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745a5d21 CC |
1 | /* |
2 | * Acer WMI Laptop Extras | |
3 | * | |
4 | * Copyright (C) 2007-2008 Carlos Corbacho <carlos@strangeworlds.co.uk> | |
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 | ||
25 | #define ACER_WMI_VERSION "0.1" | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/dmi.h> | |
f2b585b4 | 32 | #include <linux/fb.h> |
745a5d21 CC |
33 | #include <linux/backlight.h> |
34 | #include <linux/leds.h> | |
35 | #include <linux/platform_device.h> | |
36 | #include <linux/acpi.h> | |
37 | #include <linux/i8042.h> | |
38 | ||
39 | #include <acpi/acpi_drivers.h> | |
40 | ||
41 | MODULE_AUTHOR("Carlos Corbacho"); | |
42 | MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
45 | #define ACER_LOGPREFIX "acer-wmi: " | |
46 | #define ACER_ERR KERN_ERR ACER_LOGPREFIX | |
47 | #define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX | |
48 | #define ACER_INFO KERN_INFO ACER_LOGPREFIX | |
49 | ||
50 | /* | |
51 | * The following defines quirks to get some specific functions to work | |
52 | * which are known to not be supported over ACPI-WMI (such as the mail LED | |
53 | * on WMID based Acer's) | |
54 | */ | |
55 | struct acer_quirks { | |
56 | const char *vendor; | |
57 | const char *model; | |
58 | u16 quirks; | |
59 | }; | |
60 | ||
61 | /* | |
62 | * Magic Number | |
63 | * Meaning is unknown - this number is required for writing to ACPI for AMW0 | |
64 | * (it's also used in acerhk when directly accessing the BIOS) | |
65 | */ | |
66 | #define ACER_AMW0_WRITE 0x9610 | |
67 | ||
68 | /* | |
69 | * Bit masks for the AMW0 interface | |
70 | */ | |
71 | #define ACER_AMW0_WIRELESS_MASK 0x35 | |
72 | #define ACER_AMW0_BLUETOOTH_MASK 0x34 | |
73 | #define ACER_AMW0_MAILLED_MASK 0x31 | |
74 | ||
75 | /* | |
76 | * Method IDs for WMID interface | |
77 | */ | |
78 | #define ACER_WMID_GET_WIRELESS_METHODID 1 | |
79 | #define ACER_WMID_GET_BLUETOOTH_METHODID 2 | |
80 | #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 | |
81 | #define ACER_WMID_SET_WIRELESS_METHODID 4 | |
82 | #define ACER_WMID_SET_BLUETOOTH_METHODID 5 | |
83 | #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 | |
84 | #define ACER_WMID_GET_THREEG_METHODID 10 | |
85 | #define ACER_WMID_SET_THREEG_METHODID 11 | |
86 | ||
87 | /* | |
88 | * Acer ACPI method GUIDs | |
89 | */ | |
90 | #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" | |
91 | #define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3" | |
92 | #define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A" | |
93 | ||
94 | MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); | |
95 | MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"); | |
96 | ||
97 | /* Temporary workaround until the WMI sysfs interface goes in */ | |
98 | MODULE_ALIAS("dmi:*:*Acer*:*:"); | |
99 | ||
100 | /* | |
101 | * Interface capability flags | |
102 | */ | |
103 | #define ACER_CAP_MAILLED (1<<0) | |
104 | #define ACER_CAP_WIRELESS (1<<1) | |
105 | #define ACER_CAP_BLUETOOTH (1<<2) | |
106 | #define ACER_CAP_BRIGHTNESS (1<<3) | |
107 | #define ACER_CAP_THREEG (1<<4) | |
108 | #define ACER_CAP_ANY (0xFFFFFFFF) | |
109 | ||
110 | /* | |
111 | * Interface type flags | |
112 | */ | |
113 | enum interface_flags { | |
114 | ACER_AMW0, | |
115 | ACER_AMW0_V2, | |
116 | ACER_WMID, | |
117 | }; | |
118 | ||
119 | #define ACER_DEFAULT_WIRELESS 0 | |
120 | #define ACER_DEFAULT_BLUETOOTH 0 | |
121 | #define ACER_DEFAULT_MAILLED 0 | |
122 | #define ACER_DEFAULT_THREEG 0 | |
123 | ||
124 | static int max_brightness = 0xF; | |
125 | ||
126 | static int wireless = -1; | |
127 | static int bluetooth = -1; | |
128 | static int mailled = -1; | |
129 | static int brightness = -1; | |
130 | static int threeg = -1; | |
131 | static int force_series; | |
132 | ||
133 | module_param(mailled, int, 0444); | |
134 | module_param(wireless, int, 0444); | |
135 | module_param(bluetooth, int, 0444); | |
136 | module_param(brightness, int, 0444); | |
137 | module_param(threeg, int, 0444); | |
138 | module_param(force_series, int, 0444); | |
139 | MODULE_PARM_DESC(wireless, "Set initial state of Wireless hardware"); | |
140 | MODULE_PARM_DESC(bluetooth, "Set initial state of Bluetooth hardware"); | |
141 | MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); | |
142 | MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); | |
143 | MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); | |
144 | MODULE_PARM_DESC(force_series, "Force a different laptop series"); | |
145 | ||
146 | struct acer_data { | |
