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745a5d21 CC |
1 | /* |
2 | * Acer WMI Laptop Extras | |
3 | * | |
4f0175dc | 4 | * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk> |
745a5d21 CC |
5 | * |
6 | * Based on acer_acpi: | |
7 | * Copyright (C) 2005-2007 E.M. Smith | |
8 | * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | */ | |
24 | ||
745a5d21 CC |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/dmi.h> | |
f2b585b4 | 30 | #include <linux/fb.h> |
745a5d21 CC |
31 | #include <linux/backlight.h> |
32 | #include <linux/leds.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/acpi.h> | |
35 | #include <linux/i8042.h> | |
0606e1ab CC |
36 | #include <linux/rfkill.h> |
37 | #include <linux/workqueue.h> | |
81143522 | 38 | #include <linux/debugfs.h> |
745a5d21 CC |
39 | |
40 | #include <acpi/acpi_drivers.h> | |
41 | ||
42 | MODULE_AUTHOR("Carlos Corbacho"); | |
43 | MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
46 | #define ACER_LOGPREFIX "acer-wmi: " | |
47 | #define ACER_ERR KERN_ERR ACER_LOGPREFIX | |
48 | #define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX | |
49 | #define ACER_INFO KERN_INFO ACER_LOGPREFIX | |
50 | ||
51 | /* | |
52 | * The following defines quirks to get some specific functions to work | |
53 | * which are known to not be supported over ACPI-WMI (such as the mail LED | |
54 | * on WMID based Acer's) | |
55 | */ | |
56 | struct acer_quirks { | |
57 | const char *vendor; | |
58 | const char *model; | |
59 | u16 quirks; | |
60 | }; | |
61 | ||
62 | /* | |
63 | * Magic Number | |
64 | * Meaning is unknown - this number is required for writing to ACPI for AMW0 | |
65 | * (it's also used in acerhk when directly accessing the BIOS) | |
66 | */ | |
67 | #define ACER_AMW0_WRITE 0x9610 | |
68 | ||
69 | /* | |
70 | * Bit masks for the AMW0 interface | |
71 | */ | |
72 | #define ACER_AMW0_WIRELESS_MASK 0x35 | |
73 | #define ACER_AMW0_BLUETOOTH_MASK 0x34 | |
74 | #define ACER_AMW0_MAILLED_MASK 0x31 | |
75 | ||
76 | /* | |
77 | * Method IDs for WMID interface | |
78 | */ | |
79 | #define ACER_WMID_GET_WIRELESS_METHODID 1 | |
80 | #define ACER_WMID_GET_BLUETOOTH_METHODID 2 | |
81 | #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 | |
82 | #define ACER_WMID_SET_WIRELESS_METHODID 4 | |
83 | #define ACER_WMID_SET_BLUETOOTH_METHODID 5 | |
84 | #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 | |
85 | #define ACER_WMID_GET_THREEG_METHODID 10 | |
86 | #define ACER_WMID_SET_THREEG_METHODID 11 | |
87 | ||
88 | /* | |
89 | * Acer ACPI method GUIDs | |
90 | */ | |
91 | #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" | |
5753dd53 | 92 | #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" |
745a5d21 CC |
93 | #define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3" |
94 | #define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A" | |
95 | ||
96 | MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); | |
97 | MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"); | |
98 | ||
745a5d21 CC |
99 | /* |
100 | * Interface capability flags | |
101 | */ | |
102 | #define ACER_CAP_MAILLED (1<<0) | |
103 | #define ACER_CAP_WIRELESS (1<<1) | |
104 | #define ACER_CAP_BLUETOOTH (1<<2) | |
105 | #define ACER_CAP_BRIGHTNESS (1<<3) | |
106 | #define ACER_CAP_THREEG (1<<4) | |
107 | #define ACER_CAP_ANY (0xFFFFFFFF) | |
108 | ||
109 | /* | |
110 | * Interface type flags | |
111 | */ | |
112 | enum interface_flags { | |
113 | ACER_AMW0, | |
114 | ACER_AMW0_V2, | |
115 | ACER_WMID, | |
116 | }; | |
117 | ||
118 | #define ACER_DEFAULT_WIRELESS 0 | |
119 | #define ACER_DEFAULT_BLUETOOTH 0 | |
120 | #define ACER_DEFAULT_MAILLED 0 | |
121 | #define ACER_DEFAULT_THREEG 0 | |
122 | ||
123 | static int max_brightness = 0xF; | |
124 | ||
745a5d21 CC |
125 | static int mailled = -1; |
126 | static int brightness = -1; | |
127 | static int threeg = -1; | |
128 | static int force_series; | |
129 | ||
130 | module_param(mailled, int, 0444); | |
745a5d21 CC |
131 | module_param(brightness, int, 0444); |
132 | module_param(threeg, int, 0444); | |
133 | module_param(force_series, int, 0444); | |
745a5d21 CC |
134 | MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); |
135 | MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); | |
136 | MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); | |
137 | MODULE_PARM_DESC(force_series, "Force a different laptop series"); | |
138 | ||
139 | struct acer_data { | |
140 | int mailled; | |
745a5d21 CC |
141 | int threeg; |
142 | int brightness; | |
143 | }; | |
144 | ||
81143522 CC |
145 | struct acer_debug { |
146 | struct dentry *root; | |
147 | struct dentry *devices; | |
148 | u32 wmid_devices; | |
149 | }; | |
150 | ||
0606e1ab CC |
151 | static struct rfkill *wireless_rfkill; |
152 | static struct rfkill *bluetooth_rfkill; | |
153 | ||
745a5d21 CC |
154 | /* Each low-level interface must define at least some of the following */ |
155 | struct wmi_interface { | |
156 | /* The WMI device type */ | |
157 | u32 type; | |
158 | ||
159 | /* The capabilities this interface provides */ | |
160 | u32 capability; | |
161 | ||
162 | /* Private data for the current interface */ | |
163 | struct acer_data data; | |
81143522 CC |
164 | |
165 | /* debugfs entries associated with this interface */ | |
166 | struct acer_debug debug; | |
745a5d21 CC |
167 | }; |
168 | ||
169 | /* The static interface pointer, points to the currently detected interface */ | |
170 | static struct wmi_interface *interface; | |
