]>
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> |
6a2e293c | 6 | * Copyright (C) 2006-2008 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 | ||
1cee5cce | 24 | #define TPACPI_VERSION "0.19" |
50ebec09 | 25 | #define TPACPI_SYSFS_VERSION 0x020200 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
70 | #include <asm/uaccess.h> | |
71 | ||
72 | #include <linux/dmi.h> | |
73 | #include <linux/jiffies.h> | |
74 | #include <linux/workqueue.h> | |
75 | ||
76 | #include <acpi/acpi_drivers.h> | |
77 | #include <acpi/acnamesp.h> | |
78 | ||
79 | #include <linux/pci_ids.h> | |
80 | ||
0c78039f HMH |
81 | |
82 | /* ThinkPad CMOS commands */ | |
83 | #define TP_CMOS_VOLUME_DOWN 0 | |
84 | #define TP_CMOS_VOLUME_UP 1 | |
85 | #define TP_CMOS_VOLUME_MUTE 2 | |
86 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
87 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
88 | ||
89 | /* NVRAM Addresses */ | |
90 | enum tp_nvram_addr { | |
91 | TP_NVRAM_ADDR_HK2 = 0x57, | |
92 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
93 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
94 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
95 | TP_NVRAM_ADDR_MIXER = 0x60, | |
96 | }; | |
97 | ||
98 | /* NVRAM bit masks */ | |
99 | enum { | |
100 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
101 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
102 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
103 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
104 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
105 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
106 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
107 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
108 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
109 | TP_NVRAM_MASK_MUTE = 0x40, | |
110 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
111 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
112 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
113 | }; | |
114 | ||
b21a15f6 | 115 | /* ACPI HIDs */ |
e0c7dfe7 | 116 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
117 | |
118 | /* Input IDs */ | |
119 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
120 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
121 | ||
122 | ||
123 | /**************************************************************************** | |
124 | * Main driver | |
125 | */ | |
126 | ||
e0c7dfe7 HMH |
127 | #define TPACPI_NAME "thinkpad" |
128 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
129 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
130 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
131 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 132 | |
e0c7dfe7 HMH |
133 | #define TPACPI_PROC_DIR "ibm" |
134 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
135 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
136 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" | |
b21a15f6 | 137 | |
e0c7dfe7 | 138 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 139 | |
0c78039f | 140 | /* Debugging */ |
e0c7dfe7 HMH |
141 | #define TPACPI_LOG TPACPI_FILE ": " |
142 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
143 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
144 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
145 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 146 | |
0c78039f HMH |
147 | #define TPACPI_DBG_ALL 0xffff |
148 | #define TPACPI_DBG_ALL 0xffff | |
149 | #define TPACPI_DBG_INIT 0x0001 | |
150 | #define TPACPI_DBG_EXIT 0x0002 | |
151 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
152 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
153 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
154 | } while (0) | |
0c78039f HMH |
155 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
156 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
157 | dbg_printk(a_dbg_level, format, ## arg) | |
158 | static const char *str_supported(int is_supported); | |
159 | #else | |
160 | #define vdbg_printk(a_dbg_level, format, arg...) | |
161 | #endif | |
162 | ||
35ff8b9f HMH |
163 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
164 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
165 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 166 | |
0c78039f HMH |
167 | |
168 | /**************************************************************************** | |
b21a15f6 | 169 | * Driver-wide structs and misc. variables |
0c78039f HMH |
170 | */ |
171 | ||
172 | struct ibm_struct; | |
173 | ||
174 | struct tp_acpi_drv_struct { | |
175 | const struct acpi_device_id *hid; | |
176 | struct acpi_driver *driver; | |
177 | ||
178 | void (*notify) (struct ibm_struct *, u32); | |
179 | acpi_handle *handle; | |
180 | u32 type; | |
181 | struct acpi_device *device; | |
182 | }; | |
183 | ||
184 | struct ibm_struct { | |
185 | char *name; | |
186 | ||
187 | int (*read) (char *); | |
188 | int (*write) (char *); | |
189 | void (*exit) (void); | |
190 | void (*resume) (void); | |
083f1760 | 191 | void (*suspend) (pm_message_t state); |
0c78039f HMH |
192 | |
193 | struct list_head all_drivers; | |
194 | ||
195 | struct tp_acpi_drv_struct *acpi; | |
196 | ||
197 | struct { | |
198 | u8 acpi_driver_registered:1; | |
199 | u8 acpi_notify_installed:1; | |
200 | u8 proc_created:1; | |
201 | u8 init_called:1; | |
202 | u8 experimental:1; | |
203 | } flags; | |
204 | }; | |
205 | ||
206 | struct ibm_init_struct { | |
207 | char param[32]; | |
208 | ||
209 | int (*init) (struct ibm_init_struct *); | |
210 | struct ibm_struct *data; | |
211 | }; | |
212 | ||
213 | static struct { | |
214 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
215 | u32 bay_status:1; | |
216 | u32 bay_eject:1; | |
217 | u32 bay_status2:1; | |
218 | u32 bay_eject2:1; | |
219 | #endif | |
220 | u32 bluetooth:1; | |
221 | u32 hotkey:1; | |
222 | u32 hotkey_mask:1; | |
223 | u32 hotkey_wlsw:1; | |
6c231bd5 | 224 | u32 hotkey_tablet:1; |
0c78039f HMH |
225 | u32 light:1; |
226 | u32 light_status:1; | |
227 | u32 bright_16levels:1; | |
228 | u32 wan:1; | |
229 | u32 fan_ctrl_status_undef:1; | |
230 | u32 input_device_registered:1; | |
231 | u32 platform_drv_registered:1; | |
232 | u32 platform_drv_attrs_registered:1; | |
233 | u32 sensors_pdrv_registered:1; | |
234 | u32 sensors_pdrv_attrs_registered:1; | |
235 | u32 sensors_pdev_attrs_registered:1; | |
236 | u32 hotkey_poll_active:1; | |
237 | } tp_features; | |
238 | ||
239 | struct thinkpad_id_data { | |
240 | unsigned int vendor; /* ThinkPad vendor: | |
241 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
242 | ||
243 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
244 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
245 | ||
246 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
247 | u16 ec_model; | |
248 | ||
249 | char *model_str; | |
250 | }; | |
0c78039f HMH |
251 | static struct thinkpad_id_data thinkpad_id; |
252 | ||
8fef502e HMH |
253 | static enum { |
254 | TPACPI_LIFE_INIT = 0, | |
255 | TPACPI_LIFE_RUNNING, | |
256 | TPACPI_LIFE_EXITING, | |
257 | } tpacpi_lifecycle; | |
258 | ||
b21a15f6 HMH |
259 | static int experimental; |
260 | static u32 dbg_level; | |
261 | ||
56b6aeb0 HMH |
262 | /**************************************************************************** |
263 | **************************************************************************** | |
264 | * | |
265 | * ACPI Helpers and device model | |
266 | * | |
267 | **************************************************************************** | |
268 | ****************************************************************************/ | |
269 | ||
270 | /************************************************************************* | |
271 | * ACPI basic handles | |
272 | */ | |
1da177e4 | 273 | |
94954cc6 | 274 | static acpi_handle root_handle; |
1da177e4 | 275 | |
e0c7dfe7 | 276 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
277 | static acpi_handle object##_handle; \ |
278 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 279 | static char *object##_path; \ |
1da177e4 LT |
280 | static char *object##_paths[] = { paths } |
281 | ||
e0c7dfe7 | 282 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
283 | "\\_SB.PCI.ISA.EC", /* 570 */ |
284 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
285 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
286 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
287 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
288 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 289 | ); |
78f81cc4 | 290 | |
e0c7dfe7 HMH |
291 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
292 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 293 | |
35ff8b9f HMH |
294 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
295 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
296 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
297 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 298 | ); /* all others */ |
78f81cc4 | 299 | |
e0c7dfe7 | 300 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
301 | "^HKEY", /* R30, R31 */ |
302 | "HKEY", /* all others */ | |
56b6aeb0 | 303 | ); /* 570 */ |
78f81cc4 | 304 | |
d7c1d17d HMH |
305 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
306 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
307 | "\\_SB.PCI0.VID0", /* 770e */ | |
308 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
309 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
310 | ); /* R30, R31 */ | |
311 | ||
78f81cc4 | 312 | |
56b6aeb0 HMH |
313 | /************************************************************************* |
314 | * ACPI helpers | |
a8b7a662 HMH |
315 | */ |
316 | ||
1da177e4 LT |
317 | static int acpi_evalf(acpi_handle handle, |
318 | void *res, char *method, char *fmt, ...) | |
319 | { | |
320 | char *fmt0 = fmt; | |
78f81cc4 | 321 | struct acpi_object_list params; |
e0c7dfe7 | 322 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
323 | struct acpi_buffer result, *resultp; |
324 | union acpi_object out_obj; | |
325 | acpi_status status; | |
326 | va_list ap; | |
327 | char res_type; | |
328 | int success; | |
329 | int quiet; | |
1da177e4 LT |
330 | |
331 | if (!*fmt) { | |
e0c7dfe7 | 332 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
333 | return 0; |
334 | } | |
335 | ||
336 | if (*fmt == 'q') { | |
337 | quiet = 1; | |
338 | fmt++; | |
339 | } else | |
340 | quiet = 0; | |
341 | ||
342 | res_type = *(fmt++); | |
343 | ||
344 | params.count = 0; | |
345 | params.pointer = &in_objs[0]; | |
346 | ||
347 | va_start(ap, fmt); | |
348 | while (*fmt) { | |
349 | char c = *(fmt++); | |
350 | switch (c) { | |
351 | case 'd': /* int */ | |
352 | in_objs[params.count].integer.value = va_arg(ap, int); | |
353 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
354 | break; | |
78f81cc4 | 355 | /* add more types as needed */ |
1da177e4 | 356 | default: |
e0c7dfe7 | 357 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
358 | "with invalid format character '%c'\n", c); |
359 | return 0; | |
360 | } | |
361 | } | |
362 | va_end(ap); | |
363 | ||
78f81cc4 BD |
364 | if (res_type != 'v') { |
365 | result.length = sizeof(out_obj); | |
366 | result.pointer = &out_obj; | |
367 | resultp = &result; | |
368 | } else | |
369 | resultp = NULL; | |
1da177e4 | 370 | |
78f81cc4 | 371 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
372 | |
373 | switch (res_type) { | |
78f81cc4 | 374 | case 'd': /* int */ |
1da177e4 LT |
375 | if (res) |
376 | *(int *)res = out_obj.integer.value; | |
377 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
378 | break; | |
78f81cc4 | 379 | case 'v': /* void */ |
1da177e4 LT |
380 | success = status == AE_OK; |
381 | break; | |
78f81cc4 | 382 | /* add more types as needed */ |
1da177e4 | 383 | default: |
e0c7dfe7 | 384 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
385 | "with invalid format character '%c'\n", res_type); |
386 | return 0; | |
387 | } | |
388 | ||
56b6aeb0 | 389 | if (!success && !quiet) |
e0c7dfe7 | 390 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
391 | method, fmt0, status); |
392 | ||
393 | return success; | |
394 | } | |
395 | ||
35ff8b9f | 396 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
397 | { |
398 | int v; | |
399 | ||
400 | if (ecrd_handle) { | |
401 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
402 | return 0; | |
403 | *p = v; | |
404 | } else { | |
405 | if (ec_read(i, p) < 0) | |
406 | return 0; | |
407 | } | |
408 | ||
409 | return 1; | |
410 | } | |
411 | ||
412 | static int acpi_ec_write(int i, u8 v) | |
413 | { | |
414 | if (ecwr_handle) { | |
415 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
416 | return 0; | |
417 | } else { | |
418 | if (ec_write(i, v) < 0) | |
419 | return 0; | |
420 | } | |
421 | ||
422 | return 1; | |
423 | } | |
424 | ||
013c40e4 | 425 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
426 | static int _sta(acpi_handle handle) |
427 | { | |
428 | int status; | |
429 | ||
430 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
431 | status = 0; | |
432 | ||
433 | return status; | |
434 | } | |
013c40e4 | 435 | #endif |
56b6aeb0 | 436 | |
c9bea99c HMH |
437 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
438 | { | |
439 | if (!cmos_handle) | |
440 | return -ENXIO; | |
441 | ||
442 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
443 | return -EIO; | |
444 | ||
445 | return 0; | |
446 | } | |
447 | ||
56b6aeb0 HMH |
448 | /************************************************************************* |
449 | * ACPI device model | |
450 | */ | |
451 | ||
35ff8b9f HMH |
452 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
453 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
454 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
455 | ||
8d376cd6 | 456 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
457 | acpi_handle *handle, acpi_handle parent, |
458 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
459 | { |
460 | int i; | |
461 | acpi_status status; | |
462 | ||
5ae930e6 HMH |
463 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
464 | name); | |
465 | ||
56b6aeb0 HMH |
466 | for (i = 0; i < num_paths; i++) { |
467 | status = acpi_get_handle(parent, paths[i], handle); | |
468 | if (ACPI_SUCCESS(status)) { | |
469 | *path = paths[i]; | |
5ae930e6 HMH |
470 | dbg_printk(TPACPI_DBG_INIT, |
471 | "Found ACPI handle %s for %s\n", | |
472 | *path, name); | |
56b6aeb0 HMH |
473 | return; |
474 | } | |
475 | } | |
476 | ||
5ae930e6 HMH |
477 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
478 | name); | |
56b6aeb0 HMH |
479 | *handle = NULL; |
480 | } | |
481 | ||
8d376cd6 | 482 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
483 | { |
484 | struct ibm_struct *ibm = data; | |
485 | ||
8fef502e HMH |
486 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
487 | return; | |
488 | ||
8d376cd6 | 489 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
490 | return; |
491 | ||
8d376cd6 | 492 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
493 | } |
494 | ||
8d376cd6 | 495 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
496 | { |
497 | acpi_status status; | |
5ae930e6 | 498 | int rc; |
56b6aeb0 | 499 | |
8d376cd6 HMH |
500 | BUG_ON(!ibm->acpi); |
501 | ||
502 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
503 | return 0; |
504 | ||
5ae930e6 | 505 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
506 | "setting up ACPI notify for %s\n", ibm->name); |
507 | ||
5ae930e6 HMH |
508 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
509 | if (rc < 0) { | |
e0c7dfe7 | 510 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 511 | ibm->name, rc); |
56b6aeb0 HMH |
512 | return -ENODEV; |
513 | } | |
514 | ||
8d376cd6 HMH |
515 | acpi_driver_data(ibm->acpi->device) = ibm; |
516 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 517 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 518 | ibm->name); |
56b6aeb0 | 519 | |
8d376cd6 HMH |
520 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
521 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
522 | if (ACPI_FAILURE(status)) { |
523 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
524 | printk(TPACPI_NOTICE |
525 | "another device driver is already " | |
526 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 527 | } else { |
35ff8b9f HMH |
528 | printk(TPACPI_ERR |
529 | "acpi_install_notify_handler(%s) failed: %d\n", | |
530 | ibm->name, status); | |
56b6aeb0 HMH |
531 | } |
532 | return -ENODEV; | |
533 | } | |
8d376cd6 | 534 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
535 | return 0; |
536 | } | |
537 | ||
8d376cd6 | 538 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
539 | { |
540 | return 0; | |
541 | } | |
542 | ||
6700121b | 543 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 544 | { |
5ae930e6 | 545 | int rc; |
56b6aeb0 | 546 | |
fe08bc4b HMH |
547 | dbg_printk(TPACPI_DBG_INIT, |
548 | "registering %s as an ACPI driver\n", ibm->name); | |
549 | ||
8d376cd6 HMH |
550 | BUG_ON(!ibm->acpi); |
551 | ||
552 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
553 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 554 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 555 | return -ENOMEM; |
56b6aeb0 HMH |
556 | } |
557 | ||
e0c7dfe7 | 558 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 559 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 560 | |
8d376cd6 | 561 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 562 | |
5ae930e6 HMH |
563 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
564 | if (rc < 0) { | |
e0c7dfe7 | 565 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 566 | ibm->name, rc); |
8d376cd6 HMH |
567 | kfree(ibm->acpi->driver); |
568 | ibm->acpi->driver = NULL; | |
5ae930e6 | 569 | } else if (!rc) |
8d376cd6 | 570 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 571 | |
5ae930e6 | 572 | return rc; |
56b6aeb0 HMH |
573 | } |
574 | ||
575 | ||
576 | /**************************************************************************** | |
577 | **************************************************************************** | |
578 | * | |
579 | * Procfs Helpers | |
580 | * | |
581 | **************************************************************************** | |
582 | ****************************************************************************/ | |
583 | ||
8d376cd6 HMH |
584 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
585 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
586 | { |
587 | struct ibm_struct *ibm = data; | |
588 | int len; | |
589 | ||
590 | if (!ibm || !ibm->read) | |
591 | return -EINVAL; | |
592 | ||
593 | len = ibm->read(page); | |
594 | if (len < 0) | |
595 | return len; | |
596 | ||
597 | if (len <= off + count) | |
598 | *eof = 1; | |
599 | *start = page + off; | |
600 | len -= off; | |
601 | if (len > count) | |
602 | len = count; | |
603 | if (len < 0) | |
604 | len = 0; | |
605 | ||
606 | return len; | |
607 | } | |
608 | ||
8d376cd6 | 609 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 610 | const char __user *userbuf, |
8d376cd6 | 611 | unsigned long count, void *data) |
56b6aeb0 HMH |
612 | { |
613 | struct ibm_struct *ibm = data; | |
614 | char *kernbuf; | |
615 | int ret; | |
616 | ||
617 | if (!ibm || !ibm->write) | |
618 | return -EINVAL; | |
619 | ||
620 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
621 | if (!kernbuf) | |
622 | return -ENOMEM; | |
1da177e4 | 623 | |
56b6aeb0 HMH |
624 | if (copy_from_user(kernbuf, userbuf, count)) { |
625 | kfree(kernbuf); | |
626 | return -EFAULT; | |
627 | } | |
1da177e4 | 628 | |
56b6aeb0 HMH |
629 | kernbuf[count] = 0; |
630 | strcat(kernbuf, ","); | |
631 | ret = ibm->write(kernbuf); | |
632 | if (ret == 0) | |
633 | ret = count; | |
1da177e4 | 634 | |
56b6aeb0 HMH |
635 | kfree(kernbuf); |
636 | ||
637 | return ret; | |
1da177e4 LT |
638 | } |
639 | ||
640 | static char *next_cmd(char **cmds) | |
641 | { | |
642 | char *start = *cmds; | |
643 | char *end; | |
644 | ||
645 | while ((end = strchr(start, ',')) && end == start) | |
646 | start = end + 1; | |
647 | ||
648 | if (!end) | |
649 | return NULL; | |
650 | ||
651 | *end = 0; | |
652 | *cmds = end + 1; | |
653 | return start; | |
654 | } | |
655 | ||
56b6aeb0 | 656 | |
54ae1501 HMH |
657 | /**************************************************************************** |
658 | **************************************************************************** | |
659 | * | |
7f5d1cd6 | 660 | * Device model: input, hwmon and platform |
54ae1501 HMH |
661 | * |
662 | **************************************************************************** | |
663 | ****************************************************************************/ | |
664 | ||
94954cc6 | 665 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 666 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 667 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 668 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 669 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 670 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 671 | |
083f1760 HMH |
672 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
673 | pm_message_t state) | |
674 | { | |
675 | struct ibm_struct *ibm, *itmp; | |
676 | ||
677 | list_for_each_entry_safe(ibm, itmp, | |
678 | &tpacpi_all_drivers, | |
679 | all_drivers) { | |
680 | if (ibm->suspend) | |
681 | (ibm->suspend)(state); | |
682 | } | |
683 | ||
684 | return 0; | |
685 | } | |
686 | ||
e295e850 HMH |
687 | static int tpacpi_resume_handler(struct platform_device *pdev) |
688 | { | |
689 | struct ibm_struct *ibm, *itmp; | |
690 | ||
691 | list_for_each_entry_safe(ibm, itmp, | |
692 | &tpacpi_all_drivers, | |
693 | all_drivers) { | |
694 | if (ibm->resume) | |
695 | (ibm->resume)(); | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
54ae1501 HMH |
701 | static struct platform_driver tpacpi_pdriver = { |
702 | .driver = { | |
e0c7dfe7 | 703 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
704 | .owner = THIS_MODULE, |
705 | }, | |
083f1760 | 706 | .suspend = tpacpi_suspend_handler, |
e295e850 | 707 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
708 | }; |
709 | ||
7fd40029 HMH |
710 | static struct platform_driver tpacpi_hwmon_pdriver = { |
711 | .driver = { | |
e0c7dfe7 | 712 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
713 | .owner = THIS_MODULE, |
714 | }, | |
715 | }; | |
54ae1501 | 716 | |
176750d6 | 717 | /************************************************************************* |
b21a15f6 | 718 | * sysfs support helpers |
176750d6 HMH |
719 | */ |
720 | ||
b21a15f6 HMH |
721 | struct attribute_set { |
722 | unsigned int members, max_members; | |
723 | struct attribute_group group; | |
176750d6 HMH |
724 | }; |
725 | ||
7252374a HMH |
726 | struct attribute_set_obj { |
727 | struct attribute_set s; | |
728 | struct attribute *a; | |
729 | } __attribute__((packed)); | |
730 | ||
731 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 732 | const char *name) |
7252374a HMH |
733 | { |
734 | struct attribute_set_obj *sobj; | |
735 | ||
736 | if (max_members == 0) | |
737 | return NULL; | |
738 | ||
739 | /* Allocates space for implicit NULL at the end too */ | |
740 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
741 | max_members * sizeof(struct attribute *), | |
742 | GFP_KERNEL); | |
743 | if (!sobj) | |
744 | return NULL; | |
745 | sobj->s.max_members = max_members; | |
746 | sobj->s.group.attrs = &sobj->a; | |
747 | sobj->s.group.name = name; | |
748 | ||
749 | return &sobj->s; | |
750 | } | |
751 | ||
f74a27d4 HMH |
752 | #define destroy_attr_set(_set) \ |
753 | kfree(_set); | |
754 | ||
7252374a | 755 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 756 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
757 | { |
758 | if (!s || !attr) | |
759 | return -EINVAL; | |
760 | ||
761 | if (s->members >= s->max_members) | |
762 | return -ENOMEM; | |
763 | ||
764 | s->group.attrs[s->members] = attr; | |
765 | s->members++; | |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
35ff8b9f | 770 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
771 | struct attribute **attr, |
772 | unsigned int count) | |
773 | { | |
774 | int i, res; | |
775 | ||
776 | for (i = 0; i < count; i++) { | |
777 | res = add_to_attr_set(s, attr[i]); | |
778 | if (res) | |
779 | return res; | |
780 | } | |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
35ff8b9f | 785 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
786 | { |
787 | sysfs_remove_group(kobj, &s->group); | |
788 | destroy_attr_set(s); | |
789 | } | |
790 | ||
f74a27d4 HMH |
791 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
792 | sysfs_create_group(_kobj, &_attr_set->group) | |
793 | ||
7252374a HMH |
794 | static int parse_strtoul(const char *buf, |
795 | unsigned long max, unsigned long *value) | |
796 | { | |
797 | char *endp; | |
798 | ||
32afbf07 HMH |
799 | while (*buf && isspace(*buf)) |
800 | buf++; | |
7252374a HMH |
801 | *value = simple_strtoul(buf, &endp, 0); |
802 | while (*endp && isspace(*endp)) | |
803 | endp++; | |
804 | if (*endp || *value > max) | |
805 | return -EINVAL; | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
56b6aeb0 | 810 | /************************************************************************* |
b21a15f6 | 811 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
812 | */ |
813 | ||
b21a15f6 HMH |
814 | /* interface_version --------------------------------------------------- */ |
815 | static ssize_t tpacpi_driver_interface_version_show( | |
816 | struct device_driver *drv, | |
817 | char *buf) | |
1da177e4 | 818 | { |
b21a15f6 HMH |
819 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
820 | } | |
821 | ||
822 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
823 | tpacpi_driver_interface_version_show, NULL); | |
824 | ||
825 | /* debug_level --------------------------------------------------------- */ | |
826 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
827 | char *buf) | |
828 | { | |
829 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
830 | } | |
831 | ||
832 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
833 | const char *buf, size_t count) | |
834 | { | |
835 | unsigned long t; | |
836 | ||
837 | if (parse_strtoul(buf, 0xffff, &t)) | |
838 | return -EINVAL; | |
839 | ||
840 | dbg_level = t; | |
841 | ||
842 | return count; | |
843 | } | |
844 | ||
845 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
846 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
847 | ||
848 | /* version ------------------------------------------------------------- */ | |
849 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
850 | char *buf) | |
851 | { | |
35ff8b9f HMH |
852 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
853 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
854 | } |
855 | ||
856 | static DRIVER_ATTR(version, S_IRUGO, | |
857 | tpacpi_driver_version_show, NULL); | |
858 | ||
859 | /* --------------------------------------------------------------------- */ | |
860 | ||
35ff8b9f | 861 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
862 | &driver_attr_debug_level, &driver_attr_version, |
863 | &driver_attr_interface_version, | |
864 | }; | |
865 | ||
866 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
867 | { | |
868 | int i, res; | |
869 | ||
870 | i = 0; | |
871 | res = 0; | |
872 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
873 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
874 | i++; | |
875 | } | |
876 | ||
877 | return res; | |
878 | } | |
879 | ||
880 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
