
1350 | unsigned long t; | |
1351 | int res; | |
1352 | ||
1353 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1354 | ||
1355 | if (parse_strtoul(buf, 1, &t)) | |
1356 | return -EINVAL; | |
1357 | ||
1358 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1359 | ||
1360 | /* This is in the ABI... */ | |
1361 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1362 | return -EPERM; | |
1363 | ||
1364 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1365 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1366 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1367 | ||
1368 | return (res < 0) ? res : count; | |
1369 | } | |
1370 | ||
1371 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1372 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1373 | { |
19d337df | 1374 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1375 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1376 | else { |
1377 | int status; | |
1378 | ||
1379 | /* This is in the ABI... */ | |
1380 | if (tpacpi_rfk_check_hwblock_state()) { | |
1381 | status = TPACPI_RFK_RADIO_OFF; | |
1382 | } else { | |
1383 | status = tpacpi_rfk_update_swstate( | |
1384 | tpacpi_rfkill_switches[id]); | |
1385 | if (status < 0) | |
1386 | return status; | |
1387 | } | |
1388 | ||
887965e6 | 1389 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1390 | (status == TPACPI_RFK_RADIO_ON) ? |
1391 | "enabled" : "disabled"); | |
887965e6 | 1392 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1393 | } |
1394 | ||
887965e6 | 1395 | return 0; |
19d337df JB |
1396 | } |
1397 | ||
1398 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1399 | { | |
1400 | char *cmd; | |
1401 | int status = -1; | |
1402 | int res = 0; | |
1403 | ||
1404 | if (id >= TPACPI_RFK_SW_MAX) | |
1405 | return -ENODEV; | |
1406 | ||
be51bd45 | 1407 | while ((cmd = strsep(&buf, ","))) { |
19d337df JB |
1408 | if (strlencmp(cmd, "enable") == 0) |
1409 | status = TPACPI_RFK_RADIO_ON; | |
1410 | else if (strlencmp(cmd, "disable") == 0) | |
1411 | status = TPACPI_RFK_RADIO_OFF; | |
1412 | else | |
1413 | return -EINVAL; | |
1414 | } | |
1415 | ||
1416 | if (status != -1) { | |
1417 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1418 | (status == TPACPI_RFK_RADIO_ON) ? | |
1419 | "enable" : "disable", | |
1420 | tpacpi_rfkill_names[id]); | |
1421 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1422 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1423 | } | |
1424 | ||
1425 | return res; | |
1426 | } | |
1427 | ||
56b6aeb0 | 1428 | /************************************************************************* |
b21a15f6 | 1429 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1430 | */ |
1431 | ||
b21a15f6 | 1432 | /* interface_version --------------------------------------------------- */ |
ac3054c4 | 1433 | static ssize_t interface_version_show(struct device_driver *drv, char *buf) |
1da177e4 | 1434 | { |
b21a15f6 HMH |
1435 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1436 | } | |
ac3054c4 | 1437 | static DRIVER_ATTR_RO(interface_version); |
b21a15f6 HMH |
1438 | |
1439 | /* debug_level --------------------------------------------------------- */ | |
ac3054c4 | 1440 | static ssize_t debug_level_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
1441 | { |
1442 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1443 | } | |
1444 | ||
ac3054c4 GKH |
1445 | static ssize_t debug_level_store(struct device_driver *drv, const char *buf, |
1446 | size_t count) | |
b21a15f6 HMH |
1447 | { |
1448 | unsigned long t; | |
1449 | ||
1450 | if (parse_strtoul(buf, 0xffff, &t)) | |
1451 | return -EINVAL; | |
1452 | ||
1453 | dbg_level = t; | |
1454 | ||
1455 | return count; | |
1456 | } | |
ac3054c4 | 1457 | static DRIVER_ATTR_RW(debug_level); |
b21a15f6 HMH |
1458 | |
1459 | /* version ------------------------------------------------------------- */ | |
ac3054c4 | 1460 | static ssize_t version_show(struct device_driver *drv, char *buf) |
b21a15f6 | 1461 | { |
35ff8b9f HMH |
1462 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1463 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 | 1464 | } |
ac3054c4 | 1465 | static DRIVER_ATTR_RO(version); |
b21a15f6 HMH |
1466 | |
1467 | /* --------------------------------------------------------------------- */ | |
1468 | ||
a73f3091 HMH |
1469 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1470 | ||
a73f3091 | 1471 | /* wlsw_emulstate ------------------------------------------------------ */ |
ac3054c4 | 1472 | static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1473 | { |
1474 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1475 | } | |
1476 | ||
ac3054c4 GKH |
1477 | static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf, |
1478 | size_t count) | |
a73f3091 HMH |
1479 | { |
1480 | unsigned long t; | |
1481 | ||
1482 | if (parse_strtoul(buf, 1, &t)) | |
1483 | return -EINVAL; | |
1484 | ||
19d337df | 1485 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1486 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1487 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1488 | } | |
a73f3091 HMH |
1489 | |
1490 | return count; | |
1491 | } | |
ac3054c4 | 1492 | static DRIVER_ATTR_RW(wlsw_emulstate); |
a73f3091 HMH |
1493 | |
1494 | /* bluetooth_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1495 | static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1496 | { |
1497 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1498 | } | |
1499 | ||
ac3054c4 GKH |
1500 | static ssize_t bluetooth_emulstate_store(struct device_driver *drv, |
1501 | const char *buf, size_t count) | |
a73f3091 HMH |
1502 | { |
1503 | unsigned long t; | |
1504 | ||
1505 | if (parse_strtoul(buf, 1, &t)) | |
1506 | return -EINVAL; | |
1507 | ||
1508 | tpacpi_bluetooth_emulstate = !!t; | |
1509 | ||
1510 | return count; | |
1511 | } | |
ac3054c4 | 1512 | static DRIVER_ATTR_RW(bluetooth_emulstate); |
a73f3091 HMH |
1513 | |
1514 | /* wwan_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1515 | static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1516 | { |
1517 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1518 | } | |
1519 | ||
ac3054c4 GKH |
1520 | static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf, |
1521 | size_t count) | |
a73f3091 HMH |
1522 | { |
1523 | unsigned long t; | |
1524 | ||
1525 | if (parse_strtoul(buf, 1, &t)) | |
1526 | return -EINVAL; | |
1527 | ||
1528 | tpacpi_wwan_emulstate = !!t; | |
1529 | ||
1530 | return count; | |
1531 | } | |
ac3054c4 | 1532 | static DRIVER_ATTR_RW(wwan_emulstate); |
a73f3091 | 1533 | |
0045c0aa | 1534 | /* uwb_emulstate ------------------------------------------------- */ |
ac3054c4 | 1535 | static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf) |
0045c0aa HMH |
1536 | { |
1537 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1538 | } | |
1539 | ||
ac3054c4 GKH |
1540 | static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf, |
1541 | size_t count) | |
0045c0aa HMH |
1542 | { |
1543 | unsigned long t; | |
1544 | ||
1545 | if (parse_strtoul(buf, 1, &t)) | |
1546 | return -EINVAL; | |
1547 | ||
1548 | tpacpi_uwb_emulstate = !!t; | |
1549 | ||
1550 | return count; | |
1551 | } | |
ac3054c4 | 1552 | static DRIVER_ATTR_RW(uwb_emulstate); |
a73f3091 HMH |
1553 | #endif |
1554 | ||
1555 | /* --------------------------------------------------------------------- */ | |
1556 | ||
35ff8b9f | 1557 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1558 | &driver_attr_debug_level, &driver_attr_version, |
1559 | &driver_attr_interface_version, | |
1560 | }; | |
1561 | ||
1562 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1563 | { | |
1564 | int i, res; | |
1565 | ||
1566 | i = 0; | |
1567 | res = 0; | |
1568 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1569 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1570 | i++; | |
1571 | } | |
1572 | ||
a73f3091 HMH |
1573 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1574 | if (!res && dbg_wlswemul) | |
1575 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1576 | if (!res && dbg_bluetoothemul) | |
1577 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1578 | if (!res && dbg_wwanemul) | |
1579 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1580 | if (!res && dbg_uwbemul) |
1581 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1582 | #endif |
1583 | ||
b21a15f6 HMH |
1584 | return res; |
1585 | } | |
1586 | ||
1587 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1588 | { | |
1589 | int i; | |
1590 | ||
35ff8b9f | 1591 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1592 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1593 | |
1594 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1595 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1596 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1597 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1598 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1599 | #endif |
b21a15f6 HMH |
1600 | } |
1601 | ||
600a99fa HMH |
1602 | /************************************************************************* |
1603 | * Firmware Data | |
1604 | */ | |
1605 | ||
1606 | /* | |
1607 | * Table of recommended minimum BIOS versions | |
1608 | * | |
1609 | * Reasons for listing: | |
9ddc5b6f | 1610 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1611 | * bugs and bad ACPI behaviour on older versions |
1612 | * | |
1613 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1614 | * | |
1615 | * 3. BIOS with known reduced functionality in older versions | |
1616 | * | |
1617 | * We recommend the latest BIOS and EC version. | |
1618 | * We only support the latest BIOS and EC fw version as a rule. | |
1619 | * | |
1620 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1621 | * Information from users in ThinkWiki | |
e675abaf HMH |
1622 | * |
1623 | * WARNING: we use this table also to detect that the machine is | |
1624 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1625 | */ |
1626 | ||
1627 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1628 | { .vendor = (__v), \ | |
1629 | .bios = TPID(__id1, __id2), \ | |
1630 | .ec = TPACPI_MATCH_ANY, \ | |
846a416b JW |
1631 | .quirks = TPACPI_MATCH_ANY_VERSION << 16 \ |
1632 | | TPVER(__bv1, __bv2) } | |
600a99fa HMH |
1633 | |
1634 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1635 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1636 | { .vendor = (__v), \ |
1637 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1638 | .ec = __eid, \ |
846a416b JW |
1639 | .quirks = TPVER(__ev1, __ev2) << 16 \ |
1640 | | TPVER(__bv1, __bv2) } | |
600a99fa HMH |
1641 | |
1642 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1643 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1644 | ||
275014ae | 1645 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1646 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1647 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1648 | __bv1, __bv2, TPID(__id1, __id2), \ |
1649 | __ev1, __ev2), \ | |
1650 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1651 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1652 | __ev1, __ev2) | |
600a99fa | 1653 | |
275014ae | 1654 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1655 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1656 | __eid1, __eid2, __ev1, __ev2) \ | |
1657 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1658 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1659 | __ev1, __ev2), \ | |
1660 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1661 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1662 | __ev1, __ev2) | |
600a99fa HMH |
1663 | |
1664 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1665 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1666 | ||
1667 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1668 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1669 | __bv1, __bv2, TPID(__id1, __id2), \ |
1670 | __ev1, __ev2) | |
600a99fa HMH |
1671 | |
1672 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1673 | __eid1, __eid2, __ev1, __ev2) \ | |
1674 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1675 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1676 | __ev1, __ev2) | |
600a99fa HMH |
1677 | |
1678 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1679 | /* Numeric models ------------------ */ | |
1680 | /* FW MODEL BIOS VERS */ | |
1681 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1682 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1683 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1684 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1685 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1686 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1687 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1688 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1689 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1690 | ||
1691 | /* A-series ------------------------- */ | |
1692 | /* FW MODEL BIOS VERS EC VERS */ | |
1693 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1694 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1695 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1696 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1697 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1698 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1699 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1700 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1701 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1702 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1703 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1704 | ||
1705 | /* G-series ------------------------- */ | |
1706 | /* FW MODEL BIOS VERS */ | |
1707 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1708 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1709 | ||
1710 | /* R-series, T-series --------------- */ | |
1711 | /* FW MODEL BIOS VERS EC VERS */ | |
1712 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1713 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1714 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1715 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1716 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1717 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1718 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1719 | T40/p, T41/p, T42/p (1) */ | |
1720 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1721 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1722 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1723 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1724 | ||
1725 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1726 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1727 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1728 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1729 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1730 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1731 | ||
1732 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1733 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1734 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1735 | |
1736 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1737 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1738 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1739 | ||
1740 | /* X-series ------------------------- */ | |
1741 | /* FW MODEL BIOS VERS EC VERS */ | |
1742 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1743 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1744 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1745 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1746 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1747 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1748 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1749 | ||
90765c6a HMH |
1750 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1751 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1752 | |
1753 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1754 | /* (1) - older versions known to lack functionality */ | |
1755 | }; | |
1756 | ||
1757 | #undef TPV_QL1 | |
1758 | #undef TPV_QL0 | |
1759 | #undef TPV_QI2 | |
1760 | #undef TPV_QI1 | |
1761 | #undef TPV_QI0 | |
1762 | #undef TPV_Q_X | |
1763 | #undef TPV_Q | |
1764 | ||
1765 | static void __init tpacpi_check_outdated_fw(void) | |
1766 | { | |
1767 | unsigned long fwvers; | |
1768 | u16 ec_version, bios_version; | |
1769 | ||
1770 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1771 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1772 | ||
1773 | if (!fwvers) | |
1774 | return; | |
1775 | ||
1776 | bios_version = fwvers & 0xffffU; | |
1777 | ec_version = (fwvers >> 16) & 0xffffU; | |
1778 | ||
1779 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1780 | if ((bios_version > thinkpad_id.bios_release) || | |
1781 | (ec_version > thinkpad_id.ec_release && | |
846a416b | 1782 | ec_version != TPACPI_MATCH_ANY_VERSION)) { |
600a99fa HMH |
1783 | /* |
1784 | * The changelogs would let us track down the exact | |
1785 | * reason, but it is just too much of a pain to track | |
1786 | * it. We only list BIOSes that are either really | |
1787 | * broken, or really stable to begin with, so it is | |
1788 | * best if the user upgrades the firmware anyway. | |
1789 | */ | |
0978e012 | 1790 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
5cac62ac | 1791 | pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n"); |
600a99fa HMH |
1792 | } |
1793 | } | |
1794 | ||
e675abaf HMH |
1795 | static bool __init tpacpi_is_fw_known(void) |
1796 | { | |
1797 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1798 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1799 | } | |
1800 | ||
b21a15f6 HMH |
1801 | /**************************************************************************** |
1802 | **************************************************************************** | |
1803 | * | |
1804 | * Subdrivers | |
1805 | * | |
1806 | **************************************************************************** | |
1807 | ****************************************************************************/ | |
1808 | ||
1809 | /************************************************************************* | |
7a43f788 | 1810 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1811 | */ |
1812 | ||
887965e6 | 1813 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1814 | { |
887965e6 AD |
1815 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1816 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1817 | return 0; | |
1da177e4 LT |
1818 | } |
1819 | ||
a5763f22 HMH |
1820 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1821 | .name = "driver", | |
1822 | .read = thinkpad_acpi_driver_read, | |
1823 | }; | |
1824 | ||
56b6aeb0 HMH |
1825 | /************************************************************************* |
1826 | * Hotkey subdriver | |
1827 | */ | |
1828 | ||
0d922e3b HMH |
1829 | /* |
1830 | * ThinkPad firmware event model | |
1831 | * | |
1832 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1833 | * notifications (which follow the ACPI standard), and a private event | |
1834 | * interface. | |
1835 | * | |
1836 | * The private event interface also issues events for the hotkeys. As | |
1837 | * the driver gained features, the event handling code ended up being | |
1838 | * built around the hotkey subdriver. This will need to be refactored | |
1839 | * to a more formal event API eventually. | |
1840 | * | |
1841 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1842 | * such as "brightness has changed", "volume has changed", depending on | |
1843 | * the ThinkPad model and how the firmware is operating. | |
1844 | * | |
1845 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1846 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1847 | * firmware model and version. | |
1848 | */ | |
1849 | ||
f74a27d4 HMH |
1850 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1851 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1852 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1853 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1854 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1855 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1856 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1857 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1858 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1859 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1860 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1861 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1862 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1863 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1864 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1865 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1866 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1867 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1868 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1869 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1870 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1871 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1872 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1873 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1874 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1875 | TP_ACPI_HOTKEYSCAN_UNK1, |
1876 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1877 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1878 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1879 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1880 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1881 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1882 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1883 | ||
149c8c75 CK |
1884 | /* Adaptive keyboard keycodes */ |
1885 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
1886 | TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
6a68d855 BN |
1887 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, |
1888 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1889 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1890 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1891 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1892 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1893 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1894 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1895 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1896 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1897 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1898 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1899 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1900 | TP_ACPI_HOTKEYSCAN_BACK, | |
1901 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1902 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1903 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1904 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1905 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1906 | ||
696c6523 CK |
1907 | /* Lenovo extended keymap, starting at 0x1300 */ |
1908 | TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
1909 | /* first new observed key (star, favorites) is 0x1311 */ | |
1910 | TP_ACPI_HOTKEYSCAN_STAR = 69, | |
1911 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, | |
cb5c1978 | 1912 | TP_ACPI_HOTKEYSCAN_CALCULATOR, |
696c6523 CK |
1913 | TP_ACPI_HOTKEYSCAN_BLUETOOTH, |
1914 | TP_ACPI_HOTKEYSCAN_KEYBOARD, | |
7ed7748d HG |
1915 | TP_ACPI_HOTKEYSCAN_FN_RIGHT_SHIFT, /* Used by "Lenovo Quick Clean" */ |
1916 | TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER, | |
1917 | TP_ACPI_HOTKEYSCAN_PICKUP_PHONE, | |
1918 | TP_ACPI_HOTKEYSCAN_HANGUP_PHONE, | |
696c6523 | 1919 | |
34a656d2 HMH |
1920 | /* Hotkey keymap size */ |
1921 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1922 | }; |
1923 | ||
0d922e3b | 1924 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1925 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1926 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1927 | }; | |
1928 | ||
1929 | enum { /* Positions of some of the keys in hotkey masks */ | |
1930 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1931 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1932 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1933 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1934 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
c685e20d | 1935 | TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
01e88f25 HMH |
1936 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, |
1937 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1938 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1939 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1940 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1941 | }; | |
1942 | ||
1943 | enum { /* NVRAM to ACPI HKEY group map */ | |
1944 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1945 | TP_ACPI_HKEY_ZOOM_MASK | | |
1946 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1947 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1948 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1949 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1950 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1951 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1952 | TP_ACPI_HKEY_MUTE_MASK, | |
1953 | }; | |
1954 | ||
1955 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1956 | struct tp_nvram_state { | |
1957 | u16 thinkpad_toggle:1; | |
1958 | u16 zoom_toggle:1; | |
1959 | u16 display_toggle:1; | |
1960 | u16 thinklight_toggle:1; | |
1961 | u16 hibernate_toggle:1; | |
1962 | u16 displayexp_toggle:1; | |
1963 | u16 display_state:1; | |
1964 | u16 brightness_toggle:1; | |
1965 | u16 volume_toggle:1; | |
1966 | u16 mute:1; | |
1967 | ||
1968 | u8 brightness_level; | |
1969 | u8 volume_level; | |
1970 | }; | |
1971 | ||
db25f16d | 1972 | /* kthread for the hotkey poller */ |
01e88f25 | 1973 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 1974 | |
db25f16d | 1975 | /* |
0d922e3b HMH |
1976 | * Acquire mutex to write poller control variables as an |
1977 | * atomic block. | |
1978 | * | |
1979 | * Increment hotkey_config_change when changing them if you | |
1980 | * want the kthread to forget old state. | |
db25f16d HMH |
1981 | * |
1982 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1983 | */ | |
01e88f25 HMH |
1984 | static struct mutex hotkey_thread_data_mutex; |
1985 | static unsigned int hotkey_config_change; | |
1986 | ||
db25f16d HMH |
1987 | /* |
1988 | * hotkey poller control variables | |
1989 | * | |
1990 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
1991 | * |
1992 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1993 | * should be used only when the changes need to be taken as | |
1994 | * a block, OR when one needs to force the kthread to forget | |
1995 | * old state. | |
db25f16d HMH |
1996 | */ |
1997 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1998 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
1999 | ||
2000 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2001 | do { \ | |
2002 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2003 | hotkey_config_change++; \ | |
2004 | } while (0); | |
2005 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2006 | mutex_unlock(&hotkey_thread_data_mutex); | |
2007 | ||
01e88f25 HMH |
2008 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2009 | ||
2010 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2011 | #define HOTKEY_CONFIG_CRITICAL_START |
2012 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2013 | |
2014 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2015 | ||
f74a27d4 HMH |
2016 | static struct mutex hotkey_mutex; |
2017 | ||
a713b4d7 HMH |
2018 | static enum { /* Reasons for waking up */ |
2019 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2020 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2021 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2022 | } hotkey_wakeup_reason; | |
2023 | ||
2024 | static int hotkey_autosleep_ack; | |
2025 | ||
0d922e3b HMH |
2026 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2027 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
0118c2d3 | 2028 | static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ |
0d922e3b HMH |
2029 | static u32 hotkey_reserved_mask; /* events better left disabled */ |
2030 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2031 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2032 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2033 | |
edf0e0e5 | 2034 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2035 | |
94954cc6 | 2036 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2037 | |
8b468c0c HMH |
2038 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2039 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2040 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2041 | |
6c231bd5 HMH |
2042 | /* HKEY.MHKG() return bits */ |
2043 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
dda3ec0a BB |
2044 | enum { |
2045 | TP_ACPI_MULTI_MODE_INVALID = 0, | |
2046 | TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0, | |
2047 | TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1, | |
2048 | TP_ACPI_MULTI_MODE_TABLET = 1 << 2, | |
2049 | TP_ACPI_MULTI_MODE_FLAT = 1 << 3, | |
2050 | TP_ACPI_MULTI_MODE_STAND = 1 << 4, | |
2051 | TP_ACPI_MULTI_MODE_TENT = 1 << 5, | |
2052 | TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6, | |
2053 | }; | |
2054 | ||
2055 | enum { | |
2056 | /* The following modes are considered tablet mode for the purpose of | |
2057 | * reporting the status to userspace. i.e. in all these modes it makes | |
2058 | * sense to disable the laptop input devices such as touchpad and | |
2059 | * keyboard. | |
2060 | */ | |
2061 | TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET | | |
2062 | TP_ACPI_MULTI_MODE_STAND | | |
2063 | TP_ACPI_MULTI_MODE_TENT | | |
2064 | TP_ACPI_MULTI_MODE_STAND_TENT, | |
2065 | }; | |
6c231bd5 | 2066 | |
19d337df | 2067 | static int hotkey_get_wlsw(void) |
74941a69 | 2068 | { |
19d337df JB |
2069 | int status; |
2070 | ||
2071 | if (!tp_features.hotkey_wlsw) | |
2072 | return -ENODEV; | |
2073 | ||
a73f3091 | 2074 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2075 | if (dbg_wlswemul) |
2076 | return (tpacpi_wlsw_emulstate) ? | |
2077 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2078 | #endif |
19d337df JB |
2079 | |
2080 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2081 | return -EIO; |
19d337df JB |
2082 | |
2083 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2084 | } |
2085 | ||
dda3ec0a BB |
2086 | static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode) |
2087 | { | |
2088 | int type = (s >> 16) & 0xffff; | |
2089 | int value = s & 0xffff; | |
2090 | int mode = TP_ACPI_MULTI_MODE_INVALID; | |
2091 | int valid_modes = 0; | |
2092 | ||
2093 | if (has_tablet_mode) | |
2094 | *has_tablet_mode = 0; | |
2095 | ||
2096 | switch (type) { | |
2097 | case 1: | |
2098 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2099 | TP_ACPI_MULTI_MODE_TABLET | | |
2100 | TP_ACPI_MULTI_MODE_STAND_TENT; | |
2101 | break; | |
2102 | case 2: | |
2103 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2104 | TP_ACPI_MULTI_MODE_FLAT | | |
2105 | TP_ACPI_MULTI_MODE_TABLET | | |
2106 | TP_ACPI_MULTI_MODE_STAND | | |
2107 | TP_ACPI_MULTI_MODE_TENT; | |
2108 | break; | |
2109 | case 3: | |
2110 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2111 | TP_ACPI_MULTI_MODE_FLAT; | |
2112 | break; | |
2113 | case 4: | |
dda3ec0a | 2114 | case 5: |
26befef0 BB |
2115 | /* In mode 4, FLAT is not specified as a valid mode. However, |
2116 | * it can be seen at least on the X1 Yoga 2nd Generation. | |
2117 | */ | |
dda3ec0a BB |
2118 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | |
2119 | TP_ACPI_MULTI_MODE_FLAT | | |
2120 | TP_ACPI_MULTI_MODE_TABLET | | |
2121 | TP_ACPI_MULTI_MODE_STAND | | |
2122 | TP_ACPI_MULTI_MODE_TENT; | |
2123 | break; | |
2124 | default: | |
2125 | pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n", | |
2126 | type, value, TPACPI_MAIL); | |
2127 | return 0; | |
2128 | } | |
2129 | ||
2130 | if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE)) | |
2131 | *has_tablet_mode = 1; | |
2132 | ||
2133 | switch (value) { | |
2134 | case 1: | |
2135 | mode = TP_ACPI_MULTI_MODE_LAPTOP; | |
2136 | break; | |
2137 | case 2: | |
2138 | mode = TP_ACPI_MULTI_MODE_FLAT; | |
2139 | break; | |
2140 | case 3: | |
2141 | mode = TP_ACPI_MULTI_MODE_TABLET; | |
2142 | break; | |
2143 | case 4: | |
2144 | if (type == 1) | |
2145 | mode = TP_ACPI_MULTI_MODE_STAND_TENT; | |
2146 | else | |
2147 | mode = TP_ACPI_MULTI_MODE_STAND; | |
2148 | break; | |
2149 | case 5: | |
2150 | mode = TP_ACPI_MULTI_MODE_TENT; | |
2151 | break; | |
2152 | default: | |
2153 | if (type == 5 && value == 0xffff) { | |
2154 | pr_warn("Multi mode status is undetected, assuming laptop\n"); | |
2155 | return 0; | |
2156 | } | |
2157 | } | |
2158 | ||
2159 | if (!(mode & valid_modes)) { | |
2160 | pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n", | |
2161 | value, type, TPACPI_MAIL); | |
2162 | return 0; | |
2163 | } | |
2164 | ||
2165 | return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE); | |
2166 | } | |
2167 | ||
6c231bd5 HMH |
2168 | static int hotkey_get_tablet_mode(int *status) |
2169 | { | |
2170 | int s; | |
2171 | ||
b03f4d49 L |
2172 | switch (tp_features.hotkey_tablet) { |
2173 | case TP_HOTKEY_TABLET_USES_MHKG: | |
2174 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2175 | return -EIO; | |
2176 | ||
2177 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); | |
2178 | break; | |
dda3ec0a BB |
2179 | case TP_HOTKEY_TABLET_USES_GMMS: |
2180 | if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0)) | |
b03f4d49 L |
2181 | return -EIO; |
2182 | ||
dda3ec0a | 2183 | *status = hotkey_gmms_get_tablet_mode(s, NULL); |
b03f4d49 L |
2184 | break; |
2185 | default: | |
2186 | break; | |
2187 | } | |
6c231bd5 | 2188 | |
cee47f5a | 2189 | return 0; |
6c231bd5 HMH |
2190 | } |
2191 | ||
b2c985e7 | 2192 | /* |
0d922e3b HMH |
2193 | * Reads current event mask from firmware, and updates |
2194 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2195 | * from hotkey_user_mask that are unavailable to be | |
2196 | * delivered (shadow requirement of the userspace ABI). | |
2197 | * | |
b2c985e7 HMH |
2198 | * Call with hotkey_mutex held |
2199 | */ | |
2200 | static int hotkey_mask_get(void) | |
2201 | { | |
2202 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2203 | u32 m = 0; |
2204 | ||
01e88f25 | 2205 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2206 | return -EIO; |
0d922e3b HMH |
2207 | |
2208 | hotkey_acpi_mask = m; | |
2209 | } else { | |
2210 | /* no mask support doesn't mean no event support... */ | |
2211 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2212 | } |
0d922e3b HMH |
2213 | |
2214 | /* sync userspace-visible mask */ | |
2215 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2216 | |
2217 | return 0; | |
2218 | } | |
2219 | ||
df6dd1b3 | 2220 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2221 | { |
2222 | /* log only what the user can fix... */ | |
2223 | const u32 wantedmask = hotkey_driver_mask & | |
2224 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2225 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2226 | ||
2227 | if (wantedmask) | |
0978e012 | 2228 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2229 | } |
2230 | ||
b2c985e7 | 2231 | /* |
0d922e3b HMH |
2232 | * Set the firmware mask when supported |
2233 | * | |
2234 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2235 | * | |
2236 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2237 | * | |
b2c985e7 HMH |
2238 | * Call with hotkey_mutex held |
2239 | */ | |
2240 | static int hotkey_mask_set(u32 mask) | |
2241 | { | |
2242 | int i; | |
2243 | int rc = 0; | |
2244 | ||
0d922e3b | 2245 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2246 | |
0d922e3b | 2247 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2248 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2249 | if (!acpi_evalf(hkey_handle, |
2250 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2251 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2252 | rc = -EIO; |
2253 | break; | |
b2c985e7 HMH |
2254 | } |
2255 | } | |
0d922e3b | 2256 | } |
b2c985e7 | 2257 | |
0d922e3b HMH |
2258 | /* |
2259 | * We *must* make an inconditional call to hotkey_mask_get to | |
2260 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2261 | * | |
2262 | * Take the opportunity to also log when we cannot _enable_ | |
2263 | * a given event. | |
2264 | */ | |
2265 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
5cac62ac | 2266 | pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n", |
0978e012 | 2267 | fwmask, hotkey_acpi_mask); |
b2c985e7 HMH |
2268 | } |
2269 | ||
6b30eb7d HMH |
2270 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2271 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2272 | |
2273 | return rc; | |
2274 | } | |
2275 | ||
2276 | /* | |
2277 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2278 | * | |
2279 | * Call with hotkey_mutex held | |
2280 | */ | |
2281 | static int hotkey_user_mask_set(const u32 mask) | |
2282 | { | |
2283 | int rc; | |
2284 | ||
2285 | /* Give people a chance to notice they are doing something that | |
2286 | * is bound to go boom on their users sooner or later */ | |
2287 | if (!tp_warned.hotkey_mask_ff && | |
2288 | (mask == 0xffff || mask == 0xffffff || | |
2289 | mask == 0xffffffff)) { | |
2290 | tp_warned.hotkey_mask_ff = 1; | |
5cac62ac AS |
2291 | pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n", |
2292 | mask); | |
2293 | pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n"); | |
0d922e3b HMH |
2294 | } |
2295 | ||
2296 | /* Try to enable what the user asked for, plus whatever we need. | |
2297 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2298 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2299 | ||
2300 | /* Enable the available bits in hotkey_user_mask */ | |
2301 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2302 | ||
b2c985e7 HMH |
2303 | return rc; |
2304 | } | |
2305 | ||
8b468c0c HMH |
2306 | /* |
2307 | * Sets the driver hotkey mask. | |
2308 | * | |
2309 | * Can be called even if the hotkey subdriver is inactive | |
2310 | */ | |
2311 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2312 | { | |
2313 | int rc; | |
2314 | ||
2315 | /* Do the right thing if hotkey_init has not been called yet */ | |
2316 | if (!tp_features.hotkey) { | |
2317 | hotkey_driver_mask = mask; | |
2318 | return 0; | |
2319 | } | |
2320 | ||
2321 | mutex_lock(&hotkey_mutex); | |
2322 | ||
2323 | HOTKEY_CONFIG_CRITICAL_START | |
2324 | hotkey_driver_mask = mask; | |
b684a363 | 2325 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2326 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2327 | #endif |
8b468c0c HMH |
2328 | HOTKEY_CONFIG_CRITICAL_END |
2329 | ||
2330 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2331 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2332 | hotkey_poll_setup(true); |
2333 | ||
8b468c0c HMH |
2334 | mutex_unlock(&hotkey_mutex); |
2335 | ||
2336 | return rc; | |
2337 | } | |
2338 | ||
b2c985e7 HMH |
2339 | static int hotkey_status_get(int *status) |
2340 | { | |
2341 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2342 | return -EIO; | |
2343 | ||
2344 | return 0; | |
2345 | } | |
2346 | ||
2586d566 | 2347 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2348 | { |
2586d566 | 2349 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2350 | return -EIO; |
2351 | ||
2352 | return 0; | |
2353 | } | |
2354 | ||
6c231bd5 | 2355 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2356 | { |
6c231bd5 | 2357 | int state; |
b3ec6f91 | 2358 | |
6c231bd5 HMH |
2359 | if (tp_features.hotkey_tablet && |
2360 | !hotkey_get_tablet_mode(&state)) { | |
2361 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2362 | |
6c231bd5 HMH |
2363 | input_report_switch(tpacpi_inputdev, |
2364 | SW_TABLET_MODE, !!state); | |
2365 | input_sync(tpacpi_inputdev); | |
2366 | ||
2367 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2368 | } | |
b3ec6f91 HMH |
2369 | } |
2370 | ||
0d922e3b HMH |
2371 | /* Do NOT call without validating scancode first */ |
2372 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2373 | { |
0d922e3b | 2374 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2375 | |
2376 | if (keycode != KEY_RESERVED) { | |
2377 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2378 | ||
5ffba7e6 | 2379 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2380 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2381 | input_sync(tpacpi_inputdev); |
2382 | ||
5ffba7e6 | 2383 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2384 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2385 | input_sync(tpacpi_inputdev); |
2386 | ||
2387 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2388 | } | |
2389 | } | |
2390 | ||
0d922e3b HMH |
2391 | /* Do NOT call without validating scancode first */ |
2392 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2393 | { | |
8b468c0c | 2394 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2395 | if (hotkey_user_mask & (1 << scancode)) |
2396 | tpacpi_input_send_key(scancode); | |
2397 | } | |
2398 | ||
01e88f25 HMH |
2399 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2400 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2401 | ||
0d922e3b | 2402 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2403 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2404 | { | |
0d922e3b | 2405 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2406 | } |
2407 | ||
0d922e3b | 2408 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2409 | { |
2410 | u8 d; | |
2411 | ||
2412 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2413 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2414 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2415 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2416 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2417 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2418 | } | |
c685e20d | 2419 | if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { |
01e88f25 HMH |
2420 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); |
2421 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2422 | } | |
2423 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2424 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2425 | n->displayexp_toggle = | |
2426 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2427 | } | |
2428 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2429 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2430 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2431 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2432 | n->brightness_toggle = | |
2433 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2434 | } | |
2435 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2436 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2437 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2438 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2439 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2440 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2441 | } | |
2442 | } | |
2443 | ||
2444 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2445 | do { \ |
2446 | if ((event_mask & (1 << __scancode)) && \ | |
2447 | oldn->__member != newn->__member) \ | |
2448 | tpacpi_hotkey_send_key(__scancode); \ | |
2449 | } while (0) | |
01e88f25 HMH |
2450 | |
2451 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2452 | do { \ |
2453 | if (event_mask & (1 << __scancode)) \ | |
2454 | tpacpi_hotkey_send_key(__scancode); \ | |
2455 | } while (0) | |
2456 | ||
2457 | static void issue_volchange(const unsigned int oldvol, | |
2458 | const unsigned int newvol, | |
2459 | const u32 event_mask) | |
2460 | { | |
2461 | unsigned int i = oldvol; | |
2462 | ||
2463 | while (i > newvol) { | |
2464 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2465 | i--; | |
5d756db9 | 2466 | } |
a4d44ba1 BW |
2467 | while (i < newvol) { |
2468 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2469 | i++; | |
2470 | } | |
2471 | } | |
5d756db9 | 2472 | |
a4d44ba1 BW |
2473 | static void issue_brightnesschange(const unsigned int oldbrt, |
2474 | const unsigned int newbrt, | |
2475 | const u32 event_mask) | |
2476 | { | |
2477 | unsigned int i = oldbrt; | |
28999022 | 2478 | |
a4d44ba1 BW |
2479 | while (i > newbrt) { |
2480 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2481 | i--; | |
28999022 | 2482 | } |
a4d44ba1 BW |
2483 | while (i < newbrt) { |
2484 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2485 | i++; | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2490 | struct tp_nvram_state *newn, | |
2491 | const u32 event_mask) | |
2492 | { | |
28999022 | 2493 | |
01e88f25 HMH |
2494 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2495 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2496 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2497 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2498 | ||
2499 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2500 | ||
2501 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2502 | ||
5d756db9 HMH |
2503 | /* |
2504 | * Handle volume | |
2505 | * | |
2506 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2507 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2508 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2509 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2510 | * - The act of unmuting issues volume up/down notification, |
2511 | * depending which key was used to unmute | |
2512 | * | |
2513 | * We are constrained to what the NVRAM can tell us, which is not much | |
2514 | * and certainly not enough if more than one volume hotkey was pressed | |
2515 | * since the last poll cycle. | |
2516 | * | |
2517 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2518 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2519 | */ | |
2520 | if (newn->mute) { | |
2521 | /* muted */ | |
2522 | if (!oldn->mute || | |
2523 | oldn->volume_toggle != newn->volume_toggle || | |
2524 | oldn->volume_level != newn->volume_level) { | |
2525 | /* recently muted, or repeated mute keypress, or | |
2526 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2527 | issue_volchange(oldn->volume_level, newn->volume_level, |
2528 | event_mask); | |
01e88f25 HMH |
2529 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2530 | } | |
5d756db9 HMH |
2531 | } else { |
2532 | /* unmute */ | |
2533 | if (oldn->mute) { | |
2534 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2535 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2536 | } |
2537 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2538 | issue_volchange(oldn->volume_level, newn->volume_level, |
2539 | event_mask); | |
5d756db9 HMH |
2540 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2541 | /* repeated vol up/down keypress at end of scale ? */ | |
2542 | if (newn->volume_level == 0) | |
01e88f25 | 2543 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2544 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2545 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2546 | } |
