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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 | ||
5d2eb14d | 24 | #define TPACPI_VERSION "0.24" |
a112ceee | 25 | #define TPACPI_SYSFS_VERSION 0x020700 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
73a94d86 | 57 | #include <linux/sched.h> |
0c78039f HMH |
58 | #include <linux/kthread.h> |
59 | #include <linux/freezer.h> | |
60 | #include <linux/delay.h> | |
5a0e3ad6 | 61 | #include <linux/slab.h> |
0c78039f HMH |
62 | |
63 | #include <linux/nvram.h> | |
64 | #include <linux/proc_fs.h> | |
887965e6 | 65 | #include <linux/seq_file.h> |
0c78039f HMH |
66 | #include <linux/sysfs.h> |
67 | #include <linux/backlight.h> | |
68 | #include <linux/fb.h> | |
69 | #include <linux/platform_device.h> | |
70 | #include <linux/hwmon.h> | |
71 | #include <linux/hwmon-sysfs.h> | |
72 | #include <linux/input.h> | |
4fa6811b | 73 | #include <linux/leds.h> |
0e74dc26 | 74 | #include <linux/rfkill.h> |
0c78039f HMH |
75 | #include <asm/uaccess.h> |
76 | ||
77 | #include <linux/dmi.h> | |
78 | #include <linux/jiffies.h> | |
79 | #include <linux/workqueue.h> | |
80 | ||
0d204c34 HMH |
81 | #include <sound/core.h> |
82 | #include <sound/control.h> | |
83 | #include <sound/initval.h> | |
84 | ||
0c78039f | 85 | #include <acpi/acpi_drivers.h> |
0c78039f HMH |
86 | |
87 | #include <linux/pci_ids.h> | |
88 | ||
0c78039f HMH |
89 | |
90 | /* ThinkPad CMOS commands */ | |
91 | #define TP_CMOS_VOLUME_DOWN 0 | |
92 | #define TP_CMOS_VOLUME_UP 1 | |
93 | #define TP_CMOS_VOLUME_MUTE 2 | |
94 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
95 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
96 | #define TP_CMOS_THINKLIGHT_ON 12 |
97 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
98 | |
99 | /* NVRAM Addresses */ | |
100 | enum tp_nvram_addr { | |
101 | TP_NVRAM_ADDR_HK2 = 0x57, | |
102 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
103 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
104 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
105 | TP_NVRAM_ADDR_MIXER = 0x60, | |
106 | }; | |
107 | ||
108 | /* NVRAM bit masks */ | |
109 | enum { | |
110 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
111 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
112 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
113 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
114 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
115 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
116 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
117 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
118 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
119 | TP_NVRAM_MASK_MUTE = 0x40, | |
120 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
121 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
122 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
123 | }; | |
124 | ||
5d756db9 HMH |
125 | /* Misc NVRAM-related */ |
126 | enum { | |
127 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
128 | }; | |
129 | ||
b21a15f6 | 130 | /* ACPI HIDs */ |
9fbdaeb4 MI |
131 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
132 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
437e470c | 133 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
134 | |
135 | /* Input IDs */ | |
136 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
137 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
138 | ||
153f8220 HMH |
139 | /* ACPI \WGSV commands */ |
140 | enum { | |
141 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
142 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
143 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
144 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
145 | }; | |
146 | ||
147 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
148 | enum { | |
149 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
150 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
151 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
152 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
153 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
154 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
155 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
156 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
157 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
158 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
159 | }; | |
b21a15f6 | 160 | |
67bcae6e HMH |
161 | /* HKEY events */ |
162 | enum tpacpi_hkey_event_t { | |
163 | /* Hotkey-related */ | |
164 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
165 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
166 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
167 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
168 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
169 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
170 | ||
171 | /* Reasons for waking up from S3/S4 */ | |
172 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
173 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
174 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
175 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
176 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
177 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
178 | ||
179 | /* Auto-sleep after eject request */ | |
180 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
181 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
182 | ||
183 | /* Misc bay events */ | |
184 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
185 | ||
186 | /* User-interface events */ | |
187 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
188 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
189 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
190 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
191 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ | |
192 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
193 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
194 | ||
195 | /* Thermal events */ | |
196 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
197 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
198 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
199 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
200 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
201 | ||
202 | /* Misc */ | |
203 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
204 | }; | |
205 | ||
b21a15f6 HMH |
206 | /**************************************************************************** |
207 | * Main driver | |
208 | */ | |
209 | ||
e0c7dfe7 HMH |
210 | #define TPACPI_NAME "thinkpad" |
211 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
212 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
213 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
214 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 215 | |
e0c7dfe7 HMH |
216 | #define TPACPI_PROC_DIR "ibm" |
217 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
218 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 219 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 220 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 221 | |
95e57ab2 | 222 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 223 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 224 | |
e0c7dfe7 | 225 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 226 | |
7ff8d62f | 227 | /* printk headers */ |
e0c7dfe7 | 228 | #define TPACPI_LOG TPACPI_FILE ": " |
7ff8d62f HMH |
229 | #define TPACPI_EMERG KERN_EMERG TPACPI_LOG |
230 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG | |
231 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG | |
232 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
233 | #define TPACPI_WARN KERN_WARNING TPACPI_LOG | |
234 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
235 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
236 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
237 | ||
238 | /* Debugging printk groups */ | |
0c78039f | 239 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 240 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
241 | #define TPACPI_DBG_INIT 0x0001 |
242 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 243 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 244 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 245 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 246 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 247 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 248 | |
35ff8b9f HMH |
249 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
250 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
251 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 252 | |
0c78039f HMH |
253 | |
254 | /**************************************************************************** | |
b21a15f6 | 255 | * Driver-wide structs and misc. variables |
0c78039f HMH |
256 | */ |
257 | ||
258 | struct ibm_struct; | |
259 | ||
260 | struct tp_acpi_drv_struct { | |
261 | const struct acpi_device_id *hid; | |
262 | struct acpi_driver *driver; | |
263 | ||
264 | void (*notify) (struct ibm_struct *, u32); | |
265 | acpi_handle *handle; | |
266 | u32 type; | |
267 | struct acpi_device *device; | |
268 | }; | |
269 | ||
270 | struct ibm_struct { | |
271 | char *name; | |
272 | ||
887965e6 | 273 | int (*read) (struct seq_file *); |
0c78039f HMH |
274 | int (*write) (char *); |
275 | void (*exit) (void); | |
276 | void (*resume) (void); | |
083f1760 | 277 | void (*suspend) (pm_message_t state); |
90d9d3c7 | 278 | void (*shutdown) (void); |
0c78039f HMH |
279 | |
280 | struct list_head all_drivers; | |
281 | ||
282 | struct tp_acpi_drv_struct *acpi; | |
283 | ||
284 | struct { | |
285 | u8 acpi_driver_registered:1; | |
286 | u8 acpi_notify_installed:1; | |
287 | u8 proc_created:1; | |
288 | u8 init_called:1; | |
289 | u8 experimental:1; | |
290 | } flags; | |
291 | }; | |
292 | ||
293 | struct ibm_init_struct { | |
294 | char param[32]; | |
295 | ||
296 | int (*init) (struct ibm_init_struct *); | |
b525c06c | 297 | mode_t base_procfs_mode; |
0c78039f HMH |
298 | struct ibm_struct *data; |
299 | }; | |
300 | ||
301 | static struct { | |
0c78039f HMH |
302 | u32 bluetooth:1; |
303 | u32 hotkey:1; | |
304 | u32 hotkey_mask:1; | |
305 | u32 hotkey_wlsw:1; | |
6c231bd5 | 306 | u32 hotkey_tablet:1; |
0c78039f HMH |
307 | u32 light:1; |
308 | u32 light_status:1; | |
b5972796 | 309 | u32 bright_acpimode:1; |
77775838 | 310 | u32 bright_unkfw:1; |
0c78039f | 311 | u32 wan:1; |
0045c0aa | 312 | u32 uwb:1; |
0c78039f | 313 | u32 fan_ctrl_status_undef:1; |
d7377247 | 314 | u32 second_fan:1; |
60201732 | 315 | u32 beep_needs_two_args:1; |
a112ceee | 316 | u32 mixer_no_level_control:1; |
0c78039f HMH |
317 | u32 input_device_registered:1; |
318 | u32 platform_drv_registered:1; | |
319 | u32 platform_drv_attrs_registered:1; | |
320 | u32 sensors_pdrv_registered:1; | |
321 | u32 sensors_pdrv_attrs_registered:1; | |
322 | u32 sensors_pdev_attrs_registered:1; | |
323 | u32 hotkey_poll_active:1; | |
324 | } tp_features; | |
325 | ||
92889022 HMH |
326 | static struct { |
327 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 328 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
329 | } tp_warned; |
330 | ||
0c78039f HMH |
331 | struct thinkpad_id_data { |
332 | unsigned int vendor; /* ThinkPad vendor: | |
333 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
334 | ||
335 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
336 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
337 | ||
050df107 | 338 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 339 | u16 ec_model; |
050df107 HMH |
340 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
341 | u16 ec_release; | |
0c78039f | 342 | |
8c74adbc HMH |
343 | char *model_str; /* ThinkPad T43 */ |
344 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 345 | }; |
0c78039f HMH |
346 | static struct thinkpad_id_data thinkpad_id; |
347 | ||
8fef502e HMH |
348 | static enum { |
349 | TPACPI_LIFE_INIT = 0, | |
350 | TPACPI_LIFE_RUNNING, | |
351 | TPACPI_LIFE_EXITING, | |
352 | } tpacpi_lifecycle; | |
353 | ||
b21a15f6 HMH |
354 | static int experimental; |
355 | static u32 dbg_level; | |
356 | ||
e0e3c061 HMH |
357 | static struct workqueue_struct *tpacpi_wq; |
358 | ||
75bd3bf2 HMH |
359 | enum led_status_t { |
360 | TPACPI_LED_OFF = 0, | |
361 | TPACPI_LED_ON, | |
362 | TPACPI_LED_BLINK, | |
363 | }; | |
364 | ||
4fa6811b HMH |
365 | /* Special LED class that can defer work */ |
366 | struct tpacpi_led_classdev { | |
367 | struct led_classdev led_classdev; | |
368 | struct work_struct work; | |
75bd3bf2 | 369 | enum led_status_t new_state; |
af116101 | 370 | unsigned int led; |
4fa6811b HMH |
371 | }; |
372 | ||
77775838 HMH |
373 | /* brightness level capabilities */ |
374 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
375 | ||
a73f3091 HMH |
376 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
377 | static int dbg_wlswemul; | |
378 | static int tpacpi_wlsw_emulstate; | |
379 | static int dbg_bluetoothemul; | |
380 | static int tpacpi_bluetooth_emulstate; | |
381 | static int dbg_wwanemul; | |
382 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
383 | static int dbg_uwbemul; |
384 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
385 | #endif |
386 | ||
387 | ||
3dcc2c3b HMH |
388 | /************************************************************************* |
389 | * Debugging helpers | |
390 | */ | |
391 | ||
392 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
393 | do { if (dbg_level & (a_dbg_level)) \ | |
394 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ | |
395 | } while (0) | |
396 | ||
397 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
398 | #define vdbg_printk dbg_printk | |
399 | static const char *str_supported(int is_supported); | |
400 | #else | |
401 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
402 | do { } while (0) | |
403 | #endif | |
404 | ||
73a94d86 HMH |
405 | static void tpacpi_log_usertask(const char * const what) |
406 | { | |
407 | printk(TPACPI_DEBUG "%s: access by process with PID %d\n", | |
408 | what, task_tgid_vnr(current)); | |
409 | } | |
410 | ||
411 | #define tpacpi_disclose_usertask(what, format, arg...) \ | |
412 | do { \ | |
413 | if (unlikely( \ | |
414 | (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
415 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
416 | printk(TPACPI_DEBUG "%s: PID %d: " format, \ | |
417 | what, task_tgid_vnr(current), ## arg); \ | |
418 | } \ | |
419 | } while (0) | |
3dcc2c3b | 420 | |
7d95a3d5 HMH |
421 | /* |
422 | * Quirk handling helpers | |
423 | * | |
424 | * ThinkPad IDs and versions seen in the field so far | |
425 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
426 | * | |
427 | * We use values well outside that range as specials. | |
428 | */ | |
429 | ||
430 | #define TPACPI_MATCH_ANY 0xffffU | |
431 | #define TPACPI_MATCH_UNKNOWN 0U | |
432 | ||
433 | /* TPID('1', 'Y') == 0x5931 */ | |
434 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
435 | ||
436 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
437 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
438 | .bios = TPID(__id1, __id2), \ | |
439 | .ec = TPACPI_MATCH_ANY, \ | |
440 | .quirks = (__quirk) } | |
441 | ||
442 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
443 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
444 | .bios = TPID(__id1, __id2), \ | |
445 | .ec = TPACPI_MATCH_ANY, \ | |
446 | .quirks = (__quirk) } | |
447 | ||
a112ceee HMH |
448 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
449 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
450 | .bios = TPACPI_MATCH_ANY, \ | |
451 | .ec = TPID(__id1, __id2), \ | |
452 | .quirks = (__quirk) } | |
453 | ||
7d95a3d5 HMH |
454 | struct tpacpi_quirk { |
455 | unsigned int vendor; | |
456 | u16 bios; | |
457 | u16 ec; | |
458 | unsigned long quirks; | |
459 | }; | |
460 | ||
461 | /** | |
462 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
463 | * @qlist: array of &struct tpacpi_quirk | |
464 | * @qlist_size: number of elements in @qlist | |
465 | * | |
466 | * Iterates over a quirks list until one is found that matches the | |
467 | * ThinkPad's vendor, BIOS and EC model. | |
468 | * | |
469 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
470 | * the matching &struct tpacpi_quirk entry. | |
471 | * | |
472 | * The match criteria is: vendor, ec and bios much match. | |
473 | */ | |
474 | static unsigned long __init tpacpi_check_quirks( | |
475 | const struct tpacpi_quirk *qlist, | |
476 | unsigned int qlist_size) | |
477 | { | |
478 | while (qlist_size) { | |
479 | if ((qlist->vendor == thinkpad_id.vendor || | |
480 | qlist->vendor == TPACPI_MATCH_ANY) && | |
481 | (qlist->bios == thinkpad_id.bios_model || | |
482 | qlist->bios == TPACPI_MATCH_ANY) && | |
483 | (qlist->ec == thinkpad_id.ec_model || | |
484 | qlist->ec == TPACPI_MATCH_ANY)) | |
485 | return qlist->quirks; | |
486 | ||
487 | qlist_size--; | |
488 | qlist++; | |
489 | } | |
490 | return 0; | |
491 | } | |
492 | ||
e28393c0 HMH |
493 | static inline bool __pure __init tpacpi_is_lenovo(void) |
494 | { | |
495 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
496 | } | |
497 | ||
498 | static inline bool __pure __init tpacpi_is_ibm(void) | |
499 | { | |
500 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
501 | } | |
7d95a3d5 | 502 | |
56b6aeb0 HMH |
503 | /**************************************************************************** |
504 | **************************************************************************** | |
505 | * | |
506 | * ACPI Helpers and device model | |
507 | * | |
508 | **************************************************************************** | |
509 | ****************************************************************************/ | |
510 | ||
511 | /************************************************************************* | |
512 | * ACPI basic handles | |
513 | */ | |
1da177e4 | 514 | |
94954cc6 | 515 | static acpi_handle root_handle; |
437e470c | 516 | static acpi_handle ec_handle; |
1da177e4 | 517 | |
e0c7dfe7 | 518 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 519 | static acpi_handle object##_handle; \ |
ef07a5ab HMH |
520 | static const acpi_handle *object##_parent __initdata = \ |
521 | &parent##_handle; \ | |
522 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 523 | |
e0c7dfe7 HMH |
524 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
525 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 526 | |
35ff8b9f HMH |
527 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
528 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
529 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
530 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 531 | ); /* all others */ |
78f81cc4 | 532 | |
e0c7dfe7 | 533 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
534 | "^HKEY", /* R30, R31 */ |
535 | "HKEY", /* all others */ | |
56b6aeb0 | 536 | ); /* 570 */ |
78f81cc4 | 537 | |
56b6aeb0 HMH |
538 | /************************************************************************* |
539 | * ACPI helpers | |
a8b7a662 HMH |
540 | */ |
541 | ||
1da177e4 LT |
542 | static int acpi_evalf(acpi_handle handle, |
543 | void *res, char *method, char *fmt, ...) | |
544 | { | |
545 | char *fmt0 = fmt; | |
78f81cc4 | 546 | struct acpi_object_list params; |
e0c7dfe7 | 547 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
548 | struct acpi_buffer result, *resultp; |
549 | union acpi_object out_obj; | |
550 | acpi_status status; | |
551 | va_list ap; | |
552 | char res_type; | |
553 | int success; | |
554 | int quiet; | |
1da177e4 LT |
555 | |
556 | if (!*fmt) { | |
e0c7dfe7 | 557 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
558 | return 0; |
559 | } | |
560 | ||
561 | if (*fmt == 'q') { | |
562 | quiet = 1; | |
563 | fmt++; | |
564 | } else | |
565 | quiet = 0; | |
566 | ||
567 | res_type = *(fmt++); | |
568 | ||
569 | params.count = 0; | |
570 | params.pointer = &in_objs[0]; | |
571 | ||
572 | va_start(ap, fmt); | |
573 | while (*fmt) { | |
574 | char c = *(fmt++); | |
575 | switch (c) { | |
576 | case 'd': /* int */ | |
577 | in_objs[params.count].integer.value = va_arg(ap, int); | |
578 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
579 | break; | |
78f81cc4 | 580 | /* add more types as needed */ |
1da177e4 | 581 | default: |
e0c7dfe7 | 582 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 | 583 | "with invalid format character '%c'\n", c); |
21365851 | 584 | va_end(ap); |
1da177e4 LT |
585 | return 0; |
586 | } | |
587 | } | |
588 | va_end(ap); | |
589 | ||
78f81cc4 BD |
590 | if (res_type != 'v') { |
591 | result.length = sizeof(out_obj); | |
592 | result.pointer = &out_obj; | |
593 | resultp = &result; | |
594 | } else | |
595 | resultp = NULL; | |
1da177e4 | 596 | |
78f81cc4 | 597 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
598 | |
599 | switch (res_type) { | |
78f81cc4 | 600 | case 'd': /* int */ |
263f4a30 HMH |
601 | success = (status == AE_OK && |
602 | out_obj.type == ACPI_TYPE_INTEGER); | |
603 | if (success && res) | |
1da177e4 | 604 | *(int *)res = out_obj.integer.value; |
1da177e4 | 605 | break; |
78f81cc4 | 606 | case 'v': /* void */ |
1da177e4 LT |
607 | success = status == AE_OK; |
608 | break; | |
78f81cc4 | 609 | /* add more types as needed */ |
1da177e4 | 610 | default: |
e0c7dfe7 | 611 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
612 | "with invalid format character '%c'\n", res_type); |
613 | return 0; | |
614 | } | |
615 | ||
56b6aeb0 | 616 | if (!success && !quiet) |
263f4a30 HMH |
617 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %s\n", |
618 | method, fmt0, acpi_format_exception(status)); | |
56b6aeb0 HMH |
619 | |
620 | return success; | |
621 | } | |
622 | ||
35ff8b9f | 623 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
624 | { |
625 | int v; | |
626 | ||
627 | if (ecrd_handle) { | |
628 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
629 | return 0; | |
630 | *p = v; | |
631 | } else { | |
632 | if (ec_read(i, p) < 0) | |
633 | return 0; | |
634 | } | |
635 | ||
636 | return 1; | |
637 | } | |
638 | ||
639 | static int acpi_ec_write(int i, u8 v) | |
640 | { | |
641 | if (ecwr_handle) { | |
642 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
643 | return 0; | |
644 | } else { | |
645 | if (ec_write(i, v) < 0) | |
646 | return 0; | |
647 | } | |
648 | ||
649 | return 1; | |
650 | } | |
651 | ||
c9bea99c HMH |
652 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
653 | { | |
654 | if (!cmos_handle) | |
655 | return -ENXIO; | |
656 | ||
657 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
658 | return -EIO; | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
56b6aeb0 HMH |
663 | /************************************************************************* |
664 | * ACPI device model | |
665 | */ | |
666 | ||
35ff8b9f HMH |
667 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
668 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 669 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 670 | |
ef07a5ab HMH |
671 | static void __init drv_acpi_handle_init(const char *name, |
672 | acpi_handle *handle, const acpi_handle parent, | |
673 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
674 | { |
675 | int i; | |
676 | acpi_status status; | |
677 | ||
5ae930e6 HMH |
678 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
679 | name); | |
680 | ||
56b6aeb0 HMH |
681 | for (i = 0; i < num_paths; i++) { |
682 | status = acpi_get_handle(parent, paths[i], handle); | |
683 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
684 | dbg_printk(TPACPI_DBG_INIT, |
685 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 686 | paths[i], name); |
56b6aeb0 HMH |
687 | return; |
688 | } | |
689 | } | |
690 | ||
5ae930e6 HMH |
691 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
692 | name); | |
56b6aeb0 HMH |
693 | *handle = NULL; |
694 | } | |
695 | ||
437e470c HMH |
696 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
697 | u32 level, void *context, void **return_value) | |
698 | { | |
699 | *(acpi_handle *)return_value = handle; | |
700 | ||
701 | return AE_CTRL_TERMINATE; | |
702 | } | |
703 | ||
704 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
705 | const char *hid, | |
706 | acpi_handle *handle) | |
707 | { | |
708 | acpi_status status; | |
709 | acpi_handle device_found; | |
710 | ||
711 | BUG_ON(!name || !hid || !handle); | |
712 | vdbg_printk(TPACPI_DBG_INIT, | |
713 | "trying to locate ACPI handle for %s, using HID %s\n", | |
714 | name, hid); | |
715 | ||
716 | memset(&device_found, 0, sizeof(device_found)); | |
717 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
718 | (void *)name, &device_found); | |
719 | ||
720 | *handle = NULL; | |
721 | ||
722 | if (ACPI_SUCCESS(status)) { | |
723 | *handle = device_found; | |
724 | dbg_printk(TPACPI_DBG_INIT, | |
725 | "Found ACPI handle for %s\n", name); | |
726 | } else { | |
727 | vdbg_printk(TPACPI_DBG_INIT, | |
728 | "Could not locate an ACPI handle for %s: %s\n", | |
729 | name, acpi_format_exception(status)); | |
730 | } | |
731 | } | |
732 | ||
8d376cd6 | 733 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
734 | { |
735 | struct ibm_struct *ibm = data; | |
736 | ||
8fef502e HMH |
737 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
738 | return; | |
739 | ||
8d376cd6 | 740 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
741 | return; |
742 | ||
8d376cd6 | 743 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
744 | } |
745 | ||
8d376cd6 | 746 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
747 | { |
748 | acpi_status status; | |
5ae930e6 | 749 | int rc; |
56b6aeb0 | 750 | |
8d376cd6 HMH |
751 | BUG_ON(!ibm->acpi); |
752 | ||
753 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
754 | return 0; |
755 | ||
5ae930e6 | 756 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
757 | "setting up ACPI notify for %s\n", ibm->name); |
758 | ||
5ae930e6 HMH |
759 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
760 | if (rc < 0) { | |
e0c7dfe7 | 761 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 762 | ibm->name, rc); |
56b6aeb0 HMH |
763 | return -ENODEV; |
764 | } | |
765 | ||
db89b4f0 | 766 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 767 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 768 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 769 | ibm->name); |
56b6aeb0 | 770 | |
8d376cd6 HMH |
771 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
772 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
773 | if (ACPI_FAILURE(status)) { |
774 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
775 | printk(TPACPI_NOTICE |
776 | "another device driver is already " | |
777 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 778 | } else { |
35ff8b9f | 779 | printk(TPACPI_ERR |
72f19921 HMH |
780 | "acpi_install_notify_handler(%s) failed: %s\n", |
781 | ibm->name, acpi_format_exception(status)); | |
56b6aeb0 HMH |
782 | } |
783 | return -ENODEV; | |
784 | } | |
8d376cd6 | 785 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
786 | return 0; |
787 | } | |
788 | ||
8d376cd6 | 789 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
790 | { |
791 | return 0; | |
792 | } | |
793 | ||
6700121b | 794 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 795 | { |
5ae930e6 | 796 | int rc; |
56b6aeb0 | 797 | |
fe08bc4b HMH |
798 | dbg_printk(TPACPI_DBG_INIT, |
799 | "registering %s as an ACPI driver\n", ibm->name); | |
800 | ||
8d376cd6 HMH |
801 | BUG_ON(!ibm->acpi); |
802 | ||
803 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
804 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
805 | printk(TPACPI_ERR |
806 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 807 | return -ENOMEM; |
56b6aeb0 HMH |
808 | } |
809 | ||
e0c7dfe7 | 810 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 811 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 812 | |
8d376cd6 | 813 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 814 | |
5ae930e6 HMH |
815 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
816 | if (rc < 0) { | |
e0c7dfe7 | 817 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 818 | ibm->name, rc); |
8d376cd6 HMH |
819 | kfree(ibm->acpi->driver); |
820 | ibm->acpi->driver = NULL; | |
5ae930e6 | 821 | } else if (!rc) |
8d376cd6 | 822 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 823 | |
5ae930e6 | 824 | return rc; |
56b6aeb0 HMH |
825 | } |
826 | ||
827 | ||
828 | /**************************************************************************** | |
829 | **************************************************************************** | |
830 | * | |
831 | * Procfs Helpers | |
832 | * | |
833 | **************************************************************************** | |
834 | ****************************************************************************/ | |
835 | ||
887965e6 | 836 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 837 | { |
887965e6 | 838 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
839 | |
840 | if (!ibm || !ibm->read) | |
841 | return -EINVAL; | |
887965e6 AD |
842 | return ibm->read(m); |
843 | } | |
56b6aeb0 | 844 | |
887965e6 AD |
845 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
846 | { | |
847 | return single_open(file, dispatch_proc_show, PDE(inode)->data); | |
56b6aeb0 HMH |
848 | } |
849 | ||
887965e6 | 850 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 851 | const char __user *userbuf, |
887965e6 | 852 | size_t count, loff_t *pos) |
56b6aeb0 | 853 | { |
887965e6 | 854 | struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data; |
56b6aeb0 HMH |
855 | char *kernbuf; |
856 | int ret; | |
857 | ||
858 | if (!ibm || !ibm->write) | |
859 | return -EINVAL; | |
5b05d469 MB |
860 | if (count > PAGE_SIZE - 2) |
861 | return -EINVAL; | |
56b6aeb0 HMH |
862 | |
863 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
864 | if (!kernbuf) | |
865 | return -ENOMEM; | |
1da177e4 | 866 | |
56b6aeb0 HMH |
867 | if (copy_from_user(kernbuf, userbuf, count)) { |
868 | kfree(kernbuf); | |
869 | return -EFAULT; | |
870 | } | |
1da177e4 | 871 | |
56b6aeb0 HMH |
872 | kernbuf[count] = 0; |
873 | strcat(kernbuf, ","); | |
874 | ret = ibm->write(kernbuf); | |
875 | if (ret == 0) | |
876 | ret = count; | |
1da177e4 | 877 | |
56b6aeb0 HMH |
878 | kfree(kernbuf); |
879 | ||
880 | return ret; | |
1da177e4 LT |
881 | } |
882 | ||
887965e6 AD |
883 | static const struct file_operations dispatch_proc_fops = { |
884 | .owner = THIS_MODULE, | |
885 | .open = dispatch_proc_open, | |
886 | .read = seq_read, | |
887 | .llseek = seq_lseek, | |
888 | .release = single_release, | |
889 | .write = dispatch_proc_write, | |
890 | }; | |
891 | ||
1da177e4 LT |
892 | static char *next_cmd(char **cmds) |
893 | { | |
894 | char *start = *cmds; | |
895 | char *end; | |
896 | ||
897 | while ((end = strchr(start, ',')) && end == start) | |
898 | start = end + 1; | |
899 | ||
900 | if (!end) | |
901 | return NULL; | |
902 | ||
903 | *end = 0; | |
904 | *cmds = end + 1; | |
905 | return start; | |
906 | } | |
907 | ||
56b6aeb0 | 908 | |
54ae1501 HMH |
909 | /**************************************************************************** |
910 | **************************************************************************** | |
911 | * | |
7f5d1cd6 | 912 | * Device model: input, hwmon and platform |
54ae1501 HMH |
913 | * |
914 | **************************************************************************** | |
915 | ****************************************************************************/ | |
916 | ||
94954cc6 | 917 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 918 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 919 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 920 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 921 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 922 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 923 | |
083f1760 HMH |
924 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
925 | pm_message_t state) | |
926 | { | |
927 | struct ibm_struct *ibm, *itmp; | |
928 | ||
929 | list_for_each_entry_safe(ibm, itmp, | |
930 | &tpacpi_all_drivers, | |
931 | all_drivers) { | |
932 | if (ibm->suspend) | |
933 | (ibm->suspend)(state); | |
934 | } | |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
e295e850 HMH |
939 | static int tpacpi_resume_handler(struct platform_device *pdev) |
940 | { | |
941 | struct ibm_struct *ibm, *itmp; | |
942 | ||
943 | list_for_each_entry_safe(ibm, itmp, | |
944 | &tpacpi_all_drivers, | |
945 | all_drivers) { | |
946 | if (ibm->resume) | |
947 | (ibm->resume)(); | |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
90d9d3c7 HMH |
953 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
954 | { | |
955 | struct ibm_struct *ibm, *itmp; | |
956 | ||
957 | list_for_each_entry_safe(ibm, itmp, | |
958 | &tpacpi_all_drivers, | |
959 | all_drivers) { | |
960 | if (ibm->shutdown) | |
961 | (ibm->shutdown)(); | |
962 | } | |
963 | } | |
964 | ||
54ae1501 HMH |
965 | static struct platform_driver tpacpi_pdriver = { |
966 | .driver = { | |
e0c7dfe7 | 967 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
968 | .owner = THIS_MODULE, |
969 | }, | |
083f1760 | 970 | .suspend = tpacpi_suspend_handler, |
e295e850 | 971 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 972 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
973 | }; |
974 | ||
7fd40029 HMH |
975 | static struct platform_driver tpacpi_hwmon_pdriver = { |
976 | .driver = { | |
e0c7dfe7 | 977 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
978 | .owner = THIS_MODULE, |
979 | }, | |
980 | }; | |
54ae1501 | 981 | |
176750d6 | 982 | /************************************************************************* |
b21a15f6 | 983 | * sysfs support helpers |
176750d6 HMH |
984 | */ |
985 | ||
b21a15f6 HMH |
986 | struct attribute_set { |
987 | unsigned int members, max_members; | |
988 | struct attribute_group group; | |
176750d6 HMH |
989 | }; |
990 | ||
7252374a HMH |
991 | struct attribute_set_obj { |
992 | struct attribute_set s; | |
993 | struct attribute *a; | |
994 | } __attribute__((packed)); | |
995 | ||
996 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 997 | const char *name) |
7252374a HMH |
998 | { |
999 | struct attribute_set_obj *sobj; | |
1000 | ||
1001 | if (max_members == 0) | |
1002 | return NULL; | |
1003 | ||
1004 | /* Allocates space for implicit NULL at the end too */ | |
1005 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1006 | max_members * sizeof(struct attribute *), | |
1007 | GFP_KERNEL); | |
1008 | if (!sobj) | |
1009 | return NULL; | |
1010 | sobj->s.max_members = max_members; | |
1011 | sobj->s.group.attrs = &sobj->a; | |
1012 | sobj->s.group.name = name; | |
1013 | ||
1014 | return &sobj->s; | |
1015 | } | |
1016 | ||
f74a27d4 HMH |
1017 | #define destroy_attr_set(_set) \ |
1018 | kfree(_set); | |
1019 | ||
7252374a | 1020 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1021 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1022 | { |
1023 | if (!s || !attr) | |
1024 | return -EINVAL; | |
1025 | ||
1026 | if (s->members >= s->max_members) | |
1027 | return -ENOMEM; | |
1028 | ||
1029 | s->group.attrs[s->members] = attr; | |
1030 | s->members++; | |
1031 | ||
1032 | return 0; | |
1033 | } | |
1034 | ||
35ff8b9f | 1035 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1036 | struct attribute **attr, |
1037 | unsigned int count) | |
1038 | { | |
1039 | int i, res; | |
1040 | ||
1041 | for (i = 0; i < count; i++) { | |
1042 | res = add_to_attr_set(s, attr[i]); | |
1043 | if (res) | |
1044 | return res; | |
1045 | } | |
1046 | ||
1047 | return 0; | |
1048 | } | |
1049 | ||
35ff8b9f | 1050 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1051 | { |
1052 | sysfs_remove_group(kobj, &s->group); | |
1053 | destroy_attr_set(s); | |
1054 | } | |
1055 | ||
f74a27d4 HMH |
1056 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1057 | sysfs_create_group(_kobj, &_attr_set->group) | |
1058 | ||
7252374a HMH |
1059 | static int parse_strtoul(const char *buf, |
1060 | unsigned long max, unsigned long *value) | |
1061 | { | |
1062 | char *endp; | |
1063 | ||
e7d2860b AGR |
1064 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1065 | endp = skip_spaces(endp); | |
7252374a HMH |
1066 | if (*endp || *value > max) |
1067 | return -EINVAL; | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
d64c81c4 HMH |
1072 | static void tpacpi_disable_brightness_delay(void) |
1073 | { | |
1074 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
1075 | printk(TPACPI_NOTICE | |
1076 | "ACPI backlight control delay disabled\n"); | |
1077 | } | |
1078 | ||
19d337df JB |
1079 | static void printk_deprecated_attribute(const char * const what, |
1080 | const char * const details) | |
1081 | { | |
1082 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
1083 | printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " | |
1084 | "will be removed. %s\n", | |
1085 | what, details); | |
1086 | } | |
1087 | ||
1088 | /************************************************************************* | |
1089 | * rfkill and radio control support helpers | |
1090 | */ | |
1091 | ||
1092 | /* | |
1093 | * ThinkPad-ACPI firmware handling model: | |
1094 | * | |
1095 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1096 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1097 | * as expected. It overrides all radio state in firmware | |
1098 | * | |
1099 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1100 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1101 | * | |
1102 | * The only time there are shadow radio state changes, is when | |
1103 | * masked-off hotkeys are used. | |
1104 | */ | |
1105 | ||
1106 | /* | |
1107 | * Internal driver API for radio state: | |
1108 | * | |
1109 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1110 | * bool: true means radio blocked (off) | |
1111 | */ | |
1112 | enum tpacpi_rfkill_state { | |
1113 | TPACPI_RFK_RADIO_OFF = 0, | |
1114 | TPACPI_RFK_RADIO_ON | |
1115 | }; | |
1116 | ||
1117 | /* rfkill switches */ | |
1118 | enum tpacpi_rfk_id { | |
1119 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1120 | TPACPI_RFK_WWAN_SW_ID, | |
1121 | TPACPI_RFK_UWB_SW_ID, | |
1122 | TPACPI_RFK_SW_MAX | |
1123 | }; | |
1124 | ||
1125 | static const char *tpacpi_rfkill_names[] = { | |
1126 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1127 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1128 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1129 | [TPACPI_RFK_SW_MAX] = NULL | |
1130 | }; | |
1131 | ||
1132 | /* ThinkPad-ACPI rfkill subdriver */ | |
1133 | struct tpacpi_rfk { | |
1134 | struct rfkill *rfkill; | |
1135 | enum tpacpi_rfk_id id; | |
1136 | const struct tpacpi_rfk_ops *ops; | |
1137 | }; | |
1138 | ||
1139 | struct tpacpi_rfk_ops { | |
1140 | /* firmware interface */ | |
1141 | int (*get_status)(void); | |
1142 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1143 | }; | |
1144 | ||
1145 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1146 | ||
1147 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1148 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1149 | { | |
1150 | int status; | |
1151 | ||
1152 | if (!tp_rfk) | |
1153 | return -ENODEV; | |
1154 | ||
1155 | status = (tp_rfk->ops->get_status)(); | |
1156 | if (status < 0) | |
1157 | return status; | |
1158 | ||
1159 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1160 | (status == TPACPI_RFK_RADIO_OFF)); | |
1161 | ||
1162 | return status; | |
1163 | } | |
1164 | ||
1165 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1166 | static void tpacpi_rfk_update_swstate_all(void) | |
1167 | { | |
1168 | unsigned int i; | |
1169 | ||
1170 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1171 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1172 | } | |
1173 | ||
1174 | /* | |
1175 | * Sync the HW-blocking state of all rfkill switches, | |
1176 | * do notice it causes the rfkill core to schedule uevents | |
1177 | */ | |
1178 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1179 | { | |
1180 | unsigned int i; | |
1181 | struct tpacpi_rfk *tp_rfk; | |
1182 | ||
1183 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1184 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1185 | if (tp_rfk) { | |
1186 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1187 | blocked)) { | |
1188 | /* ignore -- we track sw block */ | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | /* Call to get the WLSW state from the firmware */ | |
1195 | static int hotkey_get_wlsw(void); | |
1196 | ||
1197 | /* Call to query WLSW state and update all rfkill switches */ | |
1198 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1199 | { | |
1200 | int res = hotkey_get_wlsw(); | |
1201 | int hw_blocked; | |
1202 | ||
1203 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1204 | if (res < 0) | |
1205 | return false; | |
1206 | ||
1207 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1208 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1209 | ||
1210 | return hw_blocked; | |
1211 | } | |
1212 | ||
1213 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1214 | { | |
1215 | struct tpacpi_rfk *tp_rfk = data; | |
1216 | int res; | |
1217 | ||
1218 | dbg_printk(TPACPI_DBG_RFKILL, | |
1219 | "request to change radio state to %s\n", | |
1220 | blocked ? "blocked" : "unblocked"); | |
1221 | ||
1222 | /* try to set radio state */ | |
1223 | res = (tp_rfk->ops->set_status)(blocked ? | |
1224 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1225 | ||
1226 | /* and update the rfkill core with whatever the FW really did */ | |
1227 | tpacpi_rfk_update_swstate(tp_rfk); | |
1228 | ||
1229 | return (res < 0) ? res : 0; | |
1230 | } | |
1231 | ||
1232 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1233 | .set_block = tpacpi_rfk_hook_set_block, | |
1234 | }; | |
1235 | ||
1236 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1237 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1238 | const enum rfkill_type rfktype, |
1239 | const char *name, | |
19d337df | 1240 | const bool set_default) |
0e74dc26 | 1241 | { |
