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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 */ | |
c685e20d | 166 | TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */ |
67bcae6e HMH |
167 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ |
168 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
169 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
170 | ||
171 | /* Reasons for waking up from S3/S4 */ | |
172 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
173 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
174 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
175 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
176 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
177 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
178 | ||
179 | /* Auto-sleep after eject request */ | |
180 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
181 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
182 | ||
183 | /* Misc bay events */ | |
184 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
185 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
186 | or port replicator */ | |
187 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
188 | dock or port replicator */ | |
67bcae6e HMH |
189 | |
190 | /* User-interface events */ | |
191 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
192 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
193 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
194 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
b03f4d49 L |
195 | TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): |
196 | * enter/leave tablet mode | |
197 | */ | |
67bcae6e HMH |
198 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ |
199 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
200 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
201 | ||
2d43f671 HMH |
202 | /* Key-related user-interface events */ |
203 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
204 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 205 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 206 | |
67bcae6e HMH |
207 | /* Thermal events */ |
208 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
209 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
210 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
211 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
212 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
213 | ||
6f62bc3e RH |
214 | /* AC-related events */ |
215 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 216 | |
67bcae6e HMH |
217 | /* Misc */ |
218 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
219 | }; | |
220 | ||
b21a15f6 HMH |
221 | /**************************************************************************** |
222 | * Main driver | |
223 | */ | |
224 | ||
e0c7dfe7 HMH |
225 | #define TPACPI_NAME "thinkpad" |
226 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
227 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
228 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
229 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 230 | |
e0c7dfe7 HMH |
231 | #define TPACPI_PROC_DIR "ibm" |
232 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
233 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 234 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 235 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 236 | |
95e57ab2 | 237 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 238 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 239 | |
e0c7dfe7 | 240 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 241 | |
7ff8d62f | 242 | /* Debugging printk groups */ |
0c78039f | 243 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 244 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
245 | #define TPACPI_DBG_INIT 0x0001 |
246 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 247 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 248 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 249 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 250 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 251 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 252 | |
35ff8b9f HMH |
253 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
254 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
255 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 256 | |
0c78039f HMH |
257 | |
258 | /**************************************************************************** | |
b21a15f6 | 259 | * Driver-wide structs and misc. variables |
0c78039f HMH |
260 | */ |
261 | ||
262 | struct ibm_struct; | |
263 | ||
264 | struct tp_acpi_drv_struct { | |
265 | const struct acpi_device_id *hid; | |
266 | struct acpi_driver *driver; | |
267 | ||
268 | void (*notify) (struct ibm_struct *, u32); | |
269 | acpi_handle *handle; | |
270 | u32 type; | |
271 | struct acpi_device *device; | |
272 | }; | |
273 | ||
274 | struct ibm_struct { | |
275 | char *name; | |
276 | ||
887965e6 | 277 | int (*read) (struct seq_file *); |
0c78039f HMH |
278 | int (*write) (char *); |
279 | void (*exit) (void); | |
280 | void (*resume) (void); | |
fd3c3a42 | 281 | void (*suspend) (void); |
90d9d3c7 | 282 | void (*shutdown) (void); |
0c78039f HMH |
283 | |
284 | struct list_head all_drivers; | |
285 | ||
286 | struct tp_acpi_drv_struct *acpi; | |
287 | ||
288 | struct { | |
289 | u8 acpi_driver_registered:1; | |
290 | u8 acpi_notify_installed:1; | |
291 | u8 proc_created:1; | |
292 | u8 init_called:1; | |
293 | u8 experimental:1; | |
294 | } flags; | |
295 | }; | |
296 | ||
297 | struct ibm_init_struct { | |
298 | char param[32]; | |
299 | ||
300 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 301 | umode_t base_procfs_mode; |
0c78039f HMH |
302 | struct ibm_struct *data; |
303 | }; | |
304 | ||
305 | static struct { | |
0c78039f HMH |
306 | u32 bluetooth:1; |
307 | u32 hotkey:1; | |
308 | u32 hotkey_mask:1; | |
309 | u32 hotkey_wlsw:1; | |
b3180028 L |
310 | enum { |
311 | TP_HOTKEY_TABLET_NONE = 0, | |
312 | TP_HOTKEY_TABLET_USES_MHKG, | |
b03f4d49 L |
313 | /* X1 Yoga 2016, seen on BIOS N1FET44W */ |
314 | TP_HOTKEY_TABLET_USES_CMMD, | |
b3180028 | 315 | } hotkey_tablet; |
bb28f3d5 | 316 | u32 kbdlight:1; |
0c78039f HMH |
317 | u32 light:1; |
318 | u32 light_status:1; | |
b5972796 | 319 | u32 bright_acpimode:1; |
77775838 | 320 | u32 bright_unkfw:1; |
0c78039f | 321 | u32 wan:1; |
0045c0aa | 322 | u32 uwb:1; |
0c78039f | 323 | u32 fan_ctrl_status_undef:1; |
d7377247 | 324 | u32 second_fan:1; |
60201732 | 325 | u32 beep_needs_two_args:1; |
a112ceee | 326 | u32 mixer_no_level_control:1; |
0c78039f HMH |
327 | u32 input_device_registered:1; |
328 | u32 platform_drv_registered:1; | |
329 | u32 platform_drv_attrs_registered:1; | |
330 | u32 sensors_pdrv_registered:1; | |
331 | u32 sensors_pdrv_attrs_registered:1; | |
332 | u32 sensors_pdev_attrs_registered:1; | |
333 | u32 hotkey_poll_active:1; | |
f23a5bcb | 334 | u32 has_adaptive_kbd:1; |
0c78039f HMH |
335 | } tp_features; |
336 | ||
92889022 HMH |
337 | static struct { |
338 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 339 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
340 | } tp_warned; |
341 | ||
0c78039f HMH |
342 | struct thinkpad_id_data { |
343 | unsigned int vendor; /* ThinkPad vendor: | |
344 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
345 | ||
346 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
347 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
348 | ||
050df107 | 349 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 350 | u16 ec_model; |
050df107 HMH |
351 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
352 | u16 ec_release; | |
0c78039f | 353 | |
8c74adbc HMH |
354 | char *model_str; /* ThinkPad T43 */ |
355 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 356 | }; |
0c78039f HMH |
357 | static struct thinkpad_id_data thinkpad_id; |
358 | ||
8fef502e HMH |
359 | static enum { |
360 | TPACPI_LIFE_INIT = 0, | |
361 | TPACPI_LIFE_RUNNING, | |
362 | TPACPI_LIFE_EXITING, | |
363 | } tpacpi_lifecycle; | |
364 | ||
b21a15f6 HMH |
365 | static int experimental; |
366 | static u32 dbg_level; | |
367 | ||
e0e3c061 HMH |
368 | static struct workqueue_struct *tpacpi_wq; |
369 | ||
75bd3bf2 HMH |
370 | enum led_status_t { |
371 | TPACPI_LED_OFF = 0, | |
372 | TPACPI_LED_ON, | |
373 | TPACPI_LED_BLINK, | |
374 | }; | |
375 | ||
86ec0c2c | 376 | /* tpacpi LED class */ |
4fa6811b HMH |
377 | struct tpacpi_led_classdev { |
378 | struct led_classdev led_classdev; | |
edf2d778 | 379 | int led; |
4fa6811b HMH |
380 | }; |
381 | ||
77775838 HMH |
382 | /* brightness level capabilities */ |
383 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
384 | ||
a73f3091 HMH |
385 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
386 | static int dbg_wlswemul; | |
90ab5ee9 | 387 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 388 | static int dbg_bluetoothemul; |
90ab5ee9 | 389 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 390 | static int dbg_wwanemul; |
90ab5ee9 | 391 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 392 | static int dbg_uwbemul; |
90ab5ee9 | 393 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
394 | #endif |
395 | ||
396 | ||
3dcc2c3b HMH |
397 | /************************************************************************* |
398 | * Debugging helpers | |
399 | */ | |
400 | ||
0978e012 JP |
401 | #define dbg_printk(a_dbg_level, format, arg...) \ |
402 | do { \ | |
403 | if (dbg_level & (a_dbg_level)) \ | |
404 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
405 | __func__, ##arg); \ | |
406 | } while (0) | |
3dcc2c3b HMH |
407 | |
408 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
409 | #define vdbg_printk dbg_printk | |
410 | static const char *str_supported(int is_supported); | |
411 | #else | |
0978e012 JP |
412 | static inline const char *str_supported(int is_supported) { return ""; } |
413 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 414 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
415 | #endif |
416 | ||
73a94d86 HMH |
417 | static void tpacpi_log_usertask(const char * const what) |
418 | { | |
0978e012 JP |
419 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
420 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
421 | } |
422 | ||
0978e012 JP |
423 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
424 | do { \ | |
425 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
426 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
427 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
428 | what, task_tgid_vnr(current), ## arg); \ | |
429 | } \ | |
430 | } while (0) | |
3dcc2c3b | 431 | |
7d95a3d5 HMH |
432 | /* |
433 | * Quirk handling helpers | |
434 | * | |
435 | * ThinkPad IDs and versions seen in the field so far | |
436 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
437 | * | |
438 | * We use values well outside that range as specials. | |
439 | */ | |
440 | ||
441 | #define TPACPI_MATCH_ANY 0xffffU | |
442 | #define TPACPI_MATCH_UNKNOWN 0U | |
443 | ||
444 | /* TPID('1', 'Y') == 0x5931 */ | |
445 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
446 | ||
447 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
448 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
449 | .bios = TPID(__id1, __id2), \ | |
450 | .ec = TPACPI_MATCH_ANY, \ | |
451 | .quirks = (__quirk) } | |
452 | ||
453 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
454 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
455 | .bios = TPID(__id1, __id2), \ | |
456 | .ec = TPACPI_MATCH_ANY, \ | |
457 | .quirks = (__quirk) } | |
458 | ||
a112ceee HMH |
459 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
460 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
461 | .bios = TPACPI_MATCH_ANY, \ | |
462 | .ec = TPID(__id1, __id2), \ | |
463 | .quirks = (__quirk) } | |
464 | ||
7d95a3d5 HMH |
465 | struct tpacpi_quirk { |
466 | unsigned int vendor; | |
467 | u16 bios; | |
468 | u16 ec; | |
469 | unsigned long quirks; | |
470 | }; | |
471 | ||
472 | /** | |
473 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
474 | * @qlist: array of &struct tpacpi_quirk | |
475 | * @qlist_size: number of elements in @qlist | |
476 | * | |
477 | * Iterates over a quirks list until one is found that matches the | |
478 | * ThinkPad's vendor, BIOS and EC model. | |
479 | * | |
480 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
481 | * the matching &struct tpacpi_quirk entry. | |
482 | * | |
483 | * The match criteria is: vendor, ec and bios much match. | |
484 | */ | |
485 | static unsigned long __init tpacpi_check_quirks( | |
486 | const struct tpacpi_quirk *qlist, | |
487 | unsigned int qlist_size) | |
488 | { | |
489 | while (qlist_size) { | |
490 | if ((qlist->vendor == thinkpad_id.vendor || | |
491 | qlist->vendor == TPACPI_MATCH_ANY) && | |
492 | (qlist->bios == thinkpad_id.bios_model || | |
493 | qlist->bios == TPACPI_MATCH_ANY) && | |
494 | (qlist->ec == thinkpad_id.ec_model || | |
495 | qlist->ec == TPACPI_MATCH_ANY)) | |
496 | return qlist->quirks; | |
497 | ||
498 | qlist_size--; | |
499 | qlist++; | |
500 | } | |
501 | return 0; | |
502 | } | |
503 | ||
e28393c0 HMH |
504 | static inline bool __pure __init tpacpi_is_lenovo(void) |
505 | { | |
506 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
507 | } | |
508 | ||
509 | static inline bool __pure __init tpacpi_is_ibm(void) | |
510 | { | |
511 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
512 | } | |
7d95a3d5 | 513 | |
56b6aeb0 HMH |
514 | /**************************************************************************** |
515 | **************************************************************************** | |
516 | * | |
517 | * ACPI Helpers and device model | |
518 | * | |
519 | **************************************************************************** | |
520 | ****************************************************************************/ | |
521 | ||
522 | /************************************************************************* | |
523 | * ACPI basic handles | |
524 | */ | |
1da177e4 | 525 | |
94954cc6 | 526 | static acpi_handle root_handle; |
437e470c | 527 | static acpi_handle ec_handle; |
1da177e4 | 528 | |
e0c7dfe7 | 529 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 530 | static acpi_handle object##_handle; \ |
3bd01896 | 531 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
532 | &parent##_handle; \ |
533 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 534 | |
e0c7dfe7 HMH |
535 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
536 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 537 | |
35ff8b9f HMH |
538 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
539 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
540 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
541 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 542 | ); /* all others */ |
78f81cc4 | 543 | |
e0c7dfe7 | 544 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
545 | "^HKEY", /* R30, R31 */ |
546 | "HKEY", /* all others */ | |
56b6aeb0 | 547 | ); /* 570 */ |
78f81cc4 | 548 | |
56b6aeb0 HMH |
549 | /************************************************************************* |
550 | * ACPI helpers | |
a8b7a662 HMH |
551 | */ |
552 | ||
1da177e4 | 553 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 554 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
555 | { |
556 | char *fmt0 = fmt; | |
78f81cc4 | 557 | struct acpi_object_list params; |
e0c7dfe7 | 558 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
559 | struct acpi_buffer result, *resultp; |
560 | union acpi_object out_obj; | |
561 | acpi_status status; | |
562 | va_list ap; | |
563 | char res_type; | |
564 | int success; | |
565 | int quiet; | |
1da177e4 LT |
566 | |
567 | if (!*fmt) { | |
0978e012 | 568 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
569 | return 0; |
570 | } | |
571 | ||
572 | if (*fmt == 'q') { | |
573 | quiet = 1; | |
574 | fmt++; | |
575 | } else | |
576 | quiet = 0; | |
577 | ||
578 | res_type = *(fmt++); | |
579 | ||
580 | params.count = 0; | |
581 | params.pointer = &in_objs[0]; | |
582 | ||
583 | va_start(ap, fmt); | |
584 | while (*fmt) { | |
585 | char c = *(fmt++); | |
586 | switch (c) { | |
587 | case 'd': /* int */ | |
588 | in_objs[params.count].integer.value = va_arg(ap, int); | |
589 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
590 | break; | |
78f81cc4 | 591 | /* add more types as needed */ |
1da177e4 | 592 | default: |
5cac62ac AS |
593 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
594 | c); | |
21365851 | 595 | va_end(ap); |
1da177e4 LT |
596 | return 0; |
597 | } | |
598 | } | |
599 | va_end(ap); | |
600 | ||
78f81cc4 BD |
601 | if (res_type != 'v') { |
602 | result.length = sizeof(out_obj); | |
603 | result.pointer = &out_obj; | |
604 | resultp = &result; | |
605 | } else | |
606 | resultp = NULL; | |
1da177e4 | 607 | |
78f81cc4 | 608 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
609 | |
610 | switch (res_type) { | |
78f81cc4 | 611 | case 'd': /* int */ |
263f4a30 HMH |
612 | success = (status == AE_OK && |
613 | out_obj.type == ACPI_TYPE_INTEGER); | |
614 | if (success && res) | |
eceeb437 | 615 | *res = out_obj.integer.value; |
1da177e4 | 616 | break; |
78f81cc4 | 617 | case 'v': /* void */ |
1da177e4 LT |
618 | success = status == AE_OK; |
619 | break; | |
78f81cc4 | 620 | /* add more types as needed */ |
1da177e4 | 621 | default: |
5cac62ac AS |
622 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
623 | res_type); | |
1da177e4 LT |
624 | return 0; |
625 | } | |
626 | ||
56b6aeb0 | 627 | if (!success && !quiet) |
0978e012 | 628 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 629 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
630 | |
631 | return success; | |
632 | } | |
633 | ||
35ff8b9f | 634 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
635 | { |
636 | int v; | |
637 | ||
638 | if (ecrd_handle) { | |
639 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
640 | return 0; | |
641 | *p = v; | |
642 | } else { | |
643 | if (ec_read(i, p) < 0) | |
644 | return 0; | |
645 | } | |
646 | ||
647 | return 1; | |
648 | } | |
649 | ||
650 | static int acpi_ec_write(int i, u8 v) | |
651 | { | |
652 | if (ecwr_handle) { | |
653 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
654 | return 0; | |
655 | } else { | |
656 | if (ec_write(i, v) < 0) | |
657 | return 0; | |
658 | } | |
659 | ||
660 | return 1; | |
661 | } | |
662 | ||
c9bea99c HMH |
663 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
664 | { | |
665 | if (!cmos_handle) | |
666 | return -ENXIO; | |
667 | ||
668 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
669 | return -EIO; | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
56b6aeb0 HMH |
674 | /************************************************************************* |
675 | * ACPI device model | |
676 | */ | |
677 | ||
35ff8b9f HMH |
678 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
679 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 680 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 681 | |
ef07a5ab HMH |
682 | static void __init drv_acpi_handle_init(const char *name, |
683 | acpi_handle *handle, const acpi_handle parent, | |
684 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
685 | { |
686 | int i; | |
687 | acpi_status status; | |
688 | ||
5ae930e6 HMH |
689 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
690 | name); | |
691 | ||
56b6aeb0 HMH |
692 | for (i = 0; i < num_paths; i++) { |
693 | status = acpi_get_handle(parent, paths[i], handle); | |
694 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
695 | dbg_printk(TPACPI_DBG_INIT, |
696 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 697 | paths[i], name); |
56b6aeb0 HMH |
698 | return; |
699 | } | |
700 | } | |
701 | ||
5ae930e6 HMH |
702 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
703 | name); | |
56b6aeb0 HMH |
704 | *handle = NULL; |
705 | } | |
706 | ||
437e470c HMH |
707 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
708 | u32 level, void *context, void **return_value) | |
709 | { | |
46445b6b AL |
710 | struct acpi_device *dev; |
711 | if (!strcmp(context, "video")) { | |
712 | if (acpi_bus_get_device(handle, &dev)) | |
713 | return AE_OK; | |
714 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
715 | return AE_OK; | |
716 | } | |
717 | ||
437e470c HMH |
718 | *(acpi_handle *)return_value = handle; |
719 | ||
720 | return AE_CTRL_TERMINATE; | |
721 | } | |
722 | ||
723 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
724 | const char *hid, | |
725 | acpi_handle *handle) | |
726 | { | |
727 | acpi_status status; | |
728 | acpi_handle device_found; | |
729 | ||
46445b6b | 730 | BUG_ON(!name || !handle); |
437e470c HMH |
731 | vdbg_printk(TPACPI_DBG_INIT, |
732 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 733 | name, hid ? hid : "NULL"); |
437e470c HMH |
734 | |
735 | memset(&device_found, 0, sizeof(device_found)); | |
736 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
737 | (void *)name, &device_found); | |
738 | ||
739 | *handle = NULL; | |
740 | ||
741 | if (ACPI_SUCCESS(status)) { | |
742 | *handle = device_found; | |
743 | dbg_printk(TPACPI_DBG_INIT, | |
744 | "Found ACPI handle for %s\n", name); | |
745 | } else { | |
746 | vdbg_printk(TPACPI_DBG_INIT, | |
747 | "Could not locate an ACPI handle for %s: %s\n", | |
748 | name, acpi_format_exception(status)); | |
749 | } | |
750 | } | |
751 | ||
8d376cd6 | 752 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
753 | { |
754 | struct ibm_struct *ibm = data; | |
755 | ||
8fef502e HMH |
756 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
757 | return; | |
758 | ||
8d376cd6 | 759 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
760 | return; |
761 | ||
8d376cd6 | 762 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
763 | } |
764 | ||
8d376cd6 | 765 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
766 | { |
767 | acpi_status status; | |
5ae930e6 | 768 | int rc; |
56b6aeb0 | 769 | |
8d376cd6 HMH |
770 | BUG_ON(!ibm->acpi); |
771 | ||
772 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
773 | return 0; |
774 | ||
5ae930e6 | 775 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
776 | "setting up ACPI notify for %s\n", ibm->name); |
777 | ||
5ae930e6 HMH |
778 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
779 | if (rc < 0) { | |
0978e012 | 780 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
781 | return -ENODEV; |
782 | } | |
783 | ||
db89b4f0 | 784 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 785 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 786 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 787 | ibm->name); |
56b6aeb0 | 788 | |
8d376cd6 HMH |
789 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
790 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
791 | if (ACPI_FAILURE(status)) { |
792 | if (status == AE_ALREADY_EXISTS) { | |
5cac62ac AS |
793 | pr_notice("another device driver is already handling %s events\n", |
794 | ibm->name); | |
56b6aeb0 | 795 | } else { |
0978e012 | 796 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 797 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
798 | } |
799 | return -ENODEV; | |
800 | } | |
8d376cd6 | 801 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
802 | return 0; |
803 | } | |
804 | ||
8d376cd6 | 805 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
806 | { |
807 | return 0; | |
808 | } | |
809 | ||
6700121b | 810 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 811 | { |
5ae930e6 | 812 | int rc; |
56b6aeb0 | 813 | |
fe08bc4b HMH |
814 | dbg_printk(TPACPI_DBG_INIT, |
815 | "registering %s as an ACPI driver\n", ibm->name); | |
816 | ||
8d376cd6 HMH |
817 | BUG_ON(!ibm->acpi); |
818 | ||
819 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
820 | if (!ibm->acpi->driver) { | |
0978e012 | 821 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 822 | return -ENOMEM; |
56b6aeb0 HMH |
823 | } |
824 | ||
e0c7dfe7 | 825 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 826 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 827 | |
8d376cd6 | 828 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 829 | |
5ae930e6 HMH |
830 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
831 | if (rc < 0) { | |
0978e012 | 832 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 833 | ibm->name, rc); |
8d376cd6 HMH |
834 | kfree(ibm->acpi->driver); |
835 | ibm->acpi->driver = NULL; | |
5ae930e6 | 836 | } else if (!rc) |
8d376cd6 | 837 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 838 | |
5ae930e6 | 839 | return rc; |
56b6aeb0 HMH |
840 | } |
841 | ||
842 | ||
843 | /**************************************************************************** | |
844 | **************************************************************************** | |
845 | * | |
846 | * Procfs Helpers | |
847 | * | |
848 | **************************************************************************** | |
849 | ****************************************************************************/ | |
850 | ||
887965e6 | 851 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 852 | { |
887965e6 | 853 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
854 | |
855 | if (!ibm || !ibm->read) | |
856 | return -EINVAL; | |
887965e6 AD |
857 | return ibm->read(m); |
858 | } | |
56b6aeb0 | 859 | |
887965e6 AD |
860 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
861 | { | |
d9dda78b | 862 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
863 | } |
864 | ||
887965e6 | 865 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 866 | const char __user *userbuf, |
887965e6 | 867 | size_t count, loff_t *pos) |
56b6aeb0 | 868 | { |
d9dda78b | 869 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
870 | char *kernbuf; |
871 | int ret; | |
872 | ||
873 | if (!ibm || !ibm->write) | |
874 | return -EINVAL; | |
5b05d469 MB |
875 | if (count > PAGE_SIZE - 2) |
876 | return -EINVAL; | |
56b6aeb0 HMH |
877 | |
878 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
879 | if (!kernbuf) | |
880 | return -ENOMEM; | |
1da177e4 | 881 | |
56b6aeb0 HMH |
882 | if (copy_from_user(kernbuf, userbuf, count)) { |
883 | kfree(kernbuf); | |
884 | return -EFAULT; | |
885 | } | |
1da177e4 | 886 | |
56b6aeb0 HMH |
887 | kernbuf[count] = 0; |
888 | strcat(kernbuf, ","); | |
889 | ret = ibm->write(kernbuf); | |
890 | if (ret == 0) | |
891 | ret = count; | |
1da177e4 | 892 | |
56b6aeb0 HMH |
893 | kfree(kernbuf); |
894 | ||
895 | return ret; | |
1da177e4 LT |
896 | } |
897 | ||
887965e6 AD |
898 | static const struct file_operations dispatch_proc_fops = { |
899 | .owner = THIS_MODULE, | |
900 | .open = dispatch_proc_open, | |
901 | .read = seq_read, | |
902 | .llseek = seq_lseek, | |
903 | .release = single_release, | |
904 | .write = dispatch_proc_write, | |
905 | }; | |
906 | ||
1da177e4 LT |
907 | static char *next_cmd(char **cmds) |
908 | { | |
909 | char *start = *cmds; | |
910 | char *end; | |
911 | ||
912 | while ((end = strchr(start, ',')) && end == start) | |
913 | start = end + 1; | |
914 | ||
915 | if (!end) | |
916 | return NULL; | |
917 | ||
918 | *end = 0; | |
919 | *cmds = end + 1; | |
920 | return start; | |
921 | } | |
922 | ||
56b6aeb0 | 923 | |
54ae1501 HMH |
924 | /**************************************************************************** |
925 | **************************************************************************** | |
926 | * | |
7f5d1cd6 | 927 | * Device model: input, hwmon and platform |
54ae1501 HMH |
928 | * |
929 | **************************************************************************** | |
930 | ****************************************************************************/ | |
931 | ||
94954cc6 | 932 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 933 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 934 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 935 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 936 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 937 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 938 | |
3567a4e2 | 939 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 940 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
941 | { |
942 | struct ibm_struct *ibm, *itmp; | |
943 | ||
944 | list_for_each_entry_safe(ibm, itmp, | |
945 | &tpacpi_all_drivers, | |
946 | all_drivers) { | |
947 | if (ibm->suspend) | |
fd3c3a42 | 948 | (ibm->suspend)(); |
083f1760 HMH |
949 | } |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
4959a781 | 954 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
955 | { |
956 | struct ibm_struct *ibm, *itmp; | |
957 | ||
958 | list_for_each_entry_safe(ibm, itmp, | |
959 | &tpacpi_all_drivers, | |
960 | all_drivers) { | |
961 | if (ibm->resume) | |
962 | (ibm->resume)(); | |
963 | } | |
964 | ||
965 | return 0; | |
966 | } | |
3567a4e2 | 967 | #endif |
e295e850 | 968 | |
4959a781 RW |
969 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
970 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
971 | ||
90d9d3c7 HMH |
972 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
973 | { | |
974 | struct ibm_struct *ibm, *itmp; | |
975 | ||
976 | list_for_each_entry_safe(ibm, itmp, | |
977 | &tpacpi_all_drivers, | |
978 | all_drivers) { | |
979 | if (ibm->shutdown) | |
980 | (ibm->shutdown)(); | |
981 | } | |
982 | } | |
983 | ||
54ae1501 HMH |
984 | static struct platform_driver tpacpi_pdriver = { |
985 | .driver = { | |
e0c7dfe7 | 986 | .name = TPACPI_DRVR_NAME, |
4959a781 | 987 | .pm = &tpacpi_pm, |
54ae1501 | 988 | }, |
90d9d3c7 | 989 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
990 | }; |
991 | ||
7fd40029 HMH |
992 | static struct platform_driver tpacpi_hwmon_pdriver = { |
993 | .driver = { | |
e0c7dfe7 | 994 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
995 | }, |
996 | }; | |
54ae1501 | 997 | |
176750d6 | 998 | /************************************************************************* |
b21a15f6 | 999 | * sysfs support helpers |
176750d6 HMH |
1000 | */ |
1001 | ||
b21a15f6 HMH |
1002 | struct attribute_set { |
1003 | unsigned int members, max_members; | |
1004 | struct attribute_group group; | |
176750d6 HMH |
1005 | }; |
1006 | ||
7252374a HMH |
1007 | struct attribute_set_obj { |
1008 | struct attribute_set s; | |
1009 | struct attribute *a; | |
1010 | } __attribute__((packed)); | |
1011 | ||
1012 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1013 | const char *name) |
7252374a HMH |
1014 | { |
1015 | struct attribute_set_obj *sobj; | |
1016 | ||
1017 | if (max_members == 0) | |
1018 | return NULL; | |
1019 | ||
1020 | /* Allocates space for implicit NULL at the end too */ | |
1021 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1022 | max_members * sizeof(struct attribute *), | |
1023 | GFP_KERNEL); | |
1024 | if (!sobj) | |
1025 | return NULL; | |
1026 | sobj->s.max_members = max_members; | |
1027 | sobj->s.group.attrs = &sobj->a; | |
1028 | sobj->s.group.name = name; | |
1029 | ||
1030 | return &sobj->s; | |
1031 | } | |
1032 | ||
f74a27d4 HMH |
1033 | #define destroy_attr_set(_set) \ |
1034 | kfree(_set); | |
1035 | ||
7252374a | 1036 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1037 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1038 | { |
1039 | if (!s || !attr) | |
1040 | return -EINVAL; | |
1041 | ||
1042 | if (s->members >= s->max_members) | |
1043 | return -ENOMEM; | |
1044 | ||
1045 | s->group.attrs[s->members] = attr; | |
1046 | s->members++; | |
1047 | ||
1048 | return 0; | |
1049 | } | |
1050 | ||
35ff8b9f | 1051 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1052 | struct attribute **attr, |
1053 | unsigned int count) | |
1054 | { | |
1055 | int i, res; | |
1056 | ||
1057 | for (i = 0; i < count; i++) { | |
1058 | res = add_to_attr_set(s, attr[i]); | |
1059 | if (res) | |
1060 | return res; | |
1061 | } | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
35ff8b9f | 1066 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1067 | { |
1068 | sysfs_remove_group(kobj, &s->group); | |
1069 | destroy_attr_set(s); | |
1070 | } | |
1071 | ||
f74a27d4 HMH |
1072 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1073 | sysfs_create_group(_kobj, &_attr_set->group) | |
1074 | ||
7252374a HMH |
1075 | static int parse_strtoul(const char *buf, |
1076 | unsigned long max, unsigned long *value) | |
1077 | { | |
1078 | char *endp; | |
1079 | ||
e7d2860b AGR |
1080 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1081 | endp = skip_spaces(endp); | |
7252374a HMH |
1082 | if (*endp || *value > max) |
1083 | return -EINVAL; | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
d64c81c4 HMH |
1088 | static void tpacpi_disable_brightness_delay(void) |
1089 | { | |
1090 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1091 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1092 | } |
1093 | ||
19d337df JB |
1094 | static void printk_deprecated_attribute(const char * const what, |
1095 | const char * const details) | |
1096 | { | |
1097 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
5cac62ac | 1098 | pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n", |
19d337df JB |
1099 | what, details); |
1100 | } | |
1101 | ||
1102 | /************************************************************************* | |
1103 | * rfkill and radio control support helpers | |
1104 | */ | |
1105 | ||
1106 | /* | |
1107 | * ThinkPad-ACPI firmware handling model: | |
1108 | * | |
1109 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1110 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1111 | * as expected. It overrides all radio state in firmware | |
1112 | * | |
1113 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1114 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1115 | * | |
1116 | * The only time there are shadow radio state changes, is when | |
1117 | * masked-off hotkeys are used. | |
1118 | */ | |
1119 | ||
1120 | /* | |
1121 | * Internal driver API for radio state: | |
1122 | * | |
1123 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1124 | * bool: true means radio blocked (off) | |
1125 | */ | |
1126 | enum tpacpi_rfkill_state { | |
1127 | TPACPI_RFK_RADIO_OFF = 0, | |
1128 | TPACPI_RFK_RADIO_ON | |
1129 | }; | |
1130 | ||
1131 | /* rfkill switches */ | |
1132 | enum tpacpi_rfk_id { | |
1133 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1134 | TPACPI_RFK_WWAN_SW_ID, | |
1135 | TPACPI_RFK_UWB_SW_ID, | |
1136 | TPACPI_RFK_SW_MAX | |
1137 | }; | |
1138 | ||
1139 | static const char *tpacpi_rfkill_names[] = { | |
1140 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1141 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1142 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1143 | [TPACPI_RFK_SW_MAX] = NULL | |
1144 | }; | |
1145 | ||
1146 | /* ThinkPad-ACPI rfkill subdriver */ | |
1147 | struct tpacpi_rfk { | |
1148 | struct rfkill *rfkill; | |
1149 | enum tpacpi_rfk_id id; | |
1150 | const struct tpacpi_rfk_ops *ops; | |
1151 | }; | |
1152 | ||
1153 | struct tpacpi_rfk_ops { | |
1154 | /* firmware interface */ | |
1155 | int (*get_status)(void); | |
1156 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1157 | }; | |
1158 | ||
1159 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1160 | ||
1161 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1162 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1163 | { | |
1164 | int status; | |
1165 | ||
1166 | if (!tp_rfk) | |
1167 | return -ENODEV; | |
1168 | ||
1169 | status = (tp_rfk->ops->get_status)(); | |
1170 | if (status < 0) | |
1171 | return status; | |
1172 | ||
1173 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1174 | (status == TPACPI_RFK_RADIO_OFF)); | |
1175 | ||
1176 | return status; | |
1177 | } | |
1178 | ||
1179 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1180 | static void tpacpi_rfk_update_swstate_all(void) | |
1181 | { | |
1182 | unsigned int i; | |
1183 | ||
1184 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1185 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1186 | } | |
1187 | ||
1188 | /* | |
1189 | * Sync the HW-blocking state of all rfkill switches, | |
1190 | * do notice it causes the rfkill core to schedule uevents | |
1191 | */ | |
1192 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1193 | { | |
1194 | unsigned int i; | |
1195 | struct tpacpi_rfk *tp_rfk; | |
1196 | ||
1197 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1198 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1199 | if (tp_rfk) { | |
1200 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1201 | blocked)) { | |
1202 | /* ignore -- we track sw block */ | |
1203 | } | |
1204 | } | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | /* Call to get the WLSW state from the firmware */ | |
1209 | static int hotkey_get_wlsw(void); | |
1210 | ||
1211 | /* Call to query WLSW state and update all rfkill switches */ | |
1212 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1213 | { | |
1214 | int res = hotkey_get_wlsw(); | |
1215 | int hw_blocked; | |
1216 | ||
1217 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1218 | if (res < 0) | |
1219 | return false; | |
1220 | ||
1221 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1222 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1223 | ||
1224 | return hw_blocked; | |
1225 | } | |
1226 | ||
1227 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1228 | { | |
1229 | struct tpacpi_rfk *tp_rfk = data; | |
1230 | int res; | |
1231 | ||
1232 | dbg_printk(TPACPI_DBG_RFKILL, | |
1233 | "request to change radio state to %s\n", | |
1234 | blocked ? "blocked" : "unblocked"); | |
1235 | ||
1236 | /* try to set radio state */ | |
1237 | res = (tp_rfk->ops->set_status)(blocked ? | |
1238 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1239 | ||
1240 | /* and update the rfkill core with whatever the FW really did */ | |
1241 | tpacpi_rfk_update_swstate(tp_rfk); | |
1242 | ||
1243 | return (res < 0) ? res : 0; | |
1244 | } | |
1245 | ||
1246 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1247 | .set_block = tpacpi_rfk_hook_set_block, | |
1248 | }; | |
1249 | ||
1250 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1251 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1252 | const enum rfkill_type rfktype, |
1253 | const char *name, | |
19d337df | 1254 | const bool set_default) |
0e74dc26 | 1255 | { |
19d337df | 1256 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1257 | int res; |
06d5caf4 | 1258 | bool sw_state = false; |
5451a923 | 1259 | bool hw_state; |
06d5caf4 | 1260 | int sw_status; |
90d9d3c7 | 1261 | |
19d337df JB |
1262 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1263 | ||
19d337df JB |
1264 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1265 | if (atp_rfk) | |
1266 | atp_rfk->rfkill = rfkill_alloc(name, | |
1267 | &tpacpi_pdev->dev, | |
1268 | rfktype, | |
1269 | &tpacpi_rfk_rfkill_ops, | |
1270 | atp_rfk); | |
1271 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1272 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1273 | kfree(atp_rfk); |
0e74dc26 HMH |
1274 | return -ENOMEM; |
1275 | } | |
1276 | ||
19d337df JB |
1277 | atp_rfk->id = id; |
1278 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1279 | |
06d5caf4 AJ |
1280 | sw_status = (tp_rfkops->get_status)(); |
1281 | if (sw_status < 0) { | |
0978e012 JP |
1282 | pr_err("failed to read initial state for %s, error %d\n", |
1283 | name, sw_status); | |
b3fa1329 | 1284 | } else { |
06d5caf4 | 1285 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1286 | if (set_default) { |
1287 | /* try to keep the initial state, since we ask the | |
1288 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1289 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1290 | } |
1291 | } | |
5451a923 HMH |
1292 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1293 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1294 | |
1295 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1296 | if (res < 0) { |
0978e012 | 1297 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1298 | rfkill_destroy(atp_rfk->rfkill); |
1299 | kfree(atp_rfk); | |
0e74dc26 HMH |
1300 | return res; |
1301 | } | |
1302 | ||
19d337df | 1303 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1304 | |
0978e012 | 1305 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1306 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1307 | return 0; |
1308 | } | |
1309 | ||
19d337df | 1310 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1311 | { |
19d337df JB |
1312 | struct tpacpi_rfk *tp_rfk; |
1313 | ||
1314 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1315 | ||
1316 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1317 | if (tp_rfk) { | |
1318 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1319 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1320 | tpacpi_rfkill_switches[id] = NULL; |
1321 | kfree(tp_rfk); | |
1322 | } | |
73a94d86 HMH |
1323 | } |
1324 | ||
1325 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1326 | { | |
1327 | printk_deprecated_attribute(what, | |
1328 | "Please switch to generic rfkill before year 2010"); | |
1329 | } | |
1330 | ||
19d337df JB |
1331 | /* sysfs <radio> enable ------------------------------------------------ */ |
1332 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1333 | struct device_attribute *attr, | |
1334 | char *buf) | |
1335 | { | |
1336 | int status; | |
1337 | ||
1338 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1339 | ||
1340 | /* This is in the ABI... */ | |
1341 | if (tpacpi_rfk_check_hwblock_state()) { | |
1342 | status = TPACPI_RFK_RADIO_OFF; | |
1343 | } else { | |
1344 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1345 | if (status < 0) | |
1346 | return status; | |
1347 | } | |
1348 | ||
1349 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1350 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1351 | } | |
1352 | ||
1353 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1354 | struct device_attribute *attr, | |
1355 | const char *buf, size_t count) | |
1356 | { | |
1357 | unsigned long t; | |
1358 | int res; | |
1359 | ||
1360 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1361 | ||
1362 | if (parse_strtoul(buf, 1, &t)) | |
1363 | return -EINVAL; | |
1364 | ||
1365 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1366 | ||
1367 | /* This is in the ABI... */ | |
1368 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1369 | return -EPERM; | |
1370 | ||
1371 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1372 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1373 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1374 | ||
1375 | return (res < 0) ? res : count; | |
1376 | } | |
1377 | ||
1378 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1379 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1380 | { |
19d337df | 1381 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1382 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1383 | else { |
1384 | int status; | |
1385 | ||
1386 | /* This is in the ABI... */ | |
1387 | if (tpacpi_rfk_check_hwblock_state()) { | |
1388 | status = TPACPI_RFK_RADIO_OFF; | |
1389 | } else { | |
1390 | status = tpacpi_rfk_update_swstate( | |
1391 | tpacpi_rfkill_switches[id]); | |
1392 | if (status < 0) | |
1393 | return status; | |
1394 | } | |
1395 | ||
887965e6 | 1396 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1397 | (status == TPACPI_RFK_RADIO_ON) ? |
