Commit | Line | Data |
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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
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 *); | |
b525c06c | 289 | mode_t base_procfs_mode; |
0c78039f HMH |
290 | struct ibm_struct *data; |
291 | }; | |
292 | ||
293 | static struct { | |
0c78039f HMH |
294 | u32 bluetooth:1; |
295 | u32 hotkey:1; | |
296 | u32 hotkey_mask:1; | |
297 | u32 hotkey_wlsw:1; | |
6c231bd5 | 298 | u32 hotkey_tablet:1; |
0c78039f HMH |
299 | u32 light:1; |
300 | u32 light_status:1; | |
301 | u32 bright_16levels:1; | |
b5972796 | 302 | u32 bright_acpimode:1; |
0c78039f | 303 | u32 wan:1; |
0045c0aa | 304 | u32 uwb:1; |
0c78039f | 305 | u32 fan_ctrl_status_undef:1; |
d7377247 | 306 | u32 second_fan:1; |
60201732 | 307 | u32 beep_needs_two_args:1; |
a112ceee | 308 | u32 mixer_no_level_control:1; |
0c78039f HMH |
309 | u32 input_device_registered:1; |
310 | u32 platform_drv_registered:1; | |
311 | u32 platform_drv_attrs_registered:1; | |
312 | u32 sensors_pdrv_registered:1; | |
313 | u32 sensors_pdrv_attrs_registered:1; | |
314 | u32 sensors_pdev_attrs_registered:1; | |
315 | u32 hotkey_poll_active:1; | |
316 | } tp_features; | |
317 | ||
92889022 HMH |
318 | static struct { |
319 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 320 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
321 | } tp_warned; |
322 | ||
0c78039f HMH |
323 | struct thinkpad_id_data { |
324 | unsigned int vendor; /* ThinkPad vendor: | |
325 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
326 | ||
327 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
328 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
329 | ||
050df107 | 330 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 331 | u16 ec_model; |
050df107 HMH |
332 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
333 | u16 ec_release; | |
0c78039f | 334 | |
8c74adbc HMH |
335 | char *model_str; /* ThinkPad T43 */ |
336 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 337 | }; |
0c78039f HMH |
338 | static struct thinkpad_id_data thinkpad_id; |
339 | ||
8fef502e HMH |
340 | static enum { |
341 | TPACPI_LIFE_INIT = 0, | |
342 | TPACPI_LIFE_RUNNING, | |
343 | TPACPI_LIFE_EXITING, | |
344 | } tpacpi_lifecycle; | |
345 | ||
b21a15f6 HMH |
346 | static int experimental; |
347 | static u32 dbg_level; | |
348 | ||
e0e3c061 HMH |
349 | static struct workqueue_struct *tpacpi_wq; |
350 | ||
75bd3bf2 HMH |
351 | enum led_status_t { |
352 | TPACPI_LED_OFF = 0, | |
353 | TPACPI_LED_ON, | |
354 | TPACPI_LED_BLINK, | |
355 | }; | |
356 | ||
4fa6811b HMH |
357 | /* Special LED class that can defer work */ |
358 | struct tpacpi_led_classdev { | |
359 | struct led_classdev led_classdev; | |
360 | struct work_struct work; | |
75bd3bf2 | 361 | enum led_status_t new_state; |
af116101 | 362 | unsigned int led; |
4fa6811b HMH |
363 | }; |
364 | ||
a73f3091 HMH |
365 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
366 | static int dbg_wlswemul; | |
367 | static int tpacpi_wlsw_emulstate; | |
368 | static int dbg_bluetoothemul; | |
369 | static int tpacpi_bluetooth_emulstate; | |
370 | static int dbg_wwanemul; | |
371 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
372 | static int dbg_uwbemul; |
373 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
374 | #endif |
375 | ||
376 | ||
3dcc2c3b HMH |
377 | /************************************************************************* |
378 | * Debugging helpers | |
379 | */ | |
380 | ||
381 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
382 | do { if (dbg_level & (a_dbg_level)) \ | |
383 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ | |
384 | } while (0) | |
385 | ||
386 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
387 | #define vdbg_printk dbg_printk | |
388 | static const char *str_supported(int is_supported); | |
389 | #else | |
390 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
391 | do { } while (0) | |
392 | #endif | |
393 | ||
73a94d86 HMH |
394 | static void tpacpi_log_usertask(const char * const what) |
395 | { | |
396 | printk(TPACPI_DEBUG "%s: access by process with PID %d\n", | |
397 | what, task_tgid_vnr(current)); | |
398 | } | |
399 | ||
400 | #define tpacpi_disclose_usertask(what, format, arg...) \ | |
401 | do { \ | |
402 | if (unlikely( \ | |
403 | (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
404 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
405 | printk(TPACPI_DEBUG "%s: PID %d: " format, \ | |
406 | what, task_tgid_vnr(current), ## arg); \ | |
407 | } \ | |
408 | } while (0) | |
3dcc2c3b | 409 | |
7d95a3d5 HMH |
410 | /* |
411 | * Quirk handling helpers | |
412 | * | |
413 | * ThinkPad IDs and versions seen in the field so far | |
414 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
415 | * | |
416 | * We use values well outside that range as specials. | |
417 | */ | |
418 | ||
419 | #define TPACPI_MATCH_ANY 0xffffU | |
420 | #define TPACPI_MATCH_UNKNOWN 0U | |
421 | ||
422 | /* TPID('1', 'Y') == 0x5931 */ | |
423 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
424 | ||
425 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
426 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
427 | .bios = TPID(__id1, __id2), \ | |
428 | .ec = TPACPI_MATCH_ANY, \ | |
429 | .quirks = (__quirk) } | |
430 | ||
431 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
432 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
433 | .bios = TPID(__id1, __id2), \ | |
434 | .ec = TPACPI_MATCH_ANY, \ | |
435 | .quirks = (__quirk) } | |
436 | ||
a112ceee HMH |
437 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
438 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
439 | .bios = TPACPI_MATCH_ANY, \ | |
440 | .ec = TPID(__id1, __id2), \ | |
441 | .quirks = (__quirk) } | |
442 | ||
7d95a3d5 HMH |
443 | struct tpacpi_quirk { |
444 | unsigned int vendor; | |
445 | u16 bios; | |
446 | u16 ec; | |
447 | unsigned long quirks; | |
448 | }; | |
449 | ||
450 | /** | |
451 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
452 | * @qlist: array of &struct tpacpi_quirk | |
453 | * @qlist_size: number of elements in @qlist | |
454 | * | |
455 | * Iterates over a quirks list until one is found that matches the | |
456 | * ThinkPad's vendor, BIOS and EC model. | |
457 | * | |
458 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
459 | * the matching &struct tpacpi_quirk entry. | |
460 | * | |
461 | * The match criteria is: vendor, ec and bios much match. | |
462 | */ | |
463 | static unsigned long __init tpacpi_check_quirks( | |
464 | const struct tpacpi_quirk *qlist, | |
465 | unsigned int qlist_size) | |
466 | { | |
467 | while (qlist_size) { | |
468 | if ((qlist->vendor == thinkpad_id.vendor || | |
469 | qlist->vendor == TPACPI_MATCH_ANY) && | |
470 | (qlist->bios == thinkpad_id.bios_model || | |
471 | qlist->bios == TPACPI_MATCH_ANY) && | |
472 | (qlist->ec == thinkpad_id.ec_model || | |
473 | qlist->ec == TPACPI_MATCH_ANY)) | |
474 | return qlist->quirks; | |
475 | ||
476 | qlist_size--; | |
477 | qlist++; | |
478 | } | |
479 | return 0; | |
480 | } | |
481 | ||
482 | ||
56b6aeb0 HMH |
483 | /**************************************************************************** |
484 | **************************************************************************** | |
485 | * | |
486 | * ACPI Helpers and device model | |
487 | * | |
488 | **************************************************************************** | |
489 | ****************************************************************************/ | |
490 | ||
491 | /************************************************************************* | |
492 | * ACPI basic handles | |
493 | */ | |
1da177e4 | 494 | |
94954cc6 | 495 | static acpi_handle root_handle; |
1da177e4 | 496 | |
e0c7dfe7 | 497 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
498 | static acpi_handle object##_handle; \ |
499 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 500 | static char *object##_path; \ |
1da177e4 LT |
501 | static char *object##_paths[] = { paths } |
502 | ||
e0c7dfe7 | 503 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
504 | "\\_SB.PCI.ISA.EC", /* 570 */ |
505 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
506 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
507 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
508 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
509 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 510 | ); |
78f81cc4 | 511 | |
e0c7dfe7 HMH |
512 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
513 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 514 | |
35ff8b9f HMH |
515 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
516 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
517 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
518 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 519 | ); /* all others */ |
78f81cc4 | 520 | |
e0c7dfe7 | 521 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
522 | "^HKEY", /* R30, R31 */ |
523 | "HKEY", /* all others */ | |
56b6aeb0 | 524 | ); /* 570 */ |
78f81cc4 | 525 | |
d7c1d17d HMH |
526 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
527 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
528 | "\\_SB.PCI0.VID0", /* 770e */ | |
529 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
530 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
531 | ); /* R30, R31 */ | |
532 | ||
78f81cc4 | 533 | |
56b6aeb0 HMH |
534 | /************************************************************************* |
535 | * ACPI helpers | |
a8b7a662 HMH |
536 | */ |
537 | ||
1da177e4 LT |
538 | static int acpi_evalf(acpi_handle handle, |
539 | void *res, char *method, char *fmt, ...) | |
540 | { | |
541 | char *fmt0 = fmt; | |
78f81cc4 | 542 | struct acpi_object_list params; |
e0c7dfe7 | 543 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
544 | struct acpi_buffer result, *resultp; |
545 | union acpi_object out_obj; | |
546 | acpi_status status; | |
547 | va_list ap; | |
548 | char res_type; | |
549 | int success; | |
550 | int quiet; | |
1da177e4 LT |
551 | |
552 | if (!*fmt) { | |
e0c7dfe7 | 553 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
554 | return 0; |
555 | } | |
556 | ||
557 | if (*fmt == 'q') { | |
558 | quiet = 1; | |
559 | fmt++; | |
560 | } else | |
561 | quiet = 0; | |
562 | ||
563 | res_type = *(fmt++); | |
564 | ||
565 | params.count = 0; | |
566 | params.pointer = &in_objs[0]; | |
567 | ||
568 | va_start(ap, fmt); | |
569 | while (*fmt) { | |
570 | char c = *(fmt++); | |
571 | switch (c) { | |
572 | case 'd': /* int */ | |
573 | in_objs[params.count].integer.value = va_arg(ap, int); | |
574 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
575 | break; | |
78f81cc4 | 576 | /* add more types as needed */ |
1da177e4 | 577 | default: |
e0c7dfe7 | 578 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
579 | "with invalid format character '%c'\n", c); |
580 | return 0; | |
581 | } | |
582 | } | |
583 | va_end(ap); | |
584 | ||
78f81cc4 BD |
585 | if (res_type != 'v') { |
586 | result.length = sizeof(out_obj); | |
587 | result.pointer = &out_obj; | |
588 | resultp = &result; | |
589 | } else | |
590 | resultp = NULL; | |
1da177e4 | 591 | |
78f81cc4 | 592 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
593 | |
594 | switch (res_type) { | |
78f81cc4 | 595 | case 'd': /* int */ |
1da177e4 LT |
596 | if (res) |
597 | *(int *)res = out_obj.integer.value; | |
598 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
599 | break; | |
78f81cc4 | 600 | case 'v': /* void */ |
1da177e4 LT |
601 | success = status == AE_OK; |
602 | break; | |
78f81cc4 | 603 | /* add more types as needed */ |
1da177e4 | 604 | default: |
e0c7dfe7 | 605 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
606 | "with invalid format character '%c'\n", res_type); |
607 | return 0; | |
608 | } | |
609 | ||
56b6aeb0 | 610 | if (!success && !quiet) |
e0c7dfe7 | 611 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
612 | method, fmt0, status); |
613 | ||
614 | return success; | |
615 | } | |
616 | ||
35ff8b9f | 617 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
618 | { |
619 | int v; | |
620 | ||
621 | if (ecrd_handle) { | |
622 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
623 | return 0; | |
624 | *p = v; | |
625 | } else { | |
626 | if (ec_read(i, p) < 0) | |
627 | return 0; | |
628 | } | |
629 | ||
630 | return 1; | |
631 | } | |
632 | ||
633 | static int acpi_ec_write(int i, u8 v) | |
634 | { | |
635 | if (ecwr_handle) { | |
636 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
637 | return 0; | |
638 | } else { | |
639 | if (ec_write(i, v) < 0) | |
640 | return 0; | |
641 | } | |
642 | ||
643 | return 1; | |
644 | } | |
645 | ||
c9bea99c HMH |
646 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
647 | { | |
648 | if (!cmos_handle) | |
649 | return -ENXIO; | |
650 | ||
651 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
652 | return -EIO; | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
56b6aeb0 HMH |
657 | /************************************************************************* |
658 | * ACPI device model | |
659 | */ | |
660 | ||
35ff8b9f HMH |
661 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
662 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
663 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
664 | ||
8d376cd6 | 665 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
666 | acpi_handle *handle, acpi_handle parent, |
667 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
668 | { |
669 | int i; | |
670 | acpi_status status; | |
671 | ||
5ae930e6 HMH |
672 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
673 | name); | |
674 | ||
56b6aeb0 HMH |
675 | for (i = 0; i < num_paths; i++) { |
676 | status = acpi_get_handle(parent, paths[i], handle); | |
677 | if (ACPI_SUCCESS(status)) { | |
678 | *path = paths[i]; | |
5ae930e6 HMH |
679 | dbg_printk(TPACPI_DBG_INIT, |
680 | "Found ACPI handle %s for %s\n", | |
681 | *path, name); | |
56b6aeb0 HMH |
682 | return; |
683 | } | |
684 | } | |
685 | ||
5ae930e6 HMH |
686 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
687 | name); | |
56b6aeb0 HMH |
688 | *handle = NULL; |
689 | } | |
690 | ||
8d376cd6 | 691 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
692 | { |
693 | struct ibm_struct *ibm = data; | |
694 | ||
8fef502e HMH |
695 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
696 | return; | |
697 | ||
8d376cd6 | 698 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
699 | return; |
700 | ||
8d376cd6 | 701 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
702 | } |
703 | ||
8d376cd6 | 704 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
705 | { |
706 | acpi_status status; | |
5ae930e6 | 707 | int rc; |
56b6aeb0 | 708 | |
8d376cd6 HMH |
709 | BUG_ON(!ibm->acpi); |
710 | ||
711 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
712 | return 0; |
713 | ||
5ae930e6 | 714 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
715 | "setting up ACPI notify for %s\n", ibm->name); |
716 | ||
5ae930e6 HMH |
717 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
718 | if (rc < 0) { | |
e0c7dfe7 | 719 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 720 | ibm->name, rc); |
56b6aeb0 HMH |
721 | return -ENODEV; |
722 | } | |
723 | ||
db89b4f0 | 724 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 725 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 726 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 727 | ibm->name); |
56b6aeb0 | 728 | |
8d376cd6 HMH |
729 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
730 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
731 | if (ACPI_FAILURE(status)) { |
732 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
733 | printk(TPACPI_NOTICE |
734 | "another device driver is already " | |
735 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 736 | } else { |
35ff8b9f HMH |
737 | printk(TPACPI_ERR |
738 | "acpi_install_notify_handler(%s) failed: %d\n", | |
739 | ibm->name, status); | |
56b6aeb0 HMH |
740 | } |
741 | return -ENODEV; | |
742 | } | |
8d376cd6 | 743 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
744 | return 0; |
745 | } | |
746 | ||
8d376cd6 | 747 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
748 | { |
749 | return 0; | |
750 | } | |
751 | ||
6700121b | 752 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 753 | { |
5ae930e6 | 754 | int rc; |
56b6aeb0 | 755 | |
fe08bc4b HMH |
756 | dbg_printk(TPACPI_DBG_INIT, |
757 | "registering %s as an ACPI driver\n", ibm->name); | |
758 | ||
8d376cd6 HMH |
759 | BUG_ON(!ibm->acpi); |
760 | ||
761 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
762 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
763 | printk(TPACPI_ERR |
764 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 765 | return -ENOMEM; |
56b6aeb0 HMH |
766 | } |
767 | ||
e0c7dfe7 | 768 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 769 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 770 | |
8d376cd6 | 771 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 772 | |
5ae930e6 HMH |
773 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
774 | if (rc < 0) { | |
e0c7dfe7 | 775 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 776 | ibm->name, rc); |
8d376cd6 HMH |
777 | kfree(ibm->acpi->driver); |
778 | ibm->acpi->driver = NULL; | |
5ae930e6 | 779 | } else if (!rc) |
8d376cd6 | 780 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 781 | |
5ae930e6 | 782 | return rc; |
56b6aeb0 HMH |
783 | } |
784 | ||
785 | ||
786 | /**************************************************************************** | |
787 | **************************************************************************** | |
788 | * | |
789 | * Procfs Helpers | |
790 | * | |
791 | **************************************************************************** | |
792 | ****************************************************************************/ | |
793 | ||
887965e6 | 794 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 795 | { |
887965e6 | 796 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
797 | |
798 | if (!ibm || !ibm->read) | |
799 | return -EINVAL; | |
887965e6 AD |
800 | return ibm->read(m); |
801 | } | |
56b6aeb0 | 802 | |
887965e6 AD |
803 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
804 | { | |
805 | return single_open(file, dispatch_proc_show, PDE(inode)->data); | |
56b6aeb0 HMH |
806 | } |
807 | ||
887965e6 | 808 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 809 | const char __user *userbuf, |
887965e6 | 810 | size_t count, loff_t *pos) |
56b6aeb0 | 811 | { |
887965e6 | 812 | struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data; |
56b6aeb0 HMH |
813 | char *kernbuf; |
814 | int ret; | |
815 | ||
816 | if (!ibm || !ibm->write) | |
817 | return -EINVAL; | |
5b05d469 MB |
818 | if (count > PAGE_SIZE - 2) |
819 | return -EINVAL; | |
56b6aeb0 HMH |
820 | |
821 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
822 | if (!kernbuf) | |
823 | return -ENOMEM; | |
1da177e4 | 824 | |
56b6aeb0 HMH |
825 | if (copy_from_user(kernbuf, userbuf, count)) { |
826 | kfree(kernbuf); | |
827 | return -EFAULT; | |
828 | } | |
1da177e4 | 829 | |
56b6aeb0 HMH |
830 | kernbuf[count] = 0; |
831 | strcat(kernbuf, ","); | |
832 | ret = ibm->write(kernbuf); | |
833 | if (ret == 0) | |
834 | ret = count; | |
1da177e4 | 835 | |
56b6aeb0 HMH |
836 | kfree(kernbuf); |
837 | ||
838 | return ret; | |
1da177e4 LT |
839 | } |
840 | ||
887965e6 AD |
841 | static const struct file_operations dispatch_proc_fops = { |
842 | .owner = THIS_MODULE, | |
843 | .open = dispatch_proc_open, | |
844 | .read = seq_read, | |
845 | .llseek = seq_lseek, | |
846 | .release = single_release, | |
847 | .write = dispatch_proc_write, | |
848 | }; | |
849 | ||
1da177e4 LT |
850 | static char *next_cmd(char **cmds) |
851 | { | |
852 | char *start = *cmds; | |
853 | char *end; | |
854 | ||
855 | while ((end = strchr(start, ',')) && end == start) | |
856 | start = end + 1; | |
857 | ||
858 | if (!end) | |
859 | return NULL; | |
860 | ||
861 | *end = 0; | |
862 | *cmds = end + 1; | |
863 | return start; | |
864 | } | |
865 | ||
56b6aeb0 | 866 | |
54ae1501 HMH |
867 | /**************************************************************************** |
868 | **************************************************************************** | |
869 | * | |
7f5d1cd6 | 870 | * Device model: input, hwmon and platform |
54ae1501 HMH |
871 | * |
872 | **************************************************************************** | |
873 | ****************************************************************************/ | |
874 | ||
94954cc6 | 875 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 876 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 877 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 878 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 879 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 880 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 881 | |
083f1760 HMH |
882 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
883 | pm_message_t state) | |
884 | { | |
885 | struct ibm_struct *ibm, *itmp; | |
886 | ||
887 | list_for_each_entry_safe(ibm, itmp, | |
888 | &tpacpi_all_drivers, | |
889 | all_drivers) { | |
890 | if (ibm->suspend) | |
891 | (ibm->suspend)(state); | |
892 | } | |
893 | ||
894 | return 0; | |
895 | } | |
896 | ||
e295e850 HMH |
897 | static int tpacpi_resume_handler(struct platform_device *pdev) |
898 | { | |
899 | struct ibm_struct *ibm, *itmp; | |
900 | ||
901 | list_for_each_entry_safe(ibm, itmp, | |
902 | &tpacpi_all_drivers, | |
903 | all_drivers) { | |
904 | if (ibm->resume) | |
905 | (ibm->resume)(); | |
906 | } | |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
90d9d3c7 HMH |
911 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
912 | { | |
913 | struct ibm_struct *ibm, *itmp; | |
914 | ||
915 | list_for_each_entry_safe(ibm, itmp, | |
916 | &tpacpi_all_drivers, | |
917 | all_drivers) { | |
918 | if (ibm->shutdown) | |
919 | (ibm->shutdown)(); | |
920 | } | |
921 | } | |
922 | ||
54ae1501 HMH |
923 | static struct platform_driver tpacpi_pdriver = { |
924 | .driver = { | |
e0c7dfe7 | 925 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
926 | .owner = THIS_MODULE, |
927 | }, | |
083f1760 | 928 | .suspend = tpacpi_suspend_handler, |
e295e850 | 929 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 930 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
931 | }; |
932 | ||
7fd40029 HMH |
933 | static struct platform_driver tpacpi_hwmon_pdriver = { |
934 | .driver = { | |
e0c7dfe7 | 935 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
936 | .owner = THIS_MODULE, |
937 | }, | |
938 | }; | |
54ae1501 | 939 | |
176750d6 | 940 | /************************************************************************* |
b21a15f6 | 941 | * sysfs support helpers |
176750d6 HMH |
942 | */ |
943 | ||
b21a15f6 HMH |
944 | struct attribute_set { |
945 | unsigned int members, max_members; | |
946 | struct attribute_group group; | |
176750d6 HMH |
947 | }; |
948 | ||
7252374a HMH |
949 | struct attribute_set_obj { |
950 | struct attribute_set s; | |
951 | struct attribute *a; | |
952 | } __attribute__((packed)); | |
953 | ||
954 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 955 | const char *name) |
7252374a HMH |
956 | { |
957 | struct attribute_set_obj *sobj; | |
958 | ||
959 | if (max_members == 0) | |
960 | return NULL; | |
961 | ||
962 | /* Allocates space for implicit NULL at the end too */ | |
963 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
964 | max_members * sizeof(struct attribute *), | |
965 | GFP_KERNEL); | |
966 | if (!sobj) | |
967 | return NULL; | |
968 | sobj->s.max_members = max_members; | |
969 | sobj->s.group.attrs = &sobj->a; | |
970 | sobj->s.group.name = name; | |
971 | ||
972 | return &sobj->s; | |
973 | } | |
974 | ||
f74a27d4 HMH |
975 | #define destroy_attr_set(_set) \ |
976 | kfree(_set); | |
977 | ||
7252374a | 978 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 979 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
980 | { |
981 | if (!s || !attr) | |
982 | return -EINVAL; | |
983 | ||
984 | if (s->members >= s->max_members) | |
985 | return -ENOMEM; | |
986 | ||
987 | s->group.attrs[s->members] = attr; | |
988 | s->members++; | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
35ff8b9f | 993 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
994 | struct attribute **attr, |
995 | unsigned int count) | |
996 | { | |
997 | int i, res; | |
998 | ||
999 | for (i = 0; i < count; i++) { | |
1000 | res = add_to_attr_set(s, attr[i]); | |
1001 | if (res) | |
1002 | return res; | |
1003 | } | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
35ff8b9f | 1008 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1009 | { |
1010 | sysfs_remove_group(kobj, &s->group); | |
1011 | destroy_attr_set(s); | |
1012 | } | |
1013 | ||
f74a27d4 HMH |
1014 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1015 | sysfs_create_group(_kobj, &_attr_set->group) | |
1016 | ||
7252374a HMH |
1017 | static int parse_strtoul(const char *buf, |
1018 | unsigned long max, unsigned long *value) | |
1019 | { | |
1020 | char *endp; | |
1021 | ||
e7d2860b AGR |
1022 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1023 | endp = skip_spaces(endp); | |
7252374a HMH |
1024 | if (*endp || *value > max) |
1025 | return -EINVAL; | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
d64c81c4 HMH |
1030 | static void tpacpi_disable_brightness_delay(void) |
1031 | { | |
1032 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
1033 | printk(TPACPI_NOTICE | |
1034 | "ACPI backlight control delay disabled\n"); | |
1035 | } | |
1036 | ||
b5972796 HMH |
1037 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
1038 | { | |
1039 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1040 | union acpi_object *obj; | |
1041 | int rc; | |
1042 | ||
1043 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
1044 | obj = (union acpi_object *)buffer.pointer; | |
1045 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
1046 | printk(TPACPI_ERR "Unknown _BCL data, " | |
1047 | "please report this to %s\n", TPACPI_MAIL); | |
1048 | rc = 0; | |
1049 | } else { | |
1050 | rc = obj->package.count; | |
1051 | } | |
1052 | } else { | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | kfree(buffer.pointer); | |
1057 | return rc; | |
1058 | } | |
1059 | ||
1060 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
1061 | u32 lvl, void *context, void **rv) | |
1062 | { | |
1063 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
1064 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
1065 | ||
1066 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
1067 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
1068 | BUG_ON(!rv || !*rv); | |
1069 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
1070 | return AE_CTRL_TERMINATE; | |
1071 | } else { | |
1072 | return AE_OK; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
1078 | */ | |
1079 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
1080 | { | |
1081 | int status; | |
1082 | int bcl_levels = 0; | |
1083 | void *bcl_ptr = &bcl_levels; | |
1084 | ||
1085 | if (!vid_handle) { | |
1086 | TPACPI_ACPIHANDLE_INIT(vid); | |
1087 | } | |
1088 | if (!vid_handle) | |
1089 | return 0; | |
1090 | ||
1091 | /* | |
1092 | * Search for a _BCL method, and execute it. This is safe on all | |
1093 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
1094 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
1095 | * about calling the _BCL method in an enabled video device, any | |
1096 | * will do for our purposes. | |
1097 | */ | |
1098 | ||
1099 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
2263576c | 1100 | tpacpi_acpi_walk_find_bcl, NULL, NULL, |
b5972796 HMH |
1101 | &bcl_ptr); |
1102 | ||
1103 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
1104 | tp_features.bright_acpimode = 1; | |
1105 | return (bcl_levels - 2); | |
1106 | } | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
19d337df JB |
1111 | static void printk_deprecated_attribute(const char * const what, |
1112 | const char * const details) | |
1113 | { | |
1114 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
1115 | printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " | |
1116 | "will be removed. %s\n", | |
1117 | what, details); | |
1118 | } | |
1119 | ||
1120 | /************************************************************************* | |
1121 | * rfkill and radio control support helpers | |
1122 | */ | |
1123 | ||
1124 | /* | |
1125 | * ThinkPad-ACPI firmware handling model: | |
1126 | * | |
1127 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1128 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1129 | * as expected. It overrides all radio state in firmware | |
1130 | * | |
1131 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1132 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1133 | * | |
1134 | * The only time there are shadow radio state changes, is when | |
1135 | * masked-off hotkeys are used. | |
1136 | */ | |
1137 | ||
1138 | /* | |
1139 | * Internal driver API for radio state: | |
1140 | * | |
1141 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1142 | * bool: true means radio blocked (off) | |
1143 | */ | |
1144 | enum tpacpi_rfkill_state { | |
1145 | TPACPI_RFK_RADIO_OFF = 0, | |
1146 | TPACPI_RFK_RADIO_ON | |
1147 | }; | |
1148 | ||
1149 | /* rfkill switches */ | |
1150 | enum tpacpi_rfk_id { | |
1151 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1152 | TPACPI_RFK_WWAN_SW_ID, | |
1153 | TPACPI_RFK_UWB_SW_ID, | |
1154 | TPACPI_RFK_SW_MAX | |
1155 | }; | |
1156 | ||
1157 | static const char *tpacpi_rfkill_names[] = { | |
1158 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1159 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1160 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1161 | [TPACPI_RFK_SW_MAX] = NULL | |
1162 | }; | |
1163 | ||
1164 | /* ThinkPad-ACPI rfkill subdriver */ | |
1165 | struct tpacpi_rfk { | |
1166 | struct rfkill *rfkill; | |
1167 | enum tpacpi_rfk_id id; | |
1168 | const struct tpacpi_rfk_ops *ops; | |
1169 | }; | |
1170 | ||
1171 | struct tpacpi_rfk_ops { | |
1172 | /* firmware interface */ | |
1173 | int (*get_status)(void); | |
1174 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1175 | }; | |
1176 | ||
1177 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1178 | ||
1179 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1180 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1181 | { | |
1182 | int status; | |
1183 | ||
1184 | if (!tp_rfk) | |
1185 | return -ENODEV; | |
1186 | ||
1187 | status = (tp_rfk->ops->get_status)(); | |
1188 | if (status < 0) | |
1189 | return status; | |
1190 | ||
1191 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1192 | (status == TPACPI_RFK_RADIO_OFF)); | |
1193 | ||
1194 | return status; | |
1195 | } | |
1196 | ||
1197 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1198 | static void tpacpi_rfk_update_swstate_all(void) | |
1199 | { | |
1200 | unsigned int i; | |
1201 | ||
1202 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1203 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1204 | } | |
1205 | ||
1206 | /* | |
1207 | * Sync the HW-blocking state of all rfkill switches, | |
1208 | * do notice it causes the rfkill core to schedule uevents | |
1209 | */ | |
1210 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1211 | { | |
1212 | unsigned int i; | |
1213 | struct tpacpi_rfk *tp_rfk; | |
1214 | ||
1215 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1216 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1217 | if (tp_rfk) { | |
1218 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1219 | blocked)) { | |
1220 | /* ignore -- we track sw block */ | |
1221 | } | |
1222 | } | |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* Call to get the WLSW state from the firmware */ | |
1227 | static int hotkey_get_wlsw(void); | |
1228 | ||
1229 | /* Call to query WLSW state and update all rfkill switches */ | |
1230 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1231 | { | |
1232 | int res = hotkey_get_wlsw(); | |
1233 | int hw_blocked; | |
1234 | ||
1235 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1236 | if (res < 0) | |
1237 | return false; | |
1238 | ||
1239 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1240 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1241 | ||
1242 | return hw_blocked; | |
1243 | } | |
1244 | ||
1245 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1246 | { | |
1247 | struct tpacpi_rfk *tp_rfk = data; | |
1248 | int res; | |
1249 | ||
1250 | dbg_printk(TPACPI_DBG_RFKILL, | |
1251 | "request to change radio state to %s\n", | |
1252 | blocked ? "blocked" : "unblocked"); | |
1253 | ||
1254 | /* try to set radio state */ | |
1255 | res = (tp_rfk->ops->set_status)(blocked ? | |
1256 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1257 | ||
1258 | /* and update the rfkill core with whatever the FW really did */ | |
1259 | tpacpi_rfk_update_swstate(tp_rfk); | |
1260 | ||
1261 | return (res < 0) ? res : 0; | |
1262 | } | |
1263 | ||
1264 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1265 | .set_block = tpacpi_rfk_hook_set_block, | |
1266 | }; | |
1267 | ||
1268 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1269 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1270 | const enum rfkill_type rfktype, |
1271 | const char *name, | |
19d337df | 1272 | const bool set_default) |
0e74dc26 | 1273 | { |
19d337df | 1274 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1275 | int res; |
06d5caf4 | 1276 | bool sw_state = false; |
5451a923 | 1277 | bool hw_state; |
06d5caf4 | 1278 | int sw_status; |
90d9d3c7 | 1279 | |
19d337df JB |
1280 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1281 | ||
19d337df JB |
1282 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1283 | if (atp_rfk) | |
1284 | atp_rfk->rfkill = rfkill_alloc(name, | |
1285 | &tpacpi_pdev->dev, | |
1286 | rfktype, | |
1287 | &tpacpi_rfk_rfkill_ops, | |
1288 | atp_rfk); | |
1289 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0e74dc26 HMH |
1290 | printk(TPACPI_ERR |
1291 | "failed to allocate memory for rfkill class\n"); | |
19d337df | 1292 | kfree(atp_rfk); |
0e74dc26 HMH |
1293 | return -ENOMEM; |
1294 | } | |
1295 | ||
19d337df JB |
1296 | atp_rfk->id = id; |
1297 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1298 | |
06d5caf4 AJ |
1299 | sw_status = (tp_rfkops->get_status)(); |
1300 | if (sw_status < 0) { | |
b3fa1329 AJ |
1301 | printk(TPACPI_ERR |
1302 | "failed to read initial state for %s, error %d\n", | |
06d5caf4 | 1303 | name, sw_status); |
b3fa1329 | 1304 | } else { |
06d5caf4 | 1305 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1306 | if (set_default) { |
1307 | /* try to keep the initial state, since we ask the | |
1308 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1309 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1310 | } |
1311 | } | |
5451a923 HMH |
1312 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1313 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1314 | |
1315 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 HMH |
1316 | if (res < 0) { |
1317 | printk(TPACPI_ERR | |
1318 | "failed to register %s rfkill switch: %d\n", | |
1319 | name, res); | |
19d337df JB |
1320 | rfkill_destroy(atp_rfk->rfkill); |
1321 | kfree(atp_rfk); | |
0e74dc26 HMH |
1322 | return res; |
1323 | } | |
1324 | ||
19d337df | 1325 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 HMH |
1326 | |
1327 | printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", | |
1328 | name, (sw_state || hw_state) ? "" : "un"); | |
0e74dc26 HMH |
1329 | return 0; |
1330 | } | |
1331 | ||
19d337df | 1332 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1333 | { |
19d337df JB |
1334 | struct tpacpi_rfk *tp_rfk; |
1335 | ||
1336 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1337 | ||
1338 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1339 | if (tp_rfk) { | |
1340 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1341 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1342 | tpacpi_rfkill_switches[id] = NULL; |
1343 | kfree(tp_rfk); | |
1344 | } | |
73a94d86 HMH |
1345 | } |
1346 | ||
1347 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1348 | { | |
1349 | printk_deprecated_attribute(what, | |
1350 | "Please switch to generic rfkill before year 2010"); | |
1351 | } | |
1352 | ||
19d337df JB |
1353 | /* sysfs <radio> enable ------------------------------------------------ */ |
1354 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1355 | struct device_attribute *attr, | |
1356 | char *buf) | |
1357 | { | |
1358 | int status; | |
1359 | ||
1360 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1361 | ||
1362 | /* This is in the ABI... */ | |
1363 | if (tpacpi_rfk_check_hwblock_state()) { | |
1364 | status = TPACPI_RFK_RADIO_OFF; | |
1365 | } else { | |
1366 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1367 | if (status < 0) | |
1368 | return status; | |
1369 | } | |
1370 | ||
1371 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1372 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1373 | } | |
1374 | ||
1375 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1376 | struct device_attribute *attr, | |
1377 | const char *buf, size_t count) | |
1378 | { | |
1379 | unsigned long t; | |
1380 | int res; | |
1381 | ||
1382 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1383 | ||
1384 | if (parse_strtoul(buf, 1, &t)) | |
1385 | return -EINVAL; | |
1386 | ||
1387 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1388 | ||
1389 | /* This is in the ABI... */ | |
1390 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1391 | return -EPERM; | |
1392 | ||
1393 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1394 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1395 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1396 | ||
1397 | return (res < 0) ? res : count; | |
1398 | } | |
1399 | ||
1400 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1401 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1402 | { |
19d337df | 1403 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1404 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1405 | else { |
1406 | int status; | |
1407 | ||
1408 | /* This is in the ABI... */ | |
1409 | if (tpacpi_rfk_check_hwblock_state()) { | |
1410 | status = TPACPI_RFK_RADIO_OFF; | |
1411 | } else { | |
1412 | status = tpacpi_rfk_update_swstate( | |
1413 | tpacpi_rfkill_switches[id]); | |
1414 | if (status < 0) | |
1415 | return status; | |
1416 | } | |
1417 | ||
887965e6 | 1418 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1419 | (status == TPACPI_RFK_RADIO_ON) ? |
1420 | "enabled" : "disabled"); | |
887965e6 | 1421 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1422 | } |
1423 | ||
887965e6 | 1424 | return 0; |
19d337df JB |
1425 | } |
1426 | ||
1427 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1428 | { | |
1429 | char *cmd; | |
1430 | int status = -1; | |
1431 | int res = 0; | |
1432 | ||
1433 | if (id >= TPACPI_RFK_SW_MAX) | |
1434 | return -ENODEV; | |
1435 | ||
1436 | while ((cmd = next_cmd(&buf))) { | |
1437 | if (strlencmp(cmd, "enable") == 0) | |
1438 | status = TPACPI_RFK_RADIO_ON; | |
1439 | else if (strlencmp(cmd, "disable") == 0) | |
1440 | status = TPACPI_RFK_RADIO_OFF; | |
1441 | else | |
1442 | return -EINVAL; | |
1443 | } | |
1444 | ||
1445 | if (status != -1) { | |
1446 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1447 | (status == TPACPI_RFK_RADIO_ON) ? | |
1448 | "enable" : "disable", | |
1449 | tpacpi_rfkill_names[id]); | |
1450 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1451 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1452 | } | |
1453 | ||
1454 | return res; | |
1455 | } | |
1456 | ||
56b6aeb0 | 1457 | /************************************************************************* |
b21a15f6 | 1458 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1459 | */ |
1460 | ||
b21a15f6 HMH |
1461 | /* interface_version --------------------------------------------------- */ |
1462 | static ssize_t tpacpi_driver_interface_version_show( | |
1463 | struct device_driver *drv, | |
1464 | char *buf) | |
1da177e4 | 1465 | { |
b21a15f6 HMH |
1466 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1467 | } | |
1468 | ||
1469 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1470 | tpacpi_driver_interface_version_show, NULL); | |
1471 | ||