881 | { | |
882 | int i; | |
883 | ||
35ff8b9f | 884 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
885 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
886 | } | |
887 | ||
888 | /**************************************************************************** | |
889 | **************************************************************************** | |
890 | * | |
891 | * Subdrivers | |
892 | * | |
893 | **************************************************************************** | |
894 | ****************************************************************************/ | |
895 | ||
896 | /************************************************************************* | |
897 | * thinkpad-acpi init subdriver | |
898 | */ | |
899 | ||
900 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
901 | { | |
e0c7dfe7 HMH |
902 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
903 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 904 | |
e0c7dfe7 | 905 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
906 | (thinkpad_id.bios_version_str) ? |
907 | thinkpad_id.bios_version_str : "unknown", | |
908 | (thinkpad_id.ec_version_str) ? | |
909 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
910 | |
911 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
e0c7dfe7 | 912 | printk(TPACPI_INFO "%s %s\n", |
d5a2f2f1 HMH |
913 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
914 | "IBM" : ((thinkpad_id.vendor == | |
915 | PCI_VENDOR_ID_LENOVO) ? | |
916 | "Lenovo" : "Unknown vendor"), | |
917 | thinkpad_id.model_str); | |
3945ac36 | 918 | |
1da177e4 LT |
919 | return 0; |
920 | } | |
921 | ||
643f12db | 922 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
923 | { |
924 | int len = 0; | |
925 | ||
e0c7dfe7 HMH |
926 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
927 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
928 | |
929 | return len; | |
930 | } | |
931 | ||
a5763f22 HMH |
932 | static struct ibm_struct thinkpad_acpi_driver_data = { |
933 | .name = "driver", | |
934 | .read = thinkpad_acpi_driver_read, | |
935 | }; | |
936 | ||
56b6aeb0 HMH |
937 | /************************************************************************* |
938 | * Hotkey subdriver | |
939 | */ | |
940 | ||
f74a27d4 HMH |
941 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
942 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
943 | TP_ACPI_HOTKEYSCAN_FNF2, | |
944 | TP_ACPI_HOTKEYSCAN_FNF3, | |
945 | TP_ACPI_HOTKEYSCAN_FNF4, | |
946 | TP_ACPI_HOTKEYSCAN_FNF5, | |
947 | TP_ACPI_HOTKEYSCAN_FNF6, | |
948 | TP_ACPI_HOTKEYSCAN_FNF7, | |
949 | TP_ACPI_HOTKEYSCAN_FNF8, | |
950 | TP_ACPI_HOTKEYSCAN_FNF9, | |
951 | TP_ACPI_HOTKEYSCAN_FNF10, | |
952 | TP_ACPI_HOTKEYSCAN_FNF11, | |
953 | TP_ACPI_HOTKEYSCAN_FNF12, | |
954 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
955 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
956 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
957 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
958 | TP_ACPI_HOTKEYSCAN_FNEND, | |
959 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
960 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
961 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
962 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
963 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
964 | TP_ACPI_HOTKEYSCAN_MUTE, | |
965 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
966 | }; | |
967 | ||
01e88f25 HMH |
968 | enum { /* Keys available through NVRAM polling */ |
969 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
970 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
971 | }; | |
972 | ||
973 | enum { /* Positions of some of the keys in hotkey masks */ | |
974 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
975 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
976 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
977 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
978 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
979 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
980 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
981 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
982 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
983 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
984 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
985 | }; | |
986 | ||
987 | enum { /* NVRAM to ACPI HKEY group map */ | |
988 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
989 | TP_ACPI_HKEY_ZOOM_MASK | | |
990 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
991 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
992 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
993 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
994 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
995 | TP_ACPI_HKEY_VOLDWN_MASK | | |
996 | TP_ACPI_HKEY_MUTE_MASK, | |
997 | }; | |
998 | ||
999 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1000 | struct tp_nvram_state { | |
1001 | u16 thinkpad_toggle:1; | |
1002 | u16 zoom_toggle:1; | |
1003 | u16 display_toggle:1; | |
1004 | u16 thinklight_toggle:1; | |
1005 | u16 hibernate_toggle:1; | |
1006 | u16 displayexp_toggle:1; | |
1007 | u16 display_state:1; | |
1008 | u16 brightness_toggle:1; | |
1009 | u16 volume_toggle:1; | |
1010 | u16 mute:1; | |
1011 | ||
1012 | u8 brightness_level; | |
1013 | u8 volume_level; | |
1014 | }; | |
1015 | ||
1016 | static struct task_struct *tpacpi_hotkey_task; | |
1017 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1018 | static int hotkey_poll_freq = 10; /* Hz */ | |
1019 | static struct mutex hotkey_thread_mutex; | |
1020 | static struct mutex hotkey_thread_data_mutex; | |
1021 | static unsigned int hotkey_config_change; | |
1022 | ||
1023 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1024 | ||
1025 | #define hotkey_source_mask 0U | |
1026 | ||
1027 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1028 | ||
f74a27d4 HMH |
1029 | static struct mutex hotkey_mutex; |
1030 | ||
a713b4d7 HMH |
1031 | static enum { /* Reasons for waking up */ |
1032 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1033 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1034 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1035 | } hotkey_wakeup_reason; | |
1036 | ||
1037 | static int hotkey_autosleep_ack; | |
1038 | ||
78f81cc4 | 1039 | static int hotkey_orig_status; |
ae92bd17 | 1040 | static u32 hotkey_orig_mask; |
9b010de5 | 1041 | static u32 hotkey_all_mask; |
6a38abbf | 1042 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1043 | static u32 hotkey_mask; |
6a38abbf | 1044 | |
b21a15f6 HMH |
1045 | static unsigned int hotkey_report_mode; |
1046 | ||
edf0e0e5 | 1047 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1048 | |
94954cc6 | 1049 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1050 | |
01e88f25 HMH |
1051 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1052 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1053 | do { \ |
1054 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1055 | hotkey_config_change++; \ | |
1056 | } while (0); | |
01e88f25 HMH |
1057 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1058 | mutex_unlock(&hotkey_thread_data_mutex); | |
1059 | #else | |
1060 | #define HOTKEY_CONFIG_CRITICAL_START | |
1061 | #define HOTKEY_CONFIG_CRITICAL_END | |
1062 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1063 | ||
6c231bd5 HMH |
1064 | /* HKEY.MHKG() return bits */ |
1065 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1066 | ||
74941a69 HMH |
1067 | static int hotkey_get_wlsw(int *status) |
1068 | { | |
1069 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1070 | return -EIO; | |
1071 | return 0; | |
1072 | } | |
1073 | ||
6c231bd5 HMH |
1074 | static int hotkey_get_tablet_mode(int *status) |
1075 | { | |
1076 | int s; | |
1077 | ||
1078 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1079 | return -EIO; | |
1080 | ||
cee47f5a HMH |
1081 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1082 | return 0; | |
6c231bd5 HMH |
1083 | } |
1084 | ||
b2c985e7 HMH |
1085 | /* |
1086 | * Call with hotkey_mutex held | |
1087 | */ | |
1088 | static int hotkey_mask_get(void) | |
1089 | { | |
01e88f25 HMH |
1090 | u32 m = 0; |
1091 | ||
b2c985e7 | 1092 | if (tp_features.hotkey_mask) { |
01e88f25 | 1093 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1094 | return -EIO; |
1095 | } | |
01e88f25 | 1096 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1097 | |
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | /* | |
1102 | * Call with hotkey_mutex held | |
1103 | */ | |
1104 | static int hotkey_mask_set(u32 mask) | |
1105 | { | |
1106 | int i; | |
1107 | int rc = 0; | |
1108 | ||
1109 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1110 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1111 | for (i = 0; i < 32; i++) { |
1112 | u32 m = 1 << i; | |
01e88f25 HMH |
1113 | /* enable in firmware mask only keys not in NVRAM |
1114 | * mode, but enable the key in the cached hotkey_mask | |
1115 | * regardless of mode, or the key will end up | |
1116 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1117 | if (!acpi_evalf(hkey_handle, |
1118 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1119 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1120 | rc = -EIO; |
1121 | break; | |
1122 | } else { | |
1123 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1124 | } | |
1125 | } | |
01e88f25 | 1126 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1127 | |
1128 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1129 | if (!hotkey_mask_get() && !rc && |
1130 | (hotkey_mask & ~hotkey_source_mask) != | |
1131 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1132 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1133 | "requested hot key mask 0x%08x, but " |
1134 | "firmware forced it to 0x%08x\n", | |
1135 | mask, hotkey_mask); | |
1136 | } | |
01e88f25 HMH |
1137 | } else { |
1138 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1139 | HOTKEY_CONFIG_CRITICAL_START | |
1140 | hotkey_mask = mask & hotkey_source_mask; | |
1141 | HOTKEY_CONFIG_CRITICAL_END | |
1142 | hotkey_mask_get(); | |
1143 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1144 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1145 | "requested hot key mask 0x%08x, " |
1146 | "forced to 0x%08x (NVRAM poll mask is " | |
1147 | "0x%08x): no firmware mask support\n", | |
1148 | mask, hotkey_mask, hotkey_source_mask); | |
1149 | } | |
1150 | #else | |
1151 | hotkey_mask_get(); | |
1152 | rc = -ENXIO; | |
1153 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1154 | } |
1155 | ||
1156 | return rc; | |
1157 | } | |
1158 | ||
1159 | static int hotkey_status_get(int *status) | |
1160 | { | |
1161 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1162 | return -EIO; | |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | static int hotkey_status_set(int status) | |
1168 | { | |
1169 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1170 | return -EIO; | |
1171 | ||
1172 | return 0; | |
1173 | } | |
1174 | ||
b7c8c200 HMH |
1175 | static void tpacpi_input_send_radiosw(void) |
1176 | { | |
1177 | int wlsw; | |
1178 | ||
b7c8c200 | 1179 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
d147da73 HMH |
1180 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1181 | ||
b7c8c200 HMH |
1182 | input_report_switch(tpacpi_inputdev, |
1183 | SW_RADIO, !!wlsw); | |
1184 | input_sync(tpacpi_inputdev); | |
b7c8c200 | 1185 | |
d147da73 HMH |
1186 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
1187 | } | |
b7c8c200 HMH |
1188 | } |
1189 | ||
6c231bd5 | 1190 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1191 | { |
6c231bd5 | 1192 | int state; |
b3ec6f91 | 1193 | |
6c231bd5 HMH |
1194 | if (tp_features.hotkey_tablet && |
1195 | !hotkey_get_tablet_mode(&state)) { | |
1196 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1197 | |
6c231bd5 HMH |
1198 | input_report_switch(tpacpi_inputdev, |
1199 | SW_TABLET_MODE, !!state); | |
1200 | input_sync(tpacpi_inputdev); | |
1201 | ||
1202 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1203 | } | |
b3ec6f91 HMH |
1204 | } |
1205 | ||
b7c8c200 HMH |
1206 | static void tpacpi_input_send_key(unsigned int scancode) |
1207 | { | |
1208 | unsigned int keycode; | |
1209 | ||
1210 | keycode = hotkey_keycode_map[scancode]; | |
1211 | ||
1212 | if (keycode != KEY_RESERVED) { | |
1213 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1214 | ||
1215 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1216 | if (keycode == KEY_UNKNOWN) | |
1217 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1218 | scancode); | |
1219 | input_sync(tpacpi_inputdev); | |
1220 | ||
1221 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1222 | if (keycode == KEY_UNKNOWN) | |
1223 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1224 | scancode); | |
1225 | input_sync(tpacpi_inputdev); | |
1226 | ||
1227 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1228 | } | |
1229 | } | |
1230 | ||
01e88f25 HMH |
1231 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1232 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1233 | ||
1234 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1235 | { | |
1236 | tpacpi_input_send_key(scancode); | |
1237 | if (hotkey_report_mode < 2) { | |
1238 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1239 | 0x80, 0x1001 + scancode); | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1244 | { | |
1245 | u8 d; | |
1246 | ||
1247 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1248 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1249 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1250 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1251 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1252 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1253 | } | |
1254 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1255 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1256 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1257 | } | |
1258 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1259 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1260 | n->displayexp_toggle = | |
1261 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1262 | } | |
1263 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1264 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1265 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1266 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1267 | n->brightness_toggle = | |
1268 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1269 | } | |
1270 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1271 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1272 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1273 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1274 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1275 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1276 | } | |
1277 | } | |
1278 | ||
1279 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1280 | do { \ |
1281 | if ((mask & (1 << __scancode)) && \ | |
1282 | oldn->__member != newn->__member) \ | |
1283 | tpacpi_hotkey_send_key(__scancode); \ | |
1284 | } while (0) | |
01e88f25 HMH |
1285 | |
1286 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1287 | do { if (mask & (1 << __scancode)) \ | |
1288 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1289 | ||
1290 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1291 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1292 | u32 mask) |
1293 | { | |
1294 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1295 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1296 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1297 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1298 | ||
1299 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1300 | ||
1301 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1302 | ||
1303 | /* handle volume */ | |
1304 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1305 | if (oldn->mute != newn->mute) { | |
1306 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1307 | } | |
1308 | if (oldn->volume_level > newn->volume_level) { | |
1309 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1310 | } else if (oldn->volume_level < newn->volume_level) { | |
1311 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1312 | } else if (oldn->mute == newn->mute) { | |
1313 | /* repeated key presses that didn't change state */ | |
1314 | if (newn->mute) { | |
1315 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1316 | } else if (newn->volume_level != 0) { | |
1317 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1318 | } else { | |
1319 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1320 | } | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | /* handle brightness */ | |
1325 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1326 | if (oldn->brightness_level < newn->brightness_level) { | |
1327 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1328 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1329 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1330 | } else { | |
1331 | /* repeated key presses that didn't change state */ | |
1332 | if (newn->brightness_level != 0) { | |
1333 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1334 | } else { | |
1335 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1336 | } | |
1337 | } | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | #undef TPACPI_COMPARE_KEY | |
1342 | #undef TPACPI_MAY_SEND_KEY | |
1343 | ||
1344 | static int hotkey_kthread(void *data) | |
1345 | { | |
1346 | struct tp_nvram_state s[2]; | |
1347 | u32 mask; | |
1348 | unsigned int si, so; | |
1349 | unsigned long t; | |
1350 | unsigned int change_detector, must_reset; | |
1351 | ||
1352 | mutex_lock(&hotkey_thread_mutex); | |
1353 | ||
1354 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1355 | goto exit; | |
1356 | ||
1357 | set_freezable(); | |
1358 | ||
1359 | so = 0; | |
1360 | si = 1; | |
1361 | t = 0; | |
1362 | ||
1363 | /* Initial state for compares */ | |
1364 | mutex_lock(&hotkey_thread_data_mutex); | |
1365 | change_detector = hotkey_config_change; | |
1366 | mask = hotkey_source_mask & hotkey_mask; | |
1367 | mutex_unlock(&hotkey_thread_data_mutex); | |
1368 | hotkey_read_nvram(&s[so], mask); | |
1369 | ||
1370 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1371 | if (t == 0) | |
1372 | t = 1000/hotkey_poll_freq; | |
1373 | t = msleep_interruptible(t); | |
1374 | if (unlikely(kthread_should_stop())) | |
1375 | break; | |
1376 | must_reset = try_to_freeze(); | |
1377 | if (t > 0 && !must_reset) | |
1378 | continue; | |
1379 | ||
1380 | mutex_lock(&hotkey_thread_data_mutex); | |
1381 | if (must_reset || hotkey_config_change != change_detector) { | |
1382 | /* forget old state on thaw or config change */ | |
1383 | si = so; | |
1384 | t = 0; | |
1385 | change_detector = hotkey_config_change; | |
1386 | } | |
1387 | mask = hotkey_source_mask & hotkey_mask; | |
1388 | mutex_unlock(&hotkey_thread_data_mutex); | |
1389 | ||
1390 | if (likely(mask)) { | |
1391 | hotkey_read_nvram(&s[si], mask); | |
1392 | if (likely(si != so)) { | |
1393 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1394 | mask); |
01e88f25 HMH |
1395 | } |
1396 | } | |
1397 | ||
1398 | so = si; | |
1399 | si ^= 1; | |
1400 | } | |
1401 | ||
1402 | exit: | |
1403 | mutex_unlock(&hotkey_thread_mutex); | |
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | static void hotkey_poll_stop_sync(void) | |
1408 | { | |
1409 | if (tpacpi_hotkey_task) { | |
1410 | if (frozen(tpacpi_hotkey_task) || | |
1411 | freezing(tpacpi_hotkey_task)) | |
1412 | thaw_process(tpacpi_hotkey_task); | |
1413 | ||
1414 | kthread_stop(tpacpi_hotkey_task); | |
1415 | tpacpi_hotkey_task = NULL; | |
1416 | mutex_lock(&hotkey_thread_mutex); | |
1417 | /* at this point, the thread did exit */ | |
1418 | mutex_unlock(&hotkey_thread_mutex); | |
1419 | } | |
1420 | } | |
1421 | ||
1422 | /* call with hotkey_mutex held */ | |
1423 | static void hotkey_poll_setup(int may_warn) | |
1424 | { | |
1425 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1426 | hotkey_poll_freq > 0 && | |
1427 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1428 | if (!tpacpi_hotkey_task) { | |
1429 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
35ff8b9f HMH |
1430 | NULL, |
1431 | TPACPI_FILE "d"); | |
01e88f25 HMH |
1432 | if (IS_ERR(tpacpi_hotkey_task)) { |
1433 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1434 | printk(TPACPI_ERR |
1435 | "could not create kernel thread " | |
01e88f25 HMH |
1436 | "for hotkey polling\n"); |
1437 | } | |
1438 | } | |
1439 | } else { | |
1440 | hotkey_poll_stop_sync(); | |
1441 | if (may_warn && | |
1442 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1443 | printk(TPACPI_NOTICE |
1444 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1445 | "which is currently disabled\n", |
1446 | hotkey_source_mask); | |
1447 | } | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | static void hotkey_poll_setup_safe(int may_warn) | |
1452 | { | |
1453 | mutex_lock(&hotkey_mutex); | |
1454 | hotkey_poll_setup(may_warn); | |
1455 | mutex_unlock(&hotkey_mutex); | |
1456 | } | |
1457 | ||
1bc6b9cd HMH |
1458 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1459 | ||
1460 | static void hotkey_poll_setup_safe(int __unused) | |
1461 | { | |
1462 | } | |
1463 | ||
1464 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1465 | ||
01e88f25 HMH |
1466 | static int hotkey_inputdev_open(struct input_dev *dev) |
1467 | { | |
1468 | switch (tpacpi_lifecycle) { | |
1469 | case TPACPI_LIFE_INIT: | |
1470 | /* | |
1471 | * hotkey_init will call hotkey_poll_setup_safe | |
1472 | * at the appropriate moment | |
1473 | */ | |
1474 | return 0; | |
1475 | case TPACPI_LIFE_EXITING: | |
1476 | return -EBUSY; | |
1477 | case TPACPI_LIFE_RUNNING: | |
1478 | hotkey_poll_setup_safe(0); | |
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1483 | BUG(); | |
1484 | return -EBUSY; | |
1485 | } | |
1486 | ||
1487 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1488 | { | |
1489 | /* disable hotkey polling when possible */ | |
1490 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1491 | hotkey_poll_setup_safe(0); | |
1492 | } | |
01e88f25 | 1493 | |
a0416420 HMH |
1494 | /* sysfs hotkey enable ------------------------------------------------- */ |
1495 | static ssize_t hotkey_enable_show(struct device *dev, | |
1496 | struct device_attribute *attr, | |
1497 | char *buf) | |
1498 | { | |
ae92bd17 | 1499 | int res, status; |
a0416420 | 1500 | |
b2c985e7 | 1501 | res = hotkey_status_get(&status); |
a0416420 HMH |
1502 | if (res) |
1503 | return res; | |
1504 | ||
1505 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1506 | } | |
1507 | ||
1508 | static ssize_t hotkey_enable_store(struct device *dev, | |
1509 | struct device_attribute *attr, | |
1510 | const char *buf, size_t count) | |
1511 | { | |
1512 | unsigned long t; | |
b2c985e7 | 1513 | int res; |
a0416420 HMH |
1514 | |
1515 | if (parse_strtoul(buf, 1, &t)) | |
1516 | return -EINVAL; | |
1517 | ||
b2c985e7 | 1518 | res = hotkey_status_set(t); |
a0416420 HMH |
1519 | |
1520 | return (res) ? res : count; | |
1521 | } | |
1522 | ||
1523 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1524 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1525 | hotkey_enable_show, hotkey_enable_store); |
1526 | ||
1527 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1528 | static ssize_t hotkey_mask_show(struct device *dev, | |
1529 | struct device_attribute *attr, | |
1530 | char *buf) | |
1531 | { | |
b2c985e7 | 1532 | int res; |
a0416420 | 1533 | |
b2c985e7 HMH |
1534 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1535 | return -ERESTARTSYS; | |
1536 | res = hotkey_mask_get(); | |
1537 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1538 | |
b2c985e7 HMH |
1539 | return (res)? |
1540 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1541 | } |
1542 | ||
1543 | static ssize_t hotkey_mask_store(struct device *dev, | |
1544 | struct device_attribute *attr, | |
1545 | const char *buf, size_t count) | |
1546 | { | |
1547 | unsigned long t; | |
b2c985e7 | 1548 | int res; |
a0416420 | 1549 | |
ae92bd17 | 1550 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1551 | return -EINVAL; |
1552 | ||
b2c985e7 HMH |
1553 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1554 | return -ERESTARTSYS; | |
1555 | ||
1556 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1557 | |
1558 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1559 | hotkey_poll_setup(1); | |
1560 | #endif | |
1561 | ||
b2c985e7 | 1562 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1563 | |
1564 | return (res) ? res : count; | |
1565 | } | |
1566 | ||
1567 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1568 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1569 | hotkey_mask_show, hotkey_mask_store); |
1570 | ||
1571 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1572 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1573 | struct device_attribute *attr, | |
1574 | char *buf) | |
1575 | { | |
1576 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1577 | } | |
1578 | ||
1579 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1580 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1581 | |
1582 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1583 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1584 | struct device_attribute *attr, | |
1585 | char *buf) | |
1586 | { | |
ae92bd17 | 1587 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1588 | } |
1589 | ||
1590 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1591 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1592 | |
9b010de5 HMH |
1593 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1594 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1595 | struct device_attribute *attr, | |
1596 | char *buf) | |
1597 | { | |
01e88f25 HMH |
1598 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1599 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1600 | } |
1601 | ||
1602 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1603 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1604 | ||
1605 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1606 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1607 | struct device_attribute *attr, | |
1608 | char *buf) | |
1609 | { | |
1610 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1611 | (hotkey_all_mask | hotkey_source_mask) |
1612 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1613 | } |
1614 | ||
1615 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1616 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1617 | hotkey_recommended_mask_show, NULL); | |
1618 | ||
01e88f25 HMH |
1619 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1620 | ||
1621 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1622 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1623 | struct device_attribute *attr, | |
1624 | char *buf) | |
1625 | { | |
1626 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1627 | } | |
1628 | ||
1629 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1630 | struct device_attribute *attr, | |
1631 | const char *buf, size_t count) | |
1632 | { | |
1633 | unsigned long t; | |
1634 | ||
1635 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1636 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1637 | return -EINVAL; | |
1638 | ||
1639 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1640 | return -ERESTARTSYS; | |
