Commit | Line | Data |
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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> | |
8b48463f | 85 | #include <asm/uaccess.h> |
0c78039f HMH |
86 | |
87 | /* ThinkPad CMOS commands */ | |
88 | #define TP_CMOS_VOLUME_DOWN 0 | |
89 | #define TP_CMOS_VOLUME_UP 1 | |
90 | #define TP_CMOS_VOLUME_MUTE 2 | |
91 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
92 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
93 | #define TP_CMOS_THINKLIGHT_ON 12 |
94 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
95 | |
96 | /* NVRAM Addresses */ | |
97 | enum tp_nvram_addr { | |
98 | TP_NVRAM_ADDR_HK2 = 0x57, | |
99 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
100 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
101 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
102 | TP_NVRAM_ADDR_MIXER = 0x60, | |
103 | }; | |
104 | ||
105 | /* NVRAM bit masks */ | |
106 | enum { | |
107 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
108 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
109 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
110 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
111 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
112 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
113 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
114 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
115 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
116 | TP_NVRAM_MASK_MUTE = 0x40, | |
117 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
118 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
119 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
120 | }; | |
121 | ||
5d756db9 HMH |
122 | /* Misc NVRAM-related */ |
123 | enum { | |
124 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
125 | }; | |
126 | ||
b21a15f6 | 127 | /* ACPI HIDs */ |
9fbdaeb4 MI |
128 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
129 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
437e470c | 130 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
131 | |
132 | /* Input IDs */ | |
133 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
134 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
135 | ||
153f8220 HMH |
136 | /* ACPI \WGSV commands */ |
137 | enum { | |
138 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
139 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
140 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
141 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
142 | }; | |
143 | ||
144 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
145 | enum { | |
146 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
147 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
148 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
149 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
150 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
151 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
152 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
153 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
154 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
155 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
156 | }; | |
b21a15f6 | 157 | |
67bcae6e HMH |
158 | /* HKEY events */ |
159 | enum tpacpi_hkey_event_t { | |
160 | /* Hotkey-related */ | |
161 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
162 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
163 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
164 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
165 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
166 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
167 | ||
168 | /* Reasons for waking up from S3/S4 */ | |
169 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
170 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
171 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
172 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
173 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
174 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
175 | ||
176 | /* Auto-sleep after eject request */ | |
177 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
178 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
179 | ||
180 | /* Misc bay events */ | |
181 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
182 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
183 | or port replicator */ | |
184 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
185 | dock or port replicator */ | |
67bcae6e HMH |
186 | |
187 | /* User-interface events */ | |
188 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
189 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
190 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
191 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
192 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ | |
193 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
194 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
195 | ||
2d43f671 HMH |
196 | /* Key-related user-interface events */ |
197 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
198 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
199 | ||
67bcae6e HMH |
200 | /* Thermal events */ |
201 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
202 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
203 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
204 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
205 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
206 | ||
6f62bc3e RH |
207 | /* AC-related events */ |
208 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 209 | |
67bcae6e HMH |
210 | /* Misc */ |
211 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
212 | }; | |
213 | ||
b21a15f6 HMH |
214 | /**************************************************************************** |
215 | * Main driver | |
216 | */ | |
217 | ||
e0c7dfe7 HMH |
218 | #define TPACPI_NAME "thinkpad" |
219 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
220 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
221 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
222 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 223 | |
e0c7dfe7 HMH |
224 | #define TPACPI_PROC_DIR "ibm" |
225 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
226 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 227 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 228 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 229 | |
95e57ab2 | 230 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 231 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 232 | |
e0c7dfe7 | 233 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 234 | |
7ff8d62f | 235 | /* Debugging printk groups */ |
0c78039f | 236 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 237 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
238 | #define TPACPI_DBG_INIT 0x0001 |
239 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 240 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 241 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 242 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 243 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 244 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 245 | |
35ff8b9f HMH |
246 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
247 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
248 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 249 | |
0c78039f HMH |
250 | |
251 | /**************************************************************************** | |
b21a15f6 | 252 | * Driver-wide structs and misc. variables |
0c78039f HMH |
253 | */ |
254 | ||
255 | struct ibm_struct; | |
256 | ||
257 | struct tp_acpi_drv_struct { | |
258 | const struct acpi_device_id *hid; | |
259 | struct acpi_driver *driver; | |
260 | ||
261 | void (*notify) (struct ibm_struct *, u32); | |
262 | acpi_handle *handle; | |
263 | u32 type; | |
264 | struct acpi_device *device; | |
265 | }; | |
266 | ||
267 | struct ibm_struct { | |
268 | char *name; | |
269 | ||
887965e6 | 270 | int (*read) (struct seq_file *); |
0c78039f HMH |
271 | int (*write) (char *); |
272 | void (*exit) (void); | |
273 | void (*resume) (void); | |
fd3c3a42 | 274 | void (*suspend) (void); |
90d9d3c7 | 275 | void (*shutdown) (void); |
0c78039f HMH |
276 | |
277 | struct list_head all_drivers; | |
278 | ||
279 | struct tp_acpi_drv_struct *acpi; | |
280 | ||
281 | struct { | |
282 | u8 acpi_driver_registered:1; | |
283 | u8 acpi_notify_installed:1; | |
284 | u8 proc_created:1; | |
285 | u8 init_called:1; | |
286 | u8 experimental:1; | |
287 | } flags; | |
288 | }; | |
289 | ||
290 | struct ibm_init_struct { | |
291 | char param[32]; | |
292 | ||
293 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 294 | umode_t base_procfs_mode; |
0c78039f HMH |
295 | struct ibm_struct *data; |
296 | }; | |
297 | ||
298 | static struct { | |
0c78039f HMH |
299 | u32 bluetooth:1; |
300 | u32 hotkey:1; | |
301 | u32 hotkey_mask:1; | |
302 | u32 hotkey_wlsw:1; | |
6c231bd5 | 303 | u32 hotkey_tablet:1; |
0c78039f HMH |
304 | u32 light:1; |
305 | u32 light_status:1; | |
b5972796 | 306 | u32 bright_acpimode:1; |
77775838 | 307 | u32 bright_unkfw:1; |
0c78039f | 308 | u32 wan:1; |
0045c0aa | 309 | u32 uwb:1; |
0c78039f | 310 | u32 fan_ctrl_status_undef:1; |
d7377247 | 311 | u32 second_fan:1; |
60201732 | 312 | u32 beep_needs_two_args:1; |
a112ceee | 313 | u32 mixer_no_level_control:1; |
0c78039f HMH |
314 | u32 input_device_registered:1; |
315 | u32 platform_drv_registered:1; | |
316 | u32 platform_drv_attrs_registered:1; | |
317 | u32 sensors_pdrv_registered:1; | |
318 | u32 sensors_pdrv_attrs_registered:1; | |
319 | u32 sensors_pdev_attrs_registered:1; | |
320 | u32 hotkey_poll_active:1; | |
321 | } tp_features; | |
322 | ||
92889022 HMH |
323 | static struct { |
324 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 325 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
326 | } tp_warned; |
327 | ||
0c78039f HMH |
328 | struct thinkpad_id_data { |
329 | unsigned int vendor; /* ThinkPad vendor: | |
330 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
331 | ||
332 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
333 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
334 | ||
050df107 | 335 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 336 | u16 ec_model; |
050df107 HMH |
337 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
338 | u16 ec_release; | |
0c78039f | 339 | |
8c74adbc HMH |
340 | char *model_str; /* ThinkPad T43 */ |
341 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 342 | }; |
0c78039f HMH |
343 | static struct thinkpad_id_data thinkpad_id; |
344 | ||
8fef502e HMH |
345 | static enum { |
346 | TPACPI_LIFE_INIT = 0, | |
347 | TPACPI_LIFE_RUNNING, | |
348 | TPACPI_LIFE_EXITING, | |
349 | } tpacpi_lifecycle; | |
350 | ||
b21a15f6 HMH |
351 | static int experimental; |
352 | static u32 dbg_level; | |
353 | ||
e0e3c061 HMH |
354 | static struct workqueue_struct *tpacpi_wq; |
355 | ||
75bd3bf2 HMH |
356 | enum led_status_t { |
357 | TPACPI_LED_OFF = 0, | |
358 | TPACPI_LED_ON, | |
359 | TPACPI_LED_BLINK, | |
360 | }; | |
361 | ||
4fa6811b HMH |
362 | /* Special LED class that can defer work */ |
363 | struct tpacpi_led_classdev { | |
364 | struct led_classdev led_classdev; | |
365 | struct work_struct work; | |
75bd3bf2 | 366 | enum led_status_t new_state; |
edf2d778 | 367 | int led; |
4fa6811b HMH |
368 | }; |
369 | ||
77775838 HMH |
370 | /* brightness level capabilities */ |
371 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
372 | ||
a73f3091 HMH |
373 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
374 | static int dbg_wlswemul; | |
90ab5ee9 | 375 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 376 | static int dbg_bluetoothemul; |
90ab5ee9 | 377 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 378 | static int dbg_wwanemul; |
90ab5ee9 | 379 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 380 | static int dbg_uwbemul; |
90ab5ee9 | 381 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
382 | #endif |
383 | ||
384 | ||
3dcc2c3b HMH |
385 | /************************************************************************* |
386 | * Debugging helpers | |
387 | */ | |
388 | ||
0978e012 JP |
389 | #define dbg_printk(a_dbg_level, format, arg...) \ |
390 | do { \ | |
391 | if (dbg_level & (a_dbg_level)) \ | |
392 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
393 | __func__, ##arg); \ | |
394 | } while (0) | |
3dcc2c3b HMH |
395 | |
396 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
397 | #define vdbg_printk dbg_printk | |
398 | static const char *str_supported(int is_supported); | |
399 | #else | |
0978e012 JP |
400 | static inline const char *str_supported(int is_supported) { return ""; } |
401 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
402 | no_printk(format, ##arg) | |
3dcc2c3b HMH |
403 | #endif |
404 | ||
73a94d86 HMH |
405 | static void tpacpi_log_usertask(const char * const what) |
406 | { | |
0978e012 JP |
407 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
408 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
409 | } |
410 | ||
0978e012 JP |
411 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
412 | do { \ | |
413 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
414 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
415 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
416 | what, task_tgid_vnr(current), ## arg); \ | |
417 | } \ | |
418 | } while (0) | |
3dcc2c3b | 419 | |
7d95a3d5 HMH |
420 | /* |
421 | * Quirk handling helpers | |
422 | * | |
423 | * ThinkPad IDs and versions seen in the field so far | |
424 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
425 | * | |
426 | * We use values well outside that range as specials. | |
427 | */ | |
428 | ||
429 | #define TPACPI_MATCH_ANY 0xffffU | |
430 | #define TPACPI_MATCH_UNKNOWN 0U | |
431 | ||
432 | /* TPID('1', 'Y') == 0x5931 */ | |
433 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
434 | ||
435 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
436 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
437 | .bios = TPID(__id1, __id2), \ | |
438 | .ec = TPACPI_MATCH_ANY, \ | |
439 | .quirks = (__quirk) } | |
440 | ||
441 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
442 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
443 | .bios = TPID(__id1, __id2), \ | |
444 | .ec = TPACPI_MATCH_ANY, \ | |
445 | .quirks = (__quirk) } | |
446 | ||
a112ceee HMH |
447 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
448 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
449 | .bios = TPACPI_MATCH_ANY, \ | |
450 | .ec = TPID(__id1, __id2), \ | |
451 | .quirks = (__quirk) } | |
452 | ||
7d95a3d5 HMH |
453 | struct tpacpi_quirk { |
454 | unsigned int vendor; | |
455 | u16 bios; | |
456 | u16 ec; | |
457 | unsigned long quirks; | |
458 | }; | |
459 | ||
460 | /** | |
461 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
462 | * @qlist: array of &struct tpacpi_quirk | |
463 | * @qlist_size: number of elements in @qlist | |
464 | * | |
465 | * Iterates over a quirks list until one is found that matches the | |
466 | * ThinkPad's vendor, BIOS and EC model. | |
467 | * | |
468 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
469 | * the matching &struct tpacpi_quirk entry. | |
470 | * | |
471 | * The match criteria is: vendor, ec and bios much match. | |
472 | */ | |
473 | static unsigned long __init tpacpi_check_quirks( | |
474 | const struct tpacpi_quirk *qlist, | |
475 | unsigned int qlist_size) | |
476 | { | |
477 | while (qlist_size) { | |
478 | if ((qlist->vendor == thinkpad_id.vendor || | |
479 | qlist->vendor == TPACPI_MATCH_ANY) && | |
480 | (qlist->bios == thinkpad_id.bios_model || | |
481 | qlist->bios == TPACPI_MATCH_ANY) && | |
482 | (qlist->ec == thinkpad_id.ec_model || | |
483 | qlist->ec == TPACPI_MATCH_ANY)) | |
484 | return qlist->quirks; | |
485 | ||
486 | qlist_size--; | |
487 | qlist++; | |
488 | } | |
489 | return 0; | |
490 | } | |
491 | ||
e28393c0 HMH |
492 | static inline bool __pure __init tpacpi_is_lenovo(void) |
493 | { | |
494 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
495 | } | |
496 | ||
497 | static inline bool __pure __init tpacpi_is_ibm(void) | |
498 | { | |
499 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
500 | } | |
7d95a3d5 | 501 | |
56b6aeb0 HMH |
502 | /**************************************************************************** |
503 | **************************************************************************** | |
504 | * | |
505 | * ACPI Helpers and device model | |
506 | * | |
507 | **************************************************************************** | |
508 | ****************************************************************************/ | |
509 | ||
510 | /************************************************************************* | |
511 | * ACPI basic handles | |
512 | */ | |
1da177e4 | 513 | |
94954cc6 | 514 | static acpi_handle root_handle; |
437e470c | 515 | static acpi_handle ec_handle; |
1da177e4 | 516 | |
e0c7dfe7 | 517 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 518 | static acpi_handle object##_handle; \ |
3bd01896 | 519 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
520 | &parent##_handle; \ |
521 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 522 | |
e0c7dfe7 HMH |
523 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
524 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 525 | |
35ff8b9f HMH |
526 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
527 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
528 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
529 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 530 | ); /* all others */ |
78f81cc4 | 531 | |
e0c7dfe7 | 532 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
533 | "^HKEY", /* R30, R31 */ |
534 | "HKEY", /* all others */ | |
56b6aeb0 | 535 | ); /* 570 */ |
78f81cc4 | 536 | |
56b6aeb0 HMH |
537 | /************************************************************************* |
538 | * ACPI helpers | |
a8b7a662 HMH |
539 | */ |
540 | ||
1da177e4 | 541 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 542 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
543 | { |
544 | char *fmt0 = fmt; | |
78f81cc4 | 545 | struct acpi_object_list params; |
e0c7dfe7 | 546 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
547 | struct acpi_buffer result, *resultp; |
548 | union acpi_object out_obj; | |
549 | acpi_status status; | |
550 | va_list ap; | |
551 | char res_type; | |
552 | int success; | |
553 | int quiet; | |
1da177e4 LT |
554 | |
555 | if (!*fmt) { | |
0978e012 | 556 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
557 | return 0; |
558 | } | |
559 | ||
560 | if (*fmt == 'q') { | |
561 | quiet = 1; | |
562 | fmt++; | |
563 | } else | |
564 | quiet = 0; | |
565 | ||
566 | res_type = *(fmt++); | |
567 | ||
568 | params.count = 0; | |
569 | params.pointer = &in_objs[0]; | |
570 | ||
571 | va_start(ap, fmt); | |
572 | while (*fmt) { | |
573 | char c = *(fmt++); | |
574 | switch (c) { | |
575 | case 'd': /* int */ | |
576 | in_objs[params.count].integer.value = va_arg(ap, int); | |
577 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
578 | break; | |
78f81cc4 | 579 | /* add more types as needed */ |
1da177e4 | 580 | default: |
0978e012 | 581 | pr_err("acpi_evalf() called " |
1da177e4 | 582 | "with invalid format character '%c'\n", c); |
21365851 | 583 | va_end(ap); |
1da177e4 LT |
584 | return 0; |
585 | } | |
586 | } | |
587 | va_end(ap); | |
588 | ||
78f81cc4 BD |
589 | if (res_type != 'v') { |
590 | result.length = sizeof(out_obj); | |
591 | result.pointer = &out_obj; | |
592 | resultp = &result; | |
593 | } else | |
594 | resultp = NULL; | |
1da177e4 | 595 | |
78f81cc4 | 596 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
597 | |
598 | switch (res_type) { | |
78f81cc4 | 599 | case 'd': /* int */ |
263f4a30 HMH |
600 | success = (status == AE_OK && |
601 | out_obj.type == ACPI_TYPE_INTEGER); | |
602 | if (success && res) | |
eceeb437 | 603 | *res = out_obj.integer.value; |
1da177e4 | 604 | break; |
78f81cc4 | 605 | case 'v': /* void */ |
1da177e4 LT |
606 | success = status == AE_OK; |
607 | break; | |
78f81cc4 | 608 | /* add more types as needed */ |
1da177e4 | 609 | default: |
0978e012 | 610 | pr_err("acpi_evalf() called " |
1da177e4 LT |
611 | "with invalid format character '%c'\n", res_type); |
612 | return 0; | |
613 | } | |
614 | ||
56b6aeb0 | 615 | if (!success && !quiet) |
0978e012 | 616 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 617 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
618 | |
619 | return success; | |
620 | } | |
621 | ||
35ff8b9f | 622 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
623 | { |
624 | int v; | |
625 | ||
626 | if (ecrd_handle) { | |
627 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
628 | return 0; | |
629 | *p = v; | |
630 | } else { | |
631 | if (ec_read(i, p) < 0) | |
632 | return 0; | |
633 | } | |
634 | ||
635 | return 1; | |
636 | } | |
637 | ||
638 | static int acpi_ec_write(int i, u8 v) | |
639 | { | |
640 | if (ecwr_handle) { | |
641 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
642 | return 0; | |
643 | } else { | |
644 | if (ec_write(i, v) < 0) | |
645 | return 0; | |
646 | } | |
647 | ||
648 | return 1; | |
649 | } | |
650 | ||
c9bea99c HMH |
651 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
652 | { | |
653 | if (!cmos_handle) | |
654 | return -ENXIO; | |
655 | ||
656 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
657 | return -EIO; | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
56b6aeb0 HMH |
662 | /************************************************************************* |
663 | * ACPI device model | |
664 | */ | |
665 | ||
35ff8b9f HMH |
666 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
667 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 668 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 669 | |
ef07a5ab HMH |
670 | static void __init drv_acpi_handle_init(const char *name, |
671 | acpi_handle *handle, const acpi_handle parent, | |
672 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
673 | { |
674 | int i; | |
675 | acpi_status status; | |
676 | ||
5ae930e6 HMH |
677 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
678 | name); | |
679 | ||
56b6aeb0 HMH |
680 | for (i = 0; i < num_paths; i++) { |
681 | status = acpi_get_handle(parent, paths[i], handle); | |
682 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
683 | dbg_printk(TPACPI_DBG_INIT, |
684 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 685 | paths[i], name); |
56b6aeb0 HMH |
686 | return; |
687 | } | |
688 | } | |
689 | ||
5ae930e6 HMH |
690 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
691 | name); | |
56b6aeb0 HMH |
692 | *handle = NULL; |
693 | } | |
694 | ||
437e470c HMH |
695 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
696 | u32 level, void *context, void **return_value) | |
697 | { | |
46445b6b AL |
698 | struct acpi_device *dev; |
699 | if (!strcmp(context, "video")) { | |
700 | if (acpi_bus_get_device(handle, &dev)) | |
701 | return AE_OK; | |
702 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
703 | return AE_OK; | |
704 | } | |
705 | ||
437e470c HMH |
706 | *(acpi_handle *)return_value = handle; |
707 | ||
708 | return AE_CTRL_TERMINATE; | |
709 | } | |
710 | ||
711 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
712 | const char *hid, | |
713 | acpi_handle *handle) | |
714 | { | |
715 | acpi_status status; | |
716 | acpi_handle device_found; | |
717 | ||
46445b6b | 718 | BUG_ON(!name || !handle); |
437e470c HMH |
719 | vdbg_printk(TPACPI_DBG_INIT, |
720 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 721 | name, hid ? hid : "NULL"); |
437e470c HMH |
722 | |
723 | memset(&device_found, 0, sizeof(device_found)); | |
724 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
725 | (void *)name, &device_found); | |
726 | ||
727 | *handle = NULL; | |
728 | ||
729 | if (ACPI_SUCCESS(status)) { | |
730 | *handle = device_found; | |
731 | dbg_printk(TPACPI_DBG_INIT, | |
732 | "Found ACPI handle for %s\n", name); | |
733 | } else { | |
734 | vdbg_printk(TPACPI_DBG_INIT, | |
735 | "Could not locate an ACPI handle for %s: %s\n", | |
736 | name, acpi_format_exception(status)); | |
737 | } | |
738 | } | |
739 | ||
8d376cd6 | 740 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
741 | { |
742 | struct ibm_struct *ibm = data; | |
743 | ||
8fef502e HMH |
744 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
745 | return; | |
746 | ||
8d376cd6 | 747 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
748 | return; |
749 | ||
8d376cd6 | 750 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
751 | } |
752 | ||
8d376cd6 | 753 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
754 | { |
755 | acpi_status status; | |
5ae930e6 | 756 | int rc; |
56b6aeb0 | 757 | |
8d376cd6 HMH |
758 | BUG_ON(!ibm->acpi); |
759 | ||
760 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
761 | return 0; |
762 | ||
5ae930e6 | 763 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
764 | "setting up ACPI notify for %s\n", ibm->name); |
765 | ||
5ae930e6 HMH |
766 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
767 | if (rc < 0) { | |
0978e012 | 768 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
769 | return -ENODEV; |
770 | } | |
771 | ||
db89b4f0 | 772 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 773 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 774 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 775 | ibm->name); |
56b6aeb0 | 776 | |
8d376cd6 HMH |
777 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
778 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
779 | if (ACPI_FAILURE(status)) { |
780 | if (status == AE_ALREADY_EXISTS) { | |
0978e012 JP |
781 | pr_notice("another device driver is already " |
782 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 783 | } else { |
0978e012 | 784 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 785 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
786 | } |
787 | return -ENODEV; | |
788 | } | |
8d376cd6 | 789 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
790 | return 0; |
791 | } | |
792 | ||
8d376cd6 | 793 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
794 | { |
795 | return 0; | |
796 | } | |
797 | ||
6700121b | 798 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 799 | { |
5ae930e6 | 800 | int rc; |
56b6aeb0 | 801 | |
fe08bc4b HMH |
802 | dbg_printk(TPACPI_DBG_INIT, |
803 | "registering %s as an ACPI driver\n", ibm->name); | |
804 | ||
8d376cd6 HMH |
805 | BUG_ON(!ibm->acpi); |
806 | ||
807 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
808 | if (!ibm->acpi->driver) { | |
0978e012 | 809 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 810 | return -ENOMEM; |
56b6aeb0 HMH |
811 | } |
812 | ||
e0c7dfe7 | 813 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 814 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 815 | |
8d376cd6 | 816 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 817 | |
5ae930e6 HMH |
818 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
819 | if (rc < 0) { | |
0978e012 | 820 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 821 | ibm->name, rc); |
8d376cd6 HMH |
822 | kfree(ibm->acpi->driver); |
823 | ibm->acpi->driver = NULL; | |
5ae930e6 | 824 | } else if (!rc) |
8d376cd6 | 825 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 826 | |
5ae930e6 | 827 | return rc; |
56b6aeb0 HMH |
828 | } |
829 | ||
830 | ||
831 | /**************************************************************************** | |
832 | **************************************************************************** | |
833 | * | |
834 | * Procfs Helpers | |
835 | * | |
836 | **************************************************************************** | |
837 | ****************************************************************************/ | |
838 | ||
887965e6 | 839 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 840 | { |
887965e6 | 841 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
842 | |
843 | if (!ibm || !ibm->read) | |
844 | return -EINVAL; | |
887965e6 AD |
845 | return ibm->read(m); |
846 | } | |
56b6aeb0 | 847 | |
887965e6 AD |
848 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
849 | { | |
d9dda78b | 850 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
851 | } |
852 | ||
887965e6 | 853 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 854 | const char __user *userbuf, |
887965e6 | 855 | size_t count, loff_t *pos) |
56b6aeb0 | 856 | { |
d9dda78b | 857 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
858 | char *kernbuf; |
859 | int ret; | |
860 | ||
861 | if (!ibm || !ibm->write) | |
862 | return -EINVAL; | |
5b05d469 MB |
863 | if (count > PAGE_SIZE - 2) |
864 | return -EINVAL; | |
56b6aeb0 HMH |
865 | |
866 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
867 | if (!kernbuf) | |
868 | return -ENOMEM; | |
1da177e4 | 869 | |
56b6aeb0 HMH |
870 | if (copy_from_user(kernbuf, userbuf, count)) { |
871 | kfree(kernbuf); | |
872 | return -EFAULT; | |
873 | } | |
1da177e4 | 874 | |
56b6aeb0 HMH |
875 | kernbuf[count] = 0; |
876 | strcat(kernbuf, ","); | |
877 | ret = ibm->write(kernbuf); | |
878 | if (ret == 0) | |
879 | ret = count; | |
1da177e4 | 880 | |
56b6aeb0 HMH |
881 | kfree(kernbuf); |
882 | ||
883 | return ret; | |
1da177e4 LT |
884 | } |
885 | ||
887965e6 AD |
886 | static const struct file_operations dispatch_proc_fops = { |
887 | .owner = THIS_MODULE, | |
888 | .open = dispatch_proc_open, | |
889 | .read = seq_read, | |
890 | .llseek = seq_lseek, | |
891 | .release = single_release, | |
892 | .write = dispatch_proc_write, | |
893 | }; | |
894 | ||
1da177e4 LT |
895 | static char *next_cmd(char **cmds) |
896 | { | |
897 | char *start = *cmds; | |
898 | char *end; | |
899 | ||
900 | while ((end = strchr(start, ',')) && end == start) | |
901 | start = end + 1; | |
902 | ||
903 | if (!end) | |
904 | return NULL; | |
905 | ||
906 | *end = 0; | |
907 | *cmds = end + 1; | |
908 | return start; | |
909 | } | |
910 | ||
56b6aeb0 | 911 | |
54ae1501 HMH |
912 | /**************************************************************************** |
913 | **************************************************************************** | |
914 | * | |
7f5d1cd6 | 915 | * Device model: input, hwmon and platform |
54ae1501 HMH |
916 | * |
917 | **************************************************************************** | |
918 | ****************************************************************************/ | |
919 | ||
94954cc6 | 920 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 921 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 922 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 923 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 924 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 925 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 926 | |
3567a4e2 | 927 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 928 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
929 | { |
930 | struct ibm_struct *ibm, *itmp; | |
931 | ||
932 | list_for_each_entry_safe(ibm, itmp, | |
933 | &tpacpi_all_drivers, | |
934 | all_drivers) { | |
935 | if (ibm->suspend) | |
fd3c3a42 | 936 | (ibm->suspend)(); |
083f1760 HMH |
937 | } |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
4959a781 | 942 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
943 | { |
944 | struct ibm_struct *ibm, *itmp; | |
945 | ||
946 | list_for_each_entry_safe(ibm, itmp, | |
947 | &tpacpi_all_drivers, | |
948 | all_drivers) { | |
949 | if (ibm->resume) | |
950 | (ibm->resume)(); | |
951 | } | |
952 | ||
953 | return 0; | |
954 | } | |
3567a4e2 | 955 | #endif |
e295e850 | 956 | |
4959a781 RW |
957 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
958 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
959 | ||
90d9d3c7 HMH |
960 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
961 | { | |
962 | struct ibm_struct *ibm, *itmp; | |
963 | ||
964 | list_for_each_entry_safe(ibm, itmp, | |
965 | &tpacpi_all_drivers, | |
966 | all_drivers) { | |
967 | if (ibm->shutdown) | |
968 | (ibm->shutdown)(); | |
969 | } | |
970 | } | |
971 | ||
54ae1501 HMH |
972 | static struct platform_driver tpacpi_pdriver = { |
973 | .driver = { | |
e0c7dfe7 | 974 | .name = TPACPI_DRVR_NAME, |
54ae1501 | 975 | .owner = THIS_MODULE, |
4959a781 | 976 | .pm = &tpacpi_pm, |
54ae1501 | 977 | }, |
90d9d3c7 | 978 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
979 | }; |
980 | ||
7fd40029 HMH |
981 | static struct platform_driver tpacpi_hwmon_pdriver = { |
982 | .driver = { | |
e0c7dfe7 | 983 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
984 | .owner = THIS_MODULE, |
985 | }, | |
986 | }; | |
54ae1501 | 987 | |
176750d6 | 988 | /************************************************************************* |
b21a15f6 | 989 | * sysfs support helpers |
176750d6 HMH |
990 | */ |
991 | ||
b21a15f6 HMH |
992 | struct attribute_set { |
993 | unsigned int members, max_members; | |
994 | struct attribute_group group; | |
176750d6 HMH |
995 | }; |
996 | ||
7252374a HMH |
997 | struct attribute_set_obj { |
998 | struct attribute_set s; | |
999 | struct attribute *a; | |
1000 | } __attribute__((packed)); | |
1001 | ||
1002 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1003 | const char *name) |
7252374a HMH |
1004 | { |
1005 | struct attribute_set_obj *sobj; | |
1006 | ||
1007 | if (max_members == 0) | |
1008 | return NULL; | |
1009 | ||
1010 | /* Allocates space for implicit NULL at the end too */ | |
1011 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1012 | max_members * sizeof(struct attribute *), | |
1013 | GFP_KERNEL); | |
1014 | if (!sobj) | |
1015 | return NULL; | |
1016 | sobj->s.max_members = max_members; | |
1017 | sobj->s.group.attrs = &sobj->a; | |
1018 | sobj->s.group.name = name; | |
1019 | ||
1020 | return &sobj->s; | |
1021 | } | |
1022 | ||
f74a27d4 HMH |
1023 | #define destroy_attr_set(_set) \ |
1024 | kfree(_set); | |
1025 | ||
7252374a | 1026 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1027 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1028 | { |
1029 | if (!s || !attr) | |
1030 | return -EINVAL; | |
1031 | ||
1032 | if (s->members >= s->max_members) | |
1033 | return -ENOMEM; | |
1034 | ||
1035 | s->group.attrs[s->members] = attr; | |
1036 | s->members++; | |
1037 | ||
1038 | return 0; | |
1039 | } | |
1040 | ||
35ff8b9f | 1041 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1042 | struct attribute **attr, |
1043 | unsigned int count) | |
1044 | { | |
1045 | int i, res; | |
1046 | ||
1047 | for (i = 0; i < count; i++) { | |
1048 | res = add_to_attr_set(s, attr[i]); | |
1049 | if (res) | |
1050 | return res; | |
1051 | } | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
35ff8b9f | 1056 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1057 | { |
1058 | sysfs_remove_group(kobj, &s->group); | |
1059 | destroy_attr_set(s); | |
1060 | } | |
1061 | ||
f74a27d4 HMH |
1062 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1063 | sysfs_create_group(_kobj, &_attr_set->group) | |
1064 | ||
7252374a HMH |
1065 | static int parse_strtoul(const char *buf, |
1066 | unsigned long max, unsigned long *value) | |
1067 | { | |
1068 | char *endp; | |
1069 | ||
e7d2860b AGR |
1070 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1071 | endp = skip_spaces(endp); | |
7252374a HMH |
1072 | if (*endp || *value > max) |
1073 | return -EINVAL; | |
1074 | ||
1075 | return 0; | |
1076 | } | |
1077 | ||
d64c81c4 HMH |
1078 | static void tpacpi_disable_brightness_delay(void) |
1079 | { | |
1080 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1081 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1082 | } |
1083 | ||
19d337df JB |
1084 | static void printk_deprecated_attribute(const char * const what, |
1085 | const char * const details) | |
1086 | { | |
1087 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
0978e012 | 1088 | pr_warn("WARNING: sysfs attribute %s is deprecated and " |
19d337df JB |
1089 | "will be removed. %s\n", |
1090 | what, details); | |
1091 | } | |
1092 | ||
1093 | /************************************************************************* | |
1094 | * rfkill and radio control support helpers | |
1095 | */ | |
1096 | ||
1097 | /* | |
1098 | * ThinkPad-ACPI firmware handling model: | |
1099 | * | |
1100 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1101 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1102 | * as expected. It overrides all radio state in firmware | |
1103 | * | |
1104 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1105 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1106 | * | |
1107 | * The only time there are shadow radio state changes, is when | |
1108 | * masked-off hotkeys are used. | |
1109 | */ | |
1110 | ||
1111 | /* | |
1112 | * Internal driver API for radio state: | |
1113 | * | |
1114 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1115 | * bool: true means radio blocked (off) | |
1116 | */ | |
1117 | enum tpacpi_rfkill_state { | |
1118 | TPACPI_RFK_RADIO_OFF = 0, | |
1119 | TPACPI_RFK_RADIO_ON | |
1120 | }; | |
1121 | ||
1122 | /* rfkill switches */ | |
1123 | enum tpacpi_rfk_id { | |
1124 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1125 | TPACPI_RFK_WWAN_SW_ID, | |
1126 | TPACPI_RFK_UWB_SW_ID, | |
1127 | TPACPI_RFK_SW_MAX | |
1128 | }; | |
1129 | ||
1130 | static const char *tpacpi_rfkill_names[] = { | |
1131 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1132 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1133 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1134 | [TPACPI_RFK_SW_MAX] = NULL | |
1135 | }; | |
1136 | ||
1137 | /* ThinkPad-ACPI rfkill subdriver */ | |
1138 | struct tpacpi_rfk { | |
1139 | struct rfkill *rfkill; | |
1140 | enum tpacpi_rfk_id id; | |
1141 | const struct tpacpi_rfk_ops *ops; | |
1142 | }; | |
1143 | ||
1144 | struct tpacpi_rfk_ops { | |
1145 | /* firmware interface */ | |
1146 | int (*get_status)(void); | |
1147 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1148 | }; | |
1149 | ||
1150 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1151 | ||
1152 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1153 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1154 | { | |
1155 | int status; | |
1156 | ||
1157 | if (!tp_rfk) | |
1158 | return -ENODEV; | |
1159 | ||
1160 | status = (tp_rfk->ops->get_status)(); | |
1161 | if (status < 0) | |
1162 | return status; | |
1163 | ||
1164 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1165 | (status == TPACPI_RFK_RADIO_OFF)); | |
1166 | ||
1167 | return status; | |
1168 | } | |
1169 | ||
1170 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1171 | static void tpacpi_rfk_update_swstate_all(void) | |
1172 | { | |
1173 | unsigned int i; | |
1174 | ||
1175 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1176 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1177 | } | |
1178 | ||
1179 | /* | |
1180 | * Sync the HW-blocking state of all rfkill switches, | |
1181 | * do notice it causes the rfkill core to schedule uevents | |
1182 | */ | |
1183 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1184 | { | |
1185 | unsigned int i; | |
1186 | struct tpacpi_rfk *tp_rfk; | |
1187 | ||
1188 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1189 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1190 | if (tp_rfk) { | |
1191 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1192 | blocked)) { | |
1193 | /* ignore -- we track sw block */ | |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | /* Call to get the WLSW state from the firmware */ | |
1200 | static int hotkey_get_wlsw(void); | |
1201 | ||
1202 | /* Call to query WLSW state and update all rfkill switches */ | |
1203 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1204 | { | |
1205 | int res = hotkey_get_wlsw(); | |
1206 | int hw_blocked; | |
1207 | ||
1208 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1209 | if (res < 0) | |
1210 | return false; | |
1211 | ||
1212 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1213 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1214 | ||
1215 | return hw_blocked; | |
1216 | } | |
1217 | ||
1218 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1219 | { | |
1220 | struct tpacpi_rfk *tp_rfk = data; | |
1221 | int res; | |
1222 | ||
1223 | dbg_printk(TPACPI_DBG_RFKILL, | |
1224 | "request to change radio state to %s\n", | |
1225 | blocked ? "blocked" : "unblocked"); | |
1226 | ||
1227 | /* try to set radio state */ | |
1228 | res = (tp_rfk->ops->set_status)(blocked ? | |
1229 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1230 | ||
1231 | /* and update the rfkill core with whatever the FW really did */ | |
1232 | tpacpi_rfk_update_swstate(tp_rfk); | |
1233 | ||
1234 | return (res < 0) ? res : 0; | |
1235 | } | |
1236 | ||
1237 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1238 | .set_block = tpacpi_rfk_hook_set_block, | |
1239 | }; | |
1240 | ||
1241 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1242 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1243 | const enum rfkill_type rfktype, |
1244 | const char *name, | |
19d337df | 1245 | const bool set_default) |
0e74dc26 | 1246 | { |
19d337df | 1247 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1248 | int res; |
06d5caf4 | 1249 | bool sw_state = false; |
5451a923 | 1250 | bool hw_state; |
06d5caf4 | 1251 | int sw_status; |
90d9d3c7 | 1252 | |
19d337df JB |
1253 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1254 | ||
19d337df JB |
1255 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1256 | if (atp_rfk) | |
1257 | atp_rfk->rfkill = rfkill_alloc(name, | |
1258 | &tpacpi_pdev->dev, | |
1259 | rfktype, | |
1260 | &tpacpi_rfk_rfkill_ops, | |
1261 | atp_rfk); | |
1262 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1263 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1264 | kfree(atp_rfk); |
0e74dc26 HMH |
1265 | return -ENOMEM; |
1266 | } | |
1267 | ||
19d337df JB |
1268 | atp_rfk->id = id; |
1269 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1270 | |
06d5caf4 AJ |
1271 | sw_status = (tp_rfkops->get_status)(); |
1272 | if (sw_status < 0) { | |
0978e012 JP |
1273 | pr_err("failed to read initial state for %s, error %d\n", |
1274 | name, sw_status); | |
b3fa1329 | 1275 | } else { |
06d5caf4 | 1276 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1277 | if (set_default) { |
1278 | /* try to keep the initial state, since we ask the | |
1279 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1280 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1281 | } |
1282 | } | |
5451a923 HMH |
1283 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1284 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1285 | |