1472 | /* debug_level --------------------------------------------------------- */ | |
1473 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1474 | char *buf) | |
1475 | { | |
1476 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1477 | } | |
1478 | ||
1479 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1480 | const char *buf, size_t count) | |
1481 | { | |
1482 | unsigned long t; | |
1483 | ||
1484 | if (parse_strtoul(buf, 0xffff, &t)) | |
1485 | return -EINVAL; | |
1486 | ||
1487 | dbg_level = t; | |
1488 | ||
1489 | return count; | |
1490 | } | |
1491 | ||
1492 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1493 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1494 | ||
1495 | /* version ------------------------------------------------------------- */ | |
1496 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1497 | char *buf) | |
1498 | { | |
35ff8b9f HMH |
1499 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1500 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1501 | } |
1502 | ||
1503 | static DRIVER_ATTR(version, S_IRUGO, | |
1504 | tpacpi_driver_version_show, NULL); | |
1505 | ||
1506 | /* --------------------------------------------------------------------- */ | |
1507 | ||
a73f3091 HMH |
1508 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1509 | ||
a73f3091 HMH |
1510 | /* wlsw_emulstate ------------------------------------------------------ */ |
1511 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1512 | char *buf) | |
1513 | { | |
1514 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1515 | } | |
1516 | ||
1517 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1518 | const char *buf, size_t count) | |
1519 | { | |
1520 | unsigned long t; | |
1521 | ||
1522 | if (parse_strtoul(buf, 1, &t)) | |
1523 | return -EINVAL; | |
1524 | ||
19d337df | 1525 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1526 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1527 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1528 | } | |
a73f3091 HMH |
1529 | |
1530 | return count; | |
1531 | } | |
1532 | ||
1533 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1534 | tpacpi_driver_wlsw_emulstate_show, | |
1535 | tpacpi_driver_wlsw_emulstate_store); | |
1536 | ||
1537 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1538 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1539 | struct device_driver *drv, | |
1540 | char *buf) | |
1541 | { | |
1542 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1543 | } | |
1544 | ||
1545 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1546 | struct device_driver *drv, | |
1547 | const char *buf, size_t count) | |
1548 | { | |
1549 | unsigned long t; | |
1550 | ||
1551 | if (parse_strtoul(buf, 1, &t)) | |
1552 | return -EINVAL; | |
1553 | ||
1554 | tpacpi_bluetooth_emulstate = !!t; | |
1555 | ||
1556 | return count; | |
1557 | } | |
1558 | ||
1559 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1560 | tpacpi_driver_bluetooth_emulstate_show, | |
1561 | tpacpi_driver_bluetooth_emulstate_store); | |
1562 | ||
1563 | /* wwan_emulstate ------------------------------------------------- */ | |
1564 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1565 | struct device_driver *drv, | |
1566 | char *buf) | |
1567 | { | |
1568 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1569 | } | |
1570 | ||
1571 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1572 | struct device_driver *drv, | |
1573 | const char *buf, size_t count) | |
1574 | { | |
1575 | unsigned long t; | |
1576 | ||
1577 | if (parse_strtoul(buf, 1, &t)) | |
1578 | return -EINVAL; | |
1579 | ||
1580 | tpacpi_wwan_emulstate = !!t; | |
1581 | ||
1582 | return count; | |
1583 | } | |
1584 | ||
1585 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1586 | tpacpi_driver_wwan_emulstate_show, | |
1587 | tpacpi_driver_wwan_emulstate_store); | |
1588 | ||
0045c0aa HMH |
1589 | /* uwb_emulstate ------------------------------------------------- */ |
1590 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1591 | struct device_driver *drv, | |
1592 | char *buf) | |
1593 | { | |
1594 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1595 | } | |
1596 | ||
1597 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1598 | struct device_driver *drv, | |
1599 | const char *buf, size_t count) | |
1600 | { | |
1601 | unsigned long t; | |
1602 | ||
1603 | if (parse_strtoul(buf, 1, &t)) | |
1604 | return -EINVAL; | |
1605 | ||
1606 | tpacpi_uwb_emulstate = !!t; | |
1607 | ||
1608 | return count; | |
1609 | } | |
1610 | ||
1611 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1612 | tpacpi_driver_uwb_emulstate_show, | |
1613 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1614 | #endif |
1615 | ||
1616 | /* --------------------------------------------------------------------- */ | |
1617 | ||
35ff8b9f | 1618 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1619 | &driver_attr_debug_level, &driver_attr_version, |
1620 | &driver_attr_interface_version, | |
1621 | }; | |
1622 | ||
1623 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1624 | { | |
1625 | int i, res; | |
1626 | ||
1627 | i = 0; | |
1628 | res = 0; | |
1629 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1630 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1631 | i++; | |
1632 | } | |
1633 | ||
a73f3091 HMH |
1634 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1635 | if (!res && dbg_wlswemul) | |
1636 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1637 | if (!res && dbg_bluetoothemul) | |
1638 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1639 | if (!res && dbg_wwanemul) | |
1640 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1641 | if (!res && dbg_uwbemul) |
1642 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1643 | #endif |
1644 | ||
b21a15f6 HMH |
1645 | return res; |
1646 | } | |
1647 | ||
1648 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1649 | { | |
1650 | int i; | |
1651 | ||
35ff8b9f | 1652 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1653 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1654 | |
1655 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1656 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1657 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1658 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1659 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1660 | #endif |
b21a15f6 HMH |
1661 | } |
1662 | ||
600a99fa HMH |
1663 | /************************************************************************* |
1664 | * Firmware Data | |
1665 | */ | |
1666 | ||
1667 | /* | |
1668 | * Table of recommended minimum BIOS versions | |
1669 | * | |
1670 | * Reasons for listing: | |
9ddc5b6f | 1671 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1672 | * bugs and bad ACPI behaviour on older versions |
1673 | * | |
1674 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1675 | * | |
1676 | * 3. BIOS with known reduced functionality in older versions | |
1677 | * | |
1678 | * We recommend the latest BIOS and EC version. | |
1679 | * We only support the latest BIOS and EC fw version as a rule. | |
1680 | * | |
1681 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1682 | * Information from users in ThinkWiki | |
e675abaf HMH |
1683 | * |
1684 | * WARNING: we use this table also to detect that the machine is | |
1685 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1686 | */ |
1687 | ||
1688 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1689 | { .vendor = (__v), \ | |
1690 | .bios = TPID(__id1, __id2), \ | |
1691 | .ec = TPACPI_MATCH_ANY, \ | |
1692 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1693 | | (__bv1) << 8 | (__bv2) } | |
1694 | ||
1695 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1696 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1697 | { .vendor = (__v), \ |
1698 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1699 | .ec = __eid, \ |
600a99fa HMH |
1700 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1701 | | (__bv1) << 8 | (__bv2) } | |
1702 | ||
1703 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1704 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1705 | ||
275014ae | 1706 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1707 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1708 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1709 | __bv1, __bv2, TPID(__id1, __id2), \ |
1710 | __ev1, __ev2), \ | |
1711 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1712 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1713 | __ev1, __ev2) | |
600a99fa | 1714 | |
275014ae | 1715 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1716 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1717 | __eid1, __eid2, __ev1, __ev2) \ | |
1718 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1719 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1720 | __ev1, __ev2), \ | |
1721 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1722 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1723 | __ev1, __ev2) | |
600a99fa HMH |
1724 | |
1725 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1726 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1727 | ||
1728 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1729 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1730 | __bv1, __bv2, TPID(__id1, __id2), \ |
1731 | __ev1, __ev2) | |
600a99fa HMH |
1732 | |
1733 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1734 | __eid1, __eid2, __ev1, __ev2) \ | |
1735 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1736 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1737 | __ev1, __ev2) | |
600a99fa HMH |
1738 | |
1739 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1740 | /* Numeric models ------------------ */ | |
1741 | /* FW MODEL BIOS VERS */ | |
1742 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1743 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1744 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1745 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1746 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1747 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1748 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1749 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1750 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1751 | ||
1752 | /* A-series ------------------------- */ | |
1753 | /* FW MODEL BIOS VERS EC VERS */ | |
1754 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1755 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1756 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1757 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1758 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1759 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1760 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1761 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1762 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1763 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1764 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1765 | ||
1766 | /* G-series ------------------------- */ | |
1767 | /* FW MODEL BIOS VERS */ | |
1768 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1769 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1770 | ||
1771 | /* R-series, T-series --------------- */ | |
1772 | /* FW MODEL BIOS VERS EC VERS */ | |
1773 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1774 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1775 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1776 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1777 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1778 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1779 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1780 | T40/p, T41/p, T42/p (1) */ | |
1781 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1782 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1783 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1784 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1785 | ||
1786 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1787 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1788 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1789 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1790 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1791 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1792 | ||
1793 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1794 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1795 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1796 | |
1797 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1798 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1799 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1800 | ||
1801 | /* X-series ------------------------- */ | |
1802 | /* FW MODEL BIOS VERS EC VERS */ | |
1803 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1804 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1805 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1806 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1807 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1808 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1809 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1810 | ||
90765c6a HMH |
1811 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1812 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1813 | |
1814 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1815 | /* (1) - older versions known to lack functionality */ | |
1816 | }; | |
1817 | ||
1818 | #undef TPV_QL1 | |
1819 | #undef TPV_QL0 | |
1820 | #undef TPV_QI2 | |
1821 | #undef TPV_QI1 | |
1822 | #undef TPV_QI0 | |
1823 | #undef TPV_Q_X | |
1824 | #undef TPV_Q | |
1825 | ||
1826 | static void __init tpacpi_check_outdated_fw(void) | |
1827 | { | |
1828 | unsigned long fwvers; | |
1829 | u16 ec_version, bios_version; | |
1830 | ||
1831 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1832 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1833 | ||
1834 | if (!fwvers) | |
1835 | return; | |
1836 | ||
1837 | bios_version = fwvers & 0xffffU; | |
1838 | ec_version = (fwvers >> 16) & 0xffffU; | |
1839 | ||
1840 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1841 | if ((bios_version > thinkpad_id.bios_release) || | |
1842 | (ec_version > thinkpad_id.ec_release && | |
1843 | ec_version != TPACPI_MATCH_ANY)) { | |
1844 | /* | |
1845 | * The changelogs would let us track down the exact | |
1846 | * reason, but it is just too much of a pain to track | |
1847 | * it. We only list BIOSes that are either really | |
1848 | * broken, or really stable to begin with, so it is | |
1849 | * best if the user upgrades the firmware anyway. | |
1850 | */ | |
1851 | printk(TPACPI_WARN | |
1852 | "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); | |
1853 | printk(TPACPI_WARN | |
1854 | "WARNING: This firmware may be missing critical bug " | |
1855 | "fixes and/or important features\n"); | |
1856 | } | |
1857 | } | |
1858 | ||
e675abaf HMH |
1859 | static bool __init tpacpi_is_fw_known(void) |
1860 | { | |
1861 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1862 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1863 | } | |
1864 | ||
b21a15f6 HMH |
1865 | /**************************************************************************** |
1866 | **************************************************************************** | |
1867 | * | |
1868 | * Subdrivers | |
1869 | * | |
1870 | **************************************************************************** | |
1871 | ****************************************************************************/ | |
1872 | ||
1873 | /************************************************************************* | |
1874 | * thinkpad-acpi init subdriver | |
1875 | */ | |
1876 | ||
1877 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1878 | { | |
e0c7dfe7 HMH |
1879 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1880 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1881 | |
e0c7dfe7 | 1882 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1883 | (thinkpad_id.bios_version_str) ? |
1884 | thinkpad_id.bios_version_str : "unknown", | |
1885 | (thinkpad_id.ec_version_str) ? | |
1886 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1887 | |
1888 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1889 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1890 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1891 | "IBM" : ((thinkpad_id.vendor == | |
1892 | PCI_VENDOR_ID_LENOVO) ? | |
1893 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1894 | thinkpad_id.model_str, |
1895 | (thinkpad_id.nummodel_str) ? | |
1896 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1897 | |
600a99fa | 1898 | tpacpi_check_outdated_fw(); |
1da177e4 LT |
1899 | return 0; |
1900 | } | |
1901 | ||
887965e6 | 1902 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1903 | { |
887965e6 AD |
1904 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1905 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1906 | return 0; | |
1da177e4 LT |
1907 | } |
1908 | ||
a5763f22 HMH |
1909 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1910 | .name = "driver", | |
1911 | .read = thinkpad_acpi_driver_read, | |
1912 | }; | |
1913 | ||
56b6aeb0 HMH |
1914 | /************************************************************************* |
1915 | * Hotkey subdriver | |
1916 | */ | |
1917 | ||
0d922e3b HMH |
1918 | /* |
1919 | * ThinkPad firmware event model | |
1920 | * | |
1921 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1922 | * notifications (which follow the ACPI standard), and a private event | |
1923 | * interface. | |
1924 | * | |
1925 | * The private event interface also issues events for the hotkeys. As | |
1926 | * the driver gained features, the event handling code ended up being | |
1927 | * built around the hotkey subdriver. This will need to be refactored | |
1928 | * to a more formal event API eventually. | |
1929 | * | |
1930 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1931 | * such as "brightness has changed", "volume has changed", depending on | |
1932 | * the ThinkPad model and how the firmware is operating. | |
1933 | * | |
1934 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1935 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1936 | * firmware model and version. | |
1937 | */ | |
1938 | ||
f74a27d4 HMH |
1939 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1940 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1941 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1942 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1943 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1944 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1945 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1946 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1947 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1948 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1949 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1950 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1951 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1952 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1953 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1954 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1955 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1956 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1957 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1958 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1959 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1960 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1961 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1962 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1963 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1964 | }; | |
1965 | ||
0d922e3b | 1966 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1967 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1968 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1969 | }; | |
1970 | ||
1971 | enum { /* Positions of some of the keys in hotkey masks */ | |
1972 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1973 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1974 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1975 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1976 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1977 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1978 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1979 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1980 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1981 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1982 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1983 | }; | |
1984 | ||
1985 | enum { /* NVRAM to ACPI HKEY group map */ | |
1986 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1987 | TP_ACPI_HKEY_ZOOM_MASK | | |
1988 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1989 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1990 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1991 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1992 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1993 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1994 | TP_ACPI_HKEY_MUTE_MASK, | |
1995 | }; | |
1996 | ||
1997 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1998 | struct tp_nvram_state { | |
1999 | u16 thinkpad_toggle:1; | |
2000 | u16 zoom_toggle:1; | |
2001 | u16 display_toggle:1; | |
2002 | u16 thinklight_toggle:1; | |
2003 | u16 hibernate_toggle:1; | |
2004 | u16 displayexp_toggle:1; | |
2005 | u16 display_state:1; | |
2006 | u16 brightness_toggle:1; | |
2007 | u16 volume_toggle:1; | |
2008 | u16 mute:1; | |
2009 | ||
2010 | u8 brightness_level; | |
2011 | u8 volume_level; | |
2012 | }; | |
2013 | ||
db25f16d | 2014 | /* kthread for the hotkey poller */ |
01e88f25 | 2015 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d HMH |
2016 | |
2017 | /* Acquired while the poller kthread is running, use to sync start/stop */ | |
01e88f25 | 2018 | static struct mutex hotkey_thread_mutex; |
db25f16d HMH |
2019 | |
2020 | /* | |
0d922e3b HMH |
2021 | * Acquire mutex to write poller control variables as an |
2022 | * atomic block. | |
2023 | * | |
2024 | * Increment hotkey_config_change when changing them if you | |
2025 | * want the kthread to forget old state. | |
db25f16d HMH |
2026 | * |
2027 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2028 | */ | |
01e88f25 HMH |
2029 | static struct mutex hotkey_thread_data_mutex; |
2030 | static unsigned int hotkey_config_change; | |
2031 | ||
db25f16d HMH |
2032 | /* |
2033 | * hotkey poller control variables | |
2034 | * | |
2035 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2036 | * |
2037 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2038 | * should be used only when the changes need to be taken as | |
2039 | * a block, OR when one needs to force the kthread to forget | |
2040 | * old state. | |
db25f16d HMH |
2041 | */ |
2042 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2043 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2044 | ||
2045 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2046 | do { \ | |
2047 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2048 | hotkey_config_change++; \ | |
2049 | } while (0); | |
2050 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2051 | mutex_unlock(&hotkey_thread_data_mutex); | |
2052 | ||
01e88f25 HMH |
2053 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2054 | ||
2055 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2056 | #define HOTKEY_CONFIG_CRITICAL_START |
2057 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2058 | |
2059 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2060 | ||
f74a27d4 HMH |
2061 | static struct mutex hotkey_mutex; |
2062 | ||
a713b4d7 HMH |
2063 | static enum { /* Reasons for waking up */ |
2064 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2065 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2066 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2067 | } hotkey_wakeup_reason; | |
2068 | ||
2069 | static int hotkey_autosleep_ack; | |
2070 | ||
0d922e3b HMH |
2071 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2072 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2073 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2074 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2075 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2076 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2077 | |
b21a15f6 HMH |
2078 | static unsigned int hotkey_report_mode; |
2079 | ||
edf0e0e5 | 2080 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2081 | |
94954cc6 | 2082 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2083 | |
8b468c0c HMH |
2084 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2085 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2086 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2087 | |
6c231bd5 HMH |
2088 | /* HKEY.MHKG() return bits */ |
2089 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2090 | ||
19d337df | 2091 | static int hotkey_get_wlsw(void) |
74941a69 | 2092 | { |
19d337df JB |
2093 | int status; |
2094 | ||
2095 | if (!tp_features.hotkey_wlsw) | |
2096 | return -ENODEV; | |
2097 | ||
a73f3091 | 2098 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2099 | if (dbg_wlswemul) |
2100 | return (tpacpi_wlsw_emulstate) ? | |
2101 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2102 | #endif |
19d337df JB |
2103 | |
2104 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2105 | return -EIO; |
19d337df JB |
2106 | |
2107 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2108 | } |
2109 | ||
6c231bd5 HMH |
2110 | static int hotkey_get_tablet_mode(int *status) |
2111 | { | |
2112 | int s; | |
2113 | ||
2114 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2115 | return -EIO; | |
2116 | ||
cee47f5a HMH |
2117 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2118 | return 0; | |
6c231bd5 HMH |
2119 | } |
2120 | ||
b2c985e7 | 2121 | /* |
0d922e3b HMH |
2122 | * Reads current event mask from firmware, and updates |
2123 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2124 | * from hotkey_user_mask that are unavailable to be | |
2125 | * delivered (shadow requirement of the userspace ABI). | |
2126 | * | |
b2c985e7 HMH |
2127 | * Call with hotkey_mutex held |
2128 | */ | |
2129 | static int hotkey_mask_get(void) | |
2130 | { | |
2131 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2132 | u32 m = 0; |
2133 | ||
01e88f25 | 2134 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2135 | return -EIO; |
0d922e3b HMH |
2136 | |
2137 | hotkey_acpi_mask = m; | |
2138 | } else { | |
2139 | /* no mask support doesn't mean no event support... */ | |
2140 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2141 | } |
0d922e3b HMH |
2142 | |
2143 | /* sync userspace-visible mask */ | |
2144 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2145 | |
2146 | return 0; | |
2147 | } | |
2148 | ||
0d922e3b HMH |
2149 | void static hotkey_mask_warn_incomplete_mask(void) |
2150 | { | |
2151 | /* log only what the user can fix... */ | |
2152 | const u32 wantedmask = hotkey_driver_mask & | |
2153 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2154 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2155 | ||
2156 | if (wantedmask) | |
2157 | printk(TPACPI_NOTICE | |
2158 | "required events 0x%08x not enabled!\n", | |
2159 | wantedmask); | |
2160 | } | |
2161 | ||
b2c985e7 | 2162 | /* |
0d922e3b HMH |
2163 | * Set the firmware mask when supported |
2164 | * | |
2165 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2166 | * | |
2167 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2168 | * | |
b2c985e7 HMH |
2169 | * Call with hotkey_mutex held |
2170 | */ | |
2171 | static int hotkey_mask_set(u32 mask) | |
2172 | { | |
2173 | int i; | |
2174 | int rc = 0; | |
2175 | ||
0d922e3b | 2176 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2177 | |
0d922e3b | 2178 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2179 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2180 | if (!acpi_evalf(hkey_handle, |
2181 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2182 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2183 | rc = -EIO; |
2184 | break; | |
b2c985e7 HMH |
2185 | } |
2186 | } | |
0d922e3b | 2187 | } |
b2c985e7 | 2188 | |
0d922e3b HMH |
2189 | /* |
2190 | * We *must* make an inconditional call to hotkey_mask_get to | |
2191 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2192 | * | |
2193 | * Take the opportunity to also log when we cannot _enable_ | |
2194 | * a given event. | |
2195 | */ | |
2196 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
2197 | printk(TPACPI_NOTICE | |
2198 | "asked for hotkey mask 0x%08x, but " | |
2199 | "firmware forced it to 0x%08x\n", | |
2200 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2201 | } |
2202 | ||
6b30eb7d HMH |
2203 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2204 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2205 | |
2206 | return rc; | |
2207 | } | |
2208 | ||
2209 | /* | |
2210 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2211 | * | |
2212 | * Call with hotkey_mutex held | |
2213 | */ | |
2214 | static int hotkey_user_mask_set(const u32 mask) | |
2215 | { | |
2216 | int rc; | |
2217 | ||
2218 | /* Give people a chance to notice they are doing something that | |
2219 | * is bound to go boom on their users sooner or later */ | |
2220 | if (!tp_warned.hotkey_mask_ff && | |
2221 | (mask == 0xffff || mask == 0xffffff || | |
2222 | mask == 0xffffffff)) { | |
2223 | tp_warned.hotkey_mask_ff = 1; | |
2224 | printk(TPACPI_NOTICE | |
2225 | "setting the hotkey mask to 0x%08x is likely " | |
2226 | "not the best way to go about it\n", mask); | |
2227 | printk(TPACPI_NOTICE | |
2228 | "please consider using the driver defaults, " | |
2229 | "and refer to up-to-date thinkpad-acpi " | |
2230 | "documentation\n"); | |
2231 | } | |
2232 | ||
2233 | /* Try to enable what the user asked for, plus whatever we need. | |
2234 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2235 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2236 | ||
2237 | /* Enable the available bits in hotkey_user_mask */ | |
2238 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2239 | ||
b2c985e7 HMH |
2240 | return rc; |
2241 | } | |
2242 | ||
8b468c0c HMH |
2243 | /* |
2244 | * Sets the driver hotkey mask. | |
2245 | * | |
2246 | * Can be called even if the hotkey subdriver is inactive | |
2247 | */ | |
2248 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2249 | { | |
2250 | int rc; | |
2251 | ||
2252 | /* Do the right thing if hotkey_init has not been called yet */ | |
2253 | if (!tp_features.hotkey) { | |
2254 | hotkey_driver_mask = mask; | |
2255 | return 0; | |
2256 | } | |
2257 | ||
2258 | mutex_lock(&hotkey_mutex); | |
2259 | ||
2260 | HOTKEY_CONFIG_CRITICAL_START | |
2261 | hotkey_driver_mask = mask; | |
b684a363 | 2262 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2263 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2264 | #endif |
8b468c0c HMH |
2265 | HOTKEY_CONFIG_CRITICAL_END |
2266 | ||
2267 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2268 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2269 | hotkey_poll_setup(true); |
2270 | ||
8b468c0c HMH |
2271 | mutex_unlock(&hotkey_mutex); |
2272 | ||
2273 | return rc; | |
2274 | } | |
2275 | ||
b2c985e7 HMH |
2276 | static int hotkey_status_get(int *status) |
2277 | { | |
2278 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2279 | return -EIO; | |
2280 | ||
2281 | return 0; | |
2282 | } | |
2283 | ||
2586d566 | 2284 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2285 | { |
2586d566 | 2286 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2287 | return -EIO; |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | ||
6c231bd5 | 2292 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2293 | { |
6c231bd5 | 2294 | int state; |
b3ec6f91 | 2295 | |
6c231bd5 HMH |
2296 | if (tp_features.hotkey_tablet && |
2297 | !hotkey_get_tablet_mode(&state)) { | |
2298 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2299 | |
6c231bd5 HMH |
2300 | input_report_switch(tpacpi_inputdev, |
2301 | SW_TABLET_MODE, !!state); | |
2302 | input_sync(tpacpi_inputdev); | |
2303 | ||
2304 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2305 | } | |
b3ec6f91 HMH |
2306 | } |
2307 | ||
0d922e3b HMH |
2308 | /* Do NOT call without validating scancode first */ |
2309 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2310 | { |
0d922e3b | 2311 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2312 | |
2313 | if (keycode != KEY_RESERVED) { | |
2314 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2315 | ||
2316 | input_report_key(tpacpi_inputdev, keycode, 1); | |
2317 | if (keycode == KEY_UNKNOWN) | |
2318 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2319 | scancode); | |
2320 | input_sync(tpacpi_inputdev); | |
2321 | ||
2322 | input_report_key(tpacpi_inputdev, keycode, 0); | |
2323 | if (keycode == KEY_UNKNOWN) | |
2324 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
2325 | scancode); | |
2326 | input_sync(tpacpi_inputdev); | |
2327 | ||
2328 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2329 | } | |
2330 | } | |
2331 | ||
0d922e3b HMH |
2332 | /* Do NOT call without validating scancode first */ |
2333 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2334 | { | |
8b468c0c | 2335 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2336 | if (hotkey_user_mask & (1 << scancode)) |
2337 | tpacpi_input_send_key(scancode); | |
2338 | } | |
2339 | ||
01e88f25 HMH |
2340 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2341 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2342 | ||
0d922e3b | 2343 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2344 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2345 | { | |
0d922e3b | 2346 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2347 | if (hotkey_report_mode < 2) { |
2348 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
67bcae6e | 2349 | 0x80, TP_HKEY_EV_HOTKEY_BASE + scancode); |
01e88f25 HMH |
2350 | } |
2351 | } | |
2352 | ||
0d922e3b | 2353 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2354 | { |
2355 | u8 d; | |
2356 | ||
2357 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2358 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2359 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2360 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2361 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2362 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2363 | } | |
2364 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2365 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2366 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2367 | } | |
2368 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2369 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2370 | n->displayexp_toggle = | |
2371 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2372 | } | |
2373 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2374 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2375 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2376 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2377 | n->brightness_toggle = | |
2378 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2379 | } | |
2380 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2381 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2382 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2383 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2384 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2385 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2386 | } | |
2387 | } | |
2388 | ||
0d922e3b HMH |
2389 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, |
2390 | struct tp_nvram_state *newn, | |
2391 | const u32 event_mask) | |
2392 | { | |
2393 | ||
01e88f25 | 2394 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ |
35ff8b9f | 2395 | do { \ |
0d922e3b | 2396 | if ((event_mask & (1 << __scancode)) && \ |
35ff8b9f | 2397 | oldn->__member != newn->__member) \ |
0d922e3b | 2398 | tpacpi_hotkey_send_key(__scancode); \ |
35ff8b9f | 2399 | } while (0) |
01e88f25 HMH |
2400 | |
2401 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
0d922e3b HMH |
2402 | do { \ |
2403 | if (event_mask & (1 << __scancode)) \ | |
2404 | tpacpi_hotkey_send_key(__scancode); \ | |
2405 | } while (0) | |
01e88f25 | 2406 | |
01e88f25 HMH |
2407 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2408 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2409 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2410 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2411 | ||
2412 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2413 | ||
2414 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2415 | ||
2416 | /* handle volume */ | |
2417 | if (oldn->volume_toggle != newn->volume_toggle) { | |
2418 | if (oldn->mute != newn->mute) { | |
2419 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2420 | } | |
2421 | if (oldn->volume_level > newn->volume_level) { | |
2422 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2423 | } else if (oldn->volume_level < newn->volume_level) { | |
2424 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2425 | } else if (oldn->mute == newn->mute) { | |
2426 | /* repeated key presses that didn't change state */ | |
2427 | if (newn->mute) { | |
2428 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
2429 | } else if (newn->volume_level != 0) { | |
2430 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2431 | } else { | |
2432 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2433 | } | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | /* handle brightness */ | |
2438 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
2439 | if (oldn->brightness_level < newn->brightness_level) { | |
2440 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2441 | } else if (oldn->brightness_level > newn->brightness_level) { | |
2442 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2443 | } else { | |
2444 | /* repeated key presses that didn't change state */ | |
2445 | if (newn->brightness_level != 0) { | |
2446 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2447 | } else { | |
2448 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2449 | } | |
2450 | } | |
2451 | } | |
01e88f25 HMH |
2452 | |
2453 | #undef TPACPI_COMPARE_KEY | |
2454 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2455 | } |
01e88f25 | 2456 | |
0d922e3b HMH |
2457 | /* |
2458 | * Polling driver | |
2459 | * | |
2460 | * We track all events in hotkey_source_mask all the time, since | |
2461 | * most of them are edge-based. We only issue those requested by | |
2462 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2463 | */ | |
01e88f25 HMH |
2464 | static int hotkey_kthread(void *data) |
2465 | { | |
2466 | struct tp_nvram_state s[2]; | |
0d922e3b | 2467 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2468 | unsigned int si, so; |
2469 | unsigned long t; | |
2470 | unsigned int change_detector, must_reset; | |
db25f16d | 2471 | unsigned int poll_freq; |
01e88f25 HMH |
2472 | |
2473 | mutex_lock(&hotkey_thread_mutex); | |
2474 | ||
2475 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
2476 | goto exit; | |
2477 | ||
2478 | set_freezable(); | |
2479 | ||
2480 | so = 0; | |
2481 | si = 1; | |
2482 | t = 0; | |
2483 | ||
2484 | /* Initial state for compares */ | |
2485 | mutex_lock(&hotkey_thread_data_mutex); | |
2486 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2487 | poll_mask = hotkey_source_mask; |
2488 | event_mask = hotkey_source_mask & | |
2489 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2490 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2491 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2492 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2493 | |
db25f16d HMH |
2494 | while (!kthread_should_stop()) { |
2495 | if (t == 0) { | |
2496 | if (likely(poll_freq)) | |
2497 | t = 1000/poll_freq; | |
2498 | else | |
2499 | t = 100; /* should never happen... */ | |
2500 | } | |
01e88f25 HMH |
2501 | t = msleep_interruptible(t); |
2502 | if (unlikely(kthread_should_stop())) | |
2503 | break; | |
2504 | must_reset = try_to_freeze(); | |