171 | ||
172 | /* | |
173 | * Embedded Controller quirks | |
174 | * Some laptops require us to directly access the EC to either enable or query | |
175 | * features that are not available through WMI. | |
176 | */ | |
177 | ||
178 | struct quirk_entry { | |
179 | u8 wireless; | |
180 | u8 mailled; | |
9991d9f2 | 181 | s8 brightness; |
745a5d21 CC |
182 | u8 bluetooth; |
183 | }; | |
184 | ||
185 | static struct quirk_entry *quirks; | |
186 | ||
187 | static void set_quirks(void) | |
188 | { | |
83097aca AV |
189 | if (!interface) |
190 | return; | |
191 | ||
745a5d21 CC |
192 | if (quirks->mailled) |
193 | interface->capability |= ACER_CAP_MAILLED; | |
194 | ||
195 | if (quirks->brightness) | |
196 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
197 | } | |
198 | ||
199 | static int dmi_matched(const struct dmi_system_id *dmi) | |
200 | { | |
201 | quirks = dmi->driver_data; | |
202 | return 0; | |
203 | } | |
204 | ||
205 | static struct quirk_entry quirk_unknown = { | |
206 | }; | |
207 | ||
9991d9f2 CC |
208 | static struct quirk_entry quirk_acer_aspire_1520 = { |
209 | .brightness = -1, | |
210 | }; | |
211 | ||
745a5d21 CC |
212 | static struct quirk_entry quirk_acer_travelmate_2490 = { |
213 | .mailled = 1, | |
214 | }; | |
215 | ||
216 | /* This AMW0 laptop has no bluetooth */ | |
217 | static struct quirk_entry quirk_medion_md_98300 = { | |
218 | .wireless = 1, | |
219 | }; | |
220 | ||
6f061ab5 CC |
221 | static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { |
222 | .wireless = 2, | |
223 | }; | |
224 | ||
a74dd5fd CC |
225 | /* The Aspire One has a dummy ACPI-WMI interface - disable it */ |
226 | static struct dmi_system_id __devinitdata acer_blacklist[] = { | |
227 | { | |
228 | .ident = "Acer Aspire One (SSD)", | |
229 | .matches = { | |
230 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
231 | DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), | |
232 | }, | |
233 | }, | |
234 | { | |
235 | .ident = "Acer Aspire One (HDD)", | |
236 | .matches = { | |
237 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
238 | DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), | |
239 | }, | |
240 | }, | |
241 | {} | |
242 | }; | |
243 | ||
745a5d21 | 244 | static struct dmi_system_id acer_quirks[] = { |
9991d9f2 CC |
245 | { |
246 | .callback = dmi_matched, | |
247 | .ident = "Acer Aspire 1360", | |
248 | .matches = { | |
249 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
250 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), | |
251 | }, | |
252 | .driver_data = &quirk_acer_aspire_1520, | |
253 | }, | |
254 | { | |
255 | .callback = dmi_matched, | |
256 | .ident = "Acer Aspire 1520", | |
257 | .matches = { | |
258 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
259 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), | |
260 | }, | |
261 | .driver_data = &quirk_acer_aspire_1520, | |
262 | }, | |
745a5d21 CC |
263 | { |
264 | .callback = dmi_matched, | |
265 | .ident = "Acer Aspire 3100", | |
266 | .matches = { | |
267 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
268 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), | |
269 | }, | |
270 | .driver_data = &quirk_acer_travelmate_2490, | |
271 | }, | |
ed9cfe98 CC |
272 | { |
273 | .callback = dmi_matched, | |
274 | .ident = "Acer Aspire 3610", | |
275 | .matches = { | |
276 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
277 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), | |
278 | }, | |
279 | .driver_data = &quirk_acer_travelmate_2490, | |
280 | }, | |
745a5d21 CC |
281 | { |
282 | .callback = dmi_matched, | |
283 | .ident = "Acer Aspire 5100", | |
284 | .matches = { | |
285 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
286 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), | |
287 | }, | |
288 | .driver_data = &quirk_acer_travelmate_2490, | |
289 | }, | |
ed9cfe98 CC |
290 | { |
291 | .callback = dmi_matched, | |
292 | .ident = "Acer Aspire 5610", | |
293 | .matches = { | |
294 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
295 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), | |
296 | }, | |
297 | .driver_data = &quirk_acer_travelmate_2490, | |
298 | }, | |
745a5d21 CC |
299 | { |
300 | .callback = dmi_matched, | |
301 | .ident = "Acer Aspire 5630", | |
302 | .matches = { | |
303 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
304 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), | |
305 | }, | |
306 | .driver_data = &quirk_acer_travelmate_2490, | |
307 | }, | |
308 | { | |
309 | .callback = dmi_matched, | |
310 | .ident = "Acer Aspire 5650", | |
311 | .matches = { | |
312 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
313 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), | |
314 | }, | |
315 | .driver_data = &quirk_acer_travelmate_2490, | |
316 | }, | |
317 | { | |
318 | .callback = dmi_matched, | |
319 | .ident = "Acer Aspire 5680", | |
320 | .matches = { | |
321 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
322 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), | |
323 | }, | |
324 | .driver_data = &quirk_acer_travelmate_2490, | |
325 | }, | |
326 | { | |
327 | .callback = dmi_matched, | |
328 | .ident = "Acer Aspire 9110", | |
329 | .matches = { | |
330 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
331 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), | |
332 | }, | |
333 | .driver_data = &quirk_acer_travelmate_2490, | |
334 | }, | |
335 | { | |
