]>
Commit | Line | Data |
---|---|---|
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 | ||
b57f7e7b | 24 | #define TPACPI_VERSION "0.23" |
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> | |
61 | ||
62 | #include <linux/nvram.h> | |
63 | #include <linux/proc_fs.h> | |
64 | #include <linux/sysfs.h> | |
65 | #include <linux/backlight.h> | |
66 | #include <linux/fb.h> | |
67 | #include <linux/platform_device.h> | |
68 | #include <linux/hwmon.h> | |
69 | #include <linux/hwmon-sysfs.h> | |
70 | #include <linux/input.h> | |
4fa6811b | 71 | #include <linux/leds.h> |
0e74dc26 | 72 | #include <linux/rfkill.h> |
0c78039f HMH |
73 | #include <asm/uaccess.h> |
74 | ||
75 | #include <linux/dmi.h> | |
76 | #include <linux/jiffies.h> | |
77 | #include <linux/workqueue.h> | |
78 | ||
79 | #include <acpi/acpi_drivers.h> | |
0c78039f HMH |
80 | |
81 | #include <linux/pci_ids.h> | |
82 | ||
0c78039f HMH |
83 | |
84 | /* ThinkPad CMOS commands */ | |
85 | #define TP_CMOS_VOLUME_DOWN 0 | |
86 | #define TP_CMOS_VOLUME_UP 1 | |
87 | #define TP_CMOS_VOLUME_MUTE 2 | |
88 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
89 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
90 | #define TP_CMOS_THINKLIGHT_ON 12 |
91 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
92 | |
93 | /* NVRAM Addresses */ | |
94 | enum tp_nvram_addr { | |
95 | TP_NVRAM_ADDR_HK2 = 0x57, | |
96 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
97 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
98 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
99 | TP_NVRAM_ADDR_MIXER = 0x60, | |
100 | }; | |
101 | ||
102 | /* NVRAM bit masks */ | |
103 | enum { | |
104 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
105 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
106 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
107 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
108 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
109 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
110 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
111 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
112 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
113 | TP_NVRAM_MASK_MUTE = 0x40, | |
114 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
115 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
116 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
117 | }; | |
118 | ||
b21a15f6 | 119 | /* ACPI HIDs */ |
e0c7dfe7 | 120 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
121 | |
122 | /* Input IDs */ | |
123 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
124 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
125 | ||
153f8220 HMH |
126 | /* ACPI \WGSV commands */ |
127 | enum { | |
128 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
129 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
130 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
131 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
132 | }; | |
133 | ||
134 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
135 | enum { | |
136 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
137 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
138 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
139 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
140 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
141 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
142 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
143 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
144 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
145 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
146 | }; | |
b21a15f6 | 147 | |
67bcae6e HMH |
148 | /* HKEY events */ |
149 | enum tpacpi_hkey_event_t { | |
150 | /* Hotkey-related */ | |
151 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
152 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
153 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
154 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
155 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
156 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
157 | ||
158 | /* Reasons for waking up from S3/S4 */ | |
159 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
160 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
161 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
162 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
163 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
164 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
165 | ||
166 | /* Auto-sleep after eject request */ | |
167 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
168 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
169 | ||
170 | /* Misc bay events */ | |
171 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
172 | ||
173 | /* User-interface events */ | |
174 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
175 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
176 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
177 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
178 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ | |
179 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
180 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
181 | ||
182 | /* Thermal events */ | |
183 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
184 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
185 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
186 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
187 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
188 | ||
189 | /* Misc */ | |
190 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
191 | }; | |
192 | ||
b21a15f6 HMH |
193 | /**************************************************************************** |
194 | * Main driver | |
195 | */ | |
196 | ||
e0c7dfe7 HMH |
197 | #define TPACPI_NAME "thinkpad" |
198 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
199 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
200 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
201 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 202 | |
e0c7dfe7 HMH |
203 | #define TPACPI_PROC_DIR "ibm" |
204 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
205 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 206 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 207 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 208 | |
95e57ab2 | 209 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 210 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 211 | |
e0c7dfe7 | 212 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 213 | |
7ff8d62f | 214 | /* printk headers */ |
e0c7dfe7 | 215 | #define TPACPI_LOG TPACPI_FILE ": " |
7ff8d62f HMH |
216 | #define TPACPI_EMERG KERN_EMERG TPACPI_LOG |
217 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG | |
218 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG | |
219 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
220 | #define TPACPI_WARN KERN_WARNING TPACPI_LOG | |
221 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
222 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
223 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
224 | ||
225 | /* Debugging printk groups */ | |
0c78039f | 226 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 227 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
228 | #define TPACPI_DBG_INIT 0x0001 |
229 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 230 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 231 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 232 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 233 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 234 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 235 | |
35ff8b9f HMH |
236 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
237 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
238 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 239 | |
0c78039f HMH |
240 | |
241 | /**************************************************************************** | |
b21a15f6 | 242 | * Driver-wide structs and misc. variables |
0c78039f HMH |
243 | */ |
244 | ||
245 | struct ibm_struct; | |
246 | ||
247 | struct tp_acpi_drv_struct { | |
248 | const struct acpi_device_id *hid; | |
249 | struct acpi_driver *driver; | |
250 | ||
251 | void (*notify) (struct ibm_struct *, u32); | |
252 | acpi_handle *handle; | |
253 | u32 type; | |
254 | struct acpi_device *device; | |
255 | }; | |
256 | ||
257 | struct ibm_struct { | |
258 | char *name; | |
259 | ||
260 | int (*read) (char *); | |
261 | int (*write) (char *); | |
262 | void (*exit) (void); | |
263 | void (*resume) (void); | |
083f1760 | 264 | void (*suspend) (pm_message_t state); |
90d9d3c7 | 265 | void (*shutdown) (void); |
0c78039f HMH |
266 | |
267 | struct list_head all_drivers; | |
268 | ||
269 | struct tp_acpi_drv_struct *acpi; | |
270 | ||
271 | struct { | |
272 | u8 acpi_driver_registered:1; | |
273 | u8 acpi_notify_installed:1; | |
274 | u8 proc_created:1; | |
275 | u8 init_called:1; | |
276 | u8 experimental:1; | |
277 | } flags; | |
278 | }; | |
279 | ||
280 | struct ibm_init_struct { | |
281 | char param[32]; | |
282 | ||
283 | int (*init) (struct ibm_init_struct *); | |
284 | struct ibm_struct *data; | |
285 | }; | |
286 | ||
287 | static struct { | |
0c78039f HMH |
288 | u32 bluetooth:1; |
289 | u32 hotkey:1; | |
290 | u32 hotkey_mask:1; | |
291 | u32 hotkey_wlsw:1; | |
6c231bd5 | 292 | u32 hotkey_tablet:1; |
0c78039f HMH |
293 | u32 light:1; |
294 | u32 light_status:1; | |
295 | u32 bright_16levels:1; | |
b5972796 | 296 | u32 bright_acpimode:1; |
0c78039f | 297 | u32 wan:1; |
0045c0aa | 298 | u32 uwb:1; |
0c78039f | 299 | u32 fan_ctrl_status_undef:1; |
d7377247 | 300 | u32 second_fan:1; |
60201732 | 301 | u32 beep_needs_two_args:1; |
a112ceee | 302 | u32 mixer_no_level_control:1; |
0c78039f HMH |
303 | u32 input_device_registered:1; |
304 | u32 platform_drv_registered:1; | |
305 | u32 platform_drv_attrs_registered:1; | |
306 | u32 sensors_pdrv_registered:1; | |
307 | u32 sensors_pdrv_attrs_registered:1; | |
308 | u32 sensors_pdev_attrs_registered:1; | |
309 | u32 hotkey_poll_active:1; | |
310 | } tp_features; | |
311 | ||
92889022 HMH |
312 | static struct { |
313 | u16 hotkey_mask_ff:1; | |
314 | } tp_warned; | |
315 | ||
0c78039f HMH |
316 | struct thinkpad_id_data { |
317 | unsigned int vendor; /* ThinkPad vendor: | |
318 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
319 | ||
320 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
321 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
322 | ||
050df107 | 323 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 324 | u16 ec_model; |
050df107 HMH |
325 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
326 | u16 ec_release; | |
0c78039f | 327 | |
8c74adbc HMH |
328 | char *model_str; /* ThinkPad T43 */ |
329 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 330 | }; |
0c78039f HMH |
331 | static struct thinkpad_id_data thinkpad_id; |
332 | ||
8fef502e HMH |
333 | static enum { |
334 | TPACPI_LIFE_INIT = 0, | |
335 | TPACPI_LIFE_RUNNING, | |
336 | TPACPI_LIFE_EXITING, | |
337 | } tpacpi_lifecycle; | |
338 | ||
b21a15f6 HMH |
339 | static int experimental; |
340 | static u32 dbg_level; | |
341 | ||
e0e3c061 HMH |
342 | static struct workqueue_struct *tpacpi_wq; |
343 | ||
75bd3bf2 HMH |
344 | enum led_status_t { |
345 | TPACPI_LED_OFF = 0, | |
346 | TPACPI_LED_ON, | |
347 | TPACPI_LED_BLINK, | |
348 | }; | |
349 | ||
4fa6811b HMH |
350 | /* Special LED class that can defer work */ |
351 | struct tpacpi_led_classdev { | |
352 | struct led_classdev led_classdev; | |
353 | struct work_struct work; | |
75bd3bf2 | 354 | enum led_status_t new_state; |
af116101 | 355 | unsigned int led; |
4fa6811b HMH |
356 | }; |
357 | ||
a73f3091 HMH |
358 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
359 | static int dbg_wlswemul; | |
360 | static int tpacpi_wlsw_emulstate; | |
361 | static int dbg_bluetoothemul; | |
362 | static int tpacpi_bluetooth_emulstate; | |
363 | static int dbg_wwanemul; | |
364 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
365 | static int dbg_uwbemul; |
366 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
367 | #endif |
368 | ||
369 | ||
3dcc2c3b HMH |
370 | /************************************************************************* |
371 | * Debugging helpers | |
372 | */ | |
373 | ||
374 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
375 | do { if (dbg_level & (a_dbg_level)) \ | |
376 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ | |
377 | } while (0) | |
378 | ||
379 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
380 | #define vdbg_printk dbg_printk | |
381 | static const char *str_supported(int is_supported); | |
382 | #else | |
383 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
384 | do { } while (0) | |
385 | #endif | |
386 | ||
73a94d86 HMH |
387 | static void tpacpi_log_usertask(const char * const what) |
388 | { | |
389 | printk(TPACPI_DEBUG "%s: access by process with PID %d\n", | |
390 | what, task_tgid_vnr(current)); | |
391 | } | |
392 | ||
393 | #define tpacpi_disclose_usertask(what, format, arg...) \ | |
394 | do { \ | |
395 | if (unlikely( \ | |
396 | (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
397 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
398 | printk(TPACPI_DEBUG "%s: PID %d: " format, \ | |
399 | what, task_tgid_vnr(current), ## arg); \ | |
400 | } \ | |
401 | } while (0) | |
3dcc2c3b | 402 | |
7d95a3d5 HMH |
403 | /* |
404 | * Quirk handling helpers | |
405 | * | |
406 | * ThinkPad IDs and versions seen in the field so far | |
407 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
408 | * | |
409 | * We use values well outside that range as specials. | |
410 | */ | |
411 | ||
412 | #define TPACPI_MATCH_ANY 0xffffU | |
413 | #define TPACPI_MATCH_UNKNOWN 0U | |
414 | ||
415 | /* TPID('1', 'Y') == 0x5931 */ | |
416 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
417 | ||
418 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
419 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
420 | .bios = TPID(__id1, __id2), \ | |
421 | .ec = TPACPI_MATCH_ANY, \ | |
422 | .quirks = (__quirk) } | |
423 | ||
424 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
425 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
426 | .bios = TPID(__id1, __id2), \ | |
427 | .ec = TPACPI_MATCH_ANY, \ | |
428 | .quirks = (__quirk) } | |
429 | ||
a112ceee HMH |
430 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
431 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
432 | .bios = TPACPI_MATCH_ANY, \ | |
433 | .ec = TPID(__id1, __id2), \ | |
434 | .quirks = (__quirk) } | |
435 | ||
7d95a3d5 HMH |
436 | struct tpacpi_quirk { |
437 | unsigned int vendor; | |
438 | u16 bios; | |
439 | u16 ec; | |
440 | unsigned long quirks; | |
441 | }; | |
442 | ||
443 | /** | |
444 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
445 | * @qlist: array of &struct tpacpi_quirk | |
446 | * @qlist_size: number of elements in @qlist | |
447 | * | |
448 | * Iterates over a quirks list until one is found that matches the | |
449 | * ThinkPad's vendor, BIOS and EC model. | |
450 | * | |
451 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
452 | * the matching &struct tpacpi_quirk entry. | |
453 | * | |
454 | * The match criteria is: vendor, ec and bios much match. | |
455 | */ | |
456 | static unsigned long __init tpacpi_check_quirks( | |
457 | const struct tpacpi_quirk *qlist, | |
458 | unsigned int qlist_size) | |
459 | { | |
460 | while (qlist_size) { | |
461 | if ((qlist->vendor == thinkpad_id.vendor || | |
462 | qlist->vendor == TPACPI_MATCH_ANY) && | |
463 | (qlist->bios == thinkpad_id.bios_model || | |
464 | qlist->bios == TPACPI_MATCH_ANY) && | |
465 | (qlist->ec == thinkpad_id.ec_model || | |
466 | qlist->ec == TPACPI_MATCH_ANY)) | |
467 | return qlist->quirks; | |
468 | ||
469 | qlist_size--; | |
470 | qlist++; | |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | ||
56b6aeb0 HMH |
476 | /**************************************************************************** |
477 | **************************************************************************** | |
478 | * | |
479 | * ACPI Helpers and device model | |
480 | * | |
481 | **************************************************************************** | |
482 | ****************************************************************************/ | |
483 | ||
484 | /************************************************************************* | |
485 | * ACPI basic handles | |
486 | */ | |
1da177e4 | 487 | |
94954cc6 | 488 | static acpi_handle root_handle; |
1da177e4 | 489 | |
e0c7dfe7 | 490 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
491 | static acpi_handle object##_handle; \ |
492 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 493 | static char *object##_path; \ |
1da177e4 LT |
494 | static char *object##_paths[] = { paths } |
495 | ||
e0c7dfe7 | 496 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
497 | "\\_SB.PCI.ISA.EC", /* 570 */ |
498 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
499 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
500 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
501 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
502 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 503 | ); |
78f81cc4 | 504 | |
e0c7dfe7 HMH |
505 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
506 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 507 | |
35ff8b9f HMH |
508 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
509 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
510 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
511 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 512 | ); /* all others */ |
78f81cc4 | 513 | |
e0c7dfe7 | 514 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
515 | "^HKEY", /* R30, R31 */ |
516 | "HKEY", /* all others */ | |
56b6aeb0 | 517 | ); /* 570 */ |
78f81cc4 | 518 | |
d7c1d17d HMH |
519 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
520 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
521 | "\\_SB.PCI0.VID0", /* 770e */ | |
522 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
523 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
524 | ); /* R30, R31 */ | |
525 | ||
78f81cc4 | 526 | |
56b6aeb0 HMH |
527 | /************************************************************************* |
528 | * ACPI helpers | |
a8b7a662 HMH |
529 | */ |
530 | ||
1da177e4 LT |
531 | static int acpi_evalf(acpi_handle handle, |
532 | void *res, char *method, char *fmt, ...) | |
533 | { | |
534 | char *fmt0 = fmt; | |
78f81cc4 | 535 | struct acpi_object_list params; |
e0c7dfe7 | 536 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
537 | struct acpi_buffer result, *resultp; |
538 | union acpi_object out_obj; | |
539 | acpi_status status; | |
540 | va_list ap; | |
541 | char res_type; | |
542 | int success; | |
543 | int quiet; | |
1da177e4 LT |
544 | |
545 | if (!*fmt) { | |
e0c7dfe7 | 546 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
547 | return 0; |
548 | } | |
549 | ||
550 | if (*fmt == 'q') { | |
551 | quiet = 1; | |
552 | fmt++; | |
553 | } else | |
554 | quiet = 0; | |
555 | ||
556 | res_type = *(fmt++); | |
557 | ||
558 | params.count = 0; | |
559 | params.pointer = &in_objs[0]; | |
560 | ||
561 | va_start(ap, fmt); | |
562 | while (*fmt) { | |
563 | char c = *(fmt++); | |
564 | switch (c) { | |
565 | case 'd': /* int */ | |
566 | in_objs[params.count].integer.value = va_arg(ap, int); | |
567 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
568 | break; | |
78f81cc4 | 569 | /* add more types as needed */ |
1da177e4 | 570 | default: |
e0c7dfe7 | 571 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
572 | "with invalid format character '%c'\n", c); |
573 | return 0; | |
574 | } | |
575 | } | |
576 | va_end(ap); | |
577 | ||
78f81cc4 BD |
578 | if (res_type != 'v') { |
579 | result.length = sizeof(out_obj); | |
580 | result.pointer = &out_obj; | |
581 | resultp = &result; | |
582 | } else | |
583 | resultp = NULL; | |
1da177e4 | 584 | |
78f81cc4 | 585 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
586 | |
587 | switch (res_type) { | |
78f81cc4 | 588 | case 'd': /* int */ |
1da177e4 LT |
589 | if (res) |
590 | *(int *)res = out_obj.integer.value; | |
591 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
592 | break; | |
78f81cc4 | 593 | case 'v': /* void */ |
1da177e4 LT |
594 | success = status == AE_OK; |
595 | break; | |
78f81cc4 | 596 | /* add more types as needed */ |
1da177e4 | 597 | default: |
e0c7dfe7 | 598 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
599 | "with invalid format character '%c'\n", res_type); |
600 | return 0; | |
601 | } | |
602 | ||
56b6aeb0 | 603 | if (!success && !quiet) |
e0c7dfe7 | 604 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
605 | method, fmt0, status); |
606 | ||
607 | return success; | |
608 | } | |
609 | ||
35ff8b9f | 610 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
611 | { |
612 | int v; | |
613 | ||
614 | if (ecrd_handle) { | |
615 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
616 | return 0; | |
617 | *p = v; | |
618 | } else { | |
619 | if (ec_read(i, p) < 0) | |
620 | return 0; | |
621 | } | |
622 | ||
623 | return 1; | |
624 | } | |
625 | ||
626 | static int acpi_ec_write(int i, u8 v) | |
627 | { | |
628 | if (ecwr_handle) { | |
629 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
630 | return 0; | |
631 | } else { | |
632 | if (ec_write(i, v) < 0) | |
633 | return 0; | |
634 | } | |
635 | ||
636 | return 1; | |
637 | } | |
638 | ||
c9bea99c HMH |
639 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
640 | { | |
641 | if (!cmos_handle) | |
642 | return -ENXIO; | |
643 | ||
644 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
645 | return -EIO; | |
646 | ||
647 | return 0; | |
648 | } | |
649 | ||
56b6aeb0 HMH |
650 | /************************************************************************* |
651 | * ACPI device model | |
652 | */ | |
653 | ||
35ff8b9f HMH |
654 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
655 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
656 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
657 | ||
8d376cd6 | 658 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
659 | acpi_handle *handle, acpi_handle parent, |
660 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
661 | { |
662 | int i; | |
663 | acpi_status status; | |
664 | ||
5ae930e6 HMH |
665 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
666 | name); | |
667 | ||
56b6aeb0 HMH |
668 | for (i = 0; i < num_paths; i++) { |
669 | status = acpi_get_handle(parent, paths[i], handle); | |
670 | if (ACPI_SUCCESS(status)) { | |
671 | *path = paths[i]; | |
5ae930e6 HMH |
672 | dbg_printk(TPACPI_DBG_INIT, |
673 | "Found ACPI handle %s for %s\n", | |
674 | *path, name); | |
56b6aeb0 HMH |
675 | return; |
676 | } | |
677 | } | |
678 | ||
5ae930e6 HMH |
679 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
680 | name); | |
56b6aeb0 HMH |
681 | *handle = NULL; |
682 | } | |
683 | ||
8d376cd6 | 684 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
685 | { |
686 | struct ibm_struct *ibm = data; | |
687 | ||
8fef502e HMH |
688 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
689 | return; | |
690 | ||
8d376cd6 | 691 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
692 | return; |
693 | ||
8d376cd6 | 694 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
695 | } |
696 | ||
8d376cd6 | 697 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
698 | { |
699 | acpi_status status; | |
5ae930e6 | 700 | int rc; |
56b6aeb0 | 701 | |
8d376cd6 HMH |
702 | BUG_ON(!ibm->acpi); |
703 | ||
704 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
705 | return 0; |
706 | ||
5ae930e6 | 707 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
708 | "setting up ACPI notify for %s\n", ibm->name); |
709 | ||
5ae930e6 HMH |
710 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
711 | if (rc < 0) { | |
e0c7dfe7 | 712 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 713 | ibm->name, rc); |
56b6aeb0 HMH |
714 | return -ENODEV; |
715 | } | |
716 | ||
db89b4f0 | 717 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 718 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 719 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 720 | ibm->name); |
56b6aeb0 | 721 | |
8d376cd6 HMH |
722 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
723 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
724 | if (ACPI_FAILURE(status)) { |
725 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
726 | printk(TPACPI_NOTICE |
727 | "another device driver is already " | |
728 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 729 | } else { |
35ff8b9f HMH |
730 | printk(TPACPI_ERR |
731 | "acpi_install_notify_handler(%s) failed: %d\n", | |
732 | ibm->name, status); | |
56b6aeb0 HMH |
733 | } |
734 | return -ENODEV; | |
735 | } | |
8d376cd6 | 736 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
737 | return 0; |
738 | } | |
739 | ||
8d376cd6 | 740 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
741 | { |
742 | return 0; | |
743 | } | |
744 | ||
6700121b | 745 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 746 | { |
5ae930e6 | 747 | int rc; |
56b6aeb0 | 748 | |
fe08bc4b HMH |
749 | dbg_printk(TPACPI_DBG_INIT, |
750 | "registering %s as an ACPI driver\n", ibm->name); | |
751 | ||
8d376cd6 HMH |
752 | BUG_ON(!ibm->acpi); |
753 | ||
754 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
755 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
756 | printk(TPACPI_ERR |
757 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 758 | return -ENOMEM; |
56b6aeb0 HMH |
759 | } |
760 | ||
e0c7dfe7 | 761 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 762 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 763 | |
8d376cd6 | 764 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 765 | |
5ae930e6 HMH |
766 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
767 | if (rc < 0) { | |
e0c7dfe7 | 768 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 769 | ibm->name, rc); |
8d376cd6 HMH |
770 | kfree(ibm->acpi->driver); |
771 | ibm->acpi->driver = NULL; | |
5ae930e6 | 772 | } else if (!rc) |
8d376cd6 | 773 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 774 | |
5ae930e6 | 775 | return rc; |
56b6aeb0 HMH |
776 | } |
777 | ||
778 | ||
779 | /**************************************************************************** | |
780 | **************************************************************************** | |
781 | * | |
782 | * Procfs Helpers | |
783 | * | |
784 | **************************************************************************** | |
785 | ****************************************************************************/ | |
786 | ||
8d376cd6 HMH |
787 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
788 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
789 | { |
790 | struct ibm_struct *ibm = data; | |
791 | int len; | |
792 | ||
793 | if (!ibm || !ibm->read) | |
794 | return -EINVAL; | |
795 | ||
796 | len = ibm->read(page); | |
797 | if (len < 0) | |
798 | return len; | |
799 | ||
800 | if (len <= off + count) | |
801 | *eof = 1; | |
802 | *start = page + off; | |
803 | len -= off; | |
804 | if (len > count) | |
805 | len = count; | |
806 | if (len < 0) | |
807 | len = 0; | |
808 | ||
809 | return len; | |
810 | } | |
811 | ||
8d376cd6 | 812 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 813 | const char __user *userbuf, |
8d376cd6 | 814 | unsigned long count, void *data) |
56b6aeb0 HMH |
815 | { |
816 | struct ibm_struct *ibm = data; | |
817 | char *kernbuf; | |
818 | int ret; | |
819 | ||
820 | if (!ibm || !ibm->write) | |
821 | return -EINVAL; | |
5b05d469 MB |
822 | if (count > PAGE_SIZE - 2) |
823 | return -EINVAL; | |
56b6aeb0 HMH |
824 | |
825 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
826 | if (!kernbuf) | |
827 | return -ENOMEM; | |
1da177e4 | 828 | |
56b6aeb0 HMH |
829 | if (copy_from_user(kernbuf, userbuf, count)) { |
830 | kfree(kernbuf); | |
831 | return -EFAULT; | |
832 | } | |
1da177e4 | 833 | |
56b6aeb0 HMH |
834 | kernbuf[count] = 0; |
835 | strcat(kernbuf, ","); | |
836 | ret = ibm->write(kernbuf); | |
837 | if (ret == 0) | |
838 | ret = count; | |
1da177e4 | 839 | |
56b6aeb0 HMH |
840 | kfree(kernbuf); |
841 | ||
842 | return ret; | |
1da177e4 LT |
843 | } |
844 | ||
845 | static char *next_cmd(char **cmds) | |
846 | { | |
847 | char *start = *cmds; | |
848 | char *end; | |
849 | ||
850 | while ((end = strchr(start, ',')) && end == start) | |
851 | start = end + 1; | |
852 | ||
853 | if (!end) | |
854 | return NULL; | |
855 | ||
856 | *end = 0; | |
857 | *cmds = end + 1; | |
858 | return start; | |
859 | } | |
860 | ||
56b6aeb0 | 861 | |
54ae1501 HMH |
862 | /**************************************************************************** |
863 | **************************************************************************** | |
864 | * | |
7f5d1cd6 | 865 | * Device model: input, hwmon and platform |
54ae1501 HMH |
866 | * |
867 | **************************************************************************** | |
868 | ****************************************************************************/ | |
869 | ||
94954cc6 | 870 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 871 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 872 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 873 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 874 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 875 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 876 | |
083f1760 HMH |
877 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
878 | pm_message_t state) | |
879 | { | |
880 | struct ibm_struct *ibm, *itmp; | |
881 | ||
882 | list_for_each_entry_safe(ibm, itmp, | |
883 | &tpacpi_all_drivers, | |
884 | all_drivers) { | |
885 | if (ibm->suspend) | |
886 | (ibm->suspend)(state); | |
887 | } | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
e295e850 HMH |
892 | static int tpacpi_resume_handler(struct platform_device *pdev) |
893 | { | |
894 | struct ibm_struct *ibm, *itmp; | |
895 | ||
896 | list_for_each_entry_safe(ibm, itmp, | |
897 | &tpacpi_all_drivers, | |
898 | all_drivers) { | |
899 | if (ibm->resume) | |
900 | (ibm->resume)(); | |
901 | } | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
90d9d3c7 HMH |
906 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
907 | { | |
908 | struct ibm_struct *ibm, *itmp; | |
909 | ||
910 | list_for_each_entry_safe(ibm, itmp, | |
911 | &tpacpi_all_drivers, | |
912 | all_drivers) { | |
913 | if (ibm->shutdown) | |
914 | (ibm->shutdown)(); | |
915 | } | |
916 | } | |
917 | ||
54ae1501 HMH |
918 | static struct platform_driver tpacpi_pdriver = { |
919 | .driver = { | |
e0c7dfe7 | 920 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
921 | .owner = THIS_MODULE, |
922 | }, | |
083f1760 | 923 | .suspend = tpacpi_suspend_handler, |
e295e850 | 924 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 925 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
926 | }; |
927 | ||
7fd40029 HMH |
928 | static struct platform_driver tpacpi_hwmon_pdriver = { |
929 | .driver = { | |
e0c7dfe7 | 930 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
931 | .owner = THIS_MODULE, |
932 | }, | |
933 | }; | |
54ae1501 | 934 | |
176750d6 | 935 | /************************************************************************* |
b21a15f6 | 936 | * sysfs support helpers |
176750d6 HMH |
937 | */ |
938 | ||
b21a15f6 HMH |
939 | struct attribute_set { |
940 | unsigned int members, max_members; | |
941 | struct attribute_group group; | |
176750d6 HMH |
942 | }; |
943 | ||
7252374a HMH |
944 | struct attribute_set_obj { |
945 | struct attribute_set s; | |
946 | struct attribute *a; | |
947 | } __attribute__((packed)); | |
948 | ||
949 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 950 | const char *name) |
7252374a HMH |
951 | { |
952 | struct attribute_set_obj *sobj; | |
953 | ||
954 | if (max_members == 0) | |
955 | return NULL; | |
956 | ||
957 | /* Allocates space for implicit NULL at the end too */ | |
958 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
959 | max_members * sizeof(struct attribute *), | |
960 | GFP_KERNEL); | |
961 | if (!sobj) | |
962 | return NULL; | |
963 | sobj->s.max_members = max_members; | |
964 | sobj->s.group.attrs = &sobj->a; | |
965 | sobj->s.group.name = name; | |
966 | ||
967 | return &sobj->s; | |
968 | } | |
969 | ||
f74a27d4 HMH |
970 | #define destroy_attr_set(_set) \ |
971 | kfree(_set); | |
972 | ||
7252374a | 973 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 974 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
975 | { |
976 | if (!s || !attr) | |
977 | return -EINVAL; | |
978 | ||
979 | if (s->members >= s->max_members) | |
980 | return -ENOMEM; | |
981 | ||
982 | s->group.attrs[s->members] = attr; | |
983 | s->members++; | |
984 | ||
985 | return 0; | |
986 | } | |
987 | ||
35ff8b9f | 988 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
989 | struct attribute **attr, |
990 | unsigned int count) | |
991 | { | |
992 | int i, res; | |
993 | ||
994 | for (i = 0; i < count; i++) { | |
995 | res = add_to_attr_set(s, attr[i]); | |
996 | if (res) | |
997 | return res; | |
998 | } | |
999 | ||
1000 | return 0; | |
1001 | } | |
1002 | ||
35ff8b9f | 1003 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1004 | { |
1005 | sysfs_remove_group(kobj, &s->group); | |
1006 | destroy_attr_set(s); | |
1007 | } | |
1008 | ||
f74a27d4 HMH |
1009 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1010 | sysfs_create_group(_kobj, &_attr_set->group) | |
1011 | ||
7252374a HMH |
1012 | static int parse_strtoul(const char *buf, |
1013 | unsigned long max, unsigned long *value) | |
1014 | { | |
1015 | char *endp; | |
1016 | ||
32afbf07 HMH |
1017 | while (*buf && isspace(*buf)) |
1018 | buf++; | |
7252374a HMH |
1019 | *value = simple_strtoul(buf, &endp, 0); |
1020 | while (*endp && isspace(*endp)) | |
1021 | endp++; | |
1022 | if (*endp || *value > max) | |
1023 | return -EINVAL; | |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
d64c81c4 HMH |
1028 | static void tpacpi_disable_brightness_delay(void) |
1029 | { | |
1030 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
1031 | printk(TPACPI_NOTICE | |
1032 | "ACPI backlight control delay disabled\n"); | |
1033 | } | |
1034 | ||
b5972796 HMH |
1035 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
1036 | { | |
1037 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1038 | union acpi_object *obj; | |
1039 | int rc; | |
1040 | ||
1041 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
1042 | obj = (union acpi_object *)buffer.pointer; | |
1043 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
1044 | printk(TPACPI_ERR "Unknown _BCL data, " | |
1045 | "please report this to %s\n", TPACPI_MAIL); | |
1046 | rc = 0; | |
1047 | } else { | |
1048 | rc = obj->package.count; | |
1049 | } | |
1050 | } else { | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | kfree(buffer.pointer); | |
1055 | return rc; | |
1056 | } | |
1057 | ||
1058 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
1059 | u32 lvl, void *context, void **rv) | |
1060 | { | |
1061 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
1062 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
1063 | ||
1064 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
1065 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
1066 | BUG_ON(!rv || !*rv); | |
1067 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
1068 | return AE_CTRL_TERMINATE; | |
1069 | } else { | |
1070 | return AE_OK; | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
1076 | */ | |
1077 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
1078 | { | |
1079 | int status; | |
1080 | int bcl_levels = 0; | |
1081 | void *bcl_ptr = &bcl_levels; | |
1082 | ||
1083 | if (!vid_handle) { | |
1084 | TPACPI_ACPIHANDLE_INIT(vid); | |
1085 | } | |
1086 | if (!vid_handle) | |
1087 | return 0; | |
1088 | ||
1089 | /* | |
1090 | * Search for a _BCL method, and execute it. This is safe on all | |
1091 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
1092 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
1093 | * about calling the _BCL method in an enabled video device, any | |
1094 | * will do for our purposes. | |
1095 | */ | |
1096 | ||
1097 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
1098 | tpacpi_acpi_walk_find_bcl, NULL, | |
1099 | &bcl_ptr); | |
1100 | ||
1101 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
1102 | tp_features.bright_acpimode = 1; | |
1103 | return (bcl_levels - 2); | |
1104 | } | |
1105 | ||
1106 | return 0; | |
1107 | } | |
1108 | ||
19d337df JB |
1109 | static void printk_deprecated_attribute(const char * const what, |
1110 | const char * const details) | |
1111 | { | |
1112 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
1113 | printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " | |
1114 | "will be removed. %s\n", | |
1115 | what, details); | |
1116 | } | |
1117 | ||
1118 | /************************************************************************* | |
1119 | * rfkill and radio control support helpers | |
1120 | */ | |
1121 | ||
1122 | /* | |
1123 | * ThinkPad-ACPI firmware handling model: | |
1124 | * | |
1125 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1126 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1127 | * as expected. It overrides all radio state in firmware | |
1128 | * | |
1129 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1130 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1131 | * | |
1132 | * The only time there are shadow radio state changes, is when | |
1133 | * masked-off hotkeys are used. | |
1134 | */ | |
1135 | ||
1136 | /* | |
1137 | * Internal driver API for radio state: | |
1138 | * | |
1139 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1140 | * bool: true means radio blocked (off) | |
1141 | */ | |
1142 | enum tpacpi_rfkill_state { | |
1143 | TPACPI_RFK_RADIO_OFF = 0, | |
1144 | TPACPI_RFK_RADIO_ON | |
1145 | }; | |
1146 | ||
1147 | /* rfkill switches */ | |
1148 | enum tpacpi_rfk_id { | |
1149 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1150 | TPACPI_RFK_WWAN_SW_ID, | |
1151 | TPACPI_RFK_UWB_SW_ID, | |
1152 | TPACPI_RFK_SW_MAX | |
1153 | }; | |
1154 | ||
1155 | static const char *tpacpi_rfkill_names[] = { | |
1156 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1157 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1158 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1159 | [TPACPI_RFK_SW_MAX] = NULL | |
1160 | }; | |
1161 | ||
1162 | /* ThinkPad-ACPI rfkill subdriver */ | |
1163 | struct tpacpi_rfk { | |
1164 | struct rfkill *rfkill; | |
1165 | enum tpacpi_rfk_id id; | |
1166 | const struct tpacpi_rfk_ops *ops; | |
1167 | }; | |
1168 | ||
1169 | struct tpacpi_rfk_ops { | |
1170 | /* firmware interface */ | |
1171 | int (*get_status)(void); | |
1172 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1173 | }; | |
1174 | ||
1175 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1176 | ||
1177 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1178 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1179 | { | |
1180 | int status; | |
1181 | ||
1182 | if (!tp_rfk) | |
1183 | return -ENODEV; | |
1184 | ||
