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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
5d2eb14d | 24 | #define TPACPI_VERSION "0.24" |
a112ceee | 25 | #define TPACPI_SYSFS_VERSION 0x020700 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
73a94d86 | 57 | #include <linux/sched.h> |
0c78039f HMH |
58 | #include <linux/kthread.h> |
59 | #include <linux/freezer.h> | |
60 | #include <linux/delay.h> | |
61 | ||
62 | #include <linux/nvram.h> | |
63 | #include <linux/proc_fs.h> | |
887965e6 | 64 | #include <linux/seq_file.h> |
0c78039f HMH |
65 | #include <linux/sysfs.h> |
66 | #include <linux/backlight.h> | |
67 | #include <linux/fb.h> | |
68 | #include <linux/platform_device.h> | |
69 | #include <linux/hwmon.h> | |
70 | #include <linux/hwmon-sysfs.h> | |
71 | #include <linux/input.h> | |
4fa6811b | 72 | #include <linux/leds.h> |
0e74dc26 | 73 | #include <linux/rfkill.h> |
0c78039f HMH |
74 | #include <asm/uaccess.h> |
75 | ||
76 | #include <linux/dmi.h> | |
77 | #include <linux/jiffies.h> | |
78 | #include <linux/workqueue.h> | |
79 | ||
0d204c34 HMH |
80 | #include <sound/core.h> |
81 | #include <sound/control.h> | |
82 | #include <sound/initval.h> | |
83 | ||
0c78039f | 84 | #include <acpi/acpi_drivers.h> |
0c78039f HMH |
85 | |
86 | #include <linux/pci_ids.h> | |
87 | ||
0c78039f HMH |
88 | |
89 | /* ThinkPad CMOS commands */ | |
90 | #define TP_CMOS_VOLUME_DOWN 0 | |
91 | #define TP_CMOS_VOLUME_UP 1 | |
92 | #define TP_CMOS_VOLUME_MUTE 2 | |
93 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
94 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
95 | #define TP_CMOS_THINKLIGHT_ON 12 |
96 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
97 | |
98 | /* NVRAM Addresses */ | |
99 | enum tp_nvram_addr { | |
100 | TP_NVRAM_ADDR_HK2 = 0x57, | |
101 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
102 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
103 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
104 | TP_NVRAM_ADDR_MIXER = 0x60, | |
105 | }; | |
106 | ||
107 | /* NVRAM bit masks */ | |
108 | enum { | |
109 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
110 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
111 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
112 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
113 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
114 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
115 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
116 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
117 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
118 | TP_NVRAM_MASK_MUTE = 0x40, | |
119 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
120 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
121 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
122 | }; | |
123 | ||
b21a15f6 | 124 | /* ACPI HIDs */ |
e0c7dfe7 | 125 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
126 | |
127 | /* Input IDs */ | |
128 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
129 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
130 | ||
153f8220 HMH |
131 | /* ACPI \WGSV commands */ |
132 | enum { | |
133 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
134 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
135 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
136 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
137 | }; | |
138 | ||
139 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
140 | enum { | |
141 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
142 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
143 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
144 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
145 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
146 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
147 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
148 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
149 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
150 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
151 | }; | |
b21a15f6 | 152 | |
67bcae6e HMH |
153 | /* HKEY events */ |
154 | enum tpacpi_hkey_event_t { | |
155 | /* Hotkey-related */ | |
156 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
157 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
158 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
159 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
160 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
161 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
162 | ||
163 | /* Reasons for waking up from S3/S4 */ | |
164 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
165 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
166 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
167 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
168 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
169 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
170 | ||
171 | /* Auto-sleep after eject request */ | |
172 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
173 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
174 | ||
175 | /* Misc bay events */ | |
176 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
177 | ||
178 | /* User-interface events */ | |
179 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
180 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
181 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
182 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
183 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ | |
184 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
185 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
186 | ||
187 | /* Thermal events */ | |
188 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
189 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
190 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
191 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
192 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
193 | ||
194 | /* Misc */ | |
195 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
196 | }; | |
197 | ||
b21a15f6 HMH |
198 | /**************************************************************************** |
199 | * Main driver | |
200 | */ | |
201 | ||
e0c7dfe7 HMH |
202 | #define TPACPI_NAME "thinkpad" |
203 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
204 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
205 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
206 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 207 | |
e0c7dfe7 HMH |
208 | #define TPACPI_PROC_DIR "ibm" |
209 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
210 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 211 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 212 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 213 | |
95e57ab2 | 214 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 215 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 216 | |
e0c7dfe7 | 217 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 218 | |
7ff8d62f | 219 | /* printk headers */ |
e0c7dfe7 | 220 | #define TPACPI_LOG TPACPI_FILE ": " |
7ff8d62f HMH |
221 | #define TPACPI_EMERG KERN_EMERG TPACPI_LOG |
222 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG | |
223 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG | |
224 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
225 | #define TPACPI_WARN KERN_WARNING TPACPI_LOG | |
226 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
227 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
228 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
229 | ||
230 | /* Debugging printk groups */ | |
0c78039f | 231 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 232 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
233 | #define TPACPI_DBG_INIT 0x0001 |
234 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 235 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 236 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 237 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 238 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 239 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 240 | |
35ff8b9f HMH |
241 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
242 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
243 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 244 | |
0c78039f HMH |
245 | |
246 | /**************************************************************************** | |
b21a15f6 | 247 | * Driver-wide structs and misc. variables |
0c78039f HMH |
248 | */ |
249 | ||
250 | struct ibm_struct; | |
251 | ||
252 | struct tp_acpi_drv_struct { | |
253 | const struct acpi_device_id *hid; | |
254 | struct acpi_driver *driver; | |
255 | ||
256 | void (*notify) (struct ibm_struct *, u32); | |
257 | acpi_handle *handle; | |
258 | u32 type; | |
259 | struct acpi_device *device; | |
260 | }; | |
261 | ||
262 | struct ibm_struct { | |
263 | char *name; | |
264 | ||
887965e6 | 265 | int (*read) (struct seq_file *); |
0c78039f HMH |
266 | int (*write) (char *); |
267 | void (*exit) (void); | |
268 | void (*resume) (void); | |
083f1760 | 269 | void (*suspend) (pm_message_t state); |
90d9d3c7 | 270 | void (*shutdown) (void); |
0c78039f HMH |
271 | |
272 | struct list_head all_drivers; | |
273 | ||
274 | struct tp_acpi_drv_struct *acpi; | |
275 | ||
276 | struct { | |
277 | u8 acpi_driver_registered:1; | |
278 | u8 acpi_notify_installed:1; | |
279 | u8 proc_created:1; | |
280 | u8 init_called:1; | |
281 | u8 experimental:1; | |
282 | } flags; | |
283 | }; | |
284 | ||
285 | struct ibm_init_struct { | |
286 | char param[32]; | |
287 | ||
288 | int (*init) (struct ibm_init_struct *); | |
289 | struct ibm_struct *data; | |
290 | }; | |
291 | ||
292 | static struct { | |
0c78039f HMH |
293 | u32 bluetooth:1; |
294 | u32 hotkey:1; | |
295 | u32 hotkey_mask:1; | |
296 | u32 hotkey_wlsw:1; | |
6c231bd5 | 297 | u32 hotkey_tablet:1; |
0c78039f HMH |
298 | u32 light:1; |
299 | u32 light_status:1; | |
300 | u32 bright_16levels:1; | |
b5972796 | 301 | u32 bright_acpimode:1; |
0c78039f | 302 | u32 wan:1; |
0045c0aa | 303 | u32 uwb:1; |
0c78039f | 304 | u32 fan_ctrl_status_undef:1; |
d7377247 | 305 | u32 second_fan:1; |
60201732 | 306 | u32 beep_needs_two_args:1; |
a112ceee | 307 | u32 mixer_no_level_control:1; |
0c78039f HMH |
308 | u32 input_device_registered:1; |
309 | u32 platform_drv_registered:1; | |
310 | u32 platform_drv_attrs_registered:1; | |
311 | u32 sensors_pdrv_registered:1; | |
312 | u32 sensors_pdrv_attrs_registered:1; | |
313 | u32 sensors_pdev_attrs_registered:1; | |
314 | u32 hotkey_poll_active:1; | |
315 | } tp_features; | |
316 | ||
92889022 HMH |
317 | static struct { |
318 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 319 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
320 | } tp_warned; |
321 | ||
0c78039f HMH |
322 | struct thinkpad_id_data { |
323 | unsigned int vendor; /* ThinkPad vendor: | |
324 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
325 | ||
326 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
327 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
328 | ||
050df107 | 329 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 330 | u16 ec_model; |
050df107 HMH |
331 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
332 | u16 ec_release; | |
0c78039f | 333 | |
8c74adbc HMH |
334 | char *model_str; /* ThinkPad T43 */ |
335 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 336 | }; |
0c78039f HMH |
337 | static struct thinkpad_id_data thinkpad_id; |
338 | ||
8fef502e HMH |
339 | static enum { |
340 | TPACPI_LIFE_INIT = 0, | |
341 | TPACPI_LIFE_RUNNING, | |
342 | TPACPI_LIFE_EXITING, | |
343 | } tpacpi_lifecycle; | |
344 | ||
b21a15f6 HMH |
345 | static int experimental; |
346 | static u32 dbg_level; | |
347 | ||
e0e3c061 HMH |
348 | static struct workqueue_struct *tpacpi_wq; |
349 | ||
75bd3bf2 HMH |
350 | enum led_status_t { |
351 | TPACPI_LED_OFF = 0, | |
352 | TPACPI_LED_ON, | |
353 | TPACPI_LED_BLINK, | |
354 | }; | |
355 | ||
4fa6811b HMH |
356 | /* Special LED class that can defer work */ |
357 | struct tpacpi_led_classdev { | |
358 | struct led_classdev led_classdev; | |
359 | struct work_struct work; | |
75bd3bf2 | 360 | enum led_status_t new_state; |
af116101 | 361 | unsigned int led; |
4fa6811b HMH |
362 | }; |
363 | ||
a73f3091 HMH |
364 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
365 | static int dbg_wlswemul; | |
366 | static int tpacpi_wlsw_emulstate; | |
367 | static int dbg_bluetoothemul; | |
368 | static int tpacpi_bluetooth_emulstate; | |
369 | static int dbg_wwanemul; | |
370 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
371 | static int dbg_uwbemul; |
372 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
373 | #endif |
374 | ||
375 | ||
3dcc2c3b HMH |
376 | /************************************************************************* |
377 | * Debugging helpers | |
378 | */ | |
379 | ||
380 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
381 | do { if (dbg_level & (a_dbg_level)) \ | |
382 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ | |
383 | } while (0) | |
384 | ||
385 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
386 | #define vdbg_printk dbg_printk | |
387 | static const char *str_supported(int is_supported); | |
388 | #else | |
389 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
390 | do { } while (0) | |
391 | #endif | |
392 | ||
73a94d86 HMH |
393 | static void tpacpi_log_usertask(const char * const what) |
394 | { | |
395 | printk(TPACPI_DEBUG "%s: access by process with PID %d\n", | |
396 | what, task_tgid_vnr(current)); | |
397 | } | |
398 | ||
399 | #define tpacpi_disclose_usertask(what, format, arg...) \ | |
400 | do { \ | |
401 | if (unlikely( \ | |
402 | (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
403 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
404 | printk(TPACPI_DEBUG "%s: PID %d: " format, \ | |
405 | what, task_tgid_vnr(current), ## arg); \ | |
406 | } \ | |
407 | } while (0) | |
3dcc2c3b | 408 | |
7d95a3d5 HMH |
409 | /* |
410 | * Quirk handling helpers | |
411 | * | |
412 | * ThinkPad IDs and versions seen in the field so far | |
413 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
414 | * | |
415 | * We use values well outside that range as specials. | |
416 | */ | |
417 | ||
418 | #define TPACPI_MATCH_ANY 0xffffU | |
419 | #define TPACPI_MATCH_UNKNOWN 0U | |
420 | ||
421 | /* TPID('1', 'Y') == 0x5931 */ | |
422 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
423 | ||
424 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
425 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
426 | .bios = TPID(__id1, __id2), \ | |
427 | .ec = TPACPI_MATCH_ANY, \ | |
428 | .quirks = (__quirk) } | |
429 | ||
430 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
431 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
432 | .bios = TPID(__id1, __id2), \ | |
433 | .ec = TPACPI_MATCH_ANY, \ | |
434 | .quirks = (__quirk) } | |
435 | ||
a112ceee HMH |
436 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
437 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
438 | .bios = TPACPI_MATCH_ANY, \ | |
439 | .ec = TPID(__id1, __id2), \ | |
440 | .quirks = (__quirk) } | |
441 | ||
7d95a3d5 HMH |
442 | struct tpacpi_quirk { |
443 | unsigned int vendor; | |
444 | u16 bios; | |
445 | u16 ec; | |
446 | unsigned long quirks; | |
447 | }; | |
448 | ||
449 | /** | |
450 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
451 | * @qlist: array of &struct tpacpi_quirk | |
452 | * @qlist_size: number of elements in @qlist | |
453 | * | |
454 | * Iterates over a quirks list until one is found that matches the | |
455 | * ThinkPad's vendor, BIOS and EC model. | |
456 | * | |
457 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
458 | * the matching &struct tpacpi_quirk entry. | |
459 | * | |
460 | * The match criteria is: vendor, ec and bios much match. | |
461 | */ | |
462 | static unsigned long __init tpacpi_check_quirks( | |
463 | const struct tpacpi_quirk *qlist, | |
464 | unsigned int qlist_size) | |
465 | { | |
466 | while (qlist_size) { | |
467 | if ((qlist->vendor == thinkpad_id.vendor || | |
468 | qlist->vendor == TPACPI_MATCH_ANY) && | |
469 | (qlist->bios == thinkpad_id.bios_model || | |
470 | qlist->bios == TPACPI_MATCH_ANY) && | |
471 | (qlist->ec == thinkpad_id.ec_model || | |
472 | qlist->ec == TPACPI_MATCH_ANY)) | |
473 | return qlist->quirks; | |
474 | ||
475 | qlist_size--; | |
476 | qlist++; | |
477 | } | |
478 | return 0; | |
479 | } | |
480 | ||
481 | ||
56b6aeb0 HMH |
482 | /**************************************************************************** |
483 | **************************************************************************** | |
484 | * | |
485 | * ACPI Helpers and device model | |
486 | * | |
487 | **************************************************************************** | |
488 | ****************************************************************************/ | |
489 | ||
490 | /************************************************************************* | |
491 | * ACPI basic handles | |
492 | */ | |
1da177e4 | 493 | |
94954cc6 | 494 | static acpi_handle root_handle; |
1da177e4 | 495 | |
e0c7dfe7 | 496 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
497 | static acpi_handle object##_handle; \ |
498 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 499 | static char *object##_path; \ |
1da177e4 LT |
500 | static char *object##_paths[] = { paths } |
501 | ||
e0c7dfe7 | 502 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
503 | "\\_SB.PCI.ISA.EC", /* 570 */ |
504 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
505 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
506 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
507 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
508 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 509 | ); |
78f81cc4 | 510 | |
e0c7dfe7 HMH |
511 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
512 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 513 | |
35ff8b9f HMH |
514 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
515 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
516 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
517 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 518 | ); /* all others */ |
78f81cc4 | 519 | |
e0c7dfe7 | 520 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
521 | "^HKEY", /* R30, R31 */ |
522 | "HKEY", /* all others */ | |
56b6aeb0 | 523 | ); /* 570 */ |
78f81cc4 | 524 | |
d7c1d17d HMH |
525 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
526 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
527 | "\\_SB.PCI0.VID0", /* 770e */ | |
528 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
529 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
530 | ); /* R30, R31 */ | |
531 | ||
78f81cc4 | 532 | |
56b6aeb0 HMH |
533 | /************************************************************************* |
534 | * ACPI helpers | |
a8b7a662 HMH |
535 | */ |
536 | ||
1da177e4 LT |
537 | static int acpi_evalf(acpi_handle handle, |
538 | void *res, char *method, char *fmt, ...) | |
539 | { | |
540 | char *fmt0 = fmt; | |
78f81cc4 | 541 | struct acpi_object_list params; |
e0c7dfe7 | 542 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
543 | struct acpi_buffer result, *resultp; |
544 | union acpi_object out_obj; | |
545 | acpi_status status; | |
546 | va_list ap; | |
547 | char res_type; | |
548 | int success; | |
549 | int quiet; | |
1da177e4 LT |
550 | |
551 | if (!*fmt) { | |
e0c7dfe7 | 552 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
553 | return 0; |
554 | } | |
555 | ||
556 | if (*fmt == 'q') { | |
557 | quiet = 1; | |
558 | fmt++; | |
559 | } else | |
560 | quiet = 0; | |
561 | ||
562 | res_type = *(fmt++); | |
563 | ||
564 | params.count = 0; | |
565 | params.pointer = &in_objs[0]; | |
566 | ||
567 | va_start(ap, fmt); | |
568 | while (*fmt) { | |
569 | char c = *(fmt++); | |
570 | switch (c) { | |
571 | case 'd': /* int */ | |
572 | in_objs[params.count].integer.value = va_arg(ap, int); | |
573 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
574 | break; | |
78f81cc4 | 575 | /* add more types as needed */ |
1da177e4 | 576 | default: |
e0c7dfe7 | 577 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
578 | "with invalid format character '%c'\n", c); |
579 | return 0; | |
580 | } | |
581 | } | |
582 | va_end(ap); | |
583 | ||
78f81cc4 BD |
584 | if (res_type != 'v') { |
585 | result.length = sizeof(out_obj); | |
586 | result.pointer = &out_obj; | |
587 | resultp = &result; | |
588 | } else | |
589 | resultp = NULL; | |
1da177e4 | 590 | |
78f81cc4 | 591 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
592 | |
593 | switch (res_type) { | |
78f81cc4 | 594 | case 'd': /* int */ |
1da177e4 LT |
595 | if (res) |
596 | *(int *)res = out_obj.integer.value; | |
597 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
598 | break; | |
78f81cc4 | 599 | case 'v': /* void */ |
1da177e4 LT |
600 | success = status == AE_OK; |
601 | break; | |
78f81cc4 | 602 | /* add more types as needed */ |
1da177e4 | 603 | default: |
e0c7dfe7 | 604 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
605 | "with invalid format character '%c'\n", res_type); |
606 | return 0; | |
607 | } | |
608 | ||
56b6aeb0 | 609 | if (!success && !quiet) |
e0c7dfe7 | 610 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
611 | method, fmt0, status); |
612 | ||
613 | return success; | |
614 | } | |
615 | ||
35ff8b9f | 616 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
617 | { |
618 | int v; | |
619 | ||
620 | if (ecrd_handle) { | |
621 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
622 | return 0; | |
623 | *p = v; | |
624 | } else { | |
625 | if (ec_read(i, p) < 0) | |
626 | return 0; | |
627 | } | |
628 | ||
629 | return 1; | |
630 | } | |
631 | ||
632 | static int acpi_ec_write(int i, u8 v) | |
633 | { | |
634 | if (ecwr_handle) { | |
635 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
636 | return 0; | |
637 | } else { | |
638 | if (ec_write(i, v) < 0) | |
639 | return 0; | |
640 | } | |
641 | ||
642 | return 1; | |
643 | } | |
644 | ||
c9bea99c HMH |
645 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
646 | { | |
647 | if (!cmos_handle) | |
648 | return -ENXIO; | |
649 | ||
650 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
651 | return -EIO; | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
56b6aeb0 HMH |
656 | /************************************************************************* |
657 | * ACPI device model | |
658 | */ | |
659 | ||
35ff8b9f HMH |
660 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
661 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
662 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
663 | ||
8d376cd6 | 664 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
665 | acpi_handle *handle, acpi_handle parent, |
666 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
667 | { |
668 | int i; | |
669 | acpi_status status; | |
670 | ||
5ae930e6 HMH |
671 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
672 | name); | |
673 | ||
56b6aeb0 HMH |
674 | for (i = 0; i < num_paths; i++) { |
675 | status = acpi_get_handle(parent, paths[i], handle); | |
676 | if (ACPI_SUCCESS(status)) { | |
677 | *path = paths[i]; | |
5ae930e6 HMH |
678 | dbg_printk(TPACPI_DBG_INIT, |
679 | "Found ACPI handle %s for %s\n", | |
680 | *path, name); | |
56b6aeb0 HMH |
681 | return; |
682 | } | |
683 | } | |
684 | ||
5ae930e6 HMH |
685 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
686 | name); | |
56b6aeb0 HMH |
687 | *handle = NULL; |
688 | } | |
689 | ||
8d376cd6 | 690 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
691 | { |
692 | struct ibm_struct *ibm = data; | |
693 | ||
8fef502e HMH |
694 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
695 | return; | |
696 | ||
8d376cd6 | 697 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
698 | return; |
699 | ||
8d376cd6 | 700 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
701 | } |
702 | ||
8d376cd6 | 703 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
704 | { |
705 | acpi_status status; | |
5ae930e6 | 706 | int rc; |
56b6aeb0 | 707 | |
8d376cd6 HMH |
708 | BUG_ON(!ibm->acpi); |
709 | ||
710 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
711 | return 0; |
712 | ||
5ae930e6 | 713 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
714 | "setting up ACPI notify for %s\n", ibm->name); |
715 | ||
5ae930e6 HMH |
716 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
717 | if (rc < 0) { | |
e0c7dfe7 | 718 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 719 | ibm->name, rc); |
56b6aeb0 HMH |
720 | return -ENODEV; |
721 | } | |
722 | ||
db89b4f0 | 723 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 724 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 725 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 726 | ibm->name); |
56b6aeb0 | 727 | |
8d376cd6 HMH |
728 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
729 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
730 | if (ACPI_FAILURE(status)) { |
731 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
732 | printk(TPACPI_NOTICE |
733 | "another device driver is already " | |
734 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 735 | } else { |
35ff8b9f HMH |
736 | printk(TPACPI_ERR |
737 | "acpi_install_notify_handler(%s) failed: %d\n", | |
738 | ibm->name, status); | |
56b6aeb0 HMH |
739 | } |
740 | return -ENODEV; | |
741 | } | |
8d376cd6 | 742 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
743 | return 0; |
744 | } | |
745 | ||
8d376cd6 | 746 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
747 | { |
748 | return 0; | |
749 | } | |
750 | ||
6700121b | 751 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 752 | { |
5ae930e6 | 753 | int rc; |
56b6aeb0 | 754 | |
fe08bc4b HMH |
755 | dbg_printk(TPACPI_DBG_INIT, |
756 | "registering %s as an ACPI driver\n", ibm->name); | |
757 | ||
8d376cd6 HMH |
758 | BUG_ON(!ibm->acpi); |
759 | ||
760 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
761 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
762 | printk(TPACPI_ERR |
763 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 764 | return -ENOMEM; |
56b6aeb0 HMH |
765 | } |
766 | ||
e0c7dfe7 | 767 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 768 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 769 | |
8d376cd6 | 770 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 771 | |
5ae930e6 HMH |
772 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
773 | if (rc < 0) { | |
e0c7dfe7 | 774 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 775 | ibm->name, rc); |
8d376cd6 HMH |
776 | kfree(ibm->acpi->driver); |
777 | ibm->acpi->driver = NULL; | |
5ae930e6 | 778 | } else if (!rc) |
8d376cd6 | 779 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 780 | |
5ae930e6 | 781 | return rc; |
56b6aeb0 HMH |
782 | } |
783 | ||
784 | ||
785 | /**************************************************************************** | |
786 | **************************************************************************** | |
787 | * | |
788 | * Procfs Helpers | |
789 | * | |
790 | **************************************************************************** | |
791 | ****************************************************************************/ | |
792 | ||
887965e6 | 793 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 794 | { |
887965e6 | 795 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
796 | |
797 | if (!ibm || !ibm->read) | |
798 | return -EINVAL; | |
887965e6 AD |
799 | return ibm->read(m); |
800 | } | |
56b6aeb0 | 801 | |
887965e6 AD |
802 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
803 | { | |
804 | return single_open(file, dispatch_proc_show, PDE(inode)->data); | |
56b6aeb0 HMH |
805 | } |
806 | ||
887965e6 | 807 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 808 | const char __user *userbuf, |
887965e6 | 809 | size_t count, loff_t *pos) |
56b6aeb0 | 810 | { |
887965e6 | 811 | struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data; |
56b6aeb0 HMH |
812 | char *kernbuf; |
813 | int ret; | |
814 | ||
815 | if (!ibm || !ibm->write) | |
816 | return -EINVAL; | |
5b05d469 MB |
817 | if (count > PAGE_SIZE - 2) |
818 | return -EINVAL; | |
56b6aeb0 HMH |
819 | |
820 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
821 | if (!kernbuf) | |
822 | return -ENOMEM; | |
1da177e4 | 823 | |
56b6aeb0 HMH |
824 | if (copy_from_user(kernbuf, userbuf, count)) { |
825 | kfree(kernbuf); | |
826 | return -EFAULT; | |
827 | } | |
1da177e4 | 828 | |
56b6aeb0 HMH |
829 | kernbuf[count] = 0; |
830 | strcat(kernbuf, ","); | |
831 | ret = ibm->write(kernbuf); | |
832 | if (ret == 0) | |
833 | ret = count; | |
1da177e4 | 834 | |
56b6aeb0 HMH |
835 | kfree(kernbuf); |
836 | ||
837 | return ret; | |
1da177e4 LT |
838 | } |
839 | ||
887965e6 AD |
840 | static const struct file_operations dispatch_proc_fops = { |
841 | .owner = THIS_MODULE, | |
842 | .open = dispatch_proc_open, | |
843 | .read = seq_read, | |
844 | .llseek = seq_lseek, | |
845 | .release = single_release, | |
846 | .write = dispatch_proc_write, | |
847 | }; | |
848 | ||
1da177e4 LT |
849 | static char *next_cmd(char **cmds) |
850 | { | |
851 | char *start = *cmds; | |
852 | char *end; | |
853 | ||
854 | while ((end = strchr(start, ',')) && end == start) | |
855 | start = end + 1; | |
856 | ||
857 | if (!end) | |
858 | return NULL; | |
859 | ||
860 | *end = 0; | |
861 | *cmds = end + 1; | |
862 | return start; | |
863 | } | |
864 | ||
56b6aeb0 | 865 | |
54ae1501 HMH |
866 | /**************************************************************************** |
867 | **************************************************************************** | |
868 | * | |
7f5d1cd6 | 869 | * Device model: input, hwmon and platform |
54ae1501 HMH |
870 | * |
871 | **************************************************************************** | |
872 | ****************************************************************************/ | |
873 | ||
94954cc6 | 874 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 875 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 876 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 877 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 878 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 879 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 880 | |
083f1760 HMH |
881 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
882 | pm_message_t state) | |
883 | { | |
884 | struct ibm_struct *ibm, *itmp; | |
885 | ||
886 | list_for_each_entry_safe(ibm, itmp, | |
887 | &tpacpi_all_drivers, | |
888 | all_drivers) { | |
889 | if (ibm->suspend) | |
890 | (ibm->suspend)(state); | |
891 | } | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
e295e850 HMH |
896 | static int tpacpi_resume_handler(struct platform_device *pdev) |
897 | { | |
898 | struct ibm_struct *ibm, *itmp; | |
899 | ||
900 | list_for_each_entry_safe(ibm, itmp, | |
901 | &tpacpi_all_drivers, | |
902 | all_drivers) { | |
903 | if (ibm->resume) | |
904 | (ibm->resume)(); | |
905 | } | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
90d9d3c7 HMH |
910 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
911 | { | |
912 | struct ibm_struct *ibm, *itmp; | |
913 | ||
914 | list_for_each_entry_safe(ibm, itmp, | |
915 | &tpacpi_all_drivers, | |
916 | all_drivers) { | |
917 | if (ibm->shutdown) | |
918 | (ibm->shutdown)(); | |
919 | } | |
920 | } | |
921 | ||
54ae1501 HMH |
922 | static struct platform_driver tpacpi_pdriver = { |
923 | .driver = { | |
e0c7dfe7 | 924 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
925 | .owner = THIS_MODULE, |
926 | }, | |
083f1760 | 927 | .suspend = tpacpi_suspend_handler, |
e295e850 | 928 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 929 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
930 | }; |
931 | ||
7fd40029 HMH |
932 | static struct platform_driver tpacpi_hwmon_pdriver = { |
933 | .driver = { | |
e0c7dfe7 | 934 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
935 | .owner = THIS_MODULE, |
936 | }, | |
937 | }; | |
54ae1501 | 938 | |
176750d6 | 939 | /************************************************************************* |
b21a15f6 | 940 | * sysfs support helpers |
176750d6 HMH |
941 | */ |
942 | ||
b21a15f6 HMH |
943 | struct attribute_set { |
944 | unsigned int members, max_members; | |
945 | struct attribute_group group; | |
176750d6 HMH |
946 | }; |
947 | ||
7252374a HMH |
948 | struct attribute_set_obj { |
949 | struct attribute_set s; | |
950 | struct attribute *a; | |
951 | } __attribute__((packed)); | |
952 | ||
953 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 954 | const char *name) |
7252374a HMH |
955 | { |
956 | struct attribute_set_obj *sobj; | |
957 | ||
958 | if (max_members == 0) | |
959 | return NULL; | |
960 | ||
961 | /* Allocates space for implicit NULL at the end too */ | |
962 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
963 | max_members * sizeof(struct attribute *), | |
964 | GFP_KERNEL); | |
965 | if (!sobj) | |
966 | return NULL; | |
967 | sobj->s.max_members = max_members; | |
968 | sobj->s.group.attrs = &sobj->a; | |
969 | sobj->s.group.name = name; | |
970 | ||
971 | return &sobj->s; | |
972 | } | |
973 | ||
f74a27d4 HMH |
974 | #define destroy_attr_set(_set) \ |
975 | kfree(_set); | |
976 | ||
7252374a | 977 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 978 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
979 | { |
980 | if (!s || !attr) | |
981 | return -EINVAL; | |
982 | ||
983 | if (s->members >= s->max_members) | |
984 | return -ENOMEM; | |
985 | ||
986 | s->group.attrs[s->members] = attr; | |
987 | s->members++; | |
988 | ||
989 | return 0; | |
990 | } | |
991 | ||
35ff8b9f | 992 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
993 | struct attribute **attr, |
994 | unsigned int count) | |
995 | { | |
996 | int i, res; | |
997 | ||
998 | for (i = 0; i < count; i++) { | |
999 | res = add_to_attr_set(s, attr[i]); | |
1000 | if (res) | |
1001 | return res; | |
1002 | } | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
35ff8b9f | 1007 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1008 | { |
1009 | sysfs_remove_group(kobj, &s->group); | |
1010 | destroy_attr_set(s); | |
1011 | } | |
1012 | ||
f74a27d4 HMH |
1013 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1014 | sysfs_create_group(_kobj, &_attr_set->group) | |
1015 | ||
7252374a HMH |
1016 | static int parse_strtoul(const char *buf, |
1017 | unsigned long max, unsigned long *value) | |
1018 | { | |
1019 | char *endp; | |
1020 | ||
e7d2860b AGR |
1021 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1022 | endp = skip_spaces(endp); | |
7252374a HMH |
1023 | if (*endp || *value > max) |
1024 | return -EINVAL; | |
1025 | ||
1026 | return 0; | |
1027 | } | |
1028 | ||
d64c81c4 HMH |
1029 | static void tpacpi_disable_brightness_delay(void) |
1030 | { | |
1031 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
1032 | printk(TPACPI_NOTICE | |
1033 | "ACPI backlight control delay disabled\n"); | |
1034 | } | |
1035 | ||
b5972796 HMH |
1036 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
1037 | { | |
1038 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1039 | union acpi_object *obj; | |
1040 | int rc; | |
1041 | ||
1042 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
1043 | obj = (union acpi_object *)buffer.pointer; | |
1044 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
1045 | printk(TPACPI_ERR "Unknown _BCL data, " | |
1046 | "please report this to %s\n", TPACPI_MAIL); | |
1047 | rc = 0; | |
1048 | } else { | |
1049 | rc = obj->package.count; | |
1050 | } | |
1051 | } else { | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | kfree(buffer.pointer); | |
1056 | return rc; | |
1057 | } | |
1058 | ||
1059 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
1060 | u32 lvl, void *context, void **rv) | |
1061 | { | |
1062 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
1063 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
1064 | ||
1065 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
1066 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
1067 | BUG_ON(!rv || !*rv); | |
1068 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
1069 | return AE_CTRL_TERMINATE; | |
1070 | } else { | |
1071 | return AE_OK; | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | /* | |
1076 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
1077 | */ | |
1078 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
1079 | { | |
1080 | int status; | |
1081 | int bcl_levels = 0; | |
1082 | void *bcl_ptr = &bcl_levels; | |
1083 | ||
1084 | if (!vid_handle) { | |
1085 | TPACPI_ACPIHANDLE_INIT(vid); | |
1086 | } | |
1087 | if (!vid_handle) | |
1088 | return 0; | |
1089 | ||
1090 | /* | |
1091 | * Search for a _BCL method, and execute it. This is safe on all | |
1092 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
1093 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
1094 | * about calling the _BCL method in an enabled video device, any | |
1095 | * will do for our purposes. | |
1096 | */ | |
1097 | ||
1098 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
2263576c | 1099 | tpacpi_acpi_walk_find_bcl, NULL, NULL, |
b5972796 HMH |
1100 | &bcl_ptr); |
1101 | ||
1102 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
1103 | tp_features.bright_acpimode = 1; | |
1104 | return (bcl_levels - 2); | |
1105 | } | |
1106 | ||
1107 | return 0; | |
1108 | } | |
1109 | ||
19d337df JB |
1110 | static void printk_deprecated_attribute(const char * const what, |
1111 | const char * const details) | |
1112 | { | |
1113 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
1114 | printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " | |
1115 | "will be removed. %s\n", | |
1116 | what, details); | |
1117 | } | |
1118 | ||
1119 | /************************************************************************* | |
1120 | * rfkill and radio control support helpers | |
1121 | */ | |
1122 | ||
1123 | /* | |
1124 | * ThinkPad-ACPI firmware handling model: | |
1125 | * | |
1126 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1127 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1128 | * as expected. It overrides all radio state in firmware | |
1129 | * | |
1130 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1131 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1132 | * | |
1133 | * The only time there are shadow radio state changes, is when | |
1134 | * masked-off hotkeys are used. | |
1135 | */ | |
1136 | ||
1137 | /* | |
1138 | * Internal driver API for radio state: | |
1139 | * | |
1140 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1141 | * bool: true means radio blocked (off) | |
1142 | */ | |
1143 | enum tpacpi_rfkill_state { | |
1144 | TPACPI_RFK_RADIO_OFF = 0, | |
1145 | TPACPI_RFK_RADIO_ON | |
1146 | }; | |
1147 | ||
1148 | /* rfkill switches */ | |
1149 | enum tpacpi_rfk_id { | |
1150 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1151 | TPACPI_RFK_WWAN_SW_ID, | |
1152 | TPACPI_RFK_UWB_SW_ID, | |
1153 | TPACPI_RFK_SW_MAX | |
1154 | }; | |
1155 | ||
1156 | static const char *tpacpi_rfkill_names[] = { | |
1157 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1158 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1159 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1160 | [TPACPI_RFK_SW_MAX] = NULL | |
1161 | }; | |
1162 | ||
1163 | /* ThinkPad-ACPI rfkill subdriver */ | |
1164 | struct tpacpi_rfk { | |
1165 | struct rfkill *rfkill; | |
1166 | enum tpacpi_rfk_id id; | |
1167 | const struct tpacpi_rfk_ops *ops; | |
1168 | }; | |
1169 | ||
1170 | struct tpacpi_rfk_ops { | |
1171 | /* firmware interface */ | |
1172 | int (*get_status)(void); | |
1173 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1174 | }; | |
1175 | ||
1176 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1177 | ||
1178 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1179 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1180 | { | |
1181 | int status; | |
1182 | ||
1183 | if (!tp_rfk) | |
1184 | return -ENODEV; | |
1185 | ||
1186 | status = (tp_rfk->ops->get_status)(); | |
1187 | if (status < 0) | |
1188 | return status; | |
1189 | ||
1190 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1191 | (status == TPACPI_RFK_RADIO_OFF)); | |
1192 | ||
1193 | return status; | |
1194 | } | |
1195 | ||
1196 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1197 | static void tpacpi_rfk_update_swstate_all(void) | |
1198 | { | |
1199 | unsigned int i; | |
1200 | ||
1201 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1202 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1203 | } | |
1204 | ||
1205 | /* | |
1206 | * Sync the HW-blocking state of all rfkill switches, | |
1207 | * do notice it causes the rfkill core to schedule uevents | |
1208 | */ | |
1209 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1210 | { | |
1211 | unsigned int i; | |
1212 | struct tpacpi_rfk *tp_rfk; | |
1213 | ||
1214 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1215 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1216 | if (tp_rfk) { | |
1217 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1218 | blocked)) { | |
1219 | /* ignore -- we track sw block */ | |
1220 | } | |