1641 | ||
1642 | HOTKEY_CONFIG_CRITICAL_START | |
1643 | hotkey_source_mask = t; | |
1644 | HOTKEY_CONFIG_CRITICAL_END | |
1645 | ||
1646 | hotkey_poll_setup(1); | |
1647 | ||
1648 | mutex_unlock(&hotkey_mutex); | |
1649 | ||
1650 | return count; | |
1651 | } | |
1652 | ||
1653 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1654 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1655 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1656 | ||
1657 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1658 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1659 | struct device_attribute *attr, | |
1660 | char *buf) | |
1661 | { | |
1662 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1663 | } | |
1664 | ||
1665 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1666 | struct device_attribute *attr, | |
1667 | const char *buf, size_t count) | |
1668 | { | |
1669 | unsigned long t; | |
1670 | ||
1671 | if (parse_strtoul(buf, 25, &t)) | |
1672 | return -EINVAL; | |
1673 | ||
1674 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1675 | return -ERESTARTSYS; | |
1676 | ||
1677 | hotkey_poll_freq = t; | |
1678 | ||
1679 | hotkey_poll_setup(1); | |
1680 | mutex_unlock(&hotkey_mutex); | |
1681 | ||
1682 | return count; | |
1683 | } | |
1684 | ||
1685 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1686 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1687 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1688 | ||
1689 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1690 | ||
50ebec09 | 1691 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1692 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1693 | struct device_attribute *attr, | |
1694 | char *buf) | |
1695 | { | |
1696 | int res, s; | |
1697 | res = hotkey_get_wlsw(&s); | |
1698 | if (res < 0) | |
1699 | return res; | |
1700 | ||
1701 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1702 | } | |
1703 | ||
1704 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1705 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1706 | ||
50ebec09 HMH |
1707 | static void hotkey_radio_sw_notify_change(void) |
1708 | { | |
1709 | if (tp_features.hotkey_wlsw) | |
1710 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1711 | "hotkey_radio_sw"); | |
1712 | } | |
1713 | ||
6c231bd5 HMH |
1714 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
1715 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
1716 | struct device_attribute *attr, | |
1717 | char *buf) | |
1718 | { | |
1719 | int res, s; | |
1720 | res = hotkey_get_tablet_mode(&s); | |
1721 | if (res < 0) | |
1722 | return res; | |
1723 | ||
1724 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1725 | } | |
1726 | ||
1727 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
1728 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
1729 | ||
1730 | static void hotkey_tablet_mode_notify_change(void) | |
1731 | { | |
1732 | if (tp_features.hotkey_tablet) | |
1733 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1734 | "hotkey_tablet_mode"); | |
1735 | } | |
1736 | ||
ff80f137 HMH |
1737 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1738 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1739 | struct device_attribute *attr, | |
1740 | char *buf) | |
1741 | { | |
1742 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1743 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1744 | } | |
1745 | ||
1746 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1747 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1748 | ||
50ebec09 | 1749 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
1750 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
1751 | struct device_attribute *attr, | |
1752 | char *buf) | |
1753 | { | |
1754 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
1755 | } | |
1756 | ||
1757 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
1758 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
1759 | ||
1d5a2b54 | 1760 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
1761 | { |
1762 | if (tp_features.hotkey_mask) | |
1763 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1764 | "wakeup_reason"); | |
1765 | } | |
1766 | ||
1767 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
1768 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
1769 | struct device_attribute *attr, | |
1770 | char *buf) | |
1771 | { | |
1772 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
1773 | } | |
1774 | ||
1775 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
1776 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
1777 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
1778 | ||
1d5a2b54 | 1779 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
1780 | { |
1781 | if (tp_features.hotkey_mask) | |
1782 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1783 | "wakeup_hotunplug_complete"); | |
1784 | } | |
1785 | ||
a0416420 HMH |
1786 | /* --------------------------------------------------------------------- */ |
1787 | ||
ff80f137 HMH |
1788 | static struct attribute *hotkey_attributes[] __initdata = { |
1789 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1790 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1791 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1792 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1793 | &dev_attr_hotkey_mask.attr, | |
1794 | &dev_attr_hotkey_all_mask.attr, | |
1795 | &dev_attr_hotkey_recommended_mask.attr, | |
1796 | &dev_attr_hotkey_source_mask.attr, | |
1797 | &dev_attr_hotkey_poll_freq.attr, | |
1798 | #endif | |
ff80f137 HMH |
1799 | }; |
1800 | ||
1801 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1802 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1803 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1804 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1805 | &dev_attr_hotkey_all_mask.attr, |
1806 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1807 | #endif |
a713b4d7 HMH |
1808 | &dev_attr_hotkey_wakeup_reason.attr, |
1809 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
1810 | }; |
1811 | ||
a5763f22 | 1812 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1813 | { |
0f089147 HMH |
1814 | /* Requirements for changing the default keymaps: |
1815 | * | |
1816 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1817 | * good reasons. Do not change them unless you have deep | |
1818 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1819 | * the various ThinkPad models. The driver behaves | |
1820 | * differently for KEY_RESERVED: such keys have their | |
1821 | * hot key mask *unset* in mask_recommended, and also | |
1822 | * in the initial hot key mask programmed into the | |
1823 | * firmware at driver load time, which means the firm- | |
1824 | * ware may react very differently if you change them to | |
1825 | * something else; | |
1826 | * | |
1827 | * 2. You must be subscribed to the linux-thinkpad and | |
1828 | * ibm-acpi-devel mailing lists, and you should read the | |
1829 | * list archives since 2007 if you want to change the | |
1830 | * keymaps. This requirement exists so that you will | |
1831 | * know the past history of problems with the thinkpad- | |
1832 | * acpi driver keymaps, and also that you will be | |
1833 | * listening to any bug reports; | |
1834 | * | |
1835 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1836 | * for merging, *ever*. Send them to the linux-acpi | |
1837 | * mailinglist for comments. Merging is to be done only | |
1838 | * through acpi-test and the ACPI maintainer. | |
1839 | * | |
1840 | * If the above is too much to ask, don't change the keymap. | |
1841 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1842 | */ | |
edf0e0e5 HMH |
1843 | static u16 ibm_keycode_map[] __initdata = { |
1844 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1845 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1846 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1847 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1848 | |
1849 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1850 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1851 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1852 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1853 | |
1854 | /* brightness: firmware always reacts to them, unless | |
1855 | * X.org did some tricks in the radeon BIOS scratch | |
1856 | * registers of *some* models */ | |
e927c08d | 1857 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1858 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1859 | |
1860 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1861 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1862 | |
edf0e0e5 HMH |
1863 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1864 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1865 | |
1866 | /* Volume: firmware always react to it and reprograms | |
1867 | * the built-in *extra* mixer. Never map it to control | |
1868 | * another mixer by default. */ | |
e927c08d HMH |
1869 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1870 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1871 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1872 | |
edf0e0e5 | 1873 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1874 | |
edf0e0e5 HMH |
1875 | /* (assignments unknown, please report if found) */ |
1876 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1877 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1878 | }; | |
1879 | static u16 lenovo_keycode_map[] __initdata = { | |
1880 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1881 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1882 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1883 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1884 | |
1885 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1886 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1887 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1888 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1889 | |
56a185b4 | 1890 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1891 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1892 | |
edf0e0e5 | 1893 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1894 | |
edf0e0e5 HMH |
1895 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1896 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1897 | |
1898 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1899 | * react to it and reprograms the built-in *extra* mixer. | |
1900 | * Never map it to control another mixer by default. | |
1901 | * | |
1902 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1903 | * these over the regular keyboard, so these are no-ops, | |
1904 | * but there are still weird bugs re. MUTE, so do not | |
1905 | * change unless you get test reports from all Lenovo | |
1906 | * models. May cause the BIOS to interfere with the | |
1907 | * HDA mixer. | |
1908 | */ | |
e927c08d HMH |
1909 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1910 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1911 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1912 | |
edf0e0e5 | 1913 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1914 | |
edf0e0e5 HMH |
1915 | /* (assignments unknown, please report if found) */ |
1916 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1917 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1918 | }; | |
1919 | ||
1920 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1921 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1922 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1923 | ||
6a38abbf | 1924 | int res, i; |
74941a69 | 1925 | int status; |
1b6521dc | 1926 | int hkeyv; |
b86c4722 | 1927 | |
fe08bc4b HMH |
1928 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1929 | ||
6a38abbf | 1930 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
1931 | BUG_ON(tpacpi_inputdev->open != NULL || |
1932 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 1933 | |
e0c7dfe7 | 1934 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1935 | mutex_init(&hotkey_mutex); |
5fba344c | 1936 | |
01e88f25 HMH |
1937 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1938 | mutex_init(&hotkey_thread_mutex); | |
1939 | mutex_init(&hotkey_thread_data_mutex); | |
1940 | #endif | |
1941 | ||
56b6aeb0 | 1942 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1943 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1944 | |
fe08bc4b | 1945 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1946 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1947 | |
d8fd94d9 | 1948 | if (tp_features.hotkey) { |
6c231bd5 | 1949 | hotkey_dev_attributes = create_attr_set(13, NULL); |
a0416420 HMH |
1950 | if (!hotkey_dev_attributes) |
1951 | return -ENOMEM; | |
ff80f137 HMH |
1952 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1953 | hotkey_attributes, | |
1954 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1955 | if (res) |
1956 | return res; | |
1957 | ||
56b6aeb0 | 1958 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1959 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1960 | for HKEY interface version 0x100 */ | |
1961 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1962 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 1963 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 1964 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
1965 | printk(TPACPI_ERR "please report this to %s\n", |
1966 | TPACPI_MAIL); | |
1b6521dc HMH |
1967 | } else { |
1968 | /* | |
1969 | * MHKV 0x100 in A31, R40, R40e, | |
1970 | * T4x, X31, and later | |
01e88f25 | 1971 | */ |
1b6521dc HMH |
1972 | tp_features.hotkey_mask = 1; |
1973 | } | |
1974 | } | |
56b6aeb0 | 1975 | |
fe08bc4b | 1976 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1977 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1978 | |
9b010de5 | 1979 | if (tp_features.hotkey_mask) { |
9b010de5 | 1980 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 1981 | "MHKA", "qd")) { |
e0c7dfe7 | 1982 | printk(TPACPI_ERR |
1b6521dc HMH |
1983 | "missing MHKA handler, " |
1984 | "please report this to %s\n", | |
e0c7dfe7 | 1985 | TPACPI_MAIL); |
35ff8b9f HMH |
1986 | /* FN+F12, FN+F4, FN+F3 */ |
1987 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 1988 | } |
9b010de5 HMH |
1989 | } |
1990 | ||
01e88f25 HMH |
1991 | /* hotkey_source_mask *must* be zero for |
1992 | * the first hotkey_mask_get */ | |
b2c985e7 | 1993 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1994 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1995 | res = hotkey_mask_get(); |
1996 | hotkey_orig_mask = hotkey_mask; | |
1997 | if (!res) { | |
1998 | res = add_many_to_attr_set( | |
1999 | hotkey_dev_attributes, | |
2000 | hotkey_mask_attributes, | |
2001 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2002 | } | |
a0416420 | 2003 | } |
74941a69 | 2004 | |
01e88f25 HMH |
2005 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2006 | if (tp_features.hotkey_mask) { | |
2007 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2008 | & ~hotkey_all_mask; | |
2009 | } else { | |
2010 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2011 | } | |
2012 | ||
2013 | vdbg_printk(TPACPI_DBG_INIT, | |
2014 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2015 | hotkey_source_mask, hotkey_poll_freq); | |
2016 | #endif | |
2017 | ||
74941a69 HMH |
2018 | /* Not all thinkpads have a hardware radio switch */ |
2019 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2020 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 2021 | printk(TPACPI_INFO |
74941a69 HMH |
2022 | "radio switch found; radios are %s\n", |
2023 | enabled(status, 0)); | |
2024 | res = add_to_attr_set(hotkey_dev_attributes, | |
2025 | &dev_attr_hotkey_radio_sw.attr); | |
2026 | } | |
2027 | ||
6c231bd5 HMH |
2028 | /* For X41t, X60t, X61t Tablets... */ |
2029 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2030 | tp_features.hotkey_tablet = 1; | |
2031 | printk(TPACPI_INFO | |
2032 | "possible tablet mode switch found; " | |
2033 | "ThinkPad in %s mode\n", | |
2034 | (status & TP_HOTKEY_TABLET_MASK)? | |
2035 | "tablet" : "laptop"); | |
2036 | res = add_to_attr_set(hotkey_dev_attributes, | |
2037 | &dev_attr_hotkey_tablet_mode.attr); | |
2038 | } | |
2039 | ||
a0416420 HMH |
2040 | if (!res) |
2041 | res = register_attr_set_with_sysfs( | |
2042 | hotkey_dev_attributes, | |
2043 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2044 | if (res) |
2045 | return res; | |
6a38abbf | 2046 | |
edf0e0e5 HMH |
2047 | /* Set up key map */ |
2048 | ||
2049 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2050 | GFP_KERNEL); | |
2051 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
2052 | printk(TPACPI_ERR |
2053 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
2054 | return -ENOMEM; |
2055 | } | |
2056 | ||
2057 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2058 | dbg_printk(TPACPI_DBG_INIT, | |
2059 | "using Lenovo default hot key map\n"); | |
2060 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2061 | TPACPI_HOTKEY_MAP_SIZE); | |
2062 | } else { | |
2063 | dbg_printk(TPACPI_DBG_INIT, | |
2064 | "using IBM default hot key map\n"); | |
2065 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2066 | TPACPI_HOTKEY_MAP_SIZE); | |
2067 | } | |
2068 | ||
6a38abbf HMH |
2069 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2070 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2071 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2072 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2073 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2074 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2075 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2076 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2077 | set_bit(hotkey_keycode_map[i], | |
2078 | tpacpi_inputdev->keybit); | |
2079 | } else { | |
2080 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2081 | hotkey_reserved_mask |= 1 << i; | |
2082 | } | |
2083 | } | |
2084 | ||
5c29d58f HMH |
2085 | if (tp_features.hotkey_wlsw) { |
2086 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2087 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2088 | } | |
6c231bd5 | 2089 | if (tp_features.hotkey_tablet) { |
b3ec6f91 HMH |
2090 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
2091 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2092 | } | |
5c29d58f | 2093 | |
1a343760 HMH |
2094 | dbg_printk(TPACPI_DBG_INIT, |
2095 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2096 | res = hotkey_status_set(1); |
2097 | if (res) | |
2098 | return res; | |
01e88f25 HMH |
2099 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2100 | & ~hotkey_reserved_mask) | |
1a343760 | 2101 | | hotkey_orig_mask); |
01e88f25 | 2102 | if (res < 0 && res != -ENXIO) |
1a343760 | 2103 | return res; |
ff80f137 HMH |
2104 | |
2105 | dbg_printk(TPACPI_DBG_INIT, | |
2106 | "legacy hot key reporting over procfs %s\n", | |
2107 | (hotkey_report_mode < 2) ? | |
2108 | "enabled" : "disabled"); | |
01e88f25 | 2109 | |
01e88f25 HMH |
2110 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2111 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2112 | ||
2113 | hotkey_poll_setup_safe(1); | |
7526696a | 2114 | tpacpi_input_send_radiosw(); |
6c231bd5 | 2115 | tpacpi_input_send_tabletsw(); |
56b6aeb0 HMH |
2116 | } |
2117 | ||
d8fd94d9 | 2118 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2119 | } |
2120 | ||
2121 | static void hotkey_exit(void) | |
2122 | { | |
01e88f25 HMH |
2123 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2124 | hotkey_poll_stop_sync(); | |
2125 | #endif | |
2126 | ||
d8fd94d9 | 2127 | if (tp_features.hotkey) { |
35ff8b9f HMH |
2128 | dbg_printk(TPACPI_DBG_EXIT, |
2129 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
2130 | /* no short-circuit boolean operator below! */ |
2131 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2132 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
2133 | printk(TPACPI_ERR |
2134 | "failed to restore hot key mask " | |
2135 | "to BIOS defaults\n"); | |
5fba344c | 2136 | } |
a0416420 HMH |
2137 | |
2138 | if (hotkey_dev_attributes) { | |
2139 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2140 | hotkey_dev_attributes = NULL; | |
2141 | } | |
56b6aeb0 HMH |
2142 | } |
2143 | ||
2144 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2145 | { | |
6a38abbf | 2146 | u32 hkey; |
b7c8c200 | 2147 | unsigned int scancode; |
3eea123d | 2148 | int send_acpi_ev; |
3e5ce914 | 2149 | int ignore_acpi_ev; |
3b64b51d | 2150 | int unk_ev; |
3eea123d HMH |
2151 | |
2152 | if (event != 0x80) { | |
35ff8b9f HMH |
2153 | printk(TPACPI_ERR |
2154 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2155 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2156 | acpi_bus_generate_netlink_event( |
2157 | ibm->acpi->device->pnp.device_class, | |
2158 | ibm->acpi->device->dev.bus_id, | |
2159 | event, 0); | |
3eea123d HMH |
2160 | return; |
2161 | } | |
2162 | ||
2163 | while (1) { | |
2164 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2165 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2166 | return; |
2167 | } | |
2168 | ||
2169 | if (hkey == 0) { | |
2170 | /* queue empty */ | |
2171 | return; | |
2172 | } | |
2173 | ||
3b64b51d | 2174 | send_acpi_ev = 1; |
3e5ce914 | 2175 | ignore_acpi_ev = 0; |
3b64b51d | 2176 | unk_ev = 0; |
56b6aeb0 | 2177 | |
ff80f137 HMH |
2178 | switch (hkey >> 12) { |
2179 | case 1: | |
2180 | /* 0x1000-0x1FFF: key presses */ | |
2181 | scancode = hkey & 0xfff; | |
2182 | if (scancode > 0 && scancode < 0x21) { | |
2183 | scancode--; | |
01e88f25 HMH |
2184 | if (!(hotkey_source_mask & (1 << scancode))) { |
2185 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2186 | send_acpi_ev = 0; |
01e88f25 HMH |
2187 | } else { |
2188 | ignore_acpi_ev = 1; | |
2189 | } | |
ff80f137 | 2190 | } else { |
3b64b51d | 2191 | unk_ev = 1; |
ff80f137 HMH |
2192 | } |
2193 | break; | |
a713b4d7 HMH |
2194 | case 2: |
2195 | /* Wakeup reason */ | |
2196 | switch (hkey) { | |
2197 | case 0x2304: /* suspend, undock */ | |
2198 | case 0x2404: /* hibernation, undock */ | |
2199 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2200 | ignore_acpi_ev = 1; | |
2201 | break; | |
2202 | case 0x2305: /* suspend, bay eject */ | |
2203 | case 0x2405: /* hibernation, bay eject */ | |
2204 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2205 | ignore_acpi_ev = 1; | |
2206 | break; | |
2207 | default: | |
2208 | unk_ev = 1; | |
2209 | } | |
2210 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2211 | printk(TPACPI_INFO | |
2212 | "woke up due to a hot-unplug " | |
2213 | "request...\n"); | |
50ebec09 | 2214 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2215 | } |
2216 | break; | |
2217 | case 3: | |
2218 | /* bay-related wakeups */ | |
2219 | if (hkey == 0x3003) { | |
2220 | hotkey_autosleep_ack = 1; | |
2221 | printk(TPACPI_INFO | |
2222 | "bay ejected\n"); | |
50ebec09 | 2223 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2224 | } else { |
2225 | unk_ev = 1; | |
2226 | } | |
2227 | break; | |
2228 | case 4: | |
2229 | /* dock-related wakeups */ | |
2230 | if (hkey == 0x4003) { | |
2231 | hotkey_autosleep_ack = 1; | |
2232 | printk(TPACPI_INFO | |
2233 | "undocked\n"); | |
50ebec09 | 2234 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2235 | } else { |
2236 | unk_ev = 1; | |
2237 | } | |
2238 | break; | |
ff80f137 | 2239 | case 5: |
d1edb2b5 | 2240 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2241 | switch (hkey) { |
d1edb2b5 | 2242 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2243 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2244 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2245 | break; |
6c231bd5 HMH |
2246 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2247 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2248 | tpacpi_input_send_tabletsw(); | |
2249 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2250 | send_acpi_ev = 0; |
2251 | break; | |
3b64b51d HMH |
2252 | case 0x5001: |
2253 | case 0x5002: | |
2254 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2255 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2256 | break; |
2257 | default: | |
2258 | unk_ev = 1; | |
ff80f137 HMH |
2259 | } |
2260 | break; | |
2261 | case 7: | |
2262 | /* 0x7000-0x7FFF: misc */ | |
2263 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2264 | tpacpi_input_send_radiosw(); | |
50ebec09 | 2265 | hotkey_radio_sw_notify_change(); |
3b64b51d | 2266 | send_acpi_ev = 0; |
6a38abbf | 2267 | break; |
6a38abbf | 2268 | } |
ff80f137 HMH |
2269 | /* fallthrough to default */ |
2270 | default: | |
3b64b51d HMH |
2271 | unk_ev = 1; |
2272 | } | |
2273 | if (unk_ev) { | |
35ff8b9f HMH |
2274 | printk(TPACPI_NOTICE |
2275 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2276 | } |
ff80f137 | 2277 | |
3eea123d | 2278 | /* Legacy events */ |
35ff8b9f HMH |
2279 | if (!ignore_acpi_ev && |
2280 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2281 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2282 | event, hkey); | |
3e5ce914 | 2283 | } |
ff80f137 | 2284 | |
3eea123d | 2285 | /* netlink events */ |
3e5ce914 | 2286 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2287 | acpi_bus_generate_netlink_event( |
2288 | ibm->acpi->device->pnp.device_class, | |
2289 | ibm->acpi->device->dev.bus_id, | |
2290 | event, hkey); | |
3eea123d | 2291 | } |
56b6aeb0 HMH |
2292 | } |
2293 | } | |
2294 | ||
a713b4d7 HMH |
2295 | static void hotkey_suspend(pm_message_t state) |
2296 | { | |
2297 | /* Do these on suspend, we get the events on early resume! */ | |
2298 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2299 | hotkey_autosleep_ack = 0; | |
2300 | } | |
2301 | ||
5c29d58f HMH |
2302 | static void hotkey_resume(void) |
2303 | { | |
b2c985e7 | 2304 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2305 | printk(TPACPI_ERR |
2306 | "error while trying to read hot key mask " | |
2307 | "from firmware\n"); | |
5c29d58f | 2308 | tpacpi_input_send_radiosw(); |
50ebec09 | 2309 | hotkey_radio_sw_notify_change(); |
6c231bd5 | 2310 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2311 | hotkey_wakeup_reason_notify_change(); |
2312 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2313 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2314 | } |
2315 | ||
a0416420 | 2316 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2317 | static int hotkey_read(char *p) |
1da177e4 | 2318 | { |
ae92bd17 | 2319 | int res, status; |
1da177e4 LT |
2320 | int len = 0; |
2321 | ||
d8fd94d9 | 2322 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2323 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2324 | return len; | |
2325 | } | |
2326 | ||
fc589a3c HMH |
2327 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2328 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2329 | res = hotkey_status_get(&status); |
2330 | if (!res) | |
2331 | res = hotkey_mask_get(); | |
40ca9fdf | 2332 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2333 | if (res) |
2334 | return res; | |
1da177e4 LT |
2335 | |
2336 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2337 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2338 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2339 | len += sprintf(p + len, |
2340 | "commands:\tenable, disable, reset, <mask>\n"); | |
2341 | } else { | |
2342 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2343 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2344 | } | |
2345 | ||
2346 | return len; | |
2347 | } | |
2348 | ||