2505 | if (t > 0 && !must_reset) | |
2506 | continue; | |
2507 | ||
2508 | mutex_lock(&hotkey_thread_data_mutex); | |
2509 | if (must_reset || hotkey_config_change != change_detector) { | |
2510 | /* forget old state on thaw or config change */ | |
2511 | si = so; | |
2512 | t = 0; | |
2513 | change_detector = hotkey_config_change; | |
2514 | } | |
0d922e3b HMH |
2515 | poll_mask = hotkey_source_mask; |
2516 | event_mask = hotkey_source_mask & | |
2517 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2518 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2519 | mutex_unlock(&hotkey_thread_data_mutex); |
2520 | ||
0d922e3b HMH |
2521 | if (likely(poll_mask)) { |
2522 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2523 | if (likely(si != so)) { |
2524 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2525 | event_mask); |
01e88f25 HMH |
2526 | } |
2527 | } | |
2528 | ||
2529 | so = si; | |
2530 | si ^= 1; | |
2531 | } | |
2532 | ||
2533 | exit: | |
2534 | mutex_unlock(&hotkey_thread_mutex); | |
2535 | return 0; | |
2536 | } | |
2537 | ||
db25f16d | 2538 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2539 | static void hotkey_poll_stop_sync(void) |
2540 | { | |
2541 | if (tpacpi_hotkey_task) { | |
2542 | if (frozen(tpacpi_hotkey_task) || | |
2543 | freezing(tpacpi_hotkey_task)) | |
2544 | thaw_process(tpacpi_hotkey_task); | |
2545 | ||
2546 | kthread_stop(tpacpi_hotkey_task); | |
2547 | tpacpi_hotkey_task = NULL; | |
2548 | mutex_lock(&hotkey_thread_mutex); | |
2549 | /* at this point, the thread did exit */ | |
2550 | mutex_unlock(&hotkey_thread_mutex); | |
2551 | } | |
2552 | } | |
2553 | ||
2554 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2555 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2556 | { |
0d922e3b HMH |
2557 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2558 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2559 | |
0d922e3b HMH |
2560 | if (hotkey_poll_freq > 0 && |
2561 | (poll_driver_mask || | |
2562 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2563 | if (!tpacpi_hotkey_task) { |
2564 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2565 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2566 | if (IS_ERR(tpacpi_hotkey_task)) { |
2567 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
2568 | printk(TPACPI_ERR |
2569 | "could not create kernel thread " | |
01e88f25 HMH |
2570 | "for hotkey polling\n"); |
2571 | } | |
2572 | } | |
2573 | } else { | |
2574 | hotkey_poll_stop_sync(); | |
0d922e3b | 2575 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2576 | hotkey_poll_freq == 0) { |
35ff8b9f | 2577 | printk(TPACPI_NOTICE |
0d922e3b HMH |
2578 | "hot keys 0x%08x and/or events 0x%08x " |
2579 | "require polling, which is currently " | |
2580 | "disabled\n", | |
2581 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2582 | } |
2583 | } | |
2584 | } | |
2585 | ||
7f0cf712 | 2586 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2587 | { |
2588 | mutex_lock(&hotkey_mutex); | |
2589 | hotkey_poll_setup(may_warn); | |
2590 | mutex_unlock(&hotkey_mutex); | |
2591 | } | |
2592 | ||
db25f16d HMH |
2593 | /* call with hotkey_mutex held */ |
2594 | static void hotkey_poll_set_freq(unsigned int freq) | |
2595 | { | |
2596 | if (!freq) | |
2597 | hotkey_poll_stop_sync(); | |
2598 | ||
db25f16d | 2599 | hotkey_poll_freq = freq; |
db25f16d HMH |
2600 | } |
2601 | ||
1bc6b9cd HMH |
2602 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2603 | ||
7f0cf712 HMH |
2604 | static void hotkey_poll_setup(const bool __unused) |
2605 | { | |
2606 | } | |
2607 | ||
2608 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2609 | { |
2610 | } | |
2611 | ||
2612 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2613 | ||
01e88f25 HMH |
2614 | static int hotkey_inputdev_open(struct input_dev *dev) |
2615 | { | |
2616 | switch (tpacpi_lifecycle) { | |
2617 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2618 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2619 | hotkey_poll_setup_safe(false); |
01e88f25 | 2620 | return 0; |
b589ea4c HMH |
2621 | case TPACPI_LIFE_EXITING: |
2622 | return -EBUSY; | |
01e88f25 HMH |
2623 | } |
2624 | ||
2625 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2626 | BUG(); | |
2627 | return -EBUSY; | |
2628 | } | |
2629 | ||
2630 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2631 | { | |
2632 | /* disable hotkey polling when possible */ | |
b589ea4c | 2633 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2634 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2635 | hotkey_poll_setup_safe(false); |
01e88f25 | 2636 | } |
01e88f25 | 2637 | |
a0416420 HMH |
2638 | /* sysfs hotkey enable ------------------------------------------------- */ |
2639 | static ssize_t hotkey_enable_show(struct device *dev, | |
2640 | struct device_attribute *attr, | |
2641 | char *buf) | |
2642 | { | |
ae92bd17 | 2643 | int res, status; |
a0416420 | 2644 | |
2586d566 HMH |
2645 | printk_deprecated_attribute("hotkey_enable", |
2646 | "Hotkey reporting is always enabled"); | |
2647 | ||
b2c985e7 | 2648 | res = hotkey_status_get(&status); |
a0416420 HMH |
2649 | if (res) |
2650 | return res; | |
2651 | ||
2652 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2653 | } | |
2654 | ||
2655 | static ssize_t hotkey_enable_store(struct device *dev, | |
2656 | struct device_attribute *attr, | |
2657 | const char *buf, size_t count) | |
2658 | { | |
2659 | unsigned long t; | |
2586d566 HMH |
2660 | |
2661 | printk_deprecated_attribute("hotkey_enable", | |
2662 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2663 | |
2664 | if (parse_strtoul(buf, 1, &t)) | |
2665 | return -EINVAL; | |
2666 | ||
2586d566 HMH |
2667 | if (t == 0) |
2668 | return -EPERM; | |
a0416420 | 2669 | |
2586d566 | 2670 | return count; |
a0416420 HMH |
2671 | } |
2672 | ||
2673 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 2674 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2675 | hotkey_enable_show, hotkey_enable_store); |
2676 | ||
2677 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2678 | static ssize_t hotkey_mask_show(struct device *dev, | |
2679 | struct device_attribute *attr, | |
2680 | char *buf) | |
2681 | { | |
0d922e3b | 2682 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2683 | } |
2684 | ||
2685 | static ssize_t hotkey_mask_store(struct device *dev, | |
2686 | struct device_attribute *attr, | |
2687 | const char *buf, size_t count) | |
2688 | { | |
2689 | unsigned long t; | |
b2c985e7 | 2690 | int res; |
a0416420 | 2691 | |
ae92bd17 | 2692 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2693 | return -EINVAL; |
2694 | ||
7646ea88 | 2695 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2696 | return -ERESTARTSYS; |
2697 | ||
0d922e3b | 2698 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2699 | |
2700 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2701 | hotkey_poll_setup(true); |
01e88f25 HMH |
2702 | #endif |
2703 | ||
b2c985e7 | 2704 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2705 | |
56e2c200 HMH |
2706 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2707 | ||
a0416420 HMH |
2708 | return (res) ? res : count; |
2709 | } | |
2710 | ||
2711 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 2712 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
2713 | hotkey_mask_show, hotkey_mask_store); |
2714 | ||
2715 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2716 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2717 | struct device_attribute *attr, | |
2718 | char *buf) | |
2719 | { | |
2586d566 | 2720 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2721 | } |
2722 | ||
2723 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 2724 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
2725 | |
2726 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2727 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2728 | struct device_attribute *attr, | |
2729 | char *buf) | |
2730 | { | |
06777be6 HMH |
2731 | printk_deprecated_attribute("hotkey_bios_mask", |
2732 | "This attribute is useless."); | |
ae92bd17 | 2733 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2734 | } |
2735 | ||
2736 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 2737 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 2738 | |
9b010de5 HMH |
2739 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2740 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2741 | struct device_attribute *attr, | |
2742 | char *buf) | |
2743 | { | |
01e88f25 HMH |
2744 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2745 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2746 | } |
2747 | ||
2748 | static struct device_attribute dev_attr_hotkey_all_mask = | |
2749 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
2750 | ||
2751 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2752 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2753 | struct device_attribute *attr, | |
2754 | char *buf) | |
2755 | { | |
2756 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2757 | (hotkey_all_mask | hotkey_source_mask) |
2758 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2759 | } |
2760 | ||
2761 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
2762 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
2763 | hotkey_recommended_mask_show, NULL); | |
2764 | ||
01e88f25 HMH |
2765 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2766 | ||
2767 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2768 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2769 | struct device_attribute *attr, | |
2770 | char *buf) | |
2771 | { | |
2772 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2773 | } | |
2774 | ||
2775 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2776 | struct device_attribute *attr, | |
2777 | const char *buf, size_t count) | |
2778 | { | |
2779 | unsigned long t; | |
0d922e3b HMH |
2780 | u32 r_ev; |
2781 | int rc; | |
01e88f25 HMH |
2782 | |
2783 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2784 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2785 | return -EINVAL; | |
2786 | ||
7646ea88 | 2787 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2788 | return -ERESTARTSYS; |
2789 | ||
2790 | HOTKEY_CONFIG_CRITICAL_START | |
2791 | hotkey_source_mask = t; | |
2792 | HOTKEY_CONFIG_CRITICAL_END | |
2793 | ||
0d922e3b HMH |
2794 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2795 | ~hotkey_source_mask); | |
db25f16d | 2796 | hotkey_poll_setup(true); |
0d922e3b HMH |
2797 | |
2798 | /* check if events needed by the driver got disabled */ | |
2799 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2800 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2801 | |
2802 | mutex_unlock(&hotkey_mutex); | |
2803 | ||
0d922e3b HMH |
2804 | if (rc < 0) |
2805 | printk(TPACPI_ERR "hotkey_source_mask: failed to update the" | |
2806 | "firmware event mask!\n"); | |
2807 | ||
2808 | if (r_ev) | |
2809 | printk(TPACPI_NOTICE "hotkey_source_mask: " | |
2810 | "some important events were disabled: " | |
2811 | "0x%04x\n", r_ev); | |
2812 | ||
56e2c200 HMH |
2813 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2814 | ||
0d922e3b | 2815 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2816 | } |
2817 | ||
2818 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2819 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2820 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2821 | ||
2822 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2823 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2824 | struct device_attribute *attr, | |
2825 | char *buf) | |
2826 | { | |
2827 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2828 | } | |
2829 | ||
2830 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2831 | struct device_attribute *attr, | |
2832 | const char *buf, size_t count) | |
2833 | { | |
2834 | unsigned long t; | |
2835 | ||
2836 | if (parse_strtoul(buf, 25, &t)) | |
2837 | return -EINVAL; | |
2838 | ||
7646ea88 | 2839 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2840 | return -ERESTARTSYS; |
2841 | ||
db25f16d HMH |
2842 | hotkey_poll_set_freq(t); |
2843 | hotkey_poll_setup(true); | |
01e88f25 | 2844 | |
01e88f25 HMH |
2845 | mutex_unlock(&hotkey_mutex); |
2846 | ||
56e2c200 HMH |
2847 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2848 | ||
01e88f25 HMH |
2849 | return count; |
2850 | } | |
2851 | ||
2852 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2853 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2854 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2855 | ||
2856 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2857 | ||
50ebec09 | 2858 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2859 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2860 | struct device_attribute *attr, | |
2861 | char *buf) | |
2862 | { | |
19d337df JB |
2863 | int res; |
2864 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2865 | if (res < 0) |
2866 | return res; | |
2867 | ||
19d337df JB |
2868 | /* Opportunistic update */ |
2869 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2870 | ||
2871 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2872 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2873 | } |
2874 | ||
2875 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2876 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2877 | ||
50ebec09 HMH |
2878 | static void hotkey_radio_sw_notify_change(void) |
2879 | { | |
2880 | if (tp_features.hotkey_wlsw) | |
2881 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2882 | "hotkey_radio_sw"); | |
2883 | } | |
2884 | ||
6c231bd5 HMH |
2885 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2886 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2887 | struct device_attribute *attr, | |
2888 | char *buf) | |
2889 | { | |
2890 | int res, s; | |
2891 | res = hotkey_get_tablet_mode(&s); | |
2892 | if (res < 0) | |
2893 | return res; | |
2894 | ||
2895 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2896 | } | |
2897 | ||
2898 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2899 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2900 | ||
2901 | static void hotkey_tablet_mode_notify_change(void) | |
2902 | { | |
2903 | if (tp_features.hotkey_tablet) | |
2904 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2905 | "hotkey_tablet_mode"); | |
2906 | } | |
2907 | ||
ff80f137 HMH |
2908 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2909 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2910 | struct device_attribute *attr, | |
2911 | char *buf) | |
2912 | { | |
2913 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2914 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2915 | } | |
2916 | ||
2917 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2918 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2919 | ||
50ebec09 | 2920 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2921 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2922 | struct device_attribute *attr, | |
2923 | char *buf) | |
2924 | { | |
2925 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2926 | } | |
2927 | ||
2928 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2929 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2930 | ||
1d5a2b54 | 2931 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2932 | { |
0d922e3b HMH |
2933 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2934 | "wakeup_reason"); | |
50ebec09 HMH |
2935 | } |
2936 | ||
2937 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2938 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2939 | struct device_attribute *attr, | |
2940 | char *buf) | |
2941 | { | |
2942 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2943 | } | |
2944 | ||
2945 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2946 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2947 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2948 | ||
1d5a2b54 | 2949 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2950 | { |
0d922e3b HMH |
2951 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2952 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2953 | } |
2954 | ||
a0416420 HMH |
2955 | /* --------------------------------------------------------------------- */ |
2956 | ||
ff80f137 HMH |
2957 | static struct attribute *hotkey_attributes[] __initdata = { |
2958 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2959 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2960 | &dev_attr_hotkey_bios_mask.attr, |
ff80f137 | 2961 | &dev_attr_hotkey_report_mode.attr, |
0d922e3b HMH |
2962 | &dev_attr_hotkey_wakeup_reason.attr, |
2963 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2964 | &dev_attr_hotkey_mask.attr, |
2965 | &dev_attr_hotkey_all_mask.attr, | |
2966 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2967 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2968 | &dev_attr_hotkey_source_mask.attr, |
2969 | &dev_attr_hotkey_poll_freq.attr, | |
2970 | #endif | |
ff80f137 HMH |
2971 | }; |
2972 | ||
19d337df JB |
2973 | /* |
2974 | * Sync both the hw and sw blocking state of all switches | |
2975 | */ | |
733e27c1 HMH |
2976 | static void tpacpi_send_radiosw_update(void) |
2977 | { | |
2978 | int wlsw; | |
2979 | ||
19d337df JB |
2980 | /* |
2981 | * We must sync all rfkill controllers *before* issuing any | |
2982 | * rfkill input events, or we will race the rfkill core input | |
2983 | * handler. | |
2984 | * | |
2985 | * tpacpi_inputdev_send_mutex works as a syncronization point | |
2986 | * for the above. | |
2987 | * | |
2988 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
2989 | */ | |
2990 | ||
2991 | wlsw = hotkey_get_wlsw(); | |
2992 | ||
2993 | /* Sync hw blocking state first if it is hw-blocked */ | |
2994 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
2995 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 2996 | |
19d337df JB |
2997 | /* Sync sw blocking state */ |
2998 | tpacpi_rfk_update_swstate_all(); | |
2999 | ||
3000 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3001 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3002 | tpacpi_rfk_update_hwblock_state(false); | |
3003 | ||
3004 | /* Issue rfkill input event for WLSW switch */ | |
3005 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3006 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3007 | ||
3008 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3009 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3010 | input_sync(tpacpi_inputdev); |
3011 | ||
3012 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3013 | } | |
19d337df JB |
3014 | |
3015 | /* | |
3016 | * this can be unconditional, as we will poll state again | |
3017 | * if userspace uses the notify to read data | |
3018 | */ | |
733e27c1 HMH |
3019 | hotkey_radio_sw_notify_change(); |
3020 | } | |
3021 | ||
9c0a76e1 HMH |
3022 | static void hotkey_exit(void) |
3023 | { | |
3024 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3025 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3026 | hotkey_poll_stop_sync(); |
db25f16d | 3027 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3028 | #endif |
3029 | ||
3030 | if (hotkey_dev_attributes) | |
3031 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3032 | ||
3033 | kfree(hotkey_keycode_map); | |
3034 | ||
4be73005 | 3035 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3036 | "restoring original HKEY status and mask\n"); |
3037 | /* yes, there is a bitwise or below, we want the | |
3038 | * functions to be called even if one of them fail */ | |
3039 | if (((tp_features.hotkey_mask && | |
3040 | hotkey_mask_set(hotkey_orig_mask)) | | |
3041 | hotkey_status_set(false)) != 0) | |
4be73005 HMH |
3042 | printk(TPACPI_ERR |
3043 | "failed to restore hot key mask " | |
3044 | "to BIOS defaults\n"); | |
9c0a76e1 HMH |
3045 | } |
3046 | ||
de4c8cc7 HMH |
3047 | static void __init hotkey_unmap(const unsigned int scancode) |
3048 | { | |
3049 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3050 | clear_bit(hotkey_keycode_map[scancode], | |
3051 | tpacpi_inputdev->keybit); | |
3052 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3053 | } | |
3054 | } | |
3055 | ||
0d922e3b HMH |
3056 | /* |
3057 | * HKEY quirks: | |
3058 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3059 | */ | |
3060 | ||
3061 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3062 | ||
3063 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3064 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3065 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3066 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3067 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3068 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3069 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3070 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3071 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3072 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3073 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3074 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3075 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3076 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3077 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3078 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3079 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3080 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3081 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3082 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3083 | }; | |
3084 | ||
a5763f22 | 3085 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3086 | { |
0f089147 HMH |
3087 | /* Requirements for changing the default keymaps: |
3088 | * | |
3089 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3090 | * good reasons. Do not change them unless you have deep | |
3091 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3092 | * the various ThinkPad models. The driver behaves | |
3093 | * differently for KEY_RESERVED: such keys have their | |
3094 | * hot key mask *unset* in mask_recommended, and also | |
3095 | * in the initial hot key mask programmed into the | |
3096 | * firmware at driver load time, which means the firm- | |
3097 | * ware may react very differently if you change them to | |
3098 | * something else; | |
3099 | * | |
3100 | * 2. You must be subscribed to the linux-thinkpad and | |
3101 | * ibm-acpi-devel mailing lists, and you should read the | |
3102 | * list archives since 2007 if you want to change the | |
3103 | * keymaps. This requirement exists so that you will | |
3104 | * know the past history of problems with the thinkpad- | |
3105 | * acpi driver keymaps, and also that you will be | |
3106 | * listening to any bug reports; | |
3107 | * | |
3108 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3109 | * for merging, *ever*. Send them to the linux-acpi | |
3110 | * mailinglist for comments. Merging is to be done only | |
3111 | * through acpi-test and the ACPI maintainer. | |
3112 | * | |
3113 | * If the above is too much to ask, don't change the keymap. | |
3114 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3115 | */ | |
edf0e0e5 HMH |
3116 | static u16 ibm_keycode_map[] __initdata = { |
3117 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3118 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
3119 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3120 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3121 | |
3122 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3123 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3124 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3125 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3126 | |
0d922e3b | 3127 | /* brightness: firmware always reacts to them */ |
e927c08d | 3128 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3129 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3130 | |
3131 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3132 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3133 | |
edf0e0e5 HMH |
3134 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3135 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3136 | |
3137 | /* Volume: firmware always react to it and reprograms | |
3138 | * the built-in *extra* mixer. Never map it to control | |
3139 | * another mixer by default. */ | |
e927c08d HMH |
3140 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3141 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3142 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3143 | |
edf0e0e5 | 3144 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3145 | |
edf0e0e5 HMH |
3146 | /* (assignments unknown, please report if found) */ |
3147 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3148 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3149 | }; | |
3150 | static u16 lenovo_keycode_map[] __initdata = { | |
3151 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
3152 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
3153 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
3154 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3155 | |
3156 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3157 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3158 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3159 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3160 | |
de4c8cc7 HMH |
3161 | /* These should be enabled --only-- when ACPI video |
3162 | * is disabled (i.e. in "vendor" mode), and are handled | |
3163 | * in a special way by the init code */ | |
3164 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3165 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3166 | |
edf0e0e5 | 3167 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3168 | |
edf0e0e5 HMH |
3169 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3170 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3171 | |
3172 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3173 | * react to it and reprograms the built-in *extra* mixer. | |
3174 | * Never map it to control another mixer by default. | |
3175 | * | |
3176 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3177 | * these over the regular keyboard, so these are no-ops, | |
3178 | * but there are still weird bugs re. MUTE, so do not | |
3179 | * change unless you get test reports from all Lenovo | |
3180 | * models. May cause the BIOS to interfere with the | |
3181 | * HDA mixer. | |
3182 | */ | |
e927c08d HMH |
3183 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3184 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3185 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3186 | |
edf0e0e5 | 3187 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3188 | |
edf0e0e5 HMH |
3189 | /* (assignments unknown, please report if found) */ |
3190 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3191 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3192 | }; | |
3193 | ||
3194 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
3195 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
3196 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
3197 | ||
6a38abbf | 3198 | int res, i; |
74941a69 | 3199 | int status; |
1b6521dc | 3200 | int hkeyv; |
d89a727a HMH |
3201 | bool radiosw_state = false; |
3202 | bool tabletsw_state = false; | |
b86c4722 | 3203 | |
0d922e3b HMH |
3204 | unsigned long quirks; |
3205 | ||
56e2c200 HMH |
3206 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3207 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3208 | |
6a38abbf | 3209 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3210 | BUG_ON(tpacpi_inputdev->open != NULL || |
3211 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3212 | |
e0c7dfe7 | 3213 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3214 | mutex_init(&hotkey_mutex); |
5fba344c | 3215 | |
01e88f25 HMH |
3216 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
3217 | mutex_init(&hotkey_thread_mutex); | |
3218 | mutex_init(&hotkey_thread_data_mutex); | |
3219 | #endif | |
3220 | ||
56b6aeb0 | 3221 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3222 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3223 | |
56e2c200 HMH |
3224 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3225 | "hotkeys are %s\n", | |
d8fd94d9 | 3226 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3227 | |
9c0a76e1 HMH |
3228 | if (!tp_features.hotkey) |
3229 | return 1; | |
a0416420 | 3230 | |
0d922e3b HMH |
3231 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3232 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3233 | ||
d64c81c4 HMH |
3234 | tpacpi_disable_brightness_delay(); |
3235 | ||
0d922e3b HMH |
3236 | /* MUST have enough space for all attributes to be added to |
3237 | * hotkey_dev_attributes */ | |
3238 | hotkey_dev_attributes = create_attr_set( | |
3239 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3240 | NULL); | |
9c0a76e1 HMH |
3241 | if (!hotkey_dev_attributes) |
3242 | return -ENOMEM; | |
3243 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3244 | hotkey_attributes, | |
3245 | ARRAY_SIZE(hotkey_attributes)); | |
3246 | if (res) | |
3247 | goto err_exit; | |
3248 | ||
0d922e3b | 3249 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3250 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3251 | for HKEY interface version 0x100 */ | |
3252 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3253 | if ((hkeyv >> 8) != 1) { | |
3254 | printk(TPACPI_ERR "unknown version of the " | |
3255 | "HKEY interface: 0x%x\n", hkeyv); | |
3256 | printk(TPACPI_ERR "please report this to %s\n", | |
3257 | TPACPI_MAIL); | |
3258 | } else { | |
3259 | /* | |
3260 | * MHKV 0x100 in A31, R40, R40e, | |
3261 | * T4x, X31, and later | |
3262 | */ | |
56e2c200 HMH |
3263 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3264 | "firmware HKEY interface version: 0x%x\n", | |
3265 | hkeyv); | |
0d922e3b HMH |
3266 | |
3267 | /* Paranoia check AND init hotkey_all_mask */ | |
3268 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3269 | "MHKA", "qd")) { | |
3270 | printk(TPACPI_ERR | |
3271 | "missing MHKA handler, " | |
3272 | "please report this to %s\n", | |
3273 | TPACPI_MAIL); | |
3274 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3275 | hotkey_all_mask = 0x080cU; | |
3276 | } else { | |
3277 | tp_features.hotkey_mask = 1; | |
3278 | } | |
1b6521dc | 3279 | } |
9c0a76e1 | 3280 | } |
56b6aeb0 | 3281 | |
56e2c200 HMH |
3282 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3283 | "hotkey masks are %s\n", | |
9c0a76e1 | 3284 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3285 | |
0d922e3b HMH |
3286 | /* Init hotkey_all_mask if not initialized yet */ |
3287 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3288 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3289 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3290 | |
0d922e3b | 3291 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3292 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3293 | /* hotkey_source_mask *must* be zero for |
3294 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3295 | res = hotkey_mask_get(); |
3296 | if (res) | |
3297 | goto err_exit; | |
3298 | ||
0d922e3b HMH |
3299 | hotkey_orig_mask = hotkey_acpi_mask; |
3300 | } else { | |
3301 | hotkey_orig_mask = hotkey_all_mask; | |
3302 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3303 | } |
74941a69 | 3304 | |
a73f3091 HMH |
3305 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3306 | if (dbg_wlswemul) { | |
3307 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3308 | radiosw_state = !!tpacpi_wlsw_emulstate; |
a73f3091 HMH |
3309 | printk(TPACPI_INFO |
3310 | "radio switch emulation enabled\n"); | |
3311 | } else | |
3312 | #endif | |
9c0a76e1 HMH |
3313 | /* Not all thinkpads have a hardware radio switch */ |
3314 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3315 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3316 | radiosw_state = !!status; |
9c0a76e1 HMH |
3317 | printk(TPACPI_INFO |
3318 | "radio switch found; radios are %s\n", | |
3319 | enabled(status, 0)); | |
3a872080 HMH |
3320 | } |
3321 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3322 | res = add_to_attr_set(hotkey_dev_attributes, |
3323 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3324 | |
9c0a76e1 HMH |
3325 | /* For X41t, X60t, X61t Tablets... */ |
3326 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3327 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3328 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
9c0a76e1 HMH |
3329 | printk(TPACPI_INFO |
3330 | "possible tablet mode switch found; " | |
3331 | "ThinkPad in %s mode\n", | |
d89a727a | 3332 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3333 | res = add_to_attr_set(hotkey_dev_attributes, |
3334 | &dev_attr_hotkey_tablet_mode.attr); | |
3335 | } | |
6c231bd5 | 3336 | |
9c0a76e1 HMH |
3337 | if (!res) |
3338 | res = register_attr_set_with_sysfs( | |
3339 | hotkey_dev_attributes, | |
3340 | &tpacpi_pdev->dev.kobj); | |
3341 | if (res) | |
3342 | goto err_exit; | |
6a38abbf | 3343 | |
9c0a76e1 | 3344 | /* Set up key map */ |
edf0e0e5 | 3345 | |
9c0a76e1 HMH |
3346 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3347 | GFP_KERNEL); | |
3348 | if (!hotkey_keycode_map) { | |
3349 | printk(TPACPI_ERR | |
3350 | "failed to allocate memory for key map\n"); | |
3351 | res = -ENOMEM; | |
3352 | goto err_exit; | |
3353 | } | |
edf0e0e5 | 3354 | |
9c0a76e1 | 3355 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
56e2c200 | 3356 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3357 | "using Lenovo default hot key map\n"); |
3358 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
3359 | TPACPI_HOTKEY_MAP_SIZE); | |
3360 | } else { | |
56e2c200 | 3361 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
9c0a76e1 HMH |
3362 | "using IBM default hot key map\n"); |
3363 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
3364 | TPACPI_HOTKEY_MAP_SIZE); | |
3365 | } | |
edf0e0e5 | 3366 | |
792979c8 | 3367 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3368 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3369 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3370 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3371 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3372 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3373 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3374 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3375 | } else { |
3376 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3377 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3378 | } |
9c0a76e1 | 3379 | } |
6a38abbf | 3380 | |
9c0a76e1 | 3381 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3382 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3383 | input_report_switch(tpacpi_inputdev, |
3384 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3385 | } |
3386 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3387 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3388 | input_report_switch(tpacpi_inputdev, |
3389 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3390 | } |
5c29d58f | 3391 | |
9c0a76e1 HMH |
3392 | /* Do not issue duplicate brightness change events to |
3393 | * userspace */ | |
3394 | if (!tp_features.bright_acpimode) | |
3395 | /* update bright_acpimode... */ | |
3396 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 3397 | |
8bf3d4c5 | 3398 | if (tp_features.bright_acpimode && acpi_video_backlight_support()) { |
9c0a76e1 HMH |
3399 | printk(TPACPI_INFO |
3400 | "This ThinkPad has standard ACPI backlight " | |
3401 | "brightness control, supported by the ACPI " | |
3402 | "video driver\n"); | |
3403 | printk(TPACPI_NOTICE | |
3404 | "Disabling thinkpad-acpi brightness events " | |
3405 | "by default...\n"); | |
3406 | ||
de4c8cc7 HMH |
3407 | /* Disable brightness up/down on Lenovo thinkpads when |
3408 | * ACPI is handling them, otherwise it is plain impossible | |
3409 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3410 | hotkey_reserved_mask |= |
3411 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3412 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3413 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3414 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3415 | } |
ff80f137 | 3416 | |
230d8cf2 | 3417 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3418 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3419 | & ~hotkey_all_mask | |
3420 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3421 | |
3422 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3423 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3424 | hotkey_source_mask, hotkey_poll_freq); | |
3425 | #endif | |
3426 | ||
56e2c200 HMH |
3427 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3428 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3429 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3430 | if (res) { |
3431 | hotkey_exit(); | |
3432 | return res; | |
3433 | } | |
0d922e3b HMH |
3434 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3435 | | hotkey_driver_mask) | |
3436 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3437 | if (res < 0 && res != -ENXIO) { |
3438 | hotkey_exit(); | |
3439 | return res; | |
3440 | } | |
0d922e3b HMH |
3441 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3442 | & ~hotkey_reserved_mask; | |
3443 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3444 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3445 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3446 | |
56e2c200 HMH |
3447 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3448 | "legacy ibm/hotkey event reporting over procfs %s\n", | |
9c0a76e1 HMH |
3449 | (hotkey_report_mode < 2) ? |
3450 | "enabled" : "disabled"); | |
01e88f25 | 3451 | |
9c0a76e1 HMH |
3452 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3453 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3454 | |
db25f16d | 3455 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3456 | |
9c0a76e1 | 3457 | return 0; |
01e88f25 | 3458 | |
9c0a76e1 HMH |
3459 | err_exit: |
3460 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3461 | hotkey_dev_attributes = NULL; | |
a0416420 | 3462 | |
9c0a76e1 | 3463 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
3464 | } |
3465 | ||
3827e7a3 HMH |
3466 | static bool hotkey_notify_hotkey(const u32 hkey, |
3467 | bool *send_acpi_ev, | |
3468 | bool *ignore_acpi_ev) | |
3469 | { | |
3470 | /* 0x1000-0x1FFF: key presses */ | |
3471 | unsigned int scancode = hkey & 0xfff; | |
3472 | *send_acpi_ev = true; | |
3473 | *ignore_acpi_ev = false; | |
3474 | ||
3475 | if (scancode > 0 && scancode < 0x21) { | |
3476 | scancode--; | |
3477 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3478 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3479 | *send_acpi_ev = false; |
3480 | } else { | |
3481 | *ignore_acpi_ev = true; | |
3482 | } | |
3483 | return true; | |
3484 | } | |
3485 | return false; | |
3486 | } | |
3487 | ||
3488 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3489 | bool *send_acpi_ev, | |
3490 | bool *ignore_acpi_ev) | |
3491 | { | |
3492 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3493 | *send_acpi_ev = true; | |
3494 | *ignore_acpi_ev = false; | |
3495 | ||
3496 | switch (hkey) { | |
67bcae6e HMH |
3497 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3498 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3499 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3500 | *ignore_acpi_ev = true; | |
3501 | break; | |
3502 | ||
67bcae6e HMH |
3503 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3504 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3505 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3506 | *ignore_acpi_ev = true; | |
3507 | break; | |
3508 | ||
67bcae6e HMH |
3509 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3510 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
106b4e66 HMH |
3511 | printk(TPACPI_ALERT |
3512 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
3513 | /* how to auto-heal: */ | |
3514 | /* 2313: woke up from S3, go to S4/S5 */ | |
3515 | /* 2413: woke up from S4, go to S5 */ | |
3516 | break; | |
3517 | ||
3827e7a3 HMH |
3518 | default: |
3519 | return false; | |
3520 | } | |
3521 | ||
3522 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
3523 | printk(TPACPI_INFO | |
3524 | "woke up due to a hot-unplug " | |
3525 | "request...\n"); | |
3526 | hotkey_wakeup_reason_notify_change(); | |
3527 | } | |
3528 | return true; | |