1221 | } | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | /* Call to get the WLSW state from the firmware */ | |
1226 | static int hotkey_get_wlsw(void); | |
1227 | ||
1228 | /* Call to query WLSW state and update all rfkill switches */ | |
1229 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1230 | { | |
1231 | int res = hotkey_get_wlsw(); | |
1232 | int hw_blocked; | |
1233 | ||
1234 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1235 | if (res < 0) | |
1236 | return false; | |
1237 | ||
1238 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1239 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1240 | ||
1241 | return hw_blocked; | |
1242 | } | |
1243 | ||
1244 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1245 | { | |
1246 | struct tpacpi_rfk *tp_rfk = data; | |
1247 | int res; | |
1248 | ||
1249 | dbg_printk(TPACPI_DBG_RFKILL, | |
1250 | "request to change radio state to %s\n", | |
1251 | blocked ? "blocked" : "unblocked"); | |
1252 | ||
1253 | /* try to set radio state */ | |
1254 | res = (tp_rfk->ops->set_status)(blocked ? | |
1255 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1256 | ||
1257 | /* and update the rfkill core with whatever the FW really did */ | |
1258 | tpacpi_rfk_update_swstate(tp_rfk); | |
1259 | ||
1260 | return (res < 0) ? res : 0; | |
1261 | } | |
1262 | ||
1263 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1264 | .set_block = tpacpi_rfk_hook_set_block, | |
1265 | }; | |
1266 | ||
1267 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1268 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1269 | const enum rfkill_type rfktype, |
1270 | const char *name, | |
19d337df | 1271 | const bool set_default) |
0e74dc26 | 1272 | { |
19d337df | 1273 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1274 | int res; |
06d5caf4 | 1275 | bool sw_state = false; |
5451a923 | 1276 | bool hw_state; |
06d5caf4 | 1277 | int sw_status; |
90d9d3c7 | 1278 | |
19d337df JB |
1279 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1280 | ||
19d337df JB |
1281 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1282 | if (atp_rfk) | |
1283 | atp_rfk->rfkill = rfkill_alloc(name, | |
1284 | &tpacpi_pdev->dev, | |
1285 | rfktype, | |
1286 | &tpacpi_rfk_rfkill_ops, | |
1287 | atp_rfk); | |
1288 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0e74dc26 HMH |
1289 | printk(TPACPI_ERR |
1290 | "failed to allocate memory for rfkill class\n"); | |
19d337df | 1291 | kfree(atp_rfk); |
0e74dc26 HMH |
1292 | return -ENOMEM; |
1293 | } | |
1294 | ||
19d337df JB |
1295 | atp_rfk->id = id; |
1296 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1297 | |
06d5caf4 AJ |
1298 | sw_status = (tp_rfkops->get_status)(); |
1299 | if (sw_status < 0) { | |
b3fa1329 AJ |
1300 | printk(TPACPI_ERR |
1301 | "failed to read initial state for %s, error %d\n", | |
06d5caf4 | 1302 | name, sw_status); |
b3fa1329 | 1303 | } else { |
06d5caf4 | 1304 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1305 | if (set_default) { |
1306 | /* try to keep the initial state, since we ask the | |
1307 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1308 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1309 | } |
1310 | } | |
5451a923 HMH |
1311 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1312 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1313 | |
1314 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 HMH |
1315 | if (res < 0) { |
1316 | printk(TPACPI_ERR | |
1317 | "failed to register %s rfkill switch: %d\n", | |
1318 | name, res); | |
19d337df JB |
1319 | rfkill_destroy(atp_rfk->rfkill); |
1320 | kfree(atp_rfk); | |
0e74dc26 HMH |
1321 | return res; |
1322 | } | |
1323 | ||
19d337df | 1324 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 HMH |
1325 | |
1326 | printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", | |
1327 | name, (sw_state || hw_state) ? "" : "un"); | |
0e74dc26 HMH |
1328 | return 0; |
1329 | } | |
1330 | ||
19d337df | 1331 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1332 | { |
19d337df JB |
1333 | struct tpacpi_rfk *tp_rfk; |
1334 | ||
1335 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1336 | ||
1337 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1338 | if (tp_rfk) { | |
1339 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1340 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1341 | tpacpi_rfkill_switches[id] = NULL; |
1342 | kfree(tp_rfk); | |
1343 | } | |
73a94d86 HMH |
1344 | } |
1345 | ||
1346 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1347 | { | |
1348 | printk_deprecated_attribute(what, | |
1349 | "Please switch to generic rfkill before year 2010"); | |
1350 | } | |
1351 | ||
19d337df JB |
1352 | /* sysfs <radio> enable ------------------------------------------------ */ |
1353 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1354 | struct device_attribute *attr, | |
1355 | char *buf) | |
1356 | { | |
1357 | int status; | |
1358 | ||
1359 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1360 | ||
1361 | /* This is in the ABI... */ | |
1362 | if (tpacpi_rfk_check_hwblock_state()) { | |
1363 | status = TPACPI_RFK_RADIO_OFF; | |
1364 | } else { | |
1365 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1366 | if (status < 0) | |
1367 | return status; | |
1368 | } | |
1369 | ||
1370 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1371 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1372 | } | |
1373 | ||
1374 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1375 | struct device_attribute *attr, | |
1376 | const char *buf, size_t count) | |
1377 | { | |
1378 | unsigned long t; | |
1379 | int res; | |
1380 | ||
1381 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1382 | ||
1383 | if (parse_strtoul(buf, 1, &t)) | |
1384 | return -EINVAL; | |
1385 | ||
1386 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1387 | ||
1388 | /* This is in the ABI... */ | |
1389 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1390 | return -EPERM; | |
1391 | ||
1392 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1393 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1394 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1395 | ||
1396 | return (res < 0) ? res : count; | |
1397 | } | |
1398 | ||
1399 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1400 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1401 | { |
19d337df | 1402 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1403 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1404 | else { |
1405 | int status; | |
1406 | ||
1407 | /* This is in the ABI... */ | |
1408 | if (tpacpi_rfk_check_hwblock_state()) { | |
1409 | status = TPACPI_RFK_RADIO_OFF; | |
1410 | } else { | |
1411 | status = tpacpi_rfk_update_swstate( | |
1412 | tpacpi_rfkill_switches[id]); | |
1413 | if (status < 0) | |
1414 | return status; | |
1415 | } | |
1416 | ||
887965e6 | 1417 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1418 | (status == TPACPI_RFK_RADIO_ON) ? |
1419 | "enabled" : "disabled"); | |
887965e6 | 1420 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1421 | } |
1422 | ||
887965e6 | 1423 | return 0; |
19d337df JB |
1424 | } |
1425 | ||
1426 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1427 | { | |
1428 | char *cmd; | |
1429 | int status = -1; | |
1430 | int res = 0; | |
1431 | ||
1432 | if (id >= TPACPI_RFK_SW_MAX) | |
1433 | return -ENODEV; | |
1434 | ||
1435 | while ((cmd = next_cmd(&buf))) { | |
1436 | if (strlencmp(cmd, "enable") == 0) | |
1437 | status = TPACPI_RFK_RADIO_ON; | |
1438 | else if (strlencmp(cmd, "disable") == 0) | |
1439 | status = TPACPI_RFK_RADIO_OFF; | |
1440 | else | |
1441 | return -EINVAL; | |
1442 | } | |
1443 | ||
1444 | if (status != -1) { | |
1445 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1446 | (status == TPACPI_RFK_RADIO_ON) ? | |
1447 | "enable" : "disable", | |
1448 | tpacpi_rfkill_names[id]); | |
1449 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1450 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1451 | } | |
1452 | ||
1453 | return res; | |
1454 | } | |
1455 | ||
56b6aeb0 | 1456 | /************************************************************************* |
b21a15f6 | 1457 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1458 | */ |
1459 | ||
b21a15f6 HMH |
1460 | /* interface_version --------------------------------------------------- */ |
1461 | static ssize_t tpacpi_driver_interface_version_show( | |
1462 | struct device_driver *drv, | |
1463 | char *buf) | |
1da177e4 | 1464 | { |
b21a15f6 HMH |
1465 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1466 | } | |
1467 | ||
1468 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1469 | tpacpi_driver_interface_version_show, NULL); | |
1470 | ||
1471 | /* debug_level --------------------------------------------------------- */ | |
1472 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1473 | char *buf) | |
1474 | { | |
1475 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1476 | } | |
1477 | ||
1478 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1479 | const char *buf, size_t count) | |
1480 | { | |
1481 | unsigned long t; | |
1482 | ||
1483 | if (parse_strtoul(buf, 0xffff, &t)) | |
1484 | return -EINVAL; | |
1485 | ||
1486 | dbg_level = t; | |
1487 | ||
1488 | return count; | |
1489 | } | |
1490 | ||
1491 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1492 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1493 | ||
1494 | /* version ------------------------------------------------------------- */ | |
1495 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1496 | char *buf) | |
1497 | { | |
35ff8b9f HMH |
1498 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1499 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1500 | } |
1501 | ||
1502 | static DRIVER_ATTR(version, S_IRUGO, | |
1503 | tpacpi_driver_version_show, NULL); | |
1504 | ||
1505 | /* --------------------------------------------------------------------- */ | |
1506 | ||
a73f3091 HMH |
1507 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1508 | ||
a73f3091 HMH |
1509 | /* wlsw_emulstate ------------------------------------------------------ */ |
1510 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1511 | char *buf) | |
1512 | { | |
1513 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1514 | } | |
1515 | ||
1516 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1517 | const char *buf, size_t count) | |
1518 | { | |
1519 | unsigned long t; | |
1520 | ||
1521 | if (parse_strtoul(buf, 1, &t)) | |
1522 | return -EINVAL; | |
1523 | ||
19d337df | 1524 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1525 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1526 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1527 | } | |
a73f3091 HMH |
1528 | |
1529 | return count; | |
1530 | } | |
1531 | ||
1532 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1533 | tpacpi_driver_wlsw_emulstate_show, | |
1534 | tpacpi_driver_wlsw_emulstate_store); | |
1535 | ||
1536 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1537 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1538 | struct device_driver *drv, | |
1539 | char *buf) | |
1540 | { | |
1541 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1542 | } | |
1543 | ||
1544 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1545 | struct device_driver *drv, | |
1546 | const char *buf, size_t count) | |
1547 | { | |
1548 | unsigned long t; | |
1549 | ||
1550 | if (parse_strtoul(buf, 1, &t)) | |
1551 | return -EINVAL; | |
1552 | ||
1553 | tpacpi_bluetooth_emulstate = !!t; | |
1554 | ||
1555 | return count; | |
1556 | } | |
1557 | ||
1558 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1559 | tpacpi_driver_bluetooth_emulstate_show, | |
1560 | tpacpi_driver_bluetooth_emulstate_store); | |
1561 | ||
1562 | /* wwan_emulstate ------------------------------------------------- */ | |
1563 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1564 | struct device_driver *drv, | |
1565 | char *buf) | |
1566 | { | |
1567 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1568 | } | |
1569 | ||
1570 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1571 | struct device_driver *drv, | |
1572 | const char *buf, size_t count) | |
1573 | { | |
1574 | unsigned long t; | |
1575 | ||
1576 | if (parse_strtoul(buf, 1, &t)) | |
1577 | return -EINVAL; | |
1578 | ||
1579 | tpacpi_wwan_emulstate = !!t; | |
1580 | ||
1581 | return count; | |
1582 | } | |
1583 | ||
1584 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1585 | tpacpi_driver_wwan_emulstate_show, | |
1586 | tpacpi_driver_wwan_emulstate_store); | |
1587 | ||
0045c0aa HMH |
1588 | /* uwb_emulstate ------------------------------------------------- */ |
1589 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1590 | struct device_driver *drv, | |
1591 | char *buf) | |
1592 | { | |
1593 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1594 | } | |
1595 | ||
1596 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1597 | struct device_driver *drv, | |
1598 | const char *buf, size_t count) | |
1599 | { | |
1600 | unsigned long t; | |
1601 | ||
1602 | if (parse_strtoul(buf, 1, &t)) | |
1603 | return -EINVAL; | |
1604 | ||
1605 | tpacpi_uwb_emulstate = !!t; | |
1606 | ||
1607 | return count; | |
1608 | } | |
1609 | ||
1610 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1611 | tpacpi_driver_uwb_emulstate_show, | |
1612 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1613 | #endif |
1614 | ||
1615 | /* --------------------------------------------------------------------- */ | |
1616 | ||
35ff8b9f | 1617 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1618 | &driver_attr_debug_level, &driver_attr_version, |
1619 | &driver_attr_interface_version, | |
1620 | }; | |
1621 | ||
1622 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1623 | { | |
1624 | int i, res; | |
1625 | ||
1626 | i = 0; | |
1627 | res = 0; | |
1628 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1629 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1630 | i++; | |
1631 | } | |
1632 | ||
a73f3091 HMH |
1633 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1634 | if (!res && dbg_wlswemul) | |
1635 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1636 | if (!res && dbg_bluetoothemul) | |
1637 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1638 | if (!res && dbg_wwanemul) | |
1639 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1640 | if (!res && dbg_uwbemul) |
1641 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1642 | #endif |
1643 | ||
b21a15f6 HMH |
1644 | return res; |
1645 | } | |
1646 | ||
1647 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1648 | { | |
1649 | int i; | |
1650 | ||
35ff8b9f | 1651 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1652 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1653 | |
1654 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1655 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1656 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1657 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1658 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1659 | #endif |
b21a15f6 HMH |
1660 | } |
1661 | ||
600a99fa HMH |
1662 | /************************************************************************* |
1663 | * Firmware Data | |
1664 | */ | |
1665 | ||
1666 | /* | |
1667 | * Table of recommended minimum BIOS versions | |
1668 | * | |
1669 | * Reasons for listing: | |
1670 | * 1. Stable BIOS, listed because the unknown ammount of | |
1671 | * bugs and bad ACPI behaviour on older versions | |
1672 | * | |
1673 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1674 | * | |
1675 | * 3. BIOS with known reduced functionality in older versions | |
1676 | * | |
1677 | * We recommend the latest BIOS and EC version. | |
1678 | * We only support the latest BIOS and EC fw version as a rule. | |
1679 | * | |
1680 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1681 | * Information from users in ThinkWiki | |
e675abaf HMH |
1682 | * |
1683 | * WARNING: we use this table also to detect that the machine is | |
1684 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1685 | */ |
1686 | ||
1687 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1688 | { .vendor = (__v), \ | |
1689 | .bios = TPID(__id1, __id2), \ | |
1690 | .ec = TPACPI_MATCH_ANY, \ | |
1691 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1692 | | (__bv1) << 8 | (__bv2) } | |
1693 | ||
1694 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1695 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1696 | { .vendor = (__v), \ |
1697 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1698 | .ec = __eid, \ |
600a99fa HMH |
1699 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1700 | | (__bv1) << 8 | (__bv2) } | |
1701 | ||
1702 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1703 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1704 | ||
275014ae | 1705 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1706 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1707 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1708 | __bv1, __bv2, TPID(__id1, __id2), \ |
1709 | __ev1, __ev2), \ | |
1710 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1711 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1712 | __ev1, __ev2) | |
600a99fa | 1713 | |
275014ae | 1714 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1715 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1716 | __eid1, __eid2, __ev1, __ev2) \ | |
1717 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1718 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1719 | __ev1, __ev2), \ | |
1720 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1721 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1722 | __ev1, __ev2) | |
600a99fa HMH |
1723 | |
1724 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1725 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1726 | ||
1727 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1728 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1729 | __bv1, __bv2, TPID(__id1, __id2), \ |
1730 | __ev1, __ev2) | |
600a99fa HMH |
1731 | |
1732 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1733 | __eid1, __eid2, __ev1, __ev2) \ | |
1734 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1735 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1736 | __ev1, __ev2) | |
600a99fa HMH |
1737 | |
1738 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1739 | /* Numeric models ------------------ */ | |
1740 | /* FW MODEL BIOS VERS */ | |
1741 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1742 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1743 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1744 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1745 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1746 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1747 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1748 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1749 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1750 | ||
1751 | /* A-series ------------------------- */ | |
1752 | /* FW MODEL BIOS VERS EC VERS */ | |
1753 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1754 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1755 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1756 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1757 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1758 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1759 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1760 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1761 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1762 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1763 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1764 | ||
1765 | /* G-series ------------------------- */ | |
1766 | /* FW MODEL BIOS VERS */ | |
1767 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1768 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1769 | ||
1770 | /* R-series, T-series --------------- */ | |
1771 | /* FW MODEL BIOS VERS EC VERS */ | |
1772 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1773 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1774 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1775 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1776 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1777 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1778 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1779 | T40/p, T41/p, T42/p (1) */ | |
1780 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1781 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1782 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1783 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1784 | ||
1785 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1786 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1787 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1788 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1789 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1790 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1791 | ||
1792 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1793 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1794 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1795 | |
1796 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1797 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1798 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1799 | ||
1800 | /* X-series ------------------------- */ | |
1801 | /* FW MODEL BIOS VERS EC VERS */ | |
1802 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1803 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1804 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1805 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1806 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1807 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1808 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1809 | ||
90765c6a HMH |
1810 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1811 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1812 | |
1813 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1814 | /* (1) - older versions known to lack functionality */ | |
1815 | }; | |
1816 | ||
1817 | #undef TPV_QL1 | |
1818 | #undef TPV_QL0 | |
1819 | #undef TPV_QI2 | |
1820 | #undef TPV_QI1 | |
1821 | #undef TPV_QI0 | |
1822 | #undef TPV_Q_X | |
1823 | #undef TPV_Q | |
1824 | ||
1825 | static void __init tpacpi_check_outdated_fw(void) | |
1826 | { | |
1827 | unsigned long fwvers; | |
1828 | u16 ec_version, bios_version; | |
1829 | ||
1830 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1831 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1832 | ||
1833 | if (!fwvers) | |
1834 | return; | |
1835 | ||
1836 | bios_version = fwvers & 0xffffU; | |
1837 | ec_version = (fwvers >> 16) & 0xffffU; | |
1838 | ||
1839 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1840 | if ((bios_version > thinkpad_id.bios_release) || | |
1841 | (ec_version > thinkpad_id.ec_release && | |
1842 | ec_version != TPACPI_MATCH_ANY)) { | |
1843 | /* | |
1844 | * The changelogs would let us track down the exact | |
1845 | * reason, but it is just too much of a pain to track | |
1846 | * it. We only list BIOSes that are either really | |
1847 | * broken, or really stable to begin with, so it is | |
1848 | * best if the user upgrades the firmware anyway. | |
1849 | */ | |
1850 | printk(TPACPI_WARN | |
1851 | "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); | |
1852 | printk(TPACPI_WARN | |
1853 | "WARNING: This firmware may be missing critical bug " | |
1854 | "fixes and/or important features\n"); | |
1855 | } | |
1856 | } | |
1857 | ||
e675abaf HMH |
1858 | static bool __init tpacpi_is_fw_known(void) |
1859 | { | |
1860 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1861 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1862 | } | |
1863 | ||
b21a15f6 HMH |
1864 | /**************************************************************************** |
1865 | **************************************************************************** | |
1866 | * | |
1867 | * Subdrivers | |
1868 | * | |
1869 | **************************************************************************** | |
1870 | ****************************************************************************/ | |
1871 | ||
1872 | /************************************************************************* | |
1873 | * thinkpad-acpi init subdriver | |
1874 | */ | |
1875 | ||
1876 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1877 | { | |
e0c7dfe7 HMH |
1878 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1879 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1880 | |
e0c7dfe7 | 1881 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1882 | (thinkpad_id.bios_version_str) ? |
1883 | thinkpad_id.bios_version_str : "unknown", | |
1884 | (thinkpad_id.ec_version_str) ? | |
1885 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1886 | |
1887 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1888 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1889 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1890 | "IBM" : ((thinkpad_id.vendor == | |
1891 | PCI_VENDOR_ID_LENOVO) ? | |
1892 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1893 | thinkpad_id.model_str, |
1894 | (thinkpad_id.nummodel_str) ? | |
1895 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1896 | |
600a99fa | 1897 | tpacpi_check_outdated_fw(); |
1da177e4 LT |
1898 | return 0; |
1899 | } | |
1900 | ||
887965e6 | 1901 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1902 | { |
887965e6 AD |
1903 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1904 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1905 | return 0; | |
1da177e4 LT |
1906 | } |
1907 | ||
a5763f22 HMH |
1908 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1909 | .name = "driver", | |
1910 | .read = thinkpad_acpi_driver_read, | |
1911 | }; | |
1912 | ||
56b6aeb0 HMH |
1913 | /************************************************************************* |
1914 | * Hotkey subdriver | |
1915 | */ | |
1916 | ||
0d922e3b HMH |
1917 | /* |
1918 | * ThinkPad firmware event model | |
1919 | * | |
1920 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1921 | * notifications (which follow the ACPI standard), and a private event | |
1922 | * interface. | |
1923 | * | |
1924 | * The private event interface also issues events for the hotkeys. As | |
1925 | * the driver gained features, the event handling code ended up being | |
1926 | * built around the hotkey subdriver. This will need to be refactored | |
1927 | * to a more formal event API eventually. | |
1928 | * | |
1929 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1930 | * such as "brightness has changed", "volume has changed", depending on | |
1931 | * the ThinkPad model and how the firmware is operating. | |
1932 | * | |
1933 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1934 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1935 | * firmware model and version. | |
1936 | */ | |
1937 | ||
f74a27d4 HMH |
1938 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1939 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1940 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1941 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1942 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1943 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1944 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1945 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1946 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1947 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1948 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1949 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1950 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1951 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1952 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1953 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1954 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1955 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1956 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1957 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1958 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1959 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1960 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1961 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1962 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1963 | }; | |
1964 | ||
0d922e3b | 1965 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1966 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1967 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1968 | }; | |
1969 | ||
1970 | enum { /* Positions of some of the keys in hotkey masks */ | |
1971 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1972 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1973 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1974 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1975 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1976 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1977 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1978 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1979 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1980 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1981 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1982 | }; | |
1983 | ||
1984 | enum { /* NVRAM to ACPI HKEY group map */ | |
1985 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1986 | TP_ACPI_HKEY_ZOOM_MASK | | |
1987 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1988 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1989 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1990 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1991 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1992 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1993 | TP_ACPI_HKEY_MUTE_MASK, | |
1994 | }; | |
1995 | ||
1996 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1997 | struct tp_nvram_state { | |
1998 | u16 thinkpad_toggle:1; | |
1999 | u16 zoom_toggle:1; | |
2000 | u16 display_toggle:1; | |
2001 | u16 thinklight_toggle:1; | |
2002 | u16 hibernate_toggle:1; | |
2003 | u16 displayexp_toggle:1; | |
2004 | u16 display_state:1; | |
2005 | u16 brightness_toggle:1; | |
2006 | u16 volume_toggle:1; | |
2007 | u16 mute:1; | |
2008 | ||
2009 | u8 brightness_level; | |
2010 | u8 volume_level; | |
2011 | }; | |
2012 | ||
db25f16d | 2013 | /* kthread for the hotkey poller */ |
01e88f25 | 2014 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d HMH |
2015 | |
2016 | /* Acquired while the poller kthread is running, use to sync start/stop */ | |
01e88f25 | 2017 | static struct mutex hotkey_thread_mutex; |
db25f16d HMH |
2018 | |
2019 | /* | |
0d922e3b HMH |
2020 | * Acquire mutex to write poller control variables as an |
2021 | * atomic block. | |
2022 | * | |
2023 | * Increment hotkey_config_change when changing them if you | |
2024 | * want the kthread to forget old state. | |
db25f16d HMH |
2025 | * |
2026 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2027 | */ | |
01e88f25 HMH |
2028 | static struct mutex hotkey_thread_data_mutex; |
2029 | static unsigned int hotkey_config_change; | |
2030 | ||
db25f16d HMH |
2031 | /* |
2032 | * hotkey poller control variables | |
2033 | * | |
2034 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2035 | * |
2036 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2037 | * should be used only when the changes need to be taken as | |
2038 | * a block, OR when one needs to force the kthread to forget | |
2039 | * old state. | |
db25f16d HMH |
2040 | */ |
2041 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2042 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2043 | ||
2044 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2045 | do { \ | |
2046 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2047 | hotkey_config_change++; \ | |
2048 | } while (0); | |
2049 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2050 | mutex_unlock(&hotkey_thread_data_mutex); | |
2051 | ||
01e88f25 HMH |
2052 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2053 | ||
2054 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2055 | #define HOTKEY_CONFIG_CRITICAL_START |
2056 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2057 | |
2058 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2059 | ||
f74a27d4 HMH |
2060 | static struct mutex hotkey_mutex; |
2061 | ||
a713b4d7 HMH |
2062 | static enum { /* Reasons for waking up */ |
2063 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2064 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2065 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2066 | } hotkey_wakeup_reason; | |
2067 | ||
2068 | static int hotkey_autosleep_ack; | |
2069 | ||
0d922e3b HMH |
2070 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2071 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2072 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2073 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2074 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2075 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2076 | |
b21a15f6 HMH |
2077 | static unsigned int hotkey_report_mode; |
2078 | ||
edf0e0e5 | 2079 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2080 | |
94954cc6 | 2081 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2082 | |
8b468c0c HMH |
2083 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2084 | static void hotkey_driver_event(const unsigned int scancode); | |
2085 | ||
6c231bd5 HMH |
2086 | /* HKEY.MHKG() return bits */ |
2087 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2088 | ||
19d337df | 2089 | static int hotkey_get_wlsw(void) |
74941a69 | 2090 | { |
19d337df JB |
2091 | int status; |
2092 | ||
2093 | if (!tp_features.hotkey_wlsw) | |
2094 | return -ENODEV; | |
2095 | ||
a73f3091 | 2096 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2097 | if (dbg_wlswemul) |
2098 | return (tpacpi_wlsw_emulstate) ? | |
2099 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2100 | #endif |
19d337df JB |
2101 | |
2102 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2103 | return -EIO; |
19d337df JB |
2104 | |
2105 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2106 | } |
2107 | ||
6c231bd5 HMH |
2108 | static int hotkey_get_tablet_mode(int *status) |
2109 | { | |
2110 | int s; | |
2111 | ||
2112 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2113 | return -EIO; | |
2114 | ||
cee47f5a HMH |
2115 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2116 | return 0; | |
6c231bd5 HMH |
2117 | } |
2118 | ||
b2c985e7 | 2119 | /* |
0d922e3b HMH |
2120 | * Reads current event mask from firmware, and updates |
2121 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2122 | * from hotkey_user_mask that are unavailable to be | |
2123 | * delivered (shadow requirement of the userspace ABI). | |
2124 | * | |
b2c985e7 HMH |
2125 | * Call with hotkey_mutex held |
2126 | */ | |
2127 | static int hotkey_mask_get(void) | |
2128 | { | |
2129 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2130 | u32 m = 0; |
2131 | ||
01e88f25 | 2132 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2133 | return -EIO; |
0d922e3b HMH |
2134 | |
2135 | hotkey_acpi_mask = m; | |
2136 | } else { | |
2137 | /* no mask support doesn't mean no event support... */ | |
2138 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2139 | } |
0d922e3b HMH |
2140 | |
2141 | /* sync userspace-visible mask */ | |
2142 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2143 | |
2144 | return 0; | |
2145 | } | |
2146 | ||
0d922e3b HMH |
2147 | void static hotkey_mask_warn_incomplete_mask(void) |
2148 | { | |
2149 | /* log only what the user can fix... */ | |
2150 | const u32 wantedmask = hotkey_driver_mask & | |
2151 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2152 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2153 | ||
2154 | if (wantedmask) | |
2155 | printk(TPACPI_NOTICE | |
2156 | "required events 0x%08x not enabled!\n", | |
2157 | wantedmask); | |
2158 | } | |
2159 | ||
b2c985e7 | 2160 | /* |
0d922e3b HMH |
2161 | * Set the firmware mask when supported |
2162 | * | |
2163 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2164 | * | |
2165 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2166 | * | |
b2c985e7 HMH |
2167 | * Call with hotkey_mutex held |
2168 | */ | |
2169 | static int hotkey_mask_set(u32 mask) | |
2170 | { | |
2171 | int i; | |
2172 | int rc = 0; | |
2173 | ||
0d922e3b | 2174 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2175 | |
0d922e3b | 2176 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2177 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2178 | if (!acpi_evalf(hkey_handle, |
2179 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2180 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2181 | rc = -EIO; |
2182 | break; | |
b2c985e7 HMH |
2183 | } |
2184 | } | |
0d922e3b | 2185 | } |
b2c985e7 | 2186 | |
0d922e3b HMH |
2187 | /* |
2188 | * We *must* make an inconditional call to hotkey_mask_get to | |
2189 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2190 | * | |
2191 | * Take the opportunity to also log when we cannot _enable_ | |
2192 | * a given event. | |
2193 | */ | |
2194 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
2195 | printk(TPACPI_NOTICE | |
2196 | "asked for hotkey mask 0x%08x, but " | |
2197 | "firmware forced it to 0x%08x\n", | |
2198 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2199 | } |
2200 | ||
6b30eb7d HMH |
2201 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2202 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2203 | |
2204 | return rc; | |
2205 | } | |
2206 | ||
2207 | /* | |
2208 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2209 | * | |
2210 | * Call with hotkey_mutex held | |
2211 | */ | |
2212 | static int hotkey_user_mask_set(const u32 mask) | |
2213 | { | |
2214 | int rc; | |
2215 | ||
2216 | /* Give people a chance to notice they are doing something that | |
2217 | * is bound to go boom on their users sooner or later */ | |
2218 | if (!tp_warned.hotkey_mask_ff && | |
2219 | (mask == 0xffff || mask == 0xffffff || | |
2220 | mask == 0xffffffff)) { | |
2221 | tp_warned.hotkey_mask_ff = 1; | |
2222 | printk(TPACPI_NOTICE | |
2223 | "setting the hotkey mask to 0x%08x is likely " | |
2224 | "not the best way to go about it\n", mask); | |
2225 | printk(TPACPI_NOTICE | |
2226 | "please consider using the driver defaults, " | |
2227 | "and refer to up-to-date thinkpad-acpi " | |
2228 | "documentation\n"); | |
2229 | } | |
2230 | ||
2231 | /* Try to enable what the user asked for, plus whatever we need. | |
2232 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2233 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2234 | ||
2235 | /* Enable the available bits in hotkey_user_mask */ | |
2236 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2237 | ||
b2c985e7 HMH |
2238 | return rc; |
2239 | } | |
2240 | ||
8b468c0c HMH |
2241 | /* |
2242 | * Sets the driver hotkey mask. | |
2243 | * | |
2244 | * Can be called even if the hotkey subdriver is inactive | |
2245 | */ | |
2246 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2247 | { | |
2248 | int rc; | |
2249 | ||
2250 | /* Do the right thing if hotkey_init has not been called yet */ | |
2251 | if (!tp_features.hotkey) { | |
2252 | hotkey_driver_mask = mask; | |
2253 | return 0; | |
2254 | } | |
2255 | ||
2256 | mutex_lock(&hotkey_mutex); | |
2257 | ||
2258 | HOTKEY_CONFIG_CRITICAL_START | |
2259 | hotkey_driver_mask = mask; | |
b684a363 | 2260 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2261 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2262 | #endif |
8b468c0c HMH |
2263 | HOTKEY_CONFIG_CRITICAL_END |
2264 | ||
2265 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2266 | ~hotkey_source_mask); | |
2267 | mutex_unlock(&hotkey_mutex); | |
2268 | ||
2269 | return rc; | |
2270 | } | |
2271 | ||
b2c985e7 HMH |
2272 | static int hotkey_status_get(int *status) |
2273 | { | |
2274 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2275 | return -EIO; | |
2276 | ||
2277 | return 0; | |
2278 | } | |
2279 | ||
2586d566 | 2280 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2281 | { |
2586d566 | 2282 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2283 | return -EIO; |
2284 | ||
2285 | return 0; | |
2286 | } | |
2287 | ||
6c231bd5 | 2288 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2289 | { |
6c231bd5 | 2290 | int state; |
b3ec6f91 | 2291 | |
6c231bd5 HMH |
2292 | if (tp_features.hotkey_tablet && |
2293 | !hotkey_get_tablet_mode(&state)) { | |
2294 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2295 | |
6c231bd5 HMH |
2296 | input_report_switch(tpacpi_inputdev, |
2297 | SW_TABLET_MODE, !!state); | |
2298 | input_sync(tpacpi_inputdev); | |
2299 | ||
2300 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2301 | } | |
b3ec6f91 HMH |
2302 | } |
2303 | ||
0d922e3b HMH |
2304 | /* Do NOT call without validating scancode first */ |
2305 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2306 | { |
0d922e3b | 2307 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2308 | |
