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Merge tag 'master-2014-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil...
[deliverable/linux.git] / drivers / platform / x86 / acer-wmi.c
1 /*
2 * Acer WMI Laptop Extras
3 *
4 * Copyright (C) 2007-2009 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
32 #include <linux/fb.h>
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 #include <linux/rfkill.h>
39 #include <linux/workqueue.h>
40 #include <linux/debugfs.h>
41 #include <linux/slab.h>
42 #include <linux/input.h>
43 #include <linux/input/sparse-keymap.h>
44 #include <acpi/video.h>
45
46 MODULE_AUTHOR("Carlos Corbacho");
47 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
48 MODULE_LICENSE("GPL");
49
50 /*
51 * Magic Number
52 * Meaning is unknown - this number is required for writing to ACPI for AMW0
53 * (it's also used in acerhk when directly accessing the BIOS)
54 */
55 #define ACER_AMW0_WRITE 0x9610
56
57 /*
58 * Bit masks for the AMW0 interface
59 */
60 #define ACER_AMW0_WIRELESS_MASK 0x35
61 #define ACER_AMW0_BLUETOOTH_MASK 0x34
62 #define ACER_AMW0_MAILLED_MASK 0x31
63
64 /*
65 * Method IDs for WMID interface
66 */
67 #define ACER_WMID_GET_WIRELESS_METHODID 1
68 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
69 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
70 #define ACER_WMID_SET_WIRELESS_METHODID 4
71 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
72 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
73 #define ACER_WMID_GET_THREEG_METHODID 10
74 #define ACER_WMID_SET_THREEG_METHODID 11
75
76 /*
77 * Acer ACPI method GUIDs
78 */
79 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
80 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
81 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
82 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
83 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
84
85 /*
86 * Acer ACPI event GUIDs
87 */
88 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
89
90 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
91 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
92 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
93
94 enum acer_wmi_event_ids {
95 WMID_HOTKEY_EVENT = 0x1,
96 WMID_ACCEL_EVENT = 0x5,
97 };
98
99 static const struct key_entry acer_wmi_keymap[] __initconst = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
131 {KE_END, 0}
132 };
133
134 static struct input_dev *acer_wmi_input_dev;
135 static struct input_dev *acer_wmi_accel_dev;
136
137 struct event_return_value {
138 u8 function;
139 u8 key_num;
140 u16 device_state;
141 u32 reserved;
142 } __attribute__((packed));
143
144 /*
145 * GUID3 Get Device Status device flags
146 */
147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
152
153 struct lm_input_params {
154 u8 function_num; /* Function Number */
155 u16 commun_devices; /* Communication type devices default status */
156 u16 devices; /* Other type devices default status */
157 u8 lm_status; /* Launch Manager Status */
158 u16 reserved;
159 } __attribute__((packed));
160
161 struct lm_return_value {
162 u8 error_code; /* Error Code */
163 u8 ec_return_value; /* EC Return Value */
164 u16 reserved;
165 } __attribute__((packed));
166
167 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
168 u8 function_num; /* Function Number */
169 u8 hotkey_number; /* Hotkey Number */
170 u16 devices; /* Set Device */
171 u8 volume_value; /* Volume Value */
172 } __attribute__((packed));
173
174 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Get Device */
178 } __attribute__((packed));
179
180 struct wmid3_gds_return_value { /* Get Device Status return value*/
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 devices; /* Current Device Status */
184 u32 reserved;
185 } __attribute__((packed));
186
187 struct hotkey_function_type_aa {
188 u8 type;
189 u8 length;
190 u16 handle;
191 u16 commun_func_bitmap;
192 u16 application_func_bitmap;
193 u16 media_func_bitmap;
194 u16 display_func_bitmap;
195 u16 others_func_bitmap;
196 u8 commun_fn_key_number;
197 } __attribute__((packed));
198
199 /*
200 * Interface capability flags
201 */
202 #define ACER_CAP_MAILLED (1<<0)
203 #define ACER_CAP_WIRELESS (1<<1)
204 #define ACER_CAP_BLUETOOTH (1<<2)
205 #define ACER_CAP_BRIGHTNESS (1<<3)
206 #define ACER_CAP_THREEG (1<<4)
207 #define ACER_CAP_ACCEL (1<<5)
208 #define ACER_CAP_ANY (0xFFFFFFFF)
209
210 /*
211 * Interface type flags
212 */
213 enum interface_flags {
214 ACER_AMW0,
215 ACER_AMW0_V2,
216 ACER_WMID,
217 ACER_WMID_v2,
218 };
219
220 #define ACER_DEFAULT_WIRELESS 0
221 #define ACER_DEFAULT_BLUETOOTH 0
222 #define ACER_DEFAULT_MAILLED 0
223 #define ACER_DEFAULT_THREEG 0
224
225 static int max_brightness = 0xF;
226
227 static int mailled = -1;
228 static int brightness = -1;
229 static int threeg = -1;
230 static int force_series;
231 static bool ec_raw_mode;
232 static bool has_type_aa;
233 static u16 commun_func_bitmap;
234 static u8 commun_fn_key_number;
235
236 module_param(mailled, int, 0444);
237 module_param(brightness, int, 0444);
238 module_param(threeg, int, 0444);
239 module_param(force_series, int, 0444);
240 module_param(ec_raw_mode, bool, 0444);
241 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
242 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
243 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
244 MODULE_PARM_DESC(force_series, "Force a different laptop series");
245 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
246
247 struct acer_data {
248 int mailled;
249 int threeg;
250 int brightness;
251 };
252
253 struct acer_debug {
254 struct dentry *root;
255 struct dentry *devices;
256 u32 wmid_devices;
257 };
258
259 static struct rfkill *wireless_rfkill;
260 static struct rfkill *bluetooth_rfkill;
261 static struct rfkill *threeg_rfkill;
262 static bool rfkill_inited;
263
264 /* Each low-level interface must define at least some of the following */
265 struct wmi_interface {
266 /* The WMI device type */
267 u32 type;
268
269 /* The capabilities this interface provides */
270 u32 capability;
271
272 /* Private data for the current interface */
273 struct acer_data data;
274
275 /* debugfs entries associated with this interface */
276 struct acer_debug debug;
277 };
278
279 /* The static interface pointer, points to the currently detected interface */
280 static struct wmi_interface *interface;
281
282 /*
283 * Embedded Controller quirks
284 * Some laptops require us to directly access the EC to either enable or query
285 * features that are not available through WMI.