78f81cc4 | 2349 | static int hotkey_write(char *buf) |
1da177e4 | 2350 | { |
ae92bd17 HMH |
2351 | int res, status; |
2352 | u32 mask; | |
1da177e4 | 2353 | char *cmd; |
1da177e4 | 2354 | |
d8fd94d9 | 2355 | if (!tp_features.hotkey) |
1da177e4 LT |
2356 | return -ENODEV; |
2357 | ||
fc589a3c HMH |
2358 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2359 | return -ERESTARTSYS; | |
40ca9fdf | 2360 | |
b2c985e7 HMH |
2361 | status = -1; |
2362 | mask = hotkey_mask; | |
78f81cc4 | 2363 | |
40ca9fdf | 2364 | res = 0; |
1da177e4 LT |
2365 | while ((cmd = next_cmd(&buf))) { |
2366 | if (strlencmp(cmd, "enable") == 0) { | |
2367 | status = 1; | |
2368 | } else if (strlencmp(cmd, "disable") == 0) { | |
2369 | status = 0; | |
2370 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2371 | status = hotkey_orig_status; |
2372 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2373 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2374 | /* mask set */ | |
2375 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2376 | /* mask set */ | |
40ca9fdf HMH |
2377 | } else { |
2378 | res = -EINVAL; | |
2379 | goto errexit; | |
2380 | } | |
1da177e4 | 2381 | } |
b2c985e7 HMH |
2382 | if (status != -1) |
2383 | res = hotkey_status_set(status); | |
1da177e4 | 2384 | |
b2c985e7 HMH |
2385 | if (!res && mask != hotkey_mask) |
2386 | res = hotkey_mask_set(mask); | |
1da177e4 | 2387 | |
40ca9fdf HMH |
2388 | errexit: |
2389 | mutex_unlock(&hotkey_mutex); | |
2390 | return res; | |
78f81cc4 | 2391 | } |
1da177e4 | 2392 | |
1ba90e3a | 2393 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2394 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2395 | {"", 0}, |
2396 | }; | |
2397 | ||
8d376cd6 | 2398 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2399 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2400 | .notify = hotkey_notify, |
2401 | .handle = &hkey_handle, | |
2402 | .type = ACPI_DEVICE_NOTIFY, | |
2403 | }; | |
2404 | ||
a5763f22 HMH |
2405 | static struct ibm_struct hotkey_driver_data = { |
2406 | .name = "hotkey", | |
a5763f22 HMH |
2407 | .read = hotkey_read, |
2408 | .write = hotkey_write, | |
2409 | .exit = hotkey_exit, | |
5c29d58f | 2410 | .resume = hotkey_resume, |
a713b4d7 | 2411 | .suspend = hotkey_suspend, |
8d376cd6 | 2412 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2413 | }; |
2414 | ||
56b6aeb0 HMH |
2415 | /************************************************************************* |
2416 | * Bluetooth subdriver | |
2417 | */ | |
1da177e4 | 2418 | |
f74a27d4 HMH |
2419 | enum { |
2420 | /* ACPI GBDC/SBDC bits */ | |
2421 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2422 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2423 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2424 | }; | |
2425 | ||
2426 | static int bluetooth_get_radiosw(void); | |
2427 | static int bluetooth_set_radiosw(int radio_on); | |
2428 | ||
d3a6ade4 HMH |
2429 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2430 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2431 | struct device_attribute *attr, | |
2432 | char *buf) | |
2433 | { | |
2434 | int status; | |
2435 | ||
2436 | status = bluetooth_get_radiosw(); | |
2437 | if (status < 0) | |
2438 | return status; | |
2439 | ||
2440 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2441 | } | |
2442 | ||
2443 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2444 | struct device_attribute *attr, | |
2445 | const char *buf, size_t count) | |
2446 | { | |
2447 | unsigned long t; | |
2448 | int res; | |
2449 | ||
2450 | if (parse_strtoul(buf, 1, &t)) | |
2451 | return -EINVAL; | |
2452 | ||
2453 | res = bluetooth_set_radiosw(t); | |
2454 | ||
2455 | return (res) ? res : count; | |
2456 | } | |
2457 | ||
2458 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2459 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2460 | bluetooth_enable_show, bluetooth_enable_store); |
2461 | ||
2462 | /* --------------------------------------------------------------------- */ | |
2463 | ||
2464 | static struct attribute *bluetooth_attributes[] = { | |
2465 | &dev_attr_bluetooth_enable.attr, | |
2466 | NULL | |
2467 | }; | |
2468 | ||
2469 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2470 | .attrs = bluetooth_attributes, |
2471 | }; | |
2472 | ||
a5763f22 | 2473 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2474 | { |
d3a6ade4 | 2475 | int res; |
d6fdd1e9 HMH |
2476 | int status = 0; |
2477 | ||
fe08bc4b HMH |
2478 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2479 | ||
e0c7dfe7 | 2480 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2481 | |
78f81cc4 BD |
2482 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2483 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2484 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2485 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2486 | ||
2487 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2488 | str_supported(tp_features.bluetooth), | |
2489 | status); | |
2490 | ||
d3a6ade4 HMH |
2491 | if (tp_features.bluetooth) { |
2492 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2493 | /* no bluetooth hardware present in system */ | |
2494 | tp_features.bluetooth = 0; | |
2495 | dbg_printk(TPACPI_DBG_INIT, | |
2496 | "bluetooth hardware not installed\n"); | |
2497 | } else { | |
2498 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2499 | &bluetooth_attr_group); | |
2500 | if (res) | |
2501 | return res; | |
2502 | } | |
d6fdd1e9 | 2503 | } |
fe08bc4b | 2504 | |
d8fd94d9 | 2505 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2506 | } |
2507 | ||
d3a6ade4 HMH |
2508 | static void bluetooth_exit(void) |
2509 | { | |
2510 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2511 | &bluetooth_attr_group); | |
2512 | } | |
2513 | ||
d6fdd1e9 | 2514 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2515 | { |
2516 | int status; | |
2517 | ||
d6fdd1e9 HMH |
2518 | if (!tp_features.bluetooth) |
2519 | return -ENODEV; | |
1da177e4 | 2520 | |
d6fdd1e9 HMH |
2521 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2522 | return -EIO; | |
2523 | ||
2524 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2525 | } | |
2526 | ||
2527 | static int bluetooth_set_radiosw(int radio_on) | |
2528 | { | |
2529 | int status; | |
2530 | ||
2531 | if (!tp_features.bluetooth) | |
2532 | return -ENODEV; | |
2533 | ||
2534 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2535 | return -EIO; | |
2536 | if (radio_on) | |
2537 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2538 | else | |
2539 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2540 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2541 | return -EIO; | |
2542 | ||
2543 | return 0; | |
1da177e4 LT |
2544 | } |
2545 | ||
d3a6ade4 | 2546 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2547 | static int bluetooth_read(char *p) |
1da177e4 LT |
2548 | { |
2549 | int len = 0; | |
d6fdd1e9 | 2550 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2551 | |
d8fd94d9 | 2552 | if (!tp_features.bluetooth) |
1da177e4 | 2553 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2554 | else { |
d6fdd1e9 HMH |
2555 | len += sprintf(p + len, "status:\t\t%s\n", |
2556 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2557 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2558 | } | |
2559 | ||
2560 | return len; | |
2561 | } | |
2562 | ||
78f81cc4 | 2563 | static int bluetooth_write(char *buf) |
1da177e4 | 2564 | { |
1da177e4 | 2565 | char *cmd; |
1da177e4 | 2566 | |
d8fd94d9 | 2567 | if (!tp_features.bluetooth) |
78f81cc4 | 2568 | return -ENODEV; |
1da177e4 LT |
2569 | |
2570 | while ((cmd = next_cmd(&buf))) { | |
2571 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2572 | bluetooth_set_radiosw(1); |
1da177e4 | 2573 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2574 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2575 | } else |
2576 | return -EINVAL; | |
1da177e4 LT |
2577 | } |
2578 | ||
1da177e4 LT |
2579 | return 0; |
2580 | } | |
2581 | ||
a5763f22 HMH |
2582 | static struct ibm_struct bluetooth_driver_data = { |
2583 | .name = "bluetooth", | |
2584 | .read = bluetooth_read, | |
2585 | .write = bluetooth_write, | |
d3a6ade4 | 2586 | .exit = bluetooth_exit, |
a5763f22 HMH |
2587 | }; |
2588 | ||
56b6aeb0 HMH |
2589 | /************************************************************************* |
2590 | * Wan subdriver | |
2591 | */ | |
2592 | ||
f74a27d4 HMH |
2593 | enum { |
2594 | /* ACPI GWAN/SWAN bits */ | |
2595 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2596 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2597 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2598 | }; | |
2599 | ||
2600 | static int wan_get_radiosw(void); | |
2601 | static int wan_set_radiosw(int radio_on); | |
2602 | ||
d3a6ade4 HMH |
2603 | /* sysfs wan enable ---------------------------------------------------- */ |
2604 | static ssize_t wan_enable_show(struct device *dev, | |
2605 | struct device_attribute *attr, | |
2606 | char *buf) | |
2607 | { | |
2608 | int status; | |
2609 | ||
2610 | status = wan_get_radiosw(); | |
2611 | if (status < 0) | |
2612 | return status; | |
2613 | ||
2614 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2615 | } | |
2616 | ||
2617 | static ssize_t wan_enable_store(struct device *dev, | |
2618 | struct device_attribute *attr, | |
2619 | const char *buf, size_t count) | |
2620 | { | |
2621 | unsigned long t; | |
2622 | int res; | |
2623 | ||
2624 | if (parse_strtoul(buf, 1, &t)) | |
2625 | return -EINVAL; | |
2626 | ||
2627 | res = wan_set_radiosw(t); | |
2628 | ||
2629 | return (res) ? res : count; | |
2630 | } | |
2631 | ||
2632 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2633 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2634 | wan_enable_show, wan_enable_store); |
2635 | ||
2636 | /* --------------------------------------------------------------------- */ | |
2637 | ||
2638 | static struct attribute *wan_attributes[] = { | |
2639 | &dev_attr_wan_enable.attr, | |
2640 | NULL | |
2641 | }; | |
2642 | ||
2643 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2644 | .attrs = wan_attributes, |
2645 | }; | |
2646 | ||
a5763f22 | 2647 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2648 | { |
d3a6ade4 | 2649 | int res; |
d6fdd1e9 HMH |
2650 | int status = 0; |
2651 | ||
fe08bc4b HMH |
2652 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2653 | ||
e0c7dfe7 | 2654 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2655 | |
d8fd94d9 | 2656 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2657 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2658 | ||
2659 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2660 | str_supported(tp_features.wan), | |
2661 | status); | |
2662 | ||
d3a6ade4 HMH |
2663 | if (tp_features.wan) { |
2664 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2665 | /* no wan hardware present in system */ | |
2666 | tp_features.wan = 0; | |
2667 | dbg_printk(TPACPI_DBG_INIT, | |
2668 | "wan hardware not installed\n"); | |
2669 | } else { | |
2670 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2671 | &wan_attr_group); | |
2672 | if (res) | |
2673 | return res; | |
2674 | } | |
d6fdd1e9 | 2675 | } |
fe08bc4b | 2676 | |
d8fd94d9 | 2677 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2678 | } |
2679 | ||
d3a6ade4 HMH |
2680 | static void wan_exit(void) |
2681 | { | |
2682 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2683 | &wan_attr_group); | |
2684 | } | |
2685 | ||
d6fdd1e9 | 2686 | static int wan_get_radiosw(void) |
42adb53c JF |
2687 | { |
2688 | int status; | |
2689 | ||
d6fdd1e9 HMH |
2690 | if (!tp_features.wan) |
2691 | return -ENODEV; | |
42adb53c | 2692 | |
d6fdd1e9 HMH |
2693 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2694 | return -EIO; | |
2695 | ||
2696 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2697 | } | |
2698 | ||
2699 | static int wan_set_radiosw(int radio_on) | |
2700 | { | |
2701 | int status; | |
2702 | ||
2703 | if (!tp_features.wan) | |
2704 | return -ENODEV; | |
2705 | ||
2706 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2707 | return -EIO; | |
2708 | if (radio_on) | |
2709 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2710 | else | |
2711 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2712 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2713 | return -EIO; | |
2714 | ||
2715 | return 0; | |
42adb53c JF |
2716 | } |
2717 | ||
d3a6ade4 | 2718 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2719 | static int wan_read(char *p) |
2720 | { | |
2721 | int len = 0; | |
d6fdd1e9 | 2722 | int status = wan_get_radiosw(); |
42adb53c | 2723 | |
d8fd94d9 | 2724 | if (!tp_features.wan) |
42adb53c | 2725 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2726 | else { |
d6fdd1e9 HMH |
2727 | len += sprintf(p + len, "status:\t\t%s\n", |
2728 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2729 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2730 | } | |
2731 | ||
2732 | return len; | |
2733 | } | |
2734 | ||
2735 | static int wan_write(char *buf) | |
2736 | { | |
42adb53c | 2737 | char *cmd; |
42adb53c | 2738 | |
d8fd94d9 | 2739 | if (!tp_features.wan) |
42adb53c JF |
2740 | return -ENODEV; |
2741 | ||
2742 | while ((cmd = next_cmd(&buf))) { | |
2743 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2744 | wan_set_radiosw(1); |
42adb53c | 2745 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2746 | wan_set_radiosw(0); |
42adb53c JF |
2747 | } else |
2748 | return -EINVAL; | |
42adb53c JF |
2749 | } |
2750 | ||
42adb53c JF |
2751 | return 0; |
2752 | } | |
2753 | ||
a5763f22 HMH |
2754 | static struct ibm_struct wan_driver_data = { |
2755 | .name = "wan", | |
2756 | .read = wan_read, | |
2757 | .write = wan_write, | |
d3a6ade4 | 2758 | .exit = wan_exit, |
92641177 | 2759 | .flags.experimental = 1, |
a5763f22 HMH |
2760 | }; |
2761 | ||
56b6aeb0 HMH |
2762 | /************************************************************************* |
2763 | * Video subdriver | |
2764 | */ | |
2765 | ||
d7c1d17d HMH |
2766 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
2767 | ||
f74a27d4 HMH |
2768 | enum video_access_mode { |
2769 | TPACPI_VIDEO_NONE = 0, | |
2770 | TPACPI_VIDEO_570, /* 570 */ | |
2771 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2772 | TPACPI_VIDEO_NEW, /* all others */ | |
2773 | }; | |
2774 | ||
2775 | enum { /* video status flags, based on VIDEO_570 */ | |
2776 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2777 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2778 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2779 | }; | |
2780 | ||
2781 | enum { /* TPACPI_VIDEO_570 constants */ | |
2782 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2783 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2784 | * video_status_flags */ | |
2785 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2786 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2787 | }; | |
2788 | ||
9a8e1738 HMH |
2789 | static enum video_access_mode video_supported; |
2790 | static int video_orig_autosw; | |
78f81cc4 | 2791 | |
f74a27d4 HMH |
2792 | static int video_autosw_get(void); |
2793 | static int video_autosw_set(int enable); | |
2794 | ||
e0c7dfe7 | 2795 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2796 | |
a5763f22 | 2797 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2798 | { |
78f81cc4 BD |
2799 | int ivga; |
2800 | ||
fe08bc4b HMH |
2801 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2802 | ||
e0c7dfe7 HMH |
2803 | TPACPI_ACPIHANDLE_INIT(vid); |
2804 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2805 | |
78f81cc4 BD |
2806 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2807 | /* G41, assume IVGA doesn't change */ | |
2808 | vid_handle = vid2_handle; | |
2809 | ||
2810 | if (!vid_handle) | |
2811 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2812 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2813 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2814 | /* 570 */ | |
efa27145 | 2815 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2816 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2817 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2818 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2819 | else |
2820 | /* all others */ | |
efa27145 | 2821 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2822 | |
fe08bc4b HMH |
2823 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2824 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2825 | video_supported); | |
2826 | ||
5fba344c | 2827 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2828 | } |
2829 | ||
56b6aeb0 HMH |
2830 | static void video_exit(void) |
2831 | { | |
83f34724 HMH |
2832 | dbg_printk(TPACPI_DBG_EXIT, |
2833 | "restoring original video autoswitch mode\n"); | |
2834 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2835 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2836 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2837 | } |
2838 | ||
83f34724 | 2839 | static int video_outputsw_get(void) |
1da177e4 LT |
2840 | { |
2841 | int status = 0; | |
2842 | int i; | |
2843 | ||
83f34724 HMH |
2844 | switch (video_supported) { |
2845 | case TPACPI_VIDEO_570: | |
2846 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2847 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2848 | return -EIO; | |
2849 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2850 | break; | |
2851 | case TPACPI_VIDEO_770: | |
2852 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2853 | return -EIO; | |
2854 | if (i) | |
2855 | status |= TP_ACPI_VIDEO_S_LCD; | |
2856 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2857 | return -EIO; | |
2858 | if (i) | |
2859 | status |= TP_ACPI_VIDEO_S_CRT; | |
2860 | break; | |
2861 | case TPACPI_VIDEO_NEW: | |
2862 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2863 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2864 | return -EIO; | |
2865 | if (i) | |
2866 | status |= TP_ACPI_VIDEO_S_CRT; | |
2867 | ||
2868 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2869 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2870 | return -EIO; | |
2871 | if (i) | |
2872 | status |= TP_ACPI_VIDEO_S_LCD; | |
2873 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2874 | return -EIO; | |
2875 | if (i) | |
2876 | status |= TP_ACPI_VIDEO_S_DVI; | |
2877 | break; | |
2878 | default: | |
2879 | return -ENOSYS; | |
78f81cc4 BD |
2880 | } |
2881 | ||
2882 | return status; | |
2883 | } | |
1da177e4 | 2884 | |
83f34724 | 2885 | static int video_outputsw_set(int status) |
78f81cc4 | 2886 | { |
83f34724 HMH |
2887 | int autosw; |
2888 | int res = 0; | |
2889 | ||
2890 | switch (video_supported) { | |
2891 | case TPACPI_VIDEO_570: | |
2892 | res = acpi_evalf(NULL, NULL, | |
2893 | "\\_SB.PHS2", "vdd", | |
2894 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2895 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
2896 | break; | |
2897 | case TPACPI_VIDEO_770: | |
2898 | autosw = video_autosw_get(); | |
2899 | if (autosw < 0) | |
2900 | return autosw; | |
1da177e4 | 2901 | |
83f34724 HMH |
2902 | res = video_autosw_set(1); |
2903 | if (res) | |
2904 | return res; | |
2905 | res = acpi_evalf(vid_handle, NULL, | |
2906 | "ASWT", "vdd", status * 0x100, 0); | |
2907 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
2908 | printk(TPACPI_ERR |
2909 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
2910 | return -EIO; |
2911 | } | |
2912 | break; | |
2913 | case TPACPI_VIDEO_NEW: | |
2914 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 2915 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
2916 | break; |
2917 | default: | |
2918 | return -ENOSYS; | |
2919 | } | |
1da177e4 | 2920 | |
83f34724 | 2921 | return (res)? 0 : -EIO; |
1da177e4 LT |
2922 | } |
2923 | ||
83f34724 | 2924 | static int video_autosw_get(void) |
78f81cc4 | 2925 | { |
83f34724 | 2926 | int autosw = 0; |
78f81cc4 | 2927 | |
83f34724 HMH |
2928 | switch (video_supported) { |
2929 | case TPACPI_VIDEO_570: | |
2930 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
2931 | return -EIO; | |
2932 | break; | |
2933 | case TPACPI_VIDEO_770: | |
2934 | case TPACPI_VIDEO_NEW: | |
2935 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2936 | return -EIO; | |
2937 | break; | |
2938 | default: | |
2939 | return -ENOSYS; | |
2940 | } | |
78f81cc4 | 2941 | |
83f34724 | 2942 | return autosw & 1; |
78f81cc4 BD |
2943 | } |
2944 | ||
83f34724 | 2945 | static int video_autosw_set(int enable) |
78f81cc4 | 2946 | { |
83f34724 HMH |
2947 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2948 | return -EIO; | |
2949 | return 0; | |
78f81cc4 BD |
2950 | } |
2951 | ||
83f34724 | 2952 | static int video_outputsw_cycle(void) |
78f81cc4 | 2953 | { |
83f34724 HMH |
2954 | int autosw = video_autosw_get(); |
2955 | int res; | |
78f81cc4 | 2956 | |
83f34724 HMH |
2957 | if (autosw < 0) |
2958 | return autosw; | |
78f81cc4 | 2959 | |
83f34724 HMH |
2960 | switch (video_supported) { |
2961 | case TPACPI_VIDEO_570: | |
2962 | res = video_autosw_set(1); | |
2963 | if (res) | |
2964 | return res; | |
2965 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2966 | break; | |
2967 | case TPACPI_VIDEO_770: | |
2968 | case TPACPI_VIDEO_NEW: | |
2969 | res = video_autosw_set(1); | |
2970 | if (res) | |
2971 | return res; | |
2972 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2973 | break; | |
2974 | default: | |
2975 | return -ENOSYS; | |
2976 | } | |
2977 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
2978 | printk(TPACPI_ERR |
2979 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 2980 | return -EIO; |
78f81cc4 BD |
2981 | } |
2982 | ||
83f34724 HMH |
2983 | return (res)? 0 : -EIO; |
2984 | } | |
2985 | ||
2986 | static int video_expand_toggle(void) | |
2987 | { | |
2988 | switch (video_supported) { | |
2989 | case TPACPI_VIDEO_570: | |
2990 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2991 | 0 : -EIO; | |
2992 | case TPACPI_VIDEO_770: | |
2993 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2994 | 0 : -EIO; | |
2995 | case TPACPI_VIDEO_NEW: | |
2996 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2997 | 0 : -EIO; | |
2998 | default: | |
2999 | return -ENOSYS; | |
3000 | } | |
3001 | /* not reached */ | |
78f81cc4 BD |
3002 | } |
3003 | ||
56b6aeb0 HMH |
3004 | static int video_read(char *p) |
3005 | { | |
83f34724 | 3006 | int status, autosw; |
56b6aeb0 HMH |
3007 | int len = 0; |
3008 | ||
83f34724 | 3009 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3010 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3011 | return len; | |
3012 | } | |
3013 | ||
83f34724 HMH |
3014 | status = video_outputsw_get(); |
3015 | if (status < 0) | |
3016 | return status; | |
3017 | ||
3018 | autosw = video_autosw_get(); | |
3019 | if (autosw < 0) | |
3020 | return autosw; | |
3021 | ||
56b6aeb0 HMH |
3022 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3023 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3024 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3025 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3026 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3027 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3028 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3029 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3030 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3031 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3032 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3033 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3034 | ||
3035 | return len; | |
3036 | } | |
3037 | ||
78f81cc4 | 3038 | static int video_write(char *buf) |
1da177e4 LT |
3039 | { |
3040 | char *cmd; | |
3041 | int enable, disable, status; | |
83f34724 | 3042 | int res; |
1da177e4 | 3043 | |
83f34724 | 3044 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3045 | return -ENODEV; |
3046 | ||
83f34724 HMH |
3047 | enable = 0; |
3048 | disable = 0; | |
1da177e4 LT |
3049 | |
3050 | while ((cmd = next_cmd(&buf))) { | |
3051 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3052 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3053 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3054 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3055 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3056 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3057 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3058 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3059 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3060 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3061 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3062 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3063 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3064 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3065 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3066 | res = video_autosw_set(1); |
3067 | if (res) | |
3068 | return res; | |
1da177e4 | 3069 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3070 | res = video_autosw_set(0); |
3071 | if (res) | |
3072 | return res; | |
1da177e4 | 3073 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3074 | res = video_outputsw_cycle(); |
3075 | if (res) | |
3076 | return res; | |
1da177e4 | 3077 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3078 | res = video_expand_toggle(); |
3079 | if (res) | |
3080 | return res; | |
1da177e4 LT |
3081 | } else |
3082 | return -EINVAL; | |
3083 | } | |
3084 | ||
3085 | if (enable || disable) { | |
83f34724 HMH |
3086 | status = video_outputsw_get(); |
3087 | if (status < 0) | |
3088 | return status; | |
3089 | res = video_outputsw_set((status & ~disable) | enable); | |
3090 | if (res) | |
3091 | return res; | |
1da177e4 LT |
3092 | } |
3093 | ||
3094 | return 0; | |
3095 | } | |
3096 | ||
a5763f22 HMH |
3097 | static struct ibm_struct video_driver_data = { |
3098 | .name = "video", | |
3099 | .read = video_read, | |
3100 | .write = video_write, | |
3101 | .exit = video_exit, | |
3102 | }; | |
3103 | ||
d7c1d17d HMH |
3104 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3105 | ||
56b6aeb0 HMH |
3106 | /************************************************************************* |
3107 | * Light (thinklight) subdriver | |
3108 | */ | |
1da177e4 | 3109 | |
e0c7dfe7 HMH |
3110 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3111 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3112 | |
a5763f22 | 3113 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3114 | { |
fe08bc4b HMH |
3115 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3116 | ||
e0c7dfe7 HMH |
3117 | TPACPI_ACPIHANDLE_INIT(ledb); |
3118 | TPACPI_ACPIHANDLE_INIT(lght); | |
3119 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 3120 | |
78f81cc4 | 3121 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3122 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3123 | |
d8fd94d9 | 3124 | if (tp_features.light) |
78f81cc4 BD |
3125 | /* light status not supported on |
3126 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3127 | tp_features.light_status = |
3128 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3129 | |
fe08bc4b | 3130 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3131 | str_supported(tp_features.light)); |
fe08bc4b | 3132 | |
d8fd94d9 | 3133 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
3134 | } |
3135 | ||
78f81cc4 | 3136 | static int light_read(char *p) |
1da177e4 LT |
3137 | { |
3138 | int len = 0; | |
3139 | int status = 0; | |
3140 | ||
d8fd94d9 | 3141 | if (!tp_features.light) { |