2309 | if (keycode != KEY_RESERVED) { | |
2310 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2311 | ||
2312 | input_report_key(tpacpi_inputdev, keycode, 1); | |
2313 | if (keycode == KEY_UNKNOWN) | |
2314 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2315 | scancode); | |
2316 | input_sync(tpacpi_inputdev); | |
2317 | ||
2318 | input_report_key(tpacpi_inputdev, keycode, 0); | |
2319 | if (keycode == KEY_UNKNOWN) | |
2320 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2321 | scancode); | |
2322 | input_sync(tpacpi_inputdev); | |
2323 | ||
2324 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2325 | } | |
2326 | } | |
2327 | ||
0d922e3b HMH |
2328 | /* Do NOT call without validating scancode first */ |
2329 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2330 | { | |
8b468c0c | 2331 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2332 | if (hotkey_user_mask & (1 << scancode)) |
2333 | tpacpi_input_send_key(scancode); | |
2334 | } | |
2335 | ||
01e88f25 HMH |
2336 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2337 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2338 | ||
0d922e3b | 2339 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2340 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2341 | { | |
0d922e3b | 2342 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2343 | if (hotkey_report_mode < 2) { |
2344 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
67bcae6e | 2345 | 0x80, TP_HKEY_EV_HOTKEY_BASE + scancode); |
01e88f25 HMH |
2346 | } |
2347 | } | |
2348 | ||
0d922e3b | 2349 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2350 | { |
2351 | u8 d; | |
2352 | ||
2353 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2354 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2355 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2356 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2357 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2358 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2359 | } | |
2360 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2361 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2362 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2363 | } | |
2364 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2365 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2366 | n->displayexp_toggle = | |
2367 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2368 | } | |
2369 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2370 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2371 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2372 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2373 | n->brightness_toggle = | |
2374 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2375 | } | |
2376 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2377 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2378 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2379 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2380 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2381 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2382 | } | |
2383 | } | |
2384 | ||
0d922e3b HMH |
2385 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, |
2386 | struct tp_nvram_state *newn, | |
2387 | const u32 event_mask) | |
2388 | { | |
2389 | ||
01e88f25 | 2390 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ |
35ff8b9f | 2391 | do { \ |
0d922e3b | 2392 | if ((event_mask & (1 << __scancode)) && \ |
35ff8b9f | 2393 | oldn->__member != newn->__member) \ |
0d922e3b | 2394 | tpacpi_hotkey_send_key(__scancode); \ |
35ff8b9f | 2395 | } while (0) |
01e88f25 HMH |
2396 | |
2397 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
0d922e3b HMH |
2398 | do { \ |
2399 | if (event_mask & (1 << __scancode)) \ | |
2400 | tpacpi_hotkey_send_key(__scancode); \ | |
2401 | } while (0) | |
01e88f25 | 2402 | |
01e88f25 HMH |
2403 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2404 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2405 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2406 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2407 | ||
2408 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2409 | ||
2410 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2411 | ||
2412 | /* handle volume */ | |
2413 | if (oldn->volume_toggle != newn->volume_toggle) { | |
2414 | if (oldn->mute != newn->mute) { | |
2415 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2416 | } | |
2417 | if (oldn->volume_level > newn->volume_level) { | |
2418 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2419 | } else if (oldn->volume_level < newn->volume_level) { | |
2420 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2421 | } else if (oldn->mute == newn->mute) { | |
2422 | /* repeated key presses that didn't change state */ | |
2423 | if (newn->mute) { | |
2424 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2425 | } else if (newn->volume_level != 0) { | |
2426 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2427 | } else { | |
2428 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2429 | } | |
2430 | } | |
2431 | } | |
2432 | ||
2433 | /* handle brightness */ | |
2434 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
2435 | if (oldn->brightness_level < newn->brightness_level) { | |
2436 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2437 | } else if (oldn->brightness_level > newn->brightness_level) { | |
2438 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2439 | } else { | |
2440 | /* repeated key presses that didn't change state */ | |
2441 | if (newn->brightness_level != 0) { | |
2442 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2443 | } else { | |
2444 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2445 | } | |
2446 | } | |
2447 | } | |
01e88f25 HMH |
2448 | |
2449 | #undef TPACPI_COMPARE_KEY | |
2450 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2451 | } |
01e88f25 | 2452 | |
0d922e3b HMH |
2453 | /* |
2454 | * Polling driver | |
2455 | * | |
2456 | * We track all events in hotkey_source_mask all the time, since | |
2457 | * most of them are edge-based. We only issue those requested by | |
2458 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2459 | */ | |
01e88f25 HMH |
2460 | static int hotkey_kthread(void *data) |
2461 | { | |
2462 | struct tp_nvram_state s[2]; | |
0d922e3b | 2463 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2464 | unsigned int si, so; |
2465 | unsigned long t; | |
2466 | unsigned int change_detector, must_reset; | |
db25f16d | 2467 | unsigned int poll_freq; |
01e88f25 HMH |
2468 | |
2469 | mutex_lock(&hotkey_thread_mutex); | |
2470 | ||
2471 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
2472 | goto exit; | |
2473 | ||
2474 | set_freezable(); | |
2475 | ||
2476 | so = 0; | |
2477 | si = 1; | |
2478 | t = 0; | |
2479 | ||
2480 | /* Initial state for compares */ | |
2481 | mutex_lock(&hotkey_thread_data_mutex); | |
2482 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2483 | poll_mask = hotkey_source_mask; |
2484 | event_mask = hotkey_source_mask & | |
2485 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2486 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2487 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2488 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2489 | |
db25f16d HMH |
2490 | while (!kthread_should_stop()) { |
2491 | if (t == 0) { | |
2492 | if (likely(poll_freq)) | |
2493 | t = 1000/poll_freq; | |
2494 | else | |
2495 | t = 100; /* should never happen... */ | |
2496 | } | |
01e88f25 HMH |
2497 | t = msleep_interruptible(t); |
2498 | if (unlikely(kthread_should_stop())) | |
2499 | break; | |
2500 | must_reset = try_to_freeze(); | |
2501 | if (t > 0 && !must_reset) | |
2502 | continue; | |
2503 | ||
2504 | mutex_lock(&hotkey_thread_data_mutex); | |
2505 | if (must_reset || hotkey_config_change != change_detector) { | |
2506 | /* forget old state on thaw or config change */ | |
2507 | si = so; | |
2508 | t = 0; | |
2509 | change_detector = hotkey_config_change; | |
2510 | } | |
0d922e3b HMH |
2511 | poll_mask = hotkey_source_mask; |
2512 | event_mask = hotkey_source_mask & | |
2513 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2514 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2515 | mutex_unlock(&hotkey_thread_data_mutex); |
2516 | ||
0d922e3b HMH |
2517 | if (likely(poll_mask)) { |
2518 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2519 | if (likely(si != so)) { |
2520 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2521 | event_mask); |
01e88f25 HMH |
2522 | } |
2523 | } | |
2524 | ||
2525 | so = si; | |
2526 | si ^= 1; | |
2527 | } | |
2528 | ||
2529 | exit: | |
2530 | mutex_unlock(&hotkey_thread_mutex); | |
2531 | return 0; | |
2532 | } | |
2533 | ||
db25f16d | 2534 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2535 | static void hotkey_poll_stop_sync(void) |
2536 | { | |
2537 | if (tpacpi_hotkey_task) { | |
2538 | if (frozen(tpacpi_hotkey_task) || | |
2539 | freezing(tpacpi_hotkey_task)) | |
2540 | thaw_process(tpacpi_hotkey_task); | |
2541 | ||
2542 | kthread_stop(tpacpi_hotkey_task); | |
2543 | tpacpi_hotkey_task = NULL; | |
2544 | mutex_lock(&hotkey_thread_mutex); | |
2545 | /* at this point, the thread did exit */ | |
2546 | mutex_unlock(&hotkey_thread_mutex); | |
2547 | } | |
2548 | } | |
2549 | ||
2550 | /* call with hotkey_mutex held */ | |
db25f16d | 2551 | static void hotkey_poll_setup(bool may_warn) |
01e88f25 | 2552 | { |
0d922e3b HMH |
2553 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2554 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2555 | |
0d922e3b HMH |
2556 | if (hotkey_poll_freq > 0 && |
2557 | (poll_driver_mask || | |
2558 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2559 | if (!tpacpi_hotkey_task) { |
2560 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2561 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2562 | if (IS_ERR(tpacpi_hotkey_task)) { |
2563 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
2564 | printk(TPACPI_ERR |
2565 | "could not create kernel thread " | |
01e88f25 HMH |
2566 | "for hotkey polling\n"); |
2567 | } | |
2568 | } | |
2569 | } else { | |
2570 | hotkey_poll_stop_sync(); | |
0d922e3b | 2571 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2572 | hotkey_poll_freq == 0) { |
35ff8b9f | 2573 | printk(TPACPI_NOTICE |
0d922e3b HMH |
2574 | "hot keys 0x%08x and/or events 0x%08x " |
2575 | "require polling, which is currently " | |
2576 | "disabled\n", | |
2577 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2578 | } |
2579 | } | |
2580 | } | |
2581 | ||
db25f16d | 2582 | static void hotkey_poll_setup_safe(bool may_warn) |
01e88f25 HMH |
2583 | { |
2584 | mutex_lock(&hotkey_mutex); | |
2585 | hotkey_poll_setup(may_warn); | |
2586 | mutex_unlock(&hotkey_mutex); | |
2587 | } | |
2588 | ||
db25f16d HMH |
2589 | /* call with hotkey_mutex held */ |
2590 | static void hotkey_poll_set_freq(unsigned int freq) | |
2591 | { | |
2592 | if (!freq) | |
2593 | hotkey_poll_stop_sync(); | |
2594 | ||
db25f16d | 2595 | hotkey_poll_freq = freq; |
db25f16d HMH |
2596 | } |
2597 | ||
1bc6b9cd HMH |
2598 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2599 | ||
db25f16d | 2600 | static void hotkey_poll_setup_safe(bool __unused) |
1bc6b9cd HMH |
2601 | { |
2602 | } | |
2603 | ||
2604 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2605 | ||
01e88f25 HMH |
2606 | static int hotkey_inputdev_open(struct input_dev *dev) |
2607 | { | |
2608 | switch (tpacpi_lifecycle) { | |
2609 | case TPACPI_LIFE_INIT: | |
2610 | /* | |
2611 | * hotkey_init will call hotkey_poll_setup_safe | |
2612 | * at the appropriate moment | |
2613 | */ | |
2614 | return 0; | |
2615 | case TPACPI_LIFE_EXITING: | |
2616 | return -EBUSY; | |
2617 | case TPACPI_LIFE_RUNNING: | |
db25f16d | 2618 | hotkey_poll_setup_safe(false); |
01e88f25 HMH |
2619 | return 0; |
2620 | } | |
2621 | ||
2622 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2623 | BUG(); | |
2624 | return -EBUSY; | |
2625 | } | |
2626 | ||
2627 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2628 | { | |
2629 | /* disable hotkey polling when possible */ | |
0d922e3b HMH |
2630 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING && |
2631 | !(hotkey_source_mask & hotkey_driver_mask)) | |
db25f16d | 2632 | hotkey_poll_setup_safe(false); |
01e88f25 | 2633 | } |
01e88f25 | 2634 | |
a0416420 HMH |
2635 | /* sysfs hotkey enable ------------------------------------------------- */ |
2636 | static ssize_t hotkey_enable_show(struct device *dev, | |
2637 | struct device_attribute *attr, | |
2638 | char *buf) | |
2639 | { | |
ae92bd17 | 2640 | int res, status; |
a0416420 | 2641 | |
2586d566 HMH |
2642 | printk_deprecated_attribute("hotkey_enable", |
2643 | "Hotkey reporting is always enabled"); | |
2644 | ||
b2c985e7 | 2645 | res = hotkey_status_get(&status); |
a0416420 HMH |
2646 | if (res) |
2647 | return res; | |
2648 | ||
2649 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2650 | } | |
2651 | ||
2652 | static ssize_t hotkey_enable_store(struct device *dev, | |
2653 | struct device_attribute *attr, | |
2654 | const char *buf, size_t count) | |
2655 | { | |
2656 | unsigned long t; | |
2586d566 HMH |
2657 | |
2658 | printk_deprecated_attribute("hotkey_enable", | |
2659 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2660 | |
2661 | if (parse_strtoul(buf, 1, &t)) | |
2662 | return -EINVAL; | |
2663 | ||
2586d566 HMH |
2664 | if (t == 0) |
2665 | return -EPERM; | |
a0416420 | 2666 | |
2586d566 | 2667 | return count; |
a0416420 HMH |
2668 | } |
2669 | ||
2670 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 2671 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2672 | hotkey_enable_show, hotkey_enable_store); |
2673 | ||
2674 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2675 | static ssize_t hotkey_mask_show(struct device *dev, | |
2676 | struct device_attribute *attr, | |
2677 | char *buf) | |
2678 | { | |
0d922e3b | 2679 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2680 | } |
2681 | ||
2682 | static ssize_t hotkey_mask_store(struct device *dev, | |
2683 | struct device_attribute *attr, | |
2684 | const char *buf, size_t count) | |
2685 | { | |
2686 | unsigned long t; | |
b2c985e7 | 2687 | int res; |
a0416420 | 2688 | |
ae92bd17 | 2689 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2690 | return -EINVAL; |
2691 | ||
7646ea88 | 2692 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2693 | return -ERESTARTSYS; |
2694 | ||
0d922e3b | 2695 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2696 | |
2697 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2698 | hotkey_poll_setup(true); |
01e88f25 HMH |
2699 | #endif |
2700 | ||
b2c985e7 | 2701 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2702 | |
56e2c200 HMH |
2703 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2704 | ||
a0416420 HMH |
2705 | return (res) ? res : count; |
2706 | } | |
2707 | ||
2708 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 2709 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2710 | hotkey_mask_show, hotkey_mask_store); |
2711 | ||
2712 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2713 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2714 | struct device_attribute *attr, | |
2715 | char *buf) | |
2716 | { | |
2586d566 | 2717 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2718 | } |
2719 | ||
2720 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 2721 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
2722 | |
2723 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2724 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2725 | struct device_attribute *attr, | |
2726 | char *buf) | |
2727 | { | |
06777be6 HMH |
2728 | printk_deprecated_attribute("hotkey_bios_mask", |
2729 | "This attribute is useless."); | |
ae92bd17 | 2730 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2731 | } |
2732 | ||
2733 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 2734 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 2735 | |
9b010de5 HMH |
2736 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2737 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2738 | struct device_attribute *attr, | |
2739 | char *buf) | |
2740 | { | |
01e88f25 HMH |
2741 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2742 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2743 | } |
2744 | ||
2745 | static struct device_attribute dev_attr_hotkey_all_mask = | |
2746 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
2747 | ||
2748 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2749 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2750 | struct device_attribute *attr, | |
2751 | char *buf) | |
2752 | { | |
2753 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2754 | (hotkey_all_mask | hotkey_source_mask) |
2755 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2756 | } |
2757 | ||
2758 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
2759 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
2760 | hotkey_recommended_mask_show, NULL); | |
2761 | ||
01e88f25 HMH |
2762 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2763 | ||
2764 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2765 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2766 | struct device_attribute *attr, | |
2767 | char *buf) | |
2768 | { | |
2769 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2770 | } | |
2771 | ||
2772 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2773 | struct device_attribute *attr, | |
2774 | const char *buf, size_t count) | |
2775 | { | |
2776 | unsigned long t; | |
0d922e3b HMH |
2777 | u32 r_ev; |
2778 | int rc; | |
01e88f25 HMH |
2779 | |
2780 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2781 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2782 | return -EINVAL; | |
2783 | ||
7646ea88 | 2784 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2785 | return -ERESTARTSYS; |
2786 | ||
2787 | HOTKEY_CONFIG_CRITICAL_START | |
2788 | hotkey_source_mask = t; | |
2789 | HOTKEY_CONFIG_CRITICAL_END | |
2790 | ||
0d922e3b HMH |
2791 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2792 | ~hotkey_source_mask); | |
db25f16d | 2793 | hotkey_poll_setup(true); |
0d922e3b HMH |
2794 | |
2795 | /* check if events needed by the driver got disabled */ | |
2796 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2797 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2798 | |
2799 | mutex_unlock(&hotkey_mutex); | |
2800 | ||
0d922e3b HMH |
2801 | if (rc < 0) |
2802 | printk(TPACPI_ERR "hotkey_source_mask: failed to update the" | |
2803 | "firmware event mask!\n"); | |
2804 | ||
2805 | if (r_ev) | |
2806 | printk(TPACPI_NOTICE "hotkey_source_mask: " | |
2807 | "some important events were disabled: " | |
2808 | "0x%04x\n", r_ev); | |
2809 | ||
56e2c200 HMH |
2810 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2811 | ||
0d922e3b | 2812 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2813 | } |
2814 | ||
2815 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2816 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2817 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2818 | ||
2819 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2820 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2821 | struct device_attribute *attr, | |
2822 | char *buf) | |
2823 | { | |
2824 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2825 | } | |
2826 | ||
2827 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2828 | struct device_attribute *attr, | |
2829 | const char *buf, size_t count) | |
2830 | { | |
2831 | unsigned long t; | |
2832 | ||
2833 | if (parse_strtoul(buf, 25, &t)) | |
2834 | return -EINVAL; | |
2835 | ||
7646ea88 | 2836 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2837 | return -ERESTARTSYS; |
2838 | ||
db25f16d HMH |
2839 | hotkey_poll_set_freq(t); |
2840 | hotkey_poll_setup(true); | |
01e88f25 | 2841 | |
01e88f25 HMH |
2842 | mutex_unlock(&hotkey_mutex); |
2843 | ||
56e2c200 HMH |
2844 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2845 | ||
01e88f25 HMH |
2846 | return count; |
2847 | } | |
2848 | ||
2849 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2850 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2851 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2852 | ||
2853 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2854 | ||
50ebec09 | 2855 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2856 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2857 | struct device_attribute *attr, | |
2858 | char *buf) | |
2859 | { | |
19d337df JB |
2860 | int res; |
2861 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2862 | if (res < 0) |
2863 | return res; | |
2864 | ||
19d337df JB |
2865 | /* Opportunistic update */ |
2866 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2867 | ||
2868 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2869 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2870 | } |
2871 | ||
2872 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2873 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2874 | ||
50ebec09 HMH |
2875 | static void hotkey_radio_sw_notify_change(void) |
2876 | { | |
2877 | if (tp_features.hotkey_wlsw) | |
2878 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2879 | "hotkey_radio_sw"); | |
2880 | } | |
2881 | ||
6c231bd5 HMH |
2882 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2883 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2884 | struct device_attribute *attr, | |
2885 | char *buf) | |
2886 | { | |
2887 | int res, s; | |
2888 | res = hotkey_get_tablet_mode(&s); | |
2889 | if (res < 0) | |
2890 | return res; | |
2891 | ||
2892 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2893 | } | |
2894 | ||
2895 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2896 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2897 | ||
2898 | static void hotkey_tablet_mode_notify_change(void) | |
2899 | { | |
2900 | if (tp_features.hotkey_tablet) | |
2901 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2902 | "hotkey_tablet_mode"); | |
2903 | } | |
2904 | ||
ff80f137 HMH |
2905 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2906 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2907 | struct device_attribute *attr, | |
2908 | char *buf) | |
2909 | { | |
2910 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2911 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2912 | } | |
2913 | ||
2914 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2915 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2916 | ||
50ebec09 | 2917 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2918 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2919 | struct device_attribute *attr, | |
2920 | char *buf) | |
2921 | { | |
2922 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2923 | } | |
2924 | ||
2925 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2926 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2927 | ||
1d5a2b54 | 2928 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2929 | { |
0d922e3b HMH |
2930 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2931 | "wakeup_reason"); | |
50ebec09 HMH |
2932 | } |
2933 | ||
2934 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2935 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2936 | struct device_attribute *attr, | |
2937 | char *buf) | |
2938 | { | |
2939 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2940 | } | |
2941 | ||
2942 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2943 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2944 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2945 | ||
1d5a2b54 | 2946 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2947 | { |
0d922e3b HMH |
2948 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2949 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2950 | } |
2951 | ||
a0416420 HMH |
2952 | /* --------------------------------------------------------------------- */ |
2953 | ||
ff80f137 HMH |
2954 | static struct attribute *hotkey_attributes[] __initdata = { |
2955 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2956 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2957 | &dev_attr_hotkey_bios_mask.attr, |
ff80f137 | 2958 | &dev_attr_hotkey_report_mode.attr, |
0d922e3b HMH |
2959 | &dev_attr_hotkey_wakeup_reason.attr, |
2960 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2961 | &dev_attr_hotkey_mask.attr, |
2962 | &dev_attr_hotkey_all_mask.attr, | |
2963 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2964 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2965 | &dev_attr_hotkey_source_mask.attr, |
2966 | &dev_attr_hotkey_poll_freq.attr, | |
2967 | #endif | |
ff80f137 HMH |
2968 | }; |
2969 | ||
19d337df JB |
2970 | /* |
2971 | * Sync both the hw and sw blocking state of all switches | |
2972 | */ | |
733e27c1 HMH |
2973 | static void tpacpi_send_radiosw_update(void) |
2974 | { | |
2975 | int wlsw; | |
2976 | ||
19d337df JB |
2977 | /* |
2978 | * We must sync all rfkill controllers *before* issuing any | |
2979 | * rfkill input events, or we will race the rfkill core input | |
2980 | * handler. | |
2981 | * | |
2982 | * tpacpi_inputdev_send_mutex works as a syncronization point | |
2983 | * for the above. | |
2984 | * | |
2985 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
2986 | */ | |
2987 | ||
2988 | wlsw = hotkey_get_wlsw(); | |
2989 | ||
2990 | /* Sync hw blocking state first if it is hw-blocked */ | |
2991 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
2992 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 2993 | |
19d337df JB |
2994 | /* Sync sw blocking state */ |
2995 | tpacpi_rfk_update_swstate_all(); | |
2996 | ||
2997 | /* Sync hw blocking state last if it is hw-unblocked */ | |
2998 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
2999 | tpacpi_rfk_update_hwblock_state(false); | |
3000 | ||
3001 | /* Issue rfkill input event for WLSW switch */ | |
3002 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3003 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3004 | ||
3005 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3006 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3007 | input_sync(tpacpi_inputdev); |
3008 | ||
3009 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3010 | } | |
19d337df JB |
3011 | |
3012 | /* | |
3013 | * this can be unconditional, as we will poll state again | |
3014 | * if userspace uses the notify to read data | |
3015 | */ | |
733e27c1 HMH |
3016 | hotkey_radio_sw_notify_change(); |
3017 | } | |
3018 | ||
9c0a76e1 HMH |
3019 | static void hotkey_exit(void) |
3020 | { | |
3021 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3022 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3023 | hotkey_poll_stop_sync(); |
db25f16d | 3024 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3025 | #endif |
3026 | ||
3027 | if (hotkey_dev_attributes) | |
3028 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3029 | ||
3030 | kfree(hotkey_keycode_map); | |
3031 | ||
4be73005 | 3032 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3033 | "restoring original HKEY status and mask\n"); |
3034 | /* yes, there is a bitwise or below, we want the | |
3035 | * functions to be called even if one of them fail */ | |
3036 | if (((tp_features.hotkey_mask && | |
3037 | hotkey_mask_set(hotkey_orig_mask)) | | |
3038 | hotkey_status_set(false)) != 0) | |
4be73005 HMH |
3039 | printk(TPACPI_ERR |
3040 | "failed to restore hot key mask " | |
3041 | "to BIOS defaults\n"); | |
9c0a76e1 HMH |
3042 | } |
3043 | ||
de4c8cc7 HMH |
3044 | static void __init hotkey_unmap(const unsigned int scancode) |
3045 | { | |
3046 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3047 | clear_bit(hotkey_keycode_map[scancode], | |
3048 | tpacpi_inputdev->keybit); | |
3049 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3050 | } | |
3051 | } | |
3052 | ||
0d922e3b HMH |
3053 | /* |
3054 | * HKEY quirks: | |
3055 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3056 | */ | |
3057 | ||
3058 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3059 | ||
3060 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3061 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3062 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3063 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3064 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3065 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3066 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3067 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3068 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3069 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3070 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3071 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3072 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3073 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3074 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3075 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3076 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3077 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3078 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3079 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3080 | }; | |
3081 | ||
a5763f22 | 3082 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3083 | { |
0f089147 HMH |
3084 | /* Requirements for changing the default keymaps: |
3085 | * | |
3086 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3087 | * good reasons. Do not change them unless you have deep | |
3088 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3089 | * the various ThinkPad models. The driver behaves | |
3090 | * differently for KEY_RESERVED: such keys have their | |
3091 | * hot key mask *unset* in mask_recommended, and also | |
3092 | * in the initial hot key mask programmed into the | |
3093 | * firmware at driver load time, which means the firm- | |
3094 | * ware may react very differently if you change them to | |
3095 | * something else; | |
3096 | * | |
3097 | * 2. You must be subscribed to the linux-thinkpad and | |
3098 | * ibm-acpi-devel mailing lists, and you should read the | |
3099 | * list archives since 2007 if you want to change the | |
3100 | * keymaps. This requirement exists so that you will | |
3101 | * know the past history of problems with the thinkpad- | |
3102 | * acpi driver keymaps, and also that you will be | |
3103 | * listening to any bug reports; | |
3104 | * | |
3105 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3106 | * for merging, *ever*. Send them to the linux-acpi | |
3107 | * mailinglist for comments. Merging is to be done only | |
3108 | * through acpi-test and the ACPI maintainer. | |
3109 | * | |
3110 | * If the above is too much to ask, don't change the keymap. | |
3111 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3112 | */ | |
edf0e0e5 HMH |
3113 | static u16 ibm_keycode_map[] __initdata = { |
3114 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3115 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
3116 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3117 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3118 | |
3119 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3120 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3121 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3122 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3123 | |
0d922e3b | 3124 | /* brightness: firmware always reacts to them */ |
e927c08d | 3125 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3126 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3127 | |
3128 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3129 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3130 | |
edf0e0e5 HMH |
3131 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3132 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3133 | |
3134 | /* Volume: firmware always react to it and reprograms | |
3135 | * the built-in *extra* mixer. Never map it to control | |
3136 | * another mixer by default. */ | |
e927c08d HMH |
3137 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3138 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3139 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3140 | |
edf0e0e5 | 3141 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3142 | |
edf0e0e5 HMH |
3143 | /* (assignments unknown, please report if found) */ |
3144 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3145 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3146 | }; | |
3147 | static u16 lenovo_keycode_map[] __initdata = { | |
3148 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3149 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
3150 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3151 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3152 | |
3153 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3154 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3155 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3156 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3157 | |
de4c8cc7 HMH |
3158 | /* These should be enabled --only-- when ACPI video |
3159 | * is disabled (i.e. in "vendor" mode), and are handled | |
3160 | * in a special way by the init code */ | |
3161 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3162 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3163 | |
edf0e0e5 | 3164 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3165 | |
edf0e0e5 HMH |
3166 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3167 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3168 | |
3169 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3170 | * react to it and reprograms the built-in *extra* mixer. | |
3171 | * Never map it to control another mixer by default. | |
3172 | * | |
3173 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3174 | * these over the regular keyboard, so these are no-ops, | |
3175 | * but there are still weird bugs re. MUTE, so do not | |
3176 | * change unless you get test reports from all Lenovo | |
3177 | * models. May cause the BIOS to interfere with the | |
3178 | * HDA mixer. | |
3179 | */ | |
e927c08d HMH |
3180 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3181 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3182 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3183 | |
edf0e0e5 | 3184 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3185 | |
edf0e0e5 HMH |
3186 | /* (assignments unknown, please report if found) */ |
3187 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3188 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3189 | }; | |
3190 | ||
3191 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
3192 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
3193 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
3194 | ||
6a38abbf | 3195 | int res, i; |
74941a69 | 3196 | int status; |
1b6521dc | 3197 | int hkeyv; |
d89a727a HMH |
3198 | bool radiosw_state = false; |
3199 | bool tabletsw_state = false; | |
b86c4722 | 3200 | |
0d922e3b HMH |
3201 | unsigned long quirks; |
3202 | ||
56e2c200 HMH |
3203 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3204 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3205 | |
6a38abbf | 3206 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3207 | BUG_ON(tpacpi_inputdev->open != NULL || |
3208 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3209 | |
e0c7dfe7 | 3210 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3211 | mutex_init(&hotkey_mutex); |
5fba344c | 3212 | |
01e88f25 HMH |
3213 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
3214 | mutex_init(&hotkey_thread_mutex); | |
3215 | mutex_init(&hotkey_thread_data_mutex); | |
3216 | #endif | |
3217 | ||
56b6aeb0 | 3218 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3219 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3220 | |
56e2c200 HMH |
3221 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3222 | "hotkeys are %s\n", | |
d8fd94d9 | 3223 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3224 | |
9c0a76e1 HMH |
3225 | if (!tp_features.hotkey) |
3226 | return 1; | |
a0416420 | 3227 | |
0d922e3b HMH |
3228 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3229 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3230 | ||
d64c81c4 HMH |
3231 | tpacpi_disable_brightness_delay(); |
3232 | ||
0d922e3b HMH |
3233 | /* MUST have enough space for all attributes to be added to |
3234 | * hotkey_dev_attributes */ | |
3235 | hotkey_dev_attributes = create_attr_set( | |
3236 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3237 | NULL); | |
9c0a76e1 HMH |
3238 | if (!hotkey_dev_attributes) |
3239 | return -ENOMEM; | |
3240 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3241 | hotkey_attributes, | |
3242 | ARRAY_SIZE(hotkey_attributes)); | |
3243 | if (res) | |
3244 | goto err_exit; | |
3245 | ||
0d922e3b | 3246 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3247 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3248 | for HKEY interface version 0x100 */ | |
3249 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3250 | if ((hkeyv >> 8) != 1) { | |
3251 | printk(TPACPI_ERR "unknown version of the " | |
3252 | "HKEY interface: 0x%x\n", hkeyv); | |
3253 | printk(TPACPI_ERR "please report this to %s\n", | |
3254 | TPACPI_MAIL); | |
3255 | } else { | |
3256 | /* | |
3257 | * MHKV 0x100 in A31, R40, R40e, | |
3258 | * T4x, X31, and later | |
3259 | */ | |
56e2c200 HMH |
3260 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3261 | "firmware HKEY interface version: 0x%x\n", | |
3262 | hkeyv); | |
0d922e3b HMH |
3263 | |
3264 | /* Paranoia check AND init hotkey_all_mask */ | |
3265 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3266 | "MHKA", "qd")) { | |
3267 | printk(TPACPI_ERR | |
3268 | "missing MHKA handler, " | |
3269 | "please report this to %s\n", | |
3270 | TPACPI_MAIL); | |
3271 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3272 | hotkey_all_mask = 0x080cU; | |
3273 | } else { | |
3274 | tp_features.hotkey_mask = 1; | |
3275 | } | |
1b6521dc | 3276 | } |
9c0a76e1 | 3277 | } |
56b6aeb0 | 3278 | |
56e2c200 HMH |
3279 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3280 | "hotkey masks are %s\n", | |
9c0a76e1 | 3281 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3282 | |
0d922e3b HMH |
3283 | /* Init hotkey_all_mask if not initialized yet */ |
3284 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3285 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3286 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3287 | |
0d922e3b | 3288 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3289 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3290 | /* hotkey_source_mask *must* be zero for |
3291 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3292 | res = hotkey_mask_get(); |
3293 | if (res) | |
3294 | goto err_exit; | |
3295 | ||
0d922e3b HMH |
3296 | hotkey_orig_mask = hotkey_acpi_mask; |
3297 | } else { | |
3298 | hotkey_orig_mask = hotkey_all_mask; | |
3299 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3300 | } |
74941a69 | 3301 | |
a73f3091 HMH |
3302 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3303 | if (dbg_wlswemul) { | |
3304 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3305 | radiosw_state = !!tpacpi_wlsw_emulstate; |
a73f3091 HMH |
3306 | printk(TPACPI_INFO |
3307 | "radio switch emulation enabled\n"); | |
3308 | } else | |
3309 | #endif | |
9c0a76e1 HMH |
3310 | /* Not all thinkpads have a hardware radio switch */ |
3311 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3312 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3313 | radiosw_state = !!status; |
9c0a76e1 HMH |
3314 | printk(TPACPI_INFO |
3315 | "radio switch found; radios are %s\n", | |
3316 | enabled(status, 0)); | |
3a872080 HMH |
3317 | } |
3318 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3319 | res = add_to_attr_set(hotkey_dev_attributes, |
3320 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3321 | |
9c0a76e1 HMH |
3322 | /* For X41t, X60t, X61t Tablets... */ |
3323 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3324 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3325 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
9c0a76e1 HMH |
3326 | printk(TPACPI_INFO |
3327 | "possible tablet mode switch found; " | |
3328 | "ThinkPad in %s mode\n", | |
d89a727a | 3329 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3330 | res = add_to_attr_set(hotkey_dev_attributes, |
3331 | &dev_attr_hotkey_tablet_mode.attr); | |
3332 | } | |
6c231bd5 | 3333 | |
9c0a76e1 HMH |
3334 | if (!res) |
3335 | res = register_attr_set_with_sysfs( | |
3336 | hotkey_dev_attributes, | |
3337 | &tpacpi_pdev->dev.kobj); | |
3338 | if (res) | |
3339 | goto err_exit; | |
6a38abbf | 3340 | |
9c0a76e1 | 3341 | /* Set up key map */ |
edf0e0e5 | 3342 | |
9c0a76e1 HMH |
3343 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3344 | GFP_KERNEL); | |
3345 | if (!hotkey_keycode_map) { | |
3346 | printk(TPACPI_ERR | |
3347 | "failed to allocate memory for key map\n"); | |
3348 | res = -ENOMEM; | |
3349 | goto err_exit; | |
3350 | } | |
edf0e0e5 | 3351 | |
9c0a76e1 | 3352 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
56e2c200 | 3353 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3354 | "using Lenovo default hot key map\n"); |