19d337df | 1242 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1243 | int res; |
06d5caf4 | 1244 | bool sw_state = false; |
5451a923 | 1245 | bool hw_state; |
06d5caf4 | 1246 | int sw_status; |
90d9d3c7 | 1247 | |
19d337df JB |
1248 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1249 | ||
19d337df JB |
1250 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1251 | if (atp_rfk) | |
1252 | atp_rfk->rfkill = rfkill_alloc(name, | |
1253 | &tpacpi_pdev->dev, | |
1254 | rfktype, | |
1255 | &tpacpi_rfk_rfkill_ops, | |
1256 | atp_rfk); | |
1257 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0e74dc26 HMH |
1258 | printk(TPACPI_ERR |
1259 | "failed to allocate memory for rfkill class\n"); | |
19d337df | 1260 | kfree(atp_rfk); |
0e74dc26 HMH |
1261 | return -ENOMEM; |
1262 | } | |
1263 | ||
19d337df JB |
1264 | atp_rfk->id = id; |
1265 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1266 | |
06d5caf4 AJ |
1267 | sw_status = (tp_rfkops->get_status)(); |
1268 | if (sw_status < 0) { | |
b3fa1329 AJ |
1269 | printk(TPACPI_ERR |
1270 | "failed to read initial state for %s, error %d\n", | |
06d5caf4 | 1271 | name, sw_status); |
b3fa1329 | 1272 | } else { |
06d5caf4 | 1273 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1274 | if (set_default) { |
1275 | /* try to keep the initial state, since we ask the | |
1276 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1277 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1278 | } |
1279 | } | |
5451a923 HMH |
1280 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1281 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1282 | |
1283 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 HMH |
1284 | if (res < 0) { |
1285 | printk(TPACPI_ERR | |
1286 | "failed to register %s rfkill switch: %d\n", | |
1287 | name, res); | |
19d337df JB |
1288 | rfkill_destroy(atp_rfk->rfkill); |
1289 | kfree(atp_rfk); | |
0e74dc26 HMH |
1290 | return res; |
1291 | } | |
1292 | ||
19d337df | 1293 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 HMH |
1294 | |
1295 | printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", | |
1296 | name, (sw_state || hw_state) ? "" : "un"); | |
0e74dc26 HMH |
1297 | return 0; |
1298 | } | |
1299 | ||
19d337df | 1300 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1301 | { |
19d337df JB |
1302 | struct tpacpi_rfk *tp_rfk; |
1303 | ||
1304 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1305 | ||
1306 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1307 | if (tp_rfk) { | |
1308 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1309 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1310 | tpacpi_rfkill_switches[id] = NULL; |
1311 | kfree(tp_rfk); | |
1312 | } | |
73a94d86 HMH |
1313 | } |
1314 | ||
1315 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1316 | { | |
1317 | printk_deprecated_attribute(what, | |
1318 | "Please switch to generic rfkill before year 2010"); | |
1319 | } | |
1320 | ||
19d337df JB |
1321 | /* sysfs <radio> enable ------------------------------------------------ */ |
1322 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1323 | struct device_attribute *attr, | |
1324 | char *buf) | |
1325 | { | |
1326 | int status; | |
1327 | ||
1328 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1329 | ||
1330 | /* This is in the ABI... */ | |
1331 | if (tpacpi_rfk_check_hwblock_state()) { | |
1332 | status = TPACPI_RFK_RADIO_OFF; | |
1333 | } else { | |
1334 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1335 | if (status < 0) | |
1336 | return status; | |
1337 | } | |
1338 | ||
1339 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1340 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1341 | } | |
1342 | ||
1343 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1344 | struct device_attribute *attr, | |
1345 | const char *buf, size_t count) | |
1346 | { | |
1347 | unsigned long t; | |
1348 | int res; | |
1349 | ||
1350 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1351 | ||
1352 | if (parse_strtoul(buf, 1, &t)) | |
1353 | return -EINVAL; | |
1354 | ||
1355 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1356 | ||
1357 | /* This is in the ABI... */ | |
1358 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1359 | return -EPERM; | |
1360 | ||
1361 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1362 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1363 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1364 | ||
1365 | return (res < 0) ? res : count; | |
1366 | } | |
1367 | ||
1368 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1369 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1370 | { |
19d337df | 1371 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1372 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1373 | else { |
1374 | int status; | |
1375 | ||
1376 | /* This is in the ABI... */ | |
1377 | if (tpacpi_rfk_check_hwblock_state()) { | |
1378 | status = TPACPI_RFK_RADIO_OFF; | |
1379 | } else { | |
1380 | status = tpacpi_rfk_update_swstate( | |
1381 | tpacpi_rfkill_switches[id]); | |
1382 | if (status < 0) | |
1383 | return status; | |
1384 | } | |
1385 | ||
887965e6 | 1386 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1387 | (status == TPACPI_RFK_RADIO_ON) ? |
1388 | "enabled" : "disabled"); | |
887965e6 | 1389 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1390 | } |
1391 | ||
887965e6 | 1392 | return 0; |
19d337df JB |
1393 | } |
1394 | ||
1395 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1396 | { | |
1397 | char *cmd; | |
1398 | int status = -1; | |
1399 | int res = 0; | |
1400 | ||
1401 | if (id >= TPACPI_RFK_SW_MAX) | |
1402 | return -ENODEV; | |
1403 | ||
1404 | while ((cmd = next_cmd(&buf))) { | |
1405 | if (strlencmp(cmd, "enable") == 0) | |
1406 | status = TPACPI_RFK_RADIO_ON; | |
1407 | else if (strlencmp(cmd, "disable") == 0) | |
1408 | status = TPACPI_RFK_RADIO_OFF; | |
1409 | else | |
1410 | return -EINVAL; | |
1411 | } | |
1412 | ||
1413 | if (status != -1) { | |
1414 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1415 | (status == TPACPI_RFK_RADIO_ON) ? | |
1416 | "enable" : "disable", | |
1417 | tpacpi_rfkill_names[id]); | |
1418 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1419 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1420 | } | |
1421 | ||
1422 | return res; | |
1423 | } | |
1424 | ||
56b6aeb0 | 1425 | /************************************************************************* |
b21a15f6 | 1426 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1427 | */ |
1428 | ||
b21a15f6 HMH |
1429 | /* interface_version --------------------------------------------------- */ |
1430 | static ssize_t tpacpi_driver_interface_version_show( | |
1431 | struct device_driver *drv, | |
1432 | char *buf) | |
1da177e4 | 1433 | { |
b21a15f6 HMH |
1434 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1435 | } | |
1436 | ||
1437 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1438 | tpacpi_driver_interface_version_show, NULL); | |
1439 | ||
1440 | /* debug_level --------------------------------------------------------- */ | |
1441 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1442 | char *buf) | |
1443 | { | |
1444 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1445 | } | |
1446 | ||
1447 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1448 | const char *buf, size_t count) | |
1449 | { | |
1450 | unsigned long t; | |
1451 | ||
1452 | if (parse_strtoul(buf, 0xffff, &t)) | |
1453 | return -EINVAL; | |
1454 | ||
1455 | dbg_level = t; | |
1456 | ||
1457 | return count; | |
1458 | } | |
1459 | ||
1460 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1461 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1462 | ||
1463 | /* version ------------------------------------------------------------- */ | |
1464 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1465 | char *buf) | |
1466 | { | |
35ff8b9f HMH |
1467 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1468 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1469 | } |
1470 | ||
1471 | static DRIVER_ATTR(version, S_IRUGO, | |
1472 | tpacpi_driver_version_show, NULL); | |
1473 | ||
1474 | /* --------------------------------------------------------------------- */ | |
1475 | ||
a73f3091 HMH |
1476 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1477 | ||
a73f3091 HMH |
1478 | /* wlsw_emulstate ------------------------------------------------------ */ |
1479 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1480 | char *buf) | |
1481 | { | |
1482 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1483 | } | |
1484 | ||
1485 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1486 | const char *buf, size_t count) | |
1487 | { | |
1488 | unsigned long t; | |
1489 | ||
1490 | if (parse_strtoul(buf, 1, &t)) | |
1491 | return -EINVAL; | |
1492 | ||
19d337df | 1493 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1494 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1495 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1496 | } | |
a73f3091 HMH |
1497 | |
1498 | return count; | |
1499 | } | |
1500 | ||
1501 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1502 | tpacpi_driver_wlsw_emulstate_show, | |
1503 | tpacpi_driver_wlsw_emulstate_store); | |
1504 | ||
1505 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1506 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1507 | struct device_driver *drv, | |
1508 | char *buf) | |
1509 | { | |
1510 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1511 | } | |
1512 | ||
1513 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1514 | struct device_driver *drv, | |
1515 | const char *buf, size_t count) | |
1516 | { | |
1517 | unsigned long t; | |
1518 | ||
1519 | if (parse_strtoul(buf, 1, &t)) | |
1520 | return -EINVAL; | |
1521 | ||
1522 | tpacpi_bluetooth_emulstate = !!t; | |
1523 | ||
1524 | return count; | |
1525 | } | |
1526 | ||
1527 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1528 | tpacpi_driver_bluetooth_emulstate_show, | |
1529 | tpacpi_driver_bluetooth_emulstate_store); | |
1530 | ||
1531 | /* wwan_emulstate ------------------------------------------------- */ | |
1532 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1533 | struct device_driver *drv, | |
1534 | char *buf) | |
1535 | { | |
1536 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1537 | } | |
1538 | ||
1539 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1540 | struct device_driver *drv, | |
1541 | const char *buf, size_t count) | |
1542 | { | |
1543 | unsigned long t; | |
1544 | ||
1545 | if (parse_strtoul(buf, 1, &t)) | |
1546 | return -EINVAL; | |
1547 | ||
1548 | tpacpi_wwan_emulstate = !!t; | |
1549 | ||
1550 | return count; | |
1551 | } | |
1552 | ||
1553 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1554 | tpacpi_driver_wwan_emulstate_show, | |
1555 | tpacpi_driver_wwan_emulstate_store); | |
1556 | ||
0045c0aa HMH |
1557 | /* uwb_emulstate ------------------------------------------------- */ |
1558 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1559 | struct device_driver *drv, | |
1560 | char *buf) | |
1561 | { | |
1562 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1563 | } | |
1564 | ||
1565 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1566 | struct device_driver *drv, | |
1567 | const char *buf, size_t count) | |
1568 | { | |
1569 | unsigned long t; | |
1570 | ||
1571 | if (parse_strtoul(buf, 1, &t)) | |
1572 | return -EINVAL; | |
1573 | ||
1574 | tpacpi_uwb_emulstate = !!t; | |
1575 | ||
1576 | return count; | |
1577 | } | |
1578 | ||
1579 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1580 | tpacpi_driver_uwb_emulstate_show, | |
1581 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1582 | #endif |
1583 | ||
1584 | /* --------------------------------------------------------------------- */ | |
1585 | ||
35ff8b9f | 1586 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1587 | &driver_attr_debug_level, &driver_attr_version, |
1588 | &driver_attr_interface_version, | |
1589 | }; | |
1590 | ||
1591 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1592 | { | |
1593 | int i, res; | |
1594 | ||
1595 | i = 0; | |
1596 | res = 0; | |
1597 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1598 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1599 | i++; | |
1600 | } | |
1601 | ||
a73f3091 HMH |
1602 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1603 | if (!res && dbg_wlswemul) | |
1604 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1605 | if (!res && dbg_bluetoothemul) | |
1606 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1607 | if (!res && dbg_wwanemul) | |
1608 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1609 | if (!res && dbg_uwbemul) |
1610 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1611 | #endif |
1612 | ||
b21a15f6 HMH |
1613 | return res; |
1614 | } | |
1615 | ||
1616 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1617 | { | |
1618 | int i; | |
1619 | ||
35ff8b9f | 1620 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1621 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1622 | |
1623 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1624 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1625 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1626 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1627 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1628 | #endif |
b21a15f6 HMH |
1629 | } |
1630 | ||
600a99fa HMH |
1631 | /************************************************************************* |
1632 | * Firmware Data | |
1633 | */ | |
1634 | ||
1635 | /* | |
1636 | * Table of recommended minimum BIOS versions | |
1637 | * | |
1638 | * Reasons for listing: | |
9ddc5b6f | 1639 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1640 | * bugs and bad ACPI behaviour on older versions |
1641 | * | |
1642 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1643 | * | |
1644 | * 3. BIOS with known reduced functionality in older versions | |
1645 | * | |
1646 | * We recommend the latest BIOS and EC version. | |
1647 | * We only support the latest BIOS and EC fw version as a rule. | |
1648 | * | |
1649 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1650 | * Information from users in ThinkWiki | |
e675abaf HMH |
1651 | * |
1652 | * WARNING: we use this table also to detect that the machine is | |
1653 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1654 | */ |
1655 | ||
1656 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1657 | { .vendor = (__v), \ | |
1658 | .bios = TPID(__id1, __id2), \ | |
1659 | .ec = TPACPI_MATCH_ANY, \ | |
1660 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1661 | | (__bv1) << 8 | (__bv2) } | |
1662 | ||
1663 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1664 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1665 | { .vendor = (__v), \ |
1666 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1667 | .ec = __eid, \ |
600a99fa HMH |
1668 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1669 | | (__bv1) << 8 | (__bv2) } | |
1670 | ||
1671 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1672 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1673 | ||
275014ae | 1674 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1675 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1676 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1677 | __bv1, __bv2, TPID(__id1, __id2), \ |
1678 | __ev1, __ev2), \ | |
1679 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1680 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1681 | __ev1, __ev2) | |
600a99fa | 1682 | |
275014ae | 1683 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1684 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1685 | __eid1, __eid2, __ev1, __ev2) \ | |
1686 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1687 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1688 | __ev1, __ev2), \ | |
1689 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1690 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1691 | __ev1, __ev2) | |
600a99fa HMH |
1692 | |
1693 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1694 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1695 | ||
1696 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1697 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1698 | __bv1, __bv2, TPID(__id1, __id2), \ |
1699 | __ev1, __ev2) | |
600a99fa HMH |
1700 | |
1701 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1702 | __eid1, __eid2, __ev1, __ev2) \ | |
1703 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1704 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1705 | __ev1, __ev2) | |
600a99fa HMH |
1706 | |
1707 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1708 | /* Numeric models ------------------ */ | |
1709 | /* FW MODEL BIOS VERS */ | |
1710 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1711 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1712 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1713 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1714 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1715 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1716 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1717 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1718 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1719 | ||
1720 | /* A-series ------------------------- */ | |
1721 | /* FW MODEL BIOS VERS EC VERS */ | |
1722 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1723 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1724 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1725 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1726 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1727 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1728 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1729 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1730 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1731 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1732 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1733 | ||
1734 | /* G-series ------------------------- */ | |
1735 | /* FW MODEL BIOS VERS */ | |
1736 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1737 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1738 | ||
1739 | /* R-series, T-series --------------- */ | |
1740 | /* FW MODEL BIOS VERS EC VERS */ | |
1741 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1742 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1743 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1744 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1745 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1746 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1747 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1748 | T40/p, T41/p, T42/p (1) */ | |
1749 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1750 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1751 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1752 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1753 | ||
1754 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1755 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1756 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1757 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1758 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1759 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1760 | ||
1761 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1762 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1763 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1764 | |
1765 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1766 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1767 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1768 | ||
1769 | /* X-series ------------------------- */ | |
1770 | /* FW MODEL BIOS VERS EC VERS */ | |
1771 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1772 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1773 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1774 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1775 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1776 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1777 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1778 | ||
90765c6a HMH |
1779 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1780 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1781 | |
1782 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1783 | /* (1) - older versions known to lack functionality */ | |
1784 | }; | |
1785 | ||
1786 | #undef TPV_QL1 | |
1787 | #undef TPV_QL0 | |
1788 | #undef TPV_QI2 | |
1789 | #undef TPV_QI1 | |
1790 | #undef TPV_QI0 | |
1791 | #undef TPV_Q_X | |
1792 | #undef TPV_Q | |
1793 | ||
1794 | static void __init tpacpi_check_outdated_fw(void) | |
1795 | { | |
1796 | unsigned long fwvers; | |
1797 | u16 ec_version, bios_version; | |
1798 | ||
1799 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1800 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1801 | ||
1802 | if (!fwvers) | |
1803 | return; | |
1804 | ||
1805 | bios_version = fwvers & 0xffffU; | |
1806 | ec_version = (fwvers >> 16) & 0xffffU; | |
1807 | ||
1808 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1809 | if ((bios_version > thinkpad_id.bios_release) || | |
1810 | (ec_version > thinkpad_id.ec_release && | |
1811 | ec_version != TPACPI_MATCH_ANY)) { | |
1812 | /* | |
1813 | * The changelogs would let us track down the exact | |
1814 | * reason, but it is just too much of a pain to track | |
1815 | * it. We only list BIOSes that are either really | |
1816 | * broken, or really stable to begin with, so it is | |
1817 | * best if the user upgrades the firmware anyway. | |
1818 | */ | |
1819 | printk(TPACPI_WARN | |
1820 | "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); | |
1821 | printk(TPACPI_WARN | |
1822 | "WARNING: This firmware may be missing critical bug " | |
1823 | "fixes and/or important features\n"); | |
1824 | } | |
1825 | } | |
1826 | ||
e675abaf HMH |
1827 | static bool __init tpacpi_is_fw_known(void) |
1828 | { | |
1829 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1830 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1831 | } | |
1832 | ||
b21a15f6 HMH |
1833 | /**************************************************************************** |
1834 | **************************************************************************** | |
1835 | * | |
1836 | * Subdrivers | |
1837 | * | |
1838 | **************************************************************************** | |
1839 | ****************************************************************************/ | |
1840 | ||
1841 | /************************************************************************* | |
7a43f788 | 1842 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1843 | */ |
1844 | ||
887965e6 | 1845 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1846 | { |
887965e6 AD |
1847 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1848 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1849 | return 0; | |
1da177e4 LT |
1850 | } |
1851 | ||
a5763f22 HMH |
1852 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1853 | .name = "driver", | |
1854 | .read = thinkpad_acpi_driver_read, | |
1855 | }; | |
1856 | ||
56b6aeb0 HMH |
1857 | /************************************************************************* |
1858 | * Hotkey subdriver | |
1859 | */ | |
1860 | ||
0d922e3b HMH |
1861 | /* |
1862 | * ThinkPad firmware event model | |
1863 | * | |
1864 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1865 | * notifications (which follow the ACPI standard), and a private event | |
1866 | * interface. | |
1867 | * | |
1868 | * The private event interface also issues events for the hotkeys. As | |
1869 | * the driver gained features, the event handling code ended up being | |
1870 | * built around the hotkey subdriver. This will need to be refactored | |
1871 | * to a more formal event API eventually. | |
1872 | * | |
1873 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1874 | * such as "brightness has changed", "volume has changed", depending on | |
1875 | * the ThinkPad model and how the firmware is operating. | |
1876 | * | |
1877 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1878 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1879 | * firmware model and version. | |
1880 | */ | |
1881 | ||
f74a27d4 HMH |
1882 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1883 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1884 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1885 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1886 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1887 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1888 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1889 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1890 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1891 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1892 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1893 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1894 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1895 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1896 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1897 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1898 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1899 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1900 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1901 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1902 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1903 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1904 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1905 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1906 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1907 | TP_ACPI_HOTKEYSCAN_UNK1, |
1908 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1909 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1910 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1911 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1912 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1913 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1914 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1915 | ||
1916 | /* Hotkey keymap size */ | |
1917 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1918 | }; |
1919 | ||
0d922e3b | 1920 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1921 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1922 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1923 | }; | |
1924 | ||
1925 | enum { /* Positions of some of the keys in hotkey masks */ | |
1926 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1927 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1928 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1929 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1930 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1931 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1932 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1933 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1934 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1935 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1936 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1937 | }; | |
1938 | ||
1939 | enum { /* NVRAM to ACPI HKEY group map */ | |
1940 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1941 | TP_ACPI_HKEY_ZOOM_MASK | | |
1942 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1943 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1944 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1945 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1946 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1947 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1948 | TP_ACPI_HKEY_MUTE_MASK, | |
1949 | }; | |
1950 | ||
1951 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1952 | struct tp_nvram_state { | |
1953 | u16 thinkpad_toggle:1; | |
1954 | u16 zoom_toggle:1; | |
1955 | u16 display_toggle:1; | |
1956 | u16 thinklight_toggle:1; | |
1957 | u16 hibernate_toggle:1; | |
1958 | u16 displayexp_toggle:1; | |
1959 | u16 display_state:1; | |
1960 | u16 brightness_toggle:1; | |
1961 | u16 volume_toggle:1; | |
1962 | u16 mute:1; | |
1963 | ||
1964 | u8 brightness_level; | |
1965 | u8 volume_level; | |
1966 | }; | |
1967 | ||
db25f16d | 1968 | /* kthread for the hotkey poller */ |
01e88f25 | 1969 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d HMH |
1970 | |
1971 | /* Acquired while the poller kthread is running, use to sync start/stop */ | |
01e88f25 | 1972 | static struct mutex hotkey_thread_mutex; |
db25f16d HMH |
1973 | |
1974 | /* | |
0d922e3b HMH |
1975 | * Acquire mutex to write poller control variables as an |
1976 | * atomic block. | |
1977 | * | |
1978 | * Increment hotkey_config_change when changing them if you | |
1979 | * want the kthread to forget old state. | |
db25f16d HMH |
1980 | * |
1981 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1982 | */ | |
01e88f25 HMH |
1983 | static struct mutex hotkey_thread_data_mutex; |
1984 | static unsigned int hotkey_config_change; | |
1985 | ||
db25f16d HMH |
1986 | /* |
1987 | * hotkey poller control variables | |
1988 | * | |
1989 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
1990 | * |
1991 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1992 | * should be used only when the changes need to be taken as | |
1993 | * a block, OR when one needs to force the kthread to forget | |
1994 | * old state. | |
db25f16d HMH |
1995 | */ |
1996 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1997 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
1998 | ||
1999 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2000 | do { \ | |
2001 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2002 | hotkey_config_change++; \ | |
2003 | } while (0); | |
2004 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2005 | mutex_unlock(&hotkey_thread_data_mutex); | |
2006 | ||
01e88f25 HMH |
2007 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2008 | ||
2009 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2010 | #define HOTKEY_CONFIG_CRITICAL_START |
2011 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2012 | |
2013 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2014 | ||
f74a27d4 HMH |
2015 | static struct mutex hotkey_mutex; |
2016 | ||
a713b4d7 HMH |
2017 | static enum { /* Reasons for waking up */ |
2018 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2019 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2020 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2021 | } hotkey_wakeup_reason; | |
2022 | ||
2023 | static int hotkey_autosleep_ack; | |
2024 | ||
0d922e3b HMH |
2025 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2026 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2027 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2028 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2029 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2030 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2031 | |
b21a15f6 HMH |
2032 | static unsigned int hotkey_report_mode; |
2033 | ||
edf0e0e5 | 2034 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2035 | |
94954cc6 | 2036 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2037 | |
8b468c0c HMH |
2038 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2039 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2040 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2041 | |
6c231bd5 HMH |
2042 | /* HKEY.MHKG() return bits */ |
2043 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2044 | ||
19d337df | 2045 | static int hotkey_get_wlsw(void) |
74941a69 | 2046 | { |
19d337df JB |
2047 | int status; |
2048 | ||
2049 | if (!tp_features.hotkey_wlsw) | |
2050 | return -ENODEV; | |
2051 | ||
a73f3091 | 2052 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2053 | if (dbg_wlswemul) |
2054 | return (tpacpi_wlsw_emulstate) ? | |
2055 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2056 | #endif |
19d337df JB |
2057 | |
2058 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2059 | return -EIO; |
19d337df JB |
2060 | |
2061 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2062 | } |
2063 | ||
6c231bd5 HMH |
2064 | static int hotkey_get_tablet_mode(int *status) |
2065 | { | |
2066 | int s; | |
2067 | ||
2068 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2069 | return -EIO; | |
2070 | ||
cee47f5a HMH |
2071 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2072 | return 0; | |
6c231bd5 HMH |
2073 | } |
2074 | ||
b2c985e7 | 2075 | /* |
0d922e3b HMH |
2076 | * Reads current event mask from firmware, and updates |
2077 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2078 | * from hotkey_user_mask that are unavailable to be | |
2079 | * delivered (shadow requirement of the userspace ABI). | |
2080 | * | |
b2c985e7 HMH |
2081 | * Call with hotkey_mutex held |
2082 | */ | |
2083 | static int hotkey_mask_get(void) | |
2084 | { | |
2085 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2086 | u32 m = 0; |
2087 | ||
01e88f25 | 2088 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2089 | return -EIO; |
0d922e3b HMH |
2090 | |
2091 | hotkey_acpi_mask = m; | |
2092 | } else { | |
2093 | /* no mask support doesn't mean no event support... */ | |
2094 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2095 | } |
0d922e3b HMH |
2096 | |
2097 | /* sync userspace-visible mask */ | |
2098 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2099 | |
2100 | return 0; | |
2101 | } | |
2102 | ||
0d922e3b HMH |
2103 | void static hotkey_mask_warn_incomplete_mask(void) |
2104 | { | |
2105 | /* log only what the user can fix... */ | |
2106 | const u32 wantedmask = hotkey_driver_mask & | |
2107 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2108 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2109 | ||
2110 | if (wantedmask) | |
2111 | printk(TPACPI_NOTICE | |
2112 | "required events 0x%08x not enabled!\n", | |
2113 | wantedmask); | |
2114 | } | |
2115 | ||
b2c985e7 | 2116 | /* |
0d922e3b HMH |
2117 | * Set the firmware mask when supported |
2118 | * | |
2119 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2120 | * | |
2121 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2122 | * | |
b2c985e7 HMH |
2123 | * Call with hotkey_mutex held |
2124 | */ | |
2125 | static int hotkey_mask_set(u32 mask) | |
2126 | { | |
2127 | int i; | |
2128 | int rc = 0; | |
2129 | ||
0d922e3b | 2130 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2131 | |
0d922e3b | 2132 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2133 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2134 | if (!acpi_evalf(hkey_handle, |
2135 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2136 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2137 | rc = -EIO; |
2138 | break; | |
b2c985e7 HMH |
2139 | } |
2140 | } | |
0d922e3b | 2141 | } |
b2c985e7 | 2142 | |
0d922e3b HMH |
2143 | /* |
2144 | * We *must* make an inconditional call to hotkey_mask_get to | |
2145 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2146 | * | |
2147 | * Take the opportunity to also log when we cannot _enable_ | |
2148 | * a given event. | |
2149 | */ | |
2150 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
2151 | printk(TPACPI_NOTICE | |
2152 | "asked for hotkey mask 0x%08x, but " | |
2153 | "firmware forced it to 0x%08x\n", | |
2154 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2155 | } |
2156 | ||
6b30eb7d HMH |
2157 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2158 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2159 | |
2160 | return rc; | |
2161 | } | |
2162 | ||
2163 | /* | |
2164 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2165 | * | |
2166 | * Call with hotkey_mutex held | |
2167 | */ | |
2168 | static int hotkey_user_mask_set(const u32 mask) | |
2169 | { | |
2170 | int rc; | |
2171 | ||
2172 | /* Give people a chance to notice they are doing something that | |
2173 | * is bound to go boom on their users sooner or later */ | |
2174 | if (!tp_warned.hotkey_mask_ff && | |
2175 | (mask == 0xffff || mask == 0xffffff || | |
2176 | mask == 0xffffffff)) { | |
2177 | tp_warned.hotkey_mask_ff = 1; | |
2178 | printk(TPACPI_NOTICE | |
2179 | "setting the hotkey mask to 0x%08x is likely " | |
2180 | "not the best way to go about it\n", mask); | |
2181 | printk(TPACPI_NOTICE | |
2182 | "please consider using the driver defaults, " | |
2183 | "and refer to up-to-date thinkpad-acpi " | |
2184 | "documentation\n"); | |
2185 | } | |
2186 | ||
2187 | /* Try to enable what the user asked for, plus whatever we need. | |
2188 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2189 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2190 | ||
2191 | /* Enable the available bits in hotkey_user_mask */ | |
2192 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2193 | ||
b2c985e7 HMH |
2194 | return rc; |
2195 | } | |
2196 | ||
8b468c0c HMH |
2197 | /* |
2198 | * Sets the driver hotkey mask. | |
2199 | * | |
2200 | * Can be called even if the hotkey subdriver is inactive | |
2201 | */ | |
2202 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2203 | { | |
2204 | int rc; | |
2205 | ||
2206 | /* Do the right thing if hotkey_init has not been called yet */ | |
2207 | if (!tp_features.hotkey) { | |
2208 | hotkey_driver_mask = mask; | |
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | mutex_lock(&hotkey_mutex); | |
2213 | ||
2214 | HOTKEY_CONFIG_CRITICAL_START | |
2215 | hotkey_driver_mask = mask; | |
b684a363 | 2216 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2217 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2218 | #endif |
8b468c0c HMH |
2219 | HOTKEY_CONFIG_CRITICAL_END |
2220 | ||
2221 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2222 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2223 | hotkey_poll_setup(true); |
2224 | ||
8b468c0c HMH |
2225 | mutex_unlock(&hotkey_mutex); |
2226 | ||
2227 | return rc; | |
2228 | } | |
2229 | ||
b2c985e7 HMH |
2230 | static int hotkey_status_get(int *status) |
2231 | { | |
2232 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2233 | return -EIO; | |
2234 | ||
2235 | return 0; | |
2236 | } | |
2237 | ||
2586d566 | 2238 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2239 | { |
2586d566 | 2240 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2241 | return -EIO; |
2242 | ||
2243 | return 0; | |
2244 | } | |
2245 | ||
6c231bd5 | 2246 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2247 | { |
6c231bd5 | 2248 | int state; |
b3ec6f91 | 2249 | |
6c231bd5 HMH |
2250 | if (tp_features.hotkey_tablet && |
2251 | !hotkey_get_tablet_mode(&state)) { | |
2252 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2253 | |
6c231bd5 HMH |
2254 | input_report_switch(tpacpi_inputdev, |
2255 | SW_TABLET_MODE, !!state); | |
2256 | input_sync(tpacpi_inputdev); | |
2257 | ||
2258 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2259 | } | |
b3ec6f91 HMH |
2260 | } |
2261 | ||
0d922e3b HMH |
2262 | /* Do NOT call without validating scancode first */ |
2263 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2264 | { |
0d922e3b | 2265 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2266 | |
2267 | if (keycode != KEY_RESERVED) { | |
2268 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2269 | ||
5ffba7e6 | 2270 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2271 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2272 | input_sync(tpacpi_inputdev); |
2273 | ||
5ffba7e6 | 2274 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2275 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2276 | input_sync(tpacpi_inputdev); |
2277 | ||
2278 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2279 | } | |
2280 | } | |
2281 | ||
0d922e3b HMH |
2282 | /* Do NOT call without validating scancode first */ |
2283 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2284 | { | |
8b468c0c | 2285 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2286 | if (hotkey_user_mask & (1 << scancode)) |
2287 | tpacpi_input_send_key(scancode); | |
2288 | } | |
2289 | ||
01e88f25 HMH |
2290 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2291 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2292 | ||
0d922e3b | 2293 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2294 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2295 | { | |
0d922e3b | 2296 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2297 | if (hotkey_report_mode < 2) { |
2298 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
67bcae6e | 2299 | 0x80, TP_HKEY_EV_HOTKEY_BASE + scancode); |
01e88f25 HMH |
2300 | } |
2301 | } | |
2302 | ||
0d922e3b | 2303 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2304 | { |
2305 | u8 d; | |
2306 | ||
2307 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2308 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2309 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2310 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2311 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2312 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2313 | } | |
2314 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2315 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2316 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2317 | } | |
2318 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2319 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2320 | n->displayexp_toggle = | |
2321 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2322 | } | |
2323 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2324 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2325 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2326 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2327 | n->brightness_toggle = | |
2328 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2329 | } | |
2330 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2331 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2332 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2333 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2334 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2335 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2336 | } | |
