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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" |
a112ceee | 27 | #define TPACPI_SYSFS_VERSION 0x020700 |
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 */ | |
166 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
167 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
168 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
169 | ||
170 | /* Reasons for waking up from S3/S4 */ | |
171 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
172 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
173 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
174 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
175 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
176 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
177 | ||
178 | /* Auto-sleep after eject request */ | |
179 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
180 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
181 | ||
182 | /* Misc bay events */ | |
183 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
184 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
185 | or port replicator */ | |
186 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
187 | dock or port replicator */ | |
67bcae6e HMH |
188 | |
189 | /* User-interface events */ | |
190 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
191 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
192 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
193 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
b03f4d49 L |
194 | TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): |
195 | * enter/leave tablet mode | |
196 | */ | |
67bcae6e HMH |
197 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ |
198 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
199 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
200 | ||
2d43f671 HMH |
201 | /* Key-related user-interface events */ |
202 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
203 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 204 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 205 | |
67bcae6e HMH |
206 | /* Thermal events */ |
207 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
208 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
209 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
210 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
211 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
212 | ||
6f62bc3e RH |
213 | /* AC-related events */ |
214 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 215 | |
67bcae6e HMH |
216 | /* Misc */ |
217 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
218 | }; | |
219 | ||
b21a15f6 HMH |
220 | /**************************************************************************** |
221 | * Main driver | |
222 | */ | |
223 | ||
e0c7dfe7 HMH |
224 | #define TPACPI_NAME "thinkpad" |
225 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
226 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
227 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
228 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 229 | |
e0c7dfe7 HMH |
230 | #define TPACPI_PROC_DIR "ibm" |
231 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
232 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 233 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 234 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 235 | |
95e57ab2 | 236 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 237 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 238 | |
e0c7dfe7 | 239 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 240 | |
7ff8d62f | 241 | /* Debugging printk groups */ |
0c78039f | 242 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 243 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
244 | #define TPACPI_DBG_INIT 0x0001 |
245 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 246 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 247 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 248 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 249 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 250 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 251 | |
35ff8b9f HMH |
252 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
253 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
254 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 255 | |
0c78039f HMH |
256 | |
257 | /**************************************************************************** | |
b21a15f6 | 258 | * Driver-wide structs and misc. variables |
0c78039f HMH |
259 | */ |
260 | ||
261 | struct ibm_struct; | |
262 | ||
263 | struct tp_acpi_drv_struct { | |
264 | const struct acpi_device_id *hid; | |
265 | struct acpi_driver *driver; | |
266 | ||
267 | void (*notify) (struct ibm_struct *, u32); | |
268 | acpi_handle *handle; | |
269 | u32 type; | |
270 | struct acpi_device *device; | |
271 | }; | |
272 | ||
273 | struct ibm_struct { | |
274 | char *name; | |
275 | ||
887965e6 | 276 | int (*read) (struct seq_file *); |
0c78039f HMH |
277 | int (*write) (char *); |
278 | void (*exit) (void); | |
279 | void (*resume) (void); | |
fd3c3a42 | 280 | void (*suspend) (void); |
90d9d3c7 | 281 | void (*shutdown) (void); |
0c78039f HMH |
282 | |
283 | struct list_head all_drivers; | |
284 | ||
285 | struct tp_acpi_drv_struct *acpi; | |
286 | ||
287 | struct { | |
288 | u8 acpi_driver_registered:1; | |
289 | u8 acpi_notify_installed:1; | |
290 | u8 proc_created:1; | |
291 | u8 init_called:1; | |
292 | u8 experimental:1; | |
293 | } flags; | |
294 | }; | |
295 | ||
296 | struct ibm_init_struct { | |
297 | char param[32]; | |
298 | ||
299 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 300 | umode_t base_procfs_mode; |
0c78039f HMH |
301 | struct ibm_struct *data; |
302 | }; | |
303 | ||
304 | static struct { | |
0c78039f HMH |
305 | u32 bluetooth:1; |
306 | u32 hotkey:1; | |
307 | u32 hotkey_mask:1; | |
308 | u32 hotkey_wlsw:1; | |
b3180028 L |
309 | enum { |
310 | TP_HOTKEY_TABLET_NONE = 0, | |
311 | TP_HOTKEY_TABLET_USES_MHKG, | |
b03f4d49 L |
312 | /* X1 Yoga 2016, seen on BIOS N1FET44W */ |
313 | TP_HOTKEY_TABLET_USES_CMMD, | |
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 | ||
4fa6811b HMH |
375 | /* Special LED class that can defer work */ |
376 | struct tpacpi_led_classdev { | |
377 | struct led_classdev led_classdev; | |
378 | struct work_struct work; | |
75bd3bf2 | 379 | enum led_status_t new_state; |
edf2d778 | 380 | int led; |
4fa6811b HMH |
381 | }; |
382 | ||
77775838 HMH |
383 | /* brightness level capabilities */ |
384 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
385 | ||
a73f3091 HMH |
386 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
387 | static int dbg_wlswemul; | |
90ab5ee9 | 388 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 389 | static int dbg_bluetoothemul; |
90ab5ee9 | 390 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 391 | static int dbg_wwanemul; |
90ab5ee9 | 392 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 393 | static int dbg_uwbemul; |
90ab5ee9 | 394 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
395 | #endif |
396 | ||
397 | ||
3dcc2c3b HMH |
398 | /************************************************************************* |
399 | * Debugging helpers | |
400 | */ | |
401 | ||
0978e012 JP |
402 | #define dbg_printk(a_dbg_level, format, arg...) \ |
403 | do { \ | |
404 | if (dbg_level & (a_dbg_level)) \ | |
405 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
406 | __func__, ##arg); \ | |
407 | } while (0) | |
3dcc2c3b HMH |
408 | |
409 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
410 | #define vdbg_printk dbg_printk | |
411 | static const char *str_supported(int is_supported); | |
412 | #else | |
0978e012 JP |
413 | static inline const char *str_supported(int is_supported) { return ""; } |
414 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 415 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
416 | #endif |
417 | ||
73a94d86 HMH |
418 | static void tpacpi_log_usertask(const char * const what) |
419 | { | |
0978e012 JP |
420 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
421 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
422 | } |
423 | ||
0978e012 JP |
424 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
425 | do { \ | |
426 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
427 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
428 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
429 | what, task_tgid_vnr(current), ## arg); \ | |
430 | } \ | |
431 | } while (0) | |
3dcc2c3b | 432 | |
7d95a3d5 HMH |
433 | /* |
434 | * Quirk handling helpers | |
435 | * | |
436 | * ThinkPad IDs and versions seen in the field so far | |
437 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
438 | * | |
439 | * We use values well outside that range as specials. | |
440 | */ | |
441 | ||
442 | #define TPACPI_MATCH_ANY 0xffffU | |
443 | #define TPACPI_MATCH_UNKNOWN 0U | |
444 | ||
445 | /* TPID('1', 'Y') == 0x5931 */ | |
446 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
447 | ||
448 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
449 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
450 | .bios = TPID(__id1, __id2), \ | |
451 | .ec = TPACPI_MATCH_ANY, \ | |
452 | .quirks = (__quirk) } | |
453 | ||
454 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
455 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
456 | .bios = TPID(__id1, __id2), \ | |
457 | .ec = TPACPI_MATCH_ANY, \ | |
458 | .quirks = (__quirk) } | |
459 | ||
a112ceee HMH |
460 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
461 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
462 | .bios = TPACPI_MATCH_ANY, \ | |
463 | .ec = TPID(__id1, __id2), \ | |
464 | .quirks = (__quirk) } | |
465 | ||
7d95a3d5 HMH |
466 | struct tpacpi_quirk { |
467 | unsigned int vendor; | |
468 | u16 bios; | |
469 | u16 ec; | |
470 | unsigned long quirks; | |
471 | }; | |
472 | ||
473 | /** | |
474 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
475 | * @qlist: array of &struct tpacpi_quirk | |
476 | * @qlist_size: number of elements in @qlist | |
477 | * | |
478 | * Iterates over a quirks list until one is found that matches the | |
479 | * ThinkPad's vendor, BIOS and EC model. | |
480 | * | |
481 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
482 | * the matching &struct tpacpi_quirk entry. | |
483 | * | |
484 | * The match criteria is: vendor, ec and bios much match. | |
485 | */ | |
486 | static unsigned long __init tpacpi_check_quirks( | |
487 | const struct tpacpi_quirk *qlist, | |
488 | unsigned int qlist_size) | |
489 | { | |
490 | while (qlist_size) { | |
491 | if ((qlist->vendor == thinkpad_id.vendor || | |
492 | qlist->vendor == TPACPI_MATCH_ANY) && | |
493 | (qlist->bios == thinkpad_id.bios_model || | |
494 | qlist->bios == TPACPI_MATCH_ANY) && | |
495 | (qlist->ec == thinkpad_id.ec_model || | |
496 | qlist->ec == TPACPI_MATCH_ANY)) | |
497 | return qlist->quirks; | |
498 | ||
499 | qlist_size--; | |
500 | qlist++; | |
501 | } | |
502 | return 0; | |
503 | } | |
504 | ||
e28393c0 HMH |
505 | static inline bool __pure __init tpacpi_is_lenovo(void) |
506 | { | |
507 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
508 | } | |
509 | ||
510 | static inline bool __pure __init tpacpi_is_ibm(void) | |
511 | { | |
512 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
513 | } | |
7d95a3d5 | 514 | |
56b6aeb0 HMH |
515 | /**************************************************************************** |
516 | **************************************************************************** | |
517 | * | |
518 | * ACPI Helpers and device model | |
519 | * | |
520 | **************************************************************************** | |
521 | ****************************************************************************/ | |
522 | ||
523 | /************************************************************************* | |
524 | * ACPI basic handles | |
525 | */ | |
1da177e4 | 526 | |
94954cc6 | 527 | static acpi_handle root_handle; |
437e470c | 528 | static acpi_handle ec_handle; |
1da177e4 | 529 | |
e0c7dfe7 | 530 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 531 | static acpi_handle object##_handle; \ |
3bd01896 | 532 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
533 | &parent##_handle; \ |
534 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 535 | |
e0c7dfe7 HMH |
536 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
537 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 538 | |
35ff8b9f HMH |
539 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
540 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
541 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
542 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 543 | ); /* all others */ |
78f81cc4 | 544 | |
e0c7dfe7 | 545 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
546 | "^HKEY", /* R30, R31 */ |
547 | "HKEY", /* all others */ | |
56b6aeb0 | 548 | ); /* 570 */ |
78f81cc4 | 549 | |
56b6aeb0 HMH |
550 | /************************************************************************* |
551 | * ACPI helpers | |
a8b7a662 HMH |
552 | */ |
553 | ||
1da177e4 | 554 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 555 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
556 | { |
557 | char *fmt0 = fmt; | |
78f81cc4 | 558 | struct acpi_object_list params; |
e0c7dfe7 | 559 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
560 | struct acpi_buffer result, *resultp; |
561 | union acpi_object out_obj; | |
562 | acpi_status status; | |
563 | va_list ap; | |
564 | char res_type; | |
565 | int success; | |
566 | int quiet; | |
1da177e4 LT |
567 | |
568 | if (!*fmt) { | |
0978e012 | 569 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
570 | return 0; |
571 | } | |
572 | ||
573 | if (*fmt == 'q') { | |
574 | quiet = 1; | |
575 | fmt++; | |
576 | } else | |
577 | quiet = 0; | |
578 | ||
579 | res_type = *(fmt++); | |
580 | ||
581 | params.count = 0; | |
582 | params.pointer = &in_objs[0]; | |
583 | ||
584 | va_start(ap, fmt); | |
585 | while (*fmt) { | |
586 | char c = *(fmt++); | |
587 | switch (c) { | |
588 | case 'd': /* int */ | |
589 | in_objs[params.count].integer.value = va_arg(ap, int); | |
590 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
591 | break; | |
78f81cc4 | 592 | /* add more types as needed */ |
1da177e4 | 593 | default: |
0978e012 | 594 | pr_err("acpi_evalf() called " |
1da177e4 | 595 | "with invalid format character '%c'\n", c); |
21365851 | 596 | va_end(ap); |
1da177e4 LT |
597 | return 0; |
598 | } | |
599 | } | |
600 | va_end(ap); | |
601 | ||
78f81cc4 BD |
602 | if (res_type != 'v') { |
603 | result.length = sizeof(out_obj); | |
604 | result.pointer = &out_obj; | |
605 | resultp = &result; | |
606 | } else | |
607 | resultp = NULL; | |
1da177e4 | 608 | |
78f81cc4 | 609 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
610 | |
611 | switch (res_type) { | |
78f81cc4 | 612 | case 'd': /* int */ |
263f4a30 HMH |
613 | success = (status == AE_OK && |
614 | out_obj.type == ACPI_TYPE_INTEGER); | |
615 | if (success && res) | |
eceeb437 | 616 | *res = out_obj.integer.value; |
1da177e4 | 617 | break; |
78f81cc4 | 618 | case 'v': /* void */ |
1da177e4 LT |
619 | success = status == AE_OK; |
620 | break; | |
78f81cc4 | 621 | /* add more types as needed */ |
1da177e4 | 622 | default: |
0978e012 | 623 | pr_err("acpi_evalf() called " |
1da177e4 LT |
624 | "with invalid format character '%c'\n", res_type); |
625 | return 0; | |
626 | } | |
627 | ||
56b6aeb0 | 628 | if (!success && !quiet) |
0978e012 | 629 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 630 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
631 | |
632 | return success; | |
633 | } | |
634 | ||
35ff8b9f | 635 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
636 | { |
637 | int v; | |
638 | ||
639 | if (ecrd_handle) { | |
640 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
641 | return 0; | |
642 | *p = v; | |
643 | } else { | |
644 | if (ec_read(i, p) < 0) | |
645 | return 0; | |
646 | } | |
647 | ||
648 | return 1; | |
649 | } | |
650 | ||
651 | static int acpi_ec_write(int i, u8 v) | |
652 | { | |
653 | if (ecwr_handle) { | |
654 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
655 | return 0; | |
656 | } else { | |
657 | if (ec_write(i, v) < 0) | |
658 | return 0; | |
659 | } | |
660 | ||
661 | return 1; | |
662 | } | |
663 | ||
c9bea99c HMH |
664 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
665 | { | |
666 | if (!cmos_handle) | |
667 | return -ENXIO; | |
668 | ||
669 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
670 | return -EIO; | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
56b6aeb0 HMH |
675 | /************************************************************************* |
676 | * ACPI device model | |
677 | */ | |
678 | ||
35ff8b9f HMH |
679 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
680 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 681 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 682 | |
ef07a5ab HMH |
683 | static void __init drv_acpi_handle_init(const char *name, |
684 | acpi_handle *handle, const acpi_handle parent, | |
685 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
686 | { |
687 | int i; | |
688 | acpi_status status; | |
689 | ||
5ae930e6 HMH |
690 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
691 | name); | |
692 | ||
56b6aeb0 HMH |
693 | for (i = 0; i < num_paths; i++) { |
694 | status = acpi_get_handle(parent, paths[i], handle); | |
695 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
696 | dbg_printk(TPACPI_DBG_INIT, |
697 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 698 | paths[i], name); |
56b6aeb0 HMH |
699 | return; |
700 | } | |
701 | } | |
702 | ||
5ae930e6 HMH |
703 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
704 | name); | |
56b6aeb0 HMH |
705 | *handle = NULL; |
706 | } | |
707 | ||
437e470c HMH |
708 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
709 | u32 level, void *context, void **return_value) | |
710 | { | |
46445b6b AL |
711 | struct acpi_device *dev; |
712 | if (!strcmp(context, "video")) { | |
713 | if (acpi_bus_get_device(handle, &dev)) | |
714 | return AE_OK; | |
715 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
716 | return AE_OK; | |
717 | } | |
718 | ||
437e470c HMH |
719 | *(acpi_handle *)return_value = handle; |
720 | ||
721 | return AE_CTRL_TERMINATE; | |
722 | } | |
723 | ||
724 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
725 | const char *hid, | |
726 | acpi_handle *handle) | |
727 | { | |
728 | acpi_status status; | |
729 | acpi_handle device_found; | |
730 | ||
46445b6b | 731 | BUG_ON(!name || !handle); |
437e470c HMH |
732 | vdbg_printk(TPACPI_DBG_INIT, |
733 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 734 | name, hid ? hid : "NULL"); |
437e470c HMH |
735 | |
736 | memset(&device_found, 0, sizeof(device_found)); | |
737 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
738 | (void *)name, &device_found); | |
739 | ||
740 | *handle = NULL; | |
741 | ||
742 | if (ACPI_SUCCESS(status)) { | |
743 | *handle = device_found; | |
744 | dbg_printk(TPACPI_DBG_INIT, | |
745 | "Found ACPI handle for %s\n", name); | |
746 | } else { | |
747 | vdbg_printk(TPACPI_DBG_INIT, | |
748 | "Could not locate an ACPI handle for %s: %s\n", | |
749 | name, acpi_format_exception(status)); | |
750 | } | |
751 | } | |
752 | ||
8d376cd6 | 753 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
754 | { |
755 | struct ibm_struct *ibm = data; | |
756 | ||
8fef502e HMH |
757 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
758 | return; | |
759 | ||
8d376cd6 | 760 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
761 | return; |
762 | ||
8d376cd6 | 763 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
764 | } |
765 | ||
8d376cd6 | 766 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
767 | { |
768 | acpi_status status; | |
5ae930e6 | 769 | int rc; |
56b6aeb0 | 770 | |
8d376cd6 HMH |
771 | BUG_ON(!ibm->acpi); |
772 | ||
773 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
774 | return 0; |
775 | ||
5ae930e6 | 776 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
777 | "setting up ACPI notify for %s\n", ibm->name); |
778 | ||
5ae930e6 HMH |
779 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
780 | if (rc < 0) { | |
0978e012 | 781 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
782 | return -ENODEV; |
783 | } | |
784 | ||
db89b4f0 | 785 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 786 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 787 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 788 | ibm->name); |
56b6aeb0 | 789 | |
8d376cd6 HMH |
790 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
791 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
792 | if (ACPI_FAILURE(status)) { |
793 | if (status == AE_ALREADY_EXISTS) { | |
0978e012 JP |
794 | pr_notice("another device driver is already " |
795 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 796 | } else { |
0978e012 | 797 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 798 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
799 | } |
800 | return -ENODEV; | |
801 | } | |
8d376cd6 | 802 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
803 | return 0; |
804 | } | |
805 | ||
8d376cd6 | 806 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
807 | { |
808 | return 0; | |
809 | } | |
810 | ||
6700121b | 811 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 812 | { |
5ae930e6 | 813 | int rc; |
56b6aeb0 | 814 | |
fe08bc4b HMH |
815 | dbg_printk(TPACPI_DBG_INIT, |
816 | "registering %s as an ACPI driver\n", ibm->name); | |
817 | ||
8d376cd6 HMH |
818 | BUG_ON(!ibm->acpi); |
819 | ||
820 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
821 | if (!ibm->acpi->driver) { | |
0978e012 | 822 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 823 | return -ENOMEM; |
56b6aeb0 HMH |
824 | } |
825 | ||
e0c7dfe7 | 826 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 827 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 828 | |
8d376cd6 | 829 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 830 | |
5ae930e6 HMH |
831 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
832 | if (rc < 0) { | |
0978e012 | 833 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 834 | ibm->name, rc); |
8d376cd6 HMH |
835 | kfree(ibm->acpi->driver); |
836 | ibm->acpi->driver = NULL; | |
5ae930e6 | 837 | } else if (!rc) |
8d376cd6 | 838 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 839 | |
5ae930e6 | 840 | return rc; |
56b6aeb0 HMH |
841 | } |
842 | ||
843 | ||
844 | /**************************************************************************** | |
845 | **************************************************************************** | |
846 | * | |
847 | * Procfs Helpers | |
848 | * | |
849 | **************************************************************************** | |
850 | ****************************************************************************/ | |
851 | ||
887965e6 | 852 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 853 | { |
887965e6 | 854 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
855 | |
856 | if (!ibm || !ibm->read) | |
857 | return -EINVAL; | |
887965e6 AD |
858 | return ibm->read(m); |
859 | } | |
56b6aeb0 | 860 | |
887965e6 AD |
861 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
862 | { | |
d9dda78b | 863 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
864 | } |
865 | ||
887965e6 | 866 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 867 | const char __user *userbuf, |
887965e6 | 868 | size_t count, loff_t *pos) |
56b6aeb0 | 869 | { |
d9dda78b | 870 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
871 | char *kernbuf; |
872 | int ret; | |
873 | ||
874 | if (!ibm || !ibm->write) | |
875 | return -EINVAL; | |
5b05d469 MB |
876 | if (count > PAGE_SIZE - 2) |
877 | return -EINVAL; | |
56b6aeb0 HMH |
878 | |
879 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
880 | if (!kernbuf) | |
881 | return -ENOMEM; | |
1da177e4 | 882 | |
56b6aeb0 HMH |
883 | if (copy_from_user(kernbuf, userbuf, count)) { |
884 | kfree(kernbuf); | |
885 | return -EFAULT; | |
886 | } | |
1da177e4 | 887 | |
56b6aeb0 HMH |
888 | kernbuf[count] = 0; |
889 | strcat(kernbuf, ","); | |
890 | ret = ibm->write(kernbuf); | |
891 | if (ret == 0) | |
892 | ret = count; | |
1da177e4 | 893 | |
56b6aeb0 HMH |
894 | kfree(kernbuf); |
895 | ||
896 | return ret; | |
1da177e4 LT |
897 | } |
898 | ||
887965e6 AD |
899 | static const struct file_operations dispatch_proc_fops = { |
900 | .owner = THIS_MODULE, | |
901 | .open = dispatch_proc_open, | |
902 | .read = seq_read, | |
903 | .llseek = seq_lseek, | |
904 | .release = single_release, | |
905 | .write = dispatch_proc_write, | |
906 | }; | |
907 | ||
1da177e4 LT |
908 | static char *next_cmd(char **cmds) |
909 | { | |
910 | char *start = *cmds; | |
911 | char *end; | |
912 | ||
913 | while ((end = strchr(start, ',')) && end == start) | |
914 | start = end + 1; | |
915 | ||
916 | if (!end) | |
917 | return NULL; | |
918 | ||
919 | *end = 0; | |
920 | *cmds = end + 1; | |
921 | return start; | |
922 | } | |
923 | ||
56b6aeb0 | 924 | |
54ae1501 HMH |
925 | /**************************************************************************** |
926 | **************************************************************************** | |
927 | * | |
7f5d1cd6 | 928 | * Device model: input, hwmon and platform |
54ae1501 HMH |
929 | * |
930 | **************************************************************************** | |
931 | ****************************************************************************/ | |
932 | ||
94954cc6 | 933 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 934 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 935 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 936 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 937 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 938 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 939 | |
3567a4e2 | 940 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 941 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
942 | { |
943 | struct ibm_struct *ibm, *itmp; | |
944 | ||
945 | list_for_each_entry_safe(ibm, itmp, | |
946 | &tpacpi_all_drivers, | |
947 | all_drivers) { | |
948 | if (ibm->suspend) | |
fd3c3a42 | 949 | (ibm->suspend)(); |
083f1760 HMH |
950 | } |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
4959a781 | 955 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
956 | { |
957 | struct ibm_struct *ibm, *itmp; | |
958 | ||
959 | list_for_each_entry_safe(ibm, itmp, | |
960 | &tpacpi_all_drivers, | |
961 | all_drivers) { | |
962 | if (ibm->resume) | |
963 | (ibm->resume)(); | |
964 | } | |
965 | ||
966 | return 0; | |
967 | } | |
3567a4e2 | 968 | #endif |
e295e850 | 969 | |
4959a781 RW |
970 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
971 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
972 | ||
90d9d3c7 HMH |
973 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
974 | { | |
975 | struct ibm_struct *ibm, *itmp; | |
976 | ||
977 | list_for_each_entry_safe(ibm, itmp, | |
978 | &tpacpi_all_drivers, | |
979 | all_drivers) { | |
980 | if (ibm->shutdown) | |
981 | (ibm->shutdown)(); | |
982 | } | |
983 | } | |
984 | ||
54ae1501 HMH |
985 | static struct platform_driver tpacpi_pdriver = { |
986 | .driver = { | |
e0c7dfe7 | 987 | .name = TPACPI_DRVR_NAME, |
4959a781 | 988 | .pm = &tpacpi_pm, |
54ae1501 | 989 | }, |
90d9d3c7 | 990 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
991 | }; |
992 | ||
7fd40029 HMH |
993 | static struct platform_driver tpacpi_hwmon_pdriver = { |
994 | .driver = { | |
e0c7dfe7 | 995 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
996 | }, |
997 | }; | |
54ae1501 | 998 | |
176750d6 | 999 | /************************************************************************* |
b21a15f6 | 1000 | * sysfs support helpers |
176750d6 HMH |
1001 | */ |
1002 | ||
b21a15f6 HMH |
1003 | struct attribute_set { |
1004 | unsigned int members, max_members; | |
1005 | struct attribute_group group; | |
176750d6 HMH |
1006 | }; |
1007 | ||
7252374a HMH |
1008 | struct attribute_set_obj { |
1009 | struct attribute_set s; | |
1010 | struct attribute *a; | |
1011 | } __attribute__((packed)); | |
1012 | ||
1013 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1014 | const char *name) |
7252374a HMH |
1015 | { |
1016 | struct attribute_set_obj *sobj; | |
1017 | ||
1018 | if (max_members == 0) | |
1019 | return NULL; | |
1020 | ||
1021 | /* Allocates space for implicit NULL at the end too */ | |
1022 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1023 | max_members * sizeof(struct attribute *), | |
1024 | GFP_KERNEL); | |
1025 | if (!sobj) | |
1026 | return NULL; | |
1027 | sobj->s.max_members = max_members; | |
1028 | sobj->s.group.attrs = &sobj->a; | |
1029 | sobj->s.group.name = name; | |
1030 | ||
1031 | return &sobj->s; | |
1032 | } | |
1033 | ||
f74a27d4 HMH |
1034 | #define destroy_attr_set(_set) \ |
1035 | kfree(_set); | |
1036 | ||
7252374a | 1037 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1038 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1039 | { |
1040 | if (!s || !attr) | |
1041 | return -EINVAL; | |
1042 | ||
1043 | if (s->members >= s->max_members) | |
1044 | return -ENOMEM; | |
1045 | ||
1046 | s->group.attrs[s->members] = attr; | |
1047 | s->members++; | |
1048 | ||
1049 | return 0; | |
1050 | } | |
1051 | ||
35ff8b9f | 1052 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1053 | struct attribute **attr, |
1054 | unsigned int count) | |
1055 | { | |
1056 | int i, res; | |
1057 | ||
1058 | for (i = 0; i < count; i++) { | |
1059 | res = add_to_attr_set(s, attr[i]); | |
1060 | if (res) | |
1061 | return res; | |
1062 | } | |
1063 | ||
1064 | return 0; | |
1065 | } | |
1066 | ||
35ff8b9f | 1067 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1068 | { |
1069 | sysfs_remove_group(kobj, &s->group); | |
1070 | destroy_attr_set(s); | |
1071 | } | |
1072 | ||
f74a27d4 HMH |
1073 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1074 | sysfs_create_group(_kobj, &_attr_set->group) | |
1075 | ||
7252374a HMH |
1076 | static int parse_strtoul(const char *buf, |
1077 | unsigned long max, unsigned long *value) | |
1078 | { | |
1079 | char *endp; | |
1080 | ||
e7d2860b AGR |
1081 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1082 | endp = skip_spaces(endp); | |
7252374a HMH |
1083 | if (*endp || *value > max) |
1084 | return -EINVAL; | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
d64c81c4 HMH |
1089 | static void tpacpi_disable_brightness_delay(void) |
1090 | { | |
1091 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1092 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1093 | } |
1094 | ||
19d337df JB |
1095 | static void printk_deprecated_attribute(const char * const what, |
1096 | const char * const details) | |
1097 | { | |
1098 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
0978e012 | 1099 | pr_warn("WARNING: sysfs attribute %s is deprecated and " |
19d337df JB |
1100 | "will be removed. %s\n", |
1101 | what, details); | |
1102 | } | |
1103 | ||
1104 | /************************************************************************* | |
1105 | * rfkill and radio control support helpers | |
1106 | */ | |
1107 | ||
1108 | /* | |
1109 | * ThinkPad-ACPI firmware handling model: | |
1110 | * | |
1111 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1112 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1113 | * as expected. It overrides all radio state in firmware | |
1114 | * | |
1115 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1116 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1117 | * | |
1118 | * The only time there are shadow radio state changes, is when | |
1119 | * masked-off hotkeys are used. | |
1120 | */ | |
1121 | ||
1122 | /* | |
1123 | * Internal driver API for radio state: | |
1124 | * | |
1125 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1126 | * bool: true means radio blocked (off) | |
1127 | */ | |
1128 | enum tpacpi_rfkill_state { | |
1129 | TPACPI_RFK_RADIO_OFF = 0, | |
1130 | TPACPI_RFK_RADIO_ON | |
1131 | }; | |
1132 | ||
1133 | /* rfkill switches */ | |
1134 | enum tpacpi_rfk_id { | |
1135 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1136 | TPACPI_RFK_WWAN_SW_ID, | |
1137 | TPACPI_RFK_UWB_SW_ID, | |
1138 | TPACPI_RFK_SW_MAX | |
1139 | }; | |
1140 | ||
1141 | static const char *tpacpi_rfkill_names[] = { | |
1142 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1143 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1144 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1145 | [TPACPI_RFK_SW_MAX] = NULL | |
1146 | }; | |
1147 | ||
1148 | /* ThinkPad-ACPI rfkill subdriver */ | |
1149 | struct tpacpi_rfk { | |
1150 | struct rfkill *rfkill; | |
1151 | enum tpacpi_rfk_id id; | |
1152 | const struct tpacpi_rfk_ops *ops; | |
1153 | }; | |
1154 | ||
1155 | struct tpacpi_rfk_ops { | |
1156 | /* firmware interface */ | |
1157 | int (*get_status)(void); | |
1158 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1159 | }; | |
1160 | ||
1161 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1162 | ||
1163 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1164 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1165 | { | |
1166 | int status; | |
1167 | ||
1168 | if (!tp_rfk) | |
1169 | return -ENODEV; | |
1170 | ||
1171 | status = (tp_rfk->ops->get_status)(); | |
1172 | if (status < 0) | |
1173 | return status; | |
1174 | ||
1175 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1176 | (status == TPACPI_RFK_RADIO_OFF)); | |
1177 | ||
1178 | return status; | |
1179 | } | |
1180 | ||
1181 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1182 | static void tpacpi_rfk_update_swstate_all(void) | |
1183 | { | |
1184 | unsigned int i; | |
1185 | ||
1186 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1187 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1188 | } | |
1189 | ||
1190 | /* | |
1191 | * Sync the HW-blocking state of all rfkill switches, | |
1192 | * do notice it causes the rfkill core to schedule uevents | |
1193 | */ | |
1194 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1195 | { | |
1196 | unsigned int i; | |
1197 | struct tpacpi_rfk *tp_rfk; | |
1198 | ||
1199 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1200 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1201 | if (tp_rfk) { | |
1202 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1203 | blocked)) { | |
1204 | /* ignore -- we track sw block */ | |
1205 | } | |
1206 | } | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | /* Call to get the WLSW state from the firmware */ | |
1211 | static int hotkey_get_wlsw(void); | |
1212 | ||
1213 | /* Call to query WLSW state and update all rfkill switches */ | |
1214 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1215 | { | |
1216 | int res = hotkey_get_wlsw(); | |
1217 | int hw_blocked; | |
1218 | ||
1219 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1220 | if (res < 0) | |
1221 | return false; | |
1222 | ||
1223 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1224 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1225 | ||
1226 | return hw_blocked; | |
1227 | } | |
1228 | ||
1229 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1230 | { | |
1231 | struct tpacpi_rfk *tp_rfk = data; | |
1232 | int res; | |
1233 | ||
1234 | dbg_printk(TPACPI_DBG_RFKILL, | |
1235 | "request to change radio state to %s\n", | |
1236 | blocked ? "blocked" : "unblocked"); | |
1237 | ||
1238 | /* try to set radio state */ | |
1239 | res = (tp_rfk->ops->set_status)(blocked ? | |
1240 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1241 | ||
1242 | /* and update the rfkill core with whatever the FW really did */ | |
1243 | tpacpi_rfk_update_swstate(tp_rfk); | |
1244 | ||
1245 | return (res < 0) ? res : 0; | |
1246 | } | |
1247 | ||
1248 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1249 | .set_block = tpacpi_rfk_hook_set_block, | |
1250 | }; | |
1251 | ||
1252 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1253 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1254 | const enum rfkill_type rfktype, |
1255 | const char *name, | |
19d337df | 1256 | const bool set_default) |
0e74dc26 | 1257 | { |
19d337df | 1258 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1259 | int res; |
06d5caf4 | 1260 | bool sw_state = false; |
5451a923 | 1261 | bool hw_state; |
06d5caf4 | 1262 | int sw_status; |
90d9d3c7 | 1263 | |
19d337df JB |
1264 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1265 | ||
19d337df JB |
1266 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1267 | if (atp_rfk) | |
1268 | atp_rfk->rfkill = rfkill_alloc(name, | |
1269 | &tpacpi_pdev->dev, | |
1270 | rfktype, | |
1271 | &tpacpi_rfk_rfkill_ops, | |
1272 | atp_rfk); | |
1273 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1274 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1275 | kfree(atp_rfk); |
0e74dc26 HMH |
1276 | return -ENOMEM; |
1277 | } | |
1278 | ||
19d337df JB |
1279 | atp_rfk->id = id; |
1280 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1281 | |
06d5caf4 AJ |
1282 | sw_status = (tp_rfkops->get_status)(); |
1283 | if (sw_status < 0) { | |
0978e012 JP |
1284 | pr_err("failed to read initial state for %s, error %d\n", |
1285 | name, sw_status); | |
b3fa1329 | 1286 | } else { |
06d5caf4 | 1287 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1288 | if (set_default) { |
1289 | /* try to keep the initial state, since we ask the | |
1290 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1291 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1292 | } |
1293 | } | |
5451a923 HMH |
1294 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1295 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1296 | |
1297 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1298 | if (res < 0) { |
0978e012 | 1299 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1300 | rfkill_destroy(atp_rfk->rfkill); |
1301 | kfree(atp_rfk); | |
0e74dc26 HMH |
1302 | return res; |
1303 | } | |
1304 | ||
19d337df | 1305 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1306 | |
0978e012 | 1307 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1308 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1309 | return 0; |
1310 | } | |
1311 | ||
19d337df | 1312 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1313 | { |
19d337df JB |
1314 | struct tpacpi_rfk *tp_rfk; |
1315 | ||
1316 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1317 | ||
1318 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1319 | if (tp_rfk) { | |
1320 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1321 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1322 | tpacpi_rfkill_switches[id] = NULL; |
1323 | kfree(tp_rfk); | |
1324 | } | |
73a94d86 HMH |
1325 | } |
1326 | ||
1327 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1328 | { | |
1329 | printk_deprecated_attribute(what, | |
1330 | "Please switch to generic rfkill before year 2010"); | |
1331 | } | |
1332 | ||
19d337df JB |
1333 | /* sysfs <radio> enable ------------------------------------------------ */ |
1334 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1335 | struct device_attribute *attr, | |
1336 | char *buf) | |
1337 | { | |
1338 | int status; | |
1339 | ||
1340 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1341 | ||
1342 | /* This is in the ABI... */ | |
1343 | if (tpacpi_rfk_check_hwblock_state()) { | |
1344 | status = TPACPI_RFK_RADIO_OFF; | |
1345 | } else { | |
1346 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1347 | if (status < 0) | |
1348 | return status; | |
1349 | } | |
1350 | ||
1351 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1352 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1353 | } | |
1354 | ||
1355 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1356 | struct device_attribute *attr, | |
1357 | const char *buf, size_t count) | |
1358 | { | |
1359 | unsigned long t; | |
1360 | int res; | |
1361 | ||
1362 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1363 | ||
1364 | if (parse_strtoul(buf, 1, &t)) | |
1365 | return -EINVAL; | |
1366 | ||
1367 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1368 | ||
1369 | /* This is in the ABI... */ | |
1370 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1371 | return -EPERM; | |
1372 | ||
1373 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1374 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1375 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1376 | ||
1377 | return (res < 0) ? res : count; | |
1378 | } | |
1379 | ||
1380 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1381 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1382 | { |
19d337df | 1383 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1384 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1385 | else { |
1386 | int status; | |
1387 | ||
1388 | /* This is in the ABI... */ | |
1389 | if (tpacpi_rfk_check_hwblock_state()) { | |
1390 | status = TPACPI_RFK_RADIO_OFF; | |
1391 | } else { | |
1392 | status = tpacpi_rfk_update_swstate( | |
1393 | tpacpi_rfkill_switches[id]); | |
1394 | if (status < 0) | |
1395 | return status; | |
1396 | } | |
1397 | ||
887965e6 | 1398 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1399 | (status == TPACPI_RFK_RADIO_ON) ? |
1400 | "enabled" : "disabled"); | |
887965e6 | 1401 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1402 | } |
1403 | ||
887965e6 | 1404 | return 0; |
19d337df JB |
1405 | } |
1406 | ||
1407 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1408 | { | |
1409 | char *cmd; | |
1410 | int status = -1; | |
1411 | int res = 0; | |
1412 | ||
1413 | if (id >= TPACPI_RFK_SW_MAX) | |
1414 | return -ENODEV; | |
1415 | ||
1416 | while ((cmd = next_cmd(&buf))) { | |
1417 | if (strlencmp(cmd, "enable") == 0) | |
1418 | status = TPACPI_RFK_RADIO_ON; | |
1419 | else if (strlencmp(cmd, "disable") == 0) | |
1420 | status = TPACPI_RFK_RADIO_OFF; | |
1421 | else | |
1422 | return -EINVAL; | |
1423 | } | |
1424 | ||
1425 | if (status != -1) { | |
1426 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1427 | (status == TPACPI_RFK_RADIO_ON) ? | |
1428 | "enable" : "disable", | |
1429 | tpacpi_rfkill_names[id]); | |
1430 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1431 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1432 | } | |
1433 | ||
1434 | return res; | |
1435 | } | |
1436 | ||
56b6aeb0 | 1437 | /************************************************************************* |
b21a15f6 | 1438 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1439 | */ |
1440 | ||
b21a15f6 HMH |
1441 | /* interface_version --------------------------------------------------- */ |
1442 | static ssize_t tpacpi_driver_interface_version_show( | |
1443 | struct device_driver *drv, | |
1444 | char *buf) | |
1da177e4 | 1445 | { |
b21a15f6 HMH |
1446 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1447 | } | |
1448 | ||
1449 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1450 | tpacpi_driver_interface_version_show, NULL); | |
1451 | ||
1452 | /* debug_level --------------------------------------------------------- */ | |
1453 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1454 | char *buf) | |
1455 | { | |
1456 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1457 | } | |
1458 | ||
1459 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1460 | const char *buf, size_t count) | |
1461 | { | |
1462 | unsigned long t; | |
1463 | ||
1464 | if (parse_strtoul(buf, 0xffff, &t)) | |
1465 | return -EINVAL; | |
1466 | ||
1467 | dbg_level = t; | |
1468 | ||
1469 | return count; | |
1470 | } | |
1471 | ||
1472 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1473 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1474 | ||
1475 | /* version ------------------------------------------------------------- */ | |
1476 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1477 | char *buf) | |
1478 | { | |
35ff8b9f HMH |
1479 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1480 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1481 | } |
1482 | ||
1483 | static DRIVER_ATTR(version, S_IRUGO, | |
1484 | tpacpi_driver_version_show, NULL); | |
1485 | ||
1486 | /* --------------------------------------------------------------------- */ | |
1487 | ||
a73f3091 HMH |
1488 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1489 | ||
a73f3091 HMH |
1490 | /* wlsw_emulstate ------------------------------------------------------ */ |
1491 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1492 | char *buf) | |