1398 | "enabled" : "disabled"); | |
887965e6 | 1399 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1400 | } |
1401 | ||
887965e6 | 1402 | return 0; |
19d337df JB |
1403 | } |
1404 | ||
1405 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1406 | { | |
1407 | char *cmd; | |
1408 | int status = -1; | |
1409 | int res = 0; | |
1410 | ||
1411 | if (id >= TPACPI_RFK_SW_MAX) | |
1412 | return -ENODEV; | |
1413 | ||
1414 | while ((cmd = next_cmd(&buf))) { | |
1415 | if (strlencmp(cmd, "enable") == 0) | |
1416 | status = TPACPI_RFK_RADIO_ON; | |
1417 | else if (strlencmp(cmd, "disable") == 0) | |
1418 | status = TPACPI_RFK_RADIO_OFF; | |
1419 | else | |
1420 | return -EINVAL; | |
1421 | } | |
1422 | ||
1423 | if (status != -1) { | |
1424 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1425 | (status == TPACPI_RFK_RADIO_ON) ? | |
1426 | "enable" : "disable", | |
1427 | tpacpi_rfkill_names[id]); | |
1428 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1429 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1430 | } | |
1431 | ||
1432 | return res; | |
1433 | } | |
1434 | ||
56b6aeb0 | 1435 | /************************************************************************* |
b21a15f6 | 1436 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1437 | */ |
1438 | ||
b21a15f6 HMH |
1439 | /* interface_version --------------------------------------------------- */ |
1440 | static ssize_t tpacpi_driver_interface_version_show( | |
1441 | struct device_driver *drv, | |
1442 | char *buf) | |
1da177e4 | 1443 | { |
b21a15f6 HMH |
1444 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1445 | } | |
1446 | ||
1447 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1448 | tpacpi_driver_interface_version_show, NULL); | |
1449 | ||
1450 | /* debug_level --------------------------------------------------------- */ | |
1451 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1452 | char *buf) | |
1453 | { | |
1454 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1455 | } | |
1456 | ||
1457 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1458 | const char *buf, size_t count) | |
1459 | { | |
1460 | unsigned long t; | |
1461 | ||
1462 | if (parse_strtoul(buf, 0xffff, &t)) | |
1463 | return -EINVAL; | |
1464 | ||
1465 | dbg_level = t; | |
1466 | ||
1467 | return count; | |
1468 | } | |
1469 | ||
1470 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1471 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1472 | ||
1473 | /* version ------------------------------------------------------------- */ | |
1474 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1475 | char *buf) | |
1476 | { | |
35ff8b9f HMH |
1477 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1478 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1479 | } |
1480 | ||
1481 | static DRIVER_ATTR(version, S_IRUGO, | |
1482 | tpacpi_driver_version_show, NULL); | |
1483 | ||
1484 | /* --------------------------------------------------------------------- */ | |
1485 | ||
a73f3091 HMH |
1486 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1487 | ||
a73f3091 HMH |
1488 | /* wlsw_emulstate ------------------------------------------------------ */ |
1489 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1490 | char *buf) | |
1491 | { | |
1492 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1493 | } | |
1494 | ||
1495 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1496 | const char *buf, size_t count) | |
1497 | { | |
1498 | unsigned long t; | |
1499 | ||
1500 | if (parse_strtoul(buf, 1, &t)) | |
1501 | return -EINVAL; | |
1502 | ||
19d337df | 1503 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1504 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1505 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1506 | } | |
a73f3091 HMH |
1507 | |
1508 | return count; | |
1509 | } | |
1510 | ||
1511 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1512 | tpacpi_driver_wlsw_emulstate_show, | |
1513 | tpacpi_driver_wlsw_emulstate_store); | |
1514 | ||
1515 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1516 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1517 | struct device_driver *drv, | |
1518 | char *buf) | |
1519 | { | |
1520 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1521 | } | |
1522 | ||
1523 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1524 | struct device_driver *drv, | |
1525 | const char *buf, size_t count) | |
1526 | { | |
1527 | unsigned long t; | |
1528 | ||
1529 | if (parse_strtoul(buf, 1, &t)) | |
1530 | return -EINVAL; | |
1531 | ||
1532 | tpacpi_bluetooth_emulstate = !!t; | |
1533 | ||
1534 | return count; | |
1535 | } | |
1536 | ||
1537 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1538 | tpacpi_driver_bluetooth_emulstate_show, | |
1539 | tpacpi_driver_bluetooth_emulstate_store); | |
1540 | ||
1541 | /* wwan_emulstate ------------------------------------------------- */ | |
1542 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1543 | struct device_driver *drv, | |
1544 | char *buf) | |
1545 | { | |
1546 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1547 | } | |
1548 | ||
1549 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1550 | struct device_driver *drv, | |
1551 | const char *buf, size_t count) | |
1552 | { | |
1553 | unsigned long t; | |
1554 | ||
1555 | if (parse_strtoul(buf, 1, &t)) | |
1556 | return -EINVAL; | |
1557 | ||
1558 | tpacpi_wwan_emulstate = !!t; | |
1559 | ||
1560 | return count; | |
1561 | } | |
1562 | ||
1563 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1564 | tpacpi_driver_wwan_emulstate_show, | |
1565 | tpacpi_driver_wwan_emulstate_store); | |
1566 | ||
0045c0aa HMH |
1567 | /* uwb_emulstate ------------------------------------------------- */ |
1568 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1569 | struct device_driver *drv, | |
1570 | char *buf) | |
1571 | { | |
1572 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1573 | } | |
1574 | ||
1575 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1576 | struct device_driver *drv, | |
1577 | const char *buf, size_t count) | |
1578 | { | |
1579 | unsigned long t; | |
1580 | ||
1581 | if (parse_strtoul(buf, 1, &t)) | |
1582 | return -EINVAL; | |
1583 | ||
1584 | tpacpi_uwb_emulstate = !!t; | |
1585 | ||
1586 | return count; | |
1587 | } | |
1588 | ||
1589 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1590 | tpacpi_driver_uwb_emulstate_show, | |
1591 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1592 | #endif |
1593 | ||
1594 | /* --------------------------------------------------------------------- */ | |
1595 | ||
35ff8b9f | 1596 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1597 | &driver_attr_debug_level, &driver_attr_version, |
1598 | &driver_attr_interface_version, | |
1599 | }; | |
1600 | ||
1601 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1602 | { | |
1603 | int i, res; | |
1604 | ||
1605 | i = 0; | |
1606 | res = 0; | |
1607 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1608 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1609 | i++; | |
1610 | } | |
1611 | ||
a73f3091 HMH |
1612 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1613 | if (!res && dbg_wlswemul) | |
1614 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1615 | if (!res && dbg_bluetoothemul) | |
1616 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1617 | if (!res && dbg_wwanemul) | |
1618 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1619 | if (!res && dbg_uwbemul) |
1620 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1621 | #endif |
1622 | ||
b21a15f6 HMH |
1623 | return res; |
1624 | } | |
1625 | ||
1626 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1627 | { | |
1628 | int i; | |
1629 | ||
35ff8b9f | 1630 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1631 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1632 | |
1633 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1634 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1635 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1636 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1637 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1638 | #endif |
b21a15f6 HMH |
1639 | } |
1640 | ||
600a99fa HMH |
1641 | /************************************************************************* |
1642 | * Firmware Data | |
1643 | */ | |
1644 | ||
1645 | /* | |
1646 | * Table of recommended minimum BIOS versions | |
1647 | * | |
1648 | * Reasons for listing: | |
9ddc5b6f | 1649 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1650 | * bugs and bad ACPI behaviour on older versions |
1651 | * | |
1652 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1653 | * | |
1654 | * 3. BIOS with known reduced functionality in older versions | |
1655 | * | |
1656 | * We recommend the latest BIOS and EC version. | |
1657 | * We only support the latest BIOS and EC fw version as a rule. | |
1658 | * | |
1659 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1660 | * Information from users in ThinkWiki | |
e675abaf HMH |
1661 | * |
1662 | * WARNING: we use this table also to detect that the machine is | |
1663 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1664 | */ |
1665 | ||
1666 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1667 | { .vendor = (__v), \ | |
1668 | .bios = TPID(__id1, __id2), \ | |
1669 | .ec = TPACPI_MATCH_ANY, \ | |
1670 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1671 | | (__bv1) << 8 | (__bv2) } | |
1672 | ||
1673 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1674 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1675 | { .vendor = (__v), \ |
1676 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1677 | .ec = __eid, \ |
600a99fa HMH |
1678 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1679 | | (__bv1) << 8 | (__bv2) } | |
1680 | ||
1681 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1682 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1683 | ||
275014ae | 1684 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1685 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1686 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1687 | __bv1, __bv2, TPID(__id1, __id2), \ |
1688 | __ev1, __ev2), \ | |
1689 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1690 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1691 | __ev1, __ev2) | |
600a99fa | 1692 | |
275014ae | 1693 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1694 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1695 | __eid1, __eid2, __ev1, __ev2) \ | |
1696 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1697 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1698 | __ev1, __ev2), \ | |
1699 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1700 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1701 | __ev1, __ev2) | |
600a99fa HMH |
1702 | |
1703 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1704 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1705 | ||
1706 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1707 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1708 | __bv1, __bv2, TPID(__id1, __id2), \ |
1709 | __ev1, __ev2) | |
600a99fa HMH |
1710 | |
1711 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1712 | __eid1, __eid2, __ev1, __ev2) \ | |
1713 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1714 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1715 | __ev1, __ev2) | |
600a99fa HMH |
1716 | |
1717 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1718 | /* Numeric models ------------------ */ | |
1719 | /* FW MODEL BIOS VERS */ | |
1720 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1721 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1722 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1723 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1724 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1725 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1726 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1727 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1728 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1729 | ||
1730 | /* A-series ------------------------- */ | |
1731 | /* FW MODEL BIOS VERS EC VERS */ | |
1732 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1733 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1734 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1735 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1736 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1737 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1738 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1739 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1740 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1741 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1742 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1743 | ||
1744 | /* G-series ------------------------- */ | |
1745 | /* FW MODEL BIOS VERS */ | |
1746 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1747 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1748 | ||
1749 | /* R-series, T-series --------------- */ | |
1750 | /* FW MODEL BIOS VERS EC VERS */ | |
1751 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1752 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1753 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1754 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1755 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1756 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1757 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1758 | T40/p, T41/p, T42/p (1) */ | |
1759 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1760 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1761 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1762 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1763 | ||
1764 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1765 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1766 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1767 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1768 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1769 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1770 | ||
1771 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1772 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1773 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1774 | |
1775 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1776 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1777 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1778 | ||
1779 | /* X-series ------------------------- */ | |
1780 | /* FW MODEL BIOS VERS EC VERS */ | |
1781 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1782 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1783 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1784 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1785 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1786 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1787 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1788 | ||
90765c6a HMH |
1789 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1790 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1791 | |
1792 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1793 | /* (1) - older versions known to lack functionality */ | |
1794 | }; | |
1795 | ||
1796 | #undef TPV_QL1 | |
1797 | #undef TPV_QL0 | |
1798 | #undef TPV_QI2 | |
1799 | #undef TPV_QI1 | |
1800 | #undef TPV_QI0 | |
1801 | #undef TPV_Q_X | |
1802 | #undef TPV_Q | |
1803 | ||
1804 | static void __init tpacpi_check_outdated_fw(void) | |
1805 | { | |
1806 | unsigned long fwvers; | |
1807 | u16 ec_version, bios_version; | |
1808 | ||
1809 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1810 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1811 | ||
1812 | if (!fwvers) | |
1813 | return; | |
1814 | ||
1815 | bios_version = fwvers & 0xffffU; | |
1816 | ec_version = (fwvers >> 16) & 0xffffU; | |
1817 | ||
1818 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1819 | if ((bios_version > thinkpad_id.bios_release) || | |
1820 | (ec_version > thinkpad_id.ec_release && | |
1821 | ec_version != TPACPI_MATCH_ANY)) { | |
1822 | /* | |
1823 | * The changelogs would let us track down the exact | |
1824 | * reason, but it is just too much of a pain to track | |
1825 | * it. We only list BIOSes that are either really | |
1826 | * broken, or really stable to begin with, so it is | |
1827 | * best if the user upgrades the firmware anyway. | |
1828 | */ | |
0978e012 | 1829 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
5cac62ac | 1830 | pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n"); |
600a99fa HMH |
1831 | } |
1832 | } | |
1833 | ||
e675abaf HMH |
1834 | static bool __init tpacpi_is_fw_known(void) |
1835 | { | |
1836 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1837 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1838 | } | |
1839 | ||
b21a15f6 HMH |
1840 | /**************************************************************************** |
1841 | **************************************************************************** | |
1842 | * | |
1843 | * Subdrivers | |
1844 | * | |
1845 | **************************************************************************** | |
1846 | ****************************************************************************/ | |
1847 | ||
1848 | /************************************************************************* | |
7a43f788 | 1849 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1850 | */ |
1851 | ||
887965e6 | 1852 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1853 | { |
887965e6 AD |
1854 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1855 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1856 | return 0; | |
1da177e4 LT |
1857 | } |
1858 | ||
a5763f22 HMH |
1859 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1860 | .name = "driver", | |
1861 | .read = thinkpad_acpi_driver_read, | |
1862 | }; | |
1863 | ||
56b6aeb0 HMH |
1864 | /************************************************************************* |
1865 | * Hotkey subdriver | |
1866 | */ | |
1867 | ||
0d922e3b HMH |
1868 | /* |
1869 | * ThinkPad firmware event model | |
1870 | * | |
1871 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1872 | * notifications (which follow the ACPI standard), and a private event | |
1873 | * interface. | |
1874 | * | |
1875 | * The private event interface also issues events for the hotkeys. As | |
1876 | * the driver gained features, the event handling code ended up being | |
1877 | * built around the hotkey subdriver. This will need to be refactored | |
1878 | * to a more formal event API eventually. | |
1879 | * | |
1880 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1881 | * such as "brightness has changed", "volume has changed", depending on | |
1882 | * the ThinkPad model and how the firmware is operating. | |
1883 | * | |
1884 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1885 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1886 | * firmware model and version. | |
1887 | */ | |
1888 | ||
f74a27d4 HMH |
1889 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1890 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1891 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1892 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1893 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1894 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1895 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1896 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1897 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1898 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1899 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1900 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1901 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1902 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1903 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1904 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1905 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1906 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1907 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1908 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1909 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1910 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1911 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1912 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1913 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1914 | TP_ACPI_HOTKEYSCAN_UNK1, |
1915 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1916 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1917 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1918 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1919 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1920 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1921 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1922 | ||
149c8c75 CK |
1923 | /* Adaptive keyboard keycodes */ |
1924 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
1925 | TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
6a68d855 BN |
1926 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, |
1927 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1928 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1929 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1930 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1931 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1932 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1933 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1934 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1935 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1936 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1937 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1938 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1939 | TP_ACPI_HOTKEYSCAN_BACK, | |
1940 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1941 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1942 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1943 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1944 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1945 | ||
696c6523 CK |
1946 | /* Lenovo extended keymap, starting at 0x1300 */ |
1947 | TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
1948 | /* first new observed key (star, favorites) is 0x1311 */ | |
1949 | TP_ACPI_HOTKEYSCAN_STAR = 69, | |
1950 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, | |
1951 | TP_ACPI_HOTKEYSCAN_UNK25, | |
1952 | TP_ACPI_HOTKEYSCAN_BLUETOOTH, | |
1953 | TP_ACPI_HOTKEYSCAN_KEYBOARD, | |
1954 | ||
34a656d2 HMH |
1955 | /* Hotkey keymap size */ |
1956 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1957 | }; |
1958 | ||
0d922e3b | 1959 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1960 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1961 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1962 | }; | |
1963 | ||
1964 | enum { /* Positions of some of the keys in hotkey masks */ | |
1965 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1966 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1967 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1968 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1969 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
c685e20d | 1970 | TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
01e88f25 HMH |
1971 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, |
1972 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1973 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1974 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1975 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1976 | }; | |
1977 | ||
1978 | enum { /* NVRAM to ACPI HKEY group map */ | |
1979 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1980 | TP_ACPI_HKEY_ZOOM_MASK | | |
1981 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1982 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1983 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1984 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1985 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1986 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1987 | TP_ACPI_HKEY_MUTE_MASK, | |
1988 | }; | |
1989 | ||
1990 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1991 | struct tp_nvram_state { | |
1992 | u16 thinkpad_toggle:1; | |
1993 | u16 zoom_toggle:1; | |
1994 | u16 display_toggle:1; | |
1995 | u16 thinklight_toggle:1; | |
1996 | u16 hibernate_toggle:1; | |
1997 | u16 displayexp_toggle:1; | |
1998 | u16 display_state:1; | |
1999 | u16 brightness_toggle:1; | |
2000 | u16 volume_toggle:1; | |
2001 | u16 mute:1; | |
2002 | ||
2003 | u8 brightness_level; | |
2004 | u8 volume_level; | |
2005 | }; | |
2006 | ||
db25f16d | 2007 | /* kthread for the hotkey poller */ |
01e88f25 | 2008 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 2009 | |
db25f16d | 2010 | /* |
0d922e3b HMH |
2011 | * Acquire mutex to write poller control variables as an |
2012 | * atomic block. | |
2013 | * | |
2014 | * Increment hotkey_config_change when changing them if you | |
2015 | * want the kthread to forget old state. | |
db25f16d HMH |
2016 | * |
2017 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2018 | */ | |
01e88f25 HMH |
2019 | static struct mutex hotkey_thread_data_mutex; |
2020 | static unsigned int hotkey_config_change; | |
2021 | ||
db25f16d HMH |
2022 | /* |
2023 | * hotkey poller control variables | |
2024 | * | |
2025 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2026 | * |
2027 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2028 | * should be used only when the changes need to be taken as | |
2029 | * a block, OR when one needs to force the kthread to forget | |
2030 | * old state. | |
db25f16d HMH |
2031 | */ |
2032 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2033 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2034 | ||
2035 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2036 | do { \ | |
2037 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2038 | hotkey_config_change++; \ | |
2039 | } while (0); | |
2040 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2041 | mutex_unlock(&hotkey_thread_data_mutex); | |
2042 | ||
01e88f25 HMH |
2043 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2044 | ||
2045 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2046 | #define HOTKEY_CONFIG_CRITICAL_START |
2047 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2048 | |
2049 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2050 | ||
f74a27d4 HMH |
2051 | static struct mutex hotkey_mutex; |
2052 | ||
a713b4d7 HMH |
2053 | static enum { /* Reasons for waking up */ |
2054 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2055 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2056 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2057 | } hotkey_wakeup_reason; | |
2058 | ||
2059 | static int hotkey_autosleep_ack; | |
2060 | ||
0d922e3b HMH |
2061 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2062 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
0118c2d3 | 2063 | static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ |
0d922e3b HMH |
2064 | static u32 hotkey_reserved_mask; /* events better left disabled */ |
2065 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2066 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2067 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2068 | |
edf0e0e5 | 2069 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2070 | |
94954cc6 | 2071 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2072 | |
8b468c0c HMH |
2073 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2074 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2075 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2076 | |
6c231bd5 HMH |
2077 | /* HKEY.MHKG() return bits */ |
2078 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
b03f4d49 L |
2079 | /* ThinkPad X1 Yoga (2016) */ |
2080 | #define TP_EC_CMMD_TABLET_MODE 0x6 | |
6c231bd5 | 2081 | |
19d337df | 2082 | static int hotkey_get_wlsw(void) |
74941a69 | 2083 | { |
19d337df JB |
2084 | int status; |
2085 | ||
2086 | if (!tp_features.hotkey_wlsw) | |
2087 | return -ENODEV; | |
2088 | ||
a73f3091 | 2089 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2090 | if (dbg_wlswemul) |
2091 | return (tpacpi_wlsw_emulstate) ? | |
2092 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2093 | #endif |
19d337df JB |
2094 | |
2095 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2096 | return -EIO; |
19d337df JB |
2097 | |
2098 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2099 | } |
2100 | ||
6c231bd5 HMH |
2101 | static int hotkey_get_tablet_mode(int *status) |
2102 | { | |
2103 | int s; | |
2104 | ||
b03f4d49 L |
2105 | switch (tp_features.hotkey_tablet) { |
2106 | case TP_HOTKEY_TABLET_USES_MHKG: | |
2107 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2108 | return -EIO; | |
2109 | ||
2110 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); | |
2111 | break; | |
2112 | case TP_HOTKEY_TABLET_USES_CMMD: | |
2113 | if (!acpi_evalf(ec_handle, &s, "CMMD", "d")) | |
2114 | return -EIO; | |
2115 | ||
2116 | *status = (s == TP_EC_CMMD_TABLET_MODE); | |
2117 | break; | |
2118 | default: | |
2119 | break; | |
2120 | } | |
6c231bd5 | 2121 | |
cee47f5a | 2122 | return 0; |
6c231bd5 HMH |
2123 | } |
2124 | ||
b2c985e7 | 2125 | /* |
0d922e3b HMH |
2126 | * Reads current event mask from firmware, and updates |
2127 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2128 | * from hotkey_user_mask that are unavailable to be | |
2129 | * delivered (shadow requirement of the userspace ABI). | |
2130 | * | |
b2c985e7 HMH |
2131 | * Call with hotkey_mutex held |
2132 | */ | |
2133 | static int hotkey_mask_get(void) | |
2134 | { | |
2135 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2136 | u32 m = 0; |
2137 | ||
01e88f25 | 2138 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2139 | return -EIO; |
0d922e3b HMH |
2140 | |
2141 | hotkey_acpi_mask = m; | |
2142 | } else { | |
2143 | /* no mask support doesn't mean no event support... */ | |
2144 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2145 | } |
0d922e3b HMH |
2146 | |
2147 | /* sync userspace-visible mask */ | |
2148 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2149 | |
2150 | return 0; | |
2151 | } | |
2152 | ||
df6dd1b3 | 2153 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2154 | { |
2155 | /* log only what the user can fix... */ | |
2156 | const u32 wantedmask = hotkey_driver_mask & | |
2157 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2158 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2159 | ||
2160 | if (wantedmask) | |
0978e012 | 2161 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2162 | } |
2163 | ||
b2c985e7 | 2164 | /* |
0d922e3b HMH |
2165 | * Set the firmware mask when supported |
2166 | * | |
2167 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2168 | * | |
2169 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2170 | * | |
b2c985e7 HMH |
2171 | * Call with hotkey_mutex held |
2172 | */ | |
2173 | static int hotkey_mask_set(u32 mask) | |
2174 | { | |
2175 | int i; | |
2176 | int rc = 0; | |
2177 | ||
0d922e3b | 2178 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2179 | |
0d922e3b | 2180 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2181 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2182 | if (!acpi_evalf(hkey_handle, |
2183 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2184 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2185 | rc = -EIO; |
2186 | break; | |
b2c985e7 HMH |
2187 | } |
2188 | } | |
0d922e3b | 2189 | } |
b2c985e7 | 2190 | |
0d922e3b HMH |
2191 | /* |
2192 | * We *must* make an inconditional call to hotkey_mask_get to | |
2193 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2194 | * | |
2195 | * Take the opportunity to also log when we cannot _enable_ | |
2196 | * a given event. | |
2197 | */ | |
2198 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
5cac62ac | 2199 | pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n", |
0978e012 | 2200 | fwmask, hotkey_acpi_mask); |
b2c985e7 HMH |
2201 | } |
2202 | ||
6b30eb7d HMH |
2203 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2204 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2205 | |
2206 | return rc; | |
2207 | } | |
2208 | ||
2209 | /* | |
2210 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2211 | * | |
2212 | * Call with hotkey_mutex held | |
2213 | */ | |
2214 | static int hotkey_user_mask_set(const u32 mask) | |
2215 | { | |
2216 | int rc; | |
2217 | ||
2218 | /* Give people a chance to notice they are doing something that | |
2219 | * is bound to go boom on their users sooner or later */ | |
2220 | if (!tp_warned.hotkey_mask_ff && | |
2221 | (mask == 0xffff || mask == 0xffffff || | |
2222 | mask == 0xffffffff)) { | |
2223 | tp_warned.hotkey_mask_ff = 1; | |
5cac62ac AS |
2224 | pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n", |
2225 | mask); | |
2226 | pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n"); | |
0d922e3b HMH |
2227 | } |
2228 | ||
2229 | /* Try to enable what the user asked for, plus whatever we need. | |
2230 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2231 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2232 | ||
2233 | /* Enable the available bits in hotkey_user_mask */ | |
2234 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2235 | ||
b2c985e7 HMH |
2236 | return rc; |
2237 | } | |
2238 | ||
8b468c0c HMH |
2239 | /* |
2240 | * Sets the driver hotkey mask. | |
2241 | * | |
2242 | * Can be called even if the hotkey subdriver is inactive | |
2243 | */ | |
2244 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2245 | { | |
2246 | int rc; | |
2247 | ||
2248 | /* Do the right thing if hotkey_init has not been called yet */ | |
2249 | if (!tp_features.hotkey) { | |
2250 | hotkey_driver_mask = mask; | |
2251 | return 0; | |
2252 | } | |
2253 | ||
2254 | mutex_lock(&hotkey_mutex); | |
2255 | ||
2256 | HOTKEY_CONFIG_CRITICAL_START | |
2257 | hotkey_driver_mask = mask; | |
b684a363 | 2258 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2259 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2260 | #endif |
8b468c0c HMH |
2261 | HOTKEY_CONFIG_CRITICAL_END |
2262 | ||
2263 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2264 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2265 | hotkey_poll_setup(true); |
2266 | ||
8b468c0c HMH |
2267 | mutex_unlock(&hotkey_mutex); |
2268 | ||
2269 | return rc; | |
2270 | } | |
2271 | ||
b2c985e7 HMH |
2272 | static int hotkey_status_get(int *status) |
2273 | { | |
2274 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2275 | return -EIO; | |
2276 | ||
2277 | return 0; | |
2278 | } | |
2279 | ||
2586d566 | 2280 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2281 | { |
2586d566 | 2282 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2283 | return -EIO; |
2284 | ||
2285 | return 0; | |
2286 | } | |
2287 | ||
6c231bd5 | 2288 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2289 | { |
6c231bd5 | 2290 | int state; |
b3ec6f91 | 2291 | |
6c231bd5 HMH |
2292 | if (tp_features.hotkey_tablet && |
2293 | !hotkey_get_tablet_mode(&state)) { | |
2294 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2295 | |
6c231bd5 HMH |
2296 | input_report_switch(tpacpi_inputdev, |
2297 | SW_TABLET_MODE, !!state); | |
2298 | input_sync(tpacpi_inputdev); | |
2299 | ||
2300 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2301 | } | |
b3ec6f91 HMH |
2302 | } |
2303 | ||
0d922e3b HMH |
2304 | /* Do NOT call without validating scancode first */ |
2305 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2306 | { |
0d922e3b | 2307 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2308 | |
2309 | if (keycode != KEY_RESERVED) { | |
2310 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2311 | ||
5ffba7e6 | 2312 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2313 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2314 | input_sync(tpacpi_inputdev); |
2315 | ||
5ffba7e6 | 2316 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2317 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2318 | input_sync(tpacpi_inputdev); |
2319 | ||
2320 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2321 | } | |
2322 | } | |
2323 | ||
0d922e3b HMH |
2324 | /* Do NOT call without validating scancode first */ |
2325 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2326 | { | |
8b468c0c | 2327 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2328 | if (hotkey_user_mask & (1 << scancode)) |
2329 | tpacpi_input_send_key(scancode); | |
2330 | } | |
2331 | ||
01e88f25 HMH |
2332 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2333 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2334 | ||
0d922e3b | 2335 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2336 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2337 | { | |
0d922e3b | 2338 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2339 | } |
2340 | ||
0d922e3b | 2341 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2342 | { |
2343 | u8 d; | |
2344 | ||
2345 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2346 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2347 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2348 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2349 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2350 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2351 | } | |
c685e20d | 2352 | if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { |
01e88f25 HMH |
2353 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); |
2354 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2355 | } | |
2356 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2357 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2358 | n->displayexp_toggle = | |
2359 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2360 | } | |
2361 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2362 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2363 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2364 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2365 | n->brightness_toggle = | |
2366 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2367 | } | |
2368 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2369 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2370 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2371 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2372 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2373 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2374 | } | |
2375 | } | |
2376 | ||
2377 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2378 | do { \ |
2379 | if ((event_mask & (1 << __scancode)) && \ | |
2380 | oldn->__member != newn->__member) \ | |
2381 | tpacpi_hotkey_send_key(__scancode); \ | |
2382 | } while (0) | |
01e88f25 HMH |
2383 | |
2384 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2385 | do { \ |
2386 | if (event_mask & (1 << __scancode)) \ | |
2387 | tpacpi_hotkey_send_key(__scancode); \ | |
2388 | } while (0) | |
2389 | ||
2390 | static void issue_volchange(const unsigned int oldvol, | |
2391 | const unsigned int newvol, | |
2392 | const u32 event_mask) | |
2393 | { | |
2394 | unsigned int i = oldvol; | |
2395 | ||
2396 | while (i > newvol) { | |
2397 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2398 | i--; | |
5d756db9 | 2399 | } |
a4d44ba1 BW |
2400 | while (i < newvol) { |
2401 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2402 | i++; | |
2403 | } | |
2404 | } | |
5d756db9 | 2405 | |
a4d44ba1 BW |
2406 | static void issue_brightnesschange(const unsigned int oldbrt, |
2407 | const unsigned int newbrt, | |
2408 | const u32 event_mask) | |
2409 | { | |
2410 | unsigned int i = oldbrt; | |
28999022 | 2411 | |
a4d44ba1 BW |
2412 | while (i > newbrt) { |
2413 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2414 | i--; | |
28999022 | 2415 | } |
a4d44ba1 BW |
2416 | while (i < newbrt) { |
2417 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2418 | i++; | |
2419 | } | |
2420 | } | |
2421 | ||
2422 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2423 | struct tp_nvram_state *newn, | |
2424 | const u32 event_mask) | |
2425 | { | |
28999022 | 2426 | |
01e88f25 HMH |
2427 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2428 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2429 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2430 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2431 | ||
2432 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2433 | ||
2434 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2435 | ||
5d756db9 HMH |
2436 | /* |
2437 | * Handle volume | |
2438 | * | |
2439 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2440 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2441 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2442 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2443 | * - The act of unmuting issues volume up/down notification, |
2444 | * depending which key was used to unmute | |
2445 | * | |
2446 | * We are constrained to what the NVRAM can tell us, which is not much | |
2447 | * and certainly not enough if more than one volume hotkey was pressed | |
2448 | * since the last poll cycle. | |
2449 | * | |
2450 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2451 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2452 | */ | |
2453 | if (newn->mute) { | |
2454 | /* muted */ | |
2455 | if (!oldn->mute || | |
2456 | oldn->volume_toggle != newn->volume_toggle || | |
2457 | oldn->volume_level != newn->volume_level) { | |
2458 | /* recently muted, or repeated mute keypress, or | |
2459 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2460 | issue_volchange(oldn->volume_level, newn->volume_level, |
2461 | event_mask); | |
01e88f25 HMH |
2462 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2463 | } | |
5d756db9 HMH |
2464 | } else { |
2465 | /* unmute */ | |
2466 | if (oldn->mute) { | |
2467 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2468 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2469 | } |
2470 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2471 | issue_volchange(oldn->volume_level, newn->volume_level, |
2472 | event_mask); | |
5d756db9 HMH |
2473 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2474 | /* repeated vol up/down keypress at end of scale ? */ | |
2475 | if (newn->volume_level == 0) | |
01e88f25 | 2476 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2477 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2478 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2479 | } |
2480 | } | |
2481 | ||
2482 | /* handle brightness */ | |
28999022 HMH |
2483 | if (oldn->brightness_level != newn->brightness_level) { |
2484 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2485 | newn->brightness_level, event_mask); |
28999022 HMH |
2486 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2487 | /* repeated key presses that didn't change state */ | |
2488 | if (newn->brightness_level == 0) | |
01e88f25 | 2489 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2490 | else if (newn->brightness_level >= bright_maxlvl |
2491 | && !tp_features.bright_unkfw) | |