2337 | } | |
2338 | ||
0d922e3b HMH |
2339 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, |
2340 | struct tp_nvram_state *newn, | |
2341 | const u32 event_mask) | |
2342 | { | |
2343 | ||
01e88f25 | 2344 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ |
35ff8b9f | 2345 | do { \ |
0d922e3b | 2346 | if ((event_mask & (1 << __scancode)) && \ |
35ff8b9f | 2347 | oldn->__member != newn->__member) \ |
0d922e3b | 2348 | tpacpi_hotkey_send_key(__scancode); \ |
35ff8b9f | 2349 | } while (0) |
01e88f25 HMH |
2350 | |
2351 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
0d922e3b HMH |
2352 | do { \ |
2353 | if (event_mask & (1 << __scancode)) \ | |
2354 | tpacpi_hotkey_send_key(__scancode); \ | |
2355 | } while (0) | |
01e88f25 | 2356 | |
5d756db9 HMH |
2357 | void issue_volchange(const unsigned int oldvol, |
2358 | const unsigned int newvol) | |
2359 | { | |
2360 | unsigned int i = oldvol; | |
2361 | ||
2362 | while (i > newvol) { | |
2363 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2364 | i--; | |
2365 | } | |
2366 | while (i < newvol) { | |
2367 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2368 | i++; | |
2369 | } | |
2370 | } | |
2371 | ||
28999022 HMH |
2372 | void issue_brightnesschange(const unsigned int oldbrt, |
2373 | const unsigned int newbrt) | |
2374 | { | |
2375 | unsigned int i = oldbrt; | |
2376 | ||
2377 | while (i > newbrt) { | |
2378 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2379 | i--; | |
2380 | } | |
2381 | while (i < newbrt) { | |
2382 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2383 | i++; | |
2384 | } | |
2385 | } | |
2386 | ||
01e88f25 HMH |
2387 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2388 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2389 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2390 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2391 | ||
2392 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2393 | ||
2394 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2395 | ||
5d756db9 HMH |
2396 | /* |
2397 | * Handle volume | |
2398 | * | |
2399 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2400 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2401 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2402 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2403 | * - The act of unmuting issues volume up/down notification, |
2404 | * depending which key was used to unmute | |
2405 | * | |
2406 | * We are constrained to what the NVRAM can tell us, which is not much | |
2407 | * and certainly not enough if more than one volume hotkey was pressed | |
2408 | * since the last poll cycle. | |
2409 | * | |
2410 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2411 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2412 | */ | |
2413 | if (newn->mute) { | |
2414 | /* muted */ | |
2415 | if (!oldn->mute || | |
2416 | oldn->volume_toggle != newn->volume_toggle || | |
2417 | oldn->volume_level != newn->volume_level) { | |
2418 | /* recently muted, or repeated mute keypress, or | |
2419 | * multiple presses ending in mute */ | |
2420 | issue_volchange(oldn->volume_level, newn->volume_level); | |
01e88f25 HMH |
2421 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2422 | } | |
5d756db9 HMH |
2423 | } else { |
2424 | /* unmute */ | |
2425 | if (oldn->mute) { | |
2426 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2427 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2428 | } |
2429 | if (oldn->volume_level != newn->volume_level) { | |
2430 | issue_volchange(oldn->volume_level, newn->volume_level); | |
2431 | } else if (oldn->volume_toggle != newn->volume_toggle) { | |
2432 | /* repeated vol up/down keypress at end of scale ? */ | |
2433 | if (newn->volume_level == 0) | |
01e88f25 | 2434 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2435 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2436 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2437 | } |
2438 | } | |
2439 | ||
2440 | /* handle brightness */ | |
28999022 HMH |
2441 | if (oldn->brightness_level != newn->brightness_level) { |
2442 | issue_brightnesschange(oldn->brightness_level, | |
2443 | newn->brightness_level); | |
2444 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { | |
2445 | /* repeated key presses that didn't change state */ | |
2446 | if (newn->brightness_level == 0) | |
01e88f25 | 2447 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2448 | else if (newn->brightness_level >= bright_maxlvl |
2449 | && !tp_features.bright_unkfw) | |
2450 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2451 | } |
01e88f25 HMH |
2452 | |
2453 | #undef TPACPI_COMPARE_KEY | |
2454 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2455 | } |
01e88f25 | 2456 | |
0d922e3b HMH |
2457 | /* |
2458 | * Polling driver | |
2459 | * | |
2460 | * We track all events in hotkey_source_mask all the time, since | |
2461 | * most of them are edge-based. We only issue those requested by | |
2462 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2463 | */ | |
01e88f25 HMH |
2464 | static int hotkey_kthread(void *data) |
2465 | { | |
2466 | struct tp_nvram_state s[2]; | |
0d922e3b | 2467 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2468 | unsigned int si, so; |
2469 | unsigned long t; | |
2470 | unsigned int change_detector, must_reset; | |
db25f16d | 2471 | unsigned int poll_freq; |
01e88f25 HMH |
2472 | |
2473 | mutex_lock(&hotkey_thread_mutex); | |
2474 | ||
2475 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
2476 | goto exit; | |
2477 | ||
2478 | set_freezable(); | |
2479 | ||
2480 | so = 0; | |
2481 | si = 1; | |
2482 | t = 0; | |
2483 | ||
2484 | /* Initial state for compares */ | |
2485 | mutex_lock(&hotkey_thread_data_mutex); | |
2486 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2487 | poll_mask = hotkey_source_mask; |
2488 | event_mask = hotkey_source_mask & | |
2489 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2490 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2491 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2492 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2493 | |
db25f16d HMH |
2494 | while (!kthread_should_stop()) { |
2495 | if (t == 0) { | |
2496 | if (likely(poll_freq)) | |
2497 | t = 1000/poll_freq; | |
2498 | else | |
2499 | t = 100; /* should never happen... */ | |
2500 | } | |
01e88f25 HMH |
2501 | t = msleep_interruptible(t); |
2502 | if (unlikely(kthread_should_stop())) | |
2503 | break; | |
2504 | must_reset = try_to_freeze(); | |
2505 | if (t > 0 && !must_reset) | |
2506 | continue; | |
2507 | ||
2508 | mutex_lock(&hotkey_thread_data_mutex); | |
2509 | if (must_reset || hotkey_config_change != change_detector) { | |
2510 | /* forget old state on thaw or config change */ | |
2511 | si = so; | |
2512 | t = 0; | |
2513 | change_detector = hotkey_config_change; | |
2514 | } | |
0d922e3b HMH |
2515 | poll_mask = hotkey_source_mask; |
2516 | event_mask = hotkey_source_mask & | |
2517 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2518 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2519 | mutex_unlock(&hotkey_thread_data_mutex); |
2520 | ||
0d922e3b HMH |
2521 | if (likely(poll_mask)) { |
2522 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2523 | if (likely(si != so)) { |
2524 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2525 | event_mask); |
01e88f25 HMH |
2526 | } |
2527 | } | |
2528 | ||
2529 | so = si; | |
2530 | si ^= 1; | |
2531 | } | |
2532 | ||
2533 | exit: | |
2534 | mutex_unlock(&hotkey_thread_mutex); | |
2535 | return 0; | |
2536 | } | |
2537 | ||
db25f16d | 2538 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2539 | static void hotkey_poll_stop_sync(void) |
2540 | { | |
2541 | if (tpacpi_hotkey_task) { | |
2542 | if (frozen(tpacpi_hotkey_task) || | |
2543 | freezing(tpacpi_hotkey_task)) | |
2544 | thaw_process(tpacpi_hotkey_task); | |
2545 | ||
2546 | kthread_stop(tpacpi_hotkey_task); | |
2547 | tpacpi_hotkey_task = NULL; | |
2548 | mutex_lock(&hotkey_thread_mutex); | |
2549 | /* at this point, the thread did exit */ | |
2550 | mutex_unlock(&hotkey_thread_mutex); | |
2551 | } | |
2552 | } | |
2553 | ||
2554 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2555 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2556 | { |
0d922e3b HMH |
2557 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2558 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2559 | |
0d922e3b HMH |
2560 | if (hotkey_poll_freq > 0 && |
2561 | (poll_driver_mask || | |
2562 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2563 | if (!tpacpi_hotkey_task) { |
2564 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2565 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2566 | if (IS_ERR(tpacpi_hotkey_task)) { |
2567 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
2568 | printk(TPACPI_ERR |
2569 | "could not create kernel thread " | |
01e88f25 HMH |
2570 | "for hotkey polling\n"); |
2571 | } | |
2572 | } | |
2573 | } else { | |
2574 | hotkey_poll_stop_sync(); | |
0d922e3b | 2575 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2576 | hotkey_poll_freq == 0) { |
35ff8b9f | 2577 | printk(TPACPI_NOTICE |
0d922e3b HMH |
2578 | "hot keys 0x%08x and/or events 0x%08x " |
2579 | "require polling, which is currently " | |
2580 | "disabled\n", | |
2581 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2582 | } |
2583 | } | |
2584 | } | |
2585 | ||
7f0cf712 | 2586 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2587 | { |
2588 | mutex_lock(&hotkey_mutex); | |
2589 | hotkey_poll_setup(may_warn); | |
2590 | mutex_unlock(&hotkey_mutex); | |
2591 | } | |
2592 | ||
db25f16d HMH |
2593 | /* call with hotkey_mutex held */ |
2594 | static void hotkey_poll_set_freq(unsigned int freq) | |
2595 | { | |
2596 | if (!freq) | |
2597 | hotkey_poll_stop_sync(); | |
2598 | ||
db25f16d | 2599 | hotkey_poll_freq = freq; |
db25f16d HMH |
2600 | } |
2601 | ||
1bc6b9cd HMH |
2602 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2603 | ||
7f0cf712 HMH |
2604 | static void hotkey_poll_setup(const bool __unused) |
2605 | { | |
2606 | } | |
2607 | ||
2608 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2609 | { |
2610 | } | |
2611 | ||
2612 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2613 | ||
01e88f25 HMH |
2614 | static int hotkey_inputdev_open(struct input_dev *dev) |
2615 | { | |
2616 | switch (tpacpi_lifecycle) { | |
2617 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2618 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2619 | hotkey_poll_setup_safe(false); |
01e88f25 | 2620 | return 0; |
b589ea4c HMH |
2621 | case TPACPI_LIFE_EXITING: |
2622 | return -EBUSY; | |
01e88f25 HMH |
2623 | } |
2624 | ||
2625 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2626 | BUG(); | |
2627 | return -EBUSY; | |
2628 | } | |
2629 | ||
2630 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2631 | { | |
2632 | /* disable hotkey polling when possible */ | |
b589ea4c | 2633 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2634 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2635 | hotkey_poll_setup_safe(false); |
01e88f25 | 2636 | } |
01e88f25 | 2637 | |
a0416420 HMH |
2638 | /* sysfs hotkey enable ------------------------------------------------- */ |
2639 | static ssize_t hotkey_enable_show(struct device *dev, | |
2640 | struct device_attribute *attr, | |
2641 | char *buf) | |
2642 | { | |
ae92bd17 | 2643 | int res, status; |
a0416420 | 2644 | |
2586d566 HMH |
2645 | printk_deprecated_attribute("hotkey_enable", |
2646 | "Hotkey reporting is always enabled"); | |
2647 | ||
b2c985e7 | 2648 | res = hotkey_status_get(&status); |
a0416420 HMH |
2649 | if (res) |
2650 | return res; | |
2651 | ||
2652 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2653 | } | |
2654 | ||
2655 | static ssize_t hotkey_enable_store(struct device *dev, | |
2656 | struct device_attribute *attr, | |
2657 | const char *buf, size_t count) | |
2658 | { | |
2659 | unsigned long t; | |
2586d566 HMH |
2660 | |
2661 | printk_deprecated_attribute("hotkey_enable", | |
2662 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2663 | |
2664 | if (parse_strtoul(buf, 1, &t)) | |
2665 | return -EINVAL; | |
2666 | ||
2586d566 HMH |
2667 | if (t == 0) |
2668 | return -EPERM; | |
a0416420 | 2669 | |
2586d566 | 2670 | return count; |
a0416420 HMH |
2671 | } |
2672 | ||
2673 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 2674 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2675 | hotkey_enable_show, hotkey_enable_store); |
2676 | ||
2677 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2678 | static ssize_t hotkey_mask_show(struct device *dev, | |
2679 | struct device_attribute *attr, | |
2680 | char *buf) | |
2681 | { | |
0d922e3b | 2682 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2683 | } |
2684 | ||
2685 | static ssize_t hotkey_mask_store(struct device *dev, | |
2686 | struct device_attribute *attr, | |
2687 | const char *buf, size_t count) | |
2688 | { | |
2689 | unsigned long t; | |
b2c985e7 | 2690 | int res; |
a0416420 | 2691 | |
ae92bd17 | 2692 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2693 | return -EINVAL; |
2694 | ||
7646ea88 | 2695 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2696 | return -ERESTARTSYS; |
2697 | ||
0d922e3b | 2698 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2699 | |
2700 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2701 | hotkey_poll_setup(true); |
01e88f25 HMH |
2702 | #endif |
2703 | ||
b2c985e7 | 2704 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2705 | |
56e2c200 HMH |
2706 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2707 | ||
a0416420 HMH |
2708 | return (res) ? res : count; |
2709 | } | |
2710 | ||
2711 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 2712 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2713 | hotkey_mask_show, hotkey_mask_store); |
2714 | ||
2715 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2716 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2717 | struct device_attribute *attr, | |
2718 | char *buf) | |
2719 | { | |
2586d566 | 2720 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2721 | } |
2722 | ||
2723 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 2724 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
2725 | |
2726 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2727 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2728 | struct device_attribute *attr, | |
2729 | char *buf) | |
2730 | { | |
06777be6 HMH |
2731 | printk_deprecated_attribute("hotkey_bios_mask", |
2732 | "This attribute is useless."); | |
ae92bd17 | 2733 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2734 | } |
2735 | ||
2736 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 2737 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 2738 | |
9b010de5 HMH |
2739 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2740 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2741 | struct device_attribute *attr, | |
2742 | char *buf) | |
2743 | { | |
01e88f25 HMH |
2744 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2745 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2746 | } |
2747 | ||
2748 | static struct device_attribute dev_attr_hotkey_all_mask = | |
2749 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
2750 | ||
2751 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2752 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2753 | struct device_attribute *attr, | |
2754 | char *buf) | |
2755 | { | |
2756 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2757 | (hotkey_all_mask | hotkey_source_mask) |
2758 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2759 | } |
2760 | ||
2761 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
2762 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
2763 | hotkey_recommended_mask_show, NULL); | |
2764 | ||
01e88f25 HMH |
2765 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2766 | ||
2767 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2768 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2769 | struct device_attribute *attr, | |
2770 | char *buf) | |
2771 | { | |
2772 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2773 | } | |
2774 | ||
2775 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2776 | struct device_attribute *attr, | |
2777 | const char *buf, size_t count) | |
2778 | { | |
2779 | unsigned long t; | |
0d922e3b HMH |
2780 | u32 r_ev; |
2781 | int rc; | |
01e88f25 HMH |
2782 | |
2783 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2784 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2785 | return -EINVAL; | |
2786 | ||
7646ea88 | 2787 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2788 | return -ERESTARTSYS; |
2789 | ||
2790 | HOTKEY_CONFIG_CRITICAL_START | |
2791 | hotkey_source_mask = t; | |
2792 | HOTKEY_CONFIG_CRITICAL_END | |
2793 | ||
0d922e3b HMH |
2794 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2795 | ~hotkey_source_mask); | |
db25f16d | 2796 | hotkey_poll_setup(true); |
0d922e3b HMH |
2797 | |
2798 | /* check if events needed by the driver got disabled */ | |
2799 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2800 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2801 | |
2802 | mutex_unlock(&hotkey_mutex); | |
2803 | ||
0d922e3b HMH |
2804 | if (rc < 0) |
2805 | printk(TPACPI_ERR "hotkey_source_mask: failed to update the" | |
2806 | "firmware event mask!\n"); | |
2807 | ||
2808 | if (r_ev) | |
2809 | printk(TPACPI_NOTICE "hotkey_source_mask: " | |
2810 | "some important events were disabled: " | |
2811 | "0x%04x\n", r_ev); | |
2812 | ||
56e2c200 HMH |
2813 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2814 | ||
0d922e3b | 2815 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2816 | } |
2817 | ||
2818 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2819 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2820 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2821 | ||
2822 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2823 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2824 | struct device_attribute *attr, | |
2825 | char *buf) | |
2826 | { | |
2827 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2828 | } | |
2829 | ||
2830 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2831 | struct device_attribute *attr, | |
2832 | const char *buf, size_t count) | |
2833 | { | |
2834 | unsigned long t; | |
2835 | ||
2836 | if (parse_strtoul(buf, 25, &t)) | |
2837 | return -EINVAL; | |
2838 | ||
7646ea88 | 2839 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2840 | return -ERESTARTSYS; |
2841 | ||
db25f16d HMH |
2842 | hotkey_poll_set_freq(t); |
2843 | hotkey_poll_setup(true); | |
01e88f25 | 2844 | |
01e88f25 HMH |
2845 | mutex_unlock(&hotkey_mutex); |
2846 | ||
56e2c200 HMH |
2847 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2848 | ||
01e88f25 HMH |
2849 | return count; |
2850 | } | |
2851 | ||
2852 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2853 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2854 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2855 | ||
2856 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2857 | ||
50ebec09 | 2858 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2859 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2860 | struct device_attribute *attr, | |
2861 | char *buf) | |
2862 | { | |
19d337df JB |
2863 | int res; |
2864 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2865 | if (res < 0) |
2866 | return res; | |
2867 | ||
19d337df JB |
2868 | /* Opportunistic update */ |
2869 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2870 | ||
2871 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2872 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2873 | } |
2874 | ||
2875 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2876 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2877 | ||
50ebec09 HMH |
2878 | static void hotkey_radio_sw_notify_change(void) |
2879 | { | |
2880 | if (tp_features.hotkey_wlsw) | |
2881 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2882 | "hotkey_radio_sw"); | |
2883 | } | |
2884 | ||
6c231bd5 HMH |
2885 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2886 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2887 | struct device_attribute *attr, | |
2888 | char *buf) | |
2889 | { | |
2890 | int res, s; | |
2891 | res = hotkey_get_tablet_mode(&s); | |
2892 | if (res < 0) | |
2893 | return res; | |
2894 | ||
2895 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2896 | } | |
2897 | ||
2898 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2899 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2900 | ||
2901 | static void hotkey_tablet_mode_notify_change(void) | |
2902 | { | |
2903 | if (tp_features.hotkey_tablet) | |
2904 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2905 | "hotkey_tablet_mode"); | |
2906 | } | |
2907 | ||
ff80f137 HMH |
2908 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2909 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2910 | struct device_attribute *attr, | |
2911 | char *buf) | |
2912 | { | |
2913 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2914 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2915 | } | |
2916 | ||
2917 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2918 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2919 | ||
50ebec09 | 2920 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2921 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2922 | struct device_attribute *attr, | |
2923 | char *buf) | |
2924 | { | |
2925 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2926 | } | |
2927 | ||
2928 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2929 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2930 | ||
1d5a2b54 | 2931 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2932 | { |
0d922e3b HMH |
2933 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2934 | "wakeup_reason"); | |
50ebec09 HMH |
2935 | } |
2936 | ||
2937 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2938 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2939 | struct device_attribute *attr, | |
2940 | char *buf) | |
2941 | { | |
2942 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2943 | } | |
2944 | ||
2945 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2946 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2947 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2948 | ||
1d5a2b54 | 2949 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2950 | { |
0d922e3b HMH |
2951 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2952 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2953 | } |
2954 | ||
a0416420 HMH |
2955 | /* --------------------------------------------------------------------- */ |
2956 | ||
ff80f137 HMH |
2957 | static struct attribute *hotkey_attributes[] __initdata = { |
2958 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2959 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2960 | &dev_attr_hotkey_bios_mask.attr, |
ff80f137 | 2961 | &dev_attr_hotkey_report_mode.attr, |
0d922e3b HMH |
2962 | &dev_attr_hotkey_wakeup_reason.attr, |
2963 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2964 | &dev_attr_hotkey_mask.attr, |
2965 | &dev_attr_hotkey_all_mask.attr, | |
2966 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2967 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2968 | &dev_attr_hotkey_source_mask.attr, |
2969 | &dev_attr_hotkey_poll_freq.attr, | |
2970 | #endif | |
ff80f137 HMH |
2971 | }; |
2972 | ||
19d337df JB |
2973 | /* |
2974 | * Sync both the hw and sw blocking state of all switches | |
2975 | */ | |
733e27c1 HMH |
2976 | static void tpacpi_send_radiosw_update(void) |
2977 | { | |
2978 | int wlsw; | |
2979 | ||
19d337df JB |
2980 | /* |
2981 | * We must sync all rfkill controllers *before* issuing any | |
2982 | * rfkill input events, or we will race the rfkill core input | |
2983 | * handler. | |
2984 | * | |
c8440336 | 2985 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
2986 | * for the above. |
2987 | * | |
2988 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
2989 | */ | |
2990 | ||
2991 | wlsw = hotkey_get_wlsw(); | |
2992 | ||
2993 | /* Sync hw blocking state first if it is hw-blocked */ | |
2994 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
2995 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 2996 | |
19d337df JB |
2997 | /* Sync sw blocking state */ |
2998 | tpacpi_rfk_update_swstate_all(); | |
2999 | ||
3000 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3001 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3002 | tpacpi_rfk_update_hwblock_state(false); | |
3003 | ||
3004 | /* Issue rfkill input event for WLSW switch */ | |
3005 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3006 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3007 | ||
3008 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3009 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3010 | input_sync(tpacpi_inputdev); |
3011 | ||
3012 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3013 | } | |
19d337df JB |
3014 | |
3015 | /* | |
3016 | * this can be unconditional, as we will poll state again | |
3017 | * if userspace uses the notify to read data | |
3018 | */ | |
733e27c1 HMH |
3019 | hotkey_radio_sw_notify_change(); |
3020 | } | |
3021 | ||
9c0a76e1 HMH |
3022 | static void hotkey_exit(void) |
3023 | { | |
3024 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3025 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3026 | hotkey_poll_stop_sync(); |
db25f16d | 3027 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3028 | #endif |
3029 | ||
3030 | if (hotkey_dev_attributes) | |
3031 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3032 | ||
3033 | kfree(hotkey_keycode_map); | |
3034 | ||
4be73005 | 3035 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3036 | "restoring original HKEY status and mask\n"); |
3037 | /* yes, there is a bitwise or below, we want the | |
3038 | * functions to be called even if one of them fail */ | |
3039 | if (((tp_features.hotkey_mask && | |
3040 | hotkey_mask_set(hotkey_orig_mask)) | | |
3041 | hotkey_status_set(false)) != 0) | |
4be73005 HMH |
3042 | printk(TPACPI_ERR |
3043 | "failed to restore hot key mask " | |
3044 | "to BIOS defaults\n"); | |
9c0a76e1 HMH |
3045 | } |
3046 | ||
de4c8cc7 HMH |
3047 | static void __init hotkey_unmap(const unsigned int scancode) |
3048 | { | |
3049 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3050 | clear_bit(hotkey_keycode_map[scancode], | |
3051 | tpacpi_inputdev->keybit); | |
3052 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3053 | } | |
3054 | } | |
3055 | ||
0d922e3b HMH |
3056 | /* |
3057 | * HKEY quirks: | |
3058 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3059 | */ | |
3060 | ||
3061 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3062 | ||
3063 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3064 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3065 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3066 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3067 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3068 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3069 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3070 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3071 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3072 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3073 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3074 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3075 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3076 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3077 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3078 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3079 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3080 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3081 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3082 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3083 | }; | |
3084 | ||
fc6e7568 HMH |
3085 | typedef u16 tpacpi_keymap_entry_t; |
3086 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3087 | |
a5763f22 | 3088 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3089 | { |
0f089147 HMH |
3090 | /* Requirements for changing the default keymaps: |
3091 | * | |
3092 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3093 | * good reasons. Do not change them unless you have deep | |
3094 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3095 | * the various ThinkPad models. The driver behaves | |
3096 | * differently for KEY_RESERVED: such keys have their | |
3097 | * hot key mask *unset* in mask_recommended, and also | |
3098 | * in the initial hot key mask programmed into the | |
3099 | * firmware at driver load time, which means the firm- | |
3100 | * ware may react very differently if you change them to | |
3101 | * something else; | |
3102 | * | |
3103 | * 2. You must be subscribed to the linux-thinkpad and | |
3104 | * ibm-acpi-devel mailing lists, and you should read the | |
3105 | * list archives since 2007 if you want to change the | |
3106 | * keymaps. This requirement exists so that you will | |
3107 | * know the past history of problems with the thinkpad- | |
3108 | * acpi driver keymaps, and also that you will be | |
3109 | * listening to any bug reports; | |
3110 | * | |
3111 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3112 | * for merging, *ever*. Send them to the linux-acpi | |
3113 | * mailinglist for comments. Merging is to be done only | |
3114 | * through acpi-test and the ACPI maintainer. | |
3115 | * | |
3116 | * If the above is too much to ask, don't change the keymap. | |
3117 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3118 | */ | |
d1e14dca HMH |
3119 | |
3120 | enum keymap_index { | |
3121 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3122 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3123 | }; | |
3124 | ||
3125 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3126 | /* Generic keymap for IBM ThinkPads */ | |
3127 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3128 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3129 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3130 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3131 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3132 | |
3133 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3134 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3135 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3136 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3137 | |
0d922e3b | 3138 | /* brightness: firmware always reacts to them */ |
e927c08d | 3139 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3140 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3141 | |
3142 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3143 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3144 | |
edf0e0e5 HMH |
3145 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3146 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3147 | |
3148 | /* Volume: firmware always react to it and reprograms | |
3149 | * the built-in *extra* mixer. Never map it to control | |
3150 | * another mixer by default. */ | |
e927c08d HMH |
3151 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3152 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3153 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3154 | |
edf0e0e5 | 3155 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3156 | |
edf0e0e5 HMH |
3157 | /* (assignments unknown, please report if found) */ |
3158 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3159 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
d1e14dca HMH |
3160 | }, |
3161 | ||
3162 | /* Generic keymap for Lenovo ThinkPads */ | |
3163 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3164 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3165 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3166 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3167 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3168 | |
3169 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3170 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3171 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3172 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3173 | |
de4c8cc7 HMH |
3174 | /* These should be enabled --only-- when ACPI video |
3175 | * is disabled (i.e. in "vendor" mode), and are handled | |
3176 | * in a special way by the init code */ | |
3177 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3178 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3179 | |
edf0e0e5 | 3180 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3181 | |
edf0e0e5 HMH |
3182 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3183 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3184 | |
3185 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3186 | * react to it and reprograms the built-in *extra* mixer. | |
3187 | * Never map it to control another mixer by default. | |
3188 | * | |
3189 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3190 | * these over the regular keyboard, so these are no-ops, | |
3191 | * but there are still weird bugs re. MUTE, so do not | |
3192 | * change unless you get test reports from all Lenovo | |
3193 | * models. May cause the BIOS to interfere with the | |
3194 | * HDA mixer. | |
3195 | */ | |
e927c08d HMH |
3196 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3197 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3198 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3199 | |
edf0e0e5 | 3200 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3201 | |
edf0e0e5 HMH |
3202 | /* (assignments unknown, please report if found) */ |
3203 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3204 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
d1e14dca | 3205 | }, |
edf0e0e5 HMH |
3206 | }; |
3207 | ||
d1e14dca HMH |
3208 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3209 | /* Generic maps (fallback) */ | |
3210 | { | |
3211 | .vendor = PCI_VENDOR_ID_IBM, | |
3212 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3213 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3214 | }, | |
3215 | { | |
3216 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3217 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3218 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3219 | }, | |
3220 | }; | |
3221 | ||
3222 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3223 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3224 | |
6a38abbf | 3225 | int res, i; |
74941a69 | 3226 | int status; |
1b6521dc | 3227 | int hkeyv; |
d89a727a HMH |
3228 | bool radiosw_state = false; |
3229 | bool tabletsw_state = false; | |
b86c4722 | 3230 | |
0d922e3b | 3231 | unsigned long quirks; |
d1e14dca | 3232 | unsigned long keymap_id; |
0d922e3b | 3233 | |
56e2c200 HMH |
3234 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3235 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3236 | |
6a38abbf | 3237 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3238 | BUG_ON(tpacpi_inputdev->open != NULL || |
3239 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3240 | |
e0c7dfe7 | 3241 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3242 | mutex_init(&hotkey_mutex); |
5fba344c | 3243 | |
01e88f25 HMH |
3244 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
3245 | mutex_init(&hotkey_thread_mutex); | |
3246 | mutex_init(&hotkey_thread_data_mutex); | |
3247 | #endif | |
3248 | ||
56b6aeb0 | 3249 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3250 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3251 | |
56e2c200 HMH |
3252 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3253 | "hotkeys are %s\n", | |
d8fd94d9 | 3254 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3255 | |
9c0a76e1 HMH |
3256 | if (!tp_features.hotkey) |
3257 | return 1; | |
a0416420 | 3258 | |
0d922e3b HMH |
3259 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3260 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3261 | ||
d64c81c4 HMH |
3262 | tpacpi_disable_brightness_delay(); |
3263 | ||
0d922e3b HMH |
3264 | /* MUST have enough space for all attributes to be added to |
3265 | * hotkey_dev_attributes */ | |
3266 | hotkey_dev_attributes = create_attr_set( | |
3267 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3268 | NULL); | |
9c0a76e1 HMH |
3269 | if (!hotkey_dev_attributes) |
3270 | return -ENOMEM; | |
3271 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3272 | hotkey_attributes, | |
3273 | ARRAY_SIZE(hotkey_attributes)); | |
3274 | if (res) | |
3275 | goto err_exit; | |
3276 | ||
0d922e3b | 3277 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3278 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3279 | for HKEY interface version 0x100 */ | |
3280 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3281 | if ((hkeyv >> 8) != 1) { | |
3282 | printk(TPACPI_ERR "unknown version of the " | |
3283 | "HKEY interface: 0x%x\n", hkeyv); | |
3284 | printk(TPACPI_ERR "please report this to %s\n", | |
3285 | TPACPI_MAIL); | |
3286 | } else { | |
3287 | /* | |
3288 | * MHKV 0x100 in A31, R40, R40e, | |
3289 | * T4x, X31, and later | |
3290 | */ | |
56e2c200 HMH |
3291 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3292 | "firmware HKEY interface version: 0x%x\n", | |
3293 | hkeyv); | |
0d922e3b HMH |
3294 | |
3295 | /* Paranoia check AND init hotkey_all_mask */ | |
3296 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3297 | "MHKA", "qd")) { | |
3298 | printk(TPACPI_ERR | |
3299 | "missing MHKA handler, " | |
3300 | "please report this to %s\n", | |
3301 | TPACPI_MAIL); | |
3302 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3303 | hotkey_all_mask = 0x080cU; | |
3304 | } else { | |
3305 | tp_features.hotkey_mask = 1; | |
3306 | } | |
1b6521dc | 3307 | } |
9c0a76e1 | 3308 | } |
56b6aeb0 | 3309 | |
56e2c200 HMH |
3310 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3311 | "hotkey masks are %s\n", | |
9c0a76e1 | 3312 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3313 | |
0d922e3b HMH |
3314 | /* Init hotkey_all_mask if not initialized yet */ |
3315 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3316 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3317 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3318 | |
0d922e3b | 3319 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3320 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3321 | /* hotkey_source_mask *must* be zero for |
3322 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3323 | res = hotkey_mask_get(); |
3324 | if (res) | |
3325 | goto err_exit; | |
3326 | ||
0d922e3b HMH |
3327 | hotkey_orig_mask = hotkey_acpi_mask; |
3328 | } else { | |
3329 | hotkey_orig_mask = hotkey_all_mask; | |
3330 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3331 | } |
74941a69 | 3332 | |
a73f3091 HMH |
3333 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3334 | if (dbg_wlswemul) { | |
3335 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3336 | radiosw_state = !!tpacpi_wlsw_emulstate; |
a73f3091 HMH |
3337 | printk(TPACPI_INFO |
3338 | "radio switch emulation enabled\n"); | |
3339 | } else | |
3340 | #endif | |
9c0a76e1 HMH |
3341 | /* Not all thinkpads have a hardware radio switch */ |
3342 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3343 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3344 | radiosw_state = !!status; |
9c0a76e1 HMH |
3345 | printk(TPACPI_INFO |
3346 | "radio switch found; radios are %s\n", | |
3347 | enabled(status, 0)); | |
3a872080 HMH |
3348 | } |
3349 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3350 | res = add_to_attr_set(hotkey_dev_attributes, |
3351 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3352 | |
9c0a76e1 HMH |
3353 | /* For X41t, X60t, X61t Tablets... */ |
3354 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3355 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3356 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
9c0a76e1 HMH |
3357 | printk(TPACPI_INFO |
3358 | "possible tablet mode switch found; " | |
3359 | "ThinkPad in %s mode\n", | |
d89a727a | 3360 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3361 | res = add_to_attr_set(hotkey_dev_attributes, |
3362 | &dev_attr_hotkey_tablet_mode.attr); | |
3363 | } | |
6c231bd5 | 3364 | |
9c0a76e1 HMH |
3365 | if (!res) |
3366 | res = register_attr_set_with_sysfs( | |
3367 | hotkey_dev_attributes, | |
3368 | &tpacpi_pdev->dev.kobj); | |
3369 | if (res) | |
3370 | goto err_exit; | |
6a38abbf | 3371 | |
9c0a76e1 | 3372 | /* Set up key map */ |
9c0a76e1 HMH |
3373 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3374 | GFP_KERNEL); | |
3375 | if (!hotkey_keycode_map) { | |
3376 | printk(TPACPI_ERR | |
3377 | "failed to allocate memory for key map\n"); | |
3378 | res = -ENOMEM; | |
3379 | goto err_exit; | |
3380 | } | |
edf0e0e5 | 3381 | |
d1e14dca HMH |
3382 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3383 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3384 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3385 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3386 | "using keymap number %lu\n", keymap_id); | |
3387 | ||
3388 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3389 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3390 | |
792979c8 | 3391 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3392 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3393 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3394 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3395 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3396 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3397 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3398 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3399 | } else { |
3400 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3401 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3402 | } |
9c0a76e1 | 3403 | } |
6a38abbf | 3404 | |