336 | .callback = dmi_matched, | |
337 | .ident = "Acer TravelMate 2490", | |
338 | .matches = { | |
339 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
340 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), | |
341 | }, | |
342 | .driver_data = &quirk_acer_travelmate_2490, | |
343 | }, | |
262ee35b CC |
344 | { |
345 | .callback = dmi_matched, | |
346 | .ident = "Acer TravelMate 4200", | |
347 | .matches = { | |
348 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
349 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), | |
350 | }, | |
351 | .driver_data = &quirk_acer_travelmate_2490, | |
352 | }, | |
6f061ab5 CC |
353 | { |
354 | .callback = dmi_matched, | |
355 | .ident = "Fujitsu Siemens Amilo Li 1718", | |
356 | .matches = { | |
357 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
358 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), | |
359 | }, | |
360 | .driver_data = &quirk_fujitsu_amilo_li_1718, | |
361 | }, | |
745a5d21 CC |
362 | { |
363 | .callback = dmi_matched, | |
364 | .ident = "Medion MD 98300", | |
365 | .matches = { | |
366 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), | |
367 | DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), | |
368 | }, | |
369 | .driver_data = &quirk_medion_md_98300, | |
370 | }, | |
371 | {} | |
372 | }; | |
373 | ||
374 | /* Find which quirks are needed for a particular vendor/ model pair */ | |
375 | static void find_quirks(void) | |
376 | { | |
377 | if (!force_series) { | |
378 | dmi_check_system(acer_quirks); | |
379 | } else if (force_series == 2490) { | |
380 | quirks = &quirk_acer_travelmate_2490; | |
381 | } | |
382 | ||
383 | if (quirks == NULL) | |
384 | quirks = &quirk_unknown; | |
385 | ||
386 | set_quirks(); | |
387 | } | |
388 | ||
389 | /* | |
390 | * General interface convenience methods | |
391 | */ | |
392 | ||
393 | static bool has_cap(u32 cap) | |
394 | { | |
395 | if ((interface->capability & cap) != 0) | |
396 | return 1; | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | /* | |
402 | * AMW0 (V1) interface | |
403 | */ | |
404 | struct wmab_args { | |
405 | u32 eax; | |
406 | u32 ebx; | |
407 | u32 ecx; | |
408 | u32 edx; | |
409 | }; | |
410 | ||
411 | struct wmab_ret { | |
412 | u32 eax; | |
413 | u32 ebx; | |
414 | u32 ecx; | |
415 | u32 edx; | |
416 | u32 eex; | |
417 | }; | |
418 | ||
419 | static acpi_status wmab_execute(struct wmab_args *regbuf, | |
420 | struct acpi_buffer *result) | |
421 | { | |
422 | struct acpi_buffer input; | |
423 | acpi_status status; | |
424 | input.length = sizeof(struct wmab_args); | |
425 | input.pointer = (u8 *)regbuf; | |
426 | ||
427 | status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); | |
428 | ||
429 | return status; | |
430 | } | |
431 | ||
432 | static acpi_status AMW0_get_u32(u32 *value, u32 cap, | |
433 | struct wmi_interface *iface) | |
434 | { | |
435 | int err; | |
436 | u8 result; | |
437 | ||
438 | switch (cap) { | |
439 | case ACER_CAP_MAILLED: | |
440 | switch (quirks->mailled) { | |
441 | default: | |
442 | err = ec_read(0xA, &result); | |
443 | if (err) | |
444 | return AE_ERROR; | |
445 | *value = (result >> 7) & 0x1; | |
446 | return AE_OK; | |
447 | } | |
448 | break; | |
449 | case ACER_CAP_WIRELESS: | |
450 | switch (quirks->wireless) { | |
451 | case 1: | |
452 | err = ec_read(0x7B, &result); | |
453 | if (err) | |
454 | return AE_ERROR; | |
455 | *value = result & 0x1; | |
456 | return AE_OK; | |
6f061ab5 CC |
457 | case 2: |
458 | err = ec_read(0x71, &result); | |
459 | if (err) | |
460 | return AE_ERROR; | |
461 | *value = result & 0x1; | |
462 | return AE_OK; | |
745a5d21 CC |
463 | default: |
464 | err = ec_read(0xA, &result); | |
465 | if (err) | |
466 | return AE_ERROR; | |
467 | *value = (result >> 2) & 0x1; | |
468 | return AE_OK; | |
469 | } | |
470 | break; | |
471 | case ACER_CAP_BLUETOOTH: | |
472 | switch (quirks->bluetooth) { | |
473 | default: | |
474 | err = ec_read(0xA, &result); | |
475 | if (err) | |
476 | return AE_ERROR; | |
477 | *value = (result >> 4) & 0x1; | |
478 | return AE_OK; | |
479 | } | |
480 | break; | |
481 | case ACER_CAP_BRIGHTNESS: | |
482 | switch (quirks->brightness) { | |
483 | default: | |
484 | err = ec_read(0x83, &result); | |
485 | if (err) | |
486 | return AE_ERROR; | |
487 | *value = result; | |
488 | return AE_OK; | |
489 | } | |
490 | break; | |
491 | default: | |
08237974 | 492 | return AE_ERROR; |
745a5d21 CC |
493 | } |
494 | return AE_OK; | |
495 | } | |
496 | ||
497 | static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface) | |
498 | { | |
499 | struct wmab_args args; | |
500 | ||
501 | args.eax = ACER_AMW0_WRITE; | |
502 | args.ebx = value ? (1<<8) : 0; | |
503 | args.ecx = args.edx = 0; | |
504 | ||
505 | switch (cap) { | |
506 | case ACER_CAP_MAILLED: | |
507 | if (value > 1) | |
508 | return AE_BAD_PARAMETER; | |
509 | args.ebx |= ACER_AMW0_MAILLED_MASK; | |
510 | break; | |
511 | case ACER_CAP_WIRELESS: | |
512 | if (value > 1) | |
513 | return AE_BAD_PARAMETER; | |
514 | args.ebx |= ACER_AMW0_WIRELESS_MASK; | |
515 | break; | |
516 | case ACER_CAP_BLUETOOTH: | |
517 | if (value > 1) | |
518 | return AE_BAD_PARAMETER; | |
519 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; | |
520 | break; | |
521 | case ACER_CAP_BRIGHTNESS: | |
522 | if (value > max_brightness) | |
523 | return AE_BAD_PARAMETER; | |
524 | switch (quirks->brightness) { | |
745a5d21 | 525 | default: |
4609d029 CC |
526 | return ec_write(0x83, value); |