2492 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2493 | } |
01e88f25 HMH |
2494 | |
2495 | #undef TPACPI_COMPARE_KEY | |
2496 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2497 | } |
01e88f25 | 2498 | |
0d922e3b HMH |
2499 | /* |
2500 | * Polling driver | |
2501 | * | |
2502 | * We track all events in hotkey_source_mask all the time, since | |
2503 | * most of them are edge-based. We only issue those requested by | |
2504 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2505 | */ | |
01e88f25 HMH |
2506 | static int hotkey_kthread(void *data) |
2507 | { | |
2508 | struct tp_nvram_state s[2]; | |
0d922e3b | 2509 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2510 | unsigned int si, so; |
2511 | unsigned long t; | |
8a32c441 | 2512 | unsigned int change_detector; |
db25f16d | 2513 | unsigned int poll_freq; |
8a32c441 | 2514 | bool was_frozen; |
01e88f25 | 2515 | |
01e88f25 HMH |
2516 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2517 | goto exit; | |
2518 | ||
2519 | set_freezable(); | |
2520 | ||
2521 | so = 0; | |
2522 | si = 1; | |
2523 | t = 0; | |
2524 | ||
2525 | /* Initial state for compares */ | |
2526 | mutex_lock(&hotkey_thread_data_mutex); | |
2527 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2528 | poll_mask = hotkey_source_mask; |
2529 | event_mask = hotkey_source_mask & | |
2530 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2531 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2532 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2533 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2534 | |
db25f16d HMH |
2535 | while (!kthread_should_stop()) { |
2536 | if (t == 0) { | |
2537 | if (likely(poll_freq)) | |
2538 | t = 1000/poll_freq; | |
2539 | else | |
2540 | t = 100; /* should never happen... */ | |
2541 | } | |
01e88f25 | 2542 | t = msleep_interruptible(t); |
8a32c441 | 2543 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2544 | break; |
8a32c441 TH |
2545 | |
2546 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2547 | continue; |
2548 | ||
2549 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2550 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2551 | /* forget old state on thaw or config change */ |
2552 | si = so; | |
2553 | t = 0; | |
2554 | change_detector = hotkey_config_change; | |
2555 | } | |
0d922e3b HMH |
2556 | poll_mask = hotkey_source_mask; |
2557 | event_mask = hotkey_source_mask & | |
2558 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2559 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2560 | mutex_unlock(&hotkey_thread_data_mutex); |
2561 | ||
0d922e3b HMH |
2562 | if (likely(poll_mask)) { |
2563 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2564 | if (likely(si != so)) { |
2565 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2566 | event_mask); |
01e88f25 HMH |
2567 | } |
2568 | } | |
2569 | ||
2570 | so = si; | |
2571 | si ^= 1; | |
2572 | } | |
2573 | ||
2574 | exit: | |
01e88f25 HMH |
2575 | return 0; |
2576 | } | |
2577 | ||
db25f16d | 2578 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2579 | static void hotkey_poll_stop_sync(void) |
2580 | { | |
2581 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2582 | kthread_stop(tpacpi_hotkey_task); |
2583 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2584 | } |
2585 | } | |
2586 | ||
2587 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2588 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2589 | { |
0d922e3b HMH |
2590 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2591 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2592 | |
0d922e3b HMH |
2593 | if (hotkey_poll_freq > 0 && |
2594 | (poll_driver_mask || | |
2595 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2596 | if (!tpacpi_hotkey_task) { |
2597 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2598 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2599 | if (IS_ERR(tpacpi_hotkey_task)) { |
2600 | tpacpi_hotkey_task = NULL; | |
5cac62ac | 2601 | pr_err("could not create kernel thread for hotkey polling\n"); |
01e88f25 HMH |
2602 | } |
2603 | } | |
2604 | } else { | |
2605 | hotkey_poll_stop_sync(); | |
0d922e3b | 2606 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2607 | hotkey_poll_freq == 0) { |
5cac62ac | 2608 | pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n", |
0978e012 | 2609 | poll_user_mask, poll_driver_mask); |
01e88f25 HMH |
2610 | } |
2611 | } | |
2612 | } | |
2613 | ||
7f0cf712 | 2614 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2615 | { |
2616 | mutex_lock(&hotkey_mutex); | |
2617 | hotkey_poll_setup(may_warn); | |
2618 | mutex_unlock(&hotkey_mutex); | |
2619 | } | |
2620 | ||
db25f16d HMH |
2621 | /* call with hotkey_mutex held */ |
2622 | static void hotkey_poll_set_freq(unsigned int freq) | |
2623 | { | |
2624 | if (!freq) | |
2625 | hotkey_poll_stop_sync(); | |
2626 | ||
db25f16d | 2627 | hotkey_poll_freq = freq; |
db25f16d HMH |
2628 | } |
2629 | ||
1bc6b9cd HMH |
2630 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2631 | ||
7f0cf712 HMH |
2632 | static void hotkey_poll_setup(const bool __unused) |
2633 | { | |
2634 | } | |
2635 | ||
2636 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2637 | { |
2638 | } | |
2639 | ||
2640 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2641 | ||
01e88f25 HMH |
2642 | static int hotkey_inputdev_open(struct input_dev *dev) |
2643 | { | |
2644 | switch (tpacpi_lifecycle) { | |
2645 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2646 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2647 | hotkey_poll_setup_safe(false); |
01e88f25 | 2648 | return 0; |
b589ea4c HMH |
2649 | case TPACPI_LIFE_EXITING: |
2650 | return -EBUSY; | |
01e88f25 HMH |
2651 | } |
2652 | ||
2653 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2654 | BUG(); | |
2655 | return -EBUSY; | |
2656 | } | |
2657 | ||
2658 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2659 | { | |
2660 | /* disable hotkey polling when possible */ | |
b589ea4c | 2661 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2662 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2663 | hotkey_poll_setup_safe(false); |
01e88f25 | 2664 | } |
01e88f25 | 2665 | |
a0416420 HMH |
2666 | /* sysfs hotkey enable ------------------------------------------------- */ |
2667 | static ssize_t hotkey_enable_show(struct device *dev, | |
2668 | struct device_attribute *attr, | |
2669 | char *buf) | |
2670 | { | |
ae92bd17 | 2671 | int res, status; |
a0416420 | 2672 | |
2586d566 HMH |
2673 | printk_deprecated_attribute("hotkey_enable", |
2674 | "Hotkey reporting is always enabled"); | |
2675 | ||
b2c985e7 | 2676 | res = hotkey_status_get(&status); |
a0416420 HMH |
2677 | if (res) |
2678 | return res; | |
2679 | ||
2680 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2681 | } | |
2682 | ||
2683 | static ssize_t hotkey_enable_store(struct device *dev, | |
2684 | struct device_attribute *attr, | |
2685 | const char *buf, size_t count) | |
2686 | { | |
2687 | unsigned long t; | |
2586d566 HMH |
2688 | |
2689 | printk_deprecated_attribute("hotkey_enable", | |
2690 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2691 | |
2692 | if (parse_strtoul(buf, 1, &t)) | |
2693 | return -EINVAL; | |
2694 | ||
2586d566 HMH |
2695 | if (t == 0) |
2696 | return -EPERM; | |
a0416420 | 2697 | |
2586d566 | 2698 | return count; |
a0416420 HMH |
2699 | } |
2700 | ||
b4dd04ac | 2701 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2702 | |
2703 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2704 | static ssize_t hotkey_mask_show(struct device *dev, | |
2705 | struct device_attribute *attr, | |
2706 | char *buf) | |
2707 | { | |
0d922e3b | 2708 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2709 | } |
2710 | ||
2711 | static ssize_t hotkey_mask_store(struct device *dev, | |
2712 | struct device_attribute *attr, | |
2713 | const char *buf, size_t count) | |
2714 | { | |
2715 | unsigned long t; | |
b2c985e7 | 2716 | int res; |
a0416420 | 2717 | |
ae92bd17 | 2718 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2719 | return -EINVAL; |
2720 | ||
7646ea88 | 2721 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2722 | return -ERESTARTSYS; |
2723 | ||
0d922e3b | 2724 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2725 | |
2726 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2727 | hotkey_poll_setup(true); |
01e88f25 HMH |
2728 | #endif |
2729 | ||
b2c985e7 | 2730 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2731 | |
56e2c200 HMH |
2732 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2733 | ||
a0416420 HMH |
2734 | return (res) ? res : count; |
2735 | } | |
2736 | ||
b4dd04ac | 2737 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2738 | |
2739 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2740 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2741 | struct device_attribute *attr, | |
2742 | char *buf) | |
2743 | { | |
2586d566 | 2744 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2745 | } |
2746 | ||
b4dd04ac | 2747 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2748 | |
2749 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2750 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2751 | struct device_attribute *attr, | |
2752 | char *buf) | |
2753 | { | |
06777be6 HMH |
2754 | printk_deprecated_attribute("hotkey_bios_mask", |
2755 | "This attribute is useless."); | |
ae92bd17 | 2756 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2757 | } |
2758 | ||
b4dd04ac | 2759 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2760 | |
9b010de5 HMH |
2761 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2762 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2763 | struct device_attribute *attr, | |
2764 | char *buf) | |
2765 | { | |
01e88f25 HMH |
2766 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2767 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2768 | } |
2769 | ||
b4dd04ac | 2770 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 | 2771 | |
0118c2d3 DW |
2772 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2773 | static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, | |
2774 | struct device_attribute *attr, | |
2775 | char *buf) | |
2776 | { | |
2777 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
2778 | hotkey_adaptive_all_mask | hotkey_source_mask); | |
2779 | } | |
2780 | ||
2781 | static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); | |
2782 | ||
9b010de5 HMH |
2783 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
2784 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2785 | struct device_attribute *attr, | |
2786 | char *buf) | |
2787 | { | |
2788 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2789 | (hotkey_all_mask | hotkey_source_mask) |
2790 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2791 | } |
2792 | ||
b4dd04ac | 2793 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2794 | |
01e88f25 HMH |
2795 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2796 | ||
2797 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2798 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2799 | struct device_attribute *attr, | |
2800 | char *buf) | |
2801 | { | |
2802 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2803 | } | |
2804 | ||
2805 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2806 | struct device_attribute *attr, | |
2807 | const char *buf, size_t count) | |
2808 | { | |
2809 | unsigned long t; | |
0d922e3b HMH |
2810 | u32 r_ev; |
2811 | int rc; | |
01e88f25 HMH |
2812 | |
2813 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2814 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2815 | return -EINVAL; | |
2816 | ||
7646ea88 | 2817 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2818 | return -ERESTARTSYS; |
2819 | ||
2820 | HOTKEY_CONFIG_CRITICAL_START | |
2821 | hotkey_source_mask = t; | |
2822 | HOTKEY_CONFIG_CRITICAL_END | |
2823 | ||
0d922e3b HMH |
2824 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2825 | ~hotkey_source_mask); | |
db25f16d | 2826 | hotkey_poll_setup(true); |
0d922e3b HMH |
2827 | |
2828 | /* check if events needed by the driver got disabled */ | |
2829 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2830 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2831 | |
2832 | mutex_unlock(&hotkey_mutex); | |
2833 | ||
0d922e3b | 2834 | if (rc < 0) |
5cac62ac | 2835 | pr_err("hotkey_source_mask: failed to update the firmware event mask!\n"); |
0d922e3b HMH |
2836 | |
2837 | if (r_ev) | |
5cac62ac | 2838 | pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n", |
0978e012 | 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) | |
5cac62ac | 3099 | pr_err("failed to restore hot key mask to BIOS defaults\n"); |
9c0a76e1 HMH |
3100 | } |
3101 | ||
de4c8cc7 HMH |
3102 | static void __init hotkey_unmap(const unsigned int scancode) |
3103 | { | |
3104 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3105 | clear_bit(hotkey_keycode_map[scancode], | |
3106 | tpacpi_inputdev->keybit); | |
3107 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3108 | } | |
3109 | } | |
3110 | ||
0d922e3b HMH |
3111 | /* |
3112 | * HKEY quirks: | |
3113 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3114 | */ | |
3115 | ||
3116 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3117 | ||
3118 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3119 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3120 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3121 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3122 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3123 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3124 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3125 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3126 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3127 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3128 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3129 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3130 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3131 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3132 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3133 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3134 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3135 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3136 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3137 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3138 | }; | |
3139 | ||
fc6e7568 HMH |
3140 | typedef u16 tpacpi_keymap_entry_t; |
3141 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3142 | |
b3180028 L |
3143 | static int hotkey_init_tablet_mode(void) |
3144 | { | |
cb2bf251 DH |
3145 | int in_tablet_mode = 0, res; |
3146 | char *type = NULL; | |
b3180028 | 3147 | |
b3180028 | 3148 | if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) { |
b03f4d49 | 3149 | /* For X41t, X60t, X61t Tablets... */ |
b3180028 L |
3150 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG; |
3151 | in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK); | |
3152 | type = "MHKG"; | |
b03f4d49 L |
3153 | } else if (acpi_evalf(ec_handle, &res, "CMMD", "qd")) { |
3154 | /* For X1 Yoga (2016) */ | |
3155 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_CMMD; | |
3156 | in_tablet_mode = res == TP_EC_CMMD_TABLET_MODE; | |
3157 | type = "CMMD"; | |
b3180028 L |
3158 | } |
3159 | ||
3160 | if (!tp_features.hotkey_tablet) | |
3161 | return 0; | |
3162 | ||
3163 | pr_info("Tablet mode switch found (type: %s), currently in %s mode\n", | |
3164 | type, in_tablet_mode ? "tablet" : "laptop"); | |
3165 | ||
3166 | res = add_to_attr_set(hotkey_dev_attributes, | |
3167 | &dev_attr_hotkey_tablet_mode.attr); | |
3168 | if (res) | |
3169 | return -1; | |
3170 | ||
3171 | return in_tablet_mode; | |
3172 | } | |
3173 | ||
a5763f22 | 3174 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3175 | { |
0f089147 HMH |
3176 | /* Requirements for changing the default keymaps: |
3177 | * | |
3178 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3179 | * good reasons. Do not change them unless you have deep | |
3180 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3181 | * the various ThinkPad models. The driver behaves | |
3182 | * differently for KEY_RESERVED: such keys have their | |
3183 | * hot key mask *unset* in mask_recommended, and also | |
3184 | * in the initial hot key mask programmed into the | |
3185 | * firmware at driver load time, which means the firm- | |
3186 | * ware may react very differently if you change them to | |
3187 | * something else; | |
3188 | * | |
3189 | * 2. You must be subscribed to the linux-thinkpad and | |
3190 | * ibm-acpi-devel mailing lists, and you should read the | |
3191 | * list archives since 2007 if you want to change the | |
3192 | * keymaps. This requirement exists so that you will | |
3193 | * know the past history of problems with the thinkpad- | |
3194 | * acpi driver keymaps, and also that you will be | |
3195 | * listening to any bug reports; | |
3196 | * | |
3197 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3198 | * for merging, *ever*. Send them to the linux-acpi | |
3199 | * mailinglist for comments. Merging is to be done only | |
3200 | * through acpi-test and the ACPI maintainer. | |
3201 | * | |
3202 | * If the above is too much to ask, don't change the keymap. | |
3203 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3204 | */ | |
d1e14dca HMH |
3205 | |
3206 | enum keymap_index { | |
3207 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3208 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3209 | }; | |
3210 | ||
3211 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3212 | /* Generic keymap for IBM ThinkPads */ | |
3213 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3214 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3215 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3216 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3217 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3218 | |
3219 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3220 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3221 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3222 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3223 | |
0d922e3b | 3224 | /* brightness: firmware always reacts to them */ |
e927c08d | 3225 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3226 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3227 | |
3228 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3229 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3230 | |
edf0e0e5 HMH |
3231 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3232 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3233 | |
3234 | /* Volume: firmware always react to it and reprograms | |
3235 | * the built-in *extra* mixer. Never map it to control | |
3236 | * another mixer by default. */ | |
e927c08d HMH |
3237 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3238 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3239 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3240 | |
edf0e0e5 | 3241 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3242 | |
edf0e0e5 HMH |
3243 | /* (assignments unknown, please report if found) */ |
3244 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3245 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
6a68d855 BN |
3246 | |
3247 | /* No assignments, only used for Adaptive keyboards. */ | |
3248 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
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, | |
696c6523 CK |
3253 | |
3254 | /* No assignment, used for newer Lenovo models */ | |
3255 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3256 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3257 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3258 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3259 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3260 | KEY_UNKNOWN, KEY_UNKNOWN | |
3261 | ||
d1e14dca HMH |
3262 | }, |
3263 | ||
3264 | /* Generic keymap for Lenovo ThinkPads */ | |
3265 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3266 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3267 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3268 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3269 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3270 | |
3271 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3272 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3273 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3274 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3275 | |
de4c8cc7 HMH |
3276 | /* These should be enabled --only-- when ACPI video |
3277 | * is disabled (i.e. in "vendor" mode), and are handled | |
3278 | * in a special way by the init code */ | |
3279 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3280 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3281 | |
edf0e0e5 | 3282 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3283 | |
edf0e0e5 HMH |
3284 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3285 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3286 | |
3287 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3288 | * react to it and reprograms the built-in *extra* mixer. | |
3289 | * Never map it to control another mixer by default. | |
3290 | * | |
3291 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3292 | * these over the regular keyboard, so these are no-ops, | |
3293 | * but there are still weird bugs re. MUTE, so do not | |
3294 | * change unless you get test reports from all Lenovo | |
3295 | * models. May cause the BIOS to interfere with the | |
3296 | * HDA mixer. | |
3297 | */ | |
e927c08d HMH |
3298 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3299 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3300 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3301 | |
edf0e0e5 | 3302 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3303 | |
33009557 AL |
3304 | /* (assignments unknown, please report if found) */ |
3305 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3306 | ||
3307 | /* | |
3308 | * The mic mute button only sends 0x1a. It does not | |
3309 | * automatically mute the mic or change the mute light. | |
3310 | */ | |
3311 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3312 | ||
edf0e0e5 | 3313 | /* (assignments unknown, please report if found) */ |
33009557 | 3314 | KEY_UNKNOWN, |
8b9dd4fa HG |
3315 | |
3316 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3317 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
6a68d855 BN |
3318 | |
3319 | /* | |
3320 | * These are the adaptive keyboard keycodes for Carbon X1 2014. | |
3321 | * The first item in this list is the Mute button which is | |
3322 | * emitted with 0x103 through | |
3323 | * adaptive_keyboard_hotkey_notify_hotkey() when the sound | |
3324 | * symbol is held. | |
3325 | * We'll need to offset those by 0x20. | |
3326 | */ | |
3327 | KEY_RESERVED, /* Mute held, 0x103 */ | |
3328 | KEY_BRIGHTNESS_MIN, /* Backlight off */ | |
3329 | KEY_RESERVED, /* Clipping tool */ | |
3330 | KEY_RESERVED, /* Cloud */ | |
3331 | KEY_RESERVED, | |
3332 | KEY_VOICECOMMAND, /* Voice */ | |
3333 | KEY_RESERVED, | |
3334 | KEY_RESERVED, /* Gestures */ | |
3335 | KEY_RESERVED, | |
3336 | KEY_RESERVED, | |
3337 | KEY_RESERVED, | |
3338 | KEY_CONFIG, /* Settings */ | |
3339 | KEY_RESERVED, /* New tab */ | |
3340 | KEY_REFRESH, /* Reload */ | |
3341 | KEY_BACK, /* Back */ | |
3342 | KEY_RESERVED, /* Microphone down */ | |
3343 | KEY_RESERVED, /* Microphone up */ | |
3344 | KEY_RESERVED, /* Microphone cancellation */ | |
3345 | KEY_RESERVED, /* Camera mode */ | |
3346 | KEY_RESERVED, /* Rotate display, 0x116 */ | |
696c6523 CK |
3347 | |
3348 | /* | |
3349 | * These are found in 2017 models (e.g. T470s, X270). | |
3350 | * The lowest known value is 0x311, which according to | |
3351 | * the manual should launch a user defined favorite | |
3352 | * application. | |
3353 | * | |
3354 | * The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
3355 | * corresponding to 0x34. | |
3356 | */ | |
3357 | ||
3358 | /* (assignments unknown, please report if found) */ | |
3359 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3360 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3361 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3362 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3363 | KEY_UNKNOWN, | |
3364 | ||
3365 | KEY_FAVORITES, /* Favorite app, 0x311 */ | |
3366 | KEY_RESERVED, /* Clipping tool */ | |
3367 | KEY_RESERVED, | |
3368 | KEY_BLUETOOTH, /* Bluetooth */ | |
3369 | KEY_KEYBOARD /* Keyboard, 0x315 */ | |
d1e14dca | 3370 | }, |
edf0e0e5 HMH |
3371 | }; |
3372 | ||
d1e14dca HMH |
3373 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3374 | /* Generic maps (fallback) */ | |
3375 | { | |
3376 | .vendor = PCI_VENDOR_ID_IBM, | |
3377 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3378 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3379 | }, | |
3380 | { | |
3381 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3382 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3383 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3384 | }, | |
3385 | }; | |
3386 | ||
3387 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3388 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3389 | |
6a38abbf | 3390 | int res, i; |
74941a69 | 3391 | int status; |
1b6521dc | 3392 | int hkeyv; |
d89a727a HMH |
3393 | bool radiosw_state = false; |
3394 | bool tabletsw_state = false; | |
b86c4722 | 3395 | |
0d922e3b | 3396 | unsigned long quirks; |
d1e14dca | 3397 | unsigned long keymap_id; |
0d922e3b | 3398 | |
56e2c200 HMH |
3399 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3400 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3401 | |
6a38abbf | 3402 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3403 | BUG_ON(tpacpi_inputdev->open != NULL || |
3404 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3405 | |
e0c7dfe7 | 3406 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3407 | mutex_init(&hotkey_mutex); |
5fba344c | 3408 | |
01e88f25 | 3409 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3410 | mutex_init(&hotkey_thread_data_mutex); |
3411 | #endif | |
3412 | ||
56b6aeb0 | 3413 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3414 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3415 | |
56e2c200 HMH |
3416 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3417 | "hotkeys are %s\n", | |
d8fd94d9 | 3418 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3419 | |
9c0a76e1 HMH |
3420 | if (!tp_features.hotkey) |
3421 | return 1; | |
a0416420 | 3422 | |
0d922e3b HMH |
3423 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3424 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3425 | ||
d64c81c4 HMH |
3426 | tpacpi_disable_brightness_delay(); |
3427 | ||
0d922e3b HMH |
3428 | /* MUST have enough space for all attributes to be added to |
3429 | * hotkey_dev_attributes */ | |
3430 | hotkey_dev_attributes = create_attr_set( | |
3431 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3432 | NULL); | |
9c0a76e1 HMH |
3433 | if (!hotkey_dev_attributes) |
3434 | return -ENOMEM; | |
3435 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3436 | hotkey_attributes, | |
3437 | ARRAY_SIZE(hotkey_attributes)); | |
3438 | if (res) | |
3439 | goto err_exit; | |
3440 | ||
0d922e3b | 3441 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3442 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3443 | for HKEY interface version 0x100 */ | |
3444 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
0118c2d3 DW |
3445 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3446 | "firmware HKEY interface version: 0x%x\n", | |
3447 | hkeyv); | |
3448 | ||
3449 | switch (hkeyv >> 8) { | |
3450 | case 1: | |
9c0a76e1 HMH |
3451 | /* |
3452 | * MHKV 0x100 in A31, R40, R40e, | |
3453 | * T4x, X31, and later | |
3454 | */ | |
0d922e3b HMH |
3455 | |
3456 | /* Paranoia check AND init hotkey_all_mask */ | |
3457 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3458 | "MHKA", "qd")) { | |
0118c2d3 DW |
3459 | pr_err("missing MHKA handler, please report this to %s\n", |
3460 | TPACPI_MAIL); | |
3461 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3462 | hotkey_all_mask = 0x080cU; | |
3463 | } else { | |
3464 | tp_features.hotkey_mask = 1; | |
3465 | } | |
3466 | break; | |
3467 | ||
3468 | case 2: | |
3469 | /* | |
3470 | * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) | |
3471 | */ | |
3472 | ||
3473 | /* Paranoia check AND init hotkey_all_mask */ | |
3474 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3475 | "MHKA", "dd", 1)) { | |
3476 | pr_err("missing MHKA handler, please report this to %s\n", | |
0d922e3b HMH |
3477 | TPACPI_MAIL); |
3478 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3479 | hotkey_all_mask = 0x080cU; | |
3480 | } else { | |
3481 | tp_features.hotkey_mask = 1; | |
3482 | } | |
0118c2d3 DW |
3483 | |
3484 | /* | |
3485 | * Check if we have an adaptive keyboard, like on the | |
3486 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3487 | */ | |
3488 | if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, | |
3489 | "MHKA", "dd", 2)) { | |
3490 | if (hotkey_adaptive_all_mask != 0) { | |
3491 | tp_features.has_adaptive_kbd = true; | |
3492 | res = sysfs_create_group( | |
3493 | &tpacpi_pdev->dev.kobj, | |
3494 | &adaptive_kbd_attr_group); | |
3495 | if (res) | |
3496 | goto err_exit; | |
3497 | } | |
3498 | } else { | |
3499 | tp_features.has_adaptive_kbd = false; | |
3500 | hotkey_adaptive_all_mask = 0x0U; | |
3501 | } | |
3502 | break; | |
3503 | ||
3504 | default: | |
3505 | pr_err("unknown version of the HKEY interface: 0x%x\n", | |
3506 | hkeyv); | |
3507 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
3508 | break; | |
1b6521dc | 3509 | } |
9c0a76e1 | 3510 | } |
56b6aeb0 | 3511 | |
56e2c200 HMH |
3512 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3513 | "hotkey masks are %s\n", | |
9c0a76e1 | 3514 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3515 | |
0d922e3b HMH |
3516 | /* Init hotkey_all_mask if not initialized yet */ |
3517 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3518 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3519 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3520 | |
0d922e3b | 3521 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3522 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3523 | /* hotkey_source_mask *must* be zero for |
3524 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3525 | res = hotkey_mask_get(); |
3526 | if (res) | |
3527 | goto err_exit; | |
3528 | ||
0d922e3b HMH |
3529 | hotkey_orig_mask = hotkey_acpi_mask; |
3530 | } else { | |
3531 | hotkey_orig_mask = hotkey_all_mask; | |
3532 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3533 | } |
74941a69 | 3534 | |
a73f3091 HMH |
3535 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3536 | if (dbg_wlswemul) { | |
3537 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3538 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3539 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3540 | } else |
3541 | #endif | |
9c0a76e1 HMH |
3542 | /* Not all thinkpads have a hardware radio switch */ |
3543 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3544 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3545 | radiosw_state = !!status; |
0978e012 | 3546 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3547 | enabled(status, 0)); |
3a872080 HMH |
3548 | } |
3549 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3550 | res = add_to_attr_set(hotkey_dev_attributes, |
3551 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3552 | |
b3180028 L |
3553 | res = hotkey_init_tablet_mode(); |
3554 | if (res < 0) | |
3555 | goto err_exit; | |
3556 | ||
3557 | tabletsw_state = res; | |
6c231bd5 | 3558 | |
b3180028 L |
3559 | res = register_attr_set_with_sysfs(hotkey_dev_attributes, |
3560 | &tpacpi_pdev->dev.kobj); | |
9c0a76e1 HMH |
3561 | if (res) |
3562 | goto err_exit; | |
6a38abbf | 3563 | |
9c0a76e1 | 3564 | /* Set up key map */ |
9c0a76e1 HMH |
3565 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3566 | GFP_KERNEL); | |
3567 | if (!hotkey_keycode_map) { | |
0978e012 | 3568 | pr_err("failed to allocate memory for key map\n"); |
9c0a76e1 HMH |
3569 | res = -ENOMEM; |
3570 | goto err_exit; | |
3571 | } | |
edf0e0e5 | 3572 | |
d1e14dca HMH |
3573 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3574 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3575 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3576 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3577 | "using keymap number %lu\n", keymap_id); | |
3578 | ||
3579 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3580 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3581 | |
792979c8 | 3582 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3583 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3584 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3585 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3586 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3587 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3588 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3589 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3590 | } else { |
3591 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3592 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3593 | } |
9c0a76e1 | 3594 | } |
6a38abbf | 3595 | |
9c0a76e1 | 3596 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3597 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3598 | input_report_switch(tpacpi_inputdev, |
3599 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3600 | } |
3601 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3602 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3603 | input_report_switch(tpacpi_inputdev, |
3604 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3605 | } |
5c29d58f | 3606 | |
9c0a76e1 | 3607 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3608 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3609 | * been called before this point */ | |
b33c6ce5 | 3610 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
5cac62ac AS |
3611 | pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n"); |
3612 | pr_notice("Disabling thinkpad-acpi brightness events by default...\n"); | |
9c0a76e1 | 3613 | |
de4c8cc7 HMH |
3614 | /* Disable brightness up/down on Lenovo thinkpads when |
3615 | * ACPI is handling them, otherwise it is plain impossible | |
3616 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3617 | hotkey_reserved_mask |= |
3618 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3619 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3620 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3621 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3622 | } |
ff80f137 | 3623 | |
230d8cf2 | 3624 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3625 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3626 | & ~hotkey_all_mask | |
3627 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3628 | |
3629 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3630 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3631 | hotkey_source_mask, hotkey_poll_freq); | |
3632 | #endif | |
3633 | ||
56e2c200 HMH |
3634 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3635 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3636 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3637 | if (res) { |
3638 | hotkey_exit(); | |
3639 | return res; | |
3640 | } | |
0d922e3b HMH |
3641 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3642 | | hotkey_driver_mask) | |
3643 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3644 | if (res < 0 && res != -ENXIO) { |
3645 | hotkey_exit(); | |
3646 | return res; | |
3647 | } | |
0d922e3b HMH |
3648 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3649 | & ~hotkey_reserved_mask; | |
3650 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3651 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3652 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3653 | |
9c0a76e1 HMH |
3654 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3655 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3656 | |
db25f16d | 3657 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3658 | |
9c0a76e1 | 3659 | return 0; |
01e88f25 | 3660 | |
9c0a76e1 HMH |
3661 | err_exit: |
3662 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3663 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3664 | &adaptive_kbd_attr_group); | |
3665 | ||
9c0a76e1 | 3666 | hotkey_dev_attributes = NULL; |
a0416420 | 3667 | |
72a979f0 | 3668 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3669 | } |
3670 | ||
3a9d20bd SS |
3671 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3672 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3673 | * We support Home mode and Function mode currently. | |
3674 | * | |
3675 | * Will consider support rest of modes in future. | |
3676 | * | |
3677 | */ | |
b201a47f | 3678 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3679 | HOME_MODE, |
3680 | /* WEB_BROWSER_MODE = 2, | |
3681 | WEB_CONFERENCE_MODE = 3, */ | |
3682 | FUNCTION_MODE | |
3683 | }; | |
3684 | ||
3685 | #define DFR_CHANGE_ROW 0x101 | |
3686 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 | 3687 | #define FIRST_ADAPTIVE_KEY 0x103 |
3a9d20bd SS |
3688 | |
3689 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3690 | * release Fn key, previous mode be restored. | |
3691 | */ | |
3692 | static bool adaptive_keyboard_mode_is_saved; | |
3693 | static int adaptive_keyboard_prev_mode; | |
3694 | ||
f74587fb BN |
3695 | static int adaptive_keyboard_get_mode(void) |
3696 | { | |
3697 | int mode = 0; | |
3698 | ||
3699 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3700 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3701 | return -EIO; | |
3702 | } | |
3703 | ||
3704 | return mode; | |
3705 | } | |
3706 | ||
3707 | static int adaptive_keyboard_set_mode(int new_mode) | |
3708 | { | |
3709 | if (new_mode < 0 || | |
3710 | new_mode > LAYFLAT_MODE) | |
3711 | return -EINVAL; | |
3712 | ||
3713 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3714 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3715 | return -EIO; | |
3716 | } | |
3717 | ||
3718 | return 0; | |
3719 | } | |
3720 | ||
3a9d20bd SS |
3721 | static int adaptive_keyboard_get_next_mode(int mode) |
3722 | { | |
3723 | size_t i; | |
3724 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3725 | ||
3726 | for (i = 0; i <= max_mode; i++) { | |
3727 | if (adaptive_keyboard_modes[i] == mode) | |
3728 | break; | |
3729 | } | |
3730 | ||
3731 | if (i >= max_mode) | |
3732 | i = 0; | |
3733 | else | |
3734 | i++; | |
3735 | ||
3736 | return adaptive_keyboard_modes[i]; | |
3737 | } | |
3738 | ||
3739 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3740 | { | |
abf9dc0d | 3741 | int current_mode = 0; |
3a9d20bd | 3742 | int new_mode = 0; |
6a68d855 | 3743 | int keycode; |
3a9d20bd SS |
3744 | |
3745 | switch (scancode) { | |
3746 | case DFR_CHANGE_ROW: | |
3747 | if (adaptive_keyboard_mode_is_saved) { | |
3748 | new_mode = adaptive_keyboard_prev_mode; | |
3749 | adaptive_keyboard_mode_is_saved = false; | |
3750 | } else { | |
f74587fb BN |
3751 | current_mode = adaptive_keyboard_get_mode(); |
3752 | if (current_mode < 0) | |
3a9d20bd | 3753 | return false; |
f74587fb BN |
3754 | new_mode = adaptive_keyboard_get_next_mode( |
3755 | current_mode); | |
3a9d20bd SS |
3756 | } |
3757 | ||
f74587fb | 3758 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3759 | return false; |
3a9d20bd SS |
3760 | |
3761 | return true; | |
3762 | ||
3763 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3764 | current_mode = adaptive_keyboard_get_mode(); |
3765 | if (current_mode < 0) | |
3a9d20bd | 3766 | return false; |
3a9d20bd | 3767 | |
f74587fb BN |
3768 | adaptive_keyboard_prev_mode = current_mode; |
3769 | adaptive_keyboard_mode_is_saved = true; | |
3770 | ||
3771 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3772 | return false; | |
3a9d20bd SS |
3773 | return true; |
3774 | ||
3775 | default: | |
741d98c7 | 3776 | if (scancode < FIRST_ADAPTIVE_KEY || |
696c6523 CK |
3777 | scancode >= FIRST_ADAPTIVE_KEY + |
3778 | TP_ACPI_HOTKEYSCAN_EXTENDED_START - | |
3779 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
6a68d855 | 3780 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
5cac62ac | 3781 | scancode); |
6a68d855 BN |
3782 | return false; |
3783 | } | |
149c8c75 CK |
3784 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + |
3785 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START]; | |
6a68d855 BN |
3786 | if (keycode != KEY_RESERVED) { |
3787 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3788 | ||
3789 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3790 | input_sync(tpacpi_inputdev); | |
3791 | ||
3792 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3793 | input_sync(tpacpi_inputdev); | |
3794 | ||
3795 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3796 | } | |
3797 | return true; | |
3a9d20bd SS |
3798 | } |
3799 | } | |
3800 | ||
3827e7a3 HMH |
3801 | static bool hotkey_notify_hotkey(const u32 hkey, |
3802 | bool *send_acpi_ev, | |
3803 | bool *ignore_acpi_ev) | |
3804 | { | |
3805 | /* 0x1000-0x1FFF: key presses */ | |
3806 | unsigned int scancode = hkey & 0xfff; | |
3807 | *send_acpi_ev = true; | |
3808 | *ignore_acpi_ev = false; | |
3809 | ||
696c6523 CK |
3810 | /* |
3811 | * Original events are in the 0x10XX range, the adaptive keyboard | |
3812 | * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017 | |
3813 | * models, additional keys are emitted through 0x13XX. | |
3814 | */ | |
3815 | switch ((hkey >> 8) & 0xf) { | |
3816 | case 0: | |
3817 | if (scancode > 0 && | |
3818 | scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
3819 | /* HKEY event 0x1001 is scancode 0x00 */ | |
3820 | scancode--; | |
3821 | if (!(hotkey_source_mask & (1 << scancode))) { | |
3822 | tpacpi_input_send_key_masked(scancode); | |
3823 | *send_acpi_ev = false; | |
3824 | } else { | |
3825 | *ignore_acpi_ev = true; | |
3826 | } | |
3827 | return true; | |
3827e7a3 | 3828 | } |
696c6523 CK |
3829 | break; |
3830 | ||
3831 | case 1: | |
3a9d20bd | 3832 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); |
696c6523 CK |
3833 | |
3834 | case 3: | |
3835 | /* Extended keycodes start at 0x300 and our offset into the map | |
3836 | * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode | |
3837 | * will be positive, but might not be in the correct range. | |
3838 | */ | |
3839 | scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START); | |
3840 | if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START && | |
3841 | scancode < TPACPI_HOTKEY_MAP_LEN) { | |
3842 | tpacpi_input_send_key(scancode); | |
3843 | return true; | |
3844 | } | |
3845 | break; | |
3827e7a3 | 3846 | } |
696c6523 | 3847 | |
3827e7a3 HMH |
3848 | return false; |
3849 | } | |
3850 | ||
3851 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3852 | bool *send_acpi_ev, | |
3853 | bool *ignore_acpi_ev) | |
3854 | { | |
3855 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3856 | *send_acpi_ev = true; | |
3857 | *ignore_acpi_ev = false; | |
3858 | ||
3859 | switch (hkey) { | |