147 | int mailled; | |
148 | int wireless; | |
149 | int bluetooth; | |
150 | int threeg; | |
151 | int brightness; | |
152 | }; | |
153 | ||
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; | |
164 | }; | |
165 | ||
166 | /* The static interface pointer, points to the currently detected interface */ | |
167 | static struct wmi_interface *interface; | |
168 | ||
169 | /* | |
170 | * Embedded Controller quirks | |
171 | * Some laptops require us to directly access the EC to either enable or query | |
172 | * features that are not available through WMI. | |
173 | */ | |
174 | ||
175 | struct quirk_entry { | |
176 | u8 wireless; | |
177 | u8 mailled; | |
9991d9f2 | 178 | s8 brightness; |
745a5d21 CC |
179 | u8 bluetooth; |
180 | }; | |
181 | ||
182 | static struct quirk_entry *quirks; | |
183 | ||
184 | static void set_quirks(void) | |
185 | { | |
186 | if (quirks->mailled) | |
187 | interface->capability |= ACER_CAP_MAILLED; | |
188 | ||
189 | if (quirks->brightness) | |
190 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
191 | } | |
192 | ||
193 | static int dmi_matched(const struct dmi_system_id *dmi) | |
194 | { | |
195 | quirks = dmi->driver_data; | |
196 | return 0; | |
197 | } | |
198 | ||
199 | static struct quirk_entry quirk_unknown = { | |
200 | }; | |
201 | ||
9991d9f2 CC |
202 | static struct quirk_entry quirk_acer_aspire_1520 = { |
203 | .brightness = -1, | |
204 | }; | |
205 | ||
745a5d21 CC |
206 | static struct quirk_entry quirk_acer_travelmate_2490 = { |
207 | .mailled = 1, | |
208 | }; | |
209 | ||
210 | /* This AMW0 laptop has no bluetooth */ | |
211 | static struct quirk_entry quirk_medion_md_98300 = { | |
212 | .wireless = 1, | |
213 | }; | |
214 | ||
6f061ab5 CC |
215 | static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { |
216 | .wireless = 2, | |
217 | }; | |
218 | ||
745a5d21 | 219 | static struct dmi_system_id acer_quirks[] = { |
9991d9f2 CC |
220 | { |
221 | .callback = dmi_matched, | |
222 | .ident = "Acer Aspire 1360", | |
223 | .matches = { | |
224 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
225 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), | |
226 | }, | |
227 | .driver_data = &quirk_acer_aspire_1520, | |
228 | }, | |
229 | { | |
230 | .callback = dmi_matched, | |
231 | .ident = "Acer Aspire 1520", | |
232 | .matches = { | |
233 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
234 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), | |
235 | }, | |
236 | .driver_data = &quirk_acer_aspire_1520, | |
237 | }, | |
745a5d21 CC |
238 | { |
239 | .callback = dmi_matched, | |
240 | .ident = "Acer Aspire 3100", | |
241 | .matches = { | |
242 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
243 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), | |
244 | }, | |
245 | .driver_data = &quirk_acer_travelmate_2490, | |
246 | }, | |
ed9cfe98 CC |
247 | { |
248 | .callback = dmi_matched, | |
249 | .ident = "Acer Aspire 3610", | |
250 | .matches = { | |
251 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
252 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), | |
253 | }, | |
254 | .driver_data = &quirk_acer_travelmate_2490, | |
255 | }, | |
745a5d21 CC |
256 | { |
257 | .callback = dmi_matched, | |
258 | .ident = "Acer Aspire 5100", | |
259 | .matches = { | |
260 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
261 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), | |
262 | }, | |
263 | .driver_data = &quirk_acer_travelmate_2490, | |
264 | }, | |
ed9cfe98 CC |
265 | { |
266 | .callback = dmi_matched, | |
267 | .ident = "Acer Aspire 5610", | |
268 | .matches = { | |
269 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
270 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), | |
271 | }, | |
272 | .driver_data = &quirk_acer_travelmate_2490, | |
273 | }, | |
745a5d21 CC |
274 | { |
275 | .callback = dmi_matched, | |
276 | .ident = "Acer Aspire 5630", | |
277 | .matches = { | |
278 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
279 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), | |
280 | }, | |
281 | .driver_data = &quirk_acer_travelmate_2490, | |
282 | }, | |
283 | { | |
284 | .callback = dmi_matched, | |
285 | .ident = "Acer Aspire 5650", | |
286 | .matches = { | |
287 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
288 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), | |
289 | }, | |
290 | .driver_data = &quirk_acer_travelmate_2490, | |
291 | }, | |
292 | { | |
293 | .callback = dmi_matched, | |
294 | .ident = "Acer Aspire 5680", | |
295 | .matches = { | |