286 */
287
288 struct quirk_entry {
289 u8 wireless;
290 u8 mailled;
291 s8 brightness;
292 u8 bluetooth;
293 };
294
295 static struct quirk_entry *quirks;
296
297 static void __init set_quirks(void)
298 {
299 if (!interface)
300 return;
301
302 if (quirks->mailled)
303 interface->capability |= ACER_CAP_MAILLED;
304
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
307 }
308
309 static int __init dmi_matched(const struct dmi_system_id *dmi)
310 {
311 quirks = dmi->driver_data;
312 return 1;
313 }
314
315 static struct quirk_entry quirk_unknown = {
316 };
317
318 static struct quirk_entry quirk_acer_aspire_1520 = {
319 .brightness = -1,
320 };
321
322 static struct quirk_entry quirk_acer_travelmate_2490 = {
323 .mailled = 1,
324 };
325
326 /* This AMW0 laptop has no bluetooth */
327 static struct quirk_entry quirk_medion_md_98300 = {
328 .wireless = 1,
329 };
330
331 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
332 .wireless = 2,
333 };
334
335 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
336 .wireless = 3,
337 };
338
339 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
340 static const struct dmi_system_id acer_blacklist[] __initconst = {
341 {
342 .ident = "Acer Aspire One (SSD)",
343 .matches = {
344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
346 },
347 },
348 {
349 .ident = "Acer Aspire One (HDD)",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
353 },
354 },
355 {}
356 };
357
358 static const struct dmi_system_id acer_quirks[] __initconst = {
359 {
360 .callback = dmi_matched,
361 .ident = "Acer Aspire 1360",
362 .matches = {
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
365 },
366 .driver_data = &quirk_acer_aspire_1520,
367 },
368 {
369 .callback = dmi_matched,
370 .ident = "Acer Aspire 1520",
371 .matches = {
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
374 },
375 .driver_data = &quirk_acer_aspire_1520,
376 },
377 {
378 .callback = dmi_matched,
379 .ident = "Acer Aspire 3100",
380 .matches = {
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
383 },
384 .driver_data = &quirk_acer_travelmate_2490,
385 },
386 {
387 .callback = dmi_matched,
388 .ident = "Acer Aspire 3610",
389 .matches = {
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
392 },
393 .driver_data = &quirk_acer_travelmate_2490,
394 },
395 {
396 .callback = dmi_matched,
397 .ident = "Acer Aspire 5100",
398 .matches = {
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
401 },
402 .driver_data = &quirk_acer_travelmate_2490,
403 },
404 {
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 5610",
407 .matches = {
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
410 },
411 .driver_data = &quirk_acer_travelmate_2490,
412 },
413 {
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 5630",
416 .matches = {
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
419 },
420 .driver_data = &quirk_acer_travelmate_2490,
421 },
422 {
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 5650",
425 .matches = {
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
428 },
429 .driver_data = &quirk_acer_travelmate_2490,
430 },
431 {
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 5680",
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
437 },
438 .driver_data = &quirk_acer_travelmate_2490,
439 },
440 {
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 9110",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
446 },
447 .driver_data = &quirk_acer_travelmate_2490,
448 },
449 {
450 .callback = dmi_matched,
451 .ident = "Acer TravelMate 2490",
452 .matches = {
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
455 },
456 .driver_data = &quirk_acer_travelmate_2490,
457 },
458 {
459 .callback = dmi_matched,
460 .ident = "Acer TravelMate 4200",
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
464 },
465 .driver_data = &quirk_acer_travelmate_2490,
466 },
467 {
468 .callback = dmi_matched,
469 .ident = "Fujitsu Siemens Amilo Li 1718",
470 .matches = {
471 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
473 },
474 .driver_data = &quirk_fujitsu_amilo_li_1718,
475 },
476 {
477 .callback = dmi_matched,
478 .ident = "Medion MD 98300",
479 .matches = {
480 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
482 },
483 .driver_data = &quirk_medion_md_98300,
484 },
485 {
486 .callback = dmi_matched,
487 .ident = "Lenovo Ideapad S205",
488 .matches = {
489 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
491 },
492 .driver_data = &quirk_lenovo_ideapad_s205,
493 },
494 {
495 .callback = dmi_matched,
496 .ident = "Lenovo Ideapad S205 (Brazos)",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
500 },
501 .driver_data = &quirk_lenovo_ideapad_s205,
502 },
503 {
504 .callback = dmi_matched,
505 .ident = "Lenovo 3000 N200",
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
509 },
510 .driver_data = &quirk_fujitsu_amilo_li_1718,
511 },
512 {
513 .callback = dmi_matched,
514 .ident = "Lenovo Ideapad S205-10382JG",
515 .matches = {
516 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
518 },
519 .driver_data = &quirk_lenovo_ideapad_s205,
520 },
521 {
522 .callback = dmi_matched,
523 .ident = "Lenovo Ideapad S205-1038DPG",
524 .matches = {
525 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
526 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
527 },
528 .driver_data = &quirk_lenovo_ideapad_s205,
529 },
530 {}
531 };
532
533 static int __init
534 video_set_backlight_video_vendor(const struct dmi_system_id *d)
535 {
536 interface->capability &= ~ACER_CAP_BRIGHTNESS;
537 pr_info("Brightness must be controlled by generic video driver\n");
538 return 0;
539 }
540
541 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
542 {
543 .callback = video_set_backlight_video_vendor,
544 .ident = "Acer TravelMate 4750",
545 .matches = {
546 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
548 },
549 },
550 {
551 .callback = video_set_backlight_video_vendor,
552 .ident = "Acer Extensa 5235",
553 .matches = {
554 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
556 },
557 },
558 {
559 .callback = video_set_backlight_video_vendor,
560 .ident = "Acer TravelMate 5760",
561 .matches = {
562 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
564 },
565 },
566 {
567 .callback = video_set_backlight_video_vendor,
568 .ident = "Acer Aspire 5750",
569 .matches = {
570 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
571 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
572 },
573 },
574 {
575 .callback = video_set_backlight_video_vendor,
576 .ident = "Acer Aspire 5741",
577 .matches = {
578 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
580 },
581 },
582 {
583 /*
584 * Note no video_set_backlight_video_vendor, we must use the
585 * acer interface, as there is no native backlight interface.