2547 | } | |
2548 | ||
2549 | /* handle brightness */ | |
28999022 HMH |
2550 | if (oldn->brightness_level != newn->brightness_level) { |
2551 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2552 | newn->brightness_level, event_mask); |
28999022 HMH |
2553 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2554 | /* repeated key presses that didn't change state */ | |
2555 | if (newn->brightness_level == 0) | |
01e88f25 | 2556 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2557 | else if (newn->brightness_level >= bright_maxlvl |
2558 | && !tp_features.bright_unkfw) | |
2559 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2560 | } |
01e88f25 HMH |
2561 | |
2562 | #undef TPACPI_COMPARE_KEY | |
2563 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2564 | } |
01e88f25 | 2565 | |
0d922e3b HMH |
2566 | /* |
2567 | * Polling driver | |
2568 | * | |
2569 | * We track all events in hotkey_source_mask all the time, since | |
2570 | * most of them are edge-based. We only issue those requested by | |
2571 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2572 | */ | |
01e88f25 HMH |
2573 | static int hotkey_kthread(void *data) |
2574 | { | |
5f38b06d | 2575 | struct tp_nvram_state s[2] = { 0 }; |
0d922e3b | 2576 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2577 | unsigned int si, so; |
2578 | unsigned long t; | |
8a32c441 | 2579 | unsigned int change_detector; |
db25f16d | 2580 | unsigned int poll_freq; |
8a32c441 | 2581 | bool was_frozen; |
01e88f25 | 2582 | |
01e88f25 HMH |
2583 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2584 | goto exit; | |
2585 | ||
2586 | set_freezable(); | |
2587 | ||
2588 | so = 0; | |
2589 | si = 1; | |
2590 | t = 0; | |
2591 | ||
2592 | /* Initial state for compares */ | |
2593 | mutex_lock(&hotkey_thread_data_mutex); | |
2594 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2595 | poll_mask = hotkey_source_mask; |
2596 | event_mask = hotkey_source_mask & | |
2597 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2598 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2599 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2600 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2601 | |
db25f16d HMH |
2602 | while (!kthread_should_stop()) { |
2603 | if (t == 0) { | |
2604 | if (likely(poll_freq)) | |
2605 | t = 1000/poll_freq; | |
2606 | else | |
2607 | t = 100; /* should never happen... */ | |
2608 | } | |
01e88f25 | 2609 | t = msleep_interruptible(t); |
8a32c441 | 2610 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2611 | break; |
8a32c441 TH |
2612 | |
2613 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2614 | continue; |
2615 | ||
2616 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2617 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2618 | /* forget old state on thaw or config change */ |
2619 | si = so; | |
2620 | t = 0; | |
2621 | change_detector = hotkey_config_change; | |
2622 | } | |
0d922e3b HMH |
2623 | poll_mask = hotkey_source_mask; |
2624 | event_mask = hotkey_source_mask & | |
2625 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2626 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2627 | mutex_unlock(&hotkey_thread_data_mutex); |
2628 | ||
0d922e3b HMH |
2629 | if (likely(poll_mask)) { |
2630 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2631 | if (likely(si != so)) { |
2632 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2633 | event_mask); |
01e88f25 HMH |
2634 | } |
2635 | } | |
2636 | ||
2637 | so = si; | |
2638 | si ^= 1; | |
2639 | } | |
2640 | ||
2641 | exit: | |
01e88f25 HMH |
2642 | return 0; |
2643 | } | |
2644 | ||
db25f16d | 2645 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2646 | static void hotkey_poll_stop_sync(void) |
2647 | { | |
2648 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2649 | kthread_stop(tpacpi_hotkey_task); |
2650 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2651 | } |
2652 | } | |
2653 | ||
2654 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2655 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2656 | { |
0d922e3b HMH |
2657 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2658 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2659 | |
0d922e3b HMH |
2660 | if (hotkey_poll_freq > 0 && |
2661 | (poll_driver_mask || | |
2662 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2663 | if (!tpacpi_hotkey_task) { |
2664 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2665 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2666 | if (IS_ERR(tpacpi_hotkey_task)) { |
2667 | tpacpi_hotkey_task = NULL; | |
5cac62ac | 2668 | pr_err("could not create kernel thread for hotkey polling\n"); |
01e88f25 HMH |
2669 | } |
2670 | } | |
2671 | } else { | |
2672 | hotkey_poll_stop_sync(); | |
0d922e3b | 2673 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2674 | hotkey_poll_freq == 0) { |
5cac62ac | 2675 | pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n", |
0978e012 | 2676 | poll_user_mask, poll_driver_mask); |
01e88f25 HMH |
2677 | } |
2678 | } | |
2679 | } | |
2680 | ||
7f0cf712 | 2681 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2682 | { |
2683 | mutex_lock(&hotkey_mutex); | |
2684 | hotkey_poll_setup(may_warn); | |
2685 | mutex_unlock(&hotkey_mutex); | |
2686 | } | |
2687 | ||
db25f16d HMH |
2688 | /* call with hotkey_mutex held */ |
2689 | static void hotkey_poll_set_freq(unsigned int freq) | |
2690 | { | |
2691 | if (!freq) | |
2692 | hotkey_poll_stop_sync(); | |
2693 | ||
db25f16d | 2694 | hotkey_poll_freq = freq; |
db25f16d HMH |
2695 | } |
2696 | ||
1bc6b9cd HMH |
2697 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2698 | ||
7f0cf712 HMH |
2699 | static void hotkey_poll_setup(const bool __unused) |
2700 | { | |
2701 | } | |
2702 | ||
2703 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2704 | { |
2705 | } | |
2706 | ||
2707 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2708 | ||
01e88f25 HMH |
2709 | static int hotkey_inputdev_open(struct input_dev *dev) |
2710 | { | |
2711 | switch (tpacpi_lifecycle) { | |
2712 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2713 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2714 | hotkey_poll_setup_safe(false); |
01e88f25 | 2715 | return 0; |
b589ea4c HMH |
2716 | case TPACPI_LIFE_EXITING: |
2717 | return -EBUSY; | |
01e88f25 HMH |
2718 | } |
2719 | ||
2720 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2721 | BUG(); | |
2722 | return -EBUSY; | |
2723 | } | |
2724 | ||
2725 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2726 | { | |
2727 | /* disable hotkey polling when possible */ | |
b589ea4c | 2728 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2729 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2730 | hotkey_poll_setup_safe(false); |
01e88f25 | 2731 | } |
01e88f25 | 2732 | |
a0416420 HMH |
2733 | /* sysfs hotkey enable ------------------------------------------------- */ |
2734 | static ssize_t hotkey_enable_show(struct device *dev, | |
2735 | struct device_attribute *attr, | |
2736 | char *buf) | |
2737 | { | |
ae92bd17 | 2738 | int res, status; |
a0416420 | 2739 | |
2586d566 HMH |
2740 | printk_deprecated_attribute("hotkey_enable", |
2741 | "Hotkey reporting is always enabled"); | |
2742 | ||
b2c985e7 | 2743 | res = hotkey_status_get(&status); |
a0416420 HMH |
2744 | if (res) |
2745 | return res; | |
2746 | ||
2747 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2748 | } | |
2749 | ||
2750 | static ssize_t hotkey_enable_store(struct device *dev, | |
2751 | struct device_attribute *attr, | |
2752 | const char *buf, size_t count) | |
2753 | { | |
2754 | unsigned long t; | |
2586d566 HMH |
2755 | |
2756 | printk_deprecated_attribute("hotkey_enable", | |
2757 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2758 | |
2759 | if (parse_strtoul(buf, 1, &t)) | |
2760 | return -EINVAL; | |
2761 | ||
2586d566 HMH |
2762 | if (t == 0) |
2763 | return -EPERM; | |
a0416420 | 2764 | |
2586d566 | 2765 | return count; |
a0416420 HMH |
2766 | } |
2767 | ||
b4dd04ac | 2768 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2769 | |
2770 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2771 | static ssize_t hotkey_mask_show(struct device *dev, | |
2772 | struct device_attribute *attr, | |
2773 | char *buf) | |
2774 | { | |
0d922e3b | 2775 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2776 | } |
2777 | ||
2778 | static ssize_t hotkey_mask_store(struct device *dev, | |
2779 | struct device_attribute *attr, | |
2780 | const char *buf, size_t count) | |
2781 | { | |
2782 | unsigned long t; | |
b2c985e7 | 2783 | int res; |
a0416420 | 2784 | |
ae92bd17 | 2785 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2786 | return -EINVAL; |
2787 | ||
7646ea88 | 2788 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2789 | return -ERESTARTSYS; |
2790 | ||
0d922e3b | 2791 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2792 | |
2793 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2794 | hotkey_poll_setup(true); |
01e88f25 HMH |
2795 | #endif |
2796 | ||
b2c985e7 | 2797 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2798 | |
56e2c200 HMH |
2799 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2800 | ||
a0416420 HMH |
2801 | return (res) ? res : count; |
2802 | } | |
2803 | ||
b4dd04ac | 2804 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2805 | |
2806 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2807 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2808 | struct device_attribute *attr, | |
2809 | char *buf) | |
2810 | { | |
2586d566 | 2811 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2812 | } |
2813 | ||
b4dd04ac | 2814 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2815 | |
2816 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2817 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2818 | struct device_attribute *attr, | |
2819 | char *buf) | |
2820 | { | |
06777be6 HMH |
2821 | printk_deprecated_attribute("hotkey_bios_mask", |
2822 | "This attribute is useless."); | |
ae92bd17 | 2823 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2824 | } |
2825 | ||
b4dd04ac | 2826 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2827 | |
9b010de5 HMH |
2828 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2829 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2830 | struct device_attribute *attr, | |
2831 | char *buf) | |
2832 | { | |
01e88f25 HMH |
2833 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2834 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2835 | } |
2836 | ||
b4dd04ac | 2837 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 | 2838 | |
0118c2d3 DW |
2839 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2840 | static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, | |
2841 | struct device_attribute *attr, | |
2842 | char *buf) | |
2843 | { | |
2844 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
2845 | hotkey_adaptive_all_mask | hotkey_source_mask); | |
2846 | } | |
2847 | ||
2848 | static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); | |
2849 | ||
9b010de5 HMH |
2850 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
2851 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2852 | struct device_attribute *attr, | |
2853 | char *buf) | |
2854 | { | |
2855 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2856 | (hotkey_all_mask | hotkey_source_mask) |
2857 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2858 | } |
2859 | ||
b4dd04ac | 2860 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2861 | |
01e88f25 HMH |
2862 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2863 | ||
2864 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2865 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2866 | struct device_attribute *attr, | |
2867 | char *buf) | |
2868 | { | |
2869 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2870 | } | |
2871 | ||
2872 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2873 | struct device_attribute *attr, | |
2874 | const char *buf, size_t count) | |
2875 | { | |
2876 | unsigned long t; | |
0d922e3b HMH |
2877 | u32 r_ev; |
2878 | int rc; | |
01e88f25 HMH |
2879 | |
2880 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2881 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2882 | return -EINVAL; | |
2883 | ||
7646ea88 | 2884 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2885 | return -ERESTARTSYS; |
2886 | ||
2887 | HOTKEY_CONFIG_CRITICAL_START | |
2888 | hotkey_source_mask = t; | |
2889 | HOTKEY_CONFIG_CRITICAL_END | |
2890 | ||
0d922e3b HMH |
2891 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2892 | ~hotkey_source_mask); | |
db25f16d | 2893 | hotkey_poll_setup(true); |
0d922e3b HMH |
2894 | |
2895 | /* check if events needed by the driver got disabled */ | |
2896 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2897 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2898 | |
2899 | mutex_unlock(&hotkey_mutex); | |
2900 | ||
0d922e3b | 2901 | if (rc < 0) |
5cac62ac | 2902 | pr_err("hotkey_source_mask: failed to update the firmware event mask!\n"); |
0d922e3b HMH |
2903 | |
2904 | if (r_ev) | |
5cac62ac | 2905 | pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n", |
0978e012 | 2906 | r_ev); |
0d922e3b | 2907 | |
56e2c200 HMH |
2908 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2909 | ||
0d922e3b | 2910 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2911 | } |
2912 | ||
b4dd04ac | 2913 | static DEVICE_ATTR_RW(hotkey_source_mask); |
01e88f25 HMH |
2914 | |
2915 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2916 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2917 | struct device_attribute *attr, | |
2918 | char *buf) | |
2919 | { | |
2920 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2921 | } | |
2922 | ||
2923 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2924 | struct device_attribute *attr, | |
2925 | const char *buf, size_t count) | |
2926 | { | |
2927 | unsigned long t; | |
2928 | ||
2929 | if (parse_strtoul(buf, 25, &t)) | |
2930 | return -EINVAL; | |
2931 | ||
7646ea88 | 2932 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2933 | return -ERESTARTSYS; |
2934 | ||
db25f16d HMH |
2935 | hotkey_poll_set_freq(t); |
2936 | hotkey_poll_setup(true); | |
01e88f25 | 2937 | |
01e88f25 HMH |
2938 | mutex_unlock(&hotkey_mutex); |
2939 | ||
56e2c200 HMH |
2940 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2941 | ||
01e88f25 HMH |
2942 | return count; |
2943 | } | |
2944 | ||
b4dd04ac | 2945 | static DEVICE_ATTR_RW(hotkey_poll_freq); |
01e88f25 HMH |
2946 | |
2947 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2948 | ||
50ebec09 | 2949 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2950 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2951 | struct device_attribute *attr, | |
2952 | char *buf) | |
2953 | { | |
19d337df JB |
2954 | int res; |
2955 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2956 | if (res < 0) |
2957 | return res; | |
2958 | ||
19d337df JB |
2959 | /* Opportunistic update */ |
2960 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2961 | ||
2962 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2963 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2964 | } |
2965 | ||
b4dd04ac | 2966 | static DEVICE_ATTR_RO(hotkey_radio_sw); |
74941a69 | 2967 | |
50ebec09 HMH |
2968 | static void hotkey_radio_sw_notify_change(void) |
2969 | { | |
2970 | if (tp_features.hotkey_wlsw) | |
2971 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2972 | "hotkey_radio_sw"); | |
2973 | } | |
2974 | ||
6c231bd5 HMH |
2975 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2976 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2977 | struct device_attribute *attr, | |
2978 | char *buf) | |
2979 | { | |
2980 | int res, s; | |
2981 | res = hotkey_get_tablet_mode(&s); | |
2982 | if (res < 0) | |
2983 | return res; | |
2984 | ||
2985 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2986 | } | |
2987 | ||
b4dd04ac | 2988 | static DEVICE_ATTR_RO(hotkey_tablet_mode); |
6c231bd5 HMH |
2989 | |
2990 | static void hotkey_tablet_mode_notify_change(void) | |
2991 | { | |
2992 | if (tp_features.hotkey_tablet) | |
2993 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2994 | "hotkey_tablet_mode"); | |
2995 | } | |
2996 | ||
50ebec09 | 2997 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2998 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2999 | struct device_attribute *attr, | |
3000 | char *buf) | |
3001 | { | |
3002 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
3003 | } | |
3004 | ||
5fb73bc2 | 3005 | static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
a713b4d7 | 3006 | |
1d5a2b54 | 3007 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 3008 | { |
0d922e3b HMH |
3009 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3010 | "wakeup_reason"); | |
50ebec09 HMH |
3011 | } |
3012 | ||
3013 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
3014 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
3015 | struct device_attribute *attr, | |
3016 | char *buf) | |
3017 | { | |
3018 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
3019 | } | |
3020 | ||
5fb73bc2 BM |
3021 | static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, |
3022 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
a713b4d7 | 3023 | |
1d5a2b54 | 3024 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 3025 | { |
0d922e3b HMH |
3026 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3027 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
3028 | } |
3029 | ||
b790ceeb BN |
3030 | /* sysfs adaptive kbd mode --------------------------------------------- */ |
3031 | ||
3032 | static int adaptive_keyboard_get_mode(void); | |
3033 | static int adaptive_keyboard_set_mode(int new_mode); | |
3034 | ||
3035 | enum ADAPTIVE_KEY_MODE { | |
3036 | HOME_MODE, | |
3037 | WEB_BROWSER_MODE, | |
3038 | WEB_CONFERENCE_MODE, | |
3039 | FUNCTION_MODE, | |
3040 | LAYFLAT_MODE | |
3041 | }; | |
3042 | ||
3043 | static ssize_t adaptive_kbd_mode_show(struct device *dev, | |
3044 | struct device_attribute *attr, | |
3045 | char *buf) | |
3046 | { | |
abf9dc0d | 3047 | int current_mode; |
b790ceeb BN |
3048 | |
3049 | current_mode = adaptive_keyboard_get_mode(); | |
3050 | if (current_mode < 0) | |
3051 | return current_mode; | |
3052 | ||
3053 | return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); | |
3054 | } | |
3055 | ||
3056 | static ssize_t adaptive_kbd_mode_store(struct device *dev, | |
3057 | struct device_attribute *attr, | |
3058 | const char *buf, size_t count) | |
3059 | { | |
3060 | unsigned long t; | |
3061 | int res; | |
3062 | ||
3063 | if (parse_strtoul(buf, LAYFLAT_MODE, &t)) | |
3064 | return -EINVAL; | |
3065 | ||
3066 | res = adaptive_keyboard_set_mode(t); | |
3067 | return (res < 0) ? res : count; | |
3068 | } | |
3069 | ||
3070 | static DEVICE_ATTR_RW(adaptive_kbd_mode); | |
3071 | ||
3072 | static struct attribute *adaptive_kbd_attributes[] = { | |
3073 | &dev_attr_adaptive_kbd_mode.attr, | |
3074 | NULL | |
3075 | }; | |
3076 | ||
3077 | static const struct attribute_group adaptive_kbd_attr_group = { | |
3078 | .attrs = adaptive_kbd_attributes, | |
3079 | }; | |
3080 | ||
a0416420 HMH |
3081 | /* --------------------------------------------------------------------- */ |
3082 | ||
ff80f137 HMH |
3083 | static struct attribute *hotkey_attributes[] __initdata = { |
3084 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 3085 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 3086 | &dev_attr_hotkey_bios_mask.attr, |
5fb73bc2 BM |
3087 | &dev_attr_wakeup_reason.attr, |
3088 | &dev_attr_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
3089 | &dev_attr_hotkey_mask.attr, |
3090 | &dev_attr_hotkey_all_mask.attr, | |
0118c2d3 | 3091 | &dev_attr_hotkey_adaptive_all_mask.attr, |
01e88f25 | 3092 | &dev_attr_hotkey_recommended_mask.attr, |
0d922e3b | 3093 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3094 | &dev_attr_hotkey_source_mask.attr, |
3095 | &dev_attr_hotkey_poll_freq.attr, | |
3096 | #endif | |
ff80f137 HMH |
3097 | }; |
3098 | ||
19d337df JB |
3099 | /* |
3100 | * Sync both the hw and sw blocking state of all switches | |
3101 | */ | |
733e27c1 HMH |
3102 | static void tpacpi_send_radiosw_update(void) |
3103 | { | |
3104 | int wlsw; | |
3105 | ||
19d337df JB |
3106 | /* |
3107 | * We must sync all rfkill controllers *before* issuing any | |
3108 | * rfkill input events, or we will race the rfkill core input | |
3109 | * handler. | |
3110 | * | |
c8440336 | 3111 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
3112 | * for the above. |
3113 | * | |
3114 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
3115 | */ | |
3116 | ||
3117 | wlsw = hotkey_get_wlsw(); | |
3118 | ||
3119 | /* Sync hw blocking state first if it is hw-blocked */ | |
3120 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
3121 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 3122 | |
19d337df JB |
3123 | /* Sync hw blocking state last if it is hw-unblocked */ |
3124 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3125 | tpacpi_rfk_update_hwblock_state(false); | |
3126 | ||
3127 | /* Issue rfkill input event for WLSW switch */ | |
3128 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3129 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3130 | ||
3131 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3132 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3133 | input_sync(tpacpi_inputdev); |
3134 | ||
3135 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3136 | } | |
19d337df JB |
3137 | |
3138 | /* | |
3139 | * this can be unconditional, as we will poll state again | |
3140 | * if userspace uses the notify to read data | |
3141 | */ | |
733e27c1 HMH |
3142 | hotkey_radio_sw_notify_change(); |
3143 | } | |
3144 | ||
9c0a76e1 HMH |
3145 | static void hotkey_exit(void) |
3146 | { | |
3147 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3148 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3149 | hotkey_poll_stop_sync(); |
db25f16d | 3150 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3151 | #endif |
3152 | ||
3153 | if (hotkey_dev_attributes) | |
3154 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3155 | ||
4be73005 | 3156 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3157 | "restoring original HKEY status and mask\n"); |
3158 | /* yes, there is a bitwise or below, we want the | |
3159 | * functions to be called even if one of them fail */ | |
3160 | if (((tp_features.hotkey_mask && | |
3161 | hotkey_mask_set(hotkey_orig_mask)) | | |
3162 | hotkey_status_set(false)) != 0) | |
5cac62ac | 3163 | pr_err("failed to restore hot key mask to BIOS defaults\n"); |
9c0a76e1 HMH |
3164 | } |
3165 | ||
de4c8cc7 HMH |
3166 | static void __init hotkey_unmap(const unsigned int scancode) |
3167 | { | |
3168 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3169 | clear_bit(hotkey_keycode_map[scancode], | |
3170 | tpacpi_inputdev->keybit); | |
3171 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3172 | } | |
3173 | } | |
3174 | ||
0d922e3b HMH |
3175 | /* |
3176 | * HKEY quirks: | |
3177 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3178 | */ | |
3179 | ||
3180 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3181 | ||
3182 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3183 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3184 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3185 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3186 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3187 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3188 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3189 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3190 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3191 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3192 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3193 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3194 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3195 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3196 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3197 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3198 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3199 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3200 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3201 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3202 | }; | |
3203 | ||
fc6e7568 HMH |
3204 | typedef u16 tpacpi_keymap_entry_t; |
3205 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3206 | |
b3180028 L |
3207 | static int hotkey_init_tablet_mode(void) |
3208 | { | |
cb2bf251 DH |
3209 | int in_tablet_mode = 0, res; |
3210 | char *type = NULL; | |
b3180028 | 3211 | |
dda3ec0a BB |
3212 | if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) { |
3213 | int has_tablet_mode; | |
3214 | ||
3215 | in_tablet_mode = hotkey_gmms_get_tablet_mode(res, | |
3216 | &has_tablet_mode); | |
685489a3 HG |
3217 | /* |
3218 | * The Yoga 11e series has 2 accelerometers described by a | |
3219 | * BOSC0200 ACPI node. This setup relies on a Windows service | |
3220 | * which calls special ACPI methods on this node to report | |
3221 | * the laptop/tent/tablet mode to the EC. The bmc150 iio driver | |
3222 | * does not support this, so skip the hotkey on these models. | |
3223 | */ | |
153cca9c | 3224 | if (has_tablet_mode && !dual_accel_detect()) |
dda3ec0a BB |
3225 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS; |
3226 | type = "GMMS"; | |
3227 | } else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) { | |
b03f4d49 | 3228 | /* For X41t, X60t, X61t Tablets... */ |
b3180028 L |
3229 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG; |
3230 | in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK); | |
3231 | type = "MHKG"; | |
3232 | } | |
3233 | ||
3234 | if (!tp_features.hotkey_tablet) | |
3235 | return 0; | |
3236 | ||
3237 | pr_info("Tablet mode switch found (type: %s), currently in %s mode\n", | |
3238 | type, in_tablet_mode ? "tablet" : "laptop"); | |
3239 | ||
3240 | res = add_to_attr_set(hotkey_dev_attributes, | |
3241 | &dev_attr_hotkey_tablet_mode.attr); | |
3242 | if (res) | |
3243 | return -1; | |
3244 | ||
3245 | return in_tablet_mode; | |
3246 | } | |
3247 | ||
a5763f22 | 3248 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3249 | { |
0f089147 HMH |
3250 | /* Requirements for changing the default keymaps: |
3251 | * | |
3252 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3253 | * good reasons. Do not change them unless you have deep | |
3254 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3255 | * the various ThinkPad models. The driver behaves | |
3256 | * differently for KEY_RESERVED: such keys have their | |
3257 | * hot key mask *unset* in mask_recommended, and also | |
3258 | * in the initial hot key mask programmed into the | |
3259 | * firmware at driver load time, which means the firm- | |
3260 | * ware may react very differently if you change them to | |
3261 | * something else; | |
3262 | * | |
3263 | * 2. You must be subscribed to the linux-thinkpad and | |
3264 | * ibm-acpi-devel mailing lists, and you should read the | |
3265 | * list archives since 2007 if you want to change the | |
3266 | * keymaps. This requirement exists so that you will | |
3267 | * know the past history of problems with the thinkpad- | |
3268 | * acpi driver keymaps, and also that you will be | |
3269 | * listening to any bug reports; | |
3270 | * | |
3271 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3272 | * for merging, *ever*. Send them to the linux-acpi | |
3273 | * mailinglist for comments. Merging is to be done only | |
3274 | * through acpi-test and the ACPI maintainer. | |
3275 | * | |
3276 | * If the above is too much to ask, don't change the keymap. | |
3277 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3278 | */ | |
d1e14dca HMH |
3279 | |
3280 | enum keymap_index { | |
3281 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3282 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3283 | }; | |
3284 | ||
3285 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3286 | /* Generic keymap for IBM ThinkPads */ | |
3287 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3288 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3289 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3290 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3291 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3292 | |
3293 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3294 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3295 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3296 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3297 | |
0d922e3b | 3298 | /* brightness: firmware always reacts to them */ |
e927c08d | 3299 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3300 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3301 | |
3302 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3303 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3304 | |
edf0e0e5 HMH |
3305 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3306 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3307 | |
3308 | /* Volume: firmware always react to it and reprograms | |
3309 | * the built-in *extra* mixer. Never map it to control | |
3310 | * another mixer by default. */ | |
e927c08d HMH |
3311 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3312 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3313 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3314 | |
edf0e0e5 | 3315 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3316 | |
edf0e0e5 HMH |
3317 | /* (assignments unknown, please report if found) */ |
3318 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3319 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
6a68d855 BN |
3320 | |
3321 | /* No assignments, only used for Adaptive keyboards. */ | |
3322 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3323 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3324 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3325 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3326 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
696c6523 CK |
3327 | |
3328 | /* No assignment, used for newer Lenovo models */ | |
3329 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3330 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3331 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3332 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3333 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3334 | KEY_UNKNOWN, KEY_UNKNOWN | |
3335 | ||
d1e14dca HMH |
3336 | }, |
3337 | ||
3338 | /* Generic keymap for Lenovo ThinkPads */ | |
3339 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3340 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3341 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3342 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3343 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3344 | |
3345 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3346 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3347 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3348 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3349 | |
de4c8cc7 HMH |
3350 | /* These should be enabled --only-- when ACPI video |
3351 | * is disabled (i.e. in "vendor" mode), and are handled | |
3352 | * in a special way by the init code */ | |
3353 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3354 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3355 | |
edf0e0e5 | 3356 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3357 | |
edf0e0e5 HMH |
3358 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3359 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3360 | |
3361 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3362 | * react to it and reprograms the built-in *extra* mixer. | |
3363 | * Never map it to control another mixer by default. | |
3364 | * | |
3365 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3366 | * these over the regular keyboard, so these are no-ops, | |
3367 | * but there are still weird bugs re. MUTE, so do not | |
3368 | * change unless you get test reports from all Lenovo | |
3369 | * models. May cause the BIOS to interfere with the | |
3370 | * HDA mixer. | |
3371 | */ | |
e927c08d HMH |
3372 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3373 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3374 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3375 | |
edf0e0e5 | 3376 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3377 | |
33009557 AL |
3378 | /* (assignments unknown, please report if found) */ |
3379 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3380 | ||
3381 | /* | |
3382 | * The mic mute button only sends 0x1a. It does not | |
3383 | * automatically mute the mic or change the mute light. | |
3384 | */ | |
3385 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3386 | ||
edf0e0e5 | 3387 | /* (assignments unknown, please report if found) */ |
33009557 | 3388 | KEY_UNKNOWN, |
8b9dd4fa HG |
3389 | |
3390 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3391 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
6a68d855 BN |
3392 | |
3393 | /* | |
3394 | * These are the adaptive keyboard keycodes for Carbon X1 2014. | |
3395 | * The first item in this list is the Mute button which is | |
3396 | * emitted with 0x103 through | |
3397 | * adaptive_keyboard_hotkey_notify_hotkey() when the sound | |
3398 | * symbol is held. | |
3399 | * We'll need to offset those by 0x20. | |
3400 | */ | |
3401 | KEY_RESERVED, /* Mute held, 0x103 */ | |
3402 | KEY_BRIGHTNESS_MIN, /* Backlight off */ | |
3403 | KEY_RESERVED, /* Clipping tool */ | |
3404 | KEY_RESERVED, /* Cloud */ | |
3405 | KEY_RESERVED, | |
3406 | KEY_VOICECOMMAND, /* Voice */ | |
3407 | KEY_RESERVED, | |
3408 | KEY_RESERVED, /* Gestures */ | |
3409 | KEY_RESERVED, | |
3410 | KEY_RESERVED, | |
3411 | KEY_RESERVED, | |
3412 | KEY_CONFIG, /* Settings */ | |
3413 | KEY_RESERVED, /* New tab */ | |
3414 | KEY_REFRESH, /* Reload */ | |
3415 | KEY_BACK, /* Back */ | |
3416 | KEY_RESERVED, /* Microphone down */ | |
3417 | KEY_RESERVED, /* Microphone up */ | |
3418 | KEY_RESERVED, /* Microphone cancellation */ | |
3419 | KEY_RESERVED, /* Camera mode */ | |
3420 | KEY_RESERVED, /* Rotate display, 0x116 */ | |
696c6523 CK |
3421 | |
3422 | /* | |
3423 | * These are found in 2017 models (e.g. T470s, X270). | |
3424 | * The lowest known value is 0x311, which according to | |
3425 | * the manual should launch a user defined favorite | |
3426 | * application. | |
3427 | * | |
3428 | * The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
3429 | * corresponding to 0x34. | |
3430 | */ | |
3431 | ||
3432 | /* (assignments unknown, please report if found) */ | |
3433 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3434 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3435 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3436 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3437 | KEY_UNKNOWN, | |
3438 | ||
7ed7748d | 3439 | KEY_BOOKMARKS, /* Favorite app, 0x311 */ |
e2c8c4ec | 3440 | KEY_SELECTIVE_SCREENSHOT, /* Clipping tool */ |
7ed7748d HG |
3441 | KEY_CALC, /* Calculator (above numpad, P52) */ |
3442 | KEY_BLUETOOTH, /* Bluetooth */ | |
3443 | KEY_KEYBOARD, /* Keyboard, 0x315 */ | |
3444 | KEY_FN_RIGHT_SHIFT, /* Fn + right Shift */ | |
3445 | KEY_NOTIFICATION_CENTER, /* Notification Center */ | |
3446 | KEY_PICKUP_PHONE, /* Answer incoming call */ | |
3447 | KEY_HANGUP_PHONE, /* Decline incoming call */ | |
d1e14dca | 3448 | }, |
edf0e0e5 HMH |
3449 | }; |
3450 | ||
d1e14dca HMH |
3451 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3452 | /* Generic maps (fallback) */ | |
3453 | { | |
3454 | .vendor = PCI_VENDOR_ID_IBM, | |
3455 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3456 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3457 | }, | |
3458 | { | |
3459 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3460 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3461 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3462 | }, | |
3463 | }; | |
3464 | ||
3465 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3466 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3467 | |
6a38abbf | 3468 | int res, i; |
74941a69 | 3469 | int status; |
1b6521dc | 3470 | int hkeyv; |
d89a727a HMH |
3471 | bool radiosw_state = false; |
3472 | bool tabletsw_state = false; | |
b86c4722 | 3473 | |
0d922e3b | 3474 | unsigned long quirks; |
d1e14dca | 3475 | unsigned long keymap_id; |
0d922e3b | 3476 | |
56e2c200 HMH |
3477 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3478 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3479 | |
6a38abbf | 3480 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3481 | BUG_ON(tpacpi_inputdev->open != NULL || |
3482 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3483 | |
e0c7dfe7 | 3484 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3485 | mutex_init(&hotkey_mutex); |
5fba344c | 3486 | |
01e88f25 | 3487 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3488 | mutex_init(&hotkey_thread_data_mutex); |
3489 | #endif | |
3490 | ||
56b6aeb0 | 3491 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3492 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3493 | |
56e2c200 HMH |
3494 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3495 | "hotkeys are %s\n", | |
d8fd94d9 | 3496 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3497 | |
9c0a76e1 HMH |
3498 | if (!tp_features.hotkey) |
3499 | return 1; | |
a0416420 | 3500 | |
0d922e3b HMH |
3501 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3502 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3503 | ||
d64c81c4 HMH |
3504 | tpacpi_disable_brightness_delay(); |
3505 | ||
0d922e3b HMH |
3506 | /* MUST have enough space for all attributes to be added to |
3507 | * hotkey_dev_attributes */ | |
3508 | hotkey_dev_attributes = create_attr_set( | |
3509 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3510 | NULL); | |
9c0a76e1 HMH |
3511 | if (!hotkey_dev_attributes) |
3512 | return -ENOMEM; | |
3513 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3514 | hotkey_attributes, | |
3515 | ARRAY_SIZE(hotkey_attributes)); | |
3516 | if (res) | |
3517 | goto err_exit; | |
3518 | ||
0d922e3b | 3519 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3520 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3521 | for HKEY interface version 0x100 */ | |
3522 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
0118c2d3 DW |
3523 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3524 | "firmware HKEY interface version: 0x%x\n", | |
3525 | hkeyv); | |
3526 | ||
3527 | switch (hkeyv >> 8) { | |
3528 | case 1: | |
9c0a76e1 HMH |
3529 | /* |
3530 | * MHKV 0x100 in A31, R40, R40e, | |
3531 | * T4x, X31, and later | |
3532 | */ | |
0d922e3b HMH |
3533 | |
3534 | /* Paranoia check AND init hotkey_all_mask */ | |
3535 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3536 | "MHKA", "qd")) { | |
0118c2d3 DW |
3537 | pr_err("missing MHKA handler, please report this to %s\n", |
3538 | TPACPI_MAIL); | |
3539 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3540 | hotkey_all_mask = 0x080cU; | |
3541 | } else { | |
3542 | tp_features.hotkey_mask = 1; | |
3543 | } | |
3544 | break; | |
3545 | ||
3546 | case 2: | |
3547 | /* | |
3548 | * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) | |
3549 | */ | |
3550 | ||
3551 | /* Paranoia check AND init hotkey_all_mask */ | |
3552 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3553 | "MHKA", "dd", 1)) { | |
3554 | pr_err("missing MHKA handler, please report this to %s\n", | |
0d922e3b HMH |
3555 | TPACPI_MAIL); |
3556 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3557 | hotkey_all_mask = 0x080cU; | |
3558 | } else { | |
3559 | tp_features.hotkey_mask = 1; | |
3560 | } | |
0118c2d3 DW |
3561 | |
3562 | /* | |
3563 | * Check if we have an adaptive keyboard, like on the | |
3564 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3565 | */ | |
3566 | if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, | |
3567 | "MHKA", "dd", 2)) { | |
3568 | if (hotkey_adaptive_all_mask != 0) { | |
3569 | tp_features.has_adaptive_kbd = true; | |
3570 | res = sysfs_create_group( | |
3571 | &tpacpi_pdev->dev.kobj, | |
3572 | &adaptive_kbd_attr_group); | |
3573 | if (res) | |
3574 | goto err_exit; | |
3575 | } | |
3576 | } else { | |
3577 | tp_features.has_adaptive_kbd = false; | |
3578 | hotkey_adaptive_all_mask = 0x0U; | |
3579 | } | |
3580 | break; | |
3581 | ||
3582 | default: | |
3583 | pr_err("unknown version of the HKEY interface: 0x%x\n", | |
3584 | hkeyv); | |
3585 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
3586 | break; | |
1b6521dc | 3587 | } |
9c0a76e1 | 3588 | } |
56b6aeb0 | 3589 | |
56e2c200 HMH |
3590 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3591 | "hotkey masks are %s\n", | |
9c0a76e1 | 3592 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3593 | |
0d922e3b HMH |
3594 | /* Init hotkey_all_mask if not initialized yet */ |
3595 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3596 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3597 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3598 | |
0d922e3b | 3599 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3600 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3601 | /* hotkey_source_mask *must* be zero for |
3602 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3603 | res = hotkey_mask_get(); |
3604 | if (res) | |
3605 | goto err_exit; | |
3606 | ||
0d922e3b HMH |
3607 | hotkey_orig_mask = hotkey_acpi_mask; |
3608 | } else { | |
3609 | hotkey_orig_mask = hotkey_all_mask; | |
3610 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3611 | } |
74941a69 | 3612 | |
a73f3091 HMH |
3613 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3614 | if (dbg_wlswemul) { | |
3615 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3616 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3617 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3618 | } else |
3619 | #endif | |
9c0a76e1 HMH |
3620 | /* Not all thinkpads have a hardware radio switch */ |
3621 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3622 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3623 | radiosw_state = !!status; |
0978e012 | 3624 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3625 | enabled(status, 0)); |
3a872080 HMH |
3626 | } |
3627 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3628 | res = add_to_attr_set(hotkey_dev_attributes, |
3629 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3630 | |
b3180028 L |
3631 | res = hotkey_init_tablet_mode(); |
3632 | if (res < 0) | |
3633 | goto err_exit; | |
3634 | ||
3635 | tabletsw_state = res; | |
6c231bd5 | 3636 | |
b3180028 L |
3637 | res = register_attr_set_with_sysfs(hotkey_dev_attributes, |
3638 | &tpacpi_pdev->dev.kobj); | |
9c0a76e1 HMH |
3639 | if (res) |
3640 | goto err_exit; | |
6a38abbf | 3641 | |
9c0a76e1 | 3642 | /* Set up key map */ |
d1e14dca HMH |
3643 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3644 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3645 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3646 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3647 | "using keymap number %lu\n", keymap_id); | |
3648 | ||
35b7c808 FH |
3649 | hotkey_keycode_map = kmemdup(&tpacpi_keymaps[keymap_id], |
3650 | TPACPI_HOTKEY_MAP_SIZE, GFP_KERNEL); | |
3651 | if (!hotkey_keycode_map) { | |
3652 | pr_err("failed to allocate memory for key map\n"); | |
3653 | res = -ENOMEM; | |
3654 | goto err_exit; | |
3655 | } | |
edf0e0e5 | 3656 | |
792979c8 | 3657 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3658 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3659 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3660 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3661 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3662 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3663 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3664 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3665 | } else { |
3666 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3667 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3668 | } |
9c0a76e1 | 3669 | } |
6a38abbf | 3670 | |
9c0a76e1 | 3671 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3672 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3673 | input_report_switch(tpacpi_inputdev, |
3674 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3675 | } |
3676 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3677 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3678 | input_report_switch(tpacpi_inputdev, |
3679 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3680 | } |
5c29d58f | 3681 | |
9c0a76e1 | 3682 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3683 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3684 | * been called before this point */ | |
b33c6ce5 | 3685 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
5cac62ac AS |
3686 | pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n"); |
3687 | pr_notice("Disabling thinkpad-acpi brightness events by default...\n"); | |
9c0a76e1 | 3688 | |
de4c8cc7 HMH |
3689 | /* Disable brightness up/down on Lenovo thinkpads when |
3690 | * ACPI is handling them, otherwise it is plain impossible | |
3691 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3692 | hotkey_reserved_mask |= |
3693 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3694 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3695 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3696 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3697 | } |
ff80f137 | 3698 | |
230d8cf2 | 3699 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3700 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3701 | & ~hotkey_all_mask | |
3702 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3703 | |
3704 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3705 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3706 | hotkey_source_mask, hotkey_poll_freq); | |
3707 | #endif | |
3708 | ||
56e2c200 HMH |
3709 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3710 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3711 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3712 | if (res) { |
3713 | hotkey_exit(); | |
3714 | return res; | |
3715 | } | |
0d922e3b HMH |
3716 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3717 | | hotkey_driver_mask) | |
3718 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3719 | if (res < 0 && res != -ENXIO) { |
3720 | hotkey_exit(); | |
3721 | return res; | |
3722 | } | |
0d922e3b HMH |
3723 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3724 | & ~hotkey_reserved_mask; | |
3725 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3726 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3727 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3728 | |
9c0a76e1 HMH |
3729 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3730 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3731 | |
db25f16d | 3732 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3733 | |
9c0a76e1 | 3734 | return 0; |
01e88f25 | 3735 | |
9c0a76e1 HMH |
3736 | err_exit: |
3737 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3738 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3739 | &adaptive_kbd_attr_group); | |
