Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 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 | ||
50efd831 | 24 | #define IBM_VERSION "0.18" |
01e88f25 | 25 | #define TPACPI_SYSFS_VERSION 0x020101 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
643f12db HMH |
29 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
30 | * drivers/misc. | |
f9ff43a6 HMH |
31 | * |
32 | * 2006-11-22 0.13 new maintainer | |
33 | * changelog now lives in git commit history, and will | |
34 | * not be updated further in-file. | |
837ca6dd | 35 | * |
78f81cc4 BD |
36 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
37 | * 2005-03-17 0.11 support for 600e, 770x | |
38 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
39 | * support for 770e, G41 | |
40 | * G40 and G41 don't have a thinklight | |
41 | * temperatures no longer experimental | |
42 | * experimental brightness control | |
43 | * experimental volume control | |
44 | * experimental fan enable/disable | |
837ca6dd | 45 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
46 | * 2005-01-16 0.9 support for 570, R30, R31 |
47 | * ultrabay support on A22p, A3x | |
48 | * limit arg for cmos, led, beep, drop experimental status | |
49 | * more capable led control on A21e, A22p, T20-22, X20 | |
50 | * experimental temperatures and fan speed | |
51 | * experimental embedded controller register dump | |
52 | * mark more functions as __init, drop incorrect __exit | |
53 | * use MODULE_VERSION | |
54 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
55 | * fix parameter passing on module loading | |
56 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
57 | * thanks to Jim Radford <radford@blackbean.org> | |
58 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
59 | * thanks to Chris Wright <chrisw@osdl.org> | |
60 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
61 | * fix led control on A21e | |
62 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
63 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
64 | * proc file format changed | |
65 | * video_switch command | |
66 | * experimental cmos control | |
67 | * experimental led control | |
68 | * experimental acpi sounds | |
78f81cc4 BD |
69 | * 2004-09-16 0.4 support for module parameters |
70 | * hotkey mask can be prefixed by 0x | |
71 | * video output switching | |
72 | * video expansion control | |
73 | * ultrabay eject support | |
74 | * removed lcd brightness/on/off control, didn't work | |
75 | * 2004-08-17 0.3 support for R40 | |
76 | * lcd off, brightness control | |
77 | * thinklight on/off | |
78 | * 2004-08-14 0.2 support for T series, X20 | |
79 | * bluetooth enable/disable | |
80 | * hotkey events disabled by default | |
81 | * removed fan control, currently useless | |
82 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
83 | */ |
84 | ||
0c78039f HMH |
85 | /* ==================================================== BEGIN HEADER */ |
86 | ||
87 | #include <linux/kernel.h> | |
88 | #include <linux/module.h> | |
89 | #include <linux/init.h> | |
90 | #include <linux/types.h> | |
91 | #include <linux/string.h> | |
92 | #include <linux/list.h> | |
93 | #include <linux/mutex.h> | |
94 | #include <linux/kthread.h> | |
95 | #include <linux/freezer.h> | |
96 | #include <linux/delay.h> | |
97 | ||
98 | #include <linux/nvram.h> | |
99 | #include <linux/proc_fs.h> | |
100 | #include <linux/sysfs.h> | |
101 | #include <linux/backlight.h> | |
102 | #include <linux/fb.h> | |
103 | #include <linux/platform_device.h> | |
104 | #include <linux/hwmon.h> | |
105 | #include <linux/hwmon-sysfs.h> | |
106 | #include <linux/input.h> | |
107 | #include <asm/uaccess.h> | |
108 | ||
109 | #include <linux/dmi.h> | |
110 | #include <linux/jiffies.h> | |
111 | #include <linux/workqueue.h> | |
112 | ||
113 | #include <acpi/acpi_drivers.h> | |
114 | #include <acpi/acnamesp.h> | |
115 | ||
116 | #include <linux/pci_ids.h> | |
117 | ||
118 | /**************************************************************************** | |
119 | * Main driver | |
120 | */ | |
121 | ||
122 | #define IBM_NAME "thinkpad" | |
123 | #define IBM_DESC "ThinkPad ACPI Extras" | |
124 | #define IBM_FILE IBM_NAME "_acpi" | |
125 | #define IBM_URL "http://ibm-acpi.sf.net/" | |
126 | #define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
127 | ||
128 | #define IBM_PROC_DIR "ibm" | |
129 | #define IBM_ACPI_EVENT_PREFIX "ibm" | |
130 | #define IBM_DRVR_NAME IBM_FILE | |
131 | #define IBM_HWMON_DRVR_NAME IBM_NAME "_hwmon" | |
132 | ||
133 | #define IBM_LOG IBM_FILE ": " | |
134 | #define IBM_ERR KERN_ERR IBM_LOG | |
135 | #define IBM_NOTICE KERN_NOTICE IBM_LOG | |
136 | #define IBM_INFO KERN_INFO IBM_LOG | |
137 | #define IBM_DEBUG KERN_DEBUG IBM_LOG | |
138 | ||
139 | #define IBM_MAX_ACPI_ARGS 3 | |
140 | ||
141 | /* ThinkPad CMOS commands */ | |
142 | #define TP_CMOS_VOLUME_DOWN 0 | |
143 | #define TP_CMOS_VOLUME_UP 1 | |
144 | #define TP_CMOS_VOLUME_MUTE 2 | |
145 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
146 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
147 | ||
148 | /* NVRAM Addresses */ | |
149 | enum tp_nvram_addr { | |
150 | TP_NVRAM_ADDR_HK2 = 0x57, | |
151 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
152 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
153 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
154 | TP_NVRAM_ADDR_MIXER = 0x60, | |
155 | }; | |
156 | ||
157 | /* NVRAM bit masks */ | |
158 | enum { | |
159 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
160 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
161 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
162 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
163 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
164 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
165 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
166 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
167 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
168 | TP_NVRAM_MASK_MUTE = 0x40, | |
169 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
170 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
171 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
172 | }; | |
173 | ||
174 | #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") | |
175 | #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
176 | #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) | |
177 | ||
178 | /* Debugging */ | |
179 | #define TPACPI_DBG_ALL 0xffff | |
180 | #define TPACPI_DBG_ALL 0xffff | |
181 | #define TPACPI_DBG_INIT 0x0001 | |
182 | #define TPACPI_DBG_EXIT 0x0002 | |
183 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
184 | do { if (dbg_level & a_dbg_level) \ | |
185 | printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0) | |
186 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
187 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
188 | dbg_printk(a_dbg_level, format, ## arg) | |
189 | static const char *str_supported(int is_supported); | |
190 | #else | |
191 | #define vdbg_printk(a_dbg_level, format, arg...) | |
192 | #endif | |
193 | ||
194 | /* Input IDs */ | |
195 | #define TPACPI_HKEY_INPUT_VENDOR PCI_VENDOR_ID_IBM | |
196 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
197 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
198 | ||
199 | /* ACPI HIDs */ | |
200 | #define IBM_HKEY_HID "IBM0068" | |
201 | ||
202 | /* ACPI helpers */ | |
203 | static int __must_check acpi_evalf(acpi_handle handle, | |
204 | void *res, char *method, char *fmt, ...); | |
205 | static int __must_check acpi_ec_read(int i, u8 * p); | |
206 | static int __must_check acpi_ec_write(int i, u8 v); | |
207 | static int __must_check _sta(acpi_handle handle); | |
208 | ||
209 | /* ACPI handles */ | |
210 | static acpi_handle root_handle; /* root namespace */ | |
211 | static acpi_handle ec_handle; /* EC */ | |
212 | static acpi_handle ecrd_handle, ecwr_handle; /* 570 EC access */ | |
213 | static acpi_handle cmos_handle, hkey_handle; /* basic thinkpad handles */ | |
214 | ||
215 | static void drv_acpi_handle_init(char *name, | |
216 | acpi_handle *handle, acpi_handle parent, | |
217 | char **paths, int num_paths, char **path); | |
218 | #define IBM_ACPIHANDLE_INIT(object) \ | |
219 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
220 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) | |
221 | ||
222 | /* ThinkPad ACPI helpers */ | |
223 | static int issue_thinkpad_cmos_command(int cmos_cmd); | |
224 | ||
225 | /* procfs support */ | |
226 | static struct proc_dir_entry *proc_dir; | |
227 | ||
228 | /* procfs helpers */ | |
229 | static int dispatch_procfs_read(char *page, char **start, off_t off, | |
230 | int count, int *eof, void *data); | |
231 | static int dispatch_procfs_write(struct file *file, | |
232 | const char __user * userbuf, | |
233 | unsigned long count, void *data); | |
234 | static char *next_cmd(char **cmds); | |
235 | ||
236 | /* sysfs support */ | |
237 | struct attribute_set { | |
238 | unsigned int members, max_members; | |
239 | struct attribute_group group; | |
240 | }; | |
241 | ||
242 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
243 | const char* name); | |
244 | #define destroy_attr_set(_set) \ | |
245 | kfree(_set); | |
246 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr); | |
247 | static int add_many_to_attr_set(struct attribute_set* s, | |
248 | struct attribute **attr, | |
249 | unsigned int count); | |
250 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ | |
251 | sysfs_create_group(_kobj, &_attr_set->group) | |
252 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj); | |
253 | ||
254 | static int parse_strtoul(const char *buf, unsigned long max, | |
255 | unsigned long *value); | |
256 | ||
257 | /* Device model */ | |
258 | static struct platform_device *tpacpi_pdev; | |
259 | static struct platform_device *tpacpi_sensors_pdev; | |
260 | static struct device *tpacpi_hwmon; | |
261 | static struct platform_driver tpacpi_pdriver; | |
262 | static struct input_dev *tpacpi_inputdev; | |
263 | static int tpacpi_create_driver_attributes(struct device_driver *drv); | |
264 | static void tpacpi_remove_driver_attributes(struct device_driver *drv); | |
265 | ||
266 | /* Module */ | |
267 | static int experimental; | |
268 | static u32 dbg_level; | |
269 | static int force_load; | |
270 | static unsigned int hotkey_report_mode; | |
271 | ||
272 | static int thinkpad_acpi_module_init(void); | |
273 | static void thinkpad_acpi_module_exit(void); | |
274 | ||
275 | ||
276 | /**************************************************************************** | |
277 | * Subdrivers | |
278 | */ | |
279 | ||
280 | struct ibm_struct; | |
281 | ||
282 | struct tp_acpi_drv_struct { | |
283 | const struct acpi_device_id *hid; | |
284 | struct acpi_driver *driver; | |
285 | ||
286 | void (*notify) (struct ibm_struct *, u32); | |
287 | acpi_handle *handle; | |
288 | u32 type; | |
289 | struct acpi_device *device; | |
290 | }; | |
291 | ||
292 | struct ibm_struct { | |
293 | char *name; | |
294 | ||
295 | int (*read) (char *); | |
296 | int (*write) (char *); | |
297 | void (*exit) (void); | |
298 | void (*resume) (void); | |
299 | ||
300 | struct list_head all_drivers; | |
301 | ||
302 | struct tp_acpi_drv_struct *acpi; | |
303 | ||
304 | struct { | |
305 | u8 acpi_driver_registered:1; | |
306 | u8 acpi_notify_installed:1; | |
307 | u8 proc_created:1; | |
308 | u8 init_called:1; | |
309 | u8 experimental:1; | |
310 | } flags; | |
311 | }; | |
312 | ||
313 | struct ibm_init_struct { | |
314 | char param[32]; | |
315 | ||
316 | int (*init) (struct ibm_init_struct *); | |
317 | struct ibm_struct *data; | |
318 | }; | |
319 | ||
320 | static struct { | |
321 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
322 | u32 bay_status:1; | |
323 | u32 bay_eject:1; | |
324 | u32 bay_status2:1; | |
325 | u32 bay_eject2:1; | |
326 | #endif | |
327 | u32 bluetooth:1; | |
328 | u32 hotkey:1; | |
329 | u32 hotkey_mask:1; | |
330 | u32 hotkey_wlsw:1; | |
331 | u32 light:1; | |
332 | u32 light_status:1; | |
333 | u32 bright_16levels:1; | |
334 | u32 wan:1; | |
335 | u32 fan_ctrl_status_undef:1; | |
336 | u32 input_device_registered:1; | |
337 | u32 platform_drv_registered:1; | |
338 | u32 platform_drv_attrs_registered:1; | |
339 | u32 sensors_pdrv_registered:1; | |
340 | u32 sensors_pdrv_attrs_registered:1; | |
341 | u32 sensors_pdev_attrs_registered:1; | |
342 | u32 hotkey_poll_active:1; | |
343 | } tp_features; | |
344 | ||
345 | struct thinkpad_id_data { | |
346 | unsigned int vendor; /* ThinkPad vendor: | |
347 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
348 | ||
349 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
350 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
351 | ||
352 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
353 | u16 ec_model; | |
354 | ||
355 | char *model_str; | |
356 | }; | |
357 | ||
358 | static struct thinkpad_id_data thinkpad_id; | |
359 | ||
360 | static struct list_head tpacpi_all_drivers; | |
361 | ||
362 | static struct ibm_init_struct ibms_init[]; | |
363 | static int set_ibm_param(const char *val, struct kernel_param *kp); | |
364 | static int ibm_init(struct ibm_init_struct *iibm); | |
365 | static void ibm_exit(struct ibm_struct *ibm); | |
366 | ||
367 | ||
368 | /* | |
369 | * procfs master subdriver | |
370 | */ | |
371 | static int thinkpad_acpi_driver_init(struct ibm_init_struct *iibm); | |
372 | static int thinkpad_acpi_driver_read(char *p); | |
373 | ||
374 | ||
375 | /* | |
376 | * Bay subdriver | |
377 | */ | |
378 | ||
379 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
380 | static acpi_handle bay_handle, bay_ej_handle; | |
381 | static acpi_handle bay2_handle, bay2_ej_handle; | |
382 | ||
383 | static int bay_init(struct ibm_init_struct *iibm); | |
384 | static void bay_notify(struct ibm_struct *ibm, u32 event); | |
385 | static int bay_read(char *p); | |
386 | static int bay_write(char *buf); | |
387 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ | |
388 | ||
389 | ||
390 | /* | |
391 | * Beep subdriver | |
392 | */ | |
393 | ||
394 | static acpi_handle beep_handle; | |
395 | ||
396 | static int beep_read(char *p); | |
397 | static int beep_write(char *buf); | |
398 | ||
399 | ||
400 | /* | |
401 | * Bluetooth subdriver | |
402 | */ | |
403 | ||
404 | enum { | |
405 | /* ACPI GBDC/SBDC bits */ | |
406 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
407 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
408 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
409 | }; | |
410 | ||
411 | static int bluetooth_init(struct ibm_init_struct *iibm); | |
412 | static int bluetooth_get_radiosw(void); | |
413 | static int bluetooth_set_radiosw(int radio_on); | |
414 | static int bluetooth_read(char *p); | |
415 | static int bluetooth_write(char *buf); | |
416 | ||
417 | ||
418 | /* | |
419 | * Brightness (backlight) subdriver | |
420 | */ | |
421 | ||
422 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" | |
423 | ||
424 | static struct backlight_device *ibm_backlight_device; | |
425 | static int brightness_offset = 0x31; | |
426 | static int brightness_mode; | |
427 | static unsigned int brightness_enable; /* 0 = no, 1 = yes, 2 = auto */ | |
428 | ||
429 | static int brightness_init(struct ibm_init_struct *iibm); | |
430 | static void brightness_exit(void); | |
431 | static int brightness_get(struct backlight_device *bd); | |
432 | static int brightness_set(int value); | |
433 | static int brightness_update_status(struct backlight_device *bd); | |
434 | static int brightness_read(char *p); | |
435 | static int brightness_write(char *buf); | |
436 | ||
437 | ||
438 | /* | |
439 | * CMOS subdriver | |
440 | */ | |
441 | ||
442 | static int cmos_read(char *p); | |
443 | static int cmos_write(char *buf); | |
444 | ||
445 | ||
446 | /* | |
447 | * Dock subdriver | |
448 | */ | |
449 | ||
450 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
451 | static acpi_handle pci_handle; | |
452 | static acpi_handle dock_handle; | |
453 | ||
454 | static void dock_notify(struct ibm_struct *ibm, u32 event); | |
455 | static int dock_read(char *p); | |
456 | static int dock_write(char *buf); | |
457 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ | |
458 | ||
459 | ||
460 | /* | |
461 | * EC dump subdriver | |
462 | */ | |
463 | ||
464 | static int ecdump_read(char *p) ; | |
465 | static int ecdump_write(char *buf); | |
466 | ||
467 | ||
468 | /* | |
469 | * Fan subdriver | |
470 | */ | |
471 | ||
472 | enum { /* Fan control constants */ | |
473 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
474 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
475 | * 0x84 must be read before 0x85 */ | |
476 | ||
477 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
478 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
479 | ||
480 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
481 | }; | |
482 | ||
483 | enum fan_status_access_mode { | |
484 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
485 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
486 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
487 | }; | |
488 | ||
489 | enum fan_control_access_mode { | |
490 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
491 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
492 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
493 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
494 | }; | |
495 | ||
496 | enum fan_control_commands { | |
497 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
498 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
499 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
500 | * and also watchdog cmd */ | |
501 | }; | |
502 | ||
503 | static int fan_control_allowed; | |
504 | ||
505 | static enum fan_status_access_mode fan_status_access_mode; | |
506 | static enum fan_control_access_mode fan_control_access_mode; | |
507 | static enum fan_control_commands fan_control_commands; | |
508 | static u8 fan_control_initial_status; | |
509 | static u8 fan_control_desired_level; | |
510 | static int fan_watchdog_maxinterval; | |
511 | ||
512 | static struct mutex fan_mutex; | |
513 | ||
514 | static acpi_handle fans_handle, gfan_handle, sfan_handle; | |
515 | ||
516 | static int fan_init(struct ibm_init_struct *iibm); | |
517 | static void fan_exit(void); | |
518 | static int fan_get_status(u8 *status); | |
519 | static int fan_get_status_safe(u8 *status); | |
520 | static int fan_get_speed(unsigned int *speed); | |
521 | static void fan_update_desired_level(u8 status); | |
522 | static void fan_watchdog_fire(struct work_struct *ignored); | |
523 | static void fan_watchdog_reset(void); | |
524 | static int fan_set_level(int level); | |
525 | static int fan_set_level_safe(int level); | |
526 | static int fan_set_enable(void); | |
527 | static int fan_set_disable(void); | |
528 | static int fan_set_speed(int speed); | |
529 | static int fan_read(char *p); | |
530 | static int fan_write(char *buf); | |
531 | static int fan_write_cmd_level(const char *cmd, int *rc); | |
532 | static int fan_write_cmd_enable(const char *cmd, int *rc); | |
533 | static int fan_write_cmd_disable(const char *cmd, int *rc); | |
534 | static int fan_write_cmd_speed(const char *cmd, int *rc); | |
535 | static int fan_write_cmd_watchdog(const char *cmd, int *rc); | |
536 | ||
537 | ||
538 | /* | |
539 | * Hotkey subdriver | |
540 | */ | |
541 | ||
542 | enum { /* hot key scan codes (derived from ACPI DSDT) */ | |
543 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
544 | TP_ACPI_HOTKEYSCAN_FNF2, | |
545 | TP_ACPI_HOTKEYSCAN_FNF3, | |
546 | TP_ACPI_HOTKEYSCAN_FNF4, | |
547 | TP_ACPI_HOTKEYSCAN_FNF5, | |
548 | TP_ACPI_HOTKEYSCAN_FNF6, | |
549 | TP_ACPI_HOTKEYSCAN_FNF7, | |
550 | TP_ACPI_HOTKEYSCAN_FNF8, | |
551 | TP_ACPI_HOTKEYSCAN_FNF9, | |
552 | TP_ACPI_HOTKEYSCAN_FNF10, | |
553 | TP_ACPI_HOTKEYSCAN_FNF11, | |
554 | TP_ACPI_HOTKEYSCAN_FNF12, | |
555 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
556 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
557 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
558 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
559 | TP_ACPI_HOTKEYSCAN_FNEND, | |
560 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
561 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
562 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
563 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
564 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
565 | TP_ACPI_HOTKEYSCAN_MUTE, | |
566 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
567 | }; | |
568 | ||
569 | static int hotkey_orig_status; | |
570 | static u32 hotkey_orig_mask; | |
571 | ||
572 | static struct mutex hotkey_mutex; | |
573 | ||
574 | static int hotkey_init(struct ibm_init_struct *iibm); | |
575 | static void hotkey_exit(void); | |
576 | static void hotkey_notify(struct ibm_struct *ibm, u32 event); | |
577 | static int hotkey_read(char *p); | |
578 | static int hotkey_write(char *buf); | |
579 | ||
580 | ||
581 | /* | |
582 | * LED subdriver | |
583 | */ | |
584 | ||
585 | enum led_access_mode { | |
586 | TPACPI_LED_NONE = 0, | |
587 | TPACPI_LED_570, /* 570 */ | |
588 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
589 | TPACPI_LED_NEW, /* all others */ | |
590 | }; | |
591 | ||
592 | enum { /* For TPACPI_LED_OLD */ | |
593 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
594 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
595 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
596 | }; | |
597 | ||
598 | static enum led_access_mode led_supported; | |
599 | static acpi_handle led_handle; | |
600 | ||
601 | static int led_init(struct ibm_init_struct *iibm); | |
602 | static int led_read(char *p); | |
603 | static int led_write(char *buf); | |
604 | ||
605 | /* | |
606 | * Light (thinklight) subdriver | |
607 | */ | |
608 | ||
609 | static acpi_handle lght_handle, ledb_handle; | |
610 | ||
611 | static int light_init(struct ibm_init_struct *iibm); | |
612 | static int light_read(char *p); | |
613 | static int light_write(char *buf); | |
614 | ||
615 | ||
616 | /* | |
617 | * Thermal subdriver | |
618 | */ | |
619 | ||
620 | enum thermal_access_mode { | |
621 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
622 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
623 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
624 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
625 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
626 | }; | |
627 | ||
628 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
629 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
630 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
631 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
632 | }; | |
633 | ||
634 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
635 | struct ibm_thermal_sensors_struct { | |
636 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
637 | }; | |
638 | ||
639 | static enum thermal_access_mode thermal_read_mode; | |
640 | ||
641 | static int thermal_init(struct ibm_init_struct *iibm); | |
642 | static int thermal_get_sensor(int idx, s32 *value); | |
643 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s); | |
644 | static int thermal_read(char *p); | |
645 | ||
646 | ||
647 | /* | |
648 | * Video subdriver | |
649 | */ | |
650 | ||
651 | enum video_access_mode { | |
652 | TPACPI_VIDEO_NONE = 0, | |
653 | TPACPI_VIDEO_570, /* 570 */ | |
654 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
655 | TPACPI_VIDEO_NEW, /* all others */ | |
656 | }; | |
657 | ||
658 | enum { /* video status flags, based on VIDEO_570 */ | |
659 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
660 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
661 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
662 | }; | |
663 | ||
664 | enum { /* TPACPI_VIDEO_570 constants */ | |
665 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
666 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
667 | * video_status_flags */ | |
668 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
669 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
670 | }; | |
671 | ||
672 | static enum video_access_mode video_supported; | |
673 | static int video_orig_autosw; | |
674 | static acpi_handle vid_handle, vid2_handle; | |
675 | ||
676 | static int video_init(struct ibm_init_struct *iibm); | |
677 | static void video_exit(void); | |
678 | static int video_outputsw_get(void); | |
679 | static int video_outputsw_set(int status); | |
680 | static int video_autosw_get(void); | |
681 | static int video_autosw_set(int enable); | |
682 | static int video_outputsw_cycle(void); | |
683 | static int video_expand_toggle(void); | |
684 | static int video_read(char *p); | |
685 | static int video_write(char *buf); | |
686 | ||
687 | ||
688 | /* | |
689 | * Volume subdriver | |
690 | */ | |
691 | ||
692 | static int volume_offset = 0x30; | |
693 | ||
694 | static int volume_read(char *p); | |
695 | static int volume_write(char *buf); | |
696 | ||
697 | ||
698 | /* | |
699 | * Wan subdriver | |
700 | */ | |
701 | ||
702 | enum { | |
703 | /* ACPI GWAN/SWAN bits */ | |
704 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
705 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
706 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
707 | }; | |
708 | ||
709 | static int wan_init(struct ibm_init_struct *iibm); | |
710 | static int wan_get_radiosw(void); | |
711 | static int wan_set_radiosw(int radio_on); | |
712 | static int wan_read(char *p); | |
713 | static int wan_write(char *buf); | |
714 | ||
715 | /* ==================================================== END HEADER */ | |
1da177e4 | 716 | |
f9ff43a6 | 717 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
718 | MODULE_DESCRIPTION(IBM_DESC); |
719 | MODULE_VERSION(IBM_VERSION); | |
720 | MODULE_LICENSE("GPL"); | |
721 | ||
d903ac54 HMH |
722 | /* Please remove this in year 2009 */ |
723 | MODULE_ALIAS("ibm_acpi"); | |
724 | ||
b964b437 HMH |
725 | /* |
726 | * DMI matching for module autoloading | |
727 | * | |
728 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
729 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
730 | * | |
731 | * Only models listed in thinkwiki will be supported, so add yours | |
732 | * if it is not there yet. | |
733 | */ | |
734 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
735 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
736 | ||
737 | /* Non-ancient thinkpads */ | |
738 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
739 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
740 | ||
741 | /* Ancient thinkpad BIOSes have to be identified by | |
742 | * BIOS type or model number, and there are far less | |
743 | * BIOS types than model numbers... */ | |
744 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
745 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
746 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
747 | ||
1da177e4 LT |
748 | #define __unused __attribute__ ((unused)) |
749 | ||
8fef502e HMH |
750 | static enum { |
751 | TPACPI_LIFE_INIT = 0, | |
752 | TPACPI_LIFE_RUNNING, | |
753 | TPACPI_LIFE_EXITING, | |
754 | } tpacpi_lifecycle; | |
755 | ||
56b6aeb0 HMH |
756 | /**************************************************************************** |
757 | **************************************************************************** | |
758 | * | |
759 | * ACPI Helpers and device model | |
760 | * | |
761 | **************************************************************************** | |
762 | ****************************************************************************/ | |
763 | ||
764 | /************************************************************************* | |
765 | * ACPI basic handles | |
766 | */ | |
1da177e4 | 767 | |
