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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
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> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
0978e012 JP |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
25 | ||
420f9739 | 26 | #define TPACPI_VERSION "0.25" |
6b99e356 | 27 | #define TPACPI_SYSFS_VERSION 0x030000 |
78f81cc4 BD |
28 | |
29 | /* | |
1da177e4 | 30 | * Changelog: |
4b45cc07 HMH |
31 | * 2007-10-20 changelog trimmed down |
32 | * | |
643f12db HMH |
33 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
34 | * drivers/misc. | |
f9ff43a6 HMH |
35 | * |
36 | * 2006-11-22 0.13 new maintainer | |
37 | * changelog now lives in git commit history, and will | |
38 | * not be updated further in-file. | |
837ca6dd | 39 | * |
78f81cc4 BD |
40 | * 2005-03-17 0.11 support for 600e, 770x |
41 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
42 | * |
43 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
44 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
45 | * fix parameter passing on module loading | |
46 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
47 | * thanks to Jim Radford <radford@blackbean.org> | |
48 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
49 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
50 | */ |
51 | ||
0c78039f HMH |
52 | #include <linux/kernel.h> |
53 | #include <linux/module.h> | |
54 | #include <linux/init.h> | |
55 | #include <linux/types.h> | |
56 | #include <linux/string.h> | |
57 | #include <linux/list.h> | |
58 | #include <linux/mutex.h> | |
73a94d86 | 59 | #include <linux/sched.h> |
0c78039f HMH |
60 | #include <linux/kthread.h> |
61 | #include <linux/freezer.h> | |
62 | #include <linux/delay.h> | |
5a0e3ad6 | 63 | #include <linux/slab.h> |
0c78039f HMH |
64 | #include <linux/nvram.h> |
65 | #include <linux/proc_fs.h> | |
887965e6 | 66 | #include <linux/seq_file.h> |
0c78039f HMH |
67 | #include <linux/sysfs.h> |
68 | #include <linux/backlight.h> | |
69 | #include <linux/fb.h> | |
70 | #include <linux/platform_device.h> | |
71 | #include <linux/hwmon.h> | |
72 | #include <linux/hwmon-sysfs.h> | |
73 | #include <linux/input.h> | |
4fa6811b | 74 | #include <linux/leds.h> |
0e74dc26 | 75 | #include <linux/rfkill.h> |
0c78039f HMH |
76 | #include <linux/dmi.h> |
77 | #include <linux/jiffies.h> | |
78 | #include <linux/workqueue.h> | |
8b48463f LZ |
79 | #include <linux/acpi.h> |
80 | #include <linux/pci_ids.h> | |
81 | #include <linux/thinkpad_acpi.h> | |
0d204c34 HMH |
82 | #include <sound/core.h> |
83 | #include <sound/control.h> | |
84 | #include <sound/initval.h> | |
7c0f6ba6 | 85 | #include <linux/uaccess.h> |
b33c6ce5 | 86 | #include <acpi/video.h> |
0c78039f HMH |
87 | |
88 | /* ThinkPad CMOS commands */ | |
89 | #define TP_CMOS_VOLUME_DOWN 0 | |
90 | #define TP_CMOS_VOLUME_UP 1 | |
91 | #define TP_CMOS_VOLUME_MUTE 2 | |
92 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
93 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
94 | #define TP_CMOS_THINKLIGHT_ON 12 |
95 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
96 | |
97 | /* NVRAM Addresses */ | |
98 | enum tp_nvram_addr { | |
99 | TP_NVRAM_ADDR_HK2 = 0x57, | |
100 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
101 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
102 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
103 | TP_NVRAM_ADDR_MIXER = 0x60, | |
104 | }; | |
105 | ||
106 | /* NVRAM bit masks */ | |
107 | enum { | |
108 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
109 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
110 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
111 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
112 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
113 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
114 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
115 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
116 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
117 | TP_NVRAM_MASK_MUTE = 0x40, | |
118 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
119 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
120 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
121 | }; | |
122 | ||
5d756db9 HMH |
123 | /* Misc NVRAM-related */ |
124 | enum { | |
125 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
126 | }; | |
127 | ||
b21a15f6 | 128 | /* ACPI HIDs */ |
9fbdaeb4 MI |
129 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
130 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
a3c42a46 | 131 | #define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268" |
437e470c | 132 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
133 | |
134 | /* Input IDs */ | |
135 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
136 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
137 | ||
153f8220 HMH |
138 | /* ACPI \WGSV commands */ |
139 | enum { | |
140 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
141 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
142 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
143 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
144 | }; | |
145 | ||
146 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
147 | enum { | |
148 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
149 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
150 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
151 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
152 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
153 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
154 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
155 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
156 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
157 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
158 | }; | |
b21a15f6 | 159 | |
67bcae6e HMH |
160 | /* HKEY events */ |
161 | enum tpacpi_hkey_event_t { | |
162 | /* Hotkey-related */ | |
163 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
164 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
165 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
c685e20d | 166 | TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */ |
67bcae6e HMH |
167 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ |
168 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
169 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
170 | ||
171 | /* Reasons for waking up from S3/S4 */ | |
172 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
173 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
174 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
175 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
176 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
177 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
178 | ||
179 | /* Auto-sleep after eject request */ | |
180 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
181 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
182 | ||
183 | /* Misc bay events */ | |
184 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
185 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
186 | or port replicator */ | |
187 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
188 | dock or port replicator */ | |
67bcae6e HMH |
189 | |
190 | /* User-interface events */ | |
191 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
192 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
193 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
194 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
b03f4d49 L |
195 | TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): |
196 | * enter/leave tablet mode | |
197 | */ | |
67bcae6e HMH |
198 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ |
199 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
200 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
201 | ||
2d43f671 HMH |
202 | /* Key-related user-interface events */ |
203 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
204 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 205 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 206 | |
67bcae6e HMH |
207 | /* Thermal events */ |
208 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
209 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
210 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
211 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
212 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
213 | ||
6f62bc3e RH |
214 | /* AC-related events */ |
215 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 216 | |
67bcae6e HMH |
217 | /* Misc */ |
218 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
219 | }; | |
220 | ||
b21a15f6 HMH |
221 | /**************************************************************************** |
222 | * Main driver | |
223 | */ | |
224 | ||
e0c7dfe7 HMH |
225 | #define TPACPI_NAME "thinkpad" |
226 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
227 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
228 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
229 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 230 | |
e0c7dfe7 HMH |
231 | #define TPACPI_PROC_DIR "ibm" |
232 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
233 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 234 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 235 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 236 | |
95e57ab2 | 237 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 238 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 239 | |
e0c7dfe7 | 240 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 241 | |
7ff8d62f | 242 | /* Debugging printk groups */ |
0c78039f | 243 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 244 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
245 | #define TPACPI_DBG_INIT 0x0001 |
246 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 247 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 248 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 249 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 250 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 251 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 252 | |
35ff8b9f HMH |
253 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
254 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
255 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 256 | |
0c78039f HMH |
257 | |
258 | /**************************************************************************** | |
b21a15f6 | 259 | * Driver-wide structs and misc. variables |
0c78039f HMH |
260 | */ |
261 | ||
262 | struct ibm_struct; | |
263 | ||
264 | struct tp_acpi_drv_struct { | |
265 | const struct acpi_device_id *hid; | |
266 | struct acpi_driver *driver; | |
267 | ||
268 | void (*notify) (struct ibm_struct *, u32); | |
269 | acpi_handle *handle; | |
270 | u32 type; | |
271 | struct acpi_device *device; | |
272 | }; | |
273 | ||
274 | struct ibm_struct { | |
275 | char *name; | |
276 | ||
887965e6 | 277 | int (*read) (struct seq_file *); |
0c78039f HMH |
278 | int (*write) (char *); |
279 | void (*exit) (void); | |
280 | void (*resume) (void); | |
fd3c3a42 | 281 | void (*suspend) (void); |
90d9d3c7 | 282 | void (*shutdown) (void); |
0c78039f HMH |
283 | |
284 | struct list_head all_drivers; | |
285 | ||
286 | struct tp_acpi_drv_struct *acpi; | |
287 | ||
288 | struct { | |
289 | u8 acpi_driver_registered:1; | |
290 | u8 acpi_notify_installed:1; | |
291 | u8 proc_created:1; | |
292 | u8 init_called:1; | |
293 | u8 experimental:1; | |
294 | } flags; | |
295 | }; | |
296 | ||
297 | struct ibm_init_struct { | |
298 | char param[32]; | |
299 | ||
300 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 301 | umode_t base_procfs_mode; |
0c78039f HMH |
302 | struct ibm_struct *data; |
303 | }; | |
304 | ||
305 | static struct { | |
0c78039f HMH |
306 | u32 bluetooth:1; |
307 | u32 hotkey:1; | |
308 | u32 hotkey_mask:1; | |
309 | u32 hotkey_wlsw:1; | |
b3180028 L |
310 | enum { |
311 | TP_HOTKEY_TABLET_NONE = 0, | |
312 | TP_HOTKEY_TABLET_USES_MHKG, | |
dda3ec0a | 313 | TP_HOTKEY_TABLET_USES_GMMS, |
b3180028 | 314 | } hotkey_tablet; |
bb28f3d5 | 315 | u32 kbdlight:1; |
0c78039f HMH |
316 | u32 light:1; |
317 | u32 light_status:1; | |
b5972796 | 318 | u32 bright_acpimode:1; |
77775838 | 319 | u32 bright_unkfw:1; |
0c78039f | 320 | u32 wan:1; |
0045c0aa | 321 | u32 uwb:1; |
0c78039f | 322 | u32 fan_ctrl_status_undef:1; |
d7377247 | 323 | u32 second_fan:1; |
60201732 | 324 | u32 beep_needs_two_args:1; |
a112ceee | 325 | u32 mixer_no_level_control:1; |
0c78039f HMH |
326 | u32 input_device_registered:1; |
327 | u32 platform_drv_registered:1; | |
328 | u32 platform_drv_attrs_registered:1; | |
329 | u32 sensors_pdrv_registered:1; | |
330 | u32 sensors_pdrv_attrs_registered:1; | |
331 | u32 sensors_pdev_attrs_registered:1; | |
332 | u32 hotkey_poll_active:1; | |
f23a5bcb | 333 | u32 has_adaptive_kbd:1; |
0c78039f HMH |
334 | } tp_features; |
335 | ||
92889022 HMH |
336 | static struct { |
337 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 338 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
339 | } tp_warned; |
340 | ||
0c78039f HMH |
341 | struct thinkpad_id_data { |
342 | unsigned int vendor; /* ThinkPad vendor: | |
343 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
344 | ||
345 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
346 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
347 | ||
050df107 | 348 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 349 | u16 ec_model; |
050df107 HMH |
350 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
351 | u16 ec_release; | |
0c78039f | 352 | |
8c74adbc HMH |
353 | char *model_str; /* ThinkPad T43 */ |
354 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 355 | }; |
0c78039f HMH |
356 | static struct thinkpad_id_data thinkpad_id; |
357 | ||
8fef502e HMH |
358 | static enum { |
359 | TPACPI_LIFE_INIT = 0, | |
360 | TPACPI_LIFE_RUNNING, | |
361 | TPACPI_LIFE_EXITING, | |
362 | } tpacpi_lifecycle; | |
363 | ||
b21a15f6 HMH |
364 | static int experimental; |
365 | static u32 dbg_level; | |
366 | ||
e0e3c061 HMH |
367 | static struct workqueue_struct *tpacpi_wq; |
368 | ||
75bd3bf2 HMH |
369 | enum led_status_t { |
370 | TPACPI_LED_OFF = 0, | |
371 | TPACPI_LED_ON, | |
372 | TPACPI_LED_BLINK, | |
373 | }; | |
374 | ||
86ec0c2c | 375 | /* tpacpi LED class */ |
4fa6811b HMH |
376 | struct tpacpi_led_classdev { |
377 | struct led_classdev led_classdev; | |
edf2d778 | 378 | int led; |
4fa6811b HMH |
379 | }; |
380 | ||
77775838 HMH |
381 | /* brightness level capabilities */ |
382 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
383 | ||
a73f3091 HMH |
384 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
385 | static int dbg_wlswemul; | |
90ab5ee9 | 386 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 387 | static int dbg_bluetoothemul; |
90ab5ee9 | 388 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 389 | static int dbg_wwanemul; |
90ab5ee9 | 390 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 391 | static int dbg_uwbemul; |
90ab5ee9 | 392 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
393 | #endif |
394 | ||
395 | ||
3dcc2c3b HMH |
396 | /************************************************************************* |
397 | * Debugging helpers | |
398 | */ | |
399 | ||
0978e012 JP |
400 | #define dbg_printk(a_dbg_level, format, arg...) \ |
401 | do { \ | |
402 | if (dbg_level & (a_dbg_level)) \ | |
403 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
404 | __func__, ##arg); \ | |
405 | } while (0) | |
3dcc2c3b HMH |
406 | |
407 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
408 | #define vdbg_printk dbg_printk | |
409 | static const char *str_supported(int is_supported); | |
410 | #else | |
0978e012 JP |
411 | static inline const char *str_supported(int is_supported) { return ""; } |
412 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 413 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
414 | #endif |
415 | ||
73a94d86 HMH |
416 | static void tpacpi_log_usertask(const char * const what) |
417 | { | |
0978e012 JP |
418 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
419 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
420 | } |
421 | ||
0978e012 JP |
422 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
423 | do { \ | |
424 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
425 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
426 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
427 | what, task_tgid_vnr(current), ## arg); \ | |
428 | } \ | |
429 | } while (0) | |
3dcc2c3b | 430 | |
7d95a3d5 HMH |
431 | /* |
432 | * Quirk handling helpers | |
433 | * | |
434 | * ThinkPad IDs and versions seen in the field so far | |
435 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
436 | * | |
437 | * We use values well outside that range as specials. | |
438 | */ | |
439 | ||
440 | #define TPACPI_MATCH_ANY 0xffffU | |
441 | #define TPACPI_MATCH_UNKNOWN 0U | |
442 | ||
443 | /* TPID('1', 'Y') == 0x5931 */ | |
444 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
445 | ||
446 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
447 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
448 | .bios = TPID(__id1, __id2), \ | |
449 | .ec = TPACPI_MATCH_ANY, \ | |
450 | .quirks = (__quirk) } | |
451 | ||
452 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
453 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
454 | .bios = TPID(__id1, __id2), \ | |
455 | .ec = TPACPI_MATCH_ANY, \ | |
456 | .quirks = (__quirk) } | |
457 | ||
a112ceee HMH |
458 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
459 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
460 | .bios = TPACPI_MATCH_ANY, \ | |
461 | .ec = TPID(__id1, __id2), \ | |
462 | .quirks = (__quirk) } | |
463 | ||
7d95a3d5 HMH |
464 | struct tpacpi_quirk { |
465 | unsigned int vendor; | |
466 | u16 bios; | |
467 | u16 ec; | |
468 | unsigned long quirks; | |
469 | }; | |
470 | ||
471 | /** | |
472 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
473 | * @qlist: array of &struct tpacpi_quirk | |
474 | * @qlist_size: number of elements in @qlist | |
475 | * | |
476 | * Iterates over a quirks list until one is found that matches the | |
477 | * ThinkPad's vendor, BIOS and EC model. | |
478 | * | |
479 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
480 | * the matching &struct tpacpi_quirk entry. | |
481 | * | |
482 | * The match criteria is: vendor, ec and bios much match. | |
483 | */ | |
484 | static unsigned long __init tpacpi_check_quirks( | |
485 | const struct tpacpi_quirk *qlist, | |
486 | unsigned int qlist_size) | |
487 | { | |
488 | while (qlist_size) { | |
489 | if ((qlist->vendor == thinkpad_id.vendor || | |
490 | qlist->vendor == TPACPI_MATCH_ANY) && | |
491 | (qlist->bios == thinkpad_id.bios_model || | |
492 | qlist->bios == TPACPI_MATCH_ANY) && | |
493 | (qlist->ec == thinkpad_id.ec_model || | |
494 | qlist->ec == TPACPI_MATCH_ANY)) | |
495 | return qlist->quirks; | |
496 | ||
497 | qlist_size--; | |
498 | qlist++; | |
499 | } | |
500 | return 0; | |
501 | } | |
502 | ||
e28393c0 HMH |
503 | static inline bool __pure __init tpacpi_is_lenovo(void) |
504 | { | |
505 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
506 | } | |
507 | ||
508 | static inline bool __pure __init tpacpi_is_ibm(void) | |
509 | { | |
510 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
511 | } | |
7d95a3d5 | 512 | |
56b6aeb0 HMH |
513 | /**************************************************************************** |
514 | **************************************************************************** | |
515 | * | |
516 | * ACPI Helpers and device model | |
517 | * | |
518 | **************************************************************************** | |
519 | ****************************************************************************/ | |
520 | ||
521 | /************************************************************************* | |
522 | * ACPI basic handles | |
523 | */ | |
1da177e4 | 524 | |
94954cc6 | 525 | static acpi_handle root_handle; |
437e470c | 526 | static acpi_handle ec_handle; |
1da177e4 | 527 | |
e0c7dfe7 | 528 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 529 | static acpi_handle object##_handle; \ |
3bd01896 | 530 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
531 | &parent##_handle; \ |
532 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 533 | |
e0c7dfe7 HMH |
534 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
535 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 536 | |
35ff8b9f HMH |
537 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
538 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
539 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
540 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 541 | ); /* all others */ |
78f81cc4 | 542 | |
e0c7dfe7 | 543 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
544 | "^HKEY", /* R30, R31 */ |
545 | "HKEY", /* all others */ | |
56b6aeb0 | 546 | ); /* 570 */ |
78f81cc4 | 547 | |
56b6aeb0 HMH |
548 | /************************************************************************* |
549 | * ACPI helpers | |
a8b7a662 HMH |
550 | */ |
551 | ||
1da177e4 | 552 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 553 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
554 | { |
555 | char *fmt0 = fmt; | |
78f81cc4 | 556 | struct acpi_object_list params; |
e0c7dfe7 | 557 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
558 | struct acpi_buffer result, *resultp; |
559 | union acpi_object out_obj; | |
560 | acpi_status status; | |
561 | va_list ap; | |
562 | char res_type; | |
563 | int success; | |
564 | int quiet; | |
1da177e4 LT |
565 | |
566 | if (!*fmt) { | |
0978e012 | 567 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
568 | return 0; |
569 | } | |
570 | ||
571 | if (*fmt == 'q') { | |
572 | quiet = 1; | |
573 | fmt++; | |
574 | } else | |
575 | quiet = 0; | |
576 | ||
577 | res_type = *(fmt++); | |
578 | ||
579 | params.count = 0; | |
580 | params.pointer = &in_objs[0]; | |
581 | ||
582 | va_start(ap, fmt); | |
583 | while (*fmt) { | |
584 | char c = *(fmt++); | |
585 | switch (c) { | |
586 | case 'd': /* int */ | |
587 | in_objs[params.count].integer.value = va_arg(ap, int); | |
588 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
589 | break; | |
78f81cc4 | 590 | /* add more types as needed */ |
1da177e4 | 591 | default: |
5cac62ac AS |
592 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
593 | c); | |
21365851 | 594 | va_end(ap); |
1da177e4 LT |
595 | return 0; |
596 | } | |
597 | } | |
598 | va_end(ap); | |
599 | ||
78f81cc4 BD |
600 | if (res_type != 'v') { |
601 | result.length = sizeof(out_obj); | |
602 | result.pointer = &out_obj; | |
603 | resultp = &result; | |
604 | } else | |
605 | resultp = NULL; | |
1da177e4 | 606 | |
78f81cc4 | 607 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
608 | |
609 | switch (res_type) { | |
78f81cc4 | 610 | case 'd': /* int */ |
263f4a30 HMH |
611 | success = (status == AE_OK && |
612 | out_obj.type == ACPI_TYPE_INTEGER); | |
613 | if (success && res) | |
eceeb437 | 614 | *res = out_obj.integer.value; |
1da177e4 | 615 | break; |
78f81cc4 | 616 | case 'v': /* void */ |
1da177e4 LT |
617 | success = status == AE_OK; |
618 | break; | |
78f81cc4 | 619 | /* add more types as needed */ |
1da177e4 | 620 | default: |
5cac62ac AS |
621 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
622 | res_type); | |
1da177e4 LT |
623 | return 0; |
624 | } | |
625 | ||
56b6aeb0 | 626 | if (!success && !quiet) |
0978e012 | 627 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 628 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
629 | |
630 | return success; | |
631 | } | |
632 | ||
35ff8b9f | 633 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
634 | { |
635 | int v; | |
636 | ||
637 | if (ecrd_handle) { | |
638 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
639 | return 0; | |
640 | *p = v; | |
641 | } else { | |
642 | if (ec_read(i, p) < 0) | |
643 | return 0; | |
644 | } | |
645 | ||
646 | return 1; | |
647 | } | |
648 | ||
649 | static int acpi_ec_write(int i, u8 v) | |
650 | { | |
651 | if (ecwr_handle) { | |
652 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
653 | return 0; | |
654 | } else { | |
655 | if (ec_write(i, v) < 0) | |
656 | return 0; | |
657 | } | |
658 | ||
659 | return 1; | |
660 | } | |
661 | ||
c9bea99c HMH |
662 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
663 | { | |
664 | if (!cmos_handle) | |
665 | return -ENXIO; | |
666 | ||
667 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
668 | return -EIO; | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
56b6aeb0 HMH |
673 | /************************************************************************* |
674 | * ACPI device model | |
675 | */ | |
676 | ||
35ff8b9f HMH |
677 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
678 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 679 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 680 | |
ef07a5ab HMH |
681 | static void __init drv_acpi_handle_init(const char *name, |
682 | acpi_handle *handle, const acpi_handle parent, | |
683 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
684 | { |
685 | int i; | |
686 | acpi_status status; | |
687 | ||
5ae930e6 HMH |
688 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
689 | name); | |
690 | ||
56b6aeb0 HMH |
691 | for (i = 0; i < num_paths; i++) { |
692 | status = acpi_get_handle(parent, paths[i], handle); | |
693 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
694 | dbg_printk(TPACPI_DBG_INIT, |
695 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 696 | paths[i], name); |
56b6aeb0 HMH |
697 | return; |
698 | } | |
699 | } | |
700 | ||
5ae930e6 HMH |
701 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
702 | name); | |
56b6aeb0 HMH |
703 | *handle = NULL; |
704 | } | |
705 | ||
437e470c HMH |
706 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
707 | u32 level, void *context, void **return_value) | |
708 | { | |
46445b6b AL |
709 | struct acpi_device *dev; |
710 | if (!strcmp(context, "video")) { | |
711 | if (acpi_bus_get_device(handle, &dev)) | |
712 | return AE_OK; | |
713 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
714 | return AE_OK; | |
715 | } | |
716 | ||
437e470c HMH |
717 | *(acpi_handle *)return_value = handle; |
718 | ||
719 | return AE_CTRL_TERMINATE; | |
720 | } | |
721 | ||
722 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
723 | const char *hid, | |
724 | acpi_handle *handle) | |
725 | { | |
726 | acpi_status status; | |
727 | acpi_handle device_found; | |
728 | ||
46445b6b | 729 | BUG_ON(!name || !handle); |
437e470c HMH |
730 | vdbg_printk(TPACPI_DBG_INIT, |
731 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 732 | name, hid ? hid : "NULL"); |
437e470c HMH |
733 | |
734 | memset(&device_found, 0, sizeof(device_found)); | |
735 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
736 | (void *)name, &device_found); | |
737 | ||
738 | *handle = NULL; | |
739 | ||
740 | if (ACPI_SUCCESS(status)) { | |
741 | *handle = device_found; | |
742 | dbg_printk(TPACPI_DBG_INIT, | |
743 | "Found ACPI handle for %s\n", name); | |
744 | } else { | |
745 | vdbg_printk(TPACPI_DBG_INIT, | |
746 | "Could not locate an ACPI handle for %s: %s\n", | |
747 | name, acpi_format_exception(status)); | |
748 | } | |
749 | } | |
750 | ||
8d376cd6 | 751 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
752 | { |
753 | struct ibm_struct *ibm = data; | |
754 | ||
8fef502e HMH |
755 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
756 | return; | |
757 | ||
8d376cd6 | 758 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
759 | return; |
760 | ||
8d376cd6 | 761 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
762 | } |
763 | ||
8d376cd6 | 764 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
765 | { |
766 | acpi_status status; | |
5ae930e6 | 767 | int rc; |
56b6aeb0 | 768 | |
8d376cd6 HMH |
769 | BUG_ON(!ibm->acpi); |
770 | ||
771 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
772 | return 0; |
773 | ||
5ae930e6 | 774 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
775 | "setting up ACPI notify for %s\n", ibm->name); |
776 | ||
5ae930e6 HMH |
777 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
778 | if (rc < 0) { | |
0978e012 | 779 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
780 | return -ENODEV; |
781 | } | |
782 | ||
db89b4f0 | 783 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 784 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 785 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 786 | ibm->name); |
56b6aeb0 | 787 | |
8d376cd6 HMH |
788 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
789 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
790 | if (ACPI_FAILURE(status)) { |
791 | if (status == AE_ALREADY_EXISTS) { | |
5cac62ac AS |
792 | pr_notice("another device driver is already handling %s events\n", |
793 | ibm->name); | |
56b6aeb0 | 794 | } else { |
0978e012 | 795 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 796 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
797 | } |
798 | return -ENODEV; | |
799 | } | |
8d376cd6 | 800 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
801 | return 0; |
802 | } | |
803 | ||
8d376cd6 | 804 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
805 | { |
806 | return 0; | |
807 | } | |
808 | ||
6700121b | 809 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 810 | { |
5ae930e6 | 811 | int rc; |
56b6aeb0 | 812 | |
fe08bc4b HMH |
813 | dbg_printk(TPACPI_DBG_INIT, |
814 | "registering %s as an ACPI driver\n", ibm->name); | |
815 | ||
8d376cd6 HMH |
816 | BUG_ON(!ibm->acpi); |
817 | ||
818 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
819 | if (!ibm->acpi->driver) { | |
0978e012 | 820 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 821 | return -ENOMEM; |
56b6aeb0 HMH |
822 | } |
823 | ||
e0c7dfe7 | 824 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 825 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 826 | |
8d376cd6 | 827 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 828 | |
5ae930e6 HMH |
829 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
830 | if (rc < 0) { | |
0978e012 | 831 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 832 | ibm->name, rc); |
8d376cd6 HMH |
833 | kfree(ibm->acpi->driver); |
834 | ibm->acpi->driver = NULL; | |
5ae930e6 | 835 | } else if (!rc) |
8d376cd6 | 836 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 837 | |
5ae930e6 | 838 | return rc; |
56b6aeb0 HMH |
839 | } |
840 | ||
841 | ||
842 | /**************************************************************************** | |
843 | **************************************************************************** | |
844 | * | |
845 | * Procfs Helpers | |
846 | * | |
847 | **************************************************************************** | |
848 | ****************************************************************************/ | |
849 | ||
887965e6 | 850 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 851 | { |
887965e6 | 852 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
853 | |
854 | if (!ibm || !ibm->read) | |
855 | return -EINVAL; | |
887965e6 AD |
856 | return ibm->read(m); |
857 | } | |
56b6aeb0 | 858 | |
887965e6 AD |
859 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
860 | { | |
d9dda78b | 861 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
862 | } |
863 | ||
887965e6 | 864 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 865 | const char __user *userbuf, |
887965e6 | 866 | size_t count, loff_t *pos) |
56b6aeb0 | 867 | { |
d9dda78b | 868 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
869 | char *kernbuf; |
870 | int ret; | |
871 | ||
872 | if (!ibm || !ibm->write) | |
873 | return -EINVAL; | |
5b05d469 MB |
874 | if (count > PAGE_SIZE - 2) |
875 | return -EINVAL; | |
56b6aeb0 HMH |
876 | |
877 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
878 | if (!kernbuf) | |
879 | return -ENOMEM; | |
1da177e4 | 880 | |
56b6aeb0 HMH |
881 | if (copy_from_user(kernbuf, userbuf, count)) { |
882 | kfree(kernbuf); | |
883 | return -EFAULT; | |
884 | } | |
1da177e4 | 885 | |
56b6aeb0 HMH |
886 | kernbuf[count] = 0; |
887 | strcat(kernbuf, ","); | |
888 | ret = ibm->write(kernbuf); | |
889 | if (ret == 0) | |
890 | ret = count; | |
1da177e4 | 891 | |
56b6aeb0 HMH |
892 | kfree(kernbuf); |
893 | ||
894 | return ret; | |
1da177e4 LT |
895 | } |
896 | ||
887965e6 AD |
897 | static const struct file_operations dispatch_proc_fops = { |
898 | .owner = THIS_MODULE, | |
899 | .open = dispatch_proc_open, | |
900 | .read = seq_read, | |
901 | .llseek = seq_lseek, | |
902 | .release = single_release, | |
903 | .write = dispatch_proc_write, | |
904 | }; | |
905 | ||
1da177e4 LT |
906 | static char *next_cmd(char **cmds) |
907 | { | |
908 | char *start = *cmds; | |
909 | char *end; | |
910 | ||
911 | while ((end = strchr(start, ',')) && end == start) | |
912 | start = end + 1; | |
913 | ||
914 | if (!end) | |
915 | return NULL; | |
916 | ||
917 | *end = 0; | |
918 | *cmds = end + 1; | |
919 | return start; | |
920 | } | |
921 | ||
56b6aeb0 | 922 | |
54ae1501 HMH |
923 | /**************************************************************************** |
924 | **************************************************************************** | |
925 | * | |
7f5d1cd6 | 926 | * Device model: input, hwmon and platform |
54ae1501 HMH |
927 | * |
928 | **************************************************************************** | |
929 | ****************************************************************************/ | |
930 | ||
94954cc6 | 931 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 932 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 933 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 934 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 935 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 936 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 937 | |
3567a4e2 | 938 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 939 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
940 | { |
941 | struct ibm_struct *ibm, *itmp; | |
942 | ||
943 | list_for_each_entry_safe(ibm, itmp, | |
944 | &tpacpi_all_drivers, | |
945 | all_drivers) { | |
946 | if (ibm->suspend) | |
fd3c3a42 | 947 | (ibm->suspend)(); |
083f1760 HMH |
948 | } |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
4959a781 | 953 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
954 | { |
955 | struct ibm_struct *ibm, *itmp; | |
956 | ||
957 | list_for_each_entry_safe(ibm, itmp, | |
958 | &tpacpi_all_drivers, | |
959 | all_drivers) { | |
960 | if (ibm->resume) | |
961 | (ibm->resume)(); | |
962 | } | |
963 | ||
964 | return 0; | |
965 | } | |
3567a4e2 | 966 | #endif |
e295e850 | 967 | |
4959a781 RW |
968 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
969 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
970 | ||
90d9d3c7 HMH |
971 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
972 | { | |
973 | struct ibm_struct *ibm, *itmp; | |
974 | ||
975 | list_for_each_entry_safe(ibm, itmp, | |
976 | &tpacpi_all_drivers, | |
977 | all_drivers) { | |
978 | if (ibm->shutdown) | |
979 | (ibm->shutdown)(); | |
980 | } | |
981 | } | |
982 | ||
54ae1501 HMH |
983 | static struct platform_driver tpacpi_pdriver = { |
984 | .driver = { | |
e0c7dfe7 | 985 | .name = TPACPI_DRVR_NAME, |
4959a781 | 986 | .pm = &tpacpi_pm, |
54ae1501 | 987 | }, |
90d9d3c7 | 988 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
989 | }; |
990 | ||
7fd40029 HMH |
991 | static struct platform_driver tpacpi_hwmon_pdriver = { |
992 | .driver = { | |
e0c7dfe7 | 993 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
994 | }, |
995 | }; | |
54ae1501 | 996 | |
176750d6 | 997 | /************************************************************************* |
b21a15f6 | 998 | * sysfs support helpers |
176750d6 HMH |
999 | */ |
1000 | ||
b21a15f6 HMH |
1001 | struct attribute_set { |
1002 | unsigned int members, max_members; | |
1003 | struct attribute_group group; | |
176750d6 HMH |
1004 | }; |
1005 | ||
7252374a HMH |
1006 | struct attribute_set_obj { |
1007 | struct attribute_set s; | |
1008 | struct attribute *a; | |
1009 | } __attribute__((packed)); | |
1010 | ||
1011 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1012 | const char *name) |
7252374a HMH |
1013 | { |
1014 | struct attribute_set_obj *sobj; | |
1015 | ||
1016 | if (max_members == 0) | |
1017 | return NULL; | |
1018 | ||
1019 | /* Allocates space for implicit NULL at the end too */ | |
1020 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1021 | max_members * sizeof(struct attribute *), | |
1022 | GFP_KERNEL); | |
1023 | if (!sobj) | |
1024 | return NULL; | |
1025 | sobj->s.max_members = max_members; | |
1026 | sobj->s.group.attrs = &sobj->a; | |
1027 | sobj->s.group.name = name; | |
1028 | ||
1029 | return &sobj->s; | |
1030 | } | |
1031 | ||
f74a27d4 HMH |
1032 | #define destroy_attr_set(_set) \ |
1033 | kfree(_set); | |
1034 | ||
7252374a | 1035 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1036 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1037 | { |
1038 | if (!s || !attr) | |
1039 | return -EINVAL; | |
1040 | ||
1041 | if (s->members >= s->max_members) | |
1042 | return -ENOMEM; | |
1043 | ||
1044 | s->group.attrs[s->members] = attr; | |
1045 | s->members++; | |
1046 | ||
1047 | return 0; | |
1048 | } | |
1049 | ||
35ff8b9f | 1050 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1051 | struct attribute **attr, |
1052 | unsigned int count) | |
1053 | { | |
1054 | int i, res; | |
1055 | ||
1056 | for (i = 0; i < count; i++) { | |
1057 | res = add_to_attr_set(s, attr[i]); | |
1058 | if (res) | |
1059 | return res; | |
1060 | } | |
1061 | ||
1062 | return 0; | |
1063 | } | |
1064 | ||
35ff8b9f | 1065 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1066 | { |
1067 | sysfs_remove_group(kobj, &s->group); | |
1068 | destroy_attr_set(s); | |
1069 | } | |
1070 | ||
f74a27d4 HMH |
1071 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1072 | sysfs_create_group(_kobj, &_attr_set->group) | |
1073 | ||
7252374a HMH |
1074 | static int parse_strtoul(const char *buf, |
1075 | unsigned long max, unsigned long *value) | |
1076 | { | |
1077 | char *endp; | |
1078 | ||
e7d2860b AGR |
1079 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1080 | endp = skip_spaces(endp); | |
7252374a HMH |
1081 | if (*endp || *value > max) |
1082 | return -EINVAL; | |
1083 | ||
1084 | return 0; | |
1085 | } | |
1086 | ||
d64c81c4 HMH |
1087 | static void tpacpi_disable_brightness_delay(void) |
1088 | { | |
1089 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1090 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1091 | } |
1092 | ||
19d337df JB |
1093 | static void printk_deprecated_attribute(const char * const what, |
1094 | const char * const details) | |
1095 | { | |
1096 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
5cac62ac | 1097 | pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n", |
19d337df JB |
1098 | what, details); |
1099 | } | |
1100 | ||
1101 | /************************************************************************* | |
1102 | * rfkill and radio control support helpers | |
1103 | */ | |
1104 | ||
1105 | /* | |
1106 | * ThinkPad-ACPI firmware handling model: | |
1107 | * | |
1108 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1109 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1110 | * as expected. It overrides all radio state in firmware | |
1111 | * | |
1112 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1113 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1114 | * | |
1115 | * The only time there are shadow radio state changes, is when | |
1116 | * masked-off hotkeys are used. | |
1117 | */ | |
1118 | ||
1119 | /* | |
1120 | * Internal driver API for radio state: | |
1121 | * | |
1122 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1123 | * bool: true means radio blocked (off) | |
1124 | */ | |
1125 | enum tpacpi_rfkill_state { | |
1126 | TPACPI_RFK_RADIO_OFF = 0, | |
1127 | TPACPI_RFK_RADIO_ON | |
1128 | }; | |
1129 | ||
1130 | /* rfkill switches */ | |
1131 | enum tpacpi_rfk_id { | |
1132 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1133 | TPACPI_RFK_WWAN_SW_ID, | |
1134 | TPACPI_RFK_UWB_SW_ID, | |
1135 | TPACPI_RFK_SW_MAX | |
1136 | }; | |
1137 | ||
1138 | static const char *tpacpi_rfkill_names[] = { | |
1139 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1140 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1141 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1142 | [TPACPI_RFK_SW_MAX] = NULL | |
1143 | }; | |
1144 | ||
1145 | /* ThinkPad-ACPI rfkill subdriver */ | |
1146 | struct tpacpi_rfk { | |
1147 | struct rfkill *rfkill; | |
1148 | enum tpacpi_rfk_id id; | |
1149 | const struct tpacpi_rfk_ops *ops; | |
1150 | }; | |
1151 | ||
1152 | struct tpacpi_rfk_ops { | |
1153 | /* firmware interface */ | |
1154 | int (*get_status)(void); | |
1155 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1156 | }; | |
1157 | ||
1158 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1159 | ||
1160 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1161 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1162 | { | |
1163 | int status; | |
1164 | ||
1165 | if (!tp_rfk) | |
1166 | return -ENODEV; | |
1167 | ||
1168 | status = (tp_rfk->ops->get_status)(); | |
1169 | if (status < 0) | |
1170 | return status; | |
1171 | ||
1172 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1173 | (status == TPACPI_RFK_RADIO_OFF)); | |
1174 | ||
1175 | return status; | |
1176 | } | |
1177 | ||
1178 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1179 | static void tpacpi_rfk_update_swstate_all(void) | |
1180 | { | |
1181 | unsigned int i; | |
1182 | ||
1183 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1184 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1185 | } | |
1186 | ||
1187 | /* | |
1188 | * Sync the HW-blocking state of all rfkill switches, | |
1189 | * do notice it causes the rfkill core to schedule uevents | |
1190 | */ | |
1191 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1192 | { | |
1193 | unsigned int i; | |
1194 | struct tpacpi_rfk *tp_rfk; | |
1195 | ||
1196 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1197 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1198 | if (tp_rfk) { | |
1199 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1200 | blocked)) { | |
1201 | /* ignore -- we track sw block */ | |
1202 | } | |
1203 | } | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | /* Call to get the WLSW state from the firmware */ | |
1208 | static int hotkey_get_wlsw(void); | |
1209 | ||
1210 | /* Call to query WLSW state and update all rfkill switches */ | |
1211 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1212 | { | |
1213 | int res = hotkey_get_wlsw(); | |
1214 | int hw_blocked; | |
1215 | ||
1216 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1217 | if (res < 0) | |
1218 | return false; | |
1219 | ||
1220 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1221 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1222 | ||
1223 | return hw_blocked; | |
1224 | } | |
1225 | ||
1226 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1227 | { | |
1228 | struct tpacpi_rfk *tp_rfk = data; | |
1229 | int res; | |
1230 | ||
1231 | dbg_printk(TPACPI_DBG_RFKILL, | |
1232 | "request to change radio state to %s\n", | |
1233 | blocked ? "blocked" : "unblocked"); | |
1234 | ||
1235 | /* try to set radio state */ | |
1236 | res = (tp_rfk->ops->set_status)(blocked ? | |
1237 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1238 | ||
1239 | /* and update the rfkill core with whatever the FW really did */ | |
1240 | tpacpi_rfk_update_swstate(tp_rfk); | |
1241 | ||
1242 | return (res < 0) ? res : 0; | |
1243 | } | |
1244 | ||
1245 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1246 | .set_block = tpacpi_rfk_hook_set_block, | |
1247 | }; | |
1248 | ||
1249 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1250 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1251 | const enum rfkill_type rfktype, |
1252 | const char *name, | |
19d337df | 1253 | const bool set_default) |
0e74dc26 | 1254 | { |
19d337df | 1255 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1256 | int res; |
06d5caf4 | 1257 | bool sw_state = false; |
5451a923 | 1258 | bool hw_state; |
06d5caf4 | 1259 | int sw_status; |
90d9d3c7 | 1260 | |
19d337df JB |
1261 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1262 | ||
19d337df JB |
1263 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1264 | if (atp_rfk) | |
1265 | atp_rfk->rfkill = rfkill_alloc(name, | |
1266 | &tpacpi_pdev->dev, | |
1267 | rfktype, | |
1268 | &tpacpi_rfk_rfkill_ops, | |
1269 | atp_rfk); | |