1286 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1287 | if (res < 0) { |
0978e012 | 1288 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1289 | rfkill_destroy(atp_rfk->rfkill); |
1290 | kfree(atp_rfk); | |
0e74dc26 HMH |
1291 | return res; |
1292 | } | |
1293 | ||
19d337df | 1294 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1295 | |
0978e012 | 1296 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1297 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1298 | return 0; |
1299 | } | |
1300 | ||
19d337df | 1301 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1302 | { |
19d337df JB |
1303 | struct tpacpi_rfk *tp_rfk; |
1304 | ||
1305 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1306 | ||
1307 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1308 | if (tp_rfk) { | |
1309 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1310 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1311 | tpacpi_rfkill_switches[id] = NULL; |
1312 | kfree(tp_rfk); | |
1313 | } | |
73a94d86 HMH |
1314 | } |
1315 | ||
1316 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1317 | { | |
1318 | printk_deprecated_attribute(what, | |
1319 | "Please switch to generic rfkill before year 2010"); | |
1320 | } | |
1321 | ||
19d337df JB |
1322 | /* sysfs <radio> enable ------------------------------------------------ */ |
1323 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1324 | struct device_attribute *attr, | |
1325 | char *buf) | |
1326 | { | |
1327 | int status; | |
1328 | ||
1329 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1330 | ||
1331 | /* This is in the ABI... */ | |
1332 | if (tpacpi_rfk_check_hwblock_state()) { | |
1333 | status = TPACPI_RFK_RADIO_OFF; | |
1334 | } else { | |
1335 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1336 | if (status < 0) | |
1337 | return status; | |
1338 | } | |
1339 | ||
1340 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1341 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1342 | } | |
1343 | ||
1344 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1345 | struct device_attribute *attr, | |
1346 | const char *buf, size_t count) | |
1347 | { | |
1348 | unsigned long t; | |
1349 | int res; | |
1350 | ||
1351 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1352 | ||
1353 | if (parse_strtoul(buf, 1, &t)) | |
1354 | return -EINVAL; | |
1355 | ||
1356 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1357 | ||
1358 | /* This is in the ABI... */ | |
1359 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1360 | return -EPERM; | |
1361 | ||
1362 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1363 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1364 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1365 | ||
1366 | return (res < 0) ? res : count; | |
1367 | } | |
1368 | ||
1369 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1370 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1371 | { |
19d337df | 1372 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1373 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1374 | else { |
1375 | int status; | |
1376 | ||
1377 | /* This is in the ABI... */ | |
1378 | if (tpacpi_rfk_check_hwblock_state()) { | |
1379 | status = TPACPI_RFK_RADIO_OFF; | |
1380 | } else { | |
1381 | status = tpacpi_rfk_update_swstate( | |
1382 | tpacpi_rfkill_switches[id]); | |
1383 | if (status < 0) | |
1384 | return status; | |
1385 | } | |
1386 | ||
887965e6 | 1387 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1388 | (status == TPACPI_RFK_RADIO_ON) ? |
1389 | "enabled" : "disabled"); | |
887965e6 | 1390 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1391 | } |
1392 | ||
887965e6 | 1393 | return 0; |
19d337df JB |
1394 | } |
1395 | ||
1396 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1397 | { | |
1398 | char *cmd; | |
1399 | int status = -1; | |
1400 | int res = 0; | |
1401 | ||
1402 | if (id >= TPACPI_RFK_SW_MAX) | |
1403 | return -ENODEV; | |
1404 | ||
1405 | while ((cmd = next_cmd(&buf))) { | |
1406 | if (strlencmp(cmd, "enable") == 0) | |
1407 | status = TPACPI_RFK_RADIO_ON; | |
1408 | else if (strlencmp(cmd, "disable") == 0) | |
1409 | status = TPACPI_RFK_RADIO_OFF; | |
1410 | else | |
1411 | return -EINVAL; | |
1412 | } | |
1413 | ||
1414 | if (status != -1) { | |
1415 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1416 | (status == TPACPI_RFK_RADIO_ON) ? | |
1417 | "enable" : "disable", | |
1418 | tpacpi_rfkill_names[id]); | |
1419 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1420 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1421 | } | |
1422 | ||
1423 | return res; | |
1424 | } | |
1425 | ||
56b6aeb0 | 1426 | /************************************************************************* |
b21a15f6 | 1427 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1428 | */ |
1429 | ||
b21a15f6 HMH |
1430 | /* interface_version --------------------------------------------------- */ |
1431 | static ssize_t tpacpi_driver_interface_version_show( | |
1432 | struct device_driver *drv, | |
1433 | char *buf) | |
1da177e4 | 1434 | { |
b21a15f6 HMH |
1435 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1436 | } | |
1437 | ||
1438 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1439 | tpacpi_driver_interface_version_show, NULL); | |
1440 | ||
1441 | /* debug_level --------------------------------------------------------- */ | |
1442 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1443 | char *buf) | |
1444 | { | |
1445 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1446 | } | |
1447 | ||
1448 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1449 | const char *buf, size_t count) | |
1450 | { | |
1451 | unsigned long t; | |
1452 | ||
1453 | if (parse_strtoul(buf, 0xffff, &t)) | |
1454 | return -EINVAL; | |
1455 | ||
1456 | dbg_level = t; | |
1457 | ||
1458 | return count; | |
1459 | } | |
1460 | ||
1461 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1462 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1463 | ||
1464 | /* version ------------------------------------------------------------- */ | |
1465 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1466 | char *buf) | |
1467 | { | |
35ff8b9f HMH |
1468 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1469 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1470 | } |
1471 | ||
1472 | static DRIVER_ATTR(version, S_IRUGO, | |
1473 | tpacpi_driver_version_show, NULL); | |
1474 | ||
1475 | /* --------------------------------------------------------------------- */ | |
1476 | ||
a73f3091 HMH |
1477 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1478 | ||
a73f3091 HMH |
1479 | /* wlsw_emulstate ------------------------------------------------------ */ |
1480 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1481 | char *buf) | |
1482 | { | |
1483 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1484 | } | |
1485 | ||
1486 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1487 | const char *buf, size_t count) | |
1488 | { | |
1489 | unsigned long t; | |
1490 | ||
1491 | if (parse_strtoul(buf, 1, &t)) | |
1492 | return -EINVAL; | |
1493 | ||
19d337df | 1494 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1495 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1496 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1497 | } | |
a73f3091 HMH |
1498 | |
1499 | return count; | |
1500 | } | |
1501 | ||
1502 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1503 | tpacpi_driver_wlsw_emulstate_show, | |
1504 | tpacpi_driver_wlsw_emulstate_store); | |
1505 | ||
1506 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1507 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1508 | struct device_driver *drv, | |
1509 | char *buf) | |
1510 | { | |
1511 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1512 | } | |
1513 | ||
1514 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1515 | struct device_driver *drv, | |
1516 | const char *buf, size_t count) | |
1517 | { | |
1518 | unsigned long t; | |
1519 | ||
1520 | if (parse_strtoul(buf, 1, &t)) | |
1521 | return -EINVAL; | |
1522 | ||
1523 | tpacpi_bluetooth_emulstate = !!t; | |
1524 | ||
1525 | return count; | |
1526 | } | |
1527 | ||
1528 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1529 | tpacpi_driver_bluetooth_emulstate_show, | |
1530 | tpacpi_driver_bluetooth_emulstate_store); | |
1531 | ||
1532 | /* wwan_emulstate ------------------------------------------------- */ | |
1533 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1534 | struct device_driver *drv, | |
1535 | char *buf) | |
1536 | { | |
1537 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1538 | } | |
1539 | ||
1540 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1541 | struct device_driver *drv, | |
1542 | const char *buf, size_t count) | |
1543 | { | |
1544 | unsigned long t; | |
1545 | ||
1546 | if (parse_strtoul(buf, 1, &t)) | |
1547 | return -EINVAL; | |
1548 | ||
1549 | tpacpi_wwan_emulstate = !!t; | |
1550 | ||
1551 | return count; | |
1552 | } | |
1553 | ||
1554 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1555 | tpacpi_driver_wwan_emulstate_show, | |
1556 | tpacpi_driver_wwan_emulstate_store); | |
1557 | ||
0045c0aa HMH |
1558 | /* uwb_emulstate ------------------------------------------------- */ |
1559 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1560 | struct device_driver *drv, | |
1561 | char *buf) | |
1562 | { | |
1563 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1564 | } | |
1565 | ||
1566 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1567 | struct device_driver *drv, | |
1568 | const char *buf, size_t count) | |
1569 | { | |
1570 | unsigned long t; | |
1571 | ||
1572 | if (parse_strtoul(buf, 1, &t)) | |
1573 | return -EINVAL; | |
1574 | ||
1575 | tpacpi_uwb_emulstate = !!t; | |
1576 | ||
1577 | return count; | |
1578 | } | |
1579 | ||
1580 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1581 | tpacpi_driver_uwb_emulstate_show, | |
1582 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1583 | #endif |
1584 | ||
1585 | /* --------------------------------------------------------------------- */ | |
1586 | ||
35ff8b9f | 1587 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1588 | &driver_attr_debug_level, &driver_attr_version, |
1589 | &driver_attr_interface_version, | |
1590 | }; | |
1591 | ||
1592 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1593 | { | |
1594 | int i, res; | |
1595 | ||
1596 | i = 0; | |
1597 | res = 0; | |
1598 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1599 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1600 | i++; | |
1601 | } | |
1602 | ||
a73f3091 HMH |
1603 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1604 | if (!res && dbg_wlswemul) | |
1605 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1606 | if (!res && dbg_bluetoothemul) | |
1607 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1608 | if (!res && dbg_wwanemul) | |
1609 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1610 | if (!res && dbg_uwbemul) |
1611 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1612 | #endif |
1613 | ||
b21a15f6 HMH |
1614 | return res; |
1615 | } | |
1616 | ||
1617 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1618 | { | |
1619 | int i; | |
1620 | ||
35ff8b9f | 1621 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1622 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1623 | |
1624 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1625 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1626 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1627 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1628 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1629 | #endif |
b21a15f6 HMH |
1630 | } |
1631 | ||
600a99fa HMH |
1632 | /************************************************************************* |
1633 | * Firmware Data | |
1634 | */ | |
1635 | ||
1636 | /* | |
1637 | * Table of recommended minimum BIOS versions | |
1638 | * | |
1639 | * Reasons for listing: | |
9ddc5b6f | 1640 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1641 | * bugs and bad ACPI behaviour on older versions |
1642 | * | |
1643 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1644 | * | |
1645 | * 3. BIOS with known reduced functionality in older versions | |
1646 | * | |
1647 | * We recommend the latest BIOS and EC version. | |
1648 | * We only support the latest BIOS and EC fw version as a rule. | |
1649 | * | |
1650 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1651 | * Information from users in ThinkWiki | |
e675abaf HMH |
1652 | * |
1653 | * WARNING: we use this table also to detect that the machine is | |
1654 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1655 | */ |
1656 | ||
1657 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1658 | { .vendor = (__v), \ | |
1659 | .bios = TPID(__id1, __id2), \ | |
1660 | .ec = TPACPI_MATCH_ANY, \ | |
1661 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1662 | | (__bv1) << 8 | (__bv2) } | |
1663 | ||
1664 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1665 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1666 | { .vendor = (__v), \ |
1667 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1668 | .ec = __eid, \ |
600a99fa HMH |
1669 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1670 | | (__bv1) << 8 | (__bv2) } | |
1671 | ||
1672 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1673 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1674 | ||
275014ae | 1675 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1676 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1677 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1678 | __bv1, __bv2, TPID(__id1, __id2), \ |
1679 | __ev1, __ev2), \ | |
1680 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1681 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1682 | __ev1, __ev2) | |
600a99fa | 1683 | |
275014ae | 1684 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1685 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1686 | __eid1, __eid2, __ev1, __ev2) \ | |
1687 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1688 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1689 | __ev1, __ev2), \ | |
1690 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1691 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1692 | __ev1, __ev2) | |
600a99fa HMH |
1693 | |
1694 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1695 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1696 | ||
1697 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1698 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1699 | __bv1, __bv2, TPID(__id1, __id2), \ |
1700 | __ev1, __ev2) | |
600a99fa HMH |
1701 | |
1702 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1703 | __eid1, __eid2, __ev1, __ev2) \ | |
1704 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1705 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1706 | __ev1, __ev2) | |
600a99fa HMH |
1707 | |
1708 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1709 | /* Numeric models ------------------ */ | |
1710 | /* FW MODEL BIOS VERS */ | |
1711 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1712 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1713 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1714 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1715 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1716 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1717 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1718 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1719 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1720 | ||
1721 | /* A-series ------------------------- */ | |
1722 | /* FW MODEL BIOS VERS EC VERS */ | |
1723 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1724 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1725 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1726 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1727 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1728 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1729 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1730 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1731 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1732 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1733 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1734 | ||
1735 | /* G-series ------------------------- */ | |
1736 | /* FW MODEL BIOS VERS */ | |
1737 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1738 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1739 | ||
1740 | /* R-series, T-series --------------- */ | |
1741 | /* FW MODEL BIOS VERS EC VERS */ | |
1742 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1743 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1744 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1745 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1746 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1747 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1748 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1749 | T40/p, T41/p, T42/p (1) */ | |
1750 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1751 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1752 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1753 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1754 | ||
1755 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1756 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1757 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1758 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1759 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1760 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1761 | ||
1762 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1763 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1764 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1765 | |
1766 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1767 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1768 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1769 | ||
1770 | /* X-series ------------------------- */ | |
1771 | /* FW MODEL BIOS VERS EC VERS */ | |
1772 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1773 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1774 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1775 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1776 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1777 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1778 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1779 | ||
90765c6a HMH |
1780 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1781 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1782 | |
1783 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1784 | /* (1) - older versions known to lack functionality */ | |
1785 | }; | |
1786 | ||
1787 | #undef TPV_QL1 | |
1788 | #undef TPV_QL0 | |
1789 | #undef TPV_QI2 | |
1790 | #undef TPV_QI1 | |
1791 | #undef TPV_QI0 | |
1792 | #undef TPV_Q_X | |
1793 | #undef TPV_Q | |
1794 | ||
1795 | static void __init tpacpi_check_outdated_fw(void) | |
1796 | { | |
1797 | unsigned long fwvers; | |
1798 | u16 ec_version, bios_version; | |
1799 | ||
1800 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1801 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1802 | ||
1803 | if (!fwvers) | |
1804 | return; | |
1805 | ||
1806 | bios_version = fwvers & 0xffffU; | |
1807 | ec_version = (fwvers >> 16) & 0xffffU; | |
1808 | ||
1809 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1810 | if ((bios_version > thinkpad_id.bios_release) || | |
1811 | (ec_version > thinkpad_id.ec_release && | |
1812 | ec_version != TPACPI_MATCH_ANY)) { | |
1813 | /* | |
1814 | * The changelogs would let us track down the exact | |
1815 | * reason, but it is just too much of a pain to track | |
1816 | * it. We only list BIOSes that are either really | |
1817 | * broken, or really stable to begin with, so it is | |
1818 | * best if the user upgrades the firmware anyway. | |
1819 | */ | |
0978e012 JP |
1820 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
1821 | pr_warn("WARNING: This firmware may be missing critical bug " | |
600a99fa HMH |
1822 | "fixes and/or important features\n"); |
1823 | } | |
1824 | } | |
1825 | ||
e675abaf HMH |
1826 | static bool __init tpacpi_is_fw_known(void) |
1827 | { | |
1828 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1829 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1830 | } | |
1831 | ||
b21a15f6 HMH |
1832 | /**************************************************************************** |
1833 | **************************************************************************** | |
1834 | * | |
1835 | * Subdrivers | |
1836 | * | |
1837 | **************************************************************************** | |
1838 | ****************************************************************************/ | |
1839 | ||
1840 | /************************************************************************* | |
7a43f788 | 1841 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1842 | */ |
1843 | ||
887965e6 | 1844 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1845 | { |
887965e6 AD |
1846 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1847 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1848 | return 0; | |
1da177e4 LT |
1849 | } |
1850 | ||
a5763f22 HMH |
1851 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1852 | .name = "driver", | |
1853 | .read = thinkpad_acpi_driver_read, | |
1854 | }; | |
1855 | ||
56b6aeb0 HMH |
1856 | /************************************************************************* |
1857 | * Hotkey subdriver | |
1858 | */ | |
1859 | ||
0d922e3b HMH |
1860 | /* |
1861 | * ThinkPad firmware event model | |
1862 | * | |
1863 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1864 | * notifications (which follow the ACPI standard), and a private event | |
1865 | * interface. | |
1866 | * | |
1867 | * The private event interface also issues events for the hotkeys. As | |
1868 | * the driver gained features, the event handling code ended up being | |
1869 | * built around the hotkey subdriver. This will need to be refactored | |
1870 | * to a more formal event API eventually. | |
1871 | * | |
1872 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1873 | * such as "brightness has changed", "volume has changed", depending on | |
1874 | * the ThinkPad model and how the firmware is operating. | |
1875 | * | |
1876 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1877 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1878 | * firmware model and version. | |
1879 | */ | |
1880 | ||
f74a27d4 HMH |
1881 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1882 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1883 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1884 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1885 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1886 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1887 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1888 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1889 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1890 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1891 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1892 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1893 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1894 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1895 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1896 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1897 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1898 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1899 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1900 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1901 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1902 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1903 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1904 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1905 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1906 | TP_ACPI_HOTKEYSCAN_UNK1, |
1907 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1908 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1909 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1910 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1911 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1912 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1913 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1914 | ||
1915 | /* Hotkey keymap size */ | |
1916 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1917 | }; |
1918 | ||
0d922e3b | 1919 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1920 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1921 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1922 | }; | |
1923 | ||
1924 | enum { /* Positions of some of the keys in hotkey masks */ | |
1925 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1926 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1927 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1928 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1929 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1930 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1931 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1932 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1933 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1934 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1935 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1936 | }; | |
1937 | ||
1938 | enum { /* NVRAM to ACPI HKEY group map */ | |
1939 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1940 | TP_ACPI_HKEY_ZOOM_MASK | | |
1941 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1942 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1943 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1944 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1945 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1946 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1947 | TP_ACPI_HKEY_MUTE_MASK, | |
1948 | }; | |
1949 | ||
1950 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1951 | struct tp_nvram_state { | |
1952 | u16 thinkpad_toggle:1; | |
1953 | u16 zoom_toggle:1; | |
1954 | u16 display_toggle:1; | |
1955 | u16 thinklight_toggle:1; | |
1956 | u16 hibernate_toggle:1; | |
1957 | u16 displayexp_toggle:1; | |
1958 | u16 display_state:1; | |
1959 | u16 brightness_toggle:1; | |
1960 | u16 volume_toggle:1; | |
1961 | u16 mute:1; | |
1962 | ||
1963 | u8 brightness_level; | |
1964 | u8 volume_level; | |
1965 | }; | |
1966 | ||
db25f16d | 1967 | /* kthread for the hotkey poller */ |
01e88f25 | 1968 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 1969 | |
db25f16d | 1970 | /* |
0d922e3b HMH |
1971 | * Acquire mutex to write poller control variables as an |
1972 | * atomic block. | |
1973 | * | |
1974 | * Increment hotkey_config_change when changing them if you | |
1975 | * want the kthread to forget old state. | |
db25f16d HMH |
1976 | * |
1977 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1978 | */ | |
01e88f25 HMH |
1979 | static struct mutex hotkey_thread_data_mutex; |
1980 | static unsigned int hotkey_config_change; | |
1981 | ||
db25f16d HMH |
1982 | /* |
1983 | * hotkey poller control variables | |
1984 | * | |
1985 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
1986 | * |
1987 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1988 | * should be used only when the changes need to be taken as | |
1989 | * a block, OR when one needs to force the kthread to forget | |
1990 | * old state. | |
db25f16d HMH |
1991 | */ |
1992 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1993 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
1994 | ||
1995 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
1996 | do { \ | |
1997 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1998 | hotkey_config_change++; \ | |
1999 | } while (0); | |
2000 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2001 | mutex_unlock(&hotkey_thread_data_mutex); | |
2002 | ||
01e88f25 HMH |
2003 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2004 | ||
2005 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2006 | #define HOTKEY_CONFIG_CRITICAL_START |
2007 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2008 | |
2009 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2010 | ||
f74a27d4 HMH |
2011 | static struct mutex hotkey_mutex; |
2012 | ||
a713b4d7 HMH |
2013 | static enum { /* Reasons for waking up */ |
2014 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2015 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2016 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2017 | } hotkey_wakeup_reason; | |
2018 | ||
2019 | static int hotkey_autosleep_ack; | |
2020 | ||
0d922e3b HMH |
2021 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2022 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2023 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2024 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2025 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2026 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2027 | |
edf0e0e5 | 2028 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2029 | |
94954cc6 | 2030 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2031 | |
8b468c0c HMH |
2032 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2033 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2034 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2035 | |
6c231bd5 HMH |
2036 | /* HKEY.MHKG() return bits */ |
2037 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2038 | ||
19d337df | 2039 | static int hotkey_get_wlsw(void) |
74941a69 | 2040 | { |
19d337df JB |
2041 | int status; |
2042 | ||
2043 | if (!tp_features.hotkey_wlsw) | |
2044 | return -ENODEV; | |
2045 | ||
a73f3091 | 2046 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2047 | if (dbg_wlswemul) |
2048 | return (tpacpi_wlsw_emulstate) ? | |
2049 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2050 | #endif |
19d337df JB |
2051 | |
2052 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2053 | return -EIO; |
19d337df JB |
2054 | |
2055 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2056 | } |
2057 | ||
6c231bd5 HMH |
2058 | static int hotkey_get_tablet_mode(int *status) |
2059 | { | |
2060 | int s; | |
2061 | ||
2062 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2063 | return -EIO; | |
2064 | ||
cee47f5a HMH |
2065 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2066 | return 0; | |
6c231bd5 HMH |
2067 | } |
2068 | ||
b2c985e7 | 2069 | /* |
0d922e3b HMH |
2070 | * Reads current event mask from firmware, and updates |
2071 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2072 | * from hotkey_user_mask that are unavailable to be | |
2073 | * delivered (shadow requirement of the userspace ABI). | |
2074 | * | |
b2c985e7 HMH |
2075 | * Call with hotkey_mutex held |
2076 | */ | |
2077 | static int hotkey_mask_get(void) | |
2078 | { | |
2079 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2080 | u32 m = 0; |
2081 | ||
01e88f25 | 2082 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2083 | return -EIO; |
0d922e3b HMH |
2084 | |
2085 | hotkey_acpi_mask = m; | |
2086 | } else { | |
2087 | /* no mask support doesn't mean no event support... */ | |
2088 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2089 | } |
0d922e3b HMH |
2090 | |
2091 | /* sync userspace-visible mask */ | |
2092 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2093 | |
2094 | return 0; | |
2095 | } | |
2096 | ||
0d922e3b HMH |
2097 | void static hotkey_mask_warn_incomplete_mask(void) |
2098 | { | |
2099 | /* log only what the user can fix... */ | |
2100 | const u32 wantedmask = hotkey_driver_mask & | |
2101 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2102 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2103 | ||
2104 | if (wantedmask) | |
0978e012 | 2105 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2106 | } |
2107 | ||
b2c985e7 | 2108 | /* |
0d922e3b HMH |
2109 | * Set the firmware mask when supported |
2110 | * | |
2111 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2112 | * | |
2113 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2114 | * | |
b2c985e7 HMH |
2115 | * Call with hotkey_mutex held |
2116 | */ | |
2117 | static int hotkey_mask_set(u32 mask) | |
2118 | { | |
2119 | int i; | |
2120 | int rc = 0; | |
2121 | ||
0d922e3b | 2122 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2123 | |
0d922e3b | 2124 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2125 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2126 | if (!acpi_evalf(hkey_handle, |
2127 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2128 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2129 | rc = -EIO; |
2130 | break; | |
b2c985e7 HMH |
2131 | } |
2132 | } | |
0d922e3b | 2133 | } |
b2c985e7 | 2134 | |
0d922e3b HMH |
2135 | /* |
2136 | * We *must* make an inconditional call to hotkey_mask_get to | |
2137 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2138 | * | |
2139 | * Take the opportunity to also log when we cannot _enable_ | |
2140 | * a given event. | |
2141 | */ | |
2142 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
0978e012 JP |
2143 | pr_notice("asked for hotkey mask 0x%08x, but " |
2144 | "firmware forced it to 0x%08x\n", | |
2145 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2146 | } |
2147 | ||
6b30eb7d HMH |
2148 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2149 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2150 | |
2151 | return rc; | |
2152 | } | |
2153 | ||
2154 | /* | |
2155 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2156 | * | |
2157 | * Call with hotkey_mutex held | |
2158 | */ | |
2159 | static int hotkey_user_mask_set(const u32 mask) | |
2160 | { | |
2161 | int rc; | |
2162 | ||
2163 | /* Give people a chance to notice they are doing something that | |
2164 | * is bound to go boom on their users sooner or later */ | |
2165 | if (!tp_warned.hotkey_mask_ff && | |
2166 | (mask == 0xffff || mask == 0xffffff || | |
2167 | mask == 0xffffffff)) { | |
2168 | tp_warned.hotkey_mask_ff = 1; | |
0978e012 JP |
2169 | pr_notice("setting the hotkey mask to 0x%08x is likely " |
2170 | "not the best way to go about it\n", mask); | |
2171 | pr_notice("please consider using the driver defaults, " | |
2172 | "and refer to up-to-date thinkpad-acpi " | |
2173 | "documentation\n"); | |
0d922e3b HMH |
2174 | } |
2175 | ||
2176 | /* Try to enable what the user asked for, plus whatever we need. | |
2177 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2178 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2179 | ||
2180 | /* Enable the available bits in hotkey_user_mask */ | |
2181 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2182 | ||
b2c985e7 HMH |
2183 | return rc; |
2184 | } | |
2185 | ||
8b468c0c HMH |
2186 | /* |
2187 | * Sets the driver hotkey mask. | |
2188 | * | |
2189 | * Can be called even if the hotkey subdriver is inactive | |
2190 | */ | |
2191 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2192 | { | |
2193 | int rc; | |
2194 | ||
2195 | /* Do the right thing if hotkey_init has not been called yet */ | |
2196 | if (!tp_features.hotkey) { | |
2197 | hotkey_driver_mask = mask; | |
2198 | return 0; | |
2199 | } | |
2200 | ||
2201 | mutex_lock(&hotkey_mutex); | |
2202 | ||
2203 | HOTKEY_CONFIG_CRITICAL_START | |
2204 | hotkey_driver_mask = mask; | |
b684a363 | 2205 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2206 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2207 | #endif |
8b468c0c HMH |
2208 | HOTKEY_CONFIG_CRITICAL_END |
2209 | ||
2210 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2211 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2212 | hotkey_poll_setup(true); |
2213 | ||
8b468c0c HMH |
2214 | mutex_unlock(&hotkey_mutex); |
2215 | ||
2216 | return rc; | |
2217 | } | |
2218 | ||
b2c985e7 HMH |
2219 | static int hotkey_status_get(int *status) |
2220 | { | |
2221 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2222 | return -EIO; | |
2223 | ||
2224 | return 0; | |
2225 | } | |
2226 | ||
2586d566 | 2227 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2228 | { |
2586d566 | 2229 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2230 | return -EIO; |
2231 | ||
2232 | return 0; | |
2233 | } | |
2234 | ||
6c231bd5 | 2235 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2236 | { |
6c231bd5 | 2237 | int state; |
b3ec6f91 | 2238 | |
6c231bd5 HMH |
2239 | if (tp_features.hotkey_tablet && |
2240 | !hotkey_get_tablet_mode(&state)) { | |
2241 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2242 | |
6c231bd5 HMH |
2243 | input_report_switch(tpacpi_inputdev, |
2244 | SW_TABLET_MODE, !!state); | |
2245 | input_sync(tpacpi_inputdev); | |
2246 | ||
2247 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2248 | } | |
b3ec6f91 HMH |
2249 | } |
2250 | ||
0d922e3b HMH |
2251 | /* Do NOT call without validating scancode first */ |
2252 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2253 | { |
0d922e3b | 2254 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2255 | |
2256 | if (keycode != KEY_RESERVED) { | |
2257 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2258 | ||
5ffba7e6 | 2259 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2260 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2261 | input_sync(tpacpi_inputdev); |
2262 | ||
5ffba7e6 | 2263 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2264 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2265 | input_sync(tpacpi_inputdev); |
2266 | ||
2267 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2268 | } | |
2269 | } | |
2270 | ||
0d922e3b HMH |
2271 | /* Do NOT call without validating scancode first */ |
2272 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2273 | { | |
8b468c0c | 2274 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2275 | if (hotkey_user_mask & (1 << scancode)) |
2276 | tpacpi_input_send_key(scancode); | |
2277 | } | |
2278 | ||
01e88f25 HMH |
2279 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2280 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2281 | ||
0d922e3b | 2282 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2283 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2284 | { | |
0d922e3b | 2285 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2286 | } |
2287 | ||
0d922e3b | 2288 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2289 | { |
2290 | u8 d; | |
2291 | ||
2292 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2293 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2294 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2295 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2296 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2297 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2298 | } | |
2299 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2300 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2301 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2302 | } | |
2303 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2304 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2305 | n->displayexp_toggle = | |
2306 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2307 | } | |
2308 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2309 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2310 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2311 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2312 | n->brightness_toggle = | |
2313 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2314 | } | |
2315 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2316 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2317 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2318 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2319 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2320 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2321 | } | |
2322 | } | |
2323 | ||
2324 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2325 | do { \ |
2326 | if ((event_mask & (1 << __scancode)) && \ | |
2327 | oldn->__member != newn->__member) \ | |
2328 | tpacpi_hotkey_send_key(__scancode); \ | |
2329 | } while (0) | |
01e88f25 HMH |
2330 | |
2331 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2332 | do { \ |
2333 | if (event_mask & (1 << __scancode)) \ | |
2334 | tpacpi_hotkey_send_key(__scancode); \ | |
2335 | } while (0) | |
2336 | ||
2337 | static void issue_volchange(const unsigned int oldvol, | |
2338 | const unsigned int newvol, | |
2339 | const u32 event_mask) | |
2340 | { | |
2341 | unsigned int i = oldvol; | |
2342 | ||
2343 | while (i > newvol) { | |
2344 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2345 | i--; | |
5d756db9 | 2346 | } |
a4d44ba1 BW |
2347 | while (i < newvol) { |
2348 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2349 | i++; | |
2350 | } | |
2351 | } | |
5d756db9 | 2352 | |
a4d44ba1 BW |
2353 | static void issue_brightnesschange(const unsigned int oldbrt, |
2354 | const unsigned int newbrt, | |
2355 | const u32 event_mask) | |
2356 | { | |
2357 | unsigned int i = oldbrt; | |
28999022 | 2358 | |
a4d44ba1 BW |
2359 | while (i > newbrt) { |
2360 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2361 | i--; | |
28999022 | 2362 | } |
a4d44ba1 BW |
2363 | while (i < newbrt) { |
2364 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2365 | i++; | |
2366 | } | |
2367 | } | |
2368 | ||
2369 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2370 | struct tp_nvram_state *newn, | |
2371 | const u32 event_mask) | |
2372 | { | |
28999022 | 2373 | |
01e88f25 HMH |
2374 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2375 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2376 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2377 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2378 | ||
2379 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2380 | ||
2381 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2382 | ||
5d756db9 HMH |
2383 | /* |
2384 | * Handle volume | |
2385 | * | |
2386 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2387 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2388 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2389 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2390 | * - The act of unmuting issues volume up/down notification, |
2391 | * depending which key was used to unmute | |
2392 | * | |
2393 | * We are constrained to what the NVRAM can tell us, which is not much | |
2394 | * and certainly not enough if more than one volume hotkey was pressed | |
2395 | * since the last poll cycle. | |
2396 | * | |