527 | break; | |
745a5d21 CC |
528 | } |
529 | default: | |
08237974 | 530 | return AE_ERROR; |
745a5d21 CC |
531 | } |
532 | ||
533 | /* Actually do the set */ | |
534 | return wmab_execute(&args, NULL); | |
535 | } | |
536 | ||
537 | static acpi_status AMW0_find_mailled(void) | |
538 | { | |
539 | struct wmab_args args; | |
540 | struct wmab_ret ret; | |
541 | acpi_status status = AE_OK; | |
542 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; | |
543 | union acpi_object *obj; | |
544 | ||
545 | args.eax = 0x86; | |
546 | args.ebx = args.ecx = args.edx = 0; | |
547 | ||
548 | status = wmab_execute(&args, &out); | |
549 | if (ACPI_FAILURE(status)) | |
550 | return status; | |
551 | ||
552 | obj = (union acpi_object *) out.pointer; | |
553 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
554 | obj->buffer.length == sizeof(struct wmab_ret)) { | |
555 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
556 | } else { | |
557 | return AE_ERROR; | |
558 | } | |
559 | ||
560 | if (ret.eex & 0x1) | |
561 | interface->capability |= ACER_CAP_MAILLED; | |
562 | ||
563 | kfree(out.pointer); | |
564 | ||
565 | return AE_OK; | |
566 | } | |
567 | ||
568 | static acpi_status AMW0_set_capabilities(void) | |
569 | { | |
570 | struct wmab_args args; | |
571 | struct wmab_ret ret; | |
572 | acpi_status status = AE_OK; | |
573 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; | |
574 | union acpi_object *obj; | |
575 | ||
5753dd53 CC |
576 | /* |
577 | * On laptops with this strange GUID (non Acer), normal probing doesn't | |
578 | * work. | |
579 | */ | |
580 | if (wmi_has_guid(AMW0_GUID2)) { | |
581 | interface->capability |= ACER_CAP_WIRELESS; | |
582 | return AE_OK; | |
583 | } | |
584 | ||
745a5d21 CC |
585 | args.eax = ACER_AMW0_WRITE; |
586 | args.ecx = args.edx = 0; | |
587 | ||
588 | args.ebx = 0xa2 << 8; | |
589 | args.ebx |= ACER_AMW0_WIRELESS_MASK; | |
590 | ||
591 | status = wmab_execute(&args, &out); | |
592 | if (ACPI_FAILURE(status)) | |
593 | return status; | |
594 | ||
595 | obj = (union acpi_object *) out.pointer; | |
596 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
597 | obj->buffer.length == sizeof(struct wmab_ret)) { | |
598 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
599 | } else { | |
600 | return AE_ERROR; | |
601 | } | |
602 | ||
603 | if (ret.eax & 0x1) | |
604 | interface->capability |= ACER_CAP_WIRELESS; | |
605 | ||
606 | args.ebx = 2 << 8; | |
607 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; | |
608 | ||
609 | status = wmab_execute(&args, &out); | |
610 | if (ACPI_FAILURE(status)) | |
611 | return status; | |
612 | ||
613 | obj = (union acpi_object *) out.pointer; | |
614 | if (obj && obj->type == ACPI_TYPE_BUFFER | |
615 | && obj->buffer.length == sizeof(struct wmab_ret)) { | |
616 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
617 | } else { | |
618 | return AE_ERROR; | |
619 | } | |
620 | ||
621 | if (ret.eax & 0x1) | |
622 | interface->capability |= ACER_CAP_BLUETOOTH; | |
623 | ||
624 | kfree(out.pointer); | |
625 | ||
626 | /* | |
627 | * This appears to be safe to enable, since all Wistron based laptops | |
628 | * appear to use the same EC register for brightness, even if they | |
629 | * differ for wireless, etc | |
630 | */ | |
9991d9f2 CC |
631 | if (quirks->brightness >= 0) |
632 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
745a5d21 CC |
633 | |
634 | return AE_OK; | |
635 | } | |
636 | ||
637 | static struct wmi_interface AMW0_interface = { | |
638 | .type = ACER_AMW0, | |
639 | }; | |
640 | ||
641 | static struct wmi_interface AMW0_V2_interface = { | |
642 | .type = ACER_AMW0_V2, | |
643 | }; | |
644 | ||
645 | /* | |
646 | * New interface (The WMID interface) | |
647 | */ | |
648 | static acpi_status | |
649 | WMI_execute_u32(u32 method_id, u32 in, u32 *out) | |
650 | { | |
651 | struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; | |
652 | struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; | |
653 | union acpi_object *obj; | |
654 | u32 tmp; | |
655 | acpi_status status; | |
656 | ||
657 | status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); | |
658 | ||
659 | if (ACPI_FAILURE(status)) | |
660 | return status; | |
661 | ||
662 | obj = (union acpi_object *) result.pointer; | |
663 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
664 | obj->buffer.length == sizeof(u32)) { | |
665 | tmp = *((u32 *) obj->buffer.pointer); | |
666 | } else { | |
667 | tmp = 0; | |
668 | } | |
669 | ||
670 | if (out) | |
671 | *out = tmp; | |
672 | ||
673 | kfree(result.pointer); | |
674 | ||
675 | return status; | |
676 | } | |
677 | ||
678 | static acpi_status WMID_get_u32(u32 *value, u32 cap, | |
679 | struct wmi_interface *iface) | |
680 | { | |
681 | acpi_status status; | |
682 | u8 tmp; | |
683 | u32 result, method_id = 0; | |
684 | ||
685 | switch (cap) { | |
686 | case ACER_CAP_WIRELESS: | |
687 | method_id = ACER_WMID_GET_WIRELESS_METHODID; | |
688 | break; | |
689 | case ACER_CAP_BLUETOOTH: | |
690 | method_id = ACER_WMID_GET_BLUETOOTH_METHODID; | |
691 | break; | |
692 | case ACER_CAP_BRIGHTNESS: | |
693 | method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; | |
694 | break; | |
695 | case ACER_CAP_THREEG: | |
696 | method_id = ACER_WMID_GET_THREEG_METHODID; | |
697 | break; | |
698 | case ACER_CAP_MAILLED: | |
699 | if (quirks->mailled == 1) { | |
700 | ec_read(0x9f, &tmp); | |
701 | *value = tmp & 0x1; | |
702 | return 0; | |
703 | } | |
704 | default: | |