3529 | } | |
3530 | ||
3531 | static bool hotkey_notify_usrevent(const u32 hkey, | |
3532 | bool *send_acpi_ev, | |
3533 | bool *ignore_acpi_ev) | |
3534 | { | |
3535 | /* 0x5000-0x5FFF: human interface helpers */ | |
3536 | *send_acpi_ev = true; | |
3537 | *ignore_acpi_ev = false; | |
3538 | ||
3539 | switch (hkey) { | |
67bcae6e HMH |
3540 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3541 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3542 | return true; |
3543 | ||
67bcae6e HMH |
3544 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3545 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3546 | tpacpi_input_send_tabletsw(); |
3547 | hotkey_tablet_mode_notify_change(); | |
3548 | *send_acpi_ev = false; | |
3549 | return true; | |
3550 | ||
67bcae6e HMH |
3551 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3552 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3553 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3554 | /* do not propagate these events */ |
3827e7a3 HMH |
3555 | *ignore_acpi_ev = true; |
3556 | return true; | |
3557 | ||
3558 | default: | |
3559 | return false; | |
3560 | } | |
3561 | } | |
3562 | ||
9ebd9e83 HMH |
3563 | static void thermal_dump_all_sensors(void); |
3564 | ||
106b4e66 HMH |
3565 | static bool hotkey_notify_thermal(const u32 hkey, |
3566 | bool *send_acpi_ev, | |
3567 | bool *ignore_acpi_ev) | |
3568 | { | |
9ebd9e83 HMH |
3569 | bool known = true; |
3570 | ||
106b4e66 HMH |
3571 | /* 0x6000-0x6FFF: thermal alarms */ |
3572 | *send_acpi_ev = true; | |
3573 | *ignore_acpi_ev = false; | |
3574 | ||
3575 | switch (hkey) { | |
9ebd9e83 HMH |
3576 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
3577 | printk(TPACPI_INFO | |
3578 | "EC reports that Thermal Table has changed\n"); | |
3579 | /* recommended action: do nothing, we don't have | |
3580 | * Lenovo ATM information */ | |
3581 | return true; | |
67bcae6e | 3582 | case TP_HKEY_EV_ALARM_BAT_HOT: |
106b4e66 HMH |
3583 | printk(TPACPI_CRIT |
3584 | "THERMAL ALARM: battery is too hot!\n"); | |
3585 | /* recommended action: warn user through gui */ | |
9ebd9e83 | 3586 | break; |
67bcae6e | 3587 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
106b4e66 HMH |
3588 | printk(TPACPI_ALERT |
3589 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
3590 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3591 | break; |
67bcae6e | 3592 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
106b4e66 HMH |
3593 | printk(TPACPI_CRIT |
3594 | "THERMAL ALARM: " | |
3595 | "a sensor reports something is too hot!\n"); | |
3596 | /* recommended action: warn user through gui, that */ | |
3597 | /* some internal component is too hot */ | |
9ebd9e83 | 3598 | break; |
67bcae6e | 3599 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
106b4e66 HMH |
3600 | printk(TPACPI_ALERT |
3601 | "THERMAL EMERGENCY: " | |
3602 | "a sensor reports something is extremely hot!\n"); | |
3603 | /* recommended action: immediate sleep/hibernate */ | |
9ebd9e83 | 3604 | break; |
106b4e66 HMH |
3605 | default: |
3606 | printk(TPACPI_ALERT | |
3607 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
9ebd9e83 | 3608 | known = false; |
106b4e66 | 3609 | } |
9ebd9e83 HMH |
3610 | |
3611 | thermal_dump_all_sensors(); | |
3612 | ||
3613 | return known; | |
106b4e66 HMH |
3614 | } |
3615 | ||
56b6aeb0 HMH |
3616 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3617 | { | |
6a38abbf | 3618 | u32 hkey; |
3827e7a3 HMH |
3619 | bool send_acpi_ev; |
3620 | bool ignore_acpi_ev; | |
3621 | bool known_ev; | |
3eea123d HMH |
3622 | |
3623 | if (event != 0x80) { | |
35ff8b9f HMH |
3624 | printk(TPACPI_ERR |
3625 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 3626 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3627 | acpi_bus_generate_netlink_event( |
3628 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3629 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3630 | event, 0); |
3eea123d HMH |
3631 | return; |
3632 | } | |
3633 | ||
3634 | while (1) { | |
3635 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 3636 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
3637 | return; |
3638 | } | |
3639 | ||
3640 | if (hkey == 0) { | |
3641 | /* queue empty */ | |
3642 | return; | |
3643 | } | |
3644 | ||
3827e7a3 HMH |
3645 | send_acpi_ev = true; |
3646 | ignore_acpi_ev = false; | |
56b6aeb0 | 3647 | |
ff80f137 HMH |
3648 | switch (hkey >> 12) { |
3649 | case 1: | |
3650 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3651 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3652 | &ignore_acpi_ev); | |
ff80f137 | 3653 | break; |
a713b4d7 | 3654 | case 2: |
3827e7a3 HMH |
3655 | /* 0x2000-0x2FFF: Wakeup reason */ |
3656 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3657 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3658 | break; |
3659 | case 3: | |
3827e7a3 | 3660 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
3661 | switch (hkey) { |
3662 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 HMH |
3663 | hotkey_autosleep_ack = 1; |
3664 | printk(TPACPI_INFO | |
3665 | "bay ejected\n"); | |
50ebec09 | 3666 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3667 | known_ev = true; |
bf8b29c8 HMH |
3668 | break; |
3669 | case TP_HKEY_EV_OPTDRV_EJ: | |
3670 | /* FIXME: kick libata if SATA link offline */ | |
3671 | known_ev = true; | |
3672 | break; | |
3673 | default: | |
3827e7a3 | 3674 | known_ev = false; |
a713b4d7 HMH |
3675 | } |
3676 | break; | |
3677 | case 4: | |
3827e7a3 | 3678 | /* 0x4000-0x4FFF: dock-related wakeups */ |
67bcae6e | 3679 | if (hkey == TP_HKEY_EV_UNDOCK_ACK) { |
a713b4d7 HMH |
3680 | hotkey_autosleep_ack = 1; |
3681 | printk(TPACPI_INFO | |
3682 | "undocked\n"); | |
50ebec09 | 3683 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3684 | known_ev = true; |
a713b4d7 | 3685 | } else { |
3827e7a3 | 3686 | known_ev = false; |
a713b4d7 HMH |
3687 | } |
3688 | break; | |
ff80f137 | 3689 | case 5: |
d1edb2b5 | 3690 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3691 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3692 | &ignore_acpi_ev); | |
ff80f137 | 3693 | break; |
106b4e66 HMH |
3694 | case 6: |
3695 | /* 0x6000-0x6FFF: thermal alarms */ | |
3696 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
3697 | &ignore_acpi_ev); | |
3698 | break; | |
ff80f137 HMH |
3699 | case 7: |
3700 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3701 | if (tp_features.hotkey_wlsw && |
3702 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3703 | tpacpi_send_radiosw_update(); |
3b64b51d | 3704 | send_acpi_ev = 0; |
3827e7a3 | 3705 | known_ev = true; |
6a38abbf | 3706 | break; |
6a38abbf | 3707 | } |
ff80f137 HMH |
3708 | /* fallthrough to default */ |
3709 | default: | |
3827e7a3 | 3710 | known_ev = false; |
3b64b51d | 3711 | } |
3827e7a3 | 3712 | if (!known_ev) { |
35ff8b9f HMH |
3713 | printk(TPACPI_NOTICE |
3714 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
3715 | printk(TPACPI_NOTICE |
3716 | "please report the conditions when this " | |
3717 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3718 | } |
ff80f137 | 3719 | |
3eea123d | 3720 | /* Legacy events */ |
35ff8b9f HMH |
3721 | if (!ignore_acpi_ev && |
3722 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
3723 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
3724 | event, hkey); | |
3e5ce914 | 3725 | } |
ff80f137 | 3726 | |
3eea123d | 3727 | /* netlink events */ |
3e5ce914 | 3728 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3729 | acpi_bus_generate_netlink_event( |
3730 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3731 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3732 | event, hkey); |
3eea123d | 3733 | } |
56b6aeb0 HMH |
3734 | } |
3735 | } | |
3736 | ||
a713b4d7 HMH |
3737 | static void hotkey_suspend(pm_message_t state) |
3738 | { | |
3739 | /* Do these on suspend, we get the events on early resume! */ | |
3740 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3741 | hotkey_autosleep_ack = 0; | |
3742 | } | |
3743 | ||
5c29d58f HMH |
3744 | static void hotkey_resume(void) |
3745 | { | |
d64c81c4 HMH |
3746 | tpacpi_disable_brightness_delay(); |
3747 | ||
0d922e3b HMH |
3748 | if (hotkey_status_set(true) < 0 || |
3749 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
35ff8b9f | 3750 | printk(TPACPI_ERR |
0d922e3b HMH |
3751 | "error while attempting to reset the event " |
3752 | "firmware interface\n"); | |
3753 | ||
733e27c1 | 3754 | tpacpi_send_radiosw_update(); |
6c231bd5 | 3755 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
3756 | hotkey_wakeup_reason_notify_change(); |
3757 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 3758 | hotkey_poll_setup_safe(false); |
5c29d58f HMH |
3759 | } |
3760 | ||
a0416420 | 3761 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 3762 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 3763 | { |
ae92bd17 | 3764 | int res, status; |
1da177e4 | 3765 | |
d8fd94d9 | 3766 | if (!tp_features.hotkey) { |
887965e6 AD |
3767 | seq_printf(m, "status:\t\tnot supported\n"); |
3768 | return 0; | |
78f81cc4 BD |
3769 | } |
3770 | ||
7646ea88 | 3771 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3772 | return -ERESTARTSYS; |
b2c985e7 HMH |
3773 | res = hotkey_status_get(&status); |
3774 | if (!res) | |
3775 | res = hotkey_mask_get(); | |
40ca9fdf | 3776 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
3777 | if (res) |
3778 | return res; | |
1da177e4 | 3779 | |
887965e6 | 3780 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 3781 | if (hotkey_all_mask) { |
887965e6 AD |
3782 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
3783 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 3784 | } else { |
887965e6 AD |
3785 | seq_printf(m, "mask:\t\tnot supported\n"); |
3786 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
3787 | } |
3788 | ||
887965e6 | 3789 | return 0; |
1da177e4 LT |
3790 | } |
3791 | ||
406e988b | 3792 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
3793 | { |
3794 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b HMH |
3795 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
3796 | TPACPI_WARN | |
3797 | "hotkey enable/disable functionality has been " | |
3798 | "removed from the driver. Hotkeys are always " | |
3799 | "enabled\n")) | |
3800 | printk(TPACPI_ERR | |
3801 | "Please remove the hotkey=enable module " | |
3802 | "parameter, it is deprecated. Hotkeys are always " | |
3803 | "enabled\n"); | |
2586d566 HMH |
3804 | } |
3805 | ||
78f81cc4 | 3806 | static int hotkey_write(char *buf) |
1da177e4 | 3807 | { |
2586d566 | 3808 | int res; |
ae92bd17 | 3809 | u32 mask; |
1da177e4 | 3810 | char *cmd; |
1da177e4 | 3811 | |
d8fd94d9 | 3812 | if (!tp_features.hotkey) |
1da177e4 LT |
3813 | return -ENODEV; |
3814 | ||
7646ea88 | 3815 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 3816 | return -ERESTARTSYS; |
40ca9fdf | 3817 | |
0d922e3b | 3818 | mask = hotkey_user_mask; |
78f81cc4 | 3819 | |
40ca9fdf | 3820 | res = 0; |
1da177e4 LT |
3821 | while ((cmd = next_cmd(&buf))) { |
3822 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 3823 | hotkey_enabledisable_warn(1); |
1da177e4 | 3824 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 3825 | hotkey_enabledisable_warn(0); |
2586d566 | 3826 | res = -EPERM; |
1da177e4 | 3827 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
3828 | mask = (hotkey_all_mask | hotkey_source_mask) |
3829 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
3830 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
3831 | /* mask set */ | |
3832 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
3833 | /* mask set */ | |
40ca9fdf HMH |
3834 | } else { |
3835 | res = -EINVAL; | |
3836 | goto errexit; | |
3837 | } | |
1da177e4 | 3838 | } |
56e2c200 | 3839 | |
0d922e3b | 3840 | if (!res) { |
56e2c200 HMH |
3841 | tpacpi_disclose_usertask("procfs hotkey", |
3842 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
3843 | res = hotkey_user_mask_set(mask); |
3844 | } | |
1da177e4 | 3845 | |
40ca9fdf HMH |
3846 | errexit: |
3847 | mutex_unlock(&hotkey_mutex); | |
3848 | return res; | |
78f81cc4 | 3849 | } |
1da177e4 | 3850 | |
1ba90e3a | 3851 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 3852 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
3853 | {"", 0}, |
3854 | }; | |
3855 | ||
8d376cd6 | 3856 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 3857 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
3858 | .notify = hotkey_notify, |
3859 | .handle = &hkey_handle, | |
3860 | .type = ACPI_DEVICE_NOTIFY, | |
3861 | }; | |
3862 | ||
a5763f22 HMH |
3863 | static struct ibm_struct hotkey_driver_data = { |
3864 | .name = "hotkey", | |
a5763f22 HMH |
3865 | .read = hotkey_read, |
3866 | .write = hotkey_write, | |
3867 | .exit = hotkey_exit, | |
5c29d58f | 3868 | .resume = hotkey_resume, |
a713b4d7 | 3869 | .suspend = hotkey_suspend, |
8d376cd6 | 3870 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
3871 | }; |
3872 | ||
56b6aeb0 HMH |
3873 | /************************************************************************* |
3874 | * Bluetooth subdriver | |
3875 | */ | |
1da177e4 | 3876 | |
f74a27d4 HMH |
3877 | enum { |
3878 | /* ACPI GBDC/SBDC bits */ | |
3879 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
3880 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 3881 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 3882 | 0 = disable, 1 = enable */ |
153f8220 HMH |
3883 | }; |
3884 | ||
3885 | enum { | |
3886 | /* ACPI \BLTH commands */ | |
3887 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
3888 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
3889 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
3890 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
3891 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
3892 | }; |
3893 | ||
bee4cd9b HMH |
3894 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
3895 | ||
19d337df | 3896 | static int bluetooth_get_status(void) |
07431ec8 HMH |
3897 | { |
3898 | int status; | |
3899 | ||
a73f3091 HMH |
3900 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3901 | if (dbg_bluetoothemul) | |
3902 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 3903 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
3904 | #endif |
3905 | ||
07431ec8 HMH |
3906 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3907 | return -EIO; | |
3908 | ||
0e74dc26 | 3909 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 3910 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
3911 | } |
3912 | ||
19d337df | 3913 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
3914 | { |
3915 | int status; | |
3916 | ||
bee4cd9b | 3917 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
3918 | "will attempt to %s bluetooth\n", |
3919 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 3920 | |
a73f3091 HMH |
3921 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3922 | if (dbg_bluetoothemul) { | |
19d337df | 3923 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
3924 | return 0; |
3925 | } | |
3926 | #endif | |
3927 | ||
19d337df | 3928 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
3929 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
3930 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
3931 | else | |
3932 | status = 0; | |
19d337df | 3933 | |
07431ec8 HMH |
3934 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3935 | return -EIO; | |
3936 | ||
3937 | return 0; | |
3938 | } | |
f74a27d4 | 3939 | |
d3a6ade4 HMH |
3940 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3941 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3942 | struct device_attribute *attr, | |
3943 | char *buf) | |
3944 | { | |
19d337df JB |
3945 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
3946 | attr, buf); | |
d3a6ade4 HMH |
3947 | } |
3948 | ||
3949 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3950 | struct device_attribute *attr, | |
3951 | const char *buf, size_t count) | |
3952 | { | |
19d337df JB |
3953 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
3954 | attr, buf, count); | |
d3a6ade4 HMH |
3955 | } |
3956 | ||
3957 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3958 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3959 | bluetooth_enable_show, bluetooth_enable_store); |
3960 | ||
3961 | /* --------------------------------------------------------------------- */ | |
3962 | ||
3963 | static struct attribute *bluetooth_attributes[] = { | |
3964 | &dev_attr_bluetooth_enable.attr, | |
3965 | NULL | |
3966 | }; | |
3967 | ||
3968 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3969 | .attrs = bluetooth_attributes, |
3970 | }; | |
3971 | ||
19d337df JB |
3972 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
3973 | .get_status = bluetooth_get_status, | |
3974 | .set_status = bluetooth_set_status, | |
3975 | }; | |
0e74dc26 | 3976 | |
90d9d3c7 HMH |
3977 | static void bluetooth_shutdown(void) |
3978 | { | |
3979 | /* Order firmware to save current state to NVRAM */ | |
3980 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
3981 | TP_ACPI_BLTH_SAVE_STATE)) | |
3982 | printk(TPACPI_NOTICE | |
3983 | "failed to save bluetooth state to NVRAM\n"); | |
bee4cd9b HMH |
3984 | else |
3985 | vdbg_printk(TPACPI_DBG_RFKILL, | |
3986 | "bluestooth state saved to NVRAM\n"); | |
90d9d3c7 HMH |
3987 | } |
3988 | ||
07431ec8 HMH |
3989 | static void bluetooth_exit(void) |
3990 | { | |
3991 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
3992 | &bluetooth_attr_group); | |
19d337df JB |
3993 | |
3994 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
3995 | ||
3996 | bluetooth_shutdown(); | |
07431ec8 HMH |
3997 | } |
3998 | ||
a5763f22 | 3999 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4000 | { |
d3a6ade4 | 4001 | int res; |
d6fdd1e9 HMH |
4002 | int status = 0; |
4003 | ||
bee4cd9b HMH |
4004 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4005 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4006 | |
e0c7dfe7 | 4007 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4008 | |
78f81cc4 BD |
4009 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4010 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4011 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4012 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4013 | ||
bee4cd9b HMH |
4014 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4015 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4016 | str_supported(tp_features.bluetooth), |
4017 | status); | |
4018 | ||
a73f3091 HMH |
4019 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4020 | if (dbg_bluetoothemul) { | |
4021 | tp_features.bluetooth = 1; | |
4022 | printk(TPACPI_INFO | |
4023 | "bluetooth switch emulation enabled\n"); | |
4024 | } else | |
4025 | #endif | |
3a872080 HMH |
4026 | if (tp_features.bluetooth && |
4027 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4028 | /* no bluetooth hardware present in system */ | |
4029 | tp_features.bluetooth = 0; | |
bee4cd9b | 4030 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4031 | "bluetooth hardware not installed\n"); |
4032 | } | |
4033 | ||
0e74dc26 HMH |
4034 | if (!tp_features.bluetooth) |
4035 | return 1; | |
4036 | ||
0e74dc26 | 4037 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4038 | &bluetooth_tprfk_ops, |
0e74dc26 | 4039 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4040 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4041 | true); |
4042 | if (res) | |
4043 | return res; | |
4044 | ||
4045 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4046 | &bluetooth_attr_group); | |
0e74dc26 | 4047 | if (res) { |
19d337df | 4048 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4049 | return res; |
d6fdd1e9 | 4050 | } |
fe08bc4b | 4051 | |
0e74dc26 | 4052 | return 0; |
1da177e4 LT |
4053 | } |
4054 | ||
d3a6ade4 | 4055 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4056 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4057 | { |
887965e6 | 4058 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4059 | } |
4060 | ||
78f81cc4 | 4061 | static int bluetooth_write(char *buf) |
1da177e4 | 4062 | { |
19d337df | 4063 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4064 | } |
4065 | ||
a5763f22 HMH |
4066 | static struct ibm_struct bluetooth_driver_data = { |
4067 | .name = "bluetooth", | |
4068 | .read = bluetooth_read, | |
4069 | .write = bluetooth_write, | |
d3a6ade4 | 4070 | .exit = bluetooth_exit, |
90d9d3c7 | 4071 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4072 | }; |
4073 | ||
56b6aeb0 HMH |
4074 | /************************************************************************* |
4075 | * Wan subdriver | |
4076 | */ | |
4077 | ||
f74a27d4 HMH |
4078 | enum { |
4079 | /* ACPI GWAN/SWAN bits */ | |
4080 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4081 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4082 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4083 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4084 | }; |
4085 | ||
bee4cd9b HMH |
4086 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4087 | ||
19d337df | 4088 | static int wan_get_status(void) |
07431ec8 HMH |
4089 | { |
4090 | int status; | |
4091 | ||
a73f3091 HMH |
4092 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4093 | if (dbg_wwanemul) | |
4094 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4095 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4096 | #endif |
4097 | ||
07431ec8 HMH |
4098 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4099 | return -EIO; | |
4100 | ||
0e74dc26 | 4101 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4102 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4103 | } |
4104 | ||
19d337df | 4105 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4106 | { |
4107 | int status; | |
4108 | ||
bee4cd9b | 4109 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4110 | "will attempt to %s wwan\n", |
4111 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4112 | |
a73f3091 HMH |
4113 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4114 | if (dbg_wwanemul) { | |
19d337df | 4115 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4116 | return 0; |
4117 | } | |
4118 | #endif | |
4119 | ||
19d337df | 4120 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4121 | status = TP_ACPI_WANCARD_RADIOSSW |
4122 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4123 | else | |
4124 | status = 0; | |
19d337df | 4125 | |
07431ec8 HMH |
4126 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4127 | return -EIO; | |
4128 | ||
4129 | return 0; | |
4130 | } | |
f74a27d4 | 4131 | |
d3a6ade4 HMH |
4132 | /* sysfs wan enable ---------------------------------------------------- */ |
4133 | static ssize_t wan_enable_show(struct device *dev, | |
4134 | struct device_attribute *attr, | |
4135 | char *buf) | |
4136 | { | |
19d337df JB |
4137 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4138 | attr, buf); | |
d3a6ade4 HMH |
4139 | } |
4140 | ||
4141 | static ssize_t wan_enable_store(struct device *dev, | |
4142 | struct device_attribute *attr, | |
4143 | const char *buf, size_t count) | |
4144 | { | |
19d337df JB |
4145 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4146 | attr, buf, count); | |
d3a6ade4 HMH |
4147 | } |
4148 | ||
4149 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 4150 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
4151 | wan_enable_show, wan_enable_store); |
4152 | ||
4153 | /* --------------------------------------------------------------------- */ | |
4154 | ||
4155 | static struct attribute *wan_attributes[] = { | |
4156 | &dev_attr_wan_enable.attr, | |
4157 | NULL | |
4158 | }; | |
4159 | ||
4160 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4161 | .attrs = wan_attributes, |
4162 | }; | |
4163 | ||
19d337df JB |
4164 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4165 | .get_status = wan_get_status, | |
4166 | .set_status = wan_set_status, | |
4167 | }; | |
0e74dc26 | 4168 | |
90d9d3c7 HMH |
4169 | static void wan_shutdown(void) |
4170 | { | |
4171 | /* Order firmware to save current state to NVRAM */ | |
4172 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4173 | TP_ACPI_WGSV_SAVE_STATE)) | |
4174 | printk(TPACPI_NOTICE | |
4175 | "failed to save WWAN state to NVRAM\n"); | |
bee4cd9b HMH |
4176 | else |
4177 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4178 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4179 | } |
4180 | ||
07431ec8 HMH |
4181 | static void wan_exit(void) |
4182 | { | |
4183 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4184 | &wan_attr_group); | |
19d337df JB |
4185 | |
4186 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4187 | ||
4188 | wan_shutdown(); | |
07431ec8 HMH |
4189 | } |
4190 | ||
a5763f22 | 4191 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4192 | { |
d3a6ade4 | 4193 | int res; |
d6fdd1e9 HMH |
4194 | int status = 0; |
4195 | ||
bee4cd9b HMH |
4196 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4197 | "initializing wan subdriver\n"); | |
fe08bc4b | 4198 | |
e0c7dfe7 | 4199 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4200 | |
d8fd94d9 | 4201 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4202 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4203 | ||
bee4cd9b HMH |
4204 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4205 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4206 | str_supported(tp_features.wan), |
4207 | status); | |
4208 | ||
a73f3091 HMH |
4209 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4210 | if (dbg_wwanemul) { | |
4211 | tp_features.wan = 1; | |
4212 | printk(TPACPI_INFO | |
4213 | "wwan switch emulation enabled\n"); | |
4214 | } else | |
4215 | #endif | |
3a872080 HMH |
4216 | if (tp_features.wan && |
4217 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4218 | /* no wan hardware present in system */ | |
4219 | tp_features.wan = 0; | |
bee4cd9b | 4220 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4221 | "wan hardware not installed\n"); |
4222 | } | |
4223 | ||
0e74dc26 HMH |
4224 | if (!tp_features.wan) |
4225 | return 1; | |
4226 | ||
0e74dc26 | 4227 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4228 | &wan_tprfk_ops, |
0e74dc26 | 4229 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4230 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4231 | true); |
4232 | if (res) | |
4233 | return res; | |
4234 | ||
4235 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4236 | &wan_attr_group); | |
4237 | ||
0e74dc26 | 4238 | if (res) { |
19d337df | 4239 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4240 | return res; |
d6fdd1e9 | 4241 | } |
fe08bc4b | 4242 | |
0e74dc26 | 4243 | return 0; |
42adb53c JF |
4244 | } |
4245 | ||
d3a6ade4 | 4246 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4247 | static int wan_read(struct seq_file *m) |
42adb53c | 4248 | { |
887965e6 | 4249 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4250 | } |
4251 | ||
4252 | static int wan_write(char *buf) | |
4253 | { | |
19d337df | 4254 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4255 | } |
4256 | ||
a5763f22 HMH |
4257 | static struct ibm_struct wan_driver_data = { |
4258 | .name = "wan", | |
4259 | .read = wan_read, | |
4260 | .write = wan_write, | |
d3a6ade4 | 4261 | .exit = wan_exit, |
90d9d3c7 | 4262 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4263 | }; |
4264 | ||
0045c0aa HMH |
4265 | /************************************************************************* |
4266 | * UWB subdriver | |
4267 | */ | |
4268 | ||
4269 | enum { | |
4270 | /* ACPI GUWB/SUWB bits */ | |
4271 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4272 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4273 | }; | |
4274 | ||
bee4cd9b HMH |
4275 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4276 | ||
19d337df | 4277 | static int uwb_get_status(void) |
0045c0aa HMH |
4278 | { |
4279 | int status; | |
4280 | ||
0045c0aa HMH |
4281 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4282 | if (dbg_uwbemul) | |
4283 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4284 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4285 | #endif |
4286 | ||
4287 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4288 | return -EIO; | |
4289 | ||
4290 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4291 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4292 | } |
4293 | ||
19d337df | 4294 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4295 | { |
4296 | int status; | |
4297 | ||
bee4cd9b | 4298 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4299 | "will attempt to %s UWB\n", |
4300 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4301 | |
0045c0aa HMH |
4302 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4303 | if (dbg_uwbemul) { | |
19d337df | 4304 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4305 | return 0; |
4306 | } | |
4307 | #endif | |
4308 | ||
19d337df JB |
4309 | if (state == TPACPI_RFK_RADIO_ON) |
4310 | status = TP_ACPI_UWB_RADIOSSW; | |
4311 | else | |
4312 | status = 0; | |
4313 | ||
0045c0aa HMH |
4314 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4315 | return -EIO; | |
4316 | ||
0045c0aa HMH |
4317 | return 0; |
4318 | } | |
4319 | ||
4320 | /* --------------------------------------------------------------------- */ | |
4321 | ||
19d337df JB |
4322 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4323 | .get_status = uwb_get_status, | |
4324 | .set_status = uwb_set_status, | |
4325 | }; | |
0045c0aa HMH |
4326 | |
4327 | static void uwb_exit(void) | |
4328 | { | |
19d337df | 4329 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4330 | } |
4331 | ||
4332 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4333 | { | |
4334 | int res; | |
4335 | int status = 0; | |
4336 | ||
bee4cd9b HMH |
4337 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4338 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4339 | |
4340 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4341 | ||
4342 | tp_features.uwb = hkey_handle && | |
4343 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4344 | ||
bee4cd9b HMH |
4345 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4346 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4347 | str_supported(tp_features.uwb), |
4348 | status); | |
4349 | ||
4350 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4351 | if (dbg_uwbemul) { | |
4352 | tp_features.uwb = 1; | |
4353 | printk(TPACPI_INFO | |
4354 | "uwb switch emulation enabled\n"); | |
4355 | } else | |
4356 | #endif | |
4357 | if (tp_features.uwb && | |
4358 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4359 | /* no uwb hardware present in system */ | |
4360 | tp_features.uwb = 0; | |
4361 | dbg_printk(TPACPI_DBG_INIT, | |
4362 | "uwb hardware not installed\n"); | |
4363 | } | |
4364 | ||
4365 | if (!tp_features.uwb) | |
4366 | return 1; | |
4367 | ||
4368 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4369 | &uwb_tprfk_ops, |
0045c0aa | 4370 | RFKILL_TYPE_UWB, |
bee4cd9b | 4371 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4372 | false); |
0045c0aa HMH |
4373 | return res; |
4374 | } | |
4375 | ||
4376 | static struct ibm_struct uwb_driver_data = { | |
4377 | .name = "uwb", | |
4378 | .exit = uwb_exit, | |
4379 | .flags.experimental = 1, | |
4380 | }; | |
4381 | ||
56b6aeb0 HMH |
4382 | /************************************************************************* |
4383 | * Video subdriver | |
4384 | */ | |
4385 | ||
d7c1d17d HMH |
4386 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4387 | ||
f74a27d4 HMH |
4388 | enum video_access_mode { |
4389 | TPACPI_VIDEO_NONE = 0, | |
4390 | TPACPI_VIDEO_570, /* 570 */ | |
4391 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4392 | TPACPI_VIDEO_NEW, /* all others */ | |
4393 | }; | |
4394 | ||
4395 | enum { /* video status flags, based on VIDEO_570 */ | |
4396 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4397 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4398 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4399 | }; | |
4400 | ||
4401 | enum { /* TPACPI_VIDEO_570 constants */ | |
4402 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4403 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4404 | * video_status_flags */ | |
4405 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4406 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4407 | }; | |
4408 | ||
9a8e1738 HMH |
4409 | static enum video_access_mode video_supported; |
4410 | static int video_orig_autosw; | |
78f81cc4 | 4411 | |
f74a27d4 HMH |
4412 | static int video_autosw_get(void); |
4413 | static int video_autosw_set(int enable); | |
4414 | ||
e0c7dfe7 | 4415 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4416 | |
a5763f22 | 4417 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4418 | { |
78f81cc4 BD |
4419 | int ivga; |
4420 | ||
fe08bc4b HMH |
4421 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4422 | ||
e0c7dfe7 HMH |
4423 | TPACPI_ACPIHANDLE_INIT(vid); |
4424 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4425 | |
78f81cc4 BD |
4426 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4427 | /* G41, assume IVGA doesn't change */ | |
4428 | vid_handle = vid2_handle; | |
4429 | ||
4430 | if (!vid_handle) | |
4431 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4432 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
4433 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
4434 | /* 570 */ | |
efa27145 | 4435 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
4436 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
4437 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4438 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4439 | else |
4440 | /* all others */ | |
efa27145 | 4441 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4442 | |
fe08bc4b HMH |
4443 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4444 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4445 | video_supported); | |
4446 | ||
5fba344c | 4447 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
4448 | } |
4449 | ||
56b6aeb0 HMH |
4450 | static void video_exit(void) |
4451 | { | |
83f34724 HMH |
4452 | dbg_printk(TPACPI_DBG_EXIT, |
4453 | "restoring original video autoswitch mode\n"); | |
4454 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 4455 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 4456 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4457 | } |
4458 | ||
83f34724 | 4459 | static int video_outputsw_get(void) |
1da177e4 LT |
4460 | { |
4461 | int status = 0; | |
4462 | int i; | |
4463 | ||
83f34724 HMH |
4464 | switch (video_supported) { |
4465 | case TPACPI_VIDEO_570: | |
4466 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4467 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4468 | return -EIO; | |
4469 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4470 | break; | |
4471 | case TPACPI_VIDEO_770: | |
4472 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4473 | return -EIO; | |
4474 | if (i) | |
4475 | status |= TP_ACPI_VIDEO_S_LCD; | |
4476 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4477 | return -EIO; | |
4478 | if (i) | |
4479 | status |= TP_ACPI_VIDEO_S_CRT; | |
4480 | break; | |
4481 | case TPACPI_VIDEO_NEW: | |
4482 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4483 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4484 | return -EIO; | |
4485 | if (i) | |
4486 | status |= TP_ACPI_VIDEO_S_CRT; | |
4487 | ||
4488 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4489 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4490 | return -EIO; | |
4491 | if (i) | |
4492 | status |= TP_ACPI_VIDEO_S_LCD; | |
4493 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4494 | return -EIO; | |
4495 | if (i) | |
4496 | status |= TP_ACPI_VIDEO_S_DVI; | |
4497 | break; | |
4498 | default: | |
4499 | return -ENOSYS; | |
78f81cc4 BD |
4500 | } |
4501 | ||
4502 | return status; | |
4503 | } | |
1da177e4 | 4504 | |
83f34724 | 4505 | static int video_outputsw_set(int status) |
78f81cc4 | 4506 | { |
83f34724 HMH |
4507 | int autosw; |
4508 | int res = 0; | |
4509 | ||
4510 | switch (video_supported) { | |
4511 | case TPACPI_VIDEO_570: | |
4512 | res = acpi_evalf(NULL, NULL, | |
4513 | "\\_SB.PHS2", "vdd", | |
4514 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4515 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4516 | break; | |
4517 | case TPACPI_VIDEO_770: | |
4518 | autosw = video_autosw_get(); | |
4519 | if (autosw < 0) | |
4520 | return autosw; | |
1da177e4 | 4521 | |
83f34724 HMH |
4522 | res = video_autosw_set(1); |
4523 | if (res) | |
4524 | return res; | |
4525 | res = acpi_evalf(vid_handle, NULL, | |
4526 | "ASWT", "vdd", status * 0x100, 0); | |
4527 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4528 | printk(TPACPI_ERR |
4529 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
4530 | return -EIO; |
4531 | } | |
4532 | break; | |
4533 | case TPACPI_VIDEO_NEW: | |
4534 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4535 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4536 | break; |
4537 | default: | |
4538 | return -ENOSYS; | |
4539 | } | |
1da177e4 | 4540 | |
83f34724 | 4541 | return (res)? 0 : -EIO; |
1da177e4 LT |
4542 | } |
4543 | ||
83f34724 | 4544 | static int video_autosw_get(void) |
78f81cc4 | 4545 | { |
83f34724 | 4546 | int autosw = 0; |
78f81cc4 | 4547 | |
83f34724 HMH |
4548 | switch (video_supported) { |
4549 | case TPACPI_VIDEO_570: | |
4550 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4551 | return -EIO; | |
4552 | break; | |
4553 | case TPACPI_VIDEO_770: | |
4554 | case TPACPI_VIDEO_NEW: | |
4555 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4556 | return -EIO; | |
4557 | break; | |
4558 | default: | |
4559 | return -ENOSYS; | |
4560 | } | |
78f81cc4 | 4561 | |
83f34724 | 4562 | return autosw & 1; |
78f81cc4 BD |
4563 | } |
4564 | ||
83f34724 | 4565 | static int video_autosw_set(int enable) |
78f81cc4 | 4566 | { |
83f34724 HMH |
4567 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
4568 | return -EIO; | |
4569 | return 0; | |
78f81cc4 BD |
4570 | } |
4571 | ||
83f34724 | 4572 | static int video_outputsw_cycle(void) |
78f81cc4 | 4573 | { |
83f34724 HMH |
4574 | int autosw = video_autosw_get(); |
4575 | int res; | |
78f81cc4 | 4576 | |
83f34724 HMH |
4577 | if (autosw < 0) |
4578 | return autosw; | |
78f81cc4 | 4579 | |
83f34724 HMH |
4580 | switch (video_supported) { |
4581 | case TPACPI_VIDEO_570: | |
4582 | res = video_autosw_set(1); | |
4583 | if (res) | |
4584 | return res; | |
4585 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4586 | break; | |
4587 | case TPACPI_VIDEO_770: | |
4588 | case TPACPI_VIDEO_NEW: | |
4589 | res = video_autosw_set(1); | |
4590 | if (res) | |
4591 | return res; | |
4592 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4593 | break; | |
4594 | default: | |
4595 | return -ENOSYS; | |
4596 | } | |
4597 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
4598 | printk(TPACPI_ERR |
4599 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 4600 | return -EIO; |
78f81cc4 BD |
4601 | } |
4602 | ||
83f34724 HMH |
4603 | return (res)? 0 : -EIO; |
4604 | } | |
4605 | ||
4606 | static int video_expand_toggle(void) | |
4607 | { | |
4608 | switch (video_supported) { | |
4609 | case TPACPI_VIDEO_570: | |
4610 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
4611 | 0 : -EIO; | |
4612 | case TPACPI_VIDEO_770: | |
4613 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
4614 | 0 : -EIO; | |
4615 | case TPACPI_VIDEO_NEW: | |
4616 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
4617 | 0 : -EIO; | |
4618 | default: | |
4619 | return -ENOSYS; | |
4620 | } | |
4621 | /* not reached */ | |
78f81cc4 BD |
4622 | } |
4623 | ||
887965e6 | 4624 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4625 | { |
83f34724 | 4626 | int status, autosw; |
56b6aeb0 | 4627 | |
83f34724 | 4628 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4629 | seq_printf(m, "status:\t\tnot supported\n"); |
4630 | return 0; | |
56b6aeb0 HMH |
4631 | } |
4632 | ||
b525c06c HMH |
4633 | /* Even reads can crash X.org, so... */ |
4634 | if (!capable(CAP_SYS_ADMIN)) | |
4635 | return -EPERM; | |
4636 | ||
83f34724 HMH |
4637 | status = video_outputsw_get(); |
4638 | if (status < 0) | |
4639 | return status; | |
4640 | ||
4641 | autosw = video_autosw_get(); | |
4642 | if (autosw < 0) | |
4643 | return autosw; | |
4644 | ||
887965e6 AD |
4645 | seq_printf(m, "status:\t\tsupported\n"); |
4646 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4647 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4648 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4649 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