296 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
297 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), | |
298 | }, | |
299 | .driver_data = &quirk_acer_travelmate_2490, | |
300 | }, | |
301 | { | |
302 | .callback = dmi_matched, | |
303 | .ident = "Acer Aspire 9110", | |
304 | .matches = { | |
305 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
306 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), | |
307 | }, | |
308 | .driver_data = &quirk_acer_travelmate_2490, | |
309 | }, | |
310 | { | |
311 | .callback = dmi_matched, | |
312 | .ident = "Acer TravelMate 2490", | |
313 | .matches = { | |
314 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
315 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), | |
316 | }, | |
317 | .driver_data = &quirk_acer_travelmate_2490, | |
318 | }, | |
262ee35b CC |
319 | { |
320 | .callback = dmi_matched, | |
321 | .ident = "Acer TravelMate 4200", | |
322 | .matches = { | |
323 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
324 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), | |
325 | }, | |
326 | .driver_data = &quirk_acer_travelmate_2490, | |
327 | }, | |
6f061ab5 CC |
328 | { |
329 | .callback = dmi_matched, | |
330 | .ident = "Fujitsu Siemens Amilo Li 1718", | |
331 | .matches = { | |
332 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
333 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), | |
334 | }, | |
335 | .driver_data = &quirk_fujitsu_amilo_li_1718, | |
336 | }, | |
745a5d21 CC |
337 | { |
338 | .callback = dmi_matched, | |
339 | .ident = "Medion MD 98300", | |
340 | .matches = { | |
341 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), | |
342 | DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), | |
343 | }, | |
344 | .driver_data = &quirk_medion_md_98300, | |
345 | }, | |
346 | {} | |
347 | }; | |
348 | ||
349 | /* Find which quirks are needed for a particular vendor/ model pair */ | |
350 | static void find_quirks(void) | |
351 | { | |
352 | if (!force_series) { | |
353 | dmi_check_system(acer_quirks); | |
354 | } else if (force_series == 2490) { | |
355 | quirks = &quirk_acer_travelmate_2490; | |
356 | } | |
357 | ||
358 | if (quirks == NULL) | |
359 | quirks = &quirk_unknown; | |
360 | ||
361 | set_quirks(); | |
362 | } | |
363 | ||
364 | /* | |
365 | * General interface convenience methods | |
366 | */ | |
367 | ||
368 | static bool has_cap(u32 cap) | |
369 | { | |
370 | if ((interface->capability & cap) != 0) | |
371 | return 1; | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | /* | |
377 | * AMW0 (V1) interface | |
378 | */ | |
379 | struct wmab_args { | |
380 | u32 eax; | |
381 | u32 ebx; | |
382 | u32 ecx; | |
383 | u32 edx; | |
384 | }; | |
385 | ||
386 | struct wmab_ret { | |
387 | u32 eax; | |
388 | u32 ebx; | |
389 | u32 ecx; | |
390 | u32 edx; | |
391 | u32 eex; | |
392 | }; | |
393 | ||
394 | static acpi_status wmab_execute(struct wmab_args *regbuf, | |
395 | struct acpi_buffer *result) | |
396 | { | |
397 | struct acpi_buffer input; | |
398 | acpi_status status; | |
399 | input.length = sizeof(struct wmab_args); | |
400 | input.pointer = (u8 *)regbuf; | |
401 | ||
402 | status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); | |
403 | ||
404 | return status; | |
405 | } | |
406 | ||
407 | static acpi_status AMW0_get_u32(u32 *value, u32 cap, | |
408 | struct wmi_interface *iface) | |
409 | { | |
410 | int err; | |
411 | u8 result; | |
412 | ||
413 | switch (cap) { | |
414 | case ACER_CAP_MAILLED: | |
415 | switch (quirks->mailled) { | |
416 | default: | |
417 | err = ec_read(0xA, &result); | |
418 | if (err) | |
419 | return AE_ERROR; | |
420 | *value = (result >> 7) & 0x1; | |
421 | return AE_OK; | |
422 | } | |
423 | break; | |
424 | case ACER_CAP_WIRELESS: | |
425 | switch (quirks->wireless) { | |
426 | case 1: | |
427 | err = ec_read(0x7B, &result); | |
428 | if (err) | |
429 | return AE_ERROR; | |
430 | *value = result & 0x1; | |
431 | return AE_OK; | |
6f061ab5 CC |
432 | case 2: |
433 | err = ec_read(0x71, &result); | |
434 | if (err) | |
435 | return AE_ERROR; | |
436 | *value = result & 0x1; | |
437 | return AE_OK; | |
745a5d21 CC |
438 | default: |
439 | err = ec_read(0xA, &result); | |
440 | if (err) | |
441 | return AE_ERROR; | |
442 | *value = (result >> 2) & 0x1; | |
443 | return AE_OK; | |
444 | } | |
445 | break; | |
446 | case ACER_CAP_BLUETOOTH: | |
447 | switch (quirks->bluetooth) { | |
448 | default: | |
449 | err = ec_read(0xA, &result); | |
450 | if (err) | |
451 | return AE_ERROR; | |
452 | *value = (result >> 4) & 0x1; | |