08237974 | 705 | return AE_ERROR; |
745a5d21 CC |
706 | } |
707 | status = WMI_execute_u32(method_id, 0, &result); | |
708 | ||
709 | if (ACPI_SUCCESS(status)) | |
710 | *value = (u8)result; | |
711 | ||
712 | return status; | |
713 | } | |
714 | ||
715 | static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface) | |
716 | { | |
717 | u32 method_id = 0; | |
718 | char param; | |
719 | ||
720 | switch (cap) { | |
721 | case ACER_CAP_BRIGHTNESS: | |
722 | if (value > max_brightness) | |
723 | return AE_BAD_PARAMETER; | |
724 | method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; | |
725 | break; | |
726 | case ACER_CAP_WIRELESS: | |
727 | if (value > 1) | |
728 | return AE_BAD_PARAMETER; | |
729 | method_id = ACER_WMID_SET_WIRELESS_METHODID; | |
730 | break; | |
731 | case ACER_CAP_BLUETOOTH: | |
732 | if (value > 1) | |
733 | return AE_BAD_PARAMETER; | |
734 | method_id = ACER_WMID_SET_BLUETOOTH_METHODID; | |
735 | break; | |
736 | case ACER_CAP_THREEG: | |
737 | if (value > 1) | |
738 | return AE_BAD_PARAMETER; | |
739 | method_id = ACER_WMID_SET_THREEG_METHODID; | |
740 | break; | |
741 | case ACER_CAP_MAILLED: | |
742 | if (value > 1) | |
743 | return AE_BAD_PARAMETER; | |
744 | if (quirks->mailled == 1) { | |
745 | param = value ? 0x92 : 0x93; | |
181d683d | 746 | i8042_lock_chip(); |
745a5d21 | 747 | i8042_command(¶m, 0x1059); |
181d683d | 748 | i8042_unlock_chip(); |
745a5d21 CC |
749 | return 0; |
750 | } | |
751 | break; | |
752 | default: | |
08237974 | 753 | return AE_ERROR; |
745a5d21 CC |
754 | } |
755 | return WMI_execute_u32(method_id, (u32)value, NULL); | |
756 | } | |
757 | ||
758 | static acpi_status WMID_set_capabilities(void) | |
759 | { | |
760 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; | |
761 | union acpi_object *obj; | |
762 | acpi_status status; | |
763 | u32 devices; | |
764 | ||
765 | status = wmi_query_block(WMID_GUID2, 1, &out); | |
766 | if (ACPI_FAILURE(status)) | |
767 | return status; | |
768 | ||
769 | obj = (union acpi_object *) out.pointer; | |
770 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
771 | obj->buffer.length == sizeof(u32)) { | |
772 | devices = *((u32 *) obj->buffer.pointer); | |
773 | } else { | |
774 | return AE_ERROR; | |
775 | } | |
776 | ||
777 | /* Not sure on the meaning of the relevant bits yet to detect these */ | |
778 | interface->capability |= ACER_CAP_WIRELESS; | |
779 | interface->capability |= ACER_CAP_THREEG; | |
780 | ||
781 | /* WMID always provides brightness methods */ | |
782 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
783 | ||
784 | if (devices & 0x10) | |
785 | interface->capability |= ACER_CAP_BLUETOOTH; | |
786 | ||
787 | if (!(devices & 0x20)) | |
788 | max_brightness = 0x9; | |
789 | ||
790 | return status; | |
791 | } | |
792 | ||
793 | static struct wmi_interface wmid_interface = { | |
794 | .type = ACER_WMID, | |
795 | }; | |
796 | ||
797 | /* | |
798 | * Generic Device (interface-independent) | |
799 | */ | |
800 | ||
801 | static acpi_status get_u32(u32 *value, u32 cap) | |
802 | { | |
08237974 | 803 | acpi_status status = AE_ERROR; |
745a5d21 CC |
804 | |
805 | switch (interface->type) { | |
806 | case ACER_AMW0: | |
807 | status = AMW0_get_u32(value, cap, interface); | |
808 | break; | |
809 | case ACER_AMW0_V2: | |
810 | if (cap == ACER_CAP_MAILLED) { | |
811 | status = AMW0_get_u32(value, cap, interface); | |
812 | break; | |
813 | } | |
814 | case ACER_WMID: | |
815 | status = WMID_get_u32(value, cap, interface); | |
816 | break; | |
817 | } | |
818 | ||
819 | return status; | |
820 | } | |
821 | ||
822 | static acpi_status set_u32(u32 value, u32 cap) | |
823 | { | |
5c742b45 CC |
824 | acpi_status status; |
825 | ||
745a5d21 CC |
826 | if (interface->capability & cap) { |
827 | switch (interface->type) { | |
828 | case ACER_AMW0: | |
829 | return AMW0_set_u32(value, cap, interface); | |
830 | case ACER_AMW0_V2: | |
5c742b45 CC |
831 | if (cap == ACER_CAP_MAILLED) |
832 | return AMW0_set_u32(value, cap, interface); | |
833 | ||
834 | /* | |
835 | * On some models, some WMID methods don't toggle | |
836 | * properly. For those cases, we want to run the AMW0 | |
837 | * method afterwards to be certain we've really toggled | |
838 | * the device state. | |
839 | */ | |
840 | if (cap == ACER_CAP_WIRELESS || | |
841 | cap == ACER_CAP_BLUETOOTH) { | |
842 | status = WMID_set_u32(value, cap, interface); | |
843 | if (ACPI_FAILURE(status)) | |
844 | return status; | |
845 | ||
846 | return AMW0_set_u32(value, cap, interface); | |
847 | } | |
745a5d21 CC |
848 | case ACER_WMID: |
849 | return WMID_set_u32(value, cap, interface); | |
850 | default: | |
851 | return AE_BAD_PARAMETER; | |
852 | } | |
853 | } | |
854 | return AE_BAD_PARAMETER; | |
855 | } | |
856 | ||
857 | static void __init acer_commandline_init(void) | |
858 | { | |
859 | /* | |
860 | * These will all fail silently if the value given is invalid, or the | |
861 | * capability isn't available on the given interface | |
862 | */ | |
863 | set_u32(mailled, ACER_CAP_MAILLED); | |
745a5d21 CC |
864 | set_u32(threeg, ACER_CAP_THREEG); |
865 | set_u32(brightness, ACER_CAP_BRIGHTNESS); | |
866 | } | |
867 | ||
868 | /* | |
869 | * LED device (Mail LED only, no other LEDs known yet) | |
870 | */ | |
871 | static void mail_led_set(struct led_classdev *led_cdev, | |
872 | enum led_brightness value) | |
873 | { | |
874 | set_u32(value, ACER_CAP_MAILLED); | |
875 | } | |
876 | ||