1493 | { | |
1494 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1495 | } | |
1496 | ||
1497 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1498 | const char *buf, size_t count) | |
1499 | { | |
1500 | unsigned long t; | |
1501 | ||
1502 | if (parse_strtoul(buf, 1, &t)) | |
1503 | return -EINVAL; | |
1504 | ||
19d337df | 1505 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1506 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1507 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1508 | } | |
a73f3091 HMH |
1509 | |
1510 | return count; | |
1511 | } | |
1512 | ||
1513 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1514 | tpacpi_driver_wlsw_emulstate_show, | |
1515 | tpacpi_driver_wlsw_emulstate_store); | |
1516 | ||
1517 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1518 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1519 | struct device_driver *drv, | |
1520 | char *buf) | |
1521 | { | |
1522 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1523 | } | |
1524 | ||
1525 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1526 | struct device_driver *drv, | |
1527 | const char *buf, size_t count) | |
1528 | { | |
1529 | unsigned long t; | |
1530 | ||
1531 | if (parse_strtoul(buf, 1, &t)) | |
1532 | return -EINVAL; | |
1533 | ||
1534 | tpacpi_bluetooth_emulstate = !!t; | |
1535 | ||
1536 | return count; | |
1537 | } | |
1538 | ||
1539 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1540 | tpacpi_driver_bluetooth_emulstate_show, | |
1541 | tpacpi_driver_bluetooth_emulstate_store); | |
1542 | ||
1543 | /* wwan_emulstate ------------------------------------------------- */ | |
1544 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1545 | struct device_driver *drv, | |
1546 | char *buf) | |
1547 | { | |
1548 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1549 | } | |
1550 | ||
1551 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1552 | struct device_driver *drv, | |
1553 | const char *buf, size_t count) | |
1554 | { | |
1555 | unsigned long t; | |
1556 | ||
1557 | if (parse_strtoul(buf, 1, &t)) | |
1558 | return -EINVAL; | |
1559 | ||
1560 | tpacpi_wwan_emulstate = !!t; | |
1561 | ||
1562 | return count; | |
1563 | } | |
1564 | ||
1565 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1566 | tpacpi_driver_wwan_emulstate_show, | |
1567 | tpacpi_driver_wwan_emulstate_store); | |
1568 | ||
0045c0aa HMH |
1569 | /* uwb_emulstate ------------------------------------------------- */ |
1570 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1571 | struct device_driver *drv, | |
1572 | char *buf) | |
1573 | { | |
1574 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1575 | } | |
1576 | ||
1577 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1578 | struct device_driver *drv, | |
1579 | const char *buf, size_t count) | |
1580 | { | |
1581 | unsigned long t; | |
1582 | ||
1583 | if (parse_strtoul(buf, 1, &t)) | |
1584 | return -EINVAL; | |
1585 | ||
1586 | tpacpi_uwb_emulstate = !!t; | |
1587 | ||
1588 | return count; | |
1589 | } | |
1590 | ||
1591 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1592 | tpacpi_driver_uwb_emulstate_show, | |
1593 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1594 | #endif |
1595 | ||
1596 | /* --------------------------------------------------------------------- */ | |
1597 | ||
35ff8b9f | 1598 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1599 | &driver_attr_debug_level, &driver_attr_version, |
1600 | &driver_attr_interface_version, | |
1601 | }; | |
1602 | ||
1603 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1604 | { | |
1605 | int i, res; | |
1606 | ||
1607 | i = 0; | |
1608 | res = 0; | |
1609 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1610 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1611 | i++; | |
1612 | } | |
1613 | ||
a73f3091 HMH |
1614 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1615 | if (!res && dbg_wlswemul) | |
1616 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1617 | if (!res && dbg_bluetoothemul) | |
1618 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1619 | if (!res && dbg_wwanemul) | |
1620 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1621 | if (!res && dbg_uwbemul) |
1622 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1623 | #endif |
1624 | ||
b21a15f6 HMH |
1625 | return res; |
1626 | } | |
1627 | ||
1628 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1629 | { | |
1630 | int i; | |
1631 | ||
35ff8b9f | 1632 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1633 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1634 | |
1635 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1636 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1637 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1638 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1639 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1640 | #endif |
b21a15f6 HMH |
1641 | } |
1642 | ||
600a99fa HMH |
1643 | /************************************************************************* |
1644 | * Firmware Data | |
1645 | */ | |
1646 | ||
1647 | /* | |
1648 | * Table of recommended minimum BIOS versions | |
1649 | * | |
1650 | * Reasons for listing: | |
9ddc5b6f | 1651 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1652 | * bugs and bad ACPI behaviour on older versions |
1653 | * | |
1654 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1655 | * | |
1656 | * 3. BIOS with known reduced functionality in older versions | |
1657 | * | |
1658 | * We recommend the latest BIOS and EC version. | |
1659 | * We only support the latest BIOS and EC fw version as a rule. | |
1660 | * | |
1661 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1662 | * Information from users in ThinkWiki | |
e675abaf HMH |
1663 | * |
1664 | * WARNING: we use this table also to detect that the machine is | |
1665 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1666 | */ |
1667 | ||
1668 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1669 | { .vendor = (__v), \ | |
1670 | .bios = TPID(__id1, __id2), \ | |
1671 | .ec = TPACPI_MATCH_ANY, \ | |
1672 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1673 | | (__bv1) << 8 | (__bv2) } | |
1674 | ||
1675 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1676 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1677 | { .vendor = (__v), \ |
1678 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1679 | .ec = __eid, \ |
600a99fa HMH |
1680 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1681 | | (__bv1) << 8 | (__bv2) } | |
1682 | ||
1683 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1684 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1685 | ||
275014ae | 1686 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1687 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1688 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1689 | __bv1, __bv2, TPID(__id1, __id2), \ |
1690 | __ev1, __ev2), \ | |
1691 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1692 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1693 | __ev1, __ev2) | |
600a99fa | 1694 | |
275014ae | 1695 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1696 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1697 | __eid1, __eid2, __ev1, __ev2) \ | |
1698 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1699 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1700 | __ev1, __ev2), \ | |
1701 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1702 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1703 | __ev1, __ev2) | |
600a99fa HMH |
1704 | |
1705 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1706 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1707 | ||
1708 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1709 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1710 | __bv1, __bv2, TPID(__id1, __id2), \ |
1711 | __ev1, __ev2) | |
600a99fa HMH |
1712 | |
1713 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1714 | __eid1, __eid2, __ev1, __ev2) \ | |
1715 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1716 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1717 | __ev1, __ev2) | |
600a99fa HMH |
1718 | |
1719 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1720 | /* Numeric models ------------------ */ | |
1721 | /* FW MODEL BIOS VERS */ | |
1722 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1723 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1724 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1725 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1726 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1727 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1728 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1729 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1730 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1731 | ||
1732 | /* A-series ------------------------- */ | |
1733 | /* FW MODEL BIOS VERS EC VERS */ | |
1734 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1735 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1736 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1737 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1738 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1739 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1740 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1741 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1742 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1743 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1744 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1745 | ||
1746 | /* G-series ------------------------- */ | |
1747 | /* FW MODEL BIOS VERS */ | |
1748 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1749 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1750 | ||
1751 | /* R-series, T-series --------------- */ | |
1752 | /* FW MODEL BIOS VERS EC VERS */ | |
1753 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1754 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1755 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1756 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1757 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1758 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1759 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1760 | T40/p, T41/p, T42/p (1) */ | |
1761 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1762 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1763 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1764 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1765 | ||
1766 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1767 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1768 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1769 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1770 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1771 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1772 | ||
1773 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1774 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1775 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1776 | |
1777 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1778 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1779 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1780 | ||
1781 | /* X-series ------------------------- */ | |
1782 | /* FW MODEL BIOS VERS EC VERS */ | |
1783 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1784 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1785 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1786 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1787 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1788 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1789 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1790 | ||
90765c6a HMH |
1791 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1792 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1793 | |
1794 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1795 | /* (1) - older versions known to lack functionality */ | |
1796 | }; | |
1797 | ||
1798 | #undef TPV_QL1 | |
1799 | #undef TPV_QL0 | |
1800 | #undef TPV_QI2 | |
1801 | #undef TPV_QI1 | |
1802 | #undef TPV_QI0 | |
1803 | #undef TPV_Q_X | |
1804 | #undef TPV_Q | |
1805 | ||
1806 | static void __init tpacpi_check_outdated_fw(void) | |
1807 | { | |
1808 | unsigned long fwvers; | |
1809 | u16 ec_version, bios_version; | |
1810 | ||
1811 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1812 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1813 | ||
1814 | if (!fwvers) | |
1815 | return; | |
1816 | ||
1817 | bios_version = fwvers & 0xffffU; | |
1818 | ec_version = (fwvers >> 16) & 0xffffU; | |
1819 | ||
1820 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1821 | if ((bios_version > thinkpad_id.bios_release) || | |
1822 | (ec_version > thinkpad_id.ec_release && | |
1823 | ec_version != TPACPI_MATCH_ANY)) { | |
1824 | /* | |
1825 | * The changelogs would let us track down the exact | |
1826 | * reason, but it is just too much of a pain to track | |
1827 | * it. We only list BIOSes that are either really | |
1828 | * broken, or really stable to begin with, so it is | |
1829 | * best if the user upgrades the firmware anyway. | |
1830 | */ | |
0978e012 JP |
1831 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
1832 | pr_warn("WARNING: This firmware may be missing critical bug " | |
600a99fa HMH |
1833 | "fixes and/or important features\n"); |
1834 | } | |
1835 | } | |
1836 | ||
e675abaf HMH |
1837 | static bool __init tpacpi_is_fw_known(void) |
1838 | { | |
1839 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1840 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1841 | } | |
1842 | ||
b21a15f6 HMH |
1843 | /**************************************************************************** |
1844 | **************************************************************************** | |
1845 | * | |
1846 | * Subdrivers | |
1847 | * | |
1848 | **************************************************************************** | |
1849 | ****************************************************************************/ | |
1850 | ||
1851 | /************************************************************************* | |
7a43f788 | 1852 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1853 | */ |
1854 | ||
887965e6 | 1855 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1856 | { |
887965e6 AD |
1857 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1858 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1859 | return 0; | |
1da177e4 LT |
1860 | } |
1861 | ||
a5763f22 HMH |
1862 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1863 | .name = "driver", | |
1864 | .read = thinkpad_acpi_driver_read, | |
1865 | }; | |
1866 | ||
56b6aeb0 HMH |
1867 | /************************************************************************* |
1868 | * Hotkey subdriver | |
1869 | */ | |
1870 | ||
0d922e3b HMH |
1871 | /* |
1872 | * ThinkPad firmware event model | |
1873 | * | |
1874 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1875 | * notifications (which follow the ACPI standard), and a private event | |
1876 | * interface. | |
1877 | * | |
1878 | * The private event interface also issues events for the hotkeys. As | |
1879 | * the driver gained features, the event handling code ended up being | |
1880 | * built around the hotkey subdriver. This will need to be refactored | |
1881 | * to a more formal event API eventually. | |
1882 | * | |
1883 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1884 | * such as "brightness has changed", "volume has changed", depending on | |
1885 | * the ThinkPad model and how the firmware is operating. | |
1886 | * | |
1887 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1888 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1889 | * firmware model and version. | |
1890 | */ | |
1891 | ||
f74a27d4 HMH |
1892 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1893 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1894 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1895 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1896 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1897 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1898 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1899 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1900 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1901 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1902 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1903 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1904 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1905 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1906 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1907 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1908 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1909 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1910 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1911 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1912 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1913 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1914 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1915 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1916 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1917 | TP_ACPI_HOTKEYSCAN_UNK1, |
1918 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1919 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1920 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1921 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1922 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1923 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1924 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1925 | ||
6a68d855 BN |
1926 | TP_ACPI_HOTKEYSCAN_MUTE2, |
1927 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, | |
1928 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1929 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1930 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1931 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1932 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1933 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1934 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1935 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1936 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1937 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1938 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1939 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1940 | TP_ACPI_HOTKEYSCAN_BACK, | |
1941 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1942 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1943 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1944 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1945 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1946 | ||
34a656d2 HMH |
1947 | /* Hotkey keymap size */ |
1948 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1949 | }; |
1950 | ||
0d922e3b | 1951 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1952 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1953 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1954 | }; | |
1955 | ||
1956 | enum { /* Positions of some of the keys in hotkey masks */ | |
1957 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1958 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1959 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1960 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1961 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1962 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1963 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1964 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1965 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1966 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1967 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1968 | }; | |
1969 | ||
1970 | enum { /* NVRAM to ACPI HKEY group map */ | |
1971 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1972 | TP_ACPI_HKEY_ZOOM_MASK | | |
1973 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1974 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1975 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1976 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1977 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1978 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1979 | TP_ACPI_HKEY_MUTE_MASK, | |
1980 | }; | |
1981 | ||
1982 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1983 | struct tp_nvram_state { | |
1984 | u16 thinkpad_toggle:1; | |
1985 | u16 zoom_toggle:1; | |
1986 | u16 display_toggle:1; | |
1987 | u16 thinklight_toggle:1; | |
1988 | u16 hibernate_toggle:1; | |
1989 | u16 displayexp_toggle:1; | |
1990 | u16 display_state:1; | |
1991 | u16 brightness_toggle:1; | |
1992 | u16 volume_toggle:1; | |
1993 | u16 mute:1; | |
1994 | ||
1995 | u8 brightness_level; | |
1996 | u8 volume_level; | |
1997 | }; | |
1998 | ||
db25f16d | 1999 | /* kthread for the hotkey poller */ |
01e88f25 | 2000 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 2001 | |
db25f16d | 2002 | /* |
0d922e3b HMH |
2003 | * Acquire mutex to write poller control variables as an |
2004 | * atomic block. | |
2005 | * | |
2006 | * Increment hotkey_config_change when changing them if you | |
2007 | * want the kthread to forget old state. | |
db25f16d HMH |
2008 | * |
2009 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2010 | */ | |
01e88f25 HMH |
2011 | static struct mutex hotkey_thread_data_mutex; |
2012 | static unsigned int hotkey_config_change; | |
2013 | ||
db25f16d HMH |
2014 | /* |
2015 | * hotkey poller control variables | |
2016 | * | |
2017 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2018 | * |
2019 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2020 | * should be used only when the changes need to be taken as | |
2021 | * a block, OR when one needs to force the kthread to forget | |
2022 | * old state. | |
db25f16d HMH |
2023 | */ |
2024 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2025 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2026 | ||
2027 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2028 | do { \ | |
2029 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2030 | hotkey_config_change++; \ | |
2031 | } while (0); | |
2032 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2033 | mutex_unlock(&hotkey_thread_data_mutex); | |
2034 | ||
01e88f25 HMH |
2035 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2036 | ||
2037 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2038 | #define HOTKEY_CONFIG_CRITICAL_START |
2039 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2040 | |
2041 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2042 | ||
f74a27d4 HMH |
2043 | static struct mutex hotkey_mutex; |
2044 | ||
a713b4d7 HMH |
2045 | static enum { /* Reasons for waking up */ |
2046 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2047 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2048 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2049 | } hotkey_wakeup_reason; | |
2050 | ||
2051 | static int hotkey_autosleep_ack; | |
2052 | ||
0d922e3b HMH |
2053 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2054 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
0118c2d3 | 2055 | static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ |
0d922e3b HMH |
2056 | static u32 hotkey_reserved_mask; /* events better left disabled */ |
2057 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2058 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2059 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2060 | |
edf0e0e5 | 2061 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2062 | |
94954cc6 | 2063 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2064 | |
8b468c0c HMH |
2065 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2066 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2067 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2068 | |
6c231bd5 HMH |
2069 | /* HKEY.MHKG() return bits */ |
2070 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
b03f4d49 L |
2071 | /* ThinkPad X1 Yoga (2016) */ |
2072 | #define TP_EC_CMMD_TABLET_MODE 0x6 | |
6c231bd5 | 2073 | |
19d337df | 2074 | static int hotkey_get_wlsw(void) |
74941a69 | 2075 | { |
19d337df JB |
2076 | int status; |
2077 | ||
2078 | if (!tp_features.hotkey_wlsw) | |
2079 | return -ENODEV; | |
2080 | ||
a73f3091 | 2081 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2082 | if (dbg_wlswemul) |
2083 | return (tpacpi_wlsw_emulstate) ? | |
2084 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2085 | #endif |
19d337df JB |
2086 | |
2087 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2088 | return -EIO; |
19d337df JB |
2089 | |
2090 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2091 | } |
2092 | ||
6c231bd5 HMH |
2093 | static int hotkey_get_tablet_mode(int *status) |
2094 | { | |
2095 | int s; | |
2096 | ||
b03f4d49 L |
2097 | switch (tp_features.hotkey_tablet) { |
2098 | case TP_HOTKEY_TABLET_USES_MHKG: | |
2099 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2100 | return -EIO; | |
2101 | ||
2102 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); | |
2103 | break; | |
2104 | case TP_HOTKEY_TABLET_USES_CMMD: | |
2105 | if (!acpi_evalf(ec_handle, &s, "CMMD", "d")) | |
2106 | return -EIO; | |
2107 | ||
2108 | *status = (s == TP_EC_CMMD_TABLET_MODE); | |
2109 | break; | |
2110 | default: | |
2111 | break; | |
2112 | } | |
6c231bd5 | 2113 | |
cee47f5a | 2114 | return 0; |
6c231bd5 HMH |
2115 | } |
2116 | ||
b2c985e7 | 2117 | /* |
0d922e3b HMH |
2118 | * Reads current event mask from firmware, and updates |
2119 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2120 | * from hotkey_user_mask that are unavailable to be | |
2121 | * delivered (shadow requirement of the userspace ABI). | |
2122 | * | |
b2c985e7 HMH |
2123 | * Call with hotkey_mutex held |
2124 | */ | |
2125 | static int hotkey_mask_get(void) | |
2126 | { | |
2127 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2128 | u32 m = 0; |
2129 | ||
01e88f25 | 2130 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2131 | return -EIO; |
0d922e3b HMH |
2132 | |
2133 | hotkey_acpi_mask = m; | |
2134 | } else { | |
2135 | /* no mask support doesn't mean no event support... */ | |
2136 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2137 | } |
0d922e3b HMH |
2138 | |
2139 | /* sync userspace-visible mask */ | |
2140 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2141 | |
2142 | return 0; | |
2143 | } | |
2144 | ||
df6dd1b3 | 2145 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2146 | { |
2147 | /* log only what the user can fix... */ | |
2148 | const u32 wantedmask = hotkey_driver_mask & | |
2149 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2150 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2151 | ||
2152 | if (wantedmask) | |
0978e012 | 2153 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2154 | } |
2155 | ||
b2c985e7 | 2156 | /* |
0d922e3b HMH |
2157 | * Set the firmware mask when supported |
2158 | * | |
2159 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2160 | * | |
2161 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2162 | * | |
b2c985e7 HMH |
2163 | * Call with hotkey_mutex held |
2164 | */ | |
2165 | static int hotkey_mask_set(u32 mask) | |
2166 | { | |
2167 | int i; | |
2168 | int rc = 0; | |
2169 | ||
0d922e3b | 2170 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2171 | |
0d922e3b | 2172 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2173 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2174 | if (!acpi_evalf(hkey_handle, |
2175 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2176 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2177 | rc = -EIO; |
2178 | break; | |
b2c985e7 HMH |
2179 | } |
2180 | } | |
0d922e3b | 2181 | } |
b2c985e7 | 2182 | |
0d922e3b HMH |
2183 | /* |
2184 | * We *must* make an inconditional call to hotkey_mask_get to | |
2185 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2186 | * | |
2187 | * Take the opportunity to also log when we cannot _enable_ | |
2188 | * a given event. | |
2189 | */ | |
2190 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
0978e012 JP |
2191 | pr_notice("asked for hotkey mask 0x%08x, but " |
2192 | "firmware forced it to 0x%08x\n", | |
2193 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2194 | } |
2195 | ||
6b30eb7d HMH |
2196 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2197 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2198 | |
2199 | return rc; | |
2200 | } | |
2201 | ||
2202 | /* | |
2203 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2204 | * | |
2205 | * Call with hotkey_mutex held | |
2206 | */ | |
2207 | static int hotkey_user_mask_set(const u32 mask) | |
2208 | { | |
2209 | int rc; | |
2210 | ||
2211 | /* Give people a chance to notice they are doing something that | |
2212 | * is bound to go boom on their users sooner or later */ | |
2213 | if (!tp_warned.hotkey_mask_ff && | |
2214 | (mask == 0xffff || mask == 0xffffff || | |
2215 | mask == 0xffffffff)) { | |
2216 | tp_warned.hotkey_mask_ff = 1; | |
0978e012 JP |
2217 | pr_notice("setting the hotkey mask to 0x%08x is likely " |
2218 | "not the best way to go about it\n", mask); | |
2219 | pr_notice("please consider using the driver defaults, " | |
2220 | "and refer to up-to-date thinkpad-acpi " | |
2221 | "documentation\n"); | |
0d922e3b HMH |
2222 | } |
2223 | ||
2224 | /* Try to enable what the user asked for, plus whatever we need. | |
2225 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2226 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2227 | ||
2228 | /* Enable the available bits in hotkey_user_mask */ | |
2229 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2230 | ||
b2c985e7 HMH |
2231 | return rc; |
2232 | } | |
2233 | ||
8b468c0c HMH |
2234 | /* |
2235 | * Sets the driver hotkey mask. | |
2236 | * | |
2237 | * Can be called even if the hotkey subdriver is inactive | |
2238 | */ | |
2239 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2240 | { | |
2241 | int rc; | |
2242 | ||
2243 | /* Do the right thing if hotkey_init has not been called yet */ | |
2244 | if (!tp_features.hotkey) { | |
2245 | hotkey_driver_mask = mask; | |
2246 | return 0; | |
2247 | } | |
2248 | ||
2249 | mutex_lock(&hotkey_mutex); | |
2250 | ||
2251 | HOTKEY_CONFIG_CRITICAL_START | |
2252 | hotkey_driver_mask = mask; | |
b684a363 | 2253 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2254 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2255 | #endif |
8b468c0c HMH |
2256 | HOTKEY_CONFIG_CRITICAL_END |
2257 | ||
2258 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2259 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2260 | hotkey_poll_setup(true); |
2261 | ||
8b468c0c HMH |
2262 | mutex_unlock(&hotkey_mutex); |
2263 | ||
2264 | return rc; | |
2265 | } | |
2266 | ||
b2c985e7 HMH |
2267 | static int hotkey_status_get(int *status) |
2268 | { | |
2269 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2270 | return -EIO; | |
2271 | ||
2272 | return 0; | |
2273 | } | |
2274 | ||
2586d566 | 2275 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2276 | { |
2586d566 | 2277 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2278 | return -EIO; |
2279 | ||
2280 | return 0; | |
2281 | } | |
2282 | ||
6c231bd5 | 2283 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2284 | { |
6c231bd5 | 2285 | int state; |
b3ec6f91 | 2286 | |
6c231bd5 HMH |
2287 | if (tp_features.hotkey_tablet && |
2288 | !hotkey_get_tablet_mode(&state)) { | |
2289 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2290 | |
6c231bd5 HMH |
2291 | input_report_switch(tpacpi_inputdev, |
2292 | SW_TABLET_MODE, !!state); | |
2293 | input_sync(tpacpi_inputdev); | |
2294 | ||
2295 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2296 | } | |
b3ec6f91 HMH |
2297 | } |
2298 | ||
0d922e3b HMH |
2299 | /* Do NOT call without validating scancode first */ |
2300 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2301 | { |
0d922e3b | 2302 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2303 | |
2304 | if (keycode != KEY_RESERVED) { | |
2305 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2306 | ||
5ffba7e6 | 2307 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2308 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2309 | input_sync(tpacpi_inputdev); |
2310 | ||
5ffba7e6 | 2311 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2312 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2313 | input_sync(tpacpi_inputdev); |
2314 | ||
2315 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2316 | } | |
2317 | } | |
2318 | ||
0d922e3b HMH |
2319 | /* Do NOT call without validating scancode first */ |
2320 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2321 | { | |
8b468c0c | 2322 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2323 | if (hotkey_user_mask & (1 << scancode)) |
2324 | tpacpi_input_send_key(scancode); | |
2325 | } | |
2326 | ||
01e88f25 HMH |
2327 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2328 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2329 | ||
0d922e3b | 2330 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2331 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2332 | { | |
0d922e3b | 2333 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2334 | } |
2335 | ||
0d922e3b | 2336 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2337 | { |
2338 | u8 d; | |
2339 | ||
2340 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2341 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2342 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2343 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2344 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2345 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2346 | } | |
2347 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2348 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2349 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2350 | } | |
2351 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2352 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2353 | n->displayexp_toggle = | |
2354 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2355 | } | |
2356 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2357 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2358 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2359 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2360 | n->brightness_toggle = | |
2361 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2362 | } | |
2363 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2364 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2365 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2366 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2367 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2368 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2369 | } | |
2370 | } | |
2371 | ||
2372 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2373 | do { \ |
2374 | if ((event_mask & (1 << __scancode)) && \ | |
2375 | oldn->__member != newn->__member) \ | |
2376 | tpacpi_hotkey_send_key(__scancode); \ | |
2377 | } while (0) | |
01e88f25 HMH |
2378 | |
2379 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2380 | do { \ |
2381 | if (event_mask & (1 << __scancode)) \ | |
2382 | tpacpi_hotkey_send_key(__scancode); \ | |
2383 | } while (0) | |
2384 | ||
2385 | static void issue_volchange(const unsigned int oldvol, | |
2386 | const unsigned int newvol, | |
2387 | const u32 event_mask) | |
2388 | { | |
2389 | unsigned int i = oldvol; | |
2390 | ||
2391 | while (i > newvol) { | |
2392 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2393 | i--; | |
5d756db9 | 2394 | } |
a4d44ba1 BW |
2395 | while (i < newvol) { |
2396 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2397 | i++; | |
2398 | } | |
2399 | } | |
5d756db9 | 2400 | |
a4d44ba1 BW |
2401 | static void issue_brightnesschange(const unsigned int oldbrt, |
2402 | const unsigned int newbrt, | |
2403 | const u32 event_mask) | |
2404 | { | |
2405 | unsigned int i = oldbrt; | |
28999022 | 2406 | |
a4d44ba1 BW |
2407 | while (i > newbrt) { |
2408 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2409 | i--; | |
28999022 | 2410 | } |
a4d44ba1 BW |
2411 | while (i < newbrt) { |
2412 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2413 | i++; | |
2414 | } | |
2415 | } | |
2416 | ||
2417 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2418 | struct tp_nvram_state *newn, | |
2419 | const u32 event_mask) | |
2420 | { | |
28999022 | 2421 | |
01e88f25 HMH |
2422 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2423 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2424 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2425 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2426 | ||
2427 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2428 | ||
2429 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2430 | ||
5d756db9 HMH |
2431 | /* |
2432 | * Handle volume | |
2433 | * | |
2434 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2435 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2436 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2437 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2438 | * - The act of unmuting issues volume up/down notification, |
2439 | * depending which key was used to unmute | |
2440 | * | |
2441 | * We are constrained to what the NVRAM can tell us, which is not much | |
2442 | * and certainly not enough if more than one volume hotkey was pressed | |
2443 | * since the last poll cycle. | |
2444 | * | |
2445 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2446 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2447 | */ | |
2448 | if (newn->mute) { | |
2449 | /* muted */ | |
2450 | if (!oldn->mute || | |
2451 | oldn->volume_toggle != newn->volume_toggle || | |
2452 | oldn->volume_level != newn->volume_level) { | |
2453 | /* recently muted, or repeated mute keypress, or | |
2454 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2455 | issue_volchange(oldn->volume_level, newn->volume_level, |
2456 | event_mask); | |
01e88f25 HMH |
2457 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2458 | } | |
5d756db9 HMH |
2459 | } else { |
2460 | /* unmute */ | |
2461 | if (oldn->mute) { | |
2462 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2463 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2464 | } |
2465 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2466 | issue_volchange(oldn->volume_level, newn->volume_level, |
2467 | event_mask); | |
5d756db9 HMH |
2468 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2469 | /* repeated vol up/down keypress at end of scale ? */ | |
2470 | if (newn->volume_level == 0) | |
01e88f25 | 2471 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2472 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2473 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2474 | } |
2475 | } | |
2476 | ||
2477 | /* handle brightness */ | |
28999022 HMH |
2478 | if (oldn->brightness_level != newn->brightness_level) { |
2479 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2480 | newn->brightness_level, event_mask); |
28999022 HMH |
2481 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2482 | /* repeated key presses that didn't change state */ | |
2483 | if (newn->brightness_level == 0) | |
01e88f25 | 2484 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2485 | else if (newn->brightness_level >= bright_maxlvl |
2486 | && !tp_features.bright_unkfw) | |
2487 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2488 | } |
01e88f25 HMH |
2489 | |
2490 | #undef TPACPI_COMPARE_KEY | |
2491 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2492 | } |
01e88f25 | 2493 | |
0d922e3b HMH |
2494 | /* |
2495 | * Polling driver | |
2496 | * | |
2497 | * We track all events in hotkey_source_mask all the time, since | |
2498 | * most of them are edge-based. We only issue those requested by | |
2499 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2500 | */ | |
01e88f25 HMH |
2501 | static int hotkey_kthread(void *data) |
2502 | { | |
2503 | struct tp_nvram_state s[2]; | |
0d922e3b | 2504 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2505 | unsigned int si, so; |
2506 | unsigned long t; | |
8a32c441 | 2507 | unsigned int change_detector; |
db25f16d | 2508 | unsigned int poll_freq; |
8a32c441 | 2509 | bool was_frozen; |
01e88f25 | 2510 | |
01e88f25 HMH |
2511 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2512 | goto exit; | |
2513 | ||
2514 | set_freezable(); | |
2515 | ||
2516 | so = 0; | |
2517 | si = 1; | |
2518 | t = 0; | |
2519 | ||
2520 | /* Initial state for compares */ | |
2521 | mutex_lock(&hotkey_thread_data_mutex); | |
2522 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2523 | poll_mask = hotkey_source_mask; |
2524 | event_mask = hotkey_source_mask & | |
2525 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2526 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2527 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2528 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2529 | |
db25f16d HMH |
2530 | while (!kthread_should_stop()) { |
2531 | if (t == 0) { | |
2532 | if (likely(poll_freq)) | |
2533 | t = 1000/poll_freq; | |
2534 | else | |
2535 | t = 100; /* should never happen... */ | |
2536 | } | |
01e88f25 | 2537 | t = msleep_interruptible(t); |
8a32c441 | 2538 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2539 | break; |
8a32c441 TH |
2540 | |
2541 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2542 | continue; |
2543 | ||
2544 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2545 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2546 | /* forget old state on thaw or config change */ |
2547 | si = so; | |
2548 | t = 0; | |
2549 | change_detector = hotkey_config_change; | |
2550 | } | |
0d922e3b HMH |
2551 | poll_mask = hotkey_source_mask; |
2552 | event_mask = hotkey_source_mask & | |
2553 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2554 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2555 | mutex_unlock(&hotkey_thread_data_mutex); |
2556 | ||
0d922e3b HMH |
2557 | if (likely(poll_mask)) { |
2558 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2559 | if (likely(si != so)) { |
2560 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2561 | event_mask); |
01e88f25 HMH |
2562 | } |
2563 | } | |
2564 | ||
2565 | so = si; | |
2566 | si ^= 1; | |
2567 | } | |
2568 | ||
2569 | exit: | |
01e88f25 HMH |
2570 | return 0; |
2571 | } | |
2572 | ||
db25f16d | 2573 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2574 | static void hotkey_poll_stop_sync(void) |
2575 | { | |
2576 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2577 | kthread_stop(tpacpi_hotkey_task); |
2578 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2579 | } |
2580 | } | |
2581 | ||
2582 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2583 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2584 | { |
0d922e3b HMH |
2585 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2586 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2587 | |
0d922e3b HMH |
2588 | if (hotkey_poll_freq > 0 && |
2589 | (poll_driver_mask || | |
2590 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2591 | if (!tpacpi_hotkey_task) { |
2592 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2593 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2594 | if (IS_ERR(tpacpi_hotkey_task)) { |
2595 | tpacpi_hotkey_task = NULL; | |
0978e012 | 2596 | pr_err("could not create kernel thread " |
01e88f25 HMH |
2597 | "for hotkey polling\n"); |
2598 | } | |
2599 | } | |
2600 | } else { | |
2601 | hotkey_poll_stop_sync(); | |
0d922e3b | 2602 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2603 | hotkey_poll_freq == 0) { |
0978e012 JP |
2604 | pr_notice("hot keys 0x%08x and/or events 0x%08x " |
2605 | "require polling, which is currently " | |
2606 | "disabled\n", | |
2607 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2608 | } |
2609 | } | |
2610 | } | |
2611 | ||
7f0cf712 | 2612 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2613 | { |
2614 | mutex_lock(&hotkey_mutex); | |
2615 | hotkey_poll_setup(may_warn); | |
2616 | mutex_unlock(&hotkey_mutex); | |
2617 | } | |
2618 | ||
db25f16d HMH |
2619 | /* call with hotkey_mutex held */ |
2620 | static void hotkey_poll_set_freq(unsigned int freq) | |
2621 | { | |
2622 | if (!freq) | |