453 | return AE_OK; | |
454 | } | |
455 | break; | |
456 | case ACER_CAP_BRIGHTNESS: | |
457 | switch (quirks->brightness) { | |
458 | default: | |
459 | err = ec_read(0x83, &result); | |
460 | if (err) | |
461 | return AE_ERROR; | |
462 | *value = result; | |
463 | return AE_OK; | |
464 | } | |
465 | break; | |
466 | default: | |
467 | return AE_BAD_ADDRESS; | |
468 | } | |
469 | return AE_OK; | |
470 | } | |
471 | ||
472 | static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface) | |
473 | { | |
474 | struct wmab_args args; | |
475 | ||
476 | args.eax = ACER_AMW0_WRITE; | |
477 | args.ebx = value ? (1<<8) : 0; | |
478 | args.ecx = args.edx = 0; | |
479 | ||
480 | switch (cap) { | |
481 | case ACER_CAP_MAILLED: | |
482 | if (value > 1) | |
483 | return AE_BAD_PARAMETER; | |
484 | args.ebx |= ACER_AMW0_MAILLED_MASK; | |
485 | break; | |
486 | case ACER_CAP_WIRELESS: | |
487 | if (value > 1) | |
488 | return AE_BAD_PARAMETER; | |
489 | args.ebx |= ACER_AMW0_WIRELESS_MASK; | |
490 | break; | |
491 | case ACER_CAP_BLUETOOTH: | |
492 | if (value > 1) | |
493 | return AE_BAD_PARAMETER; | |
494 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; | |
495 | break; | |
496 | case ACER_CAP_BRIGHTNESS: | |
497 | if (value > max_brightness) | |
498 | return AE_BAD_PARAMETER; | |
499 | switch (quirks->brightness) { | |
745a5d21 | 500 | default: |
4609d029 CC |
501 | return ec_write(0x83, value); |
502 | break; | |
745a5d21 CC |
503 | } |
504 | default: | |
505 | return AE_BAD_ADDRESS; | |
506 | } | |
507 | ||
508 | /* Actually do the set */ | |
509 | return wmab_execute(&args, NULL); | |
510 | } | |
511 | ||
512 | static acpi_status AMW0_find_mailled(void) | |
513 | { | |
514 | struct wmab_args args; | |
515 | struct wmab_ret ret; | |
516 | acpi_status status = AE_OK; | |
517 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; | |
518 | union acpi_object *obj; | |
519 | ||
520 | args.eax = 0x86; | |
521 | args.ebx = args.ecx = args.edx = 0; | |
522 | ||
523 | status = wmab_execute(&args, &out); | |
524 | if (ACPI_FAILURE(status)) | |
525 | return status; | |
526 | ||
527 | obj = (union acpi_object *) out.pointer; | |
528 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
529 | obj->buffer.length == sizeof(struct wmab_ret)) { | |
530 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
531 | } else { | |
532 | return AE_ERROR; | |
533 | } | |
534 | ||
535 | if (ret.eex & 0x1) | |
536 | interface->capability |= ACER_CAP_MAILLED; | |
537 | ||
538 | kfree(out.pointer); | |
539 | ||
540 | return AE_OK; | |
541 | } | |
542 | ||
543 | static acpi_status AMW0_set_capabilities(void) | |
544 | { | |
545 | struct wmab_args args; | |
546 | struct wmab_ret ret; | |
547 | acpi_status status = AE_OK; | |
548 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; | |
549 | union acpi_object *obj; | |
550 | ||
551 | args.eax = ACER_AMW0_WRITE; | |
552 | args.ecx = args.edx = 0; | |
553 | ||
554 | args.ebx = 0xa2 << 8; | |
555 | args.ebx |= ACER_AMW0_WIRELESS_MASK; | |
556 | ||
557 | status = wmab_execute(&args, &out); | |
558 | if (ACPI_FAILURE(status)) | |
559 | return status; | |
560 | ||
561 | obj = (union acpi_object *) out.pointer; | |
562 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
563 | obj->buffer.length == sizeof(struct wmab_ret)) { | |
564 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
565 | } else { | |
566 | return AE_ERROR; | |
567 | } | |
568 | ||
569 | if (ret.eax & 0x1) | |
570 | interface->capability |= ACER_CAP_WIRELESS; | |
571 | ||
572 | args.ebx = 2 << 8; | |
573 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; | |
574 | ||
575 | status = wmab_execute(&args, &out); | |
576 | if (ACPI_FAILURE(status)) | |
577 | return status; | |
578 | ||
579 | obj = (union acpi_object *) out.pointer; | |
580 | if (obj && obj->type == ACPI_TYPE_BUFFER | |
581 | && obj->buffer.length == sizeof(struct wmab_ret)) { | |
582 | ret = *((struct wmab_ret *) obj->buffer.pointer); | |
583 | } else { | |
584 | return AE_ERROR; | |
585 | } | |
586 | ||
587 | if (ret.eax & 0x1) | |
588 | interface->capability |= ACER_CAP_BLUETOOTH; | |
589 | ||
590 | kfree(out.pointer); | |
591 | ||
592 | /* | |
593 | * This appears to be safe to enable, since all Wistron based laptops | |
594 | * appear to use the same EC register for brightness, even if they | |
595 | * differ for wireless, etc | |
596 | */ | |
9991d9f2 CC |
597 | if (quirks->brightness >= 0) |
598 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
745a5d21 CC |
599 | |
600 | return AE_OK; | |
601 | } | |
602 | ||