9c0a76e1 | 3405 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3406 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3407 | input_report_switch(tpacpi_inputdev, |
3408 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3409 | } |
3410 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3411 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3412 | input_report_switch(tpacpi_inputdev, |
3413 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3414 | } |
5c29d58f | 3415 | |
9c0a76e1 | 3416 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3417 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3418 | * been called before this point */ | |
8bf3d4c5 | 3419 | if (tp_features.bright_acpimode && acpi_video_backlight_support()) { |
9c0a76e1 HMH |
3420 | printk(TPACPI_INFO |
3421 | "This ThinkPad has standard ACPI backlight " | |
3422 | "brightness control, supported by the ACPI " | |
3423 | "video driver\n"); | |
3424 | printk(TPACPI_NOTICE | |
3425 | "Disabling thinkpad-acpi brightness events " | |
3426 | "by default...\n"); | |
3427 | ||
de4c8cc7 HMH |
3428 | /* Disable brightness up/down on Lenovo thinkpads when |
3429 | * ACPI is handling them, otherwise it is plain impossible | |
3430 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3431 | hotkey_reserved_mask |= |
3432 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3433 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3434 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3435 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3436 | } |
ff80f137 | 3437 | |
230d8cf2 | 3438 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3439 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3440 | & ~hotkey_all_mask | |
3441 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3442 | |
3443 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3444 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3445 | hotkey_source_mask, hotkey_poll_freq); | |
3446 | #endif | |
3447 | ||
56e2c200 HMH |
3448 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3449 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3450 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3451 | if (res) { |
3452 | hotkey_exit(); | |
3453 | return res; | |
3454 | } | |
0d922e3b HMH |
3455 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3456 | | hotkey_driver_mask) | |
3457 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3458 | if (res < 0 && res != -ENXIO) { |
3459 | hotkey_exit(); | |
3460 | return res; | |
3461 | } | |
0d922e3b HMH |
3462 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3463 | & ~hotkey_reserved_mask; | |
3464 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3465 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3466 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3467 | |
56e2c200 HMH |
3468 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3469 | "legacy ibm/hotkey event reporting over procfs %s\n", | |
9c0a76e1 HMH |
3470 | (hotkey_report_mode < 2) ? |
3471 | "enabled" : "disabled"); | |
01e88f25 | 3472 | |
9c0a76e1 HMH |
3473 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3474 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3475 | |
db25f16d | 3476 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3477 | |
9c0a76e1 | 3478 | return 0; |
01e88f25 | 3479 | |
9c0a76e1 HMH |
3480 | err_exit: |
3481 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3482 | hotkey_dev_attributes = NULL; | |
a0416420 | 3483 | |
9c0a76e1 | 3484 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
3485 | } |
3486 | ||
3827e7a3 HMH |
3487 | static bool hotkey_notify_hotkey(const u32 hkey, |
3488 | bool *send_acpi_ev, | |
3489 | bool *ignore_acpi_ev) | |
3490 | { | |
3491 | /* 0x1000-0x1FFF: key presses */ | |
3492 | unsigned int scancode = hkey & 0xfff; | |
3493 | *send_acpi_ev = true; | |
3494 | *ignore_acpi_ev = false; | |
3495 | ||
34a656d2 HMH |
3496 | /* HKEY event 0x1001 is scancode 0x00 */ |
3497 | if (scancode > 0 && scancode <= TPACPI_HOTKEY_MAP_LEN) { | |
3827e7a3 HMH |
3498 | scancode--; |
3499 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3500 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3501 | *send_acpi_ev = false; |
3502 | } else { | |
3503 | *ignore_acpi_ev = true; | |
3504 | } | |
3505 | return true; | |
3506 | } | |
3507 | return false; | |
3508 | } | |
3509 | ||
3510 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3511 | bool *send_acpi_ev, | |
3512 | bool *ignore_acpi_ev) | |
3513 | { | |
3514 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3515 | *send_acpi_ev = true; | |
3516 | *ignore_acpi_ev = false; | |
3517 | ||
3518 | switch (hkey) { | |
67bcae6e HMH |
3519 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3520 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3521 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3522 | *ignore_acpi_ev = true; | |
3523 | break; | |
3524 | ||
67bcae6e HMH |
3525 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3526 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3527 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3528 | *ignore_acpi_ev = true; | |
3529 | break; | |
3530 | ||
67bcae6e HMH |
3531 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3532 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
106b4e66 HMH |
3533 | printk(TPACPI_ALERT |
3534 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
3535 | /* how to auto-heal: */ | |
3536 | /* 2313: woke up from S3, go to S4/S5 */ | |
3537 | /* 2413: woke up from S4, go to S5 */ | |
3538 | break; | |
3539 | ||
3827e7a3 HMH |
3540 | default: |
3541 | return false; | |
3542 | } | |
3543 | ||
3544 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
3545 | printk(TPACPI_INFO | |
3546 | "woke up due to a hot-unplug " | |
3547 | "request...\n"); | |
3548 | hotkey_wakeup_reason_notify_change(); | |
3549 | } | |
3550 | return true; | |
3551 | } | |
3552 | ||
3553 | static bool hotkey_notify_usrevent(const u32 hkey, | |
3554 | bool *send_acpi_ev, | |
3555 | bool *ignore_acpi_ev) | |
3556 | { | |
3557 | /* 0x5000-0x5FFF: human interface helpers */ | |
3558 | *send_acpi_ev = true; | |
3559 | *ignore_acpi_ev = false; | |
3560 | ||
3561 | switch (hkey) { | |
67bcae6e HMH |
3562 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3563 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3564 | return true; |
3565 | ||
67bcae6e HMH |
3566 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3567 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3568 | tpacpi_input_send_tabletsw(); |
3569 | hotkey_tablet_mode_notify_change(); | |
3570 | *send_acpi_ev = false; | |
3571 | return true; | |
3572 | ||
67bcae6e HMH |
3573 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3574 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3575 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3576 | /* do not propagate these events */ |
3827e7a3 HMH |
3577 | *ignore_acpi_ev = true; |
3578 | return true; | |
3579 | ||
3580 | default: | |
3581 | return false; | |
3582 | } | |
3583 | } | |
3584 | ||
9ebd9e83 HMH |
3585 | static void thermal_dump_all_sensors(void); |
3586 | ||
106b4e66 HMH |
3587 | static bool hotkey_notify_thermal(const u32 hkey, |
3588 | bool *send_acpi_ev, | |
3589 | bool *ignore_acpi_ev) | |
3590 | { | |
9ebd9e83 HMH |
3591 | bool known = true; |
3592 | ||
106b4e66 HMH |
3593 | /* 0x6000-0x6FFF: thermal alarms */ |
3594 | *send_acpi_ev = true; | |
3595 | *ignore_acpi_ev = false; | |
3596 | ||
3597 | switch (hkey) { | |
9ebd9e83 HMH |
3598 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
3599 | printk(TPACPI_INFO | |
3600 | "EC reports that Thermal Table has changed\n"); | |
3601 | /* recommended action: do nothing, we don't have | |
3602 | * Lenovo ATM information */ | |
3603 | return true; | |
67bcae6e | 3604 | case TP_HKEY_EV_ALARM_BAT_HOT: |
106b4e66 HMH |
3605 | printk(TPACPI_CRIT |
3606 | "THERMAL ALARM: battery is too hot!\n"); | |
3607 | /* recommended action: warn user through gui */ | |
9ebd9e83 | 3608 | break; |
67bcae6e | 3609 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
106b4e66 HMH |
3610 | printk(TPACPI_ALERT |
3611 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
3612 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3613 | break; |
67bcae6e | 3614 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
106b4e66 HMH |
3615 | printk(TPACPI_CRIT |
3616 | "THERMAL ALARM: " | |
3617 | "a sensor reports something is too hot!\n"); | |
3618 | /* recommended action: warn user through gui, that */ | |
3619 | /* some internal component is too hot */ | |
9ebd9e83 | 3620 | break; |
67bcae6e | 3621 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
106b4e66 HMH |
3622 | printk(TPACPI_ALERT |
3623 | "THERMAL EMERGENCY: " | |
3624 | "a sensor reports something is extremely hot!\n"); | |
3625 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3626 | break; |
106b4e66 HMH |
3627 | default: |
3628 | printk(TPACPI_ALERT | |
3629 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
9ebd9e83 | 3630 | known = false; |
106b4e66 | 3631 | } |
9ebd9e83 HMH |
3632 | |
3633 | thermal_dump_all_sensors(); | |
3634 | ||
3635 | return known; | |
106b4e66 HMH |
3636 | } |
3637 | ||
56b6aeb0 HMH |
3638 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3639 | { | |
6a38abbf | 3640 | u32 hkey; |
3827e7a3 HMH |
3641 | bool send_acpi_ev; |
3642 | bool ignore_acpi_ev; | |
3643 | bool known_ev; | |
3eea123d HMH |
3644 | |
3645 | if (event != 0x80) { | |
35ff8b9f HMH |
3646 | printk(TPACPI_ERR |
3647 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 3648 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3649 | acpi_bus_generate_netlink_event( |
3650 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3651 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3652 | event, 0); |
3eea123d HMH |
3653 | return; |
3654 | } | |
3655 | ||
3656 | while (1) { | |
3657 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 3658 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
3659 | return; |
3660 | } | |
3661 | ||
3662 | if (hkey == 0) { | |
3663 | /* queue empty */ | |
3664 | return; | |
3665 | } | |
3666 | ||
3827e7a3 HMH |
3667 | send_acpi_ev = true; |
3668 | ignore_acpi_ev = false; | |
56b6aeb0 | 3669 | |
ff80f137 HMH |
3670 | switch (hkey >> 12) { |
3671 | case 1: | |
3672 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3673 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3674 | &ignore_acpi_ev); | |
ff80f137 | 3675 | break; |
a713b4d7 | 3676 | case 2: |
3827e7a3 HMH |
3677 | /* 0x2000-0x2FFF: Wakeup reason */ |
3678 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3679 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3680 | break; |
3681 | case 3: | |
3827e7a3 | 3682 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
3683 | switch (hkey) { |
3684 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 HMH |
3685 | hotkey_autosleep_ack = 1; |
3686 | printk(TPACPI_INFO | |
3687 | "bay ejected\n"); | |
50ebec09 | 3688 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3689 | known_ev = true; |
bf8b29c8 HMH |
3690 | break; |
3691 | case TP_HKEY_EV_OPTDRV_EJ: | |
3692 | /* FIXME: kick libata if SATA link offline */ | |
3693 | known_ev = true; | |
3694 | break; | |
3695 | default: | |
3827e7a3 | 3696 | known_ev = false; |
a713b4d7 HMH |
3697 | } |
3698 | break; | |
3699 | case 4: | |
3827e7a3 | 3700 | /* 0x4000-0x4FFF: dock-related wakeups */ |
67bcae6e | 3701 | if (hkey == TP_HKEY_EV_UNDOCK_ACK) { |
a713b4d7 HMH |
3702 | hotkey_autosleep_ack = 1; |
3703 | printk(TPACPI_INFO | |
3704 | "undocked\n"); | |
50ebec09 | 3705 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3706 | known_ev = true; |
a713b4d7 | 3707 | } else { |
3827e7a3 | 3708 | known_ev = false; |
a713b4d7 HMH |
3709 | } |
3710 | break; | |
ff80f137 | 3711 | case 5: |
d1edb2b5 | 3712 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3713 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3714 | &ignore_acpi_ev); | |
ff80f137 | 3715 | break; |
106b4e66 HMH |
3716 | case 6: |
3717 | /* 0x6000-0x6FFF: thermal alarms */ | |
3718 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
3719 | &ignore_acpi_ev); | |
3720 | break; | |
ff80f137 HMH |
3721 | case 7: |
3722 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3723 | if (tp_features.hotkey_wlsw && |
3724 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3725 | tpacpi_send_radiosw_update(); |
3b64b51d | 3726 | send_acpi_ev = 0; |
3827e7a3 | 3727 | known_ev = true; |
6a38abbf | 3728 | break; |
6a38abbf | 3729 | } |
ff80f137 HMH |
3730 | /* fallthrough to default */ |
3731 | default: | |
3827e7a3 | 3732 | known_ev = false; |
3b64b51d | 3733 | } |
3827e7a3 | 3734 | if (!known_ev) { |
35ff8b9f HMH |
3735 | printk(TPACPI_NOTICE |
3736 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
3737 | printk(TPACPI_NOTICE |
3738 | "please report the conditions when this " | |
3739 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3740 | } |
ff80f137 | 3741 | |
3eea123d | 3742 | /* Legacy events */ |
35ff8b9f HMH |
3743 | if (!ignore_acpi_ev && |
3744 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
3745 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
3746 | event, hkey); | |
3e5ce914 | 3747 | } |
ff80f137 | 3748 | |
3eea123d | 3749 | /* netlink events */ |
3e5ce914 | 3750 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3751 | acpi_bus_generate_netlink_event( |
3752 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3753 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3754 | event, hkey); |
3eea123d | 3755 | } |
56b6aeb0 HMH |
3756 | } |
3757 | } | |
3758 | ||
a713b4d7 HMH |
3759 | static void hotkey_suspend(pm_message_t state) |
3760 | { | |
3761 | /* Do these on suspend, we get the events on early resume! */ | |
3762 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3763 | hotkey_autosleep_ack = 0; | |
3764 | } | |
3765 | ||
5c29d58f HMH |
3766 | static void hotkey_resume(void) |
3767 | { | |
d64c81c4 HMH |
3768 | tpacpi_disable_brightness_delay(); |
3769 | ||
0d922e3b HMH |
3770 | if (hotkey_status_set(true) < 0 || |
3771 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
35ff8b9f | 3772 | printk(TPACPI_ERR |
0d922e3b HMH |
3773 | "error while attempting to reset the event " |
3774 | "firmware interface\n"); | |
3775 | ||
733e27c1 | 3776 | tpacpi_send_radiosw_update(); |
6c231bd5 | 3777 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
3778 | hotkey_wakeup_reason_notify_change(); |
3779 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 3780 | hotkey_poll_setup_safe(false); |
5c29d58f HMH |
3781 | } |
3782 | ||
a0416420 | 3783 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 3784 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 3785 | { |
ae92bd17 | 3786 | int res, status; |
1da177e4 | 3787 | |
d8fd94d9 | 3788 | if (!tp_features.hotkey) { |
887965e6 AD |
3789 | seq_printf(m, "status:\t\tnot supported\n"); |
3790 | return 0; | |
78f81cc4 BD |
3791 | } |
3792 | ||
7646ea88 | 3793 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3794 | return -ERESTARTSYS; |
b2c985e7 HMH |
3795 | res = hotkey_status_get(&status); |
3796 | if (!res) | |
3797 | res = hotkey_mask_get(); | |
40ca9fdf | 3798 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
3799 | if (res) |
3800 | return res; | |
1da177e4 | 3801 | |
887965e6 | 3802 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 3803 | if (hotkey_all_mask) { |
887965e6 AD |
3804 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
3805 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 3806 | } else { |
887965e6 AD |
3807 | seq_printf(m, "mask:\t\tnot supported\n"); |
3808 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
3809 | } |
3810 | ||
887965e6 | 3811 | return 0; |
1da177e4 LT |
3812 | } |
3813 | ||
406e988b | 3814 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
3815 | { |
3816 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b HMH |
3817 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
3818 | TPACPI_WARN | |
3819 | "hotkey enable/disable functionality has been " | |
3820 | "removed from the driver. Hotkeys are always " | |
3821 | "enabled\n")) | |
3822 | printk(TPACPI_ERR | |
3823 | "Please remove the hotkey=enable module " | |
3824 | "parameter, it is deprecated. Hotkeys are always " | |
3825 | "enabled\n"); | |
2586d566 HMH |
3826 | } |
3827 | ||
78f81cc4 | 3828 | static int hotkey_write(char *buf) |
1da177e4 | 3829 | { |
2586d566 | 3830 | int res; |
ae92bd17 | 3831 | u32 mask; |
1da177e4 | 3832 | char *cmd; |
1da177e4 | 3833 | |
d8fd94d9 | 3834 | if (!tp_features.hotkey) |
1da177e4 LT |
3835 | return -ENODEV; |
3836 | ||
7646ea88 | 3837 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3838 | return -ERESTARTSYS; |
40ca9fdf | 3839 | |
0d922e3b | 3840 | mask = hotkey_user_mask; |
78f81cc4 | 3841 | |
40ca9fdf | 3842 | res = 0; |
1da177e4 LT |
3843 | while ((cmd = next_cmd(&buf))) { |
3844 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 3845 | hotkey_enabledisable_warn(1); |
1da177e4 | 3846 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 3847 | hotkey_enabledisable_warn(0); |
2586d566 | 3848 | res = -EPERM; |
1da177e4 | 3849 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
3850 | mask = (hotkey_all_mask | hotkey_source_mask) |
3851 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
3852 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
3853 | /* mask set */ | |
3854 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
3855 | /* mask set */ | |
40ca9fdf HMH |
3856 | } else { |
3857 | res = -EINVAL; | |
3858 | goto errexit; | |
3859 | } | |
1da177e4 | 3860 | } |
56e2c200 | 3861 | |
0d922e3b | 3862 | if (!res) { |
56e2c200 HMH |
3863 | tpacpi_disclose_usertask("procfs hotkey", |
3864 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
3865 | res = hotkey_user_mask_set(mask); |
3866 | } | |
1da177e4 | 3867 | |
40ca9fdf HMH |
3868 | errexit: |
3869 | mutex_unlock(&hotkey_mutex); | |
3870 | return res; | |
78f81cc4 | 3871 | } |
1da177e4 | 3872 | |
1ba90e3a | 3873 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
3874 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
3875 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
1ba90e3a TR |
3876 | {"", 0}, |
3877 | }; | |
3878 | ||
8d376cd6 | 3879 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 3880 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
3881 | .notify = hotkey_notify, |
3882 | .handle = &hkey_handle, | |
3883 | .type = ACPI_DEVICE_NOTIFY, | |
3884 | }; | |
3885 | ||
a5763f22 HMH |
3886 | static struct ibm_struct hotkey_driver_data = { |
3887 | .name = "hotkey", | |
a5763f22 HMH |
3888 | .read = hotkey_read, |
3889 | .write = hotkey_write, | |
3890 | .exit = hotkey_exit, | |
5c29d58f | 3891 | .resume = hotkey_resume, |
a713b4d7 | 3892 | .suspend = hotkey_suspend, |
8d376cd6 | 3893 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
3894 | }; |
3895 | ||
56b6aeb0 HMH |
3896 | /************************************************************************* |
3897 | * Bluetooth subdriver | |
3898 | */ | |
1da177e4 | 3899 | |
f74a27d4 HMH |
3900 | enum { |
3901 | /* ACPI GBDC/SBDC bits */ | |
3902 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
3903 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 3904 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 3905 | 0 = disable, 1 = enable */ |
153f8220 HMH |
3906 | }; |
3907 | ||
3908 | enum { | |
3909 | /* ACPI \BLTH commands */ | |
3910 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
3911 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
3912 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
3913 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
3914 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
3915 | }; |
3916 | ||
bee4cd9b HMH |
3917 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
3918 | ||
19d337df | 3919 | static int bluetooth_get_status(void) |
07431ec8 HMH |
3920 | { |
3921 | int status; | |
3922 | ||
a73f3091 HMH |
3923 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3924 | if (dbg_bluetoothemul) | |
3925 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 3926 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
3927 | #endif |
3928 | ||
07431ec8 HMH |
3929 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3930 | return -EIO; | |
3931 | ||
0e74dc26 | 3932 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 3933 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
3934 | } |
3935 | ||
19d337df | 3936 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
3937 | { |
3938 | int status; | |
3939 | ||
bee4cd9b | 3940 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
3941 | "will attempt to %s bluetooth\n", |
3942 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 3943 | |
a73f3091 HMH |
3944 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3945 | if (dbg_bluetoothemul) { | |
19d337df | 3946 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
3947 | return 0; |
3948 | } | |
3949 | #endif | |
3950 | ||
19d337df | 3951 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
3952 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
3953 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
3954 | else | |
3955 | status = 0; | |
19d337df | 3956 | |
07431ec8 HMH |
3957 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3958 | return -EIO; | |
3959 | ||
3960 | return 0; | |
3961 | } | |
f74a27d4 | 3962 | |
d3a6ade4 HMH |
3963 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3964 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3965 | struct device_attribute *attr, | |
3966 | char *buf) | |
3967 | { | |
19d337df JB |
3968 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
3969 | attr, buf); | |
d3a6ade4 HMH |
3970 | } |
3971 | ||
3972 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3973 | struct device_attribute *attr, | |
3974 | const char *buf, size_t count) | |
3975 | { | |
19d337df JB |
3976 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
3977 | attr, buf, count); | |
d3a6ade4 HMH |
3978 | } |
3979 | ||
3980 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3981 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3982 | bluetooth_enable_show, bluetooth_enable_store); |
3983 | ||
3984 | /* --------------------------------------------------------------------- */ | |
3985 | ||
3986 | static struct attribute *bluetooth_attributes[] = { | |
3987 | &dev_attr_bluetooth_enable.attr, | |
3988 | NULL | |
3989 | }; | |
3990 | ||
3991 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3992 | .attrs = bluetooth_attributes, |
3993 | }; | |
3994 | ||
19d337df JB |
3995 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
3996 | .get_status = bluetooth_get_status, | |
3997 | .set_status = bluetooth_set_status, | |
3998 | }; | |
0e74dc26 | 3999 | |
90d9d3c7 HMH |
4000 | static void bluetooth_shutdown(void) |
4001 | { | |
4002 | /* Order firmware to save current state to NVRAM */ | |
4003 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4004 | TP_ACPI_BLTH_SAVE_STATE)) | |
4005 | printk(TPACPI_NOTICE | |
4006 | "failed to save bluetooth state to NVRAM\n"); | |
bee4cd9b HMH |
4007 | else |
4008 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4009 | "bluestooth state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4010 | } |
4011 | ||
07431ec8 HMH |
4012 | static void bluetooth_exit(void) |
4013 | { | |
4014 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4015 | &bluetooth_attr_group); | |
19d337df JB |
4016 | |
4017 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4018 | ||
4019 | bluetooth_shutdown(); | |
07431ec8 HMH |
4020 | } |
4021 | ||
a5763f22 | 4022 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4023 | { |
d3a6ade4 | 4024 | int res; |
d6fdd1e9 HMH |
4025 | int status = 0; |
4026 | ||
bee4cd9b HMH |
4027 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4028 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4029 | |
e0c7dfe7 | 4030 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4031 | |
78f81cc4 BD |
4032 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4033 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4034 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4035 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4036 | ||
bee4cd9b HMH |
4037 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4038 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4039 | str_supported(tp_features.bluetooth), |
4040 | status); | |
4041 | ||
a73f3091 HMH |
4042 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4043 | if (dbg_bluetoothemul) { | |
4044 | tp_features.bluetooth = 1; | |
4045 | printk(TPACPI_INFO | |
4046 | "bluetooth switch emulation enabled\n"); | |
4047 | } else | |
4048 | #endif | |
3a872080 HMH |
4049 | if (tp_features.bluetooth && |
4050 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4051 | /* no bluetooth hardware present in system */ | |
4052 | tp_features.bluetooth = 0; | |
bee4cd9b | 4053 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4054 | "bluetooth hardware not installed\n"); |
4055 | } | |
4056 | ||
0e74dc26 HMH |
4057 | if (!tp_features.bluetooth) |
4058 | return 1; | |
4059 | ||
0e74dc26 | 4060 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4061 | &bluetooth_tprfk_ops, |
0e74dc26 | 4062 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4063 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4064 | true); |
4065 | if (res) | |
4066 | return res; | |
4067 | ||
4068 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4069 | &bluetooth_attr_group); | |
0e74dc26 | 4070 | if (res) { |
19d337df | 4071 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4072 | return res; |
d6fdd1e9 | 4073 | } |
fe08bc4b | 4074 | |
0e74dc26 | 4075 | return 0; |
1da177e4 LT |
4076 | } |
4077 | ||
d3a6ade4 | 4078 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4079 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4080 | { |
887965e6 | 4081 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4082 | } |
4083 | ||
78f81cc4 | 4084 | static int bluetooth_write(char *buf) |
1da177e4 | 4085 | { |
19d337df | 4086 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4087 | } |
4088 | ||
a5763f22 HMH |
4089 | static struct ibm_struct bluetooth_driver_data = { |
4090 | .name = "bluetooth", | |
4091 | .read = bluetooth_read, | |
4092 | .write = bluetooth_write, | |
d3a6ade4 | 4093 | .exit = bluetooth_exit, |
90d9d3c7 | 4094 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4095 | }; |
4096 | ||
56b6aeb0 HMH |
4097 | /************************************************************************* |
4098 | * Wan subdriver | |
4099 | */ | |
4100 | ||
f74a27d4 HMH |
4101 | enum { |
4102 | /* ACPI GWAN/SWAN bits */ | |
4103 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4104 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4105 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4106 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4107 | }; |
4108 | ||
bee4cd9b HMH |
4109 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4110 | ||
19d337df | 4111 | static int wan_get_status(void) |
07431ec8 HMH |
4112 | { |
4113 | int status; | |
4114 | ||
a73f3091 HMH |
4115 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4116 | if (dbg_wwanemul) | |
4117 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4118 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4119 | #endif |
4120 | ||
07431ec8 HMH |
4121 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4122 | return -EIO; | |
4123 | ||
0e74dc26 | 4124 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4125 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4126 | } |
4127 | ||
19d337df | 4128 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4129 | { |
4130 | int status; | |
4131 | ||
bee4cd9b | 4132 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4133 | "will attempt to %s wwan\n", |
4134 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4135 | |
a73f3091 HMH |
4136 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4137 | if (dbg_wwanemul) { | |
19d337df | 4138 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4139 | return 0; |
4140 | } | |
4141 | #endif | |
4142 | ||
19d337df | 4143 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4144 | status = TP_ACPI_WANCARD_RADIOSSW |
4145 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4146 | else | |
4147 | status = 0; | |
19d337df | 4148 | |
07431ec8 HMH |
4149 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4150 | return -EIO; | |
4151 | ||
4152 | return 0; | |
4153 | } | |
f74a27d4 | 4154 | |
d3a6ade4 HMH |
4155 | /* sysfs wan enable ---------------------------------------------------- */ |
4156 | static ssize_t wan_enable_show(struct device *dev, | |
4157 | struct device_attribute *attr, | |
4158 | char *buf) | |
4159 | { | |
19d337df JB |
4160 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4161 | attr, buf); | |
d3a6ade4 HMH |
4162 | } |
4163 | ||
4164 | static ssize_t wan_enable_store(struct device *dev, | |
4165 | struct device_attribute *attr, | |
4166 | const char *buf, size_t count) | |
4167 | { | |
19d337df JB |
4168 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4169 | attr, buf, count); | |
d3a6ade4 HMH |
4170 | } |
4171 | ||
4172 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 4173 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4174 | wan_enable_show, wan_enable_store); |
4175 | ||
4176 | /* --------------------------------------------------------------------- */ | |
4177 | ||
4178 | static struct attribute *wan_attributes[] = { | |
4179 | &dev_attr_wan_enable.attr, | |
4180 | NULL | |
4181 | }; | |
4182 | ||
4183 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4184 | .attrs = wan_attributes, |
4185 | }; | |
4186 | ||
19d337df JB |
4187 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4188 | .get_status = wan_get_status, | |
4189 | .set_status = wan_set_status, | |
4190 | }; | |
0e74dc26 | 4191 | |
90d9d3c7 HMH |
4192 | static void wan_shutdown(void) |
4193 | { | |
4194 | /* Order firmware to save current state to NVRAM */ | |
4195 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4196 | TP_ACPI_WGSV_SAVE_STATE)) | |
4197 | printk(TPACPI_NOTICE | |
4198 | "failed to save WWAN state to NVRAM\n"); | |
bee4cd9b HMH |
4199 | else |
4200 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4201 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4202 | } |
4203 | ||
07431ec8 HMH |
4204 | static void wan_exit(void) |
4205 | { | |
4206 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4207 | &wan_attr_group); | |
19d337df JB |
4208 | |
4209 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4210 | ||
4211 | wan_shutdown(); | |
07431ec8 HMH |
4212 | } |
4213 | ||
a5763f22 | 4214 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4215 | { |
d3a6ade4 | 4216 | int res; |
d6fdd1e9 HMH |
4217 | int status = 0; |
4218 | ||
bee4cd9b HMH |
4219 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4220 | "initializing wan subdriver\n"); | |
fe08bc4b | 4221 | |
e0c7dfe7 | 4222 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4223 | |
d8fd94d9 | 4224 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4225 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4226 | ||
bee4cd9b HMH |
4227 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4228 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4229 | str_supported(tp_features.wan), |
4230 | status); | |
4231 | ||
a73f3091 HMH |
4232 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4233 | if (dbg_wwanemul) { | |
4234 | tp_features.wan = 1; | |
4235 | printk(TPACPI_INFO | |
4236 | "wwan switch emulation enabled\n"); | |
4237 | } else | |
4238 | #endif | |
3a872080 HMH |
4239 | if (tp_features.wan && |
4240 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4241 | /* no wan hardware present in system */ | |
4242 | tp_features.wan = 0; | |
bee4cd9b | 4243 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4244 | "wan hardware not installed\n"); |
4245 | } | |
4246 | ||
0e74dc26 HMH |
4247 | if (!tp_features.wan) |
4248 | return 1; | |
4249 | ||
0e74dc26 | 4250 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4251 | &wan_tprfk_ops, |
0e74dc26 | 4252 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4253 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4254 | true); |
4255 | if (res) | |
4256 | return res; | |
4257 | ||
4258 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4259 | &wan_attr_group); | |
4260 | ||
0e74dc26 | 4261 | if (res) { |
19d337df | 4262 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4263 | return res; |
d6fdd1e9 | 4264 | } |
fe08bc4b | 4265 | |
0e74dc26 | 4266 | return 0; |
42adb53c JF |
4267 | } |
4268 | ||
d3a6ade4 | 4269 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4270 | static int wan_read(struct seq_file *m) |
42adb53c | 4271 | { |
887965e6 | 4272 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4273 | } |
4274 | ||
4275 | static int wan_write(char *buf) | |
4276 | { | |
19d337df | 4277 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4278 | } |
4279 | ||
a5763f22 HMH |
4280 | static struct ibm_struct wan_driver_data = { |
4281 | .name = "wan", | |
4282 | .read = wan_read, | |
4283 | .write = wan_write, | |
d3a6ade4 | 4284 | .exit = wan_exit, |
90d9d3c7 | 4285 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4286 | }; |
4287 | ||
0045c0aa HMH |
4288 | /************************************************************************* |
4289 | * UWB subdriver | |
4290 | */ | |
4291 | ||
4292 | enum { | |
4293 | /* ACPI GUWB/SUWB bits */ | |
4294 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4295 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4296 | }; | |
4297 | ||
bee4cd9b HMH |
4298 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4299 | ||
19d337df | 4300 | static int uwb_get_status(void) |
0045c0aa HMH |
4301 | { |
4302 | int status; | |
4303 | ||
0045c0aa HMH |
4304 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4305 | if (dbg_uwbemul) | |
4306 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4307 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4308 | #endif |
4309 | ||
4310 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4311 | return -EIO; | |
4312 | ||
4313 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4314 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4315 | } |
4316 | ||
19d337df | 4317 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4318 | { |
4319 | int status; | |
4320 | ||
bee4cd9b | 4321 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4322 | "will attempt to %s UWB\n", |
4323 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4324 | |
0045c0aa HMH |
4325 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4326 | if (dbg_uwbemul) { | |
19d337df | 4327 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4328 | return 0; |
4329 | } | |
4330 | #endif | |
4331 | ||
19d337df JB |
4332 | if (state == TPACPI_RFK_RADIO_ON) |
4333 | status = TP_ACPI_UWB_RADIOSSW; | |
4334 | else | |
4335 | status = 0; | |
4336 | ||
0045c0aa HMH |
4337 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4338 | return -EIO; | |
4339 | ||
0045c0aa HMH |
4340 | return 0; |
4341 | } | |
4342 | ||
4343 | /* --------------------------------------------------------------------- */ | |
4344 | ||
19d337df JB |
4345 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4346 | .get_status = uwb_get_status, | |
4347 | .set_status = uwb_set_status, | |
4348 | }; | |
0045c0aa HMH |
4349 | |
4350 | static void uwb_exit(void) | |
4351 | { | |
19d337df | 4352 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4353 | } |
4354 | ||
4355 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4356 | { | |
4357 | int res; | |
4358 | int status = 0; | |
4359 | ||
bee4cd9b HMH |
4360 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4361 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4362 | |
4363 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4364 | ||
4365 | tp_features.uwb = hkey_handle && | |
4366 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4367 | ||
bee4cd9b HMH |
4368 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4369 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4370 | str_supported(tp_features.uwb), |
4371 | status); | |
4372 | ||
4373 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4374 | if (dbg_uwbemul) { | |
4375 | tp_features.uwb = 1; | |
4376 | printk(TPACPI_INFO | |
4377 | "uwb switch emulation enabled\n"); | |
4378 | } else | |
4379 | #endif | |
4380 | if (tp_features.uwb && | |
4381 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4382 | /* no uwb hardware present in system */ | |
4383 | tp_features.uwb = 0; | |
4384 | dbg_printk(TPACPI_DBG_INIT, | |
4385 | "uwb hardware not installed\n"); | |
4386 | } | |
4387 | ||
4388 | if (!tp_features.uwb) | |
4389 | return 1; | |
4390 | ||
4391 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4392 | &uwb_tprfk_ops, |
0045c0aa | 4393 | RFKILL_TYPE_UWB, |
bee4cd9b | 4394 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4395 | false); |
0045c0aa HMH |
4396 | return res; |
4397 | } | |
4398 | ||
4399 | static struct ibm_struct uwb_driver_data = { | |
4400 | .name = "uwb", | |
4401 | .exit = uwb_exit, | |
4402 | .flags.experimental = 1, | |
4403 | }; | |
4404 | ||
56b6aeb0 HMH |
4405 | /************************************************************************* |
4406 | * Video subdriver | |
4407 | */ | |
4408 | ||
d7c1d17d HMH |
4409 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4410 | ||
f74a27d4 HMH |
4411 | enum video_access_mode { |
4412 | TPACPI_VIDEO_NONE = 0, | |
4413 | TPACPI_VIDEO_570, /* 570 */ | |
4414 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4415 | TPACPI_VIDEO_NEW, /* all others */ | |
4416 | }; | |
4417 | ||
4418 | enum { /* video status flags, based on VIDEO_570 */ | |
4419 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4420 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4421 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4422 | }; | |
4423 | ||
4424 | enum { /* TPACPI_VIDEO_570 constants */ | |
4425 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4426 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4427 | * video_status_flags */ | |
4428 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4429 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4430 | }; | |
4431 | ||
9a8e1738 HMH |
4432 | static enum video_access_mode video_supported; |
4433 | static int video_orig_autosw; | |
78f81cc4 | 4434 | |
f74a27d4 HMH |
4435 | static int video_autosw_get(void); |
4436 | static int video_autosw_set(int enable); | |
4437 | ||
112a6ee0 JP |
4438 | TPACPI_HANDLE(vid, root, |
4439 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4440 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4441 | "\\_SB.PCI0.VID0", /* 770e */ | |
4442 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4443 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4444 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4445 | ); /* R30, R31 */ | |
4446 | ||
e0c7dfe7 | 4447 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4448 | |
a5763f22 | 4449 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4450 | { |
78f81cc4 BD |
4451 | int ivga; |
4452 | ||
fe08bc4b HMH |
4453 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4454 | ||
e0c7dfe7 | 4455 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4456 | if (tpacpi_is_ibm()) |
4457 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4458 | |
78f81cc4 BD |
4459 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4460 | /* G41, assume IVGA doesn't change */ | |
4461 | vid_handle = vid2_handle; | |
4462 | ||
4463 | if (!vid_handle) | |
4464 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4465 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4466 | else if (tpacpi_is_ibm() && |
4467 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4468 | /* 570 */ |
efa27145 | 4469 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4470 | else if (tpacpi_is_ibm() && |
4471 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4472 | /* 600e/x, 770e, 770x */ |
efa27145 | 4473 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4474 | else |
4475 | /* all others */ | |
efa27145 | 4476 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4477 | |
fe08bc4b HMH |
4478 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4479 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4480 | video_supported); | |
4481 | ||
5fba344c | 4482 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
4483 | } |
4484 | ||
56b6aeb0 HMH |
4485 | static void video_exit(void) |
4486 | { | |
83f34724 HMH |
4487 | dbg_printk(TPACPI_DBG_EXIT, |
4488 | "restoring original video autoswitch mode\n"); | |
4489 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 4490 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 4491 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4492 | } |
4493 | ||
83f34724 | 4494 | static int video_outputsw_get(void) |
1da177e4 LT |
4495 | { |
4496 | int status = 0; | |
4497 | int i; | |
4498 | ||
83f34724 HMH |
4499 | switch (video_supported) { |
4500 | case TPACPI_VIDEO_570: | |
4501 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4502 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4503 | return -EIO; | |
4504 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4505 | break; | |
4506 | case TPACPI_VIDEO_770: | |
4507 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4508 | return -EIO; | |
4509 | if (i) | |
4510 | status |= TP_ACPI_VIDEO_S_LCD; | |
4511 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4512 | return -EIO; | |
4513 | if (i) | |
4514 | status |= TP_ACPI_VIDEO_S_CRT; | |
4515 | break; | |
4516 | case TPACPI_VIDEO_NEW: | |
4517 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4518 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4519 | return -EIO; | |
4520 | if (i) | |
4521 | status |= TP_ACPI_VIDEO_S_CRT; | |
4522 | ||
4523 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4524 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4525 | return -EIO; | |
4526 | if (i) | |
4527 | status |= TP_ACPI_VIDEO_S_LCD; | |
4528 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4529 | return -EIO; | |
4530 | if (i) | |
4531 | status |= TP_ACPI_VIDEO_S_DVI; | |
4532 | break; | |