877 | static struct led_classdev mail_led = { | |
343c0042 | 878 | .name = "acer-wmi::mail", |
745a5d21 CC |
879 | .brightness_set = mail_led_set, |
880 | }; | |
881 | ||
7560e385 | 882 | static int __devinit acer_led_init(struct device *dev) |
745a5d21 CC |
883 | { |
884 | return led_classdev_register(dev, &mail_led); | |
885 | } | |
886 | ||
887 | static void acer_led_exit(void) | |
888 | { | |
889 | led_classdev_unregister(&mail_led); | |
890 | } | |
891 | ||
892 | /* | |
893 | * Backlight device | |
894 | */ | |
895 | static struct backlight_device *acer_backlight_device; | |
896 | ||
897 | static int read_brightness(struct backlight_device *bd) | |
898 | { | |
899 | u32 value; | |
900 | get_u32(&value, ACER_CAP_BRIGHTNESS); | |
901 | return value; | |
902 | } | |
903 | ||
904 | static int update_bl_status(struct backlight_device *bd) | |
905 | { | |
f2b585b4 CC |
906 | int intensity = bd->props.brightness; |
907 | ||
908 | if (bd->props.power != FB_BLANK_UNBLANK) | |
909 | intensity = 0; | |
910 | if (bd->props.fb_blank != FB_BLANK_UNBLANK) | |
911 | intensity = 0; | |
912 | ||
913 | set_u32(intensity, ACER_CAP_BRIGHTNESS); | |
914 | ||
745a5d21 CC |
915 | return 0; |
916 | } | |
917 | ||
918 | static struct backlight_ops acer_bl_ops = { | |
919 | .get_brightness = read_brightness, | |
920 | .update_status = update_bl_status, | |
921 | }; | |
922 | ||
7560e385 | 923 | static int __devinit acer_backlight_init(struct device *dev) |
745a5d21 | 924 | { |
a19a6ee6 | 925 | struct backlight_properties props; |
745a5d21 CC |
926 | struct backlight_device *bd; |
927 | ||
a19a6ee6 MG |
928 | memset(&props, 0, sizeof(struct backlight_properties)); |
929 | props.max_brightness = max_brightness; | |
930 | bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops, | |
931 | &props); | |
745a5d21 CC |
932 | if (IS_ERR(bd)) { |
933 | printk(ACER_ERR "Could not register Acer backlight device\n"); | |
934 | acer_backlight_device = NULL; | |
935 | return PTR_ERR(bd); | |
936 | } | |
937 | ||
938 | acer_backlight_device = bd; | |
939 | ||
f2b585b4 | 940 | bd->props.power = FB_BLANK_UNBLANK; |
6f6ef82c | 941 | bd->props.brightness = read_brightness(bd); |
745a5d21 CC |
942 | backlight_update_status(bd); |
943 | return 0; | |
944 | } | |
945 | ||
7560e385 | 946 | static void acer_backlight_exit(void) |
745a5d21 CC |
947 | { |
948 | backlight_device_unregister(acer_backlight_device); | |
949 | } | |
950 | ||
0606e1ab CC |
951 | /* |
952 | * Rfkill devices | |
953 | */ | |
0606e1ab CC |
954 | static void acer_rfkill_update(struct work_struct *ignored); |
955 | static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update); | |
956 | static void acer_rfkill_update(struct work_struct *ignored) | |
957 | { | |
958 | u32 state; | |
959 | acpi_status status; | |
960 | ||
961 | status = get_u32(&state, ACER_CAP_WIRELESS); | |
962 | if (ACPI_SUCCESS(status)) | |
a878417c | 963 | rfkill_set_sw_state(wireless_rfkill, !state); |
0606e1ab CC |
964 | |
965 | if (has_cap(ACER_CAP_BLUETOOTH)) { | |
966 | status = get_u32(&state, ACER_CAP_BLUETOOTH); | |
967 | if (ACPI_SUCCESS(status)) | |
a878417c | 968 | rfkill_set_sw_state(bluetooth_rfkill, !state); |
0606e1ab CC |
969 | } |
970 | ||
ae3a1b46 | 971 | schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ)); |
0606e1ab CC |
972 | } |
973 | ||
19d337df | 974 | static int acer_rfkill_set(void *data, bool blocked) |
0606e1ab CC |
975 | { |
976 | acpi_status status; | |
19d337df | 977 | u32 cap = (unsigned long)data; |
ed5c8ef3 | 978 | status = set_u32(!blocked, cap); |
0606e1ab CC |
979 | if (ACPI_FAILURE(status)) |
980 | return -ENODEV; | |
981 | return 0; | |
982 | } | |
983 | ||
19d337df JB |
984 | static const struct rfkill_ops acer_rfkill_ops = { |
985 | .set_block = acer_rfkill_set, | |
986 | }; | |
987 | ||
988 | static struct rfkill *acer_rfkill_register(struct device *dev, | |
989 | enum rfkill_type type, | |
990 | char *name, u32 cap) | |
0606e1ab CC |
991 | { |
992 | int err; | |
0606e1ab CC |
993 | struct rfkill *rfkill_dev; |
994 | ||
19d337df JB |
995 | rfkill_dev = rfkill_alloc(name, dev, type, |
996 | &acer_rfkill_ops, | |
997 | (void *)(unsigned long)cap); | |
0606e1ab CC |
998 | if (!rfkill_dev) |
999 | return ERR_PTR(-ENOMEM); | |
0606e1ab CC |
1000 | |
1001 | err = rfkill_register(rfkill_dev); | |
1002 | if (err) { | |
19d337df | 1003 | rfkill_destroy(rfkill_dev); |
0606e1ab CC |
1004 | return ERR_PTR(err); |
1005 | } | |
1006 | return rfkill_dev; | |
1007 | } | |
1008 | ||
1009 | static int acer_rfkill_init(struct device *dev) | |
1010 | { | |
1011 | wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN, | |
1012 | "acer-wireless", ACER_CAP_WIRELESS); | |
1013 | if (IS_ERR(wireless_rfkill)) | |
1014 | return PTR_ERR(wireless_rfkill); | |
1015 | ||
1016 | if (has_cap(ACER_CAP_BLUETOOTH)) { | |
1017 | bluetooth_rfkill = acer_rfkill_register(dev, | |
1018 | RFKILL_TYPE_BLUETOOTH, "acer-bluetooth", | |
1019 | ACER_CAP_BLUETOOTH); | |
1020 | if (IS_ERR(bluetooth_rfkill)) { | |
0606e1ab | 1021 | rfkill_unregister(wireless_rfkill); |
19d337df | 1022 | rfkill_destroy(wireless_rfkill); |
0606e1ab CC |
1023 | return PTR_ERR(bluetooth_rfkill); |
1024 | } | |
1025 | } | |
1026 | ||
ae3a1b46 | 1027 | schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ)); |
0606e1ab CC |
1028 | |
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | static void acer_rfkill_exit(void) | |
1033 | { | |
1034 | cancel_delayed_work_sync(&acer_rfkill_work); | |
19d337df | 1035 | |