603 | static struct wmi_interface AMW0_interface = { | |
604 | .type = ACER_AMW0, | |
605 | }; | |
606 | ||
607 | static struct wmi_interface AMW0_V2_interface = { | |
608 | .type = ACER_AMW0_V2, | |
609 | }; | |
610 | ||
611 | /* | |
612 | * New interface (The WMID interface) | |
613 | */ | |
614 | static acpi_status | |
615 | WMI_execute_u32(u32 method_id, u32 in, u32 *out) | |
616 | { | |
617 | struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; | |
618 | struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; | |
619 | union acpi_object *obj; | |
620 | u32 tmp; | |
621 | acpi_status status; | |
622 | ||
623 | status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); | |
624 | ||
625 | if (ACPI_FAILURE(status)) | |
626 | return status; | |
627 | ||
628 | obj = (union acpi_object *) result.pointer; | |
629 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
630 | obj->buffer.length == sizeof(u32)) { | |
631 | tmp = *((u32 *) obj->buffer.pointer); | |
632 | } else { | |
633 | tmp = 0; | |
634 | } | |
635 | ||
636 | if (out) | |
637 | *out = tmp; | |
638 | ||
639 | kfree(result.pointer); | |
640 | ||
641 | return status; | |
642 | } | |
643 | ||
644 | static acpi_status WMID_get_u32(u32 *value, u32 cap, | |
645 | struct wmi_interface *iface) | |
646 | { | |
647 | acpi_status status; | |
648 | u8 tmp; | |
649 | u32 result, method_id = 0; | |
650 | ||
651 | switch (cap) { | |
652 | case ACER_CAP_WIRELESS: | |
653 | method_id = ACER_WMID_GET_WIRELESS_METHODID; | |
654 | break; | |
655 | case ACER_CAP_BLUETOOTH: | |
656 | method_id = ACER_WMID_GET_BLUETOOTH_METHODID; | |
657 | break; | |
658 | case ACER_CAP_BRIGHTNESS: | |
659 | method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; | |
660 | break; | |
661 | case ACER_CAP_THREEG: | |
662 | method_id = ACER_WMID_GET_THREEG_METHODID; | |
663 | break; | |
664 | case ACER_CAP_MAILLED: | |
665 | if (quirks->mailled == 1) { | |
666 | ec_read(0x9f, &tmp); | |
667 | *value = tmp & 0x1; | |
668 | return 0; | |
669 | } | |
670 | default: | |
671 | return AE_BAD_ADDRESS; | |
672 | } | |
673 | status = WMI_execute_u32(method_id, 0, &result); | |
674 | ||
675 | if (ACPI_SUCCESS(status)) | |
676 | *value = (u8)result; | |
677 | ||
678 | return status; | |
679 | } | |
680 | ||
681 | static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface) | |
682 | { | |
683 | u32 method_id = 0; | |
684 | char param; | |
685 | ||
686 | switch (cap) { | |
687 | case ACER_CAP_BRIGHTNESS: | |
688 | if (value > max_brightness) | |
689 | return AE_BAD_PARAMETER; | |
690 | method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; | |
691 | break; | |
692 | case ACER_CAP_WIRELESS: | |
693 | if (value > 1) | |
694 | return AE_BAD_PARAMETER; | |
695 | method_id = ACER_WMID_SET_WIRELESS_METHODID; | |
696 | break; | |
697 | case ACER_CAP_BLUETOOTH: | |
698 | if (value > 1) | |
699 | return AE_BAD_PARAMETER; | |
700 | method_id = ACER_WMID_SET_BLUETOOTH_METHODID; | |
701 | break; | |
702 | case ACER_CAP_THREEG: | |
703 | if (value > 1) | |
704 | return AE_BAD_PARAMETER; | |
705 | method_id = ACER_WMID_SET_THREEG_METHODID; | |
706 | break; | |
707 | case ACER_CAP_MAILLED: | |
708 | if (value > 1) | |
709 | return AE_BAD_PARAMETER; | |
710 | if (quirks->mailled == 1) { | |
711 | param = value ? 0x92 : 0x93; | |
712 | i8042_command(¶m, 0x1059); | |
713 | return 0; | |
714 | } | |
715 | break; | |
716 | default: | |
717 | return AE_BAD_ADDRESS; | |
718 | } | |
719 | return WMI_execute_u32(method_id, (u32)value, NULL); | |
720 | } | |
721 | ||
722 | static acpi_status WMID_set_capabilities(void) | |
723 | { | |
724 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; | |
725 | union acpi_object *obj; | |
726 | acpi_status status; | |
727 | u32 devices; | |
728 | ||
729 | status = wmi_query_block(WMID_GUID2, 1, &out); | |
730 | if (ACPI_FAILURE(status)) | |
731 | return status; | |
732 | ||
733 | obj = (union acpi_object *) out.pointer; | |
734 | if (obj && obj->type == ACPI_TYPE_BUFFER && | |
735 | obj->buffer.length == sizeof(u32)) { | |
736 | devices = *((u32 *) obj->buffer.pointer); | |
737 | } else { | |
738 | return AE_ERROR; | |
739 | } | |
740 | ||
741 | /* Not sure on the meaning of the relevant bits yet to detect these */ | |
742 | interface->capability |= ACER_CAP_WIRELESS; | |
743 | interface->capability |= ACER_CAP_THREEG; | |
744 | ||
745 | /* WMID always provides brightness methods */ | |
746 | interface->capability |= ACER_CAP_BRIGHTNESS; | |
747 | ||
748 | if (devices & 0x10) | |
749 | interface->capability |= ACER_CAP_BLUETOOTH; | |
750 | ||