586 */
587 .ident = "Acer KAV80",
588 .matches = {
589 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
590 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
591 },
592 },
593 {}
594 };
595
596 /* Find which quirks are needed for a particular vendor/ model pair */
597 static void __init find_quirks(void)
598 {
599 if (!force_series) {
600 dmi_check_system(acer_quirks);
601 } else if (force_series == 2490) {
602 quirks = &quirk_acer_travelmate_2490;
603 }
604
605 if (quirks == NULL)
606 quirks = &quirk_unknown;
607
608 set_quirks();
609 }
610
611 /*
612 * General interface convenience methods
613 */
614
615 static bool has_cap(u32 cap)
616 {
617 if ((interface->capability & cap) != 0)
618 return 1;
619
620 return 0;
621 }
622
623 /*
624 * AMW0 (V1) interface
625 */
626 struct wmab_args {
627 u32 eax;
628 u32 ebx;
629 u32 ecx;
630 u32 edx;
631 };
632
633 struct wmab_ret {
634 u32 eax;
635 u32 ebx;
636 u32 ecx;
637 u32 edx;
638 u32 eex;
639 };
640
641 static acpi_status wmab_execute(struct wmab_args *regbuf,
642 struct acpi_buffer *result)
643 {
644 struct acpi_buffer input;
645 acpi_status status;
646 input.length = sizeof(struct wmab_args);
647 input.pointer = (u8 *)regbuf;
648
649 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
650
651 return status;
652 }
653
654 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
655 {
656 int err;
657 u8 result;
658
659 switch (cap) {
660 case ACER_CAP_MAILLED:
661 switch (quirks->mailled) {
662 default:
663 err = ec_read(0xA, &result);
664 if (err)
665 return AE_ERROR;
666 *value = (result >> 7) & 0x1;
667 return AE_OK;
668 }
669 break;
670 case ACER_CAP_WIRELESS:
671 switch (quirks->wireless) {
672 case 1:
673 err = ec_read(0x7B, &result);
674 if (err)
675 return AE_ERROR;
676 *value = result & 0x1;
677 return AE_OK;
678 case 2:
679 err = ec_read(0x71, &result);
680 if (err)
681 return AE_ERROR;
682 *value = result & 0x1;
683 return AE_OK;
684 case 3:
685 err = ec_read(0x78, &result);
686 if (err)
687 return AE_ERROR;
688 *value = result & 0x1;
689 return AE_OK;
690 default:
691 err = ec_read(0xA, &result);
692 if (err)
693 return AE_ERROR;
694 *value = (result >> 2) & 0x1;
695 return AE_OK;
696 }
697 break;
698 case ACER_CAP_BLUETOOTH:
699 switch (quirks->bluetooth) {
700 default:
701 err = ec_read(0xA, &result);
702 if (err)
703 return AE_ERROR;
704 *value = (result >> 4) & 0x1;
705 return AE_OK;
706 }
707 break;
708 case ACER_CAP_BRIGHTNESS:
709 switch (quirks->brightness) {
710 default:
711 err = ec_read(0x83, &result);
712 if (err)
713 return AE_ERROR;
714 *value = result;
715 return AE_OK;
716 }
717 break;
718 default:
719 return AE_ERROR;
720 }
721 return AE_OK;
722 }
723
724 static acpi_status AMW0_set_u32(u32 value, u32 cap)
725 {
726 struct wmab_args args;
727
728 args.eax = ACER_AMW0_WRITE;
729 args.ebx = value ? (1<<8) : 0;
730 args.ecx = args.edx = 0;
731
732 switch (cap) {
733 case ACER_CAP_MAILLED:
734 if (value > 1)
735 return AE_BAD_PARAMETER;
736 args.ebx |= ACER_AMW0_MAILLED_MASK;
737 break;
738 case ACER_CAP_WIRELESS:
739 if (value > 1)
740 return AE_BAD_PARAMETER;
741 args.ebx |= ACER_AMW0_WIRELESS_MASK;
742 break;
743 case ACER_CAP_BLUETOOTH:
744 if (value > 1)
745 return AE_BAD_PARAMETER;
746 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
747 break;
748 case ACER_CAP_BRIGHTNESS:
749 if (value > max_brightness)
750 return AE_BAD_PARAMETER;
751 switch (quirks->brightness) {
752 default:
753 return ec_write(0x83, value);
754 break;
755 }
756 default:
757 return AE_ERROR;
758 }
759
760 /* Actually do the set */
761 return wmab_execute(&args, NULL);
762 }
763
764 static acpi_status __init AMW0_find_mailled(void)
765 {
766 struct wmab_args args;
767 struct wmab_ret ret;
768 acpi_status status = AE_OK;
769 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
770 union acpi_object *obj;
771
772 args.eax = 0x86;
773 args.ebx = args.ecx = args.edx = 0;
774
775 status = wmab_execute(&args, &out);
776 if (ACPI_FAILURE(status))
777 return status;
778
779 obj = (union acpi_object *) out.pointer;
780 if (obj && obj->type == ACPI_TYPE_BUFFER &&
781 obj->buffer.length == sizeof(struct wmab_ret)) {
782 ret = *((struct wmab_ret *) obj->buffer.pointer);
783 } else {
784 kfree(out.pointer);
785 return AE_ERROR;
786 }
787
788 if (ret.eex & 0x1)
789 interface->capability |= ACER_CAP_MAILLED;
790
791 kfree(out.pointer);
792
793 return AE_OK;
794 }
795
796 static int AMW0_set_cap_acpi_check_device_found __initdata;
797
798 static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
799 u32 level, void *context, void **retval)
800 {
801 AMW0_set_cap_acpi_check_device_found = 1;
802 return AE_OK;
803 }
804
805 static const struct acpi_device_id norfkill_ids[] __initconst = {
806 { "VPC2004", 0},
807 { "IBM0068", 0},
808 { "LEN0068", 0},
809 { "SNY5001", 0}, /* sony-laptop in charge */
810 { "", 0},
811 };
812
813 static int __init AMW0_set_cap_acpi_check_device(void)
814 {
815 const struct acpi_device_id *id;
816
817 for (id = norfkill_ids; id->id[0]; id++)
818 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
819 NULL, NULL);
820 return AMW0_set_cap_acpi_check_device_found;
821 }
822
823 static acpi_status __init AMW0_set_capabilities(void)
824 {
825 struct wmab_args args;
826 struct wmab_ret ret;
827 acpi_status status;
828 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
829 union acpi_object *obj;
830
831 /*
832 * On laptops with this strange GUID (non Acer), normal probing doesn't
833 * work.
834 */
835 if (wmi_has_guid(AMW0_GUID2)) {
836 if ((quirks != &quirk_unknown) ||
837 !AMW0_set_cap_acpi_check_device())
838 interface->capability |= ACER_CAP_WIRELESS;
839 return AE_OK;
840 }
841
842 args.eax = ACER_AMW0_WRITE;
843 args.ecx = args.edx = 0;
844
845 args.ebx = 0xa2 << 8;
846 args.ebx |= ACER_AMW0_WIRELESS_MASK;
847
848 status = wmab_execute(&args, &out);
849 if (ACPI_FAILURE(status))
850 return status;
851
852 obj = out.pointer;
853 if (obj && obj->type == ACPI_TYPE_BUFFER &&
854 obj->buffer.length == sizeof(struct wmab_ret)) {
855 ret = *((struct wmab_ret *) obj->buffer.pointer);
856 } else {
857 status = AE_ERROR;
858 goto out;
859 }
860
861 if (ret.eax & 0x1)
862 interface->capability |= ACER_CAP_WIRELESS;
863
864 args.ebx = 2 << 8;
865 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
866
867 /*
868 * It's ok to use existing buffer for next wmab_execute call.
869 * But we need to kfree(out.pointer) if next wmab_execute fail.