2623 | hotkey_poll_stop_sync(); | |
2624 | ||
db25f16d | 2625 | hotkey_poll_freq = freq; |
db25f16d HMH |
2626 | } |
2627 | ||
1bc6b9cd HMH |
2628 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2629 | ||
7f0cf712 HMH |
2630 | static void hotkey_poll_setup(const bool __unused) |
2631 | { | |
2632 | } | |
2633 | ||
2634 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2635 | { |
2636 | } | |
2637 | ||
2638 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2639 | ||
01e88f25 HMH |
2640 | static int hotkey_inputdev_open(struct input_dev *dev) |
2641 | { | |
2642 | switch (tpacpi_lifecycle) { | |
2643 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2644 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2645 | hotkey_poll_setup_safe(false); |
01e88f25 | 2646 | return 0; |
b589ea4c HMH |
2647 | case TPACPI_LIFE_EXITING: |
2648 | return -EBUSY; | |
01e88f25 HMH |
2649 | } |
2650 | ||
2651 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2652 | BUG(); | |
2653 | return -EBUSY; | |
2654 | } | |
2655 | ||
2656 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2657 | { | |
2658 | /* disable hotkey polling when possible */ | |
b589ea4c | 2659 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2660 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2661 | hotkey_poll_setup_safe(false); |
01e88f25 | 2662 | } |
01e88f25 | 2663 | |
a0416420 HMH |
2664 | /* sysfs hotkey enable ------------------------------------------------- */ |
2665 | static ssize_t hotkey_enable_show(struct device *dev, | |
2666 | struct device_attribute *attr, | |
2667 | char *buf) | |
2668 | { | |
ae92bd17 | 2669 | int res, status; |
a0416420 | 2670 | |
2586d566 HMH |
2671 | printk_deprecated_attribute("hotkey_enable", |
2672 | "Hotkey reporting is always enabled"); | |
2673 | ||
b2c985e7 | 2674 | res = hotkey_status_get(&status); |
a0416420 HMH |
2675 | if (res) |
2676 | return res; | |
2677 | ||
2678 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2679 | } | |
2680 | ||
2681 | static ssize_t hotkey_enable_store(struct device *dev, | |
2682 | struct device_attribute *attr, | |
2683 | const char *buf, size_t count) | |
2684 | { | |
2685 | unsigned long t; | |
2586d566 HMH |
2686 | |
2687 | printk_deprecated_attribute("hotkey_enable", | |
2688 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2689 | |
2690 | if (parse_strtoul(buf, 1, &t)) | |
2691 | return -EINVAL; | |
2692 | ||
2586d566 HMH |
2693 | if (t == 0) |
2694 | return -EPERM; | |
a0416420 | 2695 | |
2586d566 | 2696 | return count; |
a0416420 HMH |
2697 | } |
2698 | ||
b4dd04ac | 2699 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2700 | |
2701 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2702 | static ssize_t hotkey_mask_show(struct device *dev, | |
2703 | struct device_attribute *attr, | |
2704 | char *buf) | |
2705 | { | |
0d922e3b | 2706 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2707 | } |
2708 | ||
2709 | static ssize_t hotkey_mask_store(struct device *dev, | |
2710 | struct device_attribute *attr, | |
2711 | const char *buf, size_t count) | |
2712 | { | |
2713 | unsigned long t; | |
b2c985e7 | 2714 | int res; |
a0416420 | 2715 | |
ae92bd17 | 2716 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2717 | return -EINVAL; |
2718 | ||
7646ea88 | 2719 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2720 | return -ERESTARTSYS; |
2721 | ||
0d922e3b | 2722 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2723 | |
2724 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2725 | hotkey_poll_setup(true); |
01e88f25 HMH |
2726 | #endif |
2727 | ||
b2c985e7 | 2728 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2729 | |
56e2c200 HMH |
2730 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2731 | ||
a0416420 HMH |
2732 | return (res) ? res : count; |
2733 | } | |
2734 | ||
b4dd04ac | 2735 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2736 | |
2737 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2738 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2739 | struct device_attribute *attr, | |
2740 | char *buf) | |
2741 | { | |
2586d566 | 2742 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2743 | } |
2744 | ||
b4dd04ac | 2745 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2746 | |
2747 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2748 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2749 | struct device_attribute *attr, | |
2750 | char *buf) | |
2751 | { | |
06777be6 HMH |
2752 | printk_deprecated_attribute("hotkey_bios_mask", |
2753 | "This attribute is useless."); | |
ae92bd17 | 2754 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2755 | } |
2756 | ||
b4dd04ac | 2757 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2758 | |
9b010de5 HMH |
2759 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2760 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2761 | struct device_attribute *attr, | |
2762 | char *buf) | |
2763 | { | |
01e88f25 HMH |
2764 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2765 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2766 | } |
2767 | ||
b4dd04ac | 2768 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 | 2769 | |
0118c2d3 DW |
2770 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2771 | static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, | |
2772 | struct device_attribute *attr, | |
2773 | char *buf) | |
2774 | { | |
2775 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
2776 | hotkey_adaptive_all_mask | hotkey_source_mask); | |
2777 | } | |
2778 | ||
2779 | static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); | |
2780 | ||
9b010de5 HMH |
2781 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
2782 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2783 | struct device_attribute *attr, | |
2784 | char *buf) | |
2785 | { | |
2786 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2787 | (hotkey_all_mask | hotkey_source_mask) |
2788 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2789 | } |
2790 | ||
b4dd04ac | 2791 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2792 | |
01e88f25 HMH |
2793 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2794 | ||
2795 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2796 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2797 | struct device_attribute *attr, | |
2798 | char *buf) | |
2799 | { | |
2800 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2801 | } | |
2802 | ||
2803 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2804 | struct device_attribute *attr, | |
2805 | const char *buf, size_t count) | |
2806 | { | |
2807 | unsigned long t; | |
0d922e3b HMH |
2808 | u32 r_ev; |
2809 | int rc; | |
01e88f25 HMH |
2810 | |
2811 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2812 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2813 | return -EINVAL; | |
2814 | ||
7646ea88 | 2815 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2816 | return -ERESTARTSYS; |
2817 | ||
2818 | HOTKEY_CONFIG_CRITICAL_START | |
2819 | hotkey_source_mask = t; | |
2820 | HOTKEY_CONFIG_CRITICAL_END | |
2821 | ||
0d922e3b HMH |
2822 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2823 | ~hotkey_source_mask); | |
db25f16d | 2824 | hotkey_poll_setup(true); |
0d922e3b HMH |
2825 | |
2826 | /* check if events needed by the driver got disabled */ | |
2827 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2828 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2829 | |
2830 | mutex_unlock(&hotkey_mutex); | |
2831 | ||
0d922e3b | 2832 | if (rc < 0) |
0978e012 JP |
2833 | pr_err("hotkey_source_mask: " |
2834 | "failed to update the firmware event mask!\n"); | |
0d922e3b HMH |
2835 | |
2836 | if (r_ev) | |
0978e012 JP |
2837 | pr_notice("hotkey_source_mask: " |
2838 | "some important events were disabled: 0x%04x\n", | |
2839 | r_ev); | |
0d922e3b | 2840 | |
56e2c200 HMH |
2841 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2842 | ||
0d922e3b | 2843 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2844 | } |
2845 | ||
b4dd04ac | 2846 | static DEVICE_ATTR_RW(hotkey_source_mask); |
01e88f25 HMH |
2847 | |
2848 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2849 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2850 | struct device_attribute *attr, | |
2851 | char *buf) | |
2852 | { | |
2853 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2854 | } | |
2855 | ||
2856 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2857 | struct device_attribute *attr, | |
2858 | const char *buf, size_t count) | |
2859 | { | |
2860 | unsigned long t; | |
2861 | ||
2862 | if (parse_strtoul(buf, 25, &t)) | |
2863 | return -EINVAL; | |
2864 | ||
7646ea88 | 2865 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2866 | return -ERESTARTSYS; |
2867 | ||
db25f16d HMH |
2868 | hotkey_poll_set_freq(t); |
2869 | hotkey_poll_setup(true); | |
01e88f25 | 2870 | |
01e88f25 HMH |
2871 | mutex_unlock(&hotkey_mutex); |
2872 | ||
56e2c200 HMH |
2873 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2874 | ||
01e88f25 HMH |
2875 | return count; |
2876 | } | |
2877 | ||
b4dd04ac | 2878 | static DEVICE_ATTR_RW(hotkey_poll_freq); |
01e88f25 HMH |
2879 | |
2880 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2881 | ||
50ebec09 | 2882 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2883 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2884 | struct device_attribute *attr, | |
2885 | char *buf) | |
2886 | { | |
19d337df JB |
2887 | int res; |
2888 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2889 | if (res < 0) |
2890 | return res; | |
2891 | ||
19d337df JB |
2892 | /* Opportunistic update */ |
2893 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2894 | ||
2895 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2896 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2897 | } |
2898 | ||
b4dd04ac | 2899 | static DEVICE_ATTR_RO(hotkey_radio_sw); |
74941a69 | 2900 | |
50ebec09 HMH |
2901 | static void hotkey_radio_sw_notify_change(void) |
2902 | { | |
2903 | if (tp_features.hotkey_wlsw) | |
2904 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2905 | "hotkey_radio_sw"); | |
2906 | } | |
2907 | ||
6c231bd5 HMH |
2908 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2909 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2910 | struct device_attribute *attr, | |
2911 | char *buf) | |
2912 | { | |
2913 | int res, s; | |
2914 | res = hotkey_get_tablet_mode(&s); | |
2915 | if (res < 0) | |
2916 | return res; | |
2917 | ||
2918 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2919 | } | |
2920 | ||
b4dd04ac | 2921 | static DEVICE_ATTR_RO(hotkey_tablet_mode); |
6c231bd5 HMH |
2922 | |
2923 | static void hotkey_tablet_mode_notify_change(void) | |
2924 | { | |
2925 | if (tp_features.hotkey_tablet) | |
2926 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2927 | "hotkey_tablet_mode"); | |
2928 | } | |
2929 | ||
50ebec09 | 2930 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2931 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2932 | struct device_attribute *attr, | |
2933 | char *buf) | |
2934 | { | |
2935 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2936 | } | |
2937 | ||
5fb73bc2 | 2938 | static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
a713b4d7 | 2939 | |
1d5a2b54 | 2940 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2941 | { |
0d922e3b HMH |
2942 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2943 | "wakeup_reason"); | |
50ebec09 HMH |
2944 | } |
2945 | ||
2946 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2947 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2948 | struct device_attribute *attr, | |
2949 | char *buf) | |
2950 | { | |
2951 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2952 | } | |
2953 | ||
5fb73bc2 BM |
2954 | static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, |
2955 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
a713b4d7 | 2956 | |
1d5a2b54 | 2957 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2958 | { |
0d922e3b HMH |
2959 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2960 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2961 | } |
2962 | ||
b790ceeb BN |
2963 | /* sysfs adaptive kbd mode --------------------------------------------- */ |
2964 | ||
2965 | static int adaptive_keyboard_get_mode(void); | |
2966 | static int adaptive_keyboard_set_mode(int new_mode); | |
2967 | ||
2968 | enum ADAPTIVE_KEY_MODE { | |
2969 | HOME_MODE, | |
2970 | WEB_BROWSER_MODE, | |
2971 | WEB_CONFERENCE_MODE, | |
2972 | FUNCTION_MODE, | |
2973 | LAYFLAT_MODE | |
2974 | }; | |
2975 | ||
2976 | static ssize_t adaptive_kbd_mode_show(struct device *dev, | |
2977 | struct device_attribute *attr, | |
2978 | char *buf) | |
2979 | { | |
abf9dc0d | 2980 | int current_mode; |
b790ceeb BN |
2981 | |
2982 | current_mode = adaptive_keyboard_get_mode(); | |
2983 | if (current_mode < 0) | |
2984 | return current_mode; | |
2985 | ||
2986 | return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); | |
2987 | } | |
2988 | ||
2989 | static ssize_t adaptive_kbd_mode_store(struct device *dev, | |
2990 | struct device_attribute *attr, | |
2991 | const char *buf, size_t count) | |
2992 | { | |
2993 | unsigned long t; | |
2994 | int res; | |
2995 | ||
2996 | if (parse_strtoul(buf, LAYFLAT_MODE, &t)) | |
2997 | return -EINVAL; | |
2998 | ||
2999 | res = adaptive_keyboard_set_mode(t); | |
3000 | return (res < 0) ? res : count; | |
3001 | } | |
3002 | ||
3003 | static DEVICE_ATTR_RW(adaptive_kbd_mode); | |
3004 | ||
3005 | static struct attribute *adaptive_kbd_attributes[] = { | |
3006 | &dev_attr_adaptive_kbd_mode.attr, | |
3007 | NULL | |
3008 | }; | |
3009 | ||
3010 | static const struct attribute_group adaptive_kbd_attr_group = { | |
3011 | .attrs = adaptive_kbd_attributes, | |
3012 | }; | |
3013 | ||
a0416420 HMH |
3014 | /* --------------------------------------------------------------------- */ |
3015 | ||
ff80f137 HMH |
3016 | static struct attribute *hotkey_attributes[] __initdata = { |
3017 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 3018 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 3019 | &dev_attr_hotkey_bios_mask.attr, |
5fb73bc2 BM |
3020 | &dev_attr_wakeup_reason.attr, |
3021 | &dev_attr_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
3022 | &dev_attr_hotkey_mask.attr, |
3023 | &dev_attr_hotkey_all_mask.attr, | |
0118c2d3 | 3024 | &dev_attr_hotkey_adaptive_all_mask.attr, |
01e88f25 | 3025 | &dev_attr_hotkey_recommended_mask.attr, |
0d922e3b | 3026 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3027 | &dev_attr_hotkey_source_mask.attr, |
3028 | &dev_attr_hotkey_poll_freq.attr, | |
3029 | #endif | |
ff80f137 HMH |
3030 | }; |
3031 | ||
19d337df JB |
3032 | /* |
3033 | * Sync both the hw and sw blocking state of all switches | |
3034 | */ | |
733e27c1 HMH |
3035 | static void tpacpi_send_radiosw_update(void) |
3036 | { | |
3037 | int wlsw; | |
3038 | ||
19d337df JB |
3039 | /* |
3040 | * We must sync all rfkill controllers *before* issuing any | |
3041 | * rfkill input events, or we will race the rfkill core input | |
3042 | * handler. | |
3043 | * | |
c8440336 | 3044 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
3045 | * for the above. |
3046 | * | |
3047 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
3048 | */ | |
3049 | ||
3050 | wlsw = hotkey_get_wlsw(); | |
3051 | ||
3052 | /* Sync hw blocking state first if it is hw-blocked */ | |
3053 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
3054 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 3055 | |
19d337df JB |
3056 | /* Sync sw blocking state */ |
3057 | tpacpi_rfk_update_swstate_all(); | |
3058 | ||
3059 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3060 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3061 | tpacpi_rfk_update_hwblock_state(false); | |
3062 | ||
3063 | /* Issue rfkill input event for WLSW switch */ | |
3064 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3065 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3066 | ||
3067 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3068 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3069 | input_sync(tpacpi_inputdev); |
3070 | ||
3071 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3072 | } | |
19d337df JB |
3073 | |
3074 | /* | |
3075 | * this can be unconditional, as we will poll state again | |
3076 | * if userspace uses the notify to read data | |
3077 | */ | |
733e27c1 HMH |
3078 | hotkey_radio_sw_notify_change(); |
3079 | } | |
3080 | ||
9c0a76e1 HMH |
3081 | static void hotkey_exit(void) |
3082 | { | |
3083 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3084 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3085 | hotkey_poll_stop_sync(); |
db25f16d | 3086 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3087 | #endif |
3088 | ||
3089 | if (hotkey_dev_attributes) | |
3090 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3091 | ||
4be73005 | 3092 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3093 | "restoring original HKEY status and mask\n"); |
3094 | /* yes, there is a bitwise or below, we want the | |
3095 | * functions to be called even if one of them fail */ | |
3096 | if (((tp_features.hotkey_mask && | |
3097 | hotkey_mask_set(hotkey_orig_mask)) | | |
3098 | hotkey_status_set(false)) != 0) | |
0978e012 | 3099 | pr_err("failed to restore hot key mask " |
4be73005 | 3100 | "to BIOS defaults\n"); |
9c0a76e1 HMH |
3101 | } |
3102 | ||
de4c8cc7 HMH |
3103 | static void __init hotkey_unmap(const unsigned int scancode) |
3104 | { | |
3105 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3106 | clear_bit(hotkey_keycode_map[scancode], | |
3107 | tpacpi_inputdev->keybit); | |
3108 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3109 | } | |
3110 | } | |
3111 | ||
0d922e3b HMH |
3112 | /* |
3113 | * HKEY quirks: | |
3114 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3115 | */ | |
3116 | ||
3117 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3118 | ||
3119 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3120 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3121 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3122 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3123 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3124 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3125 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3126 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3127 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3128 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3129 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3130 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3131 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3132 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3133 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3134 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3135 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3136 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3137 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3138 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3139 | }; | |
3140 | ||
fc6e7568 HMH |
3141 | typedef u16 tpacpi_keymap_entry_t; |
3142 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3143 | |
b3180028 L |
3144 | static int hotkey_init_tablet_mode(void) |
3145 | { | |
cb2bf251 DH |
3146 | int in_tablet_mode = 0, res; |
3147 | char *type = NULL; | |
b3180028 | 3148 | |
b3180028 | 3149 | if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) { |
b03f4d49 | 3150 | /* For X41t, X60t, X61t Tablets... */ |
b3180028 L |
3151 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG; |
3152 | in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK); | |
3153 | type = "MHKG"; | |
b03f4d49 L |
3154 | } else if (acpi_evalf(ec_handle, &res, "CMMD", "qd")) { |
3155 | /* For X1 Yoga (2016) */ | |
3156 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_CMMD; | |
3157 | in_tablet_mode = res == TP_EC_CMMD_TABLET_MODE; | |
3158 | type = "CMMD"; | |
b3180028 L |
3159 | } |
3160 | ||
3161 | if (!tp_features.hotkey_tablet) | |
3162 | return 0; | |
3163 | ||
3164 | pr_info("Tablet mode switch found (type: %s), currently in %s mode\n", | |
3165 | type, in_tablet_mode ? "tablet" : "laptop"); | |
3166 | ||
3167 | res = add_to_attr_set(hotkey_dev_attributes, | |
3168 | &dev_attr_hotkey_tablet_mode.attr); | |
3169 | if (res) | |
3170 | return -1; | |
3171 | ||
3172 | return in_tablet_mode; | |
3173 | } | |
3174 | ||
a5763f22 | 3175 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3176 | { |
0f089147 HMH |
3177 | /* Requirements for changing the default keymaps: |
3178 | * | |
3179 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3180 | * good reasons. Do not change them unless you have deep | |
3181 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3182 | * the various ThinkPad models. The driver behaves | |
3183 | * differently for KEY_RESERVED: such keys have their | |
3184 | * hot key mask *unset* in mask_recommended, and also | |
3185 | * in the initial hot key mask programmed into the | |
3186 | * firmware at driver load time, which means the firm- | |
3187 | * ware may react very differently if you change them to | |
3188 | * something else; | |
3189 | * | |
3190 | * 2. You must be subscribed to the linux-thinkpad and | |
3191 | * ibm-acpi-devel mailing lists, and you should read the | |
3192 | * list archives since 2007 if you want to change the | |
3193 | * keymaps. This requirement exists so that you will | |
3194 | * know the past history of problems with the thinkpad- | |
3195 | * acpi driver keymaps, and also that you will be | |
3196 | * listening to any bug reports; | |
3197 | * | |
3198 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3199 | * for merging, *ever*. Send them to the linux-acpi | |
3200 | * mailinglist for comments. Merging is to be done only | |
3201 | * through acpi-test and the ACPI maintainer. | |
3202 | * | |
3203 | * If the above is too much to ask, don't change the keymap. | |
3204 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3205 | */ | |
d1e14dca HMH |
3206 | |
3207 | enum keymap_index { | |
3208 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3209 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3210 | }; | |
3211 | ||
3212 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3213 | /* Generic keymap for IBM ThinkPads */ | |
3214 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3215 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3216 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3217 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3218 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3219 | |
3220 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3221 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3222 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3223 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3224 | |
0d922e3b | 3225 | /* brightness: firmware always reacts to them */ |
e927c08d | 3226 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3227 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3228 | |
3229 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3230 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3231 | |
edf0e0e5 HMH |
3232 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3233 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3234 | |
3235 | /* Volume: firmware always react to it and reprograms | |
3236 | * the built-in *extra* mixer. Never map it to control | |
3237 | * another mixer by default. */ | |
e927c08d HMH |
3238 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3239 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3240 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3241 | |
edf0e0e5 | 3242 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3243 | |
edf0e0e5 HMH |
3244 | /* (assignments unknown, please report if found) */ |
3245 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3246 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
6a68d855 BN |
3247 | |
3248 | /* No assignments, only used for Adaptive keyboards. */ | |
3249 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3250 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3251 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3252 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3253 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
d1e14dca HMH |
3254 | }, |
3255 | ||
3256 | /* Generic keymap for Lenovo ThinkPads */ | |
3257 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3258 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3259 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3260 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3261 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3262 | |
3263 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3264 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3265 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3266 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3267 | |
de4c8cc7 HMH |
3268 | /* These should be enabled --only-- when ACPI video |
3269 | * is disabled (i.e. in "vendor" mode), and are handled | |
3270 | * in a special way by the init code */ | |
3271 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3272 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3273 | |
edf0e0e5 | 3274 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3275 | |
edf0e0e5 HMH |
3276 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3277 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3278 | |
3279 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3280 | * react to it and reprograms the built-in *extra* mixer. | |
3281 | * Never map it to control another mixer by default. | |
3282 | * | |
3283 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3284 | * these over the regular keyboard, so these are no-ops, | |
3285 | * but there are still weird bugs re. MUTE, so do not | |
3286 | * change unless you get test reports from all Lenovo | |
3287 | * models. May cause the BIOS to interfere with the | |
3288 | * HDA mixer. | |
3289 | */ | |
e927c08d HMH |
3290 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3291 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3292 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3293 | |
edf0e0e5 | 3294 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3295 | |
33009557 AL |
3296 | /* (assignments unknown, please report if found) */ |
3297 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3298 | ||
3299 | /* | |
3300 | * The mic mute button only sends 0x1a. It does not | |
3301 | * automatically mute the mic or change the mute light. | |
3302 | */ | |
3303 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3304 | ||
edf0e0e5 | 3305 | /* (assignments unknown, please report if found) */ |
33009557 | 3306 | KEY_UNKNOWN, |
8b9dd4fa HG |
3307 | |
3308 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3309 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
6a68d855 BN |
3310 | |
3311 | /* | |
3312 | * These are the adaptive keyboard keycodes for Carbon X1 2014. | |
3313 | * The first item in this list is the Mute button which is | |
3314 | * emitted with 0x103 through | |
3315 | * adaptive_keyboard_hotkey_notify_hotkey() when the sound | |
3316 | * symbol is held. | |
3317 | * We'll need to offset those by 0x20. | |
3318 | */ | |
3319 | KEY_RESERVED, /* Mute held, 0x103 */ | |
3320 | KEY_BRIGHTNESS_MIN, /* Backlight off */ | |
3321 | KEY_RESERVED, /* Clipping tool */ | |
3322 | KEY_RESERVED, /* Cloud */ | |
3323 | KEY_RESERVED, | |
3324 | KEY_VOICECOMMAND, /* Voice */ | |
3325 | KEY_RESERVED, | |
3326 | KEY_RESERVED, /* Gestures */ | |
3327 | KEY_RESERVED, | |
3328 | KEY_RESERVED, | |
3329 | KEY_RESERVED, | |
3330 | KEY_CONFIG, /* Settings */ | |
3331 | KEY_RESERVED, /* New tab */ | |
3332 | KEY_REFRESH, /* Reload */ | |
3333 | KEY_BACK, /* Back */ | |
3334 | KEY_RESERVED, /* Microphone down */ | |
3335 | KEY_RESERVED, /* Microphone up */ | |
3336 | KEY_RESERVED, /* Microphone cancellation */ | |
3337 | KEY_RESERVED, /* Camera mode */ | |
3338 | KEY_RESERVED, /* Rotate display, 0x116 */ | |
d1e14dca | 3339 | }, |
edf0e0e5 HMH |
3340 | }; |
3341 | ||
d1e14dca HMH |
3342 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3343 | /* Generic maps (fallback) */ | |
3344 | { | |
3345 | .vendor = PCI_VENDOR_ID_IBM, | |
3346 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3347 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3348 | }, | |
3349 | { | |
3350 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3351 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3352 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3353 | }, | |
3354 | }; | |
3355 | ||
3356 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3357 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3358 | |
6a38abbf | 3359 | int res, i; |
74941a69 | 3360 | int status; |
1b6521dc | 3361 | int hkeyv; |
d89a727a HMH |
3362 | bool radiosw_state = false; |
3363 | bool tabletsw_state = false; | |
b86c4722 | 3364 | |
0d922e3b | 3365 | unsigned long quirks; |
d1e14dca | 3366 | unsigned long keymap_id; |
0d922e3b | 3367 | |
56e2c200 HMH |
3368 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3369 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3370 | |
6a38abbf | 3371 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3372 | BUG_ON(tpacpi_inputdev->open != NULL || |
3373 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3374 | |
e0c7dfe7 | 3375 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3376 | mutex_init(&hotkey_mutex); |
5fba344c | 3377 | |
01e88f25 | 3378 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3379 | mutex_init(&hotkey_thread_data_mutex); |
3380 | #endif | |
3381 | ||
56b6aeb0 | 3382 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3383 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3384 | |
56e2c200 HMH |
3385 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3386 | "hotkeys are %s\n", | |
d8fd94d9 | 3387 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3388 | |
9c0a76e1 HMH |
3389 | if (!tp_features.hotkey) |
3390 | return 1; | |
a0416420 | 3391 | |
0d922e3b HMH |
3392 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3393 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3394 | ||
d64c81c4 HMH |
3395 | tpacpi_disable_brightness_delay(); |
3396 | ||
0d922e3b HMH |
3397 | /* MUST have enough space for all attributes to be added to |
3398 | * hotkey_dev_attributes */ | |
3399 | hotkey_dev_attributes = create_attr_set( | |
3400 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3401 | NULL); | |
9c0a76e1 HMH |
3402 | if (!hotkey_dev_attributes) |
3403 | return -ENOMEM; | |
3404 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3405 | hotkey_attributes, | |
3406 | ARRAY_SIZE(hotkey_attributes)); | |
3407 | if (res) | |
3408 | goto err_exit; | |
3409 | ||
0d922e3b | 3410 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3411 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3412 | for HKEY interface version 0x100 */ | |
3413 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
0118c2d3 DW |
3414 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3415 | "firmware HKEY interface version: 0x%x\n", | |
3416 | hkeyv); | |
3417 | ||
3418 | switch (hkeyv >> 8) { | |
3419 | case 1: | |
9c0a76e1 HMH |
3420 | /* |
3421 | * MHKV 0x100 in A31, R40, R40e, | |
3422 | * T4x, X31, and later | |
3423 | */ | |
0d922e3b HMH |
3424 | |
3425 | /* Paranoia check AND init hotkey_all_mask */ | |
3426 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3427 | "MHKA", "qd")) { | |
0118c2d3 DW |
3428 | pr_err("missing MHKA handler, please report this to %s\n", |
3429 | TPACPI_MAIL); | |
3430 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3431 | hotkey_all_mask = 0x080cU; | |
3432 | } else { | |
3433 | tp_features.hotkey_mask = 1; | |
3434 | } | |
3435 | break; | |
3436 | ||
3437 | case 2: | |
3438 | /* | |
3439 | * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) | |
3440 | */ | |
3441 | ||
3442 | /* Paranoia check AND init hotkey_all_mask */ | |
3443 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3444 | "MHKA", "dd", 1)) { | |
3445 | pr_err("missing MHKA handler, please report this to %s\n", | |
0d922e3b HMH |
3446 | TPACPI_MAIL); |
3447 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3448 | hotkey_all_mask = 0x080cU; | |
3449 | } else { | |
3450 | tp_features.hotkey_mask = 1; | |
3451 | } | |
0118c2d3 DW |
3452 | |
3453 | /* | |
3454 | * Check if we have an adaptive keyboard, like on the | |
3455 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3456 | */ | |
3457 | if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, | |
3458 | "MHKA", "dd", 2)) { | |
3459 | if (hotkey_adaptive_all_mask != 0) { | |
3460 | tp_features.has_adaptive_kbd = true; | |
3461 | res = sysfs_create_group( | |
3462 | &tpacpi_pdev->dev.kobj, | |
3463 | &adaptive_kbd_attr_group); | |
3464 | if (res) | |
3465 | goto err_exit; | |
3466 | } | |
3467 | } else { | |
3468 | tp_features.has_adaptive_kbd = false; | |
3469 | hotkey_adaptive_all_mask = 0x0U; | |
3470 | } | |
3471 | break; | |
3472 | ||
3473 | default: | |
3474 | pr_err("unknown version of the HKEY interface: 0x%x\n", | |
3475 | hkeyv); | |
3476 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
3477 | break; | |
1b6521dc | 3478 | } |
9c0a76e1 | 3479 | } |
56b6aeb0 | 3480 | |
56e2c200 HMH |
3481 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3482 | "hotkey masks are %s\n", | |
9c0a76e1 | 3483 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3484 | |
0d922e3b HMH |
3485 | /* Init hotkey_all_mask if not initialized yet */ |
3486 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3487 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3488 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3489 | |
0d922e3b | 3490 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3491 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3492 | /* hotkey_source_mask *must* be zero for |
3493 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3494 | res = hotkey_mask_get(); |
3495 | if (res) | |
3496 | goto err_exit; | |
3497 | ||
0d922e3b HMH |
3498 | hotkey_orig_mask = hotkey_acpi_mask; |
3499 | } else { | |
3500 | hotkey_orig_mask = hotkey_all_mask; | |
3501 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3502 | } |
74941a69 | 3503 | |
a73f3091 HMH |
3504 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3505 | if (dbg_wlswemul) { | |
3506 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3507 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3508 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3509 | } else |
3510 | #endif | |
9c0a76e1 HMH |
3511 | /* Not all thinkpads have a hardware radio switch */ |
3512 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3513 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3514 | radiosw_state = !!status; |
0978e012 | 3515 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3516 | enabled(status, 0)); |
3a872080 HMH |
3517 | } |
3518 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3519 | res = add_to_attr_set(hotkey_dev_attributes, |
3520 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3521 | |
b3180028 L |
3522 | res = hotkey_init_tablet_mode(); |
3523 | if (res < 0) | |
3524 | goto err_exit; | |
3525 | ||
3526 | tabletsw_state = res; | |
6c231bd5 | 3527 | |
b3180028 L |
3528 | res = register_attr_set_with_sysfs(hotkey_dev_attributes, |
3529 | &tpacpi_pdev->dev.kobj); | |
9c0a76e1 HMH |
3530 | if (res) |
3531 | goto err_exit; | |
6a38abbf | 3532 | |
9c0a76e1 | 3533 | /* Set up key map */ |
9c0a76e1 HMH |
3534 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3535 | GFP_KERNEL); | |
3536 | if (!hotkey_keycode_map) { | |
0978e012 | 3537 | pr_err("failed to allocate memory for key map\n"); |
9c0a76e1 HMH |
3538 | res = -ENOMEM; |
3539 | goto err_exit; | |
3540 | } | |
edf0e0e5 | 3541 | |
d1e14dca HMH |
3542 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3543 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3544 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3545 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3546 | "using keymap number %lu\n", keymap_id); | |
3547 | ||
3548 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3549 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3550 | |
792979c8 | 3551 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3552 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3553 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3554 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3555 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3556 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3557 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3558 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3559 | } else { |
3560 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3561 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3562 | } |
9c0a76e1 | 3563 | } |
6a38abbf | 3564 | |
9c0a76e1 | 3565 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3566 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3567 | input_report_switch(tpacpi_inputdev, |
3568 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3569 | } |
3570 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3571 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3572 | input_report_switch(tpacpi_inputdev, |
3573 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3574 | } |
5c29d58f | 3575 | |
9c0a76e1 | 3576 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3577 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3578 | * been called before this point */ | |
b33c6ce5 | 3579 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
0978e012 JP |
3580 | pr_info("This ThinkPad has standard ACPI backlight " |
3581 | "brightness control, supported by the ACPI " | |
3582 | "video driver\n"); | |
3583 | pr_notice("Disabling thinkpad-acpi brightness events " | |
3584 | "by default...\n"); | |
9c0a76e1 | 3585 | |
de4c8cc7 HMH |
3586 | /* Disable brightness up/down on Lenovo thinkpads when |
3587 | * ACPI is handling them, otherwise it is plain impossible | |
3588 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3589 | hotkey_reserved_mask |= |
3590 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3591 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3592 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3593 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3594 | } |
ff80f137 | 3595 | |
230d8cf2 | 3596 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3597 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3598 | & ~hotkey_all_mask | |
3599 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3600 | |
3601 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3602 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3603 | hotkey_source_mask, hotkey_poll_freq); | |
3604 | #endif | |
3605 | ||
56e2c200 HMH |
3606 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3607 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3608 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3609 | if (res) { |
3610 | hotkey_exit(); | |
3611 | return res; | |
3612 | } | |
0d922e3b HMH |
3613 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3614 | | hotkey_driver_mask) | |
3615 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3616 | if (res < 0 && res != -ENXIO) { |
3617 | hotkey_exit(); | |
3618 | return res; | |
3619 | } | |
0d922e3b HMH |
3620 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3621 | & ~hotkey_reserved_mask; | |
3622 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3623 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3624 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3625 | |
9c0a76e1 HMH |
3626 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3627 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3628 | |
db25f16d | 3629 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3630 | |
9c0a76e1 | 3631 | return 0; |
01e88f25 | 3632 | |
9c0a76e1 HMH |
3633 | err_exit: |
3634 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3635 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3636 | &adaptive_kbd_attr_group); | |
3637 | ||
9c0a76e1 | 3638 | hotkey_dev_attributes = NULL; |
a0416420 | 3639 | |
72a979f0 | 3640 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3641 | } |
3642 | ||
3a9d20bd SS |
3643 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3644 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3645 | * We support Home mode and Function mode currently. | |
3646 | * | |
3647 | * Will consider support rest of modes in future. | |
3648 | * | |
3649 | */ | |
b201a47f | 3650 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3651 | HOME_MODE, |
3652 | /* WEB_BROWSER_MODE = 2, | |
3653 | WEB_CONFERENCE_MODE = 3, */ | |
3654 | FUNCTION_MODE | |
3655 | }; | |
3656 | ||
3657 | #define DFR_CHANGE_ROW 0x101 | |
3658 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 BN |
3659 | #define FIRST_ADAPTIVE_KEY 0x103 |
3660 | #define ADAPTIVE_KEY_OFFSET 0x020 | |
3a9d20bd SS |
3661 | |
3662 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3663 | * release Fn key, previous mode be restored. | |
3664 | */ | |
3665 | static bool adaptive_keyboard_mode_is_saved; | |
3666 | static int adaptive_keyboard_prev_mode; | |
3667 | ||
f74587fb BN |
3668 | static int adaptive_keyboard_get_mode(void) |
3669 | { | |
3670 | int mode = 0; | |
3671 | ||
3672 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3673 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3674 | return -EIO; | |
3675 | } | |
3676 | ||
3677 | return mode; | |
3678 | } | |
3679 | ||
3680 | static int adaptive_keyboard_set_mode(int new_mode) | |
3681 | { | |
3682 | if (new_mode < 0 || | |
3683 | new_mode > LAYFLAT_MODE) | |
3684 | return -EINVAL; | |
3685 | ||
3686 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3687 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3688 | return -EIO; | |
3689 | } | |
3690 | ||
3691 | return 0; | |
3692 | } | |
3693 | ||
3a9d20bd SS |
3694 | static int adaptive_keyboard_get_next_mode(int mode) |
3695 | { | |
3696 | size_t i; | |
3697 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3698 | ||
3699 | for (i = 0; i <= max_mode; i++) { | |
3700 | if (adaptive_keyboard_modes[i] == mode) | |
3701 | break; | |
3702 | } | |
3703 | ||
3704 | if (i >= max_mode) | |
3705 | i = 0; | |
3706 | else | |
3707 | i++; | |
3708 | ||
3709 | return adaptive_keyboard_modes[i]; | |
3710 | } | |
3711 | ||
3712 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3713 | { | |
abf9dc0d | 3714 | int current_mode = 0; |
3a9d20bd | 3715 | int new_mode = 0; |
6a68d855 | 3716 | int keycode; |
3a9d20bd SS |
3717 | |
3718 | switch (scancode) { | |
3719 | case DFR_CHANGE_ROW: | |
3720 | if (adaptive_keyboard_mode_is_saved) { | |
3721 | new_mode = adaptive_keyboard_prev_mode; | |
3722 | adaptive_keyboard_mode_is_saved = false; | |
3723 | } else { | |
f74587fb BN |
3724 | current_mode = adaptive_keyboard_get_mode(); |
3725 | if (current_mode < 0) | |
3a9d20bd | 3726 | return false; |
f74587fb BN |
3727 | new_mode = adaptive_keyboard_get_next_mode( |
3728 | current_mode); | |
3a9d20bd SS |
3729 | } |
3730 | ||
f74587fb | 3731 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3732 | return false; |
3a9d20bd SS |
3733 | |
3734 | return true; | |
3735 | ||
3736 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3737 | current_mode = adaptive_keyboard_get_mode(); |
3738 | if (current_mode < 0) | |
3a9d20bd | 3739 | return false; |
3a9d20bd | 3740 | |
f74587fb BN |
3741 | adaptive_keyboard_prev_mode = current_mode; |
3742 | adaptive_keyboard_mode_is_saved = true; | |
3743 | ||
3744 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3745 | return false; | |
3a9d20bd SS |
3746 | return true; |
3747 | ||
3748 | default: | |
741d98c7 DC |
3749 | if (scancode < FIRST_ADAPTIVE_KEY || |
3750 | scancode >= FIRST_ADAPTIVE_KEY + TPACPI_HOTKEY_MAP_LEN - | |
3751 | ADAPTIVE_KEY_OFFSET) { | |
6a68d855 BN |
3752 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
3753 | scancode); | |
3754 | return false; | |
3755 | } | |
3756 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + ADAPTIVE_KEY_OFFSET]; | |
3757 | if (keycode != KEY_RESERVED) { | |
3758 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3759 | ||
3760 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3761 | input_sync(tpacpi_inputdev); | |
3762 | ||
3763 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3764 | input_sync(tpacpi_inputdev); | |
3765 | ||