751 | if (!(devices & 0x20)) | |
752 | max_brightness = 0x9; | |
753 | ||
754 | return status; | |
755 | } | |
756 | ||
757 | static struct wmi_interface wmid_interface = { | |
758 | .type = ACER_WMID, | |
759 | }; | |
760 | ||
761 | /* | |
762 | * Generic Device (interface-independent) | |
763 | */ | |
764 | ||
765 | static acpi_status get_u32(u32 *value, u32 cap) | |
766 | { | |
767 | acpi_status status = AE_BAD_ADDRESS; | |
768 | ||
769 | switch (interface->type) { | |
770 | case ACER_AMW0: | |
771 | status = AMW0_get_u32(value, cap, interface); | |
772 | break; | |
773 | case ACER_AMW0_V2: | |
774 | if (cap == ACER_CAP_MAILLED) { | |
775 | status = AMW0_get_u32(value, cap, interface); | |
776 | break; | |
777 | } | |
778 | case ACER_WMID: | |
779 | status = WMID_get_u32(value, cap, interface); | |
780 | break; | |
781 | } | |
782 | ||
783 | return status; | |
784 | } | |
785 | ||
786 | static acpi_status set_u32(u32 value, u32 cap) | |
787 | { | |
788 | if (interface->capability & cap) { | |
789 | switch (interface->type) { | |
790 | case ACER_AMW0: | |
791 | return AMW0_set_u32(value, cap, interface); | |
792 | case ACER_AMW0_V2: | |
793 | case ACER_WMID: | |
794 | return WMID_set_u32(value, cap, interface); | |
795 | default: | |
796 | return AE_BAD_PARAMETER; | |
797 | } | |
798 | } | |
799 | return AE_BAD_PARAMETER; | |
800 | } | |
801 | ||
802 | static void __init acer_commandline_init(void) | |
803 | { | |
804 | /* | |
805 | * These will all fail silently if the value given is invalid, or the | |
806 | * capability isn't available on the given interface | |
807 | */ | |
808 | set_u32(mailled, ACER_CAP_MAILLED); | |
809 | set_u32(wireless, ACER_CAP_WIRELESS); | |
810 | set_u32(bluetooth, ACER_CAP_BLUETOOTH); | |
811 | set_u32(threeg, ACER_CAP_THREEG); | |
812 | set_u32(brightness, ACER_CAP_BRIGHTNESS); | |
813 | } | |
814 | ||
815 | /* | |
816 | * LED device (Mail LED only, no other LEDs known yet) | |
817 | */ | |
818 | static void mail_led_set(struct led_classdev *led_cdev, | |
819 | enum led_brightness value) | |
820 | { | |
821 | set_u32(value, ACER_CAP_MAILLED); | |
822 | } | |
823 | ||
824 | static struct led_classdev mail_led = { | |
343c0042 | 825 | .name = "acer-wmi::mail", |
745a5d21 CC |
826 | .brightness_set = mail_led_set, |
827 | }; | |
828 | ||
7560e385 | 829 | static int __devinit acer_led_init(struct device *dev) |
745a5d21 CC |
830 | { |
831 | return led_classdev_register(dev, &mail_led); | |
832 | } | |
833 | ||
834 | static void acer_led_exit(void) | |
835 | { | |
836 | led_classdev_unregister(&mail_led); | |
837 | } | |
838 | ||
839 | /* | |
840 | * Backlight device | |
841 | */ | |
842 | static struct backlight_device *acer_backlight_device; | |
843 | ||
844 | static int read_brightness(struct backlight_device *bd) | |
845 | { | |
846 | u32 value; | |
847 | get_u32(&value, ACER_CAP_BRIGHTNESS); | |
848 | return value; | |
849 | } | |
850 | ||
851 | static int update_bl_status(struct backlight_device *bd) | |
852 | { | |
f2b585b4 CC |
853 | int intensity = bd->props.brightness; |
854 | ||
855 | if (bd->props.power != FB_BLANK_UNBLANK) | |
856 | intensity = 0; | |
857 | if (bd->props.fb_blank != FB_BLANK_UNBLANK) | |
858 | intensity = 0; | |
859 | ||
860 | set_u32(intensity, ACER_CAP_BRIGHTNESS); | |
861 | ||
745a5d21 CC |
862 | return 0; |
863 | } | |
864 | ||
865 | static struct backlight_ops acer_bl_ops = { | |
866 | .get_brightness = read_brightness, | |
867 | .update_status = update_bl_status, | |
868 | }; | |
869 | ||
7560e385 | 870 | static int __devinit acer_backlight_init(struct device *dev) |
745a5d21 CC |
871 | { |
872 | struct backlight_device *bd; | |
873 | ||
874 | bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops); | |
875 | if (IS_ERR(bd)) { | |
876 | printk(ACER_ERR "Could not register Acer backlight device\n"); | |
877 | acer_backlight_device = NULL; | |
878 | return PTR_ERR(bd); | |
879 | } | |
880 | ||
881 | acer_backlight_device = bd; | |
882 | ||
f2b585b4 CC |
883 | bd->props.power = FB_BLANK_UNBLANK; |
884 | bd->props.brightness = max_brightness; | |
745a5d21 | 885 | bd->props.max_brightness = max_brightness; |
745a5d21 CC |
886 | backlight_update_status(bd); |
887 | return 0; | |
888 | } | |
889 | ||
7560e385 | 890 | static void acer_backlight_exit(void) |
745a5d21 CC |
891 | { |
892 | backlight_device_unregister(acer_backlight_device); | |
893 | } | |
894 | ||
895 | /* | |
896 | * Read/ write bool sysfs macro | |
897 | */ | |
898 | #define show_set_bool(value, cap) \ | |
899 | static ssize_t \ | |