2397 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2398 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2399 | */ | |
2400 | if (newn->mute) { | |
2401 | /* muted */ | |
2402 | if (!oldn->mute || | |
2403 | oldn->volume_toggle != newn->volume_toggle || | |
2404 | oldn->volume_level != newn->volume_level) { | |
2405 | /* recently muted, or repeated mute keypress, or | |
2406 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2407 | issue_volchange(oldn->volume_level, newn->volume_level, |
2408 | event_mask); | |
01e88f25 HMH |
2409 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2410 | } | |
5d756db9 HMH |
2411 | } else { |
2412 | /* unmute */ | |
2413 | if (oldn->mute) { | |
2414 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2415 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2416 | } |
2417 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2418 | issue_volchange(oldn->volume_level, newn->volume_level, |
2419 | event_mask); | |
5d756db9 HMH |
2420 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2421 | /* repeated vol up/down keypress at end of scale ? */ | |
2422 | if (newn->volume_level == 0) | |
01e88f25 | 2423 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2424 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2425 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2426 | } |
2427 | } | |
2428 | ||
2429 | /* handle brightness */ | |
28999022 HMH |
2430 | if (oldn->brightness_level != newn->brightness_level) { |
2431 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2432 | newn->brightness_level, event_mask); |
28999022 HMH |
2433 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2434 | /* repeated key presses that didn't change state */ | |
2435 | if (newn->brightness_level == 0) | |
01e88f25 | 2436 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2437 | else if (newn->brightness_level >= bright_maxlvl |
2438 | && !tp_features.bright_unkfw) | |
2439 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2440 | } |
01e88f25 HMH |
2441 | |
2442 | #undef TPACPI_COMPARE_KEY | |
2443 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2444 | } |
01e88f25 | 2445 | |
0d922e3b HMH |
2446 | /* |
2447 | * Polling driver | |
2448 | * | |
2449 | * We track all events in hotkey_source_mask all the time, since | |
2450 | * most of them are edge-based. We only issue those requested by | |
2451 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2452 | */ | |
01e88f25 HMH |
2453 | static int hotkey_kthread(void *data) |
2454 | { | |
2455 | struct tp_nvram_state s[2]; | |
0d922e3b | 2456 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2457 | unsigned int si, so; |
2458 | unsigned long t; | |
8a32c441 | 2459 | unsigned int change_detector; |
db25f16d | 2460 | unsigned int poll_freq; |
8a32c441 | 2461 | bool was_frozen; |
01e88f25 | 2462 | |
01e88f25 HMH |
2463 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2464 | goto exit; | |
2465 | ||
2466 | set_freezable(); | |
2467 | ||
2468 | so = 0; | |
2469 | si = 1; | |
2470 | t = 0; | |
2471 | ||
2472 | /* Initial state for compares */ | |
2473 | mutex_lock(&hotkey_thread_data_mutex); | |
2474 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2475 | poll_mask = hotkey_source_mask; |
2476 | event_mask = hotkey_source_mask & | |
2477 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2478 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2479 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2480 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2481 | |
db25f16d HMH |
2482 | while (!kthread_should_stop()) { |
2483 | if (t == 0) { | |
2484 | if (likely(poll_freq)) | |
2485 | t = 1000/poll_freq; | |
2486 | else | |
2487 | t = 100; /* should never happen... */ | |
2488 | } | |
01e88f25 | 2489 | t = msleep_interruptible(t); |
8a32c441 | 2490 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2491 | break; |
8a32c441 TH |
2492 | |
2493 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2494 | continue; |
2495 | ||
2496 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2497 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2498 | /* forget old state on thaw or config change */ |
2499 | si = so; | |
2500 | t = 0; | |
2501 | change_detector = hotkey_config_change; | |
2502 | } | |
0d922e3b HMH |
2503 | poll_mask = hotkey_source_mask; |
2504 | event_mask = hotkey_source_mask & | |
2505 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2506 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2507 | mutex_unlock(&hotkey_thread_data_mutex); |
2508 | ||
0d922e3b HMH |
2509 | if (likely(poll_mask)) { |
2510 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2511 | if (likely(si != so)) { |
2512 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2513 | event_mask); |
01e88f25 HMH |
2514 | } |
2515 | } | |
2516 | ||
2517 | so = si; | |
2518 | si ^= 1; | |
2519 | } | |
2520 | ||
2521 | exit: | |
01e88f25 HMH |
2522 | return 0; |
2523 | } | |
2524 | ||
db25f16d | 2525 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2526 | static void hotkey_poll_stop_sync(void) |
2527 | { | |
2528 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2529 | kthread_stop(tpacpi_hotkey_task); |
2530 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2531 | } |
2532 | } | |
2533 | ||
2534 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2535 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2536 | { |
0d922e3b HMH |
2537 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2538 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2539 | |
0d922e3b HMH |
2540 | if (hotkey_poll_freq > 0 && |
2541 | (poll_driver_mask || | |
2542 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2543 | if (!tpacpi_hotkey_task) { |
2544 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2545 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2546 | if (IS_ERR(tpacpi_hotkey_task)) { |
2547 | tpacpi_hotkey_task = NULL; | |
0978e012 | 2548 | pr_err("could not create kernel thread " |
01e88f25 HMH |
2549 | "for hotkey polling\n"); |
2550 | } | |
2551 | } | |
2552 | } else { | |
2553 | hotkey_poll_stop_sync(); | |
0d922e3b | 2554 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2555 | hotkey_poll_freq == 0) { |
0978e012 JP |
2556 | pr_notice("hot keys 0x%08x and/or events 0x%08x " |
2557 | "require polling, which is currently " | |
2558 | "disabled\n", | |
2559 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2560 | } |
2561 | } | |
2562 | } | |
2563 | ||
7f0cf712 | 2564 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2565 | { |
2566 | mutex_lock(&hotkey_mutex); | |
2567 | hotkey_poll_setup(may_warn); | |
2568 | mutex_unlock(&hotkey_mutex); | |
2569 | } | |
2570 | ||
db25f16d HMH |
2571 | /* call with hotkey_mutex held */ |
2572 | static void hotkey_poll_set_freq(unsigned int freq) | |
2573 | { | |
2574 | if (!freq) | |
2575 | hotkey_poll_stop_sync(); | |
2576 | ||
db25f16d | 2577 | hotkey_poll_freq = freq; |
db25f16d HMH |
2578 | } |
2579 | ||
1bc6b9cd HMH |
2580 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2581 | ||
7f0cf712 HMH |
2582 | static void hotkey_poll_setup(const bool __unused) |
2583 | { | |
2584 | } | |
2585 | ||
2586 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2587 | { |
2588 | } | |
2589 | ||
2590 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2591 | ||
01e88f25 HMH |
2592 | static int hotkey_inputdev_open(struct input_dev *dev) |
2593 | { | |
2594 | switch (tpacpi_lifecycle) { | |
2595 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2596 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2597 | hotkey_poll_setup_safe(false); |
01e88f25 | 2598 | return 0; |
b589ea4c HMH |
2599 | case TPACPI_LIFE_EXITING: |
2600 | return -EBUSY; | |
01e88f25 HMH |
2601 | } |
2602 | ||
2603 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2604 | BUG(); | |
2605 | return -EBUSY; | |
2606 | } | |
2607 | ||
2608 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2609 | { | |
2610 | /* disable hotkey polling when possible */ | |
b589ea4c | 2611 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2612 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2613 | hotkey_poll_setup_safe(false); |
01e88f25 | 2614 | } |
01e88f25 | 2615 | |
a0416420 HMH |
2616 | /* sysfs hotkey enable ------------------------------------------------- */ |
2617 | static ssize_t hotkey_enable_show(struct device *dev, | |
2618 | struct device_attribute *attr, | |
2619 | char *buf) | |
2620 | { | |
ae92bd17 | 2621 | int res, status; |
a0416420 | 2622 | |
2586d566 HMH |
2623 | printk_deprecated_attribute("hotkey_enable", |
2624 | "Hotkey reporting is always enabled"); | |
2625 | ||
b2c985e7 | 2626 | res = hotkey_status_get(&status); |
a0416420 HMH |
2627 | if (res) |
2628 | return res; | |
2629 | ||
2630 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2631 | } | |
2632 | ||
2633 | static ssize_t hotkey_enable_store(struct device *dev, | |
2634 | struct device_attribute *attr, | |
2635 | const char *buf, size_t count) | |
2636 | { | |
2637 | unsigned long t; | |
2586d566 HMH |
2638 | |
2639 | printk_deprecated_attribute("hotkey_enable", | |
2640 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2641 | |
2642 | if (parse_strtoul(buf, 1, &t)) | |
2643 | return -EINVAL; | |
2644 | ||
2586d566 HMH |
2645 | if (t == 0) |
2646 | return -EPERM; | |
a0416420 | 2647 | |
2586d566 | 2648 | return count; |
a0416420 HMH |
2649 | } |
2650 | ||
2651 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 2652 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2653 | hotkey_enable_show, hotkey_enable_store); |
2654 | ||
2655 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2656 | static ssize_t hotkey_mask_show(struct device *dev, | |
2657 | struct device_attribute *attr, | |
2658 | char *buf) | |
2659 | { | |
0d922e3b | 2660 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2661 | } |
2662 | ||
2663 | static ssize_t hotkey_mask_store(struct device *dev, | |
2664 | struct device_attribute *attr, | |
2665 | const char *buf, size_t count) | |
2666 | { | |
2667 | unsigned long t; | |
b2c985e7 | 2668 | int res; |
a0416420 | 2669 | |
ae92bd17 | 2670 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2671 | return -EINVAL; |
2672 | ||
7646ea88 | 2673 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2674 | return -ERESTARTSYS; |
2675 | ||
0d922e3b | 2676 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2677 | |
2678 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2679 | hotkey_poll_setup(true); |
01e88f25 HMH |
2680 | #endif |
2681 | ||
b2c985e7 | 2682 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2683 | |
56e2c200 HMH |
2684 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2685 | ||
a0416420 HMH |
2686 | return (res) ? res : count; |
2687 | } | |
2688 | ||
2689 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 2690 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2691 | hotkey_mask_show, hotkey_mask_store); |
2692 | ||
2693 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2694 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2695 | struct device_attribute *attr, | |
2696 | char *buf) | |
2697 | { | |
2586d566 | 2698 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2699 | } |
2700 | ||
2701 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 2702 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
2703 | |
2704 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2705 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2706 | struct device_attribute *attr, | |
2707 | char *buf) | |
2708 | { | |
06777be6 HMH |
2709 | printk_deprecated_attribute("hotkey_bios_mask", |
2710 | "This attribute is useless."); | |
ae92bd17 | 2711 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2712 | } |
2713 | ||
2714 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 2715 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 2716 | |
9b010de5 HMH |
2717 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2718 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2719 | struct device_attribute *attr, | |
2720 | char *buf) | |
2721 | { | |
01e88f25 HMH |
2722 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2723 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2724 | } |
2725 | ||
2726 | static struct device_attribute dev_attr_hotkey_all_mask = | |
2727 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
2728 | ||
2729 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2730 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2731 | struct device_attribute *attr, | |
2732 | char *buf) | |
2733 | { | |
2734 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2735 | (hotkey_all_mask | hotkey_source_mask) |
2736 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2737 | } |
2738 | ||
2739 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
2740 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
2741 | hotkey_recommended_mask_show, NULL); | |
2742 | ||
01e88f25 HMH |
2743 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2744 | ||
2745 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2746 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2747 | struct device_attribute *attr, | |
2748 | char *buf) | |
2749 | { | |
2750 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2751 | } | |
2752 | ||
2753 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2754 | struct device_attribute *attr, | |
2755 | const char *buf, size_t count) | |
2756 | { | |
2757 | unsigned long t; | |
0d922e3b HMH |
2758 | u32 r_ev; |
2759 | int rc; | |
01e88f25 HMH |
2760 | |
2761 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2762 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2763 | return -EINVAL; | |
2764 | ||
7646ea88 | 2765 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2766 | return -ERESTARTSYS; |
2767 | ||
2768 | HOTKEY_CONFIG_CRITICAL_START | |
2769 | hotkey_source_mask = t; | |
2770 | HOTKEY_CONFIG_CRITICAL_END | |
2771 | ||
0d922e3b HMH |
2772 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2773 | ~hotkey_source_mask); | |
db25f16d | 2774 | hotkey_poll_setup(true); |
0d922e3b HMH |
2775 | |
2776 | /* check if events needed by the driver got disabled */ | |
2777 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2778 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2779 | |
2780 | mutex_unlock(&hotkey_mutex); | |
2781 | ||
0d922e3b | 2782 | if (rc < 0) |
0978e012 JP |
2783 | pr_err("hotkey_source_mask: " |
2784 | "failed to update the firmware event mask!\n"); | |
0d922e3b HMH |
2785 | |
2786 | if (r_ev) | |
0978e012 JP |
2787 | pr_notice("hotkey_source_mask: " |
2788 | "some important events were disabled: 0x%04x\n", | |
2789 | r_ev); | |
0d922e3b | 2790 | |
56e2c200 HMH |
2791 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2792 | ||
0d922e3b | 2793 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2794 | } |
2795 | ||
2796 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2797 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2798 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2799 | ||
2800 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2801 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2802 | struct device_attribute *attr, | |
2803 | char *buf) | |
2804 | { | |
2805 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2806 | } | |
2807 | ||
2808 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2809 | struct device_attribute *attr, | |
2810 | const char *buf, size_t count) | |
2811 | { | |
2812 | unsigned long t; | |
2813 | ||
2814 | if (parse_strtoul(buf, 25, &t)) | |
2815 | return -EINVAL; | |
2816 | ||
7646ea88 | 2817 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2818 | return -ERESTARTSYS; |
2819 | ||
db25f16d HMH |
2820 | hotkey_poll_set_freq(t); |
2821 | hotkey_poll_setup(true); | |
01e88f25 | 2822 | |
01e88f25 HMH |
2823 | mutex_unlock(&hotkey_mutex); |
2824 | ||
56e2c200 HMH |
2825 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2826 | ||
01e88f25 HMH |
2827 | return count; |
2828 | } | |
2829 | ||
2830 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2831 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2832 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2833 | ||
2834 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2835 | ||
50ebec09 | 2836 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2837 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2838 | struct device_attribute *attr, | |
2839 | char *buf) | |
2840 | { | |
19d337df JB |
2841 | int res; |
2842 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2843 | if (res < 0) |
2844 | return res; | |
2845 | ||
19d337df JB |
2846 | /* Opportunistic update */ |
2847 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2848 | ||
2849 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2850 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2851 | } |
2852 | ||
2853 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2854 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2855 | ||
50ebec09 HMH |
2856 | static void hotkey_radio_sw_notify_change(void) |
2857 | { | |
2858 | if (tp_features.hotkey_wlsw) | |
2859 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2860 | "hotkey_radio_sw"); | |
2861 | } | |
2862 | ||
6c231bd5 HMH |
2863 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2864 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2865 | struct device_attribute *attr, | |
2866 | char *buf) | |
2867 | { | |
2868 | int res, s; | |
2869 | res = hotkey_get_tablet_mode(&s); | |
2870 | if (res < 0) | |
2871 | return res; | |
2872 | ||
2873 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2874 | } | |
2875 | ||
2876 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2877 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2878 | ||
2879 | static void hotkey_tablet_mode_notify_change(void) | |
2880 | { | |
2881 | if (tp_features.hotkey_tablet) | |
2882 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2883 | "hotkey_tablet_mode"); | |
2884 | } | |
2885 | ||
50ebec09 | 2886 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2887 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2888 | struct device_attribute *attr, | |
2889 | char *buf) | |
2890 | { | |
2891 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2892 | } | |
2893 | ||
2894 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2895 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2896 | ||
1d5a2b54 | 2897 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2898 | { |
0d922e3b HMH |
2899 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2900 | "wakeup_reason"); | |
50ebec09 HMH |
2901 | } |
2902 | ||
2903 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2904 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2905 | struct device_attribute *attr, | |
2906 | char *buf) | |
2907 | { | |
2908 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2909 | } | |
2910 | ||
2911 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2912 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2913 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2914 | ||
1d5a2b54 | 2915 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2916 | { |
0d922e3b HMH |
2917 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2918 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2919 | } |
2920 | ||
a0416420 HMH |
2921 | /* --------------------------------------------------------------------- */ |
2922 | ||
ff80f137 HMH |
2923 | static struct attribute *hotkey_attributes[] __initdata = { |
2924 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2925 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2926 | &dev_attr_hotkey_bios_mask.attr, |
0d922e3b HMH |
2927 | &dev_attr_hotkey_wakeup_reason.attr, |
2928 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2929 | &dev_attr_hotkey_mask.attr, |
2930 | &dev_attr_hotkey_all_mask.attr, | |
2931 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2932 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2933 | &dev_attr_hotkey_source_mask.attr, |
2934 | &dev_attr_hotkey_poll_freq.attr, | |
2935 | #endif | |
ff80f137 HMH |
2936 | }; |
2937 | ||
19d337df JB |
2938 | /* |
2939 | * Sync both the hw and sw blocking state of all switches | |
2940 | */ | |
733e27c1 HMH |
2941 | static void tpacpi_send_radiosw_update(void) |
2942 | { | |
2943 | int wlsw; | |
2944 | ||
19d337df JB |
2945 | /* |
2946 | * We must sync all rfkill controllers *before* issuing any | |
2947 | * rfkill input events, or we will race the rfkill core input | |
2948 | * handler. | |
2949 | * | |
c8440336 | 2950 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
2951 | * for the above. |
2952 | * | |
2953 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
2954 | */ | |
2955 | ||
2956 | wlsw = hotkey_get_wlsw(); | |
2957 | ||
2958 | /* Sync hw blocking state first if it is hw-blocked */ | |
2959 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
2960 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 2961 | |
19d337df JB |
2962 | /* Sync sw blocking state */ |
2963 | tpacpi_rfk_update_swstate_all(); | |
2964 | ||
2965 | /* Sync hw blocking state last if it is hw-unblocked */ | |
2966 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
2967 | tpacpi_rfk_update_hwblock_state(false); | |
2968 | ||
2969 | /* Issue rfkill input event for WLSW switch */ | |
2970 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
2971 | mutex_lock(&tpacpi_inputdev_send_mutex); |
2972 | ||
2973 | input_report_switch(tpacpi_inputdev, | |
19d337df | 2974 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
2975 | input_sync(tpacpi_inputdev); |
2976 | ||
2977 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2978 | } | |
19d337df JB |
2979 | |
2980 | /* | |
2981 | * this can be unconditional, as we will poll state again | |
2982 | * if userspace uses the notify to read data | |
2983 | */ | |
733e27c1 HMH |
2984 | hotkey_radio_sw_notify_change(); |
2985 | } | |
2986 | ||
9c0a76e1 HMH |
2987 | static void hotkey_exit(void) |
2988 | { | |
2989 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2990 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 2991 | hotkey_poll_stop_sync(); |
db25f16d | 2992 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
2993 | #endif |
2994 | ||
2995 | if (hotkey_dev_attributes) | |
2996 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2997 | ||
4be73005 | 2998 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
2999 | "restoring original HKEY status and mask\n"); |
3000 | /* yes, there is a bitwise or below, we want the | |
3001 | * functions to be called even if one of them fail */ | |
3002 | if (((tp_features.hotkey_mask && | |
3003 | hotkey_mask_set(hotkey_orig_mask)) | | |
3004 | hotkey_status_set(false)) != 0) | |
0978e012 | 3005 | pr_err("failed to restore hot key mask " |
4be73005 | 3006 | "to BIOS defaults\n"); |
9c0a76e1 HMH |
3007 | } |
3008 | ||
de4c8cc7 HMH |
3009 | static void __init hotkey_unmap(const unsigned int scancode) |
3010 | { | |
3011 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3012 | clear_bit(hotkey_keycode_map[scancode], | |
3013 | tpacpi_inputdev->keybit); | |
3014 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3015 | } | |
3016 | } | |
3017 | ||
0d922e3b HMH |
3018 | /* |
3019 | * HKEY quirks: | |
3020 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3021 | */ | |
3022 | ||
3023 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3024 | ||
3025 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3026 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3027 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3028 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3029 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3030 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3031 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3032 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3033 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3034 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3035 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3036 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3037 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3038 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3039 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3040 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3041 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3042 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3043 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3044 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3045 | }; | |
3046 | ||
fc6e7568 HMH |
3047 | typedef u16 tpacpi_keymap_entry_t; |
3048 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3049 | |
a5763f22 | 3050 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3051 | { |
0f089147 HMH |
3052 | /* Requirements for changing the default keymaps: |
3053 | * | |
3054 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3055 | * good reasons. Do not change them unless you have deep | |
3056 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3057 | * the various ThinkPad models. The driver behaves | |
3058 | * differently for KEY_RESERVED: such keys have their | |
3059 | * hot key mask *unset* in mask_recommended, and also | |
3060 | * in the initial hot key mask programmed into the | |
3061 | * firmware at driver load time, which means the firm- | |
3062 | * ware may react very differently if you change them to | |
3063 | * something else; | |
3064 | * | |
3065 | * 2. You must be subscribed to the linux-thinkpad and | |
3066 | * ibm-acpi-devel mailing lists, and you should read the | |
3067 | * list archives since 2007 if you want to change the | |
3068 | * keymaps. This requirement exists so that you will | |
3069 | * know the past history of problems with the thinkpad- | |
3070 | * acpi driver keymaps, and also that you will be | |
3071 | * listening to any bug reports; | |
3072 | * | |
3073 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3074 | * for merging, *ever*. Send them to the linux-acpi | |
3075 | * mailinglist for comments. Merging is to be done only | |
3076 | * through acpi-test and the ACPI maintainer. | |
3077 | * | |
3078 | * If the above is too much to ask, don't change the keymap. | |
3079 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3080 | */ | |
d1e14dca HMH |
3081 | |
3082 | enum keymap_index { | |
3083 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3084 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3085 | }; | |
3086 | ||
3087 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3088 | /* Generic keymap for IBM ThinkPads */ | |
3089 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3090 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3091 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3092 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3093 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3094 | |
3095 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3096 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3097 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3098 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3099 | |
0d922e3b | 3100 | /* brightness: firmware always reacts to them */ |
e927c08d | 3101 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3102 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3103 | |
3104 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3105 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3106 | |
edf0e0e5 HMH |
3107 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3108 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3109 | |
3110 | /* Volume: firmware always react to it and reprograms | |
3111 | * the built-in *extra* mixer. Never map it to control | |
3112 | * another mixer by default. */ | |
e927c08d HMH |
3113 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3114 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3115 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3116 | |
edf0e0e5 | 3117 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3118 | |
edf0e0e5 HMH |
3119 | /* (assignments unknown, please report if found) */ |
3120 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3121 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
d1e14dca HMH |
3122 | }, |
3123 | ||
3124 | /* Generic keymap for Lenovo ThinkPads */ | |
3125 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3126 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3127 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3128 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3129 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3130 | |
3131 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3132 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3133 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3134 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3135 | |
de4c8cc7 HMH |
3136 | /* These should be enabled --only-- when ACPI video |
3137 | * is disabled (i.e. in "vendor" mode), and are handled | |
3138 | * in a special way by the init code */ | |
3139 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3140 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3141 | |
edf0e0e5 | 3142 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3143 | |
edf0e0e5 HMH |
3144 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3145 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3146 | |
3147 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3148 | * react to it and reprograms the built-in *extra* mixer. | |
3149 | * Never map it to control another mixer by default. | |
3150 | * | |
3151 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3152 | * these over the regular keyboard, so these are no-ops, | |
3153 | * but there are still weird bugs re. MUTE, so do not | |
3154 | * change unless you get test reports from all Lenovo | |
3155 | * models. May cause the BIOS to interfere with the | |
3156 | * HDA mixer. | |
3157 | */ | |
e927c08d HMH |
3158 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3159 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3160 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3161 | |
edf0e0e5 | 3162 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3163 | |
33009557 AL |
3164 | /* (assignments unknown, please report if found) */ |
3165 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3166 | ||
3167 | /* | |
3168 | * The mic mute button only sends 0x1a. It does not | |
3169 | * automatically mute the mic or change the mute light. | |
3170 | */ | |
3171 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3172 | ||
edf0e0e5 | 3173 | /* (assignments unknown, please report if found) */ |
33009557 | 3174 | KEY_UNKNOWN, |
8b9dd4fa HG |
3175 | |
3176 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3177 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
d1e14dca | 3178 | }, |
edf0e0e5 HMH |
3179 | }; |
3180 | ||
d1e14dca HMH |
3181 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3182 | /* Generic maps (fallback) */ | |
3183 | { | |
3184 | .vendor = PCI_VENDOR_ID_IBM, | |
3185 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3186 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3187 | }, | |
3188 | { | |
3189 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3190 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3191 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3192 | }, | |
3193 | }; | |
3194 | ||
3195 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3196 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3197 | |
6a38abbf | 3198 | int res, i; |
74941a69 | 3199 | int status; |
1b6521dc | 3200 | int hkeyv; |
d89a727a HMH |
3201 | bool radiosw_state = false; |
3202 | bool tabletsw_state = false; | |
b86c4722 | 3203 | |
0d922e3b | 3204 | unsigned long quirks; |
d1e14dca | 3205 | unsigned long keymap_id; |
0d922e3b | 3206 | |
56e2c200 HMH |
3207 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3208 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3209 | |
6a38abbf | 3210 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3211 | BUG_ON(tpacpi_inputdev->open != NULL || |
3212 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3213 | |
e0c7dfe7 | 3214 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3215 | mutex_init(&hotkey_mutex); |
5fba344c | 3216 | |
01e88f25 | 3217 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3218 | mutex_init(&hotkey_thread_data_mutex); |
3219 | #endif | |
3220 | ||
56b6aeb0 | 3221 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3222 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3223 | |
56e2c200 HMH |
3224 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3225 | "hotkeys are %s\n", | |
d8fd94d9 | 3226 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3227 | |
9c0a76e1 HMH |
3228 | if (!tp_features.hotkey) |
3229 | return 1; | |
a0416420 | 3230 | |
0d922e3b HMH |
3231 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3232 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3233 | ||
d64c81c4 HMH |
3234 | tpacpi_disable_brightness_delay(); |
3235 | ||
0d922e3b HMH |
3236 | /* MUST have enough space for all attributes to be added to |
3237 | * hotkey_dev_attributes */ | |
3238 | hotkey_dev_attributes = create_attr_set( | |
3239 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3240 | NULL); | |
9c0a76e1 HMH |
3241 | if (!hotkey_dev_attributes) |
3242 | return -ENOMEM; | |
3243 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3244 | hotkey_attributes, | |
3245 | ARRAY_SIZE(hotkey_attributes)); | |
3246 | if (res) | |
3247 | goto err_exit; | |
3248 | ||
0d922e3b | 3249 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3250 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3251 | for HKEY interface version 0x100 */ | |
3252 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3253 | if ((hkeyv >> 8) != 1) { | |
0978e012 JP |
3254 | pr_err("unknown version of the HKEY interface: 0x%x\n", |
3255 | hkeyv); | |
3256 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
9c0a76e1 HMH |
3257 | } else { |
3258 | /* | |
3259 | * MHKV 0x100 in A31, R40, R40e, | |
3260 | * T4x, X31, and later | |
3261 | */ | |
56e2c200 HMH |
3262 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3263 | "firmware HKEY interface version: 0x%x\n", | |
3264 | hkeyv); | |
0d922e3b HMH |
3265 | |
3266 | /* Paranoia check AND init hotkey_all_mask */ | |
3267 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3268 | "MHKA", "qd")) { | |
0978e012 | 3269 | pr_err("missing MHKA handler, " |
0d922e3b HMH |
3270 | "please report this to %s\n", |
3271 | TPACPI_MAIL); | |
3272 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3273 | hotkey_all_mask = 0x080cU; | |
3274 | } else { | |
3275 | tp_features.hotkey_mask = 1; | |
3276 | } | |
1b6521dc | 3277 | } |
9c0a76e1 | 3278 | } |
56b6aeb0 | 3279 | |
56e2c200 HMH |
3280 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3281 | "hotkey masks are %s\n", | |
9c0a76e1 | 3282 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3283 | |
0d922e3b HMH |
3284 | /* Init hotkey_all_mask if not initialized yet */ |
3285 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3286 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3287 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3288 | |
0d922e3b | 3289 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3290 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3291 | /* hotkey_source_mask *must* be zero for |
3292 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3293 | res = hotkey_mask_get(); |
3294 | if (res) | |
3295 | goto err_exit; | |
3296 | ||
0d922e3b HMH |
3297 | hotkey_orig_mask = hotkey_acpi_mask; |
3298 | } else { | |
3299 | hotkey_orig_mask = hotkey_all_mask; | |
3300 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3301 | } |
74941a69 | 3302 | |
a73f3091 HMH |
3303 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3304 | if (dbg_wlswemul) { | |
3305 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3306 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3307 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3308 | } else |
3309 | #endif | |
9c0a76e1 HMH |
3310 | /* Not all thinkpads have a hardware radio switch */ |
3311 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3312 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3313 | radiosw_state = !!status; |
0978e012 | 3314 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3315 | enabled(status, 0)); |
3a872080 HMH |
3316 | } |
3317 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3318 | res = add_to_attr_set(hotkey_dev_attributes, |
3319 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3320 | |
9c0a76e1 HMH |
3321 | /* For X41t, X60t, X61t Tablets... */ |
3322 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3323 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3324 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
0978e012 | 3325 | pr_info("possible tablet mode switch found; " |
9c0a76e1 | 3326 | "ThinkPad in %s mode\n", |
d89a727a | 3327 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3328 | res = add_to_attr_set(hotkey_dev_attributes, |
3329 | &dev_attr_hotkey_tablet_mode.attr); | |
3330 | } | |
6c231bd5 | 3331 | |
9c0a76e1 HMH |
3332 | if (!res) |
3333 | res = register_attr_set_with_sysfs( | |
3334 | hotkey_dev_attributes, | |
3335 | &tpacpi_pdev->dev.kobj); | |
3336 | if (res) | |
3337 | goto err_exit; | |
6a38abbf | 3338 | |
9c0a76e1 | 3339 | /* Set up key map */ |
9c0a76e1 HMH |
3340 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3341 | GFP_KERNEL); | |
3342 | if (!hotkey_keycode_map) { | |
0978e012 | 3343 | pr_err("failed to allocate memory for key map\n"); |
9c0a76e1 HMH |
3344 | res = -ENOMEM; |
3345 | goto err_exit; | |
3346 | } | |
edf0e0e5 | 3347 | |
d1e14dca HMH |
3348 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3349 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3350 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3351 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3352 | "using keymap number %lu\n", keymap_id); | |
3353 | ||
3354 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3355 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3356 | |
792979c8 | 3357 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3358 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3359 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3360 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3361 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3362 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3363 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3364 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3365 | } else { |
3366 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3367 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3368 | } |
9c0a76e1 | 3369 | } |
6a38abbf | 3370 | |
9c0a76e1 | 3371 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3372 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3373 | input_report_switch(tpacpi_inputdev, |
3374 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3375 | } |
3376 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3377 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3378 | input_report_switch(tpacpi_inputdev, |
3379 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3380 | } |
5c29d58f | 3381 | |
9c0a76e1 | 3382 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3383 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3384 | * been called before this point */ | |
ff413195 | 3385 | if (acpi_video_backlight_support()) { |
0978e012 JP |
3386 | pr_info("This ThinkPad has standard ACPI backlight " |
3387 | "brightness control, supported by the ACPI " | |
3388 | "video driver\n"); | |
3389 | pr_notice("Disabling thinkpad-acpi brightness events " | |
3390 | "by default...\n"); | |
9c0a76e1 | 3391 | |
de4c8cc7 HMH |
3392 | /* Disable brightness up/down on Lenovo thinkpads when |
3393 | * ACPI is handling them, otherwise it is plain impossible | |
3394 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3395 | hotkey_reserved_mask |= |
3396 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3397 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3398 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3399 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3400 | } |
ff80f137 | 3401 | |
230d8cf2 | 3402 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3403 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3404 | & ~hotkey_all_mask | |
3405 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3406 | |
3407 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3408 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3409 | hotkey_source_mask, hotkey_poll_freq); | |
3410 | #endif | |
3411 | ||
56e2c200 HMH |
3412 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3413 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3414 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3415 | if (res) { |
3416 | hotkey_exit(); | |
3417 | return res; | |
3418 | } | |
0d922e3b HMH |
3419 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3420 | | hotkey_driver_mask) | |
3421 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3422 | if (res < 0 && res != -ENXIO) { |
3423 | hotkey_exit(); | |
3424 | return res; | |
3425 | } | |
0d922e3b HMH |
3426 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3427 | & ~hotkey_reserved_mask; | |
3428 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3429 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3430 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3431 | |
9c0a76e1 HMH |
3432 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3433 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3434 | |
db25f16d | 3435 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3436 | |
9c0a76e1 | 3437 | return 0; |
01e88f25 | 3438 | |
9c0a76e1 HMH |
3439 | err_exit: |
3440 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3441 | hotkey_dev_attributes = NULL; | |
a0416420 | 3442 | |
9c0a76e1 | 3443 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
3444 | } |
3445 | ||
3a9d20bd SS |
3446 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3447 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3448 | * We support Home mode and Function mode currently. | |
3449 | * | |
3450 | * Will consider support rest of modes in future. | |
3451 | * | |
3452 | */ | |
3453 | enum ADAPTIVE_KEY_MODE { | |
3454 | HOME_MODE, | |
3455 | WEB_BROWSER_MODE, | |
3456 | WEB_CONFERENCE_MODE, | |
3457 | FUNCTION_MODE, | |
3458 | LAYFLAT_MODE | |
3459 | }; | |
3460 | ||
3461 | const int adaptive_keyboard_modes[] = { | |
3462 | HOME_MODE, | |
3463 | /* WEB_BROWSER_MODE = 2, | |
3464 | WEB_CONFERENCE_MODE = 3, */ | |
3465 | FUNCTION_MODE | |
3466 | }; | |
3467 | ||
3468 | #define DFR_CHANGE_ROW 0x101 | |
3469 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