3355 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
3356 | TPACPI_HOTKEY_MAP_SIZE); | |
3357 | } else { | |
56e2c200 | 3358 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3359 | "using IBM default hot key map\n"); |
3360 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
3361 | TPACPI_HOTKEY_MAP_SIZE); | |
3362 | } | |
edf0e0e5 | 3363 | |
792979c8 | 3364 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3365 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3366 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3367 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3368 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3369 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3370 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3371 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3372 | } else { |
3373 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3374 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3375 | } |
9c0a76e1 | 3376 | } |
6a38abbf | 3377 | |
9c0a76e1 | 3378 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3379 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3380 | input_report_switch(tpacpi_inputdev, |
3381 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3382 | } |
3383 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3384 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3385 | input_report_switch(tpacpi_inputdev, |
3386 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3387 | } |
5c29d58f | 3388 | |
9c0a76e1 HMH |
3389 | /* Do not issue duplicate brightness change events to |
3390 | * userspace */ | |
3391 | if (!tp_features.bright_acpimode) | |
3392 | /* update bright_acpimode... */ | |
3393 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 3394 | |
8bf3d4c5 | 3395 | if (tp_features.bright_acpimode && acpi_video_backlight_support()) { |
9c0a76e1 HMH |
3396 | printk(TPACPI_INFO |
3397 | "This ThinkPad has standard ACPI backlight " | |
3398 | "brightness control, supported by the ACPI " | |
3399 | "video driver\n"); | |
3400 | printk(TPACPI_NOTICE | |
3401 | "Disabling thinkpad-acpi brightness events " | |
3402 | "by default...\n"); | |
3403 | ||
de4c8cc7 HMH |
3404 | /* Disable brightness up/down on Lenovo thinkpads when |
3405 | * ACPI is handling them, otherwise it is plain impossible | |
3406 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3407 | hotkey_reserved_mask |= |
3408 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3409 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3410 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3411 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3412 | } |
ff80f137 | 3413 | |
230d8cf2 | 3414 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3415 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3416 | & ~hotkey_all_mask | |
3417 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3418 | |
3419 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3420 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3421 | hotkey_source_mask, hotkey_poll_freq); | |
3422 | #endif | |
3423 | ||
56e2c200 HMH |
3424 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3425 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3426 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3427 | if (res) { |
3428 | hotkey_exit(); | |
3429 | return res; | |
3430 | } | |
0d922e3b HMH |
3431 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3432 | | hotkey_driver_mask) | |
3433 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3434 | if (res < 0 && res != -ENXIO) { |
3435 | hotkey_exit(); | |
3436 | return res; | |
3437 | } | |
0d922e3b HMH |
3438 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3439 | & ~hotkey_reserved_mask; | |
3440 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3441 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3442 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3443 | |
56e2c200 HMH |
3444 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3445 | "legacy ibm/hotkey event reporting over procfs %s\n", | |
9c0a76e1 HMH |
3446 | (hotkey_report_mode < 2) ? |
3447 | "enabled" : "disabled"); | |
01e88f25 | 3448 | |
9c0a76e1 HMH |
3449 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3450 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3451 | |
db25f16d | 3452 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3453 | |
9c0a76e1 | 3454 | return 0; |
01e88f25 | 3455 | |
9c0a76e1 HMH |
3456 | err_exit: |
3457 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3458 | hotkey_dev_attributes = NULL; | |
a0416420 | 3459 | |
9c0a76e1 | 3460 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
3461 | } |
3462 | ||
3827e7a3 HMH |
3463 | static bool hotkey_notify_hotkey(const u32 hkey, |
3464 | bool *send_acpi_ev, | |
3465 | bool *ignore_acpi_ev) | |
3466 | { | |
3467 | /* 0x1000-0x1FFF: key presses */ | |
3468 | unsigned int scancode = hkey & 0xfff; | |
3469 | *send_acpi_ev = true; | |
3470 | *ignore_acpi_ev = false; | |
3471 | ||
3472 | if (scancode > 0 && scancode < 0x21) { | |
3473 | scancode--; | |
3474 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3475 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3476 | *send_acpi_ev = false; |
3477 | } else { | |
3478 | *ignore_acpi_ev = true; | |
3479 | } | |
3480 | return true; | |
3481 | } | |
3482 | return false; | |
3483 | } | |
3484 | ||
3485 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3486 | bool *send_acpi_ev, | |
3487 | bool *ignore_acpi_ev) | |
3488 | { | |
3489 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3490 | *send_acpi_ev = true; | |
3491 | *ignore_acpi_ev = false; | |
3492 | ||
3493 | switch (hkey) { | |
67bcae6e HMH |
3494 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3495 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3496 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3497 | *ignore_acpi_ev = true; | |
3498 | break; | |
3499 | ||
67bcae6e HMH |
3500 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3501 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3502 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3503 | *ignore_acpi_ev = true; | |
3504 | break; | |
3505 | ||
67bcae6e HMH |
3506 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3507 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
106b4e66 HMH |
3508 | printk(TPACPI_ALERT |
3509 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
3510 | /* how to auto-heal: */ | |
3511 | /* 2313: woke up from S3, go to S4/S5 */ | |
3512 | /* 2413: woke up from S4, go to S5 */ | |
3513 | break; | |
3514 | ||
3827e7a3 HMH |
3515 | default: |
3516 | return false; | |
3517 | } | |
3518 | ||
3519 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
3520 | printk(TPACPI_INFO | |
3521 | "woke up due to a hot-unplug " | |
3522 | "request...\n"); | |
3523 | hotkey_wakeup_reason_notify_change(); | |
3524 | } | |
3525 | return true; | |
3526 | } | |
3527 | ||
3528 | static bool hotkey_notify_usrevent(const u32 hkey, | |
3529 | bool *send_acpi_ev, | |
3530 | bool *ignore_acpi_ev) | |
3531 | { | |
3532 | /* 0x5000-0x5FFF: human interface helpers */ | |
3533 | *send_acpi_ev = true; | |
3534 | *ignore_acpi_ev = false; | |
3535 | ||
3536 | switch (hkey) { | |
67bcae6e HMH |
3537 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3538 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3539 | return true; |
3540 | ||
67bcae6e HMH |
3541 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3542 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3543 | tpacpi_input_send_tabletsw(); |
3544 | hotkey_tablet_mode_notify_change(); | |
3545 | *send_acpi_ev = false; | |
3546 | return true; | |
3547 | ||
67bcae6e HMH |
3548 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3549 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3550 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3551 | /* do not propagate these events */ |
3827e7a3 HMH |
3552 | *ignore_acpi_ev = true; |
3553 | return true; | |
3554 | ||
3555 | default: | |
3556 | return false; | |
3557 | } | |
3558 | } | |
3559 | ||
9ebd9e83 HMH |
3560 | static void thermal_dump_all_sensors(void); |
3561 | ||
106b4e66 HMH |
3562 | static bool hotkey_notify_thermal(const u32 hkey, |
3563 | bool *send_acpi_ev, | |
3564 | bool *ignore_acpi_ev) | |
3565 | { | |
9ebd9e83 HMH |
3566 | bool known = true; |
3567 | ||
106b4e66 HMH |
3568 | /* 0x6000-0x6FFF: thermal alarms */ |
3569 | *send_acpi_ev = true; | |
3570 | *ignore_acpi_ev = false; | |
3571 | ||
3572 | switch (hkey) { | |
9ebd9e83 HMH |
3573 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
3574 | printk(TPACPI_INFO | |
3575 | "EC reports that Thermal Table has changed\n"); | |
3576 | /* recommended action: do nothing, we don't have | |
3577 | * Lenovo ATM information */ | |
3578 | return true; | |
67bcae6e | 3579 | case TP_HKEY_EV_ALARM_BAT_HOT: |
106b4e66 HMH |
3580 | printk(TPACPI_CRIT |
3581 | "THERMAL ALARM: battery is too hot!\n"); | |
3582 | /* recommended action: warn user through gui */ | |
9ebd9e83 | 3583 | break; |
67bcae6e | 3584 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
106b4e66 HMH |
3585 | printk(TPACPI_ALERT |
3586 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
3587 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3588 | break; |
67bcae6e | 3589 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
106b4e66 HMH |
3590 | printk(TPACPI_CRIT |
3591 | "THERMAL ALARM: " | |
3592 | "a sensor reports something is too hot!\n"); | |
3593 | /* recommended action: warn user through gui, that */ | |
3594 | /* some internal component is too hot */ | |
9ebd9e83 | 3595 | break; |
67bcae6e | 3596 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
106b4e66 HMH |
3597 | printk(TPACPI_ALERT |
3598 | "THERMAL EMERGENCY: " | |
3599 | "a sensor reports something is extremely hot!\n"); | |
3600 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3601 | break; |
106b4e66 HMH |
3602 | default: |
3603 | printk(TPACPI_ALERT | |
3604 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
9ebd9e83 | 3605 | known = false; |
106b4e66 | 3606 | } |
9ebd9e83 HMH |
3607 | |
3608 | thermal_dump_all_sensors(); | |
3609 | ||
3610 | return known; | |
106b4e66 HMH |
3611 | } |
3612 | ||
56b6aeb0 HMH |
3613 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3614 | { | |
6a38abbf | 3615 | u32 hkey; |
3827e7a3 HMH |
3616 | bool send_acpi_ev; |
3617 | bool ignore_acpi_ev; | |
3618 | bool known_ev; | |
3eea123d HMH |
3619 | |
3620 | if (event != 0x80) { | |
35ff8b9f HMH |
3621 | printk(TPACPI_ERR |
3622 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 3623 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3624 | acpi_bus_generate_netlink_event( |
3625 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3626 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3627 | event, 0); |
3eea123d HMH |
3628 | return; |
3629 | } | |
3630 | ||
3631 | while (1) { | |
3632 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 3633 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
3634 | return; |
3635 | } | |
3636 | ||
3637 | if (hkey == 0) { | |
3638 | /* queue empty */ | |
3639 | return; | |
3640 | } | |
3641 | ||
3827e7a3 HMH |
3642 | send_acpi_ev = true; |
3643 | ignore_acpi_ev = false; | |
56b6aeb0 | 3644 | |
ff80f137 HMH |
3645 | switch (hkey >> 12) { |
3646 | case 1: | |
3647 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3648 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3649 | &ignore_acpi_ev); | |
ff80f137 | 3650 | break; |
a713b4d7 | 3651 | case 2: |
3827e7a3 HMH |
3652 | /* 0x2000-0x2FFF: Wakeup reason */ |
3653 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3654 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3655 | break; |
3656 | case 3: | |
3827e7a3 | 3657 | /* 0x3000-0x3FFF: bay-related wakeups */ |
67bcae6e | 3658 | if (hkey == TP_HKEY_EV_BAYEJ_ACK) { |
a713b4d7 HMH |
3659 | hotkey_autosleep_ack = 1; |
3660 | printk(TPACPI_INFO | |
3661 | "bay ejected\n"); | |
50ebec09 | 3662 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3663 | known_ev = true; |
a713b4d7 | 3664 | } else { |
3827e7a3 | 3665 | known_ev = false; |
a713b4d7 HMH |
3666 | } |
3667 | break; | |
3668 | case 4: | |
3827e7a3 | 3669 | /* 0x4000-0x4FFF: dock-related wakeups */ |
67bcae6e | 3670 | if (hkey == TP_HKEY_EV_UNDOCK_ACK) { |
a713b4d7 HMH |
3671 | hotkey_autosleep_ack = 1; |
3672 | printk(TPACPI_INFO | |
3673 | "undocked\n"); | |
50ebec09 | 3674 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3675 | known_ev = true; |
a713b4d7 | 3676 | } else { |
3827e7a3 | 3677 | known_ev = false; |
a713b4d7 HMH |
3678 | } |
3679 | break; | |
ff80f137 | 3680 | case 5: |
d1edb2b5 | 3681 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3682 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3683 | &ignore_acpi_ev); | |
ff80f137 | 3684 | break; |
106b4e66 HMH |
3685 | case 6: |
3686 | /* 0x6000-0x6FFF: thermal alarms */ | |
3687 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
3688 | &ignore_acpi_ev); | |
3689 | break; | |
ff80f137 HMH |
3690 | case 7: |
3691 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3692 | if (tp_features.hotkey_wlsw && |
3693 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3694 | tpacpi_send_radiosw_update(); |
3b64b51d | 3695 | send_acpi_ev = 0; |
3827e7a3 | 3696 | known_ev = true; |
6a38abbf | 3697 | break; |
6a38abbf | 3698 | } |
ff80f137 HMH |
3699 | /* fallthrough to default */ |
3700 | default: | |
3827e7a3 | 3701 | known_ev = false; |
3b64b51d | 3702 | } |
3827e7a3 | 3703 | if (!known_ev) { |
35ff8b9f HMH |
3704 | printk(TPACPI_NOTICE |
3705 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
3706 | printk(TPACPI_NOTICE |
3707 | "please report the conditions when this " | |
3708 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3709 | } |
ff80f137 | 3710 | |
3eea123d | 3711 | /* Legacy events */ |
35ff8b9f HMH |
3712 | if (!ignore_acpi_ev && |
3713 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
3714 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
3715 | event, hkey); | |
3e5ce914 | 3716 | } |
ff80f137 | 3717 | |
3eea123d | 3718 | /* netlink events */ |
3e5ce914 | 3719 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3720 | acpi_bus_generate_netlink_event( |
3721 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3722 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3723 | event, hkey); |
3eea123d | 3724 | } |
56b6aeb0 HMH |
3725 | } |
3726 | } | |
3727 | ||
a713b4d7 HMH |
3728 | static void hotkey_suspend(pm_message_t state) |
3729 | { | |
3730 | /* Do these on suspend, we get the events on early resume! */ | |
3731 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3732 | hotkey_autosleep_ack = 0; | |
3733 | } | |
3734 | ||
5c29d58f HMH |
3735 | static void hotkey_resume(void) |
3736 | { | |
d64c81c4 HMH |
3737 | tpacpi_disable_brightness_delay(); |
3738 | ||
0d922e3b HMH |
3739 | if (hotkey_status_set(true) < 0 || |
3740 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
35ff8b9f | 3741 | printk(TPACPI_ERR |
0d922e3b HMH |
3742 | "error while attempting to reset the event " |
3743 | "firmware interface\n"); | |
3744 | ||
733e27c1 | 3745 | tpacpi_send_radiosw_update(); |
6c231bd5 | 3746 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
3747 | hotkey_wakeup_reason_notify_change(); |
3748 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 3749 | hotkey_poll_setup_safe(false); |
5c29d58f HMH |
3750 | } |
3751 | ||
a0416420 | 3752 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 3753 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 3754 | { |
ae92bd17 | 3755 | int res, status; |
1da177e4 | 3756 | |
d8fd94d9 | 3757 | if (!tp_features.hotkey) { |
887965e6 AD |
3758 | seq_printf(m, "status:\t\tnot supported\n"); |
3759 | return 0; | |
78f81cc4 BD |
3760 | } |
3761 | ||
7646ea88 | 3762 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3763 | return -ERESTARTSYS; |
b2c985e7 HMH |
3764 | res = hotkey_status_get(&status); |
3765 | if (!res) | |
3766 | res = hotkey_mask_get(); | |
40ca9fdf | 3767 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
3768 | if (res) |
3769 | return res; | |
1da177e4 | 3770 | |
887965e6 | 3771 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 3772 | if (hotkey_all_mask) { |
887965e6 AD |
3773 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
3774 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 3775 | } else { |
887965e6 AD |
3776 | seq_printf(m, "mask:\t\tnot supported\n"); |
3777 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
3778 | } |
3779 | ||
887965e6 | 3780 | return 0; |
1da177e4 LT |
3781 | } |
3782 | ||
406e988b | 3783 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
3784 | { |
3785 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b HMH |
3786 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
3787 | TPACPI_WARN | |
3788 | "hotkey enable/disable functionality has been " | |
3789 | "removed from the driver. Hotkeys are always " | |
3790 | "enabled\n")) | |
3791 | printk(TPACPI_ERR | |
3792 | "Please remove the hotkey=enable module " | |
3793 | "parameter, it is deprecated. Hotkeys are always " | |
3794 | "enabled\n"); | |
2586d566 HMH |
3795 | } |
3796 | ||
78f81cc4 | 3797 | static int hotkey_write(char *buf) |
1da177e4 | 3798 | { |
2586d566 | 3799 | int res; |
ae92bd17 | 3800 | u32 mask; |
1da177e4 | 3801 | char *cmd; |
1da177e4 | 3802 | |
d8fd94d9 | 3803 | if (!tp_features.hotkey) |
1da177e4 LT |
3804 | return -ENODEV; |
3805 | ||
7646ea88 | 3806 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3807 | return -ERESTARTSYS; |
40ca9fdf | 3808 | |
0d922e3b | 3809 | mask = hotkey_user_mask; |
78f81cc4 | 3810 | |
40ca9fdf | 3811 | res = 0; |
1da177e4 LT |
3812 | while ((cmd = next_cmd(&buf))) { |
3813 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 3814 | hotkey_enabledisable_warn(1); |
1da177e4 | 3815 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 3816 | hotkey_enabledisable_warn(0); |
2586d566 | 3817 | res = -EPERM; |
1da177e4 | 3818 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
3819 | mask = (hotkey_all_mask | hotkey_source_mask) |
3820 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
3821 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
3822 | /* mask set */ | |
3823 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
3824 | /* mask set */ | |
40ca9fdf HMH |
3825 | } else { |
3826 | res = -EINVAL; | |
3827 | goto errexit; | |
3828 | } | |
1da177e4 | 3829 | } |
56e2c200 | 3830 | |
0d922e3b | 3831 | if (!res) { |
56e2c200 HMH |
3832 | tpacpi_disclose_usertask("procfs hotkey", |
3833 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
3834 | res = hotkey_user_mask_set(mask); |
3835 | } | |
1da177e4 | 3836 | |
40ca9fdf HMH |
3837 | errexit: |
3838 | mutex_unlock(&hotkey_mutex); | |
3839 | return res; | |
78f81cc4 | 3840 | } |
1da177e4 | 3841 | |
1ba90e3a | 3842 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 3843 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
3844 | {"", 0}, |
3845 | }; | |
3846 | ||
8d376cd6 | 3847 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 3848 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
3849 | .notify = hotkey_notify, |
3850 | .handle = &hkey_handle, | |
3851 | .type = ACPI_DEVICE_NOTIFY, | |
3852 | }; | |
3853 | ||
a5763f22 HMH |
3854 | static struct ibm_struct hotkey_driver_data = { |
3855 | .name = "hotkey", | |
a5763f22 HMH |
3856 | .read = hotkey_read, |
3857 | .write = hotkey_write, | |
3858 | .exit = hotkey_exit, | |
5c29d58f | 3859 | .resume = hotkey_resume, |
a713b4d7 | 3860 | .suspend = hotkey_suspend, |
8d376cd6 | 3861 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
3862 | }; |
3863 | ||
56b6aeb0 HMH |
3864 | /************************************************************************* |
3865 | * Bluetooth subdriver | |
3866 | */ | |
1da177e4 | 3867 | |
f74a27d4 HMH |
3868 | enum { |
3869 | /* ACPI GBDC/SBDC bits */ | |
3870 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
3871 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 HMH |
3872 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
3873 | off / last state */ | |
3874 | }; | |
3875 | ||
3876 | enum { | |
3877 | /* ACPI \BLTH commands */ | |
3878 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
3879 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
3880 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
3881 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
3882 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
3883 | }; |
3884 | ||
bee4cd9b HMH |
3885 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
3886 | ||
19d337df | 3887 | static int bluetooth_get_status(void) |
07431ec8 HMH |
3888 | { |
3889 | int status; | |
3890 | ||
a73f3091 HMH |
3891 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3892 | if (dbg_bluetoothemul) | |
3893 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 3894 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
3895 | #endif |
3896 | ||
07431ec8 HMH |
3897 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3898 | return -EIO; | |
3899 | ||
0e74dc26 | 3900 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 3901 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
3902 | } |
3903 | ||
19d337df | 3904 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
3905 | { |
3906 | int status; | |
3907 | ||
bee4cd9b | 3908 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
3909 | "will attempt to %s bluetooth\n", |
3910 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 3911 | |
a73f3091 HMH |
3912 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3913 | if (dbg_bluetoothemul) { | |
19d337df | 3914 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
3915 | return 0; |
3916 | } | |
3917 | #endif | |
3918 | ||
153f8220 | 3919 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
208b996b | 3920 | status = TP_ACPI_BLUETOOTH_RESUMECTRL; |
19d337df | 3921 | if (state == TPACPI_RFK_RADIO_ON) |
208b996b | 3922 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; |
19d337df | 3923 | |
07431ec8 HMH |
3924 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3925 | return -EIO; | |
3926 | ||
3927 | return 0; | |
3928 | } | |
f74a27d4 | 3929 | |
d3a6ade4 HMH |
3930 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3931 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3932 | struct device_attribute *attr, | |
3933 | char *buf) | |
3934 | { | |
19d337df JB |
3935 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
3936 | attr, buf); | |
d3a6ade4 HMH |
3937 | } |
3938 | ||
3939 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3940 | struct device_attribute *attr, | |
3941 | const char *buf, size_t count) | |
3942 | { | |
19d337df JB |
3943 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
3944 | attr, buf, count); | |
d3a6ade4 HMH |
3945 | } |
3946 | ||
3947 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3948 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3949 | bluetooth_enable_show, bluetooth_enable_store); |
3950 | ||
3951 | /* --------------------------------------------------------------------- */ | |
3952 | ||
3953 | static struct attribute *bluetooth_attributes[] = { | |
3954 | &dev_attr_bluetooth_enable.attr, | |
3955 | NULL | |
3956 | }; | |
3957 | ||
3958 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3959 | .attrs = bluetooth_attributes, |
3960 | }; | |
3961 | ||
19d337df JB |
3962 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
3963 | .get_status = bluetooth_get_status, | |
3964 | .set_status = bluetooth_set_status, | |
3965 | }; | |
0e74dc26 | 3966 | |
90d9d3c7 HMH |
3967 | static void bluetooth_shutdown(void) |
3968 | { | |
3969 | /* Order firmware to save current state to NVRAM */ | |
3970 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
3971 | TP_ACPI_BLTH_SAVE_STATE)) | |
3972 | printk(TPACPI_NOTICE | |
3973 | "failed to save bluetooth state to NVRAM\n"); | |
bee4cd9b HMH |
3974 | else |
3975 | vdbg_printk(TPACPI_DBG_RFKILL, | |
3976 | "bluestooth state saved to NVRAM\n"); | |
90d9d3c7 HMH |
3977 | } |
3978 | ||
07431ec8 HMH |
3979 | static void bluetooth_exit(void) |
3980 | { | |
3981 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
3982 | &bluetooth_attr_group); | |
19d337df JB |
3983 | |
3984 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
3985 | ||
3986 | bluetooth_shutdown(); | |
07431ec8 HMH |
3987 | } |
3988 | ||
a5763f22 | 3989 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 3990 | { |
d3a6ade4 | 3991 | int res; |
d6fdd1e9 HMH |
3992 | int status = 0; |
3993 | ||
bee4cd9b HMH |
3994 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3995 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 3996 | |
e0c7dfe7 | 3997 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3998 | |
78f81cc4 BD |
3999 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4000 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4001 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4002 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4003 | ||
bee4cd9b HMH |
4004 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4005 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4006 | str_supported(tp_features.bluetooth), |
4007 | status); | |
4008 | ||
a73f3091 HMH |
4009 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4010 | if (dbg_bluetoothemul) { | |
4011 | tp_features.bluetooth = 1; | |
4012 | printk(TPACPI_INFO | |
4013 | "bluetooth switch emulation enabled\n"); | |
4014 | } else | |
4015 | #endif | |
3a872080 HMH |
4016 | if (tp_features.bluetooth && |
4017 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4018 | /* no bluetooth hardware present in system */ | |
4019 | tp_features.bluetooth = 0; | |
bee4cd9b | 4020 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4021 | "bluetooth hardware not installed\n"); |
4022 | } | |
4023 | ||
0e74dc26 HMH |
4024 | if (!tp_features.bluetooth) |
4025 | return 1; | |
4026 | ||
0e74dc26 | 4027 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4028 | &bluetooth_tprfk_ops, |
0e74dc26 | 4029 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4030 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4031 | true); |
4032 | if (res) | |
4033 | return res; | |
4034 | ||
4035 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4036 | &bluetooth_attr_group); | |
0e74dc26 | 4037 | if (res) { |
19d337df | 4038 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4039 | return res; |
d6fdd1e9 | 4040 | } |
fe08bc4b | 4041 | |
0e74dc26 | 4042 | return 0; |
1da177e4 LT |
4043 | } |
4044 | ||
d3a6ade4 | 4045 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4046 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4047 | { |
887965e6 | 4048 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4049 | } |
4050 | ||
78f81cc4 | 4051 | static int bluetooth_write(char *buf) |
1da177e4 | 4052 | { |
19d337df | 4053 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4054 | } |
4055 | ||
a5763f22 HMH |
4056 | static struct ibm_struct bluetooth_driver_data = { |
4057 | .name = "bluetooth", | |
4058 | .read = bluetooth_read, | |
4059 | .write = bluetooth_write, | |
d3a6ade4 | 4060 | .exit = bluetooth_exit, |
90d9d3c7 | 4061 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4062 | }; |
4063 | ||
56b6aeb0 HMH |
4064 | /************************************************************************* |
4065 | * Wan subdriver | |
4066 | */ | |
4067 | ||
f74a27d4 HMH |
4068 | enum { |
4069 | /* ACPI GWAN/SWAN bits */ | |
4070 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4071 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 HMH |
4072 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
4073 | off / last state */ | |
f74a27d4 HMH |
4074 | }; |
4075 | ||
bee4cd9b HMH |
4076 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4077 | ||
19d337df | 4078 | static int wan_get_status(void) |
07431ec8 HMH |
4079 | { |
4080 | int status; | |
4081 | ||
a73f3091 HMH |
4082 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4083 | if (dbg_wwanemul) | |
4084 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4085 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4086 | #endif |
4087 | ||
07431ec8 HMH |
4088 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4089 | return -EIO; | |
4090 | ||
0e74dc26 | 4091 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4092 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4093 | } |
4094 | ||
19d337df | 4095 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4096 | { |
4097 | int status; | |
4098 | ||
bee4cd9b | 4099 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4100 | "will attempt to %s wwan\n", |
4101 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4102 | |
a73f3091 HMH |
4103 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4104 | if (dbg_wwanemul) { | |
19d337df | 4105 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4106 | return 0; |
4107 | } | |
4108 | #endif | |
4109 | ||
208b996b HMH |
4110 | /* We make sure to set TP_ACPI_WANCARD_RESUMECTRL */ |
4111 | status = TP_ACPI_WANCARD_RESUMECTRL; | |
19d337df | 4112 | if (state == TPACPI_RFK_RADIO_ON) |
208b996b | 4113 | status |= TP_ACPI_WANCARD_RADIOSSW; |
19d337df | 4114 | |
07431ec8 HMH |
4115 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4116 | return -EIO; | |
4117 | ||
4118 | return 0; | |
4119 | } | |
f74a27d4 | 4120 | |
d3a6ade4 HMH |
4121 | /* sysfs wan enable ---------------------------------------------------- */ |
4122 | static ssize_t wan_enable_show(struct device *dev, | |
4123 | struct device_attribute *attr, | |
4124 | char *buf) | |
4125 | { | |
19d337df JB |
4126 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4127 | attr, buf); | |
d3a6ade4 HMH |
4128 | } |
4129 | ||
4130 | static ssize_t wan_enable_store(struct device *dev, | |
4131 | struct device_attribute *attr, | |
4132 | const char *buf, size_t count) | |
4133 | { | |
19d337df JB |
4134 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4135 | attr, buf, count); | |
d3a6ade4 HMH |
4136 | } |
4137 | ||
4138 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 4139 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4140 | wan_enable_show, wan_enable_store); |
4141 | ||
4142 | /* --------------------------------------------------------------------- */ | |
4143 | ||
4144 | static struct attribute *wan_attributes[] = { | |
4145 | &dev_attr_wan_enable.attr, | |
4146 | NULL | |
4147 | }; | |
4148 | ||
4149 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4150 | .attrs = wan_attributes, |
4151 | }; | |
4152 | ||
19d337df JB |
4153 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4154 | .get_status = wan_get_status, | |
4155 | .set_status = wan_set_status, | |
4156 | }; | |
0e74dc26 | 4157 | |
90d9d3c7 HMH |
4158 | static void wan_shutdown(void) |
4159 | { | |
4160 | /* Order firmware to save current state to NVRAM */ | |
4161 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4162 | TP_ACPI_WGSV_SAVE_STATE)) | |
4163 | printk(TPACPI_NOTICE | |
4164 | "failed to save WWAN state to NVRAM\n"); | |
bee4cd9b HMH |
4165 | else |
4166 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4167 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4168 | } |
4169 | ||
07431ec8 HMH |
4170 | static void wan_exit(void) |
4171 | { | |
4172 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4173 | &wan_attr_group); | |
19d337df JB |
4174 | |
4175 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4176 | ||
4177 | wan_shutdown(); | |
07431ec8 HMH |
4178 | } |
4179 | ||
a5763f22 | 4180 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4181 | { |
d3a6ade4 | 4182 | int res; |
d6fdd1e9 HMH |
4183 | int status = 0; |
4184 | ||
bee4cd9b HMH |
4185 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4186 | "initializing wan subdriver\n"); | |
fe08bc4b | 4187 | |
e0c7dfe7 | 4188 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4189 | |
d8fd94d9 | 4190 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4191 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4192 | ||
bee4cd9b HMH |
4193 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4194 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4195 | str_supported(tp_features.wan), |
4196 | status); | |
4197 | ||
a73f3091 HMH |
4198 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4199 | if (dbg_wwanemul) { | |
4200 | tp_features.wan = 1; | |
4201 | printk(TPACPI_INFO | |
4202 | "wwan switch emulation enabled\n"); | |
4203 | } else | |
4204 | #endif | |
3a872080 HMH |
4205 | if (tp_features.wan && |
4206 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4207 | /* no wan hardware present in system */ | |
4208 | tp_features.wan = 0; | |
bee4cd9b | 4209 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4210 | "wan hardware not installed\n"); |
4211 | } | |
4212 | ||
0e74dc26 HMH |
4213 | if (!tp_features.wan) |
4214 | return 1; | |
4215 | ||
0e74dc26 | 4216 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4217 | &wan_tprfk_ops, |
0e74dc26 | 4218 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4219 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4220 | true); |
4221 | if (res) | |
4222 | return res; | |
4223 | ||
4224 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4225 | &wan_attr_group); | |
4226 | ||
0e74dc26 | 4227 | if (res) { |
19d337df | 4228 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4229 | return res; |
d6fdd1e9 | 4230 | } |
fe08bc4b | 4231 | |
0e74dc26 | 4232 | return 0; |
42adb53c JF |
4233 | } |
4234 | ||
d3a6ade4 | 4235 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4236 | static int wan_read(struct seq_file *m) |
42adb53c | 4237 | { |
887965e6 | 4238 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4239 | } |
4240 | ||
4241 | static int wan_write(char *buf) | |
4242 | { | |
19d337df | 4243 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4244 | } |
4245 | ||
a5763f22 HMH |
4246 | static struct ibm_struct wan_driver_data = { |
4247 | .name = "wan", | |
4248 | .read = wan_read, | |
4249 | .write = wan_write, | |
d3a6ade4 | 4250 | .exit = wan_exit, |
90d9d3c7 | 4251 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4252 | }; |
4253 | ||
0045c0aa HMH |
4254 | /************************************************************************* |
4255 | * UWB subdriver | |
4256 | */ | |
4257 | ||
4258 | enum { | |
4259 | /* ACPI GUWB/SUWB bits */ | |
4260 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4261 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4262 | }; | |
4263 | ||
bee4cd9b HMH |
4264 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4265 | ||
19d337df | 4266 | static int uwb_get_status(void) |
0045c0aa HMH |
4267 | { |
4268 | int status; | |
4269 | ||
0045c0aa HMH |
4270 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4271 | if (dbg_uwbemul) | |
4272 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4273 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4274 | #endif |
4275 | ||
4276 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4277 | return -EIO; | |
4278 | ||
4279 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4280 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4281 | } |
4282 | ||
19d337df | 4283 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4284 | { |
4285 | int status; | |
4286 | ||
bee4cd9b | 4287 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4288 | "will attempt to %s UWB\n", |
4289 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4290 | |
0045c0aa HMH |
4291 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4292 | if (dbg_uwbemul) { | |
19d337df | 4293 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4294 | return 0; |
4295 | } | |
4296 | #endif | |
4297 | ||
19d337df JB |
4298 | if (state == TPACPI_RFK_RADIO_ON) |
4299 | status = TP_ACPI_UWB_RADIOSSW; | |
4300 | else | |
4301 | status = 0; | |
4302 | ||
0045c0aa HMH |
4303 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4304 | return -EIO; | |
4305 | ||
0045c0aa HMH |
4306 | return 0; |
4307 | } | |
4308 | ||
4309 | /* --------------------------------------------------------------------- */ | |
4310 | ||
19d337df JB |
4311 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4312 | .get_status = uwb_get_status, | |
4313 | .set_status = uwb_set_status, | |
4314 | }; | |
0045c0aa HMH |
4315 | |
4316 | static void uwb_exit(void) | |
4317 | { | |
19d337df | 4318 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4319 | } |
4320 | ||
4321 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4322 | { | |
4323 | int res; | |
4324 | int status = 0; | |
4325 | ||
bee4cd9b HMH |
4326 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4327 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4328 | |
4329 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4330 | ||
4331 | tp_features.uwb = hkey_handle && | |
4332 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4333 | ||
bee4cd9b HMH |
4334 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4335 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4336 | str_supported(tp_features.uwb), |
4337 | status); | |
4338 | ||
4339 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4340 | if (dbg_uwbemul) { | |
4341 | tp_features.uwb = 1; | |
4342 | printk(TPACPI_INFO | |
4343 | "uwb switch emulation enabled\n"); | |
4344 | } else | |
4345 | #endif | |
4346 | if (tp_features.uwb && | |
4347 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4348 | /* no uwb hardware present in system */ | |
4349 | tp_features.uwb = 0; | |
4350 | dbg_printk(TPACPI_DBG_INIT, | |
4351 | "uwb hardware not installed\n"); | |
4352 | } | |
4353 | ||
4354 | if (!tp_features.uwb) | |
4355 | return 1; | |
4356 | ||
4357 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4358 | &uwb_tprfk_ops, |
0045c0aa | 4359 | RFKILL_TYPE_UWB, |
bee4cd9b | 4360 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4361 | false); |
0045c0aa HMH |
4362 | return res; |
4363 | } | |
4364 | ||
4365 | static struct ibm_struct uwb_driver_data = { | |
4366 | .name = "uwb", | |
4367 | .exit = uwb_exit, | |
4368 | .flags.experimental = 1, | |
4369 | }; | |
4370 | ||
56b6aeb0 HMH |
4371 | /************************************************************************* |
4372 | * Video subdriver | |
4373 | */ | |
4374 | ||
d7c1d17d HMH |
4375 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4376 | ||
f74a27d4 HMH |
4377 | enum video_access_mode { |
4378 | TPACPI_VIDEO_NONE = 0, | |
4379 | TPACPI_VIDEO_570, /* 570 */ | |
4380 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4381 | TPACPI_VIDEO_NEW, /* all others */ | |
4382 | }; | |
4383 | ||
4384 | enum { /* video status flags, based on VIDEO_570 */ | |
4385 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4386 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4387 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4388 | }; | |
4389 | ||
4390 | enum { /* TPACPI_VIDEO_570 constants */ | |
4391 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4392 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4393 | * video_status_flags */ | |
4394 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4395 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4396 | }; | |
4397 | ||
9a8e1738 HMH |
4398 | static enum video_access_mode video_supported; |
4399 | static int video_orig_autosw; | |
78f81cc4 | 4400 | |
f74a27d4 HMH |
4401 | static int video_autosw_get(void); |
4402 | static int video_autosw_set(int enable); | |
4403 | ||
e0c7dfe7 | 4404 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4405 | |
a5763f22 | 4406 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4407 | { |
78f81cc4 BD |
4408 | int ivga; |
4409 | ||
fe08bc4b HMH |
4410 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4411 | ||
e0c7dfe7 HMH |
4412 | TPACPI_ACPIHANDLE_INIT(vid); |
4413 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4414 | |
78f81cc4 BD |
4415 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4416 | /* G41, assume IVGA doesn't change */ | |
4417 | vid_handle = vid2_handle; | |
4418 | ||
4419 | if (!vid_handle) | |
4420 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4421 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
4422 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
4423 | /* 570 */ | |
efa27145 | 4424 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
4425 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
4426 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4427 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4428 | else |
4429 | /* all others */ | |
efa27145 | 4430 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4431 | |
fe08bc4b HMH |
4432 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4433 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4434 | video_supported); | |
4435 | ||
5fba344c | 4436 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
4437 | } |
4438 | ||
56b6aeb0 HMH |
4439 | static void video_exit(void) |
4440 | { | |
83f34724 HMH |
4441 | dbg_printk(TPACPI_DBG_EXIT, |
4442 | "restoring original video autoswitch mode\n"); | |
4443 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 4444 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 4445 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4446 | } |
4447 | ||
83f34724 | 4448 | static int video_outputsw_get(void) |
1da177e4 LT |
4449 | { |
4450 | int status = 0; | |
4451 | int i; | |
4452 | ||
83f34724 HMH |
4453 | switch (video_supported) { |
4454 | case TPACPI_VIDEO_570: | |