94954cc6 | 768 | static acpi_handle root_handle; |
1da177e4 LT |
769 | |
770 | #define IBM_HANDLE(object, parent, paths...) \ | |
771 | static acpi_handle object##_handle; \ | |
772 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 773 | static char *object##_path; \ |
1da177e4 LT |
774 | static char *object##_paths[] = { paths } |
775 | ||
78f81cc4 BD |
776 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
777 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
778 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
779 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
780 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
781 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
782 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 783 | ); |
78f81cc4 | 784 | |
56b6aeb0 HMH |
785 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
786 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 787 | |
56b6aeb0 HMH |
788 | |
789 | /************************************************************************* | |
790 | * Misc ACPI handles | |
791 | */ | |
78f81cc4 BD |
792 | |
793 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
794 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
795 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 796 | ); /* all others */ |
78f81cc4 BD |
797 | |
798 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
799 | "^HKEY", /* R30, R31 */ | |
800 | "HKEY", /* all others */ | |
56b6aeb0 | 801 | ); /* 570 */ |
78f81cc4 | 802 | |
78f81cc4 | 803 | |
56b6aeb0 HMH |
804 | /************************************************************************* |
805 | * ACPI helpers | |
a8b7a662 HMH |
806 | */ |
807 | ||
1da177e4 LT |
808 | static int acpi_evalf(acpi_handle handle, |
809 | void *res, char *method, char *fmt, ...) | |
810 | { | |
811 | char *fmt0 = fmt; | |
78f81cc4 BD |
812 | struct acpi_object_list params; |
813 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
814 | struct acpi_buffer result, *resultp; | |
815 | union acpi_object out_obj; | |
816 | acpi_status status; | |
817 | va_list ap; | |
818 | char res_type; | |
819 | int success; | |
820 | int quiet; | |
1da177e4 LT |
821 | |
822 | if (!*fmt) { | |
823 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
824 | return 0; | |
825 | } | |
826 | ||
827 | if (*fmt == 'q') { | |
828 | quiet = 1; | |
829 | fmt++; | |
830 | } else | |
831 | quiet = 0; | |
832 | ||
833 | res_type = *(fmt++); | |
834 | ||
835 | params.count = 0; | |
836 | params.pointer = &in_objs[0]; | |
837 | ||
838 | va_start(ap, fmt); | |
839 | while (*fmt) { | |
840 | char c = *(fmt++); | |
841 | switch (c) { | |
842 | case 'd': /* int */ | |
843 | in_objs[params.count].integer.value = va_arg(ap, int); | |
844 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
845 | break; | |
78f81cc4 | 846 | /* add more types as needed */ |
1da177e4 LT |
847 | default: |
848 | printk(IBM_ERR "acpi_evalf() called " | |
849 | "with invalid format character '%c'\n", c); | |
850 | return 0; | |
851 | } | |
852 | } | |
853 | va_end(ap); | |
854 | ||
78f81cc4 BD |
855 | if (res_type != 'v') { |
856 | result.length = sizeof(out_obj); | |
857 | result.pointer = &out_obj; | |
858 | resultp = &result; | |
859 | } else | |
860 | resultp = NULL; | |
1da177e4 | 861 | |
78f81cc4 | 862 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
863 | |
864 | switch (res_type) { | |
78f81cc4 | 865 | case 'd': /* int */ |
1da177e4 LT |
866 | if (res) |
867 | *(int *)res = out_obj.integer.value; | |
868 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
869 | break; | |
78f81cc4 | 870 | case 'v': /* void */ |
1da177e4 LT |
871 | success = status == AE_OK; |
872 | break; | |
78f81cc4 | 873 | /* add more types as needed */ |
1da177e4 LT |
874 | default: |
875 | printk(IBM_ERR "acpi_evalf() called " | |
876 | "with invalid format character '%c'\n", res_type); | |
877 | return 0; | |
878 | } | |
879 | ||
56b6aeb0 HMH |
880 | if (!success && !quiet) |
881 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
882 | method, fmt0, status); | |
883 | ||
884 | return success; | |
885 | } | |
886 | ||
887 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
888 | { | |
889 | int i; | |
890 | ||
891 | if (acpi_evalf(handle, &i, method, "d")) | |
892 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
893 | else | |
894 | printk(IBM_ERR "error calling %s\n", method); | |
895 | } | |
896 | ||
897 | static int acpi_ec_read(int i, u8 * p) | |
898 | { | |
899 | int v; | |
900 | ||
901 | if (ecrd_handle) { | |
902 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
903 | return 0; | |
904 | *p = v; | |
905 | } else { | |
906 | if (ec_read(i, p) < 0) | |
907 | return 0; | |
908 | } | |
909 | ||
910 | return 1; | |
911 | } | |
912 | ||
913 | static int acpi_ec_write(int i, u8 v) | |
914 | { | |
915 | if (ecwr_handle) { | |
916 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
917 | return 0; | |
918 | } else { | |
919 | if (ec_write(i, v) < 0) | |
920 | return 0; | |
921 | } | |
922 | ||
923 | return 1; | |
924 | } | |
925 | ||
926 | static int _sta(acpi_handle handle) | |
927 | { | |
928 | int status; | |
929 | ||
930 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
931 | status = 0; | |
932 | ||
933 | return status; | |
934 | } | |
935 | ||
c9bea99c HMH |
936 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
937 | { | |
938 | if (!cmos_handle) | |
939 | return -ENXIO; | |
940 | ||
941 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
942 | return -EIO; | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
56b6aeb0 HMH |
947 | /************************************************************************* |
948 | * ACPI device model | |
949 | */ | |
950 | ||
8d376cd6 | 951 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
952 | acpi_handle *handle, acpi_handle parent, |
953 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
954 | { |
955 | int i; | |
956 | acpi_status status; | |
957 | ||
5ae930e6 HMH |
958 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
959 | name); | |
960 | ||
56b6aeb0 HMH |
961 | for (i = 0; i < num_paths; i++) { |
962 | status = acpi_get_handle(parent, paths[i], handle); | |
963 | if (ACPI_SUCCESS(status)) { | |
964 | *path = paths[i]; | |
5ae930e6 HMH |
965 | dbg_printk(TPACPI_DBG_INIT, |
966 | "Found ACPI handle %s for %s\n", | |
967 | *path, name); | |
56b6aeb0 HMH |
968 | return; |
969 | } | |
970 | } | |
971 | ||
5ae930e6 HMH |
972 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
973 | name); | |
56b6aeb0 HMH |
974 | *handle = NULL; |
975 | } | |
976 | ||
8d376cd6 | 977 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
978 | { |
979 | struct ibm_struct *ibm = data; | |
980 | ||
8fef502e HMH |
981 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
982 | return; | |
983 | ||
8d376cd6 | 984 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
985 | return; |
986 | ||
8d376cd6 | 987 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
988 | } |
989 | ||
8d376cd6 | 990 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
991 | { |
992 | acpi_status status; | |
5ae930e6 | 993 | int rc; |
56b6aeb0 | 994 | |
8d376cd6 HMH |
995 | BUG_ON(!ibm->acpi); |
996 | ||
997 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
998 | return 0; |
999 | ||
5ae930e6 | 1000 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
1001 | "setting up ACPI notify for %s\n", ibm->name); |
1002 | ||
5ae930e6 HMH |
1003 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
1004 | if (rc < 0) { | |
1005 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
1006 | ibm->name, rc); | |
56b6aeb0 HMH |
1007 | return -ENODEV; |
1008 | } | |
1009 | ||
8d376cd6 HMH |
1010 | acpi_driver_data(ibm->acpi->device) = ibm; |
1011 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
1012 | IBM_ACPI_EVENT_PREFIX, |
1013 | ibm->name); | |
56b6aeb0 | 1014 | |
8d376cd6 HMH |
1015 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
1016 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
1017 | if (ACPI_FAILURE(status)) { |
1018 | if (status == AE_ALREADY_EXISTS) { | |
1019 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
1020 | ibm->name); | |
1021 | } else { | |
1022 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
1023 | ibm->name, status); | |
1024 | } | |
1025 | return -ENODEV; | |
1026 | } | |
8d376cd6 | 1027 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
1028 | return 0; |
1029 | } | |
1030 | ||
8d376cd6 | 1031 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
1032 | { |
1033 | return 0; | |
1034 | } | |
1035 | ||
6700121b | 1036 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 1037 | { |
5ae930e6 | 1038 | int rc; |
56b6aeb0 | 1039 | |
fe08bc4b HMH |
1040 | dbg_printk(TPACPI_DBG_INIT, |
1041 | "registering %s as an ACPI driver\n", ibm->name); | |
1042 | ||
8d376cd6 HMH |
1043 | BUG_ON(!ibm->acpi); |
1044 | ||
1045 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
1046 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
1047 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
1048 | return -ENOMEM; | |
56b6aeb0 HMH |
1049 | } |
1050 | ||
8d376cd6 HMH |
1051 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
1052 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 1053 | |
8d376cd6 | 1054 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 1055 | |
5ae930e6 HMH |
1056 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
1057 | if (rc < 0) { | |
56b6aeb0 | 1058 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 1059 | ibm->name, rc); |
8d376cd6 HMH |
1060 | kfree(ibm->acpi->driver); |
1061 | ibm->acpi->driver = NULL; | |
5ae930e6 | 1062 | } else if (!rc) |
8d376cd6 | 1063 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 1064 | |
5ae930e6 | 1065 | return rc; |
56b6aeb0 HMH |
1066 | } |
1067 | ||
1068 | ||
1069 | /**************************************************************************** | |
1070 | **************************************************************************** | |
1071 | * | |
1072 | * Procfs Helpers | |
1073 | * | |
1074 | **************************************************************************** | |
1075 | ****************************************************************************/ | |
1076 | ||
8d376cd6 HMH |
1077 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
1078 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
1079 | { |
1080 | struct ibm_struct *ibm = data; | |
1081 | int len; | |
1082 | ||
1083 | if (!ibm || !ibm->read) | |
1084 | return -EINVAL; | |
1085 | ||
1086 | len = ibm->read(page); | |
1087 | if (len < 0) | |
1088 | return len; | |
1089 | ||
1090 | if (len <= off + count) | |
1091 | *eof = 1; | |
1092 | *start = page + off; | |
1093 | len -= off; | |
1094 | if (len > count) | |
1095 | len = count; | |
1096 | if (len < 0) | |
1097 | len = 0; | |
1098 | ||
1099 | return len; | |
1100 | } | |
1101 | ||
8d376cd6 HMH |
1102 | static int dispatch_procfs_write(struct file *file, |
1103 | const char __user * userbuf, | |
1104 | unsigned long count, void *data) | |
56b6aeb0 HMH |
1105 | { |
1106 | struct ibm_struct *ibm = data; | |
1107 | char *kernbuf; | |
1108 | int ret; | |
1109 | ||
1110 | if (!ibm || !ibm->write) | |
1111 | return -EINVAL; | |
1112 | ||
1113 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
1114 | if (!kernbuf) | |
1115 | return -ENOMEM; | |
1da177e4 | 1116 | |
56b6aeb0 HMH |
1117 | if (copy_from_user(kernbuf, userbuf, count)) { |
1118 | kfree(kernbuf); | |
1119 | return -EFAULT; | |
1120 | } | |
1da177e4 | 1121 | |
56b6aeb0 HMH |
1122 | kernbuf[count] = 0; |
1123 | strcat(kernbuf, ","); | |
1124 | ret = ibm->write(kernbuf); | |
1125 | if (ret == 0) | |
1126 | ret = count; | |
1da177e4 | 1127 | |
56b6aeb0 HMH |
1128 | kfree(kernbuf); |
1129 | ||
1130 | return ret; | |
1da177e4 LT |
1131 | } |
1132 | ||
1133 | static char *next_cmd(char **cmds) | |
1134 | { | |
1135 | char *start = *cmds; | |
1136 | char *end; | |
1137 | ||
1138 | while ((end = strchr(start, ',')) && end == start) | |
1139 | start = end + 1; | |
1140 | ||
1141 | if (!end) | |
1142 | return NULL; | |
1143 | ||
1144 | *end = 0; | |
1145 | *cmds = end + 1; | |
1146 | return start; | |
1147 | } | |
1148 | ||
56b6aeb0 | 1149 | |
54ae1501 HMH |
1150 | /**************************************************************************** |
1151 | **************************************************************************** | |
1152 | * | |
7f5d1cd6 | 1153 | * Device model: input, hwmon and platform |
54ae1501 HMH |
1154 | * |
1155 | **************************************************************************** | |
1156 | ****************************************************************************/ | |
1157 | ||
94954cc6 | 1158 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 1159 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 1160 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 1161 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 1162 | static struct mutex tpacpi_inputdev_send_mutex; |
54ae1501 | 1163 | |
e295e850 HMH |
1164 | |
1165 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
1166 | { | |
1167 | struct ibm_struct *ibm, *itmp; | |
1168 | ||
1169 | list_for_each_entry_safe(ibm, itmp, | |
1170 | &tpacpi_all_drivers, | |
1171 | all_drivers) { | |
1172 | if (ibm->resume) | |
1173 | (ibm->resume)(); | |
1174 | } | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
54ae1501 HMH |
1179 | static struct platform_driver tpacpi_pdriver = { |
1180 | .driver = { | |
1181 | .name = IBM_DRVR_NAME, | |
1182 | .owner = THIS_MODULE, | |
1183 | }, | |
e295e850 | 1184 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
1185 | }; |
1186 | ||
7fd40029 HMH |
1187 | static struct platform_driver tpacpi_hwmon_pdriver = { |
1188 | .driver = { | |
1189 | .name = IBM_HWMON_DRVR_NAME, | |
1190 | .owner = THIS_MODULE, | |
1191 | }, | |
1192 | }; | |
54ae1501 | 1193 | |
176750d6 HMH |
1194 | /************************************************************************* |
1195 | * thinkpad-acpi driver attributes | |
1196 | */ | |
1197 | ||
1198 | /* interface_version --------------------------------------------------- */ | |
1199 | static ssize_t tpacpi_driver_interface_version_show( | |
1200 | struct device_driver *drv, | |
1201 | char *buf) | |
1202 | { | |
1203 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
1204 | } | |
1205 | ||
1206 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1207 | tpacpi_driver_interface_version_show, NULL); | |
1208 | ||
1209 | /* debug_level --------------------------------------------------------- */ | |
1210 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1211 | char *buf) | |
1212 | { | |
1213 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1214 | } | |
1215 | ||
1216 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1217 | const char *buf, size_t count) | |
1218 | { | |
1219 | unsigned long t; | |
176750d6 | 1220 | |
7252374a | 1221 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
1222 | return -EINVAL; |
1223 | ||
1224 | dbg_level = t; | |
1225 | ||
1226 | return count; | |
1227 | } | |
1228 | ||
1229 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1230 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1231 | ||
1232 | /* version ------------------------------------------------------------- */ | |
1233 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1234 | char *buf) | |
1235 | { | |
1236 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
1237 | } | |
1238 | ||
1239 | static DRIVER_ATTR(version, S_IRUGO, | |
1240 | tpacpi_driver_version_show, NULL); | |
1241 | ||
1242 | /* --------------------------------------------------------------------- */ | |
1243 | ||
1244 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
1245 | &driver_attr_debug_level, &driver_attr_version, | |
1246 | &driver_attr_interface_version, | |
1247 | }; | |
1248 | ||
1249 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1250 | { | |
1251 | int i, res; | |
1252 | ||
1253 | i = 0; | |
1254 | res = 0; | |
1255 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1256 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1257 | i++; | |
1258 | } | |
1259 | ||
1260 | return res; | |
1261 | } | |
1262 | ||
1263 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1264 | { | |
1265 | int i; | |
1266 | ||
1267 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
1268 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
1269 | } | |
1270 | ||
7252374a HMH |
1271 | /************************************************************************* |
1272 | * sysfs support helpers | |
1273 | */ | |
1274 | ||
1275 | struct attribute_set_obj { | |
1276 | struct attribute_set s; | |
1277 | struct attribute *a; | |
1278 | } __attribute__((packed)); | |
1279 | ||
1280 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
1281 | const char* name) | |
1282 | { | |
1283 | struct attribute_set_obj *sobj; | |
1284 | ||
1285 | if (max_members == 0) | |
1286 | return NULL; | |
1287 | ||
1288 | /* Allocates space for implicit NULL at the end too */ | |
1289 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1290 | max_members * sizeof(struct attribute *), | |
1291 | GFP_KERNEL); | |
1292 | if (!sobj) | |
1293 | return NULL; | |
1294 | sobj->s.max_members = max_members; | |
1295 | sobj->s.group.attrs = &sobj->a; | |
1296 | sobj->s.group.name = name; | |
1297 | ||
1298 | return &sobj->s; | |
1299 | } | |
1300 | ||
1301 | /* not multi-threaded safe, use it in a single thread per set */ | |
1302 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
1303 | { | |
1304 | if (!s || !attr) | |
1305 | return -EINVAL; | |
1306 | ||
1307 | if (s->members >= s->max_members) | |
1308 | return -ENOMEM; | |
1309 | ||
1310 | s->group.attrs[s->members] = attr; | |
1311 | s->members++; | |
1312 | ||
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static int add_many_to_attr_set(struct attribute_set* s, | |
1317 | struct attribute **attr, | |
1318 | unsigned int count) | |
1319 | { | |
1320 | int i, res; | |
1321 | ||
1322 | for (i = 0; i < count; i++) { | |
1323 | res = add_to_attr_set(s, attr[i]); | |
1324 | if (res) | |
1325 | return res; | |
1326 | } | |
1327 | ||
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
1332 | { | |
1333 | sysfs_remove_group(kobj, &s->group); | |
1334 | destroy_attr_set(s); | |
1335 | } | |
1336 | ||
1337 | static int parse_strtoul(const char *buf, | |
1338 | unsigned long max, unsigned long *value) | |
1339 | { | |
1340 | char *endp; | |
1341 | ||
32afbf07 HMH |
1342 | while (*buf && isspace(*buf)) |
1343 | buf++; | |
7252374a HMH |
1344 | *value = simple_strtoul(buf, &endp, 0); |
1345 | while (*endp && isspace(*endp)) | |
1346 | endp++; | |
1347 | if (*endp || *value > max) | |
1348 | return -EINVAL; | |
1349 | ||
1350 | return 0; | |
1351 | } | |
1352 | ||
56b6aeb0 HMH |
1353 | /**************************************************************************** |
1354 | **************************************************************************** | |
1355 | * | |
1356 | * Subdrivers | |
1357 | * | |
1358 | **************************************************************************** | |
1359 | ****************************************************************************/ | |
1360 | ||
1361 | /************************************************************************* | |
142cfc90 | 1362 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
1363 | */ |
1364 | ||
a5763f22 | 1365 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
1366 | { |
1367 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
1368 | printk(IBM_INFO "%s\n", IBM_URL); | |
1369 | ||
d5a2f2f1 HMH |
1370 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", |
1371 | (thinkpad_id.bios_version_str) ? | |
1372 | thinkpad_id.bios_version_str : "unknown", | |
1373 | (thinkpad_id.ec_version_str) ? | |
1374 | thinkpad_id.ec_version_str : "unknown"); | |
1375 | ||
1376 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
1377 | printk(IBM_INFO "%s %s\n", | |
1378 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
1379 | "IBM" : ((thinkpad_id.vendor == | |
1380 | PCI_VENDOR_ID_LENOVO) ? | |
1381 | "Lenovo" : "Unknown vendor"), | |
1382 | thinkpad_id.model_str); | |
3945ac36 | 1383 | |
1da177e4 LT |
1384 | return 0; |
1385 | } | |
1386 | ||
643f12db | 1387 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1388 | { |
1389 | int len = 0; | |
1390 | ||
1391 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
1392 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
1393 | ||
1394 | return len; | |
1395 | } | |
1396 | ||
a5763f22 HMH |
1397 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1398 | .name = "driver", | |
1399 | .read = thinkpad_acpi_driver_read, | |
1400 | }; | |
1401 | ||
56b6aeb0 HMH |
1402 | /************************************************************************* |
1403 | * Hotkey subdriver | |
1404 | */ | |
1405 | ||
01e88f25 HMH |
1406 | enum { /* Keys available through NVRAM polling */ |
1407 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1408 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1409 | }; | |
1410 | ||
1411 | enum { /* Positions of some of the keys in hotkey masks */ | |
1412 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1413 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1414 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1415 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1416 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1417 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1418 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1419 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1420 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1421 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1422 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1423 | }; | |
1424 | ||
1425 | enum { /* NVRAM to ACPI HKEY group map */ | |
1426 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1427 | TP_ACPI_HKEY_ZOOM_MASK | | |
1428 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1429 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1430 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1431 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1432 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1433 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1434 | TP_ACPI_HKEY_MUTE_MASK, | |
1435 | }; | |
1436 | ||
1437 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1438 | struct tp_nvram_state { | |
1439 | u16 thinkpad_toggle:1; | |
1440 | u16 zoom_toggle:1; | |
1441 | u16 display_toggle:1; | |
1442 | u16 thinklight_toggle:1; | |
1443 | u16 hibernate_toggle:1; | |
1444 | u16 displayexp_toggle:1; | |
1445 | u16 display_state:1; | |
1446 | u16 brightness_toggle:1; | |
1447 | u16 volume_toggle:1; | |
1448 | u16 mute:1; | |
1449 | ||
1450 | u8 brightness_level; | |
1451 | u8 volume_level; | |
1452 | }; | |
1453 | ||
1454 | static struct task_struct *tpacpi_hotkey_task; | |
1455 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1456 | static int hotkey_poll_freq = 10; /* Hz */ | |
1457 | static struct mutex hotkey_thread_mutex; | |
1458 | static struct mutex hotkey_thread_data_mutex; | |
1459 | static unsigned int hotkey_config_change; | |
1460 | ||
1461 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1462 | ||
1463 | #define hotkey_source_mask 0U | |
1464 | ||
1465 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1466 | ||
78f81cc4 | 1467 | static int hotkey_orig_status; |
ae92bd17 | 1468 | static u32 hotkey_orig_mask; |
9b010de5 | 1469 | static u32 hotkey_all_mask; |
6a38abbf | 1470 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1471 | static u32 hotkey_mask; |
6a38abbf | 1472 | |
edf0e0e5 | 1473 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1474 | |
94954cc6 | 1475 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1476 | |
01e88f25 HMH |
1477 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1478 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
1479 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1480 | hotkey_config_change++; | |
1481 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
1482 | mutex_unlock(&hotkey_thread_data_mutex); | |
1483 | #else | |
1484 | #define HOTKEY_CONFIG_CRITICAL_START | |
1485 | #define HOTKEY_CONFIG_CRITICAL_END | |
1486 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1487 | ||
74941a69 HMH |
1488 | static int hotkey_get_wlsw(int *status) |
1489 | { | |
1490 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1491 | return -EIO; | |
1492 | return 0; | |
1493 | } | |
1494 | ||
b2c985e7 HMH |
1495 | /* |
1496 | * Call with hotkey_mutex held | |
1497 | */ | |
1498 | static int hotkey_mask_get(void) | |
1499 | { | |
01e88f25 HMH |
1500 | u32 m = 0; |
1501 | ||
b2c985e7 | 1502 | if (tp_features.hotkey_mask) { |
01e88f25 | 1503 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1504 | return -EIO; |
1505 | } | |
01e88f25 | 1506 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1507 | |
1508 | return 0; | |
1509 | } | |
1510 | ||
1511 | /* | |
1512 | * Call with hotkey_mutex held | |
1513 | */ | |
1514 | static int hotkey_mask_set(u32 mask) | |
1515 | { | |
1516 | int i; | |
1517 | int rc = 0; | |
1518 | ||
1519 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1520 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1521 | for (i = 0; i < 32; i++) { |
1522 | u32 m = 1 << i; | |
01e88f25 HMH |
1523 | /* enable in firmware mask only keys not in NVRAM |
1524 | * mode, but enable the key in the cached hotkey_mask | |
1525 | * regardless of mode, or the key will end up | |
1526 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1527 | if (!acpi_evalf(hkey_handle, |
1528 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1529 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1530 | rc = -EIO; |
1531 | break; | |
1532 | } else { | |
1533 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1534 | } | |
1535 | } | |
01e88f25 | 1536 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1537 | |
1538 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1539 | if (!hotkey_mask_get() && !rc && |
1540 | (hotkey_mask & ~hotkey_source_mask) != | |
1541 | (mask & ~hotkey_source_mask)) { | |
b2c985e7 HMH |
1542 | printk(IBM_NOTICE |
1543 | "requested hot key mask 0x%08x, but " | |
1544 | "firmware forced it to 0x%08x\n", | |
1545 | mask, hotkey_mask); | |
1546 | } | |
01e88f25 HMH |
1547 | } else { |
1548 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1549 | HOTKEY_CONFIG_CRITICAL_START | |
1550 | hotkey_mask = mask & hotkey_source_mask; | |
1551 | HOTKEY_CONFIG_CRITICAL_END | |
1552 | hotkey_mask_get(); | |
1553 | if (hotkey_mask != mask) { | |
1554 | printk(IBM_NOTICE | |
1555 | "requested hot key mask 0x%08x, " | |
1556 | "forced to 0x%08x (NVRAM poll mask is " | |
1557 | "0x%08x): no firmware mask support\n", | |
1558 | mask, hotkey_mask, hotkey_source_mask); | |
1559 | } | |
1560 | #else | |
1561 | hotkey_mask_get(); | |
1562 | rc = -ENXIO; | |
1563 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1564 | } |
1565 | ||
1566 | return rc; | |
1567 | } | |
1568 | ||
1569 | static int hotkey_status_get(int *status) | |
1570 | { | |
1571 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1572 | return -EIO; | |
1573 | ||
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | static int hotkey_status_set(int status) | |
1578 | { | |
1579 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1580 | return -EIO; | |
1581 | ||
1582 | return 0; | |
1583 | } | |
1584 | ||
b7c8c200 HMH |
1585 | static void tpacpi_input_send_radiosw(void) |
1586 | { | |
1587 | int wlsw; | |
1588 | ||
1589 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1590 | ||
1591 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { | |
1592 | input_report_switch(tpacpi_inputdev, | |
1593 | SW_RADIO, !!wlsw); | |
1594 | input_sync(tpacpi_inputdev); | |
1595 | } | |
1596 | ||