1185 | status = (tp_rfk->ops->get_status)(); | |
1186 | if (status < 0) | |
1187 | return status; | |
1188 | ||
1189 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1190 | (status == TPACPI_RFK_RADIO_OFF)); | |
1191 | ||
1192 | return status; | |
1193 | } | |
1194 | ||
1195 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1196 | static void tpacpi_rfk_update_swstate_all(void) | |
1197 | { | |
1198 | unsigned int i; | |
1199 | ||
1200 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1201 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | * Sync the HW-blocking state of all rfkill switches, | |
1206 | * do notice it causes the rfkill core to schedule uevents | |
1207 | */ | |
1208 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1209 | { | |
1210 | unsigned int i; | |
1211 | struct tpacpi_rfk *tp_rfk; | |
1212 | ||
1213 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1214 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1215 | if (tp_rfk) { | |
1216 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1217 | blocked)) { | |
1218 | /* ignore -- we track sw block */ | |
1219 | } | |
1220 | } | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | /* Call to get the WLSW state from the firmware */ | |
1225 | static int hotkey_get_wlsw(void); | |
1226 | ||
1227 | /* Call to query WLSW state and update all rfkill switches */ | |
1228 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1229 | { | |
1230 | int res = hotkey_get_wlsw(); | |
1231 | int hw_blocked; | |
1232 | ||
1233 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1234 | if (res < 0) | |
1235 | return false; | |
1236 | ||
1237 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1238 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1239 | ||
1240 | return hw_blocked; | |
1241 | } | |
1242 | ||
1243 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1244 | { | |
1245 | struct tpacpi_rfk *tp_rfk = data; | |
1246 | int res; | |
1247 | ||
1248 | dbg_printk(TPACPI_DBG_RFKILL, | |
1249 | "request to change radio state to %s\n", | |
1250 | blocked ? "blocked" : "unblocked"); | |
1251 | ||
1252 | /* try to set radio state */ | |
1253 | res = (tp_rfk->ops->set_status)(blocked ? | |
1254 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1255 | ||
1256 | /* and update the rfkill core with whatever the FW really did */ | |
1257 | tpacpi_rfk_update_swstate(tp_rfk); | |
1258 | ||
1259 | return (res < 0) ? res : 0; | |
1260 | } | |
1261 | ||
1262 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1263 | .set_block = tpacpi_rfk_hook_set_block, | |
1264 | }; | |
1265 | ||
1266 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1267 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1268 | const enum rfkill_type rfktype, |
1269 | const char *name, | |
19d337df | 1270 | const bool set_default) |
0e74dc26 | 1271 | { |
19d337df | 1272 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1273 | int res; |
06d5caf4 | 1274 | bool sw_state = false; |
5451a923 | 1275 | bool hw_state; |
06d5caf4 | 1276 | int sw_status; |
90d9d3c7 | 1277 | |
19d337df JB |
1278 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1279 | ||
19d337df JB |
1280 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1281 | if (atp_rfk) | |
1282 | atp_rfk->rfkill = rfkill_alloc(name, | |
1283 | &tpacpi_pdev->dev, | |
1284 | rfktype, | |
1285 | &tpacpi_rfk_rfkill_ops, | |
1286 | atp_rfk); | |
1287 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0e74dc26 HMH |
1288 | printk(TPACPI_ERR |
1289 | "failed to allocate memory for rfkill class\n"); | |
19d337df | 1290 | kfree(atp_rfk); |
0e74dc26 HMH |
1291 | return -ENOMEM; |
1292 | } | |
1293 | ||
19d337df JB |
1294 | atp_rfk->id = id; |
1295 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1296 | |
06d5caf4 AJ |
1297 | sw_status = (tp_rfkops->get_status)(); |
1298 | if (sw_status < 0) { | |
b3fa1329 AJ |
1299 | printk(TPACPI_ERR |
1300 | "failed to read initial state for %s, error %d\n", | |
06d5caf4 | 1301 | name, sw_status); |
b3fa1329 | 1302 | } else { |
06d5caf4 | 1303 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1304 | if (set_default) { |
1305 | /* try to keep the initial state, since we ask the | |
1306 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1307 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1308 | } |
1309 | } | |
5451a923 HMH |
1310 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1311 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1312 | |
1313 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 HMH |
1314 | if (res < 0) { |
1315 | printk(TPACPI_ERR | |
1316 | "failed to register %s rfkill switch: %d\n", | |
1317 | name, res); | |
19d337df JB |
1318 | rfkill_destroy(atp_rfk->rfkill); |
1319 | kfree(atp_rfk); | |
0e74dc26 HMH |
1320 | return res; |
1321 | } | |
1322 | ||
19d337df | 1323 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 HMH |
1324 | |
1325 | printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", | |
1326 | name, (sw_state || hw_state) ? "" : "un"); | |
0e74dc26 HMH |
1327 | return 0; |
1328 | } | |
1329 | ||
19d337df | 1330 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1331 | { |
19d337df JB |
1332 | struct tpacpi_rfk *tp_rfk; |
1333 | ||
1334 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1335 | ||
1336 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1337 | if (tp_rfk) { | |
1338 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1339 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1340 | tpacpi_rfkill_switches[id] = NULL; |
1341 | kfree(tp_rfk); | |
1342 | } | |
73a94d86 HMH |
1343 | } |
1344 | ||
1345 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1346 | { | |
1347 | printk_deprecated_attribute(what, | |
1348 | "Please switch to generic rfkill before year 2010"); | |
1349 | } | |
1350 | ||
19d337df JB |
1351 | /* sysfs <radio> enable ------------------------------------------------ */ |
1352 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1353 | struct device_attribute *attr, | |
1354 | char *buf) | |
1355 | { | |
1356 | int status; | |
1357 | ||
1358 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1359 | ||
1360 | /* This is in the ABI... */ | |
1361 | if (tpacpi_rfk_check_hwblock_state()) { | |
1362 | status = TPACPI_RFK_RADIO_OFF; | |
1363 | } else { | |
1364 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1365 | if (status < 0) | |
1366 | return status; | |
1367 | } | |
1368 | ||
1369 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1370 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1371 | } | |
1372 | ||
1373 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1374 | struct device_attribute *attr, | |
1375 | const char *buf, size_t count) | |
1376 | { | |
1377 | unsigned long t; | |
1378 | int res; | |
1379 | ||
1380 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1381 | ||
1382 | if (parse_strtoul(buf, 1, &t)) | |
1383 | return -EINVAL; | |
1384 | ||
1385 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1386 | ||
1387 | /* This is in the ABI... */ | |
1388 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1389 | return -EPERM; | |
1390 | ||
1391 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1392 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1393 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1394 | ||
1395 | return (res < 0) ? res : count; | |
1396 | } | |
1397 | ||
1398 | /* procfs -------------------------------------------------------------- */ | |
1399 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p) | |
1400 | { | |
1401 | int len = 0; | |
1402 | ||
1403 | if (id >= TPACPI_RFK_SW_MAX) | |
1404 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1405 | else { | |
1406 | int status; | |
1407 | ||
1408 | /* This is in the ABI... */ | |
1409 | if (tpacpi_rfk_check_hwblock_state()) { | |
1410 | status = TPACPI_RFK_RADIO_OFF; | |
1411 | } else { | |
1412 | status = tpacpi_rfk_update_swstate( | |
1413 | tpacpi_rfkill_switches[id]); | |
1414 | if (status < 0) | |
1415 | return status; | |
1416 | } | |
1417 | ||
1418 | len += sprintf(p + len, "status:\t\t%s\n", | |
1419 | (status == TPACPI_RFK_RADIO_ON) ? | |
1420 | "enabled" : "disabled"); | |
1421 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
1422 | } | |
1423 | ||
1424 | return len; | |
1425 | } | |
1426 | ||
1427 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1428 | { | |
1429 | char *cmd; | |
1430 | int status = -1; | |
1431 | int res = 0; | |
1432 | ||
1433 | if (id >= TPACPI_RFK_SW_MAX) | |
1434 | return -ENODEV; | |
1435 | ||
1436 | while ((cmd = next_cmd(&buf))) { | |
1437 | if (strlencmp(cmd, "enable") == 0) | |
1438 | status = TPACPI_RFK_RADIO_ON; | |
1439 | else if (strlencmp(cmd, "disable") == 0) | |
1440 | status = TPACPI_RFK_RADIO_OFF; | |
1441 | else | |
1442 | return -EINVAL; | |
1443 | } | |
1444 | ||
1445 | if (status != -1) { | |
1446 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1447 | (status == TPACPI_RFK_RADIO_ON) ? | |
1448 | "enable" : "disable", | |
1449 | tpacpi_rfkill_names[id]); | |
1450 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1451 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1452 | } | |
1453 | ||
1454 | return res; | |
1455 | } | |
1456 | ||
56b6aeb0 | 1457 | /************************************************************************* |
b21a15f6 | 1458 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1459 | */ |
1460 | ||
b21a15f6 HMH |
1461 | /* interface_version --------------------------------------------------- */ |
1462 | static ssize_t tpacpi_driver_interface_version_show( | |
1463 | struct device_driver *drv, | |
1464 | char *buf) | |
1da177e4 | 1465 | { |
b21a15f6 HMH |
1466 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1467 | } | |
1468 | ||
1469 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1470 | tpacpi_driver_interface_version_show, NULL); | |
1471 | ||
1472 | /* debug_level --------------------------------------------------------- */ | |
1473 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1474 | char *buf) | |
1475 | { | |
1476 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1477 | } | |
1478 | ||
1479 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1480 | const char *buf, size_t count) | |
1481 | { | |
1482 | unsigned long t; | |
1483 | ||
1484 | if (parse_strtoul(buf, 0xffff, &t)) | |
1485 | return -EINVAL; | |
1486 | ||
1487 | dbg_level = t; | |
1488 | ||
1489 | return count; | |
1490 | } | |
1491 | ||
1492 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1493 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1494 | ||
1495 | /* version ------------------------------------------------------------- */ | |
1496 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1497 | char *buf) | |
1498 | { | |
35ff8b9f HMH |
1499 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1500 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1501 | } |
1502 | ||
1503 | static DRIVER_ATTR(version, S_IRUGO, | |
1504 | tpacpi_driver_version_show, NULL); | |
1505 | ||
1506 | /* --------------------------------------------------------------------- */ | |
1507 | ||
a73f3091 HMH |
1508 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1509 | ||
a73f3091 HMH |
1510 | /* wlsw_emulstate ------------------------------------------------------ */ |
1511 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1512 | char *buf) | |
1513 | { | |
1514 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1515 | } | |
1516 | ||
1517 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1518 | const char *buf, size_t count) | |
1519 | { | |
1520 | unsigned long t; | |
1521 | ||
1522 | if (parse_strtoul(buf, 1, &t)) | |
1523 | return -EINVAL; | |
1524 | ||
19d337df | 1525 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1526 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1527 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1528 | } | |
a73f3091 HMH |
1529 | |
1530 | return count; | |
1531 | } | |
1532 | ||
1533 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1534 | tpacpi_driver_wlsw_emulstate_show, | |
1535 | tpacpi_driver_wlsw_emulstate_store); | |
1536 | ||
1537 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1538 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1539 | struct device_driver *drv, | |
1540 | char *buf) | |
1541 | { | |
1542 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1543 | } | |
1544 | ||
1545 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1546 | struct device_driver *drv, | |
1547 | const char *buf, size_t count) | |
1548 | { | |
1549 | unsigned long t; | |
1550 | ||
1551 | if (parse_strtoul(buf, 1, &t)) | |
1552 | return -EINVAL; | |
1553 | ||
1554 | tpacpi_bluetooth_emulstate = !!t; | |
1555 | ||
1556 | return count; | |
1557 | } | |
1558 | ||
1559 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1560 | tpacpi_driver_bluetooth_emulstate_show, | |
1561 | tpacpi_driver_bluetooth_emulstate_store); | |
1562 | ||
1563 | /* wwan_emulstate ------------------------------------------------- */ | |
1564 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1565 | struct device_driver *drv, | |
1566 | char *buf) | |
1567 | { | |
1568 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1569 | } | |
1570 | ||
1571 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1572 | struct device_driver *drv, | |
1573 | const char *buf, size_t count) | |
1574 | { | |
1575 | unsigned long t; | |
1576 | ||
1577 | if (parse_strtoul(buf, 1, &t)) | |
1578 | return -EINVAL; | |
1579 | ||
1580 | tpacpi_wwan_emulstate = !!t; | |
1581 | ||
1582 | return count; | |
1583 | } | |
1584 | ||
1585 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1586 | tpacpi_driver_wwan_emulstate_show, | |
1587 | tpacpi_driver_wwan_emulstate_store); | |
1588 | ||
0045c0aa HMH |
1589 | /* uwb_emulstate ------------------------------------------------- */ |
1590 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1591 | struct device_driver *drv, | |
1592 | char *buf) | |
1593 | { | |
1594 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1595 | } | |
1596 | ||
1597 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1598 | struct device_driver *drv, | |
1599 | const char *buf, size_t count) | |
1600 | { | |
1601 | unsigned long t; | |
1602 | ||
1603 | if (parse_strtoul(buf, 1, &t)) | |
1604 | return -EINVAL; | |
1605 | ||
1606 | tpacpi_uwb_emulstate = !!t; | |
1607 | ||
1608 | return count; | |
1609 | } | |
1610 | ||
1611 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1612 | tpacpi_driver_uwb_emulstate_show, | |
1613 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1614 | #endif |
1615 | ||
1616 | /* --------------------------------------------------------------------- */ | |
1617 | ||
35ff8b9f | 1618 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1619 | &driver_attr_debug_level, &driver_attr_version, |
1620 | &driver_attr_interface_version, | |
1621 | }; | |
1622 | ||
1623 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1624 | { | |
1625 | int i, res; | |
1626 | ||
1627 | i = 0; | |
1628 | res = 0; | |
1629 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1630 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1631 | i++; | |
1632 | } | |
1633 | ||
a73f3091 HMH |
1634 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1635 | if (!res && dbg_wlswemul) | |
1636 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1637 | if (!res && dbg_bluetoothemul) | |
1638 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1639 | if (!res && dbg_wwanemul) | |
1640 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1641 | if (!res && dbg_uwbemul) |
1642 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1643 | #endif |
1644 | ||
b21a15f6 HMH |
1645 | return res; |
1646 | } | |
1647 | ||
1648 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1649 | { | |
1650 | int i; | |
1651 | ||
35ff8b9f | 1652 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1653 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1654 | |
1655 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1656 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1657 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1658 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1659 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1660 | #endif |
b21a15f6 HMH |
1661 | } |
1662 | ||
600a99fa HMH |
1663 | /************************************************************************* |
1664 | * Firmware Data | |
1665 | */ | |
1666 | ||
1667 | /* | |
1668 | * Table of recommended minimum BIOS versions | |
1669 | * | |
1670 | * Reasons for listing: | |
1671 | * 1. Stable BIOS, listed because the unknown ammount of | |
1672 | * bugs and bad ACPI behaviour on older versions | |
1673 | * | |
1674 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1675 | * | |
1676 | * 3. BIOS with known reduced functionality in older versions | |
1677 | * | |
1678 | * We recommend the latest BIOS and EC version. | |
1679 | * We only support the latest BIOS and EC fw version as a rule. | |
1680 | * | |
1681 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1682 | * Information from users in ThinkWiki | |
e675abaf HMH |
1683 | * |
1684 | * WARNING: we use this table also to detect that the machine is | |
1685 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1686 | */ |
1687 | ||
1688 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1689 | { .vendor = (__v), \ | |
1690 | .bios = TPID(__id1, __id2), \ | |
1691 | .ec = TPACPI_MATCH_ANY, \ | |
1692 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1693 | | (__bv1) << 8 | (__bv2) } | |
1694 | ||
1695 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1696 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1697 | { .vendor = (__v), \ |
1698 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1699 | .ec = __eid, \ |
600a99fa HMH |
1700 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1701 | | (__bv1) << 8 | (__bv2) } | |
1702 | ||
1703 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1704 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1705 | ||
275014ae | 1706 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1707 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1708 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1709 | __bv1, __bv2, TPID(__id1, __id2), \ |
1710 | __ev1, __ev2), \ | |
1711 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1712 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1713 | __ev1, __ev2) | |
600a99fa | 1714 | |
275014ae | 1715 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1716 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1717 | __eid1, __eid2, __ev1, __ev2) \ | |
1718 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1719 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1720 | __ev1, __ev2), \ | |
1721 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1722 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1723 | __ev1, __ev2) | |
600a99fa HMH |
1724 | |
1725 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1726 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1727 | ||
1728 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1729 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1730 | __bv1, __bv2, TPID(__id1, __id2), \ |
1731 | __ev1, __ev2) | |
600a99fa HMH |
1732 | |
1733 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1734 | __eid1, __eid2, __ev1, __ev2) \ | |
1735 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1736 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1737 | __ev1, __ev2) | |
600a99fa HMH |
1738 | |
1739 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1740 | /* Numeric models ------------------ */ | |
1741 | /* FW MODEL BIOS VERS */ | |
1742 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1743 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1744 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1745 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1746 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1747 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1748 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1749 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1750 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1751 | ||
1752 | /* A-series ------------------------- */ | |
1753 | /* FW MODEL BIOS VERS EC VERS */ | |
1754 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1755 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1756 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1757 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1758 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1759 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1760 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1761 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1762 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1763 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1764 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1765 | ||
1766 | /* G-series ------------------------- */ | |
1767 | /* FW MODEL BIOS VERS */ | |
1768 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1769 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1770 | ||
1771 | /* R-series, T-series --------------- */ | |
1772 | /* FW MODEL BIOS VERS EC VERS */ | |
1773 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1774 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1775 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1776 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1777 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1778 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1779 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1780 | T40/p, T41/p, T42/p (1) */ | |
1781 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1782 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1783 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1784 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1785 | ||
1786 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1787 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1788 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1789 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1790 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1791 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1792 | ||
1793 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1794 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1795 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1796 | |
1797 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1798 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1799 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1800 | ||
1801 | /* X-series ------------------------- */ | |
1802 | /* FW MODEL BIOS VERS EC VERS */ | |
1803 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1804 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1805 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1806 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1807 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1808 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1809 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1810 | ||
90765c6a HMH |
1811 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1812 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1813 | |
1814 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1815 | /* (1) - older versions known to lack functionality */ | |
1816 | }; | |
1817 | ||
1818 | #undef TPV_QL1 | |
1819 | #undef TPV_QL0 | |
1820 | #undef TPV_QI2 | |
1821 | #undef TPV_QI1 | |
1822 | #undef TPV_QI0 | |
1823 | #undef TPV_Q_X | |
1824 | #undef TPV_Q | |
1825 | ||
1826 | static void __init tpacpi_check_outdated_fw(void) | |
1827 | { | |
1828 | unsigned long fwvers; | |
1829 | u16 ec_version, bios_version; | |
1830 | ||
1831 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1832 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1833 | ||
1834 | if (!fwvers) | |
1835 | return; | |
1836 | ||
1837 | bios_version = fwvers & 0xffffU; | |
1838 | ec_version = (fwvers >> 16) & 0xffffU; | |
1839 | ||
1840 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1841 | if ((bios_version > thinkpad_id.bios_release) || | |
1842 | (ec_version > thinkpad_id.ec_release && | |
1843 | ec_version != TPACPI_MATCH_ANY)) { | |
1844 | /* | |
1845 | * The changelogs would let us track down the exact | |
1846 | * reason, but it is just too much of a pain to track | |
1847 | * it. We only list BIOSes that are either really | |
1848 | * broken, or really stable to begin with, so it is | |
1849 | * best if the user upgrades the firmware anyway. | |
1850 | */ | |
1851 | printk(TPACPI_WARN | |
1852 | "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); | |
1853 | printk(TPACPI_WARN | |
1854 | "WARNING: This firmware may be missing critical bug " | |
1855 | "fixes and/or important features\n"); | |
1856 | } | |
1857 | } | |
1858 | ||
e675abaf HMH |
1859 | static bool __init tpacpi_is_fw_known(void) |
1860 | { | |
1861 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1862 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1863 | } | |
1864 | ||
b21a15f6 HMH |
1865 | /**************************************************************************** |
1866 | **************************************************************************** | |
1867 | * | |
1868 | * Subdrivers | |
1869 | * | |
1870 | **************************************************************************** | |
1871 | ****************************************************************************/ | |
1872 | ||
1873 | /************************************************************************* | |
1874 | * thinkpad-acpi init subdriver | |
1875 | */ | |
1876 | ||
1877 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1878 | { | |
e0c7dfe7 HMH |
1879 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1880 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1881 | |
e0c7dfe7 | 1882 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1883 | (thinkpad_id.bios_version_str) ? |
1884 | thinkpad_id.bios_version_str : "unknown", | |
1885 | (thinkpad_id.ec_version_str) ? | |
1886 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1887 | |
1888 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1889 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1890 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1891 | "IBM" : ((thinkpad_id.vendor == | |
1892 | PCI_VENDOR_ID_LENOVO) ? | |
1893 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1894 | thinkpad_id.model_str, |
1895 | (thinkpad_id.nummodel_str) ? | |
1896 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1897 | |
600a99fa | 1898 | tpacpi_check_outdated_fw(); |
1da177e4 LT |
1899 | return 0; |
1900 | } | |
1901 | ||
643f12db | 1902 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1903 | { |
1904 | int len = 0; | |
1905 | ||
e0c7dfe7 HMH |
1906 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1907 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1908 | |
1909 | return len; | |
1910 | } | |
1911 | ||
a5763f22 HMH |
1912 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1913 | .name = "driver", | |
1914 | .read = thinkpad_acpi_driver_read, | |
1915 | }; | |
1916 | ||
56b6aeb0 HMH |
1917 | /************************************************************************* |
1918 | * Hotkey subdriver | |
1919 | */ | |
1920 | ||
0d922e3b HMH |
1921 | /* |
1922 | * ThinkPad firmware event model | |
1923 | * | |
1924 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1925 | * notifications (which follow the ACPI standard), and a private event | |
1926 | * interface. | |
1927 | * | |
1928 | * The private event interface also issues events for the hotkeys. As | |
1929 | * the driver gained features, the event handling code ended up being | |
1930 | * built around the hotkey subdriver. This will need to be refactored | |
1931 | * to a more formal event API eventually. | |
1932 | * | |
1933 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1934 | * such as "brightness has changed", "volume has changed", depending on | |
1935 | * the ThinkPad model and how the firmware is operating. | |
1936 | * | |
1937 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1938 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1939 | * firmware model and version. | |
1940 | */ | |
1941 | ||
f74a27d4 HMH |
1942 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1943 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1944 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1945 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1946 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1947 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1948 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1949 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1950 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1951 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1952 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1953 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1954 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1955 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1956 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1957 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1958 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1959 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1960 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1961 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1962 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1963 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1964 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1965 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1966 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1967 | }; | |
1968 | ||
0d922e3b | 1969 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1970 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1971 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1972 | }; | |
1973 | ||
1974 | enum { /* Positions of some of the keys in hotkey masks */ | |
1975 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1976 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1977 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1978 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1979 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1980 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1981 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1982 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1983 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1984 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1985 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1986 | }; | |
1987 | ||
1988 | enum { /* NVRAM to ACPI HKEY group map */ | |
1989 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1990 | TP_ACPI_HKEY_ZOOM_MASK | | |
1991 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1992 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1993 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1994 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1995 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1996 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1997 | TP_ACPI_HKEY_MUTE_MASK, | |
1998 | }; | |
1999 | ||
2000 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2001 | struct tp_nvram_state { | |
2002 | u16 thinkpad_toggle:1; | |
2003 | u16 zoom_toggle:1; | |
2004 | u16 display_toggle:1; | |
2005 | u16 thinklight_toggle:1; | |
2006 | u16 hibernate_toggle:1; | |
2007 | u16 displayexp_toggle:1; | |
2008 | u16 display_state:1; | |
2009 | u16 brightness_toggle:1; | |
2010 | u16 volume_toggle:1; | |
2011 | u16 mute:1; | |
2012 | ||
2013 | u8 brightness_level; | |
2014 | u8 volume_level; | |
2015 | }; | |
2016 | ||
db25f16d | 2017 | /* kthread for the hotkey poller */ |
01e88f25 | 2018 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d HMH |
2019 | |
2020 | /* Acquired while the poller kthread is running, use to sync start/stop */ | |
01e88f25 | 2021 | static struct mutex hotkey_thread_mutex; |
db25f16d HMH |
2022 | |
2023 | /* | |
0d922e3b HMH |
2024 | * Acquire mutex to write poller control variables as an |
2025 | * atomic block. | |
2026 | * | |
2027 | * Increment hotkey_config_change when changing them if you | |
2028 | * want the kthread to forget old state. | |
db25f16d HMH |
2029 | * |
2030 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2031 | */ | |
01e88f25 HMH |
2032 | static struct mutex hotkey_thread_data_mutex; |
2033 | static unsigned int hotkey_config_change; | |
2034 | ||
db25f16d HMH |
2035 | /* |
2036 | * hotkey poller control variables | |
2037 | * | |
2038 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2039 | * |
2040 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2041 | * should be used only when the changes need to be taken as | |
2042 | * a block, OR when one needs to force the kthread to forget | |
2043 | * old state. | |
db25f16d HMH |
2044 | */ |
2045 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2046 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2047 | ||
2048 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2049 | do { \ | |
2050 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2051 | hotkey_config_change++; \ | |
2052 | } while (0); | |
2053 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2054 | mutex_unlock(&hotkey_thread_data_mutex); | |
2055 | ||
01e88f25 HMH |
2056 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2057 | ||
2058 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2059 | #define HOTKEY_CONFIG_CRITICAL_START |
2060 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2061 | |
2062 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2063 | ||
f74a27d4 HMH |
2064 | static struct mutex hotkey_mutex; |
2065 | ||
a713b4d7 HMH |
2066 | static enum { /* Reasons for waking up */ |
2067 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2068 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2069 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2070 | } hotkey_wakeup_reason; | |
2071 | ||
2072 | static int hotkey_autosleep_ack; | |
2073 | ||
0d922e3b HMH |
2074 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2075 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2076 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2077 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2078 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2079 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2080 | |
b21a15f6 HMH |
2081 | static unsigned int hotkey_report_mode; |
2082 | ||
edf0e0e5 | 2083 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2084 | |
94954cc6 | 2085 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2086 | |
8b468c0c HMH |
2087 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2088 | static void hotkey_driver_event(const unsigned int scancode); | |
2089 | ||
6c231bd5 HMH |
2090 | /* HKEY.MHKG() return bits */ |
2091 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2092 | ||
19d337df | 2093 | static int hotkey_get_wlsw(void) |
74941a69 | 2094 | { |
19d337df JB |
2095 | int status; |
2096 | ||
2097 | if (!tp_features.hotkey_wlsw) | |
2098 | return -ENODEV; | |
2099 | ||
a73f3091 | 2100 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2101 | if (dbg_wlswemul) |
2102 | return (tpacpi_wlsw_emulstate) ? | |
2103 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2104 | #endif |
19d337df JB |
2105 | |
2106 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2107 | return -EIO; |
19d337df JB |
2108 | |
2109 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2110 | } |
2111 | ||
6c231bd5 HMH |
2112 | static int hotkey_get_tablet_mode(int *status) |
2113 | { | |
2114 | int s; | |
2115 | ||
2116 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2117 | return -EIO; | |
2118 | ||
cee47f5a HMH |
2119 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2120 | return 0; | |
6c231bd5 HMH |
2121 | } |
2122 | ||
b2c985e7 | 2123 | /* |
0d922e3b HMH |
2124 | * Reads current event mask from firmware, and updates |
2125 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2126 | * from hotkey_user_mask that are unavailable to be | |
2127 | * delivered (shadow requirement of the userspace ABI). | |
2128 | * | |
b2c985e7 HMH |
2129 | * Call with hotkey_mutex held |
2130 | */ | |
2131 | static int hotkey_mask_get(void) | |
2132 | { | |
2133 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2134 | u32 m = 0; |
2135 | ||
01e88f25 | 2136 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2137 | return -EIO; |
0d922e3b HMH |
2138 | |
2139 | hotkey_acpi_mask = m; | |
2140 | } else { | |
2141 | /* no mask support doesn't mean no event support... */ | |
2142 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2143 | } |
0d922e3b HMH |
2144 | |
2145 | /* sync userspace-visible mask */ | |
2146 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2147 | |
2148 | return 0; | |
2149 | } | |
2150 | ||
0d922e3b HMH |
2151 | void static hotkey_mask_warn_incomplete_mask(void) |
2152 | { | |
2153 | /* log only what the user can fix... */ | |
2154 | const u32 wantedmask = hotkey_driver_mask & | |
2155 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2156 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2157 | ||
2158 | if (wantedmask) | |
2159 | printk(TPACPI_NOTICE | |
2160 | "required events 0x%08x not enabled!\n", | |
2161 | wantedmask); | |
2162 | } | |
2163 | ||
b2c985e7 | 2164 | /* |
0d922e3b HMH |
2165 | * Set the firmware mask when supported |
2166 | * | |
2167 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2168 | * | |
2169 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2170 | * | |
b2c985e7 HMH |
2171 | * Call with hotkey_mutex held |
2172 | */ | |
2173 | static int hotkey_mask_set(u32 mask) | |
2174 | { | |
2175 | int i; | |
2176 | int rc = 0; | |
2177 | ||
0d922e3b | 2178 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2179 | |
0d922e3b | 2180 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2181 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2182 | if (!acpi_evalf(hkey_handle, |
2183 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2184 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2185 | rc = -EIO; |
2186 | break; | |
b2c985e7 HMH |
2187 | } |
2188 | } | |
0d922e3b | 2189 | } |
b2c985e7 | 2190 | |
0d922e3b HMH |
2191 | /* |
2192 | * We *must* make an inconditional call to hotkey_mask_get to | |
2193 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2194 | * | |
2195 | * Take the opportunity to also log when we cannot _enable_ | |
2196 | * a given event. | |
2197 | */ | |
2198 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
2199 | printk(TPACPI_NOTICE | |
2200 | "asked for hotkey mask 0x%08x, but " | |
2201 | "firmware forced it to 0x%08x\n", | |
2202 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2203 | } |
2204 | ||
6b30eb7d HMH |
2205 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2206 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2207 | |
2208 | return rc; | |
2209 | } | |
2210 | ||
2211 | /* | |
2212 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2213 | * | |
2214 | * Call with hotkey_mutex held | |
2215 | */ | |
2216 | static int hotkey_user_mask_set(const u32 mask) | |
2217 | { | |
2218 | int rc; | |
2219 | ||
2220 | /* Give people a chance to notice they are doing something that | |