3740 | ||
9c0a76e1 | 3741 | hotkey_dev_attributes = NULL; |
a0416420 | 3742 | |
72a979f0 | 3743 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3744 | } |
3745 | ||
3a9d20bd SS |
3746 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3747 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3748 | * We support Home mode and Function mode currently. | |
3749 | * | |
3750 | * Will consider support rest of modes in future. | |
3751 | * | |
3752 | */ | |
b201a47f | 3753 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3754 | HOME_MODE, |
3755 | /* WEB_BROWSER_MODE = 2, | |
3756 | WEB_CONFERENCE_MODE = 3, */ | |
3757 | FUNCTION_MODE | |
3758 | }; | |
3759 | ||
3760 | #define DFR_CHANGE_ROW 0x101 | |
3761 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 | 3762 | #define FIRST_ADAPTIVE_KEY 0x103 |
3a9d20bd SS |
3763 | |
3764 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3765 | * release Fn key, previous mode be restored. | |
3766 | */ | |
3767 | static bool adaptive_keyboard_mode_is_saved; | |
3768 | static int adaptive_keyboard_prev_mode; | |
3769 | ||
f74587fb BN |
3770 | static int adaptive_keyboard_get_mode(void) |
3771 | { | |
3772 | int mode = 0; | |
3773 | ||
3774 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3775 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3776 | return -EIO; | |
3777 | } | |
3778 | ||
3779 | return mode; | |
3780 | } | |
3781 | ||
3782 | static int adaptive_keyboard_set_mode(int new_mode) | |
3783 | { | |
3784 | if (new_mode < 0 || | |
3785 | new_mode > LAYFLAT_MODE) | |
3786 | return -EINVAL; | |
3787 | ||
3788 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3789 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3790 | return -EIO; | |
3791 | } | |
3792 | ||
3793 | return 0; | |
3794 | } | |
3795 | ||
3a9d20bd SS |
3796 | static int adaptive_keyboard_get_next_mode(int mode) |
3797 | { | |
3798 | size_t i; | |
3799 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3800 | ||
3801 | for (i = 0; i <= max_mode; i++) { | |
3802 | if (adaptive_keyboard_modes[i] == mode) | |
3803 | break; | |
3804 | } | |
3805 | ||
3806 | if (i >= max_mode) | |
3807 | i = 0; | |
3808 | else | |
3809 | i++; | |
3810 | ||
3811 | return adaptive_keyboard_modes[i]; | |
3812 | } | |
3813 | ||
3814 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3815 | { | |
abf9dc0d | 3816 | int current_mode = 0; |
3a9d20bd | 3817 | int new_mode = 0; |
6a68d855 | 3818 | int keycode; |
3a9d20bd SS |
3819 | |
3820 | switch (scancode) { | |
3821 | case DFR_CHANGE_ROW: | |
3822 | if (adaptive_keyboard_mode_is_saved) { | |
3823 | new_mode = adaptive_keyboard_prev_mode; | |
3824 | adaptive_keyboard_mode_is_saved = false; | |
3825 | } else { | |
f74587fb BN |
3826 | current_mode = adaptive_keyboard_get_mode(); |
3827 | if (current_mode < 0) | |
3a9d20bd | 3828 | return false; |
f74587fb BN |
3829 | new_mode = adaptive_keyboard_get_next_mode( |
3830 | current_mode); | |
3a9d20bd SS |
3831 | } |
3832 | ||
f74587fb | 3833 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3834 | return false; |
3a9d20bd SS |
3835 | |
3836 | return true; | |
3837 | ||
3838 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3839 | current_mode = adaptive_keyboard_get_mode(); |
3840 | if (current_mode < 0) | |
3a9d20bd | 3841 | return false; |
3a9d20bd | 3842 | |
f74587fb BN |
3843 | adaptive_keyboard_prev_mode = current_mode; |
3844 | adaptive_keyboard_mode_is_saved = true; | |
3845 | ||
3846 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3847 | return false; | |
3a9d20bd SS |
3848 | return true; |
3849 | ||
3850 | default: | |
741d98c7 | 3851 | if (scancode < FIRST_ADAPTIVE_KEY || |
696c6523 CK |
3852 | scancode >= FIRST_ADAPTIVE_KEY + |
3853 | TP_ACPI_HOTKEYSCAN_EXTENDED_START - | |
3854 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
6a68d855 | 3855 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
5cac62ac | 3856 | scancode); |
6a68d855 BN |
3857 | return false; |
3858 | } | |
149c8c75 CK |
3859 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + |
3860 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START]; | |
6a68d855 BN |
3861 | if (keycode != KEY_RESERVED) { |
3862 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3863 | ||
3864 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3865 | input_sync(tpacpi_inputdev); | |
3866 | ||
3867 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3868 | input_sync(tpacpi_inputdev); | |
3869 | ||
3870 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3871 | } | |
3872 | return true; | |
3a9d20bd SS |
3873 | } |
3874 | } | |
3875 | ||
3827e7a3 HMH |
3876 | static bool hotkey_notify_hotkey(const u32 hkey, |
3877 | bool *send_acpi_ev, | |
3878 | bool *ignore_acpi_ev) | |
3879 | { | |
3880 | /* 0x1000-0x1FFF: key presses */ | |
3881 | unsigned int scancode = hkey & 0xfff; | |
3882 | *send_acpi_ev = true; | |
3883 | *ignore_acpi_ev = false; | |
3884 | ||
696c6523 CK |
3885 | /* |
3886 | * Original events are in the 0x10XX range, the adaptive keyboard | |
3887 | * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017 | |
3888 | * models, additional keys are emitted through 0x13XX. | |
3889 | */ | |
3890 | switch ((hkey >> 8) & 0xf) { | |
3891 | case 0: | |
3892 | if (scancode > 0 && | |
3893 | scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
3894 | /* HKEY event 0x1001 is scancode 0x00 */ | |
3895 | scancode--; | |
3896 | if (!(hotkey_source_mask & (1 << scancode))) { | |
3897 | tpacpi_input_send_key_masked(scancode); | |
3898 | *send_acpi_ev = false; | |
3899 | } else { | |
3900 | *ignore_acpi_ev = true; | |
3901 | } | |
3902 | return true; | |
3827e7a3 | 3903 | } |
696c6523 CK |
3904 | break; |
3905 | ||
3906 | case 1: | |
3a9d20bd | 3907 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); |
696c6523 CK |
3908 | |
3909 | case 3: | |
3910 | /* Extended keycodes start at 0x300 and our offset into the map | |
3911 | * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode | |
3912 | * will be positive, but might not be in the correct range. | |
3913 | */ | |
3914 | scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START); | |
3915 | if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START && | |
3916 | scancode < TPACPI_HOTKEY_MAP_LEN) { | |
3917 | tpacpi_input_send_key(scancode); | |
3918 | return true; | |
3919 | } | |
3920 | break; | |
3827e7a3 | 3921 | } |
696c6523 | 3922 | |
3827e7a3 HMH |
3923 | return false; |
3924 | } | |
3925 | ||
3926 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3927 | bool *send_acpi_ev, | |
3928 | bool *ignore_acpi_ev) | |
3929 | { | |
3930 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3931 | *send_acpi_ev = true; | |
3932 | *ignore_acpi_ev = false; | |
3933 | ||
3934 | switch (hkey) { | |
67bcae6e HMH |
3935 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3936 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3937 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3938 | *ignore_acpi_ev = true; | |
3939 | break; | |
3940 | ||
67bcae6e HMH |
3941 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3942 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3943 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3944 | *ignore_acpi_ev = true; | |
3945 | break; | |
3946 | ||
67bcae6e HMH |
3947 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3948 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3949 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3950 | /* how to auto-heal: */ |
3951 | /* 2313: woke up from S3, go to S4/S5 */ | |
3952 | /* 2413: woke up from S4, go to S5 */ | |
3953 | break; | |
3954 | ||
3827e7a3 HMH |
3955 | default: |
3956 | return false; | |
3957 | } | |
3958 | ||
3959 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3960 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3961 | hotkey_wakeup_reason_notify_change(); |
3962 | } | |
3963 | return true; | |
3964 | } | |
3965 | ||
a50245af HMH |
3966 | static bool hotkey_notify_dockevent(const u32 hkey, |
3967 | bool *send_acpi_ev, | |
3968 | bool *ignore_acpi_ev) | |
3969 | { | |
3970 | /* 0x4000-0x4FFF: dock-related events */ | |
3971 | *send_acpi_ev = true; | |
3972 | *ignore_acpi_ev = false; | |
3973 | ||
3974 | switch (hkey) { | |
3975 | case TP_HKEY_EV_UNDOCK_ACK: | |
3976 | /* ACPI undock operation completed after wakeup */ | |
3977 | hotkey_autosleep_ack = 1; | |
3978 | pr_info("undocked\n"); | |
3979 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3980 | return true; | |
3981 | ||
3982 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3983 | pr_info("docked into hotplug port replicator\n"); | |
3984 | return true; | |
3985 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3986 | pr_info("undocked from hotplug port replicator\n"); | |
3987 | return true; | |
3988 | ||
0a053f01 AK |
3989 | /* |
3990 | * Deliberately ignore attaching and detaching the keybord cover to avoid | |
3991 | * duplicates from intel-vbtn, which already emits SW_TABLET_MODE events | |
3992 | * to userspace. | |
3993 | * | |
3994 | * Please refer to the following thread for more information and a preliminary | |
3995 | * implementation using the GTOP ("Get Tablet OPtions") interface that could be | |
3996 | * extended to other attachment options of the ThinkPad X1 Tablet series, such as | |
3997 | * the Pico cartridge dock module: | |
3998 | * https://lore.kernel.org/platform-driver-x86/38cb8265-1e30-d547-9e12-b4ae290be737@a-kobel.de/ | |
3999 | */ | |
4000 | case TP_HKEY_EV_KBD_COVER_ATTACH: | |
4001 | case TP_HKEY_EV_KBD_COVER_DETACH: | |
4002 | *send_acpi_ev = false; | |
4003 | *ignore_acpi_ev = true; | |
4004 | return true; | |
4005 | ||
a50245af HMH |
4006 | default: |
4007 | return false; | |
4008 | } | |
4009 | } | |
4010 | ||
3827e7a3 HMH |
4011 | static bool hotkey_notify_usrevent(const u32 hkey, |
4012 | bool *send_acpi_ev, | |
4013 | bool *ignore_acpi_ev) | |
4014 | { | |
4015 | /* 0x5000-0x5FFF: human interface helpers */ | |
4016 | *send_acpi_ev = true; | |
4017 | *ignore_acpi_ev = false; | |
4018 | ||
4019 | switch (hkey) { | |
67bcae6e HMH |
4020 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
4021 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
4022 | return true; |
4023 | ||
67bcae6e HMH |
4024 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
4025 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
4026 | tpacpi_input_send_tabletsw(); |
4027 | hotkey_tablet_mode_notify_change(); | |
4028 | *send_acpi_ev = false; | |
4029 | return true; | |
4030 | ||
67bcae6e HMH |
4031 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
4032 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
4033 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 4034 | /* do not propagate these events */ |
3827e7a3 HMH |
4035 | *ignore_acpi_ev = true; |
4036 | return true; | |
4037 | ||
4038 | default: | |
4039 | return false; | |
4040 | } | |
4041 | } | |
4042 | ||
9ebd9e83 | 4043 | static void thermal_dump_all_sensors(void); |
1ac09656 | 4044 | static void palmsensor_refresh(void); |
9ebd9e83 | 4045 | |
2d43f671 | 4046 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
4047 | bool *send_acpi_ev, |
4048 | bool *ignore_acpi_ev) | |
4049 | { | |
2d43f671 | 4050 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
4051 | *send_acpi_ev = true; |
4052 | *ignore_acpi_ev = false; | |
4053 | ||
4054 | switch (hkey) { | |
9ebd9e83 | 4055 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
6e6bc5f6 HMH |
4056 | pr_debug("EC reports: Thermal Table has changed\n"); |
4057 | /* recommended action: do nothing, we don't have | |
4058 | * Lenovo ATM information */ | |
4059 | return true; | |
4060 | case TP_HKEY_EV_THM_CSM_COMPLETED: | |
4061 | pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n"); | |
acf7f4a5 MP |
4062 | /* Thermal event - pass on to event handler */ |
4063 | tpacpi_driver_event(hkey); | |
6e6bc5f6 HMH |
4064 | return true; |
4065 | case TP_HKEY_EV_THM_TRANSFM_CHANGED: | |
4066 | pr_debug("EC reports: Thermal Transformation changed (GMTS)\n"); | |
9ebd9e83 HMH |
4067 | /* recommended action: do nothing, we don't have |
4068 | * Lenovo ATM information */ | |
4069 | return true; | |
67bcae6e | 4070 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 4071 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 4072 | /* recommended action: warn user through gui */ |
9ebd9e83 | 4073 | break; |
67bcae6e | 4074 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 4075 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 4076 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4077 | break; |
67bcae6e | 4078 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
5cac62ac | 4079 | pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n"); |
106b4e66 HMH |
4080 | /* recommended action: warn user through gui, that */ |
4081 | /* some internal component is too hot */ | |
9ebd9e83 | 4082 | break; |
67bcae6e | 4083 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
5cac62ac | 4084 | pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n"); |
106b4e66 | 4085 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4086 | break; |
6f62bc3e RH |
4087 | case TP_HKEY_EV_AC_CHANGED: |
4088 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
4089 | * AC status changed; can be triggered by plugging or | |
4090 | * unplugging AC adapter, docking or undocking. */ | |
4091 | ||
df561f66 | 4092 | fallthrough; |
2d43f671 HMH |
4093 | |
4094 | case TP_HKEY_EV_KEY_NUMLOCK: | |
4095 | case TP_HKEY_EV_KEY_FN: | |
4096 | /* key press events, we just ignore them as long as the EC | |
4097 | * is still reporting them in the normal keyboard stream */ | |
4098 | *send_acpi_ev = false; | |
4099 | *ignore_acpi_ev = true; | |
4100 | return true; | |
4101 | ||
12dde4d1 | 4102 | case TP_HKEY_EV_KEY_FN_ESC: |
49702bac | 4103 | /* Get the media key status to force the status LED to update */ |
12dde4d1 EVC |
4104 | acpi_evalf(hkey_handle, NULL, "GMKS", "v"); |
4105 | *send_acpi_ev = false; | |
4106 | *ignore_acpi_ev = true; | |
4107 | return true; | |
4108 | ||
b03f4d49 L |
4109 | case TP_HKEY_EV_TABLET_CHANGED: |
4110 | tpacpi_input_send_tabletsw(); | |
4111 | hotkey_tablet_mode_notify_change(); | |
4112 | *send_acpi_ev = false; | |
edd1ed73 | 4113 | return true; |
b03f4d49 | 4114 | |
587d8628 DH |
4115 | case TP_HKEY_EV_PALM_DETECTED: |
4116 | case TP_HKEY_EV_PALM_UNDETECTED: | |
1ac09656 MP |
4117 | /* palm detected - pass on to event handler */ |
4118 | palmsensor_refresh(); | |
587d8628 DH |
4119 | return true; |
4120 | ||
106b4e66 | 4121 | default: |
fd75ba2b HMH |
4122 | /* report simply as unknown, no sensor dump */ |
4123 | return false; | |
106b4e66 | 4124 | } |
9ebd9e83 HMH |
4125 | |
4126 | thermal_dump_all_sensors(); | |
fd75ba2b | 4127 | return true; |
106b4e66 HMH |
4128 | } |
4129 | ||
56b6aeb0 HMH |
4130 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
4131 | { | |
6a38abbf | 4132 | u32 hkey; |
3827e7a3 HMH |
4133 | bool send_acpi_ev; |
4134 | bool ignore_acpi_ev; | |
4135 | bool known_ev; | |
3eea123d HMH |
4136 | |
4137 | if (event != 0x80) { | |
0978e012 | 4138 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 4139 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
4140 | acpi_bus_generate_netlink_event( |
4141 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4142 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4143 | event, 0); |
3eea123d HMH |
4144 | return; |
4145 | } | |
4146 | ||
4147 | while (1) { | |
4148 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 4149 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
4150 | return; |
4151 | } | |
4152 | ||
4153 | if (hkey == 0) { | |
4154 | /* queue empty */ | |
4155 | return; | |
4156 | } | |
4157 | ||
3827e7a3 HMH |
4158 | send_acpi_ev = true; |
4159 | ignore_acpi_ev = false; | |
56b6aeb0 | 4160 | |
ff80f137 HMH |
4161 | switch (hkey >> 12) { |
4162 | case 1: | |
4163 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
4164 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
4165 | &ignore_acpi_ev); | |
ff80f137 | 4166 | break; |
a713b4d7 | 4167 | case 2: |
3827e7a3 HMH |
4168 | /* 0x2000-0x2FFF: Wakeup reason */ |
4169 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
4170 | &ignore_acpi_ev); | |
a713b4d7 HMH |
4171 | break; |
4172 | case 3: | |
3827e7a3 | 4173 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
4174 | switch (hkey) { |
4175 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 4176 | hotkey_autosleep_ack = 1; |
0978e012 | 4177 | pr_info("bay ejected\n"); |
50ebec09 | 4178 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 4179 | known_ev = true; |
bf8b29c8 HMH |
4180 | break; |
4181 | case TP_HKEY_EV_OPTDRV_EJ: | |
4182 | /* FIXME: kick libata if SATA link offline */ | |
4183 | known_ev = true; | |
4184 | break; | |
4185 | default: | |
3827e7a3 | 4186 | known_ev = false; |
a713b4d7 HMH |
4187 | } |
4188 | break; | |
4189 | case 4: | |
a50245af HMH |
4190 | /* 0x4000-0x4FFF: dock-related events */ |
4191 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
4192 | &ignore_acpi_ev); | |
a713b4d7 | 4193 | break; |
ff80f137 | 4194 | case 5: |
d1edb2b5 | 4195 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
4196 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
4197 | &ignore_acpi_ev); | |
ff80f137 | 4198 | break; |
106b4e66 | 4199 | case 6: |
2d43f671 HMH |
4200 | /* 0x6000-0x6FFF: thermal alarms/notices and |
4201 | * keyboard events */ | |
4202 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
4203 | &ignore_acpi_ev); |
4204 | break; | |
ff80f137 HMH |
4205 | case 7: |
4206 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
4207 | if (tp_features.hotkey_wlsw && |
4208 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 4209 | tpacpi_send_radiosw_update(); |
3b64b51d | 4210 | send_acpi_ev = 0; |
3827e7a3 | 4211 | known_ev = true; |
6a38abbf | 4212 | break; |
6a38abbf | 4213 | } |
df561f66 | 4214 | fallthrough; /* to default */ |
ff80f137 | 4215 | default: |
3827e7a3 | 4216 | known_ev = false; |
3b64b51d | 4217 | } |
3827e7a3 | 4218 | if (!known_ev) { |
0978e012 | 4219 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
5cac62ac AS |
4220 | pr_notice("please report the conditions when this event happened to %s\n", |
4221 | TPACPI_MAIL); | |
6a38abbf | 4222 | } |
ff80f137 | 4223 | |
3eea123d | 4224 | /* netlink events */ |
3e5ce914 | 4225 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
4226 | acpi_bus_generate_netlink_event( |
4227 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4228 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4229 | event, hkey); |
3eea123d | 4230 | } |
56b6aeb0 HMH |
4231 | } |
4232 | } | |
4233 | ||
fd3c3a42 | 4234 | static void hotkey_suspend(void) |
a713b4d7 HMH |
4235 | { |
4236 | /* Do these on suspend, we get the events on early resume! */ | |
4237 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
4238 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
4239 | |
4240 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4241 | if (tp_features.has_adaptive_kbd) { |
4242 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
4243 | "GTRW", "dd", 0)) { | |
4244 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
4245 | } |
4246 | } | |
a713b4d7 HMH |
4247 | } |
4248 | ||
5c29d58f HMH |
4249 | static void hotkey_resume(void) |
4250 | { | |
d64c81c4 HMH |
4251 | tpacpi_disable_brightness_delay(); |
4252 | ||
0d922e3b HMH |
4253 | if (hotkey_status_set(true) < 0 || |
4254 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
5cac62ac | 4255 | pr_err("error while attempting to reset the event firmware interface\n"); |
0d922e3b | 4256 | |
733e27c1 | 4257 | tpacpi_send_radiosw_update(); |
96adb419 | 4258 | tpacpi_input_send_tabletsw(); |
6c231bd5 | 4259 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4260 | hotkey_wakeup_reason_notify_change(); |
4261 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4262 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4263 | |
4264 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4265 | if (tp_features.has_adaptive_kbd) { |
4266 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4267 | adaptive_keyboard_prev_mode)) { | |
4268 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4269 | } |
4270 | } | |
5c29d58f HMH |
4271 | } |
4272 | ||
a0416420 | 4273 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4274 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4275 | { |
ae92bd17 | 4276 | int res, status; |
1da177e4 | 4277 | |
d8fd94d9 | 4278 | if (!tp_features.hotkey) { |
887965e6 AD |
4279 | seq_printf(m, "status:\t\tnot supported\n"); |
4280 | return 0; | |
78f81cc4 BD |
4281 | } |
4282 | ||
7646ea88 | 4283 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4284 | return -ERESTARTSYS; |
b2c985e7 HMH |
4285 | res = hotkey_status_get(&status); |
4286 | if (!res) | |
4287 | res = hotkey_mask_get(); | |
40ca9fdf | 4288 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4289 | if (res) |
4290 | return res; | |
1da177e4 | 4291 | |
887965e6 | 4292 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4293 | if (hotkey_all_mask) { |
887965e6 AD |
4294 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4295 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4296 | } else { |
887965e6 AD |
4297 | seq_printf(m, "mask:\t\tnot supported\n"); |
4298 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4299 | } |
4300 | ||
887965e6 | 4301 | return 0; |
1da177e4 LT |
4302 | } |
4303 | ||
406e988b | 4304 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4305 | { |
4306 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4307 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
5cac62ac AS |
4308 | pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n"))) |
4309 | pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4310 | } |
4311 | ||
78f81cc4 | 4312 | static int hotkey_write(char *buf) |
1da177e4 | 4313 | { |
2586d566 | 4314 | int res; |
ae92bd17 | 4315 | u32 mask; |
1da177e4 | 4316 | char *cmd; |
1da177e4 | 4317 | |
d8fd94d9 | 4318 | if (!tp_features.hotkey) |
1da177e4 LT |
4319 | return -ENODEV; |
4320 | ||
7646ea88 | 4321 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4322 | return -ERESTARTSYS; |
40ca9fdf | 4323 | |
0d922e3b | 4324 | mask = hotkey_user_mask; |
78f81cc4 | 4325 | |
40ca9fdf | 4326 | res = 0; |
be51bd45 | 4327 | while ((cmd = strsep(&buf, ","))) { |
1da177e4 | 4328 | if (strlencmp(cmd, "enable") == 0) { |
406e988b | 4329 | hotkey_enabledisable_warn(1); |
1da177e4 | 4330 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4331 | hotkey_enabledisable_warn(0); |
2586d566 | 4332 | res = -EPERM; |
1da177e4 | 4333 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4334 | mask = (hotkey_all_mask | hotkey_source_mask) |
4335 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4336 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4337 | /* mask set */ | |
4338 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4339 | /* mask set */ | |
40ca9fdf HMH |
4340 | } else { |
4341 | res = -EINVAL; | |
4342 | goto errexit; | |
4343 | } | |
1da177e4 | 4344 | } |
56e2c200 | 4345 | |
0d922e3b | 4346 | if (!res) { |
56e2c200 HMH |
4347 | tpacpi_disclose_usertask("procfs hotkey", |
4348 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4349 | res = hotkey_user_mask_set(mask); |
4350 | } | |
1da177e4 | 4351 | |
40ca9fdf HMH |
4352 | errexit: |
4353 | mutex_unlock(&hotkey_mutex); | |
4354 | return res; | |
78f81cc4 | 4355 | } |
1da177e4 | 4356 | |
1ba90e3a | 4357 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4358 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4359 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
a3c42a46 | 4360 | {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, |
1ba90e3a TR |
4361 | {"", 0}, |
4362 | }; | |
4363 | ||
8d376cd6 | 4364 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4365 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4366 | .notify = hotkey_notify, |
4367 | .handle = &hkey_handle, | |
4368 | .type = ACPI_DEVICE_NOTIFY, | |
4369 | }; | |
4370 | ||
a5763f22 HMH |
4371 | static struct ibm_struct hotkey_driver_data = { |
4372 | .name = "hotkey", | |
a5763f22 HMH |
4373 | .read = hotkey_read, |
4374 | .write = hotkey_write, | |
4375 | .exit = hotkey_exit, | |
5c29d58f | 4376 | .resume = hotkey_resume, |
a713b4d7 | 4377 | .suspend = hotkey_suspend, |
8d376cd6 | 4378 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4379 | }; |
4380 | ||
56b6aeb0 HMH |
4381 | /************************************************************************* |
4382 | * Bluetooth subdriver | |
4383 | */ | |
1da177e4 | 4384 | |
f74a27d4 HMH |
4385 | enum { |
4386 | /* ACPI GBDC/SBDC bits */ | |
4387 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4388 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4389 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4390 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4391 | }; |
4392 | ||
4393 | enum { | |
4394 | /* ACPI \BLTH commands */ | |
4395 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4396 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4397 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4398 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4399 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4400 | }; |
4401 | ||
bee4cd9b HMH |
4402 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4403 | ||
19d337df | 4404 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4405 | { |
4406 | int status; | |
4407 | ||
a73f3091 HMH |
4408 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4409 | if (dbg_bluetoothemul) | |
4410 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4411 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4412 | #endif |
4413 | ||
07431ec8 HMH |
4414 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4415 | return -EIO; | |
4416 | ||
0e74dc26 | 4417 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4418 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4419 | } |
4420 | ||
19d337df | 4421 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4422 | { |
4423 | int status; | |
4424 | ||
bee4cd9b | 4425 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4426 | "will attempt to %s bluetooth\n", |
4427 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4428 | |
a73f3091 HMH |
4429 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4430 | if (dbg_bluetoothemul) { | |
19d337df | 4431 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4432 | return 0; |
4433 | } | |
4434 | #endif | |
4435 | ||
19d337df | 4436 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4437 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4438 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4439 | else | |
4440 | status = 0; | |
19d337df | 4441 | |
07431ec8 HMH |
4442 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4443 | return -EIO; | |
4444 | ||
4445 | return 0; | |
4446 | } | |
f74a27d4 | 4447 | |
d3a6ade4 HMH |
4448 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4449 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4450 | struct device_attribute *attr, | |
4451 | char *buf) | |
4452 | { | |
19d337df JB |
4453 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4454 | attr, buf); | |
d3a6ade4 HMH |
4455 | } |
4456 | ||
4457 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4458 | struct device_attribute *attr, | |
4459 | const char *buf, size_t count) | |
4460 | { | |
19d337df JB |
4461 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4462 | attr, buf, count); | |
d3a6ade4 HMH |
4463 | } |
4464 | ||
b4dd04ac | 4465 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4466 | |
4467 | /* --------------------------------------------------------------------- */ | |
4468 | ||
4469 | static struct attribute *bluetooth_attributes[] = { | |
4470 | &dev_attr_bluetooth_enable.attr, | |
4471 | NULL | |
4472 | }; | |
4473 | ||
4474 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4475 | .attrs = bluetooth_attributes, |
4476 | }; | |
4477 | ||
19d337df JB |
4478 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4479 | .get_status = bluetooth_get_status, | |
4480 | .set_status = bluetooth_set_status, | |
4481 | }; | |
0e74dc26 | 4482 | |
90d9d3c7 HMH |
4483 | static void bluetooth_shutdown(void) |
4484 | { | |
4485 | /* Order firmware to save current state to NVRAM */ | |
4486 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4487 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4488 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4489 | else |
4490 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4491 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4492 | } |
4493 | ||
07431ec8 HMH |
4494 | static void bluetooth_exit(void) |
4495 | { | |
4496 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4497 | &bluetooth_attr_group); | |
19d337df JB |
4498 | |
4499 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4500 | ||
4501 | bluetooth_shutdown(); | |
07431ec8 HMH |
4502 | } |
4503 | ||
f7db839f JY |
4504 | static const struct dmi_system_id bt_fwbug_list[] __initconst = { |
4505 | { | |
4506 | .ident = "ThinkPad E485", | |
4507 | .matches = { | |
4508 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4509 | DMI_MATCH(DMI_BOARD_NAME, "20KU"), | |
4510 | }, | |
4511 | }, | |
4512 | { | |
4513 | .ident = "ThinkPad E585", | |
4514 | .matches = { | |
4515 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4516 | DMI_MATCH(DMI_BOARD_NAME, "20KV"), | |
4517 | }, | |
4518 | }, | |
4519 | { | |
4520 | .ident = "ThinkPad A285 - 20MW", | |
4521 | .matches = { | |
4522 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4523 | DMI_MATCH(DMI_BOARD_NAME, "20MW"), | |
4524 | }, | |
4525 | }, | |
4526 | { | |
4527 | .ident = "ThinkPad A285 - 20MX", | |
4528 | .matches = { | |
4529 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4530 | DMI_MATCH(DMI_BOARD_NAME, "20MX"), | |
4531 | }, | |
4532 | }, | |
4533 | { | |
4534 | .ident = "ThinkPad A485 - 20MU", | |
4535 | .matches = { | |
4536 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4537 | DMI_MATCH(DMI_BOARD_NAME, "20MU"), | |
4538 | }, | |
4539 | }, | |
4540 | { | |
4541 | .ident = "ThinkPad A485 - 20MV", | |
4542 | .matches = { | |
4543 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4544 | DMI_MATCH(DMI_BOARD_NAME, "20MV"), | |
4545 | }, | |
4546 | }, | |
4547 | {} | |
4548 | }; | |
4549 | ||
4550 | static const struct pci_device_id fwbug_cards_ids[] __initconst = { | |
4551 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) }, | |
4552 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) }, | |
4553 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) }, | |
4554 | {} | |
4555 | }; | |
4556 | ||
4557 | ||
4558 | static int __init have_bt_fwbug(void) | |
4559 | { | |
4560 | /* | |
4561 | * Some AMD based ThinkPads have a firmware bug that calling | |
4562 | * "GBDC" will cause bluetooth on Intel wireless cards blocked | |
4563 | */ | |
4564 | if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) { | |
4565 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, | |
4566 | FW_BUG "disable bluetooth subdriver for Intel cards\n"); | |
4567 | return 1; | |
4568 | } else | |
4569 | return 0; | |
4570 | } | |
4571 | ||
a5763f22 | 4572 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4573 | { |
d3a6ade4 | 4574 | int res; |
d6fdd1e9 HMH |
4575 | int status = 0; |
4576 | ||
bee4cd9b HMH |
4577 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4578 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4579 | |
e0c7dfe7 | 4580 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4581 | |
78f81cc4 BD |
4582 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4583 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
f7db839f | 4584 | tp_features.bluetooth = !have_bt_fwbug() && hkey_handle && |
d6fdd1e9 HMH |
4585 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4586 | ||
bee4cd9b HMH |
4587 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4588 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4589 | str_supported(tp_features.bluetooth), |
4590 | status); | |
4591 | ||
a73f3091 HMH |
4592 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4593 | if (dbg_bluetoothemul) { | |
4594 | tp_features.bluetooth = 1; | |
0978e012 | 4595 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4596 | } else |
4597 | #endif | |
3a872080 HMH |
4598 | if (tp_features.bluetooth && |
4599 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4600 | /* no bluetooth hardware present in system */ | |
4601 | tp_features.bluetooth = 0; | |
bee4cd9b | 4602 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4603 | "bluetooth hardware not installed\n"); |
4604 | } | |
4605 | ||
0e74dc26 HMH |
4606 | if (!tp_features.bluetooth) |
4607 | return 1; | |
4608 | ||
0e74dc26 | 4609 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4610 | &bluetooth_tprfk_ops, |
0e74dc26 | 4611 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4612 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4613 | true); |
4614 | if (res) | |
4615 | return res; | |
4616 | ||
4617 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4618 | &bluetooth_attr_group); | |
0e74dc26 | 4619 | if (res) { |
19d337df | 4620 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4621 | return res; |
d6fdd1e9 | 4622 | } |
fe08bc4b | 4623 | |
0e74dc26 | 4624 | return 0; |
1da177e4 LT |
4625 | } |
4626 | ||
d3a6ade4 | 4627 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4628 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4629 | { |
887965e6 | 4630 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4631 | } |
4632 | ||
78f81cc4 | 4633 | static int bluetooth_write(char *buf) |
1da177e4 | 4634 | { |
19d337df | 4635 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4636 | } |
4637 | ||
a5763f22 HMH |
4638 | static struct ibm_struct bluetooth_driver_data = { |
4639 | .name = "bluetooth", | |
4640 | .read = bluetooth_read, | |
4641 | .write = bluetooth_write, | |
d3a6ade4 | 4642 | .exit = bluetooth_exit, |
90d9d3c7 | 4643 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4644 | }; |
4645 | ||
56b6aeb0 HMH |
4646 | /************************************************************************* |
4647 | * Wan subdriver | |
4648 | */ | |
4649 | ||
f74a27d4 HMH |
4650 | enum { |
4651 | /* ACPI GWAN/SWAN bits */ | |
4652 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4653 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4654 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4655 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4656 | }; |
4657 | ||
bee4cd9b HMH |
4658 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4659 | ||
19d337df | 4660 | static int wan_get_status(void) |
07431ec8 HMH |
4661 | { |
4662 | int status; | |
4663 | ||
a73f3091 HMH |
4664 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4665 | if (dbg_wwanemul) | |
4666 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4667 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4668 | #endif |
4669 | ||
07431ec8 HMH |
4670 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4671 | return -EIO; | |
4672 | ||
0e74dc26 | 4673 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4674 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4675 | } |
4676 | ||
19d337df | 4677 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4678 | { |
4679 | int status; | |
4680 | ||
bee4cd9b | 4681 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4682 | "will attempt to %s wwan\n", |
4683 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4684 | |
a73f3091 HMH |
4685 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4686 | if (dbg_wwanemul) { | |
19d337df | 4687 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4688 | return 0; |
4689 | } | |
4690 | #endif | |
4691 | ||
19d337df | 4692 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4693 | status = TP_ACPI_WANCARD_RADIOSSW |
4694 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4695 | else | |
4696 | status = 0; | |
19d337df | 4697 | |
07431ec8 HMH |
4698 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4699 | return -EIO; | |
4700 | ||
4701 | return 0; | |
4702 | } | |
f74a27d4 | 4703 | |
d3a6ade4 HMH |
4704 | /* sysfs wan enable ---------------------------------------------------- */ |
4705 | static ssize_t wan_enable_show(struct device *dev, | |
4706 | struct device_attribute *attr, | |
4707 | char *buf) | |
4708 | { | |
19d337df JB |
4709 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4710 | attr, buf); | |
d3a6ade4 HMH |
4711 | } |
4712 | ||
4713 | static ssize_t wan_enable_store(struct device *dev, | |
4714 | struct device_attribute *attr, | |
4715 | const char *buf, size_t count) | |
4716 | { | |
19d337df JB |
4717 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4718 | attr, buf, count); | |
d3a6ade4 HMH |
4719 | } |
4720 | ||
5fb73bc2 BM |
4721 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4722 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4723 | |
4724 | /* --------------------------------------------------------------------- */ | |
4725 | ||
4726 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4727 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4728 | NULL |
4729 | }; | |
4730 | ||
4731 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4732 | .attrs = wan_attributes, |
4733 | }; | |
4734 | ||
19d337df JB |
4735 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4736 | .get_status = wan_get_status, | |
4737 | .set_status = wan_set_status, | |
4738 | }; | |
0e74dc26 | 4739 | |
90d9d3c7 HMH |
4740 | static void wan_shutdown(void) |
4741 | { | |
4742 | /* Order firmware to save current state to NVRAM */ | |
4743 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4744 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4745 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4746 | else |
4747 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4748 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4749 | } |
4750 | ||
07431ec8 HMH |
4751 | static void wan_exit(void) |
4752 | { | |
4753 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4754 | &wan_attr_group); | |
19d337df JB |
4755 | |
4756 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4757 | ||
4758 | wan_shutdown(); | |
07431ec8 HMH |
4759 | } |
4760 | ||
a5763f22 | 4761 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4762 | { |
d3a6ade4 | 4763 | int res; |
d6fdd1e9 HMH |
4764 | int status = 0; |
4765 | ||
bee4cd9b HMH |
4766 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4767 | "initializing wan subdriver\n"); | |
fe08bc4b | 4768 | |
e0c7dfe7 | 4769 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4770 | |
d8fd94d9 | 4771 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4772 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4773 | ||
bee4cd9b HMH |
4774 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4775 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4776 | str_supported(tp_features.wan), |
4777 | status); | |
4778 | ||
a73f3091 HMH |
4779 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4780 | if (dbg_wwanemul) { | |
4781 | tp_features.wan = 1; | |
0978e012 | 4782 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4783 | } else |
4784 | #endif | |
3a872080 HMH |
4785 | if (tp_features.wan && |
4786 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4787 | /* no wan hardware present in system */ | |
4788 | tp_features.wan = 0; | |
bee4cd9b | 4789 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4790 | "wan hardware not installed\n"); |
4791 | } | |
4792 | ||
0e74dc26 HMH |
4793 | if (!tp_features.wan) |
4794 | return 1; | |
4795 | ||
0e74dc26 | 4796 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4797 | &wan_tprfk_ops, |
0e74dc26 | 4798 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4799 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4800 | true); |
4801 | if (res) | |
4802 | return res; | |
4803 | ||
4804 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4805 | &wan_attr_group); | |
4806 | ||
0e74dc26 | 4807 | if (res) { |
19d337df | 4808 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4809 | return res; |
d6fdd1e9 | 4810 | } |
fe08bc4b | 4811 | |
0e74dc26 | 4812 | return 0; |
42adb53c JF |
4813 | } |
4814 | ||
d3a6ade4 | 4815 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4816 | static int wan_read(struct seq_file *m) |
42adb53c | 4817 | { |
887965e6 | 4818 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4819 | } |
4820 | ||
4821 | static int wan_write(char *buf) | |
4822 | { | |
19d337df | 4823 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4824 | } |
4825 | ||
a5763f22 HMH |
4826 | static struct ibm_struct wan_driver_data = { |
4827 | .name = "wan", | |
4828 | .read = wan_read, | |
4829 | .write = wan_write, | |
d3a6ade4 | 4830 | .exit = wan_exit, |
90d9d3c7 | 4831 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4832 | }; |
4833 | ||
0045c0aa HMH |
4834 | /************************************************************************* |
4835 | * UWB subdriver | |
4836 | */ | |
4837 | ||
4838 | enum { | |
4839 | /* ACPI GUWB/SUWB bits */ | |
4840 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4841 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4842 | }; | |
4843 | ||
bee4cd9b HMH |
4844 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4845 | ||
19d337df | 4846 | static int uwb_get_status(void) |
0045c0aa HMH |
4847 | { |
4848 | int status; | |
4849 | ||
0045c0aa HMH |
4850 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4851 | if (dbg_uwbemul) | |
4852 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4853 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4854 | #endif |
4855 | ||
4856 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4857 | return -EIO; | |
4858 | ||
4859 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4860 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4861 | } |
4862 | ||
19d337df | 4863 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4864 | { |
4865 | int status; | |
4866 | ||
bee4cd9b | 4867 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4868 | "will attempt to %s UWB\n", |
4869 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4870 | |
0045c0aa HMH |
4871 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4872 | if (dbg_uwbemul) { | |
19d337df | 4873 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4874 | return 0; |
4875 | } | |
4876 | #endif | |
4877 | ||
19d337df JB |
4878 | if (state == TPACPI_RFK_RADIO_ON) |
4879 | status = TP_ACPI_UWB_RADIOSSW; | |
4880 | else | |
4881 | status = 0; | |
4882 | ||
0045c0aa HMH |
4883 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4884 | return -EIO; | |
4885 | ||
0045c0aa HMH |
4886 | return 0; |
4887 | } | |
4888 | ||
4889 | /* --------------------------------------------------------------------- */ | |
4890 | ||
19d337df JB |
4891 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4892 | .get_status = uwb_get_status, | |
4893 | .set_status = uwb_set_status, | |
4894 | }; | |
0045c0aa HMH |
4895 | |
4896 | static void uwb_exit(void) | |
4897 | { | |
19d337df | 4898 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4899 | } |
4900 | ||
4901 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4902 | { | |
4903 | int res; | |
4904 | int status = 0; | |
4905 | ||
bee4cd9b HMH |
4906 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4907 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4908 | |
4909 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4910 | ||
4911 | tp_features.uwb = hkey_handle && | |
4912 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4913 | ||
bee4cd9b HMH |
4914 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4915 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4916 | str_supported(tp_features.uwb), |
4917 | status); | |
4918 | ||
4919 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4920 | if (dbg_uwbemul) { | |
4921 | tp_features.uwb = 1; | |
0978e012 | 4922 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4923 | } else |
4924 | #endif | |
4925 | if (tp_features.uwb && | |
4926 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4927 | /* no uwb hardware present in system */ | |
4928 | tp_features.uwb = 0; | |
4929 | dbg_printk(TPACPI_DBG_INIT, | |
4930 | "uwb hardware not installed\n"); | |
4931 | } | |
4932 | ||
4933 | if (!tp_features.uwb) | |
4934 | return 1; | |
4935 | ||
4936 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4937 | &uwb_tprfk_ops, |
0045c0aa | 4938 | RFKILL_TYPE_UWB, |
bee4cd9b | 4939 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4940 | false); |
0045c0aa HMH |
4941 | return res; |
4942 | } | |
4943 | ||
4944 | static struct ibm_struct uwb_driver_data = { | |
4945 | .name = "uwb", | |
4946 | .exit = uwb_exit, | |
4947 | .flags.experimental = 1, | |
4948 | }; | |
4949 | ||
56b6aeb0 HMH |
4950 | /************************************************************************* |
4951 | * Video subdriver | |
4952 | */ | |
4953 | ||
d7c1d17d HMH |
4954 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4955 | ||
f74a27d4 HMH |
4956 | enum video_access_mode { |
4957 | TPACPI_VIDEO_NONE = 0, | |
4958 | TPACPI_VIDEO_570, /* 570 */ | |
4959 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4960 | TPACPI_VIDEO_NEW, /* all others */ | |
4961 | }; | |
4962 | ||
4963 | enum { /* video status flags, based on VIDEO_570 */ | |
4964 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4965 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4966 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4967 | }; | |
4968 | ||
4969 | enum { /* TPACPI_VIDEO_570 constants */ | |
4970 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4971 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4972 | * video_status_flags */ | |
4973 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4974 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4975 | }; | |
4976 | ||
9a8e1738 HMH |
4977 | static enum video_access_mode video_supported; |
4978 | static int video_orig_autosw; | |
78f81cc4 | 4979 | |
f74a27d4 HMH |
4980 | static int video_autosw_get(void); |
4981 | static int video_autosw_set(int enable); | |
4982 | ||
112a6ee0 JP |
4983 | TPACPI_HANDLE(vid, root, |
4984 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4985 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4986 | "\\_SB.PCI0.VID0", /* 770e */ | |
4987 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4988 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4989 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4990 | ); /* R30, R31 */ | |
4991 | ||
e0c7dfe7 | 4992 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4993 | |
a5763f22 | 4994 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4995 | { |
78f81cc4 BD |
4996 | int ivga; |
4997 | ||
fe08bc4b HMH |
4998 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4999 | ||
e0c7dfe7 | 5000 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
5001 | if (tpacpi_is_ibm()) |
5002 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 5003 | |
78f81cc4 BD |
5004 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
5005 | /* G41, assume IVGA doesn't change */ | |
5006 | vid_handle = vid2_handle; | |
5007 | ||
5008 | if (!vid_handle) | |
5009 | /* video switching not supported on R30, R31 */ | |
efa27145 | 5010 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
5011 | else if (tpacpi_is_ibm() && |
5012 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 5013 | /* 570 */ |
efa27145 | 5014 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