3766 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3767 | } | |
3768 | return true; | |
3a9d20bd SS |
3769 | } |
3770 | } | |
3771 | ||
3827e7a3 HMH |
3772 | static bool hotkey_notify_hotkey(const u32 hkey, |
3773 | bool *send_acpi_ev, | |
3774 | bool *ignore_acpi_ev) | |
3775 | { | |
3776 | /* 0x1000-0x1FFF: key presses */ | |
3777 | unsigned int scancode = hkey & 0xfff; | |
3778 | *send_acpi_ev = true; | |
3779 | *ignore_acpi_ev = false; | |
3780 | ||
34a656d2 HMH |
3781 | /* HKEY event 0x1001 is scancode 0x00 */ |
3782 | if (scancode > 0 && scancode <= TPACPI_HOTKEY_MAP_LEN) { | |
3827e7a3 HMH |
3783 | scancode--; |
3784 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3785 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3786 | *send_acpi_ev = false; |
3787 | } else { | |
3788 | *ignore_acpi_ev = true; | |
3789 | } | |
3790 | return true; | |
3a9d20bd SS |
3791 | } else { |
3792 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); | |
3827e7a3 HMH |
3793 | } |
3794 | return false; | |
3795 | } | |
3796 | ||
3797 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3798 | bool *send_acpi_ev, | |
3799 | bool *ignore_acpi_ev) | |
3800 | { | |
3801 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3802 | *send_acpi_ev = true; | |
3803 | *ignore_acpi_ev = false; | |
3804 | ||
3805 | switch (hkey) { | |
67bcae6e HMH |
3806 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3807 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3808 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3809 | *ignore_acpi_ev = true; | |
3810 | break; | |
3811 | ||
67bcae6e HMH |
3812 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3813 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3814 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3815 | *ignore_acpi_ev = true; | |
3816 | break; | |
3817 | ||
67bcae6e HMH |
3818 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3819 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3820 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3821 | /* how to auto-heal: */ |
3822 | /* 2313: woke up from S3, go to S4/S5 */ | |
3823 | /* 2413: woke up from S4, go to S5 */ | |
3824 | break; | |
3825 | ||
3827e7a3 HMH |
3826 | default: |
3827 | return false; | |
3828 | } | |
3829 | ||
3830 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3831 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3832 | hotkey_wakeup_reason_notify_change(); |
3833 | } | |
3834 | return true; | |
3835 | } | |
3836 | ||
a50245af HMH |
3837 | static bool hotkey_notify_dockevent(const u32 hkey, |
3838 | bool *send_acpi_ev, | |
3839 | bool *ignore_acpi_ev) | |
3840 | { | |
3841 | /* 0x4000-0x4FFF: dock-related events */ | |
3842 | *send_acpi_ev = true; | |
3843 | *ignore_acpi_ev = false; | |
3844 | ||
3845 | switch (hkey) { | |
3846 | case TP_HKEY_EV_UNDOCK_ACK: | |
3847 | /* ACPI undock operation completed after wakeup */ | |
3848 | hotkey_autosleep_ack = 1; | |
3849 | pr_info("undocked\n"); | |
3850 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3851 | return true; | |
3852 | ||
3853 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3854 | pr_info("docked into hotplug port replicator\n"); | |
3855 | return true; | |
3856 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3857 | pr_info("undocked from hotplug port replicator\n"); | |
3858 | return true; | |
3859 | ||
3860 | default: | |
3861 | return false; | |
3862 | } | |
3863 | } | |
3864 | ||
3827e7a3 HMH |
3865 | static bool hotkey_notify_usrevent(const u32 hkey, |
3866 | bool *send_acpi_ev, | |
3867 | bool *ignore_acpi_ev) | |
3868 | { | |
3869 | /* 0x5000-0x5FFF: human interface helpers */ | |
3870 | *send_acpi_ev = true; | |
3871 | *ignore_acpi_ev = false; | |
3872 | ||
3873 | switch (hkey) { | |
67bcae6e HMH |
3874 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3875 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3876 | return true; |
3877 | ||
67bcae6e HMH |
3878 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3879 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3880 | tpacpi_input_send_tabletsw(); |
3881 | hotkey_tablet_mode_notify_change(); | |
3882 | *send_acpi_ev = false; | |
3883 | return true; | |
3884 | ||
67bcae6e HMH |
3885 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3886 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3887 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3888 | /* do not propagate these events */ |
3827e7a3 HMH |
3889 | *ignore_acpi_ev = true; |
3890 | return true; | |
3891 | ||
3892 | default: | |
3893 | return false; | |
3894 | } | |
3895 | } | |
3896 | ||
9ebd9e83 HMH |
3897 | static void thermal_dump_all_sensors(void); |
3898 | ||
2d43f671 | 3899 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
3900 | bool *send_acpi_ev, |
3901 | bool *ignore_acpi_ev) | |
3902 | { | |
9ebd9e83 HMH |
3903 | bool known = true; |
3904 | ||
2d43f671 | 3905 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
3906 | *send_acpi_ev = true; |
3907 | *ignore_acpi_ev = false; | |
3908 | ||
3909 | switch (hkey) { | |
9ebd9e83 | 3910 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
0978e012 | 3911 | pr_info("EC reports that Thermal Table has changed\n"); |
9ebd9e83 HMH |
3912 | /* recommended action: do nothing, we don't have |
3913 | * Lenovo ATM information */ | |
3914 | return true; | |
67bcae6e | 3915 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 3916 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 3917 | /* recommended action: warn user through gui */ |
9ebd9e83 | 3918 | break; |
67bcae6e | 3919 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 3920 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 3921 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3922 | break; |
67bcae6e | 3923 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
0978e012 | 3924 | pr_crit("THERMAL ALARM: " |
106b4e66 HMH |
3925 | "a sensor reports something is too hot!\n"); |
3926 | /* recommended action: warn user through gui, that */ | |
3927 | /* some internal component is too hot */ | |
9ebd9e83 | 3928 | break; |
67bcae6e | 3929 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
0978e012 JP |
3930 | pr_alert("THERMAL EMERGENCY: " |
3931 | "a sensor reports something is extremely hot!\n"); | |
106b4e66 | 3932 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3933 | break; |
6f62bc3e RH |
3934 | case TP_HKEY_EV_AC_CHANGED: |
3935 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
3936 | * AC status changed; can be triggered by plugging or | |
3937 | * unplugging AC adapter, docking or undocking. */ | |
3938 | ||
3939 | /* fallthrough */ | |
2d43f671 HMH |
3940 | |
3941 | case TP_HKEY_EV_KEY_NUMLOCK: | |
3942 | case TP_HKEY_EV_KEY_FN: | |
67ab6248 | 3943 | case TP_HKEY_EV_KEY_FN_ESC: |
2d43f671 HMH |
3944 | /* key press events, we just ignore them as long as the EC |
3945 | * is still reporting them in the normal keyboard stream */ | |
3946 | *send_acpi_ev = false; | |
3947 | *ignore_acpi_ev = true; | |
3948 | return true; | |
3949 | ||
b03f4d49 L |
3950 | case TP_HKEY_EV_TABLET_CHANGED: |
3951 | tpacpi_input_send_tabletsw(); | |
3952 | hotkey_tablet_mode_notify_change(); | |
3953 | *send_acpi_ev = false; | |
3954 | break; | |
3955 | ||
106b4e66 | 3956 | default: |
2d43f671 | 3957 | pr_warn("unknown possible thermal alarm or keyboard event received\n"); |
9ebd9e83 | 3958 | known = false; |
106b4e66 | 3959 | } |
9ebd9e83 HMH |
3960 | |
3961 | thermal_dump_all_sensors(); | |
3962 | ||
3963 | return known; | |
106b4e66 HMH |
3964 | } |
3965 | ||
56b6aeb0 HMH |
3966 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3967 | { | |
6a38abbf | 3968 | u32 hkey; |
3827e7a3 HMH |
3969 | bool send_acpi_ev; |
3970 | bool ignore_acpi_ev; | |
3971 | bool known_ev; | |
3eea123d HMH |
3972 | |
3973 | if (event != 0x80) { | |
0978e012 | 3974 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 3975 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3976 | acpi_bus_generate_netlink_event( |
3977 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3978 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3979 | event, 0); |
3eea123d HMH |
3980 | return; |
3981 | } | |
3982 | ||
3983 | while (1) { | |
3984 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 3985 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
3986 | return; |
3987 | } | |
3988 | ||
3989 | if (hkey == 0) { | |
3990 | /* queue empty */ | |
3991 | return; | |
3992 | } | |
3993 | ||
3827e7a3 HMH |
3994 | send_acpi_ev = true; |
3995 | ignore_acpi_ev = false; | |
56b6aeb0 | 3996 | |
ff80f137 HMH |
3997 | switch (hkey >> 12) { |
3998 | case 1: | |
3999 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
4000 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
4001 | &ignore_acpi_ev); | |
ff80f137 | 4002 | break; |
a713b4d7 | 4003 | case 2: |
3827e7a3 HMH |
4004 | /* 0x2000-0x2FFF: Wakeup reason */ |
4005 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
4006 | &ignore_acpi_ev); | |
a713b4d7 HMH |
4007 | break; |
4008 | case 3: | |
3827e7a3 | 4009 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
4010 | switch (hkey) { |
4011 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 4012 | hotkey_autosleep_ack = 1; |
0978e012 | 4013 | pr_info("bay ejected\n"); |
50ebec09 | 4014 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 4015 | known_ev = true; |
bf8b29c8 HMH |
4016 | break; |
4017 | case TP_HKEY_EV_OPTDRV_EJ: | |
4018 | /* FIXME: kick libata if SATA link offline */ | |
4019 | known_ev = true; | |
4020 | break; | |
4021 | default: | |
3827e7a3 | 4022 | known_ev = false; |
a713b4d7 HMH |
4023 | } |
4024 | break; | |
4025 | case 4: | |
a50245af HMH |
4026 | /* 0x4000-0x4FFF: dock-related events */ |
4027 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
4028 | &ignore_acpi_ev); | |
a713b4d7 | 4029 | break; |
ff80f137 | 4030 | case 5: |
d1edb2b5 | 4031 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
4032 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
4033 | &ignore_acpi_ev); | |
ff80f137 | 4034 | break; |
106b4e66 | 4035 | case 6: |
2d43f671 HMH |
4036 | /* 0x6000-0x6FFF: thermal alarms/notices and |
4037 | * keyboard events */ | |
4038 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
4039 | &ignore_acpi_ev); |
4040 | break; | |
ff80f137 HMH |
4041 | case 7: |
4042 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
4043 | if (tp_features.hotkey_wlsw && |
4044 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 4045 | tpacpi_send_radiosw_update(); |
3b64b51d | 4046 | send_acpi_ev = 0; |
3827e7a3 | 4047 | known_ev = true; |
6a38abbf | 4048 | break; |
6a38abbf | 4049 | } |
ff80f137 HMH |
4050 | /* fallthrough to default */ |
4051 | default: | |
3827e7a3 | 4052 | known_ev = false; |
3b64b51d | 4053 | } |
3827e7a3 | 4054 | if (!known_ev) { |
0978e012 JP |
4055 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
4056 | pr_notice("please report the conditions when this " | |
4057 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 4058 | } |
ff80f137 | 4059 | |
3eea123d | 4060 | /* netlink events */ |
3e5ce914 | 4061 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
4062 | acpi_bus_generate_netlink_event( |
4063 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4064 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4065 | event, hkey); |
3eea123d | 4066 | } |
56b6aeb0 HMH |
4067 | } |
4068 | } | |
4069 | ||
fd3c3a42 | 4070 | static void hotkey_suspend(void) |
a713b4d7 HMH |
4071 | { |
4072 | /* Do these on suspend, we get the events on early resume! */ | |
4073 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
4074 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
4075 | |
4076 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4077 | if (tp_features.has_adaptive_kbd) { |
4078 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
4079 | "GTRW", "dd", 0)) { | |
4080 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
4081 | } |
4082 | } | |
a713b4d7 HMH |
4083 | } |
4084 | ||
5c29d58f HMH |
4085 | static void hotkey_resume(void) |
4086 | { | |
d64c81c4 HMH |
4087 | tpacpi_disable_brightness_delay(); |
4088 | ||
0d922e3b HMH |
4089 | if (hotkey_status_set(true) < 0 || |
4090 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
0978e012 | 4091 | pr_err("error while attempting to reset the event " |
0d922e3b HMH |
4092 | "firmware interface\n"); |
4093 | ||
733e27c1 | 4094 | tpacpi_send_radiosw_update(); |
6c231bd5 | 4095 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4096 | hotkey_wakeup_reason_notify_change(); |
4097 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4098 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4099 | |
4100 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4101 | if (tp_features.has_adaptive_kbd) { |
4102 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4103 | adaptive_keyboard_prev_mode)) { | |
4104 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4105 | } |
4106 | } | |
5c29d58f HMH |
4107 | } |
4108 | ||
a0416420 | 4109 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4110 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4111 | { |
ae92bd17 | 4112 | int res, status; |
1da177e4 | 4113 | |
d8fd94d9 | 4114 | if (!tp_features.hotkey) { |
887965e6 AD |
4115 | seq_printf(m, "status:\t\tnot supported\n"); |
4116 | return 0; | |
78f81cc4 BD |
4117 | } |
4118 | ||
7646ea88 | 4119 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4120 | return -ERESTARTSYS; |
b2c985e7 HMH |
4121 | res = hotkey_status_get(&status); |
4122 | if (!res) | |
4123 | res = hotkey_mask_get(); | |
40ca9fdf | 4124 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4125 | if (res) |
4126 | return res; | |
1da177e4 | 4127 | |
887965e6 | 4128 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4129 | if (hotkey_all_mask) { |
887965e6 AD |
4130 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4131 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4132 | } else { |
887965e6 AD |
4133 | seq_printf(m, "mask:\t\tnot supported\n"); |
4134 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4135 | } |
4136 | ||
887965e6 | 4137 | return 0; |
1da177e4 LT |
4138 | } |
4139 | ||
406e988b | 4140 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4141 | { |
4142 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4143 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
0978e012 JP |
4144 | pr_fmt("hotkey enable/disable functionality has been " |
4145 | "removed from the driver. " | |
4146 | "Hotkeys are always enabled.\n"))) | |
4147 | pr_err("Please remove the hotkey=enable module " | |
4148 | "parameter, it is deprecated. " | |
4149 | "Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4150 | } |
4151 | ||
78f81cc4 | 4152 | static int hotkey_write(char *buf) |
1da177e4 | 4153 | { |
2586d566 | 4154 | int res; |
ae92bd17 | 4155 | u32 mask; |
1da177e4 | 4156 | char *cmd; |
1da177e4 | 4157 | |
d8fd94d9 | 4158 | if (!tp_features.hotkey) |
1da177e4 LT |
4159 | return -ENODEV; |
4160 | ||
7646ea88 | 4161 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4162 | return -ERESTARTSYS; |
40ca9fdf | 4163 | |
0d922e3b | 4164 | mask = hotkey_user_mask; |
78f81cc4 | 4165 | |
40ca9fdf | 4166 | res = 0; |
1da177e4 LT |
4167 | while ((cmd = next_cmd(&buf))) { |
4168 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 4169 | hotkey_enabledisable_warn(1); |
1da177e4 | 4170 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4171 | hotkey_enabledisable_warn(0); |
2586d566 | 4172 | res = -EPERM; |
1da177e4 | 4173 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4174 | mask = (hotkey_all_mask | hotkey_source_mask) |
4175 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4176 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4177 | /* mask set */ | |
4178 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4179 | /* mask set */ | |
40ca9fdf HMH |
4180 | } else { |
4181 | res = -EINVAL; | |
4182 | goto errexit; | |
4183 | } | |
1da177e4 | 4184 | } |
56e2c200 | 4185 | |
0d922e3b | 4186 | if (!res) { |
56e2c200 HMH |
4187 | tpacpi_disclose_usertask("procfs hotkey", |
4188 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4189 | res = hotkey_user_mask_set(mask); |
4190 | } | |
1da177e4 | 4191 | |
40ca9fdf HMH |
4192 | errexit: |
4193 | mutex_unlock(&hotkey_mutex); | |
4194 | return res; | |
78f81cc4 | 4195 | } |
1da177e4 | 4196 | |
1ba90e3a | 4197 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4198 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4199 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
a3c42a46 | 4200 | {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, |
1ba90e3a TR |
4201 | {"", 0}, |
4202 | }; | |
4203 | ||
8d376cd6 | 4204 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4205 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4206 | .notify = hotkey_notify, |
4207 | .handle = &hkey_handle, | |
4208 | .type = ACPI_DEVICE_NOTIFY, | |
4209 | }; | |
4210 | ||
a5763f22 HMH |
4211 | static struct ibm_struct hotkey_driver_data = { |
4212 | .name = "hotkey", | |
a5763f22 HMH |
4213 | .read = hotkey_read, |
4214 | .write = hotkey_write, | |
4215 | .exit = hotkey_exit, | |
5c29d58f | 4216 | .resume = hotkey_resume, |
a713b4d7 | 4217 | .suspend = hotkey_suspend, |
8d376cd6 | 4218 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4219 | }; |
4220 | ||
56b6aeb0 HMH |
4221 | /************************************************************************* |
4222 | * Bluetooth subdriver | |
4223 | */ | |
1da177e4 | 4224 | |
f74a27d4 HMH |
4225 | enum { |
4226 | /* ACPI GBDC/SBDC bits */ | |
4227 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4228 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4229 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4230 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4231 | }; |
4232 | ||
4233 | enum { | |
4234 | /* ACPI \BLTH commands */ | |
4235 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4236 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4237 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4238 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4239 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4240 | }; |
4241 | ||
bee4cd9b HMH |
4242 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4243 | ||
19d337df | 4244 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4245 | { |
4246 | int status; | |
4247 | ||
a73f3091 HMH |
4248 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4249 | if (dbg_bluetoothemul) | |
4250 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4251 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4252 | #endif |
4253 | ||
07431ec8 HMH |
4254 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4255 | return -EIO; | |
4256 | ||
0e74dc26 | 4257 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4258 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4259 | } |
4260 | ||
19d337df | 4261 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4262 | { |
4263 | int status; | |
4264 | ||
bee4cd9b | 4265 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4266 | "will attempt to %s bluetooth\n", |
4267 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4268 | |
a73f3091 HMH |
4269 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4270 | if (dbg_bluetoothemul) { | |
19d337df | 4271 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4272 | return 0; |
4273 | } | |
4274 | #endif | |
4275 | ||
19d337df | 4276 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4277 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4278 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4279 | else | |
4280 | status = 0; | |
19d337df | 4281 | |
07431ec8 HMH |
4282 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4283 | return -EIO; | |
4284 | ||
4285 | return 0; | |
4286 | } | |
f74a27d4 | 4287 | |
d3a6ade4 HMH |
4288 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4289 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4290 | struct device_attribute *attr, | |
4291 | char *buf) | |
4292 | { | |
19d337df JB |
4293 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4294 | attr, buf); | |
d3a6ade4 HMH |
4295 | } |
4296 | ||
4297 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4298 | struct device_attribute *attr, | |
4299 | const char *buf, size_t count) | |
4300 | { | |
19d337df JB |
4301 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4302 | attr, buf, count); | |
d3a6ade4 HMH |
4303 | } |
4304 | ||
b4dd04ac | 4305 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4306 | |
4307 | /* --------------------------------------------------------------------- */ | |
4308 | ||
4309 | static struct attribute *bluetooth_attributes[] = { | |
4310 | &dev_attr_bluetooth_enable.attr, | |
4311 | NULL | |
4312 | }; | |
4313 | ||
4314 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4315 | .attrs = bluetooth_attributes, |
4316 | }; | |
4317 | ||
19d337df JB |
4318 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4319 | .get_status = bluetooth_get_status, | |
4320 | .set_status = bluetooth_set_status, | |
4321 | }; | |
0e74dc26 | 4322 | |
90d9d3c7 HMH |
4323 | static void bluetooth_shutdown(void) |
4324 | { | |
4325 | /* Order firmware to save current state to NVRAM */ | |
4326 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4327 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4328 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4329 | else |
4330 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4331 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4332 | } |
4333 | ||
07431ec8 HMH |
4334 | static void bluetooth_exit(void) |
4335 | { | |
4336 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4337 | &bluetooth_attr_group); | |
19d337df JB |
4338 | |
4339 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4340 | ||
4341 | bluetooth_shutdown(); | |
07431ec8 HMH |
4342 | } |
4343 | ||
a5763f22 | 4344 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4345 | { |
d3a6ade4 | 4346 | int res; |
d6fdd1e9 HMH |
4347 | int status = 0; |
4348 | ||
bee4cd9b HMH |
4349 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4350 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4351 | |
e0c7dfe7 | 4352 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4353 | |
78f81cc4 BD |
4354 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4355 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4356 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4357 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4358 | ||
bee4cd9b HMH |
4359 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4360 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4361 | str_supported(tp_features.bluetooth), |
4362 | status); | |
4363 | ||
a73f3091 HMH |
4364 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4365 | if (dbg_bluetoothemul) { | |
4366 | tp_features.bluetooth = 1; | |
0978e012 | 4367 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4368 | } else |
4369 | #endif | |
3a872080 HMH |
4370 | if (tp_features.bluetooth && |
4371 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4372 | /* no bluetooth hardware present in system */ | |
4373 | tp_features.bluetooth = 0; | |
bee4cd9b | 4374 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4375 | "bluetooth hardware not installed\n"); |
4376 | } | |
4377 | ||
0e74dc26 HMH |
4378 | if (!tp_features.bluetooth) |
4379 | return 1; | |
4380 | ||
0e74dc26 | 4381 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4382 | &bluetooth_tprfk_ops, |
0e74dc26 | 4383 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4384 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4385 | true); |
4386 | if (res) | |
4387 | return res; | |
4388 | ||
4389 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4390 | &bluetooth_attr_group); | |
0e74dc26 | 4391 | if (res) { |
19d337df | 4392 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4393 | return res; |
d6fdd1e9 | 4394 | } |
fe08bc4b | 4395 | |
0e74dc26 | 4396 | return 0; |
1da177e4 LT |
4397 | } |
4398 | ||
d3a6ade4 | 4399 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4400 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4401 | { |
887965e6 | 4402 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4403 | } |
4404 | ||
78f81cc4 | 4405 | static int bluetooth_write(char *buf) |
1da177e4 | 4406 | { |
19d337df | 4407 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4408 | } |
4409 | ||
a5763f22 HMH |
4410 | static struct ibm_struct bluetooth_driver_data = { |
4411 | .name = "bluetooth", | |
4412 | .read = bluetooth_read, | |
4413 | .write = bluetooth_write, | |
d3a6ade4 | 4414 | .exit = bluetooth_exit, |
90d9d3c7 | 4415 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4416 | }; |
4417 | ||
56b6aeb0 HMH |
4418 | /************************************************************************* |
4419 | * Wan subdriver | |
4420 | */ | |
4421 | ||
f74a27d4 HMH |
4422 | enum { |
4423 | /* ACPI GWAN/SWAN bits */ | |
4424 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4425 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4426 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4427 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4428 | }; |
4429 | ||
bee4cd9b HMH |
4430 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4431 | ||
19d337df | 4432 | static int wan_get_status(void) |
07431ec8 HMH |
4433 | { |
4434 | int status; | |
4435 | ||
a73f3091 HMH |
4436 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4437 | if (dbg_wwanemul) | |
4438 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4439 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4440 | #endif |
4441 | ||
07431ec8 HMH |
4442 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4443 | return -EIO; | |
4444 | ||
0e74dc26 | 4445 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4446 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4447 | } |
4448 | ||
19d337df | 4449 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4450 | { |
4451 | int status; | |
4452 | ||
bee4cd9b | 4453 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4454 | "will attempt to %s wwan\n", |
4455 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4456 | |
a73f3091 HMH |
4457 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4458 | if (dbg_wwanemul) { | |
19d337df | 4459 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4460 | return 0; |
4461 | } | |
4462 | #endif | |
4463 | ||
19d337df | 4464 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4465 | status = TP_ACPI_WANCARD_RADIOSSW |
4466 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4467 | else | |
4468 | status = 0; | |
19d337df | 4469 | |
07431ec8 HMH |
4470 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4471 | return -EIO; | |
4472 | ||
4473 | return 0; | |
4474 | } | |
f74a27d4 | 4475 | |
d3a6ade4 HMH |
4476 | /* sysfs wan enable ---------------------------------------------------- */ |
4477 | static ssize_t wan_enable_show(struct device *dev, | |
4478 | struct device_attribute *attr, | |
4479 | char *buf) | |
4480 | { | |
19d337df JB |
4481 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4482 | attr, buf); | |
d3a6ade4 HMH |
4483 | } |
4484 | ||
4485 | static ssize_t wan_enable_store(struct device *dev, | |
4486 | struct device_attribute *attr, | |
4487 | const char *buf, size_t count) | |
4488 | { | |
19d337df JB |
4489 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4490 | attr, buf, count); | |
d3a6ade4 HMH |
4491 | } |
4492 | ||
5fb73bc2 BM |
4493 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4494 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4495 | |
4496 | /* --------------------------------------------------------------------- */ | |
4497 | ||
4498 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4499 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4500 | NULL |
4501 | }; | |
4502 | ||
4503 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4504 | .attrs = wan_attributes, |
4505 | }; | |
4506 | ||
19d337df JB |
4507 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4508 | .get_status = wan_get_status, | |
4509 | .set_status = wan_set_status, | |
4510 | }; | |
0e74dc26 | 4511 | |
90d9d3c7 HMH |
4512 | static void wan_shutdown(void) |
4513 | { | |
4514 | /* Order firmware to save current state to NVRAM */ | |
4515 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4516 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4517 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4518 | else |
4519 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4520 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4521 | } |
4522 | ||
07431ec8 HMH |
4523 | static void wan_exit(void) |
4524 | { | |
4525 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4526 | &wan_attr_group); | |
19d337df JB |
4527 | |
4528 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4529 | ||
4530 | wan_shutdown(); | |
07431ec8 HMH |
4531 | } |
4532 | ||
a5763f22 | 4533 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4534 | { |
d3a6ade4 | 4535 | int res; |
d6fdd1e9 HMH |
4536 | int status = 0; |
4537 | ||
bee4cd9b HMH |
4538 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4539 | "initializing wan subdriver\n"); | |
fe08bc4b | 4540 | |
e0c7dfe7 | 4541 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4542 | |
d8fd94d9 | 4543 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4544 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4545 | ||
bee4cd9b HMH |
4546 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4547 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4548 | str_supported(tp_features.wan), |
4549 | status); | |
4550 | ||
a73f3091 HMH |
4551 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4552 | if (dbg_wwanemul) { | |
4553 | tp_features.wan = 1; | |
0978e012 | 4554 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4555 | } else |
4556 | #endif | |
3a872080 HMH |
4557 | if (tp_features.wan && |
4558 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4559 | /* no wan hardware present in system */ | |
4560 | tp_features.wan = 0; | |
bee4cd9b | 4561 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4562 | "wan hardware not installed\n"); |
4563 | } | |
4564 | ||
0e74dc26 HMH |
4565 | if (!tp_features.wan) |
4566 | return 1; | |
4567 | ||
0e74dc26 | 4568 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4569 | &wan_tprfk_ops, |
0e74dc26 | 4570 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4571 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4572 | true); |
4573 | if (res) | |
4574 | return res; | |
4575 | ||
4576 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4577 | &wan_attr_group); | |
4578 | ||
0e74dc26 | 4579 | if (res) { |
19d337df | 4580 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4581 | return res; |
d6fdd1e9 | 4582 | } |
fe08bc4b | 4583 | |
0e74dc26 | 4584 | return 0; |
42adb53c JF |
4585 | } |
4586 | ||
d3a6ade4 | 4587 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4588 | static int wan_read(struct seq_file *m) |
42adb53c | 4589 | { |
887965e6 | 4590 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4591 | } |
4592 | ||
4593 | static int wan_write(char *buf) | |
4594 | { | |
19d337df | 4595 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4596 | } |
4597 | ||
a5763f22 HMH |
4598 | static struct ibm_struct wan_driver_data = { |
4599 | .name = "wan", | |
4600 | .read = wan_read, | |
4601 | .write = wan_write, | |
d3a6ade4 | 4602 | .exit = wan_exit, |
90d9d3c7 | 4603 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4604 | }; |
4605 | ||
0045c0aa HMH |
4606 | /************************************************************************* |
4607 | * UWB subdriver | |
4608 | */ | |
4609 | ||
4610 | enum { | |
4611 | /* ACPI GUWB/SUWB bits */ | |
4612 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4613 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4614 | }; | |
4615 | ||
bee4cd9b HMH |
4616 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4617 | ||
19d337df | 4618 | static int uwb_get_status(void) |
0045c0aa HMH |
4619 | { |
4620 | int status; | |
4621 | ||
0045c0aa HMH |
4622 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4623 | if (dbg_uwbemul) | |
4624 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4625 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4626 | #endif |
4627 | ||
4628 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4629 | return -EIO; | |
4630 | ||
4631 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4632 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4633 | } |
4634 | ||
19d337df | 4635 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4636 | { |
4637 | int status; | |
4638 | ||
bee4cd9b | 4639 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4640 | "will attempt to %s UWB\n", |
4641 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4642 | |
0045c0aa HMH |
4643 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4644 | if (dbg_uwbemul) { | |
19d337df | 4645 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4646 | return 0; |
4647 | } | |
4648 | #endif | |
4649 | ||
19d337df JB |
4650 | if (state == TPACPI_RFK_RADIO_ON) |
4651 | status = TP_ACPI_UWB_RADIOSSW; | |
4652 | else | |
4653 | status = 0; | |
4654 | ||
0045c0aa HMH |
4655 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4656 | return -EIO; | |
4657 | ||
0045c0aa HMH |
4658 | return 0; |
4659 | } | |
4660 | ||
4661 | /* --------------------------------------------------------------------- */ | |
4662 | ||
19d337df JB |
4663 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4664 | .get_status = uwb_get_status, | |
4665 | .set_status = uwb_set_status, | |
4666 | }; | |
0045c0aa HMH |
4667 | |
4668 | static void uwb_exit(void) | |
4669 | { | |
19d337df | 4670 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4671 | } |
4672 | ||
4673 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4674 | { | |
4675 | int res; | |
4676 | int status = 0; | |
4677 | ||
bee4cd9b HMH |
4678 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4679 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4680 | |
4681 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4682 | ||
4683 | tp_features.uwb = hkey_handle && | |
4684 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4685 | ||
bee4cd9b HMH |
4686 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4687 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4688 | str_supported(tp_features.uwb), |
4689 | status); | |
4690 | ||
4691 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4692 | if (dbg_uwbemul) { | |
4693 | tp_features.uwb = 1; | |
0978e012 | 4694 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4695 | } else |
4696 | #endif | |
4697 | if (tp_features.uwb && | |
4698 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4699 | /* no uwb hardware present in system */ | |
4700 | tp_features.uwb = 0; | |
4701 | dbg_printk(TPACPI_DBG_INIT, | |
4702 | "uwb hardware not installed\n"); | |
4703 | } | |
4704 | ||
4705 | if (!tp_features.uwb) | |
4706 | return 1; | |
4707 | ||
4708 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4709 | &uwb_tprfk_ops, |
0045c0aa | 4710 | RFKILL_TYPE_UWB, |
bee4cd9b | 4711 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4712 | false); |
0045c0aa HMH |
4713 | return res; |
4714 | } | |
4715 | ||
4716 | static struct ibm_struct uwb_driver_data = { | |
4717 | .name = "uwb", | |
4718 | .exit = uwb_exit, | |
4719 | .flags.experimental = 1, | |
4720 | }; | |
4721 | ||
56b6aeb0 HMH |
4722 | /************************************************************************* |
4723 | * Video subdriver | |
4724 | */ | |
4725 | ||
d7c1d17d HMH |
4726 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4727 | ||
f74a27d4 HMH |
4728 | enum video_access_mode { |
4729 | TPACPI_VIDEO_NONE = 0, | |
4730 | TPACPI_VIDEO_570, /* 570 */ | |
4731 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4732 | TPACPI_VIDEO_NEW, /* all others */ | |
4733 | }; | |
4734 | ||
4735 | enum { /* video status flags, based on VIDEO_570 */ | |
4736 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4737 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4738 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4739 | }; | |
4740 | ||
4741 | enum { /* TPACPI_VIDEO_570 constants */ | |
4742 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4743 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4744 | * video_status_flags */ | |
4745 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4746 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4747 | }; | |
4748 | ||
9a8e1738 HMH |
4749 | static enum video_access_mode video_supported; |
4750 | static int video_orig_autosw; | |
78f81cc4 | 4751 | |
f74a27d4 HMH |
4752 | static int video_autosw_get(void); |
4753 | static int video_autosw_set(int enable); | |
4754 | ||
112a6ee0 JP |
4755 | TPACPI_HANDLE(vid, root, |
4756 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4757 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4758 | "\\_SB.PCI0.VID0", /* 770e */ | |
4759 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4760 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4761 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4762 | ); /* R30, R31 */ | |
4763 | ||
e0c7dfe7 | 4764 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4765 | |
a5763f22 | 4766 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4767 | { |
78f81cc4 BD |
4768 | int ivga; |
4769 | ||
fe08bc4b HMH |
4770 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4771 | ||
e0c7dfe7 | 4772 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4773 | if (tpacpi_is_ibm()) |
4774 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4775 | |
78f81cc4 BD |
4776 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4777 | /* G41, assume IVGA doesn't change */ | |
4778 | vid_handle = vid2_handle; | |
4779 | ||
4780 | if (!vid_handle) | |
4781 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4782 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4783 | else if (tpacpi_is_ibm() && |
4784 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4785 | /* 570 */ |
efa27145 | 4786 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4787 | else if (tpacpi_is_ibm() && |
4788 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4789 | /* 600e/x, 770e, 770x */ |
efa27145 | 4790 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4791 | else |
4792 | /* all others */ | |
efa27145 | 4793 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4794 | |
fe08bc4b HMH |
4795 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4796 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4797 | video_supported); | |
4798 | ||
72a979f0 | 4799 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
4800 | } |
4801 | ||
56b6aeb0 HMH |
4802 | static void video_exit(void) |
4803 | { | |
83f34724 HMH |
4804 | dbg_printk(TPACPI_DBG_EXIT, |
4805 | "restoring original video autoswitch mode\n"); | |
4806 | if (video_autosw_set(video_orig_autosw)) | |
0978e012 | 4807 | pr_err("error while trying to restore original " |
83f34724 | 4808 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4809 | } |
4810 | ||
83f34724 | 4811 | static int video_outputsw_get(void) |
1da177e4 LT |
4812 | { |
4813 | int status = 0; | |
4814 | int i; | |
4815 | ||
83f34724 HMH |
4816 | switch (video_supported) { |
4817 | case TPACPI_VIDEO_570: | |
4818 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4819 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4820 | return -EIO; | |
4821 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4822 | break; | |
4823 | case TPACPI_VIDEO_770: | |
4824 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4825 | return -EIO; | |
4826 | if (i) | |
4827 | status |= TP_ACPI_VIDEO_S_LCD; | |
4828 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4829 | return -EIO; | |
4830 | if (i) | |
4831 | status |= TP_ACPI_VIDEO_S_CRT; | |
4832 | break; | |
4833 | case TPACPI_VIDEO_NEW: | |
4834 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4835 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4836 | return -EIO; | |
4837 | if (i) | |
4838 | status |= TP_ACPI_VIDEO_S_CRT; | |
4839 | ||
4840 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4841 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4842 | return -EIO; | |
4843 | if (i) | |
4844 | status |= TP_ACPI_VIDEO_S_LCD; | |
4845 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4846 | return -EIO; | |
4847 | if (i) | |
4848 | status |= TP_ACPI_VIDEO_S_DVI; | |
4849 | break; | |
4850 | default: | |
4851 | return -ENOSYS; | |
78f81cc4 BD |
4852 | } |
4853 | ||
4854 | return status; | |
4855 | } | |
1da177e4 | 4856 | |
83f34724 | 4857 | static int video_outputsw_set(int status) |
78f81cc4 | 4858 | { |
83f34724 HMH |
4859 | int autosw; |
4860 | int res = 0; | |
4861 | ||
4862 | switch (video_supported) { | |
4863 | case TPACPI_VIDEO_570: | |
4864 | res = acpi_evalf(NULL, NULL, | |
4865 | "\\_SB.PHS2", "vdd", | |
4866 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4867 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4868 | break; | |
4869 | case TPACPI_VIDEO_770: | |
4870 | autosw = video_autosw_get(); | |
4871 | if (autosw < 0) | |
4872 | return autosw; | |
1da177e4 | 4873 | |
83f34724 HMH |
4874 | res = video_autosw_set(1); |
4875 | if (res) | |
4876 | return res; | |
4877 | res = acpi_evalf(vid_handle, NULL, | |
4878 | "ASWT", "vdd", status * 0x100, 0); | |
4879 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4880 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
4881 | return -EIO; |
4882 | } | |
4883 | break; | |
4884 | case TPACPI_VIDEO_NEW: | |
4885 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4886 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4887 | break; |
4888 | default: | |
4889 | return -ENOSYS; | |
4890 | } | |
1da177e4 | 4891 | |
72a979f0 | 4892 | return (res) ? 0 : -EIO; |
1da177e4 LT |
4893 | } |
4894 | ||
83f34724 | 4895 | static int video_autosw_get(void) |
78f81cc4 | 4896 | { |
83f34724 | 4897 | int autosw = 0; |
78f81cc4 | 4898 | |
83f34724 HMH |
4899 | switch (video_supported) { |
4900 | case TPACPI_VIDEO_570: | |
4901 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4902 | return -EIO; | |
4903 | break; | |
4904 | case TPACPI_VIDEO_770: | |
4905 | case TPACPI_VIDEO_NEW: | |
4906 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4907 | return -EIO; | |
4908 | break; | |
4909 | default: | |
4910 | return -ENOSYS; | |
4911 | } | |
78f81cc4 | 4912 | |
83f34724 | 4913 | return autosw & 1; |
78f81cc4 BD |
4914 | } |
4915 | ||
83f34724 | 4916 | static int video_autosw_set(int enable) |
78f81cc4 | 4917 | { |
72a979f0 | 4918 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
4919 | return -EIO; |
4920 | return 0; | |
78f81cc4 BD |
4921 | } |
4922 | ||
83f34724 | 4923 | static int video_outputsw_cycle(void) |
78f81cc4 | 4924 | { |
83f34724 HMH |
4925 | int autosw = video_autosw_get(); |
4926 | int res; | |
78f81cc4 | 4927 | |
83f34724 HMH |
4928 | if (autosw < 0) |
4929 | return autosw; | |
78f81cc4 | 4930 | |
83f34724 HMH |
4931 | switch (video_supported) { |
4932 | case TPACPI_VIDEO_570: | |
4933 | res = video_autosw_set(1); | |
4934 | if (res) | |
4935 | return res; | |
4936 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4937 | break; | |
4938 | case TPACPI_VIDEO_770: | |
4939 | case TPACPI_VIDEO_NEW: | |
4940 | res = video_autosw_set(1); | |
4941 | if (res) | |
4942 | return res; | |
4943 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4944 | break; | |
4945 | default: | |
4946 | return -ENOSYS; | |
4947 | } | |
4948 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4949 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 4950 | return -EIO; |
78f81cc4 BD |
4951 | } |
4952 | ||
72a979f0 | 4953 | return (res) ? 0 : -EIO; |
83f34724 HMH |
4954 | } |
4955 | ||
4956 | static int video_expand_toggle(void) | |
4957 | { | |
4958 | switch (video_supported) { | |
4959 | case TPACPI_VIDEO_570: | |
72a979f0 | 4960 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
4961 | 0 : -EIO; |
4962 | case TPACPI_VIDEO_770: | |
72a979f0 | 4963 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
4964 | 0 : -EIO; |
4965 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 4966 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
4967 | 0 : -EIO; |
4968 | default: | |
4969 | return -ENOSYS; | |
4970 | } | |
4971 | /* not reached */ | |
78f81cc4 BD |
4972 | } |
4973 | ||
887965e6 | 4974 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4975 | { |
83f34724 | 4976 | int status, autosw; |
56b6aeb0 | 4977 | |
83f34724 | 4978 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4979 | seq_printf(m, "status:\t\tnot supported\n"); |
4980 | return 0; | |
56b6aeb0 HMH |
4981 | } |
4982 | ||
b525c06c HMH |