2221 | * is bound to go boom on their users sooner or later */ | |
2222 | if (!tp_warned.hotkey_mask_ff && | |
2223 | (mask == 0xffff || mask == 0xffffff || | |
2224 | mask == 0xffffffff)) { | |
2225 | tp_warned.hotkey_mask_ff = 1; | |
2226 | printk(TPACPI_NOTICE | |
2227 | "setting the hotkey mask to 0x%08x is likely " | |
2228 | "not the best way to go about it\n", mask); | |
2229 | printk(TPACPI_NOTICE | |
2230 | "please consider using the driver defaults, " | |
2231 | "and refer to up-to-date thinkpad-acpi " | |
2232 | "documentation\n"); | |
2233 | } | |
2234 | ||
2235 | /* Try to enable what the user asked for, plus whatever we need. | |
2236 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2237 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2238 | ||
2239 | /* Enable the available bits in hotkey_user_mask */ | |
2240 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2241 | ||
b2c985e7 HMH |
2242 | return rc; |
2243 | } | |
2244 | ||
8b468c0c HMH |
2245 | /* |
2246 | * Sets the driver hotkey mask. | |
2247 | * | |
2248 | * Can be called even if the hotkey subdriver is inactive | |
2249 | */ | |
2250 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2251 | { | |
2252 | int rc; | |
2253 | ||
2254 | /* Do the right thing if hotkey_init has not been called yet */ | |
2255 | if (!tp_features.hotkey) { | |
2256 | hotkey_driver_mask = mask; | |
2257 | return 0; | |
2258 | } | |
2259 | ||
2260 | mutex_lock(&hotkey_mutex); | |
2261 | ||
2262 | HOTKEY_CONFIG_CRITICAL_START | |
2263 | hotkey_driver_mask = mask; | |
b684a363 | 2264 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2265 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2266 | #endif |
8b468c0c HMH |
2267 | HOTKEY_CONFIG_CRITICAL_END |
2268 | ||
2269 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2270 | ~hotkey_source_mask); | |
2271 | mutex_unlock(&hotkey_mutex); | |
2272 | ||
2273 | return rc; | |
2274 | } | |
2275 | ||
b2c985e7 HMH |
2276 | static int hotkey_status_get(int *status) |
2277 | { | |
2278 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2279 | return -EIO; | |
2280 | ||
2281 | return 0; | |
2282 | } | |
2283 | ||
2586d566 | 2284 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2285 | { |
2586d566 | 2286 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2287 | return -EIO; |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | ||
6c231bd5 | 2292 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2293 | { |
6c231bd5 | 2294 | int state; |
b3ec6f91 | 2295 | |
6c231bd5 HMH |
2296 | if (tp_features.hotkey_tablet && |
2297 | !hotkey_get_tablet_mode(&state)) { | |
2298 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2299 | |
6c231bd5 HMH |
2300 | input_report_switch(tpacpi_inputdev, |
2301 | SW_TABLET_MODE, !!state); | |
2302 | input_sync(tpacpi_inputdev); | |
2303 | ||
2304 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2305 | } | |
b3ec6f91 HMH |
2306 | } |
2307 | ||
0d922e3b HMH |
2308 | /* Do NOT call without validating scancode first */ |
2309 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2310 | { |
0d922e3b | 2311 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2312 | |
2313 | if (keycode != KEY_RESERVED) { | |
2314 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2315 | ||
2316 | input_report_key(tpacpi_inputdev, keycode, 1); | |
2317 | if (keycode == KEY_UNKNOWN) | |
2318 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2319 | scancode); | |
2320 | input_sync(tpacpi_inputdev); | |
2321 | ||
2322 | input_report_key(tpacpi_inputdev, keycode, 0); | |
2323 | if (keycode == KEY_UNKNOWN) | |
2324 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2325 | scancode); | |
2326 | input_sync(tpacpi_inputdev); | |
2327 | ||
2328 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2329 | } | |
2330 | } | |
2331 | ||
0d922e3b HMH |
2332 | /* Do NOT call without validating scancode first */ |
2333 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2334 | { | |
8b468c0c | 2335 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2336 | if (hotkey_user_mask & (1 << scancode)) |
2337 | tpacpi_input_send_key(scancode); | |
2338 | } | |
2339 | ||
01e88f25 HMH |
2340 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2341 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2342 | ||
0d922e3b | 2343 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2344 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2345 | { | |
0d922e3b | 2346 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2347 | if (hotkey_report_mode < 2) { |
2348 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
67bcae6e | 2349 | 0x80, TP_HKEY_EV_HOTKEY_BASE + scancode); |
01e88f25 HMH |
2350 | } |
2351 | } | |
2352 | ||
0d922e3b | 2353 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2354 | { |
2355 | u8 d; | |
2356 | ||
2357 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2358 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2359 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2360 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2361 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2362 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2363 | } | |
2364 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2365 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2366 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2367 | } | |
2368 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2369 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2370 | n->displayexp_toggle = | |
2371 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2372 | } | |
2373 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2374 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2375 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2376 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2377 | n->brightness_toggle = | |
2378 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2379 | } | |
2380 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2381 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2382 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2383 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2384 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2385 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2386 | } | |
2387 | } | |
2388 | ||
0d922e3b HMH |
2389 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, |
2390 | struct tp_nvram_state *newn, | |
2391 | const u32 event_mask) | |
2392 | { | |
2393 | ||
01e88f25 | 2394 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ |
35ff8b9f | 2395 | do { \ |
0d922e3b | 2396 | if ((event_mask & (1 << __scancode)) && \ |
35ff8b9f | 2397 | oldn->__member != newn->__member) \ |
0d922e3b | 2398 | tpacpi_hotkey_send_key(__scancode); \ |
35ff8b9f | 2399 | } while (0) |
01e88f25 HMH |
2400 | |
2401 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
0d922e3b HMH |
2402 | do { \ |
2403 | if (event_mask & (1 << __scancode)) \ | |
2404 | tpacpi_hotkey_send_key(__scancode); \ | |
2405 | } while (0) | |
01e88f25 | 2406 | |
01e88f25 HMH |
2407 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2408 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2409 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2410 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2411 | ||
2412 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2413 | ||
2414 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2415 | ||
2416 | /* handle volume */ | |
2417 | if (oldn->volume_toggle != newn->volume_toggle) { | |
2418 | if (oldn->mute != newn->mute) { | |
2419 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2420 | } | |
2421 | if (oldn->volume_level > newn->volume_level) { | |
2422 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2423 | } else if (oldn->volume_level < newn->volume_level) { | |
2424 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2425 | } else if (oldn->mute == newn->mute) { | |
2426 | /* repeated key presses that didn't change state */ | |
2427 | if (newn->mute) { | |
2428 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2429 | } else if (newn->volume_level != 0) { | |
2430 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2431 | } else { | |
2432 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2433 | } | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | /* handle brightness */ | |
2438 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
2439 | if (oldn->brightness_level < newn->brightness_level) { | |
2440 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2441 | } else if (oldn->brightness_level > newn->brightness_level) { | |
2442 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2443 | } else { | |
2444 | /* repeated key presses that didn't change state */ | |
2445 | if (newn->brightness_level != 0) { | |
2446 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2447 | } else { | |
2448 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2449 | } | |
2450 | } | |
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 */ | |
db25f16d | 2555 | static void hotkey_poll_setup(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 | ||
db25f16d | 2586 | static void hotkey_poll_setup_safe(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 | ||
db25f16d | 2604 | static void hotkey_poll_setup_safe(bool __unused) |
1bc6b9cd HMH |
2605 | { |
2606 | } | |
2607 | ||
2608 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2609 | ||
01e88f25 HMH |
2610 | static int hotkey_inputdev_open(struct input_dev *dev) |
2611 | { | |
2612 | switch (tpacpi_lifecycle) { | |
2613 | case TPACPI_LIFE_INIT: | |
2614 | /* | |
2615 | * hotkey_init will call hotkey_poll_setup_safe | |
2616 | * at the appropriate moment | |
2617 | */ | |
2618 | return 0; | |
2619 | case TPACPI_LIFE_EXITING: | |
2620 | return -EBUSY; | |
2621 | case TPACPI_LIFE_RUNNING: | |
db25f16d | 2622 | hotkey_poll_setup_safe(false); |
01e88f25 HMH |
2623 | return 0; |
2624 | } | |
2625 | ||
2626 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2627 | BUG(); | |
2628 | return -EBUSY; | |
2629 | } | |
2630 | ||
2631 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2632 | { | |
2633 | /* disable hotkey polling when possible */ | |
0d922e3b HMH |
2634 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING && |
2635 | !(hotkey_source_mask & hotkey_driver_mask)) | |
db25f16d | 2636 | hotkey_poll_setup_safe(false); |
01e88f25 | 2637 | } |
01e88f25 | 2638 | |
a0416420 HMH |
2639 | /* sysfs hotkey enable ------------------------------------------------- */ |
2640 | static ssize_t hotkey_enable_show(struct device *dev, | |
2641 | struct device_attribute *attr, | |
2642 | char *buf) | |
2643 | { | |
ae92bd17 | 2644 | int res, status; |
a0416420 | 2645 | |
2586d566 HMH |
2646 | printk_deprecated_attribute("hotkey_enable", |
2647 | "Hotkey reporting is always enabled"); | |
2648 | ||
b2c985e7 | 2649 | res = hotkey_status_get(&status); |
a0416420 HMH |
2650 | if (res) |
2651 | return res; | |
2652 | ||
2653 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2654 | } | |
2655 | ||
2656 | static ssize_t hotkey_enable_store(struct device *dev, | |
2657 | struct device_attribute *attr, | |
2658 | const char *buf, size_t count) | |
2659 | { | |
2660 | unsigned long t; | |
2586d566 HMH |
2661 | |
2662 | printk_deprecated_attribute("hotkey_enable", | |
2663 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2664 | |
2665 | if (parse_strtoul(buf, 1, &t)) | |
2666 | return -EINVAL; | |
2667 | ||
2586d566 HMH |
2668 | if (t == 0) |
2669 | return -EPERM; | |
a0416420 | 2670 | |
2586d566 | 2671 | return count; |
a0416420 HMH |
2672 | } |
2673 | ||
2674 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 2675 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2676 | hotkey_enable_show, hotkey_enable_store); |
2677 | ||
2678 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2679 | static ssize_t hotkey_mask_show(struct device *dev, | |
2680 | struct device_attribute *attr, | |
2681 | char *buf) | |
2682 | { | |
0d922e3b | 2683 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2684 | } |
2685 | ||
2686 | static ssize_t hotkey_mask_store(struct device *dev, | |
2687 | struct device_attribute *attr, | |
2688 | const char *buf, size_t count) | |
2689 | { | |
2690 | unsigned long t; | |
b2c985e7 | 2691 | int res; |
a0416420 | 2692 | |
ae92bd17 | 2693 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2694 | return -EINVAL; |
2695 | ||
7646ea88 | 2696 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2697 | return -ERESTARTSYS; |
2698 | ||
0d922e3b | 2699 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2700 | |
2701 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2702 | hotkey_poll_setup(true); |
01e88f25 HMH |
2703 | #endif |
2704 | ||
b2c985e7 | 2705 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2706 | |
56e2c200 HMH |
2707 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2708 | ||
a0416420 HMH |
2709 | return (res) ? res : count; |
2710 | } | |
2711 | ||
2712 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 2713 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2714 | hotkey_mask_show, hotkey_mask_store); |
2715 | ||
2716 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2717 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2718 | struct device_attribute *attr, | |
2719 | char *buf) | |
2720 | { | |
2586d566 | 2721 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2722 | } |
2723 | ||
2724 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 2725 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
2726 | |
2727 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2728 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2729 | struct device_attribute *attr, | |
2730 | char *buf) | |
2731 | { | |
06777be6 HMH |
2732 | printk_deprecated_attribute("hotkey_bios_mask", |
2733 | "This attribute is useless."); | |
ae92bd17 | 2734 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2735 | } |
2736 | ||
2737 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 2738 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 2739 | |
9b010de5 HMH |
2740 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2741 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2742 | struct device_attribute *attr, | |
2743 | char *buf) | |
2744 | { | |
01e88f25 HMH |
2745 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2746 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2747 | } |
2748 | ||
2749 | static struct device_attribute dev_attr_hotkey_all_mask = | |
2750 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
2751 | ||
2752 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2753 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2754 | struct device_attribute *attr, | |
2755 | char *buf) | |
2756 | { | |
2757 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2758 | (hotkey_all_mask | hotkey_source_mask) |
2759 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2760 | } |
2761 | ||
2762 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
2763 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
2764 | hotkey_recommended_mask_show, NULL); | |
2765 | ||
01e88f25 HMH |
2766 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2767 | ||
2768 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2769 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2770 | struct device_attribute *attr, | |
2771 | char *buf) | |
2772 | { | |
2773 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2774 | } | |
2775 | ||
2776 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2777 | struct device_attribute *attr, | |
2778 | const char *buf, size_t count) | |
2779 | { | |
2780 | unsigned long t; | |
0d922e3b HMH |
2781 | u32 r_ev; |
2782 | int rc; | |
01e88f25 HMH |
2783 | |
2784 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2785 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2786 | return -EINVAL; | |
2787 | ||
7646ea88 | 2788 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2789 | return -ERESTARTSYS; |
2790 | ||
2791 | HOTKEY_CONFIG_CRITICAL_START | |
2792 | hotkey_source_mask = t; | |
2793 | HOTKEY_CONFIG_CRITICAL_END | |
2794 | ||
0d922e3b HMH |
2795 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2796 | ~hotkey_source_mask); | |
db25f16d | 2797 | hotkey_poll_setup(true); |
0d922e3b HMH |
2798 | |
2799 | /* check if events needed by the driver got disabled */ | |
2800 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2801 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2802 | |
2803 | mutex_unlock(&hotkey_mutex); | |
2804 | ||
0d922e3b HMH |
2805 | if (rc < 0) |
2806 | printk(TPACPI_ERR "hotkey_source_mask: failed to update the" | |
2807 | "firmware event mask!\n"); | |
2808 | ||
2809 | if (r_ev) | |
2810 | printk(TPACPI_NOTICE "hotkey_source_mask: " | |
2811 | "some important events were disabled: " | |
2812 | "0x%04x\n", r_ev); | |
2813 | ||
56e2c200 HMH |
2814 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2815 | ||
0d922e3b | 2816 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2817 | } |
2818 | ||
2819 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2820 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2821 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2822 | ||
2823 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2824 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2825 | struct device_attribute *attr, | |
2826 | char *buf) | |
2827 | { | |
2828 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2829 | } | |
2830 | ||
2831 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2832 | struct device_attribute *attr, | |
2833 | const char *buf, size_t count) | |
2834 | { | |
2835 | unsigned long t; | |
2836 | ||
2837 | if (parse_strtoul(buf, 25, &t)) | |
2838 | return -EINVAL; | |
2839 | ||
7646ea88 | 2840 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2841 | return -ERESTARTSYS; |
2842 | ||
db25f16d HMH |
2843 | hotkey_poll_set_freq(t); |
2844 | hotkey_poll_setup(true); | |
01e88f25 | 2845 | |
01e88f25 HMH |
2846 | mutex_unlock(&hotkey_mutex); |
2847 | ||
56e2c200 HMH |
2848 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2849 | ||
01e88f25 HMH |
2850 | return count; |
2851 | } | |
2852 | ||
2853 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2854 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2855 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2856 | ||
2857 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2858 | ||
50ebec09 | 2859 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2860 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2861 | struct device_attribute *attr, | |
2862 | char *buf) | |
2863 | { | |
19d337df JB |
2864 | int res; |
2865 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2866 | if (res < 0) |
2867 | return res; | |
2868 | ||
19d337df JB |
2869 | /* Opportunistic update */ |
2870 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2871 | ||
2872 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2873 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2874 | } |
2875 | ||
2876 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2877 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2878 | ||
50ebec09 HMH |
2879 | static void hotkey_radio_sw_notify_change(void) |
2880 | { | |
2881 | if (tp_features.hotkey_wlsw) | |
2882 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2883 | "hotkey_radio_sw"); | |
2884 | } | |
2885 | ||
6c231bd5 HMH |
2886 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2887 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2888 | struct device_attribute *attr, | |
2889 | char *buf) | |
2890 | { | |
2891 | int res, s; | |
2892 | res = hotkey_get_tablet_mode(&s); | |
2893 | if (res < 0) | |
2894 | return res; | |
2895 | ||
2896 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2897 | } | |
2898 | ||
2899 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2900 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2901 | ||
2902 | static void hotkey_tablet_mode_notify_change(void) | |
2903 | { | |
2904 | if (tp_features.hotkey_tablet) | |
2905 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2906 | "hotkey_tablet_mode"); | |
2907 | } | |
2908 | ||
ff80f137 HMH |
2909 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2910 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2911 | struct device_attribute *attr, | |
2912 | char *buf) | |
2913 | { | |
2914 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2915 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2916 | } | |
2917 | ||
2918 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2919 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2920 | ||
50ebec09 | 2921 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2922 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2923 | struct device_attribute *attr, | |
2924 | char *buf) | |
2925 | { | |
2926 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2927 | } | |
2928 | ||
2929 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2930 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2931 | ||
1d5a2b54 | 2932 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2933 | { |
0d922e3b HMH |
2934 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2935 | "wakeup_reason"); | |
50ebec09 HMH |
2936 | } |
2937 | ||
2938 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2939 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2940 | struct device_attribute *attr, | |
2941 | char *buf) | |
2942 | { | |
2943 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2944 | } | |
2945 | ||
2946 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2947 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2948 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2949 | ||
1d5a2b54 | 2950 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2951 | { |
0d922e3b HMH |
2952 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2953 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2954 | } |
2955 | ||
a0416420 HMH |
2956 | /* --------------------------------------------------------------------- */ |
2957 | ||
ff80f137 HMH |
2958 | static struct attribute *hotkey_attributes[] __initdata = { |
2959 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2960 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2961 | &dev_attr_hotkey_bios_mask.attr, |
ff80f137 | 2962 | &dev_attr_hotkey_report_mode.attr, |
0d922e3b HMH |
2963 | &dev_attr_hotkey_wakeup_reason.attr, |
2964 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2965 | &dev_attr_hotkey_mask.attr, |
2966 | &dev_attr_hotkey_all_mask.attr, | |
2967 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2968 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2969 | &dev_attr_hotkey_source_mask.attr, |
2970 | &dev_attr_hotkey_poll_freq.attr, | |
2971 | #endif | |
ff80f137 HMH |
2972 | }; |
2973 | ||
19d337df JB |
2974 | /* |
2975 | * Sync both the hw and sw blocking state of all switches | |
2976 | */ | |
733e27c1 HMH |
2977 | static void tpacpi_send_radiosw_update(void) |
2978 | { | |
2979 | int wlsw; | |
2980 | ||
19d337df JB |
2981 | /* |
2982 | * We must sync all rfkill controllers *before* issuing any | |
2983 | * rfkill input events, or we will race the rfkill core input | |
2984 | * handler. | |
2985 | * | |
2986 | * tpacpi_inputdev_send_mutex works as a syncronization point | |
2987 | * for the above. | |
2988 | * | |
2989 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
2990 | */ | |
2991 | ||
2992 | wlsw = hotkey_get_wlsw(); | |
2993 | ||
2994 | /* Sync hw blocking state first if it is hw-blocked */ | |
2995 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
2996 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 2997 | |
19d337df JB |
2998 | /* Sync sw blocking state */ |
2999 | tpacpi_rfk_update_swstate_all(); | |
3000 | ||
3001 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3002 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3003 | tpacpi_rfk_update_hwblock_state(false); | |
3004 | ||
3005 | /* Issue rfkill input event for WLSW switch */ | |
3006 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3007 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3008 | ||
3009 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3010 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3011 | input_sync(tpacpi_inputdev); |
3012 | ||
3013 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3014 | } | |
19d337df JB |
3015 | |
3016 | /* | |
3017 | * this can be unconditional, as we will poll state again | |
3018 | * if userspace uses the notify to read data | |
3019 | */ | |
733e27c1 HMH |
3020 | hotkey_radio_sw_notify_change(); |
3021 | } | |
3022 | ||
9c0a76e1 HMH |
3023 | static void hotkey_exit(void) |
3024 | { | |
3025 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3026 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3027 | hotkey_poll_stop_sync(); |
db25f16d | 3028 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3029 | #endif |
3030 | ||
3031 | if (hotkey_dev_attributes) | |
3032 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3033 | ||
3034 | kfree(hotkey_keycode_map); | |
3035 | ||
4be73005 | 3036 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3037 | "restoring original HKEY status and mask\n"); |
3038 | /* yes, there is a bitwise or below, we want the | |
3039 | * functions to be called even if one of them fail */ | |
3040 | if (((tp_features.hotkey_mask && | |
3041 | hotkey_mask_set(hotkey_orig_mask)) | | |
3042 | hotkey_status_set(false)) != 0) | |
4be73005 HMH |
3043 | printk(TPACPI_ERR |
3044 | "failed to restore hot key mask " | |
3045 | "to BIOS defaults\n"); | |
9c0a76e1 HMH |
3046 | } |
3047 | ||
de4c8cc7 HMH |
3048 | static void __init hotkey_unmap(const unsigned int scancode) |
3049 | { | |
3050 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3051 | clear_bit(hotkey_keycode_map[scancode], | |
3052 | tpacpi_inputdev->keybit); | |
3053 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3054 | } | |
3055 | } | |
3056 | ||
0d922e3b HMH |
3057 | /* |
3058 | * HKEY quirks: | |
3059 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3060 | */ | |
3061 | ||
3062 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3063 | ||
3064 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3065 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3066 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3067 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3068 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3069 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3070 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3071 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3072 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3073 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3074 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3075 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3076 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3077 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3078 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3079 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3080 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3081 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3082 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3083 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3084 | }; | |
3085 | ||
a5763f22 | 3086 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3087 | { |
0f089147 HMH |
3088 | /* Requirements for changing the default keymaps: |
3089 | * | |
3090 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3091 | * good reasons. Do not change them unless you have deep | |
3092 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3093 | * the various ThinkPad models. The driver behaves | |
3094 | * differently for KEY_RESERVED: such keys have their | |
3095 | * hot key mask *unset* in mask_recommended, and also | |
3096 | * in the initial hot key mask programmed into the | |
3097 | * firmware at driver load time, which means the firm- | |
3098 | * ware may react very differently if you change them to | |
3099 | * something else; | |
3100 | * | |
3101 | * 2. You must be subscribed to the linux-thinkpad and | |
3102 | * ibm-acpi-devel mailing lists, and you should read the | |
3103 | * list archives since 2007 if you want to change the | |
3104 | * keymaps. This requirement exists so that you will | |
3105 | * know the past history of problems with the thinkpad- | |
3106 | * acpi driver keymaps, and also that you will be | |
3107 | * listening to any bug reports; | |
3108 | * | |
3109 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3110 | * for merging, *ever*. Send them to the linux-acpi | |
3111 | * mailinglist for comments. Merging is to be done only | |
3112 | * through acpi-test and the ACPI maintainer. | |
3113 | * | |
3114 | * If the above is too much to ask, don't change the keymap. | |
3115 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3116 | */ | |
edf0e0e5 HMH |
3117 | static u16 ibm_keycode_map[] __initdata = { |
3118 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3119 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
3120 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3121 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3122 | |
3123 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3124 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3125 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3126 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3127 | |
0d922e3b | 3128 | /* brightness: firmware always reacts to them */ |
e927c08d | 3129 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3130 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3131 | |
3132 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3133 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3134 | |
edf0e0e5 HMH |
3135 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3136 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3137 | |
3138 | /* Volume: firmware always react to it and reprograms | |
3139 | * the built-in *extra* mixer. Never map it to control | |
3140 | * another mixer by default. */ | |
e927c08d HMH |
3141 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3142 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3143 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3144 | |
edf0e0e5 | 3145 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3146 | |
edf0e0e5 HMH |
3147 | /* (assignments unknown, please report if found) */ |
3148 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3149 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3150 | }; | |
3151 | static u16 lenovo_keycode_map[] __initdata = { | |
3152 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3153 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
3154 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3155 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3156 | |
3157 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3158 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3159 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3160 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3161 | |
de4c8cc7 HMH |
3162 | /* These should be enabled --only-- when ACPI video |
3163 | * is disabled (i.e. in "vendor" mode), and are handled | |
3164 | * in a special way by the init code */ | |
3165 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3166 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3167 | |
edf0e0e5 | 3168 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3169 | |
edf0e0e5 HMH |
3170 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3171 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3172 | |
3173 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3174 | * react to it and reprograms the built-in *extra* mixer. | |
3175 | * Never map it to control another mixer by default. | |
3176 | * | |
3177 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3178 | * these over the regular keyboard, so these are no-ops, | |
3179 | * but there are still weird bugs re. MUTE, so do not | |
3180 | * change unless you get test reports from all Lenovo | |
3181 | * models. May cause the BIOS to interfere with the | |
3182 | * HDA mixer. | |
3183 | */ | |
e927c08d HMH |
3184 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3185 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3186 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3187 | |
edf0e0e5 | 3188 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3189 | |
edf0e0e5 HMH |
3190 | /* (assignments unknown, please report if found) */ |
3191 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3192 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3193 | }; | |
3194 | ||
3195 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
3196 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
3197 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
3198 | ||
6a38abbf | 3199 | int res, i; |
74941a69 | 3200 | int status; |
1b6521dc | 3201 | int hkeyv; |
d89a727a HMH |
3202 | bool radiosw_state = false; |
3203 | bool tabletsw_state = false; | |
b86c4722 | 3204 | |
0d922e3b HMH |
3205 | unsigned long quirks; |
3206 | ||
56e2c200 HMH |
3207 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3208 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3209 | |
6a38abbf | 3210 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3211 | BUG_ON(tpacpi_inputdev->open != NULL || |
3212 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3213 | |
e0c7dfe7 | 3214 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3215 | mutex_init(&hotkey_mutex); |
5fba344c | 3216 | |
01e88f25 HMH |
3217 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
3218 | mutex_init(&hotkey_thread_mutex); | |
3219 | mutex_init(&hotkey_thread_data_mutex); | |
3220 | #endif | |
3221 | ||
56b6aeb0 | 3222 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3223 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3224 | |
56e2c200 HMH |
3225 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3226 | "hotkeys are %s\n", | |
d8fd94d9 | 3227 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3228 | |
9c0a76e1 HMH |
3229 | if (!tp_features.hotkey) |
3230 | return 1; | |
a0416420 | 3231 | |
0d922e3b HMH |
3232 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3233 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3234 | ||
d64c81c4 HMH |
3235 | tpacpi_disable_brightness_delay(); |
3236 | ||
0d922e3b HMH |
3237 | /* MUST have enough space for all attributes to be added to |
3238 | * hotkey_dev_attributes */ | |
3239 | hotkey_dev_attributes = create_attr_set( | |
3240 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3241 | NULL); | |
9c0a76e1 HMH |
3242 | if (!hotkey_dev_attributes) |
3243 | return -ENOMEM; | |
3244 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3245 | hotkey_attributes, | |
3246 | ARRAY_SIZE(hotkey_attributes)); | |
3247 | if (res) | |
3248 | goto err_exit; | |
3249 | ||
0d922e3b | 3250 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3251 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3252 | for HKEY interface version 0x100 */ | |
3253 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3254 | if ((hkeyv >> 8) != 1) { | |
3255 | printk(TPACPI_ERR "unknown version of the " | |
3256 | "HKEY interface: 0x%x\n", hkeyv); | |
3257 | printk(TPACPI_ERR "please report this to %s\n", | |
3258 | TPACPI_MAIL); | |
3259 | } else { | |
3260 | /* | |
3261 | * MHKV 0x100 in A31, R40, R40e, | |
3262 | * T4x, X31, and later | |
3263 | */ | |
56e2c200 HMH |
3264 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3265 | "firmware HKEY interface version: 0x%x\n", | |
3266 | hkeyv); | |
0d922e3b HMH |
3267 | |
3268 | /* Paranoia check AND init hotkey_all_mask */ | |
3269 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3270 | "MHKA", "qd")) { | |
3271 | printk(TPACPI_ERR | |
3272 | "missing MHKA handler, " | |
3273 | "please report this to %s\n", | |
3274 | TPACPI_MAIL); | |
3275 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3276 | hotkey_all_mask = 0x080cU; | |
3277 | } else { | |
3278 | tp_features.hotkey_mask = 1; | |
3279 | } | |
1b6521dc | 3280 | } |
9c0a76e1 | 3281 | } |
56b6aeb0 | 3282 | |
56e2c200 HMH |
3283 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3284 | "hotkey masks are %s\n", | |
9c0a76e1 | 3285 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3286 | |
0d922e3b HMH |
3287 | /* Init hotkey_all_mask if not initialized yet */ |
3288 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3289 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3290 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3291 | |
0d922e3b | 3292 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3293 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3294 | /* hotkey_source_mask *must* be zero for |
3295 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3296 | res = hotkey_mask_get(); |
3297 | if (res) | |
3298 | goto err_exit; | |
3299 | ||
0d922e3b HMH |
3300 | hotkey_orig_mask = hotkey_acpi_mask; |
3301 | } else { | |
3302 | hotkey_orig_mask = hotkey_all_mask; | |
3303 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3304 | } |
74941a69 | 3305 | |
a73f3091 HMH |
3306 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3307 | if (dbg_wlswemul) { | |
3308 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3309 | radiosw_state = !!tpacpi_wlsw_emulstate; |
a73f3091 HMH |
3310 | printk(TPACPI_INFO |
3311 | "radio switch emulation enabled\n"); | |
3312 | } else | |
3313 | #endif | |
9c0a76e1 HMH |
3314 | /* Not all thinkpads have a hardware radio switch */ |
3315 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3316 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3317 | radiosw_state = !!status; |
9c0a76e1 HMH |
3318 | printk(TPACPI_INFO |
3319 | "radio switch found; radios are %s\n", | |
3320 | enabled(status, 0)); | |
3a872080 HMH |
3321 | } |
3322 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3323 | res = add_to_attr_set(hotkey_dev_attributes, |
3324 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3325 | |
9c0a76e1 HMH |
3326 | /* For X41t, X60t, X61t Tablets... */ |
3327 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3328 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3329 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
9c0a76e1 HMH |
3330 | printk(TPACPI_INFO |
3331 | "possible tablet mode switch found; " | |
3332 | "ThinkPad in %s mode\n", | |
d89a727a | 3333 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3334 | res = add_to_attr_set(hotkey_dev_attributes, |
3335 | &dev_attr_hotkey_tablet_mode.attr); | |
3336 | } | |
6c231bd5 | 3337 | |
9c0a76e1 HMH |
3338 | if (!res) |
3339 | res = register_attr_set_with_sysfs( | |
3340 | hotkey_dev_attributes, | |
3341 | &tpacpi_pdev->dev.kobj); | |
3342 | if (res) | |
3343 | goto err_exit; | |
6a38abbf | 3344 | |
9c0a76e1 | 3345 | /* Set up key map */ |
edf0e0e5 | 3346 | |
9c0a76e1 HMH |
3347 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3348 | GFP_KERNEL); | |
3349 | if (!hotkey_keycode_map) { | |
3350 | printk(TPACPI_ERR | |
3351 | "failed to allocate memory for key map\n"); | |
3352 | res = -ENOMEM; | |
3353 | goto err_exit; | |
3354 | } | |
edf0e0e5 | 3355 | |
9c0a76e1 | 3356 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
56e2c200 | 3357 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3358 | "using Lenovo default hot key map\n"); |
3359 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