5015 | else if (tpacpi_is_ibm() && |
5016 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 5017 | /* 600e/x, 770e, 770x */ |
efa27145 | 5018 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
5019 | else |
5020 | /* all others */ | |
efa27145 | 5021 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 5022 | |
fe08bc4b HMH |
5023 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
5024 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
5025 | video_supported); | |
5026 | ||
72a979f0 | 5027 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
5028 | } |
5029 | ||
56b6aeb0 HMH |
5030 | static void video_exit(void) |
5031 | { | |
83f34724 HMH |
5032 | dbg_printk(TPACPI_DBG_EXIT, |
5033 | "restoring original video autoswitch mode\n"); | |
5034 | if (video_autosw_set(video_orig_autosw)) | |
5cac62ac | 5035 | pr_err("error while trying to restore original video autoswitch mode\n"); |
56b6aeb0 HMH |
5036 | } |
5037 | ||
83f34724 | 5038 | static int video_outputsw_get(void) |
1da177e4 LT |
5039 | { |
5040 | int status = 0; | |
5041 | int i; | |
5042 | ||
83f34724 HMH |
5043 | switch (video_supported) { |
5044 | case TPACPI_VIDEO_570: | |
5045 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
5046 | TP_ACPI_VIDEO_570_PHSCMD)) | |
5047 | return -EIO; | |
5048 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
5049 | break; | |
5050 | case TPACPI_VIDEO_770: | |
5051 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
5052 | return -EIO; | |
5053 | if (i) | |
5054 | status |= TP_ACPI_VIDEO_S_LCD; | |
5055 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
5056 | return -EIO; | |
5057 | if (i) | |
5058 | status |= TP_ACPI_VIDEO_S_CRT; | |
5059 | break; | |
5060 | case TPACPI_VIDEO_NEW: | |
5061 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
5062 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
5063 | return -EIO; | |
5064 | if (i) | |
5065 | status |= TP_ACPI_VIDEO_S_CRT; | |
5066 | ||
5067 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
5068 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
5069 | return -EIO; | |
5070 | if (i) | |
5071 | status |= TP_ACPI_VIDEO_S_LCD; | |
5072 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
5073 | return -EIO; | |
5074 | if (i) | |
5075 | status |= TP_ACPI_VIDEO_S_DVI; | |
5076 | break; | |
5077 | default: | |
5078 | return -ENOSYS; | |
78f81cc4 BD |
5079 | } |
5080 | ||
5081 | return status; | |
5082 | } | |
1da177e4 | 5083 | |
83f34724 | 5084 | static int video_outputsw_set(int status) |
78f81cc4 | 5085 | { |
83f34724 HMH |
5086 | int autosw; |
5087 | int res = 0; | |
5088 | ||
5089 | switch (video_supported) { | |
5090 | case TPACPI_VIDEO_570: | |
5091 | res = acpi_evalf(NULL, NULL, | |
5092 | "\\_SB.PHS2", "vdd", | |
5093 | TP_ACPI_VIDEO_570_PHS2CMD, | |
5094 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
5095 | break; | |
5096 | case TPACPI_VIDEO_770: | |
5097 | autosw = video_autosw_get(); | |
5098 | if (autosw < 0) | |
5099 | return autosw; | |
1da177e4 | 5100 | |
83f34724 HMH |
5101 | res = video_autosw_set(1); |
5102 | if (res) | |
5103 | return res; | |
5104 | res = acpi_evalf(vid_handle, NULL, | |
5105 | "ASWT", "vdd", status * 0x100, 0); | |
5106 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5107 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
5108 | return -EIO; |
5109 | } | |
5110 | break; | |
5111 | case TPACPI_VIDEO_NEW: | |
5112 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 5113 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
5114 | break; |
5115 | default: | |
5116 | return -ENOSYS; | |
5117 | } | |
1da177e4 | 5118 | |
72a979f0 | 5119 | return (res) ? 0 : -EIO; |
1da177e4 LT |
5120 | } |
5121 | ||
83f34724 | 5122 | static int video_autosw_get(void) |
78f81cc4 | 5123 | { |
83f34724 | 5124 | int autosw = 0; |
78f81cc4 | 5125 | |
83f34724 HMH |
5126 | switch (video_supported) { |
5127 | case TPACPI_VIDEO_570: | |
5128 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
5129 | return -EIO; | |
5130 | break; | |
5131 | case TPACPI_VIDEO_770: | |
5132 | case TPACPI_VIDEO_NEW: | |
5133 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
5134 | return -EIO; | |
5135 | break; | |
5136 | default: | |
5137 | return -ENOSYS; | |
5138 | } | |
78f81cc4 | 5139 | |
83f34724 | 5140 | return autosw & 1; |
78f81cc4 BD |
5141 | } |
5142 | ||
83f34724 | 5143 | static int video_autosw_set(int enable) |
78f81cc4 | 5144 | { |
72a979f0 | 5145 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
5146 | return -EIO; |
5147 | return 0; | |
78f81cc4 BD |
5148 | } |
5149 | ||
83f34724 | 5150 | static int video_outputsw_cycle(void) |
78f81cc4 | 5151 | { |
83f34724 HMH |
5152 | int autosw = video_autosw_get(); |
5153 | int res; | |
78f81cc4 | 5154 | |
83f34724 HMH |
5155 | if (autosw < 0) |
5156 | return autosw; | |
78f81cc4 | 5157 | |
83f34724 HMH |
5158 | switch (video_supported) { |
5159 | case TPACPI_VIDEO_570: | |
5160 | res = video_autosw_set(1); | |
5161 | if (res) | |
5162 | return res; | |
5163 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
5164 | break; | |
5165 | case TPACPI_VIDEO_770: | |
5166 | case TPACPI_VIDEO_NEW: | |
5167 | res = video_autosw_set(1); | |
5168 | if (res) | |
5169 | return res; | |
5170 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
5171 | break; | |
5172 | default: | |
5173 | return -ENOSYS; | |
5174 | } | |
5175 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5176 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 5177 | return -EIO; |
78f81cc4 BD |
5178 | } |
5179 | ||
72a979f0 | 5180 | return (res) ? 0 : -EIO; |
83f34724 HMH |
5181 | } |
5182 | ||
5183 | static int video_expand_toggle(void) | |
5184 | { | |
5185 | switch (video_supported) { | |
5186 | case TPACPI_VIDEO_570: | |
72a979f0 | 5187 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
5188 | 0 : -EIO; |
5189 | case TPACPI_VIDEO_770: | |
72a979f0 | 5190 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
5191 | 0 : -EIO; |
5192 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 5193 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
5194 | 0 : -EIO; |
5195 | default: | |
5196 | return -ENOSYS; | |
5197 | } | |
5198 | /* not reached */ | |
78f81cc4 BD |
5199 | } |
5200 | ||
887965e6 | 5201 | static int video_read(struct seq_file *m) |
56b6aeb0 | 5202 | { |
83f34724 | 5203 | int status, autosw; |
56b6aeb0 | 5204 | |
83f34724 | 5205 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
5206 | seq_printf(m, "status:\t\tnot supported\n"); |
5207 | return 0; | |
56b6aeb0 HMH |
5208 | } |
5209 | ||
b525c06c HMH |
5210 | /* Even reads can crash X.org, so... */ |
5211 | if (!capable(CAP_SYS_ADMIN)) | |
5212 | return -EPERM; | |
5213 | ||
83f34724 HMH |
5214 | status = video_outputsw_get(); |
5215 | if (status < 0) | |
5216 | return status; | |
5217 | ||
5218 | autosw = video_autosw_get(); | |
5219 | if (autosw < 0) | |
5220 | return autosw; | |
5221 | ||
887965e6 AD |
5222 | seq_printf(m, "status:\t\tsupported\n"); |
5223 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
5224 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 5225 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5226 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
5227 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
5228 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
5229 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 5230 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5231 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
5232 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
5233 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 5234 | |
887965e6 | 5235 | return 0; |
56b6aeb0 HMH |
5236 | } |
5237 | ||
78f81cc4 | 5238 | static int video_write(char *buf) |
1da177e4 LT |
5239 | { |
5240 | char *cmd; | |
5241 | int enable, disable, status; | |
83f34724 | 5242 | int res; |
1da177e4 | 5243 | |
83f34724 | 5244 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
5245 | return -ENODEV; |
5246 | ||
b525c06c HMH |
5247 | /* Even reads can crash X.org, let alone writes... */ |
5248 | if (!capable(CAP_SYS_ADMIN)) | |
5249 | return -EPERM; | |
5250 | ||
83f34724 HMH |
5251 | enable = 0; |
5252 | disable = 0; | |
1da177e4 | 5253 | |
be51bd45 | 5254 | while ((cmd = strsep(&buf, ","))) { |
1da177e4 | 5255 | if (strlencmp(cmd, "lcd_enable") == 0) { |
83f34724 | 5256 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5257 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 5258 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5259 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 5260 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 5261 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 5262 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 5263 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5264 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 5265 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 5266 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5267 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 5268 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 5269 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
5270 | res = video_autosw_set(1); |
5271 | if (res) | |
5272 | return res; | |
1da177e4 | 5273 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
5274 | res = video_autosw_set(0); |
5275 | if (res) | |
5276 | return res; | |
1da177e4 | 5277 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
5278 | res = video_outputsw_cycle(); |
5279 | if (res) | |
5280 | return res; | |
1da177e4 | 5281 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
5282 | res = video_expand_toggle(); |
5283 | if (res) | |
5284 | return res; | |
1da177e4 LT |
5285 | } else |
5286 | return -EINVAL; | |
5287 | } | |
5288 | ||
5289 | if (enable || disable) { | |
83f34724 HMH |
5290 | status = video_outputsw_get(); |
5291 | if (status < 0) | |
5292 | return status; | |
5293 | res = video_outputsw_set((status & ~disable) | enable); | |
5294 | if (res) | |
5295 | return res; | |
1da177e4 LT |
5296 | } |
5297 | ||
5298 | return 0; | |
5299 | } | |
5300 | ||
a5763f22 HMH |
5301 | static struct ibm_struct video_driver_data = { |
5302 | .name = "video", | |
5303 | .read = video_read, | |
5304 | .write = video_write, | |
5305 | .exit = video_exit, | |
5306 | }; | |
5307 | ||
d7c1d17d HMH |
5308 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
5309 | ||
bb28f3d5 PR |
5310 | /************************************************************************* |
5311 | * Keyboard backlight subdriver | |
5312 | */ | |
5313 | ||
c685e20d HG |
5314 | static enum led_brightness kbdlight_brightness; |
5315 | static DEFINE_MUTEX(kbdlight_mutex); | |
5316 | ||
bb28f3d5 PR |
5317 | static int kbdlight_set_level(int level) |
5318 | { | |
c685e20d HG |
5319 | int ret = 0; |
5320 | ||
bb28f3d5 PR |
5321 | if (!hkey_handle) |
5322 | return -ENXIO; | |
5323 | ||
c685e20d HG |
5324 | mutex_lock(&kbdlight_mutex); |
5325 | ||
bb28f3d5 | 5326 | if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) |
c685e20d HG |
5327 | ret = -EIO; |
5328 | else | |
5329 | kbdlight_brightness = level; | |
bb28f3d5 | 5330 | |
c685e20d HG |
5331 | mutex_unlock(&kbdlight_mutex); |
5332 | ||
5333 | return ret; | |
bb28f3d5 PR |
5334 | } |
5335 | ||
5336 | static int kbdlight_get_level(void) | |
5337 | { | |
5338 | int status = 0; | |
5339 | ||
5340 | if (!hkey_handle) | |
5341 | return -ENXIO; | |
5342 | ||
5343 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) | |
5344 | return -EIO; | |
5345 | ||
5346 | if (status < 0) | |
5347 | return status; | |
5348 | ||
5349 | return status & 0x3; | |
5350 | } | |
5351 | ||
5352 | static bool kbdlight_is_supported(void) | |
5353 | { | |
5354 | int status = 0; | |
5355 | ||
5356 | if (!hkey_handle) | |
5357 | return false; | |
5358 | ||
5359 | if (!acpi_has_method(hkey_handle, "MLCG")) { | |
5360 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); | |
5361 | return false; | |
5362 | } | |
5363 | ||
5364 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { | |
5365 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); | |
5366 | return false; | |
5367 | } | |
5368 | ||
5369 | if (status < 0) { | |
5370 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); | |
5371 | return false; | |
5372 | } | |
5373 | ||
5374 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); | |
5375 | /* | |
5376 | * Guessed test for keyboard backlight: | |
5377 | * | |
5378 | * Machines with backlight keyboard return: | |
5379 | * b010100000010000000XX - ThinkPad X1 Carbon 3rd | |
5380 | * b110100010010000000XX - ThinkPad x230 | |
5381 | * b010100000010000000XX - ThinkPad x240 | |
5382 | * b010100000010000000XX - ThinkPad W541 | |
5383 | * (XX is current backlight level) | |
5384 | * | |
5385 | * Machines without backlight keyboard return: | |
5386 | * b10100001000000000000 - ThinkPad x230 | |
5387 | * b10110001000000000000 - ThinkPad E430 | |
5388 | * b00000000000000000000 - ThinkPad E450 | |
5389 | * | |
5390 | * Candidate BITs for detection test (XOR): | |
5391 | * b01000000001000000000 | |
5392 | * ^ | |
5393 | */ | |
5394 | return status & BIT(9); | |
5395 | } | |
5396 | ||
86ec0c2c | 5397 | static int kbdlight_sysfs_set(struct led_classdev *led_cdev, |
bb28f3d5 PR |
5398 | enum led_brightness brightness) |
5399 | { | |
86ec0c2c | 5400 | return kbdlight_set_level(brightness); |
bb28f3d5 PR |
5401 | } |
5402 | ||
5403 | static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) | |
5404 | { | |
5405 | int level; | |
5406 | ||
5407 | level = kbdlight_get_level(); | |
5408 | if (level < 0) | |
5409 | return 0; | |
5410 | ||
5411 | return level; | |
5412 | } | |
5413 | ||
5414 | static struct tpacpi_led_classdev tpacpi_led_kbdlight = { | |
5415 | .led_classdev = { | |
5416 | .name = "tpacpi::kbd_backlight", | |
5417 | .max_brightness = 2, | |
c685e20d | 5418 | .flags = LED_BRIGHT_HW_CHANGED, |
86ec0c2c | 5419 | .brightness_set_blocking = &kbdlight_sysfs_set, |
bb28f3d5 | 5420 | .brightness_get = &kbdlight_sysfs_get, |
bb28f3d5 PR |
5421 | } |
5422 | }; | |
5423 | ||
5424 | static int __init kbdlight_init(struct ibm_init_struct *iibm) | |
5425 | { | |
5426 | int rc; | |
5427 | ||
5428 | vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); | |
5429 | ||
5430 | TPACPI_ACPIHANDLE_INIT(hkey); | |
bb28f3d5 PR |
5431 | |
5432 | if (!kbdlight_is_supported()) { | |
5433 | tp_features.kbdlight = 0; | |
5434 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); | |
5435 | return 1; | |
5436 | } | |
5437 | ||
c685e20d | 5438 | kbdlight_brightness = kbdlight_sysfs_get(NULL); |
bb28f3d5 PR |
5439 | tp_features.kbdlight = 1; |
5440 | ||
5441 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5442 | &tpacpi_led_kbdlight.led_classdev); | |
5443 | if (rc < 0) { | |
5444 | tp_features.kbdlight = 0; | |
5445 | return rc; | |
5446 | } | |
5447 | ||
c685e20d HG |
5448 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
5449 | TP_ACPI_HKEY_KBD_LIGHT_MASK); | |
bb28f3d5 PR |
5450 | return 0; |
5451 | } | |
5452 | ||
5453 | static void kbdlight_exit(void) | |
5454 | { | |
41f80046 | 5455 | led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); |
bb28f3d5 PR |
5456 | } |
5457 | ||
afcedebc MTT |
5458 | static int kbdlight_set_level_and_update(int level) |
5459 | { | |
5460 | int ret; | |
5461 | struct led_classdev *led_cdev; | |
5462 | ||
5463 | ret = kbdlight_set_level(level); | |
5464 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5465 | ||
5466 | if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) | |
5467 | led_cdev->brightness = level; | |
5468 | ||
5469 | return ret; | |
5470 | } | |
5471 | ||
bb28f3d5 PR |
5472 | static int kbdlight_read(struct seq_file *m) |
5473 | { | |
5474 | int level; | |
5475 | ||
5476 | if (!tp_features.kbdlight) { | |
5477 | seq_printf(m, "status:\t\tnot supported\n"); | |
5478 | } else { | |
5479 | level = kbdlight_get_level(); | |
5480 | if (level < 0) | |
5481 | seq_printf(m, "status:\t\terror %d\n", level); | |
5482 | else | |
5483 | seq_printf(m, "status:\t\t%d\n", level); | |
5484 | seq_printf(m, "commands:\t0, 1, 2\n"); | |
5485 | } | |
5486 | ||
5487 | return 0; | |
5488 | } | |
5489 | ||
5490 | static int kbdlight_write(char *buf) | |
5491 | { | |
5492 | char *cmd; | |
466f4697 | 5493 | int res, level = -EINVAL; |
bb28f3d5 PR |
5494 | |
5495 | if (!tp_features.kbdlight) | |
5496 | return -ENODEV; | |
5497 | ||
be51bd45 | 5498 | while ((cmd = strsep(&buf, ","))) { |
466f4697 AS |
5499 | res = kstrtoint(cmd, 10, &level); |
5500 | if (res < 0) | |
5501 | return res; | |
bb28f3d5 PR |
5502 | } |
5503 | ||
466f4697 | 5504 | if (level >= 3 || level < 0) |
bb28f3d5 PR |
5505 | return -EINVAL; |
5506 | ||
afcedebc MTT |
5507 | return kbdlight_set_level_and_update(level); |
5508 | } | |
5509 | ||
5510 | static void kbdlight_suspend(void) | |
5511 | { | |
5512 | struct led_classdev *led_cdev; | |
5513 | ||
5514 | if (!tp_features.kbdlight) | |
5515 | return; | |
5516 | ||
5517 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5518 | led_update_brightness(led_cdev); | |
5519 | led_classdev_suspend(led_cdev); | |
5520 | } | |
5521 | ||
5522 | static void kbdlight_resume(void) | |
5523 | { | |
5524 | if (!tp_features.kbdlight) | |
5525 | return; | |
5526 | ||
5527 | led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5528 | } |
5529 | ||
5530 | static struct ibm_struct kbdlight_driver_data = { | |
5531 | .name = "kbdlight", | |
5532 | .read = kbdlight_read, | |
5533 | .write = kbdlight_write, | |
afcedebc MTT |
5534 | .suspend = kbdlight_suspend, |
5535 | .resume = kbdlight_resume, | |
bb28f3d5 PR |
5536 | .exit = kbdlight_exit, |
5537 | }; | |
5538 | ||
56b6aeb0 HMH |
5539 | /************************************************************************* |
5540 | * Light (thinklight) subdriver | |
5541 | */ | |
1da177e4 | 5542 | |
e0c7dfe7 HMH |
5543 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
5544 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 5545 | |
4fa6811b HMH |
5546 | static int light_get_status(void) |
5547 | { | |
5548 | int status = 0; | |
5549 | ||
5550 | if (tp_features.light_status) { | |
5551 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5552 | return -EIO; | |
5553 | return (!!status); | |
5554 | } | |
5555 | ||
5556 | return -ENXIO; | |
5557 | } | |
5558 | ||
5559 | static int light_set_status(int status) | |
5560 | { | |
5561 | int rc; | |
5562 | ||
5563 | if (tp_features.light) { | |
5564 | if (cmos_handle) { | |
5565 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5566 | (status) ? |
4fa6811b HMH |
5567 | TP_CMOS_THINKLIGHT_ON : |
5568 | TP_CMOS_THINKLIGHT_OFF); | |
5569 | } else { | |
5570 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5571 | (status) ? 1 : 0); |
4fa6811b | 5572 | } |
72a979f0 | 5573 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5574 | } |
5575 | ||
5576 | return -ENXIO; | |
5577 | } | |
5578 | ||
86ec0c2c | 5579 | static int light_sysfs_set(struct led_classdev *led_cdev, |
e306501d HMH |
5580 | enum led_brightness brightness) |
5581 | { | |
86ec0c2c HG |
5582 | return light_set_status((brightness != LED_OFF) ? |
5583 | TPACPI_LED_ON : TPACPI_LED_OFF); | |
e306501d HMH |
5584 | } |
5585 | ||
5586 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5587 | { | |
72a979f0 | 5588 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5589 | } |
5590 | ||
5591 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5592 | .led_classdev = { | |
5593 | .name = "tpacpi::thinklight", | |
86ec0c2c | 5594 | .brightness_set_blocking = &light_sysfs_set, |
e306501d HMH |
5595 | .brightness_get = &light_sysfs_get, |
5596 | } | |
5597 | }; | |
5598 | ||
a5763f22 | 5599 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5600 | { |
9c0a76e1 | 5601 | int rc; |
e306501d | 5602 | |
fe08bc4b HMH |
5603 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5604 | ||
e28393c0 HMH |
5605 | if (tpacpi_is_ibm()) { |
5606 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5607 | TPACPI_ACPIHANDLE_INIT(lght); | |
5608 | } | |
e0c7dfe7 | 5609 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5610 | |
78f81cc4 | 5611 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5612 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5613 | |
d8fd94d9 | 5614 | if (tp_features.light) |
78f81cc4 BD |
5615 | /* light status not supported on |
5616 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5617 | tp_features.light_status = |
5618 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5619 | |
9c0a76e1 HMH |
5620 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5621 | str_supported(tp_features.light), | |
5622 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5623 | |
9c0a76e1 HMH |
5624 | if (!tp_features.light) |
5625 | return 1; | |
5626 | ||
5627 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5628 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5629 | |
5630 | if (rc < 0) { | |
5631 | tp_features.light = 0; | |
5632 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5633 | } else { |
5634 | rc = 0; | |
e306501d | 5635 | } |
9c0a76e1 | 5636 | |
e306501d HMH |
5637 | return rc; |
5638 | } | |
5639 | ||
5640 | static void light_exit(void) | |
5641 | { | |
5642 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
1da177e4 LT |
5643 | } |
5644 | ||
887965e6 | 5645 | static int light_read(struct seq_file *m) |
1da177e4 | 5646 | { |
4fa6811b | 5647 | int status; |
1da177e4 | 5648 | |
d8fd94d9 | 5649 | if (!tp_features.light) { |
887965e6 | 5650 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5651 | } else if (!tp_features.light_status) { |
887965e6 AD |
5652 | seq_printf(m, "status:\t\tunknown\n"); |
5653 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5654 | } else { |
4fa6811b HMH |
5655 | status = light_get_status(); |
5656 | if (status < 0) | |
5657 | return status; | |
887965e6 AD |
5658 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5659 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5660 | } |
1da177e4 | 5661 | |
887965e6 | 5662 | return 0; |
1da177e4 LT |
5663 | } |
5664 | ||
78f81cc4 | 5665 | static int light_write(char *buf) |
1da177e4 | 5666 | { |
1da177e4 | 5667 | char *cmd; |
4fa6811b | 5668 | int newstatus = 0; |
78f81cc4 | 5669 | |
d8fd94d9 | 5670 | if (!tp_features.light) |
78f81cc4 BD |
5671 | return -ENODEV; |
5672 | ||
be51bd45 | 5673 | while ((cmd = strsep(&buf, ","))) { |
1da177e4 | 5674 | if (strlencmp(cmd, "on") == 0) { |
4fa6811b | 5675 | newstatus = 1; |
1da177e4 | 5676 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5677 | newstatus = 0; |
1da177e4 LT |
5678 | } else |
5679 | return -EINVAL; | |
1da177e4 LT |
5680 | } |
5681 | ||
4fa6811b | 5682 | return light_set_status(newstatus); |
1da177e4 LT |
5683 | } |
5684 | ||
a5763f22 HMH |
5685 | static struct ibm_struct light_driver_data = { |
5686 | .name = "light", | |
5687 | .read = light_read, | |
5688 | .write = light_write, | |
e306501d | 5689 | .exit = light_exit, |
a5763f22 HMH |
5690 | }; |
5691 | ||
56b6aeb0 HMH |
5692 | /************************************************************************* |
5693 | * CMOS subdriver | |
5694 | */ | |
5695 | ||
b616004c HMH |
5696 | /* sysfs cmos_command -------------------------------------------------- */ |
5697 | static ssize_t cmos_command_store(struct device *dev, | |
5698 | struct device_attribute *attr, | |
5699 | const char *buf, size_t count) | |
5700 | { | |
5701 | unsigned long cmos_cmd; | |
5702 | int res; | |
5703 | ||
5704 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5705 | return -EINVAL; | |
5706 | ||
5707 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5708 | return (res) ? res : count; |
b616004c HMH |
5709 | } |
5710 | ||
b4dd04ac | 5711 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5712 | |
5713 | /* --------------------------------------------------------------------- */ | |
5714 | ||
a5763f22 | 5715 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5716 | { |
b616004c HMH |
5717 | int res; |
5718 | ||
fe08bc4b HMH |
5719 | vdbg_printk(TPACPI_DBG_INIT, |
5720 | "initializing cmos commands subdriver\n"); | |
5721 | ||
e0c7dfe7 | 5722 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5723 | |
fe08bc4b HMH |
5724 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5725 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5726 | |
5727 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5728 | if (res) | |
5729 | return res; | |
5730 | ||
72a979f0 | 5731 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5732 | } |
5733 | ||
b616004c HMH |
5734 | static void cmos_exit(void) |
5735 | { | |
5736 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5737 | } | |
5738 | ||
887965e6 | 5739 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5740 | { |
78f81cc4 BD |
5741 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5742 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5743 | if (!cmos_handle) |
887965e6 | 5744 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5745 | else { |
887965e6 AD |
5746 | seq_printf(m, "status:\t\tsupported\n"); |
5747 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5748 | } |
5749 | ||
887965e6 | 5750 | return 0; |
1da177e4 LT |
5751 | } |
5752 | ||
78f81cc4 | 5753 | static int cmos_write(char *buf) |
1da177e4 LT |
5754 | { |
5755 | char *cmd; | |
c9bea99c | 5756 | int cmos_cmd, res; |
1da177e4 | 5757 | |
be51bd45 | 5758 | while ((cmd = strsep(&buf, ","))) { |
78f81cc4 BD |
5759 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5760 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5761 | /* cmos_cmd set */ |
5762 | } else | |
5763 | return -EINVAL; | |
5764 | ||
c9bea99c HMH |
5765 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5766 | if (res) | |
5767 | return res; | |
1da177e4 LT |
5768 | } |
5769 | ||
5770 | return 0; | |
78f81cc4 BD |
5771 | } |
5772 | ||
a5763f22 HMH |
5773 | static struct ibm_struct cmos_driver_data = { |
5774 | .name = "cmos", | |
5775 | .read = cmos_read, | |
5776 | .write = cmos_write, | |
b616004c | 5777 | .exit = cmos_exit, |
a5763f22 | 5778 | }; |
56b6aeb0 HMH |
5779 | |
5780 | /************************************************************************* | |
5781 | * LED subdriver | |
5782 | */ | |
5783 | ||
f74a27d4 HMH |
5784 | enum led_access_mode { |
5785 | TPACPI_LED_NONE = 0, | |
5786 | TPACPI_LED_570, /* 570 */ | |
5787 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5788 | TPACPI_LED_NEW, /* all others */ | |
5789 | }; | |
5790 | ||
5791 | enum { /* For TPACPI_LED_OLD */ | |
5792 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5793 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5794 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5795 | }; | |
5796 | ||
9a8e1738 | 5797 | static enum led_access_mode led_supported; |
78f81cc4 | 5798 | |
2cbb5c8f | 5799 | static acpi_handle led_handle; |
56b6aeb0 | 5800 | |
f21179a4 | 5801 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5802 | static struct tpacpi_led_classdev *tpacpi_leds; |
5803 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5804 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5805 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5806 | "tpacpi::power", | |
5807 | "tpacpi:orange:batt", | |
5808 | "tpacpi:green:batt", | |
5809 | "tpacpi::dock_active", | |
5810 | "tpacpi::bay_active", | |
5811 | "tpacpi::dock_batt", | |
5812 | "tpacpi::unknown_led", | |
5813 | "tpacpi::standby", | |
f21179a4 HMH |
5814 | "tpacpi::dock_status1", |
5815 | "tpacpi::dock_status2", | |
5816 | "tpacpi::unknown_led2", | |
5817 | "tpacpi::unknown_led3", | |
5818 | "tpacpi::thinkvantage", | |
af116101 | 5819 | }; |
f21179a4 | 5820 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5821 | |
5822 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5823 | { | |
5824 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5825 | return false; | |
5826 | #else | |
f21179a4 | 5827 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5828 | #endif |
5829 | } | |
af116101 | 5830 | |
24e45bbe | 5831 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5832 | { |
5833 | int status; | |
af116101 | 5834 | enum led_status_t led_s; |
4fa6811b HMH |
5835 | |
5836 | switch (led_supported) { | |
5837 | case TPACPI_LED_570: | |
5838 | if (!acpi_evalf(ec_handle, | |
5839 | &status, "GLED", "dd", 1 << led)) | |
5840 | return -EIO; | |
72a979f0 | 5841 | led_s = (status == 0) ? |
4fa6811b | 5842 | TPACPI_LED_OFF : |
72a979f0 | 5843 | ((status == 1) ? |
4fa6811b HMH |
5844 | TPACPI_LED_ON : |
5845 | TPACPI_LED_BLINK); | |
af116101 HMH |
5846 | tpacpi_led_state_cache[led] = led_s; |
5847 | return led_s; | |
4fa6811b HMH |
5848 | default: |
5849 | return -ENXIO; | |
5850 | } | |
5851 | ||
5852 | /* not reached */ | |
5853 | } | |
5854 | ||
24e45bbe HMH |
5855 | static int led_set_status(const unsigned int led, |
5856 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5857 | { |
5858 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5859 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5860 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5861 | |
5862 | int rc = 0; | |
5863 | ||
5864 | switch (led_supported) { | |
5865 | case TPACPI_LED_570: | |
24e45bbe | 5866 | /* 570 */ |
a4d5effc | 5867 | if (unlikely(led > 7)) |
24e45bbe | 5868 | return -EINVAL; |
a4d5effc HMH |
5869 | if (unlikely(tpacpi_is_led_restricted(led))) |
5870 | return -EPERM; | |
24e45bbe HMH |
5871 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5872 | (1 << led), led_sled_arg1[ledstatus])) | |
aac3311c | 5873 | return -EIO; |
24e45bbe | 5874 | break; |
4fa6811b | 5875 | case TPACPI_LED_OLD: |
24e45bbe | 5876 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5877 | if (unlikely(led > 7)) |
24e45bbe | 5878 | return -EINVAL; |
a4d5effc HMH |
5879 | if (unlikely(tpacpi_is_led_restricted(led))) |
5880 | return -EPERM; | |
24e45bbe HMH |
5881 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5882 | if (rc >= 0) | |
5883 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5884 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5885 | if (rc >= 0) | |
5886 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5887 | (ledstatus != TPACPI_LED_OFF) << led); | |
5888 | break; | |
4fa6811b | 5889 | case TPACPI_LED_NEW: |
24e45bbe | 5890 | /* all others */ |
a4d5effc HMH |
5891 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5892 | return -EINVAL; | |
5893 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5894 | return -EPERM; | |
24e45bbe HMH |
5895 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5896 | led, led_led_arg1[ledstatus])) | |
aac3311c | 5897 | return -EIO; |
24e45bbe | 5898 | break; |
4fa6811b | 5899 | default: |
aac3311c | 5900 | return -ENXIO; |
4fa6811b HMH |
5901 | } |
5902 | ||
af116101 HMH |
5903 | if (!rc) |
5904 | tpacpi_led_state_cache[led] = ledstatus; | |
5905 | ||
5906 | return rc; | |
5907 | } | |
5908 | ||
86ec0c2c | 5909 | static int led_sysfs_set(struct led_classdev *led_cdev, |
af116101 HMH |
5910 | enum led_brightness brightness) |
5911 | { | |
5912 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5913 | struct tpacpi_led_classdev, led_classdev); | |
86ec0c2c | 5914 | enum led_status_t new_state; |
af116101 | 5915 | |
75bd3bf2 | 5916 | if (brightness == LED_OFF) |
86ec0c2c | 5917 | new_state = TPACPI_LED_OFF; |
75bd3bf2 | 5918 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) |
86ec0c2c | 5919 | new_state = TPACPI_LED_ON; |
75bd3bf2 | 5920 | else |
86ec0c2c | 5921 | new_state = TPACPI_LED_BLINK; |
75bd3bf2 | 5922 | |
86ec0c2c | 5923 | return led_set_status(data->led, new_state); |
af116101 HMH |
5924 | } |
5925 | ||
5926 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5927 | unsigned long *delay_on, unsigned long *delay_off) | |
5928 | { | |
5929 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5930 | struct tpacpi_led_classdev, led_classdev); | |
5931 | ||
5932 | /* Can we choose the flash rate? */ | |
5933 | if (*delay_on == 0 && *delay_off == 0) { | |
5934 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5935 | *delay_on = 500; /* ms */ | |
5936 | *delay_off = 500; /* ms */ | |
5937 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5938 | return -EINVAL; | |
5939 | ||
86ec0c2c | 5940 | return led_set_status(data->led, TPACPI_LED_BLINK); |
af116101 HMH |
5941 | } |
5942 | ||
5943 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5944 | { | |
5945 | int rc; | |
5946 | ||
5947 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5948 | struct tpacpi_led_classdev, led_classdev); | |
5949 | ||
5950 | rc = led_get_status(data->led); | |
5951 | ||
5952 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5953 | rc = LED_OFF; /* no error handling in led class :( */ | |
5954 | else | |
5955 | rc = LED_FULL; | |
5956 | ||
4fa6811b HMH |
5957 | return rc; |
5958 | } | |
5959 | ||
af116101 HMH |
5960 | static void led_exit(void) |
5961 | { | |
5962 | unsigned int i; | |
5963 | ||
41f80046 AS |
5964 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) |
5965 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
af116101 HMH |
5966 | |
5967 | kfree(tpacpi_leds); | |
af116101 HMH |
5968 | } |
5969 | ||
a4d5effc HMH |
5970 | static int __init tpacpi_init_led(unsigned int led) |
5971 | { | |
f21179a4 HMH |
5972 | /* LEDs with no name don't get registered */ |
5973 | if (!tpacpi_led_names[led]) | |
5974 | return 0; | |
5975 | ||
86ec0c2c | 5976 | tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set; |
a4d5effc HMH |
5977 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; |
5978 | if (led_supported == TPACPI_LED_570) | |
41f80046 | 5979 | tpacpi_leds[led].led_classdev.brightness_get = &led_sysfs_get; |
a4d5effc HMH |
5980 | |
5981 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
41f80046 | 5982 | tpacpi_leds[led].led = led; |
a4d5effc | 5983 | |
41f80046 | 5984 | return led_classdev_register(&tpacpi_pdev->dev, &tpacpi_leds[led].led_classdev); |
a4d5effc HMH |
5985 | } |
5986 | ||
f21179a4 HMH |
5987 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5988 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5989 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5990 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5991 | ||
5992 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5993 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5994 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5995 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5996 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5997 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5998 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5999 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
6000 | ||
6001 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
6002 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
6003 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
6004 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
6005 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
6006 | ||
6007 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
6008 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
6009 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
6010 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
6011 | ||
6012 | /* (1) - may have excess leds enabled on MSB */ | |
6013 | ||
6014 | /* Defaults (order matters, keep last, don't reorder!) */ | |
6015 | { /* Lenovo */ | |
6016 | .vendor = PCI_VENDOR_ID_LENOVO, | |
6017 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
6018 | .quirks = 0x1fffU, | |
6019 | }, | |
6020 | { /* IBM ThinkPads with no EC version string */ | |
6021 | .vendor = PCI_VENDOR_ID_IBM, | |
6022 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
6023 | .quirks = 0x00ffU, | |
6024 | }, | |
6025 | { /* IBM ThinkPads with EC version string */ | |
6026 | .vendor = PCI_VENDOR_ID_IBM, | |
6027 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
6028 | .quirks = 0x00bfU, | |
6029 | }, | |
6030 | }; | |
6031 | ||
2cbb5c8f HMH |
6032 | static enum led_access_mode __init led_init_detect_mode(void) |
6033 | { | |
6034 | acpi_status status; | |
6035 | ||
6036 | if (tpacpi_is_ibm()) { | |
6037 | /* 570 */ | |
6038 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
6039 | if (ACPI_SUCCESS(status)) | |
6040 | return TPACPI_LED_570; | |
6041 | ||
6042 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
6043 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
6044 | if (ACPI_SUCCESS(status)) | |
6045 | return TPACPI_LED_OLD; | |
6046 | } | |
6047 | ||
6048 | /* most others */ | |
6049 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
6050 | if (ACPI_SUCCESS(status)) | |
6051 | return TPACPI_LED_NEW; | |
6052 | ||
6053 | /* R30, R31, and unknown firmwares */ | |
6054 | led_handle = NULL; | |
6055 | return TPACPI_LED_NONE; | |
6056 | } | |
6057 | ||
a5763f22 | 6058 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6059 | { |
af116101 HMH |
6060 | unsigned int i; |
6061 | int rc; | |
f21179a4 | 6062 | unsigned long useful_leds; |
af116101 | 6063 | |
fe08bc4b HMH |
6064 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
6065 | ||
2cbb5c8f | 6066 | led_supported = led_init_detect_mode(); |
78f81cc4 | 6067 | |
fcb44e12 AL |
6068 | if (led_supported != TPACPI_LED_NONE) { |
6069 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
6070 | ARRAY_SIZE(led_useful_qtable)); | |
6071 | ||
6072 | if (!useful_leds) { | |
6073 | led_handle = NULL; | |
6074 | led_supported = TPACPI_LED_NONE; | |
6075 | } | |
6076 | } | |
6077 | ||
fe08bc4b HMH |
6078 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
6079 | str_supported(led_supported), led_supported); | |
6080 | ||
f21179a4 HMH |
6081 | if (led_supported == TPACPI_LED_NONE) |
6082 | return 1; | |
6083 | ||
6396bb22 | 6084 | tpacpi_leds = kcalloc(TPACPI_LED_NUMLEDS, sizeof(*tpacpi_leds), |
af116101 HMH |
6085 | GFP_KERNEL); |
6086 | if (!tpacpi_leds) { | |
0978e012 | 6087 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
6088 | return -ENOMEM; |
6089 | } | |
6090 | ||
6091 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
6092 | tpacpi_leds[i].led = -1; |
6093 | ||
41f80046 | 6094 | if (!tpacpi_is_led_restricted(i) && test_bit(i, &useful_leds)) { |
a4d5effc HMH |
6095 | rc = tpacpi_init_led(i); |
6096 | if (rc < 0) { | |
6097 | led_exit(); | |
6098 | return rc; | |
6099 | } | |
af116101 HMH |
6100 | } |
6101 | } | |
6102 | ||
a4d5effc | 6103 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
5cac62ac | 6104 | pr_notice("warning: userspace override of important firmware LEDs is enabled\n"); |
a4d5effc | 6105 | #endif |
f21179a4 | 6106 | return 0; |
78f81cc4 BD |
6107 | } |
6108 | ||
4fa6811b HMH |
6109 | #define str_led_status(s) \ |
6110 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
6111 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 6112 | |
887965e6 | 6113 | static int led_read(struct seq_file *m) |
1da177e4 | 6114 | { |
78f81cc4 | 6115 | if (!led_supported) { |
887965e6 AD |
6116 | seq_printf(m, "status:\t\tnot supported\n"); |
6117 | return 0; | |
78f81cc4 | 6118 | } |
887965e6 | 6119 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 6120 | |
efa27145 | 6121 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
6122 | /* 570 */ |
6123 | int i, status; | |
6124 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
6125 | status = led_get_status(i); |
6126 | if (status < 0) | |
78f81cc4 | 6127 | return -EIO; |
887965e6 | 6128 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 6129 | i, str_led_status(status)); |
78f81cc4 BD |
6130 | } |
6131 | } | |
6132 | ||
5cac62ac | 6133 | seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 6134 | |
887965e6 | 6135 | return 0; |
1da177e4 LT |
6136 | } |
6137 | ||
78f81cc4 | 6138 | static int led_write(char *buf) |
1da177e4 LT |
6139 | { |
6140 | char *cmd; | |
4fa6811b HMH |
6141 | int led, rc; |
6142 | enum led_status_t s; | |
78f81cc4 BD |
6143 | |
6144 | if (!led_supported) | |
6145 | return -ENODEV; | |
1da177e4 | 6146 | |
be51bd45 | 6147 | while ((cmd = strsep(&buf, ","))) { |
edf2d778 | 6148 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
6149 | return -EINVAL; |
6150 | ||
41f80046 AS |
6151 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1)) |
6152 | return -ENODEV; | |
6153 | ||
6154 | if (tpacpi_leds[led].led < 0) | |
edf2d778 AL |
6155 | return -ENODEV; |
6156 | ||
78f81cc4 | 6157 | if (strstr(cmd, "off")) { |
4fa6811b | 6158 | s = TPACPI_LED_OFF; |
1da177e4 | 6159 | } else if (strstr(cmd, "on")) { |
4fa6811b | 6160 | s = TPACPI_LED_ON; |
78f81cc4 | 6161 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 6162 | s = TPACPI_LED_BLINK; |
78f81cc4 | 6163 | } else { |
4fa6811b | 6164 | return -EINVAL; |
78f81cc4 | 6165 | } |
4fa6811b HMH |
6166 | |
6167 | rc = led_set_status(led, s); | |
6168 | if (rc < 0) | |
6169 | return rc; | |
78f81cc4 BD |
6170 | } |
6171 | ||
6172 | return 0; | |
6173 | } | |
6174 | ||
a5763f22 HMH |
6175 | static struct ibm_struct led_driver_data = { |
6176 | .name = "led", | |
6177 | .read = led_read, | |
6178 | .write = led_write, | |
af116101 | 6179 | .exit = led_exit, |
a5763f22 HMH |
6180 | }; |
6181 | ||
56b6aeb0 HMH |
6182 | /************************************************************************* |
6183 | * Beep subdriver | |
6184 | */ | |
6185 | ||
e0c7dfe7 | 6186 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 6187 | |
60201732 HMH |
6188 | #define TPACPI_BEEP_Q1 0x0001 |
6189 | ||
6190 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
6191 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
6192 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
6193 | }; | |
6194 | ||
a5763f22 | 6195 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 6196 | { |
60201732 HMH |
6197 | unsigned long quirks; |
6198 | ||
fe08bc4b HMH |
6199 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
6200 | ||
e0c7dfe7 | 6201 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 6202 | |
fe08bc4b HMH |
6203 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
6204 | str_supported(beep_handle != NULL)); | |
6205 | ||
60201732 HMH |
6206 | quirks = tpacpi_check_quirks(beep_quirk_table, |
6207 | ARRAY_SIZE(beep_quirk_table)); | |
6208 | ||
6209 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
6210 | ||
72a979f0 | 6211 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
6212 | } |
6213 | ||
887965e6 | 6214 | static int beep_read(struct seq_file *m) |
78f81cc4 | 6215 | { |
78f81cc4 | 6216 | if (!beep_handle) |
887965e6 | 6217 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 6218 | else { |
887965e6 AD |
6219 | seq_printf(m, "status:\t\tsupported\n"); |
6220 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
6221 | } |
6222 | ||
887965e6 | 6223 | return 0; |
78f81cc4 BD |
6224 | } |
6225 | ||
6226 | static int beep_write(char *buf) | |
6227 | { | |
6228 | char *cmd; | |
6229 | int beep_cmd; | |
6230 | ||
6231 | if (!beep_handle) | |
6232 | return -ENODEV; | |
6233 | ||
be51bd45 | 6234 | while ((cmd = strsep(&buf, ","))) { |
78f81cc4 BD |
6235 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && |
6236 | beep_cmd >= 0 && beep_cmd <= 17) { | |
6237 | /* beep_cmd set */ | |
6238 | } else | |
6239 | return -EINVAL; | |
60201732 HMH |
6240 | if (tp_features.beep_needs_two_args) { |
6241 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
6242 | beep_cmd, 0)) | |
6243 | return -EIO; | |
6244 | } else { | |
6245 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
6246 | beep_cmd)) | |
6247 | return -EIO; | |
6248 | } | |
78f81cc4 BD |
6249 | } |
6250 | ||
6251 | return 0; | |
6252 | } | |
6253 | ||
a5763f22 HMH |
6254 | static struct ibm_struct beep_driver_data = { |
6255 | .name = "beep", | |
6256 | .read = beep_read, | |
6257 | .write = beep_write, | |
6258 | }; | |
6259 | ||
56b6aeb0 HMH |
6260 | /************************************************************************* |
6261 | * Thermal subdriver | |
6262 | */ | |
78f81cc4 | 6263 | |
f74a27d4 HMH |
6264 | enum thermal_access_mode { |
6265 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
6266 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
6267 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
6268 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
6269 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
6270 | }; | |
6271 | ||
6272 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
6273 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
6274 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
6759e18e | 6275 | TP_EC_FUNCREV = 0xEF, /* ACPI EC Functional revision */ |
f74a27d4 | 6276 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ |
9ebd9e83 HMH |
6277 | |
6278 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
6279 | }; |
6280 | ||
9ebd9e83 | 6281 | |
f74a27d4 HMH |
6282 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
6283 | struct ibm_thermal_sensors_struct { | |
6284 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
6285 | }; | |
6286 | ||
a26f878a | 6287 | static enum thermal_access_mode thermal_read_mode; |
00cc4263 HG |
6288 | static const struct attribute_group *thermal_attr_group; |
6289 | static bool thermal_use_labels; | |
78f81cc4 | 6290 | |
b21a15f6 HMH |
6291 | /* idx is zero-based */ |
6292 | static int thermal_get_sensor(int idx, s32 *value) | |
6293 | { | |
6294 | int t; | |
6295 | s8 tmp; | |
6296 | char tmpi[5]; | |
6297 | ||
6298 | t = TP_EC_THERMAL_TMP0; | |
6299 | ||
6300 | switch (thermal_read_mode) { | |
6301 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
6302 | case TPACPI_THERMAL_TPEC_16: | |
6303 | if (idx >= 8 && idx <= 15) { | |
6304 | t = TP_EC_THERMAL_TMP8; | |
6305 | idx -= 8; | |
6306 | } | |
b21a15f6 | 6307 | #endif |
df561f66 | 6308 | fallthrough; |
b21a15f6 HMH |
6309 | case TPACPI_THERMAL_TPEC_8: |
6310 | if (idx <= 7) { | |
6311 | if (!acpi_ec_read(t + idx, &tmp)) | |
6312 | return -EIO; | |
6313 | *value = tmp * 1000; | |
6314 | return 0; | |
6315 | } | |
6316 | break; | |
6317 | ||
6318 | case TPACPI_THERMAL_ACPI_UPDT: | |
6319 | if (idx <= 7) { | |
6320 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6321 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
6322 | return -EIO; | |
6323 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6324 | return -EIO; | |
6325 | *value = (t - 2732) * 100; | |
6326 | return 0; | |
6327 | } | |
6328 | break; | |
6329 | ||
6330 | case TPACPI_THERMAL_ACPI_TMP07: | |
6331 | if (idx <= 7) { | |
6332 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6333 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6334 | return -EIO; | |
6335 | if (t > 127 || t < -127) | |
6336 | t = TP_EC_THERMAL_TMP_NA; | |
6337 | *value = t * 1000; | |
6338 | return 0; | |
6339 | } | |
6340 | break; | |
6341 | ||
6342 | case TPACPI_THERMAL_NONE: | |
6343 | default: | |
6344 | return -ENOSYS; | |
6345 | } | |
6346 | ||
6347 | return -EINVAL; | |
6348 | } | |
6349 | ||
6350 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
6351 | { | |
6352 | int res, i; | |
6353 | int n; | |
6354 | ||
6355 | n = 8; | |
6356 | i = 0; | |
6357 | ||
6358 | if (!s) | |
6359 | return -EINVAL; | |
6360 | ||
6361 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
6362 | n = 16; | |
6363 | ||
35ff8b9f | 6364 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
6365 | res = thermal_get_sensor(i, &s->temp[i]); |
6366 | if (res) | |
6367 | return res; | |
6368 | } | |
6369 | ||
6370 | return n; | |
6371 | } | |
f74a27d4 | 6372 | |
9ebd9e83 HMH |
6373 | static void thermal_dump_all_sensors(void) |
6374 | { | |
6375 | int n, i; | |
6376 | struct ibm_thermal_sensors_struct t; | |
6377 | ||