4533 | default: | |
4534 | return -ENOSYS; | |
78f81cc4 BD |
4535 | } |
4536 | ||
4537 | return status; | |
4538 | } | |
1da177e4 | 4539 | |
83f34724 | 4540 | static int video_outputsw_set(int status) |
78f81cc4 | 4541 | { |
83f34724 HMH |
4542 | int autosw; |
4543 | int res = 0; | |
4544 | ||
4545 | switch (video_supported) { | |
4546 | case TPACPI_VIDEO_570: | |
4547 | res = acpi_evalf(NULL, NULL, | |
4548 | "\\_SB.PHS2", "vdd", | |
4549 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4550 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4551 | break; | |
4552 | case TPACPI_VIDEO_770: | |
4553 | autosw = video_autosw_get(); | |
4554 | if (autosw < 0) | |
4555 | return autosw; | |
1da177e4 | 4556 | |
83f34724 HMH |
4557 | res = video_autosw_set(1); |
4558 | if (res) | |
4559 | return res; | |
4560 | res = acpi_evalf(vid_handle, NULL, | |
4561 | "ASWT", "vdd", status * 0x100, 0); | |
4562 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4563 | printk(TPACPI_ERR |
4564 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
4565 | return -EIO; |
4566 | } | |
4567 | break; | |
4568 | case TPACPI_VIDEO_NEW: | |
4569 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4570 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4571 | break; |
4572 | default: | |
4573 | return -ENOSYS; | |
4574 | } | |
1da177e4 | 4575 | |
83f34724 | 4576 | return (res)? 0 : -EIO; |
1da177e4 LT |
4577 | } |
4578 | ||
83f34724 | 4579 | static int video_autosw_get(void) |
78f81cc4 | 4580 | { |
83f34724 | 4581 | int autosw = 0; |
78f81cc4 | 4582 | |
83f34724 HMH |
4583 | switch (video_supported) { |
4584 | case TPACPI_VIDEO_570: | |
4585 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4586 | return -EIO; | |
4587 | break; | |
4588 | case TPACPI_VIDEO_770: | |
4589 | case TPACPI_VIDEO_NEW: | |
4590 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4591 | return -EIO; | |
4592 | break; | |
4593 | default: | |
4594 | return -ENOSYS; | |
4595 | } | |
78f81cc4 | 4596 | |
83f34724 | 4597 | return autosw & 1; |
78f81cc4 BD |
4598 | } |
4599 | ||
83f34724 | 4600 | static int video_autosw_set(int enable) |
78f81cc4 | 4601 | { |
83f34724 HMH |
4602 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
4603 | return -EIO; | |
4604 | return 0; | |
78f81cc4 BD |
4605 | } |
4606 | ||
83f34724 | 4607 | static int video_outputsw_cycle(void) |
78f81cc4 | 4608 | { |
83f34724 HMH |
4609 | int autosw = video_autosw_get(); |
4610 | int res; | |
78f81cc4 | 4611 | |
83f34724 HMH |
4612 | if (autosw < 0) |
4613 | return autosw; | |
78f81cc4 | 4614 | |
83f34724 HMH |
4615 | switch (video_supported) { |
4616 | case TPACPI_VIDEO_570: | |
4617 | res = video_autosw_set(1); | |
4618 | if (res) | |
4619 | return res; | |
4620 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4621 | break; | |
4622 | case TPACPI_VIDEO_770: | |
4623 | case TPACPI_VIDEO_NEW: | |
4624 | res = video_autosw_set(1); | |
4625 | if (res) | |
4626 | return res; | |
4627 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4628 | break; | |
4629 | default: | |
4630 | return -ENOSYS; | |
4631 | } | |
4632 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4633 | printk(TPACPI_ERR |
4634 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 4635 | return -EIO; |
78f81cc4 BD |
4636 | } |
4637 | ||
83f34724 HMH |
4638 | return (res)? 0 : -EIO; |
4639 | } | |
4640 | ||
4641 | static int video_expand_toggle(void) | |
4642 | { | |
4643 | switch (video_supported) { | |
4644 | case TPACPI_VIDEO_570: | |
4645 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
4646 | 0 : -EIO; | |
4647 | case TPACPI_VIDEO_770: | |
4648 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
4649 | 0 : -EIO; | |
4650 | case TPACPI_VIDEO_NEW: | |
4651 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
4652 | 0 : -EIO; | |
4653 | default: | |
4654 | return -ENOSYS; | |
4655 | } | |
4656 | /* not reached */ | |
78f81cc4 BD |
4657 | } |
4658 | ||
887965e6 | 4659 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4660 | { |
83f34724 | 4661 | int status, autosw; |
56b6aeb0 | 4662 | |
83f34724 | 4663 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4664 | seq_printf(m, "status:\t\tnot supported\n"); |
4665 | return 0; | |
56b6aeb0 HMH |
4666 | } |
4667 | ||
b525c06c HMH |
4668 | /* Even reads can crash X.org, so... */ |
4669 | if (!capable(CAP_SYS_ADMIN)) | |
4670 | return -EPERM; | |
4671 | ||
83f34724 HMH |
4672 | status = video_outputsw_get(); |
4673 | if (status < 0) | |
4674 | return status; | |
4675 | ||
4676 | autosw = video_autosw_get(); | |
4677 | if (autosw < 0) | |
4678 | return autosw; | |
4679 | ||
887965e6 AD |
4680 | seq_printf(m, "status:\t\tsupported\n"); |
4681 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4682 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4683 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4684 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
4685 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4686 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
4687 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4688 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4689 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
4690 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
4691 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 4692 | |
887965e6 | 4693 | return 0; |
56b6aeb0 HMH |
4694 | } |
4695 | ||
78f81cc4 | 4696 | static int video_write(char *buf) |
1da177e4 LT |
4697 | { |
4698 | char *cmd; | |
4699 | int enable, disable, status; | |
83f34724 | 4700 | int res; |
1da177e4 | 4701 | |
83f34724 | 4702 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4703 | return -ENODEV; |
4704 | ||
b525c06c HMH |
4705 | /* Even reads can crash X.org, let alone writes... */ |
4706 | if (!capable(CAP_SYS_ADMIN)) | |
4707 | return -EPERM; | |
4708 | ||
83f34724 HMH |
4709 | enable = 0; |
4710 | disable = 0; | |
1da177e4 LT |
4711 | |
4712 | while ((cmd = next_cmd(&buf))) { | |
4713 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4714 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4715 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4716 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4717 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4718 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4719 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4720 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4721 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4722 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4723 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4724 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4725 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4726 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4727 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4728 | res = video_autosw_set(1); |
4729 | if (res) | |
4730 | return res; | |
1da177e4 | 4731 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4732 | res = video_autosw_set(0); |
4733 | if (res) | |
4734 | return res; | |
1da177e4 | 4735 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4736 | res = video_outputsw_cycle(); |
4737 | if (res) | |
4738 | return res; | |
1da177e4 | 4739 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4740 | res = video_expand_toggle(); |
4741 | if (res) | |
4742 | return res; | |
1da177e4 LT |
4743 | } else |
4744 | return -EINVAL; | |
4745 | } | |
4746 | ||
4747 | if (enable || disable) { | |
83f34724 HMH |
4748 | status = video_outputsw_get(); |
4749 | if (status < 0) | |
4750 | return status; | |
4751 | res = video_outputsw_set((status & ~disable) | enable); | |
4752 | if (res) | |
4753 | return res; | |
1da177e4 LT |
4754 | } |
4755 | ||
4756 | return 0; | |
4757 | } | |
4758 | ||
a5763f22 HMH |
4759 | static struct ibm_struct video_driver_data = { |
4760 | .name = "video", | |
4761 | .read = video_read, | |
4762 | .write = video_write, | |
4763 | .exit = video_exit, | |
4764 | }; | |
4765 | ||
d7c1d17d HMH |
4766 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4767 | ||
56b6aeb0 HMH |
4768 | /************************************************************************* |
4769 | * Light (thinklight) subdriver | |
4770 | */ | |
1da177e4 | 4771 | |
e0c7dfe7 HMH |
4772 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4773 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4774 | |
4fa6811b HMH |
4775 | static int light_get_status(void) |
4776 | { | |
4777 | int status = 0; | |
4778 | ||
4779 | if (tp_features.light_status) { | |
4780 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4781 | return -EIO; | |
4782 | return (!!status); | |
4783 | } | |
4784 | ||
4785 | return -ENXIO; | |
4786 | } | |
4787 | ||
4788 | static int light_set_status(int status) | |
4789 | { | |
4790 | int rc; | |
4791 | ||
4792 | if (tp_features.light) { | |
4793 | if (cmos_handle) { | |
4794 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4795 | (status)? | |
4796 | TP_CMOS_THINKLIGHT_ON : | |
4797 | TP_CMOS_THINKLIGHT_OFF); | |
4798 | } else { | |
4799 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4800 | (status)? 1 : 0); | |
4801 | } | |
4802 | return (rc)? 0 : -EIO; | |
4803 | } | |
4804 | ||
4805 | return -ENXIO; | |
4806 | } | |
4807 | ||
e306501d HMH |
4808 | static void light_set_status_worker(struct work_struct *work) |
4809 | { | |
4810 | struct tpacpi_led_classdev *data = | |
4811 | container_of(work, struct tpacpi_led_classdev, work); | |
4812 | ||
4813 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 4814 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
4815 | } |
4816 | ||
4817 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4818 | enum led_brightness brightness) | |
4819 | { | |
4820 | struct tpacpi_led_classdev *data = | |
4821 | container_of(led_cdev, | |
4822 | struct tpacpi_led_classdev, | |
4823 | led_classdev); | |
75bd3bf2 HMH |
4824 | data->new_state = (brightness != LED_OFF) ? |
4825 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 4826 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4827 | } |
4828 | ||
4829 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4830 | { | |
4831 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4832 | } | |
4833 | ||
4834 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4835 | .led_classdev = { | |
4836 | .name = "tpacpi::thinklight", | |
4837 | .brightness_set = &light_sysfs_set, | |
4838 | .brightness_get = &light_sysfs_get, | |
4839 | } | |
4840 | }; | |
4841 | ||
a5763f22 | 4842 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4843 | { |
9c0a76e1 | 4844 | int rc; |
e306501d | 4845 | |
fe08bc4b HMH |
4846 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4847 | ||
e28393c0 HMH |
4848 | if (tpacpi_is_ibm()) { |
4849 | TPACPI_ACPIHANDLE_INIT(ledb); | |
4850 | TPACPI_ACPIHANDLE_INIT(lght); | |
4851 | } | |
e0c7dfe7 | 4852 | TPACPI_ACPIHANDLE_INIT(cmos); |
e306501d | 4853 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4854 | |
78f81cc4 | 4855 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4856 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4857 | |
d8fd94d9 | 4858 | if (tp_features.light) |
78f81cc4 BD |
4859 | /* light status not supported on |
4860 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4861 | tp_features.light_status = |
4862 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4863 | |
9c0a76e1 HMH |
4864 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4865 | str_supported(tp_features.light), | |
4866 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4867 | |
9c0a76e1 HMH |
4868 | if (!tp_features.light) |
4869 | return 1; | |
4870 | ||
4871 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4872 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4873 | |
4874 | if (rc < 0) { | |
4875 | tp_features.light = 0; | |
4876 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4877 | } else { |
4878 | rc = 0; | |
e306501d | 4879 | } |
9c0a76e1 | 4880 | |
e306501d HMH |
4881 | return rc; |
4882 | } | |
4883 | ||
4884 | static void light_exit(void) | |
4885 | { | |
4886 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4887 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4888 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4889 | } |
4890 | ||
887965e6 | 4891 | static int light_read(struct seq_file *m) |
1da177e4 | 4892 | { |
4fa6811b | 4893 | int status; |
1da177e4 | 4894 | |
d8fd94d9 | 4895 | if (!tp_features.light) { |
887965e6 | 4896 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 4897 | } else if (!tp_features.light_status) { |
887965e6 AD |
4898 | seq_printf(m, "status:\t\tunknown\n"); |
4899 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4900 | } else { |
4fa6811b HMH |
4901 | status = light_get_status(); |
4902 | if (status < 0) | |
4903 | return status; | |
887965e6 AD |
4904 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
4905 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4906 | } |
1da177e4 | 4907 | |
887965e6 | 4908 | return 0; |
1da177e4 LT |
4909 | } |
4910 | ||
78f81cc4 | 4911 | static int light_write(char *buf) |
1da177e4 | 4912 | { |
1da177e4 | 4913 | char *cmd; |
4fa6811b | 4914 | int newstatus = 0; |
78f81cc4 | 4915 | |
d8fd94d9 | 4916 | if (!tp_features.light) |
78f81cc4 BD |
4917 | return -ENODEV; |
4918 | ||
1da177e4 LT |
4919 | while ((cmd = next_cmd(&buf))) { |
4920 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4921 | newstatus = 1; |
1da177e4 | 4922 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4923 | newstatus = 0; |
1da177e4 LT |
4924 | } else |
4925 | return -EINVAL; | |
1da177e4 LT |
4926 | } |
4927 | ||
4fa6811b | 4928 | return light_set_status(newstatus); |
1da177e4 LT |
4929 | } |
4930 | ||
a5763f22 HMH |
4931 | static struct ibm_struct light_driver_data = { |
4932 | .name = "light", | |
4933 | .read = light_read, | |
4934 | .write = light_write, | |
e306501d | 4935 | .exit = light_exit, |
a5763f22 HMH |
4936 | }; |
4937 | ||
56b6aeb0 HMH |
4938 | /************************************************************************* |
4939 | * CMOS subdriver | |
4940 | */ | |
4941 | ||
b616004c HMH |
4942 | /* sysfs cmos_command -------------------------------------------------- */ |
4943 | static ssize_t cmos_command_store(struct device *dev, | |
4944 | struct device_attribute *attr, | |
4945 | const char *buf, size_t count) | |
4946 | { | |
4947 | unsigned long cmos_cmd; | |
4948 | int res; | |
4949 | ||
4950 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4951 | return -EINVAL; | |
4952 | ||
4953 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4954 | return (res)? res : count; | |
4955 | } | |
4956 | ||
4957 | static struct device_attribute dev_attr_cmos_command = | |
4958 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4959 | ||
4960 | /* --------------------------------------------------------------------- */ | |
4961 | ||
a5763f22 | 4962 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4963 | { |
b616004c HMH |
4964 | int res; |
4965 | ||
fe08bc4b HMH |
4966 | vdbg_printk(TPACPI_DBG_INIT, |
4967 | "initializing cmos commands subdriver\n"); | |
4968 | ||
e0c7dfe7 | 4969 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4970 | |
fe08bc4b HMH |
4971 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4972 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4973 | |
4974 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4975 | if (res) | |
4976 | return res; | |
4977 | ||
5fba344c HMH |
4978 | return (cmos_handle)? 0 : 1; |
4979 | } | |
4980 | ||
b616004c HMH |
4981 | static void cmos_exit(void) |
4982 | { | |
4983 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4984 | } | |
4985 | ||
887965e6 | 4986 | static int cmos_read(struct seq_file *m) |
1da177e4 | 4987 | { |
78f81cc4 BD |
4988 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4989 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 4990 | if (!cmos_handle) |
887965e6 | 4991 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 4992 | else { |
887965e6 AD |
4993 | seq_printf(m, "status:\t\tsupported\n"); |
4994 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
4995 | } |
4996 | ||
887965e6 | 4997 | return 0; |
1da177e4 LT |
4998 | } |
4999 | ||
78f81cc4 | 5000 | static int cmos_write(char *buf) |
1da177e4 LT |
5001 | { |
5002 | char *cmd; | |
c9bea99c | 5003 | int cmos_cmd, res; |
1da177e4 LT |
5004 | |
5005 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5006 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5007 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5008 | /* cmos_cmd set */ |
5009 | } else | |
5010 | return -EINVAL; | |
5011 | ||
c9bea99c HMH |
5012 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5013 | if (res) | |
5014 | return res; | |
1da177e4 LT |
5015 | } |
5016 | ||
5017 | return 0; | |
78f81cc4 BD |
5018 | } |
5019 | ||
a5763f22 HMH |
5020 | static struct ibm_struct cmos_driver_data = { |
5021 | .name = "cmos", | |
5022 | .read = cmos_read, | |
5023 | .write = cmos_write, | |
b616004c | 5024 | .exit = cmos_exit, |
a5763f22 | 5025 | }; |
56b6aeb0 HMH |
5026 | |
5027 | /************************************************************************* | |
5028 | * LED subdriver | |
5029 | */ | |
5030 | ||
f74a27d4 HMH |
5031 | enum led_access_mode { |
5032 | TPACPI_LED_NONE = 0, | |
5033 | TPACPI_LED_570, /* 570 */ | |
5034 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5035 | TPACPI_LED_NEW, /* all others */ | |
5036 | }; | |
5037 | ||
5038 | enum { /* For TPACPI_LED_OLD */ | |
5039 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5040 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5041 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5042 | }; | |
5043 | ||
9a8e1738 | 5044 | static enum led_access_mode led_supported; |
78f81cc4 | 5045 | |
2cbb5c8f | 5046 | static acpi_handle led_handle; |
56b6aeb0 | 5047 | |
f21179a4 | 5048 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5049 | static struct tpacpi_led_classdev *tpacpi_leds; |
5050 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5051 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5052 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5053 | "tpacpi::power", | |
5054 | "tpacpi:orange:batt", | |
5055 | "tpacpi:green:batt", | |
5056 | "tpacpi::dock_active", | |
5057 | "tpacpi::bay_active", | |
5058 | "tpacpi::dock_batt", | |
5059 | "tpacpi::unknown_led", | |
5060 | "tpacpi::standby", | |
f21179a4 HMH |
5061 | "tpacpi::dock_status1", |
5062 | "tpacpi::dock_status2", | |
5063 | "tpacpi::unknown_led2", | |
5064 | "tpacpi::unknown_led3", | |
5065 | "tpacpi::thinkvantage", | |
af116101 | 5066 | }; |
f21179a4 | 5067 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5068 | |
5069 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5070 | { | |
5071 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5072 | return false; | |
5073 | #else | |
f21179a4 | 5074 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5075 | #endif |
5076 | } | |
af116101 | 5077 | |
24e45bbe | 5078 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5079 | { |
5080 | int status; | |
af116101 | 5081 | enum led_status_t led_s; |
4fa6811b HMH |
5082 | |
5083 | switch (led_supported) { | |
5084 | case TPACPI_LED_570: | |
5085 | if (!acpi_evalf(ec_handle, | |
5086 | &status, "GLED", "dd", 1 << led)) | |
5087 | return -EIO; | |
af116101 | 5088 | led_s = (status == 0)? |
4fa6811b HMH |
5089 | TPACPI_LED_OFF : |
5090 | ((status == 1)? | |
5091 | TPACPI_LED_ON : | |
5092 | TPACPI_LED_BLINK); | |
af116101 HMH |
5093 | tpacpi_led_state_cache[led] = led_s; |
5094 | return led_s; | |
4fa6811b HMH |
5095 | default: |
5096 | return -ENXIO; | |
5097 | } | |
5098 | ||
5099 | /* not reached */ | |
5100 | } | |
5101 | ||
24e45bbe HMH |
5102 | static int led_set_status(const unsigned int led, |
5103 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5104 | { |
5105 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5106 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5107 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5108 | |
5109 | int rc = 0; | |
5110 | ||
5111 | switch (led_supported) { | |
5112 | case TPACPI_LED_570: | |
24e45bbe | 5113 | /* 570 */ |
a4d5effc | 5114 | if (unlikely(led > 7)) |
24e45bbe | 5115 | return -EINVAL; |
a4d5effc HMH |
5116 | if (unlikely(tpacpi_is_led_restricted(led))) |
5117 | return -EPERM; | |
24e45bbe HMH |
5118 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5119 | (1 << led), led_sled_arg1[ledstatus])) | |
5120 | rc = -EIO; | |
5121 | break; | |
4fa6811b | 5122 | case TPACPI_LED_OLD: |
24e45bbe | 5123 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5124 | if (unlikely(led > 7)) |
24e45bbe | 5125 | return -EINVAL; |
a4d5effc HMH |
5126 | if (unlikely(tpacpi_is_led_restricted(led))) |
5127 | return -EPERM; | |
24e45bbe HMH |
5128 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5129 | if (rc >= 0) | |
5130 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5131 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5132 | if (rc >= 0) | |
5133 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5134 | (ledstatus != TPACPI_LED_OFF) << led); | |
5135 | break; | |
4fa6811b | 5136 | case TPACPI_LED_NEW: |
24e45bbe | 5137 | /* all others */ |
a4d5effc HMH |
5138 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5139 | return -EINVAL; | |
5140 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5141 | return -EPERM; | |
24e45bbe HMH |
5142 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5143 | led, led_led_arg1[ledstatus])) | |
5144 | rc = -EIO; | |
5145 | break; | |
4fa6811b HMH |
5146 | default: |
5147 | rc = -ENXIO; | |
5148 | } | |
5149 | ||
af116101 HMH |
5150 | if (!rc) |
5151 | tpacpi_led_state_cache[led] = ledstatus; | |
5152 | ||
5153 | return rc; | |
5154 | } | |
5155 | ||
af116101 HMH |
5156 | static void led_set_status_worker(struct work_struct *work) |
5157 | { | |
5158 | struct tpacpi_led_classdev *data = | |
5159 | container_of(work, struct tpacpi_led_classdev, work); | |
5160 | ||
5161 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5162 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5163 | } |
5164 | ||
5165 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5166 | enum led_brightness brightness) | |
5167 | { | |
5168 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5169 | struct tpacpi_led_classdev, led_classdev); | |
5170 | ||
75bd3bf2 HMH |
5171 | if (brightness == LED_OFF) |
5172 | data->new_state = TPACPI_LED_OFF; | |
5173 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5174 | data->new_state = TPACPI_LED_ON; | |
5175 | else | |
5176 | data->new_state = TPACPI_LED_BLINK; | |
5177 | ||
e0e3c061 | 5178 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5179 | } |
5180 | ||
5181 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5182 | unsigned long *delay_on, unsigned long *delay_off) | |
5183 | { | |
5184 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5185 | struct tpacpi_led_classdev, led_classdev); | |
5186 | ||
5187 | /* Can we choose the flash rate? */ | |
5188 | if (*delay_on == 0 && *delay_off == 0) { | |
5189 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5190 | *delay_on = 500; /* ms */ | |
5191 | *delay_off = 500; /* ms */ | |
5192 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5193 | return -EINVAL; | |
5194 | ||
75bd3bf2 | 5195 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5196 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5197 | |
5198 | return 0; | |
5199 | } | |
5200 | ||
5201 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5202 | { | |
5203 | int rc; | |
5204 | ||
5205 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5206 | struct tpacpi_led_classdev, led_classdev); | |
5207 | ||
5208 | rc = led_get_status(data->led); | |
5209 | ||
5210 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5211 | rc = LED_OFF; /* no error handling in led class :( */ | |
5212 | else | |
5213 | rc = LED_FULL; | |
5214 | ||
4fa6811b HMH |
5215 | return rc; |
5216 | } | |
5217 | ||
af116101 HMH |
5218 | static void led_exit(void) |
5219 | { | |
5220 | unsigned int i; | |
5221 | ||
5222 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5223 | if (tpacpi_leds[i].led_classdev.name) | |
5224 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5225 | } | |
5226 | ||
5227 | kfree(tpacpi_leds); | |
af116101 HMH |
5228 | } |
5229 | ||
a4d5effc HMH |
5230 | static int __init tpacpi_init_led(unsigned int led) |
5231 | { | |
5232 | int rc; | |
5233 | ||
5234 | tpacpi_leds[led].led = led; | |
5235 | ||
f21179a4 HMH |
5236 | /* LEDs with no name don't get registered */ |
5237 | if (!tpacpi_led_names[led]) | |
5238 | return 0; | |
5239 | ||
a4d5effc HMH |
5240 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5241 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5242 | if (led_supported == TPACPI_LED_570) | |
5243 | tpacpi_leds[led].led_classdev.brightness_get = | |
5244 | &led_sysfs_get; | |
5245 | ||
5246 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5247 | ||
5248 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5249 | ||
5250 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5251 | &tpacpi_leds[led].led_classdev); | |
5252 | if (rc < 0) | |
5253 | tpacpi_leds[led].led_classdev.name = NULL; | |
5254 | ||
5255 | return rc; | |
5256 | } | |
5257 | ||
f21179a4 HMH |
5258 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5259 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5260 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5261 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5262 | ||
5263 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5264 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5265 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5266 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5267 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5268 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5269 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5270 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5271 | ||
5272 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5273 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5274 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5275 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5276 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5277 | ||
5278 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5279 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5280 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5281 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5282 | ||
5283 | /* (1) - may have excess leds enabled on MSB */ | |
5284 | ||
5285 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5286 | { /* Lenovo */ | |
5287 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5288 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5289 | .quirks = 0x1fffU, | |
5290 | }, | |
5291 | { /* IBM ThinkPads with no EC version string */ | |
5292 | .vendor = PCI_VENDOR_ID_IBM, | |
5293 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5294 | .quirks = 0x00ffU, | |
5295 | }, | |
5296 | { /* IBM ThinkPads with EC version string */ | |
5297 | .vendor = PCI_VENDOR_ID_IBM, | |
5298 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5299 | .quirks = 0x00bfU, | |
5300 | }, | |
5301 | }; | |
5302 | ||
5303 | #undef TPACPI_LEDQ_IBM | |
5304 | #undef TPACPI_LEDQ_LNV | |
5305 | ||
2cbb5c8f HMH |
5306 | static enum led_access_mode __init led_init_detect_mode(void) |
5307 | { | |
5308 | acpi_status status; | |
5309 | ||
5310 | if (tpacpi_is_ibm()) { | |
5311 | /* 570 */ | |
5312 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5313 | if (ACPI_SUCCESS(status)) | |
5314 | return TPACPI_LED_570; | |
5315 | ||
5316 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5317 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5318 | if (ACPI_SUCCESS(status)) | |
5319 | return TPACPI_LED_OLD; | |
5320 | } | |
5321 | ||
5322 | /* most others */ | |
5323 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5324 | if (ACPI_SUCCESS(status)) | |
5325 | return TPACPI_LED_NEW; | |
5326 | ||
5327 | /* R30, R31, and unknown firmwares */ | |
5328 | led_handle = NULL; | |
5329 | return TPACPI_LED_NONE; | |
5330 | } | |
5331 | ||
a5763f22 | 5332 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5333 | { |
af116101 HMH |
5334 | unsigned int i; |
5335 | int rc; | |
f21179a4 | 5336 | unsigned long useful_leds; |
af116101 | 5337 | |
fe08bc4b HMH |
5338 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5339 | ||
2cbb5c8f | 5340 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5341 | |
fe08bc4b HMH |
5342 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5343 | str_supported(led_supported), led_supported); | |
5344 | ||
f21179a4 HMH |
5345 | if (led_supported == TPACPI_LED_NONE) |
5346 | return 1; | |
5347 | ||
af116101 HMH |
5348 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5349 | GFP_KERNEL); | |
5350 | if (!tpacpi_leds) { | |
5351 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
5352 | return -ENOMEM; | |
5353 | } | |
5354 | ||
f21179a4 HMH |
5355 | useful_leds = tpacpi_check_quirks(led_useful_qtable, |
5356 | ARRAY_SIZE(led_useful_qtable)); | |
5357 | ||
af116101 | 5358 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
f21179a4 HMH |
5359 | if (!tpacpi_is_led_restricted(i) && |
5360 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5361 | rc = tpacpi_init_led(i); |
5362 | if (rc < 0) { | |
5363 | led_exit(); | |
5364 | return rc; | |
5365 | } | |
af116101 HMH |
5366 | } |
5367 | } | |
5368 | ||
a4d5effc | 5369 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
f21179a4 HMH |
5370 | printk(TPACPI_NOTICE |
5371 | "warning: userspace override of important " | |
5372 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5373 | #endif |
f21179a4 | 5374 | return 0; |
78f81cc4 BD |
5375 | } |
5376 | ||
4fa6811b HMH |
5377 | #define str_led_status(s) \ |
5378 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5379 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5380 | |
887965e6 | 5381 | static int led_read(struct seq_file *m) |
1da177e4 | 5382 | { |
78f81cc4 | 5383 | if (!led_supported) { |
887965e6 AD |
5384 | seq_printf(m, "status:\t\tnot supported\n"); |
5385 | return 0; | |
78f81cc4 | 5386 | } |
887965e6 | 5387 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5388 | |
efa27145 | 5389 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5390 | /* 570 */ |
5391 | int i, status; | |
5392 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5393 | status = led_get_status(i); |
5394 | if (status < 0) | |
78f81cc4 | 5395 | return -EIO; |
887965e6 | 5396 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5397 | i, str_led_status(status)); |
78f81cc4 BD |
5398 | } |
5399 | } | |
5400 | ||
887965e6 | 5401 | seq_printf(m, "commands:\t" |
f21179a4 | 5402 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5403 | |
887965e6 | 5404 | return 0; |
1da177e4 LT |
5405 | } |
5406 | ||
78f81cc4 | 5407 | static int led_write(char *buf) |
1da177e4 LT |
5408 | { |
5409 | char *cmd; | |
4fa6811b HMH |
5410 | int led, rc; |
5411 | enum led_status_t s; | |
78f81cc4 BD |
5412 | |
5413 | if (!led_supported) | |
5414 | return -ENODEV; | |
1da177e4 LT |
5415 | |
5416 | while ((cmd = next_cmd(&buf))) { | |
f21179a4 | 5417 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 15) |
1da177e4 LT |
5418 | return -EINVAL; |
5419 | ||
78f81cc4 | 5420 | if (strstr(cmd, "off")) { |
4fa6811b | 5421 | s = TPACPI_LED_OFF; |
1da177e4 | 5422 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5423 | s = TPACPI_LED_ON; |
78f81cc4 | 5424 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5425 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5426 | } else { |
4fa6811b | 5427 | return -EINVAL; |
78f81cc4 | 5428 | } |
4fa6811b HMH |
5429 | |
5430 | rc = led_set_status(led, s); | |
5431 | if (rc < 0) | |
5432 | return rc; | |
78f81cc4 BD |
5433 | } |
5434 | ||
5435 | return 0; | |
5436 | } | |
5437 | ||
a5763f22 HMH |
5438 | static struct ibm_struct led_driver_data = { |
5439 | .name = "led", | |
5440 | .read = led_read, | |
5441 | .write = led_write, | |
af116101 | 5442 | .exit = led_exit, |
a5763f22 HMH |
5443 | }; |
5444 | ||
56b6aeb0 HMH |
5445 | /************************************************************************* |
5446 | * Beep subdriver | |
5447 | */ | |
5448 | ||
e0c7dfe7 | 5449 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5450 | |
60201732 HMH |
5451 | #define TPACPI_BEEP_Q1 0x0001 |
5452 | ||
5453 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5454 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5455 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5456 | }; | |
5457 | ||
a5763f22 | 5458 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5459 | { |
60201732 HMH |
5460 | unsigned long quirks; |
5461 | ||
fe08bc4b HMH |
5462 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5463 | ||
e0c7dfe7 | 5464 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5465 | |
fe08bc4b HMH |
5466 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5467 | str_supported(beep_handle != NULL)); | |
5468 | ||
60201732 HMH |
5469 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5470 | ARRAY_SIZE(beep_quirk_table)); | |
5471 | ||
5472 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5473 | ||
5fba344c HMH |
5474 | return (beep_handle)? 0 : 1; |
5475 | } | |
5476 | ||
887965e6 | 5477 | static int beep_read(struct seq_file *m) |
78f81cc4 | 5478 | { |
78f81cc4 | 5479 | if (!beep_handle) |
887965e6 | 5480 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 5481 | else { |
887965e6 AD |
5482 | seq_printf(m, "status:\t\tsupported\n"); |
5483 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
5484 | } |
5485 | ||
887965e6 | 5486 | return 0; |
78f81cc4 BD |
5487 | } |
5488 | ||
5489 | static int beep_write(char *buf) | |
5490 | { | |
5491 | char *cmd; | |
5492 | int beep_cmd; | |
5493 | ||
5494 | if (!beep_handle) | |
5495 | return -ENODEV; | |
5496 | ||
5497 | while ((cmd = next_cmd(&buf))) { | |
5498 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5499 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5500 | /* beep_cmd set */ | |
5501 | } else | |
5502 | return -EINVAL; | |
60201732 HMH |
5503 | if (tp_features.beep_needs_two_args) { |
5504 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5505 | beep_cmd, 0)) | |
5506 | return -EIO; | |
5507 | } else { | |
5508 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5509 | beep_cmd)) | |
5510 | return -EIO; | |
5511 | } | |
78f81cc4 BD |
5512 | } |
5513 | ||
5514 | return 0; | |
5515 | } | |
5516 | ||
a5763f22 HMH |
5517 | static struct ibm_struct beep_driver_data = { |
5518 | .name = "beep", | |
5519 | .read = beep_read, | |
5520 | .write = beep_write, | |
5521 | }; | |
5522 | ||
56b6aeb0 HMH |
5523 | /************************************************************************* |
5524 | * Thermal subdriver | |
5525 | */ | |
78f81cc4 | 5526 | |
f74a27d4 HMH |
5527 | enum thermal_access_mode { |
5528 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5529 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5530 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5531 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5532 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5533 | }; | |
5534 | ||
5535 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5536 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5537 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5538 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5539 | |
5540 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5541 | }; |
5542 | ||
9ebd9e83 | 5543 | |
f74a27d4 HMH |
5544 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5545 | struct ibm_thermal_sensors_struct { | |
5546 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5547 | }; | |
5548 | ||
a26f878a | 5549 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5550 | |
b21a15f6 HMH |
5551 | /* idx is zero-based */ |
5552 | static int thermal_get_sensor(int idx, s32 *value) | |
5553 | { | |
5554 | int t; | |
5555 | s8 tmp; | |
5556 | char tmpi[5]; | |
5557 | ||
5558 | t = TP_EC_THERMAL_TMP0; | |
5559 | ||
5560 | switch (thermal_read_mode) { | |
5561 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5562 | case TPACPI_THERMAL_TPEC_16: | |
5563 | if (idx >= 8 && idx <= 15) { | |
5564 | t = TP_EC_THERMAL_TMP8; | |
5565 | idx -= 8; | |
5566 | } | |
5567 | /* fallthrough */ | |
5568 | #endif | |
5569 | case TPACPI_THERMAL_TPEC_8: | |
5570 | if (idx <= 7) { | |
5571 | if (!acpi_ec_read(t + idx, &tmp)) | |
5572 | return -EIO; | |
5573 | *value = tmp * 1000; | |
5574 | return 0; | |
5575 | } | |
5576 | break; | |
5577 | ||
5578 | case TPACPI_THERMAL_ACPI_UPDT: | |
5579 | if (idx <= 7) { | |
5580 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5581 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5582 | return -EIO; | |
5583 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5584 | return -EIO; | |
5585 | *value = (t - 2732) * 100; | |
5586 | return 0; | |
5587 | } | |
5588 | break; | |
5589 | ||
5590 | case TPACPI_THERMAL_ACPI_TMP07: | |
5591 | if (idx <= 7) { | |
5592 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5593 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5594 | return -EIO; | |
5595 | if (t > 127 || t < -127) | |
5596 | t = TP_EC_THERMAL_TMP_NA; | |
5597 | *value = t * 1000; | |
5598 | return 0; | |
5599 | } | |
5600 | break; | |
5601 | ||
5602 | case TPACPI_THERMAL_NONE: | |
5603 | default: | |
5604 | return -ENOSYS; | |
5605 | } | |
5606 | ||
5607 | return -EINVAL; | |
5608 | } | |
5609 | ||
5610 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5611 | { | |
5612 | int res, i; | |
5613 | int n; | |
5614 | ||
5615 | n = 8; | |
5616 | i = 0; | |
5617 | ||
5618 | if (!s) | |
5619 | return -EINVAL; | |
5620 | ||
5621 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5622 | n = 16; | |
5623 | ||
35ff8b9f | 5624 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5625 | res = thermal_get_sensor(i, &s->temp[i]); |
5626 | if (res) | |
5627 | return res; | |
5628 | } | |
5629 | ||
5630 | return n; | |
5631 | } | |
f74a27d4 | 5632 | |
9ebd9e83 HMH |
5633 | static void thermal_dump_all_sensors(void) |
5634 | { | |
5635 | int n, i; | |
5636 | struct ibm_thermal_sensors_struct t; | |
5637 | ||
5638 | n = thermal_get_sensors(&t); | |
5639 | if (n <= 0) | |
5640 | return; | |
5641 | ||
5642 | printk(TPACPI_NOTICE | |
5643 | "temperatures (Celsius):"); | |
5644 | ||
5645 | for (i = 0; i < n; i++) { | |
5646 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
5647 | printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); | |
5648 | else | |
5649 | printk(KERN_CONT " N/A"); | |
5650 | } | |
5651 | ||
5652 | printk(KERN_CONT "\n"); | |
5653 | } | |
5654 | ||
2c37aa4e HMH |
5655 | /* sysfs temp##_input -------------------------------------------------- */ |
5656 | ||
5657 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5658 | struct device_attribute *attr, | |
5659 | char *buf) | |
5660 | { | |
5661 | struct sensor_device_attribute *sensor_attr = | |
5662 | to_sensor_dev_attr(attr); | |
5663 | int idx = sensor_attr->index; | |
5664 | s32 value; | |
5665 | int res; | |
5666 | ||
5667 | res = thermal_get_sensor(idx, &value); | |
5668 | if (res) | |
5669 | return res; | |
9ebd9e83 | 5670 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5671 | return -ENXIO; |
5672 | ||
5673 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5674 | } | |
5675 | ||
5676 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5677 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5678 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5679 | |
5680 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5681 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5682 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5683 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5684 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5685 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5686 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5687 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5688 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5689 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5690 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5691 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5692 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5693 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5694 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5695 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5696 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5697 | }; | |
5698 | ||
5699 | #define THERMAL_ATTRS(X) \ | |
5700 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5701 | ||
5702 | static struct attribute *thermal_temp_input_attr[] = { | |
5703 | THERMAL_ATTRS(8), | |
5704 | THERMAL_ATTRS(9), | |
5705 | THERMAL_ATTRS(10), | |
5706 | THERMAL_ATTRS(11), | |
5707 | THERMAL_ATTRS(12), | |
5708 | THERMAL_ATTRS(13), | |
5709 | THERMAL_ATTRS(14), | |
5710 | THERMAL_ATTRS(15), | |
5711 | THERMAL_ATTRS(0), | |
5712 | THERMAL_ATTRS(1), | |
5713 | THERMAL_ATTRS(2), | |
5714 | THERMAL_ATTRS(3), | |
5715 | THERMAL_ATTRS(4), | |
5716 | THERMAL_ATTRS(5), | |
5717 | THERMAL_ATTRS(6), | |
5718 | THERMAL_ATTRS(7), | |
5719 | NULL | |
5720 | }; | |
5721 | ||
5722 | static const struct attribute_group thermal_temp_input16_group = { | |
5723 | .attrs = thermal_temp_input_attr | |
5724 | }; | |
5725 | ||
5726 | static const struct attribute_group thermal_temp_input8_group = { | |
5727 | .attrs = &thermal_temp_input_attr[8] | |
5728 | }; | |
5729 | ||
5730 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5731 | #undef THERMAL_ATTRS | |
5732 | ||
5733 | /* --------------------------------------------------------------------- */ | |
5734 | ||
a5763f22 | 5735 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5736 | { |
60eb0b35 HMH |
5737 | u8 t, ta1, ta2; |
5738 | int i; | |
5fba344c | 5739 | int acpi_tmp7; |
2c37aa4e | 5740 | int res; |
5fba344c | 5741 | |
fe08bc4b HMH |
5742 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5743 | ||
5fba344c | 5744 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5745 | |
3d6f99ca | 5746 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5747 | /* |