3470 | ||
3471 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3472 | * release Fn key, previous mode be restored. | |
3473 | */ | |
3474 | static bool adaptive_keyboard_mode_is_saved; | |
3475 | static int adaptive_keyboard_prev_mode; | |
3476 | ||
3477 | static int adaptive_keyboard_get_next_mode(int mode) | |
3478 | { | |
3479 | size_t i; | |
3480 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3481 | ||
3482 | for (i = 0; i <= max_mode; i++) { | |
3483 | if (adaptive_keyboard_modes[i] == mode) | |
3484 | break; | |
3485 | } | |
3486 | ||
3487 | if (i >= max_mode) | |
3488 | i = 0; | |
3489 | else | |
3490 | i++; | |
3491 | ||
3492 | return adaptive_keyboard_modes[i]; | |
3493 | } | |
3494 | ||
3495 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3496 | { | |
3497 | u32 current_mode = 0; | |
3498 | int new_mode = 0; | |
3499 | ||
3500 | switch (scancode) { | |
3501 | case DFR_CHANGE_ROW: | |
3502 | if (adaptive_keyboard_mode_is_saved) { | |
3503 | new_mode = adaptive_keyboard_prev_mode; | |
3504 | adaptive_keyboard_mode_is_saved = false; | |
3505 | } else { | |
3506 | if (!acpi_evalf( | |
3507 | hkey_handle, ¤t_mode, | |
3508 | "GTRW", "dd", 0)) { | |
3509 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3510 | return false; | |
3511 | } else { | |
3512 | new_mode = adaptive_keyboard_get_next_mode( | |
3513 | current_mode); | |
3514 | } | |
3515 | } | |
3516 | ||
3517 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3518 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3519 | return false; | |
3520 | } | |
3521 | ||
3522 | return true; | |
3523 | ||
3524 | case DFR_SHOW_QUICKVIEW_ROW: | |
3525 | if (!acpi_evalf(hkey_handle, | |
3526 | &adaptive_keyboard_prev_mode, | |
3527 | "GTRW", "dd", 0)) { | |
3528 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3529 | return false; | |
3530 | } else { | |
3531 | adaptive_keyboard_mode_is_saved = true; | |
3532 | ||
3533 | if (!acpi_evalf(hkey_handle, | |
3534 | NULL, "STRW", "vd", FUNCTION_MODE)) { | |
3535 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3536 | return false; | |
3537 | } | |
3538 | } | |
3539 | return true; | |
3540 | ||
3541 | default: | |
3542 | return false; | |
3543 | } | |
3544 | } | |
3545 | ||
3827e7a3 HMH |
3546 | static bool hotkey_notify_hotkey(const u32 hkey, |
3547 | bool *send_acpi_ev, | |
3548 | bool *ignore_acpi_ev) | |
3549 | { | |
3550 | /* 0x1000-0x1FFF: key presses */ | |
3551 | unsigned int scancode = hkey & 0xfff; | |
3552 | *send_acpi_ev = true; | |
3553 | *ignore_acpi_ev = false; | |
3554 | ||
34a656d2 HMH |
3555 | /* HKEY event 0x1001 is scancode 0x00 */ |
3556 | if (scancode > 0 && scancode <= TPACPI_HOTKEY_MAP_LEN) { | |
3827e7a3 HMH |
3557 | scancode--; |
3558 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3559 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3560 | *send_acpi_ev = false; |
3561 | } else { | |
3562 | *ignore_acpi_ev = true; | |
3563 | } | |
3564 | return true; | |
3a9d20bd SS |
3565 | } else { |
3566 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); | |
3827e7a3 HMH |
3567 | } |
3568 | return false; | |
3569 | } | |
3570 | ||
3571 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3572 | bool *send_acpi_ev, | |
3573 | bool *ignore_acpi_ev) | |
3574 | { | |
3575 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3576 | *send_acpi_ev = true; | |
3577 | *ignore_acpi_ev = false; | |
3578 | ||
3579 | switch (hkey) { | |
67bcae6e HMH |
3580 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3581 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3582 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3583 | *ignore_acpi_ev = true; | |
3584 | break; | |
3585 | ||
67bcae6e HMH |
3586 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3587 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3588 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3589 | *ignore_acpi_ev = true; | |
3590 | break; | |
3591 | ||
67bcae6e HMH |
3592 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3593 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3594 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3595 | /* how to auto-heal: */ |
3596 | /* 2313: woke up from S3, go to S4/S5 */ | |
3597 | /* 2413: woke up from S4, go to S5 */ | |
3598 | break; | |
3599 | ||
3827e7a3 HMH |
3600 | default: |
3601 | return false; | |
3602 | } | |
3603 | ||
3604 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3605 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3606 | hotkey_wakeup_reason_notify_change(); |
3607 | } | |
3608 | return true; | |
3609 | } | |
3610 | ||
a50245af HMH |
3611 | static bool hotkey_notify_dockevent(const u32 hkey, |
3612 | bool *send_acpi_ev, | |
3613 | bool *ignore_acpi_ev) | |
3614 | { | |
3615 | /* 0x4000-0x4FFF: dock-related events */ | |
3616 | *send_acpi_ev = true; | |
3617 | *ignore_acpi_ev = false; | |
3618 | ||
3619 | switch (hkey) { | |
3620 | case TP_HKEY_EV_UNDOCK_ACK: | |
3621 | /* ACPI undock operation completed after wakeup */ | |
3622 | hotkey_autosleep_ack = 1; | |
3623 | pr_info("undocked\n"); | |
3624 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3625 | return true; | |
3626 | ||
3627 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3628 | pr_info("docked into hotplug port replicator\n"); | |
3629 | return true; | |
3630 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3631 | pr_info("undocked from hotplug port replicator\n"); | |
3632 | return true; | |
3633 | ||
3634 | default: | |
3635 | return false; | |
3636 | } | |
3637 | } | |
3638 | ||
3827e7a3 HMH |
3639 | static bool hotkey_notify_usrevent(const u32 hkey, |
3640 | bool *send_acpi_ev, | |
3641 | bool *ignore_acpi_ev) | |
3642 | { | |
3643 | /* 0x5000-0x5FFF: human interface helpers */ | |
3644 | *send_acpi_ev = true; | |
3645 | *ignore_acpi_ev = false; | |
3646 | ||
3647 | switch (hkey) { | |
67bcae6e HMH |
3648 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3649 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3650 | return true; |
3651 | ||
67bcae6e HMH |
3652 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3653 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3654 | tpacpi_input_send_tabletsw(); |
3655 | hotkey_tablet_mode_notify_change(); | |
3656 | *send_acpi_ev = false; | |
3657 | return true; | |
3658 | ||
67bcae6e HMH |
3659 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3660 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3661 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3662 | /* do not propagate these events */ |
3827e7a3 HMH |
3663 | *ignore_acpi_ev = true; |
3664 | return true; | |
3665 | ||
3666 | default: | |
3667 | return false; | |
3668 | } | |
3669 | } | |
3670 | ||
9ebd9e83 HMH |
3671 | static void thermal_dump_all_sensors(void); |
3672 | ||
2d43f671 | 3673 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
3674 | bool *send_acpi_ev, |
3675 | bool *ignore_acpi_ev) | |
3676 | { | |
9ebd9e83 HMH |
3677 | bool known = true; |
3678 | ||
2d43f671 | 3679 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
3680 | *send_acpi_ev = true; |
3681 | *ignore_acpi_ev = false; | |
3682 | ||
3683 | switch (hkey) { | |
9ebd9e83 | 3684 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
0978e012 | 3685 | pr_info("EC reports that Thermal Table has changed\n"); |
9ebd9e83 HMH |
3686 | /* recommended action: do nothing, we don't have |
3687 | * Lenovo ATM information */ | |
3688 | return true; | |
67bcae6e | 3689 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 3690 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 3691 | /* recommended action: warn user through gui */ |
9ebd9e83 | 3692 | break; |
67bcae6e | 3693 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 3694 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 3695 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3696 | break; |
67bcae6e | 3697 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
0978e012 | 3698 | pr_crit("THERMAL ALARM: " |
106b4e66 HMH |
3699 | "a sensor reports something is too hot!\n"); |
3700 | /* recommended action: warn user through gui, that */ | |
3701 | /* some internal component is too hot */ | |
9ebd9e83 | 3702 | break; |
67bcae6e | 3703 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
0978e012 JP |
3704 | pr_alert("THERMAL EMERGENCY: " |
3705 | "a sensor reports something is extremely hot!\n"); | |
106b4e66 | 3706 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3707 | break; |
6f62bc3e RH |
3708 | case TP_HKEY_EV_AC_CHANGED: |
3709 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
3710 | * AC status changed; can be triggered by plugging or | |
3711 | * unplugging AC adapter, docking or undocking. */ | |
3712 | ||
3713 | /* fallthrough */ | |
2d43f671 HMH |
3714 | |
3715 | case TP_HKEY_EV_KEY_NUMLOCK: | |
3716 | case TP_HKEY_EV_KEY_FN: | |
3717 | /* key press events, we just ignore them as long as the EC | |
3718 | * is still reporting them in the normal keyboard stream */ | |
3719 | *send_acpi_ev = false; | |
3720 | *ignore_acpi_ev = true; | |
3721 | return true; | |
3722 | ||
106b4e66 | 3723 | default: |
2d43f671 | 3724 | pr_warn("unknown possible thermal alarm or keyboard event received\n"); |
9ebd9e83 | 3725 | known = false; |
106b4e66 | 3726 | } |
9ebd9e83 HMH |
3727 | |
3728 | thermal_dump_all_sensors(); | |
3729 | ||
3730 | return known; | |
106b4e66 HMH |
3731 | } |
3732 | ||
56b6aeb0 HMH |
3733 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3734 | { | |
6a38abbf | 3735 | u32 hkey; |
3827e7a3 HMH |
3736 | bool send_acpi_ev; |
3737 | bool ignore_acpi_ev; | |
3738 | bool known_ev; | |
3eea123d HMH |
3739 | |
3740 | if (event != 0x80) { | |
0978e012 | 3741 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 3742 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3743 | acpi_bus_generate_netlink_event( |
3744 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3745 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3746 | event, 0); |
3eea123d HMH |
3747 | return; |
3748 | } | |
3749 | ||
3750 | while (1) { | |
3751 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 3752 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
3753 | return; |
3754 | } | |
3755 | ||
3756 | if (hkey == 0) { | |
3757 | /* queue empty */ | |
3758 | return; | |
3759 | } | |
3760 | ||
3827e7a3 HMH |
3761 | send_acpi_ev = true; |
3762 | ignore_acpi_ev = false; | |
56b6aeb0 | 3763 | |
ff80f137 HMH |
3764 | switch (hkey >> 12) { |
3765 | case 1: | |
3766 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3767 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3768 | &ignore_acpi_ev); | |
ff80f137 | 3769 | break; |
a713b4d7 | 3770 | case 2: |
3827e7a3 HMH |
3771 | /* 0x2000-0x2FFF: Wakeup reason */ |
3772 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3773 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3774 | break; |
3775 | case 3: | |
3827e7a3 | 3776 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
3777 | switch (hkey) { |
3778 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 3779 | hotkey_autosleep_ack = 1; |
0978e012 | 3780 | pr_info("bay ejected\n"); |
50ebec09 | 3781 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3782 | known_ev = true; |
bf8b29c8 HMH |
3783 | break; |
3784 | case TP_HKEY_EV_OPTDRV_EJ: | |
3785 | /* FIXME: kick libata if SATA link offline */ | |
3786 | known_ev = true; | |
3787 | break; | |
3788 | default: | |
3827e7a3 | 3789 | known_ev = false; |
a713b4d7 HMH |
3790 | } |
3791 | break; | |
3792 | case 4: | |
a50245af HMH |
3793 | /* 0x4000-0x4FFF: dock-related events */ |
3794 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
3795 | &ignore_acpi_ev); | |
a713b4d7 | 3796 | break; |
ff80f137 | 3797 | case 5: |
d1edb2b5 | 3798 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3799 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3800 | &ignore_acpi_ev); | |
ff80f137 | 3801 | break; |
106b4e66 | 3802 | case 6: |
2d43f671 HMH |
3803 | /* 0x6000-0x6FFF: thermal alarms/notices and |
3804 | * keyboard events */ | |
3805 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
3806 | &ignore_acpi_ev); |
3807 | break; | |
ff80f137 HMH |
3808 | case 7: |
3809 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3810 | if (tp_features.hotkey_wlsw && |
3811 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3812 | tpacpi_send_radiosw_update(); |
3b64b51d | 3813 | send_acpi_ev = 0; |
3827e7a3 | 3814 | known_ev = true; |
6a38abbf | 3815 | break; |
6a38abbf | 3816 | } |
ff80f137 HMH |
3817 | /* fallthrough to default */ |
3818 | default: | |
3827e7a3 | 3819 | known_ev = false; |
3b64b51d | 3820 | } |
3827e7a3 | 3821 | if (!known_ev) { |
0978e012 JP |
3822 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
3823 | pr_notice("please report the conditions when this " | |
3824 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3825 | } |
ff80f137 | 3826 | |
3eea123d | 3827 | /* netlink events */ |
3e5ce914 | 3828 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3829 | acpi_bus_generate_netlink_event( |
3830 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3831 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3832 | event, hkey); |
3eea123d | 3833 | } |
56b6aeb0 HMH |
3834 | } |
3835 | } | |
3836 | ||
fd3c3a42 | 3837 | static void hotkey_suspend(void) |
a713b4d7 | 3838 | { |
330947b8 SS |
3839 | int hkeyv; |
3840 | ||
a713b4d7 HMH |
3841 | /* Do these on suspend, we get the events on early resume! */ |
3842 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3843 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
3844 | |
3845 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
3846 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3847 | if ((hkeyv >> 8) == 2) { | |
3848 | if (!acpi_evalf(hkey_handle, | |
3849 | &adaptive_keyboard_prev_mode, | |
3850 | "GTRW", "dd", 0)) { | |
3851 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
3852 | } | |
3853 | } | |
3854 | } | |
a713b4d7 HMH |
3855 | } |
3856 | ||
5c29d58f HMH |
3857 | static void hotkey_resume(void) |
3858 | { | |
330947b8 SS |
3859 | int hkeyv; |
3860 | ||
d64c81c4 HMH |
3861 | tpacpi_disable_brightness_delay(); |
3862 | ||
0d922e3b HMH |
3863 | if (hotkey_status_set(true) < 0 || |
3864 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
0978e012 | 3865 | pr_err("error while attempting to reset the event " |
0d922e3b HMH |
3866 | "firmware interface\n"); |
3867 | ||
733e27c1 | 3868 | tpacpi_send_radiosw_update(); |
6c231bd5 | 3869 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
3870 | hotkey_wakeup_reason_notify_change(); |
3871 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 3872 | hotkey_poll_setup_safe(false); |
330947b8 SS |
3873 | |
3874 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
3875 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3876 | if ((hkeyv >> 8) == 2) { | |
3877 | if (!acpi_evalf(hkey_handle, | |
3878 | NULL, | |
3879 | "STRW", "vd", | |
3880 | adaptive_keyboard_prev_mode)) { | |
3881 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
3882 | } | |
3883 | } | |
3884 | } | |
5c29d58f HMH |
3885 | } |
3886 | ||
a0416420 | 3887 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 3888 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 3889 | { |
ae92bd17 | 3890 | int res, status; |
1da177e4 | 3891 | |
d8fd94d9 | 3892 | if (!tp_features.hotkey) { |
887965e6 AD |
3893 | seq_printf(m, "status:\t\tnot supported\n"); |
3894 | return 0; | |
78f81cc4 BD |
3895 | } |
3896 | ||
7646ea88 | 3897 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3898 | return -ERESTARTSYS; |
b2c985e7 HMH |
3899 | res = hotkey_status_get(&status); |
3900 | if (!res) | |
3901 | res = hotkey_mask_get(); | |
40ca9fdf | 3902 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
3903 | if (res) |
3904 | return res; | |
1da177e4 | 3905 | |
887965e6 | 3906 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 3907 | if (hotkey_all_mask) { |
887965e6 AD |
3908 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
3909 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 3910 | } else { |
887965e6 AD |
3911 | seq_printf(m, "mask:\t\tnot supported\n"); |
3912 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
3913 | } |
3914 | ||
887965e6 | 3915 | return 0; |
1da177e4 LT |
3916 | } |
3917 | ||
406e988b | 3918 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
3919 | { |
3920 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 3921 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
0978e012 JP |
3922 | pr_fmt("hotkey enable/disable functionality has been " |
3923 | "removed from the driver. " | |
3924 | "Hotkeys are always enabled.\n"))) | |
3925 | pr_err("Please remove the hotkey=enable module " | |
3926 | "parameter, it is deprecated. " | |
3927 | "Hotkeys are always enabled.\n"); | |
2586d566 HMH |
3928 | } |
3929 | ||
78f81cc4 | 3930 | static int hotkey_write(char *buf) |
1da177e4 | 3931 | { |
2586d566 | 3932 | int res; |
ae92bd17 | 3933 | u32 mask; |
1da177e4 | 3934 | char *cmd; |
1da177e4 | 3935 | |
d8fd94d9 | 3936 | if (!tp_features.hotkey) |
1da177e4 LT |
3937 | return -ENODEV; |
3938 | ||
7646ea88 | 3939 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3940 | return -ERESTARTSYS; |
40ca9fdf | 3941 | |
0d922e3b | 3942 | mask = hotkey_user_mask; |
78f81cc4 | 3943 | |
40ca9fdf | 3944 | res = 0; |
1da177e4 LT |
3945 | while ((cmd = next_cmd(&buf))) { |
3946 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 3947 | hotkey_enabledisable_warn(1); |
1da177e4 | 3948 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 3949 | hotkey_enabledisable_warn(0); |
2586d566 | 3950 | res = -EPERM; |
1da177e4 | 3951 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
3952 | mask = (hotkey_all_mask | hotkey_source_mask) |
3953 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
3954 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
3955 | /* mask set */ | |
3956 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
3957 | /* mask set */ | |
40ca9fdf HMH |
3958 | } else { |
3959 | res = -EINVAL; | |
3960 | goto errexit; | |
3961 | } | |
1da177e4 | 3962 | } |
56e2c200 | 3963 | |
0d922e3b | 3964 | if (!res) { |
56e2c200 HMH |
3965 | tpacpi_disclose_usertask("procfs hotkey", |
3966 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
3967 | res = hotkey_user_mask_set(mask); |
3968 | } | |
1da177e4 | 3969 | |
40ca9fdf HMH |
3970 | errexit: |
3971 | mutex_unlock(&hotkey_mutex); | |
3972 | return res; | |
78f81cc4 | 3973 | } |
1da177e4 | 3974 | |
1ba90e3a | 3975 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
3976 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
3977 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
1ba90e3a TR |
3978 | {"", 0}, |
3979 | }; | |
3980 | ||
8d376cd6 | 3981 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 3982 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
3983 | .notify = hotkey_notify, |
3984 | .handle = &hkey_handle, | |
3985 | .type = ACPI_DEVICE_NOTIFY, | |
3986 | }; | |
3987 | ||
a5763f22 HMH |
3988 | static struct ibm_struct hotkey_driver_data = { |
3989 | .name = "hotkey", | |
a5763f22 HMH |
3990 | .read = hotkey_read, |
3991 | .write = hotkey_write, | |
3992 | .exit = hotkey_exit, | |
5c29d58f | 3993 | .resume = hotkey_resume, |
a713b4d7 | 3994 | .suspend = hotkey_suspend, |
8d376cd6 | 3995 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
3996 | }; |
3997 | ||
56b6aeb0 HMH |
3998 | /************************************************************************* |
3999 | * Bluetooth subdriver | |
4000 | */ | |
1da177e4 | 4001 | |
f74a27d4 HMH |
4002 | enum { |
4003 | /* ACPI GBDC/SBDC bits */ | |
4004 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4005 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4006 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4007 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4008 | }; |
4009 | ||
4010 | enum { | |
4011 | /* ACPI \BLTH commands */ | |
4012 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4013 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4014 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4015 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4016 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4017 | }; |
4018 | ||
bee4cd9b HMH |
4019 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4020 | ||
19d337df | 4021 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4022 | { |
4023 | int status; | |
4024 | ||
a73f3091 HMH |
4025 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4026 | if (dbg_bluetoothemul) | |
4027 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4028 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4029 | #endif |
4030 | ||
07431ec8 HMH |
4031 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4032 | return -EIO; | |
4033 | ||
0e74dc26 | 4034 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4035 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4036 | } |
4037 | ||
19d337df | 4038 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4039 | { |
4040 | int status; | |
4041 | ||
bee4cd9b | 4042 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4043 | "will attempt to %s bluetooth\n", |
4044 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4045 | |
a73f3091 HMH |
4046 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4047 | if (dbg_bluetoothemul) { | |
19d337df | 4048 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4049 | return 0; |
4050 | } | |
4051 | #endif | |
4052 | ||
19d337df | 4053 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4054 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4055 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4056 | else | |
4057 | status = 0; | |
19d337df | 4058 | |
07431ec8 HMH |
4059 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4060 | return -EIO; | |
4061 | ||
4062 | return 0; | |
4063 | } | |
f74a27d4 | 4064 | |
d3a6ade4 HMH |
4065 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4066 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4067 | struct device_attribute *attr, | |
4068 | char *buf) | |
4069 | { | |
19d337df JB |
4070 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4071 | attr, buf); | |
d3a6ade4 HMH |
4072 | } |
4073 | ||
4074 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4075 | struct device_attribute *attr, | |
4076 | const char *buf, size_t count) | |
4077 | { | |
19d337df JB |
4078 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4079 | attr, buf, count); | |
d3a6ade4 HMH |
4080 | } |
4081 | ||
4082 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 4083 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4084 | bluetooth_enable_show, bluetooth_enable_store); |
4085 | ||
4086 | /* --------------------------------------------------------------------- */ | |
4087 | ||
4088 | static struct attribute *bluetooth_attributes[] = { | |
4089 | &dev_attr_bluetooth_enable.attr, | |
4090 | NULL | |
4091 | }; | |
4092 | ||
4093 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4094 | .attrs = bluetooth_attributes, |
4095 | }; | |
4096 | ||
19d337df JB |
4097 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4098 | .get_status = bluetooth_get_status, | |
4099 | .set_status = bluetooth_set_status, | |
4100 | }; | |
0e74dc26 | 4101 | |
90d9d3c7 HMH |
4102 | static void bluetooth_shutdown(void) |
4103 | { | |
4104 | /* Order firmware to save current state to NVRAM */ | |
4105 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4106 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4107 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4108 | else |
4109 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4110 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4111 | } |
4112 | ||
07431ec8 HMH |
4113 | static void bluetooth_exit(void) |
4114 | { | |
4115 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4116 | &bluetooth_attr_group); | |
19d337df JB |
4117 | |
4118 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4119 | ||
4120 | bluetooth_shutdown(); | |
07431ec8 HMH |
4121 | } |
4122 | ||
a5763f22 | 4123 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4124 | { |
d3a6ade4 | 4125 | int res; |
d6fdd1e9 HMH |
4126 | int status = 0; |
4127 | ||
bee4cd9b HMH |
4128 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4129 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4130 | |
e0c7dfe7 | 4131 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4132 | |
78f81cc4 BD |
4133 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4134 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4135 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4136 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4137 | ||
bee4cd9b HMH |
4138 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4139 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4140 | str_supported(tp_features.bluetooth), |
4141 | status); | |
4142 | ||
a73f3091 HMH |
4143 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4144 | if (dbg_bluetoothemul) { | |
4145 | tp_features.bluetooth = 1; | |
0978e012 | 4146 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4147 | } else |
4148 | #endif | |
3a872080 HMH |
4149 | if (tp_features.bluetooth && |
4150 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4151 | /* no bluetooth hardware present in system */ | |
4152 | tp_features.bluetooth = 0; | |
bee4cd9b | 4153 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4154 | "bluetooth hardware not installed\n"); |
4155 | } | |
4156 | ||
0e74dc26 HMH |
4157 | if (!tp_features.bluetooth) |
4158 | return 1; | |
4159 | ||
0e74dc26 | 4160 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4161 | &bluetooth_tprfk_ops, |
0e74dc26 | 4162 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4163 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4164 | true); |
4165 | if (res) | |
4166 | return res; | |
4167 | ||
4168 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4169 | &bluetooth_attr_group); | |
0e74dc26 | 4170 | if (res) { |
19d337df | 4171 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4172 | return res; |
d6fdd1e9 | 4173 | } |
fe08bc4b | 4174 | |
0e74dc26 | 4175 | return 0; |
1da177e4 LT |
4176 | } |
4177 | ||
d3a6ade4 | 4178 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4179 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4180 | { |
887965e6 | 4181 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4182 | } |
4183 | ||
78f81cc4 | 4184 | static int bluetooth_write(char *buf) |
1da177e4 | 4185 | { |
19d337df | 4186 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4187 | } |
4188 | ||
a5763f22 HMH |
4189 | static struct ibm_struct bluetooth_driver_data = { |
4190 | .name = "bluetooth", | |
4191 | .read = bluetooth_read, | |
4192 | .write = bluetooth_write, | |
d3a6ade4 | 4193 | .exit = bluetooth_exit, |
90d9d3c7 | 4194 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4195 | }; |
4196 | ||
56b6aeb0 HMH |
4197 | /************************************************************************* |
4198 | * Wan subdriver | |
4199 | */ | |
4200 | ||
f74a27d4 HMH |
4201 | enum { |
4202 | /* ACPI GWAN/SWAN bits */ | |
4203 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4204 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4205 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4206 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4207 | }; |
4208 | ||
bee4cd9b HMH |
4209 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4210 | ||
19d337df | 4211 | static int wan_get_status(void) |
07431ec8 HMH |
4212 | { |
4213 | int status; | |
4214 | ||
a73f3091 HMH |
4215 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4216 | if (dbg_wwanemul) | |
4217 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4218 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4219 | #endif |
4220 | ||
07431ec8 HMH |
4221 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4222 | return -EIO; | |
4223 | ||
0e74dc26 | 4224 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4225 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4226 | } |
4227 | ||
19d337df | 4228 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4229 | { |
4230 | int status; | |
4231 | ||
bee4cd9b | 4232 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4233 | "will attempt to %s wwan\n", |
4234 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4235 | |
a73f3091 HMH |
4236 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4237 | if (dbg_wwanemul) { | |
19d337df | 4238 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4239 | return 0; |
4240 | } | |
4241 | #endif | |
4242 | ||
19d337df | 4243 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4244 | status = TP_ACPI_WANCARD_RADIOSSW |
4245 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4246 | else | |
4247 | status = 0; | |
19d337df | 4248 | |
07431ec8 HMH |
4249 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4250 | return -EIO; | |
4251 | ||
4252 | return 0; | |
4253 | } | |
f74a27d4 | 4254 | |
d3a6ade4 HMH |
4255 | /* sysfs wan enable ---------------------------------------------------- */ |
4256 | static ssize_t wan_enable_show(struct device *dev, | |
4257 | struct device_attribute *attr, | |
4258 | char *buf) | |
4259 | { | |
19d337df JB |
4260 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4261 | attr, buf); | |
d3a6ade4 HMH |
4262 | } |
4263 | ||
4264 | static ssize_t wan_enable_store(struct device *dev, | |
4265 | struct device_attribute *attr, | |
4266 | const char *buf, size_t count) | |
4267 | { | |
19d337df JB |
4268 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4269 | attr, buf, count); | |
d3a6ade4 HMH |
4270 | } |
4271 | ||
4272 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 4273 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4274 | wan_enable_show, wan_enable_store); |
4275 | ||
4276 | /* --------------------------------------------------------------------- */ | |
4277 | ||
4278 | static struct attribute *wan_attributes[] = { | |
4279 | &dev_attr_wan_enable.attr, | |
4280 | NULL | |
4281 | }; | |
4282 | ||
4283 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4284 | .attrs = wan_attributes, |
4285 | }; | |
4286 | ||
19d337df JB |
4287 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4288 | .get_status = wan_get_status, | |
4289 | .set_status = wan_set_status, | |
4290 | }; | |
0e74dc26 | 4291 | |
90d9d3c7 HMH |
4292 | static void wan_shutdown(void) |
4293 | { | |
4294 | /* Order firmware to save current state to NVRAM */ | |
4295 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4296 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4297 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4298 | else |
4299 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4300 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4301 | } |
4302 | ||
07431ec8 HMH |
4303 | static void wan_exit(void) |
4304 | { | |
4305 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4306 | &wan_attr_group); | |
19d337df JB |
4307 | |
4308 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4309 | ||
4310 | wan_shutdown(); | |
07431ec8 HMH |
4311 | } |
4312 | ||
a5763f22 | 4313 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4314 | { |
d3a6ade4 | 4315 | int res; |
d6fdd1e9 HMH |
4316 | int status = 0; |
4317 | ||
bee4cd9b HMH |
4318 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4319 | "initializing wan subdriver\n"); | |
fe08bc4b | 4320 | |
e0c7dfe7 | 4321 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4322 | |
d8fd94d9 | 4323 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4324 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4325 | ||
bee4cd9b HMH |
4326 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4327 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4328 | str_supported(tp_features.wan), |
4329 | status); | |
4330 | ||
a73f3091 HMH |
4331 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4332 | if (dbg_wwanemul) { | |
4333 | tp_features.wan = 1; | |
0978e012 | 4334 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4335 | } else |
4336 | #endif | |
3a872080 HMH |
4337 | if (tp_features.wan && |
4338 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4339 | /* no wan hardware present in system */ | |
4340 | tp_features.wan = 0; | |
bee4cd9b | 4341 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4342 | "wan hardware not installed\n"); |
4343 | } | |
4344 | ||
0e74dc26 HMH |
4345 | if (!tp_features.wan) |
4346 | return 1; | |
4347 | ||
0e74dc26 | 4348 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4349 | &wan_tprfk_ops, |
0e74dc26 | 4350 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4351 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4352 | true); |
4353 | if (res) | |
4354 | return res; | |
4355 | ||
4356 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4357 | &wan_attr_group); | |
4358 | ||
0e74dc26 | 4359 | if (res) { |
19d337df | 4360 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4361 | return res; |
d6fdd1e9 | 4362 | } |
fe08bc4b | 4363 | |
0e74dc26 | 4364 | return 0; |
42adb53c JF |
4365 | } |
4366 | ||
d3a6ade4 | 4367 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4368 | static int wan_read(struct seq_file *m) |
42adb53c | 4369 | { |
887965e6 | 4370 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4371 | } |
4372 | ||
4373 | static int wan_write(char *buf) | |
4374 | { | |
19d337df | 4375 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4376 | } |
4377 | ||
a5763f22 HMH |
4378 | static struct ibm_struct wan_driver_data = { |
4379 | .name = "wan", | |
4380 | .read = wan_read, | |
4381 | .write = wan_write, | |
d3a6ade4 | 4382 | .exit = wan_exit, |
90d9d3c7 | 4383 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4384 | }; |
4385 | ||
0045c0aa HMH |
4386 | /************************************************************************* |
4387 | * UWB subdriver | |
4388 | */ | |
4389 | ||
4390 | enum { | |
4391 | /* ACPI GUWB/SUWB bits */ | |
4392 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4393 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4394 | }; | |
4395 | ||
bee4cd9b HMH |
4396 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4397 | ||
19d337df | 4398 | static int uwb_get_status(void) |
0045c0aa HMH |
4399 | { |
4400 | int status; | |
4401 | ||
0045c0aa HMH |
4402 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4403 | if (dbg_uwbemul) | |
4404 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4405 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4406 | #endif |
4407 | ||
4408 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4409 | return -EIO; | |
4410 | ||
4411 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4412 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4413 | } |
4414 | ||
19d337df | 4415 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4416 | { |
4417 | int status; | |
4418 | ||
bee4cd9b | 4419 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4420 | "will attempt to %s UWB\n", |
4421 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4422 | |
0045c0aa HMH |
4423 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4424 | if (dbg_uwbemul) { | |
19d337df | 4425 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4426 | return 0; |
4427 | } | |
4428 | #endif | |
4429 | ||
19d337df JB |
4430 | if (state == TPACPI_RFK_RADIO_ON) |
4431 | status = TP_ACPI_UWB_RADIOSSW; | |
4432 | else | |
4433 | status = 0; | |
4434 | ||
0045c0aa HMH |
4435 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4436 | return -EIO; | |
4437 | ||
0045c0aa HMH |
4438 | return 0; |
4439 | } | |
4440 | ||
4441 | /* --------------------------------------------------------------------- */ | |
4442 | ||
19d337df JB |
4443 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4444 | .get_status = uwb_get_status, | |
4445 | .set_status = uwb_set_status, | |
4446 | }; | |
0045c0aa HMH |
4447 | |
4448 | static void uwb_exit(void) | |
4449 | { | |
19d337df | 4450 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4451 | } |
4452 | ||
4453 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4454 | { | |
4455 | int res; | |
4456 | int status = 0; | |
4457 | ||
bee4cd9b HMH |
4458 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4459 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4460 | |
4461 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4462 | ||
4463 | tp_features.uwb = hkey_handle && | |
4464 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4465 | ||
bee4cd9b HMH |
4466 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4467 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4468 | str_supported(tp_features.uwb), |
4469 | status); | |
4470 | ||
4471 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4472 | if (dbg_uwbemul) { | |
4473 | tp_features.uwb = 1; | |
0978e012 | 4474 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4475 | } else |
4476 | #endif | |
4477 | if (tp_features.uwb && | |
4478 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4479 | /* no uwb hardware present in system */ | |
4480 | tp_features.uwb = 0; | |
4481 | dbg_printk(TPACPI_DBG_INIT, | |
4482 | "uwb hardware not installed\n"); | |
4483 | } | |
4484 | ||
4485 | if (!tp_features.uwb) | |
4486 | return 1; | |
4487 | ||
4488 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4489 | &uwb_tprfk_ops, |
0045c0aa | 4490 | RFKILL_TYPE_UWB, |
bee4cd9b | 4491 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4492 | false); |
0045c0aa HMH |
4493 | return res; |
4494 | } | |
4495 | ||
4496 | static struct ibm_struct uwb_driver_data = { | |
4497 | .name = "uwb", | |
4498 | .exit = uwb_exit, | |
4499 | .flags.experimental = 1, | |
4500 | }; | |
4501 | ||
56b6aeb0 HMH |
4502 | /************************************************************************* |
4503 | * Video subdriver | |
4504 | */ | |
4505 | ||
d7c1d17d HMH |
4506 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4507 | ||
f74a27d4 HMH |
4508 | enum video_access_mode { |
4509 | TPACPI_VIDEO_NONE = 0, | |
4510 | TPACPI_VIDEO_570, /* 570 */ | |
4511 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4512 | TPACPI_VIDEO_NEW, /* all others */ | |
4513 | }; | |
4514 | ||
4515 | enum { /* video status flags, based on VIDEO_570 */ | |
4516 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4517 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4518 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4519 | }; | |
4520 | ||
4521 | enum { /* TPACPI_VIDEO_570 constants */ | |
4522 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4523 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4524 | * video_status_flags */ | |
4525 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4526 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4527 | }; | |
4528 | ||
9a8e1738 HMH |
4529 | static enum video_access_mode video_supported; |
4530 | static int video_orig_autosw; | |
78f81cc4 | 4531 | |
f74a27d4 HMH |
4532 | static int video_autosw_get(void); |
4533 | static int video_autosw_set(int enable); | |
4534 | ||
112a6ee0 JP |
4535 | TPACPI_HANDLE(vid, root, |
4536 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4537 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4538 | "\\_SB.PCI0.VID0", /* 770e */ | |
4539 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4540 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4541 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4542 | ); /* R30, R31 */ | |
4543 | ||
e0c7dfe7 | 4544 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4545 | |
a5763f22 | 4546 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4547 | { |
78f81cc4 BD |
4548 | int ivga; |
4549 | ||
fe08bc4b HMH |
4550 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4551 | ||
e0c7dfe7 | 4552 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4553 | if (tpacpi_is_ibm()) |
4554 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4555 | |
78f81cc4 BD |
4556 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4557 | /* G41, assume IVGA doesn't change */ | |
4558 | vid_handle = vid2_handle; | |
4559 | ||
4560 | if (!vid_handle) | |
4561 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4562 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4563 | else if (tpacpi_is_ibm() && |
4564 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4565 | /* 570 */ |
efa27145 | 4566 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4567 | else if (tpacpi_is_ibm() && |
4568 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4569 | /* 600e/x, 770e, 770x */ |
efa27145 | 4570 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4571 | else |
4572 | /* all others */ | |
efa27145 | 4573 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4574 | |
fe08bc4b HMH |
4575 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4576 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4577 | video_supported); | |
4578 | ||
5fba344c | 4579 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
4580 | } |
4581 | ||
56b6aeb0 HMH |
4582 | static void video_exit(void) |
4583 | { | |
83f34724 HMH |
4584 | dbg_printk(TPACPI_DBG_EXIT, |
4585 | "restoring original video autoswitch mode\n"); | |
4586 | if (video_autosw_set(video_orig_autosw)) | |
0978e012 | 4587 | pr_err("error while trying to restore original " |
83f34724 | 4588 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4589 | } |
4590 | ||
83f34724 | 4591 | static int video_outputsw_get(void) |
1da177e4 LT |
4592 | { |
4593 | int status = 0; | |
4594 | int i; | |
4595 | ||
83f34724 HMH |
4596 | switch (video_supported) { |
4597 | case TPACPI_VIDEO_570: | |
4598 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4599 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4600 | return -EIO; | |
4601 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4602 | break; | |
4603 | case TPACPI_VIDEO_770: | |
4604 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4605 | return -EIO; | |
4606 | if (i) | |
4607 | status |= TP_ACPI_VIDEO_S_LCD; | |
4608 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4609 | return -EIO; | |
4610 | if (i) | |
4611 | status |= TP_ACPI_VIDEO_S_CRT; | |
4612 | break; | |
4613 | case TPACPI_VIDEO_NEW: | |
4614 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4615 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4616 | return -EIO; | |
4617 | if (i) | |
4618 | status |= TP_ACPI_VIDEO_S_CRT; | |
4619 | ||
4620 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4621 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4622 | return -EIO; | |
4623 | if (i) | |
4624 | status |= TP_ACPI_VIDEO_S_LCD; | |
4625 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4626 | return -EIO; | |
4627 | if (i) | |
4628 | status |= TP_ACPI_VIDEO_S_DVI; | |
4629 | break; | |
4630 | default: | |
4631 | return -ENOSYS; | |
78f81cc4 BD |
4632 | } |
4633 | ||
4634 | return status; | |
4635 | } | |
1da177e4 | 4636 | |
83f34724 | 4637 | static int video_outputsw_set(int status) |
78f81cc4 | 4638 | { |
83f34724 HMH |
4639 | int autosw; |