6378 | n = thermal_get_sensors(&t); | |
6379 | if (n <= 0) | |
6380 | return; | |
6381 | ||
0978e012 | 6382 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
6383 | |
6384 | for (i = 0; i < n; i++) { | |
6385 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 6386 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 6387 | else |
0978e012 | 6388 | pr_cont(" N/A"); |
9ebd9e83 HMH |
6389 | } |
6390 | ||
0978e012 | 6391 | pr_cont("\n"); |
9ebd9e83 HMH |
6392 | } |
6393 | ||
2c37aa4e HMH |
6394 | /* sysfs temp##_input -------------------------------------------------- */ |
6395 | ||
6396 | static ssize_t thermal_temp_input_show(struct device *dev, | |
6397 | struct device_attribute *attr, | |
6398 | char *buf) | |
6399 | { | |
6400 | struct sensor_device_attribute *sensor_attr = | |
6401 | to_sensor_dev_attr(attr); | |
6402 | int idx = sensor_attr->index; | |
6403 | s32 value; | |
6404 | int res; | |
6405 | ||
6406 | res = thermal_get_sensor(idx, &value); | |
6407 | if (res) | |
6408 | return res; | |
9ebd9e83 | 6409 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
6410 | return -ENXIO; |
6411 | ||
6412 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
6413 | } | |
6414 | ||
6415 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
6416 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
6417 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
6418 | |
6419 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
6420 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
6421 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
6422 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
6423 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
6424 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
6425 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
6426 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
6427 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
6428 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
6429 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
6430 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
6431 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
6432 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
6433 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
6434 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
6435 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
6436 | }; | |
6437 | ||
6438 | #define THERMAL_ATTRS(X) \ | |
6439 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
6440 | ||
6441 | static struct attribute *thermal_temp_input_attr[] = { | |
6442 | THERMAL_ATTRS(8), | |
6443 | THERMAL_ATTRS(9), | |
6444 | THERMAL_ATTRS(10), | |
6445 | THERMAL_ATTRS(11), | |
6446 | THERMAL_ATTRS(12), | |
6447 | THERMAL_ATTRS(13), | |
6448 | THERMAL_ATTRS(14), | |
6449 | THERMAL_ATTRS(15), | |
6450 | THERMAL_ATTRS(0), | |
6451 | THERMAL_ATTRS(1), | |
6452 | THERMAL_ATTRS(2), | |
6453 | THERMAL_ATTRS(3), | |
6454 | THERMAL_ATTRS(4), | |
6455 | THERMAL_ATTRS(5), | |
6456 | THERMAL_ATTRS(6), | |
6457 | THERMAL_ATTRS(7), | |
6458 | NULL | |
6459 | }; | |
6460 | ||
6461 | static const struct attribute_group thermal_temp_input16_group = { | |
6462 | .attrs = thermal_temp_input_attr | |
6463 | }; | |
6464 | ||
6465 | static const struct attribute_group thermal_temp_input8_group = { | |
6466 | .attrs = &thermal_temp_input_attr[8] | |
6467 | }; | |
6468 | ||
6469 | #undef THERMAL_SENSOR_ATTR_TEMP | |
6470 | #undef THERMAL_ATTRS | |
6471 | ||
00cc4263 HG |
6472 | static ssize_t temp1_label_show(struct device *dev, struct device_attribute *attr, char *buf) |
6473 | { | |
6474 | return sysfs_emit(buf, "CPU\n"); | |
6475 | } | |
6476 | static DEVICE_ATTR_RO(temp1_label); | |
6477 | ||
6478 | static ssize_t temp2_label_show(struct device *dev, struct device_attribute *attr, char *buf) | |
6479 | { | |
6480 | return sysfs_emit(buf, "GPU\n"); | |
6481 | } | |
6482 | static DEVICE_ATTR_RO(temp2_label); | |
6483 | ||
6484 | static struct attribute *temp_label_attributes[] = { | |
6485 | &dev_attr_temp1_label.attr, | |
6486 | &dev_attr_temp2_label.attr, | |
6487 | NULL | |
6488 | }; | |
6489 | ||
6490 | static const struct attribute_group temp_label_attr_group = { | |
6491 | .attrs = temp_label_attributes, | |
6492 | }; | |
6493 | ||
2c37aa4e HMH |
6494 | /* --------------------------------------------------------------------- */ |
6495 | ||
a5763f22 | 6496 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6497 | { |
6759e18e | 6498 | u8 t, ta1, ta2, ver = 0; |
60eb0b35 | 6499 | int i; |
5fba344c | 6500 | int acpi_tmp7; |
2c37aa4e | 6501 | int res; |
5fba344c | 6502 | |
fe08bc4b HMH |
6503 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
6504 | ||
5fba344c | 6505 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 6506 | |
3d6f99ca | 6507 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
6508 | /* |
6509 | * Direct EC access mode: sensors at registers | |
6510 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
6511 | * non-implemented, thermal sensors return 0x80 when | |
6512 | * not available | |
6759e18e MP |
6513 | * The above rule is unfortunately flawed. This has been seen with |
6514 | * 0xC2 (power supply ID) causing thermal control problems. | |
6515 | * The EC version can be determined by offset 0xEF and at least for | |
6516 | * version 3 the Lenovo firmware team confirmed that registers 0xC0-0xC7 | |
6517 | * are not thermal registers. | |
60eb0b35 | 6518 | */ |
6759e18e MP |
6519 | if (!acpi_ec_read(TP_EC_FUNCREV, &ver)) |
6520 | pr_warn("Thinkpad ACPI EC unable to access EC version\n"); | |
78f81cc4 | 6521 | |
60eb0b35 HMH |
6522 | ta1 = ta2 = 0; |
6523 | for (i = 0; i < 8; i++) { | |
04cc862c | 6524 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
6525 | ta1 |= t; |
6526 | } else { | |
6527 | ta1 = 0; | |
6528 | break; | |
6529 | } | |
6759e18e MP |
6530 | if (ver < 3) { |
6531 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { | |
6532 | ta2 |= t; | |
6533 | } else { | |
6534 | ta1 = 0; | |
6535 | break; | |
6536 | } | |
60eb0b35 HMH |
6537 | } |
6538 | } | |
6539 | if (ta1 == 0) { | |
6540 | /* This is sheer paranoia, but we handle it anyway */ | |
6541 | if (acpi_tmp7) { | |
5cac62ac | 6542 | pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n"); |
efa27145 | 6543 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6544 | } else { |
5cac62ac | 6545 | pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n"); |
efa27145 | 6546 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6547 | } |
6548 | } else { | |
00cc4263 | 6549 | if (ver >= 3) { |
6759e18e | 6550 | thermal_read_mode = TPACPI_THERMAL_TPEC_8; |
00cc4263 HG |
6551 | thermal_use_labels = true; |
6552 | } else { | |
6759e18e MP |
6553 | thermal_read_mode = |
6554 | (ta2 != 0) ? | |
6555 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; | |
00cc4263 | 6556 | } |
60eb0b35 HMH |
6557 | } |
6558 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6559 | if (tpacpi_is_ibm() && |
6560 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6561 | /* 600e/x, 770e, 770x */ |
efa27145 | 6562 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6563 | } else { |
e28393c0 | 6564 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6565 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6566 | } |
6567 | } else { | |
6568 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6569 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6570 | } |
78f81cc4 | 6571 | |
fe08bc4b HMH |
6572 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6573 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6574 | thermal_read_mode); | |
6575 | ||
35ff8b9f | 6576 | switch (thermal_read_mode) { |
2c37aa4e | 6577 | case TPACPI_THERMAL_TPEC_16: |
00cc4263 | 6578 | thermal_attr_group = &thermal_temp_input16_group; |
2c37aa4e HMH |
6579 | break; |
6580 | case TPACPI_THERMAL_TPEC_8: | |
6581 | case TPACPI_THERMAL_ACPI_TMP07: | |
6582 | case TPACPI_THERMAL_ACPI_UPDT: | |
00cc4263 | 6583 | thermal_attr_group = &thermal_temp_input8_group; |
2c37aa4e HMH |
6584 | break; |
6585 | case TPACPI_THERMAL_NONE: | |
6586 | default: | |
6587 | return 1; | |
6588 | } | |
6589 | ||
00cc4263 HG |
6590 | res = sysfs_create_group(&tpacpi_hwmon->kobj, thermal_attr_group); |
6591 | if (res) | |
6592 | return res; | |
6593 | ||
6594 | if (thermal_use_labels) { | |
6595 | res = sysfs_create_group(&tpacpi_hwmon->kobj, &temp_label_attr_group); | |
6596 | if (res) { | |
6597 | sysfs_remove_group(&tpacpi_hwmon->kobj, thermal_attr_group); | |
6598 | return res; | |
6599 | } | |
6600 | } | |
6601 | ||
2c37aa4e HMH |
6602 | return 0; |
6603 | } | |
6604 | ||
6605 | static void thermal_exit(void) | |
6606 | { | |
00cc4263 HG |
6607 | if (thermal_attr_group) |
6608 | sysfs_remove_group(&tpacpi_hwmon->kobj, thermal_attr_group); | |
6609 | ||
6610 | if (thermal_use_labels) | |
6611 | sysfs_remove_group(&tpacpi_hwmon->kobj, &temp_label_attr_group); | |
78f81cc4 BD |
6612 | } |
6613 | ||
887965e6 | 6614 | static int thermal_read(struct seq_file *m) |
a26f878a | 6615 | { |
a26f878a HMH |
6616 | int n, i; |
6617 | struct ibm_thermal_sensors_struct t; | |
6618 | ||
6619 | n = thermal_get_sensors(&t); | |
6620 | if (unlikely(n < 0)) | |
6621 | return n; | |
6622 | ||
887965e6 | 6623 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6624 | |
6625 | if (n > 0) { | |
6626 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6627 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6628 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6629 | } else |
887965e6 | 6630 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6631 | |
887965e6 | 6632 | return 0; |
78f81cc4 BD |
6633 | } |
6634 | ||
a5763f22 HMH |
6635 | static struct ibm_struct thermal_driver_data = { |
6636 | .name = "thermal", | |
6637 | .read = thermal_read, | |
2c37aa4e | 6638 | .exit = thermal_exit, |
a5763f22 HMH |
6639 | }; |
6640 | ||
56b6aeb0 HMH |
6641 | /************************************************************************* |
6642 | * Backlight/brightness subdriver | |
6643 | */ | |
6644 | ||
f74a27d4 HMH |
6645 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6646 | ||
0e501834 HMH |
6647 | /* |
6648 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6649 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6650 | * | |
6651 | * EC HBRV (0x31) has the following layout | |
6652 | * Bit 7: unknown function | |
6653 | * Bit 6: unknown function | |
6654 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6655 | * Bit 4: must be set to zero to avoid problems | |
6656 | * Bit 3-0: backlight brightness level | |
6657 | * | |
6658 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6659 | * |
6660 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6661 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6662 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6663 | */ |
6664 | ||
e11aecf1 HMH |
6665 | enum { |
6666 | TP_EC_BACKLIGHT = 0x31, | |
6667 | ||
6668 | /* TP_EC_BACKLIGHT bitmasks */ | |
6669 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6670 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6671 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6672 | }; | |
6673 | ||
0e501834 HMH |
6674 | enum tpacpi_brightness_access_mode { |
6675 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6676 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6677 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6678 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6679 | TPACPI_BRGHT_MODE_MAX | |
6680 | }; | |
6681 | ||
94954cc6 | 6682 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6683 | |
6684 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6685 | TPACPI_BRGHT_MODE_MAX; | |
6686 | ||
f74a27d4 HMH |
6687 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6688 | ||
b21a15f6 | 6689 | static struct mutex brightness_mutex; |
56b6aeb0 | 6690 | |
0e501834 HMH |
6691 | /* NVRAM brightness access, |
6692 | * call with brightness_mutex held! */ | |
6693 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6694 | { |
0e501834 | 6695 | u8 lnvram; |
b21a15f6 | 6696 | |
0e501834 HMH |
6697 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6698 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6699 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6700 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6701 | |
6702 | return lnvram; | |
6703 | } | |
6704 | ||
6705 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6706 | { | |
6707 | u8 lec = 0; | |
6708 | u8 b_nvram; | |
6709 | ||
6710 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6711 | return; | |
6712 | ||
6713 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6714 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6715 | ||
6716 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6717 | return; | |
6718 | ||
6719 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6720 | goto unlock; | |
6721 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6722 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6723 | ||
6724 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6725 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6726 | /* NVRAM needs update */ | |
6727 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6728 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6729 | b_nvram |= lec; | |
6730 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6731 | dbg_printk(TPACPI_DBG_BRGHT, | |
6732 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6733 | (unsigned int) lec, (unsigned int) b_nvram); | |
6734 | } else | |
6735 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6736 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6737 | (unsigned int) lec, (unsigned int) b_nvram); | |
6738 | ||
6739 | unlock: | |
6740 | mutex_unlock(&brightness_mutex); | |
6741 | } | |
6742 | ||
6743 | ||
6744 | /* call with brightness_mutex held! */ | |
6745 | static int tpacpi_brightness_get_raw(int *status) | |
6746 | { | |
6747 | u8 lec = 0; | |
6748 | ||
6749 | switch (brightness_mode) { | |
6750 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6751 | *status = tpacpi_brightness_nvram_get(); | |
6752 | return 0; | |
6753 | case TPACPI_BRGHT_MODE_EC: | |
6754 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6755 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6756 | return -EIO; |
0e501834 HMH |
6757 | *status = lec; |
6758 | return 0; | |
6759 | default: | |
6760 | return -ENXIO; | |
b21a15f6 | 6761 | } |
0e501834 HMH |
6762 | } |
6763 | ||
6764 | /* call with brightness_mutex held! */ | |
6765 | /* do NOT call with illegal backlight level value */ | |
6766 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6767 | { | |
6768 | u8 lec = 0; | |
6769 | ||
6770 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6771 | return -EIO; | |
6772 | ||
6773 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6774 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6775 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6776 | return -EIO; | |
6777 | ||
6778 | return 0; | |
6779 | } | |
6780 | ||
6781 | /* call with brightness_mutex held! */ | |
6782 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6783 | { | |
6784 | int cmos_cmd, inc; | |
6785 | unsigned int current_value, i; | |
6786 | ||
6787 | current_value = tpacpi_brightness_nvram_get(); | |
6788 | ||
6789 | if (value == current_value) | |
6790 | return 0; | |
6791 | ||
6792 | cmos_cmd = (value > current_value) ? | |
6793 | TP_CMOS_BRIGHTNESS_UP : | |
6794 | TP_CMOS_BRIGHTNESS_DOWN; | |
6795 | inc = (value > current_value) ? 1 : -1; | |
6796 | ||
6797 | for (i = current_value; i != value; i += inc) | |
6798 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6799 | return -EIO; | |
b21a15f6 | 6800 | |
e11aecf1 | 6801 | return 0; |
b21a15f6 HMH |
6802 | } |
6803 | ||
6804 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6805 | static int brightness_set(unsigned int value) |
b21a15f6 | 6806 | { |
0e501834 | 6807 | int res; |
b21a15f6 | 6808 | |
bd3c7b9e | 6809 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6810 | return -EINVAL; |
6811 | ||
0e501834 HMH |
6812 | vdbg_printk(TPACPI_DBG_BRGHT, |
6813 | "set backlight level to %d\n", value); | |
6814 | ||
7646ea88 | 6815 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6816 | if (res < 0) |
6817 | return res; | |
6818 | ||
0e501834 HMH |
6819 | switch (brightness_mode) { |
6820 | case TPACPI_BRGHT_MODE_EC: | |
6821 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6822 | res = tpacpi_brightness_set_ec(value); | |
6823 | break; | |
6824 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6825 | res = tpacpi_brightness_set_ucmsstep(value); | |
6826 | break; | |
6827 | default: | |
6828 | res = -ENXIO; | |
b21a15f6 HMH |
6829 | } |
6830 | ||
b21a15f6 HMH |
6831 | mutex_unlock(&brightness_mutex); |
6832 | return res; | |
6833 | } | |
6834 | ||
6835 | /* sysfs backlight class ----------------------------------------------- */ | |
6836 | ||
6837 | static int brightness_update_status(struct backlight_device *bd) | |
6838 | { | |
0e501834 | 6839 | unsigned int level = |
b21a15f6 HMH |
6840 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6841 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6842 | bd->props.brightness : 0; |
6843 | ||
6844 | dbg_printk(TPACPI_DBG_BRGHT, | |
6845 | "backlight: attempt to set level to %d\n", | |
6846 | level); | |
6847 | ||
6848 | /* it is the backlight class's job (caller) to handle | |
6849 | * EINTR and other errors properly */ | |
6850 | return brightness_set(level); | |
b21a15f6 HMH |
6851 | } |
6852 | ||
e11aecf1 | 6853 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6854 | { |
e11aecf1 | 6855 | int status, res; |
a3f104c0 | 6856 | |
0e501834 | 6857 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6858 | if (res < 0) |
0e501834 HMH |
6859 | return 0; |
6860 | ||
6861 | res = tpacpi_brightness_get_raw(&status); | |
6862 | ||
6863 | mutex_unlock(&brightness_mutex); | |
6864 | ||
6865 | if (res < 0) | |
6866 | return 0; | |
e11e211a | 6867 | |
e11aecf1 | 6868 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6869 | } |
6870 | ||
347a2686 HMH |
6871 | static void tpacpi_brightness_notify_change(void) |
6872 | { | |
6873 | backlight_force_update(ibm_backlight_device, | |
6874 | BACKLIGHT_UPDATE_HOTKEY); | |
6875 | } | |
6876 | ||
acc2472e | 6877 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6878 | .get_brightness = brightness_get, |
6879 | .update_status = brightness_update_status, | |
56b6aeb0 | 6880 | }; |
e11e211a | 6881 | |
b21a15f6 | 6882 | /* --------------------------------------------------------------------- */ |
e11e211a | 6883 | |
122f2672 HMH |
6884 | /* |
6885 | * Call _BCL method of video device. On some ThinkPads this will | |
6886 | * switch the firmware to the ACPI brightness control mode. | |
6887 | */ | |
6888 | ||
77775838 HMH |
6889 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6890 | { | |
6891 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6892 | union acpi_object *obj; | |
46445b6b | 6893 | struct acpi_device *device, *child; |
77775838 HMH |
6894 | int rc; |
6895 | ||
46445b6b AL |
6896 | if (acpi_bus_get_device(handle, &device)) |
6897 | return 0; | |
6898 | ||
6899 | rc = 0; | |
6900 | list_for_each_entry(child, &device->children, node) { | |
6901 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6902 | NULL, &buffer); | |
720ef73d AM |
6903 | if (ACPI_FAILURE(status)) { |
6904 | buffer.length = ACPI_ALLOCATE_BUFFER; | |
46445b6b | 6905 | continue; |
720ef73d | 6906 | } |
46445b6b | 6907 | |
77775838 HMH |
6908 | obj = (union acpi_object *)buffer.pointer; |
6909 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6910 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6911 | TPACPI_MAIL); |
77775838 HMH |
6912 | rc = 0; |
6913 | } else { | |
6914 | rc = obj->package.count; | |
6915 | } | |
46445b6b | 6916 | break; |
77775838 HMH |
6917 | } |
6918 | ||
6919 | kfree(buffer.pointer); | |
6920 | return rc; | |
6921 | } | |
6922 | ||
77775838 HMH |
6923 | |
6924 | /* | |
6925 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6926 | */ | |
6927 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6928 | { | |
122f2672 | 6929 | acpi_handle video_device; |
77775838 | 6930 | int bcl_levels = 0; |
77775838 | 6931 | |
46445b6b | 6932 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6933 | if (video_device) |
6934 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6935 | |
122f2672 | 6936 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6937 | |
122f2672 | 6938 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6939 | } |
6940 | ||
59fe4fe3 HMH |
6941 | /* |
6942 | * These are only useful for models that have only one possibility | |
6943 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6944 | * these quirks. | |
6945 | */ | |
6946 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6947 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6948 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6949 | ||
6950 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6951 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6952 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6953 | ||
6da25bf5 | 6954 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6955 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6956 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6957 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6958 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6959 | ||
6da25bf5 | 6960 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6961 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6962 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6963 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6964 | |
6965 | /* Models with Intel GMA900 */ | |
6966 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6967 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6968 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6969 | }; | |
6970 | ||
77775838 HMH |
6971 | /* |
6972 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6973 | * and bright_maxlvl. | |
6974 | */ | |
6975 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6976 | { | |
6977 | unsigned int b; | |
6978 | ||
6979 | vdbg_printk(TPACPI_DBG_INIT, | |
6980 | "detecting firmware brightness interface capabilities\n"); | |
6981 | ||
6982 | /* we could run a quirks check here (same table used by | |
6983 | * brightness_init) if needed */ | |
6984 | ||
6985 | /* | |
6986 | * We always attempt to detect acpi support, so as to switch | |
6987 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6988 | * going to publish a backlight interface | |
6989 | */ | |
6990 | b = tpacpi_check_std_acpi_brightness_support(); | |
6991 | switch (b) { | |
6992 | case 16: | |
6993 | bright_maxlvl = 15; | |
77775838 HMH |
6994 | break; |
6995 | case 8: | |
6996 | case 0: | |
6997 | bright_maxlvl = 7; | |
77775838 HMH |
6998 | break; |
6999 | default: | |
77775838 HMH |
7000 | tp_features.bright_unkfw = 1; |
7001 | bright_maxlvl = b - 1; | |
7002 | } | |
15c75626 | 7003 | pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); |
77775838 HMH |
7004 | } |
7005 | ||
a5763f22 | 7006 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 7007 | { |
a19a6ee6 | 7008 | struct backlight_properties props; |
56b6aeb0 | 7009 | int b; |
59fe4fe3 | 7010 | unsigned long quirks; |
56b6aeb0 | 7011 | |
fe08bc4b HMH |
7012 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
7013 | ||
f432255e HMH |
7014 | mutex_init(&brightness_mutex); |
7015 | ||
59fe4fe3 HMH |
7016 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
7017 | ARRAY_SIZE(brightness_quirk_table)); | |
7018 | ||
77775838 HMH |
7019 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
7020 | ||
7021 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
7022 | if (tp_features.bright_unkfw) | |
7023 | return 1; | |
2dba1b5d | 7024 | |
b5972796 | 7025 | if (!brightness_enable) { |
0e501834 | 7026 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 7027 | "brightness support disabled by module parameter\n"); |
b5972796 HMH |
7028 | return 1; |
7029 | } | |
7030 | ||
b33c6ce5 | 7031 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 7032 | if (brightness_enable > 1) { |
5cac62ac | 7033 | pr_info("Standard ACPI backlight interface available, not loading native one\n"); |
217f0963 HMH |
7034 | return 1; |
7035 | } else if (brightness_enable == 1) { | |
5cac62ac | 7036 | pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
7037 | return 1; |
7038 | } | |
46713aee AM |
7039 | } else if (!tp_features.bright_acpimode) { |
7040 | pr_notice("ACPI backlight interface not available\n"); | |
7041 | return 1; | |
217f0963 HMH |
7042 | } |
7043 | ||
46713aee AM |
7044 | pr_notice("ACPI native brightness control enabled\n"); |
7045 | ||
0e501834 HMH |
7046 | /* |
7047 | * Check for module parameter bogosity, note that we | |
7048 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
7049 | * able to detect "unspecified" | |
7050 | */ | |
7051 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
7052 | return -EINVAL; | |
24d3b774 | 7053 | |
0e501834 HMH |
7054 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
7055 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
7056 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
7057 | if (quirks & TPACPI_BRGHT_Q_EC) |
7058 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
7059 | else | |
0e501834 | 7060 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 7061 | |
0e501834 | 7062 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 7063 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
7064 | brightness_mode); |
7065 | } | |
24d3b774 | 7066 | |
d7880f10 | 7067 | /* Safety */ |
e28393c0 | 7068 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
7069 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
7070 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
7071 | return -EINVAL; | |
7072 | ||
0e501834 | 7073 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 7074 | return 1; |
56b6aeb0 | 7075 | |
a19a6ee6 | 7076 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 7077 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
7078 | props.max_brightness = bright_maxlvl; |
7079 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
7080 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
7081 | NULL, NULL, | |
7082 | &ibm_backlight_data, | |
7083 | &props); | |
56b6aeb0 | 7084 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
7085 | int rc = PTR_ERR(ibm_backlight_device); |
7086 | ibm_backlight_device = NULL; | |
0978e012 | 7087 | pr_err("Could not register backlight device\n"); |
435c47e2 | 7088 | return rc; |
56b6aeb0 | 7089 | } |
0e501834 HMH |
7090 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
7091 | "brightness is supported\n"); | |
56b6aeb0 | 7092 | |
59fe4fe3 | 7093 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
5cac62ac AS |
7094 | pr_notice("brightness: will use unverified default: brightness_mode=%d\n", |
7095 | brightness_mode); | |
7096 | pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n", | |
7097 | TPACPI_MAIL); | |
59fe4fe3 HMH |
7098 | } |
7099 | ||
7d9745cf HMH |
7100 | /* Added by mistake in early 2007. Probably useless, but it could |
7101 | * be working around some unknown firmware problem where the value | |
7102 | * read at startup doesn't match the real hardware state... so leave | |
7103 | * it in place just in case */ | |
56b6aeb0 HMH |
7104 | backlight_update_status(ibm_backlight_device); |
7105 | ||
347a2686 | 7106 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 7107 | "brightness: registering brightness hotkeys as change notification\n"); |
347a2686 HMH |
7108 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
7109 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 7110 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
7111 | return 0; |
7112 | } | |
7113 | ||
fd3c3a42 | 7114 | static void brightness_suspend(void) |
0e501834 HMH |
7115 | { |
7116 | tpacpi_brightness_checkpoint_nvram(); | |
7117 | } | |
7118 | ||
7119 | static void brightness_shutdown(void) | |
7120 | { | |
7121 | tpacpi_brightness_checkpoint_nvram(); | |
7122 | } | |
7123 | ||
56b6aeb0 HMH |
7124 | static void brightness_exit(void) |
7125 | { | |
7126 | if (ibm_backlight_device) { | |
0e501834 | 7127 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 7128 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 7129 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 7130 | } |
0e501834 HMH |
7131 | |
7132 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
7133 | } |
7134 | ||
887965e6 | 7135 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 7136 | { |
56b6aeb0 HMH |
7137 | int level; |
7138 | ||
35ff8b9f HMH |
7139 | level = brightness_get(NULL); |
7140 | if (level < 0) { | |
887965e6 | 7141 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 7142 | } else { |
887965e6 AD |
7143 | seq_printf(m, "level:\t\t%d\n", level); |
7144 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
7145 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
7146 | bright_maxlvl); | |
56b6aeb0 HMH |
7147 | } |
7148 | ||
887965e6 | 7149 | return 0; |
56b6aeb0 HMH |
7150 | } |
7151 | ||
8acb0250 HM |
7152 | static int brightness_write(char *buf) |
7153 | { | |
7154 | int level; | |
4273af8d | 7155 | int rc; |
1da177e4 | 7156 | char *cmd; |
1da177e4 | 7157 | |
4273af8d HMH |
7158 | level = brightness_get(NULL); |
7159 | if (level < 0) | |
7160 | return level; | |
78f81cc4 | 7161 | |
be51bd45 | 7162 | while ((cmd = strsep(&buf, ","))) { |
78f81cc4 | 7163 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 7164 | if (level < bright_maxlvl) |
4273af8d | 7165 | level++; |
78f81cc4 | 7166 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
7167 | if (level > 0) |
7168 | level--; | |
7169 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 7170 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 7171 | /* new level set */ |
78f81cc4 BD |
7172 | } else |
7173 | return -EINVAL; | |
78f81cc4 BD |
7174 | } |
7175 | ||
0e501834 HMH |
7176 | tpacpi_disclose_usertask("procfs brightness", |
7177 | "set level to %d\n", level); | |
7178 | ||
4273af8d HMH |
7179 | /* |
7180 | * Now we know what the final level should be, so we try to set it. | |
7181 | * Doing it this way makes the syscall restartable in case of EINTR | |
7182 | */ | |
7183 | rc = brightness_set(level); | |
347a2686 HMH |
7184 | if (!rc && ibm_backlight_device) |
7185 | backlight_force_update(ibm_backlight_device, | |
7186 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 7187 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7188 | } |
7189 | ||
a5763f22 HMH |
7190 | static struct ibm_struct brightness_driver_data = { |
7191 | .name = "brightness", | |
7192 | .read = brightness_read, | |
7193 | .write = brightness_write, | |
7194 | .exit = brightness_exit, | |
0e501834 HMH |
7195 | .suspend = brightness_suspend, |
7196 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
7197 | }; |
7198 | ||
56b6aeb0 HMH |
7199 | /************************************************************************* |
7200 | * Volume subdriver | |
7201 | */ | |
fb87a811 | 7202 | |
329e4e18 HMH |
7203 | /* |
7204 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
7205 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
7206 | * | |
7207 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
7208 | * ThinkPads only implement the MUTE gate. | |
7209 | * | |
7210 | * EC register 0x30 | |
7211 | * Bit 6: MUTE (1 mutes sound) | |
7212 | * Bit 3-0: Volume | |
7213 | * Other bits should be zero as far as we know. | |
7214 | * | |
7215 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
7216 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
7217 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
7218 | * and we leave them unchanged. | |
9a417ec0 AL |
7219 | * |
7220 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
7221 | * in response to user input. Unfortunately, this rarely works well. | |
7222 | * The laptop changes the state of its internal MUTE gate and, on some | |
7223 | * models, sends KEY_MUTE, causing any user code that responds to the | |
7224 | * mute button to get confused. The hardware MUTE gate is also | |
7225 | * unnecessary, since user code can handle the mute button without | |
7226 | * kernel or EC help. | |
7227 | * | |
7228 | * To avoid confusing userspace, we simply disable all EC-based mute | |
7229 | * and volume controls when possible. | |
329e4e18 HMH |
7230 | */ |
7231 | ||
ff850c33 HMH |
7232 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
7233 | ||
0d204c34 HMH |
7234 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
7235 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
7236 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
7237 | ||
cab66613 TI |
7238 | #if SNDRV_CARDS <= 32 |
7239 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
7240 | #else | |
7241 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
7242 | #endif | |
7243 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 7244 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 7245 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
7246 | |
7247 | struct tpacpi_alsa_data { | |
7248 | struct snd_card *card; | |
7249 | struct snd_ctl_elem_id *ctl_mute_id; | |
7250 | struct snd_ctl_elem_id *ctl_vol_id; | |
7251 | }; | |
7252 | ||
7253 | static struct snd_card *alsa_card; | |
7254 | ||
329e4e18 HMH |
7255 | enum { |
7256 | TP_EC_AUDIO = 0x30, | |
7257 | ||
7258 | /* TP_EC_AUDIO bits */ | |
7259 | TP_EC_AUDIO_MUTESW = 6, | |
7260 | ||
7261 | /* TP_EC_AUDIO bitmasks */ | |
7262 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
7263 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
7264 | ||
7265 | /* Maximum volume */ | |
7266 | TP_EC_VOLUME_MAX = 14, | |
7267 | }; | |
7268 | ||
7269 | enum tpacpi_volume_access_mode { | |
7270 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
7271 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
7272 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
7273 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
7274 | TPACPI_VOL_MODE_MAX | |
7275 | }; | |
7276 | ||
a112ceee HMH |
7277 | enum tpacpi_volume_capabilities { |
7278 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
7279 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
7280 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
7281 | TPACPI_VOL_CAP_MAX | |
7282 | }; | |
7283 | ||
9a417ec0 AL |
7284 | enum tpacpi_mute_btn_mode { |
7285 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
7286 | /* We don't know what mode 1 is. */ | |
7287 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
7288 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
7289 | }; | |
7290 | ||
329e4e18 HMH |
7291 | static enum tpacpi_volume_access_mode volume_mode = |
7292 | TPACPI_VOL_MODE_MAX; | |
7293 | ||
a112ceee | 7294 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 7295 | static bool volume_control_allowed; |
9a417ec0 AL |
7296 | static bool software_mute_requested = true; |
7297 | static bool software_mute_active; | |
7298 | static int software_mute_orig_mode; | |
f74a27d4 | 7299 | |
329e4e18 HMH |
7300 | /* |
7301 | * Used to syncronize writers to TP_EC_AUDIO and | |
7302 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
7303 | */ | |
7304 | static struct mutex volume_mutex; | |
7305 | ||
7306 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 7307 | { |
329e4e18 HMH |
7308 | u8 lec = 0; |
7309 | u8 b_nvram; | |
a112ceee | 7310 | u8 ec_mask; |
329e4e18 HMH |
7311 | |
7312 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
7313 | return; | |
c7ac6291 HMH |
7314 | if (!volume_control_allowed) |
7315 | return; | |
9a417ec0 AL |
7316 | if (software_mute_active) |
7317 | return; | |
329e4e18 HMH |
7318 | |
7319 | vdbg_printk(TPACPI_DBG_MIXER, | |
7320 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 7321 | |
a112ceee HMH |
7322 | if (tp_features.mixer_no_level_control) |
7323 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
7324 | else | |
7325 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
7326 | ||
329e4e18 HMH |
7327 | if (mutex_lock_killable(&volume_mutex) < 0) |
7328 | return; | |
7329 | ||
7330 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
7331 | goto unlock; | |
7332 | lec &= ec_mask; | |
7333 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
7334 | ||
7335 | if (lec != (b_nvram & ec_mask)) { | |
7336 | /* NVRAM needs update */ | |
7337 | b_nvram &= ~ec_mask; | |
7338 | b_nvram |= lec; | |
7339 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
7340 | dbg_printk(TPACPI_DBG_MIXER, | |
7341 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
7342 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 7343 | } else { |
329e4e18 HMH |
7344 | vdbg_printk(TPACPI_DBG_MIXER, |
7345 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
7346 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
7347 | } |
7348 | ||
329e4e18 HMH |
7349 | unlock: |
7350 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
7351 | } |
7352 | ||
329e4e18 | 7353 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 7354 | { |
329e4e18 | 7355 | u8 s; |
78f81cc4 | 7356 | |
329e4e18 HMH |
7357 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
7358 | return -EIO; | |
78f81cc4 | 7359 | |
329e4e18 | 7360 | *status = s; |
1da177e4 | 7361 | |
329e4e18 | 7362 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 7363 | |
329e4e18 HMH |
7364 | return 0; |
7365 | } | |
78f81cc4 | 7366 | |
329e4e18 HMH |
7367 | static int volume_get_status(u8 *status) |
7368 | { | |
7369 | return volume_get_status_ec(status); | |
7370 | } | |
78f81cc4 | 7371 | |
329e4e18 HMH |
7372 | static int volume_set_status_ec(const u8 status) |
7373 | { | |
7374 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
7375 | return -EIO; | |
78f81cc4 | 7376 | |
329e4e18 HMH |
7377 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
7378 | ||
9a417ec0 AL |
7379 | /* |
7380 | * On X200s, and possibly on others, it can take a while for | |
7381 | * reads to become correct. | |
7382 | */ | |
7383 | msleep(1); | |
7384 | ||
329e4e18 HMH |
7385 | return 0; |
7386 | } | |
7387 | ||
7388 | static int volume_set_status(const u8 status) | |
7389 | { | |
7390 | return volume_set_status_ec(status); | |
7391 | } | |
7392 | ||
88cc8377 HMH |
7393 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7394 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
7395 | { |
7396 | int rc; | |
7397 | u8 s, n; | |
7398 | ||
7399 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7400 | return -EINTR; | |
7401 | ||
7402 | rc = volume_get_status_ec(&s); | |
7403 | if (rc) | |
7404 | goto unlock; | |
7405 | ||
7406 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
7407 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
7408 | ||
88cc8377 | 7409 | if (n != s) { |
329e4e18 | 7410 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7411 | if (!rc) |
7412 | rc = 1; | |
7413 | } | |
329e4e18 HMH |
7414 | |
7415 | unlock: | |
7416 | mutex_unlock(&volume_mutex); | |
7417 | return rc; | |
7418 | } | |
7419 | ||
88cc8377 HMH |
7420 | static int volume_alsa_set_mute(const bool mute) |
7421 | { | |
7422 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
7423 | (mute) ? "" : "un"); | |
7424 | return __volume_set_mute_ec(mute); | |
7425 | } | |
7426 | ||
329e4e18 HMH |
7427 | static int volume_set_mute(const bool mute) |
7428 | { | |
88cc8377 HMH |
7429 | int rc; |
7430 | ||
329e4e18 HMH |
7431 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
7432 | (mute) ? "" : "un"); | |
88cc8377 HMH |
7433 | |
7434 | rc = __volume_set_mute_ec(mute); | |
7435 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
7436 | } |
7437 | ||
88cc8377 HMH |
7438 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7439 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
7440 | { |
7441 | int rc; | |
7442 | u8 s, n; | |
7443 | ||
7444 | if (vol > TP_EC_VOLUME_MAX) | |
7445 | return -EINVAL; | |
7446 | ||
7447 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7448 | return -EINTR; | |
7449 | ||
7450 | rc = volume_get_status_ec(&s); | |
7451 | if (rc) | |
7452 | goto unlock; | |
7453 | ||
7454 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
7455 | ||
88cc8377 | 7456 | if (n != s) { |
329e4e18 | 7457 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7458 | if (!rc) |
7459 | rc = 1; | |
7460 | } | |
329e4e18 HMH |
7461 | |
7462 | unlock: | |
7463 | mutex_unlock(&volume_mutex); | |
7464 | return rc; | |
7465 | } | |
7466 | ||
9a417ec0 AL |
7467 | static int volume_set_software_mute(bool startup) |
7468 | { | |
7469 | int result; | |
7470 | ||
7471 | if (!tpacpi_is_lenovo()) | |
7472 | return -ENODEV; | |
7473 | ||
7474 | if (startup) { | |
7475 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
7476 | "HAUM", "qd")) | |
7477 | return -EIO; | |
7478 | ||
7479 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7480 | "Initial HAUM setting was %d\n", | |
7481 | software_mute_orig_mode); | |
7482 | } | |
7483 | ||
7484 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
7485 | (int)TP_EC_MUTE_BTN_NONE)) | |
7486 | return -EIO; | |
7487 | ||
7488 | if (result != TP_EC_MUTE_BTN_NONE) | |
7489 | pr_warn("Unexpected SAUM result %d\n", | |
7490 | result); | |
7491 | ||
7492 | /* | |
7493 | * In software mute mode, the standard codec controls take | |
7494 | * precendence, so we unmute the ThinkPad HW switch at | |
7495 | * startup. Just on case there are SAUM-capable ThinkPads | |
7496 | * with level controls, set max HW volume as well. | |
7497 | */ | |
7498 | if (tp_features.mixer_no_level_control) | |
7499 | result = volume_set_mute(false); | |
7500 | else | |
7501 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
7502 | ||
7503 | if (result != 0) | |
7504 | pr_warn("Failed to unmute the HW mute switch\n"); | |
7505 | ||
7506 | return 0; | |
7507 | } | |
7508 | ||
7509 | static void volume_exit_software_mute(void) | |
7510 | { | |
7511 | int r; | |
7512 | ||
7513 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
7514 | || r != software_mute_orig_mode) | |
7515 | pr_warn("Failed to restore mute mode\n"); | |
7516 | } | |
7517 | ||
88cc8377 | 7518 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
7519 | { |
7520 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
7521 | "ALSA: trying to set volume level to %hu\n", vol); |
7522 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
7523 | } |
7524 | ||
0d204c34 HMH |
7525 | static void volume_alsa_notify_change(void) |
7526 | { | |
7527 | struct tpacpi_alsa_data *d; | |
7528 | ||
7529 | if (alsa_card && alsa_card->private_data) { | |
7530 | d = alsa_card->private_data; | |
7531 | if (d->ctl_mute_id) | |
7532 | snd_ctl_notify(alsa_card, | |
7533 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7534 | d->ctl_mute_id); | |
7535 | if (d->ctl_vol_id) | |
7536 | snd_ctl_notify(alsa_card, | |
7537 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7538 | d->ctl_vol_id); | |
7539 | } | |
7540 | } | |
7541 | ||
7542 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7543 | struct snd_ctl_elem_info *uinfo) | |
7544 | { | |
7545 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7546 | uinfo->count = 1; | |
7547 | uinfo->value.integer.min = 0; | |
7548 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7549 | return 0; | |
7550 | } | |
7551 | ||
7552 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7553 | struct snd_ctl_elem_value *ucontrol) | |
7554 | { | |
7555 | u8 s; | |
7556 | int rc; | |
7557 | ||
7558 | rc = volume_get_status(&s); | |
7559 | if (rc < 0) | |
7560 | return rc; | |
7561 | ||
7562 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7563 | return 0; | |
7564 | } | |
7565 | ||
7566 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7567 | struct snd_ctl_elem_value *ucontrol) | |
7568 | { | |
38e11cde HMH |
7569 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7570 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7571 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7572 | } |
7573 | ||
7574 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7575 | ||
7576 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7577 | struct snd_ctl_elem_value *ucontrol) | |
7578 | { | |
7579 | u8 s; | |
7580 | int rc; | |
7581 | ||
7582 | rc = volume_get_status(&s); | |
7583 | if (rc < 0) | |
7584 | return rc; | |
7585 | ||
7586 | ucontrol->value.integer.value[0] = | |
7587 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7588 | return 0; | |
7589 | } | |
7590 | ||
7591 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7592 | struct snd_ctl_elem_value *ucontrol) | |
7593 | { | |
38e11cde HMH |
7594 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7595 | ucontrol->value.integer.value[0] ? | |
7596 | "un" : ""); | |
88cc8377 | 7597 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7598 | } |
7599 | ||
c3aa4723 | 7600 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7601 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7602 | .name = "Console Playback Volume", | |
7603 | .index = 0, | |
7604 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7605 | .info = volume_alsa_vol_info, | |
7606 | .get = volume_alsa_vol_get, | |
7607 | }; | |
7608 | ||
c3aa4723 | 7609 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7610 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7611 | .name = "Console Playback Switch", | |
7612 | .index = 0, | |
7613 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7614 | .info = volume_alsa_mute_info, | |
7615 | .get = volume_alsa_mute_get, | |
7616 | }; | |
7617 | ||
fd3c3a42 | 7618 | static void volume_suspend(void) |
329e4e18 HMH |
7619 | { |
7620 | tpacpi_volume_checkpoint_nvram(); | |
7621 | } | |
7622 | ||
0d204c34 HMH |
7623 | static void volume_resume(void) |
7624 | { | |
9a417ec0 AL |
7625 | if (software_mute_active) { |
7626 | if (volume_set_software_mute(false) < 0) | |
7627 | pr_warn("Failed to restore software mute\n"); | |
7628 | } else { | |
7629 | volume_alsa_notify_change(); | |
7630 | } | |
0d204c34 HMH |
7631 | } |
7632 | ||
329e4e18 HMH |
7633 | static void volume_shutdown(void) |
7634 | { | |
7635 | tpacpi_volume_checkpoint_nvram(); | |
7636 | } | |
7637 | ||
7638 | static void volume_exit(void) | |
7639 | { | |
0d204c34 HMH |
7640 | if (alsa_card) { |
7641 | snd_card_free(alsa_card); | |
7642 | alsa_card = NULL; | |
7643 | } | |
7644 | ||
329e4e18 | 7645 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7646 | |
7647 | if (software_mute_active) | |
7648 | volume_exit_software_mute(); | |
329e4e18 HMH |
7649 | } |
7650 | ||
0d204c34 HMH |
7651 | static int __init volume_create_alsa_mixer(void) |
7652 | { | |
7653 | struct snd_card *card; | |
7654 | struct tpacpi_alsa_data *data; | |
7655 | struct snd_kcontrol *ctl_vol; | |
7656 | struct snd_kcontrol *ctl_mute; | |
7657 | int rc; | |
7658 | ||
89235e55 TI |
7659 | rc = snd_card_new(&tpacpi_pdev->dev, |
7660 | alsa_index, alsa_id, THIS_MODULE, | |
7661 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7662 | if (rc < 0 || !card) { |
0978e012 | 7663 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7664 | return 1; |
7665 | } | |
0d204c34 HMH |
7666 | |
7667 | BUG_ON(!card->private_data); | |
7668 | data = card->private_data; | |
7669 | data->card = card; | |
7670 | ||
7671 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7672 | sizeof(card->driver)); | |
7673 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7674 | sizeof(card->shortname)); | |