67bcae6e HMH |
3860 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3861 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3862 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3863 | *ignore_acpi_ev = true; | |
3864 | break; | |
3865 | ||
67bcae6e HMH |
3866 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3867 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3868 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3869 | *ignore_acpi_ev = true; | |
3870 | break; | |
3871 | ||
67bcae6e HMH |
3872 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3873 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3874 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3875 | /* how to auto-heal: */ |
3876 | /* 2313: woke up from S3, go to S4/S5 */ | |
3877 | /* 2413: woke up from S4, go to S5 */ | |
3878 | break; | |
3879 | ||
3827e7a3 HMH |
3880 | default: |
3881 | return false; | |
3882 | } | |
3883 | ||
3884 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3885 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3886 | hotkey_wakeup_reason_notify_change(); |
3887 | } | |
3888 | return true; | |
3889 | } | |
3890 | ||
a50245af HMH |
3891 | static bool hotkey_notify_dockevent(const u32 hkey, |
3892 | bool *send_acpi_ev, | |
3893 | bool *ignore_acpi_ev) | |
3894 | { | |
3895 | /* 0x4000-0x4FFF: dock-related events */ | |
3896 | *send_acpi_ev = true; | |
3897 | *ignore_acpi_ev = false; | |
3898 | ||
3899 | switch (hkey) { | |
3900 | case TP_HKEY_EV_UNDOCK_ACK: | |
3901 | /* ACPI undock operation completed after wakeup */ | |
3902 | hotkey_autosleep_ack = 1; | |
3903 | pr_info("undocked\n"); | |
3904 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3905 | return true; | |
3906 | ||
3907 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3908 | pr_info("docked into hotplug port replicator\n"); | |
3909 | return true; | |
3910 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3911 | pr_info("undocked from hotplug port replicator\n"); | |
3912 | return true; | |
3913 | ||
3914 | default: | |
3915 | return false; | |
3916 | } | |
3917 | } | |
3918 | ||
3827e7a3 HMH |
3919 | static bool hotkey_notify_usrevent(const u32 hkey, |
3920 | bool *send_acpi_ev, | |
3921 | bool *ignore_acpi_ev) | |
3922 | { | |
3923 | /* 0x5000-0x5FFF: human interface helpers */ | |
3924 | *send_acpi_ev = true; | |
3925 | *ignore_acpi_ev = false; | |
3926 | ||
3927 | switch (hkey) { | |
67bcae6e HMH |
3928 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3929 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3930 | return true; |
3931 | ||
67bcae6e HMH |
3932 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3933 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3934 | tpacpi_input_send_tabletsw(); |
3935 | hotkey_tablet_mode_notify_change(); | |
3936 | *send_acpi_ev = false; | |
3937 | return true; | |
3938 | ||
67bcae6e HMH |
3939 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3940 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3941 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3942 | /* do not propagate these events */ |
3827e7a3 HMH |
3943 | *ignore_acpi_ev = true; |
3944 | return true; | |
3945 | ||
3946 | default: | |
3947 | return false; | |
3948 | } | |
3949 | } | |
3950 | ||
9ebd9e83 HMH |
3951 | static void thermal_dump_all_sensors(void); |
3952 | ||
2d43f671 | 3953 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
3954 | bool *send_acpi_ev, |
3955 | bool *ignore_acpi_ev) | |
3956 | { | |
9ebd9e83 HMH |
3957 | bool known = true; |
3958 | ||
2d43f671 | 3959 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
3960 | *send_acpi_ev = true; |
3961 | *ignore_acpi_ev = false; | |
3962 | ||
3963 | switch (hkey) { | |
9ebd9e83 | 3964 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
0978e012 | 3965 | pr_info("EC reports that Thermal Table has changed\n"); |
9ebd9e83 HMH |
3966 | /* recommended action: do nothing, we don't have |
3967 | * Lenovo ATM information */ | |
3968 | return true; | |
67bcae6e | 3969 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 3970 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 3971 | /* recommended action: warn user through gui */ |
9ebd9e83 | 3972 | break; |
67bcae6e | 3973 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 3974 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 3975 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3976 | break; |
67bcae6e | 3977 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
5cac62ac | 3978 | pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n"); |
106b4e66 HMH |
3979 | /* recommended action: warn user through gui, that */ |
3980 | /* some internal component is too hot */ | |
9ebd9e83 | 3981 | break; |
67bcae6e | 3982 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
5cac62ac | 3983 | pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n"); |
106b4e66 | 3984 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3985 | break; |
6f62bc3e RH |
3986 | case TP_HKEY_EV_AC_CHANGED: |
3987 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
3988 | * AC status changed; can be triggered by plugging or | |
3989 | * unplugging AC adapter, docking or undocking. */ | |
3990 | ||
3991 | /* fallthrough */ | |
2d43f671 HMH |
3992 | |
3993 | case TP_HKEY_EV_KEY_NUMLOCK: | |
3994 | case TP_HKEY_EV_KEY_FN: | |
67ab6248 | 3995 | case TP_HKEY_EV_KEY_FN_ESC: |
2d43f671 HMH |
3996 | /* key press events, we just ignore them as long as the EC |
3997 | * is still reporting them in the normal keyboard stream */ | |
3998 | *send_acpi_ev = false; | |
3999 | *ignore_acpi_ev = true; | |
4000 | return true; | |
4001 | ||
b03f4d49 L |
4002 | case TP_HKEY_EV_TABLET_CHANGED: |
4003 | tpacpi_input_send_tabletsw(); | |
4004 | hotkey_tablet_mode_notify_change(); | |
4005 | *send_acpi_ev = false; | |
4006 | break; | |
4007 | ||
106b4e66 | 4008 | default: |
2d43f671 | 4009 | pr_warn("unknown possible thermal alarm or keyboard event received\n"); |
9ebd9e83 | 4010 | known = false; |
106b4e66 | 4011 | } |
9ebd9e83 HMH |
4012 | |
4013 | thermal_dump_all_sensors(); | |
4014 | ||
4015 | return known; | |
106b4e66 HMH |
4016 | } |
4017 | ||
56b6aeb0 HMH |
4018 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
4019 | { | |
6a38abbf | 4020 | u32 hkey; |
3827e7a3 HMH |
4021 | bool send_acpi_ev; |
4022 | bool ignore_acpi_ev; | |
4023 | bool known_ev; | |
3eea123d HMH |
4024 | |
4025 | if (event != 0x80) { | |
0978e012 | 4026 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 4027 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
4028 | acpi_bus_generate_netlink_event( |
4029 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4030 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4031 | event, 0); |
3eea123d HMH |
4032 | return; |
4033 | } | |
4034 | ||
4035 | while (1) { | |
4036 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 4037 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
4038 | return; |
4039 | } | |
4040 | ||
4041 | if (hkey == 0) { | |
4042 | /* queue empty */ | |
4043 | return; | |
4044 | } | |
4045 | ||
3827e7a3 HMH |
4046 | send_acpi_ev = true; |
4047 | ignore_acpi_ev = false; | |
56b6aeb0 | 4048 | |
ff80f137 HMH |
4049 | switch (hkey >> 12) { |
4050 | case 1: | |
4051 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
4052 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
4053 | &ignore_acpi_ev); | |
ff80f137 | 4054 | break; |
a713b4d7 | 4055 | case 2: |
3827e7a3 HMH |
4056 | /* 0x2000-0x2FFF: Wakeup reason */ |
4057 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
4058 | &ignore_acpi_ev); | |
a713b4d7 HMH |
4059 | break; |
4060 | case 3: | |
3827e7a3 | 4061 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
4062 | switch (hkey) { |
4063 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 4064 | hotkey_autosleep_ack = 1; |
0978e012 | 4065 | pr_info("bay ejected\n"); |
50ebec09 | 4066 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 4067 | known_ev = true; |
bf8b29c8 HMH |
4068 | break; |
4069 | case TP_HKEY_EV_OPTDRV_EJ: | |
4070 | /* FIXME: kick libata if SATA link offline */ | |
4071 | known_ev = true; | |
4072 | break; | |
4073 | default: | |
3827e7a3 | 4074 | known_ev = false; |
a713b4d7 HMH |
4075 | } |
4076 | break; | |
4077 | case 4: | |
a50245af HMH |
4078 | /* 0x4000-0x4FFF: dock-related events */ |
4079 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
4080 | &ignore_acpi_ev); | |
a713b4d7 | 4081 | break; |
ff80f137 | 4082 | case 5: |
d1edb2b5 | 4083 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
4084 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
4085 | &ignore_acpi_ev); | |
ff80f137 | 4086 | break; |
106b4e66 | 4087 | case 6: |
2d43f671 HMH |
4088 | /* 0x6000-0x6FFF: thermal alarms/notices and |
4089 | * keyboard events */ | |
4090 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
4091 | &ignore_acpi_ev); |
4092 | break; | |
ff80f137 HMH |
4093 | case 7: |
4094 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
4095 | if (tp_features.hotkey_wlsw && |
4096 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 4097 | tpacpi_send_radiosw_update(); |
3b64b51d | 4098 | send_acpi_ev = 0; |
3827e7a3 | 4099 | known_ev = true; |
6a38abbf | 4100 | break; |
6a38abbf | 4101 | } |
ff80f137 HMH |
4102 | /* fallthrough to default */ |
4103 | default: | |
3827e7a3 | 4104 | known_ev = false; |
3b64b51d | 4105 | } |
3827e7a3 | 4106 | if (!known_ev) { |
0978e012 | 4107 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
5cac62ac AS |
4108 | pr_notice("please report the conditions when this event happened to %s\n", |
4109 | TPACPI_MAIL); | |
6a38abbf | 4110 | } |
ff80f137 | 4111 | |
3eea123d | 4112 | /* netlink events */ |
3e5ce914 | 4113 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
4114 | acpi_bus_generate_netlink_event( |
4115 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4116 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4117 | event, hkey); |
3eea123d | 4118 | } |
56b6aeb0 HMH |
4119 | } |
4120 | } | |
4121 | ||
fd3c3a42 | 4122 | static void hotkey_suspend(void) |
a713b4d7 HMH |
4123 | { |
4124 | /* Do these on suspend, we get the events on early resume! */ | |
4125 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
4126 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
4127 | |
4128 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4129 | if (tp_features.has_adaptive_kbd) { |
4130 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
4131 | "GTRW", "dd", 0)) { | |
4132 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
4133 | } |
4134 | } | |
a713b4d7 HMH |
4135 | } |
4136 | ||
5c29d58f HMH |
4137 | static void hotkey_resume(void) |
4138 | { | |
d64c81c4 HMH |
4139 | tpacpi_disable_brightness_delay(); |
4140 | ||
0d922e3b HMH |
4141 | if (hotkey_status_set(true) < 0 || |
4142 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
5cac62ac | 4143 | pr_err("error while attempting to reset the event firmware interface\n"); |
0d922e3b | 4144 | |
733e27c1 | 4145 | tpacpi_send_radiosw_update(); |
6c231bd5 | 4146 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4147 | hotkey_wakeup_reason_notify_change(); |
4148 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4149 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4150 | |
4151 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4152 | if (tp_features.has_adaptive_kbd) { |
4153 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4154 | adaptive_keyboard_prev_mode)) { | |
4155 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4156 | } |
4157 | } | |
5c29d58f HMH |
4158 | } |
4159 | ||
a0416420 | 4160 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4161 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4162 | { |
ae92bd17 | 4163 | int res, status; |
1da177e4 | 4164 | |
d8fd94d9 | 4165 | if (!tp_features.hotkey) { |
887965e6 AD |
4166 | seq_printf(m, "status:\t\tnot supported\n"); |
4167 | return 0; | |
78f81cc4 BD |
4168 | } |
4169 | ||
7646ea88 | 4170 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4171 | return -ERESTARTSYS; |
b2c985e7 HMH |
4172 | res = hotkey_status_get(&status); |
4173 | if (!res) | |
4174 | res = hotkey_mask_get(); | |
40ca9fdf | 4175 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4176 | if (res) |
4177 | return res; | |
1da177e4 | 4178 | |
887965e6 | 4179 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4180 | if (hotkey_all_mask) { |
887965e6 AD |
4181 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4182 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4183 | } else { |
887965e6 AD |
4184 | seq_printf(m, "mask:\t\tnot supported\n"); |
4185 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4186 | } |
4187 | ||
887965e6 | 4188 | return 0; |
1da177e4 LT |
4189 | } |
4190 | ||
406e988b | 4191 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4192 | { |
4193 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4194 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
5cac62ac AS |
4195 | pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n"))) |
4196 | pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4197 | } |
4198 | ||
78f81cc4 | 4199 | static int hotkey_write(char *buf) |
1da177e4 | 4200 | { |
2586d566 | 4201 | int res; |
ae92bd17 | 4202 | u32 mask; |
1da177e4 | 4203 | char *cmd; |
1da177e4 | 4204 | |
d8fd94d9 | 4205 | if (!tp_features.hotkey) |
1da177e4 LT |
4206 | return -ENODEV; |
4207 | ||
7646ea88 | 4208 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4209 | return -ERESTARTSYS; |
40ca9fdf | 4210 | |
0d922e3b | 4211 | mask = hotkey_user_mask; |
78f81cc4 | 4212 | |
40ca9fdf | 4213 | res = 0; |
1da177e4 LT |
4214 | while ((cmd = next_cmd(&buf))) { |
4215 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 4216 | hotkey_enabledisable_warn(1); |
1da177e4 | 4217 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4218 | hotkey_enabledisable_warn(0); |
2586d566 | 4219 | res = -EPERM; |
1da177e4 | 4220 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4221 | mask = (hotkey_all_mask | hotkey_source_mask) |
4222 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4223 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4224 | /* mask set */ | |
4225 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4226 | /* mask set */ | |
40ca9fdf HMH |
4227 | } else { |
4228 | res = -EINVAL; | |
4229 | goto errexit; | |
4230 | } | |
1da177e4 | 4231 | } |
56e2c200 | 4232 | |
0d922e3b | 4233 | if (!res) { |
56e2c200 HMH |
4234 | tpacpi_disclose_usertask("procfs hotkey", |
4235 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4236 | res = hotkey_user_mask_set(mask); |
4237 | } | |
1da177e4 | 4238 | |
40ca9fdf HMH |
4239 | errexit: |
4240 | mutex_unlock(&hotkey_mutex); | |
4241 | return res; | |
78f81cc4 | 4242 | } |
1da177e4 | 4243 | |
1ba90e3a | 4244 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4245 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4246 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
a3c42a46 | 4247 | {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, |
1ba90e3a TR |
4248 | {"", 0}, |
4249 | }; | |
4250 | ||
8d376cd6 | 4251 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4252 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4253 | .notify = hotkey_notify, |
4254 | .handle = &hkey_handle, | |
4255 | .type = ACPI_DEVICE_NOTIFY, | |
4256 | }; | |
4257 | ||
a5763f22 HMH |
4258 | static struct ibm_struct hotkey_driver_data = { |
4259 | .name = "hotkey", | |
a5763f22 HMH |
4260 | .read = hotkey_read, |
4261 | .write = hotkey_write, | |
4262 | .exit = hotkey_exit, | |
5c29d58f | 4263 | .resume = hotkey_resume, |
a713b4d7 | 4264 | .suspend = hotkey_suspend, |
8d376cd6 | 4265 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4266 | }; |
4267 | ||
56b6aeb0 HMH |
4268 | /************************************************************************* |
4269 | * Bluetooth subdriver | |
4270 | */ | |
1da177e4 | 4271 | |
f74a27d4 HMH |
4272 | enum { |
4273 | /* ACPI GBDC/SBDC bits */ | |
4274 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4275 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4276 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4277 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4278 | }; |
4279 | ||
4280 | enum { | |
4281 | /* ACPI \BLTH commands */ | |
4282 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4283 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4284 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4285 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4286 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4287 | }; |
4288 | ||
bee4cd9b HMH |
4289 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4290 | ||
19d337df | 4291 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4292 | { |
4293 | int status; | |
4294 | ||
a73f3091 HMH |
4295 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4296 | if (dbg_bluetoothemul) | |
4297 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4298 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4299 | #endif |
4300 | ||
07431ec8 HMH |
4301 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4302 | return -EIO; | |
4303 | ||
0e74dc26 | 4304 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4305 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4306 | } |
4307 | ||
19d337df | 4308 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4309 | { |
4310 | int status; | |
4311 | ||
bee4cd9b | 4312 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4313 | "will attempt to %s bluetooth\n", |
4314 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4315 | |
a73f3091 HMH |
4316 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4317 | if (dbg_bluetoothemul) { | |
19d337df | 4318 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4319 | return 0; |
4320 | } | |
4321 | #endif | |
4322 | ||
19d337df | 4323 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4324 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4325 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4326 | else | |
4327 | status = 0; | |
19d337df | 4328 | |
07431ec8 HMH |
4329 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4330 | return -EIO; | |
4331 | ||
4332 | return 0; | |
4333 | } | |
f74a27d4 | 4334 | |
d3a6ade4 HMH |
4335 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4336 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4337 | struct device_attribute *attr, | |
4338 | char *buf) | |
4339 | { | |
19d337df JB |
4340 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4341 | attr, buf); | |
d3a6ade4 HMH |
4342 | } |
4343 | ||
4344 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4345 | struct device_attribute *attr, | |
4346 | const char *buf, size_t count) | |
4347 | { | |
19d337df JB |
4348 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4349 | attr, buf, count); | |
d3a6ade4 HMH |
4350 | } |
4351 | ||
b4dd04ac | 4352 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4353 | |
4354 | /* --------------------------------------------------------------------- */ | |
4355 | ||
4356 | static struct attribute *bluetooth_attributes[] = { | |
4357 | &dev_attr_bluetooth_enable.attr, | |
4358 | NULL | |
4359 | }; | |
4360 | ||
4361 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4362 | .attrs = bluetooth_attributes, |
4363 | }; | |
4364 | ||
19d337df JB |
4365 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4366 | .get_status = bluetooth_get_status, | |
4367 | .set_status = bluetooth_set_status, | |
4368 | }; | |
0e74dc26 | 4369 | |
90d9d3c7 HMH |
4370 | static void bluetooth_shutdown(void) |
4371 | { | |
4372 | /* Order firmware to save current state to NVRAM */ | |
4373 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4374 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4375 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4376 | else |
4377 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4378 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4379 | } |
4380 | ||
07431ec8 HMH |
4381 | static void bluetooth_exit(void) |
4382 | { | |
4383 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4384 | &bluetooth_attr_group); | |
19d337df JB |
4385 | |
4386 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4387 | ||
4388 | bluetooth_shutdown(); | |
07431ec8 HMH |
4389 | } |
4390 | ||
a5763f22 | 4391 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4392 | { |
d3a6ade4 | 4393 | int res; |
d6fdd1e9 HMH |
4394 | int status = 0; |
4395 | ||
bee4cd9b HMH |
4396 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4397 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4398 | |
e0c7dfe7 | 4399 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4400 | |
78f81cc4 BD |
4401 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4402 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4403 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4404 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4405 | ||
bee4cd9b HMH |
4406 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4407 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4408 | str_supported(tp_features.bluetooth), |
4409 | status); | |
4410 | ||
a73f3091 HMH |
4411 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4412 | if (dbg_bluetoothemul) { | |
4413 | tp_features.bluetooth = 1; | |
0978e012 | 4414 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4415 | } else |
4416 | #endif | |
3a872080 HMH |
4417 | if (tp_features.bluetooth && |
4418 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4419 | /* no bluetooth hardware present in system */ | |
4420 | tp_features.bluetooth = 0; | |
bee4cd9b | 4421 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4422 | "bluetooth hardware not installed\n"); |
4423 | } | |
4424 | ||
0e74dc26 HMH |
4425 | if (!tp_features.bluetooth) |
4426 | return 1; | |
4427 | ||
0e74dc26 | 4428 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4429 | &bluetooth_tprfk_ops, |
0e74dc26 | 4430 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4431 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4432 | true); |
4433 | if (res) | |
4434 | return res; | |
4435 | ||
4436 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4437 | &bluetooth_attr_group); | |
0e74dc26 | 4438 | if (res) { |
19d337df | 4439 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4440 | return res; |
d6fdd1e9 | 4441 | } |
fe08bc4b | 4442 | |
0e74dc26 | 4443 | return 0; |
1da177e4 LT |
4444 | } |
4445 | ||
d3a6ade4 | 4446 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4447 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4448 | { |
887965e6 | 4449 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4450 | } |
4451 | ||
78f81cc4 | 4452 | static int bluetooth_write(char *buf) |
1da177e4 | 4453 | { |
19d337df | 4454 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4455 | } |
4456 | ||
a5763f22 HMH |
4457 | static struct ibm_struct bluetooth_driver_data = { |
4458 | .name = "bluetooth", | |
4459 | .read = bluetooth_read, | |
4460 | .write = bluetooth_write, | |
d3a6ade4 | 4461 | .exit = bluetooth_exit, |
90d9d3c7 | 4462 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4463 | }; |
4464 | ||
56b6aeb0 HMH |
4465 | /************************************************************************* |
4466 | * Wan subdriver | |
4467 | */ | |
4468 | ||
f74a27d4 HMH |
4469 | enum { |
4470 | /* ACPI GWAN/SWAN bits */ | |
4471 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4472 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4473 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4474 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4475 | }; |
4476 | ||
bee4cd9b HMH |
4477 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4478 | ||
19d337df | 4479 | static int wan_get_status(void) |
07431ec8 HMH |
4480 | { |
4481 | int status; | |
4482 | ||
a73f3091 HMH |
4483 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4484 | if (dbg_wwanemul) | |
4485 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4486 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4487 | #endif |
4488 | ||
07431ec8 HMH |
4489 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4490 | return -EIO; | |
4491 | ||
0e74dc26 | 4492 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4493 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4494 | } |
4495 | ||
19d337df | 4496 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4497 | { |
4498 | int status; | |
4499 | ||
bee4cd9b | 4500 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4501 | "will attempt to %s wwan\n", |
4502 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4503 | |
a73f3091 HMH |
4504 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4505 | if (dbg_wwanemul) { | |
19d337df | 4506 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4507 | return 0; |
4508 | } | |
4509 | #endif | |
4510 | ||
19d337df | 4511 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4512 | status = TP_ACPI_WANCARD_RADIOSSW |
4513 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4514 | else | |
4515 | status = 0; | |
19d337df | 4516 | |
07431ec8 HMH |
4517 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4518 | return -EIO; | |
4519 | ||
4520 | return 0; | |
4521 | } | |
f74a27d4 | 4522 | |
d3a6ade4 HMH |
4523 | /* sysfs wan enable ---------------------------------------------------- */ |
4524 | static ssize_t wan_enable_show(struct device *dev, | |
4525 | struct device_attribute *attr, | |
4526 | char *buf) | |
4527 | { | |
19d337df JB |
4528 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4529 | attr, buf); | |
d3a6ade4 HMH |
4530 | } |
4531 | ||
4532 | static ssize_t wan_enable_store(struct device *dev, | |
4533 | struct device_attribute *attr, | |
4534 | const char *buf, size_t count) | |
4535 | { | |
19d337df JB |
4536 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4537 | attr, buf, count); | |
d3a6ade4 HMH |
4538 | } |
4539 | ||
5fb73bc2 BM |
4540 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4541 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4542 | |
4543 | /* --------------------------------------------------------------------- */ | |
4544 | ||
4545 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4546 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4547 | NULL |
4548 | }; | |
4549 | ||
4550 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4551 | .attrs = wan_attributes, |
4552 | }; | |
4553 | ||
19d337df JB |
4554 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4555 | .get_status = wan_get_status, | |
4556 | .set_status = wan_set_status, | |
4557 | }; | |
0e74dc26 | 4558 | |
90d9d3c7 HMH |
4559 | static void wan_shutdown(void) |
4560 | { | |
4561 | /* Order firmware to save current state to NVRAM */ | |
4562 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4563 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4564 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4565 | else |
4566 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4567 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4568 | } |
4569 | ||
07431ec8 HMH |
4570 | static void wan_exit(void) |
4571 | { | |
4572 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4573 | &wan_attr_group); | |
19d337df JB |
4574 | |
4575 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4576 | ||
4577 | wan_shutdown(); | |
07431ec8 HMH |
4578 | } |
4579 | ||
a5763f22 | 4580 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4581 | { |
d3a6ade4 | 4582 | int res; |
d6fdd1e9 HMH |
4583 | int status = 0; |
4584 | ||
bee4cd9b HMH |
4585 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4586 | "initializing wan subdriver\n"); | |
fe08bc4b | 4587 | |
e0c7dfe7 | 4588 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4589 | |
d8fd94d9 | 4590 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4591 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4592 | ||
bee4cd9b HMH |
4593 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4594 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4595 | str_supported(tp_features.wan), |
4596 | status); | |
4597 | ||
a73f3091 HMH |
4598 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4599 | if (dbg_wwanemul) { | |
4600 | tp_features.wan = 1; | |
0978e012 | 4601 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4602 | } else |
4603 | #endif | |
3a872080 HMH |
4604 | if (tp_features.wan && |
4605 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4606 | /* no wan hardware present in system */ | |
4607 | tp_features.wan = 0; | |
bee4cd9b | 4608 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4609 | "wan hardware not installed\n"); |
4610 | } | |
4611 | ||
0e74dc26 HMH |
4612 | if (!tp_features.wan) |
4613 | return 1; | |
4614 | ||
0e74dc26 | 4615 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4616 | &wan_tprfk_ops, |
0e74dc26 | 4617 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4618 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4619 | true); |
4620 | if (res) | |
4621 | return res; | |
4622 | ||
4623 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4624 | &wan_attr_group); | |
4625 | ||
0e74dc26 | 4626 | if (res) { |
19d337df | 4627 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4628 | return res; |
d6fdd1e9 | 4629 | } |
fe08bc4b | 4630 | |
0e74dc26 | 4631 | return 0; |
42adb53c JF |
4632 | } |
4633 | ||
d3a6ade4 | 4634 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4635 | static int wan_read(struct seq_file *m) |
42adb53c | 4636 | { |
887965e6 | 4637 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4638 | } |
4639 | ||
4640 | static int wan_write(char *buf) | |
4641 | { | |
19d337df | 4642 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4643 | } |
4644 | ||
a5763f22 HMH |
4645 | static struct ibm_struct wan_driver_data = { |
4646 | .name = "wan", | |
4647 | .read = wan_read, | |
4648 | .write = wan_write, | |
d3a6ade4 | 4649 | .exit = wan_exit, |
90d9d3c7 | 4650 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4651 | }; |
4652 | ||
0045c0aa HMH |
4653 | /************************************************************************* |
4654 | * UWB subdriver | |
4655 | */ | |
4656 | ||
4657 | enum { | |
4658 | /* ACPI GUWB/SUWB bits */ | |
4659 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4660 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4661 | }; | |
4662 | ||
bee4cd9b HMH |
4663 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4664 | ||
19d337df | 4665 | static int uwb_get_status(void) |
0045c0aa HMH |
4666 | { |
4667 | int status; | |
4668 | ||
0045c0aa HMH |
4669 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4670 | if (dbg_uwbemul) | |
4671 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4672 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4673 | #endif |
4674 | ||
4675 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4676 | return -EIO; | |
4677 | ||
4678 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4679 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4680 | } |
4681 | ||
19d337df | 4682 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4683 | { |
4684 | int status; | |
4685 | ||
bee4cd9b | 4686 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4687 | "will attempt to %s UWB\n", |
4688 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4689 | |
0045c0aa HMH |
4690 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4691 | if (dbg_uwbemul) { | |
19d337df | 4692 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4693 | return 0; |
4694 | } | |
4695 | #endif | |
4696 | ||
19d337df JB |
4697 | if (state == TPACPI_RFK_RADIO_ON) |
4698 | status = TP_ACPI_UWB_RADIOSSW; | |
4699 | else | |
4700 | status = 0; | |
4701 | ||
0045c0aa HMH |
4702 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4703 | return -EIO; | |
4704 | ||
0045c0aa HMH |
4705 | return 0; |
4706 | } | |
4707 | ||
4708 | /* --------------------------------------------------------------------- */ | |
4709 | ||
19d337df JB |
4710 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4711 | .get_status = uwb_get_status, | |
4712 | .set_status = uwb_set_status, | |
4713 | }; | |
0045c0aa HMH |
4714 | |
4715 | static void uwb_exit(void) | |
4716 | { | |
19d337df | 4717 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4718 | } |
4719 | ||
4720 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4721 | { | |
4722 | int res; | |
4723 | int status = 0; | |
4724 | ||
bee4cd9b HMH |
4725 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4726 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4727 | |
4728 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4729 | ||
4730 | tp_features.uwb = hkey_handle && | |
4731 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4732 | ||
bee4cd9b HMH |
4733 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4734 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4735 | str_supported(tp_features.uwb), |
4736 | status); | |
4737 | ||
4738 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4739 | if (dbg_uwbemul) { | |
4740 | tp_features.uwb = 1; | |
0978e012 | 4741 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4742 | } else |
4743 | #endif | |
4744 | if (tp_features.uwb && | |
4745 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4746 | /* no uwb hardware present in system */ | |
4747 | tp_features.uwb = 0; | |
4748 | dbg_printk(TPACPI_DBG_INIT, | |
4749 | "uwb hardware not installed\n"); | |
4750 | } | |
4751 | ||
4752 | if (!tp_features.uwb) | |
4753 | return 1; | |
4754 | ||
4755 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4756 | &uwb_tprfk_ops, |
0045c0aa | 4757 | RFKILL_TYPE_UWB, |
bee4cd9b | 4758 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4759 | false); |
0045c0aa HMH |
4760 | return res; |
4761 | } | |
4762 | ||
4763 | static struct ibm_struct uwb_driver_data = { | |
4764 | .name = "uwb", | |
4765 | .exit = uwb_exit, | |
4766 | .flags.experimental = 1, | |
4767 | }; | |
4768 | ||
56b6aeb0 HMH |
4769 | /************************************************************************* |
4770 | * Video subdriver | |
4771 | */ | |
4772 | ||
d7c1d17d HMH |
4773 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4774 | ||
f74a27d4 HMH |
4775 | enum video_access_mode { |
4776 | TPACPI_VIDEO_NONE = 0, | |
4777 | TPACPI_VIDEO_570, /* 570 */ | |
4778 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4779 | TPACPI_VIDEO_NEW, /* all others */ | |
4780 | }; | |
4781 | ||
4782 | enum { /* video status flags, based on VIDEO_570 */ | |
4783 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4784 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4785 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4786 | }; | |
4787 | ||
4788 | enum { /* TPACPI_VIDEO_570 constants */ | |
4789 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4790 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4791 | * video_status_flags */ | |
4792 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4793 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4794 | }; | |
4795 | ||
9a8e1738 HMH |
4796 | static enum video_access_mode video_supported; |
4797 | static int video_orig_autosw; | |
78f81cc4 | 4798 | |
f74a27d4 HMH |
4799 | static int video_autosw_get(void); |
4800 | static int video_autosw_set(int enable); | |
4801 | ||
112a6ee0 JP |
4802 | TPACPI_HANDLE(vid, root, |
4803 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4804 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4805 | "\\_SB.PCI0.VID0", /* 770e */ | |
4806 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4807 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4808 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4809 | ); /* R30, R31 */ | |
4810 | ||
e0c7dfe7 | 4811 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4812 | |
a5763f22 | 4813 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4814 | { |
78f81cc4 BD |
4815 | int ivga; |
4816 | ||
fe08bc4b HMH |
4817 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4818 | ||
e0c7dfe7 | 4819 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4820 | if (tpacpi_is_ibm()) |
4821 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4822 | |
78f81cc4 BD |
4823 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4824 | /* G41, assume IVGA doesn't change */ | |
4825 | vid_handle = vid2_handle; | |
4826 | ||
4827 | if (!vid_handle) | |
4828 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4829 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4830 | else if (tpacpi_is_ibm() && |
4831 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4832 | /* 570 */ |
efa27145 | 4833 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4834 | else if (tpacpi_is_ibm() && |
4835 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4836 | /* 600e/x, 770e, 770x */ |
efa27145 | 4837 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4838 | else |
4839 | /* all others */ | |
efa27145 | 4840 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4841 | |
fe08bc4b HMH |
4842 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4843 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4844 | video_supported); | |
4845 | ||
72a979f0 | 4846 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
4847 | } |
4848 | ||
56b6aeb0 HMH |
4849 | static void video_exit(void) |
4850 | { | |
83f34724 HMH |
4851 | dbg_printk(TPACPI_DBG_EXIT, |
4852 | "restoring original video autoswitch mode\n"); | |
4853 | if (video_autosw_set(video_orig_autosw)) | |
5cac62ac | 4854 | pr_err("error while trying to restore original video autoswitch mode\n"); |
56b6aeb0 HMH |
4855 | } |
4856 | ||
83f34724 | 4857 | static int video_outputsw_get(void) |
1da177e4 LT |
4858 | { |
4859 | int status = 0; | |
4860 | int i; | |
4861 | ||
83f34724 HMH |
4862 | switch (video_supported) { |
4863 | case TPACPI_VIDEO_570: | |
4864 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4865 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4866 | return -EIO; | |
4867 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4868 | break; | |
4869 | case TPACPI_VIDEO_770: | |
4870 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4871 | return -EIO; | |
4872 | if (i) | |
4873 | status |= TP_ACPI_VIDEO_S_LCD; | |
4874 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4875 | return -EIO; | |
4876 | if (i) | |
4877 | status |= TP_ACPI_VIDEO_S_CRT; | |
4878 | break; | |
4879 | case TPACPI_VIDEO_NEW: | |
4880 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4881 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4882 | return -EIO; | |
4883 | if (i) | |
4884 | status |= TP_ACPI_VIDEO_S_CRT; | |
4885 | ||
4886 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4887 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4888 | return -EIO; | |
4889 | if (i) | |
4890 | status |= TP_ACPI_VIDEO_S_LCD; | |
4891 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4892 | return -EIO; | |
4893 | if (i) | |
4894 | status |= TP_ACPI_VIDEO_S_DVI; | |
4895 | break; | |
4896 | default: | |
4897 | return -ENOSYS; | |
78f81cc4 BD |
4898 | } |
4899 | ||
4900 | return status; | |
4901 | } | |
1da177e4 | 4902 | |
83f34724 | 4903 | static int video_outputsw_set(int status) |
78f81cc4 | 4904 | { |
83f34724 HMH |
4905 | int autosw; |
4906 | int res = 0; | |
4907 | ||
4908 | switch (video_supported) { | |
4909 | case TPACPI_VIDEO_570: | |
4910 | res = acpi_evalf(NULL, NULL, | |
4911 | "\\_SB.PHS2", "vdd", | |
4912 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4913 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4914 | break; | |
4915 | case TPACPI_VIDEO_770: | |
4916 | autosw = video_autosw_get(); | |
4917 | if (autosw < 0) | |
4918 | return autosw; | |
1da177e4 | 4919 | |
83f34724 HMH |
4920 | res = video_autosw_set(1); |
4921 | if (res) | |
4922 | return res; | |
4923 | res = acpi_evalf(vid_handle, NULL, | |
4924 | "ASWT", "vdd", status * 0x100, 0); | |
4925 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4926 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
4927 | return -EIO; |
4928 | } | |
4929 | break; | |
4930 | case TPACPI_VIDEO_NEW: | |
4931 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4932 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4933 | break; |
4934 | default: | |
4935 | return -ENOSYS; | |
4936 | } | |
1da177e4 | 4937 | |
72a979f0 | 4938 | return (res) ? 0 : -EIO; |
1da177e4 LT |
4939 | } |
4940 | ||
83f34724 | 4941 | static int video_autosw_get(void) |
78f81cc4 | 4942 | { |
83f34724 | 4943 | int autosw = 0; |
78f81cc4 | 4944 | |
83f34724 HMH |
4945 | switch (video_supported) { |
4946 | case TPACPI_VIDEO_570: | |
4947 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4948 | return -EIO; | |
4949 | break; | |
4950 | case TPACPI_VIDEO_770: | |
4951 | case TPACPI_VIDEO_NEW: | |
4952 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4953 | return -EIO; | |
4954 | break; | |
4955 | default: | |
4956 | return -ENOSYS; | |
4957 | } | |
78f81cc4 | 4958 | |
83f34724 | 4959 | return autosw & 1; |
78f81cc4 BD |
4960 | } |
4961 | ||
83f34724 | 4962 | static int video_autosw_set(int enable) |
78f81cc4 | 4963 | { |
72a979f0 | 4964 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
4965 | return -EIO; |
4966 | return 0; | |
78f81cc4 BD |
4967 | } |
4968 | ||
83f34724 | 4969 | static int video_outputsw_cycle(void) |
78f81cc4 | 4970 | { |
83f34724 HMH |
4971 | int autosw = video_autosw_get(); |
4972 | int res; | |
78f81cc4 | 4973 | |
83f34724 HMH |
4974 | if (autosw < 0) |
4975 | return autosw; | |
78f81cc4 | 4976 | |
83f34724 HMH |
4977 | switch (video_supported) { |
4978 | case TPACPI_VIDEO_570: | |
4979 | res = video_autosw_set(1); | |
4980 | if (res) | |
4981 | return res; | |
4982 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4983 | break; | |
4984 | case TPACPI_VIDEO_770: | |
4985 | case TPACPI_VIDEO_NEW: | |
4986 | res = video_autosw_set(1); | |
4987 | if (res) | |
4988 | return res; | |
4989 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4990 | break; | |
4991 | default: | |
4992 | return -ENOSYS; | |
4993 | } | |
4994 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4995 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 4996 | return -EIO; |
78f81cc4 BD |
4997 | } |
4998 | ||
72a979f0 | 4999 | return (res) ? 0 : -EIO; |
83f34724 HMH |
5000 | } |
5001 | ||
5002 | static int video_expand_toggle(void) | |
5003 | { | |
5004 | switch (video_supported) { | |
5005 | case TPACPI_VIDEO_570: | |
72a979f0 | 5006 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
5007 | 0 : -EIO; |
5008 | case TPACPI_VIDEO_770: | |
72a979f0 | 5009 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
5010 | 0 : -EIO; |
5011 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 5012 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
5013 | 0 : -EIO; |
5014 | default: | |
5015 | return -ENOSYS; | |
5016 | } | |
5017 | /* not reached */ | |
78f81cc4 BD |
5018 | } |
5019 | ||
887965e6 | 5020 | static int video_read(struct seq_file *m) |
56b6aeb0 | 5021 | { |
83f34724 | 5022 | int status, autosw; |
56b6aeb0 | 5023 | |
83f34724 | 5024 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
5025 | seq_printf(m, "status:\t\tnot supported\n"); |
5026 | return 0; | |
56b6aeb0 HMH |
5027 | } |
5028 | ||
b525c06c HMH |
5029 | /* Even reads can crash X.org, so... */ |
5030 | if (!capable(CAP_SYS_ADMIN)) | |
5031 | return -EPERM; | |
5032 | ||
83f34724 HMH |
5033 | status = video_outputsw_get(); |
5034 | if (status < 0) | |
5035 | return status; | |
5036 | ||
5037 | autosw = video_autosw_get(); | |
5038 | if (autosw < 0) | |
5039 | return autosw; | |
5040 | ||
887965e6 AD |