4455 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4456 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4457 | return -EIO; | |
4458 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4459 | break; | |
4460 | case TPACPI_VIDEO_770: | |
4461 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4462 | return -EIO; | |
4463 | if (i) | |
4464 | status |= TP_ACPI_VIDEO_S_LCD; | |
4465 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4466 | return -EIO; | |
4467 | if (i) | |
4468 | status |= TP_ACPI_VIDEO_S_CRT; | |
4469 | break; | |
4470 | case TPACPI_VIDEO_NEW: | |
4471 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4472 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4473 | return -EIO; | |
4474 | if (i) | |
4475 | status |= TP_ACPI_VIDEO_S_CRT; | |
4476 | ||
4477 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4478 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4479 | return -EIO; | |
4480 | if (i) | |
4481 | status |= TP_ACPI_VIDEO_S_LCD; | |
4482 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4483 | return -EIO; | |
4484 | if (i) | |
4485 | status |= TP_ACPI_VIDEO_S_DVI; | |
4486 | break; | |
4487 | default: | |
4488 | return -ENOSYS; | |
78f81cc4 BD |
4489 | } |
4490 | ||
4491 | return status; | |
4492 | } | |
1da177e4 | 4493 | |
83f34724 | 4494 | static int video_outputsw_set(int status) |
78f81cc4 | 4495 | { |
83f34724 HMH |
4496 | int autosw; |
4497 | int res = 0; | |
4498 | ||
4499 | switch (video_supported) { | |
4500 | case TPACPI_VIDEO_570: | |
4501 | res = acpi_evalf(NULL, NULL, | |
4502 | "\\_SB.PHS2", "vdd", | |
4503 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4504 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4505 | break; | |
4506 | case TPACPI_VIDEO_770: | |
4507 | autosw = video_autosw_get(); | |
4508 | if (autosw < 0) | |
4509 | return autosw; | |
1da177e4 | 4510 | |
83f34724 HMH |
4511 | res = video_autosw_set(1); |
4512 | if (res) | |
4513 | return res; | |
4514 | res = acpi_evalf(vid_handle, NULL, | |
4515 | "ASWT", "vdd", status * 0x100, 0); | |
4516 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4517 | printk(TPACPI_ERR |
4518 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
4519 | return -EIO; |
4520 | } | |
4521 | break; | |
4522 | case TPACPI_VIDEO_NEW: | |
4523 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4524 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4525 | break; |
4526 | default: | |
4527 | return -ENOSYS; | |
4528 | } | |
1da177e4 | 4529 | |
83f34724 | 4530 | return (res)? 0 : -EIO; |
1da177e4 LT |
4531 | } |
4532 | ||
83f34724 | 4533 | static int video_autosw_get(void) |
78f81cc4 | 4534 | { |
83f34724 | 4535 | int autosw = 0; |
78f81cc4 | 4536 | |
83f34724 HMH |
4537 | switch (video_supported) { |
4538 | case TPACPI_VIDEO_570: | |
4539 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4540 | return -EIO; | |
4541 | break; | |
4542 | case TPACPI_VIDEO_770: | |
4543 | case TPACPI_VIDEO_NEW: | |
4544 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4545 | return -EIO; | |
4546 | break; | |
4547 | default: | |
4548 | return -ENOSYS; | |
4549 | } | |
78f81cc4 | 4550 | |
83f34724 | 4551 | return autosw & 1; |
78f81cc4 BD |
4552 | } |
4553 | ||
83f34724 | 4554 | static int video_autosw_set(int enable) |
78f81cc4 | 4555 | { |
83f34724 HMH |
4556 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
4557 | return -EIO; | |
4558 | return 0; | |
78f81cc4 BD |
4559 | } |
4560 | ||
83f34724 | 4561 | static int video_outputsw_cycle(void) |
78f81cc4 | 4562 | { |
83f34724 HMH |
4563 | int autosw = video_autosw_get(); |
4564 | int res; | |
78f81cc4 | 4565 | |
83f34724 HMH |
4566 | if (autosw < 0) |
4567 | return autosw; | |
78f81cc4 | 4568 | |
83f34724 HMH |
4569 | switch (video_supported) { |
4570 | case TPACPI_VIDEO_570: | |
4571 | res = video_autosw_set(1); | |
4572 | if (res) | |
4573 | return res; | |
4574 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4575 | break; | |
4576 | case TPACPI_VIDEO_770: | |
4577 | case TPACPI_VIDEO_NEW: | |
4578 | res = video_autosw_set(1); | |
4579 | if (res) | |
4580 | return res; | |
4581 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4582 | break; | |
4583 | default: | |
4584 | return -ENOSYS; | |
4585 | } | |
4586 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4587 | printk(TPACPI_ERR |
4588 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 4589 | return -EIO; |
78f81cc4 BD |
4590 | } |
4591 | ||
83f34724 HMH |
4592 | return (res)? 0 : -EIO; |
4593 | } | |
4594 | ||
4595 | static int video_expand_toggle(void) | |
4596 | { | |
4597 | switch (video_supported) { | |
4598 | case TPACPI_VIDEO_570: | |
4599 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
4600 | 0 : -EIO; | |
4601 | case TPACPI_VIDEO_770: | |
4602 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
4603 | 0 : -EIO; | |
4604 | case TPACPI_VIDEO_NEW: | |
4605 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
4606 | 0 : -EIO; | |
4607 | default: | |
4608 | return -ENOSYS; | |
4609 | } | |
4610 | /* not reached */ | |
78f81cc4 BD |
4611 | } |
4612 | ||
887965e6 | 4613 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4614 | { |
83f34724 | 4615 | int status, autosw; |
56b6aeb0 | 4616 | |
83f34724 | 4617 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4618 | seq_printf(m, "status:\t\tnot supported\n"); |
4619 | return 0; | |
56b6aeb0 HMH |
4620 | } |
4621 | ||
83f34724 HMH |
4622 | status = video_outputsw_get(); |
4623 | if (status < 0) | |
4624 | return status; | |
4625 | ||
4626 | autosw = video_autosw_get(); | |
4627 | if (autosw < 0) | |
4628 | return autosw; | |
4629 | ||
887965e6 AD |
4630 | seq_printf(m, "status:\t\tsupported\n"); |
4631 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4632 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4633 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4634 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
4635 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4636 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
4637 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4638 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4639 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
4640 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
4641 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 4642 | |
887965e6 | 4643 | return 0; |
56b6aeb0 HMH |
4644 | } |
4645 | ||
78f81cc4 | 4646 | static int video_write(char *buf) |
1da177e4 LT |
4647 | { |
4648 | char *cmd; | |
4649 | int enable, disable, status; | |
83f34724 | 4650 | int res; |
1da177e4 | 4651 | |
83f34724 | 4652 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4653 | return -ENODEV; |
4654 | ||
83f34724 HMH |
4655 | enable = 0; |
4656 | disable = 0; | |
1da177e4 LT |
4657 | |
4658 | while ((cmd = next_cmd(&buf))) { | |
4659 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4660 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4661 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4662 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4663 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4664 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4665 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4666 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4667 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4668 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4669 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4670 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4671 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4672 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4673 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4674 | res = video_autosw_set(1); |
4675 | if (res) | |
4676 | return res; | |
1da177e4 | 4677 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4678 | res = video_autosw_set(0); |
4679 | if (res) | |
4680 | return res; | |
1da177e4 | 4681 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4682 | res = video_outputsw_cycle(); |
4683 | if (res) | |
4684 | return res; | |
1da177e4 | 4685 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4686 | res = video_expand_toggle(); |
4687 | if (res) | |
4688 | return res; | |
1da177e4 LT |
4689 | } else |
4690 | return -EINVAL; | |
4691 | } | |
4692 | ||
4693 | if (enable || disable) { | |
83f34724 HMH |
4694 | status = video_outputsw_get(); |
4695 | if (status < 0) | |
4696 | return status; | |
4697 | res = video_outputsw_set((status & ~disable) | enable); | |
4698 | if (res) | |
4699 | return res; | |
1da177e4 LT |
4700 | } |
4701 | ||
4702 | return 0; | |
4703 | } | |
4704 | ||
a5763f22 HMH |
4705 | static struct ibm_struct video_driver_data = { |
4706 | .name = "video", | |
4707 | .read = video_read, | |
4708 | .write = video_write, | |
4709 | .exit = video_exit, | |
4710 | }; | |
4711 | ||
d7c1d17d HMH |
4712 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4713 | ||
56b6aeb0 HMH |
4714 | /************************************************************************* |
4715 | * Light (thinklight) subdriver | |
4716 | */ | |
1da177e4 | 4717 | |
e0c7dfe7 HMH |
4718 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4719 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4720 | |
4fa6811b HMH |
4721 | static int light_get_status(void) |
4722 | { | |
4723 | int status = 0; | |
4724 | ||
4725 | if (tp_features.light_status) { | |
4726 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4727 | return -EIO; | |
4728 | return (!!status); | |
4729 | } | |
4730 | ||
4731 | return -ENXIO; | |
4732 | } | |
4733 | ||
4734 | static int light_set_status(int status) | |
4735 | { | |
4736 | int rc; | |
4737 | ||
4738 | if (tp_features.light) { | |
4739 | if (cmos_handle) { | |
4740 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4741 | (status)? | |
4742 | TP_CMOS_THINKLIGHT_ON : | |
4743 | TP_CMOS_THINKLIGHT_OFF); | |
4744 | } else { | |
4745 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4746 | (status)? 1 : 0); | |
4747 | } | |
4748 | return (rc)? 0 : -EIO; | |
4749 | } | |
4750 | ||
4751 | return -ENXIO; | |
4752 | } | |
4753 | ||
e306501d HMH |
4754 | static void light_set_status_worker(struct work_struct *work) |
4755 | { | |
4756 | struct tpacpi_led_classdev *data = | |
4757 | container_of(work, struct tpacpi_led_classdev, work); | |
4758 | ||
4759 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 4760 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
4761 | } |
4762 | ||
4763 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4764 | enum led_brightness brightness) | |
4765 | { | |
4766 | struct tpacpi_led_classdev *data = | |
4767 | container_of(led_cdev, | |
4768 | struct tpacpi_led_classdev, | |
4769 | led_classdev); | |
75bd3bf2 HMH |
4770 | data->new_state = (brightness != LED_OFF) ? |
4771 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 4772 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4773 | } |
4774 | ||
4775 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4776 | { | |
4777 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4778 | } | |
4779 | ||
4780 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4781 | .led_classdev = { | |
4782 | .name = "tpacpi::thinklight", | |
4783 | .brightness_set = &light_sysfs_set, | |
4784 | .brightness_get = &light_sysfs_get, | |
4785 | } | |
4786 | }; | |
4787 | ||
a5763f22 | 4788 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4789 | { |
9c0a76e1 | 4790 | int rc; |
e306501d | 4791 | |
fe08bc4b HMH |
4792 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4793 | ||
e0c7dfe7 HMH |
4794 | TPACPI_ACPIHANDLE_INIT(ledb); |
4795 | TPACPI_ACPIHANDLE_INIT(lght); | |
4796 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 4797 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4798 | |
78f81cc4 | 4799 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4800 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4801 | |
d8fd94d9 | 4802 | if (tp_features.light) |
78f81cc4 BD |
4803 | /* light status not supported on |
4804 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4805 | tp_features.light_status = |
4806 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4807 | |
9c0a76e1 HMH |
4808 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4809 | str_supported(tp_features.light), | |
4810 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4811 | |
9c0a76e1 HMH |
4812 | if (!tp_features.light) |
4813 | return 1; | |
4814 | ||
4815 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4816 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4817 | |
4818 | if (rc < 0) { | |
4819 | tp_features.light = 0; | |
4820 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4821 | } else { |
4822 | rc = 0; | |
e306501d | 4823 | } |
9c0a76e1 | 4824 | |
e306501d HMH |
4825 | return rc; |
4826 | } | |
4827 | ||
4828 | static void light_exit(void) | |
4829 | { | |
4830 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4831 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4832 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4833 | } |
4834 | ||
887965e6 | 4835 | static int light_read(struct seq_file *m) |
1da177e4 | 4836 | { |
4fa6811b | 4837 | int status; |
1da177e4 | 4838 | |
d8fd94d9 | 4839 | if (!tp_features.light) { |
887965e6 | 4840 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 4841 | } else if (!tp_features.light_status) { |
887965e6 AD |
4842 | seq_printf(m, "status:\t\tunknown\n"); |
4843 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4844 | } else { |
4fa6811b HMH |
4845 | status = light_get_status(); |
4846 | if (status < 0) | |
4847 | return status; | |
887965e6 AD |
4848 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
4849 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4850 | } |
1da177e4 | 4851 | |
887965e6 | 4852 | return 0; |
1da177e4 LT |
4853 | } |
4854 | ||
78f81cc4 | 4855 | static int light_write(char *buf) |
1da177e4 | 4856 | { |
1da177e4 | 4857 | char *cmd; |
4fa6811b | 4858 | int newstatus = 0; |
78f81cc4 | 4859 | |
d8fd94d9 | 4860 | if (!tp_features.light) |
78f81cc4 BD |
4861 | return -ENODEV; |
4862 | ||
1da177e4 LT |
4863 | while ((cmd = next_cmd(&buf))) { |
4864 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4865 | newstatus = 1; |
1da177e4 | 4866 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4867 | newstatus = 0; |
1da177e4 LT |
4868 | } else |
4869 | return -EINVAL; | |
1da177e4 LT |
4870 | } |
4871 | ||
4fa6811b | 4872 | return light_set_status(newstatus); |
1da177e4 LT |
4873 | } |
4874 | ||
a5763f22 HMH |
4875 | static struct ibm_struct light_driver_data = { |
4876 | .name = "light", | |
4877 | .read = light_read, | |
4878 | .write = light_write, | |
e306501d | 4879 | .exit = light_exit, |
a5763f22 HMH |
4880 | }; |
4881 | ||
56b6aeb0 HMH |
4882 | /************************************************************************* |
4883 | * CMOS subdriver | |
4884 | */ | |
4885 | ||
b616004c HMH |
4886 | /* sysfs cmos_command -------------------------------------------------- */ |
4887 | static ssize_t cmos_command_store(struct device *dev, | |
4888 | struct device_attribute *attr, | |
4889 | const char *buf, size_t count) | |
4890 | { | |
4891 | unsigned long cmos_cmd; | |
4892 | int res; | |
4893 | ||
4894 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4895 | return -EINVAL; | |
4896 | ||
4897 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4898 | return (res)? res : count; | |
4899 | } | |
4900 | ||
4901 | static struct device_attribute dev_attr_cmos_command = | |
4902 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4903 | ||
4904 | /* --------------------------------------------------------------------- */ | |
4905 | ||
a5763f22 | 4906 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4907 | { |
b616004c HMH |
4908 | int res; |
4909 | ||
fe08bc4b HMH |
4910 | vdbg_printk(TPACPI_DBG_INIT, |
4911 | "initializing cmos commands subdriver\n"); | |
4912 | ||
e0c7dfe7 | 4913 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4914 | |
fe08bc4b HMH |
4915 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4916 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4917 | |
4918 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4919 | if (res) | |
4920 | return res; | |
4921 | ||
5fba344c HMH |
4922 | return (cmos_handle)? 0 : 1; |
4923 | } | |
4924 | ||
b616004c HMH |
4925 | static void cmos_exit(void) |
4926 | { | |
4927 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4928 | } | |
4929 | ||
887965e6 | 4930 | static int cmos_read(struct seq_file *m) |
1da177e4 | 4931 | { |
78f81cc4 BD |
4932 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4933 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 4934 | if (!cmos_handle) |
887965e6 | 4935 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 4936 | else { |
887965e6 AD |
4937 | seq_printf(m, "status:\t\tsupported\n"); |
4938 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
4939 | } |
4940 | ||
887965e6 | 4941 | return 0; |
1da177e4 LT |
4942 | } |
4943 | ||
78f81cc4 | 4944 | static int cmos_write(char *buf) |
1da177e4 LT |
4945 | { |
4946 | char *cmd; | |
c9bea99c | 4947 | int cmos_cmd, res; |
1da177e4 LT |
4948 | |
4949 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4950 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4951 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4952 | /* cmos_cmd set */ |
4953 | } else | |
4954 | return -EINVAL; | |
4955 | ||
c9bea99c HMH |
4956 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4957 | if (res) | |
4958 | return res; | |
1da177e4 LT |
4959 | } |
4960 | ||
4961 | return 0; | |
78f81cc4 BD |
4962 | } |
4963 | ||
a5763f22 HMH |
4964 | static struct ibm_struct cmos_driver_data = { |
4965 | .name = "cmos", | |
4966 | .read = cmos_read, | |
4967 | .write = cmos_write, | |
b616004c | 4968 | .exit = cmos_exit, |
a5763f22 | 4969 | }; |
56b6aeb0 HMH |
4970 | |
4971 | /************************************************************************* | |
4972 | * LED subdriver | |
4973 | */ | |
4974 | ||
f74a27d4 HMH |
4975 | enum led_access_mode { |
4976 | TPACPI_LED_NONE = 0, | |
4977 | TPACPI_LED_570, /* 570 */ | |
4978 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4979 | TPACPI_LED_NEW, /* all others */ | |
4980 | }; | |
4981 | ||
4982 | enum { /* For TPACPI_LED_OLD */ | |
4983 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
4984 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
4985 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
4986 | }; | |
4987 | ||
9a8e1738 | 4988 | static enum led_access_mode led_supported; |
78f81cc4 | 4989 | |
e0c7dfe7 | 4990 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
4991 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
4992 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
4993 | "LED", /* all others */ |
4994 | ); /* R30, R31 */ | |
4995 | ||
f21179a4 | 4996 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
4997 | static struct tpacpi_led_classdev *tpacpi_leds; |
4998 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 4999 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5000 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5001 | "tpacpi::power", | |
5002 | "tpacpi:orange:batt", | |
5003 | "tpacpi:green:batt", | |
5004 | "tpacpi::dock_active", | |
5005 | "tpacpi::bay_active", | |
5006 | "tpacpi::dock_batt", | |
5007 | "tpacpi::unknown_led", | |
5008 | "tpacpi::standby", | |
f21179a4 HMH |
5009 | "tpacpi::dock_status1", |
5010 | "tpacpi::dock_status2", | |
5011 | "tpacpi::unknown_led2", | |
5012 | "tpacpi::unknown_led3", | |
5013 | "tpacpi::thinkvantage", | |
af116101 | 5014 | }; |
f21179a4 | 5015 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5016 | |
5017 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5018 | { | |
5019 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5020 | return false; | |
5021 | #else | |
f21179a4 | 5022 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5023 | #endif |
5024 | } | |
af116101 | 5025 | |
24e45bbe | 5026 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5027 | { |
5028 | int status; | |
af116101 | 5029 | enum led_status_t led_s; |
4fa6811b HMH |
5030 | |
5031 | switch (led_supported) { | |
5032 | case TPACPI_LED_570: | |
5033 | if (!acpi_evalf(ec_handle, | |
5034 | &status, "GLED", "dd", 1 << led)) | |
5035 | return -EIO; | |
af116101 | 5036 | led_s = (status == 0)? |
4fa6811b HMH |
5037 | TPACPI_LED_OFF : |
5038 | ((status == 1)? | |
5039 | TPACPI_LED_ON : | |
5040 | TPACPI_LED_BLINK); | |
af116101 HMH |
5041 | tpacpi_led_state_cache[led] = led_s; |
5042 | return led_s; | |
4fa6811b HMH |
5043 | default: |
5044 | return -ENXIO; | |
5045 | } | |
5046 | ||
5047 | /* not reached */ | |
5048 | } | |
5049 | ||
24e45bbe HMH |
5050 | static int led_set_status(const unsigned int led, |
5051 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5052 | { |
5053 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5054 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5055 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5056 | |
5057 | int rc = 0; | |
5058 | ||
5059 | switch (led_supported) { | |
5060 | case TPACPI_LED_570: | |
24e45bbe | 5061 | /* 570 */ |
a4d5effc | 5062 | if (unlikely(led > 7)) |
24e45bbe | 5063 | return -EINVAL; |
a4d5effc HMH |
5064 | if (unlikely(tpacpi_is_led_restricted(led))) |
5065 | return -EPERM; | |
24e45bbe HMH |
5066 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5067 | (1 << led), led_sled_arg1[ledstatus])) | |
5068 | rc = -EIO; | |
5069 | break; | |
4fa6811b | 5070 | case TPACPI_LED_OLD: |
24e45bbe | 5071 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
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 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5077 | if (rc >= 0) | |
5078 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5079 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5080 | if (rc >= 0) | |
5081 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5082 | (ledstatus != TPACPI_LED_OFF) << led); | |
5083 | break; | |
4fa6811b | 5084 | case TPACPI_LED_NEW: |
24e45bbe | 5085 | /* all others */ |
a4d5effc HMH |
5086 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5087 | return -EINVAL; | |
5088 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5089 | return -EPERM; | |
24e45bbe HMH |
5090 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5091 | led, led_led_arg1[ledstatus])) | |
5092 | rc = -EIO; | |
5093 | break; | |
4fa6811b HMH |
5094 | default: |
5095 | rc = -ENXIO; | |
5096 | } | |
5097 | ||
af116101 HMH |
5098 | if (!rc) |
5099 | tpacpi_led_state_cache[led] = ledstatus; | |
5100 | ||
5101 | return rc; | |
5102 | } | |
5103 | ||
af116101 HMH |
5104 | static void led_set_status_worker(struct work_struct *work) |
5105 | { | |
5106 | struct tpacpi_led_classdev *data = | |
5107 | container_of(work, struct tpacpi_led_classdev, work); | |
5108 | ||
5109 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5110 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5111 | } |
5112 | ||
5113 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5114 | enum led_brightness brightness) | |
5115 | { | |
5116 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5117 | struct tpacpi_led_classdev, led_classdev); | |
5118 | ||
75bd3bf2 HMH |
5119 | if (brightness == LED_OFF) |
5120 | data->new_state = TPACPI_LED_OFF; | |
5121 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5122 | data->new_state = TPACPI_LED_ON; | |
5123 | else | |
5124 | data->new_state = TPACPI_LED_BLINK; | |
5125 | ||
e0e3c061 | 5126 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5127 | } |
5128 | ||
5129 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5130 | unsigned long *delay_on, unsigned long *delay_off) | |
5131 | { | |
5132 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5133 | struct tpacpi_led_classdev, led_classdev); | |
5134 | ||
5135 | /* Can we choose the flash rate? */ | |
5136 | if (*delay_on == 0 && *delay_off == 0) { | |
5137 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5138 | *delay_on = 500; /* ms */ | |
5139 | *delay_off = 500; /* ms */ | |
5140 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5141 | return -EINVAL; | |
5142 | ||
75bd3bf2 | 5143 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5144 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5145 | |
5146 | return 0; | |
5147 | } | |
5148 | ||
5149 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5150 | { | |
5151 | int rc; | |
5152 | ||
5153 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5154 | struct tpacpi_led_classdev, led_classdev); | |
5155 | ||
5156 | rc = led_get_status(data->led); | |
5157 | ||
5158 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5159 | rc = LED_OFF; /* no error handling in led class :( */ | |
5160 | else | |
5161 | rc = LED_FULL; | |
5162 | ||
4fa6811b HMH |
5163 | return rc; |
5164 | } | |
5165 | ||
af116101 HMH |
5166 | static void led_exit(void) |
5167 | { | |
5168 | unsigned int i; | |
5169 | ||
5170 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5171 | if (tpacpi_leds[i].led_classdev.name) | |
5172 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5173 | } | |
5174 | ||
5175 | kfree(tpacpi_leds); | |
af116101 HMH |
5176 | } |
5177 | ||
a4d5effc HMH |
5178 | static int __init tpacpi_init_led(unsigned int led) |
5179 | { | |
5180 | int rc; | |
5181 | ||
5182 | tpacpi_leds[led].led = led; | |
5183 | ||
f21179a4 HMH |
5184 | /* LEDs with no name don't get registered */ |
5185 | if (!tpacpi_led_names[led]) | |
5186 | return 0; | |
5187 | ||
a4d5effc HMH |
5188 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5189 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5190 | if (led_supported == TPACPI_LED_570) | |
5191 | tpacpi_leds[led].led_classdev.brightness_get = | |
5192 | &led_sysfs_get; | |
5193 | ||
5194 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5195 | ||
5196 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5197 | ||
5198 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5199 | &tpacpi_leds[led].led_classdev); | |
5200 | if (rc < 0) | |
5201 | tpacpi_leds[led].led_classdev.name = NULL; | |
5202 | ||
5203 | return rc; | |
5204 | } | |
5205 | ||
f21179a4 HMH |
5206 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5207 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5208 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5209 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5210 | ||
5211 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5212 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5213 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5214 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5215 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5216 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5217 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5218 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5219 | ||
5220 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5221 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5222 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5223 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5224 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5225 | ||
5226 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5227 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5228 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5229 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5230 | ||
5231 | /* (1) - may have excess leds enabled on MSB */ | |
5232 | ||
5233 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5234 | { /* Lenovo */ | |
5235 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5236 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5237 | .quirks = 0x1fffU, | |
5238 | }, | |
5239 | { /* IBM ThinkPads with no EC version string */ | |
5240 | .vendor = PCI_VENDOR_ID_IBM, | |
5241 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5242 | .quirks = 0x00ffU, | |
5243 | }, | |
5244 | { /* IBM ThinkPads with EC version string */ | |
5245 | .vendor = PCI_VENDOR_ID_IBM, | |
5246 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5247 | .quirks = 0x00bfU, | |
5248 | }, | |
5249 | }; | |
5250 | ||
5251 | #undef TPACPI_LEDQ_IBM | |
5252 | #undef TPACPI_LEDQ_LNV | |
5253 | ||
a5763f22 | 5254 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5255 | { |
af116101 HMH |
5256 | unsigned int i; |
5257 | int rc; | |
f21179a4 | 5258 | unsigned long useful_leds; |
af116101 | 5259 | |
fe08bc4b HMH |
5260 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5261 | ||
e0c7dfe7 | 5262 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 5263 | |
78f81cc4 BD |
5264 | if (!led_handle) |
5265 | /* led not supported on R30, R31 */ | |
efa27145 | 5266 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
5267 | else if (strlencmp(led_path, "SLED") == 0) |
5268 | /* 570 */ | |
efa27145 | 5269 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
5270 | else if (strlencmp(led_path, "SYSL") == 0) |
5271 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 5272 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
5273 | else |
5274 | /* all others */ | |
efa27145 | 5275 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 5276 | |
fe08bc4b HMH |
5277 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5278 | str_supported(led_supported), led_supported); | |
5279 | ||
f21179a4 HMH |
5280 | if (led_supported == TPACPI_LED_NONE) |
5281 | return 1; | |
5282 | ||
af116101 HMH |
5283 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5284 | GFP_KERNEL); | |
5285 | if (!tpacpi_leds) { | |
5286 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
5287 | return -ENOMEM; | |
5288 | } | |
5289 | ||
f21179a4 HMH |
5290 | useful_leds = tpacpi_check_quirks(led_useful_qtable, |
5291 | ARRAY_SIZE(led_useful_qtable)); | |
5292 | ||
af116101 | 5293 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
f21179a4 HMH |
5294 | if (!tpacpi_is_led_restricted(i) && |
5295 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5296 | rc = tpacpi_init_led(i); |
5297 | if (rc < 0) { | |
5298 | led_exit(); | |
5299 | return rc; | |
5300 | } | |
af116101 HMH |
5301 | } |
5302 | } | |
5303 | ||
a4d5effc | 5304 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
f21179a4 HMH |
5305 | printk(TPACPI_NOTICE |
5306 | "warning: userspace override of important " | |
5307 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5308 | #endif |
f21179a4 | 5309 | return 0; |
78f81cc4 BD |
5310 | } |
5311 | ||
4fa6811b HMH |
5312 | #define str_led_status(s) \ |
5313 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5314 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5315 | |
887965e6 | 5316 | static int led_read(struct seq_file *m) |
1da177e4 | 5317 | { |
78f81cc4 | 5318 | if (!led_supported) { |
887965e6 AD |
5319 | seq_printf(m, "status:\t\tnot supported\n"); |
5320 | return 0; | |
78f81cc4 | 5321 | } |
887965e6 | 5322 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5323 | |
efa27145 | 5324 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5325 | /* 570 */ |
5326 | int i, status; | |
5327 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5328 | status = led_get_status(i); |
5329 | if (status < 0) | |
78f81cc4 | 5330 | return -EIO; |
887965e6 | 5331 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5332 | i, str_led_status(status)); |
78f81cc4 BD |
5333 | } |
5334 | } | |
5335 | ||
887965e6 | 5336 | seq_printf(m, "commands:\t" |
f21179a4 | 5337 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5338 | |
887965e6 | 5339 | return 0; |
1da177e4 LT |
5340 | } |
5341 | ||
78f81cc4 | 5342 | static int led_write(char *buf) |
1da177e4 LT |
5343 | { |
5344 | char *cmd; | |
4fa6811b HMH |
5345 | int led, rc; |
5346 | enum led_status_t s; | |
78f81cc4 BD |
5347 | |
5348 | if (!led_supported) | |
5349 | return -ENODEV; | |
1da177e4 LT |
5350 | |
5351 | while ((cmd = next_cmd(&buf))) { | |
f21179a4 | 5352 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 15) |
1da177e4 LT |
5353 | return -EINVAL; |
5354 | ||
78f81cc4 | 5355 | if (strstr(cmd, "off")) { |
4fa6811b | 5356 | s = TPACPI_LED_OFF; |
1da177e4 | 5357 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5358 | s = TPACPI_LED_ON; |
78f81cc4 | 5359 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5360 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5361 | } else { |
4fa6811b | 5362 | return -EINVAL; |
78f81cc4 | 5363 | } |
4fa6811b HMH |
5364 | |
5365 | rc = led_set_status(led, s); | |
5366 | if (rc < 0) | |
5367 | return rc; | |
78f81cc4 BD |
5368 | } |
5369 | ||
5370 | return 0; | |
5371 | } | |
5372 | ||
a5763f22 HMH |
5373 | static struct ibm_struct led_driver_data = { |
5374 | .name = "led", | |
5375 | .read = led_read, | |
5376 | .write = led_write, | |
af116101 | 5377 | .exit = led_exit, |
a5763f22 HMH |
5378 | }; |
5379 | ||
56b6aeb0 HMH |
5380 | /************************************************************************* |
5381 | * Beep subdriver | |
5382 | */ | |
5383 | ||
e0c7dfe7 | 5384 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5385 | |
60201732 HMH |
5386 | #define TPACPI_BEEP_Q1 0x0001 |
5387 | ||
5388 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5389 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5390 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5391 | }; | |
5392 | ||
a5763f22 | 5393 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5394 | { |
60201732 HMH |
5395 | unsigned long quirks; |
5396 | ||
fe08bc4b HMH |
5397 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5398 | ||
e0c7dfe7 | 5399 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5400 | |
fe08bc4b HMH |
5401 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5402 | str_supported(beep_handle != NULL)); | |
5403 | ||
60201732 HMH |
5404 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5405 | ARRAY_SIZE(beep_quirk_table)); | |
5406 | ||
5407 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5408 | ||
5fba344c HMH |
5409 | return (beep_handle)? 0 : 1; |
5410 | } | |
5411 | ||
887965e6 | 5412 | static int beep_read(struct seq_file *m) |
78f81cc4 | 5413 | { |
78f81cc4 | 5414 | if (!beep_handle) |
887965e6 | 5415 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 5416 | else { |
887965e6 AD |
5417 | seq_printf(m, "status:\t\tsupported\n"); |
5418 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
5419 | } |
5420 | ||
887965e6 | 5421 | return 0; |
78f81cc4 BD |
5422 | } |
5423 | ||
5424 | static int beep_write(char *buf) | |
5425 | { | |
5426 | char *cmd; | |
5427 | int beep_cmd; | |
5428 | ||
5429 | if (!beep_handle) | |
5430 | return -ENODEV; | |
5431 | ||
5432 | while ((cmd = next_cmd(&buf))) { | |
5433 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5434 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5435 | /* beep_cmd set */ | |
5436 | } else | |
5437 | return -EINVAL; | |
60201732 HMH |
5438 | if (tp_features.beep_needs_two_args) { |
5439 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5440 | beep_cmd, 0)) | |
5441 | return -EIO; | |
5442 | } else { | |
5443 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5444 | beep_cmd)) | |
5445 | return -EIO; | |
5446 | } | |
78f81cc4 BD |
5447 | } |
5448 | ||
5449 | return 0; | |
5450 | } | |
5451 | ||
a5763f22 HMH |
5452 | static struct ibm_struct beep_driver_data = { |
5453 | .name = "beep", | |
5454 | .read = beep_read, | |
5455 | .write = beep_write, | |
5456 | }; | |
5457 | ||
56b6aeb0 HMH |
5458 | /************************************************************************* |
5459 | * Thermal subdriver | |
5460 | */ | |
78f81cc4 | 5461 | |
f74a27d4 HMH |
5462 | enum thermal_access_mode { |
5463 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5464 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5465 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5466 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5467 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5468 | }; | |
5469 | ||
5470 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5471 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5472 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5473 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5474 | |
5475 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5476 | }; |
5477 | ||
9ebd9e83 | 5478 | |
f74a27d4 HMH |
5479 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5480 | struct ibm_thermal_sensors_struct { | |
5481 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5482 | }; | |
5483 | ||
a26f878a | 5484 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5485 | |
b21a15f6 HMH |
5486 | /* idx is zero-based */ |
5487 | static int thermal_get_sensor(int idx, s32 *value) | |
5488 | { | |
5489 | int t; | |
5490 | s8 tmp; | |
5491 | char tmpi[5]; | |
5492 | ||
5493 | t = TP_EC_THERMAL_TMP0; | |
5494 | ||
5495 | switch (thermal_read_mode) { | |
5496 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5497 | case TPACPI_THERMAL_TPEC_16: | |
5498 | if (idx >= 8 && idx <= 15) { | |
5499 | t = TP_EC_THERMAL_TMP8; | |
5500 | idx -= 8; | |
5501 | } | |
5502 | /* fallthrough */ | |
5503 | #endif | |
5504 | case TPACPI_THERMAL_TPEC_8: | |
5505 | if (idx <= 7) { | |
5506 | if (!acpi_ec_read(t + idx, &tmp)) | |
5507 | return -EIO; | |
5508 | *value = tmp * 1000; | |
5509 | return 0; | |
5510 | } | |
5511 | break; | |
5512 | ||
5513 | case TPACPI_THERMAL_ACPI_UPDT: | |
5514 | if (idx <= 7) { | |
5515 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5516 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5517 | return -EIO; | |
5518 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5519 | return -EIO; | |
5520 | *value = (t - 2732) * 100; | |
5521 | return 0; | |
5522 | } | |
5523 | break; | |
5524 | ||
5525 | case TPACPI_THERMAL_ACPI_TMP07: | |
5526 | if (idx <= 7) { | |
5527 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5528 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5529 | return -EIO; | |
5530 | if (t > 127 || t < -127) | |
5531 | t = TP_EC_THERMAL_TMP_NA; | |
5532 | *value = t * 1000; | |
5533 | return 0; | |
5534 | } | |
5535 | break; | |
5536 | ||
5537 | case TPACPI_THERMAL_NONE: | |
5538 | default: | |
5539 | return -ENOSYS; | |
5540 | } | |
5541 | ||
5542 | return -EINVAL; | |
5543 | } | |
5544 | ||
5545 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5546 | { | |
5547 | int res, i; | |
5548 | int n; | |
5549 | ||
5550 | n = 8; | |
5551 | i = 0; | |
5552 | ||
5553 | if (!s) | |
5554 | return -EINVAL; | |
5555 | ||
5556 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5557 | n = 16; | |
5558 | ||
35ff8b9f | 5559 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5560 | res = thermal_get_sensor(i, &s->temp[i]); |
5561 | if (res) | |
5562 | return res; | |
5563 | } | |
5564 | ||
5565 | return n; | |
5566 | } | |
f74a27d4 | 5567 | |
9ebd9e83 HMH |
5568 | static void thermal_dump_all_sensors(void) |
5569 | { | |
5570 | int n, i; | |
5571 | struct ibm_thermal_sensors_struct t; | |
5572 | ||
5573 | n = thermal_get_sensors(&t); | |
5574 | if (n <= 0) | |
5575 | return; | |
5576 | ||
5577 | printk(TPACPI_NOTICE | |
5578 | "temperatures (Celsius):"); | |
5579 | ||
5580 | for (i = 0; i < n; i++) { | |
5581 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
5582 | printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); | |
5583 | else | |
5584 | printk(KERN_CONT " N/A"); | |
5585 | } | |
5586 | ||
5587 | printk(KERN_CONT "\n"); | |
5588 | } | |
5589 | ||
2c37aa4e HMH |
5590 | /* sysfs temp##_input -------------------------------------------------- */ |
5591 | ||
5592 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5593 | struct device_attribute *attr, | |
5594 | char *buf) | |
5595 | { | |
5596 | struct sensor_device_attribute *sensor_attr = | |
5597 | to_sensor_dev_attr(attr); | |
5598 | int idx = sensor_attr->index; | |
5599 | s32 value; | |
5600 | int res; | |
5601 | ||
5602 | res = thermal_get_sensor(idx, &value); | |
5603 | if (res) | |
5604 | return res; | |
9ebd9e83 | 5605 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5606 | return -ENXIO; |
5607 | ||
5608 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5609 | } | |
5610 | ||
5611 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5612 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5613 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5614 | |
5615 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5616 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5617 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5618 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5619 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5620 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5621 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5622 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5623 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5624 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5625 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5626 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5627 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5628 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5629 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5630 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5631 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5632 | }; | |
5633 | ||
5634 | #define THERMAL_ATTRS(X) \ | |
5635 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5636 | ||
5637 | static struct attribute *thermal_temp_input_attr[] = { | |
5638 | THERMAL_ATTRS(8), | |