900 | show_bool_##value(struct device *dev, struct device_attribute *attr, \ | |
901 | char *buf) \ | |
902 | { \ | |
903 | u32 result; \ | |
904 | acpi_status status = get_u32(&result, cap); \ | |
905 | if (ACPI_SUCCESS(status)) \ | |
906 | return sprintf(buf, "%u\n", result); \ | |
907 | return sprintf(buf, "Read error\n"); \ | |
908 | } \ | |
909 | \ | |
910 | static ssize_t \ | |
911 | set_bool_##value(struct device *dev, struct device_attribute *attr, \ | |
912 | const char *buf, size_t count) \ | |
913 | { \ | |
914 | u32 tmp = simple_strtoul(buf, NULL, 10); \ | |
915 | acpi_status status = set_u32(tmp, cap); \ | |
916 | if (ACPI_FAILURE(status)) \ | |
917 | return -EINVAL; \ | |
918 | return count; \ | |
919 | } \ | |
920 | static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \ | |
921 | show_bool_##value, set_bool_##value); | |
922 | ||
923 | show_set_bool(wireless, ACER_CAP_WIRELESS); | |
924 | show_set_bool(bluetooth, ACER_CAP_BLUETOOTH); | |
925 | show_set_bool(threeg, ACER_CAP_THREEG); | |
926 | ||
927 | /* | |
928 | * Read interface sysfs macro | |
929 | */ | |
930 | static ssize_t show_interface(struct device *dev, struct device_attribute *attr, | |
931 | char *buf) | |
932 | { | |
933 | switch (interface->type) { | |
934 | case ACER_AMW0: | |
935 | return sprintf(buf, "AMW0\n"); | |
936 | case ACER_AMW0_V2: | |
937 | return sprintf(buf, "AMW0 v2\n"); | |
938 | case ACER_WMID: | |
939 | return sprintf(buf, "WMID\n"); | |
940 | default: | |
941 | return sprintf(buf, "Error!\n"); | |
942 | } | |
943 | } | |
944 | ||
945 | static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR, | |
946 | show_interface, NULL); | |
947 | ||
948 | /* | |
949 | * Platform device | |
950 | */ | |
951 | static int __devinit acer_platform_probe(struct platform_device *device) | |
952 | { | |
953 | int err; | |
954 | ||
955 | if (has_cap(ACER_CAP_MAILLED)) { | |
956 | err = acer_led_init(&device->dev); | |
957 | if (err) | |
958 | goto error_mailled; | |
959 | } | |
960 | ||
961 | if (has_cap(ACER_CAP_BRIGHTNESS)) { | |
962 | err = acer_backlight_init(&device->dev); | |
963 | if (err) | |
964 | goto error_brightness; | |
965 | } | |
966 | ||
967 | return 0; | |
968 | ||
969 | error_brightness: | |
970 | acer_led_exit(); | |
971 | error_mailled: | |
972 | return err; | |
973 | } | |
974 | ||
975 | static int acer_platform_remove(struct platform_device *device) | |
976 | { | |
977 | if (has_cap(ACER_CAP_MAILLED)) | |
978 | acer_led_exit(); | |
979 | if (has_cap(ACER_CAP_BRIGHTNESS)) | |
980 | acer_backlight_exit(); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | static int acer_platform_suspend(struct platform_device *dev, | |
985 | pm_message_t state) | |
986 | { | |
987 | u32 value; | |
988 | struct acer_data *data = &interface->data; | |
989 | ||
990 | if (!data) | |
991 | return -ENOMEM; | |
992 | ||
993 | if (has_cap(ACER_CAP_WIRELESS)) { | |
994 | get_u32(&value, ACER_CAP_WIRELESS); | |
995 | data->wireless = value; | |
996 | } | |
997 | ||
998 | if (has_cap(ACER_CAP_BLUETOOTH)) { | |
999 | get_u32(&value, ACER_CAP_BLUETOOTH); | |
1000 | data->bluetooth = value; | |
1001 | } | |
1002 | ||
1003 | if (has_cap(ACER_CAP_MAILLED)) { | |
1004 | get_u32(&value, ACER_CAP_MAILLED); | |
1005 | data->mailled = value; | |
1006 | } | |
1007 | ||
1008 | if (has_cap(ACER_CAP_BRIGHTNESS)) { | |
1009 | get_u32(&value, ACER_CAP_BRIGHTNESS); | |
1010 | data->brightness = value; | |
1011 | } | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static int acer_platform_resume(struct platform_device *device) | |
1017 | { | |
1018 | struct acer_data *data = &interface->data; | |
1019 | ||
1020 | if (!data) | |
1021 | return -ENOMEM; | |
1022 | ||
1023 | if (has_cap(ACER_CAP_WIRELESS)) | |
1024 | set_u32(data->wireless, ACER_CAP_WIRELESS); | |
1025 | ||
1026 | if (has_cap(ACER_CAP_BLUETOOTH)) | |
1027 | set_u32(data->bluetooth, ACER_CAP_BLUETOOTH); | |
1028 | ||
1029 | if (has_cap(ACER_CAP_THREEG)) | |
1030 | set_u32(data->threeg, ACER_CAP_THREEG); | |
1031 | ||
1032 | if (has_cap(ACER_CAP_MAILLED)) | |
1033 | set_u32(data->mailled, ACER_CAP_MAILLED); | |
1034 | ||
1035 | if (has_cap(ACER_CAP_BRIGHTNESS)) | |
1036 | set_u32(data->brightness, ACER_CAP_BRIGHTNESS); | |
1037 | ||
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | static struct platform_driver acer_platform_driver = { | |
1042 | .driver = { | |
1043 | .name = "acer-wmi", | |
1044 | .owner = THIS_MODULE, | |
1045 | }, | |
1046 | .probe = acer_platform_probe, | |
1047 | .remove = acer_platform_remove, | |
1048 | .suspend = acer_platform_suspend, | |