4650 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4651 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
4652 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4653 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4654 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
4655 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
4656 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 4657 | |
887965e6 | 4658 | return 0; |
56b6aeb0 HMH |
4659 | } |
4660 | ||
78f81cc4 | 4661 | static int video_write(char *buf) |
1da177e4 LT |
4662 | { |
4663 | char *cmd; | |
4664 | int enable, disable, status; | |
83f34724 | 4665 | int res; |
1da177e4 | 4666 | |
83f34724 | 4667 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4668 | return -ENODEV; |
4669 | ||
b525c06c HMH |
4670 | /* Even reads can crash X.org, let alone writes... */ |
4671 | if (!capable(CAP_SYS_ADMIN)) | |
4672 | return -EPERM; | |
4673 | ||
83f34724 HMH |
4674 | enable = 0; |
4675 | disable = 0; | |
1da177e4 LT |
4676 | |
4677 | while ((cmd = next_cmd(&buf))) { | |
4678 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4679 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4680 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4681 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4682 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4683 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4684 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4685 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4686 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4687 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4688 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4689 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4690 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4691 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4692 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4693 | res = video_autosw_set(1); |
4694 | if (res) | |
4695 | return res; | |
1da177e4 | 4696 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4697 | res = video_autosw_set(0); |
4698 | if (res) | |
4699 | return res; | |
1da177e4 | 4700 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4701 | res = video_outputsw_cycle(); |
4702 | if (res) | |
4703 | return res; | |
1da177e4 | 4704 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4705 | res = video_expand_toggle(); |
4706 | if (res) | |
4707 | return res; | |
1da177e4 LT |
4708 | } else |
4709 | return -EINVAL; | |
4710 | } | |
4711 | ||
4712 | if (enable || disable) { | |
83f34724 HMH |
4713 | status = video_outputsw_get(); |
4714 | if (status < 0) | |
4715 | return status; | |
4716 | res = video_outputsw_set((status & ~disable) | enable); | |
4717 | if (res) | |
4718 | return res; | |
1da177e4 LT |
4719 | } |
4720 | ||
4721 | return 0; | |
4722 | } | |
4723 | ||
a5763f22 HMH |
4724 | static struct ibm_struct video_driver_data = { |
4725 | .name = "video", | |
4726 | .read = video_read, | |
4727 | .write = video_write, | |
4728 | .exit = video_exit, | |
4729 | }; | |
4730 | ||
d7c1d17d HMH |
4731 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4732 | ||
56b6aeb0 HMH |
4733 | /************************************************************************* |
4734 | * Light (thinklight) subdriver | |
4735 | */ | |
1da177e4 | 4736 | |
e0c7dfe7 HMH |
4737 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4738 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4739 | |
4fa6811b HMH |
4740 | static int light_get_status(void) |
4741 | { | |
4742 | int status = 0; | |
4743 | ||
4744 | if (tp_features.light_status) { | |
4745 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4746 | return -EIO; | |
4747 | return (!!status); | |
4748 | } | |
4749 | ||
4750 | return -ENXIO; | |
4751 | } | |
4752 | ||
4753 | static int light_set_status(int status) | |
4754 | { | |
4755 | int rc; | |
4756 | ||
4757 | if (tp_features.light) { | |
4758 | if (cmos_handle) { | |
4759 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4760 | (status)? | |
4761 | TP_CMOS_THINKLIGHT_ON : | |
4762 | TP_CMOS_THINKLIGHT_OFF); | |
4763 | } else { | |
4764 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4765 | (status)? 1 : 0); | |
4766 | } | |
4767 | return (rc)? 0 : -EIO; | |
4768 | } | |
4769 | ||
4770 | return -ENXIO; | |
4771 | } | |
4772 | ||
e306501d HMH |
4773 | static void light_set_status_worker(struct work_struct *work) |
4774 | { | |
4775 | struct tpacpi_led_classdev *data = | |
4776 | container_of(work, struct tpacpi_led_classdev, work); | |
4777 | ||
4778 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 4779 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
4780 | } |
4781 | ||
4782 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4783 | enum led_brightness brightness) | |
4784 | { | |
4785 | struct tpacpi_led_classdev *data = | |
4786 | container_of(led_cdev, | |
4787 | struct tpacpi_led_classdev, | |
4788 | led_classdev); | |
75bd3bf2 HMH |
4789 | data->new_state = (brightness != LED_OFF) ? |
4790 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 4791 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4792 | } |
4793 | ||
4794 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4795 | { | |
4796 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4797 | } | |
4798 | ||
4799 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4800 | .led_classdev = { | |
4801 | .name = "tpacpi::thinklight", | |
4802 | .brightness_set = &light_sysfs_set, | |
4803 | .brightness_get = &light_sysfs_get, | |
4804 | } | |
4805 | }; | |
4806 | ||
a5763f22 | 4807 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4808 | { |
9c0a76e1 | 4809 | int rc; |
e306501d | 4810 | |
fe08bc4b HMH |
4811 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4812 | ||
e0c7dfe7 HMH |
4813 | TPACPI_ACPIHANDLE_INIT(ledb); |
4814 | TPACPI_ACPIHANDLE_INIT(lght); | |
4815 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 4816 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4817 | |
78f81cc4 | 4818 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4819 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4820 | |
d8fd94d9 | 4821 | if (tp_features.light) |
78f81cc4 BD |
4822 | /* light status not supported on |
4823 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4824 | tp_features.light_status = |
4825 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4826 | |
9c0a76e1 HMH |
4827 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4828 | str_supported(tp_features.light), | |
4829 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4830 | |
9c0a76e1 HMH |
4831 | if (!tp_features.light) |
4832 | return 1; | |
4833 | ||
4834 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4835 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4836 | |
4837 | if (rc < 0) { | |
4838 | tp_features.light = 0; | |
4839 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4840 | } else { |
4841 | rc = 0; | |
e306501d | 4842 | } |
9c0a76e1 | 4843 | |
e306501d HMH |
4844 | return rc; |
4845 | } | |
4846 | ||
4847 | static void light_exit(void) | |
4848 | { | |
4849 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4850 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4851 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4852 | } |
4853 | ||
887965e6 | 4854 | static int light_read(struct seq_file *m) |
1da177e4 | 4855 | { |
4fa6811b | 4856 | int status; |
1da177e4 | 4857 | |
d8fd94d9 | 4858 | if (!tp_features.light) { |
887965e6 | 4859 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 4860 | } else if (!tp_features.light_status) { |
887965e6 AD |
4861 | seq_printf(m, "status:\t\tunknown\n"); |
4862 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4863 | } else { |
4fa6811b HMH |
4864 | status = light_get_status(); |
4865 | if (status < 0) | |
4866 | return status; | |
887965e6 AD |
4867 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
4868 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 4869 | } |
1da177e4 | 4870 | |
887965e6 | 4871 | return 0; |
1da177e4 LT |
4872 | } |
4873 | ||
78f81cc4 | 4874 | static int light_write(char *buf) |
1da177e4 | 4875 | { |
1da177e4 | 4876 | char *cmd; |
4fa6811b | 4877 | int newstatus = 0; |
78f81cc4 | 4878 | |
d8fd94d9 | 4879 | if (!tp_features.light) |
78f81cc4 BD |
4880 | return -ENODEV; |
4881 | ||
1da177e4 LT |
4882 | while ((cmd = next_cmd(&buf))) { |
4883 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4884 | newstatus = 1; |
1da177e4 | 4885 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4886 | newstatus = 0; |
1da177e4 LT |
4887 | } else |
4888 | return -EINVAL; | |
1da177e4 LT |
4889 | } |
4890 | ||
4fa6811b | 4891 | return light_set_status(newstatus); |
1da177e4 LT |
4892 | } |
4893 | ||
a5763f22 HMH |
4894 | static struct ibm_struct light_driver_data = { |
4895 | .name = "light", | |
4896 | .read = light_read, | |
4897 | .write = light_write, | |
e306501d | 4898 | .exit = light_exit, |
a5763f22 HMH |
4899 | }; |
4900 | ||
56b6aeb0 HMH |
4901 | /************************************************************************* |
4902 | * CMOS subdriver | |
4903 | */ | |
4904 | ||
b616004c HMH |
4905 | /* sysfs cmos_command -------------------------------------------------- */ |
4906 | static ssize_t cmos_command_store(struct device *dev, | |
4907 | struct device_attribute *attr, | |
4908 | const char *buf, size_t count) | |
4909 | { | |
4910 | unsigned long cmos_cmd; | |
4911 | int res; | |
4912 | ||
4913 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4914 | return -EINVAL; | |
4915 | ||
4916 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4917 | return (res)? res : count; | |
4918 | } | |
4919 | ||
4920 | static struct device_attribute dev_attr_cmos_command = | |
4921 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4922 | ||
4923 | /* --------------------------------------------------------------------- */ | |
4924 | ||
a5763f22 | 4925 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4926 | { |
b616004c HMH |
4927 | int res; |
4928 | ||
fe08bc4b HMH |
4929 | vdbg_printk(TPACPI_DBG_INIT, |
4930 | "initializing cmos commands subdriver\n"); | |
4931 | ||
e0c7dfe7 | 4932 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4933 | |
fe08bc4b HMH |
4934 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4935 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4936 | |
4937 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4938 | if (res) | |
4939 | return res; | |
4940 | ||
5fba344c HMH |
4941 | return (cmos_handle)? 0 : 1; |
4942 | } | |
4943 | ||
b616004c HMH |
4944 | static void cmos_exit(void) |
4945 | { | |
4946 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4947 | } | |
4948 | ||
887965e6 | 4949 | static int cmos_read(struct seq_file *m) |
1da177e4 | 4950 | { |
78f81cc4 BD |
4951 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4952 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 4953 | if (!cmos_handle) |
887965e6 | 4954 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 4955 | else { |
887965e6 AD |
4956 | seq_printf(m, "status:\t\tsupported\n"); |
4957 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
4958 | } |
4959 | ||
887965e6 | 4960 | return 0; |
1da177e4 LT |
4961 | } |
4962 | ||
78f81cc4 | 4963 | static int cmos_write(char *buf) |
1da177e4 LT |
4964 | { |
4965 | char *cmd; | |
c9bea99c | 4966 | int cmos_cmd, res; |
1da177e4 LT |
4967 | |
4968 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4969 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4970 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4971 | /* cmos_cmd set */ |
4972 | } else | |
4973 | return -EINVAL; | |
4974 | ||
c9bea99c HMH |
4975 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4976 | if (res) | |
4977 | return res; | |
1da177e4 LT |
4978 | } |
4979 | ||
4980 | return 0; | |
78f81cc4 BD |
4981 | } |
4982 | ||
a5763f22 HMH |
4983 | static struct ibm_struct cmos_driver_data = { |
4984 | .name = "cmos", | |
4985 | .read = cmos_read, | |
4986 | .write = cmos_write, | |
b616004c | 4987 | .exit = cmos_exit, |
a5763f22 | 4988 | }; |
56b6aeb0 HMH |
4989 | |
4990 | /************************************************************************* | |
4991 | * LED subdriver | |
4992 | */ | |
4993 | ||
f74a27d4 HMH |
4994 | enum led_access_mode { |
4995 | TPACPI_LED_NONE = 0, | |
4996 | TPACPI_LED_570, /* 570 */ | |
4997 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4998 | TPACPI_LED_NEW, /* all others */ | |
4999 | }; | |
5000 | ||
5001 | enum { /* For TPACPI_LED_OLD */ | |
5002 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5003 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5004 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5005 | }; | |
5006 | ||
9a8e1738 | 5007 | static enum led_access_mode led_supported; |
78f81cc4 | 5008 | |
e0c7dfe7 | 5009 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
5010 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
5011 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
5012 | "LED", /* all others */ |
5013 | ); /* R30, R31 */ | |
5014 | ||
f21179a4 | 5015 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5016 | static struct tpacpi_led_classdev *tpacpi_leds; |
5017 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5018 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5019 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5020 | "tpacpi::power", | |
5021 | "tpacpi:orange:batt", | |
5022 | "tpacpi:green:batt", | |
5023 | "tpacpi::dock_active", | |
5024 | "tpacpi::bay_active", | |
5025 | "tpacpi::dock_batt", | |
5026 | "tpacpi::unknown_led", | |
5027 | "tpacpi::standby", | |
f21179a4 HMH |
5028 | "tpacpi::dock_status1", |
5029 | "tpacpi::dock_status2", | |
5030 | "tpacpi::unknown_led2", | |
5031 | "tpacpi::unknown_led3", | |
5032 | "tpacpi::thinkvantage", | |
af116101 | 5033 | }; |
f21179a4 | 5034 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5035 | |
5036 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5037 | { | |
5038 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5039 | return false; | |
5040 | #else | |
f21179a4 | 5041 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5042 | #endif |
5043 | } | |
af116101 | 5044 | |
24e45bbe | 5045 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5046 | { |
5047 | int status; | |
af116101 | 5048 | enum led_status_t led_s; |
4fa6811b HMH |
5049 | |
5050 | switch (led_supported) { | |
5051 | case TPACPI_LED_570: | |
5052 | if (!acpi_evalf(ec_handle, | |
5053 | &status, "GLED", "dd", 1 << led)) | |
5054 | return -EIO; | |
af116101 | 5055 | led_s = (status == 0)? |
4fa6811b HMH |
5056 | TPACPI_LED_OFF : |
5057 | ((status == 1)? | |
5058 | TPACPI_LED_ON : | |
5059 | TPACPI_LED_BLINK); | |
af116101 HMH |
5060 | tpacpi_led_state_cache[led] = led_s; |
5061 | return led_s; | |
4fa6811b HMH |
5062 | default: |
5063 | return -ENXIO; | |
5064 | } | |
5065 | ||
5066 | /* not reached */ | |
5067 | } | |
5068 | ||
24e45bbe HMH |
5069 | static int led_set_status(const unsigned int led, |
5070 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5071 | { |
5072 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5073 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5074 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5075 | |
5076 | int rc = 0; | |
5077 | ||
5078 | switch (led_supported) { | |
5079 | case TPACPI_LED_570: | |
24e45bbe | 5080 | /* 570 */ |
a4d5effc | 5081 | if (unlikely(led > 7)) |
24e45bbe | 5082 | return -EINVAL; |
a4d5effc HMH |
5083 | if (unlikely(tpacpi_is_led_restricted(led))) |
5084 | return -EPERM; | |
24e45bbe HMH |
5085 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5086 | (1 << led), led_sled_arg1[ledstatus])) | |
5087 | rc = -EIO; | |
5088 | break; | |
4fa6811b | 5089 | case TPACPI_LED_OLD: |
24e45bbe | 5090 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5091 | if (unlikely(led > 7)) |
24e45bbe | 5092 | return -EINVAL; |
a4d5effc HMH |
5093 | if (unlikely(tpacpi_is_led_restricted(led))) |
5094 | return -EPERM; | |
24e45bbe HMH |
5095 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5096 | if (rc >= 0) | |
5097 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5098 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5099 | if (rc >= 0) | |
5100 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5101 | (ledstatus != TPACPI_LED_OFF) << led); | |
5102 | break; | |
4fa6811b | 5103 | case TPACPI_LED_NEW: |
24e45bbe | 5104 | /* all others */ |
a4d5effc HMH |
5105 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5106 | return -EINVAL; | |
5107 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5108 | return -EPERM; | |
24e45bbe HMH |
5109 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5110 | led, led_led_arg1[ledstatus])) | |
5111 | rc = -EIO; | |
5112 | break; | |
4fa6811b HMH |
5113 | default: |
5114 | rc = -ENXIO; | |
5115 | } | |
5116 | ||
af116101 HMH |
5117 | if (!rc) |
5118 | tpacpi_led_state_cache[led] = ledstatus; | |
5119 | ||
5120 | return rc; | |
5121 | } | |
5122 | ||
af116101 HMH |
5123 | static void led_set_status_worker(struct work_struct *work) |
5124 | { | |
5125 | struct tpacpi_led_classdev *data = | |
5126 | container_of(work, struct tpacpi_led_classdev, work); | |
5127 | ||
5128 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5129 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5130 | } |
5131 | ||
5132 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5133 | enum led_brightness brightness) | |
5134 | { | |
5135 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5136 | struct tpacpi_led_classdev, led_classdev); | |
5137 | ||
75bd3bf2 HMH |
5138 | if (brightness == LED_OFF) |
5139 | data->new_state = TPACPI_LED_OFF; | |
5140 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5141 | data->new_state = TPACPI_LED_ON; | |
5142 | else | |
5143 | data->new_state = TPACPI_LED_BLINK; | |
5144 | ||
e0e3c061 | 5145 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5146 | } |
5147 | ||
5148 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5149 | unsigned long *delay_on, unsigned long *delay_off) | |
5150 | { | |
5151 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5152 | struct tpacpi_led_classdev, led_classdev); | |
5153 | ||
5154 | /* Can we choose the flash rate? */ | |
5155 | if (*delay_on == 0 && *delay_off == 0) { | |
5156 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5157 | *delay_on = 500; /* ms */ | |
5158 | *delay_off = 500; /* ms */ | |
5159 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5160 | return -EINVAL; | |
5161 | ||
75bd3bf2 | 5162 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5163 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5164 | |
5165 | return 0; | |
5166 | } | |
5167 | ||
5168 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5169 | { | |
5170 | int rc; | |
5171 | ||
5172 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5173 | struct tpacpi_led_classdev, led_classdev); | |
5174 | ||
5175 | rc = led_get_status(data->led); | |
5176 | ||
5177 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5178 | rc = LED_OFF; /* no error handling in led class :( */ | |
5179 | else | |
5180 | rc = LED_FULL; | |
5181 | ||
4fa6811b HMH |
5182 | return rc; |
5183 | } | |
5184 | ||
af116101 HMH |
5185 | static void led_exit(void) |
5186 | { | |
5187 | unsigned int i; | |
5188 | ||
5189 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5190 | if (tpacpi_leds[i].led_classdev.name) | |
5191 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5192 | } | |
5193 | ||
5194 | kfree(tpacpi_leds); | |
af116101 HMH |
5195 | } |
5196 | ||
a4d5effc HMH |
5197 | static int __init tpacpi_init_led(unsigned int led) |
5198 | { | |
5199 | int rc; | |
5200 | ||
5201 | tpacpi_leds[led].led = led; | |
5202 | ||
f21179a4 HMH |
5203 | /* LEDs with no name don't get registered */ |
5204 | if (!tpacpi_led_names[led]) | |
5205 | return 0; | |
5206 | ||
a4d5effc HMH |
5207 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5208 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5209 | if (led_supported == TPACPI_LED_570) | |
5210 | tpacpi_leds[led].led_classdev.brightness_get = | |
5211 | &led_sysfs_get; | |
5212 | ||
5213 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5214 | ||
5215 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5216 | ||
5217 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5218 | &tpacpi_leds[led].led_classdev); | |
5219 | if (rc < 0) | |
5220 | tpacpi_leds[led].led_classdev.name = NULL; | |
5221 | ||
5222 | return rc; | |
5223 | } | |
5224 | ||
f21179a4 HMH |
5225 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5226 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5227 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5228 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5229 | ||
5230 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5231 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5232 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5233 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5234 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5235 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5236 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5237 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5238 | ||
5239 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5240 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5241 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5242 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5243 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5244 | ||
5245 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5246 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5247 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5248 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5249 | ||
5250 | /* (1) - may have excess leds enabled on MSB */ | |
5251 | ||
5252 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5253 | { /* Lenovo */ | |
5254 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5255 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5256 | .quirks = 0x1fffU, | |
5257 | }, | |
5258 | { /* IBM ThinkPads with no EC version string */ | |
5259 | .vendor = PCI_VENDOR_ID_IBM, | |
5260 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5261 | .quirks = 0x00ffU, | |
5262 | }, | |
5263 | { /* IBM ThinkPads with EC version string */ | |
5264 | .vendor = PCI_VENDOR_ID_IBM, | |
5265 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5266 | .quirks = 0x00bfU, | |
5267 | }, | |
5268 | }; | |
5269 | ||
5270 | #undef TPACPI_LEDQ_IBM | |
5271 | #undef TPACPI_LEDQ_LNV | |
5272 | ||
a5763f22 | 5273 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5274 | { |
af116101 HMH |
5275 | unsigned int i; |
5276 | int rc; | |
f21179a4 | 5277 | unsigned long useful_leds; |
af116101 | 5278 | |
fe08bc4b HMH |
5279 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5280 | ||
e0c7dfe7 | 5281 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 5282 | |
78f81cc4 BD |
5283 | if (!led_handle) |
5284 | /* led not supported on R30, R31 */ | |
efa27145 | 5285 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
5286 | else if (strlencmp(led_path, "SLED") == 0) |
5287 | /* 570 */ | |
efa27145 | 5288 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
5289 | else if (strlencmp(led_path, "SYSL") == 0) |
5290 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 5291 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
5292 | else |
5293 | /* all others */ | |
efa27145 | 5294 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 5295 | |
fe08bc4b HMH |
5296 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5297 | str_supported(led_supported), led_supported); | |
5298 | ||
f21179a4 HMH |
5299 | if (led_supported == TPACPI_LED_NONE) |
5300 | return 1; | |
5301 | ||
af116101 HMH |
5302 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5303 | GFP_KERNEL); | |
5304 | if (!tpacpi_leds) { | |
5305 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
5306 | return -ENOMEM; | |
5307 | } | |
5308 | ||
f21179a4 HMH |
5309 | useful_leds = tpacpi_check_quirks(led_useful_qtable, |
5310 | ARRAY_SIZE(led_useful_qtable)); | |
5311 | ||
af116101 | 5312 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
f21179a4 HMH |
5313 | if (!tpacpi_is_led_restricted(i) && |
5314 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5315 | rc = tpacpi_init_led(i); |
5316 | if (rc < 0) { | |
5317 | led_exit(); | |
5318 | return rc; | |
5319 | } | |
af116101 HMH |
5320 | } |
5321 | } | |
5322 | ||
a4d5effc | 5323 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
f21179a4 HMH |
5324 | printk(TPACPI_NOTICE |
5325 | "warning: userspace override of important " | |
5326 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5327 | #endif |
f21179a4 | 5328 | return 0; |
78f81cc4 BD |
5329 | } |
5330 | ||
4fa6811b HMH |
5331 | #define str_led_status(s) \ |
5332 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5333 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5334 | |
887965e6 | 5335 | static int led_read(struct seq_file *m) |
1da177e4 | 5336 | { |
78f81cc4 | 5337 | if (!led_supported) { |
887965e6 AD |
5338 | seq_printf(m, "status:\t\tnot supported\n"); |
5339 | return 0; | |
78f81cc4 | 5340 | } |
887965e6 | 5341 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5342 | |
efa27145 | 5343 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5344 | /* 570 */ |
5345 | int i, status; | |
5346 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5347 | status = led_get_status(i); |
5348 | if (status < 0) | |
78f81cc4 | 5349 | return -EIO; |
887965e6 | 5350 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5351 | i, str_led_status(status)); |
78f81cc4 BD |
5352 | } |
5353 | } | |
5354 | ||
887965e6 | 5355 | seq_printf(m, "commands:\t" |
f21179a4 | 5356 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5357 | |
887965e6 | 5358 | return 0; |
1da177e4 LT |
5359 | } |
5360 | ||
78f81cc4 | 5361 | static int led_write(char *buf) |
1da177e4 LT |
5362 | { |
5363 | char *cmd; | |
4fa6811b HMH |
5364 | int led, rc; |
5365 | enum led_status_t s; | |
78f81cc4 BD |
5366 | |
5367 | if (!led_supported) | |
5368 | return -ENODEV; | |
1da177e4 LT |
5369 | |
5370 | while ((cmd = next_cmd(&buf))) { | |
f21179a4 | 5371 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 15) |
1da177e4 LT |
5372 | return -EINVAL; |
5373 | ||
78f81cc4 | 5374 | if (strstr(cmd, "off")) { |
4fa6811b | 5375 | s = TPACPI_LED_OFF; |
1da177e4 | 5376 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5377 | s = TPACPI_LED_ON; |
78f81cc4 | 5378 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5379 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5380 | } else { |
4fa6811b | 5381 | return -EINVAL; |
78f81cc4 | 5382 | } |
4fa6811b HMH |
5383 | |
5384 | rc = led_set_status(led, s); | |
5385 | if (rc < 0) | |
5386 | return rc; | |
78f81cc4 BD |
5387 | } |
5388 | ||
5389 | return 0; | |
5390 | } | |
5391 | ||
a5763f22 HMH |
5392 | static struct ibm_struct led_driver_data = { |
5393 | .name = "led", | |
5394 | .read = led_read, | |
5395 | .write = led_write, | |
af116101 | 5396 | .exit = led_exit, |
a5763f22 HMH |
5397 | }; |
5398 | ||
56b6aeb0 HMH |
5399 | /************************************************************************* |
5400 | * Beep subdriver | |
5401 | */ | |
5402 | ||
e0c7dfe7 | 5403 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5404 | |
60201732 HMH |
5405 | #define TPACPI_BEEP_Q1 0x0001 |
5406 | ||
5407 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5408 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5409 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5410 | }; | |
5411 | ||
a5763f22 | 5412 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5413 | { |
60201732 HMH |
5414 | unsigned long quirks; |
5415 | ||
fe08bc4b HMH |
5416 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5417 | ||
e0c7dfe7 | 5418 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5419 | |
fe08bc4b HMH |
5420 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5421 | str_supported(beep_handle != NULL)); | |
5422 | ||
60201732 HMH |
5423 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5424 | ARRAY_SIZE(beep_quirk_table)); | |
5425 | ||
5426 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5427 | ||
5fba344c HMH |
5428 | return (beep_handle)? 0 : 1; |
5429 | } | |
5430 | ||
887965e6 | 5431 | static int beep_read(struct seq_file *m) |
78f81cc4 | 5432 | { |
78f81cc4 | 5433 | if (!beep_handle) |
887965e6 | 5434 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 5435 | else { |
887965e6 AD |
5436 | seq_printf(m, "status:\t\tsupported\n"); |
5437 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
5438 | } |
5439 | ||
887965e6 | 5440 | return 0; |
78f81cc4 BD |
5441 | } |
5442 | ||
5443 | static int beep_write(char *buf) | |
5444 | { | |
5445 | char *cmd; | |
5446 | int beep_cmd; | |
5447 | ||
5448 | if (!beep_handle) | |
5449 | return -ENODEV; | |
5450 | ||
5451 | while ((cmd = next_cmd(&buf))) { | |
5452 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5453 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5454 | /* beep_cmd set */ | |
5455 | } else | |
5456 | return -EINVAL; | |
60201732 HMH |
5457 | if (tp_features.beep_needs_two_args) { |
5458 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5459 | beep_cmd, 0)) | |
5460 | return -EIO; | |
5461 | } else { | |
5462 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5463 | beep_cmd)) | |
5464 | return -EIO; | |
5465 | } | |
78f81cc4 BD |
5466 | } |
5467 | ||
5468 | return 0; | |
5469 | } | |
5470 | ||
a5763f22 HMH |
5471 | static struct ibm_struct beep_driver_data = { |
5472 | .name = "beep", | |
5473 | .read = beep_read, | |
5474 | .write = beep_write, | |
5475 | }; | |
5476 | ||
56b6aeb0 HMH |
5477 | /************************************************************************* |
5478 | * Thermal subdriver | |
5479 | */ | |
78f81cc4 | 5480 | |
f74a27d4 HMH |
5481 | enum thermal_access_mode { |
5482 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5483 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5484 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5485 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5486 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5487 | }; | |
5488 | ||
5489 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5490 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5491 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5492 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5493 | |
5494 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5495 | }; |
5496 | ||
9ebd9e83 | 5497 | |
f74a27d4 HMH |
5498 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5499 | struct ibm_thermal_sensors_struct { | |
5500 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5501 | }; | |
5502 | ||
a26f878a | 5503 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5504 | |
b21a15f6 HMH |
5505 | /* idx is zero-based */ |
5506 | static int thermal_get_sensor(int idx, s32 *value) | |
5507 | { | |
5508 | int t; | |
5509 | s8 tmp; | |
5510 | char tmpi[5]; | |
5511 | ||
5512 | t = TP_EC_THERMAL_TMP0; | |
5513 | ||
5514 | switch (thermal_read_mode) { | |
5515 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5516 | case TPACPI_THERMAL_TPEC_16: | |
5517 | if (idx >= 8 && idx <= 15) { | |
5518 | t = TP_EC_THERMAL_TMP8; | |
5519 | idx -= 8; | |
5520 | } | |
5521 | /* fallthrough */ | |
5522 | #endif | |
5523 | case TPACPI_THERMAL_TPEC_8: | |
5524 | if (idx <= 7) { | |
5525 | if (!acpi_ec_read(t + idx, &tmp)) | |
5526 | return -EIO; | |
5527 | *value = tmp * 1000; | |
5528 | return 0; | |
5529 | } | |
5530 | break; | |
5531 | ||
5532 | case TPACPI_THERMAL_ACPI_UPDT: | |
5533 | if (idx <= 7) { | |
5534 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5535 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5536 | return -EIO; | |
5537 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5538 | return -EIO; | |
5539 | *value = (t - 2732) * 100; | |
5540 | return 0; | |
5541 | } | |
5542 | break; | |
5543 | ||
5544 | case TPACPI_THERMAL_ACPI_TMP07: | |
5545 | if (idx <= 7) { | |
5546 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5547 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5548 | return -EIO; | |
5549 | if (t > 127 || t < -127) | |
5550 | t = TP_EC_THERMAL_TMP_NA; | |
5551 | *value = t * 1000; | |
5552 | return 0; | |
5553 | } | |
5554 | break; | |
5555 | ||
5556 | case TPACPI_THERMAL_NONE: | |
5557 | default: | |
5558 | return -ENOSYS; | |
5559 | } | |
5560 | ||
5561 | return -EINVAL; | |
5562 | } | |
5563 | ||
5564 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5565 | { | |
5566 | int res, i; | |
5567 | int n; | |
5568 | ||
5569 | n = 8; | |
5570 | i = 0; | |
5571 | ||
5572 | if (!s) | |
5573 | return -EINVAL; | |
5574 | ||
5575 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5576 | n = 16; | |
5577 | ||
35ff8b9f | 5578 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5579 | res = thermal_get_sensor(i, &s->temp[i]); |
5580 | if (res) | |
5581 | return res; | |
5582 | } | |
5583 | ||
5584 | return n; | |
5585 | } | |
f74a27d4 | 5586 | |
9ebd9e83 HMH |
5587 | static void thermal_dump_all_sensors(void) |
5588 | { | |
5589 | int n, i; | |
5590 | struct ibm_thermal_sensors_struct t; | |
5591 | ||
5592 | n = thermal_get_sensors(&t); | |
5593 | if (n <= 0) | |
5594 | return; | |
5595 | ||
5596 | printk(TPACPI_NOTICE | |
5597 | "temperatures (Celsius):"); | |
5598 | ||
5599 | for (i = 0; i < n; i++) { | |
5600 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
5601 | printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); | |
5602 | else | |
5603 | printk(KERN_CONT " N/A"); | |
5604 | } | |
5605 | ||
5606 | printk(KERN_CONT "\n"); | |
5607 | } | |
5608 | ||
2c37aa4e HMH |
5609 | /* sysfs temp##_input -------------------------------------------------- */ |
5610 | ||
5611 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5612 | struct device_attribute *attr, | |
5613 | char *buf) | |
5614 | { | |
5615 | struct sensor_device_attribute *sensor_attr = | |
5616 | to_sensor_dev_attr(attr); | |
5617 | int idx = sensor_attr->index; | |
5618 | s32 value; | |
5619 | int res; | |
5620 | ||
5621 | res = thermal_get_sensor(idx, &value); | |
5622 | if (res) | |
5623 | return res; | |
9ebd9e83 | 5624 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5625 | return -ENXIO; |
5626 | ||
5627 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5628 | } | |
5629 | ||
5630 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5631 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5632 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5633 | |
5634 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5635 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5636 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5637 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5638 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5639 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5640 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5641 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5642 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5643 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5644 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5645 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5646 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5647 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5648 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5649 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5650 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5651 | }; | |
5652 | ||
5653 | #define THERMAL_ATTRS(X) \ | |
5654 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5655 | ||
5656 | static struct attribute *thermal_temp_input_attr[] = { | |
5657 | THERMAL_ATTRS(8), | |
5658 | THERMAL_ATTRS(9), | |
5659 | THERMAL_ATTRS(10), | |
5660 | THERMAL_ATTRS(11), | |
5661 | THERMAL_ATTRS(12), | |
5662 | THERMAL_ATTRS(13), | |
5663 | THERMAL_ATTRS(14), | |
5664 | THERMAL_ATTRS(15), | |
5665 | THERMAL_ATTRS(0), | |
5666 | THERMAL_ATTRS(1), | |
5667 | THERMAL_ATTRS(2), | |
5668 | THERMAL_ATTRS(3), | |
5669 | THERMAL_ATTRS(4), | |
5670 | THERMAL_ATTRS(5), | |
5671 | THERMAL_ATTRS(6), | |
5672 | THERMAL_ATTRS(7), | |
5673 | NULL | |
5674 | }; | |
5675 | ||
5676 | static const struct attribute_group thermal_temp_input16_group = { | |
5677 | .attrs = thermal_temp_input_attr | |
5678 | }; | |
5679 | ||
5680 | static const struct attribute_group thermal_temp_input8_group = { | |
5681 | .attrs = &thermal_temp_input_attr[8] | |
5682 | }; | |
5683 | ||
5684 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5685 | #undef THERMAL_ATTRS | |
5686 | ||
5687 | /* --------------------------------------------------------------------- */ | |
5688 | ||
a5763f22 | 5689 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5690 | { |
60eb0b35 HMH |
5691 | u8 t, ta1, ta2; |
5692 | int i; | |
5fba344c | 5693 | int acpi_tmp7; |
2c37aa4e | 5694 | int res; |
5fba344c | 5695 | |
fe08bc4b HMH |
5696 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5697 | ||
5fba344c | 5698 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5699 | |
3d6f99ca | 5700 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5701 | /* |
5702 | * Direct EC access mode: sensors at registers | |
5703 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5704 | * non-implemented, thermal sensors return 0x80 when | |
5705 | * not available | |
5706 | */ | |
78f81cc4 | 5707 | |
60eb0b35 HMH |
5708 | ta1 = ta2 = 0; |
5709 | for (i = 0; i < 8; i++) { | |
04cc862c | 5710 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5711 | ta1 |= t; |
5712 | } else { | |
5713 | ta1 = 0; | |
5714 | break; | |
5715 | } | |
04cc862c | 5716 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5717 | ta2 |= t; |
5718 | } else { | |
5719 | ta1 = 0; | |
5720 | break; | |
5721 | } | |
5722 | } | |
5723 | if (ta1 == 0) { | |
5724 | /* This is sheer paranoia, but we handle it anyway */ | |
5725 | if (acpi_tmp7) { | |
e0c7dfe7 | 5726 | printk(TPACPI_ERR |
60eb0b35 | 5727 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5728 | "falling back to ACPI TMPx access " |
5729 | "mode\n"); | |
efa27145 | 5730 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5731 | } else { |
e0c7dfe7 | 5732 | printk(TPACPI_ERR |
60eb0b35 HMH |
5733 | "ThinkPad ACPI EC access misbehaving, " |
5734 | "disabling thermal sensors access\n"); | |
efa27145 | 5735 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5736 | } |
5737 | } else { | |
5738 | thermal_read_mode = | |
5739 | (ta2 != 0) ? | |
efa27145 | 5740 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5741 | } |
5742 | } else if (acpi_tmp7) { | |
a26f878a HMH |
5743 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
5744 | /* 600e/x, 770e, 770x */ | |
efa27145 | 5745 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
5746 | } else { |
5747 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 5748 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5749 | } |
5750 | } else { | |
5751 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5752 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5753 | } |
78f81cc4 | 5754 | |
fe08bc4b HMH |
5755 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5756 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5757 | thermal_read_mode); | |
5758 | ||
35ff8b9f | 5759 | switch (thermal_read_mode) { |
2c37aa4e | 5760 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5761 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5762 | &thermal_temp_input16_group); |
5763 | if (res) | |
5764 | return res; | |
5765 | break; | |
5766 | case TPACPI_THERMAL_TPEC_8: | |
5767 | case TPACPI_THERMAL_ACPI_TMP07: | |
5768 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5769 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5770 | &thermal_temp_input8_group); |
5771 | if (res) | |
5772 | return res; | |
5773 | break; | |
5774 | case TPACPI_THERMAL_NONE: | |
5775 | default: | |
5776 | return 1; | |
5777 | } | |
5778 | ||
5779 | return 0; | |
5780 | } | |
5781 | ||
5782 | static void thermal_exit(void) | |
5783 | { | |
35ff8b9f | 5784 | switch (thermal_read_mode) { |
2c37aa4e | 5785 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5786 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5787 | &thermal_temp_input16_group); |
5788 | break; | |
5789 | case TPACPI_THERMAL_TPEC_8: | |
5790 | case TPACPI_THERMAL_ACPI_TMP07: | |