870 */
871 status = wmab_execute(&args, &out);
872 if (ACPI_FAILURE(status))
873 goto out;
874
875 obj = (union acpi_object *) out.pointer;
876 if (obj && obj->type == ACPI_TYPE_BUFFER
877 && obj->buffer.length == sizeof(struct wmab_ret)) {
878 ret = *((struct wmab_ret *) obj->buffer.pointer);
879 } else {
880 status = AE_ERROR;
881 goto out;
882 }
883
884 if (ret.eax & 0x1)
885 interface->capability |= ACER_CAP_BLUETOOTH;
886
887 /*
888 * This appears to be safe to enable, since all Wistron based laptops
889 * appear to use the same EC register for brightness, even if they
890 * differ for wireless, etc
891 */
892 if (quirks->brightness >= 0)
893 interface->capability |= ACER_CAP_BRIGHTNESS;
894
895 status = AE_OK;
896 out:
897 kfree(out.pointer);
898 return status;
899 }
900
901 static struct wmi_interface AMW0_interface = {
902 .type = ACER_AMW0,
903 };
904
905 static struct wmi_interface AMW0_V2_interface = {
906 .type = ACER_AMW0_V2,
907 };
908
909 /*
910 * New interface (The WMID interface)
911 */
912 static acpi_status
913 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
914 {
915 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
916 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
917 union acpi_object *obj;
918 u32 tmp = 0;
919 acpi_status status;
920
921 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
922
923 if (ACPI_FAILURE(status))
924 return status;
925
926 obj = (union acpi_object *) result.pointer;
927 if (obj) {
928 if (obj->type == ACPI_TYPE_BUFFER &&
929 (obj->buffer.length == sizeof(u32) ||
930 obj->buffer.length == sizeof(u64))) {
931 tmp = *((u32 *) obj->buffer.pointer);
932 } else if (obj->type == ACPI_TYPE_INTEGER) {
933 tmp = (u32) obj->integer.value;
934 }
935 }
936
937 if (out)
938 *out = tmp;
939
940 kfree(result.pointer);
941
942 return status;
943 }
944
945 static acpi_status WMID_get_u32(u32 *value, u32 cap)
946 {
947 acpi_status status;
948 u8 tmp;
949 u32 result, method_id = 0;
950
951 switch (cap) {
952 case ACER_CAP_WIRELESS:
953 method_id = ACER_WMID_GET_WIRELESS_METHODID;
954 break;
955 case ACER_CAP_BLUETOOTH:
956 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
957 break;
958 case ACER_CAP_BRIGHTNESS:
959 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
960 break;
961 case ACER_CAP_THREEG:
962 method_id = ACER_WMID_GET_THREEG_METHODID;
963 break;
964 case ACER_CAP_MAILLED:
965 if (quirks->mailled == 1) {
966 ec_read(0x9f, &tmp);
967 *value = tmp & 0x1;
968 return 0;
969 }
970 default:
971 return AE_ERROR;
972 }
973 status = WMI_execute_u32(method_id, 0, &result);
974
975 if (ACPI_SUCCESS(status))
976 *value = (u8)result;
977
978 return status;
979 }
980
981 static acpi_status WMID_set_u32(u32 value, u32 cap)
982 {
983 u32 method_id = 0;
984 char param;
985
986 switch (cap) {
987 case ACER_CAP_BRIGHTNESS:
988 if (value > max_brightness)
989 return AE_BAD_PARAMETER;
990 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
991 break;
992 case ACER_CAP_WIRELESS:
993 if (value > 1)
994 return AE_BAD_PARAMETER;
995 method_id = ACER_WMID_SET_WIRELESS_METHODID;
996 break;
997 case ACER_CAP_BLUETOOTH:
998 if (value > 1)
999 return AE_BAD_PARAMETER;
1000 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1001 break;
1002 case ACER_CAP_THREEG:
1003 if (value > 1)
1004 return AE_BAD_PARAMETER;
1005 method_id = ACER_WMID_SET_THREEG_METHODID;
1006 break;
1007 case ACER_CAP_MAILLED:
1008 if (value > 1)
1009 return AE_BAD_PARAMETER;
1010 if (quirks->mailled == 1) {
1011 param = value ? 0x92 : 0x93;
1012 i8042_lock_chip();
1013 i8042_command(&param, 0x1059);
1014 i8042_unlock_chip();
1015 return 0;
1016 }
1017 break;
1018 default:
1019 return AE_ERROR;
1020 }
1021 return WMI_execute_u32(method_id, (u32)value, NULL);
1022 }
1023
1024 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1025 {
1026 struct wmid3_gds_return_value return_value;
1027 acpi_status status;
1028 union acpi_object *obj;
1029 struct wmid3_gds_get_input_param params = {
1030 .function_num = 0x1,
1031 .hotkey_number = commun_fn_key_number,
1032 .devices = device,
1033 };
1034 struct acpi_buffer input = {
1035 sizeof(struct wmid3_gds_get_input_param),
1036 &params
1037 };
1038 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1039
1040 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1041 if (ACPI_FAILURE(status))
1042 return status;
1043
1044 obj = output.pointer;
1045
1046 if (!obj)
1047 return AE_ERROR;
1048 else if (obj->type != ACPI_TYPE_BUFFER) {
1049 kfree(obj);
1050 return AE_ERROR;
1051 }
1052 if (obj->buffer.length != 8) {
1053 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1054 kfree(obj);
1055 return AE_ERROR;
1056 }
1057
1058 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1059 kfree(obj);
1060
1061 if (return_value.error_code || return_value.ec_return_value)
1062 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1063 device,
1064 return_value.error_code,
1065 return_value.ec_return_value);
1066 else
1067 *value = !!(return_value.devices & device);
1068
1069 return status;
1070 }
1071
1072 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1073 {
1074 u16 device;
1075
1076 switch (cap) {
1077 case ACER_CAP_WIRELESS:
1078 device = ACER_WMID3_GDS_WIRELESS;
1079 break;
1080 case ACER_CAP_BLUETOOTH:
1081 device = ACER_WMID3_GDS_BLUETOOTH;
1082 break;
1083 case ACER_CAP_THREEG:
1084 device = ACER_WMID3_GDS_THREEG;
1085 break;
1086 default:
1087 return AE_ERROR;
1088 }
1089 return wmid3_get_device_status(value, device);
1090 }
1091
1092 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1093 {
1094 struct wmid3_gds_return_value return_value;
1095 acpi_status status;
1096 union acpi_object *obj;
1097 u16 devices;
1098 struct wmid3_gds_get_input_param get_params = {
1099 .function_num = 0x1,
1100 .hotkey_number = commun_fn_key_number,
1101 .devices = commun_func_bitmap,
1102 };
1103 struct acpi_buffer get_input = {
1104 sizeof(struct wmid3_gds_get_input_param),
1105 &get_params
1106 };
1107 struct wmid3_gds_set_input_param set_params = {
1108 .function_num = 0x2,
1109 .hotkey_number = commun_fn_key_number,
1110 .devices = commun_func_bitmap,
1111 };
1112 struct acpi_buffer set_input = {
1113 sizeof(struct wmid3_gds_set_input_param),
1114 &set_params
1115 };
1116 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1117 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1118
1119 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1120 if (ACPI_FAILURE(status))
1121 return status;
1122
1123 obj = output.pointer;
1124
1125 if (!obj)
1126 return AE_ERROR;
1127 else if (obj->type != ACPI_TYPE_BUFFER) {