5639 | THERMAL_ATTRS(9), | |
5640 | THERMAL_ATTRS(10), | |
5641 | THERMAL_ATTRS(11), | |
5642 | THERMAL_ATTRS(12), | |
5643 | THERMAL_ATTRS(13), | |
5644 | THERMAL_ATTRS(14), | |
5645 | THERMAL_ATTRS(15), | |
5646 | THERMAL_ATTRS(0), | |
5647 | THERMAL_ATTRS(1), | |
5648 | THERMAL_ATTRS(2), | |
5649 | THERMAL_ATTRS(3), | |
5650 | THERMAL_ATTRS(4), | |
5651 | THERMAL_ATTRS(5), | |
5652 | THERMAL_ATTRS(6), | |
5653 | THERMAL_ATTRS(7), | |
5654 | NULL | |
5655 | }; | |
5656 | ||
5657 | static const struct attribute_group thermal_temp_input16_group = { | |
5658 | .attrs = thermal_temp_input_attr | |
5659 | }; | |
5660 | ||
5661 | static const struct attribute_group thermal_temp_input8_group = { | |
5662 | .attrs = &thermal_temp_input_attr[8] | |
5663 | }; | |
5664 | ||
5665 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5666 | #undef THERMAL_ATTRS | |
5667 | ||
5668 | /* --------------------------------------------------------------------- */ | |
5669 | ||
a5763f22 | 5670 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5671 | { |
60eb0b35 HMH |
5672 | u8 t, ta1, ta2; |
5673 | int i; | |
5fba344c | 5674 | int acpi_tmp7; |
2c37aa4e | 5675 | int res; |
5fba344c | 5676 | |
fe08bc4b HMH |
5677 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5678 | ||
5fba344c | 5679 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5680 | |
3d6f99ca | 5681 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5682 | /* |
5683 | * Direct EC access mode: sensors at registers | |
5684 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5685 | * non-implemented, thermal sensors return 0x80 when | |
5686 | * not available | |
5687 | */ | |
78f81cc4 | 5688 | |
60eb0b35 HMH |
5689 | ta1 = ta2 = 0; |
5690 | for (i = 0; i < 8; i++) { | |
04cc862c | 5691 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5692 | ta1 |= t; |
5693 | } else { | |
5694 | ta1 = 0; | |
5695 | break; | |
5696 | } | |
04cc862c | 5697 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5698 | ta2 |= t; |
5699 | } else { | |
5700 | ta1 = 0; | |
5701 | break; | |
5702 | } | |
5703 | } | |
5704 | if (ta1 == 0) { | |
5705 | /* This is sheer paranoia, but we handle it anyway */ | |
5706 | if (acpi_tmp7) { | |
e0c7dfe7 | 5707 | printk(TPACPI_ERR |
60eb0b35 | 5708 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5709 | "falling back to ACPI TMPx access " |
5710 | "mode\n"); | |
efa27145 | 5711 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5712 | } else { |
e0c7dfe7 | 5713 | printk(TPACPI_ERR |
60eb0b35 HMH |
5714 | "ThinkPad ACPI EC access misbehaving, " |
5715 | "disabling thermal sensors access\n"); | |
efa27145 | 5716 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5717 | } |
5718 | } else { | |
5719 | thermal_read_mode = | |
5720 | (ta2 != 0) ? | |
efa27145 | 5721 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5722 | } |
5723 | } else if (acpi_tmp7) { | |
a26f878a HMH |
5724 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
5725 | /* 600e/x, 770e, 770x */ | |
efa27145 | 5726 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
5727 | } else { |
5728 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 5729 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5730 | } |
5731 | } else { | |
5732 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5733 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5734 | } |
78f81cc4 | 5735 | |
fe08bc4b HMH |
5736 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5737 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5738 | thermal_read_mode); | |
5739 | ||
35ff8b9f | 5740 | switch (thermal_read_mode) { |
2c37aa4e | 5741 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5742 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5743 | &thermal_temp_input16_group); |
5744 | if (res) | |
5745 | return res; | |
5746 | break; | |
5747 | case TPACPI_THERMAL_TPEC_8: | |
5748 | case TPACPI_THERMAL_ACPI_TMP07: | |
5749 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5750 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5751 | &thermal_temp_input8_group); |
5752 | if (res) | |
5753 | return res; | |
5754 | break; | |
5755 | case TPACPI_THERMAL_NONE: | |
5756 | default: | |
5757 | return 1; | |
5758 | } | |
5759 | ||
5760 | return 0; | |
5761 | } | |
5762 | ||
5763 | static void thermal_exit(void) | |
5764 | { | |
35ff8b9f | 5765 | switch (thermal_read_mode) { |
2c37aa4e | 5766 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5767 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5768 | &thermal_temp_input16_group); |
5769 | break; | |
5770 | case TPACPI_THERMAL_TPEC_8: | |
5771 | case TPACPI_THERMAL_ACPI_TMP07: | |
5772 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5773 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5774 | &thermal_temp_input16_group); |
5775 | break; | |
5776 | case TPACPI_THERMAL_NONE: | |
5777 | default: | |
5778 | break; | |
5779 | } | |
78f81cc4 BD |
5780 | } |
5781 | ||
887965e6 | 5782 | static int thermal_read(struct seq_file *m) |
a26f878a | 5783 | { |
a26f878a HMH |
5784 | int n, i; |
5785 | struct ibm_thermal_sensors_struct t; | |
5786 | ||
5787 | n = thermal_get_sensors(&t); | |
5788 | if (unlikely(n < 0)) | |
5789 | return n; | |
5790 | ||
887965e6 | 5791 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
5792 | |
5793 | if (n > 0) { | |
5794 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
5795 | seq_printf(m, "%d ", t.temp[i] / 1000); |
5796 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 5797 | } else |
887965e6 | 5798 | seq_printf(m, "not supported\n"); |
78f81cc4 | 5799 | |
887965e6 | 5800 | return 0; |
78f81cc4 BD |
5801 | } |
5802 | ||
a5763f22 HMH |
5803 | static struct ibm_struct thermal_driver_data = { |
5804 | .name = "thermal", | |
5805 | .read = thermal_read, | |
2c37aa4e | 5806 | .exit = thermal_exit, |
a5763f22 HMH |
5807 | }; |
5808 | ||
56b6aeb0 HMH |
5809 | /************************************************************************* |
5810 | * EC Dump subdriver | |
5811 | */ | |
5812 | ||
78f81cc4 BD |
5813 | static u8 ecdump_regs[256]; |
5814 | ||
887965e6 | 5815 | static int ecdump_read(struct seq_file *m) |
78f81cc4 | 5816 | { |
78f81cc4 BD |
5817 | int i, j; |
5818 | u8 v; | |
5819 | ||
887965e6 | 5820 | seq_printf(m, "EC " |
78f81cc4 BD |
5821 | " +00 +01 +02 +03 +04 +05 +06 +07" |
5822 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
5823 | for (i = 0; i < 256; i += 16) { | |
887965e6 | 5824 | seq_printf(m, "EC 0x%02x:", i); |
78f81cc4 BD |
5825 | for (j = 0; j < 16; j++) { |
5826 | if (!acpi_ec_read(i + j, &v)) | |
5827 | break; | |
5828 | if (v != ecdump_regs[i + j]) | |
887965e6 | 5829 | seq_printf(m, " *%02x", v); |
78f81cc4 | 5830 | else |
887965e6 | 5831 | seq_printf(m, " %02x", v); |
78f81cc4 BD |
5832 | ecdump_regs[i + j] = v; |
5833 | } | |
887965e6 | 5834 | seq_putc(m, '\n'); |
78f81cc4 BD |
5835 | if (j != 16) |
5836 | break; | |
5837 | } | |
5838 | ||
5839 | /* These are way too dangerous to advertise openly... */ | |
5840 | #if 0 | |
887965e6 | 5841 | seq_printf(m, "commands:\t0x<offset> 0x<value>" |
78f81cc4 | 5842 | " (<offset> is 00-ff, <value> is 00-ff)\n"); |
887965e6 | 5843 | seq_printf(m, "commands:\t0x<offset> <value> " |
78f81cc4 BD |
5844 | " (<offset> is 00-ff, <value> is 0-255)\n"); |
5845 | #endif | |
887965e6 | 5846 | return 0; |
78f81cc4 BD |
5847 | } |
5848 | ||
5849 | static int ecdump_write(char *buf) | |
5850 | { | |
5851 | char *cmd; | |
5852 | int i, v; | |
5853 | ||
5854 | while ((cmd = next_cmd(&buf))) { | |
5855 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
5856 | /* i and v set */ | |
5857 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
5858 | /* i and v set */ | |
5859 | } else | |
5860 | return -EINVAL; | |
5861 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
5862 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
5863 | return -EIO; |
5864 | } else | |
5865 | return -EINVAL; | |
5866 | } | |
5867 | ||
5868 | return 0; | |
78f81cc4 BD |
5869 | } |
5870 | ||
a5763f22 HMH |
5871 | static struct ibm_struct ecdump_driver_data = { |
5872 | .name = "ecdump", | |
5873 | .read = ecdump_read, | |
5874 | .write = ecdump_write, | |
92641177 | 5875 | .flags.experimental = 1, |
a5763f22 HMH |
5876 | }; |
5877 | ||
56b6aeb0 HMH |
5878 | /************************************************************************* |
5879 | * Backlight/brightness subdriver | |
5880 | */ | |
5881 | ||
f74a27d4 HMH |
5882 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5883 | ||
0e501834 HMH |
5884 | /* |
5885 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
5886 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
5887 | * | |
5888 | * EC HBRV (0x31) has the following layout | |
5889 | * Bit 7: unknown function | |
5890 | * Bit 6: unknown function | |
5891 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5892 | * Bit 4: must be set to zero to avoid problems | |
5893 | * Bit 3-0: backlight brightness level | |
5894 | * | |
5895 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
5896 | * |
5897 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
5898 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
5899 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
5900 | */ |
5901 | ||
e11aecf1 HMH |
5902 | enum { |
5903 | TP_EC_BACKLIGHT = 0x31, | |
5904 | ||
5905 | /* TP_EC_BACKLIGHT bitmasks */ | |
5906 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5907 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5908 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5909 | }; | |
5910 | ||
0e501834 HMH |
5911 | enum tpacpi_brightness_access_mode { |
5912 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
5913 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
5914 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
5915 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
5916 | TPACPI_BRGHT_MODE_MAX | |
5917 | }; | |
5918 | ||
94954cc6 | 5919 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
5920 | |
5921 | static enum tpacpi_brightness_access_mode brightness_mode = | |
5922 | TPACPI_BRGHT_MODE_MAX; | |
5923 | ||
f74a27d4 HMH |
5924 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
5925 | ||
b21a15f6 | 5926 | static struct mutex brightness_mutex; |
56b6aeb0 | 5927 | |
0e501834 HMH |
5928 | /* NVRAM brightness access, |
5929 | * call with brightness_mutex held! */ | |
5930 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 5931 | { |
0e501834 | 5932 | u8 lnvram; |
b21a15f6 | 5933 | |
0e501834 HMH |
5934 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
5935 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5936 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5937 | lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07; | |
5938 | ||
5939 | return lnvram; | |
5940 | } | |
5941 | ||
5942 | static void tpacpi_brightness_checkpoint_nvram(void) | |
5943 | { | |
5944 | u8 lec = 0; | |
5945 | u8 b_nvram; | |
5946 | ||
5947 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
5948 | return; | |
5949 | ||
5950 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5951 | "trying to checkpoint backlight level to NVRAM...\n"); | |
5952 | ||
5953 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
5954 | return; | |
5955 | ||
5956 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
5957 | goto unlock; | |
5958 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
5959 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
5960 | ||
5961 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5962 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
5963 | /* NVRAM needs update */ | |
5964 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
5965 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
5966 | b_nvram |= lec; | |
5967 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
5968 | dbg_printk(TPACPI_DBG_BRGHT, | |
5969 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
5970 | (unsigned int) lec, (unsigned int) b_nvram); | |
5971 | } else | |
5972 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5973 | "NVRAM backlight level already is %u (0x%02x)\n", | |
5974 | (unsigned int) lec, (unsigned int) b_nvram); | |
5975 | ||
5976 | unlock: | |
5977 | mutex_unlock(&brightness_mutex); | |
5978 | } | |
5979 | ||
5980 | ||
5981 | /* call with brightness_mutex held! */ | |
5982 | static int tpacpi_brightness_get_raw(int *status) | |
5983 | { | |
5984 | u8 lec = 0; | |
5985 | ||
5986 | switch (brightness_mode) { | |
5987 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
5988 | *status = tpacpi_brightness_nvram_get(); | |
5989 | return 0; | |
5990 | case TPACPI_BRGHT_MODE_EC: | |
5991 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
5992 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 5993 | return -EIO; |
0e501834 HMH |
5994 | *status = lec; |
5995 | return 0; | |
5996 | default: | |
5997 | return -ENXIO; | |
b21a15f6 | 5998 | } |
0e501834 HMH |
5999 | } |
6000 | ||
6001 | /* call with brightness_mutex held! */ | |
6002 | /* do NOT call with illegal backlight level value */ | |
6003 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6004 | { | |
6005 | u8 lec = 0; | |
6006 | ||
6007 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6008 | return -EIO; | |
6009 | ||
6010 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6011 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6012 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6013 | return -EIO; | |
6014 | ||
6015 | return 0; | |
6016 | } | |
6017 | ||
6018 | /* call with brightness_mutex held! */ | |
6019 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6020 | { | |
6021 | int cmos_cmd, inc; | |
6022 | unsigned int current_value, i; | |
6023 | ||
6024 | current_value = tpacpi_brightness_nvram_get(); | |
6025 | ||
6026 | if (value == current_value) | |
6027 | return 0; | |
6028 | ||
6029 | cmos_cmd = (value > current_value) ? | |
6030 | TP_CMOS_BRIGHTNESS_UP : | |
6031 | TP_CMOS_BRIGHTNESS_DOWN; | |
6032 | inc = (value > current_value) ? 1 : -1; | |
6033 | ||
6034 | for (i = current_value; i != value; i += inc) | |
6035 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6036 | return -EIO; | |
b21a15f6 | 6037 | |
e11aecf1 | 6038 | return 0; |
b21a15f6 HMH |
6039 | } |
6040 | ||
6041 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6042 | static int brightness_set(unsigned int value) |
b21a15f6 | 6043 | { |
0e501834 | 6044 | int res; |
b21a15f6 | 6045 | |
e11aecf1 HMH |
6046 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
6047 | value < 0) | |
b21a15f6 HMH |
6048 | return -EINVAL; |
6049 | ||
0e501834 HMH |
6050 | vdbg_printk(TPACPI_DBG_BRGHT, |
6051 | "set backlight level to %d\n", value); | |
6052 | ||
7646ea88 | 6053 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6054 | if (res < 0) |
6055 | return res; | |
6056 | ||
0e501834 HMH |
6057 | switch (brightness_mode) { |
6058 | case TPACPI_BRGHT_MODE_EC: | |
6059 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6060 | res = tpacpi_brightness_set_ec(value); | |
6061 | break; | |
6062 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6063 | res = tpacpi_brightness_set_ucmsstep(value); | |
6064 | break; | |
6065 | default: | |
6066 | res = -ENXIO; | |
b21a15f6 HMH |
6067 | } |
6068 | ||
b21a15f6 HMH |
6069 | mutex_unlock(&brightness_mutex); |
6070 | return res; | |
6071 | } | |
6072 | ||
6073 | /* sysfs backlight class ----------------------------------------------- */ | |
6074 | ||
6075 | static int brightness_update_status(struct backlight_device *bd) | |
6076 | { | |
0e501834 | 6077 | unsigned int level = |
b21a15f6 HMH |
6078 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6079 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6080 | bd->props.brightness : 0; |
6081 | ||
6082 | dbg_printk(TPACPI_DBG_BRGHT, | |
6083 | "backlight: attempt to set level to %d\n", | |
6084 | level); | |
6085 | ||
6086 | /* it is the backlight class's job (caller) to handle | |
6087 | * EINTR and other errors properly */ | |
6088 | return brightness_set(level); | |
b21a15f6 HMH |
6089 | } |
6090 | ||
e11aecf1 | 6091 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6092 | { |
e11aecf1 | 6093 | int status, res; |
a3f104c0 | 6094 | |
0e501834 | 6095 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6096 | if (res < 0) |
0e501834 HMH |
6097 | return 0; |
6098 | ||
6099 | res = tpacpi_brightness_get_raw(&status); | |
6100 | ||
6101 | mutex_unlock(&brightness_mutex); | |
6102 | ||
6103 | if (res < 0) | |
6104 | return 0; | |
e11e211a | 6105 | |
e11aecf1 | 6106 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6107 | } |
6108 | ||
347a2686 HMH |
6109 | static void tpacpi_brightness_notify_change(void) |
6110 | { | |
6111 | backlight_force_update(ibm_backlight_device, | |
6112 | BACKLIGHT_UPDATE_HOTKEY); | |
6113 | } | |
6114 | ||
b21a15f6 | 6115 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6116 | .get_brightness = brightness_get, |
6117 | .update_status = brightness_update_status, | |
56b6aeb0 | 6118 | }; |
e11e211a | 6119 | |
b21a15f6 | 6120 | /* --------------------------------------------------------------------- */ |
e11e211a | 6121 | |
59fe4fe3 HMH |
6122 | /* |
6123 | * These are only useful for models that have only one possibility | |
6124 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6125 | * these quirks. | |
6126 | */ | |
6127 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6128 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6129 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6130 | ||
6131 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6132 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6133 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6134 | ||
6da25bf5 HMH |
6135 | /* Models with ATI GPUs that can use ECNVRAM */ |
6136 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6137 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6138 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
6139 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
6140 | ||
6da25bf5 HMH |
6141 | /* Models with Intel Extreme Graphics 2 */ |
6142 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), | |
a9f8eacc HMH |
6143 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6144 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6145 | |
6146 | /* Models with Intel GMA900 */ | |
6147 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6148 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6149 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6150 | }; | |
6151 | ||
a5763f22 | 6152 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
6153 | { |
6154 | int b; | |
59fe4fe3 | 6155 | unsigned long quirks; |
56b6aeb0 | 6156 | |
fe08bc4b HMH |
6157 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6158 | ||
f432255e HMH |
6159 | mutex_init(&brightness_mutex); |
6160 | ||
59fe4fe3 HMH |
6161 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6162 | ARRAY_SIZE(brightness_quirk_table)); | |
6163 | ||
b5972796 HMH |
6164 | /* |
6165 | * We always attempt to detect acpi support, so as to switch | |
6166 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6167 | * going to publish a backlight interface | |
6168 | */ | |
6169 | b = tpacpi_check_std_acpi_brightness_support(); | |
6170 | if (b > 0) { | |
2dba1b5d TR |
6171 | |
6172 | if (acpi_video_backlight_support()) { | |
6173 | if (brightness_enable > 1) { | |
6174 | printk(TPACPI_NOTICE | |
6175 | "Standard ACPI backlight interface " | |
6176 | "available, not loading native one.\n"); | |
6177 | return 1; | |
6178 | } else if (brightness_enable == 1) { | |
6179 | printk(TPACPI_NOTICE | |
6180 | "Backlight control force enabled, even if standard " | |
6181 | "ACPI backlight interface is available\n"); | |
6182 | } | |
6183 | } else { | |
6184 | if (brightness_enable > 1) { | |
6185 | printk(TPACPI_NOTICE | |
6186 | "Standard ACPI backlight interface not " | |
6187 | "available, thinkpad_acpi native " | |
6188 | "brightness control enabled\n"); | |
6189 | } | |
e11e211a | 6190 | } |
87cc537a HMH |
6191 | } |
6192 | ||
b5972796 | 6193 | if (!brightness_enable) { |
0e501834 | 6194 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6195 | "brightness support disabled by " |
6196 | "module parameter\n"); | |
6197 | return 1; | |
6198 | } | |
6199 | ||
6200 | if (b > 16) { | |
6201 | printk(TPACPI_ERR | |
6202 | "Unsupported brightness interface, " | |
6203 | "please contact %s\n", TPACPI_MAIL); | |
6204 | return 1; | |
6205 | } | |
6206 | if (b == 16) | |
6207 | tp_features.bright_16levels = 1; | |
6208 | ||
0e501834 HMH |
6209 | /* |
6210 | * Check for module parameter bogosity, note that we | |
6211 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6212 | * able to detect "unspecified" | |
6213 | */ | |
6214 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6215 | return -EINVAL; | |
24d3b774 | 6216 | |
0e501834 HMH |
6217 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6218 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6219 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6220 | if (quirks & TPACPI_BRGHT_Q_EC) |
6221 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6222 | else | |
0e501834 | 6223 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6224 | |
0e501834 | 6225 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6226 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6227 | brightness_mode); |
6228 | } | |
24d3b774 | 6229 | |
d7880f10 HMH |
6230 | /* Safety */ |
6231 | if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM && | |
6232 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || | |
6233 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6234 | return -EINVAL; | |
6235 | ||
0e501834 | 6236 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6237 | return 1; |
56b6aeb0 | 6238 | |
a3f104c0 | 6239 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
6240 | printk(TPACPI_INFO |
6241 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 6242 | |
7d5a015e HMH |
6243 | ibm_backlight_device = backlight_device_register( |
6244 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
6245 | &ibm_backlight_data); | |
56b6aeb0 | 6246 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6247 | int rc = PTR_ERR(ibm_backlight_device); |
6248 | ibm_backlight_device = NULL; | |
e0c7dfe7 | 6249 | printk(TPACPI_ERR "Could not register backlight device\n"); |
435c47e2 | 6250 | return rc; |
56b6aeb0 | 6251 | } |
0e501834 HMH |
6252 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6253 | "brightness is supported\n"); | |
56b6aeb0 | 6254 | |
59fe4fe3 HMH |
6255 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
6256 | printk(TPACPI_NOTICE | |
6257 | "brightness: will use unverified default: " | |
6258 | "brightness_mode=%d\n", brightness_mode); | |
6259 | printk(TPACPI_NOTICE | |
6260 | "brightness: please report to %s whether it works well " | |
6261 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
6262 | } | |
6263 | ||
a3f104c0 HMH |
6264 | ibm_backlight_device->props.max_brightness = |
6265 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 6266 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
6267 | backlight_update_status(ibm_backlight_device); |
6268 | ||
347a2686 HMH |
6269 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6270 | "brightness: registering brightness hotkeys " | |
6271 | "as change notification\n"); | |
6272 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6273 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
6274 | | TP_ACPI_HKEY_BRGHTDWN_MASK);; | |
56b6aeb0 HMH |
6275 | return 0; |
6276 | } | |
6277 | ||
0e501834 HMH |
6278 | static void brightness_suspend(pm_message_t state) |
6279 | { | |
6280 | tpacpi_brightness_checkpoint_nvram(); | |
6281 | } | |
6282 | ||
6283 | static void brightness_shutdown(void) | |
6284 | { | |
6285 | tpacpi_brightness_checkpoint_nvram(); | |
6286 | } | |
6287 | ||
56b6aeb0 HMH |
6288 | static void brightness_exit(void) |
6289 | { | |
6290 | if (ibm_backlight_device) { | |
0e501834 | 6291 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6292 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6293 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6294 | } |
0e501834 HMH |
6295 | |
6296 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6297 | } |
6298 | ||
887965e6 | 6299 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6300 | { |
56b6aeb0 HMH |
6301 | int level; |
6302 | ||
35ff8b9f HMH |
6303 | level = brightness_get(NULL); |
6304 | if (level < 0) { | |
887965e6 | 6305 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6306 | } else { |
887965e6 AD |
6307 | seq_printf(m, "level:\t\t%d\n", level); |
6308 | seq_printf(m, "commands:\tup, down\n"); | |
6309 | seq_printf(m, "commands:\tlevel <level>" | |
a3f104c0 HMH |
6310 | " (<level> is 0-%d)\n", |
6311 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
6312 | } |
6313 | ||
887965e6 | 6314 | return 0; |
56b6aeb0 HMH |
6315 | } |
6316 | ||
8acb0250 HM |
6317 | static int brightness_write(char *buf) |
6318 | { | |
6319 | int level; | |
4273af8d | 6320 | int rc; |
1da177e4 | 6321 | char *cmd; |
a3f104c0 | 6322 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 6323 | |
4273af8d HMH |
6324 | level = brightness_get(NULL); |
6325 | if (level < 0) | |
6326 | return level; | |
78f81cc4 | 6327 | |
4273af8d | 6328 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6329 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
6330 | if (level < max_level) |
6331 | level++; | |
78f81cc4 | 6332 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6333 | if (level > 0) |
6334 | level--; | |
6335 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
6336 | level >= 0 && level <= max_level) { | |
6337 | /* new level set */ | |
78f81cc4 BD |
6338 | } else |
6339 | return -EINVAL; | |
78f81cc4 BD |
6340 | } |
6341 | ||
0e501834 HMH |
6342 | tpacpi_disclose_usertask("procfs brightness", |
6343 | "set level to %d\n", level); | |
6344 | ||
4273af8d HMH |
6345 | /* |
6346 | * Now we know what the final level should be, so we try to set it. | |
6347 | * Doing it this way makes the syscall restartable in case of EINTR | |
6348 | */ | |
6349 | rc = brightness_set(level); | |
347a2686 HMH |
6350 | if (!rc && ibm_backlight_device) |
6351 | backlight_force_update(ibm_backlight_device, | |
6352 | BACKLIGHT_UPDATE_SYSFS); | |
80a8d122 | 6353 | return (rc == -EINTR)? -ERESTARTSYS : rc; |
78f81cc4 BD |
6354 | } |
6355 | ||
a5763f22 HMH |
6356 | static struct ibm_struct brightness_driver_data = { |
6357 | .name = "brightness", | |
6358 | .read = brightness_read, | |
6359 | .write = brightness_write, | |
6360 | .exit = brightness_exit, | |
0e501834 HMH |
6361 | .suspend = brightness_suspend, |
6362 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6363 | }; |
6364 | ||
56b6aeb0 HMH |
6365 | /************************************************************************* |
6366 | * Volume subdriver | |
6367 | */ | |
fb87a811 | 6368 | |
329e4e18 HMH |
6369 | /* |
6370 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6371 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6372 | * | |
6373 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6374 | * ThinkPads only implement the MUTE gate. | |
6375 | * | |
6376 | * EC register 0x30 | |
6377 | * Bit 6: MUTE (1 mutes sound) | |
6378 | * Bit 3-0: Volume | |
6379 | * Other bits should be zero as far as we know. | |
6380 | * | |
6381 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6382 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6383 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6384 | * and we leave them unchanged. | |
6385 | */ | |
6386 | ||
0d204c34 HMH |
6387 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
6388 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
6389 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
6390 | ||
ead510ce | 6391 | static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */ |
0d204c34 HMH |
6392 | static char *alsa_id = "ThinkPadEC"; |
6393 | static int alsa_enable = SNDRV_DEFAULT_ENABLE1; | |
6394 | ||
6395 | struct tpacpi_alsa_data { | |
6396 | struct snd_card *card; | |
6397 | struct snd_ctl_elem_id *ctl_mute_id; | |
6398 | struct snd_ctl_elem_id *ctl_vol_id; | |
6399 | }; | |
6400 | ||
6401 | static struct snd_card *alsa_card; | |
6402 | ||
329e4e18 HMH |
6403 | enum { |
6404 | TP_EC_AUDIO = 0x30, | |
6405 | ||
6406 | /* TP_EC_AUDIO bits */ | |
6407 | TP_EC_AUDIO_MUTESW = 6, | |
6408 | ||
6409 | /* TP_EC_AUDIO bitmasks */ | |
6410 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6411 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6412 | ||
6413 | /* Maximum volume */ | |
6414 | TP_EC_VOLUME_MAX = 14, | |
6415 | }; | |
6416 | ||
6417 | enum tpacpi_volume_access_mode { | |
6418 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6419 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6420 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6421 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6422 | TPACPI_VOL_MODE_MAX | |
6423 | }; | |
6424 | ||
a112ceee HMH |
6425 | enum tpacpi_volume_capabilities { |
6426 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6427 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6428 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6429 | TPACPI_VOL_CAP_MAX | |
6430 | }; | |
6431 | ||
329e4e18 HMH |
6432 | static enum tpacpi_volume_access_mode volume_mode = |
6433 | TPACPI_VOL_MODE_MAX; | |
6434 | ||
a112ceee | 6435 | static enum tpacpi_volume_capabilities volume_capabilities; |
c7ac6291 | 6436 | static int volume_control_allowed; |
f74a27d4 | 6437 | |
329e4e18 HMH |
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) | |
78f81cc4 | 6445 | { |
329e4e18 HMH |
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; | |
c7ac6291 HMH |
6452 | if (!volume_control_allowed) |
6453 | return; | |
329e4e18 HMH |
6454 | |
6455 | vdbg_printk(TPACPI_DBG_MIXER, | |
6456 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 6457 | |
a112ceee HMH |
6458 | if (tp_features.mixer_no_level_control) |
6459 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6460 | else | |
6461 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6462 | ||
329e4e18 HMH |
6463 | if (mutex_lock_killable(&volume_mutex) < 0) |
6464 | return; | |
6465 | ||
6466 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6467 | goto unlock; | |
6468 | lec &= ec_mask; | |
6469 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6470 | ||
6471 | if (lec != (b_nvram & ec_mask)) { | |
6472 | /* NVRAM needs update */ | |
6473 | b_nvram &= ~ec_mask; | |
6474 | b_nvram |= lec; | |
6475 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6476 | dbg_printk(TPACPI_DBG_MIXER, | |
6477 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6478 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 6479 | } else { |
329e4e18 HMH |
6480 | vdbg_printk(TPACPI_DBG_MIXER, |
6481 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6482 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
6483 | } |
6484 | ||
329e4e18 HMH |
6485 | unlock: |
6486 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
6487 | } |
6488 | ||
329e4e18 | 6489 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 6490 | { |
329e4e18 | 6491 | u8 s; |
78f81cc4 | 6492 | |
329e4e18 HMH |
6493 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
6494 | return -EIO; | |
78f81cc4 | 6495 | |
329e4e18 | 6496 | *status = s; |
1da177e4 | 6497 | |
329e4e18 | 6498 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 6499 | |
329e4e18 HMH |
6500 | return 0; |
6501 | } | |
78f81cc4 | 6502 | |
329e4e18 HMH |
6503 | static int volume_get_status(u8 *status) |
6504 | { | |
6505 | return volume_get_status_ec(status); | |
6506 | } | |
78f81cc4 | 6507 | |
329e4e18 HMH |
6508 | static int volume_set_status_ec(const u8 status) |
6509 | { | |
6510 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6511 | return -EIO; | |
78f81cc4 | 6512 | |
329e4e18 HMH |
6513 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
6514 | ||
6515 | return 0; | |
6516 | } | |
6517 | ||
6518 | static int volume_set_status(const u8 status) | |
6519 | { | |
6520 | return volume_set_status_ec(status); | |
6521 | } | |
6522 | ||
6523 | static int volume_set_mute_ec(const bool mute) | |
6524 | { | |
6525 | int rc; | |
6526 | u8 s, n; | |
6527 | ||
6528 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6529 | return -EINTR; | |
6530 | ||
6531 | rc = volume_get_status_ec(&s); | |
6532 | if (rc) | |
6533 | goto unlock; | |
6534 | ||
6535 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6536 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6537 | ||
6538 | if (n != s) | |
6539 | rc = volume_set_status_ec(n); | |
6540 | ||
6541 | unlock: | |
6542 | mutex_unlock(&volume_mutex); | |
6543 | return rc; | |
6544 | } | |
6545 | ||
6546 | static int volume_set_mute(const bool mute) | |
6547 | { | |
6548 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", | |
6549 | (mute) ? "" : "un"); | |
6550 | return volume_set_mute_ec(mute); | |
6551 | } | |
6552 | ||
6553 | static int volume_set_volume_ec(const u8 vol) | |
6554 | { | |
6555 | int rc; | |
6556 | u8 s, n; | |
6557 | ||
6558 | if (vol > TP_EC_VOLUME_MAX) | |
6559 | return -EINVAL; | |
6560 | ||
6561 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6562 | return -EINTR; | |
6563 | ||
6564 | rc = volume_get_status_ec(&s); | |
6565 | if (rc) | |
6566 | goto unlock; | |
6567 | ||
6568 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6569 | ||
6570 | if (n != s) | |
6571 | rc = volume_set_status_ec(n); | |
6572 | ||
6573 | unlock: | |
6574 | mutex_unlock(&volume_mutex); | |
6575 | return rc; | |
6576 | } | |
6577 | ||
6578 | static int volume_set_volume(const u8 vol) | |
6579 | { | |
6580 | dbg_printk(TPACPI_DBG_MIXER, | |
6581 | "trying to set volume level to %hu\n", vol); | |
6582 | return volume_set_volume_ec(vol); | |
6583 | } | |
6584 | ||
0d204c34 HMH |
6585 | static void volume_alsa_notify_change(void) |
6586 | { | |
6587 | struct tpacpi_alsa_data *d; | |
6588 | ||
6589 | if (alsa_card && alsa_card->private_data) { | |
6590 | d = alsa_card->private_data; | |
6591 | if (d->ctl_mute_id) | |
6592 | snd_ctl_notify(alsa_card, | |
6593 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6594 | d->ctl_mute_id); | |
6595 | if (d->ctl_vol_id) | |
6596 | snd_ctl_notify(alsa_card, | |
6597 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6598 | d->ctl_vol_id); | |
6599 | } | |
6600 | } | |
6601 | ||
6602 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
6603 | struct snd_ctl_elem_info *uinfo) | |
6604 | { | |
6605 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
6606 | uinfo->count = 1; | |
6607 | uinfo->value.integer.min = 0; | |
6608 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
6609 | return 0; | |
6610 | } | |
6611 | ||
6612 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
6613 | struct snd_ctl_elem_value *ucontrol) | |
6614 | { | |
6615 | u8 s; | |
6616 | int rc; | |
6617 | ||
6618 | rc = volume_get_status(&s); | |
6619 | if (rc < 0) | |
6620 | return rc; | |
6621 | ||
6622 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
6623 | return 0; | |
6624 | } | |
6625 | ||
6626 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
6627 | struct snd_ctl_elem_value *ucontrol) | |
6628 | { | |
6629 | return volume_set_volume(ucontrol->value.integer.value[0]); | |
6630 | } | |
6631 | ||
6632 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
6633 | ||
6634 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
6635 | struct snd_ctl_elem_value *ucontrol) | |
6636 | { | |
6637 | u8 s; | |
6638 | int rc; | |
6639 | ||
6640 | rc = volume_get_status(&s); | |
6641 | if (rc < 0) | |
6642 | return rc; | |
6643 | ||
6644 | ucontrol->value.integer.value[0] = | |
6645 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
6646 | return 0; | |
6647 | } | |
6648 | ||
6649 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
6650 | struct snd_ctl_elem_value *ucontrol) | |
6651 | { | |
6652 | return volume_set_mute(!ucontrol->value.integer.value[0]); | |
6653 | } | |
6654 | ||
6655 | static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = { | |
6656 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6657 | .name = "Console Playback Volume", | |
6658 | .index = 0, | |
6659 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6660 | .info = volume_alsa_vol_info, | |
6661 | .get = volume_alsa_vol_get, | |
6662 | }; | |
6663 | ||
6664 | static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = { | |
6665 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6666 | .name = "Console Playback Switch", | |
6667 | .index = 0, | |
6668 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6669 | .info = volume_alsa_mute_info, | |
6670 | .get = volume_alsa_mute_get, | |
6671 | }; | |
6672 | ||
329e4e18 HMH |
6673 | static void volume_suspend(pm_message_t state) |
6674 | { | |
6675 | tpacpi_volume_checkpoint_nvram(); | |
6676 | } | |
6677 | ||
0d204c34 HMH |
6678 | static void volume_resume(void) |
6679 | { | |
6680 | volume_alsa_notify_change(); | |
6681 | } | |
6682 | ||
329e4e18 HMH |
6683 | static void volume_shutdown(void) |
6684 | { | |
6685 | tpacpi_volume_checkpoint_nvram(); | |
6686 | } | |
6687 | ||
6688 | static void volume_exit(void) | |
6689 | { | |
0d204c34 HMH |
6690 | if (alsa_card) { |
6691 | snd_card_free(alsa_card); | |
6692 | alsa_card = NULL; | |
6693 | } | |
6694 | ||
329e4e18 HMH |
6695 | tpacpi_volume_checkpoint_nvram(); |
6696 | } | |
6697 | ||
0d204c34 HMH |
6698 | static int __init volume_create_alsa_mixer(void) |
6699 | { | |
6700 | struct snd_card *card; | |
6701 | struct tpacpi_alsa_data *data; | |
6702 | struct snd_kcontrol *ctl_vol; | |
6703 | struct snd_kcontrol *ctl_mute; | |
6704 | int rc; | |
6705 | ||
6706 | rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, | |
6707 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 HMH |
6708 | if (rc < 0 || !card) { |
6709 | printk(TPACPI_ERR | |
6710 | "Failed to create ALSA card structures: %d\n", rc); | |
6711 | return 1; | |
6712 | } | |
0d204c34 HMH |
6713 | |
6714 | BUG_ON(!card->private_data); | |
6715 | data = card->private_data; | |
6716 | data->card = card; | |
6717 | ||
6718 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
6719 | sizeof(card->driver)); | |
6720 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
6721 | sizeof(card->shortname)); | |
6722 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
6723 | (thinkpad_id.ec_version_str) ? | |
6724 | thinkpad_id.ec_version_str : "(unknown)"); | |
6725 | snprintf(card->longname, sizeof(card->longname), | |
6726 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
6727 | (thinkpad_id.ec_version_str) ? | |
6728 | thinkpad_id.ec_version_str : "unknown"); | |
6729 | ||
6730 | if (volume_control_allowed) { | |
6731 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
6732 | volume_alsa_control_vol.access = | |
6733 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6734 | ||
6735 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
6736 | volume_alsa_control_mute.access = | |
6737 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6738 | } | |
6739 | ||
6740 | if (!tp_features.mixer_no_level_control) { | |
6741 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
6742 | rc = snd_ctl_add(card, ctl_vol); | |
6743 | if (rc < 0) { | |
6744 | printk(TPACPI_ERR | |
74c75c18 HMH |
6745 | "Failed to create ALSA volume control: %d\n", |
6746 | rc); | |
6747 | goto err_exit; | |
78f81cc4 | 6748 | } |
0d204c34 HMH |
6749 | data->ctl_vol_id = &ctl_vol->id; |
6750 | } | |
78f81cc4 | 6751 | |
0d204c34 HMH |
6752 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
6753 | rc = snd_ctl_add(card, ctl_mute); | |
6754 | if (rc < 0) { | |
74c75c18 HMH |
6755 | printk(TPACPI_ERR "Failed to create ALSA mute control: %d\n", |
6756 | rc); | |
6757 | goto err_exit; | |
0d204c34 HMH |
6758 | } |
6759 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 6760 | |
0d204c34 HMH |
6761 | snd_card_set_dev(card, &tpacpi_pdev->dev); |
6762 | rc = snd_card_register(card); | |
0d204c34 | 6763 | if (rc < 0) { |
74c75c18 HMH |
6764 | printk(TPACPI_ERR "Failed to register ALSA card: %d\n", rc); |
6765 | goto err_exit; | |
0d204c34 HMH |
6766 | } |
6767 | ||
6768 | alsa_card = card; | |
74c75c18 HMH |
6769 | return 0; |
6770 | ||
6771 | err_exit: | |
6772 | snd_card_free(card); | |
6773 | return 1; | |
0d204c34 HMH |
6774 | } |
6775 | ||
a112ceee HMH |
6776 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
6777 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
6778 | ||
6779 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
6780 | /* Whitelist volume level on all IBM by default */ | |
6781 | { .vendor = PCI_VENDOR_ID_IBM, | |
6782 | .bios = TPACPI_MATCH_ANY, | |
6783 | .ec = TPACPI_MATCH_ANY, | |
6784 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
6785 | ||
6786 | /* Lenovo models with volume control (needs confirmation) */ | |
6787 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
6788 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
6789 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
6790 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
6791 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
6792 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
6793 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
6794 | ||
6795 | /* Whitelist mute-only on all Lenovo by default */ | |
6796 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