4640 | int res = 0; | |
4641 | ||
4642 | switch (video_supported) { | |
4643 | case TPACPI_VIDEO_570: | |
4644 | res = acpi_evalf(NULL, NULL, | |
4645 | "\\_SB.PHS2", "vdd", | |
4646 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4647 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4648 | break; | |
4649 | case TPACPI_VIDEO_770: | |
4650 | autosw = video_autosw_get(); | |
4651 | if (autosw < 0) | |
4652 | return autosw; | |
1da177e4 | 4653 | |
83f34724 HMH |
4654 | res = video_autosw_set(1); |
4655 | if (res) | |
4656 | return res; | |
4657 | res = acpi_evalf(vid_handle, NULL, | |
4658 | "ASWT", "vdd", status * 0x100, 0); | |
4659 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4660 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
4661 | return -EIO; |
4662 | } | |
4663 | break; | |
4664 | case TPACPI_VIDEO_NEW: | |
4665 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4666 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4667 | break; |
4668 | default: | |
4669 | return -ENOSYS; | |
4670 | } | |
1da177e4 | 4671 | |
83f34724 | 4672 | return (res)? 0 : -EIO; |
1da177e4 LT |
4673 | } |
4674 | ||
83f34724 | 4675 | static int video_autosw_get(void) |
78f81cc4 | 4676 | { |
83f34724 | 4677 | int autosw = 0; |
78f81cc4 | 4678 | |
83f34724 HMH |
4679 | switch (video_supported) { |
4680 | case TPACPI_VIDEO_570: | |
4681 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4682 | return -EIO; | |
4683 | break; | |
4684 | case TPACPI_VIDEO_770: | |
4685 | case TPACPI_VIDEO_NEW: | |
4686 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4687 | return -EIO; | |
4688 | break; | |
4689 | default: | |
4690 | return -ENOSYS; | |
4691 | } | |
78f81cc4 | 4692 | |
83f34724 | 4693 | return autosw & 1; |
78f81cc4 BD |
4694 | } |
4695 | ||
83f34724 | 4696 | static int video_autosw_set(int enable) |
78f81cc4 | 4697 | { |
83f34724 HMH |
4698 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
4699 | return -EIO; | |
4700 | return 0; | |
78f81cc4 BD |
4701 | } |
4702 | ||
83f34724 | 4703 | static int video_outputsw_cycle(void) |
78f81cc4 | 4704 | { |
83f34724 HMH |
4705 | int autosw = video_autosw_get(); |
4706 | int res; | |
78f81cc4 | 4707 | |
83f34724 HMH |
4708 | if (autosw < 0) |
4709 | return autosw; | |
78f81cc4 | 4710 | |
83f34724 HMH |
4711 | switch (video_supported) { |
4712 | case TPACPI_VIDEO_570: | |
4713 | res = video_autosw_set(1); | |
4714 | if (res) | |
4715 | return res; | |
4716 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4717 | break; | |
4718 | case TPACPI_VIDEO_770: | |
4719 | case TPACPI_VIDEO_NEW: | |
4720 | res = video_autosw_set(1); | |
4721 | if (res) | |
4722 | return res; | |
4723 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4724 | break; | |
4725 | default: | |
4726 | return -ENOSYS; | |
4727 | } | |
4728 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4729 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 4730 | return -EIO; |
78f81cc4 BD |
4731 | } |
4732 | ||
83f34724 HMH |
4733 | return (res)? 0 : -EIO; |
4734 | } | |
4735 | ||
4736 | static int video_expand_toggle(void) | |
4737 | { | |
4738 | switch (video_supported) { | |
4739 | case TPACPI_VIDEO_570: | |
4740 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
4741 | 0 : -EIO; | |
4742 | case TPACPI_VIDEO_770: | |
4743 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
4744 | 0 : -EIO; | |
4745 | case TPACPI_VIDEO_NEW: | |
4746 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
4747 | 0 : -EIO; | |
4748 | default: | |
4749 | return -ENOSYS; | |
4750 | } | |
4751 | /* not reached */ | |
78f81cc4 BD |
4752 | } |
4753 | ||
887965e6 | 4754 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4755 | { |
83f34724 | 4756 | int status, autosw; |
56b6aeb0 | 4757 | |
83f34724 | 4758 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4759 | seq_printf(m, "status:\t\tnot supported\n"); |
4760 | return 0; | |
56b6aeb0 HMH |
4761 | } |
4762 | ||
b525c06c HMH |
4763 | /* Even reads can crash X.org, so... */ |
4764 | if (!capable(CAP_SYS_ADMIN)) | |
4765 | return -EPERM; | |
4766 | ||
83f34724 HMH |
4767 | status = video_outputsw_get(); |
4768 | if (status < 0) | |
4769 | return status; | |
4770 | ||
4771 | autosw = video_autosw_get(); | |
4772 | if (autosw < 0) | |
4773 | return autosw; | |
4774 | ||
887965e6 AD |
4775 | seq_printf(m, "status:\t\tsupported\n"); |
4776 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4777 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4778 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4779 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
4780 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4781 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
4782 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4783 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4784 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
4785 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
4786 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 4787 | |
887965e6 | 4788 | return 0; |
56b6aeb0 HMH |
4789 | } |
4790 | ||
78f81cc4 | 4791 | static int video_write(char *buf) |
1da177e4 LT |
4792 | { |
4793 | char *cmd; | |
4794 | int enable, disable, status; | |
83f34724 | 4795 | int res; |
1da177e4 | 4796 | |
83f34724 | 4797 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4798 | return -ENODEV; |
4799 | ||
b525c06c HMH |
4800 | /* Even reads can crash X.org, let alone writes... */ |
4801 | if (!capable(CAP_SYS_ADMIN)) | |
4802 | return -EPERM; | |
4803 | ||
83f34724 HMH |
4804 | enable = 0; |
4805 | disable = 0; | |
1da177e4 LT |
4806 | |
4807 | while ((cmd = next_cmd(&buf))) { | |
4808 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4809 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4810 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4811 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4812 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4813 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4814 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4815 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4816 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4817 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4818 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4819 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4820 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4821 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4822 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4823 | res = video_autosw_set(1); |
4824 | if (res) | |
4825 | return res; | |
1da177e4 | 4826 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4827 | res = video_autosw_set(0); |
4828 | if (res) | |
4829 | return res; | |
1da177e4 | 4830 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4831 | res = video_outputsw_cycle(); |
4832 | if (res) | |
4833 | return res; | |
1da177e4 | 4834 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4835 | res = video_expand_toggle(); |
4836 | if (res) | |
4837 | return res; | |
1da177e4 LT |
4838 | } else |
4839 | return -EINVAL; | |
4840 | } | |
4841 | ||
4842 | if (enable || disable) { | |
83f34724 HMH |
4843 | status = video_outputsw_get(); |
4844 | if (status < 0) | |
4845 | return status; | |
4846 | res = video_outputsw_set((status & ~disable) | enable); | |
4847 | if (res) | |
4848 | return res; | |
1da177e4 LT |
4849 | } |
4850 | ||
4851 | return 0; | |
4852 | } | |
4853 | ||
a5763f22 HMH |
4854 | static struct ibm_struct video_driver_data = { |
4855 | .name = "video", | |
4856 | .read = video_read, | |
4857 | .write = video_write, | |
4858 | .exit = video_exit, | |
4859 | }; | |
4860 | ||
d7c1d17d HMH |
4861 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4862 | ||
56b6aeb0 HMH |
4863 | /************************************************************************* |
4864 | * Light (thinklight) subdriver | |
4865 | */ | |
1da177e4 | 4866 | |
e0c7dfe7 HMH |
4867 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4868 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4869 | |
4fa6811b HMH |
4870 | static int light_get_status(void) |
4871 | { | |
4872 | int status = 0; | |
4873 | ||
4874 | if (tp_features.light_status) { | |
4875 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4876 | return -EIO; | |
4877 | return (!!status); | |
4878 | } | |
4879 | ||
4880 | return -ENXIO; | |
4881 | } | |
4882 | ||
4883 | static int light_set_status(int status) | |
4884 | { | |
4885 | int rc; | |
4886 | ||
4887 | if (tp_features.light) { | |
4888 | if (cmos_handle) { | |
4889 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4890 | (status)? | |
4891 | TP_CMOS_THINKLIGHT_ON : | |
4892 | TP_CMOS_THINKLIGHT_OFF); | |
4893 | } else { | |
4894 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4895 | (status)? 1 : 0); | |
4896 | } | |
4897 | return (rc)? 0 : -EIO; | |
4898 | } | |
4899 | ||
4900 | return -ENXIO; | |
4901 | } | |
4902 | ||
e306501d HMH |
4903 | static void light_set_status_worker(struct work_struct *work) |
4904 | { | |
4905 | struct tpacpi_led_classdev *data = | |
4906 | container_of(work, struct tpacpi_led_classdev, work); | |
4907 | ||
4908 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 4909 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
4910 | } |
4911 | ||
4912 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4913 | enum led_brightness brightness) | |
4914 | { | |
4915 | struct tpacpi_led_classdev *data = | |
4916 | container_of(led_cdev, | |
4917 | struct tpacpi_led_classdev, | |
4918 | led_classdev); | |
75bd3bf2 HMH |
4919 | data->new_state = (brightness != LED_OFF) ? |
4920 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 4921 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4922 | } |
4923 | ||
4924 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4925 | { | |
4926 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4927 | } | |
4928 | ||
4929 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4930 | .led_classdev = { | |
4931 | .name = "tpacpi::thinklight", | |
4932 | .brightness_set = &light_sysfs_set, | |
4933 | .brightness_get = &light_sysfs_get, | |
4934 | } | |
4935 | }; | |
4936 | ||
a5763f22 | 4937 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4938 | { |
9c0a76e1 | 4939 | int rc; |
e306501d | 4940 | |
fe08bc4b HMH |
4941 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4942 | ||
e28393c0 HMH |
4943 | if (tpacpi_is_ibm()) { |
4944 | TPACPI_ACPIHANDLE_INIT(ledb); | |
4945 | TPACPI_ACPIHANDLE_INIT(lght); | |
4946 | } | |
e0c7dfe7 | 4947 | TPACPI_ACPIHANDLE_INIT(cmos); |
e306501d | 4948 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4949 | |
78f81cc4 | 4950 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4951 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4952 | |
d8fd94d9 | 4953 | if (tp_features.light) |
78f81cc4 BD |
4954 | /* light status not supported on |
4955 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4956 | tp_features.light_status = |
4957 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4958 | |
9c0a76e1 HMH |
4959 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4960 | str_supported(tp_features.light), | |
4961 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4962 | |
9c0a76e1 HMH |
4963 | if (!tp_features.light) |
4964 | return 1; | |
4965 | ||
4966 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4967 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4968 | |
4969 | if (rc < 0) { | |
4970 | tp_features.light = 0; | |
4971 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4972 | } else { |
4973 | rc = 0; | |
e306501d | 4974 | } |
9c0a76e1 | 4975 | |
e306501d HMH |
4976 | return rc; |
4977 | } | |
4978 | ||
4979 | static void light_exit(void) | |
4980 | { | |
4981 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
6d394e19 | 4982 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4983 | } |
4984 | ||
887965e6 | 4985 | static int light_read(struct seq_file *m) |
1da177e4 | 4986 | { |
4fa6811b | 4987 | int status; |
1da177e4 | 4988 | |
d8fd94d9 | 4989 | if (!tp_features.light) { |
887965e6 | 4990 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 4991 | } else if (!tp_features.light_status) { |
887965e6 AD |
4992 | seq_printf(m, "status:\t\tunknown\n"); |
4993 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4994 | } else { |
4fa6811b HMH |
4995 | status = light_get_status(); |
4996 | if (status < 0) | |
4997 | return status; | |
887965e6 AD |
4998 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
4999 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5000 | } |
1da177e4 | 5001 | |
887965e6 | 5002 | return 0; |
1da177e4 LT |
5003 | } |
5004 | ||
78f81cc4 | 5005 | static int light_write(char *buf) |
1da177e4 | 5006 | { |
1da177e4 | 5007 | char *cmd; |
4fa6811b | 5008 | int newstatus = 0; |
78f81cc4 | 5009 | |
d8fd94d9 | 5010 | if (!tp_features.light) |
78f81cc4 BD |
5011 | return -ENODEV; |
5012 | ||
1da177e4 LT |
5013 | while ((cmd = next_cmd(&buf))) { |
5014 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5015 | newstatus = 1; |
1da177e4 | 5016 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5017 | newstatus = 0; |
1da177e4 LT |
5018 | } else |
5019 | return -EINVAL; | |
1da177e4 LT |
5020 | } |
5021 | ||
4fa6811b | 5022 | return light_set_status(newstatus); |
1da177e4 LT |
5023 | } |
5024 | ||
a5763f22 HMH |
5025 | static struct ibm_struct light_driver_data = { |
5026 | .name = "light", | |
5027 | .read = light_read, | |
5028 | .write = light_write, | |
e306501d | 5029 | .exit = light_exit, |
a5763f22 HMH |
5030 | }; |
5031 | ||
56b6aeb0 HMH |
5032 | /************************************************************************* |
5033 | * CMOS subdriver | |
5034 | */ | |
5035 | ||
b616004c HMH |
5036 | /* sysfs cmos_command -------------------------------------------------- */ |
5037 | static ssize_t cmos_command_store(struct device *dev, | |
5038 | struct device_attribute *attr, | |
5039 | const char *buf, size_t count) | |
5040 | { | |
5041 | unsigned long cmos_cmd; | |
5042 | int res; | |
5043 | ||
5044 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5045 | return -EINVAL; | |
5046 | ||
5047 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
5048 | return (res)? res : count; | |
5049 | } | |
5050 | ||
5051 | static struct device_attribute dev_attr_cmos_command = | |
5052 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
5053 | ||
5054 | /* --------------------------------------------------------------------- */ | |
5055 | ||
a5763f22 | 5056 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5057 | { |
b616004c HMH |
5058 | int res; |
5059 | ||
fe08bc4b HMH |
5060 | vdbg_printk(TPACPI_DBG_INIT, |
5061 | "initializing cmos commands subdriver\n"); | |
5062 | ||
e0c7dfe7 | 5063 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5064 | |
fe08bc4b HMH |
5065 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5066 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5067 | |
5068 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5069 | if (res) | |
5070 | return res; | |
5071 | ||
5fba344c HMH |
5072 | return (cmos_handle)? 0 : 1; |
5073 | } | |
5074 | ||
b616004c HMH |
5075 | static void cmos_exit(void) |
5076 | { | |
5077 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5078 | } | |
5079 | ||
887965e6 | 5080 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5081 | { |
78f81cc4 BD |
5082 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5083 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5084 | if (!cmos_handle) |
887965e6 | 5085 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5086 | else { |
887965e6 AD |
5087 | seq_printf(m, "status:\t\tsupported\n"); |
5088 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5089 | } |
5090 | ||
887965e6 | 5091 | return 0; |
1da177e4 LT |
5092 | } |
5093 | ||
78f81cc4 | 5094 | static int cmos_write(char *buf) |
1da177e4 LT |
5095 | { |
5096 | char *cmd; | |
c9bea99c | 5097 | int cmos_cmd, res; |
1da177e4 LT |
5098 | |
5099 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5100 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5101 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5102 | /* cmos_cmd set */ |
5103 | } else | |
5104 | return -EINVAL; | |
5105 | ||
c9bea99c HMH |
5106 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5107 | if (res) | |
5108 | return res; | |
1da177e4 LT |
5109 | } |
5110 | ||
5111 | return 0; | |
78f81cc4 BD |
5112 | } |
5113 | ||
a5763f22 HMH |
5114 | static struct ibm_struct cmos_driver_data = { |
5115 | .name = "cmos", | |
5116 | .read = cmos_read, | |
5117 | .write = cmos_write, | |
b616004c | 5118 | .exit = cmos_exit, |
a5763f22 | 5119 | }; |
56b6aeb0 HMH |
5120 | |
5121 | /************************************************************************* | |
5122 | * LED subdriver | |
5123 | */ | |
5124 | ||
f74a27d4 HMH |
5125 | enum led_access_mode { |
5126 | TPACPI_LED_NONE = 0, | |
5127 | TPACPI_LED_570, /* 570 */ | |
5128 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5129 | TPACPI_LED_NEW, /* all others */ | |
5130 | }; | |
5131 | ||
5132 | enum { /* For TPACPI_LED_OLD */ | |
5133 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5134 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5135 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5136 | }; | |
5137 | ||
9a8e1738 | 5138 | static enum led_access_mode led_supported; |
78f81cc4 | 5139 | |
2cbb5c8f | 5140 | static acpi_handle led_handle; |
56b6aeb0 | 5141 | |
f21179a4 | 5142 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5143 | static struct tpacpi_led_classdev *tpacpi_leds; |
5144 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5145 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5146 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5147 | "tpacpi::power", | |
5148 | "tpacpi:orange:batt", | |
5149 | "tpacpi:green:batt", | |
5150 | "tpacpi::dock_active", | |
5151 | "tpacpi::bay_active", | |
5152 | "tpacpi::dock_batt", | |
5153 | "tpacpi::unknown_led", | |
5154 | "tpacpi::standby", | |
f21179a4 HMH |
5155 | "tpacpi::dock_status1", |
5156 | "tpacpi::dock_status2", | |
5157 | "tpacpi::unknown_led2", | |
5158 | "tpacpi::unknown_led3", | |
5159 | "tpacpi::thinkvantage", | |
af116101 | 5160 | }; |
f21179a4 | 5161 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5162 | |
5163 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5164 | { | |
5165 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5166 | return false; | |
5167 | #else | |
f21179a4 | 5168 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5169 | #endif |
5170 | } | |
af116101 | 5171 | |
24e45bbe | 5172 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5173 | { |
5174 | int status; | |
af116101 | 5175 | enum led_status_t led_s; |
4fa6811b HMH |
5176 | |
5177 | switch (led_supported) { | |
5178 | case TPACPI_LED_570: | |
5179 | if (!acpi_evalf(ec_handle, | |
5180 | &status, "GLED", "dd", 1 << led)) | |
5181 | return -EIO; | |
af116101 | 5182 | led_s = (status == 0)? |
4fa6811b HMH |
5183 | TPACPI_LED_OFF : |
5184 | ((status == 1)? | |
5185 | TPACPI_LED_ON : | |
5186 | TPACPI_LED_BLINK); | |
af116101 HMH |
5187 | tpacpi_led_state_cache[led] = led_s; |
5188 | return led_s; | |
4fa6811b HMH |
5189 | default: |
5190 | return -ENXIO; | |
5191 | } | |
5192 | ||
5193 | /* not reached */ | |
5194 | } | |
5195 | ||
24e45bbe HMH |
5196 | static int led_set_status(const unsigned int led, |
5197 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5198 | { |
5199 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5200 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5201 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5202 | |
5203 | int rc = 0; | |
5204 | ||
5205 | switch (led_supported) { | |
5206 | case TPACPI_LED_570: | |
24e45bbe | 5207 | /* 570 */ |
a4d5effc | 5208 | if (unlikely(led > 7)) |
24e45bbe | 5209 | return -EINVAL; |
a4d5effc HMH |
5210 | if (unlikely(tpacpi_is_led_restricted(led))) |
5211 | return -EPERM; | |
24e45bbe HMH |
5212 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5213 | (1 << led), led_sled_arg1[ledstatus])) | |
5214 | rc = -EIO; | |
5215 | break; | |
4fa6811b | 5216 | case TPACPI_LED_OLD: |
24e45bbe | 5217 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5218 | if (unlikely(led > 7)) |
24e45bbe | 5219 | return -EINVAL; |
a4d5effc HMH |
5220 | if (unlikely(tpacpi_is_led_restricted(led))) |
5221 | return -EPERM; | |
24e45bbe HMH |
5222 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5223 | if (rc >= 0) | |
5224 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5225 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5226 | if (rc >= 0) | |
5227 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5228 | (ledstatus != TPACPI_LED_OFF) << led); | |
5229 | break; | |
4fa6811b | 5230 | case TPACPI_LED_NEW: |
24e45bbe | 5231 | /* all others */ |
a4d5effc HMH |
5232 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5233 | return -EINVAL; | |
5234 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5235 | return -EPERM; | |
24e45bbe HMH |
5236 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5237 | led, led_led_arg1[ledstatus])) | |
5238 | rc = -EIO; | |
5239 | break; | |
4fa6811b HMH |
5240 | default: |
5241 | rc = -ENXIO; | |
5242 | } | |
5243 | ||
af116101 HMH |
5244 | if (!rc) |
5245 | tpacpi_led_state_cache[led] = ledstatus; | |
5246 | ||
5247 | return rc; | |
5248 | } | |
5249 | ||
af116101 HMH |
5250 | static void led_set_status_worker(struct work_struct *work) |
5251 | { | |
5252 | struct tpacpi_led_classdev *data = | |
5253 | container_of(work, struct tpacpi_led_classdev, work); | |
5254 | ||
5255 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5256 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5257 | } |
5258 | ||
5259 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5260 | enum led_brightness brightness) | |
5261 | { | |
5262 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5263 | struct tpacpi_led_classdev, led_classdev); | |
5264 | ||
75bd3bf2 HMH |
5265 | if (brightness == LED_OFF) |
5266 | data->new_state = TPACPI_LED_OFF; | |
5267 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5268 | data->new_state = TPACPI_LED_ON; | |
5269 | else | |
5270 | data->new_state = TPACPI_LED_BLINK; | |
5271 | ||
e0e3c061 | 5272 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5273 | } |
5274 | ||
5275 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5276 | unsigned long *delay_on, unsigned long *delay_off) | |
5277 | { | |
5278 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5279 | struct tpacpi_led_classdev, led_classdev); | |
5280 | ||
5281 | /* Can we choose the flash rate? */ | |
5282 | if (*delay_on == 0 && *delay_off == 0) { | |
5283 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5284 | *delay_on = 500; /* ms */ | |
5285 | *delay_off = 500; /* ms */ | |
5286 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5287 | return -EINVAL; | |
5288 | ||
75bd3bf2 | 5289 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5290 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5291 | |
5292 | return 0; | |
5293 | } | |
5294 | ||
5295 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5296 | { | |
5297 | int rc; | |
5298 | ||
5299 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5300 | struct tpacpi_led_classdev, led_classdev); | |
5301 | ||
5302 | rc = led_get_status(data->led); | |
5303 | ||
5304 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5305 | rc = LED_OFF; /* no error handling in led class :( */ | |
5306 | else | |
5307 | rc = LED_FULL; | |
5308 | ||
4fa6811b HMH |
5309 | return rc; |
5310 | } | |
5311 | ||
af116101 HMH |
5312 | static void led_exit(void) |
5313 | { | |
5314 | unsigned int i; | |
5315 | ||
5316 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5317 | if (tpacpi_leds[i].led_classdev.name) | |
5318 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5319 | } | |
5320 | ||
e03e389d | 5321 | flush_workqueue(tpacpi_wq); |
af116101 | 5322 | kfree(tpacpi_leds); |
af116101 HMH |
5323 | } |
5324 | ||
a4d5effc HMH |
5325 | static int __init tpacpi_init_led(unsigned int led) |
5326 | { | |
5327 | int rc; | |
5328 | ||
5329 | tpacpi_leds[led].led = led; | |
5330 | ||
f21179a4 HMH |
5331 | /* LEDs with no name don't get registered */ |
5332 | if (!tpacpi_led_names[led]) | |
5333 | return 0; | |
5334 | ||
a4d5effc HMH |
5335 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5336 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5337 | if (led_supported == TPACPI_LED_570) | |
5338 | tpacpi_leds[led].led_classdev.brightness_get = | |
5339 | &led_sysfs_get; | |
5340 | ||
5341 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5342 | ||
5343 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5344 | ||
5345 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5346 | &tpacpi_leds[led].led_classdev); | |
5347 | if (rc < 0) | |
5348 | tpacpi_leds[led].led_classdev.name = NULL; | |
5349 | ||
5350 | return rc; | |
5351 | } | |
5352 | ||
f21179a4 HMH |
5353 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5354 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5355 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5356 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5357 | ||
5358 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5359 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5360 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5361 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5362 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5363 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5364 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5365 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5366 | ||
5367 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5368 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5369 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5370 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5371 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5372 | ||
5373 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5374 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5375 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5376 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5377 | ||
5378 | /* (1) - may have excess leds enabled on MSB */ | |
5379 | ||
5380 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5381 | { /* Lenovo */ | |
5382 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5383 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5384 | .quirks = 0x1fffU, | |
5385 | }, | |
5386 | { /* IBM ThinkPads with no EC version string */ | |
5387 | .vendor = PCI_VENDOR_ID_IBM, | |
5388 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5389 | .quirks = 0x00ffU, | |
5390 | }, | |
5391 | { /* IBM ThinkPads with EC version string */ | |
5392 | .vendor = PCI_VENDOR_ID_IBM, | |
5393 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5394 | .quirks = 0x00bfU, | |
5395 | }, | |
5396 | }; | |
5397 | ||
5398 | #undef TPACPI_LEDQ_IBM | |
5399 | #undef TPACPI_LEDQ_LNV | |
5400 | ||
2cbb5c8f HMH |
5401 | static enum led_access_mode __init led_init_detect_mode(void) |
5402 | { | |
5403 | acpi_status status; | |
5404 | ||
5405 | if (tpacpi_is_ibm()) { | |
5406 | /* 570 */ | |
5407 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5408 | if (ACPI_SUCCESS(status)) | |
5409 | return TPACPI_LED_570; | |
5410 | ||
5411 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5412 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5413 | if (ACPI_SUCCESS(status)) | |
5414 | return TPACPI_LED_OLD; | |
5415 | } | |
5416 | ||
5417 | /* most others */ | |
5418 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5419 | if (ACPI_SUCCESS(status)) | |
5420 | return TPACPI_LED_NEW; | |
5421 | ||
5422 | /* R30, R31, and unknown firmwares */ | |
5423 | led_handle = NULL; | |
5424 | return TPACPI_LED_NONE; | |
5425 | } | |
5426 | ||
a5763f22 | 5427 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5428 | { |
af116101 HMH |
5429 | unsigned int i; |
5430 | int rc; | |
f21179a4 | 5431 | unsigned long useful_leds; |
af116101 | 5432 | |
fe08bc4b HMH |
5433 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5434 | ||
2cbb5c8f | 5435 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5436 | |
fcb44e12 AL |
5437 | if (led_supported != TPACPI_LED_NONE) { |
5438 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
5439 | ARRAY_SIZE(led_useful_qtable)); | |
5440 | ||
5441 | if (!useful_leds) { | |
5442 | led_handle = NULL; | |
5443 | led_supported = TPACPI_LED_NONE; | |
5444 | } | |
5445 | } | |
5446 | ||
fe08bc4b HMH |
5447 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5448 | str_supported(led_supported), led_supported); | |
5449 | ||
f21179a4 HMH |
5450 | if (led_supported == TPACPI_LED_NONE) |
5451 | return 1; | |
5452 | ||
af116101 HMH |
5453 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5454 | GFP_KERNEL); | |
5455 | if (!tpacpi_leds) { | |
0978e012 | 5456 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
5457 | return -ENOMEM; |
5458 | } | |
5459 | ||
5460 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
5461 | tpacpi_leds[i].led = -1; |
5462 | ||
f21179a4 HMH |
5463 | if (!tpacpi_is_led_restricted(i) && |
5464 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5465 | rc = tpacpi_init_led(i); |
5466 | if (rc < 0) { | |
5467 | led_exit(); | |
5468 | return rc; | |
5469 | } | |
af116101 HMH |
5470 | } |
5471 | } | |
5472 | ||
a4d5effc | 5473 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
0978e012 JP |
5474 | pr_notice("warning: userspace override of important " |
5475 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5476 | #endif |
f21179a4 | 5477 | return 0; |
78f81cc4 BD |
5478 | } |
5479 | ||
4fa6811b HMH |
5480 | #define str_led_status(s) \ |
5481 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5482 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5483 | |
887965e6 | 5484 | static int led_read(struct seq_file *m) |
1da177e4 | 5485 | { |
78f81cc4 | 5486 | if (!led_supported) { |
887965e6 AD |
5487 | seq_printf(m, "status:\t\tnot supported\n"); |
5488 | return 0; | |
78f81cc4 | 5489 | } |
887965e6 | 5490 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5491 | |
efa27145 | 5492 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5493 | /* 570 */ |
5494 | int i, status; | |
5495 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5496 | status = led_get_status(i); |
5497 | if (status < 0) | |
78f81cc4 | 5498 | return -EIO; |
887965e6 | 5499 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5500 | i, str_led_status(status)); |
78f81cc4 BD |
5501 | } |
5502 | } | |
5503 | ||
887965e6 | 5504 | seq_printf(m, "commands:\t" |
f21179a4 | 5505 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5506 | |
887965e6 | 5507 | return 0; |
1da177e4 LT |
5508 | } |
5509 | ||
78f81cc4 | 5510 | static int led_write(char *buf) |
1da177e4 LT |
5511 | { |
5512 | char *cmd; | |
4fa6811b HMH |
5513 | int led, rc; |
5514 | enum led_status_t s; | |
78f81cc4 BD |
5515 | |
5516 | if (!led_supported) | |
5517 | return -ENODEV; | |
1da177e4 LT |
5518 | |
5519 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 5520 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
5521 | return -EINVAL; |
5522 | ||
edf2d778 AL |
5523 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
5524 | tpacpi_leds[led].led < 0) | |
5525 | return -ENODEV; | |
5526 | ||
78f81cc4 | 5527 | if (strstr(cmd, "off")) { |
4fa6811b | 5528 | s = TPACPI_LED_OFF; |
1da177e4 | 5529 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5530 | s = TPACPI_LED_ON; |
78f81cc4 | 5531 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5532 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5533 | } else { |
4fa6811b | 5534 | return -EINVAL; |
78f81cc4 | 5535 | } |
4fa6811b HMH |
5536 | |
5537 | rc = led_set_status(led, s); | |
5538 | if (rc < 0) | |
5539 | return rc; | |
78f81cc4 BD |
5540 | } |
5541 | ||
5542 | return 0; | |
5543 | } | |
5544 | ||
a5763f22 HMH |
5545 | static struct ibm_struct led_driver_data = { |
5546 | .name = "led", | |
5547 | .read = led_read, | |
5548 | .write = led_write, | |
af116101 | 5549 | .exit = led_exit, |
a5763f22 HMH |
5550 | }; |
5551 | ||
56b6aeb0 HMH |
5552 | /************************************************************************* |
5553 | * Beep subdriver | |
5554 | */ | |
5555 | ||
e0c7dfe7 | 5556 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5557 | |
60201732 HMH |
5558 | #define TPACPI_BEEP_Q1 0x0001 |
5559 | ||
5560 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5561 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5562 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5563 | }; | |
5564 | ||
a5763f22 | 5565 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5566 | { |
60201732 HMH |
5567 | unsigned long quirks; |
5568 | ||
fe08bc4b HMH |
5569 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5570 | ||
e0c7dfe7 | 5571 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5572 | |
fe08bc4b HMH |
5573 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5574 | str_supported(beep_handle != NULL)); | |
5575 | ||
60201732 HMH |
5576 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5577 | ARRAY_SIZE(beep_quirk_table)); | |
5578 | ||
5579 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5580 | ||
5fba344c HMH |
5581 | return (beep_handle)? 0 : 1; |
5582 | } | |
5583 | ||
887965e6 | 5584 | static int beep_read(struct seq_file *m) |
78f81cc4 | 5585 | { |
78f81cc4 | 5586 | if (!beep_handle) |
887965e6 | 5587 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 5588 | else { |
887965e6 AD |
5589 | seq_printf(m, "status:\t\tsupported\n"); |
5590 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
5591 | } |
5592 | ||
887965e6 | 5593 | return 0; |
78f81cc4 BD |
5594 | } |
5595 | ||
5596 | static int beep_write(char *buf) | |
5597 | { | |
5598 | char *cmd; | |
5599 | int beep_cmd; | |
5600 | ||
5601 | if (!beep_handle) | |
5602 | return -ENODEV; | |
5603 | ||
5604 | while ((cmd = next_cmd(&buf))) { | |
5605 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5606 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5607 | /* beep_cmd set */ | |
5608 | } else | |
5609 | return -EINVAL; | |
60201732 HMH |
5610 | if (tp_features.beep_needs_two_args) { |
5611 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5612 | beep_cmd, 0)) | |
5613 | return -EIO; | |
5614 | } else { | |
5615 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5616 | beep_cmd)) | |
5617 | return -EIO; | |
5618 | } | |
78f81cc4 BD |
5619 | } |
5620 | ||
5621 | return 0; | |
5622 | } | |
5623 | ||
a5763f22 HMH |
5624 | static struct ibm_struct beep_driver_data = { |
5625 | .name = "beep", | |
5626 | .read = beep_read, | |
5627 | .write = beep_write, | |
5628 | }; | |
5629 | ||
56b6aeb0 HMH |
5630 | /************************************************************************* |
5631 | * Thermal subdriver | |
5632 | */ | |
78f81cc4 | 5633 | |
f74a27d4 HMH |
5634 | enum thermal_access_mode { |
5635 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5636 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5637 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5638 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5639 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5640 | }; | |
5641 | ||
5642 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5643 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5644 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5645 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5646 | |
5647 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5648 | }; |
5649 | ||
9ebd9e83 | 5650 | |
f74a27d4 HMH |
5651 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5652 | struct ibm_thermal_sensors_struct { | |
5653 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5654 | }; | |
5655 | ||
a26f878a | 5656 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5657 | |
b21a15f6 HMH |
5658 | /* idx is zero-based */ |
5659 | static int thermal_get_sensor(int idx, s32 *value) | |
5660 | { | |
5661 | int t; | |
5662 | s8 tmp; | |
5663 | char tmpi[5]; | |
5664 | ||
5665 | t = TP_EC_THERMAL_TMP0; | |
5666 | ||
5667 | switch (thermal_read_mode) { | |
5668 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5669 | case TPACPI_THERMAL_TPEC_16: | |
5670 | if (idx >= 8 && idx <= 15) { | |
5671 | t = TP_EC_THERMAL_TMP8; | |
5672 | idx -= 8; | |
5673 | } | |
5674 | /* fallthrough */ | |
5675 | #endif | |
5676 | case TPACPI_THERMAL_TPEC_8: | |
5677 | if (idx <= 7) { | |
5678 | if (!acpi_ec_read(t + idx, &tmp)) | |
5679 | return -EIO; | |
5680 | *value = tmp * 1000; | |
5681 | return 0; | |
5682 | } | |
5683 | break; | |
5684 | ||
5685 | case TPACPI_THERMAL_ACPI_UPDT: | |
5686 | if (idx <= 7) { | |
5687 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5688 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5689 | return -EIO; | |
5690 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5691 | return -EIO; | |
5692 | *value = (t - 2732) * 100; | |
5693 | return 0; | |
5694 | } | |
5695 | break; | |
5696 | ||
5697 | case TPACPI_THERMAL_ACPI_TMP07: | |
5698 | if (idx <= 7) { | |
5699 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5700 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5701 | return -EIO; | |
5702 | if (t > 127 || t < -127) | |
5703 | t = TP_EC_THERMAL_TMP_NA; | |
5704 | *value = t * 1000; | |
5705 | return 0; | |
5706 | } | |
5707 | break; | |
5708 | ||
5709 | case TPACPI_THERMAL_NONE: | |
5710 | default: | |
5711 | return -ENOSYS; | |
5712 | } | |
5713 | ||
5714 | return -EINVAL; | |
5715 | } | |
5716 | ||
5717 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5718 | { | |
5719 | int res, i; | |
5720 | int n; | |
5721 | ||
5722 | n = 8; | |
5723 | i = 0; | |
5724 | ||
5725 | if (!s) | |
5726 | return -EINVAL; | |
5727 | ||
5728 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5729 | n = 16; | |
5730 | ||
35ff8b9f | 5731 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5732 | res = thermal_get_sensor(i, &s->temp[i]); |
5733 | if (res) | |
5734 | return res; | |
5735 | } | |
5736 | ||
5737 | return n; | |
5738 | } | |
f74a27d4 | 5739 | |
9ebd9e83 HMH |
5740 | static void thermal_dump_all_sensors(void) |
5741 | { | |
5742 | int n, i; | |
5743 | struct ibm_thermal_sensors_struct t; | |
5744 | ||
5745 | n = thermal_get_sensors(&t); | |
5746 | if (n <= 0) | |
5747 | return; | |
5748 | ||
0978e012 | 5749 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
5750 | |
5751 | for (i = 0; i < n; i++) { | |
5752 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 5753 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 5754 | else |
0978e012 | 5755 | pr_cont(" N/A"); |
9ebd9e83 HMH |
5756 | } |
5757 | ||
0978e012 | 5758 | pr_cont("\n"); |
9ebd9e83 HMH |
5759 | } |
5760 | ||
2c37aa4e HMH |
5761 | /* sysfs temp##_input -------------------------------------------------- */ |
5762 | ||
5763 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5764 | struct device_attribute *attr, | |
5765 | char *buf) | |
5766 | { | |
5767 | struct sensor_device_attribute *sensor_attr = | |
5768 | to_sensor_dev_attr(attr); | |
5769 | int idx = sensor_attr->index; | |
5770 | s32 value; | |
5771 | int res; | |
5772 | ||
5773 | res = thermal_get_sensor(idx, &value); | |
5774 | if (res) | |
5775 | return res; | |
9ebd9e83 | 5776 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5777 | return -ENXIO; |
5778 | ||
5779 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5780 | } | |
5781 | ||
5782 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5783 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5784 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5785 | |
5786 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5787 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5788 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5789 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5790 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5791 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5792 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5793 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5794 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5795 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5796 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5797 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5798 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5799 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5800 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5801 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5802 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5803 | }; | |
5804 | ||
5805 | #define THERMAL_ATTRS(X) \ | |
5806 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5807 | ||
5808 | static struct attribute *thermal_temp_input_attr[] = { | |
5809 | THERMAL_ATTRS(8), | |
5810 | THERMAL_ATTRS(9), | |
5811 | THERMAL_ATTRS(10), | |
5812 | THERMAL_ATTRS(11), | |
5813 | THERMAL_ATTRS(12), | |
5814 | THERMAL_ATTRS(13), | |
5815 | THERMAL_ATTRS(14), | |
5816 | THERMAL_ATTRS(15), | |
5817 | THERMAL_ATTRS(0), | |
5818 | THERMAL_ATTRS(1), | |
5819 | THERMAL_ATTRS(2), | |
5820 | THERMAL_ATTRS(3), | |
5821 | THERMAL_ATTRS(4), | |
5822 | THERMAL_ATTRS(5), | |
5823 | THERMAL_ATTRS(6), | |
5824 | THERMAL_ATTRS(7), | |
5825 | NULL | |
5826 | }; | |
5827 | ||
5828 | static const struct attribute_group thermal_temp_input16_group = { | |
5829 | .attrs = thermal_temp_input_attr | |
5830 | }; | |
5831 | ||
5832 | static const struct attribute_group thermal_temp_input8_group = { | |
5833 | .attrs = &thermal_temp_input_attr[8] | |
5834 | }; | |
5835 | ||
5836 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5837 | #undef THERMAL_ATTRS | |
5838 | ||
5839 | /* --------------------------------------------------------------------- */ | |
5840 | ||
a5763f22 | 5841 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5842 | { |
60eb0b35 HMH |
5843 | u8 t, ta1, ta2; |
5844 | int i; | |
5fba344c | 5845 | int acpi_tmp7; |
2c37aa4e | 5846 | int res; |
5fba344c | 5847 | |
fe08bc4b HMH |
5848 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5849 | ||
5fba344c | 5850 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5851 | |
3d6f99ca | 5852 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5853 | /* |
5854 | * Direct EC access mode: sensors at registers | |
5855 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5856 | * non-implemented, thermal sensors return 0x80 when | |
5857 | * not available | |
5858 | */ | |
78f81cc4 | 5859 | |
60eb0b35 HMH |
5860 | ta1 = ta2 = 0; |
5861 | for (i = 0; i < 8; i++) { | |
04cc862c | 5862 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5863 | ta1 |= t; |
5864 | } else { | |
5865 | ta1 = 0; | |
5866 | break; | |
5867 | } | |
04cc862c | 5868 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5869 | ta2 |= t; |
5870 | } else { | |