1049 | .resume = acer_platform_resume, | |
1050 | }; | |
1051 | ||
1052 | static struct platform_device *acer_platform_device; | |
1053 | ||
1054 | static int remove_sysfs(struct platform_device *device) | |
1055 | { | |
1056 | if (has_cap(ACER_CAP_WIRELESS)) | |
1057 | device_remove_file(&device->dev, &dev_attr_wireless); | |
1058 | ||
1059 | if (has_cap(ACER_CAP_BLUETOOTH)) | |
1060 | device_remove_file(&device->dev, &dev_attr_bluetooth); | |
1061 | ||
1062 | if (has_cap(ACER_CAP_THREEG)) | |
1063 | device_remove_file(&device->dev, &dev_attr_threeg); | |
1064 | ||
1065 | device_remove_file(&device->dev, &dev_attr_interface); | |
1066 | ||
1067 | return 0; | |
1068 | } | |
1069 | ||
1070 | static int create_sysfs(void) | |
1071 | { | |
1072 | int retval = -ENOMEM; | |
1073 | ||
1074 | if (has_cap(ACER_CAP_WIRELESS)) { | |
1075 | retval = device_create_file(&acer_platform_device->dev, | |
1076 | &dev_attr_wireless); | |
1077 | if (retval) | |
1078 | goto error_sysfs; | |
1079 | } | |
1080 | ||
1081 | if (has_cap(ACER_CAP_BLUETOOTH)) { | |
1082 | retval = device_create_file(&acer_platform_device->dev, | |
1083 | &dev_attr_bluetooth); | |
1084 | if (retval) | |
1085 | goto error_sysfs; | |
1086 | } | |
1087 | ||
1088 | if (has_cap(ACER_CAP_THREEG)) { | |
1089 | retval = device_create_file(&acer_platform_device->dev, | |
1090 | &dev_attr_threeg); | |
1091 | if (retval) | |
1092 | goto error_sysfs; | |
1093 | } | |
1094 | ||
1095 | retval = device_create_file(&acer_platform_device->dev, | |
1096 | &dev_attr_interface); | |
1097 | if (retval) | |
1098 | goto error_sysfs; | |
1099 | ||
1100 | return 0; | |
1101 | ||
1102 | error_sysfs: | |
1103 | remove_sysfs(acer_platform_device); | |
1104 | return retval; | |
1105 | } | |
1106 | ||
1107 | static int __init acer_wmi_init(void) | |
1108 | { | |
1109 | int err; | |
1110 | ||
1111 | printk(ACER_INFO "Acer Laptop ACPI-WMI Extras version %s\n", | |
1112 | ACER_WMI_VERSION); | |
1113 | ||
9991d9f2 CC |
1114 | find_quirks(); |
1115 | ||
745a5d21 CC |
1116 | /* |
1117 | * Detect which ACPI-WMI interface we're using. | |
1118 | */ | |
1119 | if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) | |
1120 | interface = &AMW0_V2_interface; | |
1121 | ||
1122 | if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) | |
1123 | interface = &wmid_interface; | |
1124 | ||
1125 | if (wmi_has_guid(WMID_GUID2) && interface) { | |
1126 | if (ACPI_FAILURE(WMID_set_capabilities())) { | |
8d039bc7 CC |
1127 | printk(ACER_ERR "Unable to detect available WMID " |
1128 | "devices\n"); | |
745a5d21 CC |
1129 | return -ENODEV; |
1130 | } | |
1131 | } else if (!wmi_has_guid(WMID_GUID2) && interface) { | |
8d039bc7 | 1132 | printk(ACER_ERR "No WMID device detection method found\n"); |
745a5d21 CC |
1133 | return -ENODEV; |
1134 | } | |
1135 | ||
1136 | if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { | |
1137 | interface = &AMW0_interface; | |
1138 | ||
1139 | if (ACPI_FAILURE(AMW0_set_capabilities())) { | |
8d039bc7 CC |
1140 | printk(ACER_ERR "Unable to detect available AMW0 " |
1141 | "devices\n"); | |
745a5d21 CC |
1142 | return -ENODEV; |
1143 | } | |
1144 | } | |
1145 | ||
9b963c40 CC |
1146 | if (wmi_has_guid(AMW0_GUID1)) |
1147 | AMW0_find_mailled(); | |
745a5d21 | 1148 | |
745a5d21 | 1149 | if (!interface) { |
8d039bc7 CC |
1150 | printk(ACER_ERR "No or unsupported WMI interface, unable to " |
1151 | "load\n"); | |
745a5d21 CC |
1152 | return -ENODEV; |
1153 | } | |
1154 | ||
1155 | if (platform_driver_register(&acer_platform_driver)) { | |
1156 | printk(ACER_ERR "Unable to register platform driver.\n"); | |
1157 | goto error_platform_register; | |
1158 | } | |
1159 | acer_platform_device = platform_device_alloc("acer-wmi", -1); | |
1160 | platform_device_add(acer_platform_device); | |
1161 | ||
1162 | err = create_sysfs(); | |
1163 | if (err) | |
1164 | return err; | |
1165 | ||
1166 | /* Override any initial settings with values from the commandline */ | |
1167 | acer_commandline_init(); | |
1168 | ||
1169 | return 0; | |
1170 | ||
1171 | error_platform_register: | |
1172 | return -ENODEV; | |
1173 | } | |
1174 | ||
1175 | static void __exit acer_wmi_exit(void) | |
1176 | { | |
1177 | remove_sysfs(acer_platform_device); | |
1178 | platform_device_del(acer_platform_device); | |
1179 | platform_driver_unregister(&acer_platform_driver); | |
1180 | ||
1181 | printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n"); | |
1182 | return; | |
1183 | } | |
1184 | ||
1185 | module_init(acer_wmi_init); | |
1186 | module_exit(acer_wmi_exit); |