1597 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1598 | } | |
1599 | ||
1600 | static void tpacpi_input_send_key(unsigned int scancode) | |
1601 | { | |
1602 | unsigned int keycode; | |
1603 | ||
1604 | keycode = hotkey_keycode_map[scancode]; | |
1605 | ||
1606 | if (keycode != KEY_RESERVED) { | |
1607 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1608 | ||
1609 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1610 | if (keycode == KEY_UNKNOWN) | |
1611 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1612 | scancode); | |
1613 | input_sync(tpacpi_inputdev); | |
1614 | ||
1615 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1616 | if (keycode == KEY_UNKNOWN) | |
1617 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1618 | scancode); | |
1619 | input_sync(tpacpi_inputdev); | |
1620 | ||
1621 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1622 | } | |
1623 | } | |
1624 | ||
01e88f25 HMH |
1625 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1626 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1627 | ||
1628 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1629 | { | |
1630 | tpacpi_input_send_key(scancode); | |
1631 | if (hotkey_report_mode < 2) { | |
1632 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1633 | 0x80, 0x1001 + scancode); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1638 | { | |
1639 | u8 d; | |
1640 | ||
1641 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1642 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1643 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1644 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1645 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1646 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1647 | } | |
1648 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1649 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1650 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1651 | } | |
1652 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1653 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1654 | n->displayexp_toggle = | |
1655 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1656 | } | |
1657 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1658 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1659 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1660 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1661 | n->brightness_toggle = | |
1662 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1663 | } | |
1664 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1665 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1666 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1667 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1668 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1669 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
1674 | do { if ((mask & (1 << __scancode)) && oldn->__member != newn->__member) \ | |
1675 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1676 | ||
1677 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1678 | do { if (mask & (1 << __scancode)) \ | |
1679 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1680 | ||
1681 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
1682 | struct tp_nvram_state *newn, | |
1683 | u32 mask) | |
1684 | { | |
1685 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1686 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1687 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1688 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1689 | ||
1690 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1691 | ||
1692 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1693 | ||
1694 | /* handle volume */ | |
1695 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1696 | if (oldn->mute != newn->mute) { | |
1697 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1698 | } | |
1699 | if (oldn->volume_level > newn->volume_level) { | |
1700 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1701 | } else if (oldn->volume_level < newn->volume_level) { | |
1702 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1703 | } else if (oldn->mute == newn->mute) { | |
1704 | /* repeated key presses that didn't change state */ | |
1705 | if (newn->mute) { | |
1706 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1707 | } else if (newn->volume_level != 0) { | |
1708 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1709 | } else { | |
1710 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1711 | } | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | /* handle brightness */ | |
1716 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1717 | if (oldn->brightness_level < newn->brightness_level) { | |
1718 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1719 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1720 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1721 | } else { | |
1722 | /* repeated key presses that didn't change state */ | |
1723 | if (newn->brightness_level != 0) { | |
1724 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1725 | } else { | |
1726 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1727 | } | |
1728 | } | |
1729 | } | |
1730 | } | |
1731 | ||
1732 | #undef TPACPI_COMPARE_KEY | |
1733 | #undef TPACPI_MAY_SEND_KEY | |
1734 | ||
1735 | static int hotkey_kthread(void *data) | |
1736 | { | |
1737 | struct tp_nvram_state s[2]; | |
1738 | u32 mask; | |
1739 | unsigned int si, so; | |
1740 | unsigned long t; | |
1741 | unsigned int change_detector, must_reset; | |
1742 | ||
1743 | mutex_lock(&hotkey_thread_mutex); | |
1744 | ||
1745 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1746 | goto exit; | |
1747 | ||
1748 | set_freezable(); | |
1749 | ||
1750 | so = 0; | |
1751 | si = 1; | |
1752 | t = 0; | |
1753 | ||
1754 | /* Initial state for compares */ | |
1755 | mutex_lock(&hotkey_thread_data_mutex); | |
1756 | change_detector = hotkey_config_change; | |
1757 | mask = hotkey_source_mask & hotkey_mask; | |
1758 | mutex_unlock(&hotkey_thread_data_mutex); | |
1759 | hotkey_read_nvram(&s[so], mask); | |
1760 | ||
1761 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1762 | if (t == 0) | |
1763 | t = 1000/hotkey_poll_freq; | |
1764 | t = msleep_interruptible(t); | |
1765 | if (unlikely(kthread_should_stop())) | |
1766 | break; | |
1767 | must_reset = try_to_freeze(); | |
1768 | if (t > 0 && !must_reset) | |
1769 | continue; | |
1770 | ||
1771 | mutex_lock(&hotkey_thread_data_mutex); | |
1772 | if (must_reset || hotkey_config_change != change_detector) { | |
1773 | /* forget old state on thaw or config change */ | |
1774 | si = so; | |
1775 | t = 0; | |
1776 | change_detector = hotkey_config_change; | |
1777 | } | |
1778 | mask = hotkey_source_mask & hotkey_mask; | |
1779 | mutex_unlock(&hotkey_thread_data_mutex); | |
1780 | ||
1781 | if (likely(mask)) { | |
1782 | hotkey_read_nvram(&s[si], mask); | |
1783 | if (likely(si != so)) { | |
1784 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
1785 | mask); | |
1786 | } | |
1787 | } | |
1788 | ||
1789 | so = si; | |
1790 | si ^= 1; | |
1791 | } | |
1792 | ||
1793 | exit: | |
1794 | mutex_unlock(&hotkey_thread_mutex); | |
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | static void hotkey_poll_stop_sync(void) | |
1799 | { | |
1800 | if (tpacpi_hotkey_task) { | |
1801 | if (frozen(tpacpi_hotkey_task) || | |
1802 | freezing(tpacpi_hotkey_task)) | |
1803 | thaw_process(tpacpi_hotkey_task); | |
1804 | ||
1805 | kthread_stop(tpacpi_hotkey_task); | |
1806 | tpacpi_hotkey_task = NULL; | |
1807 | mutex_lock(&hotkey_thread_mutex); | |
1808 | /* at this point, the thread did exit */ | |
1809 | mutex_unlock(&hotkey_thread_mutex); | |
1810 | } | |
1811 | } | |
1812 | ||
1813 | /* call with hotkey_mutex held */ | |
1814 | static void hotkey_poll_setup(int may_warn) | |
1815 | { | |
1816 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1817 | hotkey_poll_freq > 0 && | |
1818 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1819 | if (!tpacpi_hotkey_task) { | |
1820 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
1821 | NULL, IBM_FILE "d"); | |
1822 | if (IS_ERR(tpacpi_hotkey_task)) { | |
1823 | tpacpi_hotkey_task = NULL; | |
1824 | printk(IBM_ERR "could not create kernel thread " | |
1825 | "for hotkey polling\n"); | |
1826 | } | |
1827 | } | |
1828 | } else { | |
1829 | hotkey_poll_stop_sync(); | |
1830 | if (may_warn && | |
1831 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
1832 | printk(IBM_NOTICE "hot keys 0x%08x require polling, " | |
1833 | "which is currently disabled\n", | |
1834 | hotkey_source_mask); | |
1835 | } | |
1836 | } | |
1837 | } | |
1838 | ||
1839 | static void hotkey_poll_setup_safe(int may_warn) | |
1840 | { | |
1841 | mutex_lock(&hotkey_mutex); | |
1842 | hotkey_poll_setup(may_warn); | |
1843 | mutex_unlock(&hotkey_mutex); | |
1844 | } | |
1845 | ||
1846 | static int hotkey_inputdev_open(struct input_dev *dev) | |
1847 | { | |
1848 | switch (tpacpi_lifecycle) { | |
1849 | case TPACPI_LIFE_INIT: | |
1850 | /* | |
1851 | * hotkey_init will call hotkey_poll_setup_safe | |
1852 | * at the appropriate moment | |
1853 | */ | |
1854 | return 0; | |
1855 | case TPACPI_LIFE_EXITING: | |
1856 | return -EBUSY; | |
1857 | case TPACPI_LIFE_RUNNING: | |
1858 | hotkey_poll_setup_safe(0); | |
1859 | return 0; | |
1860 | } | |
1861 | ||
1862 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1863 | BUG(); | |
1864 | return -EBUSY; | |
1865 | } | |
1866 | ||
1867 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1868 | { | |
1869 | /* disable hotkey polling when possible */ | |
1870 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1871 | hotkey_poll_setup_safe(0); | |
1872 | } | |
1873 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1874 | ||
a0416420 HMH |
1875 | /* sysfs hotkey enable ------------------------------------------------- */ |
1876 | static ssize_t hotkey_enable_show(struct device *dev, | |
1877 | struct device_attribute *attr, | |
1878 | char *buf) | |
1879 | { | |
ae92bd17 | 1880 | int res, status; |
a0416420 | 1881 | |
b2c985e7 | 1882 | res = hotkey_status_get(&status); |
a0416420 HMH |
1883 | if (res) |
1884 | return res; | |
1885 | ||
1886 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1887 | } | |
1888 | ||
1889 | static ssize_t hotkey_enable_store(struct device *dev, | |
1890 | struct device_attribute *attr, | |
1891 | const char *buf, size_t count) | |
1892 | { | |
1893 | unsigned long t; | |
b2c985e7 | 1894 | int res; |
a0416420 HMH |
1895 | |
1896 | if (parse_strtoul(buf, 1, &t)) | |
1897 | return -EINVAL; | |
1898 | ||
b2c985e7 | 1899 | res = hotkey_status_set(t); |
a0416420 HMH |
1900 | |
1901 | return (res) ? res : count; | |
1902 | } | |
1903 | ||
1904 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1905 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1906 | hotkey_enable_show, hotkey_enable_store); |
1907 | ||
1908 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1909 | static ssize_t hotkey_mask_show(struct device *dev, | |
1910 | struct device_attribute *attr, | |
1911 | char *buf) | |
1912 | { | |
b2c985e7 | 1913 | int res; |
a0416420 | 1914 | |
b2c985e7 HMH |
1915 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1916 | return -ERESTARTSYS; | |
1917 | res = hotkey_mask_get(); | |
1918 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1919 | |
b2c985e7 HMH |
1920 | return (res)? |
1921 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1922 | } |
1923 | ||
1924 | static ssize_t hotkey_mask_store(struct device *dev, | |
1925 | struct device_attribute *attr, | |
1926 | const char *buf, size_t count) | |
1927 | { | |
1928 | unsigned long t; | |
b2c985e7 | 1929 | int res; |
a0416420 | 1930 | |
ae92bd17 | 1931 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1932 | return -EINVAL; |
1933 | ||
b2c985e7 HMH |
1934 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1935 | return -ERESTARTSYS; | |
1936 | ||
1937 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1938 | |
1939 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1940 | hotkey_poll_setup(1); | |
1941 | #endif | |
1942 | ||
b2c985e7 | 1943 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1944 | |
1945 | return (res) ? res : count; | |
1946 | } | |
1947 | ||
1948 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1949 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1950 | hotkey_mask_show, hotkey_mask_store); |
1951 | ||
1952 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1953 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1954 | struct device_attribute *attr, | |
1955 | char *buf) | |
1956 | { | |
1957 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1958 | } | |
1959 | ||
1960 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1961 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1962 | |
1963 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1964 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1965 | struct device_attribute *attr, | |
1966 | char *buf) | |
1967 | { | |
ae92bd17 | 1968 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1969 | } |
1970 | ||
1971 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1972 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1973 | |
9b010de5 HMH |
1974 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1975 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1976 | struct device_attribute *attr, | |
1977 | char *buf) | |
1978 | { | |
01e88f25 HMH |
1979 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1980 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1981 | } |
1982 | ||
1983 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1984 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1985 | ||
1986 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1987 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1988 | struct device_attribute *attr, | |
1989 | char *buf) | |
1990 | { | |
1991 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1992 | (hotkey_all_mask | hotkey_source_mask) |
1993 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1994 | } |
1995 | ||
1996 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1997 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1998 | hotkey_recommended_mask_show, NULL); | |
1999 | ||
01e88f25 HMH |
2000 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2001 | ||
2002 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2003 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2004 | struct device_attribute *attr, | |
2005 | char *buf) | |
2006 | { | |
2007 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2008 | } | |
2009 | ||
2010 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2011 | struct device_attribute *attr, | |
2012 | const char *buf, size_t count) | |
2013 | { | |
2014 | unsigned long t; | |
2015 | ||
2016 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2017 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2018 | return -EINVAL; | |
2019 | ||
2020 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
2021 | return -ERESTARTSYS; | |
2022 | ||
2023 | HOTKEY_CONFIG_CRITICAL_START | |
2024 | hotkey_source_mask = t; | |
2025 | HOTKEY_CONFIG_CRITICAL_END | |
2026 | ||
2027 | hotkey_poll_setup(1); | |
2028 | ||
2029 | mutex_unlock(&hotkey_mutex); | |
2030 | ||
2031 | return count; | |
2032 | } | |
2033 | ||
2034 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2035 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2036 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2037 | ||
2038 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2039 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2040 | struct device_attribute *attr, | |
2041 | char *buf) | |
2042 | { | |
2043 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2044 | } | |
2045 | ||
2046 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2047 | struct device_attribute *attr, | |
2048 | const char *buf, size_t count) | |
2049 | { | |
2050 | unsigned long t; | |
2051 | ||
2052 | if (parse_strtoul(buf, 25, &t)) | |
2053 | return -EINVAL; | |
2054 | ||
2055 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
2056 | return -ERESTARTSYS; | |
2057 | ||
2058 | hotkey_poll_freq = t; | |
2059 | ||
2060 | hotkey_poll_setup(1); | |
2061 | mutex_unlock(&hotkey_mutex); | |
2062 | ||
2063 | return count; | |
2064 | } | |
2065 | ||
2066 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2067 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2068 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2069 | ||
2070 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2071 | ||
74941a69 HMH |
2072 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
2073 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
2074 | struct device_attribute *attr, | |
2075 | char *buf) | |
2076 | { | |
2077 | int res, s; | |
2078 | res = hotkey_get_wlsw(&s); | |
2079 | if (res < 0) | |
2080 | return res; | |
2081 | ||
2082 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2083 | } | |
2084 | ||
2085 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2086 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2087 | ||
ff80f137 HMH |
2088 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2089 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2090 | struct device_attribute *attr, | |
2091 | char *buf) | |
2092 | { | |
2093 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2094 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2095 | } | |
2096 | ||
2097 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2098 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2099 | ||
a0416420 HMH |
2100 | /* --------------------------------------------------------------------- */ |
2101 | ||
ff80f137 HMH |
2102 | static struct attribute *hotkey_attributes[] __initdata = { |
2103 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2104 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 2105 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
2106 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2107 | &dev_attr_hotkey_mask.attr, | |
2108 | &dev_attr_hotkey_all_mask.attr, | |
2109 | &dev_attr_hotkey_recommended_mask.attr, | |
2110 | &dev_attr_hotkey_source_mask.attr, | |
2111 | &dev_attr_hotkey_poll_freq.attr, | |
2112 | #endif | |
ff80f137 HMH |
2113 | }; |
2114 | ||
2115 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 2116 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
2117 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2118 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
2119 | &dev_attr_hotkey_all_mask.attr, |
2120 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 2121 | #endif |
a0416420 HMH |
2122 | }; |
2123 | ||
a5763f22 | 2124 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 2125 | { |
0f089147 HMH |
2126 | /* Requirements for changing the default keymaps: |
2127 | * | |
2128 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
2129 | * good reasons. Do not change them unless you have deep | |
2130 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
2131 | * the various ThinkPad models. The driver behaves | |
2132 | * differently for KEY_RESERVED: such keys have their | |
2133 | * hot key mask *unset* in mask_recommended, and also | |
2134 | * in the initial hot key mask programmed into the | |
2135 | * firmware at driver load time, which means the firm- | |
2136 | * ware may react very differently if you change them to | |
2137 | * something else; | |
2138 | * | |
2139 | * 2. You must be subscribed to the linux-thinkpad and | |
2140 | * ibm-acpi-devel mailing lists, and you should read the | |
2141 | * list archives since 2007 if you want to change the | |
2142 | * keymaps. This requirement exists so that you will | |
2143 | * know the past history of problems with the thinkpad- | |
2144 | * acpi driver keymaps, and also that you will be | |
2145 | * listening to any bug reports; | |
2146 | * | |
2147 | * 3. Do not send thinkpad-acpi specific patches directly to | |
2148 | * for merging, *ever*. Send them to the linux-acpi | |
2149 | * mailinglist for comments. Merging is to be done only | |
2150 | * through acpi-test and the ACPI maintainer. | |
2151 | * | |
2152 | * If the above is too much to ask, don't change the keymap. | |
2153 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
2154 | */ | |
edf0e0e5 HMH |
2155 | static u16 ibm_keycode_map[] __initdata = { |
2156 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2157 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
2158 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2159 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2160 | |
2161 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2162 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2163 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2164 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
2165 | |
2166 | /* brightness: firmware always reacts to them, unless | |
2167 | * X.org did some tricks in the radeon BIOS scratch | |
2168 | * registers of *some* models */ | |
e927c08d | 2169 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 2170 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
2171 | |
2172 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 2173 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2174 | |
edf0e0e5 HMH |
2175 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2176 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2177 | |
2178 | /* Volume: firmware always react to it and reprograms | |
2179 | * the built-in *extra* mixer. Never map it to control | |
2180 | * another mixer by default. */ | |
e927c08d HMH |
2181 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2182 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2183 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2184 | |
edf0e0e5 | 2185 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2186 | |
edf0e0e5 HMH |
2187 | /* (assignments unknown, please report if found) */ |
2188 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2189 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2190 | }; | |
2191 | static u16 lenovo_keycode_map[] __initdata = { | |
2192 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2193 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2194 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2195 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2196 | |
2197 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2198 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2199 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2200 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 2201 | |
56a185b4 | 2202 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2203 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2204 | |
edf0e0e5 | 2205 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2206 | |
edf0e0e5 HMH |
2207 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2208 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2209 | |
2210 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2211 | * react to it and reprograms the built-in *extra* mixer. | |
2212 | * Never map it to control another mixer by default. | |
2213 | * | |
2214 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2215 | * these over the regular keyboard, so these are no-ops, | |
2216 | * but there are still weird bugs re. MUTE, so do not | |
2217 | * change unless you get test reports from all Lenovo | |
2218 | * models. May cause the BIOS to interfere with the | |
2219 | * HDA mixer. | |
2220 | */ | |
e927c08d HMH |
2221 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2222 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2223 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2224 | |
edf0e0e5 | 2225 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2226 | |
edf0e0e5 HMH |
2227 | /* (assignments unknown, please report if found) */ |
2228 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2229 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2230 | }; | |
2231 | ||
2232 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2233 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2234 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2235 | ||
6a38abbf | 2236 | int res, i; |
74941a69 | 2237 | int status; |
1b6521dc | 2238 | int hkeyv; |
b86c4722 | 2239 | |
fe08bc4b HMH |
2240 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2241 | ||
6a38abbf | 2242 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2243 | BUG_ON(tpacpi_inputdev->open != NULL || |
2244 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2245 | |
8d376cd6 | 2246 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2247 | mutex_init(&hotkey_mutex); |
5fba344c | 2248 | |
01e88f25 HMH |
2249 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2250 | mutex_init(&hotkey_thread_mutex); | |
2251 | mutex_init(&hotkey_thread_data_mutex); | |
2252 | #endif | |
2253 | ||
56b6aeb0 | 2254 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2255 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2256 | |
fe08bc4b | 2257 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2258 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2259 | |
d8fd94d9 | 2260 | if (tp_features.hotkey) { |
01e88f25 | 2261 | hotkey_dev_attributes = create_attr_set(10, NULL); |
a0416420 HMH |
2262 | if (!hotkey_dev_attributes) |
2263 | return -ENOMEM; | |
ff80f137 HMH |
2264 | res = add_many_to_attr_set(hotkey_dev_attributes, |
2265 | hotkey_attributes, | |
2266 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
2267 | if (res) |
2268 | return res; | |
2269 | ||
56b6aeb0 | 2270 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
2271 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
2272 | for HKEY interface version 0x100 */ | |
2273 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2274 | if ((hkeyv >> 8) != 1) { | |
2275 | printk(IBM_ERR "unknown version of the " | |
2276 | "HKEY interface: 0x%x\n", hkeyv); | |
2277 | printk(IBM_ERR "please report this to %s\n", | |
2278 | IBM_MAIL); | |
2279 | } else { | |
2280 | /* | |
2281 | * MHKV 0x100 in A31, R40, R40e, | |
2282 | * T4x, X31, and later | |
01e88f25 | 2283 | */ |
1b6521dc HMH |
2284 | tp_features.hotkey_mask = 1; |
2285 | } | |
2286 | } | |
56b6aeb0 | 2287 | |
fe08bc4b | 2288 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 2289 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 2290 | |
9b010de5 | 2291 | if (tp_features.hotkey_mask) { |
9b010de5 | 2292 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc HMH |
2293 | "MHKA", "qd")) { |
2294 | printk(IBM_ERR | |
2295 | "missing MHKA handler, " | |
2296 | "please report this to %s\n", | |
2297 | IBM_MAIL); | |
9b010de5 | 2298 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 2299 | } |
9b010de5 HMH |
2300 | } |
2301 | ||
01e88f25 HMH |
2302 | /* hotkey_source_mask *must* be zero for |
2303 | * the first hotkey_mask_get */ | |
b2c985e7 | 2304 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 2305 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
2306 | res = hotkey_mask_get(); |
2307 | hotkey_orig_mask = hotkey_mask; | |
2308 | if (!res) { | |
2309 | res = add_many_to_attr_set( | |
2310 | hotkey_dev_attributes, | |
2311 | hotkey_mask_attributes, | |
2312 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2313 | } | |
a0416420 | 2314 | } |
74941a69 | 2315 | |
01e88f25 HMH |
2316 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2317 | if (tp_features.hotkey_mask) { | |
2318 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2319 | & ~hotkey_all_mask; | |
2320 | } else { | |
2321 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2322 | } | |
2323 | ||
2324 | vdbg_printk(TPACPI_DBG_INIT, | |
2325 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2326 | hotkey_source_mask, hotkey_poll_freq); | |