7675 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7676 | (thinkpad_id.ec_version_str) ? | |
7677 | thinkpad_id.ec_version_str : "(unknown)"); | |
7678 | snprintf(card->longname, sizeof(card->longname), | |
7679 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7680 | (thinkpad_id.ec_version_str) ? | |
7681 | thinkpad_id.ec_version_str : "unknown"); | |
7682 | ||
7683 | if (volume_control_allowed) { | |
7684 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7685 | volume_alsa_control_vol.access = | |
7686 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7687 | ||
7688 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7689 | volume_alsa_control_mute.access = | |
7690 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7691 | } | |
7692 | ||
7693 | if (!tp_features.mixer_no_level_control) { | |
7694 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7695 | rc = snd_ctl_add(card, ctl_vol); | |
7696 | if (rc < 0) { | |
0978e012 JP |
7697 | pr_err("Failed to create ALSA volume control: %d\n", |
7698 | rc); | |
74c75c18 | 7699 | goto err_exit; |
78f81cc4 | 7700 | } |
0d204c34 HMH |
7701 | data->ctl_vol_id = &ctl_vol->id; |
7702 | } | |
78f81cc4 | 7703 | |
0d204c34 HMH |
7704 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7705 | rc = snd_ctl_add(card, ctl_mute); | |
7706 | if (rc < 0) { | |
0978e012 | 7707 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7708 | goto err_exit; |
0d204c34 HMH |
7709 | } |
7710 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7711 | |
0d204c34 | 7712 | rc = snd_card_register(card); |
0d204c34 | 7713 | if (rc < 0) { |
0978e012 | 7714 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7715 | goto err_exit; |
0d204c34 HMH |
7716 | } |
7717 | ||
7718 | alsa_card = card; | |
74c75c18 HMH |
7719 | return 0; |
7720 | ||
7721 | err_exit: | |
7722 | snd_card_free(card); | |
7723 | return 1; | |
0d204c34 HMH |
7724 | } |
7725 | ||
a112ceee HMH |
7726 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7727 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7728 | ||
7729 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7730 | /* Whitelist volume level on all IBM by default */ | |
7731 | { .vendor = PCI_VENDOR_ID_IBM, | |
7732 | .bios = TPACPI_MATCH_ANY, | |
7733 | .ec = TPACPI_MATCH_ANY, | |
7734 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7735 | ||
7736 | /* Lenovo models with volume control (needs confirmation) */ | |
7737 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7738 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7739 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7740 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7741 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7742 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7743 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7744 | ||
7745 | /* Whitelist mute-only on all Lenovo by default */ | |
7746 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7747 | .bios = TPACPI_MATCH_ANY, | |
7748 | .ec = TPACPI_MATCH_ANY, | |
7749 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7750 | }; | |
7751 | ||
329e4e18 HMH |
7752 | static int __init volume_init(struct ibm_init_struct *iibm) |
7753 | { | |
a112ceee | 7754 | unsigned long quirks; |
0d204c34 | 7755 | int rc; |
a112ceee | 7756 | |
329e4e18 HMH |
7757 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7758 | ||
7759 | mutex_init(&volume_mutex); | |
7760 | ||
7761 | /* | |
7762 | * Check for module parameter bogosity, note that we | |
7763 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7764 | * able to detect "unspecified" | |
7765 | */ | |
7766 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7767 | return -EINVAL; | |
7768 | ||
7769 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
5cac62ac AS |
7770 | pr_err("UCMS step volume mode not implemented, please contact %s\n", |
7771 | TPACPI_MAIL); | |
329e4e18 HMH |
7772 | return 1; |
7773 | } | |
7774 | ||
a112ceee HMH |
7775 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7776 | return -EINVAL; | |
7777 | ||
0d204c34 HMH |
7778 | /* |
7779 | * The ALSA mixer is our primary interface. | |
7780 | * When disabled, don't install the subdriver at all | |
7781 | */ | |
7782 | if (!alsa_enable) { | |
7783 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
5cac62ac | 7784 | "ALSA mixer disabled by parameter, not loading volume subdriver...\n"); |
0d204c34 HMH |
7785 | return 1; |
7786 | } | |
7787 | ||
a112ceee HMH |
7788 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7789 | ARRAY_SIZE(volume_quirk_table)); | |
7790 | ||
7791 | switch (volume_capabilities) { | |
7792 | case TPACPI_VOL_CAP_AUTO: | |
7793 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7794 | tp_features.mixer_no_level_control = 1; | |
7795 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7796 | tp_features.mixer_no_level_control = 0; | |
7797 | else | |
7798 | return 1; /* no mixer */ | |
7799 | break; | |
7800 | case TPACPI_VOL_CAP_VOLMUTE: | |
7801 | tp_features.mixer_no_level_control = 0; | |
7802 | break; | |
7803 | case TPACPI_VOL_CAP_MUTEONLY: | |
7804 | tp_features.mixer_no_level_control = 1; | |
7805 | break; | |
7806 | default: | |
7807 | return 1; | |
7808 | } | |
7809 | ||
7810 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7811 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7812 | "using user-supplied volume_capabilities=%d\n", | |
7813 | volume_capabilities); | |
7814 | ||
329e4e18 HMH |
7815 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7816 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7817 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7818 | ||
7819 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7820 | "driver auto-selected volume_mode=%d\n", | |
7821 | volume_mode); | |
7822 | } else { | |
7823 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7824 | "using user-supplied volume_mode=%d\n", | |
7825 | volume_mode); | |
7826 | } | |
7827 | ||
7828 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7829 | "mute is supported, volume control is %s\n", |
7830 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7831 | |
9a417ec0 AL |
7832 | if (software_mute_requested && volume_set_software_mute(true) == 0) { |
7833 | software_mute_active = true; | |
7834 | } else { | |
7835 | rc = volume_create_alsa_mixer(); | |
7836 | if (rc) { | |
7837 | pr_err("Could not create the ALSA mixer interface\n"); | |
7838 | return rc; | |
7839 | } | |
0d204c34 | 7840 | |
9a417ec0 AL |
7841 | pr_info("Console audio control enabled, mode: %s\n", |
7842 | (volume_control_allowed) ? | |
7843 | "override (read/write)" : | |
7844 | "monitor (read only)"); | |
7845 | } | |
c7ac6291 | 7846 | |
0d204c34 HMH |
7847 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7848 | "registering volume hotkeys as change notification\n"); | |
7849 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7850 | | TP_ACPI_HKEY_VOLUP_MASK | |
7851 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7852 | | TP_ACPI_HKEY_MUTE_MASK); | |
7853 | ||
329e4e18 HMH |
7854 | return 0; |
7855 | } | |
f74a27d4 | 7856 | |
887965e6 | 7857 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7858 | { |
329e4e18 | 7859 | u8 status; |
78f81cc4 | 7860 | |
329e4e18 | 7861 | if (volume_get_status(&status) < 0) { |
887965e6 | 7862 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7863 | } else { |
a112ceee | 7864 | if (tp_features.mixer_no_level_control) |
887965e6 | 7865 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7866 | else |
887965e6 | 7867 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7868 | status & TP_EC_AUDIO_LVL_MSK); |
7869 | ||
887965e6 | 7870 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7871 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7872 | |
c7ac6291 | 7873 | if (volume_control_allowed) { |
887965e6 | 7874 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7875 | if (!tp_features.mixer_no_level_control) { |
5cac62ac AS |
7876 | seq_printf(m, "commands:\tup, down\n"); |
7877 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", | |
7878 | TP_EC_VOLUME_MAX); | |
c7ac6291 | 7879 | } |
78f81cc4 BD |
7880 | } |
7881 | } | |
7882 | ||
7883 | return 0; | |
7884 | } | |
7885 | ||
78f81cc4 BD |
7886 | static int volume_write(char *buf) |
7887 | { | |
329e4e18 HMH |
7888 | u8 s; |
7889 | u8 new_level, new_mute; | |
7890 | int l; | |
78f81cc4 | 7891 | char *cmd; |
329e4e18 | 7892 | int rc; |
78f81cc4 | 7893 | |
c7ac6291 HMH |
7894 | /* |
7895 | * We do allow volume control at driver startup, so that the | |
7896 | * user can set initial state through the volume=... parameter hack. | |
7897 | */ | |
7898 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7899 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7900 | tp_warned.volume_ctrl_forbidden = 1; | |
5cac62ac AS |
7901 | pr_notice("Console audio control in monitor mode, changes are not allowed\n"); |
7902 | pr_notice("Use the volume_control=1 module parameter to enable volume control\n"); | |
c7ac6291 HMH |
7903 | } |
7904 | return -EPERM; | |
7905 | } | |
7906 | ||
329e4e18 HMH |
7907 | rc = volume_get_status(&s); |
7908 | if (rc < 0) | |
7909 | return rc; | |
78f81cc4 | 7910 | |
329e4e18 HMH |
7911 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7912 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7913 | ||
be51bd45 | 7914 | while ((cmd = strsep(&buf, ","))) { |
a112ceee HMH |
7915 | if (!tp_features.mixer_no_level_control) { |
7916 | if (strlencmp(cmd, "up") == 0) { | |
7917 | if (new_mute) | |
7918 | new_mute = 0; | |
7919 | else if (new_level < TP_EC_VOLUME_MAX) | |
7920 | new_level++; | |
7921 | continue; | |
7922 | } else if (strlencmp(cmd, "down") == 0) { | |
7923 | if (new_mute) | |
7924 | new_mute = 0; | |
7925 | else if (new_level > 0) | |
7926 | new_level--; | |
7927 | continue; | |
7928 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7929 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
3fca4b14 | 7930 | new_level = l; |
a112ceee HMH |
7931 | continue; |
7932 | } | |
7933 | } | |
7934 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7935 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7936 | else if (strlencmp(cmd, "unmute") == 0) |
7937 | new_mute = 0; | |
7938 | else | |
1da177e4 | 7939 | return -EINVAL; |
329e4e18 | 7940 | } |
1da177e4 | 7941 | |
a112ceee HMH |
7942 | if (tp_features.mixer_no_level_control) { |
7943 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7944 | new_mute ? "" : "un"); | |
7945 | rc = volume_set_mute(!!new_mute); | |
7946 | } else { | |
7947 | tpacpi_disclose_usertask("procfs volume", | |
7948 | "%smute and set level to %d\n", | |
7949 | new_mute ? "" : "un", new_level); | |
7950 | rc = volume_set_status(new_mute | new_level); | |
7951 | } | |
0d204c34 | 7952 | volume_alsa_notify_change(); |
78f81cc4 | 7953 | |
329e4e18 | 7954 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7955 | } |
7956 | ||
a5763f22 HMH |
7957 | static struct ibm_struct volume_driver_data = { |
7958 | .name = "volume", | |
7959 | .read = volume_read, | |
7960 | .write = volume_write, | |
329e4e18 HMH |
7961 | .exit = volume_exit, |
7962 | .suspend = volume_suspend, | |
0d204c34 | 7963 | .resume = volume_resume, |
329e4e18 | 7964 | .shutdown = volume_shutdown, |
a5763f22 | 7965 | }; |
56b6aeb0 | 7966 | |
ff850c33 HMH |
7967 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7968 | ||
7969 | #define alsa_card NULL | |
7970 | ||
bb55a2ee | 7971 | static inline void volume_alsa_notify_change(void) |
ff850c33 HMH |
7972 | { |
7973 | } | |
7974 | ||
7975 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7976 | { | |
0978e012 | 7977 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7978 | |
7979 | return 1; | |
7980 | } | |
7981 | ||
7982 | static struct ibm_struct volume_driver_data = { | |
7983 | .name = "volume", | |
7984 | }; | |
7985 | ||
7986 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7987 | ||
56b6aeb0 HMH |
7988 | /************************************************************************* |
7989 | * Fan subdriver | |
7990 | */ | |
7991 | ||
7992 | /* | |
7993 | * FAN ACCESS MODES | |
7994 | * | |
efa27145 | 7995 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7996 | * ACPI GFAN method: returns fan level |
7997 | * | |
efa27145 | 7998 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7999 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 8000 | * |
efa27145 | 8001 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
8002 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
8003 | * | |
f51d1a39 HMH |
8004 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
8005 | * it for writing. | |
56b6aeb0 | 8006 | * |
efa27145 | 8007 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
8008 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
8009 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
8010 | * |
8011 | * Fan speed changes of any sort (including those caused by the | |
8012 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 8013 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
8014 | * limited. |
8015 | * | |
8016 | * Reading is not available if GFAN exists. | |
8017 | * Writing is not available if SFAN exists. | |
8018 | * | |
8019 | * Bits | |
8020 | * 7 automatic mode engaged; | |
8021 | * (default operation mode of the ThinkPad) | |
8022 | * fan level is ignored in this mode. | |
f51d1a39 | 8023 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 8024 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
8025 | * the tachometer while the fan controller ramps up |
8026 | * the speed (which can take up to a few *minutes*). | |
8027 | * Speeds up fan to 100% duty-cycle, which is far above | |
8028 | * the standard RPM levels. It is not impossible that | |
8029 | * it could cause hardware damage. | |
56b6aeb0 HMH |
8030 | * 5-3 unused in some models. Extra bits for fan level |
8031 | * in others, but still useless as all values above | |
8032 | * 7 map to the same speed as level 7 in these models. | |
8033 | * 2-0 fan level (0..7 usually) | |
8034 | * 0x00 = stop | |
8035 | * 0x07 = max (set when temperatures critical) | |
8036 | * Some ThinkPads may have other levels, see | |
efa27145 | 8037 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
8038 | * |
8039 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 8040 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
8041 | * does so, its initial value is meaningless (0x07). |
8042 | * | |
8043 | * For firmware bugs, refer to: | |
19206a1e | 8044 | * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues |
56b6aeb0 HMH |
8045 | * |
8046 | * ---- | |
8047 | * | |
8048 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
8049 | * Main fan tachometer reading (in RPM) | |
8050 | * | |
8051 | * This register is present on all ThinkPads with a new-style EC, and | |
8052 | * it is known not to be present on the A21m/e, and T22, as there is | |
8053 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
8054 | * ThinkPads from this same time period (and earlier) probably lack the | |
8055 | * tachometer as well. | |
8056 | * | |
877d0310 | 8057 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
8058 | * was never fixed by IBM to report the EC firmware version string |
8059 | * probably support the tachometer (like the early X models), so | |
8060 | * detecting it is quite hard. We need more data to know for sure. | |
8061 | * | |
8062 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
8063 | * might result. | |
8064 | * | |
f51d1a39 HMH |
8065 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
8066 | * mode. | |
56b6aeb0 HMH |
8067 | * |
8068 | * For firmware bugs, refer to: | |
19206a1e | 8069 | * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues |
56b6aeb0 | 8070 | * |
d7377247 HMH |
8071 | * ---- |
8072 | * | |
8073 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
8074 | * | |
8075 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
8076 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
8077 | * is one, the tachometer registers show the speed of the auxiliary | |
8078 | * fan. | |
8079 | * | |
8080 | * Fan control seems to affect both fans, regardless of the state | |
8081 | * of this bit. | |
8082 | * | |
8083 | * So far, only the firmware for the X60/X61 non-tablet versions | |
8084 | * seem to support this (firmware TP-7M). | |
8085 | * | |
efa27145 | 8086 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
8087 | * ThinkPad X31, X40, X41. Not available in the X60. |
8088 | * | |
8089 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
8090 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
8091 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
8092 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
8093 | * | |
8094 | * The speeds are stored on handles | |
8095 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
8096 | * | |
af901ca1 | 8097 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
8098 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
8099 | * | |
8100 | * ACPI DSDT switches which set is in use depending on various | |
8101 | * factors. | |
8102 | * | |
efa27145 | 8103 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
8104 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
8105 | * but the ACPI tables just mention level 7. | |
8106 | */ | |
8107 | ||
f74a27d4 HMH |
8108 | enum { /* Fan control constants */ |
8109 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
8110 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
8111 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
8112 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
8113 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
8114 | |
8115 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
8116 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
8117 | ||
8118 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
8119 | }; | |
8120 | ||
8121 | enum fan_status_access_mode { | |
8122 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
8123 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
8124 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
8125 | }; | |
8126 | ||
8127 | enum fan_control_access_mode { | |
8128 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
8129 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
8130 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
8131 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
8132 | }; | |
8133 | ||
8134 | enum fan_control_commands { | |
8135 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
8136 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
8137 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
8138 | * and also watchdog cmd */ | |
8139 | }; | |
8140 | ||
90ab5ee9 | 8141 | static bool fan_control_allowed; |
f74a27d4 | 8142 | |
69ba91cb HMH |
8143 | static enum fan_status_access_mode fan_status_access_mode; |
8144 | static enum fan_control_access_mode fan_control_access_mode; | |
8145 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 8146 | |
778b4d74 | 8147 | static u8 fan_control_initial_status; |
fe98a52c | 8148 | static u8 fan_control_desired_level; |
0081b162 | 8149 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
8150 | static int fan_watchdog_maxinterval; |
8151 | ||
8152 | static struct mutex fan_mutex; | |
778b4d74 | 8153 | |
25c68a33 | 8154 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 8155 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 8156 | |
e0c7dfe7 HMH |
8157 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
8158 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
8159 | "\\FSPD", /* 600e/x, 770e, 770x */ |
8160 | ); /* all others */ | |
e0c7dfe7 | 8161 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
8162 | "JFNS", /* 770x-JL */ |
8163 | ); /* all others */ | |
8164 | ||
1c2ece75 HMH |
8165 | /* |
8166 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
8167 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
8168 | * be in auto mode (0x80). | |
8169 | * | |
8170 | * This is corrected by any write to HFSP either by the driver, or | |
8171 | * by the firmware. | |
8172 | * | |
8173 | * We assume 0x07 really means auto mode while this quirk is active, | |
8174 | * as this is far more likely than the ThinkPad being in level 7, | |
8175 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
8176 | * |
8177 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
8178 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
8179 | */ |
8180 | ||
7d95a3d5 | 8181 | static void fan_quirk1_setup(void) |
1c2ece75 | 8182 | { |
1c2ece75 | 8183 | if (fan_control_initial_status == 0x07) { |
5cac62ac | 8184 | pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n"); |
7d95a3d5 | 8185 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
8186 | } |
8187 | } | |
8188 | ||
8189 | static void fan_quirk1_handle(u8 *fan_status) | |
8190 | { | |
8191 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
8192 | if (*fan_status != fan_control_initial_status) { | |
8193 | /* something changed the HFSP regisnter since | |
8194 | * driver init time, so it is not undefined | |
8195 | * anymore */ | |
8196 | tp_features.fan_ctrl_status_undef = 0; | |
8197 | } else { | |
8198 | /* Return most likely status. In fact, it | |
8199 | * might be the only possible status */ | |
8200 | *fan_status = TP_EC_FAN_AUTO; | |
8201 | } | |
8202 | } | |
8203 | } | |
8204 | ||
d7377247 HMH |
8205 | /* Select main fan on X60/X61, NOOP on others */ |
8206 | static bool fan_select_fan1(void) | |
8207 | { | |
8208 | if (tp_features.second_fan) { | |
8209 | u8 val; | |
8210 | ||
8211 | if (ec_read(fan_select_offset, &val) < 0) | |
8212 | return false; | |
8213 | val &= 0xFEU; | |
8214 | if (ec_write(fan_select_offset, val) < 0) | |
8215 | return false; | |
8216 | } | |
8217 | return true; | |
8218 | } | |
8219 | ||
8220 | /* Select secondary fan on X60/X61 */ | |
8221 | static bool fan_select_fan2(void) | |
8222 | { | |
8223 | u8 val; | |
8224 | ||
8225 | if (!tp_features.second_fan) | |
8226 | return false; | |
8227 | ||
8228 | if (ec_read(fan_select_offset, &val) < 0) | |
8229 | return false; | |
8230 | val |= 0x01U; | |
8231 | if (ec_write(fan_select_offset, val) < 0) | |
8232 | return false; | |
8233 | ||
8234 | return true; | |
8235 | } | |
8236 | ||
fe98a52c | 8237 | /* |
b21a15f6 | 8238 | * Call with fan_mutex held |
fe98a52c | 8239 | */ |
b21a15f6 | 8240 | static void fan_update_desired_level(u8 status) |
fe98a52c | 8241 | { |
b21a15f6 HMH |
8242 | if ((status & |
8243 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8244 | if (status > 7) | |
8245 | fan_control_desired_level = 7; | |
8246 | else | |
8247 | fan_control_desired_level = status; | |
8248 | } | |
8249 | } | |
fe98a52c | 8250 | |
b21a15f6 HMH |
8251 | static int fan_get_status(u8 *status) |
8252 | { | |
8253 | u8 s; | |
fe98a52c | 8254 | |
b21a15f6 HMH |
8255 | /* TODO: |
8256 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 8257 | |
b21a15f6 | 8258 | switch (fan_status_access_mode) { |
eceeb437 | 8259 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 8260 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 8261 | int res; |
fe98a52c | 8262 | |
eceeb437 | 8263 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 8264 | return -EIO; |
fe98a52c | 8265 | |
b21a15f6 | 8266 | if (likely(status)) |
eceeb437 | 8267 | *status = res & 0x07; |
fe98a52c | 8268 | |
b21a15f6 | 8269 | break; |
eceeb437 | 8270 | } |
b21a15f6 HMH |
8271 | case TPACPI_FAN_RD_TPEC: |
8272 | /* all except 570, 600e/x, 770e, 770x */ | |
8273 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
8274 | return -EIO; | |
8275 | ||
1c2ece75 | 8276 | if (likely(status)) { |
b21a15f6 | 8277 | *status = s; |
1c2ece75 HMH |
8278 | fan_quirk1_handle(status); |
8279 | } | |
fe98a52c | 8280 | |
fe98a52c | 8281 | break; |
b21a15f6 | 8282 | |
fe98a52c | 8283 | default: |
b21a15f6 | 8284 | return -ENXIO; |
fe98a52c HMH |
8285 | } |
8286 | ||
b21a15f6 HMH |
8287 | return 0; |
8288 | } | |
fe98a52c | 8289 | |
b21a15f6 HMH |
8290 | static int fan_get_status_safe(u8 *status) |
8291 | { | |
8292 | int rc; | |
8293 | u8 s; | |
fe98a52c | 8294 | |
7646ea88 | 8295 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
8296 | return -ERESTARTSYS; |
8297 | rc = fan_get_status(&s); | |
8298 | if (!rc) | |
8299 | fan_update_desired_level(s); | |
8300 | mutex_unlock(&fan_mutex); | |
fe98a52c | 8301 | |
a7718360 DC |
8302 | if (rc) |
8303 | return rc; | |
b21a15f6 HMH |
8304 | if (status) |
8305 | *status = s; | |
fe98a52c | 8306 | |
a7718360 | 8307 | return 0; |
b21a15f6 HMH |
8308 | } |
8309 | ||
8310 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 8311 | { |
b21a15f6 | 8312 | u8 hi, lo; |
fe98a52c | 8313 | |
b21a15f6 HMH |
8314 | switch (fan_status_access_mode) { |
8315 | case TPACPI_FAN_RD_TPEC: | |
8316 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
8317 | if (unlikely(!fan_select_fan1())) |
8318 | return -EIO; | |
b21a15f6 HMH |
8319 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
8320 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
8321 | return -EIO; | |
fe98a52c | 8322 | |
b21a15f6 HMH |
8323 | if (likely(speed)) |
8324 | *speed = (hi << 8) | lo; | |
fe98a52c | 8325 | |
b21a15f6 | 8326 | break; |
fe98a52c | 8327 | |
b21a15f6 HMH |
8328 | default: |
8329 | return -ENXIO; | |
8330 | } | |
fe98a52c | 8331 | |
b21a15f6 | 8332 | return 0; |
fe98a52c HMH |
8333 | } |
8334 | ||
d7377247 HMH |
8335 | static int fan2_get_speed(unsigned int *speed) |
8336 | { | |
8337 | u8 hi, lo; | |
8338 | bool rc; | |
8339 | ||
8340 | switch (fan_status_access_mode) { | |
8341 | case TPACPI_FAN_RD_TPEC: | |
8342 | /* all except 570, 600e/x, 770e, 770x */ | |
8343 | if (unlikely(!fan_select_fan2())) | |
8344 | return -EIO; | |
8345 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
8346 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
8347 | fan_select_fan1(); /* play it safe */ | |
8348 | if (rc) | |
8349 | return -EIO; | |
8350 | ||
8351 | if (likely(speed)) | |
8352 | *speed = (hi << 8) | lo; | |
8353 | ||
8354 | break; | |
8355 | ||
8356 | default: | |
8357 | return -ENXIO; | |
8358 | } | |
8359 | ||
8360 | return 0; | |
8361 | } | |
8362 | ||
b21a15f6 | 8363 | static int fan_set_level(int level) |
fe98a52c | 8364 | { |
b21a15f6 HMH |
8365 | if (!fan_control_allowed) |
8366 | return -EPERM; | |
fe98a52c | 8367 | |
b21a15f6 HMH |
8368 | switch (fan_control_access_mode) { |
8369 | case TPACPI_FAN_WR_ACPI_SFAN: | |
14232c6e | 8370 | if ((level < 0) || (level > 7)) |
b21a15f6 | 8371 | return -EINVAL; |
14232c6e LH |
8372 | |
8373 | if (tp_features.second_fan_ctl) { | |
8374 | if (!fan_select_fan2() || | |
8375 | !acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) { | |
8376 | pr_warn("Couldn't set 2nd fan level, disabling support\n"); | |
8377 | tp_features.second_fan_ctl = 0; | |
8378 | } | |
8379 | fan_select_fan1(); | |
8380 | } | |
8381 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
8382 | return -EIO; | |
b21a15f6 | 8383 | break; |
fe98a52c | 8384 | |
b21a15f6 HMH |
8385 | case TPACPI_FAN_WR_ACPI_FANS: |
8386 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8387 | if (!(level & TP_EC_FAN_AUTO) && |
8388 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
8389 | ((level < 0) || (level > 7))) |
8390 | return -EINVAL; | |
fe98a52c | 8391 | |
b21a15f6 HMH |
8392 | /* safety net should the EC not support AUTO |
8393 | * or FULLSPEED mode bits and just ignore them */ | |
8394 | if (level & TP_EC_FAN_FULLSPEED) | |
8395 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 8396 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 8397 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 8398 | |
14232c6e LH |
8399 | if (tp_features.second_fan_ctl) { |
8400 | if (!fan_select_fan2() || | |
8401 | !acpi_ec_write(fan_status_offset, level)) { | |
8402 | pr_warn("Couldn't set 2nd fan level, disabling support\n"); | |
8403 | tp_features.second_fan_ctl = 0; | |
8404 | } | |
8405 | fan_select_fan1(); | |
8406 | ||
8407 | } | |
b21a15f6 HMH |
8408 | if (!acpi_ec_write(fan_status_offset, level)) |
8409 | return -EIO; | |
8410 | else | |
8411 | tp_features.fan_ctrl_status_undef = 0; | |
8412 | break; | |
fe98a52c | 8413 | |
b21a15f6 HMH |
8414 | default: |
8415 | return -ENXIO; | |
8416 | } | |
74a60c0f HMH |
8417 | |
8418 | vdbg_printk(TPACPI_DBG_FAN, | |
8419 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 8420 | return 0; |
fe98a52c HMH |
8421 | } |
8422 | ||
b21a15f6 | 8423 | static int fan_set_level_safe(int level) |
fe98a52c | 8424 | { |
b21a15f6 | 8425 | int rc; |
fe98a52c | 8426 | |
b21a15f6 HMH |
8427 | if (!fan_control_allowed) |
8428 | return -EPERM; | |
fe98a52c | 8429 | |
7646ea88 | 8430 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8431 | return -ERESTARTSYS; |
fe98a52c | 8432 | |
b21a15f6 HMH |
8433 | if (level == TPACPI_FAN_LAST_LEVEL) |
8434 | level = fan_control_desired_level; | |
fe98a52c | 8435 | |
b21a15f6 HMH |
8436 | rc = fan_set_level(level); |
8437 | if (!rc) | |
8438 | fan_update_desired_level(level); | |
8439 | ||
8440 | mutex_unlock(&fan_mutex); | |
8441 | return rc; | |
fe98a52c HMH |
8442 | } |
8443 | ||
b21a15f6 | 8444 | static int fan_set_enable(void) |
fe98a52c | 8445 | { |
b21a15f6 HMH |
8446 | u8 s; |
8447 | int rc; | |
fe98a52c | 8448 | |
ecf2a80a HMH |
8449 | if (!fan_control_allowed) |
8450 | return -EPERM; | |
8451 | ||
7646ea88 | 8452 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8453 | return -ERESTARTSYS; |
fe98a52c | 8454 | |
b21a15f6 HMH |
8455 | switch (fan_control_access_mode) { |
8456 | case TPACPI_FAN_WR_ACPI_FANS: | |
8457 | case TPACPI_FAN_WR_TPEC: | |
8458 | rc = fan_get_status(&s); | |
8459 | if (rc < 0) | |
8460 | break; | |
fe98a52c | 8461 | |
b21a15f6 HMH |
8462 | /* Don't go out of emergency fan mode */ |
8463 | if (s != 7) { | |
8464 | s &= 0x07; | |
8465 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
8466 | } | |
fe98a52c | 8467 | |
b21a15f6 HMH |
8468 | if (!acpi_ec_write(fan_status_offset, s)) |
8469 | rc = -EIO; | |
8470 | else { | |
8471 | tp_features.fan_ctrl_status_undef = 0; | |
8472 | rc = 0; | |
8473 | } | |
8474 | break; | |
fe98a52c | 8475 | |
b21a15f6 HMH |
8476 | case TPACPI_FAN_WR_ACPI_SFAN: |
8477 | rc = fan_get_status(&s); | |
8478 | if (rc < 0) | |
8479 | break; | |
fe98a52c | 8480 | |
b21a15f6 | 8481 | s &= 0x07; |
fe98a52c | 8482 | |
b21a15f6 HMH |
8483 | /* Set fan to at least level 4 */ |
8484 | s |= 4; | |
fe08bc4b | 8485 | |
b21a15f6 | 8486 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 8487 | rc = -EIO; |
b21a15f6 HMH |
8488 | else |
8489 | rc = 0; | |
8490 | break; | |
78f81cc4 | 8491 | |
b21a15f6 HMH |
8492 | default: |
8493 | rc = -ENXIO; | |
8494 | } | |
5fba344c | 8495 | |
b21a15f6 | 8496 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
8497 | |
8498 | if (!rc) | |
8499 | vdbg_printk(TPACPI_DBG_FAN, | |
8500 | "fan control: set fan control register to 0x%02x\n", | |
8501 | s); | |
b21a15f6 | 8502 | return rc; |
69ba91cb | 8503 | } |
78f81cc4 | 8504 | |
b21a15f6 | 8505 | static int fan_set_disable(void) |
78f81cc4 | 8506 | { |
b21a15f6 | 8507 | int rc; |
c52f0aa5 | 8508 | |
b21a15f6 HMH |
8509 | if (!fan_control_allowed) |
8510 | return -EPERM; | |
78f81cc4 | 8511 | |
7646ea88 | 8512 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8513 | return -ERESTARTSYS; |
3ef8a609 | 8514 | |
b21a15f6 HMH |
8515 | rc = 0; |
8516 | switch (fan_control_access_mode) { | |
8517 | case TPACPI_FAN_WR_ACPI_FANS: | |
8518 | case TPACPI_FAN_WR_TPEC: | |
8519 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
8520 | rc = -EIO; | |
8521 | else { | |
8522 | fan_control_desired_level = 0; | |
8523 | tp_features.fan_ctrl_status_undef = 0; | |
8524 | } | |
3ef8a609 HMH |
8525 | break; |
8526 | ||
b21a15f6 HMH |
8527 | case TPACPI_FAN_WR_ACPI_SFAN: |
8528 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
8529 | rc = -EIO; | |
8530 | else | |
8531 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
8532 | break; |
8533 | ||
8534 | default: | |
b21a15f6 | 8535 | rc = -ENXIO; |
78f81cc4 BD |
8536 | } |
8537 | ||
74a60c0f HMH |
8538 | if (!rc) |
8539 | vdbg_printk(TPACPI_DBG_FAN, | |
8540 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 8541 | |
fe98a52c | 8542 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
8543 | return rc; |
8544 | } | |
8545 | ||
b21a15f6 | 8546 | static int fan_set_speed(int speed) |
c52f0aa5 | 8547 | { |
b21a15f6 | 8548 | int rc; |
c52f0aa5 | 8549 | |
b21a15f6 HMH |
8550 | if (!fan_control_allowed) |
8551 | return -EPERM; | |
3ef8a609 | 8552 | |
7646ea88 | 8553 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8554 | return -ERESTARTSYS; |
c52f0aa5 | 8555 | |
b21a15f6 HMH |
8556 | rc = 0; |
8557 | switch (fan_control_access_mode) { | |
8558 | case TPACPI_FAN_WR_ACPI_FANS: | |
8559 | if (speed >= 0 && speed <= 65535) { | |
8560 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8561 | speed, speed, speed)) | |
8562 | rc = -EIO; | |
8563 | } else | |
8564 | rc = -EINVAL; | |
c52f0aa5 HMH |
8565 | break; |
8566 | ||
8567 | default: | |
b21a15f6 | 8568 | rc = -ENXIO; |
c52f0aa5 HMH |
8569 | } |
8570 | ||
b21a15f6 HMH |
8571 | mutex_unlock(&fan_mutex); |
8572 | return rc; | |
16663a87 HMH |
8573 | } |
8574 | ||
8575 | static void fan_watchdog_reset(void) | |
8576 | { | |
4985cd0a HMH |
8577 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8578 | return; | |
8579 | ||
8fef502e | 8580 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8581 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8582 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8583 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8584 | else | |
8585 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8586 | } |
8587 | ||
b21a15f6 | 8588 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8589 | { |
b21a15f6 | 8590 | int rc; |
18ad7996 | 8591 | |
b21a15f6 HMH |
8592 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8593 | return; | |
a12095c2 | 8594 | |
0978e012 | 8595 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8596 | rc = fan_set_enable(); |
8597 | if (rc < 0) { | |
5cac62ac AS |
8598 | pr_err("fan watchdog: error %d while enabling fan, will try again later...\n", |
8599 | rc); | |
b21a15f6 HMH |
8600 | /* reschedule for later */ |
8601 | fan_watchdog_reset(); | |
8602 | } | |
8603 | } | |
eaa7571b | 8604 | |
b21a15f6 HMH |
8605 | /* |
8606 | * SYSFS fan layout: hwmon compatible (device) | |
8607 | * | |
8608 | * pwm*_enable: | |
8609 | * 0: "disengaged" mode | |
8610 | * 1: manual mode | |
8611 | * 2: native EC "auto" mode (recommended, hardware default) | |
8612 | * | |
8613 | * pwm*: set speed in manual mode, ignored otherwise. | |
8614 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8615 | * interpolation. | |
8616 | * | |
8617 | * fan*_input: tachometer reading, RPM | |
8618 | * | |
8619 | * | |
8620 | * SYSFS fan layout: extensions | |
8621 | * | |
8622 | * fan_watchdog (driver): | |
8623 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8624 | */ | |
8625 | ||
8626 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8627 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8628 | struct device_attribute *attr, | |
8629 | char *buf) | |
8630 | { | |
8631 | int res, mode; | |
8632 | u8 status; | |
8633 | ||
8634 | res = fan_get_status_safe(&status); | |
8635 | if (res) | |
8636 | return res; | |
8637 | ||
b21a15f6 HMH |
8638 | if (status & TP_EC_FAN_FULLSPEED) { |
8639 | mode = 0; | |
8640 | } else if (status & TP_EC_FAN_AUTO) { | |
8641 | mode = 2; | |
8642 | } else | |
8643 | mode = 1; | |
8644 | ||
8645 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8646 | } | |
a12095c2 | 8647 | |
b21a15f6 HMH |
8648 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8649 | struct device_attribute *attr, | |
8650 | const char *buf, size_t count) | |
8651 | { | |
8652 | unsigned long t; | |
8653 | int res, level; | |
8654 | ||
8655 | if (parse_strtoul(buf, 2, &t)) | |
8656 | return -EINVAL; | |
8657 | ||
74a60c0f HMH |
8658 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8659 | "set fan mode to %lu\n", t); | |
8660 | ||
b21a15f6 HMH |
8661 | switch (t) { |
8662 | case 0: | |
8663 | level = TP_EC_FAN_FULLSPEED; | |
8664 | break; | |
8665 | case 1: | |
8666 | level = TPACPI_FAN_LAST_LEVEL; | |
8667 | break; | |
8668 | case 2: | |
8669 | level = TP_EC_FAN_AUTO; | |
8670 | break; | |
8671 | case 3: | |
8672 | /* reserved for software-controlled auto mode */ | |
8673 | return -ENOSYS; | |
18ad7996 | 8674 | default: |
b21a15f6 | 8675 | return -EINVAL; |
18ad7996 | 8676 | } |
b21a15f6 HMH |
8677 | |
8678 | res = fan_set_level_safe(level); | |
8679 | if (res == -ENXIO) | |
8680 | return -EINVAL; | |
8681 | else if (res < 0) | |
8682 | return res; | |
8683 | ||
8684 | fan_watchdog_reset(); | |
8685 | ||
8686 | return count; | |
18ad7996 HMH |
8687 | } |
8688 | ||
5fb73bc2 BM |
8689 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8690 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8691 | |
8692 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8693 | static ssize_t fan_pwm1_show(struct device *dev, | |
8694 | struct device_attribute *attr, | |
8695 | char *buf) | |
fe98a52c | 8696 | { |
b21a15f6 HMH |
8697 | int res; |
8698 | u8 status; | |
fe98a52c | 8699 | |
b21a15f6 HMH |
8700 | res = fan_get_status_safe(&status); |
8701 | if (res) | |
8702 | return res; | |
ecf2a80a | 8703 | |
b21a15f6 HMH |
8704 | if ((status & |
8705 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8706 | status = fan_control_desired_level; | |
fe98a52c | 8707 | |
b21a15f6 HMH |
8708 | if (status > 7) |
8709 | status = 7; | |
fe98a52c | 8710 | |
b21a15f6 | 8711 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8712 | } |
8713 | ||
b21a15f6 HMH |
8714 | static ssize_t fan_pwm1_store(struct device *dev, |
8715 | struct device_attribute *attr, | |
8716 | const char *buf, size_t count) | |
18ad7996 | 8717 | { |
b21a15f6 | 8718 | unsigned long s; |
1c6a334e | 8719 | int rc; |
b21a15f6 | 8720 | u8 status, newlevel; |
1c6a334e | 8721 | |
b21a15f6 HMH |
8722 | if (parse_strtoul(buf, 255, &s)) |
8723 | return -EINVAL; | |
8724 | ||
74a60c0f HMH |
8725 | tpacpi_disclose_usertask("hwmon pwm1", |
8726 | "set fan speed to %lu\n", s); | |
8727 | ||
b21a15f6 HMH |
8728 | /* scale down from 0-255 to 0-7 */ |
8729 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8730 | |
7646ea88 | 8731 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8732 | return -ERESTARTSYS; |
40ca9fdf | 8733 | |
b21a15f6 HMH |
8734 | rc = fan_get_status(&status); |
8735 | if (!rc && (status & | |
8736 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8737 | rc = fan_set_level(newlevel); | |
8738 | if (rc == -ENXIO) | |
8739 | rc = -EINVAL; | |
8740 | else if (!rc) { | |
8741 | fan_update_desired_level(newlevel); | |
8742 | fan_watchdog_reset(); | |
eaa7571b | 8743 | } |
b21a15f6 | 8744 | } |
1c6a334e | 8745 | |
b21a15f6 | 8746 | mutex_unlock(&fan_mutex); |
72a979f0 | 8747 | return (rc) ? rc : count; |
b21a15f6 | 8748 | } |
1c6a334e | 8749 | |
5fb73bc2 | 8750 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8751 | |
b21a15f6 HMH |
8752 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8753 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8754 | struct device_attribute *attr, | |
8755 | char *buf) | |
8756 | { | |
8757 | int res; | |
8758 | unsigned int speed; | |
1c6a334e | 8759 | |
b21a15f6 HMH |
8760 | res = fan_get_speed(&speed); |
8761 | if (res < 0) | |
8762 | return res; | |
1c6a334e | 8763 | |
b21a15f6 HMH |
8764 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8765 | } | |
18ad7996 | 8766 | |
5fb73bc2 | 8767 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8768 | |
d7377247 HMH |
8769 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8770 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8771 | struct device_attribute *attr, | |
8772 | char *buf) | |
8773 | { | |
8774 | int res; | |
8775 | unsigned int speed; | |
8776 | ||
8777 | res = fan2_get_speed(&speed); | |
8778 | if (res < 0) | |
8779 | return res; | |
8780 | ||
8781 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8782 | } | |
8783 | ||
5fb73bc2 | 8784 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8785 | |
b21a15f6 | 8786 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
ac3054c4 | 8787 | static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
8788 | { |
8789 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8790 | } |
8791 | ||
ac3054c4 GKH |
8792 | static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf, |
8793 | size_t count) | |
18ad7996 | 8794 | { |
b21a15f6 HMH |
8795 | unsigned long t; |
8796 | ||
8797 | if (parse_strtoul(buf, 120, &t)) | |
8798 | return -EINVAL; | |
40ca9fdf | 8799 | |
ecf2a80a HMH |
8800 | if (!fan_control_allowed) |
8801 | return -EPERM; | |
8802 | ||
b21a15f6 HMH |
8803 | fan_watchdog_maxinterval = t; |
8804 | fan_watchdog_reset(); | |
40ca9fdf | 8805 | |
74a60c0f HMH |
8806 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8807 | ||
b21a15f6 HMH |
8808 | return count; |
8809 | } | |
ac3054c4 | 8810 | static DRIVER_ATTR_RW(fan_watchdog); |
b21a15f6 HMH |
8811 | |
8812 | /* --------------------------------------------------------------------- */ | |
8813 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8814 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8815 | &dev_attr_fan1_input.attr, | |
d7377247 | 8816 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8817 | NULL |
8818 | }; | |
8819 | ||
8820 | static const struct attribute_group fan_attr_group = { | |
8821 | .attrs = fan_attributes, | |
8822 | }; | |
8823 | ||
599eefff | 8824 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
d7377247 | 8825 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ |
14232c6e | 8826 | #define TPACPI_FAN_2CTL 0x0004 /* selects fan2 control */ |
7d95a3d5 | 8827 | |
7d95a3d5 | 8828 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
599eefff JW |
8829 | TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1), |
8830 | TPACPI_QEC_IBM('7', '8', TPACPI_FAN_Q1), | |
8831 | TPACPI_QEC_IBM('7', '6', TPACPI_FAN_Q1), | |
8832 | TPACPI_QEC_IBM('7', '0', TPACPI_FAN_Q1), | |
8833 | TPACPI_QEC_LNV('7', 'M', TPACPI_FAN_2FAN), | |
8834 | TPACPI_Q_LNV('N', '1', TPACPI_FAN_2FAN), | |
14232c6e LH |
8835 | TPACPI_Q_LNV3('N', '1', 'D', TPACPI_FAN_2CTL), /* P70 */ |
8836 | TPACPI_Q_LNV3('N', '1', 'E', TPACPI_FAN_2CTL), /* P50 */ | |
8837 | TPACPI_Q_LNV3('N', '1', 'T', TPACPI_FAN_2CTL), /* P71 */ | |
8838 | TPACPI_Q_LNV3('N', '1', 'U', TPACPI_FAN_2CTL), /* P51 */ | |
8839 | TPACPI_Q_LNV3('N', '2', 'C', TPACPI_FAN_2CTL), /* P52 / P72 */ | |
c47c0429 | 8840 | TPACPI_Q_LNV3('N', '2', 'N', TPACPI_FAN_2CTL), /* P53 / P73 */ |
14232c6e LH |
8841 | TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (1st gen) */ |
8842 | TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (2nd gen) */ | |
c758be8e | 8843 | TPACPI_Q_LNV3('N', '2', 'V', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (3nd gen) */ |
0bd90cba | 8844 | TPACPI_Q_LNV3('N', '4', '0', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (4nd gen) */ |
e8637dfc | 8845 | TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */ |
25acf21f | 8846 | TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th gen) */ |
7d95a3d5 HMH |
8847 | }; |
8848 | ||
b21a15f6 HMH |
8849 | static int __init fan_init(struct ibm_init_struct *iibm) |
8850 | { | |
8851 | int rc; | |
7d95a3d5 | 8852 | unsigned long quirks; |
b21a15f6 | 8853 | |
74a60c0f HMH |
8854 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8855 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8856 | |
8857 | mutex_init(&fan_mutex); | |
8858 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8859 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8860 | fan_control_commands = 0; | |
8861 | fan_watchdog_maxinterval = 0; | |
8862 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8863 | tp_features.second_fan = 0; |
14232c6e | 8864 | tp_features.second_fan_ctl = 0; |
b21a15f6 HMH |
8865 | fan_control_desired_level = 7; |
8866 | ||
e28393c0 HMH |
8867 | if (tpacpi_is_ibm()) { |
8868 | TPACPI_ACPIHANDLE_INIT(fans); | |
8869 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8870 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8871 | } | |
b21a15f6 | 8872 | |
7d95a3d5 HMH |
8873 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8874 | ARRAY_SIZE(fan_quirk_table)); | |
8875 | ||
b21a15f6 HMH |
8876 | if (gfan_handle) { |
8877 | /* 570, 600e/x, 770e, 770x */ | |
8878 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8879 | } else { | |
8880 | /* all other ThinkPads: note that even old-style | |
8881 | * ThinkPad ECs supports the fan control register */ | |
8882 | if (likely(acpi_ec_read(fan_status_offset, | |
8883 | &fan_control_initial_status))) { | |
8884 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8885 | if (quirks & TPACPI_FAN_Q1) |
8886 | fan_quirk1_setup(); | |
d7377247 HMH |
8887 | if (quirks & TPACPI_FAN_2FAN) { |
8888 | tp_features.second_fan = 1; | |
14232c6e LH |
8889 | pr_info("secondary fan support enabled\n"); |
8890 | } | |
8891 | if (quirks & TPACPI_FAN_2CTL) { | |
8892 | tp_features.second_fan = 1; | |
8893 | tp_features.second_fan_ctl = 1; | |
8894 | pr_info("secondary fan control enabled\n"); | |
d7377247 | 8895 | } |
b21a15f6 | 8896 | } else { |
5cac62ac | 8897 | pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n"); |
b21a15f6 HMH |
8898 | return 1; |
8899 | } | |
8900 | } | |
8901 | ||
8902 | if (sfan_handle) { | |
8903 | /* 570, 770x-JL */ | |
8904 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8905 | fan_control_commands |= | |
8906 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8907 | } else { | |
8908 | if (!gfan_handle) { | |
8909 | /* gfan without sfan means no fan control */ | |
8910 | /* all other models implement TP EC 0x2f control */ | |
8911 | ||
8912 | if (fans_handle) { | |
8913 | /* X31, X40, X41 */ | |
8914 | fan_control_access_mode = | |
8915 | TPACPI_FAN_WR_ACPI_FANS; | |
8916 | fan_control_commands |= | |
8917 | TPACPI_FAN_CMD_SPEED | | |
8918 | TPACPI_FAN_CMD_LEVEL | | |
8919 | TPACPI_FAN_CMD_ENABLE; | |
8920 | } else { | |
8921 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8922 | fan_control_commands |= | |
8923 | TPACPI_FAN_CMD_LEVEL | | |
8924 | TPACPI_FAN_CMD_ENABLE; | |
8925 | } | |
fe98a52c | 8926 | } |
b21a15f6 | 8927 | } |
18ad7996 | 8928 | |
74a60c0f HMH |
8929 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8930 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8931 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8932 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8933 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8934 | |
b21a15f6 HMH |
8935 | /* fan control master switch */ |
8936 | if (!fan_control_allowed) { | |
8937 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8938 | fan_control_commands = 0; | |
74a60c0f | 8939 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8940 | "fan control features disabled by parameter\n"); |
18ad7996 | 8941 | } |
40ca9fdf | 8942 | |
b21a15f6 HMH |
8943 | /* update fan_control_desired_level */ |
8944 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8945 | fan_get_status_safe(NULL); | |
fe98a52c | 8946 | |
b21a15f6 HMH |
8947 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8948 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8949 | if (tp_features.second_fan) { |
8950 | /* attach second fan tachometer */ | |
8951 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8952 | &dev_attr_fan2_input.attr; |
d7377247 | 8953 | } |