1270 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1271 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1272 | kfree(atp_rfk); |
0e74dc26 HMH |
1273 | return -ENOMEM; |
1274 | } | |
1275 | ||
19d337df JB |
1276 | atp_rfk->id = id; |
1277 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1278 | |
06d5caf4 AJ |
1279 | sw_status = (tp_rfkops->get_status)(); |
1280 | if (sw_status < 0) { | |
0978e012 JP |
1281 | pr_err("failed to read initial state for %s, error %d\n", |
1282 | name, sw_status); | |
b3fa1329 | 1283 | } else { |
06d5caf4 | 1284 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1285 | if (set_default) { |
1286 | /* try to keep the initial state, since we ask the | |
1287 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1288 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1289 | } |
1290 | } | |
5451a923 HMH |
1291 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1292 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1293 | |
1294 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1295 | if (res < 0) { |
0978e012 | 1296 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1297 | rfkill_destroy(atp_rfk->rfkill); |
1298 | kfree(atp_rfk); | |
0e74dc26 HMH |
1299 | return res; |
1300 | } | |
1301 | ||
19d337df | 1302 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1303 | |
0978e012 | 1304 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1305 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1306 | return 0; |
1307 | } | |
1308 | ||
19d337df | 1309 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1310 | { |
19d337df JB |
1311 | struct tpacpi_rfk *tp_rfk; |
1312 | ||
1313 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1314 | ||
1315 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1316 | if (tp_rfk) { | |
1317 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1318 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1319 | tpacpi_rfkill_switches[id] = NULL; |
1320 | kfree(tp_rfk); | |
1321 | } | |
73a94d86 HMH |
1322 | } |
1323 | ||
1324 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1325 | { | |
1326 | printk_deprecated_attribute(what, | |
1327 | "Please switch to generic rfkill before year 2010"); | |
1328 | } | |
1329 | ||
19d337df JB |
1330 | /* sysfs <radio> enable ------------------------------------------------ */ |
1331 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1332 | struct device_attribute *attr, | |
1333 | char *buf) | |
1334 | { | |
1335 | int status; | |
1336 | ||
1337 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1338 | ||
1339 | /* This is in the ABI... */ | |
1340 | if (tpacpi_rfk_check_hwblock_state()) { | |
1341 | status = TPACPI_RFK_RADIO_OFF; | |
1342 | } else { | |
1343 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1344 | if (status < 0) | |
1345 | return status; | |
1346 | } | |
1347 | ||
1348 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1349 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1350 | } | |
1351 | ||
1352 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1353 | struct device_attribute *attr, | |
1354 | const char *buf, size_t count) | |
1355 | { | |
1356 | unsigned long t; | |
1357 | int res; | |
1358 | ||
1359 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1360 | ||
1361 | if (parse_strtoul(buf, 1, &t)) | |
1362 | return -EINVAL; | |
1363 | ||
1364 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1365 | ||
1366 | /* This is in the ABI... */ | |
1367 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1368 | return -EPERM; | |
1369 | ||
1370 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1371 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1372 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1373 | ||
1374 | return (res < 0) ? res : count; | |
1375 | } | |
1376 | ||
1377 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1378 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1379 | { |
19d337df | 1380 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1381 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1382 | else { |
1383 | int status; | |
1384 | ||
1385 | /* This is in the ABI... */ | |
1386 | if (tpacpi_rfk_check_hwblock_state()) { | |
1387 | status = TPACPI_RFK_RADIO_OFF; | |
1388 | } else { | |
1389 | status = tpacpi_rfk_update_swstate( | |
1390 | tpacpi_rfkill_switches[id]); | |
1391 | if (status < 0) | |
1392 | return status; | |
1393 | } | |
1394 | ||
887965e6 | 1395 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1396 | (status == TPACPI_RFK_RADIO_ON) ? |
1397 | "enabled" : "disabled"); | |
887965e6 | 1398 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1399 | } |
1400 | ||
887965e6 | 1401 | return 0; |
19d337df JB |
1402 | } |
1403 | ||
1404 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1405 | { | |
1406 | char *cmd; | |
1407 | int status = -1; | |
1408 | int res = 0; | |
1409 | ||
1410 | if (id >= TPACPI_RFK_SW_MAX) | |
1411 | return -ENODEV; | |
1412 | ||
1413 | while ((cmd = next_cmd(&buf))) { | |
1414 | if (strlencmp(cmd, "enable") == 0) | |
1415 | status = TPACPI_RFK_RADIO_ON; | |
1416 | else if (strlencmp(cmd, "disable") == 0) | |
1417 | status = TPACPI_RFK_RADIO_OFF; | |
1418 | else | |
1419 | return -EINVAL; | |
1420 | } | |
1421 | ||
1422 | if (status != -1) { | |
1423 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1424 | (status == TPACPI_RFK_RADIO_ON) ? | |
1425 | "enable" : "disable", | |
1426 | tpacpi_rfkill_names[id]); | |
1427 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1428 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1429 | } | |
1430 | ||
1431 | return res; | |
1432 | } | |
1433 | ||
56b6aeb0 | 1434 | /************************************************************************* |
b21a15f6 | 1435 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1436 | */ |
1437 | ||
b21a15f6 | 1438 | /* interface_version --------------------------------------------------- */ |
ac3054c4 | 1439 | static ssize_t interface_version_show(struct device_driver *drv, char *buf) |
1da177e4 | 1440 | { |
b21a15f6 HMH |
1441 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1442 | } | |
ac3054c4 | 1443 | static DRIVER_ATTR_RO(interface_version); |
b21a15f6 HMH |
1444 | |
1445 | /* debug_level --------------------------------------------------------- */ | |
ac3054c4 | 1446 | static ssize_t debug_level_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
1447 | { |
1448 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1449 | } | |
1450 | ||
ac3054c4 GKH |
1451 | static ssize_t debug_level_store(struct device_driver *drv, const char *buf, |
1452 | size_t count) | |
b21a15f6 HMH |
1453 | { |
1454 | unsigned long t; | |
1455 | ||
1456 | if (parse_strtoul(buf, 0xffff, &t)) | |
1457 | return -EINVAL; | |
1458 | ||
1459 | dbg_level = t; | |
1460 | ||
1461 | return count; | |
1462 | } | |
ac3054c4 | 1463 | static DRIVER_ATTR_RW(debug_level); |
b21a15f6 HMH |
1464 | |
1465 | /* version ------------------------------------------------------------- */ | |
ac3054c4 | 1466 | static ssize_t version_show(struct device_driver *drv, char *buf) |
b21a15f6 | 1467 | { |
35ff8b9f HMH |
1468 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1469 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 | 1470 | } |
ac3054c4 | 1471 | static DRIVER_ATTR_RO(version); |
b21a15f6 HMH |
1472 | |
1473 | /* --------------------------------------------------------------------- */ | |
1474 | ||
a73f3091 HMH |
1475 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1476 | ||
a73f3091 | 1477 | /* wlsw_emulstate ------------------------------------------------------ */ |
ac3054c4 | 1478 | static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1479 | { |
1480 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1481 | } | |
1482 | ||
ac3054c4 GKH |
1483 | static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf, |
1484 | size_t count) | |
a73f3091 HMH |
1485 | { |
1486 | unsigned long t; | |
1487 | ||
1488 | if (parse_strtoul(buf, 1, &t)) | |
1489 | return -EINVAL; | |
1490 | ||
19d337df | 1491 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1492 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1493 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1494 | } | |
a73f3091 HMH |
1495 | |
1496 | return count; | |
1497 | } | |
ac3054c4 | 1498 | static DRIVER_ATTR_RW(wlsw_emulstate); |
a73f3091 HMH |
1499 | |
1500 | /* bluetooth_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1501 | static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1502 | { |
1503 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1504 | } | |
1505 | ||
ac3054c4 GKH |
1506 | static ssize_t bluetooth_emulstate_store(struct device_driver *drv, |
1507 | const char *buf, size_t count) | |
a73f3091 HMH |
1508 | { |
1509 | unsigned long t; | |
1510 | ||
1511 | if (parse_strtoul(buf, 1, &t)) | |
1512 | return -EINVAL; | |
1513 | ||
1514 | tpacpi_bluetooth_emulstate = !!t; | |
1515 | ||
1516 | return count; | |
1517 | } | |
ac3054c4 | 1518 | static DRIVER_ATTR_RW(bluetooth_emulstate); |
a73f3091 HMH |
1519 | |
1520 | /* wwan_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1521 | static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1522 | { |
1523 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1524 | } | |
1525 | ||
ac3054c4 GKH |
1526 | static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf, |
1527 | size_t count) | |
a73f3091 HMH |
1528 | { |
1529 | unsigned long t; | |
1530 | ||
1531 | if (parse_strtoul(buf, 1, &t)) | |
1532 | return -EINVAL; | |
1533 | ||
1534 | tpacpi_wwan_emulstate = !!t; | |
1535 | ||
1536 | return count; | |
1537 | } | |
ac3054c4 | 1538 | static DRIVER_ATTR_RW(wwan_emulstate); |
a73f3091 | 1539 | |
0045c0aa | 1540 | /* uwb_emulstate ------------------------------------------------- */ |
ac3054c4 | 1541 | static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf) |
0045c0aa HMH |
1542 | { |
1543 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1544 | } | |
1545 | ||
ac3054c4 GKH |
1546 | static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf, |
1547 | size_t count) | |
0045c0aa HMH |
1548 | { |
1549 | unsigned long t; | |
1550 | ||
1551 | if (parse_strtoul(buf, 1, &t)) | |
1552 | return -EINVAL; | |
1553 | ||
1554 | tpacpi_uwb_emulstate = !!t; | |
1555 | ||
1556 | return count; | |
1557 | } | |
ac3054c4 | 1558 | static DRIVER_ATTR_RW(uwb_emulstate); |
a73f3091 HMH |
1559 | #endif |
1560 | ||
1561 | /* --------------------------------------------------------------------- */ | |
1562 | ||
35ff8b9f | 1563 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1564 | &driver_attr_debug_level, &driver_attr_version, |
1565 | &driver_attr_interface_version, | |
1566 | }; | |
1567 | ||
1568 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1569 | { | |
1570 | int i, res; | |
1571 | ||
1572 | i = 0; | |
1573 | res = 0; | |
1574 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1575 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1576 | i++; | |
1577 | } | |
1578 | ||
a73f3091 HMH |
1579 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1580 | if (!res && dbg_wlswemul) | |
1581 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1582 | if (!res && dbg_bluetoothemul) | |
1583 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1584 | if (!res && dbg_wwanemul) | |
1585 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1586 | if (!res && dbg_uwbemul) |
1587 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1588 | #endif |
1589 | ||
b21a15f6 HMH |
1590 | return res; |
1591 | } | |
1592 | ||
1593 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1594 | { | |
1595 | int i; | |
1596 | ||
35ff8b9f | 1597 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1598 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1599 | |
1600 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1601 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1602 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1603 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1604 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1605 | #endif |
b21a15f6 HMH |
1606 | } |
1607 | ||
600a99fa HMH |
1608 | /************************************************************************* |
1609 | * Firmware Data | |
1610 | */ | |
1611 | ||
1612 | /* | |
1613 | * Table of recommended minimum BIOS versions | |
1614 | * | |
1615 | * Reasons for listing: | |
9ddc5b6f | 1616 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1617 | * bugs and bad ACPI behaviour on older versions |
1618 | * | |
1619 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1620 | * | |
1621 | * 3. BIOS with known reduced functionality in older versions | |
1622 | * | |
1623 | * We recommend the latest BIOS and EC version. | |
1624 | * We only support the latest BIOS and EC fw version as a rule. | |
1625 | * | |
1626 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1627 | * Information from users in ThinkWiki | |
e675abaf HMH |
1628 | * |
1629 | * WARNING: we use this table also to detect that the machine is | |
1630 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1631 | */ |
1632 | ||
1633 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1634 | { .vendor = (__v), \ | |
1635 | .bios = TPID(__id1, __id2), \ | |
1636 | .ec = TPACPI_MATCH_ANY, \ | |
1637 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1638 | | (__bv1) << 8 | (__bv2) } | |
1639 | ||
1640 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1641 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1642 | { .vendor = (__v), \ |
1643 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1644 | .ec = __eid, \ |
600a99fa HMH |
1645 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1646 | | (__bv1) << 8 | (__bv2) } | |
1647 | ||
1648 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1649 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1650 | ||
275014ae | 1651 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1652 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1653 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1654 | __bv1, __bv2, TPID(__id1, __id2), \ |
1655 | __ev1, __ev2), \ | |
1656 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1657 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1658 | __ev1, __ev2) | |
600a99fa | 1659 | |
275014ae | 1660 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1661 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1662 | __eid1, __eid2, __ev1, __ev2) \ | |
1663 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1664 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1665 | __ev1, __ev2), \ | |
1666 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1667 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1668 | __ev1, __ev2) | |
600a99fa HMH |
1669 | |
1670 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1671 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1672 | ||
1673 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1674 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1675 | __bv1, __bv2, TPID(__id1, __id2), \ |
1676 | __ev1, __ev2) | |
600a99fa HMH |
1677 | |
1678 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1679 | __eid1, __eid2, __ev1, __ev2) \ | |
1680 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1681 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1682 | __ev1, __ev2) | |
600a99fa HMH |
1683 | |
1684 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1685 | /* Numeric models ------------------ */ | |
1686 | /* FW MODEL BIOS VERS */ | |
1687 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1688 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1689 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1690 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1691 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1692 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1693 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1694 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1695 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1696 | ||
1697 | /* A-series ------------------------- */ | |
1698 | /* FW MODEL BIOS VERS EC VERS */ | |
1699 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1700 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1701 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1702 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1703 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1704 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1705 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1706 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1707 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1708 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1709 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1710 | ||
1711 | /* G-series ------------------------- */ | |
1712 | /* FW MODEL BIOS VERS */ | |
1713 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1714 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1715 | ||
1716 | /* R-series, T-series --------------- */ | |
1717 | /* FW MODEL BIOS VERS EC VERS */ | |
1718 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1719 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1720 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1721 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1722 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1723 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1724 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1725 | T40/p, T41/p, T42/p (1) */ | |
1726 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1727 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1728 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1729 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1730 | ||
1731 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1732 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1733 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1734 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1735 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1736 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1737 | ||
1738 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1739 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1740 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1741 | |
1742 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1743 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1744 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1745 | ||
1746 | /* X-series ------------------------- */ | |
1747 | /* FW MODEL BIOS VERS EC VERS */ | |
1748 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1749 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1750 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1751 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1752 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1753 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1754 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1755 | ||
90765c6a HMH |
1756 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1757 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1758 | |
1759 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1760 | /* (1) - older versions known to lack functionality */ | |
1761 | }; | |
1762 | ||
1763 | #undef TPV_QL1 | |
1764 | #undef TPV_QL0 | |
1765 | #undef TPV_QI2 | |
1766 | #undef TPV_QI1 | |
1767 | #undef TPV_QI0 | |
1768 | #undef TPV_Q_X | |
1769 | #undef TPV_Q | |
1770 | ||
1771 | static void __init tpacpi_check_outdated_fw(void) | |
1772 | { | |
1773 | unsigned long fwvers; | |
1774 | u16 ec_version, bios_version; | |
1775 | ||
1776 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1777 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1778 | ||
1779 | if (!fwvers) | |
1780 | return; | |
1781 | ||
1782 | bios_version = fwvers & 0xffffU; | |
1783 | ec_version = (fwvers >> 16) & 0xffffU; | |
1784 | ||
1785 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1786 | if ((bios_version > thinkpad_id.bios_release) || | |
1787 | (ec_version > thinkpad_id.ec_release && | |
1788 | ec_version != TPACPI_MATCH_ANY)) { | |
1789 | /* | |
1790 | * The changelogs would let us track down the exact | |
1791 | * reason, but it is just too much of a pain to track | |
1792 | * it. We only list BIOSes that are either really | |
1793 | * broken, or really stable to begin with, so it is | |
1794 | * best if the user upgrades the firmware anyway. | |
1795 | */ | |
0978e012 | 1796 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
5cac62ac | 1797 | pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n"); |
600a99fa HMH |
1798 | } |
1799 | } | |
1800 | ||
e675abaf HMH |
1801 | static bool __init tpacpi_is_fw_known(void) |
1802 | { | |
1803 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1804 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1805 | } | |
1806 | ||
b21a15f6 HMH |
1807 | /**************************************************************************** |
1808 | **************************************************************************** | |
1809 | * | |
1810 | * Subdrivers | |
1811 | * | |
1812 | **************************************************************************** | |
1813 | ****************************************************************************/ | |
1814 | ||
1815 | /************************************************************************* | |
7a43f788 | 1816 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1817 | */ |
1818 | ||
887965e6 | 1819 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1820 | { |
887965e6 AD |
1821 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1822 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1823 | return 0; | |
1da177e4 LT |
1824 | } |
1825 | ||
a5763f22 HMH |
1826 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1827 | .name = "driver", | |
1828 | .read = thinkpad_acpi_driver_read, | |
1829 | }; | |
1830 | ||
56b6aeb0 HMH |
1831 | /************************************************************************* |
1832 | * Hotkey subdriver | |
1833 | */ | |
1834 | ||
0d922e3b HMH |
1835 | /* |
1836 | * ThinkPad firmware event model | |
1837 | * | |
1838 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1839 | * notifications (which follow the ACPI standard), and a private event | |
1840 | * interface. | |
1841 | * | |
1842 | * The private event interface also issues events for the hotkeys. As | |
1843 | * the driver gained features, the event handling code ended up being | |
1844 | * built around the hotkey subdriver. This will need to be refactored | |
1845 | * to a more formal event API eventually. | |
1846 | * | |
1847 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1848 | * such as "brightness has changed", "volume has changed", depending on | |
1849 | * the ThinkPad model and how the firmware is operating. | |
1850 | * | |
1851 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1852 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1853 | * firmware model and version. | |
1854 | */ | |
1855 | ||
f74a27d4 HMH |
1856 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1857 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1858 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1859 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1860 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1861 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1862 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1863 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1864 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1865 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1866 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1867 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1868 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1869 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1870 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1871 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1872 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1873 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1874 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1875 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1876 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1877 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1878 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1879 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1880 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1881 | TP_ACPI_HOTKEYSCAN_UNK1, |
1882 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1883 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1884 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1885 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1886 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1887 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1888 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1889 | ||
149c8c75 CK |
1890 | /* Adaptive keyboard keycodes */ |
1891 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
1892 | TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
6a68d855 BN |
1893 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, |
1894 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1895 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1896 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1897 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1898 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1899 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1900 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1901 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1902 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1903 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1904 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1905 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1906 | TP_ACPI_HOTKEYSCAN_BACK, | |
1907 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1908 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1909 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1910 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1911 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1912 | ||
696c6523 CK |
1913 | /* Lenovo extended keymap, starting at 0x1300 */ |
1914 | TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
1915 | /* first new observed key (star, favorites) is 0x1311 */ | |
1916 | TP_ACPI_HOTKEYSCAN_STAR = 69, | |
1917 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, | |
1918 | TP_ACPI_HOTKEYSCAN_UNK25, | |
1919 | TP_ACPI_HOTKEYSCAN_BLUETOOTH, | |
1920 | TP_ACPI_HOTKEYSCAN_KEYBOARD, | |
1921 | ||
34a656d2 HMH |
1922 | /* Hotkey keymap size */ |
1923 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1924 | }; |
1925 | ||
0d922e3b | 1926 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1927 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1928 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1929 | }; | |
1930 | ||
1931 | enum { /* Positions of some of the keys in hotkey masks */ | |
1932 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1933 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1934 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1935 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1936 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
c685e20d | 1937 | TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
01e88f25 HMH |
1938 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, |
1939 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1940 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1941 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1942 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1943 | }; | |
1944 | ||
1945 | enum { /* NVRAM to ACPI HKEY group map */ | |
1946 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1947 | TP_ACPI_HKEY_ZOOM_MASK | | |
1948 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1949 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1950 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1951 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1952 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1953 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1954 | TP_ACPI_HKEY_MUTE_MASK, | |
1955 | }; | |
1956 | ||
1957 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1958 | struct tp_nvram_state { | |
1959 | u16 thinkpad_toggle:1; | |
1960 | u16 zoom_toggle:1; | |
1961 | u16 display_toggle:1; | |
1962 | u16 thinklight_toggle:1; | |
1963 | u16 hibernate_toggle:1; | |
1964 | u16 displayexp_toggle:1; | |
1965 | u16 display_state:1; | |
1966 | u16 brightness_toggle:1; | |
1967 | u16 volume_toggle:1; | |
1968 | u16 mute:1; | |
1969 | ||
1970 | u8 brightness_level; | |
1971 | u8 volume_level; | |
1972 | }; | |
1973 | ||
db25f16d | 1974 | /* kthread for the hotkey poller */ |
01e88f25 | 1975 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 1976 | |
db25f16d | 1977 | /* |
0d922e3b HMH |
1978 | * Acquire mutex to write poller control variables as an |
1979 | * atomic block. | |
1980 | * | |
1981 | * Increment hotkey_config_change when changing them if you | |
1982 | * want the kthread to forget old state. | |
db25f16d HMH |
1983 | * |
1984 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1985 | */ | |
01e88f25 HMH |
1986 | static struct mutex hotkey_thread_data_mutex; |
1987 | static unsigned int hotkey_config_change; | |
1988 | ||
db25f16d HMH |
1989 | /* |
1990 | * hotkey poller control variables | |
1991 | * | |
1992 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
1993 | * |
1994 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1995 | * should be used only when the changes need to be taken as | |
1996 | * a block, OR when one needs to force the kthread to forget | |
1997 | * old state. | |
db25f16d HMH |
1998 | */ |
1999 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2000 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2001 | ||
2002 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2003 | do { \ | |
2004 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2005 | hotkey_config_change++; \ | |
2006 | } while (0); | |
2007 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2008 | mutex_unlock(&hotkey_thread_data_mutex); | |
2009 | ||
01e88f25 HMH |
2010 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2011 | ||
2012 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2013 | #define HOTKEY_CONFIG_CRITICAL_START |
2014 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2015 | |
2016 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2017 | ||
f74a27d4 HMH |
2018 | static struct mutex hotkey_mutex; |
2019 | ||
a713b4d7 HMH |
2020 | static enum { /* Reasons for waking up */ |
2021 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2022 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2023 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2024 | } hotkey_wakeup_reason; | |
2025 | ||
2026 | static int hotkey_autosleep_ack; | |
2027 | ||
0d922e3b HMH |
2028 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2029 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
0118c2d3 | 2030 | static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ |
0d922e3b HMH |
2031 | static u32 hotkey_reserved_mask; /* events better left disabled */ |
2032 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2033 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2034 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2035 | |
edf0e0e5 | 2036 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2037 | |
94954cc6 | 2038 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2039 | |
8b468c0c HMH |
2040 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2041 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2042 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2043 | |
6c231bd5 HMH |
2044 | /* HKEY.MHKG() return bits */ |
2045 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
dda3ec0a BB |
2046 | enum { |
2047 | TP_ACPI_MULTI_MODE_INVALID = 0, | |
2048 | TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0, | |
2049 | TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1, | |
2050 | TP_ACPI_MULTI_MODE_TABLET = 1 << 2, | |
2051 | TP_ACPI_MULTI_MODE_FLAT = 1 << 3, | |
2052 | TP_ACPI_MULTI_MODE_STAND = 1 << 4, | |
2053 | TP_ACPI_MULTI_MODE_TENT = 1 << 5, | |
2054 | TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6, | |
2055 | }; | |
2056 | ||
2057 | enum { | |
2058 | /* The following modes are considered tablet mode for the purpose of | |
2059 | * reporting the status to userspace. i.e. in all these modes it makes | |
2060 | * sense to disable the laptop input devices such as touchpad and | |
2061 | * keyboard. | |
2062 | */ | |
2063 | TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET | | |
2064 | TP_ACPI_MULTI_MODE_STAND | | |
2065 | TP_ACPI_MULTI_MODE_TENT | | |
2066 | TP_ACPI_MULTI_MODE_STAND_TENT, | |
2067 | }; | |
6c231bd5 | 2068 | |
19d337df | 2069 | static int hotkey_get_wlsw(void) |
74941a69 | 2070 | { |
19d337df JB |
2071 | int status; |
2072 | ||
2073 | if (!tp_features.hotkey_wlsw) | |
2074 | return -ENODEV; | |
2075 | ||
a73f3091 | 2076 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2077 | if (dbg_wlswemul) |
2078 | return (tpacpi_wlsw_emulstate) ? | |
2079 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2080 | #endif |
19d337df JB |
2081 | |
2082 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2083 | return -EIO; |
19d337df JB |
2084 | |
2085 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2086 | } |
2087 | ||
dda3ec0a BB |
2088 | static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode) |
2089 | { | |
2090 | int type = (s >> 16) & 0xffff; | |
2091 | int value = s & 0xffff; | |
2092 | int mode = TP_ACPI_MULTI_MODE_INVALID; | |
2093 | int valid_modes = 0; | |
2094 | ||
2095 | if (has_tablet_mode) | |
2096 | *has_tablet_mode = 0; | |
2097 | ||
2098 | switch (type) { | |
2099 | case 1: | |
2100 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2101 | TP_ACPI_MULTI_MODE_TABLET | | |
2102 | TP_ACPI_MULTI_MODE_STAND_TENT; | |
2103 | break; | |
2104 | case 2: | |
2105 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2106 | TP_ACPI_MULTI_MODE_FLAT | | |
2107 | TP_ACPI_MULTI_MODE_TABLET | | |
2108 | TP_ACPI_MULTI_MODE_STAND | | |
2109 | TP_ACPI_MULTI_MODE_TENT; | |
2110 | break; | |
2111 | case 3: | |
2112 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2113 | TP_ACPI_MULTI_MODE_FLAT; | |
2114 | break; | |
2115 | case 4: | |
2116 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2117 | TP_ACPI_MULTI_MODE_TABLET | | |
2118 | TP_ACPI_MULTI_MODE_STAND | | |
2119 | TP_ACPI_MULTI_MODE_TENT; | |
2120 | break; | |
2121 | case 5: | |
2122 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2123 | TP_ACPI_MULTI_MODE_FLAT | | |
2124 | TP_ACPI_MULTI_MODE_TABLET | | |
2125 | TP_ACPI_MULTI_MODE_STAND | | |
2126 | TP_ACPI_MULTI_MODE_TENT; | |
2127 | break; | |
2128 | default: | |
2129 | pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n", | |
2130 | type, value, TPACPI_MAIL); | |
2131 | return 0; | |
2132 | } | |
2133 | ||
2134 | if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE)) | |
2135 | *has_tablet_mode = 1; | |
2136 | ||
2137 | switch (value) { | |
2138 | case 1: | |
2139 | mode = TP_ACPI_MULTI_MODE_LAPTOP; | |
2140 | break; | |
2141 | case 2: | |
2142 | mode = TP_ACPI_MULTI_MODE_FLAT; | |
2143 | break; | |
2144 | case 3: | |
2145 | mode = TP_ACPI_MULTI_MODE_TABLET; | |
2146 | break; | |
2147 | case 4: | |
2148 | if (type == 1) | |
2149 | mode = TP_ACPI_MULTI_MODE_STAND_TENT; | |
2150 | else | |
2151 | mode = TP_ACPI_MULTI_MODE_STAND; | |
2152 | break; | |
2153 | case 5: | |
2154 | mode = TP_ACPI_MULTI_MODE_TENT; | |
2155 | break; | |
2156 | default: | |
2157 | if (type == 5 && value == 0xffff) { | |
2158 | pr_warn("Multi mode status is undetected, assuming laptop\n"); | |
2159 | return 0; | |
2160 | } | |
2161 | } | |
2162 | ||
2163 | if (!(mode & valid_modes)) { | |
2164 | pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n", | |
2165 | value, type, TPACPI_MAIL); | |
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE); | |
2170 | } | |
2171 | ||
6c231bd5 HMH |
2172 | static int hotkey_get_tablet_mode(int *status) |
2173 | { | |
2174 | int s; | |
2175 | ||
b03f4d49 L |
2176 | switch (tp_features.hotkey_tablet) { |
2177 | case TP_HOTKEY_TABLET_USES_MHKG: | |
2178 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2179 | return -EIO; | |
2180 | ||
2181 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); | |
2182 | break; | |
dda3ec0a BB |
2183 | case TP_HOTKEY_TABLET_USES_GMMS: |
2184 | if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0)) | |
b03f4d49 L |
2185 | return -EIO; |
2186 | ||
dda3ec0a | 2187 | *status = hotkey_gmms_get_tablet_mode(s, NULL); |
b03f4d49 L |
2188 | break; |
2189 | default: | |
2190 | break; | |
2191 | } | |
6c231bd5 | 2192 | |
cee47f5a | 2193 | return 0; |
6c231bd5 HMH |
2194 | } |
2195 | ||
b2c985e7 | 2196 | /* |
0d922e3b HMH |
2197 | * Reads current event mask from firmware, and updates |
2198 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2199 | * from hotkey_user_mask that are unavailable to be | |
2200 | * delivered (shadow requirement of the userspace ABI). | |
2201 | * | |
b2c985e7 HMH |
2202 | * Call with hotkey_mutex held |
2203 | */ | |
2204 | static int hotkey_mask_get(void) | |
2205 | { | |
2206 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2207 | u32 m = 0; |
2208 | ||
01e88f25 | 2209 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2210 | return -EIO; |
0d922e3b HMH |
2211 | |
2212 | hotkey_acpi_mask = m; | |
2213 | } else { | |
2214 | /* no mask support doesn't mean no event support... */ | |
2215 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2216 | } |
0d922e3b HMH |
2217 | |
2218 | /* sync userspace-visible mask */ | |
2219 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2220 | |
2221 | return 0; | |
2222 | } | |
2223 | ||
df6dd1b3 | 2224 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2225 | { |
2226 | /* log only what the user can fix... */ | |
2227 | const u32 wantedmask = hotkey_driver_mask & | |
2228 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2229 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2230 | ||
2231 | if (wantedmask) | |
0978e012 | 2232 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2233 | } |
2234 | ||
b2c985e7 | 2235 | /* |
0d922e3b HMH |
2236 | * Set the firmware mask when supported |
2237 | * | |
2238 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2239 | * | |
2240 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2241 | * | |
b2c985e7 HMH |
2242 | * Call with hotkey_mutex held |
2243 | */ | |
2244 | static int hotkey_mask_set(u32 mask) | |
2245 | { | |
2246 | int i; | |
2247 | int rc = 0; | |
2248 | ||
0d922e3b | 2249 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2250 | |
0d922e3b | 2251 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2252 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2253 | if (!acpi_evalf(hkey_handle, |
2254 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2255 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2256 | rc = -EIO; |
2257 | break; | |
b2c985e7 HMH |
2258 | } |
2259 | } | |
0d922e3b | 2260 | } |
b2c985e7 | 2261 | |
0d922e3b HMH |
2262 | /* |
2263 | * We *must* make an inconditional call to hotkey_mask_get to | |
2264 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2265 | * | |
2266 | * Take the opportunity to also log when we cannot _enable_ | |
2267 | * a given event. | |
2268 | */ | |
2269 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
5cac62ac | 2270 | pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n", |
0978e012 | 2271 | fwmask, hotkey_acpi_mask); |
b2c985e7 HMH |
2272 | } |
2273 | ||
6b30eb7d HMH |
2274 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2275 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2276 | |
2277 | return rc; | |
2278 | } | |
2279 | ||
2280 | /* | |
2281 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2282 | * | |
2283 | * Call with hotkey_mutex held | |
2284 | */ | |
2285 | static int hotkey_user_mask_set(const u32 mask) | |
2286 | { | |
2287 | int rc; | |
2288 | ||
2289 | /* Give people a chance to notice they are doing something that | |
2290 | * is bound to go boom on their users sooner or later */ | |
2291 | if (!tp_warned.hotkey_mask_ff && | |
2292 | (mask == 0xffff || mask == 0xffffff || | |
2293 | mask == 0xffffffff)) { | |
2294 | tp_warned.hotkey_mask_ff = 1; | |
5cac62ac AS |
2295 | pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n", |
2296 | mask); | |
2297 | pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n"); | |
0d922e3b HMH |
2298 | } |
2299 | ||
2300 | /* Try to enable what the user asked for, plus whatever we need. | |
2301 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2302 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2303 | ||
2304 | /* Enable the available bits in hotkey_user_mask */ | |
2305 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2306 | ||
b2c985e7 HMH |
2307 | return rc; |
2308 | } | |
2309 | ||
8b468c0c HMH |
2310 | /* |
2311 | * Sets the driver hotkey mask. | |
2312 | * | |
2313 | * Can be called even if the hotkey subdriver is inactive | |
2314 | */ | |
2315 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2316 | { | |
2317 | int rc; | |
2318 | ||
2319 | /* Do the right thing if hotkey_init has not been called yet */ | |
2320 | if (!tp_features.hotkey) { | |
2321 | hotkey_driver_mask = mask; | |
2322 | return 0; | |
2323 | } | |
2324 | ||
2325 | mutex_lock(&hotkey_mutex); | |
2326 | ||
2327 | HOTKEY_CONFIG_CRITICAL_START | |
2328 | hotkey_driver_mask = mask; | |
b684a363 | 2329 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2330 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2331 | #endif |
8b468c0c HMH |
2332 | HOTKEY_CONFIG_CRITICAL_END |
2333 | ||
2334 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2335 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2336 | hotkey_poll_setup(true); |
2337 | ||
8b468c0c HMH |
2338 | mutex_unlock(&hotkey_mutex); |
2339 | ||
2340 | return rc; | |
2341 | } | |
2342 | ||
b2c985e7 HMH |
2343 | static int hotkey_status_get(int *status) |
2344 | { | |
2345 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2346 | return -EIO; | |
2347 | ||
2348 | return 0; | |
2349 | } | |
2350 | ||
2586d566 | 2351 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2352 | { |
2586d566 | 2353 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2354 | return -EIO; |
2355 | ||
2356 | return 0; | |
2357 | } | |
2358 | ||
6c231bd5 | 2359 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2360 | { |
6c231bd5 | 2361 | int state; |
b3ec6f91 | 2362 | |
6c231bd5 HMH |
2363 | if (tp_features.hotkey_tablet && |
2364 | !hotkey_get_tablet_mode(&state)) { | |
2365 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2366 | |
6c231bd5 HMH |
2367 | input_report_switch(tpacpi_inputdev, |
2368 | SW_TABLET_MODE, !!state); | |
2369 | input_sync(tpacpi_inputdev); | |
2370 | ||
2371 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2372 | } | |
b3ec6f91 HMH |
2373 | } |
2374 | ||
0d922e3b HMH |
2375 | /* Do NOT call without validating scancode first */ |
2376 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2377 | { |
0d922e3b | 2378 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2379 | |
2380 | if (keycode != KEY_RESERVED) { | |
2381 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2382 | ||
5ffba7e6 | 2383 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2384 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2385 | input_sync(tpacpi_inputdev); |
2386 | ||
5ffba7e6 | 2387 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2388 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2389 | input_sync(tpacpi_inputdev); |
2390 | ||
2391 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2392 | } | |
2393 | } | |
2394 | ||
0d922e3b HMH |
2395 | /* Do NOT call without validating scancode first */ |
2396 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2397 | { | |
8b468c0c | 2398 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2399 | if (hotkey_user_mask & (1 << scancode)) |
2400 | tpacpi_input_send_key(scancode); | |
2401 | } | |
2402 | ||
01e88f25 HMH |
2403 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2404 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2405 | ||
0d922e3b | 2406 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2407 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2408 | { | |
0d922e3b | 2409 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2410 | } |
2411 | ||
0d922e3b | 2412 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2413 | { |
2414 | u8 d; | |
2415 | ||