5791 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5792 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 5793 | &thermal_temp_input8_group); |
2c37aa4e HMH |
5794 | break; |
5795 | case TPACPI_THERMAL_NONE: | |
5796 | default: | |
5797 | break; | |
5798 | } | |
78f81cc4 BD |
5799 | } |
5800 | ||
887965e6 | 5801 | static int thermal_read(struct seq_file *m) |
a26f878a | 5802 | { |
a26f878a HMH |
5803 | int n, i; |
5804 | struct ibm_thermal_sensors_struct t; | |
5805 | ||
5806 | n = thermal_get_sensors(&t); | |
5807 | if (unlikely(n < 0)) | |
5808 | return n; | |
5809 | ||
887965e6 | 5810 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
5811 | |
5812 | if (n > 0) { | |
5813 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
5814 | seq_printf(m, "%d ", t.temp[i] / 1000); |
5815 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 5816 | } else |
887965e6 | 5817 | seq_printf(m, "not supported\n"); |
78f81cc4 | 5818 | |
887965e6 | 5819 | return 0; |
78f81cc4 BD |
5820 | } |
5821 | ||
a5763f22 HMH |
5822 | static struct ibm_struct thermal_driver_data = { |
5823 | .name = "thermal", | |
5824 | .read = thermal_read, | |
2c37aa4e | 5825 | .exit = thermal_exit, |
a5763f22 HMH |
5826 | }; |
5827 | ||
56b6aeb0 HMH |
5828 | /************************************************************************* |
5829 | * EC Dump subdriver | |
5830 | */ | |
5831 | ||
78f81cc4 BD |
5832 | static u8 ecdump_regs[256]; |
5833 | ||
887965e6 | 5834 | static int ecdump_read(struct seq_file *m) |
78f81cc4 | 5835 | { |
78f81cc4 BD |
5836 | int i, j; |
5837 | u8 v; | |
5838 | ||
887965e6 | 5839 | seq_printf(m, "EC " |
78f81cc4 BD |
5840 | " +00 +01 +02 +03 +04 +05 +06 +07" |
5841 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
5842 | for (i = 0; i < 256; i += 16) { | |
887965e6 | 5843 | seq_printf(m, "EC 0x%02x:", i); |
78f81cc4 BD |
5844 | for (j = 0; j < 16; j++) { |
5845 | if (!acpi_ec_read(i + j, &v)) | |
5846 | break; | |
5847 | if (v != ecdump_regs[i + j]) | |
887965e6 | 5848 | seq_printf(m, " *%02x", v); |
78f81cc4 | 5849 | else |
887965e6 | 5850 | seq_printf(m, " %02x", v); |
78f81cc4 BD |
5851 | ecdump_regs[i + j] = v; |
5852 | } | |
887965e6 | 5853 | seq_putc(m, '\n'); |
78f81cc4 BD |
5854 | if (j != 16) |
5855 | break; | |
5856 | } | |
5857 | ||
5858 | /* These are way too dangerous to advertise openly... */ | |
5859 | #if 0 | |
887965e6 | 5860 | seq_printf(m, "commands:\t0x<offset> 0x<value>" |
78f81cc4 | 5861 | " (<offset> is 00-ff, <value> is 00-ff)\n"); |
887965e6 | 5862 | seq_printf(m, "commands:\t0x<offset> <value> " |
78f81cc4 BD |
5863 | " (<offset> is 00-ff, <value> is 0-255)\n"); |
5864 | #endif | |
887965e6 | 5865 | return 0; |
78f81cc4 BD |
5866 | } |
5867 | ||
5868 | static int ecdump_write(char *buf) | |
5869 | { | |
5870 | char *cmd; | |
5871 | int i, v; | |
5872 | ||
5873 | while ((cmd = next_cmd(&buf))) { | |
5874 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
5875 | /* i and v set */ | |
5876 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
5877 | /* i and v set */ | |
5878 | } else | |
5879 | return -EINVAL; | |
5880 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
5881 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
5882 | return -EIO; |
5883 | } else | |
5884 | return -EINVAL; | |
5885 | } | |
5886 | ||
5887 | return 0; | |
78f81cc4 BD |
5888 | } |
5889 | ||
a5763f22 HMH |
5890 | static struct ibm_struct ecdump_driver_data = { |
5891 | .name = "ecdump", | |
5892 | .read = ecdump_read, | |
5893 | .write = ecdump_write, | |
92641177 | 5894 | .flags.experimental = 1, |
a5763f22 HMH |
5895 | }; |
5896 | ||
56b6aeb0 HMH |
5897 | /************************************************************************* |
5898 | * Backlight/brightness subdriver | |
5899 | */ | |
5900 | ||
f74a27d4 HMH |
5901 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5902 | ||
0e501834 HMH |
5903 | /* |
5904 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
5905 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
5906 | * | |
5907 | * EC HBRV (0x31) has the following layout | |
5908 | * Bit 7: unknown function | |
5909 | * Bit 6: unknown function | |
5910 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5911 | * Bit 4: must be set to zero to avoid problems | |
5912 | * Bit 3-0: backlight brightness level | |
5913 | * | |
5914 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
5915 | * |
5916 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
5917 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
5918 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
5919 | */ |
5920 | ||
e11aecf1 HMH |
5921 | enum { |
5922 | TP_EC_BACKLIGHT = 0x31, | |
5923 | ||
5924 | /* TP_EC_BACKLIGHT bitmasks */ | |
5925 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5926 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5927 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5928 | }; | |
5929 | ||
0e501834 HMH |
5930 | enum tpacpi_brightness_access_mode { |
5931 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
5932 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
5933 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
5934 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
5935 | TPACPI_BRGHT_MODE_MAX | |
5936 | }; | |
5937 | ||
94954cc6 | 5938 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
5939 | |
5940 | static enum tpacpi_brightness_access_mode brightness_mode = | |
5941 | TPACPI_BRGHT_MODE_MAX; | |
5942 | ||
f74a27d4 HMH |
5943 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
5944 | ||
b21a15f6 | 5945 | static struct mutex brightness_mutex; |
56b6aeb0 | 5946 | |
0e501834 HMH |
5947 | /* NVRAM brightness access, |
5948 | * call with brightness_mutex held! */ | |
5949 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 5950 | { |
0e501834 | 5951 | u8 lnvram; |
b21a15f6 | 5952 | |
0e501834 HMH |
5953 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
5954 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5955 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5956 | lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07; | |
5957 | ||
5958 | return lnvram; | |
5959 | } | |
5960 | ||
5961 | static void tpacpi_brightness_checkpoint_nvram(void) | |
5962 | { | |
5963 | u8 lec = 0; | |
5964 | u8 b_nvram; | |
5965 | ||
5966 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
5967 | return; | |
5968 | ||
5969 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5970 | "trying to checkpoint backlight level to NVRAM...\n"); | |
5971 | ||
5972 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
5973 | return; | |
5974 | ||
5975 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
5976 | goto unlock; | |
5977 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
5978 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
5979 | ||
5980 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5981 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
5982 | /* NVRAM needs update */ | |
5983 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
5984 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
5985 | b_nvram |= lec; | |
5986 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
5987 | dbg_printk(TPACPI_DBG_BRGHT, | |
5988 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
5989 | (unsigned int) lec, (unsigned int) b_nvram); | |
5990 | } else | |
5991 | vdbg_printk(TPACPI_DBG_BRGHT, | |
5992 | "NVRAM backlight level already is %u (0x%02x)\n", | |
5993 | (unsigned int) lec, (unsigned int) b_nvram); | |
5994 | ||
5995 | unlock: | |
5996 | mutex_unlock(&brightness_mutex); | |
5997 | } | |
5998 | ||
5999 | ||
6000 | /* call with brightness_mutex held! */ | |
6001 | static int tpacpi_brightness_get_raw(int *status) | |
6002 | { | |
6003 | u8 lec = 0; | |
6004 | ||
6005 | switch (brightness_mode) { | |
6006 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6007 | *status = tpacpi_brightness_nvram_get(); | |
6008 | return 0; | |
6009 | case TPACPI_BRGHT_MODE_EC: | |
6010 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6011 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6012 | return -EIO; |
0e501834 HMH |
6013 | *status = lec; |
6014 | return 0; | |
6015 | default: | |
6016 | return -ENXIO; | |
b21a15f6 | 6017 | } |
0e501834 HMH |
6018 | } |
6019 | ||
6020 | /* call with brightness_mutex held! */ | |
6021 | /* do NOT call with illegal backlight level value */ | |
6022 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6023 | { | |
6024 | u8 lec = 0; | |
6025 | ||
6026 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6027 | return -EIO; | |
6028 | ||
6029 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6030 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6031 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6032 | return -EIO; | |
6033 | ||
6034 | return 0; | |
6035 | } | |
6036 | ||
6037 | /* call with brightness_mutex held! */ | |
6038 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6039 | { | |
6040 | int cmos_cmd, inc; | |
6041 | unsigned int current_value, i; | |
6042 | ||
6043 | current_value = tpacpi_brightness_nvram_get(); | |
6044 | ||
6045 | if (value == current_value) | |
6046 | return 0; | |
6047 | ||
6048 | cmos_cmd = (value > current_value) ? | |
6049 | TP_CMOS_BRIGHTNESS_UP : | |
6050 | TP_CMOS_BRIGHTNESS_DOWN; | |
6051 | inc = (value > current_value) ? 1 : -1; | |
6052 | ||
6053 | for (i = current_value; i != value; i += inc) | |
6054 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6055 | return -EIO; | |
b21a15f6 | 6056 | |
e11aecf1 | 6057 | return 0; |
b21a15f6 HMH |
6058 | } |
6059 | ||
6060 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6061 | static int brightness_set(unsigned int value) |
b21a15f6 | 6062 | { |
0e501834 | 6063 | int res; |
b21a15f6 | 6064 | |
e11aecf1 HMH |
6065 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
6066 | value < 0) | |
b21a15f6 HMH |
6067 | return -EINVAL; |
6068 | ||
0e501834 HMH |
6069 | vdbg_printk(TPACPI_DBG_BRGHT, |
6070 | "set backlight level to %d\n", value); | |
6071 | ||
7646ea88 | 6072 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6073 | if (res < 0) |
6074 | return res; | |
6075 | ||
0e501834 HMH |
6076 | switch (brightness_mode) { |
6077 | case TPACPI_BRGHT_MODE_EC: | |
6078 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6079 | res = tpacpi_brightness_set_ec(value); | |
6080 | break; | |
6081 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6082 | res = tpacpi_brightness_set_ucmsstep(value); | |
6083 | break; | |
6084 | default: | |
6085 | res = -ENXIO; | |
b21a15f6 HMH |
6086 | } |
6087 | ||
b21a15f6 HMH |
6088 | mutex_unlock(&brightness_mutex); |
6089 | return res; | |
6090 | } | |
6091 | ||
6092 | /* sysfs backlight class ----------------------------------------------- */ | |
6093 | ||
6094 | static int brightness_update_status(struct backlight_device *bd) | |
6095 | { | |
0e501834 | 6096 | unsigned int level = |
b21a15f6 HMH |
6097 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6098 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6099 | bd->props.brightness : 0; |
6100 | ||
6101 | dbg_printk(TPACPI_DBG_BRGHT, | |
6102 | "backlight: attempt to set level to %d\n", | |
6103 | level); | |
6104 | ||
6105 | /* it is the backlight class's job (caller) to handle | |
6106 | * EINTR and other errors properly */ | |
6107 | return brightness_set(level); | |
b21a15f6 HMH |
6108 | } |
6109 | ||
e11aecf1 | 6110 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6111 | { |
e11aecf1 | 6112 | int status, res; |
a3f104c0 | 6113 | |
0e501834 | 6114 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6115 | if (res < 0) |
0e501834 HMH |
6116 | return 0; |
6117 | ||
6118 | res = tpacpi_brightness_get_raw(&status); | |
6119 | ||
6120 | mutex_unlock(&brightness_mutex); | |
6121 | ||
6122 | if (res < 0) | |
6123 | return 0; | |
e11e211a | 6124 | |
e11aecf1 | 6125 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6126 | } |
6127 | ||
347a2686 HMH |
6128 | static void tpacpi_brightness_notify_change(void) |
6129 | { | |
6130 | backlight_force_update(ibm_backlight_device, | |
6131 | BACKLIGHT_UPDATE_HOTKEY); | |
6132 | } | |
6133 | ||
b21a15f6 | 6134 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6135 | .get_brightness = brightness_get, |
6136 | .update_status = brightness_update_status, | |
56b6aeb0 | 6137 | }; |
e11e211a | 6138 | |
b21a15f6 | 6139 | /* --------------------------------------------------------------------- */ |
e11e211a | 6140 | |
59fe4fe3 HMH |
6141 | /* |
6142 | * These are only useful for models that have only one possibility | |
6143 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6144 | * these quirks. | |
6145 | */ | |
6146 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6147 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6148 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6149 | ||
6150 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6151 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6152 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6153 | ||
6da25bf5 | 6154 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6155 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6156 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6157 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6158 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6159 | ||
6da25bf5 | 6160 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6161 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6162 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6163 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6164 | |
6165 | /* Models with Intel GMA900 */ | |
6166 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6167 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6168 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6169 | }; | |
6170 | ||
a5763f22 | 6171 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6172 | { |
a19a6ee6 | 6173 | struct backlight_properties props; |
56b6aeb0 | 6174 | int b; |
59fe4fe3 | 6175 | unsigned long quirks; |
56b6aeb0 | 6176 | |
fe08bc4b HMH |
6177 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6178 | ||
f432255e HMH |
6179 | mutex_init(&brightness_mutex); |
6180 | ||
59fe4fe3 HMH |
6181 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6182 | ARRAY_SIZE(brightness_quirk_table)); | |
6183 | ||
b5972796 HMH |
6184 | /* |
6185 | * We always attempt to detect acpi support, so as to switch | |
6186 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6187 | * going to publish a backlight interface | |
6188 | */ | |
6189 | b = tpacpi_check_std_acpi_brightness_support(); | |
6190 | if (b > 0) { | |
2dba1b5d TR |
6191 | |
6192 | if (acpi_video_backlight_support()) { | |
6193 | if (brightness_enable > 1) { | |
6194 | printk(TPACPI_NOTICE | |
6195 | "Standard ACPI backlight interface " | |
6196 | "available, not loading native one.\n"); | |
6197 | return 1; | |
6198 | } else if (brightness_enable == 1) { | |
6199 | printk(TPACPI_NOTICE | |
6200 | "Backlight control force enabled, even if standard " | |
6201 | "ACPI backlight interface is available\n"); | |
6202 | } | |
6203 | } else { | |
6204 | if (brightness_enable > 1) { | |
6205 | printk(TPACPI_NOTICE | |
6206 | "Standard ACPI backlight interface not " | |
6207 | "available, thinkpad_acpi native " | |
6208 | "brightness control enabled\n"); | |
6209 | } | |
e11e211a | 6210 | } |
87cc537a HMH |
6211 | } |
6212 | ||
b5972796 | 6213 | if (!brightness_enable) { |
0e501834 | 6214 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6215 | "brightness support disabled by " |
6216 | "module parameter\n"); | |
6217 | return 1; | |
6218 | } | |
6219 | ||
6220 | if (b > 16) { | |
6221 | printk(TPACPI_ERR | |
6222 | "Unsupported brightness interface, " | |
6223 | "please contact %s\n", TPACPI_MAIL); | |
6224 | return 1; | |
6225 | } | |
6226 | if (b == 16) | |
6227 | tp_features.bright_16levels = 1; | |
6228 | ||
0e501834 HMH |
6229 | /* |
6230 | * Check for module parameter bogosity, note that we | |
6231 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6232 | * able to detect "unspecified" | |
6233 | */ | |
6234 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6235 | return -EINVAL; | |
24d3b774 | 6236 | |
0e501834 HMH |
6237 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6238 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6239 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6240 | if (quirks & TPACPI_BRGHT_Q_EC) |
6241 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6242 | else | |
0e501834 | 6243 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6244 | |
0e501834 | 6245 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6246 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6247 | brightness_mode); |
6248 | } | |
24d3b774 | 6249 | |
d7880f10 HMH |
6250 | /* Safety */ |
6251 | if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM && | |
6252 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || | |
6253 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6254 | return -EINVAL; | |
6255 | ||
0e501834 | 6256 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6257 | return 1; |
56b6aeb0 | 6258 | |
a3f104c0 | 6259 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
6260 | printk(TPACPI_INFO |
6261 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 6262 | |
a19a6ee6 MG |
6263 | memset(&props, 0, sizeof(struct backlight_properties)); |
6264 | props.max_brightness = (tp_features.bright_16levels) ? 15 : 7; | |
6265 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, | |
6266 | NULL, NULL, | |
6267 | &ibm_backlight_data, | |
6268 | &props); | |
56b6aeb0 | 6269 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6270 | int rc = PTR_ERR(ibm_backlight_device); |
6271 | ibm_backlight_device = NULL; | |
e0c7dfe7 | 6272 | printk(TPACPI_ERR "Could not register backlight device\n"); |
435c47e2 | 6273 | return rc; |
56b6aeb0 | 6274 | } |
0e501834 HMH |
6275 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6276 | "brightness is supported\n"); | |
56b6aeb0 | 6277 | |
59fe4fe3 HMH |
6278 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
6279 | printk(TPACPI_NOTICE | |
6280 | "brightness: will use unverified default: " | |
6281 | "brightness_mode=%d\n", brightness_mode); | |
6282 | printk(TPACPI_NOTICE | |
6283 | "brightness: please report to %s whether it works well " | |
6284 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
6285 | } | |
6286 | ||
e11aecf1 | 6287 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
6288 | backlight_update_status(ibm_backlight_device); |
6289 | ||
347a2686 HMH |
6290 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6291 | "brightness: registering brightness hotkeys " | |
6292 | "as change notification\n"); | |
6293 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6294 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
6295 | | TP_ACPI_HKEY_BRGHTDWN_MASK);; | |
56b6aeb0 HMH |
6296 | return 0; |
6297 | } | |
6298 | ||
0e501834 HMH |
6299 | static void brightness_suspend(pm_message_t state) |
6300 | { | |
6301 | tpacpi_brightness_checkpoint_nvram(); | |
6302 | } | |
6303 | ||
6304 | static void brightness_shutdown(void) | |
6305 | { | |
6306 | tpacpi_brightness_checkpoint_nvram(); | |
6307 | } | |
6308 | ||
56b6aeb0 HMH |
6309 | static void brightness_exit(void) |
6310 | { | |
6311 | if (ibm_backlight_device) { | |
0e501834 | 6312 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6313 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6314 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6315 | } |
0e501834 HMH |
6316 | |
6317 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6318 | } |
6319 | ||
887965e6 | 6320 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6321 | { |
56b6aeb0 HMH |
6322 | int level; |
6323 | ||
35ff8b9f HMH |
6324 | level = brightness_get(NULL); |
6325 | if (level < 0) { | |
887965e6 | 6326 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6327 | } else { |
887965e6 AD |
6328 | seq_printf(m, "level:\t\t%d\n", level); |
6329 | seq_printf(m, "commands:\tup, down\n"); | |
6330 | seq_printf(m, "commands:\tlevel <level>" | |
a3f104c0 HMH |
6331 | " (<level> is 0-%d)\n", |
6332 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
6333 | } |
6334 | ||
887965e6 | 6335 | return 0; |
56b6aeb0 HMH |
6336 | } |
6337 | ||
8acb0250 HM |
6338 | static int brightness_write(char *buf) |
6339 | { | |
6340 | int level; | |
4273af8d | 6341 | int rc; |
1da177e4 | 6342 | char *cmd; |
a3f104c0 | 6343 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 6344 | |
4273af8d HMH |
6345 | level = brightness_get(NULL); |
6346 | if (level < 0) | |
6347 | return level; | |
78f81cc4 | 6348 | |
4273af8d | 6349 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6350 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
6351 | if (level < max_level) |
6352 | level++; | |
78f81cc4 | 6353 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6354 | if (level > 0) |
6355 | level--; | |
6356 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
6357 | level >= 0 && level <= max_level) { | |
6358 | /* new level set */ | |
78f81cc4 BD |
6359 | } else |
6360 | return -EINVAL; | |
78f81cc4 BD |
6361 | } |
6362 | ||
0e501834 HMH |
6363 | tpacpi_disclose_usertask("procfs brightness", |
6364 | "set level to %d\n", level); | |
6365 | ||
4273af8d HMH |
6366 | /* |
6367 | * Now we know what the final level should be, so we try to set it. | |
6368 | * Doing it this way makes the syscall restartable in case of EINTR | |
6369 | */ | |
6370 | rc = brightness_set(level); | |
347a2686 HMH |
6371 | if (!rc && ibm_backlight_device) |
6372 | backlight_force_update(ibm_backlight_device, | |
6373 | BACKLIGHT_UPDATE_SYSFS); | |
80a8d122 | 6374 | return (rc == -EINTR)? -ERESTARTSYS : rc; |
78f81cc4 BD |
6375 | } |
6376 | ||
a5763f22 HMH |
6377 | static struct ibm_struct brightness_driver_data = { |
6378 | .name = "brightness", | |
6379 | .read = brightness_read, | |
6380 | .write = brightness_write, | |
6381 | .exit = brightness_exit, | |
0e501834 HMH |
6382 | .suspend = brightness_suspend, |
6383 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6384 | }; |
6385 | ||
56b6aeb0 HMH |
6386 | /************************************************************************* |
6387 | * Volume subdriver | |
6388 | */ | |
fb87a811 | 6389 | |
329e4e18 HMH |
6390 | /* |
6391 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6392 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6393 | * | |
6394 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6395 | * ThinkPads only implement the MUTE gate. | |
6396 | * | |
6397 | * EC register 0x30 | |
6398 | * Bit 6: MUTE (1 mutes sound) | |
6399 | * Bit 3-0: Volume | |
6400 | * Other bits should be zero as far as we know. | |
6401 | * | |
6402 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6403 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6404 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6405 | * and we leave them unchanged. | |
6406 | */ | |
6407 | ||
ff850c33 HMH |
6408 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
6409 | ||
0d204c34 HMH |
6410 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
6411 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
6412 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
6413 | ||
ead510ce | 6414 | static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */ |
0d204c34 HMH |
6415 | static char *alsa_id = "ThinkPadEC"; |
6416 | static int alsa_enable = SNDRV_DEFAULT_ENABLE1; | |
6417 | ||
6418 | struct tpacpi_alsa_data { | |
6419 | struct snd_card *card; | |
6420 | struct snd_ctl_elem_id *ctl_mute_id; | |
6421 | struct snd_ctl_elem_id *ctl_vol_id; | |
6422 | }; | |
6423 | ||
6424 | static struct snd_card *alsa_card; | |
6425 | ||
329e4e18 HMH |
6426 | enum { |
6427 | TP_EC_AUDIO = 0x30, | |
6428 | ||
6429 | /* TP_EC_AUDIO bits */ | |
6430 | TP_EC_AUDIO_MUTESW = 6, | |
6431 | ||
6432 | /* TP_EC_AUDIO bitmasks */ | |
6433 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6434 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6435 | ||
6436 | /* Maximum volume */ | |
6437 | TP_EC_VOLUME_MAX = 14, | |
6438 | }; | |
6439 | ||
6440 | enum tpacpi_volume_access_mode { | |
6441 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6442 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6443 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6444 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6445 | TPACPI_VOL_MODE_MAX | |
6446 | }; | |
6447 | ||
a112ceee HMH |
6448 | enum tpacpi_volume_capabilities { |
6449 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6450 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6451 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6452 | TPACPI_VOL_CAP_MAX | |
6453 | }; | |
6454 | ||
329e4e18 HMH |
6455 | static enum tpacpi_volume_access_mode volume_mode = |
6456 | TPACPI_VOL_MODE_MAX; | |
6457 | ||
a112ceee | 6458 | static enum tpacpi_volume_capabilities volume_capabilities; |
c7ac6291 | 6459 | static int volume_control_allowed; |
f74a27d4 | 6460 | |
329e4e18 HMH |
6461 | /* |
6462 | * Used to syncronize writers to TP_EC_AUDIO and | |
6463 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
6464 | */ | |
6465 | static struct mutex volume_mutex; | |
6466 | ||
6467 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 6468 | { |
329e4e18 HMH |
6469 | u8 lec = 0; |
6470 | u8 b_nvram; | |
a112ceee | 6471 | u8 ec_mask; |
329e4e18 HMH |
6472 | |
6473 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
6474 | return; | |
c7ac6291 HMH |
6475 | if (!volume_control_allowed) |
6476 | return; | |
329e4e18 HMH |
6477 | |
6478 | vdbg_printk(TPACPI_DBG_MIXER, | |
6479 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 6480 | |
a112ceee HMH |
6481 | if (tp_features.mixer_no_level_control) |
6482 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6483 | else | |
6484 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6485 | ||
329e4e18 HMH |
6486 | if (mutex_lock_killable(&volume_mutex) < 0) |
6487 | return; | |
6488 | ||
6489 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6490 | goto unlock; | |
6491 | lec &= ec_mask; | |
6492 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6493 | ||
6494 | if (lec != (b_nvram & ec_mask)) { | |
6495 | /* NVRAM needs update */ | |
6496 | b_nvram &= ~ec_mask; | |
6497 | b_nvram |= lec; | |
6498 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6499 | dbg_printk(TPACPI_DBG_MIXER, | |
6500 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6501 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 6502 | } else { |
329e4e18 HMH |
6503 | vdbg_printk(TPACPI_DBG_MIXER, |
6504 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6505 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
6506 | } |
6507 | ||
329e4e18 HMH |
6508 | unlock: |
6509 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
6510 | } |
6511 | ||
329e4e18 | 6512 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 6513 | { |
329e4e18 | 6514 | u8 s; |
78f81cc4 | 6515 | |
329e4e18 HMH |
6516 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
6517 | return -EIO; | |
78f81cc4 | 6518 | |
329e4e18 | 6519 | *status = s; |
1da177e4 | 6520 | |
329e4e18 | 6521 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 6522 | |
329e4e18 HMH |
6523 | return 0; |
6524 | } | |
78f81cc4 | 6525 | |
329e4e18 HMH |
6526 | static int volume_get_status(u8 *status) |
6527 | { | |
6528 | return volume_get_status_ec(status); | |
6529 | } | |
78f81cc4 | 6530 | |
329e4e18 HMH |
6531 | static int volume_set_status_ec(const u8 status) |
6532 | { | |
6533 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6534 | return -EIO; | |
78f81cc4 | 6535 | |
329e4e18 HMH |
6536 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
6537 | ||
6538 | return 0; | |
6539 | } | |
6540 | ||
6541 | static int volume_set_status(const u8 status) | |
6542 | { | |
6543 | return volume_set_status_ec(status); | |
6544 | } | |
6545 | ||
88cc8377 HMH |
6546 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6547 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
6548 | { |
6549 | int rc; | |
6550 | u8 s, n; | |
6551 | ||
6552 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6553 | return -EINTR; | |
6554 | ||
6555 | rc = volume_get_status_ec(&s); | |
6556 | if (rc) | |
6557 | goto unlock; | |
6558 | ||
6559 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6560 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6561 | ||
88cc8377 | 6562 | if (n != s) { |
329e4e18 | 6563 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6564 | if (!rc) |
6565 | rc = 1; | |
6566 | } | |
329e4e18 HMH |
6567 | |
6568 | unlock: | |
6569 | mutex_unlock(&volume_mutex); | |
6570 | return rc; | |
6571 | } | |
6572 | ||
88cc8377 HMH |
6573 | static int volume_alsa_set_mute(const bool mute) |
6574 | { | |
6575 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
6576 | (mute) ? "" : "un"); | |
6577 | return __volume_set_mute_ec(mute); | |
6578 | } | |
6579 | ||
329e4e18 HMH |
6580 | static int volume_set_mute(const bool mute) |
6581 | { | |
88cc8377 HMH |
6582 | int rc; |
6583 | ||
329e4e18 HMH |
6584 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
6585 | (mute) ? "" : "un"); | |
88cc8377 HMH |
6586 | |
6587 | rc = __volume_set_mute_ec(mute); | |
6588 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
6589 | } |
6590 | ||
88cc8377 HMH |
6591 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6592 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
6593 | { |
6594 | int rc; | |
6595 | u8 s, n; | |
6596 | ||
6597 | if (vol > TP_EC_VOLUME_MAX) | |
6598 | return -EINVAL; | |
6599 | ||
6600 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6601 | return -EINTR; | |
6602 | ||
6603 | rc = volume_get_status_ec(&s); | |
6604 | if (rc) | |
6605 | goto unlock; | |
6606 | ||
6607 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6608 | ||
88cc8377 | 6609 | if (n != s) { |
329e4e18 | 6610 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6611 | if (!rc) |
6612 | rc = 1; | |
6613 | } | |
329e4e18 HMH |
6614 | |
6615 | unlock: | |
6616 | mutex_unlock(&volume_mutex); | |
6617 | return rc; | |
6618 | } | |
6619 | ||
88cc8377 | 6620 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
6621 | { |
6622 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
6623 | "ALSA: trying to set volume level to %hu\n", vol); |
6624 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
6625 | } |
6626 | ||
0d204c34 HMH |
6627 | static void volume_alsa_notify_change(void) |
6628 | { | |
6629 | struct tpacpi_alsa_data *d; | |
6630 | ||
6631 | if (alsa_card && alsa_card->private_data) { | |
6632 | d = alsa_card->private_data; | |
6633 | if (d->ctl_mute_id) | |
6634 | snd_ctl_notify(alsa_card, | |
6635 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6636 | d->ctl_mute_id); | |
6637 | if (d->ctl_vol_id) | |
6638 | snd_ctl_notify(alsa_card, | |
6639 | SNDRV_CTL_EVENT_MASK_VALUE, | |
6640 | d->ctl_vol_id); | |
6641 | } | |
6642 | } | |
6643 | ||
6644 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
6645 | struct snd_ctl_elem_info *uinfo) | |
6646 | { | |
6647 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
6648 | uinfo->count = 1; | |
6649 | uinfo->value.integer.min = 0; | |
6650 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
6651 | return 0; | |
6652 | } | |
6653 | ||
6654 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
6655 | struct snd_ctl_elem_value *ucontrol) | |
6656 | { | |
6657 | u8 s; | |
6658 | int rc; | |
6659 | ||
6660 | rc = volume_get_status(&s); | |
6661 | if (rc < 0) | |
6662 | return rc; | |
6663 | ||
6664 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
6665 | return 0; | |
6666 | } | |
6667 | ||
6668 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
6669 | struct snd_ctl_elem_value *ucontrol) | |
6670 | { | |
88cc8377 | 6671 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6672 | } |
6673 | ||
6674 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
6675 | ||
6676 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
6677 | struct snd_ctl_elem_value *ucontrol) | |
6678 | { | |
6679 | u8 s; | |
6680 | int rc; | |
6681 | ||
6682 | rc = volume_get_status(&s); | |
6683 | if (rc < 0) | |
6684 | return rc; | |
6685 | ||
6686 | ucontrol->value.integer.value[0] = | |
6687 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
6688 | return 0; | |
6689 | } | |
6690 | ||
6691 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
6692 | struct snd_ctl_elem_value *ucontrol) | |
6693 | { | |
88cc8377 | 6694 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
6695 | } |
6696 | ||
6697 | static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = { | |
6698 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6699 | .name = "Console Playback Volume", | |
6700 | .index = 0, | |
6701 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6702 | .info = volume_alsa_vol_info, | |
6703 | .get = volume_alsa_vol_get, | |
6704 | }; | |
6705 | ||
6706 | static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = { | |
6707 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
6708 | .name = "Console Playback Switch", | |
6709 | .index = 0, | |
6710 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
6711 | .info = volume_alsa_mute_info, | |
6712 | .get = volume_alsa_mute_get, | |
6713 | }; | |
6714 | ||
329e4e18 HMH |
6715 | static void volume_suspend(pm_message_t state) |
6716 | { | |
6717 | tpacpi_volume_checkpoint_nvram(); | |
6718 | } | |
6719 | ||
0d204c34 HMH |
6720 | static void volume_resume(void) |
6721 | { | |
6722 | volume_alsa_notify_change(); | |
6723 | } | |
6724 | ||
329e4e18 HMH |
6725 | static void volume_shutdown(void) |
6726 | { | |
6727 | tpacpi_volume_checkpoint_nvram(); | |
6728 | } | |
6729 | ||
6730 | static void volume_exit(void) | |
6731 | { | |
0d204c34 HMH |
6732 | if (alsa_card) { |
6733 | snd_card_free(alsa_card); | |
6734 | alsa_card = NULL; | |
6735 | } | |
6736 | ||
329e4e18 HMH |
6737 | tpacpi_volume_checkpoint_nvram(); |
6738 | } | |
6739 | ||
0d204c34 HMH |
6740 | static int __init volume_create_alsa_mixer(void) |
6741 | { | |
6742 | struct snd_card *card; | |
6743 | struct tpacpi_alsa_data *data; | |
6744 | struct snd_kcontrol *ctl_vol; | |
6745 | struct snd_kcontrol *ctl_mute; | |
6746 | int rc; | |
6747 | ||
6748 | rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, | |
6749 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 HMH |
6750 | if (rc < 0 || !card) { |
6751 | printk(TPACPI_ERR | |
6752 | "Failed to create ALSA card structures: %d\n", rc); | |
6753 | return 1; | |
6754 | } | |
0d204c34 HMH |
6755 | |
6756 | BUG_ON(!card->private_data); | |
6757 | data = card->private_data; | |
6758 | data->card = card; | |
6759 | ||
6760 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
6761 | sizeof(card->driver)); | |
6762 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
6763 | sizeof(card->shortname)); | |
6764 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
6765 | (thinkpad_id.ec_version_str) ? | |
6766 | thinkpad_id.ec_version_str : "(unknown)"); | |
6767 | snprintf(card->longname, sizeof(card->longname), | |
6768 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
6769 | (thinkpad_id.ec_version_str) ? | |
6770 | thinkpad_id.ec_version_str : "unknown"); | |
6771 | ||
6772 | if (volume_control_allowed) { | |
6773 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
6774 | volume_alsa_control_vol.access = | |
6775 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6776 | ||
6777 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
6778 | volume_alsa_control_mute.access = | |
6779 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
6780 | } | |
6781 | ||
6782 | if (!tp_features.mixer_no_level_control) { | |
6783 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
6784 | rc = snd_ctl_add(card, ctl_vol); | |
6785 | if (rc < 0) { | |
6786 | printk(TPACPI_ERR | |
74c75c18 HMH |
6787 | "Failed to create ALSA volume control: %d\n", |
6788 | rc); | |
6789 | goto err_exit; | |
78f81cc4 | 6790 | } |
0d204c34 HMH |
6791 | data->ctl_vol_id = &ctl_vol->id; |
6792 | } | |
78f81cc4 | 6793 | |
0d204c34 HMH |
6794 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
6795 | rc = snd_ctl_add(card, ctl_mute); | |
6796 | if (rc < 0) { | |
74c75c18 HMH |
6797 | printk(TPACPI_ERR "Failed to create ALSA mute control: %d\n", |
6798 | rc); | |
6799 | goto err_exit; | |
0d204c34 HMH |
6800 | } |
6801 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 6802 | |
0d204c34 HMH |
6803 | snd_card_set_dev(card, &tpacpi_pdev->dev); |
6804 | rc = snd_card_register(card); | |
0d204c34 | 6805 | if (rc < 0) { |
74c75c18 HMH |
6806 | printk(TPACPI_ERR "Failed to register ALSA card: %d\n", rc); |
6807 | goto err_exit; | |
0d204c34 HMH |
6808 | } |
6809 | ||
6810 | alsa_card = card; | |
74c75c18 HMH |
6811 | return 0; |
6812 | ||
6813 | err_exit: | |
6814 | snd_card_free(card); | |
6815 | return 1; | |
0d204c34 HMH |
6816 | } |
6817 | ||
a112ceee HMH |
6818 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
6819 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
6820 | ||
6821 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
6822 | /* Whitelist volume level on all IBM by default */ | |
6823 | { .vendor = PCI_VENDOR_ID_IBM, | |
6824 | .bios = TPACPI_MATCH_ANY, | |
6825 | .ec = TPACPI_MATCH_ANY, | |
6826 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
6827 | ||
6828 | /* Lenovo models with volume control (needs confirmation) */ | |
6829 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
6830 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
6831 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
6832 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
6833 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
6834 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
6835 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
6836 | ||
6837 | /* Whitelist mute-only on all Lenovo by default */ | |
6838 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
6839 | .bios = TPACPI_MATCH_ANY, | |
6840 | .ec = TPACPI_MATCH_ANY, | |
6841 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
6842 | }; | |
6843 | ||
329e4e18 HMH |
6844 | static int __init volume_init(struct ibm_init_struct *iibm) |
6845 | { | |
a112ceee | 6846 | unsigned long quirks; |
0d204c34 | 6847 | int rc; |
a112ceee | 6848 | |
329e4e18 HMH |
6849 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
6850 | ||
6851 | mutex_init(&volume_mutex); | |
6852 | ||
6853 | /* | |
6854 | * Check for module parameter bogosity, note that we | |
6855 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
6856 | * able to detect "unspecified" | |
6857 | */ | |
6858 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
6859 | return -EINVAL; | |
6860 | ||
6861 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
6862 | printk(TPACPI_ERR | |
6863 | "UCMS step volume mode not implemented, " | |
6864 | "please contact %s\n", TPACPI_MAIL); | |
6865 | return 1; | |
6866 | } | |
6867 | ||
a112ceee HMH |
6868 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
6869 | return -EINVAL; | |
6870 | ||
0d204c34 HMH |
6871 | /* |
6872 | * The ALSA mixer is our primary interface. | |
6873 | * When disabled, don't install the subdriver at all | |
6874 | */ | |
6875 | if (!alsa_enable) { | |
6876 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6877 | "ALSA mixer disabled by parameter, " | |
6878 | "not loading volume subdriver...\n"); | |
6879 | return 1; | |
6880 | } | |
6881 | ||
a112ceee HMH |
6882 | quirks = tpacpi_check_quirks(volume_quirk_table, |
6883 | ARRAY_SIZE(volume_quirk_table)); | |
6884 | ||
6885 | switch (volume_capabilities) { | |
6886 | case TPACPI_VOL_CAP_AUTO: | |
6887 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
6888 | tp_features.mixer_no_level_control = 1; | |
6889 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
6890 | tp_features.mixer_no_level_control = 0; | |
6891 | else | |
6892 | return 1; /* no mixer */ | |
6893 | break; | |
6894 | case TPACPI_VOL_CAP_VOLMUTE: | |
6895 | tp_features.mixer_no_level_control = 0; | |
6896 | break; | |
6897 | case TPACPI_VOL_CAP_MUTEONLY: | |
6898 | tp_features.mixer_no_level_control = 1; | |
6899 | break; | |
6900 | default: | |
6901 | return 1; | |
6902 | } | |
6903 | ||
6904 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
6905 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6906 | "using user-supplied volume_capabilities=%d\n", | |
6907 | volume_capabilities); | |
6908 | ||
329e4e18 HMH |
6909 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