1128 kfree(obj);
1129 return AE_ERROR;
1130 }
1131 if (obj->buffer.length != 8) {
1132 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1133 kfree(obj);
1134 return AE_ERROR;
1135 }
1136
1137 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1138 kfree(obj);
1139
1140 if (return_value.error_code || return_value.ec_return_value) {
1141 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1142 return_value.error_code,
1143 return_value.ec_return_value);
1144 return status;
1145 }
1146
1147 devices = return_value.devices;
1148 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1149
1150 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1151 if (ACPI_FAILURE(status))
1152 return status;
1153
1154 obj = output2.pointer;
1155
1156 if (!obj)
1157 return AE_ERROR;
1158 else if (obj->type != ACPI_TYPE_BUFFER) {
1159 kfree(obj);
1160 return AE_ERROR;
1161 }
1162 if (obj->buffer.length != 4) {
1163 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1164 kfree(obj);
1165 return AE_ERROR;
1166 }
1167
1168 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1169 kfree(obj);
1170
1171 if (return_value.error_code || return_value.ec_return_value)
1172 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1173 return_value.error_code,
1174 return_value.ec_return_value);
1175
1176 return status;
1177 }
1178
1179 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1180 {
1181 u16 device;
1182
1183 switch (cap) {
1184 case ACER_CAP_WIRELESS:
1185 device = ACER_WMID3_GDS_WIRELESS;
1186 break;
1187 case ACER_CAP_BLUETOOTH:
1188 device = ACER_WMID3_GDS_BLUETOOTH;
1189 break;
1190 case ACER_CAP_THREEG:
1191 device = ACER_WMID3_GDS_THREEG;
1192 break;
1193 default:
1194 return AE_ERROR;
1195 }
1196 return wmid3_set_device_status(value, device);
1197 }
1198
1199 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1200 {
1201 struct hotkey_function_type_aa *type_aa;
1202
1203 /* We are looking for OEM-specific Type AAh */
1204 if (header->type != 0xAA)
1205 return;
1206
1207 has_type_aa = true;
1208 type_aa = (struct hotkey_function_type_aa *) header;
1209
1210 pr_info("Function bitmap for Communication Button: 0x%x\n",
1211 type_aa->commun_func_bitmap);
1212 commun_func_bitmap = type_aa->commun_func_bitmap;
1213
1214 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1215 interface->capability |= ACER_CAP_WIRELESS;
1216 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1217 interface->capability |= ACER_CAP_THREEG;
1218 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1219 interface->capability |= ACER_CAP_BLUETOOTH;
1220
1221 commun_fn_key_number = type_aa->commun_fn_key_number;
1222 }
1223
1224 static acpi_status __init WMID_set_capabilities(void)
1225 {
1226 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1227 union acpi_object *obj;
1228 acpi_status status;
1229 u32 devices;
1230
1231 status = wmi_query_block(WMID_GUID2, 1, &out);
1232 if (ACPI_FAILURE(status))
1233 return status;
1234
1235 obj = (union acpi_object *) out.pointer;
1236 if (obj) {
1237 if (obj->type == ACPI_TYPE_BUFFER &&
1238 (obj->buffer.length == sizeof(u32) ||
1239 obj->buffer.length == sizeof(u64))) {
1240 devices = *((u32 *) obj->buffer.pointer);
1241 } else if (obj->type == ACPI_TYPE_INTEGER) {
1242 devices = (u32) obj->integer.value;
1243 } else {
1244 kfree(out.pointer);
1245 return AE_ERROR;
1246 }
1247 } else {
1248 kfree(out.pointer);
1249 return AE_ERROR;
1250 }
1251
1252 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1253 if (devices & 0x07)
1254 interface->capability |= ACER_CAP_WIRELESS;
1255 if (devices & 0x40)
1256 interface->capability |= ACER_CAP_THREEG;
1257 if (devices & 0x10)
1258 interface->capability |= ACER_CAP_BLUETOOTH;
1259
1260 if (!(devices & 0x20))
1261 max_brightness = 0x9;
1262
1263 kfree(out.pointer);
1264 return status;
1265 }
1266
1267 static struct wmi_interface wmid_interface = {
1268 .type = ACER_WMID,
1269 };
1270
1271 static struct wmi_interface wmid_v2_interface = {
1272 .type = ACER_WMID_v2,
1273 };
1274
1275 /*
1276 * Generic Device (interface-independent)
1277 */
1278
1279 static acpi_status get_u32(u32 *value, u32 cap)
1280 {
1281 acpi_status status = AE_ERROR;
1282
1283 switch (interface->type) {
1284 case ACER_AMW0:
1285 status = AMW0_get_u32(value, cap);
1286 break;
1287 case ACER_AMW0_V2:
1288 if (cap == ACER_CAP_MAILLED) {
1289 status = AMW0_get_u32(value, cap);
1290 break;
1291 }
1292 case ACER_WMID:
1293 status = WMID_get_u32(value, cap);
1294 break;
1295 case ACER_WMID_v2:
1296 if (cap & (ACER_CAP_WIRELESS |
1297 ACER_CAP_BLUETOOTH |
1298 ACER_CAP_THREEG))
1299 status = wmid_v2_get_u32(value, cap);
1300 else if (wmi_has_guid(WMID_GUID2))
1301 status = WMID_get_u32(value, cap);
1302 break;
1303 }
1304
1305 return status;
1306 }
1307
1308 static acpi_status set_u32(u32 value, u32 cap)
1309 {
1310 acpi_status status;
1311
1312 if (interface->capability & cap) {
1313 switch (interface->type) {
1314 case ACER_AMW0:
1315 return AMW0_set_u32(value, cap);
1316 case ACER_AMW0_V2:
1317 if (cap == ACER_CAP_MAILLED)
1318 return AMW0_set_u32(value, cap);
1319
1320 /*
1321 * On some models, some WMID methods don't toggle
1322 * properly. For those cases, we want to run the AMW0
1323 * method afterwards to be certain we've really toggled
1324 * the device state.
1325 */
1326 if (cap == ACER_CAP_WIRELESS ||
1327 cap == ACER_CAP_BLUETOOTH) {
1328 status = WMID_set_u32(value, cap);
1329 if (ACPI_FAILURE(status))
1330 return status;
1331
1332 return AMW0_set_u32(value, cap);
1333 }
1334 case ACER_WMID:
1335 return WMID_set_u32(value, cap);
1336 case ACER_WMID_v2:
1337 if (cap & (ACER_CAP_WIRELESS |
1338 ACER_CAP_BLUETOOTH |
1339 ACER_CAP_THREEG))
1340 return wmid_v2_set_u32(value, cap);
1341 else if (wmi_has_guid(WMID_GUID2))
1342 return WMID_set_u32(value, cap);
1343 default:
1344 return AE_BAD_PARAMETER;
1345 }
1346 }
1347 return AE_BAD_PARAMETER;
1348 }
1349
1350 static void __init acer_commandline_init(void)
1351 {
1352 /*
1353 * These will all fail silently if the value given is invalid, or the
1354 * capability isn't available on the given interface
1355 */
1356 if (mailled >= 0)
1357 set_u32(mailled, ACER_CAP_MAILLED);
1358 if (!has_type_aa && threeg >= 0)
1359 set_u32(threeg, ACER_CAP_THREEG);
1360 if (brightness >= 0)
1361 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1362 }
1363
1364 /*
1365 * LED device (Mail LED only, no other LEDs known yet)
1366 */
1367 static void mail_led_set(struct led_classdev *led_cdev,
1368 enum led_brightness value)
1369 {
1370 set_u32(value, ACER_CAP_MAILLED);