3360 | TPACPI_HOTKEY_MAP_SIZE); | |
3361 | } else { | |
56e2c200 | 3362 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3363 | "using IBM default hot key map\n"); |
3364 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
3365 | TPACPI_HOTKEY_MAP_SIZE); | |
3366 | } | |
edf0e0e5 | 3367 | |
792979c8 | 3368 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3369 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3370 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3371 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3372 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3373 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3374 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3375 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3376 | } else { |
3377 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3378 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3379 | } |
9c0a76e1 | 3380 | } |
6a38abbf | 3381 | |
9c0a76e1 | 3382 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3383 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3384 | input_report_switch(tpacpi_inputdev, |
3385 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3386 | } |
3387 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3388 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3389 | input_report_switch(tpacpi_inputdev, |
3390 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3391 | } |
5c29d58f | 3392 | |
9c0a76e1 HMH |
3393 | /* Do not issue duplicate brightness change events to |
3394 | * userspace */ | |
3395 | if (!tp_features.bright_acpimode) | |
3396 | /* update bright_acpimode... */ | |
3397 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 3398 | |
8bf3d4c5 | 3399 | if (tp_features.bright_acpimode && acpi_video_backlight_support()) { |
9c0a76e1 HMH |
3400 | printk(TPACPI_INFO |
3401 | "This ThinkPad has standard ACPI backlight " | |
3402 | "brightness control, supported by the ACPI " | |
3403 | "video driver\n"); | |
3404 | printk(TPACPI_NOTICE | |
3405 | "Disabling thinkpad-acpi brightness events " | |
3406 | "by default...\n"); | |
3407 | ||
de4c8cc7 HMH |
3408 | /* Disable brightness up/down on Lenovo thinkpads when |
3409 | * ACPI is handling them, otherwise it is plain impossible | |
3410 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3411 | hotkey_reserved_mask |= |
3412 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3413 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3414 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3415 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3416 | } |
ff80f137 | 3417 | |
230d8cf2 | 3418 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3419 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3420 | & ~hotkey_all_mask | |
3421 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3422 | |
3423 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3424 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3425 | hotkey_source_mask, hotkey_poll_freq); | |
3426 | #endif | |
3427 | ||
56e2c200 HMH |
3428 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3429 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3430 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3431 | if (res) { |
3432 | hotkey_exit(); | |
3433 | return res; | |
3434 | } | |
0d922e3b HMH |
3435 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3436 | | hotkey_driver_mask) | |
3437 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3438 | if (res < 0 && res != -ENXIO) { |
3439 | hotkey_exit(); | |
3440 | return res; | |
3441 | } | |
0d922e3b HMH |
3442 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3443 | & ~hotkey_reserved_mask; | |
3444 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3445 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3446 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3447 | |
56e2c200 HMH |
3448 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3449 | "legacy ibm/hotkey event reporting over procfs %s\n", | |
9c0a76e1 HMH |
3450 | (hotkey_report_mode < 2) ? |
3451 | "enabled" : "disabled"); | |
01e88f25 | 3452 | |
9c0a76e1 HMH |
3453 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3454 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3455 | |
db25f16d | 3456 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3457 | |
9c0a76e1 | 3458 | return 0; |
01e88f25 | 3459 | |
9c0a76e1 HMH |
3460 | err_exit: |
3461 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3462 | hotkey_dev_attributes = NULL; | |
a0416420 | 3463 | |
9c0a76e1 | 3464 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
3465 | } |
3466 | ||
3827e7a3 HMH |
3467 | static bool hotkey_notify_hotkey(const u32 hkey, |
3468 | bool *send_acpi_ev, | |
3469 | bool *ignore_acpi_ev) | |
3470 | { | |
3471 | /* 0x1000-0x1FFF: key presses */ | |
3472 | unsigned int scancode = hkey & 0xfff; | |
3473 | *send_acpi_ev = true; | |
3474 | *ignore_acpi_ev = false; | |
3475 | ||
3476 | if (scancode > 0 && scancode < 0x21) { | |
3477 | scancode--; | |
3478 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3479 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3480 | *send_acpi_ev = false; |
3481 | } else { | |
3482 | *ignore_acpi_ev = true; | |
3483 | } | |
3484 | return true; | |
3485 | } | |
3486 | return false; | |
3487 | } | |
3488 | ||
3489 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3490 | bool *send_acpi_ev, | |
3491 | bool *ignore_acpi_ev) | |
3492 | { | |
3493 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3494 | *send_acpi_ev = true; | |
3495 | *ignore_acpi_ev = false; | |
3496 | ||
3497 | switch (hkey) { | |
67bcae6e HMH |
3498 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3499 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3500 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3501 | *ignore_acpi_ev = true; | |
3502 | break; | |
3503 | ||
67bcae6e HMH |
3504 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3505 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3506 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3507 | *ignore_acpi_ev = true; | |
3508 | break; | |
3509 | ||
67bcae6e HMH |
3510 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3511 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
106b4e66 HMH |
3512 | printk(TPACPI_ALERT |
3513 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
3514 | /* how to auto-heal: */ | |
3515 | /* 2313: woke up from S3, go to S4/S5 */ | |
3516 | /* 2413: woke up from S4, go to S5 */ | |
3517 | break; | |
3518 | ||
3827e7a3 HMH |
3519 | default: |
3520 | return false; | |
3521 | } | |
3522 | ||
3523 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
3524 | printk(TPACPI_INFO | |
3525 | "woke up due to a hot-unplug " | |
3526 | "request...\n"); | |
3527 | hotkey_wakeup_reason_notify_change(); | |
3528 | } | |
3529 | return true; | |
3530 | } | |
3531 | ||
3532 | static bool hotkey_notify_usrevent(const u32 hkey, | |
3533 | bool *send_acpi_ev, | |
3534 | bool *ignore_acpi_ev) | |
3535 | { | |
3536 | /* 0x5000-0x5FFF: human interface helpers */ | |
3537 | *send_acpi_ev = true; | |
3538 | *ignore_acpi_ev = false; | |
3539 | ||
3540 | switch (hkey) { | |
67bcae6e HMH |
3541 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3542 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3543 | return true; |
3544 | ||
67bcae6e HMH |
3545 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3546 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3547 | tpacpi_input_send_tabletsw(); |
3548 | hotkey_tablet_mode_notify_change(); | |
3549 | *send_acpi_ev = false; | |
3550 | return true; | |
3551 | ||
67bcae6e HMH |
3552 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3553 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3554 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3555 | /* do not propagate these events */ |
3827e7a3 HMH |
3556 | *ignore_acpi_ev = true; |
3557 | return true; | |
3558 | ||
3559 | default: | |
3560 | return false; | |
3561 | } | |
3562 | } | |
3563 | ||
9ebd9e83 HMH |
3564 | static void thermal_dump_all_sensors(void); |
3565 | ||
106b4e66 HMH |
3566 | static bool hotkey_notify_thermal(const u32 hkey, |
3567 | bool *send_acpi_ev, | |
3568 | bool *ignore_acpi_ev) | |
3569 | { | |
9ebd9e83 HMH |
3570 | bool known = true; |
3571 | ||
106b4e66 HMH |
3572 | /* 0x6000-0x6FFF: thermal alarms */ |
3573 | *send_acpi_ev = true; | |
3574 | *ignore_acpi_ev = false; | |
3575 | ||
3576 | switch (hkey) { | |
9ebd9e83 HMH |
3577 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
3578 | printk(TPACPI_INFO | |
3579 | "EC reports that Thermal Table has changed\n"); | |
3580 | /* recommended action: do nothing, we don't have | |
3581 | * Lenovo ATM information */ | |
3582 | return true; | |
67bcae6e | 3583 | case TP_HKEY_EV_ALARM_BAT_HOT: |
106b4e66 HMH |
3584 | printk(TPACPI_CRIT |
3585 | "THERMAL ALARM: battery is too hot!\n"); | |
3586 | /* recommended action: warn user through gui */ | |
9ebd9e83 | 3587 | break; |
67bcae6e | 3588 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
106b4e66 HMH |
3589 | printk(TPACPI_ALERT |
3590 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
3591 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3592 | break; |
67bcae6e | 3593 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
106b4e66 HMH |
3594 | printk(TPACPI_CRIT |
3595 | "THERMAL ALARM: " | |
3596 | "a sensor reports something is too hot!\n"); | |
3597 | /* recommended action: warn user through gui, that */ | |
3598 | /* some internal component is too hot */ | |
9ebd9e83 | 3599 | break; |
67bcae6e | 3600 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
106b4e66 HMH |
3601 | printk(TPACPI_ALERT |
3602 | "THERMAL EMERGENCY: " | |
3603 | "a sensor reports something is extremely hot!\n"); | |
3604 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3605 | break; |
106b4e66 HMH |
3606 | default: |
3607 | printk(TPACPI_ALERT | |
3608 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
9ebd9e83 | 3609 | known = false; |
106b4e66 | 3610 | } |
9ebd9e83 HMH |
3611 | |
3612 | thermal_dump_all_sensors(); | |
3613 | ||
3614 | return known; | |
106b4e66 HMH |
3615 | } |
3616 | ||
56b6aeb0 HMH |
3617 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3618 | { | |
6a38abbf | 3619 | u32 hkey; |
3827e7a3 HMH |
3620 | bool send_acpi_ev; |
3621 | bool ignore_acpi_ev; | |
3622 | bool known_ev; | |
3eea123d HMH |
3623 | |
3624 | if (event != 0x80) { | |
35ff8b9f HMH |
3625 | printk(TPACPI_ERR |
3626 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 3627 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3628 | acpi_bus_generate_netlink_event( |
3629 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3630 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3631 | event, 0); |
3eea123d HMH |
3632 | return; |
3633 | } | |
3634 | ||
3635 | while (1) { | |
3636 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 3637 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
3638 | return; |
3639 | } | |
3640 | ||
3641 | if (hkey == 0) { | |
3642 | /* queue empty */ | |
3643 | return; | |
3644 | } | |
3645 | ||
3827e7a3 HMH |
3646 | send_acpi_ev = true; |
3647 | ignore_acpi_ev = false; | |
56b6aeb0 | 3648 | |
ff80f137 HMH |
3649 | switch (hkey >> 12) { |
3650 | case 1: | |
3651 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3652 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3653 | &ignore_acpi_ev); | |
ff80f137 | 3654 | break; |
a713b4d7 | 3655 | case 2: |
3827e7a3 HMH |
3656 | /* 0x2000-0x2FFF: Wakeup reason */ |
3657 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3658 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3659 | break; |
3660 | case 3: | |
3827e7a3 | 3661 | /* 0x3000-0x3FFF: bay-related wakeups */ |
67bcae6e | 3662 | if (hkey == TP_HKEY_EV_BAYEJ_ACK) { |
a713b4d7 HMH |
3663 | hotkey_autosleep_ack = 1; |
3664 | printk(TPACPI_INFO | |
3665 | "bay ejected\n"); | |
50ebec09 | 3666 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3667 | known_ev = true; |
a713b4d7 | 3668 | } else { |
3827e7a3 | 3669 | known_ev = false; |
a713b4d7 HMH |
3670 | } |
3671 | break; | |
3672 | case 4: | |
3827e7a3 | 3673 | /* 0x4000-0x4FFF: dock-related wakeups */ |
67bcae6e | 3674 | if (hkey == TP_HKEY_EV_UNDOCK_ACK) { |
a713b4d7 HMH |
3675 | hotkey_autosleep_ack = 1; |
3676 | printk(TPACPI_INFO | |
3677 | "undocked\n"); | |
50ebec09 | 3678 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3679 | known_ev = true; |
a713b4d7 | 3680 | } else { |
3827e7a3 | 3681 | known_ev = false; |
a713b4d7 HMH |
3682 | } |
3683 | break; | |
ff80f137 | 3684 | case 5: |
d1edb2b5 | 3685 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3686 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3687 | &ignore_acpi_ev); | |
ff80f137 | 3688 | break; |
106b4e66 HMH |
3689 | case 6: |
3690 | /* 0x6000-0x6FFF: thermal alarms */ | |
3691 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
3692 | &ignore_acpi_ev); | |
3693 | break; | |
ff80f137 HMH |
3694 | case 7: |
3695 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3696 | if (tp_features.hotkey_wlsw && |
3697 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3698 | tpacpi_send_radiosw_update(); |
3b64b51d | 3699 | send_acpi_ev = 0; |
3827e7a3 | 3700 | known_ev = true; |
6a38abbf | 3701 | break; |
6a38abbf | 3702 | } |
ff80f137 HMH |
3703 | /* fallthrough to default */ |
3704 | default: | |
3827e7a3 | 3705 | known_ev = false; |
3b64b51d | 3706 | } |
3827e7a3 | 3707 | if (!known_ev) { |
35ff8b9f HMH |
3708 | printk(TPACPI_NOTICE |
3709 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
3710 | printk(TPACPI_NOTICE |
3711 | "please report the conditions when this " | |
3712 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3713 | } |
ff80f137 | 3714 | |
3eea123d | 3715 | /* Legacy events */ |
35ff8b9f HMH |
3716 | if (!ignore_acpi_ev && |
3717 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
3718 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
3719 | event, hkey); | |
3e5ce914 | 3720 | } |
ff80f137 | 3721 | |
3eea123d | 3722 | /* netlink events */ |
3e5ce914 | 3723 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3724 | acpi_bus_generate_netlink_event( |
3725 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3726 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3727 | event, hkey); |
3eea123d | 3728 | } |
56b6aeb0 HMH |
3729 | } |
3730 | } | |
3731 | ||
a713b4d7 HMH |
3732 | static void hotkey_suspend(pm_message_t state) |
3733 | { | |
3734 | /* Do these on suspend, we get the events on early resume! */ | |
3735 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3736 | hotkey_autosleep_ack = 0; | |
3737 | } | |
3738 | ||
5c29d58f HMH |
3739 | static void hotkey_resume(void) |
3740 | { | |
d64c81c4 HMH |
3741 | tpacpi_disable_brightness_delay(); |
3742 | ||
0d922e3b HMH |
3743 | if (hotkey_status_set(true) < 0 || |
3744 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
35ff8b9f | 3745 | printk(TPACPI_ERR |
0d922e3b HMH |
3746 | "error while attempting to reset the event " |
3747 | "firmware interface\n"); | |
3748 | ||
733e27c1 | 3749 | tpacpi_send_radiosw_update(); |
6c231bd5 | 3750 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
3751 | hotkey_wakeup_reason_notify_change(); |
3752 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 3753 | hotkey_poll_setup_safe(false); |
5c29d58f HMH |
3754 | } |
3755 | ||
a0416420 | 3756 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 3757 | static int hotkey_read(char *p) |
1da177e4 | 3758 | { |
ae92bd17 | 3759 | int res, status; |
1da177e4 LT |
3760 | int len = 0; |
3761 | ||
d8fd94d9 | 3762 | if (!tp_features.hotkey) { |
78f81cc4 BD |
3763 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3764 | return len; | |
3765 | } | |
3766 | ||
7646ea88 | 3767 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3768 | return -ERESTARTSYS; |
b2c985e7 HMH |
3769 | res = hotkey_status_get(&status); |
3770 | if (!res) | |
3771 | res = hotkey_mask_get(); | |
40ca9fdf | 3772 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
3773 | if (res) |
3774 | return res; | |
1da177e4 LT |
3775 | |
3776 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
0d922e3b HMH |
3777 | if (hotkey_all_mask) { |
3778 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask); | |
1da177e4 LT |
3779 | len += sprintf(p + len, |
3780 | "commands:\tenable, disable, reset, <mask>\n"); | |
3781 | } else { | |
3782 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
3783 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
3784 | } | |
3785 | ||
3786 | return len; | |
3787 | } | |
3788 | ||
406e988b | 3789 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
3790 | { |
3791 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b HMH |
3792 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
3793 | TPACPI_WARN | |
3794 | "hotkey enable/disable functionality has been " | |
3795 | "removed from the driver. Hotkeys are always " | |
3796 | "enabled\n")) | |
3797 | printk(TPACPI_ERR | |
3798 | "Please remove the hotkey=enable module " | |
3799 | "parameter, it is deprecated. Hotkeys are always " | |
3800 | "enabled\n"); | |
2586d566 HMH |
3801 | } |
3802 | ||
78f81cc4 | 3803 | static int hotkey_write(char *buf) |
1da177e4 | 3804 | { |
2586d566 | 3805 | int res; |
ae92bd17 | 3806 | u32 mask; |
1da177e4 | 3807 | char *cmd; |
1da177e4 | 3808 | |
d8fd94d9 | 3809 | if (!tp_features.hotkey) |
1da177e4 LT |
3810 | return -ENODEV; |
3811 | ||
7646ea88 | 3812 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3813 | return -ERESTARTSYS; |
40ca9fdf | 3814 | |
0d922e3b | 3815 | mask = hotkey_user_mask; |
78f81cc4 | 3816 | |
40ca9fdf | 3817 | res = 0; |
1da177e4 LT |
3818 | while ((cmd = next_cmd(&buf))) { |
3819 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 3820 | hotkey_enabledisable_warn(1); |
1da177e4 | 3821 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 3822 | hotkey_enabledisable_warn(0); |
2586d566 | 3823 | res = -EPERM; |
1da177e4 | 3824 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
3825 | mask = (hotkey_all_mask | hotkey_source_mask) |
3826 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
3827 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
3828 | /* mask set */ | |
3829 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
3830 | /* mask set */ | |
40ca9fdf HMH |
3831 | } else { |
3832 | res = -EINVAL; | |
3833 | goto errexit; | |
3834 | } | |
1da177e4 | 3835 | } |
56e2c200 | 3836 | |
0d922e3b | 3837 | if (!res) { |
56e2c200 HMH |
3838 | tpacpi_disclose_usertask("procfs hotkey", |
3839 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
3840 | res = hotkey_user_mask_set(mask); |
3841 | } | |
1da177e4 | 3842 | |
40ca9fdf HMH |
3843 | errexit: |
3844 | mutex_unlock(&hotkey_mutex); | |
3845 | return res; | |
78f81cc4 | 3846 | } |
1da177e4 | 3847 | |
1ba90e3a | 3848 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 3849 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
3850 | {"", 0}, |
3851 | }; | |
3852 | ||
8d376cd6 | 3853 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 3854 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
3855 | .notify = hotkey_notify, |
3856 | .handle = &hkey_handle, | |
3857 | .type = ACPI_DEVICE_NOTIFY, | |
3858 | }; | |
3859 | ||
a5763f22 HMH |
3860 | static struct ibm_struct hotkey_driver_data = { |
3861 | .name = "hotkey", | |
a5763f22 HMH |
3862 | .read = hotkey_read, |
3863 | .write = hotkey_write, | |
3864 | .exit = hotkey_exit, | |
5c29d58f | 3865 | .resume = hotkey_resume, |
a713b4d7 | 3866 | .suspend = hotkey_suspend, |
8d376cd6 | 3867 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
3868 | }; |
3869 | ||
56b6aeb0 HMH |
3870 | /************************************************************************* |
3871 | * Bluetooth subdriver | |
3872 | */ | |
1da177e4 | 3873 | |
f74a27d4 HMH |
3874 | enum { |
3875 | /* ACPI GBDC/SBDC bits */ | |
3876 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
3877 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 HMH |
3878 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
3879 | off / last state */ | |
3880 | }; | |
3881 | ||
3882 | enum { | |
3883 | /* ACPI \BLTH commands */ | |
3884 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
3885 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
3886 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
3887 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
3888 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
3889 | }; |
3890 | ||
bee4cd9b HMH |
3891 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
3892 | ||
19d337df | 3893 | static int bluetooth_get_status(void) |
07431ec8 HMH |
3894 | { |
3895 | int status; | |
3896 | ||
a73f3091 HMH |
3897 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3898 | if (dbg_bluetoothemul) | |
3899 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 3900 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
3901 | #endif |
3902 | ||
07431ec8 HMH |
3903 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3904 | return -EIO; | |
3905 | ||
0e74dc26 | 3906 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 3907 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
3908 | } |
3909 | ||
19d337df | 3910 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
3911 | { |
3912 | int status; | |
3913 | ||
bee4cd9b | 3914 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
3915 | "will attempt to %s bluetooth\n", |
3916 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 3917 | |
a73f3091 HMH |
3918 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3919 | if (dbg_bluetoothemul) { | |
19d337df | 3920 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
3921 | return 0; |
3922 | } | |
3923 | #endif | |
3924 | ||
153f8220 | 3925 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
208b996b | 3926 | status = TP_ACPI_BLUETOOTH_RESUMECTRL; |
19d337df | 3927 | if (state == TPACPI_RFK_RADIO_ON) |
208b996b | 3928 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; |
19d337df | 3929 | |
07431ec8 HMH |
3930 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3931 | return -EIO; | |
3932 | ||
3933 | return 0; | |
3934 | } | |
f74a27d4 | 3935 | |
d3a6ade4 HMH |
3936 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3937 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3938 | struct device_attribute *attr, | |
3939 | char *buf) | |
3940 | { | |
19d337df JB |
3941 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
3942 | attr, buf); | |
d3a6ade4 HMH |
3943 | } |
3944 | ||
3945 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3946 | struct device_attribute *attr, | |
3947 | const char *buf, size_t count) | |
3948 | { | |
19d337df JB |
3949 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
3950 | attr, buf, count); | |
d3a6ade4 HMH |
3951 | } |
3952 | ||
3953 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3954 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3955 | bluetooth_enable_show, bluetooth_enable_store); |
3956 | ||
3957 | /* --------------------------------------------------------------------- */ | |
3958 | ||
3959 | static struct attribute *bluetooth_attributes[] = { | |
3960 | &dev_attr_bluetooth_enable.attr, | |
3961 | NULL | |
3962 | }; | |
3963 | ||
3964 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3965 | .attrs = bluetooth_attributes, |
3966 | }; | |
3967 | ||
19d337df JB |
3968 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
3969 | .get_status = bluetooth_get_status, | |
3970 | .set_status = bluetooth_set_status, | |
3971 | }; | |
0e74dc26 | 3972 | |
90d9d3c7 HMH |
3973 | static void bluetooth_shutdown(void) |
3974 | { | |
3975 | /* Order firmware to save current state to NVRAM */ | |
3976 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
3977 | TP_ACPI_BLTH_SAVE_STATE)) | |
3978 | printk(TPACPI_NOTICE | |
3979 | "failed to save bluetooth state to NVRAM\n"); | |
bee4cd9b HMH |
3980 | else |
3981 | vdbg_printk(TPACPI_DBG_RFKILL, | |
3982 | "bluestooth state saved to NVRAM\n"); | |
90d9d3c7 HMH |
3983 | } |
3984 | ||
07431ec8 HMH |
3985 | static void bluetooth_exit(void) |
3986 | { | |
3987 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
3988 | &bluetooth_attr_group); | |
19d337df JB |
3989 | |
3990 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
3991 | ||
3992 | bluetooth_shutdown(); | |
07431ec8 HMH |
3993 | } |
3994 | ||
a5763f22 | 3995 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 3996 | { |
d3a6ade4 | 3997 | int res; |
d6fdd1e9 HMH |
3998 | int status = 0; |
3999 | ||
bee4cd9b HMH |
4000 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4001 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4002 | |
e0c7dfe7 | 4003 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4004 | |
78f81cc4 BD |
4005 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4006 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4007 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4008 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4009 | ||
bee4cd9b HMH |
4010 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4011 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4012 | str_supported(tp_features.bluetooth), |
4013 | status); | |
4014 | ||
a73f3091 HMH |
4015 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4016 | if (dbg_bluetoothemul) { | |
4017 | tp_features.bluetooth = 1; | |
4018 | printk(TPACPI_INFO | |
4019 | "bluetooth switch emulation enabled\n"); | |
4020 | } else | |
4021 | #endif | |
3a872080 HMH |
4022 | if (tp_features.bluetooth && |
4023 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4024 | /* no bluetooth hardware present in system */ | |
4025 | tp_features.bluetooth = 0; | |
bee4cd9b | 4026 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4027 | "bluetooth hardware not installed\n"); |
4028 | } | |
4029 | ||
0e74dc26 HMH |
4030 | if (!tp_features.bluetooth) |
4031 | return 1; | |
4032 | ||
0e74dc26 | 4033 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4034 | &bluetooth_tprfk_ops, |
0e74dc26 | 4035 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4036 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4037 | true); |
4038 | if (res) | |
4039 | return res; | |
4040 | ||
4041 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4042 | &bluetooth_attr_group); | |
0e74dc26 | 4043 | if (res) { |
19d337df | 4044 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4045 | return res; |
d6fdd1e9 | 4046 | } |
fe08bc4b | 4047 | |
0e74dc26 | 4048 | return 0; |
1da177e4 LT |
4049 | } |
4050 | ||
d3a6ade4 | 4051 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 4052 | static int bluetooth_read(char *p) |
1da177e4 | 4053 | { |
19d337df | 4054 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, p); |
1da177e4 LT |
4055 | } |
4056 | ||
78f81cc4 | 4057 | static int bluetooth_write(char *buf) |
1da177e4 | 4058 | { |
19d337df | 4059 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4060 | } |
4061 | ||
a5763f22 HMH |
4062 | static struct ibm_struct bluetooth_driver_data = { |
4063 | .name = "bluetooth", | |
4064 | .read = bluetooth_read, | |
4065 | .write = bluetooth_write, | |
d3a6ade4 | 4066 | .exit = bluetooth_exit, |
90d9d3c7 | 4067 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4068 | }; |
4069 | ||
56b6aeb0 HMH |
4070 | /************************************************************************* |
4071 | * Wan subdriver | |
4072 | */ | |
4073 | ||
f74a27d4 HMH |
4074 | enum { |
4075 | /* ACPI GWAN/SWAN bits */ | |
4076 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4077 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 HMH |
4078 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
4079 | off / last state */ | |
f74a27d4 HMH |
4080 | }; |
4081 | ||
bee4cd9b HMH |
4082 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4083 | ||
19d337df | 4084 | static int wan_get_status(void) |
07431ec8 HMH |
4085 | { |
4086 | int status; | |
4087 | ||
a73f3091 HMH |
4088 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4089 | if (dbg_wwanemul) | |
4090 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4091 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4092 | #endif |
4093 | ||
07431ec8 HMH |
4094 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4095 | return -EIO; | |
4096 | ||
0e74dc26 | 4097 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4098 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4099 | } |
4100 | ||
19d337df | 4101 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4102 | { |
4103 | int status; | |
4104 | ||
bee4cd9b | 4105 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4106 | "will attempt to %s wwan\n", |
4107 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4108 | |
a73f3091 HMH |
4109 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4110 | if (dbg_wwanemul) { | |
19d337df | 4111 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4112 | return 0; |
4113 | } | |
4114 | #endif | |
4115 | ||
208b996b HMH |
4116 | /* We make sure to set TP_ACPI_WANCARD_RESUMECTRL */ |
4117 | status = TP_ACPI_WANCARD_RESUMECTRL; | |
19d337df | 4118 | if (state == TPACPI_RFK_RADIO_ON) |
208b996b | 4119 | status |= TP_ACPI_WANCARD_RADIOSSW; |
19d337df | 4120 | |
07431ec8 HMH |
4121 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4122 | return -EIO; | |
4123 | ||
4124 | return 0; | |
4125 | } | |
f74a27d4 | 4126 | |
d3a6ade4 HMH |
4127 | /* sysfs wan enable ---------------------------------------------------- */ |
4128 | static ssize_t wan_enable_show(struct device *dev, | |
4129 | struct device_attribute *attr, | |
4130 | char *buf) | |
4131 | { | |
19d337df JB |
4132 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4133 | attr, buf); | |
d3a6ade4 HMH |
4134 | } |
4135 | ||
4136 | static ssize_t wan_enable_store(struct device *dev, | |
4137 | struct device_attribute *attr, | |
4138 | const char *buf, size_t count) | |
4139 | { | |
19d337df JB |
4140 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4141 | attr, buf, count); | |
d3a6ade4 HMH |
4142 | } |
4143 | ||
4144 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 4145 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4146 | wan_enable_show, wan_enable_store); |
4147 | ||
4148 | /* --------------------------------------------------------------------- */ | |
4149 | ||
4150 | static struct attribute *wan_attributes[] = { | |
4151 | &dev_attr_wan_enable.attr, | |
4152 | NULL | |
4153 | }; | |
4154 | ||
4155 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4156 | .attrs = wan_attributes, |
4157 | }; | |
4158 | ||
19d337df JB |
4159 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4160 | .get_status = wan_get_status, | |
4161 | .set_status = wan_set_status, | |
4162 | }; | |
0e74dc26 | 4163 | |
90d9d3c7 HMH |
4164 | static void wan_shutdown(void) |
4165 | { | |
4166 | /* Order firmware to save current state to NVRAM */ | |
4167 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4168 | TP_ACPI_WGSV_SAVE_STATE)) | |
4169 | printk(TPACPI_NOTICE | |
4170 | "failed to save WWAN state to NVRAM\n"); | |
bee4cd9b HMH |
4171 | else |
4172 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4173 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4174 | } |
4175 | ||
07431ec8 HMH |
4176 | static void wan_exit(void) |
4177 | { | |
4178 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4179 | &wan_attr_group); | |
19d337df JB |
4180 | |
4181 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4182 | ||
4183 | wan_shutdown(); | |
07431ec8 HMH |
4184 | } |
4185 | ||
a5763f22 | 4186 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4187 | { |
d3a6ade4 | 4188 | int res; |
d6fdd1e9 HMH |
4189 | int status = 0; |
4190 | ||
bee4cd9b HMH |
4191 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4192 | "initializing wan subdriver\n"); | |
fe08bc4b | 4193 | |
e0c7dfe7 | 4194 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4195 | |
d8fd94d9 | 4196 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4197 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4198 | ||
bee4cd9b HMH |
4199 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4200 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4201 | str_supported(tp_features.wan), |
4202 | status); | |
4203 | ||
a73f3091 HMH |
4204 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4205 | if (dbg_wwanemul) { | |
4206 | tp_features.wan = 1; | |
4207 | printk(TPACPI_INFO | |
4208 | "wwan switch emulation enabled\n"); | |
4209 | } else | |
4210 | #endif | |
3a872080 HMH |
4211 | if (tp_features.wan && |
4212 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4213 | /* no wan hardware present in system */ | |
4214 | tp_features.wan = 0; | |
bee4cd9b | 4215 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4216 | "wan hardware not installed\n"); |
4217 | } | |
4218 | ||
0e74dc26 HMH |
4219 | if (!tp_features.wan) |
4220 | return 1; | |
4221 | ||
0e74dc26 | 4222 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4223 | &wan_tprfk_ops, |
0e74dc26 | 4224 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4225 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4226 | true); |
4227 | if (res) | |
4228 | return res; | |
4229 | ||
4230 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4231 | &wan_attr_group); | |
4232 | ||
0e74dc26 | 4233 | if (res) { |
19d337df | 4234 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4235 | return res; |
d6fdd1e9 | 4236 | } |
fe08bc4b | 4237 | |
0e74dc26 | 4238 | return 0; |
42adb53c JF |
4239 | } |
4240 | ||
d3a6ade4 | 4241 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
4242 | static int wan_read(char *p) |
4243 | { | |
19d337df | 4244 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, p); |
42adb53c JF |
4245 | } |
4246 | ||
4247 | static int wan_write(char *buf) | |
4248 | { | |
19d337df | 4249 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4250 | } |
4251 | ||
a5763f22 HMH |
4252 | static struct ibm_struct wan_driver_data = { |
4253 | .name = "wan", | |
4254 | .read = wan_read, | |
4255 | .write = wan_write, | |
d3a6ade4 | 4256 | .exit = wan_exit, |
90d9d3c7 | 4257 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4258 | }; |
4259 | ||
0045c0aa HMH |
4260 | /************************************************************************* |
4261 | * UWB subdriver | |
4262 | */ | |
4263 | ||
4264 | enum { | |
4265 | /* ACPI GUWB/SUWB bits */ | |
4266 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4267 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4268 | }; | |
4269 | ||
bee4cd9b HMH |
4270 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4271 | ||
19d337df | 4272 | static int uwb_get_status(void) |
0045c0aa HMH |
4273 | { |
4274 | int status; | |
4275 | ||
0045c0aa HMH |
4276 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4277 | if (dbg_uwbemul) | |
4278 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4279 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4280 | #endif |
4281 | ||
4282 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4283 | return -EIO; | |
4284 | ||
4285 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4286 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4287 | } |
4288 | ||
19d337df | 4289 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4290 | { |
4291 | int status; | |
4292 | ||
bee4cd9b | 4293 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4294 | "will attempt to %s UWB\n", |
4295 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4296 | |
0045c0aa HMH |
4297 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4298 | if (dbg_uwbemul) { | |
19d337df | 4299 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4300 | return 0; |
4301 | } | |
4302 | #endif | |
4303 | ||
19d337df JB |
4304 | if (state == TPACPI_RFK_RADIO_ON) |
4305 | status = TP_ACPI_UWB_RADIOSSW; | |
4306 | else | |
4307 | status = 0; | |
4308 | ||
0045c0aa HMH |
4309 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4310 | return -EIO; | |
4311 | ||
0045c0aa HMH |
4312 | return 0; |
4313 | } | |
4314 | ||
4315 | /* --------------------------------------------------------------------- */ | |
4316 | ||
19d337df JB |
4317 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4318 | .get_status = uwb_get_status, | |
4319 | .set_status = uwb_set_status, | |
4320 | }; | |
0045c0aa HMH |
4321 | |
4322 | static void uwb_exit(void) | |
4323 | { | |
19d337df | 4324 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4325 | } |
4326 | ||
4327 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4328 | { | |
4329 | int res; | |
4330 | int status = 0; | |
4331 | ||
bee4cd9b HMH |
4332 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4333 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4334 | |
4335 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4336 | ||
4337 | tp_features.uwb = hkey_handle && | |
4338 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4339 | ||
bee4cd9b HMH |
4340 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4341 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4342 | str_supported(tp_features.uwb), |
4343 | status); | |
4344 | ||
4345 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4346 | if (dbg_uwbemul) { | |
4347 | tp_features.uwb = 1; | |
4348 | printk(TPACPI_INFO | |
4349 | "uwb switch emulation enabled\n"); | |
4350 | } else | |
4351 | #endif | |
4352 | if (tp_features.uwb && | |
4353 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4354 | /* no uwb hardware present in system */ | |
4355 | tp_features.uwb = 0; | |
4356 | dbg_printk(TPACPI_DBG_INIT, | |
4357 | "uwb hardware not installed\n"); | |
4358 | } | |
4359 | ||
4360 | if (!tp_features.uwb) | |
4361 | return 1; | |
4362 | ||
4363 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4364 | &uwb_tprfk_ops, |
0045c0aa | 4365 | RFKILL_TYPE_UWB, |
bee4cd9b | 4366 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4367 | false); |
0045c0aa HMH |
4368 | return res; |
4369 | } | |
4370 | ||
4371 | static struct ibm_struct uwb_driver_data = { | |
4372 | .name = "uwb", | |
4373 | .exit = uwb_exit, | |
4374 | .flags.experimental = 1, | |
4375 | }; | |
4376 | ||
56b6aeb0 HMH |
4377 | /************************************************************************* |
4378 | * Video subdriver | |
4379 | */ | |
4380 | ||
d7c1d17d HMH |
4381 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4382 | ||
f74a27d4 HMH |
4383 | enum video_access_mode { |
4384 | TPACPI_VIDEO_NONE = 0, | |
4385 | TPACPI_VIDEO_570, /* 570 */ | |
4386 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4387 | TPACPI_VIDEO_NEW, /* all others */ | |
4388 | }; | |
4389 | ||
4390 | enum { /* video status flags, based on VIDEO_570 */ | |
4391 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4392 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4393 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4394 | }; | |
4395 | ||
4396 | enum { /* TPACPI_VIDEO_570 constants */ | |
4397 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4398 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4399 | * video_status_flags */ | |
4400 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4401 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4402 | }; | |
4403 | ||
9a8e1738 HMH |
4404 | static enum video_access_mode video_supported; |
4405 | static int video_orig_autosw; | |
78f81cc4 | 4406 | |
f74a27d4 HMH |
4407 | static int video_autosw_get(void); |
4408 | static int video_autosw_set(int enable); | |
4409 | ||
e0c7dfe7 | 4410 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4411 | |