2327 | #endif | |
2328 | ||
74941a69 HMH |
2329 | /* Not all thinkpads have a hardware radio switch */ |
2330 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2331 | tp_features.hotkey_wlsw = 1; | |
2332 | printk(IBM_INFO | |
2333 | "radio switch found; radios are %s\n", | |
2334 | enabled(status, 0)); | |
2335 | res = add_to_attr_set(hotkey_dev_attributes, | |
2336 | &dev_attr_hotkey_radio_sw.attr); | |
2337 | } | |
2338 | ||
a0416420 HMH |
2339 | if (!res) |
2340 | res = register_attr_set_with_sysfs( | |
2341 | hotkey_dev_attributes, | |
2342 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2343 | if (res) |
2344 | return res; | |
6a38abbf | 2345 | |
edf0e0e5 HMH |
2346 | /* Set up key map */ |
2347 | ||
2348 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2349 | GFP_KERNEL); | |
2350 | if (!hotkey_keycode_map) { | |
2351 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
2352 | return -ENOMEM; | |
2353 | } | |
2354 | ||
2355 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2356 | dbg_printk(TPACPI_DBG_INIT, | |
2357 | "using Lenovo default hot key map\n"); | |
2358 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2359 | TPACPI_HOTKEY_MAP_SIZE); | |
2360 | } else { | |
2361 | dbg_printk(TPACPI_DBG_INIT, | |
2362 | "using IBM default hot key map\n"); | |
2363 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2364 | TPACPI_HOTKEY_MAP_SIZE); | |
2365 | } | |
2366 | ||
6a38abbf HMH |
2367 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2368 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2369 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2370 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2371 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2372 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2373 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2374 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2375 | set_bit(hotkey_keycode_map[i], | |
2376 | tpacpi_inputdev->keybit); | |
2377 | } else { | |
2378 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2379 | hotkey_reserved_mask |= 1 << i; | |
2380 | } | |
2381 | } | |
2382 | ||
5c29d58f HMH |
2383 | if (tp_features.hotkey_wlsw) { |
2384 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2385 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2386 | } | |
2387 | ||
1a343760 HMH |
2388 | dbg_printk(TPACPI_DBG_INIT, |
2389 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2390 | res = hotkey_status_set(1); |
2391 | if (res) | |
2392 | return res; | |
01e88f25 HMH |
2393 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2394 | & ~hotkey_reserved_mask) | |
1a343760 | 2395 | | hotkey_orig_mask); |
01e88f25 | 2396 | if (res < 0 && res != -ENXIO) |
1a343760 | 2397 | return res; |
ff80f137 HMH |
2398 | |
2399 | dbg_printk(TPACPI_DBG_INIT, | |
2400 | "legacy hot key reporting over procfs %s\n", | |
2401 | (hotkey_report_mode < 2) ? | |
2402 | "enabled" : "disabled"); | |
01e88f25 HMH |
2403 | |
2404 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2405 | tpacpi_inputdev->open = &hotkey_inputdev_open; | |
2406 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2407 | ||
2408 | hotkey_poll_setup_safe(1); | |
2409 | #endif | |
56b6aeb0 HMH |
2410 | } |
2411 | ||
d8fd94d9 | 2412 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2413 | } |
2414 | ||
2415 | static void hotkey_exit(void) | |
2416 | { | |
01e88f25 HMH |
2417 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2418 | hotkey_poll_stop_sync(); | |
2419 | #endif | |
2420 | ||
d8fd94d9 | 2421 | if (tp_features.hotkey) { |
b2c985e7 HMH |
2422 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hot key mask\n"); |
2423 | /* no short-circuit boolean operator below! */ | |
2424 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2425 | hotkey_status_set(hotkey_orig_status)) != 0) | |
2426 | printk(IBM_ERR "failed to restore hot key mask to BIOS defaults\n"); | |
5fba344c | 2427 | } |
a0416420 HMH |
2428 | |
2429 | if (hotkey_dev_attributes) { | |
2430 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2431 | hotkey_dev_attributes = NULL; | |
2432 | } | |
56b6aeb0 HMH |
2433 | } |
2434 | ||
2435 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2436 | { | |
6a38abbf | 2437 | u32 hkey; |
b7c8c200 | 2438 | unsigned int scancode; |
3eea123d | 2439 | int send_acpi_ev; |
3e5ce914 | 2440 | int ignore_acpi_ev; |
3eea123d HMH |
2441 | |
2442 | if (event != 0x80) { | |
2443 | printk(IBM_ERR "unknown HKEY notification event %d\n", event); | |
2444 | /* forward it to userspace, maybe it knows how to handle it */ | |
2445 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
2446 | ibm->acpi->device->dev.bus_id, | |
2447 | event, 0); | |
2448 | return; | |
2449 | } | |
2450 | ||
2451 | while (1) { | |
2452 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
2453 | printk(IBM_ERR "failed to retrieve HKEY event\n"); | |
2454 | return; | |
2455 | } | |
2456 | ||
2457 | if (hkey == 0) { | |
2458 | /* queue empty */ | |
2459 | return; | |
2460 | } | |
2461 | ||
2462 | send_acpi_ev = 0; | |
3e5ce914 | 2463 | ignore_acpi_ev = 0; |
56b6aeb0 | 2464 | |
ff80f137 HMH |
2465 | switch (hkey >> 12) { |
2466 | case 1: | |
2467 | /* 0x1000-0x1FFF: key presses */ | |
2468 | scancode = hkey & 0xfff; | |
2469 | if (scancode > 0 && scancode < 0x21) { | |
2470 | scancode--; | |
01e88f25 HMH |
2471 | if (!(hotkey_source_mask & (1 << scancode))) { |
2472 | tpacpi_input_send_key(scancode); | |
2473 | } else { | |
2474 | ignore_acpi_ev = 1; | |
2475 | } | |
ff80f137 HMH |
2476 | } else { |
2477 | printk(IBM_ERR | |
2478 | "hotkey 0x%04x out of range for keyboard map\n", | |
2479 | hkey); | |
2480 | send_acpi_ev = 1; | |
2481 | } | |
2482 | break; | |
2483 | case 5: | |
2484 | /* 0x5000-0x5FFF: LID */ | |
2485 | /* we don't handle it through this path, just | |
2486 | * eat up known LID events */ | |
2487 | if (hkey != 0x5001 && hkey != 0x5002) { | |
2488 | printk(IBM_ERR | |
3eea123d HMH |
2489 | "unknown LID-related HKEY event: 0x%04x\n", |
2490 | hkey); | |
ff80f137 | 2491 | send_acpi_ev = 1; |
3e5ce914 HMH |
2492 | } else { |
2493 | ignore_acpi_ev = 1; | |
ff80f137 HMH |
2494 | } |
2495 | break; | |
2496 | case 7: | |
2497 | /* 0x7000-0x7FFF: misc */ | |
2498 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2499 | tpacpi_input_send_radiosw(); | |
6a38abbf | 2500 | break; |
6a38abbf | 2501 | } |
ff80f137 HMH |
2502 | /* fallthrough to default */ |
2503 | default: | |
2504 | /* case 2: dock-related */ | |
2505 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
2506 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
2507 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
2508 | printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); | |
2509 | send_acpi_ev = 1; | |
6a38abbf | 2510 | } |
ff80f137 | 2511 | |
3eea123d | 2512 | /* Legacy events */ |
3e5ce914 | 2513 | if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { |
3eea123d | 2514 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); |
3e5ce914 | 2515 | } |
ff80f137 | 2516 | |
3eea123d | 2517 | /* netlink events */ |
3e5ce914 | 2518 | if (!ignore_acpi_ev && send_acpi_ev) { |
3eea123d HMH |
2519 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2520 | ibm->acpi->device->dev.bus_id, | |
2521 | event, hkey); | |
2522 | } | |
56b6aeb0 HMH |
2523 | } |
2524 | } | |
2525 | ||
5c29d58f HMH |
2526 | static void hotkey_resume(void) |
2527 | { | |
b2c985e7 HMH |
2528 | if (hotkey_mask_get()) |
2529 | printk(IBM_ERR "error while trying to read hot key mask from firmware\n"); | |
5c29d58f | 2530 | tpacpi_input_send_radiosw(); |
01e88f25 HMH |
2531 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2532 | hotkey_poll_setup_safe(0); | |
2533 | #endif | |
5c29d58f HMH |
2534 | } |
2535 | ||
a0416420 | 2536 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2537 | static int hotkey_read(char *p) |
1da177e4 | 2538 | { |
ae92bd17 | 2539 | int res, status; |
1da177e4 LT |
2540 | int len = 0; |
2541 | ||
d8fd94d9 | 2542 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2543 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2544 | return len; | |
2545 | } | |
2546 | ||
fc589a3c HMH |
2547 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2548 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2549 | res = hotkey_status_get(&status); |
2550 | if (!res) | |
2551 | res = hotkey_mask_get(); | |
40ca9fdf | 2552 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2553 | if (res) |
2554 | return res; | |
1da177e4 LT |
2555 | |
2556 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2557 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2558 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2559 | len += sprintf(p + len, |
2560 | "commands:\tenable, disable, reset, <mask>\n"); | |
2561 | } else { | |
2562 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2563 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2564 | } | |
2565 | ||
2566 | return len; | |
2567 | } | |
2568 | ||
78f81cc4 | 2569 | static int hotkey_write(char *buf) |
1da177e4 | 2570 | { |
ae92bd17 HMH |
2571 | int res, status; |
2572 | u32 mask; | |
1da177e4 | 2573 | char *cmd; |
1da177e4 | 2574 | |
d8fd94d9 | 2575 | if (!tp_features.hotkey) |
1da177e4 LT |
2576 | return -ENODEV; |
2577 | ||
fc589a3c HMH |
2578 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2579 | return -ERESTARTSYS; | |
40ca9fdf | 2580 | |
b2c985e7 HMH |
2581 | status = -1; |
2582 | mask = hotkey_mask; | |
78f81cc4 | 2583 | |
40ca9fdf | 2584 | res = 0; |
1da177e4 LT |
2585 | while ((cmd = next_cmd(&buf))) { |
2586 | if (strlencmp(cmd, "enable") == 0) { | |
2587 | status = 1; | |
2588 | } else if (strlencmp(cmd, "disable") == 0) { | |
2589 | status = 0; | |
2590 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2591 | status = hotkey_orig_status; |
2592 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2593 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2594 | /* mask set */ | |
2595 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2596 | /* mask set */ | |
40ca9fdf HMH |
2597 | } else { |
2598 | res = -EINVAL; | |
2599 | goto errexit; | |
2600 | } | |
1da177e4 | 2601 | } |
b2c985e7 HMH |
2602 | if (status != -1) |
2603 | res = hotkey_status_set(status); | |
1da177e4 | 2604 | |
b2c985e7 HMH |
2605 | if (!res && mask != hotkey_mask) |
2606 | res = hotkey_mask_set(mask); | |
1da177e4 | 2607 | |
40ca9fdf HMH |
2608 | errexit: |
2609 | mutex_unlock(&hotkey_mutex); | |
2610 | return res; | |
78f81cc4 | 2611 | } |
1da177e4 | 2612 | |
1ba90e3a TR |
2613 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
2614 | {IBM_HKEY_HID, 0}, | |
2615 | {"", 0}, | |
2616 | }; | |
2617 | ||
8d376cd6 | 2618 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2619 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2620 | .notify = hotkey_notify, |
2621 | .handle = &hkey_handle, | |
2622 | .type = ACPI_DEVICE_NOTIFY, | |
2623 | }; | |
2624 | ||
a5763f22 HMH |
2625 | static struct ibm_struct hotkey_driver_data = { |
2626 | .name = "hotkey", | |
a5763f22 HMH |
2627 | .read = hotkey_read, |
2628 | .write = hotkey_write, | |
2629 | .exit = hotkey_exit, | |
5c29d58f | 2630 | .resume = hotkey_resume, |
8d376cd6 | 2631 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2632 | }; |
2633 | ||
56b6aeb0 HMH |
2634 | /************************************************************************* |
2635 | * Bluetooth subdriver | |
2636 | */ | |
1da177e4 | 2637 | |
d3a6ade4 HMH |
2638 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2639 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2640 | struct device_attribute *attr, | |
2641 | char *buf) | |
2642 | { | |
2643 | int status; | |
2644 | ||
2645 | status = bluetooth_get_radiosw(); | |
2646 | if (status < 0) | |
2647 | return status; | |
2648 | ||
2649 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2650 | } | |
2651 | ||
2652 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2653 | struct device_attribute *attr, | |
2654 | const char *buf, size_t count) | |
2655 | { | |
2656 | unsigned long t; | |
2657 | int res; | |
2658 | ||
2659 | if (parse_strtoul(buf, 1, &t)) | |
2660 | return -EINVAL; | |
2661 | ||
2662 | res = bluetooth_set_radiosw(t); | |
2663 | ||
2664 | return (res) ? res : count; | |
2665 | } | |
2666 | ||
2667 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2668 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2669 | bluetooth_enable_show, bluetooth_enable_store); |
2670 | ||
2671 | /* --------------------------------------------------------------------- */ | |
2672 | ||
2673 | static struct attribute *bluetooth_attributes[] = { | |
2674 | &dev_attr_bluetooth_enable.attr, | |
2675 | NULL | |
2676 | }; | |
2677 | ||
2678 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2679 | .attrs = bluetooth_attributes, |
2680 | }; | |
2681 | ||
a5763f22 | 2682 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2683 | { |
d3a6ade4 | 2684 | int res; |
d6fdd1e9 HMH |
2685 | int status = 0; |
2686 | ||
fe08bc4b HMH |
2687 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2688 | ||
8d376cd6 | 2689 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2690 | |
78f81cc4 BD |
2691 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2692 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2693 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2694 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2695 | ||
2696 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2697 | str_supported(tp_features.bluetooth), | |
2698 | status); | |
2699 | ||
d3a6ade4 HMH |
2700 | if (tp_features.bluetooth) { |
2701 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2702 | /* no bluetooth hardware present in system */ | |
2703 | tp_features.bluetooth = 0; | |
2704 | dbg_printk(TPACPI_DBG_INIT, | |
2705 | "bluetooth hardware not installed\n"); | |
2706 | } else { | |
2707 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2708 | &bluetooth_attr_group); | |
2709 | if (res) | |
2710 | return res; | |
2711 | } | |
d6fdd1e9 | 2712 | } |
fe08bc4b | 2713 | |
d8fd94d9 | 2714 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2715 | } |
2716 | ||
d3a6ade4 HMH |
2717 | static void bluetooth_exit(void) |
2718 | { | |
2719 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2720 | &bluetooth_attr_group); | |
2721 | } | |
2722 | ||
d6fdd1e9 | 2723 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2724 | { |
2725 | int status; | |
2726 | ||
d6fdd1e9 HMH |
2727 | if (!tp_features.bluetooth) |
2728 | return -ENODEV; | |
1da177e4 | 2729 | |
d6fdd1e9 HMH |
2730 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2731 | return -EIO; | |
2732 | ||
2733 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2734 | } | |
2735 | ||
2736 | static int bluetooth_set_radiosw(int radio_on) | |
2737 | { | |
2738 | int status; | |
2739 | ||
2740 | if (!tp_features.bluetooth) | |
2741 | return -ENODEV; | |
2742 | ||
2743 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2744 | return -EIO; | |
2745 | if (radio_on) | |
2746 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2747 | else | |
2748 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2749 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2750 | return -EIO; | |
2751 | ||
2752 | return 0; | |
1da177e4 LT |
2753 | } |
2754 | ||
d3a6ade4 | 2755 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2756 | static int bluetooth_read(char *p) |
1da177e4 LT |
2757 | { |
2758 | int len = 0; | |
d6fdd1e9 | 2759 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2760 | |
d8fd94d9 | 2761 | if (!tp_features.bluetooth) |
1da177e4 | 2762 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2763 | else { |
d6fdd1e9 HMH |
2764 | len += sprintf(p + len, "status:\t\t%s\n", |
2765 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2766 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2767 | } | |
2768 | ||
2769 | return len; | |
2770 | } | |
2771 | ||
78f81cc4 | 2772 | static int bluetooth_write(char *buf) |
1da177e4 | 2773 | { |
1da177e4 | 2774 | char *cmd; |
1da177e4 | 2775 | |
d8fd94d9 | 2776 | if (!tp_features.bluetooth) |
78f81cc4 | 2777 | return -ENODEV; |
1da177e4 LT |
2778 | |
2779 | while ((cmd = next_cmd(&buf))) { | |
2780 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2781 | bluetooth_set_radiosw(1); |
1da177e4 | 2782 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2783 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2784 | } else |
2785 | return -EINVAL; | |
1da177e4 LT |
2786 | } |
2787 | ||
1da177e4 LT |
2788 | return 0; |
2789 | } | |
2790 | ||
a5763f22 HMH |
2791 | static struct ibm_struct bluetooth_driver_data = { |
2792 | .name = "bluetooth", | |
2793 | .read = bluetooth_read, | |
2794 | .write = bluetooth_write, | |
d3a6ade4 | 2795 | .exit = bluetooth_exit, |
a5763f22 HMH |
2796 | }; |
2797 | ||
56b6aeb0 HMH |
2798 | /************************************************************************* |
2799 | * Wan subdriver | |
2800 | */ | |
2801 | ||
d3a6ade4 HMH |
2802 | /* sysfs wan enable ---------------------------------------------------- */ |
2803 | static ssize_t wan_enable_show(struct device *dev, | |
2804 | struct device_attribute *attr, | |
2805 | char *buf) | |
2806 | { | |
2807 | int status; | |
2808 | ||
2809 | status = wan_get_radiosw(); | |
2810 | if (status < 0) | |
2811 | return status; | |
2812 | ||
2813 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2814 | } | |
2815 | ||
2816 | static ssize_t wan_enable_store(struct device *dev, | |
2817 | struct device_attribute *attr, | |
2818 | const char *buf, size_t count) | |
2819 | { | |
2820 | unsigned long t; | |
2821 | int res; | |
2822 | ||
2823 | if (parse_strtoul(buf, 1, &t)) | |
2824 | return -EINVAL; | |
2825 | ||
2826 | res = wan_set_radiosw(t); | |
2827 | ||
2828 | return (res) ? res : count; | |
2829 | } | |
2830 | ||
2831 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2832 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2833 | wan_enable_show, wan_enable_store); |
2834 | ||
2835 | /* --------------------------------------------------------------------- */ | |
2836 | ||
2837 | static struct attribute *wan_attributes[] = { | |
2838 | &dev_attr_wan_enable.attr, | |
2839 | NULL | |
2840 | }; | |
2841 | ||
2842 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2843 | .attrs = wan_attributes, |
2844 | }; | |
2845 | ||
a5763f22 | 2846 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2847 | { |
d3a6ade4 | 2848 | int res; |
d6fdd1e9 HMH |
2849 | int status = 0; |
2850 | ||
fe08bc4b HMH |
2851 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2852 | ||
8d376cd6 | 2853 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2854 | |
d8fd94d9 | 2855 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2856 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2857 | ||
2858 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2859 | str_supported(tp_features.wan), | |
2860 | status); | |
2861 | ||
d3a6ade4 HMH |
2862 | if (tp_features.wan) { |
2863 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2864 | /* no wan hardware present in system */ | |
2865 | tp_features.wan = 0; | |
2866 | dbg_printk(TPACPI_DBG_INIT, | |
2867 | "wan hardware not installed\n"); | |
2868 | } else { | |
2869 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2870 | &wan_attr_group); | |
2871 | if (res) | |
2872 | return res; | |
2873 | } | |
d6fdd1e9 | 2874 | } |
fe08bc4b | 2875 | |
d8fd94d9 | 2876 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2877 | } |
2878 | ||
d3a6ade4 HMH |
2879 | static void wan_exit(void) |
2880 | { | |
2881 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2882 | &wan_attr_group); | |
2883 | } | |
2884 | ||
d6fdd1e9 | 2885 | static int wan_get_radiosw(void) |
42adb53c JF |
2886 | { |
2887 | int status; | |
2888 | ||
d6fdd1e9 HMH |
2889 | if (!tp_features.wan) |
2890 | return -ENODEV; | |
42adb53c | 2891 | |
d6fdd1e9 HMH |
2892 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2893 | return -EIO; | |
2894 | ||
2895 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2896 | } | |
2897 | ||
2898 | static int wan_set_radiosw(int radio_on) | |
2899 | { | |
2900 | int status; | |
2901 | ||
2902 | if (!tp_features.wan) | |
2903 | return -ENODEV; | |
2904 | ||
2905 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2906 | return -EIO; | |
2907 | if (radio_on) | |
2908 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2909 | else | |
2910 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2911 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2912 | return -EIO; | |
2913 | ||
2914 | return 0; | |
42adb53c JF |
2915 | } |
2916 | ||
d3a6ade4 | 2917 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2918 | static int wan_read(char *p) |
2919 | { | |
2920 | int len = 0; | |
d6fdd1e9 | 2921 | int status = wan_get_radiosw(); |
42adb53c | 2922 | |
d8fd94d9 | 2923 | if (!tp_features.wan) |
42adb53c | 2924 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2925 | else { |
d6fdd1e9 HMH |
2926 | len += sprintf(p + len, "status:\t\t%s\n", |
2927 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2928 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2929 | } | |
2930 | ||
2931 | return len; | |
2932 | } | |
2933 | ||
2934 | static int wan_write(char *buf) | |
2935 | { | |
42adb53c | 2936 | char *cmd; |
42adb53c | 2937 | |
d8fd94d9 | 2938 | if (!tp_features.wan) |
42adb53c JF |
2939 | return -ENODEV; |
2940 | ||
2941 | while ((cmd = next_cmd(&buf))) { | |
2942 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2943 | wan_set_radiosw(1); |
42adb53c | 2944 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2945 | wan_set_radiosw(0); |
42adb53c JF |
2946 | } else |
2947 | return -EINVAL; | |
42adb53c JF |
2948 | } |
2949 | ||
42adb53c JF |
2950 | return 0; |
2951 | } | |
2952 | ||
a5763f22 HMH |
2953 | static struct ibm_struct wan_driver_data = { |
2954 | .name = "wan", | |
2955 | .read = wan_read, | |
2956 | .write = wan_write, | |
d3a6ade4 | 2957 | .exit = wan_exit, |
92641177 | 2958 | .flags.experimental = 1, |
a5763f22 HMH |
2959 | }; |
2960 | ||
56b6aeb0 HMH |
2961 | /************************************************************************* |
2962 | * Video subdriver | |
2963 | */ | |
2964 | ||
9a8e1738 HMH |
2965 | static enum video_access_mode video_supported; |
2966 | static int video_orig_autosw; | |
78f81cc4 | 2967 | |
56b6aeb0 HMH |
2968 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
2969 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
2970 | "\\_SB.PCI0.VID0", /* 770e */ | |
2971 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
2972 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
2973 | ); /* R30, R31 */ | |
2974 | ||
2975 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
2976 | ||
a5763f22 | 2977 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2978 | { |
78f81cc4 BD |
2979 | int ivga; |
2980 | ||
fe08bc4b HMH |
2981 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2982 | ||
8d376cd6 HMH |
2983 | IBM_ACPIHANDLE_INIT(vid); |
2984 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2985 | |
78f81cc4 BD |
2986 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2987 | /* G41, assume IVGA doesn't change */ | |
2988 | vid_handle = vid2_handle; | |
2989 | ||
2990 | if (!vid_handle) | |
2991 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2992 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2993 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2994 | /* 570 */ | |
efa27145 | 2995 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2996 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2997 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2998 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2999 | else |
3000 | /* all others */ | |
efa27145 | 3001 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 3002 | |
fe08bc4b HMH |
3003 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
3004 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
3005 | video_supported); | |
3006 | ||
5fba344c | 3007 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
3008 | } |
3009 | ||
56b6aeb0 HMH |
3010 | static void video_exit(void) |
3011 | { | |
83f34724 HMH |
3012 | dbg_printk(TPACPI_DBG_EXIT, |
3013 | "restoring original video autoswitch mode\n"); | |
3014 | if (video_autosw_set(video_orig_autosw)) | |
3015 | printk(IBM_ERR "error while trying to restore original " | |
3016 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
3017 | } |
3018 | ||
83f34724 | 3019 | static int video_outputsw_get(void) |
1da177e4 LT |
3020 | { |
3021 | int status = 0; | |
3022 | int i; | |
3023 | ||
83f34724 HMH |
3024 | switch (video_supported) { |
3025 | case TPACPI_VIDEO_570: | |
3026 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
3027 | TP_ACPI_VIDEO_570_PHSCMD)) | |
3028 | return -EIO; | |
3029 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
3030 | break; | |
3031 | case TPACPI_VIDEO_770: | |
3032 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3033 | return -EIO; | |
3034 | if (i) | |
3035 | status |= TP_ACPI_VIDEO_S_LCD; | |
3036 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3037 | return -EIO; | |
3038 | if (i) | |
3039 | status |= TP_ACPI_VIDEO_S_CRT; | |
3040 | break; | |
3041 | case TPACPI_VIDEO_NEW: | |
3042 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3043 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3044 | return -EIO; | |
3045 | if (i) | |
3046 | status |= TP_ACPI_VIDEO_S_CRT; | |
3047 | ||
3048 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3049 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3050 | return -EIO; | |
3051 | if (i) | |
3052 | status |= TP_ACPI_VIDEO_S_LCD; | |
3053 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3054 | return -EIO; | |
3055 | if (i) | |
3056 | status |= TP_ACPI_VIDEO_S_DVI; | |
3057 | break; | |
3058 | default: | |
3059 | return -ENOSYS; | |
78f81cc4 BD |
3060 | } |
3061 | ||
3062 | return status; | |
3063 | } | |
1da177e4 | 3064 | |
83f34724 | 3065 | static int video_outputsw_set(int status) |
78f81cc4 | 3066 | { |
83f34724 HMH |
3067 | int autosw; |
3068 | int res = 0; | |
3069 | ||
3070 | switch (video_supported) { | |
3071 | case TPACPI_VIDEO_570: | |
3072 | res = acpi_evalf(NULL, NULL, | |
3073 | "\\_SB.PHS2", "vdd", | |
3074 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3075 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3076 | break; | |
3077 | case TPACPI_VIDEO_770: | |
3078 | autosw = video_autosw_get(); | |
3079 | if (autosw < 0) | |
3080 | return autosw; | |
1da177e4 | 3081 | |
83f34724 HMH |
3082 | res = video_autosw_set(1); |
3083 | if (res) | |
3084 | return res; | |
3085 | res = acpi_evalf(vid_handle, NULL, | |
3086 | "ASWT", "vdd", status * 0x100, 0); | |
3087 | if (!autosw && video_autosw_set(autosw)) { | |
3088 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
3089 | return -EIO; | |
3090 | } | |
3091 | break; | |
3092 | case TPACPI_VIDEO_NEW: | |
3093 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
3094 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
3095 | break; | |
3096 | default: | |
3097 | return -ENOSYS; | |
3098 | } | |
1da177e4 | 3099 | |
83f34724 | 3100 | return (res)? 0 : -EIO; |
1da177e4 LT |
3101 | } |
3102 | ||
83f34724 | 3103 | static int video_autosw_get(void) |
78f81cc4 | 3104 | { |
83f34724 | 3105 | int autosw = 0; |
78f81cc4 | 3106 | |
83f34724 HMH |
3107 | switch (video_supported) { |
3108 | case TPACPI_VIDEO_570: | |
3109 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3110 | return -EIO; | |
3111 | break; | |
3112 | case TPACPI_VIDEO_770: | |
3113 | case TPACPI_VIDEO_NEW: | |
3114 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3115 | return -EIO; | |
3116 | break; | |
3117 | default: | |
3118 | return -ENOSYS; | |
3119 | } | |
78f81cc4 | 3120 | |
83f34724 | 3121 | return autosw & 1; |
78f81cc4 BD |
3122 | } |
3123 | ||