1371 }
1372
1373 static struct led_classdev mail_led = {
1374 .name = "acer-wmi::mail",
1375 .brightness_set = mail_led_set,
1376 };
1377
1378 static int acer_led_init(struct device *dev)
1379 {
1380 return led_classdev_register(dev, &mail_led);
1381 }
1382
1383 static void acer_led_exit(void)
1384 {
1385 set_u32(LED_OFF, ACER_CAP_MAILLED);
1386 led_classdev_unregister(&mail_led);
1387 }
1388
1389 /*
1390 * Backlight device
1391 */
1392 static struct backlight_device *acer_backlight_device;
1393
1394 static int read_brightness(struct backlight_device *bd)
1395 {
1396 u32 value;
1397 get_u32(&value, ACER_CAP_BRIGHTNESS);
1398 return value;
1399 }
1400
1401 static int update_bl_status(struct backlight_device *bd)
1402 {
1403 int intensity = bd->props.brightness;
1404
1405 if (bd->props.power != FB_BLANK_UNBLANK)
1406 intensity = 0;
1407 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1408 intensity = 0;
1409
1410 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1411
1412 return 0;
1413 }
1414
1415 static const struct backlight_ops acer_bl_ops = {
1416 .get_brightness = read_brightness,
1417 .update_status = update_bl_status,
1418 };
1419
1420 static int acer_backlight_init(struct device *dev)
1421 {
1422 struct backlight_properties props;
1423 struct backlight_device *bd;
1424
1425 memset(&props, 0, sizeof(struct backlight_properties));
1426 props.type = BACKLIGHT_PLATFORM;
1427 props.max_brightness = max_brightness;
1428 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1429 &props);
1430 if (IS_ERR(bd)) {
1431 pr_err("Could not register Acer backlight device\n");
1432 acer_backlight_device = NULL;
1433 return PTR_ERR(bd);
1434 }
1435
1436 acer_backlight_device = bd;
1437
1438 bd->props.power = FB_BLANK_UNBLANK;
1439 bd->props.brightness = read_brightness(bd);
1440 backlight_update_status(bd);
1441 return 0;
1442 }
1443
1444 static void acer_backlight_exit(void)
1445 {
1446 backlight_device_unregister(acer_backlight_device);
1447 }
1448
1449 /*
1450 * Accelerometer device
1451 */
1452 static acpi_handle gsensor_handle;
1453
1454 static int acer_gsensor_init(void)
1455 {
1456 acpi_status status;
1457 struct acpi_buffer output;
1458 union acpi_object out_obj;
1459
1460 output.length = sizeof(out_obj);
1461 output.pointer = &out_obj;
1462 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1463 if (ACPI_FAILURE(status))
1464 return -1;
1465
1466 return 0;
1467 }
1468
1469 static int acer_gsensor_open(struct input_dev *input)
1470 {
1471 return acer_gsensor_init();
1472 }
1473
1474 static int acer_gsensor_event(void)
1475 {
1476 acpi_status status;
1477 struct acpi_buffer output;
1478 union acpi_object out_obj[5];
1479
1480 if (!has_cap(ACER_CAP_ACCEL))
1481 return -1;
1482
1483 output.length = sizeof(out_obj);
1484 output.pointer = out_obj;
1485
1486 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1487 if (ACPI_FAILURE(status))
1488 return -1;
1489
1490 if (out_obj->package.count != 4)
1491 return -1;
1492
1493 input_report_abs(acer_wmi_accel_dev, ABS_X,
1494 (s16)out_obj->package.elements[0].integer.value);
1495 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1496 (s16)out_obj->package.elements[1].integer.value);
1497 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1498 (s16)out_obj->package.elements[2].integer.value);
1499 input_sync(acer_wmi_accel_dev);
1500 return 0;
1501 }
1502
1503 /*
1504 * Rfkill devices
1505 */
1506 static void acer_rfkill_update(struct work_struct *ignored);
1507 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1508 static void acer_rfkill_update(struct work_struct *ignored)
1509 {
1510 u32 state;
1511 acpi_status status;
1512
1513 if (has_cap(ACER_CAP_WIRELESS)) {
1514 status = get_u32(&state, ACER_CAP_WIRELESS);
1515 if (ACPI_SUCCESS(status)) {
1516 if (quirks->wireless == 3)
1517 rfkill_set_hw_state(wireless_rfkill, !state);
1518 else
1519 rfkill_set_sw_state(wireless_rfkill, !state);
1520 }
1521 }
1522
1523 if (has_cap(ACER_CAP_BLUETOOTH)) {
1524 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1525 if (ACPI_SUCCESS(status))
1526 rfkill_set_sw_state(bluetooth_rfkill, !state);
1527 }
1528
1529 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1530 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1531 if (ACPI_SUCCESS(status))
1532 rfkill_set_sw_state(threeg_rfkill, !state);
1533 }
1534
1535 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1536 }
1537
1538 static int acer_rfkill_set(void *data, bool blocked)
1539 {
1540 acpi_status status;
1541 u32 cap = (unsigned long)data;
1542
1543 if (rfkill_inited) {
1544 status = set_u32(!blocked, cap);
1545 if (ACPI_FAILURE(status))
1546 return -ENODEV;
1547 }
1548
1549 return 0;
1550 }
1551
1552 static const struct rfkill_ops acer_rfkill_ops = {
1553 .set_block = acer_rfkill_set,
1554 };
1555
1556 static struct rfkill *acer_rfkill_register(struct device *dev,
1557 enum rfkill_type type,
1558 char *name, u32 cap)
1559 {
1560 int err;
1561 struct rfkill *rfkill_dev;
1562 u32 state;
1563 acpi_status status;
1564
1565 rfkill_dev = rfkill_alloc(name, dev, type,
1566 &acer_rfkill_ops,
1567 (void *)(unsigned long)cap);
1568 if (!rfkill_dev)
1569 return ERR_PTR(-ENOMEM);
1570
1571 status = get_u32(&state, cap);
1572
1573 err = rfkill_register(rfkill_dev);
1574 if (err) {
1575 rfkill_destroy(rfkill_dev);
1576 return ERR_PTR(err);
1577 }
1578
1579 if (ACPI_SUCCESS(status))
1580 rfkill_set_sw_state(rfkill_dev, !state);
1581
1582 return rfkill_dev;
1583 }
1584
1585 static int acer_rfkill_init(struct device *dev)
1586 {
1587 int err;
1588
1589 if (has_cap(ACER_CAP_WIRELESS)) {
1590 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1591 "acer-wireless", ACER_CAP_WIRELESS);
1592 if (IS_ERR(wireless_rfkill)) {
1593 err = PTR_ERR(wireless_rfkill);
1594 goto error_wireless;
1595 }
1596 }
1597
1598 if (has_cap(ACER_CAP_BLUETOOTH)) {
1599 bluetooth_rfkill = acer_rfkill_register(dev,
1600 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1601 ACER_CAP_BLUETOOTH);
1602 if (IS_ERR(bluetooth_rfkill)) {
1603 err = PTR_ERR(bluetooth_rfkill);
1604 goto error_bluetooth;
1605 }
1606 }
1607
1608 if (has_cap(ACER_CAP_THREEG)) {
1609 threeg_rfkill = acer_rfkill_register(dev,
1610 RFKILL_TYPE_WWAN, "acer-threeg",
1611 ACER_CAP_THREEG);
1612 if (IS_ERR(threeg_rfkill)) {
1613 err = PTR_ERR(threeg_rfkill);
1614 goto error_threeg;
1615 }
1616 }
1617
1618 rfkill_inited = true;
1619
1620 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1621 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1622 schedule_delayed_work(&acer_rfkill_work,