4983 | /* Even reads can crash X.org, so... */ |
4984 | if (!capable(CAP_SYS_ADMIN)) | |
4985 | return -EPERM; | |
4986 | ||
83f34724 HMH |
4987 | status = video_outputsw_get(); |
4988 | if (status < 0) | |
4989 | return status; | |
4990 | ||
4991 | autosw = video_autosw_get(); | |
4992 | if (autosw < 0) | |
4993 | return autosw; | |
4994 | ||
887965e6 AD |
4995 | seq_printf(m, "status:\t\tsupported\n"); |
4996 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4997 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4998 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4999 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
5000 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
5001 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
5002 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 5003 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5004 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
5005 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
5006 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 5007 | |
887965e6 | 5008 | return 0; |
56b6aeb0 HMH |
5009 | } |
5010 | ||
78f81cc4 | 5011 | static int video_write(char *buf) |
1da177e4 LT |
5012 | { |
5013 | char *cmd; | |
5014 | int enable, disable, status; | |
83f34724 | 5015 | int res; |
1da177e4 | 5016 | |
83f34724 | 5017 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
5018 | return -ENODEV; |
5019 | ||
b525c06c HMH |
5020 | /* Even reads can crash X.org, let alone writes... */ |
5021 | if (!capable(CAP_SYS_ADMIN)) | |
5022 | return -EPERM; | |
5023 | ||
83f34724 HMH |
5024 | enable = 0; |
5025 | disable = 0; | |
1da177e4 LT |
5026 | |
5027 | while ((cmd = next_cmd(&buf))) { | |
5028 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 5029 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5030 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 5031 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5032 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 5033 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 5034 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 5035 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 5036 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5037 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 5038 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 5039 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5040 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 5041 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 5042 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
5043 | res = video_autosw_set(1); |
5044 | if (res) | |
5045 | return res; | |
1da177e4 | 5046 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
5047 | res = video_autosw_set(0); |
5048 | if (res) | |
5049 | return res; | |
1da177e4 | 5050 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
5051 | res = video_outputsw_cycle(); |
5052 | if (res) | |
5053 | return res; | |
1da177e4 | 5054 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
5055 | res = video_expand_toggle(); |
5056 | if (res) | |
5057 | return res; | |
1da177e4 LT |
5058 | } else |
5059 | return -EINVAL; | |
5060 | } | |
5061 | ||
5062 | if (enable || disable) { | |
83f34724 HMH |
5063 | status = video_outputsw_get(); |
5064 | if (status < 0) | |
5065 | return status; | |
5066 | res = video_outputsw_set((status & ~disable) | enable); | |
5067 | if (res) | |
5068 | return res; | |
1da177e4 LT |
5069 | } |
5070 | ||
5071 | return 0; | |
5072 | } | |
5073 | ||
a5763f22 HMH |
5074 | static struct ibm_struct video_driver_data = { |
5075 | .name = "video", | |
5076 | .read = video_read, | |
5077 | .write = video_write, | |
5078 | .exit = video_exit, | |
5079 | }; | |
5080 | ||
d7c1d17d HMH |
5081 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
5082 | ||
bb28f3d5 PR |
5083 | /************************************************************************* |
5084 | * Keyboard backlight subdriver | |
5085 | */ | |
5086 | ||
5087 | static int kbdlight_set_level(int level) | |
5088 | { | |
5089 | if (!hkey_handle) | |
5090 | return -ENXIO; | |
5091 | ||
5092 | if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) | |
5093 | return -EIO; | |
5094 | ||
5095 | return 0; | |
5096 | } | |
5097 | ||
afcedebc MTT |
5098 | static int kbdlight_set_level_and_update(int level); |
5099 | ||
bb28f3d5 PR |
5100 | static int kbdlight_get_level(void) |
5101 | { | |
5102 | int status = 0; | |
5103 | ||
5104 | if (!hkey_handle) | |
5105 | return -ENXIO; | |
5106 | ||
5107 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) | |
5108 | return -EIO; | |
5109 | ||
5110 | if (status < 0) | |
5111 | return status; | |
5112 | ||
5113 | return status & 0x3; | |
5114 | } | |
5115 | ||
5116 | static bool kbdlight_is_supported(void) | |
5117 | { | |
5118 | int status = 0; | |
5119 | ||
5120 | if (!hkey_handle) | |
5121 | return false; | |
5122 | ||
5123 | if (!acpi_has_method(hkey_handle, "MLCG")) { | |
5124 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); | |
5125 | return false; | |
5126 | } | |
5127 | ||
5128 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { | |
5129 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); | |
5130 | return false; | |
5131 | } | |
5132 | ||
5133 | if (status < 0) { | |
5134 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); | |
5135 | return false; | |
5136 | } | |
5137 | ||
5138 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); | |
5139 | /* | |
5140 | * Guessed test for keyboard backlight: | |
5141 | * | |
5142 | * Machines with backlight keyboard return: | |
5143 | * b010100000010000000XX - ThinkPad X1 Carbon 3rd | |
5144 | * b110100010010000000XX - ThinkPad x230 | |
5145 | * b010100000010000000XX - ThinkPad x240 | |
5146 | * b010100000010000000XX - ThinkPad W541 | |
5147 | * (XX is current backlight level) | |
5148 | * | |
5149 | * Machines without backlight keyboard return: | |
5150 | * b10100001000000000000 - ThinkPad x230 | |
5151 | * b10110001000000000000 - ThinkPad E430 | |
5152 | * b00000000000000000000 - ThinkPad E450 | |
5153 | * | |
5154 | * Candidate BITs for detection test (XOR): | |
5155 | * b01000000001000000000 | |
5156 | * ^ | |
5157 | */ | |
5158 | return status & BIT(9); | |
5159 | } | |
5160 | ||
5161 | static void kbdlight_set_worker(struct work_struct *work) | |
5162 | { | |
5163 | struct tpacpi_led_classdev *data = | |
5164 | container_of(work, struct tpacpi_led_classdev, work); | |
5165 | ||
5166 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
afcedebc | 5167 | kbdlight_set_level_and_update(data->new_state); |
bb28f3d5 PR |
5168 | } |
5169 | ||
5170 | static void kbdlight_sysfs_set(struct led_classdev *led_cdev, | |
5171 | enum led_brightness brightness) | |
5172 | { | |
5173 | struct tpacpi_led_classdev *data = | |
5174 | container_of(led_cdev, | |
5175 | struct tpacpi_led_classdev, | |
5176 | led_classdev); | |
5177 | data->new_state = brightness; | |
5178 | queue_work(tpacpi_wq, &data->work); | |
5179 | } | |
5180 | ||
5181 | static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) | |
5182 | { | |
5183 | int level; | |
5184 | ||
5185 | level = kbdlight_get_level(); | |
5186 | if (level < 0) | |
5187 | return 0; | |
5188 | ||
5189 | return level; | |
5190 | } | |
5191 | ||
5192 | static struct tpacpi_led_classdev tpacpi_led_kbdlight = { | |
5193 | .led_classdev = { | |
5194 | .name = "tpacpi::kbd_backlight", | |
5195 | .max_brightness = 2, | |
5196 | .brightness_set = &kbdlight_sysfs_set, | |
5197 | .brightness_get = &kbdlight_sysfs_get, | |
bb28f3d5 PR |
5198 | } |
5199 | }; | |
5200 | ||
5201 | static int __init kbdlight_init(struct ibm_init_struct *iibm) | |
5202 | { | |
5203 | int rc; | |
5204 | ||
5205 | vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); | |
5206 | ||
5207 | TPACPI_ACPIHANDLE_INIT(hkey); | |
5208 | INIT_WORK(&tpacpi_led_kbdlight.work, kbdlight_set_worker); | |
5209 | ||
5210 | if (!kbdlight_is_supported()) { | |
5211 | tp_features.kbdlight = 0; | |
5212 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); | |
5213 | return 1; | |
5214 | } | |
5215 | ||
5216 | tp_features.kbdlight = 1; | |
5217 | ||
5218 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5219 | &tpacpi_led_kbdlight.led_classdev); | |
5220 | if (rc < 0) { | |
5221 | tp_features.kbdlight = 0; | |
5222 | return rc; | |
5223 | } | |
5224 | ||
5225 | return 0; | |
5226 | } | |
5227 | ||
5228 | static void kbdlight_exit(void) | |
5229 | { | |
5230 | if (tp_features.kbdlight) | |
5231 | led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); | |
5232 | flush_workqueue(tpacpi_wq); | |
5233 | } | |
5234 | ||
afcedebc MTT |
5235 | static int kbdlight_set_level_and_update(int level) |
5236 | { | |
5237 | int ret; | |
5238 | struct led_classdev *led_cdev; | |
5239 | ||
5240 | ret = kbdlight_set_level(level); | |
5241 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5242 | ||
5243 | if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) | |
5244 | led_cdev->brightness = level; | |
5245 | ||
5246 | return ret; | |
5247 | } | |
5248 | ||
bb28f3d5 PR |
5249 | static int kbdlight_read(struct seq_file *m) |
5250 | { | |
5251 | int level; | |
5252 | ||
5253 | if (!tp_features.kbdlight) { | |
5254 | seq_printf(m, "status:\t\tnot supported\n"); | |
5255 | } else { | |
5256 | level = kbdlight_get_level(); | |
5257 | if (level < 0) | |
5258 | seq_printf(m, "status:\t\terror %d\n", level); | |
5259 | else | |
5260 | seq_printf(m, "status:\t\t%d\n", level); | |
5261 | seq_printf(m, "commands:\t0, 1, 2\n"); | |
5262 | } | |
5263 | ||
5264 | return 0; | |
5265 | } | |
5266 | ||
5267 | static int kbdlight_write(char *buf) | |
5268 | { | |
5269 | char *cmd; | |
5270 | int level = -1; | |
5271 | ||
5272 | if (!tp_features.kbdlight) | |
5273 | return -ENODEV; | |
5274 | ||
5275 | while ((cmd = next_cmd(&buf))) { | |
5276 | if (strlencmp(cmd, "0") == 0) | |
5277 | level = 0; | |
5278 | else if (strlencmp(cmd, "1") == 0) | |
5279 | level = 1; | |
5280 | else if (strlencmp(cmd, "2") == 0) | |
5281 | level = 2; | |
5282 | else | |
5283 | return -EINVAL; | |
5284 | } | |
5285 | ||
5286 | if (level == -1) | |
5287 | return -EINVAL; | |
5288 | ||
afcedebc MTT |
5289 | return kbdlight_set_level_and_update(level); |
5290 | } | |
5291 | ||
5292 | static void kbdlight_suspend(void) | |
5293 | { | |
5294 | struct led_classdev *led_cdev; | |
5295 | ||
5296 | if (!tp_features.kbdlight) | |
5297 | return; | |
5298 | ||
5299 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5300 | led_update_brightness(led_cdev); | |
5301 | led_classdev_suspend(led_cdev); | |
5302 | } | |
5303 | ||
5304 | static void kbdlight_resume(void) | |
5305 | { | |
5306 | if (!tp_features.kbdlight) | |
5307 | return; | |
5308 | ||
5309 | led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5310 | } |
5311 | ||
5312 | static struct ibm_struct kbdlight_driver_data = { | |
5313 | .name = "kbdlight", | |
5314 | .read = kbdlight_read, | |
5315 | .write = kbdlight_write, | |
afcedebc MTT |
5316 | .suspend = kbdlight_suspend, |
5317 | .resume = kbdlight_resume, | |
bb28f3d5 PR |
5318 | .exit = kbdlight_exit, |
5319 | }; | |
5320 | ||
56b6aeb0 HMH |
5321 | /************************************************************************* |
5322 | * Light (thinklight) subdriver | |
5323 | */ | |
1da177e4 | 5324 | |
e0c7dfe7 HMH |
5325 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
5326 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 5327 | |
4fa6811b HMH |
5328 | static int light_get_status(void) |
5329 | { | |
5330 | int status = 0; | |
5331 | ||
5332 | if (tp_features.light_status) { | |
5333 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5334 | return -EIO; | |
5335 | return (!!status); | |
5336 | } | |
5337 | ||
5338 | return -ENXIO; | |
5339 | } | |
5340 | ||
5341 | static int light_set_status(int status) | |
5342 | { | |
5343 | int rc; | |
5344 | ||
5345 | if (tp_features.light) { | |
5346 | if (cmos_handle) { | |
5347 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5348 | (status) ? |
4fa6811b HMH |
5349 | TP_CMOS_THINKLIGHT_ON : |
5350 | TP_CMOS_THINKLIGHT_OFF); | |
5351 | } else { | |
5352 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5353 | (status) ? 1 : 0); |
4fa6811b | 5354 | } |
72a979f0 | 5355 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5356 | } |
5357 | ||
5358 | return -ENXIO; | |
5359 | } | |
5360 | ||
e306501d HMH |
5361 | static void light_set_status_worker(struct work_struct *work) |
5362 | { | |
5363 | struct tpacpi_led_classdev *data = | |
5364 | container_of(work, struct tpacpi_led_classdev, work); | |
5365 | ||
5366 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5367 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
5368 | } |
5369 | ||
5370 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
5371 | enum led_brightness brightness) | |
5372 | { | |
5373 | struct tpacpi_led_classdev *data = | |
5374 | container_of(led_cdev, | |
5375 | struct tpacpi_led_classdev, | |
5376 | led_classdev); | |
75bd3bf2 HMH |
5377 | data->new_state = (brightness != LED_OFF) ? |
5378 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 5379 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
5380 | } |
5381 | ||
5382 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5383 | { | |
72a979f0 | 5384 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5385 | } |
5386 | ||
5387 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5388 | .led_classdev = { | |
5389 | .name = "tpacpi::thinklight", | |
5390 | .brightness_set = &light_sysfs_set, | |
5391 | .brightness_get = &light_sysfs_get, | |
5392 | } | |
5393 | }; | |
5394 | ||
a5763f22 | 5395 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5396 | { |
9c0a76e1 | 5397 | int rc; |
e306501d | 5398 | |
fe08bc4b HMH |
5399 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5400 | ||
e28393c0 HMH |
5401 | if (tpacpi_is_ibm()) { |
5402 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5403 | TPACPI_ACPIHANDLE_INIT(lght); | |
5404 | } | |
e0c7dfe7 | 5405 | TPACPI_ACPIHANDLE_INIT(cmos); |
e306501d | 5406 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 5407 | |
78f81cc4 | 5408 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5409 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5410 | |
d8fd94d9 | 5411 | if (tp_features.light) |
78f81cc4 BD |
5412 | /* light status not supported on |
5413 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5414 | tp_features.light_status = |
5415 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5416 | |
9c0a76e1 HMH |
5417 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5418 | str_supported(tp_features.light), | |
5419 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5420 | |
9c0a76e1 HMH |
5421 | if (!tp_features.light) |
5422 | return 1; | |
5423 | ||
5424 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5425 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5426 | |
5427 | if (rc < 0) { | |
5428 | tp_features.light = 0; | |
5429 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5430 | } else { |
5431 | rc = 0; | |
e306501d | 5432 | } |
9c0a76e1 | 5433 | |
e306501d HMH |
5434 | return rc; |
5435 | } | |
5436 | ||
5437 | static void light_exit(void) | |
5438 | { | |
5439 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
6d394e19 | 5440 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
5441 | } |
5442 | ||
887965e6 | 5443 | static int light_read(struct seq_file *m) |
1da177e4 | 5444 | { |
4fa6811b | 5445 | int status; |
1da177e4 | 5446 | |
d8fd94d9 | 5447 | if (!tp_features.light) { |
887965e6 | 5448 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5449 | } else if (!tp_features.light_status) { |
887965e6 AD |
5450 | seq_printf(m, "status:\t\tunknown\n"); |
5451 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5452 | } else { |
4fa6811b HMH |
5453 | status = light_get_status(); |
5454 | if (status < 0) | |
5455 | return status; | |
887965e6 AD |
5456 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5457 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5458 | } |
1da177e4 | 5459 | |
887965e6 | 5460 | return 0; |
1da177e4 LT |
5461 | } |
5462 | ||
78f81cc4 | 5463 | static int light_write(char *buf) |
1da177e4 | 5464 | { |
1da177e4 | 5465 | char *cmd; |
4fa6811b | 5466 | int newstatus = 0; |
78f81cc4 | 5467 | |
d8fd94d9 | 5468 | if (!tp_features.light) |
78f81cc4 BD |
5469 | return -ENODEV; |
5470 | ||
1da177e4 LT |
5471 | while ((cmd = next_cmd(&buf))) { |
5472 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5473 | newstatus = 1; |
1da177e4 | 5474 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5475 | newstatus = 0; |
1da177e4 LT |
5476 | } else |
5477 | return -EINVAL; | |
1da177e4 LT |
5478 | } |
5479 | ||
4fa6811b | 5480 | return light_set_status(newstatus); |
1da177e4 LT |
5481 | } |
5482 | ||
a5763f22 HMH |
5483 | static struct ibm_struct light_driver_data = { |
5484 | .name = "light", | |
5485 | .read = light_read, | |
5486 | .write = light_write, | |
e306501d | 5487 | .exit = light_exit, |
a5763f22 HMH |
5488 | }; |
5489 | ||
56b6aeb0 HMH |
5490 | /************************************************************************* |
5491 | * CMOS subdriver | |
5492 | */ | |
5493 | ||
b616004c HMH |
5494 | /* sysfs cmos_command -------------------------------------------------- */ |
5495 | static ssize_t cmos_command_store(struct device *dev, | |
5496 | struct device_attribute *attr, | |
5497 | const char *buf, size_t count) | |
5498 | { | |
5499 | unsigned long cmos_cmd; | |
5500 | int res; | |
5501 | ||
5502 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5503 | return -EINVAL; | |
5504 | ||
5505 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5506 | return (res) ? res : count; |
b616004c HMH |
5507 | } |
5508 | ||
b4dd04ac | 5509 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5510 | |
5511 | /* --------------------------------------------------------------------- */ | |
5512 | ||
a5763f22 | 5513 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5514 | { |
b616004c HMH |
5515 | int res; |
5516 | ||
fe08bc4b HMH |
5517 | vdbg_printk(TPACPI_DBG_INIT, |
5518 | "initializing cmos commands subdriver\n"); | |
5519 | ||
e0c7dfe7 | 5520 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5521 | |
fe08bc4b HMH |
5522 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5523 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5524 | |
5525 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5526 | if (res) | |
5527 | return res; | |
5528 | ||
72a979f0 | 5529 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5530 | } |
5531 | ||
b616004c HMH |
5532 | static void cmos_exit(void) |
5533 | { | |
5534 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5535 | } | |
5536 | ||
887965e6 | 5537 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5538 | { |
78f81cc4 BD |
5539 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5540 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5541 | if (!cmos_handle) |
887965e6 | 5542 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5543 | else { |
887965e6 AD |
5544 | seq_printf(m, "status:\t\tsupported\n"); |
5545 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5546 | } |
5547 | ||
887965e6 | 5548 | return 0; |
1da177e4 LT |
5549 | } |
5550 | ||
78f81cc4 | 5551 | static int cmos_write(char *buf) |
1da177e4 LT |
5552 | { |
5553 | char *cmd; | |
c9bea99c | 5554 | int cmos_cmd, res; |
1da177e4 LT |
5555 | |
5556 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5557 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5558 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5559 | /* cmos_cmd set */ |
5560 | } else | |
5561 | return -EINVAL; | |
5562 | ||
c9bea99c HMH |
5563 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5564 | if (res) | |
5565 | return res; | |
1da177e4 LT |
5566 | } |
5567 | ||
5568 | return 0; | |
78f81cc4 BD |
5569 | } |
5570 | ||
a5763f22 HMH |
5571 | static struct ibm_struct cmos_driver_data = { |
5572 | .name = "cmos", | |
5573 | .read = cmos_read, | |
5574 | .write = cmos_write, | |
b616004c | 5575 | .exit = cmos_exit, |
a5763f22 | 5576 | }; |
56b6aeb0 HMH |
5577 | |
5578 | /************************************************************************* | |
5579 | * LED subdriver | |
5580 | */ | |
5581 | ||
f74a27d4 HMH |
5582 | enum led_access_mode { |
5583 | TPACPI_LED_NONE = 0, | |
5584 | TPACPI_LED_570, /* 570 */ | |
5585 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5586 | TPACPI_LED_NEW, /* all others */ | |
5587 | }; | |
5588 | ||
5589 | enum { /* For TPACPI_LED_OLD */ | |
5590 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5591 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5592 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5593 | }; | |
5594 | ||
9a8e1738 | 5595 | static enum led_access_mode led_supported; |
78f81cc4 | 5596 | |
2cbb5c8f | 5597 | static acpi_handle led_handle; |
56b6aeb0 | 5598 | |
f21179a4 | 5599 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5600 | static struct tpacpi_led_classdev *tpacpi_leds; |
5601 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5602 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5603 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5604 | "tpacpi::power", | |
5605 | "tpacpi:orange:batt", | |
5606 | "tpacpi:green:batt", | |
5607 | "tpacpi::dock_active", | |
5608 | "tpacpi::bay_active", | |
5609 | "tpacpi::dock_batt", | |
5610 | "tpacpi::unknown_led", | |
5611 | "tpacpi::standby", | |
f21179a4 HMH |
5612 | "tpacpi::dock_status1", |
5613 | "tpacpi::dock_status2", | |
5614 | "tpacpi::unknown_led2", | |
5615 | "tpacpi::unknown_led3", | |
5616 | "tpacpi::thinkvantage", | |
af116101 | 5617 | }; |
f21179a4 | 5618 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5619 | |
5620 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5621 | { | |
5622 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5623 | return false; | |
5624 | #else | |
f21179a4 | 5625 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5626 | #endif |
5627 | } | |
af116101 | 5628 | |
24e45bbe | 5629 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5630 | { |
5631 | int status; | |
af116101 | 5632 | enum led_status_t led_s; |
4fa6811b HMH |
5633 | |
5634 | switch (led_supported) { | |
5635 | case TPACPI_LED_570: | |
5636 | if (!acpi_evalf(ec_handle, | |
5637 | &status, "GLED", "dd", 1 << led)) | |
5638 | return -EIO; | |
72a979f0 | 5639 | led_s = (status == 0) ? |
4fa6811b | 5640 | TPACPI_LED_OFF : |
72a979f0 | 5641 | ((status == 1) ? |
4fa6811b HMH |
5642 | TPACPI_LED_ON : |
5643 | TPACPI_LED_BLINK); | |
af116101 HMH |
5644 | tpacpi_led_state_cache[led] = led_s; |
5645 | return led_s; | |
4fa6811b HMH |
5646 | default: |
5647 | return -ENXIO; | |
5648 | } | |
5649 | ||
5650 | /* not reached */ | |
5651 | } | |
5652 | ||
24e45bbe HMH |
5653 | static int led_set_status(const unsigned int led, |
5654 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5655 | { |
5656 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5657 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5658 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5659 | |
5660 | int rc = 0; | |
5661 | ||
5662 | switch (led_supported) { | |
5663 | case TPACPI_LED_570: | |
24e45bbe | 5664 | /* 570 */ |
a4d5effc | 5665 | if (unlikely(led > 7)) |
24e45bbe | 5666 | return -EINVAL; |
a4d5effc HMH |
5667 | if (unlikely(tpacpi_is_led_restricted(led))) |
5668 | return -EPERM; | |
24e45bbe HMH |
5669 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5670 | (1 << led), led_sled_arg1[ledstatus])) | |
5671 | rc = -EIO; | |
5672 | break; | |
4fa6811b | 5673 | case TPACPI_LED_OLD: |
24e45bbe | 5674 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5675 | if (unlikely(led > 7)) |
24e45bbe | 5676 | return -EINVAL; |
a4d5effc HMH |
5677 | if (unlikely(tpacpi_is_led_restricted(led))) |
5678 | return -EPERM; | |
24e45bbe HMH |
5679 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5680 | if (rc >= 0) | |
5681 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5682 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5683 | if (rc >= 0) | |
5684 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5685 | (ledstatus != TPACPI_LED_OFF) << led); | |
5686 | break; | |
4fa6811b | 5687 | case TPACPI_LED_NEW: |
24e45bbe | 5688 | /* all others */ |
a4d5effc HMH |
5689 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5690 | return -EINVAL; | |
5691 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5692 | return -EPERM; | |
24e45bbe HMH |
5693 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5694 | led, led_led_arg1[ledstatus])) | |
5695 | rc = -EIO; | |
5696 | break; | |
4fa6811b HMH |
5697 | default: |
5698 | rc = -ENXIO; | |
5699 | } | |
5700 | ||
af116101 HMH |
5701 | if (!rc) |
5702 | tpacpi_led_state_cache[led] = ledstatus; | |
5703 | ||
5704 | return rc; | |
5705 | } | |
5706 | ||
af116101 HMH |
5707 | static void led_set_status_worker(struct work_struct *work) |
5708 | { | |
5709 | struct tpacpi_led_classdev *data = | |
5710 | container_of(work, struct tpacpi_led_classdev, work); | |
5711 | ||
5712 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5713 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5714 | } |
5715 | ||
5716 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5717 | enum led_brightness brightness) | |
5718 | { | |
5719 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5720 | struct tpacpi_led_classdev, led_classdev); | |
5721 | ||
75bd3bf2 HMH |
5722 | if (brightness == LED_OFF) |
5723 | data->new_state = TPACPI_LED_OFF; | |
5724 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5725 | data->new_state = TPACPI_LED_ON; | |
5726 | else | |
5727 | data->new_state = TPACPI_LED_BLINK; | |
5728 | ||
e0e3c061 | 5729 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5730 | } |
5731 | ||
5732 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5733 | unsigned long *delay_on, unsigned long *delay_off) | |
5734 | { | |
5735 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5736 | struct tpacpi_led_classdev, led_classdev); | |
5737 | ||
5738 | /* Can we choose the flash rate? */ | |
5739 | if (*delay_on == 0 && *delay_off == 0) { | |
5740 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5741 | *delay_on = 500; /* ms */ | |
5742 | *delay_off = 500; /* ms */ | |
5743 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5744 | return -EINVAL; | |
5745 | ||
75bd3bf2 | 5746 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5747 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5748 | |
5749 | return 0; | |
5750 | } | |
5751 | ||
5752 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5753 | { | |
5754 | int rc; | |
5755 | ||
5756 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5757 | struct tpacpi_led_classdev, led_classdev); | |
5758 | ||
5759 | rc = led_get_status(data->led); | |
5760 | ||
5761 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5762 | rc = LED_OFF; /* no error handling in led class :( */ | |
5763 | else | |
5764 | rc = LED_FULL; | |
5765 | ||
4fa6811b HMH |
5766 | return rc; |
5767 | } | |
5768 | ||
af116101 HMH |
5769 | static void led_exit(void) |
5770 | { | |
5771 | unsigned int i; | |
5772 | ||
5773 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5774 | if (tpacpi_leds[i].led_classdev.name) | |
5775 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5776 | } | |
5777 | ||
e03e389d | 5778 | flush_workqueue(tpacpi_wq); |
af116101 | 5779 | kfree(tpacpi_leds); |
af116101 HMH |
5780 | } |
5781 | ||
a4d5effc HMH |
5782 | static int __init tpacpi_init_led(unsigned int led) |
5783 | { | |
5784 | int rc; | |
5785 | ||
5786 | tpacpi_leds[led].led = led; | |
5787 | ||
f21179a4 HMH |
5788 | /* LEDs with no name don't get registered */ |
5789 | if (!tpacpi_led_names[led]) | |
5790 | return 0; | |
5791 | ||
a4d5effc HMH |
5792 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5793 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5794 | if (led_supported == TPACPI_LED_570) | |
5795 | tpacpi_leds[led].led_classdev.brightness_get = | |
5796 | &led_sysfs_get; | |
5797 | ||
5798 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5799 | ||
5800 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5801 | ||
5802 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5803 | &tpacpi_leds[led].led_classdev); | |
5804 | if (rc < 0) | |
5805 | tpacpi_leds[led].led_classdev.name = NULL; | |
5806 | ||
5807 | return rc; | |
5808 | } | |
5809 | ||
f21179a4 HMH |
5810 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5811 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5812 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5813 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5814 | ||
5815 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5816 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5817 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5818 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5819 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5820 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5821 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5822 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5823 | ||
5824 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5825 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5826 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5827 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5828 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5829 | ||
5830 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5831 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5832 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5833 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5834 | ||
5835 | /* (1) - may have excess leds enabled on MSB */ | |
5836 | ||
5837 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5838 | { /* Lenovo */ | |
5839 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5840 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5841 | .quirks = 0x1fffU, | |
5842 | }, | |
5843 | { /* IBM ThinkPads with no EC version string */ | |
5844 | .vendor = PCI_VENDOR_ID_IBM, | |
5845 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5846 | .quirks = 0x00ffU, | |
5847 | }, | |
5848 | { /* IBM ThinkPads with EC version string */ | |
5849 | .vendor = PCI_VENDOR_ID_IBM, | |
5850 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5851 | .quirks = 0x00bfU, | |
5852 | }, | |
5853 | }; | |
5854 | ||
5855 | #undef TPACPI_LEDQ_IBM | |
5856 | #undef TPACPI_LEDQ_LNV | |
5857 | ||
2cbb5c8f HMH |
5858 | static enum led_access_mode __init led_init_detect_mode(void) |
5859 | { | |
5860 | acpi_status status; | |
5861 | ||
5862 | if (tpacpi_is_ibm()) { | |
5863 | /* 570 */ | |
5864 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5865 | if (ACPI_SUCCESS(status)) | |
5866 | return TPACPI_LED_570; | |
5867 | ||
5868 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5869 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5870 | if (ACPI_SUCCESS(status)) | |
5871 | return TPACPI_LED_OLD; | |
5872 | } | |
5873 | ||
5874 | /* most others */ | |
5875 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5876 | if (ACPI_SUCCESS(status)) | |
5877 | return TPACPI_LED_NEW; | |
5878 | ||
5879 | /* R30, R31, and unknown firmwares */ | |
5880 | led_handle = NULL; | |
5881 | return TPACPI_LED_NONE; | |
5882 | } | |
5883 | ||
a5763f22 | 5884 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5885 | { |
af116101 HMH |
5886 | unsigned int i; |
5887 | int rc; | |
f21179a4 | 5888 | unsigned long useful_leds; |
af116101 | 5889 | |
fe08bc4b HMH |
5890 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5891 | ||
2cbb5c8f | 5892 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5893 | |
fcb44e12 AL |
5894 | if (led_supported != TPACPI_LED_NONE) { |
5895 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
5896 | ARRAY_SIZE(led_useful_qtable)); | |
5897 | ||
5898 | if (!useful_leds) { | |
5899 | led_handle = NULL; | |
5900 | led_supported = TPACPI_LED_NONE; | |
5901 | } | |
5902 | } | |
5903 | ||
fe08bc4b HMH |
5904 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5905 | str_supported(led_supported), led_supported); | |
5906 | ||
f21179a4 HMH |
5907 | if (led_supported == TPACPI_LED_NONE) |
5908 | return 1; | |
5909 | ||
af116101 HMH |
5910 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5911 | GFP_KERNEL); | |
5912 | if (!tpacpi_leds) { | |
0978e012 | 5913 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
5914 | return -ENOMEM; |
5915 | } | |
5916 | ||
5917 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
5918 | tpacpi_leds[i].led = -1; |
5919 | ||
f21179a4 HMH |
5920 | if (!tpacpi_is_led_restricted(i) && |
5921 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5922 | rc = tpacpi_init_led(i); |
5923 | if (rc < 0) { | |
5924 | led_exit(); | |
5925 | return rc; | |
5926 | } | |
af116101 HMH |
5927 | } |
5928 | } | |
5929 | ||
a4d5effc | 5930 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
0978e012 JP |
5931 | pr_notice("warning: userspace override of important " |
5932 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5933 | #endif |
f21179a4 | 5934 | return 0; |
78f81cc4 BD |
5935 | } |
5936 | ||
4fa6811b HMH |
5937 | #define str_led_status(s) \ |
5938 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5939 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5940 | |
887965e6 | 5941 | static int led_read(struct seq_file *m) |
1da177e4 | 5942 | { |
78f81cc4 | 5943 | if (!led_supported) { |
887965e6 AD |
5944 | seq_printf(m, "status:\t\tnot supported\n"); |
5945 | return 0; | |
78f81cc4 | 5946 | } |
887965e6 | 5947 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5948 | |
efa27145 | 5949 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5950 | /* 570 */ |
5951 | int i, status; | |
5952 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5953 | status = led_get_status(i); |
5954 | if (status < 0) | |
78f81cc4 | 5955 | return -EIO; |
887965e6 | 5956 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5957 | i, str_led_status(status)); |
78f81cc4 BD |
5958 | } |
5959 | } | |
5960 | ||
887965e6 | 5961 | seq_printf(m, "commands:\t" |
f21179a4 | 5962 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5963 | |
887965e6 | 5964 | return 0; |
1da177e4 LT |
5965 | } |
5966 | ||
78f81cc4 | 5967 | static int led_write(char *buf) |
1da177e4 LT |
5968 | { |
5969 | char *cmd; | |
4fa6811b HMH |
5970 | int led, rc; |
5971 | enum led_status_t s; | |
78f81cc4 BD |
5972 | |
5973 | if (!led_supported) | |
5974 | return -ENODEV; | |
1da177e4 LT |
5975 | |
5976 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 5977 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
5978 | return -EINVAL; |
5979 | ||
edf2d778 AL |
5980 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
5981 | tpacpi_leds[led].led < 0) | |
5982 | return -ENODEV; | |
5983 | ||
78f81cc4 | 5984 | if (strstr(cmd, "off")) { |
4fa6811b | 5985 | s = TPACPI_LED_OFF; |
1da177e4 | 5986 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5987 | s = TPACPI_LED_ON; |
78f81cc4 | 5988 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5989 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5990 | } else { |
4fa6811b | 5991 | return -EINVAL; |
78f81cc4 | 5992 | } |
4fa6811b HMH |
5993 | |
5994 | rc = led_set_status(led, s); | |
5995 | if (rc < 0) | |
5996 | return rc; | |
78f81cc4 BD |
5997 | } |
5998 | ||
5999 | return 0; | |
6000 | } | |
6001 | ||
a5763f22 HMH |
6002 | static struct ibm_struct led_driver_data = { |
6003 | .name = "led", | |
6004 | .read = led_read, | |
6005 | .write = led_write, | |
af116101 | 6006 | .exit = led_exit, |
a5763f22 HMH |
6007 | }; |
6008 | ||
56b6aeb0 HMH |
6009 | /************************************************************************* |
6010 | * Beep subdriver | |
6011 | */ | |
6012 | ||
e0c7dfe7 | 6013 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 6014 | |
60201732 HMH |
6015 | #define TPACPI_BEEP_Q1 0x0001 |
6016 | ||
6017 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
6018 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
6019 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
6020 | }; | |
6021 | ||
a5763f22 | 6022 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 6023 | { |
60201732 HMH |
6024 | unsigned long quirks; |
6025 | ||
fe08bc4b HMH |
6026 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
6027 | ||
e0c7dfe7 | 6028 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 6029 | |
fe08bc4b HMH |
6030 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
6031 | str_supported(beep_handle != NULL)); | |
6032 | ||
60201732 HMH |
6033 | quirks = tpacpi_check_quirks(beep_quirk_table, |
6034 | ARRAY_SIZE(beep_quirk_table)); | |
6035 | ||
6036 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
6037 | ||
72a979f0 | 6038 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
6039 | } |
6040 | ||
887965e6 | 6041 | static int beep_read(struct seq_file *m) |
78f81cc4 | 6042 | { |
78f81cc4 | 6043 | if (!beep_handle) |
887965e6 | 6044 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 6045 | else { |
887965e6 AD |
6046 | seq_printf(m, "status:\t\tsupported\n"); |
6047 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
6048 | } |
6049 | ||
887965e6 | 6050 | return 0; |
78f81cc4 BD |
6051 | } |
6052 | ||
6053 | static int beep_write(char *buf) | |
6054 | { | |
6055 | char *cmd; | |
6056 | int beep_cmd; | |
6057 | ||
6058 | if (!beep_handle) | |
6059 | return -ENODEV; | |
6060 | ||
6061 | while ((cmd = next_cmd(&buf))) { | |
6062 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
6063 | beep_cmd >= 0 && beep_cmd <= 17) { | |
6064 | /* beep_cmd set */ | |
6065 | } else | |
6066 | return -EINVAL; | |
60201732 HMH |
6067 | if (tp_features.beep_needs_two_args) { |
6068 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
6069 | beep_cmd, 0)) | |
6070 | return -EIO; | |
6071 | } else { | |
6072 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
6073 | beep_cmd)) | |
6074 | return -EIO; | |
6075 | } | |
78f81cc4 BD |
6076 | } |
6077 | ||
6078 | return 0; | |
6079 | } | |
6080 | ||
a5763f22 HMH |
6081 | static struct ibm_struct beep_driver_data = { |
6082 | .name = "beep", | |
6083 | .read = beep_read, | |
6084 | .write = beep_write, | |
6085 | }; | |
6086 | ||
56b6aeb0 HMH |
6087 | /************************************************************************* |
6088 | * Thermal subdriver | |
6089 | */ | |
78f81cc4 | 6090 | |
f74a27d4 HMH |
6091 | enum thermal_access_mode { |
6092 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
6093 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
6094 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
6095 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
6096 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
6097 | }; | |
6098 | ||
6099 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
6100 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
6101 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
6102 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
6103 | |
6104 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
6105 | }; |
6106 | ||
9ebd9e83 | 6107 | |
f74a27d4 HMH |
6108 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
6109 | struct ibm_thermal_sensors_struct { | |
6110 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
6111 | }; | |
6112 | ||
a26f878a | 6113 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 6114 | |
b21a15f6 HMH |
6115 | /* idx is zero-based */ |
6116 | static int thermal_get_sensor(int idx, s32 *value) | |
6117 | { | |
6118 | int t; | |
6119 | s8 tmp; | |
6120 | char tmpi[5]; | |
6121 | ||
6122 | t = TP_EC_THERMAL_TMP0; | |
6123 | ||
6124 | switch (thermal_read_mode) { | |
6125 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
6126 | case TPACPI_THERMAL_TPEC_16: | |
6127 | if (idx >= 8 && idx <= 15) { | |
6128 | t = TP_EC_THERMAL_TMP8; | |
6129 | idx -= 8; | |
6130 | } | |
6131 | /* fallthrough */ | |
6132 | #endif | |
6133 | case TPACPI_THERMAL_TPEC_8: | |
6134 | if (idx <= 7) { | |
6135 | if (!acpi_ec_read(t + idx, &tmp)) | |
6136 | return -EIO; | |
6137 | *value = tmp * 1000; | |
6138 | return 0; | |
6139 | } | |
6140 | break; | |
6141 | ||
6142 | case TPACPI_THERMAL_ACPI_UPDT: | |
6143 | if (idx <= 7) { | |
6144 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6145 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
6146 | return -EIO; | |
6147 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6148 | return -EIO; | |
6149 | *value = (t - 2732) * 100; | |
6150 | return 0; | |
6151 | } | |
6152 | break; | |
6153 | ||
6154 | case TPACPI_THERMAL_ACPI_TMP07: | |
6155 | if (idx <= 7) { | |
6156 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6157 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6158 | return -EIO; | |
6159 | if (t > 127 || t < -127) | |
6160 | t = TP_EC_THERMAL_TMP_NA; | |
6161 | *value = t * 1000; | |
6162 | return 0; | |
6163 | } | |
6164 | break; | |
6165 | ||
6166 | case TPACPI_THERMAL_NONE: | |
6167 | default: | |
6168 | return -ENOSYS; | |
6169 | } | |
6170 | ||
6171 | return -EINVAL; | |
6172 | } | |
6173 | ||
6174 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
6175 | { | |
6176 | int res, i; | |
6177 | int n; | |
6178 | ||
6179 | n = 8; | |
6180 | i = 0; | |
6181 | ||
6182 | if (!s) | |
6183 | return -EINVAL; | |
6184 | ||
6185 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
6186 | n = 16; | |
6187 | ||
35ff8b9f | 6188 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
6189 | res = thermal_get_sensor(i, &s->temp[i]); |
6190 | if (res) | |
6191 | return res; | |
6192 | } | |
6193 | ||
6194 | return n; | |
6195 | } | |
f74a27d4 | 6196 | |
9ebd9e83 HMH |
6197 | static void thermal_dump_all_sensors(void) |
6198 | { | |
6199 | int n, i; | |
6200 | struct ibm_thermal_sensors_struct t; | |
6201 | ||
6202 | n = thermal_get_sensors(&t); | |
6203 | if (n <= 0) | |
6204 | return; | |
6205 | ||
0978e012 | 6206 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
6207 | |
6208 | for (i = 0; i < n; i++) { | |
6209 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 6210 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 6211 | else |
0978e012 | 6212 | pr_cont(" N/A"); |
9ebd9e83 HMH |
6213 | } |
6214 | ||
0978e012 | 6215 | pr_cont("\n"); |
9ebd9e83 HMH |
6216 | } |
6217 | ||
2c37aa4e HMH |
6218 | /* sysfs temp##_input -------------------------------------------------- */ |
6219 | ||
6220 | static ssize_t thermal_temp_input_show(struct device *dev, | |
6221 | struct device_attribute *attr, | |
6222 | char *buf) | |
6223 | { | |
6224 | struct sensor_device_attribute *sensor_attr = | |
6225 | to_sensor_dev_attr(attr); | |
6226 | int idx = sensor_attr->index; | |
6227 | s32 value; | |
6228 | int res; | |
6229 | ||
6230 | res = thermal_get_sensor(idx, &value); | |
6231 | if (res) | |
6232 | return res; | |
9ebd9e83 | 6233 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
6234 | return -ENXIO; |
6235 | ||
6236 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
6237 | } | |
6238 | ||
6239 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
6240 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
6241 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
6242 | |
6243 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
6244 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
6245 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
6246 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
6247 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
6248 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
6249 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
6250 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
6251 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
6252 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
6253 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
6254 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
6255 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
6256 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
6257 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
6258 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
6259 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
6260 | }; | |
6261 | ||
6262 | #define THERMAL_ATTRS(X) \ | |
6263 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
6264 | ||
6265 | static struct attribute *thermal_temp_input_attr[] = { | |
6266 | THERMAL_ATTRS(8), | |
6267 | THERMAL_ATTRS(9), | |
6268 | THERMAL_ATTRS(10), | |
6269 | THERMAL_ATTRS(11), | |
6270 | THERMAL_ATTRS(12), | |
6271 | THERMAL_ATTRS(13), | |
6272 | THERMAL_ATTRS(14), | |
6273 | THERMAL_ATTRS(15), | |
6274 | THERMAL_ATTRS(0), | |
6275 | THERMAL_ATTRS(1), | |
6276 | THERMAL_ATTRS(2), | |