83f34724 | 3124 | static int video_autosw_set(int enable) |
78f81cc4 | 3125 | { |
83f34724 HMH |
3126 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3127 | return -EIO; | |
3128 | return 0; | |
78f81cc4 BD |
3129 | } |
3130 | ||
83f34724 | 3131 | static int video_outputsw_cycle(void) |
78f81cc4 | 3132 | { |
83f34724 HMH |
3133 | int autosw = video_autosw_get(); |
3134 | int res; | |
78f81cc4 | 3135 | |
83f34724 HMH |
3136 | if (autosw < 0) |
3137 | return autosw; | |
78f81cc4 | 3138 | |
83f34724 HMH |
3139 | switch (video_supported) { |
3140 | case TPACPI_VIDEO_570: | |
3141 | res = video_autosw_set(1); | |
3142 | if (res) | |
3143 | return res; | |
3144 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3145 | break; | |
3146 | case TPACPI_VIDEO_770: | |
3147 | case TPACPI_VIDEO_NEW: | |
3148 | res = video_autosw_set(1); | |
3149 | if (res) | |
3150 | return res; | |
3151 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3152 | break; | |
3153 | default: | |
3154 | return -ENOSYS; | |
3155 | } | |
3156 | if (!autosw && video_autosw_set(autosw)) { | |
3157 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
3158 | return -EIO; | |
78f81cc4 BD |
3159 | } |
3160 | ||
83f34724 HMH |
3161 | return (res)? 0 : -EIO; |
3162 | } | |
3163 | ||
3164 | static int video_expand_toggle(void) | |
3165 | { | |
3166 | switch (video_supported) { | |
3167 | case TPACPI_VIDEO_570: | |
3168 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3169 | 0 : -EIO; | |
3170 | case TPACPI_VIDEO_770: | |
3171 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3172 | 0 : -EIO; | |
3173 | case TPACPI_VIDEO_NEW: | |
3174 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3175 | 0 : -EIO; | |
3176 | default: | |
3177 | return -ENOSYS; | |
3178 | } | |
3179 | /* not reached */ | |
78f81cc4 BD |
3180 | } |
3181 | ||
56b6aeb0 HMH |
3182 | static int video_read(char *p) |
3183 | { | |
83f34724 | 3184 | int status, autosw; |
56b6aeb0 HMH |
3185 | int len = 0; |
3186 | ||
83f34724 | 3187 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3188 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3189 | return len; | |
3190 | } | |
3191 | ||
83f34724 HMH |
3192 | status = video_outputsw_get(); |
3193 | if (status < 0) | |
3194 | return status; | |
3195 | ||
3196 | autosw = video_autosw_get(); | |
3197 | if (autosw < 0) | |
3198 | return autosw; | |
3199 | ||
56b6aeb0 HMH |
3200 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3201 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3202 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3203 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3204 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3205 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3206 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3207 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3208 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3209 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3210 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3211 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3212 | ||
3213 | return len; | |
3214 | } | |
3215 | ||
78f81cc4 | 3216 | static int video_write(char *buf) |
1da177e4 LT |
3217 | { |
3218 | char *cmd; | |
3219 | int enable, disable, status; | |
83f34724 | 3220 | int res; |
1da177e4 | 3221 | |
83f34724 | 3222 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3223 | return -ENODEV; |
3224 | ||
83f34724 HMH |
3225 | enable = 0; |
3226 | disable = 0; | |
1da177e4 LT |
3227 | |
3228 | while ((cmd = next_cmd(&buf))) { | |
3229 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3230 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3231 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3232 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3233 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3234 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3235 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3236 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3237 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3238 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3239 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3240 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3241 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3242 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3243 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3244 | res = video_autosw_set(1); |
3245 | if (res) | |
3246 | return res; | |
1da177e4 | 3247 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3248 | res = video_autosw_set(0); |
3249 | if (res) | |
3250 | return res; | |
1da177e4 | 3251 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3252 | res = video_outputsw_cycle(); |
3253 | if (res) | |
3254 | return res; | |
1da177e4 | 3255 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3256 | res = video_expand_toggle(); |
3257 | if (res) | |
3258 | return res; | |
1da177e4 LT |
3259 | } else |
3260 | return -EINVAL; | |
3261 | } | |
3262 | ||
3263 | if (enable || disable) { | |
83f34724 HMH |
3264 | status = video_outputsw_get(); |
3265 | if (status < 0) | |
3266 | return status; | |
3267 | res = video_outputsw_set((status & ~disable) | enable); | |
3268 | if (res) | |
3269 | return res; | |
1da177e4 LT |
3270 | } |
3271 | ||
3272 | return 0; | |
3273 | } | |
3274 | ||
a5763f22 HMH |
3275 | static struct ibm_struct video_driver_data = { |
3276 | .name = "video", | |
3277 | .read = video_read, | |
3278 | .write = video_write, | |
3279 | .exit = video_exit, | |
3280 | }; | |
3281 | ||
56b6aeb0 HMH |
3282 | /************************************************************************* |
3283 | * Light (thinklight) subdriver | |
3284 | */ | |
1da177e4 | 3285 | |
56b6aeb0 HMH |
3286 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3287 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
3288 | ||
a5763f22 | 3289 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3290 | { |
fe08bc4b HMH |
3291 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3292 | ||
8d376cd6 HMH |
3293 | IBM_ACPIHANDLE_INIT(ledb); |
3294 | IBM_ACPIHANDLE_INIT(lght); | |
3295 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 3296 | |
78f81cc4 | 3297 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3298 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3299 | |
d8fd94d9 | 3300 | if (tp_features.light) |
78f81cc4 BD |
3301 | /* light status not supported on |
3302 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3303 | tp_features.light_status = |
3304 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3305 | |
fe08bc4b | 3306 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3307 | str_supported(tp_features.light)); |
fe08bc4b | 3308 | |
d8fd94d9 | 3309 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
3310 | } |
3311 | ||
78f81cc4 | 3312 | static int light_read(char *p) |
1da177e4 LT |
3313 | { |
3314 | int len = 0; | |
3315 | int status = 0; | |
3316 | ||
d8fd94d9 | 3317 | if (!tp_features.light) { |
78f81cc4 | 3318 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3319 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3320 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3321 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3322 | } else { | |
1da177e4 LT |
3323 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
3324 | return -EIO; | |
3325 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
3326 | len += sprintf(p + len, "commands:\ton, off\n"); |
3327 | } | |
1da177e4 LT |
3328 | |
3329 | return len; | |
3330 | } | |
3331 | ||
78f81cc4 | 3332 | static int light_write(char *buf) |
1da177e4 LT |
3333 | { |
3334 | int cmos_cmd, lght_cmd; | |
3335 | char *cmd; | |
3336 | int success; | |
78f81cc4 | 3337 | |
d8fd94d9 | 3338 | if (!tp_features.light) |
78f81cc4 BD |
3339 | return -ENODEV; |
3340 | ||
1da177e4 LT |
3341 | while ((cmd = next_cmd(&buf))) { |
3342 | if (strlencmp(cmd, "on") == 0) { | |
3343 | cmos_cmd = 0x0c; | |
3344 | lght_cmd = 1; | |
3345 | } else if (strlencmp(cmd, "off") == 0) { | |
3346 | cmos_cmd = 0x0d; | |
3347 | lght_cmd = 0; | |
3348 | } else | |
3349 | return -EINVAL; | |
78f81cc4 | 3350 | |
1da177e4 | 3351 | success = cmos_handle ? |
78f81cc4 BD |
3352 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
3353 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
3354 | if (!success) |
3355 | return -EIO; | |
3356 | } | |
3357 | ||
3358 | return 0; | |
3359 | } | |
3360 | ||
a5763f22 HMH |
3361 | static struct ibm_struct light_driver_data = { |
3362 | .name = "light", | |
3363 | .read = light_read, | |
3364 | .write = light_write, | |
3365 | }; | |
3366 | ||
56b6aeb0 HMH |
3367 | /************************************************************************* |
3368 | * Dock subdriver | |
3369 | */ | |
1da177e4 | 3370 | |
85998248 | 3371 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
3372 | |
3373 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
3374 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
3375 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3376 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3377 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3378 | ||
5fba344c HMH |
3379 | /* don't list other alternatives as we install a notify handler on the 570 */ |
3380 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
3381 | ||
1ba90e3a TR |
3382 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3383 | {PCI_ROOT_HID_STRING, 0}, | |
3384 | {"", 0}, | |
3385 | }; | |
3386 | ||
d94a7f16 HMH |
3387 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3388 | { | |
3389 | .notify = dock_notify, | |
3390 | .handle = &dock_handle, | |
3391 | .type = ACPI_SYSTEM_NOTIFY, | |
3392 | }, | |
3393 | { | |
996fba08 HMH |
3394 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3395 | * We just use it to get notifications of dock hotplug | |
3396 | * in very old thinkpads */ | |
1ba90e3a | 3397 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3398 | .notify = dock_notify, |
3399 | .handle = &pci_handle, | |
3400 | .type = ACPI_SYSTEM_NOTIFY, | |
3401 | }, | |
3402 | }; | |
3403 | ||
3404 | static struct ibm_struct dock_driver_data[2] = { | |
3405 | { | |
3406 | .name = "dock", | |
3407 | .read = dock_read, | |
3408 | .write = dock_write, | |
3409 | .acpi = &ibm_dock_acpidriver[0], | |
3410 | }, | |
3411 | { | |
3412 | .name = "dock", | |
3413 | .acpi = &ibm_dock_acpidriver[1], | |
3414 | }, | |
3415 | }; | |
3416 | ||
1da177e4 LT |
3417 | #define dock_docked() (_sta(dock_handle) & 1) |
3418 | ||
a5763f22 | 3419 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3420 | { |
fe08bc4b HMH |
3421 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3422 | ||
8d376cd6 | 3423 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 3424 | |
fe08bc4b HMH |
3425 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3426 | str_supported(dock_handle != NULL)); | |
3427 | ||
5fba344c HMH |
3428 | return (dock_handle)? 0 : 1; |
3429 | } | |
3430 | ||
d94a7f16 HMH |
3431 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3432 | { | |
3433 | int dock2_needed; | |
3434 | ||
3435 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3436 | ||
3437 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3438 | dock_driver_data[0].flags.acpi_notify_installed) { | |
3439 | IBM_ACPIHANDLE_INIT(pci); | |
3440 | dock2_needed = (pci_handle != NULL); | |
3441 | vdbg_printk(TPACPI_DBG_INIT, | |
3442 | "dock PCI handler for the TP 570 is %s\n", | |
3443 | str_supported(dock2_needed)); | |
3444 | } else { | |
3445 | vdbg_printk(TPACPI_DBG_INIT, | |
3446 | "dock subdriver part 2 not required\n"); | |
3447 | dock2_needed = 0; | |
3448 | } | |
3449 | ||
3450 | return (dock2_needed)? 0 : 1; | |
3451 | } | |
3452 | ||
56b6aeb0 HMH |
3453 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3454 | { | |
3455 | int docked = dock_docked(); | |
1ba90e3a TR |
3456 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3457 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3458 | int data; |
56b6aeb0 HMH |
3459 | |
3460 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3461 | data = 1; /* button */ |
56b6aeb0 | 3462 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3463 | data = 3; /* dock */ |
56b6aeb0 | 3464 | else if (event == 3 && docked) |
962ce8ca | 3465 | data = 1; /* button */ |
56b6aeb0 | 3466 | else if (event == 3 && !docked) |
962ce8ca | 3467 | data = 2; /* undock */ |
56b6aeb0 | 3468 | else if (event == 0 && docked) |
962ce8ca | 3469 | data = 3; /* dock */ |
56b6aeb0 HMH |
3470 | else { |
3471 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
3472 | event, _sta(dock_handle)); | |
962ce8ca | 3473 | data = 0; /* unknown */ |
56b6aeb0 | 3474 | } |
14e04fb3 | 3475 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3476 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3477 | ibm->acpi->device->dev.bus_id, | |
3478 | event, data); | |
56b6aeb0 HMH |
3479 | } |
3480 | ||
78f81cc4 | 3481 | static int dock_read(char *p) |
1da177e4 LT |
3482 | { |
3483 | int len = 0; | |
3484 | int docked = dock_docked(); | |
3485 | ||
3486 | if (!dock_handle) | |
3487 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3488 | else if (!docked) | |
3489 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3490 | else { | |
3491 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3492 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3493 | } | |
3494 | ||
3495 | return len; | |
3496 | } | |
3497 | ||
78f81cc4 | 3498 | static int dock_write(char *buf) |
1da177e4 LT |
3499 | { |
3500 | char *cmd; | |
3501 | ||
3502 | if (!dock_docked()) | |
78f81cc4 | 3503 | return -ENODEV; |
1da177e4 LT |
3504 | |
3505 | while ((cmd = next_cmd(&buf))) { | |
3506 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3507 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3508 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3509 | return -EIO; |
3510 | } else if (strlencmp(cmd, "dock") == 0) { | |
3511 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3512 | return -EIO; | |
3513 | } else | |
3514 | return -EINVAL; | |
1da177e4 | 3515 | } |
56b6aeb0 HMH |
3516 | |
3517 | return 0; | |
1da177e4 | 3518 | } |
56b6aeb0 | 3519 | |
85998248 | 3520 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3521 | |
3522 | /************************************************************************* | |
3523 | * Bay subdriver | |
3524 | */ | |
1da177e4 | 3525 | |
85998248 | 3526 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
3527 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
3528 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
3529 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3530 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3531 | ); /* A21e, R30, R31 */ | |
3532 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
3533 | "_EJ0", /* all others */ | |
3534 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
3535 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
3536 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
3537 | ); /* all others */ | |
3538 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
3539 | "_EJ0", /* 770x */ | |
3540 | ); /* all others */ | |
3541 | ||
a5763f22 | 3542 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3543 | { |
fe08bc4b HMH |
3544 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3545 | ||
8d376cd6 | 3546 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 3547 | if (bay_handle) |
8d376cd6 HMH |
3548 | IBM_ACPIHANDLE_INIT(bay_ej); |
3549 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3550 | if (bay2_handle) |
8d376cd6 | 3551 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3552 | |
d8fd94d9 HMH |
3553 | tp_features.bay_status = bay_handle && |
3554 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3555 | tp_features.bay_status2 = bay2_handle && | |
3556 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3557 | |
d8fd94d9 HMH |
3558 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3559 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3560 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3561 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3562 | |
fe08bc4b HMH |
3563 | vdbg_printk(TPACPI_DBG_INIT, |
3564 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3565 | str_supported(tp_features.bay_status), |
3566 | str_supported(tp_features.bay_eject), | |
3567 | str_supported(tp_features.bay_status2), | |
3568 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3569 | |
d8fd94d9 HMH |
3570 | return (tp_features.bay_status || tp_features.bay_eject || |
3571 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3572 | } |
3573 | ||
56b6aeb0 HMH |
3574 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3575 | { | |
14e04fb3 | 3576 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3577 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3578 | ibm->acpi->device->dev.bus_id, | |
3579 | event, 0); | |
56b6aeb0 HMH |
3580 | } |
3581 | ||
78f81cc4 BD |
3582 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3583 | ||
3584 | static int bay_read(char *p) | |
1da177e4 LT |
3585 | { |
3586 | int len = 0; | |
78f81cc4 BD |
3587 | int occupied = bay_occupied(bay); |
3588 | int occupied2 = bay_occupied(bay2); | |
3589 | int eject, eject2; | |
3590 | ||
d8fd94d9 HMH |
3591 | len += sprintf(p + len, "status:\t\t%s\n", |
3592 | tp_features.bay_status ? | |
3593 | (occupied ? "occupied" : "unoccupied") : | |
3594 | "not supported"); | |
3595 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3596 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3597 | "occupied" : "unoccupied"); | |
3598 | ||
d8fd94d9 HMH |
3599 | eject = tp_features.bay_eject && occupied; |
3600 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3601 | |
3602 | if (eject && eject2) | |
3603 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3604 | else if (eject) | |
1da177e4 | 3605 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3606 | else if (eject2) |
3607 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3608 | |
3609 | return len; | |
3610 | } | |
3611 | ||
78f81cc4 | 3612 | static int bay_write(char *buf) |
1da177e4 LT |
3613 | { |
3614 | char *cmd; | |
3615 | ||
d8fd94d9 | 3616 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3617 | return -ENODEV; |
3618 | ||
1da177e4 | 3619 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3620 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3621 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3622 | return -EIO; | |
d8fd94d9 | 3623 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3624 | strlencmp(cmd, "eject2") == 0) { |
3625 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3626 | return -EIO; |
3627 | } else | |
3628 | return -EINVAL; | |
3629 | } | |
3630 | ||
3631 | return 0; | |
78f81cc4 | 3632 | } |
a5763f22 | 3633 | |
8d376cd6 HMH |
3634 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3635 | .notify = bay_notify, | |
3636 | .handle = &bay_handle, | |
3637 | .type = ACPI_SYSTEM_NOTIFY, | |
3638 | }; | |
3639 | ||
a5763f22 HMH |
3640 | static struct ibm_struct bay_driver_data = { |
3641 | .name = "bay", | |
3642 | .read = bay_read, | |
3643 | .write = bay_write, | |
8d376cd6 | 3644 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3645 | }; |
3646 | ||
85998248 | 3647 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3648 | |
56b6aeb0 HMH |
3649 | /************************************************************************* |
3650 | * CMOS subdriver | |
3651 | */ | |
3652 | ||
b616004c HMH |
3653 | /* sysfs cmos_command -------------------------------------------------- */ |
3654 | static ssize_t cmos_command_store(struct device *dev, | |
3655 | struct device_attribute *attr, | |
3656 | const char *buf, size_t count) | |
3657 | { | |
3658 | unsigned long cmos_cmd; | |
3659 | int res; | |
3660 | ||
3661 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3662 | return -EINVAL; | |
3663 | ||
3664 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3665 | return (res)? res : count; | |
3666 | } | |
3667 | ||
3668 | static struct device_attribute dev_attr_cmos_command = | |
3669 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3670 | ||
3671 | /* --------------------------------------------------------------------- */ | |
3672 | ||
a5763f22 | 3673 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3674 | { |
b616004c HMH |
3675 | int res; |
3676 | ||
fe08bc4b HMH |
3677 | vdbg_printk(TPACPI_DBG_INIT, |
3678 | "initializing cmos commands subdriver\n"); | |
3679 | ||
8d376cd6 | 3680 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 3681 | |
fe08bc4b HMH |
3682 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3683 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3684 | |
3685 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3686 | if (res) | |
3687 | return res; | |
3688 | ||
5fba344c HMH |
3689 | return (cmos_handle)? 0 : 1; |
3690 | } | |
3691 | ||
b616004c HMH |
3692 | static void cmos_exit(void) |
3693 | { | |
3694 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3695 | } | |
3696 | ||
78f81cc4 | 3697 | static int cmos_read(char *p) |
1da177e4 LT |
3698 | { |
3699 | int len = 0; | |
3700 | ||
78f81cc4 BD |
3701 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3702 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3703 | if (!cmos_handle) |
3704 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3705 | else { | |
3706 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3707 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3708 | } |
3709 | ||
3710 | return len; | |
3711 | } | |
3712 | ||
78f81cc4 | 3713 | static int cmos_write(char *buf) |
1da177e4 LT |
3714 | { |
3715 | char *cmd; | |
c9bea99c | 3716 | int cmos_cmd, res; |
1da177e4 LT |
3717 | |
3718 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3719 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3720 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3721 | /* cmos_cmd set */ |
3722 | } else | |
3723 | return -EINVAL; | |
3724 | ||
c9bea99c HMH |
3725 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3726 | if (res) | |
3727 | return res; | |
1da177e4 LT |
3728 | } |
3729 | ||
3730 | return 0; | |
78f81cc4 BD |
3731 | } |
3732 | ||
a5763f22 HMH |
3733 | static struct ibm_struct cmos_driver_data = { |
3734 | .name = "cmos", | |
3735 | .read = cmos_read, | |
3736 | .write = cmos_write, | |
b616004c | 3737 | .exit = cmos_exit, |
a5763f22 | 3738 | }; |
56b6aeb0 HMH |
3739 | |
3740 | /************************************************************************* | |
3741 | * LED subdriver | |
3742 | */ | |
3743 | ||
9a8e1738 | 3744 | static enum led_access_mode led_supported; |
78f81cc4 | 3745 | |
56b6aeb0 HMH |
3746 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
3747 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3748 | "LED", /* all others */ | |
3749 | ); /* R30, R31 */ | |
3750 | ||
a5763f22 | 3751 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3752 | { |
fe08bc4b HMH |
3753 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3754 | ||
8d376cd6 | 3755 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 3756 | |
78f81cc4 BD |
3757 | if (!led_handle) |
3758 | /* led not supported on R30, R31 */ | |
efa27145 | 3759 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3760 | else if (strlencmp(led_path, "SLED") == 0) |
3761 | /* 570 */ | |
efa27145 | 3762 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3763 | else if (strlencmp(led_path, "SYSL") == 0) |
3764 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3765 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3766 | else |
3767 | /* all others */ | |
efa27145 | 3768 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3769 | |
fe08bc4b HMH |
3770 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3771 | str_supported(led_supported), led_supported); | |
3772 | ||
5fba344c | 3773 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3774 | } |
3775 | ||
3776 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3777 | ||
3778 | static int led_read(char *p) | |
1da177e4 LT |
3779 | { |
3780 | int len = 0; | |
3781 | ||
78f81cc4 BD |
3782 | if (!led_supported) { |
3783 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3784 | return len; | |
3785 | } | |
3786 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3787 | ||
efa27145 | 3788 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3789 | /* 570 */ |
3790 | int i, status; | |
3791 | for (i = 0; i < 8; i++) { | |
3792 | if (!acpi_evalf(ec_handle, | |
3793 | &status, "GLED", "dd", 1 << i)) | |
3794 | return -EIO; | |
3795 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3796 | i, led_status(status)); | |
3797 | } | |
3798 | } | |
3799 | ||
1da177e4 | 3800 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3801 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3802 | |
3803 | return len; | |
3804 | } | |
3805 | ||
78f81cc4 BD |
3806 | /* off, on, blink */ |
3807 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3808 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3809 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3810 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3811 | ||
78f81cc4 | 3812 | static int led_write(char *buf) |
1da177e4 LT |
3813 | { |
3814 | char *cmd; | |
78f81cc4 BD |
3815 | int led, ind, ret; |
3816 | ||
3817 | if (!led_supported) | |
3818 | return -ENODEV; | |
1da177e4 LT |
3819 | |
3820 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3821 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3822 | return -EINVAL; |
3823 | ||
78f81cc4 BD |
3824 | if (strstr(cmd, "off")) { |
3825 | ind = 0; | |
1da177e4 | 3826 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3827 | ind = 1; |
3828 | } else if (strstr(cmd, "blink")) { | |
3829 | ind = 2; | |
1da177e4 LT |
3830 | } else |
3831 | return -EINVAL; | |
78f81cc4 | 3832 | |
efa27145 | 3833 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3834 | /* 570 */ |
3835 | led = 1 << led; | |
1da177e4 | 3836 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3837 | led, led_sled_arg1[ind])) |
1da177e4 | 3838 | return -EIO; |
efa27145 | 3839 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3840 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3841 | led = 1 << led; | |
efa27145 | 3842 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
3843 | if (ret >= 0) |
3844 | ret = | |
efa27145 | 3845 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 3846 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
3847 | if (ret >= 0) |
3848 | ret = | |
efa27145 | 3849 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 3850 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
3851 | if (ret < 0) |
3852 | return ret; | |
3853 | } else { | |
3854 | /* all others */ | |
3855 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3856 | led, led_led_arg1[ind])) | |
1da177e4 | 3857 | return -EIO; |
78f81cc4 BD |
3858 | } |
3859 | } | |
3860 | ||
3861 | return 0; | |
3862 | } | |
3863 | ||
a5763f22 HMH |
3864 | static struct ibm_struct led_driver_data = { |
3865 | .name = "led", | |
3866 | .read = led_read, | |
3867 | .write = led_write, | |
3868 | }; | |
3869 | ||
56b6aeb0 HMH |
3870 | /************************************************************************* |
3871 | * Beep subdriver | |
3872 | */ | |
3873 | ||
3874 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
3875 | ||
a5763f22 | 3876 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3877 | { |
fe08bc4b HMH |
3878 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3879 | ||
8d376cd6 | 3880 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 3881 | |
fe08bc4b HMH |
3882 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3883 | str_supported(beep_handle != NULL)); | |
3884 | ||
5fba344c HMH |
3885 | return (beep_handle)? 0 : 1; |
3886 | } | |
3887 | ||
78f81cc4 BD |
3888 | static int beep_read(char *p) |