78f81cc4 | 3142 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3143 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3144 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3145 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3146 | } else { | |
1da177e4 LT |
3147 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
3148 | return -EIO; | |
3149 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
3150 | len += sprintf(p + len, "commands:\ton, off\n"); |
3151 | } | |
1da177e4 LT |
3152 | |
3153 | return len; | |
3154 | } | |
3155 | ||
78f81cc4 | 3156 | static int light_write(char *buf) |
1da177e4 LT |
3157 | { |
3158 | int cmos_cmd, lght_cmd; | |
3159 | char *cmd; | |
3160 | int success; | |
78f81cc4 | 3161 | |
d8fd94d9 | 3162 | if (!tp_features.light) |
78f81cc4 BD |
3163 | return -ENODEV; |
3164 | ||
1da177e4 LT |
3165 | while ((cmd = next_cmd(&buf))) { |
3166 | if (strlencmp(cmd, "on") == 0) { | |
3167 | cmos_cmd = 0x0c; | |
3168 | lght_cmd = 1; | |
3169 | } else if (strlencmp(cmd, "off") == 0) { | |
3170 | cmos_cmd = 0x0d; | |
3171 | lght_cmd = 0; | |
3172 | } else | |
3173 | return -EINVAL; | |
78f81cc4 | 3174 | |
1da177e4 | 3175 | success = cmos_handle ? |
78f81cc4 BD |
3176 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
3177 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
3178 | if (!success) |
3179 | return -EIO; | |
3180 | } | |
3181 | ||
3182 | return 0; | |
3183 | } | |
3184 | ||
a5763f22 HMH |
3185 | static struct ibm_struct light_driver_data = { |
3186 | .name = "light", | |
3187 | .read = light_read, | |
3188 | .write = light_write, | |
3189 | }; | |
3190 | ||
56b6aeb0 HMH |
3191 | /************************************************************************* |
3192 | * Dock subdriver | |
3193 | */ | |
1da177e4 | 3194 | |
85998248 | 3195 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3196 | |
f74a27d4 HMH |
3197 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3198 | static int dock_read(char *p); | |
3199 | static int dock_write(char *buf); | |
3200 | ||
e0c7dfe7 | 3201 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3202 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3203 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3204 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3205 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3206 | ||
5fba344c | 3207 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3208 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3209 | |
1ba90e3a TR |
3210 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3211 | {PCI_ROOT_HID_STRING, 0}, | |
3212 | {"", 0}, | |
3213 | }; | |
3214 | ||
d94a7f16 HMH |
3215 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3216 | { | |
3217 | .notify = dock_notify, | |
3218 | .handle = &dock_handle, | |
3219 | .type = ACPI_SYSTEM_NOTIFY, | |
3220 | }, | |
3221 | { | |
996fba08 HMH |
3222 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3223 | * We just use it to get notifications of dock hotplug | |
3224 | * in very old thinkpads */ | |
1ba90e3a | 3225 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3226 | .notify = dock_notify, |
3227 | .handle = &pci_handle, | |
3228 | .type = ACPI_SYSTEM_NOTIFY, | |
3229 | }, | |
3230 | }; | |
3231 | ||
3232 | static struct ibm_struct dock_driver_data[2] = { | |
3233 | { | |
3234 | .name = "dock", | |
3235 | .read = dock_read, | |
3236 | .write = dock_write, | |
3237 | .acpi = &ibm_dock_acpidriver[0], | |
3238 | }, | |
3239 | { | |
3240 | .name = "dock", | |
3241 | .acpi = &ibm_dock_acpidriver[1], | |
3242 | }, | |
3243 | }; | |
3244 | ||
1da177e4 LT |
3245 | #define dock_docked() (_sta(dock_handle) & 1) |
3246 | ||
a5763f22 | 3247 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3248 | { |
fe08bc4b HMH |
3249 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3250 | ||
e0c7dfe7 | 3251 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3252 | |
fe08bc4b HMH |
3253 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3254 | str_supported(dock_handle != NULL)); | |
3255 | ||
5fba344c HMH |
3256 | return (dock_handle)? 0 : 1; |
3257 | } | |
3258 | ||
d94a7f16 HMH |
3259 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3260 | { | |
3261 | int dock2_needed; | |
3262 | ||
3263 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3264 | ||
3265 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3266 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3267 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3268 | dock2_needed = (pci_handle != NULL); |
3269 | vdbg_printk(TPACPI_DBG_INIT, | |
3270 | "dock PCI handler for the TP 570 is %s\n", | |
3271 | str_supported(dock2_needed)); | |
3272 | } else { | |
3273 | vdbg_printk(TPACPI_DBG_INIT, | |
3274 | "dock subdriver part 2 not required\n"); | |
3275 | dock2_needed = 0; | |
3276 | } | |
3277 | ||
3278 | return (dock2_needed)? 0 : 1; | |
3279 | } | |
3280 | ||
56b6aeb0 HMH |
3281 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3282 | { | |
3283 | int docked = dock_docked(); | |
1ba90e3a TR |
3284 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3285 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3286 | int data; |
56b6aeb0 HMH |
3287 | |
3288 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3289 | data = 1; /* button */ |
56b6aeb0 | 3290 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3291 | data = 3; /* dock */ |
56b6aeb0 | 3292 | else if (event == 3 && docked) |
962ce8ca | 3293 | data = 1; /* button */ |
56b6aeb0 | 3294 | else if (event == 3 && !docked) |
962ce8ca | 3295 | data = 2; /* undock */ |
56b6aeb0 | 3296 | else if (event == 0 && docked) |
962ce8ca | 3297 | data = 3; /* dock */ |
56b6aeb0 | 3298 | else { |
e0c7dfe7 | 3299 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3300 | event, _sta(dock_handle)); |
962ce8ca | 3301 | data = 0; /* unknown */ |
56b6aeb0 | 3302 | } |
14e04fb3 | 3303 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3304 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3305 | ibm->acpi->device->dev.bus_id, | |
3306 | event, data); | |
56b6aeb0 HMH |
3307 | } |
3308 | ||
78f81cc4 | 3309 | static int dock_read(char *p) |
1da177e4 LT |
3310 | { |
3311 | int len = 0; | |
3312 | int docked = dock_docked(); | |
3313 | ||
3314 | if (!dock_handle) | |
3315 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3316 | else if (!docked) | |
3317 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3318 | else { | |
3319 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3320 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3321 | } | |
3322 | ||
3323 | return len; | |
3324 | } | |
3325 | ||
78f81cc4 | 3326 | static int dock_write(char *buf) |
1da177e4 LT |
3327 | { |
3328 | char *cmd; | |
3329 | ||
3330 | if (!dock_docked()) | |
78f81cc4 | 3331 | return -ENODEV; |
1da177e4 LT |
3332 | |
3333 | while ((cmd = next_cmd(&buf))) { | |
3334 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3335 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3336 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3337 | return -EIO; |
3338 | } else if (strlencmp(cmd, "dock") == 0) { | |
3339 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3340 | return -EIO; | |
3341 | } else | |
3342 | return -EINVAL; | |
1da177e4 | 3343 | } |
56b6aeb0 HMH |
3344 | |
3345 | return 0; | |
1da177e4 | 3346 | } |
56b6aeb0 | 3347 | |
85998248 | 3348 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3349 | |
3350 | /************************************************************************* | |
3351 | * Bay subdriver | |
3352 | */ | |
1da177e4 | 3353 | |
85998248 | 3354 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3355 | |
e0c7dfe7 | 3356 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3357 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3358 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3359 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3360 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3361 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3362 | "_EJ0", /* all others */ |
3363 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3364 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3365 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3366 | ); /* all others */ | |
e0c7dfe7 | 3367 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3368 | "_EJ0", /* 770x */ |
3369 | ); /* all others */ | |
3370 | ||
a5763f22 | 3371 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3372 | { |
fe08bc4b HMH |
3373 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3374 | ||
e0c7dfe7 | 3375 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3376 | if (bay_handle) |
e0c7dfe7 HMH |
3377 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3378 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3379 | if (bay2_handle) |
e0c7dfe7 | 3380 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3381 | |
d8fd94d9 HMH |
3382 | tp_features.bay_status = bay_handle && |
3383 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3384 | tp_features.bay_status2 = bay2_handle && | |
3385 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3386 | |
d8fd94d9 HMH |
3387 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3388 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3389 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3390 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3391 | |
fe08bc4b HMH |
3392 | vdbg_printk(TPACPI_DBG_INIT, |
3393 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3394 | str_supported(tp_features.bay_status), |
3395 | str_supported(tp_features.bay_eject), | |
3396 | str_supported(tp_features.bay_status2), | |
3397 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3398 | |
d8fd94d9 HMH |
3399 | return (tp_features.bay_status || tp_features.bay_eject || |
3400 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3401 | } |
3402 | ||
56b6aeb0 HMH |
3403 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3404 | { | |
14e04fb3 | 3405 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3406 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3407 | ibm->acpi->device->dev.bus_id, | |
3408 | event, 0); | |
56b6aeb0 HMH |
3409 | } |
3410 | ||
78f81cc4 BD |
3411 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3412 | ||
3413 | static int bay_read(char *p) | |
1da177e4 LT |
3414 | { |
3415 | int len = 0; | |
78f81cc4 BD |
3416 | int occupied = bay_occupied(bay); |
3417 | int occupied2 = bay_occupied(bay2); | |
3418 | int eject, eject2; | |
3419 | ||
d8fd94d9 HMH |
3420 | len += sprintf(p + len, "status:\t\t%s\n", |
3421 | tp_features.bay_status ? | |
3422 | (occupied ? "occupied" : "unoccupied") : | |
3423 | "not supported"); | |
3424 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3425 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3426 | "occupied" : "unoccupied"); | |
3427 | ||
d8fd94d9 HMH |
3428 | eject = tp_features.bay_eject && occupied; |
3429 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3430 | |
3431 | if (eject && eject2) | |
3432 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3433 | else if (eject) | |
1da177e4 | 3434 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3435 | else if (eject2) |
3436 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3437 | |
3438 | return len; | |
3439 | } | |
3440 | ||
78f81cc4 | 3441 | static int bay_write(char *buf) |
1da177e4 LT |
3442 | { |
3443 | char *cmd; | |
3444 | ||
d8fd94d9 | 3445 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3446 | return -ENODEV; |
3447 | ||
1da177e4 | 3448 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3449 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3450 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3451 | return -EIO; | |
d8fd94d9 | 3452 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3453 | strlencmp(cmd, "eject2") == 0) { |
3454 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3455 | return -EIO; |
3456 | } else | |
3457 | return -EINVAL; | |
3458 | } | |
3459 | ||
3460 | return 0; | |
78f81cc4 | 3461 | } |
a5763f22 | 3462 | |
8d376cd6 HMH |
3463 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3464 | .notify = bay_notify, | |
3465 | .handle = &bay_handle, | |
3466 | .type = ACPI_SYSTEM_NOTIFY, | |
3467 | }; | |
3468 | ||
a5763f22 HMH |
3469 | static struct ibm_struct bay_driver_data = { |
3470 | .name = "bay", | |
3471 | .read = bay_read, | |
3472 | .write = bay_write, | |
8d376cd6 | 3473 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3474 | }; |
3475 | ||
85998248 | 3476 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3477 | |
56b6aeb0 HMH |
3478 | /************************************************************************* |
3479 | * CMOS subdriver | |
3480 | */ | |
3481 | ||
b616004c HMH |
3482 | /* sysfs cmos_command -------------------------------------------------- */ |
3483 | static ssize_t cmos_command_store(struct device *dev, | |
3484 | struct device_attribute *attr, | |
3485 | const char *buf, size_t count) | |
3486 | { | |
3487 | unsigned long cmos_cmd; | |
3488 | int res; | |
3489 | ||
3490 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3491 | return -EINVAL; | |
3492 | ||
3493 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3494 | return (res)? res : count; | |
3495 | } | |
3496 | ||
3497 | static struct device_attribute dev_attr_cmos_command = | |
3498 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3499 | ||
3500 | /* --------------------------------------------------------------------- */ | |
3501 | ||
a5763f22 | 3502 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3503 | { |
b616004c HMH |
3504 | int res; |
3505 | ||
fe08bc4b HMH |
3506 | vdbg_printk(TPACPI_DBG_INIT, |
3507 | "initializing cmos commands subdriver\n"); | |
3508 | ||
e0c7dfe7 | 3509 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3510 | |
fe08bc4b HMH |
3511 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3512 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3513 | |
3514 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3515 | if (res) | |
3516 | return res; | |
3517 | ||
5fba344c HMH |
3518 | return (cmos_handle)? 0 : 1; |
3519 | } | |
3520 | ||
b616004c HMH |
3521 | static void cmos_exit(void) |
3522 | { | |
3523 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3524 | } | |
3525 | ||
78f81cc4 | 3526 | static int cmos_read(char *p) |
1da177e4 LT |
3527 | { |
3528 | int len = 0; | |
3529 | ||
78f81cc4 BD |
3530 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3531 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3532 | if (!cmos_handle) |
3533 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3534 | else { | |
3535 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3536 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3537 | } |
3538 | ||
3539 | return len; | |
3540 | } | |
3541 | ||
78f81cc4 | 3542 | static int cmos_write(char *buf) |
1da177e4 LT |
3543 | { |
3544 | char *cmd; | |
c9bea99c | 3545 | int cmos_cmd, res; |
1da177e4 LT |
3546 | |
3547 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3548 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3549 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3550 | /* cmos_cmd set */ |
3551 | } else | |
3552 | return -EINVAL; | |
3553 | ||
c9bea99c HMH |
3554 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3555 | if (res) | |
3556 | return res; | |
1da177e4 LT |
3557 | } |
3558 | ||
3559 | return 0; | |
78f81cc4 BD |
3560 | } |
3561 | ||
a5763f22 HMH |
3562 | static struct ibm_struct cmos_driver_data = { |
3563 | .name = "cmos", | |
3564 | .read = cmos_read, | |
3565 | .write = cmos_write, | |
b616004c | 3566 | .exit = cmos_exit, |
a5763f22 | 3567 | }; |
56b6aeb0 HMH |
3568 | |
3569 | /************************************************************************* | |
3570 | * LED subdriver | |
3571 | */ | |
3572 | ||
f74a27d4 HMH |
3573 | enum led_access_mode { |
3574 | TPACPI_LED_NONE = 0, | |
3575 | TPACPI_LED_570, /* 570 */ | |
3576 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3577 | TPACPI_LED_NEW, /* all others */ | |
3578 | }; | |
3579 | ||
3580 | enum { /* For TPACPI_LED_OLD */ | |
3581 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3582 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3583 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3584 | }; | |
3585 | ||
9a8e1738 | 3586 | static enum led_access_mode led_supported; |
78f81cc4 | 3587 | |
e0c7dfe7 | 3588 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3589 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3590 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3591 | "LED", /* all others */ |
3592 | ); /* R30, R31 */ | |
3593 | ||
a5763f22 | 3594 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3595 | { |
fe08bc4b HMH |
3596 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3597 | ||
e0c7dfe7 | 3598 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3599 | |
78f81cc4 BD |
3600 | if (!led_handle) |
3601 | /* led not supported on R30, R31 */ | |
efa27145 | 3602 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3603 | else if (strlencmp(led_path, "SLED") == 0) |
3604 | /* 570 */ | |
efa27145 | 3605 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3606 | else if (strlencmp(led_path, "SYSL") == 0) |
3607 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3608 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3609 | else |
3610 | /* all others */ | |
efa27145 | 3611 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3612 | |
fe08bc4b HMH |
3613 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3614 | str_supported(led_supported), led_supported); | |
3615 | ||
5fba344c | 3616 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3617 | } |
3618 | ||
3619 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3620 | ||
3621 | static int led_read(char *p) | |
1da177e4 LT |
3622 | { |
3623 | int len = 0; | |
3624 | ||
78f81cc4 BD |
3625 | if (!led_supported) { |
3626 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3627 | return len; | |
3628 | } | |
3629 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3630 | ||
efa27145 | 3631 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3632 | /* 570 */ |
3633 | int i, status; | |
3634 | for (i = 0; i < 8; i++) { | |
3635 | if (!acpi_evalf(ec_handle, | |
3636 | &status, "GLED", "dd", 1 << i)) | |
3637 | return -EIO; | |
3638 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3639 | i, led_status(status)); | |
3640 | } | |
3641 | } | |
3642 | ||
1da177e4 | 3643 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3644 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3645 | |
3646 | return len; | |
3647 | } | |
3648 | ||
78f81cc4 BD |
3649 | /* off, on, blink */ |
3650 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3651 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3652 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3653 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3654 | ||
78f81cc4 | 3655 | static int led_write(char *buf) |
1da177e4 LT |
3656 | { |
3657 | char *cmd; | |
78f81cc4 BD |
3658 | int led, ind, ret; |
3659 | ||
3660 | if (!led_supported) | |
3661 | return -ENODEV; | |
1da177e4 LT |
3662 | |
3663 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3664 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3665 | return -EINVAL; |
3666 | ||
78f81cc4 BD |
3667 | if (strstr(cmd, "off")) { |
3668 | ind = 0; | |
1da177e4 | 3669 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3670 | ind = 1; |
3671 | } else if (strstr(cmd, "blink")) { | |
3672 | ind = 2; | |
1da177e4 LT |
3673 | } else |
3674 | return -EINVAL; | |
78f81cc4 | 3675 | |
efa27145 | 3676 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3677 | /* 570 */ |
3678 | led = 1 << led; | |
1da177e4 | 3679 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3680 | led, led_sled_arg1[ind])) |
1da177e4 | 3681 | return -EIO; |
efa27145 | 3682 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3683 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3684 | led = 1 << led; | |
efa27145 | 3685 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 | 3686 | if (ret >= 0) |
35ff8b9f HMH |
3687 | ret = ec_write(TPACPI_LED_EC_HLBL, |
3688 | led * led_exp_hlbl[ind]); | |
78f81cc4 | 3689 | if (ret >= 0) |
35ff8b9f HMH |
3690 | ret = ec_write(TPACPI_LED_EC_HLCL, |
3691 | led * led_exp_hlcl[ind]); | |
78f81cc4 BD |
3692 | if (ret < 0) |
3693 | return ret; | |
3694 | } else { | |
3695 | /* all others */ | |
3696 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3697 | led, led_led_arg1[ind])) | |
1da177e4 | 3698 | return -EIO; |
78f81cc4 BD |
3699 | } |
3700 | } | |
3701 | ||
3702 | return 0; | |
3703 | } | |
3704 | ||
a5763f22 HMH |
3705 | static struct ibm_struct led_driver_data = { |
3706 | .name = "led", | |
3707 | .read = led_read, | |
3708 | .write = led_write, | |
3709 | }; | |
3710 | ||
56b6aeb0 HMH |
3711 | /************************************************************************* |
3712 | * Beep subdriver | |
3713 | */ | |
3714 | ||
e0c7dfe7 | 3715 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3716 | |
a5763f22 | 3717 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3718 | { |
fe08bc4b HMH |
3719 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3720 | ||
e0c7dfe7 | 3721 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3722 | |
fe08bc4b HMH |
3723 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3724 | str_supported(beep_handle != NULL)); | |
3725 | ||
5fba344c HMH |
3726 | return (beep_handle)? 0 : 1; |
3727 | } | |
3728 | ||
78f81cc4 BD |
3729 | static int beep_read(char *p) |
3730 | { | |
3731 | int len = 0; | |
3732 | ||
3733 | if (!beep_handle) | |
3734 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3735 | else { | |
3736 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3737 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3738 | } | |
3739 | ||
3740 | return len; | |
3741 | } | |
3742 | ||
3743 | static int beep_write(char *buf) | |
3744 | { | |
3745 | char *cmd; | |
3746 | int beep_cmd; | |
3747 | ||
3748 | if (!beep_handle) | |
3749 | return -ENODEV; | |
3750 | ||
3751 | while ((cmd = next_cmd(&buf))) { | |
3752 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3753 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3754 | /* beep_cmd set */ | |
3755 | } else | |
3756 | return -EINVAL; | |
3757 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3758 | return -EIO; | |
3759 | } | |
3760 | ||
3761 | return 0; | |
3762 | } | |
3763 | ||
a5763f22 HMH |
3764 | static struct ibm_struct beep_driver_data = { |
3765 | .name = "beep", | |
3766 | .read = beep_read, | |
3767 | .write = beep_write, | |
3768 | }; | |
3769 | ||
56b6aeb0 HMH |
3770 | /************************************************************************* |
3771 | * Thermal subdriver | |
3772 | */ | |
78f81cc4 | 3773 | |
f74a27d4 HMH |
3774 | enum thermal_access_mode { |
3775 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3776 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3777 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3778 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3779 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3780 | }; | |
3781 | ||
3782 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3783 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3784 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3785 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3786 | }; | |
3787 | ||
3788 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3789 | struct ibm_thermal_sensors_struct { | |
3790 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3791 | }; | |
3792 | ||
a26f878a | 3793 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3794 | |
b21a15f6 HMH |
3795 | /* idx is zero-based */ |
3796 | static int thermal_get_sensor(int idx, s32 *value) | |
3797 | { | |
3798 | int t; | |
3799 | s8 tmp; | |
3800 | char tmpi[5]; | |
3801 | ||
3802 | t = TP_EC_THERMAL_TMP0; | |
3803 | ||
3804 | switch (thermal_read_mode) { | |
3805 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3806 | case TPACPI_THERMAL_TPEC_16: | |
3807 | if (idx >= 8 && idx <= 15) { | |
3808 | t = TP_EC_THERMAL_TMP8; | |
3809 | idx -= 8; | |
3810 | } | |
3811 | /* fallthrough */ | |
3812 | #endif | |
3813 | case TPACPI_THERMAL_TPEC_8: | |
3814 | if (idx <= 7) { | |
3815 | if (!acpi_ec_read(t + idx, &tmp)) | |
3816 | return -EIO; | |
3817 | *value = tmp * 1000; | |
3818 | return 0; | |
3819 | } | |
3820 | break; | |
3821 | ||
3822 | case TPACPI_THERMAL_ACPI_UPDT: | |
3823 | if (idx <= 7) { | |
3824 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3825 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3826 | return -EIO; | |
3827 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3828 | return -EIO; | |
3829 | *value = (t - 2732) * 100; | |
3830 | return 0; | |
3831 | } | |
3832 | break; | |
3833 | ||
3834 | case TPACPI_THERMAL_ACPI_TMP07: | |
3835 | if (idx <= 7) { | |
3836 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3837 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3838 | return -EIO; | |
3839 | if (t > 127 || t < -127) | |
3840 | t = TP_EC_THERMAL_TMP_NA; | |
3841 | *value = t * 1000; | |
3842 | return 0; | |
3843 | } | |
3844 | break; | |
3845 | ||
3846 | case TPACPI_THERMAL_NONE: | |
3847 | default: | |
3848 | return -ENOSYS; | |
3849 | } | |
3850 | ||
3851 | return -EINVAL; | |
3852 | } | |
3853 | ||
3854 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3855 | { | |
3856 | int res, i; | |
3857 | int n; | |
3858 | ||
3859 | n = 8; | |
3860 | i = 0; | |
3861 | ||
3862 | if (!s) | |
3863 | return -EINVAL; | |
3864 | ||
3865 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3866 | n = 16; | |
3867 | ||
35ff8b9f | 3868 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
3869 | res = thermal_get_sensor(i, &s->temp[i]); |
3870 | if (res) | |
3871 | return res; | |
3872 | } | |
3873 | ||
3874 | return n; | |
3875 | } | |
f74a27d4 | 3876 | |
2c37aa4e HMH |
3877 | /* sysfs temp##_input -------------------------------------------------- */ |
3878 | ||
3879 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3880 | struct device_attribute *attr, | |
3881 | char *buf) | |
3882 | { | |
3883 | struct sensor_device_attribute *sensor_attr = | |
3884 | to_sensor_dev_attr(attr); | |
3885 | int idx = sensor_attr->index; | |
3886 | s32 value; | |
3887 | int res; | |
3888 | ||
3889 | res = thermal_get_sensor(idx, &value); | |
3890 | if (res) | |
3891 | return res; | |
3892 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3893 | return -ENXIO; | |
3894 | ||
3895 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3896 | } | |
3897 | ||
3898 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
3899 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
3900 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
3901 | |
3902 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3903 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3904 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3905 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3906 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3907 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3908 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3909 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3910 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3911 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3912 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3913 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3914 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3915 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3916 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3917 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3918 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3919 | }; | |