2416 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2417 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2418 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2419 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2420 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2421 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2422 | } | |
c685e20d | 2423 | if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { |
01e88f25 HMH |
2424 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); |
2425 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2426 | } | |
2427 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2428 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2429 | n->displayexp_toggle = | |
2430 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2431 | } | |
2432 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2433 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2434 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2435 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2436 | n->brightness_toggle = | |
2437 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2438 | } | |
2439 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2440 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2441 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2442 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2443 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2444 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2445 | } | |
2446 | } | |
2447 | ||
2448 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2449 | do { \ |
2450 | if ((event_mask & (1 << __scancode)) && \ | |
2451 | oldn->__member != newn->__member) \ | |
2452 | tpacpi_hotkey_send_key(__scancode); \ | |
2453 | } while (0) | |
01e88f25 HMH |
2454 | |
2455 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2456 | do { \ |
2457 | if (event_mask & (1 << __scancode)) \ | |
2458 | tpacpi_hotkey_send_key(__scancode); \ | |
2459 | } while (0) | |
2460 | ||
2461 | static void issue_volchange(const unsigned int oldvol, | |
2462 | const unsigned int newvol, | |
2463 | const u32 event_mask) | |
2464 | { | |
2465 | unsigned int i = oldvol; | |
2466 | ||
2467 | while (i > newvol) { | |
2468 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2469 | i--; | |
5d756db9 | 2470 | } |
a4d44ba1 BW |
2471 | while (i < newvol) { |
2472 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2473 | i++; | |
2474 | } | |
2475 | } | |
5d756db9 | 2476 | |
a4d44ba1 BW |
2477 | static void issue_brightnesschange(const unsigned int oldbrt, |
2478 | const unsigned int newbrt, | |
2479 | const u32 event_mask) | |
2480 | { | |
2481 | unsigned int i = oldbrt; | |
28999022 | 2482 | |
a4d44ba1 BW |
2483 | while (i > newbrt) { |
2484 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2485 | i--; | |
28999022 | 2486 | } |
a4d44ba1 BW |
2487 | while (i < newbrt) { |
2488 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2489 | i++; | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2494 | struct tp_nvram_state *newn, | |
2495 | const u32 event_mask) | |
2496 | { | |
28999022 | 2497 | |
01e88f25 HMH |
2498 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2499 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2500 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2501 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2502 | ||
2503 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2504 | ||
2505 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2506 | ||
5d756db9 HMH |
2507 | /* |
2508 | * Handle volume | |
2509 | * | |
2510 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2511 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2512 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2513 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2514 | * - The act of unmuting issues volume up/down notification, |
2515 | * depending which key was used to unmute | |
2516 | * | |
2517 | * We are constrained to what the NVRAM can tell us, which is not much | |
2518 | * and certainly not enough if more than one volume hotkey was pressed | |
2519 | * since the last poll cycle. | |
2520 | * | |
2521 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2522 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2523 | */ | |
2524 | if (newn->mute) { | |
2525 | /* muted */ | |
2526 | if (!oldn->mute || | |
2527 | oldn->volume_toggle != newn->volume_toggle || | |
2528 | oldn->volume_level != newn->volume_level) { | |
2529 | /* recently muted, or repeated mute keypress, or | |
2530 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2531 | issue_volchange(oldn->volume_level, newn->volume_level, |
2532 | event_mask); | |
01e88f25 HMH |
2533 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2534 | } | |
5d756db9 HMH |
2535 | } else { |
2536 | /* unmute */ | |
2537 | if (oldn->mute) { | |
2538 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2539 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2540 | } |
2541 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2542 | issue_volchange(oldn->volume_level, newn->volume_level, |
2543 | event_mask); | |
5d756db9 HMH |
2544 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2545 | /* repeated vol up/down keypress at end of scale ? */ | |
2546 | if (newn->volume_level == 0) | |
01e88f25 | 2547 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2548 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2549 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2550 | } |
2551 | } | |
2552 | ||
2553 | /* handle brightness */ | |
28999022 HMH |
2554 | if (oldn->brightness_level != newn->brightness_level) { |
2555 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2556 | newn->brightness_level, event_mask); |
28999022 HMH |
2557 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2558 | /* repeated key presses that didn't change state */ | |
2559 | if (newn->brightness_level == 0) | |
01e88f25 | 2560 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2561 | else if (newn->brightness_level >= bright_maxlvl |
2562 | && !tp_features.bright_unkfw) | |
2563 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2564 | } |
01e88f25 HMH |
2565 | |
2566 | #undef TPACPI_COMPARE_KEY | |
2567 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2568 | } |
01e88f25 | 2569 | |
0d922e3b HMH |
2570 | /* |
2571 | * Polling driver | |
2572 | * | |
2573 | * We track all events in hotkey_source_mask all the time, since | |
2574 | * most of them are edge-based. We only issue those requested by | |
2575 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2576 | */ | |
01e88f25 HMH |
2577 | static int hotkey_kthread(void *data) |
2578 | { | |
2579 | struct tp_nvram_state s[2]; | |
0d922e3b | 2580 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2581 | unsigned int si, so; |
2582 | unsigned long t; | |
8a32c441 | 2583 | unsigned int change_detector; |
db25f16d | 2584 | unsigned int poll_freq; |
8a32c441 | 2585 | bool was_frozen; |
01e88f25 | 2586 | |
01e88f25 HMH |
2587 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2588 | goto exit; | |
2589 | ||
2590 | set_freezable(); | |
2591 | ||
2592 | so = 0; | |
2593 | si = 1; | |
2594 | t = 0; | |
2595 | ||
2596 | /* Initial state for compares */ | |
2597 | mutex_lock(&hotkey_thread_data_mutex); | |
2598 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2599 | poll_mask = hotkey_source_mask; |
2600 | event_mask = hotkey_source_mask & | |
2601 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2602 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2603 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2604 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2605 | |
db25f16d HMH |
2606 | while (!kthread_should_stop()) { |
2607 | if (t == 0) { | |
2608 | if (likely(poll_freq)) | |
2609 | t = 1000/poll_freq; | |
2610 | else | |
2611 | t = 100; /* should never happen... */ | |
2612 | } | |
01e88f25 | 2613 | t = msleep_interruptible(t); |
8a32c441 | 2614 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2615 | break; |
8a32c441 TH |
2616 | |
2617 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2618 | continue; |
2619 | ||
2620 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2621 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2622 | /* forget old state on thaw or config change */ |
2623 | si = so; | |
2624 | t = 0; | |
2625 | change_detector = hotkey_config_change; | |
2626 | } | |
0d922e3b HMH |
2627 | poll_mask = hotkey_source_mask; |
2628 | event_mask = hotkey_source_mask & | |
2629 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2630 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2631 | mutex_unlock(&hotkey_thread_data_mutex); |
2632 | ||
0d922e3b HMH |
2633 | if (likely(poll_mask)) { |
2634 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2635 | if (likely(si != so)) { |
2636 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2637 | event_mask); |
01e88f25 HMH |
2638 | } |
2639 | } | |
2640 | ||
2641 | so = si; | |
2642 | si ^= 1; | |
2643 | } | |
2644 | ||
2645 | exit: | |
01e88f25 HMH |
2646 | return 0; |
2647 | } | |
2648 | ||
db25f16d | 2649 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2650 | static void hotkey_poll_stop_sync(void) |
2651 | { | |
2652 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2653 | kthread_stop(tpacpi_hotkey_task); |
2654 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2655 | } |
2656 | } | |
2657 | ||
2658 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2659 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2660 | { |
0d922e3b HMH |
2661 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2662 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2663 | |
0d922e3b HMH |
2664 | if (hotkey_poll_freq > 0 && |
2665 | (poll_driver_mask || | |
2666 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2667 | if (!tpacpi_hotkey_task) { |
2668 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2669 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2670 | if (IS_ERR(tpacpi_hotkey_task)) { |
2671 | tpacpi_hotkey_task = NULL; | |
5cac62ac | 2672 | pr_err("could not create kernel thread for hotkey polling\n"); |
01e88f25 HMH |
2673 | } |
2674 | } | |
2675 | } else { | |
2676 | hotkey_poll_stop_sync(); | |
0d922e3b | 2677 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2678 | hotkey_poll_freq == 0) { |
5cac62ac | 2679 | pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n", |
0978e012 | 2680 | poll_user_mask, poll_driver_mask); |
01e88f25 HMH |
2681 | } |
2682 | } | |
2683 | } | |
2684 | ||
7f0cf712 | 2685 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2686 | { |
2687 | mutex_lock(&hotkey_mutex); | |
2688 | hotkey_poll_setup(may_warn); | |
2689 | mutex_unlock(&hotkey_mutex); | |
2690 | } | |
2691 | ||
db25f16d HMH |
2692 | /* call with hotkey_mutex held */ |
2693 | static void hotkey_poll_set_freq(unsigned int freq) | |
2694 | { | |
2695 | if (!freq) | |
2696 | hotkey_poll_stop_sync(); | |
2697 | ||
db25f16d | 2698 | hotkey_poll_freq = freq; |
db25f16d HMH |
2699 | } |
2700 | ||
1bc6b9cd HMH |
2701 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2702 | ||
7f0cf712 HMH |
2703 | static void hotkey_poll_setup(const bool __unused) |
2704 | { | |
2705 | } | |
2706 | ||
2707 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2708 | { |
2709 | } | |
2710 | ||
2711 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2712 | ||
01e88f25 HMH |
2713 | static int hotkey_inputdev_open(struct input_dev *dev) |
2714 | { | |
2715 | switch (tpacpi_lifecycle) { | |
2716 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2717 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2718 | hotkey_poll_setup_safe(false); |
01e88f25 | 2719 | return 0; |
b589ea4c HMH |
2720 | case TPACPI_LIFE_EXITING: |
2721 | return -EBUSY; | |
01e88f25 HMH |
2722 | } |
2723 | ||
2724 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2725 | BUG(); | |
2726 | return -EBUSY; | |
2727 | } | |
2728 | ||
2729 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2730 | { | |
2731 | /* disable hotkey polling when possible */ | |
b589ea4c | 2732 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2733 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2734 | hotkey_poll_setup_safe(false); |
01e88f25 | 2735 | } |
01e88f25 | 2736 | |
a0416420 HMH |
2737 | /* sysfs hotkey enable ------------------------------------------------- */ |
2738 | static ssize_t hotkey_enable_show(struct device *dev, | |
2739 | struct device_attribute *attr, | |
2740 | char *buf) | |
2741 | { | |
ae92bd17 | 2742 | int res, status; |
a0416420 | 2743 | |
2586d566 HMH |
2744 | printk_deprecated_attribute("hotkey_enable", |
2745 | "Hotkey reporting is always enabled"); | |
2746 | ||
b2c985e7 | 2747 | res = hotkey_status_get(&status); |
a0416420 HMH |
2748 | if (res) |
2749 | return res; | |
2750 | ||
2751 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2752 | } | |
2753 | ||
2754 | static ssize_t hotkey_enable_store(struct device *dev, | |
2755 | struct device_attribute *attr, | |
2756 | const char *buf, size_t count) | |
2757 | { | |
2758 | unsigned long t; | |
2586d566 HMH |
2759 | |
2760 | printk_deprecated_attribute("hotkey_enable", | |
2761 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2762 | |
2763 | if (parse_strtoul(buf, 1, &t)) | |
2764 | return -EINVAL; | |
2765 | ||
2586d566 HMH |
2766 | if (t == 0) |
2767 | return -EPERM; | |
a0416420 | 2768 | |
2586d566 | 2769 | return count; |
a0416420 HMH |
2770 | } |
2771 | ||
b4dd04ac | 2772 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2773 | |
2774 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2775 | static ssize_t hotkey_mask_show(struct device *dev, | |
2776 | struct device_attribute *attr, | |
2777 | char *buf) | |
2778 | { | |
0d922e3b | 2779 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2780 | } |
2781 | ||
2782 | static ssize_t hotkey_mask_store(struct device *dev, | |
2783 | struct device_attribute *attr, | |
2784 | const char *buf, size_t count) | |
2785 | { | |
2786 | unsigned long t; | |
b2c985e7 | 2787 | int res; |
a0416420 | 2788 | |
ae92bd17 | 2789 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2790 | return -EINVAL; |
2791 | ||
7646ea88 | 2792 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2793 | return -ERESTARTSYS; |
2794 | ||
0d922e3b | 2795 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2796 | |
2797 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2798 | hotkey_poll_setup(true); |
01e88f25 HMH |
2799 | #endif |
2800 | ||
b2c985e7 | 2801 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2802 | |
56e2c200 HMH |
2803 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2804 | ||
a0416420 HMH |
2805 | return (res) ? res : count; |
2806 | } | |
2807 | ||
b4dd04ac | 2808 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2809 | |
2810 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2811 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2812 | struct device_attribute *attr, | |
2813 | char *buf) | |
2814 | { | |
2586d566 | 2815 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2816 | } |
2817 | ||
b4dd04ac | 2818 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2819 | |
2820 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2821 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2822 | struct device_attribute *attr, | |
2823 | char *buf) | |
2824 | { | |
06777be6 HMH |
2825 | printk_deprecated_attribute("hotkey_bios_mask", |
2826 | "This attribute is useless."); | |
ae92bd17 | 2827 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2828 | } |
2829 | ||
b4dd04ac | 2830 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2831 | |
9b010de5 HMH |
2832 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2833 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2834 | struct device_attribute *attr, | |
2835 | char *buf) | |
2836 | { | |
01e88f25 HMH |
2837 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2838 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2839 | } |
2840 | ||
b4dd04ac | 2841 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 | 2842 | |
0118c2d3 DW |
2843 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2844 | static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, | |
2845 | struct device_attribute *attr, | |
2846 | char *buf) | |
2847 | { | |
2848 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
2849 | hotkey_adaptive_all_mask | hotkey_source_mask); | |
2850 | } | |
2851 | ||
2852 | static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); | |
2853 | ||
9b010de5 HMH |
2854 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
2855 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2856 | struct device_attribute *attr, | |
2857 | char *buf) | |
2858 | { | |
2859 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2860 | (hotkey_all_mask | hotkey_source_mask) |
2861 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2862 | } |
2863 | ||
b4dd04ac | 2864 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2865 | |
01e88f25 HMH |
2866 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2867 | ||
2868 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2869 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2870 | struct device_attribute *attr, | |
2871 | char *buf) | |
2872 | { | |
2873 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2874 | } | |
2875 | ||
2876 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2877 | struct device_attribute *attr, | |
2878 | const char *buf, size_t count) | |
2879 | { | |
2880 | unsigned long t; | |
0d922e3b HMH |
2881 | u32 r_ev; |
2882 | int rc; | |
01e88f25 HMH |
2883 | |
2884 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2885 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2886 | return -EINVAL; | |
2887 | ||
7646ea88 | 2888 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2889 | return -ERESTARTSYS; |
2890 | ||
2891 | HOTKEY_CONFIG_CRITICAL_START | |
2892 | hotkey_source_mask = t; | |
2893 | HOTKEY_CONFIG_CRITICAL_END | |
2894 | ||
0d922e3b HMH |
2895 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2896 | ~hotkey_source_mask); | |
db25f16d | 2897 | hotkey_poll_setup(true); |
0d922e3b HMH |
2898 | |
2899 | /* check if events needed by the driver got disabled */ | |
2900 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2901 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2902 | |
2903 | mutex_unlock(&hotkey_mutex); | |
2904 | ||
0d922e3b | 2905 | if (rc < 0) |
5cac62ac | 2906 | pr_err("hotkey_source_mask: failed to update the firmware event mask!\n"); |
0d922e3b HMH |
2907 | |
2908 | if (r_ev) | |
5cac62ac | 2909 | pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n", |
0978e012 | 2910 | r_ev); |
0d922e3b | 2911 | |
56e2c200 HMH |
2912 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2913 | ||
0d922e3b | 2914 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2915 | } |
2916 | ||
b4dd04ac | 2917 | static DEVICE_ATTR_RW(hotkey_source_mask); |
01e88f25 HMH |
2918 | |
2919 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2920 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2921 | struct device_attribute *attr, | |
2922 | char *buf) | |
2923 | { | |
2924 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2925 | } | |
2926 | ||
2927 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2928 | struct device_attribute *attr, | |
2929 | const char *buf, size_t count) | |
2930 | { | |
2931 | unsigned long t; | |
2932 | ||
2933 | if (parse_strtoul(buf, 25, &t)) | |
2934 | return -EINVAL; | |
2935 | ||
7646ea88 | 2936 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2937 | return -ERESTARTSYS; |
2938 | ||
db25f16d HMH |
2939 | hotkey_poll_set_freq(t); |
2940 | hotkey_poll_setup(true); | |
01e88f25 | 2941 | |
01e88f25 HMH |
2942 | mutex_unlock(&hotkey_mutex); |
2943 | ||
56e2c200 HMH |
2944 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2945 | ||
01e88f25 HMH |
2946 | return count; |
2947 | } | |
2948 | ||
b4dd04ac | 2949 | static DEVICE_ATTR_RW(hotkey_poll_freq); |
01e88f25 HMH |
2950 | |
2951 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2952 | ||
50ebec09 | 2953 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2954 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2955 | struct device_attribute *attr, | |
2956 | char *buf) | |
2957 | { | |
19d337df JB |
2958 | int res; |
2959 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2960 | if (res < 0) |
2961 | return res; | |
2962 | ||
19d337df JB |
2963 | /* Opportunistic update */ |
2964 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2965 | ||
2966 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2967 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2968 | } |
2969 | ||
b4dd04ac | 2970 | static DEVICE_ATTR_RO(hotkey_radio_sw); |
74941a69 | 2971 | |
50ebec09 HMH |
2972 | static void hotkey_radio_sw_notify_change(void) |
2973 | { | |
2974 | if (tp_features.hotkey_wlsw) | |
2975 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2976 | "hotkey_radio_sw"); | |
2977 | } | |
2978 | ||
6c231bd5 HMH |
2979 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2980 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2981 | struct device_attribute *attr, | |
2982 | char *buf) | |
2983 | { | |
2984 | int res, s; | |
2985 | res = hotkey_get_tablet_mode(&s); | |
2986 | if (res < 0) | |
2987 | return res; | |
2988 | ||
2989 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2990 | } | |
2991 | ||
b4dd04ac | 2992 | static DEVICE_ATTR_RO(hotkey_tablet_mode); |
6c231bd5 HMH |
2993 | |
2994 | static void hotkey_tablet_mode_notify_change(void) | |
2995 | { | |
2996 | if (tp_features.hotkey_tablet) | |
2997 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2998 | "hotkey_tablet_mode"); | |
2999 | } | |
3000 | ||
50ebec09 | 3001 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
3002 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
3003 | struct device_attribute *attr, | |
3004 | char *buf) | |
3005 | { | |
3006 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
3007 | } | |
3008 | ||
5fb73bc2 | 3009 | static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
a713b4d7 | 3010 | |
1d5a2b54 | 3011 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 3012 | { |
0d922e3b HMH |
3013 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3014 | "wakeup_reason"); | |
50ebec09 HMH |
3015 | } |
3016 | ||
3017 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
3018 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
3019 | struct device_attribute *attr, | |
3020 | char *buf) | |
3021 | { | |
3022 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
3023 | } | |
3024 | ||
5fb73bc2 BM |
3025 | static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, |
3026 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
a713b4d7 | 3027 | |
1d5a2b54 | 3028 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 3029 | { |
0d922e3b HMH |
3030 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3031 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
3032 | } |
3033 | ||
b790ceeb BN |
3034 | /* sysfs adaptive kbd mode --------------------------------------------- */ |
3035 | ||
3036 | static int adaptive_keyboard_get_mode(void); | |
3037 | static int adaptive_keyboard_set_mode(int new_mode); | |
3038 | ||
3039 | enum ADAPTIVE_KEY_MODE { | |
3040 | HOME_MODE, | |
3041 | WEB_BROWSER_MODE, | |
3042 | WEB_CONFERENCE_MODE, | |
3043 | FUNCTION_MODE, | |
3044 | LAYFLAT_MODE | |
3045 | }; | |
3046 | ||
3047 | static ssize_t adaptive_kbd_mode_show(struct device *dev, | |
3048 | struct device_attribute *attr, | |
3049 | char *buf) | |
3050 | { | |
abf9dc0d | 3051 | int current_mode; |
b790ceeb BN |
3052 | |
3053 | current_mode = adaptive_keyboard_get_mode(); | |
3054 | if (current_mode < 0) | |
3055 | return current_mode; | |
3056 | ||
3057 | return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); | |
3058 | } | |
3059 | ||
3060 | static ssize_t adaptive_kbd_mode_store(struct device *dev, | |
3061 | struct device_attribute *attr, | |
3062 | const char *buf, size_t count) | |
3063 | { | |
3064 | unsigned long t; | |
3065 | int res; | |
3066 | ||
3067 | if (parse_strtoul(buf, LAYFLAT_MODE, &t)) | |
3068 | return -EINVAL; | |
3069 | ||
3070 | res = adaptive_keyboard_set_mode(t); | |
3071 | return (res < 0) ? res : count; | |
3072 | } | |
3073 | ||
3074 | static DEVICE_ATTR_RW(adaptive_kbd_mode); | |
3075 | ||
3076 | static struct attribute *adaptive_kbd_attributes[] = { | |
3077 | &dev_attr_adaptive_kbd_mode.attr, | |
3078 | NULL | |
3079 | }; | |
3080 | ||
3081 | static const struct attribute_group adaptive_kbd_attr_group = { | |
3082 | .attrs = adaptive_kbd_attributes, | |
3083 | }; | |
3084 | ||
a0416420 HMH |
3085 | /* --------------------------------------------------------------------- */ |
3086 | ||
ff80f137 HMH |
3087 | static struct attribute *hotkey_attributes[] __initdata = { |
3088 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 3089 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 3090 | &dev_attr_hotkey_bios_mask.attr, |
5fb73bc2 BM |
3091 | &dev_attr_wakeup_reason.attr, |
3092 | &dev_attr_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
3093 | &dev_attr_hotkey_mask.attr, |
3094 | &dev_attr_hotkey_all_mask.attr, | |
0118c2d3 | 3095 | &dev_attr_hotkey_adaptive_all_mask.attr, |
01e88f25 | 3096 | &dev_attr_hotkey_recommended_mask.attr, |
0d922e3b | 3097 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3098 | &dev_attr_hotkey_source_mask.attr, |
3099 | &dev_attr_hotkey_poll_freq.attr, | |
3100 | #endif | |
ff80f137 HMH |
3101 | }; |
3102 | ||
19d337df JB |
3103 | /* |
3104 | * Sync both the hw and sw blocking state of all switches | |
3105 | */ | |
733e27c1 HMH |
3106 | static void tpacpi_send_radiosw_update(void) |
3107 | { | |
3108 | int wlsw; | |
3109 | ||
19d337df JB |
3110 | /* |
3111 | * We must sync all rfkill controllers *before* issuing any | |
3112 | * rfkill input events, or we will race the rfkill core input | |
3113 | * handler. | |
3114 | * | |
c8440336 | 3115 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
3116 | * for the above. |
3117 | * | |
3118 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
3119 | */ | |
3120 | ||
3121 | wlsw = hotkey_get_wlsw(); | |
3122 | ||
3123 | /* Sync hw blocking state first if it is hw-blocked */ | |
3124 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
3125 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 3126 | |
19d337df JB |
3127 | /* Sync sw blocking state */ |
3128 | tpacpi_rfk_update_swstate_all(); | |
3129 | ||
3130 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3131 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3132 | tpacpi_rfk_update_hwblock_state(false); | |
3133 | ||
3134 | /* Issue rfkill input event for WLSW switch */ | |
3135 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3136 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3137 | ||
3138 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3139 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3140 | input_sync(tpacpi_inputdev); |
3141 | ||
3142 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3143 | } | |
19d337df JB |
3144 | |
3145 | /* | |
3146 | * this can be unconditional, as we will poll state again | |
3147 | * if userspace uses the notify to read data | |
3148 | */ | |
733e27c1 HMH |
3149 | hotkey_radio_sw_notify_change(); |
3150 | } | |
3151 | ||
9c0a76e1 HMH |
3152 | static void hotkey_exit(void) |
3153 | { | |
3154 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3155 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3156 | hotkey_poll_stop_sync(); |
db25f16d | 3157 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3158 | #endif |
3159 | ||
3160 | if (hotkey_dev_attributes) | |
3161 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3162 | ||
4be73005 | 3163 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3164 | "restoring original HKEY status and mask\n"); |
3165 | /* yes, there is a bitwise or below, we want the | |
3166 | * functions to be called even if one of them fail */ | |
3167 | if (((tp_features.hotkey_mask && | |
3168 | hotkey_mask_set(hotkey_orig_mask)) | | |
3169 | hotkey_status_set(false)) != 0) | |
5cac62ac | 3170 | pr_err("failed to restore hot key mask to BIOS defaults\n"); |
9c0a76e1 HMH |
3171 | } |
3172 | ||
de4c8cc7 HMH |
3173 | static void __init hotkey_unmap(const unsigned int scancode) |
3174 | { | |
3175 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3176 | clear_bit(hotkey_keycode_map[scancode], | |
3177 | tpacpi_inputdev->keybit); | |
3178 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3179 | } | |
3180 | } | |
3181 | ||
0d922e3b HMH |
3182 | /* |
3183 | * HKEY quirks: | |
3184 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3185 | */ | |
3186 | ||
3187 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3188 | ||
3189 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3190 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3191 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3192 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3193 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3194 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3195 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3196 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3197 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3198 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3199 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3200 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3201 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3202 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3203 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3204 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3205 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3206 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3207 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3208 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3209 | }; | |
3210 | ||
fc6e7568 HMH |
3211 | typedef u16 tpacpi_keymap_entry_t; |
3212 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3213 | |
b3180028 L |
3214 | static int hotkey_init_tablet_mode(void) |
3215 | { | |
cb2bf251 DH |
3216 | int in_tablet_mode = 0, res; |
3217 | char *type = NULL; | |
b3180028 | 3218 | |
dda3ec0a BB |
3219 | if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) { |
3220 | int has_tablet_mode; | |
3221 | ||
3222 | in_tablet_mode = hotkey_gmms_get_tablet_mode(res, | |
3223 | &has_tablet_mode); | |
3224 | if (has_tablet_mode) | |
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 | ||
3439 | KEY_FAVORITES, /* Favorite app, 0x311 */ | |
3440 | KEY_RESERVED, /* Clipping tool */ | |
3441 | KEY_RESERVED, | |
3442 | KEY_BLUETOOTH, /* Bluetooth */ | |
3443 | KEY_KEYBOARD /* Keyboard, 0x315 */ | |
d1e14dca | 3444 | }, |
edf0e0e5 HMH |
3445 | }; |
3446 | ||
d1e14dca HMH |
3447 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3448 | /* Generic maps (fallback) */ | |
3449 | { | |
3450 | .vendor = PCI_VENDOR_ID_IBM, | |
3451 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3452 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3453 | }, | |
3454 | { | |
3455 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3456 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3457 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3458 | }, | |
3459 | }; | |
3460 | ||
3461 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3462 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3463 | |
6a38abbf | 3464 | int res, i; |
74941a69 | 3465 | int status; |
1b6521dc | 3466 | int hkeyv; |
d89a727a HMH |
3467 | bool radiosw_state = false; |
3468 | bool tabletsw_state = false; | |
b86c4722 | 3469 | |
0d922e3b | 3470 | unsigned long quirks; |
d1e14dca | 3471 | unsigned long keymap_id; |
0d922e3b | 3472 | |
56e2c200 HMH |
3473 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3474 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3475 | |
6a38abbf | 3476 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3477 | BUG_ON(tpacpi_inputdev->open != NULL || |
3478 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3479 | |
e0c7dfe7 | 3480 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3481 | mutex_init(&hotkey_mutex); |
5fba344c | 3482 | |
01e88f25 | 3483 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3484 | mutex_init(&hotkey_thread_data_mutex); |
3485 | #endif | |
3486 | ||
56b6aeb0 | 3487 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3488 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3489 | |
56e2c200 HMH |
3490 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3491 | "hotkeys are %s\n", | |
d8fd94d9 | 3492 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3493 | |
9c0a76e1 HMH |
3494 | if (!tp_features.hotkey) |
3495 | return 1; | |
a0416420 | 3496 | |
0d922e3b HMH |
3497 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3498 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3499 | ||
d64c81c4 HMH |
3500 | tpacpi_disable_brightness_delay(); |
3501 | ||
0d922e3b HMH |
3502 | /* MUST have enough space for all attributes to be added to |
3503 | * hotkey_dev_attributes */ | |
3504 | hotkey_dev_attributes = create_attr_set( | |
3505 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3506 | NULL); | |
9c0a76e1 HMH |
3507 | if (!hotkey_dev_attributes) |
3508 | return -ENOMEM; | |
3509 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3510 | hotkey_attributes, | |
3511 | ARRAY_SIZE(hotkey_attributes)); | |
3512 | if (res) | |
3513 | goto err_exit; | |
3514 | ||
0d922e3b | 3515 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3516 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3517 | for HKEY interface version 0x100 */ | |
3518 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
0118c2d3 DW |
3519 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3520 | "firmware HKEY interface version: 0x%x\n", | |
3521 | hkeyv); | |
3522 | ||
3523 | switch (hkeyv >> 8) { | |
3524 | case 1: | |
9c0a76e1 HMH |
3525 | /* |
3526 | * MHKV 0x100 in A31, R40, R40e, | |
3527 | * T4x, X31, and later | |
3528 | */ | |
0d922e3b HMH |
3529 | |
3530 | /* Paranoia check AND init hotkey_all_mask */ | |
3531 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3532 | "MHKA", "qd")) { | |
0118c2d3 DW |
3533 | pr_err("missing MHKA handler, please report this to %s\n", |
3534 | TPACPI_MAIL); | |
3535 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3536 | hotkey_all_mask = 0x080cU; | |
3537 | } else { | |
3538 | tp_features.hotkey_mask = 1; | |
3539 | } | |
3540 | break; | |
3541 | ||
3542 | case 2: | |
3543 | /* | |
3544 | * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) | |
3545 | */ | |
3546 | ||
3547 | /* Paranoia check AND init hotkey_all_mask */ | |
3548 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3549 | "MHKA", "dd", 1)) { | |
3550 | pr_err("missing MHKA handler, please report this to %s\n", | |
0d922e3b HMH |
3551 | TPACPI_MAIL); |
3552 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3553 | hotkey_all_mask = 0x080cU; | |
3554 | } else { | |
3555 | tp_features.hotkey_mask = 1; | |
3556 | } | |
0118c2d3 DW |
3557 | |
3558 | /* | |
3559 | * Check if we have an adaptive keyboard, like on the | |
3560 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3561 | */ | |
3562 | if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, | |
3563 | "MHKA", "dd", 2)) { | |
3564 | if (hotkey_adaptive_all_mask != 0) { | |
3565 | tp_features.has_adaptive_kbd = true; | |
3566 | res = sysfs_create_group( | |
3567 | &tpacpi_pdev->dev.kobj, | |
3568 | &adaptive_kbd_attr_group); | |
3569 | if (res) | |
3570 | goto err_exit; | |
3571 | } | |
3572 | } else { | |
3573 | tp_features.has_adaptive_kbd = false; | |
3574 | hotkey_adaptive_all_mask = 0x0U; | |
3575 | } | |
3576 | break; | |
3577 | ||
3578 | default: | |
3579 | pr_err("unknown version of the HKEY interface: 0x%x\n", | |
3580 | hkeyv); | |
3581 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
3582 | break; | |
1b6521dc | 3583 | } |
9c0a76e1 | 3584 | } |
56b6aeb0 | 3585 | |
56e2c200 HMH |
3586 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3587 | "hotkey masks are %s\n", | |
9c0a76e1 | 3588 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3589 | |
0d922e3b HMH |
3590 | /* Init hotkey_all_mask if not initialized yet */ |
3591 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3592 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3593 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3594 | |
0d922e3b | 3595 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3596 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3597 | /* hotkey_source_mask *must* be zero for |
3598 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3599 | res = hotkey_mask_get(); |
3600 | if (res) | |
3601 | goto err_exit; | |
3602 | ||
0d922e3b HMH |
3603 | hotkey_orig_mask = hotkey_acpi_mask; |
3604 | } else { | |
3605 | hotkey_orig_mask = hotkey_all_mask; | |
3606 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3607 | } |
74941a69 | 3608 | |
a73f3091 HMH |
3609 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3610 | if (dbg_wlswemul) { | |
3611 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3612 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3613 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3614 | } else |
3615 | #endif | |
9c0a76e1 HMH |
3616 | /* Not all thinkpads have a hardware radio switch */ |
3617 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3618 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3619 | radiosw_state = !!status; |
0978e012 | 3620 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3621 | enabled(status, 0)); |
3a872080 HMH |
3622 | } |
3623 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3624 | res = add_to_attr_set(hotkey_dev_attributes, |
3625 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3626 | |
b3180028 L |
3627 | res = hotkey_init_tablet_mode(); |
3628 | if (res < 0) | |
3629 | goto err_exit; | |
3630 | ||
3631 | tabletsw_state = res; | |
6c231bd5 | 3632 | |
b3180028 L |
3633 | res = register_attr_set_with_sysfs(hotkey_dev_attributes, |
3634 | &tpacpi_pdev->dev.kobj); | |
9c0a76e1 HMH |
3635 | if (res) |
3636 | goto err_exit; | |
6a38abbf | 3637 | |
9c0a76e1 | 3638 | /* Set up key map */ |
9c0a76e1 HMH |
3639 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3640 | GFP_KERNEL); | |
3641 | if (!hotkey_keycode_map) { | |
0978e012 | 3642 | pr_err("failed to allocate memory for key map\n"); |
9c0a76e1 HMH |
3643 | res = -ENOMEM; |
3644 | goto err_exit; | |
3645 | } | |
edf0e0e5 | 3646 | |
d1e14dca HMH |
3647 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3648 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3649 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3650 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3651 | "using keymap number %lu\n", keymap_id); | |
3652 | ||
3653 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3654 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3655 | |
792979c8 | 3656 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3657 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3658 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3659 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3660 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3661 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3662 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3663 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3664 | } else { |
3665 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3666 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3667 | } |
9c0a76e1 | 3668 | } |
6a38abbf | 3669 | |
9c0a76e1 | 3670 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3671 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3672 | input_report_switch(tpacpi_inputdev, |
3673 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3674 | } |
3675 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3676 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3677 | input_report_switch(tpacpi_inputdev, |
3678 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3679 | } |
5c29d58f | 3680 | |
9c0a76e1 | 3681 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3682 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3683 | * been called before this point */ | |
b33c6ce5 | 3684 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
5cac62ac AS |
3685 | pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n"); |
3686 | pr_notice("Disabling thinkpad-acpi brightness events by default...\n"); | |
9c0a76e1 | 3687 | |
de4c8cc7 HMH |
3688 | /* Disable brightness up/down on Lenovo thinkpads when |
3689 | * ACPI is handling them, otherwise it is plain impossible | |
3690 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3691 | hotkey_reserved_mask |= |
3692 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3693 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3694 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3695 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3696 | } |
ff80f137 | 3697 | |
230d8cf2 | 3698 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3699 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3700 | & ~hotkey_all_mask | |
3701 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3702 | |
3703 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3704 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3705 | hotkey_source_mask, hotkey_poll_freq); | |
3706 | #endif | |
3707 | ||
56e2c200 HMH |
3708 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3709 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3710 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3711 | if (res) { |
3712 | hotkey_exit(); | |
3713 | return res; | |
3714 | } | |
0d922e3b HMH |
3715 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3716 | | hotkey_driver_mask) | |
3717 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3718 | if (res < 0 && res != -ENXIO) { |
3719 | hotkey_exit(); | |
3720 | return res; | |
3721 | } | |
0d922e3b HMH |
3722 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3723 | & ~hotkey_reserved_mask; | |
3724 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3725 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3726 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3727 | |
9c0a76e1 HMH |
3728 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3729 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3730 | |
db25f16d | 3731 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3732 | |
9c0a76e1 | 3733 | return 0; |
01e88f25 | 3734 | |
9c0a76e1 HMH |
3735 | err_exit: |
3736 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3737 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3738 | &adaptive_kbd_attr_group); | |
3739 | ||
9c0a76e1 | 3740 | hotkey_dev_attributes = NULL; |
a0416420 | 3741 | |
72a979f0 | 3742 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3743 | } |
3744 | ||
3a9d20bd SS |
3745 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3746 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3747 | * We support Home mode and Function mode currently. | |
3748 | * | |
3749 | * Will consider support rest of modes in future. | |
3750 | * | |
3751 | */ | |
b201a47f | 3752 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3753 | HOME_MODE, |
3754 | /* WEB_BROWSER_MODE = 2, | |
3755 | WEB_CONFERENCE_MODE = 3, */ | |
3756 | FUNCTION_MODE | |
3757 | }; | |
3758 | ||
3759 | #define DFR_CHANGE_ROW 0x101 | |
3760 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 | 3761 | #define FIRST_ADAPTIVE_KEY 0x103 |
3a9d20bd SS |
3762 | |
3763 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3764 | * release Fn key, previous mode be restored. | |
3765 | */ | |
3766 | static bool adaptive_keyboard_mode_is_saved; | |
3767 | static int adaptive_keyboard_prev_mode; | |
3768 | ||
f74587fb BN |
3769 | static int adaptive_keyboard_get_mode(void) |
3770 | { | |
3771 | int mode = 0; | |
3772 | ||
3773 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3774 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3775 | return -EIO; | |
3776 | } | |
3777 | ||
3778 | return mode; | |
3779 | } | |
3780 | ||
3781 | static int adaptive_keyboard_set_mode(int new_mode) | |
3782 | { | |
3783 | if (new_mode < 0 || | |
3784 | new_mode > LAYFLAT_MODE) | |
3785 | return -EINVAL; | |
3786 | ||
3787 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3788 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3789 | return -EIO; | |
3790 | } | |
3791 | ||
3792 | return 0; | |
3793 | } | |
3794 | ||
3a9d20bd SS |
3795 | static int adaptive_keyboard_get_next_mode(int mode) |
3796 | { | |
3797 | size_t i; | |
3798 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3799 | ||
3800 | for (i = 0; i <= max_mode; i++) { | |
3801 | if (adaptive_keyboard_modes[i] == mode) | |
3802 | break; | |
3803 | } | |
3804 | ||
3805 | if (i >= max_mode) | |
3806 | i = 0; | |
3807 | else | |
3808 | i++; | |
3809 | ||
3810 | return adaptive_keyboard_modes[i]; | |