a5763f22 | 4412 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4413 | { |
78f81cc4 BD |
4414 | int ivga; |
4415 | ||
fe08bc4b HMH |
4416 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4417 | ||
e0c7dfe7 HMH |
4418 | TPACPI_ACPIHANDLE_INIT(vid); |
4419 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4420 | |
78f81cc4 BD |
4421 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4422 | /* G41, assume IVGA doesn't change */ | |
4423 | vid_handle = vid2_handle; | |
4424 | ||
4425 | if (!vid_handle) | |
4426 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4427 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
4428 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
4429 | /* 570 */ | |
efa27145 | 4430 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
4431 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
4432 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4433 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4434 | else |
4435 | /* all others */ | |
efa27145 | 4436 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4437 | |
fe08bc4b HMH |
4438 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4439 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4440 | video_supported); | |
4441 | ||
5fba344c | 4442 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
4443 | } |
4444 | ||
56b6aeb0 HMH |
4445 | static void video_exit(void) |
4446 | { | |
83f34724 HMH |
4447 | dbg_printk(TPACPI_DBG_EXIT, |
4448 | "restoring original video autoswitch mode\n"); | |
4449 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 4450 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 4451 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4452 | } |
4453 | ||
83f34724 | 4454 | static int video_outputsw_get(void) |
1da177e4 LT |
4455 | { |
4456 | int status = 0; | |
4457 | int i; | |
4458 | ||
83f34724 HMH |
4459 | switch (video_supported) { |
4460 | case TPACPI_VIDEO_570: | |
4461 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4462 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4463 | return -EIO; | |
4464 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4465 | break; | |
4466 | case TPACPI_VIDEO_770: | |
4467 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4468 | return -EIO; | |
4469 | if (i) | |
4470 | status |= TP_ACPI_VIDEO_S_LCD; | |
4471 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4472 | return -EIO; | |
4473 | if (i) | |
4474 | status |= TP_ACPI_VIDEO_S_CRT; | |
4475 | break; | |
4476 | case TPACPI_VIDEO_NEW: | |
4477 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4478 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4479 | return -EIO; | |
4480 | if (i) | |
4481 | status |= TP_ACPI_VIDEO_S_CRT; | |
4482 | ||
4483 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4484 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4485 | return -EIO; | |
4486 | if (i) | |
4487 | status |= TP_ACPI_VIDEO_S_LCD; | |
4488 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4489 | return -EIO; | |
4490 | if (i) | |
4491 | status |= TP_ACPI_VIDEO_S_DVI; | |
4492 | break; | |
4493 | default: | |
4494 | return -ENOSYS; | |
78f81cc4 BD |
4495 | } |
4496 | ||
4497 | return status; | |
4498 | } | |
1da177e4 | 4499 | |
83f34724 | 4500 | static int video_outputsw_set(int status) |
78f81cc4 | 4501 | { |
83f34724 HMH |
4502 | int autosw; |
4503 | int res = 0; | |
4504 | ||
4505 | switch (video_supported) { | |
4506 | case TPACPI_VIDEO_570: | |
4507 | res = acpi_evalf(NULL, NULL, | |
4508 | "\\_SB.PHS2", "vdd", | |
4509 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4510 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4511 | break; | |
4512 | case TPACPI_VIDEO_770: | |
4513 | autosw = video_autosw_get(); | |
4514 | if (autosw < 0) | |
4515 | return autosw; | |
1da177e4 | 4516 | |
83f34724 HMH |
4517 | res = video_autosw_set(1); |
4518 | if (res) | |
4519 | return res; | |
4520 | res = acpi_evalf(vid_handle, NULL, | |
4521 | "ASWT", "vdd", status * 0x100, 0); | |
4522 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4523 | printk(TPACPI_ERR |
4524 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
4525 | return -EIO; |
4526 | } | |
4527 | break; | |
4528 | case TPACPI_VIDEO_NEW: | |
4529 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4530 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4531 | break; |
4532 | default: | |
4533 | return -ENOSYS; | |
4534 | } | |
1da177e4 | 4535 | |
83f34724 | 4536 | return (res)? 0 : -EIO; |
1da177e4 LT |
4537 | } |
4538 | ||
83f34724 | 4539 | static int video_autosw_get(void) |
78f81cc4 | 4540 | { |
83f34724 | 4541 | int autosw = 0; |
78f81cc4 | 4542 | |
83f34724 HMH |
4543 | switch (video_supported) { |
4544 | case TPACPI_VIDEO_570: | |
4545 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4546 | return -EIO; | |
4547 | break; | |
4548 | case TPACPI_VIDEO_770: | |
4549 | case TPACPI_VIDEO_NEW: | |
4550 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4551 | return -EIO; | |
4552 | break; | |
4553 | default: | |
4554 | return -ENOSYS; | |
4555 | } | |
78f81cc4 | 4556 | |
83f34724 | 4557 | return autosw & 1; |
78f81cc4 BD |
4558 | } |
4559 | ||
83f34724 | 4560 | static int video_autosw_set(int enable) |
78f81cc4 | 4561 | { |
83f34724 HMH |
4562 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
4563 | return -EIO; | |
4564 | return 0; | |
78f81cc4 BD |
4565 | } |
4566 | ||
83f34724 | 4567 | static int video_outputsw_cycle(void) |
78f81cc4 | 4568 | { |
83f34724 HMH |
4569 | int autosw = video_autosw_get(); |
4570 | int res; | |
78f81cc4 | 4571 | |
83f34724 HMH |
4572 | if (autosw < 0) |
4573 | return autosw; | |
78f81cc4 | 4574 | |
83f34724 HMH |
4575 | switch (video_supported) { |
4576 | case TPACPI_VIDEO_570: | |
4577 | res = video_autosw_set(1); | |
4578 | if (res) | |
4579 | return res; | |
4580 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4581 | break; | |
4582 | case TPACPI_VIDEO_770: | |
4583 | case TPACPI_VIDEO_NEW: | |
4584 | res = video_autosw_set(1); | |
4585 | if (res) | |
4586 | return res; | |
4587 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4588 | break; | |
4589 | default: | |
4590 | return -ENOSYS; | |
4591 | } | |
4592 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4593 | printk(TPACPI_ERR |
4594 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 4595 | return -EIO; |
78f81cc4 BD |
4596 | } |
4597 | ||
83f34724 HMH |
4598 | return (res)? 0 : -EIO; |
4599 | } | |
4600 | ||
4601 | static int video_expand_toggle(void) | |
4602 | { | |
4603 | switch (video_supported) { | |
4604 | case TPACPI_VIDEO_570: | |
4605 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
4606 | 0 : -EIO; | |
4607 | case TPACPI_VIDEO_770: | |
4608 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
4609 | 0 : -EIO; | |
4610 | case TPACPI_VIDEO_NEW: | |
4611 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
4612 | 0 : -EIO; | |
4613 | default: | |
4614 | return -ENOSYS; | |
4615 | } | |
4616 | /* not reached */ | |
78f81cc4 BD |
4617 | } |
4618 | ||
56b6aeb0 HMH |
4619 | static int video_read(char *p) |
4620 | { | |
83f34724 | 4621 | int status, autosw; |
56b6aeb0 HMH |
4622 | int len = 0; |
4623 | ||
83f34724 | 4624 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
4625 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
4626 | return len; | |
4627 | } | |
4628 | ||
83f34724 HMH |
4629 | status = video_outputsw_get(); |
4630 | if (status < 0) | |
4631 | return status; | |
4632 | ||
4633 | autosw = video_autosw_get(); | |
4634 | if (autosw < 0) | |
4635 | return autosw; | |
4636 | ||
56b6aeb0 HMH |
4637 | len += sprintf(p + len, "status:\t\tsupported\n"); |
4638 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
4639 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4640 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
4641 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
4642 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4643 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
4644 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4645 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
4646 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
4647 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
4648 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
4649 | ||
4650 | return len; | |
4651 | } | |
4652 | ||
78f81cc4 | 4653 | static int video_write(char *buf) |
1da177e4 LT |
4654 | { |
4655 | char *cmd; | |
4656 | int enable, disable, status; | |
83f34724 | 4657 | int res; |
1da177e4 | 4658 | |
83f34724 | 4659 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4660 | return -ENODEV; |
4661 | ||
83f34724 HMH |
4662 | enable = 0; |
4663 | disable = 0; | |
1da177e4 LT |
4664 | |
4665 | while ((cmd = next_cmd(&buf))) { | |
4666 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4667 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4668 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4669 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4670 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4671 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4672 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4673 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4674 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4675 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4676 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4677 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4678 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4679 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4680 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4681 | res = video_autosw_set(1); |
4682 | if (res) | |
4683 | return res; | |
1da177e4 | 4684 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4685 | res = video_autosw_set(0); |
4686 | if (res) | |
4687 | return res; | |
1da177e4 | 4688 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4689 | res = video_outputsw_cycle(); |
4690 | if (res) | |
4691 | return res; | |
1da177e4 | 4692 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4693 | res = video_expand_toggle(); |
4694 | if (res) | |
4695 | return res; | |
1da177e4 LT |
4696 | } else |
4697 | return -EINVAL; | |
4698 | } | |
4699 | ||
4700 | if (enable || disable) { | |
83f34724 HMH |
4701 | status = video_outputsw_get(); |
4702 | if (status < 0) | |
4703 | return status; | |
4704 | res = video_outputsw_set((status & ~disable) | enable); | |
4705 | if (res) | |
4706 | return res; | |
1da177e4 LT |
4707 | } |
4708 | ||
4709 | return 0; | |
4710 | } | |
4711 | ||
a5763f22 HMH |
4712 | static struct ibm_struct video_driver_data = { |
4713 | .name = "video", | |
4714 | .read = video_read, | |
4715 | .write = video_write, | |
4716 | .exit = video_exit, | |
4717 | }; | |
4718 | ||
d7c1d17d HMH |
4719 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4720 | ||
56b6aeb0 HMH |
4721 | /************************************************************************* |
4722 | * Light (thinklight) subdriver | |
4723 | */ | |
1da177e4 | 4724 | |
e0c7dfe7 HMH |
4725 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4726 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4727 | |
4fa6811b HMH |
4728 | static int light_get_status(void) |
4729 | { | |
4730 | int status = 0; | |
4731 | ||
4732 | if (tp_features.light_status) { | |
4733 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4734 | return -EIO; | |
4735 | return (!!status); | |
4736 | } | |
4737 | ||
4738 | return -ENXIO; | |
4739 | } | |
4740 | ||
4741 | static int light_set_status(int status) | |
4742 | { | |
4743 | int rc; | |
4744 | ||
4745 | if (tp_features.light) { | |
4746 | if (cmos_handle) { | |
4747 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4748 | (status)? | |
4749 | TP_CMOS_THINKLIGHT_ON : | |
4750 | TP_CMOS_THINKLIGHT_OFF); | |
4751 | } else { | |
4752 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4753 | (status)? 1 : 0); | |
4754 | } | |
4755 | return (rc)? 0 : -EIO; | |
4756 | } | |
4757 | ||
4758 | return -ENXIO; | |
4759 | } | |
4760 | ||
e306501d HMH |
4761 | static void light_set_status_worker(struct work_struct *work) |
4762 | { | |
4763 | struct tpacpi_led_classdev *data = | |
4764 | container_of(work, struct tpacpi_led_classdev, work); | |
4765 | ||
4766 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 4767 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
4768 | } |
4769 | ||
4770 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4771 | enum led_brightness brightness) | |
4772 | { | |
4773 | struct tpacpi_led_classdev *data = | |
4774 | container_of(led_cdev, | |
4775 | struct tpacpi_led_classdev, | |
4776 | led_classdev); | |
75bd3bf2 HMH |
4777 | data->new_state = (brightness != LED_OFF) ? |
4778 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 4779 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4780 | } |
4781 | ||
4782 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4783 | { | |
4784 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4785 | } | |
4786 | ||
4787 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4788 | .led_classdev = { | |
4789 | .name = "tpacpi::thinklight", | |
4790 | .brightness_set = &light_sysfs_set, | |
4791 | .brightness_get = &light_sysfs_get, | |
4792 | } | |
4793 | }; | |
4794 | ||
a5763f22 | 4795 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4796 | { |
9c0a76e1 | 4797 | int rc; |
e306501d | 4798 | |
fe08bc4b HMH |
4799 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4800 | ||
e0c7dfe7 HMH |
4801 | TPACPI_ACPIHANDLE_INIT(ledb); |
4802 | TPACPI_ACPIHANDLE_INIT(lght); | |
4803 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 4804 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4805 | |
78f81cc4 | 4806 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4807 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4808 | |
d8fd94d9 | 4809 | if (tp_features.light) |
78f81cc4 BD |
4810 | /* light status not supported on |
4811 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4812 | tp_features.light_status = |
4813 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4814 | |
9c0a76e1 HMH |
4815 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4816 | str_supported(tp_features.light), | |
4817 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4818 | |
9c0a76e1 HMH |
4819 | if (!tp_features.light) |
4820 | return 1; | |
4821 | ||
4822 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4823 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4824 | |
4825 | if (rc < 0) { | |
4826 | tp_features.light = 0; | |
4827 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4828 | } else { |
4829 | rc = 0; | |
e306501d | 4830 | } |
9c0a76e1 | 4831 | |
e306501d HMH |
4832 | return rc; |
4833 | } | |
4834 | ||
4835 | static void light_exit(void) | |
4836 | { | |
4837 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4838 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4839 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4840 | } |
4841 | ||
78f81cc4 | 4842 | static int light_read(char *p) |
1da177e4 LT |
4843 | { |
4844 | int len = 0; | |
4fa6811b | 4845 | int status; |
1da177e4 | 4846 | |
d8fd94d9 | 4847 | if (!tp_features.light) { |
78f81cc4 | 4848 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 4849 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
4850 | len += sprintf(p + len, "status:\t\tunknown\n"); |
4851 | len += sprintf(p + len, "commands:\ton, off\n"); | |
4852 | } else { | |
4fa6811b HMH |
4853 | status = light_get_status(); |
4854 | if (status < 0) | |
4855 | return status; | |
1da177e4 | 4856 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
4857 | len += sprintf(p + len, "commands:\ton, off\n"); |
4858 | } | |
1da177e4 LT |
4859 | |
4860 | return len; | |
4861 | } | |
4862 | ||
78f81cc4 | 4863 | static int light_write(char *buf) |
1da177e4 | 4864 | { |
1da177e4 | 4865 | char *cmd; |
4fa6811b | 4866 | int newstatus = 0; |
78f81cc4 | 4867 | |
d8fd94d9 | 4868 | if (!tp_features.light) |
78f81cc4 BD |
4869 | return -ENODEV; |
4870 | ||
1da177e4 LT |
4871 | while ((cmd = next_cmd(&buf))) { |
4872 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4873 | newstatus = 1; |
1da177e4 | 4874 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4875 | newstatus = 0; |
1da177e4 LT |
4876 | } else |
4877 | return -EINVAL; | |
1da177e4 LT |
4878 | } |
4879 | ||
4fa6811b | 4880 | return light_set_status(newstatus); |
1da177e4 LT |
4881 | } |
4882 | ||
a5763f22 HMH |
4883 | static struct ibm_struct light_driver_data = { |
4884 | .name = "light", | |
4885 | .read = light_read, | |
4886 | .write = light_write, | |
e306501d | 4887 | .exit = light_exit, |
a5763f22 HMH |
4888 | }; |
4889 | ||
56b6aeb0 HMH |
4890 | /************************************************************************* |
4891 | * CMOS subdriver | |
4892 | */ | |
4893 | ||
b616004c HMH |
4894 | /* sysfs cmos_command -------------------------------------------------- */ |
4895 | static ssize_t cmos_command_store(struct device *dev, | |
4896 | struct device_attribute *attr, | |
4897 | const char *buf, size_t count) | |
4898 | { | |
4899 | unsigned long cmos_cmd; | |
4900 | int res; | |
4901 | ||
4902 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4903 | return -EINVAL; | |
4904 | ||
4905 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4906 | return (res)? res : count; | |
4907 | } | |
4908 | ||
4909 | static struct device_attribute dev_attr_cmos_command = | |
4910 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4911 | ||
4912 | /* --------------------------------------------------------------------- */ | |
4913 | ||
a5763f22 | 4914 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4915 | { |
b616004c HMH |
4916 | int res; |
4917 | ||
fe08bc4b HMH |
4918 | vdbg_printk(TPACPI_DBG_INIT, |
4919 | "initializing cmos commands subdriver\n"); | |
4920 | ||
e0c7dfe7 | 4921 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4922 | |
fe08bc4b HMH |
4923 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4924 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4925 | |
4926 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4927 | if (res) | |
4928 | return res; | |
4929 | ||
5fba344c HMH |
4930 | return (cmos_handle)? 0 : 1; |
4931 | } | |
4932 | ||
b616004c HMH |
4933 | static void cmos_exit(void) |
4934 | { | |
4935 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4936 | } | |
4937 | ||
78f81cc4 | 4938 | static int cmos_read(char *p) |
1da177e4 LT |
4939 | { |
4940 | int len = 0; | |
4941 | ||
78f81cc4 BD |
4942 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4943 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
4944 | if (!cmos_handle) |
4945 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4946 | else { | |
4947 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 4948 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
4949 | } |
4950 | ||
4951 | return len; | |
4952 | } | |
4953 | ||
78f81cc4 | 4954 | static int cmos_write(char *buf) |
1da177e4 LT |
4955 | { |
4956 | char *cmd; | |
c9bea99c | 4957 | int cmos_cmd, res; |
1da177e4 LT |
4958 | |
4959 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4960 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4961 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4962 | /* cmos_cmd set */ |
4963 | } else | |
4964 | return -EINVAL; | |
4965 | ||
c9bea99c HMH |
4966 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4967 | if (res) | |
4968 | return res; | |
1da177e4 LT |
4969 | } |
4970 | ||
4971 | return 0; | |
78f81cc4 BD |
4972 | } |
4973 | ||
a5763f22 HMH |
4974 | static struct ibm_struct cmos_driver_data = { |
4975 | .name = "cmos", | |
4976 | .read = cmos_read, | |
4977 | .write = cmos_write, | |
b616004c | 4978 | .exit = cmos_exit, |
a5763f22 | 4979 | }; |
56b6aeb0 HMH |
4980 | |
4981 | /************************************************************************* | |
4982 | * LED subdriver | |
4983 | */ | |
4984 | ||
f74a27d4 HMH |
4985 | enum led_access_mode { |
4986 | TPACPI_LED_NONE = 0, | |
4987 | TPACPI_LED_570, /* 570 */ | |
4988 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4989 | TPACPI_LED_NEW, /* all others */ | |
4990 | }; | |
4991 | ||
4992 | enum { /* For TPACPI_LED_OLD */ | |
4993 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
4994 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
4995 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
4996 | }; | |
4997 | ||
9a8e1738 | 4998 | static enum led_access_mode led_supported; |
78f81cc4 | 4999 | |
e0c7dfe7 | 5000 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
5001 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
5002 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
5003 | "LED", /* all others */ |
5004 | ); /* R30, R31 */ | |
5005 | ||
f21179a4 | 5006 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5007 | static struct tpacpi_led_classdev *tpacpi_leds; |
5008 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5009 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5010 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5011 | "tpacpi::power", | |
5012 | "tpacpi:orange:batt", | |
5013 | "tpacpi:green:batt", | |
5014 | "tpacpi::dock_active", | |
5015 | "tpacpi::bay_active", | |
5016 | "tpacpi::dock_batt", | |
5017 | "tpacpi::unknown_led", | |
5018 | "tpacpi::standby", | |
f21179a4 HMH |
5019 | "tpacpi::dock_status1", |
5020 | "tpacpi::dock_status2", | |
5021 | "tpacpi::unknown_led2", | |
5022 | "tpacpi::unknown_led3", | |
5023 | "tpacpi::thinkvantage", | |
af116101 | 5024 | }; |
f21179a4 | 5025 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5026 | |
5027 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5028 | { | |
5029 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5030 | return false; | |
5031 | #else | |
f21179a4 | 5032 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5033 | #endif |
5034 | } | |
af116101 | 5035 | |
24e45bbe | 5036 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5037 | { |
5038 | int status; | |
af116101 | 5039 | enum led_status_t led_s; |
4fa6811b HMH |
5040 | |
5041 | switch (led_supported) { | |
5042 | case TPACPI_LED_570: | |
5043 | if (!acpi_evalf(ec_handle, | |
5044 | &status, "GLED", "dd", 1 << led)) | |
5045 | return -EIO; | |
af116101 | 5046 | led_s = (status == 0)? |
4fa6811b HMH |
5047 | TPACPI_LED_OFF : |
5048 | ((status == 1)? | |
5049 | TPACPI_LED_ON : | |
5050 | TPACPI_LED_BLINK); | |
af116101 HMH |
5051 | tpacpi_led_state_cache[led] = led_s; |
5052 | return led_s; | |
4fa6811b HMH |
5053 | default: |
5054 | return -ENXIO; | |
5055 | } | |
5056 | ||
5057 | /* not reached */ | |
5058 | } | |
5059 | ||
24e45bbe HMH |
5060 | static int led_set_status(const unsigned int led, |
5061 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5062 | { |
5063 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5064 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5065 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5066 | |
5067 | int rc = 0; | |
5068 | ||
5069 | switch (led_supported) { | |
5070 | case TPACPI_LED_570: | |
24e45bbe | 5071 | /* 570 */ |
a4d5effc | 5072 | if (unlikely(led > 7)) |
24e45bbe | 5073 | return -EINVAL; |
a4d5effc HMH |
5074 | if (unlikely(tpacpi_is_led_restricted(led))) |
5075 | return -EPERM; | |
24e45bbe HMH |
5076 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5077 | (1 << led), led_sled_arg1[ledstatus])) | |
5078 | rc = -EIO; | |
5079 | break; | |
4fa6811b | 5080 | case TPACPI_LED_OLD: |
24e45bbe | 5081 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5082 | if (unlikely(led > 7)) |
24e45bbe | 5083 | return -EINVAL; |
a4d5effc HMH |
5084 | if (unlikely(tpacpi_is_led_restricted(led))) |
5085 | return -EPERM; | |
24e45bbe HMH |
5086 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5087 | if (rc >= 0) | |
5088 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5089 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5090 | if (rc >= 0) | |
5091 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5092 | (ledstatus != TPACPI_LED_OFF) << led); | |
5093 | break; | |
4fa6811b | 5094 | case TPACPI_LED_NEW: |
24e45bbe | 5095 | /* all others */ |
a4d5effc HMH |
5096 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5097 | return -EINVAL; | |
5098 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5099 | return -EPERM; | |
24e45bbe HMH |
5100 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5101 | led, led_led_arg1[ledstatus])) | |
5102 | rc = -EIO; | |
5103 | break; | |
4fa6811b HMH |
5104 | default: |
5105 | rc = -ENXIO; | |
5106 | } | |
5107 | ||
af116101 HMH |
5108 | if (!rc) |
5109 | tpacpi_led_state_cache[led] = ledstatus; | |
5110 | ||
5111 | return rc; | |
5112 | } | |
5113 | ||
af116101 HMH |
5114 | static void led_set_status_worker(struct work_struct *work) |
5115 | { | |
5116 | struct tpacpi_led_classdev *data = | |
5117 | container_of(work, struct tpacpi_led_classdev, work); | |
5118 | ||
5119 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5120 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5121 | } |
5122 | ||
5123 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5124 | enum led_brightness brightness) | |
5125 | { | |
5126 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5127 | struct tpacpi_led_classdev, led_classdev); | |
5128 | ||
75bd3bf2 HMH |
5129 | if (brightness == LED_OFF) |
5130 | data->new_state = TPACPI_LED_OFF; | |
5131 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5132 | data->new_state = TPACPI_LED_ON; | |
5133 | else | |
5134 | data->new_state = TPACPI_LED_BLINK; | |
5135 | ||
e0e3c061 | 5136 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5137 | } |
5138 | ||
5139 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5140 | unsigned long *delay_on, unsigned long *delay_off) | |
5141 | { | |
5142 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5143 | struct tpacpi_led_classdev, led_classdev); | |
5144 | ||
5145 | /* Can we choose the flash rate? */ | |
5146 | if (*delay_on == 0 && *delay_off == 0) { | |
5147 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5148 | *delay_on = 500; /* ms */ | |
5149 | *delay_off = 500; /* ms */ | |
5150 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5151 | return -EINVAL; | |
5152 | ||
75bd3bf2 | 5153 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5154 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5155 | |
5156 | return 0; | |
5157 | } | |
5158 | ||
5159 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5160 | { | |
5161 | int rc; | |
5162 | ||
5163 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5164 | struct tpacpi_led_classdev, led_classdev); | |
5165 | ||
5166 | rc = led_get_status(data->led); | |
5167 | ||
5168 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5169 | rc = LED_OFF; /* no error handling in led class :( */ | |
5170 | else | |
5171 | rc = LED_FULL; | |
5172 | ||
4fa6811b HMH |
5173 | return rc; |
5174 | } | |
5175 | ||
af116101 HMH |
5176 | static void led_exit(void) |
5177 | { | |
5178 | unsigned int i; | |
5179 | ||
5180 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5181 | if (tpacpi_leds[i].led_classdev.name) | |
5182 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5183 | } | |
5184 | ||
5185 | kfree(tpacpi_leds); | |
af116101 HMH |
5186 | } |
5187 | ||
a4d5effc HMH |
5188 | static int __init tpacpi_init_led(unsigned int led) |
5189 | { | |
5190 | int rc; | |
5191 | ||
5192 | tpacpi_leds[led].led = led; | |
5193 | ||
f21179a4 HMH |
5194 | /* LEDs with no name don't get registered */ |
5195 | if (!tpacpi_led_names[led]) | |
5196 | return 0; | |
5197 | ||
a4d5effc HMH |
5198 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5199 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5200 | if (led_supported == TPACPI_LED_570) | |
5201 | tpacpi_leds[led].led_classdev.brightness_get = | |
5202 | &led_sysfs_get; | |
5203 | ||
5204 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5205 | ||
5206 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5207 | ||
5208 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5209 | &tpacpi_leds[led].led_classdev); | |
5210 | if (rc < 0) | |
5211 | tpacpi_leds[led].led_classdev.name = NULL; | |
5212 | ||
5213 | return rc; | |
5214 | } | |
5215 | ||
f21179a4 HMH |
5216 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5217 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5218 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5219 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5220 | ||
5221 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5222 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5223 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5224 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5225 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5226 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5227 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5228 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5229 | ||
5230 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5231 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5232 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5233 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5234 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5235 | ||
5236 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5237 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5238 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5239 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5240 | ||
5241 | /* (1) - may have excess leds enabled on MSB */ | |
5242 | ||
5243 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5244 | { /* Lenovo */ | |
5245 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5246 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5247 | .quirks = 0x1fffU, | |
5248 | }, | |
5249 | { /* IBM ThinkPads with no EC version string */ | |
5250 | .vendor = PCI_VENDOR_ID_IBM, | |
5251 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5252 | .quirks = 0x00ffU, | |
5253 | }, | |
5254 | { /* IBM ThinkPads with EC version string */ | |
5255 | .vendor = PCI_VENDOR_ID_IBM, | |
5256 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5257 | .quirks = 0x00bfU, | |
5258 | }, | |
5259 | }; | |
5260 | ||
5261 | #undef TPACPI_LEDQ_IBM | |
5262 | #undef TPACPI_LEDQ_LNV | |
5263 | ||
a5763f22 | 5264 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5265 | { |
af116101 HMH |
5266 | unsigned int i; |
5267 | int rc; | |
f21179a4 | 5268 | unsigned long useful_leds; |
af116101 | 5269 | |
fe08bc4b HMH |
5270 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5271 | ||
e0c7dfe7 | 5272 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 5273 | |
78f81cc4 BD |
5274 | if (!led_handle) |
5275 | /* led not supported on R30, R31 */ | |
efa27145 | 5276 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
5277 | else if (strlencmp(led_path, "SLED") == 0) |
5278 | /* 570 */ | |
efa27145 | 5279 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
5280 | else if (strlencmp(led_path, "SYSL") == 0) |
5281 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 5282 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
5283 | else |
5284 | /* all others */ | |
efa27145 | 5285 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 5286 | |
fe08bc4b HMH |
5287 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5288 | str_supported(led_supported), led_supported); | |
5289 | ||
f21179a4 HMH |
5290 | if (led_supported == TPACPI_LED_NONE) |
5291 | return 1; | |
5292 | ||
af116101 HMH |
5293 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5294 | GFP_KERNEL); | |
5295 | if (!tpacpi_leds) { | |
5296 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
5297 | return -ENOMEM; | |
5298 | } | |
5299 | ||
f21179a4 HMH |
5300 | useful_leds = tpacpi_check_quirks(led_useful_qtable, |
5301 | ARRAY_SIZE(led_useful_qtable)); | |
5302 | ||
af116101 | 5303 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
f21179a4 HMH |
5304 | if (!tpacpi_is_led_restricted(i) && |
5305 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5306 | rc = tpacpi_init_led(i); |
5307 | if (rc < 0) { | |
5308 | led_exit(); | |
5309 | return rc; | |
5310 | } | |
af116101 HMH |
5311 | } |
5312 | } | |
5313 | ||
a4d5effc | 5314 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
f21179a4 HMH |
5315 | printk(TPACPI_NOTICE |
5316 | "warning: userspace override of important " | |
5317 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5318 | #endif |
f21179a4 | 5319 | return 0; |
78f81cc4 BD |
5320 | } |
5321 | ||
4fa6811b HMH |
5322 | #define str_led_status(s) \ |
5323 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5324 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
5325 | |
5326 | static int led_read(char *p) | |
1da177e4 LT |
5327 | { |
5328 | int len = 0; | |
5329 | ||
78f81cc4 BD |
5330 | if (!led_supported) { |
5331 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5332 | return len; | |
5333 | } | |
5334 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
5335 | ||
efa27145 | 5336 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5337 | /* 570 */ |
5338 | int i, status; | |
5339 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5340 | status = led_get_status(i); |
5341 | if (status < 0) | |
78f81cc4 BD |
5342 | return -EIO; |
5343 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 5344 | i, str_led_status(status)); |
78f81cc4 BD |
5345 | } |
5346 | } | |
5347 | ||
1da177e4 | 5348 | len += sprintf(p + len, "commands:\t" |
f21179a4 | 5349 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 LT |
5350 | |
5351 | return len; | |
5352 | } | |
5353 | ||
78f81cc4 | 5354 | static int led_write(char *buf) |
1da177e4 LT |
5355 | { |
5356 | char *cmd; | |
4fa6811b HMH |
5357 | int led, rc; |
5358 | enum led_status_t s; | |
78f81cc4 BD |
5359 | |
5360 | if (!led_supported) | |
5361 | return -ENODEV; | |
1da177e4 LT |
5362 | |
5363 | while ((cmd = next_cmd(&buf))) { | |
f21179a4 | 5364 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 15) |
1da177e4 LT |
5365 | return -EINVAL; |
5366 | ||
78f81cc4 | 5367 | if (strstr(cmd, "off")) { |
4fa6811b | 5368 | s = TPACPI_LED_OFF; |
1da177e4 | 5369 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5370 | s = TPACPI_LED_ON; |
78f81cc4 | 5371 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5372 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5373 | } else { |
4fa6811b | 5374 | return -EINVAL; |
78f81cc4 | 5375 | } |
4fa6811b HMH |
5376 | |
5377 | rc = led_set_status(led, s); | |
5378 | if (rc < 0) | |
5379 | return rc; | |
78f81cc4 BD |
5380 | } |
5381 | ||
5382 | return 0; | |
5383 | } | |
5384 | ||
a5763f22 HMH |
5385 | static struct ibm_struct led_driver_data = { |
5386 | .name = "led", | |
5387 | .read = led_read, | |
5388 | .write = led_write, | |
af116101 | 5389 | .exit = led_exit, |
a5763f22 HMH |
5390 | }; |
5391 | ||
56b6aeb0 HMH |
5392 | /************************************************************************* |
5393 | * Beep subdriver | |
5394 | */ | |
5395 | ||
e0c7dfe7 | 5396 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5397 | |
60201732 HMH |
5398 | #define TPACPI_BEEP_Q1 0x0001 |
5399 | ||
5400 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5401 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5402 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5403 | }; | |
5404 | ||
a5763f22 | 5405 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5406 | { |
60201732 HMH |
5407 | unsigned long quirks; |
5408 | ||
fe08bc4b HMH |
5409 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5410 | ||
e0c7dfe7 | 5411 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5412 | |
fe08bc4b HMH |
5413 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5414 | str_supported(beep_handle != NULL)); | |
5415 | ||
60201732 HMH |
5416 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5417 | ARRAY_SIZE(beep_quirk_table)); | |
5418 | ||
5419 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5420 | ||
5fba344c HMH |
5421 | return (beep_handle)? 0 : 1; |
5422 | } | |
5423 | ||
78f81cc4 BD |
5424 | static int beep_read(char *p) |
5425 | { | |
5426 | int len = 0; | |
5427 | ||
5428 | if (!beep_handle) | |
5429 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5430 | else { | |
5431 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
5432 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
5433 | } | |
5434 | ||
5435 | return len; | |
5436 | } | |
5437 | ||
5438 | static int beep_write(char *buf) | |
5439 | { | |
5440 | char *cmd; | |
5441 | int beep_cmd; | |
5442 | ||
5443 | if (!beep_handle) | |
5444 | return -ENODEV; | |
5445 | ||
5446 | while ((cmd = next_cmd(&buf))) { | |
5447 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5448 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5449 | /* beep_cmd set */ | |
5450 | } else | |
5451 | return -EINVAL; | |
60201732 HMH |
5452 | if (tp_features.beep_needs_two_args) { |
5453 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5454 | beep_cmd, 0)) | |
5455 | return -EIO; | |
5456 | } else { | |
5457 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5458 | beep_cmd)) | |
5459 | return -EIO; | |
5460 | } | |
78f81cc4 BD |
5461 | } |
5462 | ||
5463 | return 0; | |
5464 | } | |
5465 | ||
a5763f22 HMH |
5466 | static struct ibm_struct beep_driver_data = { |
5467 | .name = "beep", | |
5468 | .read = beep_read, | |
5469 | .write = beep_write, | |
5470 | }; | |
5471 | ||
56b6aeb0 HMH |
5472 | /************************************************************************* |
5473 | * Thermal subdriver | |
5474 | */ | |
78f81cc4 | 5475 | |
f74a27d4 HMH |
5476 | enum thermal_access_mode { |
5477 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5478 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5479 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5480 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5481 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5482 | }; | |
5483 | ||
5484 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5485 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5486 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5487 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5488 | |
5489 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5490 | }; |
5491 | ||
9ebd9e83 | 5492 | |
f74a27d4 HMH |
5493 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5494 | struct ibm_thermal_sensors_struct { | |
5495 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5496 | }; | |
5497 | ||
a26f878a | 5498 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5499 | |
b21a15f6 HMH |
5500 | /* idx is zero-based */ |
5501 | static int thermal_get_sensor(int idx, s32 *value) | |
5502 | { | |
5503 | int t; | |
5504 | s8 tmp; | |
5505 | char tmpi[5]; | |
5506 | ||
5507 | t = TP_EC_THERMAL_TMP0; | |
5508 | ||
5509 | switch (thermal_read_mode) { | |
5510 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5511 | case TPACPI_THERMAL_TPEC_16: | |
5512 | if (idx >= 8 && idx <= 15) { | |
5513 | t = TP_EC_THERMAL_TMP8; | |
5514 | idx -= 8; | |
5515 | } | |
5516 | /* fallthrough */ | |
5517 | #endif | |
5518 | case TPACPI_THERMAL_TPEC_8: | |
5519 | if (idx <= 7) { | |
5520 | if (!acpi_ec_read(t + idx, &tmp)) | |
5521 | return -EIO; | |
5522 | *value = tmp * 1000; | |
5523 | return 0; | |
5524 | } | |
5525 | break; | |
5526 | ||
5527 | case TPACPI_THERMAL_ACPI_UPDT: | |
5528 | if (idx <= 7) { | |
5529 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5530 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5531 | return -EIO; | |