3920 | ||
3921 | #define THERMAL_ATTRS(X) \ | |
3922 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3923 | ||
3924 | static struct attribute *thermal_temp_input_attr[] = { | |
3925 | THERMAL_ATTRS(8), | |
3926 | THERMAL_ATTRS(9), | |
3927 | THERMAL_ATTRS(10), | |
3928 | THERMAL_ATTRS(11), | |
3929 | THERMAL_ATTRS(12), | |
3930 | THERMAL_ATTRS(13), | |
3931 | THERMAL_ATTRS(14), | |
3932 | THERMAL_ATTRS(15), | |
3933 | THERMAL_ATTRS(0), | |
3934 | THERMAL_ATTRS(1), | |
3935 | THERMAL_ATTRS(2), | |
3936 | THERMAL_ATTRS(3), | |
3937 | THERMAL_ATTRS(4), | |
3938 | THERMAL_ATTRS(5), | |
3939 | THERMAL_ATTRS(6), | |
3940 | THERMAL_ATTRS(7), | |
3941 | NULL | |
3942 | }; | |
3943 | ||
3944 | static const struct attribute_group thermal_temp_input16_group = { | |
3945 | .attrs = thermal_temp_input_attr | |
3946 | }; | |
3947 | ||
3948 | static const struct attribute_group thermal_temp_input8_group = { | |
3949 | .attrs = &thermal_temp_input_attr[8] | |
3950 | }; | |
3951 | ||
3952 | #undef THERMAL_SENSOR_ATTR_TEMP | |
3953 | #undef THERMAL_ATTRS | |
3954 | ||
3955 | /* --------------------------------------------------------------------- */ | |
3956 | ||
a5763f22 | 3957 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3958 | { |
60eb0b35 HMH |
3959 | u8 t, ta1, ta2; |
3960 | int i; | |
5fba344c | 3961 | int acpi_tmp7; |
2c37aa4e | 3962 | int res; |
5fba344c | 3963 | |
fe08bc4b HMH |
3964 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
3965 | ||
5fba344c | 3966 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 3967 | |
3d6f99ca | 3968 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
3969 | /* |
3970 | * Direct EC access mode: sensors at registers | |
3971 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
3972 | * non-implemented, thermal sensors return 0x80 when | |
3973 | * not available | |
3974 | */ | |
78f81cc4 | 3975 | |
60eb0b35 HMH |
3976 | ta1 = ta2 = 0; |
3977 | for (i = 0; i < 8; i++) { | |
04cc862c | 3978 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
3979 | ta1 |= t; |
3980 | } else { | |
3981 | ta1 = 0; | |
3982 | break; | |
3983 | } | |
04cc862c | 3984 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
3985 | ta2 |= t; |
3986 | } else { | |
3987 | ta1 = 0; | |
3988 | break; | |
3989 | } | |
3990 | } | |
3991 | if (ta1 == 0) { | |
3992 | /* This is sheer paranoia, but we handle it anyway */ | |
3993 | if (acpi_tmp7) { | |
e0c7dfe7 | 3994 | printk(TPACPI_ERR |
60eb0b35 | 3995 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
3996 | "falling back to ACPI TMPx access " |
3997 | "mode\n"); | |
efa27145 | 3998 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 3999 | } else { |
e0c7dfe7 | 4000 | printk(TPACPI_ERR |
60eb0b35 HMH |
4001 | "ThinkPad ACPI EC access misbehaving, " |
4002 | "disabling thermal sensors access\n"); | |
efa27145 | 4003 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4004 | } |
4005 | } else { | |
4006 | thermal_read_mode = | |
4007 | (ta2 != 0) ? | |
efa27145 | 4008 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4009 | } |
4010 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4011 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4012 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4013 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4014 | } else { |
4015 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4016 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4017 | } |
4018 | } else { | |
4019 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4020 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4021 | } |
78f81cc4 | 4022 | |
fe08bc4b HMH |
4023 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4024 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4025 | thermal_read_mode); | |
4026 | ||
35ff8b9f | 4027 | switch (thermal_read_mode) { |
2c37aa4e | 4028 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4029 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4030 | &thermal_temp_input16_group); |
4031 | if (res) | |
4032 | return res; | |
4033 | break; | |
4034 | case TPACPI_THERMAL_TPEC_8: | |
4035 | case TPACPI_THERMAL_ACPI_TMP07: | |
4036 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4037 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4038 | &thermal_temp_input8_group); |
4039 | if (res) | |
4040 | return res; | |
4041 | break; | |
4042 | case TPACPI_THERMAL_NONE: | |
4043 | default: | |
4044 | return 1; | |
4045 | } | |
4046 | ||
4047 | return 0; | |
4048 | } | |
4049 | ||
4050 | static void thermal_exit(void) | |
4051 | { | |
35ff8b9f | 4052 | switch (thermal_read_mode) { |
2c37aa4e | 4053 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4054 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4055 | &thermal_temp_input16_group); |
4056 | break; | |
4057 | case TPACPI_THERMAL_TPEC_8: | |
4058 | case TPACPI_THERMAL_ACPI_TMP07: | |
4059 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4060 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4061 | &thermal_temp_input16_group); |
4062 | break; | |
4063 | case TPACPI_THERMAL_NONE: | |
4064 | default: | |
4065 | break; | |
4066 | } | |
78f81cc4 BD |
4067 | } |
4068 | ||
a26f878a HMH |
4069 | static int thermal_read(char *p) |
4070 | { | |
4071 | int len = 0; | |
4072 | int n, i; | |
4073 | struct ibm_thermal_sensors_struct t; | |
4074 | ||
4075 | n = thermal_get_sensors(&t); | |
4076 | if (unlikely(n < 0)) | |
4077 | return n; | |
4078 | ||
4079 | len += sprintf(p + len, "temperatures:\t"); | |
4080 | ||
4081 | if (n > 0) { | |
4082 | for (i = 0; i < (n - 1); i++) | |
4083 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4084 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4085 | } else | |
4086 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4087 | |
4088 | return len; | |
4089 | } | |
4090 | ||
a5763f22 HMH |
4091 | static struct ibm_struct thermal_driver_data = { |
4092 | .name = "thermal", | |
4093 | .read = thermal_read, | |
2c37aa4e | 4094 | .exit = thermal_exit, |
a5763f22 HMH |
4095 | }; |
4096 | ||
56b6aeb0 HMH |
4097 | /************************************************************************* |
4098 | * EC Dump subdriver | |
4099 | */ | |
4100 | ||
78f81cc4 BD |
4101 | static u8 ecdump_regs[256]; |
4102 | ||
4103 | static int ecdump_read(char *p) | |
4104 | { | |
4105 | int len = 0; | |
4106 | int i, j; | |
4107 | u8 v; | |
4108 | ||
4109 | len += sprintf(p + len, "EC " | |
4110 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4111 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4112 | for (i = 0; i < 256; i += 16) { | |
4113 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4114 | for (j = 0; j < 16; j++) { | |
4115 | if (!acpi_ec_read(i + j, &v)) | |
4116 | break; | |
4117 | if (v != ecdump_regs[i + j]) | |
4118 | len += sprintf(p + len, " *%02x", v); | |
4119 | else | |
4120 | len += sprintf(p + len, " %02x", v); | |
4121 | ecdump_regs[i + j] = v; | |
4122 | } | |
4123 | len += sprintf(p + len, "\n"); | |
4124 | if (j != 16) | |
4125 | break; | |
4126 | } | |
4127 | ||
4128 | /* These are way too dangerous to advertise openly... */ | |
4129 | #if 0 | |
4130 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4131 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4132 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4133 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4134 | #endif | |
4135 | return len; | |
4136 | } | |
4137 | ||
4138 | static int ecdump_write(char *buf) | |
4139 | { | |
4140 | char *cmd; | |
4141 | int i, v; | |
4142 | ||
4143 | while ((cmd = next_cmd(&buf))) { | |
4144 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4145 | /* i and v set */ | |
4146 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4147 | /* i and v set */ | |
4148 | } else | |
4149 | return -EINVAL; | |
4150 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4151 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4152 | return -EIO; |
4153 | } else | |
4154 | return -EINVAL; | |
4155 | } | |
4156 | ||
4157 | return 0; | |
78f81cc4 BD |
4158 | } |
4159 | ||
a5763f22 HMH |
4160 | static struct ibm_struct ecdump_driver_data = { |
4161 | .name = "ecdump", | |
4162 | .read = ecdump_read, | |
4163 | .write = ecdump_write, | |
92641177 | 4164 | .flags.experimental = 1, |
a5763f22 HMH |
4165 | }; |
4166 | ||
56b6aeb0 HMH |
4167 | /************************************************************************* |
4168 | * Backlight/brightness subdriver | |
4169 | */ | |
4170 | ||
f74a27d4 HMH |
4171 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4172 | ||
94954cc6 | 4173 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4174 | static int brightness_offset = 0x31; |
4175 | static int brightness_mode; | |
4176 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4177 | ||
b21a15f6 | 4178 | static struct mutex brightness_mutex; |
56b6aeb0 | 4179 | |
b21a15f6 HMH |
4180 | /* |
4181 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4182 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
4183 | */ | |
4184 | static int brightness_get(struct backlight_device *bd) | |
4185 | { | |
4186 | u8 lec = 0, lcmos = 0, level = 0; | |
4187 | ||
4188 | if (brightness_mode & 1) { | |
4189 | if (!acpi_ec_read(brightness_offset, &lec)) | |
4190 | return -EIO; | |
4191 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4192 | level = lec; | |
4193 | }; | |
4194 | if (brightness_mode & 2) { | |
4195 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4196 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4197 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4198 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4199 | level = lcmos; | |
4200 | } | |
4201 | ||
4202 | if (brightness_mode == 3 && lec != lcmos) { | |
e0c7dfe7 | 4203 | printk(TPACPI_ERR |
b21a15f6 HMH |
4204 | "CMOS NVRAM (%u) and EC (%u) do not agree " |
4205 | "on display brightness level\n", | |
4206 | (unsigned int) lcmos, | |
4207 | (unsigned int) lec); | |
4208 | return -EIO; | |
4209 | } | |
4210 | ||
4211 | return level; | |
4212 | } | |
4213 | ||
4214 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4215 | static int brightness_set(int value) | |
4216 | { | |
4217 | int cmos_cmd, inc, i, res; | |
4218 | int current_value; | |
4219 | ||
4220 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4221 | return -EINVAL; | |
4222 | ||
4223 | res = mutex_lock_interruptible(&brightness_mutex); | |
4224 | if (res < 0) | |
4225 | return res; | |
4226 | ||
4227 | current_value = brightness_get(NULL); | |
4228 | if (current_value < 0) { | |
4229 | res = current_value; | |
4230 | goto errout; | |
4231 | } | |
4232 | ||
4233 | cmos_cmd = value > current_value ? | |
4234 | TP_CMOS_BRIGHTNESS_UP : | |
4235 | TP_CMOS_BRIGHTNESS_DOWN; | |
4236 | inc = (value > current_value)? 1 : -1; | |
4237 | ||
4238 | res = 0; | |
4239 | for (i = current_value; i != value; i += inc) { | |
4240 | if ((brightness_mode & 2) && | |
4241 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4242 | res = -EIO; | |
4243 | goto errout; | |
4244 | } | |
4245 | if ((brightness_mode & 1) && | |
4246 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4247 | res = -EIO; | |
4248 | goto errout;; | |
4249 | } | |
4250 | } | |
4251 | ||
4252 | errout: | |
4253 | mutex_unlock(&brightness_mutex); | |
4254 | return res; | |
4255 | } | |
4256 | ||
4257 | /* sysfs backlight class ----------------------------------------------- */ | |
4258 | ||
4259 | static int brightness_update_status(struct backlight_device *bd) | |
4260 | { | |
4261 | /* it is the backlight class's job (caller) to handle | |
4262 | * EINTR and other errors properly */ | |
4263 | return brightness_set( | |
4264 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4265 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4266 | bd->props.brightness : 0); | |
4267 | } | |
4268 | ||
4269 | static struct backlight_ops ibm_backlight_data = { | |
35ff8b9f HMH |
4270 | .get_brightness = brightness_get, |
4271 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4272 | }; |
4273 | ||
b21a15f6 | 4274 | /* --------------------------------------------------------------------- */ |
f432255e | 4275 | |
a3f104c0 HMH |
4276 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4277 | { | |
4278 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4279 | union acpi_object *obj; | |
4280 | int rc; | |
4281 | ||
4282 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4283 | obj = (union acpi_object *)buffer.pointer; | |
4284 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
e0c7dfe7 HMH |
4285 | printk(TPACPI_ERR "Unknown BCLL data, " |
4286 | "please report this to %s\n", TPACPI_MAIL); | |
a3f104c0 HMH |
4287 | rc = 0; |
4288 | } else { | |
4289 | rc = obj->package.count; | |
4290 | } | |
4291 | } else { | |
4292 | return 0; | |
4293 | } | |
4294 | ||
4295 | kfree(buffer.pointer); | |
4296 | return rc; | |
4297 | } | |
4298 | ||
4299 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4300 | void *context, void **rv) | |
4301 | { | |
4302 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4303 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4304 | ||
4305 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4306 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4307 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4308 | *rv = handle; | |
4309 | return AE_CTRL_TERMINATE; | |
4310 | } else { | |
4311 | return AE_OK; | |
4312 | } | |
4313 | } else { | |
4314 | return AE_OK; | |
4315 | } | |
4316 | } | |
4317 | ||
4318 | static int __init brightness_check_levels(void) | |
4319 | { | |
4320 | int status; | |
4321 | void *found_node = NULL; | |
4322 | ||
4323 | if (!vid_handle) { | |
e0c7dfe7 | 4324 | TPACPI_ACPIHANDLE_INIT(vid); |
a3f104c0 HMH |
4325 | } |
4326 | if (!vid_handle) | |
4327 | return 0; | |
4328 | ||
4329 | /* Search for a BCLL package with 16 levels */ | |
4330 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
35ff8b9f HMH |
4331 | brightness_find_bcll, NULL, |
4332 | &found_node); | |
a3f104c0 HMH |
4333 | |
4334 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4335 | } | |
4336 | ||
e11e211a HMH |
4337 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4338 | void *context, void **rv) | |
4339 | { | |
4340 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4341 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4342 | ||
4343 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4344 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4345 | *rv = handle; | |
4346 | return AE_CTRL_TERMINATE; | |
4347 | } else { | |
4348 | return AE_OK; | |
4349 | } | |
4350 | } | |
4351 | ||
4352 | static int __init brightness_check_std_acpi_support(void) | |
4353 | { | |
4354 | int status; | |
4355 | void *found_node = NULL; | |
4356 | ||
4357 | if (!vid_handle) { | |
e0c7dfe7 | 4358 | TPACPI_ACPIHANDLE_INIT(vid); |
e11e211a HMH |
4359 | } |
4360 | if (!vid_handle) | |
4361 | return 0; | |
4362 | ||
4363 | /* Search for a _BCL method, but don't execute it */ | |
4364 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
35ff8b9f | 4365 | brightness_find_bcl, NULL, &found_node); |
e11e211a HMH |
4366 | |
4367 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4368 | } | |
4369 | ||
a5763f22 | 4370 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4371 | { |
4372 | int b; | |
4373 | ||
fe08bc4b HMH |
4374 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4375 | ||
f432255e HMH |
4376 | mutex_init(&brightness_mutex); |
4377 | ||
87cc537a HMH |
4378 | if (!brightness_enable) { |
4379 | dbg_printk(TPACPI_DBG_INIT, | |
35ff8b9f HMH |
4380 | "brightness support disabled by " |
4381 | "module parameter\n"); | |
87cc537a | 4382 | return 1; |
e11e211a HMH |
4383 | } else if (brightness_enable > 1) { |
4384 | if (brightness_check_std_acpi_support()) { | |
e0c7dfe7 | 4385 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4386 | "standard ACPI backlight interface " |
4387 | "available, not loading native one...\n"); | |
e11e211a HMH |
4388 | return 1; |
4389 | } | |
87cc537a HMH |
4390 | } |
4391 | ||
24d3b774 HMH |
4392 | if (!brightness_mode) { |
4393 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4394 | brightness_mode = 2; | |
4395 | else | |
4396 | brightness_mode = 3; | |
4397 | ||
4398 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4399 | brightness_mode); | |
4400 | } | |
4401 | ||
4402 | if (brightness_mode > 3) | |
4403 | return -EINVAL; | |
4404 | ||
a3f104c0 HMH |
4405 | tp_features.bright_16levels = |
4406 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4407 | brightness_check_levels(); | |
4408 | ||
56b6aeb0 HMH |
4409 | b = brightness_get(NULL); |
4410 | if (b < 0) | |
24d3b774 | 4411 | return 1; |
56b6aeb0 | 4412 | |
a3f104c0 | 4413 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4414 | printk(TPACPI_INFO |
4415 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4416 | |
7d5a015e HMH |
4417 | ibm_backlight_device = backlight_device_register( |
4418 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4419 | &ibm_backlight_data); | |
56b6aeb0 | 4420 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4421 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4422 | return PTR_ERR(ibm_backlight_device); |
4423 | } | |
fe08bc4b | 4424 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4425 | |
a3f104c0 HMH |
4426 | ibm_backlight_device->props.max_brightness = |
4427 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4428 | ibm_backlight_device->props.brightness = b; |
4429 | backlight_update_status(ibm_backlight_device); | |
4430 | ||
4431 | return 0; | |
4432 | } | |
4433 | ||
4434 | static void brightness_exit(void) | |
4435 | { | |
4436 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4437 | vdbg_printk(TPACPI_DBG_EXIT, |
4438 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4439 | backlight_device_unregister(ibm_backlight_device); |
4440 | ibm_backlight_device = NULL; | |
4441 | } | |
4442 | } | |
4443 | ||
56b6aeb0 HMH |
4444 | static int brightness_read(char *p) |
4445 | { | |
4446 | int len = 0; | |
4447 | int level; | |
4448 | ||
35ff8b9f HMH |
4449 | level = brightness_get(NULL); |
4450 | if (level < 0) { | |
56b6aeb0 HMH |
4451 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4452 | } else { | |
a3f104c0 | 4453 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4454 | len += sprintf(p + len, "commands:\tup, down\n"); |
4455 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4456 | " (<level> is 0-%d)\n", |
4457 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4458 | } |
4459 | ||
4460 | return len; | |
4461 | } | |
4462 | ||
8acb0250 HM |
4463 | static int brightness_write(char *buf) |
4464 | { | |
4465 | int level; | |
4273af8d | 4466 | int rc; |
1da177e4 | 4467 | char *cmd; |
a3f104c0 | 4468 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4469 | |
4273af8d HMH |
4470 | level = brightness_get(NULL); |
4471 | if (level < 0) | |
4472 | return level; | |
78f81cc4 | 4473 | |
4273af8d | 4474 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4475 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4476 | if (level < max_level) |
4477 | level++; | |
78f81cc4 | 4478 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4479 | if (level > 0) |
4480 | level--; | |
4481 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4482 | level >= 0 && level <= max_level) { | |
4483 | /* new level set */ | |
78f81cc4 BD |
4484 | } else |
4485 | return -EINVAL; | |
78f81cc4 BD |
4486 | } |
4487 | ||
4273af8d HMH |
4488 | /* |
4489 | * Now we know what the final level should be, so we try to set it. | |
4490 | * Doing it this way makes the syscall restartable in case of EINTR | |
4491 | */ | |
4492 | rc = brightness_set(level); | |
4493 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4494 | } |
4495 | ||
a5763f22 HMH |
4496 | static struct ibm_struct brightness_driver_data = { |
4497 | .name = "brightness", | |
4498 | .read = brightness_read, | |
4499 | .write = brightness_write, | |
4500 | .exit = brightness_exit, | |
4501 | }; | |
4502 | ||
56b6aeb0 HMH |
4503 | /************************************************************************* |
4504 | * Volume subdriver | |
4505 | */ | |
fb87a811 | 4506 | |
f74a27d4 HMH |
4507 | static int volume_offset = 0x30; |
4508 | ||
78f81cc4 BD |
4509 | static int volume_read(char *p) |
4510 | { | |
4511 | int len = 0; | |
4512 | u8 level; | |
4513 | ||
4514 | if (!acpi_ec_read(volume_offset, &level)) { | |
4515 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4516 | } else { | |
4517 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4518 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4519 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4520 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4521 | " (<level> is 0-15)\n"); | |
4522 | } | |
4523 | ||
4524 | return len; | |
4525 | } | |
4526 | ||
78f81cc4 BD |
4527 | static int volume_write(char *buf) |
4528 | { | |
4529 | int cmos_cmd, inc, i; | |
4530 | u8 level, mute; | |
4531 | int new_level, new_mute; | |
4532 | char *cmd; | |
4533 | ||
4534 | while ((cmd = next_cmd(&buf))) { | |
4535 | if (!acpi_ec_read(volume_offset, &level)) | |
4536 | return -EIO; | |
4537 | new_mute = mute = level & 0x40; | |
4538 | new_level = level = level & 0xf; | |
4539 | ||
4540 | if (strlencmp(cmd, "up") == 0) { | |
4541 | if (mute) | |
4542 | new_mute = 0; | |
4543 | else | |
4544 | new_level = level == 15 ? 15 : level + 1; | |
4545 | } else if (strlencmp(cmd, "down") == 0) { | |
4546 | if (mute) | |
4547 | new_mute = 0; | |
4548 | else | |
4549 | new_level = level == 0 ? 0 : level - 1; | |
4550 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4551 | new_level >= 0 && new_level <= 15) { | |
4552 | /* new_level set */ | |
4553 | } else if (strlencmp(cmd, "mute") == 0) { | |
4554 | new_mute = 0x40; | |
1da177e4 LT |
4555 | } else |
4556 | return -EINVAL; | |
4557 | ||
35ff8b9f HMH |
4558 | if (new_level != level) { |
4559 | /* mute doesn't change */ | |
4560 | ||
4561 | cmos_cmd = (new_level > level) ? | |
4562 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4563 | inc = new_level > level ? 1 : -1; |
4564 | ||
c9bea99c | 4565 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4566 | !acpi_ec_write(volume_offset, level))) |
4567 | return -EIO; | |
4568 | ||
4569 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4570 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4571 | !acpi_ec_write(volume_offset, i + inc)) |
4572 | return -EIO; | |
4573 | ||
35ff8b9f HMH |
4574 | if (mute && |
4575 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4576 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4577 | return -EIO; |
35ff8b9f | 4578 | } |
78f81cc4 BD |
4579 | } |
4580 | ||
35ff8b9f HMH |
4581 | if (new_mute != mute) { |
4582 | /* level doesn't change */ | |
4583 | ||
4584 | cmos_cmd = (new_mute) ? | |
4585 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4586 | |
c9bea99c | 4587 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4588 | !acpi_ec_write(volume_offset, level + new_mute)) |
4589 | return -EIO; | |
4590 | } | |
4591 | } | |
4592 | ||
4593 | return 0; | |
4594 | } | |
4595 | ||
a5763f22 HMH |
4596 | static struct ibm_struct volume_driver_data = { |
4597 | .name = "volume", | |
4598 | .read = volume_read, | |
4599 | .write = volume_write, | |
4600 | }; | |
56b6aeb0 HMH |
4601 | |
4602 | /************************************************************************* | |
4603 | * Fan subdriver | |
4604 | */ | |
4605 | ||
4606 | /* | |
4607 | * FAN ACCESS MODES | |
4608 | * | |
efa27145 | 4609 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4610 | * ACPI GFAN method: returns fan level |
4611 | * | |
efa27145 | 4612 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4613 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4614 | * |
efa27145 | 4615 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4616 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4617 | * | |
f51d1a39 HMH |
4618 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4619 | * it for writing. | |
56b6aeb0 | 4620 | * |
efa27145 | 4621 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4622 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4623 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4624 | * |
4625 | * Fan speed changes of any sort (including those caused by the | |
4626 | * disengaged mode) are usually done slowly by the firmware as the | |
4627 | * maximum ammount of fan duty cycle change per second seems to be | |
4628 | * limited. | |
4629 | * | |
4630 | * Reading is not available if GFAN exists. | |
4631 | * Writing is not available if SFAN exists. | |
4632 | * | |
4633 | * Bits | |
4634 | * 7 automatic mode engaged; | |
4635 | * (default operation mode of the ThinkPad) | |
4636 | * fan level is ignored in this mode. | |
f51d1a39 | 4637 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4638 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4639 | * the tachometer while the fan controller ramps up |
4640 | * the speed (which can take up to a few *minutes*). | |
4641 | * Speeds up fan to 100% duty-cycle, which is far above | |
4642 | * the standard RPM levels. It is not impossible that | |
4643 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4644 | * 5-3 unused in some models. Extra bits for fan level |
4645 | * in others, but still useless as all values above | |
4646 | * 7 map to the same speed as level 7 in these models. | |
4647 | * 2-0 fan level (0..7 usually) | |
4648 | * 0x00 = stop | |
4649 | * 0x07 = max (set when temperatures critical) | |
4650 | * Some ThinkPads may have other levels, see | |
efa27145 | 4651 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4652 | * |
4653 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4654 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4655 | * does so, its initial value is meaningless (0x07). | |
4656 | * | |
4657 | * For firmware bugs, refer to: | |
4658 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4659 | * | |
4660 | * ---- | |
4661 | * | |
4662 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4663 | * Main fan tachometer reading (in RPM) | |
4664 | * | |
4665 | * This register is present on all ThinkPads with a new-style EC, and | |
4666 | * it is known not to be present on the A21m/e, and T22, as there is | |
4667 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4668 | * ThinkPads from this same time period (and earlier) probably lack the | |
4669 | * tachometer as well. | |
4670 | * | |
4671 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4672 | * was never fixed by IBM to report the EC firmware version string | |
4673 | * probably support the tachometer (like the early X models), so | |
4674 | * detecting it is quite hard. We need more data to know for sure. | |
4675 | * | |
4676 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4677 | * might result. | |
4678 | * | |
f51d1a39 HMH |
4679 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4680 | * mode. | |
56b6aeb0 HMH |
4681 | * |
4682 | * For firmware bugs, refer to: | |
4683 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4684 | * | |
efa27145 | 4685 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4686 | * ThinkPad X31, X40, X41. Not available in the X60. |
4687 | * | |
4688 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4689 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4690 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4691 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4692 | * | |