3811 | } | |
3812 | ||
3813 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3814 | { | |
abf9dc0d | 3815 | int current_mode = 0; |
3a9d20bd | 3816 | int new_mode = 0; |
6a68d855 | 3817 | int keycode; |
3a9d20bd SS |
3818 | |
3819 | switch (scancode) { | |
3820 | case DFR_CHANGE_ROW: | |
3821 | if (adaptive_keyboard_mode_is_saved) { | |
3822 | new_mode = adaptive_keyboard_prev_mode; | |
3823 | adaptive_keyboard_mode_is_saved = false; | |
3824 | } else { | |
f74587fb BN |
3825 | current_mode = adaptive_keyboard_get_mode(); |
3826 | if (current_mode < 0) | |
3a9d20bd | 3827 | return false; |
f74587fb BN |
3828 | new_mode = adaptive_keyboard_get_next_mode( |
3829 | current_mode); | |
3a9d20bd SS |
3830 | } |
3831 | ||
f74587fb | 3832 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3833 | return false; |
3a9d20bd SS |
3834 | |
3835 | return true; | |
3836 | ||
3837 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3838 | current_mode = adaptive_keyboard_get_mode(); |
3839 | if (current_mode < 0) | |
3a9d20bd | 3840 | return false; |
3a9d20bd | 3841 | |
f74587fb BN |
3842 | adaptive_keyboard_prev_mode = current_mode; |
3843 | adaptive_keyboard_mode_is_saved = true; | |
3844 | ||
3845 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3846 | return false; | |
3a9d20bd SS |
3847 | return true; |
3848 | ||
3849 | default: | |
741d98c7 | 3850 | if (scancode < FIRST_ADAPTIVE_KEY || |
696c6523 CK |
3851 | scancode >= FIRST_ADAPTIVE_KEY + |
3852 | TP_ACPI_HOTKEYSCAN_EXTENDED_START - | |
3853 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
6a68d855 | 3854 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
5cac62ac | 3855 | scancode); |
6a68d855 BN |
3856 | return false; |
3857 | } | |
149c8c75 CK |
3858 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + |
3859 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START]; | |
6a68d855 BN |
3860 | if (keycode != KEY_RESERVED) { |
3861 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3862 | ||
3863 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3864 | input_sync(tpacpi_inputdev); | |
3865 | ||
3866 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3867 | input_sync(tpacpi_inputdev); | |
3868 | ||
3869 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3870 | } | |
3871 | return true; | |
3a9d20bd SS |
3872 | } |
3873 | } | |
3874 | ||
3827e7a3 HMH |
3875 | static bool hotkey_notify_hotkey(const u32 hkey, |
3876 | bool *send_acpi_ev, | |
3877 | bool *ignore_acpi_ev) | |
3878 | { | |
3879 | /* 0x1000-0x1FFF: key presses */ | |
3880 | unsigned int scancode = hkey & 0xfff; | |
3881 | *send_acpi_ev = true; | |
3882 | *ignore_acpi_ev = false; | |
3883 | ||
696c6523 CK |
3884 | /* |
3885 | * Original events are in the 0x10XX range, the adaptive keyboard | |
3886 | * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017 | |
3887 | * models, additional keys are emitted through 0x13XX. | |
3888 | */ | |
3889 | switch ((hkey >> 8) & 0xf) { | |
3890 | case 0: | |
3891 | if (scancode > 0 && | |
3892 | scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
3893 | /* HKEY event 0x1001 is scancode 0x00 */ | |
3894 | scancode--; | |
3895 | if (!(hotkey_source_mask & (1 << scancode))) { | |
3896 | tpacpi_input_send_key_masked(scancode); | |
3897 | *send_acpi_ev = false; | |
3898 | } else { | |
3899 | *ignore_acpi_ev = true; | |
3900 | } | |
3901 | return true; | |
3827e7a3 | 3902 | } |
696c6523 CK |
3903 | break; |
3904 | ||
3905 | case 1: | |
3a9d20bd | 3906 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); |
696c6523 CK |
3907 | |
3908 | case 3: | |
3909 | /* Extended keycodes start at 0x300 and our offset into the map | |
3910 | * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode | |
3911 | * will be positive, but might not be in the correct range. | |
3912 | */ | |
3913 | scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START); | |
3914 | if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START && | |
3915 | scancode < TPACPI_HOTKEY_MAP_LEN) { | |
3916 | tpacpi_input_send_key(scancode); | |
3917 | return true; | |
3918 | } | |
3919 | break; | |
3827e7a3 | 3920 | } |
696c6523 | 3921 | |
3827e7a3 HMH |
3922 | return false; |
3923 | } | |
3924 | ||
3925 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3926 | bool *send_acpi_ev, | |
3927 | bool *ignore_acpi_ev) | |
3928 | { | |
3929 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3930 | *send_acpi_ev = true; | |
3931 | *ignore_acpi_ev = false; | |
3932 | ||
3933 | switch (hkey) { | |
67bcae6e HMH |
3934 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3935 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3936 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3937 | *ignore_acpi_ev = true; | |
3938 | break; | |
3939 | ||
67bcae6e HMH |
3940 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3941 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3942 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3943 | *ignore_acpi_ev = true; | |
3944 | break; | |
3945 | ||
67bcae6e HMH |
3946 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3947 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3948 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3949 | /* how to auto-heal: */ |
3950 | /* 2313: woke up from S3, go to S4/S5 */ | |
3951 | /* 2413: woke up from S4, go to S5 */ | |
3952 | break; | |
3953 | ||
3827e7a3 HMH |
3954 | default: |
3955 | return false; | |
3956 | } | |
3957 | ||
3958 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3959 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3960 | hotkey_wakeup_reason_notify_change(); |
3961 | } | |
3962 | return true; | |
3963 | } | |
3964 | ||
a50245af HMH |
3965 | static bool hotkey_notify_dockevent(const u32 hkey, |
3966 | bool *send_acpi_ev, | |
3967 | bool *ignore_acpi_ev) | |
3968 | { | |
3969 | /* 0x4000-0x4FFF: dock-related events */ | |
3970 | *send_acpi_ev = true; | |
3971 | *ignore_acpi_ev = false; | |
3972 | ||
3973 | switch (hkey) { | |
3974 | case TP_HKEY_EV_UNDOCK_ACK: | |
3975 | /* ACPI undock operation completed after wakeup */ | |
3976 | hotkey_autosleep_ack = 1; | |
3977 | pr_info("undocked\n"); | |
3978 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3979 | return true; | |
3980 | ||
3981 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3982 | pr_info("docked into hotplug port replicator\n"); | |
3983 | return true; | |
3984 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3985 | pr_info("undocked from hotplug port replicator\n"); | |
3986 | return true; | |
3987 | ||
3988 | default: | |
3989 | return false; | |
3990 | } | |
3991 | } | |
3992 | ||
3827e7a3 HMH |
3993 | static bool hotkey_notify_usrevent(const u32 hkey, |
3994 | bool *send_acpi_ev, | |
3995 | bool *ignore_acpi_ev) | |
3996 | { | |
3997 | /* 0x5000-0x5FFF: human interface helpers */ | |
3998 | *send_acpi_ev = true; | |
3999 | *ignore_acpi_ev = false; | |
4000 | ||
4001 | switch (hkey) { | |
67bcae6e HMH |
4002 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
4003 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
4004 | return true; |
4005 | ||
67bcae6e HMH |
4006 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
4007 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
4008 | tpacpi_input_send_tabletsw(); |
4009 | hotkey_tablet_mode_notify_change(); | |
4010 | *send_acpi_ev = false; | |
4011 | return true; | |
4012 | ||
67bcae6e HMH |
4013 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
4014 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
4015 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 4016 | /* do not propagate these events */ |
3827e7a3 HMH |
4017 | *ignore_acpi_ev = true; |
4018 | return true; | |
4019 | ||
4020 | default: | |
4021 | return false; | |
4022 | } | |
4023 | } | |
4024 | ||
9ebd9e83 HMH |
4025 | static void thermal_dump_all_sensors(void); |
4026 | ||
2d43f671 | 4027 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
4028 | bool *send_acpi_ev, |
4029 | bool *ignore_acpi_ev) | |
4030 | { | |
9ebd9e83 HMH |
4031 | bool known = true; |
4032 | ||
2d43f671 | 4033 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
4034 | *send_acpi_ev = true; |
4035 | *ignore_acpi_ev = false; | |
4036 | ||
4037 | switch (hkey) { | |
9ebd9e83 | 4038 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
0978e012 | 4039 | pr_info("EC reports that Thermal Table has changed\n"); |
9ebd9e83 HMH |
4040 | /* recommended action: do nothing, we don't have |
4041 | * Lenovo ATM information */ | |
4042 | return true; | |
67bcae6e | 4043 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 4044 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 4045 | /* recommended action: warn user through gui */ |
9ebd9e83 | 4046 | break; |
67bcae6e | 4047 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 4048 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 4049 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4050 | break; |
67bcae6e | 4051 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
5cac62ac | 4052 | pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n"); |
106b4e66 HMH |
4053 | /* recommended action: warn user through gui, that */ |
4054 | /* some internal component is too hot */ | |
9ebd9e83 | 4055 | break; |
67bcae6e | 4056 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
5cac62ac | 4057 | pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n"); |
106b4e66 | 4058 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4059 | break; |
6f62bc3e RH |
4060 | case TP_HKEY_EV_AC_CHANGED: |
4061 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
4062 | * AC status changed; can be triggered by plugging or | |
4063 | * unplugging AC adapter, docking or undocking. */ | |
4064 | ||
4065 | /* fallthrough */ | |
2d43f671 HMH |
4066 | |
4067 | case TP_HKEY_EV_KEY_NUMLOCK: | |
4068 | case TP_HKEY_EV_KEY_FN: | |
67ab6248 | 4069 | case TP_HKEY_EV_KEY_FN_ESC: |
2d43f671 HMH |
4070 | /* key press events, we just ignore them as long as the EC |
4071 | * is still reporting them in the normal keyboard stream */ | |
4072 | *send_acpi_ev = false; | |
4073 | *ignore_acpi_ev = true; | |
4074 | return true; | |
4075 | ||
b03f4d49 L |
4076 | case TP_HKEY_EV_TABLET_CHANGED: |
4077 | tpacpi_input_send_tabletsw(); | |
4078 | hotkey_tablet_mode_notify_change(); | |
4079 | *send_acpi_ev = false; | |
4080 | break; | |
4081 | ||
106b4e66 | 4082 | default: |
2d43f671 | 4083 | pr_warn("unknown possible thermal alarm or keyboard event received\n"); |
9ebd9e83 | 4084 | known = false; |
106b4e66 | 4085 | } |
9ebd9e83 HMH |
4086 | |
4087 | thermal_dump_all_sensors(); | |
4088 | ||
4089 | return known; | |
106b4e66 HMH |
4090 | } |
4091 | ||
56b6aeb0 HMH |
4092 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
4093 | { | |
6a38abbf | 4094 | u32 hkey; |
3827e7a3 HMH |
4095 | bool send_acpi_ev; |
4096 | bool ignore_acpi_ev; | |
4097 | bool known_ev; | |
3eea123d HMH |
4098 | |
4099 | if (event != 0x80) { | |
0978e012 | 4100 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 4101 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
4102 | acpi_bus_generate_netlink_event( |
4103 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4104 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4105 | event, 0); |
3eea123d HMH |
4106 | return; |
4107 | } | |
4108 | ||
4109 | while (1) { | |
4110 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 4111 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
4112 | return; |
4113 | } | |
4114 | ||
4115 | if (hkey == 0) { | |
4116 | /* queue empty */ | |
4117 | return; | |
4118 | } | |
4119 | ||
3827e7a3 HMH |
4120 | send_acpi_ev = true; |
4121 | ignore_acpi_ev = false; | |
56b6aeb0 | 4122 | |
ff80f137 HMH |
4123 | switch (hkey >> 12) { |
4124 | case 1: | |
4125 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
4126 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
4127 | &ignore_acpi_ev); | |
ff80f137 | 4128 | break; |
a713b4d7 | 4129 | case 2: |
3827e7a3 HMH |
4130 | /* 0x2000-0x2FFF: Wakeup reason */ |
4131 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
4132 | &ignore_acpi_ev); | |
a713b4d7 HMH |
4133 | break; |
4134 | case 3: | |
3827e7a3 | 4135 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
4136 | switch (hkey) { |
4137 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 4138 | hotkey_autosleep_ack = 1; |
0978e012 | 4139 | pr_info("bay ejected\n"); |
50ebec09 | 4140 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 4141 | known_ev = true; |
bf8b29c8 HMH |
4142 | break; |
4143 | case TP_HKEY_EV_OPTDRV_EJ: | |
4144 | /* FIXME: kick libata if SATA link offline */ | |
4145 | known_ev = true; | |
4146 | break; | |
4147 | default: | |
3827e7a3 | 4148 | known_ev = false; |
a713b4d7 HMH |
4149 | } |
4150 | break; | |
4151 | case 4: | |
a50245af HMH |
4152 | /* 0x4000-0x4FFF: dock-related events */ |
4153 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
4154 | &ignore_acpi_ev); | |
a713b4d7 | 4155 | break; |
ff80f137 | 4156 | case 5: |
d1edb2b5 | 4157 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
4158 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
4159 | &ignore_acpi_ev); | |
ff80f137 | 4160 | break; |
106b4e66 | 4161 | case 6: |
2d43f671 HMH |
4162 | /* 0x6000-0x6FFF: thermal alarms/notices and |
4163 | * keyboard events */ | |
4164 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
4165 | &ignore_acpi_ev); |
4166 | break; | |
ff80f137 HMH |
4167 | case 7: |
4168 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
4169 | if (tp_features.hotkey_wlsw && |
4170 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 4171 | tpacpi_send_radiosw_update(); |
3b64b51d | 4172 | send_acpi_ev = 0; |
3827e7a3 | 4173 | known_ev = true; |
6a38abbf | 4174 | break; |
6a38abbf | 4175 | } |
ff80f137 HMH |
4176 | /* fallthrough to default */ |
4177 | default: | |
3827e7a3 | 4178 | known_ev = false; |
3b64b51d | 4179 | } |
3827e7a3 | 4180 | if (!known_ev) { |
0978e012 | 4181 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
5cac62ac AS |
4182 | pr_notice("please report the conditions when this event happened to %s\n", |
4183 | TPACPI_MAIL); | |
6a38abbf | 4184 | } |
ff80f137 | 4185 | |
3eea123d | 4186 | /* netlink events */ |
3e5ce914 | 4187 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
4188 | acpi_bus_generate_netlink_event( |
4189 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4190 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4191 | event, hkey); |
3eea123d | 4192 | } |
56b6aeb0 HMH |
4193 | } |
4194 | } | |
4195 | ||
fd3c3a42 | 4196 | static void hotkey_suspend(void) |
a713b4d7 HMH |
4197 | { |
4198 | /* Do these on suspend, we get the events on early resume! */ | |
4199 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
4200 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
4201 | |
4202 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4203 | if (tp_features.has_adaptive_kbd) { |
4204 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
4205 | "GTRW", "dd", 0)) { | |
4206 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
4207 | } |
4208 | } | |
a713b4d7 HMH |
4209 | } |
4210 | ||
5c29d58f HMH |
4211 | static void hotkey_resume(void) |
4212 | { | |
d64c81c4 HMH |
4213 | tpacpi_disable_brightness_delay(); |
4214 | ||
0d922e3b HMH |
4215 | if (hotkey_status_set(true) < 0 || |
4216 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
5cac62ac | 4217 | pr_err("error while attempting to reset the event firmware interface\n"); |
0d922e3b | 4218 | |
733e27c1 | 4219 | tpacpi_send_radiosw_update(); |
6c231bd5 | 4220 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4221 | hotkey_wakeup_reason_notify_change(); |
4222 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4223 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4224 | |
4225 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4226 | if (tp_features.has_adaptive_kbd) { |
4227 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4228 | adaptive_keyboard_prev_mode)) { | |
4229 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4230 | } |
4231 | } | |
5c29d58f HMH |
4232 | } |
4233 | ||
a0416420 | 4234 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4235 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4236 | { |
ae92bd17 | 4237 | int res, status; |
1da177e4 | 4238 | |
d8fd94d9 | 4239 | if (!tp_features.hotkey) { |
887965e6 AD |
4240 | seq_printf(m, "status:\t\tnot supported\n"); |
4241 | return 0; | |
78f81cc4 BD |
4242 | } |
4243 | ||
7646ea88 | 4244 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4245 | return -ERESTARTSYS; |
b2c985e7 HMH |
4246 | res = hotkey_status_get(&status); |
4247 | if (!res) | |
4248 | res = hotkey_mask_get(); | |
40ca9fdf | 4249 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4250 | if (res) |
4251 | return res; | |
1da177e4 | 4252 | |
887965e6 | 4253 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4254 | if (hotkey_all_mask) { |
887965e6 AD |
4255 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4256 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4257 | } else { |
887965e6 AD |
4258 | seq_printf(m, "mask:\t\tnot supported\n"); |
4259 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4260 | } |
4261 | ||
887965e6 | 4262 | return 0; |
1da177e4 LT |
4263 | } |
4264 | ||
406e988b | 4265 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4266 | { |
4267 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4268 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
5cac62ac AS |
4269 | pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n"))) |
4270 | pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4271 | } |
4272 | ||
78f81cc4 | 4273 | static int hotkey_write(char *buf) |
1da177e4 | 4274 | { |
2586d566 | 4275 | int res; |
ae92bd17 | 4276 | u32 mask; |
1da177e4 | 4277 | char *cmd; |
1da177e4 | 4278 | |
d8fd94d9 | 4279 | if (!tp_features.hotkey) |
1da177e4 LT |
4280 | return -ENODEV; |
4281 | ||
7646ea88 | 4282 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4283 | return -ERESTARTSYS; |
40ca9fdf | 4284 | |
0d922e3b | 4285 | mask = hotkey_user_mask; |
78f81cc4 | 4286 | |
40ca9fdf | 4287 | res = 0; |
1da177e4 LT |
4288 | while ((cmd = next_cmd(&buf))) { |
4289 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 4290 | hotkey_enabledisable_warn(1); |
1da177e4 | 4291 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4292 | hotkey_enabledisable_warn(0); |
2586d566 | 4293 | res = -EPERM; |
1da177e4 | 4294 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4295 | mask = (hotkey_all_mask | hotkey_source_mask) |
4296 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4297 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4298 | /* mask set */ | |
4299 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4300 | /* mask set */ | |
40ca9fdf HMH |
4301 | } else { |
4302 | res = -EINVAL; | |
4303 | goto errexit; | |
4304 | } | |
1da177e4 | 4305 | } |
56e2c200 | 4306 | |
0d922e3b | 4307 | if (!res) { |
56e2c200 HMH |
4308 | tpacpi_disclose_usertask("procfs hotkey", |
4309 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4310 | res = hotkey_user_mask_set(mask); |
4311 | } | |
1da177e4 | 4312 | |
40ca9fdf HMH |
4313 | errexit: |
4314 | mutex_unlock(&hotkey_mutex); | |
4315 | return res; | |
78f81cc4 | 4316 | } |
1da177e4 | 4317 | |
1ba90e3a | 4318 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4319 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4320 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
a3c42a46 | 4321 | {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, |
1ba90e3a TR |
4322 | {"", 0}, |
4323 | }; | |
4324 | ||
8d376cd6 | 4325 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4326 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4327 | .notify = hotkey_notify, |
4328 | .handle = &hkey_handle, | |
4329 | .type = ACPI_DEVICE_NOTIFY, | |
4330 | }; | |
4331 | ||
a5763f22 HMH |
4332 | static struct ibm_struct hotkey_driver_data = { |
4333 | .name = "hotkey", | |
a5763f22 HMH |
4334 | .read = hotkey_read, |
4335 | .write = hotkey_write, | |
4336 | .exit = hotkey_exit, | |
5c29d58f | 4337 | .resume = hotkey_resume, |
a713b4d7 | 4338 | .suspend = hotkey_suspend, |
8d376cd6 | 4339 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4340 | }; |
4341 | ||
56b6aeb0 HMH |
4342 | /************************************************************************* |
4343 | * Bluetooth subdriver | |
4344 | */ | |
1da177e4 | 4345 | |
f74a27d4 HMH |
4346 | enum { |
4347 | /* ACPI GBDC/SBDC bits */ | |
4348 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4349 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4350 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4351 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4352 | }; |
4353 | ||
4354 | enum { | |
4355 | /* ACPI \BLTH commands */ | |
4356 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4357 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4358 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4359 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4360 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4361 | }; |
4362 | ||
bee4cd9b HMH |
4363 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4364 | ||
19d337df | 4365 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4366 | { |
4367 | int status; | |
4368 | ||
a73f3091 HMH |
4369 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4370 | if (dbg_bluetoothemul) | |
4371 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4372 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4373 | #endif |
4374 | ||
07431ec8 HMH |
4375 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4376 | return -EIO; | |
4377 | ||
0e74dc26 | 4378 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4379 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4380 | } |
4381 | ||
19d337df | 4382 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4383 | { |
4384 | int status; | |
4385 | ||
bee4cd9b | 4386 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4387 | "will attempt to %s bluetooth\n", |
4388 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4389 | |
a73f3091 HMH |
4390 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4391 | if (dbg_bluetoothemul) { | |
19d337df | 4392 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4393 | return 0; |
4394 | } | |
4395 | #endif | |
4396 | ||
19d337df | 4397 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4398 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4399 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4400 | else | |
4401 | status = 0; | |
19d337df | 4402 | |
07431ec8 HMH |
4403 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4404 | return -EIO; | |
4405 | ||
4406 | return 0; | |
4407 | } | |
f74a27d4 | 4408 | |
d3a6ade4 HMH |
4409 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4410 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4411 | struct device_attribute *attr, | |
4412 | char *buf) | |
4413 | { | |
19d337df JB |
4414 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4415 | attr, buf); | |
d3a6ade4 HMH |
4416 | } |
4417 | ||
4418 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4419 | struct device_attribute *attr, | |
4420 | const char *buf, size_t count) | |
4421 | { | |
19d337df JB |
4422 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4423 | attr, buf, count); | |
d3a6ade4 HMH |
4424 | } |
4425 | ||
b4dd04ac | 4426 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4427 | |
4428 | /* --------------------------------------------------------------------- */ | |
4429 | ||
4430 | static struct attribute *bluetooth_attributes[] = { | |
4431 | &dev_attr_bluetooth_enable.attr, | |
4432 | NULL | |
4433 | }; | |
4434 | ||
4435 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4436 | .attrs = bluetooth_attributes, |
4437 | }; | |
4438 | ||
19d337df JB |
4439 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4440 | .get_status = bluetooth_get_status, | |
4441 | .set_status = bluetooth_set_status, | |
4442 | }; | |
0e74dc26 | 4443 | |
90d9d3c7 HMH |
4444 | static void bluetooth_shutdown(void) |
4445 | { | |
4446 | /* Order firmware to save current state to NVRAM */ | |
4447 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4448 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4449 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4450 | else |
4451 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4452 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4453 | } |
4454 | ||
07431ec8 HMH |
4455 | static void bluetooth_exit(void) |
4456 | { | |
4457 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4458 | &bluetooth_attr_group); | |
19d337df JB |
4459 | |
4460 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4461 | ||
4462 | bluetooth_shutdown(); | |
07431ec8 HMH |
4463 | } |
4464 | ||
a5763f22 | 4465 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4466 | { |
d3a6ade4 | 4467 | int res; |
d6fdd1e9 HMH |
4468 | int status = 0; |
4469 | ||
bee4cd9b HMH |
4470 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4471 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4472 | |
e0c7dfe7 | 4473 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4474 | |
78f81cc4 BD |
4475 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4476 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4477 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4478 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4479 | ||
bee4cd9b HMH |
4480 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4481 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4482 | str_supported(tp_features.bluetooth), |
4483 | status); | |
4484 | ||
a73f3091 HMH |
4485 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4486 | if (dbg_bluetoothemul) { | |
4487 | tp_features.bluetooth = 1; | |
0978e012 | 4488 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4489 | } else |
4490 | #endif | |
3a872080 HMH |
4491 | if (tp_features.bluetooth && |
4492 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4493 | /* no bluetooth hardware present in system */ | |
4494 | tp_features.bluetooth = 0; | |
bee4cd9b | 4495 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4496 | "bluetooth hardware not installed\n"); |
4497 | } | |
4498 | ||
0e74dc26 HMH |
4499 | if (!tp_features.bluetooth) |
4500 | return 1; | |
4501 | ||
0e74dc26 | 4502 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4503 | &bluetooth_tprfk_ops, |
0e74dc26 | 4504 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4505 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4506 | true); |
4507 | if (res) | |
4508 | return res; | |
4509 | ||
4510 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4511 | &bluetooth_attr_group); | |
0e74dc26 | 4512 | if (res) { |
19d337df | 4513 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4514 | return res; |
d6fdd1e9 | 4515 | } |
fe08bc4b | 4516 | |
0e74dc26 | 4517 | return 0; |
1da177e4 LT |
4518 | } |
4519 | ||
d3a6ade4 | 4520 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4521 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4522 | { |
887965e6 | 4523 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4524 | } |
4525 | ||
78f81cc4 | 4526 | static int bluetooth_write(char *buf) |
1da177e4 | 4527 | { |
19d337df | 4528 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4529 | } |
4530 | ||
a5763f22 HMH |
4531 | static struct ibm_struct bluetooth_driver_data = { |
4532 | .name = "bluetooth", | |
4533 | .read = bluetooth_read, | |
4534 | .write = bluetooth_write, | |
d3a6ade4 | 4535 | .exit = bluetooth_exit, |
90d9d3c7 | 4536 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4537 | }; |
4538 | ||
56b6aeb0 HMH |
4539 | /************************************************************************* |
4540 | * Wan subdriver | |
4541 | */ | |
4542 | ||
f74a27d4 HMH |
4543 | enum { |
4544 | /* ACPI GWAN/SWAN bits */ | |
4545 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4546 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4547 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4548 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4549 | }; |
4550 | ||
bee4cd9b HMH |
4551 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4552 | ||
19d337df | 4553 | static int wan_get_status(void) |
07431ec8 HMH |
4554 | { |
4555 | int status; | |
4556 | ||
a73f3091 HMH |
4557 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4558 | if (dbg_wwanemul) | |
4559 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4560 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4561 | #endif |
4562 | ||
07431ec8 HMH |
4563 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4564 | return -EIO; | |
4565 | ||
0e74dc26 | 4566 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4567 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4568 | } |
4569 | ||
19d337df | 4570 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4571 | { |
4572 | int status; | |
4573 | ||
bee4cd9b | 4574 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4575 | "will attempt to %s wwan\n", |
4576 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4577 | |
a73f3091 HMH |
4578 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4579 | if (dbg_wwanemul) { | |
19d337df | 4580 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4581 | return 0; |
4582 | } | |
4583 | #endif | |
4584 | ||
19d337df | 4585 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4586 | status = TP_ACPI_WANCARD_RADIOSSW |
4587 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4588 | else | |
4589 | status = 0; | |
19d337df | 4590 | |
07431ec8 HMH |
4591 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4592 | return -EIO; | |
4593 | ||
4594 | return 0; | |
4595 | } | |
f74a27d4 | 4596 | |
d3a6ade4 HMH |
4597 | /* sysfs wan enable ---------------------------------------------------- */ |
4598 | static ssize_t wan_enable_show(struct device *dev, | |
4599 | struct device_attribute *attr, | |
4600 | char *buf) | |
4601 | { | |
19d337df JB |
4602 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4603 | attr, buf); | |
d3a6ade4 HMH |
4604 | } |
4605 | ||
4606 | static ssize_t wan_enable_store(struct device *dev, | |
4607 | struct device_attribute *attr, | |
4608 | const char *buf, size_t count) | |
4609 | { | |
19d337df JB |
4610 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4611 | attr, buf, count); | |
d3a6ade4 HMH |
4612 | } |
4613 | ||
5fb73bc2 BM |
4614 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4615 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4616 | |
4617 | /* --------------------------------------------------------------------- */ | |
4618 | ||
4619 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4620 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4621 | NULL |
4622 | }; | |
4623 | ||
4624 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4625 | .attrs = wan_attributes, |
4626 | }; | |
4627 | ||
19d337df JB |
4628 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4629 | .get_status = wan_get_status, | |
4630 | .set_status = wan_set_status, | |
4631 | }; | |
0e74dc26 | 4632 | |
90d9d3c7 HMH |
4633 | static void wan_shutdown(void) |
4634 | { | |
4635 | /* Order firmware to save current state to NVRAM */ | |
4636 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4637 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4638 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4639 | else |
4640 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4641 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4642 | } |
4643 | ||
07431ec8 HMH |
4644 | static void wan_exit(void) |
4645 | { | |
4646 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4647 | &wan_attr_group); | |
19d337df JB |
4648 | |
4649 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4650 | ||
4651 | wan_shutdown(); | |
07431ec8 HMH |
4652 | } |
4653 | ||
a5763f22 | 4654 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4655 | { |
d3a6ade4 | 4656 | int res; |
d6fdd1e9 HMH |
4657 | int status = 0; |
4658 | ||
bee4cd9b HMH |
4659 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4660 | "initializing wan subdriver\n"); | |
fe08bc4b | 4661 | |
e0c7dfe7 | 4662 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4663 | |
d8fd94d9 | 4664 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4665 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4666 | ||
bee4cd9b HMH |
4667 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4668 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4669 | str_supported(tp_features.wan), |
4670 | status); | |
4671 | ||
a73f3091 HMH |
4672 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4673 | if (dbg_wwanemul) { | |
4674 | tp_features.wan = 1; | |
0978e012 | 4675 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4676 | } else |
4677 | #endif | |
3a872080 HMH |
4678 | if (tp_features.wan && |
4679 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4680 | /* no wan hardware present in system */ | |
4681 | tp_features.wan = 0; | |
bee4cd9b | 4682 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4683 | "wan hardware not installed\n"); |
4684 | } | |
4685 | ||
0e74dc26 HMH |
4686 | if (!tp_features.wan) |
4687 | return 1; | |
4688 | ||
0e74dc26 | 4689 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4690 | &wan_tprfk_ops, |
0e74dc26 | 4691 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4692 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4693 | true); |
4694 | if (res) | |
4695 | return res; | |
4696 | ||
4697 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4698 | &wan_attr_group); | |
4699 | ||
0e74dc26 | 4700 | if (res) { |
19d337df | 4701 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4702 | return res; |
d6fdd1e9 | 4703 | } |
fe08bc4b | 4704 | |
0e74dc26 | 4705 | return 0; |
42adb53c JF |
4706 | } |
4707 | ||
d3a6ade4 | 4708 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4709 | static int wan_read(struct seq_file *m) |
42adb53c | 4710 | { |
887965e6 | 4711 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4712 | } |
4713 | ||
4714 | static int wan_write(char *buf) | |
4715 | { | |
19d337df | 4716 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4717 | } |
4718 | ||
a5763f22 HMH |
4719 | static struct ibm_struct wan_driver_data = { |
4720 | .name = "wan", | |
4721 | .read = wan_read, | |
4722 | .write = wan_write, | |
d3a6ade4 | 4723 | .exit = wan_exit, |
90d9d3c7 | 4724 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4725 | }; |
4726 | ||
0045c0aa HMH |
4727 | /************************************************************************* |
4728 | * UWB subdriver | |
4729 | */ | |
4730 | ||
4731 | enum { | |
4732 | /* ACPI GUWB/SUWB bits */ | |
4733 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4734 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4735 | }; | |
4736 | ||
bee4cd9b HMH |
4737 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4738 | ||
19d337df | 4739 | static int uwb_get_status(void) |
0045c0aa HMH |
4740 | { |
4741 | int status; | |
4742 | ||
0045c0aa HMH |
4743 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4744 | if (dbg_uwbemul) | |
4745 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4746 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4747 | #endif |
4748 | ||
4749 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4750 | return -EIO; | |
4751 | ||
4752 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4753 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4754 | } |
4755 | ||
19d337df | 4756 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4757 | { |
4758 | int status; | |
4759 | ||
bee4cd9b | 4760 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4761 | "will attempt to %s UWB\n", |
4762 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4763 | |
0045c0aa HMH |
4764 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4765 | if (dbg_uwbemul) { | |
19d337df | 4766 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4767 | return 0; |
4768 | } | |
4769 | #endif | |
4770 | ||
19d337df JB |
4771 | if (state == TPACPI_RFK_RADIO_ON) |
4772 | status = TP_ACPI_UWB_RADIOSSW; | |
4773 | else | |
4774 | status = 0; | |
4775 | ||
0045c0aa HMH |
4776 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4777 | return -EIO; | |
4778 | ||
0045c0aa HMH |
4779 | return 0; |
4780 | } | |
4781 | ||
4782 | /* --------------------------------------------------------------------- */ | |
4783 | ||
19d337df JB |
4784 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4785 | .get_status = uwb_get_status, | |
4786 | .set_status = uwb_set_status, | |
4787 | }; | |
0045c0aa HMH |
4788 | |
4789 | static void uwb_exit(void) | |
4790 | { | |
19d337df | 4791 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4792 | } |
4793 | ||
4794 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4795 | { | |
4796 | int res; | |
4797 | int status = 0; | |
4798 | ||
bee4cd9b HMH |
4799 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4800 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4801 | |
4802 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4803 | ||
4804 | tp_features.uwb = hkey_handle && | |
4805 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4806 | ||
bee4cd9b HMH |
4807 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4808 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4809 | str_supported(tp_features.uwb), |
4810 | status); | |
4811 | ||
4812 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4813 | if (dbg_uwbemul) { | |
4814 | tp_features.uwb = 1; | |
0978e012 | 4815 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4816 | } else |
4817 | #endif | |
4818 | if (tp_features.uwb && | |
4819 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4820 | /* no uwb hardware present in system */ | |
4821 | tp_features.uwb = 0; | |
4822 | dbg_printk(TPACPI_DBG_INIT, | |
4823 | "uwb hardware not installed\n"); | |
4824 | } | |
4825 | ||
4826 | if (!tp_features.uwb) | |
4827 | return 1; | |
4828 | ||
4829 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4830 | &uwb_tprfk_ops, |
0045c0aa | 4831 | RFKILL_TYPE_UWB, |
bee4cd9b | 4832 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4833 | false); |
0045c0aa HMH |
4834 | return res; |
4835 | } | |
4836 | ||
4837 | static struct ibm_struct uwb_driver_data = { | |
4838 | .name = "uwb", | |
4839 | .exit = uwb_exit, | |
4840 | .flags.experimental = 1, | |
4841 | }; | |
4842 | ||
56b6aeb0 HMH |
4843 | /************************************************************************* |
4844 | * Video subdriver | |
4845 | */ | |
4846 | ||
d7c1d17d HMH |
4847 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4848 | ||
f74a27d4 HMH |
4849 | enum video_access_mode { |
4850 | TPACPI_VIDEO_NONE = 0, | |
4851 | TPACPI_VIDEO_570, /* 570 */ | |
4852 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4853 | TPACPI_VIDEO_NEW, /* all others */ | |
4854 | }; | |
4855 | ||
4856 | enum { /* video status flags, based on VIDEO_570 */ | |
4857 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4858 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4859 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4860 | }; | |
4861 | ||
4862 | enum { /* TPACPI_VIDEO_570 constants */ | |
4863 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4864 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4865 | * video_status_flags */ | |
4866 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4867 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4868 | }; | |
4869 | ||
9a8e1738 HMH |
4870 | static enum video_access_mode video_supported; |
4871 | static int video_orig_autosw; | |
78f81cc4 | 4872 | |
f74a27d4 HMH |
4873 | static int video_autosw_get(void); |
4874 | static int video_autosw_set(int enable); | |
4875 | ||
112a6ee0 JP |
4876 | TPACPI_HANDLE(vid, root, |
4877 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4878 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4879 | "\\_SB.PCI0.VID0", /* 770e */ | |
4880 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4881 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4882 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4883 | ); /* R30, R31 */ | |
4884 | ||
e0c7dfe7 | 4885 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4886 | |
a5763f22 | 4887 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4888 | { |
78f81cc4 BD |
4889 | int ivga; |
4890 | ||
fe08bc4b HMH |
4891 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4892 | ||
e0c7dfe7 | 4893 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4894 | if (tpacpi_is_ibm()) |
4895 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4896 | |
78f81cc4 BD |
4897 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4898 | /* G41, assume IVGA doesn't change */ | |
4899 | vid_handle = vid2_handle; | |
4900 | ||
4901 | if (!vid_handle) | |
4902 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4903 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4904 | else if (tpacpi_is_ibm() && |
4905 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4906 | /* 570 */ |
efa27145 | 4907 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4908 | else if (tpacpi_is_ibm() && |
4909 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4910 | /* 600e/x, 770e, 770x */ |
efa27145 | 4911 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4912 | else |
4913 | /* all others */ | |
efa27145 | 4914 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4915 | |
fe08bc4b HMH |
4916 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4917 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4918 | video_supported); | |
4919 | ||
72a979f0 | 4920 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
4921 | } |
4922 | ||
56b6aeb0 HMH |
4923 | static void video_exit(void) |
4924 | { | |
83f34724 HMH |
4925 | dbg_printk(TPACPI_DBG_EXIT, |
4926 | "restoring original video autoswitch mode\n"); | |
4927 | if (video_autosw_set(video_orig_autosw)) | |
5cac62ac | 4928 | pr_err("error while trying to restore original video autoswitch mode\n"); |
56b6aeb0 HMH |
4929 | } |
4930 | ||
83f34724 | 4931 | static int video_outputsw_get(void) |
1da177e4 LT |
4932 | { |
4933 | int status = 0; | |
4934 | int i; | |
4935 | ||
83f34724 HMH |
4936 | switch (video_supported) { |
4937 | case TPACPI_VIDEO_570: | |
4938 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4939 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4940 | return -EIO; | |
4941 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4942 | break; | |
4943 | case TPACPI_VIDEO_770: | |
4944 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4945 | return -EIO; | |
4946 | if (i) | |
4947 | status |= TP_ACPI_VIDEO_S_LCD; | |
4948 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4949 | return -EIO; | |
4950 | if (i) | |
4951 | status |= TP_ACPI_VIDEO_S_CRT; | |
4952 | break; | |
4953 | case TPACPI_VIDEO_NEW: | |
4954 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4955 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4956 | return -EIO; | |
4957 | if (i) | |
4958 | status |= TP_ACPI_VIDEO_S_CRT; | |
4959 | ||
4960 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4961 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4962 | return -EIO; | |
4963 | if (i) | |
4964 | status |= TP_ACPI_VIDEO_S_LCD; | |
4965 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4966 | return -EIO; | |
4967 | if (i) | |
4968 | status |= TP_ACPI_VIDEO_S_DVI; | |
4969 | break; | |
4970 | default: | |
4971 | return -ENOSYS; | |
78f81cc4 BD |
4972 | } |
4973 | ||
4974 | return status; | |
4975 | } | |
1da177e4 | 4976 | |
83f34724 | 4977 | static int video_outputsw_set(int status) |
78f81cc4 | 4978 | { |
83f34724 HMH |
4979 | int autosw; |
4980 | int res = 0; | |
4981 | ||
4982 | switch (video_supported) { | |
4983 | case TPACPI_VIDEO_570: | |
4984 | res = acpi_evalf(NULL, NULL, | |
4985 | "\\_SB.PHS2", "vdd", | |
4986 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4987 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4988 | break; | |
4989 | case TPACPI_VIDEO_770: | |
4990 | autosw = video_autosw_get(); | |
4991 | if (autosw < 0) | |
4992 | return autosw; | |
1da177e4 | 4993 | |
83f34724 HMH |
4994 | res = video_autosw_set(1); |
4995 | if (res) | |
4996 | return res; | |
4997 | res = acpi_evalf(vid_handle, NULL, | |
4998 | "ASWT", "vdd", status * 0x100, 0); | |
4999 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5000 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
5001 | return -EIO; |
5002 | } | |
5003 | break; | |
5004 | case TPACPI_VIDEO_NEW: | |
5005 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 5006 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
5007 | break; |
5008 | default: | |
5009 | return -ENOSYS; | |
5010 | } | |
1da177e4 | 5011 | |
72a979f0 | 5012 | return (res) ? 0 : -EIO; |
1da177e4 LT |
5013 | } |
5014 | ||
83f34724 | 5015 | static int video_autosw_get(void) |
78f81cc4 | 5016 | { |
83f34724 | 5017 | int autosw = 0; |
78f81cc4 | 5018 | |
83f34724 HMH |
5019 | switch (video_supported) { |