5532 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5533 | return -EIO; | |
5534 | *value = (t - 2732) * 100; | |
5535 | return 0; | |
5536 | } | |
5537 | break; | |
5538 | ||
5539 | case TPACPI_THERMAL_ACPI_TMP07: | |
5540 | if (idx <= 7) { | |
5541 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5542 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5543 | return -EIO; | |
5544 | if (t > 127 || t < -127) | |
5545 | t = TP_EC_THERMAL_TMP_NA; | |
5546 | *value = t * 1000; | |
5547 | return 0; | |
5548 | } | |
5549 | break; | |
5550 | ||
5551 | case TPACPI_THERMAL_NONE: | |
5552 | default: | |
5553 | return -ENOSYS; | |
5554 | } | |
5555 | ||
5556 | return -EINVAL; | |
5557 | } | |
5558 | ||
5559 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5560 | { | |
5561 | int res, i; | |
5562 | int n; | |
5563 | ||
5564 | n = 8; | |
5565 | i = 0; | |
5566 | ||
5567 | if (!s) | |
5568 | return -EINVAL; | |
5569 | ||
5570 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5571 | n = 16; | |
5572 | ||
35ff8b9f | 5573 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5574 | res = thermal_get_sensor(i, &s->temp[i]); |
5575 | if (res) | |
5576 | return res; | |
5577 | } | |
5578 | ||
5579 | return n; | |
5580 | } | |
f74a27d4 | 5581 | |
9ebd9e83 HMH |
5582 | static void thermal_dump_all_sensors(void) |
5583 | { | |
5584 | int n, i; | |
5585 | struct ibm_thermal_sensors_struct t; | |
5586 | ||
5587 | n = thermal_get_sensors(&t); | |
5588 | if (n <= 0) | |
5589 | return; | |
5590 | ||
5591 | printk(TPACPI_NOTICE | |
5592 | "temperatures (Celsius):"); | |
5593 | ||
5594 | for (i = 0; i < n; i++) { | |
5595 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
5596 | printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); | |
5597 | else | |
5598 | printk(KERN_CONT " N/A"); | |
5599 | } | |
5600 | ||
5601 | printk(KERN_CONT "\n"); | |
5602 | } | |
5603 | ||
2c37aa4e HMH |
5604 | /* sysfs temp##_input -------------------------------------------------- */ |
5605 | ||
5606 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5607 | struct device_attribute *attr, | |
5608 | char *buf) | |
5609 | { | |
5610 | struct sensor_device_attribute *sensor_attr = | |
5611 | to_sensor_dev_attr(attr); | |
5612 | int idx = sensor_attr->index; | |
5613 | s32 value; | |
5614 | int res; | |
5615 | ||
5616 | res = thermal_get_sensor(idx, &value); | |
5617 | if (res) | |
5618 | return res; | |
9ebd9e83 | 5619 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5620 | return -ENXIO; |
5621 | ||
5622 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5623 | } | |
5624 | ||
5625 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5626 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5627 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5628 | |
5629 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5630 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5631 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5632 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5633 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5634 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5635 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5636 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5637 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5638 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5639 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5640 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5641 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5642 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5643 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5644 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5645 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5646 | }; | |
5647 | ||
5648 | #define THERMAL_ATTRS(X) \ | |
5649 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5650 | ||
5651 | static struct attribute *thermal_temp_input_attr[] = { | |
5652 | THERMAL_ATTRS(8), | |
5653 | THERMAL_ATTRS(9), | |
5654 | THERMAL_ATTRS(10), | |
5655 | THERMAL_ATTRS(11), | |
5656 | THERMAL_ATTRS(12), | |
5657 | THERMAL_ATTRS(13), | |
5658 | THERMAL_ATTRS(14), | |
5659 | THERMAL_ATTRS(15), | |
5660 | THERMAL_ATTRS(0), | |
5661 | THERMAL_ATTRS(1), | |
5662 | THERMAL_ATTRS(2), | |
5663 | THERMAL_ATTRS(3), | |
5664 | THERMAL_ATTRS(4), | |
5665 | THERMAL_ATTRS(5), | |
5666 | THERMAL_ATTRS(6), | |
5667 | THERMAL_ATTRS(7), | |
5668 | NULL | |
5669 | }; | |
5670 | ||
5671 | static const struct attribute_group thermal_temp_input16_group = { | |
5672 | .attrs = thermal_temp_input_attr | |
5673 | }; | |
5674 | ||
5675 | static const struct attribute_group thermal_temp_input8_group = { | |
5676 | .attrs = &thermal_temp_input_attr[8] | |
5677 | }; | |
5678 | ||
5679 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5680 | #undef THERMAL_ATTRS | |
5681 | ||
5682 | /* --------------------------------------------------------------------- */ | |
5683 | ||
a5763f22 | 5684 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5685 | { |
60eb0b35 HMH |
5686 | u8 t, ta1, ta2; |
5687 | int i; | |
5fba344c | 5688 | int acpi_tmp7; |
2c37aa4e | 5689 | int res; |
5fba344c | 5690 | |
fe08bc4b HMH |
5691 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5692 | ||
5fba344c | 5693 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5694 | |
3d6f99ca | 5695 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5696 | /* |
5697 | * Direct EC access mode: sensors at registers | |
5698 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5699 | * non-implemented, thermal sensors return 0x80 when | |
5700 | * not available | |
5701 | */ | |
78f81cc4 | 5702 | |
60eb0b35 HMH |
5703 | ta1 = ta2 = 0; |
5704 | for (i = 0; i < 8; i++) { | |
04cc862c | 5705 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5706 | ta1 |= t; |
5707 | } else { | |
5708 | ta1 = 0; | |
5709 | break; | |
5710 | } | |
04cc862c | 5711 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5712 | ta2 |= t; |
5713 | } else { | |
5714 | ta1 = 0; | |
5715 | break; | |
5716 | } | |
5717 | } | |
5718 | if (ta1 == 0) { | |
5719 | /* This is sheer paranoia, but we handle it anyway */ | |
5720 | if (acpi_tmp7) { | |
e0c7dfe7 | 5721 | printk(TPACPI_ERR |
60eb0b35 | 5722 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5723 | "falling back to ACPI TMPx access " |
5724 | "mode\n"); | |
efa27145 | 5725 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5726 | } else { |
e0c7dfe7 | 5727 | printk(TPACPI_ERR |
60eb0b35 HMH |
5728 | "ThinkPad ACPI EC access misbehaving, " |
5729 | "disabling thermal sensors access\n"); | |
efa27145 | 5730 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5731 | } |
5732 | } else { | |
5733 | thermal_read_mode = | |
5734 | (ta2 != 0) ? | |
efa27145 | 5735 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5736 | } |
5737 | } else if (acpi_tmp7) { | |
a26f878a HMH |
5738 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
5739 | /* 600e/x, 770e, 770x */ | |
efa27145 | 5740 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
5741 | } else { |
5742 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 5743 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5744 | } |
5745 | } else { | |
5746 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5747 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5748 | } |
78f81cc4 | 5749 | |
fe08bc4b HMH |
5750 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5751 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5752 | thermal_read_mode); | |
5753 | ||
35ff8b9f | 5754 | switch (thermal_read_mode) { |
2c37aa4e | 5755 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5756 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5757 | &thermal_temp_input16_group); |
5758 | if (res) | |
5759 | return res; | |
5760 | break; | |
5761 | case TPACPI_THERMAL_TPEC_8: | |
5762 | case TPACPI_THERMAL_ACPI_TMP07: | |
5763 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5764 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5765 | &thermal_temp_input8_group); |
5766 | if (res) | |
5767 | return res; | |
5768 | break; | |
5769 | case TPACPI_THERMAL_NONE: | |
5770 | default: | |
5771 | return 1; | |
5772 | } | |
5773 | ||
5774 | return 0; | |
5775 | } | |
5776 | ||
5777 | static void thermal_exit(void) | |
5778 | { | |
35ff8b9f | 5779 | switch (thermal_read_mode) { |
2c37aa4e | 5780 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5781 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5782 | &thermal_temp_input16_group); |
5783 | break; | |
5784 | case TPACPI_THERMAL_TPEC_8: | |
5785 | case TPACPI_THERMAL_ACPI_TMP07: | |
5786 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5787 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5788 | &thermal_temp_input16_group); |
5789 | break; | |
5790 | case TPACPI_THERMAL_NONE: | |
5791 | default: | |
5792 | break; | |
5793 | } | |
78f81cc4 BD |
5794 | } |
5795 | ||
a26f878a HMH |
5796 | static int thermal_read(char *p) |
5797 | { | |
5798 | int len = 0; | |
5799 | int n, i; | |
5800 | struct ibm_thermal_sensors_struct t; | |
5801 | ||
5802 | n = thermal_get_sensors(&t); | |
5803 | if (unlikely(n < 0)) | |
5804 | return n; | |
5805 | ||
5806 | len += sprintf(p + len, "temperatures:\t"); | |
5807 | ||
5808 | if (n > 0) { | |
5809 | for (i = 0; i < (n - 1); i++) | |
5810 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
5811 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
5812 | } else | |
5813 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
5814 | |
5815 | return len; | |
5816 | } | |
5817 | ||
a5763f22 HMH |
5818 | static struct ibm_struct thermal_driver_data = { |
5819 | .name = "thermal", | |
5820 | .read = thermal_read, | |
2c37aa4e | 5821 | .exit = thermal_exit, |
a5763f22 HMH |
5822 | }; |
5823 | ||
56b6aeb0 HMH |
5824 | /************************************************************************* |
5825 | * EC Dump subdriver | |
5826 | */ | |
5827 | ||
78f81cc4 BD |
5828 | static u8 ecdump_regs[256]; |
5829 | ||
5830 | static int ecdump_read(char *p) | |
5831 | { | |
5832 | int len = 0; | |
5833 | int i, j; | |
5834 | u8 v; | |
5835 | ||
5836 | len += sprintf(p + len, "EC " | |
5837 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
5838 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
5839 | for (i = 0; i < 256; i += 16) { | |
5840 | len += sprintf(p + len, "EC 0x%02x:", i); | |
5841 | for (j = 0; j < 16; j++) { | |
5842 | if (!acpi_ec_read(i + j, &v)) | |
5843 | break; | |
5844 | if (v != ecdump_regs[i + j]) | |
5845 | len += sprintf(p + len, " *%02x", v); | |
5846 | else | |
5847 | len += sprintf(p + len, " %02x", v); | |
5848 | ecdump_regs[i + j] = v; | |
5849 | } | |
5850 | len += sprintf(p + len, "\n"); | |
5851 | if (j != 16) | |
5852 | break; | |
5853 | } | |
5854 | ||
5855 | /* These are way too dangerous to advertise openly... */ | |
5856 | #if 0 | |
5857 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
5858 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
5859 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
5860 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
5861 | #endif | |
5862 | return len; | |
5863 | } | |
5864 | ||
5865 | static int ecdump_write(char *buf) | |
5866 | { | |
5867 | char *cmd; | |
5868 | int i, v; | |
5869 | ||
5870 | while ((cmd = next_cmd(&buf))) { | |
5871 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
5872 | /* i and v set */ | |
5873 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
5874 | /* i and v set */ | |
5875 | } else | |
5876 | return -EINVAL; | |
5877 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
5878 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
5879 | return -EIO; |
5880 | } else | |
5881 | return -EINVAL; | |
5882 | } | |
5883 | ||
5884 | return 0; | |
78f81cc4 BD |
5885 | } |
5886 | ||
a5763f22 HMH |
5887 | static struct ibm_struct ecdump_driver_data = { |
5888 | .name = "ecdump", | |
5889 | .read = ecdump_read, | |
5890 | .write = ecdump_write, | |
92641177 | 5891 | .flags.experimental = 1, |
a5763f22 HMH |
5892 | }; |
5893 | ||
56b6aeb0 HMH |
5894 | /************************************************************************* |
5895 | * Backlight/brightness subdriver | |
5896 | */ | |
5897 | ||
f74a27d4 HMH |
5898 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5899 | ||
0e501834 HMH |
5900 | /* |
5901 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
5902 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
5903 | * | |
5904 | * EC HBRV (0x31) has the following layout | |
5905 | * Bit 7: unknown function | |
5906 | * Bit 6: unknown function | |
5907 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5908 | * Bit 4: must be set to zero to avoid problems | |
5909 | * Bit 3-0: backlight brightness level | |
5910 | * | |
5911 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
5912 | * |
5913 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
5914 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
5915 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
5916 | */ |
5917 | ||
e11aecf1 HMH |
5918 | enum { |
5919 | TP_EC_BACKLIGHT = 0x31, | |
5920 | ||
5921 | /* TP_EC_BACKLIGHT bitmasks */ | |
5922 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5923 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5924 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5925 | }; | |
5926 | ||
0e501834 HMH |
5927 | enum tpacpi_brightness_access_mode { |
5928 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
5929 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
5930 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
5931 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
5932 | TPACPI_BRGHT_MODE_MAX | |
5933 | }; | |
5934 | ||
94954cc6 | 5935 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
5936 | |
5937 | static enum tpacpi_brightness_access_mode brightness_mode = | |
5938 | TPACPI_BRGHT_MODE_MAX; | |
5939 | ||
f74a27d4 HMH |
5940 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
5941 | ||
b21a15f6 | 5942 | static struct mutex brightness_mutex; |
56b6aeb0 | 5943 | |
0e501834 HMH |
5944 | /* NVRAM brightness access, |
5945 | * call with brightness_mutex held! */ | |
5946 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 5947 | { |
0e501834 | 5948 | u8 lnvram; |
b21a15f6 | 5949 | |
0e501834 HMH |
5950 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
5951 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5952 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5953 | lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07; | |
5954 | ||
5955 | return lnvram; | |
5956 | } | |
5957 | ||
5958 | static void tpacpi_brightness_checkpoint_nvram(void) | |
5959 | { | |
5960 | u8 lec = 0; | |
5961 | u8 b_nvram; | |
5962 | ||
5963 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
5964 | return; | |
5965 | ||
5966 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5967 | "trying to checkpoint backlight level to NVRAM...\n"); | |
5968 | ||
5969 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
5970 | return; | |
5971 | ||
5972 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
5973 | goto unlock; | |
5974 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
5975 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
5976 | ||
5977 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5978 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
5979 | /* NVRAM needs update */ | |
5980 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
5981 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
5982 | b_nvram |= lec; | |
5983 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
5984 | dbg_printk(TPACPI_DBG_BRGHT, | |
5985 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
5986 | (unsigned int) lec, (unsigned int) b_nvram); | |
5987 | } else | |
5988 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5989 | "NVRAM backlight level already is %u (0x%02x)\n", | |
5990 | (unsigned int) lec, (unsigned int) b_nvram); | |
5991 | ||
5992 | unlock: | |
5993 | mutex_unlock(&brightness_mutex); | |
5994 | } | |
5995 | ||
5996 | ||
5997 | /* call with brightness_mutex held! */ | |
5998 | static int tpacpi_brightness_get_raw(int *status) | |
5999 | { | |
6000 | u8 lec = 0; | |
6001 | ||
6002 | switch (brightness_mode) { | |
6003 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6004 | *status = tpacpi_brightness_nvram_get(); | |
6005 | return 0; | |
6006 | case TPACPI_BRGHT_MODE_EC: | |
6007 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6008 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6009 | return -EIO; |
0e501834 HMH |
6010 | *status = lec; |
6011 | return 0; | |
6012 | default: | |
6013 | return -ENXIO; | |
b21a15f6 | 6014 | } |
0e501834 HMH |
6015 | } |
6016 | ||
6017 | /* call with brightness_mutex held! */ | |
6018 | /* do NOT call with illegal backlight level value */ | |
6019 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6020 | { | |
6021 | u8 lec = 0; | |
6022 | ||
6023 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6024 | return -EIO; | |
6025 | ||
6026 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6027 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6028 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6029 | return -EIO; | |
6030 | ||
6031 | return 0; | |
6032 | } | |
6033 | ||
6034 | /* call with brightness_mutex held! */ | |
6035 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6036 | { | |
6037 | int cmos_cmd, inc; | |
6038 | unsigned int current_value, i; | |
6039 | ||
6040 | current_value = tpacpi_brightness_nvram_get(); | |
6041 | ||
6042 | if (value == current_value) | |
6043 | return 0; | |
6044 | ||
6045 | cmos_cmd = (value > current_value) ? | |
6046 | TP_CMOS_BRIGHTNESS_UP : | |
6047 | TP_CMOS_BRIGHTNESS_DOWN; | |
6048 | inc = (value > current_value) ? 1 : -1; | |
6049 | ||
6050 | for (i = current_value; i != value; i += inc) | |
6051 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6052 | return -EIO; | |
b21a15f6 | 6053 | |
e11aecf1 | 6054 | return 0; |
b21a15f6 HMH |
6055 | } |
6056 | ||
6057 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6058 | static int brightness_set(unsigned int value) |
b21a15f6 | 6059 | { |
0e501834 | 6060 | int res; |
b21a15f6 | 6061 | |
e11aecf1 HMH |
6062 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
6063 | value < 0) | |
b21a15f6 HMH |
6064 | return -EINVAL; |
6065 | ||
0e501834 HMH |
6066 | vdbg_printk(TPACPI_DBG_BRGHT, |
6067 | "set backlight level to %d\n", value); | |
6068 | ||
7646ea88 | 6069 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6070 | if (res < 0) |
6071 | return res; | |
6072 | ||
0e501834 HMH |
6073 | switch (brightness_mode) { |
6074 | case TPACPI_BRGHT_MODE_EC: | |
6075 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6076 | res = tpacpi_brightness_set_ec(value); | |
6077 | break; | |
6078 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6079 | res = tpacpi_brightness_set_ucmsstep(value); | |
6080 | break; | |
6081 | default: | |
6082 | res = -ENXIO; | |
b21a15f6 HMH |
6083 | } |
6084 | ||
b21a15f6 HMH |
6085 | mutex_unlock(&brightness_mutex); |
6086 | return res; | |
6087 | } | |
6088 | ||
6089 | /* sysfs backlight class ----------------------------------------------- */ | |
6090 | ||
6091 | static int brightness_update_status(struct backlight_device *bd) | |
6092 | { | |
0e501834 | 6093 | unsigned int level = |
b21a15f6 HMH |
6094 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6095 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6096 | bd->props.brightness : 0; |
6097 | ||
6098 | dbg_printk(TPACPI_DBG_BRGHT, | |
6099 | "backlight: attempt to set level to %d\n", | |
6100 | level); | |
6101 | ||
6102 | /* it is the backlight class's job (caller) to handle | |
6103 | * EINTR and other errors properly */ | |
6104 | return brightness_set(level); | |
b21a15f6 HMH |
6105 | } |
6106 | ||
e11aecf1 | 6107 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6108 | { |
e11aecf1 | 6109 | int status, res; |
a3f104c0 | 6110 | |
0e501834 | 6111 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6112 | if (res < 0) |
0e501834 HMH |
6113 | return 0; |
6114 | ||
6115 | res = tpacpi_brightness_get_raw(&status); | |
6116 | ||
6117 | mutex_unlock(&brightness_mutex); | |
6118 | ||
6119 | if (res < 0) | |
6120 | return 0; | |
e11e211a | 6121 | |
e11aecf1 | 6122 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6123 | } |
6124 | ||
347a2686 HMH |
6125 | static void tpacpi_brightness_notify_change(void) |
6126 | { | |
6127 | backlight_force_update(ibm_backlight_device, | |
6128 | BACKLIGHT_UPDATE_HOTKEY); | |
6129 | } | |
6130 | ||
b21a15f6 | 6131 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6132 | .get_brightness = brightness_get, |
6133 | .update_status = brightness_update_status, | |
56b6aeb0 | 6134 | }; |
e11e211a | 6135 | |
b21a15f6 | 6136 | /* --------------------------------------------------------------------- */ |
e11e211a | 6137 | |
59fe4fe3 HMH |
6138 | /* |
6139 | * These are only useful for models that have only one possibility | |
6140 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6141 | * these quirks. | |
6142 | */ | |
6143 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6144 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6145 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6146 | ||
6147 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6148 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6149 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6150 | ||
6da25bf5 HMH |
6151 | /* Models with ATI GPUs that can use ECNVRAM */ |
6152 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6153 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6154 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
6155 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
6156 | ||
6da25bf5 HMH |
6157 | /* Models with Intel Extreme Graphics 2 */ |
6158 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), | |
a9f8eacc HMH |
6159 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6160 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6161 | |
6162 | /* Models with Intel GMA900 */ | |
6163 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6164 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6165 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6166 | }; | |
6167 | ||
a5763f22 | 6168 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
6169 | { |
6170 | int b; | |
59fe4fe3 | 6171 | unsigned long quirks; |
56b6aeb0 | 6172 | |
fe08bc4b HMH |
6173 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6174 | ||
f432255e HMH |
6175 | mutex_init(&brightness_mutex); |
6176 | ||
59fe4fe3 HMH |
6177 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6178 | ARRAY_SIZE(brightness_quirk_table)); | |
6179 | ||
b5972796 HMH |
6180 | /* |
6181 | * We always attempt to detect acpi support, so as to switch | |
6182 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6183 | * going to publish a backlight interface | |
6184 | */ | |
6185 | b = tpacpi_check_std_acpi_brightness_support(); | |
6186 | if (b > 0) { | |
2dba1b5d TR |
6187 | |
6188 | if (acpi_video_backlight_support()) { | |
6189 | if (brightness_enable > 1) { | |
6190 | printk(TPACPI_NOTICE | |
6191 | "Standard ACPI backlight interface " | |
6192 | "available, not loading native one.\n"); | |
6193 | return 1; | |
6194 | } else if (brightness_enable == 1) { | |
6195 | printk(TPACPI_NOTICE | |
6196 | "Backlight control force enabled, even if standard " | |
6197 | "ACPI backlight interface is available\n"); | |
6198 | } | |
6199 | } else { | |
6200 | if (brightness_enable > 1) { | |
6201 | printk(TPACPI_NOTICE | |
6202 | "Standard ACPI backlight interface not " | |
6203 | "available, thinkpad_acpi native " | |
6204 | "brightness control enabled\n"); | |
6205 | } | |
e11e211a | 6206 | } |
87cc537a HMH |
6207 | } |
6208 | ||
b5972796 | 6209 | if (!brightness_enable) { |
0e501834 | 6210 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6211 | "brightness support disabled by " |
6212 | "module parameter\n"); | |
6213 | return 1; | |
6214 | } | |
6215 | ||
6216 | if (b > 16) { | |
6217 | printk(TPACPI_ERR | |
6218 | "Unsupported brightness interface, " | |
6219 | "please contact %s\n", TPACPI_MAIL); | |
6220 | return 1; | |
6221 | } | |
6222 | if (b == 16) | |
6223 | tp_features.bright_16levels = 1; | |
6224 | ||
0e501834 HMH |
6225 | /* |
6226 | * Check for module parameter bogosity, note that we | |
6227 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6228 | * able to detect "unspecified" | |
6229 | */ | |
6230 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6231 | return -EINVAL; | |
24d3b774 | 6232 | |
0e501834 HMH |
6233 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6234 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6235 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6236 | if (quirks & TPACPI_BRGHT_Q_EC) |
6237 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6238 | else | |
0e501834 | 6239 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6240 | |
0e501834 | 6241 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6242 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6243 | brightness_mode); |
6244 | } | |
24d3b774 | 6245 | |
d7880f10 HMH |
6246 | /* Safety */ |
6247 | if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM && | |
6248 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || | |
6249 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6250 | return -EINVAL; | |
6251 | ||
0e501834 | 6252 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6253 | return 1; |
56b6aeb0 | 6254 | |
a3f104c0 | 6255 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
6256 | printk(TPACPI_INFO |
6257 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 6258 | |
7d5a015e HMH |
6259 | ibm_backlight_device = backlight_device_register( |
6260 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
6261 | &ibm_backlight_data); | |
56b6aeb0 | 6262 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6263 | int rc = PTR_ERR(ibm_backlight_device); |
6264 | ibm_backlight_device = NULL; | |
e0c7dfe7 | 6265 | printk(TPACPI_ERR "Could not register backlight device\n"); |
435c47e2 | 6266 | return rc; |
56b6aeb0 | 6267 | } |
0e501834 HMH |
6268 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6269 | "brightness is supported\n"); | |
56b6aeb0 | 6270 | |
59fe4fe3 HMH |
6271 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
6272 | printk(TPACPI_NOTICE | |
6273 | "brightness: will use unverified default: " | |
6274 | "brightness_mode=%d\n", brightness_mode); | |
6275 | printk(TPACPI_NOTICE | |
6276 | "brightness: please report to %s whether it works well " | |
6277 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
6278 | } | |
6279 | ||
a3f104c0 HMH |
6280 | ibm_backlight_device->props.max_brightness = |
6281 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 6282 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
6283 | backlight_update_status(ibm_backlight_device); |
6284 | ||
347a2686 HMH |
6285 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6286 | "brightness: registering brightness hotkeys " | |
6287 | "as change notification\n"); | |
6288 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6289 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
6290 | | TP_ACPI_HKEY_BRGHTDWN_MASK);; | |
56b6aeb0 HMH |
6291 | return 0; |
6292 | } | |
6293 | ||
0e501834 HMH |
6294 | static void brightness_suspend(pm_message_t state) |
6295 | { | |
6296 | tpacpi_brightness_checkpoint_nvram(); | |
6297 | } | |
6298 | ||
6299 | static void brightness_shutdown(void) | |
6300 | { | |
6301 | tpacpi_brightness_checkpoint_nvram(); | |
6302 | } | |
6303 | ||
56b6aeb0 HMH |
6304 | static void brightness_exit(void) |
6305 | { | |
6306 | if (ibm_backlight_device) { | |
0e501834 | 6307 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6308 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6309 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6310 | } |
0e501834 HMH |
6311 | |
6312 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6313 | } |
6314 | ||
56b6aeb0 HMH |
6315 | static int brightness_read(char *p) |
6316 | { | |
6317 | int len = 0; | |
6318 | int level; | |
6319 | ||
35ff8b9f HMH |
6320 | level = brightness_get(NULL); |
6321 | if (level < 0) { | |
56b6aeb0 HMH |
6322 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
6323 | } else { | |
a3f104c0 | 6324 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
6325 | len += sprintf(p + len, "commands:\tup, down\n"); |
6326 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
6327 | " (<level> is 0-%d)\n", |
6328 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
6329 | } |
6330 | ||
6331 | return len; | |
6332 | } | |
6333 | ||
8acb0250 HM |
6334 | static int brightness_write(char *buf) |
6335 | { | |
6336 | int level; | |
4273af8d | 6337 | int rc; |
1da177e4 | 6338 | char *cmd; |
a3f104c0 | 6339 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 6340 | |
4273af8d HMH |
6341 | level = brightness_get(NULL); |
6342 | if (level < 0) | |
6343 | return level; | |
78f81cc4 | 6344 | |
4273af8d | 6345 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6346 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
6347 | if (level < max_level) |
6348 | level++; | |
78f81cc4 | 6349 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6350 | if (level > 0) |
6351 | level--; | |
6352 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
6353 | level >= 0 && level <= max_level) { | |
6354 | /* new level set */ | |
78f81cc4 BD |
6355 | } else |
6356 | return -EINVAL; | |
78f81cc4 BD |
6357 | } |
6358 | ||
0e501834 HMH |
6359 | tpacpi_disclose_usertask("procfs brightness", |
6360 | "set level to %d\n", level); | |
6361 | ||
4273af8d HMH |
6362 | /* |
6363 | * Now we know what the final level should be, so we try to set it. | |
6364 | * Doing it this way makes the syscall restartable in case of EINTR | |
6365 | */ | |
6366 | rc = brightness_set(level); | |
347a2686 HMH |
6367 | if (!rc && ibm_backlight_device) |
6368 | backlight_force_update(ibm_backlight_device, | |
6369 | BACKLIGHT_UPDATE_SYSFS); | |
80a8d122 | 6370 | return (rc == -EINTR)? -ERESTARTSYS : rc; |
78f81cc4 BD |
6371 | } |
6372 | ||
a5763f22 HMH |
6373 | static struct ibm_struct brightness_driver_data = { |
6374 | .name = "brightness", | |
6375 | .read = brightness_read, | |
6376 | .write = brightness_write, | |
6377 | .exit = brightness_exit, | |
0e501834 HMH |
6378 | .suspend = brightness_suspend, |
6379 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6380 | }; |
6381 | ||
56b6aeb0 HMH |
6382 | /************************************************************************* |
6383 | * Volume subdriver | |
6384 | */ | |
fb87a811 | 6385 | |
329e4e18 HMH |
6386 | /* |
6387 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6388 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6389 | * | |
6390 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6391 | * ThinkPads only implement the MUTE gate. | |
6392 | * | |
6393 | * EC register 0x30 | |
6394 | * Bit 6: MUTE (1 mutes sound) | |
6395 | * Bit 3-0: Volume | |
6396 | * Other bits should be zero as far as we know. | |
6397 | * | |
6398 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6399 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6400 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6401 | * and we leave them unchanged. | |
6402 | */ | |
6403 | ||
6404 | enum { | |
6405 | TP_EC_AUDIO = 0x30, | |
6406 | ||
6407 | /* TP_EC_AUDIO bits */ | |
6408 | TP_EC_AUDIO_MUTESW = 6, | |
6409 | ||
6410 | /* TP_EC_AUDIO bitmasks */ | |
6411 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6412 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6413 | ||
6414 | /* Maximum volume */ | |
6415 | TP_EC_VOLUME_MAX = 14, | |
6416 | }; | |
6417 | ||
6418 | enum tpacpi_volume_access_mode { | |
6419 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6420 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6421 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6422 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6423 | TPACPI_VOL_MODE_MAX | |
6424 | }; | |
6425 | ||
a112ceee HMH |
6426 | enum tpacpi_volume_capabilities { |
6427 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6428 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6429 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6430 | TPACPI_VOL_CAP_MAX | |
6431 | }; | |
6432 | ||
329e4e18 HMH |
6433 | static enum tpacpi_volume_access_mode volume_mode = |
6434 | TPACPI_VOL_MODE_MAX; | |
6435 | ||
a112ceee | 6436 | static enum tpacpi_volume_capabilities volume_capabilities; |
329e4e18 HMH |
6437 | |
6438 | /* | |
6439 | * Used to syncronize writers to TP_EC_AUDIO and | |
6440 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
6441 | */ | |
6442 | static struct mutex volume_mutex; | |
6443 | ||
6444 | static void tpacpi_volume_checkpoint_nvram(void) | |
6445 | { | |
6446 | u8 lec = 0; | |
6447 | u8 b_nvram; | |
a112ceee | 6448 | u8 ec_mask; |
329e4e18 HMH |
6449 | |
6450 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
6451 | return; | |
6452 | ||
6453 | vdbg_printk(TPACPI_DBG_MIXER, | |
6454 | "trying to checkpoint mixer state to NVRAM...\n"); | |
6455 | ||
a112ceee HMH |
6456 | if (tp_features.mixer_no_level_control) |
6457 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6458 | else | |
6459 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6460 | ||
329e4e18 HMH |
6461 | if (mutex_lock_killable(&volume_mutex) < 0) |
6462 | return; | |
6463 | ||
6464 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6465 | goto unlock; | |
6466 | lec &= ec_mask; | |
6467 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6468 | ||
6469 | if (lec != (b_nvram & ec_mask)) { | |
6470 | /* NVRAM needs update */ | |
6471 | b_nvram &= ~ec_mask; | |
6472 | b_nvram |= lec; | |
6473 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6474 | dbg_printk(TPACPI_DBG_MIXER, | |
6475 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6476 | (unsigned int) lec, (unsigned int) b_nvram); | |
6477 | } else { | |
6478 | vdbg_printk(TPACPI_DBG_MIXER, | |
6479 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6480 | (unsigned int) lec, (unsigned int) b_nvram); | |
6481 | } | |
6482 | ||
6483 | unlock: | |
6484 | mutex_unlock(&volume_mutex); | |
6485 | } | |
6486 | ||
6487 | static int volume_get_status_ec(u8 *status) | |
6488 | { | |
6489 | u8 s; | |
6490 | ||
6491 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) | |
6492 | return -EIO; | |
6493 | ||
6494 | *status = s; | |
6495 | ||
6496 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); | |
6497 | ||
6498 | return 0; | |
6499 | } | |
6500 | ||
6501 | static int volume_get_status(u8 *status) | |
6502 | { | |
6503 | return volume_get_status_ec(status); | |
6504 | } | |
6505 | ||
6506 | static int volume_set_status_ec(const u8 status) | |
6507 | { | |
6508 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6509 | return -EIO; | |
6510 | ||
6511 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); | |
6512 | ||
6513 | return 0; | |
6514 | } | |
6515 | ||
6516 | static int volume_set_status(const u8 status) | |
6517 | { | |
6518 | return volume_set_status_ec(status); | |
6519 | } | |
6520 | ||
6521 | static int volume_set_mute_ec(const bool mute) | |
6522 | { | |
6523 | int rc; | |
6524 | u8 s, n; | |
6525 | ||
6526 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6527 | return -EINTR; | |
6528 | ||
6529 | rc = volume_get_status_ec(&s); | |
6530 | if (rc) | |
6531 | goto unlock; | |
6532 | ||
6533 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6534 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6535 | ||
6536 | if (n != s) | |
6537 | rc = volume_set_status_ec(n); | |
6538 | ||
6539 | unlock: | |
6540 | mutex_unlock(&volume_mutex); | |
6541 | return rc; | |
6542 | } | |
6543 | ||
6544 | static int volume_set_mute(const bool mute) | |
6545 | { | |
6546 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", | |
6547 | (mute) ? "" : "un"); | |
6548 | return volume_set_mute_ec(mute); | |
6549 | } | |
6550 | ||
6551 | static int volume_set_volume_ec(const u8 vol) | |
6552 | { | |
6553 | int rc; | |
6554 | u8 s, n; | |
6555 | ||
6556 | if (vol > TP_EC_VOLUME_MAX) | |
6557 | return -EINVAL; | |
6558 | ||
6559 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6560 | return -EINTR; | |
6561 | ||
6562 | rc = volume_get_status_ec(&s); | |
6563 | if (rc) | |
6564 | goto unlock; | |
6565 | ||
6566 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6567 | ||
6568 | if (n != s) | |
6569 | rc = volume_set_status_ec(n); | |
6570 | ||
6571 | unlock: | |
6572 | mutex_unlock(&volume_mutex); | |
6573 | return rc; | |
6574 | } | |
6575 | ||
6576 | static int volume_set_volume(const u8 vol) | |
6577 | { | |
6578 | dbg_printk(TPACPI_DBG_MIXER, | |
6579 | "trying to set volume level to %hu\n", vol); | |
6580 | return volume_set_volume_ec(vol); | |
6581 | } | |
6582 | ||
6583 | static void volume_suspend(pm_message_t state) | |
6584 | { | |
6585 | tpacpi_volume_checkpoint_nvram(); | |
6586 | } | |
6587 | ||
6588 | static void volume_shutdown(void) | |
6589 | { | |
6590 | tpacpi_volume_checkpoint_nvram(); | |
6591 | } | |
6592 | ||
6593 | static void volume_exit(void) | |
6594 | { | |
6595 | tpacpi_volume_checkpoint_nvram(); | |
6596 | } | |
6597 | ||
a112ceee HMH |
6598 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
6599 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
6600 | ||
6601 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
6602 | /* Whitelist volume level on all IBM by default */ | |
6603 | { .vendor = PCI_VENDOR_ID_IBM, | |
6604 | .bios = TPACPI_MATCH_ANY, | |
6605 | .ec = TPACPI_MATCH_ANY, | |
6606 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
6607 | ||
6608 | /* Lenovo models with volume control (needs confirmation) */ | |
6609 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
6610 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
6611 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
6612 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
6613 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
6614 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
6615 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
6616 | ||
6617 | /* Whitelist mute-only on all Lenovo by default */ | |
6618 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
6619 | .bios = TPACPI_MATCH_ANY, | |
6620 | .ec = TPACPI_MATCH_ANY, | |
6621 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
6622 | }; | |
6623 | ||
329e4e18 HMH |
6624 | static int __init volume_init(struct ibm_init_struct *iibm) |
6625 | { | |
a112ceee HMH |
6626 | unsigned long quirks; |
6627 | ||
329e4e18 HMH |
6628 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
6629 | ||
6630 | mutex_init(&volume_mutex); | |
6631 | ||
6632 | /* | |
6633 | * Check for module parameter bogosity, note that we | |
6634 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
6635 | * able to detect "unspecified" | |
6636 | */ | |
6637 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
6638 | return -EINVAL; | |
6639 | ||
6640 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
6641 | printk(TPACPI_ERR | |
6642 | "UCMS step volume mode not implemented, " | |
6643 | "please contact %s\n", TPACPI_MAIL); | |
6644 | return 1; | |
6645 | } | |
6646 | ||
a112ceee HMH |
6647 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