4693 | * The speeds are stored on handles | |
4694 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4695 | * | |
4696 | * There are three default speed sets, acessible as handles: | |
4697 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4698 | * | |
4699 | * ACPI DSDT switches which set is in use depending on various | |
4700 | * factors. | |
4701 | * | |
efa27145 | 4702 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4703 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4704 | * but the ACPI tables just mention level 7. | |
4705 | */ | |
4706 | ||
f74a27d4 HMH |
4707 | enum { /* Fan control constants */ |
4708 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4709 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4710 | * 0x84 must be read before 0x85 */ | |
4711 | ||
4712 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4713 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4714 | ||
4715 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4716 | }; | |
4717 | ||
4718 | enum fan_status_access_mode { | |
4719 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4720 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4721 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4722 | }; | |
4723 | ||
4724 | enum fan_control_access_mode { | |
4725 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4726 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4727 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4728 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4729 | }; | |
4730 | ||
4731 | enum fan_control_commands { | |
4732 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4733 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4734 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4735 | * and also watchdog cmd */ | |
4736 | }; | |
4737 | ||
4738 | static int fan_control_allowed; | |
4739 | ||
69ba91cb HMH |
4740 | static enum fan_status_access_mode fan_status_access_mode; |
4741 | static enum fan_control_access_mode fan_control_access_mode; | |
4742 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4743 | |
778b4d74 | 4744 | static u8 fan_control_initial_status; |
fe98a52c | 4745 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4746 | static int fan_watchdog_maxinterval; |
4747 | ||
4748 | static struct mutex fan_mutex; | |
778b4d74 | 4749 | |
25c68a33 | 4750 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4751 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4752 | |
e0c7dfe7 HMH |
4753 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4754 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4755 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4756 | ); /* all others */ | |
e0c7dfe7 | 4757 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4758 | "JFNS", /* 770x-JL */ |
4759 | ); /* all others */ | |
4760 | ||
fe98a52c | 4761 | /* |
b21a15f6 | 4762 | * Call with fan_mutex held |
fe98a52c | 4763 | */ |
b21a15f6 | 4764 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4765 | { |
b21a15f6 HMH |
4766 | if ((status & |
4767 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4768 | if (status > 7) | |
4769 | fan_control_desired_level = 7; | |
4770 | else | |
4771 | fan_control_desired_level = status; | |
4772 | } | |
4773 | } | |
fe98a52c | 4774 | |
b21a15f6 HMH |
4775 | static int fan_get_status(u8 *status) |
4776 | { | |
4777 | u8 s; | |
fe98a52c | 4778 | |
b21a15f6 HMH |
4779 | /* TODO: |
4780 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4781 | |
b21a15f6 HMH |
4782 | switch (fan_status_access_mode) { |
4783 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4784 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4785 | |
b21a15f6 HMH |
4786 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4787 | return -EIO; | |
fe98a52c | 4788 | |
b21a15f6 HMH |
4789 | if (likely(status)) |
4790 | *status = s & 0x07; | |
fe98a52c | 4791 | |
b21a15f6 HMH |
4792 | break; |
4793 | ||
4794 | case TPACPI_FAN_RD_TPEC: | |
4795 | /* all except 570, 600e/x, 770e, 770x */ | |
4796 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4797 | return -EIO; | |
4798 | ||
4799 | if (likely(status)) | |
4800 | *status = s; | |
fe98a52c | 4801 | |
fe98a52c | 4802 | break; |
b21a15f6 | 4803 | |
fe98a52c | 4804 | default: |
b21a15f6 | 4805 | return -ENXIO; |
fe98a52c HMH |
4806 | } |
4807 | ||
b21a15f6 HMH |
4808 | return 0; |
4809 | } | |
fe98a52c | 4810 | |
b21a15f6 HMH |
4811 | static int fan_get_status_safe(u8 *status) |
4812 | { | |
4813 | int rc; | |
4814 | u8 s; | |
fe98a52c | 4815 | |
b21a15f6 HMH |
4816 | if (mutex_lock_interruptible(&fan_mutex)) |
4817 | return -ERESTARTSYS; | |
4818 | rc = fan_get_status(&s); | |
4819 | if (!rc) | |
4820 | fan_update_desired_level(s); | |
4821 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4822 | |
b21a15f6 HMH |
4823 | if (status) |
4824 | *status = s; | |
fe98a52c | 4825 | |
b21a15f6 HMH |
4826 | return rc; |
4827 | } | |
4828 | ||
4829 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4830 | { |
b21a15f6 | 4831 | u8 hi, lo; |
fe98a52c | 4832 | |
b21a15f6 HMH |
4833 | switch (fan_status_access_mode) { |
4834 | case TPACPI_FAN_RD_TPEC: | |
4835 | /* all except 570, 600e/x, 770e, 770x */ | |
4836 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4837 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4838 | return -EIO; | |
fe98a52c | 4839 | |
b21a15f6 HMH |
4840 | if (likely(speed)) |
4841 | *speed = (hi << 8) | lo; | |
fe98a52c | 4842 | |
b21a15f6 | 4843 | break; |
fe98a52c | 4844 | |
b21a15f6 HMH |
4845 | default: |
4846 | return -ENXIO; | |
4847 | } | |
fe98a52c | 4848 | |
b21a15f6 | 4849 | return 0; |
fe98a52c HMH |
4850 | } |
4851 | ||
b21a15f6 | 4852 | static int fan_set_level(int level) |
fe98a52c | 4853 | { |
b21a15f6 HMH |
4854 | if (!fan_control_allowed) |
4855 | return -EPERM; | |
fe98a52c | 4856 | |
b21a15f6 HMH |
4857 | switch (fan_control_access_mode) { |
4858 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4859 | if (level >= 0 && level <= 7) { | |
4860 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4861 | return -EIO; | |
4862 | } else | |
4863 | return -EINVAL; | |
4864 | break; | |
fe98a52c | 4865 | |
b21a15f6 HMH |
4866 | case TPACPI_FAN_WR_ACPI_FANS: |
4867 | case TPACPI_FAN_WR_TPEC: | |
4868 | if ((level != TP_EC_FAN_AUTO) && | |
4869 | (level != TP_EC_FAN_FULLSPEED) && | |
4870 | ((level < 0) || (level > 7))) | |
4871 | return -EINVAL; | |
fe98a52c | 4872 | |
b21a15f6 HMH |
4873 | /* safety net should the EC not support AUTO |
4874 | * or FULLSPEED mode bits and just ignore them */ | |
4875 | if (level & TP_EC_FAN_FULLSPEED) | |
4876 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 4877 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 4878 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 4879 | |
b21a15f6 HMH |
4880 | if (!acpi_ec_write(fan_status_offset, level)) |
4881 | return -EIO; | |
4882 | else | |
4883 | tp_features.fan_ctrl_status_undef = 0; | |
4884 | break; | |
fe98a52c | 4885 | |
b21a15f6 HMH |
4886 | default: |
4887 | return -ENXIO; | |
4888 | } | |
4889 | return 0; | |
fe98a52c HMH |
4890 | } |
4891 | ||
b21a15f6 | 4892 | static int fan_set_level_safe(int level) |
fe98a52c | 4893 | { |
b21a15f6 | 4894 | int rc; |
fe98a52c | 4895 | |
b21a15f6 HMH |
4896 | if (!fan_control_allowed) |
4897 | return -EPERM; | |
fe98a52c | 4898 | |
b21a15f6 HMH |
4899 | if (mutex_lock_interruptible(&fan_mutex)) |
4900 | return -ERESTARTSYS; | |
fe98a52c | 4901 | |
b21a15f6 HMH |
4902 | if (level == TPACPI_FAN_LAST_LEVEL) |
4903 | level = fan_control_desired_level; | |
fe98a52c | 4904 | |
b21a15f6 HMH |
4905 | rc = fan_set_level(level); |
4906 | if (!rc) | |
4907 | fan_update_desired_level(level); | |
4908 | ||
4909 | mutex_unlock(&fan_mutex); | |
4910 | return rc; | |
fe98a52c HMH |
4911 | } |
4912 | ||
b21a15f6 | 4913 | static int fan_set_enable(void) |
fe98a52c | 4914 | { |
b21a15f6 HMH |
4915 | u8 s; |
4916 | int rc; | |
fe98a52c | 4917 | |
ecf2a80a HMH |
4918 | if (!fan_control_allowed) |
4919 | return -EPERM; | |
4920 | ||
b21a15f6 HMH |
4921 | if (mutex_lock_interruptible(&fan_mutex)) |
4922 | return -ERESTARTSYS; | |
fe98a52c | 4923 | |
b21a15f6 HMH |
4924 | switch (fan_control_access_mode) { |
4925 | case TPACPI_FAN_WR_ACPI_FANS: | |
4926 | case TPACPI_FAN_WR_TPEC: | |
4927 | rc = fan_get_status(&s); | |
4928 | if (rc < 0) | |
4929 | break; | |
fe98a52c | 4930 | |
b21a15f6 HMH |
4931 | /* Don't go out of emergency fan mode */ |
4932 | if (s != 7) { | |
4933 | s &= 0x07; | |
4934 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4935 | } | |
fe98a52c | 4936 | |
b21a15f6 HMH |
4937 | if (!acpi_ec_write(fan_status_offset, s)) |
4938 | rc = -EIO; | |
4939 | else { | |
4940 | tp_features.fan_ctrl_status_undef = 0; | |
4941 | rc = 0; | |
4942 | } | |
4943 | break; | |
fe98a52c | 4944 | |
b21a15f6 HMH |
4945 | case TPACPI_FAN_WR_ACPI_SFAN: |
4946 | rc = fan_get_status(&s); | |
4947 | if (rc < 0) | |
4948 | break; | |
fe98a52c | 4949 | |
b21a15f6 | 4950 | s &= 0x07; |
fe98a52c | 4951 | |
b21a15f6 HMH |
4952 | /* Set fan to at least level 4 */ |
4953 | s |= 4; | |
fe08bc4b | 4954 | |
b21a15f6 | 4955 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 4956 | rc = -EIO; |
b21a15f6 HMH |
4957 | else |
4958 | rc = 0; | |
4959 | break; | |
78f81cc4 | 4960 | |
b21a15f6 HMH |
4961 | default: |
4962 | rc = -ENXIO; | |
4963 | } | |
5fba344c | 4964 | |
b21a15f6 HMH |
4965 | mutex_unlock(&fan_mutex); |
4966 | return rc; | |
69ba91cb | 4967 | } |
78f81cc4 | 4968 | |
b21a15f6 | 4969 | static int fan_set_disable(void) |
78f81cc4 | 4970 | { |
b21a15f6 | 4971 | int rc; |
c52f0aa5 | 4972 | |
b21a15f6 HMH |
4973 | if (!fan_control_allowed) |
4974 | return -EPERM; | |
78f81cc4 | 4975 | |
b21a15f6 HMH |
4976 | if (mutex_lock_interruptible(&fan_mutex)) |
4977 | return -ERESTARTSYS; | |
3ef8a609 | 4978 | |
b21a15f6 HMH |
4979 | rc = 0; |
4980 | switch (fan_control_access_mode) { | |
4981 | case TPACPI_FAN_WR_ACPI_FANS: | |
4982 | case TPACPI_FAN_WR_TPEC: | |
4983 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
4984 | rc = -EIO; | |
4985 | else { | |
4986 | fan_control_desired_level = 0; | |
4987 | tp_features.fan_ctrl_status_undef = 0; | |
4988 | } | |
3ef8a609 HMH |
4989 | break; |
4990 | ||
b21a15f6 HMH |
4991 | case TPACPI_FAN_WR_ACPI_SFAN: |
4992 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
4993 | rc = -EIO; | |
4994 | else | |
4995 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
4996 | break; |
4997 | ||
4998 | default: | |
b21a15f6 | 4999 | rc = -ENXIO; |
78f81cc4 BD |
5000 | } |
5001 | ||
fe98a52c | 5002 | |
fe98a52c | 5003 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5004 | return rc; |
5005 | } | |
5006 | ||
b21a15f6 | 5007 | static int fan_set_speed(int speed) |
c52f0aa5 | 5008 | { |
b21a15f6 | 5009 | int rc; |
c52f0aa5 | 5010 | |
b21a15f6 HMH |
5011 | if (!fan_control_allowed) |
5012 | return -EPERM; | |
3ef8a609 | 5013 | |
b21a15f6 HMH |
5014 | if (mutex_lock_interruptible(&fan_mutex)) |
5015 | return -ERESTARTSYS; | |
c52f0aa5 | 5016 | |
b21a15f6 HMH |
5017 | rc = 0; |
5018 | switch (fan_control_access_mode) { | |
5019 | case TPACPI_FAN_WR_ACPI_FANS: | |
5020 | if (speed >= 0 && speed <= 65535) { | |
5021 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5022 | speed, speed, speed)) | |
5023 | rc = -EIO; | |
5024 | } else | |
5025 | rc = -EINVAL; | |
c52f0aa5 HMH |
5026 | break; |
5027 | ||
5028 | default: | |
b21a15f6 | 5029 | rc = -ENXIO; |
c52f0aa5 HMH |
5030 | } |
5031 | ||
b21a15f6 HMH |
5032 | mutex_unlock(&fan_mutex); |
5033 | return rc; | |
16663a87 HMH |
5034 | } |
5035 | ||
5036 | static void fan_watchdog_reset(void) | |
5037 | { | |
94954cc6 | 5038 | static int fan_watchdog_active; |
16663a87 | 5039 | |
4985cd0a HMH |
5040 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5041 | return; | |
5042 | ||
16663a87 HMH |
5043 | if (fan_watchdog_active) |
5044 | cancel_delayed_work(&fan_watchdog_task); | |
5045 | ||
8fef502e HMH |
5046 | if (fan_watchdog_maxinterval > 0 && |
5047 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
5048 | fan_watchdog_active = 1; |
5049 | if (!schedule_delayed_work(&fan_watchdog_task, | |
5050 | msecs_to_jiffies(fan_watchdog_maxinterval | |
5051 | * 1000))) { | |
35ff8b9f HMH |
5052 | printk(TPACPI_ERR |
5053 | "failed to schedule the fan watchdog, " | |
16663a87 HMH |
5054 | "watchdog will not trigger\n"); |
5055 | } | |
5056 | } else | |
5057 | fan_watchdog_active = 0; | |
5058 | } | |
5059 | ||
b21a15f6 | 5060 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5061 | { |
b21a15f6 | 5062 | int rc; |
18ad7996 | 5063 | |
b21a15f6 HMH |
5064 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5065 | return; | |
a12095c2 | 5066 | |
e0c7dfe7 | 5067 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5068 | rc = fan_set_enable(); |
5069 | if (rc < 0) { | |
e0c7dfe7 | 5070 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5071 | "will try again later...\n", -rc); |
5072 | /* reschedule for later */ | |
5073 | fan_watchdog_reset(); | |
5074 | } | |
5075 | } | |
eaa7571b | 5076 | |
b21a15f6 HMH |
5077 | /* |
5078 | * SYSFS fan layout: hwmon compatible (device) | |
5079 | * | |
5080 | * pwm*_enable: | |
5081 | * 0: "disengaged" mode | |
5082 | * 1: manual mode | |
5083 | * 2: native EC "auto" mode (recommended, hardware default) | |
5084 | * | |
5085 | * pwm*: set speed in manual mode, ignored otherwise. | |
5086 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5087 | * interpolation. | |
5088 | * | |
5089 | * fan*_input: tachometer reading, RPM | |
5090 | * | |
5091 | * | |
5092 | * SYSFS fan layout: extensions | |
5093 | * | |
5094 | * fan_watchdog (driver): | |
5095 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5096 | */ | |
5097 | ||
5098 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5099 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5100 | struct device_attribute *attr, | |
5101 | char *buf) | |
5102 | { | |
5103 | int res, mode; | |
5104 | u8 status; | |
5105 | ||
5106 | res = fan_get_status_safe(&status); | |
5107 | if (res) | |
5108 | return res; | |
5109 | ||
5110 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5111 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5112 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5113 | } else { |
5114 | /* Return most likely status. In fact, it | |
5115 | * might be the only possible status */ | |
5116 | status = TP_EC_FAN_AUTO; | |
5117 | } | |
5118 | } | |
5119 | ||
5120 | if (status & TP_EC_FAN_FULLSPEED) { | |
5121 | mode = 0; | |
5122 | } else if (status & TP_EC_FAN_AUTO) { | |
5123 | mode = 2; | |
5124 | } else | |
5125 | mode = 1; | |
5126 | ||
5127 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5128 | } | |
a12095c2 | 5129 | |
b21a15f6 HMH |
5130 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5131 | struct device_attribute *attr, | |
5132 | const char *buf, size_t count) | |
5133 | { | |
5134 | unsigned long t; | |
5135 | int res, level; | |
5136 | ||
5137 | if (parse_strtoul(buf, 2, &t)) | |
5138 | return -EINVAL; | |
5139 | ||
5140 | switch (t) { | |
5141 | case 0: | |
5142 | level = TP_EC_FAN_FULLSPEED; | |
5143 | break; | |
5144 | case 1: | |
5145 | level = TPACPI_FAN_LAST_LEVEL; | |
5146 | break; | |
5147 | case 2: | |
5148 | level = TP_EC_FAN_AUTO; | |
5149 | break; | |
5150 | case 3: | |
5151 | /* reserved for software-controlled auto mode */ | |
5152 | return -ENOSYS; | |
18ad7996 | 5153 | default: |
b21a15f6 | 5154 | return -EINVAL; |
18ad7996 | 5155 | } |
b21a15f6 HMH |
5156 | |
5157 | res = fan_set_level_safe(level); | |
5158 | if (res == -ENXIO) | |
5159 | return -EINVAL; | |
5160 | else if (res < 0) | |
5161 | return res; | |
5162 | ||
5163 | fan_watchdog_reset(); | |
5164 | ||
5165 | return count; | |
18ad7996 HMH |
5166 | } |
5167 | ||
b21a15f6 HMH |
5168 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5169 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5170 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5171 | ||
5172 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5173 | static ssize_t fan_pwm1_show(struct device *dev, | |
5174 | struct device_attribute *attr, | |
5175 | char *buf) | |
fe98a52c | 5176 | { |
b21a15f6 HMH |
5177 | int res; |
5178 | u8 status; | |
fe98a52c | 5179 | |
b21a15f6 HMH |
5180 | res = fan_get_status_safe(&status); |
5181 | if (res) | |
5182 | return res; | |
ecf2a80a | 5183 | |
b21a15f6 HMH |
5184 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5185 | if (status != fan_control_initial_status) { | |
5186 | tp_features.fan_ctrl_status_undef = 0; | |
5187 | } else { | |
5188 | status = TP_EC_FAN_AUTO; | |
5189 | } | |
5190 | } | |
fe98a52c | 5191 | |
b21a15f6 HMH |
5192 | if ((status & |
5193 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5194 | status = fan_control_desired_level; | |
fe98a52c | 5195 | |
b21a15f6 HMH |
5196 | if (status > 7) |
5197 | status = 7; | |
fe98a52c | 5198 | |
b21a15f6 | 5199 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5200 | } |
5201 | ||
b21a15f6 HMH |
5202 | static ssize_t fan_pwm1_store(struct device *dev, |
5203 | struct device_attribute *attr, | |
5204 | const char *buf, size_t count) | |
18ad7996 | 5205 | { |
b21a15f6 | 5206 | unsigned long s; |
1c6a334e | 5207 | int rc; |
b21a15f6 | 5208 | u8 status, newlevel; |
1c6a334e | 5209 | |
b21a15f6 HMH |
5210 | if (parse_strtoul(buf, 255, &s)) |
5211 | return -EINVAL; | |
5212 | ||
5213 | /* scale down from 0-255 to 0-7 */ | |
5214 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5215 | |
fc589a3c HMH |
5216 | if (mutex_lock_interruptible(&fan_mutex)) |
5217 | return -ERESTARTSYS; | |
40ca9fdf | 5218 | |
b21a15f6 HMH |
5219 | rc = fan_get_status(&status); |
5220 | if (!rc && (status & | |
5221 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5222 | rc = fan_set_level(newlevel); | |
5223 | if (rc == -ENXIO) | |
5224 | rc = -EINVAL; | |
5225 | else if (!rc) { | |
5226 | fan_update_desired_level(newlevel); | |
5227 | fan_watchdog_reset(); | |
eaa7571b | 5228 | } |
b21a15f6 | 5229 | } |
1c6a334e | 5230 | |
b21a15f6 HMH |
5231 | mutex_unlock(&fan_mutex); |
5232 | return (rc)? rc : count; | |
5233 | } | |
1c6a334e | 5234 | |
b21a15f6 HMH |
5235 | static struct device_attribute dev_attr_fan_pwm1 = |
5236 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5237 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5238 | |
b21a15f6 HMH |
5239 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5240 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5241 | struct device_attribute *attr, | |
5242 | char *buf) | |
5243 | { | |
5244 | int res; | |
5245 | unsigned int speed; | |
1c6a334e | 5246 | |
b21a15f6 HMH |
5247 | res = fan_get_speed(&speed); |
5248 | if (res < 0) | |
5249 | return res; | |
1c6a334e | 5250 | |
b21a15f6 HMH |
5251 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5252 | } | |
18ad7996 | 5253 | |
b21a15f6 HMH |
5254 | static struct device_attribute dev_attr_fan_fan1_input = |
5255 | __ATTR(fan1_input, S_IRUGO, | |
5256 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5257 | |
b21a15f6 HMH |
5258 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5259 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5260 | char *buf) | |
5261 | { | |
5262 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5263 | } |
5264 | ||
b21a15f6 HMH |
5265 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5266 | const char *buf, size_t count) | |
18ad7996 | 5267 | { |
b21a15f6 HMH |
5268 | unsigned long t; |
5269 | ||
5270 | if (parse_strtoul(buf, 120, &t)) | |
5271 | return -EINVAL; | |
40ca9fdf | 5272 | |
ecf2a80a HMH |
5273 | if (!fan_control_allowed) |
5274 | return -EPERM; | |
5275 | ||
b21a15f6 HMH |
5276 | fan_watchdog_maxinterval = t; |
5277 | fan_watchdog_reset(); | |
40ca9fdf | 5278 | |
b21a15f6 HMH |
5279 | return count; |
5280 | } | |
5281 | ||
5282 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5283 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5284 | ||
5285 | /* --------------------------------------------------------------------- */ | |
5286 | static struct attribute *fan_attributes[] = { | |
5287 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5288 | &dev_attr_fan_fan1_input.attr, | |
5289 | NULL | |
5290 | }; | |
5291 | ||
5292 | static const struct attribute_group fan_attr_group = { | |
5293 | .attrs = fan_attributes, | |
5294 | }; | |
5295 | ||
5296 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5297 | { | |
5298 | int rc; | |
5299 | ||
5300 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5301 | ||
5302 | mutex_init(&fan_mutex); | |
5303 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5304 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5305 | fan_control_commands = 0; | |
5306 | fan_watchdog_maxinterval = 0; | |
5307 | tp_features.fan_ctrl_status_undef = 0; | |
5308 | fan_control_desired_level = 7; | |
5309 | ||
e0c7dfe7 HMH |
5310 | TPACPI_ACPIHANDLE_INIT(fans); |
5311 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5312 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5313 | |
5314 | if (gfan_handle) { | |
5315 | /* 570, 600e/x, 770e, 770x */ | |
5316 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5317 | } else { | |
5318 | /* all other ThinkPads: note that even old-style | |
5319 | * ThinkPad ECs supports the fan control register */ | |
5320 | if (likely(acpi_ec_read(fan_status_offset, | |
5321 | &fan_control_initial_status))) { | |
5322 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5323 | ||
5324 | /* In some ThinkPads, neither the EC nor the ACPI | |
5325 | * DSDT initialize the fan status, and it ends up | |
5326 | * being set to 0x07 when it *could* be either | |
5327 | * 0x07 or 0x80. | |
5328 | * | |
5329 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5330 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5331 | * to be buggy. */ | |
5332 | if (fan_control_initial_status == 0x07) { | |
5333 | switch (thinkpad_id.ec_model) { | |
5334 | case 0x5931: /* TP-1Y */ | |
5335 | case 0x3837: /* TP-78 */ | |
5336 | case 0x3637: /* TP-76 */ | |
5337 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5338 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5339 | "fan_init: initial fan status " |
5340 | "is unknown, assuming it is " | |
5341 | "in auto mode\n"); | |
b21a15f6 HMH |
5342 | tp_features.fan_ctrl_status_undef = 1; |
5343 | ;; | |
5344 | } | |
5345 | } | |
5346 | } else { | |
e0c7dfe7 | 5347 | printk(TPACPI_ERR |
b21a15f6 HMH |
5348 | "ThinkPad ACPI EC access misbehaving, " |
5349 | "fan status and control unavailable\n"); | |
5350 | return 1; | |
5351 | } | |
5352 | } | |
5353 | ||
5354 | if (sfan_handle) { | |
5355 | /* 570, 770x-JL */ | |
5356 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5357 | fan_control_commands |= | |
5358 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5359 | } else { | |
5360 | if (!gfan_handle) { | |
5361 | /* gfan without sfan means no fan control */ | |
5362 | /* all other models implement TP EC 0x2f control */ | |
5363 | ||
5364 | if (fans_handle) { | |
5365 | /* X31, X40, X41 */ | |
5366 | fan_control_access_mode = | |
5367 | TPACPI_FAN_WR_ACPI_FANS; | |
5368 | fan_control_commands |= | |
5369 | TPACPI_FAN_CMD_SPEED | | |
5370 | TPACPI_FAN_CMD_LEVEL | | |
5371 | TPACPI_FAN_CMD_ENABLE; | |
5372 | } else { | |
5373 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5374 | fan_control_commands |= | |
5375 | TPACPI_FAN_CMD_LEVEL | | |
5376 | TPACPI_FAN_CMD_ENABLE; | |
5377 | } | |
fe98a52c | 5378 | } |
b21a15f6 | 5379 | } |
18ad7996 | 5380 | |
b21a15f6 HMH |
5381 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5382 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5383 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5384 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5385 | |
b21a15f6 HMH |
5386 | /* fan control master switch */ |
5387 | if (!fan_control_allowed) { | |
5388 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5389 | fan_control_commands = 0; | |
5390 | dbg_printk(TPACPI_DBG_INIT, | |
5391 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5392 | } |
40ca9fdf | 5393 | |
b21a15f6 HMH |
5394 | /* update fan_control_desired_level */ |
5395 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5396 | fan_get_status_safe(NULL); | |
fe98a52c | 5397 | |
b21a15f6 HMH |
5398 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5399 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5400 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5401 | &fan_attr_group); | |
5402 | if (!(rc < 0)) | |
5403 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5404 | &driver_attr_fan_watchdog); | |
5405 | if (rc < 0) | |
5406 | return rc; | |
5407 | return 0; | |
5408 | } else | |
5409 | return 1; | |
56b6aeb0 HMH |
5410 | } |
5411 | ||
b21a15f6 | 5412 | static void fan_exit(void) |
56b6aeb0 | 5413 | { |
35ff8b9f HMH |
5414 | vdbg_printk(TPACPI_DBG_EXIT, |
5415 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5416 | |
b21a15f6 HMH |
5417 | /* FIXME: can we really do this unconditionally? */ |
5418 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5419 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5420 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5421 | |
b21a15f6 HMH |
5422 | cancel_delayed_work(&fan_watchdog_task); |
5423 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5424 | } |
5425 | ||
5426 | static int fan_read(char *p) | |
5427 | { | |
5428 | int len = 0; | |
5429 | int rc; | |
5430 | u8 status; | |
5431 | unsigned int speed = 0; | |
5432 | ||
5433 | switch (fan_status_access_mode) { | |
efa27145 | 5434 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5435 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5436 | rc = fan_get_status_safe(&status); |
5437 | if (rc < 0) | |
56b6aeb0 HMH |
5438 | return rc; |
5439 | ||
5440 | len += sprintf(p + len, "status:\t\t%s\n" | |
5441 | "level:\t\t%d\n", | |
5442 | (status != 0) ? "enabled" : "disabled", status); | |
5443 | break; | |
5444 | ||
efa27145 | 5445 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5446 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5447 | rc = fan_get_status_safe(&status); |
5448 | if (rc < 0) | |
56b6aeb0 HMH |
5449 | return rc; |
5450 | ||
d8fd94d9 | 5451 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5452 | if (status != fan_control_initial_status) |
d8fd94d9 | 5453 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5454 | else |
5455 | /* Return most likely status. In fact, it | |
5456 | * might be the only possible status */ | |
efa27145 | 5457 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5458 | } |
5459 | ||
5460 | len += sprintf(p + len, "status:\t\t%s\n", | |
5461 | (status != 0) ? "enabled" : "disabled"); | |
5462 | ||
35ff8b9f HMH |
5463 | rc = fan_get_speed(&speed); |
5464 | if (rc < 0) | |
56b6aeb0 HMH |
5465 | return rc; |
5466 | ||
5467 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5468 | ||
efa27145 | 5469 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5470 | /* Disengaged mode takes precedence */ |
5471 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5472 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5473 | len += sprintf(p + len, "level:\t\tauto\n"); |
5474 | else | |
5475 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5476 | break; | |
5477 | ||
efa27145 | 5478 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5479 | default: |
5480 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5481 | } | |
5482 | ||
efa27145 | 5483 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5484 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5485 | ||