0606e1ab | 1036 | rfkill_unregister(wireless_rfkill); |
19d337df JB |
1037 | rfkill_destroy(wireless_rfkill); |
1038 | ||
0606e1ab | 1039 | if (has_cap(ACER_CAP_BLUETOOTH)) { |
0606e1ab | 1040 | rfkill_unregister(bluetooth_rfkill); |
19d337df | 1041 | rfkill_destroy(bluetooth_rfkill); |
0606e1ab CC |
1042 | } |
1043 | return; | |
1044 | } | |
1045 | ||
745a5d21 | 1046 | /* |
7d9a06de | 1047 | * sysfs interface |
745a5d21 | 1048 | */ |
7d9a06de CC |
1049 | static ssize_t show_bool_threeg(struct device *dev, |
1050 | struct device_attribute *attr, char *buf) | |
1051 | { | |
745a5d21 | 1052 | u32 result; \ |
7d9a06de CC |
1053 | acpi_status status = get_u32(&result, ACER_CAP_THREEG); |
1054 | if (ACPI_SUCCESS(status)) | |
1055 | return sprintf(buf, "%u\n", result); | |
1056 | return sprintf(buf, "Read error\n"); | |
1057 | } | |
1058 | ||
1059 | static ssize_t set_bool_threeg(struct device *dev, | |
1060 | struct device_attribute *attr, const char *buf, size_t count) | |
1061 | { | |
1062 | u32 tmp = simple_strtoul(buf, NULL, 10); | |
1063 | acpi_status status = set_u32(tmp, ACER_CAP_THREEG); | |
1064 | if (ACPI_FAILURE(status)) | |
1065 | return -EINVAL; | |
1066 | return count; | |
1067 | } | |
1068 | static DEVICE_ATTR(threeg, S_IWUGO | S_IRUGO | S_IWUSR, show_bool_threeg, | |
1069 | set_bool_threeg); | |
745a5d21 | 1070 | |
745a5d21 CC |
1071 | static ssize_t show_interface(struct device *dev, struct device_attribute *attr, |
1072 | char *buf) | |
1073 | { | |
1074 | switch (interface->type) { | |
1075 | case ACER_AMW0: | |
1076 | return sprintf(buf, "AMW0\n"); | |
1077 | case ACER_AMW0_V2: | |
1078 | return sprintf(buf, "AMW0 v2\n"); | |
1079 | case ACER_WMID: | |
1080 | return sprintf(buf, "WMID\n"); | |
1081 | default: | |
1082 | return sprintf(buf, "Error!\n"); | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR, | |
1087 | show_interface, NULL); | |
1088 | ||
81143522 CC |
1089 | /* |
1090 | * debugfs functions | |
1091 | */ | |
1092 | static u32 get_wmid_devices(void) | |
1093 | { | |
1094 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; | |
1095 | union acpi_object *obj; | |
1096 | acpi_status status; | |
1097 | ||
1098 | status = wmi_query_block(WMID_GUID2, 1, &out); | |
1099 | if (ACPI_FAILURE(status)) | |
1100 | return 0; | |
1101 | ||
1102 | obj = (union acpi_object *) out.pointer; | |
1103 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
1104 | obj->buffer.length == sizeof(u32)) { | |
1105 | return *((u32 *) obj->buffer.pointer); | |
1106 | } else { | |
1107 | return 0; | |
1108 | } | |
1109 | } | |
1110 | ||
745a5d21 CC |
1111 | /* |
1112 | * Platform device | |
1113 | */ | |
1114 | static int __devinit acer_platform_probe(struct platform_device *device) | |
1115 | { | |
1116 | int err; | |
1117 | ||
1118 | if (has_cap(ACER_CAP_MAILLED)) { | |
1119 | err = acer_led_init(&device->dev); | |
1120 | if (err) | |
1121 | goto error_mailled; | |
1122 | } | |
1123 | ||
1124 | if (has_cap(ACER_CAP_BRIGHTNESS)) { | |
1125 | err = acer_backlight_init(&device->dev); | |
1126 | if (err) | |
1127 | goto error_brightness; | |
1128 | } | |
1129 | ||
0606e1ab | 1130 | err = acer_rfkill_init(&device->dev); |
350e3290 AW |
1131 | if (err) |
1132 | goto error_rfkill; | |
0606e1ab CC |
1133 | |
1134 | return err; | |
745a5d21 | 1135 | |
350e3290 AW |
1136 | error_rfkill: |
1137 | if (has_cap(ACER_CAP_BRIGHTNESS)) | |
1138 | acer_backlight_exit(); | |
745a5d21 | 1139 | error_brightness: |
350e3290 AW |
1140 | if (has_cap(ACER_CAP_MAILLED)) |
1141 | acer_led_exit(); | |
745a5d21 CC |
1142 | error_mailled: |
1143 | return err; | |
1144 | } | |
1145 | ||
1146 | static int acer_platform_remove(struct platform_device *device) | |
1147 | { | |
1148 | if (has_cap(ACER_CAP_MAILLED)) | |
1149 | acer_led_exit(); | |
1150 | if (has_cap(ACER_CAP_BRIGHTNESS)) | |
1151 | acer_backlight_exit(); | |
0606e1ab CC |
1152 | |
1153 | acer_rfkill_exit(); | |
745a5d21 CC |
1154 | return 0; |
1155 | } | |
1156 | ||
1157 | static int acer_platform_suspend(struct platform_device *dev, | |
1158 | pm_message_t state) | |
1159 | { | |
1160 | u32 value; | |
1161 | struct acer_data *data = &interface->data; | |
1162 | ||
1163 | if (!data) | |
1164 | return -ENOMEM; | |
1165 | ||
745a5d21 CC |
1166 | if (has_cap(ACER_CAP_MAILLED)) { |
1167 | get_u32(&value, ACER_CAP_MAILLED); | |
1168 | data->mailled = value; | |
1169 | } | |
1170 | ||
1171 | if (has_cap(ACER_CAP_BRIGHTNESS)) { | |
1172 | get_u32(&value, ACER_CAP_BRIGHTNESS); | |
1173 | data->brightness = value; | |
1174 | } | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | static int acer_platform_resume(struct platform_device *device) | |
1180 | { | |
1181 | struct acer_data *data = &interface->data; | |
1182 | ||
1183 | if (!data) | |
1184 | return -ENOMEM; | |
1185 | ||
745a5d21 CC |
1186 | if (has_cap(ACER_CAP_MAILLED)) |
1187 | set_u32(data->mailled, ACER_CAP_MAILLED); | |
1188 | ||
1189 | if (has_cap(ACER_CAP_BRIGHTNESS)) | |
1190 | set_u32(data->brightness, ACER_CAP_BRIGHTNESS); | |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | static struct platform_driver acer_platform_driver = { | |
1196 | .driver = { | |
1197 | .name = "acer-wmi", | |
1198 | .owner = THIS_MODULE, | |
1199 | }, | |
1200 | .probe = acer_platform_probe, | |
1201 | .remove = acer_platform_remove, | |
1202 | .suspend = acer_platform_suspend, | |
1203 | .resume = acer_platform_resume, | |
1204 | }; | |
1205 | ||
1206 | static struct platform_device *acer_platform_device; | |