6b99e356 | 8954 | rc = sysfs_create_group(&tpacpi_hwmon->kobj, |
b21a15f6 | 8955 | &fan_attr_group); |
b21a15f6 HMH |
8956 | if (rc < 0) |
8957 | return rc; | |
9c0a76e1 HMH |
8958 | |
8959 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8960 | &driver_attr_fan_watchdog); | |
8961 | if (rc < 0) { | |
6b99e356 | 8962 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
9c0a76e1 HMH |
8963 | &fan_attr_group); |
8964 | return rc; | |
8965 | } | |
b21a15f6 HMH |
8966 | return 0; |
8967 | } else | |
8968 | return 1; | |
56b6aeb0 HMH |
8969 | } |
8970 | ||
b21a15f6 | 8971 | static void fan_exit(void) |
56b6aeb0 | 8972 | { |
74a60c0f | 8973 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8974 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8975 | |
b21a15f6 | 8976 | /* FIXME: can we really do this unconditionally? */ |
6b99e356 | 8977 | sysfs_remove_group(&tpacpi_hwmon->kobj, &fan_attr_group); |
35ff8b9f HMH |
8978 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8979 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8980 | |
b21a15f6 | 8981 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8982 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8983 | } |
8984 | ||
fd3c3a42 | 8985 | static void fan_suspend(void) |
75700e53 | 8986 | { |
0081b162 HMH |
8987 | int rc; |
8988 | ||
75700e53 HMH |
8989 | if (!fan_control_allowed) |
8990 | return; | |
8991 | ||
8992 | /* Store fan status in cache */ | |
0081b162 HMH |
8993 | fan_control_resume_level = 0; |
8994 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8995 | if (rc < 0) | |
5cac62ac AS |
8996 | pr_notice("failed to read fan level for later restore during resume: %d\n", |
8997 | rc); | |
0081b162 HMH |
8998 | |
8999 | /* if it is undefined, don't attempt to restore it. | |
9000 | * KEEP THIS LAST */ | |
75700e53 | 9001 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 9002 | fan_control_resume_level = 0; |
75700e53 HMH |
9003 | } |
9004 | ||
9005 | static void fan_resume(void) | |
9006 | { | |
75700e53 HMH |
9007 | u8 current_level = 7; |
9008 | bool do_set = false; | |
0081b162 | 9009 | int rc; |
75700e53 HMH |
9010 | |
9011 | /* DSDT *always* updates status on resume */ | |
9012 | tp_features.fan_ctrl_status_undef = 0; | |
9013 | ||
75700e53 | 9014 | if (!fan_control_allowed || |
0081b162 | 9015 | !fan_control_resume_level || |
75700e53 HMH |
9016 | (fan_get_status_safe(¤t_level) < 0)) |
9017 | return; | |
9018 | ||
9019 | switch (fan_control_access_mode) { | |
9020 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
9021 | /* never decrease fan level */ |
9022 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
9023 | break; |
9024 | case TPACPI_FAN_WR_ACPI_FANS: | |
9025 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
9026 | /* never decrease fan level, scale is: |
9027 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
9028 | * | |
9029 | * We expect the firmware to set either 7 or AUTO, but we | |
9030 | * handle FULLSPEED out of paranoia. | |
9031 | * | |
9032 | * So, we can safely only restore FULLSPEED or 7, anything | |
9033 | * else could slow the fan. Restoring AUTO is useless, at | |
9034 | * best that's exactly what the DSDT already set (it is the | |
9035 | * slower it uses). | |
9036 | * | |
9037 | * Always keep in mind that the DSDT *will* have set the | |
9038 | * fans to what the vendor supposes is the best level. We | |
9039 | * muck with it only to speed the fan up. | |
9040 | */ | |
9041 | if (fan_control_resume_level != 7 && | |
9042 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
9043 | return; | |
9044 | else | |
9045 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
9046 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
9047 | break; |
9048 | default: | |
9049 | return; | |
9050 | } | |
9051 | if (do_set) { | |
0978e012 JP |
9052 | pr_notice("restoring fan level to 0x%02x\n", |
9053 | fan_control_resume_level); | |
0081b162 HMH |
9054 | rc = fan_set_level_safe(fan_control_resume_level); |
9055 | if (rc < 0) | |
0978e012 | 9056 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
9057 | } |
9058 | } | |
9059 | ||
887965e6 | 9060 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 9061 | { |
56b6aeb0 HMH |
9062 | int rc; |
9063 | u8 status; | |
9064 | unsigned int speed = 0; | |
9065 | ||
9066 | switch (fan_status_access_mode) { | |
efa27145 | 9067 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 9068 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
9069 | rc = fan_get_status_safe(&status); |
9070 | if (rc < 0) | |
56b6aeb0 HMH |
9071 | return rc; |
9072 | ||
887965e6 | 9073 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
9074 | "level:\t\t%d\n", |
9075 | (status != 0) ? "enabled" : "disabled", status); | |
9076 | break; | |
9077 | ||
efa27145 | 9078 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 9079 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
9080 | rc = fan_get_status_safe(&status); |
9081 | if (rc < 0) | |
56b6aeb0 HMH |
9082 | return rc; |
9083 | ||
887965e6 | 9084 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
9085 | (status != 0) ? "enabled" : "disabled"); |
9086 | ||
35ff8b9f HMH |
9087 | rc = fan_get_speed(&speed); |
9088 | if (rc < 0) | |
56b6aeb0 HMH |
9089 | return rc; |
9090 | ||
887965e6 | 9091 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 9092 | |
efa27145 | 9093 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 9094 | /* Disengaged mode takes precedence */ |
887965e6 | 9095 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 9096 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 9097 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 9098 | else |
887965e6 | 9099 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
9100 | break; |
9101 | ||
efa27145 | 9102 | case TPACPI_FAN_NONE: |
56b6aeb0 | 9103 | default: |
887965e6 | 9104 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
9105 | } |
9106 | ||
efa27145 | 9107 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 9108 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
9109 | |
9110 | switch (fan_control_access_mode) { | |
efa27145 | 9111 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 9112 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
9113 | break; |
9114 | ||
9115 | default: | |
5cac62ac | 9116 | seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
9117 | break; |
9118 | } | |
9119 | } | |
18ad7996 | 9120 | |
efa27145 | 9121 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 9122 | seq_printf(m, "commands:\tenable, disable\n" |
5cac62ac | 9123 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n"); |
1da177e4 | 9124 | |
efa27145 | 9125 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
5cac62ac | 9126 | seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n"); |
56b6aeb0 | 9127 | |
887965e6 | 9128 | return 0; |
78f81cc4 BD |
9129 | } |
9130 | ||
18ad7996 HMH |
9131 | static int fan_write_cmd_level(const char *cmd, int *rc) |
9132 | { | |
9133 | int level; | |
9134 | ||
a12095c2 | 9135 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 9136 | level = TP_EC_FAN_AUTO; |
dc76ec33 | 9137 | else if ((strlencmp(cmd, "level disengaged") == 0) || |
35ff8b9f | 9138 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 9139 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 9140 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
9141 | return 0; |
9142 | ||
35ff8b9f HMH |
9143 | *rc = fan_set_level_safe(level); |
9144 | if (*rc == -ENXIO) | |
0978e012 JP |
9145 | pr_err("level command accepted for unsupported access mode %d\n", |
9146 | fan_control_access_mode); | |
74a60c0f HMH |
9147 | else if (!*rc) |
9148 | tpacpi_disclose_usertask("procfs fan", | |
9149 | "set level to %d\n", level); | |
18ad7996 HMH |
9150 | |
9151 | return 1; | |
9152 | } | |
9153 | ||
9154 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
9155 | { | |
9156 | if (strlencmp(cmd, "enable") != 0) | |
9157 | return 0; | |
9158 | ||
35ff8b9f HMH |
9159 | *rc = fan_set_enable(); |
9160 | if (*rc == -ENXIO) | |
0978e012 JP |
9161 | pr_err("enable command accepted for unsupported access mode %d\n", |
9162 | fan_control_access_mode); | |
74a60c0f HMH |
9163 | else if (!*rc) |
9164 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
9165 | |
9166 | return 1; | |
9167 | } | |
9168 | ||
9169 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
9170 | { | |
9171 | if (strlencmp(cmd, "disable") != 0) | |
9172 | return 0; | |
9173 | ||
35ff8b9f HMH |
9174 | *rc = fan_set_disable(); |
9175 | if (*rc == -ENXIO) | |
0978e012 JP |
9176 | pr_err("disable command accepted for unsupported access mode %d\n", |
9177 | fan_control_access_mode); | |
74a60c0f HMH |
9178 | else if (!*rc) |
9179 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
9180 | |
9181 | return 1; | |
9182 | } | |
9183 | ||
9184 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
9185 | { | |
9186 | int speed; | |
9187 | ||
a8b7a662 HMH |
9188 | /* TODO: |
9189 | * Support speed <low> <medium> <high> ? */ | |
9190 | ||
18ad7996 HMH |
9191 | if (sscanf(cmd, "speed %d", &speed) != 1) |
9192 | return 0; | |
9193 | ||
35ff8b9f HMH |
9194 | *rc = fan_set_speed(speed); |
9195 | if (*rc == -ENXIO) | |
0978e012 JP |
9196 | pr_err("speed command accepted for unsupported access mode %d\n", |
9197 | fan_control_access_mode); | |
74a60c0f HMH |
9198 | else if (!*rc) |
9199 | tpacpi_disclose_usertask("procfs fan", | |
9200 | "set speed to %d\n", speed); | |
18ad7996 HMH |
9201 | |
9202 | return 1; | |
9203 | } | |
9204 | ||
16663a87 HMH |
9205 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
9206 | { | |
9207 | int interval; | |
9208 | ||
9209 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
9210 | return 0; | |
9211 | ||
9212 | if (interval < 0 || interval > 120) | |
9213 | *rc = -EINVAL; | |
74a60c0f | 9214 | else { |
16663a87 | 9215 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
9216 | tpacpi_disclose_usertask("procfs fan", |
9217 | "set watchdog timer to %d\n", | |
9218 | interval); | |
9219 | } | |
16663a87 HMH |
9220 | |
9221 | return 1; | |
9222 | } | |
9223 | ||
18ad7996 HMH |
9224 | static int fan_write(char *buf) |
9225 | { | |
9226 | char *cmd; | |
9227 | int rc = 0; | |
9228 | ||
be51bd45 | 9229 | while (!rc && (cmd = strsep(&buf, ","))) { |
efa27145 | 9230 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 9231 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 9232 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 9233 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
9234 | fan_write_cmd_disable(cmd, &rc) || |
9235 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 9236 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
9237 | fan_write_cmd_speed(cmd, &rc)) |
9238 | ) | |
9239 | rc = -EINVAL; | |
16663a87 HMH |
9240 | else if (!rc) |
9241 | fan_watchdog_reset(); | |
18ad7996 HMH |
9242 | } |
9243 | ||
9244 | return rc; | |
9245 | } | |
9246 | ||
a5763f22 HMH |
9247 | static struct ibm_struct fan_driver_data = { |
9248 | .name = "fan", | |
9249 | .read = fan_read, | |
9250 | .write = fan_write, | |
9251 | .exit = fan_exit, | |
75700e53 HMH |
9252 | .suspend = fan_suspend, |
9253 | .resume = fan_resume, | |
a5763f22 HMH |
9254 | }; |
9255 | ||
420f9739 DH |
9256 | /************************************************************************* |
9257 | * Mute LED subdriver | |
9258 | */ | |
9259 | ||
9e908a18 | 9260 | #define TPACPI_LED_MAX 2 |
420f9739 DH |
9261 | |
9262 | struct tp_led_table { | |
9263 | acpi_string name; | |
9264 | int on_value; | |
9265 | int off_value; | |
9266 | int state; | |
9267 | }; | |
9268 | ||
9e908a18 TI |
9269 | static struct tp_led_table led_tables[TPACPI_LED_MAX] = { |
9270 | [LED_AUDIO_MUTE] = { | |
420f9739 DH |
9271 | .name = "SSMS", |
9272 | .on_value = 1, | |
9273 | .off_value = 0, | |
9274 | }, | |
9e908a18 | 9275 | [LED_AUDIO_MICMUTE] = { |
420f9739 DH |
9276 | .name = "MMTS", |
9277 | .on_value = 2, | |
9278 | .off_value = 0, | |
9279 | }, | |
9280 | }; | |
9281 | ||
9282 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
9283 | { | |
9284 | acpi_handle temp; | |
9285 | int output; | |
9286 | ||
3526ecad | 9287 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 DH |
9288 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); |
9289 | return -EIO; | |
9290 | } | |
9291 | ||
9292 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
9293 | state ? t->on_value : t->off_value)) | |
9294 | return -EIO; | |
9295 | ||
9296 | t->state = state; | |
9297 | return state; | |
9298 | } | |
9299 | ||
9e908a18 | 9300 | static int tpacpi_led_set(int whichled, bool on) |
420f9739 DH |
9301 | { |
9302 | struct tp_led_table *t; | |
9303 | ||
420f9739 DH |
9304 | t = &led_tables[whichled]; |
9305 | if (t->state < 0 || t->state == on) | |
9306 | return t->state; | |
9307 | return mute_led_on_off(t, on); | |
9308 | } | |
420f9739 | 9309 | |
4e1d0924 TI |
9310 | static int tpacpi_led_mute_set(struct led_classdev *led_cdev, |
9311 | enum led_brightness brightness) | |
9312 | { | |
9e908a18 | 9313 | return tpacpi_led_set(LED_AUDIO_MUTE, brightness != LED_OFF); |
4e1d0924 TI |
9314 | } |
9315 | ||
9316 | static int tpacpi_led_micmute_set(struct led_classdev *led_cdev, | |
9317 | enum led_brightness brightness) | |
9318 | { | |
9e908a18 | 9319 | return tpacpi_led_set(LED_AUDIO_MICMUTE, brightness != LED_OFF); |
4e1d0924 TI |
9320 | } |
9321 | ||
9e908a18 TI |
9322 | static struct led_classdev mute_led_cdev[TPACPI_LED_MAX] = { |
9323 | [LED_AUDIO_MUTE] = { | |
4e1d0924 TI |
9324 | .name = "platform::mute", |
9325 | .max_brightness = 1, | |
9326 | .brightness_set_blocking = tpacpi_led_mute_set, | |
9327 | .default_trigger = "audio-mute", | |
9328 | }, | |
9e908a18 | 9329 | [LED_AUDIO_MICMUTE] = { |
4e1d0924 TI |
9330 | .name = "platform::micmute", |
9331 | .max_brightness = 1, | |
9332 | .brightness_set_blocking = tpacpi_led_micmute_set, | |
9333 | .default_trigger = "audio-micmute", | |
9334 | }, | |
9335 | }; | |
420f9739 DH |
9336 | |
9337 | static int mute_led_init(struct ibm_init_struct *iibm) | |
9338 | { | |
9339 | acpi_handle temp; | |
4e1d0924 | 9340 | int i, err; |
420f9739 DH |
9341 | |
9342 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9343 | struct tp_led_table *t = &led_tables[i]; | |
4e1d0924 | 9344 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 | 9345 | t->state = -ENODEV; |
4e1d0924 TI |
9346 | continue; |
9347 | } | |
9348 | ||
9e908a18 | 9349 | mute_led_cdev[i].brightness = ledtrig_audio_get(i); |
4e1d0924 TI |
9350 | err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]); |
9351 | if (err < 0) { | |
41f80046 AS |
9352 | while (i--) |
9353 | led_classdev_unregister(&mute_led_cdev[i]); | |
4e1d0924 TI |
9354 | return err; |
9355 | } | |
420f9739 DH |
9356 | } |
9357 | return 0; | |
9358 | } | |
9359 | ||
9360 | static void mute_led_exit(void) | |
9361 | { | |
9362 | int i; | |
9363 | ||
4e1d0924 | 9364 | for (i = 0; i < TPACPI_LED_MAX; i++) { |
41f80046 AS |
9365 | led_classdev_unregister(&mute_led_cdev[i]); |
9366 | tpacpi_led_set(i, false); | |
4e1d0924 | 9367 | } |
420f9739 DH |
9368 | } |
9369 | ||
119f4498 TI |
9370 | static void mute_led_resume(void) |
9371 | { | |
9372 | int i; | |
9373 | ||
9374 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9375 | struct tp_led_table *t = &led_tables[i]; | |
9376 | if (t->state >= 0) | |
9377 | mute_led_on_off(t, t->state); | |
9378 | } | |
9379 | } | |
9380 | ||
420f9739 DH |
9381 | static struct ibm_struct mute_led_driver_data = { |
9382 | .name = "mute_led", | |
9383 | .exit = mute_led_exit, | |
119f4498 | 9384 | .resume = mute_led_resume, |
420f9739 DH |
9385 | }; |
9386 | ||
2801b968 OG |
9387 | /* |
9388 | * Battery Wear Control Driver | |
9389 | * Contact: Ognjen Galic <smclt30p@gmail.com> | |
9390 | */ | |
9391 | ||
9392 | /* Metadata */ | |
9393 | ||
9394 | #define GET_START "BCTG" | |
9395 | #define SET_START "BCCS" | |
9396 | #define GET_STOP "BCSG" | |
9397 | #define SET_STOP "BCSS" | |
9398 | ||
2801b968 OG |
9399 | enum { |
9400 | BAT_ANY = 0, | |
9401 | BAT_PRIMARY = 1, | |
9402 | BAT_SECONDARY = 2 | |
9403 | }; | |
9404 | ||
9405 | enum { | |
9406 | /* Error condition bit */ | |
9407 | METHOD_ERR = BIT(31), | |
9408 | }; | |
9409 | ||
9410 | enum { | |
9411 | /* This is used in the get/set helpers */ | |
9412 | THRESHOLD_START, | |
9413 | THRESHOLD_STOP, | |
9414 | }; | |
9415 | ||
9416 | struct tpacpi_battery_data { | |
9417 | int charge_start; | |
9418 | int start_support; | |
9419 | int charge_stop; | |
9420 | int stop_support; | |
9421 | }; | |
9422 | ||
9423 | struct tpacpi_battery_driver_data { | |
9424 | struct tpacpi_battery_data batteries[3]; | |
9425 | int individual_addressing; | |
9426 | }; | |
9427 | ||
9428 | static struct tpacpi_battery_driver_data battery_info; | |
9429 | ||
9430 | /* ACPI helpers/functions/probes */ | |
9431 | ||
9432 | /** | |
9433 | * This evaluates a ACPI method call specific to the battery | |
9434 | * ACPI extension. The specifics are that an error is marked | |
9435 | * in the 32rd bit of the response, so we just check that here. | |
9436 | */ | |
9437 | static acpi_status tpacpi_battery_acpi_eval(char *method, int *ret, int param) | |
9438 | { | |
9439 | int response; | |
9440 | ||
9441 | if (!acpi_evalf(hkey_handle, &response, method, "dd", param)) { | |
9442 | acpi_handle_err(hkey_handle, "%s: evaluate failed", method); | |
9443 | return AE_ERROR; | |
9444 | } | |
9445 | if (response & METHOD_ERR) { | |
9446 | acpi_handle_err(hkey_handle, | |
9447 | "%s evaluated but flagged as error", method); | |
9448 | return AE_ERROR; | |
9449 | } | |
9450 | *ret = response; | |
9451 | return AE_OK; | |
9452 | } | |
9453 | ||
9454 | static int tpacpi_battery_get(int what, int battery, int *ret) | |
9455 | { | |
9456 | switch (what) { | |
9457 | case THRESHOLD_START: | |
9458 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery)) | |
9459 | return -ENODEV; | |
9460 | ||
9461 | /* The value is in the low 8 bits of the response */ | |
9462 | *ret = *ret & 0xFF; | |
9463 | return 0; | |
9464 | case THRESHOLD_STOP: | |
9465 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery)) | |
9466 | return -ENODEV; | |
9467 | /* Value is in lower 8 bits */ | |
9468 | *ret = *ret & 0xFF; | |
9469 | /* | |
9470 | * On the stop value, if we return 0 that | |
9471 | * does not make any sense. 0 means Default, which | |
9472 | * means that charging stops at 100%, so we return | |
9473 | * that. | |
9474 | */ | |
9475 | if (*ret == 0) | |
9476 | *ret = 100; | |
9477 | return 0; | |
9478 | default: | |
9479 | pr_crit("wrong parameter: %d", what); | |
9480 | return -EINVAL; | |
9481 | } | |
9482 | } | |
9483 | ||
9484 | static int tpacpi_battery_set(int what, int battery, int value) | |
9485 | { | |
9486 | int param, ret; | |
9487 | /* The first 8 bits are the value of the threshold */ | |
9488 | param = value; | |
9489 | /* The battery ID is in bits 8-9, 2 bits */ | |
9490 | param |= battery << 8; | |
9491 | ||
9492 | switch (what) { | |
9493 | case THRESHOLD_START: | |
9494 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_START, &ret, param)) { | |
9495 | pr_err("failed to set charge threshold on battery %d", | |
9496 | battery); | |
9497 | return -ENODEV; | |
9498 | } | |
9499 | return 0; | |
9500 | case THRESHOLD_STOP: | |
9501 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_STOP, &ret, param)) { | |
9502 | pr_err("failed to set stop threshold: %d", battery); | |
9503 | return -ENODEV; | |
9504 | } | |
9505 | return 0; | |
9506 | default: | |
9507 | pr_crit("wrong parameter: %d", what); | |
9508 | return -EINVAL; | |
9509 | } | |
9510 | } | |
9511 | ||
9512 | static int tpacpi_battery_probe(int battery) | |
9513 | { | |
9514 | int ret = 0; | |
9515 | ||
d22296d9 TW |
9516 | memset(&battery_info.batteries[battery], 0, |
9517 | sizeof(battery_info.batteries[battery])); | |
9518 | ||
2801b968 OG |
9519 | /* |
9520 | * 1) Get the current start threshold | |
9521 | * 2) Check for support | |
9522 | * 3) Get the current stop threshold | |
9523 | * 4) Check for support | |
9524 | */ | |
9525 | if (acpi_has_method(hkey_handle, GET_START)) { | |
9526 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, &ret, battery)) { | |
9527 | pr_err("Error probing battery %d\n", battery); | |
9528 | return -ENODEV; | |
9529 | } | |
9530 | /* Individual addressing is in bit 9 */ | |
9531 | if (ret & BIT(9)) | |
9532 | battery_info.individual_addressing = true; | |
9533 | /* Support is marked in bit 8 */ | |
9534 | if (ret & BIT(8)) | |
9535 | battery_info.batteries[battery].start_support = 1; | |
9536 | else | |
9537 | return -ENODEV; | |
9538 | if (tpacpi_battery_get(THRESHOLD_START, battery, | |
9539 | &battery_info.batteries[battery].charge_start)) { | |
9540 | pr_err("Error probing battery %d\n", battery); | |
9541 | return -ENODEV; | |
9542 | } | |
9543 | } | |
9544 | if (acpi_has_method(hkey_handle, GET_STOP)) { | |
9545 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, &ret, battery)) { | |
9546 | pr_err("Error probing battery stop; %d\n", battery); | |
9547 | return -ENODEV; | |
9548 | } | |
9549 | /* Support is marked in bit 8 */ | |
9550 | if (ret & BIT(8)) | |
9551 | battery_info.batteries[battery].stop_support = 1; | |
9552 | else | |
9553 | return -ENODEV; | |
9554 | if (tpacpi_battery_get(THRESHOLD_STOP, battery, | |
9555 | &battery_info.batteries[battery].charge_stop)) { | |
9556 | pr_err("Error probing battery stop: %d\n", battery); | |
9557 | return -ENODEV; | |
9558 | } | |
9559 | } | |
9560 | pr_info("battery %d registered (start %d, stop %d)", | |
9561 | battery, | |
9562 | battery_info.batteries[battery].charge_start, | |
9563 | battery_info.batteries[battery].charge_stop); | |
9564 | ||
9565 | return 0; | |
9566 | } | |
9567 | ||
9568 | /* General helper functions */ | |
9569 | ||
9570 | static int tpacpi_battery_get_id(const char *battery_name) | |
9571 | { | |
9572 | ||
1a32ebb2 JW |
9573 | if (strcmp(battery_name, "BAT0") == 0 || |
9574 | tp_features.battery_force_primary) | |
2801b968 OG |
9575 | return BAT_PRIMARY; |
9576 | if (strcmp(battery_name, "BAT1") == 0) | |
9577 | return BAT_SECONDARY; | |
9578 | /* | |
9579 | * If for some reason the battery is not BAT0 nor is it | |
9580 | * BAT1, we will assume it's the default, first battery, | |
9581 | * AKA primary. | |
9582 | */ | |
9583 | pr_warn("unknown battery %s, assuming primary", battery_name); | |
9584 | return BAT_PRIMARY; | |
9585 | } | |
9586 | ||
9587 | /* sysfs interface */ | |
9588 | ||
9589 | static ssize_t tpacpi_battery_store(int what, | |
9590 | struct device *dev, | |
9591 | const char *buf, size_t count) | |
9592 | { | |
9593 | struct power_supply *supply = to_power_supply(dev); | |
9594 | unsigned long value; | |
9595 | int battery, rval; | |
9596 | /* | |
9597 | * Some systems have support for more than | |
9598 | * one battery. If that is the case, | |
9599 | * tpacpi_battery_probe marked that addressing | |
9600 | * them individually is supported, so we do that | |
9601 | * based on the device struct. | |
9602 | * | |
9603 | * On systems that are not supported, we assume | |
9604 | * the primary as most of the ACPI calls fail | |
9605 | * with "Any Battery" as the parameter. | |
9606 | */ | |
9607 | if (battery_info.individual_addressing) | |
9608 | /* BAT_PRIMARY or BAT_SECONDARY */ | |
9609 | battery = tpacpi_battery_get_id(supply->desc->name); | |
9610 | else | |
9611 | battery = BAT_PRIMARY; | |
9612 | ||
9613 | rval = kstrtoul(buf, 10, &value); | |
9614 | if (rval) | |
9615 | return rval; | |
9616 | ||
9617 | switch (what) { | |
9618 | case THRESHOLD_START: | |
9619 | if (!battery_info.batteries[battery].start_support) | |
9620 | return -ENODEV; | |
9621 | /* valid values are [0, 99] */ | |
b991178f | 9622 | if (value > 99) |
2801b968 OG |
9623 | return -EINVAL; |
9624 | if (value > battery_info.batteries[battery].charge_stop) | |
9625 | return -EINVAL; | |
9626 | if (tpacpi_battery_set(THRESHOLD_START, battery, value)) | |
9627 | return -ENODEV; | |
9628 | battery_info.batteries[battery].charge_start = value; | |
9629 | return count; | |
9630 | ||
9631 | case THRESHOLD_STOP: | |
9632 | if (!battery_info.batteries[battery].stop_support) | |
9633 | return -ENODEV; | |
9634 | /* valid values are [1, 100] */ | |
9635 | if (value < 1 || value > 100) | |
9636 | return -EINVAL; | |
9637 | if (value < battery_info.batteries[battery].charge_start) | |
9638 | return -EINVAL; | |
9639 | battery_info.batteries[battery].charge_stop = value; | |
9640 | /* | |
9641 | * When 100 is passed to stop, we need to flip | |
9642 | * it to 0 as that the EC understands that as | |
9643 | * "Default", which will charge to 100% | |
9644 | */ | |
9645 | if (value == 100) | |
9646 | value = 0; | |
9647 | if (tpacpi_battery_set(THRESHOLD_STOP, battery, value)) | |
9648 | return -EINVAL; | |
9649 | return count; | |
9650 | default: | |
9651 | pr_crit("Wrong parameter: %d", what); | |
9652 | return -EINVAL; | |
9653 | } | |
9654 | return count; | |
9655 | } | |
9656 | ||
9657 | static ssize_t tpacpi_battery_show(int what, | |
9658 | struct device *dev, | |
9659 | char *buf) | |
9660 | { | |
9661 | struct power_supply *supply = to_power_supply(dev); | |
9662 | int ret, battery; | |
9663 | /* | |
9664 | * Some systems have support for more than | |
9665 | * one battery. If that is the case, | |
9666 | * tpacpi_battery_probe marked that addressing | |
9667 | * them individually is supported, so we; | |
9668 | * based on the device struct. | |
9669 | * | |
9670 | * On systems that are not supported, we assume | |
9671 | * the primary as most of the ACPI calls fail | |
9672 | * with "Any Battery" as the parameter. | |
9673 | */ | |
9674 | if (battery_info.individual_addressing) | |
9675 | /* BAT_PRIMARY or BAT_SECONDARY */ | |
9676 | battery = tpacpi_battery_get_id(supply->desc->name); | |
9677 | else | |
9678 | battery = BAT_PRIMARY; | |
9679 | if (tpacpi_battery_get(what, battery, &ret)) | |
9680 | return -ENODEV; | |
9681 | return sprintf(buf, "%d\n", ret); | |
9682 | } | |
9683 | ||
e3392953 | 9684 | static ssize_t charge_control_start_threshold_show(struct device *device, |
2801b968 OG |
9685 | struct device_attribute *attr, |
9686 | char *buf) | |
9687 | { | |
9688 | return tpacpi_battery_show(THRESHOLD_START, device, buf); | |
9689 | } | |
9690 | ||
e3392953 | 9691 | static ssize_t charge_control_end_threshold_show(struct device *device, |
2801b968 OG |
9692 | struct device_attribute *attr, |
9693 | char *buf) | |
9694 | { | |
9695 | return tpacpi_battery_show(THRESHOLD_STOP, device, buf); | |
9696 | } | |
9697 | ||
e3392953 | 9698 | static ssize_t charge_control_start_threshold_store(struct device *dev, |
2801b968 OG |
9699 | struct device_attribute *attr, |
9700 | const char *buf, size_t count) | |
9701 | { | |
9702 | return tpacpi_battery_store(THRESHOLD_START, dev, buf, count); | |
9703 | } | |
9704 | ||
e3392953 | 9705 | static ssize_t charge_control_end_threshold_store(struct device *dev, |
2801b968 OG |
9706 | struct device_attribute *attr, |
9707 | const char *buf, size_t count) | |
9708 | { | |
9709 | return tpacpi_battery_store(THRESHOLD_STOP, dev, buf, count); | |
9710 | } | |
9711 | ||
e3392953 TW |
9712 | static DEVICE_ATTR_RW(charge_control_start_threshold); |
9713 | static DEVICE_ATTR_RW(charge_control_end_threshold); | |
066d7f32 | 9714 | static struct device_attribute dev_attr_charge_start_threshold = __ATTR( |
e3392953 TW |
9715 | charge_start_threshold, |
9716 | 0644, | |
9717 | charge_control_start_threshold_show, | |
9718 | charge_control_start_threshold_store | |
9719 | ); | |
066d7f32 | 9720 | static struct device_attribute dev_attr_charge_stop_threshold = __ATTR( |
e3392953 TW |
9721 | charge_stop_threshold, |
9722 | 0644, | |
9723 | charge_control_end_threshold_show, | |
9724 | charge_control_end_threshold_store | |
9725 | ); | |
2801b968 OG |
9726 | |
9727 | static struct attribute *tpacpi_battery_attrs[] = { | |
e3392953 TW |
9728 | &dev_attr_charge_control_start_threshold.attr, |
9729 | &dev_attr_charge_control_end_threshold.attr, | |
2801b968 OG |
9730 | &dev_attr_charge_start_threshold.attr, |
9731 | &dev_attr_charge_stop_threshold.attr, | |
9732 | NULL, | |
9733 | }; | |
9734 | ||
9735 | ATTRIBUTE_GROUPS(tpacpi_battery); | |
9736 | ||
9737 | /* ACPI battery hooking */ | |
9738 | ||
9739 | static int tpacpi_battery_add(struct power_supply *battery) | |
9740 | { | |
9741 | int batteryid = tpacpi_battery_get_id(battery->desc->name); | |
9742 | ||
9743 | if (tpacpi_battery_probe(batteryid)) | |
9744 | return -ENODEV; | |
9745 | if (device_add_groups(&battery->dev, tpacpi_battery_groups)) | |
9746 | return -ENODEV; | |
9747 | return 0; | |
9748 | } | |
9749 | ||
9750 | static int tpacpi_battery_remove(struct power_supply *battery) | |
9751 | { | |
9752 | device_remove_groups(&battery->dev, tpacpi_battery_groups); | |
9753 | return 0; | |
9754 | } | |
9755 | ||
9756 | static struct acpi_battery_hook battery_hook = { | |
9757 | .add_battery = tpacpi_battery_add, | |
9758 | .remove_battery = tpacpi_battery_remove, | |
9759 | .name = "ThinkPad Battery Extension", | |
9760 | }; | |
9761 | ||
9762 | /* Subdriver init/exit */ | |
9763 | ||
1a32ebb2 JW |
9764 | static const struct tpacpi_quirk battery_quirk_table[] __initconst = { |
9765 | /* | |
9766 | * Individual addressing is broken on models that expose the | |
9767 | * primary battery as BAT1. | |
9768 | */ | |
6640ee62 JW |
9769 | TPACPI_Q_LNV('J', '7', true), /* B5400 */ |
9770 | TPACPI_Q_LNV('J', 'I', true), /* Thinkpad 11e */ | |
9771 | TPACPI_Q_LNV3('R', '0', 'B', true), /* Thinkpad 11e gen 3 */ | |
1a32ebb2 | 9772 | TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */ |
6640ee62 | 9773 | TPACPI_Q_LNV3('R', '0', 'J', true), /* Thinkpad 13 gen 2 */ |
3cd420b2 | 9774 | TPACPI_Q_LNV3('R', '0', 'K', true), /* Thinkpad 11e gen 4 celeron BIOS */ |
1a32ebb2 JW |
9775 | }; |
9776 | ||
2801b968 OG |
9777 | static int __init tpacpi_battery_init(struct ibm_init_struct *ibm) |
9778 | { | |
d22296d9 TW |
9779 | memset(&battery_info, 0, sizeof(battery_info)); |
9780 | ||
1a32ebb2 JW |
9781 | tp_features.battery_force_primary = tpacpi_check_quirks( |
9782 | battery_quirk_table, | |
9783 | ARRAY_SIZE(battery_quirk_table)); | |
9784 | ||
2801b968 OG |
9785 | battery_hook_register(&battery_hook); |
9786 | return 0; | |
9787 | } | |
9788 | ||
9789 | static void tpacpi_battery_exit(void) | |
9790 | { | |
9791 | battery_hook_unregister(&battery_hook); | |
9792 | } | |
9793 | ||
9794 | static struct ibm_struct battery_driver_data = { | |
9795 | .name = "battery", | |
9796 | .exit = tpacpi_battery_exit, | |
9797 | }; | |
9798 | ||
110ea1d8 AS |
9799 | /************************************************************************* |
9800 | * LCD Shadow subdriver, for the Lenovo PrivacyGuard feature | |
9801 | */ | |
9802 | ||
9803 | static int lcdshadow_state; | |
9804 | ||
9805 | static int lcdshadow_on_off(bool state) | |
9806 | { | |
9807 | acpi_handle set_shadow_handle; | |
9808 | int output; | |
9809 | ||
9810 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "SSSS", &set_shadow_handle))) { | |
9811 | pr_warn("Thinkpad ACPI has no %s interface.\n", "SSSS"); | |
9812 | return -EIO; | |
9813 | } | |
9814 | ||
9815 | if (!acpi_evalf(set_shadow_handle, &output, NULL, "dd", (int)state)) | |
9816 | return -EIO; | |
9817 | ||
9818 | lcdshadow_state = state; | |
9819 | return 0; | |
9820 | } | |
9821 | ||
9822 | static int lcdshadow_set(bool on) | |
9823 | { | |
9824 | if (lcdshadow_state < 0) | |
9825 | return lcdshadow_state; | |
9826 | if (lcdshadow_state == on) | |
9827 | return 0; | |
9828 | return lcdshadow_on_off(on); | |
9829 | } | |
9830 | ||
9831 | static int tpacpi_lcdshadow_init(struct ibm_init_struct *iibm) | |
9832 | { | |
9833 | acpi_handle get_shadow_handle; | |
9834 | int output; | |
9835 | ||
9836 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GSSS", &get_shadow_handle))) { | |
9837 | lcdshadow_state = -ENODEV; | |
9838 | return 0; | |
9839 | } | |
9840 | ||
9841 | if (!acpi_evalf(get_shadow_handle, &output, NULL, "dd", 0)) { | |
9842 | lcdshadow_state = -EIO; | |
9843 | return -EIO; | |
9844 | } | |
9845 | if (!(output & 0x10000)) { | |
9846 | lcdshadow_state = -ENODEV; | |
9847 | return 0; | |
9848 | } | |
9849 | lcdshadow_state = output & 0x1; | |
9850 | ||
9851 | return 0; | |
9852 | } | |
9853 | ||
9854 | static void lcdshadow_resume(void) | |
9855 | { | |
9856 | if (lcdshadow_state >= 0) | |
9857 | lcdshadow_on_off(lcdshadow_state); | |
9858 | } | |
9859 | ||
9860 | static int lcdshadow_read(struct seq_file *m) | |
9861 | { | |
9862 | if (lcdshadow_state < 0) { | |
9863 | seq_puts(m, "status:\t\tnot supported\n"); | |
9864 | } else { | |
9865 | seq_printf(m, "status:\t\t%d\n", lcdshadow_state); | |
9866 | seq_puts(m, "commands:\t0, 1\n"); | |
9867 | } | |
9868 | ||
9869 | return 0; | |
9870 | } | |
9871 | ||
9872 | static int lcdshadow_write(char *buf) | |
9873 | { | |
9874 | char *cmd; | |
466f4697 | 9875 | int res, state = -EINVAL; |
110ea1d8 AS |
9876 | |
9877 | if (lcdshadow_state < 0) | |
9878 | return -ENODEV; | |
9879 | ||
be51bd45 | 9880 | while ((cmd = strsep(&buf, ","))) { |
466f4697 AS |
9881 | res = kstrtoint(cmd, 10, &state); |
9882 | if (res < 0) | |
9883 | return res; | |
110ea1d8 AS |
9884 | } |
9885 | ||
466f4697 | 9886 | if (state >= 2 || state < 0) |
110ea1d8 AS |
9887 | return -EINVAL; |
9888 | ||
9889 | return lcdshadow_set(state); | |
9890 | } | |
9891 | ||
9892 | static struct ibm_struct lcdshadow_driver_data = { | |
9893 | .name = "lcdshadow", | |
9894 | .resume = lcdshadow_resume, | |
9895 | .read = lcdshadow_read, | |
9896 | .write = lcdshadow_write, | |
9897 | }; | |
9898 | ||
acf7f4a5 | 9899 | /************************************************************************* |
1ac09656 | 9900 | * Thinkpad sensor interfaces |
acf7f4a5 MP |
9901 | */ |
9902 | ||
0b4f5c95 MP |
9903 | #define DYTC_CMD_QUERY 0 /* To get DYTC status - enable/revision */ |
9904 | #define DYTC_QUERY_ENABLE_BIT 8 /* Bit 8 - 0 = disabled, 1 = enabled */ | |
9905 | #define DYTC_QUERY_SUBREV_BIT 16 /* Bits 16 - 27 - sub revision */ | |
9906 | #define DYTC_QUERY_REV_BIT 28 /* Bits 28 - 31 - revision */ | |
9907 | ||
acf7f4a5 MP |
9908 | #define DYTC_CMD_GET 2 /* To get current IC function and mode */ |
9909 | #define DYTC_GET_LAPMODE_BIT 17 /* Set when in lapmode */ | |
9910 | ||
1ac09656 MP |
9911 | #define PALMSENSOR_PRESENT_BIT 0 /* Determine if psensor present */ |
9912 | #define PALMSENSOR_ON_BIT 1 /* psensor status */ | |
acf7f4a5 | 9913 | |
1ac09656 MP |
9914 | static bool has_palmsensor; |
9915 | static bool has_lapsensor; | |
9916 | static bool palm_state; | |
9917 | static bool lap_state; | |
0b4f5c95 | 9918 | static int dytc_version; |
acf7f4a5 | 9919 | |
c3bfcd4c | 9920 | static int dytc_command(int command, int *output) |
acf7f4a5 MP |
9921 | { |
9922 | acpi_handle dytc_handle; | |
9923 | ||
c3bfcd4c MP |
9924 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) { |
9925 | /* Platform doesn't support DYTC */ | |
acf7f4a5 | 9926 | return -ENODEV; |
c3bfcd4c MP |
9927 | } |
9928 | if (!acpi_evalf(dytc_handle, output, NULL, "dd", command)) | |
acf7f4a5 | 9929 | return -EIO; |
c3bfcd4c MP |
9930 | return 0; |
9931 | } | |
9932 | ||
0b4f5c95 MP |
9933 | static int dytc_get_version(void) |
9934 | { | |
9935 | int err, output; | |
9936 | ||
9937 | /* Check if we've been called before - and just return cached value */ | |
9938 | if (dytc_version) | |
9939 | return dytc_version; | |
9940 | ||
9941 | /* Otherwise query DYTC and extract version information */ | |
9942 | err = dytc_command(DYTC_CMD_QUERY, &output); | |
9943 | /* | |
9944 | * If support isn't available (ENODEV) then don't return an error | |
9945 | * and don't create the sysfs group | |
9946 | */ | |
9947 | if (err == -ENODEV) | |
9948 | return 0; | |
9949 | /* For all other errors we can flag the failure */ | |
9950 | if (err) | |
9951 | return err; | |
9952 | ||
9953 | /* Check DYTC is enabled and supports mode setting */ | |
9954 | if (output & BIT(DYTC_QUERY_ENABLE_BIT)) | |
9955 | dytc_version = (output >> DYTC_QUERY_REV_BIT) & 0xF; | |
9956 | ||
9957 | return 0; | |
9958 | } | |
9959 | ||
c3bfcd4c MP |
9960 | static int lapsensor_get(bool *present, bool *state) |
9961 | { | |
9962 | int output, err; | |
9963 | ||
9964 | *present = false; | |
9965 | err = dytc_command(DYTC_CMD_GET, &output); | |
9966 | if (err) | |
9967 | return err; | |
1ac09656 MP |
9968 | |
9969 | *present = true; /*If we get his far, we have lapmode support*/ | |
9970 | *state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false; | |
acf7f4a5 MP |
9971 | return 0; |
9972 | } | |
9973 | ||
1ac09656 | 9974 | static int palmsensor_get(bool *present, bool *state) |
acf7f4a5 | 9975 | { |
1ac09656 MP |
9976 | acpi_handle psensor_handle; |
9977 | int output; | |
acf7f4a5 | 9978 | |
1ac09656 MP |
9979 | *present = false; |
9980 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GPSS", &psensor_handle))) | |
9981 | return -ENODEV; | |
9982 | if (!acpi_evalf(psensor_handle, &output, NULL, "d")) | |
9983 | return -EIO; | |
9984 | ||
9985 | *present = output & BIT(PALMSENSOR_PRESENT_BIT) ? true : false; | |
9986 | *state = output & BIT(PALMSENSOR_ON_BIT) ? true : false; | |
acf7f4a5 MP |
9987 | return 0; |
9988 | } | |
9989 | ||
1ac09656 | 9990 | static void lapsensor_refresh(void) |
acf7f4a5 | 9991 | { |
1ac09656 | 9992 | bool state; |
acf7f4a5 MP |
9993 | int err; |
9994 | ||
1ac09656 MP |
9995 | if (has_lapsensor) { |
9996 | err = lapsensor_get(&has_lapsensor, &state); | |
9997 | if (err) | |
9998 | return; | |
9999 | if (lap_state != state) { | |
10000 | lap_state = state; | |
10001 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode"); | |
10002 | } | |
10003 | } | |
10004 | } | |
acf7f4a5 | 10005 | |
1ac09656 MP |
10006 | static void palmsensor_refresh(void) |
10007 | { | |
10008 | bool state; | |
10009 | int err; | |
10010 | ||
10011 | if (has_palmsensor) { | |
10012 | err = palmsensor_get(&has_palmsensor, &state); | |
10013 | if (err) | |
10014 | return; | |
10015 | if (palm_state != state) { | |
10016 | palm_state = state; | |
10017 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "palmsensor"); | |
10018 | } | |
10019 | } | |
acf7f4a5 MP |
10020 | } |
10021 | ||
acf7f4a5 MP |
10022 | static ssize_t dytc_lapmode_show(struct device *dev, |
10023 | struct device_attribute *attr, | |
10024 | char *buf) | |
10025 | { | |
1ac09656 MP |
10026 | if (has_lapsensor) |
10027 | return sysfs_emit(buf, "%d\n", lap_state); | |
10028 | return sysfs_emit(buf, "\n"); | |
acf7f4a5 | 10029 | } |
acf7f4a5 MP |
10030 | static DEVICE_ATTR_RO(dytc_lapmode); |
10031 | ||
1ac09656 MP |
10032 | static ssize_t palmsensor_show(struct device *dev, |
10033 | struct device_attribute *attr, | |
10034 | char *buf) | |
10035 | { | |
10036 | if (has_palmsensor) | |
10037 | return sysfs_emit(buf, "%d\n", palm_state); | |
10038 | return sysfs_emit(buf, "\n"); | |
10039 | } | |
10040 | static DEVICE_ATTR_RO(palmsensor); | |
acf7f4a5 | 10041 | |
1ac09656 | 10042 | static int tpacpi_proxsensor_init(struct ibm_init_struct *iibm) |
acf7f4a5 | 10043 | { |
1ac09656 | 10044 | int palm_err, lap_err, err; |
acf7f4a5 | 10045 | |
1ac09656 MP |
10046 | palm_err = palmsensor_get(&has_palmsensor, &palm_state); |
10047 | lap_err = lapsensor_get(&has_lapsensor, &lap_state); | |
10048 | /* | |
10049 | * If support isn't available (ENODEV) for both devices then quit, but | |
10050 | * don't return an error. | |
acf7f4a5 | 10051 | */ |
1ac09656 | 10052 | if ((palm_err == -ENODEV) && (lap_err == -ENODEV)) |
acf7f4a5 | 10053 | return 0; |
1ac09656 | 10054 | /* Otherwise, if there was an error return it */ |
aa44afab | 10055 | if (palm_err && (palm_err != -ENODEV)) |
1ac09656 | 10056 | return palm_err; |
aa44afab | 10057 | if (lap_err && (lap_err != -ENODEV)) |
1ac09656 MP |
10058 | return lap_err; |
10059 | ||
10060 | if (has_palmsensor) { | |
10061 | err = sysfs_create_file(&tpacpi_pdev->dev.kobj, &dev_attr_palmsensor.attr); | |
10062 | if (err) | |
10063 | return err; | |
10064 | } | |
0b4f5c95 MP |
10065 | |
10066 | /* Check if we know the DYTC version, if we don't then get it */ | |
10067 | if (!dytc_version) { | |
10068 | err = dytc_get_version(); | |
10069 | if (err) | |
10070 | return err; | |
10071 | } | |
10072 | /* | |
10073 | * Platforms before DYTC version 5 claim to have a lap sensor, but it doesn't work, so we | |
10074 | * ignore them | |
10075 | */ | |
10076 | if (has_lapsensor && (dytc_version >= 5)) { | |
1ac09656 MP |
10077 | err = sysfs_create_file(&tpacpi_pdev->dev.kobj, &dev_attr_dytc_lapmode.attr); |
10078 | if (err) | |
10079 | return err; | |
10080 | } | |
10081 | return 0; | |
acf7f4a5 MP |
10082 | } |
10083 | ||
1ac09656 | 10084 | static void proxsensor_exit(void) |
acf7f4a5 | 10085 | { |
1ac09656 MP |
10086 | if (has_lapsensor) |
10087 | sysfs_remove_file(&tpacpi_pdev->dev.kobj, &dev_attr_dytc_lapmode.attr); | |
10088 | if (has_palmsensor) | |
10089 | sysfs_remove_file(&tpacpi_pdev->dev.kobj, &dev_attr_palmsensor.attr); | |
acf7f4a5 MP |
10090 | } |
10091 | ||
1ac09656 MP |
10092 | static struct ibm_struct proxsensor_driver_data = { |
10093 | .name = "proximity-sensor", | |
10094 | .exit = proxsensor_exit, | |
acf7f4a5 MP |
10095 | }; |
10096 | ||
c3bfcd4c MP |
10097 | /************************************************************************* |
10098 | * DYTC Platform Profile interface | |
10099 | */ | |
10100 | ||
c3bfcd4c | 10101 | #define DYTC_CMD_SET 1 /* To enable/disable IC function mode */ |
7a47f86b | 10102 | #define DYTC_CMD_MMC_GET 8 /* To get current MMC function and mode */ |
c3bfcd4c MP |
10103 | #define DYTC_CMD_RESET 0x1ff /* To reset back to default */ |
10104 | ||
c3bfcd4c MP |
10105 | #define DYTC_GET_FUNCTION_BIT 8 /* Bits 8-11 - function setting */ |
10106 | #define DYTC_GET_MODE_BIT 12 /* Bits 12-15 - mode setting */ | |
10107 | ||
10108 | #define DYTC_SET_FUNCTION_BIT 12 /* Bits 12-15 - function setting */ | |
10109 | #define DYTC_SET_MODE_BIT 16 /* Bits 16-19 - mode setting */ | |
10110 | #define DYTC_SET_VALID_BIT 20 /* Bit 20 - 1 = on, 0 = off */ | |
10111 | ||
10112 | #define DYTC_FUNCTION_STD 0 /* Function = 0, standard mode */ | |
10113 | #define DYTC_FUNCTION_CQL 1 /* Function = 1, lap mode */ | |
10114 | #define DYTC_FUNCTION_MMC 11 /* Function = 11, desk mode */ | |
10115 | ||
10116 | #define DYTC_MODE_PERFORM 2 /* High power mode aka performance */ | |
10117 | #define DYTC_MODE_LOWPOWER 3 /* Low power mode */ | |
10118 | #define DYTC_MODE_BALANCE 0xF /* Default mode aka balanced */ | |
7a47f86b MP |
10119 | #define DYTC_MODE_MMC_BALANCE 0 /* Default mode from MMC_GET, aka balanced */ |
10120 | ||
10121 | #define DYTC_ERR_MASK 0xF /* Bits 0-3 in cmd result are the error result */ | |
10122 | #define DYTC_ERR_SUCCESS 1 /* CMD completed successful */ | |
c3bfcd4c MP |
10123 | |
10124 | #define DYTC_SET_COMMAND(function, mode, on) \ | |
10125 | (DYTC_CMD_SET | (function) << DYTC_SET_FUNCTION_BIT | \ | |
10126 | (mode) << DYTC_SET_MODE_BIT | \ | |
10127 | (on) << DYTC_SET_VALID_BIT) | |
10128 | ||
10129 | #define DYTC_DISABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_BALANCE, 0) | |
10130 | ||
10131 | #define DYTC_ENABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_BALANCE, 1) | |
10132 | ||
10133 | static bool dytc_profile_available; | |
10134 | static enum platform_profile_option dytc_current_profile; | |
10135 | static atomic_t dytc_ignore_event = ATOMIC_INIT(0); | |
10136 | static DEFINE_MUTEX(dytc_mutex); | |
7a47f86b | 10137 | static bool dytc_mmc_get_available; |
c3bfcd4c MP |
10138 | |
10139 | static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *profile) | |
10140 | { | |
10141 | switch (dytcmode) { | |
10142 | case DYTC_MODE_LOWPOWER: | |
10143 | *profile = PLATFORM_PROFILE_LOW_POWER; | |
10144 | break; | |
10145 | case DYTC_MODE_BALANCE: | |
7a47f86b | 10146 | case DYTC_MODE_MMC_BALANCE: |
c3bfcd4c MP |
10147 | *profile = PLATFORM_PROFILE_BALANCED; |
10148 | break; | |
10149 | case DYTC_MODE_PERFORM: | |
10150 | *profile = PLATFORM_PROFILE_PERFORMANCE; | |
10151 | break; | |
10152 | default: /* Unknown mode */ | |
10153 | return -EINVAL; | |
10154 | } | |
10155 | return 0; | |
10156 | } | |
10157 | ||
10158 | static int convert_profile_to_dytc(enum platform_profile_option profile, int *perfmode) | |
10159 | { | |
10160 | switch (profile) { | |
10161 | case PLATFORM_PROFILE_LOW_POWER: | |
10162 | *perfmode = DYTC_MODE_LOWPOWER; | |
10163 | break; | |
10164 | case PLATFORM_PROFILE_BALANCED: | |
10165 | *perfmode = DYTC_MODE_BALANCE; | |
10166 | break; | |
10167 | case PLATFORM_PROFILE_PERFORMANCE: | |
10168 | *perfmode = DYTC_MODE_PERFORM; | |
10169 | break; | |
10170 | default: /* Unknown profile */ | |
10171 | return -EOPNOTSUPP; | |
10172 | } | |
10173 | return 0; | |
10174 | } | |
10175 | ||
10176 | /* | |
10177 | * dytc_profile_get: Function to register with platform_profile | |
10178 | * handler. Returns current platform profile. | |
10179 | */ | |
d2386d79 HG |
10180 | static int dytc_profile_get(struct platform_profile_handler *pprof, |
10181 | enum platform_profile_option *profile) | |
c3bfcd4c MP |
10182 | { |
10183 | *profile = dytc_current_profile; | |
10184 | return 0; | |
10185 | } | |
10186 | ||
10187 | /* | |
10188 | * Helper function - check if we are in CQL mode and if we are | |
10189 | * - disable CQL, | |
10190 | * - run the command | |
10191 | * - enable CQL | |
10192 | * If not in CQL mode, just run the command | |
10193 | */ | |
d2386d79 | 10194 | static int dytc_cql_command(int command, int *output) |
c3bfcd4c MP |
10195 | { |
10196 | int err, cmd_err, dummy; | |
10197 | int cur_funcmode; | |
10198 | ||
10199 | /* Determine if we are in CQL mode. This alters the commands we do */ | |
10200 | err = dytc_command(DYTC_CMD_GET, output); | |
10201 | if (err) | |
10202 | return err; | |
10203 | ||
10204 | cur_funcmode = (*output >> DYTC_GET_FUNCTION_BIT) & 0xF; | |
10205 | /* Check if we're OK to return immediately */ | |
10206 | if ((command == DYTC_CMD_GET) && (cur_funcmode != DYTC_FUNCTION_CQL)) | |
10207 | return 0; | |
10208 | ||
10209 | if (cur_funcmode == DYTC_FUNCTION_CQL) { | |
10210 | atomic_inc(&dytc_ignore_event); | |
10211 | err = dytc_command(DYTC_DISABLE_CQL, &dummy); | |
10212 | if (err) | |
10213 | return err; | |
10214 | } | |
10215 | ||
10216 | cmd_err = dytc_command(command, output); | |
10217 | /* Check return condition after we've restored CQL state */ | |
10218 | ||
10219 | if (cur_funcmode == DYTC_FUNCTION_CQL) { | |
10220 | err = dytc_command(DYTC_ENABLE_CQL, &dummy); | |
10221 | if (err) | |
10222 | return err; | |
10223 | } | |
c3bfcd4c MP |
10224 | return cmd_err; |
10225 | } | |
10226 | ||
10227 | /* | |
10228 | * dytc_profile_set: Function to register with platform_profile | |
10229 | * handler. Sets current platform profile. | |
10230 | */ | |
d2386d79 HG |
10231 | static int dytc_profile_set(struct platform_profile_handler *pprof, |
10232 | enum platform_profile_option profile) | |
c3bfcd4c MP |
10233 | { |
10234 | int output; | |
10235 | int err; | |
10236 | ||
10237 | if (!dytc_profile_available) | |
10238 | return -ENODEV; | |
10239 | ||
10240 | err = mutex_lock_interruptible(&dytc_mutex); | |
10241 | if (err) | |
10242 | return err; | |
10243 | ||
10244 | if (profile == PLATFORM_PROFILE_BALANCED) { | |
e157c95f HG |
10245 | /* |
10246 | * To get back to balanced mode we need to issue a reset command. | |
10247 | * Note we still need to disable CQL mode before hand and re-enable | |