1623 round_jiffies_relative(HZ));
1624
1625 return 0;
1626
1627 error_threeg:
1628 if (has_cap(ACER_CAP_BLUETOOTH)) {
1629 rfkill_unregister(bluetooth_rfkill);
1630 rfkill_destroy(bluetooth_rfkill);
1631 }
1632 error_bluetooth:
1633 if (has_cap(ACER_CAP_WIRELESS)) {
1634 rfkill_unregister(wireless_rfkill);
1635 rfkill_destroy(wireless_rfkill);
1636 }
1637 error_wireless:
1638 return err;
1639 }
1640
1641 static void acer_rfkill_exit(void)
1642 {
1643 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1644 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1645 cancel_delayed_work_sync(&acer_rfkill_work);
1646
1647 if (has_cap(ACER_CAP_WIRELESS)) {
1648 rfkill_unregister(wireless_rfkill);
1649 rfkill_destroy(wireless_rfkill);
1650 }
1651
1652 if (has_cap(ACER_CAP_BLUETOOTH)) {
1653 rfkill_unregister(bluetooth_rfkill);
1654 rfkill_destroy(bluetooth_rfkill);
1655 }
1656
1657 if (has_cap(ACER_CAP_THREEG)) {
1658 rfkill_unregister(threeg_rfkill);
1659 rfkill_destroy(threeg_rfkill);
1660 }
1661 return;
1662 }
1663
1664 /*
1665 * sysfs interface
1666 */
1667 static ssize_t show_bool_threeg(struct device *dev,
1668 struct device_attribute *attr, char *buf)
1669 {
1670 u32 result; \
1671 acpi_status status;
1672
1673 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1674 current->comm);
1675 status = get_u32(&result, ACER_CAP_THREEG);
1676 if (ACPI_SUCCESS(status))
1677 return sprintf(buf, "%u\n", result);
1678 return sprintf(buf, "Read error\n");
1679 }
1680
1681 static ssize_t set_bool_threeg(struct device *dev,
1682 struct device_attribute *attr, const char *buf, size_t count)
1683 {
1684 u32 tmp = simple_strtoul(buf, NULL, 10);
1685 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1686 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1687 current->comm);
1688 if (ACPI_FAILURE(status))
1689 return -EINVAL;
1690 return count;
1691 }
1692 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1693 set_bool_threeg);
1694
1695 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1696 char *buf)
1697 {
1698 pr_info("This interface sysfs will be removed in 2014 - used by: %s\n",
1699 current->comm);
1700 switch (interface->type) {
1701 case ACER_AMW0:
1702 return sprintf(buf, "AMW0\n");
1703 case ACER_AMW0_V2:
1704 return sprintf(buf, "AMW0 v2\n");
1705 case ACER_WMID:
1706 return sprintf(buf, "WMID\n");
1707 case ACER_WMID_v2:
1708 return sprintf(buf, "WMID v2\n");
1709 default:
1710 return sprintf(buf, "Error!\n");
1711 }
1712 }
1713
1714 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1715
1716 static void acer_wmi_notify(u32 value, void *context)
1717 {
1718 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1719 union acpi_object *obj;
1720 struct event_return_value return_value;
1721 acpi_status status;
1722 u16 device_state;
1723 const struct key_entry *key;
1724 u32 scancode;
1725
1726 status = wmi_get_event_data(value, &response);
1727 if (status != AE_OK) {
1728 pr_warn("bad event status 0x%x\n", status);
1729 return;
1730 }
1731
1732 obj = (union acpi_object *)response.pointer;
1733
1734 if (!obj)
1735 return;
1736 if (obj->type != ACPI_TYPE_BUFFER) {
1737 pr_warn("Unknown response received %d\n", obj->type);
1738 kfree(obj);
1739 return;
1740 }
1741 if (obj->buffer.length != 8) {
1742 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1743 kfree(obj);
1744 return;
1745 }
1746
1747 return_value = *((struct event_return_value *)obj->buffer.pointer);
1748 kfree(obj);
1749
1750 switch (return_value.function) {
1751 case WMID_HOTKEY_EVENT:
1752 device_state = return_value.device_state;
1753 pr_debug("device state: 0x%x\n", device_state);
1754
1755 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1756 return_value.key_num);
1757 if (!key) {
1758 pr_warn("Unknown key number - 0x%x\n",
1759 return_value.key_num);
1760 } else {
1761 scancode = return_value.key_num;
1762 switch (key->keycode) {
1763 case KEY_WLAN:
1764 case KEY_BLUETOOTH:
1765 if (has_cap(ACER_CAP_WIRELESS))
1766 rfkill_set_sw_state(wireless_rfkill,
1767 !(device_state & ACER_WMID3_GDS_WIRELESS));
1768 if (has_cap(ACER_CAP_THREEG))
1769 rfkill_set_sw_state(threeg_rfkill,
1770 !(device_state & ACER_WMID3_GDS_THREEG));
1771 if (has_cap(ACER_CAP_BLUETOOTH))
1772 rfkill_set_sw_state(bluetooth_rfkill,
1773 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1774 break;
1775 case KEY_TOUCHPAD_TOGGLE:
1776 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1777 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1778 }
1779 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1780 }
1781 break;
1782 case WMID_ACCEL_EVENT:
1783 acer_gsensor_event();
1784 break;
1785 default:
1786 pr_warn("Unknown function number - %d - %d\n",
1787 return_value.function, return_value.key_num);
1788 break;
1789 }
1790 }
1791
1792 static acpi_status __init
1793 wmid3_set_lm_mode(struct lm_input_params *params,
1794 struct lm_return_value *return_value)
1795 {
1796 acpi_status status;
1797 union acpi_object *obj;
1798
1799 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1800 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1801
1802 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1803 if (ACPI_FAILURE(status))
1804 return status;
1805
1806 obj = output.pointer;
1807
1808 if (!obj)
1809 return AE_ERROR;
1810 else if (obj->type != ACPI_TYPE_BUFFER) {
1811 kfree(obj);
1812 return AE_ERROR;
1813 }
1814 if (obj->buffer.length != 4) {
1815 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1816 kfree(obj);
1817 return AE_ERROR;
1818 }
1819
1820 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1821 kfree(obj);
1822
1823 return status;
1824 }
1825
1826 static int __init acer_wmi_enable_ec_raw(void)
1827 {
1828 struct lm_return_value return_value;
1829 acpi_status status;
1830 struct lm_input_params params = {
1831 .function_num = 0x1,
1832 .commun_devices = 0xFFFF,
1833 .devices = 0xFFFF,
1834 .lm_status = 0x00, /* Launch Manager Deactive */
1835 };
1836
1837 status = wmid3_set_lm_mode(&params, &return_value);
1838
1839 if (return_value.error_code || return_value.ec_return_value)
1840 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1841 return_value.error_code,
1842 return_value.ec_return_value);
1843 else
1844 pr_info("Enabled EC raw mode\n");
1845
1846 return status;
1847 }
1848
1849 static int __init acer_wmi_enable_lm(void)
1850 {
1851 struct lm_return_value return_value;
1852 acpi_status status;
1853 struct lm_input_params params = {
1854 .function_num = 0x1,
1855 .commun_devices = 0xFFFF,
1856 .devices = 0xFFFF,
1857 .lm_status = 0x01, /* Launch Manager Active */