1207 | ||
1208 | static int remove_sysfs(struct platform_device *device) | |
1209 | { | |
745a5d21 CC |
1210 | if (has_cap(ACER_CAP_THREEG)) |
1211 | device_remove_file(&device->dev, &dev_attr_threeg); | |
1212 | ||
1213 | device_remove_file(&device->dev, &dev_attr_interface); | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static int create_sysfs(void) | |
1219 | { | |
1220 | int retval = -ENOMEM; | |
1221 | ||
745a5d21 CC |
1222 | if (has_cap(ACER_CAP_THREEG)) { |
1223 | retval = device_create_file(&acer_platform_device->dev, | |
1224 | &dev_attr_threeg); | |
1225 | if (retval) | |
1226 | goto error_sysfs; | |
1227 | } | |
1228 | ||
1229 | retval = device_create_file(&acer_platform_device->dev, | |
1230 | &dev_attr_interface); | |
1231 | if (retval) | |
1232 | goto error_sysfs; | |
1233 | ||
1234 | return 0; | |
1235 | ||
1236 | error_sysfs: | |
1237 | remove_sysfs(acer_platform_device); | |
1238 | return retval; | |
1239 | } | |
1240 | ||
81143522 CC |
1241 | static void remove_debugfs(void) |
1242 | { | |
1243 | debugfs_remove(interface->debug.devices); | |
1244 | debugfs_remove(interface->debug.root); | |
1245 | } | |
1246 | ||
1247 | static int create_debugfs(void) | |
1248 | { | |
1249 | interface->debug.root = debugfs_create_dir("acer-wmi", NULL); | |
1250 | if (!interface->debug.root) { | |
1251 | printk(ACER_ERR "Failed to create debugfs directory"); | |
1252 | return -ENOMEM; | |
1253 | } | |
1254 | ||
1255 | interface->debug.devices = debugfs_create_u32("devices", S_IRUGO, | |
1256 | interface->debug.root, | |
1257 | &interface->debug.wmid_devices); | |
1258 | if (!interface->debug.devices) | |
1259 | goto error_debugfs; | |
1260 | ||
1261 | return 0; | |
1262 | ||
1263 | error_debugfs: | |
39dbbb45 | 1264 | remove_debugfs(); |
81143522 CC |
1265 | return -ENOMEM; |
1266 | } | |
1267 | ||
745a5d21 CC |
1268 | static int __init acer_wmi_init(void) |
1269 | { | |
1270 | int err; | |
1271 | ||
860f0c6b | 1272 | printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n"); |
745a5d21 | 1273 | |
a74dd5fd CC |
1274 | if (dmi_check_system(acer_blacklist)) { |
1275 | printk(ACER_INFO "Blacklisted hardware detected - " | |
1276 | "not loading\n"); | |
1277 | return -ENODEV; | |
1278 | } | |
1279 | ||
9991d9f2 CC |
1280 | find_quirks(); |
1281 | ||
745a5d21 CC |
1282 | /* |
1283 | * Detect which ACPI-WMI interface we're using. | |
1284 | */ | |
1285 | if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) | |
1286 | interface = &AMW0_V2_interface; | |
1287 | ||
1288 | if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) | |
1289 | interface = &wmid_interface; | |
1290 | ||
1291 | if (wmi_has_guid(WMID_GUID2) && interface) { | |
1292 | if (ACPI_FAILURE(WMID_set_capabilities())) { | |
8d039bc7 CC |
1293 | printk(ACER_ERR "Unable to detect available WMID " |
1294 | "devices\n"); | |
745a5d21 CC |
1295 | return -ENODEV; |
1296 | } | |
1297 | } else if (!wmi_has_guid(WMID_GUID2) && interface) { | |
8d039bc7 | 1298 | printk(ACER_ERR "No WMID device detection method found\n"); |
745a5d21 CC |
1299 | return -ENODEV; |
1300 | } | |
1301 | ||
1302 | if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { | |
1303 | interface = &AMW0_interface; | |
1304 | ||
1305 | if (ACPI_FAILURE(AMW0_set_capabilities())) { | |
8d039bc7 CC |
1306 | printk(ACER_ERR "Unable to detect available AMW0 " |
1307 | "devices\n"); | |
745a5d21 CC |
1308 | return -ENODEV; |
1309 | } | |
1310 | } | |
1311 | ||
9b963c40 CC |
1312 | if (wmi_has_guid(AMW0_GUID1)) |
1313 | AMW0_find_mailled(); | |
745a5d21 | 1314 | |
745a5d21 | 1315 | if (!interface) { |
8d039bc7 CC |
1316 | printk(ACER_ERR "No or unsupported WMI interface, unable to " |
1317 | "load\n"); | |
745a5d21 CC |
1318 | return -ENODEV; |
1319 | } | |
1320 | ||
83097aca AV |
1321 | set_quirks(); |
1322 | ||
1ba869ec | 1323 | if (acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) { |
febf2d95 TR |
1324 | interface->capability &= ~ACER_CAP_BRIGHTNESS; |
1325 | printk(ACER_INFO "Brightness must be controlled by " | |
1326 | "generic video driver\n"); | |
1327 | } | |
1328 | ||
745a5d21 CC |
1329 | if (platform_driver_register(&acer_platform_driver)) { |
1330 | printk(ACER_ERR "Unable to register platform driver.\n"); | |
1331 | goto error_platform_register; | |
1332 | } | |
1333 | acer_platform_device = platform_device_alloc("acer-wmi", -1); | |
1334 | platform_device_add(acer_platform_device); | |
1335 | ||
1336 | err = create_sysfs(); | |
1337 | if (err) | |
1338 | return err; | |
1339 | ||
81143522 CC |
1340 | if (wmi_has_guid(WMID_GUID2)) { |
1341 | interface->debug.wmid_devices = get_wmid_devices(); | |
1342 | err = create_debugfs(); | |
1343 | if (err) | |
1344 | return err; | |
1345 | } | |
1346 | ||
745a5d21 CC |
1347 | /* Override any initial settings with values from the commandline */ |
1348 | acer_commandline_init(); | |
1349 | ||
1350 | return 0; | |
1351 | ||
1352 | error_platform_register: | |
1353 | return -ENODEV; | |
1354 | } | |
1355 | ||
1356 | static void __exit acer_wmi_exit(void) | |
1357 | { | |
1358 | remove_sysfs(acer_platform_device); | |
39dbbb45 | 1359 | remove_debugfs(); |
745a5d21 CC |
1360 | platform_device_del(acer_platform_device); |
1361 | platform_driver_unregister(&acer_platform_driver); | |
1362 | ||
1363 | printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n"); | |
1364 | return; | |
1365 | } | |
1366 | ||
1367 | module_init(acer_wmi_init); | |
1368 | module_exit(acer_wmi_exit); |