3889 | { | |
3890 | int len = 0; | |
3891 | ||
3892 | if (!beep_handle) | |
3893 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3894 | else { | |
3895 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3896 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3897 | } | |
3898 | ||
3899 | return len; | |
3900 | } | |
3901 | ||
3902 | static int beep_write(char *buf) | |
3903 | { | |
3904 | char *cmd; | |
3905 | int beep_cmd; | |
3906 | ||
3907 | if (!beep_handle) | |
3908 | return -ENODEV; | |
3909 | ||
3910 | while ((cmd = next_cmd(&buf))) { | |
3911 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3912 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3913 | /* beep_cmd set */ | |
3914 | } else | |
3915 | return -EINVAL; | |
3916 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3917 | return -EIO; | |
3918 | } | |
3919 | ||
3920 | return 0; | |
3921 | } | |
3922 | ||
a5763f22 HMH |
3923 | static struct ibm_struct beep_driver_data = { |
3924 | .name = "beep", | |
3925 | .read = beep_read, | |
3926 | .write = beep_write, | |
3927 | }; | |
3928 | ||
56b6aeb0 HMH |
3929 | /************************************************************************* |
3930 | * Thermal subdriver | |
3931 | */ | |
78f81cc4 | 3932 | |
a26f878a | 3933 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3934 | |
2c37aa4e HMH |
3935 | /* sysfs temp##_input -------------------------------------------------- */ |
3936 | ||
3937 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3938 | struct device_attribute *attr, | |
3939 | char *buf) | |
3940 | { | |
3941 | struct sensor_device_attribute *sensor_attr = | |
3942 | to_sensor_dev_attr(attr); | |
3943 | int idx = sensor_attr->index; | |
3944 | s32 value; | |
3945 | int res; | |
3946 | ||
3947 | res = thermal_get_sensor(idx, &value); | |
3948 | if (res) | |
3949 | return res; | |
3950 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3951 | return -ENXIO; | |
3952 | ||
3953 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3954 | } | |
3955 | ||
3956 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
3957 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
3958 | ||
3959 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3960 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3961 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3962 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3963 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3964 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3965 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3966 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3967 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3968 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3969 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3970 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3971 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3972 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3973 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3974 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3975 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3976 | }; | |
3977 | ||
3978 | #define THERMAL_ATTRS(X) \ | |
3979 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3980 | ||
3981 | static struct attribute *thermal_temp_input_attr[] = { | |
3982 | THERMAL_ATTRS(8), | |
3983 | THERMAL_ATTRS(9), | |
3984 | THERMAL_ATTRS(10), | |
3985 | THERMAL_ATTRS(11), | |
3986 | THERMAL_ATTRS(12), | |
3987 | THERMAL_ATTRS(13), | |
3988 | THERMAL_ATTRS(14), | |
3989 | THERMAL_ATTRS(15), | |
3990 | THERMAL_ATTRS(0), | |
3991 | THERMAL_ATTRS(1), | |
3992 | THERMAL_ATTRS(2), | |
3993 | THERMAL_ATTRS(3), | |
3994 | THERMAL_ATTRS(4), | |
3995 | THERMAL_ATTRS(5), | |
3996 | THERMAL_ATTRS(6), | |
3997 | THERMAL_ATTRS(7), | |
3998 | NULL | |
3999 | }; | |
4000 | ||
4001 | static const struct attribute_group thermal_temp_input16_group = { | |
4002 | .attrs = thermal_temp_input_attr | |
4003 | }; | |
4004 | ||
4005 | static const struct attribute_group thermal_temp_input8_group = { | |
4006 | .attrs = &thermal_temp_input_attr[8] | |
4007 | }; | |
4008 | ||
4009 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4010 | #undef THERMAL_ATTRS | |
4011 | ||
4012 | /* --------------------------------------------------------------------- */ | |
4013 | ||
a5763f22 | 4014 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4015 | { |
60eb0b35 HMH |
4016 | u8 t, ta1, ta2; |
4017 | int i; | |
5fba344c | 4018 | int acpi_tmp7; |
2c37aa4e | 4019 | int res; |
5fba344c | 4020 | |
fe08bc4b HMH |
4021 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4022 | ||
5fba344c | 4023 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4024 | |
3d6f99ca | 4025 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4026 | /* |
4027 | * Direct EC access mode: sensors at registers | |
4028 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4029 | * non-implemented, thermal sensors return 0x80 when | |
4030 | * not available | |
4031 | */ | |
78f81cc4 | 4032 | |
60eb0b35 HMH |
4033 | ta1 = ta2 = 0; |
4034 | for (i = 0; i < 8; i++) { | |
04cc862c | 4035 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4036 | ta1 |= t; |
4037 | } else { | |
4038 | ta1 = 0; | |
4039 | break; | |
4040 | } | |
04cc862c | 4041 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4042 | ta2 |= t; |
4043 | } else { | |
4044 | ta1 = 0; | |
4045 | break; | |
4046 | } | |
4047 | } | |
4048 | if (ta1 == 0) { | |
4049 | /* This is sheer paranoia, but we handle it anyway */ | |
4050 | if (acpi_tmp7) { | |
4051 | printk(IBM_ERR | |
4052 | "ThinkPad ACPI EC access misbehaving, " | |
4053 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 4054 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
4055 | } else { |
4056 | printk(IBM_ERR | |
4057 | "ThinkPad ACPI EC access misbehaving, " | |
4058 | "disabling thermal sensors access\n"); | |
efa27145 | 4059 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4060 | } |
4061 | } else { | |
4062 | thermal_read_mode = | |
4063 | (ta2 != 0) ? | |
efa27145 | 4064 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4065 | } |
4066 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4067 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4068 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4069 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4070 | } else { |
4071 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4072 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4073 | } |
4074 | } else { | |
4075 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4076 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4077 | } |
78f81cc4 | 4078 | |
fe08bc4b HMH |
4079 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4080 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4081 | thermal_read_mode); | |
4082 | ||
2c37aa4e HMH |
4083 | switch(thermal_read_mode) { |
4084 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 4085 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4086 | &thermal_temp_input16_group); |
4087 | if (res) | |
4088 | return res; | |
4089 | break; | |
4090 | case TPACPI_THERMAL_TPEC_8: | |
4091 | case TPACPI_THERMAL_ACPI_TMP07: | |
4092 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4093 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4094 | &thermal_temp_input8_group); |
4095 | if (res) | |
4096 | return res; | |
4097 | break; | |
4098 | case TPACPI_THERMAL_NONE: | |
4099 | default: | |
4100 | return 1; | |
4101 | } | |
4102 | ||
4103 | return 0; | |
4104 | } | |
4105 | ||
4106 | static void thermal_exit(void) | |
4107 | { | |
4108 | switch(thermal_read_mode) { | |
4109 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 4110 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4111 | &thermal_temp_input16_group); |
4112 | break; | |
4113 | case TPACPI_THERMAL_TPEC_8: | |
4114 | case TPACPI_THERMAL_ACPI_TMP07: | |
4115 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4116 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4117 | &thermal_temp_input16_group); |
4118 | break; | |
4119 | case TPACPI_THERMAL_NONE: | |
4120 | default: | |
4121 | break; | |
4122 | } | |
78f81cc4 BD |
4123 | } |
4124 | ||
04cc862c HMH |
4125 | /* idx is zero-based */ |
4126 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 4127 | { |
04cc862c | 4128 | int t; |
60eb0b35 | 4129 | s8 tmp; |
04cc862c | 4130 | char tmpi[5]; |
78f81cc4 | 4131 | |
04cc862c | 4132 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 4133 | |
a26f878a | 4134 | switch (thermal_read_mode) { |
efa27145 HMH |
4135 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
4136 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
4137 | if (idx >= 8 && idx <= 15) { |
4138 | t = TP_EC_THERMAL_TMP8; | |
4139 | idx -= 8; | |
60eb0b35 HMH |
4140 | } |
4141 | /* fallthrough */ | |
4142 | #endif | |
efa27145 | 4143 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
4144 | if (idx <= 7) { |
4145 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 4146 | return -EIO; |
04cc862c HMH |
4147 | *value = tmp * 1000; |
4148 | return 0; | |
60eb0b35 | 4149 | } |
04cc862c | 4150 | break; |
78f81cc4 | 4151 | |
efa27145 | 4152 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
4153 | if (idx <= 7) { |
4154 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4155 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
4156 | return -EIO; | |
78f81cc4 BD |
4157 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
4158 | return -EIO; | |
04cc862c HMH |
4159 | *value = (t - 2732) * 100; |
4160 | return 0; | |
78f81cc4 | 4161 | } |
04cc862c | 4162 | break; |
78f81cc4 | 4163 | |
efa27145 | 4164 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
4165 | if (idx <= 7) { |
4166 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
4167 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
4168 | return -EIO; | |
a8fba3da HMH |
4169 | if (t > 127 || t < -127) |
4170 | t = TP_EC_THERMAL_TMP_NA; | |
04cc862c HMH |
4171 | *value = t * 1000; |
4172 | return 0; | |
78f81cc4 | 4173 | } |
04cc862c | 4174 | break; |
78f81cc4 | 4175 | |
efa27145 | 4176 | case TPACPI_THERMAL_NONE: |
a26f878a | 4177 | default: |
04cc862c HMH |
4178 | return -ENOSYS; |
4179 | } | |
4180 | ||
4181 | return -EINVAL; | |
4182 | } | |
4183 | ||
4184 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
4185 | { | |
4186 | int res, i; | |
4187 | int n; | |
4188 | ||
4189 | n = 8; | |
4190 | i = 0; | |
4191 | ||
4192 | if (!s) | |
4193 | return -EINVAL; | |
4194 | ||
4195 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
4196 | n = 16; | |
4197 | ||
4198 | for(i = 0 ; i < n; i++) { | |
4199 | res = thermal_get_sensor(i, &s->temp[i]); | |
4200 | if (res) | |
4201 | return res; | |
78f81cc4 | 4202 | } |
04cc862c HMH |
4203 | |
4204 | return n; | |
a26f878a HMH |
4205 | } |
4206 | ||
4207 | static int thermal_read(char *p) | |
4208 | { | |
4209 | int len = 0; | |
4210 | int n, i; | |
4211 | struct ibm_thermal_sensors_struct t; | |
4212 | ||
4213 | n = thermal_get_sensors(&t); | |
4214 | if (unlikely(n < 0)) | |
4215 | return n; | |
4216 | ||
4217 | len += sprintf(p + len, "temperatures:\t"); | |
4218 | ||
4219 | if (n > 0) { | |
4220 | for (i = 0; i < (n - 1); i++) | |
4221 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4222 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4223 | } else | |
4224 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4225 | |
4226 | return len; | |
4227 | } | |
4228 | ||
a5763f22 HMH |
4229 | static struct ibm_struct thermal_driver_data = { |
4230 | .name = "thermal", | |
4231 | .read = thermal_read, | |
2c37aa4e | 4232 | .exit = thermal_exit, |
a5763f22 HMH |
4233 | }; |
4234 | ||
56b6aeb0 HMH |
4235 | /************************************************************************* |
4236 | * EC Dump subdriver | |
4237 | */ | |
4238 | ||
78f81cc4 BD |
4239 | static u8 ecdump_regs[256]; |
4240 | ||
4241 | static int ecdump_read(char *p) | |
4242 | { | |
4243 | int len = 0; | |
4244 | int i, j; | |
4245 | u8 v; | |
4246 | ||
4247 | len += sprintf(p + len, "EC " | |
4248 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4249 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4250 | for (i = 0; i < 256; i += 16) { | |
4251 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4252 | for (j = 0; j < 16; j++) { | |
4253 | if (!acpi_ec_read(i + j, &v)) | |
4254 | break; | |
4255 | if (v != ecdump_regs[i + j]) | |
4256 | len += sprintf(p + len, " *%02x", v); | |
4257 | else | |
4258 | len += sprintf(p + len, " %02x", v); | |
4259 | ecdump_regs[i + j] = v; | |
4260 | } | |
4261 | len += sprintf(p + len, "\n"); | |
4262 | if (j != 16) | |
4263 | break; | |
4264 | } | |
4265 | ||
4266 | /* These are way too dangerous to advertise openly... */ | |
4267 | #if 0 | |
4268 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4269 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4270 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4271 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4272 | #endif | |
4273 | return len; | |
4274 | } | |
4275 | ||
4276 | static int ecdump_write(char *buf) | |
4277 | { | |
4278 | char *cmd; | |
4279 | int i, v; | |
4280 | ||
4281 | while ((cmd = next_cmd(&buf))) { | |
4282 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4283 | /* i and v set */ | |
4284 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4285 | /* i and v set */ | |
4286 | } else | |
4287 | return -EINVAL; | |
4288 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4289 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4290 | return -EIO; |
4291 | } else | |
4292 | return -EINVAL; | |
4293 | } | |
4294 | ||
4295 | return 0; | |
78f81cc4 BD |
4296 | } |
4297 | ||
a5763f22 HMH |
4298 | static struct ibm_struct ecdump_driver_data = { |
4299 | .name = "ecdump", | |
4300 | .read = ecdump_read, | |
4301 | .write = ecdump_write, | |
92641177 | 4302 | .flags.experimental = 1, |
a5763f22 HMH |
4303 | }; |
4304 | ||
56b6aeb0 HMH |
4305 | /************************************************************************* |
4306 | * Backlight/brightness subdriver | |
4307 | */ | |
4308 | ||
94954cc6 | 4309 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
4310 | |
4311 | static struct backlight_ops ibm_backlight_data = { | |
4312 | .get_brightness = brightness_get, | |
4313 | .update_status = brightness_update_status, | |
4314 | }; | |
4315 | ||
f432255e HMH |
4316 | static struct mutex brightness_mutex; |
4317 | ||
a3f104c0 HMH |
4318 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4319 | { | |
4320 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4321 | union acpi_object *obj; | |
4322 | int rc; | |
4323 | ||
4324 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4325 | obj = (union acpi_object *)buffer.pointer; | |
4326 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
4327 | printk(IBM_ERR "Unknown BCLL data, " | |
4328 | "please report this to %s\n", IBM_MAIL); | |
4329 | rc = 0; | |
4330 | } else { | |
4331 | rc = obj->package.count; | |
4332 | } | |
4333 | } else { | |
4334 | return 0; | |
4335 | } | |
4336 | ||
4337 | kfree(buffer.pointer); | |
4338 | return rc; | |
4339 | } | |
4340 | ||
4341 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4342 | void *context, void **rv) | |
4343 | { | |
4344 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4345 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4346 | ||
4347 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4348 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4349 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4350 | *rv = handle; | |
4351 | return AE_CTRL_TERMINATE; | |
4352 | } else { | |
4353 | return AE_OK; | |
4354 | } | |
4355 | } else { | |
4356 | return AE_OK; | |
4357 | } | |
4358 | } | |
4359 | ||
4360 | static int __init brightness_check_levels(void) | |
4361 | { | |
4362 | int status; | |
4363 | void *found_node = NULL; | |
4364 | ||
4365 | if (!vid_handle) { | |
4366 | IBM_ACPIHANDLE_INIT(vid); | |
4367 | } | |
4368 | if (!vid_handle) | |
4369 | return 0; | |
4370 | ||
4371 | /* Search for a BCLL package with 16 levels */ | |
4372 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
4373 | brightness_find_bcll, NULL, &found_node); | |
4374 | ||
4375 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4376 | } | |
4377 | ||
e11e211a HMH |
4378 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4379 | void *context, void **rv) | |
4380 | { | |
4381 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4382 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4383 | ||
4384 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4385 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4386 | *rv = handle; | |
4387 | return AE_CTRL_TERMINATE; | |
4388 | } else { | |
4389 | return AE_OK; | |
4390 | } | |
4391 | } | |
4392 | ||
4393 | static int __init brightness_check_std_acpi_support(void) | |
4394 | { | |
4395 | int status; | |
4396 | void *found_node = NULL; | |
4397 | ||
4398 | if (!vid_handle) { | |
4399 | IBM_ACPIHANDLE_INIT(vid); | |
4400 | } | |
4401 | if (!vid_handle) | |
4402 | return 0; | |
4403 | ||
4404 | /* Search for a _BCL method, but don't execute it */ | |
4405 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
4406 | brightness_find_bcl, NULL, &found_node); | |
4407 | ||
4408 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4409 | } | |
4410 | ||
a5763f22 | 4411 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4412 | { |
4413 | int b; | |
4414 | ||
fe08bc4b HMH |
4415 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4416 | ||
f432255e HMH |
4417 | mutex_init(&brightness_mutex); |
4418 | ||
87cc537a HMH |
4419 | if (!brightness_enable) { |
4420 | dbg_printk(TPACPI_DBG_INIT, | |
4421 | "brightness support disabled by module parameter\n"); | |
4422 | return 1; | |
e11e211a HMH |
4423 | } else if (brightness_enable > 1) { |
4424 | if (brightness_check_std_acpi_support()) { | |
4425 | printk(IBM_NOTICE | |
4426 | "standard ACPI backlight interface available, not loading native one...\n"); | |
4427 | return 1; | |
4428 | } | |
87cc537a HMH |
4429 | } |
4430 | ||
24d3b774 HMH |
4431 | if (!brightness_mode) { |
4432 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4433 | brightness_mode = 2; | |
4434 | else | |
4435 | brightness_mode = 3; | |
4436 | ||
4437 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4438 | brightness_mode); | |
4439 | } | |
4440 | ||
4441 | if (brightness_mode > 3) | |
4442 | return -EINVAL; | |
4443 | ||
a3f104c0 HMH |
4444 | tp_features.bright_16levels = |
4445 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4446 | brightness_check_levels(); | |
4447 | ||
56b6aeb0 HMH |
4448 | b = brightness_get(NULL); |
4449 | if (b < 0) | |
24d3b774 | 4450 | return 1; |
56b6aeb0 | 4451 | |
a3f104c0 HMH |
4452 | if (tp_features.bright_16levels) |
4453 | printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n"); | |
4454 | ||
7d5a015e HMH |
4455 | ibm_backlight_device = backlight_device_register( |
4456 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4457 | &ibm_backlight_data); | |
56b6aeb0 HMH |
4458 | if (IS_ERR(ibm_backlight_device)) { |
4459 | printk(IBM_ERR "Could not register backlight device\n"); | |
4460 | return PTR_ERR(ibm_backlight_device); | |
4461 | } | |
fe08bc4b | 4462 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4463 | |
a3f104c0 HMH |
4464 | ibm_backlight_device->props.max_brightness = |
4465 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4466 | ibm_backlight_device->props.brightness = b; |
4467 | backlight_update_status(ibm_backlight_device); | |
4468 | ||
4469 | return 0; | |
4470 | } | |
4471 | ||
4472 | static void brightness_exit(void) | |
4473 | { | |
4474 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4475 | vdbg_printk(TPACPI_DBG_EXIT, |
4476 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4477 | backlight_device_unregister(ibm_backlight_device); |
4478 | ibm_backlight_device = NULL; | |
4479 | } | |
4480 | } | |
4481 | ||
4482 | static int brightness_update_status(struct backlight_device *bd) | |
4483 | { | |
4273af8d HMH |
4484 | /* it is the backlight class's job (caller) to handle |
4485 | * EINTR and other errors properly */ | |
56b6aeb0 HMH |
4486 | return brightness_set( |
4487 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4488 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4489 | bd->props.brightness : 0); | |
4490 | } | |
4491 | ||
24d3b774 HMH |
4492 | /* |
4493 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4494 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
4495 | */ | |
8acb0250 HM |
4496 | static int brightness_get(struct backlight_device *bd) |
4497 | { | |
24d3b774 | 4498 | u8 lec = 0, lcmos = 0, level = 0; |
8acb0250 | 4499 | |
24d3b774 HMH |
4500 | if (brightness_mode & 1) { |
4501 | if (!acpi_ec_read(brightness_offset, &lec)) | |
4502 | return -EIO; | |
a3f104c0 | 4503 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; |
24d3b774 HMH |
4504 | level = lec; |
4505 | }; | |
4506 | if (brightness_mode & 2) { | |
4507 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4508 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4509 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
a3f104c0 | 4510 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; |
24d3b774 HMH |
4511 | level = lcmos; |
4512 | } | |
4513 | ||
4514 | if (brightness_mode == 3 && lec != lcmos) { | |
4515 | printk(IBM_ERR | |
4516 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
4517 | "on display brightness level\n", | |
4518 | (unsigned int) lcmos, | |
4519 | (unsigned int) lec); | |
4520 | return -EIO; | |
4521 | } | |
fb87a811 | 4522 | |
8d297264 | 4523 | return level; |
8acb0250 HM |
4524 | } |
4525 | ||
4273af8d | 4526 | /* May return EINTR which can always be mapped to ERESTARTSYS */ |
8acb0250 | 4527 | static int brightness_set(int value) |
1da177e4 | 4528 | { |
f432255e HMH |
4529 | int cmos_cmd, inc, i, res; |
4530 | int current_value; | |
8acb0250 | 4531 | |
a3f104c0 | 4532 | if (value > ((tp_features.bright_16levels)? 15 : 7)) |
24d3b774 | 4533 | return -EINVAL; |
8acb0250 | 4534 | |
f432255e HMH |
4535 | res = mutex_lock_interruptible(&brightness_mutex); |
4536 | if (res < 0) | |
4537 | return res; | |
4538 | ||
4539 | current_value = brightness_get(NULL); | |
4540 | if (current_value < 0) { | |
4541 | res = current_value; | |
4542 | goto errout; | |
4543 | } | |
4544 | ||
24d3b774 HMH |
4545 | cmos_cmd = value > current_value ? |
4546 | TP_CMOS_BRIGHTNESS_UP : | |
4547 | TP_CMOS_BRIGHTNESS_DOWN; | |
a3f104c0 | 4548 | inc = (value > current_value)? 1 : -1; |
24d3b774 | 4549 | |
f432255e | 4550 | res = 0; |
8acb0250 | 4551 | for (i = current_value; i != value; i += inc) { |
24d3b774 | 4552 | if ((brightness_mode & 2) && |
f432255e HMH |
4553 | issue_thinkpad_cmos_command(cmos_cmd)) { |
4554 | res = -EIO; | |
4555 | goto errout; | |
4556 | } | |
24d3b774 | 4557 | if ((brightness_mode & 1) && |
f432255e HMH |
4558 | !acpi_ec_write(brightness_offset, i + inc)) { |
4559 | res = -EIO; | |
4560 | goto errout;; | |
4561 | } | |
8acb0250 HM |
4562 | } |
4563 | ||
f432255e HMH |
4564 | errout: |
4565 | mutex_unlock(&brightness_mutex); | |
4566 | return res; | |
8acb0250 HM |
4567 | } |
4568 | ||
56b6aeb0 HMH |
4569 | static int brightness_read(char *p) |
4570 | { | |
4571 | int len = 0; | |
4572 | int level; | |
4573 | ||
4574 | if ((level = brightness_get(NULL)) < 0) { | |
4575 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4576 | } else { | |
a3f104c0 | 4577 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4578 | len += sprintf(p + len, "commands:\tup, down\n"); |
4579 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4580 | " (<level> is 0-%d)\n", |
4581 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4582 | } |
4583 | ||
4584 | return len; | |
4585 | } | |
4586 | ||
8acb0250 HM |
4587 | static int brightness_write(char *buf) |
4588 | { | |
4589 | int level; | |
4273af8d | 4590 | int rc; |
1da177e4 | 4591 | char *cmd; |
a3f104c0 | 4592 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4593 | |
4273af8d HMH |
4594 | level = brightness_get(NULL); |
4595 | if (level < 0) | |
4596 | return level; | |
78f81cc4 | 4597 | |
4273af8d | 4598 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4599 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4600 | if (level < max_level) |
4601 | level++; | |
78f81cc4 | 4602 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4603 | if (level > 0) |
4604 | level--; | |
4605 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4606 | level >= 0 && level <= max_level) { | |
4607 | /* new level set */ | |
78f81cc4 BD |
4608 | } else |
4609 | return -EINVAL; | |
78f81cc4 BD |
4610 | } |
4611 | ||
4273af8d HMH |
4612 | /* |
4613 | * Now we know what the final level should be, so we try to set it. | |
4614 | * Doing it this way makes the syscall restartable in case of EINTR | |
4615 | */ | |
4616 | rc = brightness_set(level); | |
4617 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4618 | } |
4619 | ||
a5763f22 HMH |
4620 | static struct ibm_struct brightness_driver_data = { |
4621 | .name = "brightness", | |
4622 | .read = brightness_read, | |
4623 | .write = brightness_write, | |
4624 | .exit = brightness_exit, | |
4625 | }; | |
4626 | ||
56b6aeb0 HMH |
4627 | /************************************************************************* |
4628 | * Volume subdriver | |
4629 | */ | |
fb87a811 | 4630 | |
78f81cc4 BD |
4631 | static int volume_read(char *p) |
4632 | { | |
4633 | int len = 0; | |
4634 | u8 level; | |
4635 | ||
4636 | if (!acpi_ec_read(volume_offset, &level)) { | |
4637 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4638 | } else { | |
4639 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4640 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4641 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4642 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4643 | " (<level> is 0-15)\n"); | |
4644 | } | |
4645 | ||
4646 | return len; | |
4647 | } | |
4648 | ||
78f81cc4 BD |
4649 | static int volume_write(char *buf) |
4650 | { | |
4651 | int cmos_cmd, inc, i; | |
4652 | u8 level, mute; | |
4653 | int new_level, new_mute; | |
4654 | char *cmd; | |
4655 | ||
4656 | while ((cmd = next_cmd(&buf))) { | |
4657 | if (!acpi_ec_read(volume_offset, &level)) | |
4658 | return -EIO; | |
4659 | new_mute = mute = level & 0x40; | |
4660 | new_level = level = level & 0xf; | |
4661 | ||
4662 | if (strlencmp(cmd, "up") == 0) { | |
4663 | if (mute) | |
4664 | new_mute = 0; | |
4665 | else | |
4666 | new_level = level == 15 ? 15 : level + 1; | |
4667 | } else if (strlencmp(cmd, "down") == 0) { | |
4668 | if (mute) | |
4669 | new_mute = 0; | |
4670 | else | |
4671 | new_level = level == 0 ? 0 : level - 1; | |
4672 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4673 | new_level >= 0 && new_level <= 15) { | |
4674 | /* new_level set */ | |
4675 | } else if (strlencmp(cmd, "mute") == 0) { | |
4676 | new_mute = 0x40; | |
1da177e4 LT |
4677 | } else |
4678 | return -EINVAL; | |
4679 | ||
78f81cc4 | 4680 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 4681 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
4682 | inc = new_level > level ? 1 : -1; |
4683 | ||
c9bea99c | 4684 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4685 | !acpi_ec_write(volume_offset, level))) |
4686 | return -EIO; | |
4687 | ||
4688 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4689 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4690 | !acpi_ec_write(volume_offset, i + inc)) |
4691 | return -EIO; | |
4692 | ||
c9bea99c | 4693 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
4694 | !acpi_ec_write(volume_offset, |
4695 | new_level + mute))) | |
4696 | return -EIO; | |
4697 | } | |
4698 | ||