5871 | ta1 = 0; | |
5872 | break; | |
5873 | } | |
5874 | } | |
5875 | if (ta1 == 0) { | |
5876 | /* This is sheer paranoia, but we handle it anyway */ | |
5877 | if (acpi_tmp7) { | |
0978e012 | 5878 | pr_err("ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5879 | "falling back to ACPI TMPx access " |
5880 | "mode\n"); | |
efa27145 | 5881 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5882 | } else { |
0978e012 | 5883 | pr_err("ThinkPad ACPI EC access misbehaving, " |
60eb0b35 | 5884 | "disabling thermal sensors access\n"); |
efa27145 | 5885 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5886 | } |
5887 | } else { | |
5888 | thermal_read_mode = | |
5889 | (ta2 != 0) ? | |
efa27145 | 5890 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5891 | } |
5892 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
5893 | if (tpacpi_is_ibm() && |
5894 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 5895 | /* 600e/x, 770e, 770x */ |
efa27145 | 5896 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 5897 | } else { |
e28393c0 | 5898 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 5899 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5900 | } |
5901 | } else { | |
5902 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5903 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5904 | } |
78f81cc4 | 5905 | |
fe08bc4b HMH |
5906 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5907 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5908 | thermal_read_mode); | |
5909 | ||
35ff8b9f | 5910 | switch (thermal_read_mode) { |
2c37aa4e | 5911 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5912 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5913 | &thermal_temp_input16_group); |
5914 | if (res) | |
5915 | return res; | |
5916 | break; | |
5917 | case TPACPI_THERMAL_TPEC_8: | |
5918 | case TPACPI_THERMAL_ACPI_TMP07: | |
5919 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5920 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5921 | &thermal_temp_input8_group); |
5922 | if (res) | |
5923 | return res; | |
5924 | break; | |
5925 | case TPACPI_THERMAL_NONE: | |
5926 | default: | |
5927 | return 1; | |
5928 | } | |
5929 | ||
5930 | return 0; | |
5931 | } | |
5932 | ||
5933 | static void thermal_exit(void) | |
5934 | { | |
35ff8b9f | 5935 | switch (thermal_read_mode) { |
2c37aa4e | 5936 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5937 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5938 | &thermal_temp_input16_group); |
5939 | break; | |
5940 | case TPACPI_THERMAL_TPEC_8: | |
5941 | case TPACPI_THERMAL_ACPI_TMP07: | |
5942 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5943 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 5944 | &thermal_temp_input8_group); |
2c37aa4e HMH |
5945 | break; |
5946 | case TPACPI_THERMAL_NONE: | |
5947 | default: | |
5948 | break; | |
5949 | } | |
78f81cc4 BD |
5950 | } |
5951 | ||
887965e6 | 5952 | static int thermal_read(struct seq_file *m) |
a26f878a | 5953 | { |
a26f878a HMH |
5954 | int n, i; |
5955 | struct ibm_thermal_sensors_struct t; | |
5956 | ||
5957 | n = thermal_get_sensors(&t); | |
5958 | if (unlikely(n < 0)) | |
5959 | return n; | |
5960 | ||
887965e6 | 5961 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
5962 | |
5963 | if (n > 0) { | |
5964 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
5965 | seq_printf(m, "%d ", t.temp[i] / 1000); |
5966 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 5967 | } else |
887965e6 | 5968 | seq_printf(m, "not supported\n"); |
78f81cc4 | 5969 | |
887965e6 | 5970 | return 0; |
78f81cc4 BD |
5971 | } |
5972 | ||
a5763f22 HMH |
5973 | static struct ibm_struct thermal_driver_data = { |
5974 | .name = "thermal", | |
5975 | .read = thermal_read, | |
2c37aa4e | 5976 | .exit = thermal_exit, |
a5763f22 HMH |
5977 | }; |
5978 | ||
56b6aeb0 HMH |
5979 | /************************************************************************* |
5980 | * Backlight/brightness subdriver | |
5981 | */ | |
5982 | ||
f74a27d4 HMH |
5983 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5984 | ||
0e501834 HMH |
5985 | /* |
5986 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
5987 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
5988 | * | |
5989 | * EC HBRV (0x31) has the following layout | |
5990 | * Bit 7: unknown function | |
5991 | * Bit 6: unknown function | |
5992 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5993 | * Bit 4: must be set to zero to avoid problems | |
5994 | * Bit 3-0: backlight brightness level | |
5995 | * | |
5996 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
5997 | * |
5998 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
5999 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6000 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6001 | */ |
6002 | ||
e11aecf1 HMH |
6003 | enum { |
6004 | TP_EC_BACKLIGHT = 0x31, | |
6005 | ||
6006 | /* TP_EC_BACKLIGHT bitmasks */ | |
6007 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6008 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6009 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6010 | }; | |
6011 | ||
0e501834 HMH |
6012 | enum tpacpi_brightness_access_mode { |
6013 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6014 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6015 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6016 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6017 | TPACPI_BRGHT_MODE_MAX | |
6018 | }; | |
6019 | ||
94954cc6 | 6020 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6021 | |
6022 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6023 | TPACPI_BRGHT_MODE_MAX; | |
6024 | ||
f74a27d4 HMH |
6025 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6026 | ||
b21a15f6 | 6027 | static struct mutex brightness_mutex; |
56b6aeb0 | 6028 | |
0e501834 HMH |
6029 | /* NVRAM brightness access, |
6030 | * call with brightness_mutex held! */ | |
6031 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6032 | { |
0e501834 | 6033 | u8 lnvram; |
b21a15f6 | 6034 | |
0e501834 HMH |
6035 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6036 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6037 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6038 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6039 | |
6040 | return lnvram; | |
6041 | } | |
6042 | ||
6043 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6044 | { | |
6045 | u8 lec = 0; | |
6046 | u8 b_nvram; | |
6047 | ||
6048 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6049 | return; | |
6050 | ||
6051 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6052 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6053 | ||
6054 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6055 | return; | |
6056 | ||
6057 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6058 | goto unlock; | |
6059 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6060 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6061 | ||
6062 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6063 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6064 | /* NVRAM needs update */ | |
6065 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6066 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6067 | b_nvram |= lec; | |
6068 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6069 | dbg_printk(TPACPI_DBG_BRGHT, | |
6070 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6071 | (unsigned int) lec, (unsigned int) b_nvram); | |
6072 | } else | |
6073 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6074 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6075 | (unsigned int) lec, (unsigned int) b_nvram); | |
6076 | ||
6077 | unlock: | |
6078 | mutex_unlock(&brightness_mutex); | |
6079 | } | |
6080 | ||
6081 | ||
6082 | /* call with brightness_mutex held! */ | |
6083 | static int tpacpi_brightness_get_raw(int *status) | |
6084 | { | |
6085 | u8 lec = 0; | |
6086 | ||
6087 | switch (brightness_mode) { | |
6088 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6089 | *status = tpacpi_brightness_nvram_get(); | |
6090 | return 0; | |
6091 | case TPACPI_BRGHT_MODE_EC: | |
6092 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6093 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6094 | return -EIO; |
0e501834 HMH |
6095 | *status = lec; |
6096 | return 0; | |
6097 | default: | |
6098 | return -ENXIO; | |
b21a15f6 | 6099 | } |
0e501834 HMH |
6100 | } |
6101 | ||
6102 | /* call with brightness_mutex held! */ | |
6103 | /* do NOT call with illegal backlight level value */ | |
6104 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6105 | { | |
6106 | u8 lec = 0; | |
6107 | ||
6108 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6109 | return -EIO; | |
6110 | ||
6111 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6112 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6113 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6114 | return -EIO; | |
6115 | ||
6116 | return 0; | |
6117 | } | |
6118 | ||
6119 | /* call with brightness_mutex held! */ | |
6120 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6121 | { | |
6122 | int cmos_cmd, inc; | |
6123 | unsigned int current_value, i; | |
6124 | ||
6125 | current_value = tpacpi_brightness_nvram_get(); | |
6126 | ||
6127 | if (value == current_value) | |
6128 | return 0; | |
6129 | ||
6130 | cmos_cmd = (value > current_value) ? | |
6131 | TP_CMOS_BRIGHTNESS_UP : | |
6132 | TP_CMOS_BRIGHTNESS_DOWN; | |
6133 | inc = (value > current_value) ? 1 : -1; | |
6134 | ||
6135 | for (i = current_value; i != value; i += inc) | |
6136 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6137 | return -EIO; | |
b21a15f6 | 6138 | |
e11aecf1 | 6139 | return 0; |
b21a15f6 HMH |
6140 | } |
6141 | ||
6142 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6143 | static int brightness_set(unsigned int value) |
b21a15f6 | 6144 | { |
0e501834 | 6145 | int res; |
b21a15f6 | 6146 | |
77775838 | 6147 | if (value > bright_maxlvl || value < 0) |
b21a15f6 HMH |
6148 | return -EINVAL; |
6149 | ||
0e501834 HMH |
6150 | vdbg_printk(TPACPI_DBG_BRGHT, |
6151 | "set backlight level to %d\n", value); | |
6152 | ||
7646ea88 | 6153 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6154 | if (res < 0) |
6155 | return res; | |
6156 | ||
0e501834 HMH |
6157 | switch (brightness_mode) { |
6158 | case TPACPI_BRGHT_MODE_EC: | |
6159 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6160 | res = tpacpi_brightness_set_ec(value); | |
6161 | break; | |
6162 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6163 | res = tpacpi_brightness_set_ucmsstep(value); | |
6164 | break; | |
6165 | default: | |
6166 | res = -ENXIO; | |
b21a15f6 HMH |
6167 | } |
6168 | ||
b21a15f6 HMH |
6169 | mutex_unlock(&brightness_mutex); |
6170 | return res; | |
6171 | } | |
6172 | ||
6173 | /* sysfs backlight class ----------------------------------------------- */ | |
6174 | ||
6175 | static int brightness_update_status(struct backlight_device *bd) | |
6176 | { | |
0e501834 | 6177 | unsigned int level = |
b21a15f6 HMH |
6178 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6179 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6180 | bd->props.brightness : 0; |
6181 | ||
6182 | dbg_printk(TPACPI_DBG_BRGHT, | |
6183 | "backlight: attempt to set level to %d\n", | |
6184 | level); | |
6185 | ||
6186 | /* it is the backlight class's job (caller) to handle | |
6187 | * EINTR and other errors properly */ | |
6188 | return brightness_set(level); | |
b21a15f6 HMH |
6189 | } |
6190 | ||
e11aecf1 | 6191 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6192 | { |
e11aecf1 | 6193 | int status, res; |
a3f104c0 | 6194 | |
0e501834 | 6195 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6196 | if (res < 0) |
0e501834 HMH |
6197 | return 0; |
6198 | ||
6199 | res = tpacpi_brightness_get_raw(&status); | |
6200 | ||
6201 | mutex_unlock(&brightness_mutex); | |
6202 | ||
6203 | if (res < 0) | |
6204 | return 0; | |
e11e211a | 6205 | |
e11aecf1 | 6206 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6207 | } |
6208 | ||
347a2686 HMH |
6209 | static void tpacpi_brightness_notify_change(void) |
6210 | { | |
6211 | backlight_force_update(ibm_backlight_device, | |
6212 | BACKLIGHT_UPDATE_HOTKEY); | |
6213 | } | |
6214 | ||
acc2472e | 6215 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6216 | .get_brightness = brightness_get, |
6217 | .update_status = brightness_update_status, | |
56b6aeb0 | 6218 | }; |
e11e211a | 6219 | |
b21a15f6 | 6220 | /* --------------------------------------------------------------------- */ |
e11e211a | 6221 | |
122f2672 HMH |
6222 | /* |
6223 | * Call _BCL method of video device. On some ThinkPads this will | |
6224 | * switch the firmware to the ACPI brightness control mode. | |
6225 | */ | |
6226 | ||
77775838 HMH |
6227 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6228 | { | |
6229 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6230 | union acpi_object *obj; | |
46445b6b | 6231 | struct acpi_device *device, *child; |
77775838 HMH |
6232 | int rc; |
6233 | ||
46445b6b AL |
6234 | if (acpi_bus_get_device(handle, &device)) |
6235 | return 0; | |
6236 | ||
6237 | rc = 0; | |
6238 | list_for_each_entry(child, &device->children, node) { | |
6239 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6240 | NULL, &buffer); | |
6241 | if (ACPI_FAILURE(status)) | |
6242 | continue; | |
6243 | ||
77775838 HMH |
6244 | obj = (union acpi_object *)buffer.pointer; |
6245 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6246 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6247 | TPACPI_MAIL); |
77775838 HMH |
6248 | rc = 0; |
6249 | } else { | |
6250 | rc = obj->package.count; | |
6251 | } | |
46445b6b | 6252 | break; |
77775838 HMH |
6253 | } |
6254 | ||
6255 | kfree(buffer.pointer); | |
6256 | return rc; | |
6257 | } | |
6258 | ||
77775838 HMH |
6259 | |
6260 | /* | |
6261 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6262 | */ | |
6263 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6264 | { | |
122f2672 | 6265 | acpi_handle video_device; |
77775838 | 6266 | int bcl_levels = 0; |
77775838 | 6267 | |
46445b6b | 6268 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6269 | if (video_device) |
6270 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6271 | |
122f2672 | 6272 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6273 | |
122f2672 | 6274 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6275 | } |
6276 | ||
59fe4fe3 HMH |
6277 | /* |
6278 | * These are only useful for models that have only one possibility | |
6279 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6280 | * these quirks. | |
6281 | */ | |
6282 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6283 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6284 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6285 | ||
6286 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6287 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6288 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6289 | ||
6da25bf5 | 6290 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6291 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6292 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6293 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6294 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6295 | ||
6da25bf5 | 6296 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6297 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6298 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6299 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6300 | |
6301 | /* Models with Intel GMA900 */ | |
6302 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6303 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6304 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6305 | }; | |
6306 | ||
77775838 HMH |
6307 | /* |
6308 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6309 | * and bright_maxlvl. | |
6310 | */ | |
6311 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6312 | { | |
6313 | unsigned int b; | |
6314 | ||
6315 | vdbg_printk(TPACPI_DBG_INIT, | |
6316 | "detecting firmware brightness interface capabilities\n"); | |
6317 | ||
6318 | /* we could run a quirks check here (same table used by | |
6319 | * brightness_init) if needed */ | |
6320 | ||
6321 | /* | |
6322 | * We always attempt to detect acpi support, so as to switch | |
6323 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6324 | * going to publish a backlight interface | |
6325 | */ | |
6326 | b = tpacpi_check_std_acpi_brightness_support(); | |
6327 | switch (b) { | |
6328 | case 16: | |
6329 | bright_maxlvl = 15; | |
0978e012 | 6330 | pr_info("detected a 16-level brightness capable ThinkPad\n"); |
77775838 HMH |
6331 | break; |
6332 | case 8: | |
6333 | case 0: | |
6334 | bright_maxlvl = 7; | |
0978e012 | 6335 | pr_info("detected a 8-level brightness capable ThinkPad\n"); |
77775838 HMH |
6336 | break; |
6337 | default: | |
0978e012 | 6338 | pr_err("Unsupported brightness interface, " |
77775838 HMH |
6339 | "please contact %s\n", TPACPI_MAIL); |
6340 | tp_features.bright_unkfw = 1; | |
6341 | bright_maxlvl = b - 1; | |
6342 | } | |
6343 | } | |
6344 | ||
a5763f22 | 6345 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6346 | { |
a19a6ee6 | 6347 | struct backlight_properties props; |
56b6aeb0 | 6348 | int b; |
59fe4fe3 | 6349 | unsigned long quirks; |
56b6aeb0 | 6350 | |
fe08bc4b HMH |
6351 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6352 | ||
f432255e HMH |
6353 | mutex_init(&brightness_mutex); |
6354 | ||
59fe4fe3 HMH |
6355 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6356 | ARRAY_SIZE(brightness_quirk_table)); | |
6357 | ||
77775838 HMH |
6358 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6359 | ||
6360 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6361 | if (tp_features.bright_unkfw) | |
6362 | return 1; | |
2dba1b5d | 6363 | |
b5972796 | 6364 | if (!brightness_enable) { |
0e501834 | 6365 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6366 | "brightness support disabled by " |
6367 | "module parameter\n"); | |
6368 | return 1; | |
6369 | } | |
6370 | ||
217f0963 HMH |
6371 | if (acpi_video_backlight_support()) { |
6372 | if (brightness_enable > 1) { | |
0978e012 JP |
6373 | pr_info("Standard ACPI backlight interface " |
6374 | "available, not loading native one\n"); | |
217f0963 HMH |
6375 | return 1; |
6376 | } else if (brightness_enable == 1) { | |
0978e012 | 6377 | pr_warn("Cannot enable backlight brightness support, " |
217f0963 | 6378 | "ACPI is already handling it. Refer to the " |
0978e012 | 6379 | "acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6380 | return 1; |
6381 | } | |
6382 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
0978e012 JP |
6383 | pr_notice("Standard ACPI backlight interface not " |
6384 | "available, thinkpad_acpi native " | |
6385 | "brightness control enabled\n"); | |
217f0963 HMH |
6386 | } |
6387 | ||
0e501834 HMH |
6388 | /* |
6389 | * Check for module parameter bogosity, note that we | |
6390 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6391 | * able to detect "unspecified" | |
6392 | */ | |
6393 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6394 | return -EINVAL; | |
24d3b774 | 6395 | |
0e501834 HMH |
6396 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6397 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6398 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6399 | if (quirks & TPACPI_BRGHT_Q_EC) |
6400 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6401 | else | |
0e501834 | 6402 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6403 | |
0e501834 | 6404 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6405 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6406 | brightness_mode); |
6407 | } | |
24d3b774 | 6408 | |
d7880f10 | 6409 | /* Safety */ |
e28393c0 | 6410 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6411 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6412 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6413 | return -EINVAL; | |
6414 | ||
0e501834 | 6415 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6416 | return 1; |
56b6aeb0 | 6417 | |
a19a6ee6 | 6418 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6419 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6420 | props.max_brightness = bright_maxlvl; |
6421 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6422 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6423 | NULL, NULL, | |
6424 | &ibm_backlight_data, | |
6425 | &props); | |
56b6aeb0 | 6426 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6427 | int rc = PTR_ERR(ibm_backlight_device); |
6428 | ibm_backlight_device = NULL; | |
0978e012 | 6429 | pr_err("Could not register backlight device\n"); |
435c47e2 | 6430 | return rc; |
56b6aeb0 | 6431 | } |
0e501834 HMH |
6432 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6433 | "brightness is supported\n"); | |
56b6aeb0 | 6434 | |
59fe4fe3 | 6435 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
0978e012 JP |
6436 | pr_notice("brightness: will use unverified default: " |
6437 | "brightness_mode=%d\n", brightness_mode); | |
6438 | pr_notice("brightness: please report to %s whether it works well " | |
6439 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
59fe4fe3 HMH |
6440 | } |
6441 | ||
7d9745cf HMH |
6442 | /* Added by mistake in early 2007. Probably useless, but it could |
6443 | * be working around some unknown firmware problem where the value | |
6444 | * read at startup doesn't match the real hardware state... so leave | |
6445 | * it in place just in case */ | |
56b6aeb0 HMH |
6446 | backlight_update_status(ibm_backlight_device); |
6447 | ||
347a2686 HMH |
6448 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6449 | "brightness: registering brightness hotkeys " | |
6450 | "as change notification\n"); | |
6451 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6452 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6453 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6454 | return 0; |
6455 | } | |
6456 | ||
fd3c3a42 | 6457 | static void brightness_suspend(void) |
0e501834 HMH |
6458 | { |
6459 | tpacpi_brightness_checkpoint_nvram(); | |
6460 | } | |
6461 | ||
6462 | static void brightness_shutdown(void) | |
6463 | { | |
6464 | tpacpi_brightness_checkpoint_nvram(); | |
6465 | } | |
6466 | ||
56b6aeb0 HMH |
6467 | static void brightness_exit(void) |
6468 | { | |
6469 | if (ibm_backlight_device) { | |
0e501834 | 6470 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6471 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6472 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6473 | } |
0e501834 HMH |
6474 | |
6475 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6476 | } |
6477 | ||
887965e6 | 6478 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6479 | { |
56b6aeb0 HMH |
6480 | int level; |
6481 | ||
35ff8b9f HMH |
6482 | level = brightness_get(NULL); |
6483 | if (level < 0) { | |
887965e6 | 6484 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6485 | } else { |
887965e6 AD |
6486 | seq_printf(m, "level:\t\t%d\n", level); |
6487 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
6488 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
6489 | bright_maxlvl); | |
56b6aeb0 HMH |
6490 | } |
6491 | ||
887965e6 | 6492 | return 0; |
56b6aeb0 HMH |
6493 | } |
6494 | ||
8acb0250 HM |
6495 | static int brightness_write(char *buf) |
6496 | { | |
6497 | int level; | |
4273af8d | 6498 | int rc; |
1da177e4 | 6499 | char *cmd; |
1da177e4 | 6500 | |
4273af8d HMH |
6501 | level = brightness_get(NULL); |
6502 | if (level < 0) | |
6503 | return level; | |
78f81cc4 | 6504 | |
4273af8d | 6505 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6506 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 6507 | if (level < bright_maxlvl) |
4273af8d | 6508 | level++; |
78f81cc4 | 6509 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6510 | if (level > 0) |
6511 | level--; | |
6512 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 6513 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 6514 | /* new level set */ |
78f81cc4 BD |
6515 | } else |
6516 | return -EINVAL; | |
78f81cc4 BD |
6517 | } |
6518 | ||
0e501834 HMH |
6519 | tpacpi_disclose_usertask("procfs brightness", |
6520 | "set level to %d\n", level); | |
6521 | ||
4273af8d HMH |
6522 | /* |
6523 | * Now we know what the final level should be, so we try to set it. | |
6524 | * Doing it this way makes the syscall restartable in case of EINTR | |
6525 | */ | |
6526 | rc = brightness_set(level); | |
347a2686 HMH |
6527 | if (!rc && ibm_backlight_device) |
6528 | backlight_force_update(ibm_backlight_device, | |
6529 | BACKLIGHT_UPDATE_SYSFS); | |
80a8d122 | 6530 | return (rc == -EINTR)? -ERESTARTSYS : rc; |
78f81cc4 BD |
6531 | } |
6532 | ||
a5763f22 HMH |
6533 | static struct ibm_struct brightness_driver_data = { |
6534 | .name = "brightness", | |
6535 | .read = brightness_read, | |
6536 | .write = brightness_write, | |
6537 | .exit = brightness_exit, | |
0e501834 HMH |
6538 | .suspend = brightness_suspend, |
6539 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6540 | }; |
6541 | ||
56b6aeb0 HMH |
6542 | /************************************************************************* |
6543 | * Volume subdriver | |
6544 | */ | |
fb87a811 | 6545 | |
329e4e18 HMH |
6546 | /* |
6547 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6548 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6549 | * | |
6550 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6551 | * ThinkPads only implement the MUTE gate. | |
6552 | * | |
6553 | * EC register 0x30 | |
6554 | * Bit 6: MUTE (1 mutes sound) | |
6555 | * Bit 3-0: Volume | |
6556 | * Other bits should be zero as far as we know. | |
6557 | * | |
6558 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6559 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6560 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6561 | * and we leave them unchanged. | |
6562 | */ | |
6563 | ||
ff850c33 HMH |
6564 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
6565 | ||
0d204c34 HMH |
6566 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
6567 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
6568 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
6569 | ||
cab66613 TI |
6570 | #if SNDRV_CARDS <= 32 |
6571 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
6572 | #else | |
6573 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
6574 | #endif | |
6575 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 6576 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 6577 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
6578 | |
6579 | struct tpacpi_alsa_data { | |
6580 | struct snd_card *card; | |
6581 | struct snd_ctl_elem_id *ctl_mute_id; | |
6582 | struct snd_ctl_elem_id *ctl_vol_id; | |
6583 | }; | |
6584 | ||
6585 | static struct snd_card *alsa_card; | |
6586 | ||
329e4e18 HMH |
6587 | enum { |
6588 | TP_EC_AUDIO = 0x30, | |
6589 | ||
6590 | /* TP_EC_AUDIO bits */ | |
6591 | TP_EC_AUDIO_MUTESW = 6, | |
6592 | ||
6593 | /* TP_EC_AUDIO bitmasks */ | |
6594 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6595 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6596 | ||
6597 | /* Maximum volume */ | |
6598 | TP_EC_VOLUME_MAX = 14, | |
6599 | }; | |
6600 | ||
6601 | enum tpacpi_volume_access_mode { | |
6602 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6603 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6604 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6605 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6606 | TPACPI_VOL_MODE_MAX | |
6607 | }; | |
6608 | ||
a112ceee HMH |
6609 | enum tpacpi_volume_capabilities { |
6610 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6611 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6612 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6613 | TPACPI_VOL_CAP_MAX | |
6614 | }; | |
6615 | ||
329e4e18 HMH |
6616 | static enum tpacpi_volume_access_mode volume_mode = |
6617 | TPACPI_VOL_MODE_MAX; | |
6618 | ||
a112ceee | 6619 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 6620 | static bool volume_control_allowed; |
f74a27d4 | 6621 | |
329e4e18 HMH |
6622 | /* |
6623 | * Used to syncronize writers to TP_EC_AUDIO and | |
6624 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
6625 | */ | |
6626 | static struct mutex volume_mutex; | |
6627 | ||
6628 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 6629 | { |
329e4e18 HMH |
6630 | u8 lec = 0; |
6631 | u8 b_nvram; | |
a112ceee | 6632 | u8 ec_mask; |
329e4e18 HMH |
6633 | |
6634 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
6635 | return; | |
c7ac6291 HMH |
6636 | if (!volume_control_allowed) |
6637 | return; | |
329e4e18 HMH |
6638 | |
6639 | vdbg_printk(TPACPI_DBG_MIXER, | |
6640 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 6641 | |
a112ceee HMH |
6642 | if (tp_features.mixer_no_level_control) |
6643 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6644 | else | |
6645 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6646 | ||
329e4e18 HMH |
6647 | if (mutex_lock_killable(&volume_mutex) < 0) |
6648 | return; | |
6649 | ||
6650 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6651 | goto unlock; | |
6652 | lec &= ec_mask; | |
6653 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6654 | ||
6655 | if (lec != (b_nvram & ec_mask)) { | |
6656 | /* NVRAM needs update */ | |
6657 | b_nvram &= ~ec_mask; | |
6658 | b_nvram |= lec; | |
6659 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6660 | dbg_printk(TPACPI_DBG_MIXER, | |
6661 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6662 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 6663 | } else { |
329e4e18 HMH |
6664 | vdbg_printk(TPACPI_DBG_MIXER, |
6665 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6666 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
6667 | } |
6668 | ||
329e4e18 HMH |
6669 | unlock: |
6670 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
6671 | } |
6672 | ||
329e4e18 | 6673 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 6674 | { |
329e4e18 | 6675 | u8 s; |
78f81cc4 | 6676 | |
329e4e18 HMH |
6677 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
6678 | return -EIO; | |
78f81cc4 | 6679 | |
329e4e18 | 6680 | *status = s; |
1da177e4 | 6681 | |
329e4e18 | 6682 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 6683 | |
329e4e18 HMH |
6684 | return 0; |
6685 | } | |
78f81cc4 | 6686 | |
329e4e18 HMH |
6687 | static int volume_get_status(u8 *status) |
6688 | { | |
6689 | return volume_get_status_ec(status); | |
6690 | } | |
78f81cc4 | 6691 | |
329e4e18 HMH |
6692 | static int volume_set_status_ec(const u8 status) |
6693 | { | |
6694 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6695 | return -EIO; | |
78f81cc4 | 6696 | |
329e4e18 HMH |
6697 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
6698 | ||
6699 | return 0; | |
6700 | } | |
6701 | ||
6702 | static int volume_set_status(const u8 status) | |
6703 | { | |
6704 | return volume_set_status_ec(status); | |
6705 | } | |
6706 | ||
88cc8377 HMH |
6707 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6708 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
6709 | { |
6710 | int rc; | |
6711 | u8 s, n; | |
6712 | ||
6713 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6714 | return -EINTR; | |
6715 | ||
6716 | rc = volume_get_status_ec(&s); | |
6717 | if (rc) | |
6718 | goto unlock; | |
6719 | ||
6720 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6721 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6722 | ||
88cc8377 | 6723 | if (n != s) { |
329e4e18 | 6724 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6725 | if (!rc) |
6726 | rc = 1; | |
6727 | } | |
329e4e18 HMH |
6728 | |
6729 | unlock: | |
6730 | mutex_unlock(&volume_mutex); | |
6731 | return rc; | |
6732 | } | |
6733 | ||
88cc8377 HMH |
6734 | static int volume_alsa_set_mute(const bool mute) |
6735 | { | |
6736 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
6737 | (mute) ? "" : "un"); | |
6738 | return __volume_set_mute_ec(mute); | |
6739 | } | |
6740 | ||
329e4e18 HMH |
6741 | static int volume_set_mute(const bool mute) |
6742 | { | |
88cc8377 HMH |
6743 | int rc; |
6744 | ||
329e4e18 HMH |
6745 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
6746 | (mute) ? "" : "un"); | |
88cc8377 HMH |
6747 | |
6748 | rc = __volume_set_mute_ec(mute); | |
6749 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
6750 | } |
6751 | ||
88cc8377 HMH |
6752 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6753 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
6754 | { |
6755 | int rc; | |
6756 | u8 s, n; | |
6757 | ||
6758 | if (vol > TP_EC_VOLUME_MAX) | |
6759 | return -EINVAL; | |
6760 | ||
6761 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6762 | return -EINTR; | |
6763 | ||
6764 | rc = volume_get_status_ec(&s); | |
6765 | if (rc) | |
6766 | goto unlock; | |
6767 | ||
6768 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6769 | ||
88cc8377 | 6770 | if (n != s) { |
329e4e18 | 6771 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6772 | if (!rc) |
6773 | rc = 1; | |
6774 | } | |
329e4e18 HMH |
6775 | |
6776 | unlock: | |
6777 | mutex_unlock(&volume_mutex); | |
6778 | return rc; | |
6779 | } | |
6780 | ||
88cc8377 | 6781 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
6782 | { |
6783 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
6784 | "ALSA: trying to set volume level to %hu\n", vol); |
6785 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
6786 | } |
6787 | ||
0d204c34 HMH |
6788 | static void volume_alsa_notify_change(void) |
6789 | { | |
6790 | struct tpacpi_alsa_data *d; | |
6791 | ||
6792 | if (alsa_card && alsa_card->private_data) { | |
6793 | d = alsa_card->private_data; | |
6794 | if (d->ctl_mute_id) | |
6795 | snd_ctl_notify(alsa_card, | |
6796 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6797 | d->ctl_mute_id); | |
6798 | if (d->ctl_vol_id) | |
6799 | snd_ctl_notify(alsa_card, | |
6800 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6801 | d->ctl_vol_id); | |
6802 | } | |
6803 | } | |
6804 | ||
6805 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
6806 | struct snd_ctl_elem_info *uinfo) | |
6807 | { | |
6808 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
6809 | uinfo->count = 1; | |
6810 | uinfo->value.integer.min = 0; | |
6811 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
6812 | return 0; | |
6813 | } | |
6814 | ||
6815 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
6816 | struct snd_ctl_elem_value *ucontrol) | |
6817 | { | |
6818 | u8 s; | |
6819 | int rc; | |
6820 | ||
6821 | rc = volume_get_status(&s); | |
6822 | if (rc < 0) | |
6823 | return rc; | |
6824 | ||
6825 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
6826 | return 0; | |
6827 | } | |
6828 | ||
6829 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
6830 | struct snd_ctl_elem_value *ucontrol) | |
6831 | { | |
38e11cde HMH |
6832 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
6833 | ucontrol->value.integer.value[0]); | |
88cc8377 | 6834 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6835 | } |
6836 | ||
6837 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
6838 | ||
6839 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
6840 | struct snd_ctl_elem_value *ucontrol) | |
6841 | { | |
6842 | u8 s; | |
6843 | int rc; | |
6844 | ||
6845 | rc = volume_get_status(&s); | |
6846 | if (rc < 0) | |
6847 | return rc; | |
6848 | ||
6849 | ucontrol->value.integer.value[0] = | |
6850 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
6851 | return 0; | |
6852 | } | |
6853 | ||
6854 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
6855 | struct snd_ctl_elem_value *ucontrol) | |
6856 | { | |
38e11cde HMH |
6857 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
6858 | ucontrol->value.integer.value[0] ? | |
6859 | "un" : ""); | |
88cc8377 | 6860 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6861 | } |
6862 | ||
b859f159 | 6863 | static struct snd_kcontrol_new volume_alsa_control_vol = { |
0d204c34 HMH |
6864 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
6865 | .name = "Console Playback Volume", | |
6866 | .index = 0, | |
6867 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6868 | .info = volume_alsa_vol_info, | |
6869 | .get = volume_alsa_vol_get, | |
6870 | }; | |
6871 | ||
b859f159 | 6872 | static struct snd_kcontrol_new volume_alsa_control_mute = { |
0d204c34 HMH |
6873 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
6874 | .name = "Console Playback Switch", | |
6875 | .index = 0, | |
6876 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6877 | .info = volume_alsa_mute_info, | |
6878 | .get = volume_alsa_mute_get, | |
6879 | }; | |
6880 | ||
fd3c3a42 | 6881 | static void volume_suspend(void) |
329e4e18 HMH |
6882 | { |
6883 | tpacpi_volume_checkpoint_nvram(); | |
6884 | } | |
6885 | ||
0d204c34 HMH |
6886 | static void volume_resume(void) |
6887 | { | |
6888 | volume_alsa_notify_change(); | |
6889 | } | |
6890 | ||
329e4e18 HMH |
6891 | static void volume_shutdown(void) |
6892 | { | |
6893 | tpacpi_volume_checkpoint_nvram(); | |
6894 | } | |
6895 | ||
6896 | static void volume_exit(void) | |
6897 | { | |
0d204c34 HMH |
6898 | if (alsa_card) { |
6899 | snd_card_free(alsa_card); | |
6900 | alsa_card = NULL; | |
6901 | } | |
6902 | ||
329e4e18 HMH |
6903 | tpacpi_volume_checkpoint_nvram(); |
6904 | } | |
6905 | ||
0d204c34 HMH |
6906 | static int __init volume_create_alsa_mixer(void) |
6907 | { | |
6908 | struct snd_card *card; | |
6909 | struct tpacpi_alsa_data *data; | |
6910 | struct snd_kcontrol *ctl_vol; | |
6911 | struct snd_kcontrol *ctl_mute; | |
6912 | int rc; | |
6913 | ||
89235e55 TI |
6914 | rc = snd_card_new(&tpacpi_pdev->dev, |
6915 | alsa_index, alsa_id, THIS_MODULE, | |
6916 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 6917 | if (rc < 0 || !card) { |
0978e012 | 6918 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
6919 | return 1; |
6920 | } | |
0d204c34 HMH |
6921 | |
6922 | BUG_ON(!card->private_data); | |
6923 | data = card->private_data; | |
6924 | data->card = card; | |
6925 | ||
6926 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
6927 | sizeof(card->driver)); | |
6928 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
6929 | sizeof(card->shortname)); | |
6930 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
6931 | (thinkpad_id.ec_version_str) ? | |
6932 | thinkpad_id.ec_version_str : "(unknown)"); | |
6933 | snprintf(card->longname, sizeof(card->longname), | |
6934 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
6935 | (thinkpad_id.ec_version_str) ? | |
6936 | thinkpad_id.ec_version_str : "unknown"); | |
6937 | ||
6938 | if (volume_control_allowed) { | |
6939 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
6940 | volume_alsa_control_vol.access = | |
6941 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6942 | ||
6943 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
6944 | volume_alsa_control_mute.access = | |
6945 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6946 | } | |
6947 | ||
6948 | if (!tp_features.mixer_no_level_control) { | |
6949 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
6950 | rc = snd_ctl_add(card, ctl_vol); | |
6951 | if (rc < 0) { | |
0978e012 JP |
6952 | pr_err("Failed to create ALSA volume control: %d\n", |
6953 | rc); | |
74c75c18 | 6954 | goto err_exit; |
78f81cc4 | 6955 | } |
0d204c34 HMH |
6956 | data->ctl_vol_id = &ctl_vol->id; |
6957 | } | |
78f81cc4 | 6958 | |
0d204c34 HMH |
6959 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
6960 | rc = snd_ctl_add(card, ctl_mute); | |
6961 | if (rc < 0) { | |
0978e012 | 6962 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 6963 | goto err_exit; |
0d204c34 HMH |
6964 | } |
6965 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 6966 | |
0d204c34 | 6967 | rc = snd_card_register(card); |
0d204c34 | 6968 | if (rc < 0) { |
0978e012 | 6969 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 6970 | goto err_exit; |
0d204c34 HMH |
6971 | } |
6972 | ||
6973 | alsa_card = card; | |
74c75c18 HMH |
6974 | return 0; |
6975 | ||
6976 | err_exit: | |
6977 | snd_card_free(card); | |
6978 | return 1; | |
0d204c34 HMH |
6979 | } |
6980 | ||
a112ceee HMH |
6981 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
6982 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
6983 | ||
6984 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
6985 | /* Whitelist volume level on all IBM by default */ | |
6986 | { .vendor = PCI_VENDOR_ID_IBM, | |
6987 | .bios = TPACPI_MATCH_ANY, | |
6988 | .ec = TPACPI_MATCH_ANY, | |
6989 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
6990 | ||
6991 | /* Lenovo models with volume control (needs confirmation) */ | |
6992 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
6993 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
6994 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
6995 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
6996 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
6997 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
6998 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
6999 | ||
7000 | /* Whitelist mute-only on all Lenovo by default */ | |
7001 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7002 | .bios = TPACPI_MATCH_ANY, | |
7003 | .ec = TPACPI_MATCH_ANY, | |
7004 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7005 | }; | |
7006 | ||
329e4e18 HMH |
7007 | static int __init volume_init(struct ibm_init_struct *iibm) |
7008 | { | |
a112ceee | 7009 | unsigned long quirks; |
0d204c34 | 7010 | int rc; |
a112ceee | 7011 | |
329e4e18 HMH |
7012 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7013 | ||
7014 | mutex_init(&volume_mutex); | |
7015 | ||
7016 | /* | |
7017 | * Check for module parameter bogosity, note that we | |
7018 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7019 | * able to detect "unspecified" | |
7020 | */ | |
7021 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7022 | return -EINVAL; | |
7023 | ||
7024 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
0978e012 JP |
7025 | pr_err("UCMS step volume mode not implemented, " |
7026 | "please contact %s\n", TPACPI_MAIL); | |
329e4e18 HMH |
7027 | return 1; |
7028 | } | |
7029 | ||
a112ceee HMH |
7030 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7031 | return -EINVAL; | |
7032 | ||
0d204c34 HMH |
7033 | /* |
7034 | * The ALSA mixer is our primary interface. | |
7035 | * When disabled, don't install the subdriver at all | |
7036 | */ | |
7037 | if (!alsa_enable) { | |
7038 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7039 | "ALSA mixer disabled by parameter, " | |
7040 | "not loading volume subdriver...\n"); | |
7041 | return 1; | |
7042 | } | |
7043 | ||