5748 | * Direct EC access mode: sensors at registers | |
5749 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5750 | * non-implemented, thermal sensors return 0x80 when | |
5751 | * not available | |
5752 | */ | |
78f81cc4 | 5753 | |
60eb0b35 HMH |
5754 | ta1 = ta2 = 0; |
5755 | for (i = 0; i < 8; i++) { | |
04cc862c | 5756 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5757 | ta1 |= t; |
5758 | } else { | |
5759 | ta1 = 0; | |
5760 | break; | |
5761 | } | |
04cc862c | 5762 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5763 | ta2 |= t; |
5764 | } else { | |
5765 | ta1 = 0; | |
5766 | break; | |
5767 | } | |
5768 | } | |
5769 | if (ta1 == 0) { | |
5770 | /* This is sheer paranoia, but we handle it anyway */ | |
5771 | if (acpi_tmp7) { | |
e0c7dfe7 | 5772 | printk(TPACPI_ERR |
60eb0b35 | 5773 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5774 | "falling back to ACPI TMPx access " |
5775 | "mode\n"); | |
efa27145 | 5776 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5777 | } else { |
e0c7dfe7 | 5778 | printk(TPACPI_ERR |
60eb0b35 HMH |
5779 | "ThinkPad ACPI EC access misbehaving, " |
5780 | "disabling thermal sensors access\n"); | |
efa27145 | 5781 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5782 | } |
5783 | } else { | |
5784 | thermal_read_mode = | |
5785 | (ta2 != 0) ? | |
efa27145 | 5786 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5787 | } |
5788 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
5789 | if (tpacpi_is_ibm() && |
5790 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 5791 | /* 600e/x, 770e, 770x */ |
efa27145 | 5792 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 5793 | } else { |
e28393c0 | 5794 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 5795 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5796 | } |
5797 | } else { | |
5798 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5799 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5800 | } |
78f81cc4 | 5801 | |
fe08bc4b HMH |
5802 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5803 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5804 | thermal_read_mode); | |
5805 | ||
35ff8b9f | 5806 | switch (thermal_read_mode) { |
2c37aa4e | 5807 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5808 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5809 | &thermal_temp_input16_group); |
5810 | if (res) | |
5811 | return res; | |
5812 | break; | |
5813 | case TPACPI_THERMAL_TPEC_8: | |
5814 | case TPACPI_THERMAL_ACPI_TMP07: | |
5815 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5816 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5817 | &thermal_temp_input8_group); |
5818 | if (res) | |
5819 | return res; | |
5820 | break; | |
5821 | case TPACPI_THERMAL_NONE: | |
5822 | default: | |
5823 | return 1; | |
5824 | } | |
5825 | ||
5826 | return 0; | |
5827 | } | |
5828 | ||
5829 | static void thermal_exit(void) | |
5830 | { | |
35ff8b9f | 5831 | switch (thermal_read_mode) { |
2c37aa4e | 5832 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5833 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5834 | &thermal_temp_input16_group); |
5835 | break; | |
5836 | case TPACPI_THERMAL_TPEC_8: | |
5837 | case TPACPI_THERMAL_ACPI_TMP07: | |
5838 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5839 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 5840 | &thermal_temp_input8_group); |
2c37aa4e HMH |
5841 | break; |
5842 | case TPACPI_THERMAL_NONE: | |
5843 | default: | |
5844 | break; | |
5845 | } | |
78f81cc4 BD |
5846 | } |
5847 | ||
887965e6 | 5848 | static int thermal_read(struct seq_file *m) |
a26f878a | 5849 | { |
a26f878a HMH |
5850 | int n, i; |
5851 | struct ibm_thermal_sensors_struct t; | |
5852 | ||
5853 | n = thermal_get_sensors(&t); | |
5854 | if (unlikely(n < 0)) | |
5855 | return n; | |
5856 | ||
887965e6 | 5857 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
5858 | |
5859 | if (n > 0) { | |
5860 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
5861 | seq_printf(m, "%d ", t.temp[i] / 1000); |
5862 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 5863 | } else |
887965e6 | 5864 | seq_printf(m, "not supported\n"); |
78f81cc4 | 5865 | |
887965e6 | 5866 | return 0; |
78f81cc4 BD |
5867 | } |
5868 | ||
a5763f22 HMH |
5869 | static struct ibm_struct thermal_driver_data = { |
5870 | .name = "thermal", | |
5871 | .read = thermal_read, | |
2c37aa4e | 5872 | .exit = thermal_exit, |
a5763f22 HMH |
5873 | }; |
5874 | ||
56b6aeb0 HMH |
5875 | /************************************************************************* |
5876 | * Backlight/brightness subdriver | |
5877 | */ | |
5878 | ||
f74a27d4 HMH |
5879 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5880 | ||
0e501834 HMH |
5881 | /* |
5882 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
5883 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
5884 | * | |
5885 | * EC HBRV (0x31) has the following layout | |
5886 | * Bit 7: unknown function | |
5887 | * Bit 6: unknown function | |
5888 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5889 | * Bit 4: must be set to zero to avoid problems | |
5890 | * Bit 3-0: backlight brightness level | |
5891 | * | |
5892 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
5893 | * |
5894 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
5895 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
5896 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
5897 | */ |
5898 | ||
e11aecf1 HMH |
5899 | enum { |
5900 | TP_EC_BACKLIGHT = 0x31, | |
5901 | ||
5902 | /* TP_EC_BACKLIGHT bitmasks */ | |
5903 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5904 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5905 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5906 | }; | |
5907 | ||
0e501834 HMH |
5908 | enum tpacpi_brightness_access_mode { |
5909 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
5910 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
5911 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
5912 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
5913 | TPACPI_BRGHT_MODE_MAX | |
5914 | }; | |
5915 | ||
94954cc6 | 5916 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
5917 | |
5918 | static enum tpacpi_brightness_access_mode brightness_mode = | |
5919 | TPACPI_BRGHT_MODE_MAX; | |
5920 | ||
f74a27d4 HMH |
5921 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
5922 | ||
b21a15f6 | 5923 | static struct mutex brightness_mutex; |
56b6aeb0 | 5924 | |
0e501834 HMH |
5925 | /* NVRAM brightness access, |
5926 | * call with brightness_mutex held! */ | |
5927 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 5928 | { |
0e501834 | 5929 | u8 lnvram; |
b21a15f6 | 5930 | |
0e501834 HMH |
5931 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
5932 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5933 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 5934 | lnvram &= bright_maxlvl; |
0e501834 HMH |
5935 | |
5936 | return lnvram; | |
5937 | } | |
5938 | ||
5939 | static void tpacpi_brightness_checkpoint_nvram(void) | |
5940 | { | |
5941 | u8 lec = 0; | |
5942 | u8 b_nvram; | |
5943 | ||
5944 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
5945 | return; | |
5946 | ||
5947 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5948 | "trying to checkpoint backlight level to NVRAM...\n"); | |
5949 | ||
5950 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
5951 | return; | |
5952 | ||
5953 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
5954 | goto unlock; | |
5955 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
5956 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
5957 | ||
5958 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5959 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
5960 | /* NVRAM needs update */ | |
5961 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
5962 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
5963 | b_nvram |= lec; | |
5964 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
5965 | dbg_printk(TPACPI_DBG_BRGHT, | |
5966 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
5967 | (unsigned int) lec, (unsigned int) b_nvram); | |
5968 | } else | |
5969 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5970 | "NVRAM backlight level already is %u (0x%02x)\n", | |
5971 | (unsigned int) lec, (unsigned int) b_nvram); | |
5972 | ||
5973 | unlock: | |
5974 | mutex_unlock(&brightness_mutex); | |
5975 | } | |
5976 | ||
5977 | ||
5978 | /* call with brightness_mutex held! */ | |
5979 | static int tpacpi_brightness_get_raw(int *status) | |
5980 | { | |
5981 | u8 lec = 0; | |
5982 | ||
5983 | switch (brightness_mode) { | |
5984 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
5985 | *status = tpacpi_brightness_nvram_get(); | |
5986 | return 0; | |
5987 | case TPACPI_BRGHT_MODE_EC: | |
5988 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
5989 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 5990 | return -EIO; |
0e501834 HMH |
5991 | *status = lec; |
5992 | return 0; | |
5993 | default: | |
5994 | return -ENXIO; | |
b21a15f6 | 5995 | } |
0e501834 HMH |
5996 | } |
5997 | ||
5998 | /* call with brightness_mutex held! */ | |
5999 | /* do NOT call with illegal backlight level value */ | |
6000 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6001 | { | |
6002 | u8 lec = 0; | |
6003 | ||
6004 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6005 | return -EIO; | |
6006 | ||
6007 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6008 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6009 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6010 | return -EIO; | |
6011 | ||
6012 | return 0; | |
6013 | } | |
6014 | ||
6015 | /* call with brightness_mutex held! */ | |
6016 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6017 | { | |
6018 | int cmos_cmd, inc; | |
6019 | unsigned int current_value, i; | |
6020 | ||
6021 | current_value = tpacpi_brightness_nvram_get(); | |
6022 | ||
6023 | if (value == current_value) | |
6024 | return 0; | |
6025 | ||
6026 | cmos_cmd = (value > current_value) ? | |
6027 | TP_CMOS_BRIGHTNESS_UP : | |
6028 | TP_CMOS_BRIGHTNESS_DOWN; | |
6029 | inc = (value > current_value) ? 1 : -1; | |
6030 | ||
6031 | for (i = current_value; i != value; i += inc) | |
6032 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6033 | return -EIO; | |
b21a15f6 | 6034 | |
e11aecf1 | 6035 | return 0; |
b21a15f6 HMH |
6036 | } |
6037 | ||
6038 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6039 | static int brightness_set(unsigned int value) |
b21a15f6 | 6040 | { |
0e501834 | 6041 | int res; |
b21a15f6 | 6042 | |
77775838 | 6043 | if (value > bright_maxlvl || value < 0) |
b21a15f6 HMH |
6044 | return -EINVAL; |
6045 | ||
0e501834 HMH |
6046 | vdbg_printk(TPACPI_DBG_BRGHT, |
6047 | "set backlight level to %d\n", value); | |
6048 | ||
7646ea88 | 6049 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6050 | if (res < 0) |
6051 | return res; | |
6052 | ||
0e501834 HMH |
6053 | switch (brightness_mode) { |
6054 | case TPACPI_BRGHT_MODE_EC: | |
6055 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6056 | res = tpacpi_brightness_set_ec(value); | |
6057 | break; | |
6058 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6059 | res = tpacpi_brightness_set_ucmsstep(value); | |
6060 | break; | |
6061 | default: | |
6062 | res = -ENXIO; | |
b21a15f6 HMH |
6063 | } |
6064 | ||
b21a15f6 HMH |
6065 | mutex_unlock(&brightness_mutex); |
6066 | return res; | |
6067 | } | |
6068 | ||
6069 | /* sysfs backlight class ----------------------------------------------- */ | |
6070 | ||
6071 | static int brightness_update_status(struct backlight_device *bd) | |
6072 | { | |
0e501834 | 6073 | unsigned int level = |
b21a15f6 HMH |
6074 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6075 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6076 | bd->props.brightness : 0; |
6077 | ||
6078 | dbg_printk(TPACPI_DBG_BRGHT, | |
6079 | "backlight: attempt to set level to %d\n", | |
6080 | level); | |
6081 | ||
6082 | /* it is the backlight class's job (caller) to handle | |
6083 | * EINTR and other errors properly */ | |
6084 | return brightness_set(level); | |
b21a15f6 HMH |
6085 | } |
6086 | ||
e11aecf1 | 6087 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6088 | { |
e11aecf1 | 6089 | int status, res; |
a3f104c0 | 6090 | |
0e501834 | 6091 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6092 | if (res < 0) |
0e501834 HMH |
6093 | return 0; |
6094 | ||
6095 | res = tpacpi_brightness_get_raw(&status); | |
6096 | ||
6097 | mutex_unlock(&brightness_mutex); | |
6098 | ||
6099 | if (res < 0) | |
6100 | return 0; | |
e11e211a | 6101 | |
e11aecf1 | 6102 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6103 | } |
6104 | ||
347a2686 HMH |
6105 | static void tpacpi_brightness_notify_change(void) |
6106 | { | |
6107 | backlight_force_update(ibm_backlight_device, | |
6108 | BACKLIGHT_UPDATE_HOTKEY); | |
6109 | } | |
6110 | ||
acc2472e | 6111 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6112 | .get_brightness = brightness_get, |
6113 | .update_status = brightness_update_status, | |
56b6aeb0 | 6114 | }; |
e11e211a | 6115 | |
b21a15f6 | 6116 | /* --------------------------------------------------------------------- */ |
e11e211a | 6117 | |
122f2672 HMH |
6118 | /* |
6119 | * Call _BCL method of video device. On some ThinkPads this will | |
6120 | * switch the firmware to the ACPI brightness control mode. | |
6121 | */ | |
6122 | ||
77775838 HMH |
6123 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6124 | { | |
6125 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6126 | union acpi_object *obj; | |
6127 | int rc; | |
6128 | ||
122f2672 | 6129 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, "_BCL", NULL, &buffer))) { |
77775838 HMH |
6130 | obj = (union acpi_object *)buffer.pointer; |
6131 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
6132 | printk(TPACPI_ERR "Unknown _BCL data, " | |
6133 | "please report this to %s\n", TPACPI_MAIL); | |
6134 | rc = 0; | |
6135 | } else { | |
6136 | rc = obj->package.count; | |
6137 | } | |
6138 | } else { | |
6139 | return 0; | |
6140 | } | |
6141 | ||
6142 | kfree(buffer.pointer); | |
6143 | return rc; | |
6144 | } | |
6145 | ||
77775838 HMH |
6146 | |
6147 | /* | |
6148 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6149 | */ | |
6150 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6151 | { | |
122f2672 | 6152 | acpi_handle video_device; |
77775838 | 6153 | int bcl_levels = 0; |
77775838 | 6154 | |
122f2672 HMH |
6155 | tpacpi_acpi_handle_locate("video", ACPI_VIDEO_HID, &video_device); |
6156 | if (video_device) | |
6157 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6158 | |
122f2672 | 6159 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6160 | |
122f2672 | 6161 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6162 | } |
6163 | ||
59fe4fe3 HMH |
6164 | /* |
6165 | * These are only useful for models that have only one possibility | |
6166 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6167 | * these quirks. | |
6168 | */ | |
6169 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6170 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6171 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6172 | ||
6173 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6174 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6175 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6176 | ||
6da25bf5 | 6177 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6178 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6179 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6180 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6181 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6182 | ||
6da25bf5 | 6183 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6184 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6185 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6186 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6187 | |
6188 | /* Models with Intel GMA900 */ | |
6189 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6190 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6191 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6192 | }; | |
6193 | ||
77775838 HMH |
6194 | /* |
6195 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6196 | * and bright_maxlvl. | |
6197 | */ | |
6198 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6199 | { | |
6200 | unsigned int b; | |
6201 | ||
6202 | vdbg_printk(TPACPI_DBG_INIT, | |
6203 | "detecting firmware brightness interface capabilities\n"); | |
6204 | ||
6205 | /* we could run a quirks check here (same table used by | |
6206 | * brightness_init) if needed */ | |
6207 | ||
6208 | /* | |
6209 | * We always attempt to detect acpi support, so as to switch | |
6210 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6211 | * going to publish a backlight interface | |
6212 | */ | |
6213 | b = tpacpi_check_std_acpi_brightness_support(); | |
6214 | switch (b) { | |
6215 | case 16: | |
6216 | bright_maxlvl = 15; | |
6217 | printk(TPACPI_INFO | |
6218 | "detected a 16-level brightness capable ThinkPad\n"); | |
6219 | break; | |
6220 | case 8: | |
6221 | case 0: | |
6222 | bright_maxlvl = 7; | |
6223 | printk(TPACPI_INFO | |
6224 | "detected a 8-level brightness capable ThinkPad\n"); | |
6225 | break; | |
6226 | default: | |
6227 | printk(TPACPI_ERR | |
6228 | "Unsupported brightness interface, " | |
6229 | "please contact %s\n", TPACPI_MAIL); | |
6230 | tp_features.bright_unkfw = 1; | |
6231 | bright_maxlvl = b - 1; | |
6232 | } | |
6233 | } | |
6234 | ||
a5763f22 | 6235 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6236 | { |
a19a6ee6 | 6237 | struct backlight_properties props; |
56b6aeb0 | 6238 | int b; |
59fe4fe3 | 6239 | unsigned long quirks; |
56b6aeb0 | 6240 | |
fe08bc4b HMH |
6241 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6242 | ||
f432255e HMH |
6243 | mutex_init(&brightness_mutex); |
6244 | ||
59fe4fe3 HMH |
6245 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6246 | ARRAY_SIZE(brightness_quirk_table)); | |
6247 | ||
77775838 HMH |
6248 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6249 | ||
6250 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6251 | if (tp_features.bright_unkfw) | |
6252 | return 1; | |
2dba1b5d | 6253 | |
b5972796 | 6254 | if (!brightness_enable) { |
0e501834 | 6255 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6256 | "brightness support disabled by " |
6257 | "module parameter\n"); | |
6258 | return 1; | |
6259 | } | |
6260 | ||
217f0963 HMH |
6261 | if (acpi_video_backlight_support()) { |
6262 | if (brightness_enable > 1) { | |
6263 | printk(TPACPI_INFO | |
6264 | "Standard ACPI backlight interface " | |
6265 | "available, not loading native one.\n"); | |
6266 | return 1; | |
6267 | } else if (brightness_enable == 1) { | |
6268 | printk(TPACPI_WARN | |
6269 | "Cannot enable backlight brightness support, " | |
6270 | "ACPI is already handling it. Refer to the " | |
6271 | "acpi_backlight kernel parameter\n"); | |
6272 | return 1; | |
6273 | } | |
6274 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
6275 | printk(TPACPI_NOTICE | |
6276 | "Standard ACPI backlight interface not " | |
6277 | "available, thinkpad_acpi native " | |
6278 | "brightness control enabled\n"); | |
6279 | } | |
6280 | ||
0e501834 HMH |
6281 | /* |
6282 | * Check for module parameter bogosity, note that we | |
6283 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6284 | * able to detect "unspecified" | |
6285 | */ | |
6286 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6287 | return -EINVAL; | |
24d3b774 | 6288 | |
0e501834 HMH |
6289 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6290 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6291 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6292 | if (quirks & TPACPI_BRGHT_Q_EC) |
6293 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6294 | else | |
0e501834 | 6295 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6296 | |
0e501834 | 6297 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6298 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6299 | brightness_mode); |
6300 | } | |
24d3b774 | 6301 | |
d7880f10 | 6302 | /* Safety */ |
e28393c0 | 6303 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6304 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6305 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6306 | return -EINVAL; | |
6307 | ||
0e501834 | 6308 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6309 | return 1; |
56b6aeb0 | 6310 | |
a19a6ee6 | 6311 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6312 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6313 | props.max_brightness = bright_maxlvl; |
6314 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6315 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6316 | NULL, NULL, | |
6317 | &ibm_backlight_data, | |
6318 | &props); | |
56b6aeb0 | 6319 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6320 | int rc = PTR_ERR(ibm_backlight_device); |
6321 | ibm_backlight_device = NULL; | |
e0c7dfe7 | 6322 | printk(TPACPI_ERR "Could not register backlight device\n"); |
435c47e2 | 6323 | return rc; |
56b6aeb0 | 6324 | } |
0e501834 HMH |
6325 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6326 | "brightness is supported\n"); | |
56b6aeb0 | 6327 | |
59fe4fe3 HMH |
6328 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
6329 | printk(TPACPI_NOTICE | |
6330 | "brightness: will use unverified default: " | |
6331 | "brightness_mode=%d\n", brightness_mode); | |
6332 | printk(TPACPI_NOTICE | |
6333 | "brightness: please report to %s whether it works well " | |
6334 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
6335 | } | |
6336 | ||
7d9745cf HMH |
6337 | /* Added by mistake in early 2007. Probably useless, but it could |
6338 | * be working around some unknown firmware problem where the value | |
6339 | * read at startup doesn't match the real hardware state... so leave | |
6340 | * it in place just in case */ | |
56b6aeb0 HMH |
6341 | backlight_update_status(ibm_backlight_device); |
6342 | ||
347a2686 HMH |
6343 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6344 | "brightness: registering brightness hotkeys " | |
6345 | "as change notification\n"); | |
6346 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6347 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6348 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6349 | return 0; |
6350 | } | |
6351 | ||
0e501834 HMH |
6352 | static void brightness_suspend(pm_message_t state) |
6353 | { | |
6354 | tpacpi_brightness_checkpoint_nvram(); | |
6355 | } | |
6356 | ||
6357 | static void brightness_shutdown(void) | |
6358 | { | |
6359 | tpacpi_brightness_checkpoint_nvram(); | |
6360 | } | |
6361 | ||
56b6aeb0 HMH |
6362 | static void brightness_exit(void) |
6363 | { | |
6364 | if (ibm_backlight_device) { | |
0e501834 | 6365 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6366 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6367 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6368 | } |
0e501834 HMH |
6369 | |
6370 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6371 | } |
6372 | ||
887965e6 | 6373 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6374 | { |
56b6aeb0 HMH |
6375 | int level; |
6376 | ||
35ff8b9f HMH |
6377 | level = brightness_get(NULL); |
6378 | if (level < 0) { | |
887965e6 | 6379 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6380 | } else { |
887965e6 AD |
6381 | seq_printf(m, "level:\t\t%d\n", level); |
6382 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
6383 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
6384 | bright_maxlvl); | |
56b6aeb0 HMH |
6385 | } |
6386 | ||
887965e6 | 6387 | return 0; |
56b6aeb0 HMH |
6388 | } |
6389 | ||
8acb0250 HM |
6390 | static int brightness_write(char *buf) |
6391 | { | |
6392 | int level; | |
4273af8d | 6393 | int rc; |
1da177e4 | 6394 | char *cmd; |
1da177e4 | 6395 | |
4273af8d HMH |
6396 | level = brightness_get(NULL); |
6397 | if (level < 0) | |
6398 | return level; | |
78f81cc4 | 6399 | |
4273af8d | 6400 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6401 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 6402 | if (level < bright_maxlvl) |
4273af8d | 6403 | level++; |
78f81cc4 | 6404 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6405 | if (level > 0) |
6406 | level--; | |
6407 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 6408 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 6409 | /* new level set */ |
78f81cc4 BD |
6410 | } else |
6411 | return -EINVAL; | |
78f81cc4 BD |
6412 | } |
6413 | ||
0e501834 HMH |
6414 | tpacpi_disclose_usertask("procfs brightness", |
6415 | "set level to %d\n", level); | |
6416 | ||
4273af8d HMH |
6417 | /* |
6418 | * Now we know what the final level should be, so we try to set it. | |
6419 | * Doing it this way makes the syscall restartable in case of EINTR | |
6420 | */ | |
6421 | rc = brightness_set(level); | |
347a2686 HMH |
6422 | if (!rc && ibm_backlight_device) |
6423 | backlight_force_update(ibm_backlight_device, | |
6424 | BACKLIGHT_UPDATE_SYSFS); | |
80a8d122 | 6425 | return (rc == -EINTR)? -ERESTARTSYS : rc; |
78f81cc4 BD |
6426 | } |
6427 | ||
a5763f22 HMH |
6428 | static struct ibm_struct brightness_driver_data = { |
6429 | .name = "brightness", | |
6430 | .read = brightness_read, | |
6431 | .write = brightness_write, | |
6432 | .exit = brightness_exit, | |
0e501834 HMH |
6433 | .suspend = brightness_suspend, |
6434 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6435 | }; |
6436 | ||
56b6aeb0 HMH |
6437 | /************************************************************************* |
6438 | * Volume subdriver | |
6439 | */ | |
fb87a811 | 6440 | |
329e4e18 HMH |
6441 | /* |
6442 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6443 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6444 | * | |
6445 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6446 | * ThinkPads only implement the MUTE gate. | |
6447 | * | |
6448 | * EC register 0x30 | |
6449 | * Bit 6: MUTE (1 mutes sound) | |
6450 | * Bit 3-0: Volume | |
6451 | * Other bits should be zero as far as we know. | |
6452 | * | |
6453 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6454 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6455 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6456 | * and we leave them unchanged. | |
6457 | */ | |
6458 | ||
ff850c33 HMH |
6459 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
6460 | ||
0d204c34 HMH |
6461 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
6462 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
6463 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
6464 | ||
ead510ce | 6465 | static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */ |
0d204c34 HMH |
6466 | static char *alsa_id = "ThinkPadEC"; |
6467 | static int alsa_enable = SNDRV_DEFAULT_ENABLE1; | |
6468 | ||
6469 | struct tpacpi_alsa_data { | |
6470 | struct snd_card *card; | |
6471 | struct snd_ctl_elem_id *ctl_mute_id; | |
6472 | struct snd_ctl_elem_id *ctl_vol_id; | |
6473 | }; | |
6474 | ||
6475 | static struct snd_card *alsa_card; | |
6476 | ||
329e4e18 HMH |
6477 | enum { |
6478 | TP_EC_AUDIO = 0x30, | |
6479 | ||
6480 | /* TP_EC_AUDIO bits */ | |
6481 | TP_EC_AUDIO_MUTESW = 6, | |
6482 | ||
6483 | /* TP_EC_AUDIO bitmasks */ | |
6484 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6485 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6486 | ||
6487 | /* Maximum volume */ | |
6488 | TP_EC_VOLUME_MAX = 14, | |
6489 | }; | |
6490 | ||
6491 | enum tpacpi_volume_access_mode { | |
6492 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6493 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6494 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6495 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6496 | TPACPI_VOL_MODE_MAX | |
6497 | }; | |
6498 | ||
a112ceee HMH |
6499 | enum tpacpi_volume_capabilities { |
6500 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6501 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6502 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6503 | TPACPI_VOL_CAP_MAX | |
6504 | }; | |
6505 | ||
329e4e18 HMH |
6506 | static enum tpacpi_volume_access_mode volume_mode = |
6507 | TPACPI_VOL_MODE_MAX; | |
6508 | ||
a112ceee | 6509 | static enum tpacpi_volume_capabilities volume_capabilities; |
c7ac6291 | 6510 | static int volume_control_allowed; |
f74a27d4 | 6511 | |
329e4e18 HMH |
6512 | /* |
6513 | * Used to syncronize writers to TP_EC_AUDIO and | |
6514 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
6515 | */ | |
6516 | static struct mutex volume_mutex; | |
6517 | ||
6518 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 6519 | { |
329e4e18 HMH |
6520 | u8 lec = 0; |
6521 | u8 b_nvram; | |
a112ceee | 6522 | u8 ec_mask; |
329e4e18 HMH |
6523 | |
6524 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
6525 | return; | |
c7ac6291 HMH |
6526 | if (!volume_control_allowed) |
6527 | return; | |
329e4e18 HMH |
6528 | |
6529 | vdbg_printk(TPACPI_DBG_MIXER, | |
6530 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 6531 | |
a112ceee HMH |
6532 | if (tp_features.mixer_no_level_control) |
6533 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6534 | else | |
6535 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6536 | ||
329e4e18 HMH |
6537 | if (mutex_lock_killable(&volume_mutex) < 0) |
6538 | return; | |
6539 | ||
6540 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6541 | goto unlock; | |
6542 | lec &= ec_mask; | |
6543 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6544 | ||
6545 | if (lec != (b_nvram & ec_mask)) { | |
6546 | /* NVRAM needs update */ | |
6547 | b_nvram &= ~ec_mask; | |
6548 | b_nvram |= lec; | |
6549 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6550 | dbg_printk(TPACPI_DBG_MIXER, | |
6551 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6552 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 6553 | } else { |
329e4e18 HMH |
6554 | vdbg_printk(TPACPI_DBG_MIXER, |
6555 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6556 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
6557 | } |
6558 | ||
329e4e18 HMH |
6559 | unlock: |
6560 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
6561 | } |
6562 | ||
329e4e18 | 6563 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 6564 | { |
329e4e18 | 6565 | u8 s; |
78f81cc4 | 6566 | |
329e4e18 HMH |
6567 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
6568 | return -EIO; | |
78f81cc4 | 6569 | |
329e4e18 | 6570 | *status = s; |
1da177e4 | 6571 | |
329e4e18 | 6572 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 6573 | |
329e4e18 HMH |
6574 | return 0; |
6575 | } | |
78f81cc4 | 6576 | |
329e4e18 HMH |
6577 | static int volume_get_status(u8 *status) |
6578 | { | |
6579 | return volume_get_status_ec(status); | |
6580 | } | |
78f81cc4 | 6581 | |
329e4e18 HMH |
6582 | static int volume_set_status_ec(const u8 status) |
6583 | { | |
6584 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6585 | return -EIO; | |
78f81cc4 | 6586 | |
329e4e18 HMH |
6587 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
6588 | ||
6589 | return 0; | |
6590 | } | |
6591 | ||
6592 | static int volume_set_status(const u8 status) | |
6593 | { | |
6594 | return volume_set_status_ec(status); | |
6595 | } | |
6596 | ||
88cc8377 HMH |
6597 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6598 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
6599 | { |
6600 | int rc; | |
6601 | u8 s, n; | |
6602 | ||
6603 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6604 | return -EINTR; | |
6605 | ||
6606 | rc = volume_get_status_ec(&s); | |
6607 | if (rc) | |
6608 | goto unlock; | |
6609 | ||
6610 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6611 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6612 | ||
88cc8377 | 6613 | if (n != s) { |
329e4e18 | 6614 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6615 | if (!rc) |
6616 | rc = 1; | |
6617 | } | |
329e4e18 HMH |
6618 | |
6619 | unlock: | |
6620 | mutex_unlock(&volume_mutex); | |
6621 | return rc; | |
6622 | } | |
6623 | ||
88cc8377 HMH |
6624 | static int volume_alsa_set_mute(const bool mute) |
6625 | { | |
6626 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
6627 | (mute) ? "" : "un"); | |
6628 | return __volume_set_mute_ec(mute); | |
6629 | } | |
6630 | ||
329e4e18 HMH |
6631 | static int volume_set_mute(const bool mute) |
6632 | { | |
88cc8377 HMH |
6633 | int rc; |
6634 | ||
329e4e18 HMH |
6635 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
6636 | (mute) ? "" : "un"); | |
88cc8377 HMH |
6637 | |
6638 | rc = __volume_set_mute_ec(mute); | |
6639 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
6640 | } |
6641 | ||
88cc8377 HMH |
6642 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6643 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
6644 | { |
6645 | int rc; | |
6646 | u8 s, n; | |
6647 | ||
6648 | if (vol > TP_EC_VOLUME_MAX) | |
6649 | return -EINVAL; | |
6650 | ||
6651 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6652 | return -EINTR; | |
6653 | ||
6654 | rc = volume_get_status_ec(&s); | |
6655 | if (rc) | |
6656 | goto unlock; | |
6657 | ||
6658 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6659 | ||
88cc8377 | 6660 | if (n != s) { |
329e4e18 | 6661 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6662 | if (!rc) |
6663 | rc = 1; | |
6664 | } | |
329e4e18 HMH |
6665 | |
6666 | unlock: | |
6667 | mutex_unlock(&volume_mutex); | |
6668 | return rc; | |
6669 | } | |
6670 | ||
88cc8377 | 6671 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
6672 | { |
6673 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
6674 | "ALSA: trying to set volume level to %hu\n", vol); |
6675 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
6676 | } |
6677 | ||
0d204c34 HMH |
6678 | static void volume_alsa_notify_change(void) |
6679 | { | |
6680 | struct tpacpi_alsa_data *d; | |
6681 | ||
6682 | if (alsa_card && alsa_card->private_data) { | |
6683 | d = alsa_card->private_data; | |
6684 | if (d->ctl_mute_id) | |
6685 | snd_ctl_notify(alsa_card, | |
6686 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6687 | d->ctl_mute_id); | |
6688 | if (d->ctl_vol_id) | |
6689 | snd_ctl_notify(alsa_card, | |
6690 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6691 | d->ctl_vol_id); | |
6692 | } | |
6693 | } | |
6694 | ||
6695 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
6696 | struct snd_ctl_elem_info *uinfo) | |
6697 | { | |
6698 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
6699 | uinfo->count = 1; | |
6700 | uinfo->value.integer.min = 0; | |
6701 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
6702 | return 0; | |
6703 | } | |
6704 | ||
6705 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
6706 | struct snd_ctl_elem_value *ucontrol) | |
6707 | { | |
6708 | u8 s; | |
6709 | int rc; | |
6710 | ||
6711 | rc = volume_get_status(&s); | |
6712 | if (rc < 0) | |
6713 | return rc; | |
6714 | ||
6715 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
6716 | return 0; | |
6717 | } | |
6718 | ||
6719 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
6720 | struct snd_ctl_elem_value *ucontrol) | |
6721 | { | |
38e11cde HMH |
6722 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
6723 | ucontrol->value.integer.value[0]); | |
88cc8377 | 6724 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6725 | } |
6726 | ||
6727 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
6728 | ||
6729 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
6730 | struct snd_ctl_elem_value *ucontrol) | |
6731 | { | |
6732 | u8 s; | |
6733 | int rc; | |
6734 | ||
6735 | rc = volume_get_status(&s); | |
6736 | if (rc < 0) | |
6737 | return rc; | |
6738 | ||
6739 | ucontrol->value.integer.value[0] = | |
6740 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
6741 | return 0; | |
6742 | } | |
6743 | ||
6744 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
6745 | struct snd_ctl_elem_value *ucontrol) | |
6746 | { | |
38e11cde HMH |
6747 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
6748 | ucontrol->value.integer.value[0] ? | |
6749 | "un" : ""); | |
88cc8377 | 6750 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6751 | } |
6752 | ||
6753 | static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = { | |
6754 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6755 | .name = "Console Playback Volume", | |
6756 | .index = 0, | |
6757 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6758 | .info = volume_alsa_vol_info, | |
6759 | .get = volume_alsa_vol_get, | |
6760 | }; | |
6761 | ||
6762 | static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = { | |
6763 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6764 | .name = "Console Playback Switch", | |
6765 | .index = 0, | |
6766 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6767 | .info = volume_alsa_mute_info, | |
6768 | .get = volume_alsa_mute_get, | |
6769 | }; | |
6770 | ||
329e4e18 HMH |
6771 | static void volume_suspend(pm_message_t state) |
6772 | { | |
6773 | tpacpi_volume_checkpoint_nvram(); | |
6774 | } | |
6775 | ||
0d204c34 HMH |
6776 | static void volume_resume(void) |
6777 | { | |
6778 | volume_alsa_notify_change(); | |
6779 | } | |
6780 | ||
329e4e18 HMH |
6781 | static void volume_shutdown(void) |
6782 | { | |
6783 | tpacpi_volume_checkpoint_nvram(); | |
6784 | } | |
6785 | ||
6786 | static void volume_exit(void) | |
6787 | { | |
0d204c34 HMH |
6788 | if (alsa_card) { |
6789 | snd_card_free(alsa_card); | |
6790 | alsa_card = NULL; | |
6791 | } | |
6792 | ||
329e4e18 HMH |
6793 | tpacpi_volume_checkpoint_nvram(); |
6794 | } | |
6795 | ||
0d204c34 HMH |
6796 | static int __init volume_create_alsa_mixer(void) |
6797 | { | |
6798 | struct snd_card *card; | |
6799 | struct tpacpi_alsa_data *data; | |
6800 | struct snd_kcontrol *ctl_vol; | |
6801 | struct snd_kcontrol *ctl_mute; | |
6802 | int rc; | |
6803 | ||
6804 | rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, | |
6805 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 HMH |
6806 | if (rc < 0 || !card) { |
6807 | printk(TPACPI_ERR | |
6808 | "Failed to create ALSA card structures: %d\n", rc); | |
6809 | return 1; | |
6810 | } | |
0d204c34 HMH |
6811 | |
6812 | BUG_ON(!card->private_data); | |
6813 | data = card->private_data; | |
6814 | data->card = card; | |
6815 | ||
6816 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
6817 | sizeof(card->driver)); | |
6818 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
6819 | sizeof(card->shortname)); | |
6820 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
6821 | (thinkpad_id.ec_version_str) ? | |
6822 | thinkpad_id.ec_version_str : "(unknown)"); | |
6823 | snprintf(card->longname, sizeof(card->longname), | |
6824 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
6825 | (thinkpad_id.ec_version_str) ? | |
6826 | thinkpad_id.ec_version_str : "unknown"); | |
6827 | ||
6828 | if (volume_control_allowed) { | |
6829 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
6830 | volume_alsa_control_vol.access = | |
6831 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6832 | ||
6833 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
6834 | volume_alsa_control_mute.access = | |
6835 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6836 | } | |
6837 | ||
6838 | if (!tp_features.mixer_no_level_control) { | |
6839 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
6840 | rc = snd_ctl_add(card, ctl_vol); | |
6841 | if (rc < 0) { | |
6842 | printk(TPACPI_ERR | |
74c75c18 HMH |
6843 | "Failed to create ALSA volume control: %d\n", |
6844 | rc); | |
6845 | goto err_exit; | |
78f81cc4 | 6846 | } |
0d204c34 HMH |
6847 | data->ctl_vol_id = &ctl_vol->id; |
6848 | } | |
78f81cc4 | 6849 | |
0d204c34 HMH |
6850 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
6851 | rc = snd_ctl_add(card, ctl_mute); | |
6852 | if (rc < 0) { | |
74c75c18 HMH |
6853 | printk(TPACPI_ERR "Failed to create ALSA mute control: %d\n", |
6854 | rc); | |
6855 | goto err_exit; | |
0d204c34 HMH |
6856 | } |
6857 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 6858 | |
0d204c34 HMH |
6859 | snd_card_set_dev(card, &tpacpi_pdev->dev); |
6860 | rc = snd_card_register(card); | |
0d204c34 | 6861 | if (rc < 0) { |
74c75c18 HMH |
6862 | printk(TPACPI_ERR "Failed to register ALSA card: %d\n", rc); |
6863 | goto err_exit; | |
0d204c34 HMH |
6864 | } |
6865 | ||
6866 | alsa_card = card; | |
74c75c18 HMH |
6867 | return 0; |
6868 | ||
6869 | err_exit: | |
6870 | snd_card_free(card); | |
6871 | return 1; | |
0d204c34 HMH |
6872 | } |
6873 | ||
a112ceee HMH |
6874 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
6875 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
6876 | ||
6877 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
6878 | /* Whitelist volume level on all IBM by default */ | |
6879 | { .vendor = PCI_VENDOR_ID_IBM, | |
6880 | .bios = TPACPI_MATCH_ANY, | |
6881 | .ec = TPACPI_MATCH_ANY, | |
6882 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
6883 | ||
6884 | /* Lenovo models with volume control (needs confirmation) */ | |
6885 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
6886 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
6887 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
6888 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
6889 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
6890 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
6891 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
6892 | ||
6893 | /* Whitelist mute-only on all Lenovo by default */ | |
6894 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
6895 | .bios = TPACPI_MATCH_ANY, | |
6896 | .ec = TPACPI_MATCH_ANY, | |
6897 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
6898 | }; | |
6899 | ||
329e4e18 HMH |
6900 | static int __init volume_init(struct ibm_init_struct *iibm) |
6901 | { | |
a112ceee | 6902 | unsigned long quirks; |
0d204c34 | 6903 | int rc; |
a112ceee | 6904 | |
329e4e18 HMH |
6905 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
6906 | ||
6907 | mutex_init(&volume_mutex); | |