4699 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 4700 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 4701 | |
c9bea99c | 4702 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4703 | !acpi_ec_write(volume_offset, level + new_mute)) |
4704 | return -EIO; | |
4705 | } | |
4706 | } | |
4707 | ||
4708 | return 0; | |
4709 | } | |
4710 | ||
a5763f22 HMH |
4711 | static struct ibm_struct volume_driver_data = { |
4712 | .name = "volume", | |
4713 | .read = volume_read, | |
4714 | .write = volume_write, | |
4715 | }; | |
56b6aeb0 HMH |
4716 | |
4717 | /************************************************************************* | |
4718 | * Fan subdriver | |
4719 | */ | |
4720 | ||
4721 | /* | |
4722 | * FAN ACCESS MODES | |
4723 | * | |
efa27145 | 4724 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4725 | * ACPI GFAN method: returns fan level |
4726 | * | |
efa27145 | 4727 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4728 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4729 | * |
efa27145 | 4730 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4731 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4732 | * | |
f51d1a39 HMH |
4733 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4734 | * it for writing. | |
56b6aeb0 | 4735 | * |
efa27145 | 4736 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4737 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4738 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4739 | * |
4740 | * Fan speed changes of any sort (including those caused by the | |
4741 | * disengaged mode) are usually done slowly by the firmware as the | |
4742 | * maximum ammount of fan duty cycle change per second seems to be | |
4743 | * limited. | |
4744 | * | |
4745 | * Reading is not available if GFAN exists. | |
4746 | * Writing is not available if SFAN exists. | |
4747 | * | |
4748 | * Bits | |
4749 | * 7 automatic mode engaged; | |
4750 | * (default operation mode of the ThinkPad) | |
4751 | * fan level is ignored in this mode. | |
f51d1a39 | 4752 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4753 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4754 | * the tachometer while the fan controller ramps up |
4755 | * the speed (which can take up to a few *minutes*). | |
4756 | * Speeds up fan to 100% duty-cycle, which is far above | |
4757 | * the standard RPM levels. It is not impossible that | |
4758 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4759 | * 5-3 unused in some models. Extra bits for fan level |
4760 | * in others, but still useless as all values above | |
4761 | * 7 map to the same speed as level 7 in these models. | |
4762 | * 2-0 fan level (0..7 usually) | |
4763 | * 0x00 = stop | |
4764 | * 0x07 = max (set when temperatures critical) | |
4765 | * Some ThinkPads may have other levels, see | |
efa27145 | 4766 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4767 | * |
4768 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4769 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4770 | * does so, its initial value is meaningless (0x07). | |
4771 | * | |
4772 | * For firmware bugs, refer to: | |
4773 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4774 | * | |
4775 | * ---- | |
4776 | * | |
4777 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4778 | * Main fan tachometer reading (in RPM) | |
4779 | * | |
4780 | * This register is present on all ThinkPads with a new-style EC, and | |
4781 | * it is known not to be present on the A21m/e, and T22, as there is | |
4782 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4783 | * ThinkPads from this same time period (and earlier) probably lack the | |
4784 | * tachometer as well. | |
4785 | * | |
4786 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4787 | * was never fixed by IBM to report the EC firmware version string | |
4788 | * probably support the tachometer (like the early X models), so | |
4789 | * detecting it is quite hard. We need more data to know for sure. | |
4790 | * | |
4791 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4792 | * might result. | |
4793 | * | |
f51d1a39 HMH |
4794 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4795 | * mode. | |
56b6aeb0 HMH |
4796 | * |
4797 | * For firmware bugs, refer to: | |
4798 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4799 | * | |
efa27145 | 4800 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4801 | * ThinkPad X31, X40, X41. Not available in the X60. |
4802 | * | |
4803 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4804 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4805 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4806 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4807 | * | |
4808 | * The speeds are stored on handles | |
4809 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4810 | * | |
4811 | * There are three default speed sets, acessible as handles: | |
4812 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4813 | * | |
4814 | * ACPI DSDT switches which set is in use depending on various | |
4815 | * factors. | |
4816 | * | |
efa27145 | 4817 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4818 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4819 | * but the ACPI tables just mention level 7. | |
4820 | */ | |
4821 | ||
69ba91cb HMH |
4822 | static enum fan_status_access_mode fan_status_access_mode; |
4823 | static enum fan_control_access_mode fan_control_access_mode; | |
4824 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4825 | |
778b4d74 | 4826 | static u8 fan_control_initial_status; |
fe98a52c | 4827 | static u8 fan_control_desired_level; |
778b4d74 | 4828 | |
25c68a33 | 4829 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 4830 | static int fan_watchdog_maxinterval; |
25c68a33 | 4831 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4832 | |
56b6aeb0 HMH |
4833 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4834 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
4835 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
4836 | ); /* all others */ | |
4837 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
4838 | "JFNS", /* 770x-JL */ | |
4839 | ); /* all others */ | |
4840 | ||
fe98a52c HMH |
4841 | /* |
4842 | * SYSFS fan layout: hwmon compatible (device) | |
4843 | * | |
4844 | * pwm*_enable: | |
4845 | * 0: "disengaged" mode | |
4846 | * 1: manual mode | |
4847 | * 2: native EC "auto" mode (recommended, hardware default) | |
4848 | * | |
4849 | * pwm*: set speed in manual mode, ignored otherwise. | |
4850 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
4851 | * interpolation. | |
4852 | * | |
4853 | * fan*_input: tachometer reading, RPM | |
4854 | * | |
4855 | * | |
4856 | * SYSFS fan layout: extensions | |
4857 | * | |
4858 | * fan_watchdog (driver): | |
4859 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
4860 | */ | |
4861 | ||
4862 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
4863 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
4864 | struct device_attribute *attr, | |
4865 | char *buf) | |
4866 | { | |
4867 | int res, mode; | |
4868 | u8 status; | |
4869 | ||
4870 | res = fan_get_status_safe(&status); | |
4871 | if (res) | |
4872 | return res; | |
4873 | ||
4874 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4875 | if (status != fan_control_initial_status) { | |
4876 | tp_features.fan_ctrl_status_undef = 0; | |
4877 | } else { | |
4878 | /* Return most likely status. In fact, it | |
4879 | * might be the only possible status */ | |
4880 | status = TP_EC_FAN_AUTO; | |
4881 | } | |
4882 | } | |
4883 | ||
4884 | if (status & TP_EC_FAN_FULLSPEED) { | |
4885 | mode = 0; | |
4886 | } else if (status & TP_EC_FAN_AUTO) { | |
4887 | mode = 2; | |
4888 | } else | |
4889 | mode = 1; | |
4890 | ||
4891 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
4892 | } | |
4893 | ||
4894 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
4895 | struct device_attribute *attr, | |
4896 | const char *buf, size_t count) | |
4897 | { | |
4898 | unsigned long t; | |
4899 | int res, level; | |
4900 | ||
4901 | if (parse_strtoul(buf, 2, &t)) | |
4902 | return -EINVAL; | |
4903 | ||
4904 | switch (t) { | |
4905 | case 0: | |
4906 | level = TP_EC_FAN_FULLSPEED; | |
4907 | break; | |
4908 | case 1: | |
4909 | level = TPACPI_FAN_LAST_LEVEL; | |
4910 | break; | |
4911 | case 2: | |
4912 | level = TP_EC_FAN_AUTO; | |
4913 | break; | |
4914 | case 3: | |
4915 | /* reserved for software-controlled auto mode */ | |
4916 | return -ENOSYS; | |
4917 | default: | |
4918 | return -EINVAL; | |
4919 | } | |
4920 | ||
4921 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
4922 | if (res == -ENXIO) |
4923 | return -EINVAL; | |
4924 | else if (res < 0) | |
fe98a52c HMH |
4925 | return res; |
4926 | ||
4927 | fan_watchdog_reset(); | |
4928 | ||
4929 | return count; | |
4930 | } | |
4931 | ||
4932 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
4933 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
4934 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
4935 | ||
4936 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
4937 | static ssize_t fan_pwm1_show(struct device *dev, | |
4938 | struct device_attribute *attr, | |
4939 | char *buf) | |
4940 | { | |
4941 | int res; | |
4942 | u8 status; | |
4943 | ||
4944 | res = fan_get_status_safe(&status); | |
4945 | if (res) | |
4946 | return res; | |
4947 | ||
4948 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4949 | if (status != fan_control_initial_status) { | |
4950 | tp_features.fan_ctrl_status_undef = 0; | |
4951 | } else { | |
4952 | status = TP_EC_FAN_AUTO; | |
4953 | } | |
4954 | } | |
4955 | ||
4956 | if ((status & | |
4957 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
4958 | status = fan_control_desired_level; | |
4959 | ||
4960 | if (status > 7) | |
4961 | status = 7; | |
4962 | ||
4963 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
4964 | } | |
4965 | ||
4966 | static ssize_t fan_pwm1_store(struct device *dev, | |
4967 | struct device_attribute *attr, | |
4968 | const char *buf, size_t count) | |
4969 | { | |
4970 | unsigned long s; | |
4971 | int rc; | |
4972 | u8 status, newlevel; | |
4973 | ||
4974 | if (parse_strtoul(buf, 255, &s)) | |
4975 | return -EINVAL; | |
4976 | ||
4977 | /* scale down from 0-255 to 0-7 */ | |
4978 | newlevel = (s >> 5) & 0x07; | |
4979 | ||
fc589a3c HMH |
4980 | if (mutex_lock_interruptible(&fan_mutex)) |
4981 | return -ERESTARTSYS; | |
fe98a52c HMH |
4982 | |
4983 | rc = fan_get_status(&status); | |
4984 | if (!rc && (status & | |
4985 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4986 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
4987 | if (rc == -ENXIO) |
4988 | rc = -EINVAL; | |
4989 | else if (!rc) { | |
fe98a52c | 4990 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
4991 | fan_watchdog_reset(); |
4992 | } | |
fe98a52c HMH |
4993 | } |
4994 | ||
4995 | mutex_unlock(&fan_mutex); | |
4996 | return (rc)? rc : count; | |
4997 | } | |
4998 | ||
4999 | static struct device_attribute dev_attr_fan_pwm1 = | |
5000 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5001 | fan_pwm1_show, fan_pwm1_store); | |
5002 | ||
5003 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
5004 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5005 | struct device_attribute *attr, | |
5006 | char *buf) | |
5007 | { | |
5008 | int res; | |
5009 | unsigned int speed; | |
5010 | ||
5011 | res = fan_get_speed(&speed); | |
5012 | if (res < 0) | |
5013 | return res; | |
5014 | ||
5015 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
5016 | } | |
5017 | ||
5018 | static struct device_attribute dev_attr_fan_fan1_input = | |
5019 | __ATTR(fan1_input, S_IRUGO, | |
5020 | fan_fan1_input_show, NULL); | |
5021 | ||
7fd40029 | 5022 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
fe98a52c HMH |
5023 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, |
5024 | char *buf) | |
5025 | { | |
5026 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
5027 | } | |
5028 | ||
5029 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
5030 | const char *buf, size_t count) | |
5031 | { | |
5032 | unsigned long t; | |
5033 | ||
5034 | if (parse_strtoul(buf, 120, &t)) | |
5035 | return -EINVAL; | |
5036 | ||
ecf2a80a HMH |
5037 | if (!fan_control_allowed) |
5038 | return -EPERM; | |
5039 | ||
fe98a52c HMH |
5040 | fan_watchdog_maxinterval = t; |
5041 | fan_watchdog_reset(); | |
5042 | ||
5043 | return count; | |
5044 | } | |
5045 | ||
5046 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5047 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5048 | ||
5049 | /* --------------------------------------------------------------------- */ | |
5050 | static struct attribute *fan_attributes[] = { | |
5051 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5052 | &dev_attr_fan_fan1_input.attr, | |
5053 | NULL | |
5054 | }; | |
5055 | ||
5056 | static const struct attribute_group fan_attr_group = { | |
5057 | .attrs = fan_attributes, | |
5058 | }; | |
5059 | ||
a5763f22 | 5060 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5061 | { |
fe98a52c HMH |
5062 | int rc; |
5063 | ||
fe08bc4b HMH |
5064 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
5065 | ||
40ca9fdf | 5066 | mutex_init(&fan_mutex); |
efa27145 HMH |
5067 | fan_status_access_mode = TPACPI_FAN_NONE; |
5068 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 5069 | fan_control_commands = 0; |
16663a87 | 5070 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 5071 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 5072 | fan_control_desired_level = 7; |
78f81cc4 | 5073 | |
8d376cd6 HMH |
5074 | IBM_ACPIHANDLE_INIT(fans); |
5075 | IBM_ACPIHANDLE_INIT(gfan); | |
5076 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 5077 | |
78f81cc4 BD |
5078 | if (gfan_handle) { |
5079 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 5080 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
5081 | } else { |
5082 | /* all other ThinkPads: note that even old-style | |
5083 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
5084 | if (likely(acpi_ec_read(fan_status_offset, |
5085 | &fan_control_initial_status))) { | |
efa27145 | 5086 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
5087 | |
5088 | /* In some ThinkPads, neither the EC nor the ACPI | |
5089 | * DSDT initialize the fan status, and it ends up | |
5090 | * being set to 0x07 when it *could* be either | |
5091 | * 0x07 or 0x80. | |
5092 | * | |
5093 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5094 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5095 | * to be buggy. */ | |
d5a2f2f1 HMH |
5096 | if (fan_control_initial_status == 0x07) { |
5097 | switch (thinkpad_id.ec_model) { | |
5098 | case 0x5931: /* TP-1Y */ | |
5099 | case 0x3837: /* TP-78 */ | |
5100 | case 0x3637: /* TP-76 */ | |
5101 | case 0x3037: /* TP-70 */ | |
5102 | printk(IBM_NOTICE | |
5103 | "fan_init: initial fan status is " | |
5104 | "unknown, assuming it is in auto " | |
5105 | "mode\n"); | |
5106 | tp_features.fan_ctrl_status_undef = 1; | |
5107 | ;; | |
5108 | } | |
778b4d74 | 5109 | } |
69ba91cb HMH |
5110 | } else { |
5111 | printk(IBM_ERR | |
5112 | "ThinkPad ACPI EC access misbehaving, " | |
5113 | "fan status and control unavailable\n"); | |
5fba344c | 5114 | return 1; |
69ba91cb HMH |
5115 | } |
5116 | } | |
78f81cc4 | 5117 | |
69ba91cb HMH |
5118 | if (sfan_handle) { |
5119 | /* 570, 770x-JL */ | |
efa27145 | 5120 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 5121 | fan_control_commands |= |
efa27145 | 5122 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 5123 | } else { |
69ba91cb HMH |
5124 | if (!gfan_handle) { |
5125 | /* gfan without sfan means no fan control */ | |
5126 | /* all other models implement TP EC 0x2f control */ | |
5127 | ||
5128 | if (fans_handle) { | |
a8b7a662 | 5129 | /* X31, X40, X41 */ |
69ba91cb | 5130 | fan_control_access_mode = |
efa27145 | 5131 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 5132 | fan_control_commands |= |
efa27145 HMH |
5133 | TPACPI_FAN_CMD_SPEED | |
5134 | TPACPI_FAN_CMD_LEVEL | | |
5135 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 5136 | } else { |
efa27145 | 5137 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 5138 | fan_control_commands |= |
efa27145 HMH |
5139 | TPACPI_FAN_CMD_LEVEL | |
5140 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
5141 | } |
5142 | } | |
5143 | } | |
5144 | ||
fe08bc4b HMH |
5145 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5146 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5147 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5148 | fan_status_access_mode, fan_control_access_mode); | |
5149 | ||
ecf2a80a HMH |
5150 | /* fan control master switch */ |
5151 | if (!fan_control_allowed) { | |
5152 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5153 | fan_control_commands = 0; | |
5154 | dbg_printk(TPACPI_DBG_INIT, | |
5155 | "fan control features disabled by parameter\n"); | |
5156 | } | |
5157 | ||
fe98a52c HMH |
5158 | /* update fan_control_desired_level */ |
5159 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5160 | fan_get_status_safe(NULL); | |
5161 | ||
5162 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
5163 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
7fd40029 | 5164 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
fe98a52c HMH |
5165 | &fan_attr_group); |
5166 | if (!(rc < 0)) | |
7fd40029 | 5167 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, |
fe98a52c HMH |
5168 | &driver_attr_fan_watchdog); |
5169 | if (rc < 0) | |
5170 | return rc; | |
5171 | return 0; | |
5172 | } else | |
5173 | return 1; | |
5174 | } | |
5175 | ||
5176 | /* | |
5177 | * Call with fan_mutex held | |
5178 | */ | |
5179 | static void fan_update_desired_level(u8 status) | |
5180 | { | |
5181 | if ((status & | |
5182 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5183 | if (status > 7) | |
5184 | fan_control_desired_level = 7; | |
5185 | else | |
5186 | fan_control_desired_level = status; | |
5187 | } | |
69ba91cb | 5188 | } |
78f81cc4 | 5189 | |
c52f0aa5 | 5190 | static int fan_get_status(u8 *status) |
78f81cc4 | 5191 | { |
c52f0aa5 | 5192 | u8 s; |
78f81cc4 | 5193 | |
a8b7a662 | 5194 | /* TODO: |
efa27145 | 5195 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 5196 | |
3ef8a609 | 5197 | switch (fan_status_access_mode) { |
efa27145 | 5198 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 5199 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
5200 | |
5201 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 5202 | return -EIO; |
78f81cc4 | 5203 | |
c52f0aa5 HMH |
5204 | if (likely(status)) |
5205 | *status = s & 0x07; | |
3ef8a609 HMH |
5206 | |
5207 | break; | |
5208 | ||
efa27145 | 5209 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 5210 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 5211 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 5212 | return -EIO; |
78f81cc4 | 5213 | |
c52f0aa5 HMH |
5214 | if (likely(status)) |
5215 | *status = s; | |
5216 | ||
5217 | break; | |
5218 | ||
5219 | default: | |
5220 | return -ENXIO; | |
78f81cc4 BD |
5221 | } |
5222 | ||
c52f0aa5 HMH |
5223 | return 0; |
5224 | } | |
5225 | ||
fe98a52c HMH |
5226 | static int fan_get_status_safe(u8 *status) |
5227 | { | |
5228 | int rc; | |
5229 | u8 s; | |
5230 | ||
fc589a3c HMH |
5231 | if (mutex_lock_interruptible(&fan_mutex)) |
5232 | return -ERESTARTSYS; | |
fe98a52c HMH |
5233 | rc = fan_get_status(&s); |
5234 | if (!rc) | |
5235 | fan_update_desired_level(s); | |
5236 | mutex_unlock(&fan_mutex); | |
5237 | ||
5238 | if (status) | |
5239 | *status = s; | |
5240 | ||
5241 | return rc; | |
5242 | } | |
5243 | ||
56b6aeb0 HMH |
5244 | static void fan_exit(void) |
5245 | { | |
99fba3f8 | 5246 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
5247 | |
5248 | /* FIXME: can we really do this unconditionally? */ | |
7fd40029 HMH |
5249 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); |
5250 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog); | |
fe98a52c | 5251 | |
56b6aeb0 HMH |
5252 | cancel_delayed_work(&fan_watchdog_task); |
5253 | flush_scheduled_work(); | |
5254 | } | |
5255 | ||
c52f0aa5 HMH |
5256 | static int fan_get_speed(unsigned int *speed) |
5257 | { | |
5258 | u8 hi, lo; | |
5259 | ||
5260 | switch (fan_status_access_mode) { | |
efa27145 | 5261 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 5262 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
5263 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
5264 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
5265 | return -EIO; | |
3ef8a609 | 5266 | |
c52f0aa5 HMH |
5267 | if (likely(speed)) |
5268 | *speed = (hi << 8) | lo; | |
5269 | ||
5270 | break; | |
5271 | ||
5272 | default: | |
5273 | return -ENXIO; | |
5274 | } | |
5275 | ||
5276 | return 0; | |
5277 | } | |
5278 | ||
56b6aeb0 | 5279 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 5280 | { |
99fba3f8 HMH |
5281 | int rc; |
5282 | ||
8fef502e HMH |
5283 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5284 | return; | |
5285 | ||
56b6aeb0 | 5286 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
5287 | rc = fan_set_enable(); |
5288 | if (rc < 0) { | |
5289 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
5290 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
5291 | /* reschedule for later */ |
5292 | fan_watchdog_reset(); | |
5293 | } | |
16663a87 HMH |
5294 | } |
5295 | ||
5296 | static void fan_watchdog_reset(void) | |
5297 | { | |
94954cc6 | 5298 | static int fan_watchdog_active; |
16663a87 | 5299 | |
4985cd0a HMH |
5300 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5301 | return; | |
5302 | ||
16663a87 HMH |
5303 | if (fan_watchdog_active) |
5304 | cancel_delayed_work(&fan_watchdog_task); | |
5305 | ||
8fef502e HMH |
5306 | if (fan_watchdog_maxinterval > 0 && |
5307 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
5308 | fan_watchdog_active = 1; |
5309 | if (!schedule_delayed_work(&fan_watchdog_task, | |
5310 | msecs_to_jiffies(fan_watchdog_maxinterval | |
5311 | * 1000))) { | |
5312 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
5313 | "watchdog will not trigger\n"); | |
5314 | } | |
5315 | } else | |
5316 | fan_watchdog_active = 0; | |
5317 | } | |
5318 | ||
18ad7996 | 5319 | static int fan_set_level(int level) |
78f81cc4 | 5320 | { |
ecf2a80a HMH |
5321 | if (!fan_control_allowed) |
5322 | return -EPERM; | |
5323 | ||
18ad7996 | 5324 | switch (fan_control_access_mode) { |
efa27145 | 5325 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 5326 | if (level >= 0 && level <= 7) { |
fe98a52c | 5327 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 5328 | return -EIO; |
18ad7996 HMH |
5329 | } else |
5330 | return -EINVAL; | |
5331 | break; | |
5332 | ||
efa27145 HMH |
5333 | case TPACPI_FAN_WR_ACPI_FANS: |
5334 | case TPACPI_FAN_WR_TPEC: | |
5335 | if ((level != TP_EC_FAN_AUTO) && | |
5336 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
5337 | ((level < 0) || (level > 7))) |
5338 | return -EINVAL; | |
5339 | ||
eaa7571b HMH |
5340 | /* safety net should the EC not support AUTO |
5341 | * or FULLSPEED mode bits and just ignore them */ | |
5342 | if (level & TP_EC_FAN_FULLSPEED) | |
5343 | level |= 7; /* safety min speed 7 */ | |
5344 | else if (level & TP_EC_FAN_FULLSPEED) | |
5345 | level |= 4; /* safety min speed 4 */ | |
5346 | ||
fe98a52c | 5347 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 5348 | return -EIO; |
778b4d74 | 5349 | else |
d8fd94d9 | 5350 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
5351 | break; |
5352 | ||
18ad7996 HMH |
5353 | default: |
5354 | return -ENXIO; | |
5355 | } | |
5356 | return 0; | |
5357 | } | |
5358 | ||
fe98a52c HMH |
5359 | static int fan_set_level_safe(int level) |
5360 | { | |
5361 | int rc; | |
5362 | ||
ecf2a80a HMH |
5363 | if (!fan_control_allowed) |
5364 | return -EPERM; | |
5365 | ||
fc589a3c HMH |
5366 | if (mutex_lock_interruptible(&fan_mutex)) |
5367 | return -ERESTARTSYS; | |
fe98a52c HMH |
5368 | |
5369 | if (level == TPACPI_FAN_LAST_LEVEL) | |
5370 | level = fan_control_desired_level; | |
5371 | ||
5372 | rc = fan_set_level(level); | |
5373 | if (!rc) | |
5374 | fan_update_desired_level(level); | |
5375 | ||
5376 | mutex_unlock(&fan_mutex); | |
5377 | return rc; | |
5378 | } | |
5379 | ||
18ad7996 HMH |
5380 | static int fan_set_enable(void) |
5381 | { | |
1c6a334e HMH |
5382 | u8 s; |
5383 | int rc; | |
5384 | ||
ecf2a80a HMH |
5385 | if (!fan_control_allowed) |
5386 | return -EPERM; | |
5387 | ||
fc589a3c HMH |
5388 | if (mutex_lock_interruptible(&fan_mutex)) |
5389 | return -ERESTARTSYS; | |
40ca9fdf | 5390 | |
18ad7996 | 5391 | switch (fan_control_access_mode) { |
efa27145 HMH |
5392 | case TPACPI_FAN_WR_ACPI_FANS: |
5393 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
5394 | rc = fan_get_status(&s); |
5395 | if (rc < 0) | |
5396 | break; | |
1c6a334e HMH |
5397 | |
5398 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
5399 | if (s != 7) { |
5400 | s &= 0x07; | |
5401 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
5402 | } | |
1c6a334e HMH |
5403 | |
5404 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
5405 | rc = -EIO; |
5406 | else { | |
d8fd94d9 | 5407 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
5408 | rc = 0; |
5409 | } | |
1c6a334e HMH |
5410 | break; |
5411 | ||
efa27145 | 5412 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
5413 | rc = fan_get_status(&s); |
5414 | if (rc < 0) | |
5415 | break; | |
1c6a334e HMH |
5416 | |
5417 | s &= 0x07; | |
5418 | ||
5419 | /* Set fan to at least level 4 */ | |
eaa7571b | 5420 | s |= 4; |
1c6a334e HMH |
5421 | |
5422 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
5423 | rc= -EIO; |
5424 | else | |
5425 | rc = 0; | |
18ad7996 HMH |
5426 | break; |
5427 | ||
5428 | default: | |
40ca9fdf | 5429 | rc = -ENXIO; |
18ad7996 | 5430 | } |
40ca9fdf HMH |
5431 | |
5432 | mutex_unlock(&fan_mutex); | |
5433 | return rc; | |
18ad7996 HMH |
5434 | } |
5435 | ||
5436 | static int fan_set_disable(void) | |
5437 | { | |
40ca9fdf HMH |
5438 | int rc; |
5439 | ||
ecf2a80a HMH |
5440 | if (!fan_control_allowed) |
5441 | return -EPERM; | |
5442 | ||
fc589a3c HMH |
5443 | if (mutex_lock_interruptible(&fan_mutex)) |
5444 | return -ERESTARTSYS; | |
40ca9fdf HMH |
5445 | |
5446 | rc = 0; | |
18ad7996 | 5447 | switch (fan_control_access_mode) { |
efa27145 HMH |
5448 | case TPACPI_FAN_WR_ACPI_FANS: |
5449 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 5450 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 5451 | rc = -EIO; |
fe98a52c HMH |
5452 | else { |
5453 | fan_control_desired_level = 0; | |
d8fd94d9 | 5454 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 5455 | } |
18ad7996 HMH |
5456 | break; |
5457 | ||
efa27145 | 5458 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 5459 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 5460 | rc = -EIO; |
fe98a52c HMH |
5461 | else |
5462 | fan_control_desired_level = 0; | |
1c6a334e HMH |
5463 | break; |
5464 | ||
18ad7996 | 5465 | default: |
40ca9fdf | 5466 | rc = -ENXIO; |
18ad7996 | 5467 | } |
40ca9fdf | 5468 | |
fe98a52c | 5469 | |
40ca9fdf HMH |
5470 | mutex_unlock(&fan_mutex); |
5471 | return rc; | |
56b6aeb0 HMH |
5472 | } |
5473 | ||
5474 | static int fan_set_speed(int speed) | |
5475 | { | |
40ca9fdf HMH |
5476 | int rc; |
5477 | ||
ecf2a80a HMH |
5478 | if (!fan_control_allowed) |
5479 | return -EPERM; | |
5480 | ||
fc589a3c HMH |
5481 | if (mutex_lock_interruptible(&fan_mutex)) |
5482 | return -ERESTARTSYS; | |
40ca9fdf HMH |
5483 | |
5484 | rc = 0; | |
56b6aeb0 | 5485 | switch (fan_control_access_mode) { |
efa27145 | 5486 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
5487 | if (speed >= 0 && speed <= 65535) { |
5488 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5489 | speed, speed, speed)) | |
40ca9fdf | 5490 | rc = -EIO; |
56b6aeb0 | 5491 | } else |