6797 | .bios = TPACPI_MATCH_ANY, | |
6798 | .ec = TPACPI_MATCH_ANY, | |
6799 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
6800 | }; | |
6801 | ||
329e4e18 HMH |
6802 | static int __init volume_init(struct ibm_init_struct *iibm) |
6803 | { | |
a112ceee | 6804 | unsigned long quirks; |
0d204c34 | 6805 | int rc; |
a112ceee | 6806 | |
329e4e18 HMH |
6807 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
6808 | ||
6809 | mutex_init(&volume_mutex); | |
6810 | ||
6811 | /* | |
6812 | * Check for module parameter bogosity, note that we | |
6813 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
6814 | * able to detect "unspecified" | |
6815 | */ | |
6816 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
6817 | return -EINVAL; | |
6818 | ||
6819 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
6820 | printk(TPACPI_ERR | |
6821 | "UCMS step volume mode not implemented, " | |
6822 | "please contact %s\n", TPACPI_MAIL); | |
6823 | return 1; | |
6824 | } | |
6825 | ||
a112ceee HMH |
6826 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
6827 | return -EINVAL; | |
6828 | ||
0d204c34 HMH |
6829 | /* |
6830 | * The ALSA mixer is our primary interface. | |
6831 | * When disabled, don't install the subdriver at all | |
6832 | */ | |
6833 | if (!alsa_enable) { | |
6834 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6835 | "ALSA mixer disabled by parameter, " | |
6836 | "not loading volume subdriver...\n"); | |
6837 | return 1; | |
6838 | } | |
6839 | ||
a112ceee HMH |
6840 | quirks = tpacpi_check_quirks(volume_quirk_table, |
6841 | ARRAY_SIZE(volume_quirk_table)); | |
6842 | ||
6843 | switch (volume_capabilities) { | |
6844 | case TPACPI_VOL_CAP_AUTO: | |
6845 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
6846 | tp_features.mixer_no_level_control = 1; | |
6847 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
6848 | tp_features.mixer_no_level_control = 0; | |
6849 | else | |
6850 | return 1; /* no mixer */ | |
6851 | break; | |
6852 | case TPACPI_VOL_CAP_VOLMUTE: | |
6853 | tp_features.mixer_no_level_control = 0; | |
6854 | break; | |
6855 | case TPACPI_VOL_CAP_MUTEONLY: | |
6856 | tp_features.mixer_no_level_control = 1; | |
6857 | break; | |
6858 | default: | |
6859 | return 1; | |
6860 | } | |
6861 | ||
6862 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
6863 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6864 | "using user-supplied volume_capabilities=%d\n", | |
6865 | volume_capabilities); | |
6866 | ||
329e4e18 HMH |
6867 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
6868 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
6869 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
6870 | ||
6871 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6872 | "driver auto-selected volume_mode=%d\n", | |
6873 | volume_mode); | |
6874 | } else { | |
6875 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6876 | "using user-supplied volume_mode=%d\n", | |
6877 | volume_mode); | |
6878 | } | |
6879 | ||
6880 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
6881 | "mute is supported, volume control is %s\n", |
6882 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 6883 | |
0d204c34 HMH |
6884 | rc = volume_create_alsa_mixer(); |
6885 | if (rc) { | |
6886 | printk(TPACPI_ERR | |
6887 | "Could not create the ALSA mixer interface\n"); | |
6888 | return rc; | |
6889 | } | |
6890 | ||
c7ac6291 HMH |
6891 | printk(TPACPI_INFO |
6892 | "Console audio control enabled, mode: %s\n", | |
6893 | (volume_control_allowed) ? | |
6894 | "override (read/write)" : | |
6895 | "monitor (read only)"); | |
6896 | ||
0d204c34 HMH |
6897 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
6898 | "registering volume hotkeys as change notification\n"); | |
6899 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6900 | | TP_ACPI_HKEY_VOLUP_MASK | |
6901 | | TP_ACPI_HKEY_VOLDWN_MASK | |
6902 | | TP_ACPI_HKEY_MUTE_MASK); | |
6903 | ||
329e4e18 HMH |
6904 | return 0; |
6905 | } | |
f74a27d4 | 6906 | |
887965e6 | 6907 | static int volume_read(struct seq_file *m) |
78f81cc4 | 6908 | { |
329e4e18 | 6909 | u8 status; |
78f81cc4 | 6910 | |
329e4e18 | 6911 | if (volume_get_status(&status) < 0) { |
887965e6 | 6912 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 6913 | } else { |
a112ceee | 6914 | if (tp_features.mixer_no_level_control) |
887965e6 | 6915 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 6916 | else |
887965e6 | 6917 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
6918 | status & TP_EC_AUDIO_LVL_MSK); |
6919 | ||
887965e6 | 6920 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 6921 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 6922 | |
c7ac6291 | 6923 | if (volume_control_allowed) { |
887965e6 | 6924 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 6925 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 6926 | seq_printf(m, |
c7ac6291 | 6927 | "commands:\tup, down\n"); |
887965e6 | 6928 | seq_printf(m, |
c7ac6291 HMH |
6929 | "commands:\tlevel <level>" |
6930 | " (<level> is 0-%d)\n", | |
6931 | TP_EC_VOLUME_MAX); | |
6932 | } | |
78f81cc4 BD |
6933 | } |
6934 | } | |
6935 | ||
6936 | return 0; | |
6937 | } | |
6938 | ||
78f81cc4 BD |
6939 | static int volume_write(char *buf) |
6940 | { | |
329e4e18 HMH |
6941 | u8 s; |
6942 | u8 new_level, new_mute; | |
6943 | int l; | |
78f81cc4 | 6944 | char *cmd; |
329e4e18 | 6945 | int rc; |
78f81cc4 | 6946 | |
c7ac6291 HMH |
6947 | /* |
6948 | * We do allow volume control at driver startup, so that the | |
6949 | * user can set initial state through the volume=... parameter hack. | |
6950 | */ | |
6951 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
6952 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
6953 | tp_warned.volume_ctrl_forbidden = 1; | |
6954 | printk(TPACPI_NOTICE | |
6955 | "Console audio control in monitor mode, " | |
6956 | "changes are not allowed.\n"); | |
6957 | printk(TPACPI_NOTICE | |
6958 | "Use the volume_control=1 module parameter " | |
6959 | "to enable volume control\n"); | |
6960 | } | |
6961 | return -EPERM; | |
6962 | } | |
6963 | ||
329e4e18 HMH |
6964 | rc = volume_get_status(&s); |
6965 | if (rc < 0) | |
6966 | return rc; | |
78f81cc4 | 6967 | |
329e4e18 HMH |
6968 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
6969 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
6970 | ||
6971 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
6972 | if (!tp_features.mixer_no_level_control) { |
6973 | if (strlencmp(cmd, "up") == 0) { | |
6974 | if (new_mute) | |
6975 | new_mute = 0; | |
6976 | else if (new_level < TP_EC_VOLUME_MAX) | |
6977 | new_level++; | |
6978 | continue; | |
6979 | } else if (strlencmp(cmd, "down") == 0) { | |
6980 | if (new_mute) | |
6981 | new_mute = 0; | |
6982 | else if (new_level > 0) | |
6983 | new_level--; | |
6984 | continue; | |
6985 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
6986 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
6987 | new_level = l; | |
6988 | continue; | |
6989 | } | |
6990 | } | |
6991 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 6992 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
6993 | else if (strlencmp(cmd, "unmute") == 0) |
6994 | new_mute = 0; | |
6995 | else | |
1da177e4 | 6996 | return -EINVAL; |
329e4e18 | 6997 | } |
1da177e4 | 6998 | |
a112ceee HMH |
6999 | if (tp_features.mixer_no_level_control) { |
7000 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7001 | new_mute ? "" : "un"); | |
7002 | rc = volume_set_mute(!!new_mute); | |
7003 | } else { | |
7004 | tpacpi_disclose_usertask("procfs volume", | |
7005 | "%smute and set level to %d\n", | |
7006 | new_mute ? "" : "un", new_level); | |
7007 | rc = volume_set_status(new_mute | new_level); | |
7008 | } | |
0d204c34 | 7009 | volume_alsa_notify_change(); |
78f81cc4 | 7010 | |
329e4e18 | 7011 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7012 | } |
7013 | ||
a5763f22 HMH |
7014 | static struct ibm_struct volume_driver_data = { |
7015 | .name = "volume", | |
7016 | .read = volume_read, | |
7017 | .write = volume_write, | |
329e4e18 HMH |
7018 | .exit = volume_exit, |
7019 | .suspend = volume_suspend, | |
0d204c34 | 7020 | .resume = volume_resume, |
329e4e18 | 7021 | .shutdown = volume_shutdown, |
a5763f22 | 7022 | }; |
56b6aeb0 HMH |
7023 | |
7024 | /************************************************************************* | |
7025 | * Fan subdriver | |
7026 | */ | |
7027 | ||
7028 | /* | |
7029 | * FAN ACCESS MODES | |
7030 | * | |
efa27145 | 7031 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7032 | * ACPI GFAN method: returns fan level |
7033 | * | |
efa27145 | 7034 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7035 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7036 | * |
efa27145 | 7037 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7038 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7039 | * | |
f51d1a39 HMH |
7040 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7041 | * it for writing. | |
56b6aeb0 | 7042 | * |
efa27145 | 7043 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7044 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7045 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7046 | * |
7047 | * Fan speed changes of any sort (including those caused by the | |
7048 | * disengaged mode) are usually done slowly by the firmware as the | |
7049 | * maximum ammount of fan duty cycle change per second seems to be | |
7050 | * limited. | |
7051 | * | |
7052 | * Reading is not available if GFAN exists. | |
7053 | * Writing is not available if SFAN exists. | |
7054 | * | |
7055 | * Bits | |
7056 | * 7 automatic mode engaged; | |
7057 | * (default operation mode of the ThinkPad) | |
7058 | * fan level is ignored in this mode. | |
f51d1a39 | 7059 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7060 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7061 | * the tachometer while the fan controller ramps up |
7062 | * the speed (which can take up to a few *minutes*). | |
7063 | * Speeds up fan to 100% duty-cycle, which is far above | |
7064 | * the standard RPM levels. It is not impossible that | |
7065 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7066 | * 5-3 unused in some models. Extra bits for fan level |
7067 | * in others, but still useless as all values above | |
7068 | * 7 map to the same speed as level 7 in these models. | |
7069 | * 2-0 fan level (0..7 usually) | |
7070 | * 0x00 = stop | |
7071 | * 0x07 = max (set when temperatures critical) | |
7072 | * Some ThinkPads may have other levels, see | |
efa27145 | 7073 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7074 | * |
7075 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
7076 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
7077 | * does so, its initial value is meaningless (0x07). | |
7078 | * | |
7079 | * For firmware bugs, refer to: | |
7080 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7081 | * | |
7082 | * ---- | |
7083 | * | |
7084 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7085 | * Main fan tachometer reading (in RPM) | |
7086 | * | |
7087 | * This register is present on all ThinkPads with a new-style EC, and | |
7088 | * it is known not to be present on the A21m/e, and T22, as there is | |
7089 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7090 | * ThinkPads from this same time period (and earlier) probably lack the | |
7091 | * tachometer as well. | |
7092 | * | |
877d0310 | 7093 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7094 | * was never fixed by IBM to report the EC firmware version string |
7095 | * probably support the tachometer (like the early X models), so | |
7096 | * detecting it is quite hard. We need more data to know for sure. | |
7097 | * | |
7098 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7099 | * might result. | |
7100 | * | |
f51d1a39 HMH |
7101 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7102 | * mode. | |
56b6aeb0 HMH |
7103 | * |
7104 | * For firmware bugs, refer to: | |
7105 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7106 | * | |
d7377247 HMH |
7107 | * ---- |
7108 | * | |
7109 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7110 | * | |
7111 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7112 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7113 | * is one, the tachometer registers show the speed of the auxiliary | |
7114 | * fan. | |
7115 | * | |
7116 | * Fan control seems to affect both fans, regardless of the state | |
7117 | * of this bit. | |
7118 | * | |
7119 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7120 | * seem to support this (firmware TP-7M). | |
7121 | * | |
efa27145 | 7122 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7123 | * ThinkPad X31, X40, X41. Not available in the X60. |
7124 | * | |
7125 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7126 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7127 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7128 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7129 | * | |
7130 | * The speeds are stored on handles | |
7131 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7132 | * | |
af901ca1 | 7133 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7134 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7135 | * | |
7136 | * ACPI DSDT switches which set is in use depending on various | |
7137 | * factors. | |
7138 | * | |
efa27145 | 7139 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7140 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7141 | * but the ACPI tables just mention level 7. | |
7142 | */ | |
7143 | ||
f74a27d4 HMH |
7144 | enum { /* Fan control constants */ |
7145 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7146 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7147 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7148 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7149 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7150 | |
7151 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7152 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7153 | ||
7154 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7155 | }; | |
7156 | ||
7157 | enum fan_status_access_mode { | |
7158 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7159 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7160 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7161 | }; | |
7162 | ||
7163 | enum fan_control_access_mode { | |
7164 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7165 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7166 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7167 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7168 | }; | |
7169 | ||
7170 | enum fan_control_commands { | |
7171 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7172 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7173 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7174 | * and also watchdog cmd */ | |
7175 | }; | |
7176 | ||
7177 | static int fan_control_allowed; | |
7178 | ||
69ba91cb HMH |
7179 | static enum fan_status_access_mode fan_status_access_mode; |
7180 | static enum fan_control_access_mode fan_control_access_mode; | |
7181 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7182 | |
778b4d74 | 7183 | static u8 fan_control_initial_status; |
fe98a52c | 7184 | static u8 fan_control_desired_level; |
0081b162 | 7185 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7186 | static int fan_watchdog_maxinterval; |
7187 | ||
7188 | static struct mutex fan_mutex; | |
778b4d74 | 7189 | |
25c68a33 | 7190 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7191 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7192 | |
e0c7dfe7 HMH |
7193 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7194 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7195 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7196 | ); /* all others */ | |
e0c7dfe7 | 7197 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7198 | "JFNS", /* 770x-JL */ |
7199 | ); /* all others */ | |
7200 | ||
1c2ece75 HMH |
7201 | /* |
7202 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7203 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7204 | * be in auto mode (0x80). | |
7205 | * | |
7206 | * This is corrected by any write to HFSP either by the driver, or | |
7207 | * by the firmware. | |
7208 | * | |
7209 | * We assume 0x07 really means auto mode while this quirk is active, | |
7210 | * as this is far more likely than the ThinkPad being in level 7, | |
7211 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7212 | * |
7213 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7214 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7215 | */ |
7216 | ||
7d95a3d5 | 7217 | static void fan_quirk1_setup(void) |
1c2ece75 | 7218 | { |
1c2ece75 | 7219 | if (fan_control_initial_status == 0x07) { |
7d95a3d5 HMH |
7220 | printk(TPACPI_NOTICE |
7221 | "fan_init: initial fan status is unknown, " | |
7222 | "assuming it is in auto mode\n"); | |
7223 | tp_features.fan_ctrl_status_undef = 1; | |
1c2ece75 HMH |
7224 | } |
7225 | } | |
7226 | ||
7227 | static void fan_quirk1_handle(u8 *fan_status) | |
7228 | { | |
7229 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7230 | if (*fan_status != fan_control_initial_status) { | |
7231 | /* something changed the HFSP regisnter since | |
7232 | * driver init time, so it is not undefined | |
7233 | * anymore */ | |
7234 | tp_features.fan_ctrl_status_undef = 0; | |
7235 | } else { | |
7236 | /* Return most likely status. In fact, it | |
7237 | * might be the only possible status */ | |
7238 | *fan_status = TP_EC_FAN_AUTO; | |
7239 | } | |
7240 | } | |
7241 | } | |
7242 | ||
d7377247 HMH |
7243 | /* Select main fan on X60/X61, NOOP on others */ |
7244 | static bool fan_select_fan1(void) | |
7245 | { | |
7246 | if (tp_features.second_fan) { | |
7247 | u8 val; | |
7248 | ||
7249 | if (ec_read(fan_select_offset, &val) < 0) | |
7250 | return false; | |
7251 | val &= 0xFEU; | |
7252 | if (ec_write(fan_select_offset, val) < 0) | |
7253 | return false; | |
7254 | } | |
7255 | return true; | |
7256 | } | |
7257 | ||
7258 | /* Select secondary fan on X60/X61 */ | |
7259 | static bool fan_select_fan2(void) | |
7260 | { | |
7261 | u8 val; | |
7262 | ||
7263 | if (!tp_features.second_fan) | |
7264 | return false; | |
7265 | ||
7266 | if (ec_read(fan_select_offset, &val) < 0) | |
7267 | return false; | |
7268 | val |= 0x01U; | |
7269 | if (ec_write(fan_select_offset, val) < 0) | |
7270 | return false; | |
7271 | ||
7272 | return true; | |
7273 | } | |
7274 | ||
fe98a52c | 7275 | /* |
b21a15f6 | 7276 | * Call with fan_mutex held |
fe98a52c | 7277 | */ |
b21a15f6 | 7278 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7279 | { |
b21a15f6 HMH |
7280 | if ((status & |
7281 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7282 | if (status > 7) | |
7283 | fan_control_desired_level = 7; | |
7284 | else | |
7285 | fan_control_desired_level = status; | |
7286 | } | |
7287 | } | |
fe98a52c | 7288 | |
b21a15f6 HMH |
7289 | static int fan_get_status(u8 *status) |
7290 | { | |
7291 | u8 s; | |
fe98a52c | 7292 | |
b21a15f6 HMH |
7293 | /* TODO: |
7294 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7295 | |
b21a15f6 HMH |
7296 | switch (fan_status_access_mode) { |
7297 | case TPACPI_FAN_RD_ACPI_GFAN: | |
7298 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 7299 | |
b21a15f6 HMH |
7300 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
7301 | return -EIO; | |
fe98a52c | 7302 | |
b21a15f6 HMH |
7303 | if (likely(status)) |
7304 | *status = s & 0x07; | |
fe98a52c | 7305 | |
b21a15f6 HMH |
7306 | break; |
7307 | ||
7308 | case TPACPI_FAN_RD_TPEC: | |
7309 | /* all except 570, 600e/x, 770e, 770x */ | |
7310 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7311 | return -EIO; | |
7312 | ||
1c2ece75 | 7313 | if (likely(status)) { |
b21a15f6 | 7314 | *status = s; |
1c2ece75 HMH |
7315 | fan_quirk1_handle(status); |
7316 | } | |
fe98a52c | 7317 | |
fe98a52c | 7318 | break; |
b21a15f6 | 7319 | |
fe98a52c | 7320 | default: |
b21a15f6 | 7321 | return -ENXIO; |
fe98a52c HMH |
7322 | } |
7323 | ||
b21a15f6 HMH |
7324 | return 0; |
7325 | } | |
fe98a52c | 7326 | |
b21a15f6 HMH |
7327 | static int fan_get_status_safe(u8 *status) |
7328 | { | |
7329 | int rc; | |
7330 | u8 s; | |
fe98a52c | 7331 | |
7646ea88 | 7332 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7333 | return -ERESTARTSYS; |
7334 | rc = fan_get_status(&s); | |
7335 | if (!rc) | |
7336 | fan_update_desired_level(s); | |
7337 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7338 | |
b21a15f6 HMH |
7339 | if (status) |
7340 | *status = s; | |
fe98a52c | 7341 | |
b21a15f6 HMH |
7342 | return rc; |
7343 | } | |
7344 | ||
7345 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7346 | { |
b21a15f6 | 7347 | u8 hi, lo; |
fe98a52c | 7348 | |
b21a15f6 HMH |
7349 | switch (fan_status_access_mode) { |
7350 | case TPACPI_FAN_RD_TPEC: | |
7351 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7352 | if (unlikely(!fan_select_fan1())) |
7353 | return -EIO; | |
b21a15f6 HMH |
7354 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7355 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7356 | return -EIO; | |
fe98a52c | 7357 | |
b21a15f6 HMH |
7358 | if (likely(speed)) |
7359 | *speed = (hi << 8) | lo; | |
fe98a52c | 7360 | |
b21a15f6 | 7361 | break; |
fe98a52c | 7362 | |
b21a15f6 HMH |
7363 | default: |
7364 | return -ENXIO; | |
7365 | } | |
fe98a52c | 7366 | |
b21a15f6 | 7367 | return 0; |
fe98a52c HMH |
7368 | } |
7369 | ||
d7377247 HMH |
7370 | static int fan2_get_speed(unsigned int *speed) |
7371 | { | |
7372 | u8 hi, lo; | |
7373 | bool rc; | |
7374 | ||
7375 | switch (fan_status_access_mode) { | |
7376 | case TPACPI_FAN_RD_TPEC: | |
7377 | /* all except 570, 600e/x, 770e, 770x */ | |
7378 | if (unlikely(!fan_select_fan2())) | |
7379 | return -EIO; | |
7380 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7381 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7382 | fan_select_fan1(); /* play it safe */ | |
7383 | if (rc) | |
7384 | return -EIO; | |
7385 | ||
7386 | if (likely(speed)) | |
7387 | *speed = (hi << 8) | lo; | |
7388 | ||
7389 | break; | |
7390 | ||
7391 | default: | |
7392 | return -ENXIO; | |
7393 | } | |
7394 | ||
7395 | return 0; | |
7396 | } | |
7397 | ||
b21a15f6 | 7398 | static int fan_set_level(int level) |
fe98a52c | 7399 | { |
b21a15f6 HMH |
7400 | if (!fan_control_allowed) |
7401 | return -EPERM; | |
fe98a52c | 7402 | |
b21a15f6 HMH |
7403 | switch (fan_control_access_mode) { |
7404 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7405 | if (level >= 0 && level <= 7) { | |
7406 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7407 | return -EIO; | |
7408 | } else | |
7409 | return -EINVAL; | |
7410 | break; | |
fe98a52c | 7411 | |
b21a15f6 HMH |
7412 | case TPACPI_FAN_WR_ACPI_FANS: |
7413 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7414 | if (!(level & TP_EC_FAN_AUTO) && |
7415 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7416 | ((level < 0) || (level > 7))) |
7417 | return -EINVAL; | |
fe98a52c | 7418 | |
b21a15f6 HMH |
7419 | /* safety net should the EC not support AUTO |
7420 | * or FULLSPEED mode bits and just ignore them */ | |
7421 | if (level & TP_EC_FAN_FULLSPEED) | |
7422 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7423 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7424 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7425 | |
b21a15f6 HMH |
7426 | if (!acpi_ec_write(fan_status_offset, level)) |
7427 | return -EIO; | |
7428 | else | |
7429 | tp_features.fan_ctrl_status_undef = 0; | |
7430 | break; | |
fe98a52c | 7431 | |
b21a15f6 HMH |
7432 | default: |
7433 | return -ENXIO; | |
7434 | } | |
74a60c0f HMH |
7435 | |
7436 | vdbg_printk(TPACPI_DBG_FAN, | |
7437 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7438 | return 0; |
fe98a52c HMH |
7439 | } |
7440 | ||
b21a15f6 | 7441 | static int fan_set_level_safe(int level) |
fe98a52c | 7442 | { |
b21a15f6 | 7443 | int rc; |
fe98a52c | 7444 | |
b21a15f6 HMH |
7445 | if (!fan_control_allowed) |
7446 | return -EPERM; | |
fe98a52c | 7447 | |
7646ea88 | 7448 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7449 | return -ERESTARTSYS; |
fe98a52c | 7450 | |
b21a15f6 HMH |
7451 | if (level == TPACPI_FAN_LAST_LEVEL) |
7452 | level = fan_control_desired_level; | |
fe98a52c | 7453 | |
b21a15f6 HMH |
7454 | rc = fan_set_level(level); |
7455 | if (!rc) | |
7456 | fan_update_desired_level(level); | |
7457 | ||
7458 | mutex_unlock(&fan_mutex); | |
7459 | return rc; | |
fe98a52c HMH |
7460 | } |
7461 | ||
b21a15f6 | 7462 | static int fan_set_enable(void) |
fe98a52c | 7463 | { |
b21a15f6 HMH |
7464 | u8 s; |
7465 | int rc; | |
fe98a52c | 7466 | |
ecf2a80a HMH |
7467 | if (!fan_control_allowed) |
7468 | return -EPERM; | |
7469 | ||
7646ea88 | 7470 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7471 | return -ERESTARTSYS; |
fe98a52c | 7472 | |
b21a15f6 HMH |
7473 | switch (fan_control_access_mode) { |
7474 | case TPACPI_FAN_WR_ACPI_FANS: | |
7475 | case TPACPI_FAN_WR_TPEC: | |
7476 | rc = fan_get_status(&s); | |
7477 | if (rc < 0) | |
7478 | break; | |
fe98a52c | 7479 | |
b21a15f6 HMH |
7480 | /* Don't go out of emergency fan mode */ |
7481 | if (s != 7) { | |
7482 | s &= 0x07; | |
7483 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7484 | } | |
fe98a52c | 7485 | |
b21a15f6 HMH |
7486 | if (!acpi_ec_write(fan_status_offset, s)) |
7487 | rc = -EIO; | |
7488 | else { | |
7489 | tp_features.fan_ctrl_status_undef = 0; | |
7490 | rc = 0; | |
7491 | } | |
7492 | break; | |
fe98a52c | 7493 | |
b21a15f6 HMH |
7494 | case TPACPI_FAN_WR_ACPI_SFAN: |
7495 | rc = fan_get_status(&s); | |
7496 | if (rc < 0) | |
7497 | break; | |
fe98a52c | 7498 | |
b21a15f6 | 7499 | s &= 0x07; |
fe98a52c | 7500 | |
b21a15f6 HMH |
7501 | /* Set fan to at least level 4 */ |
7502 | s |= 4; | |
fe08bc4b | 7503 | |
b21a15f6 | 7504 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7505 | rc = -EIO; |
b21a15f6 HMH |
7506 | else |
7507 | rc = 0; | |
7508 | break; | |
78f81cc4 | 7509 | |
b21a15f6 HMH |
7510 | default: |
7511 | rc = -ENXIO; | |
7512 | } | |
5fba344c | 7513 | |
b21a15f6 | 7514 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7515 | |
7516 | if (!rc) | |
7517 | vdbg_printk(TPACPI_DBG_FAN, | |
7518 | "fan control: set fan control register to 0x%02x\n", | |
7519 | s); | |
b21a15f6 | 7520 | return rc; |
69ba91cb | 7521 | } |
78f81cc4 | 7522 | |
b21a15f6 | 7523 | static int fan_set_disable(void) |
78f81cc4 | 7524 | { |
b21a15f6 | 7525 | int rc; |
c52f0aa5 | 7526 | |
b21a15f6 HMH |
7527 | if (!fan_control_allowed) |
7528 | return -EPERM; | |
78f81cc4 | 7529 | |
7646ea88 | 7530 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7531 | return -ERESTARTSYS; |
3ef8a609 | 7532 | |
b21a15f6 HMH |
7533 | rc = 0; |
7534 | switch (fan_control_access_mode) { | |
7535 | case TPACPI_FAN_WR_ACPI_FANS: | |
7536 | case TPACPI_FAN_WR_TPEC: | |
7537 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7538 | rc = -EIO; | |
7539 | else { | |
7540 | fan_control_desired_level = 0; | |
7541 | tp_features.fan_ctrl_status_undef = 0; | |
7542 | } | |
3ef8a609 HMH |
7543 | break; |
7544 | ||
b21a15f6 HMH |
7545 | case TPACPI_FAN_WR_ACPI_SFAN: |
7546 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7547 | rc = -EIO; | |
7548 | else | |
7549 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7550 | break; |
7551 | ||
7552 | default: | |
b21a15f6 | 7553 | rc = -ENXIO; |
78f81cc4 BD |
7554 | } |
7555 | ||
74a60c0f HMH |
7556 | if (!rc) |
7557 | vdbg_printk(TPACPI_DBG_FAN, | |
7558 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7559 | |
fe98a52c | 7560 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7561 | return rc; |
7562 | } | |
7563 | ||
b21a15f6 | 7564 | static int fan_set_speed(int speed) |
c52f0aa5 | 7565 | { |
b21a15f6 | 7566 | int rc; |
c52f0aa5 | 7567 | |
b21a15f6 HMH |
7568 | if (!fan_control_allowed) |
7569 | return -EPERM; | |
3ef8a609 | 7570 | |
7646ea88 | 7571 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7572 | return -ERESTARTSYS; |
c52f0aa5 | 7573 | |
b21a15f6 HMH |
7574 | rc = 0; |
7575 | switch (fan_control_access_mode) { | |
7576 | case TPACPI_FAN_WR_ACPI_FANS: | |
7577 | if (speed >= 0 && speed <= 65535) { | |
7578 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
7579 | speed, speed, speed)) | |
7580 | rc = -EIO; | |
7581 | } else | |
7582 | rc = -EINVAL; | |
c52f0aa5 HMH |
7583 | break; |
7584 | ||
7585 | default: | |
b21a15f6 | 7586 | rc = -ENXIO; |
c52f0aa5 HMH |
7587 | } |
7588 | ||
b21a15f6 HMH |
7589 | mutex_unlock(&fan_mutex); |
7590 | return rc; | |
16663a87 HMH |
7591 | } |
7592 | ||
7593 | static void fan_watchdog_reset(void) | |
7594 | { | |
94954cc6 | 7595 | static int fan_watchdog_active; |
16663a87 | 7596 | |
4985cd0a HMH |
7597 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
7598 | return; | |
7599 | ||
16663a87 HMH |
7600 | if (fan_watchdog_active) |
7601 | cancel_delayed_work(&fan_watchdog_task); | |
7602 | ||
8fef502e HMH |
7603 | if (fan_watchdog_maxinterval > 0 && |
7604 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 7605 | fan_watchdog_active = 1; |
e0e3c061 | 7606 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
7607 | msecs_to_jiffies(fan_watchdog_maxinterval |
7608 | * 1000))) { | |
35ff8b9f | 7609 | printk(TPACPI_ERR |
e0e3c061 | 7610 | "failed to queue the fan watchdog, " |
16663a87 HMH |
7611 | "watchdog will not trigger\n"); |
7612 | } | |
7613 | } else | |
7614 | fan_watchdog_active = 0; | |
7615 | } | |
7616 | ||
b21a15f6 | 7617 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 7618 | { |
b21a15f6 | 7619 | int rc; |
18ad7996 | 7620 | |
b21a15f6 HMH |
7621 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
7622 | return; | |
a12095c2 | 7623 | |
e0c7dfe7 | 7624 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
7625 | rc = fan_set_enable(); |
7626 | if (rc < 0) { | |
e0c7dfe7 | 7627 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
7628 | "will try again later...\n", -rc); |
7629 | /* reschedule for later */ | |
7630 | fan_watchdog_reset(); | |
7631 | } | |
7632 | } | |
eaa7571b | 7633 | |
b21a15f6 HMH |
7634 | /* |
7635 | * SYSFS fan layout: hwmon compatible (device) | |
7636 | * | |
7637 | * pwm*_enable: | |
7638 | * 0: "disengaged" mode | |
7639 | * 1: manual mode | |
7640 | * 2: native EC "auto" mode (recommended, hardware default) | |
7641 | * | |
7642 | * pwm*: set speed in manual mode, ignored otherwise. | |
7643 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
7644 | * interpolation. | |
7645 | * | |
7646 | * fan*_input: tachometer reading, RPM | |
7647 | * | |
7648 | * | |
7649 | * SYSFS fan layout: extensions | |
7650 | * | |
7651 | * fan_watchdog (driver): | |
7652 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
7653 | */ | |
7654 | ||
7655 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
7656 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
7657 | struct device_attribute *attr, | |
7658 | char *buf) | |
7659 | { | |
7660 | int res, mode; | |
7661 | u8 status; | |
7662 | ||
7663 | res = fan_get_status_safe(&status); | |
7664 | if (res) | |
7665 | return res; | |
7666 | ||
b21a15f6 HMH |
7667 | if (status & TP_EC_FAN_FULLSPEED) { |
7668 | mode = 0; | |
7669 | } else if (status & TP_EC_FAN_AUTO) { | |
7670 | mode = 2; | |
7671 | } else | |
7672 | mode = 1; | |
7673 | ||
7674 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
7675 | } | |
a12095c2 | 7676 | |
b21a15f6 HMH |
7677 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
7678 | struct device_attribute *attr, | |
7679 | const char *buf, size_t count) | |
7680 | { | |
7681 | unsigned long t; | |
7682 | int res, level; | |
7683 | ||
7684 | if (parse_strtoul(buf, 2, &t)) | |
7685 | return -EINVAL; | |
7686 | ||
74a60c0f HMH |
7687 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
7688 | "set fan mode to %lu\n", t); | |
7689 | ||
b21a15f6 HMH |
7690 | switch (t) { |
7691 | case 0: | |
7692 | level = TP_EC_FAN_FULLSPEED; | |
7693 | break; | |
7694 | case 1: | |
7695 | level = TPACPI_FAN_LAST_LEVEL; | |
7696 | break; | |
7697 | case 2: | |
7698 | level = TP_EC_FAN_AUTO; | |
7699 | break; | |
7700 | case 3: | |
7701 | /* reserved for software-controlled auto mode */ | |
7702 | return -ENOSYS; | |
18ad7996 | 7703 | default: |
b21a15f6 | 7704 | return -EINVAL; |
18ad7996 | 7705 | } |
b21a15f6 HMH |
7706 | |
7707 | res = fan_set_level_safe(level); | |
7708 | if (res == -ENXIO) | |
7709 | return -EINVAL; | |
7710 | else if (res < 0) | |
7711 | return res; | |
7712 | ||
7713 | fan_watchdog_reset(); | |
7714 | ||
7715 | return count; | |
18ad7996 HMH |
7716 | } |
7717 | ||
b21a15f6 HMH |
7718 | static struct device_attribute dev_attr_fan_pwm1_enable = |
7719 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
7720 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
7721 | ||
7722 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
7723 | static ssize_t fan_pwm1_show(struct device *dev, | |
7724 | struct device_attribute *attr, | |
7725 | char *buf) | |
fe98a52c | 7726 | { |
b21a15f6 HMH |
7727 | int res; |
7728 | u8 status; | |
fe98a52c | 7729 | |
b21a15f6 HMH |
7730 | res = fan_get_status_safe(&status); |
7731 | if (res) | |
7732 | return res; | |
ecf2a80a | 7733 | |
b21a15f6 HMH |
7734 | if ((status & |
7735 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
7736 | status = fan_control_desired_level; | |
fe98a52c | 7737 | |
b21a15f6 HMH |
7738 | if (status > 7) |
7739 | status = 7; | |
fe98a52c | 7740 | |
b21a15f6 | 7741 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
7742 | } |
7743 | ||
b21a15f6 HMH |
7744 | static ssize_t fan_pwm1_store(struct device *dev, |
7745 | struct device_attribute *attr, | |
7746 | const char *buf, size_t count) | |
18ad7996 | 7747 | { |
b21a15f6 | 7748 | unsigned long s; |
1c6a334e | 7749 | int rc; |
b21a15f6 | 7750 | u8 status, newlevel; |
1c6a334e | 7751 | |
b21a15f6 HMH |
7752 | if (parse_strtoul(buf, 255, &s)) |
7753 | return -EINVAL; | |
7754 | ||
74a60c0f HMH |
7755 | tpacpi_disclose_usertask("hwmon pwm1", |
7756 | "set fan speed to %lu\n", s); | |
7757 | ||
b21a15f6 HMH |
7758 | /* scale down from 0-255 to 0-7 */ |
7759 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 7760 | |
7646ea88 | 7761 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 7762 | return -ERESTARTSYS; |
40ca9fdf | 7763 | |
b21a15f6 HMH |
7764 | rc = fan_get_status(&status); |
7765 | if (!rc && (status & | |
7766 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7767 | rc = fan_set_level(newlevel); | |
7768 | if (rc == -ENXIO) | |
7769 | rc = -EINVAL; | |
7770 | else if (!rc) { | |
7771 | fan_update_desired_level(newlevel); | |
7772 | fan_watchdog_reset(); | |
eaa7571b | 7773 | } |
b21a15f6 | 7774 | } |
1c6a334e | 7775 | |
b21a15f6 HMH |
7776 | mutex_unlock(&fan_mutex); |
7777 | return (rc)? rc : count; | |
7778 | } | |
1c6a334e | 7779 | |
b21a15f6 HMH |
7780 | static struct device_attribute dev_attr_fan_pwm1 = |
7781 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
7782 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 7783 | |
b21a15f6 HMH |
7784 | /* sysfs fan fan1_input ------------------------------------------------ */ |
7785 | static ssize_t fan_fan1_input_show(struct device *dev, | |
7786 | struct device_attribute *attr, | |
7787 | char *buf) | |
7788 | { | |
7789 | int res; | |
7790 | unsigned int speed; | |
1c6a334e | 7791 | |
b21a15f6 HMH |
7792 | res = fan_get_speed(&speed); |
7793 | if (res < 0) | |
7794 | return res; | |
1c6a334e | 7795 | |
b21a15f6 HMH |
7796 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
7797 | } | |
18ad7996 | 7798 | |
b21a15f6 HMH |
7799 | static struct device_attribute dev_attr_fan_fan1_input = |
7800 | __ATTR(fan1_input, S_IRUGO, | |
7801 | fan_fan1_input_show, NULL); | |
40ca9fdf | 7802 | |
d7377247 HMH |
7803 | /* sysfs fan fan2_input ------------------------------------------------ */ |
7804 | static ssize_t fan_fan2_input_show(struct device *dev, | |
7805 | struct device_attribute *attr, | |
7806 | char *buf) | |
7807 | { | |
7808 | int res; | |
7809 | unsigned int speed; | |
7810 | ||
7811 | res = fan2_get_speed(&speed); | |
7812 | if (res < 0) | |
7813 | return res; | |
7814 | ||
7815 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
7816 | } | |
7817 | ||
7818 | static struct device_attribute dev_attr_fan_fan2_input = | |
7819 | __ATTR(fan2_input, S_IRUGO, | |
7820 | fan_fan2_input_show, NULL); | |
7821 | ||
b21a15f6 HMH |
7822 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
7823 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
7824 | char *buf) | |
7825 | { | |
7826 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
7827 | } |
7828 | ||
b21a15f6 HMH |
7829 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
7830 | const char *buf, size_t count) | |
18ad7996 | 7831 | { |
b21a15f6 HMH |
7832 | unsigned long t; |
7833 | ||
7834 | if (parse_strtoul(buf, 120, &t)) | |
7835 | return -EINVAL; | |
40ca9fdf | 7836 | |
ecf2a80a HMH |
7837 | if (!fan_control_allowed) |
7838 | return -EPERM; | |
7839 | ||
b21a15f6 HMH |
7840 | fan_watchdog_maxinterval = t; |
7841 | fan_watchdog_reset(); | |
40ca9fdf | 7842 | |
74a60c0f HMH |
7843 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
7844 | ||
b21a15f6 HMH |
7845 | return count; |
7846 | } | |
7847 | ||
7848 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
7849 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
7850 | ||
7851 | /* --------------------------------------------------------------------- */ | |
7852 | static struct attribute *fan_attributes[] = { | |
7853 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
7854 | &dev_attr_fan_fan1_input.attr, | |
d7377247 | 7855 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
7856 | NULL |
7857 | }; | |
7858 | ||
7859 | static const struct attribute_group fan_attr_group = { | |
7860 | .attrs = fan_attributes, | |
7861 | }; | |
7862 | ||
d7377247 HMH |
7863 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
7864 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
7865 | |
7866 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
7867 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
7868 | .bios = TPACPI_MATCH_ANY, \ | |
7869 | .ec = TPID(__id1, __id2), \ | |
7870 | .quirks = __quirks } | |
7871 | ||
d7377247 HMH |
7872 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
7873 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
7874 | .bios = TPACPI_MATCH_ANY, \ | |
7875 | .ec = TPID(__id1, __id2), \ | |
7876 | .quirks = __quirks } | |
7877 | ||
7d95a3d5 HMH |
7878 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
7879 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
7880 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
7881 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
7882 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 7883 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
7884 | }; |
7885 | ||
d7377247 | 7886 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
7887 | #undef TPACPI_FAN_QI |
7888 | ||
b21a15f6 HMH |
7889 | static int __init fan_init(struct ibm_init_struct *iibm) |
7890 | { | |
7891 | int rc; | |
7d95a3d5 | 7892 | unsigned long quirks; |
b21a15f6 | 7893 | |
74a60c0f HMH |
7894 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
7895 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
7896 | |
7897 | mutex_init(&fan_mutex); | |
7898 | fan_status_access_mode = TPACPI_FAN_NONE; | |
7899 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
7900 | fan_control_commands = 0; | |
7901 | fan_watchdog_maxinterval = 0; | |
7902 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 7903 | tp_features.second_fan = 0; |
b21a15f6 HMH |
7904 | fan_control_desired_level = 7; |
7905 | ||
e0c7dfe7 HMH |
7906 | TPACPI_ACPIHANDLE_INIT(fans); |
7907 | TPACPI_ACPIHANDLE_INIT(gfan); | |
7908 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 | 7909 | |
7d95a3d5 HMH |
7910 | quirks = tpacpi_check_quirks(fan_quirk_table, |
7911 | ARRAY_SIZE(fan_quirk_table)); | |
7912 | ||
b21a15f6 HMH |
7913 | if (gfan_handle) { |
7914 | /* 570, 600e/x, 770e, 770x */ | |
7915 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
7916 | } else { | |
7917 | /* all other ThinkPads: note that even old-style | |
7918 | * ThinkPad ECs supports the fan control register */ | |
7919 | if (likely(acpi_ec_read(fan_status_offset, | |
7920 | &fan_control_initial_status))) { | |
7921 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
7922 | if (quirks & TPACPI_FAN_Q1) |
7923 | fan_quirk1_setup(); | |
d7377247 HMH |
7924 | if (quirks & TPACPI_FAN_2FAN) { |
7925 | tp_features.second_fan = 1; | |
7926 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
7927 | "secondary fan support enabled\n"); | |
7928 | } | |
b21a15f6 | 7929 | } else { |
e0c7dfe7 | 7930 | printk(TPACPI_ERR |
b21a15f6 HMH |
7931 | "ThinkPad ACPI EC access misbehaving, " |
7932 | "fan status and control unavailable\n"); | |
7933 | return 1; | |
7934 | } | |
7935 | } | |
7936 | ||
7937 | if (sfan_handle) { | |
7938 | /* 570, 770x-JL */ | |
7939 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
7940 | fan_control_commands |= | |
7941 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
7942 | } else { | |
7943 | if (!gfan_handle) { | |
7944 | /* gfan without sfan means no fan control */ | |
7945 | /* all other models implement TP EC 0x2f control */ | |
7946 | ||