5486 | switch (fan_control_access_mode) { | |
efa27145 | 5487 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5488 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5489 | break; | |
5490 | ||
5491 | default: | |
5492 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5493 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5494 | break; |
5495 | } | |
5496 | } | |
18ad7996 | 5497 | |
efa27145 | 5498 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5499 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5500 | "commands:\twatchdog <timeout> (<timeout> " |
5501 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5502 | |
efa27145 | 5503 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5504 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5505 | " (<speed> is 0-65535)\n"); | |
5506 | ||
5507 | return len; | |
78f81cc4 BD |
5508 | } |
5509 | ||
18ad7996 HMH |
5510 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5511 | { | |
5512 | int level; | |
5513 | ||
a12095c2 | 5514 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5515 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5516 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5517 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5518 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5519 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5520 | return 0; |
5521 | ||
35ff8b9f HMH |
5522 | *rc = fan_set_level_safe(level); |
5523 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5524 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5525 | "access mode %d", fan_control_access_mode); |
5526 | ||
5527 | return 1; | |
5528 | } | |
5529 | ||
5530 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5531 | { | |
5532 | if (strlencmp(cmd, "enable") != 0) | |
5533 | return 0; | |
5534 | ||
35ff8b9f HMH |
5535 | *rc = fan_set_enable(); |
5536 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5537 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5538 | "access mode %d", fan_control_access_mode); |
5539 | ||
5540 | return 1; | |
5541 | } | |
5542 | ||
5543 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5544 | { | |
5545 | if (strlencmp(cmd, "disable") != 0) | |
5546 | return 0; | |
5547 | ||
35ff8b9f HMH |
5548 | *rc = fan_set_disable(); |
5549 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5550 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5551 | "access mode %d", fan_control_access_mode); |
5552 | ||
5553 | return 1; | |
5554 | } | |
5555 | ||
5556 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5557 | { | |
5558 | int speed; | |
5559 | ||
a8b7a662 HMH |
5560 | /* TODO: |
5561 | * Support speed <low> <medium> <high> ? */ | |
5562 | ||
18ad7996 HMH |
5563 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5564 | return 0; | |
5565 | ||
35ff8b9f HMH |
5566 | *rc = fan_set_speed(speed); |
5567 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5568 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5569 | "access mode %d", fan_control_access_mode); |
5570 | ||
5571 | return 1; | |
5572 | } | |
5573 | ||
16663a87 HMH |
5574 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5575 | { | |
5576 | int interval; | |
5577 | ||
5578 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5579 | return 0; | |
5580 | ||
5581 | if (interval < 0 || interval > 120) | |
5582 | *rc = -EINVAL; | |
5583 | else | |
5584 | fan_watchdog_maxinterval = interval; | |
5585 | ||
5586 | return 1; | |
5587 | } | |
5588 | ||
18ad7996 HMH |
5589 | static int fan_write(char *buf) |
5590 | { | |
5591 | char *cmd; | |
5592 | int rc = 0; | |
5593 | ||
5594 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5595 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5596 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5597 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5598 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5599 | fan_write_cmd_disable(cmd, &rc) || |
5600 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5601 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5602 | fan_write_cmd_speed(cmd, &rc)) |
5603 | ) | |
5604 | rc = -EINVAL; | |
16663a87 HMH |
5605 | else if (!rc) |
5606 | fan_watchdog_reset(); | |
18ad7996 HMH |
5607 | } |
5608 | ||
5609 | return rc; | |
5610 | } | |
5611 | ||
a5763f22 HMH |
5612 | static struct ibm_struct fan_driver_data = { |
5613 | .name = "fan", | |
5614 | .read = fan_read, | |
5615 | .write = fan_write, | |
5616 | .exit = fan_exit, | |
a5763f22 HMH |
5617 | }; |
5618 | ||
56b6aeb0 HMH |
5619 | /**************************************************************************** |
5620 | **************************************************************************** | |
5621 | * | |
5622 | * Infrastructure | |
5623 | * | |
5624 | **************************************************************************** | |
5625 | ****************************************************************************/ | |
5626 | ||
7fd40029 HMH |
5627 | /* sysfs name ---------------------------------------------------------- */ |
5628 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5629 | struct device_attribute *attr, | |
5630 | char *buf) | |
5631 | { | |
e0c7dfe7 | 5632 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5633 | } |
5634 | ||
5635 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5636 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5637 | ||
5638 | /* --------------------------------------------------------------------- */ | |
5639 | ||
56b6aeb0 | 5640 | /* /proc support */ |
94954cc6 | 5641 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5642 | |
56b6aeb0 HMH |
5643 | /* |
5644 | * Module and infrastructure proble, init and exit handling | |
5645 | */ | |
1da177e4 | 5646 | |
b21a15f6 HMH |
5647 | static int force_load; |
5648 | ||
fe08bc4b | 5649 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5650 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5651 | { |
a5763f22 | 5652 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5653 | |
a5763f22 | 5654 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5655 | } |
5656 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5657 | ||
b21a15f6 HMH |
5658 | static void ibm_exit(struct ibm_struct *ibm) |
5659 | { | |
5660 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5661 | ||
5662 | list_del_init(&ibm->all_drivers); | |
5663 | ||
5664 | if (ibm->flags.acpi_notify_installed) { | |
5665 | dbg_printk(TPACPI_DBG_EXIT, | |
5666 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5667 | BUG_ON(!ibm->acpi); | |
5668 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5669 | ibm->acpi->type, | |
5670 | dispatch_acpi_notify); | |
5671 | ibm->flags.acpi_notify_installed = 0; | |
5672 | ibm->flags.acpi_notify_installed = 0; | |
5673 | } | |
5674 | ||
5675 | if (ibm->flags.proc_created) { | |
5676 | dbg_printk(TPACPI_DBG_EXIT, | |
5677 | "%s: remove_proc_entry\n", ibm->name); | |
5678 | remove_proc_entry(ibm->name, proc_dir); | |
5679 | ibm->flags.proc_created = 0; | |
5680 | } | |
5681 | ||
5682 | if (ibm->flags.acpi_driver_registered) { | |
5683 | dbg_printk(TPACPI_DBG_EXIT, | |
5684 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5685 | BUG_ON(!ibm->acpi); | |
5686 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5687 | kfree(ibm->acpi->driver); | |
5688 | ibm->acpi->driver = NULL; | |
5689 | ibm->flags.acpi_driver_registered = 0; | |
5690 | } | |
5691 | ||
5692 | if (ibm->flags.init_called && ibm->exit) { | |
5693 | ibm->exit(); | |
5694 | ibm->flags.init_called = 0; | |
5695 | } | |
5696 | ||
5697 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5698 | } | |
f74a27d4 | 5699 | |
a5763f22 | 5700 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5701 | { |
5702 | int ret; | |
a5763f22 | 5703 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5704 | struct proc_dir_entry *entry; |
5705 | ||
a5763f22 HMH |
5706 | BUG_ON(ibm == NULL); |
5707 | ||
5708 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5709 | ||
92641177 | 5710 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5711 | return 0; |
5712 | ||
fe08bc4b HMH |
5713 | dbg_printk(TPACPI_DBG_INIT, |
5714 | "probing for %s\n", ibm->name); | |
5715 | ||
a5763f22 HMH |
5716 | if (iibm->init) { |
5717 | ret = iibm->init(iibm); | |
5fba344c HMH |
5718 | if (ret > 0) |
5719 | return 0; /* probe failed */ | |
5720 | if (ret) | |
1da177e4 | 5721 | return ret; |
a5763f22 | 5722 | |
92641177 | 5723 | ibm->flags.init_called = 1; |
1da177e4 LT |
5724 | } |
5725 | ||
8d376cd6 HMH |
5726 | if (ibm->acpi) { |
5727 | if (ibm->acpi->hid) { | |
5728 | ret = register_tpacpi_subdriver(ibm); | |
5729 | if (ret) | |
5730 | goto err_out; | |
5731 | } | |
5fba344c | 5732 | |
8d376cd6 HMH |
5733 | if (ibm->acpi->notify) { |
5734 | ret = setup_acpi_notify(ibm); | |
5735 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5736 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5737 | ibm->name); |
5738 | ret = 0; | |
5739 | goto err_out; | |
5740 | } | |
5741 | if (ret < 0) | |
5742 | goto err_out; | |
5fba344c | 5743 | } |
5fba344c HMH |
5744 | } |
5745 | ||
fe08bc4b HMH |
5746 | dbg_printk(TPACPI_DBG_INIT, |
5747 | "%s installed\n", ibm->name); | |
5748 | ||
78f81cc4 BD |
5749 | if (ibm->read) { |
5750 | entry = create_proc_entry(ibm->name, | |
5751 | S_IFREG | S_IRUGO | S_IWUSR, | |
5752 | proc_dir); | |
5753 | if (!entry) { | |
e0c7dfe7 | 5754 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5755 | ibm->name); |
5fba344c HMH |
5756 | ret = -ENODEV; |
5757 | goto err_out; | |
78f81cc4 BD |
5758 | } |
5759 | entry->owner = THIS_MODULE; | |
5760 | entry->data = ibm; | |
8d376cd6 | 5761 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5762 | if (ibm->write) |
8d376cd6 | 5763 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5764 | ibm->flags.proc_created = 1; |
78f81cc4 | 5765 | } |
1da177e4 | 5766 | |
a5763f22 HMH |
5767 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5768 | ||
1da177e4 | 5769 | return 0; |
5fba344c HMH |
5770 | |
5771 | err_out: | |
fe08bc4b HMH |
5772 | dbg_printk(TPACPI_DBG_INIT, |
5773 | "%s: at error exit path with result %d\n", | |
5774 | ibm->name, ret); | |
5775 | ||
5fba344c HMH |
5776 | ibm_exit(ibm); |
5777 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5778 | } |
5779 | ||
56b6aeb0 HMH |
5780 | /* Probing */ |
5781 | ||
d5a2f2f1 | 5782 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5783 | { |
1855256c | 5784 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5785 | char ec_fw_string[18]; |
1da177e4 | 5786 | |
d5a2f2f1 HMH |
5787 | if (!tp) |
5788 | return; | |
5789 | ||
5790 | memset(tp, 0, sizeof(*tp)); | |
5791 | ||
5792 | if (dmi_name_in_vendors("IBM")) | |
5793 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5794 | else if (dmi_name_in_vendors("LENOVO")) | |
5795 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5796 | else | |
5797 | return; | |
5798 | ||
5799 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5800 | GFP_KERNEL); | |
5801 | if (!tp->bios_version_str) | |
5802 | return; | |
5803 | tp->bios_model = tp->bios_version_str[0] | |
5804 | | (tp->bios_version_str[1] << 8); | |
5805 | ||
56b6aeb0 HMH |
5806 | /* |
5807 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5808 | * X32 or newer, all Z series; Some models must have an | |
5809 | * up-to-date BIOS or they will not be detected. | |
5810 | * | |
5811 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5812 | */ | |
5813 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5814 | if (sscanf(dev->name, | |
5815 | "IBM ThinkPad Embedded Controller -[%17c", | |
5816 | ec_fw_string) == 1) { | |
5817 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5818 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5819 | |
5820 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5821 | tp->ec_model = ec_fw_string[0] | |
5822 | | (ec_fw_string[1] << 8); | |
5823 | break; | |
78f81cc4 | 5824 | } |
1da177e4 | 5825 | } |
d5a2f2f1 HMH |
5826 | |
5827 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5828 | GFP_KERNEL); | |
5829 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5830 | kfree(tp->model_str); | |
5831 | tp->model_str = NULL; | |
5832 | } | |
1da177e4 LT |
5833 | } |
5834 | ||
5fba344c HMH |
5835 | static int __init probe_for_thinkpad(void) |
5836 | { | |
5837 | int is_thinkpad; | |
5838 | ||
5839 | if (acpi_disabled) | |
5840 | return -ENODEV; | |
5841 | ||
5842 | /* | |
5843 | * Non-ancient models have better DMI tagging, but very old models | |
5844 | * don't. | |
5845 | */ | |
d5a2f2f1 | 5846 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5847 | |
5848 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 5849 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5850 | if (!ec_handle) { |
5851 | if (is_thinkpad) | |
e0c7dfe7 | 5852 | printk(TPACPI_ERR |
5fba344c HMH |
5853 | "Not yet supported ThinkPad detected!\n"); |
5854 | return -ENODEV; | |
5855 | } | |
5856 | ||
0dcef77c HMH |
5857 | /* |
5858 | * Risks a regression on very old machines, but reduces potential | |
5859 | * false positives a damn great deal | |
5860 | */ | |
5861 | if (!is_thinkpad) | |
d5a2f2f1 | 5862 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5863 | |
5864 | if (!is_thinkpad && !force_load) | |
5865 | return -ENODEV; | |
5866 | ||
5fba344c HMH |
5867 | return 0; |
5868 | } | |
5869 | ||
5870 | ||
56b6aeb0 | 5871 | /* Module init, exit, parameters */ |
1da177e4 | 5872 | |
a5763f22 HMH |
5873 | static struct ibm_init_struct ibms_init[] __initdata = { |
5874 | { | |
5875 | .init = thinkpad_acpi_driver_init, | |
5876 | .data = &thinkpad_acpi_driver_data, | |
5877 | }, | |
5878 | { | |
5879 | .init = hotkey_init, | |
5880 | .data = &hotkey_driver_data, | |
5881 | }, | |
5882 | { | |
5883 | .init = bluetooth_init, | |
5884 | .data = &bluetooth_driver_data, | |
5885 | }, | |
5886 | { | |
5887 | .init = wan_init, | |
5888 | .data = &wan_driver_data, | |
5889 | }, | |
d7c1d17d | 5890 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
5891 | { |
5892 | .init = video_init, | |
5893 | .data = &video_driver_data, | |
5894 | }, | |
d7c1d17d | 5895 | #endif |
a5763f22 HMH |
5896 | { |
5897 | .init = light_init, | |
5898 | .data = &light_driver_data, | |
5899 | }, | |
5900 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5901 | { | |
5902 | .init = dock_init, | |
5903 | .data = &dock_driver_data[0], | |
5904 | }, | |
5905 | { | |
d94a7f16 | 5906 | .init = dock_init2, |
a5763f22 HMH |
5907 | .data = &dock_driver_data[1], |
5908 | }, | |
5909 | #endif | |
5910 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5911 | { | |
5912 | .init = bay_init, | |
5913 | .data = &bay_driver_data, | |
5914 | }, | |
5915 | #endif | |
5916 | { | |
5917 | .init = cmos_init, | |
5918 | .data = &cmos_driver_data, | |
5919 | }, | |
5920 | { | |
5921 | .init = led_init, | |
5922 | .data = &led_driver_data, | |
5923 | }, | |
5924 | { | |
5925 | .init = beep_init, | |
5926 | .data = &beep_driver_data, | |
5927 | }, | |
5928 | { | |
5929 | .init = thermal_init, | |
5930 | .data = &thermal_driver_data, | |
5931 | }, | |
5932 | { | |
5933 | .data = &ecdump_driver_data, | |
5934 | }, | |
5935 | { | |
5936 | .init = brightness_init, | |
5937 | .data = &brightness_driver_data, | |
5938 | }, | |
5939 | { | |
5940 | .data = &volume_driver_data, | |
5941 | }, | |
5942 | { | |
5943 | .init = fan_init, | |
5944 | .data = &fan_driver_data, | |
5945 | }, | |
5946 | }; | |
5947 | ||
3945ac36 | 5948 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5949 | { |
5950 | unsigned int i; | |
a5763f22 | 5951 | struct ibm_struct *ibm; |
1da177e4 | 5952 | |
59f91ff1 HMH |
5953 | if (!kp || !kp->name || !val) |
5954 | return -EINVAL; | |
5955 | ||
a5763f22 HMH |
5956 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5957 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5958 | WARN_ON(ibm == NULL); |
5959 | ||
5960 | if (!ibm || !ibm->name) | |
5961 | continue; | |
a5763f22 HMH |
5962 | |
5963 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5964 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5965 | return -ENOSPC; |
a5763f22 HMH |
5966 | strcpy(ibms_init[i].param, val); |
5967 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5968 | return 0; |
5969 | } | |
a5763f22 | 5970 | } |
1da177e4 | 5971 | |
1da177e4 LT |
5972 | return -EINVAL; |
5973 | } | |
5974 | ||
56b6aeb0 | 5975 | module_param(experimental, int, 0); |
f68080f8 | 5976 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 5977 | "Enables experimental features when non-zero"); |
56b6aeb0 | 5978 | |
132ce091 | 5979 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 5980 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 5981 | |
86cc9445 | 5982 | module_param(force_load, bool, 0); |
f68080f8 | 5983 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
5984 | "Attempts to load the driver even on a " |
5985 | "mis-identified ThinkPad when true"); | |
0dcef77c | 5986 | |
86cc9445 | 5987 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 5988 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 5989 | "Enables setting fan parameters features when true"); |
ecf2a80a | 5990 | |
24d3b774 | 5991 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 5992 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
5993 | "Selects brightness control strategy: " |
5994 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 5995 | |
87cc537a | 5996 | module_param(brightness_enable, uint, 0); |
f68080f8 | 5997 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 5998 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 5999 | |
ff80f137 | 6000 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6001 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6002 | "used for backwards compatibility with userspace, " |
6003 | "see documentation"); | |
ff80f137 | 6004 | |
e0c7dfe7 | 6005 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6006 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6007 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6008 | "at module load, see documentation") |
1da177e4 | 6009 | |
e0c7dfe7 HMH |
6010 | TPACPI_PARAM(hotkey); |
6011 | TPACPI_PARAM(bluetooth); | |
6012 | TPACPI_PARAM(video); | |
6013 | TPACPI_PARAM(light); | |
85998248 | 6014 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6015 | TPACPI_PARAM(dock); |
63e5f248 | 6016 | #endif |
85998248 | 6017 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6018 | TPACPI_PARAM(bay); |
85998248 | 6019 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6020 | TPACPI_PARAM(cmos); |
6021 | TPACPI_PARAM(led); | |
6022 | TPACPI_PARAM(beep); | |
6023 | TPACPI_PARAM(ecdump); | |
6024 | TPACPI_PARAM(brightness); | |
6025 | TPACPI_PARAM(volume); | |
6026 | TPACPI_PARAM(fan); | |
78f81cc4 | 6027 | |
b21a15f6 HMH |
6028 | static void thinkpad_acpi_module_exit(void) |
6029 | { | |
6030 | struct ibm_struct *ibm, *itmp; | |
6031 | ||
6032 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6033 | ||
6034 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6035 | &tpacpi_all_drivers, | |
6036 | all_drivers) { | |
6037 | ibm_exit(ibm); | |
6038 | } | |
6039 | ||
6040 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6041 | ||
6042 | if (tpacpi_inputdev) { | |
6043 | if (tp_features.input_device_registered) | |
6044 | input_unregister_device(tpacpi_inputdev); | |
6045 | else | |
6046 | input_free_device(tpacpi_inputdev); | |
6047 | } | |
6048 | ||
6049 | if (tpacpi_hwmon) | |
6050 | hwmon_device_unregister(tpacpi_hwmon); | |
6051 | ||
6052 | if (tp_features.sensors_pdev_attrs_registered) | |
6053 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6054 | &dev_attr_thinkpad_acpi_pdev_name); | |
6055 | if (tpacpi_sensors_pdev) | |
6056 | platform_device_unregister(tpacpi_sensors_pdev); | |
6057 | if (tpacpi_pdev) | |
6058 | platform_device_unregister(tpacpi_pdev); | |
6059 | ||
6060 | if (tp_features.sensors_pdrv_attrs_registered) | |
6061 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6062 | if (tp_features.platform_drv_attrs_registered) | |
6063 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6064 | ||
6065 | if (tp_features.sensors_pdrv_registered) | |
6066 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6067 | ||
6068 | if (tp_features.platform_drv_registered) | |
6069 | platform_driver_unregister(&tpacpi_pdriver); | |
6070 | ||
6071 | if (proc_dir) | |
e0c7dfe7 | 6072 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
6073 | |
6074 | kfree(thinkpad_id.bios_version_str); | |
6075 | kfree(thinkpad_id.ec_version_str); | |
6076 | kfree(thinkpad_id.model_str); | |
6077 | } | |
6078 | ||
f74a27d4 | 6079 | |
1def7115 | 6080 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6081 | { |
6082 | int ret, i; | |
6083 | ||
8fef502e HMH |
6084 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6085 | ||
ff80f137 HMH |
6086 | /* Parameter checking */ |
6087 | if (hotkey_report_mode > 2) | |
6088 | return -EINVAL; | |
6089 | ||
54ae1501 | 6090 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6091 | |
6092 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6093 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6094 | if (ret) { |
6095 | thinkpad_acpi_module_exit(); | |
5fba344c | 6096 | return ret; |
d5a2f2f1 | 6097 | } |
1da177e4 | 6098 | |
54ae1501 | 6099 | /* Driver initialization */ |
d5a2f2f1 | 6100 | |
e0c7dfe7 HMH |
6101 | TPACPI_ACPIHANDLE_INIT(ecrd); |
6102 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6103 | |
e0c7dfe7 | 6104 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 6105 | if (!proc_dir) { |
35ff8b9f HMH |
6106 | printk(TPACPI_ERR |
6107 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 6108 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6109 | return -ENODEV; |
6110 | } | |
6111 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6112 | |
54ae1501 HMH |
6113 | ret = platform_driver_register(&tpacpi_pdriver); |
6114 | if (ret) { | |
35ff8b9f HMH |
6115 | printk(TPACPI_ERR |
6116 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
6117 | thinkpad_acpi_module_exit(); |
6118 | return ret; | |
6119 | } | |
ac36393d HMH |
6120 | tp_features.platform_drv_registered = 1; |
6121 | ||
7fd40029 HMH |
6122 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6123 | if (ret) { | |
35ff8b9f HMH |
6124 | printk(TPACPI_ERR |
6125 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
6126 | thinkpad_acpi_module_exit(); |
6127 | return ret; | |
6128 | } | |
6129 | tp_features.sensors_pdrv_registered = 1; | |
6130 | ||
176750d6 | 6131 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6132 | if (!ret) { |
6133 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
6134 | ret = tpacpi_create_driver_attributes( |
6135 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 6136 | } |
176750d6 | 6137 | if (ret) { |
35ff8b9f HMH |
6138 | printk(TPACPI_ERR |
6139 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
6140 | thinkpad_acpi_module_exit(); |
6141 | return ret; | |
6142 | } | |
2369cc94 | 6143 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6144 | |
54ae1501 HMH |
6145 | |
6146 | /* Device initialization */ | |
e0c7dfe7 | 6147 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
6148 | NULL, 0); |
6149 | if (IS_ERR(tpacpi_pdev)) { | |
6150 | ret = PTR_ERR(tpacpi_pdev); | |
6151 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 6152 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
6153 | thinkpad_acpi_module_exit(); |
6154 | return ret; | |
6155 | } | |
7fd40029 | 6156 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
6157 | TPACPI_HWMON_DRVR_NAME, |
6158 | -1, NULL, 0); | |
7fd40029 HMH |
6159 | if (IS_ERR(tpacpi_sensors_pdev)) { |
6160 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6161 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
6162 | printk(TPACPI_ERR |
6163 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
6164 | thinkpad_acpi_module_exit(); |
6165 | return ret; | |
6166 | } | |
6167 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6168 | &dev_attr_thinkpad_acpi_pdev_name); | |
6169 | if (ret) { | |
e0c7dfe7 | 6170 | printk(TPACPI_ERR |
35ff8b9f | 6171 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
6172 | thinkpad_acpi_module_exit(); |
6173 | return ret; | |
6174 | } | |
6175 | tp_features.sensors_pdev_attrs_registered = 1; | |
6176 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6177 | if (IS_ERR(tpacpi_hwmon)) { |
6178 | ret = PTR_ERR(tpacpi_hwmon); | |
6179 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 6180 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
6181 | thinkpad_acpi_module_exit(); |
6182 | return ret; | |
6183 | } | |
8523ed6f | 6184 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6185 | tpacpi_inputdev = input_allocate_device(); |
6186 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 6187 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
6188 | thinkpad_acpi_module_exit(); |
6189 | return -ENOMEM; | |
6190 | } else { | |
6191 | /* Prepare input device, but don't register */ | |
6192 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 6193 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 6194 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
6195 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6196 | thinkpad_id.vendor : | |
6197 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6198 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6199 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6200 | } | |
a5763f22 HMH |
6201 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6202 | ret = ibm_init(&ibms_init[i]); | |
6203 | if (ret >= 0 && *ibms_init[i].param) | |
6204 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6205 | if (ret < 0) { |
1def7115 | 6206 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6207 | return ret; |
6208 | } | |
6209 | } | |
7f5d1cd6 HMH |
6210 | ret = input_register_device(tpacpi_inputdev); |
6211 | if (ret < 0) { | |
e0c7dfe7 | 6212 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6213 | thinkpad_acpi_module_exit(); |
6214 | return ret; | |
6215 | } else { | |
6216 | tp_features.input_device_registered = 1; | |
6217 | } | |
1da177e4 | 6218 | |
8fef502e | 6219 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6220 | return 0; |
6221 | } | |
6222 | ||
f68080f8 HMH |
6223 | /* Please remove this in year 2009 */ |
6224 | MODULE_ALIAS("ibm_acpi"); | |
6225 | ||
6226 | /* | |
6227 | * DMI matching for module autoloading | |
6228 | * | |
6229 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6230 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6231 | * | |
6232 | * Only models listed in thinkwiki will be supported, so add yours | |
6233 | * if it is not there yet. | |
6234 | */ | |
6235 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6236 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6237 | ||
6238 | /* Non-ancient thinkpads */ | |
6239 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6240 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6241 | ||
6242 | /* Ancient thinkpad BIOSes have to be identified by | |
6243 | * BIOS type or model number, and there are far less | |
6244 | * BIOS types than model numbers... */ | |
6245 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6246 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6247 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6248 | ||
6249 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6250 | MODULE_DESCRIPTION(TPACPI_DESC); |
6251 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6252 | MODULE_LICENSE("GPL"); |
6253 | ||
1def7115 HMH |
6254 | module_init(thinkpad_acpi_module_init); |
6255 | module_exit(thinkpad_acpi_module_exit); |