6908 | ||
6909 | /* | |
6910 | * Check for module parameter bogosity, note that we | |
6911 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
6912 | * able to detect "unspecified" | |
6913 | */ | |
6914 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
6915 | return -EINVAL; | |
6916 | ||
6917 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
6918 | printk(TPACPI_ERR | |
6919 | "UCMS step volume mode not implemented, " | |
6920 | "please contact %s\n", TPACPI_MAIL); | |
6921 | return 1; | |
6922 | } | |
6923 | ||
a112ceee HMH |
6924 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
6925 | return -EINVAL; | |
6926 | ||
0d204c34 HMH |
6927 | /* |
6928 | * The ALSA mixer is our primary interface. | |
6929 | * When disabled, don't install the subdriver at all | |
6930 | */ | |
6931 | if (!alsa_enable) { | |
6932 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6933 | "ALSA mixer disabled by parameter, " | |
6934 | "not loading volume subdriver...\n"); | |
6935 | return 1; | |
6936 | } | |
6937 | ||
a112ceee HMH |
6938 | quirks = tpacpi_check_quirks(volume_quirk_table, |
6939 | ARRAY_SIZE(volume_quirk_table)); | |
6940 | ||
6941 | switch (volume_capabilities) { | |
6942 | case TPACPI_VOL_CAP_AUTO: | |
6943 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
6944 | tp_features.mixer_no_level_control = 1; | |
6945 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
6946 | tp_features.mixer_no_level_control = 0; | |
6947 | else | |
6948 | return 1; /* no mixer */ | |
6949 | break; | |
6950 | case TPACPI_VOL_CAP_VOLMUTE: | |
6951 | tp_features.mixer_no_level_control = 0; | |
6952 | break; | |
6953 | case TPACPI_VOL_CAP_MUTEONLY: | |
6954 | tp_features.mixer_no_level_control = 1; | |
6955 | break; | |
6956 | default: | |
6957 | return 1; | |
6958 | } | |
6959 | ||
6960 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
6961 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6962 | "using user-supplied volume_capabilities=%d\n", | |
6963 | volume_capabilities); | |
6964 | ||
329e4e18 HMH |
6965 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
6966 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
6967 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
6968 | ||
6969 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6970 | "driver auto-selected volume_mode=%d\n", | |
6971 | volume_mode); | |
6972 | } else { | |
6973 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6974 | "using user-supplied volume_mode=%d\n", | |
6975 | volume_mode); | |
6976 | } | |
6977 | ||
6978 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
6979 | "mute is supported, volume control is %s\n", |
6980 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 6981 | |
0d204c34 HMH |
6982 | rc = volume_create_alsa_mixer(); |
6983 | if (rc) { | |
6984 | printk(TPACPI_ERR | |
6985 | "Could not create the ALSA mixer interface\n"); | |
6986 | return rc; | |
6987 | } | |
6988 | ||
c7ac6291 HMH |
6989 | printk(TPACPI_INFO |
6990 | "Console audio control enabled, mode: %s\n", | |
6991 | (volume_control_allowed) ? | |
6992 | "override (read/write)" : | |
6993 | "monitor (read only)"); | |
6994 | ||
0d204c34 HMH |
6995 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
6996 | "registering volume hotkeys as change notification\n"); | |
6997 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6998 | | TP_ACPI_HKEY_VOLUP_MASK | |
6999 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7000 | | TP_ACPI_HKEY_MUTE_MASK); | |
7001 | ||
329e4e18 HMH |
7002 | return 0; |
7003 | } | |
f74a27d4 | 7004 | |
887965e6 | 7005 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7006 | { |
329e4e18 | 7007 | u8 status; |
78f81cc4 | 7008 | |
329e4e18 | 7009 | if (volume_get_status(&status) < 0) { |
887965e6 | 7010 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7011 | } else { |
a112ceee | 7012 | if (tp_features.mixer_no_level_control) |
887965e6 | 7013 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7014 | else |
887965e6 | 7015 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7016 | status & TP_EC_AUDIO_LVL_MSK); |
7017 | ||
887965e6 | 7018 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7019 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7020 | |
c7ac6291 | 7021 | if (volume_control_allowed) { |
887965e6 | 7022 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7023 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 7024 | seq_printf(m, |
c7ac6291 | 7025 | "commands:\tup, down\n"); |
887965e6 | 7026 | seq_printf(m, |
c7ac6291 HMH |
7027 | "commands:\tlevel <level>" |
7028 | " (<level> is 0-%d)\n", | |
7029 | TP_EC_VOLUME_MAX); | |
7030 | } | |
78f81cc4 BD |
7031 | } |
7032 | } | |
7033 | ||
7034 | return 0; | |
7035 | } | |
7036 | ||
78f81cc4 BD |
7037 | static int volume_write(char *buf) |
7038 | { | |
329e4e18 HMH |
7039 | u8 s; |
7040 | u8 new_level, new_mute; | |
7041 | int l; | |
78f81cc4 | 7042 | char *cmd; |
329e4e18 | 7043 | int rc; |
78f81cc4 | 7044 | |
c7ac6291 HMH |
7045 | /* |
7046 | * We do allow volume control at driver startup, so that the | |
7047 | * user can set initial state through the volume=... parameter hack. | |
7048 | */ | |
7049 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7050 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7051 | tp_warned.volume_ctrl_forbidden = 1; | |
7052 | printk(TPACPI_NOTICE | |
7053 | "Console audio control in monitor mode, " | |
7054 | "changes are not allowed.\n"); | |
7055 | printk(TPACPI_NOTICE | |
7056 | "Use the volume_control=1 module parameter " | |
7057 | "to enable volume control\n"); | |
7058 | } | |
7059 | return -EPERM; | |
7060 | } | |
7061 | ||
329e4e18 HMH |
7062 | rc = volume_get_status(&s); |
7063 | if (rc < 0) | |
7064 | return rc; | |
78f81cc4 | 7065 | |
329e4e18 HMH |
7066 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7067 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7068 | ||
7069 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7070 | if (!tp_features.mixer_no_level_control) { |
7071 | if (strlencmp(cmd, "up") == 0) { | |
7072 | if (new_mute) | |
7073 | new_mute = 0; | |
7074 | else if (new_level < TP_EC_VOLUME_MAX) | |
7075 | new_level++; | |
7076 | continue; | |
7077 | } else if (strlencmp(cmd, "down") == 0) { | |
7078 | if (new_mute) | |
7079 | new_mute = 0; | |
7080 | else if (new_level > 0) | |
7081 | new_level--; | |
7082 | continue; | |
7083 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7084 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7085 | new_level = l; | |
7086 | continue; | |
7087 | } | |
7088 | } | |
7089 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7090 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7091 | else if (strlencmp(cmd, "unmute") == 0) |
7092 | new_mute = 0; | |
7093 | else | |
1da177e4 | 7094 | return -EINVAL; |
329e4e18 | 7095 | } |
1da177e4 | 7096 | |
a112ceee HMH |
7097 | if (tp_features.mixer_no_level_control) { |
7098 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7099 | new_mute ? "" : "un"); | |
7100 | rc = volume_set_mute(!!new_mute); | |
7101 | } else { | |
7102 | tpacpi_disclose_usertask("procfs volume", | |
7103 | "%smute and set level to %d\n", | |
7104 | new_mute ? "" : "un", new_level); | |
7105 | rc = volume_set_status(new_mute | new_level); | |
7106 | } | |
0d204c34 | 7107 | volume_alsa_notify_change(); |
78f81cc4 | 7108 | |
329e4e18 | 7109 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7110 | } |
7111 | ||
a5763f22 HMH |
7112 | static struct ibm_struct volume_driver_data = { |
7113 | .name = "volume", | |
7114 | .read = volume_read, | |
7115 | .write = volume_write, | |
329e4e18 HMH |
7116 | .exit = volume_exit, |
7117 | .suspend = volume_suspend, | |
0d204c34 | 7118 | .resume = volume_resume, |
329e4e18 | 7119 | .shutdown = volume_shutdown, |
a5763f22 | 7120 | }; |
56b6aeb0 | 7121 | |
ff850c33 HMH |
7122 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7123 | ||
7124 | #define alsa_card NULL | |
7125 | ||
7126 | static void inline volume_alsa_notify_change(void) | |
7127 | { | |
7128 | } | |
7129 | ||
7130 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7131 | { | |
7132 | printk(TPACPI_INFO | |
7133 | "volume: disabled as there is no ALSA support in this kernel\n"); | |
7134 | ||
7135 | return 1; | |
7136 | } | |
7137 | ||
7138 | static struct ibm_struct volume_driver_data = { | |
7139 | .name = "volume", | |
7140 | }; | |
7141 | ||
7142 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7143 | ||
56b6aeb0 HMH |
7144 | /************************************************************************* |
7145 | * Fan subdriver | |
7146 | */ | |
7147 | ||
7148 | /* | |
7149 | * FAN ACCESS MODES | |
7150 | * | |
efa27145 | 7151 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7152 | * ACPI GFAN method: returns fan level |
7153 | * | |
efa27145 | 7154 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7155 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7156 | * |
efa27145 | 7157 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7158 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7159 | * | |
f51d1a39 HMH |
7160 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7161 | * it for writing. | |
56b6aeb0 | 7162 | * |
efa27145 | 7163 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7164 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7165 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7166 | * |
7167 | * Fan speed changes of any sort (including those caused by the | |
7168 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7169 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7170 | * limited. |
7171 | * | |
7172 | * Reading is not available if GFAN exists. | |
7173 | * Writing is not available if SFAN exists. | |
7174 | * | |
7175 | * Bits | |
7176 | * 7 automatic mode engaged; | |
7177 | * (default operation mode of the ThinkPad) | |
7178 | * fan level is ignored in this mode. | |
f51d1a39 | 7179 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7180 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7181 | * the tachometer while the fan controller ramps up |
7182 | * the speed (which can take up to a few *minutes*). | |
7183 | * Speeds up fan to 100% duty-cycle, which is far above | |
7184 | * the standard RPM levels. It is not impossible that | |
7185 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7186 | * 5-3 unused in some models. Extra bits for fan level |
7187 | * in others, but still useless as all values above | |
7188 | * 7 map to the same speed as level 7 in these models. | |
7189 | * 2-0 fan level (0..7 usually) | |
7190 | * 0x00 = stop | |
7191 | * 0x07 = max (set when temperatures critical) | |
7192 | * Some ThinkPads may have other levels, see | |
efa27145 | 7193 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7194 | * |
7195 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7196 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7197 | * does so, its initial value is meaningless (0x07). |
7198 | * | |
7199 | * For firmware bugs, refer to: | |
7200 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7201 | * | |
7202 | * ---- | |
7203 | * | |
7204 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7205 | * Main fan tachometer reading (in RPM) | |
7206 | * | |
7207 | * This register is present on all ThinkPads with a new-style EC, and | |
7208 | * it is known not to be present on the A21m/e, and T22, as there is | |
7209 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7210 | * ThinkPads from this same time period (and earlier) probably lack the | |
7211 | * tachometer as well. | |
7212 | * | |
877d0310 | 7213 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7214 | * was never fixed by IBM to report the EC firmware version string |
7215 | * probably support the tachometer (like the early X models), so | |
7216 | * detecting it is quite hard. We need more data to know for sure. | |
7217 | * | |
7218 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7219 | * might result. | |
7220 | * | |
f51d1a39 HMH |
7221 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7222 | * mode. | |
56b6aeb0 HMH |
7223 | * |
7224 | * For firmware bugs, refer to: | |
7225 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7226 | * | |
d7377247 HMH |
7227 | * ---- |
7228 | * | |
7229 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7230 | * | |
7231 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7232 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7233 | * is one, the tachometer registers show the speed of the auxiliary | |
7234 | * fan. | |
7235 | * | |
7236 | * Fan control seems to affect both fans, regardless of the state | |
7237 | * of this bit. | |
7238 | * | |
7239 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7240 | * seem to support this (firmware TP-7M). | |
7241 | * | |
efa27145 | 7242 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7243 | * ThinkPad X31, X40, X41. Not available in the X60. |
7244 | * | |
7245 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7246 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7247 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7248 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7249 | * | |
7250 | * The speeds are stored on handles | |
7251 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7252 | * | |
af901ca1 | 7253 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7254 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7255 | * | |
7256 | * ACPI DSDT switches which set is in use depending on various | |
7257 | * factors. | |
7258 | * | |
efa27145 | 7259 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7260 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7261 | * but the ACPI tables just mention level 7. | |
7262 | */ | |
7263 | ||
f74a27d4 HMH |
7264 | enum { /* Fan control constants */ |
7265 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7266 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7267 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7268 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7269 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7270 | |
7271 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7272 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7273 | ||
7274 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7275 | }; | |
7276 | ||
7277 | enum fan_status_access_mode { | |
7278 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7279 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7280 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7281 | }; | |
7282 | ||
7283 | enum fan_control_access_mode { | |
7284 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7285 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7286 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7287 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7288 | }; | |
7289 | ||
7290 | enum fan_control_commands { | |
7291 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7292 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7293 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7294 | * and also watchdog cmd */ | |
7295 | }; | |
7296 | ||
7297 | static int fan_control_allowed; | |
7298 | ||
69ba91cb HMH |
7299 | static enum fan_status_access_mode fan_status_access_mode; |
7300 | static enum fan_control_access_mode fan_control_access_mode; | |
7301 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7302 | |
778b4d74 | 7303 | static u8 fan_control_initial_status; |
fe98a52c | 7304 | static u8 fan_control_desired_level; |
0081b162 | 7305 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7306 | static int fan_watchdog_maxinterval; |
7307 | ||
7308 | static struct mutex fan_mutex; | |
778b4d74 | 7309 | |
25c68a33 | 7310 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7311 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7312 | |
e0c7dfe7 HMH |
7313 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7314 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7315 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7316 | ); /* all others */ | |
e0c7dfe7 | 7317 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7318 | "JFNS", /* 770x-JL */ |
7319 | ); /* all others */ | |
7320 | ||
1c2ece75 HMH |
7321 | /* |
7322 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7323 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7324 | * be in auto mode (0x80). | |
7325 | * | |
7326 | * This is corrected by any write to HFSP either by the driver, or | |
7327 | * by the firmware. | |
7328 | * | |
7329 | * We assume 0x07 really means auto mode while this quirk is active, | |
7330 | * as this is far more likely than the ThinkPad being in level 7, | |
7331 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7332 | * |
7333 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7334 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7335 | */ |
7336 | ||
7d95a3d5 | 7337 | static void fan_quirk1_setup(void) |
1c2ece75 | 7338 | { |
1c2ece75 | 7339 | if (fan_control_initial_status == 0x07) { |
7d95a3d5 HMH |
7340 | printk(TPACPI_NOTICE |
7341 | "fan_init: initial fan status is unknown, " | |
7342 | "assuming it is in auto mode\n"); | |
7343 | tp_features.fan_ctrl_status_undef = 1; | |
1c2ece75 HMH |
7344 | } |
7345 | } | |
7346 | ||
7347 | static void fan_quirk1_handle(u8 *fan_status) | |
7348 | { | |
7349 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7350 | if (*fan_status != fan_control_initial_status) { | |
7351 | /* something changed the HFSP regisnter since | |
7352 | * driver init time, so it is not undefined | |
7353 | * anymore */ | |
7354 | tp_features.fan_ctrl_status_undef = 0; | |
7355 | } else { | |
7356 | /* Return most likely status. In fact, it | |
7357 | * might be the only possible status */ | |
7358 | *fan_status = TP_EC_FAN_AUTO; | |
7359 | } | |
7360 | } | |
7361 | } | |
7362 | ||
d7377247 HMH |
7363 | /* Select main fan on X60/X61, NOOP on others */ |
7364 | static bool fan_select_fan1(void) | |
7365 | { | |
7366 | if (tp_features.second_fan) { | |
7367 | u8 val; | |
7368 | ||
7369 | if (ec_read(fan_select_offset, &val) < 0) | |
7370 | return false; | |
7371 | val &= 0xFEU; | |
7372 | if (ec_write(fan_select_offset, val) < 0) | |
7373 | return false; | |
7374 | } | |
7375 | return true; | |
7376 | } | |
7377 | ||
7378 | /* Select secondary fan on X60/X61 */ | |
7379 | static bool fan_select_fan2(void) | |
7380 | { | |
7381 | u8 val; | |
7382 | ||
7383 | if (!tp_features.second_fan) | |
7384 | return false; | |
7385 | ||
7386 | if (ec_read(fan_select_offset, &val) < 0) | |
7387 | return false; | |
7388 | val |= 0x01U; | |
7389 | if (ec_write(fan_select_offset, val) < 0) | |
7390 | return false; | |
7391 | ||
7392 | return true; | |
7393 | } | |
7394 | ||
fe98a52c | 7395 | /* |
b21a15f6 | 7396 | * Call with fan_mutex held |
fe98a52c | 7397 | */ |
b21a15f6 | 7398 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7399 | { |
b21a15f6 HMH |
7400 | if ((status & |
7401 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7402 | if (status > 7) | |
7403 | fan_control_desired_level = 7; | |
7404 | else | |
7405 | fan_control_desired_level = status; | |
7406 | } | |
7407 | } | |
fe98a52c | 7408 | |
b21a15f6 HMH |
7409 | static int fan_get_status(u8 *status) |
7410 | { | |
7411 | u8 s; | |
fe98a52c | 7412 | |
b21a15f6 HMH |
7413 | /* TODO: |
7414 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7415 | |
b21a15f6 HMH |
7416 | switch (fan_status_access_mode) { |
7417 | case TPACPI_FAN_RD_ACPI_GFAN: | |
7418 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 7419 | |
b21a15f6 HMH |
7420 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
7421 | return -EIO; | |
fe98a52c | 7422 | |
b21a15f6 HMH |
7423 | if (likely(status)) |
7424 | *status = s & 0x07; | |
fe98a52c | 7425 | |
b21a15f6 HMH |
7426 | break; |
7427 | ||
7428 | case TPACPI_FAN_RD_TPEC: | |
7429 | /* all except 570, 600e/x, 770e, 770x */ | |
7430 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7431 | return -EIO; | |
7432 | ||
1c2ece75 | 7433 | if (likely(status)) { |
b21a15f6 | 7434 | *status = s; |
1c2ece75 HMH |
7435 | fan_quirk1_handle(status); |
7436 | } | |
fe98a52c | 7437 | |
fe98a52c | 7438 | break; |
b21a15f6 | 7439 | |
fe98a52c | 7440 | default: |
b21a15f6 | 7441 | return -ENXIO; |
fe98a52c HMH |
7442 | } |
7443 | ||
b21a15f6 HMH |
7444 | return 0; |
7445 | } | |
fe98a52c | 7446 | |
b21a15f6 HMH |
7447 | static int fan_get_status_safe(u8 *status) |
7448 | { | |
7449 | int rc; | |
7450 | u8 s; | |
fe98a52c | 7451 | |
7646ea88 | 7452 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7453 | return -ERESTARTSYS; |
7454 | rc = fan_get_status(&s); | |
7455 | if (!rc) | |
7456 | fan_update_desired_level(s); | |
7457 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7458 | |
b21a15f6 HMH |
7459 | if (status) |
7460 | *status = s; | |
fe98a52c | 7461 | |
b21a15f6 HMH |
7462 | return rc; |
7463 | } | |
7464 | ||
7465 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7466 | { |
b21a15f6 | 7467 | u8 hi, lo; |
fe98a52c | 7468 | |
b21a15f6 HMH |
7469 | switch (fan_status_access_mode) { |
7470 | case TPACPI_FAN_RD_TPEC: | |
7471 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7472 | if (unlikely(!fan_select_fan1())) |
7473 | return -EIO; | |
b21a15f6 HMH |
7474 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7475 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7476 | return -EIO; | |
fe98a52c | 7477 | |
b21a15f6 HMH |
7478 | if (likely(speed)) |
7479 | *speed = (hi << 8) | lo; | |
fe98a52c | 7480 | |
b21a15f6 | 7481 | break; |
fe98a52c | 7482 | |
b21a15f6 HMH |
7483 | default: |
7484 | return -ENXIO; | |
7485 | } | |
fe98a52c | 7486 | |
b21a15f6 | 7487 | return 0; |
fe98a52c HMH |
7488 | } |
7489 | ||
d7377247 HMH |
7490 | static int fan2_get_speed(unsigned int *speed) |
7491 | { | |
7492 | u8 hi, lo; | |
7493 | bool rc; | |
7494 | ||
7495 | switch (fan_status_access_mode) { | |
7496 | case TPACPI_FAN_RD_TPEC: | |
7497 | /* all except 570, 600e/x, 770e, 770x */ | |
7498 | if (unlikely(!fan_select_fan2())) | |
7499 | return -EIO; | |
7500 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7501 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7502 | fan_select_fan1(); /* play it safe */ | |
7503 | if (rc) | |
7504 | return -EIO; | |
7505 | ||
7506 | if (likely(speed)) | |
7507 | *speed = (hi << 8) | lo; | |
7508 | ||
7509 | break; | |
7510 | ||
7511 | default: | |
7512 | return -ENXIO; | |
7513 | } | |
7514 | ||
7515 | return 0; | |
7516 | } | |
7517 | ||
b21a15f6 | 7518 | static int fan_set_level(int level) |
fe98a52c | 7519 | { |
b21a15f6 HMH |
7520 | if (!fan_control_allowed) |
7521 | return -EPERM; | |
fe98a52c | 7522 | |
b21a15f6 HMH |
7523 | switch (fan_control_access_mode) { |
7524 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7525 | if (level >= 0 && level <= 7) { | |
7526 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7527 | return -EIO; | |
7528 | } else | |
7529 | return -EINVAL; | |
7530 | break; | |
fe98a52c | 7531 | |
b21a15f6 HMH |
7532 | case TPACPI_FAN_WR_ACPI_FANS: |
7533 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7534 | if (!(level & TP_EC_FAN_AUTO) && |
7535 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7536 | ((level < 0) || (level > 7))) |
7537 | return -EINVAL; | |
fe98a52c | 7538 | |
b21a15f6 HMH |
7539 | /* safety net should the EC not support AUTO |
7540 | * or FULLSPEED mode bits and just ignore them */ | |
7541 | if (level & TP_EC_FAN_FULLSPEED) | |
7542 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7543 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7544 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7545 | |
b21a15f6 HMH |
7546 | if (!acpi_ec_write(fan_status_offset, level)) |
7547 | return -EIO; | |
7548 | else | |
7549 | tp_features.fan_ctrl_status_undef = 0; | |
7550 | break; | |
fe98a52c | 7551 | |
b21a15f6 HMH |
7552 | default: |
7553 | return -ENXIO; | |
7554 | } | |
74a60c0f HMH |
7555 | |
7556 | vdbg_printk(TPACPI_DBG_FAN, | |
7557 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7558 | return 0; |
fe98a52c HMH |
7559 | } |
7560 | ||
b21a15f6 | 7561 | static int fan_set_level_safe(int level) |
fe98a52c | 7562 | { |
b21a15f6 | 7563 | int rc; |
fe98a52c | 7564 | |
b21a15f6 HMH |
7565 | if (!fan_control_allowed) |
7566 | return -EPERM; | |
fe98a52c | 7567 | |
7646ea88 | 7568 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7569 | return -ERESTARTSYS; |
fe98a52c | 7570 | |
b21a15f6 HMH |
7571 | if (level == TPACPI_FAN_LAST_LEVEL) |
7572 | level = fan_control_desired_level; | |
fe98a52c | 7573 | |
b21a15f6 HMH |
7574 | rc = fan_set_level(level); |
7575 | if (!rc) | |
7576 | fan_update_desired_level(level); | |
7577 | ||
7578 | mutex_unlock(&fan_mutex); | |
7579 | return rc; | |
fe98a52c HMH |
7580 | } |
7581 | ||
b21a15f6 | 7582 | static int fan_set_enable(void) |
fe98a52c | 7583 | { |
b21a15f6 HMH |
7584 | u8 s; |
7585 | int rc; | |
fe98a52c | 7586 | |
ecf2a80a HMH |
7587 | if (!fan_control_allowed) |
7588 | return -EPERM; | |
7589 | ||
7646ea88 | 7590 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7591 | return -ERESTARTSYS; |
fe98a52c | 7592 | |
b21a15f6 HMH |
7593 | switch (fan_control_access_mode) { |
7594 | case TPACPI_FAN_WR_ACPI_FANS: | |
7595 | case TPACPI_FAN_WR_TPEC: | |
7596 | rc = fan_get_status(&s); | |
7597 | if (rc < 0) | |
7598 | break; | |
fe98a52c | 7599 | |
b21a15f6 HMH |
7600 | /* Don't go out of emergency fan mode */ |
7601 | if (s != 7) { | |
7602 | s &= 0x07; | |
7603 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7604 | } | |
fe98a52c | 7605 | |
b21a15f6 HMH |
7606 | if (!acpi_ec_write(fan_status_offset, s)) |
7607 | rc = -EIO; | |
7608 | else { | |
7609 | tp_features.fan_ctrl_status_undef = 0; | |
7610 | rc = 0; | |
7611 | } | |
7612 | break; | |
fe98a52c | 7613 | |
b21a15f6 HMH |
7614 | case TPACPI_FAN_WR_ACPI_SFAN: |
7615 | rc = fan_get_status(&s); | |
7616 | if (rc < 0) | |
7617 | break; | |
fe98a52c | 7618 | |
b21a15f6 | 7619 | s &= 0x07; |
fe98a52c | 7620 | |
b21a15f6 HMH |
7621 | /* Set fan to at least level 4 */ |
7622 | s |= 4; | |
fe08bc4b | 7623 | |
b21a15f6 | 7624 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7625 | rc = -EIO; |
b21a15f6 HMH |
7626 | else |
7627 | rc = 0; | |
7628 | break; | |
78f81cc4 | 7629 | |
b21a15f6 HMH |
7630 | default: |
7631 | rc = -ENXIO; | |
7632 | } | |
5fba344c | 7633 | |
b21a15f6 | 7634 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7635 | |
7636 | if (!rc) | |
7637 | vdbg_printk(TPACPI_DBG_FAN, | |
7638 | "fan control: set fan control register to 0x%02x\n", | |
7639 | s); | |
b21a15f6 | 7640 | return rc; |
69ba91cb | 7641 | } |
78f81cc4 | 7642 | |
b21a15f6 | 7643 | static int fan_set_disable(void) |
78f81cc4 | 7644 | { |
b21a15f6 | 7645 | int rc; |
c52f0aa5 | 7646 | |
b21a15f6 HMH |
7647 | if (!fan_control_allowed) |
7648 | return -EPERM; | |
78f81cc4 | 7649 | |
7646ea88 | 7650 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7651 | return -ERESTARTSYS; |
3ef8a609 | 7652 | |
b21a15f6 HMH |
7653 | rc = 0; |
7654 | switch (fan_control_access_mode) { | |
7655 | case TPACPI_FAN_WR_ACPI_FANS: | |
7656 | case TPACPI_FAN_WR_TPEC: | |
7657 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7658 | rc = -EIO; | |
7659 | else { | |
7660 | fan_control_desired_level = 0; | |
7661 | tp_features.fan_ctrl_status_undef = 0; | |
7662 | } | |
3ef8a609 HMH |
7663 | break; |
7664 | ||
b21a15f6 HMH |
7665 | case TPACPI_FAN_WR_ACPI_SFAN: |
7666 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7667 | rc = -EIO; | |
7668 | else | |
7669 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7670 | break; |
7671 | ||
7672 | default: | |
b21a15f6 | 7673 | rc = -ENXIO; |
78f81cc4 BD |
7674 | } |
7675 | ||
74a60c0f HMH |
7676 | if (!rc) |
7677 | vdbg_printk(TPACPI_DBG_FAN, | |
7678 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7679 | |
fe98a52c | 7680 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7681 | return rc; |
7682 | } | |
7683 | ||
b21a15f6 | 7684 | static int fan_set_speed(int speed) |
c52f0aa5 | 7685 | { |
b21a15f6 | 7686 | int rc; |
c52f0aa5 | 7687 | |
b21a15f6 HMH |
7688 | if (!fan_control_allowed) |
7689 | return -EPERM; | |
3ef8a609 | 7690 | |
7646ea88 | 7691 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7692 | return -ERESTARTSYS; |
c52f0aa5 | 7693 | |
b21a15f6 HMH |
7694 | rc = 0; |
7695 | switch (fan_control_access_mode) { | |
7696 | case TPACPI_FAN_WR_ACPI_FANS: | |
7697 | if (speed >= 0 && speed <= 65535) { | |
7698 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
7699 | speed, speed, speed)) | |
7700 | rc = -EIO; | |
7701 | } else | |
7702 | rc = -EINVAL; | |
c52f0aa5 HMH |
7703 | break; |
7704 | ||
7705 | default: | |
b21a15f6 | 7706 | rc = -ENXIO; |
c52f0aa5 HMH |
7707 | } |
7708 | ||
b21a15f6 HMH |
7709 | mutex_unlock(&fan_mutex); |
7710 | return rc; | |
16663a87 HMH |
7711 | } |
7712 | ||
7713 | static void fan_watchdog_reset(void) | |
7714 | { | |
94954cc6 | 7715 | static int fan_watchdog_active; |
16663a87 | 7716 | |
4985cd0a HMH |
7717 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
7718 | return; | |
7719 | ||
16663a87 HMH |
7720 | if (fan_watchdog_active) |
7721 | cancel_delayed_work(&fan_watchdog_task); | |
7722 | ||
8fef502e HMH |
7723 | if (fan_watchdog_maxinterval > 0 && |
7724 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 7725 | fan_watchdog_active = 1; |
e0e3c061 | 7726 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
7727 | msecs_to_jiffies(fan_watchdog_maxinterval |
7728 | * 1000))) { | |
35ff8b9f | 7729 | printk(TPACPI_ERR |
e0e3c061 | 7730 | "failed to queue the fan watchdog, " |
16663a87 HMH |
7731 | "watchdog will not trigger\n"); |
7732 | } | |
7733 | } else | |
7734 | fan_watchdog_active = 0; | |
7735 | } | |
7736 | ||
b21a15f6 | 7737 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 7738 | { |
b21a15f6 | 7739 | int rc; |
18ad7996 | 7740 | |
b21a15f6 HMH |
7741 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
7742 | return; | |
a12095c2 | 7743 | |
e0c7dfe7 | 7744 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
7745 | rc = fan_set_enable(); |
7746 | if (rc < 0) { | |
e0c7dfe7 | 7747 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
7748 | "will try again later...\n", -rc); |
7749 | /* reschedule for later */ | |
7750 | fan_watchdog_reset(); | |
7751 | } | |
7752 | } | |
eaa7571b | 7753 | |
b21a15f6 HMH |
7754 | /* |
7755 | * SYSFS fan layout: hwmon compatible (device) | |
7756 | * | |
7757 | * pwm*_enable: | |
7758 | * 0: "disengaged" mode | |
7759 | * 1: manual mode | |
7760 | * 2: native EC "auto" mode (recommended, hardware default) | |
7761 | * | |
7762 | * pwm*: set speed in manual mode, ignored otherwise. | |
7763 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
7764 | * interpolation. | |
7765 | * | |
7766 | * fan*_input: tachometer reading, RPM | |
7767 | * | |
7768 | * | |
7769 | * SYSFS fan layout: extensions | |
7770 | * | |
7771 | * fan_watchdog (driver): | |
7772 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
7773 | */ | |
7774 | ||
7775 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
7776 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
7777 | struct device_attribute *attr, | |
7778 | char *buf) | |
7779 | { | |
7780 | int res, mode; | |
7781 | u8 status; | |
7782 | ||
7783 | res = fan_get_status_safe(&status); | |
7784 | if (res) | |
7785 | return res; | |
7786 | ||
b21a15f6 HMH |
7787 | if (status & TP_EC_FAN_FULLSPEED) { |
7788 | mode = 0; | |
7789 | } else if (status & TP_EC_FAN_AUTO) { | |
7790 | mode = 2; | |
7791 | } else | |
7792 | mode = 1; | |
7793 | ||
7794 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
7795 | } | |
a12095c2 | 7796 | |
b21a15f6 HMH |
7797 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
7798 | struct device_attribute *attr, | |
7799 | const char *buf, size_t count) | |
7800 | { | |
7801 | unsigned long t; | |
7802 | int res, level; | |
7803 | ||
7804 | if (parse_strtoul(buf, 2, &t)) | |
7805 | return -EINVAL; | |
7806 | ||
74a60c0f HMH |
7807 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
7808 | "set fan mode to %lu\n", t); | |
7809 | ||
b21a15f6 HMH |
7810 | switch (t) { |
7811 | case 0: | |
7812 | level = TP_EC_FAN_FULLSPEED; | |
7813 | break; | |
7814 | case 1: | |
7815 | level = TPACPI_FAN_LAST_LEVEL; | |
7816 | break; | |
7817 | case 2: | |
7818 | level = TP_EC_FAN_AUTO; | |
7819 | break; | |
7820 | case 3: | |
7821 | /* reserved for software-controlled auto mode */ | |
7822 | return -ENOSYS; | |
18ad7996 | 7823 | default: |
b21a15f6 | 7824 | return -EINVAL; |
18ad7996 | 7825 | } |
b21a15f6 HMH |
7826 | |
7827 | res = fan_set_level_safe(level); | |
7828 | if (res == -ENXIO) | |
7829 | return -EINVAL; | |
7830 | else if (res < 0) | |
7831 | return res; | |
7832 | ||
7833 | fan_watchdog_reset(); | |
7834 | ||
7835 | return count; | |
18ad7996 HMH |
7836 | } |
7837 | ||
b21a15f6 HMH |
7838 | static struct device_attribute dev_attr_fan_pwm1_enable = |
7839 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
7840 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
7841 | ||
7842 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
7843 | static ssize_t fan_pwm1_show(struct device *dev, | |
7844 | struct device_attribute *attr, | |
7845 | char *buf) | |
fe98a52c | 7846 | { |
b21a15f6 HMH |
7847 | int res; |
7848 | u8 status; | |
fe98a52c | 7849 | |
b21a15f6 HMH |
7850 | res = fan_get_status_safe(&status); |
7851 | if (res) | |
7852 | return res; | |
ecf2a80a | 7853 | |
b21a15f6 HMH |
7854 | if ((status & |
7855 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
7856 | status = fan_control_desired_level; | |
fe98a52c | 7857 | |
b21a15f6 HMH |
7858 | if (status > 7) |
7859 | status = 7; | |
fe98a52c | 7860 | |
b21a15f6 | 7861 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
7862 | } |
7863 | ||
b21a15f6 HMH |
7864 | static ssize_t fan_pwm1_store(struct device *dev, |
7865 | struct device_attribute *attr, | |
7866 | const char *buf, size_t count) | |
18ad7996 | 7867 | { |
b21a15f6 | 7868 | unsigned long s; |
1c6a334e | 7869 | int rc; |
b21a15f6 | 7870 | u8 status, newlevel; |
1c6a334e | 7871 | |
b21a15f6 HMH |
7872 | if (parse_strtoul(buf, 255, &s)) |
7873 | return -EINVAL; | |
7874 | ||
74a60c0f HMH |
7875 | tpacpi_disclose_usertask("hwmon pwm1", |
7876 | "set fan speed to %lu\n", s); | |
7877 | ||
b21a15f6 HMH |
7878 | /* scale down from 0-255 to 0-7 */ |
7879 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 7880 | |
7646ea88 | 7881 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 7882 | return -ERESTARTSYS; |
40ca9fdf | 7883 | |
b21a15f6 HMH |
7884 | rc = fan_get_status(&status); |
7885 | if (!rc && (status & | |
7886 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7887 | rc = fan_set_level(newlevel); | |
7888 | if (rc == -ENXIO) | |
7889 | rc = -EINVAL; | |
7890 | else if (!rc) { | |
7891 | fan_update_desired_level(newlevel); | |
7892 | fan_watchdog_reset(); | |
eaa7571b | 7893 | } |
b21a15f6 | 7894 | } |
1c6a334e | 7895 | |
b21a15f6 HMH |
7896 | mutex_unlock(&fan_mutex); |
7897 | return (rc)? rc : count; | |
7898 | } | |
1c6a334e | 7899 | |
b21a15f6 HMH |
7900 | static struct device_attribute dev_attr_fan_pwm1 = |
7901 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
7902 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 7903 | |
b21a15f6 HMH |
7904 | /* sysfs fan fan1_input ------------------------------------------------ */ |
7905 | static ssize_t fan_fan1_input_show(struct device *dev, | |
7906 | struct device_attribute *attr, | |
7907 | char *buf) | |
7908 | { | |
7909 | int res; | |
7910 | unsigned int speed; | |
1c6a334e | 7911 | |
b21a15f6 HMH |
7912 | res = fan_get_speed(&speed); |
7913 | if (res < 0) | |
7914 | return res; | |
1c6a334e | 7915 | |
b21a15f6 HMH |
7916 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
7917 | } | |
18ad7996 | 7918 | |
b21a15f6 HMH |
7919 | static struct device_attribute dev_attr_fan_fan1_input = |
7920 | __ATTR(fan1_input, S_IRUGO, | |
7921 | fan_fan1_input_show, NULL); | |
40ca9fdf | 7922 | |
d7377247 HMH |
7923 | /* sysfs fan fan2_input ------------------------------------------------ */ |
7924 | static ssize_t fan_fan2_input_show(struct device *dev, | |
7925 | struct device_attribute *attr, | |
7926 | char *buf) | |
7927 | { | |
7928 | int res; | |
7929 | unsigned int speed; | |
7930 | ||
7931 | res = fan2_get_speed(&speed); | |
7932 | if (res < 0) | |
7933 | return res; | |
7934 | ||
7935 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
7936 | } | |
7937 | ||
7938 | static struct device_attribute dev_attr_fan_fan2_input = | |
7939 | __ATTR(fan2_input, S_IRUGO, | |
7940 | fan_fan2_input_show, NULL); | |
7941 | ||
b21a15f6 HMH |
7942 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
7943 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
7944 | char *buf) | |
7945 | { | |
7946 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
7947 | } |
7948 | ||
b21a15f6 HMH |
7949 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
7950 | const char *buf, size_t count) | |
18ad7996 | 7951 | { |
b21a15f6 HMH |
7952 | unsigned long t; |
7953 | ||
7954 | if (parse_strtoul(buf, 120, &t)) | |
7955 | return -EINVAL; | |
40ca9fdf | 7956 | |
ecf2a80a HMH |
7957 | if (!fan_control_allowed) |
7958 | return -EPERM; | |
7959 | ||
b21a15f6 HMH |
7960 | fan_watchdog_maxinterval = t; |
7961 | fan_watchdog_reset(); | |
40ca9fdf | 7962 | |
74a60c0f HMH |
7963 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
7964 | ||
b21a15f6 HMH |
7965 | return count; |
7966 | } | |
7967 | ||
7968 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
7969 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
7970 | ||
7971 | /* --------------------------------------------------------------------- */ | |
7972 | static struct attribute *fan_attributes[] = { | |
7973 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
7974 | &dev_attr_fan_fan1_input.attr, | |
d7377247 | 7975 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
7976 | NULL |
7977 | }; | |
7978 | ||
7979 | static const struct attribute_group fan_attr_group = { | |
7980 | .attrs = fan_attributes, | |
7981 | }; | |
7982 | ||
d7377247 HMH |
7983 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
7984 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
7985 | |
7986 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
7987 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
7988 | .bios = TPACPI_MATCH_ANY, \ | |
7989 | .ec = TPID(__id1, __id2), \ | |
7990 | .quirks = __quirks } | |
7991 | ||
d7377247 HMH |
7992 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
7993 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
7994 | .bios = TPACPI_MATCH_ANY, \ | |
7995 | .ec = TPID(__id1, __id2), \ | |
7996 | .quirks = __quirks } | |
7997 | ||
7d95a3d5 HMH |
7998 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
7999 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8000 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8001 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8002 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8003 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8004 | }; |
8005 | ||
d7377247 | 8006 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8007 | #undef TPACPI_FAN_QI |
8008 | ||
b21a15f6 HMH |
8009 | static int __init fan_init(struct ibm_init_struct *iibm) |
8010 | { | |
8011 | int rc; | |
7d95a3d5 | 8012 | unsigned long quirks; |
b21a15f6 | 8013 | |
74a60c0f HMH |
8014 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8015 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8016 | |
8017 | mutex_init(&fan_mutex); | |
8018 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8019 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8020 | fan_control_commands = 0; | |
8021 | fan_watchdog_maxinterval = 0; | |
8022 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8023 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8024 | fan_control_desired_level = 7; |
8025 | ||
e28393c0 HMH |
8026 | if (tpacpi_is_ibm()) { |
8027 | TPACPI_ACPIHANDLE_INIT(fans); | |
8028 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8029 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8030 | } | |
b21a15f6 | 8031 | |
7d95a3d5 HMH |
8032 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8033 | ARRAY_SIZE(fan_quirk_table)); | |
8034 | ||
b21a15f6 HMH |
8035 | if (gfan_handle) { |
8036 | /* 570, 600e/x, 770e, 770x */ | |
8037 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8038 | } else { | |
8039 | /* all other ThinkPads: note that even old-style | |
8040 | * ThinkPad ECs supports the fan control register */ | |
8041 | if (likely(acpi_ec_read(fan_status_offset, | |
8042 | &fan_control_initial_status))) { | |
8043 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8044 | if (quirks & TPACPI_FAN_Q1) |
8045 | fan_quirk1_setup(); | |
d7377247 HMH |
8046 | if (quirks & TPACPI_FAN_2FAN) { |
8047 | tp_features.second_fan = 1; | |
8048 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8049 | "secondary fan support enabled\n"); | |
8050 | } | |
b21a15f6 | 8051 | } else { |
e0c7dfe7 | 8052 | printk(TPACPI_ERR |
b21a15f6 HMH |
8053 | "ThinkPad ACPI EC access misbehaving, " |
8054 | "fan status and control unavailable\n"); | |
8055 | return 1; | |
8056 | } | |
8057 | } | |
8058 | ||
8059 | if (sfan_handle) { | |
8060 | /* 570, 770x-JL */ | |
8061 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8062 | fan_control_commands |= | |
8063 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8064 | } else { | |
8065 | if (!gfan_handle) { | |
8066 | /* gfan without sfan means no fan control */ | |
8067 | /* all other models implement TP EC 0x2f control */ | |
8068 | ||
8069 | if (fans_handle) { | |
8070 | /* X31, X40, X41 */ | |
8071 | fan_control_access_mode = | |
8072 | TPACPI_FAN_WR_ACPI_FANS; | |
8073 | fan_control_commands |= | |
8074 | TPACPI_FAN_CMD_SPEED | | |
8075 | TPACPI_FAN_CMD_LEVEL | | |
8076 | TPACPI_FAN_CMD_ENABLE; | |
8077 | } else { | |
8078 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8079 | fan_control_commands |= | |
8080 | TPACPI_FAN_CMD_LEVEL | | |
8081 | TPACPI_FAN_CMD_ENABLE; | |
8082 | } | |
fe98a52c | 8083 | } |
b21a15f6 | 8084 | } |
18ad7996 | 8085 | |
74a60c0f HMH |