5041 | seq_printf(m, "status:\t\tsupported\n"); |
5042 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
5043 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 5044 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5045 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
5046 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
5047 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
5048 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 5049 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5050 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
5051 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
5052 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 5053 | |
887965e6 | 5054 | return 0; |
56b6aeb0 HMH |
5055 | } |
5056 | ||
78f81cc4 | 5057 | static int video_write(char *buf) |
1da177e4 LT |
5058 | { |
5059 | char *cmd; | |
5060 | int enable, disable, status; | |
83f34724 | 5061 | int res; |
1da177e4 | 5062 | |
83f34724 | 5063 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
5064 | return -ENODEV; |
5065 | ||
b525c06c HMH |
5066 | /* Even reads can crash X.org, let alone writes... */ |
5067 | if (!capable(CAP_SYS_ADMIN)) | |
5068 | return -EPERM; | |
5069 | ||
83f34724 HMH |
5070 | enable = 0; |
5071 | disable = 0; | |
1da177e4 LT |
5072 | |
5073 | while ((cmd = next_cmd(&buf))) { | |
5074 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 5075 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5076 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 5077 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5078 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 5079 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 5080 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 5081 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 5082 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5083 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 5084 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 5085 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5086 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 5087 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 5088 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
5089 | res = video_autosw_set(1); |
5090 | if (res) | |
5091 | return res; | |
1da177e4 | 5092 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
5093 | res = video_autosw_set(0); |
5094 | if (res) | |
5095 | return res; | |
1da177e4 | 5096 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
5097 | res = video_outputsw_cycle(); |
5098 | if (res) | |
5099 | return res; | |
1da177e4 | 5100 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
5101 | res = video_expand_toggle(); |
5102 | if (res) | |
5103 | return res; | |
1da177e4 LT |
5104 | } else |
5105 | return -EINVAL; | |
5106 | } | |
5107 | ||
5108 | if (enable || disable) { | |
83f34724 HMH |
5109 | status = video_outputsw_get(); |
5110 | if (status < 0) | |
5111 | return status; | |
5112 | res = video_outputsw_set((status & ~disable) | enable); | |
5113 | if (res) | |
5114 | return res; | |
1da177e4 LT |
5115 | } |
5116 | ||
5117 | return 0; | |
5118 | } | |
5119 | ||
a5763f22 HMH |
5120 | static struct ibm_struct video_driver_data = { |
5121 | .name = "video", | |
5122 | .read = video_read, | |
5123 | .write = video_write, | |
5124 | .exit = video_exit, | |
5125 | }; | |
5126 | ||
d7c1d17d HMH |
5127 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
5128 | ||
bb28f3d5 PR |
5129 | /************************************************************************* |
5130 | * Keyboard backlight subdriver | |
5131 | */ | |
5132 | ||
c685e20d HG |
5133 | static enum led_brightness kbdlight_brightness; |
5134 | static DEFINE_MUTEX(kbdlight_mutex); | |
5135 | ||
bb28f3d5 PR |
5136 | static int kbdlight_set_level(int level) |
5137 | { | |
c685e20d HG |
5138 | int ret = 0; |
5139 | ||
bb28f3d5 PR |
5140 | if (!hkey_handle) |
5141 | return -ENXIO; | |
5142 | ||
c685e20d HG |
5143 | mutex_lock(&kbdlight_mutex); |
5144 | ||
bb28f3d5 | 5145 | if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) |
c685e20d HG |
5146 | ret = -EIO; |
5147 | else | |
5148 | kbdlight_brightness = level; | |
bb28f3d5 | 5149 | |
c685e20d HG |
5150 | mutex_unlock(&kbdlight_mutex); |
5151 | ||
5152 | return ret; | |
bb28f3d5 PR |
5153 | } |
5154 | ||
5155 | static int kbdlight_get_level(void) | |
5156 | { | |
5157 | int status = 0; | |
5158 | ||
5159 | if (!hkey_handle) | |
5160 | return -ENXIO; | |
5161 | ||
5162 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) | |
5163 | return -EIO; | |
5164 | ||
5165 | if (status < 0) | |
5166 | return status; | |
5167 | ||
5168 | return status & 0x3; | |
5169 | } | |
5170 | ||
5171 | static bool kbdlight_is_supported(void) | |
5172 | { | |
5173 | int status = 0; | |
5174 | ||
5175 | if (!hkey_handle) | |
5176 | return false; | |
5177 | ||
5178 | if (!acpi_has_method(hkey_handle, "MLCG")) { | |
5179 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); | |
5180 | return false; | |
5181 | } | |
5182 | ||
5183 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { | |
5184 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); | |
5185 | return false; | |
5186 | } | |
5187 | ||
5188 | if (status < 0) { | |
5189 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); | |
5190 | return false; | |
5191 | } | |
5192 | ||
5193 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); | |
5194 | /* | |
5195 | * Guessed test for keyboard backlight: | |
5196 | * | |
5197 | * Machines with backlight keyboard return: | |
5198 | * b010100000010000000XX - ThinkPad X1 Carbon 3rd | |
5199 | * b110100010010000000XX - ThinkPad x230 | |
5200 | * b010100000010000000XX - ThinkPad x240 | |
5201 | * b010100000010000000XX - ThinkPad W541 | |
5202 | * (XX is current backlight level) | |
5203 | * | |
5204 | * Machines without backlight keyboard return: | |
5205 | * b10100001000000000000 - ThinkPad x230 | |
5206 | * b10110001000000000000 - ThinkPad E430 | |
5207 | * b00000000000000000000 - ThinkPad E450 | |
5208 | * | |
5209 | * Candidate BITs for detection test (XOR): | |
5210 | * b01000000001000000000 | |
5211 | * ^ | |
5212 | */ | |
5213 | return status & BIT(9); | |
5214 | } | |
5215 | ||
86ec0c2c | 5216 | static int kbdlight_sysfs_set(struct led_classdev *led_cdev, |
bb28f3d5 PR |
5217 | enum led_brightness brightness) |
5218 | { | |
86ec0c2c | 5219 | return kbdlight_set_level(brightness); |
bb28f3d5 PR |
5220 | } |
5221 | ||
5222 | static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) | |
5223 | { | |
5224 | int level; | |
5225 | ||
5226 | level = kbdlight_get_level(); | |
5227 | if (level < 0) | |
5228 | return 0; | |
5229 | ||
5230 | return level; | |
5231 | } | |
5232 | ||
5233 | static struct tpacpi_led_classdev tpacpi_led_kbdlight = { | |
5234 | .led_classdev = { | |
5235 | .name = "tpacpi::kbd_backlight", | |
5236 | .max_brightness = 2, | |
c685e20d | 5237 | .flags = LED_BRIGHT_HW_CHANGED, |
86ec0c2c | 5238 | .brightness_set_blocking = &kbdlight_sysfs_set, |
bb28f3d5 | 5239 | .brightness_get = &kbdlight_sysfs_get, |
bb28f3d5 PR |
5240 | } |
5241 | }; | |
5242 | ||
5243 | static int __init kbdlight_init(struct ibm_init_struct *iibm) | |
5244 | { | |
5245 | int rc; | |
5246 | ||
5247 | vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); | |
5248 | ||
5249 | TPACPI_ACPIHANDLE_INIT(hkey); | |
bb28f3d5 PR |
5250 | |
5251 | if (!kbdlight_is_supported()) { | |
5252 | tp_features.kbdlight = 0; | |
5253 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); | |
5254 | return 1; | |
5255 | } | |
5256 | ||
c685e20d | 5257 | kbdlight_brightness = kbdlight_sysfs_get(NULL); |
bb28f3d5 PR |
5258 | tp_features.kbdlight = 1; |
5259 | ||
5260 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5261 | &tpacpi_led_kbdlight.led_classdev); | |
5262 | if (rc < 0) { | |
5263 | tp_features.kbdlight = 0; | |
5264 | return rc; | |
5265 | } | |
5266 | ||
c685e20d HG |
5267 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
5268 | TP_ACPI_HKEY_KBD_LIGHT_MASK); | |
bb28f3d5 PR |
5269 | return 0; |
5270 | } | |
5271 | ||
5272 | static void kbdlight_exit(void) | |
5273 | { | |
5274 | if (tp_features.kbdlight) | |
5275 | led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5276 | } |
5277 | ||
afcedebc MTT |
5278 | static int kbdlight_set_level_and_update(int level) |
5279 | { | |
5280 | int ret; | |
5281 | struct led_classdev *led_cdev; | |
5282 | ||
5283 | ret = kbdlight_set_level(level); | |
5284 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5285 | ||
5286 | if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) | |
5287 | led_cdev->brightness = level; | |
5288 | ||
5289 | return ret; | |
5290 | } | |
5291 | ||
bb28f3d5 PR |
5292 | static int kbdlight_read(struct seq_file *m) |
5293 | { | |
5294 | int level; | |
5295 | ||
5296 | if (!tp_features.kbdlight) { | |
5297 | seq_printf(m, "status:\t\tnot supported\n"); | |
5298 | } else { | |
5299 | level = kbdlight_get_level(); | |
5300 | if (level < 0) | |
5301 | seq_printf(m, "status:\t\terror %d\n", level); | |
5302 | else | |
5303 | seq_printf(m, "status:\t\t%d\n", level); | |
5304 | seq_printf(m, "commands:\t0, 1, 2\n"); | |
5305 | } | |
5306 | ||
5307 | return 0; | |
5308 | } | |
5309 | ||
5310 | static int kbdlight_write(char *buf) | |
5311 | { | |
5312 | char *cmd; | |
5313 | int level = -1; | |
5314 | ||
5315 | if (!tp_features.kbdlight) | |
5316 | return -ENODEV; | |
5317 | ||
5318 | while ((cmd = next_cmd(&buf))) { | |
5319 | if (strlencmp(cmd, "0") == 0) | |
5320 | level = 0; | |
5321 | else if (strlencmp(cmd, "1") == 0) | |
5322 | level = 1; | |
5323 | else if (strlencmp(cmd, "2") == 0) | |
5324 | level = 2; | |
5325 | else | |
5326 | return -EINVAL; | |
5327 | } | |
5328 | ||
5329 | if (level == -1) | |
5330 | return -EINVAL; | |
5331 | ||
afcedebc MTT |
5332 | return kbdlight_set_level_and_update(level); |
5333 | } | |
5334 | ||
5335 | static void kbdlight_suspend(void) | |
5336 | { | |
5337 | struct led_classdev *led_cdev; | |
5338 | ||
5339 | if (!tp_features.kbdlight) | |
5340 | return; | |
5341 | ||
5342 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5343 | led_update_brightness(led_cdev); | |
5344 | led_classdev_suspend(led_cdev); | |
5345 | } | |
5346 | ||
5347 | static void kbdlight_resume(void) | |
5348 | { | |
5349 | if (!tp_features.kbdlight) | |
5350 | return; | |
5351 | ||
5352 | led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5353 | } |
5354 | ||
5355 | static struct ibm_struct kbdlight_driver_data = { | |
5356 | .name = "kbdlight", | |
5357 | .read = kbdlight_read, | |
5358 | .write = kbdlight_write, | |
afcedebc MTT |
5359 | .suspend = kbdlight_suspend, |
5360 | .resume = kbdlight_resume, | |
bb28f3d5 PR |
5361 | .exit = kbdlight_exit, |
5362 | }; | |
5363 | ||
56b6aeb0 HMH |
5364 | /************************************************************************* |
5365 | * Light (thinklight) subdriver | |
5366 | */ | |
1da177e4 | 5367 | |
e0c7dfe7 HMH |
5368 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
5369 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 5370 | |
4fa6811b HMH |
5371 | static int light_get_status(void) |
5372 | { | |
5373 | int status = 0; | |
5374 | ||
5375 | if (tp_features.light_status) { | |
5376 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5377 | return -EIO; | |
5378 | return (!!status); | |
5379 | } | |
5380 | ||
5381 | return -ENXIO; | |
5382 | } | |
5383 | ||
5384 | static int light_set_status(int status) | |
5385 | { | |
5386 | int rc; | |
5387 | ||
5388 | if (tp_features.light) { | |
5389 | if (cmos_handle) { | |
5390 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5391 | (status) ? |
4fa6811b HMH |
5392 | TP_CMOS_THINKLIGHT_ON : |
5393 | TP_CMOS_THINKLIGHT_OFF); | |
5394 | } else { | |
5395 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5396 | (status) ? 1 : 0); |
4fa6811b | 5397 | } |
72a979f0 | 5398 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5399 | } |
5400 | ||
5401 | return -ENXIO; | |
5402 | } | |
5403 | ||
86ec0c2c | 5404 | static int light_sysfs_set(struct led_classdev *led_cdev, |
e306501d HMH |
5405 | enum led_brightness brightness) |
5406 | { | |
86ec0c2c HG |
5407 | return light_set_status((brightness != LED_OFF) ? |
5408 | TPACPI_LED_ON : TPACPI_LED_OFF); | |
e306501d HMH |
5409 | } |
5410 | ||
5411 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5412 | { | |
72a979f0 | 5413 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5414 | } |
5415 | ||
5416 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5417 | .led_classdev = { | |
5418 | .name = "tpacpi::thinklight", | |
86ec0c2c | 5419 | .brightness_set_blocking = &light_sysfs_set, |
e306501d HMH |
5420 | .brightness_get = &light_sysfs_get, |
5421 | } | |
5422 | }; | |
5423 | ||
a5763f22 | 5424 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5425 | { |
9c0a76e1 | 5426 | int rc; |
e306501d | 5427 | |
fe08bc4b HMH |
5428 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5429 | ||
e28393c0 HMH |
5430 | if (tpacpi_is_ibm()) { |
5431 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5432 | TPACPI_ACPIHANDLE_INIT(lght); | |
5433 | } | |
e0c7dfe7 | 5434 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5435 | |
78f81cc4 | 5436 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5437 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5438 | |
d8fd94d9 | 5439 | if (tp_features.light) |
78f81cc4 BD |
5440 | /* light status not supported on |
5441 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5442 | tp_features.light_status = |
5443 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5444 | |
9c0a76e1 HMH |
5445 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5446 | str_supported(tp_features.light), | |
5447 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5448 | |
9c0a76e1 HMH |
5449 | if (!tp_features.light) |
5450 | return 1; | |
5451 | ||
5452 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5453 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5454 | |
5455 | if (rc < 0) { | |
5456 | tp_features.light = 0; | |
5457 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5458 | } else { |
5459 | rc = 0; | |
e306501d | 5460 | } |
9c0a76e1 | 5461 | |
e306501d HMH |
5462 | return rc; |
5463 | } | |
5464 | ||
5465 | static void light_exit(void) | |
5466 | { | |
5467 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
1da177e4 LT |
5468 | } |
5469 | ||
887965e6 | 5470 | static int light_read(struct seq_file *m) |
1da177e4 | 5471 | { |
4fa6811b | 5472 | int status; |
1da177e4 | 5473 | |
d8fd94d9 | 5474 | if (!tp_features.light) { |
887965e6 | 5475 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5476 | } else if (!tp_features.light_status) { |
887965e6 AD |
5477 | seq_printf(m, "status:\t\tunknown\n"); |
5478 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5479 | } else { |
4fa6811b HMH |
5480 | status = light_get_status(); |
5481 | if (status < 0) | |
5482 | return status; | |
887965e6 AD |
5483 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5484 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5485 | } |
1da177e4 | 5486 | |
887965e6 | 5487 | return 0; |
1da177e4 LT |
5488 | } |
5489 | ||
78f81cc4 | 5490 | static int light_write(char *buf) |
1da177e4 | 5491 | { |
1da177e4 | 5492 | char *cmd; |
4fa6811b | 5493 | int newstatus = 0; |
78f81cc4 | 5494 | |
d8fd94d9 | 5495 | if (!tp_features.light) |
78f81cc4 BD |
5496 | return -ENODEV; |
5497 | ||
1da177e4 LT |
5498 | while ((cmd = next_cmd(&buf))) { |
5499 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5500 | newstatus = 1; |
1da177e4 | 5501 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5502 | newstatus = 0; |
1da177e4 LT |
5503 | } else |
5504 | return -EINVAL; | |
1da177e4 LT |
5505 | } |
5506 | ||
4fa6811b | 5507 | return light_set_status(newstatus); |
1da177e4 LT |
5508 | } |
5509 | ||
a5763f22 HMH |
5510 | static struct ibm_struct light_driver_data = { |
5511 | .name = "light", | |
5512 | .read = light_read, | |
5513 | .write = light_write, | |
e306501d | 5514 | .exit = light_exit, |
a5763f22 HMH |
5515 | }; |
5516 | ||
56b6aeb0 HMH |
5517 | /************************************************************************* |
5518 | * CMOS subdriver | |
5519 | */ | |
5520 | ||
b616004c HMH |
5521 | /* sysfs cmos_command -------------------------------------------------- */ |
5522 | static ssize_t cmos_command_store(struct device *dev, | |
5523 | struct device_attribute *attr, | |
5524 | const char *buf, size_t count) | |
5525 | { | |
5526 | unsigned long cmos_cmd; | |
5527 | int res; | |
5528 | ||
5529 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5530 | return -EINVAL; | |
5531 | ||
5532 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5533 | return (res) ? res : count; |
b616004c HMH |
5534 | } |
5535 | ||
b4dd04ac | 5536 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5537 | |
5538 | /* --------------------------------------------------------------------- */ | |
5539 | ||
a5763f22 | 5540 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5541 | { |
b616004c HMH |
5542 | int res; |
5543 | ||
fe08bc4b HMH |
5544 | vdbg_printk(TPACPI_DBG_INIT, |
5545 | "initializing cmos commands subdriver\n"); | |
5546 | ||
e0c7dfe7 | 5547 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5548 | |
fe08bc4b HMH |
5549 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5550 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5551 | |
5552 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5553 | if (res) | |
5554 | return res; | |
5555 | ||
72a979f0 | 5556 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5557 | } |
5558 | ||
b616004c HMH |
5559 | static void cmos_exit(void) |
5560 | { | |
5561 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5562 | } | |
5563 | ||
887965e6 | 5564 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5565 | { |
78f81cc4 BD |
5566 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5567 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5568 | if (!cmos_handle) |
887965e6 | 5569 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5570 | else { |
887965e6 AD |
5571 | seq_printf(m, "status:\t\tsupported\n"); |
5572 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5573 | } |
5574 | ||
887965e6 | 5575 | return 0; |
1da177e4 LT |
5576 | } |
5577 | ||
78f81cc4 | 5578 | static int cmos_write(char *buf) |
1da177e4 LT |
5579 | { |
5580 | char *cmd; | |
c9bea99c | 5581 | int cmos_cmd, res; |
1da177e4 LT |
5582 | |
5583 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5584 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5585 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5586 | /* cmos_cmd set */ |
5587 | } else | |
5588 | return -EINVAL; | |
5589 | ||
c9bea99c HMH |
5590 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5591 | if (res) | |
5592 | return res; | |
1da177e4 LT |
5593 | } |
5594 | ||
5595 | return 0; | |
78f81cc4 BD |
5596 | } |
5597 | ||
a5763f22 HMH |
5598 | static struct ibm_struct cmos_driver_data = { |
5599 | .name = "cmos", | |
5600 | .read = cmos_read, | |
5601 | .write = cmos_write, | |
b616004c | 5602 | .exit = cmos_exit, |
a5763f22 | 5603 | }; |
56b6aeb0 HMH |
5604 | |
5605 | /************************************************************************* | |
5606 | * LED subdriver | |
5607 | */ | |
5608 | ||
f74a27d4 HMH |
5609 | enum led_access_mode { |
5610 | TPACPI_LED_NONE = 0, | |
5611 | TPACPI_LED_570, /* 570 */ | |
5612 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5613 | TPACPI_LED_NEW, /* all others */ | |
5614 | }; | |
5615 | ||
5616 | enum { /* For TPACPI_LED_OLD */ | |
5617 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5618 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5619 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5620 | }; | |
5621 | ||
9a8e1738 | 5622 | static enum led_access_mode led_supported; |
78f81cc4 | 5623 | |
2cbb5c8f | 5624 | static acpi_handle led_handle; |
56b6aeb0 | 5625 | |
f21179a4 | 5626 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5627 | static struct tpacpi_led_classdev *tpacpi_leds; |
5628 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5629 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5630 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5631 | "tpacpi::power", | |
5632 | "tpacpi:orange:batt", | |
5633 | "tpacpi:green:batt", | |
5634 | "tpacpi::dock_active", | |
5635 | "tpacpi::bay_active", | |
5636 | "tpacpi::dock_batt", | |
5637 | "tpacpi::unknown_led", | |
5638 | "tpacpi::standby", | |
f21179a4 HMH |
5639 | "tpacpi::dock_status1", |
5640 | "tpacpi::dock_status2", | |
5641 | "tpacpi::unknown_led2", | |
5642 | "tpacpi::unknown_led3", | |
5643 | "tpacpi::thinkvantage", | |
af116101 | 5644 | }; |
f21179a4 | 5645 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5646 | |
5647 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5648 | { | |
5649 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5650 | return false; | |
5651 | #else | |
f21179a4 | 5652 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5653 | #endif |
5654 | } | |
af116101 | 5655 | |
24e45bbe | 5656 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5657 | { |
5658 | int status; | |
af116101 | 5659 | enum led_status_t led_s; |
4fa6811b HMH |
5660 | |
5661 | switch (led_supported) { | |
5662 | case TPACPI_LED_570: | |
5663 | if (!acpi_evalf(ec_handle, | |
5664 | &status, "GLED", "dd", 1 << led)) | |
5665 | return -EIO; | |
72a979f0 | 5666 | led_s = (status == 0) ? |
4fa6811b | 5667 | TPACPI_LED_OFF : |
72a979f0 | 5668 | ((status == 1) ? |
4fa6811b HMH |
5669 | TPACPI_LED_ON : |
5670 | TPACPI_LED_BLINK); | |
af116101 HMH |
5671 | tpacpi_led_state_cache[led] = led_s; |
5672 | return led_s; | |
4fa6811b HMH |
5673 | default: |
5674 | return -ENXIO; | |
5675 | } | |
5676 | ||
5677 | /* not reached */ | |
5678 | } | |
5679 | ||
24e45bbe HMH |
5680 | static int led_set_status(const unsigned int led, |
5681 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5682 | { |
5683 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5684 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5685 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5686 | |
5687 | int rc = 0; | |
5688 | ||
5689 | switch (led_supported) { | |
5690 | case TPACPI_LED_570: | |
24e45bbe | 5691 | /* 570 */ |
a4d5effc | 5692 | if (unlikely(led > 7)) |
24e45bbe | 5693 | return -EINVAL; |
a4d5effc HMH |
5694 | if (unlikely(tpacpi_is_led_restricted(led))) |
5695 | return -EPERM; | |
24e45bbe HMH |
5696 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5697 | (1 << led), led_sled_arg1[ledstatus])) | |
5698 | rc = -EIO; | |
5699 | break; | |
4fa6811b | 5700 | case TPACPI_LED_OLD: |
24e45bbe | 5701 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5702 | if (unlikely(led > 7)) |
24e45bbe | 5703 | return -EINVAL; |
a4d5effc HMH |
5704 | if (unlikely(tpacpi_is_led_restricted(led))) |
5705 | return -EPERM; | |
24e45bbe HMH |
5706 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5707 | if (rc >= 0) | |
5708 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5709 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5710 | if (rc >= 0) | |
5711 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5712 | (ledstatus != TPACPI_LED_OFF) << led); | |
5713 | break; | |
4fa6811b | 5714 | case TPACPI_LED_NEW: |
24e45bbe | 5715 | /* all others */ |
a4d5effc HMH |
5716 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5717 | return -EINVAL; | |
5718 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5719 | return -EPERM; | |
24e45bbe HMH |
5720 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5721 | led, led_led_arg1[ledstatus])) | |
5722 | rc = -EIO; | |
5723 | break; | |
4fa6811b HMH |
5724 | default: |
5725 | rc = -ENXIO; | |
5726 | } | |
5727 | ||
af116101 HMH |
5728 | if (!rc) |
5729 | tpacpi_led_state_cache[led] = ledstatus; | |
5730 | ||
5731 | return rc; | |
5732 | } | |
5733 | ||
86ec0c2c | 5734 | static int led_sysfs_set(struct led_classdev *led_cdev, |
af116101 HMH |
5735 | enum led_brightness brightness) |
5736 | { | |
5737 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5738 | struct tpacpi_led_classdev, led_classdev); | |
86ec0c2c | 5739 | enum led_status_t new_state; |
af116101 | 5740 | |
75bd3bf2 | 5741 | if (brightness == LED_OFF) |
86ec0c2c | 5742 | new_state = TPACPI_LED_OFF; |
75bd3bf2 | 5743 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) |
86ec0c2c | 5744 | new_state = TPACPI_LED_ON; |
75bd3bf2 | 5745 | else |
86ec0c2c | 5746 | new_state = TPACPI_LED_BLINK; |
75bd3bf2 | 5747 | |
86ec0c2c | 5748 | return led_set_status(data->led, new_state); |
af116101 HMH |
5749 | } |
5750 | ||
5751 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5752 | unsigned long *delay_on, unsigned long *delay_off) | |
5753 | { | |
5754 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5755 | struct tpacpi_led_classdev, led_classdev); | |
5756 | ||
5757 | /* Can we choose the flash rate? */ | |
5758 | if (*delay_on == 0 && *delay_off == 0) { | |
5759 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5760 | *delay_on = 500; /* ms */ | |
5761 | *delay_off = 500; /* ms */ | |
5762 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5763 | return -EINVAL; | |
5764 | ||
86ec0c2c | 5765 | return led_set_status(data->led, TPACPI_LED_BLINK); |
af116101 HMH |
5766 | } |
5767 | ||
5768 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5769 | { | |
5770 | int rc; | |
5771 | ||
5772 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5773 | struct tpacpi_led_classdev, led_classdev); | |
5774 | ||
5775 | rc = led_get_status(data->led); | |
5776 | ||
5777 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5778 | rc = LED_OFF; /* no error handling in led class :( */ | |
5779 | else | |
5780 | rc = LED_FULL; | |
5781 | ||
4fa6811b HMH |
5782 | return rc; |
5783 | } | |
5784 | ||
af116101 HMH |
5785 | static void led_exit(void) |
5786 | { | |
5787 | unsigned int i; | |
5788 | ||
5789 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5790 | if (tpacpi_leds[i].led_classdev.name) | |
5791 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5792 | } | |
5793 | ||
5794 | kfree(tpacpi_leds); | |
af116101 HMH |
5795 | } |
5796 | ||
a4d5effc HMH |
5797 | static int __init tpacpi_init_led(unsigned int led) |
5798 | { | |
5799 | int rc; | |
5800 | ||
5801 | tpacpi_leds[led].led = led; | |
5802 | ||
f21179a4 HMH |
5803 | /* LEDs with no name don't get registered */ |
5804 | if (!tpacpi_led_names[led]) | |
5805 | return 0; | |
5806 | ||
86ec0c2c | 5807 | tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set; |
a4d5effc HMH |
5808 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; |
5809 | if (led_supported == TPACPI_LED_570) | |
5810 | tpacpi_leds[led].led_classdev.brightness_get = | |
5811 | &led_sysfs_get; | |
5812 | ||
5813 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5814 | ||
a4d5effc HMH |
5815 | rc = led_classdev_register(&tpacpi_pdev->dev, |
5816 | &tpacpi_leds[led].led_classdev); | |
5817 | if (rc < 0) | |
5818 | tpacpi_leds[led].led_classdev.name = NULL; | |
5819 | ||
5820 | return rc; | |
5821 | } | |
5822 | ||
f21179a4 HMH |
5823 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5824 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5825 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5826 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5827 | ||
5828 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5829 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5830 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5831 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5832 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5833 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5834 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5835 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5836 | ||
5837 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5838 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5839 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5840 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5841 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5842 | ||
5843 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5844 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5845 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5846 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5847 | ||
5848 | /* (1) - may have excess leds enabled on MSB */ | |
5849 | ||
5850 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5851 | { /* Lenovo */ | |
5852 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5853 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5854 | .quirks = 0x1fffU, | |
5855 | }, | |
5856 | { /* IBM ThinkPads with no EC version string */ | |
5857 | .vendor = PCI_VENDOR_ID_IBM, | |
5858 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5859 | .quirks = 0x00ffU, | |
5860 | }, | |
5861 | { /* IBM ThinkPads with EC version string */ | |
5862 | .vendor = PCI_VENDOR_ID_IBM, | |
5863 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5864 | .quirks = 0x00bfU, | |
5865 | }, | |
5866 | }; | |
5867 | ||
5868 | #undef TPACPI_LEDQ_IBM | |
5869 | #undef TPACPI_LEDQ_LNV | |
5870 | ||
2cbb5c8f HMH |
5871 | static enum led_access_mode __init led_init_detect_mode(void) |
5872 | { | |
5873 | acpi_status status; | |
5874 | ||
5875 | if (tpacpi_is_ibm()) { | |
5876 | /* 570 */ | |
5877 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5878 | if (ACPI_SUCCESS(status)) | |
5879 | return TPACPI_LED_570; | |
5880 | ||
5881 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5882 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5883 | if (ACPI_SUCCESS(status)) | |
5884 | return TPACPI_LED_OLD; | |
5885 | } | |
5886 | ||
5887 | /* most others */ | |
5888 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5889 | if (ACPI_SUCCESS(status)) | |
5890 | return TPACPI_LED_NEW; | |
5891 | ||
5892 | /* R30, R31, and unknown firmwares */ | |
5893 | led_handle = NULL; | |
5894 | return TPACPI_LED_NONE; | |
5895 | } | |
5896 | ||
a5763f22 | 5897 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5898 | { |
af116101 HMH |
5899 | unsigned int i; |
5900 | int rc; | |
f21179a4 | 5901 | unsigned long useful_leds; |
af116101 | 5902 | |
fe08bc4b HMH |
5903 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5904 | ||
2cbb5c8f | 5905 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5906 | |
fcb44e12 AL |
5907 | if (led_supported != TPACPI_LED_NONE) { |
5908 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
5909 | ARRAY_SIZE(led_useful_qtable)); | |
5910 | ||
5911 | if (!useful_leds) { | |
5912 | led_handle = NULL; | |
5913 | led_supported = TPACPI_LED_NONE; | |
5914 | } | |
5915 | } | |
5916 | ||
fe08bc4b HMH |
5917 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5918 | str_supported(led_supported), led_supported); | |
5919 | ||
f21179a4 HMH |
5920 | if (led_supported == TPACPI_LED_NONE) |
5921 | return 1; | |
5922 | ||
af116101 HMH |
5923 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5924 | GFP_KERNEL); | |
5925 | if (!tpacpi_leds) { | |
0978e012 | 5926 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
5927 | return -ENOMEM; |
5928 | } | |
5929 | ||
5930 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
5931 | tpacpi_leds[i].led = -1; |
5932 | ||
f21179a4 HMH |
5933 | if (!tpacpi_is_led_restricted(i) && |
5934 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5935 | rc = tpacpi_init_led(i); |
5936 | if (rc < 0) { | |
5937 | led_exit(); | |
5938 | return rc; | |
5939 | } | |
af116101 HMH |
5940 | } |
5941 | } | |
5942 | ||
a4d5effc | 5943 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
5cac62ac | 5944 | pr_notice("warning: userspace override of important firmware LEDs is enabled\n"); |
a4d5effc | 5945 | #endif |
f21179a4 | 5946 | return 0; |
78f81cc4 BD |
5947 | } |
5948 | ||
4fa6811b HMH |
5949 | #define str_led_status(s) \ |
5950 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5951 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5952 | |
887965e6 | 5953 | static int led_read(struct seq_file *m) |
1da177e4 | 5954 | { |
78f81cc4 | 5955 | if (!led_supported) { |
887965e6 AD |
5956 | seq_printf(m, "status:\t\tnot supported\n"); |
5957 | return 0; | |
78f81cc4 | 5958 | } |
887965e6 | 5959 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5960 | |
efa27145 | 5961 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5962 | /* 570 */ |
5963 | int i, status; | |
5964 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5965 | status = led_get_status(i); |
5966 | if (status < 0) | |
78f81cc4 | 5967 | return -EIO; |
887965e6 | 5968 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5969 | i, str_led_status(status)); |
78f81cc4 BD |
5970 | } |
5971 | } | |
5972 | ||
5cac62ac | 5973 | seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5974 | |
887965e6 | 5975 | return 0; |
1da177e4 LT |
5976 | } |
5977 | ||
78f81cc4 | 5978 | static int led_write(char *buf) |
1da177e4 LT |
5979 | { |
5980 | char *cmd; | |
4fa6811b HMH |
5981 | int led, rc; |
5982 | enum led_status_t s; | |
78f81cc4 BD |
5983 | |
5984 | if (!led_supported) | |
5985 | return -ENODEV; | |
1da177e4 LT |
5986 | |
5987 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 5988 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
5989 | return -EINVAL; |
5990 | ||
edf2d778 AL |
5991 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
5992 | tpacpi_leds[led].led < 0) | |
5993 | return -ENODEV; | |
5994 | ||
78f81cc4 | 5995 | if (strstr(cmd, "off")) { |
4fa6811b | 5996 | s = TPACPI_LED_OFF; |
1da177e4 | 5997 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5998 | s = TPACPI_LED_ON; |
78f81cc4 | 5999 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 6000 | s = TPACPI_LED_BLINK; |
78f81cc4 | 6001 | } else { |
4fa6811b | 6002 | return -EINVAL; |
78f81cc4 | 6003 | } |
4fa6811b HMH |
6004 | |
6005 | rc = led_set_status(led, s); | |
6006 | if (rc < 0) | |
6007 | return rc; | |
78f81cc4 BD |
6008 | } |
6009 | ||
6010 | return 0; | |
6011 | } | |
6012 | ||
a5763f22 HMH |
6013 | static struct ibm_struct led_driver_data = { |
6014 | .name = "led", | |
6015 | .read = led_read, | |
6016 | .write = led_write, | |
af116101 | 6017 | .exit = led_exit, |
a5763f22 HMH |
6018 | }; |
6019 | ||
56b6aeb0 HMH |
6020 | /************************************************************************* |
6021 | * Beep subdriver | |
6022 | */ | |
6023 | ||
e0c7dfe7 | 6024 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 6025 | |
60201732 HMH |
6026 | #define TPACPI_BEEP_Q1 0x0001 |
6027 | ||
6028 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
6029 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
6030 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
6031 | }; | |
6032 | ||
a5763f22 | 6033 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 6034 | { |
60201732 HMH |
6035 | unsigned long quirks; |
6036 | ||
fe08bc4b HMH |
6037 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
6038 | ||
e0c7dfe7 | 6039 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 6040 | |
fe08bc4b HMH |
6041 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
6042 | str_supported(beep_handle != NULL)); | |
6043 | ||
60201732 HMH |
6044 | quirks = tpacpi_check_quirks(beep_quirk_table, |
6045 | ARRAY_SIZE(beep_quirk_table)); | |
6046 | ||
6047 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
6048 | ||
72a979f0 | 6049 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
6050 | } |
6051 | ||
887965e6 | 6052 | static int beep_read(struct seq_file *m) |
78f81cc4 | 6053 | { |
78f81cc4 | 6054 | if (!beep_handle) |
887965e6 | 6055 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 6056 | else { |
887965e6 AD |
6057 | seq_printf(m, "status:\t\tsupported\n"); |
6058 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
6059 | } |
6060 | ||
887965e6 | 6061 | return 0; |
78f81cc4 BD |
6062 | } |
6063 | ||
6064 | static int beep_write(char *buf) | |
6065 | { | |
6066 | char *cmd; | |
6067 | int beep_cmd; | |
6068 | ||
6069 | if (!beep_handle) | |
6070 | return -ENODEV; | |
6071 | ||
6072 | while ((cmd = next_cmd(&buf))) { | |
6073 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
6074 | beep_cmd >= 0 && beep_cmd <= 17) { | |
6075 | /* beep_cmd set */ | |
6076 | } else | |
6077 | return -EINVAL; | |
60201732 HMH |
6078 | if (tp_features.beep_needs_two_args) { |
6079 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
6080 | beep_cmd, 0)) | |
6081 | return -EIO; | |
6082 | } else { | |
6083 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
6084 | beep_cmd)) | |
6085 | return -EIO; | |
6086 | } | |
78f81cc4 BD |
6087 | } |
6088 | ||
6089 | return 0; | |
6090 | } | |
6091 | ||
a5763f22 HMH |
6092 | static struct ibm_struct beep_driver_data = { |
6093 | .name = "beep", | |
6094 | .read = beep_read, | |
6095 | .write = beep_write, | |
6096 | }; | |
6097 | ||
56b6aeb0 HMH |
6098 | /************************************************************************* |
6099 | * Thermal subdriver | |
6100 | */ | |
78f81cc4 | 6101 | |
f74a27d4 HMH |
6102 | enum thermal_access_mode { |
6103 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
6104 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
6105 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
6106 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
6107 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
6108 | }; | |
6109 | ||
6110 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
6111 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
6112 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
6113 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
6114 | |
6115 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
6116 | }; |
6117 | ||
9ebd9e83 | 6118 | |
f74a27d4 HMH |
6119 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
6120 | struct ibm_thermal_sensors_struct { | |
6121 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
6122 | }; | |
6123 | ||
a26f878a | 6124 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 6125 | |
b21a15f6 HMH |
6126 | /* idx is zero-based */ |
6127 | static int thermal_get_sensor(int idx, s32 *value) | |
6128 | { | |
6129 | int t; | |
6130 | s8 tmp; | |
6131 | char tmpi[5]; | |
6132 | ||
6133 | t = TP_EC_THERMAL_TMP0; | |
6134 | ||
6135 | switch (thermal_read_mode) { | |
6136 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
6137 | case TPACPI_THERMAL_TPEC_16: | |
6138 | if (idx >= 8 && idx <= 15) { | |
6139 | t = TP_EC_THERMAL_TMP8; | |
6140 | idx -= 8; | |
6141 | } | |
6142 | /* fallthrough */ | |
6143 | #endif | |
6144 | case TPACPI_THERMAL_TPEC_8: | |
6145 | if (idx <= 7) { | |
6146 | if (!acpi_ec_read(t + idx, &tmp)) | |
6147 | return -EIO; | |
6148 | *value = tmp * 1000; | |
6149 | return 0; | |
6150 | } | |
6151 | break; | |
6152 | ||
6153 | case TPACPI_THERMAL_ACPI_UPDT: | |
6154 | if (idx <= 7) { | |
6155 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6156 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
6157 | return -EIO; | |
6158 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6159 | return -EIO; | |
6160 | *value = (t - 2732) * 100; | |
6161 | return 0; | |
6162 | } | |
6163 | break; | |
6164 | ||
6165 | case TPACPI_THERMAL_ACPI_TMP07: | |
6166 | if (idx <= 7) { | |
6167 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6168 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6169 | return -EIO; | |
6170 | if (t > 127 || t < -127) | |
6171 | t = TP_EC_THERMAL_TMP_NA; | |
6172 | *value = t * 1000; | |
6173 | return 0; | |
6174 | } | |
6175 | break; | |
6176 | ||
6177 | case TPACPI_THERMAL_NONE: | |
6178 | default: | |
6179 | return -ENOSYS; | |
6180 | } | |
6181 | ||
6182 | return -EINVAL; | |
6183 | } | |
6184 | ||
6185 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
6186 | { | |
6187 | int res, i; | |
6188 | int n; | |
6189 | ||
6190 | n = 8; | |
6191 | i = 0; | |
6192 | ||
6193 | if (!s) | |
6194 | return -EINVAL; | |
6195 | ||
6196 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
6197 | n = 16; | |
6198 | ||
35ff8b9f | 6199 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
6200 | res = thermal_get_sensor(i, &s->temp[i]); |
6201 | if (res) | |
6202 | return res; | |
6203 | } | |
6204 | ||
6205 | return n; | |
6206 | } | |
f74a27d4 | 6207 | |
9ebd9e83 HMH |
6208 | static void thermal_dump_all_sensors(void) |
6209 | { | |
6210 | int n, i; | |
6211 | struct ibm_thermal_sensors_struct t; | |
6212 | ||
6213 | n = thermal_get_sensors(&t); | |
6214 | if (n <= 0) | |
6215 | return; | |
6216 | ||
0978e012 | 6217 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
6218 | |
6219 | for (i = 0; i < n; i++) { | |
6220 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 6221 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 6222 | else |
0978e012 | 6223 | pr_cont(" N/A"); |
9ebd9e83 HMH |
6224 | } |
6225 | ||
0978e012 | 6226 | pr_cont("\n"); |
9ebd9e83 HMH |
6227 | } |
6228 | ||
2c37aa4e HMH |
6229 | /* sysfs temp##_input -------------------------------------------------- */ |
6230 | ||
6231 | static ssize_t thermal_temp_input_show(struct device *dev, | |
6232 | struct device_attribute *attr, | |
6233 | char *buf) | |
6234 | { | |
6235 | struct sensor_device_attribute *sensor_attr = | |
6236 | to_sensor_dev_attr(attr); | |
6237 | int idx = sensor_attr->index; | |
6238 | s32 value; | |
6239 | int res; | |
6240 | ||
6241 | res = thermal_get_sensor(idx, &value); | |
6242 | if (res) | |
6243 | return res; | |
9ebd9e83 | 6244 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
6245 | return -ENXIO; |
6246 | ||
6247 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
6248 | } | |
6249 | ||
6250 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
6251 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
6252 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
6253 | |
6254 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
6255 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
6256 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
6257 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
6258 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
6259 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
6260 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
6261 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
6262 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
6263 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
6264 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
6265 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
6266 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
6267 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
6268 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
6269 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
6270 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
6271 | }; | |
6272 | ||
6273 | #define THERMAL_ATTRS(X) \ | |
6274 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
6275 | ||
6276 | static struct attribute *thermal_temp_input_attr[] = { | |
6277 | THERMAL_ATTRS(8), | |
6278 | THERMAL_ATTRS(9), | |
6279 | THERMAL_ATTRS(10), | |
6280 | THERMAL_ATTRS(11), | |
6281 | THERMAL_ATTRS(12), | |
6282 | THERMAL_ATTRS(13), | |
6283 | THERMAL_ATTRS(14), | |
6284 | THERMAL_ATTRS(15), | |
6285 | THERMAL_ATTRS(0), | |
6286 | THERMAL_ATTRS(1), | |
6287 | THERMAL_ATTRS(2), | |
6288 | THERMAL_ATTRS(3), | |
6289 | THERMAL_ATTRS(4), | |
6290 | THERMAL_ATTRS(5), | |
6291 | THERMAL_ATTRS(6), | |
6292 | THERMAL_ATTRS(7), | |
6293 | NULL | |
6294 | }; | |
6295 | ||