7947 | if (fans_handle) { | |
7948 | /* X31, X40, X41 */ | |
7949 | fan_control_access_mode = | |
7950 | TPACPI_FAN_WR_ACPI_FANS; | |
7951 | fan_control_commands |= | |
7952 | TPACPI_FAN_CMD_SPEED | | |
7953 | TPACPI_FAN_CMD_LEVEL | | |
7954 | TPACPI_FAN_CMD_ENABLE; | |
7955 | } else { | |
7956 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
7957 | fan_control_commands |= | |
7958 | TPACPI_FAN_CMD_LEVEL | | |
7959 | TPACPI_FAN_CMD_ENABLE; | |
7960 | } | |
fe98a52c | 7961 | } |
b21a15f6 | 7962 | } |
18ad7996 | 7963 | |
74a60c0f HMH |
7964 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
7965 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
7966 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
7967 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
7968 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 7969 | |
b21a15f6 HMH |
7970 | /* fan control master switch */ |
7971 | if (!fan_control_allowed) { | |
7972 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
7973 | fan_control_commands = 0; | |
74a60c0f | 7974 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 7975 | "fan control features disabled by parameter\n"); |
18ad7996 | 7976 | } |
40ca9fdf | 7977 | |
b21a15f6 HMH |
7978 | /* update fan_control_desired_level */ |
7979 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
7980 | fan_get_status_safe(NULL); | |
fe98a52c | 7981 | |
b21a15f6 HMH |
7982 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
7983 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
7984 | if (tp_features.second_fan) { |
7985 | /* attach second fan tachometer */ | |
7986 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
7987 | &dev_attr_fan_fan2_input.attr; | |
7988 | } | |
b21a15f6 HMH |
7989 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
7990 | &fan_attr_group); | |
b21a15f6 HMH |
7991 | if (rc < 0) |
7992 | return rc; | |
9c0a76e1 HMH |
7993 | |
7994 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
7995 | &driver_attr_fan_watchdog); | |
7996 | if (rc < 0) { | |
7997 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
7998 | &fan_attr_group); | |
7999 | return rc; | |
8000 | } | |
b21a15f6 HMH |
8001 | return 0; |
8002 | } else | |
8003 | return 1; | |
56b6aeb0 HMH |
8004 | } |
8005 | ||
b21a15f6 | 8006 | static void fan_exit(void) |
56b6aeb0 | 8007 | { |
74a60c0f | 8008 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8009 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8010 | |
b21a15f6 HMH |
8011 | /* FIXME: can we really do this unconditionally? */ |
8012 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8013 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8014 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8015 | |
b21a15f6 | 8016 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8017 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8018 | } |
8019 | ||
75700e53 HMH |
8020 | static void fan_suspend(pm_message_t state) |
8021 | { | |
0081b162 HMH |
8022 | int rc; |
8023 | ||
75700e53 HMH |
8024 | if (!fan_control_allowed) |
8025 | return; | |
8026 | ||
8027 | /* Store fan status in cache */ | |
0081b162 HMH |
8028 | fan_control_resume_level = 0; |
8029 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8030 | if (rc < 0) | |
8031 | printk(TPACPI_NOTICE | |
8032 | "failed to read fan level for later " | |
8033 | "restore during resume: %d\n", rc); | |
8034 | ||
8035 | /* if it is undefined, don't attempt to restore it. | |
8036 | * KEEP THIS LAST */ | |
75700e53 | 8037 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8038 | fan_control_resume_level = 0; |
75700e53 HMH |
8039 | } |
8040 | ||
8041 | static void fan_resume(void) | |
8042 | { | |
75700e53 HMH |
8043 | u8 current_level = 7; |
8044 | bool do_set = false; | |
0081b162 | 8045 | int rc; |
75700e53 HMH |
8046 | |
8047 | /* DSDT *always* updates status on resume */ | |
8048 | tp_features.fan_ctrl_status_undef = 0; | |
8049 | ||
75700e53 | 8050 | if (!fan_control_allowed || |
0081b162 | 8051 | !fan_control_resume_level || |
75700e53 HMH |
8052 | (fan_get_status_safe(¤t_level) < 0)) |
8053 | return; | |
8054 | ||
8055 | switch (fan_control_access_mode) { | |
8056 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8057 | /* never decrease fan level */ |
8058 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8059 | break; |
8060 | case TPACPI_FAN_WR_ACPI_FANS: | |
8061 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8062 | /* never decrease fan level, scale is: |
8063 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8064 | * | |
8065 | * We expect the firmware to set either 7 or AUTO, but we | |
8066 | * handle FULLSPEED out of paranoia. | |
8067 | * | |
8068 | * So, we can safely only restore FULLSPEED or 7, anything | |
8069 | * else could slow the fan. Restoring AUTO is useless, at | |
8070 | * best that's exactly what the DSDT already set (it is the | |
8071 | * slower it uses). | |
8072 | * | |
8073 | * Always keep in mind that the DSDT *will* have set the | |
8074 | * fans to what the vendor supposes is the best level. We | |
8075 | * muck with it only to speed the fan up. | |
8076 | */ | |
8077 | if (fan_control_resume_level != 7 && | |
8078 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8079 | return; | |
8080 | else | |
8081 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8082 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8083 | break; |
8084 | default: | |
8085 | return; | |
8086 | } | |
8087 | if (do_set) { | |
8088 | printk(TPACPI_NOTICE | |
8089 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
8090 | fan_control_resume_level); |
8091 | rc = fan_set_level_safe(fan_control_resume_level); | |
8092 | if (rc < 0) | |
8093 | printk(TPACPI_NOTICE | |
8094 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
8095 | } |
8096 | } | |
8097 | ||
887965e6 | 8098 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8099 | { |
56b6aeb0 HMH |
8100 | int rc; |
8101 | u8 status; | |
8102 | unsigned int speed = 0; | |
8103 | ||
8104 | switch (fan_status_access_mode) { | |
efa27145 | 8105 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8106 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8107 | rc = fan_get_status_safe(&status); |
8108 | if (rc < 0) | |
56b6aeb0 HMH |
8109 | return rc; |
8110 | ||
887965e6 | 8111 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8112 | "level:\t\t%d\n", |
8113 | (status != 0) ? "enabled" : "disabled", status); | |
8114 | break; | |
8115 | ||
efa27145 | 8116 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8117 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8118 | rc = fan_get_status_safe(&status); |
8119 | if (rc < 0) | |
56b6aeb0 HMH |
8120 | return rc; |
8121 | ||
887965e6 | 8122 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8123 | (status != 0) ? "enabled" : "disabled"); |
8124 | ||
35ff8b9f HMH |
8125 | rc = fan_get_speed(&speed); |
8126 | if (rc < 0) | |
56b6aeb0 HMH |
8127 | return rc; |
8128 | ||
887965e6 | 8129 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8130 | |
efa27145 | 8131 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8132 | /* Disengaged mode takes precedence */ |
887965e6 | 8133 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8134 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8135 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8136 | else |
887965e6 | 8137 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8138 | break; |
8139 | ||
efa27145 | 8140 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8141 | default: |
887965e6 | 8142 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8143 | } |
8144 | ||
efa27145 | 8145 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8146 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8147 | |
8148 | switch (fan_control_access_mode) { | |
efa27145 | 8149 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8150 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8151 | break; |
8152 | ||
8153 | default: | |
887965e6 | 8154 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8155 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8156 | break; |
8157 | } | |
8158 | } | |
18ad7996 | 8159 | |
efa27145 | 8160 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8161 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8162 | "commands:\twatchdog <timeout> (<timeout> " |
8163 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8164 | |
efa27145 | 8165 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8166 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8167 | " (<speed> is 0-65535)\n"); |
8168 | ||
887965e6 | 8169 | return 0; |
78f81cc4 BD |
8170 | } |
8171 | ||
18ad7996 HMH |
8172 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8173 | { | |
8174 | int level; | |
8175 | ||
a12095c2 | 8176 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8177 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8178 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8179 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8180 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8181 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8182 | return 0; |
8183 | ||
35ff8b9f HMH |
8184 | *rc = fan_set_level_safe(level); |
8185 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8186 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 | 8187 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8188 | else if (!*rc) |
8189 | tpacpi_disclose_usertask("procfs fan", | |
8190 | "set level to %d\n", level); | |
18ad7996 HMH |
8191 | |
8192 | return 1; | |
8193 | } | |
8194 | ||
8195 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8196 | { | |
8197 | if (strlencmp(cmd, "enable") != 0) | |
8198 | return 0; | |
8199 | ||
35ff8b9f HMH |
8200 | *rc = fan_set_enable(); |
8201 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8202 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 | 8203 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8204 | else if (!*rc) |
8205 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8206 | |
8207 | return 1; | |
8208 | } | |
8209 | ||
8210 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8211 | { | |
8212 | if (strlencmp(cmd, "disable") != 0) | |
8213 | return 0; | |
8214 | ||
35ff8b9f HMH |
8215 | *rc = fan_set_disable(); |
8216 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8217 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 | 8218 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8219 | else if (!*rc) |
8220 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8221 | |
8222 | return 1; | |
8223 | } | |
8224 | ||
8225 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8226 | { | |
8227 | int speed; | |
8228 | ||
a8b7a662 HMH |
8229 | /* TODO: |
8230 | * Support speed <low> <medium> <high> ? */ | |
8231 | ||
18ad7996 HMH |
8232 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8233 | return 0; | |
8234 | ||
35ff8b9f HMH |
8235 | *rc = fan_set_speed(speed); |
8236 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8237 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 | 8238 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8239 | else if (!*rc) |
8240 | tpacpi_disclose_usertask("procfs fan", | |
8241 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8242 | |
8243 | return 1; | |
8244 | } | |
8245 | ||
16663a87 HMH |
8246 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8247 | { | |
8248 | int interval; | |
8249 | ||
8250 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8251 | return 0; | |
8252 | ||
8253 | if (interval < 0 || interval > 120) | |
8254 | *rc = -EINVAL; | |
74a60c0f | 8255 | else { |
16663a87 | 8256 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8257 | tpacpi_disclose_usertask("procfs fan", |
8258 | "set watchdog timer to %d\n", | |
8259 | interval); | |
8260 | } | |
16663a87 HMH |
8261 | |
8262 | return 1; | |
8263 | } | |
8264 | ||
18ad7996 HMH |
8265 | static int fan_write(char *buf) |
8266 | { | |
8267 | char *cmd; | |
8268 | int rc = 0; | |
8269 | ||
8270 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8271 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8272 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8273 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8274 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8275 | fan_write_cmd_disable(cmd, &rc) || |
8276 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8277 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8278 | fan_write_cmd_speed(cmd, &rc)) |
8279 | ) | |
8280 | rc = -EINVAL; | |
16663a87 HMH |
8281 | else if (!rc) |
8282 | fan_watchdog_reset(); | |
18ad7996 HMH |
8283 | } |
8284 | ||
8285 | return rc; | |
8286 | } | |
8287 | ||
a5763f22 HMH |
8288 | static struct ibm_struct fan_driver_data = { |
8289 | .name = "fan", | |
8290 | .read = fan_read, | |
8291 | .write = fan_write, | |
8292 | .exit = fan_exit, | |
75700e53 HMH |
8293 | .suspend = fan_suspend, |
8294 | .resume = fan_resume, | |
a5763f22 HMH |
8295 | }; |
8296 | ||
56b6aeb0 HMH |
8297 | /**************************************************************************** |
8298 | **************************************************************************** | |
8299 | * | |
8300 | * Infrastructure | |
8301 | * | |
8302 | **************************************************************************** | |
8303 | ****************************************************************************/ | |
8304 | ||
8b468c0c HMH |
8305 | /* |
8306 | * HKEY event callout for other subdrivers go here | |
8307 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8308 | */ | |
8309 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8310 | { | |
347a2686 HMH |
8311 | if (ibm_backlight_device) { |
8312 | switch (hkey_event) { | |
8313 | case TP_HKEY_EV_BRGHT_UP: | |
8314 | case TP_HKEY_EV_BRGHT_DOWN: | |
8315 | tpacpi_brightness_notify_change(); | |
8316 | } | |
8317 | } | |
0d204c34 HMH |
8318 | if (alsa_card) { |
8319 | switch (hkey_event) { | |
8320 | case TP_HKEY_EV_VOL_UP: | |
8321 | case TP_HKEY_EV_VOL_DOWN: | |
8322 | case TP_HKEY_EV_VOL_MUTE: | |
8323 | volume_alsa_notify_change(); | |
8324 | } | |
8325 | } | |
8b468c0c HMH |
8326 | } |
8327 | ||
8b468c0c HMH |
8328 | static void hotkey_driver_event(const unsigned int scancode) |
8329 | { | |
67bcae6e | 8330 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8331 | } |
8332 | ||
7fd40029 HMH |
8333 | /* sysfs name ---------------------------------------------------------- */ |
8334 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8335 | struct device_attribute *attr, | |
8336 | char *buf) | |
8337 | { | |
e0c7dfe7 | 8338 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8339 | } |
8340 | ||
8341 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
8342 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
8343 | ||
8344 | /* --------------------------------------------------------------------- */ | |
8345 | ||
56b6aeb0 | 8346 | /* /proc support */ |
94954cc6 | 8347 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8348 | |
56b6aeb0 HMH |
8349 | /* |
8350 | * Module and infrastructure proble, init and exit handling | |
8351 | */ | |
1da177e4 | 8352 | |
b21a15f6 HMH |
8353 | static int force_load; |
8354 | ||
fe08bc4b | 8355 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8356 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8357 | { |
a5763f22 | 8358 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8359 | |
a5763f22 | 8360 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8361 | } |
8362 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8363 | ||
b21a15f6 HMH |
8364 | static void ibm_exit(struct ibm_struct *ibm) |
8365 | { | |
8366 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8367 | ||
8368 | list_del_init(&ibm->all_drivers); | |
8369 | ||
8370 | if (ibm->flags.acpi_notify_installed) { | |
8371 | dbg_printk(TPACPI_DBG_EXIT, | |
8372 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8373 | BUG_ON(!ibm->acpi); | |
8374 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8375 | ibm->acpi->type, | |
8376 | dispatch_acpi_notify); | |
8377 | ibm->flags.acpi_notify_installed = 0; | |
8378 | ibm->flags.acpi_notify_installed = 0; | |
8379 | } | |
8380 | ||
8381 | if (ibm->flags.proc_created) { | |
8382 | dbg_printk(TPACPI_DBG_EXIT, | |
8383 | "%s: remove_proc_entry\n", ibm->name); | |
8384 | remove_proc_entry(ibm->name, proc_dir); | |
8385 | ibm->flags.proc_created = 0; | |
8386 | } | |
8387 | ||
8388 | if (ibm->flags.acpi_driver_registered) { | |
8389 | dbg_printk(TPACPI_DBG_EXIT, | |
8390 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8391 | BUG_ON(!ibm->acpi); | |
8392 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8393 | kfree(ibm->acpi->driver); | |
8394 | ibm->acpi->driver = NULL; | |
8395 | ibm->flags.acpi_driver_registered = 0; | |
8396 | } | |
8397 | ||
8398 | if (ibm->flags.init_called && ibm->exit) { | |
8399 | ibm->exit(); | |
8400 | ibm->flags.init_called = 0; | |
8401 | } | |
8402 | ||
8403 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8404 | } | |
f74a27d4 | 8405 | |
a5763f22 | 8406 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8407 | { |
8408 | int ret; | |
a5763f22 | 8409 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8410 | struct proc_dir_entry *entry; |
8411 | ||
a5763f22 HMH |
8412 | BUG_ON(ibm == NULL); |
8413 | ||
8414 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8415 | ||
92641177 | 8416 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8417 | return 0; |
8418 | ||
fe08bc4b HMH |
8419 | dbg_printk(TPACPI_DBG_INIT, |
8420 | "probing for %s\n", ibm->name); | |
8421 | ||
a5763f22 HMH |
8422 | if (iibm->init) { |
8423 | ret = iibm->init(iibm); | |
5fba344c HMH |
8424 | if (ret > 0) |
8425 | return 0; /* probe failed */ | |
8426 | if (ret) | |
1da177e4 | 8427 | return ret; |
a5763f22 | 8428 | |
92641177 | 8429 | ibm->flags.init_called = 1; |
1da177e4 LT |
8430 | } |
8431 | ||
8d376cd6 HMH |
8432 | if (ibm->acpi) { |
8433 | if (ibm->acpi->hid) { | |
8434 | ret = register_tpacpi_subdriver(ibm); | |
8435 | if (ret) | |
8436 | goto err_out; | |
8437 | } | |
5fba344c | 8438 | |
8d376cd6 HMH |
8439 | if (ibm->acpi->notify) { |
8440 | ret = setup_acpi_notify(ibm); | |
8441 | if (ret == -ENODEV) { | |
e0c7dfe7 | 8442 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
8443 | ibm->name); |
8444 | ret = 0; | |
8445 | goto err_out; | |
8446 | } | |
8447 | if (ret < 0) | |
8448 | goto err_out; | |
5fba344c | 8449 | } |
5fba344c HMH |
8450 | } |
8451 | ||
fe08bc4b HMH |
8452 | dbg_printk(TPACPI_DBG_INIT, |
8453 | "%s installed\n", ibm->name); | |
8454 | ||
78f81cc4 | 8455 | if (ibm->read) { |
887965e6 AD |
8456 | mode_t mode; |
8457 | ||
8458 | mode = S_IRUGO; | |
8459 | if (ibm->write) | |
8460 | mode |= S_IWUSR; | |
8461 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
8462 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 8463 | if (!entry) { |
e0c7dfe7 | 8464 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 8465 | ibm->name); |
5fba344c HMH |
8466 | ret = -ENODEV; |
8467 | goto err_out; | |
78f81cc4 | 8468 | } |
92641177 | 8469 | ibm->flags.proc_created = 1; |
78f81cc4 | 8470 | } |
1da177e4 | 8471 | |
a5763f22 HMH |
8472 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8473 | ||
1da177e4 | 8474 | return 0; |
5fba344c HMH |
8475 | |
8476 | err_out: | |
fe08bc4b HMH |
8477 | dbg_printk(TPACPI_DBG_INIT, |
8478 | "%s: at error exit path with result %d\n", | |
8479 | ibm->name, ret); | |
8480 | ||
5fba344c HMH |
8481 | ibm_exit(ibm); |
8482 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
8483 | } |
8484 | ||
56b6aeb0 HMH |
8485 | /* Probing */ |
8486 | ||
050df107 HMH |
8487 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8488 | { | |
8489 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
8490 | } | |
8491 | ||
8492 | /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ | |
8493 | static bool __pure __init tpacpi_is_valid_fw_id(const char* const s, | |
8494 | const char t) | |
8495 | { | |
8496 | return s && strlen(s) >= 8 && | |
8497 | tpacpi_is_fw_digit(s[0]) && | |
8498 | tpacpi_is_fw_digit(s[1]) && | |
8499 | s[2] == t && s[3] == 'T' && | |
8500 | tpacpi_is_fw_digit(s[4]) && | |
8501 | tpacpi_is_fw_digit(s[5]) && | |
8502 | s[6] == 'W' && s[7] == 'W'; | |
8503 | } | |
8504 | ||
bf20e740 HMH |
8505 | /* returns 0 - probe ok, or < 0 - probe error. |
8506 | * Probe ok doesn't mean thinkpad found. | |
8507 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
8508 | static int __must_check __init get_thinkpad_model_data( | |
8509 | struct thinkpad_id_data *tp) | |
1da177e4 | 8510 | { |
1855256c | 8511 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 8512 | char ec_fw_string[18]; |
bf20e740 | 8513 | char const *s; |
1da177e4 | 8514 | |
d5a2f2f1 | 8515 | if (!tp) |
bf20e740 | 8516 | return -EINVAL; |
d5a2f2f1 HMH |
8517 | |
8518 | memset(tp, 0, sizeof(*tp)); | |
8519 | ||
8520 | if (dmi_name_in_vendors("IBM")) | |
8521 | tp->vendor = PCI_VENDOR_ID_IBM; | |
8522 | else if (dmi_name_in_vendors("LENOVO")) | |
8523 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
8524 | else | |
bf20e740 | 8525 | return 0; |
d5a2f2f1 | 8526 | |
bf20e740 HMH |
8527 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
8528 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
8529 | if (s && !tp->bios_version_str) | |
8530 | return -ENOMEM; | |
050df107 HMH |
8531 | |
8532 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
8533 | if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E')) | |
bf20e740 | 8534 | return 0; |
050df107 | 8535 | |
d5a2f2f1 HMH |
8536 | tp->bios_model = tp->bios_version_str[0] |
8537 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
8538 | tp->bios_release = (tp->bios_version_str[4] << 8) |
8539 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 8540 | |
56b6aeb0 HMH |
8541 | /* |
8542 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
8543 | * X32 or newer, all Z series; Some models must have an | |
8544 | * up-to-date BIOS or they will not be detected. | |
8545 | * | |
8546 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8547 | */ | |
8548 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
8549 | if (sscanf(dev->name, | |
8550 | "IBM ThinkPad Embedded Controller -[%17c", | |
8551 | ec_fw_string) == 1) { | |
8552 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
8553 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
8554 | |
8555 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
8556 | if (!tp->ec_version_str) |
8557 | return -ENOMEM; | |
050df107 HMH |
8558 | |
8559 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
8560 | tp->ec_model = ec_fw_string[0] | |
8561 | | (ec_fw_string[1] << 8); | |
8562 | tp->ec_release = (ec_fw_string[4] << 8) | |
8563 | | ec_fw_string[5]; | |
8564 | } else { | |
8565 | printk(TPACPI_NOTICE | |
8566 | "ThinkPad firmware release %s " | |
8567 | "doesn't match the known patterns\n", | |
8568 | ec_fw_string); | |
8569 | printk(TPACPI_NOTICE | |
8570 | "please report this to %s\n", | |
8571 | TPACPI_MAIL); | |
8572 | } | |
d5a2f2f1 | 8573 | break; |
78f81cc4 | 8574 | } |
1da177e4 | 8575 | } |
d5a2f2f1 | 8576 | |
bf20e740 HMH |
8577 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
8578 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
8579 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
8580 | if (!tp->model_str) | |
8581 | return -ENOMEM; | |
d5a2f2f1 | 8582 | } |
8c74adbc | 8583 | |
bf20e740 HMH |
8584 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
8585 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
8586 | if (s && !tp->nummodel_str) | |
8587 | return -ENOMEM; | |
8588 | ||
8589 | return 0; | |
1da177e4 LT |
8590 | } |
8591 | ||
5fba344c HMH |
8592 | static int __init probe_for_thinkpad(void) |
8593 | { | |
8594 | int is_thinkpad; | |
8595 | ||
8596 | if (acpi_disabled) | |
8597 | return -ENODEV; | |
8598 | ||
8599 | /* | |
8600 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 8601 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 8602 | */ |
e675abaf HMH |
8603 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
8604 | (thinkpad_id.ec_model != 0) || | |
8605 | tpacpi_is_fw_known(); | |
5fba344c HMH |
8606 | |
8607 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 8608 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
8609 | if (!ec_handle) { |
8610 | if (is_thinkpad) | |
e0c7dfe7 | 8611 | printk(TPACPI_ERR |
5fba344c HMH |
8612 | "Not yet supported ThinkPad detected!\n"); |
8613 | return -ENODEV; | |
8614 | } | |
8615 | ||
0dcef77c HMH |
8616 | if (!is_thinkpad && !force_load) |
8617 | return -ENODEV; | |
8618 | ||
5fba344c HMH |
8619 | return 0; |
8620 | } | |
8621 | ||
8622 | ||
56b6aeb0 | 8623 | /* Module init, exit, parameters */ |
1da177e4 | 8624 | |
a5763f22 HMH |
8625 | static struct ibm_init_struct ibms_init[] __initdata = { |
8626 | { | |
8627 | .init = thinkpad_acpi_driver_init, | |
8628 | .data = &thinkpad_acpi_driver_data, | |
8629 | }, | |
8630 | { | |
8631 | .init = hotkey_init, | |
8632 | .data = &hotkey_driver_data, | |
8633 | }, | |
8634 | { | |
8635 | .init = bluetooth_init, | |
8636 | .data = &bluetooth_driver_data, | |
8637 | }, | |
8638 | { | |
8639 | .init = wan_init, | |
8640 | .data = &wan_driver_data, | |
8641 | }, | |
0045c0aa HMH |
8642 | { |
8643 | .init = uwb_init, | |
8644 | .data = &uwb_driver_data, | |
8645 | }, | |
d7c1d17d | 8646 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
8647 | { |
8648 | .init = video_init, | |
8649 | .data = &video_driver_data, | |
8650 | }, | |
d7c1d17d | 8651 | #endif |
a5763f22 HMH |
8652 | { |
8653 | .init = light_init, | |
8654 | .data = &light_driver_data, | |
8655 | }, | |
a5763f22 HMH |
8656 | { |
8657 | .init = cmos_init, | |
8658 | .data = &cmos_driver_data, | |
8659 | }, | |
8660 | { | |
8661 | .init = led_init, | |
8662 | .data = &led_driver_data, | |
8663 | }, | |
8664 | { | |
8665 | .init = beep_init, | |
8666 | .data = &beep_driver_data, | |
8667 | }, | |
8668 | { | |
8669 | .init = thermal_init, | |
8670 | .data = &thermal_driver_data, | |
8671 | }, | |
8672 | { | |
8673 | .data = &ecdump_driver_data, | |
8674 | }, | |
8675 | { | |
8676 | .init = brightness_init, | |
8677 | .data = &brightness_driver_data, | |
8678 | }, | |
8679 | { | |
329e4e18 | 8680 | .init = volume_init, |
a5763f22 HMH |
8681 | .data = &volume_driver_data, |
8682 | }, | |
8683 | { | |
8684 | .init = fan_init, | |
8685 | .data = &fan_driver_data, | |
8686 | }, | |
8687 | }; | |
8688 | ||
3945ac36 | 8689 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
8690 | { |
8691 | unsigned int i; | |
a5763f22 | 8692 | struct ibm_struct *ibm; |
1da177e4 | 8693 | |
59f91ff1 HMH |
8694 | if (!kp || !kp->name || !val) |
8695 | return -EINVAL; | |
8696 | ||
a5763f22 HMH |
8697 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
8698 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
8699 | WARN_ON(ibm == NULL); |
8700 | ||
8701 | if (!ibm || !ibm->name) | |
8702 | continue; | |
a5763f22 HMH |
8703 | |
8704 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
8705 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 8706 | return -ENOSPC; |
a5763f22 HMH |
8707 | strcpy(ibms_init[i].param, val); |
8708 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
8709 | return 0; |
8710 | } | |
a5763f22 | 8711 | } |
1da177e4 | 8712 | |
1da177e4 LT |
8713 | return -EINVAL; |
8714 | } | |
8715 | ||
b09c7225 | 8716 | module_param(experimental, int, 0444); |
f68080f8 | 8717 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 8718 | "Enables experimental features when non-zero"); |
56b6aeb0 | 8719 | |
132ce091 | 8720 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 8721 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 8722 | |
b09c7225 | 8723 | module_param(force_load, bool, 0444); |
f68080f8 | 8724 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
8725 | "Attempts to load the driver even on a " |
8726 | "mis-identified ThinkPad when true"); | |
0dcef77c | 8727 | |
b09c7225 | 8728 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 8729 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 8730 | "Enables setting fan parameters features when true"); |
ecf2a80a | 8731 | |
b09c7225 | 8732 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 8733 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 8734 | "Selects brightness control strategy: " |
0e501834 | 8735 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 8736 | |
b09c7225 | 8737 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 8738 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 8739 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 8740 | |
b09c7225 | 8741 | module_param(hotkey_report_mode, uint, 0444); |
f68080f8 | 8742 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
8743 | "used for backwards compatibility with userspace, " |
8744 | "see documentation"); | |
ff80f137 | 8745 | |
329e4e18 HMH |
8746 | module_param_named(volume_mode, volume_mode, uint, 0444); |
8747 | MODULE_PARM_DESC(volume_mode, | |
8748 | "Selects volume control strategy: " | |
8749 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
8750 | ||
a112ceee HMH |
8751 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
8752 | MODULE_PARM_DESC(volume_capabilities, | |
8753 | "Selects the mixer capabilites: " | |
8754 | "0=auto, 1=volume and mute, 2=mute only"); | |
8755 | ||
c7ac6291 HMH |
8756 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
8757 | MODULE_PARM_DESC(volume_control, | |
8758 | "Enables software override for the console audio " | |
8759 | "control when true"); | |
8760 | ||
0d204c34 HMH |
8761 | /* ALSA module API parameters */ |
8762 | module_param_named(index, alsa_index, int, 0444); | |
8763 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
8764 | module_param_named(id, alsa_id, charp, 0444); | |
8765 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
8766 | module_param_named(enable, alsa_enable, bool, 0444); | |
8767 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
8768 | ||
e0c7dfe7 | 8769 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 8770 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 8771 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 8772 | "at module load, see documentation") |
1da177e4 | 8773 | |
e0c7dfe7 HMH |
8774 | TPACPI_PARAM(hotkey); |
8775 | TPACPI_PARAM(bluetooth); | |
8776 | TPACPI_PARAM(video); | |
8777 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
8778 | TPACPI_PARAM(cmos); |
8779 | TPACPI_PARAM(led); | |
8780 | TPACPI_PARAM(beep); | |
8781 | TPACPI_PARAM(ecdump); | |
8782 | TPACPI_PARAM(brightness); | |
8783 | TPACPI_PARAM(volume); | |
8784 | TPACPI_PARAM(fan); | |
78f81cc4 | 8785 | |
a73f3091 | 8786 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 8787 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
8788 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
8789 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
8790 | MODULE_PARM_DESC(wlsw_state, | |
8791 | "Initial state of the emulated WLSW switch"); | |
8792 | ||
b09c7225 | 8793 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
8794 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
8795 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
8796 | MODULE_PARM_DESC(bluetooth_state, | |
8797 | "Initial state of the emulated bluetooth switch"); | |
8798 | ||
b09c7225 | 8799 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
8800 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
8801 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
8802 | MODULE_PARM_DESC(wwan_state, | |
8803 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 8804 | |
b09c7225 | 8805 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
8806 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
8807 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
8808 | MODULE_PARM_DESC(uwb_state, | |
8809 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
8810 | #endif |
8811 | ||
b21a15f6 HMH |
8812 | static void thinkpad_acpi_module_exit(void) |
8813 | { | |
8814 | struct ibm_struct *ibm, *itmp; | |
8815 | ||
8816 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
8817 | ||
8818 | list_for_each_entry_safe_reverse(ibm, itmp, | |
8819 | &tpacpi_all_drivers, | |
8820 | all_drivers) { | |
8821 | ibm_exit(ibm); | |
8822 | } | |
8823 | ||
8824 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
8825 | ||
8826 | if (tpacpi_inputdev) { | |
8827 | if (tp_features.input_device_registered) | |
8828 | input_unregister_device(tpacpi_inputdev); | |
8829 | else | |
8830 | input_free_device(tpacpi_inputdev); | |
8831 | } | |
8832 | ||
8833 | if (tpacpi_hwmon) | |
8834 | hwmon_device_unregister(tpacpi_hwmon); | |
8835 | ||
8836 | if (tp_features.sensors_pdev_attrs_registered) | |
8837 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
8838 | &dev_attr_thinkpad_acpi_pdev_name); | |
8839 | if (tpacpi_sensors_pdev) | |
8840 | platform_device_unregister(tpacpi_sensors_pdev); | |
8841 | if (tpacpi_pdev) | |
8842 | platform_device_unregister(tpacpi_pdev); | |
8843 | ||
8844 | if (tp_features.sensors_pdrv_attrs_registered) | |
8845 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
8846 | if (tp_features.platform_drv_attrs_registered) | |
8847 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
8848 | ||
8849 | if (tp_features.sensors_pdrv_registered) | |
8850 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
8851 | ||
8852 | if (tp_features.platform_drv_registered) | |
8853 | platform_driver_unregister(&tpacpi_pdriver); | |
8854 | ||
8855 | if (proc_dir) | |
e0c7dfe7 | 8856 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 8857 | |
e0e3c061 HMH |
8858 | if (tpacpi_wq) |
8859 | destroy_workqueue(tpacpi_wq); | |
8860 | ||
b21a15f6 HMH |
8861 | kfree(thinkpad_id.bios_version_str); |
8862 | kfree(thinkpad_id.ec_version_str); | |
8863 | kfree(thinkpad_id.model_str); | |
8864 | } | |
8865 | ||
f74a27d4 | 8866 | |
1def7115 | 8867 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
8868 | { |
8869 | int ret, i; | |
8870 | ||
8fef502e HMH |
8871 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
8872 | ||
ff80f137 HMH |
8873 | /* Parameter checking */ |
8874 | if (hotkey_report_mode > 2) | |
8875 | return -EINVAL; | |
8876 | ||
54ae1501 | 8877 | /* Driver-level probe */ |
d5a2f2f1 | 8878 | |
bf20e740 HMH |
8879 | ret = get_thinkpad_model_data(&thinkpad_id); |
8880 | if (ret) { | |
8881 | printk(TPACPI_ERR | |
8882 | "unable to get DMI data: %d\n", ret); | |
8883 | thinkpad_acpi_module_exit(); | |
8884 | return ret; | |
8885 | } | |
5fba344c | 8886 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
8887 | if (ret) { |
8888 | thinkpad_acpi_module_exit(); | |
5fba344c | 8889 | return ret; |
d5a2f2f1 | 8890 | } |
1da177e4 | 8891 | |
54ae1501 | 8892 | /* Driver initialization */ |
d5a2f2f1 | 8893 | |
e0c7dfe7 HMH |
8894 | TPACPI_ACPIHANDLE_INIT(ecrd); |
8895 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 8896 | |
e0e3c061 HMH |
8897 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
8898 | if (!tpacpi_wq) { | |
8899 | thinkpad_acpi_module_exit(); | |
8900 | return -ENOMEM; | |
8901 | } | |
8902 | ||
e0c7dfe7 | 8903 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 8904 | if (!proc_dir) { |
35ff8b9f HMH |
8905 | printk(TPACPI_ERR |
8906 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 8907 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
8908 | return -ENODEV; |
8909 | } | |
78f81cc4 | 8910 | |
54ae1501 HMH |
8911 | ret = platform_driver_register(&tpacpi_pdriver); |
8912 | if (ret) { | |
35ff8b9f HMH |
8913 | printk(TPACPI_ERR |
8914 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
8915 | thinkpad_acpi_module_exit(); |
8916 | return ret; | |
8917 | } | |
ac36393d HMH |
8918 | tp_features.platform_drv_registered = 1; |
8919 | ||
7fd40029 HMH |
8920 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
8921 | if (ret) { | |
35ff8b9f HMH |
8922 | printk(TPACPI_ERR |
8923 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
8924 | thinkpad_acpi_module_exit(); |
8925 | return ret; | |
8926 | } | |
8927 | tp_features.sensors_pdrv_registered = 1; | |
8928 | ||
176750d6 | 8929 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
8930 | if (!ret) { |
8931 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
8932 | ret = tpacpi_create_driver_attributes( |
8933 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 8934 | } |
176750d6 | 8935 | if (ret) { |
35ff8b9f HMH |
8936 | printk(TPACPI_ERR |
8937 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
8938 | thinkpad_acpi_module_exit(); |
8939 | return ret; | |
8940 | } | |
2369cc94 | 8941 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 8942 | |
54ae1501 HMH |
8943 | |
8944 | /* Device initialization */ | |
e0c7dfe7 | 8945 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
8946 | NULL, 0); |
8947 | if (IS_ERR(tpacpi_pdev)) { | |
8948 | ret = PTR_ERR(tpacpi_pdev); | |
8949 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 8950 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
8951 | thinkpad_acpi_module_exit(); |
8952 | return ret; | |
8953 | } | |
7fd40029 | 8954 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
8955 | TPACPI_HWMON_DRVR_NAME, |
8956 | -1, NULL, 0); | |
7fd40029 HMH |
8957 | if (IS_ERR(tpacpi_sensors_pdev)) { |
8958 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
8959 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
8960 | printk(TPACPI_ERR |
8961 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
8962 | thinkpad_acpi_module_exit(); |
8963 | return ret; | |
8964 | } | |
8965 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
8966 | &dev_attr_thinkpad_acpi_pdev_name); | |
8967 | if (ret) { | |
e0c7dfe7 | 8968 | printk(TPACPI_ERR |
35ff8b9f | 8969 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
8970 | thinkpad_acpi_module_exit(); |
8971 | return ret; | |
8972 | } | |
8973 | tp_features.sensors_pdev_attrs_registered = 1; | |
8974 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
8975 | if (IS_ERR(tpacpi_hwmon)) { |
8976 | ret = PTR_ERR(tpacpi_hwmon); | |
8977 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 8978 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
8979 | thinkpad_acpi_module_exit(); |
8980 | return ret; | |
8981 | } | |
8523ed6f | 8982 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
8983 | tpacpi_inputdev = input_allocate_device(); |
8984 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 8985 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
8986 | thinkpad_acpi_module_exit(); |
8987 | return -ENOMEM; | |
8988 | } else { | |
8989 | /* Prepare input device, but don't register */ | |
8990 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 8991 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 8992 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
8993 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
8994 | thinkpad_id.vendor : | |
8995 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
8996 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
8997 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 8998 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 8999 | } |
a5763f22 HMH |
9000 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9001 | ret = ibm_init(&ibms_init[i]); | |
9002 | if (ret >= 0 && *ibms_init[i].param) | |
9003 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9004 | if (ret < 0) { |
1def7115 | 9005 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9006 | return ret; |
9007 | } | |
9008 | } | |
7f5d1cd6 HMH |
9009 | ret = input_register_device(tpacpi_inputdev); |
9010 | if (ret < 0) { | |
e0c7dfe7 | 9011 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
9012 | thinkpad_acpi_module_exit(); |
9013 | return ret; | |
9014 | } else { | |
9015 | tp_features.input_device_registered = 1; | |
9016 | } | |
1da177e4 | 9017 | |
8fef502e | 9018 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
9019 | return 0; |
9020 | } | |
9021 | ||
95e57ab2 HMH |
9022 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9023 | ||
922fe097 HMH |
9024 | /* |
9025 | * This will autoload the driver in almost every ThinkPad | |
9026 | * in widespread use. | |
9027 | * | |
9028 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9029 | * the HKEY event interface. | |
9030 | */ | |
9031 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9032 | ||
f68080f8 HMH |
9033 | /* |
9034 | * DMI matching for module autoloading | |
9035 | * | |
9036 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9037 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9038 | * | |
9039 | * Only models listed in thinkwiki will be supported, so add yours | |
9040 | * if it is not there yet. | |
9041 | */ | |
9042 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9043 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9044 | |
f68080f8 HMH |
9045 | /* Ancient thinkpad BIOSes have to be identified by |
9046 | * BIOS type or model number, and there are far less | |
9047 | * BIOS types than model numbers... */ | |
922fe097 | 9048 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9049 | |
f68f53a2 HMH |
9050 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9051 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9052 | MODULE_DESCRIPTION(TPACPI_DESC); |
9053 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9054 | MODULE_LICENSE("GPL"); |
9055 | ||
1def7115 HMH |
9056 | module_init(thinkpad_acpi_module_init); |
9057 | module_exit(thinkpad_acpi_module_exit); |