5020 | case TPACPI_VIDEO_570: | |
5021 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
5022 | return -EIO; | |
5023 | break; | |
5024 | case TPACPI_VIDEO_770: | |
5025 | case TPACPI_VIDEO_NEW: | |
5026 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
5027 | return -EIO; | |
5028 | break; | |
5029 | default: | |
5030 | return -ENOSYS; | |
5031 | } | |
78f81cc4 | 5032 | |
83f34724 | 5033 | return autosw & 1; |
78f81cc4 BD |
5034 | } |
5035 | ||
83f34724 | 5036 | static int video_autosw_set(int enable) |
78f81cc4 | 5037 | { |
72a979f0 | 5038 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
5039 | return -EIO; |
5040 | return 0; | |
78f81cc4 BD |
5041 | } |
5042 | ||
83f34724 | 5043 | static int video_outputsw_cycle(void) |
78f81cc4 | 5044 | { |
83f34724 HMH |
5045 | int autosw = video_autosw_get(); |
5046 | int res; | |
78f81cc4 | 5047 | |
83f34724 HMH |
5048 | if (autosw < 0) |
5049 | return autosw; | |
78f81cc4 | 5050 | |
83f34724 HMH |
5051 | switch (video_supported) { |
5052 | case TPACPI_VIDEO_570: | |
5053 | res = video_autosw_set(1); | |
5054 | if (res) | |
5055 | return res; | |
5056 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
5057 | break; | |
5058 | case TPACPI_VIDEO_770: | |
5059 | case TPACPI_VIDEO_NEW: | |
5060 | res = video_autosw_set(1); | |
5061 | if (res) | |
5062 | return res; | |
5063 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
5064 | break; | |
5065 | default: | |
5066 | return -ENOSYS; | |
5067 | } | |
5068 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5069 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 5070 | return -EIO; |
78f81cc4 BD |
5071 | } |
5072 | ||
72a979f0 | 5073 | return (res) ? 0 : -EIO; |
83f34724 HMH |
5074 | } |
5075 | ||
5076 | static int video_expand_toggle(void) | |
5077 | { | |
5078 | switch (video_supported) { | |
5079 | case TPACPI_VIDEO_570: | |
72a979f0 | 5080 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
5081 | 0 : -EIO; |
5082 | case TPACPI_VIDEO_770: | |
72a979f0 | 5083 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
5084 | 0 : -EIO; |
5085 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 5086 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
5087 | 0 : -EIO; |
5088 | default: | |
5089 | return -ENOSYS; | |
5090 | } | |
5091 | /* not reached */ | |
78f81cc4 BD |
5092 | } |
5093 | ||
887965e6 | 5094 | static int video_read(struct seq_file *m) |
56b6aeb0 | 5095 | { |
83f34724 | 5096 | int status, autosw; |
56b6aeb0 | 5097 | |
83f34724 | 5098 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
5099 | seq_printf(m, "status:\t\tnot supported\n"); |
5100 | return 0; | |
56b6aeb0 HMH |
5101 | } |
5102 | ||
b525c06c HMH |
5103 | /* Even reads can crash X.org, so... */ |
5104 | if (!capable(CAP_SYS_ADMIN)) | |
5105 | return -EPERM; | |
5106 | ||
83f34724 HMH |
5107 | status = video_outputsw_get(); |
5108 | if (status < 0) | |
5109 | return status; | |
5110 | ||
5111 | autosw = video_autosw_get(); | |
5112 | if (autosw < 0) | |
5113 | return autosw; | |
5114 | ||
887965e6 AD |
5115 | seq_printf(m, "status:\t\tsupported\n"); |
5116 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
5117 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 5118 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5119 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
5120 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
5121 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
5122 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 5123 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5124 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
5125 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
5126 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 5127 | |
887965e6 | 5128 | return 0; |
56b6aeb0 HMH |
5129 | } |
5130 | ||
78f81cc4 | 5131 | static int video_write(char *buf) |
1da177e4 LT |
5132 | { |
5133 | char *cmd; | |
5134 | int enable, disable, status; | |
83f34724 | 5135 | int res; |
1da177e4 | 5136 | |
83f34724 | 5137 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
5138 | return -ENODEV; |
5139 | ||
b525c06c HMH |
5140 | /* Even reads can crash X.org, let alone writes... */ |
5141 | if (!capable(CAP_SYS_ADMIN)) | |
5142 | return -EPERM; | |
5143 | ||
83f34724 HMH |
5144 | enable = 0; |
5145 | disable = 0; | |
1da177e4 LT |
5146 | |
5147 | while ((cmd = next_cmd(&buf))) { | |
5148 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 5149 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5150 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 5151 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5152 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 5153 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 5154 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 5155 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 5156 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5157 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 5158 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 5159 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5160 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 5161 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 5162 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
5163 | res = video_autosw_set(1); |
5164 | if (res) | |
5165 | return res; | |
1da177e4 | 5166 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
5167 | res = video_autosw_set(0); |
5168 | if (res) | |
5169 | return res; | |
1da177e4 | 5170 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
5171 | res = video_outputsw_cycle(); |
5172 | if (res) | |
5173 | return res; | |
1da177e4 | 5174 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
5175 | res = video_expand_toggle(); |
5176 | if (res) | |
5177 | return res; | |
1da177e4 LT |
5178 | } else |
5179 | return -EINVAL; | |
5180 | } | |
5181 | ||
5182 | if (enable || disable) { | |
83f34724 HMH |
5183 | status = video_outputsw_get(); |
5184 | if (status < 0) | |
5185 | return status; | |
5186 | res = video_outputsw_set((status & ~disable) | enable); | |
5187 | if (res) | |
5188 | return res; | |
1da177e4 LT |
5189 | } |
5190 | ||
5191 | return 0; | |
5192 | } | |
5193 | ||
a5763f22 HMH |
5194 | static struct ibm_struct video_driver_data = { |
5195 | .name = "video", | |
5196 | .read = video_read, | |
5197 | .write = video_write, | |
5198 | .exit = video_exit, | |
5199 | }; | |
5200 | ||
d7c1d17d HMH |
5201 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
5202 | ||
bb28f3d5 PR |
5203 | /************************************************************************* |
5204 | * Keyboard backlight subdriver | |
5205 | */ | |
5206 | ||
c685e20d HG |
5207 | static enum led_brightness kbdlight_brightness; |
5208 | static DEFINE_MUTEX(kbdlight_mutex); | |
5209 | ||
bb28f3d5 PR |
5210 | static int kbdlight_set_level(int level) |
5211 | { | |
c685e20d HG |
5212 | int ret = 0; |
5213 | ||
bb28f3d5 PR |
5214 | if (!hkey_handle) |
5215 | return -ENXIO; | |
5216 | ||
c685e20d HG |
5217 | mutex_lock(&kbdlight_mutex); |
5218 | ||
bb28f3d5 | 5219 | if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) |
c685e20d HG |
5220 | ret = -EIO; |
5221 | else | |
5222 | kbdlight_brightness = level; | |
bb28f3d5 | 5223 | |
c685e20d HG |
5224 | mutex_unlock(&kbdlight_mutex); |
5225 | ||
5226 | return ret; | |
bb28f3d5 PR |
5227 | } |
5228 | ||
5229 | static int kbdlight_get_level(void) | |
5230 | { | |
5231 | int status = 0; | |
5232 | ||
5233 | if (!hkey_handle) | |
5234 | return -ENXIO; | |
5235 | ||
5236 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) | |
5237 | return -EIO; | |
5238 | ||
5239 | if (status < 0) | |
5240 | return status; | |
5241 | ||
5242 | return status & 0x3; | |
5243 | } | |
5244 | ||
5245 | static bool kbdlight_is_supported(void) | |
5246 | { | |
5247 | int status = 0; | |
5248 | ||
5249 | if (!hkey_handle) | |
5250 | return false; | |
5251 | ||
5252 | if (!acpi_has_method(hkey_handle, "MLCG")) { | |
5253 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); | |
5254 | return false; | |
5255 | } | |
5256 | ||
5257 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { | |
5258 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); | |
5259 | return false; | |
5260 | } | |
5261 | ||
5262 | if (status < 0) { | |
5263 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); | |
5264 | return false; | |
5265 | } | |
5266 | ||
5267 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); | |
5268 | /* | |
5269 | * Guessed test for keyboard backlight: | |
5270 | * | |
5271 | * Machines with backlight keyboard return: | |
5272 | * b010100000010000000XX - ThinkPad X1 Carbon 3rd | |
5273 | * b110100010010000000XX - ThinkPad x230 | |
5274 | * b010100000010000000XX - ThinkPad x240 | |
5275 | * b010100000010000000XX - ThinkPad W541 | |
5276 | * (XX is current backlight level) | |
5277 | * | |
5278 | * Machines without backlight keyboard return: | |
5279 | * b10100001000000000000 - ThinkPad x230 | |
5280 | * b10110001000000000000 - ThinkPad E430 | |
5281 | * b00000000000000000000 - ThinkPad E450 | |
5282 | * | |
5283 | * Candidate BITs for detection test (XOR): | |
5284 | * b01000000001000000000 | |
5285 | * ^ | |
5286 | */ | |
5287 | return status & BIT(9); | |
5288 | } | |
5289 | ||
86ec0c2c | 5290 | static int kbdlight_sysfs_set(struct led_classdev *led_cdev, |
bb28f3d5 PR |
5291 | enum led_brightness brightness) |
5292 | { | |
86ec0c2c | 5293 | return kbdlight_set_level(brightness); |
bb28f3d5 PR |
5294 | } |
5295 | ||
5296 | static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) | |
5297 | { | |
5298 | int level; | |
5299 | ||
5300 | level = kbdlight_get_level(); | |
5301 | if (level < 0) | |
5302 | return 0; | |
5303 | ||
5304 | return level; | |
5305 | } | |
5306 | ||
5307 | static struct tpacpi_led_classdev tpacpi_led_kbdlight = { | |
5308 | .led_classdev = { | |
5309 | .name = "tpacpi::kbd_backlight", | |
5310 | .max_brightness = 2, | |
c685e20d | 5311 | .flags = LED_BRIGHT_HW_CHANGED, |
86ec0c2c | 5312 | .brightness_set_blocking = &kbdlight_sysfs_set, |
bb28f3d5 | 5313 | .brightness_get = &kbdlight_sysfs_get, |
bb28f3d5 PR |
5314 | } |
5315 | }; | |
5316 | ||
5317 | static int __init kbdlight_init(struct ibm_init_struct *iibm) | |
5318 | { | |
5319 | int rc; | |
5320 | ||
5321 | vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); | |
5322 | ||
5323 | TPACPI_ACPIHANDLE_INIT(hkey); | |
bb28f3d5 PR |
5324 | |
5325 | if (!kbdlight_is_supported()) { | |
5326 | tp_features.kbdlight = 0; | |
5327 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); | |
5328 | return 1; | |
5329 | } | |
5330 | ||
c685e20d | 5331 | kbdlight_brightness = kbdlight_sysfs_get(NULL); |
bb28f3d5 PR |
5332 | tp_features.kbdlight = 1; |
5333 | ||
5334 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5335 | &tpacpi_led_kbdlight.led_classdev); | |
5336 | if (rc < 0) { | |
5337 | tp_features.kbdlight = 0; | |
5338 | return rc; | |
5339 | } | |
5340 | ||
c685e20d HG |
5341 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
5342 | TP_ACPI_HKEY_KBD_LIGHT_MASK); | |
bb28f3d5 PR |
5343 | return 0; |
5344 | } | |
5345 | ||
5346 | static void kbdlight_exit(void) | |
5347 | { | |
5348 | if (tp_features.kbdlight) | |
5349 | led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5350 | } |
5351 | ||
afcedebc MTT |
5352 | static int kbdlight_set_level_and_update(int level) |
5353 | { | |
5354 | int ret; | |
5355 | struct led_classdev *led_cdev; | |
5356 | ||
5357 | ret = kbdlight_set_level(level); | |
5358 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5359 | ||
5360 | if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) | |
5361 | led_cdev->brightness = level; | |
5362 | ||
5363 | return ret; | |
5364 | } | |
5365 | ||
bb28f3d5 PR |
5366 | static int kbdlight_read(struct seq_file *m) |
5367 | { | |
5368 | int level; | |
5369 | ||
5370 | if (!tp_features.kbdlight) { | |
5371 | seq_printf(m, "status:\t\tnot supported\n"); | |
5372 | } else { | |
5373 | level = kbdlight_get_level(); | |
5374 | if (level < 0) | |
5375 | seq_printf(m, "status:\t\terror %d\n", level); | |
5376 | else | |
5377 | seq_printf(m, "status:\t\t%d\n", level); | |
5378 | seq_printf(m, "commands:\t0, 1, 2\n"); | |
5379 | } | |
5380 | ||
5381 | return 0; | |
5382 | } | |
5383 | ||
5384 | static int kbdlight_write(char *buf) | |
5385 | { | |
5386 | char *cmd; | |
5387 | int level = -1; | |
5388 | ||
5389 | if (!tp_features.kbdlight) | |
5390 | return -ENODEV; | |
5391 | ||
5392 | while ((cmd = next_cmd(&buf))) { | |
5393 | if (strlencmp(cmd, "0") == 0) | |
5394 | level = 0; | |
5395 | else if (strlencmp(cmd, "1") == 0) | |
5396 | level = 1; | |
5397 | else if (strlencmp(cmd, "2") == 0) | |
5398 | level = 2; | |
5399 | else | |
5400 | return -EINVAL; | |
5401 | } | |
5402 | ||
5403 | if (level == -1) | |
5404 | return -EINVAL; | |
5405 | ||
afcedebc MTT |
5406 | return kbdlight_set_level_and_update(level); |
5407 | } | |
5408 | ||
5409 | static void kbdlight_suspend(void) | |
5410 | { | |
5411 | struct led_classdev *led_cdev; | |
5412 | ||
5413 | if (!tp_features.kbdlight) | |
5414 | return; | |
5415 | ||
5416 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5417 | led_update_brightness(led_cdev); | |
5418 | led_classdev_suspend(led_cdev); | |
5419 | } | |
5420 | ||
5421 | static void kbdlight_resume(void) | |
5422 | { | |
5423 | if (!tp_features.kbdlight) | |
5424 | return; | |
5425 | ||
5426 | led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5427 | } |
5428 | ||
5429 | static struct ibm_struct kbdlight_driver_data = { | |
5430 | .name = "kbdlight", | |
5431 | .read = kbdlight_read, | |
5432 | .write = kbdlight_write, | |
afcedebc MTT |
5433 | .suspend = kbdlight_suspend, |
5434 | .resume = kbdlight_resume, | |
bb28f3d5 PR |
5435 | .exit = kbdlight_exit, |
5436 | }; | |
5437 | ||
56b6aeb0 HMH |
5438 | /************************************************************************* |
5439 | * Light (thinklight) subdriver | |
5440 | */ | |
1da177e4 | 5441 | |
e0c7dfe7 HMH |
5442 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
5443 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 5444 | |
4fa6811b HMH |
5445 | static int light_get_status(void) |
5446 | { | |
5447 | int status = 0; | |
5448 | ||
5449 | if (tp_features.light_status) { | |
5450 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5451 | return -EIO; | |
5452 | return (!!status); | |
5453 | } | |
5454 | ||
5455 | return -ENXIO; | |
5456 | } | |
5457 | ||
5458 | static int light_set_status(int status) | |
5459 | { | |
5460 | int rc; | |
5461 | ||
5462 | if (tp_features.light) { | |
5463 | if (cmos_handle) { | |
5464 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5465 | (status) ? |
4fa6811b HMH |
5466 | TP_CMOS_THINKLIGHT_ON : |
5467 | TP_CMOS_THINKLIGHT_OFF); | |
5468 | } else { | |
5469 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5470 | (status) ? 1 : 0); |
4fa6811b | 5471 | } |
72a979f0 | 5472 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5473 | } |
5474 | ||
5475 | return -ENXIO; | |
5476 | } | |
5477 | ||
86ec0c2c | 5478 | static int light_sysfs_set(struct led_classdev *led_cdev, |
e306501d HMH |
5479 | enum led_brightness brightness) |
5480 | { | |
86ec0c2c HG |
5481 | return light_set_status((brightness != LED_OFF) ? |
5482 | TPACPI_LED_ON : TPACPI_LED_OFF); | |
e306501d HMH |
5483 | } |
5484 | ||
5485 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5486 | { | |
72a979f0 | 5487 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5488 | } |
5489 | ||
5490 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5491 | .led_classdev = { | |
5492 | .name = "tpacpi::thinklight", | |
86ec0c2c | 5493 | .brightness_set_blocking = &light_sysfs_set, |
e306501d HMH |
5494 | .brightness_get = &light_sysfs_get, |
5495 | } | |
5496 | }; | |
5497 | ||
a5763f22 | 5498 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5499 | { |
9c0a76e1 | 5500 | int rc; |
e306501d | 5501 | |
fe08bc4b HMH |
5502 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5503 | ||
e28393c0 HMH |
5504 | if (tpacpi_is_ibm()) { |
5505 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5506 | TPACPI_ACPIHANDLE_INIT(lght); | |
5507 | } | |
e0c7dfe7 | 5508 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5509 | |
78f81cc4 | 5510 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5511 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5512 | |
d8fd94d9 | 5513 | if (tp_features.light) |
78f81cc4 BD |
5514 | /* light status not supported on |
5515 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5516 | tp_features.light_status = |
5517 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5518 | |
9c0a76e1 HMH |
5519 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5520 | str_supported(tp_features.light), | |
5521 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5522 | |
9c0a76e1 HMH |
5523 | if (!tp_features.light) |
5524 | return 1; | |
5525 | ||
5526 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5527 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5528 | |
5529 | if (rc < 0) { | |
5530 | tp_features.light = 0; | |
5531 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5532 | } else { |
5533 | rc = 0; | |
e306501d | 5534 | } |
9c0a76e1 | 5535 | |
e306501d HMH |
5536 | return rc; |
5537 | } | |
5538 | ||
5539 | static void light_exit(void) | |
5540 | { | |
5541 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
1da177e4 LT |
5542 | } |
5543 | ||
887965e6 | 5544 | static int light_read(struct seq_file *m) |
1da177e4 | 5545 | { |
4fa6811b | 5546 | int status; |
1da177e4 | 5547 | |
d8fd94d9 | 5548 | if (!tp_features.light) { |
887965e6 | 5549 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5550 | } else if (!tp_features.light_status) { |
887965e6 AD |
5551 | seq_printf(m, "status:\t\tunknown\n"); |
5552 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5553 | } else { |
4fa6811b HMH |
5554 | status = light_get_status(); |
5555 | if (status < 0) | |
5556 | return status; | |
887965e6 AD |
5557 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5558 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5559 | } |
1da177e4 | 5560 | |
887965e6 | 5561 | return 0; |
1da177e4 LT |
5562 | } |
5563 | ||
78f81cc4 | 5564 | static int light_write(char *buf) |
1da177e4 | 5565 | { |
1da177e4 | 5566 | char *cmd; |
4fa6811b | 5567 | int newstatus = 0; |
78f81cc4 | 5568 | |
d8fd94d9 | 5569 | if (!tp_features.light) |
78f81cc4 BD |
5570 | return -ENODEV; |
5571 | ||
1da177e4 LT |
5572 | while ((cmd = next_cmd(&buf))) { |
5573 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5574 | newstatus = 1; |
1da177e4 | 5575 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5576 | newstatus = 0; |
1da177e4 LT |
5577 | } else |
5578 | return -EINVAL; | |
1da177e4 LT |
5579 | } |
5580 | ||
4fa6811b | 5581 | return light_set_status(newstatus); |
1da177e4 LT |
5582 | } |
5583 | ||
a5763f22 HMH |
5584 | static struct ibm_struct light_driver_data = { |
5585 | .name = "light", | |
5586 | .read = light_read, | |
5587 | .write = light_write, | |
e306501d | 5588 | .exit = light_exit, |
a5763f22 HMH |
5589 | }; |
5590 | ||
56b6aeb0 HMH |
5591 | /************************************************************************* |
5592 | * CMOS subdriver | |
5593 | */ | |
5594 | ||
b616004c HMH |
5595 | /* sysfs cmos_command -------------------------------------------------- */ |
5596 | static ssize_t cmos_command_store(struct device *dev, | |
5597 | struct device_attribute *attr, | |
5598 | const char *buf, size_t count) | |
5599 | { | |
5600 | unsigned long cmos_cmd; | |
5601 | int res; | |
5602 | ||
5603 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5604 | return -EINVAL; | |
5605 | ||
5606 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5607 | return (res) ? res : count; |
b616004c HMH |
5608 | } |
5609 | ||
b4dd04ac | 5610 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5611 | |
5612 | /* --------------------------------------------------------------------- */ | |
5613 | ||
a5763f22 | 5614 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5615 | { |
b616004c HMH |
5616 | int res; |
5617 | ||
fe08bc4b HMH |
5618 | vdbg_printk(TPACPI_DBG_INIT, |
5619 | "initializing cmos commands subdriver\n"); | |
5620 | ||
e0c7dfe7 | 5621 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5622 | |
fe08bc4b HMH |
5623 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5624 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5625 | |
5626 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5627 | if (res) | |
5628 | return res; | |
5629 | ||
72a979f0 | 5630 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5631 | } |
5632 | ||
b616004c HMH |
5633 | static void cmos_exit(void) |
5634 | { | |
5635 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5636 | } | |
5637 | ||
887965e6 | 5638 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5639 | { |
78f81cc4 BD |
5640 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5641 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5642 | if (!cmos_handle) |
887965e6 | 5643 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5644 | else { |
887965e6 AD |
5645 | seq_printf(m, "status:\t\tsupported\n"); |
5646 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5647 | } |
5648 | ||
887965e6 | 5649 | return 0; |
1da177e4 LT |
5650 | } |
5651 | ||
78f81cc4 | 5652 | static int cmos_write(char *buf) |
1da177e4 LT |
5653 | { |
5654 | char *cmd; | |
c9bea99c | 5655 | int cmos_cmd, res; |
1da177e4 LT |
5656 | |
5657 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5658 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5659 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5660 | /* cmos_cmd set */ |
5661 | } else | |
5662 | return -EINVAL; | |
5663 | ||
c9bea99c HMH |
5664 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5665 | if (res) | |
5666 | return res; | |
1da177e4 LT |
5667 | } |
5668 | ||
5669 | return 0; | |
78f81cc4 BD |
5670 | } |
5671 | ||
a5763f22 HMH |
5672 | static struct ibm_struct cmos_driver_data = { |
5673 | .name = "cmos", | |
5674 | .read = cmos_read, | |
5675 | .write = cmos_write, | |
b616004c | 5676 | .exit = cmos_exit, |
a5763f22 | 5677 | }; |
56b6aeb0 HMH |
5678 | |
5679 | /************************************************************************* | |
5680 | * LED subdriver | |
5681 | */ | |
5682 | ||
f74a27d4 HMH |
5683 | enum led_access_mode { |
5684 | TPACPI_LED_NONE = 0, | |
5685 | TPACPI_LED_570, /* 570 */ | |
5686 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5687 | TPACPI_LED_NEW, /* all others */ | |
5688 | }; | |
5689 | ||
5690 | enum { /* For TPACPI_LED_OLD */ | |
5691 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5692 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5693 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5694 | }; | |
5695 | ||
9a8e1738 | 5696 | static enum led_access_mode led_supported; |
78f81cc4 | 5697 | |
2cbb5c8f | 5698 | static acpi_handle led_handle; |
56b6aeb0 | 5699 | |
f21179a4 | 5700 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5701 | static struct tpacpi_led_classdev *tpacpi_leds; |
5702 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5703 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5704 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5705 | "tpacpi::power", | |
5706 | "tpacpi:orange:batt", | |
5707 | "tpacpi:green:batt", | |
5708 | "tpacpi::dock_active", | |
5709 | "tpacpi::bay_active", | |
5710 | "tpacpi::dock_batt", | |
5711 | "tpacpi::unknown_led", | |
5712 | "tpacpi::standby", | |
f21179a4 HMH |
5713 | "tpacpi::dock_status1", |
5714 | "tpacpi::dock_status2", | |
5715 | "tpacpi::unknown_led2", | |
5716 | "tpacpi::unknown_led3", | |
5717 | "tpacpi::thinkvantage", | |
af116101 | 5718 | }; |
f21179a4 | 5719 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5720 | |
5721 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5722 | { | |
5723 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5724 | return false; | |
5725 | #else | |
f21179a4 | 5726 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5727 | #endif |
5728 | } | |
af116101 | 5729 | |
24e45bbe | 5730 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5731 | { |
5732 | int status; | |
af116101 | 5733 | enum led_status_t led_s; |
4fa6811b HMH |
5734 | |
5735 | switch (led_supported) { | |
5736 | case TPACPI_LED_570: | |
5737 | if (!acpi_evalf(ec_handle, | |
5738 | &status, "GLED", "dd", 1 << led)) | |
5739 | return -EIO; | |
72a979f0 | 5740 | led_s = (status == 0) ? |
4fa6811b | 5741 | TPACPI_LED_OFF : |
72a979f0 | 5742 | ((status == 1) ? |
4fa6811b HMH |
5743 | TPACPI_LED_ON : |
5744 | TPACPI_LED_BLINK); | |
af116101 HMH |
5745 | tpacpi_led_state_cache[led] = led_s; |
5746 | return led_s; | |
4fa6811b HMH |
5747 | default: |
5748 | return -ENXIO; | |
5749 | } | |
5750 | ||
5751 | /* not reached */ | |
5752 | } | |
5753 | ||
24e45bbe HMH |
5754 | static int led_set_status(const unsigned int led, |
5755 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5756 | { |
5757 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5758 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5759 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5760 | |
5761 | int rc = 0; | |
5762 | ||
5763 | switch (led_supported) { | |
5764 | case TPACPI_LED_570: | |
24e45bbe | 5765 | /* 570 */ |
a4d5effc | 5766 | if (unlikely(led > 7)) |
24e45bbe | 5767 | return -EINVAL; |
a4d5effc HMH |
5768 | if (unlikely(tpacpi_is_led_restricted(led))) |
5769 | return -EPERM; | |
24e45bbe HMH |
5770 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5771 | (1 << led), led_sled_arg1[ledstatus])) | |
5772 | rc = -EIO; | |
5773 | break; | |
4fa6811b | 5774 | case TPACPI_LED_OLD: |
24e45bbe | 5775 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5776 | if (unlikely(led > 7)) |
24e45bbe | 5777 | return -EINVAL; |
a4d5effc HMH |
5778 | if (unlikely(tpacpi_is_led_restricted(led))) |
5779 | return -EPERM; | |
24e45bbe HMH |
5780 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5781 | if (rc >= 0) | |
5782 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5783 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5784 | if (rc >= 0) | |
5785 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5786 | (ledstatus != TPACPI_LED_OFF) << led); | |
5787 | break; | |
4fa6811b | 5788 | case TPACPI_LED_NEW: |
24e45bbe | 5789 | /* all others */ |
a4d5effc HMH |
5790 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5791 | return -EINVAL; | |
5792 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5793 | return -EPERM; | |
24e45bbe HMH |
5794 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5795 | led, led_led_arg1[ledstatus])) | |
5796 | rc = -EIO; | |
5797 | break; | |
4fa6811b HMH |
5798 | default: |
5799 | rc = -ENXIO; | |
5800 | } | |
5801 | ||
af116101 HMH |
5802 | if (!rc) |
5803 | tpacpi_led_state_cache[led] = ledstatus; | |
5804 | ||
5805 | return rc; | |
5806 | } | |
5807 | ||
86ec0c2c | 5808 | static int led_sysfs_set(struct led_classdev *led_cdev, |
af116101 HMH |
5809 | enum led_brightness brightness) |
5810 | { | |
5811 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5812 | struct tpacpi_led_classdev, led_classdev); | |
86ec0c2c | 5813 | enum led_status_t new_state; |
af116101 | 5814 | |
75bd3bf2 | 5815 | if (brightness == LED_OFF) |
86ec0c2c | 5816 | new_state = TPACPI_LED_OFF; |
75bd3bf2 | 5817 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) |
86ec0c2c | 5818 | new_state = TPACPI_LED_ON; |
75bd3bf2 | 5819 | else |
86ec0c2c | 5820 | new_state = TPACPI_LED_BLINK; |
75bd3bf2 | 5821 | |
86ec0c2c | 5822 | return led_set_status(data->led, new_state); |
af116101 HMH |
5823 | } |
5824 | ||
5825 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5826 | unsigned long *delay_on, unsigned long *delay_off) | |
5827 | { | |
5828 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5829 | struct tpacpi_led_classdev, led_classdev); | |
5830 | ||
5831 | /* Can we choose the flash rate? */ | |
5832 | if (*delay_on == 0 && *delay_off == 0) { | |
5833 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5834 | *delay_on = 500; /* ms */ | |
5835 | *delay_off = 500; /* ms */ | |
5836 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5837 | return -EINVAL; | |
5838 | ||
86ec0c2c | 5839 | return led_set_status(data->led, TPACPI_LED_BLINK); |
af116101 HMH |
5840 | } |
5841 | ||
5842 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5843 | { | |
5844 | int rc; | |
5845 | ||
5846 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5847 | struct tpacpi_led_classdev, led_classdev); | |
5848 | ||
5849 | rc = led_get_status(data->led); | |
5850 | ||
5851 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5852 | rc = LED_OFF; /* no error handling in led class :( */ | |
5853 | else | |
5854 | rc = LED_FULL; | |
5855 | ||
4fa6811b HMH |
5856 | return rc; |
5857 | } | |
5858 | ||
af116101 HMH |
5859 | static void led_exit(void) |
5860 | { | |
5861 | unsigned int i; | |
5862 | ||
5863 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5864 | if (tpacpi_leds[i].led_classdev.name) | |
5865 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5866 | } | |
5867 | ||
5868 | kfree(tpacpi_leds); | |
af116101 HMH |
5869 | } |
5870 | ||
a4d5effc HMH |
5871 | static int __init tpacpi_init_led(unsigned int led) |
5872 | { | |
5873 | int rc; | |
5874 | ||
5875 | tpacpi_leds[led].led = led; | |
5876 | ||
f21179a4 HMH |
5877 | /* LEDs with no name don't get registered */ |
5878 | if (!tpacpi_led_names[led]) | |
5879 | return 0; | |
5880 | ||
86ec0c2c | 5881 | tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set; |
a4d5effc HMH |
5882 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; |
5883 | if (led_supported == TPACPI_LED_570) | |
5884 | tpacpi_leds[led].led_classdev.brightness_get = | |
5885 | &led_sysfs_get; | |
5886 | ||
5887 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5888 | ||
a4d5effc HMH |
5889 | rc = led_classdev_register(&tpacpi_pdev->dev, |
5890 | &tpacpi_leds[led].led_classdev); | |
5891 | if (rc < 0) | |
5892 | tpacpi_leds[led].led_classdev.name = NULL; | |
5893 | ||
5894 | return rc; | |
5895 | } | |
5896 | ||
f21179a4 HMH |
5897 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5898 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5899 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5900 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5901 | ||
5902 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5903 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5904 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5905 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5906 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5907 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5908 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5909 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5910 | ||
5911 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5912 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5913 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5914 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5915 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5916 | ||
5917 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5918 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5919 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5920 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5921 | ||
5922 | /* (1) - may have excess leds enabled on MSB */ | |
5923 | ||
5924 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5925 | { /* Lenovo */ | |
5926 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5927 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5928 | .quirks = 0x1fffU, | |
5929 | }, | |
5930 | { /* IBM ThinkPads with no EC version string */ | |
5931 | .vendor = PCI_VENDOR_ID_IBM, | |
5932 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5933 | .quirks = 0x00ffU, | |
5934 | }, | |
5935 | { /* IBM ThinkPads with EC version string */ | |
5936 | .vendor = PCI_VENDOR_ID_IBM, | |
5937 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5938 | .quirks = 0x00bfU, | |
5939 | }, | |
5940 | }; | |
5941 | ||
5942 | #undef TPACPI_LEDQ_IBM | |
5943 | #undef TPACPI_LEDQ_LNV | |
5944 | ||
2cbb5c8f HMH |
5945 | static enum led_access_mode __init led_init_detect_mode(void) |
5946 | { | |
5947 | acpi_status status; | |
5948 | ||
5949 | if (tpacpi_is_ibm()) { | |
5950 | /* 570 */ | |
5951 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5952 | if (ACPI_SUCCESS(status)) | |
5953 | return TPACPI_LED_570; | |
5954 | ||
5955 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5956 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5957 | if (ACPI_SUCCESS(status)) | |
5958 | return TPACPI_LED_OLD; | |
5959 | } | |
5960 | ||
5961 | /* most others */ | |
5962 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5963 | if (ACPI_SUCCESS(status)) | |
5964 | return TPACPI_LED_NEW; | |
5965 | ||
5966 | /* R30, R31, and unknown firmwares */ | |
5967 | led_handle = NULL; | |
5968 | return TPACPI_LED_NONE; | |
5969 | } | |
5970 | ||
a5763f22 | 5971 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5972 | { |
af116101 HMH |
5973 | unsigned int i; |
5974 | int rc; | |
f21179a4 | 5975 | unsigned long useful_leds; |
af116101 | 5976 | |
fe08bc4b HMH |
5977 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5978 | ||
2cbb5c8f | 5979 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5980 | |
fcb44e12 AL |
5981 | if (led_supported != TPACPI_LED_NONE) { |
5982 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
5983 | ARRAY_SIZE(led_useful_qtable)); | |
5984 | ||
5985 | if (!useful_leds) { | |
5986 | led_handle = NULL; | |
5987 | led_supported = TPACPI_LED_NONE; | |
5988 | } | |
5989 | } | |
5990 | ||
fe08bc4b HMH |
5991 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5992 | str_supported(led_supported), led_supported); | |
5993 | ||
f21179a4 HMH |
5994 | if (led_supported == TPACPI_LED_NONE) |
5995 | return 1; | |
5996 | ||
af116101 HMH |
5997 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5998 | GFP_KERNEL); | |
5999 | if (!tpacpi_leds) { | |
0978e012 | 6000 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
6001 | return -ENOMEM; |
6002 | } | |
6003 | ||
6004 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
6005 | tpacpi_leds[i].led = -1; |
6006 | ||
f21179a4 HMH |
6007 | if (!tpacpi_is_led_restricted(i) && |
6008 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
6009 | rc = tpacpi_init_led(i); |
6010 | if (rc < 0) { | |
6011 | led_exit(); | |
6012 | return rc; | |
6013 | } | |
af116101 HMH |
6014 | } |
6015 | } | |
6016 | ||
a4d5effc | 6017 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
5cac62ac | 6018 | pr_notice("warning: userspace override of important firmware LEDs is enabled\n"); |
a4d5effc | 6019 | #endif |
f21179a4 | 6020 | return 0; |
78f81cc4 BD |
6021 | } |
6022 | ||
4fa6811b HMH |
6023 | #define str_led_status(s) \ |
6024 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
6025 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 6026 | |
887965e6 | 6027 | static int led_read(struct seq_file *m) |
1da177e4 | 6028 | { |
78f81cc4 | 6029 | if (!led_supported) { |
887965e6 AD |
6030 | seq_printf(m, "status:\t\tnot supported\n"); |
6031 | return 0; | |
78f81cc4 | 6032 | } |
887965e6 | 6033 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 6034 | |
efa27145 | 6035 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
6036 | /* 570 */ |
6037 | int i, status; | |
6038 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
6039 | status = led_get_status(i); |
6040 | if (status < 0) | |
78f81cc4 | 6041 | return -EIO; |
887965e6 | 6042 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 6043 | i, str_led_status(status)); |
78f81cc4 BD |
6044 | } |
6045 | } | |
6046 | ||
5cac62ac | 6047 | seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 6048 | |
887965e6 | 6049 | return 0; |
1da177e4 LT |
6050 | } |
6051 | ||
78f81cc4 | 6052 | static int led_write(char *buf) |
1da177e4 LT |
6053 | { |
6054 | char *cmd; | |
4fa6811b HMH |
6055 | int led, rc; |
6056 | enum led_status_t s; | |
78f81cc4 BD |
6057 | |
6058 | if (!led_supported) | |
6059 | return -ENODEV; | |
1da177e4 LT |
6060 | |
6061 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 6062 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
6063 | return -EINVAL; |
6064 | ||
edf2d778 AL |
6065 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
6066 | tpacpi_leds[led].led < 0) | |
6067 | return -ENODEV; | |
6068 | ||
78f81cc4 | 6069 | if (strstr(cmd, "off")) { |
4fa6811b | 6070 | s = TPACPI_LED_OFF; |
1da177e4 | 6071 | } else if (strstr(cmd, "on")) { |
4fa6811b | 6072 | s = TPACPI_LED_ON; |
78f81cc4 | 6073 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 6074 | s = TPACPI_LED_BLINK; |
78f81cc4 | 6075 | } else { |
4fa6811b | 6076 | return -EINVAL; |
78f81cc4 | 6077 | } |
4fa6811b HMH |
6078 | |
6079 | rc = led_set_status(led, s); | |
6080 | if (rc < 0) | |
6081 | return rc; | |
78f81cc4 BD |
6082 | } |
6083 | ||
6084 | return 0; | |
6085 | } | |
6086 | ||
a5763f22 HMH |
6087 | static struct ibm_struct led_driver_data = { |
6088 | .name = "led", | |
6089 | .read = led_read, | |
6090 | .write = led_write, | |
af116101 | 6091 | .exit = led_exit, |
a5763f22 HMH |
6092 | }; |
6093 | ||
56b6aeb0 HMH |
6094 | /************************************************************************* |
6095 | * Beep subdriver | |
6096 | */ | |
6097 | ||
e0c7dfe7 | 6098 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 6099 | |
60201732 HMH |
6100 | #define TPACPI_BEEP_Q1 0x0001 |
6101 | ||
6102 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
6103 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
6104 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
6105 | }; | |
6106 | ||
a5763f22 | 6107 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 6108 | { |
60201732 HMH |
6109 | unsigned long quirks; |
6110 | ||
fe08bc4b HMH |
6111 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
6112 | ||
e0c7dfe7 | 6113 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 6114 | |
fe08bc4b HMH |
6115 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
6116 | str_supported(beep_handle != NULL)); | |
6117 | ||
60201732 HMH |
6118 | quirks = tpacpi_check_quirks(beep_quirk_table, |
6119 | ARRAY_SIZE(beep_quirk_table)); | |
6120 | ||
6121 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
6122 | ||
72a979f0 | 6123 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
6124 | } |
6125 | ||
887965e6 | 6126 | static int beep_read(struct seq_file *m) |
78f81cc4 | 6127 | { |
78f81cc4 | 6128 | if (!beep_handle) |
887965e6 | 6129 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 6130 | else { |
887965e6 AD |
6131 | seq_printf(m, "status:\t\tsupported\n"); |
6132 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
6133 | } |
6134 | ||
887965e6 | 6135 | return 0; |
78f81cc4 BD |
6136 | } |
6137 | ||
6138 | static int beep_write(char *buf) | |
6139 | { | |
6140 | char *cmd; | |
6141 | int beep_cmd; | |
6142 | ||
6143 | if (!beep_handle) | |
6144 | return -ENODEV; | |
6145 | ||
6146 | while ((cmd = next_cmd(&buf))) { | |
6147 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
6148 | beep_cmd >= 0 && beep_cmd <= 17) { | |
6149 | /* beep_cmd set */ | |
6150 | } else | |
6151 | return -EINVAL; | |
60201732 HMH |
6152 | if (tp_features.beep_needs_two_args) { |
6153 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
6154 | beep_cmd, 0)) | |
6155 | return -EIO; | |
6156 | } else { | |
6157 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
6158 | beep_cmd)) | |
6159 | return -EIO; | |
6160 | } | |
78f81cc4 BD |
6161 | } |
6162 | ||
6163 | return 0; | |
6164 | } | |
6165 | ||
a5763f22 HMH |
6166 | static struct ibm_struct beep_driver_data = { |
6167 | .name = "beep", | |
6168 | .read = beep_read, | |
6169 | .write = beep_write, | |
6170 | }; | |
6171 | ||
56b6aeb0 HMH |
6172 | /************************************************************************* |
6173 | * Thermal subdriver | |
6174 | */ | |
78f81cc4 | 6175 | |
f74a27d4 HMH |
6176 | enum thermal_access_mode { |
6177 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
6178 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
6179 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
6180 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
6181 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
6182 | }; | |
6183 | ||
6184 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
6185 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
6186 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
6187 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
6188 | |
6189 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
6190 | }; |
6191 | ||
9ebd9e83 | 6192 | |
f74a27d4 HMH |
6193 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
6194 | struct ibm_thermal_sensors_struct { | |
6195 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
6196 | }; | |
6197 | ||
a26f878a | 6198 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 6199 | |
b21a15f6 HMH |
6200 | /* idx is zero-based */ |
6201 | static int thermal_get_sensor(int idx, s32 *value) | |
6202 | { | |
6203 | int t; | |
6204 | s8 tmp; | |
6205 | char tmpi[5]; | |
6206 | ||
6207 | t = TP_EC_THERMAL_TMP0; | |
6208 | ||
6209 | switch (thermal_read_mode) { | |
6210 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
6211 | case TPACPI_THERMAL_TPEC_16: | |
6212 | if (idx >= 8 && idx <= 15) { | |
6213 | t = TP_EC_THERMAL_TMP8; | |
6214 | idx -= 8; | |
6215 | } | |
6216 | /* fallthrough */ | |
6217 | #endif | |
6218 | case TPACPI_THERMAL_TPEC_8: | |
6219 | if (idx <= 7) { | |
6220 | if (!acpi_ec_read(t + idx, &tmp)) | |
6221 | return -EIO; | |
6222 | *value = tmp * 1000; | |
6223 | return 0; | |
6224 | } | |
6225 | break; | |
6226 | ||
6227 | case TPACPI_THERMAL_ACPI_UPDT: | |
6228 | if (idx <= 7) { | |
6229 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6230 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
6231 | return -EIO; | |
6232 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6233 | return -EIO; | |
6234 | *value = (t - 2732) * 100; | |
6235 | return 0; | |
6236 | } | |
6237 | break; | |
6238 | ||
6239 | case TPACPI_THERMAL_ACPI_TMP07: | |
6240 | if (idx <= 7) { | |
6241 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6242 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6243 | return -EIO; | |
6244 | if (t > 127 || t < -127) | |
6245 | t = TP_EC_THERMAL_TMP_NA; | |
6246 | *value = t * 1000; | |
6247 | return 0; | |
6248 | } | |
6249 | break; | |
6250 | ||
6251 | case TPACPI_THERMAL_NONE: | |
6252 | default: | |
6253 | return -ENOSYS; | |
6254 | } | |
6255 | ||
6256 | return -EINVAL; | |
6257 | } | |
6258 | ||
6259 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
6260 | { | |
6261 | int res, i; | |
6262 | int n; | |
6263 | ||
6264 | n = 8; | |
6265 | i = 0; | |
6266 | ||
6267 | if (!s) | |
6268 | return -EINVAL; | |
6269 | ||
6270 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
6271 | n = 16; | |
6272 | ||
35ff8b9f | 6273 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
6274 | res = thermal_get_sensor(i, &s->temp[i]); |
6275 | if (res) | |
6276 | return res; | |
6277 | } | |
6278 | ||
6279 | return n; | |
6280 | } | |
f74a27d4 | 6281 | |
9ebd9e83 HMH |
6282 | static void thermal_dump_all_sensors(void) |
6283 | { | |
6284 | int n, i; | |
6285 | struct ibm_thermal_sensors_struct t; | |
6286 | ||
6287 | n = thermal_get_sensors(&t); | |
6288 | if (n <= 0) | |
6289 | return; | |
6290 | ||
0978e012 | 6291 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
6292 | |
6293 | for (i = 0; i < n; i++) { | |
6294 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 6295 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 6296 | else |
0978e012 | 6297 | pr_cont(" N/A"); |
9ebd9e83 HMH |
6298 | } |
6299 | ||
0978e012 | 6300 | pr_cont("\n"); |
9ebd9e83 HMH |
6301 | } |
6302 | ||
2c37aa4e HMH |
6303 | /* sysfs temp##_input -------------------------------------------------- */ |
6304 | ||
6305 | static ssize_t thermal_temp_input_show(struct device *dev, | |
6306 | struct device_attribute *attr, | |
6307 | char *buf) | |
6308 | { | |
6309 | struct sensor_device_attribute *sensor_attr = | |
6310 | to_sensor_dev_attr(attr); | |
6311 | int idx = sensor_attr->index; | |
6312 | s32 value; | |
6313 | int res; | |
6314 | ||
6315 | res = thermal_get_sensor(idx, &value); | |
6316 | if (res) | |
6317 | return res; | |
9ebd9e83 | 6318 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
6319 | return -ENXIO; |
6320 | ||
6321 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
6322 | } | |
6323 | ||
6324 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
6325 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
6326 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
6327 | |
6328 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
6329 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