a112ceee HMH |
7044 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7045 | ARRAY_SIZE(volume_quirk_table)); | |
7046 | ||
7047 | switch (volume_capabilities) { | |
7048 | case TPACPI_VOL_CAP_AUTO: | |
7049 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7050 | tp_features.mixer_no_level_control = 1; | |
7051 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7052 | tp_features.mixer_no_level_control = 0; | |
7053 | else | |
7054 | return 1; /* no mixer */ | |
7055 | break; | |
7056 | case TPACPI_VOL_CAP_VOLMUTE: | |
7057 | tp_features.mixer_no_level_control = 0; | |
7058 | break; | |
7059 | case TPACPI_VOL_CAP_MUTEONLY: | |
7060 | tp_features.mixer_no_level_control = 1; | |
7061 | break; | |
7062 | default: | |
7063 | return 1; | |
7064 | } | |
7065 | ||
7066 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7067 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7068 | "using user-supplied volume_capabilities=%d\n", | |
7069 | volume_capabilities); | |
7070 | ||
329e4e18 HMH |
7071 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7072 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7073 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7074 | ||
7075 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7076 | "driver auto-selected volume_mode=%d\n", | |
7077 | volume_mode); | |
7078 | } else { | |
7079 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7080 | "using user-supplied volume_mode=%d\n", | |
7081 | volume_mode); | |
7082 | } | |
7083 | ||
7084 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7085 | "mute is supported, volume control is %s\n", |
7086 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7087 | |
0d204c34 HMH |
7088 | rc = volume_create_alsa_mixer(); |
7089 | if (rc) { | |
0978e012 | 7090 | pr_err("Could not create the ALSA mixer interface\n"); |
0d204c34 HMH |
7091 | return rc; |
7092 | } | |
7093 | ||
0978e012 | 7094 | pr_info("Console audio control enabled, mode: %s\n", |
c7ac6291 HMH |
7095 | (volume_control_allowed) ? |
7096 | "override (read/write)" : | |
7097 | "monitor (read only)"); | |
7098 | ||
0d204c34 HMH |
7099 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7100 | "registering volume hotkeys as change notification\n"); | |
7101 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7102 | | TP_ACPI_HKEY_VOLUP_MASK | |
7103 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7104 | | TP_ACPI_HKEY_MUTE_MASK); | |
7105 | ||
329e4e18 HMH |
7106 | return 0; |
7107 | } | |
f74a27d4 | 7108 | |
887965e6 | 7109 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7110 | { |
329e4e18 | 7111 | u8 status; |
78f81cc4 | 7112 | |
329e4e18 | 7113 | if (volume_get_status(&status) < 0) { |
887965e6 | 7114 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7115 | } else { |
a112ceee | 7116 | if (tp_features.mixer_no_level_control) |
887965e6 | 7117 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7118 | else |
887965e6 | 7119 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7120 | status & TP_EC_AUDIO_LVL_MSK); |
7121 | ||
887965e6 | 7122 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7123 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7124 | |
c7ac6291 | 7125 | if (volume_control_allowed) { |
887965e6 | 7126 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7127 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 7128 | seq_printf(m, |
c7ac6291 | 7129 | "commands:\tup, down\n"); |
887965e6 | 7130 | seq_printf(m, |
c7ac6291 HMH |
7131 | "commands:\tlevel <level>" |
7132 | " (<level> is 0-%d)\n", | |
7133 | TP_EC_VOLUME_MAX); | |
7134 | } | |
78f81cc4 BD |
7135 | } |
7136 | } | |
7137 | ||
7138 | return 0; | |
7139 | } | |
7140 | ||
78f81cc4 BD |
7141 | static int volume_write(char *buf) |
7142 | { | |
329e4e18 HMH |
7143 | u8 s; |
7144 | u8 new_level, new_mute; | |
7145 | int l; | |
78f81cc4 | 7146 | char *cmd; |
329e4e18 | 7147 | int rc; |
78f81cc4 | 7148 | |
c7ac6291 HMH |
7149 | /* |
7150 | * We do allow volume control at driver startup, so that the | |
7151 | * user can set initial state through the volume=... parameter hack. | |
7152 | */ | |
7153 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7154 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7155 | tp_warned.volume_ctrl_forbidden = 1; | |
0978e012 JP |
7156 | pr_notice("Console audio control in monitor mode, " |
7157 | "changes are not allowed\n"); | |
7158 | pr_notice("Use the volume_control=1 module parameter " | |
7159 | "to enable volume control\n"); | |
c7ac6291 HMH |
7160 | } |
7161 | return -EPERM; | |
7162 | } | |
7163 | ||
329e4e18 HMH |
7164 | rc = volume_get_status(&s); |
7165 | if (rc < 0) | |
7166 | return rc; | |
78f81cc4 | 7167 | |
329e4e18 HMH |
7168 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7169 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7170 | ||
7171 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7172 | if (!tp_features.mixer_no_level_control) { |
7173 | if (strlencmp(cmd, "up") == 0) { | |
7174 | if (new_mute) | |
7175 | new_mute = 0; | |
7176 | else if (new_level < TP_EC_VOLUME_MAX) | |
7177 | new_level++; | |
7178 | continue; | |
7179 | } else if (strlencmp(cmd, "down") == 0) { | |
7180 | if (new_mute) | |
7181 | new_mute = 0; | |
7182 | else if (new_level > 0) | |
7183 | new_level--; | |
7184 | continue; | |
7185 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7186 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7187 | new_level = l; | |
7188 | continue; | |
7189 | } | |
7190 | } | |
7191 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7192 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7193 | else if (strlencmp(cmd, "unmute") == 0) |
7194 | new_mute = 0; | |
7195 | else | |
1da177e4 | 7196 | return -EINVAL; |
329e4e18 | 7197 | } |
1da177e4 | 7198 | |
a112ceee HMH |
7199 | if (tp_features.mixer_no_level_control) { |
7200 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7201 | new_mute ? "" : "un"); | |
7202 | rc = volume_set_mute(!!new_mute); | |
7203 | } else { | |
7204 | tpacpi_disclose_usertask("procfs volume", | |
7205 | "%smute and set level to %d\n", | |
7206 | new_mute ? "" : "un", new_level); | |
7207 | rc = volume_set_status(new_mute | new_level); | |
7208 | } | |
0d204c34 | 7209 | volume_alsa_notify_change(); |
78f81cc4 | 7210 | |
329e4e18 | 7211 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7212 | } |
7213 | ||
a5763f22 HMH |
7214 | static struct ibm_struct volume_driver_data = { |
7215 | .name = "volume", | |
7216 | .read = volume_read, | |
7217 | .write = volume_write, | |
329e4e18 HMH |
7218 | .exit = volume_exit, |
7219 | .suspend = volume_suspend, | |
0d204c34 | 7220 | .resume = volume_resume, |
329e4e18 | 7221 | .shutdown = volume_shutdown, |
a5763f22 | 7222 | }; |
56b6aeb0 | 7223 | |
ff850c33 HMH |
7224 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7225 | ||
7226 | #define alsa_card NULL | |
7227 | ||
7228 | static void inline volume_alsa_notify_change(void) | |
7229 | { | |
7230 | } | |
7231 | ||
7232 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7233 | { | |
0978e012 | 7234 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7235 | |
7236 | return 1; | |
7237 | } | |
7238 | ||
7239 | static struct ibm_struct volume_driver_data = { | |
7240 | .name = "volume", | |
7241 | }; | |
7242 | ||
7243 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7244 | ||
56b6aeb0 HMH |
7245 | /************************************************************************* |
7246 | * Fan subdriver | |
7247 | */ | |
7248 | ||
7249 | /* | |
7250 | * FAN ACCESS MODES | |
7251 | * | |
efa27145 | 7252 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7253 | * ACPI GFAN method: returns fan level |
7254 | * | |
efa27145 | 7255 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7256 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7257 | * |
efa27145 | 7258 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7259 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7260 | * | |
f51d1a39 HMH |
7261 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7262 | * it for writing. | |
56b6aeb0 | 7263 | * |
efa27145 | 7264 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7265 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7266 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7267 | * |
7268 | * Fan speed changes of any sort (including those caused by the | |
7269 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7270 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7271 | * limited. |
7272 | * | |
7273 | * Reading is not available if GFAN exists. | |
7274 | * Writing is not available if SFAN exists. | |
7275 | * | |
7276 | * Bits | |
7277 | * 7 automatic mode engaged; | |
7278 | * (default operation mode of the ThinkPad) | |
7279 | * fan level is ignored in this mode. | |
f51d1a39 | 7280 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7281 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7282 | * the tachometer while the fan controller ramps up |
7283 | * the speed (which can take up to a few *minutes*). | |
7284 | * Speeds up fan to 100% duty-cycle, which is far above | |
7285 | * the standard RPM levels. It is not impossible that | |
7286 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7287 | * 5-3 unused in some models. Extra bits for fan level |
7288 | * in others, but still useless as all values above | |
7289 | * 7 map to the same speed as level 7 in these models. | |
7290 | * 2-0 fan level (0..7 usually) | |
7291 | * 0x00 = stop | |
7292 | * 0x07 = max (set when temperatures critical) | |
7293 | * Some ThinkPads may have other levels, see | |
efa27145 | 7294 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7295 | * |
7296 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7297 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7298 | * does so, its initial value is meaningless (0x07). |
7299 | * | |
7300 | * For firmware bugs, refer to: | |
7301 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7302 | * | |
7303 | * ---- | |
7304 | * | |
7305 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7306 | * Main fan tachometer reading (in RPM) | |
7307 | * | |
7308 | * This register is present on all ThinkPads with a new-style EC, and | |
7309 | * it is known not to be present on the A21m/e, and T22, as there is | |
7310 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7311 | * ThinkPads from this same time period (and earlier) probably lack the | |
7312 | * tachometer as well. | |
7313 | * | |
877d0310 | 7314 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7315 | * was never fixed by IBM to report the EC firmware version string |
7316 | * probably support the tachometer (like the early X models), so | |
7317 | * detecting it is quite hard. We need more data to know for sure. | |
7318 | * | |
7319 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7320 | * might result. | |
7321 | * | |
f51d1a39 HMH |
7322 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7323 | * mode. | |
56b6aeb0 HMH |
7324 | * |
7325 | * For firmware bugs, refer to: | |
7326 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7327 | * | |
d7377247 HMH |
7328 | * ---- |
7329 | * | |
7330 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7331 | * | |
7332 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7333 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7334 | * is one, the tachometer registers show the speed of the auxiliary | |
7335 | * fan. | |
7336 | * | |
7337 | * Fan control seems to affect both fans, regardless of the state | |
7338 | * of this bit. | |
7339 | * | |
7340 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7341 | * seem to support this (firmware TP-7M). | |
7342 | * | |
efa27145 | 7343 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7344 | * ThinkPad X31, X40, X41. Not available in the X60. |
7345 | * | |
7346 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7347 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7348 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7349 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7350 | * | |
7351 | * The speeds are stored on handles | |
7352 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7353 | * | |
af901ca1 | 7354 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7355 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7356 | * | |
7357 | * ACPI DSDT switches which set is in use depending on various | |
7358 | * factors. | |
7359 | * | |
efa27145 | 7360 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7361 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7362 | * but the ACPI tables just mention level 7. | |
7363 | */ | |
7364 | ||
f74a27d4 HMH |
7365 | enum { /* Fan control constants */ |
7366 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7367 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7368 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7369 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7370 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7371 | |
7372 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7373 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7374 | ||
7375 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7376 | }; | |
7377 | ||
7378 | enum fan_status_access_mode { | |
7379 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7380 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7381 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7382 | }; | |
7383 | ||
7384 | enum fan_control_access_mode { | |
7385 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7386 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7387 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7388 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7389 | }; | |
7390 | ||
7391 | enum fan_control_commands { | |
7392 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7393 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7394 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7395 | * and also watchdog cmd */ | |
7396 | }; | |
7397 | ||
90ab5ee9 | 7398 | static bool fan_control_allowed; |
f74a27d4 | 7399 | |
69ba91cb HMH |
7400 | static enum fan_status_access_mode fan_status_access_mode; |
7401 | static enum fan_control_access_mode fan_control_access_mode; | |
7402 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7403 | |
778b4d74 | 7404 | static u8 fan_control_initial_status; |
fe98a52c | 7405 | static u8 fan_control_desired_level; |
0081b162 | 7406 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7407 | static int fan_watchdog_maxinterval; |
7408 | ||
7409 | static struct mutex fan_mutex; | |
778b4d74 | 7410 | |
25c68a33 | 7411 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7412 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7413 | |
e0c7dfe7 HMH |
7414 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7415 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7416 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7417 | ); /* all others */ | |
e0c7dfe7 | 7418 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7419 | "JFNS", /* 770x-JL */ |
7420 | ); /* all others */ | |
7421 | ||
1c2ece75 HMH |
7422 | /* |
7423 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7424 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7425 | * be in auto mode (0x80). | |
7426 | * | |
7427 | * This is corrected by any write to HFSP either by the driver, or | |
7428 | * by the firmware. | |
7429 | * | |
7430 | * We assume 0x07 really means auto mode while this quirk is active, | |
7431 | * as this is far more likely than the ThinkPad being in level 7, | |
7432 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7433 | * |
7434 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7435 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7436 | */ |
7437 | ||
7d95a3d5 | 7438 | static void fan_quirk1_setup(void) |
1c2ece75 | 7439 | { |
1c2ece75 | 7440 | if (fan_control_initial_status == 0x07) { |
0978e012 JP |
7441 | pr_notice("fan_init: initial fan status is unknown, " |
7442 | "assuming it is in auto mode\n"); | |
7d95a3d5 | 7443 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
7444 | } |
7445 | } | |
7446 | ||
7447 | static void fan_quirk1_handle(u8 *fan_status) | |
7448 | { | |
7449 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7450 | if (*fan_status != fan_control_initial_status) { | |
7451 | /* something changed the HFSP regisnter since | |
7452 | * driver init time, so it is not undefined | |
7453 | * anymore */ | |
7454 | tp_features.fan_ctrl_status_undef = 0; | |
7455 | } else { | |
7456 | /* Return most likely status. In fact, it | |
7457 | * might be the only possible status */ | |
7458 | *fan_status = TP_EC_FAN_AUTO; | |
7459 | } | |
7460 | } | |
7461 | } | |
7462 | ||
d7377247 HMH |
7463 | /* Select main fan on X60/X61, NOOP on others */ |
7464 | static bool fan_select_fan1(void) | |
7465 | { | |
7466 | if (tp_features.second_fan) { | |
7467 | u8 val; | |
7468 | ||
7469 | if (ec_read(fan_select_offset, &val) < 0) | |
7470 | return false; | |
7471 | val &= 0xFEU; | |
7472 | if (ec_write(fan_select_offset, val) < 0) | |
7473 | return false; | |
7474 | } | |
7475 | return true; | |
7476 | } | |
7477 | ||
7478 | /* Select secondary fan on X60/X61 */ | |
7479 | static bool fan_select_fan2(void) | |
7480 | { | |
7481 | u8 val; | |
7482 | ||
7483 | if (!tp_features.second_fan) | |
7484 | return false; | |
7485 | ||
7486 | if (ec_read(fan_select_offset, &val) < 0) | |
7487 | return false; | |
7488 | val |= 0x01U; | |
7489 | if (ec_write(fan_select_offset, val) < 0) | |
7490 | return false; | |
7491 | ||
7492 | return true; | |
7493 | } | |
7494 | ||
fe98a52c | 7495 | /* |
b21a15f6 | 7496 | * Call with fan_mutex held |
fe98a52c | 7497 | */ |
b21a15f6 | 7498 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7499 | { |
b21a15f6 HMH |
7500 | if ((status & |
7501 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7502 | if (status > 7) | |
7503 | fan_control_desired_level = 7; | |
7504 | else | |
7505 | fan_control_desired_level = status; | |
7506 | } | |
7507 | } | |
fe98a52c | 7508 | |
b21a15f6 HMH |
7509 | static int fan_get_status(u8 *status) |
7510 | { | |
7511 | u8 s; | |
fe98a52c | 7512 | |
b21a15f6 HMH |
7513 | /* TODO: |
7514 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7515 | |
b21a15f6 | 7516 | switch (fan_status_access_mode) { |
eceeb437 | 7517 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 7518 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 7519 | int res; |
fe98a52c | 7520 | |
eceeb437 | 7521 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 7522 | return -EIO; |
fe98a52c | 7523 | |
b21a15f6 | 7524 | if (likely(status)) |
eceeb437 | 7525 | *status = res & 0x07; |
fe98a52c | 7526 | |
b21a15f6 | 7527 | break; |
eceeb437 | 7528 | } |
b21a15f6 HMH |
7529 | case TPACPI_FAN_RD_TPEC: |
7530 | /* all except 570, 600e/x, 770e, 770x */ | |
7531 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7532 | return -EIO; | |
7533 | ||
1c2ece75 | 7534 | if (likely(status)) { |
b21a15f6 | 7535 | *status = s; |
1c2ece75 HMH |
7536 | fan_quirk1_handle(status); |
7537 | } | |
fe98a52c | 7538 | |
fe98a52c | 7539 | break; |
b21a15f6 | 7540 | |
fe98a52c | 7541 | default: |
b21a15f6 | 7542 | return -ENXIO; |
fe98a52c HMH |
7543 | } |
7544 | ||
b21a15f6 HMH |
7545 | return 0; |
7546 | } | |
fe98a52c | 7547 | |
b21a15f6 HMH |
7548 | static int fan_get_status_safe(u8 *status) |
7549 | { | |
7550 | int rc; | |
7551 | u8 s; | |
fe98a52c | 7552 | |
7646ea88 | 7553 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7554 | return -ERESTARTSYS; |
7555 | rc = fan_get_status(&s); | |
7556 | if (!rc) | |
7557 | fan_update_desired_level(s); | |
7558 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7559 | |
b21a15f6 HMH |
7560 | if (status) |
7561 | *status = s; | |
fe98a52c | 7562 | |
b21a15f6 HMH |
7563 | return rc; |
7564 | } | |
7565 | ||
7566 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7567 | { |
b21a15f6 | 7568 | u8 hi, lo; |
fe98a52c | 7569 | |
b21a15f6 HMH |
7570 | switch (fan_status_access_mode) { |
7571 | case TPACPI_FAN_RD_TPEC: | |
7572 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7573 | if (unlikely(!fan_select_fan1())) |
7574 | return -EIO; | |
b21a15f6 HMH |
7575 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7576 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7577 | return -EIO; | |
fe98a52c | 7578 | |
b21a15f6 HMH |
7579 | if (likely(speed)) |
7580 | *speed = (hi << 8) | lo; | |
fe98a52c | 7581 | |
b21a15f6 | 7582 | break; |
fe98a52c | 7583 | |
b21a15f6 HMH |
7584 | default: |
7585 | return -ENXIO; | |
7586 | } | |
fe98a52c | 7587 | |
b21a15f6 | 7588 | return 0; |
fe98a52c HMH |
7589 | } |
7590 | ||
d7377247 HMH |
7591 | static int fan2_get_speed(unsigned int *speed) |
7592 | { | |
7593 | u8 hi, lo; | |
7594 | bool rc; | |
7595 | ||
7596 | switch (fan_status_access_mode) { | |
7597 | case TPACPI_FAN_RD_TPEC: | |
7598 | /* all except 570, 600e/x, 770e, 770x */ | |
7599 | if (unlikely(!fan_select_fan2())) | |
7600 | return -EIO; | |
7601 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7602 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7603 | fan_select_fan1(); /* play it safe */ | |
7604 | if (rc) | |
7605 | return -EIO; | |
7606 | ||
7607 | if (likely(speed)) | |
7608 | *speed = (hi << 8) | lo; | |
7609 | ||
7610 | break; | |
7611 | ||
7612 | default: | |
7613 | return -ENXIO; | |
7614 | } | |
7615 | ||
7616 | return 0; | |
7617 | } | |
7618 | ||
b21a15f6 | 7619 | static int fan_set_level(int level) |
fe98a52c | 7620 | { |
b21a15f6 HMH |
7621 | if (!fan_control_allowed) |
7622 | return -EPERM; | |
fe98a52c | 7623 | |
b21a15f6 HMH |
7624 | switch (fan_control_access_mode) { |
7625 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7626 | if (level >= 0 && level <= 7) { | |
7627 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7628 | return -EIO; | |
7629 | } else | |
7630 | return -EINVAL; | |
7631 | break; | |
fe98a52c | 7632 | |
b21a15f6 HMH |
7633 | case TPACPI_FAN_WR_ACPI_FANS: |
7634 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7635 | if (!(level & TP_EC_FAN_AUTO) && |
7636 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7637 | ((level < 0) || (level > 7))) |
7638 | return -EINVAL; | |
fe98a52c | 7639 | |
b21a15f6 HMH |
7640 | /* safety net should the EC not support AUTO |
7641 | * or FULLSPEED mode bits and just ignore them */ | |
7642 | if (level & TP_EC_FAN_FULLSPEED) | |
7643 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7644 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7645 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7646 | |
b21a15f6 HMH |
7647 | if (!acpi_ec_write(fan_status_offset, level)) |
7648 | return -EIO; | |
7649 | else | |
7650 | tp_features.fan_ctrl_status_undef = 0; | |
7651 | break; | |
fe98a52c | 7652 | |
b21a15f6 HMH |
7653 | default: |
7654 | return -ENXIO; | |
7655 | } | |
74a60c0f HMH |
7656 | |
7657 | vdbg_printk(TPACPI_DBG_FAN, | |
7658 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7659 | return 0; |
fe98a52c HMH |
7660 | } |
7661 | ||
b21a15f6 | 7662 | static int fan_set_level_safe(int level) |
fe98a52c | 7663 | { |
b21a15f6 | 7664 | int rc; |
fe98a52c | 7665 | |
b21a15f6 HMH |
7666 | if (!fan_control_allowed) |
7667 | return -EPERM; | |
fe98a52c | 7668 | |
7646ea88 | 7669 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7670 | return -ERESTARTSYS; |
fe98a52c | 7671 | |
b21a15f6 HMH |
7672 | if (level == TPACPI_FAN_LAST_LEVEL) |
7673 | level = fan_control_desired_level; | |
fe98a52c | 7674 | |
b21a15f6 HMH |
7675 | rc = fan_set_level(level); |
7676 | if (!rc) | |
7677 | fan_update_desired_level(level); | |
7678 | ||
7679 | mutex_unlock(&fan_mutex); | |
7680 | return rc; | |
fe98a52c HMH |
7681 | } |
7682 | ||
b21a15f6 | 7683 | static int fan_set_enable(void) |
fe98a52c | 7684 | { |
b21a15f6 HMH |
7685 | u8 s; |
7686 | int rc; | |
fe98a52c | 7687 | |
ecf2a80a HMH |
7688 | if (!fan_control_allowed) |
7689 | return -EPERM; | |
7690 | ||
7646ea88 | 7691 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7692 | return -ERESTARTSYS; |
fe98a52c | 7693 | |
b21a15f6 HMH |
7694 | switch (fan_control_access_mode) { |
7695 | case TPACPI_FAN_WR_ACPI_FANS: | |
7696 | case TPACPI_FAN_WR_TPEC: | |
7697 | rc = fan_get_status(&s); | |
7698 | if (rc < 0) | |
7699 | break; | |
fe98a52c | 7700 | |
b21a15f6 HMH |
7701 | /* Don't go out of emergency fan mode */ |
7702 | if (s != 7) { | |
7703 | s &= 0x07; | |
7704 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7705 | } | |
fe98a52c | 7706 | |
b21a15f6 HMH |
7707 | if (!acpi_ec_write(fan_status_offset, s)) |
7708 | rc = -EIO; | |
7709 | else { | |
7710 | tp_features.fan_ctrl_status_undef = 0; | |
7711 | rc = 0; | |
7712 | } | |
7713 | break; | |
fe98a52c | 7714 | |
b21a15f6 HMH |
7715 | case TPACPI_FAN_WR_ACPI_SFAN: |
7716 | rc = fan_get_status(&s); | |
7717 | if (rc < 0) | |
7718 | break; | |
fe98a52c | 7719 | |
b21a15f6 | 7720 | s &= 0x07; |
fe98a52c | 7721 | |
b21a15f6 HMH |
7722 | /* Set fan to at least level 4 */ |
7723 | s |= 4; | |
fe08bc4b | 7724 | |
b21a15f6 | 7725 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7726 | rc = -EIO; |
b21a15f6 HMH |
7727 | else |
7728 | rc = 0; | |
7729 | break; | |
78f81cc4 | 7730 | |
b21a15f6 HMH |
7731 | default: |
7732 | rc = -ENXIO; | |
7733 | } | |
5fba344c | 7734 | |
b21a15f6 | 7735 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7736 | |
7737 | if (!rc) | |
7738 | vdbg_printk(TPACPI_DBG_FAN, | |
7739 | "fan control: set fan control register to 0x%02x\n", | |
7740 | s); | |
b21a15f6 | 7741 | return rc; |
69ba91cb | 7742 | } |
78f81cc4 | 7743 | |
b21a15f6 | 7744 | static int fan_set_disable(void) |
78f81cc4 | 7745 | { |
b21a15f6 | 7746 | int rc; |
c52f0aa5 | 7747 | |
b21a15f6 HMH |
7748 | if (!fan_control_allowed) |
7749 | return -EPERM; | |
78f81cc4 | 7750 | |
7646ea88 | 7751 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7752 | return -ERESTARTSYS; |
3ef8a609 | 7753 | |
b21a15f6 HMH |
7754 | rc = 0; |
7755 | switch (fan_control_access_mode) { | |
7756 | case TPACPI_FAN_WR_ACPI_FANS: | |
7757 | case TPACPI_FAN_WR_TPEC: | |
7758 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7759 | rc = -EIO; | |
7760 | else { | |
7761 | fan_control_desired_level = 0; | |
7762 | tp_features.fan_ctrl_status_undef = 0; | |
7763 | } | |
3ef8a609 HMH |
7764 | break; |
7765 | ||
b21a15f6 HMH |
7766 | case TPACPI_FAN_WR_ACPI_SFAN: |
7767 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7768 | rc = -EIO; | |
7769 | else | |
7770 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7771 | break; |
7772 | ||
7773 | default: | |
b21a15f6 | 7774 | rc = -ENXIO; |
78f81cc4 BD |
7775 | } |
7776 | ||
74a60c0f HMH |
7777 | if (!rc) |
7778 | vdbg_printk(TPACPI_DBG_FAN, | |
7779 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7780 | |
fe98a52c | 7781 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7782 | return rc; |
7783 | } | |
7784 | ||
b21a15f6 | 7785 | static int fan_set_speed(int speed) |
c52f0aa5 | 7786 | { |
b21a15f6 | 7787 | int rc; |
c52f0aa5 | 7788 | |
b21a15f6 HMH |
7789 | if (!fan_control_allowed) |
7790 | return -EPERM; | |
3ef8a609 | 7791 | |
7646ea88 | 7792 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7793 | return -ERESTARTSYS; |
c52f0aa5 | 7794 | |
b21a15f6 HMH |
7795 | rc = 0; |
7796 | switch (fan_control_access_mode) { | |
7797 | case TPACPI_FAN_WR_ACPI_FANS: | |
7798 | if (speed >= 0 && speed <= 65535) { | |
7799 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
7800 | speed, speed, speed)) | |
7801 | rc = -EIO; | |
7802 | } else | |
7803 | rc = -EINVAL; | |
c52f0aa5 HMH |
7804 | break; |
7805 | ||
7806 | default: | |
b21a15f6 | 7807 | rc = -ENXIO; |
c52f0aa5 HMH |
7808 | } |
7809 | ||
b21a15f6 HMH |
7810 | mutex_unlock(&fan_mutex); |
7811 | return rc; | |
16663a87 HMH |
7812 | } |
7813 | ||
7814 | static void fan_watchdog_reset(void) | |
7815 | { | |
4985cd0a HMH |
7816 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
7817 | return; | |
7818 | ||
8fef502e | 7819 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
7820 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
7821 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
7822 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
7823 | else | |
7824 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
7825 | } |
7826 | ||
b21a15f6 | 7827 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 7828 | { |
b21a15f6 | 7829 | int rc; |
18ad7996 | 7830 | |
b21a15f6 HMH |
7831 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
7832 | return; | |
a12095c2 | 7833 | |
0978e012 | 7834 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
7835 | rc = fan_set_enable(); |
7836 | if (rc < 0) { | |
0978e012 JP |
7837 | pr_err("fan watchdog: error %d while enabling fan, " |
7838 | "will try again later...\n", -rc); | |
b21a15f6 HMH |
7839 | /* reschedule for later */ |
7840 | fan_watchdog_reset(); | |
7841 | } | |
7842 | } | |
eaa7571b | 7843 | |
b21a15f6 HMH |
7844 | /* |
7845 | * SYSFS fan layout: hwmon compatible (device) | |
7846 | * | |
7847 | * pwm*_enable: | |
7848 | * 0: "disengaged" mode | |
7849 | * 1: manual mode | |
7850 | * 2: native EC "auto" mode (recommended, hardware default) | |
7851 | * | |
7852 | * pwm*: set speed in manual mode, ignored otherwise. | |
7853 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
7854 | * interpolation. | |
7855 | * | |
7856 | * fan*_input: tachometer reading, RPM | |
7857 | * | |
7858 | * | |
7859 | * SYSFS fan layout: extensions | |
7860 | * | |
7861 | * fan_watchdog (driver): | |
7862 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
7863 | */ | |
7864 | ||
7865 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
7866 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
7867 | struct device_attribute *attr, | |
7868 | char *buf) | |
7869 | { | |
7870 | int res, mode; | |
7871 | u8 status; | |
7872 | ||
7873 | res = fan_get_status_safe(&status); | |
7874 | if (res) | |
7875 | return res; | |
7876 | ||
b21a15f6 HMH |
7877 | if (status & TP_EC_FAN_FULLSPEED) { |
7878 | mode = 0; | |
7879 | } else if (status & TP_EC_FAN_AUTO) { | |
7880 | mode = 2; | |
7881 | } else | |
7882 | mode = 1; | |
7883 | ||
7884 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
7885 | } | |
a12095c2 | 7886 | |
b21a15f6 HMH |
7887 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
7888 | struct device_attribute *attr, | |
7889 | const char *buf, size_t count) | |
7890 | { | |
7891 | unsigned long t; | |
7892 | int res, level; | |
7893 | ||
7894 | if (parse_strtoul(buf, 2, &t)) | |
7895 | return -EINVAL; | |
7896 | ||
74a60c0f HMH |
7897 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
7898 | "set fan mode to %lu\n", t); | |
7899 | ||
b21a15f6 HMH |
7900 | switch (t) { |
7901 | case 0: | |
7902 | level = TP_EC_FAN_FULLSPEED; | |
7903 | break; | |
7904 | case 1: | |
7905 | level = TPACPI_FAN_LAST_LEVEL; | |
7906 | break; | |
7907 | case 2: | |
7908 | level = TP_EC_FAN_AUTO; | |
7909 | break; | |
7910 | case 3: | |
7911 | /* reserved for software-controlled auto mode */ | |
7912 | return -ENOSYS; | |
18ad7996 | 7913 | default: |
b21a15f6 | 7914 | return -EINVAL; |
18ad7996 | 7915 | } |
b21a15f6 HMH |
7916 | |
7917 | res = fan_set_level_safe(level); | |
7918 | if (res == -ENXIO) | |
7919 | return -EINVAL; | |
7920 | else if (res < 0) | |
7921 | return res; | |
7922 | ||
7923 | fan_watchdog_reset(); | |
7924 | ||
7925 | return count; | |
18ad7996 HMH |
7926 | } |
7927 | ||
b21a15f6 HMH |
7928 | static struct device_attribute dev_attr_fan_pwm1_enable = |
7929 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
7930 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
7931 | ||
7932 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
7933 | static ssize_t fan_pwm1_show(struct device *dev, | |
7934 | struct device_attribute *attr, | |
7935 | char *buf) | |
fe98a52c | 7936 | { |
b21a15f6 HMH |
7937 | int res; |
7938 | u8 status; | |
fe98a52c | 7939 | |
b21a15f6 HMH |
7940 | res = fan_get_status_safe(&status); |
7941 | if (res) | |
7942 | return res; | |
ecf2a80a | 7943 | |
b21a15f6 HMH |
7944 | if ((status & |
7945 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
7946 | status = fan_control_desired_level; | |
fe98a52c | 7947 | |
b21a15f6 HMH |
7948 | if (status > 7) |
7949 | status = 7; | |
fe98a52c | 7950 | |
b21a15f6 | 7951 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
7952 | } |
7953 | ||
b21a15f6 HMH |
7954 | static ssize_t fan_pwm1_store(struct device *dev, |
7955 | struct device_attribute *attr, | |
7956 | const char *buf, size_t count) | |
18ad7996 | 7957 | { |
b21a15f6 | 7958 | unsigned long s; |
1c6a334e | 7959 | int rc; |
b21a15f6 | 7960 | u8 status, newlevel; |
1c6a334e | 7961 | |
b21a15f6 HMH |
7962 | if (parse_strtoul(buf, 255, &s)) |
7963 | return -EINVAL; | |
7964 | ||
74a60c0f HMH |
7965 | tpacpi_disclose_usertask("hwmon pwm1", |
7966 | "set fan speed to %lu\n", s); | |
7967 | ||
b21a15f6 HMH |
7968 | /* scale down from 0-255 to 0-7 */ |
7969 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 7970 | |
7646ea88 | 7971 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 7972 | return -ERESTARTSYS; |
40ca9fdf | 7973 | |
b21a15f6 HMH |
7974 | rc = fan_get_status(&status); |
7975 | if (!rc && (status & | |
7976 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7977 | rc = fan_set_level(newlevel); | |
7978 | if (rc == -ENXIO) | |
7979 | rc = -EINVAL; | |
7980 | else if (!rc) { | |
7981 | fan_update_desired_level(newlevel); | |
7982 | fan_watchdog_reset(); | |
eaa7571b | 7983 | } |
b21a15f6 | 7984 | } |
1c6a334e | 7985 | |
b21a15f6 HMH |
7986 | mutex_unlock(&fan_mutex); |
7987 | return (rc)? rc : count; | |
7988 | } | |
1c6a334e | 7989 | |
b21a15f6 HMH |
7990 | static struct device_attribute dev_attr_fan_pwm1 = |
7991 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
7992 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 7993 | |
b21a15f6 HMH |
7994 | /* sysfs fan fan1_input ------------------------------------------------ */ |
7995 | static ssize_t fan_fan1_input_show(struct device *dev, | |
7996 | struct device_attribute *attr, | |
7997 | char *buf) | |
7998 | { | |
7999 | int res; | |
8000 | unsigned int speed; | |
1c6a334e | 8001 | |
b21a15f6 HMH |
8002 | res = fan_get_speed(&speed); |
8003 | if (res < 0) | |
8004 | return res; | |
1c6a334e | 8005 | |
b21a15f6 HMH |
8006 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8007 | } | |
18ad7996 | 8008 | |
b21a15f6 HMH |
8009 | static struct device_attribute dev_attr_fan_fan1_input = |
8010 | __ATTR(fan1_input, S_IRUGO, | |
8011 | fan_fan1_input_show, NULL); | |
40ca9fdf | 8012 | |
d7377247 HMH |
8013 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8014 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8015 | struct device_attribute *attr, | |
8016 | char *buf) | |
8017 | { | |
8018 | int res; | |
8019 | unsigned int speed; | |
8020 | ||
8021 | res = fan2_get_speed(&speed); | |
8022 | if (res < 0) | |
8023 | return res; | |
8024 | ||
8025 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8026 | } | |
8027 | ||
8028 | static struct device_attribute dev_attr_fan_fan2_input = | |
8029 | __ATTR(fan2_input, S_IRUGO, | |
8030 | fan_fan2_input_show, NULL); | |
8031 | ||
b21a15f6 HMH |
8032 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
8033 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
8034 | char *buf) | |
8035 | { | |
8036 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8037 | } |
8038 | ||
b21a15f6 HMH |
8039 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
8040 | const char *buf, size_t count) | |
18ad7996 | 8041 | { |
b21a15f6 HMH |
8042 | unsigned long t; |
8043 | ||
8044 | if (parse_strtoul(buf, 120, &t)) | |
8045 | return -EINVAL; | |
40ca9fdf | 8046 | |
ecf2a80a HMH |
8047 | if (!fan_control_allowed) |
8048 | return -EPERM; | |
8049 | ||
b21a15f6 HMH |
8050 | fan_watchdog_maxinterval = t; |
8051 | fan_watchdog_reset(); | |
40ca9fdf | 8052 | |
74a60c0f HMH |
8053 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8054 | ||
b21a15f6 HMH |
8055 | return count; |
8056 | } | |
8057 | ||
8058 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
8059 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
8060 | ||
8061 | /* --------------------------------------------------------------------- */ | |
8062 | static struct attribute *fan_attributes[] = { | |
8063 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
8064 | &dev_attr_fan_fan1_input.attr, | |
d7377247 | 8065 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8066 | NULL |
8067 | }; | |
8068 | ||
8069 | static const struct attribute_group fan_attr_group = { | |
8070 | .attrs = fan_attributes, | |
8071 | }; | |
8072 | ||
d7377247 HMH |
8073 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
8074 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
8075 | |
8076 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
8077 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
8078 | .bios = TPACPI_MATCH_ANY, \ | |
8079 | .ec = TPID(__id1, __id2), \ | |
8080 | .quirks = __quirks } | |
8081 | ||
d7377247 HMH |
8082 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
8083 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
8084 | .bios = TPACPI_MATCH_ANY, \ | |
8085 | .ec = TPID(__id1, __id2), \ | |
8086 | .quirks = __quirks } | |
8087 | ||
7d95a3d5 HMH |
8088 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
8089 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8090 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8091 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8092 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8093 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8094 | }; |
8095 | ||
d7377247 | 8096 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8097 | #undef TPACPI_FAN_QI |
8098 | ||
b21a15f6 HMH |
8099 | static int __init fan_init(struct ibm_init_struct *iibm) |
8100 | { | |
8101 | int rc; | |
7d95a3d5 | 8102 | unsigned long quirks; |
b21a15f6 | 8103 | |
74a60c0f HMH |
8104 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8105 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8106 | |
8107 | mutex_init(&fan_mutex); | |
8108 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8109 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8110 | fan_control_commands = 0; | |
8111 | fan_watchdog_maxinterval = 0; | |
8112 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8113 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8114 | fan_control_desired_level = 7; |
8115 | ||
e28393c0 HMH |
8116 | if (tpacpi_is_ibm()) { |
8117 | TPACPI_ACPIHANDLE_INIT(fans); | |
8118 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8119 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8120 | } | |
b21a15f6 | 8121 | |
7d95a3d5 HMH |
8122 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8123 | ARRAY_SIZE(fan_quirk_table)); | |
8124 | ||
b21a15f6 HMH |
8125 | if (gfan_handle) { |
8126 | /* 570, 600e/x, 770e, 770x */ | |
8127 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8128 | } else { | |
8129 | /* all other ThinkPads: note that even old-style | |
8130 | * ThinkPad ECs supports the fan control register */ | |
8131 | if (likely(acpi_ec_read(fan_status_offset, | |
8132 | &fan_control_initial_status))) { | |
8133 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8134 | if (quirks & TPACPI_FAN_Q1) |
8135 | fan_quirk1_setup(); | |
d7377247 HMH |
8136 | if (quirks & TPACPI_FAN_2FAN) { |
8137 | tp_features.second_fan = 1; | |
8138 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8139 | "secondary fan support enabled\n"); | |
8140 | } | |
b21a15f6 | 8141 | } else { |
0978e012 | 8142 | pr_err("ThinkPad ACPI EC access misbehaving, " |
b21a15f6 HMH |
8143 | "fan status and control unavailable\n"); |
8144 | return 1; | |
8145 | } | |
8146 | } | |
8147 | ||
8148 | if (sfan_handle) { | |
8149 | /* 570, 770x-JL */ | |
8150 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8151 | fan_control_commands |= | |
8152 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8153 | } else { | |
8154 | if (!gfan_handle) { | |
8155 | /* gfan without sfan means no fan control */ | |
8156 | /* all other models implement TP EC 0x2f control */ | |
8157 | ||
8158 | if (fans_handle) { | |
8159 | /* X31, X40, X41 */ | |
8160 | fan_control_access_mode = | |
8161 | TPACPI_FAN_WR_ACPI_FANS; | |
8162 | fan_control_commands |= | |
8163 | TPACPI_FAN_CMD_SPEED | | |
8164 | TPACPI_FAN_CMD_LEVEL | | |
8165 | TPACPI_FAN_CMD_ENABLE; | |
8166 | } else { | |
8167 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8168 | fan_control_commands |= | |
8169 | TPACPI_FAN_CMD_LEVEL | | |
8170 | TPACPI_FAN_CMD_ENABLE; | |
8171 | } | |
fe98a52c | 8172 | } |
b21a15f6 | 8173 | } |
18ad7996 | 8174 | |
74a60c0f HMH |
8175 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8176 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8177 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8178 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8179 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8180 | |
b21a15f6 HMH |
8181 | /* fan control master switch */ |
8182 | if (!fan_control_allowed) { | |
8183 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8184 | fan_control_commands = 0; | |
74a60c0f | 8185 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8186 | "fan control features disabled by parameter\n"); |
18ad7996 | 8187 | } |
40ca9fdf | 8188 | |
b21a15f6 HMH |
8189 | /* update fan_control_desired_level */ |
8190 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8191 | fan_get_status_safe(NULL); | |
fe98a52c | 8192 | |
b21a15f6 HMH |
8193 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8194 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8195 | if (tp_features.second_fan) { |
8196 | /* attach second fan tachometer */ | |
8197 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
8198 | &dev_attr_fan_fan2_input.attr; | |
8199 | } | |
b21a15f6 HMH |
8200 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8201 | &fan_attr_group); | |
b21a15f6 HMH |
8202 | if (rc < 0) |
8203 | return rc; | |
9c0a76e1 HMH |
8204 | |
8205 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8206 | &driver_attr_fan_watchdog); | |
8207 | if (rc < 0) { | |
8208 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8209 | &fan_attr_group); | |
8210 | return rc; | |
8211 | } | |
b21a15f6 HMH |
8212 | return 0; |
8213 | } else | |
8214 | return 1; | |
56b6aeb0 HMH |
8215 | } |
8216 | ||
b21a15f6 | 8217 | static void fan_exit(void) |
56b6aeb0 | 8218 | { |
74a60c0f | 8219 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8220 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8221 | |
b21a15f6 HMH |
8222 | /* FIXME: can we really do this unconditionally? */ |
8223 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8224 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8225 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8226 | |