10248 | * it afterwards, otherwise dytc_lapmode gets reset to 0 and stays | |
10249 | * stuck at 0 for aprox. 30 minutes. | |
10250 | */ | |
10251 | err = dytc_cql_command(DYTC_CMD_RESET, &output); | |
c3bfcd4c MP |
10252 | if (err) |
10253 | goto unlock; | |
10254 | } else { | |
10255 | int perfmode; | |
10256 | ||
10257 | err = convert_profile_to_dytc(profile, &perfmode); | |
10258 | if (err) | |
10259 | goto unlock; | |
10260 | ||
10261 | /* Determine if we are in CQL mode. This alters the commands we do */ | |
10262 | err = dytc_cql_command(DYTC_SET_COMMAND(DYTC_FUNCTION_MMC, perfmode, 1), &output); | |
10263 | if (err) | |
10264 | goto unlock; | |
10265 | } | |
10266 | /* Success - update current profile */ | |
10267 | dytc_current_profile = profile; | |
10268 | unlock: | |
10269 | mutex_unlock(&dytc_mutex); | |
10270 | return err; | |
10271 | } | |
10272 | ||
10273 | static void dytc_profile_refresh(void) | |
10274 | { | |
10275 | enum platform_profile_option profile; | |
10276 | int output, err; | |
10277 | int perfmode; | |
10278 | ||
10279 | mutex_lock(&dytc_mutex); | |
7a47f86b MP |
10280 | if (dytc_mmc_get_available) |
10281 | err = dytc_command(DYTC_CMD_MMC_GET, &output); | |
10282 | else | |
10283 | err = dytc_cql_command(DYTC_CMD_GET, &output); | |
c3bfcd4c MP |
10284 | mutex_unlock(&dytc_mutex); |
10285 | if (err) | |
10286 | return; | |
10287 | ||
10288 | perfmode = (output >> DYTC_GET_MODE_BIT) & 0xF; | |
10289 | convert_dytc_to_profile(perfmode, &profile); | |
10290 | if (profile != dytc_current_profile) { | |
10291 | dytc_current_profile = profile; | |
10292 | platform_profile_notify(); | |
10293 | } | |
10294 | } | |
10295 | ||
10296 | static struct platform_profile_handler dytc_profile = { | |
10297 | .profile_get = dytc_profile_get, | |
10298 | .profile_set = dytc_profile_set, | |
10299 | }; | |
10300 | ||
10301 | static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) | |
10302 | { | |
10303 | int err, output; | |
10304 | ||
10305 | /* Setup supported modes */ | |
10306 | set_bit(PLATFORM_PROFILE_LOW_POWER, dytc_profile.choices); | |
10307 | set_bit(PLATFORM_PROFILE_BALANCED, dytc_profile.choices); | |
10308 | set_bit(PLATFORM_PROFILE_PERFORMANCE, dytc_profile.choices); | |
10309 | ||
10310 | dytc_profile_available = false; | |
10311 | err = dytc_command(DYTC_CMD_QUERY, &output); | |
10312 | /* | |
10313 | * If support isn't available (ENODEV) then don't return an error | |
10314 | * and don't create the sysfs group | |
10315 | */ | |
10316 | if (err == -ENODEV) | |
10317 | return 0; | |
10318 | /* For all other errors we can flag the failure */ | |
10319 | if (err) | |
10320 | return err; | |
10321 | ||
0b4f5c95 MP |
10322 | /* Check if we know the DYTC version, if we don't then get it */ |
10323 | if (!dytc_version) { | |
10324 | err = dytc_get_version(); | |
10325 | if (err) | |
10326 | return err; | |
10327 | } | |
c3bfcd4c | 10328 | /* Check DYTC is enabled and supports mode setting */ |
0b4f5c95 MP |
10329 | if (dytc_version >= 5) { |
10330 | dbg_printk(TPACPI_DBG_INIT, | |
10331 | "DYTC version %d: thermal mode available\n", dytc_version); | |
7a47f86b MP |
10332 | /* |
10333 | * Check if MMC_GET functionality available | |
10334 | * Version > 6 and return success from MMC_GET command | |
10335 | */ | |
10336 | dytc_mmc_get_available = false; | |
10337 | if (dytc_version >= 6) { | |
10338 | err = dytc_command(DYTC_CMD_MMC_GET, &output); | |
10339 | if (!err && ((output & DYTC_ERR_MASK) == DYTC_ERR_SUCCESS)) | |
10340 | dytc_mmc_get_available = true; | |
10341 | } | |
0b4f5c95 MP |
10342 | /* Create platform_profile structure and register */ |
10343 | err = platform_profile_register(&dytc_profile); | |
10344 | /* | |
10345 | * If for some reason platform_profiles aren't enabled | |
10346 | * don't quit terminally. | |
10347 | */ | |
10348 | if (err) | |
10349 | return 0; | |
c3bfcd4c | 10350 | |
0b4f5c95 MP |
10351 | dytc_profile_available = true; |
10352 | /* Ensure initial values are correct */ | |
10353 | dytc_profile_refresh(); | |
c3bfcd4c MP |
10354 | } |
10355 | return 0; | |
10356 | } | |
10357 | ||
10358 | static void dytc_profile_exit(void) | |
10359 | { | |
10360 | if (dytc_profile_available) { | |
10361 | dytc_profile_available = false; | |
10362 | platform_profile_remove(); | |
10363 | } | |
10364 | } | |
10365 | ||
10366 | static struct ibm_struct dytc_profile_driver_data = { | |
10367 | .name = "dytc-profile", | |
10368 | .exit = dytc_profile_exit, | |
10369 | }; | |
c3bfcd4c | 10370 | |
d7cbe277 NJ |
10371 | /************************************************************************* |
10372 | * Keyboard language interface | |
10373 | */ | |
10374 | ||
10375 | struct keyboard_lang_data { | |
10376 | const char *lang_str; | |
10377 | int lang_code; | |
10378 | }; | |
10379 | ||
cfa75cca | 10380 | static const struct keyboard_lang_data keyboard_lang_data[] = { |
d7cbe277 NJ |
10381 | {"be", 0x080c}, |
10382 | {"cz", 0x0405}, | |
10383 | {"da", 0x0406}, | |
10384 | {"de", 0x0c07}, | |
cfa75cca | 10385 | {"en", 0x0000}, |
d7cbe277 NJ |
10386 | {"es", 0x2c0a}, |
10387 | {"et", 0x0425}, | |
10388 | {"fr", 0x040c}, | |
10389 | {"fr-ch", 0x100c}, | |
10390 | {"hu", 0x040e}, | |
10391 | {"it", 0x0410}, | |
10392 | {"jp", 0x0411}, | |
10393 | {"nl", 0x0413}, | |
10394 | {"nn", 0x0414}, | |
10395 | {"pl", 0x0415}, | |
10396 | {"pt", 0x0816}, | |
10397 | {"sl", 0x041b}, | |
10398 | {"sv", 0x081d}, | |
10399 | {"tr", 0x041f}, | |
10400 | }; | |
10401 | ||
10402 | static int set_keyboard_lang_command(int command) | |
10403 | { | |
10404 | acpi_handle sskl_handle; | |
10405 | int output; | |
10406 | ||
10407 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "SSKL", &sskl_handle))) { | |
10408 | /* Platform doesn't support SSKL */ | |
10409 | return -ENODEV; | |
10410 | } | |
10411 | ||
10412 | if (!acpi_evalf(sskl_handle, &output, NULL, "dd", command)) | |
10413 | return -EIO; | |
10414 | ||
10415 | return 0; | |
10416 | } | |
10417 | ||
10418 | static int get_keyboard_lang(int *output) | |
10419 | { | |
10420 | acpi_handle gskl_handle; | |
10421 | int kbd_lang; | |
10422 | ||
10423 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GSKL", &gskl_handle))) { | |
10424 | /* Platform doesn't support GSKL */ | |
10425 | return -ENODEV; | |
10426 | } | |
10427 | ||
10428 | if (!acpi_evalf(gskl_handle, &kbd_lang, NULL, "dd", 0x02000000)) | |
10429 | return -EIO; | |
10430 | ||
9e9c6413 HG |
10431 | /* |
10432 | * METHOD_ERR gets returned on devices where there are no special (e.g. '=', | |
10433 | * '(' and ')') keys which use layout dependent key-press emulation. | |
10434 | */ | |
10435 | if (kbd_lang & METHOD_ERR) | |
10436 | return -ENODEV; | |
10437 | ||
d7cbe277 NJ |
10438 | *output = kbd_lang; |
10439 | ||
10440 | return 0; | |
10441 | } | |
10442 | ||
10443 | /* sysfs keyboard language entry */ | |
10444 | static ssize_t keyboard_lang_show(struct device *dev, | |
10445 | struct device_attribute *attr, | |
10446 | char *buf) | |
10447 | { | |
cfa75cca | 10448 | int output, err, i, len = 0; |
d7cbe277 NJ |
10449 | |
10450 | err = get_keyboard_lang(&output); | |
10451 | if (err) | |
10452 | return err; | |
10453 | ||
10454 | for (i = 0; i < ARRAY_SIZE(keyboard_lang_data); i++) { | |
10455 | if (i) | |
cfa75cca | 10456 | len += sysfs_emit_at(buf, len, "%s", " "); |
d7cbe277 NJ |
10457 | |
10458 | if (output == keyboard_lang_data[i].lang_code) { | |
cfa75cca | 10459 | len += sysfs_emit_at(buf, len, "[%s]", keyboard_lang_data[i].lang_str); |
d7cbe277 | 10460 | } else { |
cfa75cca | 10461 | len += sysfs_emit_at(buf, len, "%s", keyboard_lang_data[i].lang_str); |
d7cbe277 NJ |
10462 | } |
10463 | } | |
cfa75cca | 10464 | len += sysfs_emit_at(buf, len, "\n"); |
d7cbe277 | 10465 | |
cfa75cca | 10466 | return len; |
d7cbe277 NJ |
10467 | } |
10468 | ||
10469 | static ssize_t keyboard_lang_store(struct device *dev, | |
10470 | struct device_attribute *attr, | |
10471 | const char *buf, size_t count) | |
10472 | { | |
10473 | int err, i; | |
10474 | bool lang_found = false; | |
10475 | int lang_code = 0; | |
10476 | ||
10477 | for (i = 0; i < ARRAY_SIZE(keyboard_lang_data); i++) { | |
10478 | if (sysfs_streq(buf, keyboard_lang_data[i].lang_str)) { | |
10479 | lang_code = keyboard_lang_data[i].lang_code; | |
10480 | lang_found = true; | |
10481 | break; | |
10482 | } | |
10483 | } | |
10484 | ||
10485 | if (lang_found) { | |
10486 | lang_code = lang_code | 1 << 24; | |
10487 | ||
10488 | /* Set language code */ | |
10489 | err = set_keyboard_lang_command(lang_code); | |
10490 | if (err) | |
10491 | return err; | |
10492 | } else { | |
cfa75cca | 10493 | dev_err(&tpacpi_pdev->dev, "Unknown Keyboard language. Ignoring\n"); |
d7cbe277 NJ |
10494 | return -EINVAL; |
10495 | } | |
10496 | ||
10497 | tpacpi_disclose_usertask(attr->attr.name, | |
10498 | "keyboard language is set to %s\n", buf); | |
10499 | ||
10500 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "keyboard_lang"); | |
10501 | ||
10502 | return count; | |
10503 | } | |
d7cbe277 NJ |
10504 | static DEVICE_ATTR_RW(keyboard_lang); |
10505 | ||
10506 | static struct attribute *kbdlang_attributes[] = { | |
10507 | &dev_attr_keyboard_lang.attr, | |
10508 | NULL | |
10509 | }; | |
10510 | ||
10511 | static const struct attribute_group kbdlang_attr_group = { | |
10512 | .attrs = kbdlang_attributes, | |
10513 | }; | |
10514 | ||
10515 | static int tpacpi_kbdlang_init(struct ibm_init_struct *iibm) | |
10516 | { | |
10517 | int err, output; | |
10518 | ||
10519 | err = get_keyboard_lang(&output); | |
10520 | /* | |
10521 | * If support isn't available (ENODEV) then don't return an error | |
cfa75cca | 10522 | * just don't create the sysfs group. |
d7cbe277 NJ |
10523 | */ |
10524 | if (err == -ENODEV) | |
10525 | return 0; | |
10526 | ||
10527 | if (err) | |
10528 | return err; | |
10529 | ||
10530 | /* Platform supports this feature - create the sysfs file */ | |
cfa75cca | 10531 | return sysfs_create_group(&tpacpi_pdev->dev.kobj, &kbdlang_attr_group); |
d7cbe277 NJ |
10532 | } |
10533 | ||
10534 | static void kbdlang_exit(void) | |
10535 | { | |
10536 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &kbdlang_attr_group); | |
10537 | } | |
10538 | ||
10539 | static struct ibm_struct kbdlang_driver_data = { | |
10540 | .name = "kbdlang", | |
10541 | .exit = kbdlang_exit, | |
10542 | }; | |
10543 | ||
3feb52a2 NJ |
10544 | /************************************************************************* |
10545 | * DPRC(Dynamic Power Reduction Control) subdriver, for the Lenovo WWAN | |
10546 | * and WLAN feature. | |
10547 | */ | |
10548 | #define DPRC_GET_WWAN_ANTENNA_TYPE 0x40000 | |
10549 | #define DPRC_WWAN_ANTENNA_TYPE_A_BIT BIT(4) | |
10550 | #define DPRC_WWAN_ANTENNA_TYPE_B_BIT BIT(8) | |
10551 | static bool has_antennatype; | |
10552 | static int wwan_antennatype; | |
10553 | ||
10554 | static int dprc_command(int command, int *output) | |
10555 | { | |
10556 | acpi_handle dprc_handle; | |
10557 | ||
10558 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DPRC", &dprc_handle))) { | |
10559 | /* Platform doesn't support DPRC */ | |
10560 | return -ENODEV; | |
10561 | } | |
10562 | ||
10563 | if (!acpi_evalf(dprc_handle, output, NULL, "dd", command)) | |
10564 | return -EIO; | |
10565 | ||
10566 | /* | |
10567 | * METHOD_ERR gets returned on devices where few commands are not supported | |
10568 | * for example command to get WWAN Antenna type command is not supported on | |
10569 | * some devices. | |
10570 | */ | |
10571 | if (*output & METHOD_ERR) | |
10572 | return -ENODEV; | |
10573 | ||
10574 | return 0; | |
10575 | } | |
10576 | ||
10577 | static int get_wwan_antenna(int *wwan_antennatype) | |
10578 | { | |
10579 | int output, err; | |
10580 | ||
10581 | /* Get current Antenna type */ | |
10582 | err = dprc_command(DPRC_GET_WWAN_ANTENNA_TYPE, &output); | |
10583 | if (err) | |
10584 | return err; | |
10585 | ||
10586 | if (output & DPRC_WWAN_ANTENNA_TYPE_A_BIT) | |
10587 | *wwan_antennatype = 1; | |
10588 | else if (output & DPRC_WWAN_ANTENNA_TYPE_B_BIT) | |
10589 | *wwan_antennatype = 2; | |
10590 | else | |
10591 | return -ENODEV; | |
10592 | ||
10593 | return 0; | |
10594 | } | |
10595 | ||
10596 | /* sysfs wwan antenna type entry */ | |
10597 | static ssize_t wwan_antenna_type_show(struct device *dev, | |
10598 | struct device_attribute *attr, | |
10599 | char *buf) | |
10600 | { | |
10601 | switch (wwan_antennatype) { | |
10602 | case 1: | |
10603 | return sysfs_emit(buf, "type a\n"); | |
10604 | case 2: | |
10605 | return sysfs_emit(buf, "type b\n"); | |
10606 | default: | |
10607 | return -ENODATA; | |
10608 | } | |
10609 | } | |
10610 | static DEVICE_ATTR_RO(wwan_antenna_type); | |
10611 | ||
10612 | static int tpacpi_dprc_init(struct ibm_init_struct *iibm) | |
10613 | { | |
10614 | int wwanantenna_err, err; | |
10615 | ||
10616 | wwanantenna_err = get_wwan_antenna(&wwan_antennatype); | |
10617 | /* | |
10618 | * If support isn't available (ENODEV) then quit, but don't | |
10619 | * return an error. | |
10620 | */ | |
10621 | if (wwanantenna_err == -ENODEV) | |
10622 | return 0; | |
10623 | ||
10624 | /* if there was an error return it */ | |
10625 | if (wwanantenna_err && (wwanantenna_err != -ENODEV)) | |
10626 | return wwanantenna_err; | |
10627 | else if (!wwanantenna_err) | |
10628 | has_antennatype = true; | |
10629 | ||
10630 | if (has_antennatype) { | |
10631 | err = sysfs_create_file(&tpacpi_pdev->dev.kobj, &dev_attr_wwan_antenna_type.attr); | |
10632 | if (err) | |
10633 | return err; | |
10634 | } | |
10635 | return 0; | |
10636 | } | |
10637 | ||
10638 | static void dprc_exit(void) | |
10639 | { | |
10640 | if (has_antennatype) | |
10641 | sysfs_remove_file(&tpacpi_pdev->dev.kobj, &dev_attr_wwan_antenna_type.attr); | |
10642 | } | |
10643 | ||
10644 | static struct ibm_struct dprc_driver_data = { | |
10645 | .name = "dprc", | |
10646 | .exit = dprc_exit, | |
10647 | }; | |
10648 | ||
56b6aeb0 HMH |
10649 | /**************************************************************************** |
10650 | **************************************************************************** | |
10651 | * | |
10652 | * Infrastructure | |
10653 | * | |
10654 | **************************************************************************** | |
10655 | ****************************************************************************/ | |
10656 | ||
8b468c0c HMH |
10657 | /* |
10658 | * HKEY event callout for other subdrivers go here | |
10659 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
10660 | */ | |
10661 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
10662 | { | |
347a2686 HMH |
10663 | if (ibm_backlight_device) { |
10664 | switch (hkey_event) { | |
10665 | case TP_HKEY_EV_BRGHT_UP: | |
10666 | case TP_HKEY_EV_BRGHT_DOWN: | |
10667 | tpacpi_brightness_notify_change(); | |
10668 | } | |
10669 | } | |
0d204c34 HMH |
10670 | if (alsa_card) { |
10671 | switch (hkey_event) { | |
10672 | case TP_HKEY_EV_VOL_UP: | |
10673 | case TP_HKEY_EV_VOL_DOWN: | |
10674 | case TP_HKEY_EV_VOL_MUTE: | |
10675 | volume_alsa_notify_change(); | |
10676 | } | |
10677 | } | |
c685e20d HG |
10678 | if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) { |
10679 | enum led_brightness brightness; | |
10680 | ||
10681 | mutex_lock(&kbdlight_mutex); | |
10682 | ||
10683 | /* | |
10684 | * Check the brightness actually changed, setting the brightness | |
10685 | * through kbdlight_set_level() also triggers this event. | |
10686 | */ | |
10687 | brightness = kbdlight_sysfs_get(NULL); | |
10688 | if (kbdlight_brightness != brightness) { | |
10689 | kbdlight_brightness = brightness; | |
10690 | led_classdev_notify_brightness_hw_changed( | |
10691 | &tpacpi_led_kbdlight.led_classdev, brightness); | |
10692 | } | |
10693 | ||
10694 | mutex_unlock(&kbdlight_mutex); | |
10695 | } | |
acf7f4a5 | 10696 | |
c3bfcd4c | 10697 | if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED) { |
1ac09656 | 10698 | lapsensor_refresh(); |
c3bfcd4c MP |
10699 | /* If we are already accessing DYTC then skip dytc update */ |
10700 | if (!atomic_add_unless(&dytc_ignore_event, -1, 0)) | |
10701 | dytc_profile_refresh(); | |
c3bfcd4c | 10702 | } |
8b468c0c HMH |
10703 | } |
10704 | ||
8b468c0c HMH |
10705 | static void hotkey_driver_event(const unsigned int scancode) |
10706 | { | |
67bcae6e | 10707 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
10708 | } |
10709 | ||
7fd40029 HMH |
10710 | /* --------------------------------------------------------------------- */ |
10711 | ||
56b6aeb0 | 10712 | /* /proc support */ |
94954cc6 | 10713 | static struct proc_dir_entry *proc_dir; |
16663a87 | 10714 | |
56b6aeb0 HMH |
10715 | /* |
10716 | * Module and infrastructure proble, init and exit handling | |
10717 | */ | |
1da177e4 | 10718 | |
90ab5ee9 | 10719 | static bool force_load; |
b21a15f6 | 10720 | |
fe08bc4b | 10721 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 10722 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 10723 | { |
a5763f22 | 10724 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 10725 | |
72a979f0 | 10726 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
10727 | } |
10728 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
10729 | ||
b21a15f6 HMH |
10730 | static void ibm_exit(struct ibm_struct *ibm) |
10731 | { | |
10732 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
10733 | ||
10734 | list_del_init(&ibm->all_drivers); | |
10735 | ||
10736 | if (ibm->flags.acpi_notify_installed) { | |
10737 | dbg_printk(TPACPI_DBG_EXIT, | |
10738 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
10739 | BUG_ON(!ibm->acpi); | |
10740 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
10741 | ibm->acpi->type, | |
10742 | dispatch_acpi_notify); | |
10743 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
10744 | } |
10745 | ||
10746 | if (ibm->flags.proc_created) { | |
10747 | dbg_printk(TPACPI_DBG_EXIT, | |
10748 | "%s: remove_proc_entry\n", ibm->name); | |
10749 | remove_proc_entry(ibm->name, proc_dir); | |
10750 | ibm->flags.proc_created = 0; | |
10751 | } | |
10752 | ||
10753 | if (ibm->flags.acpi_driver_registered) { | |
10754 | dbg_printk(TPACPI_DBG_EXIT, | |
10755 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
10756 | BUG_ON(!ibm->acpi); | |
10757 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
10758 | kfree(ibm->acpi->driver); | |
10759 | ibm->acpi->driver = NULL; | |
10760 | ibm->flags.acpi_driver_registered = 0; | |
10761 | } | |
10762 | ||
10763 | if (ibm->flags.init_called && ibm->exit) { | |
10764 | ibm->exit(); | |
10765 | ibm->flags.init_called = 0; | |
10766 | } | |
10767 | ||
10768 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
10769 | } | |
f74a27d4 | 10770 | |
a5763f22 | 10771 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
10772 | { |
10773 | int ret; | |
a5763f22 | 10774 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
10775 | struct proc_dir_entry *entry; |
10776 | ||
a5763f22 HMH |
10777 | BUG_ON(ibm == NULL); |
10778 | ||
10779 | INIT_LIST_HEAD(&ibm->all_drivers); | |
10780 | ||
92641177 | 10781 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
10782 | return 0; |
10783 | ||
fe08bc4b HMH |
10784 | dbg_printk(TPACPI_DBG_INIT, |
10785 | "probing for %s\n", ibm->name); | |
10786 | ||
a5763f22 HMH |
10787 | if (iibm->init) { |
10788 | ret = iibm->init(iibm); | |
5fba344c HMH |
10789 | if (ret > 0) |
10790 | return 0; /* probe failed */ | |
10791 | if (ret) | |
1da177e4 | 10792 | return ret; |
a5763f22 | 10793 | |
92641177 | 10794 | ibm->flags.init_called = 1; |
1da177e4 LT |
10795 | } |
10796 | ||
8d376cd6 HMH |
10797 | if (ibm->acpi) { |
10798 | if (ibm->acpi->hid) { | |
10799 | ret = register_tpacpi_subdriver(ibm); | |
10800 | if (ret) | |
10801 | goto err_out; | |
10802 | } | |
5fba344c | 10803 | |
8d376cd6 HMH |
10804 | if (ibm->acpi->notify) { |
10805 | ret = setup_acpi_notify(ibm); | |
10806 | if (ret == -ENODEV) { | |
0978e012 JP |
10807 | pr_notice("disabling subdriver %s\n", |
10808 | ibm->name); | |
8d376cd6 HMH |
10809 | ret = 0; |
10810 | goto err_out; | |
10811 | } | |
10812 | if (ret < 0) | |
10813 | goto err_out; | |
5fba344c | 10814 | } |
5fba344c HMH |
10815 | } |
10816 | ||
fe08bc4b HMH |
10817 | dbg_printk(TPACPI_DBG_INIT, |
10818 | "%s installed\n", ibm->name); | |
10819 | ||
78f81cc4 | 10820 | if (ibm->read) { |
d161a13f | 10821 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 10822 | |
b525c06c HMH |
10823 | if (!mode) |
10824 | mode = S_IRUGO; | |
887965e6 AD |
10825 | if (ibm->write) |
10826 | mode |= S_IWUSR; | |
10827 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
97a32539 | 10828 | &dispatch_proc_ops, ibm); |
78f81cc4 | 10829 | if (!entry) { |
0978e012 | 10830 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
10831 | ret = -ENODEV; |
10832 | goto err_out; | |
78f81cc4 | 10833 | } |
92641177 | 10834 | ibm->flags.proc_created = 1; |
78f81cc4 | 10835 | } |
1da177e4 | 10836 | |
a5763f22 HMH |
10837 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
10838 | ||
1da177e4 | 10839 | return 0; |
5fba344c HMH |
10840 | |
10841 | err_out: | |
fe08bc4b HMH |
10842 | dbg_printk(TPACPI_DBG_INIT, |
10843 | "%s: at error exit path with result %d\n", | |
10844 | ibm->name, ret); | |
10845 | ||
5fba344c | 10846 | ibm_exit(ibm); |
72a979f0 | 10847 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
10848 | } |
10849 | ||
56b6aeb0 HMH |
10850 | /* Probing */ |
10851 | ||
846a416b JW |
10852 | static char __init tpacpi_parse_fw_id(const char * const s, |
10853 | u32 *model, u16 *release) | |
050df107 | 10854 | { |
846a416b JW |
10855 | int i; |
10856 | ||
10857 | if (!s || strlen(s) < 8) | |
10858 | goto invalid; | |
10859 | ||
10860 | for (i = 0; i < 8; i++) | |
10861 | if (!((s[i] >= '0' && s[i] <= '9') || | |
10862 | (s[i] >= 'A' && s[i] <= 'Z'))) | |
10863 | goto invalid; | |
050df107 | 10864 | |
1b0eb5bc AL |
10865 | /* |
10866 | * Most models: xxyTkkWW (#.##c) | |
10867 | * Ancient 570/600 and -SL lacks (#.##c) | |
10868 | */ | |
846a416b JW |
10869 | if (s[3] == 'T' || s[3] == 'N') { |
10870 | *model = TPID(s[0], s[1]); | |
10871 | *release = TPVER(s[4], s[5]); | |
10872 | return s[2]; | |
1b0eb5bc AL |
10873 | |
10874 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
846a416b JW |
10875 | } else if (s[4] == 'T' || s[4] == 'N') { |
10876 | *model = TPID3(s[0], s[1], s[2]); | |
10877 | *release = TPVER(s[5], s[6]); | |
10878 | return s[3]; | |
10879 | } | |
10880 | ||
10881 | invalid: | |
10882 | return '\0'; | |
050df107 HMH |
10883 | } |
10884 | ||
9a4b33d4 JY |
10885 | static void find_new_ec_fwstr(const struct dmi_header *dm, void *private) |
10886 | { | |
10887 | char *ec_fw_string = (char *) private; | |
10888 | const char *dmi_data = (const char *)dm; | |
10889 | /* | |
10890 | * ThinkPad Embedded Controller Program Table on newer models | |
10891 | * | |
10892 | * Offset | Name | Width | Description | |
10893 | * ---------------------------------------------------- | |
10894 | * 0x00 | Type | BYTE | 0x8C | |
10895 | * 0x01 | Length | BYTE | | |
10896 | * 0x02 | Handle | WORD | Varies | |
10897 | * 0x04 | Signature | BYTEx6 | ASCII for "LENOVO" | |
10898 | * 0x0A | OEM struct offset | BYTE | 0x0B | |
10899 | * 0x0B | OEM struct number | BYTE | 0x07, for this structure | |
10900 | * 0x0C | OEM struct revision | BYTE | 0x01, for this format | |
10901 | * 0x0D | ECP version ID | STR ID | | |
10902 | * 0x0E | ECP release date | STR ID | | |
10903 | */ | |
10904 | ||
10905 | /* Return if data structure not match */ | |
10906 | if (dm->type != 140 || dm->length < 0x0F || | |
10907 | memcmp(dmi_data + 4, "LENOVO", 6) != 0 || | |
10908 | dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 || | |
10909 | dmi_data[0x0C] != 0x01) | |
10910 | return; | |
10911 | ||
10912 | /* fwstr is the first 8byte string */ | |
10913 | strncpy(ec_fw_string, dmi_data + 0x0F, 8); | |
10914 | } | |
10915 | ||
bf20e740 HMH |
10916 | /* returns 0 - probe ok, or < 0 - probe error. |
10917 | * Probe ok doesn't mean thinkpad found. | |
10918 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
10919 | static int __must_check __init get_thinkpad_model_data( | |
10920 | struct thinkpad_id_data *tp) | |
1da177e4 | 10921 | { |
1855256c | 10922 | const struct dmi_device *dev = NULL; |
9a4b33d4 | 10923 | char ec_fw_string[18] = {0}; |
bf20e740 | 10924 | char const *s; |
846a416b | 10925 | char t; |
1da177e4 | 10926 | |
d5a2f2f1 | 10927 | if (!tp) |
bf20e740 | 10928 | return -EINVAL; |
d5a2f2f1 HMH |
10929 | |
10930 | memset(tp, 0, sizeof(*tp)); | |
10931 | ||
10932 | if (dmi_name_in_vendors("IBM")) | |
10933 | tp->vendor = PCI_VENDOR_ID_IBM; | |
10934 | else if (dmi_name_in_vendors("LENOVO")) | |
10935 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
10936 | else | |
bf20e740 | 10937 | return 0; |
d5a2f2f1 | 10938 | |
bf20e740 HMH |
10939 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
10940 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
10941 | if (s && !tp->bios_version_str) | |
10942 | return -ENOMEM; | |
050df107 HMH |
10943 | |
10944 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
846a416b JW |
10945 | t = tpacpi_parse_fw_id(tp->bios_version_str, |
10946 | &tp->bios_model, &tp->bios_release); | |
10947 | if (t != 'E' && t != 'C') | |
bf20e740 | 10948 | return 0; |
050df107 | 10949 | |
56b6aeb0 HMH |
10950 | /* |
10951 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
10952 | * X32 or newer, all Z series; Some models must have an | |
10953 | * up-to-date BIOS or they will not be detected. | |
10954 | * | |
19206a1e | 10955 | * See https://thinkwiki.org/wiki/List_of_DMI_IDs |
56b6aeb0 HMH |
10956 | */ |
10957 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
10958 | if (sscanf(dev->name, | |
10959 | "IBM ThinkPad Embedded Controller -[%17c", | |
10960 | ec_fw_string) == 1) { | |
10961 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
10962 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 | 10963 | break; |
78f81cc4 | 10964 | } |
1da177e4 | 10965 | } |
d5a2f2f1 | 10966 | |
9a4b33d4 JY |
10967 | /* Newer ThinkPads have different EC program info table */ |
10968 | if (!ec_fw_string[0]) | |
10969 | dmi_walk(find_new_ec_fwstr, &ec_fw_string); | |
10970 | ||
10971 | if (ec_fw_string[0]) { | |
10972 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
10973 | if (!tp->ec_version_str) | |
10974 | return -ENOMEM; | |
10975 | ||
10976 | t = tpacpi_parse_fw_id(ec_fw_string, | |
10977 | &tp->ec_model, &tp->ec_release); | |
10978 | if (t != 'H') { | |
10979 | pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", | |
10980 | ec_fw_string); | |
10981 | pr_notice("please report this to %s\n", TPACPI_MAIL); | |
10982 | } | |
10983 | } | |
10984 | ||
bf20e740 | 10985 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 10986 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
10987 | tp->model_str = kstrdup(s, GFP_KERNEL); |
10988 | if (!tp->model_str) | |
10989 | return -ENOMEM; | |
a4f46bb9 MI |
10990 | } else { |
10991 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 10992 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
10993 | tp->model_str = kstrdup(s, GFP_KERNEL); |
10994 | if (!tp->model_str) | |
10995 | return -ENOMEM; | |
10996 | } | |
d5a2f2f1 | 10997 | } |
8c74adbc | 10998 | |
bf20e740 HMH |
10999 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
11000 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
11001 | if (s && !tp->nummodel_str) | |
11002 | return -ENOMEM; | |
11003 | ||
11004 | return 0; | |
1da177e4 LT |
11005 | } |
11006 | ||
5fba344c HMH |
11007 | static int __init probe_for_thinkpad(void) |
11008 | { | |
11009 | int is_thinkpad; | |
11010 | ||
11011 | if (acpi_disabled) | |
11012 | return -ENODEV; | |
11013 | ||
e28393c0 HMH |
11014 | /* It would be dangerous to run the driver in this case */ |
11015 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
11016 | return -ENODEV; | |
11017 | ||
5fba344c HMH |
11018 | /* |
11019 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 11020 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 11021 | */ |
e675abaf HMH |
11022 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
11023 | (thinkpad_id.ec_model != 0) || | |
11024 | tpacpi_is_fw_known(); | |
5fba344c | 11025 | |
437e470c HMH |
11026 | /* The EC handler is required */ |
11027 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
11028 | if (!ec_handle) { |
11029 | if (is_thinkpad) | |
0978e012 | 11030 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
11031 | return -ENODEV; |
11032 | } | |
11033 | ||
0dcef77c HMH |
11034 | if (!is_thinkpad && !force_load) |
11035 | return -ENODEV; | |
11036 | ||
5fba344c HMH |
11037 | return 0; |
11038 | } | |
11039 | ||
7a43f788 HMH |
11040 | static void __init thinkpad_acpi_init_banner(void) |
11041 | { | |
0978e012 JP |
11042 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
11043 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 11044 | |
0978e012 | 11045 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
11046 | (thinkpad_id.bios_version_str) ? |
11047 | thinkpad_id.bios_version_str : "unknown", | |
11048 | (thinkpad_id.ec_version_str) ? | |
11049 | thinkpad_id.ec_version_str : "unknown"); | |
11050 | ||
11051 | BUG_ON(!thinkpad_id.vendor); | |
11052 | ||
11053 | if (thinkpad_id.model_str) | |
0978e012 | 11054 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
11055 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
11056 | "IBM" : ((thinkpad_id.vendor == | |
11057 | PCI_VENDOR_ID_LENOVO) ? | |
11058 | "Lenovo" : "Unknown vendor"), | |
11059 | thinkpad_id.model_str, | |
11060 | (thinkpad_id.nummodel_str) ? | |
11061 | thinkpad_id.nummodel_str : "unknown"); | |
11062 | } | |
5fba344c | 11063 | |
56b6aeb0 | 11064 | /* Module init, exit, parameters */ |
1da177e4 | 11065 | |
a5763f22 HMH |
11066 | static struct ibm_init_struct ibms_init[] __initdata = { |
11067 | { | |
a5763f22 HMH |
11068 | .data = &thinkpad_acpi_driver_data, |
11069 | }, | |
11070 | { | |
11071 | .init = hotkey_init, | |
11072 | .data = &hotkey_driver_data, | |
11073 | }, | |
11074 | { | |
11075 | .init = bluetooth_init, | |
11076 | .data = &bluetooth_driver_data, | |
11077 | }, | |
11078 | { | |
11079 | .init = wan_init, | |
11080 | .data = &wan_driver_data, | |
11081 | }, | |
0045c0aa HMH |
11082 | { |
11083 | .init = uwb_init, | |
11084 | .data = &uwb_driver_data, | |
11085 | }, | |
d7c1d17d | 11086 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
11087 | { |
11088 | .init = video_init, | |
b525c06c | 11089 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
11090 | .data = &video_driver_data, |
11091 | }, | |
d7c1d17d | 11092 | #endif |
bb28f3d5 PR |
11093 | { |
11094 | .init = kbdlight_init, | |
11095 | .data = &kbdlight_driver_data, | |
11096 | }, | |
a5763f22 HMH |
11097 | { |
11098 | .init = light_init, | |
11099 | .data = &light_driver_data, | |
11100 | }, | |
a5763f22 HMH |
11101 | { |
11102 | .init = cmos_init, | |
11103 | .data = &cmos_driver_data, | |
11104 | }, | |
11105 | { | |
11106 | .init = led_init, | |
11107 | .data = &led_driver_data, | |
11108 | }, | |
11109 | { | |
11110 | .init = beep_init, | |
11111 | .data = &beep_driver_data, | |
11112 | }, | |
11113 | { | |
11114 | .init = thermal_init, | |
11115 | .data = &thermal_driver_data, | |
11116 | }, | |
a5763f22 HMH |
11117 | { |
11118 | .init = brightness_init, | |
11119 | .data = &brightness_driver_data, | |
11120 | }, | |
11121 | { | |
329e4e18 | 11122 | .init = volume_init, |
a5763f22 HMH |
11123 | .data = &volume_driver_data, |
11124 | }, | |
11125 | { | |
11126 | .init = fan_init, | |
11127 | .data = &fan_driver_data, | |
11128 | }, | |
420f9739 DH |
11129 | { |
11130 | .init = mute_led_init, | |
11131 | .data = &mute_led_driver_data, | |
11132 | }, | |
2801b968 OG |
11133 | { |
11134 | .init = tpacpi_battery_init, | |
11135 | .data = &battery_driver_data, | |
11136 | }, | |
110ea1d8 AS |
11137 | { |
11138 | .init = tpacpi_lcdshadow_init, | |
11139 | .data = &lcdshadow_driver_data, | |
11140 | }, | |
acf7f4a5 | 11141 | { |
1ac09656 MP |
11142 | .init = tpacpi_proxsensor_init, |
11143 | .data = &proxsensor_driver_data, | |
acf7f4a5 | 11144 | }, |
c3bfcd4c MP |
11145 | { |
11146 | .init = tpacpi_dytc_profile_init, | |
11147 | .data = &dytc_profile_driver_data, | |
11148 | }, | |
d7cbe277 NJ |
11149 | { |
11150 | .init = tpacpi_kbdlang_init, | |
11151 | .data = &kbdlang_driver_data, | |
11152 | }, | |
3feb52a2 NJ |
11153 | { |
11154 | .init = tpacpi_dprc_init, | |
11155 | .data = &dprc_driver_data, | |
11156 | }, | |
a5763f22 HMH |
11157 | }; |
11158 | ||
e4dca7b7 | 11159 | static int __init set_ibm_param(const char *val, const struct kernel_param *kp) |
1da177e4 LT |
11160 | { |
11161 | unsigned int i; | |
a5763f22 | 11162 | struct ibm_struct *ibm; |
1da177e4 | 11163 | |
59f91ff1 HMH |
11164 | if (!kp || !kp->name || !val) |
11165 | return -EINVAL; | |
11166 | ||
a5763f22 HMH |
11167 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
11168 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
11169 | WARN_ON(ibm == NULL); |
11170 | ||
11171 | if (!ibm || !ibm->name) | |
11172 | continue; | |
a5763f22 HMH |
11173 | |
11174 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
be51bd45 | 11175 | if (strlen(val) > sizeof(ibms_init[i].param) - 1) |
78f81cc4 | 11176 | return -ENOSPC; |
a5763f22 | 11177 | strcpy(ibms_init[i].param, val); |
78f81cc4 BD |
11178 | return 0; |
11179 | } | |
a5763f22 | 11180 | } |
1da177e4 | 11181 | |
1da177e4 LT |
11182 | return -EINVAL; |
11183 | } | |
11184 | ||
b09c7225 | 11185 | module_param(experimental, int, 0444); |
f68080f8 | 11186 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 11187 | "Enables experimental features when non-zero"); |
56b6aeb0 | 11188 | |
132ce091 | 11189 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 11190 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 11191 | |
b09c7225 | 11192 | module_param(force_load, bool, 0444); |
f68080f8 | 11193 | MODULE_PARM_DESC(force_load, |
5cac62ac | 11194 | "Attempts to load the driver even on a mis-identified ThinkPad when true"); |
0dcef77c | 11195 | |
b09c7225 | 11196 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 11197 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 11198 | "Enables setting fan parameters features when true"); |
ecf2a80a | 11199 | |
b09c7225 | 11200 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 11201 | MODULE_PARM_DESC(brightness_mode, |
5cac62ac | 11202 | "Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 11203 | |
b09c7225 | 11204 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 11205 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 11206 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 11207 | |
ff850c33 | 11208 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
11209 | module_param_named(volume_mode, volume_mode, uint, 0444); |
11210 | MODULE_PARM_DESC(volume_mode, | |
5cac62ac | 11211 | "Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); |
329e4e18 | 11212 | |
a112ceee HMH |
11213 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
11214 | MODULE_PARM_DESC(volume_capabilities, | |
d33a7e57 | 11215 | "Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only"); |
a112ceee | 11216 | |
c7ac6291 HMH |
11217 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
11218 | MODULE_PARM_DESC(volume_control, | |
5cac62ac | 11219 | "Enables software override for the console audio control when true"); |
c7ac6291 | 11220 | |
9a417ec0 AL |
11221 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
11222 | MODULE_PARM_DESC(software_mute, | |
11223 | "Request full software mute control"); | |
11224 | ||
0d204c34 HMH |
11225 | /* ALSA module API parameters */ |
11226 | module_param_named(index, alsa_index, int, 0444); | |
11227 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
11228 | module_param_named(id, alsa_id, charp, 0444); | |
11229 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
11230 | module_param_named(enable, alsa_enable, bool, 0444); | |
11231 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 11232 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 11233 | |
9b4bbbd2 | 11234 | /* The module parameter can't be read back, that's why 0 is used here */ |
e0c7dfe7 | 11235 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 11236 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5cac62ac | 11237 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") |
1da177e4 | 11238 | |
e0c7dfe7 HMH |
11239 | TPACPI_PARAM(hotkey); |
11240 | TPACPI_PARAM(bluetooth); | |
11241 | TPACPI_PARAM(video); | |
11242 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
11243 | TPACPI_PARAM(cmos); |
11244 | TPACPI_PARAM(led); | |
11245 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
11246 | TPACPI_PARAM(brightness); |
11247 | TPACPI_PARAM(volume); | |
11248 | TPACPI_PARAM(fan); | |
78f81cc4 | 11249 | |
a73f3091 | 11250 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 11251 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
11252 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
11253 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
11254 | MODULE_PARM_DESC(wlsw_state, | |
11255 | "Initial state of the emulated WLSW switch"); | |
11256 | ||
b09c7225 | 11257 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
11258 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
11259 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
11260 | MODULE_PARM_DESC(bluetooth_state, | |
11261 | "Initial state of the emulated bluetooth switch"); | |
11262 | ||
b09c7225 | 11263 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
11264 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
11265 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
11266 | MODULE_PARM_DESC(wwan_state, | |
11267 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 11268 | |
b09c7225 | 11269 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
11270 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
11271 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
11272 | MODULE_PARM_DESC(uwb_state, | |
11273 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
11274 | #endif |
11275 | ||
b21a15f6 HMH |
11276 | static void thinkpad_acpi_module_exit(void) |
11277 | { | |
11278 | struct ibm_struct *ibm, *itmp; | |
11279 | ||
11280 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
11281 | ||
11282 | list_for_each_entry_safe_reverse(ibm, itmp, | |
11283 | &tpacpi_all_drivers, | |
11284 | all_drivers) { | |
11285 | ibm_exit(ibm); | |
11286 | } | |
11287 | ||
11288 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
11289 | ||
11290 | if (tpacpi_inputdev) { | |
11291 | if (tp_features.input_device_registered) | |
11292 | input_unregister_device(tpacpi_inputdev); | |
11293 | else | |
11294 | input_free_device(tpacpi_inputdev); | |
00d39597 | 11295 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
11296 | } |
11297 | ||
11298 | if (tpacpi_hwmon) | |
11299 | hwmon_device_unregister(tpacpi_hwmon); | |
11300 | ||
b21a15f6 HMH |
11301 | if (tpacpi_sensors_pdev) |
11302 | platform_device_unregister(tpacpi_sensors_pdev); | |
11303 | if (tpacpi_pdev) | |
11304 | platform_device_unregister(tpacpi_pdev); | |
11305 | ||
11306 | if (tp_features.sensors_pdrv_attrs_registered) | |
11307 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
11308 | if (tp_features.platform_drv_attrs_registered) | |
11309 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
11310 | ||
11311 | if (tp_features.sensors_pdrv_registered) | |
11312 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
11313 | ||
11314 | if (tp_features.platform_drv_registered) | |
11315 | platform_driver_unregister(&tpacpi_pdriver); | |
11316 | ||
11317 | if (proc_dir) | |
e0c7dfe7 | 11318 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 11319 | |
e0e3c061 HMH |
11320 | if (tpacpi_wq) |
11321 | destroy_workqueue(tpacpi_wq); | |
11322 | ||
b21a15f6 HMH |
11323 | kfree(thinkpad_id.bios_version_str); |
11324 | kfree(thinkpad_id.ec_version_str); | |
11325 | kfree(thinkpad_id.model_str); | |
d2be15bd | 11326 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
11327 | } |
11328 | ||
f74a27d4 | 11329 | |
1def7115 | 11330 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
11331 | { |
11332 | int ret, i; | |
11333 | ||
8fef502e HMH |
11334 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
11335 | ||
54ae1501 | 11336 | /* Driver-level probe */ |
d5a2f2f1 | 11337 | |
bf20e740 HMH |
11338 | ret = get_thinkpad_model_data(&thinkpad_id); |
11339 | if (ret) { | |
0978e012 | 11340 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
11341 | thinkpad_acpi_module_exit(); |
11342 | return ret; | |
11343 | } | |
5fba344c | 11344 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
11345 | if (ret) { |
11346 | thinkpad_acpi_module_exit(); | |
5fba344c | 11347 | return ret; |
d5a2f2f1 | 11348 | } |
1da177e4 | 11349 | |
54ae1501 | 11350 | /* Driver initialization */ |
d5a2f2f1 | 11351 | |
7a43f788 HMH |
11352 | thinkpad_acpi_init_banner(); |
11353 | tpacpi_check_outdated_fw(); | |
11354 | ||
e0c7dfe7 HMH |
11355 | TPACPI_ACPIHANDLE_INIT(ecrd); |
11356 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 11357 | |
e0e3c061 HMH |
11358 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
11359 | if (!tpacpi_wq) { | |
11360 | thinkpad_acpi_module_exit(); | |
11361 | return -ENOMEM; | |
11362 | } | |
11363 | ||
e0c7dfe7 | 11364 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 11365 | if (!proc_dir) { |
0978e012 | 11366 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 11367 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
11368 | return -ENODEV; |
11369 | } | |
78f81cc4 | 11370 | |
54ae1501 HMH |
11371 | ret = platform_driver_register(&tpacpi_pdriver); |
11372 | if (ret) { | |
0978e012 | 11373 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
11374 | thinkpad_acpi_module_exit(); |
11375 | return ret; | |
11376 | } | |
ac36393d HMH |
11377 | tp_features.platform_drv_registered = 1; |
11378 | ||
7fd40029 HMH |
11379 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
11380 | if (ret) { | |
0978e012 | 11381 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
11382 | thinkpad_acpi_module_exit(); |
11383 | return ret; | |
11384 | } | |
11385 | tp_features.sensors_pdrv_registered = 1; | |
11386 | ||
176750d6 | 11387 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
11388 | if (!ret) { |
11389 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
11390 | ret = tpacpi_create_driver_attributes( |
11391 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 11392 | } |
176750d6 | 11393 | if (ret) { |
0978e012 | 11394 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
11395 | thinkpad_acpi_module_exit(); |
11396 | return ret; | |
11397 | } | |
2369cc94 | 11398 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 11399 | |
54ae1501 HMH |
11400 | |
11401 | /* Device initialization */ | |
e0c7dfe7 | 11402 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
11403 | NULL, 0); |
11404 | if (IS_ERR(tpacpi_pdev)) { | |
11405 | ret = PTR_ERR(tpacpi_pdev); | |
11406 | tpacpi_pdev = NULL; | |
0978e012 | 11407 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
11408 | thinkpad_acpi_module_exit(); |
11409 | return ret; | |
11410 | } | |
7fd40029 | 11411 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
11412 | TPACPI_HWMON_DRVR_NAME, |
11413 | -1, NULL, 0); | |
7fd40029 HMH |
11414 | if (IS_ERR(tpacpi_sensors_pdev)) { |
11415 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
11416 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 11417 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
11418 | thinkpad_acpi_module_exit(); |
11419 | return ret; | |
11420 | } | |
7fd40029 | 11421 | tp_features.sensors_pdev_attrs_registered = 1; |
6b99e356 SF |
11422 | tpacpi_hwmon = hwmon_device_register_with_groups( |
11423 | &tpacpi_sensors_pdev->dev, TPACPI_NAME, NULL, NULL); | |
11424 | ||
54ae1501 HMH |
11425 | if (IS_ERR(tpacpi_hwmon)) { |
11426 | ret = PTR_ERR(tpacpi_hwmon); | |
11427 | tpacpi_hwmon = NULL; | |
0978e012 | 11428 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
11429 | thinkpad_acpi_module_exit(); |
11430 | return ret; | |
11431 | } | |
8523ed6f | 11432 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
11433 | tpacpi_inputdev = input_allocate_device(); |
11434 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
11435 | thinkpad_acpi_module_exit(); |
11436 | return -ENOMEM; | |
11437 | } else { | |
11438 | /* Prepare input device, but don't register */ | |
11439 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 11440 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 11441 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 11442 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
11443 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
11444 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 11445 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 11446 | } |
77775838 HMH |
11447 | |
11448 | /* Init subdriver dependencies */ | |
11449 | tpacpi_detect_brightness_capabilities(); | |
11450 | ||
11451 | /* Init subdrivers */ | |
a5763f22 HMH |
11452 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
11453 | ret = ibm_init(&ibms_init[i]); | |
11454 | if (ret >= 0 && *ibms_init[i].param) | |
11455 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 11456 | if (ret < 0) { |
1def7115 | 11457 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
11458 | return ret; |
11459 | } | |
11460 | } | |
b589ea4c HMH |
11461 | |
11462 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
11463 | ||
7f5d1cd6 HMH |
11464 | ret = input_register_device(tpacpi_inputdev); |
11465 | if (ret < 0) { | |
0978e012 | 11466 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
11467 | thinkpad_acpi_module_exit(); |
11468 | return ret; | |
11469 | } else { | |
11470 | tp_features.input_device_registered = 1; | |
11471 | } | |
1da177e4 LT |
11472 | |
11473 | return 0; | |
11474 | } | |
11475 | ||
95e57ab2 HMH |
11476 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
11477 | ||
922fe097 HMH |
11478 | /* |
11479 | * This will autoload the driver in almost every ThinkPad | |
11480 | * in widespread use. | |
11481 | * | |
11482 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
11483 | * the HKEY event interface. | |
11484 | */ | |
11485 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
11486 | ||
f68080f8 HMH |
11487 | /* |
11488 | * DMI matching for module autoloading | |
11489 | * | |
19206a1e AK |
11490 | * See https://thinkwiki.org/wiki/List_of_DMI_IDs |
11491 | * See https://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
f68080f8 HMH |
11492 | * |
11493 | * Only models listed in thinkwiki will be supported, so add yours | |
11494 | * if it is not there yet. | |
11495 | */ | |
11496 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 11497 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 11498 | |
f68080f8 HMH |
11499 | /* Ancient thinkpad BIOSes have to be identified by |
11500 | * BIOS type or model number, and there are far less | |
11501 | * BIOS types than model numbers... */ | |
922fe097 | 11502 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 11503 | |
f68f53a2 HMH |
11504 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
11505 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
11506 | MODULE_DESCRIPTION(TPACPI_DESC); |
11507 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
11508 | MODULE_LICENSE("GPL"); |
11509 | ||
1def7115 HMH |
11510 | module_init(thinkpad_acpi_module_init); |
11511 | module_exit(thinkpad_acpi_module_exit); |