6910 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
6911 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
6912 | ||
6913 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6914 | "driver auto-selected volume_mode=%d\n", | |
6915 | volume_mode); | |
6916 | } else { | |
6917 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6918 | "using user-supplied volume_mode=%d\n", | |
6919 | volume_mode); | |
6920 | } | |
6921 | ||
6922 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
6923 | "mute is supported, volume control is %s\n", |
6924 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 6925 | |
0d204c34 HMH |
6926 | rc = volume_create_alsa_mixer(); |
6927 | if (rc) { | |
6928 | printk(TPACPI_ERR | |
6929 | "Could not create the ALSA mixer interface\n"); | |
6930 | return rc; | |
6931 | } | |
6932 | ||
c7ac6291 HMH |
6933 | printk(TPACPI_INFO |
6934 | "Console audio control enabled, mode: %s\n", | |
6935 | (volume_control_allowed) ? | |
6936 | "override (read/write)" : | |
6937 | "monitor (read only)"); | |
6938 | ||
0d204c34 HMH |
6939 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
6940 | "registering volume hotkeys as change notification\n"); | |
6941 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6942 | | TP_ACPI_HKEY_VOLUP_MASK | |
6943 | | TP_ACPI_HKEY_VOLDWN_MASK | |
6944 | | TP_ACPI_HKEY_MUTE_MASK); | |
6945 | ||
329e4e18 HMH |
6946 | return 0; |
6947 | } | |
f74a27d4 | 6948 | |
887965e6 | 6949 | static int volume_read(struct seq_file *m) |
78f81cc4 | 6950 | { |
329e4e18 | 6951 | u8 status; |
78f81cc4 | 6952 | |
329e4e18 | 6953 | if (volume_get_status(&status) < 0) { |
887965e6 | 6954 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 6955 | } else { |
a112ceee | 6956 | if (tp_features.mixer_no_level_control) |
887965e6 | 6957 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 6958 | else |
887965e6 | 6959 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
6960 | status & TP_EC_AUDIO_LVL_MSK); |
6961 | ||
887965e6 | 6962 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 6963 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 6964 | |
c7ac6291 | 6965 | if (volume_control_allowed) { |
887965e6 | 6966 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 6967 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 6968 | seq_printf(m, |
c7ac6291 | 6969 | "commands:\tup, down\n"); |
887965e6 | 6970 | seq_printf(m, |
c7ac6291 HMH |
6971 | "commands:\tlevel <level>" |
6972 | " (<level> is 0-%d)\n", | |
6973 | TP_EC_VOLUME_MAX); | |
6974 | } | |
78f81cc4 BD |
6975 | } |
6976 | } | |
6977 | ||
6978 | return 0; | |
6979 | } | |
6980 | ||
78f81cc4 BD |
6981 | static int volume_write(char *buf) |
6982 | { | |
329e4e18 HMH |
6983 | u8 s; |
6984 | u8 new_level, new_mute; | |
6985 | int l; | |
78f81cc4 | 6986 | char *cmd; |
329e4e18 | 6987 | int rc; |
78f81cc4 | 6988 | |
c7ac6291 HMH |
6989 | /* |
6990 | * We do allow volume control at driver startup, so that the | |
6991 | * user can set initial state through the volume=... parameter hack. | |
6992 | */ | |
6993 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
6994 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
6995 | tp_warned.volume_ctrl_forbidden = 1; | |
6996 | printk(TPACPI_NOTICE | |
6997 | "Console audio control in monitor mode, " | |
6998 | "changes are not allowed.\n"); | |
6999 | printk(TPACPI_NOTICE | |
7000 | "Use the volume_control=1 module parameter " | |
7001 | "to enable volume control\n"); | |
7002 | } | |
7003 | return -EPERM; | |
7004 | } | |
7005 | ||
329e4e18 HMH |
7006 | rc = volume_get_status(&s); |
7007 | if (rc < 0) | |
7008 | return rc; | |
78f81cc4 | 7009 | |
329e4e18 HMH |
7010 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7011 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7012 | ||
7013 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7014 | if (!tp_features.mixer_no_level_control) { |
7015 | if (strlencmp(cmd, "up") == 0) { | |
7016 | if (new_mute) | |
7017 | new_mute = 0; | |
7018 | else if (new_level < TP_EC_VOLUME_MAX) | |
7019 | new_level++; | |
7020 | continue; | |
7021 | } else if (strlencmp(cmd, "down") == 0) { | |
7022 | if (new_mute) | |
7023 | new_mute = 0; | |
7024 | else if (new_level > 0) | |
7025 | new_level--; | |
7026 | continue; | |
7027 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7028 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7029 | new_level = l; | |
7030 | continue; | |
7031 | } | |
7032 | } | |
7033 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7034 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7035 | else if (strlencmp(cmd, "unmute") == 0) |
7036 | new_mute = 0; | |
7037 | else | |
1da177e4 | 7038 | return -EINVAL; |
329e4e18 | 7039 | } |
1da177e4 | 7040 | |
a112ceee HMH |
7041 | if (tp_features.mixer_no_level_control) { |
7042 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7043 | new_mute ? "" : "un"); | |
7044 | rc = volume_set_mute(!!new_mute); | |
7045 | } else { | |
7046 | tpacpi_disclose_usertask("procfs volume", | |
7047 | "%smute and set level to %d\n", | |
7048 | new_mute ? "" : "un", new_level); | |
7049 | rc = volume_set_status(new_mute | new_level); | |
7050 | } | |
0d204c34 | 7051 | volume_alsa_notify_change(); |
78f81cc4 | 7052 | |
329e4e18 | 7053 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7054 | } |
7055 | ||
a5763f22 HMH |
7056 | static struct ibm_struct volume_driver_data = { |
7057 | .name = "volume", | |
7058 | .read = volume_read, | |
7059 | .write = volume_write, | |
329e4e18 HMH |
7060 | .exit = volume_exit, |
7061 | .suspend = volume_suspend, | |
0d204c34 | 7062 | .resume = volume_resume, |
329e4e18 | 7063 | .shutdown = volume_shutdown, |
a5763f22 | 7064 | }; |
56b6aeb0 | 7065 | |
ff850c33 HMH |
7066 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7067 | ||
7068 | #define alsa_card NULL | |
7069 | ||
7070 | static void inline volume_alsa_notify_change(void) | |
7071 | { | |
7072 | } | |
7073 | ||
7074 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7075 | { | |
7076 | printk(TPACPI_INFO | |
7077 | "volume: disabled as there is no ALSA support in this kernel\n"); | |
7078 | ||
7079 | return 1; | |
7080 | } | |
7081 | ||
7082 | static struct ibm_struct volume_driver_data = { | |
7083 | .name = "volume", | |
7084 | }; | |
7085 | ||
7086 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7087 | ||
56b6aeb0 HMH |
7088 | /************************************************************************* |
7089 | * Fan subdriver | |
7090 | */ | |
7091 | ||
7092 | /* | |
7093 | * FAN ACCESS MODES | |
7094 | * | |
efa27145 | 7095 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7096 | * ACPI GFAN method: returns fan level |
7097 | * | |
efa27145 | 7098 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7099 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7100 | * |
efa27145 | 7101 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7102 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7103 | * | |
f51d1a39 HMH |
7104 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7105 | * it for writing. | |
56b6aeb0 | 7106 | * |
efa27145 | 7107 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7108 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7109 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7110 | * |
7111 | * Fan speed changes of any sort (including those caused by the | |
7112 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7113 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7114 | * limited. |
7115 | * | |
7116 | * Reading is not available if GFAN exists. | |
7117 | * Writing is not available if SFAN exists. | |
7118 | * | |
7119 | * Bits | |
7120 | * 7 automatic mode engaged; | |
7121 | * (default operation mode of the ThinkPad) | |
7122 | * fan level is ignored in this mode. | |
f51d1a39 | 7123 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7124 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7125 | * the tachometer while the fan controller ramps up |
7126 | * the speed (which can take up to a few *minutes*). | |
7127 | * Speeds up fan to 100% duty-cycle, which is far above | |
7128 | * the standard RPM levels. It is not impossible that | |
7129 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7130 | * 5-3 unused in some models. Extra bits for fan level |
7131 | * in others, but still useless as all values above | |
7132 | * 7 map to the same speed as level 7 in these models. | |
7133 | * 2-0 fan level (0..7 usually) | |
7134 | * 0x00 = stop | |
7135 | * 0x07 = max (set when temperatures critical) | |
7136 | * Some ThinkPads may have other levels, see | |
efa27145 | 7137 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7138 | * |
7139 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
7140 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
7141 | * does so, its initial value is meaningless (0x07). | |
7142 | * | |
7143 | * For firmware bugs, refer to: | |
7144 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7145 | * | |
7146 | * ---- | |
7147 | * | |
7148 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7149 | * Main fan tachometer reading (in RPM) | |
7150 | * | |
7151 | * This register is present on all ThinkPads with a new-style EC, and | |
7152 | * it is known not to be present on the A21m/e, and T22, as there is | |
7153 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7154 | * ThinkPads from this same time period (and earlier) probably lack the | |
7155 | * tachometer as well. | |
7156 | * | |
877d0310 | 7157 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7158 | * was never fixed by IBM to report the EC firmware version string |
7159 | * probably support the tachometer (like the early X models), so | |
7160 | * detecting it is quite hard. We need more data to know for sure. | |
7161 | * | |
7162 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7163 | * might result. | |
7164 | * | |
f51d1a39 HMH |
7165 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7166 | * mode. | |
56b6aeb0 HMH |
7167 | * |
7168 | * For firmware bugs, refer to: | |
7169 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7170 | * | |
d7377247 HMH |
7171 | * ---- |
7172 | * | |
7173 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7174 | * | |
7175 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7176 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7177 | * is one, the tachometer registers show the speed of the auxiliary | |
7178 | * fan. | |
7179 | * | |
7180 | * Fan control seems to affect both fans, regardless of the state | |
7181 | * of this bit. | |
7182 | * | |
7183 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7184 | * seem to support this (firmware TP-7M). | |
7185 | * | |
efa27145 | 7186 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7187 | * ThinkPad X31, X40, X41. Not available in the X60. |
7188 | * | |
7189 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7190 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7191 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7192 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7193 | * | |
7194 | * The speeds are stored on handles | |
7195 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7196 | * | |
af901ca1 | 7197 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7198 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7199 | * | |
7200 | * ACPI DSDT switches which set is in use depending on various | |
7201 | * factors. | |
7202 | * | |
efa27145 | 7203 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7204 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7205 | * but the ACPI tables just mention level 7. | |
7206 | */ | |
7207 | ||
f74a27d4 HMH |
7208 | enum { /* Fan control constants */ |
7209 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7210 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7211 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7212 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7213 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7214 | |
7215 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7216 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7217 | ||
7218 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7219 | }; | |
7220 | ||
7221 | enum fan_status_access_mode { | |
7222 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7223 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7224 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7225 | }; | |
7226 | ||
7227 | enum fan_control_access_mode { | |
7228 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7229 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7230 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7231 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7232 | }; | |
7233 | ||
7234 | enum fan_control_commands { | |
7235 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7236 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7237 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7238 | * and also watchdog cmd */ | |
7239 | }; | |
7240 | ||
7241 | static int fan_control_allowed; | |
7242 | ||
69ba91cb HMH |
7243 | static enum fan_status_access_mode fan_status_access_mode; |
7244 | static enum fan_control_access_mode fan_control_access_mode; | |
7245 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7246 | |
778b4d74 | 7247 | static u8 fan_control_initial_status; |
fe98a52c | 7248 | static u8 fan_control_desired_level; |
0081b162 | 7249 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7250 | static int fan_watchdog_maxinterval; |
7251 | ||
7252 | static struct mutex fan_mutex; | |
778b4d74 | 7253 | |
25c68a33 | 7254 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7255 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7256 | |
e0c7dfe7 HMH |
7257 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7258 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7259 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7260 | ); /* all others */ | |
e0c7dfe7 | 7261 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7262 | "JFNS", /* 770x-JL */ |
7263 | ); /* all others */ | |
7264 | ||
1c2ece75 HMH |
7265 | /* |
7266 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7267 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7268 | * be in auto mode (0x80). | |
7269 | * | |
7270 | * This is corrected by any write to HFSP either by the driver, or | |
7271 | * by the firmware. | |
7272 | * | |
7273 | * We assume 0x07 really means auto mode while this quirk is active, | |
7274 | * as this is far more likely than the ThinkPad being in level 7, | |
7275 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7276 | * |
7277 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7278 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7279 | */ |
7280 | ||
7d95a3d5 | 7281 | static void fan_quirk1_setup(void) |
1c2ece75 | 7282 | { |
1c2ece75 | 7283 | if (fan_control_initial_status == 0x07) { |
7d95a3d5 HMH |
7284 | printk(TPACPI_NOTICE |
7285 | "fan_init: initial fan status is unknown, " | |
7286 | "assuming it is in auto mode\n"); | |
7287 | tp_features.fan_ctrl_status_undef = 1; | |
1c2ece75 HMH |
7288 | } |
7289 | } | |
7290 | ||
7291 | static void fan_quirk1_handle(u8 *fan_status) | |
7292 | { | |
7293 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7294 | if (*fan_status != fan_control_initial_status) { | |
7295 | /* something changed the HFSP regisnter since | |
7296 | * driver init time, so it is not undefined | |
7297 | * anymore */ | |
7298 | tp_features.fan_ctrl_status_undef = 0; | |
7299 | } else { | |
7300 | /* Return most likely status. In fact, it | |
7301 | * might be the only possible status */ | |
7302 | *fan_status = TP_EC_FAN_AUTO; | |
7303 | } | |
7304 | } | |
7305 | } | |
7306 | ||
d7377247 HMH |
7307 | /* Select main fan on X60/X61, NOOP on others */ |
7308 | static bool fan_select_fan1(void) | |
7309 | { | |
7310 | if (tp_features.second_fan) { | |
7311 | u8 val; | |
7312 | ||
7313 | if (ec_read(fan_select_offset, &val) < 0) | |
7314 | return false; | |
7315 | val &= 0xFEU; | |
7316 | if (ec_write(fan_select_offset, val) < 0) | |
7317 | return false; | |
7318 | } | |
7319 | return true; | |
7320 | } | |
7321 | ||
7322 | /* Select secondary fan on X60/X61 */ | |
7323 | static bool fan_select_fan2(void) | |
7324 | { | |
7325 | u8 val; | |
7326 | ||
7327 | if (!tp_features.second_fan) | |
7328 | return false; | |
7329 | ||
7330 | if (ec_read(fan_select_offset, &val) < 0) | |
7331 | return false; | |
7332 | val |= 0x01U; | |
7333 | if (ec_write(fan_select_offset, val) < 0) | |
7334 | return false; | |
7335 | ||
7336 | return true; | |
7337 | } | |
7338 | ||
fe98a52c | 7339 | /* |
b21a15f6 | 7340 | * Call with fan_mutex held |
fe98a52c | 7341 | */ |
b21a15f6 | 7342 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7343 | { |
b21a15f6 HMH |
7344 | if ((status & |
7345 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7346 | if (status > 7) | |
7347 | fan_control_desired_level = 7; | |
7348 | else | |
7349 | fan_control_desired_level = status; | |
7350 | } | |
7351 | } | |
fe98a52c | 7352 | |
b21a15f6 HMH |
7353 | static int fan_get_status(u8 *status) |
7354 | { | |
7355 | u8 s; | |
fe98a52c | 7356 | |
b21a15f6 HMH |
7357 | /* TODO: |
7358 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7359 | |
b21a15f6 HMH |
7360 | switch (fan_status_access_mode) { |
7361 | case TPACPI_FAN_RD_ACPI_GFAN: | |
7362 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 7363 | |
b21a15f6 HMH |
7364 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
7365 | return -EIO; | |
fe98a52c | 7366 | |
b21a15f6 HMH |
7367 | if (likely(status)) |
7368 | *status = s & 0x07; | |
fe98a52c | 7369 | |
b21a15f6 HMH |
7370 | break; |
7371 | ||
7372 | case TPACPI_FAN_RD_TPEC: | |
7373 | /* all except 570, 600e/x, 770e, 770x */ | |
7374 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7375 | return -EIO; | |
7376 | ||
1c2ece75 | 7377 | if (likely(status)) { |
b21a15f6 | 7378 | *status = s; |
1c2ece75 HMH |
7379 | fan_quirk1_handle(status); |
7380 | } | |
fe98a52c | 7381 | |
fe98a52c | 7382 | break; |
b21a15f6 | 7383 | |
fe98a52c | 7384 | default: |
b21a15f6 | 7385 | return -ENXIO; |
fe98a52c HMH |
7386 | } |
7387 | ||
b21a15f6 HMH |
7388 | return 0; |
7389 | } | |
fe98a52c | 7390 | |
b21a15f6 HMH |
7391 | static int fan_get_status_safe(u8 *status) |
7392 | { | |
7393 | int rc; | |
7394 | u8 s; | |
fe98a52c | 7395 | |
7646ea88 | 7396 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7397 | return -ERESTARTSYS; |
7398 | rc = fan_get_status(&s); | |
7399 | if (!rc) | |
7400 | fan_update_desired_level(s); | |
7401 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7402 | |
b21a15f6 HMH |
7403 | if (status) |
7404 | *status = s; | |
fe98a52c | 7405 | |
b21a15f6 HMH |
7406 | return rc; |
7407 | } | |
7408 | ||
7409 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7410 | { |
b21a15f6 | 7411 | u8 hi, lo; |
fe98a52c | 7412 | |
b21a15f6 HMH |
7413 | switch (fan_status_access_mode) { |
7414 | case TPACPI_FAN_RD_TPEC: | |
7415 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7416 | if (unlikely(!fan_select_fan1())) |
7417 | return -EIO; | |
b21a15f6 HMH |
7418 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7419 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7420 | return -EIO; | |
fe98a52c | 7421 | |
b21a15f6 HMH |
7422 | if (likely(speed)) |
7423 | *speed = (hi << 8) | lo; | |
fe98a52c | 7424 | |
b21a15f6 | 7425 | break; |
fe98a52c | 7426 | |
b21a15f6 HMH |
7427 | default: |
7428 | return -ENXIO; | |
7429 | } | |
fe98a52c | 7430 | |
b21a15f6 | 7431 | return 0; |
fe98a52c HMH |
7432 | } |
7433 | ||
d7377247 HMH |
7434 | static int fan2_get_speed(unsigned int *speed) |
7435 | { | |
7436 | u8 hi, lo; | |
7437 | bool rc; | |
7438 | ||
7439 | switch (fan_status_access_mode) { | |
7440 | case TPACPI_FAN_RD_TPEC: | |
7441 | /* all except 570, 600e/x, 770e, 770x */ | |
7442 | if (unlikely(!fan_select_fan2())) | |
7443 | return -EIO; | |
7444 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7445 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7446 | fan_select_fan1(); /* play it safe */ | |
7447 | if (rc) | |
7448 | return -EIO; | |
7449 | ||
7450 | if (likely(speed)) | |
7451 | *speed = (hi << 8) | lo; | |
7452 | ||
7453 | break; | |
7454 | ||
7455 | default: | |
7456 | return -ENXIO; | |
7457 | } | |
7458 | ||
7459 | return 0; | |
7460 | } | |
7461 | ||
b21a15f6 | 7462 | static int fan_set_level(int level) |
fe98a52c | 7463 | { |
b21a15f6 HMH |
7464 | if (!fan_control_allowed) |
7465 | return -EPERM; | |
fe98a52c | 7466 | |
b21a15f6 HMH |
7467 | switch (fan_control_access_mode) { |
7468 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7469 | if (level >= 0 && level <= 7) { | |
7470 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7471 | return -EIO; | |
7472 | } else | |
7473 | return -EINVAL; | |
7474 | break; | |
fe98a52c | 7475 | |
b21a15f6 HMH |
7476 | case TPACPI_FAN_WR_ACPI_FANS: |
7477 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7478 | if (!(level & TP_EC_FAN_AUTO) && |
7479 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7480 | ((level < 0) || (level > 7))) |
7481 | return -EINVAL; | |
fe98a52c | 7482 | |
b21a15f6 HMH |
7483 | /* safety net should the EC not support AUTO |
7484 | * or FULLSPEED mode bits and just ignore them */ | |
7485 | if (level & TP_EC_FAN_FULLSPEED) | |
7486 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7487 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7488 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7489 | |
b21a15f6 HMH |
7490 | if (!acpi_ec_write(fan_status_offset, level)) |
7491 | return -EIO; | |
7492 | else | |
7493 | tp_features.fan_ctrl_status_undef = 0; | |
7494 | break; | |
fe98a52c | 7495 | |
b21a15f6 HMH |
7496 | default: |
7497 | return -ENXIO; | |
7498 | } | |
74a60c0f HMH |
7499 | |
7500 | vdbg_printk(TPACPI_DBG_FAN, | |
7501 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7502 | return 0; |
fe98a52c HMH |
7503 | } |
7504 | ||
b21a15f6 | 7505 | static int fan_set_level_safe(int level) |
fe98a52c | 7506 | { |
b21a15f6 | 7507 | int rc; |
fe98a52c | 7508 | |
b21a15f6 HMH |
7509 | if (!fan_control_allowed) |
7510 | return -EPERM; | |
fe98a52c | 7511 | |
7646ea88 | 7512 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7513 | return -ERESTARTSYS; |
fe98a52c | 7514 | |
b21a15f6 HMH |
7515 | if (level == TPACPI_FAN_LAST_LEVEL) |
7516 | level = fan_control_desired_level; | |
fe98a52c | 7517 | |
b21a15f6 HMH |
7518 | rc = fan_set_level(level); |
7519 | if (!rc) | |
7520 | fan_update_desired_level(level); | |
7521 | ||
7522 | mutex_unlock(&fan_mutex); | |
7523 | return rc; | |
fe98a52c HMH |
7524 | } |
7525 | ||
b21a15f6 | 7526 | static int fan_set_enable(void) |
fe98a52c | 7527 | { |
b21a15f6 HMH |
7528 | u8 s; |
7529 | int rc; | |
fe98a52c | 7530 | |
ecf2a80a HMH |
7531 | if (!fan_control_allowed) |
7532 | return -EPERM; | |
7533 | ||
7646ea88 | 7534 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7535 | return -ERESTARTSYS; |
fe98a52c | 7536 | |
b21a15f6 HMH |
7537 | switch (fan_control_access_mode) { |
7538 | case TPACPI_FAN_WR_ACPI_FANS: | |
7539 | case TPACPI_FAN_WR_TPEC: | |
7540 | rc = fan_get_status(&s); | |
7541 | if (rc < 0) | |
7542 | break; | |
fe98a52c | 7543 | |
b21a15f6 HMH |
7544 | /* Don't go out of emergency fan mode */ |
7545 | if (s != 7) { | |
7546 | s &= 0x07; | |
7547 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7548 | } | |
fe98a52c | 7549 | |
b21a15f6 HMH |
7550 | if (!acpi_ec_write(fan_status_offset, s)) |
7551 | rc = -EIO; | |
7552 | else { | |
7553 | tp_features.fan_ctrl_status_undef = 0; | |
7554 | rc = 0; | |
7555 | } | |
7556 | break; | |
fe98a52c | 7557 | |
b21a15f6 HMH |
7558 | case TPACPI_FAN_WR_ACPI_SFAN: |
7559 | rc = fan_get_status(&s); | |
7560 | if (rc < 0) | |
7561 | break; | |
fe98a52c | 7562 | |
b21a15f6 | 7563 | s &= 0x07; |
fe98a52c | 7564 | |
b21a15f6 HMH |
7565 | /* Set fan to at least level 4 */ |
7566 | s |= 4; | |
fe08bc4b | 7567 | |
b21a15f6 | 7568 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7569 | rc = -EIO; |
b21a15f6 HMH |
7570 | else |
7571 | rc = 0; | |
7572 | break; | |
78f81cc4 | 7573 | |
b21a15f6 HMH |
7574 | default: |
7575 | rc = -ENXIO; | |
7576 | } | |
5fba344c | 7577 | |
b21a15f6 | 7578 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7579 | |
7580 | if (!rc) | |
7581 | vdbg_printk(TPACPI_DBG_FAN, | |
7582 | "fan control: set fan control register to 0x%02x\n", | |
7583 | s); | |
b21a15f6 | 7584 | return rc; |
69ba91cb | 7585 | } |
78f81cc4 | 7586 | |
b21a15f6 | 7587 | static int fan_set_disable(void) |
78f81cc4 | 7588 | { |
b21a15f6 | 7589 | int rc; |
c52f0aa5 | 7590 | |
b21a15f6 HMH |
7591 | if (!fan_control_allowed) |
7592 | return -EPERM; | |
78f81cc4 | 7593 | |
7646ea88 | 7594 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7595 | return -ERESTARTSYS; |
3ef8a609 | 7596 | |
b21a15f6 HMH |
7597 | rc = 0; |
7598 | switch (fan_control_access_mode) { | |
7599 | case TPACPI_FAN_WR_ACPI_FANS: | |
7600 | case TPACPI_FAN_WR_TPEC: | |
7601 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7602 | rc = -EIO; | |
7603 | else { | |
7604 | fan_control_desired_level = 0; | |
7605 | tp_features.fan_ctrl_status_undef = 0; | |
7606 | } | |
3ef8a609 HMH |
7607 | break; |
7608 | ||
b21a15f6 HMH |
7609 | case TPACPI_FAN_WR_ACPI_SFAN: |
7610 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7611 | rc = -EIO; | |
7612 | else | |
7613 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7614 | break; |
7615 | ||
7616 | default: | |
b21a15f6 | 7617 | rc = -ENXIO; |
78f81cc4 BD |
7618 | } |
7619 | ||
74a60c0f HMH |
7620 | if (!rc) |
7621 | vdbg_printk(TPACPI_DBG_FAN, | |
7622 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7623 | |
fe98a52c | 7624 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7625 | return rc; |
7626 | } | |
7627 | ||
b21a15f6 | 7628 | static int fan_set_speed(int speed) |
c52f0aa5 | 7629 | { |
b21a15f6 | 7630 | int rc; |
c52f0aa5 | 7631 | |
b21a15f6 HMH |
7632 | if (!fan_control_allowed) |
7633 | return -EPERM; | |
3ef8a609 | 7634 | |
7646ea88 | 7635 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7636 | return -ERESTARTSYS; |
c52f0aa5 | 7637 | |
b21a15f6 HMH |
7638 | rc = 0; |
7639 | switch (fan_control_access_mode) { | |
7640 | case TPACPI_FAN_WR_ACPI_FANS: | |
7641 | if (speed >= 0 && speed <= 65535) { | |
7642 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
7643 | speed, speed, speed)) | |
7644 | rc = -EIO; | |
7645 | } else | |
7646 | rc = -EINVAL; | |
c52f0aa5 HMH |
7647 | break; |
7648 | ||
7649 | default: | |
b21a15f6 | 7650 | rc = -ENXIO; |
c52f0aa5 HMH |
7651 | } |
7652 | ||
b21a15f6 HMH |
7653 | mutex_unlock(&fan_mutex); |
7654 | return rc; | |
16663a87 HMH |
7655 | } |
7656 | ||
7657 | static void fan_watchdog_reset(void) | |
7658 | { | |
94954cc6 | 7659 | static int fan_watchdog_active; |
16663a87 | 7660 | |
4985cd0a HMH |
7661 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
7662 | return; | |
7663 | ||
16663a87 HMH |
7664 | if (fan_watchdog_active) |
7665 | cancel_delayed_work(&fan_watchdog_task); | |
7666 | ||
8fef502e HMH |
7667 | if (fan_watchdog_maxinterval > 0 && |
7668 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 7669 | fan_watchdog_active = 1; |
e0e3c061 | 7670 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
7671 | msecs_to_jiffies(fan_watchdog_maxinterval |
7672 | * 1000))) { | |
35ff8b9f | 7673 | printk(TPACPI_ERR |
e0e3c061 | 7674 | "failed to queue the fan watchdog, " |
16663a87 HMH |
7675 | "watchdog will not trigger\n"); |
7676 | } | |
7677 | } else | |
7678 | fan_watchdog_active = 0; | |
7679 | } | |
7680 | ||
b21a15f6 | 7681 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 7682 | { |
b21a15f6 | 7683 | int rc; |
18ad7996 | 7684 | |
b21a15f6 HMH |
7685 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
7686 | return; | |
a12095c2 | 7687 | |
e0c7dfe7 | 7688 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
7689 | rc = fan_set_enable(); |
7690 | if (rc < 0) { | |
e0c7dfe7 | 7691 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
7692 | "will try again later...\n", -rc); |
7693 | /* reschedule for later */ | |
7694 | fan_watchdog_reset(); | |
7695 | } | |
7696 | } | |
eaa7571b | 7697 | |
b21a15f6 HMH |
7698 | /* |
7699 | * SYSFS fan layout: hwmon compatible (device) | |
7700 | * | |
7701 | * pwm*_enable: | |
7702 | * 0: "disengaged" mode | |
7703 | * 1: manual mode | |
7704 | * 2: native EC "auto" mode (recommended, hardware default) | |
7705 | * | |
7706 | * pwm*: set speed in manual mode, ignored otherwise. | |
7707 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
7708 | * interpolation. | |
7709 | * | |
7710 | * fan*_input: tachometer reading, RPM | |
7711 | * | |
7712 | * | |
7713 | * SYSFS fan layout: extensions | |
7714 | * | |
7715 | * fan_watchdog (driver): | |
7716 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
7717 | */ | |
7718 | ||
7719 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
7720 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
7721 | struct device_attribute *attr, | |
7722 | char *buf) | |
7723 | { | |
7724 | int res, mode; | |
7725 | u8 status; | |
7726 | ||
7727 | res = fan_get_status_safe(&status); | |
7728 | if (res) | |
7729 | return res; | |
7730 | ||
b21a15f6 HMH |
7731 | if (status & TP_EC_FAN_FULLSPEED) { |
7732 | mode = 0; | |
7733 | } else if (status & TP_EC_FAN_AUTO) { | |
7734 | mode = 2; | |
7735 | } else | |
7736 | mode = 1; | |
7737 | ||
7738 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
7739 | } | |
a12095c2 | 7740 | |
b21a15f6 HMH |
7741 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
7742 | struct device_attribute *attr, | |
7743 | const char *buf, size_t count) | |
7744 | { | |
7745 | unsigned long t; | |
7746 | int res, level; | |
7747 | ||
7748 | if (parse_strtoul(buf, 2, &t)) | |
7749 | return -EINVAL; | |
7750 | ||
74a60c0f HMH |
7751 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
7752 | "set fan mode to %lu\n", t); | |
7753 | ||
b21a15f6 HMH |
7754 | switch (t) { |
7755 | case 0: | |
7756 | level = TP_EC_FAN_FULLSPEED; | |
7757 | break; | |
7758 | case 1: | |
7759 | level = TPACPI_FAN_LAST_LEVEL; | |
7760 | break; | |
7761 | case 2: | |
7762 | level = TP_EC_FAN_AUTO; | |
7763 | break; | |
7764 | case 3: | |
7765 | /* reserved for software-controlled auto mode */ | |
7766 | return -ENOSYS; | |
18ad7996 | 7767 | default: |
b21a15f6 | 7768 | return -EINVAL; |
18ad7996 | 7769 | } |
b21a15f6 HMH |
7770 | |
7771 | res = fan_set_level_safe(level); | |
7772 | if (res == -ENXIO) | |
7773 | return -EINVAL; | |
7774 | else if (res < 0) | |
7775 | return res; | |
7776 | ||
7777 | fan_watchdog_reset(); | |
7778 | ||
7779 | return count; | |
18ad7996 HMH |
7780 | } |
7781 | ||
b21a15f6 HMH |
7782 | static struct device_attribute dev_attr_fan_pwm1_enable = |
7783 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
7784 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
7785 | ||
7786 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
7787 | static ssize_t fan_pwm1_show(struct device *dev, | |
7788 | struct device_attribute *attr, | |
7789 | char *buf) | |
fe98a52c | 7790 | { |
b21a15f6 HMH |
7791 | int res; |
7792 | u8 status; | |
fe98a52c | 7793 | |
b21a15f6 HMH |
7794 | res = fan_get_status_safe(&status); |
7795 | if (res) | |
7796 | return res; | |
ecf2a80a | 7797 | |
b21a15f6 HMH |
7798 | if ((status & |
7799 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
7800 | status = fan_control_desired_level; | |
fe98a52c | 7801 | |
b21a15f6 HMH |
7802 | if (status > 7) |
7803 | status = 7; | |
fe98a52c | 7804 | |
b21a15f6 | 7805 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
7806 | } |
7807 | ||
b21a15f6 HMH |
7808 | static ssize_t fan_pwm1_store(struct device *dev, |
7809 | struct device_attribute *attr, | |
7810 | const char *buf, size_t count) | |
18ad7996 | 7811 | { |
b21a15f6 | 7812 | unsigned long s; |
1c6a334e | 7813 | int rc; |
b21a15f6 | 7814 | u8 status, newlevel; |
1c6a334e | 7815 | |
b21a15f6 HMH |
7816 | if (parse_strtoul(buf, 255, &s)) |
7817 | return -EINVAL; | |
7818 | ||
74a60c0f HMH |
7819 | tpacpi_disclose_usertask("hwmon pwm1", |
7820 | "set fan speed to %lu\n", s); | |
7821 | ||
b21a15f6 HMH |
7822 | /* scale down from 0-255 to 0-7 */ |
7823 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 7824 | |
7646ea88 | 7825 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 7826 | return -ERESTARTSYS; |
40ca9fdf | 7827 | |
b21a15f6 HMH |
7828 | rc = fan_get_status(&status); |
7829 | if (!rc && (status & | |
7830 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7831 | rc = fan_set_level(newlevel); | |
7832 | if (rc == -ENXIO) | |
7833 | rc = -EINVAL; | |
7834 | else if (!rc) { | |
7835 | fan_update_desired_level(newlevel); | |
7836 | fan_watchdog_reset(); | |
eaa7571b | 7837 | } |
b21a15f6 | 7838 | } |
1c6a334e | 7839 | |
b21a15f6 HMH |
7840 | mutex_unlock(&fan_mutex); |
7841 | return (rc)? rc : count; | |
7842 | } | |
1c6a334e | 7843 | |
b21a15f6 HMH |
7844 | static struct device_attribute dev_attr_fan_pwm1 = |
7845 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
7846 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 7847 | |
b21a15f6 HMH |
7848 | /* sysfs fan fan1_input ------------------------------------------------ */ |
7849 | static ssize_t fan_fan1_input_show(struct device *dev, | |
7850 | struct device_attribute *attr, | |
7851 | char *buf) | |
7852 | { | |
7853 | int res; | |
7854 | unsigned int speed; | |
1c6a334e | 7855 | |
b21a15f6 HMH |
7856 | res = fan_get_speed(&speed); |
7857 | if (res < 0) | |
7858 | return res; | |
1c6a334e | 7859 | |
b21a15f6 HMH |
7860 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
7861 | } | |
18ad7996 | 7862 | |
b21a15f6 HMH |
7863 | static struct device_attribute dev_attr_fan_fan1_input = |
7864 | __ATTR(fan1_input, S_IRUGO, | |
7865 | fan_fan1_input_show, NULL); | |
40ca9fdf | 7866 | |
d7377247 HMH |
7867 | /* sysfs fan fan2_input ------------------------------------------------ */ |
7868 | static ssize_t fan_fan2_input_show(struct device *dev, | |
7869 | struct device_attribute *attr, | |
7870 | char *buf) | |
7871 | { | |
7872 | int res; | |
7873 | unsigned int speed; | |
7874 | ||
7875 | res = fan2_get_speed(&speed); | |
7876 | if (res < 0) | |
7877 | return res; | |
7878 | ||
7879 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
7880 | } | |
7881 | ||
7882 | static struct device_attribute dev_attr_fan_fan2_input = | |
7883 | __ATTR(fan2_input, S_IRUGO, | |
7884 | fan_fan2_input_show, NULL); | |
7885 | ||
b21a15f6 HMH |
7886 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
7887 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
7888 | char *buf) | |
7889 | { | |
7890 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
7891 | } |
7892 | ||
b21a15f6 HMH |
7893 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
7894 | const char *buf, size_t count) | |
18ad7996 | 7895 | { |
b21a15f6 HMH |
7896 | unsigned long t; |
7897 | ||
7898 | if (parse_strtoul(buf, 120, &t)) | |
7899 | return -EINVAL; | |
40ca9fdf | 7900 | |
ecf2a80a HMH |
7901 | if (!fan_control_allowed) |
7902 | return -EPERM; | |
7903 | ||
b21a15f6 HMH |
7904 | fan_watchdog_maxinterval = t; |
7905 | fan_watchdog_reset(); | |
40ca9fdf | 7906 | |
74a60c0f HMH |
7907 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
7908 | ||
b21a15f6 HMH |
7909 | return count; |
7910 | } | |
7911 | ||
7912 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
7913 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
7914 | ||
7915 | /* --------------------------------------------------------------------- */ | |
7916 | static struct attribute *fan_attributes[] = { | |
7917 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
7918 | &dev_attr_fan_fan1_input.attr, | |
d7377247 | 7919 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
7920 | NULL |
7921 | }; | |
7922 | ||
7923 | static const struct attribute_group fan_attr_group = { | |
7924 | .attrs = fan_attributes, | |
7925 | }; | |
7926 | ||
d7377247 HMH |
7927 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
7928 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
7929 | |
7930 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
7931 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
7932 | .bios = TPACPI_MATCH_ANY, \ | |
7933 | .ec = TPID(__id1, __id2), \ | |
7934 | .quirks = __quirks } | |
7935 | ||
d7377247 HMH |
7936 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
7937 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
7938 | .bios = TPACPI_MATCH_ANY, \ | |
7939 | .ec = TPID(__id1, __id2), \ | |
7940 | .quirks = __quirks } | |
7941 | ||
7d95a3d5 HMH |
7942 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
7943 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
7944 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
7945 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
7946 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 7947 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
7948 | }; |
7949 | ||
d7377247 | 7950 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
7951 | #undef TPACPI_FAN_QI |
7952 | ||
b21a15f6 HMH |
7953 | static int __init fan_init(struct ibm_init_struct *iibm) |
7954 | { | |
7955 | int rc; | |
7d95a3d5 | 7956 | unsigned long quirks; |
b21a15f6 | 7957 | |
74a60c0f HMH |
7958 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
7959 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
7960 | |
7961 | mutex_init(&fan_mutex); | |
7962 | fan_status_access_mode = TPACPI_FAN_NONE; | |
7963 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
7964 | fan_control_commands = 0; | |
7965 | fan_watchdog_maxinterval = 0; | |
7966 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 7967 | tp_features.second_fan = 0; |
b21a15f6 HMH |
7968 | fan_control_desired_level = 7; |
7969 | ||
e0c7dfe7 HMH |
7970 | TPACPI_ACPIHANDLE_INIT(fans); |
7971 | TPACPI_ACPIHANDLE_INIT(gfan); | |
7972 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 | 7973 | |
7d95a3d5 HMH |
7974 | quirks = tpacpi_check_quirks(fan_quirk_table, |
7975 | ARRAY_SIZE(fan_quirk_table)); | |
7976 | ||
b21a15f6 HMH |
7977 | if (gfan_handle) { |
7978 | /* 570, 600e/x, 770e, 770x */ | |
7979 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
7980 | } else { | |
7981 | /* all other ThinkPads: note that even old-style | |
7982 | * ThinkPad ECs supports the fan control register */ | |
7983 | if (likely(acpi_ec_read(fan_status_offset, | |
7984 | &fan_control_initial_status))) { | |
7985 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
7986 | if (quirks & TPACPI_FAN_Q1) |
7987 | fan_quirk1_setup(); | |
d7377247 HMH |
7988 | if (quirks & TPACPI_FAN_2FAN) { |
7989 | tp_features.second_fan = 1; | |
7990 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
7991 | "secondary fan support enabled\n"); | |
7992 | } | |
b21a15f6 | 7993 | } else { |
e0c7dfe7 | 7994 | printk(TPACPI_ERR |
b21a15f6 HMH |
7995 | "ThinkPad ACPI EC access misbehaving, " |
7996 | "fan status and control unavailable\n"); | |
7997 | return 1; | |
7998 | } | |
7999 | } | |
8000 | ||
8001 | if (sfan_handle) { | |
8002 | /* 570, 770x-JL */ | |
8003 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8004 | fan_control_commands |= | |
8005 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8006 | } else { | |
8007 | if (!gfan_handle) { | |
8008 | /* gfan without sfan means no fan control */ | |
8009 | /* all other models implement TP EC 0x2f control */ | |
8010 | ||
8011 | if (fans_handle) { | |
8012 | /* X31, X40, X41 */ | |
8013 | fan_control_access_mode = | |
8014 | TPACPI_FAN_WR_ACPI_FANS; | |
8015 | fan_control_commands |= | |
8016 | TPACPI_FAN_CMD_SPEED | | |
8017 | TPACPI_FAN_CMD_LEVEL | | |
8018 | TPACPI_FAN_CMD_ENABLE; | |
8019 | } else { | |
8020 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8021 | fan_control_commands |= | |
8022 | TPACPI_FAN_CMD_LEVEL | | |
8023 | TPACPI_FAN_CMD_ENABLE; | |
8024 | } | |
fe98a52c | 8025 | } |
b21a15f6 | 8026 | } |
18ad7996 | 8027 | |
74a60c0f HMH |
8028 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8029 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8030 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8031 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8032 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8033 | |
b21a15f6 HMH |
8034 | /* fan control master switch */ |
8035 | if (!fan_control_allowed) { | |
8036 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8037 | fan_control_commands = 0; | |
74a60c0f | 8038 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8039 | "fan control features disabled by parameter\n"); |