6648 | return -EINVAL; | |
6649 | ||
6650 | quirks = tpacpi_check_quirks(volume_quirk_table, | |
6651 | ARRAY_SIZE(volume_quirk_table)); | |
6652 | ||
6653 | switch (volume_capabilities) { | |
6654 | case TPACPI_VOL_CAP_AUTO: | |
6655 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
6656 | tp_features.mixer_no_level_control = 1; | |
6657 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
6658 | tp_features.mixer_no_level_control = 0; | |
6659 | else | |
6660 | return 1; /* no mixer */ | |
6661 | break; | |
6662 | case TPACPI_VOL_CAP_VOLMUTE: | |
6663 | tp_features.mixer_no_level_control = 0; | |
6664 | break; | |
6665 | case TPACPI_VOL_CAP_MUTEONLY: | |
6666 | tp_features.mixer_no_level_control = 1; | |
6667 | break; | |
6668 | default: | |
6669 | return 1; | |
6670 | } | |
6671 | ||
6672 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
6673 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6674 | "using user-supplied volume_capabilities=%d\n", | |
6675 | volume_capabilities); | |
6676 | ||
329e4e18 HMH |
6677 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
6678 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
6679 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
6680 | ||
6681 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6682 | "driver auto-selected volume_mode=%d\n", | |
6683 | volume_mode); | |
6684 | } else { | |
6685 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6686 | "using user-supplied volume_mode=%d\n", | |
6687 | volume_mode); | |
6688 | } | |
6689 | ||
6690 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
6691 | "mute is supported, volume control is %s\n", |
6692 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 HMH |
6693 | |
6694 | return 0; | |
6695 | } | |
f74a27d4 | 6696 | |
78f81cc4 BD |
6697 | static int volume_read(char *p) |
6698 | { | |
6699 | int len = 0; | |
329e4e18 | 6700 | u8 status; |
78f81cc4 | 6701 | |
329e4e18 | 6702 | if (volume_get_status(&status) < 0) { |
78f81cc4 BD |
6703 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
6704 | } else { | |
a112ceee HMH |
6705 | if (tp_features.mixer_no_level_control) |
6706 | len += sprintf(p + len, "level:\t\tunsupported\n"); | |
6707 | else | |
6708 | len += sprintf(p + len, "level:\t\t%d\n", | |
6709 | status & TP_EC_AUDIO_LVL_MSK); | |
6710 | ||
329e4e18 HMH |
6711 | len += sprintf(p + len, "mute:\t\t%s\n", |
6712 | onoff(status, TP_EC_AUDIO_MUTESW)); | |
a112ceee HMH |
6713 | |
6714 | len += sprintf(p + len, "commands:\tunmute, mute\n"); | |
6715 | if (!tp_features.mixer_no_level_control) { | |
6716 | len += sprintf(p + len, "commands:\tup, down\n"); | |
6717 | len += sprintf(p + len, "commands:\tlevel <level>" | |
329e4e18 | 6718 | " (<level> is 0-%d)\n", TP_EC_VOLUME_MAX); |
a112ceee | 6719 | } |
78f81cc4 BD |
6720 | } |
6721 | ||
6722 | return len; | |
6723 | } | |
6724 | ||
78f81cc4 BD |
6725 | static int volume_write(char *buf) |
6726 | { | |
329e4e18 HMH |
6727 | u8 s; |
6728 | u8 new_level, new_mute; | |
6729 | int l; | |
78f81cc4 | 6730 | char *cmd; |
329e4e18 | 6731 | int rc; |
78f81cc4 | 6732 | |
329e4e18 HMH |
6733 | rc = volume_get_status(&s); |
6734 | if (rc < 0) | |
6735 | return rc; | |
78f81cc4 | 6736 | |
329e4e18 HMH |
6737 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
6738 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
6739 | ||
6740 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
6741 | if (!tp_features.mixer_no_level_control) { |
6742 | if (strlencmp(cmd, "up") == 0) { | |
6743 | if (new_mute) | |
6744 | new_mute = 0; | |
6745 | else if (new_level < TP_EC_VOLUME_MAX) | |
6746 | new_level++; | |
6747 | continue; | |
6748 | } else if (strlencmp(cmd, "down") == 0) { | |
6749 | if (new_mute) | |
6750 | new_mute = 0; | |
6751 | else if (new_level > 0) | |
6752 | new_level--; | |
6753 | continue; | |
6754 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
6755 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
6756 | new_level = l; | |
6757 | continue; | |
6758 | } | |
6759 | } | |
6760 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 6761 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
6762 | else if (strlencmp(cmd, "unmute") == 0) |
6763 | new_mute = 0; | |
6764 | else | |
1da177e4 | 6765 | return -EINVAL; |
329e4e18 | 6766 | } |
1da177e4 | 6767 | |
a112ceee HMH |
6768 | if (tp_features.mixer_no_level_control) { |
6769 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
6770 | new_mute ? "" : "un"); | |
6771 | rc = volume_set_mute(!!new_mute); | |
6772 | } else { | |
6773 | tpacpi_disclose_usertask("procfs volume", | |
6774 | "%smute and set level to %d\n", | |
6775 | new_mute ? "" : "un", new_level); | |
6776 | rc = volume_set_status(new_mute | new_level); | |
6777 | } | |
78f81cc4 | 6778 | |
329e4e18 | 6779 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
6780 | } |
6781 | ||
a5763f22 HMH |
6782 | static struct ibm_struct volume_driver_data = { |
6783 | .name = "volume", | |
6784 | .read = volume_read, | |
6785 | .write = volume_write, | |
329e4e18 HMH |
6786 | .exit = volume_exit, |
6787 | .suspend = volume_suspend, | |
6788 | .shutdown = volume_shutdown, | |
a5763f22 | 6789 | }; |
56b6aeb0 HMH |
6790 | |
6791 | /************************************************************************* | |
6792 | * Fan subdriver | |
6793 | */ | |
6794 | ||
6795 | /* | |
6796 | * FAN ACCESS MODES | |
6797 | * | |
efa27145 | 6798 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
6799 | * ACPI GFAN method: returns fan level |
6800 | * | |
efa27145 | 6801 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 6802 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 6803 | * |
efa27145 | 6804 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
6805 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
6806 | * | |
f51d1a39 HMH |
6807 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
6808 | * it for writing. | |
56b6aeb0 | 6809 | * |
efa27145 | 6810 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
6811 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
6812 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
6813 | * |
6814 | * Fan speed changes of any sort (including those caused by the | |
6815 | * disengaged mode) are usually done slowly by the firmware as the | |
6816 | * maximum ammount of fan duty cycle change per second seems to be | |
6817 | * limited. | |
6818 | * | |
6819 | * Reading is not available if GFAN exists. | |
6820 | * Writing is not available if SFAN exists. | |
6821 | * | |
6822 | * Bits | |
6823 | * 7 automatic mode engaged; | |
6824 | * (default operation mode of the ThinkPad) | |
6825 | * fan level is ignored in this mode. | |
f51d1a39 | 6826 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 6827 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
6828 | * the tachometer while the fan controller ramps up |
6829 | * the speed (which can take up to a few *minutes*). | |
6830 | * Speeds up fan to 100% duty-cycle, which is far above | |
6831 | * the standard RPM levels. It is not impossible that | |
6832 | * it could cause hardware damage. | |
56b6aeb0 HMH |
6833 | * 5-3 unused in some models. Extra bits for fan level |
6834 | * in others, but still useless as all values above | |
6835 | * 7 map to the same speed as level 7 in these models. | |
6836 | * 2-0 fan level (0..7 usually) | |
6837 | * 0x00 = stop | |
6838 | * 0x07 = max (set when temperatures critical) | |
6839 | * Some ThinkPads may have other levels, see | |
efa27145 | 6840 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
6841 | * |
6842 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
6843 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
6844 | * does so, its initial value is meaningless (0x07). | |
6845 | * | |
6846 | * For firmware bugs, refer to: | |
6847 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
6848 | * | |
6849 | * ---- | |
6850 | * | |
6851 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
6852 | * Main fan tachometer reading (in RPM) | |
6853 | * | |
6854 | * This register is present on all ThinkPads with a new-style EC, and | |
6855 | * it is known not to be present on the A21m/e, and T22, as there is | |
6856 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
6857 | * ThinkPads from this same time period (and earlier) probably lack the | |
6858 | * tachometer as well. | |
6859 | * | |
877d0310 | 6860 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
6861 | * was never fixed by IBM to report the EC firmware version string |
6862 | * probably support the tachometer (like the early X models), so | |
6863 | * detecting it is quite hard. We need more data to know for sure. | |
6864 | * | |
6865 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
6866 | * might result. | |
6867 | * | |
f51d1a39 HMH |
6868 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
6869 | * mode. | |
56b6aeb0 HMH |
6870 | * |
6871 | * For firmware bugs, refer to: | |
6872 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
6873 | * | |
d7377247 HMH |
6874 | * ---- |
6875 | * | |
6876 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
6877 | * | |
6878 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
6879 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
6880 | * is one, the tachometer registers show the speed of the auxiliary | |
6881 | * fan. | |
6882 | * | |
6883 | * Fan control seems to affect both fans, regardless of the state | |
6884 | * of this bit. | |
6885 | * | |
6886 | * So far, only the firmware for the X60/X61 non-tablet versions | |
6887 | * seem to support this (firmware TP-7M). | |
6888 | * | |
efa27145 | 6889 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
6890 | * ThinkPad X31, X40, X41. Not available in the X60. |
6891 | * | |
6892 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
6893 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
6894 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
6895 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
6896 | * | |
6897 | * The speeds are stored on handles | |
6898 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
6899 | * | |
6900 | * There are three default speed sets, acessible as handles: | |
6901 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
6902 | * | |
6903 | * ACPI DSDT switches which set is in use depending on various | |
6904 | * factors. | |
6905 | * | |
efa27145 | 6906 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
6907 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
6908 | * but the ACPI tables just mention level 7. | |
6909 | */ | |
6910 | ||
f74a27d4 HMH |
6911 | enum { /* Fan control constants */ |
6912 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
6913 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
6914 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
6915 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
6916 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
6917 | |
6918 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
6919 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
6920 | ||
6921 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
6922 | }; | |
6923 | ||
6924 | enum fan_status_access_mode { | |
6925 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
6926 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
6927 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
6928 | }; | |
6929 | ||
6930 | enum fan_control_access_mode { | |
6931 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
6932 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
6933 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
6934 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
6935 | }; | |
6936 | ||
6937 | enum fan_control_commands { | |
6938 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
6939 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
6940 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
6941 | * and also watchdog cmd */ | |
6942 | }; | |
6943 | ||
6944 | static int fan_control_allowed; | |
6945 | ||
69ba91cb HMH |
6946 | static enum fan_status_access_mode fan_status_access_mode; |
6947 | static enum fan_control_access_mode fan_control_access_mode; | |
6948 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 6949 | |
778b4d74 | 6950 | static u8 fan_control_initial_status; |
fe98a52c | 6951 | static u8 fan_control_desired_level; |
0081b162 | 6952 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
6953 | static int fan_watchdog_maxinterval; |
6954 | ||
6955 | static struct mutex fan_mutex; | |
778b4d74 | 6956 | |
25c68a33 | 6957 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 6958 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 6959 | |
e0c7dfe7 HMH |
6960 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
6961 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
6962 | "\\FSPD", /* 600e/x, 770e, 770x */ |
6963 | ); /* all others */ | |
e0c7dfe7 | 6964 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
6965 | "JFNS", /* 770x-JL */ |
6966 | ); /* all others */ | |
6967 | ||
1c2ece75 HMH |
6968 | /* |
6969 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
6970 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
6971 | * be in auto mode (0x80). | |
6972 | * | |
6973 | * This is corrected by any write to HFSP either by the driver, or | |
6974 | * by the firmware. | |
6975 | * | |
6976 | * We assume 0x07 really means auto mode while this quirk is active, | |
6977 | * as this is far more likely than the ThinkPad being in level 7, | |
6978 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
6979 | * |
6980 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
6981 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
6982 | */ |
6983 | ||
7d95a3d5 | 6984 | static void fan_quirk1_setup(void) |
1c2ece75 | 6985 | { |
1c2ece75 | 6986 | if (fan_control_initial_status == 0x07) { |
7d95a3d5 HMH |
6987 | printk(TPACPI_NOTICE |
6988 | "fan_init: initial fan status is unknown, " | |
6989 | "assuming it is in auto mode\n"); | |
6990 | tp_features.fan_ctrl_status_undef = 1; | |
1c2ece75 HMH |
6991 | } |
6992 | } | |
6993 | ||
6994 | static void fan_quirk1_handle(u8 *fan_status) | |
6995 | { | |
6996 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
6997 | if (*fan_status != fan_control_initial_status) { | |
6998 | /* something changed the HFSP regisnter since | |
6999 | * driver init time, so it is not undefined | |
7000 | * anymore */ | |
7001 | tp_features.fan_ctrl_status_undef = 0; | |
7002 | } else { | |
7003 | /* Return most likely status. In fact, it | |
7004 | * might be the only possible status */ | |
7005 | *fan_status = TP_EC_FAN_AUTO; | |
7006 | } | |
7007 | } | |
7008 | } | |
7009 | ||
d7377247 HMH |
7010 | /* Select main fan on X60/X61, NOOP on others */ |
7011 | static bool fan_select_fan1(void) | |
7012 | { | |
7013 | if (tp_features.second_fan) { | |
7014 | u8 val; | |
7015 | ||
7016 | if (ec_read(fan_select_offset, &val) < 0) | |
7017 | return false; | |
7018 | val &= 0xFEU; | |
7019 | if (ec_write(fan_select_offset, val) < 0) | |
7020 | return false; | |
7021 | } | |
7022 | return true; | |
7023 | } | |
7024 | ||
7025 | /* Select secondary fan on X60/X61 */ | |
7026 | static bool fan_select_fan2(void) | |
7027 | { | |
7028 | u8 val; | |
7029 | ||
7030 | if (!tp_features.second_fan) | |
7031 | return false; | |
7032 | ||
7033 | if (ec_read(fan_select_offset, &val) < 0) | |
7034 | return false; | |
7035 | val |= 0x01U; | |
7036 | if (ec_write(fan_select_offset, val) < 0) | |
7037 | return false; | |
7038 | ||
7039 | return true; | |
7040 | } | |
7041 | ||
fe98a52c | 7042 | /* |
b21a15f6 | 7043 | * Call with fan_mutex held |
fe98a52c | 7044 | */ |
b21a15f6 | 7045 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7046 | { |
b21a15f6 HMH |
7047 | if ((status & |
7048 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7049 | if (status > 7) | |
7050 | fan_control_desired_level = 7; | |
7051 | else | |
7052 | fan_control_desired_level = status; | |
7053 | } | |
7054 | } | |
fe98a52c | 7055 | |
b21a15f6 HMH |
7056 | static int fan_get_status(u8 *status) |
7057 | { | |
7058 | u8 s; | |
fe98a52c | 7059 | |
b21a15f6 HMH |
7060 | /* TODO: |
7061 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7062 | |
b21a15f6 HMH |
7063 | switch (fan_status_access_mode) { |
7064 | case TPACPI_FAN_RD_ACPI_GFAN: | |
7065 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 7066 | |
b21a15f6 HMH |
7067 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
7068 | return -EIO; | |
fe98a52c | 7069 | |
b21a15f6 HMH |
7070 | if (likely(status)) |
7071 | *status = s & 0x07; | |
fe98a52c | 7072 | |
b21a15f6 HMH |
7073 | break; |
7074 | ||
7075 | case TPACPI_FAN_RD_TPEC: | |
7076 | /* all except 570, 600e/x, 770e, 770x */ | |
7077 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7078 | return -EIO; | |
7079 | ||
1c2ece75 | 7080 | if (likely(status)) { |
b21a15f6 | 7081 | *status = s; |
1c2ece75 HMH |
7082 | fan_quirk1_handle(status); |
7083 | } | |
fe98a52c | 7084 | |
fe98a52c | 7085 | break; |
b21a15f6 | 7086 | |
fe98a52c | 7087 | default: |
b21a15f6 | 7088 | return -ENXIO; |
fe98a52c HMH |
7089 | } |
7090 | ||
b21a15f6 HMH |
7091 | return 0; |
7092 | } | |
fe98a52c | 7093 | |
b21a15f6 HMH |
7094 | static int fan_get_status_safe(u8 *status) |
7095 | { | |
7096 | int rc; | |
7097 | u8 s; | |
fe98a52c | 7098 | |
7646ea88 | 7099 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7100 | return -ERESTARTSYS; |
7101 | rc = fan_get_status(&s); | |
7102 | if (!rc) | |
7103 | fan_update_desired_level(s); | |
7104 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7105 | |
b21a15f6 HMH |
7106 | if (status) |
7107 | *status = s; | |
fe98a52c | 7108 | |
b21a15f6 HMH |
7109 | return rc; |
7110 | } | |
7111 | ||
7112 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7113 | { |
b21a15f6 | 7114 | u8 hi, lo; |
fe98a52c | 7115 | |
b21a15f6 HMH |
7116 | switch (fan_status_access_mode) { |
7117 | case TPACPI_FAN_RD_TPEC: | |
7118 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7119 | if (unlikely(!fan_select_fan1())) |
7120 | return -EIO; | |
b21a15f6 HMH |
7121 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7122 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7123 | return -EIO; | |
fe98a52c | 7124 | |
b21a15f6 HMH |
7125 | if (likely(speed)) |
7126 | *speed = (hi << 8) | lo; | |
fe98a52c | 7127 | |
b21a15f6 | 7128 | break; |
fe98a52c | 7129 | |
b21a15f6 HMH |
7130 | default: |
7131 | return -ENXIO; | |
7132 | } | |
fe98a52c | 7133 | |
b21a15f6 | 7134 | return 0; |
fe98a52c HMH |
7135 | } |
7136 | ||
d7377247 HMH |
7137 | static int fan2_get_speed(unsigned int *speed) |
7138 | { | |
7139 | u8 hi, lo; | |
7140 | bool rc; | |
7141 | ||
7142 | switch (fan_status_access_mode) { | |
7143 | case TPACPI_FAN_RD_TPEC: | |
7144 | /* all except 570, 600e/x, 770e, 770x */ | |
7145 | if (unlikely(!fan_select_fan2())) | |
7146 | return -EIO; | |
7147 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7148 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7149 | fan_select_fan1(); /* play it safe */ | |
7150 | if (rc) | |
7151 | return -EIO; | |
7152 | ||
7153 | if (likely(speed)) | |
7154 | *speed = (hi << 8) | lo; | |
7155 | ||
7156 | break; | |
7157 | ||
7158 | default: | |
7159 | return -ENXIO; | |
7160 | } | |
7161 | ||
7162 | return 0; | |
7163 | } | |
7164 | ||
b21a15f6 | 7165 | static int fan_set_level(int level) |
fe98a52c | 7166 | { |
b21a15f6 HMH |
7167 | if (!fan_control_allowed) |
7168 | return -EPERM; | |
fe98a52c | 7169 | |
b21a15f6 HMH |
7170 | switch (fan_control_access_mode) { |
7171 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7172 | if (level >= 0 && level <= 7) { | |
7173 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7174 | return -EIO; | |
7175 | } else | |
7176 | return -EINVAL; | |
7177 | break; | |
fe98a52c | 7178 | |
b21a15f6 HMH |
7179 | case TPACPI_FAN_WR_ACPI_FANS: |
7180 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7181 | if (!(level & TP_EC_FAN_AUTO) && |
7182 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7183 | ((level < 0) || (level > 7))) |
7184 | return -EINVAL; | |
fe98a52c | 7185 | |
b21a15f6 HMH |
7186 | /* safety net should the EC not support AUTO |
7187 | * or FULLSPEED mode bits and just ignore them */ | |
7188 | if (level & TP_EC_FAN_FULLSPEED) | |
7189 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7190 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7191 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7192 | |
b21a15f6 HMH |
7193 | if (!acpi_ec_write(fan_status_offset, level)) |
7194 | return -EIO; | |
7195 | else | |
7196 | tp_features.fan_ctrl_status_undef = 0; | |
7197 | break; | |
fe98a52c | 7198 | |
b21a15f6 HMH |
7199 | default: |
7200 | return -ENXIO; | |
7201 | } | |
74a60c0f HMH |
7202 | |
7203 | vdbg_printk(TPACPI_DBG_FAN, | |
7204 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7205 | return 0; |
fe98a52c HMH |
7206 | } |
7207 | ||
b21a15f6 | 7208 | static int fan_set_level_safe(int level) |
fe98a52c | 7209 | { |
b21a15f6 | 7210 | int rc; |
fe98a52c | 7211 | |
b21a15f6 HMH |
7212 | if (!fan_control_allowed) |
7213 | return -EPERM; | |
fe98a52c | 7214 | |
7646ea88 | 7215 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7216 | return -ERESTARTSYS; |
fe98a52c | 7217 | |
b21a15f6 HMH |
7218 | if (level == TPACPI_FAN_LAST_LEVEL) |
7219 | level = fan_control_desired_level; | |
fe98a52c | 7220 | |
b21a15f6 HMH |
7221 | rc = fan_set_level(level); |
7222 | if (!rc) | |
7223 | fan_update_desired_level(level); | |
7224 | ||
7225 | mutex_unlock(&fan_mutex); | |
7226 | return rc; | |
fe98a52c HMH |
7227 | } |
7228 | ||
b21a15f6 | 7229 | static int fan_set_enable(void) |
fe98a52c | 7230 | { |
b21a15f6 HMH |
7231 | u8 s; |
7232 | int rc; | |
fe98a52c | 7233 | |
ecf2a80a HMH |
7234 | if (!fan_control_allowed) |
7235 | return -EPERM; | |
7236 | ||
7646ea88 | 7237 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7238 | return -ERESTARTSYS; |
fe98a52c | 7239 | |
b21a15f6 HMH |
7240 | switch (fan_control_access_mode) { |
7241 | case TPACPI_FAN_WR_ACPI_FANS: | |
7242 | case TPACPI_FAN_WR_TPEC: | |
7243 | rc = fan_get_status(&s); | |
7244 | if (rc < 0) | |
7245 | break; | |
fe98a52c | 7246 | |
b21a15f6 HMH |
7247 | /* Don't go out of emergency fan mode */ |
7248 | if (s != 7) { | |
7249 | s &= 0x07; | |
7250 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7251 | } | |
fe98a52c | 7252 | |
b21a15f6 HMH |
7253 | if (!acpi_ec_write(fan_status_offset, s)) |
7254 | rc = -EIO; | |
7255 | else { | |
7256 | tp_features.fan_ctrl_status_undef = 0; | |
7257 | rc = 0; | |
7258 | } | |
7259 | break; | |
fe98a52c | 7260 | |
b21a15f6 HMH |
7261 | case TPACPI_FAN_WR_ACPI_SFAN: |
7262 | rc = fan_get_status(&s); | |
7263 | if (rc < 0) | |
7264 | break; | |
fe98a52c | 7265 | |
b21a15f6 | 7266 | s &= 0x07; |
fe98a52c | 7267 | |
b21a15f6 HMH |
7268 | /* Set fan to at least level 4 */ |
7269 | s |= 4; | |
fe08bc4b | 7270 | |
b21a15f6 | 7271 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7272 | rc = -EIO; |
b21a15f6 HMH |
7273 | else |
7274 | rc = 0; | |
7275 | break; | |
78f81cc4 | 7276 | |
b21a15f6 HMH |
7277 | default: |
7278 | rc = -ENXIO; | |
7279 | } | |
5fba344c | 7280 | |
b21a15f6 | 7281 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7282 | |
7283 | if (!rc) | |
7284 | vdbg_printk(TPACPI_DBG_FAN, | |
7285 | "fan control: set fan control register to 0x%02x\n", | |
7286 | s); | |
b21a15f6 | 7287 | return rc; |
69ba91cb | 7288 | } |
78f81cc4 | 7289 | |
b21a15f6 | 7290 | static int fan_set_disable(void) |
78f81cc4 | 7291 | { |
b21a15f6 | 7292 | int rc; |
c52f0aa5 | 7293 | |
b21a15f6 HMH |
7294 | if (!fan_control_allowed) |
7295 | return -EPERM; | |
78f81cc4 | 7296 | |
7646ea88 | 7297 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7298 | return -ERESTARTSYS; |
3ef8a609 | 7299 | |
b21a15f6 HMH |
7300 | rc = 0; |
7301 | switch (fan_control_access_mode) { | |
7302 | case TPACPI_FAN_WR_ACPI_FANS: | |
7303 | case TPACPI_FAN_WR_TPEC: | |
7304 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7305 | rc = -EIO; | |
7306 | else { | |
7307 | fan_control_desired_level = 0; | |
7308 | tp_features.fan_ctrl_status_undef = 0; | |
7309 | } | |
3ef8a609 HMH |
7310 | break; |
7311 | ||
b21a15f6 HMH |
7312 | case TPACPI_FAN_WR_ACPI_SFAN: |
7313 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7314 | rc = -EIO; | |
7315 | else | |
7316 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7317 | break; |
7318 | ||
7319 | default: | |
b21a15f6 | 7320 | rc = -ENXIO; |
78f81cc4 BD |
7321 | } |
7322 | ||
74a60c0f HMH |
7323 | if (!rc) |
7324 | vdbg_printk(TPACPI_DBG_FAN, | |
7325 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7326 | |
fe98a52c | 7327 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7328 | return rc; |
7329 | } | |
7330 | ||
b21a15f6 | 7331 | static int fan_set_speed(int speed) |
c52f0aa5 | 7332 | { |
b21a15f6 | 7333 | int rc; |
c52f0aa5 | 7334 | |
b21a15f6 HMH |
7335 | if (!fan_control_allowed) |
7336 | return -EPERM; | |
3ef8a609 | 7337 | |
7646ea88 | 7338 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7339 | return -ERESTARTSYS; |
c52f0aa5 | 7340 | |
b21a15f6 HMH |
7341 | rc = 0; |
7342 | switch (fan_control_access_mode) { | |
7343 | case TPACPI_FAN_WR_ACPI_FANS: | |
7344 | if (speed >= 0 && speed <= 65535) { | |
7345 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
7346 | speed, speed, speed)) | |
7347 | rc = -EIO; | |
7348 | } else | |
7349 | rc = -EINVAL; | |
c52f0aa5 HMH |
7350 | break; |
7351 | ||
7352 | default: | |
b21a15f6 | 7353 | rc = -ENXIO; |
c52f0aa5 HMH |
7354 | } |
7355 | ||
b21a15f6 HMH |
7356 | mutex_unlock(&fan_mutex); |
7357 | return rc; | |
16663a87 HMH |
7358 | } |
7359 | ||
7360 | static void fan_watchdog_reset(void) | |
7361 | { | |
94954cc6 | 7362 | static int fan_watchdog_active; |
16663a87 | 7363 | |
4985cd0a HMH |
7364 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
7365 | return; | |
7366 | ||
16663a87 HMH |
7367 | if (fan_watchdog_active) |
7368 | cancel_delayed_work(&fan_watchdog_task); | |
7369 | ||
8fef502e HMH |
7370 | if (fan_watchdog_maxinterval > 0 && |
7371 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 7372 | fan_watchdog_active = 1; |
e0e3c061 | 7373 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
7374 | msecs_to_jiffies(fan_watchdog_maxinterval |
7375 | * 1000))) { | |
35ff8b9f | 7376 | printk(TPACPI_ERR |
e0e3c061 | 7377 | "failed to queue the fan watchdog, " |
16663a87 HMH |
7378 | "watchdog will not trigger\n"); |
7379 | } | |
7380 | } else | |
7381 | fan_watchdog_active = 0; | |
7382 | } | |
7383 | ||
b21a15f6 | 7384 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 7385 | { |
b21a15f6 | 7386 | int rc; |
18ad7996 | 7387 | |
b21a15f6 HMH |
7388 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
7389 | return; | |
a12095c2 | 7390 | |
e0c7dfe7 | 7391 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
7392 | rc = fan_set_enable(); |
7393 | if (rc < 0) { | |
e0c7dfe7 | 7394 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
7395 | "will try again later...\n", -rc); |
7396 | /* reschedule for later */ | |
7397 | fan_watchdog_reset(); | |
7398 | } | |
7399 | } | |
eaa7571b | 7400 | |
b21a15f6 HMH |
7401 | /* |
7402 | * SYSFS fan layout: hwmon compatible (device) | |
7403 | * | |
7404 | * pwm*_enable: | |
7405 | * 0: "disengaged" mode | |
7406 | * 1: manual mode | |
7407 | * 2: native EC "auto" mode (recommended, hardware default) | |
7408 | * | |
7409 | * pwm*: set speed in manual mode, ignored otherwise. | |
7410 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
7411 | * interpolation. | |
7412 | * | |
7413 | * fan*_input: tachometer reading, RPM | |
7414 | * | |
7415 | * | |
7416 | * SYSFS fan layout: extensions | |
7417 | * | |
7418 | * fan_watchdog (driver): | |
7419 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
7420 | */ | |
7421 | ||
7422 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
7423 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
7424 | struct device_attribute *attr, | |
7425 | char *buf) | |
7426 | { | |
7427 | int res, mode; | |
7428 | u8 status; | |
7429 | ||
7430 | res = fan_get_status_safe(&status); | |
7431 | if (res) | |
7432 | return res; | |
7433 | ||
b21a15f6 HMH |
7434 | if (status & TP_EC_FAN_FULLSPEED) { |
7435 | mode = 0; | |
7436 | } else if (status & TP_EC_FAN_AUTO) { | |
7437 | mode = 2; | |
7438 | } else | |
7439 | mode = 1; | |
7440 | ||
7441 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
7442 | } | |
a12095c2 | 7443 | |
b21a15f6 HMH |
7444 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
7445 | struct device_attribute *attr, | |
7446 | const char *buf, size_t count) | |
7447 | { | |
7448 | unsigned long t; | |
7449 | int res, level; | |
7450 | ||
7451 | if (parse_strtoul(buf, 2, &t)) | |
7452 | return -EINVAL; | |
7453 | ||
74a60c0f HMH |
7454 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
7455 | "set fan mode to %lu\n", t); | |
7456 | ||
b21a15f6 HMH |
7457 | switch (t) { |
7458 | case 0: | |
7459 | level = TP_EC_FAN_FULLSPEED; | |
7460 | break; | |
7461 | case 1: | |
7462 | level = TPACPI_FAN_LAST_LEVEL; | |
7463 | break; | |
7464 | case 2: | |
7465 | level = TP_EC_FAN_AUTO; | |
7466 | break; | |
7467 | case 3: | |
7468 | /* reserved for software-controlled auto mode */ | |
7469 | return -ENOSYS; | |
18ad7996 | 7470 | default: |
b21a15f6 | 7471 | return -EINVAL; |
18ad7996 | 7472 | } |
b21a15f6 HMH |
7473 | |
7474 | res = fan_set_level_safe(level); | |
7475 | if (res == -ENXIO) | |
7476 | return -EINVAL; | |
7477 | else if (res < 0) | |
7478 | return res; | |
7479 | ||
7480 | fan_watchdog_reset(); | |
7481 | ||
7482 | return count; | |
18ad7996 HMH |
7483 | } |
7484 | ||
b21a15f6 HMH |
7485 | static struct device_attribute dev_attr_fan_pwm1_enable = |
7486 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
7487 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
7488 | ||
7489 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
7490 | static ssize_t fan_pwm1_show(struct device *dev, | |
7491 | struct device_attribute *attr, | |
7492 | char *buf) | |
fe98a52c | 7493 | { |
b21a15f6 HMH |
7494 | int res; |
7495 | u8 status; | |
fe98a52c | 7496 | |
b21a15f6 HMH |
7497 | res = fan_get_status_safe(&status); |
7498 | if (res) | |
7499 | return res; | |
ecf2a80a | 7500 | |
b21a15f6 HMH |
7501 | if ((status & |
7502 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
7503 | status = fan_control_desired_level; | |
fe98a52c | 7504 | |
b21a15f6 HMH |
7505 | if (status > 7) |
7506 | status = 7; | |
fe98a52c | 7507 | |
b21a15f6 | 7508 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
7509 | } |
7510 | ||
b21a15f6 HMH |
7511 | static ssize_t fan_pwm1_store(struct device *dev, |
7512 | struct device_attribute *attr, | |
7513 | const char *buf, size_t count) | |
18ad7996 | 7514 | { |
b21a15f6 | 7515 | unsigned long s; |
1c6a334e | 7516 | int rc; |
b21a15f6 | 7517 | u8 status, newlevel; |
1c6a334e | 7518 | |
b21a15f6 HMH |
7519 | if (parse_strtoul(buf, 255, &s)) |
7520 | return -EINVAL; | |
7521 | ||
74a60c0f HMH |
7522 | tpacpi_disclose_usertask("hwmon pwm1", |
7523 | "set fan speed to %lu\n", s); | |
7524 | ||
b21a15f6 HMH |
7525 | /* scale down from 0-255 to 0-7 */ |
7526 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 7527 | |
7646ea88 | 7528 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 7529 | return -ERESTARTSYS; |
40ca9fdf | 7530 | |
b21a15f6 HMH |
7531 | rc = fan_get_status(&status); |
7532 | if (!rc && (status & | |
7533 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7534 | rc = fan_set_level(newlevel); | |
7535 | if (rc == -ENXIO) | |
7536 | rc = -EINVAL; | |
7537 | else if (!rc) { | |
7538 | fan_update_desired_level(newlevel); | |
7539 | fan_watchdog_reset(); | |
eaa7571b | 7540 | } |
b21a15f6 | 7541 | } |
1c6a334e | 7542 | |
b21a15f6 HMH |
7543 | mutex_unlock(&fan_mutex); |
7544 | return (rc)? rc : count; | |
7545 | } | |
1c6a334e | 7546 | |
b21a15f6 HMH |
7547 | static struct device_attribute dev_attr_fan_pwm1 = |
7548 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
7549 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 7550 | |
b21a15f6 HMH |
7551 | /* sysfs fan fan1_input ------------------------------------------------ */ |
7552 | static ssize_t fan_fan1_input_show(struct device *dev, | |
7553 | struct device_attribute *attr, | |
7554 | char *buf) | |
7555 | { | |
7556 | int res; | |
7557 | unsigned int speed; | |
1c6a334e | 7558 | |
b21a15f6 HMH |
7559 | res = fan_get_speed(&speed); |
7560 | if (res < 0) | |
7561 | return res; | |
1c6a334e | 7562 | |
b21a15f6 HMH |
7563 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
7564 | } | |
18ad7996 | 7565 | |
b21a15f6 HMH |
7566 | static struct device_attribute dev_attr_fan_fan1_input = |
7567 | __ATTR(fan1_input, S_IRUGO, | |
7568 | fan_fan1_input_show, NULL); | |
40ca9fdf | 7569 | |
d7377247 HMH |
7570 | /* sysfs fan fan2_input ------------------------------------------------ */ |
7571 | static ssize_t fan_fan2_input_show(struct device *dev, | |
7572 | struct device_attribute *attr, | |
7573 | char *buf) | |
7574 | { | |
7575 | int res; | |
7576 | unsigned int speed; | |
7577 | ||
7578 | res = fan2_get_speed(&speed); | |
7579 | if (res < 0) | |
7580 | return res; | |
7581 | ||
7582 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
7583 | } | |
7584 | ||
7585 | static struct device_attribute dev_attr_fan_fan2_input = | |
7586 | __ATTR(fan2_input, S_IRUGO, | |
7587 | fan_fan2_input_show, NULL); | |
7588 | ||
b21a15f6 HMH |
7589 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
7590 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
7591 | char *buf) | |
7592 | { | |
7593 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
7594 | } |
7595 | ||
b21a15f6 HMH |
7596 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
7597 | const char *buf, size_t count) | |
18ad7996 | 7598 | { |
b21a15f6 HMH |
7599 | unsigned long t; |
7600 | ||
7601 | if (parse_strtoul(buf, 120, &t)) | |
7602 | return -EINVAL; | |
40ca9fdf | 7603 | |
ecf2a80a HMH |
7604 | if (!fan_control_allowed) |
7605 | return -EPERM; | |
7606 | ||
b21a15f6 HMH |
7607 | fan_watchdog_maxinterval = t; |
7608 | fan_watchdog_reset(); | |
40ca9fdf | 7609 | |
74a60c0f HMH |
7610 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
7611 | ||
b21a15f6 HMH |
7612 | return count; |
7613 | } | |
7614 | ||
7615 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
7616 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
7617 | ||
7618 | /* --------------------------------------------------------------------- */ | |
7619 | static struct attribute *fan_attributes[] = { | |
7620 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
7621 | &dev_attr_fan_fan1_input.attr, | |
d7377247 | 7622 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
7623 | NULL |
7624 | }; | |
7625 | ||
7626 | static const struct attribute_group fan_attr_group = { | |
7627 | .attrs = fan_attributes, | |
7628 | }; | |
7629 | ||
d7377247 HMH |
7630 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
7631 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
7632 | |
7633 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
7634 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
7635 | .bios = TPACPI_MATCH_ANY, \ | |
7636 | .ec = TPID(__id1, __id2), \ | |
7637 | .quirks = __quirks } | |
7638 | ||
d7377247 HMH |
7639 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
7640 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
7641 | .bios = TPACPI_MATCH_ANY, \ | |
7642 | .ec = TPID(__id1, __id2), \ | |
7643 | .quirks = __quirks } | |
7644 | ||
7d95a3d5 HMH |
7645 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
7646 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
7647 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
7648 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
7649 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 7650 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
7651 | }; |
7652 | ||
d7377247 | 7653 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
7654 | #undef TPACPI_FAN_QI |
7655 | ||
b21a15f6 HMH |
7656 | static int __init fan_init(struct ibm_init_struct *iibm) |
7657 | { | |
7658 | int rc; | |
7d95a3d5 | 7659 | unsigned long quirks; |
b21a15f6 | 7660 | |
74a60c0f HMH |
7661 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
7662 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
7663 | |
7664 | mutex_init(&fan_mutex); | |
7665 | fan_status_access_mode = TPACPI_FAN_NONE; | |
7666 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
7667 | fan_control_commands = 0; | |
7668 | fan_watchdog_maxinterval = 0; | |
7669 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 7670 | tp_features.second_fan = 0; |
b21a15f6 HMH |
7671 | fan_control_desired_level = 7; |
7672 | ||
e0c7dfe7 HMH |
7673 | TPACPI_ACPIHANDLE_INIT(fans); |
7674 | TPACPI_ACPIHANDLE_INIT(gfan); | |
7675 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 | 7676 | |
7d95a3d5 HMH |
7677 | quirks = tpacpi_check_quirks(fan_quirk_table, |
7678 | ARRAY_SIZE(fan_quirk_table)); | |
7679 | ||
b21a15f6 HMH |
7680 | if (gfan_handle) { |
7681 | /* 570, 600e/x, 770e, 770x */ | |
7682 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
7683 | } else { | |
7684 | /* all other ThinkPads: note that even old-style | |
7685 | * ThinkPad ECs supports the fan control register */ | |
7686 | if (likely(acpi_ec_read(fan_status_offset, | |
7687 | &fan_control_initial_status))) { | |
7688 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
7689 | if (quirks & TPACPI_FAN_Q1) |
7690 | fan_quirk1_setup(); | |
d7377247 HMH |
7691 | if (quirks & TPACPI_FAN_2FAN) { |
7692 | tp_features.second_fan = 1; | |
7693 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
7694 | "secondary fan support enabled\n"); | |
7695 | } | |
b21a15f6 | 7696 | } else { |
e0c7dfe7 | 7697 | printk(TPACPI_ERR |
b21a15f6 HMH |
7698 | "ThinkPad ACPI EC access misbehaving, " |
7699 | "fan status and control unavailable\n"); | |
7700 | return 1; | |
7701 | } | |
7702 | } | |
7703 | ||
7704 | if (sfan_handle) { | |
7705 | /* 570, 770x-JL */ | |
7706 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
7707 | fan_control_commands |= | |
7708 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
7709 | } else { | |
7710 | if (!gfan_handle) { | |
7711 | /* gfan without sfan means no fan control */ | |
7712 | /* all other models implement TP EC 0x2f control */ | |
7713 | ||
7714 | if (fans_handle) { | |
7715 | /* X31, X40, X41 */ | |
7716 | fan_control_access_mode = | |
7717 | TPACPI_FAN_WR_ACPI_FANS; | |
7718 | fan_control_commands |= | |
7719 | TPACPI_FAN_CMD_SPEED | | |
7720 | TPACPI_FAN_CMD_LEVEL | | |
7721 | TPACPI_FAN_CMD_ENABLE; | |
7722 | } else { | |
7723 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
7724 | fan_control_commands |= | |
7725 | TPACPI_FAN_CMD_LEVEL | | |
7726 | TPACPI_FAN_CMD_ENABLE; | |
7727 | } | |
fe98a52c | 7728 | } |
b21a15f6 | 7729 | } |
18ad7996 | 7730 | |
74a60c0f HMH |
7731 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
7732 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
7733 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
7734 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
7735 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 7736 | |
b21a15f6 HMH |
7737 | /* fan control master switch */ |
7738 | if (!fan_control_allowed) { | |
7739 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
7740 | fan_control_commands = 0; | |