6296 | static const struct attribute_group thermal_temp_input16_group = { | |
6297 | .attrs = thermal_temp_input_attr | |
6298 | }; | |
6299 | ||
6300 | static const struct attribute_group thermal_temp_input8_group = { | |
6301 | .attrs = &thermal_temp_input_attr[8] | |
6302 | }; | |
6303 | ||
6304 | #undef THERMAL_SENSOR_ATTR_TEMP | |
6305 | #undef THERMAL_ATTRS | |
6306 | ||
6307 | /* --------------------------------------------------------------------- */ | |
6308 | ||
a5763f22 | 6309 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6310 | { |
60eb0b35 HMH |
6311 | u8 t, ta1, ta2; |
6312 | int i; | |
5fba344c | 6313 | int acpi_tmp7; |
2c37aa4e | 6314 | int res; |
5fba344c | 6315 | |
fe08bc4b HMH |
6316 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
6317 | ||
5fba344c | 6318 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 6319 | |
3d6f99ca | 6320 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
6321 | /* |
6322 | * Direct EC access mode: sensors at registers | |
6323 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
6324 | * non-implemented, thermal sensors return 0x80 when | |
6325 | * not available | |
6326 | */ | |
78f81cc4 | 6327 | |
60eb0b35 HMH |
6328 | ta1 = ta2 = 0; |
6329 | for (i = 0; i < 8; i++) { | |
04cc862c | 6330 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
6331 | ta1 |= t; |
6332 | } else { | |
6333 | ta1 = 0; | |
6334 | break; | |
6335 | } | |
04cc862c | 6336 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
6337 | ta2 |= t; |
6338 | } else { | |
6339 | ta1 = 0; | |
6340 | break; | |
6341 | } | |
6342 | } | |
6343 | if (ta1 == 0) { | |
6344 | /* This is sheer paranoia, but we handle it anyway */ | |
6345 | if (acpi_tmp7) { | |
5cac62ac | 6346 | pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n"); |
efa27145 | 6347 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6348 | } else { |
5cac62ac | 6349 | pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n"); |
efa27145 | 6350 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6351 | } |
6352 | } else { | |
6353 | thermal_read_mode = | |
6354 | (ta2 != 0) ? | |
efa27145 | 6355 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
6356 | } |
6357 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6358 | if (tpacpi_is_ibm() && |
6359 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6360 | /* 600e/x, 770e, 770x */ |
efa27145 | 6361 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6362 | } else { |
e28393c0 | 6363 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6364 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6365 | } |
6366 | } else { | |
6367 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6368 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6369 | } |
78f81cc4 | 6370 | |
fe08bc4b HMH |
6371 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6372 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6373 | thermal_read_mode); | |
6374 | ||
35ff8b9f | 6375 | switch (thermal_read_mode) { |
2c37aa4e | 6376 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6377 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6378 | &thermal_temp_input16_group); |
6379 | if (res) | |
6380 | return res; | |
6381 | break; | |
6382 | case TPACPI_THERMAL_TPEC_8: | |
6383 | case TPACPI_THERMAL_ACPI_TMP07: | |
6384 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6385 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6386 | &thermal_temp_input8_group); |
6387 | if (res) | |
6388 | return res; | |
6389 | break; | |
6390 | case TPACPI_THERMAL_NONE: | |
6391 | default: | |
6392 | return 1; | |
6393 | } | |
6394 | ||
6395 | return 0; | |
6396 | } | |
6397 | ||
6398 | static void thermal_exit(void) | |
6399 | { | |
35ff8b9f | 6400 | switch (thermal_read_mode) { |
2c37aa4e | 6401 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6402 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6403 | &thermal_temp_input16_group); |
6404 | break; | |
6405 | case TPACPI_THERMAL_TPEC_8: | |
6406 | case TPACPI_THERMAL_ACPI_TMP07: | |
6407 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6408 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 6409 | &thermal_temp_input8_group); |
2c37aa4e HMH |
6410 | break; |
6411 | case TPACPI_THERMAL_NONE: | |
6412 | default: | |
6413 | break; | |
6414 | } | |
78f81cc4 BD |
6415 | } |
6416 | ||
887965e6 | 6417 | static int thermal_read(struct seq_file *m) |
a26f878a | 6418 | { |
a26f878a HMH |
6419 | int n, i; |
6420 | struct ibm_thermal_sensors_struct t; | |
6421 | ||
6422 | n = thermal_get_sensors(&t); | |
6423 | if (unlikely(n < 0)) | |
6424 | return n; | |
6425 | ||
887965e6 | 6426 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6427 | |
6428 | if (n > 0) { | |
6429 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6430 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6431 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6432 | } else |
887965e6 | 6433 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6434 | |
887965e6 | 6435 | return 0; |
78f81cc4 BD |
6436 | } |
6437 | ||
a5763f22 HMH |
6438 | static struct ibm_struct thermal_driver_data = { |
6439 | .name = "thermal", | |
6440 | .read = thermal_read, | |
2c37aa4e | 6441 | .exit = thermal_exit, |
a5763f22 HMH |
6442 | }; |
6443 | ||
56b6aeb0 HMH |
6444 | /************************************************************************* |
6445 | * Backlight/brightness subdriver | |
6446 | */ | |
6447 | ||
f74a27d4 HMH |
6448 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6449 | ||
0e501834 HMH |
6450 | /* |
6451 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6452 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6453 | * | |
6454 | * EC HBRV (0x31) has the following layout | |
6455 | * Bit 7: unknown function | |
6456 | * Bit 6: unknown function | |
6457 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6458 | * Bit 4: must be set to zero to avoid problems | |
6459 | * Bit 3-0: backlight brightness level | |
6460 | * | |
6461 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6462 | * |
6463 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6464 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6465 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6466 | */ |
6467 | ||
e11aecf1 HMH |
6468 | enum { |
6469 | TP_EC_BACKLIGHT = 0x31, | |
6470 | ||
6471 | /* TP_EC_BACKLIGHT bitmasks */ | |
6472 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6473 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6474 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6475 | }; | |
6476 | ||
0e501834 HMH |
6477 | enum tpacpi_brightness_access_mode { |
6478 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6479 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6480 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6481 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6482 | TPACPI_BRGHT_MODE_MAX | |
6483 | }; | |
6484 | ||
94954cc6 | 6485 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6486 | |
6487 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6488 | TPACPI_BRGHT_MODE_MAX; | |
6489 | ||
f74a27d4 HMH |
6490 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6491 | ||
b21a15f6 | 6492 | static struct mutex brightness_mutex; |
56b6aeb0 | 6493 | |
0e501834 HMH |
6494 | /* NVRAM brightness access, |
6495 | * call with brightness_mutex held! */ | |
6496 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6497 | { |
0e501834 | 6498 | u8 lnvram; |
b21a15f6 | 6499 | |
0e501834 HMH |
6500 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6501 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6502 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6503 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6504 | |
6505 | return lnvram; | |
6506 | } | |
6507 | ||
6508 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6509 | { | |
6510 | u8 lec = 0; | |
6511 | u8 b_nvram; | |
6512 | ||
6513 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6514 | return; | |
6515 | ||
6516 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6517 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6518 | ||
6519 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6520 | return; | |
6521 | ||
6522 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6523 | goto unlock; | |
6524 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6525 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6526 | ||
6527 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6528 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6529 | /* NVRAM needs update */ | |
6530 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6531 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6532 | b_nvram |= lec; | |
6533 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6534 | dbg_printk(TPACPI_DBG_BRGHT, | |
6535 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6536 | (unsigned int) lec, (unsigned int) b_nvram); | |
6537 | } else | |
6538 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6539 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6540 | (unsigned int) lec, (unsigned int) b_nvram); | |
6541 | ||
6542 | unlock: | |
6543 | mutex_unlock(&brightness_mutex); | |
6544 | } | |
6545 | ||
6546 | ||
6547 | /* call with brightness_mutex held! */ | |
6548 | static int tpacpi_brightness_get_raw(int *status) | |
6549 | { | |
6550 | u8 lec = 0; | |
6551 | ||
6552 | switch (brightness_mode) { | |
6553 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6554 | *status = tpacpi_brightness_nvram_get(); | |
6555 | return 0; | |
6556 | case TPACPI_BRGHT_MODE_EC: | |
6557 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6558 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6559 | return -EIO; |
0e501834 HMH |
6560 | *status = lec; |
6561 | return 0; | |
6562 | default: | |
6563 | return -ENXIO; | |
b21a15f6 | 6564 | } |
0e501834 HMH |
6565 | } |
6566 | ||
6567 | /* call with brightness_mutex held! */ | |
6568 | /* do NOT call with illegal backlight level value */ | |
6569 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6570 | { | |
6571 | u8 lec = 0; | |
6572 | ||
6573 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6574 | return -EIO; | |
6575 | ||
6576 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6577 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6578 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6579 | return -EIO; | |
6580 | ||
6581 | return 0; | |
6582 | } | |
6583 | ||
6584 | /* call with brightness_mutex held! */ | |
6585 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6586 | { | |
6587 | int cmos_cmd, inc; | |
6588 | unsigned int current_value, i; | |
6589 | ||
6590 | current_value = tpacpi_brightness_nvram_get(); | |
6591 | ||
6592 | if (value == current_value) | |
6593 | return 0; | |
6594 | ||
6595 | cmos_cmd = (value > current_value) ? | |
6596 | TP_CMOS_BRIGHTNESS_UP : | |
6597 | TP_CMOS_BRIGHTNESS_DOWN; | |
6598 | inc = (value > current_value) ? 1 : -1; | |
6599 | ||
6600 | for (i = current_value; i != value; i += inc) | |
6601 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6602 | return -EIO; | |
b21a15f6 | 6603 | |
e11aecf1 | 6604 | return 0; |
b21a15f6 HMH |
6605 | } |
6606 | ||
6607 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6608 | static int brightness_set(unsigned int value) |
b21a15f6 | 6609 | { |
0e501834 | 6610 | int res; |
b21a15f6 | 6611 | |
bd3c7b9e | 6612 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6613 | return -EINVAL; |
6614 | ||
0e501834 HMH |
6615 | vdbg_printk(TPACPI_DBG_BRGHT, |
6616 | "set backlight level to %d\n", value); | |
6617 | ||
7646ea88 | 6618 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6619 | if (res < 0) |
6620 | return res; | |
6621 | ||
0e501834 HMH |
6622 | switch (brightness_mode) { |
6623 | case TPACPI_BRGHT_MODE_EC: | |
6624 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6625 | res = tpacpi_brightness_set_ec(value); | |
6626 | break; | |
6627 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6628 | res = tpacpi_brightness_set_ucmsstep(value); | |
6629 | break; | |
6630 | default: | |
6631 | res = -ENXIO; | |
b21a15f6 HMH |
6632 | } |
6633 | ||
b21a15f6 HMH |
6634 | mutex_unlock(&brightness_mutex); |
6635 | return res; | |
6636 | } | |
6637 | ||
6638 | /* sysfs backlight class ----------------------------------------------- */ | |
6639 | ||
6640 | static int brightness_update_status(struct backlight_device *bd) | |
6641 | { | |
0e501834 | 6642 | unsigned int level = |
b21a15f6 HMH |
6643 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6644 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6645 | bd->props.brightness : 0; |
6646 | ||
6647 | dbg_printk(TPACPI_DBG_BRGHT, | |
6648 | "backlight: attempt to set level to %d\n", | |
6649 | level); | |
6650 | ||
6651 | /* it is the backlight class's job (caller) to handle | |
6652 | * EINTR and other errors properly */ | |
6653 | return brightness_set(level); | |
b21a15f6 HMH |
6654 | } |
6655 | ||
e11aecf1 | 6656 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6657 | { |
e11aecf1 | 6658 | int status, res; |
a3f104c0 | 6659 | |
0e501834 | 6660 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6661 | if (res < 0) |
0e501834 HMH |
6662 | return 0; |
6663 | ||
6664 | res = tpacpi_brightness_get_raw(&status); | |
6665 | ||
6666 | mutex_unlock(&brightness_mutex); | |
6667 | ||
6668 | if (res < 0) | |
6669 | return 0; | |
e11e211a | 6670 | |
e11aecf1 | 6671 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6672 | } |
6673 | ||
347a2686 HMH |
6674 | static void tpacpi_brightness_notify_change(void) |
6675 | { | |
6676 | backlight_force_update(ibm_backlight_device, | |
6677 | BACKLIGHT_UPDATE_HOTKEY); | |
6678 | } | |
6679 | ||
acc2472e | 6680 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6681 | .get_brightness = brightness_get, |
6682 | .update_status = brightness_update_status, | |
56b6aeb0 | 6683 | }; |
e11e211a | 6684 | |
b21a15f6 | 6685 | /* --------------------------------------------------------------------- */ |
e11e211a | 6686 | |
122f2672 HMH |
6687 | /* |
6688 | * Call _BCL method of video device. On some ThinkPads this will | |
6689 | * switch the firmware to the ACPI brightness control mode. | |
6690 | */ | |
6691 | ||
77775838 HMH |
6692 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6693 | { | |
6694 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6695 | union acpi_object *obj; | |
46445b6b | 6696 | struct acpi_device *device, *child; |
77775838 HMH |
6697 | int rc; |
6698 | ||
46445b6b AL |
6699 | if (acpi_bus_get_device(handle, &device)) |
6700 | return 0; | |
6701 | ||
6702 | rc = 0; | |
6703 | list_for_each_entry(child, &device->children, node) { | |
6704 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6705 | NULL, &buffer); | |
6706 | if (ACPI_FAILURE(status)) | |
6707 | continue; | |
6708 | ||
77775838 HMH |
6709 | obj = (union acpi_object *)buffer.pointer; |
6710 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6711 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6712 | TPACPI_MAIL); |
77775838 HMH |
6713 | rc = 0; |
6714 | } else { | |
6715 | rc = obj->package.count; | |
6716 | } | |
46445b6b | 6717 | break; |
77775838 HMH |
6718 | } |
6719 | ||
6720 | kfree(buffer.pointer); | |
6721 | return rc; | |
6722 | } | |
6723 | ||
77775838 HMH |
6724 | |
6725 | /* | |
6726 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6727 | */ | |
6728 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6729 | { | |
122f2672 | 6730 | acpi_handle video_device; |
77775838 | 6731 | int bcl_levels = 0; |
77775838 | 6732 | |
46445b6b | 6733 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6734 | if (video_device) |
6735 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6736 | |
122f2672 | 6737 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6738 | |
122f2672 | 6739 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6740 | } |
6741 | ||
59fe4fe3 HMH |
6742 | /* |
6743 | * These are only useful for models that have only one possibility | |
6744 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6745 | * these quirks. | |
6746 | */ | |
6747 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6748 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6749 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6750 | ||
6751 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6752 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6753 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6754 | ||
6da25bf5 | 6755 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6756 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6757 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6758 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6759 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6760 | ||
6da25bf5 | 6761 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6762 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6763 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6764 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6765 | |
6766 | /* Models with Intel GMA900 */ | |
6767 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6768 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6769 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6770 | }; | |
6771 | ||
77775838 HMH |
6772 | /* |
6773 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6774 | * and bright_maxlvl. | |
6775 | */ | |
6776 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6777 | { | |
6778 | unsigned int b; | |
6779 | ||
6780 | vdbg_printk(TPACPI_DBG_INIT, | |
6781 | "detecting firmware brightness interface capabilities\n"); | |
6782 | ||
6783 | /* we could run a quirks check here (same table used by | |
6784 | * brightness_init) if needed */ | |
6785 | ||
6786 | /* | |
6787 | * We always attempt to detect acpi support, so as to switch | |
6788 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6789 | * going to publish a backlight interface | |
6790 | */ | |
6791 | b = tpacpi_check_std_acpi_brightness_support(); | |
6792 | switch (b) { | |
6793 | case 16: | |
6794 | bright_maxlvl = 15; | |
77775838 HMH |
6795 | break; |
6796 | case 8: | |
6797 | case 0: | |
6798 | bright_maxlvl = 7; | |
77775838 HMH |
6799 | break; |
6800 | default: | |
77775838 HMH |
6801 | tp_features.bright_unkfw = 1; |
6802 | bright_maxlvl = b - 1; | |
6803 | } | |
15c75626 | 6804 | pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); |
77775838 HMH |
6805 | } |
6806 | ||
a5763f22 | 6807 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6808 | { |
a19a6ee6 | 6809 | struct backlight_properties props; |
56b6aeb0 | 6810 | int b; |
59fe4fe3 | 6811 | unsigned long quirks; |
56b6aeb0 | 6812 | |
fe08bc4b HMH |
6813 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6814 | ||
f432255e HMH |
6815 | mutex_init(&brightness_mutex); |
6816 | ||
59fe4fe3 HMH |
6817 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6818 | ARRAY_SIZE(brightness_quirk_table)); | |
6819 | ||
77775838 HMH |
6820 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6821 | ||
6822 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6823 | if (tp_features.bright_unkfw) | |
6824 | return 1; | |
2dba1b5d | 6825 | |
b5972796 | 6826 | if (!brightness_enable) { |
0e501834 | 6827 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 6828 | "brightness support disabled by module parameter\n"); |
b5972796 HMH |
6829 | return 1; |
6830 | } | |
6831 | ||
b33c6ce5 | 6832 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 6833 | if (brightness_enable > 1) { |
5cac62ac | 6834 | pr_info("Standard ACPI backlight interface available, not loading native one\n"); |
217f0963 HMH |
6835 | return 1; |
6836 | } else if (brightness_enable == 1) { | |
5cac62ac | 6837 | pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6838 | return 1; |
6839 | } | |
6840 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
5cac62ac | 6841 | pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n"); |
217f0963 HMH |
6842 | } |
6843 | ||
0e501834 HMH |
6844 | /* |
6845 | * Check for module parameter bogosity, note that we | |
6846 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6847 | * able to detect "unspecified" | |
6848 | */ | |
6849 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6850 | return -EINVAL; | |
24d3b774 | 6851 | |
0e501834 HMH |
6852 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6853 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6854 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6855 | if (quirks & TPACPI_BRGHT_Q_EC) |
6856 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6857 | else | |
0e501834 | 6858 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6859 | |
0e501834 | 6860 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6861 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6862 | brightness_mode); |
6863 | } | |
24d3b774 | 6864 | |
d7880f10 | 6865 | /* Safety */ |
e28393c0 | 6866 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6867 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6868 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6869 | return -EINVAL; | |
6870 | ||
0e501834 | 6871 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6872 | return 1; |
56b6aeb0 | 6873 | |
a19a6ee6 | 6874 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6875 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6876 | props.max_brightness = bright_maxlvl; |
6877 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6878 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6879 | NULL, NULL, | |
6880 | &ibm_backlight_data, | |
6881 | &props); | |
56b6aeb0 | 6882 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6883 | int rc = PTR_ERR(ibm_backlight_device); |
6884 | ibm_backlight_device = NULL; | |
0978e012 | 6885 | pr_err("Could not register backlight device\n"); |
435c47e2 | 6886 | return rc; |
56b6aeb0 | 6887 | } |
0e501834 HMH |
6888 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6889 | "brightness is supported\n"); | |
56b6aeb0 | 6890 | |
59fe4fe3 | 6891 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
5cac62ac AS |
6892 | pr_notice("brightness: will use unverified default: brightness_mode=%d\n", |
6893 | brightness_mode); | |
6894 | pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n", | |
6895 | TPACPI_MAIL); | |
59fe4fe3 HMH |
6896 | } |
6897 | ||
7d9745cf HMH |
6898 | /* Added by mistake in early 2007. Probably useless, but it could |
6899 | * be working around some unknown firmware problem where the value | |
6900 | * read at startup doesn't match the real hardware state... so leave | |
6901 | * it in place just in case */ | |
56b6aeb0 HMH |
6902 | backlight_update_status(ibm_backlight_device); |
6903 | ||
347a2686 | 6904 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 6905 | "brightness: registering brightness hotkeys as change notification\n"); |
347a2686 HMH |
6906 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
6907 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6908 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6909 | return 0; |
6910 | } | |
6911 | ||
fd3c3a42 | 6912 | static void brightness_suspend(void) |
0e501834 HMH |
6913 | { |
6914 | tpacpi_brightness_checkpoint_nvram(); | |
6915 | } | |
6916 | ||
6917 | static void brightness_shutdown(void) | |
6918 | { | |
6919 | tpacpi_brightness_checkpoint_nvram(); | |
6920 | } | |
6921 | ||
56b6aeb0 HMH |
6922 | static void brightness_exit(void) |
6923 | { | |
6924 | if (ibm_backlight_device) { | |
0e501834 | 6925 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6926 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6927 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6928 | } |
0e501834 HMH |
6929 | |
6930 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6931 | } |
6932 | ||
887965e6 | 6933 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6934 | { |
56b6aeb0 HMH |
6935 | int level; |
6936 | ||
35ff8b9f HMH |
6937 | level = brightness_get(NULL); |
6938 | if (level < 0) { | |
887965e6 | 6939 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6940 | } else { |
887965e6 AD |
6941 | seq_printf(m, "level:\t\t%d\n", level); |
6942 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
6943 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
6944 | bright_maxlvl); | |
56b6aeb0 HMH |
6945 | } |
6946 | ||
887965e6 | 6947 | return 0; |
56b6aeb0 HMH |
6948 | } |
6949 | ||
8acb0250 HM |
6950 | static int brightness_write(char *buf) |
6951 | { | |
6952 | int level; | |
4273af8d | 6953 | int rc; |
1da177e4 | 6954 | char *cmd; |
1da177e4 | 6955 | |
4273af8d HMH |
6956 | level = brightness_get(NULL); |
6957 | if (level < 0) | |
6958 | return level; | |
78f81cc4 | 6959 | |
4273af8d | 6960 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6961 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 6962 | if (level < bright_maxlvl) |
4273af8d | 6963 | level++; |
78f81cc4 | 6964 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6965 | if (level > 0) |
6966 | level--; | |
6967 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 6968 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 6969 | /* new level set */ |
78f81cc4 BD |
6970 | } else |
6971 | return -EINVAL; | |
78f81cc4 BD |
6972 | } |
6973 | ||
0e501834 HMH |
6974 | tpacpi_disclose_usertask("procfs brightness", |
6975 | "set level to %d\n", level); | |
6976 | ||
4273af8d HMH |
6977 | /* |
6978 | * Now we know what the final level should be, so we try to set it. | |
6979 | * Doing it this way makes the syscall restartable in case of EINTR | |
6980 | */ | |
6981 | rc = brightness_set(level); | |
347a2686 HMH |
6982 | if (!rc && ibm_backlight_device) |
6983 | backlight_force_update(ibm_backlight_device, | |
6984 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 6985 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
6986 | } |
6987 | ||
a5763f22 HMH |
6988 | static struct ibm_struct brightness_driver_data = { |
6989 | .name = "brightness", | |
6990 | .read = brightness_read, | |
6991 | .write = brightness_write, | |
6992 | .exit = brightness_exit, | |
0e501834 HMH |
6993 | .suspend = brightness_suspend, |
6994 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6995 | }; |
6996 | ||
56b6aeb0 HMH |
6997 | /************************************************************************* |
6998 | * Volume subdriver | |
6999 | */ | |
fb87a811 | 7000 | |
329e4e18 HMH |
7001 | /* |
7002 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
7003 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
7004 | * | |
7005 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
7006 | * ThinkPads only implement the MUTE gate. | |
7007 | * | |
7008 | * EC register 0x30 | |
7009 | * Bit 6: MUTE (1 mutes sound) | |
7010 | * Bit 3-0: Volume | |
7011 | * Other bits should be zero as far as we know. | |
7012 | * | |
7013 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
7014 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
7015 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
7016 | * and we leave them unchanged. | |
9a417ec0 AL |
7017 | * |
7018 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
7019 | * in response to user input. Unfortunately, this rarely works well. | |
7020 | * The laptop changes the state of its internal MUTE gate and, on some | |
7021 | * models, sends KEY_MUTE, causing any user code that responds to the | |
7022 | * mute button to get confused. The hardware MUTE gate is also | |
7023 | * unnecessary, since user code can handle the mute button without | |
7024 | * kernel or EC help. | |
7025 | * | |
7026 | * To avoid confusing userspace, we simply disable all EC-based mute | |
7027 | * and volume controls when possible. | |
329e4e18 HMH |
7028 | */ |
7029 | ||
ff850c33 HMH |
7030 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
7031 | ||
0d204c34 HMH |
7032 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
7033 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
7034 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
7035 | ||
cab66613 TI |
7036 | #if SNDRV_CARDS <= 32 |
7037 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
7038 | #else | |
7039 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
7040 | #endif | |
7041 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 7042 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 7043 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
7044 | |
7045 | struct tpacpi_alsa_data { | |
7046 | struct snd_card *card; | |
7047 | struct snd_ctl_elem_id *ctl_mute_id; | |
7048 | struct snd_ctl_elem_id *ctl_vol_id; | |
7049 | }; | |
7050 | ||
7051 | static struct snd_card *alsa_card; | |
7052 | ||
329e4e18 HMH |
7053 | enum { |
7054 | TP_EC_AUDIO = 0x30, | |
7055 | ||
7056 | /* TP_EC_AUDIO bits */ | |
7057 | TP_EC_AUDIO_MUTESW = 6, | |
7058 | ||
7059 | /* TP_EC_AUDIO bitmasks */ | |
7060 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
7061 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
7062 | ||
7063 | /* Maximum volume */ | |
7064 | TP_EC_VOLUME_MAX = 14, | |
7065 | }; | |
7066 | ||
7067 | enum tpacpi_volume_access_mode { | |
7068 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
7069 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
7070 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
7071 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
7072 | TPACPI_VOL_MODE_MAX | |
7073 | }; | |
7074 | ||
a112ceee HMH |
7075 | enum tpacpi_volume_capabilities { |
7076 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
7077 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
7078 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
7079 | TPACPI_VOL_CAP_MAX | |
7080 | }; | |
7081 | ||
9a417ec0 AL |
7082 | enum tpacpi_mute_btn_mode { |
7083 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
7084 | /* We don't know what mode 1 is. */ | |
7085 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
7086 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
7087 | }; | |
7088 | ||
329e4e18 HMH |
7089 | static enum tpacpi_volume_access_mode volume_mode = |
7090 | TPACPI_VOL_MODE_MAX; | |
7091 | ||
a112ceee | 7092 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 7093 | static bool volume_control_allowed; |
9a417ec0 AL |
7094 | static bool software_mute_requested = true; |
7095 | static bool software_mute_active; | |
7096 | static int software_mute_orig_mode; | |
f74a27d4 | 7097 | |
329e4e18 HMH |
7098 | /* |
7099 | * Used to syncronize writers to TP_EC_AUDIO and | |
7100 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
7101 | */ | |
7102 | static struct mutex volume_mutex; | |
7103 | ||
7104 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 7105 | { |
329e4e18 HMH |
7106 | u8 lec = 0; |
7107 | u8 b_nvram; | |
a112ceee | 7108 | u8 ec_mask; |
329e4e18 HMH |
7109 | |
7110 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
7111 | return; | |
c7ac6291 HMH |
7112 | if (!volume_control_allowed) |
7113 | return; | |
9a417ec0 AL |
7114 | if (software_mute_active) |
7115 | return; | |
329e4e18 HMH |
7116 | |
7117 | vdbg_printk(TPACPI_DBG_MIXER, | |
7118 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 7119 | |
a112ceee HMH |
7120 | if (tp_features.mixer_no_level_control) |
7121 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
7122 | else | |
7123 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
7124 | ||
329e4e18 HMH |
7125 | if (mutex_lock_killable(&volume_mutex) < 0) |
7126 | return; | |
7127 | ||
7128 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
7129 | goto unlock; | |
7130 | lec &= ec_mask; | |
7131 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
7132 | ||
7133 | if (lec != (b_nvram & ec_mask)) { | |
7134 | /* NVRAM needs update */ | |
7135 | b_nvram &= ~ec_mask; | |
7136 | b_nvram |= lec; | |
7137 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
7138 | dbg_printk(TPACPI_DBG_MIXER, | |
7139 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
7140 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 7141 | } else { |
329e4e18 HMH |
7142 | vdbg_printk(TPACPI_DBG_MIXER, |
7143 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
7144 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
7145 | } |
7146 | ||
329e4e18 HMH |
7147 | unlock: |
7148 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
7149 | } |
7150 | ||
329e4e18 | 7151 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 7152 | { |
329e4e18 | 7153 | u8 s; |
78f81cc4 | 7154 | |
329e4e18 HMH |
7155 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
7156 | return -EIO; | |
78f81cc4 | 7157 | |
329e4e18 | 7158 | *status = s; |
1da177e4 | 7159 | |
329e4e18 | 7160 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 7161 | |
329e4e18 HMH |
7162 | return 0; |
7163 | } | |
78f81cc4 | 7164 | |
329e4e18 HMH |
7165 | static int volume_get_status(u8 *status) |
7166 | { | |
7167 | return volume_get_status_ec(status); | |
7168 | } | |
78f81cc4 | 7169 | |
329e4e18 HMH |
7170 | static int volume_set_status_ec(const u8 status) |
7171 | { | |
7172 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
7173 | return -EIO; | |
78f81cc4 | 7174 | |
329e4e18 HMH |
7175 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
7176 | ||
9a417ec0 AL |
7177 | /* |
7178 | * On X200s, and possibly on others, it can take a while for | |
7179 | * reads to become correct. | |
7180 | */ | |
7181 | msleep(1); | |
7182 | ||
329e4e18 HMH |
7183 | return 0; |
7184 | } | |
7185 | ||
7186 | static int volume_set_status(const u8 status) | |
7187 | { | |
7188 | return volume_set_status_ec(status); | |
7189 | } | |
7190 | ||
88cc8377 HMH |
7191 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7192 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
7193 | { |
7194 | int rc; | |
7195 | u8 s, n; | |
7196 | ||
7197 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7198 | return -EINTR; | |
7199 | ||
7200 | rc = volume_get_status_ec(&s); | |
7201 | if (rc) | |
7202 | goto unlock; | |
7203 | ||
7204 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
7205 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
7206 | ||
88cc8377 | 7207 | if (n != s) { |
329e4e18 | 7208 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7209 | if (!rc) |
7210 | rc = 1; | |
7211 | } | |
329e4e18 HMH |
7212 | |
7213 | unlock: | |
7214 | mutex_unlock(&volume_mutex); | |
7215 | return rc; | |
7216 | } | |
7217 | ||
88cc8377 HMH |
7218 | static int volume_alsa_set_mute(const bool mute) |
7219 | { | |
7220 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
7221 | (mute) ? "" : "un"); | |
7222 | return __volume_set_mute_ec(mute); | |
7223 | } | |
7224 | ||
329e4e18 HMH |
7225 | static int volume_set_mute(const bool mute) |
7226 | { | |
88cc8377 HMH |
7227 | int rc; |
7228 | ||
329e4e18 HMH |
7229 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
7230 | (mute) ? "" : "un"); | |
88cc8377 HMH |
7231 | |
7232 | rc = __volume_set_mute_ec(mute); | |
7233 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
7234 | } |
7235 | ||
88cc8377 HMH |
7236 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7237 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
7238 | { |
7239 | int rc; | |
7240 | u8 s, n; | |
7241 | ||
7242 | if (vol > TP_EC_VOLUME_MAX) | |
7243 | return -EINVAL; | |
7244 | ||
7245 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7246 | return -EINTR; | |
7247 | ||
7248 | rc = volume_get_status_ec(&s); | |
7249 | if (rc) | |
7250 | goto unlock; | |
7251 | ||
7252 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
7253 | ||
88cc8377 | 7254 | if (n != s) { |
329e4e18 | 7255 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7256 | if (!rc) |
7257 | rc = 1; | |
7258 | } | |
329e4e18 HMH |
7259 | |
7260 | unlock: | |
7261 | mutex_unlock(&volume_mutex); | |
7262 | return rc; | |
7263 | } | |
7264 | ||
9a417ec0 AL |
7265 | static int volume_set_software_mute(bool startup) |
7266 | { | |
7267 | int result; | |
7268 | ||
7269 | if (!tpacpi_is_lenovo()) | |
7270 | return -ENODEV; | |
7271 | ||
7272 | if (startup) { | |
7273 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
7274 | "HAUM", "qd")) | |
7275 | return -EIO; | |
7276 | ||
7277 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7278 | "Initial HAUM setting was %d\n", | |
7279 | software_mute_orig_mode); | |
7280 | } | |
7281 | ||
7282 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
7283 | (int)TP_EC_MUTE_BTN_NONE)) | |
7284 | return -EIO; | |
7285 | ||
7286 | if (result != TP_EC_MUTE_BTN_NONE) | |
7287 | pr_warn("Unexpected SAUM result %d\n", | |
7288 | result); | |
7289 | ||
7290 | /* | |
7291 | * In software mute mode, the standard codec controls take | |
7292 | * precendence, so we unmute the ThinkPad HW switch at | |
7293 | * startup. Just on case there are SAUM-capable ThinkPads | |
7294 | * with level controls, set max HW volume as well. | |
7295 | */ | |
7296 | if (tp_features.mixer_no_level_control) | |
7297 | result = volume_set_mute(false); | |
7298 | else | |
7299 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
7300 | ||
7301 | if (result != 0) | |
7302 | pr_warn("Failed to unmute the HW mute switch\n"); | |
7303 | ||
7304 | return 0; | |
7305 | } | |
7306 | ||
7307 | static void volume_exit_software_mute(void) | |
7308 | { | |
7309 | int r; | |
7310 | ||
7311 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
7312 | || r != software_mute_orig_mode) | |
7313 | pr_warn("Failed to restore mute mode\n"); | |
7314 | } | |
7315 | ||
88cc8377 | 7316 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
7317 | { |
7318 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
7319 | "ALSA: trying to set volume level to %hu\n", vol); |
7320 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
7321 | } |
7322 | ||
0d204c34 HMH |
7323 | static void volume_alsa_notify_change(void) |
7324 | { | |
7325 | struct tpacpi_alsa_data *d; | |
7326 | ||
7327 | if (alsa_card && alsa_card->private_data) { | |
7328 | d = alsa_card->private_data; | |
7329 | if (d->ctl_mute_id) | |
7330 | snd_ctl_notify(alsa_card, | |
7331 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7332 | d->ctl_mute_id); | |
7333 | if (d->ctl_vol_id) | |
7334 | snd_ctl_notify(alsa_card, | |
7335 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7336 | d->ctl_vol_id); | |
7337 | } | |
7338 | } | |
7339 | ||
7340 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7341 | struct snd_ctl_elem_info *uinfo) | |
7342 | { | |
7343 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7344 | uinfo->count = 1; | |
7345 | uinfo->value.integer.min = 0; | |
7346 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7347 | return 0; | |
7348 | } | |
7349 | ||
7350 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7351 | struct snd_ctl_elem_value *ucontrol) | |
7352 | { | |
7353 | u8 s; | |
7354 | int rc; | |
7355 | ||
7356 | rc = volume_get_status(&s); | |
7357 | if (rc < 0) | |
7358 | return rc; | |
7359 | ||
7360 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7361 | return 0; | |
7362 | } | |
7363 | ||
7364 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7365 | struct snd_ctl_elem_value *ucontrol) | |
7366 | { | |
38e11cde HMH |
7367 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7368 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7369 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7370 | } |
7371 | ||
7372 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7373 | ||
7374 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7375 | struct snd_ctl_elem_value *ucontrol) | |
7376 | { | |
7377 | u8 s; | |
7378 | int rc; | |
7379 | ||
7380 | rc = volume_get_status(&s); | |
7381 | if (rc < 0) | |
7382 | return rc; | |
7383 | ||
7384 | ucontrol->value.integer.value[0] = | |
7385 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7386 | return 0; | |
7387 | } | |
7388 | ||
7389 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7390 | struct snd_ctl_elem_value *ucontrol) | |
7391 | { | |
38e11cde HMH |
7392 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7393 | ucontrol->value.integer.value[0] ? | |
7394 | "un" : ""); | |
88cc8377 | 7395 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7396 | } |
7397 | ||
c3aa4723 | 7398 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7399 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7400 | .name = "Console Playback Volume", | |
7401 | .index = 0, | |
7402 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7403 | .info = volume_alsa_vol_info, | |
7404 | .get = volume_alsa_vol_get, | |
7405 | }; | |
7406 | ||
c3aa4723 | 7407 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7408 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7409 | .name = "Console Playback Switch", | |
7410 | .index = 0, | |
7411 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7412 | .info = volume_alsa_mute_info, | |
7413 | .get = volume_alsa_mute_get, | |
7414 | }; | |
7415 | ||
fd3c3a42 | 7416 | static void volume_suspend(void) |
329e4e18 HMH |
7417 | { |
7418 | tpacpi_volume_checkpoint_nvram(); | |
7419 | } | |
7420 | ||
0d204c34 HMH |
7421 | static void volume_resume(void) |
7422 | { | |
9a417ec0 AL |
7423 | if (software_mute_active) { |
7424 | if (volume_set_software_mute(false) < 0) | |
7425 | pr_warn("Failed to restore software mute\n"); | |
7426 | } else { | |
7427 | volume_alsa_notify_change(); | |
7428 | } | |
0d204c34 HMH |
7429 | } |
7430 | ||
329e4e18 HMH |
7431 | static void volume_shutdown(void) |
7432 | { | |
7433 | tpacpi_volume_checkpoint_nvram(); | |
7434 | } | |
7435 | ||
7436 | static void volume_exit(void) | |
7437 | { | |
0d204c34 HMH |
7438 | if (alsa_card) { |
7439 | snd_card_free(alsa_card); | |
7440 | alsa_card = NULL; | |
7441 | } | |
7442 | ||
329e4e18 | 7443 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7444 | |
7445 | if (software_mute_active) | |
7446 | volume_exit_software_mute(); | |
329e4e18 HMH |
7447 | } |
7448 | ||
0d204c34 HMH |
7449 | static int __init volume_create_alsa_mixer(void) |
7450 | { | |
7451 | struct snd_card *card; | |
7452 | struct tpacpi_alsa_data *data; | |
7453 | struct snd_kcontrol *ctl_vol; | |
7454 | struct snd_kcontrol *ctl_mute; | |
7455 | int rc; | |
7456 | ||
89235e55 TI |
7457 | rc = snd_card_new(&tpacpi_pdev->dev, |
7458 | alsa_index, alsa_id, THIS_MODULE, | |
7459 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7460 | if (rc < 0 || !card) { |
0978e012 | 7461 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7462 | return 1; |
7463 | } | |
0d204c34 HMH |
7464 | |
7465 | BUG_ON(!card->private_data); | |
7466 | data = card->private_data; | |
7467 | data->card = card; | |
7468 | ||
7469 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7470 | sizeof(card->driver)); | |
7471 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7472 | sizeof(card->shortname)); | |
7473 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7474 | (thinkpad_id.ec_version_str) ? | |
7475 | thinkpad_id.ec_version_str : "(unknown)"); | |
7476 | snprintf(card->longname, sizeof(card->longname), | |
7477 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7478 | (thinkpad_id.ec_version_str) ? | |
7479 | thinkpad_id.ec_version_str : "unknown"); | |
7480 | ||
7481 | if (volume_control_allowed) { | |
7482 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7483 | volume_alsa_control_vol.access = | |
7484 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7485 | ||
7486 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7487 | volume_alsa_control_mute.access = | |
7488 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7489 | } | |
7490 | ||