6277 | THERMAL_ATTRS(3), | |
6278 | THERMAL_ATTRS(4), | |
6279 | THERMAL_ATTRS(5), | |
6280 | THERMAL_ATTRS(6), | |
6281 | THERMAL_ATTRS(7), | |
6282 | NULL | |
6283 | }; | |
6284 | ||
6285 | static const struct attribute_group thermal_temp_input16_group = { | |
6286 | .attrs = thermal_temp_input_attr | |
6287 | }; | |
6288 | ||
6289 | static const struct attribute_group thermal_temp_input8_group = { | |
6290 | .attrs = &thermal_temp_input_attr[8] | |
6291 | }; | |
6292 | ||
6293 | #undef THERMAL_SENSOR_ATTR_TEMP | |
6294 | #undef THERMAL_ATTRS | |
6295 | ||
6296 | /* --------------------------------------------------------------------- */ | |
6297 | ||
a5763f22 | 6298 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6299 | { |
60eb0b35 HMH |
6300 | u8 t, ta1, ta2; |
6301 | int i; | |
5fba344c | 6302 | int acpi_tmp7; |
2c37aa4e | 6303 | int res; |
5fba344c | 6304 | |
fe08bc4b HMH |
6305 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
6306 | ||
5fba344c | 6307 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 6308 | |
3d6f99ca | 6309 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
6310 | /* |
6311 | * Direct EC access mode: sensors at registers | |
6312 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
6313 | * non-implemented, thermal sensors return 0x80 when | |
6314 | * not available | |
6315 | */ | |
78f81cc4 | 6316 | |
60eb0b35 HMH |
6317 | ta1 = ta2 = 0; |
6318 | for (i = 0; i < 8; i++) { | |
04cc862c | 6319 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
6320 | ta1 |= t; |
6321 | } else { | |
6322 | ta1 = 0; | |
6323 | break; | |
6324 | } | |
04cc862c | 6325 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
6326 | ta2 |= t; |
6327 | } else { | |
6328 | ta1 = 0; | |
6329 | break; | |
6330 | } | |
6331 | } | |
6332 | if (ta1 == 0) { | |
6333 | /* This is sheer paranoia, but we handle it anyway */ | |
6334 | if (acpi_tmp7) { | |
0978e012 | 6335 | pr_err("ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
6336 | "falling back to ACPI TMPx access " |
6337 | "mode\n"); | |
efa27145 | 6338 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6339 | } else { |
0978e012 | 6340 | pr_err("ThinkPad ACPI EC access misbehaving, " |
60eb0b35 | 6341 | "disabling thermal sensors access\n"); |
efa27145 | 6342 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6343 | } |
6344 | } else { | |
6345 | thermal_read_mode = | |
6346 | (ta2 != 0) ? | |
efa27145 | 6347 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
6348 | } |
6349 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6350 | if (tpacpi_is_ibm() && |
6351 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6352 | /* 600e/x, 770e, 770x */ |
efa27145 | 6353 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6354 | } else { |
e28393c0 | 6355 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6356 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6357 | } |
6358 | } else { | |
6359 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6360 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6361 | } |
78f81cc4 | 6362 | |
fe08bc4b HMH |
6363 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6364 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6365 | thermal_read_mode); | |
6366 | ||
35ff8b9f | 6367 | switch (thermal_read_mode) { |
2c37aa4e | 6368 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6369 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6370 | &thermal_temp_input16_group); |
6371 | if (res) | |
6372 | return res; | |
6373 | break; | |
6374 | case TPACPI_THERMAL_TPEC_8: | |
6375 | case TPACPI_THERMAL_ACPI_TMP07: | |
6376 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6377 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6378 | &thermal_temp_input8_group); |
6379 | if (res) | |
6380 | return res; | |
6381 | break; | |
6382 | case TPACPI_THERMAL_NONE: | |
6383 | default: | |
6384 | return 1; | |
6385 | } | |
6386 | ||
6387 | return 0; | |
6388 | } | |
6389 | ||
6390 | static void thermal_exit(void) | |
6391 | { | |
35ff8b9f | 6392 | switch (thermal_read_mode) { |
2c37aa4e | 6393 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6394 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6395 | &thermal_temp_input16_group); |
6396 | break; | |
6397 | case TPACPI_THERMAL_TPEC_8: | |
6398 | case TPACPI_THERMAL_ACPI_TMP07: | |
6399 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6400 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 6401 | &thermal_temp_input8_group); |
2c37aa4e HMH |
6402 | break; |
6403 | case TPACPI_THERMAL_NONE: | |
6404 | default: | |
6405 | break; | |
6406 | } | |
78f81cc4 BD |
6407 | } |
6408 | ||
887965e6 | 6409 | static int thermal_read(struct seq_file *m) |
a26f878a | 6410 | { |
a26f878a HMH |
6411 | int n, i; |
6412 | struct ibm_thermal_sensors_struct t; | |
6413 | ||
6414 | n = thermal_get_sensors(&t); | |
6415 | if (unlikely(n < 0)) | |
6416 | return n; | |
6417 | ||
887965e6 | 6418 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6419 | |
6420 | if (n > 0) { | |
6421 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6422 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6423 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6424 | } else |
887965e6 | 6425 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6426 | |
887965e6 | 6427 | return 0; |
78f81cc4 BD |
6428 | } |
6429 | ||
a5763f22 HMH |
6430 | static struct ibm_struct thermal_driver_data = { |
6431 | .name = "thermal", | |
6432 | .read = thermal_read, | |
2c37aa4e | 6433 | .exit = thermal_exit, |
a5763f22 HMH |
6434 | }; |
6435 | ||
56b6aeb0 HMH |
6436 | /************************************************************************* |
6437 | * Backlight/brightness subdriver | |
6438 | */ | |
6439 | ||
f74a27d4 HMH |
6440 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6441 | ||
0e501834 HMH |
6442 | /* |
6443 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6444 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6445 | * | |
6446 | * EC HBRV (0x31) has the following layout | |
6447 | * Bit 7: unknown function | |
6448 | * Bit 6: unknown function | |
6449 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6450 | * Bit 4: must be set to zero to avoid problems | |
6451 | * Bit 3-0: backlight brightness level | |
6452 | * | |
6453 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6454 | * |
6455 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6456 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6457 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6458 | */ |
6459 | ||
e11aecf1 HMH |
6460 | enum { |
6461 | TP_EC_BACKLIGHT = 0x31, | |
6462 | ||
6463 | /* TP_EC_BACKLIGHT bitmasks */ | |
6464 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6465 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6466 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6467 | }; | |
6468 | ||
0e501834 HMH |
6469 | enum tpacpi_brightness_access_mode { |
6470 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6471 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6472 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6473 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6474 | TPACPI_BRGHT_MODE_MAX | |
6475 | }; | |
6476 | ||
94954cc6 | 6477 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6478 | |
6479 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6480 | TPACPI_BRGHT_MODE_MAX; | |
6481 | ||
f74a27d4 HMH |
6482 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6483 | ||
b21a15f6 | 6484 | static struct mutex brightness_mutex; |
56b6aeb0 | 6485 | |
0e501834 HMH |
6486 | /* NVRAM brightness access, |
6487 | * call with brightness_mutex held! */ | |
6488 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6489 | { |
0e501834 | 6490 | u8 lnvram; |
b21a15f6 | 6491 | |
0e501834 HMH |
6492 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6493 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6494 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6495 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6496 | |
6497 | return lnvram; | |
6498 | } | |
6499 | ||
6500 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6501 | { | |
6502 | u8 lec = 0; | |
6503 | u8 b_nvram; | |
6504 | ||
6505 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6506 | return; | |
6507 | ||
6508 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6509 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6510 | ||
6511 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6512 | return; | |
6513 | ||
6514 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6515 | goto unlock; | |
6516 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6517 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6518 | ||
6519 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6520 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6521 | /* NVRAM needs update */ | |
6522 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6523 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6524 | b_nvram |= lec; | |
6525 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6526 | dbg_printk(TPACPI_DBG_BRGHT, | |
6527 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6528 | (unsigned int) lec, (unsigned int) b_nvram); | |
6529 | } else | |
6530 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6531 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6532 | (unsigned int) lec, (unsigned int) b_nvram); | |
6533 | ||
6534 | unlock: | |
6535 | mutex_unlock(&brightness_mutex); | |
6536 | } | |
6537 | ||
6538 | ||
6539 | /* call with brightness_mutex held! */ | |
6540 | static int tpacpi_brightness_get_raw(int *status) | |
6541 | { | |
6542 | u8 lec = 0; | |
6543 | ||
6544 | switch (brightness_mode) { | |
6545 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6546 | *status = tpacpi_brightness_nvram_get(); | |
6547 | return 0; | |
6548 | case TPACPI_BRGHT_MODE_EC: | |
6549 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6550 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6551 | return -EIO; |
0e501834 HMH |
6552 | *status = lec; |
6553 | return 0; | |
6554 | default: | |
6555 | return -ENXIO; | |
b21a15f6 | 6556 | } |
0e501834 HMH |
6557 | } |
6558 | ||
6559 | /* call with brightness_mutex held! */ | |
6560 | /* do NOT call with illegal backlight level value */ | |
6561 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6562 | { | |
6563 | u8 lec = 0; | |
6564 | ||
6565 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6566 | return -EIO; | |
6567 | ||
6568 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6569 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6570 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6571 | return -EIO; | |
6572 | ||
6573 | return 0; | |
6574 | } | |
6575 | ||
6576 | /* call with brightness_mutex held! */ | |
6577 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6578 | { | |
6579 | int cmos_cmd, inc; | |
6580 | unsigned int current_value, i; | |
6581 | ||
6582 | current_value = tpacpi_brightness_nvram_get(); | |
6583 | ||
6584 | if (value == current_value) | |
6585 | return 0; | |
6586 | ||
6587 | cmos_cmd = (value > current_value) ? | |
6588 | TP_CMOS_BRIGHTNESS_UP : | |
6589 | TP_CMOS_BRIGHTNESS_DOWN; | |
6590 | inc = (value > current_value) ? 1 : -1; | |
6591 | ||
6592 | for (i = current_value; i != value; i += inc) | |
6593 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6594 | return -EIO; | |
b21a15f6 | 6595 | |
e11aecf1 | 6596 | return 0; |
b21a15f6 HMH |
6597 | } |
6598 | ||
6599 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6600 | static int brightness_set(unsigned int value) |
b21a15f6 | 6601 | { |
0e501834 | 6602 | int res; |
b21a15f6 | 6603 | |
bd3c7b9e | 6604 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6605 | return -EINVAL; |
6606 | ||
0e501834 HMH |
6607 | vdbg_printk(TPACPI_DBG_BRGHT, |
6608 | "set backlight level to %d\n", value); | |
6609 | ||
7646ea88 | 6610 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6611 | if (res < 0) |
6612 | return res; | |
6613 | ||
0e501834 HMH |
6614 | switch (brightness_mode) { |
6615 | case TPACPI_BRGHT_MODE_EC: | |
6616 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6617 | res = tpacpi_brightness_set_ec(value); | |
6618 | break; | |
6619 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6620 | res = tpacpi_brightness_set_ucmsstep(value); | |
6621 | break; | |
6622 | default: | |
6623 | res = -ENXIO; | |
b21a15f6 HMH |
6624 | } |
6625 | ||
b21a15f6 HMH |
6626 | mutex_unlock(&brightness_mutex); |
6627 | return res; | |
6628 | } | |
6629 | ||
6630 | /* sysfs backlight class ----------------------------------------------- */ | |
6631 | ||
6632 | static int brightness_update_status(struct backlight_device *bd) | |
6633 | { | |
0e501834 | 6634 | unsigned int level = |
b21a15f6 HMH |
6635 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6636 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6637 | bd->props.brightness : 0; |
6638 | ||
6639 | dbg_printk(TPACPI_DBG_BRGHT, | |
6640 | "backlight: attempt to set level to %d\n", | |
6641 | level); | |
6642 | ||
6643 | /* it is the backlight class's job (caller) to handle | |
6644 | * EINTR and other errors properly */ | |
6645 | return brightness_set(level); | |
b21a15f6 HMH |
6646 | } |
6647 | ||
e11aecf1 | 6648 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6649 | { |
e11aecf1 | 6650 | int status, res; |
a3f104c0 | 6651 | |
0e501834 | 6652 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6653 | if (res < 0) |
0e501834 HMH |
6654 | return 0; |
6655 | ||
6656 | res = tpacpi_brightness_get_raw(&status); | |
6657 | ||
6658 | mutex_unlock(&brightness_mutex); | |
6659 | ||
6660 | if (res < 0) | |
6661 | return 0; | |
e11e211a | 6662 | |
e11aecf1 | 6663 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6664 | } |
6665 | ||
347a2686 HMH |
6666 | static void tpacpi_brightness_notify_change(void) |
6667 | { | |
6668 | backlight_force_update(ibm_backlight_device, | |
6669 | BACKLIGHT_UPDATE_HOTKEY); | |
6670 | } | |
6671 | ||
acc2472e | 6672 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6673 | .get_brightness = brightness_get, |
6674 | .update_status = brightness_update_status, | |
56b6aeb0 | 6675 | }; |
e11e211a | 6676 | |
b21a15f6 | 6677 | /* --------------------------------------------------------------------- */ |
e11e211a | 6678 | |
122f2672 HMH |
6679 | /* |
6680 | * Call _BCL method of video device. On some ThinkPads this will | |
6681 | * switch the firmware to the ACPI brightness control mode. | |
6682 | */ | |
6683 | ||
77775838 HMH |
6684 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6685 | { | |
6686 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6687 | union acpi_object *obj; | |
46445b6b | 6688 | struct acpi_device *device, *child; |
77775838 HMH |
6689 | int rc; |
6690 | ||
46445b6b AL |
6691 | if (acpi_bus_get_device(handle, &device)) |
6692 | return 0; | |
6693 | ||
6694 | rc = 0; | |
6695 | list_for_each_entry(child, &device->children, node) { | |
6696 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6697 | NULL, &buffer); | |
6698 | if (ACPI_FAILURE(status)) | |
6699 | continue; | |
6700 | ||
77775838 HMH |
6701 | obj = (union acpi_object *)buffer.pointer; |
6702 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6703 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6704 | TPACPI_MAIL); |
77775838 HMH |
6705 | rc = 0; |
6706 | } else { | |
6707 | rc = obj->package.count; | |
6708 | } | |
46445b6b | 6709 | break; |
77775838 HMH |
6710 | } |
6711 | ||
6712 | kfree(buffer.pointer); | |
6713 | return rc; | |
6714 | } | |
6715 | ||
77775838 HMH |
6716 | |
6717 | /* | |
6718 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6719 | */ | |
6720 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6721 | { | |
122f2672 | 6722 | acpi_handle video_device; |
77775838 | 6723 | int bcl_levels = 0; |
77775838 | 6724 | |
46445b6b | 6725 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6726 | if (video_device) |
6727 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6728 | |
122f2672 | 6729 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6730 | |
122f2672 | 6731 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6732 | } |
6733 | ||
59fe4fe3 HMH |
6734 | /* |
6735 | * These are only useful for models that have only one possibility | |
6736 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6737 | * these quirks. | |
6738 | */ | |
6739 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6740 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6741 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6742 | ||
6743 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6744 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6745 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6746 | ||
6da25bf5 | 6747 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6748 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6749 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6750 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6751 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6752 | ||
6da25bf5 | 6753 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6754 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6755 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6756 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6757 | |
6758 | /* Models with Intel GMA900 */ | |
6759 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6760 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6761 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6762 | }; | |
6763 | ||
77775838 HMH |
6764 | /* |
6765 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6766 | * and bright_maxlvl. | |
6767 | */ | |
6768 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6769 | { | |
6770 | unsigned int b; | |
6771 | ||
6772 | vdbg_printk(TPACPI_DBG_INIT, | |
6773 | "detecting firmware brightness interface capabilities\n"); | |
6774 | ||
6775 | /* we could run a quirks check here (same table used by | |
6776 | * brightness_init) if needed */ | |
6777 | ||
6778 | /* | |
6779 | * We always attempt to detect acpi support, so as to switch | |
6780 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6781 | * going to publish a backlight interface | |
6782 | */ | |
6783 | b = tpacpi_check_std_acpi_brightness_support(); | |
6784 | switch (b) { | |
6785 | case 16: | |
6786 | bright_maxlvl = 15; | |
77775838 HMH |
6787 | break; |
6788 | case 8: | |
6789 | case 0: | |
6790 | bright_maxlvl = 7; | |
77775838 HMH |
6791 | break; |
6792 | default: | |
77775838 HMH |
6793 | tp_features.bright_unkfw = 1; |
6794 | bright_maxlvl = b - 1; | |
6795 | } | |
15c75626 | 6796 | pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); |
77775838 HMH |
6797 | } |
6798 | ||
a5763f22 | 6799 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6800 | { |
a19a6ee6 | 6801 | struct backlight_properties props; |
56b6aeb0 | 6802 | int b; |
59fe4fe3 | 6803 | unsigned long quirks; |
56b6aeb0 | 6804 | |
fe08bc4b HMH |
6805 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6806 | ||
f432255e HMH |
6807 | mutex_init(&brightness_mutex); |
6808 | ||
59fe4fe3 HMH |
6809 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6810 | ARRAY_SIZE(brightness_quirk_table)); | |
6811 | ||
77775838 HMH |
6812 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6813 | ||
6814 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6815 | if (tp_features.bright_unkfw) | |
6816 | return 1; | |
2dba1b5d | 6817 | |
b5972796 | 6818 | if (!brightness_enable) { |
0e501834 | 6819 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6820 | "brightness support disabled by " |
6821 | "module parameter\n"); | |
6822 | return 1; | |
6823 | } | |
6824 | ||
b33c6ce5 | 6825 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 6826 | if (brightness_enable > 1) { |
0978e012 JP |
6827 | pr_info("Standard ACPI backlight interface " |
6828 | "available, not loading native one\n"); | |
217f0963 HMH |
6829 | return 1; |
6830 | } else if (brightness_enable == 1) { | |
0978e012 | 6831 | pr_warn("Cannot enable backlight brightness support, " |
217f0963 | 6832 | "ACPI is already handling it. Refer to the " |
0978e012 | 6833 | "acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6834 | return 1; |
6835 | } | |
6836 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
0978e012 JP |
6837 | pr_notice("Standard ACPI backlight interface not " |
6838 | "available, thinkpad_acpi native " | |
6839 | "brightness control enabled\n"); | |
217f0963 HMH |
6840 | } |
6841 | ||
0e501834 HMH |
6842 | /* |
6843 | * Check for module parameter bogosity, note that we | |
6844 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6845 | * able to detect "unspecified" | |
6846 | */ | |
6847 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6848 | return -EINVAL; | |
24d3b774 | 6849 | |
0e501834 HMH |
6850 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6851 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6852 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6853 | if (quirks & TPACPI_BRGHT_Q_EC) |
6854 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6855 | else | |
0e501834 | 6856 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6857 | |
0e501834 | 6858 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6859 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6860 | brightness_mode); |
6861 | } | |
24d3b774 | 6862 | |
d7880f10 | 6863 | /* Safety */ |
e28393c0 | 6864 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6865 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6866 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6867 | return -EINVAL; | |
6868 | ||
0e501834 | 6869 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6870 | return 1; |
56b6aeb0 | 6871 | |
a19a6ee6 | 6872 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6873 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6874 | props.max_brightness = bright_maxlvl; |
6875 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6876 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6877 | NULL, NULL, | |
6878 | &ibm_backlight_data, | |
6879 | &props); | |
56b6aeb0 | 6880 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6881 | int rc = PTR_ERR(ibm_backlight_device); |
6882 | ibm_backlight_device = NULL; | |
0978e012 | 6883 | pr_err("Could not register backlight device\n"); |
435c47e2 | 6884 | return rc; |
56b6aeb0 | 6885 | } |
0e501834 HMH |
6886 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6887 | "brightness is supported\n"); | |
56b6aeb0 | 6888 | |
59fe4fe3 | 6889 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
0978e012 JP |
6890 | pr_notice("brightness: will use unverified default: " |
6891 | "brightness_mode=%d\n", brightness_mode); | |
6892 | pr_notice("brightness: please report to %s whether it works well " | |
6893 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
59fe4fe3 HMH |
6894 | } |
6895 | ||
7d9745cf HMH |
6896 | /* Added by mistake in early 2007. Probably useless, but it could |
6897 | * be working around some unknown firmware problem where the value | |
6898 | * read at startup doesn't match the real hardware state... so leave | |
6899 | * it in place just in case */ | |
56b6aeb0 HMH |
6900 | backlight_update_status(ibm_backlight_device); |
6901 | ||
347a2686 HMH |
6902 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6903 | "brightness: registering brightness hotkeys " | |
6904 | "as change notification\n"); | |
6905 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6906 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6907 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6908 | return 0; |
6909 | } | |
6910 | ||
fd3c3a42 | 6911 | static void brightness_suspend(void) |
0e501834 HMH |
6912 | { |
6913 | tpacpi_brightness_checkpoint_nvram(); | |
6914 | } | |
6915 | ||
6916 | static void brightness_shutdown(void) | |
6917 | { | |
6918 | tpacpi_brightness_checkpoint_nvram(); | |
6919 | } | |
6920 | ||
56b6aeb0 HMH |
6921 | static void brightness_exit(void) |
6922 | { | |
6923 | if (ibm_backlight_device) { | |
0e501834 | 6924 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6925 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6926 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6927 | } |
0e501834 HMH |
6928 | |
6929 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6930 | } |
6931 | ||
887965e6 | 6932 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6933 | { |
56b6aeb0 HMH |
6934 | int level; |
6935 | ||
35ff8b9f HMH |
6936 | level = brightness_get(NULL); |
6937 | if (level < 0) { | |
887965e6 | 6938 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6939 | } else { |
887965e6 AD |
6940 | seq_printf(m, "level:\t\t%d\n", level); |
6941 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
6942 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
6943 | bright_maxlvl); | |
56b6aeb0 HMH |
6944 | } |
6945 | ||
887965e6 | 6946 | return 0; |
56b6aeb0 HMH |
6947 | } |
6948 | ||
8acb0250 HM |
6949 | static int brightness_write(char *buf) |
6950 | { | |
6951 | int level; | |
4273af8d | 6952 | int rc; |
1da177e4 | 6953 | char *cmd; |
1da177e4 | 6954 | |
4273af8d HMH |
6955 | level = brightness_get(NULL); |
6956 | if (level < 0) | |
6957 | return level; | |
78f81cc4 | 6958 | |
4273af8d | 6959 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6960 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 6961 | if (level < bright_maxlvl) |
4273af8d | 6962 | level++; |
78f81cc4 | 6963 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6964 | if (level > 0) |
6965 | level--; | |
6966 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 6967 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 6968 | /* new level set */ |
78f81cc4 BD |
6969 | } else |
6970 | return -EINVAL; | |
78f81cc4 BD |
6971 | } |
6972 | ||
0e501834 HMH |
6973 | tpacpi_disclose_usertask("procfs brightness", |
6974 | "set level to %d\n", level); | |
6975 | ||
4273af8d HMH |
6976 | /* |
6977 | * Now we know what the final level should be, so we try to set it. | |
6978 | * Doing it this way makes the syscall restartable in case of EINTR | |
6979 | */ | |
6980 | rc = brightness_set(level); | |
347a2686 HMH |
6981 | if (!rc && ibm_backlight_device) |
6982 | backlight_force_update(ibm_backlight_device, | |
6983 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 6984 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
6985 | } |
6986 | ||
a5763f22 HMH |
6987 | static struct ibm_struct brightness_driver_data = { |
6988 | .name = "brightness", | |
6989 | .read = brightness_read, | |
6990 | .write = brightness_write, | |
6991 | .exit = brightness_exit, | |
0e501834 HMH |
6992 | .suspend = brightness_suspend, |
6993 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6994 | }; |
6995 | ||
56b6aeb0 HMH |
6996 | /************************************************************************* |
6997 | * Volume subdriver | |
6998 | */ | |
fb87a811 | 6999 | |
329e4e18 HMH |
7000 | /* |
7001 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
7002 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
7003 | * | |
7004 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
7005 | * ThinkPads only implement the MUTE gate. | |
7006 | * | |
7007 | * EC register 0x30 | |
7008 | * Bit 6: MUTE (1 mutes sound) | |
7009 | * Bit 3-0: Volume | |
7010 | * Other bits should be zero as far as we know. | |
7011 | * | |
7012 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
7013 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
7014 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
7015 | * and we leave them unchanged. | |
9a417ec0 AL |
7016 | * |
7017 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
7018 | * in response to user input. Unfortunately, this rarely works well. | |
7019 | * The laptop changes the state of its internal MUTE gate and, on some | |
7020 | * models, sends KEY_MUTE, causing any user code that responds to the | |
7021 | * mute button to get confused. The hardware MUTE gate is also | |
7022 | * unnecessary, since user code can handle the mute button without | |
7023 | * kernel or EC help. | |
7024 | * | |
7025 | * To avoid confusing userspace, we simply disable all EC-based mute | |
7026 | * and volume controls when possible. | |
329e4e18 HMH |
7027 | */ |
7028 | ||
ff850c33 HMH |
7029 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
7030 | ||
0d204c34 HMH |
7031 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
7032 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
7033 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
7034 | ||
cab66613 TI |
7035 | #if SNDRV_CARDS <= 32 |
7036 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
7037 | #else | |
7038 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
7039 | #endif | |
7040 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 7041 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 7042 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
7043 | |
7044 | struct tpacpi_alsa_data { | |
7045 | struct snd_card *card; | |
7046 | struct snd_ctl_elem_id *ctl_mute_id; | |
7047 | struct snd_ctl_elem_id *ctl_vol_id; | |
7048 | }; | |
7049 | ||
7050 | static struct snd_card *alsa_card; | |
7051 | ||
329e4e18 HMH |
7052 | enum { |
7053 | TP_EC_AUDIO = 0x30, | |
7054 | ||
7055 | /* TP_EC_AUDIO bits */ | |
7056 | TP_EC_AUDIO_MUTESW = 6, | |
7057 | ||
7058 | /* TP_EC_AUDIO bitmasks */ | |
7059 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
7060 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
7061 | ||
7062 | /* Maximum volume */ | |
7063 | TP_EC_VOLUME_MAX = 14, | |
7064 | }; | |
7065 | ||
7066 | enum tpacpi_volume_access_mode { | |
7067 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
7068 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
7069 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
7070 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
7071 | TPACPI_VOL_MODE_MAX | |
7072 | }; | |
7073 | ||
a112ceee HMH |
7074 | enum tpacpi_volume_capabilities { |
7075 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
7076 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
7077 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
7078 | TPACPI_VOL_CAP_MAX | |
7079 | }; | |
7080 | ||
9a417ec0 AL |
7081 | enum tpacpi_mute_btn_mode { |
7082 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
7083 | /* We don't know what mode 1 is. */ | |
7084 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
7085 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
7086 | }; | |
7087 | ||
329e4e18 HMH |
7088 | static enum tpacpi_volume_access_mode volume_mode = |
7089 | TPACPI_VOL_MODE_MAX; | |
7090 | ||
a112ceee | 7091 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 7092 | static bool volume_control_allowed; |
9a417ec0 AL |
7093 | static bool software_mute_requested = true; |
7094 | static bool software_mute_active; | |
7095 | static int software_mute_orig_mode; | |
f74a27d4 | 7096 | |
329e4e18 HMH |
7097 | /* |
7098 | * Used to syncronize writers to TP_EC_AUDIO and | |
7099 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
7100 | */ | |
7101 | static struct mutex volume_mutex; | |
7102 | ||
7103 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 7104 | { |
329e4e18 HMH |
7105 | u8 lec = 0; |
7106 | u8 b_nvram; | |
a112ceee | 7107 | u8 ec_mask; |
329e4e18 HMH |
7108 | |
7109 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
7110 | return; | |
c7ac6291 HMH |
7111 | if (!volume_control_allowed) |
7112 | return; | |
9a417ec0 AL |
7113 | if (software_mute_active) |
7114 | return; | |
329e4e18 HMH |
7115 | |
7116 | vdbg_printk(TPACPI_DBG_MIXER, | |
7117 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 7118 | |
a112ceee HMH |
7119 | if (tp_features.mixer_no_level_control) |
7120 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
7121 | else | |
7122 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
7123 | ||
329e4e18 HMH |
7124 | if (mutex_lock_killable(&volume_mutex) < 0) |
7125 | return; | |
7126 | ||
7127 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
7128 | goto unlock; | |
7129 | lec &= ec_mask; | |
7130 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
7131 | ||
7132 | if (lec != (b_nvram & ec_mask)) { | |
7133 | /* NVRAM needs update */ | |
7134 | b_nvram &= ~ec_mask; | |
7135 | b_nvram |= lec; | |
7136 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
7137 | dbg_printk(TPACPI_DBG_MIXER, | |
7138 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
7139 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 7140 | } else { |
329e4e18 HMH |
7141 | vdbg_printk(TPACPI_DBG_MIXER, |
7142 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
7143 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
7144 | } |
7145 | ||
329e4e18 HMH |
7146 | unlock: |
7147 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
7148 | } |
7149 | ||
329e4e18 | 7150 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 7151 | { |
329e4e18 | 7152 | u8 s; |
78f81cc4 | 7153 | |
329e4e18 HMH |
7154 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
7155 | return -EIO; | |
78f81cc4 | 7156 | |
329e4e18 | 7157 | *status = s; |
1da177e4 | 7158 | |
329e4e18 | 7159 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 7160 | |
329e4e18 HMH |
7161 | return 0; |
7162 | } | |
78f81cc4 | 7163 | |
329e4e18 HMH |
7164 | static int volume_get_status(u8 *status) |
7165 | { | |
7166 | return volume_get_status_ec(status); | |
7167 | } | |
78f81cc4 | 7168 | |
329e4e18 HMH |
7169 | static int volume_set_status_ec(const u8 status) |
7170 | { | |
7171 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
7172 | return -EIO; | |
78f81cc4 | 7173 | |
329e4e18 HMH |
7174 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
7175 | ||
9a417ec0 AL |
7176 | /* |
7177 | * On X200s, and possibly on others, it can take a while for | |
7178 | * reads to become correct. | |
7179 | */ | |
7180 | msleep(1); | |
7181 | ||
329e4e18 HMH |
7182 | return 0; |
7183 | } | |
7184 | ||
7185 | static int volume_set_status(const u8 status) | |
7186 | { | |
7187 | return volume_set_status_ec(status); | |
7188 | } | |
7189 | ||
88cc8377 HMH |
7190 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7191 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
7192 | { |
7193 | int rc; | |
7194 | u8 s, n; | |
7195 | ||
7196 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7197 | return -EINTR; | |
7198 | ||
7199 | rc = volume_get_status_ec(&s); | |
7200 | if (rc) | |
7201 | goto unlock; | |
7202 | ||
7203 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
7204 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
7205 | ||
88cc8377 | 7206 | if (n != s) { |
329e4e18 | 7207 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7208 | if (!rc) |
7209 | rc = 1; | |
7210 | } | |
329e4e18 HMH |
7211 | |
7212 | unlock: | |
7213 | mutex_unlock(&volume_mutex); | |
7214 | return rc; | |
7215 | } | |
7216 | ||
88cc8377 HMH |
7217 | static int volume_alsa_set_mute(const bool mute) |
7218 | { | |
7219 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
7220 | (mute) ? "" : "un"); | |
7221 | return __volume_set_mute_ec(mute); | |
7222 | } | |
7223 | ||
329e4e18 HMH |
7224 | static int volume_set_mute(const bool mute) |
7225 | { | |
88cc8377 HMH |
7226 | int rc; |
7227 | ||
329e4e18 HMH |
7228 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
7229 | (mute) ? "" : "un"); | |
88cc8377 HMH |
7230 | |
7231 | rc = __volume_set_mute_ec(mute); | |
7232 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
7233 | } |
7234 | ||
88cc8377 HMH |
7235 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7236 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
7237 | { |
7238 | int rc; | |
7239 | u8 s, n; | |
7240 | ||
7241 | if (vol > TP_EC_VOLUME_MAX) | |
7242 | return -EINVAL; | |
7243 | ||
7244 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7245 | return -EINTR; | |
7246 | ||
7247 | rc = volume_get_status_ec(&s); | |
7248 | if (rc) | |
7249 | goto unlock; | |
7250 | ||
7251 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
7252 | ||
88cc8377 | 7253 | if (n != s) { |
329e4e18 | 7254 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7255 | if (!rc) |
7256 | rc = 1; | |
7257 | } | |
329e4e18 HMH |
7258 | |
7259 | unlock: | |
7260 | mutex_unlock(&volume_mutex); | |
7261 | return rc; | |
7262 | } | |
7263 | ||
9a417ec0 AL |
7264 | static int volume_set_software_mute(bool startup) |
7265 | { | |
7266 | int result; | |
7267 | ||
7268 | if (!tpacpi_is_lenovo()) | |
7269 | return -ENODEV; | |
7270 | ||
7271 | if (startup) { | |
7272 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
7273 | "HAUM", "qd")) | |
7274 | return -EIO; | |
7275 | ||
7276 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7277 | "Initial HAUM setting was %d\n", | |
7278 | software_mute_orig_mode); | |
7279 | } | |
7280 | ||
7281 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
7282 | (int)TP_EC_MUTE_BTN_NONE)) | |
7283 | return -EIO; | |
7284 | ||
7285 | if (result != TP_EC_MUTE_BTN_NONE) | |
7286 | pr_warn("Unexpected SAUM result %d\n", | |
7287 | result); | |
7288 | ||
7289 | /* | |
7290 | * In software mute mode, the standard codec controls take | |
7291 | * precendence, so we unmute the ThinkPad HW switch at | |
7292 | * startup. Just on case there are SAUM-capable ThinkPads | |
7293 | * with level controls, set max HW volume as well. | |
7294 | */ | |
7295 | if (tp_features.mixer_no_level_control) | |
7296 | result = volume_set_mute(false); | |
7297 | else | |
7298 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
7299 | ||
7300 | if (result != 0) | |
7301 | pr_warn("Failed to unmute the HW mute switch\n"); | |
7302 | ||
7303 | return 0; | |
7304 | } | |
7305 | ||
7306 | static void volume_exit_software_mute(void) | |
7307 | { | |
7308 | int r; | |
7309 | ||
7310 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
7311 | || r != software_mute_orig_mode) | |
7312 | pr_warn("Failed to restore mute mode\n"); | |
7313 | } | |
7314 | ||
88cc8377 | 7315 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
7316 | { |
7317 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
7318 | "ALSA: trying to set volume level to %hu\n", vol); |
7319 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
7320 | } |
7321 | ||
0d204c34 HMH |
7322 | static void volume_alsa_notify_change(void) |
7323 | { | |
7324 | struct tpacpi_alsa_data *d; | |
7325 | ||
7326 | if (alsa_card && alsa_card->private_data) { | |
7327 | d = alsa_card->private_data; | |
7328 | if (d->ctl_mute_id) | |
7329 | snd_ctl_notify(alsa_card, | |
7330 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7331 | d->ctl_mute_id); | |
7332 | if (d->ctl_vol_id) | |
7333 | snd_ctl_notify(alsa_card, | |
7334 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7335 | d->ctl_vol_id); | |
7336 | } | |
7337 | } | |
7338 | ||
7339 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7340 | struct snd_ctl_elem_info *uinfo) | |
7341 | { | |
7342 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7343 | uinfo->count = 1; | |
7344 | uinfo->value.integer.min = 0; | |
7345 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7346 | return 0; | |
7347 | } | |
7348 | ||
7349 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7350 | struct snd_ctl_elem_value *ucontrol) | |
7351 | { | |
7352 | u8 s; | |
7353 | int rc; | |
7354 | ||
7355 | rc = volume_get_status(&s); | |
7356 | if (rc < 0) | |
7357 | return rc; | |
7358 | ||
7359 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7360 | return 0; | |
7361 | } | |
7362 | ||
7363 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7364 | struct snd_ctl_elem_value *ucontrol) | |
7365 | { | |
38e11cde HMH |
7366 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7367 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7368 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7369 | } |
7370 | ||
7371 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7372 | ||
7373 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7374 | struct snd_ctl_elem_value *ucontrol) | |
7375 | { | |
7376 | u8 s; | |
7377 | int rc; | |
7378 | ||
7379 | rc = volume_get_status(&s); | |
7380 | if (rc < 0) | |
7381 | return rc; | |
7382 | ||
7383 | ucontrol->value.integer.value[0] = | |
7384 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7385 | return 0; | |
7386 | } | |
7387 | ||
7388 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7389 | struct snd_ctl_elem_value *ucontrol) | |
7390 | { | |
38e11cde HMH |
7391 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7392 | ucontrol->value.integer.value[0] ? | |
7393 | "un" : ""); | |
88cc8377 | 7394 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7395 | } |
7396 | ||
c3aa4723 | 7397 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7398 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7399 | .name = "Console Playback Volume", | |
7400 | .index = 0, | |
7401 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7402 | .info = volume_alsa_vol_info, | |
7403 | .get = volume_alsa_vol_get, | |
7404 | }; | |
7405 | ||
c3aa4723 | 7406 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7407 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7408 | .name = "Console Playback Switch", | |
7409 | .index = 0, | |
7410 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7411 | .info = volume_alsa_mute_info, | |
7412 | .get = volume_alsa_mute_get, | |
7413 | }; | |
7414 | ||
fd3c3a42 | 7415 | static void volume_suspend(void) |
329e4e18 HMH |
7416 | { |
7417 | tpacpi_volume_checkpoint_nvram(); | |
7418 | } | |
7419 | ||
0d204c34 HMH |
7420 | static void volume_resume(void) |
7421 | { | |
9a417ec0 AL |
7422 | if (software_mute_active) { |
7423 | if (volume_set_software_mute(false) < 0) | |
7424 | pr_warn("Failed to restore software mute\n"); | |
7425 | } else { | |
7426 | volume_alsa_notify_change(); | |
7427 | } | |
0d204c34 HMH |
7428 | } |
7429 | ||
329e4e18 HMH |
7430 | static void volume_shutdown(void) |
7431 | { | |
7432 | tpacpi_volume_checkpoint_nvram(); | |
7433 | } | |
7434 | ||
7435 | static void volume_exit(void) | |
7436 | { | |
0d204c34 HMH |
7437 | if (alsa_card) { |
7438 | snd_card_free(alsa_card); | |
7439 | alsa_card = NULL; | |
7440 | } | |
7441 | ||
329e4e18 | 7442 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7443 | |
7444 | if (software_mute_active) | |
7445 | volume_exit_software_mute(); | |
329e4e18 HMH |
7446 | } |
7447 | ||
0d204c34 HMH |
7448 | static int __init volume_create_alsa_mixer(void) |
7449 | { | |
7450 | struct snd_card *card; | |
7451 | struct tpacpi_alsa_data *data; | |
7452 | struct snd_kcontrol *ctl_vol; | |
7453 | struct snd_kcontrol *ctl_mute; | |
7454 | int rc; | |
7455 | ||
89235e55 TI |
7456 | rc = snd_card_new(&tpacpi_pdev->dev, |
7457 | alsa_index, alsa_id, THIS_MODULE, | |
7458 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7459 | if (rc < 0 || !card) { |
0978e012 | 7460 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7461 | return 1; |
7462 | } | |
0d204c34 HMH |
7463 | |
7464 | BUG_ON(!card->private_data); | |
7465 | data = card->private_data; | |
7466 | data->card = card; | |
7467 | ||
7468 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7469 | sizeof(card->driver)); | |
7470 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7471 | sizeof(card->shortname)); | |
7472 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7473 | (thinkpad_id.ec_version_str) ? | |
7474 | thinkpad_id.ec_version_str : "(unknown)"); | |
7475 | snprintf(card->longname, sizeof(card->longname), | |
7476 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7477 | (thinkpad_id.ec_version_str) ? | |
7478 | thinkpad_id.ec_version_str : "unknown"); | |
7479 | ||
7480 | if (volume_control_allowed) { | |
7481 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7482 | volume_alsa_control_vol.access = | |
7483 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7484 | ||
7485 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7486 | volume_alsa_control_mute.access = | |
7487 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7488 | } | |
7489 | ||
7490 | if (!tp_features.mixer_no_level_control) { | |
7491 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7492 | rc = snd_ctl_add(card, ctl_vol); | |
7493 | if (rc < 0) { | |
0978e012 JP |
7494 | pr_err("Failed to create ALSA volume control: %d\n", |
7495 | rc); | |
74c75c18 | 7496 | goto err_exit; |
78f81cc4 | 7497 | } |
0d204c34 HMH |
7498 | data->ctl_vol_id = &ctl_vol->id; |
7499 | } | |
78f81cc4 | 7500 | |
0d204c34 HMH |
7501 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7502 | rc = snd_ctl_add(card, ctl_mute); | |
7503 | if (rc < 0) { | |
0978e012 | 7504 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7505 | goto err_exit; |