6330 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
6331 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
6332 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
6333 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
6334 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
6335 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
6336 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
6337 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
6338 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
6339 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
6340 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
6341 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
6342 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
6343 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
6344 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
6345 | }; | |
6346 | ||
6347 | #define THERMAL_ATTRS(X) \ | |
6348 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
6349 | ||
6350 | static struct attribute *thermal_temp_input_attr[] = { | |
6351 | THERMAL_ATTRS(8), | |
6352 | THERMAL_ATTRS(9), | |
6353 | THERMAL_ATTRS(10), | |
6354 | THERMAL_ATTRS(11), | |
6355 | THERMAL_ATTRS(12), | |
6356 | THERMAL_ATTRS(13), | |
6357 | THERMAL_ATTRS(14), | |
6358 | THERMAL_ATTRS(15), | |
6359 | THERMAL_ATTRS(0), | |
6360 | THERMAL_ATTRS(1), | |
6361 | THERMAL_ATTRS(2), | |
6362 | THERMAL_ATTRS(3), | |
6363 | THERMAL_ATTRS(4), | |
6364 | THERMAL_ATTRS(5), | |
6365 | THERMAL_ATTRS(6), | |
6366 | THERMAL_ATTRS(7), | |
6367 | NULL | |
6368 | }; | |
6369 | ||
6370 | static const struct attribute_group thermal_temp_input16_group = { | |
6371 | .attrs = thermal_temp_input_attr | |
6372 | }; | |
6373 | ||
6374 | static const struct attribute_group thermal_temp_input8_group = { | |
6375 | .attrs = &thermal_temp_input_attr[8] | |
6376 | }; | |
6377 | ||
6378 | #undef THERMAL_SENSOR_ATTR_TEMP | |
6379 | #undef THERMAL_ATTRS | |
6380 | ||
6381 | /* --------------------------------------------------------------------- */ | |
6382 | ||
a5763f22 | 6383 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6384 | { |
60eb0b35 HMH |
6385 | u8 t, ta1, ta2; |
6386 | int i; | |
5fba344c | 6387 | int acpi_tmp7; |
2c37aa4e | 6388 | int res; |
5fba344c | 6389 | |
fe08bc4b HMH |
6390 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
6391 | ||
5fba344c | 6392 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 6393 | |
3d6f99ca | 6394 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
6395 | /* |
6396 | * Direct EC access mode: sensors at registers | |
6397 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
6398 | * non-implemented, thermal sensors return 0x80 when | |
6399 | * not available | |
6400 | */ | |
78f81cc4 | 6401 | |
60eb0b35 HMH |
6402 | ta1 = ta2 = 0; |
6403 | for (i = 0; i < 8; i++) { | |
04cc862c | 6404 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
6405 | ta1 |= t; |
6406 | } else { | |
6407 | ta1 = 0; | |
6408 | break; | |
6409 | } | |
04cc862c | 6410 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
6411 | ta2 |= t; |
6412 | } else { | |
6413 | ta1 = 0; | |
6414 | break; | |
6415 | } | |
6416 | } | |
6417 | if (ta1 == 0) { | |
6418 | /* This is sheer paranoia, but we handle it anyway */ | |
6419 | if (acpi_tmp7) { | |
5cac62ac | 6420 | pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n"); |
efa27145 | 6421 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6422 | } else { |
5cac62ac | 6423 | pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n"); |
efa27145 | 6424 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6425 | } |
6426 | } else { | |
6427 | thermal_read_mode = | |
6428 | (ta2 != 0) ? | |
efa27145 | 6429 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
6430 | } |
6431 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6432 | if (tpacpi_is_ibm() && |
6433 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6434 | /* 600e/x, 770e, 770x */ |
efa27145 | 6435 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6436 | } else { |
e28393c0 | 6437 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6438 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6439 | } |
6440 | } else { | |
6441 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6442 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6443 | } |
78f81cc4 | 6444 | |
fe08bc4b HMH |
6445 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6446 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6447 | thermal_read_mode); | |
6448 | ||
35ff8b9f | 6449 | switch (thermal_read_mode) { |
2c37aa4e | 6450 | case TPACPI_THERMAL_TPEC_16: |
6b99e356 | 6451 | res = sysfs_create_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6452 | &thermal_temp_input16_group); |
6453 | if (res) | |
6454 | return res; | |
6455 | break; | |
6456 | case TPACPI_THERMAL_TPEC_8: | |
6457 | case TPACPI_THERMAL_ACPI_TMP07: | |
6458 | case TPACPI_THERMAL_ACPI_UPDT: | |
6b99e356 | 6459 | res = sysfs_create_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6460 | &thermal_temp_input8_group); |
6461 | if (res) | |
6462 | return res; | |
6463 | break; | |
6464 | case TPACPI_THERMAL_NONE: | |
6465 | default: | |
6466 | return 1; | |
6467 | } | |
6468 | ||
6469 | return 0; | |
6470 | } | |
6471 | ||
6472 | static void thermal_exit(void) | |
6473 | { | |
35ff8b9f | 6474 | switch (thermal_read_mode) { |
2c37aa4e | 6475 | case TPACPI_THERMAL_TPEC_16: |
6b99e356 | 6476 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6477 | &thermal_temp_input16_group); |
6478 | break; | |
6479 | case TPACPI_THERMAL_TPEC_8: | |
6480 | case TPACPI_THERMAL_ACPI_TMP07: | |
6481 | case TPACPI_THERMAL_ACPI_UPDT: | |
6b99e356 | 6482 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
f04d5e01 | 6483 | &thermal_temp_input8_group); |
2c37aa4e HMH |
6484 | break; |
6485 | case TPACPI_THERMAL_NONE: | |
6486 | default: | |
6487 | break; | |
6488 | } | |
78f81cc4 BD |
6489 | } |
6490 | ||
887965e6 | 6491 | static int thermal_read(struct seq_file *m) |
a26f878a | 6492 | { |
a26f878a HMH |
6493 | int n, i; |
6494 | struct ibm_thermal_sensors_struct t; | |
6495 | ||
6496 | n = thermal_get_sensors(&t); | |
6497 | if (unlikely(n < 0)) | |
6498 | return n; | |
6499 | ||
887965e6 | 6500 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6501 | |
6502 | if (n > 0) { | |
6503 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6504 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6505 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6506 | } else |
887965e6 | 6507 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6508 | |
887965e6 | 6509 | return 0; |
78f81cc4 BD |
6510 | } |
6511 | ||
a5763f22 HMH |
6512 | static struct ibm_struct thermal_driver_data = { |
6513 | .name = "thermal", | |
6514 | .read = thermal_read, | |
2c37aa4e | 6515 | .exit = thermal_exit, |
a5763f22 HMH |
6516 | }; |
6517 | ||
56b6aeb0 HMH |
6518 | /************************************************************************* |
6519 | * Backlight/brightness subdriver | |
6520 | */ | |
6521 | ||
f74a27d4 HMH |
6522 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6523 | ||
0e501834 HMH |
6524 | /* |
6525 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6526 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6527 | * | |
6528 | * EC HBRV (0x31) has the following layout | |
6529 | * Bit 7: unknown function | |
6530 | * Bit 6: unknown function | |
6531 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6532 | * Bit 4: must be set to zero to avoid problems | |
6533 | * Bit 3-0: backlight brightness level | |
6534 | * | |
6535 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6536 | * |
6537 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6538 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6539 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6540 | */ |
6541 | ||
e11aecf1 HMH |
6542 | enum { |
6543 | TP_EC_BACKLIGHT = 0x31, | |
6544 | ||
6545 | /* TP_EC_BACKLIGHT bitmasks */ | |
6546 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6547 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6548 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6549 | }; | |
6550 | ||
0e501834 HMH |
6551 | enum tpacpi_brightness_access_mode { |
6552 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6553 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6554 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6555 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6556 | TPACPI_BRGHT_MODE_MAX | |
6557 | }; | |
6558 | ||
94954cc6 | 6559 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6560 | |
6561 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6562 | TPACPI_BRGHT_MODE_MAX; | |
6563 | ||
f74a27d4 HMH |
6564 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6565 | ||
b21a15f6 | 6566 | static struct mutex brightness_mutex; |
56b6aeb0 | 6567 | |
0e501834 HMH |
6568 | /* NVRAM brightness access, |
6569 | * call with brightness_mutex held! */ | |
6570 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6571 | { |
0e501834 | 6572 | u8 lnvram; |
b21a15f6 | 6573 | |
0e501834 HMH |
6574 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6575 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6576 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6577 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6578 | |
6579 | return lnvram; | |
6580 | } | |
6581 | ||
6582 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6583 | { | |
6584 | u8 lec = 0; | |
6585 | u8 b_nvram; | |
6586 | ||
6587 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6588 | return; | |
6589 | ||
6590 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6591 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6592 | ||
6593 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6594 | return; | |
6595 | ||
6596 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6597 | goto unlock; | |
6598 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6599 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6600 | ||
6601 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6602 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6603 | /* NVRAM needs update */ | |
6604 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6605 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6606 | b_nvram |= lec; | |
6607 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6608 | dbg_printk(TPACPI_DBG_BRGHT, | |
6609 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6610 | (unsigned int) lec, (unsigned int) b_nvram); | |
6611 | } else | |
6612 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6613 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6614 | (unsigned int) lec, (unsigned int) b_nvram); | |
6615 | ||
6616 | unlock: | |
6617 | mutex_unlock(&brightness_mutex); | |
6618 | } | |
6619 | ||
6620 | ||
6621 | /* call with brightness_mutex held! */ | |
6622 | static int tpacpi_brightness_get_raw(int *status) | |
6623 | { | |
6624 | u8 lec = 0; | |
6625 | ||
6626 | switch (brightness_mode) { | |
6627 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6628 | *status = tpacpi_brightness_nvram_get(); | |
6629 | return 0; | |
6630 | case TPACPI_BRGHT_MODE_EC: | |
6631 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6632 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6633 | return -EIO; |
0e501834 HMH |
6634 | *status = lec; |
6635 | return 0; | |
6636 | default: | |
6637 | return -ENXIO; | |
b21a15f6 | 6638 | } |
0e501834 HMH |
6639 | } |
6640 | ||
6641 | /* call with brightness_mutex held! */ | |
6642 | /* do NOT call with illegal backlight level value */ | |
6643 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6644 | { | |
6645 | u8 lec = 0; | |
6646 | ||
6647 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6648 | return -EIO; | |
6649 | ||
6650 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6651 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6652 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6653 | return -EIO; | |
6654 | ||
6655 | return 0; | |
6656 | } | |
6657 | ||
6658 | /* call with brightness_mutex held! */ | |
6659 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6660 | { | |
6661 | int cmos_cmd, inc; | |
6662 | unsigned int current_value, i; | |
6663 | ||
6664 | current_value = tpacpi_brightness_nvram_get(); | |
6665 | ||
6666 | if (value == current_value) | |
6667 | return 0; | |
6668 | ||
6669 | cmos_cmd = (value > current_value) ? | |
6670 | TP_CMOS_BRIGHTNESS_UP : | |
6671 | TP_CMOS_BRIGHTNESS_DOWN; | |
6672 | inc = (value > current_value) ? 1 : -1; | |
6673 | ||
6674 | for (i = current_value; i != value; i += inc) | |
6675 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6676 | return -EIO; | |
b21a15f6 | 6677 | |
e11aecf1 | 6678 | return 0; |
b21a15f6 HMH |
6679 | } |
6680 | ||
6681 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6682 | static int brightness_set(unsigned int value) |
b21a15f6 | 6683 | { |
0e501834 | 6684 | int res; |
b21a15f6 | 6685 | |
bd3c7b9e | 6686 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6687 | return -EINVAL; |
6688 | ||
0e501834 HMH |
6689 | vdbg_printk(TPACPI_DBG_BRGHT, |
6690 | "set backlight level to %d\n", value); | |
6691 | ||
7646ea88 | 6692 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6693 | if (res < 0) |
6694 | return res; | |
6695 | ||
0e501834 HMH |
6696 | switch (brightness_mode) { |
6697 | case TPACPI_BRGHT_MODE_EC: | |
6698 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6699 | res = tpacpi_brightness_set_ec(value); | |
6700 | break; | |
6701 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6702 | res = tpacpi_brightness_set_ucmsstep(value); | |
6703 | break; | |
6704 | default: | |
6705 | res = -ENXIO; | |
b21a15f6 HMH |
6706 | } |
6707 | ||
b21a15f6 HMH |
6708 | mutex_unlock(&brightness_mutex); |
6709 | return res; | |
6710 | } | |
6711 | ||
6712 | /* sysfs backlight class ----------------------------------------------- */ | |
6713 | ||
6714 | static int brightness_update_status(struct backlight_device *bd) | |
6715 | { | |
0e501834 | 6716 | unsigned int level = |
b21a15f6 HMH |
6717 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6718 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6719 | bd->props.brightness : 0; |
6720 | ||
6721 | dbg_printk(TPACPI_DBG_BRGHT, | |
6722 | "backlight: attempt to set level to %d\n", | |
6723 | level); | |
6724 | ||
6725 | /* it is the backlight class's job (caller) to handle | |
6726 | * EINTR and other errors properly */ | |
6727 | return brightness_set(level); | |
b21a15f6 HMH |
6728 | } |
6729 | ||
e11aecf1 | 6730 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6731 | { |
e11aecf1 | 6732 | int status, res; |
a3f104c0 | 6733 | |
0e501834 | 6734 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6735 | if (res < 0) |
0e501834 HMH |
6736 | return 0; |
6737 | ||
6738 | res = tpacpi_brightness_get_raw(&status); | |
6739 | ||
6740 | mutex_unlock(&brightness_mutex); | |
6741 | ||
6742 | if (res < 0) | |
6743 | return 0; | |
e11e211a | 6744 | |
e11aecf1 | 6745 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6746 | } |
6747 | ||
347a2686 HMH |
6748 | static void tpacpi_brightness_notify_change(void) |
6749 | { | |
6750 | backlight_force_update(ibm_backlight_device, | |
6751 | BACKLIGHT_UPDATE_HOTKEY); | |
6752 | } | |
6753 | ||
acc2472e | 6754 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6755 | .get_brightness = brightness_get, |
6756 | .update_status = brightness_update_status, | |
56b6aeb0 | 6757 | }; |
e11e211a | 6758 | |
b21a15f6 | 6759 | /* --------------------------------------------------------------------- */ |
e11e211a | 6760 | |
122f2672 HMH |
6761 | /* |
6762 | * Call _BCL method of video device. On some ThinkPads this will | |
6763 | * switch the firmware to the ACPI brightness control mode. | |
6764 | */ | |
6765 | ||
77775838 HMH |
6766 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6767 | { | |
6768 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6769 | union acpi_object *obj; | |
46445b6b | 6770 | struct acpi_device *device, *child; |
77775838 HMH |
6771 | int rc; |
6772 | ||
46445b6b AL |
6773 | if (acpi_bus_get_device(handle, &device)) |
6774 | return 0; | |
6775 | ||
6776 | rc = 0; | |
6777 | list_for_each_entry(child, &device->children, node) { | |
6778 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6779 | NULL, &buffer); | |
6780 | if (ACPI_FAILURE(status)) | |
6781 | continue; | |
6782 | ||
77775838 HMH |
6783 | obj = (union acpi_object *)buffer.pointer; |
6784 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6785 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6786 | TPACPI_MAIL); |
77775838 HMH |
6787 | rc = 0; |
6788 | } else { | |
6789 | rc = obj->package.count; | |
6790 | } | |
46445b6b | 6791 | break; |
77775838 HMH |
6792 | } |
6793 | ||
6794 | kfree(buffer.pointer); | |
6795 | return rc; | |
6796 | } | |
6797 | ||
77775838 HMH |
6798 | |
6799 | /* | |
6800 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6801 | */ | |
6802 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6803 | { | |
122f2672 | 6804 | acpi_handle video_device; |
77775838 | 6805 | int bcl_levels = 0; |
77775838 | 6806 | |
46445b6b | 6807 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6808 | if (video_device) |
6809 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6810 | |
122f2672 | 6811 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6812 | |
122f2672 | 6813 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6814 | } |
6815 | ||
59fe4fe3 HMH |
6816 | /* |
6817 | * These are only useful for models that have only one possibility | |
6818 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6819 | * these quirks. | |
6820 | */ | |
6821 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6822 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6823 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6824 | ||
6825 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6826 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6827 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6828 | ||
6da25bf5 | 6829 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6830 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6831 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6832 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6833 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6834 | ||
6da25bf5 | 6835 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6836 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6837 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6838 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6839 | |
6840 | /* Models with Intel GMA900 */ | |
6841 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6842 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6843 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6844 | }; | |
6845 | ||
77775838 HMH |
6846 | /* |
6847 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6848 | * and bright_maxlvl. | |
6849 | */ | |
6850 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6851 | { | |
6852 | unsigned int b; | |
6853 | ||
6854 | vdbg_printk(TPACPI_DBG_INIT, | |
6855 | "detecting firmware brightness interface capabilities\n"); | |
6856 | ||
6857 | /* we could run a quirks check here (same table used by | |
6858 | * brightness_init) if needed */ | |
6859 | ||
6860 | /* | |
6861 | * We always attempt to detect acpi support, so as to switch | |
6862 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6863 | * going to publish a backlight interface | |
6864 | */ | |
6865 | b = tpacpi_check_std_acpi_brightness_support(); | |
6866 | switch (b) { | |
6867 | case 16: | |
6868 | bright_maxlvl = 15; | |
77775838 HMH |
6869 | break; |
6870 | case 8: | |
6871 | case 0: | |
6872 | bright_maxlvl = 7; | |
77775838 HMH |
6873 | break; |
6874 | default: | |
77775838 HMH |
6875 | tp_features.bright_unkfw = 1; |
6876 | bright_maxlvl = b - 1; | |
6877 | } | |
15c75626 | 6878 | pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); |
77775838 HMH |
6879 | } |
6880 | ||
a5763f22 | 6881 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6882 | { |
a19a6ee6 | 6883 | struct backlight_properties props; |
56b6aeb0 | 6884 | int b; |
59fe4fe3 | 6885 | unsigned long quirks; |
56b6aeb0 | 6886 | |
fe08bc4b HMH |
6887 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6888 | ||
f432255e HMH |
6889 | mutex_init(&brightness_mutex); |
6890 | ||
59fe4fe3 HMH |
6891 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6892 | ARRAY_SIZE(brightness_quirk_table)); | |
6893 | ||
77775838 HMH |
6894 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6895 | ||
6896 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6897 | if (tp_features.bright_unkfw) | |
6898 | return 1; | |
2dba1b5d | 6899 | |
b5972796 | 6900 | if (!brightness_enable) { |
0e501834 | 6901 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 6902 | "brightness support disabled by module parameter\n"); |
b5972796 HMH |
6903 | return 1; |
6904 | } | |
6905 | ||
b33c6ce5 | 6906 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 6907 | if (brightness_enable > 1) { |
5cac62ac | 6908 | pr_info("Standard ACPI backlight interface available, not loading native one\n"); |
217f0963 HMH |
6909 | return 1; |
6910 | } else if (brightness_enable == 1) { | |
5cac62ac | 6911 | pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6912 | return 1; |
6913 | } | |
6914 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
5cac62ac | 6915 | pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n"); |
217f0963 HMH |
6916 | } |
6917 | ||
0e501834 HMH |
6918 | /* |
6919 | * Check for module parameter bogosity, note that we | |
6920 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6921 | * able to detect "unspecified" | |
6922 | */ | |
6923 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6924 | return -EINVAL; | |
24d3b774 | 6925 | |
0e501834 HMH |
6926 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6927 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6928 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6929 | if (quirks & TPACPI_BRGHT_Q_EC) |
6930 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6931 | else | |
0e501834 | 6932 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6933 | |
0e501834 | 6934 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6935 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6936 | brightness_mode); |
6937 | } | |
24d3b774 | 6938 | |
d7880f10 | 6939 | /* Safety */ |
e28393c0 | 6940 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6941 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6942 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6943 | return -EINVAL; | |
6944 | ||
0e501834 | 6945 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6946 | return 1; |
56b6aeb0 | 6947 | |
a19a6ee6 | 6948 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6949 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6950 | props.max_brightness = bright_maxlvl; |
6951 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6952 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6953 | NULL, NULL, | |
6954 | &ibm_backlight_data, | |
6955 | &props); | |
56b6aeb0 | 6956 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6957 | int rc = PTR_ERR(ibm_backlight_device); |
6958 | ibm_backlight_device = NULL; | |
0978e012 | 6959 | pr_err("Could not register backlight device\n"); |
435c47e2 | 6960 | return rc; |
56b6aeb0 | 6961 | } |
0e501834 HMH |
6962 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6963 | "brightness is supported\n"); | |
56b6aeb0 | 6964 | |
59fe4fe3 | 6965 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
5cac62ac AS |
6966 | pr_notice("brightness: will use unverified default: brightness_mode=%d\n", |
6967 | brightness_mode); | |
6968 | pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n", | |
6969 | TPACPI_MAIL); | |
59fe4fe3 HMH |
6970 | } |
6971 | ||
7d9745cf HMH |
6972 | /* Added by mistake in early 2007. Probably useless, but it could |
6973 | * be working around some unknown firmware problem where the value | |
6974 | * read at startup doesn't match the real hardware state... so leave | |
6975 | * it in place just in case */ | |
56b6aeb0 HMH |
6976 | backlight_update_status(ibm_backlight_device); |
6977 | ||
347a2686 | 6978 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 6979 | "brightness: registering brightness hotkeys as change notification\n"); |
347a2686 HMH |
6980 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
6981 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6982 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6983 | return 0; |
6984 | } | |
6985 | ||
fd3c3a42 | 6986 | static void brightness_suspend(void) |
0e501834 HMH |
6987 | { |
6988 | tpacpi_brightness_checkpoint_nvram(); | |
6989 | } | |
6990 | ||
6991 | static void brightness_shutdown(void) | |
6992 | { | |
6993 | tpacpi_brightness_checkpoint_nvram(); | |
6994 | } | |
6995 | ||
56b6aeb0 HMH |
6996 | static void brightness_exit(void) |
6997 | { | |
6998 | if (ibm_backlight_device) { | |
0e501834 | 6999 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 7000 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 7001 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 7002 | } |
0e501834 HMH |
7003 | |
7004 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
7005 | } |
7006 | ||
887965e6 | 7007 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 7008 | { |
56b6aeb0 HMH |
7009 | int level; |
7010 | ||
35ff8b9f HMH |
7011 | level = brightness_get(NULL); |
7012 | if (level < 0) { | |
887965e6 | 7013 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 7014 | } else { |
887965e6 AD |
7015 | seq_printf(m, "level:\t\t%d\n", level); |
7016 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
7017 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
7018 | bright_maxlvl); | |
56b6aeb0 HMH |
7019 | } |
7020 | ||
887965e6 | 7021 | return 0; |
56b6aeb0 HMH |
7022 | } |
7023 | ||
8acb0250 HM |
7024 | static int brightness_write(char *buf) |
7025 | { | |
7026 | int level; | |
4273af8d | 7027 | int rc; |
1da177e4 | 7028 | char *cmd; |
1da177e4 | 7029 | |
4273af8d HMH |
7030 | level = brightness_get(NULL); |
7031 | if (level < 0) | |
7032 | return level; | |
78f81cc4 | 7033 | |
4273af8d | 7034 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 7035 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 7036 | if (level < bright_maxlvl) |
4273af8d | 7037 | level++; |
78f81cc4 | 7038 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
7039 | if (level > 0) |
7040 | level--; | |
7041 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 7042 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 7043 | /* new level set */ |
78f81cc4 BD |
7044 | } else |
7045 | return -EINVAL; | |
78f81cc4 BD |
7046 | } |
7047 | ||
0e501834 HMH |
7048 | tpacpi_disclose_usertask("procfs brightness", |
7049 | "set level to %d\n", level); | |
7050 | ||
4273af8d HMH |
7051 | /* |
7052 | * Now we know what the final level should be, so we try to set it. | |
7053 | * Doing it this way makes the syscall restartable in case of EINTR | |
7054 | */ | |
7055 | rc = brightness_set(level); | |
347a2686 HMH |
7056 | if (!rc && ibm_backlight_device) |
7057 | backlight_force_update(ibm_backlight_device, | |
7058 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 7059 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7060 | } |
7061 | ||
a5763f22 HMH |
7062 | static struct ibm_struct brightness_driver_data = { |
7063 | .name = "brightness", | |
7064 | .read = brightness_read, | |
7065 | .write = brightness_write, | |
7066 | .exit = brightness_exit, | |
0e501834 HMH |
7067 | .suspend = brightness_suspend, |
7068 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
7069 | }; |
7070 | ||
56b6aeb0 HMH |
7071 | /************************************************************************* |
7072 | * Volume subdriver | |
7073 | */ | |
fb87a811 | 7074 | |
329e4e18 HMH |
7075 | /* |
7076 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
7077 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
7078 | * | |
7079 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
7080 | * ThinkPads only implement the MUTE gate. | |
7081 | * | |
7082 | * EC register 0x30 | |
7083 | * Bit 6: MUTE (1 mutes sound) | |
7084 | * Bit 3-0: Volume | |
7085 | * Other bits should be zero as far as we know. | |
7086 | * | |
7087 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
7088 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
7089 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
7090 | * and we leave them unchanged. | |
9a417ec0 AL |
7091 | * |
7092 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
7093 | * in response to user input. Unfortunately, this rarely works well. | |
7094 | * The laptop changes the state of its internal MUTE gate and, on some | |
7095 | * models, sends KEY_MUTE, causing any user code that responds to the | |
7096 | * mute button to get confused. The hardware MUTE gate is also | |
7097 | * unnecessary, since user code can handle the mute button without | |
7098 | * kernel or EC help. | |
7099 | * | |
7100 | * To avoid confusing userspace, we simply disable all EC-based mute | |
7101 | * and volume controls when possible. | |
329e4e18 HMH |
7102 | */ |
7103 | ||
ff850c33 HMH |
7104 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
7105 | ||
0d204c34 HMH |
7106 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
7107 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
7108 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
7109 | ||
cab66613 TI |
7110 | #if SNDRV_CARDS <= 32 |
7111 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
7112 | #else | |
7113 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
7114 | #endif | |
7115 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 7116 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 7117 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
7118 | |
7119 | struct tpacpi_alsa_data { | |
7120 | struct snd_card *card; | |
7121 | struct snd_ctl_elem_id *ctl_mute_id; | |
7122 | struct snd_ctl_elem_id *ctl_vol_id; | |
7123 | }; | |
7124 | ||
7125 | static struct snd_card *alsa_card; | |
7126 | ||
329e4e18 HMH |
7127 | enum { |
7128 | TP_EC_AUDIO = 0x30, | |
7129 | ||
7130 | /* TP_EC_AUDIO bits */ | |
7131 | TP_EC_AUDIO_MUTESW = 6, | |
7132 | ||
7133 | /* TP_EC_AUDIO bitmasks */ | |
7134 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
7135 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
7136 | ||
7137 | /* Maximum volume */ | |
7138 | TP_EC_VOLUME_MAX = 14, | |
7139 | }; | |
7140 | ||
7141 | enum tpacpi_volume_access_mode { | |
7142 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
7143 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
7144 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
7145 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
7146 | TPACPI_VOL_MODE_MAX | |
7147 | }; | |
7148 | ||
a112ceee HMH |
7149 | enum tpacpi_volume_capabilities { |
7150 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
7151 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
7152 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
7153 | TPACPI_VOL_CAP_MAX | |
7154 | }; | |
7155 | ||
9a417ec0 AL |
7156 | enum tpacpi_mute_btn_mode { |
7157 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
7158 | /* We don't know what mode 1 is. */ | |
7159 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
7160 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
7161 | }; | |
7162 | ||
329e4e18 HMH |
7163 | static enum tpacpi_volume_access_mode volume_mode = |
7164 | TPACPI_VOL_MODE_MAX; | |
7165 | ||
a112ceee | 7166 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 7167 | static bool volume_control_allowed; |
9a417ec0 AL |
7168 | static bool software_mute_requested = true; |
7169 | static bool software_mute_active; | |
7170 | static int software_mute_orig_mode; | |
f74a27d4 | 7171 | |
329e4e18 HMH |
7172 | /* |
7173 | * Used to syncronize writers to TP_EC_AUDIO and | |
7174 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
7175 | */ | |
7176 | static struct mutex volume_mutex; | |
7177 | ||
7178 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 7179 | { |
329e4e18 HMH |
7180 | u8 lec = 0; |
7181 | u8 b_nvram; | |
a112ceee | 7182 | u8 ec_mask; |
329e4e18 HMH |
7183 | |
7184 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
7185 | return; | |
c7ac6291 HMH |
7186 | if (!volume_control_allowed) |
7187 | return; | |
9a417ec0 AL |
7188 | if (software_mute_active) |
7189 | return; | |
329e4e18 HMH |
7190 | |
7191 | vdbg_printk(TPACPI_DBG_MIXER, | |
7192 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 7193 | |
a112ceee HMH |
7194 | if (tp_features.mixer_no_level_control) |
7195 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
7196 | else | |
7197 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
7198 | ||
329e4e18 HMH |
7199 | if (mutex_lock_killable(&volume_mutex) < 0) |
7200 | return; | |
7201 | ||
7202 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
7203 | goto unlock; | |
7204 | lec &= ec_mask; | |
7205 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
7206 | ||
7207 | if (lec != (b_nvram & ec_mask)) { | |
7208 | /* NVRAM needs update */ | |
7209 | b_nvram &= ~ec_mask; | |
7210 | b_nvram |= lec; | |
7211 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
7212 | dbg_printk(TPACPI_DBG_MIXER, | |
7213 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
7214 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 7215 | } else { |
329e4e18 HMH |
7216 | vdbg_printk(TPACPI_DBG_MIXER, |
7217 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
7218 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
7219 | } |
7220 | ||
329e4e18 HMH |
7221 | unlock: |
7222 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
7223 | } |
7224 | ||
329e4e18 | 7225 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 7226 | { |
329e4e18 | 7227 | u8 s; |
78f81cc4 | 7228 | |
329e4e18 HMH |
7229 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
7230 | return -EIO; | |
78f81cc4 | 7231 | |
329e4e18 | 7232 | *status = s; |
1da177e4 | 7233 | |
329e4e18 | 7234 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 7235 | |
329e4e18 HMH |
7236 | return 0; |
7237 | } | |
78f81cc4 | 7238 | |
329e4e18 HMH |
7239 | static int volume_get_status(u8 *status) |
7240 | { | |
7241 | return volume_get_status_ec(status); | |
7242 | } | |
78f81cc4 | 7243 | |
329e4e18 HMH |
7244 | static int volume_set_status_ec(const u8 status) |
7245 | { | |
7246 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
7247 | return -EIO; | |
78f81cc4 | 7248 | |
329e4e18 HMH |
7249 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
7250 | ||
9a417ec0 AL |
7251 | /* |
7252 | * On X200s, and possibly on others, it can take a while for | |
7253 | * reads to become correct. | |
7254 | */ | |
7255 | msleep(1); | |
7256 | ||
329e4e18 HMH |
7257 | return 0; |
7258 | } | |
7259 | ||
7260 | static int volume_set_status(const u8 status) | |
7261 | { | |
7262 | return volume_set_status_ec(status); | |
7263 | } | |
7264 | ||
88cc8377 HMH |
7265 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7266 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
7267 | { |
7268 | int rc; | |
7269 | u8 s, n; | |
7270 | ||
7271 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7272 | return -EINTR; | |
7273 | ||
7274 | rc = volume_get_status_ec(&s); | |
7275 | if (rc) | |
7276 | goto unlock; | |
7277 | ||
7278 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
7279 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
7280 | ||
88cc8377 | 7281 | if (n != s) { |
329e4e18 | 7282 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7283 | if (!rc) |
7284 | rc = 1; | |
7285 | } | |
329e4e18 HMH |
7286 | |
7287 | unlock: | |
7288 | mutex_unlock(&volume_mutex); | |
7289 | return rc; | |
7290 | } | |
7291 | ||
88cc8377 HMH |
7292 | static int volume_alsa_set_mute(const bool mute) |
7293 | { | |
7294 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
7295 | (mute) ? "" : "un"); | |
7296 | return __volume_set_mute_ec(mute); | |
7297 | } | |
7298 | ||
329e4e18 HMH |
7299 | static int volume_set_mute(const bool mute) |
7300 | { | |
88cc8377 HMH |
7301 | int rc; |
7302 | ||
329e4e18 HMH |
7303 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
7304 | (mute) ? "" : "un"); | |
88cc8377 HMH |
7305 | |
7306 | rc = __volume_set_mute_ec(mute); | |
7307 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
7308 | } |
7309 | ||
88cc8377 HMH |
7310 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7311 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
7312 | { |
7313 | int rc; | |
7314 | u8 s, n; | |
7315 | ||
7316 | if (vol > TP_EC_VOLUME_MAX) | |
7317 | return -EINVAL; | |
7318 | ||
7319 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7320 | return -EINTR; | |
7321 | ||
7322 | rc = volume_get_status_ec(&s); | |
7323 | if (rc) | |
7324 | goto unlock; | |
7325 | ||
7326 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
7327 | ||
88cc8377 | 7328 | if (n != s) { |
329e4e18 | 7329 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7330 | if (!rc) |
7331 | rc = 1; | |
7332 | } | |
329e4e18 HMH |
7333 | |
7334 | unlock: | |
7335 | mutex_unlock(&volume_mutex); | |
7336 | return rc; | |
7337 | } | |
7338 | ||
9a417ec0 AL |
7339 | static int volume_set_software_mute(bool startup) |
7340 | { | |
7341 | int result; | |
7342 | ||
7343 | if (!tpacpi_is_lenovo()) | |
7344 | return -ENODEV; | |
7345 | ||
7346 | if (startup) { | |
7347 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
7348 | "HAUM", "qd")) | |
7349 | return -EIO; | |
7350 | ||
7351 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7352 | "Initial HAUM setting was %d\n", | |
7353 | software_mute_orig_mode); | |
7354 | } | |
7355 | ||
7356 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
7357 | (int)TP_EC_MUTE_BTN_NONE)) | |
7358 | return -EIO; | |
7359 | ||
7360 | if (result != TP_EC_MUTE_BTN_NONE) | |
7361 | pr_warn("Unexpected SAUM result %d\n", | |
7362 | result); | |
7363 | ||
7364 | /* | |
7365 | * In software mute mode, the standard codec controls take | |
7366 | * precendence, so we unmute the ThinkPad HW switch at | |
7367 | * startup. Just on case there are SAUM-capable ThinkPads | |
7368 | * with level controls, set max HW volume as well. | |
7369 | */ | |
7370 | if (tp_features.mixer_no_level_control) | |
7371 | result = volume_set_mute(false); | |
7372 | else | |
7373 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
7374 | ||
7375 | if (result != 0) | |
7376 | pr_warn("Failed to unmute the HW mute switch\n"); | |
7377 | ||
7378 | return 0; | |
7379 | } | |
7380 | ||
7381 | static void volume_exit_software_mute(void) | |
7382 | { | |
7383 | int r; | |
7384 | ||
7385 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
7386 | || r != software_mute_orig_mode) | |
7387 | pr_warn("Failed to restore mute mode\n"); | |
7388 | } | |
7389 | ||
88cc8377 | 7390 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
7391 | { |
7392 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
7393 | "ALSA: trying to set volume level to %hu\n", vol); |
7394 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
7395 | } |
7396 | ||
0d204c34 HMH |
7397 | static void volume_alsa_notify_change(void) |
7398 | { | |
7399 | struct tpacpi_alsa_data *d; | |
7400 | ||
7401 | if (alsa_card && alsa_card->private_data) { | |
7402 | d = alsa_card->private_data; | |
7403 | if (d->ctl_mute_id) | |
7404 | snd_ctl_notify(alsa_card, | |
7405 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7406 | d->ctl_mute_id); | |
7407 | if (d->ctl_vol_id) | |
7408 | snd_ctl_notify(alsa_card, | |
7409 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7410 | d->ctl_vol_id); | |
7411 | } | |
7412 | } | |
7413 | ||
7414 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7415 | struct snd_ctl_elem_info *uinfo) | |
7416 | { | |
7417 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7418 | uinfo->count = 1; | |
7419 | uinfo->value.integer.min = 0; | |
7420 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7421 | return 0; | |
7422 | } | |
7423 | ||
7424 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7425 | struct snd_ctl_elem_value *ucontrol) | |
7426 | { | |
7427 | u8 s; | |
7428 | int rc; | |
7429 | ||
7430 | rc = volume_get_status(&s); | |
7431 | if (rc < 0) | |
7432 | return rc; | |
7433 | ||
7434 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7435 | return 0; | |
7436 | } | |
7437 | ||
7438 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7439 | struct snd_ctl_elem_value *ucontrol) | |
7440 | { | |
38e11cde HMH |
7441 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7442 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7443 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7444 | } |
7445 | ||
7446 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7447 | ||
7448 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7449 | struct snd_ctl_elem_value *ucontrol) | |
7450 | { | |
7451 | u8 s; | |
7452 | int rc; | |
7453 | ||
7454 | rc = volume_get_status(&s); | |
7455 | if (rc < 0) | |
7456 | return rc; | |
7457 | ||
7458 | ucontrol->value.integer.value[0] = | |
7459 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7460 | return 0; | |
7461 | } | |
7462 | ||
7463 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7464 | struct snd_ctl_elem_value *ucontrol) | |
7465 | { | |
38e11cde HMH |
7466 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7467 | ucontrol->value.integer.value[0] ? | |
7468 | "un" : ""); | |
88cc8377 | 7469 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7470 | } |
7471 | ||
c3aa4723 | 7472 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7473 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7474 | .name = "Console Playback Volume", | |
7475 | .index = 0, | |
7476 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7477 | .info = volume_alsa_vol_info, | |
7478 | .get = volume_alsa_vol_get, | |
7479 | }; | |
7480 | ||
c3aa4723 | 7481 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7482 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7483 | .name = "Console Playback Switch", | |
7484 | .index = 0, | |
7485 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7486 | .info = volume_alsa_mute_info, | |
7487 | .get = volume_alsa_mute_get, | |
7488 | }; | |
7489 | ||
fd3c3a42 | 7490 | static void volume_suspend(void) |
329e4e18 HMH |
7491 | { |
7492 | tpacpi_volume_checkpoint_nvram(); | |
7493 | } | |
7494 | ||
0d204c34 HMH |
7495 | static void volume_resume(void) |
7496 | { | |
9a417ec0 AL |
7497 | if (software_mute_active) { |
7498 | if (volume_set_software_mute(false) < 0) | |
7499 | pr_warn("Failed to restore software mute\n"); | |
7500 | } else { | |
7501 | volume_alsa_notify_change(); | |
7502 | } | |
0d204c34 HMH |
7503 | } |
7504 | ||
329e4e18 HMH |
7505 | static void volume_shutdown(void) |
7506 | { | |
7507 | tpacpi_volume_checkpoint_nvram(); | |
7508 | } | |
7509 | ||
7510 | static void volume_exit(void) | |
7511 | { | |
0d204c34 HMH |
7512 | if (alsa_card) { |
7513 | snd_card_free(alsa_card); | |
7514 | alsa_card = NULL; | |
7515 | } | |
7516 | ||
329e4e18 | 7517 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7518 | |
7519 | if (software_mute_active) | |
7520 | volume_exit_software_mute(); | |
329e4e18 HMH |
7521 | } |
7522 | ||
0d204c34 HMH |
7523 | static int __init volume_create_alsa_mixer(void) |
7524 | { | |
7525 | struct snd_card *card; | |
7526 | struct tpacpi_alsa_data *data; | |
7527 | struct snd_kcontrol *ctl_vol; | |
7528 | struct snd_kcontrol *ctl_mute; | |
7529 | int rc; | |
7530 | ||
89235e55 TI |
7531 | rc = snd_card_new(&tpacpi_pdev->dev, |
7532 | alsa_index, alsa_id, THIS_MODULE, | |
7533 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7534 | if (rc < 0 || !card) { |
0978e012 | 7535 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7536 | return 1; |
7537 | } | |
0d204c34 HMH |
7538 | |
7539 | BUG_ON(!card->private_data); | |
7540 | data = card->private_data; | |
7541 | data->card = card; | |
7542 | ||
7543 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7544 | sizeof(card->driver)); | |
7545 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7546 | sizeof(card->shortname)); | |
7547 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7548 | (thinkpad_id.ec_version_str) ? | |
7549 | thinkpad_id.ec_version_str : "(unknown)"); | |
7550 | snprintf(card->longname, sizeof(card->longname), | |
7551 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7552 | (thinkpad_id.ec_version_str) ? | |
7553 | thinkpad_id.ec_version_str : "unknown"); | |
7554 | ||
7555 | if (volume_control_allowed) { | |
7556 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7557 | volume_alsa_control_vol.access = | |
7558 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7559 | ||