7491 | if (!tp_features.mixer_no_level_control) { | |
7492 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7493 | rc = snd_ctl_add(card, ctl_vol); | |
7494 | if (rc < 0) { | |
0978e012 JP |
7495 | pr_err("Failed to create ALSA volume control: %d\n", |
7496 | rc); | |
74c75c18 | 7497 | goto err_exit; |
78f81cc4 | 7498 | } |
0d204c34 HMH |
7499 | data->ctl_vol_id = &ctl_vol->id; |
7500 | } | |
78f81cc4 | 7501 | |
0d204c34 HMH |
7502 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7503 | rc = snd_ctl_add(card, ctl_mute); | |
7504 | if (rc < 0) { | |
0978e012 | 7505 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7506 | goto err_exit; |
0d204c34 HMH |
7507 | } |
7508 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7509 | |
0d204c34 | 7510 | rc = snd_card_register(card); |
0d204c34 | 7511 | if (rc < 0) { |
0978e012 | 7512 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7513 | goto err_exit; |
0d204c34 HMH |
7514 | } |
7515 | ||
7516 | alsa_card = card; | |
74c75c18 HMH |
7517 | return 0; |
7518 | ||
7519 | err_exit: | |
7520 | snd_card_free(card); | |
7521 | return 1; | |
0d204c34 HMH |
7522 | } |
7523 | ||
a112ceee HMH |
7524 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7525 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7526 | ||
7527 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7528 | /* Whitelist volume level on all IBM by default */ | |
7529 | { .vendor = PCI_VENDOR_ID_IBM, | |
7530 | .bios = TPACPI_MATCH_ANY, | |
7531 | .ec = TPACPI_MATCH_ANY, | |
7532 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7533 | ||
7534 | /* Lenovo models with volume control (needs confirmation) */ | |
7535 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7536 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7537 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7538 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7539 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7540 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7541 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7542 | ||
7543 | /* Whitelist mute-only on all Lenovo by default */ | |
7544 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7545 | .bios = TPACPI_MATCH_ANY, | |
7546 | .ec = TPACPI_MATCH_ANY, | |
7547 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7548 | }; | |
7549 | ||
329e4e18 HMH |
7550 | static int __init volume_init(struct ibm_init_struct *iibm) |
7551 | { | |
a112ceee | 7552 | unsigned long quirks; |
0d204c34 | 7553 | int rc; |
a112ceee | 7554 | |
329e4e18 HMH |
7555 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7556 | ||
7557 | mutex_init(&volume_mutex); | |
7558 | ||
7559 | /* | |
7560 | * Check for module parameter bogosity, note that we | |
7561 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7562 | * able to detect "unspecified" | |
7563 | */ | |
7564 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7565 | return -EINVAL; | |
7566 | ||
7567 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
5cac62ac AS |
7568 | pr_err("UCMS step volume mode not implemented, please contact %s\n", |
7569 | TPACPI_MAIL); | |
329e4e18 HMH |
7570 | return 1; |
7571 | } | |
7572 | ||
a112ceee HMH |
7573 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7574 | return -EINVAL; | |
7575 | ||
0d204c34 HMH |
7576 | /* |
7577 | * The ALSA mixer is our primary interface. | |
7578 | * When disabled, don't install the subdriver at all | |
7579 | */ | |
7580 | if (!alsa_enable) { | |
7581 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
5cac62ac | 7582 | "ALSA mixer disabled by parameter, not loading volume subdriver...\n"); |
0d204c34 HMH |
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) { |
5cac62ac AS |
7674 | seq_printf(m, "commands:\tup, down\n"); |
7675 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", | |
7676 | TP_EC_VOLUME_MAX); | |
c7ac6291 | 7677 | } |
78f81cc4 BD |
7678 | } |
7679 | } | |
7680 | ||
7681 | return 0; | |
7682 | } | |
7683 | ||
78f81cc4 BD |
7684 | static int volume_write(char *buf) |
7685 | { | |
329e4e18 HMH |
7686 | u8 s; |
7687 | u8 new_level, new_mute; | |
7688 | int l; | |
78f81cc4 | 7689 | char *cmd; |
329e4e18 | 7690 | int rc; |
78f81cc4 | 7691 | |
c7ac6291 HMH |
7692 | /* |
7693 | * We do allow volume control at driver startup, so that the | |
7694 | * user can set initial state through the volume=... parameter hack. | |
7695 | */ | |
7696 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7697 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7698 | tp_warned.volume_ctrl_forbidden = 1; | |
5cac62ac AS |
7699 | pr_notice("Console audio control in monitor mode, changes are not allowed\n"); |
7700 | pr_notice("Use the volume_control=1 module parameter to enable volume control\n"); | |
c7ac6291 HMH |
7701 | } |
7702 | return -EPERM; | |
7703 | } | |
7704 | ||
329e4e18 HMH |
7705 | rc = volume_get_status(&s); |
7706 | if (rc < 0) | |
7707 | return rc; | |
78f81cc4 | 7708 | |
329e4e18 HMH |
7709 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7710 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7711 | ||
7712 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7713 | if (!tp_features.mixer_no_level_control) { |
7714 | if (strlencmp(cmd, "up") == 0) { | |
7715 | if (new_mute) | |
7716 | new_mute = 0; | |
7717 | else if (new_level < TP_EC_VOLUME_MAX) | |
7718 | new_level++; | |
7719 | continue; | |
7720 | } else if (strlencmp(cmd, "down") == 0) { | |
7721 | if (new_mute) | |
7722 | new_mute = 0; | |
7723 | else if (new_level > 0) | |
7724 | new_level--; | |
7725 | continue; | |
7726 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7727 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7728 | new_level = l; | |
7729 | continue; | |
7730 | } | |
7731 | } | |
7732 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7733 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7734 | else if (strlencmp(cmd, "unmute") == 0) |
7735 | new_mute = 0; | |
7736 | else | |
1da177e4 | 7737 | return -EINVAL; |
329e4e18 | 7738 | } |
1da177e4 | 7739 | |
a112ceee HMH |
7740 | if (tp_features.mixer_no_level_control) { |
7741 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7742 | new_mute ? "" : "un"); | |
7743 | rc = volume_set_mute(!!new_mute); | |
7744 | } else { | |
7745 | tpacpi_disclose_usertask("procfs volume", | |
7746 | "%smute and set level to %d\n", | |
7747 | new_mute ? "" : "un", new_level); | |
7748 | rc = volume_set_status(new_mute | new_level); | |
7749 | } | |
0d204c34 | 7750 | volume_alsa_notify_change(); |
78f81cc4 | 7751 | |
329e4e18 | 7752 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7753 | } |
7754 | ||
a5763f22 HMH |
7755 | static struct ibm_struct volume_driver_data = { |
7756 | .name = "volume", | |
7757 | .read = volume_read, | |
7758 | .write = volume_write, | |
329e4e18 HMH |
7759 | .exit = volume_exit, |
7760 | .suspend = volume_suspend, | |
0d204c34 | 7761 | .resume = volume_resume, |
329e4e18 | 7762 | .shutdown = volume_shutdown, |
a5763f22 | 7763 | }; |
56b6aeb0 | 7764 | |
ff850c33 HMH |
7765 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7766 | ||
7767 | #define alsa_card NULL | |
7768 | ||
bb55a2ee | 7769 | static inline void volume_alsa_notify_change(void) |
ff850c33 HMH |
7770 | { |
7771 | } | |
7772 | ||
7773 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7774 | { | |
0978e012 | 7775 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7776 | |
7777 | return 1; | |
7778 | } | |
7779 | ||
7780 | static struct ibm_struct volume_driver_data = { | |
7781 | .name = "volume", | |
7782 | }; | |
7783 | ||
7784 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7785 | ||
56b6aeb0 HMH |
7786 | /************************************************************************* |
7787 | * Fan subdriver | |
7788 | */ | |
7789 | ||
7790 | /* | |
7791 | * FAN ACCESS MODES | |
7792 | * | |
efa27145 | 7793 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7794 | * ACPI GFAN method: returns fan level |
7795 | * | |
efa27145 | 7796 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7797 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7798 | * |
efa27145 | 7799 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7800 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7801 | * | |
f51d1a39 HMH |
7802 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7803 | * it for writing. | |
56b6aeb0 | 7804 | * |
efa27145 | 7805 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7806 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7807 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7808 | * |
7809 | * Fan speed changes of any sort (including those caused by the | |
7810 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7811 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7812 | * limited. |
7813 | * | |
7814 | * Reading is not available if GFAN exists. | |
7815 | * Writing is not available if SFAN exists. | |
7816 | * | |
7817 | * Bits | |
7818 | * 7 automatic mode engaged; | |
7819 | * (default operation mode of the ThinkPad) | |
7820 | * fan level is ignored in this mode. | |
f51d1a39 | 7821 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7822 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7823 | * the tachometer while the fan controller ramps up |
7824 | * the speed (which can take up to a few *minutes*). | |
7825 | * Speeds up fan to 100% duty-cycle, which is far above | |
7826 | * the standard RPM levels. It is not impossible that | |
7827 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7828 | * 5-3 unused in some models. Extra bits for fan level |
7829 | * in others, but still useless as all values above | |
7830 | * 7 map to the same speed as level 7 in these models. | |
7831 | * 2-0 fan level (0..7 usually) | |
7832 | * 0x00 = stop | |
7833 | * 0x07 = max (set when temperatures critical) | |
7834 | * Some ThinkPads may have other levels, see | |
efa27145 | 7835 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7836 | * |
7837 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7838 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7839 | * does so, its initial value is meaningless (0x07). |
7840 | * | |
7841 | * For firmware bugs, refer to: | |
7842 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7843 | * | |
7844 | * ---- | |
7845 | * | |
7846 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7847 | * Main fan tachometer reading (in RPM) | |
7848 | * | |
7849 | * This register is present on all ThinkPads with a new-style EC, and | |
7850 | * it is known not to be present on the A21m/e, and T22, as there is | |
7851 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7852 | * ThinkPads from this same time period (and earlier) probably lack the | |
7853 | * tachometer as well. | |
7854 | * | |
877d0310 | 7855 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7856 | * was never fixed by IBM to report the EC firmware version string |
7857 | * probably support the tachometer (like the early X models), so | |
7858 | * detecting it is quite hard. We need more data to know for sure. | |
7859 | * | |
7860 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7861 | * might result. | |
7862 | * | |
f51d1a39 HMH |
7863 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7864 | * mode. | |
56b6aeb0 HMH |
7865 | * |
7866 | * For firmware bugs, refer to: | |
7867 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7868 | * | |
d7377247 HMH |
7869 | * ---- |
7870 | * | |
7871 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7872 | * | |
7873 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7874 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7875 | * is one, the tachometer registers show the speed of the auxiliary | |
7876 | * fan. | |
7877 | * | |
7878 | * Fan control seems to affect both fans, regardless of the state | |
7879 | * of this bit. | |
7880 | * | |
7881 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7882 | * seem to support this (firmware TP-7M). | |
7883 | * | |
efa27145 | 7884 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7885 | * ThinkPad X31, X40, X41. Not available in the X60. |
7886 | * | |
7887 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7888 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7889 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7890 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7891 | * | |
7892 | * The speeds are stored on handles | |
7893 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7894 | * | |
af901ca1 | 7895 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7896 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7897 | * | |
7898 | * ACPI DSDT switches which set is in use depending on various | |
7899 | * factors. | |
7900 | * | |
efa27145 | 7901 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7902 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7903 | * but the ACPI tables just mention level 7. | |
7904 | */ | |
7905 | ||
f74a27d4 HMH |
7906 | enum { /* Fan control constants */ |
7907 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7908 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7909 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7910 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7911 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7912 | |
7913 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7914 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7915 | ||
7916 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7917 | }; | |
7918 | ||
7919 | enum fan_status_access_mode { | |
7920 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7921 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7922 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7923 | }; | |
7924 | ||
7925 | enum fan_control_access_mode { | |
7926 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7927 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7928 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7929 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7930 | }; | |
7931 | ||
7932 | enum fan_control_commands { | |
7933 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7934 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7935 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7936 | * and also watchdog cmd */ | |
7937 | }; | |
7938 | ||
90ab5ee9 | 7939 | static bool fan_control_allowed; |
f74a27d4 | 7940 | |
69ba91cb HMH |
7941 | static enum fan_status_access_mode fan_status_access_mode; |
7942 | static enum fan_control_access_mode fan_control_access_mode; | |
7943 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7944 | |
778b4d74 | 7945 | static u8 fan_control_initial_status; |
fe98a52c | 7946 | static u8 fan_control_desired_level; |
0081b162 | 7947 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7948 | static int fan_watchdog_maxinterval; |
7949 | ||
7950 | static struct mutex fan_mutex; | |
778b4d74 | 7951 | |
25c68a33 | 7952 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7953 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7954 | |
e0c7dfe7 HMH |
7955 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7956 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7957 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7958 | ); /* all others */ | |
e0c7dfe7 | 7959 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7960 | "JFNS", /* 770x-JL */ |
7961 | ); /* all others */ | |
7962 | ||
1c2ece75 HMH |
7963 | /* |
7964 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7965 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7966 | * be in auto mode (0x80). | |
7967 | * | |
7968 | * This is corrected by any write to HFSP either by the driver, or | |
7969 | * by the firmware. | |
7970 | * | |
7971 | * We assume 0x07 really means auto mode while this quirk is active, | |
7972 | * as this is far more likely than the ThinkPad being in level 7, | |
7973 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7974 | * |
7975 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7976 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7977 | */ |
7978 | ||
7d95a3d5 | 7979 | static void fan_quirk1_setup(void) |
1c2ece75 | 7980 | { |
1c2ece75 | 7981 | if (fan_control_initial_status == 0x07) { |
5cac62ac | 7982 | pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n"); |
7d95a3d5 | 7983 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
7984 | } |
7985 | } | |
7986 | ||
7987 | static void fan_quirk1_handle(u8 *fan_status) | |
7988 | { | |
7989 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7990 | if (*fan_status != fan_control_initial_status) { | |
7991 | /* something changed the HFSP regisnter since | |
7992 | * driver init time, so it is not undefined | |
7993 | * anymore */ | |
7994 | tp_features.fan_ctrl_status_undef = 0; | |
7995 | } else { | |
7996 | /* Return most likely status. In fact, it | |
7997 | * might be the only possible status */ | |
7998 | *fan_status = TP_EC_FAN_AUTO; | |
7999 | } | |
8000 | } | |
8001 | } | |
8002 | ||
d7377247 HMH |
8003 | /* Select main fan on X60/X61, NOOP on others */ |
8004 | static bool fan_select_fan1(void) | |
8005 | { | |
8006 | if (tp_features.second_fan) { | |
8007 | u8 val; | |
8008 | ||
8009 | if (ec_read(fan_select_offset, &val) < 0) | |
8010 | return false; | |
8011 | val &= 0xFEU; | |
8012 | if (ec_write(fan_select_offset, val) < 0) | |
8013 | return false; | |
8014 | } | |
8015 | return true; | |
8016 | } | |
8017 | ||
8018 | /* Select secondary fan on X60/X61 */ | |
8019 | static bool fan_select_fan2(void) | |
8020 | { | |
8021 | u8 val; | |
8022 | ||
8023 | if (!tp_features.second_fan) | |
8024 | return false; | |
8025 | ||
8026 | if (ec_read(fan_select_offset, &val) < 0) | |
8027 | return false; | |
8028 | val |= 0x01U; | |
8029 | if (ec_write(fan_select_offset, val) < 0) | |
8030 | return false; | |
8031 | ||
8032 | return true; | |
8033 | } | |
8034 | ||
fe98a52c | 8035 | /* |
b21a15f6 | 8036 | * Call with fan_mutex held |
fe98a52c | 8037 | */ |
b21a15f6 | 8038 | static void fan_update_desired_level(u8 status) |
fe98a52c | 8039 | { |
b21a15f6 HMH |
8040 | if ((status & |
8041 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8042 | if (status > 7) | |
8043 | fan_control_desired_level = 7; | |
8044 | else | |
8045 | fan_control_desired_level = status; | |
8046 | } | |
8047 | } | |
fe98a52c | 8048 | |
b21a15f6 HMH |
8049 | static int fan_get_status(u8 *status) |
8050 | { | |
8051 | u8 s; | |
fe98a52c | 8052 | |
b21a15f6 HMH |
8053 | /* TODO: |
8054 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 8055 | |
b21a15f6 | 8056 | switch (fan_status_access_mode) { |
eceeb437 | 8057 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 8058 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 8059 | int res; |
fe98a52c | 8060 | |
eceeb437 | 8061 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 8062 | return -EIO; |
fe98a52c | 8063 | |
b21a15f6 | 8064 | if (likely(status)) |
eceeb437 | 8065 | *status = res & 0x07; |
fe98a52c | 8066 | |
b21a15f6 | 8067 | break; |
eceeb437 | 8068 | } |
b21a15f6 HMH |
8069 | case TPACPI_FAN_RD_TPEC: |
8070 | /* all except 570, 600e/x, 770e, 770x */ | |
8071 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
8072 | return -EIO; | |
8073 | ||
1c2ece75 | 8074 | if (likely(status)) { |
b21a15f6 | 8075 | *status = s; |
1c2ece75 HMH |
8076 | fan_quirk1_handle(status); |
8077 | } | |
fe98a52c | 8078 | |
fe98a52c | 8079 | break; |
b21a15f6 | 8080 | |
fe98a52c | 8081 | default: |
b21a15f6 | 8082 | return -ENXIO; |
fe98a52c HMH |
8083 | } |
8084 | ||
b21a15f6 HMH |
8085 | return 0; |
8086 | } | |
fe98a52c | 8087 | |
b21a15f6 HMH |
8088 | static int fan_get_status_safe(u8 *status) |
8089 | { | |
8090 | int rc; | |
8091 | u8 s; | |
fe98a52c | 8092 | |
7646ea88 | 8093 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
8094 | return -ERESTARTSYS; |
8095 | rc = fan_get_status(&s); | |
8096 | if (!rc) | |
8097 | fan_update_desired_level(s); | |
8098 | mutex_unlock(&fan_mutex); | |
fe98a52c | 8099 | |
a7718360 DC |
8100 | if (rc) |
8101 | return rc; | |
b21a15f6 HMH |
8102 | if (status) |
8103 | *status = s; | |
fe98a52c | 8104 | |
a7718360 | 8105 | return 0; |
b21a15f6 HMH |
8106 | } |
8107 | ||
8108 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 8109 | { |
b21a15f6 | 8110 | u8 hi, lo; |
fe98a52c | 8111 | |
b21a15f6 HMH |
8112 | switch (fan_status_access_mode) { |
8113 | case TPACPI_FAN_RD_TPEC: | |
8114 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
8115 | if (unlikely(!fan_select_fan1())) |
8116 | return -EIO; | |
b21a15f6 HMH |
8117 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
8118 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
8119 | return -EIO; | |
fe98a52c | 8120 | |
b21a15f6 HMH |
8121 | if (likely(speed)) |
8122 | *speed = (hi << 8) | lo; | |
fe98a52c | 8123 | |
b21a15f6 | 8124 | break; |
fe98a52c | 8125 | |
b21a15f6 HMH |
8126 | default: |
8127 | return -ENXIO; | |
8128 | } | |
fe98a52c | 8129 | |
b21a15f6 | 8130 | return 0; |
fe98a52c HMH |
8131 | } |
8132 | ||
d7377247 HMH |
8133 | static int fan2_get_speed(unsigned int *speed) |
8134 | { | |
8135 | u8 hi, lo; | |
8136 | bool rc; | |
8137 | ||
8138 | switch (fan_status_access_mode) { | |
8139 | case TPACPI_FAN_RD_TPEC: | |
8140 | /* all except 570, 600e/x, 770e, 770x */ | |
8141 | if (unlikely(!fan_select_fan2())) | |
8142 | return -EIO; | |
8143 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
8144 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
8145 | fan_select_fan1(); /* play it safe */ | |
8146 | if (rc) | |
8147 | return -EIO; | |
8148 | ||
8149 | if (likely(speed)) | |
8150 | *speed = (hi << 8) | lo; | |
8151 | ||
8152 | break; | |
8153 | ||
8154 | default: | |
8155 | return -ENXIO; | |
8156 | } | |
8157 | ||
8158 | return 0; | |
8159 | } | |
8160 | ||
b21a15f6 | 8161 | static int fan_set_level(int level) |
fe98a52c | 8162 | { |
b21a15f6 HMH |
8163 | if (!fan_control_allowed) |
8164 | return -EPERM; | |
fe98a52c | 8165 | |
b21a15f6 HMH |
8166 | switch (fan_control_access_mode) { |
8167 | case TPACPI_FAN_WR_ACPI_SFAN: | |
8168 | if (level >= 0 && level <= 7) { | |
8169 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
8170 | return -EIO; | |
8171 | } else | |
8172 | return -EINVAL; | |
8173 | break; | |
fe98a52c | 8174 | |
b21a15f6 HMH |
8175 | case TPACPI_FAN_WR_ACPI_FANS: |
8176 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8177 | if (!(level & TP_EC_FAN_AUTO) && |
8178 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
8179 | ((level < 0) || (level > 7))) |
8180 | return -EINVAL; | |
fe98a52c | 8181 | |
b21a15f6 HMH |
8182 | /* safety net should the EC not support AUTO |
8183 | * or FULLSPEED mode bits and just ignore them */ | |
8184 | if (level & TP_EC_FAN_FULLSPEED) | |
8185 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 8186 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 8187 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 8188 | |
b21a15f6 HMH |
8189 | if (!acpi_ec_write(fan_status_offset, level)) |
8190 | return -EIO; | |
8191 | else | |
8192 | tp_features.fan_ctrl_status_undef = 0; | |
8193 | break; | |
fe98a52c | 8194 | |
b21a15f6 HMH |
8195 | default: |
8196 | return -ENXIO; | |
8197 | } | |
74a60c0f HMH |
8198 | |
8199 | vdbg_printk(TPACPI_DBG_FAN, | |
8200 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 8201 | return 0; |
fe98a52c HMH |
8202 | } |
8203 | ||
b21a15f6 | 8204 | static int fan_set_level_safe(int level) |
fe98a52c | 8205 | { |
b21a15f6 | 8206 | int rc; |
fe98a52c | 8207 | |
b21a15f6 HMH |
8208 | if (!fan_control_allowed) |
8209 | return -EPERM; | |
fe98a52c | 8210 | |
7646ea88 | 8211 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8212 | return -ERESTARTSYS; |
fe98a52c | 8213 | |
b21a15f6 HMH |
8214 | if (level == TPACPI_FAN_LAST_LEVEL) |
8215 | level = fan_control_desired_level; | |
fe98a52c | 8216 | |
b21a15f6 HMH |
8217 | rc = fan_set_level(level); |
8218 | if (!rc) | |
8219 | fan_update_desired_level(level); | |
8220 | ||
8221 | mutex_unlock(&fan_mutex); | |
8222 | return rc; | |
fe98a52c HMH |
8223 | } |
8224 | ||
b21a15f6 | 8225 | static int fan_set_enable(void) |
fe98a52c | 8226 | { |
b21a15f6 HMH |
8227 | u8 s; |
8228 | int rc; | |
fe98a52c | 8229 | |
ecf2a80a HMH |
8230 | if (!fan_control_allowed) |
8231 | return -EPERM; | |
8232 | ||
7646ea88 | 8233 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8234 | return -ERESTARTSYS; |
fe98a52c | 8235 | |
b21a15f6 HMH |
8236 | switch (fan_control_access_mode) { |
8237 | case TPACPI_FAN_WR_ACPI_FANS: | |
8238 | case TPACPI_FAN_WR_TPEC: | |
8239 | rc = fan_get_status(&s); | |
8240 | if (rc < 0) | |
8241 | break; | |
fe98a52c | 8242 | |
b21a15f6 HMH |
8243 | /* Don't go out of emergency fan mode */ |
8244 | if (s != 7) { | |
8245 | s &= 0x07; | |
8246 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
8247 | } | |
fe98a52c | 8248 | |
b21a15f6 HMH |
8249 | if (!acpi_ec_write(fan_status_offset, s)) |
8250 | rc = -EIO; | |
8251 | else { | |
8252 | tp_features.fan_ctrl_status_undef = 0; | |
8253 | rc = 0; | |
8254 | } | |
8255 | break; | |
fe98a52c | 8256 | |
b21a15f6 HMH |
8257 | case TPACPI_FAN_WR_ACPI_SFAN: |
8258 | rc = fan_get_status(&s); | |
8259 | if (rc < 0) | |
8260 | break; | |
fe98a52c | 8261 | |
b21a15f6 | 8262 | s &= 0x07; |
fe98a52c | 8263 | |
b21a15f6 HMH |
8264 | /* Set fan to at least level 4 */ |
8265 | s |= 4; | |
fe08bc4b | 8266 | |
b21a15f6 | 8267 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 8268 | rc = -EIO; |
b21a15f6 HMH |
8269 | else |
8270 | rc = 0; | |
8271 | break; | |
78f81cc4 | 8272 | |
b21a15f6 HMH |
8273 | default: |
8274 | rc = -ENXIO; | |
8275 | } | |
5fba344c | 8276 | |
b21a15f6 | 8277 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
8278 | |
8279 | if (!rc) | |
8280 | vdbg_printk(TPACPI_DBG_FAN, | |
8281 | "fan control: set fan control register to 0x%02x\n", | |
8282 | s); | |
b21a15f6 | 8283 | return rc; |
69ba91cb | 8284 | } |
78f81cc4 | 8285 | |
b21a15f6 | 8286 | static int fan_set_disable(void) |
78f81cc4 | 8287 | { |
b21a15f6 | 8288 | int rc; |
c52f0aa5 | 8289 | |
b21a15f6 HMH |
8290 | if (!fan_control_allowed) |
8291 | return -EPERM; | |
78f81cc4 | 8292 | |
7646ea88 | 8293 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8294 | return -ERESTARTSYS; |
3ef8a609 | 8295 | |
b21a15f6 HMH |
8296 | rc = 0; |
8297 | switch (fan_control_access_mode) { | |
8298 | case TPACPI_FAN_WR_ACPI_FANS: | |
8299 | case TPACPI_FAN_WR_TPEC: | |
8300 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
8301 | rc = -EIO; | |
8302 | else { | |
8303 | fan_control_desired_level = 0; | |
8304 | tp_features.fan_ctrl_status_undef = 0; | |
8305 | } | |
3ef8a609 HMH |
8306 | break; |
8307 | ||
b21a15f6 HMH |
8308 | case TPACPI_FAN_WR_ACPI_SFAN: |
8309 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
8310 | rc = -EIO; | |
8311 | else | |
8312 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
8313 | break; |
8314 | ||
8315 | default: | |
b21a15f6 | 8316 | rc = -ENXIO; |
78f81cc4 BD |
8317 | } |
8318 | ||
74a60c0f HMH |
8319 | if (!rc) |
8320 | vdbg_printk(TPACPI_DBG_FAN, | |
8321 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 8322 | |
fe98a52c | 8323 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
8324 | return rc; |
8325 | } | |
8326 | ||
b21a15f6 | 8327 | static int fan_set_speed(int speed) |
c52f0aa5 | 8328 | { |
b21a15f6 | 8329 | int rc; |
c52f0aa5 | 8330 | |
b21a15f6 HMH |
8331 | if (!fan_control_allowed) |
8332 | return -EPERM; | |
3ef8a609 | 8333 | |
7646ea88 | 8334 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8335 | return -ERESTARTSYS; |
c52f0aa5 | 8336 | |
b21a15f6 HMH |
8337 | rc = 0; |
8338 | switch (fan_control_access_mode) { | |
8339 | case TPACPI_FAN_WR_ACPI_FANS: | |
8340 | if (speed >= 0 && speed <= 65535) { | |
8341 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8342 | speed, speed, speed)) | |
8343 | rc = -EIO; | |
8344 | } else | |
8345 | rc = -EINVAL; | |
c52f0aa5 HMH |
8346 | break; |
8347 | ||
8348 | default: | |
b21a15f6 | 8349 | rc = -ENXIO; |
c52f0aa5 HMH |
8350 | } |
8351 | ||
b21a15f6 HMH |
8352 | mutex_unlock(&fan_mutex); |
8353 | return rc; | |
16663a87 HMH |
8354 | } |
8355 | ||
8356 | static void fan_watchdog_reset(void) | |
8357 | { | |
4985cd0a HMH |
8358 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8359 | return; | |
8360 | ||
8fef502e | 8361 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8362 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8363 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8364 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8365 | else | |
8366 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8367 | } |
8368 | ||
b21a15f6 | 8369 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8370 | { |
b21a15f6 | 8371 | int rc; |
18ad7996 | 8372 | |
b21a15f6 HMH |
8373 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8374 | return; | |
a12095c2 | 8375 | |
0978e012 | 8376 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8377 | rc = fan_set_enable(); |
8378 | if (rc < 0) { | |
5cac62ac AS |
8379 | pr_err("fan watchdog: error %d while enabling fan, will try again later...\n", |
8380 | rc); | |
b21a15f6 HMH |
8381 | /* reschedule for later */ |
8382 | fan_watchdog_reset(); | |
8383 | } | |
8384 | } | |
eaa7571b | 8385 | |
b21a15f6 HMH |
8386 | /* |
8387 | * SYSFS fan layout: hwmon compatible (device) | |
8388 | * | |
8389 | * pwm*_enable: | |
8390 | * 0: "disengaged" mode | |
8391 | * 1: manual mode | |
8392 | * 2: native EC "auto" mode (recommended, hardware default) | |
8393 | * | |
8394 | * pwm*: set speed in manual mode, ignored otherwise. | |
8395 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8396 | * interpolation. | |
8397 | * | |
8398 | * fan*_input: tachometer reading, RPM | |
8399 | * | |
8400 | * | |
8401 | * SYSFS fan layout: extensions | |
8402 | * | |
8403 | * fan_watchdog (driver): | |
8404 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8405 | */ | |
8406 | ||
8407 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8408 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8409 | struct device_attribute *attr, | |
8410 | char *buf) | |
8411 | { | |
8412 | int res, mode; | |
8413 | u8 status; | |
8414 | ||
8415 | res = fan_get_status_safe(&status); | |
8416 | if (res) | |
8417 | return res; | |
8418 | ||
b21a15f6 HMH |
8419 | if (status & TP_EC_FAN_FULLSPEED) { |
8420 | mode = 0; | |
8421 | } else if (status & TP_EC_FAN_AUTO) { | |
8422 | mode = 2; | |
8423 | } else | |
8424 | mode = 1; | |
8425 | ||
8426 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8427 | } | |
a12095c2 | 8428 | |
b21a15f6 HMH |
8429 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8430 | struct device_attribute *attr, | |
8431 | const char *buf, size_t count) | |
8432 | { | |
8433 | unsigned long t; | |
8434 | int res, level; | |
8435 | ||
8436 | if (parse_strtoul(buf, 2, &t)) | |
8437 | return -EINVAL; | |
8438 | ||
74a60c0f HMH |
8439 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8440 | "set fan mode to %lu\n", t); | |
8441 | ||
b21a15f6 HMH |
8442 | switch (t) { |
8443 | case 0: | |
8444 | level = TP_EC_FAN_FULLSPEED; | |
8445 | break; | |
8446 | case 1: | |
8447 | level = TPACPI_FAN_LAST_LEVEL; | |
8448 | break; | |
8449 | case 2: | |
8450 | level = TP_EC_FAN_AUTO; | |
8451 | break; | |
8452 | case 3: | |
8453 | /* reserved for software-controlled auto mode */ | |
8454 | return -ENOSYS; | |
18ad7996 | 8455 | default: |
b21a15f6 | 8456 | return -EINVAL; |
18ad7996 | 8457 | } |
b21a15f6 HMH |
8458 | |
8459 | res = fan_set_level_safe(level); | |
8460 | if (res == -ENXIO) | |
8461 | return -EINVAL; | |
8462 | else if (res < 0) | |
8463 | return res; | |
8464 | ||
8465 | fan_watchdog_reset(); | |
8466 | ||
8467 | return count; | |
18ad7996 HMH |
8468 | } |
8469 | ||
5fb73bc2 BM |
8470 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8471 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8472 | |
8473 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8474 | static ssize_t fan_pwm1_show(struct device *dev, | |
8475 | struct device_attribute *attr, | |
8476 | char *buf) | |
fe98a52c | 8477 | { |
b21a15f6 HMH |
8478 | int res; |
8479 | u8 status; | |
fe98a52c | 8480 | |
b21a15f6 HMH |
8481 | res = fan_get_status_safe(&status); |
8482 | if (res) | |
8483 | return res; | |
ecf2a80a | 8484 | |
b21a15f6 HMH |
8485 | if ((status & |
8486 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8487 | status = fan_control_desired_level; | |
fe98a52c | 8488 | |
b21a15f6 HMH |
8489 | if (status > 7) |
8490 | status = 7; | |
fe98a52c | 8491 | |
b21a15f6 | 8492 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8493 | } |
8494 | ||
b21a15f6 HMH |
8495 | static ssize_t fan_pwm1_store(struct device *dev, |
8496 | struct device_attribute *attr, | |
8497 | const char *buf, size_t count) | |
18ad7996 | 8498 | { |
b21a15f6 | 8499 | unsigned long s; |
1c6a334e | 8500 | int rc; |
b21a15f6 | 8501 | u8 status, newlevel; |
1c6a334e | 8502 | |
b21a15f6 HMH |
8503 | if (parse_strtoul(buf, 255, &s)) |
8504 | return -EINVAL; | |
8505 | ||
74a60c0f HMH |
8506 | tpacpi_disclose_usertask("hwmon pwm1", |
8507 | "set fan speed to %lu\n", s); | |
8508 | ||
b21a15f6 HMH |
8509 | /* scale down from 0-255 to 0-7 */ |
8510 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8511 | |
7646ea88 | 8512 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8513 | return -ERESTARTSYS; |
40ca9fdf | 8514 | |
b21a15f6 HMH |
8515 | rc = fan_get_status(&status); |
8516 | if (!rc && (status & | |
8517 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8518 | rc = fan_set_level(newlevel); | |
8519 | if (rc == -ENXIO) | |
8520 | rc = -EINVAL; | |
8521 | else if (!rc) { | |
8522 | fan_update_desired_level(newlevel); | |
8523 | fan_watchdog_reset(); | |
eaa7571b | 8524 | } |
b21a15f6 | 8525 | } |
1c6a334e | 8526 | |
b21a15f6 | 8527 | mutex_unlock(&fan_mutex); |
72a979f0 | 8528 | return (rc) ? rc : count; |
b21a15f6 | 8529 | } |
1c6a334e | 8530 | |
5fb73bc2 | 8531 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8532 | |
b21a15f6 HMH |
8533 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8534 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8535 | struct device_attribute *attr, | |
8536 | char *buf) | |
8537 | { | |
8538 | int res; | |
8539 | unsigned int speed; | |
1c6a334e | 8540 | |
b21a15f6 HMH |
8541 | res = fan_get_speed(&speed); |
8542 | if (res < 0) | |
8543 | return res; | |
1c6a334e | 8544 | |
b21a15f6 HMH |
8545 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8546 | } | |
18ad7996 | 8547 | |
5fb73bc2 | 8548 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8549 | |
d7377247 HMH |
8550 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8551 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8552 | struct device_attribute *attr, | |
8553 | char *buf) | |
8554 | { | |
8555 | int res; | |
8556 | unsigned int speed; | |
8557 | ||
8558 | res = fan2_get_speed(&speed); | |
8559 | if (res < 0) | |
8560 | return res; | |
8561 | ||
8562 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8563 | } | |
8564 | ||
5fb73bc2 | 8565 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8566 | |
b21a15f6 HMH |
8567 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
8568 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
8569 | char *buf) | |
8570 | { | |
8571 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8572 | } |
8573 | ||
b21a15f6 HMH |
8574 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
8575 | const char *buf, size_t count) | |
18ad7996 | 8576 | { |
b21a15f6 HMH |
8577 | unsigned long t; |
8578 | ||
8579 | if (parse_strtoul(buf, 120, &t)) | |
8580 | return -EINVAL; | |
40ca9fdf | 8581 | |
ecf2a80a HMH |
8582 | if (!fan_control_allowed) |
8583 | return -EPERM; | |
8584 | ||
b21a15f6 HMH |
8585 | fan_watchdog_maxinterval = t; |
8586 | fan_watchdog_reset(); | |
40ca9fdf | 8587 | |
74a60c0f HMH |
8588 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8589 | ||
b21a15f6 HMH |
8590 | return count; |
8591 | } | |
8592 | ||
8593 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
8594 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
8595 | ||
8596 | /* --------------------------------------------------------------------- */ | |
8597 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8598 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8599 | &dev_attr_fan1_input.attr, | |
d7377247 | 8600 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8601 | NULL |
8602 | }; | |
8603 | ||
8604 | static const struct attribute_group fan_attr_group = { | |
8605 | .attrs = fan_attributes, | |
8606 | }; | |
8607 | ||
d7377247 HMH |
8608 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
8609 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
8610 | |
8611 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
8612 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
8613 | .bios = TPACPI_MATCH_ANY, \ | |
8614 | .ec = TPID(__id1, __id2), \ | |
8615 | .quirks = __quirks } | |
8616 | ||
d7377247 HMH |
8617 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
8618 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
8619 | .bios = TPACPI_MATCH_ANY, \ | |
8620 | .ec = TPID(__id1, __id2), \ | |
8621 | .quirks = __quirks } | |
8622 | ||
7d95a3d5 HMH |
8623 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
8624 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8625 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8626 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8627 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8628 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8629 | }; |
8630 | ||
d7377247 | 8631 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8632 | #undef TPACPI_FAN_QI |
8633 | ||
b21a15f6 HMH |
8634 | static int __init fan_init(struct ibm_init_struct *iibm) |
8635 | { | |
8636 | int rc; | |
7d95a3d5 | 8637 | unsigned long quirks; |
b21a15f6 | 8638 | |
74a60c0f HMH |
8639 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8640 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8641 | |
8642 | mutex_init(&fan_mutex); | |
8643 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8644 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8645 | fan_control_commands = 0; | |
8646 | fan_watchdog_maxinterval = 0; | |
8647 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8648 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8649 | fan_control_desired_level = 7; |
8650 | ||
e28393c0 HMH |
8651 | if (tpacpi_is_ibm()) { |
8652 | TPACPI_ACPIHANDLE_INIT(fans); | |
8653 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8654 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8655 | } | |
b21a15f6 | 8656 | |
7d95a3d5 HMH |
8657 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8658 | ARRAY_SIZE(fan_quirk_table)); | |
8659 | ||
b21a15f6 HMH |
8660 | if (gfan_handle) { |
8661 | /* 570, 600e/x, 770e, 770x */ | |
8662 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8663 | } else { | |
8664 | /* all other ThinkPads: note that even old-style | |
8665 | * ThinkPad ECs supports the fan control register */ | |
8666 | if (likely(acpi_ec_read(fan_status_offset, | |
8667 | &fan_control_initial_status))) { | |
8668 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8669 | if (quirks & TPACPI_FAN_Q1) |
8670 | fan_quirk1_setup(); | |
d7377247 HMH |
8671 | if (quirks & TPACPI_FAN_2FAN) { |
8672 | tp_features.second_fan = 1; | |
8673 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8674 | "secondary fan support enabled\n"); | |
8675 | } | |
b21a15f6 | 8676 | } else { |
5cac62ac | 8677 | pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n"); |
b21a15f6 HMH |
8678 | return 1; |
8679 | } | |
8680 | } | |
8681 | ||
8682 | if (sfan_handle) { | |
8683 | /* 570, 770x-JL */ | |
8684 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8685 | fan_control_commands |= | |
8686 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8687 | } else { | |
8688 | if (!gfan_handle) { | |
8689 | /* gfan without sfan means no fan control */ | |
8690 | /* all other models implement TP EC 0x2f control */ | |
8691 | ||
8692 | if (fans_handle) { | |
8693 | /* X31, X40, X41 */ | |
8694 | fan_control_access_mode = | |
8695 | TPACPI_FAN_WR_ACPI_FANS; | |
8696 | fan_control_commands |= | |
8697 | TPACPI_FAN_CMD_SPEED | | |
8698 | TPACPI_FAN_CMD_LEVEL | | |
8699 | TPACPI_FAN_CMD_ENABLE; | |
8700 | } else { | |
8701 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8702 | fan_control_commands |= | |
8703 | TPACPI_FAN_CMD_LEVEL | | |
8704 | TPACPI_FAN_CMD_ENABLE; | |
8705 | } | |
fe98a52c | 8706 | } |
b21a15f6 | 8707 | } |
18ad7996 | 8708 | |
74a60c0f HMH |
8709 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8710 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8711 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8712 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8713 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8714 | |
b21a15f6 HMH |
8715 | /* fan control master switch */ |
8716 | if (!fan_control_allowed) { | |
8717 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8718 | fan_control_commands = 0; | |
74a60c0f | 8719 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8720 | "fan control features disabled by parameter\n"); |
18ad7996 | 8721 | } |
40ca9fdf | 8722 | |
b21a15f6 HMH |
8723 | /* update fan_control_desired_level */ |
8724 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8725 | fan_get_status_safe(NULL); | |
fe98a52c | 8726 | |
b21a15f6 HMH |
8727 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8728 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8729 | if (tp_features.second_fan) { |
8730 | /* attach second fan tachometer */ | |
8731 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8732 | &dev_attr_fan2_input.attr; |
d7377247 | 8733 | } |
b21a15f6 HMH |
8734 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8735 | &fan_attr_group); | |
b21a15f6 HMH |
8736 | if (rc < 0) |
8737 | return rc; | |
9c0a76e1 HMH |
8738 | |
8739 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8740 | &driver_attr_fan_watchdog); | |
8741 | if (rc < 0) { | |
8742 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8743 | &fan_attr_group); | |
8744 | return rc; | |
8745 | } | |
b21a15f6 HMH |
8746 | return 0; |
8747 | } else | |
8748 | return 1; | |
56b6aeb0 HMH |
8749 | } |
8750 | ||
b21a15f6 | 8751 | static void fan_exit(void) |
56b6aeb0 | 8752 | { |
74a60c0f | 8753 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8754 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8755 | |
b21a15f6 HMH |
8756 | /* FIXME: can we really do this unconditionally? */ |
8757 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8758 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8759 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8760 | |
b21a15f6 | 8761 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8762 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8763 | } |
8764 | ||
fd3c3a42 | 8765 | static void fan_suspend(void) |
75700e53 | 8766 | { |
0081b162 HMH |
8767 | int rc; |
8768 | ||
75700e53 HMH |
8769 | if (!fan_control_allowed) |
8770 | return; | |
8771 | ||
8772 | /* Store fan status in cache */ | |
0081b162 HMH |
8773 | fan_control_resume_level = 0; |
8774 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8775 | if (rc < 0) | |
5cac62ac AS |
8776 | pr_notice("failed to read fan level for later restore during resume: %d\n", |
8777 | rc); | |
0081b162 HMH |
8778 | |
8779 | /* if it is undefined, don't attempt to restore it. | |