0d204c34 HMH |
7506 | } |
7507 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7508 | |
0d204c34 | 7509 | rc = snd_card_register(card); |
0d204c34 | 7510 | if (rc < 0) { |
0978e012 | 7511 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7512 | goto err_exit; |
0d204c34 HMH |
7513 | } |
7514 | ||
7515 | alsa_card = card; | |
74c75c18 HMH |
7516 | return 0; |
7517 | ||
7518 | err_exit: | |
7519 | snd_card_free(card); | |
7520 | return 1; | |
0d204c34 HMH |
7521 | } |
7522 | ||
a112ceee HMH |
7523 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7524 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7525 | ||
7526 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7527 | /* Whitelist volume level on all IBM by default */ | |
7528 | { .vendor = PCI_VENDOR_ID_IBM, | |
7529 | .bios = TPACPI_MATCH_ANY, | |
7530 | .ec = TPACPI_MATCH_ANY, | |
7531 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7532 | ||
7533 | /* Lenovo models with volume control (needs confirmation) */ | |
7534 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7535 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7536 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7537 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7538 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7539 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7540 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7541 | ||
7542 | /* Whitelist mute-only on all Lenovo by default */ | |
7543 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7544 | .bios = TPACPI_MATCH_ANY, | |
7545 | .ec = TPACPI_MATCH_ANY, | |
7546 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7547 | }; | |
7548 | ||
329e4e18 HMH |
7549 | static int __init volume_init(struct ibm_init_struct *iibm) |
7550 | { | |
a112ceee | 7551 | unsigned long quirks; |
0d204c34 | 7552 | int rc; |
a112ceee | 7553 | |
329e4e18 HMH |
7554 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7555 | ||
7556 | mutex_init(&volume_mutex); | |
7557 | ||
7558 | /* | |
7559 | * Check for module parameter bogosity, note that we | |
7560 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7561 | * able to detect "unspecified" | |
7562 | */ | |
7563 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7564 | return -EINVAL; | |
7565 | ||
7566 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
0978e012 JP |
7567 | pr_err("UCMS step volume mode not implemented, " |
7568 | "please contact %s\n", TPACPI_MAIL); | |
329e4e18 HMH |
7569 | return 1; |
7570 | } | |
7571 | ||
a112ceee HMH |
7572 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7573 | return -EINVAL; | |
7574 | ||
0d204c34 HMH |
7575 | /* |
7576 | * The ALSA mixer is our primary interface. | |
7577 | * When disabled, don't install the subdriver at all | |
7578 | */ | |
7579 | if (!alsa_enable) { | |
7580 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7581 | "ALSA mixer disabled by parameter, " | |
7582 | "not loading volume subdriver...\n"); | |
7583 | return 1; | |
7584 | } | |
7585 | ||
a112ceee HMH |
7586 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7587 | ARRAY_SIZE(volume_quirk_table)); | |
7588 | ||
7589 | switch (volume_capabilities) { | |
7590 | case TPACPI_VOL_CAP_AUTO: | |
7591 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7592 | tp_features.mixer_no_level_control = 1; | |
7593 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7594 | tp_features.mixer_no_level_control = 0; | |
7595 | else | |
7596 | return 1; /* no mixer */ | |
7597 | break; | |
7598 | case TPACPI_VOL_CAP_VOLMUTE: | |
7599 | tp_features.mixer_no_level_control = 0; | |
7600 | break; | |
7601 | case TPACPI_VOL_CAP_MUTEONLY: | |
7602 | tp_features.mixer_no_level_control = 1; | |
7603 | break; | |
7604 | default: | |
7605 | return 1; | |
7606 | } | |
7607 | ||
7608 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7609 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7610 | "using user-supplied volume_capabilities=%d\n", | |
7611 | volume_capabilities); | |
7612 | ||
329e4e18 HMH |
7613 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7614 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7615 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7616 | ||
7617 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7618 | "driver auto-selected volume_mode=%d\n", | |
7619 | volume_mode); | |
7620 | } else { | |
7621 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7622 | "using user-supplied volume_mode=%d\n", | |
7623 | volume_mode); | |
7624 | } | |
7625 | ||
7626 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7627 | "mute is supported, volume control is %s\n", |
7628 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7629 | |
9a417ec0 AL |
7630 | if (software_mute_requested && volume_set_software_mute(true) == 0) { |
7631 | software_mute_active = true; | |
7632 | } else { | |
7633 | rc = volume_create_alsa_mixer(); | |
7634 | if (rc) { | |
7635 | pr_err("Could not create the ALSA mixer interface\n"); | |
7636 | return rc; | |
7637 | } | |
0d204c34 | 7638 | |
9a417ec0 AL |
7639 | pr_info("Console audio control enabled, mode: %s\n", |
7640 | (volume_control_allowed) ? | |
7641 | "override (read/write)" : | |
7642 | "monitor (read only)"); | |
7643 | } | |
c7ac6291 | 7644 | |
0d204c34 HMH |
7645 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7646 | "registering volume hotkeys as change notification\n"); | |
7647 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7648 | | TP_ACPI_HKEY_VOLUP_MASK | |
7649 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7650 | | TP_ACPI_HKEY_MUTE_MASK); | |
7651 | ||
329e4e18 HMH |
7652 | return 0; |
7653 | } | |
f74a27d4 | 7654 | |
887965e6 | 7655 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7656 | { |
329e4e18 | 7657 | u8 status; |
78f81cc4 | 7658 | |
329e4e18 | 7659 | if (volume_get_status(&status) < 0) { |
887965e6 | 7660 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7661 | } else { |
a112ceee | 7662 | if (tp_features.mixer_no_level_control) |
887965e6 | 7663 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7664 | else |
887965e6 | 7665 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7666 | status & TP_EC_AUDIO_LVL_MSK); |
7667 | ||
887965e6 | 7668 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7669 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7670 | |
c7ac6291 | 7671 | if (volume_control_allowed) { |
887965e6 | 7672 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7673 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 7674 | seq_printf(m, |
c7ac6291 | 7675 | "commands:\tup, down\n"); |
887965e6 | 7676 | seq_printf(m, |
c7ac6291 HMH |
7677 | "commands:\tlevel <level>" |
7678 | " (<level> is 0-%d)\n", | |
7679 | TP_EC_VOLUME_MAX); | |
7680 | } | |
78f81cc4 BD |
7681 | } |
7682 | } | |
7683 | ||
7684 | return 0; | |
7685 | } | |
7686 | ||
78f81cc4 BD |
7687 | static int volume_write(char *buf) |
7688 | { | |
329e4e18 HMH |
7689 | u8 s; |
7690 | u8 new_level, new_mute; | |
7691 | int l; | |
78f81cc4 | 7692 | char *cmd; |
329e4e18 | 7693 | int rc; |
78f81cc4 | 7694 | |
c7ac6291 HMH |
7695 | /* |
7696 | * We do allow volume control at driver startup, so that the | |
7697 | * user can set initial state through the volume=... parameter hack. | |
7698 | */ | |
7699 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7700 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7701 | tp_warned.volume_ctrl_forbidden = 1; | |
0978e012 JP |
7702 | pr_notice("Console audio control in monitor mode, " |
7703 | "changes are not allowed\n"); | |
7704 | pr_notice("Use the volume_control=1 module parameter " | |
7705 | "to enable volume control\n"); | |
c7ac6291 HMH |
7706 | } |
7707 | return -EPERM; | |
7708 | } | |
7709 | ||
329e4e18 HMH |
7710 | rc = volume_get_status(&s); |
7711 | if (rc < 0) | |
7712 | return rc; | |
78f81cc4 | 7713 | |
329e4e18 HMH |
7714 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7715 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7716 | ||
7717 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7718 | if (!tp_features.mixer_no_level_control) { |
7719 | if (strlencmp(cmd, "up") == 0) { | |
7720 | if (new_mute) | |
7721 | new_mute = 0; | |
7722 | else if (new_level < TP_EC_VOLUME_MAX) | |
7723 | new_level++; | |
7724 | continue; | |
7725 | } else if (strlencmp(cmd, "down") == 0) { | |
7726 | if (new_mute) | |
7727 | new_mute = 0; | |
7728 | else if (new_level > 0) | |
7729 | new_level--; | |
7730 | continue; | |
7731 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7732 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7733 | new_level = l; | |
7734 | continue; | |
7735 | } | |
7736 | } | |
7737 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7738 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7739 | else if (strlencmp(cmd, "unmute") == 0) |
7740 | new_mute = 0; | |
7741 | else | |
1da177e4 | 7742 | return -EINVAL; |
329e4e18 | 7743 | } |
1da177e4 | 7744 | |
a112ceee HMH |
7745 | if (tp_features.mixer_no_level_control) { |
7746 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7747 | new_mute ? "" : "un"); | |
7748 | rc = volume_set_mute(!!new_mute); | |
7749 | } else { | |
7750 | tpacpi_disclose_usertask("procfs volume", | |
7751 | "%smute and set level to %d\n", | |
7752 | new_mute ? "" : "un", new_level); | |
7753 | rc = volume_set_status(new_mute | new_level); | |
7754 | } | |
0d204c34 | 7755 | volume_alsa_notify_change(); |
78f81cc4 | 7756 | |
329e4e18 | 7757 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7758 | } |
7759 | ||
a5763f22 HMH |
7760 | static struct ibm_struct volume_driver_data = { |
7761 | .name = "volume", | |
7762 | .read = volume_read, | |
7763 | .write = volume_write, | |
329e4e18 HMH |
7764 | .exit = volume_exit, |
7765 | .suspend = volume_suspend, | |
0d204c34 | 7766 | .resume = volume_resume, |
329e4e18 | 7767 | .shutdown = volume_shutdown, |
a5763f22 | 7768 | }; |
56b6aeb0 | 7769 | |
ff850c33 HMH |
7770 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7771 | ||
7772 | #define alsa_card NULL | |
7773 | ||
bb55a2ee | 7774 | static inline void volume_alsa_notify_change(void) |
ff850c33 HMH |
7775 | { |
7776 | } | |
7777 | ||
7778 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7779 | { | |
0978e012 | 7780 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7781 | |
7782 | return 1; | |
7783 | } | |
7784 | ||
7785 | static struct ibm_struct volume_driver_data = { | |
7786 | .name = "volume", | |
7787 | }; | |
7788 | ||
7789 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7790 | ||
56b6aeb0 HMH |
7791 | /************************************************************************* |
7792 | * Fan subdriver | |
7793 | */ | |
7794 | ||
7795 | /* | |
7796 | * FAN ACCESS MODES | |
7797 | * | |
efa27145 | 7798 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7799 | * ACPI GFAN method: returns fan level |
7800 | * | |
efa27145 | 7801 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7802 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7803 | * |
efa27145 | 7804 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7805 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7806 | * | |
f51d1a39 HMH |
7807 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7808 | * it for writing. | |
56b6aeb0 | 7809 | * |
efa27145 | 7810 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7811 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7812 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7813 | * |
7814 | * Fan speed changes of any sort (including those caused by the | |
7815 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7816 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7817 | * limited. |
7818 | * | |
7819 | * Reading is not available if GFAN exists. | |
7820 | * Writing is not available if SFAN exists. | |
7821 | * | |
7822 | * Bits | |
7823 | * 7 automatic mode engaged; | |
7824 | * (default operation mode of the ThinkPad) | |
7825 | * fan level is ignored in this mode. | |
f51d1a39 | 7826 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7827 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7828 | * the tachometer while the fan controller ramps up |
7829 | * the speed (which can take up to a few *minutes*). | |
7830 | * Speeds up fan to 100% duty-cycle, which is far above | |
7831 | * the standard RPM levels. It is not impossible that | |
7832 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7833 | * 5-3 unused in some models. Extra bits for fan level |
7834 | * in others, but still useless as all values above | |
7835 | * 7 map to the same speed as level 7 in these models. | |
7836 | * 2-0 fan level (0..7 usually) | |
7837 | * 0x00 = stop | |
7838 | * 0x07 = max (set when temperatures critical) | |
7839 | * Some ThinkPads may have other levels, see | |
efa27145 | 7840 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7841 | * |
7842 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7843 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7844 | * does so, its initial value is meaningless (0x07). |
7845 | * | |
7846 | * For firmware bugs, refer to: | |
7847 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7848 | * | |
7849 | * ---- | |
7850 | * | |
7851 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7852 | * Main fan tachometer reading (in RPM) | |
7853 | * | |
7854 | * This register is present on all ThinkPads with a new-style EC, and | |
7855 | * it is known not to be present on the A21m/e, and T22, as there is | |
7856 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7857 | * ThinkPads from this same time period (and earlier) probably lack the | |
7858 | * tachometer as well. | |
7859 | * | |
877d0310 | 7860 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7861 | * was never fixed by IBM to report the EC firmware version string |
7862 | * probably support the tachometer (like the early X models), so | |
7863 | * detecting it is quite hard. We need more data to know for sure. | |
7864 | * | |
7865 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7866 | * might result. | |
7867 | * | |
f51d1a39 HMH |
7868 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7869 | * mode. | |
56b6aeb0 HMH |
7870 | * |
7871 | * For firmware bugs, refer to: | |
7872 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7873 | * | |
d7377247 HMH |
7874 | * ---- |
7875 | * | |
7876 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7877 | * | |
7878 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7879 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7880 | * is one, the tachometer registers show the speed of the auxiliary | |
7881 | * fan. | |
7882 | * | |
7883 | * Fan control seems to affect both fans, regardless of the state | |
7884 | * of this bit. | |
7885 | * | |
7886 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7887 | * seem to support this (firmware TP-7M). | |
7888 | * | |
efa27145 | 7889 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7890 | * ThinkPad X31, X40, X41. Not available in the X60. |
7891 | * | |
7892 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7893 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7894 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7895 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7896 | * | |
7897 | * The speeds are stored on handles | |
7898 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7899 | * | |
af901ca1 | 7900 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7901 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7902 | * | |
7903 | * ACPI DSDT switches which set is in use depending on various | |
7904 | * factors. | |
7905 | * | |
efa27145 | 7906 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7907 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7908 | * but the ACPI tables just mention level 7. | |
7909 | */ | |
7910 | ||
f74a27d4 HMH |
7911 | enum { /* Fan control constants */ |
7912 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7913 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7914 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7915 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7916 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7917 | |
7918 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7919 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7920 | ||
7921 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7922 | }; | |
7923 | ||
7924 | enum fan_status_access_mode { | |
7925 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7926 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7927 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7928 | }; | |
7929 | ||
7930 | enum fan_control_access_mode { | |
7931 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7932 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7933 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7934 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7935 | }; | |
7936 | ||
7937 | enum fan_control_commands { | |
7938 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7939 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7940 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7941 | * and also watchdog cmd */ | |
7942 | }; | |
7943 | ||
90ab5ee9 | 7944 | static bool fan_control_allowed; |
f74a27d4 | 7945 | |
69ba91cb HMH |
7946 | static enum fan_status_access_mode fan_status_access_mode; |
7947 | static enum fan_control_access_mode fan_control_access_mode; | |
7948 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7949 | |
778b4d74 | 7950 | static u8 fan_control_initial_status; |
fe98a52c | 7951 | static u8 fan_control_desired_level; |
0081b162 | 7952 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7953 | static int fan_watchdog_maxinterval; |
7954 | ||
7955 | static struct mutex fan_mutex; | |
778b4d74 | 7956 | |
25c68a33 | 7957 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7958 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7959 | |
e0c7dfe7 HMH |
7960 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7961 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7962 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7963 | ); /* all others */ | |
e0c7dfe7 | 7964 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7965 | "JFNS", /* 770x-JL */ |
7966 | ); /* all others */ | |
7967 | ||
1c2ece75 HMH |
7968 | /* |
7969 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7970 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7971 | * be in auto mode (0x80). | |
7972 | * | |
7973 | * This is corrected by any write to HFSP either by the driver, or | |
7974 | * by the firmware. | |
7975 | * | |
7976 | * We assume 0x07 really means auto mode while this quirk is active, | |
7977 | * as this is far more likely than the ThinkPad being in level 7, | |
7978 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7979 | * |
7980 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7981 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7982 | */ |
7983 | ||
7d95a3d5 | 7984 | static void fan_quirk1_setup(void) |
1c2ece75 | 7985 | { |
1c2ece75 | 7986 | if (fan_control_initial_status == 0x07) { |
0978e012 JP |
7987 | pr_notice("fan_init: initial fan status is unknown, " |
7988 | "assuming it is in auto mode\n"); | |
7d95a3d5 | 7989 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
7990 | } |
7991 | } | |
7992 | ||
7993 | static void fan_quirk1_handle(u8 *fan_status) | |
7994 | { | |
7995 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7996 | if (*fan_status != fan_control_initial_status) { | |
7997 | /* something changed the HFSP regisnter since | |
7998 | * driver init time, so it is not undefined | |
7999 | * anymore */ | |
8000 | tp_features.fan_ctrl_status_undef = 0; | |
8001 | } else { | |
8002 | /* Return most likely status. In fact, it | |
8003 | * might be the only possible status */ | |
8004 | *fan_status = TP_EC_FAN_AUTO; | |
8005 | } | |
8006 | } | |
8007 | } | |
8008 | ||
d7377247 HMH |
8009 | /* Select main fan on X60/X61, NOOP on others */ |
8010 | static bool fan_select_fan1(void) | |
8011 | { | |
8012 | if (tp_features.second_fan) { | |
8013 | u8 val; | |
8014 | ||
8015 | if (ec_read(fan_select_offset, &val) < 0) | |
8016 | return false; | |
8017 | val &= 0xFEU; | |
8018 | if (ec_write(fan_select_offset, val) < 0) | |
8019 | return false; | |
8020 | } | |
8021 | return true; | |
8022 | } | |
8023 | ||
8024 | /* Select secondary fan on X60/X61 */ | |
8025 | static bool fan_select_fan2(void) | |
8026 | { | |
8027 | u8 val; | |
8028 | ||
8029 | if (!tp_features.second_fan) | |
8030 | return false; | |
8031 | ||
8032 | if (ec_read(fan_select_offset, &val) < 0) | |
8033 | return false; | |
8034 | val |= 0x01U; | |
8035 | if (ec_write(fan_select_offset, val) < 0) | |
8036 | return false; | |
8037 | ||
8038 | return true; | |
8039 | } | |
8040 | ||
fe98a52c | 8041 | /* |
b21a15f6 | 8042 | * Call with fan_mutex held |
fe98a52c | 8043 | */ |
b21a15f6 | 8044 | static void fan_update_desired_level(u8 status) |
fe98a52c | 8045 | { |
b21a15f6 HMH |
8046 | if ((status & |
8047 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8048 | if (status > 7) | |
8049 | fan_control_desired_level = 7; | |
8050 | else | |
8051 | fan_control_desired_level = status; | |
8052 | } | |
8053 | } | |
fe98a52c | 8054 | |
b21a15f6 HMH |
8055 | static int fan_get_status(u8 *status) |
8056 | { | |
8057 | u8 s; | |
fe98a52c | 8058 | |
b21a15f6 HMH |
8059 | /* TODO: |
8060 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 8061 | |
b21a15f6 | 8062 | switch (fan_status_access_mode) { |
eceeb437 | 8063 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 8064 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 8065 | int res; |
fe98a52c | 8066 | |
eceeb437 | 8067 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 8068 | return -EIO; |
fe98a52c | 8069 | |
b21a15f6 | 8070 | if (likely(status)) |
eceeb437 | 8071 | *status = res & 0x07; |
fe98a52c | 8072 | |
b21a15f6 | 8073 | break; |
eceeb437 | 8074 | } |
b21a15f6 HMH |
8075 | case TPACPI_FAN_RD_TPEC: |
8076 | /* all except 570, 600e/x, 770e, 770x */ | |
8077 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
8078 | return -EIO; | |
8079 | ||
1c2ece75 | 8080 | if (likely(status)) { |
b21a15f6 | 8081 | *status = s; |
1c2ece75 HMH |
8082 | fan_quirk1_handle(status); |
8083 | } | |
fe98a52c | 8084 | |
fe98a52c | 8085 | break; |
b21a15f6 | 8086 | |
fe98a52c | 8087 | default: |
b21a15f6 | 8088 | return -ENXIO; |
fe98a52c HMH |
8089 | } |
8090 | ||
b21a15f6 HMH |
8091 | return 0; |
8092 | } | |
fe98a52c | 8093 | |
b21a15f6 HMH |
8094 | static int fan_get_status_safe(u8 *status) |
8095 | { | |
8096 | int rc; | |
8097 | u8 s; | |
fe98a52c | 8098 | |
7646ea88 | 8099 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
8100 | return -ERESTARTSYS; |
8101 | rc = fan_get_status(&s); | |
8102 | if (!rc) | |
8103 | fan_update_desired_level(s); | |
8104 | mutex_unlock(&fan_mutex); | |
fe98a52c | 8105 | |
a7718360 DC |
8106 | if (rc) |
8107 | return rc; | |
b21a15f6 HMH |
8108 | if (status) |
8109 | *status = s; | |
fe98a52c | 8110 | |
a7718360 | 8111 | return 0; |
b21a15f6 HMH |
8112 | } |
8113 | ||
8114 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 8115 | { |
b21a15f6 | 8116 | u8 hi, lo; |
fe98a52c | 8117 | |
b21a15f6 HMH |
8118 | switch (fan_status_access_mode) { |
8119 | case TPACPI_FAN_RD_TPEC: | |
8120 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
8121 | if (unlikely(!fan_select_fan1())) |
8122 | return -EIO; | |
b21a15f6 HMH |
8123 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
8124 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
8125 | return -EIO; | |
fe98a52c | 8126 | |
b21a15f6 HMH |
8127 | if (likely(speed)) |
8128 | *speed = (hi << 8) | lo; | |
fe98a52c | 8129 | |
b21a15f6 | 8130 | break; |
fe98a52c | 8131 | |
b21a15f6 HMH |
8132 | default: |
8133 | return -ENXIO; | |
8134 | } | |
fe98a52c | 8135 | |
b21a15f6 | 8136 | return 0; |
fe98a52c HMH |
8137 | } |
8138 | ||
d7377247 HMH |
8139 | static int fan2_get_speed(unsigned int *speed) |
8140 | { | |
8141 | u8 hi, lo; | |
8142 | bool rc; | |
8143 | ||
8144 | switch (fan_status_access_mode) { | |
8145 | case TPACPI_FAN_RD_TPEC: | |
8146 | /* all except 570, 600e/x, 770e, 770x */ | |
8147 | if (unlikely(!fan_select_fan2())) | |
8148 | return -EIO; | |
8149 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
8150 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
8151 | fan_select_fan1(); /* play it safe */ | |
8152 | if (rc) | |
8153 | return -EIO; | |
8154 | ||
8155 | if (likely(speed)) | |
8156 | *speed = (hi << 8) | lo; | |
8157 | ||
8158 | break; | |
8159 | ||
8160 | default: | |
8161 | return -ENXIO; | |
8162 | } | |
8163 | ||
8164 | return 0; | |
8165 | } | |
8166 | ||
b21a15f6 | 8167 | static int fan_set_level(int level) |
fe98a52c | 8168 | { |
b21a15f6 HMH |
8169 | if (!fan_control_allowed) |
8170 | return -EPERM; | |
fe98a52c | 8171 | |
b21a15f6 HMH |
8172 | switch (fan_control_access_mode) { |
8173 | case TPACPI_FAN_WR_ACPI_SFAN: | |
8174 | if (level >= 0 && level <= 7) { | |
8175 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
8176 | return -EIO; | |
8177 | } else | |
8178 | return -EINVAL; | |
8179 | break; | |
fe98a52c | 8180 | |
b21a15f6 HMH |
8181 | case TPACPI_FAN_WR_ACPI_FANS: |
8182 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8183 | if (!(level & TP_EC_FAN_AUTO) && |
8184 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
8185 | ((level < 0) || (level > 7))) |
8186 | return -EINVAL; | |
fe98a52c | 8187 | |
b21a15f6 HMH |
8188 | /* safety net should the EC not support AUTO |
8189 | * or FULLSPEED mode bits and just ignore them */ | |
8190 | if (level & TP_EC_FAN_FULLSPEED) | |
8191 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 8192 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 8193 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 8194 | |
b21a15f6 HMH |
8195 | if (!acpi_ec_write(fan_status_offset, level)) |
8196 | return -EIO; | |
8197 | else | |
8198 | tp_features.fan_ctrl_status_undef = 0; | |
8199 | break; | |
fe98a52c | 8200 | |
b21a15f6 HMH |
8201 | default: |
8202 | return -ENXIO; | |
8203 | } | |
74a60c0f HMH |
8204 | |
8205 | vdbg_printk(TPACPI_DBG_FAN, | |
8206 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 8207 | return 0; |
fe98a52c HMH |
8208 | } |
8209 | ||
b21a15f6 | 8210 | static int fan_set_level_safe(int level) |
fe98a52c | 8211 | { |
b21a15f6 | 8212 | int rc; |
fe98a52c | 8213 | |
b21a15f6 HMH |
8214 | if (!fan_control_allowed) |
8215 | return -EPERM; | |
fe98a52c | 8216 | |
7646ea88 | 8217 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8218 | return -ERESTARTSYS; |
fe98a52c | 8219 | |
b21a15f6 HMH |
8220 | if (level == TPACPI_FAN_LAST_LEVEL) |
8221 | level = fan_control_desired_level; | |
fe98a52c | 8222 | |
b21a15f6 HMH |
8223 | rc = fan_set_level(level); |
8224 | if (!rc) | |
8225 | fan_update_desired_level(level); | |
8226 | ||
8227 | mutex_unlock(&fan_mutex); | |
8228 | return rc; | |
fe98a52c HMH |
8229 | } |
8230 | ||
b21a15f6 | 8231 | static int fan_set_enable(void) |
fe98a52c | 8232 | { |
b21a15f6 HMH |
8233 | u8 s; |
8234 | int rc; | |
fe98a52c | 8235 | |
ecf2a80a HMH |
8236 | if (!fan_control_allowed) |
8237 | return -EPERM; | |
8238 | ||
7646ea88 | 8239 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8240 | return -ERESTARTSYS; |
fe98a52c | 8241 | |
b21a15f6 HMH |
8242 | switch (fan_control_access_mode) { |
8243 | case TPACPI_FAN_WR_ACPI_FANS: | |
8244 | case TPACPI_FAN_WR_TPEC: | |
8245 | rc = fan_get_status(&s); | |
8246 | if (rc < 0) | |
8247 | break; | |
fe98a52c | 8248 | |
b21a15f6 HMH |
8249 | /* Don't go out of emergency fan mode */ |
8250 | if (s != 7) { | |
8251 | s &= 0x07; | |
8252 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
8253 | } | |
fe98a52c | 8254 | |
b21a15f6 HMH |
8255 | if (!acpi_ec_write(fan_status_offset, s)) |
8256 | rc = -EIO; | |
8257 | else { | |
8258 | tp_features.fan_ctrl_status_undef = 0; | |
8259 | rc = 0; | |
8260 | } | |
8261 | break; | |
fe98a52c | 8262 | |
b21a15f6 HMH |
8263 | case TPACPI_FAN_WR_ACPI_SFAN: |
8264 | rc = fan_get_status(&s); | |
8265 | if (rc < 0) | |
8266 | break; | |
fe98a52c | 8267 | |
b21a15f6 | 8268 | s &= 0x07; |
fe98a52c | 8269 | |
b21a15f6 HMH |
8270 | /* Set fan to at least level 4 */ |
8271 | s |= 4; | |
fe08bc4b | 8272 | |
b21a15f6 | 8273 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 8274 | rc = -EIO; |
b21a15f6 HMH |
8275 | else |
8276 | rc = 0; | |
8277 | break; | |
78f81cc4 | 8278 | |
b21a15f6 HMH |
8279 | default: |
8280 | rc = -ENXIO; | |
8281 | } | |
5fba344c | 8282 | |
b21a15f6 | 8283 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
8284 | |
8285 | if (!rc) | |
8286 | vdbg_printk(TPACPI_DBG_FAN, | |
8287 | "fan control: set fan control register to 0x%02x\n", | |
8288 | s); | |
b21a15f6 | 8289 | return rc; |
69ba91cb | 8290 | } |
78f81cc4 | 8291 | |
b21a15f6 | 8292 | static int fan_set_disable(void) |
78f81cc4 | 8293 | { |
b21a15f6 | 8294 | int rc; |
c52f0aa5 | 8295 | |
b21a15f6 HMH |
8296 | if (!fan_control_allowed) |
8297 | return -EPERM; | |
78f81cc4 | 8298 | |
7646ea88 | 8299 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8300 | return -ERESTARTSYS; |
3ef8a609 | 8301 | |
b21a15f6 HMH |
8302 | rc = 0; |
8303 | switch (fan_control_access_mode) { | |
8304 | case TPACPI_FAN_WR_ACPI_FANS: | |
8305 | case TPACPI_FAN_WR_TPEC: | |
8306 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
8307 | rc = -EIO; | |
8308 | else { | |
8309 | fan_control_desired_level = 0; | |
8310 | tp_features.fan_ctrl_status_undef = 0; | |
8311 | } | |
3ef8a609 HMH |
8312 | break; |
8313 | ||
b21a15f6 HMH |
8314 | case TPACPI_FAN_WR_ACPI_SFAN: |
8315 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
8316 | rc = -EIO; | |
8317 | else | |
8318 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
8319 | break; |
8320 | ||
8321 | default: | |
b21a15f6 | 8322 | rc = -ENXIO; |
78f81cc4 BD |
8323 | } |
8324 | ||
74a60c0f HMH |
8325 | if (!rc) |
8326 | vdbg_printk(TPACPI_DBG_FAN, | |
8327 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 8328 | |
fe98a52c | 8329 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
8330 | return rc; |
8331 | } | |
8332 | ||
b21a15f6 | 8333 | static int fan_set_speed(int speed) |
c52f0aa5 | 8334 | { |
b21a15f6 | 8335 | int rc; |
c52f0aa5 | 8336 | |
b21a15f6 HMH |
8337 | if (!fan_control_allowed) |
8338 | return -EPERM; | |
3ef8a609 | 8339 | |
7646ea88 | 8340 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8341 | return -ERESTARTSYS; |
c52f0aa5 | 8342 | |
b21a15f6 HMH |
8343 | rc = 0; |
8344 | switch (fan_control_access_mode) { | |
8345 | case TPACPI_FAN_WR_ACPI_FANS: | |
8346 | if (speed >= 0 && speed <= 65535) { | |
8347 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8348 | speed, speed, speed)) | |
8349 | rc = -EIO; | |
8350 | } else | |
8351 | rc = -EINVAL; | |
c52f0aa5 HMH |
8352 | break; |
8353 | ||
8354 | default: | |
b21a15f6 | 8355 | rc = -ENXIO; |
c52f0aa5 HMH |
8356 | } |
8357 | ||
b21a15f6 HMH |
8358 | mutex_unlock(&fan_mutex); |
8359 | return rc; | |
16663a87 HMH |
8360 | } |
8361 | ||
8362 | static void fan_watchdog_reset(void) | |
8363 | { | |
4985cd0a HMH |
8364 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8365 | return; | |
8366 | ||
8fef502e | 8367 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8368 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8369 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8370 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8371 | else | |
8372 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8373 | } |
8374 | ||
b21a15f6 | 8375 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8376 | { |
b21a15f6 | 8377 | int rc; |
18ad7996 | 8378 | |
b21a15f6 HMH |
8379 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8380 | return; | |
a12095c2 | 8381 | |
0978e012 | 8382 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8383 | rc = fan_set_enable(); |
8384 | if (rc < 0) { | |
0978e012 JP |
8385 | pr_err("fan watchdog: error %d while enabling fan, " |
8386 | "will try again later...\n", -rc); | |
b21a15f6 HMH |
8387 | /* reschedule for later */ |
8388 | fan_watchdog_reset(); | |
8389 | } | |
8390 | } | |
eaa7571b | 8391 | |
b21a15f6 HMH |
8392 | /* |
8393 | * SYSFS fan layout: hwmon compatible (device) | |
8394 | * | |
8395 | * pwm*_enable: | |
8396 | * 0: "disengaged" mode | |
8397 | * 1: manual mode | |
8398 | * 2: native EC "auto" mode (recommended, hardware default) | |
8399 | * | |
8400 | * pwm*: set speed in manual mode, ignored otherwise. | |
8401 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8402 | * interpolation. | |
8403 | * | |
8404 | * fan*_input: tachometer reading, RPM | |
8405 | * | |
8406 | * | |
8407 | * SYSFS fan layout: extensions | |
8408 | * | |
8409 | * fan_watchdog (driver): | |
8410 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8411 | */ | |
8412 | ||
8413 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8414 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8415 | struct device_attribute *attr, | |
8416 | char *buf) | |
8417 | { | |
8418 | int res, mode; | |
8419 | u8 status; | |
8420 | ||
8421 | res = fan_get_status_safe(&status); | |
8422 | if (res) | |
8423 | return res; | |
8424 | ||
b21a15f6 HMH |
8425 | if (status & TP_EC_FAN_FULLSPEED) { |
8426 | mode = 0; | |
8427 | } else if (status & TP_EC_FAN_AUTO) { | |
8428 | mode = 2; | |
8429 | } else | |
8430 | mode = 1; | |
8431 | ||
8432 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8433 | } | |
a12095c2 | 8434 | |
b21a15f6 HMH |
8435 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8436 | struct device_attribute *attr, | |
8437 | const char *buf, size_t count) | |
8438 | { | |
8439 | unsigned long t; | |
8440 | int res, level; | |
8441 | ||
8442 | if (parse_strtoul(buf, 2, &t)) | |
8443 | return -EINVAL; | |
8444 | ||
74a60c0f HMH |
8445 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8446 | "set fan mode to %lu\n", t); | |
8447 | ||
b21a15f6 HMH |
8448 | switch (t) { |
8449 | case 0: | |
8450 | level = TP_EC_FAN_FULLSPEED; | |
8451 | break; | |
8452 | case 1: | |
8453 | level = TPACPI_FAN_LAST_LEVEL; | |
8454 | break; | |
8455 | case 2: | |
8456 | level = TP_EC_FAN_AUTO; | |
8457 | break; | |
8458 | case 3: | |
8459 | /* reserved for software-controlled auto mode */ | |
8460 | return -ENOSYS; | |
18ad7996 | 8461 | default: |
b21a15f6 | 8462 | return -EINVAL; |
18ad7996 | 8463 | } |
b21a15f6 HMH |
8464 | |
8465 | res = fan_set_level_safe(level); | |
8466 | if (res == -ENXIO) | |
8467 | return -EINVAL; | |
8468 | else if (res < 0) | |
8469 | return res; | |
8470 | ||
8471 | fan_watchdog_reset(); | |
8472 | ||
8473 | return count; | |
18ad7996 HMH |
8474 | } |
8475 | ||
5fb73bc2 BM |
8476 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8477 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8478 | |
8479 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8480 | static ssize_t fan_pwm1_show(struct device *dev, | |
8481 | struct device_attribute *attr, | |
8482 | char *buf) | |
fe98a52c | 8483 | { |
b21a15f6 HMH |
8484 | int res; |
8485 | u8 status; | |
fe98a52c | 8486 | |
b21a15f6 HMH |
8487 | res = fan_get_status_safe(&status); |
8488 | if (res) | |
8489 | return res; | |
ecf2a80a | 8490 | |
b21a15f6 HMH |
8491 | if ((status & |
8492 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8493 | status = fan_control_desired_level; | |
fe98a52c | 8494 | |
b21a15f6 HMH |
8495 | if (status > 7) |
8496 | status = 7; | |
fe98a52c | 8497 | |
b21a15f6 | 8498 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8499 | } |
8500 | ||
b21a15f6 HMH |
8501 | static ssize_t fan_pwm1_store(struct device *dev, |
8502 | struct device_attribute *attr, | |
8503 | const char *buf, size_t count) | |
18ad7996 | 8504 | { |
b21a15f6 | 8505 | unsigned long s; |
1c6a334e | 8506 | int rc; |
b21a15f6 | 8507 | u8 status, newlevel; |
1c6a334e | 8508 | |
b21a15f6 HMH |
8509 | if (parse_strtoul(buf, 255, &s)) |
8510 | return -EINVAL; | |
8511 | ||
74a60c0f HMH |
8512 | tpacpi_disclose_usertask("hwmon pwm1", |
8513 | "set fan speed to %lu\n", s); | |
8514 | ||
b21a15f6 HMH |
8515 | /* scale down from 0-255 to 0-7 */ |
8516 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8517 | |
7646ea88 | 8518 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8519 | return -ERESTARTSYS; |
40ca9fdf | 8520 | |
b21a15f6 HMH |
8521 | rc = fan_get_status(&status); |
8522 | if (!rc && (status & | |
8523 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8524 | rc = fan_set_level(newlevel); | |
8525 | if (rc == -ENXIO) | |
8526 | rc = -EINVAL; | |
8527 | else if (!rc) { | |
8528 | fan_update_desired_level(newlevel); | |
8529 | fan_watchdog_reset(); | |
eaa7571b | 8530 | } |
b21a15f6 | 8531 | } |
1c6a334e | 8532 | |
b21a15f6 | 8533 | mutex_unlock(&fan_mutex); |
72a979f0 | 8534 | return (rc) ? rc : count; |
b21a15f6 | 8535 | } |
1c6a334e | 8536 | |
5fb73bc2 | 8537 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8538 | |
b21a15f6 HMH |
8539 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8540 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8541 | struct device_attribute *attr, | |
8542 | char *buf) | |
8543 | { | |
8544 | int res; | |
8545 | unsigned int speed; | |
1c6a334e | 8546 | |
b21a15f6 HMH |
8547 | res = fan_get_speed(&speed); |
8548 | if (res < 0) | |
8549 | return res; | |
1c6a334e | 8550 | |
b21a15f6 HMH |
8551 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8552 | } | |
18ad7996 | 8553 | |
5fb73bc2 | 8554 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8555 | |
d7377247 HMH |
8556 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8557 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8558 | struct device_attribute *attr, | |
8559 | char *buf) | |
8560 | { | |
8561 | int res; | |
8562 | unsigned int speed; | |
8563 | ||
8564 | res = fan2_get_speed(&speed); | |
8565 | if (res < 0) | |
8566 | return res; | |
8567 | ||
8568 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8569 | } | |
8570 | ||
5fb73bc2 | 8571 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8572 | |
b21a15f6 HMH |
8573 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
8574 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
8575 | char *buf) | |
8576 | { | |
8577 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8578 | } |
8579 | ||
b21a15f6 HMH |
8580 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
8581 | const char *buf, size_t count) | |
18ad7996 | 8582 | { |
b21a15f6 HMH |
8583 | unsigned long t; |
8584 | ||
8585 | if (parse_strtoul(buf, 120, &t)) | |
8586 | return -EINVAL; | |
40ca9fdf | 8587 | |
ecf2a80a HMH |
8588 | if (!fan_control_allowed) |
8589 | return -EPERM; | |
8590 | ||
b21a15f6 HMH |
8591 | fan_watchdog_maxinterval = t; |
8592 | fan_watchdog_reset(); | |
40ca9fdf | 8593 | |
74a60c0f HMH |
8594 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8595 | ||
b21a15f6 HMH |
8596 | return count; |
8597 | } | |
8598 | ||
8599 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
8600 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
8601 | ||
8602 | /* --------------------------------------------------------------------- */ | |
8603 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8604 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8605 | &dev_attr_fan1_input.attr, | |
d7377247 | 8606 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8607 | NULL |
8608 | }; | |
8609 | ||
8610 | static const struct attribute_group fan_attr_group = { | |
8611 | .attrs = fan_attributes, | |
8612 | }; | |
8613 | ||
d7377247 HMH |
8614 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
8615 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
8616 | |
8617 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
8618 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
8619 | .bios = TPACPI_MATCH_ANY, \ | |
8620 | .ec = TPID(__id1, __id2), \ | |
8621 | .quirks = __quirks } | |
8622 | ||
d7377247 HMH |
8623 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
8624 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
8625 | .bios = TPACPI_MATCH_ANY, \ | |
8626 | .ec = TPID(__id1, __id2), \ | |
8627 | .quirks = __quirks } | |
8628 | ||
7d95a3d5 HMH |
8629 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
8630 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8631 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8632 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8633 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8634 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8635 | }; |
8636 | ||
d7377247 | 8637 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8638 | #undef TPACPI_FAN_QI |
8639 | ||
b21a15f6 HMH |
8640 | static int __init fan_init(struct ibm_init_struct *iibm) |
8641 | { | |
8642 | int rc; | |
7d95a3d5 | 8643 | unsigned long quirks; |
b21a15f6 | 8644 | |
74a60c0f HMH |
8645 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8646 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8647 | |
8648 | mutex_init(&fan_mutex); | |
8649 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8650 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8651 | fan_control_commands = 0; | |
8652 | fan_watchdog_maxinterval = 0; | |
8653 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8654 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8655 | fan_control_desired_level = 7; |
8656 | ||
e28393c0 HMH |
8657 | if (tpacpi_is_ibm()) { |
8658 | TPACPI_ACPIHANDLE_INIT(fans); | |
8659 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8660 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8661 | } | |
b21a15f6 | 8662 | |
7d95a3d5 HMH |
8663 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8664 | ARRAY_SIZE(fan_quirk_table)); | |
8665 | ||
b21a15f6 HMH |
8666 | if (gfan_handle) { |
8667 | /* 570, 600e/x, 770e, 770x */ | |
8668 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8669 | } else { | |
8670 | /* all other ThinkPads: note that even old-style | |
8671 | * ThinkPad ECs supports the fan control register */ | |
8672 | if (likely(acpi_ec_read(fan_status_offset, | |
8673 | &fan_control_initial_status))) { | |
8674 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8675 | if (quirks & TPACPI_FAN_Q1) |
8676 | fan_quirk1_setup(); | |
d7377247 HMH |
8677 | if (quirks & TPACPI_FAN_2FAN) { |
8678 | tp_features.second_fan = 1; | |
8679 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8680 | "secondary fan support enabled\n"); | |
8681 | } | |
b21a15f6 | 8682 | } else { |
0978e012 | 8683 | pr_err("ThinkPad ACPI EC access misbehaving, " |
b21a15f6 HMH |
8684 | "fan status and control unavailable\n"); |
8685 | return 1; | |
8686 | } | |
8687 | } | |
8688 | ||
8689 | if (sfan_handle) { | |
8690 | /* 570, 770x-JL */ | |
8691 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8692 | fan_control_commands |= | |
8693 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8694 | } else { | |
8695 | if (!gfan_handle) { | |
8696 | /* gfan without sfan means no fan control */ | |
8697 | /* all other models implement TP EC 0x2f control */ | |
8698 | ||
8699 | if (fans_handle) { | |
8700 | /* X31, X40, X41 */ | |
8701 | fan_control_access_mode = | |
8702 | TPACPI_FAN_WR_ACPI_FANS; | |
8703 | fan_control_commands |= | |
8704 | TPACPI_FAN_CMD_SPEED | | |
8705 | TPACPI_FAN_CMD_LEVEL | | |
8706 | TPACPI_FAN_CMD_ENABLE; | |
8707 | } else { | |
8708 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8709 | fan_control_commands |= | |
8710 | TPACPI_FAN_CMD_LEVEL | | |
8711 | TPACPI_FAN_CMD_ENABLE; | |
8712 | } | |
fe98a52c | 8713 | } |
b21a15f6 | 8714 | } |
18ad7996 | 8715 | |
74a60c0f HMH |
8716 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8717 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8718 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8719 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8720 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8721 | |
b21a15f6 HMH |
8722 | /* fan control master switch */ |
8723 | if (!fan_control_allowed) { | |
8724 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8725 | fan_control_commands = 0; | |
74a60c0f | 8726 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8727 | "fan control features disabled by parameter\n"); |
18ad7996 | 8728 | } |
40ca9fdf | 8729 | |
b21a15f6 HMH |
8730 | /* update fan_control_desired_level */ |
8731 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8732 | fan_get_status_safe(NULL); | |
fe98a52c | 8733 | |
b21a15f6 HMH |
8734 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8735 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8736 | if (tp_features.second_fan) { |
8737 | /* attach second fan tachometer */ | |
8738 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8739 | &dev_attr_fan2_input.attr; |