7560 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7561 | volume_alsa_control_mute.access = | |
7562 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7563 | } | |
7564 | ||
7565 | if (!tp_features.mixer_no_level_control) { | |
7566 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7567 | rc = snd_ctl_add(card, ctl_vol); | |
7568 | if (rc < 0) { | |
0978e012 JP |
7569 | pr_err("Failed to create ALSA volume control: %d\n", |
7570 | rc); | |
74c75c18 | 7571 | goto err_exit; |
78f81cc4 | 7572 | } |
0d204c34 HMH |
7573 | data->ctl_vol_id = &ctl_vol->id; |
7574 | } | |
78f81cc4 | 7575 | |
0d204c34 HMH |
7576 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7577 | rc = snd_ctl_add(card, ctl_mute); | |
7578 | if (rc < 0) { | |
0978e012 | 7579 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7580 | goto err_exit; |
0d204c34 HMH |
7581 | } |
7582 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7583 | |
0d204c34 | 7584 | rc = snd_card_register(card); |
0d204c34 | 7585 | if (rc < 0) { |
0978e012 | 7586 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7587 | goto err_exit; |
0d204c34 HMH |
7588 | } |
7589 | ||
7590 | alsa_card = card; | |
74c75c18 HMH |
7591 | return 0; |
7592 | ||
7593 | err_exit: | |
7594 | snd_card_free(card); | |
7595 | return 1; | |
0d204c34 HMH |
7596 | } |
7597 | ||
a112ceee HMH |
7598 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7599 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7600 | ||
7601 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7602 | /* Whitelist volume level on all IBM by default */ | |
7603 | { .vendor = PCI_VENDOR_ID_IBM, | |
7604 | .bios = TPACPI_MATCH_ANY, | |
7605 | .ec = TPACPI_MATCH_ANY, | |
7606 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7607 | ||
7608 | /* Lenovo models with volume control (needs confirmation) */ | |
7609 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7610 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7611 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7612 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7613 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7614 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7615 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7616 | ||
7617 | /* Whitelist mute-only on all Lenovo by default */ | |
7618 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7619 | .bios = TPACPI_MATCH_ANY, | |
7620 | .ec = TPACPI_MATCH_ANY, | |
7621 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7622 | }; | |
7623 | ||
329e4e18 HMH |
7624 | static int __init volume_init(struct ibm_init_struct *iibm) |
7625 | { | |
a112ceee | 7626 | unsigned long quirks; |
0d204c34 | 7627 | int rc; |
a112ceee | 7628 | |
329e4e18 HMH |
7629 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7630 | ||
7631 | mutex_init(&volume_mutex); | |
7632 | ||
7633 | /* | |
7634 | * Check for module parameter bogosity, note that we | |
7635 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7636 | * able to detect "unspecified" | |
7637 | */ | |
7638 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7639 | return -EINVAL; | |
7640 | ||
7641 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
5cac62ac AS |
7642 | pr_err("UCMS step volume mode not implemented, please contact %s\n", |
7643 | TPACPI_MAIL); | |
329e4e18 HMH |
7644 | return 1; |
7645 | } | |
7646 | ||
a112ceee HMH |
7647 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7648 | return -EINVAL; | |
7649 | ||
0d204c34 HMH |
7650 | /* |
7651 | * The ALSA mixer is our primary interface. | |
7652 | * When disabled, don't install the subdriver at all | |
7653 | */ | |
7654 | if (!alsa_enable) { | |
7655 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
5cac62ac | 7656 | "ALSA mixer disabled by parameter, not loading volume subdriver...\n"); |
0d204c34 HMH |
7657 | return 1; |
7658 | } | |
7659 | ||
a112ceee HMH |
7660 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7661 | ARRAY_SIZE(volume_quirk_table)); | |
7662 | ||
7663 | switch (volume_capabilities) { | |
7664 | case TPACPI_VOL_CAP_AUTO: | |
7665 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7666 | tp_features.mixer_no_level_control = 1; | |
7667 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7668 | tp_features.mixer_no_level_control = 0; | |
7669 | else | |
7670 | return 1; /* no mixer */ | |
7671 | break; | |
7672 | case TPACPI_VOL_CAP_VOLMUTE: | |
7673 | tp_features.mixer_no_level_control = 0; | |
7674 | break; | |
7675 | case TPACPI_VOL_CAP_MUTEONLY: | |
7676 | tp_features.mixer_no_level_control = 1; | |
7677 | break; | |
7678 | default: | |
7679 | return 1; | |
7680 | } | |
7681 | ||
7682 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7683 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7684 | "using user-supplied volume_capabilities=%d\n", | |
7685 | volume_capabilities); | |
7686 | ||
329e4e18 HMH |
7687 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7688 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7689 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7690 | ||
7691 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7692 | "driver auto-selected volume_mode=%d\n", | |
7693 | volume_mode); | |
7694 | } else { | |
7695 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7696 | "using user-supplied volume_mode=%d\n", | |
7697 | volume_mode); | |
7698 | } | |
7699 | ||
7700 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7701 | "mute is supported, volume control is %s\n", |
7702 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7703 | |
9a417ec0 AL |
7704 | if (software_mute_requested && volume_set_software_mute(true) == 0) { |
7705 | software_mute_active = true; | |
7706 | } else { | |
7707 | rc = volume_create_alsa_mixer(); | |
7708 | if (rc) { | |
7709 | pr_err("Could not create the ALSA mixer interface\n"); | |
7710 | return rc; | |
7711 | } | |
0d204c34 | 7712 | |
9a417ec0 AL |
7713 | pr_info("Console audio control enabled, mode: %s\n", |
7714 | (volume_control_allowed) ? | |
7715 | "override (read/write)" : | |
7716 | "monitor (read only)"); | |
7717 | } | |
c7ac6291 | 7718 | |
0d204c34 HMH |
7719 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7720 | "registering volume hotkeys as change notification\n"); | |
7721 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7722 | | TP_ACPI_HKEY_VOLUP_MASK | |
7723 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7724 | | TP_ACPI_HKEY_MUTE_MASK); | |
7725 | ||
329e4e18 HMH |
7726 | return 0; |
7727 | } | |
f74a27d4 | 7728 | |
887965e6 | 7729 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7730 | { |
329e4e18 | 7731 | u8 status; |
78f81cc4 | 7732 | |
329e4e18 | 7733 | if (volume_get_status(&status) < 0) { |
887965e6 | 7734 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7735 | } else { |
a112ceee | 7736 | if (tp_features.mixer_no_level_control) |
887965e6 | 7737 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7738 | else |
887965e6 | 7739 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7740 | status & TP_EC_AUDIO_LVL_MSK); |
7741 | ||
887965e6 | 7742 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7743 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7744 | |
c7ac6291 | 7745 | if (volume_control_allowed) { |
887965e6 | 7746 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7747 | if (!tp_features.mixer_no_level_control) { |
5cac62ac AS |
7748 | seq_printf(m, "commands:\tup, down\n"); |
7749 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", | |
7750 | TP_EC_VOLUME_MAX); | |
c7ac6291 | 7751 | } |
78f81cc4 BD |
7752 | } |
7753 | } | |
7754 | ||
7755 | return 0; | |
7756 | } | |
7757 | ||
78f81cc4 BD |
7758 | static int volume_write(char *buf) |
7759 | { | |
329e4e18 HMH |
7760 | u8 s; |
7761 | u8 new_level, new_mute; | |
7762 | int l; | |
78f81cc4 | 7763 | char *cmd; |
329e4e18 | 7764 | int rc; |
78f81cc4 | 7765 | |
c7ac6291 HMH |
7766 | /* |
7767 | * We do allow volume control at driver startup, so that the | |
7768 | * user can set initial state through the volume=... parameter hack. | |
7769 | */ | |
7770 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7771 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7772 | tp_warned.volume_ctrl_forbidden = 1; | |
5cac62ac AS |
7773 | pr_notice("Console audio control in monitor mode, changes are not allowed\n"); |
7774 | pr_notice("Use the volume_control=1 module parameter to enable volume control\n"); | |
c7ac6291 HMH |
7775 | } |
7776 | return -EPERM; | |
7777 | } | |
7778 | ||
329e4e18 HMH |
7779 | rc = volume_get_status(&s); |
7780 | if (rc < 0) | |
7781 | return rc; | |
78f81cc4 | 7782 | |
329e4e18 HMH |
7783 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7784 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7785 | ||
7786 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7787 | if (!tp_features.mixer_no_level_control) { |
7788 | if (strlencmp(cmd, "up") == 0) { | |
7789 | if (new_mute) | |
7790 | new_mute = 0; | |
7791 | else if (new_level < TP_EC_VOLUME_MAX) | |
7792 | new_level++; | |
7793 | continue; | |
7794 | } else if (strlencmp(cmd, "down") == 0) { | |
7795 | if (new_mute) | |
7796 | new_mute = 0; | |
7797 | else if (new_level > 0) | |
7798 | new_level--; | |
7799 | continue; | |
7800 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7801 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7802 | new_level = l; | |
7803 | continue; | |
7804 | } | |
7805 | } | |
7806 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7807 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7808 | else if (strlencmp(cmd, "unmute") == 0) |
7809 | new_mute = 0; | |
7810 | else | |
1da177e4 | 7811 | return -EINVAL; |
329e4e18 | 7812 | } |
1da177e4 | 7813 | |
a112ceee HMH |
7814 | if (tp_features.mixer_no_level_control) { |
7815 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7816 | new_mute ? "" : "un"); | |
7817 | rc = volume_set_mute(!!new_mute); | |
7818 | } else { | |
7819 | tpacpi_disclose_usertask("procfs volume", | |
7820 | "%smute and set level to %d\n", | |
7821 | new_mute ? "" : "un", new_level); | |
7822 | rc = volume_set_status(new_mute | new_level); | |
7823 | } | |
0d204c34 | 7824 | volume_alsa_notify_change(); |
78f81cc4 | 7825 | |
329e4e18 | 7826 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7827 | } |
7828 | ||
a5763f22 HMH |
7829 | static struct ibm_struct volume_driver_data = { |
7830 | .name = "volume", | |
7831 | .read = volume_read, | |
7832 | .write = volume_write, | |
329e4e18 HMH |
7833 | .exit = volume_exit, |
7834 | .suspend = volume_suspend, | |
0d204c34 | 7835 | .resume = volume_resume, |
329e4e18 | 7836 | .shutdown = volume_shutdown, |
a5763f22 | 7837 | }; |
56b6aeb0 | 7838 | |
ff850c33 HMH |
7839 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7840 | ||
7841 | #define alsa_card NULL | |
7842 | ||
bb55a2ee | 7843 | static inline void volume_alsa_notify_change(void) |
ff850c33 HMH |
7844 | { |
7845 | } | |
7846 | ||
7847 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7848 | { | |
0978e012 | 7849 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7850 | |
7851 | return 1; | |
7852 | } | |
7853 | ||
7854 | static struct ibm_struct volume_driver_data = { | |
7855 | .name = "volume", | |
7856 | }; | |
7857 | ||
7858 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7859 | ||
56b6aeb0 HMH |
7860 | /************************************************************************* |
7861 | * Fan subdriver | |
7862 | */ | |
7863 | ||
7864 | /* | |
7865 | * FAN ACCESS MODES | |
7866 | * | |
efa27145 | 7867 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7868 | * ACPI GFAN method: returns fan level |
7869 | * | |
efa27145 | 7870 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7871 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7872 | * |
efa27145 | 7873 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7874 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7875 | * | |
f51d1a39 HMH |
7876 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7877 | * it for writing. | |
56b6aeb0 | 7878 | * |
efa27145 | 7879 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7880 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7881 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7882 | * |
7883 | * Fan speed changes of any sort (including those caused by the | |
7884 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7885 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7886 | * limited. |
7887 | * | |
7888 | * Reading is not available if GFAN exists. | |
7889 | * Writing is not available if SFAN exists. | |
7890 | * | |
7891 | * Bits | |
7892 | * 7 automatic mode engaged; | |
7893 | * (default operation mode of the ThinkPad) | |
7894 | * fan level is ignored in this mode. | |
f51d1a39 | 7895 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7896 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7897 | * the tachometer while the fan controller ramps up |
7898 | * the speed (which can take up to a few *minutes*). | |
7899 | * Speeds up fan to 100% duty-cycle, which is far above | |
7900 | * the standard RPM levels. It is not impossible that | |
7901 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7902 | * 5-3 unused in some models. Extra bits for fan level |
7903 | * in others, but still useless as all values above | |
7904 | * 7 map to the same speed as level 7 in these models. | |
7905 | * 2-0 fan level (0..7 usually) | |
7906 | * 0x00 = stop | |
7907 | * 0x07 = max (set when temperatures critical) | |
7908 | * Some ThinkPads may have other levels, see | |
efa27145 | 7909 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7910 | * |
7911 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7912 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7913 | * does so, its initial value is meaningless (0x07). |
7914 | * | |
7915 | * For firmware bugs, refer to: | |
7916 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7917 | * | |
7918 | * ---- | |
7919 | * | |
7920 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7921 | * Main fan tachometer reading (in RPM) | |
7922 | * | |
7923 | * This register is present on all ThinkPads with a new-style EC, and | |
7924 | * it is known not to be present on the A21m/e, and T22, as there is | |
7925 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7926 | * ThinkPads from this same time period (and earlier) probably lack the | |
7927 | * tachometer as well. | |
7928 | * | |
877d0310 | 7929 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7930 | * was never fixed by IBM to report the EC firmware version string |
7931 | * probably support the tachometer (like the early X models), so | |
7932 | * detecting it is quite hard. We need more data to know for sure. | |
7933 | * | |
7934 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7935 | * might result. | |
7936 | * | |
f51d1a39 HMH |
7937 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7938 | * mode. | |
56b6aeb0 HMH |
7939 | * |
7940 | * For firmware bugs, refer to: | |
7941 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7942 | * | |
d7377247 HMH |
7943 | * ---- |
7944 | * | |
7945 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7946 | * | |
7947 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7948 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7949 | * is one, the tachometer registers show the speed of the auxiliary | |
7950 | * fan. | |
7951 | * | |
7952 | * Fan control seems to affect both fans, regardless of the state | |
7953 | * of this bit. | |
7954 | * | |
7955 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7956 | * seem to support this (firmware TP-7M). | |
7957 | * | |
efa27145 | 7958 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7959 | * ThinkPad X31, X40, X41. Not available in the X60. |
7960 | * | |
7961 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7962 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7963 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7964 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7965 | * | |
7966 | * The speeds are stored on handles | |
7967 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7968 | * | |
af901ca1 | 7969 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7970 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7971 | * | |
7972 | * ACPI DSDT switches which set is in use depending on various | |
7973 | * factors. | |
7974 | * | |
efa27145 | 7975 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7976 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7977 | * but the ACPI tables just mention level 7. | |
7978 | */ | |
7979 | ||
f74a27d4 HMH |
7980 | enum { /* Fan control constants */ |
7981 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7982 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7983 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7984 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7985 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7986 | |
7987 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7988 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7989 | ||
7990 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7991 | }; | |
7992 | ||
7993 | enum fan_status_access_mode { | |
7994 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7995 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7996 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7997 | }; | |
7998 | ||
7999 | enum fan_control_access_mode { | |
8000 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
8001 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
8002 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
8003 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
8004 | }; | |
8005 | ||
8006 | enum fan_control_commands { | |
8007 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
8008 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
8009 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
8010 | * and also watchdog cmd */ | |
8011 | }; | |
8012 | ||
90ab5ee9 | 8013 | static bool fan_control_allowed; |
f74a27d4 | 8014 | |
69ba91cb HMH |
8015 | static enum fan_status_access_mode fan_status_access_mode; |
8016 | static enum fan_control_access_mode fan_control_access_mode; | |
8017 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 8018 | |
778b4d74 | 8019 | static u8 fan_control_initial_status; |
fe98a52c | 8020 | static u8 fan_control_desired_level; |
0081b162 | 8021 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
8022 | static int fan_watchdog_maxinterval; |
8023 | ||
8024 | static struct mutex fan_mutex; | |
778b4d74 | 8025 | |
25c68a33 | 8026 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 8027 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 8028 | |
e0c7dfe7 HMH |
8029 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
8030 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
8031 | "\\FSPD", /* 600e/x, 770e, 770x */ |
8032 | ); /* all others */ | |
e0c7dfe7 | 8033 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
8034 | "JFNS", /* 770x-JL */ |
8035 | ); /* all others */ | |
8036 | ||
1c2ece75 HMH |
8037 | /* |
8038 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
8039 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
8040 | * be in auto mode (0x80). | |
8041 | * | |
8042 | * This is corrected by any write to HFSP either by the driver, or | |
8043 | * by the firmware. | |
8044 | * | |
8045 | * We assume 0x07 really means auto mode while this quirk is active, | |
8046 | * as this is far more likely than the ThinkPad being in level 7, | |
8047 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
8048 | * |
8049 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
8050 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
8051 | */ |
8052 | ||
7d95a3d5 | 8053 | static void fan_quirk1_setup(void) |
1c2ece75 | 8054 | { |
1c2ece75 | 8055 | if (fan_control_initial_status == 0x07) { |
5cac62ac | 8056 | pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n"); |
7d95a3d5 | 8057 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
8058 | } |
8059 | } | |
8060 | ||
8061 | static void fan_quirk1_handle(u8 *fan_status) | |
8062 | { | |
8063 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
8064 | if (*fan_status != fan_control_initial_status) { | |
8065 | /* something changed the HFSP regisnter since | |
8066 | * driver init time, so it is not undefined | |
8067 | * anymore */ | |
8068 | tp_features.fan_ctrl_status_undef = 0; | |
8069 | } else { | |
8070 | /* Return most likely status. In fact, it | |
8071 | * might be the only possible status */ | |
8072 | *fan_status = TP_EC_FAN_AUTO; | |
8073 | } | |
8074 | } | |
8075 | } | |
8076 | ||
d7377247 HMH |
8077 | /* Select main fan on X60/X61, NOOP on others */ |
8078 | static bool fan_select_fan1(void) | |
8079 | { | |
8080 | if (tp_features.second_fan) { | |
8081 | u8 val; | |
8082 | ||
8083 | if (ec_read(fan_select_offset, &val) < 0) | |
8084 | return false; | |
8085 | val &= 0xFEU; | |
8086 | if (ec_write(fan_select_offset, val) < 0) | |
8087 | return false; | |
8088 | } | |
8089 | return true; | |
8090 | } | |
8091 | ||
8092 | /* Select secondary fan on X60/X61 */ | |
8093 | static bool fan_select_fan2(void) | |
8094 | { | |
8095 | u8 val; | |
8096 | ||
8097 | if (!tp_features.second_fan) | |
8098 | return false; | |
8099 | ||
8100 | if (ec_read(fan_select_offset, &val) < 0) | |
8101 | return false; | |
8102 | val |= 0x01U; | |
8103 | if (ec_write(fan_select_offset, val) < 0) | |
8104 | return false; | |
8105 | ||
8106 | return true; | |
8107 | } | |
8108 | ||
fe98a52c | 8109 | /* |
b21a15f6 | 8110 | * Call with fan_mutex held |
fe98a52c | 8111 | */ |
b21a15f6 | 8112 | static void fan_update_desired_level(u8 status) |
fe98a52c | 8113 | { |
b21a15f6 HMH |
8114 | if ((status & |
8115 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8116 | if (status > 7) | |
8117 | fan_control_desired_level = 7; | |
8118 | else | |
8119 | fan_control_desired_level = status; | |
8120 | } | |
8121 | } | |
fe98a52c | 8122 | |
b21a15f6 HMH |
8123 | static int fan_get_status(u8 *status) |
8124 | { | |
8125 | u8 s; | |
fe98a52c | 8126 | |
b21a15f6 HMH |
8127 | /* TODO: |
8128 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 8129 | |
b21a15f6 | 8130 | switch (fan_status_access_mode) { |
eceeb437 | 8131 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 8132 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 8133 | int res; |
fe98a52c | 8134 | |
eceeb437 | 8135 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 8136 | return -EIO; |
fe98a52c | 8137 | |
b21a15f6 | 8138 | if (likely(status)) |
eceeb437 | 8139 | *status = res & 0x07; |
fe98a52c | 8140 | |
b21a15f6 | 8141 | break; |
eceeb437 | 8142 | } |
b21a15f6 HMH |
8143 | case TPACPI_FAN_RD_TPEC: |
8144 | /* all except 570, 600e/x, 770e, 770x */ | |
8145 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
8146 | return -EIO; | |
8147 | ||
1c2ece75 | 8148 | if (likely(status)) { |
b21a15f6 | 8149 | *status = s; |
1c2ece75 HMH |
8150 | fan_quirk1_handle(status); |
8151 | } | |
fe98a52c | 8152 | |
fe98a52c | 8153 | break; |
b21a15f6 | 8154 | |
fe98a52c | 8155 | default: |
b21a15f6 | 8156 | return -ENXIO; |
fe98a52c HMH |
8157 | } |
8158 | ||
b21a15f6 HMH |
8159 | return 0; |
8160 | } | |
fe98a52c | 8161 | |
b21a15f6 HMH |
8162 | static int fan_get_status_safe(u8 *status) |
8163 | { | |
8164 | int rc; | |
8165 | u8 s; | |
fe98a52c | 8166 | |
7646ea88 | 8167 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
8168 | return -ERESTARTSYS; |
8169 | rc = fan_get_status(&s); | |
8170 | if (!rc) | |
8171 | fan_update_desired_level(s); | |
8172 | mutex_unlock(&fan_mutex); | |
fe98a52c | 8173 | |
a7718360 DC |
8174 | if (rc) |
8175 | return rc; | |
b21a15f6 HMH |
8176 | if (status) |
8177 | *status = s; | |
fe98a52c | 8178 | |
a7718360 | 8179 | return 0; |
b21a15f6 HMH |
8180 | } |
8181 | ||
8182 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 8183 | { |
b21a15f6 | 8184 | u8 hi, lo; |
fe98a52c | 8185 | |
b21a15f6 HMH |
8186 | switch (fan_status_access_mode) { |
8187 | case TPACPI_FAN_RD_TPEC: | |
8188 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
8189 | if (unlikely(!fan_select_fan1())) |
8190 | return -EIO; | |
b21a15f6 HMH |
8191 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
8192 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
8193 | return -EIO; | |
fe98a52c | 8194 | |
b21a15f6 HMH |
8195 | if (likely(speed)) |
8196 | *speed = (hi << 8) | lo; | |
fe98a52c | 8197 | |
b21a15f6 | 8198 | break; |
fe98a52c | 8199 | |
b21a15f6 HMH |
8200 | default: |
8201 | return -ENXIO; | |
8202 | } | |
fe98a52c | 8203 | |
b21a15f6 | 8204 | return 0; |
fe98a52c HMH |
8205 | } |
8206 | ||
d7377247 HMH |
8207 | static int fan2_get_speed(unsigned int *speed) |
8208 | { | |
8209 | u8 hi, lo; | |
8210 | bool rc; | |
8211 | ||
8212 | switch (fan_status_access_mode) { | |
8213 | case TPACPI_FAN_RD_TPEC: | |
8214 | /* all except 570, 600e/x, 770e, 770x */ | |
8215 | if (unlikely(!fan_select_fan2())) | |
8216 | return -EIO; | |
8217 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
8218 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
8219 | fan_select_fan1(); /* play it safe */ | |
8220 | if (rc) | |
8221 | return -EIO; | |
8222 | ||
8223 | if (likely(speed)) | |
8224 | *speed = (hi << 8) | lo; | |
8225 | ||
8226 | break; | |
8227 | ||
8228 | default: | |
8229 | return -ENXIO; | |
8230 | } | |
8231 | ||
8232 | return 0; | |
8233 | } | |
8234 | ||
b21a15f6 | 8235 | static int fan_set_level(int level) |
fe98a52c | 8236 | { |
b21a15f6 HMH |
8237 | if (!fan_control_allowed) |
8238 | return -EPERM; | |
fe98a52c | 8239 | |
b21a15f6 HMH |
8240 | switch (fan_control_access_mode) { |
8241 | case TPACPI_FAN_WR_ACPI_SFAN: | |
8242 | if (level >= 0 && level <= 7) { | |
8243 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
8244 | return -EIO; | |
8245 | } else | |
8246 | return -EINVAL; | |
8247 | break; | |
fe98a52c | 8248 | |
b21a15f6 HMH |
8249 | case TPACPI_FAN_WR_ACPI_FANS: |
8250 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8251 | if (!(level & TP_EC_FAN_AUTO) && |
8252 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
8253 | ((level < 0) || (level > 7))) |
8254 | return -EINVAL; | |
fe98a52c | 8255 | |
b21a15f6 HMH |
8256 | /* safety net should the EC not support AUTO |
8257 | * or FULLSPEED mode bits and just ignore them */ | |
8258 | if (level & TP_EC_FAN_FULLSPEED) | |
8259 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 8260 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 8261 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 8262 | |
b21a15f6 HMH |
8263 | if (!acpi_ec_write(fan_status_offset, level)) |
8264 | return -EIO; | |
8265 | else | |
8266 | tp_features.fan_ctrl_status_undef = 0; | |
8267 | break; | |
fe98a52c | 8268 | |
b21a15f6 HMH |
8269 | default: |
8270 | return -ENXIO; | |
8271 | } | |
74a60c0f HMH |
8272 | |
8273 | vdbg_printk(TPACPI_DBG_FAN, | |
8274 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 8275 | return 0; |
fe98a52c HMH |
8276 | } |
8277 | ||
b21a15f6 | 8278 | static int fan_set_level_safe(int level) |
fe98a52c | 8279 | { |
b21a15f6 | 8280 | int rc; |
fe98a52c | 8281 | |
b21a15f6 HMH |
8282 | if (!fan_control_allowed) |
8283 | return -EPERM; | |
fe98a52c | 8284 | |
7646ea88 | 8285 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8286 | return -ERESTARTSYS; |
fe98a52c | 8287 | |
b21a15f6 HMH |
8288 | if (level == TPACPI_FAN_LAST_LEVEL) |
8289 | level = fan_control_desired_level; | |
fe98a52c | 8290 | |
b21a15f6 HMH |
8291 | rc = fan_set_level(level); |
8292 | if (!rc) | |
8293 | fan_update_desired_level(level); | |
8294 | ||
8295 | mutex_unlock(&fan_mutex); | |
8296 | return rc; | |
fe98a52c HMH |
8297 | } |
8298 | ||
b21a15f6 | 8299 | static int fan_set_enable(void) |
fe98a52c | 8300 | { |
b21a15f6 HMH |
8301 | u8 s; |
8302 | int rc; | |
fe98a52c | 8303 | |
ecf2a80a HMH |
8304 | if (!fan_control_allowed) |
8305 | return -EPERM; | |
8306 | ||
7646ea88 | 8307 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8308 | return -ERESTARTSYS; |
fe98a52c | 8309 | |
b21a15f6 HMH |
8310 | switch (fan_control_access_mode) { |
8311 | case TPACPI_FAN_WR_ACPI_FANS: | |
8312 | case TPACPI_FAN_WR_TPEC: | |
8313 | rc = fan_get_status(&s); | |
8314 | if (rc < 0) | |
8315 | break; | |
fe98a52c | 8316 | |
b21a15f6 HMH |
8317 | /* Don't go out of emergency fan mode */ |
8318 | if (s != 7) { | |
8319 | s &= 0x07; | |
8320 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
8321 | } | |
fe98a52c | 8322 | |
b21a15f6 HMH |
8323 | if (!acpi_ec_write(fan_status_offset, s)) |
8324 | rc = -EIO; | |
8325 | else { | |
8326 | tp_features.fan_ctrl_status_undef = 0; | |
8327 | rc = 0; | |
8328 | } | |
8329 | break; | |
fe98a52c | 8330 | |
b21a15f6 HMH |
8331 | case TPACPI_FAN_WR_ACPI_SFAN: |
8332 | rc = fan_get_status(&s); | |
8333 | if (rc < 0) | |
8334 | break; | |
fe98a52c | 8335 | |
b21a15f6 | 8336 | s &= 0x07; |
fe98a52c | 8337 | |
b21a15f6 HMH |
8338 | /* Set fan to at least level 4 */ |
8339 | s |= 4; | |
fe08bc4b | 8340 | |
b21a15f6 | 8341 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 8342 | rc = -EIO; |
b21a15f6 HMH |
8343 | else |
8344 | rc = 0; | |
8345 | break; | |
78f81cc4 | 8346 | |
b21a15f6 HMH |
8347 | default: |
8348 | rc = -ENXIO; | |
8349 | } | |
5fba344c | 8350 | |
b21a15f6 | 8351 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
8352 | |
8353 | if (!rc) | |
8354 | vdbg_printk(TPACPI_DBG_FAN, | |
8355 | "fan control: set fan control register to 0x%02x\n", | |
8356 | s); | |
b21a15f6 | 8357 | return rc; |
69ba91cb | 8358 | } |
78f81cc4 | 8359 | |
b21a15f6 | 8360 | static int fan_set_disable(void) |
78f81cc4 | 8361 | { |
b21a15f6 | 8362 | int rc; |
c52f0aa5 | 8363 | |
b21a15f6 HMH |
8364 | if (!fan_control_allowed) |
8365 | return -EPERM; | |
78f81cc4 | 8366 | |
7646ea88 | 8367 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8368 | return -ERESTARTSYS; |
3ef8a609 | 8369 | |
b21a15f6 HMH |
8370 | rc = 0; |
8371 | switch (fan_control_access_mode) { | |
8372 | case TPACPI_FAN_WR_ACPI_FANS: | |
8373 | case TPACPI_FAN_WR_TPEC: | |
8374 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
8375 | rc = -EIO; | |
8376 | else { | |
8377 | fan_control_desired_level = 0; | |
8378 | tp_features.fan_ctrl_status_undef = 0; | |
8379 | } | |
3ef8a609 HMH |
8380 | break; |
8381 | ||
b21a15f6 HMH |
8382 | case TPACPI_FAN_WR_ACPI_SFAN: |
8383 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
8384 | rc = -EIO; | |
8385 | else | |
8386 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
8387 | break; |
8388 | ||
8389 | default: | |
b21a15f6 | 8390 | rc = -ENXIO; |
78f81cc4 BD |
8391 | } |
8392 | ||
74a60c0f HMH |
8393 | if (!rc) |
8394 | vdbg_printk(TPACPI_DBG_FAN, | |
8395 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 8396 | |
fe98a52c | 8397 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
8398 | return rc; |
8399 | } | |
8400 | ||
b21a15f6 | 8401 | static int fan_set_speed(int speed) |
c52f0aa5 | 8402 | { |
b21a15f6 | 8403 | int rc; |
c52f0aa5 | 8404 | |
b21a15f6 HMH |
8405 | if (!fan_control_allowed) |
8406 | return -EPERM; | |
3ef8a609 | 8407 | |
7646ea88 | 8408 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8409 | return -ERESTARTSYS; |
c52f0aa5 | 8410 | |
b21a15f6 HMH |
8411 | rc = 0; |
8412 | switch (fan_control_access_mode) { | |
8413 | case TPACPI_FAN_WR_ACPI_FANS: | |
8414 | if (speed >= 0 && speed <= 65535) { | |
8415 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8416 | speed, speed, speed)) | |
8417 | rc = -EIO; | |
8418 | } else | |
8419 | rc = -EINVAL; | |
c52f0aa5 HMH |
8420 | break; |
8421 | ||
8422 | default: | |
b21a15f6 | 8423 | rc = -ENXIO; |
c52f0aa5 HMH |
8424 | } |
8425 | ||
b21a15f6 HMH |
8426 | mutex_unlock(&fan_mutex); |
8427 | return rc; | |
16663a87 HMH |
8428 | } |
8429 | ||
8430 | static void fan_watchdog_reset(void) | |
8431 | { | |
4985cd0a HMH |
8432 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8433 | return; | |
8434 | ||
8fef502e | 8435 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8436 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8437 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8438 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8439 | else | |
8440 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8441 | } |
8442 | ||
b21a15f6 | 8443 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8444 | { |
b21a15f6 | 8445 | int rc; |
18ad7996 | 8446 | |
b21a15f6 HMH |
8447 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8448 | return; | |
a12095c2 | 8449 | |
0978e012 | 8450 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8451 | rc = fan_set_enable(); |
8452 | if (rc < 0) { | |
5cac62ac AS |
8453 | pr_err("fan watchdog: error %d while enabling fan, will try again later...\n", |
8454 | rc); | |
b21a15f6 HMH |
8455 | /* reschedule for later */ |
8456 | fan_watchdog_reset(); | |
8457 | } | |
8458 | } | |
eaa7571b | 8459 | |
b21a15f6 HMH |
8460 | /* |
8461 | * SYSFS fan layout: hwmon compatible (device) | |
8462 | * | |
8463 | * pwm*_enable: | |
8464 | * 0: "disengaged" mode | |
8465 | * 1: manual mode | |
8466 | * 2: native EC "auto" mode (recommended, hardware default) | |
8467 | * | |
8468 | * pwm*: set speed in manual mode, ignored otherwise. | |
8469 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8470 | * interpolation. | |
8471 | * | |
8472 | * fan*_input: tachometer reading, RPM | |
8473 | * | |
8474 | * | |
8475 | * SYSFS fan layout: extensions | |
8476 | * | |
8477 | * fan_watchdog (driver): | |
8478 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8479 | */ | |
8480 | ||
8481 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8482 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8483 | struct device_attribute *attr, | |
8484 | char *buf) | |
8485 | { | |
8486 | int res, mode; | |
8487 | u8 status; | |
8488 | ||
8489 | res = fan_get_status_safe(&status); | |
8490 | if (res) | |
8491 | return res; | |
8492 | ||
b21a15f6 HMH |
8493 | if (status & TP_EC_FAN_FULLSPEED) { |
8494 | mode = 0; | |
8495 | } else if (status & TP_EC_FAN_AUTO) { | |
8496 | mode = 2; | |
8497 | } else | |
8498 | mode = 1; | |
8499 | ||
8500 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8501 | } | |
a12095c2 | 8502 | |
b21a15f6 HMH |
8503 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8504 | struct device_attribute *attr, | |
8505 | const char *buf, size_t count) | |
8506 | { | |
8507 | unsigned long t; | |
8508 | int res, level; | |
8509 | ||
8510 | if (parse_strtoul(buf, 2, &t)) | |
8511 | return -EINVAL; | |
8512 | ||
74a60c0f HMH |
8513 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8514 | "set fan mode to %lu\n", t); | |
8515 | ||
b21a15f6 HMH |
8516 | switch (t) { |
8517 | case 0: | |
8518 | level = TP_EC_FAN_FULLSPEED; | |
8519 | break; | |
8520 | case 1: | |
8521 | level = TPACPI_FAN_LAST_LEVEL; | |
8522 | break; | |
8523 | case 2: | |
8524 | level = TP_EC_FAN_AUTO; | |
8525 | break; | |
8526 | case 3: | |
8527 | /* reserved for software-controlled auto mode */ | |
8528 | return -ENOSYS; | |
18ad7996 | 8529 | default: |
b21a15f6 | 8530 | return -EINVAL; |
18ad7996 | 8531 | } |
b21a15f6 HMH |
8532 | |
8533 | res = fan_set_level_safe(level); | |
8534 | if (res == -ENXIO) | |
8535 | return -EINVAL; | |
8536 | else if (res < 0) | |
8537 | return res; | |
8538 | ||
8539 | fan_watchdog_reset(); | |
8540 | ||
8541 | return count; | |
18ad7996 HMH |
8542 | } |
8543 | ||
5fb73bc2 BM |
8544 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8545 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8546 | |
8547 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8548 | static ssize_t fan_pwm1_show(struct device *dev, | |
8549 | struct device_attribute *attr, | |
8550 | char *buf) | |
fe98a52c | 8551 | { |
b21a15f6 HMH |
8552 | int res; |
8553 | u8 status; | |
fe98a52c | 8554 | |
b21a15f6 HMH |
8555 | res = fan_get_status_safe(&status); |
8556 | if (res) | |
8557 | return res; | |
ecf2a80a | 8558 | |
b21a15f6 HMH |
8559 | if ((status & |
8560 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8561 | status = fan_control_desired_level; | |
fe98a52c | 8562 | |
b21a15f6 HMH |
8563 | if (status > 7) |
8564 | status = 7; | |
fe98a52c | 8565 | |
b21a15f6 | 8566 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8567 | } |
8568 | ||
b21a15f6 HMH |
8569 | static ssize_t fan_pwm1_store(struct device *dev, |
8570 | struct device_attribute *attr, | |
8571 | const char *buf, size_t count) | |
18ad7996 | 8572 | { |
b21a15f6 | 8573 | unsigned long s; |
1c6a334e | 8574 | int rc; |
b21a15f6 | 8575 | u8 status, newlevel; |
1c6a334e | 8576 | |
b21a15f6 HMH |
8577 | if (parse_strtoul(buf, 255, &s)) |
8578 | return -EINVAL; | |
8579 | ||
74a60c0f HMH |
8580 | tpacpi_disclose_usertask("hwmon pwm1", |
8581 | "set fan speed to %lu\n", s); | |
8582 | ||
b21a15f6 HMH |
8583 | /* scale down from 0-255 to 0-7 */ |
8584 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8585 | |
7646ea88 | 8586 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8587 | return -ERESTARTSYS; |
40ca9fdf | 8588 | |
b21a15f6 HMH |
8589 | rc = fan_get_status(&status); |
8590 | if (!rc && (status & | |
8591 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8592 | rc = fan_set_level(newlevel); | |
8593 | if (rc == -ENXIO) | |
8594 | rc = -EINVAL; | |
8595 | else if (!rc) { | |
8596 | fan_update_desired_level(newlevel); | |
8597 | fan_watchdog_reset(); | |
eaa7571b | 8598 | } |
b21a15f6 | 8599 | } |
1c6a334e | 8600 | |
b21a15f6 | 8601 | mutex_unlock(&fan_mutex); |
72a979f0 | 8602 | return (rc) ? rc : count; |
b21a15f6 | 8603 | } |
1c6a334e | 8604 | |
5fb73bc2 | 8605 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8606 | |
b21a15f6 HMH |
8607 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8608 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8609 | struct device_attribute *attr, | |
8610 | char *buf) | |
8611 | { | |
8612 | int res; | |
8613 | unsigned int speed; | |
1c6a334e | 8614 | |
b21a15f6 HMH |
8615 | res = fan_get_speed(&speed); |
8616 | if (res < 0) | |
8617 | return res; | |
1c6a334e | 8618 | |
b21a15f6 HMH |
8619 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8620 | } | |
18ad7996 | 8621 | |
5fb73bc2 | 8622 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8623 | |
d7377247 HMH |
8624 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8625 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8626 | struct device_attribute *attr, | |
8627 | char *buf) | |
8628 | { | |
8629 | int res; | |
8630 | unsigned int speed; | |
8631 | ||
8632 | res = fan2_get_speed(&speed); | |
8633 | if (res < 0) | |
8634 | return res; | |
8635 | ||
8636 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8637 | } | |
8638 | ||
5fb73bc2 | 8639 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8640 | |
b21a15f6 | 8641 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
ac3054c4 | 8642 | static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
8643 | { |
8644 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8645 | } |
8646 | ||
ac3054c4 GKH |
8647 | static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf, |
8648 | size_t count) | |
18ad7996 | 8649 | { |
b21a15f6 HMH |
8650 | unsigned long t; |
8651 | ||
8652 | if (parse_strtoul(buf, 120, &t)) | |
8653 | return -EINVAL; | |
40ca9fdf | 8654 | |
ecf2a80a HMH |
8655 | if (!fan_control_allowed) |
8656 | return -EPERM; | |
8657 | ||
b21a15f6 HMH |
8658 | fan_watchdog_maxinterval = t; |
8659 | fan_watchdog_reset(); | |
40ca9fdf | 8660 | |
74a60c0f HMH |
8661 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8662 | ||
b21a15f6 HMH |
8663 | return count; |
8664 | } | |
ac3054c4 | 8665 | static DRIVER_ATTR_RW(fan_watchdog); |
b21a15f6 HMH |
8666 | |
8667 | /* --------------------------------------------------------------------- */ | |
8668 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8669 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8670 | &dev_attr_fan1_input.attr, | |
d7377247 | 8671 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8672 | NULL |
8673 | }; | |
8674 | ||
8675 | static const struct attribute_group fan_attr_group = { | |
8676 | .attrs = fan_attributes, | |
8677 | }; | |
8678 | ||
d7377247 HMH |
8679 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
8680 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
8681 | |
8682 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
8683 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
8684 | .bios = TPACPI_MATCH_ANY, \ | |
8685 | .ec = TPID(__id1, __id2), \ | |
8686 | .quirks = __quirks } | |
8687 | ||
d7377247 HMH |
8688 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
8689 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
8690 | .bios = TPACPI_MATCH_ANY, \ | |
8691 | .ec = TPID(__id1, __id2), \ | |
8692 | .quirks = __quirks } | |
8693 | ||
7d95a3d5 HMH |
8694 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
8695 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8696 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8697 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8698 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8699 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8700 | }; |
8701 | ||
d7377247 | 8702 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8703 | #undef TPACPI_FAN_QI |
8704 | ||
b21a15f6 HMH |
8705 | static int __init fan_init(struct ibm_init_struct *iibm) |
8706 | { | |
8707 | int rc; | |
7d95a3d5 | 8708 | unsigned long quirks; |
b21a15f6 | 8709 | |
74a60c0f HMH |
8710 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8711 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8712 | |
8713 | mutex_init(&fan_mutex); | |
8714 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8715 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8716 | fan_control_commands = 0; | |
8717 | fan_watchdog_maxinterval = 0; | |
8718 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8719 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8720 | fan_control_desired_level = 7; |
8721 | ||
e28393c0 HMH |
8722 | if (tpacpi_is_ibm()) { |
8723 | TPACPI_ACPIHANDLE_INIT(fans); | |
8724 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8725 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8726 | } | |
b21a15f6 | 8727 | |
7d95a3d5 HMH |
8728 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8729 | ARRAY_SIZE(fan_quirk_table)); | |
8730 | ||
b21a15f6 HMH |
8731 | if (gfan_handle) { |
8732 | /* 570, 600e/x, 770e, 770x */ | |
8733 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8734 | } else { | |
8735 | /* all other ThinkPads: note that even old-style | |
8736 | * ThinkPad ECs supports the fan control register */ | |
8737 | if (likely(acpi_ec_read(fan_status_offset, | |
8738 | &fan_control_initial_status))) { | |
8739 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8740 | if (quirks & TPACPI_FAN_Q1) |
8741 | fan_quirk1_setup(); | |
d7377247 HMH |
8742 | if (quirks & TPACPI_FAN_2FAN) { |
8743 | tp_features.second_fan = 1; | |
8744 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8745 | "secondary fan support enabled\n"); | |
8746 | } | |
b21a15f6 | 8747 | } else { |
5cac62ac | 8748 | pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n"); |
b21a15f6 HMH |
8749 | return 1; |
8750 | } | |
8751 | } | |
8752 | ||
8753 | if (sfan_handle) { | |
8754 | /* 570, 770x-JL */ | |
8755 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8756 | fan_control_commands |= | |
8757 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8758 | } else { | |
8759 | if (!gfan_handle) { | |
8760 | /* gfan without sfan means no fan control */ | |
8761 | /* all other models implement TP EC 0x2f control */ | |
8762 | ||
8763 | if (fans_handle) { | |
8764 | /* X31, X40, X41 */ | |
8765 | fan_control_access_mode = | |
8766 | TPACPI_FAN_WR_ACPI_FANS; | |
8767 | fan_control_commands |= | |
8768 | TPACPI_FAN_CMD_SPEED | | |
8769 | TPACPI_FAN_CMD_LEVEL | | |
8770 | TPACPI_FAN_CMD_ENABLE; | |
8771 | } else { | |
8772 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8773 | fan_control_commands |= | |
8774 | TPACPI_FAN_CMD_LEVEL | | |
8775 | TPACPI_FAN_CMD_ENABLE; | |
8776 | } | |
fe98a52c | 8777 | } |
b21a15f6 | 8778 | } |
18ad7996 | 8779 | |
74a60c0f HMH |
8780 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8781 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8782 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8783 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8784 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8785 | |
b21a15f6 HMH |
8786 | /* fan control master switch */ |
8787 | if (!fan_control_allowed) { | |
8788 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8789 | fan_control_commands = 0; | |
74a60c0f | 8790 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8791 | "fan control features disabled by parameter\n"); |
18ad7996 | 8792 | } |
40ca9fdf | 8793 | |
b21a15f6 HMH |
8794 | /* update fan_control_desired_level */ |
8795 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8796 | fan_get_status_safe(NULL); | |