8780 | * KEEP THIS LAST */ | |
75700e53 | 8781 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8782 | fan_control_resume_level = 0; |
75700e53 HMH |
8783 | } |
8784 | ||
8785 | static void fan_resume(void) | |
8786 | { | |
75700e53 HMH |
8787 | u8 current_level = 7; |
8788 | bool do_set = false; | |
0081b162 | 8789 | int rc; |
75700e53 HMH |
8790 | |
8791 | /* DSDT *always* updates status on resume */ | |
8792 | tp_features.fan_ctrl_status_undef = 0; | |
8793 | ||
75700e53 | 8794 | if (!fan_control_allowed || |
0081b162 | 8795 | !fan_control_resume_level || |
75700e53 HMH |
8796 | (fan_get_status_safe(¤t_level) < 0)) |
8797 | return; | |
8798 | ||
8799 | switch (fan_control_access_mode) { | |
8800 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8801 | /* never decrease fan level */ |
8802 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8803 | break; |
8804 | case TPACPI_FAN_WR_ACPI_FANS: | |
8805 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8806 | /* never decrease fan level, scale is: |
8807 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8808 | * | |
8809 | * We expect the firmware to set either 7 or AUTO, but we | |
8810 | * handle FULLSPEED out of paranoia. | |
8811 | * | |
8812 | * So, we can safely only restore FULLSPEED or 7, anything | |
8813 | * else could slow the fan. Restoring AUTO is useless, at | |
8814 | * best that's exactly what the DSDT already set (it is the | |
8815 | * slower it uses). | |
8816 | * | |
8817 | * Always keep in mind that the DSDT *will* have set the | |
8818 | * fans to what the vendor supposes is the best level. We | |
8819 | * muck with it only to speed the fan up. | |
8820 | */ | |
8821 | if (fan_control_resume_level != 7 && | |
8822 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8823 | return; | |
8824 | else | |
8825 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8826 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8827 | break; |
8828 | default: | |
8829 | return; | |
8830 | } | |
8831 | if (do_set) { | |
0978e012 JP |
8832 | pr_notice("restoring fan level to 0x%02x\n", |
8833 | fan_control_resume_level); | |
0081b162 HMH |
8834 | rc = fan_set_level_safe(fan_control_resume_level); |
8835 | if (rc < 0) | |
0978e012 | 8836 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8837 | } |
8838 | } | |
8839 | ||
887965e6 | 8840 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8841 | { |
56b6aeb0 HMH |
8842 | int rc; |
8843 | u8 status; | |
8844 | unsigned int speed = 0; | |
8845 | ||
8846 | switch (fan_status_access_mode) { | |
efa27145 | 8847 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8848 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8849 | rc = fan_get_status_safe(&status); |
8850 | if (rc < 0) | |
56b6aeb0 HMH |
8851 | return rc; |
8852 | ||
887965e6 | 8853 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8854 | "level:\t\t%d\n", |
8855 | (status != 0) ? "enabled" : "disabled", status); | |
8856 | break; | |
8857 | ||
efa27145 | 8858 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8859 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8860 | rc = fan_get_status_safe(&status); |
8861 | if (rc < 0) | |
56b6aeb0 HMH |
8862 | return rc; |
8863 | ||
887965e6 | 8864 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8865 | (status != 0) ? "enabled" : "disabled"); |
8866 | ||
35ff8b9f HMH |
8867 | rc = fan_get_speed(&speed); |
8868 | if (rc < 0) | |
56b6aeb0 HMH |
8869 | return rc; |
8870 | ||
887965e6 | 8871 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8872 | |
efa27145 | 8873 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8874 | /* Disengaged mode takes precedence */ |
887965e6 | 8875 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8876 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8877 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8878 | else |
887965e6 | 8879 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8880 | break; |
8881 | ||
efa27145 | 8882 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8883 | default: |
887965e6 | 8884 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8885 | } |
8886 | ||
efa27145 | 8887 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8888 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8889 | |
8890 | switch (fan_control_access_mode) { | |
efa27145 | 8891 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8892 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8893 | break; |
8894 | ||
8895 | default: | |
5cac62ac | 8896 | seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8897 | break; |
8898 | } | |
8899 | } | |
18ad7996 | 8900 | |
efa27145 | 8901 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8902 | seq_printf(m, "commands:\tenable, disable\n" |
5cac62ac | 8903 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n"); |
1da177e4 | 8904 | |
efa27145 | 8905 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
5cac62ac | 8906 | seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n"); |
56b6aeb0 | 8907 | |
887965e6 | 8908 | return 0; |
78f81cc4 BD |
8909 | } |
8910 | ||
18ad7996 HMH |
8911 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8912 | { | |
8913 | int level; | |
8914 | ||
a12095c2 | 8915 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8916 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8917 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8918 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8919 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8920 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8921 | return 0; |
8922 | ||
35ff8b9f HMH |
8923 | *rc = fan_set_level_safe(level); |
8924 | if (*rc == -ENXIO) | |
0978e012 JP |
8925 | pr_err("level command accepted for unsupported access mode %d\n", |
8926 | fan_control_access_mode); | |
74a60c0f HMH |
8927 | else if (!*rc) |
8928 | tpacpi_disclose_usertask("procfs fan", | |
8929 | "set level to %d\n", level); | |
18ad7996 HMH |
8930 | |
8931 | return 1; | |
8932 | } | |
8933 | ||
8934 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8935 | { | |
8936 | if (strlencmp(cmd, "enable") != 0) | |
8937 | return 0; | |
8938 | ||
35ff8b9f HMH |
8939 | *rc = fan_set_enable(); |
8940 | if (*rc == -ENXIO) | |
0978e012 JP |
8941 | pr_err("enable command accepted for unsupported access mode %d\n", |
8942 | fan_control_access_mode); | |
74a60c0f HMH |
8943 | else if (!*rc) |
8944 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8945 | |
8946 | return 1; | |
8947 | } | |
8948 | ||
8949 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8950 | { | |
8951 | if (strlencmp(cmd, "disable") != 0) | |
8952 | return 0; | |
8953 | ||
35ff8b9f HMH |
8954 | *rc = fan_set_disable(); |
8955 | if (*rc == -ENXIO) | |
0978e012 JP |
8956 | pr_err("disable command accepted for unsupported access mode %d\n", |
8957 | fan_control_access_mode); | |
74a60c0f HMH |
8958 | else if (!*rc) |
8959 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8960 | |
8961 | return 1; | |
8962 | } | |
8963 | ||
8964 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8965 | { | |
8966 | int speed; | |
8967 | ||
a8b7a662 HMH |
8968 | /* TODO: |
8969 | * Support speed <low> <medium> <high> ? */ | |
8970 | ||
18ad7996 HMH |
8971 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8972 | return 0; | |
8973 | ||
35ff8b9f HMH |
8974 | *rc = fan_set_speed(speed); |
8975 | if (*rc == -ENXIO) | |
0978e012 JP |
8976 | pr_err("speed command accepted for unsupported access mode %d\n", |
8977 | fan_control_access_mode); | |
74a60c0f HMH |
8978 | else if (!*rc) |
8979 | tpacpi_disclose_usertask("procfs fan", | |
8980 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8981 | |
8982 | return 1; | |
8983 | } | |
8984 | ||
16663a87 HMH |
8985 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8986 | { | |
8987 | int interval; | |
8988 | ||
8989 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8990 | return 0; | |
8991 | ||
8992 | if (interval < 0 || interval > 120) | |
8993 | *rc = -EINVAL; | |
74a60c0f | 8994 | else { |
16663a87 | 8995 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8996 | tpacpi_disclose_usertask("procfs fan", |
8997 | "set watchdog timer to %d\n", | |
8998 | interval); | |
8999 | } | |
16663a87 HMH |
9000 | |
9001 | return 1; | |
9002 | } | |
9003 | ||
18ad7996 HMH |
9004 | static int fan_write(char *buf) |
9005 | { | |
9006 | char *cmd; | |
9007 | int rc = 0; | |
9008 | ||
9009 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 9010 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 9011 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 9012 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 9013 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
9014 | fan_write_cmd_disable(cmd, &rc) || |
9015 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 9016 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
9017 | fan_write_cmd_speed(cmd, &rc)) |
9018 | ) | |
9019 | rc = -EINVAL; | |
16663a87 HMH |
9020 | else if (!rc) |
9021 | fan_watchdog_reset(); | |
18ad7996 HMH |
9022 | } |
9023 | ||
9024 | return rc; | |
9025 | } | |
9026 | ||
a5763f22 HMH |
9027 | static struct ibm_struct fan_driver_data = { |
9028 | .name = "fan", | |
9029 | .read = fan_read, | |
9030 | .write = fan_write, | |
9031 | .exit = fan_exit, | |
75700e53 HMH |
9032 | .suspend = fan_suspend, |
9033 | .resume = fan_resume, | |
a5763f22 HMH |
9034 | }; |
9035 | ||
420f9739 DH |
9036 | /************************************************************************* |
9037 | * Mute LED subdriver | |
9038 | */ | |
9039 | ||
9040 | ||
9041 | struct tp_led_table { | |
9042 | acpi_string name; | |
9043 | int on_value; | |
9044 | int off_value; | |
9045 | int state; | |
9046 | }; | |
9047 | ||
9048 | static struct tp_led_table led_tables[] = { | |
9049 | [TPACPI_LED_MUTE] = { | |
9050 | .name = "SSMS", | |
9051 | .on_value = 1, | |
9052 | .off_value = 0, | |
9053 | }, | |
9054 | [TPACPI_LED_MICMUTE] = { | |
9055 | .name = "MMTS", | |
9056 | .on_value = 2, | |
9057 | .off_value = 0, | |
9058 | }, | |
9059 | }; | |
9060 | ||
9061 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
9062 | { | |
9063 | acpi_handle temp; | |
9064 | int output; | |
9065 | ||
3526ecad | 9066 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 DH |
9067 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); |
9068 | return -EIO; | |
9069 | } | |
9070 | ||
9071 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
9072 | state ? t->on_value : t->off_value)) | |
9073 | return -EIO; | |
9074 | ||
9075 | t->state = state; | |
9076 | return state; | |
9077 | } | |
9078 | ||
9079 | int tpacpi_led_set(int whichled, bool on) | |
9080 | { | |
9081 | struct tp_led_table *t; | |
9082 | ||
9083 | if (whichled < 0 || whichled >= TPACPI_LED_MAX) | |
9084 | return -EINVAL; | |
9085 | ||
9086 | t = &led_tables[whichled]; | |
9087 | if (t->state < 0 || t->state == on) | |
9088 | return t->state; | |
9089 | return mute_led_on_off(t, on); | |
9090 | } | |
9091 | EXPORT_SYMBOL_GPL(tpacpi_led_set); | |
9092 | ||
9093 | static int mute_led_init(struct ibm_init_struct *iibm) | |
9094 | { | |
9095 | acpi_handle temp; | |
9096 | int i; | |
9097 | ||
9098 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9099 | struct tp_led_table *t = &led_tables[i]; | |
9100 | if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) | |
9101 | mute_led_on_off(t, false); | |
9102 | else | |
9103 | t->state = -ENODEV; | |
9104 | } | |
9105 | return 0; | |
9106 | } | |
9107 | ||
9108 | static void mute_led_exit(void) | |
9109 | { | |
9110 | int i; | |
9111 | ||
9112 | for (i = 0; i < TPACPI_LED_MAX; i++) | |
9113 | tpacpi_led_set(i, false); | |
9114 | } | |
9115 | ||
119f4498 TI |
9116 | static void mute_led_resume(void) |
9117 | { | |
9118 | int i; | |
9119 | ||
9120 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9121 | struct tp_led_table *t = &led_tables[i]; | |
9122 | if (t->state >= 0) | |
9123 | mute_led_on_off(t, t->state); | |
9124 | } | |
9125 | } | |
9126 | ||
420f9739 DH |
9127 | static struct ibm_struct mute_led_driver_data = { |
9128 | .name = "mute_led", | |
9129 | .exit = mute_led_exit, | |
119f4498 | 9130 | .resume = mute_led_resume, |
420f9739 DH |
9131 | }; |
9132 | ||
56b6aeb0 HMH |
9133 | /**************************************************************************** |
9134 | **************************************************************************** | |
9135 | * | |
9136 | * Infrastructure | |
9137 | * | |
9138 | **************************************************************************** | |
9139 | ****************************************************************************/ | |
9140 | ||
8b468c0c HMH |
9141 | /* |
9142 | * HKEY event callout for other subdrivers go here | |
9143 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
9144 | */ | |
9145 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
9146 | { | |
347a2686 HMH |
9147 | if (ibm_backlight_device) { |
9148 | switch (hkey_event) { | |
9149 | case TP_HKEY_EV_BRGHT_UP: | |
9150 | case TP_HKEY_EV_BRGHT_DOWN: | |
9151 | tpacpi_brightness_notify_change(); | |
9152 | } | |
9153 | } | |
0d204c34 HMH |
9154 | if (alsa_card) { |
9155 | switch (hkey_event) { | |
9156 | case TP_HKEY_EV_VOL_UP: | |
9157 | case TP_HKEY_EV_VOL_DOWN: | |
9158 | case TP_HKEY_EV_VOL_MUTE: | |
9159 | volume_alsa_notify_change(); | |
9160 | } | |
9161 | } | |
c685e20d HG |
9162 | if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) { |
9163 | enum led_brightness brightness; | |
9164 | ||
9165 | mutex_lock(&kbdlight_mutex); | |
9166 | ||
9167 | /* | |
9168 | * Check the brightness actually changed, setting the brightness | |
9169 | * through kbdlight_set_level() also triggers this event. | |
9170 | */ | |
9171 | brightness = kbdlight_sysfs_get(NULL); | |
9172 | if (kbdlight_brightness != brightness) { | |
9173 | kbdlight_brightness = brightness; | |
9174 | led_classdev_notify_brightness_hw_changed( | |
9175 | &tpacpi_led_kbdlight.led_classdev, brightness); | |
9176 | } | |
9177 | ||
9178 | mutex_unlock(&kbdlight_mutex); | |
9179 | } | |
8b468c0c HMH |
9180 | } |
9181 | ||
8b468c0c HMH |
9182 | static void hotkey_driver_event(const unsigned int scancode) |
9183 | { | |
67bcae6e | 9184 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
9185 | } |
9186 | ||
7fd40029 HMH |
9187 | /* sysfs name ---------------------------------------------------------- */ |
9188 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
9189 | struct device_attribute *attr, | |
9190 | char *buf) | |
9191 | { | |
e0c7dfe7 | 9192 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
9193 | } |
9194 | ||
5fb73bc2 | 9195 | static DEVICE_ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); |
7fd40029 HMH |
9196 | |
9197 | /* --------------------------------------------------------------------- */ | |
9198 | ||
56b6aeb0 | 9199 | /* /proc support */ |
94954cc6 | 9200 | static struct proc_dir_entry *proc_dir; |
16663a87 | 9201 | |
56b6aeb0 HMH |
9202 | /* |
9203 | * Module and infrastructure proble, init and exit handling | |
9204 | */ | |
1da177e4 | 9205 | |
90ab5ee9 | 9206 | static bool force_load; |
b21a15f6 | 9207 | |
fe08bc4b | 9208 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 9209 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 9210 | { |
a5763f22 | 9211 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 9212 | |
72a979f0 | 9213 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
9214 | } |
9215 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
9216 | ||
b21a15f6 HMH |
9217 | static void ibm_exit(struct ibm_struct *ibm) |
9218 | { | |
9219 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
9220 | ||
9221 | list_del_init(&ibm->all_drivers); | |
9222 | ||
9223 | if (ibm->flags.acpi_notify_installed) { | |
9224 | dbg_printk(TPACPI_DBG_EXIT, | |
9225 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
9226 | BUG_ON(!ibm->acpi); | |
9227 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
9228 | ibm->acpi->type, | |
9229 | dispatch_acpi_notify); | |
9230 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
9231 | } |
9232 | ||
9233 | if (ibm->flags.proc_created) { | |
9234 | dbg_printk(TPACPI_DBG_EXIT, | |
9235 | "%s: remove_proc_entry\n", ibm->name); | |
9236 | remove_proc_entry(ibm->name, proc_dir); | |
9237 | ibm->flags.proc_created = 0; | |
9238 | } | |
9239 | ||
9240 | if (ibm->flags.acpi_driver_registered) { | |
9241 | dbg_printk(TPACPI_DBG_EXIT, | |
9242 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
9243 | BUG_ON(!ibm->acpi); | |
9244 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
9245 | kfree(ibm->acpi->driver); | |
9246 | ibm->acpi->driver = NULL; | |
9247 | ibm->flags.acpi_driver_registered = 0; | |
9248 | } | |
9249 | ||
9250 | if (ibm->flags.init_called && ibm->exit) { | |
9251 | ibm->exit(); | |
9252 | ibm->flags.init_called = 0; | |
9253 | } | |
9254 | ||
9255 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
9256 | } | |
f74a27d4 | 9257 | |
a5763f22 | 9258 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
9259 | { |
9260 | int ret; | |
a5763f22 | 9261 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
9262 | struct proc_dir_entry *entry; |
9263 | ||
a5763f22 HMH |
9264 | BUG_ON(ibm == NULL); |
9265 | ||
9266 | INIT_LIST_HEAD(&ibm->all_drivers); | |
9267 | ||
92641177 | 9268 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
9269 | return 0; |
9270 | ||
fe08bc4b HMH |
9271 | dbg_printk(TPACPI_DBG_INIT, |
9272 | "probing for %s\n", ibm->name); | |
9273 | ||
a5763f22 HMH |
9274 | if (iibm->init) { |
9275 | ret = iibm->init(iibm); | |
5fba344c HMH |
9276 | if (ret > 0) |
9277 | return 0; /* probe failed */ | |
9278 | if (ret) | |
1da177e4 | 9279 | return ret; |
a5763f22 | 9280 | |
92641177 | 9281 | ibm->flags.init_called = 1; |
1da177e4 LT |
9282 | } |
9283 | ||
8d376cd6 HMH |
9284 | if (ibm->acpi) { |
9285 | if (ibm->acpi->hid) { | |
9286 | ret = register_tpacpi_subdriver(ibm); | |
9287 | if (ret) | |
9288 | goto err_out; | |
9289 | } | |
5fba344c | 9290 | |
8d376cd6 HMH |
9291 | if (ibm->acpi->notify) { |
9292 | ret = setup_acpi_notify(ibm); | |
9293 | if (ret == -ENODEV) { | |
0978e012 JP |
9294 | pr_notice("disabling subdriver %s\n", |
9295 | ibm->name); | |
8d376cd6 HMH |
9296 | ret = 0; |
9297 | goto err_out; | |
9298 | } | |
9299 | if (ret < 0) | |
9300 | goto err_out; | |
5fba344c | 9301 | } |
5fba344c HMH |
9302 | } |
9303 | ||
fe08bc4b HMH |
9304 | dbg_printk(TPACPI_DBG_INIT, |
9305 | "%s installed\n", ibm->name); | |
9306 | ||
78f81cc4 | 9307 | if (ibm->read) { |
d161a13f | 9308 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 9309 | |
b525c06c HMH |
9310 | if (!mode) |
9311 | mode = S_IRUGO; | |
887965e6 AD |
9312 | if (ibm->write) |
9313 | mode |= S_IWUSR; | |
9314 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
9315 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 9316 | if (!entry) { |
0978e012 | 9317 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
9318 | ret = -ENODEV; |
9319 | goto err_out; | |
78f81cc4 | 9320 | } |
92641177 | 9321 | ibm->flags.proc_created = 1; |
78f81cc4 | 9322 | } |
1da177e4 | 9323 | |
a5763f22 HMH |
9324 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
9325 | ||
1da177e4 | 9326 | return 0; |
5fba344c HMH |
9327 | |
9328 | err_out: | |
fe08bc4b HMH |
9329 | dbg_printk(TPACPI_DBG_INIT, |
9330 | "%s: at error exit path with result %d\n", | |
9331 | ibm->name, ret); | |
9332 | ||
5fba344c | 9333 | ibm_exit(ibm); |
72a979f0 | 9334 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
9335 | } |
9336 | ||
56b6aeb0 HMH |
9337 | /* Probing */ |
9338 | ||
050df107 HMH |
9339 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
9340 | { | |
9341 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
9342 | } | |
9343 | ||
72a979f0 | 9344 | static bool __pure __init tpacpi_is_valid_fw_id(const char * const s, |
050df107 HMH |
9345 | const char t) |
9346 | { | |
1b0eb5bc AL |
9347 | /* |
9348 | * Most models: xxyTkkWW (#.##c) | |
9349 | * Ancient 570/600 and -SL lacks (#.##c) | |
9350 | */ | |
9351 | if (s && strlen(s) >= 8 && | |
050df107 HMH |
9352 | tpacpi_is_fw_digit(s[0]) && |
9353 | tpacpi_is_fw_digit(s[1]) && | |
16a3d9f5 MI |
9354 | s[2] == t && |
9355 | (s[3] == 'T' || s[3] == 'N') && | |
050df107 | 9356 | tpacpi_is_fw_digit(s[4]) && |
1b0eb5bc AL |
9357 | tpacpi_is_fw_digit(s[5])) |
9358 | return true; | |
9359 | ||
9360 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
9361 | return s && strlen(s) >= 8 && | |
9362 | tpacpi_is_fw_digit(s[0]) && | |
9363 | tpacpi_is_fw_digit(s[1]) && | |
9364 | tpacpi_is_fw_digit(s[2]) && | |
9365 | s[3] == t && | |
9366 | (s[4] == 'T' || s[4] == 'N') && | |
9367 | tpacpi_is_fw_digit(s[5]) && | |
9368 | tpacpi_is_fw_digit(s[6]); | |
050df107 HMH |
9369 | } |
9370 | ||
bf20e740 HMH |
9371 | /* returns 0 - probe ok, or < 0 - probe error. |
9372 | * Probe ok doesn't mean thinkpad found. | |
9373 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
9374 | static int __must_check __init get_thinkpad_model_data( | |
9375 | struct thinkpad_id_data *tp) | |
1da177e4 | 9376 | { |
1855256c | 9377 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 9378 | char ec_fw_string[18]; |
bf20e740 | 9379 | char const *s; |
1da177e4 | 9380 | |
d5a2f2f1 | 9381 | if (!tp) |
bf20e740 | 9382 | return -EINVAL; |
d5a2f2f1 HMH |
9383 | |
9384 | memset(tp, 0, sizeof(*tp)); | |
9385 | ||
9386 | if (dmi_name_in_vendors("IBM")) | |
9387 | tp->vendor = PCI_VENDOR_ID_IBM; | |
9388 | else if (dmi_name_in_vendors("LENOVO")) | |
9389 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
9390 | else | |
bf20e740 | 9391 | return 0; |
d5a2f2f1 | 9392 | |
bf20e740 HMH |
9393 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
9394 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
9395 | if (s && !tp->bios_version_str) | |
9396 | return -ENOMEM; | |
050df107 HMH |
9397 | |
9398 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
16a3d9f5 MI |
9399 | if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') || |
9400 | tpacpi_is_valid_fw_id(tp->bios_version_str, 'C'))) | |
bf20e740 | 9401 | return 0; |
050df107 | 9402 | |
d5a2f2f1 HMH |
9403 | tp->bios_model = tp->bios_version_str[0] |
9404 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
9405 | tp->bios_release = (tp->bios_version_str[4] << 8) |
9406 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 9407 | |
56b6aeb0 HMH |
9408 | /* |
9409 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
9410 | * X32 or newer, all Z series; Some models must have an | |
9411 | * up-to-date BIOS or they will not be detected. | |
9412 | * | |
9413 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9414 | */ | |
9415 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
9416 | if (sscanf(dev->name, | |
9417 | "IBM ThinkPad Embedded Controller -[%17c", | |
9418 | ec_fw_string) == 1) { | |
9419 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
9420 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
9421 | |
9422 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
9423 | if (!tp->ec_version_str) |
9424 | return -ENOMEM; | |
050df107 HMH |
9425 | |
9426 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
9427 | tp->ec_model = ec_fw_string[0] | |
9428 | | (ec_fw_string[1] << 8); | |
9429 | tp->ec_release = (ec_fw_string[4] << 8) | |
9430 | | ec_fw_string[5]; | |
9431 | } else { | |
5cac62ac | 9432 | pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", |
0978e012 JP |
9433 | ec_fw_string); |
9434 | pr_notice("please report this to %s\n", | |
9435 | TPACPI_MAIL); | |
050df107 | 9436 | } |
d5a2f2f1 | 9437 | break; |
78f81cc4 | 9438 | } |
1da177e4 | 9439 | } |
d5a2f2f1 | 9440 | |
bf20e740 | 9441 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 9442 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
9443 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9444 | if (!tp->model_str) | |
9445 | return -ENOMEM; | |
a4f46bb9 MI |
9446 | } else { |
9447 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 9448 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
9449 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9450 | if (!tp->model_str) | |
9451 | return -ENOMEM; | |
9452 | } | |
d5a2f2f1 | 9453 | } |
8c74adbc | 9454 | |
bf20e740 HMH |
9455 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
9456 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
9457 | if (s && !tp->nummodel_str) | |
9458 | return -ENOMEM; | |
9459 | ||
9460 | return 0; | |
1da177e4 LT |
9461 | } |
9462 | ||
5fba344c HMH |
9463 | static int __init probe_for_thinkpad(void) |
9464 | { | |
9465 | int is_thinkpad; | |
9466 | ||
9467 | if (acpi_disabled) | |
9468 | return -ENODEV; | |
9469 | ||
e28393c0 HMH |
9470 | /* It would be dangerous to run the driver in this case */ |
9471 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
9472 | return -ENODEV; | |
9473 | ||
5fba344c HMH |
9474 | /* |
9475 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 9476 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 9477 | */ |
e675abaf HMH |
9478 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
9479 | (thinkpad_id.ec_model != 0) || | |
9480 | tpacpi_is_fw_known(); | |
5fba344c | 9481 | |
437e470c HMH |
9482 | /* The EC handler is required */ |
9483 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
9484 | if (!ec_handle) { |
9485 | if (is_thinkpad) | |
0978e012 | 9486 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
9487 | return -ENODEV; |
9488 | } | |
9489 | ||
0dcef77c HMH |
9490 | if (!is_thinkpad && !force_load) |
9491 | return -ENODEV; | |
9492 | ||
5fba344c HMH |
9493 | return 0; |
9494 | } | |
9495 | ||
7a43f788 HMH |
9496 | static void __init thinkpad_acpi_init_banner(void) |
9497 | { | |
0978e012 JP |
9498 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
9499 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 9500 | |
0978e012 | 9501 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
9502 | (thinkpad_id.bios_version_str) ? |
9503 | thinkpad_id.bios_version_str : "unknown", | |
9504 | (thinkpad_id.ec_version_str) ? | |
9505 | thinkpad_id.ec_version_str : "unknown"); | |
9506 | ||
9507 | BUG_ON(!thinkpad_id.vendor); | |
9508 | ||
9509 | if (thinkpad_id.model_str) | |
0978e012 | 9510 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
9511 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
9512 | "IBM" : ((thinkpad_id.vendor == | |
9513 | PCI_VENDOR_ID_LENOVO) ? | |
9514 | "Lenovo" : "Unknown vendor"), | |
9515 | thinkpad_id.model_str, | |
9516 | (thinkpad_id.nummodel_str) ? | |
9517 | thinkpad_id.nummodel_str : "unknown"); | |
9518 | } | |
5fba344c | 9519 | |
56b6aeb0 | 9520 | /* Module init, exit, parameters */ |
1da177e4 | 9521 | |
a5763f22 HMH |
9522 | static struct ibm_init_struct ibms_init[] __initdata = { |
9523 | { | |
a5763f22 HMH |
9524 | .data = &thinkpad_acpi_driver_data, |
9525 | }, | |
9526 | { | |
9527 | .init = hotkey_init, | |
9528 | .data = &hotkey_driver_data, | |
9529 | }, | |
9530 | { | |
9531 | .init = bluetooth_init, | |
9532 | .data = &bluetooth_driver_data, | |
9533 | }, | |
9534 | { | |
9535 | .init = wan_init, | |
9536 | .data = &wan_driver_data, | |
9537 | }, | |
0045c0aa HMH |
9538 | { |
9539 | .init = uwb_init, | |
9540 | .data = &uwb_driver_data, | |
9541 | }, | |
d7c1d17d | 9542 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
9543 | { |
9544 | .init = video_init, | |
b525c06c | 9545 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
9546 | .data = &video_driver_data, |
9547 | }, | |
d7c1d17d | 9548 | #endif |
bb28f3d5 PR |
9549 | { |
9550 | .init = kbdlight_init, | |
9551 | .data = &kbdlight_driver_data, | |
9552 | }, | |
a5763f22 HMH |
9553 | { |
9554 | .init = light_init, | |
9555 | .data = &light_driver_data, | |
9556 | }, | |
a5763f22 HMH |
9557 | { |
9558 | .init = cmos_init, | |
9559 | .data = &cmos_driver_data, | |
9560 | }, | |
9561 | { | |
9562 | .init = led_init, | |
9563 | .data = &led_driver_data, | |
9564 | }, | |
9565 | { | |
9566 | .init = beep_init, | |
9567 | .data = &beep_driver_data, | |
9568 | }, | |
9569 | { | |
9570 | .init = thermal_init, | |
9571 | .data = &thermal_driver_data, | |
9572 | }, | |
a5763f22 HMH |
9573 | { |
9574 | .init = brightness_init, | |
9575 | .data = &brightness_driver_data, | |
9576 | }, | |
9577 | { | |
329e4e18 | 9578 | .init = volume_init, |
a5763f22 HMH |
9579 | .data = &volume_driver_data, |
9580 | }, | |
9581 | { | |
9582 | .init = fan_init, | |
9583 | .data = &fan_driver_data, | |
9584 | }, | |
420f9739 DH |
9585 | { |
9586 | .init = mute_led_init, | |
9587 | .data = &mute_led_driver_data, | |
9588 | }, | |
a5763f22 HMH |
9589 | }; |
9590 | ||
3945ac36 | 9591 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
9592 | { |
9593 | unsigned int i; | |
a5763f22 | 9594 | struct ibm_struct *ibm; |
1da177e4 | 9595 | |
59f91ff1 HMH |
9596 | if (!kp || !kp->name || !val) |
9597 | return -EINVAL; | |
9598 | ||
a5763f22 HMH |
9599 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9600 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
9601 | WARN_ON(ibm == NULL); |
9602 | ||
9603 | if (!ibm || !ibm->name) | |
9604 | continue; | |
a5763f22 HMH |
9605 | |
9606 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
9607 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 9608 | return -ENOSPC; |
a5763f22 HMH |
9609 | strcpy(ibms_init[i].param, val); |
9610 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
9611 | return 0; |
9612 | } | |
a5763f22 | 9613 | } |
1da177e4 | 9614 | |
1da177e4 LT |
9615 | return -EINVAL; |
9616 | } | |
9617 | ||
b09c7225 | 9618 | module_param(experimental, int, 0444); |
f68080f8 | 9619 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 9620 | "Enables experimental features when non-zero"); |
56b6aeb0 | 9621 | |
132ce091 | 9622 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 9623 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 9624 | |
b09c7225 | 9625 | module_param(force_load, bool, 0444); |
f68080f8 | 9626 | MODULE_PARM_DESC(force_load, |
5cac62ac | 9627 | "Attempts to load the driver even on a mis-identified ThinkPad when true"); |
0dcef77c | 9628 | |
b09c7225 | 9629 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 9630 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 9631 | "Enables setting fan parameters features when true"); |
ecf2a80a | 9632 | |
b09c7225 | 9633 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 9634 | MODULE_PARM_DESC(brightness_mode, |
5cac62ac | 9635 | "Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 9636 | |
b09c7225 | 9637 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 9638 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 9639 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 9640 | |
ff850c33 | 9641 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
9642 | module_param_named(volume_mode, volume_mode, uint, 0444); |
9643 | MODULE_PARM_DESC(volume_mode, | |
5cac62ac | 9644 | "Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); |
329e4e18 | 9645 | |
a112ceee HMH |
9646 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
9647 | MODULE_PARM_DESC(volume_capabilities, | |
5cac62ac | 9648 | "Selects the mixer capabilites: 0=auto, 1=volume and mute, 2=mute only"); |
a112ceee | 9649 | |
c7ac6291 HMH |
9650 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
9651 | MODULE_PARM_DESC(volume_control, | |
5cac62ac | 9652 | "Enables software override for the console audio control when true"); |
c7ac6291 | 9653 | |
9a417ec0 AL |
9654 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
9655 | MODULE_PARM_DESC(software_mute, | |
9656 | "Request full software mute control"); | |
9657 | ||
0d204c34 HMH |
9658 | /* ALSA module API parameters */ |
9659 | module_param_named(index, alsa_index, int, 0444); | |
9660 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
9661 | module_param_named(id, alsa_id, charp, 0444); | |
9662 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
9663 | module_param_named(enable, alsa_enable, bool, 0444); | |
9664 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 9665 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 9666 | |
9b4bbbd2 | 9667 | /* The module parameter can't be read back, that's why 0 is used here */ |
e0c7dfe7 | 9668 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 9669 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5cac62ac | 9670 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") |
1da177e4 | 9671 | |
e0c7dfe7 HMH |
9672 | TPACPI_PARAM(hotkey); |
9673 | TPACPI_PARAM(bluetooth); | |
9674 | TPACPI_PARAM(video); | |
9675 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
9676 | TPACPI_PARAM(cmos); |
9677 | TPACPI_PARAM(led); | |
9678 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
9679 | TPACPI_PARAM(brightness); |
9680 | TPACPI_PARAM(volume); | |
9681 | TPACPI_PARAM(fan); | |
78f81cc4 | 9682 | |
a73f3091 | 9683 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 9684 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
9685 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
9686 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
9687 | MODULE_PARM_DESC(wlsw_state, | |
9688 | "Initial state of the emulated WLSW switch"); | |
9689 | ||
b09c7225 | 9690 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
9691 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
9692 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
9693 | MODULE_PARM_DESC(bluetooth_state, | |
9694 | "Initial state of the emulated bluetooth switch"); | |
9695 | ||
b09c7225 | 9696 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
9697 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
9698 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
9699 | MODULE_PARM_DESC(wwan_state, | |
9700 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 9701 | |
b09c7225 | 9702 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
9703 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
9704 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
9705 | MODULE_PARM_DESC(uwb_state, | |
9706 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
9707 | #endif |
9708 | ||
b21a15f6 HMH |
9709 | static void thinkpad_acpi_module_exit(void) |
9710 | { | |
9711 | struct ibm_struct *ibm, *itmp; | |
9712 | ||
9713 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
9714 | ||
9715 | list_for_each_entry_safe_reverse(ibm, itmp, | |
9716 | &tpacpi_all_drivers, | |
9717 | all_drivers) { | |
9718 | ibm_exit(ibm); | |
9719 | } | |
9720 | ||
9721 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
9722 | ||
9723 | if (tpacpi_inputdev) { | |
9724 | if (tp_features.input_device_registered) | |
9725 | input_unregister_device(tpacpi_inputdev); | |
9726 | else | |
9727 | input_free_device(tpacpi_inputdev); | |
00d39597 | 9728 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
9729 | } |
9730 | ||
9731 | if (tpacpi_hwmon) | |
9732 | hwmon_device_unregister(tpacpi_hwmon); | |
9733 | ||
9734 | if (tp_features.sensors_pdev_attrs_registered) | |
5fb73bc2 | 9735 | device_remove_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
b21a15f6 HMH |
9736 | if (tpacpi_sensors_pdev) |
9737 | platform_device_unregister(tpacpi_sensors_pdev); | |
9738 | if (tpacpi_pdev) | |
9739 | platform_device_unregister(tpacpi_pdev); | |
9740 | ||
9741 | if (tp_features.sensors_pdrv_attrs_registered) | |
9742 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
9743 | if (tp_features.platform_drv_attrs_registered) | |
9744 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
9745 | ||
9746 | if (tp_features.sensors_pdrv_registered) | |
9747 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
9748 | ||
9749 | if (tp_features.platform_drv_registered) | |
9750 | platform_driver_unregister(&tpacpi_pdriver); | |
9751 | ||
9752 | if (proc_dir) | |
e0c7dfe7 | 9753 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9754 | |
e0e3c061 HMH |
9755 | if (tpacpi_wq) |
9756 | destroy_workqueue(tpacpi_wq); | |
9757 | ||
b21a15f6 HMH |
9758 | kfree(thinkpad_id.bios_version_str); |
9759 | kfree(thinkpad_id.ec_version_str); | |
9760 | kfree(thinkpad_id.model_str); | |
d2be15bd | 9761 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
9762 | } |
9763 | ||
f74a27d4 | 9764 | |
1def7115 | 9765 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9766 | { |
9767 | int ret, i; | |
9768 | ||
8fef502e HMH |
9769 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9770 | ||
54ae1501 | 9771 | /* Driver-level probe */ |
d5a2f2f1 | 9772 | |
bf20e740 HMH |
9773 | ret = get_thinkpad_model_data(&thinkpad_id); |
9774 | if (ret) { | |
0978e012 | 9775 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
9776 | thinkpad_acpi_module_exit(); |
9777 | return ret; | |
9778 | } | |
5fba344c | 9779 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9780 | if (ret) { |
9781 | thinkpad_acpi_module_exit(); | |
5fba344c | 9782 | return ret; |
d5a2f2f1 | 9783 | } |
1da177e4 | 9784 | |
54ae1501 | 9785 | /* Driver initialization */ |
d5a2f2f1 | 9786 | |
7a43f788 HMH |
9787 | thinkpad_acpi_init_banner(); |
9788 | tpacpi_check_outdated_fw(); | |
9789 | ||
e0c7dfe7 HMH |
9790 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9791 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9792 | |
e0e3c061 HMH |
9793 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9794 | if (!tpacpi_wq) { | |
9795 | thinkpad_acpi_module_exit(); | |
9796 | return -ENOMEM; | |
9797 | } | |
9798 | ||
e0c7dfe7 | 9799 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9800 | if (!proc_dir) { |
0978e012 | 9801 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 9802 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9803 | return -ENODEV; |
9804 | } | |
78f81cc4 | 9805 | |
54ae1501 HMH |
9806 | ret = platform_driver_register(&tpacpi_pdriver); |
9807 | if (ret) { | |
0978e012 | 9808 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
9809 | thinkpad_acpi_module_exit(); |
9810 | return ret; | |
9811 | } | |
ac36393d HMH |
9812 | tp_features.platform_drv_registered = 1; |
9813 | ||
7fd40029 HMH |
9814 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9815 | if (ret) { | |
0978e012 | 9816 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
9817 | thinkpad_acpi_module_exit(); |
9818 | return ret; | |
9819 | } | |
9820 | tp_features.sensors_pdrv_registered = 1; | |
9821 | ||
176750d6 | 9822 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9823 | if (!ret) { |
9824 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9825 | ret = tpacpi_create_driver_attributes( |
9826 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9827 | } |
176750d6 | 9828 | if (ret) { |
0978e012 | 9829 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
9830 | thinkpad_acpi_module_exit(); |
9831 | return ret; | |
9832 | } | |
2369cc94 | 9833 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9834 | |
54ae1501 HMH |
9835 | |
9836 | /* Device initialization */ | |
e0c7dfe7 | 9837 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9838 | NULL, 0); |
9839 | if (IS_ERR(tpacpi_pdev)) { | |
9840 | ret = PTR_ERR(tpacpi_pdev); | |
9841 | tpacpi_pdev = NULL; | |
0978e012 | 9842 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
9843 | thinkpad_acpi_module_exit(); |
9844 | return ret; | |
9845 | } | |
7fd40029 | 9846 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9847 | TPACPI_HWMON_DRVR_NAME, |
9848 | -1, NULL, 0); | |
7fd40029 HMH |
9849 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9850 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9851 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 9852 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
9853 | thinkpad_acpi_module_exit(); |
9854 | return ret; | |
9855 | } | |
5fb73bc2 | 9856 | ret = device_create_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
7fd40029 | 9857 | if (ret) { |
0978e012 | 9858 | pr_err("unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9859 | thinkpad_acpi_module_exit(); |
9860 | return ret; | |
9861 | } | |
9862 | tp_features.sensors_pdev_attrs_registered = 1; | |
9863 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9864 | if (IS_ERR(tpacpi_hwmon)) { |
9865 | ret = PTR_ERR(tpacpi_hwmon); | |
9866 | tpacpi_hwmon = NULL; | |
0978e012 | 9867 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
9868 | thinkpad_acpi_module_exit(); |
9869 | return ret; | |
9870 | } | |
8523ed6f | 9871 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9872 | tpacpi_inputdev = input_allocate_device(); |
9873 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
9874 | thinkpad_acpi_module_exit(); |
9875 | return -ENOMEM; | |
9876 | } else { | |
9877 | /* Prepare input device, but don't register */ | |
9878 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9879 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9880 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9881 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9882 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9883 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9884 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9885 | } |
77775838 HMH |
9886 | |
9887 | /* Init subdriver dependencies */ | |
9888 | tpacpi_detect_brightness_capabilities(); | |
9889 | ||
9890 | /* Init subdrivers */ | |
a5763f22 HMH |
9891 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9892 | ret = ibm_init(&ibms_init[i]); | |
9893 | if (ret >= 0 && *ibms_init[i].param) | |
9894 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9895 | if (ret < 0) { |
1def7115 | 9896 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9897 | return ret; |
9898 | } | |
9899 | } | |
b589ea4c HMH |
9900 | |
9901 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9902 | ||
7f5d1cd6 HMH |
9903 | ret = input_register_device(tpacpi_inputdev); |
9904 | if (ret < 0) { | |
0978e012 | 9905 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
9906 | thinkpad_acpi_module_exit(); |
9907 | return ret; | |
9908 | } else { | |
9909 | tp_features.input_device_registered = 1; | |
9910 | } | |
1da177e4 LT |
9911 | |
9912 | return 0; | |
9913 | } | |
9914 | ||
95e57ab2 HMH |
9915 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9916 | ||
922fe097 HMH |
9917 | /* |
9918 | * This will autoload the driver in almost every ThinkPad | |
9919 | * in widespread use. | |
9920 | * | |
9921 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9922 | * the HKEY event interface. | |
9923 | */ | |
9924 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9925 | ||
f68080f8 HMH |
9926 | /* |
9927 | * DMI matching for module autoloading | |
9928 | * | |
9929 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9930 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9931 | * | |
9932 | * Only models listed in thinkwiki will be supported, so add yours | |
9933 | * if it is not there yet. | |
9934 | */ | |
9935 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9936 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9937 | |
f68080f8 HMH |
9938 | /* Ancient thinkpad BIOSes have to be identified by |
9939 | * BIOS type or model number, and there are far less | |
9940 | * BIOS types than model numbers... */ | |
922fe097 | 9941 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9942 | |
f68f53a2 HMH |
9943 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9944 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9945 | MODULE_DESCRIPTION(TPACPI_DESC); |
9946 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9947 | MODULE_LICENSE("GPL"); |
9948 | ||
1def7115 HMH |
9949 | module_init(thinkpad_acpi_module_init); |
9950 | module_exit(thinkpad_acpi_module_exit); |