74a60c0f | 7741 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 7742 | "fan control features disabled by parameter\n"); |
18ad7996 | 7743 | } |
40ca9fdf | 7744 | |
b21a15f6 HMH |
7745 | /* update fan_control_desired_level */ |
7746 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
7747 | fan_get_status_safe(NULL); | |
fe98a52c | 7748 | |
b21a15f6 HMH |
7749 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
7750 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
7751 | if (tp_features.second_fan) { |
7752 | /* attach second fan tachometer */ | |
7753 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
7754 | &dev_attr_fan_fan2_input.attr; | |
7755 | } | |
b21a15f6 HMH |
7756 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
7757 | &fan_attr_group); | |
b21a15f6 HMH |
7758 | if (rc < 0) |
7759 | return rc; | |
9c0a76e1 HMH |
7760 | |
7761 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
7762 | &driver_attr_fan_watchdog); | |
7763 | if (rc < 0) { | |
7764 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
7765 | &fan_attr_group); | |
7766 | return rc; | |
7767 | } | |
b21a15f6 HMH |
7768 | return 0; |
7769 | } else | |
7770 | return 1; | |
56b6aeb0 HMH |
7771 | } |
7772 | ||
b21a15f6 | 7773 | static void fan_exit(void) |
56b6aeb0 | 7774 | { |
74a60c0f | 7775 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 7776 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 7777 | |
b21a15f6 HMH |
7778 | /* FIXME: can we really do this unconditionally? */ |
7779 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
7780 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
7781 | &driver_attr_fan_watchdog); | |
40ca9fdf | 7782 | |
b21a15f6 | 7783 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 7784 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
7785 | } |
7786 | ||
75700e53 HMH |
7787 | static void fan_suspend(pm_message_t state) |
7788 | { | |
0081b162 HMH |
7789 | int rc; |
7790 | ||
75700e53 HMH |
7791 | if (!fan_control_allowed) |
7792 | return; | |
7793 | ||
7794 | /* Store fan status in cache */ | |
0081b162 HMH |
7795 | fan_control_resume_level = 0; |
7796 | rc = fan_get_status_safe(&fan_control_resume_level); | |
7797 | if (rc < 0) | |
7798 | printk(TPACPI_NOTICE | |
7799 | "failed to read fan level for later " | |
7800 | "restore during resume: %d\n", rc); | |
7801 | ||
7802 | /* if it is undefined, don't attempt to restore it. | |
7803 | * KEEP THIS LAST */ | |
75700e53 | 7804 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 7805 | fan_control_resume_level = 0; |
75700e53 HMH |
7806 | } |
7807 | ||
7808 | static void fan_resume(void) | |
7809 | { | |
75700e53 HMH |
7810 | u8 current_level = 7; |
7811 | bool do_set = false; | |
0081b162 | 7812 | int rc; |
75700e53 HMH |
7813 | |
7814 | /* DSDT *always* updates status on resume */ | |
7815 | tp_features.fan_ctrl_status_undef = 0; | |
7816 | ||
75700e53 | 7817 | if (!fan_control_allowed || |
0081b162 | 7818 | !fan_control_resume_level || |
75700e53 HMH |
7819 | (fan_get_status_safe(¤t_level) < 0)) |
7820 | return; | |
7821 | ||
7822 | switch (fan_control_access_mode) { | |
7823 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
7824 | /* never decrease fan level */ |
7825 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
7826 | break; |
7827 | case TPACPI_FAN_WR_ACPI_FANS: | |
7828 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7829 | /* never decrease fan level, scale is: |
7830 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
7831 | * | |
7832 | * We expect the firmware to set either 7 or AUTO, but we | |
7833 | * handle FULLSPEED out of paranoia. | |
7834 | * | |
7835 | * So, we can safely only restore FULLSPEED or 7, anything | |
7836 | * else could slow the fan. Restoring AUTO is useless, at | |
7837 | * best that's exactly what the DSDT already set (it is the | |
7838 | * slower it uses). | |
7839 | * | |
7840 | * Always keep in mind that the DSDT *will* have set the | |
7841 | * fans to what the vendor supposes is the best level. We | |
7842 | * muck with it only to speed the fan up. | |
7843 | */ | |
7844 | if (fan_control_resume_level != 7 && | |
7845 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
7846 | return; | |
7847 | else | |
7848 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
7849 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
7850 | break; |
7851 | default: | |
7852 | return; | |
7853 | } | |
7854 | if (do_set) { | |
7855 | printk(TPACPI_NOTICE | |
7856 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
7857 | fan_control_resume_level); |
7858 | rc = fan_set_level_safe(fan_control_resume_level); | |
7859 | if (rc < 0) | |
7860 | printk(TPACPI_NOTICE | |
7861 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
7862 | } |
7863 | } | |
7864 | ||
56b6aeb0 HMH |
7865 | static int fan_read(char *p) |
7866 | { | |
7867 | int len = 0; | |
7868 | int rc; | |
7869 | u8 status; | |
7870 | unsigned int speed = 0; | |
7871 | ||
7872 | switch (fan_status_access_mode) { | |
efa27145 | 7873 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 7874 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
7875 | rc = fan_get_status_safe(&status); |
7876 | if (rc < 0) | |
56b6aeb0 HMH |
7877 | return rc; |
7878 | ||
7879 | len += sprintf(p + len, "status:\t\t%s\n" | |
7880 | "level:\t\t%d\n", | |
7881 | (status != 0) ? "enabled" : "disabled", status); | |
7882 | break; | |
7883 | ||
efa27145 | 7884 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 7885 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
7886 | rc = fan_get_status_safe(&status); |
7887 | if (rc < 0) | |
56b6aeb0 HMH |
7888 | return rc; |
7889 | ||
56b6aeb0 HMH |
7890 | len += sprintf(p + len, "status:\t\t%s\n", |
7891 | (status != 0) ? "enabled" : "disabled"); | |
7892 | ||
35ff8b9f HMH |
7893 | rc = fan_get_speed(&speed); |
7894 | if (rc < 0) | |
56b6aeb0 HMH |
7895 | return rc; |
7896 | ||
7897 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
7898 | ||
efa27145 | 7899 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
7900 | /* Disengaged mode takes precedence */ |
7901 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 7902 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
7903 | len += sprintf(p + len, "level:\t\tauto\n"); |
7904 | else | |
7905 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
7906 | break; | |
7907 | ||
efa27145 | 7908 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
7909 | default: |
7910 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
7911 | } | |
7912 | ||
efa27145 | 7913 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
7914 | len += sprintf(p + len, "commands:\tlevel <level>"); |
7915 | ||
7916 | switch (fan_control_access_mode) { | |
efa27145 | 7917 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7918 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
7919 | break; | |
7920 | ||
7921 | default: | |
7922 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 7923 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
7924 | break; |
7925 | } | |
7926 | } | |
18ad7996 | 7927 | |
efa27145 | 7928 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 7929 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
7930 | "commands:\twatchdog <timeout> (<timeout> " |
7931 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 7932 | |
efa27145 | 7933 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
7934 | len += sprintf(p + len, "commands:\tspeed <speed>" |
7935 | " (<speed> is 0-65535)\n"); | |
7936 | ||
7937 | return len; | |
78f81cc4 BD |
7938 | } |
7939 | ||
18ad7996 HMH |
7940 | static int fan_write_cmd_level(const char *cmd, int *rc) |
7941 | { | |
7942 | int level; | |
7943 | ||
a12095c2 | 7944 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 7945 | level = TP_EC_FAN_AUTO; |
fe98a52c | 7946 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 7947 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 7948 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 7949 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
7950 | return 0; |
7951 | ||
35ff8b9f HMH |
7952 | *rc = fan_set_level_safe(level); |
7953 | if (*rc == -ENXIO) | |
e0c7dfe7 | 7954 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 | 7955 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
7956 | else if (!*rc) |
7957 | tpacpi_disclose_usertask("procfs fan", | |
7958 | "set level to %d\n", level); | |
18ad7996 HMH |
7959 | |
7960 | return 1; | |
7961 | } | |
7962 | ||
7963 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
7964 | { | |
7965 | if (strlencmp(cmd, "enable") != 0) | |
7966 | return 0; | |
7967 | ||
35ff8b9f HMH |
7968 | *rc = fan_set_enable(); |
7969 | if (*rc == -ENXIO) | |
e0c7dfe7 | 7970 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 | 7971 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
7972 | else if (!*rc) |
7973 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
7974 | |
7975 | return 1; | |
7976 | } | |
7977 | ||
7978 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
7979 | { | |
7980 | if (strlencmp(cmd, "disable") != 0) | |
7981 | return 0; | |
7982 | ||
35ff8b9f HMH |
7983 | *rc = fan_set_disable(); |
7984 | if (*rc == -ENXIO) | |
e0c7dfe7 | 7985 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 | 7986 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
7987 | else if (!*rc) |
7988 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
7989 | |
7990 | return 1; | |
7991 | } | |
7992 | ||
7993 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
7994 | { | |
7995 | int speed; | |
7996 | ||
a8b7a662 HMH |
7997 | /* TODO: |
7998 | * Support speed <low> <medium> <high> ? */ | |
7999 | ||
18ad7996 HMH |
8000 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8001 | return 0; | |
8002 | ||
35ff8b9f HMH |
8003 | *rc = fan_set_speed(speed); |
8004 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8005 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 | 8006 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8007 | else if (!*rc) |
8008 | tpacpi_disclose_usertask("procfs fan", | |
8009 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8010 | |
8011 | return 1; | |
8012 | } | |
8013 | ||
16663a87 HMH |
8014 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8015 | { | |
8016 | int interval; | |
8017 | ||
8018 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8019 | return 0; | |
8020 | ||
8021 | if (interval < 0 || interval > 120) | |
8022 | *rc = -EINVAL; | |
74a60c0f | 8023 | else { |
16663a87 | 8024 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8025 | tpacpi_disclose_usertask("procfs fan", |
8026 | "set watchdog timer to %d\n", | |
8027 | interval); | |
8028 | } | |
16663a87 HMH |
8029 | |
8030 | return 1; | |
8031 | } | |
8032 | ||
18ad7996 HMH |
8033 | static int fan_write(char *buf) |
8034 | { | |
8035 | char *cmd; | |
8036 | int rc = 0; | |
8037 | ||
8038 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8039 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8040 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8041 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8042 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8043 | fan_write_cmd_disable(cmd, &rc) || |
8044 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8045 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8046 | fan_write_cmd_speed(cmd, &rc)) |
8047 | ) | |
8048 | rc = -EINVAL; | |
16663a87 HMH |
8049 | else if (!rc) |
8050 | fan_watchdog_reset(); | |
18ad7996 HMH |
8051 | } |
8052 | ||
8053 | return rc; | |
8054 | } | |
8055 | ||
a5763f22 HMH |
8056 | static struct ibm_struct fan_driver_data = { |
8057 | .name = "fan", | |
8058 | .read = fan_read, | |
8059 | .write = fan_write, | |
8060 | .exit = fan_exit, | |
75700e53 HMH |
8061 | .suspend = fan_suspend, |
8062 | .resume = fan_resume, | |
a5763f22 HMH |
8063 | }; |
8064 | ||
56b6aeb0 HMH |
8065 | /**************************************************************************** |
8066 | **************************************************************************** | |
8067 | * | |
8068 | * Infrastructure | |
8069 | * | |
8070 | **************************************************************************** | |
8071 | ****************************************************************************/ | |
8072 | ||
8b468c0c HMH |
8073 | /* |
8074 | * HKEY event callout for other subdrivers go here | |
8075 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8076 | */ | |
8077 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8078 | { | |
347a2686 HMH |
8079 | if (ibm_backlight_device) { |
8080 | switch (hkey_event) { | |
8081 | case TP_HKEY_EV_BRGHT_UP: | |
8082 | case TP_HKEY_EV_BRGHT_DOWN: | |
8083 | tpacpi_brightness_notify_change(); | |
8084 | } | |
8085 | } | |
8b468c0c HMH |
8086 | } |
8087 | ||
8088 | ||
8089 | ||
8090 | static void hotkey_driver_event(const unsigned int scancode) | |
8091 | { | |
67bcae6e | 8092 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8093 | } |
8094 | ||
7fd40029 HMH |
8095 | /* sysfs name ---------------------------------------------------------- */ |
8096 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8097 | struct device_attribute *attr, | |
8098 | char *buf) | |
8099 | { | |
e0c7dfe7 | 8100 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8101 | } |
8102 | ||
8103 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
8104 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
8105 | ||
8106 | /* --------------------------------------------------------------------- */ | |
8107 | ||
56b6aeb0 | 8108 | /* /proc support */ |
94954cc6 | 8109 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8110 | |
56b6aeb0 HMH |
8111 | /* |
8112 | * Module and infrastructure proble, init and exit handling | |
8113 | */ | |
1da177e4 | 8114 | |
b21a15f6 HMH |
8115 | static int force_load; |
8116 | ||
fe08bc4b | 8117 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8118 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8119 | { |
a5763f22 | 8120 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8121 | |
a5763f22 | 8122 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8123 | } |
8124 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8125 | ||
b21a15f6 HMH |
8126 | static void ibm_exit(struct ibm_struct *ibm) |
8127 | { | |
8128 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8129 | ||
8130 | list_del_init(&ibm->all_drivers); | |
8131 | ||
8132 | if (ibm->flags.acpi_notify_installed) { | |
8133 | dbg_printk(TPACPI_DBG_EXIT, | |
8134 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8135 | BUG_ON(!ibm->acpi); | |
8136 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8137 | ibm->acpi->type, | |
8138 | dispatch_acpi_notify); | |
8139 | ibm->flags.acpi_notify_installed = 0; | |
8140 | ibm->flags.acpi_notify_installed = 0; | |
8141 | } | |
8142 | ||
8143 | if (ibm->flags.proc_created) { | |
8144 | dbg_printk(TPACPI_DBG_EXIT, | |
8145 | "%s: remove_proc_entry\n", ibm->name); | |
8146 | remove_proc_entry(ibm->name, proc_dir); | |
8147 | ibm->flags.proc_created = 0; | |
8148 | } | |
8149 | ||
8150 | if (ibm->flags.acpi_driver_registered) { | |
8151 | dbg_printk(TPACPI_DBG_EXIT, | |
8152 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8153 | BUG_ON(!ibm->acpi); | |
8154 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8155 | kfree(ibm->acpi->driver); | |
8156 | ibm->acpi->driver = NULL; | |
8157 | ibm->flags.acpi_driver_registered = 0; | |
8158 | } | |
8159 | ||
8160 | if (ibm->flags.init_called && ibm->exit) { | |
8161 | ibm->exit(); | |
8162 | ibm->flags.init_called = 0; | |
8163 | } | |
8164 | ||
8165 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8166 | } | |
f74a27d4 | 8167 | |
a5763f22 | 8168 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8169 | { |
8170 | int ret; | |
a5763f22 | 8171 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8172 | struct proc_dir_entry *entry; |
8173 | ||
a5763f22 HMH |
8174 | BUG_ON(ibm == NULL); |
8175 | ||
8176 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8177 | ||
92641177 | 8178 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8179 | return 0; |
8180 | ||
fe08bc4b HMH |
8181 | dbg_printk(TPACPI_DBG_INIT, |
8182 | "probing for %s\n", ibm->name); | |
8183 | ||
a5763f22 HMH |
8184 | if (iibm->init) { |
8185 | ret = iibm->init(iibm); | |
5fba344c HMH |
8186 | if (ret > 0) |
8187 | return 0; /* probe failed */ | |
8188 | if (ret) | |
1da177e4 | 8189 | return ret; |
a5763f22 | 8190 | |
92641177 | 8191 | ibm->flags.init_called = 1; |
1da177e4 LT |
8192 | } |
8193 | ||
8d376cd6 HMH |
8194 | if (ibm->acpi) { |
8195 | if (ibm->acpi->hid) { | |
8196 | ret = register_tpacpi_subdriver(ibm); | |
8197 | if (ret) | |
8198 | goto err_out; | |
8199 | } | |
5fba344c | 8200 | |
8d376cd6 HMH |
8201 | if (ibm->acpi->notify) { |
8202 | ret = setup_acpi_notify(ibm); | |
8203 | if (ret == -ENODEV) { | |
e0c7dfe7 | 8204 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
8205 | ibm->name); |
8206 | ret = 0; | |
8207 | goto err_out; | |
8208 | } | |
8209 | if (ret < 0) | |
8210 | goto err_out; | |
5fba344c | 8211 | } |
5fba344c HMH |
8212 | } |
8213 | ||
fe08bc4b HMH |
8214 | dbg_printk(TPACPI_DBG_INIT, |
8215 | "%s installed\n", ibm->name); | |
8216 | ||
78f81cc4 BD |
8217 | if (ibm->read) { |
8218 | entry = create_proc_entry(ibm->name, | |
8219 | S_IFREG | S_IRUGO | S_IWUSR, | |
8220 | proc_dir); | |
8221 | if (!entry) { | |
e0c7dfe7 | 8222 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 8223 | ibm->name); |
5fba344c HMH |
8224 | ret = -ENODEV; |
8225 | goto err_out; | |
78f81cc4 | 8226 | } |
78f81cc4 | 8227 | entry->data = ibm; |
8d376cd6 | 8228 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 8229 | if (ibm->write) |
8d376cd6 | 8230 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 8231 | ibm->flags.proc_created = 1; |
78f81cc4 | 8232 | } |
1da177e4 | 8233 | |
a5763f22 HMH |
8234 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8235 | ||
1da177e4 | 8236 | return 0; |
5fba344c HMH |
8237 | |
8238 | err_out: | |
fe08bc4b HMH |
8239 | dbg_printk(TPACPI_DBG_INIT, |
8240 | "%s: at error exit path with result %d\n", | |
8241 | ibm->name, ret); | |
8242 | ||
5fba344c HMH |
8243 | ibm_exit(ibm); |
8244 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
8245 | } |
8246 | ||
56b6aeb0 HMH |
8247 | /* Probing */ |
8248 | ||
050df107 HMH |
8249 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8250 | { | |
8251 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
8252 | } | |
8253 | ||
8254 | /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ | |
8255 | static bool __pure __init tpacpi_is_valid_fw_id(const char* const s, | |
8256 | const char t) | |
8257 | { | |
8258 | return s && strlen(s) >= 8 && | |
8259 | tpacpi_is_fw_digit(s[0]) && | |
8260 | tpacpi_is_fw_digit(s[1]) && | |
8261 | s[2] == t && s[3] == 'T' && | |
8262 | tpacpi_is_fw_digit(s[4]) && | |
8263 | tpacpi_is_fw_digit(s[5]) && | |
8264 | s[6] == 'W' && s[7] == 'W'; | |
8265 | } | |
8266 | ||
bf20e740 HMH |
8267 | /* returns 0 - probe ok, or < 0 - probe error. |
8268 | * Probe ok doesn't mean thinkpad found. | |
8269 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
8270 | static int __must_check __init get_thinkpad_model_data( | |
8271 | struct thinkpad_id_data *tp) | |
1da177e4 | 8272 | { |
1855256c | 8273 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 8274 | char ec_fw_string[18]; |
bf20e740 | 8275 | char const *s; |
1da177e4 | 8276 | |
d5a2f2f1 | 8277 | if (!tp) |
bf20e740 | 8278 | return -EINVAL; |
d5a2f2f1 HMH |
8279 | |
8280 | memset(tp, 0, sizeof(*tp)); | |
8281 | ||
8282 | if (dmi_name_in_vendors("IBM")) | |
8283 | tp->vendor = PCI_VENDOR_ID_IBM; | |
8284 | else if (dmi_name_in_vendors("LENOVO")) | |
8285 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
8286 | else | |
bf20e740 | 8287 | return 0; |
d5a2f2f1 | 8288 | |
bf20e740 HMH |
8289 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
8290 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
8291 | if (s && !tp->bios_version_str) | |
8292 | return -ENOMEM; | |
050df107 HMH |
8293 | |
8294 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
8295 | if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E')) | |
bf20e740 | 8296 | return 0; |
050df107 | 8297 | |
d5a2f2f1 HMH |
8298 | tp->bios_model = tp->bios_version_str[0] |
8299 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
8300 | tp->bios_release = (tp->bios_version_str[4] << 8) |
8301 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 8302 | |
56b6aeb0 HMH |
8303 | /* |
8304 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
8305 | * X32 or newer, all Z series; Some models must have an | |
8306 | * up-to-date BIOS or they will not be detected. | |
8307 | * | |
8308 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8309 | */ | |
8310 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
8311 | if (sscanf(dev->name, | |
8312 | "IBM ThinkPad Embedded Controller -[%17c", | |
8313 | ec_fw_string) == 1) { | |
8314 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
8315 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
8316 | |
8317 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
8318 | if (!tp->ec_version_str) |
8319 | return -ENOMEM; | |
050df107 HMH |
8320 | |
8321 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
8322 | tp->ec_model = ec_fw_string[0] | |
8323 | | (ec_fw_string[1] << 8); | |
8324 | tp->ec_release = (ec_fw_string[4] << 8) | |
8325 | | ec_fw_string[5]; | |
8326 | } else { | |
8327 | printk(TPACPI_NOTICE | |
8328 | "ThinkPad firmware release %s " | |
8329 | "doesn't match the known patterns\n", | |
8330 | ec_fw_string); | |
8331 | printk(TPACPI_NOTICE | |
8332 | "please report this to %s\n", | |
8333 | TPACPI_MAIL); | |
8334 | } | |
d5a2f2f1 | 8335 | break; |
78f81cc4 | 8336 | } |
1da177e4 | 8337 | } |
d5a2f2f1 | 8338 | |
bf20e740 HMH |
8339 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
8340 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
8341 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
8342 | if (!tp->model_str) | |
8343 | return -ENOMEM; | |
d5a2f2f1 | 8344 | } |
8c74adbc | 8345 | |
bf20e740 HMH |
8346 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
8347 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
8348 | if (s && !tp->nummodel_str) | |
8349 | return -ENOMEM; | |
8350 | ||
8351 | return 0; | |
1da177e4 LT |
8352 | } |
8353 | ||
5fba344c HMH |
8354 | static int __init probe_for_thinkpad(void) |
8355 | { | |
8356 | int is_thinkpad; | |
8357 | ||
8358 | if (acpi_disabled) | |
8359 | return -ENODEV; | |
8360 | ||
8361 | /* | |
8362 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 8363 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 8364 | */ |
e675abaf HMH |
8365 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
8366 | (thinkpad_id.ec_model != 0) || | |
8367 | tpacpi_is_fw_known(); | |
5fba344c HMH |
8368 | |
8369 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 8370 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
8371 | if (!ec_handle) { |
8372 | if (is_thinkpad) | |
e0c7dfe7 | 8373 | printk(TPACPI_ERR |
5fba344c HMH |
8374 | "Not yet supported ThinkPad detected!\n"); |
8375 | return -ENODEV; | |
8376 | } | |
8377 | ||
0dcef77c HMH |
8378 | if (!is_thinkpad && !force_load) |
8379 | return -ENODEV; | |
8380 | ||
5fba344c HMH |
8381 | return 0; |
8382 | } | |
8383 | ||
8384 | ||
56b6aeb0 | 8385 | /* Module init, exit, parameters */ |
1da177e4 | 8386 | |
a5763f22 HMH |
8387 | static struct ibm_init_struct ibms_init[] __initdata = { |
8388 | { | |
8389 | .init = thinkpad_acpi_driver_init, | |
8390 | .data = &thinkpad_acpi_driver_data, | |
8391 | }, | |
8392 | { | |
8393 | .init = hotkey_init, | |
8394 | .data = &hotkey_driver_data, | |
8395 | }, | |
8396 | { | |
8397 | .init = bluetooth_init, | |
8398 | .data = &bluetooth_driver_data, | |
8399 | }, | |
8400 | { | |
8401 | .init = wan_init, | |
8402 | .data = &wan_driver_data, | |
8403 | }, | |
0045c0aa HMH |
8404 | { |
8405 | .init = uwb_init, | |
8406 | .data = &uwb_driver_data, | |
8407 | }, | |
d7c1d17d | 8408 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
8409 | { |
8410 | .init = video_init, | |
8411 | .data = &video_driver_data, | |
8412 | }, | |
d7c1d17d | 8413 | #endif |
a5763f22 HMH |
8414 | { |
8415 | .init = light_init, | |
8416 | .data = &light_driver_data, | |
8417 | }, | |
a5763f22 HMH |
8418 | { |
8419 | .init = cmos_init, | |
8420 | .data = &cmos_driver_data, | |
8421 | }, | |
8422 | { | |
8423 | .init = led_init, | |
8424 | .data = &led_driver_data, | |
8425 | }, | |
8426 | { | |
8427 | .init = beep_init, | |
8428 | .data = &beep_driver_data, | |
8429 | }, | |
8430 | { | |
8431 | .init = thermal_init, | |
8432 | .data = &thermal_driver_data, | |
8433 | }, | |
8434 | { | |
8435 | .data = &ecdump_driver_data, | |
8436 | }, | |
8437 | { | |
8438 | .init = brightness_init, | |
8439 | .data = &brightness_driver_data, | |
8440 | }, | |
8441 | { | |
329e4e18 | 8442 | .init = volume_init, |
a5763f22 HMH |
8443 | .data = &volume_driver_data, |
8444 | }, | |
8445 | { | |
8446 | .init = fan_init, | |
8447 | .data = &fan_driver_data, | |
8448 | }, | |
8449 | }; | |
8450 | ||
3945ac36 | 8451 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
8452 | { |
8453 | unsigned int i; | |
a5763f22 | 8454 | struct ibm_struct *ibm; |
1da177e4 | 8455 | |
59f91ff1 HMH |
8456 | if (!kp || !kp->name || !val) |
8457 | return -EINVAL; | |
8458 | ||
a5763f22 HMH |
8459 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
8460 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
8461 | WARN_ON(ibm == NULL); |
8462 | ||
8463 | if (!ibm || !ibm->name) | |
8464 | continue; | |
a5763f22 HMH |
8465 | |
8466 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
8467 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 8468 | return -ENOSPC; |
a5763f22 HMH |
8469 | strcpy(ibms_init[i].param, val); |
8470 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
8471 | return 0; |
8472 | } | |
a5763f22 | 8473 | } |
1da177e4 | 8474 | |
1da177e4 LT |
8475 | return -EINVAL; |
8476 | } | |
8477 | ||
b09c7225 | 8478 | module_param(experimental, int, 0444); |
f68080f8 | 8479 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 8480 | "Enables experimental features when non-zero"); |
56b6aeb0 | 8481 | |
132ce091 | 8482 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 8483 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 8484 | |
b09c7225 | 8485 | module_param(force_load, bool, 0444); |
f68080f8 | 8486 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
8487 | "Attempts to load the driver even on a " |
8488 | "mis-identified ThinkPad when true"); | |
0dcef77c | 8489 | |
b09c7225 | 8490 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 8491 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 8492 | "Enables setting fan parameters features when true"); |
ecf2a80a | 8493 | |
b09c7225 | 8494 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 8495 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 8496 | "Selects brightness control strategy: " |
0e501834 | 8497 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 8498 | |
b09c7225 | 8499 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 8500 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 8501 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 8502 | |
b09c7225 | 8503 | module_param(hotkey_report_mode, uint, 0444); |
f68080f8 | 8504 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
8505 | "used for backwards compatibility with userspace, " |
8506 | "see documentation"); | |
ff80f137 | 8507 | |
329e4e18 HMH |
8508 | module_param_named(volume_mode, volume_mode, uint, 0444); |
8509 | MODULE_PARM_DESC(volume_mode, | |
8510 | "Selects volume control strategy: " | |
8511 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
8512 | ||
a112ceee HMH |
8513 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
8514 | MODULE_PARM_DESC(volume_capabilities, | |
8515 | "Selects the mixer capabilites: " | |
8516 | "0=auto, 1=volume and mute, 2=mute only"); | |
8517 | ||
e0c7dfe7 | 8518 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 8519 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 8520 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 8521 | "at module load, see documentation") |
1da177e4 | 8522 | |
e0c7dfe7 HMH |
8523 | TPACPI_PARAM(hotkey); |
8524 | TPACPI_PARAM(bluetooth); | |
8525 | TPACPI_PARAM(video); | |
8526 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
8527 | TPACPI_PARAM(cmos); |
8528 | TPACPI_PARAM(led); | |
8529 | TPACPI_PARAM(beep); | |
8530 | TPACPI_PARAM(ecdump); | |
8531 | TPACPI_PARAM(brightness); | |
8532 | TPACPI_PARAM(volume); | |
8533 | TPACPI_PARAM(fan); | |
78f81cc4 | 8534 | |
a73f3091 | 8535 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 8536 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
8537 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
8538 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
8539 | MODULE_PARM_DESC(wlsw_state, | |
8540 | "Initial state of the emulated WLSW switch"); | |
8541 | ||
b09c7225 | 8542 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
8543 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
8544 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
8545 | MODULE_PARM_DESC(bluetooth_state, | |
8546 | "Initial state of the emulated bluetooth switch"); | |
8547 | ||
b09c7225 | 8548 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
8549 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
8550 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
8551 | MODULE_PARM_DESC(wwan_state, | |
8552 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 8553 | |
b09c7225 | 8554 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
8555 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
8556 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
8557 | MODULE_PARM_DESC(uwb_state, | |
8558 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
8559 | #endif |
8560 | ||
b21a15f6 HMH |
8561 | static void thinkpad_acpi_module_exit(void) |
8562 | { | |
8563 | struct ibm_struct *ibm, *itmp; | |
8564 | ||
8565 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
8566 | ||
8567 | list_for_each_entry_safe_reverse(ibm, itmp, | |
8568 | &tpacpi_all_drivers, | |
8569 | all_drivers) { | |
8570 | ibm_exit(ibm); | |
8571 | } | |
8572 | ||
8573 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
8574 | ||
8575 | if (tpacpi_inputdev) { | |
8576 | if (tp_features.input_device_registered) | |
8577 | input_unregister_device(tpacpi_inputdev); | |
8578 | else | |
8579 | input_free_device(tpacpi_inputdev); | |
8580 | } | |
8581 | ||
8582 | if (tpacpi_hwmon) | |
8583 | hwmon_device_unregister(tpacpi_hwmon); | |
8584 | ||
8585 | if (tp_features.sensors_pdev_attrs_registered) | |
8586 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
8587 | &dev_attr_thinkpad_acpi_pdev_name); | |
8588 | if (tpacpi_sensors_pdev) | |
8589 | platform_device_unregister(tpacpi_sensors_pdev); | |
8590 | if (tpacpi_pdev) | |
8591 | platform_device_unregister(tpacpi_pdev); | |
8592 | ||
8593 | if (tp_features.sensors_pdrv_attrs_registered) | |
8594 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
8595 | if (tp_features.platform_drv_attrs_registered) | |
8596 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
8597 | ||
8598 | if (tp_features.sensors_pdrv_registered) | |
8599 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
8600 | ||
8601 | if (tp_features.platform_drv_registered) | |
8602 | platform_driver_unregister(&tpacpi_pdriver); | |
8603 | ||
8604 | if (proc_dir) | |
e0c7dfe7 | 8605 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 8606 | |
e0e3c061 HMH |
8607 | if (tpacpi_wq) |
8608 | destroy_workqueue(tpacpi_wq); | |
8609 | ||
b21a15f6 HMH |
8610 | kfree(thinkpad_id.bios_version_str); |
8611 | kfree(thinkpad_id.ec_version_str); | |
8612 | kfree(thinkpad_id.model_str); | |
8613 | } | |
8614 | ||
f74a27d4 | 8615 | |
1def7115 | 8616 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
8617 | { |
8618 | int ret, i; | |
8619 | ||
8fef502e HMH |
8620 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
8621 | ||
ff80f137 HMH |
8622 | /* Parameter checking */ |
8623 | if (hotkey_report_mode > 2) | |
8624 | return -EINVAL; | |
8625 | ||
54ae1501 | 8626 | /* Driver-level probe */ |
d5a2f2f1 | 8627 | |
bf20e740 HMH |
8628 | ret = get_thinkpad_model_data(&thinkpad_id); |
8629 | if (ret) { | |
8630 | printk(TPACPI_ERR | |
8631 | "unable to get DMI data: %d\n", ret); | |
8632 | thinkpad_acpi_module_exit(); | |
8633 | return ret; | |
8634 | } | |
5fba344c | 8635 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
8636 | if (ret) { |
8637 | thinkpad_acpi_module_exit(); | |
5fba344c | 8638 | return ret; |
d5a2f2f1 | 8639 | } |
1da177e4 | 8640 | |
54ae1501 | 8641 | /* Driver initialization */ |
d5a2f2f1 | 8642 | |
e0c7dfe7 HMH |
8643 | TPACPI_ACPIHANDLE_INIT(ecrd); |
8644 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 8645 | |
e0e3c061 HMH |
8646 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
8647 | if (!tpacpi_wq) { | |
8648 | thinkpad_acpi_module_exit(); | |
8649 | return -ENOMEM; | |
8650 | } | |
8651 | ||
e0c7dfe7 | 8652 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 8653 | if (!proc_dir) { |
35ff8b9f HMH |
8654 | printk(TPACPI_ERR |
8655 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 8656 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
8657 | return -ENODEV; |
8658 | } | |
78f81cc4 | 8659 | |
54ae1501 HMH |
8660 | ret = platform_driver_register(&tpacpi_pdriver); |
8661 | if (ret) { | |
35ff8b9f HMH |
8662 | printk(TPACPI_ERR |
8663 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
8664 | thinkpad_acpi_module_exit(); |
8665 | return ret; | |
8666 | } | |
ac36393d HMH |
8667 | tp_features.platform_drv_registered = 1; |
8668 | ||
7fd40029 HMH |
8669 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
8670 | if (ret) { | |
35ff8b9f HMH |
8671 | printk(TPACPI_ERR |
8672 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
8673 | thinkpad_acpi_module_exit(); |
8674 | return ret; | |
8675 | } | |
8676 | tp_features.sensors_pdrv_registered = 1; | |
8677 | ||
176750d6 | 8678 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
8679 | if (!ret) { |
8680 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
8681 | ret = tpacpi_create_driver_attributes( |
8682 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 8683 | } |
176750d6 | 8684 | if (ret) { |
35ff8b9f HMH |
8685 | printk(TPACPI_ERR |
8686 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
8687 | thinkpad_acpi_module_exit(); |
8688 | return ret; | |
8689 | } | |
2369cc94 | 8690 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 8691 | |
54ae1501 HMH |
8692 | |
8693 | /* Device initialization */ | |
e0c7dfe7 | 8694 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
8695 | NULL, 0); |
8696 | if (IS_ERR(tpacpi_pdev)) { | |
8697 | ret = PTR_ERR(tpacpi_pdev); | |
8698 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 8699 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
8700 | thinkpad_acpi_module_exit(); |
8701 | return ret; | |
8702 | } | |
7fd40029 | 8703 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
8704 | TPACPI_HWMON_DRVR_NAME, |
8705 | -1, NULL, 0); | |
7fd40029 HMH |
8706 | if (IS_ERR(tpacpi_sensors_pdev)) { |
8707 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
8708 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
8709 | printk(TPACPI_ERR |
8710 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
8711 | thinkpad_acpi_module_exit(); |
8712 | return ret; | |
8713 | } | |
8714 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
8715 | &dev_attr_thinkpad_acpi_pdev_name); | |
8716 | if (ret) { | |
e0c7dfe7 | 8717 | printk(TPACPI_ERR |
35ff8b9f | 8718 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
8719 | thinkpad_acpi_module_exit(); |
8720 | return ret; | |
8721 | } | |
8722 | tp_features.sensors_pdev_attrs_registered = 1; | |
8723 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
8724 | if (IS_ERR(tpacpi_hwmon)) { |
8725 | ret = PTR_ERR(tpacpi_hwmon); | |
8726 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 8727 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
8728 | thinkpad_acpi_module_exit(); |
8729 | return ret; | |
8730 | } | |
8523ed6f | 8731 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
8732 | tpacpi_inputdev = input_allocate_device(); |
8733 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 8734 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
8735 | thinkpad_acpi_module_exit(); |
8736 | return -ENOMEM; | |
8737 | } else { | |
8738 | /* Prepare input device, but don't register */ | |
8739 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 8740 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 8741 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
8742 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
8743 | thinkpad_id.vendor : | |
8744 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
8745 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
8746 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 8747 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 8748 | } |
a5763f22 HMH |
8749 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
8750 | ret = ibm_init(&ibms_init[i]); | |
8751 | if (ret >= 0 && *ibms_init[i].param) | |
8752 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 8753 | if (ret < 0) { |
1def7115 | 8754 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
8755 | return ret; |
8756 | } | |
8757 | } | |
7f5d1cd6 HMH |
8758 | ret = input_register_device(tpacpi_inputdev); |
8759 | if (ret < 0) { | |
e0c7dfe7 | 8760 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
8761 | thinkpad_acpi_module_exit(); |
8762 | return ret; | |
8763 | } else { | |
8764 | tp_features.input_device_registered = 1; | |
8765 | } | |
1da177e4 | 8766 | |
8fef502e | 8767 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
8768 | return 0; |
8769 | } | |
8770 | ||
95e57ab2 HMH |
8771 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
8772 | ||
922fe097 HMH |
8773 | /* |
8774 | * This will autoload the driver in almost every ThinkPad | |
8775 | * in widespread use. | |
8776 | * | |
8777 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
8778 | * the HKEY event interface. | |
8779 | */ | |
8780 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
8781 | ||
f68080f8 HMH |
8782 | /* |
8783 | * DMI matching for module autoloading | |
8784 | * | |
8785 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8786 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
8787 | * | |
8788 | * Only models listed in thinkwiki will be supported, so add yours | |
8789 | * if it is not there yet. | |
8790 | */ | |
8791 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 8792 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 8793 | |
f68080f8 HMH |
8794 | /* Ancient thinkpad BIOSes have to be identified by |
8795 | * BIOS type or model number, and there are far less | |
8796 | * BIOS types than model numbers... */ | |
922fe097 | 8797 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 8798 | |
f68f53a2 HMH |
8799 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
8800 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
8801 | MODULE_DESCRIPTION(TPACPI_DESC); |
8802 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
8803 | MODULE_LICENSE("GPL"); |
8804 | ||
1def7115 HMH |
8805 | module_init(thinkpad_acpi_module_init); |
8806 | module_exit(thinkpad_acpi_module_exit); |