40ca9fdf | 5492 | rc = -EINVAL; |
56b6aeb0 HMH |
5493 | break; |
5494 | ||
5495 | default: | |
40ca9fdf | 5496 | rc = -ENXIO; |
56b6aeb0 | 5497 | } |
40ca9fdf HMH |
5498 | |
5499 | mutex_unlock(&fan_mutex); | |
5500 | return rc; | |
56b6aeb0 HMH |
5501 | } |
5502 | ||
5503 | static int fan_read(char *p) | |
5504 | { | |
5505 | int len = 0; | |
5506 | int rc; | |
5507 | u8 status; | |
5508 | unsigned int speed = 0; | |
5509 | ||
5510 | switch (fan_status_access_mode) { | |
efa27145 | 5511 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5512 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 5513 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5514 | return rc; |
5515 | ||
5516 | len += sprintf(p + len, "status:\t\t%s\n" | |
5517 | "level:\t\t%d\n", | |
5518 | (status != 0) ? "enabled" : "disabled", status); | |
5519 | break; | |
5520 | ||
efa27145 | 5521 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5522 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 5523 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5524 | return rc; |
5525 | ||
d8fd94d9 | 5526 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5527 | if (status != fan_control_initial_status) |
d8fd94d9 | 5528 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5529 | else |
5530 | /* Return most likely status. In fact, it | |
5531 | * might be the only possible status */ | |
efa27145 | 5532 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5533 | } |
5534 | ||
5535 | len += sprintf(p + len, "status:\t\t%s\n", | |
5536 | (status != 0) ? "enabled" : "disabled"); | |
5537 | ||
56b6aeb0 HMH |
5538 | if ((rc = fan_get_speed(&speed)) < 0) |
5539 | return rc; | |
5540 | ||
5541 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5542 | ||
efa27145 | 5543 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5544 | /* Disengaged mode takes precedence */ |
5545 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5546 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5547 | len += sprintf(p + len, "level:\t\tauto\n"); |
5548 | else | |
5549 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5550 | break; | |
5551 | ||
efa27145 | 5552 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5553 | default: |
5554 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5555 | } | |
5556 | ||
efa27145 | 5557 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5558 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5559 | ||
5560 | switch (fan_control_access_mode) { | |
efa27145 | 5561 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5562 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5563 | break; | |
5564 | ||
5565 | default: | |
5566 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5567 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5568 | break; |
5569 | } | |
5570 | } | |
18ad7996 | 5571 | |
efa27145 | 5572 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
5573 | len += sprintf(p + len, "commands:\tenable, disable\n" |
5574 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
5575 | "1-120 (seconds))\n"); | |
1da177e4 | 5576 | |
efa27145 | 5577 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5578 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5579 | " (<speed> is 0-65535)\n"); | |
5580 | ||
5581 | return len; | |
78f81cc4 BD |
5582 | } |
5583 | ||
18ad7996 HMH |
5584 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5585 | { | |
5586 | int level; | |
5587 | ||
a12095c2 | 5588 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5589 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
5590 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
5591 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 5592 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5593 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5594 | return 0; |
5595 | ||
fe98a52c | 5596 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
5597 | printk(IBM_ERR "level command accepted for unsupported " |
5598 | "access mode %d", fan_control_access_mode); | |
5599 | ||
5600 | return 1; | |
5601 | } | |
5602 | ||
5603 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5604 | { | |
5605 | if (strlencmp(cmd, "enable") != 0) | |
5606 | return 0; | |
5607 | ||
5608 | if ((*rc = fan_set_enable()) == -ENXIO) | |
5609 | printk(IBM_ERR "enable command accepted for unsupported " | |
5610 | "access mode %d", fan_control_access_mode); | |
5611 | ||
5612 | return 1; | |
5613 | } | |
5614 | ||
5615 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5616 | { | |
5617 | if (strlencmp(cmd, "disable") != 0) | |
5618 | return 0; | |
5619 | ||
5620 | if ((*rc = fan_set_disable()) == -ENXIO) | |
5621 | printk(IBM_ERR "disable command accepted for unsupported " | |
5622 | "access mode %d", fan_control_access_mode); | |
5623 | ||
5624 | return 1; | |
5625 | } | |
5626 | ||
5627 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5628 | { | |
5629 | int speed; | |
5630 | ||
a8b7a662 HMH |
5631 | /* TODO: |
5632 | * Support speed <low> <medium> <high> ? */ | |
5633 | ||
18ad7996 HMH |
5634 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5635 | return 0; | |
5636 | ||
5637 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
5638 | printk(IBM_ERR "speed command accepted for unsupported " | |
5639 | "access mode %d", fan_control_access_mode); | |
5640 | ||
5641 | return 1; | |
5642 | } | |
5643 | ||
16663a87 HMH |
5644 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5645 | { | |
5646 | int interval; | |
5647 | ||
5648 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5649 | return 0; | |
5650 | ||
5651 | if (interval < 0 || interval > 120) | |
5652 | *rc = -EINVAL; | |
5653 | else | |
5654 | fan_watchdog_maxinterval = interval; | |
5655 | ||
5656 | return 1; | |
5657 | } | |
5658 | ||
18ad7996 HMH |
5659 | static int fan_write(char *buf) |
5660 | { | |
5661 | char *cmd; | |
5662 | int rc = 0; | |
5663 | ||
5664 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5665 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5666 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5667 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5668 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5669 | fan_write_cmd_disable(cmd, &rc) || |
5670 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5671 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5672 | fan_write_cmd_speed(cmd, &rc)) |
5673 | ) | |
5674 | rc = -EINVAL; | |
16663a87 HMH |
5675 | else if (!rc) |
5676 | fan_watchdog_reset(); | |
18ad7996 HMH |
5677 | } |
5678 | ||
5679 | return rc; | |
5680 | } | |
5681 | ||
a5763f22 HMH |
5682 | static struct ibm_struct fan_driver_data = { |
5683 | .name = "fan", | |
5684 | .read = fan_read, | |
5685 | .write = fan_write, | |
5686 | .exit = fan_exit, | |
a5763f22 HMH |
5687 | }; |
5688 | ||
56b6aeb0 HMH |
5689 | /**************************************************************************** |
5690 | **************************************************************************** | |
5691 | * | |
5692 | * Infrastructure | |
5693 | * | |
5694 | **************************************************************************** | |
5695 | ****************************************************************************/ | |
5696 | ||
7fd40029 HMH |
5697 | /* sysfs name ---------------------------------------------------------- */ |
5698 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5699 | struct device_attribute *attr, | |
5700 | char *buf) | |
5701 | { | |
5702 | return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME); | |
5703 | } | |
5704 | ||
5705 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5706 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5707 | ||
5708 | /* --------------------------------------------------------------------- */ | |
5709 | ||
56b6aeb0 | 5710 | /* /proc support */ |
94954cc6 | 5711 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5712 | |
56b6aeb0 | 5713 | /* Subdriver registry */ |
a5763f22 HMH |
5714 | static LIST_HEAD(tpacpi_all_drivers); |
5715 | ||
1da177e4 | 5716 | |
56b6aeb0 HMH |
5717 | /* |
5718 | * Module and infrastructure proble, init and exit handling | |
5719 | */ | |
1da177e4 | 5720 | |
fe08bc4b | 5721 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5722 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5723 | { |
a5763f22 | 5724 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5725 | |
a5763f22 | 5726 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5727 | } |
5728 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5729 | ||
a5763f22 | 5730 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5731 | { |
5732 | int ret; | |
a5763f22 | 5733 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5734 | struct proc_dir_entry *entry; |
5735 | ||
a5763f22 HMH |
5736 | BUG_ON(ibm == NULL); |
5737 | ||
5738 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5739 | ||
92641177 | 5740 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5741 | return 0; |
5742 | ||
fe08bc4b HMH |
5743 | dbg_printk(TPACPI_DBG_INIT, |
5744 | "probing for %s\n", ibm->name); | |
5745 | ||
a5763f22 HMH |
5746 | if (iibm->init) { |
5747 | ret = iibm->init(iibm); | |
5fba344c HMH |
5748 | if (ret > 0) |
5749 | return 0; /* probe failed */ | |
5750 | if (ret) | |
1da177e4 | 5751 | return ret; |
a5763f22 | 5752 | |
92641177 | 5753 | ibm->flags.init_called = 1; |
1da177e4 LT |
5754 | } |
5755 | ||
8d376cd6 HMH |
5756 | if (ibm->acpi) { |
5757 | if (ibm->acpi->hid) { | |
5758 | ret = register_tpacpi_subdriver(ibm); | |
5759 | if (ret) | |
5760 | goto err_out; | |
5761 | } | |
5fba344c | 5762 | |
8d376cd6 HMH |
5763 | if (ibm->acpi->notify) { |
5764 | ret = setup_acpi_notify(ibm); | |
5765 | if (ret == -ENODEV) { | |
5766 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
5767 | ibm->name); | |
5768 | ret = 0; | |
5769 | goto err_out; | |
5770 | } | |
5771 | if (ret < 0) | |
5772 | goto err_out; | |
5fba344c | 5773 | } |
5fba344c HMH |
5774 | } |
5775 | ||
fe08bc4b HMH |
5776 | dbg_printk(TPACPI_DBG_INIT, |
5777 | "%s installed\n", ibm->name); | |
5778 | ||
78f81cc4 BD |
5779 | if (ibm->read) { |
5780 | entry = create_proc_entry(ibm->name, | |
5781 | S_IFREG | S_IRUGO | S_IWUSR, | |
5782 | proc_dir); | |
5783 | if (!entry) { | |
5784 | printk(IBM_ERR "unable to create proc entry %s\n", | |
5785 | ibm->name); | |
5fba344c HMH |
5786 | ret = -ENODEV; |
5787 | goto err_out; | |
78f81cc4 BD |
5788 | } |
5789 | entry->owner = THIS_MODULE; | |
5790 | entry->data = ibm; | |
8d376cd6 | 5791 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5792 | if (ibm->write) |
8d376cd6 | 5793 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5794 | ibm->flags.proc_created = 1; |
78f81cc4 | 5795 | } |
1da177e4 | 5796 | |
a5763f22 HMH |
5797 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5798 | ||
1da177e4 | 5799 | return 0; |
5fba344c HMH |
5800 | |
5801 | err_out: | |
fe08bc4b HMH |
5802 | dbg_printk(TPACPI_DBG_INIT, |
5803 | "%s: at error exit path with result %d\n", | |
5804 | ibm->name, ret); | |
5805 | ||
5fba344c HMH |
5806 | ibm_exit(ibm); |
5807 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5808 | } |
5809 | ||
5810 | static void ibm_exit(struct ibm_struct *ibm) | |
5811 | { | |
fe08bc4b | 5812 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
5813 | |
5814 | list_del_init(&ibm->all_drivers); | |
5815 | ||
8d376cd6 | 5816 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
5817 | dbg_printk(TPACPI_DBG_EXIT, |
5818 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
5819 | BUG_ON(!ibm->acpi); |
5820 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5821 | ibm->acpi->type, | |
5822 | dispatch_acpi_notify); | |
5823 | ibm->flags.acpi_notify_installed = 0; | |
5824 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 5825 | } |
1da177e4 | 5826 | |
92641177 | 5827 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
5828 | dbg_printk(TPACPI_DBG_EXIT, |
5829 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 5830 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 5831 | ibm->flags.proc_created = 0; |
5fba344c | 5832 | } |
1da177e4 | 5833 | |
8d376cd6 | 5834 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
5835 | dbg_printk(TPACPI_DBG_EXIT, |
5836 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
5837 | BUG_ON(!ibm->acpi); |
5838 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5839 | kfree(ibm->acpi->driver); | |
5840 | ibm->acpi->driver = NULL; | |
5841 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
5842 | } |
5843 | ||
92641177 | 5844 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 5845 | ibm->exit(); |
92641177 | 5846 | ibm->flags.init_called = 0; |
1da177e4 | 5847 | } |
a5763f22 HMH |
5848 | |
5849 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
5850 | } |
5851 | ||
56b6aeb0 HMH |
5852 | /* Probing */ |
5853 | ||
d5a2f2f1 | 5854 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5855 | { |
1855256c | 5856 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5857 | char ec_fw_string[18]; |
1da177e4 | 5858 | |
d5a2f2f1 HMH |
5859 | if (!tp) |
5860 | return; | |
5861 | ||
5862 | memset(tp, 0, sizeof(*tp)); | |
5863 | ||
5864 | if (dmi_name_in_vendors("IBM")) | |
5865 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5866 | else if (dmi_name_in_vendors("LENOVO")) | |
5867 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5868 | else | |
5869 | return; | |
5870 | ||
5871 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5872 | GFP_KERNEL); | |
5873 | if (!tp->bios_version_str) | |
5874 | return; | |
5875 | tp->bios_model = tp->bios_version_str[0] | |
5876 | | (tp->bios_version_str[1] << 8); | |
5877 | ||
56b6aeb0 HMH |
5878 | /* |
5879 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5880 | * X32 or newer, all Z series; Some models must have an | |
5881 | * up-to-date BIOS or they will not be detected. | |
5882 | * | |
5883 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5884 | */ | |
5885 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5886 | if (sscanf(dev->name, | |
5887 | "IBM ThinkPad Embedded Controller -[%17c", | |
5888 | ec_fw_string) == 1) { | |
5889 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5890 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5891 | |
5892 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5893 | tp->ec_model = ec_fw_string[0] | |
5894 | | (ec_fw_string[1] << 8); | |
5895 | break; | |
78f81cc4 | 5896 | } |
1da177e4 | 5897 | } |
d5a2f2f1 HMH |
5898 | |
5899 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5900 | GFP_KERNEL); | |
5901 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5902 | kfree(tp->model_str); | |
5903 | tp->model_str = NULL; | |
5904 | } | |
1da177e4 LT |
5905 | } |
5906 | ||
5fba344c HMH |
5907 | static int __init probe_for_thinkpad(void) |
5908 | { | |
5909 | int is_thinkpad; | |
5910 | ||
5911 | if (acpi_disabled) | |
5912 | return -ENODEV; | |
5913 | ||
5914 | /* | |
5915 | * Non-ancient models have better DMI tagging, but very old models | |
5916 | * don't. | |
5917 | */ | |
d5a2f2f1 | 5918 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5919 | |
5920 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 5921 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5922 | if (!ec_handle) { |
5923 | if (is_thinkpad) | |
5924 | printk(IBM_ERR | |
5925 | "Not yet supported ThinkPad detected!\n"); | |
5926 | return -ENODEV; | |
5927 | } | |
5928 | ||
0dcef77c HMH |
5929 | /* |
5930 | * Risks a regression on very old machines, but reduces potential | |
5931 | * false positives a damn great deal | |
5932 | */ | |
5933 | if (!is_thinkpad) | |
d5a2f2f1 | 5934 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5935 | |
5936 | if (!is_thinkpad && !force_load) | |
5937 | return -ENODEV; | |
5938 | ||
5fba344c HMH |
5939 | return 0; |
5940 | } | |
5941 | ||
5942 | ||
56b6aeb0 | 5943 | /* Module init, exit, parameters */ |
1da177e4 | 5944 | |
a5763f22 HMH |
5945 | static struct ibm_init_struct ibms_init[] __initdata = { |
5946 | { | |
5947 | .init = thinkpad_acpi_driver_init, | |
5948 | .data = &thinkpad_acpi_driver_data, | |
5949 | }, | |
5950 | { | |
5951 | .init = hotkey_init, | |
5952 | .data = &hotkey_driver_data, | |
5953 | }, | |
5954 | { | |
5955 | .init = bluetooth_init, | |
5956 | .data = &bluetooth_driver_data, | |
5957 | }, | |
5958 | { | |
5959 | .init = wan_init, | |
5960 | .data = &wan_driver_data, | |
5961 | }, | |
5962 | { | |
5963 | .init = video_init, | |
5964 | .data = &video_driver_data, | |
5965 | }, | |
5966 | { | |
5967 | .init = light_init, | |
5968 | .data = &light_driver_data, | |
5969 | }, | |
5970 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5971 | { | |
5972 | .init = dock_init, | |
5973 | .data = &dock_driver_data[0], | |
5974 | }, | |
5975 | { | |
d94a7f16 | 5976 | .init = dock_init2, |
a5763f22 HMH |
5977 | .data = &dock_driver_data[1], |
5978 | }, | |
5979 | #endif | |
5980 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5981 | { | |
5982 | .init = bay_init, | |
5983 | .data = &bay_driver_data, | |
5984 | }, | |
5985 | #endif | |
5986 | { | |
5987 | .init = cmos_init, | |
5988 | .data = &cmos_driver_data, | |
5989 | }, | |
5990 | { | |
5991 | .init = led_init, | |
5992 | .data = &led_driver_data, | |
5993 | }, | |
5994 | { | |
5995 | .init = beep_init, | |
5996 | .data = &beep_driver_data, | |
5997 | }, | |
5998 | { | |
5999 | .init = thermal_init, | |
6000 | .data = &thermal_driver_data, | |
6001 | }, | |
6002 | { | |
6003 | .data = &ecdump_driver_data, | |
6004 | }, | |
6005 | { | |
6006 | .init = brightness_init, | |
6007 | .data = &brightness_driver_data, | |
6008 | }, | |
6009 | { | |
6010 | .data = &volume_driver_data, | |
6011 | }, | |
6012 | { | |
6013 | .init = fan_init, | |
6014 | .data = &fan_driver_data, | |
6015 | }, | |
6016 | }; | |
6017 | ||
3945ac36 | 6018 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
6019 | { |
6020 | unsigned int i; | |
a5763f22 | 6021 | struct ibm_struct *ibm; |
1da177e4 | 6022 | |
59f91ff1 HMH |
6023 | if (!kp || !kp->name || !val) |
6024 | return -EINVAL; | |
6025 | ||
a5763f22 HMH |
6026 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6027 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
6028 | WARN_ON(ibm == NULL); |
6029 | ||
6030 | if (!ibm || !ibm->name) | |
6031 | continue; | |
a5763f22 HMH |
6032 | |
6033 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
6034 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 6035 | return -ENOSPC; |
a5763f22 HMH |
6036 | strcpy(ibms_init[i].param, val); |
6037 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
6038 | return 0; |
6039 | } | |
a5763f22 | 6040 | } |
1da177e4 | 6041 | |
1da177e4 LT |
6042 | return -EINVAL; |
6043 | } | |
6044 | ||
56b6aeb0 HMH |
6045 | static int experimental; |
6046 | module_param(experimental, int, 0); | |
6047 | ||
132ce091 HMH |
6048 | static u32 dbg_level; |
6049 | module_param_named(debug, dbg_level, uint, 0); | |
6050 | ||
0dcef77c | 6051 | static int force_load; |
86cc9445 | 6052 | module_param(force_load, bool, 0); |
0dcef77c | 6053 | |
ecf2a80a | 6054 | static int fan_control_allowed; |
86cc9445 | 6055 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 6056 | |
24d3b774 HMH |
6057 | static int brightness_mode; |
6058 | module_param_named(brightness_mode, brightness_mode, int, 0); | |
6059 | ||
87cc537a HMH |
6060 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6061 | module_param(brightness_enable, uint, 0); | |
6062 | ||
ff80f137 HMH |
6063 | static unsigned int hotkey_report_mode; |
6064 | module_param(hotkey_report_mode, uint, 0); | |
6065 | ||
1da177e4 LT |
6066 | #define IBM_PARAM(feature) \ |
6067 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
6068 | ||
78f81cc4 BD |
6069 | IBM_PARAM(hotkey); |
6070 | IBM_PARAM(bluetooth); | |
6071 | IBM_PARAM(video); | |
6072 | IBM_PARAM(light); | |
85998248 | 6073 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 6074 | IBM_PARAM(dock); |
63e5f248 | 6075 | #endif |
85998248 | 6076 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 6077 | IBM_PARAM(bay); |
85998248 | 6078 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
6079 | IBM_PARAM(cmos); |
6080 | IBM_PARAM(led); | |
6081 | IBM_PARAM(beep); | |
6082 | IBM_PARAM(ecdump); | |
6083 | IBM_PARAM(brightness); | |
6084 | IBM_PARAM(volume); | |
6085 | IBM_PARAM(fan); | |
6086 | ||
1def7115 | 6087 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6088 | { |
6089 | int ret, i; | |
6090 | ||
8fef502e HMH |
6091 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6092 | ||
ff80f137 HMH |
6093 | /* Parameter checking */ |
6094 | if (hotkey_report_mode > 2) | |
6095 | return -EINVAL; | |
6096 | ||
54ae1501 | 6097 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6098 | |
6099 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6100 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6101 | if (ret) { |
6102 | thinkpad_acpi_module_exit(); | |
5fba344c | 6103 | return ret; |
d5a2f2f1 | 6104 | } |
1da177e4 | 6105 | |
54ae1501 | 6106 | /* Driver initialization */ |
d5a2f2f1 | 6107 | |
8d376cd6 HMH |
6108 | IBM_ACPIHANDLE_INIT(ecrd); |
6109 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6110 | |
8d376cd6 | 6111 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 6112 | if (!proc_dir) { |
8d376cd6 | 6113 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 6114 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6115 | return -ENODEV; |
6116 | } | |
6117 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6118 | |
54ae1501 HMH |
6119 | ret = platform_driver_register(&tpacpi_pdriver); |
6120 | if (ret) { | |
7fd40029 | 6121 | printk(IBM_ERR "unable to register main platform driver\n"); |
54ae1501 HMH |
6122 | thinkpad_acpi_module_exit(); |
6123 | return ret; | |
6124 | } | |
ac36393d HMH |
6125 | tp_features.platform_drv_registered = 1; |
6126 | ||
7fd40029 HMH |
6127 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6128 | if (ret) { | |
6129 | printk(IBM_ERR "unable to register hwmon platform driver\n"); | |
6130 | thinkpad_acpi_module_exit(); | |
6131 | return ret; | |
6132 | } | |
6133 | tp_features.sensors_pdrv_registered = 1; | |
6134 | ||
176750d6 | 6135 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6136 | if (!ret) { |
6137 | tp_features.platform_drv_attrs_registered = 1; | |
6138 | ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6139 | } | |
176750d6 HMH |
6140 | if (ret) { |
6141 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
6142 | thinkpad_acpi_module_exit(); | |
6143 | return ret; | |
6144 | } | |
2369cc94 | 6145 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6146 | |
54ae1501 HMH |
6147 | |
6148 | /* Device initialization */ | |
6149 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
6150 | NULL, 0); | |
6151 | if (IS_ERR(tpacpi_pdev)) { | |
6152 | ret = PTR_ERR(tpacpi_pdev); | |
6153 | tpacpi_pdev = NULL; | |
6154 | printk(IBM_ERR "unable to register platform device\n"); | |
6155 | thinkpad_acpi_module_exit(); | |
6156 | return ret; | |
6157 | } | |
7fd40029 HMH |
6158 | tpacpi_sensors_pdev = platform_device_register_simple( |
6159 | IBM_HWMON_DRVR_NAME, | |
6160 | -1, NULL, 0); | |
6161 | if (IS_ERR(tpacpi_sensors_pdev)) { | |
6162 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6163 | tpacpi_sensors_pdev = NULL; | |
6164 | printk(IBM_ERR "unable to register hwmon platform device\n"); | |
6165 | thinkpad_acpi_module_exit(); | |
6166 | return ret; | |
6167 | } | |
6168 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6169 | &dev_attr_thinkpad_acpi_pdev_name); | |
6170 | if (ret) { | |
6171 | printk(IBM_ERR | |
6172 | "unable to create sysfs hwmon device attributes\n"); | |
6173 | thinkpad_acpi_module_exit(); | |
6174 | return ret; | |
6175 | } | |
6176 | tp_features.sensors_pdev_attrs_registered = 1; | |
6177 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6178 | if (IS_ERR(tpacpi_hwmon)) { |
6179 | ret = PTR_ERR(tpacpi_hwmon); | |
6180 | tpacpi_hwmon = NULL; | |
6181 | printk(IBM_ERR "unable to register hwmon device\n"); | |
6182 | thinkpad_acpi_module_exit(); | |
6183 | return ret; | |
6184 | } | |
8523ed6f | 6185 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6186 | tpacpi_inputdev = input_allocate_device(); |
6187 | if (!tpacpi_inputdev) { | |
6188 | printk(IBM_ERR "unable to allocate input device\n"); | |
6189 | thinkpad_acpi_module_exit(); | |
6190 | return -ENOMEM; | |
6191 | } else { | |
6192 | /* Prepare input device, but don't register */ | |
6193 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
6194 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
6195 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
6196 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6197 | thinkpad_id.vendor : | |
6198 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6199 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6200 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6201 | } | |
a5763f22 HMH |
6202 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6203 | ret = ibm_init(&ibms_init[i]); | |
6204 | if (ret >= 0 && *ibms_init[i].param) | |
6205 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6206 | if (ret < 0) { |
1def7115 | 6207 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6208 | return ret; |
6209 | } | |
6210 | } | |
7f5d1cd6 HMH |
6211 | ret = input_register_device(tpacpi_inputdev); |
6212 | if (ret < 0) { | |
6213 | printk(IBM_ERR "unable to register input device\n"); | |
6214 | thinkpad_acpi_module_exit(); | |
6215 | return ret; | |
6216 | } else { | |
6217 | tp_features.input_device_registered = 1; | |
6218 | } | |
1da177e4 | 6219 | |
8fef502e | 6220 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6221 | return 0; |
6222 | } | |
6223 | ||
1def7115 | 6224 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 6225 | { |
a5763f22 HMH |
6226 | struct ibm_struct *ibm, *itmp; |
6227 | ||
8fef502e HMH |
6228 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; |
6229 | ||
a5763f22 HMH |
6230 | list_for_each_entry_safe_reverse(ibm, itmp, |
6231 | &tpacpi_all_drivers, | |
6232 | all_drivers) { | |
6233 | ibm_exit(ibm); | |
6234 | } | |
56b6aeb0 | 6235 | |
a5763f22 | 6236 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 6237 | |
7f5d1cd6 HMH |
6238 | if (tpacpi_inputdev) { |
6239 | if (tp_features.input_device_registered) | |
6240 | input_unregister_device(tpacpi_inputdev); | |
6241 | else | |
6242 | input_free_device(tpacpi_inputdev); | |
6243 | } | |
6244 | ||
54ae1501 HMH |
6245 | if (tpacpi_hwmon) |
6246 | hwmon_device_unregister(tpacpi_hwmon); | |
6247 | ||
7fd40029 HMH |
6248 | if (tp_features.sensors_pdev_attrs_registered) |
6249 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6250 | &dev_attr_thinkpad_acpi_pdev_name); | |
6251 | if (tpacpi_sensors_pdev) | |
6252 | platform_device_unregister(tpacpi_sensors_pdev); | |
54ae1501 HMH |
6253 | if (tpacpi_pdev) |
6254 | platform_device_unregister(tpacpi_pdev); | |
6255 | ||
2369cc94 HMH |
6256 | if (tp_features.sensors_pdrv_attrs_registered) |
6257 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
ac36393d HMH |
6258 | if (tp_features.platform_drv_attrs_registered) |
6259 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6260 | ||
7fd40029 HMH |
6261 | if (tp_features.sensors_pdrv_registered) |
6262 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6263 | ||
ac36393d HMH |
6264 | if (tp_features.platform_drv_registered) |
6265 | platform_driver_unregister(&tpacpi_pdriver); | |
54ae1501 | 6266 | |
56b6aeb0 | 6267 | if (proc_dir) |
8d376cd6 | 6268 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 6269 | |
d5a2f2f1 HMH |
6270 | kfree(thinkpad_id.bios_version_str); |
6271 | kfree(thinkpad_id.ec_version_str); | |
6272 | kfree(thinkpad_id.model_str); | |
56b6aeb0 HMH |
6273 | } |
6274 | ||
1def7115 HMH |
6275 | module_init(thinkpad_acpi_module_init); |
6276 | module_exit(thinkpad_acpi_module_exit); |