b21a15f6 | 8227 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8228 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8229 | } |
8230 | ||
fd3c3a42 | 8231 | static void fan_suspend(void) |
75700e53 | 8232 | { |
0081b162 HMH |
8233 | int rc; |
8234 | ||
75700e53 HMH |
8235 | if (!fan_control_allowed) |
8236 | return; | |
8237 | ||
8238 | /* Store fan status in cache */ | |
0081b162 HMH |
8239 | fan_control_resume_level = 0; |
8240 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8241 | if (rc < 0) | |
0978e012 JP |
8242 | pr_notice("failed to read fan level for later " |
8243 | "restore during resume: %d\n", rc); | |
0081b162 HMH |
8244 | |
8245 | /* if it is undefined, don't attempt to restore it. | |
8246 | * KEEP THIS LAST */ | |
75700e53 | 8247 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8248 | fan_control_resume_level = 0; |
75700e53 HMH |
8249 | } |
8250 | ||
8251 | static void fan_resume(void) | |
8252 | { | |
75700e53 HMH |
8253 | u8 current_level = 7; |
8254 | bool do_set = false; | |
0081b162 | 8255 | int rc; |
75700e53 HMH |
8256 | |
8257 | /* DSDT *always* updates status on resume */ | |
8258 | tp_features.fan_ctrl_status_undef = 0; | |
8259 | ||
75700e53 | 8260 | if (!fan_control_allowed || |
0081b162 | 8261 | !fan_control_resume_level || |
75700e53 HMH |
8262 | (fan_get_status_safe(¤t_level) < 0)) |
8263 | return; | |
8264 | ||
8265 | switch (fan_control_access_mode) { | |
8266 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8267 | /* never decrease fan level */ |
8268 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8269 | break; |
8270 | case TPACPI_FAN_WR_ACPI_FANS: | |
8271 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8272 | /* never decrease fan level, scale is: |
8273 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8274 | * | |
8275 | * We expect the firmware to set either 7 or AUTO, but we | |
8276 | * handle FULLSPEED out of paranoia. | |
8277 | * | |
8278 | * So, we can safely only restore FULLSPEED or 7, anything | |
8279 | * else could slow the fan. Restoring AUTO is useless, at | |
8280 | * best that's exactly what the DSDT already set (it is the | |
8281 | * slower it uses). | |
8282 | * | |
8283 | * Always keep in mind that the DSDT *will* have set the | |
8284 | * fans to what the vendor supposes is the best level. We | |
8285 | * muck with it only to speed the fan up. | |
8286 | */ | |
8287 | if (fan_control_resume_level != 7 && | |
8288 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8289 | return; | |
8290 | else | |
8291 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8292 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8293 | break; |
8294 | default: | |
8295 | return; | |
8296 | } | |
8297 | if (do_set) { | |
0978e012 JP |
8298 | pr_notice("restoring fan level to 0x%02x\n", |
8299 | fan_control_resume_level); | |
0081b162 HMH |
8300 | rc = fan_set_level_safe(fan_control_resume_level); |
8301 | if (rc < 0) | |
0978e012 | 8302 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8303 | } |
8304 | } | |
8305 | ||
887965e6 | 8306 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8307 | { |
56b6aeb0 HMH |
8308 | int rc; |
8309 | u8 status; | |
8310 | unsigned int speed = 0; | |
8311 | ||
8312 | switch (fan_status_access_mode) { | |
efa27145 | 8313 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8314 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8315 | rc = fan_get_status_safe(&status); |
8316 | if (rc < 0) | |
56b6aeb0 HMH |
8317 | return rc; |
8318 | ||
887965e6 | 8319 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8320 | "level:\t\t%d\n", |
8321 | (status != 0) ? "enabled" : "disabled", status); | |
8322 | break; | |
8323 | ||
efa27145 | 8324 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8325 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8326 | rc = fan_get_status_safe(&status); |
8327 | if (rc < 0) | |
56b6aeb0 HMH |
8328 | return rc; |
8329 | ||
887965e6 | 8330 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8331 | (status != 0) ? "enabled" : "disabled"); |
8332 | ||
35ff8b9f HMH |
8333 | rc = fan_get_speed(&speed); |
8334 | if (rc < 0) | |
56b6aeb0 HMH |
8335 | return rc; |
8336 | ||
887965e6 | 8337 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8338 | |
efa27145 | 8339 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8340 | /* Disengaged mode takes precedence */ |
887965e6 | 8341 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8342 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8343 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8344 | else |
887965e6 | 8345 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8346 | break; |
8347 | ||
efa27145 | 8348 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8349 | default: |
887965e6 | 8350 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8351 | } |
8352 | ||
efa27145 | 8353 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8354 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8355 | |
8356 | switch (fan_control_access_mode) { | |
efa27145 | 8357 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8358 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8359 | break; |
8360 | ||
8361 | default: | |
887965e6 | 8362 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8363 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8364 | break; |
8365 | } | |
8366 | } | |
18ad7996 | 8367 | |
efa27145 | 8368 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8369 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8370 | "commands:\twatchdog <timeout> (<timeout> " |
8371 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8372 | |
efa27145 | 8373 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8374 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8375 | " (<speed> is 0-65535)\n"); |
8376 | ||
887965e6 | 8377 | return 0; |
78f81cc4 BD |
8378 | } |
8379 | ||
18ad7996 HMH |
8380 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8381 | { | |
8382 | int level; | |
8383 | ||
a12095c2 | 8384 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8385 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8386 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8387 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8388 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8389 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8390 | return 0; |
8391 | ||
35ff8b9f HMH |
8392 | *rc = fan_set_level_safe(level); |
8393 | if (*rc == -ENXIO) | |
0978e012 JP |
8394 | pr_err("level command accepted for unsupported access mode %d\n", |
8395 | fan_control_access_mode); | |
74a60c0f HMH |
8396 | else if (!*rc) |
8397 | tpacpi_disclose_usertask("procfs fan", | |
8398 | "set level to %d\n", level); | |
18ad7996 HMH |
8399 | |
8400 | return 1; | |
8401 | } | |
8402 | ||
8403 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8404 | { | |
8405 | if (strlencmp(cmd, "enable") != 0) | |
8406 | return 0; | |
8407 | ||
35ff8b9f HMH |
8408 | *rc = fan_set_enable(); |
8409 | if (*rc == -ENXIO) | |
0978e012 JP |
8410 | pr_err("enable command accepted for unsupported access mode %d\n", |
8411 | fan_control_access_mode); | |
74a60c0f HMH |
8412 | else if (!*rc) |
8413 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8414 | |
8415 | return 1; | |
8416 | } | |
8417 | ||
8418 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8419 | { | |
8420 | if (strlencmp(cmd, "disable") != 0) | |
8421 | return 0; | |
8422 | ||
35ff8b9f HMH |
8423 | *rc = fan_set_disable(); |
8424 | if (*rc == -ENXIO) | |
0978e012 JP |
8425 | pr_err("disable command accepted for unsupported access mode %d\n", |
8426 | fan_control_access_mode); | |
74a60c0f HMH |
8427 | else if (!*rc) |
8428 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8429 | |
8430 | return 1; | |
8431 | } | |
8432 | ||
8433 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8434 | { | |
8435 | int speed; | |
8436 | ||
a8b7a662 HMH |
8437 | /* TODO: |
8438 | * Support speed <low> <medium> <high> ? */ | |
8439 | ||
18ad7996 HMH |
8440 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8441 | return 0; | |
8442 | ||
35ff8b9f HMH |
8443 | *rc = fan_set_speed(speed); |
8444 | if (*rc == -ENXIO) | |
0978e012 JP |
8445 | pr_err("speed command accepted for unsupported access mode %d\n", |
8446 | fan_control_access_mode); | |
74a60c0f HMH |
8447 | else if (!*rc) |
8448 | tpacpi_disclose_usertask("procfs fan", | |
8449 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8450 | |
8451 | return 1; | |
8452 | } | |
8453 | ||
16663a87 HMH |
8454 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8455 | { | |
8456 | int interval; | |
8457 | ||
8458 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8459 | return 0; | |
8460 | ||
8461 | if (interval < 0 || interval > 120) | |
8462 | *rc = -EINVAL; | |
74a60c0f | 8463 | else { |
16663a87 | 8464 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8465 | tpacpi_disclose_usertask("procfs fan", |
8466 | "set watchdog timer to %d\n", | |
8467 | interval); | |
8468 | } | |
16663a87 HMH |
8469 | |
8470 | return 1; | |
8471 | } | |
8472 | ||
18ad7996 HMH |
8473 | static int fan_write(char *buf) |
8474 | { | |
8475 | char *cmd; | |
8476 | int rc = 0; | |
8477 | ||
8478 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8479 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8480 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8481 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8482 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8483 | fan_write_cmd_disable(cmd, &rc) || |
8484 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8485 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8486 | fan_write_cmd_speed(cmd, &rc)) |
8487 | ) | |
8488 | rc = -EINVAL; | |
16663a87 HMH |
8489 | else if (!rc) |
8490 | fan_watchdog_reset(); | |
18ad7996 HMH |
8491 | } |
8492 | ||
8493 | return rc; | |
8494 | } | |
8495 | ||
a5763f22 HMH |
8496 | static struct ibm_struct fan_driver_data = { |
8497 | .name = "fan", | |
8498 | .read = fan_read, | |
8499 | .write = fan_write, | |
8500 | .exit = fan_exit, | |
75700e53 HMH |
8501 | .suspend = fan_suspend, |
8502 | .resume = fan_resume, | |
a5763f22 HMH |
8503 | }; |
8504 | ||
420f9739 DH |
8505 | /************************************************************************* |
8506 | * Mute LED subdriver | |
8507 | */ | |
8508 | ||
8509 | ||
8510 | struct tp_led_table { | |
8511 | acpi_string name; | |
8512 | int on_value; | |
8513 | int off_value; | |
8514 | int state; | |
8515 | }; | |
8516 | ||
8517 | static struct tp_led_table led_tables[] = { | |
8518 | [TPACPI_LED_MUTE] = { | |
8519 | .name = "SSMS", | |
8520 | .on_value = 1, | |
8521 | .off_value = 0, | |
8522 | }, | |
8523 | [TPACPI_LED_MICMUTE] = { | |
8524 | .name = "MMTS", | |
8525 | .on_value = 2, | |
8526 | .off_value = 0, | |
8527 | }, | |
8528 | }; | |
8529 | ||
8530 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
8531 | { | |
8532 | acpi_handle temp; | |
8533 | int output; | |
8534 | ||
8535 | if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) { | |
8536 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); | |
8537 | return -EIO; | |
8538 | } | |
8539 | ||
8540 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
8541 | state ? t->on_value : t->off_value)) | |
8542 | return -EIO; | |
8543 | ||
8544 | t->state = state; | |
8545 | return state; | |
8546 | } | |
8547 | ||
8548 | int tpacpi_led_set(int whichled, bool on) | |
8549 | { | |
8550 | struct tp_led_table *t; | |
8551 | ||
8552 | if (whichled < 0 || whichled >= TPACPI_LED_MAX) | |
8553 | return -EINVAL; | |
8554 | ||
8555 | t = &led_tables[whichled]; | |
8556 | if (t->state < 0 || t->state == on) | |
8557 | return t->state; | |
8558 | return mute_led_on_off(t, on); | |
8559 | } | |
8560 | EXPORT_SYMBOL_GPL(tpacpi_led_set); | |
8561 | ||
8562 | static int mute_led_init(struct ibm_init_struct *iibm) | |
8563 | { | |
8564 | acpi_handle temp; | |
8565 | int i; | |
8566 | ||
8567 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
8568 | struct tp_led_table *t = &led_tables[i]; | |
8569 | if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) | |
8570 | mute_led_on_off(t, false); | |
8571 | else | |
8572 | t->state = -ENODEV; | |
8573 | } | |
8574 | return 0; | |
8575 | } | |
8576 | ||
8577 | static void mute_led_exit(void) | |
8578 | { | |
8579 | int i; | |
8580 | ||
8581 | for (i = 0; i < TPACPI_LED_MAX; i++) | |
8582 | tpacpi_led_set(i, false); | |
8583 | } | |
8584 | ||
119f4498 TI |
8585 | static void mute_led_resume(void) |
8586 | { | |
8587 | int i; | |
8588 | ||
8589 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
8590 | struct tp_led_table *t = &led_tables[i]; | |
8591 | if (t->state >= 0) | |
8592 | mute_led_on_off(t, t->state); | |
8593 | } | |
8594 | } | |
8595 | ||
420f9739 DH |
8596 | static struct ibm_struct mute_led_driver_data = { |
8597 | .name = "mute_led", | |
8598 | .exit = mute_led_exit, | |
119f4498 | 8599 | .resume = mute_led_resume, |
420f9739 DH |
8600 | }; |
8601 | ||
56b6aeb0 HMH |
8602 | /**************************************************************************** |
8603 | **************************************************************************** | |
8604 | * | |
8605 | * Infrastructure | |
8606 | * | |
8607 | **************************************************************************** | |
8608 | ****************************************************************************/ | |
8609 | ||
8b468c0c HMH |
8610 | /* |
8611 | * HKEY event callout for other subdrivers go here | |
8612 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8613 | */ | |
8614 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8615 | { | |
347a2686 HMH |
8616 | if (ibm_backlight_device) { |
8617 | switch (hkey_event) { | |
8618 | case TP_HKEY_EV_BRGHT_UP: | |
8619 | case TP_HKEY_EV_BRGHT_DOWN: | |
8620 | tpacpi_brightness_notify_change(); | |
8621 | } | |
8622 | } | |
0d204c34 HMH |
8623 | if (alsa_card) { |
8624 | switch (hkey_event) { | |
8625 | case TP_HKEY_EV_VOL_UP: | |
8626 | case TP_HKEY_EV_VOL_DOWN: | |
8627 | case TP_HKEY_EV_VOL_MUTE: | |
8628 | volume_alsa_notify_change(); | |
8629 | } | |
8630 | } | |
8b468c0c HMH |
8631 | } |
8632 | ||
8b468c0c HMH |
8633 | static void hotkey_driver_event(const unsigned int scancode) |
8634 | { | |
67bcae6e | 8635 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8636 | } |
8637 | ||
7fd40029 HMH |
8638 | /* sysfs name ---------------------------------------------------------- */ |
8639 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8640 | struct device_attribute *attr, | |
8641 | char *buf) | |
8642 | { | |
e0c7dfe7 | 8643 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8644 | } |
8645 | ||
8646 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
8647 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
8648 | ||
8649 | /* --------------------------------------------------------------------- */ | |
8650 | ||
56b6aeb0 | 8651 | /* /proc support */ |
94954cc6 | 8652 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8653 | |
56b6aeb0 HMH |
8654 | /* |
8655 | * Module and infrastructure proble, init and exit handling | |
8656 | */ | |
1da177e4 | 8657 | |
90ab5ee9 | 8658 | static bool force_load; |
b21a15f6 | 8659 | |
fe08bc4b | 8660 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8661 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8662 | { |
a5763f22 | 8663 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8664 | |
a5763f22 | 8665 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8666 | } |
8667 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8668 | ||
b21a15f6 HMH |
8669 | static void ibm_exit(struct ibm_struct *ibm) |
8670 | { | |
8671 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8672 | ||
8673 | list_del_init(&ibm->all_drivers); | |
8674 | ||
8675 | if (ibm->flags.acpi_notify_installed) { | |
8676 | dbg_printk(TPACPI_DBG_EXIT, | |
8677 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8678 | BUG_ON(!ibm->acpi); | |
8679 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8680 | ibm->acpi->type, | |
8681 | dispatch_acpi_notify); | |
8682 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
8683 | } |
8684 | ||
8685 | if (ibm->flags.proc_created) { | |
8686 | dbg_printk(TPACPI_DBG_EXIT, | |
8687 | "%s: remove_proc_entry\n", ibm->name); | |
8688 | remove_proc_entry(ibm->name, proc_dir); | |
8689 | ibm->flags.proc_created = 0; | |
8690 | } | |
8691 | ||
8692 | if (ibm->flags.acpi_driver_registered) { | |
8693 | dbg_printk(TPACPI_DBG_EXIT, | |
8694 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8695 | BUG_ON(!ibm->acpi); | |
8696 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8697 | kfree(ibm->acpi->driver); | |
8698 | ibm->acpi->driver = NULL; | |
8699 | ibm->flags.acpi_driver_registered = 0; | |
8700 | } | |
8701 | ||
8702 | if (ibm->flags.init_called && ibm->exit) { | |
8703 | ibm->exit(); | |
8704 | ibm->flags.init_called = 0; | |
8705 | } | |
8706 | ||
8707 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8708 | } | |
f74a27d4 | 8709 | |
a5763f22 | 8710 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8711 | { |
8712 | int ret; | |
a5763f22 | 8713 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8714 | struct proc_dir_entry *entry; |
8715 | ||
a5763f22 HMH |
8716 | BUG_ON(ibm == NULL); |
8717 | ||
8718 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8719 | ||
92641177 | 8720 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8721 | return 0; |
8722 | ||
fe08bc4b HMH |
8723 | dbg_printk(TPACPI_DBG_INIT, |
8724 | "probing for %s\n", ibm->name); | |
8725 | ||
a5763f22 HMH |
8726 | if (iibm->init) { |
8727 | ret = iibm->init(iibm); | |
5fba344c HMH |
8728 | if (ret > 0) |
8729 | return 0; /* probe failed */ | |
8730 | if (ret) | |
1da177e4 | 8731 | return ret; |
a5763f22 | 8732 | |
92641177 | 8733 | ibm->flags.init_called = 1; |
1da177e4 LT |
8734 | } |
8735 | ||
8d376cd6 HMH |
8736 | if (ibm->acpi) { |
8737 | if (ibm->acpi->hid) { | |
8738 | ret = register_tpacpi_subdriver(ibm); | |
8739 | if (ret) | |
8740 | goto err_out; | |
8741 | } | |
5fba344c | 8742 | |
8d376cd6 HMH |
8743 | if (ibm->acpi->notify) { |
8744 | ret = setup_acpi_notify(ibm); | |
8745 | if (ret == -ENODEV) { | |
0978e012 JP |
8746 | pr_notice("disabling subdriver %s\n", |
8747 | ibm->name); | |
8d376cd6 HMH |
8748 | ret = 0; |
8749 | goto err_out; | |
8750 | } | |
8751 | if (ret < 0) | |
8752 | goto err_out; | |
5fba344c | 8753 | } |
5fba344c HMH |
8754 | } |
8755 | ||
fe08bc4b HMH |
8756 | dbg_printk(TPACPI_DBG_INIT, |
8757 | "%s installed\n", ibm->name); | |
8758 | ||
78f81cc4 | 8759 | if (ibm->read) { |
d161a13f | 8760 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 8761 | |
b525c06c HMH |
8762 | if (!mode) |
8763 | mode = S_IRUGO; | |
887965e6 AD |
8764 | if (ibm->write) |
8765 | mode |= S_IWUSR; | |
8766 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
8767 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 8768 | if (!entry) { |
0978e012 | 8769 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
8770 | ret = -ENODEV; |
8771 | goto err_out; | |
78f81cc4 | 8772 | } |
92641177 | 8773 | ibm->flags.proc_created = 1; |
78f81cc4 | 8774 | } |
1da177e4 | 8775 | |
a5763f22 HMH |
8776 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8777 | ||
1da177e4 | 8778 | return 0; |
5fba344c HMH |
8779 | |
8780 | err_out: | |
fe08bc4b HMH |
8781 | dbg_printk(TPACPI_DBG_INIT, |
8782 | "%s: at error exit path with result %d\n", | |
8783 | ibm->name, ret); | |
8784 | ||
5fba344c HMH |
8785 | ibm_exit(ibm); |
8786 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
8787 | } |
8788 | ||
56b6aeb0 HMH |
8789 | /* Probing */ |
8790 | ||
050df107 HMH |
8791 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8792 | { | |
8793 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
8794 | } | |
8795 | ||
8796 | /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ | |
8797 | static bool __pure __init tpacpi_is_valid_fw_id(const char* const s, | |
8798 | const char t) | |
8799 | { | |
8800 | return s && strlen(s) >= 8 && | |
8801 | tpacpi_is_fw_digit(s[0]) && | |
8802 | tpacpi_is_fw_digit(s[1]) && | |
16a3d9f5 MI |
8803 | s[2] == t && |
8804 | (s[3] == 'T' || s[3] == 'N') && | |
050df107 | 8805 | tpacpi_is_fw_digit(s[4]) && |
b569ab39 | 8806 | tpacpi_is_fw_digit(s[5]); |
050df107 HMH |
8807 | } |
8808 | ||
bf20e740 HMH |
8809 | /* returns 0 - probe ok, or < 0 - probe error. |
8810 | * Probe ok doesn't mean thinkpad found. | |
8811 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
8812 | static int __must_check __init get_thinkpad_model_data( | |
8813 | struct thinkpad_id_data *tp) | |
1da177e4 | 8814 | { |
1855256c | 8815 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 8816 | char ec_fw_string[18]; |
bf20e740 | 8817 | char const *s; |
1da177e4 | 8818 | |
d5a2f2f1 | 8819 | if (!tp) |
bf20e740 | 8820 | return -EINVAL; |
d5a2f2f1 HMH |
8821 | |
8822 | memset(tp, 0, sizeof(*tp)); | |
8823 | ||
8824 | if (dmi_name_in_vendors("IBM")) | |
8825 | tp->vendor = PCI_VENDOR_ID_IBM; | |
8826 | else if (dmi_name_in_vendors("LENOVO")) | |
8827 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
8828 | else | |
bf20e740 | 8829 | return 0; |
d5a2f2f1 | 8830 | |
bf20e740 HMH |
8831 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
8832 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
8833 | if (s && !tp->bios_version_str) | |
8834 | return -ENOMEM; | |
050df107 HMH |
8835 | |
8836 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
16a3d9f5 MI |
8837 | if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') || |
8838 | tpacpi_is_valid_fw_id(tp->bios_version_str, 'C'))) | |
bf20e740 | 8839 | return 0; |
050df107 | 8840 | |
d5a2f2f1 HMH |
8841 | tp->bios_model = tp->bios_version_str[0] |
8842 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
8843 | tp->bios_release = (tp->bios_version_str[4] << 8) |
8844 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 8845 | |
56b6aeb0 HMH |
8846 | /* |
8847 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
8848 | * X32 or newer, all Z series; Some models must have an | |
8849 | * up-to-date BIOS or they will not be detected. | |
8850 | * | |
8851 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8852 | */ | |
8853 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
8854 | if (sscanf(dev->name, | |
8855 | "IBM ThinkPad Embedded Controller -[%17c", | |
8856 | ec_fw_string) == 1) { | |
8857 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
8858 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
8859 | |
8860 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
8861 | if (!tp->ec_version_str) |
8862 | return -ENOMEM; | |
050df107 HMH |
8863 | |
8864 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
8865 | tp->ec_model = ec_fw_string[0] | |
8866 | | (ec_fw_string[1] << 8); | |
8867 | tp->ec_release = (ec_fw_string[4] << 8) | |
8868 | | ec_fw_string[5]; | |
8869 | } else { | |
0978e012 JP |
8870 | pr_notice("ThinkPad firmware release %s " |
8871 | "doesn't match the known patterns\n", | |
8872 | ec_fw_string); | |
8873 | pr_notice("please report this to %s\n", | |
8874 | TPACPI_MAIL); | |
050df107 | 8875 | } |
d5a2f2f1 | 8876 | break; |
78f81cc4 | 8877 | } |
1da177e4 | 8878 | } |
d5a2f2f1 | 8879 | |
bf20e740 | 8880 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
23b05316 | 8881 | if (s && !(strnicmp(s, "ThinkPad", 8) && strnicmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
8882 | tp->model_str = kstrdup(s, GFP_KERNEL); |
8883 | if (!tp->model_str) | |
8884 | return -ENOMEM; | |
a4f46bb9 MI |
8885 | } else { |
8886 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
8887 | if (s && !(strnicmp(s, "Lenovo", 6))) { | |
8888 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
8889 | if (!tp->model_str) | |
8890 | return -ENOMEM; | |
8891 | } | |
d5a2f2f1 | 8892 | } |
8c74adbc | 8893 | |
bf20e740 HMH |
8894 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
8895 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
8896 | if (s && !tp->nummodel_str) | |
8897 | return -ENOMEM; | |
8898 | ||
8899 | return 0; | |
1da177e4 LT |
8900 | } |
8901 | ||
5fba344c HMH |
8902 | static int __init probe_for_thinkpad(void) |
8903 | { | |
8904 | int is_thinkpad; | |
8905 | ||
8906 | if (acpi_disabled) | |
8907 | return -ENODEV; | |
8908 | ||
e28393c0 HMH |
8909 | /* It would be dangerous to run the driver in this case */ |
8910 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
8911 | return -ENODEV; | |
8912 | ||
5fba344c HMH |
8913 | /* |
8914 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 8915 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 8916 | */ |
e675abaf HMH |
8917 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
8918 | (thinkpad_id.ec_model != 0) || | |
8919 | tpacpi_is_fw_known(); | |
5fba344c | 8920 | |
437e470c HMH |
8921 | /* The EC handler is required */ |
8922 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
8923 | if (!ec_handle) { |
8924 | if (is_thinkpad) | |
0978e012 | 8925 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
8926 | return -ENODEV; |
8927 | } | |
8928 | ||
0dcef77c HMH |
8929 | if (!is_thinkpad && !force_load) |
8930 | return -ENODEV; | |
8931 | ||
5fba344c HMH |
8932 | return 0; |
8933 | } | |
8934 | ||
7a43f788 HMH |
8935 | static void __init thinkpad_acpi_init_banner(void) |
8936 | { | |
0978e012 JP |
8937 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
8938 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 8939 | |
0978e012 | 8940 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
8941 | (thinkpad_id.bios_version_str) ? |
8942 | thinkpad_id.bios_version_str : "unknown", | |
8943 | (thinkpad_id.ec_version_str) ? | |
8944 | thinkpad_id.ec_version_str : "unknown"); | |
8945 | ||
8946 | BUG_ON(!thinkpad_id.vendor); | |
8947 | ||
8948 | if (thinkpad_id.model_str) | |
0978e012 | 8949 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
8950 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
8951 | "IBM" : ((thinkpad_id.vendor == | |
8952 | PCI_VENDOR_ID_LENOVO) ? | |
8953 | "Lenovo" : "Unknown vendor"), | |
8954 | thinkpad_id.model_str, | |
8955 | (thinkpad_id.nummodel_str) ? | |
8956 | thinkpad_id.nummodel_str : "unknown"); | |
8957 | } | |
5fba344c | 8958 | |
56b6aeb0 | 8959 | /* Module init, exit, parameters */ |
1da177e4 | 8960 | |
a5763f22 HMH |
8961 | static struct ibm_init_struct ibms_init[] __initdata = { |
8962 | { | |
a5763f22 HMH |
8963 | .data = &thinkpad_acpi_driver_data, |
8964 | }, | |
8965 | { | |
8966 | .init = hotkey_init, | |
8967 | .data = &hotkey_driver_data, | |
8968 | }, | |
8969 | { | |
8970 | .init = bluetooth_init, | |
8971 | .data = &bluetooth_driver_data, | |
8972 | }, | |
8973 | { | |
8974 | .init = wan_init, | |
8975 | .data = &wan_driver_data, | |
8976 | }, | |
0045c0aa HMH |
8977 | { |
8978 | .init = uwb_init, | |
8979 | .data = &uwb_driver_data, | |
8980 | }, | |
d7c1d17d | 8981 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
8982 | { |
8983 | .init = video_init, | |
b525c06c | 8984 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
8985 | .data = &video_driver_data, |
8986 | }, | |
d7c1d17d | 8987 | #endif |
a5763f22 HMH |
8988 | { |
8989 | .init = light_init, | |
8990 | .data = &light_driver_data, | |
8991 | }, | |
a5763f22 HMH |
8992 | { |
8993 | .init = cmos_init, | |
8994 | .data = &cmos_driver_data, | |
8995 | }, | |
8996 | { | |
8997 | .init = led_init, | |
8998 | .data = &led_driver_data, | |
8999 | }, | |
9000 | { | |
9001 | .init = beep_init, | |
9002 | .data = &beep_driver_data, | |
9003 | }, | |
9004 | { | |
9005 | .init = thermal_init, | |
9006 | .data = &thermal_driver_data, | |
9007 | }, | |
a5763f22 HMH |
9008 | { |
9009 | .init = brightness_init, | |
9010 | .data = &brightness_driver_data, | |
9011 | }, | |
9012 | { | |
329e4e18 | 9013 | .init = volume_init, |
a5763f22 HMH |
9014 | .data = &volume_driver_data, |
9015 | }, | |
9016 | { | |
9017 | .init = fan_init, | |
9018 | .data = &fan_driver_data, | |
9019 | }, | |
420f9739 DH |
9020 | { |
9021 | .init = mute_led_init, | |
9022 | .data = &mute_led_driver_data, | |
9023 | }, | |
a5763f22 HMH |
9024 | }; |
9025 | ||
3945ac36 | 9026 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
9027 | { |
9028 | unsigned int i; | |
a5763f22 | 9029 | struct ibm_struct *ibm; |
1da177e4 | 9030 | |
59f91ff1 HMH |
9031 | if (!kp || !kp->name || !val) |
9032 | return -EINVAL; | |
9033 | ||
a5763f22 HMH |
9034 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9035 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
9036 | WARN_ON(ibm == NULL); |
9037 | ||
9038 | if (!ibm || !ibm->name) | |
9039 | continue; | |
a5763f22 HMH |
9040 | |
9041 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
9042 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 9043 | return -ENOSPC; |
a5763f22 HMH |
9044 | strcpy(ibms_init[i].param, val); |
9045 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
9046 | return 0; |
9047 | } | |
a5763f22 | 9048 | } |
1da177e4 | 9049 | |
1da177e4 LT |
9050 | return -EINVAL; |
9051 | } | |
9052 | ||
b09c7225 | 9053 | module_param(experimental, int, 0444); |
f68080f8 | 9054 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 9055 | "Enables experimental features when non-zero"); |
56b6aeb0 | 9056 | |
132ce091 | 9057 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 9058 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 9059 | |
b09c7225 | 9060 | module_param(force_load, bool, 0444); |
f68080f8 | 9061 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
9062 | "Attempts to load the driver even on a " |
9063 | "mis-identified ThinkPad when true"); | |
0dcef77c | 9064 | |
b09c7225 | 9065 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 9066 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 9067 | "Enables setting fan parameters features when true"); |
ecf2a80a | 9068 | |
b09c7225 | 9069 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 9070 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 9071 | "Selects brightness control strategy: " |
0e501834 | 9072 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 9073 | |
b09c7225 | 9074 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 9075 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 9076 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 9077 | |
ff850c33 | 9078 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
9079 | module_param_named(volume_mode, volume_mode, uint, 0444); |
9080 | MODULE_PARM_DESC(volume_mode, | |
9081 | "Selects volume control strategy: " | |
9082 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
9083 | ||
a112ceee HMH |
9084 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
9085 | MODULE_PARM_DESC(volume_capabilities, | |
9086 | "Selects the mixer capabilites: " | |
9087 | "0=auto, 1=volume and mute, 2=mute only"); | |
9088 | ||
c7ac6291 HMH |
9089 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
9090 | MODULE_PARM_DESC(volume_control, | |
9091 | "Enables software override for the console audio " | |
9092 | "control when true"); | |
9093 | ||
0d204c34 HMH |
9094 | /* ALSA module API parameters */ |
9095 | module_param_named(index, alsa_index, int, 0444); | |
9096 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
9097 | module_param_named(id, alsa_id, charp, 0444); | |
9098 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
9099 | module_param_named(enable, alsa_enable, bool, 0444); | |
9100 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 9101 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 9102 | |
e0c7dfe7 | 9103 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 9104 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 9105 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 9106 | "at module load, see documentation") |
1da177e4 | 9107 | |
e0c7dfe7 HMH |
9108 | TPACPI_PARAM(hotkey); |
9109 | TPACPI_PARAM(bluetooth); | |
9110 | TPACPI_PARAM(video); | |
9111 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
9112 | TPACPI_PARAM(cmos); |
9113 | TPACPI_PARAM(led); | |
9114 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
9115 | TPACPI_PARAM(brightness); |
9116 | TPACPI_PARAM(volume); | |
9117 | TPACPI_PARAM(fan); | |
78f81cc4 | 9118 | |
a73f3091 | 9119 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 9120 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
9121 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
9122 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
9123 | MODULE_PARM_DESC(wlsw_state, | |
9124 | "Initial state of the emulated WLSW switch"); | |
9125 | ||
b09c7225 | 9126 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
9127 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
9128 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
9129 | MODULE_PARM_DESC(bluetooth_state, | |
9130 | "Initial state of the emulated bluetooth switch"); | |
9131 | ||
b09c7225 | 9132 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
9133 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
9134 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
9135 | MODULE_PARM_DESC(wwan_state, | |
9136 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 9137 | |
b09c7225 | 9138 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
9139 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
9140 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
9141 | MODULE_PARM_DESC(uwb_state, | |
9142 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
9143 | #endif |
9144 | ||
b21a15f6 HMH |
9145 | static void thinkpad_acpi_module_exit(void) |
9146 | { | |
9147 | struct ibm_struct *ibm, *itmp; | |
9148 | ||
9149 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
9150 | ||
9151 | list_for_each_entry_safe_reverse(ibm, itmp, | |
9152 | &tpacpi_all_drivers, | |
9153 | all_drivers) { | |
9154 | ibm_exit(ibm); | |
9155 | } | |
9156 | ||
9157 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
9158 | ||
9159 | if (tpacpi_inputdev) { | |
9160 | if (tp_features.input_device_registered) | |
9161 | input_unregister_device(tpacpi_inputdev); | |
9162 | else | |
9163 | input_free_device(tpacpi_inputdev); | |
00d39597 | 9164 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
9165 | } |
9166 | ||
9167 | if (tpacpi_hwmon) | |
9168 | hwmon_device_unregister(tpacpi_hwmon); | |
9169 | ||
9170 | if (tp_features.sensors_pdev_attrs_registered) | |
9171 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
9172 | &dev_attr_thinkpad_acpi_pdev_name); | |
9173 | if (tpacpi_sensors_pdev) | |
9174 | platform_device_unregister(tpacpi_sensors_pdev); | |
9175 | if (tpacpi_pdev) | |
9176 | platform_device_unregister(tpacpi_pdev); | |
9177 | ||
9178 | if (tp_features.sensors_pdrv_attrs_registered) | |
9179 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
9180 | if (tp_features.platform_drv_attrs_registered) | |
9181 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
9182 | ||
9183 | if (tp_features.sensors_pdrv_registered) | |
9184 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
9185 | ||
9186 | if (tp_features.platform_drv_registered) | |
9187 | platform_driver_unregister(&tpacpi_pdriver); | |
9188 | ||
9189 | if (proc_dir) | |
e0c7dfe7 | 9190 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9191 | |
e0e3c061 HMH |
9192 | if (tpacpi_wq) |
9193 | destroy_workqueue(tpacpi_wq); | |
9194 | ||
b21a15f6 HMH |
9195 | kfree(thinkpad_id.bios_version_str); |
9196 | kfree(thinkpad_id.ec_version_str); | |
9197 | kfree(thinkpad_id.model_str); | |
d2be15bd | 9198 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
9199 | } |
9200 | ||
f74a27d4 | 9201 | |
1def7115 | 9202 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9203 | { |
9204 | int ret, i; | |
9205 | ||
8fef502e HMH |
9206 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9207 | ||
54ae1501 | 9208 | /* Driver-level probe */ |
d5a2f2f1 | 9209 | |
bf20e740 HMH |
9210 | ret = get_thinkpad_model_data(&thinkpad_id); |
9211 | if (ret) { | |
0978e012 | 9212 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
9213 | thinkpad_acpi_module_exit(); |
9214 | return ret; | |
9215 | } | |
5fba344c | 9216 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9217 | if (ret) { |
9218 | thinkpad_acpi_module_exit(); | |
5fba344c | 9219 | return ret; |
d5a2f2f1 | 9220 | } |
1da177e4 | 9221 | |
54ae1501 | 9222 | /* Driver initialization */ |
d5a2f2f1 | 9223 | |
7a43f788 HMH |
9224 | thinkpad_acpi_init_banner(); |
9225 | tpacpi_check_outdated_fw(); | |
9226 | ||
e0c7dfe7 HMH |
9227 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9228 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9229 | |
e0e3c061 HMH |
9230 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9231 | if (!tpacpi_wq) { | |
9232 | thinkpad_acpi_module_exit(); | |
9233 | return -ENOMEM; | |
9234 | } | |
9235 | ||
e0c7dfe7 | 9236 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9237 | if (!proc_dir) { |
0978e012 | 9238 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 9239 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9240 | return -ENODEV; |
9241 | } | |
78f81cc4 | 9242 | |
54ae1501 HMH |
9243 | ret = platform_driver_register(&tpacpi_pdriver); |
9244 | if (ret) { | |
0978e012 | 9245 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
9246 | thinkpad_acpi_module_exit(); |
9247 | return ret; | |
9248 | } | |
ac36393d HMH |
9249 | tp_features.platform_drv_registered = 1; |
9250 | ||
7fd40029 HMH |
9251 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9252 | if (ret) { | |
0978e012 | 9253 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
9254 | thinkpad_acpi_module_exit(); |
9255 | return ret; | |
9256 | } | |
9257 | tp_features.sensors_pdrv_registered = 1; | |
9258 | ||
176750d6 | 9259 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9260 | if (!ret) { |
9261 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9262 | ret = tpacpi_create_driver_attributes( |
9263 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9264 | } |
176750d6 | 9265 | if (ret) { |
0978e012 | 9266 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
9267 | thinkpad_acpi_module_exit(); |
9268 | return ret; | |
9269 | } | |
2369cc94 | 9270 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9271 | |
54ae1501 HMH |
9272 | |
9273 | /* Device initialization */ | |
e0c7dfe7 | 9274 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9275 | NULL, 0); |
9276 | if (IS_ERR(tpacpi_pdev)) { | |
9277 | ret = PTR_ERR(tpacpi_pdev); | |
9278 | tpacpi_pdev = NULL; | |
0978e012 | 9279 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
9280 | thinkpad_acpi_module_exit(); |
9281 | return ret; | |
9282 | } | |
7fd40029 | 9283 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9284 | TPACPI_HWMON_DRVR_NAME, |
9285 | -1, NULL, 0); | |
7fd40029 HMH |
9286 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9287 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9288 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 9289 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
9290 | thinkpad_acpi_module_exit(); |
9291 | return ret; | |
9292 | } | |
9293 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
9294 | &dev_attr_thinkpad_acpi_pdev_name); | |
9295 | if (ret) { | |
0978e012 | 9296 | pr_err("unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9297 | thinkpad_acpi_module_exit(); |
9298 | return ret; | |
9299 | } | |
9300 | tp_features.sensors_pdev_attrs_registered = 1; | |
9301 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9302 | if (IS_ERR(tpacpi_hwmon)) { |
9303 | ret = PTR_ERR(tpacpi_hwmon); | |
9304 | tpacpi_hwmon = NULL; | |
0978e012 | 9305 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
9306 | thinkpad_acpi_module_exit(); |
9307 | return ret; | |
9308 | } | |
8523ed6f | 9309 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9310 | tpacpi_inputdev = input_allocate_device(); |
9311 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
9312 | thinkpad_acpi_module_exit(); |
9313 | return -ENOMEM; | |
9314 | } else { | |
9315 | /* Prepare input device, but don't register */ | |
9316 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9317 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9318 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9319 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9320 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9321 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9322 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9323 | } |
77775838 HMH |
9324 | |
9325 | /* Init subdriver dependencies */ | |
9326 | tpacpi_detect_brightness_capabilities(); | |
9327 | ||
9328 | /* Init subdrivers */ | |
a5763f22 HMH |
9329 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9330 | ret = ibm_init(&ibms_init[i]); | |
9331 | if (ret >= 0 && *ibms_init[i].param) | |
9332 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9333 | if (ret < 0) { |
1def7115 | 9334 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9335 | return ret; |
9336 | } | |
9337 | } | |
b589ea4c HMH |
9338 | |
9339 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9340 | ||
7f5d1cd6 HMH |
9341 | ret = input_register_device(tpacpi_inputdev); |
9342 | if (ret < 0) { | |
0978e012 | 9343 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
9344 | thinkpad_acpi_module_exit(); |
9345 | return ret; | |
9346 | } else { | |
9347 | tp_features.input_device_registered = 1; | |
9348 | } | |
1da177e4 LT |
9349 | |
9350 | return 0; | |
9351 | } | |
9352 | ||
95e57ab2 HMH |
9353 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9354 | ||
922fe097 HMH |
9355 | /* |
9356 | * This will autoload the driver in almost every ThinkPad | |
9357 | * in widespread use. | |
9358 | * | |
9359 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9360 | * the HKEY event interface. | |
9361 | */ | |
9362 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9363 | ||
f68080f8 HMH |
9364 | /* |
9365 | * DMI matching for module autoloading | |
9366 | * | |
9367 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9368 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9369 | * | |
9370 | * Only models listed in thinkwiki will be supported, so add yours | |
9371 | * if it is not there yet. | |
9372 | */ | |
9373 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9374 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9375 | |
f68080f8 HMH |
9376 | /* Ancient thinkpad BIOSes have to be identified by |
9377 | * BIOS type or model number, and there are far less | |
9378 | * BIOS types than model numbers... */ | |
922fe097 | 9379 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9380 | |
f68f53a2 HMH |
9381 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9382 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9383 | MODULE_DESCRIPTION(TPACPI_DESC); |
9384 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9385 | MODULE_LICENSE("GPL"); |
9386 | ||
1def7115 HMH |
9387 | module_init(thinkpad_acpi_module_init); |
9388 | module_exit(thinkpad_acpi_module_exit); |