d7377247 | 8740 | } |
b21a15f6 HMH |
8741 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8742 | &fan_attr_group); | |
b21a15f6 HMH |
8743 | if (rc < 0) |
8744 | return rc; | |
9c0a76e1 HMH |
8745 | |
8746 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8747 | &driver_attr_fan_watchdog); | |
8748 | if (rc < 0) { | |
8749 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8750 | &fan_attr_group); | |
8751 | return rc; | |
8752 | } | |
b21a15f6 HMH |
8753 | return 0; |
8754 | } else | |
8755 | return 1; | |
56b6aeb0 HMH |
8756 | } |
8757 | ||
b21a15f6 | 8758 | static void fan_exit(void) |
56b6aeb0 | 8759 | { |
74a60c0f | 8760 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8761 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8762 | |
b21a15f6 HMH |
8763 | /* FIXME: can we really do this unconditionally? */ |
8764 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8765 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8766 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8767 | |
b21a15f6 | 8768 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8769 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8770 | } |
8771 | ||
fd3c3a42 | 8772 | static void fan_suspend(void) |
75700e53 | 8773 | { |
0081b162 HMH |
8774 | int rc; |
8775 | ||
75700e53 HMH |
8776 | if (!fan_control_allowed) |
8777 | return; | |
8778 | ||
8779 | /* Store fan status in cache */ | |
0081b162 HMH |
8780 | fan_control_resume_level = 0; |
8781 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8782 | if (rc < 0) | |
0978e012 JP |
8783 | pr_notice("failed to read fan level for later " |
8784 | "restore during resume: %d\n", rc); | |
0081b162 HMH |
8785 | |
8786 | /* if it is undefined, don't attempt to restore it. | |
8787 | * KEEP THIS LAST */ | |
75700e53 | 8788 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8789 | fan_control_resume_level = 0; |
75700e53 HMH |
8790 | } |
8791 | ||
8792 | static void fan_resume(void) | |
8793 | { | |
75700e53 HMH |
8794 | u8 current_level = 7; |
8795 | bool do_set = false; | |
0081b162 | 8796 | int rc; |
75700e53 HMH |
8797 | |
8798 | /* DSDT *always* updates status on resume */ | |
8799 | tp_features.fan_ctrl_status_undef = 0; | |
8800 | ||
75700e53 | 8801 | if (!fan_control_allowed || |
0081b162 | 8802 | !fan_control_resume_level || |
75700e53 HMH |
8803 | (fan_get_status_safe(¤t_level) < 0)) |
8804 | return; | |
8805 | ||
8806 | switch (fan_control_access_mode) { | |
8807 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8808 | /* never decrease fan level */ |
8809 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8810 | break; |
8811 | case TPACPI_FAN_WR_ACPI_FANS: | |
8812 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8813 | /* never decrease fan level, scale is: |
8814 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8815 | * | |
8816 | * We expect the firmware to set either 7 or AUTO, but we | |
8817 | * handle FULLSPEED out of paranoia. | |
8818 | * | |
8819 | * So, we can safely only restore FULLSPEED or 7, anything | |
8820 | * else could slow the fan. Restoring AUTO is useless, at | |
8821 | * best that's exactly what the DSDT already set (it is the | |
8822 | * slower it uses). | |
8823 | * | |
8824 | * Always keep in mind that the DSDT *will* have set the | |
8825 | * fans to what the vendor supposes is the best level. We | |
8826 | * muck with it only to speed the fan up. | |
8827 | */ | |
8828 | if (fan_control_resume_level != 7 && | |
8829 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8830 | return; | |
8831 | else | |
8832 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8833 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8834 | break; |
8835 | default: | |
8836 | return; | |
8837 | } | |
8838 | if (do_set) { | |
0978e012 JP |
8839 | pr_notice("restoring fan level to 0x%02x\n", |
8840 | fan_control_resume_level); | |
0081b162 HMH |
8841 | rc = fan_set_level_safe(fan_control_resume_level); |
8842 | if (rc < 0) | |
0978e012 | 8843 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8844 | } |
8845 | } | |
8846 | ||
887965e6 | 8847 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8848 | { |
56b6aeb0 HMH |
8849 | int rc; |
8850 | u8 status; | |
8851 | unsigned int speed = 0; | |
8852 | ||
8853 | switch (fan_status_access_mode) { | |
efa27145 | 8854 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8855 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8856 | rc = fan_get_status_safe(&status); |
8857 | if (rc < 0) | |
56b6aeb0 HMH |
8858 | return rc; |
8859 | ||
887965e6 | 8860 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8861 | "level:\t\t%d\n", |
8862 | (status != 0) ? "enabled" : "disabled", status); | |
8863 | break; | |
8864 | ||
efa27145 | 8865 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8866 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8867 | rc = fan_get_status_safe(&status); |
8868 | if (rc < 0) | |
56b6aeb0 HMH |
8869 | return rc; |
8870 | ||
887965e6 | 8871 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8872 | (status != 0) ? "enabled" : "disabled"); |
8873 | ||
35ff8b9f HMH |
8874 | rc = fan_get_speed(&speed); |
8875 | if (rc < 0) | |
56b6aeb0 HMH |
8876 | return rc; |
8877 | ||
887965e6 | 8878 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8879 | |
efa27145 | 8880 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8881 | /* Disengaged mode takes precedence */ |
887965e6 | 8882 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8883 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8884 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8885 | else |
887965e6 | 8886 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8887 | break; |
8888 | ||
efa27145 | 8889 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8890 | default: |
887965e6 | 8891 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8892 | } |
8893 | ||
efa27145 | 8894 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8895 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8896 | |
8897 | switch (fan_control_access_mode) { | |
efa27145 | 8898 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8899 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8900 | break; |
8901 | ||
8902 | default: | |
887965e6 | 8903 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8904 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8905 | break; |
8906 | } | |
8907 | } | |
18ad7996 | 8908 | |
efa27145 | 8909 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8910 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8911 | "commands:\twatchdog <timeout> (<timeout> " |
8912 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8913 | |
efa27145 | 8914 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8915 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8916 | " (<speed> is 0-65535)\n"); |
8917 | ||
887965e6 | 8918 | return 0; |
78f81cc4 BD |
8919 | } |
8920 | ||
18ad7996 HMH |
8921 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8922 | { | |
8923 | int level; | |
8924 | ||
a12095c2 | 8925 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8926 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8927 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8928 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8929 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8930 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8931 | return 0; |
8932 | ||
35ff8b9f HMH |
8933 | *rc = fan_set_level_safe(level); |
8934 | if (*rc == -ENXIO) | |
0978e012 JP |
8935 | pr_err("level command accepted for unsupported access mode %d\n", |
8936 | fan_control_access_mode); | |
74a60c0f HMH |
8937 | else if (!*rc) |
8938 | tpacpi_disclose_usertask("procfs fan", | |
8939 | "set level to %d\n", level); | |
18ad7996 HMH |
8940 | |
8941 | return 1; | |
8942 | } | |
8943 | ||
8944 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8945 | { | |
8946 | if (strlencmp(cmd, "enable") != 0) | |
8947 | return 0; | |
8948 | ||
35ff8b9f HMH |
8949 | *rc = fan_set_enable(); |
8950 | if (*rc == -ENXIO) | |
0978e012 JP |
8951 | pr_err("enable command accepted for unsupported access mode %d\n", |
8952 | fan_control_access_mode); | |
74a60c0f HMH |
8953 | else if (!*rc) |
8954 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8955 | |
8956 | return 1; | |
8957 | } | |
8958 | ||
8959 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8960 | { | |
8961 | if (strlencmp(cmd, "disable") != 0) | |
8962 | return 0; | |
8963 | ||
35ff8b9f HMH |
8964 | *rc = fan_set_disable(); |
8965 | if (*rc == -ENXIO) | |
0978e012 JP |
8966 | pr_err("disable command accepted for unsupported access mode %d\n", |
8967 | fan_control_access_mode); | |
74a60c0f HMH |
8968 | else if (!*rc) |
8969 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8970 | |
8971 | return 1; | |
8972 | } | |
8973 | ||
8974 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8975 | { | |
8976 | int speed; | |
8977 | ||
a8b7a662 HMH |
8978 | /* TODO: |
8979 | * Support speed <low> <medium> <high> ? */ | |
8980 | ||
18ad7996 HMH |
8981 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8982 | return 0; | |
8983 | ||
35ff8b9f HMH |
8984 | *rc = fan_set_speed(speed); |
8985 | if (*rc == -ENXIO) | |
0978e012 JP |
8986 | pr_err("speed command accepted for unsupported access mode %d\n", |
8987 | fan_control_access_mode); | |
74a60c0f HMH |
8988 | else if (!*rc) |
8989 | tpacpi_disclose_usertask("procfs fan", | |
8990 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8991 | |
8992 | return 1; | |
8993 | } | |
8994 | ||
16663a87 HMH |
8995 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8996 | { | |
8997 | int interval; | |
8998 | ||
8999 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
9000 | return 0; | |
9001 | ||
9002 | if (interval < 0 || interval > 120) | |
9003 | *rc = -EINVAL; | |
74a60c0f | 9004 | else { |
16663a87 | 9005 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
9006 | tpacpi_disclose_usertask("procfs fan", |
9007 | "set watchdog timer to %d\n", | |
9008 | interval); | |
9009 | } | |
16663a87 HMH |
9010 | |
9011 | return 1; | |
9012 | } | |
9013 | ||
18ad7996 HMH |
9014 | static int fan_write(char *buf) |
9015 | { | |
9016 | char *cmd; | |
9017 | int rc = 0; | |
9018 | ||
9019 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 9020 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 9021 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 9022 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 9023 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
9024 | fan_write_cmd_disable(cmd, &rc) || |
9025 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 9026 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
9027 | fan_write_cmd_speed(cmd, &rc)) |
9028 | ) | |
9029 | rc = -EINVAL; | |
16663a87 HMH |
9030 | else if (!rc) |
9031 | fan_watchdog_reset(); | |
18ad7996 HMH |
9032 | } |
9033 | ||
9034 | return rc; | |
9035 | } | |
9036 | ||
a5763f22 HMH |
9037 | static struct ibm_struct fan_driver_data = { |
9038 | .name = "fan", | |
9039 | .read = fan_read, | |
9040 | .write = fan_write, | |
9041 | .exit = fan_exit, | |
75700e53 HMH |
9042 | .suspend = fan_suspend, |
9043 | .resume = fan_resume, | |
a5763f22 HMH |
9044 | }; |
9045 | ||
420f9739 DH |
9046 | /************************************************************************* |
9047 | * Mute LED subdriver | |
9048 | */ | |
9049 | ||
9050 | ||
9051 | struct tp_led_table { | |
9052 | acpi_string name; | |
9053 | int on_value; | |
9054 | int off_value; | |
9055 | int state; | |
9056 | }; | |
9057 | ||
9058 | static struct tp_led_table led_tables[] = { | |
9059 | [TPACPI_LED_MUTE] = { | |
9060 | .name = "SSMS", | |
9061 | .on_value = 1, | |
9062 | .off_value = 0, | |
9063 | }, | |
9064 | [TPACPI_LED_MICMUTE] = { | |
9065 | .name = "MMTS", | |
9066 | .on_value = 2, | |
9067 | .off_value = 0, | |
9068 | }, | |
9069 | }; | |
9070 | ||
9071 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
9072 | { | |
9073 | acpi_handle temp; | |
9074 | int output; | |
9075 | ||
3526ecad | 9076 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 DH |
9077 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); |
9078 | return -EIO; | |
9079 | } | |
9080 | ||
9081 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
9082 | state ? t->on_value : t->off_value)) | |
9083 | return -EIO; | |
9084 | ||
9085 | t->state = state; | |
9086 | return state; | |
9087 | } | |
9088 | ||
9089 | int tpacpi_led_set(int whichled, bool on) | |
9090 | { | |
9091 | struct tp_led_table *t; | |
9092 | ||
9093 | if (whichled < 0 || whichled >= TPACPI_LED_MAX) | |
9094 | return -EINVAL; | |
9095 | ||
9096 | t = &led_tables[whichled]; | |
9097 | if (t->state < 0 || t->state == on) | |
9098 | return t->state; | |
9099 | return mute_led_on_off(t, on); | |
9100 | } | |
9101 | EXPORT_SYMBOL_GPL(tpacpi_led_set); | |
9102 | ||
9103 | static int mute_led_init(struct ibm_init_struct *iibm) | |
9104 | { | |
9105 | acpi_handle temp; | |
9106 | int i; | |
9107 | ||
9108 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9109 | struct tp_led_table *t = &led_tables[i]; | |
9110 | if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) | |
9111 | mute_led_on_off(t, false); | |
9112 | else | |
9113 | t->state = -ENODEV; | |
9114 | } | |
9115 | return 0; | |
9116 | } | |
9117 | ||
9118 | static void mute_led_exit(void) | |
9119 | { | |
9120 | int i; | |
9121 | ||
9122 | for (i = 0; i < TPACPI_LED_MAX; i++) | |
9123 | tpacpi_led_set(i, false); | |
9124 | } | |
9125 | ||
119f4498 TI |
9126 | static void mute_led_resume(void) |
9127 | { | |
9128 | int i; | |
9129 | ||
9130 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9131 | struct tp_led_table *t = &led_tables[i]; | |
9132 | if (t->state >= 0) | |
9133 | mute_led_on_off(t, t->state); | |
9134 | } | |
9135 | } | |
9136 | ||
420f9739 DH |
9137 | static struct ibm_struct mute_led_driver_data = { |
9138 | .name = "mute_led", | |
9139 | .exit = mute_led_exit, | |
119f4498 | 9140 | .resume = mute_led_resume, |
420f9739 DH |
9141 | }; |
9142 | ||
56b6aeb0 HMH |
9143 | /**************************************************************************** |
9144 | **************************************************************************** | |
9145 | * | |
9146 | * Infrastructure | |
9147 | * | |
9148 | **************************************************************************** | |
9149 | ****************************************************************************/ | |
9150 | ||
8b468c0c HMH |
9151 | /* |
9152 | * HKEY event callout for other subdrivers go here | |
9153 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
9154 | */ | |
9155 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
9156 | { | |
347a2686 HMH |
9157 | if (ibm_backlight_device) { |
9158 | switch (hkey_event) { | |
9159 | case TP_HKEY_EV_BRGHT_UP: | |
9160 | case TP_HKEY_EV_BRGHT_DOWN: | |
9161 | tpacpi_brightness_notify_change(); | |
9162 | } | |
9163 | } | |
0d204c34 HMH |
9164 | if (alsa_card) { |
9165 | switch (hkey_event) { | |
9166 | case TP_HKEY_EV_VOL_UP: | |
9167 | case TP_HKEY_EV_VOL_DOWN: | |
9168 | case TP_HKEY_EV_VOL_MUTE: | |
9169 | volume_alsa_notify_change(); | |
9170 | } | |
9171 | } | |
8b468c0c HMH |
9172 | } |
9173 | ||
8b468c0c HMH |
9174 | static void hotkey_driver_event(const unsigned int scancode) |
9175 | { | |
67bcae6e | 9176 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
9177 | } |
9178 | ||
7fd40029 HMH |
9179 | /* sysfs name ---------------------------------------------------------- */ |
9180 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
9181 | struct device_attribute *attr, | |
9182 | char *buf) | |
9183 | { | |
e0c7dfe7 | 9184 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
9185 | } |
9186 | ||
5fb73bc2 | 9187 | static DEVICE_ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); |
7fd40029 HMH |
9188 | |
9189 | /* --------------------------------------------------------------------- */ | |
9190 | ||
56b6aeb0 | 9191 | /* /proc support */ |
94954cc6 | 9192 | static struct proc_dir_entry *proc_dir; |
16663a87 | 9193 | |
56b6aeb0 HMH |
9194 | /* |
9195 | * Module and infrastructure proble, init and exit handling | |
9196 | */ | |
1da177e4 | 9197 | |
90ab5ee9 | 9198 | static bool force_load; |
b21a15f6 | 9199 | |
fe08bc4b | 9200 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 9201 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 9202 | { |
a5763f22 | 9203 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 9204 | |
72a979f0 | 9205 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
9206 | } |
9207 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
9208 | ||
b21a15f6 HMH |
9209 | static void ibm_exit(struct ibm_struct *ibm) |
9210 | { | |
9211 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
9212 | ||
9213 | list_del_init(&ibm->all_drivers); | |
9214 | ||
9215 | if (ibm->flags.acpi_notify_installed) { | |
9216 | dbg_printk(TPACPI_DBG_EXIT, | |
9217 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
9218 | BUG_ON(!ibm->acpi); | |
9219 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
9220 | ibm->acpi->type, | |
9221 | dispatch_acpi_notify); | |
9222 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
9223 | } |
9224 | ||
9225 | if (ibm->flags.proc_created) { | |
9226 | dbg_printk(TPACPI_DBG_EXIT, | |
9227 | "%s: remove_proc_entry\n", ibm->name); | |
9228 | remove_proc_entry(ibm->name, proc_dir); | |
9229 | ibm->flags.proc_created = 0; | |
9230 | } | |
9231 | ||
9232 | if (ibm->flags.acpi_driver_registered) { | |
9233 | dbg_printk(TPACPI_DBG_EXIT, | |
9234 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
9235 | BUG_ON(!ibm->acpi); | |
9236 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
9237 | kfree(ibm->acpi->driver); | |
9238 | ibm->acpi->driver = NULL; | |
9239 | ibm->flags.acpi_driver_registered = 0; | |
9240 | } | |
9241 | ||
9242 | if (ibm->flags.init_called && ibm->exit) { | |
9243 | ibm->exit(); | |
9244 | ibm->flags.init_called = 0; | |
9245 | } | |
9246 | ||
9247 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
9248 | } | |
f74a27d4 | 9249 | |
a5763f22 | 9250 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
9251 | { |
9252 | int ret; | |
a5763f22 | 9253 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
9254 | struct proc_dir_entry *entry; |
9255 | ||
a5763f22 HMH |
9256 | BUG_ON(ibm == NULL); |
9257 | ||
9258 | INIT_LIST_HEAD(&ibm->all_drivers); | |
9259 | ||
92641177 | 9260 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
9261 | return 0; |
9262 | ||
fe08bc4b HMH |
9263 | dbg_printk(TPACPI_DBG_INIT, |
9264 | "probing for %s\n", ibm->name); | |
9265 | ||
a5763f22 HMH |
9266 | if (iibm->init) { |
9267 | ret = iibm->init(iibm); | |
5fba344c HMH |
9268 | if (ret > 0) |
9269 | return 0; /* probe failed */ | |
9270 | if (ret) | |
1da177e4 | 9271 | return ret; |
a5763f22 | 9272 | |
92641177 | 9273 | ibm->flags.init_called = 1; |
1da177e4 LT |
9274 | } |
9275 | ||
8d376cd6 HMH |
9276 | if (ibm->acpi) { |
9277 | if (ibm->acpi->hid) { | |
9278 | ret = register_tpacpi_subdriver(ibm); | |
9279 | if (ret) | |
9280 | goto err_out; | |
9281 | } | |
5fba344c | 9282 | |
8d376cd6 HMH |
9283 | if (ibm->acpi->notify) { |
9284 | ret = setup_acpi_notify(ibm); | |
9285 | if (ret == -ENODEV) { | |
0978e012 JP |
9286 | pr_notice("disabling subdriver %s\n", |
9287 | ibm->name); | |
8d376cd6 HMH |
9288 | ret = 0; |
9289 | goto err_out; | |
9290 | } | |
9291 | if (ret < 0) | |
9292 | goto err_out; | |
5fba344c | 9293 | } |
5fba344c HMH |
9294 | } |
9295 | ||
fe08bc4b HMH |
9296 | dbg_printk(TPACPI_DBG_INIT, |
9297 | "%s installed\n", ibm->name); | |
9298 | ||
78f81cc4 | 9299 | if (ibm->read) { |
d161a13f | 9300 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 9301 | |
b525c06c HMH |
9302 | if (!mode) |
9303 | mode = S_IRUGO; | |
887965e6 AD |
9304 | if (ibm->write) |
9305 | mode |= S_IWUSR; | |
9306 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
9307 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 9308 | if (!entry) { |
0978e012 | 9309 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
9310 | ret = -ENODEV; |
9311 | goto err_out; | |
78f81cc4 | 9312 | } |
92641177 | 9313 | ibm->flags.proc_created = 1; |
78f81cc4 | 9314 | } |
1da177e4 | 9315 | |
a5763f22 HMH |
9316 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
9317 | ||
1da177e4 | 9318 | return 0; |
5fba344c HMH |
9319 | |
9320 | err_out: | |
fe08bc4b HMH |
9321 | dbg_printk(TPACPI_DBG_INIT, |
9322 | "%s: at error exit path with result %d\n", | |
9323 | ibm->name, ret); | |
9324 | ||
5fba344c | 9325 | ibm_exit(ibm); |
72a979f0 | 9326 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
9327 | } |
9328 | ||
56b6aeb0 HMH |
9329 | /* Probing */ |
9330 | ||
050df107 HMH |
9331 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
9332 | { | |
9333 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
9334 | } | |
9335 | ||
72a979f0 | 9336 | static bool __pure __init tpacpi_is_valid_fw_id(const char * const s, |
050df107 HMH |
9337 | const char t) |
9338 | { | |
1b0eb5bc AL |
9339 | /* |
9340 | * Most models: xxyTkkWW (#.##c) | |
9341 | * Ancient 570/600 and -SL lacks (#.##c) | |
9342 | */ | |
9343 | if (s && strlen(s) >= 8 && | |
050df107 HMH |
9344 | tpacpi_is_fw_digit(s[0]) && |
9345 | tpacpi_is_fw_digit(s[1]) && | |
16a3d9f5 MI |
9346 | s[2] == t && |
9347 | (s[3] == 'T' || s[3] == 'N') && | |
050df107 | 9348 | tpacpi_is_fw_digit(s[4]) && |
1b0eb5bc AL |
9349 | tpacpi_is_fw_digit(s[5])) |
9350 | return true; | |
9351 | ||
9352 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
9353 | return s && strlen(s) >= 8 && | |
9354 | tpacpi_is_fw_digit(s[0]) && | |
9355 | tpacpi_is_fw_digit(s[1]) && | |
9356 | tpacpi_is_fw_digit(s[2]) && | |
9357 | s[3] == t && | |
9358 | (s[4] == 'T' || s[4] == 'N') && | |
9359 | tpacpi_is_fw_digit(s[5]) && | |
9360 | tpacpi_is_fw_digit(s[6]); | |
050df107 HMH |
9361 | } |
9362 | ||
bf20e740 HMH |
9363 | /* returns 0 - probe ok, or < 0 - probe error. |
9364 | * Probe ok doesn't mean thinkpad found. | |
9365 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
9366 | static int __must_check __init get_thinkpad_model_data( | |
9367 | struct thinkpad_id_data *tp) | |
1da177e4 | 9368 | { |
1855256c | 9369 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 9370 | char ec_fw_string[18]; |
bf20e740 | 9371 | char const *s; |
1da177e4 | 9372 | |
d5a2f2f1 | 9373 | if (!tp) |
bf20e740 | 9374 | return -EINVAL; |
d5a2f2f1 HMH |
9375 | |
9376 | memset(tp, 0, sizeof(*tp)); | |
9377 | ||
9378 | if (dmi_name_in_vendors("IBM")) | |
9379 | tp->vendor = PCI_VENDOR_ID_IBM; | |
9380 | else if (dmi_name_in_vendors("LENOVO")) | |
9381 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
9382 | else | |
bf20e740 | 9383 | return 0; |
d5a2f2f1 | 9384 | |
bf20e740 HMH |
9385 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
9386 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
9387 | if (s && !tp->bios_version_str) | |
9388 | return -ENOMEM; | |
050df107 HMH |
9389 | |
9390 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
16a3d9f5 MI |
9391 | if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') || |
9392 | tpacpi_is_valid_fw_id(tp->bios_version_str, 'C'))) | |
bf20e740 | 9393 | return 0; |
050df107 | 9394 | |
d5a2f2f1 HMH |
9395 | tp->bios_model = tp->bios_version_str[0] |
9396 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
9397 | tp->bios_release = (tp->bios_version_str[4] << 8) |
9398 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 9399 | |
56b6aeb0 HMH |
9400 | /* |
9401 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
9402 | * X32 or newer, all Z series; Some models must have an | |
9403 | * up-to-date BIOS or they will not be detected. | |
9404 | * | |
9405 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9406 | */ | |
9407 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
9408 | if (sscanf(dev->name, | |
9409 | "IBM ThinkPad Embedded Controller -[%17c", | |
9410 | ec_fw_string) == 1) { | |
9411 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
9412 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
9413 | |
9414 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
9415 | if (!tp->ec_version_str) |
9416 | return -ENOMEM; | |
050df107 HMH |
9417 | |
9418 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
9419 | tp->ec_model = ec_fw_string[0] | |
9420 | | (ec_fw_string[1] << 8); | |
9421 | tp->ec_release = (ec_fw_string[4] << 8) | |
9422 | | ec_fw_string[5]; | |
9423 | } else { | |
0978e012 JP |
9424 | pr_notice("ThinkPad firmware release %s " |
9425 | "doesn't match the known patterns\n", | |
9426 | ec_fw_string); | |
9427 | pr_notice("please report this to %s\n", | |
9428 | TPACPI_MAIL); | |
050df107 | 9429 | } |
d5a2f2f1 | 9430 | break; |
78f81cc4 | 9431 | } |
1da177e4 | 9432 | } |
d5a2f2f1 | 9433 | |
bf20e740 | 9434 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 9435 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
9436 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9437 | if (!tp->model_str) | |
9438 | return -ENOMEM; | |
a4f46bb9 MI |
9439 | } else { |
9440 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 9441 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
9442 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9443 | if (!tp->model_str) | |
9444 | return -ENOMEM; | |
9445 | } | |
d5a2f2f1 | 9446 | } |
8c74adbc | 9447 | |
bf20e740 HMH |
9448 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
9449 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
9450 | if (s && !tp->nummodel_str) | |
9451 | return -ENOMEM; | |
9452 | ||
9453 | return 0; | |
1da177e4 LT |
9454 | } |
9455 | ||
5fba344c HMH |
9456 | static int __init probe_for_thinkpad(void) |
9457 | { | |
9458 | int is_thinkpad; | |
9459 | ||
9460 | if (acpi_disabled) | |
9461 | return -ENODEV; | |
9462 | ||
e28393c0 HMH |
9463 | /* It would be dangerous to run the driver in this case */ |
9464 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
9465 | return -ENODEV; | |
9466 | ||
5fba344c HMH |
9467 | /* |
9468 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 9469 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 9470 | */ |
e675abaf HMH |
9471 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
9472 | (thinkpad_id.ec_model != 0) || | |
9473 | tpacpi_is_fw_known(); | |
5fba344c | 9474 | |
437e470c HMH |
9475 | /* The EC handler is required */ |
9476 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
9477 | if (!ec_handle) { |
9478 | if (is_thinkpad) | |
0978e012 | 9479 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
9480 | return -ENODEV; |
9481 | } | |
9482 | ||
0dcef77c HMH |
9483 | if (!is_thinkpad && !force_load) |
9484 | return -ENODEV; | |
9485 | ||
5fba344c HMH |
9486 | return 0; |
9487 | } | |
9488 | ||
7a43f788 HMH |
9489 | static void __init thinkpad_acpi_init_banner(void) |
9490 | { | |
0978e012 JP |
9491 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
9492 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 9493 | |
0978e012 | 9494 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
9495 | (thinkpad_id.bios_version_str) ? |
9496 | thinkpad_id.bios_version_str : "unknown", | |
9497 | (thinkpad_id.ec_version_str) ? | |
9498 | thinkpad_id.ec_version_str : "unknown"); | |
9499 | ||
9500 | BUG_ON(!thinkpad_id.vendor); | |
9501 | ||
9502 | if (thinkpad_id.model_str) | |
0978e012 | 9503 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
9504 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
9505 | "IBM" : ((thinkpad_id.vendor == | |
9506 | PCI_VENDOR_ID_LENOVO) ? | |
9507 | "Lenovo" : "Unknown vendor"), | |
9508 | thinkpad_id.model_str, | |
9509 | (thinkpad_id.nummodel_str) ? | |
9510 | thinkpad_id.nummodel_str : "unknown"); | |
9511 | } | |
5fba344c | 9512 | |
56b6aeb0 | 9513 | /* Module init, exit, parameters */ |
1da177e4 | 9514 | |
a5763f22 HMH |
9515 | static struct ibm_init_struct ibms_init[] __initdata = { |
9516 | { | |
a5763f22 HMH |
9517 | .data = &thinkpad_acpi_driver_data, |
9518 | }, | |
9519 | { | |
9520 | .init = hotkey_init, | |
9521 | .data = &hotkey_driver_data, | |
9522 | }, | |
9523 | { | |
9524 | .init = bluetooth_init, | |
9525 | .data = &bluetooth_driver_data, | |
9526 | }, | |
9527 | { | |
9528 | .init = wan_init, | |
9529 | .data = &wan_driver_data, | |
9530 | }, | |
0045c0aa HMH |
9531 | { |
9532 | .init = uwb_init, | |
9533 | .data = &uwb_driver_data, | |
9534 | }, | |
d7c1d17d | 9535 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
9536 | { |
9537 | .init = video_init, | |
b525c06c | 9538 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
9539 | .data = &video_driver_data, |
9540 | }, | |
d7c1d17d | 9541 | #endif |
bb28f3d5 PR |
9542 | { |
9543 | .init = kbdlight_init, | |
9544 | .data = &kbdlight_driver_data, | |
9545 | }, | |
a5763f22 HMH |
9546 | { |
9547 | .init = light_init, | |
9548 | .data = &light_driver_data, | |
9549 | }, | |
a5763f22 HMH |
9550 | { |
9551 | .init = cmos_init, | |
9552 | .data = &cmos_driver_data, | |
9553 | }, | |
9554 | { | |
9555 | .init = led_init, | |
9556 | .data = &led_driver_data, | |
9557 | }, | |
9558 | { | |
9559 | .init = beep_init, | |
9560 | .data = &beep_driver_data, | |
9561 | }, | |
9562 | { | |
9563 | .init = thermal_init, | |
9564 | .data = &thermal_driver_data, | |
9565 | }, | |
a5763f22 HMH |
9566 | { |
9567 | .init = brightness_init, | |
9568 | .data = &brightness_driver_data, | |
9569 | }, | |
9570 | { | |
329e4e18 | 9571 | .init = volume_init, |
a5763f22 HMH |
9572 | .data = &volume_driver_data, |
9573 | }, | |
9574 | { | |
9575 | .init = fan_init, | |
9576 | .data = &fan_driver_data, | |
9577 | }, | |
420f9739 DH |
9578 | { |
9579 | .init = mute_led_init, | |
9580 | .data = &mute_led_driver_data, | |
9581 | }, | |
a5763f22 HMH |
9582 | }; |
9583 | ||
3945ac36 | 9584 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
9585 | { |
9586 | unsigned int i; | |
a5763f22 | 9587 | struct ibm_struct *ibm; |
1da177e4 | 9588 | |
59f91ff1 HMH |
9589 | if (!kp || !kp->name || !val) |
9590 | return -EINVAL; | |
9591 | ||
a5763f22 HMH |
9592 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9593 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
9594 | WARN_ON(ibm == NULL); |
9595 | ||
9596 | if (!ibm || !ibm->name) | |
9597 | continue; | |
a5763f22 HMH |
9598 | |
9599 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
9600 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 9601 | return -ENOSPC; |
a5763f22 HMH |
9602 | strcpy(ibms_init[i].param, val); |
9603 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
9604 | return 0; |
9605 | } | |
a5763f22 | 9606 | } |
1da177e4 | 9607 | |
1da177e4 LT |
9608 | return -EINVAL; |
9609 | } | |
9610 | ||
b09c7225 | 9611 | module_param(experimental, int, 0444); |
f68080f8 | 9612 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 9613 | "Enables experimental features when non-zero"); |
56b6aeb0 | 9614 | |
132ce091 | 9615 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 9616 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 9617 | |
b09c7225 | 9618 | module_param(force_load, bool, 0444); |
f68080f8 | 9619 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
9620 | "Attempts to load the driver even on a " |
9621 | "mis-identified ThinkPad when true"); | |
0dcef77c | 9622 | |
b09c7225 | 9623 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 9624 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 9625 | "Enables setting fan parameters features when true"); |
ecf2a80a | 9626 | |
b09c7225 | 9627 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 9628 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 9629 | "Selects brightness control strategy: " |
0e501834 | 9630 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 9631 | |
b09c7225 | 9632 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 9633 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 9634 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 9635 | |
ff850c33 | 9636 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
9637 | module_param_named(volume_mode, volume_mode, uint, 0444); |
9638 | MODULE_PARM_DESC(volume_mode, | |
9639 | "Selects volume control strategy: " | |
9640 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
9641 | ||
a112ceee HMH |
9642 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
9643 | MODULE_PARM_DESC(volume_capabilities, | |
9644 | "Selects the mixer capabilites: " | |
9645 | "0=auto, 1=volume and mute, 2=mute only"); | |
9646 | ||
c7ac6291 HMH |
9647 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
9648 | MODULE_PARM_DESC(volume_control, | |
9649 | "Enables software override for the console audio " | |
9650 | "control when true"); | |
9651 | ||
9a417ec0 AL |
9652 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
9653 | MODULE_PARM_DESC(software_mute, | |
9654 | "Request full software mute control"); | |
9655 | ||
0d204c34 HMH |
9656 | /* ALSA module API parameters */ |
9657 | module_param_named(index, alsa_index, int, 0444); | |
9658 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
9659 | module_param_named(id, alsa_id, charp, 0444); | |
9660 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
9661 | module_param_named(enable, alsa_enable, bool, 0444); | |
9662 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 9663 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 9664 | |
e0c7dfe7 | 9665 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 9666 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 9667 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 9668 | "at module load, see documentation") |
1da177e4 | 9669 | |
e0c7dfe7 HMH |
9670 | TPACPI_PARAM(hotkey); |
9671 | TPACPI_PARAM(bluetooth); | |
9672 | TPACPI_PARAM(video); | |
9673 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
9674 | TPACPI_PARAM(cmos); |
9675 | TPACPI_PARAM(led); | |
9676 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
9677 | TPACPI_PARAM(brightness); |
9678 | TPACPI_PARAM(volume); | |
9679 | TPACPI_PARAM(fan); | |
78f81cc4 | 9680 | |
a73f3091 | 9681 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 9682 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
9683 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
9684 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
9685 | MODULE_PARM_DESC(wlsw_state, | |
9686 | "Initial state of the emulated WLSW switch"); | |
9687 | ||
b09c7225 | 9688 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
9689 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
9690 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
9691 | MODULE_PARM_DESC(bluetooth_state, | |
9692 | "Initial state of the emulated bluetooth switch"); | |
9693 | ||
b09c7225 | 9694 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
9695 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
9696 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
9697 | MODULE_PARM_DESC(wwan_state, | |
9698 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 9699 | |
b09c7225 | 9700 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
9701 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
9702 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
9703 | MODULE_PARM_DESC(uwb_state, | |
9704 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
9705 | #endif |
9706 | ||
b21a15f6 HMH |
9707 | static void thinkpad_acpi_module_exit(void) |
9708 | { | |
9709 | struct ibm_struct *ibm, *itmp; | |
9710 | ||
9711 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
9712 | ||
9713 | list_for_each_entry_safe_reverse(ibm, itmp, | |
9714 | &tpacpi_all_drivers, | |
9715 | all_drivers) { | |
9716 | ibm_exit(ibm); | |
9717 | } | |
9718 | ||
9719 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
9720 | ||
9721 | if (tpacpi_inputdev) { | |
9722 | if (tp_features.input_device_registered) | |
9723 | input_unregister_device(tpacpi_inputdev); | |
9724 | else | |
9725 | input_free_device(tpacpi_inputdev); | |
00d39597 | 9726 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
9727 | } |
9728 | ||
9729 | if (tpacpi_hwmon) | |
9730 | hwmon_device_unregister(tpacpi_hwmon); | |
9731 | ||
9732 | if (tp_features.sensors_pdev_attrs_registered) | |
5fb73bc2 | 9733 | device_remove_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
b21a15f6 HMH |
9734 | if (tpacpi_sensors_pdev) |
9735 | platform_device_unregister(tpacpi_sensors_pdev); | |
9736 | if (tpacpi_pdev) | |
9737 | platform_device_unregister(tpacpi_pdev); | |
9738 | ||
9739 | if (tp_features.sensors_pdrv_attrs_registered) | |
9740 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
9741 | if (tp_features.platform_drv_attrs_registered) | |
9742 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
9743 | ||
9744 | if (tp_features.sensors_pdrv_registered) | |
9745 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
9746 | ||
9747 | if (tp_features.platform_drv_registered) | |
9748 | platform_driver_unregister(&tpacpi_pdriver); | |
9749 | ||
9750 | if (proc_dir) | |
e0c7dfe7 | 9751 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9752 | |
e0e3c061 HMH |
9753 | if (tpacpi_wq) |
9754 | destroy_workqueue(tpacpi_wq); | |
9755 | ||
b21a15f6 HMH |
9756 | kfree(thinkpad_id.bios_version_str); |
9757 | kfree(thinkpad_id.ec_version_str); | |
9758 | kfree(thinkpad_id.model_str); | |
d2be15bd | 9759 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
9760 | } |
9761 | ||
f74a27d4 | 9762 | |
1def7115 | 9763 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9764 | { |
9765 | int ret, i; | |
9766 | ||
8fef502e HMH |
9767 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9768 | ||
54ae1501 | 9769 | /* Driver-level probe */ |
d5a2f2f1 | 9770 | |
bf20e740 HMH |
9771 | ret = get_thinkpad_model_data(&thinkpad_id); |
9772 | if (ret) { | |
0978e012 | 9773 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
9774 | thinkpad_acpi_module_exit(); |
9775 | return ret; | |
9776 | } | |
5fba344c | 9777 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9778 | if (ret) { |
9779 | thinkpad_acpi_module_exit(); | |
5fba344c | 9780 | return ret; |
d5a2f2f1 | 9781 | } |
1da177e4 | 9782 | |
54ae1501 | 9783 | /* Driver initialization */ |
d5a2f2f1 | 9784 | |
7a43f788 HMH |
9785 | thinkpad_acpi_init_banner(); |
9786 | tpacpi_check_outdated_fw(); | |
9787 | ||
e0c7dfe7 HMH |
9788 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9789 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9790 | |
e0e3c061 HMH |
9791 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9792 | if (!tpacpi_wq) { | |
9793 | thinkpad_acpi_module_exit(); | |
9794 | return -ENOMEM; | |
9795 | } | |
9796 | ||
e0c7dfe7 | 9797 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9798 | if (!proc_dir) { |
0978e012 | 9799 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 9800 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9801 | return -ENODEV; |
9802 | } | |
78f81cc4 | 9803 | |
54ae1501 HMH |
9804 | ret = platform_driver_register(&tpacpi_pdriver); |
9805 | if (ret) { | |
0978e012 | 9806 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
9807 | thinkpad_acpi_module_exit(); |
9808 | return ret; | |
9809 | } | |
ac36393d HMH |
9810 | tp_features.platform_drv_registered = 1; |
9811 | ||
7fd40029 HMH |
9812 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9813 | if (ret) { | |
0978e012 | 9814 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
9815 | thinkpad_acpi_module_exit(); |
9816 | return ret; | |
9817 | } | |
9818 | tp_features.sensors_pdrv_registered = 1; | |
9819 | ||
176750d6 | 9820 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9821 | if (!ret) { |
9822 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9823 | ret = tpacpi_create_driver_attributes( |
9824 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9825 | } |
176750d6 | 9826 | if (ret) { |
0978e012 | 9827 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
9828 | thinkpad_acpi_module_exit(); |
9829 | return ret; | |
9830 | } | |
2369cc94 | 9831 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9832 | |
54ae1501 HMH |
9833 | |
9834 | /* Device initialization */ | |
e0c7dfe7 | 9835 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9836 | NULL, 0); |
9837 | if (IS_ERR(tpacpi_pdev)) { | |
9838 | ret = PTR_ERR(tpacpi_pdev); | |
9839 | tpacpi_pdev = NULL; | |
0978e012 | 9840 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
9841 | thinkpad_acpi_module_exit(); |
9842 | return ret; | |
9843 | } | |
7fd40029 | 9844 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9845 | TPACPI_HWMON_DRVR_NAME, |
9846 | -1, NULL, 0); | |
7fd40029 HMH |
9847 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9848 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9849 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 9850 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
9851 | thinkpad_acpi_module_exit(); |
9852 | return ret; | |
9853 | } | |
5fb73bc2 | 9854 | ret = device_create_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
7fd40029 | 9855 | if (ret) { |
0978e012 | 9856 | pr_err("unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9857 | thinkpad_acpi_module_exit(); |
9858 | return ret; | |
9859 | } | |
9860 | tp_features.sensors_pdev_attrs_registered = 1; | |
9861 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9862 | if (IS_ERR(tpacpi_hwmon)) { |
9863 | ret = PTR_ERR(tpacpi_hwmon); | |
9864 | tpacpi_hwmon = NULL; | |
0978e012 | 9865 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
9866 | thinkpad_acpi_module_exit(); |
9867 | return ret; | |
9868 | } | |
8523ed6f | 9869 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9870 | tpacpi_inputdev = input_allocate_device(); |
9871 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
9872 | thinkpad_acpi_module_exit(); |
9873 | return -ENOMEM; | |
9874 | } else { | |
9875 | /* Prepare input device, but don't register */ | |
9876 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9877 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9878 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9879 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9880 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9881 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9882 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9883 | } |
77775838 HMH |
9884 | |
9885 | /* Init subdriver dependencies */ | |
9886 | tpacpi_detect_brightness_capabilities(); | |
9887 | ||
9888 | /* Init subdrivers */ | |
a5763f22 HMH |
9889 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9890 | ret = ibm_init(&ibms_init[i]); | |
9891 | if (ret >= 0 && *ibms_init[i].param) | |
9892 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9893 | if (ret < 0) { |
1def7115 | 9894 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9895 | return ret; |
9896 | } | |
9897 | } | |
b589ea4c HMH |
9898 | |
9899 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9900 | ||
7f5d1cd6 HMH |
9901 | ret = input_register_device(tpacpi_inputdev); |
9902 | if (ret < 0) { | |
0978e012 | 9903 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
9904 | thinkpad_acpi_module_exit(); |
9905 | return ret; | |
9906 | } else { | |
9907 | tp_features.input_device_registered = 1; | |
9908 | } | |
1da177e4 LT |
9909 | |
9910 | return 0; | |
9911 | } | |
9912 | ||
95e57ab2 HMH |
9913 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9914 | ||
922fe097 HMH |
9915 | /* |
9916 | * This will autoload the driver in almost every ThinkPad | |
9917 | * in widespread use. | |
9918 | * | |
9919 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9920 | * the HKEY event interface. | |
9921 | */ | |
9922 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9923 | ||
f68080f8 HMH |
9924 | /* |
9925 | * DMI matching for module autoloading | |
9926 | * | |
9927 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9928 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9929 | * | |
9930 | * Only models listed in thinkwiki will be supported, so add yours | |
9931 | * if it is not there yet. | |
9932 | */ | |
9933 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9934 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9935 | |
f68080f8 HMH |
9936 | /* Ancient thinkpad BIOSes have to be identified by |
9937 | * BIOS type or model number, and there are far less | |
9938 | * BIOS types than model numbers... */ | |
922fe097 | 9939 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9940 | |
f68f53a2 HMH |
9941 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9942 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9943 | MODULE_DESCRIPTION(TPACPI_DESC); |
9944 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9945 | MODULE_LICENSE("GPL"); |
9946 | ||
1def7115 HMH |
9947 | module_init(thinkpad_acpi_module_init); |
9948 | module_exit(thinkpad_acpi_module_exit); |