fe98a52c | 8797 | |
b21a15f6 HMH |
8798 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8799 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8800 | if (tp_features.second_fan) { |
8801 | /* attach second fan tachometer */ | |
8802 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8803 | &dev_attr_fan2_input.attr; |
d7377247 | 8804 | } |
6b99e356 | 8805 | rc = sysfs_create_group(&tpacpi_hwmon->kobj, |
b21a15f6 | 8806 | &fan_attr_group); |
b21a15f6 HMH |
8807 | if (rc < 0) |
8808 | return rc; | |
9c0a76e1 HMH |
8809 | |
8810 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8811 | &driver_attr_fan_watchdog); | |
8812 | if (rc < 0) { | |
6b99e356 | 8813 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
9c0a76e1 HMH |
8814 | &fan_attr_group); |
8815 | return rc; | |
8816 | } | |
b21a15f6 HMH |
8817 | return 0; |
8818 | } else | |
8819 | return 1; | |
56b6aeb0 HMH |
8820 | } |
8821 | ||
b21a15f6 | 8822 | static void fan_exit(void) |
56b6aeb0 | 8823 | { |
74a60c0f | 8824 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8825 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8826 | |
b21a15f6 | 8827 | /* FIXME: can we really do this unconditionally? */ |
6b99e356 | 8828 | sysfs_remove_group(&tpacpi_hwmon->kobj, &fan_attr_group); |
35ff8b9f HMH |
8829 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8830 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8831 | |
b21a15f6 | 8832 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8833 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8834 | } |
8835 | ||
fd3c3a42 | 8836 | static void fan_suspend(void) |
75700e53 | 8837 | { |
0081b162 HMH |
8838 | int rc; |
8839 | ||
75700e53 HMH |
8840 | if (!fan_control_allowed) |
8841 | return; | |
8842 | ||
8843 | /* Store fan status in cache */ | |
0081b162 HMH |
8844 | fan_control_resume_level = 0; |
8845 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8846 | if (rc < 0) | |
5cac62ac AS |
8847 | pr_notice("failed to read fan level for later restore during resume: %d\n", |
8848 | rc); | |
0081b162 HMH |
8849 | |
8850 | /* if it is undefined, don't attempt to restore it. | |
8851 | * KEEP THIS LAST */ | |
75700e53 | 8852 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8853 | fan_control_resume_level = 0; |
75700e53 HMH |
8854 | } |
8855 | ||
8856 | static void fan_resume(void) | |
8857 | { | |
75700e53 HMH |
8858 | u8 current_level = 7; |
8859 | bool do_set = false; | |
0081b162 | 8860 | int rc; |
75700e53 HMH |
8861 | |
8862 | /* DSDT *always* updates status on resume */ | |
8863 | tp_features.fan_ctrl_status_undef = 0; | |
8864 | ||
75700e53 | 8865 | if (!fan_control_allowed || |
0081b162 | 8866 | !fan_control_resume_level || |
75700e53 HMH |
8867 | (fan_get_status_safe(¤t_level) < 0)) |
8868 | return; | |
8869 | ||
8870 | switch (fan_control_access_mode) { | |
8871 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8872 | /* never decrease fan level */ |
8873 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8874 | break; |
8875 | case TPACPI_FAN_WR_ACPI_FANS: | |
8876 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8877 | /* never decrease fan level, scale is: |
8878 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8879 | * | |
8880 | * We expect the firmware to set either 7 or AUTO, but we | |
8881 | * handle FULLSPEED out of paranoia. | |
8882 | * | |
8883 | * So, we can safely only restore FULLSPEED or 7, anything | |
8884 | * else could slow the fan. Restoring AUTO is useless, at | |
8885 | * best that's exactly what the DSDT already set (it is the | |
8886 | * slower it uses). | |
8887 | * | |
8888 | * Always keep in mind that the DSDT *will* have set the | |
8889 | * fans to what the vendor supposes is the best level. We | |
8890 | * muck with it only to speed the fan up. | |
8891 | */ | |
8892 | if (fan_control_resume_level != 7 && | |
8893 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8894 | return; | |
8895 | else | |
8896 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8897 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8898 | break; |
8899 | default: | |
8900 | return; | |
8901 | } | |
8902 | if (do_set) { | |
0978e012 JP |
8903 | pr_notice("restoring fan level to 0x%02x\n", |
8904 | fan_control_resume_level); | |
0081b162 HMH |
8905 | rc = fan_set_level_safe(fan_control_resume_level); |
8906 | if (rc < 0) | |
0978e012 | 8907 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8908 | } |
8909 | } | |
8910 | ||
887965e6 | 8911 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8912 | { |
56b6aeb0 HMH |
8913 | int rc; |
8914 | u8 status; | |
8915 | unsigned int speed = 0; | |
8916 | ||
8917 | switch (fan_status_access_mode) { | |
efa27145 | 8918 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8919 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8920 | rc = fan_get_status_safe(&status); |
8921 | if (rc < 0) | |
56b6aeb0 HMH |
8922 | return rc; |
8923 | ||
887965e6 | 8924 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8925 | "level:\t\t%d\n", |
8926 | (status != 0) ? "enabled" : "disabled", status); | |
8927 | break; | |
8928 | ||
efa27145 | 8929 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8930 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8931 | rc = fan_get_status_safe(&status); |
8932 | if (rc < 0) | |
56b6aeb0 HMH |
8933 | return rc; |
8934 | ||
887965e6 | 8935 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8936 | (status != 0) ? "enabled" : "disabled"); |
8937 | ||
35ff8b9f HMH |
8938 | rc = fan_get_speed(&speed); |
8939 | if (rc < 0) | |
56b6aeb0 HMH |
8940 | return rc; |
8941 | ||
887965e6 | 8942 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8943 | |
efa27145 | 8944 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8945 | /* Disengaged mode takes precedence */ |
887965e6 | 8946 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8947 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8948 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8949 | else |
887965e6 | 8950 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8951 | break; |
8952 | ||
efa27145 | 8953 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8954 | default: |
887965e6 | 8955 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8956 | } |
8957 | ||
efa27145 | 8958 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8959 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8960 | |
8961 | switch (fan_control_access_mode) { | |
efa27145 | 8962 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8963 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8964 | break; |
8965 | ||
8966 | default: | |
5cac62ac | 8967 | seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8968 | break; |
8969 | } | |
8970 | } | |
18ad7996 | 8971 | |
efa27145 | 8972 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8973 | seq_printf(m, "commands:\tenable, disable\n" |
5cac62ac | 8974 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n"); |
1da177e4 | 8975 | |
efa27145 | 8976 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
5cac62ac | 8977 | seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n"); |
56b6aeb0 | 8978 | |
887965e6 | 8979 | return 0; |
78f81cc4 BD |
8980 | } |
8981 | ||
18ad7996 HMH |
8982 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8983 | { | |
8984 | int level; | |
8985 | ||
a12095c2 | 8986 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8987 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8988 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8989 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8990 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8991 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8992 | return 0; |
8993 | ||
35ff8b9f HMH |
8994 | *rc = fan_set_level_safe(level); |
8995 | if (*rc == -ENXIO) | |
0978e012 JP |
8996 | pr_err("level command accepted for unsupported access mode %d\n", |
8997 | fan_control_access_mode); | |
74a60c0f HMH |
8998 | else if (!*rc) |
8999 | tpacpi_disclose_usertask("procfs fan", | |
9000 | "set level to %d\n", level); | |
18ad7996 HMH |
9001 | |
9002 | return 1; | |
9003 | } | |
9004 | ||
9005 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
9006 | { | |
9007 | if (strlencmp(cmd, "enable") != 0) | |
9008 | return 0; | |
9009 | ||
35ff8b9f HMH |
9010 | *rc = fan_set_enable(); |
9011 | if (*rc == -ENXIO) | |
0978e012 JP |
9012 | pr_err("enable command accepted for unsupported access mode %d\n", |
9013 | fan_control_access_mode); | |
74a60c0f HMH |
9014 | else if (!*rc) |
9015 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
9016 | |
9017 | return 1; | |
9018 | } | |
9019 | ||
9020 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
9021 | { | |
9022 | if (strlencmp(cmd, "disable") != 0) | |
9023 | return 0; | |
9024 | ||
35ff8b9f HMH |
9025 | *rc = fan_set_disable(); |
9026 | if (*rc == -ENXIO) | |
0978e012 JP |
9027 | pr_err("disable command accepted for unsupported access mode %d\n", |
9028 | fan_control_access_mode); | |
74a60c0f HMH |
9029 | else if (!*rc) |
9030 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
9031 | |
9032 | return 1; | |
9033 | } | |
9034 | ||
9035 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
9036 | { | |
9037 | int speed; | |
9038 | ||
a8b7a662 HMH |
9039 | /* TODO: |
9040 | * Support speed <low> <medium> <high> ? */ | |
9041 | ||
18ad7996 HMH |
9042 | if (sscanf(cmd, "speed %d", &speed) != 1) |
9043 | return 0; | |
9044 | ||
35ff8b9f HMH |
9045 | *rc = fan_set_speed(speed); |
9046 | if (*rc == -ENXIO) | |
0978e012 JP |
9047 | pr_err("speed command accepted for unsupported access mode %d\n", |
9048 | fan_control_access_mode); | |
74a60c0f HMH |
9049 | else if (!*rc) |
9050 | tpacpi_disclose_usertask("procfs fan", | |
9051 | "set speed to %d\n", speed); | |
18ad7996 HMH |
9052 | |
9053 | return 1; | |
9054 | } | |
9055 | ||
16663a87 HMH |
9056 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
9057 | { | |
9058 | int interval; | |
9059 | ||
9060 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
9061 | return 0; | |
9062 | ||
9063 | if (interval < 0 || interval > 120) | |
9064 | *rc = -EINVAL; | |
74a60c0f | 9065 | else { |
16663a87 | 9066 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
9067 | tpacpi_disclose_usertask("procfs fan", |
9068 | "set watchdog timer to %d\n", | |
9069 | interval); | |
9070 | } | |
16663a87 HMH |
9071 | |
9072 | return 1; | |
9073 | } | |
9074 | ||
18ad7996 HMH |
9075 | static int fan_write(char *buf) |
9076 | { | |
9077 | char *cmd; | |
9078 | int rc = 0; | |
9079 | ||
9080 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 9081 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 9082 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 9083 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 9084 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
9085 | fan_write_cmd_disable(cmd, &rc) || |
9086 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 9087 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
9088 | fan_write_cmd_speed(cmd, &rc)) |
9089 | ) | |
9090 | rc = -EINVAL; | |
16663a87 HMH |
9091 | else if (!rc) |
9092 | fan_watchdog_reset(); | |
18ad7996 HMH |
9093 | } |
9094 | ||
9095 | return rc; | |
9096 | } | |
9097 | ||
a5763f22 HMH |
9098 | static struct ibm_struct fan_driver_data = { |
9099 | .name = "fan", | |
9100 | .read = fan_read, | |
9101 | .write = fan_write, | |
9102 | .exit = fan_exit, | |
75700e53 HMH |
9103 | .suspend = fan_suspend, |
9104 | .resume = fan_resume, | |
a5763f22 HMH |
9105 | }; |
9106 | ||
420f9739 DH |
9107 | /************************************************************************* |
9108 | * Mute LED subdriver | |
9109 | */ | |
9110 | ||
9111 | ||
9112 | struct tp_led_table { | |
9113 | acpi_string name; | |
9114 | int on_value; | |
9115 | int off_value; | |
9116 | int state; | |
9117 | }; | |
9118 | ||
9119 | static struct tp_led_table led_tables[] = { | |
9120 | [TPACPI_LED_MUTE] = { | |
9121 | .name = "SSMS", | |
9122 | .on_value = 1, | |
9123 | .off_value = 0, | |
9124 | }, | |
9125 | [TPACPI_LED_MICMUTE] = { | |
9126 | .name = "MMTS", | |
9127 | .on_value = 2, | |
9128 | .off_value = 0, | |
9129 | }, | |
9130 | }; | |
9131 | ||
9132 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
9133 | { | |
9134 | acpi_handle temp; | |
9135 | int output; | |
9136 | ||
3526ecad | 9137 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 DH |
9138 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); |
9139 | return -EIO; | |
9140 | } | |
9141 | ||
9142 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
9143 | state ? t->on_value : t->off_value)) | |
9144 | return -EIO; | |
9145 | ||
9146 | t->state = state; | |
9147 | return state; | |
9148 | } | |
9149 | ||
9150 | int tpacpi_led_set(int whichled, bool on) | |
9151 | { | |
9152 | struct tp_led_table *t; | |
9153 | ||
9154 | if (whichled < 0 || whichled >= TPACPI_LED_MAX) | |
9155 | return -EINVAL; | |
9156 | ||
9157 | t = &led_tables[whichled]; | |
9158 | if (t->state < 0 || t->state == on) | |
9159 | return t->state; | |
9160 | return mute_led_on_off(t, on); | |
9161 | } | |
9162 | EXPORT_SYMBOL_GPL(tpacpi_led_set); | |
9163 | ||
9164 | static int mute_led_init(struct ibm_init_struct *iibm) | |
9165 | { | |
9166 | acpi_handle temp; | |
9167 | int i; | |
9168 | ||
9169 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9170 | struct tp_led_table *t = &led_tables[i]; | |
9171 | if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) | |
9172 | mute_led_on_off(t, false); | |
9173 | else | |
9174 | t->state = -ENODEV; | |
9175 | } | |
9176 | return 0; | |
9177 | } | |
9178 | ||
9179 | static void mute_led_exit(void) | |
9180 | { | |
9181 | int i; | |
9182 | ||
9183 | for (i = 0; i < TPACPI_LED_MAX; i++) | |
9184 | tpacpi_led_set(i, false); | |
9185 | } | |
9186 | ||
119f4498 TI |
9187 | static void mute_led_resume(void) |
9188 | { | |
9189 | int i; | |
9190 | ||
9191 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9192 | struct tp_led_table *t = &led_tables[i]; | |
9193 | if (t->state >= 0) | |
9194 | mute_led_on_off(t, t->state); | |
9195 | } | |
9196 | } | |
9197 | ||
420f9739 DH |
9198 | static struct ibm_struct mute_led_driver_data = { |
9199 | .name = "mute_led", | |
9200 | .exit = mute_led_exit, | |
119f4498 | 9201 | .resume = mute_led_resume, |
420f9739 DH |
9202 | }; |
9203 | ||
56b6aeb0 HMH |
9204 | /**************************************************************************** |
9205 | **************************************************************************** | |
9206 | * | |
9207 | * Infrastructure | |
9208 | * | |
9209 | **************************************************************************** | |
9210 | ****************************************************************************/ | |
9211 | ||
8b468c0c HMH |
9212 | /* |
9213 | * HKEY event callout for other subdrivers go here | |
9214 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
9215 | */ | |
9216 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
9217 | { | |
347a2686 HMH |
9218 | if (ibm_backlight_device) { |
9219 | switch (hkey_event) { | |
9220 | case TP_HKEY_EV_BRGHT_UP: | |
9221 | case TP_HKEY_EV_BRGHT_DOWN: | |
9222 | tpacpi_brightness_notify_change(); | |
9223 | } | |
9224 | } | |
0d204c34 HMH |
9225 | if (alsa_card) { |
9226 | switch (hkey_event) { | |
9227 | case TP_HKEY_EV_VOL_UP: | |
9228 | case TP_HKEY_EV_VOL_DOWN: | |
9229 | case TP_HKEY_EV_VOL_MUTE: | |
9230 | volume_alsa_notify_change(); | |
9231 | } | |
9232 | } | |
c685e20d HG |
9233 | if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) { |
9234 | enum led_brightness brightness; | |
9235 | ||
9236 | mutex_lock(&kbdlight_mutex); | |
9237 | ||
9238 | /* | |
9239 | * Check the brightness actually changed, setting the brightness | |
9240 | * through kbdlight_set_level() also triggers this event. | |
9241 | */ | |
9242 | brightness = kbdlight_sysfs_get(NULL); | |
9243 | if (kbdlight_brightness != brightness) { | |
9244 | kbdlight_brightness = brightness; | |
9245 | led_classdev_notify_brightness_hw_changed( | |
9246 | &tpacpi_led_kbdlight.led_classdev, brightness); | |
9247 | } | |
9248 | ||
9249 | mutex_unlock(&kbdlight_mutex); | |
9250 | } | |
8b468c0c HMH |
9251 | } |
9252 | ||
8b468c0c HMH |
9253 | static void hotkey_driver_event(const unsigned int scancode) |
9254 | { | |
67bcae6e | 9255 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
9256 | } |
9257 | ||
7fd40029 HMH |
9258 | /* --------------------------------------------------------------------- */ |
9259 | ||
56b6aeb0 | 9260 | /* /proc support */ |
94954cc6 | 9261 | static struct proc_dir_entry *proc_dir; |
16663a87 | 9262 | |
56b6aeb0 HMH |
9263 | /* |
9264 | * Module and infrastructure proble, init and exit handling | |
9265 | */ | |
1da177e4 | 9266 | |
90ab5ee9 | 9267 | static bool force_load; |
b21a15f6 | 9268 | |
fe08bc4b | 9269 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 9270 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 9271 | { |
a5763f22 | 9272 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 9273 | |
72a979f0 | 9274 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
9275 | } |
9276 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
9277 | ||
b21a15f6 HMH |
9278 | static void ibm_exit(struct ibm_struct *ibm) |
9279 | { | |
9280 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
9281 | ||
9282 | list_del_init(&ibm->all_drivers); | |
9283 | ||
9284 | if (ibm->flags.acpi_notify_installed) { | |
9285 | dbg_printk(TPACPI_DBG_EXIT, | |
9286 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
9287 | BUG_ON(!ibm->acpi); | |
9288 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
9289 | ibm->acpi->type, | |
9290 | dispatch_acpi_notify); | |
9291 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
9292 | } |
9293 | ||
9294 | if (ibm->flags.proc_created) { | |
9295 | dbg_printk(TPACPI_DBG_EXIT, | |
9296 | "%s: remove_proc_entry\n", ibm->name); | |
9297 | remove_proc_entry(ibm->name, proc_dir); | |
9298 | ibm->flags.proc_created = 0; | |
9299 | } | |
9300 | ||
9301 | if (ibm->flags.acpi_driver_registered) { | |
9302 | dbg_printk(TPACPI_DBG_EXIT, | |
9303 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
9304 | BUG_ON(!ibm->acpi); | |
9305 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
9306 | kfree(ibm->acpi->driver); | |
9307 | ibm->acpi->driver = NULL; | |
9308 | ibm->flags.acpi_driver_registered = 0; | |
9309 | } | |
9310 | ||
9311 | if (ibm->flags.init_called && ibm->exit) { | |
9312 | ibm->exit(); | |
9313 | ibm->flags.init_called = 0; | |
9314 | } | |
9315 | ||
9316 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
9317 | } | |
f74a27d4 | 9318 | |
a5763f22 | 9319 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
9320 | { |
9321 | int ret; | |
a5763f22 | 9322 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
9323 | struct proc_dir_entry *entry; |
9324 | ||
a5763f22 HMH |
9325 | BUG_ON(ibm == NULL); |
9326 | ||
9327 | INIT_LIST_HEAD(&ibm->all_drivers); | |
9328 | ||
92641177 | 9329 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
9330 | return 0; |
9331 | ||
fe08bc4b HMH |
9332 | dbg_printk(TPACPI_DBG_INIT, |
9333 | "probing for %s\n", ibm->name); | |
9334 | ||
a5763f22 HMH |
9335 | if (iibm->init) { |
9336 | ret = iibm->init(iibm); | |
5fba344c HMH |
9337 | if (ret > 0) |
9338 | return 0; /* probe failed */ | |
9339 | if (ret) | |
1da177e4 | 9340 | return ret; |
a5763f22 | 9341 | |
92641177 | 9342 | ibm->flags.init_called = 1; |
1da177e4 LT |
9343 | } |
9344 | ||
8d376cd6 HMH |
9345 | if (ibm->acpi) { |
9346 | if (ibm->acpi->hid) { | |
9347 | ret = register_tpacpi_subdriver(ibm); | |
9348 | if (ret) | |
9349 | goto err_out; | |
9350 | } | |
5fba344c | 9351 | |
8d376cd6 HMH |
9352 | if (ibm->acpi->notify) { |
9353 | ret = setup_acpi_notify(ibm); | |
9354 | if (ret == -ENODEV) { | |
0978e012 JP |
9355 | pr_notice("disabling subdriver %s\n", |
9356 | ibm->name); | |
8d376cd6 HMH |
9357 | ret = 0; |
9358 | goto err_out; | |
9359 | } | |
9360 | if (ret < 0) | |
9361 | goto err_out; | |
5fba344c | 9362 | } |
5fba344c HMH |
9363 | } |
9364 | ||
fe08bc4b HMH |
9365 | dbg_printk(TPACPI_DBG_INIT, |
9366 | "%s installed\n", ibm->name); | |
9367 | ||
78f81cc4 | 9368 | if (ibm->read) { |
d161a13f | 9369 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 9370 | |
b525c06c HMH |
9371 | if (!mode) |
9372 | mode = S_IRUGO; | |
887965e6 AD |
9373 | if (ibm->write) |
9374 | mode |= S_IWUSR; | |
9375 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
9376 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 9377 | if (!entry) { |
0978e012 | 9378 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
9379 | ret = -ENODEV; |
9380 | goto err_out; | |
78f81cc4 | 9381 | } |
92641177 | 9382 | ibm->flags.proc_created = 1; |
78f81cc4 | 9383 | } |
1da177e4 | 9384 | |
a5763f22 HMH |
9385 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
9386 | ||
1da177e4 | 9387 | return 0; |
5fba344c HMH |
9388 | |
9389 | err_out: | |
fe08bc4b HMH |
9390 | dbg_printk(TPACPI_DBG_INIT, |
9391 | "%s: at error exit path with result %d\n", | |
9392 | ibm->name, ret); | |
9393 | ||
5fba344c | 9394 | ibm_exit(ibm); |
72a979f0 | 9395 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
9396 | } |
9397 | ||
56b6aeb0 HMH |
9398 | /* Probing */ |
9399 | ||
050df107 HMH |
9400 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
9401 | { | |
9402 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
9403 | } | |
9404 | ||
72a979f0 | 9405 | static bool __pure __init tpacpi_is_valid_fw_id(const char * const s, |
050df107 HMH |
9406 | const char t) |
9407 | { | |
1b0eb5bc AL |
9408 | /* |
9409 | * Most models: xxyTkkWW (#.##c) | |
9410 | * Ancient 570/600 and -SL lacks (#.##c) | |
9411 | */ | |
9412 | if (s && strlen(s) >= 8 && | |
050df107 HMH |
9413 | tpacpi_is_fw_digit(s[0]) && |
9414 | tpacpi_is_fw_digit(s[1]) && | |
16a3d9f5 MI |
9415 | s[2] == t && |
9416 | (s[3] == 'T' || s[3] == 'N') && | |
050df107 | 9417 | tpacpi_is_fw_digit(s[4]) && |
1b0eb5bc AL |
9418 | tpacpi_is_fw_digit(s[5])) |
9419 | return true; | |
9420 | ||
9421 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
9422 | return s && strlen(s) >= 8 && | |
9423 | tpacpi_is_fw_digit(s[0]) && | |
9424 | tpacpi_is_fw_digit(s[1]) && | |
9425 | tpacpi_is_fw_digit(s[2]) && | |
9426 | s[3] == t && | |
9427 | (s[4] == 'T' || s[4] == 'N') && | |
9428 | tpacpi_is_fw_digit(s[5]) && | |
9429 | tpacpi_is_fw_digit(s[6]); | |
050df107 HMH |
9430 | } |
9431 | ||
bf20e740 HMH |
9432 | /* returns 0 - probe ok, or < 0 - probe error. |
9433 | * Probe ok doesn't mean thinkpad found. | |
9434 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
9435 | static int __must_check __init get_thinkpad_model_data( | |
9436 | struct thinkpad_id_data *tp) | |
1da177e4 | 9437 | { |
1855256c | 9438 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 9439 | char ec_fw_string[18]; |
bf20e740 | 9440 | char const *s; |
1da177e4 | 9441 | |
d5a2f2f1 | 9442 | if (!tp) |
bf20e740 | 9443 | return -EINVAL; |
d5a2f2f1 HMH |
9444 | |
9445 | memset(tp, 0, sizeof(*tp)); | |
9446 | ||
9447 | if (dmi_name_in_vendors("IBM")) | |
9448 | tp->vendor = PCI_VENDOR_ID_IBM; | |
9449 | else if (dmi_name_in_vendors("LENOVO")) | |
9450 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
9451 | else | |
bf20e740 | 9452 | return 0; |
d5a2f2f1 | 9453 | |
bf20e740 HMH |
9454 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
9455 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
9456 | if (s && !tp->bios_version_str) | |
9457 | return -ENOMEM; | |
050df107 HMH |
9458 | |
9459 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
16a3d9f5 MI |
9460 | if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') || |
9461 | tpacpi_is_valid_fw_id(tp->bios_version_str, 'C'))) | |
bf20e740 | 9462 | return 0; |
050df107 | 9463 | |
d5a2f2f1 HMH |
9464 | tp->bios_model = tp->bios_version_str[0] |
9465 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
9466 | tp->bios_release = (tp->bios_version_str[4] << 8) |
9467 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 9468 | |
56b6aeb0 HMH |
9469 | /* |
9470 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
9471 | * X32 or newer, all Z series; Some models must have an | |
9472 | * up-to-date BIOS or they will not be detected. | |
9473 | * | |
9474 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9475 | */ | |
9476 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
9477 | if (sscanf(dev->name, | |
9478 | "IBM ThinkPad Embedded Controller -[%17c", | |
9479 | ec_fw_string) == 1) { | |
9480 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
9481 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
9482 | |
9483 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
9484 | if (!tp->ec_version_str) |
9485 | return -ENOMEM; | |
050df107 HMH |
9486 | |
9487 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
9488 | tp->ec_model = ec_fw_string[0] | |
9489 | | (ec_fw_string[1] << 8); | |
9490 | tp->ec_release = (ec_fw_string[4] << 8) | |
9491 | | ec_fw_string[5]; | |
9492 | } else { | |
5cac62ac | 9493 | pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", |
0978e012 JP |
9494 | ec_fw_string); |
9495 | pr_notice("please report this to %s\n", | |
9496 | TPACPI_MAIL); | |
050df107 | 9497 | } |
d5a2f2f1 | 9498 | break; |
78f81cc4 | 9499 | } |
1da177e4 | 9500 | } |
d5a2f2f1 | 9501 | |
bf20e740 | 9502 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 9503 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
9504 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9505 | if (!tp->model_str) | |
9506 | return -ENOMEM; | |
a4f46bb9 MI |
9507 | } else { |
9508 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 9509 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
9510 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9511 | if (!tp->model_str) | |
9512 | return -ENOMEM; | |
9513 | } | |
d5a2f2f1 | 9514 | } |
8c74adbc | 9515 | |
bf20e740 HMH |
9516 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
9517 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
9518 | if (s && !tp->nummodel_str) | |
9519 | return -ENOMEM; | |
9520 | ||
9521 | return 0; | |
1da177e4 LT |
9522 | } |
9523 | ||
5fba344c HMH |
9524 | static int __init probe_for_thinkpad(void) |
9525 | { | |
9526 | int is_thinkpad; | |
9527 | ||
9528 | if (acpi_disabled) | |
9529 | return -ENODEV; | |
9530 | ||
e28393c0 HMH |
9531 | /* It would be dangerous to run the driver in this case */ |
9532 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
9533 | return -ENODEV; | |
9534 | ||
5fba344c HMH |
9535 | /* |
9536 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 9537 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 9538 | */ |
e675abaf HMH |
9539 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
9540 | (thinkpad_id.ec_model != 0) || | |
9541 | tpacpi_is_fw_known(); | |
5fba344c | 9542 | |
437e470c HMH |
9543 | /* The EC handler is required */ |
9544 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
9545 | if (!ec_handle) { |
9546 | if (is_thinkpad) | |
0978e012 | 9547 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
9548 | return -ENODEV; |
9549 | } | |
9550 | ||
0dcef77c HMH |
9551 | if (!is_thinkpad && !force_load) |
9552 | return -ENODEV; | |
9553 | ||
5fba344c HMH |
9554 | return 0; |
9555 | } | |
9556 | ||
7a43f788 HMH |
9557 | static void __init thinkpad_acpi_init_banner(void) |
9558 | { | |
0978e012 JP |
9559 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
9560 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 9561 | |
0978e012 | 9562 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
9563 | (thinkpad_id.bios_version_str) ? |
9564 | thinkpad_id.bios_version_str : "unknown", | |
9565 | (thinkpad_id.ec_version_str) ? | |
9566 | thinkpad_id.ec_version_str : "unknown"); | |
9567 | ||
9568 | BUG_ON(!thinkpad_id.vendor); | |
9569 | ||
9570 | if (thinkpad_id.model_str) | |
0978e012 | 9571 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
9572 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
9573 | "IBM" : ((thinkpad_id.vendor == | |
9574 | PCI_VENDOR_ID_LENOVO) ? | |
9575 | "Lenovo" : "Unknown vendor"), | |
9576 | thinkpad_id.model_str, | |
9577 | (thinkpad_id.nummodel_str) ? | |
9578 | thinkpad_id.nummodel_str : "unknown"); | |
9579 | } | |
5fba344c | 9580 | |
56b6aeb0 | 9581 | /* Module init, exit, parameters */ |
1da177e4 | 9582 | |
a5763f22 HMH |
9583 | static struct ibm_init_struct ibms_init[] __initdata = { |
9584 | { | |
a5763f22 HMH |
9585 | .data = &thinkpad_acpi_driver_data, |
9586 | }, | |
9587 | { | |
9588 | .init = hotkey_init, | |
9589 | .data = &hotkey_driver_data, | |
9590 | }, | |
9591 | { | |
9592 | .init = bluetooth_init, | |
9593 | .data = &bluetooth_driver_data, | |
9594 | }, | |
9595 | { | |
9596 | .init = wan_init, | |
9597 | .data = &wan_driver_data, | |
9598 | }, | |
0045c0aa HMH |
9599 | { |
9600 | .init = uwb_init, | |
9601 | .data = &uwb_driver_data, | |
9602 | }, | |
d7c1d17d | 9603 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
9604 | { |
9605 | .init = video_init, | |
b525c06c | 9606 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
9607 | .data = &video_driver_data, |
9608 | }, | |
d7c1d17d | 9609 | #endif |
bb28f3d5 PR |
9610 | { |
9611 | .init = kbdlight_init, | |
9612 | .data = &kbdlight_driver_data, | |
9613 | }, | |
a5763f22 HMH |
9614 | { |
9615 | .init = light_init, | |
9616 | .data = &light_driver_data, | |
9617 | }, | |
a5763f22 HMH |
9618 | { |
9619 | .init = cmos_init, | |
9620 | .data = &cmos_driver_data, | |
9621 | }, | |
9622 | { | |
9623 | .init = led_init, | |
9624 | .data = &led_driver_data, | |
9625 | }, | |
9626 | { | |
9627 | .init = beep_init, | |
9628 | .data = &beep_driver_data, | |
9629 | }, | |
9630 | { | |
9631 | .init = thermal_init, | |
9632 | .data = &thermal_driver_data, | |
9633 | }, | |
a5763f22 HMH |
9634 | { |
9635 | .init = brightness_init, | |
9636 | .data = &brightness_driver_data, | |
9637 | }, | |
9638 | { | |
329e4e18 | 9639 | .init = volume_init, |
a5763f22 HMH |
9640 | .data = &volume_driver_data, |
9641 | }, | |
9642 | { | |
9643 | .init = fan_init, | |
9644 | .data = &fan_driver_data, | |
9645 | }, | |
420f9739 DH |
9646 | { |
9647 | .init = mute_led_init, | |
9648 | .data = &mute_led_driver_data, | |
9649 | }, | |
a5763f22 HMH |
9650 | }; |
9651 | ||
e4dca7b7 | 9652 | static int __init set_ibm_param(const char *val, const struct kernel_param *kp) |
1da177e4 LT |
9653 | { |
9654 | unsigned int i; | |
a5763f22 | 9655 | struct ibm_struct *ibm; |
1da177e4 | 9656 | |
59f91ff1 HMH |
9657 | if (!kp || !kp->name || !val) |
9658 | return -EINVAL; | |
9659 | ||
a5763f22 HMH |
9660 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9661 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
9662 | WARN_ON(ibm == NULL); |
9663 | ||
9664 | if (!ibm || !ibm->name) | |
9665 | continue; | |
a5763f22 HMH |
9666 | |
9667 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
9668 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 9669 | return -ENOSPC; |
a5763f22 HMH |
9670 | strcpy(ibms_init[i].param, val); |
9671 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
9672 | return 0; |
9673 | } | |
a5763f22 | 9674 | } |
1da177e4 | 9675 | |
1da177e4 LT |
9676 | return -EINVAL; |
9677 | } | |
9678 | ||
b09c7225 | 9679 | module_param(experimental, int, 0444); |
f68080f8 | 9680 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 9681 | "Enables experimental features when non-zero"); |
56b6aeb0 | 9682 | |
132ce091 | 9683 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 9684 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 9685 | |
b09c7225 | 9686 | module_param(force_load, bool, 0444); |
f68080f8 | 9687 | MODULE_PARM_DESC(force_load, |
5cac62ac | 9688 | "Attempts to load the driver even on a mis-identified ThinkPad when true"); |
0dcef77c | 9689 | |
b09c7225 | 9690 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 9691 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 9692 | "Enables setting fan parameters features when true"); |
ecf2a80a | 9693 | |
b09c7225 | 9694 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 9695 | MODULE_PARM_DESC(brightness_mode, |
5cac62ac | 9696 | "Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 9697 | |
b09c7225 | 9698 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 9699 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 9700 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 9701 | |
ff850c33 | 9702 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
9703 | module_param_named(volume_mode, volume_mode, uint, 0444); |
9704 | MODULE_PARM_DESC(volume_mode, | |
5cac62ac | 9705 | "Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); |
329e4e18 | 9706 | |
a112ceee HMH |
9707 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
9708 | MODULE_PARM_DESC(volume_capabilities, | |
5cac62ac | 9709 | "Selects the mixer capabilites: 0=auto, 1=volume and mute, 2=mute only"); |
a112ceee | 9710 | |
c7ac6291 HMH |
9711 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
9712 | MODULE_PARM_DESC(volume_control, | |
5cac62ac | 9713 | "Enables software override for the console audio control when true"); |
c7ac6291 | 9714 | |
9a417ec0 AL |
9715 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
9716 | MODULE_PARM_DESC(software_mute, | |
9717 | "Request full software mute control"); | |
9718 | ||
0d204c34 HMH |
9719 | /* ALSA module API parameters */ |
9720 | module_param_named(index, alsa_index, int, 0444); | |
9721 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
9722 | module_param_named(id, alsa_id, charp, 0444); | |
9723 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
9724 | module_param_named(enable, alsa_enable, bool, 0444); | |
9725 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 9726 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 9727 | |
9b4bbbd2 | 9728 | /* The module parameter can't be read back, that's why 0 is used here */ |
e0c7dfe7 | 9729 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 9730 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5cac62ac | 9731 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") |
1da177e4 | 9732 | |
e0c7dfe7 HMH |
9733 | TPACPI_PARAM(hotkey); |
9734 | TPACPI_PARAM(bluetooth); | |
9735 | TPACPI_PARAM(video); | |
9736 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
9737 | TPACPI_PARAM(cmos); |
9738 | TPACPI_PARAM(led); | |
9739 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
9740 | TPACPI_PARAM(brightness); |
9741 | TPACPI_PARAM(volume); | |
9742 | TPACPI_PARAM(fan); | |
78f81cc4 | 9743 | |
a73f3091 | 9744 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 9745 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
9746 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
9747 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
9748 | MODULE_PARM_DESC(wlsw_state, | |
9749 | "Initial state of the emulated WLSW switch"); | |
9750 | ||
b09c7225 | 9751 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
9752 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
9753 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
9754 | MODULE_PARM_DESC(bluetooth_state, | |
9755 | "Initial state of the emulated bluetooth switch"); | |
9756 | ||
b09c7225 | 9757 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
9758 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
9759 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
9760 | MODULE_PARM_DESC(wwan_state, | |
9761 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 9762 | |
b09c7225 | 9763 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
9764 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
9765 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
9766 | MODULE_PARM_DESC(uwb_state, | |
9767 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
9768 | #endif |
9769 | ||
b21a15f6 HMH |
9770 | static void thinkpad_acpi_module_exit(void) |
9771 | { | |
9772 | struct ibm_struct *ibm, *itmp; | |
9773 | ||
9774 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
9775 | ||
9776 | list_for_each_entry_safe_reverse(ibm, itmp, | |
9777 | &tpacpi_all_drivers, | |
9778 | all_drivers) { | |
9779 | ibm_exit(ibm); | |
9780 | } | |
9781 | ||
9782 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
9783 | ||
9784 | if (tpacpi_inputdev) { | |
9785 | if (tp_features.input_device_registered) | |
9786 | input_unregister_device(tpacpi_inputdev); | |
9787 | else | |
9788 | input_free_device(tpacpi_inputdev); | |
00d39597 | 9789 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
9790 | } |
9791 | ||
9792 | if (tpacpi_hwmon) | |
9793 | hwmon_device_unregister(tpacpi_hwmon); | |
9794 | ||
b21a15f6 HMH |
9795 | if (tpacpi_sensors_pdev) |
9796 | platform_device_unregister(tpacpi_sensors_pdev); | |
9797 | if (tpacpi_pdev) | |
9798 | platform_device_unregister(tpacpi_pdev); | |
9799 | ||
9800 | if (tp_features.sensors_pdrv_attrs_registered) | |
9801 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
9802 | if (tp_features.platform_drv_attrs_registered) | |
9803 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
9804 | ||
9805 | if (tp_features.sensors_pdrv_registered) | |
9806 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
9807 | ||
9808 | if (tp_features.platform_drv_registered) | |
9809 | platform_driver_unregister(&tpacpi_pdriver); | |
9810 | ||
9811 | if (proc_dir) | |
e0c7dfe7 | 9812 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9813 | |
e0e3c061 HMH |
9814 | if (tpacpi_wq) |
9815 | destroy_workqueue(tpacpi_wq); | |
9816 | ||
b21a15f6 HMH |
9817 | kfree(thinkpad_id.bios_version_str); |
9818 | kfree(thinkpad_id.ec_version_str); | |
9819 | kfree(thinkpad_id.model_str); | |
d2be15bd | 9820 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
9821 | } |
9822 | ||
f74a27d4 | 9823 | |
1def7115 | 9824 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9825 | { |
9826 | int ret, i; | |
9827 | ||
8fef502e HMH |
9828 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9829 | ||
54ae1501 | 9830 | /* Driver-level probe */ |
d5a2f2f1 | 9831 | |
bf20e740 HMH |
9832 | ret = get_thinkpad_model_data(&thinkpad_id); |
9833 | if (ret) { | |
0978e012 | 9834 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
9835 | thinkpad_acpi_module_exit(); |
9836 | return ret; | |
9837 | } | |
5fba344c | 9838 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9839 | if (ret) { |
9840 | thinkpad_acpi_module_exit(); | |
5fba344c | 9841 | return ret; |
d5a2f2f1 | 9842 | } |
1da177e4 | 9843 | |
54ae1501 | 9844 | /* Driver initialization */ |
d5a2f2f1 | 9845 | |
7a43f788 HMH |
9846 | thinkpad_acpi_init_banner(); |
9847 | tpacpi_check_outdated_fw(); | |
9848 | ||
e0c7dfe7 HMH |
9849 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9850 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9851 | |
e0e3c061 HMH |
9852 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9853 | if (!tpacpi_wq) { | |
9854 | thinkpad_acpi_module_exit(); | |
9855 | return -ENOMEM; | |
9856 | } | |
9857 | ||
e0c7dfe7 | 9858 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9859 | if (!proc_dir) { |
0978e012 | 9860 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 9861 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9862 | return -ENODEV; |
9863 | } | |
78f81cc4 | 9864 | |
54ae1501 HMH |
9865 | ret = platform_driver_register(&tpacpi_pdriver); |
9866 | if (ret) { | |
0978e012 | 9867 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
9868 | thinkpad_acpi_module_exit(); |
9869 | return ret; | |
9870 | } | |
ac36393d HMH |
9871 | tp_features.platform_drv_registered = 1; |
9872 | ||
7fd40029 HMH |
9873 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9874 | if (ret) { | |
0978e012 | 9875 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
9876 | thinkpad_acpi_module_exit(); |
9877 | return ret; | |
9878 | } | |
9879 | tp_features.sensors_pdrv_registered = 1; | |
9880 | ||
176750d6 | 9881 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9882 | if (!ret) { |
9883 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9884 | ret = tpacpi_create_driver_attributes( |
9885 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9886 | } |
176750d6 | 9887 | if (ret) { |
0978e012 | 9888 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
9889 | thinkpad_acpi_module_exit(); |
9890 | return ret; | |
9891 | } | |
2369cc94 | 9892 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9893 | |
54ae1501 HMH |
9894 | |
9895 | /* Device initialization */ | |
e0c7dfe7 | 9896 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9897 | NULL, 0); |
9898 | if (IS_ERR(tpacpi_pdev)) { | |
9899 | ret = PTR_ERR(tpacpi_pdev); | |
9900 | tpacpi_pdev = NULL; | |
0978e012 | 9901 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
9902 | thinkpad_acpi_module_exit(); |
9903 | return ret; | |
9904 | } | |
7fd40029 | 9905 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9906 | TPACPI_HWMON_DRVR_NAME, |
9907 | -1, NULL, 0); | |
7fd40029 HMH |
9908 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9909 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9910 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 9911 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
9912 | thinkpad_acpi_module_exit(); |
9913 | return ret; | |
9914 | } | |
7fd40029 | 9915 | tp_features.sensors_pdev_attrs_registered = 1; |
6b99e356 SF |
9916 | tpacpi_hwmon = hwmon_device_register_with_groups( |
9917 | &tpacpi_sensors_pdev->dev, TPACPI_NAME, NULL, NULL); | |
9918 | ||
54ae1501 HMH |
9919 | if (IS_ERR(tpacpi_hwmon)) { |
9920 | ret = PTR_ERR(tpacpi_hwmon); | |
9921 | tpacpi_hwmon = NULL; | |
0978e012 | 9922 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
9923 | thinkpad_acpi_module_exit(); |
9924 | return ret; | |
9925 | } | |
8523ed6f | 9926 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9927 | tpacpi_inputdev = input_allocate_device(); |
9928 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
9929 | thinkpad_acpi_module_exit(); |
9930 | return -ENOMEM; | |
9931 | } else { | |
9932 | /* Prepare input device, but don't register */ | |
9933 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9934 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9935 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9936 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9937 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9938 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9939 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9940 | } |
77775838 HMH |
9941 | |
9942 | /* Init subdriver dependencies */ | |
9943 | tpacpi_detect_brightness_capabilities(); | |
9944 | ||
9945 | /* Init subdrivers */ | |
a5763f22 HMH |
9946 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9947 | ret = ibm_init(&ibms_init[i]); | |
9948 | if (ret >= 0 && *ibms_init[i].param) | |
9949 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9950 | if (ret < 0) { |
1def7115 | 9951 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9952 | return ret; |
9953 | } | |
9954 | } | |
b589ea4c HMH |
9955 | |
9956 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9957 | ||
7f5d1cd6 HMH |
9958 | ret = input_register_device(tpacpi_inputdev); |
9959 | if (ret < 0) { | |
0978e012 | 9960 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
9961 | thinkpad_acpi_module_exit(); |
9962 | return ret; | |
9963 | } else { | |
9964 | tp_features.input_device_registered = 1; | |
9965 | } | |
1da177e4 LT |
9966 | |
9967 | return 0; | |
9968 | } | |
9969 | ||
95e57ab2 HMH |
9970 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9971 | ||
922fe097 HMH |
9972 | /* |
9973 | * This will autoload the driver in almost every ThinkPad | |
9974 | * in widespread use. | |
9975 | * | |
9976 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9977 | * the HKEY event interface. | |
9978 | */ | |
9979 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9980 | ||
f68080f8 HMH |
9981 | /* |
9982 | * DMI matching for module autoloading | |
9983 | * | |
9984 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9985 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9986 | * | |
9987 | * Only models listed in thinkwiki will be supported, so add yours | |
9988 | * if it is not there yet. | |
9989 | */ | |
9990 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9991 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9992 | |
f68080f8 HMH |
9993 | /* Ancient thinkpad BIOSes have to be identified by |
9994 | * BIOS type or model number, and there are far less | |
9995 | * BIOS types than model numbers... */ | |
922fe097 | 9996 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9997 | |
f68f53a2 HMH |
9998 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9999 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
10000 | MODULE_DESCRIPTION(TPACPI_DESC); |
10001 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
10002 | MODULE_LICENSE("GPL"); |
10003 | ||
1def7115 HMH |
10004 | module_init(thinkpad_acpi_module_init); |
10005 | module_exit(thinkpad_acpi_module_exit); |