18ad7996 | 8040 | } |
40ca9fdf | 8041 | |
b21a15f6 HMH |
8042 | /* update fan_control_desired_level */ |
8043 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8044 | fan_get_status_safe(NULL); | |
fe98a52c | 8045 | |
b21a15f6 HMH |
8046 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8047 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8048 | if (tp_features.second_fan) { |
8049 | /* attach second fan tachometer */ | |
8050 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
8051 | &dev_attr_fan_fan2_input.attr; | |
8052 | } | |
b21a15f6 HMH |
8053 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8054 | &fan_attr_group); | |
b21a15f6 HMH |
8055 | if (rc < 0) |
8056 | return rc; | |
9c0a76e1 HMH |
8057 | |
8058 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8059 | &driver_attr_fan_watchdog); | |
8060 | if (rc < 0) { | |
8061 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8062 | &fan_attr_group); | |
8063 | return rc; | |
8064 | } | |
b21a15f6 HMH |
8065 | return 0; |
8066 | } else | |
8067 | return 1; | |
56b6aeb0 HMH |
8068 | } |
8069 | ||
b21a15f6 | 8070 | static void fan_exit(void) |
56b6aeb0 | 8071 | { |
74a60c0f | 8072 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8073 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8074 | |
b21a15f6 HMH |
8075 | /* FIXME: can we really do this unconditionally? */ |
8076 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8077 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8078 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8079 | |
b21a15f6 | 8080 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8081 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8082 | } |
8083 | ||
75700e53 HMH |
8084 | static void fan_suspend(pm_message_t state) |
8085 | { | |
0081b162 HMH |
8086 | int rc; |
8087 | ||
75700e53 HMH |
8088 | if (!fan_control_allowed) |
8089 | return; | |
8090 | ||
8091 | /* Store fan status in cache */ | |
0081b162 HMH |
8092 | fan_control_resume_level = 0; |
8093 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8094 | if (rc < 0) | |
8095 | printk(TPACPI_NOTICE | |
8096 | "failed to read fan level for later " | |
8097 | "restore during resume: %d\n", rc); | |
8098 | ||
8099 | /* if it is undefined, don't attempt to restore it. | |
8100 | * KEEP THIS LAST */ | |
75700e53 | 8101 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8102 | fan_control_resume_level = 0; |
75700e53 HMH |
8103 | } |
8104 | ||
8105 | static void fan_resume(void) | |
8106 | { | |
75700e53 HMH |
8107 | u8 current_level = 7; |
8108 | bool do_set = false; | |
0081b162 | 8109 | int rc; |
75700e53 HMH |
8110 | |
8111 | /* DSDT *always* updates status on resume */ | |
8112 | tp_features.fan_ctrl_status_undef = 0; | |
8113 | ||
75700e53 | 8114 | if (!fan_control_allowed || |
0081b162 | 8115 | !fan_control_resume_level || |
75700e53 HMH |
8116 | (fan_get_status_safe(¤t_level) < 0)) |
8117 | return; | |
8118 | ||
8119 | switch (fan_control_access_mode) { | |
8120 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8121 | /* never decrease fan level */ |
8122 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8123 | break; |
8124 | case TPACPI_FAN_WR_ACPI_FANS: | |
8125 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8126 | /* never decrease fan level, scale is: |
8127 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8128 | * | |
8129 | * We expect the firmware to set either 7 or AUTO, but we | |
8130 | * handle FULLSPEED out of paranoia. | |
8131 | * | |
8132 | * So, we can safely only restore FULLSPEED or 7, anything | |
8133 | * else could slow the fan. Restoring AUTO is useless, at | |
8134 | * best that's exactly what the DSDT already set (it is the | |
8135 | * slower it uses). | |
8136 | * | |
8137 | * Always keep in mind that the DSDT *will* have set the | |
8138 | * fans to what the vendor supposes is the best level. We | |
8139 | * muck with it only to speed the fan up. | |
8140 | */ | |
8141 | if (fan_control_resume_level != 7 && | |
8142 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8143 | return; | |
8144 | else | |
8145 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8146 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8147 | break; |
8148 | default: | |
8149 | return; | |
8150 | } | |
8151 | if (do_set) { | |
8152 | printk(TPACPI_NOTICE | |
8153 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
8154 | fan_control_resume_level); |
8155 | rc = fan_set_level_safe(fan_control_resume_level); | |
8156 | if (rc < 0) | |
8157 | printk(TPACPI_NOTICE | |
8158 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
8159 | } |
8160 | } | |
8161 | ||
887965e6 | 8162 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8163 | { |
56b6aeb0 HMH |
8164 | int rc; |
8165 | u8 status; | |
8166 | unsigned int speed = 0; | |
8167 | ||
8168 | switch (fan_status_access_mode) { | |
efa27145 | 8169 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8170 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8171 | rc = fan_get_status_safe(&status); |
8172 | if (rc < 0) | |
56b6aeb0 HMH |
8173 | return rc; |
8174 | ||
887965e6 | 8175 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8176 | "level:\t\t%d\n", |
8177 | (status != 0) ? "enabled" : "disabled", status); | |
8178 | break; | |
8179 | ||
efa27145 | 8180 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8181 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8182 | rc = fan_get_status_safe(&status); |
8183 | if (rc < 0) | |
56b6aeb0 HMH |
8184 | return rc; |
8185 | ||
887965e6 | 8186 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8187 | (status != 0) ? "enabled" : "disabled"); |
8188 | ||
35ff8b9f HMH |
8189 | rc = fan_get_speed(&speed); |
8190 | if (rc < 0) | |
56b6aeb0 HMH |
8191 | return rc; |
8192 | ||
887965e6 | 8193 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8194 | |
efa27145 | 8195 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8196 | /* Disengaged mode takes precedence */ |
887965e6 | 8197 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8198 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8199 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8200 | else |
887965e6 | 8201 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8202 | break; |
8203 | ||
efa27145 | 8204 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8205 | default: |
887965e6 | 8206 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8207 | } |
8208 | ||
efa27145 | 8209 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8210 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8211 | |
8212 | switch (fan_control_access_mode) { | |
efa27145 | 8213 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8214 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8215 | break; |
8216 | ||
8217 | default: | |
887965e6 | 8218 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8219 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8220 | break; |
8221 | } | |
8222 | } | |
18ad7996 | 8223 | |
efa27145 | 8224 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8225 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8226 | "commands:\twatchdog <timeout> (<timeout> " |
8227 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8228 | |
efa27145 | 8229 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8230 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8231 | " (<speed> is 0-65535)\n"); |
8232 | ||
887965e6 | 8233 | return 0; |
78f81cc4 BD |
8234 | } |
8235 | ||
18ad7996 HMH |
8236 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8237 | { | |
8238 | int level; | |
8239 | ||
a12095c2 | 8240 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8241 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8242 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8243 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8244 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8245 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8246 | return 0; |
8247 | ||
35ff8b9f HMH |
8248 | *rc = fan_set_level_safe(level); |
8249 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8250 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 | 8251 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8252 | else if (!*rc) |
8253 | tpacpi_disclose_usertask("procfs fan", | |
8254 | "set level to %d\n", level); | |
18ad7996 HMH |
8255 | |
8256 | return 1; | |
8257 | } | |
8258 | ||
8259 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8260 | { | |
8261 | if (strlencmp(cmd, "enable") != 0) | |
8262 | return 0; | |
8263 | ||
35ff8b9f HMH |
8264 | *rc = fan_set_enable(); |
8265 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8266 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 | 8267 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8268 | else if (!*rc) |
8269 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8270 | |
8271 | return 1; | |
8272 | } | |
8273 | ||
8274 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8275 | { | |
8276 | if (strlencmp(cmd, "disable") != 0) | |
8277 | return 0; | |
8278 | ||
35ff8b9f HMH |
8279 | *rc = fan_set_disable(); |
8280 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8281 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 | 8282 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8283 | else if (!*rc) |
8284 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8285 | |
8286 | return 1; | |
8287 | } | |
8288 | ||
8289 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8290 | { | |
8291 | int speed; | |
8292 | ||
a8b7a662 HMH |
8293 | /* TODO: |
8294 | * Support speed <low> <medium> <high> ? */ | |
8295 | ||
18ad7996 HMH |
8296 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8297 | return 0; | |
8298 | ||
35ff8b9f HMH |
8299 | *rc = fan_set_speed(speed); |
8300 | if (*rc == -ENXIO) | |
e0c7dfe7 | 8301 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 | 8302 | "access mode %d", fan_control_access_mode); |
74a60c0f HMH |
8303 | else if (!*rc) |
8304 | tpacpi_disclose_usertask("procfs fan", | |
8305 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8306 | |
8307 | return 1; | |
8308 | } | |
8309 | ||
16663a87 HMH |
8310 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8311 | { | |
8312 | int interval; | |
8313 | ||
8314 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8315 | return 0; | |
8316 | ||
8317 | if (interval < 0 || interval > 120) | |
8318 | *rc = -EINVAL; | |
74a60c0f | 8319 | else { |
16663a87 | 8320 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8321 | tpacpi_disclose_usertask("procfs fan", |
8322 | "set watchdog timer to %d\n", | |
8323 | interval); | |
8324 | } | |
16663a87 HMH |
8325 | |
8326 | return 1; | |
8327 | } | |
8328 | ||
18ad7996 HMH |
8329 | static int fan_write(char *buf) |
8330 | { | |
8331 | char *cmd; | |
8332 | int rc = 0; | |
8333 | ||
8334 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8335 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8336 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8337 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8338 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8339 | fan_write_cmd_disable(cmd, &rc) || |
8340 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8341 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8342 | fan_write_cmd_speed(cmd, &rc)) |
8343 | ) | |
8344 | rc = -EINVAL; | |
16663a87 HMH |
8345 | else if (!rc) |
8346 | fan_watchdog_reset(); | |
18ad7996 HMH |
8347 | } |
8348 | ||
8349 | return rc; | |
8350 | } | |
8351 | ||
a5763f22 HMH |
8352 | static struct ibm_struct fan_driver_data = { |
8353 | .name = "fan", | |
8354 | .read = fan_read, | |
8355 | .write = fan_write, | |
8356 | .exit = fan_exit, | |
75700e53 HMH |
8357 | .suspend = fan_suspend, |
8358 | .resume = fan_resume, | |
a5763f22 HMH |
8359 | }; |
8360 | ||
56b6aeb0 HMH |
8361 | /**************************************************************************** |
8362 | **************************************************************************** | |
8363 | * | |
8364 | * Infrastructure | |
8365 | * | |
8366 | **************************************************************************** | |
8367 | ****************************************************************************/ | |
8368 | ||
8b468c0c HMH |
8369 | /* |
8370 | * HKEY event callout for other subdrivers go here | |
8371 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8372 | */ | |
8373 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8374 | { | |
347a2686 HMH |
8375 | if (ibm_backlight_device) { |
8376 | switch (hkey_event) { | |
8377 | case TP_HKEY_EV_BRGHT_UP: | |
8378 | case TP_HKEY_EV_BRGHT_DOWN: | |
8379 | tpacpi_brightness_notify_change(); | |
8380 | } | |
8381 | } | |
0d204c34 HMH |
8382 | if (alsa_card) { |
8383 | switch (hkey_event) { | |
8384 | case TP_HKEY_EV_VOL_UP: | |
8385 | case TP_HKEY_EV_VOL_DOWN: | |
8386 | case TP_HKEY_EV_VOL_MUTE: | |
8387 | volume_alsa_notify_change(); | |
8388 | } | |
8389 | } | |
8b468c0c HMH |
8390 | } |
8391 | ||
8b468c0c HMH |
8392 | static void hotkey_driver_event(const unsigned int scancode) |
8393 | { | |
67bcae6e | 8394 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8395 | } |
8396 | ||
7fd40029 HMH |
8397 | /* sysfs name ---------------------------------------------------------- */ |
8398 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8399 | struct device_attribute *attr, | |
8400 | char *buf) | |
8401 | { | |
e0c7dfe7 | 8402 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8403 | } |
8404 | ||
8405 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
8406 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
8407 | ||
8408 | /* --------------------------------------------------------------------- */ | |
8409 | ||
56b6aeb0 | 8410 | /* /proc support */ |
94954cc6 | 8411 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8412 | |
56b6aeb0 HMH |
8413 | /* |
8414 | * Module and infrastructure proble, init and exit handling | |
8415 | */ | |
1da177e4 | 8416 | |
b21a15f6 HMH |
8417 | static int force_load; |
8418 | ||
fe08bc4b | 8419 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8420 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8421 | { |
a5763f22 | 8422 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8423 | |
a5763f22 | 8424 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8425 | } |
8426 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8427 | ||
b21a15f6 HMH |
8428 | static void ibm_exit(struct ibm_struct *ibm) |
8429 | { | |
8430 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8431 | ||
8432 | list_del_init(&ibm->all_drivers); | |
8433 | ||
8434 | if (ibm->flags.acpi_notify_installed) { | |
8435 | dbg_printk(TPACPI_DBG_EXIT, | |
8436 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8437 | BUG_ON(!ibm->acpi); | |
8438 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8439 | ibm->acpi->type, | |
8440 | dispatch_acpi_notify); | |
8441 | ibm->flags.acpi_notify_installed = 0; | |
8442 | ibm->flags.acpi_notify_installed = 0; | |
8443 | } | |
8444 | ||
8445 | if (ibm->flags.proc_created) { | |
8446 | dbg_printk(TPACPI_DBG_EXIT, | |
8447 | "%s: remove_proc_entry\n", ibm->name); | |
8448 | remove_proc_entry(ibm->name, proc_dir); | |
8449 | ibm->flags.proc_created = 0; | |
8450 | } | |
8451 | ||
8452 | if (ibm->flags.acpi_driver_registered) { | |
8453 | dbg_printk(TPACPI_DBG_EXIT, | |
8454 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8455 | BUG_ON(!ibm->acpi); | |
8456 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8457 | kfree(ibm->acpi->driver); | |
8458 | ibm->acpi->driver = NULL; | |
8459 | ibm->flags.acpi_driver_registered = 0; | |
8460 | } | |
8461 | ||
8462 | if (ibm->flags.init_called && ibm->exit) { | |
8463 | ibm->exit(); | |
8464 | ibm->flags.init_called = 0; | |
8465 | } | |
8466 | ||
8467 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8468 | } | |
f74a27d4 | 8469 | |
a5763f22 | 8470 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8471 | { |
8472 | int ret; | |
a5763f22 | 8473 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8474 | struct proc_dir_entry *entry; |
8475 | ||
a5763f22 HMH |
8476 | BUG_ON(ibm == NULL); |
8477 | ||
8478 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8479 | ||
92641177 | 8480 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8481 | return 0; |
8482 | ||
fe08bc4b HMH |
8483 | dbg_printk(TPACPI_DBG_INIT, |
8484 | "probing for %s\n", ibm->name); | |
8485 | ||
a5763f22 HMH |
8486 | if (iibm->init) { |
8487 | ret = iibm->init(iibm); | |
5fba344c HMH |
8488 | if (ret > 0) |
8489 | return 0; /* probe failed */ | |
8490 | if (ret) | |
1da177e4 | 8491 | return ret; |
a5763f22 | 8492 | |
92641177 | 8493 | ibm->flags.init_called = 1; |
1da177e4 LT |
8494 | } |
8495 | ||
8d376cd6 HMH |
8496 | if (ibm->acpi) { |
8497 | if (ibm->acpi->hid) { | |
8498 | ret = register_tpacpi_subdriver(ibm); | |
8499 | if (ret) | |
8500 | goto err_out; | |
8501 | } | |
5fba344c | 8502 | |
8d376cd6 HMH |
8503 | if (ibm->acpi->notify) { |
8504 | ret = setup_acpi_notify(ibm); | |
8505 | if (ret == -ENODEV) { | |
e0c7dfe7 | 8506 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
8507 | ibm->name); |
8508 | ret = 0; | |
8509 | goto err_out; | |
8510 | } | |
8511 | if (ret < 0) | |
8512 | goto err_out; | |
5fba344c | 8513 | } |
5fba344c HMH |
8514 | } |
8515 | ||
fe08bc4b HMH |
8516 | dbg_printk(TPACPI_DBG_INIT, |
8517 | "%s installed\n", ibm->name); | |
8518 | ||
78f81cc4 | 8519 | if (ibm->read) { |
b525c06c | 8520 | mode_t mode = iibm->base_procfs_mode; |
887965e6 | 8521 | |
b525c06c HMH |
8522 | if (!mode) |
8523 | mode = S_IRUGO; | |
887965e6 AD |
8524 | if (ibm->write) |
8525 | mode |= S_IWUSR; | |
8526 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
8527 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 8528 | if (!entry) { |
e0c7dfe7 | 8529 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 8530 | ibm->name); |
5fba344c HMH |
8531 | ret = -ENODEV; |
8532 | goto err_out; | |
78f81cc4 | 8533 | } |
92641177 | 8534 | ibm->flags.proc_created = 1; |
78f81cc4 | 8535 | } |
1da177e4 | 8536 | |
a5763f22 HMH |
8537 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8538 | ||
1da177e4 | 8539 | return 0; |
5fba344c HMH |
8540 | |
8541 | err_out: | |
fe08bc4b HMH |
8542 | dbg_printk(TPACPI_DBG_INIT, |
8543 | "%s: at error exit path with result %d\n", | |
8544 | ibm->name, ret); | |
8545 | ||
5fba344c HMH |
8546 | ibm_exit(ibm); |
8547 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
8548 | } |
8549 | ||
56b6aeb0 HMH |
8550 | /* Probing */ |
8551 | ||
050df107 HMH |
8552 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8553 | { | |
8554 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
8555 | } | |
8556 | ||
8557 | /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ | |
8558 | static bool __pure __init tpacpi_is_valid_fw_id(const char* const s, | |
8559 | const char t) | |
8560 | { | |
8561 | return s && strlen(s) >= 8 && | |
8562 | tpacpi_is_fw_digit(s[0]) && | |
8563 | tpacpi_is_fw_digit(s[1]) && | |
8564 | s[2] == t && s[3] == 'T' && | |
8565 | tpacpi_is_fw_digit(s[4]) && | |
8566 | tpacpi_is_fw_digit(s[5]) && | |
8567 | s[6] == 'W' && s[7] == 'W'; | |
8568 | } | |
8569 | ||
bf20e740 HMH |
8570 | /* returns 0 - probe ok, or < 0 - probe error. |
8571 | * Probe ok doesn't mean thinkpad found. | |
8572 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
8573 | static int __must_check __init get_thinkpad_model_data( | |
8574 | struct thinkpad_id_data *tp) | |
1da177e4 | 8575 | { |
1855256c | 8576 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 8577 | char ec_fw_string[18]; |
bf20e740 | 8578 | char const *s; |
1da177e4 | 8579 | |
d5a2f2f1 | 8580 | if (!tp) |
bf20e740 | 8581 | return -EINVAL; |
d5a2f2f1 HMH |
8582 | |
8583 | memset(tp, 0, sizeof(*tp)); | |
8584 | ||
8585 | if (dmi_name_in_vendors("IBM")) | |
8586 | tp->vendor = PCI_VENDOR_ID_IBM; | |
8587 | else if (dmi_name_in_vendors("LENOVO")) | |
8588 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
8589 | else | |
bf20e740 | 8590 | return 0; |
d5a2f2f1 | 8591 | |
bf20e740 HMH |
8592 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
8593 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
8594 | if (s && !tp->bios_version_str) | |
8595 | return -ENOMEM; | |
050df107 HMH |
8596 | |
8597 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
8598 | if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E')) | |
bf20e740 | 8599 | return 0; |
050df107 | 8600 | |
d5a2f2f1 HMH |
8601 | tp->bios_model = tp->bios_version_str[0] |
8602 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
8603 | tp->bios_release = (tp->bios_version_str[4] << 8) |
8604 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 8605 | |
56b6aeb0 HMH |
8606 | /* |
8607 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
8608 | * X32 or newer, all Z series; Some models must have an | |
8609 | * up-to-date BIOS or they will not be detected. | |
8610 | * | |
8611 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
8612 | */ | |
8613 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
8614 | if (sscanf(dev->name, | |
8615 | "IBM ThinkPad Embedded Controller -[%17c", | |
8616 | ec_fw_string) == 1) { | |
8617 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
8618 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
8619 | |
8620 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
8621 | if (!tp->ec_version_str) |
8622 | return -ENOMEM; | |
050df107 HMH |
8623 | |
8624 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
8625 | tp->ec_model = ec_fw_string[0] | |
8626 | | (ec_fw_string[1] << 8); | |
8627 | tp->ec_release = (ec_fw_string[4] << 8) | |
8628 | | ec_fw_string[5]; | |
8629 | } else { | |
8630 | printk(TPACPI_NOTICE | |
8631 | "ThinkPad firmware release %s " | |
8632 | "doesn't match the known patterns\n", | |
8633 | ec_fw_string); | |
8634 | printk(TPACPI_NOTICE | |
8635 | "please report this to %s\n", | |
8636 | TPACPI_MAIL); | |
8637 | } | |
d5a2f2f1 | 8638 | break; |
78f81cc4 | 8639 | } |
1da177e4 | 8640 | } |
d5a2f2f1 | 8641 | |
bf20e740 HMH |
8642 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
8643 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
8644 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
8645 | if (!tp->model_str) | |
8646 | return -ENOMEM; | |
d5a2f2f1 | 8647 | } |
8c74adbc | 8648 | |
bf20e740 HMH |
8649 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
8650 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
8651 | if (s && !tp->nummodel_str) | |
8652 | return -ENOMEM; | |
8653 | ||
8654 | return 0; | |
1da177e4 LT |
8655 | } |
8656 | ||
5fba344c HMH |
8657 | static int __init probe_for_thinkpad(void) |
8658 | { | |
8659 | int is_thinkpad; | |
8660 | ||
8661 | if (acpi_disabled) | |
8662 | return -ENODEV; | |
8663 | ||
8664 | /* | |
8665 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 8666 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 8667 | */ |
e675abaf HMH |
8668 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
8669 | (thinkpad_id.ec_model != 0) || | |
8670 | tpacpi_is_fw_known(); | |
5fba344c HMH |
8671 | |
8672 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 8673 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
8674 | if (!ec_handle) { |
8675 | if (is_thinkpad) | |
e0c7dfe7 | 8676 | printk(TPACPI_ERR |
5fba344c HMH |
8677 | "Not yet supported ThinkPad detected!\n"); |
8678 | return -ENODEV; | |
8679 | } | |
8680 | ||
0dcef77c HMH |
8681 | if (!is_thinkpad && !force_load) |
8682 | return -ENODEV; | |
8683 | ||
5fba344c HMH |
8684 | return 0; |
8685 | } | |
8686 | ||
8687 | ||
56b6aeb0 | 8688 | /* Module init, exit, parameters */ |
1da177e4 | 8689 | |
a5763f22 HMH |
8690 | static struct ibm_init_struct ibms_init[] __initdata = { |
8691 | { | |
8692 | .init = thinkpad_acpi_driver_init, | |
8693 | .data = &thinkpad_acpi_driver_data, | |
8694 | }, | |
8695 | { | |
8696 | .init = hotkey_init, | |
8697 | .data = &hotkey_driver_data, | |
8698 | }, | |
8699 | { | |
8700 | .init = bluetooth_init, | |
8701 | .data = &bluetooth_driver_data, | |
8702 | }, | |
8703 | { | |
8704 | .init = wan_init, | |
8705 | .data = &wan_driver_data, | |
8706 | }, | |
0045c0aa HMH |
8707 | { |
8708 | .init = uwb_init, | |
8709 | .data = &uwb_driver_data, | |
8710 | }, | |
d7c1d17d | 8711 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
8712 | { |
8713 | .init = video_init, | |
b525c06c | 8714 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
8715 | .data = &video_driver_data, |
8716 | }, | |
d7c1d17d | 8717 | #endif |
a5763f22 HMH |
8718 | { |
8719 | .init = light_init, | |
8720 | .data = &light_driver_data, | |
8721 | }, | |
a5763f22 HMH |
8722 | { |
8723 | .init = cmos_init, | |
8724 | .data = &cmos_driver_data, | |
8725 | }, | |
8726 | { | |
8727 | .init = led_init, | |
8728 | .data = &led_driver_data, | |
8729 | }, | |
8730 | { | |
8731 | .init = beep_init, | |
8732 | .data = &beep_driver_data, | |
8733 | }, | |
8734 | { | |
8735 | .init = thermal_init, | |
8736 | .data = &thermal_driver_data, | |
8737 | }, | |
8738 | { | |
8739 | .data = &ecdump_driver_data, | |
8740 | }, | |
8741 | { | |
8742 | .init = brightness_init, | |
8743 | .data = &brightness_driver_data, | |
8744 | }, | |
8745 | { | |
329e4e18 | 8746 | .init = volume_init, |
a5763f22 HMH |
8747 | .data = &volume_driver_data, |
8748 | }, | |
8749 | { | |
8750 | .init = fan_init, | |
8751 | .data = &fan_driver_data, | |
8752 | }, | |
8753 | }; | |
8754 | ||
3945ac36 | 8755 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
8756 | { |
8757 | unsigned int i; | |
a5763f22 | 8758 | struct ibm_struct *ibm; |
1da177e4 | 8759 | |
59f91ff1 HMH |
8760 | if (!kp || !kp->name || !val) |
8761 | return -EINVAL; | |
8762 | ||
a5763f22 HMH |
8763 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
8764 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
8765 | WARN_ON(ibm == NULL); |
8766 | ||
8767 | if (!ibm || !ibm->name) | |
8768 | continue; | |
a5763f22 HMH |
8769 | |
8770 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
8771 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 8772 | return -ENOSPC; |
a5763f22 HMH |
8773 | strcpy(ibms_init[i].param, val); |
8774 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
8775 | return 0; |
8776 | } | |
a5763f22 | 8777 | } |
1da177e4 | 8778 | |
1da177e4 LT |
8779 | return -EINVAL; |
8780 | } | |
8781 | ||
b09c7225 | 8782 | module_param(experimental, int, 0444); |
f68080f8 | 8783 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 8784 | "Enables experimental features when non-zero"); |
56b6aeb0 | 8785 | |
132ce091 | 8786 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 8787 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 8788 | |
b09c7225 | 8789 | module_param(force_load, bool, 0444); |
f68080f8 | 8790 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
8791 | "Attempts to load the driver even on a " |
8792 | "mis-identified ThinkPad when true"); | |
0dcef77c | 8793 | |
b09c7225 | 8794 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 8795 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 8796 | "Enables setting fan parameters features when true"); |
ecf2a80a | 8797 | |
b09c7225 | 8798 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 8799 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 8800 | "Selects brightness control strategy: " |
0e501834 | 8801 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 8802 | |
b09c7225 | 8803 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 8804 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 8805 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 8806 | |
b09c7225 | 8807 | module_param(hotkey_report_mode, uint, 0444); |
f68080f8 | 8808 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
8809 | "used for backwards compatibility with userspace, " |
8810 | "see documentation"); | |
ff80f137 | 8811 | |
ff850c33 | 8812 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
8813 | module_param_named(volume_mode, volume_mode, uint, 0444); |
8814 | MODULE_PARM_DESC(volume_mode, | |
8815 | "Selects volume control strategy: " | |
8816 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
8817 | ||
a112ceee HMH |
8818 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
8819 | MODULE_PARM_DESC(volume_capabilities, | |
8820 | "Selects the mixer capabilites: " | |
8821 | "0=auto, 1=volume and mute, 2=mute only"); | |
8822 | ||
c7ac6291 HMH |
8823 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
8824 | MODULE_PARM_DESC(volume_control, | |
8825 | "Enables software override for the console audio " | |
8826 | "control when true"); | |
8827 | ||
0d204c34 HMH |
8828 | /* ALSA module API parameters */ |
8829 | module_param_named(index, alsa_index, int, 0444); | |
8830 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
8831 | module_param_named(id, alsa_id, charp, 0444); | |
8832 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
8833 | module_param_named(enable, alsa_enable, bool, 0444); | |
8834 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 8835 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 8836 | |
e0c7dfe7 | 8837 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 8838 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 8839 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 8840 | "at module load, see documentation") |
1da177e4 | 8841 | |
e0c7dfe7 HMH |
8842 | TPACPI_PARAM(hotkey); |
8843 | TPACPI_PARAM(bluetooth); | |
8844 | TPACPI_PARAM(video); | |
8845 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
8846 | TPACPI_PARAM(cmos); |
8847 | TPACPI_PARAM(led); | |
8848 | TPACPI_PARAM(beep); | |
8849 | TPACPI_PARAM(ecdump); | |
8850 | TPACPI_PARAM(brightness); | |
8851 | TPACPI_PARAM(volume); | |
8852 | TPACPI_PARAM(fan); | |
78f81cc4 | 8853 | |
a73f3091 | 8854 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 8855 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
8856 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
8857 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
8858 | MODULE_PARM_DESC(wlsw_state, | |
8859 | "Initial state of the emulated WLSW switch"); | |
8860 | ||
b09c7225 | 8861 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
8862 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
8863 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
8864 | MODULE_PARM_DESC(bluetooth_state, | |
8865 | "Initial state of the emulated bluetooth switch"); | |
8866 | ||
b09c7225 | 8867 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
8868 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
8869 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
8870 | MODULE_PARM_DESC(wwan_state, | |
8871 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 8872 | |
b09c7225 | 8873 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
8874 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
8875 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
8876 | MODULE_PARM_DESC(uwb_state, | |
8877 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
8878 | #endif |
8879 | ||
b21a15f6 HMH |
8880 | static void thinkpad_acpi_module_exit(void) |
8881 | { | |
8882 | struct ibm_struct *ibm, *itmp; | |
8883 | ||
8884 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
8885 | ||
8886 | list_for_each_entry_safe_reverse(ibm, itmp, | |
8887 | &tpacpi_all_drivers, | |
8888 | all_drivers) { | |
8889 | ibm_exit(ibm); | |
8890 | } | |
8891 | ||
8892 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
8893 | ||
8894 | if (tpacpi_inputdev) { | |
8895 | if (tp_features.input_device_registered) | |
8896 | input_unregister_device(tpacpi_inputdev); | |
8897 | else | |
8898 | input_free_device(tpacpi_inputdev); | |
8899 | } | |
8900 | ||
8901 | if (tpacpi_hwmon) | |
8902 | hwmon_device_unregister(tpacpi_hwmon); | |
8903 | ||
8904 | if (tp_features.sensors_pdev_attrs_registered) | |
8905 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
8906 | &dev_attr_thinkpad_acpi_pdev_name); | |
8907 | if (tpacpi_sensors_pdev) | |
8908 | platform_device_unregister(tpacpi_sensors_pdev); | |
8909 | if (tpacpi_pdev) | |
8910 | platform_device_unregister(tpacpi_pdev); | |
8911 | ||
8912 | if (tp_features.sensors_pdrv_attrs_registered) | |
8913 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
8914 | if (tp_features.platform_drv_attrs_registered) | |
8915 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
8916 | ||
8917 | if (tp_features.sensors_pdrv_registered) | |
8918 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
8919 | ||
8920 | if (tp_features.platform_drv_registered) | |
8921 | platform_driver_unregister(&tpacpi_pdriver); | |
8922 | ||
8923 | if (proc_dir) | |
e0c7dfe7 | 8924 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 8925 | |
e0e3c061 HMH |
8926 | if (tpacpi_wq) |
8927 | destroy_workqueue(tpacpi_wq); | |
8928 | ||
b21a15f6 HMH |
8929 | kfree(thinkpad_id.bios_version_str); |
8930 | kfree(thinkpad_id.ec_version_str); | |
8931 | kfree(thinkpad_id.model_str); | |
8932 | } | |
8933 | ||
f74a27d4 | 8934 | |
1def7115 | 8935 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
8936 | { |
8937 | int ret, i; | |
8938 | ||
8fef502e HMH |
8939 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
8940 | ||
ff80f137 HMH |
8941 | /* Parameter checking */ |
8942 | if (hotkey_report_mode > 2) | |
8943 | return -EINVAL; | |
8944 | ||
54ae1501 | 8945 | /* Driver-level probe */ |
d5a2f2f1 | 8946 | |
bf20e740 HMH |
8947 | ret = get_thinkpad_model_data(&thinkpad_id); |
8948 | if (ret) { | |
8949 | printk(TPACPI_ERR | |
8950 | "unable to get DMI data: %d\n", ret); | |
8951 | thinkpad_acpi_module_exit(); | |
8952 | return ret; | |
8953 | } | |
5fba344c | 8954 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
8955 | if (ret) { |
8956 | thinkpad_acpi_module_exit(); | |
5fba344c | 8957 | return ret; |
d5a2f2f1 | 8958 | } |
1da177e4 | 8959 | |
54ae1501 | 8960 | /* Driver initialization */ |
d5a2f2f1 | 8961 | |
e0c7dfe7 HMH |
8962 | TPACPI_ACPIHANDLE_INIT(ecrd); |
8963 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 8964 | |
e0e3c061 HMH |
8965 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
8966 | if (!tpacpi_wq) { | |
8967 | thinkpad_acpi_module_exit(); | |
8968 | return -ENOMEM; | |
8969 | } | |
8970 | ||
e0c7dfe7 | 8971 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 8972 | if (!proc_dir) { |
35ff8b9f HMH |
8973 | printk(TPACPI_ERR |
8974 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 8975 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
8976 | return -ENODEV; |
8977 | } | |
78f81cc4 | 8978 | |
54ae1501 HMH |
8979 | ret = platform_driver_register(&tpacpi_pdriver); |
8980 | if (ret) { | |
35ff8b9f HMH |
8981 | printk(TPACPI_ERR |
8982 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
8983 | thinkpad_acpi_module_exit(); |
8984 | return ret; | |
8985 | } | |
ac36393d HMH |
8986 | tp_features.platform_drv_registered = 1; |
8987 | ||
7fd40029 HMH |
8988 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
8989 | if (ret) { | |
35ff8b9f HMH |
8990 | printk(TPACPI_ERR |
8991 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
8992 | thinkpad_acpi_module_exit(); |
8993 | return ret; | |
8994 | } | |
8995 | tp_features.sensors_pdrv_registered = 1; | |
8996 | ||
176750d6 | 8997 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
8998 | if (!ret) { |
8999 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9000 | ret = tpacpi_create_driver_attributes( |
9001 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9002 | } |
176750d6 | 9003 | if (ret) { |
35ff8b9f HMH |
9004 | printk(TPACPI_ERR |
9005 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
9006 | thinkpad_acpi_module_exit(); |
9007 | return ret; | |
9008 | } | |
2369cc94 | 9009 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9010 | |
54ae1501 HMH |
9011 | |
9012 | /* Device initialization */ | |
e0c7dfe7 | 9013 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9014 | NULL, 0); |
9015 | if (IS_ERR(tpacpi_pdev)) { | |
9016 | ret = PTR_ERR(tpacpi_pdev); | |
9017 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 9018 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
9019 | thinkpad_acpi_module_exit(); |
9020 | return ret; | |
9021 | } | |
7fd40029 | 9022 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9023 | TPACPI_HWMON_DRVR_NAME, |
9024 | -1, NULL, 0); | |
7fd40029 HMH |
9025 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9026 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9027 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
9028 | printk(TPACPI_ERR |
9029 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
9030 | thinkpad_acpi_module_exit(); |
9031 | return ret; | |
9032 | } | |
9033 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
9034 | &dev_attr_thinkpad_acpi_pdev_name); | |
9035 | if (ret) { | |
e0c7dfe7 | 9036 | printk(TPACPI_ERR |
35ff8b9f | 9037 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9038 | thinkpad_acpi_module_exit(); |
9039 | return ret; | |
9040 | } | |
9041 | tp_features.sensors_pdev_attrs_registered = 1; | |
9042 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9043 | if (IS_ERR(tpacpi_hwmon)) { |
9044 | ret = PTR_ERR(tpacpi_hwmon); | |
9045 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 9046 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
9047 | thinkpad_acpi_module_exit(); |
9048 | return ret; | |
9049 | } | |
8523ed6f | 9050 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9051 | tpacpi_inputdev = input_allocate_device(); |
9052 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 9053 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
9054 | thinkpad_acpi_module_exit(); |
9055 | return -ENOMEM; | |
9056 | } else { | |
9057 | /* Prepare input device, but don't register */ | |
9058 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9059 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9060 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
9061 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
9062 | thinkpad_id.vendor : | |
9063 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
9064 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9065 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9066 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9067 | } |
a5763f22 HMH |
9068 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9069 | ret = ibm_init(&ibms_init[i]); | |
9070 | if (ret >= 0 && *ibms_init[i].param) | |
9071 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9072 | if (ret < 0) { |
1def7115 | 9073 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9074 | return ret; |
9075 | } | |
9076 | } | |
b589ea4c HMH |
9077 | |
9078 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9079 | ||
7f5d1cd6 HMH |
9080 | ret = input_register_device(tpacpi_inputdev); |
9081 | if (ret < 0) { | |
e0c7dfe7 | 9082 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
9083 | thinkpad_acpi_module_exit(); |
9084 | return ret; | |
9085 | } else { | |
9086 | tp_features.input_device_registered = 1; | |
9087 | } | |
1da177e4 LT |
9088 | |
9089 | return 0; | |
9090 | } | |
9091 | ||
95e57ab2 HMH |
9092 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9093 | ||
922fe097 HMH |
9094 | /* |
9095 | * This will autoload the driver in almost every ThinkPad | |
9096 | * in widespread use. | |
9097 | * | |
9098 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9099 | * the HKEY event interface. | |
9100 | */ | |
9101 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9102 | ||
f68080f8 HMH |
9103 | /* |
9104 | * DMI matching for module autoloading | |
9105 | * | |
9106 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9107 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9108 | * | |
9109 | * Only models listed in thinkwiki will be supported, so add yours | |
9110 | * if it is not there yet. | |
9111 | */ | |
9112 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9113 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9114 | |
f68080f8 HMH |
9115 | /* Ancient thinkpad BIOSes have to be identified by |
9116 | * BIOS type or model number, and there are far less | |
9117 | * BIOS types than model numbers... */ | |
922fe097 | 9118 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9119 | |
f68f53a2 HMH |
9120 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9121 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9122 | MODULE_DESCRIPTION(TPACPI_DESC); |
9123 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9124 | MODULE_LICENSE("GPL"); |
9125 | ||
1def7115 HMH |
9126 | module_init(thinkpad_acpi_module_init); |
9127 | module_exit(thinkpad_acpi_module_exit); |