8086 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8087 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8088 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8089 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8090 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8091 | |
b21a15f6 HMH |
8092 | /* fan control master switch */ |
8093 | if (!fan_control_allowed) { | |
8094 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8095 | fan_control_commands = 0; | |
74a60c0f | 8096 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8097 | "fan control features disabled by parameter\n"); |
18ad7996 | 8098 | } |
40ca9fdf | 8099 | |
b21a15f6 HMH |
8100 | /* update fan_control_desired_level */ |
8101 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8102 | fan_get_status_safe(NULL); | |
fe98a52c | 8103 | |
b21a15f6 HMH |
8104 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8105 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8106 | if (tp_features.second_fan) { |
8107 | /* attach second fan tachometer */ | |
8108 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
8109 | &dev_attr_fan_fan2_input.attr; | |
8110 | } | |
b21a15f6 HMH |
8111 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8112 | &fan_attr_group); | |
b21a15f6 HMH |
8113 | if (rc < 0) |
8114 | return rc; | |
9c0a76e1 HMH |
8115 | |
8116 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8117 | &driver_attr_fan_watchdog); | |
8118 | if (rc < 0) { | |
8119 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8120 | &fan_attr_group); | |
8121 | return rc; | |
8122 | } | |
b21a15f6 HMH |
8123 | return 0; |
8124 | } else | |
8125 | return 1; | |
56b6aeb0 HMH |
8126 | } |
8127 | ||
b21a15f6 | 8128 | static void fan_exit(void) |
56b6aeb0 | 8129 | { |
74a60c0f | 8130 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8131 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8132 | |
b21a15f6 HMH |
8133 | /* FIXME: can we really do this unconditionally? */ |
8134 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8135 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8136 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8137 | |
b21a15f6 | 8138 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8139 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8140 | } |
8141 | ||
75700e53 HMH |
8142 | static void fan_suspend(pm_message_t state) |
8143 | { | |
0081b162 HMH |
8144 | int rc; |
8145 | ||
75700e53 HMH |
8146 | if (!fan_control_allowed) |
8147 | return; | |
8148 | ||
8149 | /* Store fan status in cache */ | |
0081b162 HMH |
8150 | fan_control_resume_level = 0; |
8151 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8152 | if (rc < 0) | |
8153 | printk(TPACPI_NOTICE | |
8154 | "failed to read fan level for later " | |
8155 | "restore during resume: %d\n", rc); | |
8156 | ||
8157 | /* if it is undefined, don't attempt to restore it. | |
8158 | * KEEP THIS LAST */ | |
75700e53 | 8159 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8160 | fan_control_resume_level = 0; |
75700e53 HMH |
8161 | } |
8162 | ||
8163 | static void fan_resume(void) | |
8164 | { | |
75700e53 HMH |
8165 | u8 current_level = 7; |
8166 | bool do_set = false; | |
0081b162 | 8167 | int rc; |
75700e53 HMH |
8168 | |
8169 | /* DSDT *always* updates status on resume */ | |
8170 | tp_features.fan_ctrl_status_undef = 0; | |
8171 | ||
75700e53 | 8172 | if (!fan_control_allowed || |
0081b162 | 8173 | !fan_control_resume_level || |
75700e53 HMH |
8174 | (fan_get_status_safe(¤t_level) < 0)) |
8175 | return; | |
8176 | ||
8177 | switch (fan_control_access_mode) { | |
8178 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8179 | /* never decrease fan level */ |
8180 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8181 | break; |
8182 | case TPACPI_FAN_WR_ACPI_FANS: | |
8183 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8184 | /* never decrease fan level, scale is: |
8185 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8186 | * | |
8187 | * We expect the firmware to set either 7 or AUTO, but we | |
8188 | * handle FULLSPEED out of paranoia. | |
8189 | * | |
8190 | * So, we can safely only restore FULLSPEED or 7, anything | |
8191 | * else could slow the fan. Restoring AUTO is useless, at | |
8192 | * best that's exactly what the DSDT already set (it is the | |
8193 | * slower it uses). | |
8194 | * | |
8195 | * Always keep in mind that the DSDT *will* have set the | |
8196 | * fans to what the vendor supposes is the best level. We | |
8197 | * muck with it only to speed the fan up. | |
8198 | */ | |
8199 | if (fan_control_resume_level != 7 && | |
8200 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8201 | return; | |
8202 | else | |
8203 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8204 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8205 | break; |
8206 | default: | |
8207 | return; | |
8208 | } | |
8209 | if (do_set) { | |
8210 | printk(TPACPI_NOTICE | |
8211 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
8212 | fan_control_resume_level); |
8213 | rc = fan_set_level_safe(fan_control_resume_level); | |
8214 | if (rc < 0) | |
8215 | printk(TPACPI_NOTICE | |
8216 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
8217 | } |
8218 | } | |
8219 | ||
887965e6 | 8220 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8221 | { |
56b6aeb0 HMH |
8222 | int rc; |
8223 | u8 status; | |
8224 | unsigned int speed = 0; | |
8225 | ||
8226 | switch (fan_status_access_mode) { | |
efa27145 | 8227 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8228 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8229 | rc = fan_get_status_safe(&status); |
8230 | if (rc < 0) | |
56b6aeb0 HMH |
8231 | return rc; |
8232 | ||
887965e6 | 8233 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8234 | "level:\t\t%d\n", |
8235 | (status != 0) ? "enabled" : "disabled", status); | |
8236 | break; | |
8237 | ||
efa27145 | 8238 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8239 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8240 | rc = fan_get_status_safe(&status); |
8241 | if (rc < 0) | |
56b6aeb0 HMH |
8242 | return rc; |
8243 | ||
887965e6 | 8244 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8245 | (status != 0) ? "enabled" : "disabled"); |
8246 | ||
35ff8b9f HMH |
8247 | rc = fan_get_speed(&speed); |
8248 | if (rc < 0) | |
56b6aeb0 HMH |
8249 | return rc; |
8250 | ||
887965e6 | 8251 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8252 | |
efa27145 | 8253 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8254 | /* Disengaged mode takes precedence */ |
887965e6 | 8255 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8256 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8257 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8258 | else |
887965e6 | 8259 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8260 | break; |
8261 | ||
efa27145 | 8262 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8263 | default: |
887965e6 | 8264 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8265 | } |
8266 | ||
efa27145 | 8267 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8268 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8269 | |
8270 | switch (fan_control_access_mode) { | |
efa27145 | 8271 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8272 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8273 | break; |
8274 | ||
8275 | default: | |
887965e6 | 8276 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8277 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8278 | break; |
8279 | } | |
8280 | } | |
18ad7996 | 8281 | |
efa27145 | 8282 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8283 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8284 | "commands:\twatchdog <timeout> (<timeout> " |
8285 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8286 | |
efa27145 | 8287 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8288 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8289 | " (<speed> is 0-65535)\n"); |
8290 | ||
887965e6 | 8291 | return 0; |
78f81cc4 BD |
8292 | } |
8293 | ||
18ad7996 HMH |
8294 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8295 | { | |
8296 | int level; | |
8297 | ||
a12095c2 | 8298 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8299 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8300 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8301 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8302 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8303 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8304 | return 0; |
8305 | ||
35ff8b9f HMH |
8306 | *rc = fan_set_level_safe(level); |
8307 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8308 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 | 8309 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8310 | else if (!*rc) |
8311 | tpacpi_disclose_usertask("procfs fan", | |
8312 | "set level to %d\n", level); | |
18ad7996 HMH |
8313 | |
8314 | return 1; | |
8315 | } | |
8316 | ||
8317 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8318 | { | |
8319 | if (strlencmp(cmd, "enable") != 0) | |
8320 | return 0; | |
8321 | ||
35ff8b9f HMH |
8322 | *rc = fan_set_enable(); |
8323 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8324 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 | 8325 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8326 | else if (!*rc) |
8327 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8328 | |
8329 | return 1; | |
8330 | } | |
8331 | ||
8332 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8333 | { | |
8334 | if (strlencmp(cmd, "disable") != 0) | |
8335 | return 0; | |
8336 | ||
35ff8b9f HMH |
8337 | *rc = fan_set_disable(); |
8338 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8339 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 | 8340 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8341 | else if (!*rc) |
8342 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8343 | |
8344 | return 1; | |
8345 | } | |
8346 | ||
8347 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8348 | { | |
8349 | int speed; | |
8350 | ||
a8b7a662 HMH |
8351 | /* TODO: |
8352 | * Support speed <low> <medium> <high> ? */ | |
8353 | ||
18ad7996 HMH |
8354 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8355 | return 0; | |
8356 | ||
35ff8b9f HMH |
8357 | *rc = fan_set_speed(speed); |
8358 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8359 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 | 8360 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8361 | else if (!*rc) |
8362 | tpacpi_disclose_usertask("procfs fan", | |
8363 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8364 | |
8365 | return 1; | |
8366 | } | |
8367 | ||
16663a87 HMH |
8368 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8369 | { | |
8370 | int interval; | |
8371 | ||
8372 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8373 | return 0; | |
8374 | ||
8375 | if (interval < 0 || interval > 120) | |
8376 | *rc = -EINVAL; | |
74a60c0f | 8377 | else { |
16663a87 | 8378 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8379 | tpacpi_disclose_usertask("procfs fan", |
8380 | "set watchdog timer to %d\n", | |
8381 | interval); | |
8382 | } | |
16663a87 HMH |
8383 | |
8384 | return 1; | |
8385 | } | |
8386 | ||
18ad7996 HMH |
8387 | static int fan_write(char *buf) |
8388 | { | |
8389 | char *cmd; | |
8390 | int rc = 0; | |
8391 | ||
8392 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8393 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8394 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8395 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8396 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8397 | fan_write_cmd_disable(cmd, &rc) || |
8398 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8399 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8400 | fan_write_cmd_speed(cmd, &rc)) |
8401 | ) | |
8402 | rc = -EINVAL; | |
16663a87 HMH |
8403 | else if (!rc) |
8404 | fan_watchdog_reset(); | |
18ad7996 HMH |
8405 | } |
8406 | ||
8407 | return rc; | |
8408 | } | |
8409 | ||
a5763f22 HMH |
8410 | static struct ibm_struct fan_driver_data = { |
8411 | .name = "fan", | |
8412 | .read = fan_read, | |
8413 | .write = fan_write, | |
8414 | .exit = fan_exit, | |
75700e53 HMH |
8415 | .suspend = fan_suspend, |
8416 | .resume = fan_resume, | |
a5763f22 HMH |
8417 | }; |
8418 | ||
56b6aeb0 HMH |
8419 | /**************************************************************************** |
8420 | **************************************************************************** | |
8421 | * | |
8422 | * Infrastructure | |
8423 | * | |
8424 | **************************************************************************** | |
8425 | ****************************************************************************/ | |
8426 | ||
8b468c0c HMH |
8427 | /* |
8428 | * HKEY event callout for other subdrivers go here | |
8429 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8430 | */ | |
8431 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8432 | { | |
347a2686 HMH |
8433 | if (ibm_backlight_device) { |
8434 | switch (hkey_event) { | |
8435 | case TP_HKEY_EV_BRGHT_UP: | |
8436 | case TP_HKEY_EV_BRGHT_DOWN: | |
8437 | tpacpi_brightness_notify_change(); | |
8438 | } | |
8439 | } | |
0d204c34 HMH |
8440 | if (alsa_card) { |
8441 | switch (hkey_event) { | |
8442 | case TP_HKEY_EV_VOL_UP: | |
8443 | case TP_HKEY_EV_VOL_DOWN: | |
8444 | case TP_HKEY_EV_VOL_MUTE: | |
8445 | volume_alsa_notify_change(); | |
8446 | } | |
8447 | } | |
8b468c0c HMH |
8448 | } |
8449 | ||
8b468c0c HMH |
8450 | static void hotkey_driver_event(const unsigned int scancode) |
8451 | { | |
67bcae6e | 8452 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8453 | } |
8454 | ||
7fd40029 HMH |
8455 | /* sysfs name ---------------------------------------------------------- */ |
8456 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8457 | struct device_attribute *attr, | |
8458 | char *buf) | |
8459 | { | |
e0c7dfe7 | 8460 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8461 | } |
8462 | ||
8463 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
8464 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
8465 | ||
8466 | /* --------------------------------------------------------------------- */ | |
8467 | ||
56b6aeb0 | 8468 | /* /proc support */ |
94954cc6 | 8469 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8470 | |
56b6aeb0 HMH |
8471 | /* |
8472 | * Module and infrastructure proble, init and exit handling | |
8473 | */ | |
1da177e4 | 8474 | |
b21a15f6 HMH |
8475 | static int force_load; |
8476 | ||
fe08bc4b | 8477 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8478 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8479 | { |
a5763f22 | 8480 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8481 | |
a5763f22 | 8482 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8483 | } |
8484 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8485 | ||
b21a15f6 HMH |
8486 | static void ibm_exit(struct ibm_struct *ibm) |
8487 | { | |
8488 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8489 | ||
8490 | list_del_init(&ibm->all_drivers); | |
8491 | ||
8492 | if (ibm->flags.acpi_notify_installed) { | |
8493 | dbg_printk(TPACPI_DBG_EXIT, | |
8494 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8495 | BUG_ON(!ibm->acpi); | |
8496 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8497 | ibm->acpi->type, | |
8498 | dispatch_acpi_notify); | |
8499 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
8500 | } |
8501 | ||
8502 | if (ibm->flags.proc_created) { | |
8503 | dbg_printk(TPACPI_DBG_EXIT, | |
8504 | "%s: remove_proc_entry\n", ibm->name); | |
8505 | remove_proc_entry(ibm->name, proc_dir); | |
8506 | ibm->flags.proc_created = 0; | |
8507 | } | |
8508 | ||
8509 | if (ibm->flags.acpi_driver_registered) { | |
8510 | dbg_printk(TPACPI_DBG_EXIT, | |
8511 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8512 | BUG_ON(!ibm->acpi); | |
8513 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8514 | kfree(ibm->acpi->driver); | |
8515 | ibm->acpi->driver = NULL; | |
8516 | ibm->flags.acpi_driver_registered = 0; | |
8517 | } | |
8518 | ||
8519 | if (ibm->flags.init_called && ibm->exit) { | |
8520 | ibm->exit(); | |
8521 | ibm->flags.init_called = 0; | |
8522 | } | |
8523 | ||
8524 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8525 | } | |
f74a27d4 | 8526 | |
a5763f22 | 8527 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8528 | { |
8529 | int ret; | |
a5763f22 | 8530 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8531 | struct proc_dir_entry *entry; |
8532 | ||
a5763f22 HMH |
8533 | BUG_ON(ibm == NULL); |
8534 | ||
8535 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8536 | ||
92641177 | 8537 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8538 | return 0; |
8539 | ||
fe08bc4b HMH |
8540 | dbg_printk(TPACPI_DBG_INIT, |
8541 | "probing for %s\n", ibm->name); | |
8542 | ||
a5763f22 HMH |
8543 | if (iibm->init) { |
8544 | ret = iibm->init(iibm); | |
5fba344c HMH |
8545 | if (ret > 0) |
8546 | return 0; /* probe failed */ | |
8547 | if (ret) | |
1da177e4 | 8548 | return ret; |
a5763f22 | 8549 | |
92641177 | 8550 | ibm->flags.init_called = 1; |
1da177e4 LT |
8551 | } |
8552 | ||
8d376cd6 HMH |
8553 | if (ibm->acpi) { |
8554 | if (ibm->acpi->hid) { | |
8555 | ret = register_tpacpi_subdriver(ibm); | |
8556 | if (ret) | |
8557 | goto err_out; | |
8558 | } | |
5fba344c | 8559 | |
8d376cd6 HMH |
8560 | if (ibm->acpi->notify) { |
8561 | ret = setup_acpi_notify(ibm); | |
8562 | if (ret == -ENODEV) { | |
e0c7dfe7 | 8563 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
8564 | ibm->name); |
8565 | ret = 0; | |
8566 | goto err_out; | |
8567 | } | |
8568 | if (ret < 0) | |
8569 | goto err_out; | |
5fba344c | 8570 | } |
5fba344c HMH |
8571 | } |
8572 | ||
fe08bc4b HMH |
8573 | dbg_printk(TPACPI_DBG_INIT, |
8574 | "%s installed\n", ibm->name); | |
8575 | ||
78f81cc4 | 8576 | if (ibm->read) { |
b525c06c | 8577 | mode_t mode = iibm->base_procfs_mode; |
887965e6 | 8578 | |
b525c06c HMH |
8579 | if (!mode) |
8580 | mode = S_IRUGO; | |
887965e6 AD |
8581 | if (ibm->write) |
8582 | mode |= S_IWUSR; | |
8583 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
8584 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 8585 | if (!entry) { |
e0c7dfe7 | 8586 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 8587 | ibm->name); |
5fba344c HMH |
8588 | ret = -ENODEV; |
8589 | goto err_out; | |
78f81cc4 | 8590 | } |
92641177 | 8591 | ibm->flags.proc_created = 1; |
78f81cc4 | 8592 | } |
1da177e4 | 8593 | |
a5763f22 HMH |
8594 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8595 | ||
1da177e4 | 8596 | return 0; |
5fba344c HMH |
8597 | |
8598 | err_out: | |
fe08bc4b HMH |
8599 | dbg_printk(TPACPI_DBG_INIT, |
8600 | "%s: at error exit path with result %d\n", | |
8601 | ibm->name, ret); | |
8602 | ||
5fba344c HMH |
8603 | ibm_exit(ibm); |
8604 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
8605 | } |
8606 | ||
56b6aeb0 HMH |
8607 | /* Probing */ |
8608 | ||
050df107 HMH |
8609 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8610 | { | |
8611 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
8612 | } | |
8613 | ||
8614 | /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ | |
8615 | static bool __pure __init tpacpi_is_valid_fw_id(const char* const s, | |
8616 | const char t) | |
8617 | { | |
8618 | return s && strlen(s) >= 8 && | |
8619 | tpacpi_is_fw_digit(s[0]) && | |
8620 | tpacpi_is_fw_digit(s[1]) && | |
8621 | s[2] == t && s[3] == 'T' && | |
8622 | tpacpi_is_fw_digit(s[4]) && | |
b569ab39 | 8623 | tpacpi_is_fw_digit(s[5]); |
050df107 HMH |
8624 | } |
8625 | ||
bf20e740 HMH |
8626 | /* returns 0 - probe ok, or < 0 - probe error. |
8627 | * Probe ok doesn't mean thinkpad found. | |
8628 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
8629 | static int __must_check __init get_thinkpad_model_data( | |
8630 | struct thinkpad_id_data *tp) | |
1da177e4 | 8631 | { |
1855256c | 8632 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 8633 | char ec_fw_string[18]; |
bf20e740 | 8634 | char const *s; |
1da177e4 | 8635 | |
d5a2f2f1 | 8636 | if (!tp) |
bf20e740 | 8637 | return -EINVAL; |
d5a2f2f1 HMH |
8638 | |
8639 | memset(tp, 0, sizeof(*tp)); | |
8640 | ||
8641 | if (dmi_name_in_vendors("IBM")) | |
8642 | tp->vendor = PCI_VENDOR_ID_IBM; | |
8643 | else if (dmi_name_in_vendors("LENOVO")) | |
8644 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
8645 | else | |
bf20e740 | 8646 | return 0; |
d5a2f2f1 | 8647 | |
bf20e740 HMH |
8648 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
8649 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
8650 | if (s && !tp->bios_version_str) | |
8651 | return -ENOMEM; | |
050df107 HMH |
8652 | |
8653 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
8654 | if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E')) | |
bf20e740 | 8655 | return 0; |
050df107 | 8656 | |
d5a2f2f1 HMH |
8657 | tp->bios_model = tp->bios_version_str[0] |
8658 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
8659 | tp->bios_release = (tp->bios_version_str[4] << 8) |
8660 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 8661 | |
56b6aeb0 HMH |
8662 | /* |
8663 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
8664 | * X32 or newer, all Z series; Some models must have an | |
8665 | * up-to-date BIOS or they will not be detected. | |
8666 | * | |
8667 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8668 | */ | |
8669 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
8670 | if (sscanf(dev->name, | |
8671 | "IBM ThinkPad Embedded Controller -[%17c", | |
8672 | ec_fw_string) == 1) { | |
8673 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
8674 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
8675 | |
8676 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
8677 | if (!tp->ec_version_str) |
8678 | return -ENOMEM; | |
050df107 HMH |
8679 | |
8680 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
8681 | tp->ec_model = ec_fw_string[0] | |
8682 | | (ec_fw_string[1] << 8); | |
8683 | tp->ec_release = (ec_fw_string[4] << 8) | |
8684 | | ec_fw_string[5]; | |
8685 | } else { | |
8686 | printk(TPACPI_NOTICE | |
8687 | "ThinkPad firmware release %s " | |
8688 | "doesn't match the known patterns\n", | |
8689 | ec_fw_string); | |
8690 | printk(TPACPI_NOTICE | |
8691 | "please report this to %s\n", | |
8692 | TPACPI_MAIL); | |
8693 | } | |
d5a2f2f1 | 8694 | break; |
78f81cc4 | 8695 | } |
1da177e4 | 8696 | } |
d5a2f2f1 | 8697 | |
bf20e740 HMH |
8698 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
8699 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
8700 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
8701 | if (!tp->model_str) | |
8702 | return -ENOMEM; | |
d5a2f2f1 | 8703 | } |
8c74adbc | 8704 | |
bf20e740 HMH |
8705 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
8706 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
8707 | if (s && !tp->nummodel_str) | |
8708 | return -ENOMEM; | |
8709 | ||
8710 | return 0; | |
1da177e4 LT |
8711 | } |
8712 | ||
5fba344c HMH |
8713 | static int __init probe_for_thinkpad(void) |
8714 | { | |
8715 | int is_thinkpad; | |
8716 | ||
8717 | if (acpi_disabled) | |
8718 | return -ENODEV; | |
8719 | ||
e28393c0 HMH |
8720 | /* It would be dangerous to run the driver in this case */ |
8721 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
8722 | return -ENODEV; | |
8723 | ||
5fba344c HMH |
8724 | /* |
8725 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 8726 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 8727 | */ |
e675abaf HMH |
8728 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
8729 | (thinkpad_id.ec_model != 0) || | |
8730 | tpacpi_is_fw_known(); | |
5fba344c | 8731 | |
437e470c HMH |
8732 | /* The EC handler is required */ |
8733 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
8734 | if (!ec_handle) { |
8735 | if (is_thinkpad) | |
e0c7dfe7 | 8736 | printk(TPACPI_ERR |
5fba344c HMH |
8737 | "Not yet supported ThinkPad detected!\n"); |
8738 | return -ENODEV; | |
8739 | } | |
8740 | ||
0dcef77c HMH |
8741 | if (!is_thinkpad && !force_load) |
8742 | return -ENODEV; | |
8743 | ||
5fba344c HMH |
8744 | return 0; |
8745 | } | |
8746 | ||
7a43f788 HMH |
8747 | static void __init thinkpad_acpi_init_banner(void) |
8748 | { | |
8749 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); | |
8750 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
8751 | ||
8752 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", | |
8753 | (thinkpad_id.bios_version_str) ? | |
8754 | thinkpad_id.bios_version_str : "unknown", | |
8755 | (thinkpad_id.ec_version_str) ? | |
8756 | thinkpad_id.ec_version_str : "unknown"); | |
8757 | ||
8758 | BUG_ON(!thinkpad_id.vendor); | |
8759 | ||
8760 | if (thinkpad_id.model_str) | |
8761 | printk(TPACPI_INFO "%s %s, model %s\n", | |
8762 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
8763 | "IBM" : ((thinkpad_id.vendor == | |
8764 | PCI_VENDOR_ID_LENOVO) ? | |
8765 | "Lenovo" : "Unknown vendor"), | |
8766 | thinkpad_id.model_str, | |
8767 | (thinkpad_id.nummodel_str) ? | |
8768 | thinkpad_id.nummodel_str : "unknown"); | |
8769 | } | |
5fba344c | 8770 | |
56b6aeb0 | 8771 | /* Module init, exit, parameters */ |
1da177e4 | 8772 | |
a5763f22 HMH |
8773 | static struct ibm_init_struct ibms_init[] __initdata = { |
8774 | { | |
a5763f22 HMH |
8775 | .data = &thinkpad_acpi_driver_data, |
8776 | }, | |
8777 | { | |
8778 | .init = hotkey_init, | |
8779 | .data = &hotkey_driver_data, | |
8780 | }, | |
8781 | { | |
8782 | .init = bluetooth_init, | |
8783 | .data = &bluetooth_driver_data, | |
8784 | }, | |
8785 | { | |
8786 | .init = wan_init, | |
8787 | .data = &wan_driver_data, | |
8788 | }, | |
0045c0aa HMH |
8789 | { |
8790 | .init = uwb_init, | |
8791 | .data = &uwb_driver_data, | |
8792 | }, | |
d7c1d17d | 8793 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
8794 | { |
8795 | .init = video_init, | |
b525c06c | 8796 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
8797 | .data = &video_driver_data, |
8798 | }, | |
d7c1d17d | 8799 | #endif |
a5763f22 HMH |
8800 | { |
8801 | .init = light_init, | |
8802 | .data = &light_driver_data, | |
8803 | }, | |
a5763f22 HMH |
8804 | { |
8805 | .init = cmos_init, | |
8806 | .data = &cmos_driver_data, | |
8807 | }, | |
8808 | { | |
8809 | .init = led_init, | |
8810 | .data = &led_driver_data, | |
8811 | }, | |
8812 | { | |
8813 | .init = beep_init, | |
8814 | .data = &beep_driver_data, | |
8815 | }, | |
8816 | { | |
8817 | .init = thermal_init, | |
8818 | .data = &thermal_driver_data, | |
8819 | }, | |
a5763f22 HMH |
8820 | { |
8821 | .init = brightness_init, | |
8822 | .data = &brightness_driver_data, | |
8823 | }, | |
8824 | { | |
329e4e18 | 8825 | .init = volume_init, |
a5763f22 HMH |
8826 | .data = &volume_driver_data, |
8827 | }, | |
8828 | { | |
8829 | .init = fan_init, | |
8830 | .data = &fan_driver_data, | |
8831 | }, | |
8832 | }; | |
8833 | ||
3945ac36 | 8834 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
8835 | { |
8836 | unsigned int i; | |
a5763f22 | 8837 | struct ibm_struct *ibm; |
1da177e4 | 8838 | |
59f91ff1 HMH |
8839 | if (!kp || !kp->name || !val) |
8840 | return -EINVAL; | |
8841 | ||
a5763f22 HMH |
8842 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
8843 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
8844 | WARN_ON(ibm == NULL); |
8845 | ||
8846 | if (!ibm || !ibm->name) | |
8847 | continue; | |
a5763f22 HMH |
8848 | |
8849 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
8850 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 8851 | return -ENOSPC; |
a5763f22 HMH |
8852 | strcpy(ibms_init[i].param, val); |
8853 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
8854 | return 0; |
8855 | } | |
a5763f22 | 8856 | } |
1da177e4 | 8857 | |
1da177e4 LT |
8858 | return -EINVAL; |
8859 | } | |
8860 | ||
b09c7225 | 8861 | module_param(experimental, int, 0444); |
f68080f8 | 8862 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 8863 | "Enables experimental features when non-zero"); |
56b6aeb0 | 8864 | |
132ce091 | 8865 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 8866 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 8867 | |
b09c7225 | 8868 | module_param(force_load, bool, 0444); |
f68080f8 | 8869 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
8870 | "Attempts to load the driver even on a " |
8871 | "mis-identified ThinkPad when true"); | |
0dcef77c | 8872 | |
b09c7225 | 8873 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 8874 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 8875 | "Enables setting fan parameters features when true"); |
ecf2a80a | 8876 | |
b09c7225 | 8877 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 8878 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 8879 | "Selects brightness control strategy: " |
0e501834 | 8880 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 8881 | |
b09c7225 | 8882 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 8883 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 8884 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 8885 | |
b09c7225 | 8886 | module_param(hotkey_report_mode, uint, 0444); |
f68080f8 | 8887 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
8888 | "used for backwards compatibility with userspace, " |
8889 | "see documentation"); | |
ff80f137 | 8890 | |
ff850c33 | 8891 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
8892 | module_param_named(volume_mode, volume_mode, uint, 0444); |
8893 | MODULE_PARM_DESC(volume_mode, | |
8894 | "Selects volume control strategy: " | |
8895 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
8896 | ||
a112ceee HMH |
8897 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
8898 | MODULE_PARM_DESC(volume_capabilities, | |
8899 | "Selects the mixer capabilites: " | |
8900 | "0=auto, 1=volume and mute, 2=mute only"); | |
8901 | ||
c7ac6291 HMH |
8902 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
8903 | MODULE_PARM_DESC(volume_control, | |
8904 | "Enables software override for the console audio " | |
8905 | "control when true"); | |
8906 | ||
0d204c34 HMH |
8907 | /* ALSA module API parameters */ |
8908 | module_param_named(index, alsa_index, int, 0444); | |
8909 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
8910 | module_param_named(id, alsa_id, charp, 0444); | |
8911 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
8912 | module_param_named(enable, alsa_enable, bool, 0444); | |
8913 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 8914 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 8915 | |
e0c7dfe7 | 8916 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 8917 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 8918 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 8919 | "at module load, see documentation") |
1da177e4 | 8920 | |
e0c7dfe7 HMH |
8921 | TPACPI_PARAM(hotkey); |
8922 | TPACPI_PARAM(bluetooth); | |
8923 | TPACPI_PARAM(video); | |
8924 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
8925 | TPACPI_PARAM(cmos); |
8926 | TPACPI_PARAM(led); | |
8927 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
8928 | TPACPI_PARAM(brightness); |
8929 | TPACPI_PARAM(volume); | |
8930 | TPACPI_PARAM(fan); | |
78f81cc4 | 8931 | |
a73f3091 | 8932 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 8933 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
8934 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
8935 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
8936 | MODULE_PARM_DESC(wlsw_state, | |
8937 | "Initial state of the emulated WLSW switch"); | |
8938 | ||
b09c7225 | 8939 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
8940 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
8941 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
8942 | MODULE_PARM_DESC(bluetooth_state, | |
8943 | "Initial state of the emulated bluetooth switch"); | |
8944 | ||
b09c7225 | 8945 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
8946 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
8947 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
8948 | MODULE_PARM_DESC(wwan_state, | |
8949 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 8950 | |
b09c7225 | 8951 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
8952 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
8953 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
8954 | MODULE_PARM_DESC(uwb_state, | |
8955 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
8956 | #endif |
8957 | ||
b21a15f6 HMH |
8958 | static void thinkpad_acpi_module_exit(void) |
8959 | { | |
8960 | struct ibm_struct *ibm, *itmp; | |
8961 | ||
8962 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
8963 | ||
8964 | list_for_each_entry_safe_reverse(ibm, itmp, | |
8965 | &tpacpi_all_drivers, | |
8966 | all_drivers) { | |
8967 | ibm_exit(ibm); | |
8968 | } | |
8969 | ||
8970 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
8971 | ||
8972 | if (tpacpi_inputdev) { | |
8973 | if (tp_features.input_device_registered) | |
8974 | input_unregister_device(tpacpi_inputdev); | |
8975 | else | |
8976 | input_free_device(tpacpi_inputdev); | |
8977 | } | |
8978 | ||
8979 | if (tpacpi_hwmon) | |
8980 | hwmon_device_unregister(tpacpi_hwmon); | |
8981 | ||
8982 | if (tp_features.sensors_pdev_attrs_registered) | |
8983 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
8984 | &dev_attr_thinkpad_acpi_pdev_name); | |
8985 | if (tpacpi_sensors_pdev) | |
8986 | platform_device_unregister(tpacpi_sensors_pdev); | |
8987 | if (tpacpi_pdev) | |
8988 | platform_device_unregister(tpacpi_pdev); | |
8989 | ||
8990 | if (tp_features.sensors_pdrv_attrs_registered) | |
8991 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
8992 | if (tp_features.platform_drv_attrs_registered) | |
8993 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
8994 | ||
8995 | if (tp_features.sensors_pdrv_registered) | |
8996 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
8997 | ||
8998 | if (tp_features.platform_drv_registered) | |
8999 | platform_driver_unregister(&tpacpi_pdriver); | |
9000 | ||
9001 | if (proc_dir) | |
e0c7dfe7 | 9002 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9003 | |
e0e3c061 HMH |
9004 | if (tpacpi_wq) |
9005 | destroy_workqueue(tpacpi_wq); | |
9006 | ||
b21a15f6 HMH |
9007 | kfree(thinkpad_id.bios_version_str); |
9008 | kfree(thinkpad_id.ec_version_str); | |
9009 | kfree(thinkpad_id.model_str); | |
9010 | } | |
9011 | ||
f74a27d4 | 9012 | |
1def7115 | 9013 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9014 | { |
9015 | int ret, i; | |
9016 | ||
8fef502e HMH |
9017 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9018 | ||
ff80f137 HMH |
9019 | /* Parameter checking */ |
9020 | if (hotkey_report_mode > 2) | |
9021 | return -EINVAL; | |
9022 | ||
54ae1501 | 9023 | /* Driver-level probe */ |
d5a2f2f1 | 9024 | |
bf20e740 HMH |
9025 | ret = get_thinkpad_model_data(&thinkpad_id); |
9026 | if (ret) { | |
9027 | printk(TPACPI_ERR | |
9028 | "unable to get DMI data: %d\n", ret); | |
9029 | thinkpad_acpi_module_exit(); | |
9030 | return ret; | |
9031 | } | |
5fba344c | 9032 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9033 | if (ret) { |
9034 | thinkpad_acpi_module_exit(); | |
5fba344c | 9035 | return ret; |
d5a2f2f1 | 9036 | } |
1da177e4 | 9037 | |
54ae1501 | 9038 | /* Driver initialization */ |
d5a2f2f1 | 9039 | |
7a43f788 HMH |
9040 | thinkpad_acpi_init_banner(); |
9041 | tpacpi_check_outdated_fw(); | |
9042 | ||
e0c7dfe7 HMH |
9043 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9044 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9045 | |
e0e3c061 HMH |
9046 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9047 | if (!tpacpi_wq) { | |
9048 | thinkpad_acpi_module_exit(); | |
9049 | return -ENOMEM; | |
9050 | } | |
9051 | ||
e0c7dfe7 | 9052 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9053 | if (!proc_dir) { |
35ff8b9f HMH |
9054 | printk(TPACPI_ERR |
9055 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 9056 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9057 | return -ENODEV; |
9058 | } | |
78f81cc4 | 9059 | |
54ae1501 HMH |
9060 | ret = platform_driver_register(&tpacpi_pdriver); |
9061 | if (ret) { | |
35ff8b9f HMH |
9062 | printk(TPACPI_ERR |
9063 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
9064 | thinkpad_acpi_module_exit(); |
9065 | return ret; | |
9066 | } | |
ac36393d HMH |
9067 | tp_features.platform_drv_registered = 1; |
9068 | ||
7fd40029 HMH |
9069 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9070 | if (ret) { | |
35ff8b9f HMH |
9071 | printk(TPACPI_ERR |
9072 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
9073 | thinkpad_acpi_module_exit(); |
9074 | return ret; | |
9075 | } | |
9076 | tp_features.sensors_pdrv_registered = 1; | |
9077 | ||
176750d6 | 9078 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9079 | if (!ret) { |
9080 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9081 | ret = tpacpi_create_driver_attributes( |
9082 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9083 | } |
176750d6 | 9084 | if (ret) { |
35ff8b9f HMH |
9085 | printk(TPACPI_ERR |
9086 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
9087 | thinkpad_acpi_module_exit(); |
9088 | return ret; | |
9089 | } | |
2369cc94 | 9090 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9091 | |
54ae1501 HMH |
9092 | |
9093 | /* Device initialization */ | |
e0c7dfe7 | 9094 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9095 | NULL, 0); |
9096 | if (IS_ERR(tpacpi_pdev)) { | |
9097 | ret = PTR_ERR(tpacpi_pdev); | |
9098 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 9099 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
9100 | thinkpad_acpi_module_exit(); |
9101 | return ret; | |
9102 | } | |
7fd40029 | 9103 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9104 | TPACPI_HWMON_DRVR_NAME, |
9105 | -1, NULL, 0); | |
7fd40029 HMH |
9106 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9107 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9108 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
9109 | printk(TPACPI_ERR |
9110 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
9111 | thinkpad_acpi_module_exit(); |
9112 | return ret; | |
9113 | } | |
9114 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
9115 | &dev_attr_thinkpad_acpi_pdev_name); | |
9116 | if (ret) { | |
e0c7dfe7 | 9117 | printk(TPACPI_ERR |
35ff8b9f | 9118 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9119 | thinkpad_acpi_module_exit(); |
9120 | return ret; | |
9121 | } | |
9122 | tp_features.sensors_pdev_attrs_registered = 1; | |
9123 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9124 | if (IS_ERR(tpacpi_hwmon)) { |
9125 | ret = PTR_ERR(tpacpi_hwmon); | |
9126 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 9127 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
9128 | thinkpad_acpi_module_exit(); |
9129 | return ret; | |
9130 | } | |
8523ed6f | 9131 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9132 | tpacpi_inputdev = input_allocate_device(); |
9133 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 9134 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
9135 | thinkpad_acpi_module_exit(); |
9136 | return -ENOMEM; | |
9137 | } else { | |
9138 | /* Prepare input device, but don't register */ | |
9139 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9140 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9141 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9142 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9143 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9144 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9145 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9146 | } |
77775838 HMH |
9147 | |
9148 | /* Init subdriver dependencies */ | |
9149 | tpacpi_detect_brightness_capabilities(); | |
9150 | ||
9151 | /* Init subdrivers */ | |
a5763f22 HMH |
9152 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9153 | ret = ibm_init(&ibms_init[i]); | |
9154 | if (ret >= 0 && *ibms_init[i].param) | |
9155 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9156 | if (ret < 0) { |
1def7115 | 9157 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9158 | return ret; |
9159 | } | |
9160 | } | |
b589ea4c HMH |
9161 | |
9162 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9163 | ||
7f5d1cd6 HMH |
9164 | ret = input_register_device(tpacpi_inputdev); |
9165 | if (ret < 0) { | |
e0c7dfe7 | 9166 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
9167 | thinkpad_acpi_module_exit(); |
9168 | return ret; | |
9169 | } else { | |
9170 | tp_features.input_device_registered = 1; | |
9171 | } | |
1da177e4 LT |
9172 | |
9173 | return 0; | |
9174 | } | |
9175 | ||
95e57ab2 HMH |
9176 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9177 | ||
922fe097 HMH |
9178 | /* |
9179 | * This will autoload the driver in almost every ThinkPad | |
9180 | * in widespread use. | |
9181 | * | |
9182 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9183 | * the HKEY event interface. | |
9184 | */ | |
9185 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9186 | ||
f68080f8 HMH |
9187 | /* |
9188 | * DMI matching for module autoloading | |
9189 | * | |
9190 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9191 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9192 | * | |
9193 | * Only models listed in thinkwiki will be supported, so add yours | |
9194 | * if it is not there yet. | |
9195 | */ | |
9196 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9197 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9198 | |
f68080f8 HMH |
9199 | /* Ancient thinkpad BIOSes have to be identified by |
9200 | * BIOS type or model number, and there are far less | |
9201 | * BIOS types than model numbers... */ | |
922fe097 | 9202 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9203 | |
f68f53a2 HMH |
9204 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9205 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9206 | MODULE_DESCRIPTION(TPACPI_DESC); |
9207 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9208 | MODULE_LICENSE("GPL"); |
9209 | ||
1def7115 HMH |
9210 | module_init(thinkpad_acpi_module_init); |
9211 | module_exit(thinkpad_acpi_module_exit); |