1858 };
1859
1860 status = wmid3_set_lm_mode(&params, &return_value);
1861
1862 if (return_value.error_code || return_value.ec_return_value)
1863 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1864 return_value.error_code,
1865 return_value.ec_return_value);
1866
1867 return status;
1868 }
1869
1870 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1871 void *ctx, void **retval)
1872 {
1873 *(acpi_handle *)retval = ah;
1874 return AE_OK;
1875 }
1876
1877 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1878 acpi_handle *ah)
1879 {
1880 acpi_status status;
1881 acpi_handle handle;
1882
1883 BUG_ON(!name || !ah);
1884
1885 handle = NULL;
1886 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1887 (void *)name, &handle);
1888
1889 if (ACPI_SUCCESS(status)) {
1890 *ah = handle;
1891 return 0;
1892 } else {
1893 return -ENODEV;
1894 }
1895 }
1896
1897 static int __init acer_wmi_accel_setup(void)
1898 {
1899 int err;
1900
1901 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1902 if (err)
1903 return err;
1904
1905 interface->capability |= ACER_CAP_ACCEL;
1906
1907 acer_wmi_accel_dev = input_allocate_device();
1908 if (!acer_wmi_accel_dev)
1909 return -ENOMEM;
1910
1911 acer_wmi_accel_dev->open = acer_gsensor_open;
1912
1913 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1914 acer_wmi_accel_dev->phys = "wmi/input1";
1915 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1916 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1917 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1918 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1919 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1920
1921 err = input_register_device(acer_wmi_accel_dev);
1922 if (err)
1923 goto err_free_dev;
1924
1925 return 0;
1926
1927 err_free_dev:
1928 input_free_device(acer_wmi_accel_dev);
1929 return err;
1930 }
1931
1932 static void acer_wmi_accel_destroy(void)
1933 {
1934 input_unregister_device(acer_wmi_accel_dev);
1935 }
1936
1937 static int __init acer_wmi_input_setup(void)
1938 {
1939 acpi_status status;
1940 int err;
1941
1942 acer_wmi_input_dev = input_allocate_device();
1943 if (!acer_wmi_input_dev)
1944 return -ENOMEM;
1945
1946 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1947 acer_wmi_input_dev->phys = "wmi/input0";
1948 acer_wmi_input_dev->id.bustype = BUS_HOST;
1949
1950 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1951 if (err)
1952 goto err_free_dev;
1953
1954 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1955 acer_wmi_notify, NULL);
1956 if (ACPI_FAILURE(status)) {
1957 err = -EIO;
1958 goto err_free_keymap;
1959 }
1960
1961 err = input_register_device(acer_wmi_input_dev);
1962 if (err)
1963 goto err_uninstall_notifier;
1964
1965 return 0;
1966
1967 err_uninstall_notifier:
1968 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1969 err_free_keymap:
1970 sparse_keymap_free(acer_wmi_input_dev);
1971 err_free_dev:
1972 input_free_device(acer_wmi_input_dev);
1973 return err;
1974 }
1975
1976 static void acer_wmi_input_destroy(void)
1977 {
1978 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1979 sparse_keymap_free(acer_wmi_input_dev);
1980 input_unregister_device(acer_wmi_input_dev);
1981 }
1982
1983 /*
1984 * debugfs functions
1985 */
1986 static u32 get_wmid_devices(void)
1987 {
1988 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1989 union acpi_object *obj;
1990 acpi_status status;
1991 u32 devices = 0;
1992
1993 status = wmi_query_block(WMID_GUID2, 1, &out);
1994 if (ACPI_FAILURE(status))
1995 return 0;
1996
1997 obj = (union acpi_object *) out.pointer;
1998 if (obj) {
1999 if (obj->type == ACPI_TYPE_BUFFER &&
2000 (obj->buffer.length == sizeof(u32) ||
2001 obj->buffer.length == sizeof(u64))) {
2002 devices = *((u32 *) obj->buffer.pointer);
2003 } else if (obj->type == ACPI_TYPE_INTEGER) {
2004 devices = (u32) obj->integer.value;
2005 }
2006 }
2007
2008 kfree(out.pointer);
2009 return devices;
2010 }
2011
2012 /*
2013 * Platform device
2014 */
2015 static int acer_platform_probe(struct platform_device *device)
2016 {
2017 int err;
2018
2019 if (has_cap(ACER_CAP_MAILLED)) {
2020 err = acer_led_init(&device->dev);
2021 if (err)
2022 goto error_mailled;
2023 }
2024
2025 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2026 err = acer_backlight_init(&device->dev);
2027 if (err)
2028 goto error_brightness;
2029 }
2030
2031 err = acer_rfkill_init(&device->dev);
2032 if (err)
2033 goto error_rfkill;
2034
2035 return err;
2036
2037 error_rfkill:
2038 if (has_cap(ACER_CAP_BRIGHTNESS))
2039 acer_backlight_exit();
2040 error_brightness:
2041 if (has_cap(ACER_CAP_MAILLED))
2042 acer_led_exit();
2043 error_mailled:
2044 return err;
2045 }
2046
2047 static int acer_platform_remove(struct platform_device *device)
2048 {
2049 if (has_cap(ACER_CAP_MAILLED))
2050 acer_led_exit();
2051 if (has_cap(ACER_CAP_BRIGHTNESS))
2052 acer_backlight_exit();
2053
2054 acer_rfkill_exit();
2055 return 0;
2056 }
2057
2058 #ifdef CONFIG_PM_SLEEP
2059 static int acer_suspend(struct device *dev)
2060 {
2061 u32 value;
2062 struct acer_data *data = &interface->data;
2063
2064 if (!data)
2065 return -ENOMEM;
2066
2067 if (has_cap(ACER_CAP_MAILLED)) {
2068 get_u32(&value, ACER_CAP_MAILLED);
2069 set_u32(LED_OFF, ACER_CAP_MAILLED);
2070 data->mailled = value;
2071 }
2072
2073 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2074 get_u32(&value, ACER_CAP_BRIGHTNESS);
2075 data->brightness = value;
2076 }
2077
2078 return 0;
2079 }
2080
2081 static int acer_resume(struct device *dev)
2082 {
2083 struct acer_data *data = &interface->data;
2084
2085 if (!data)
2086 return -ENOMEM;
2087
2088 if (has_cap(ACER_CAP_MAILLED))
2089 set_u32(data->mailled, ACER_CAP_MAILLED);
2090
2091 if (has_cap(ACER_CAP_BRIGHTNESS))
2092 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2093
2094 if (has_cap(ACER_CAP_ACCEL))
2095 acer_gsensor_init();
2096
2097 return 0;
2098 }
2099 #else
2100 #define acer_suspend NULL
2101 #define acer_resume NULL
2102 #endif
2103
2104 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2105
2106 static void acer_platform_shutdown(struct platform_device *device)
2107 {
2108 struct acer_data *data = &interface->data;
2109
2110 if (!data)
2111 return;
2112
2113 if (has_cap(ACER_CAP_MAILLED))
2114 set_u32(LED_OFF, ACER_CAP_MAILLED);
2115 }
2116
2117 static struct platform_driver acer_platform_driver = {
2118 .driver = {
2119 .name = "acer-wmi",
2120 .owner = THIS_MODULE,
2121 .pm = &acer_pm,
2122 },
2123 .probe = acer_platform_probe,
2124 .remove = acer_platform_remove,
2125 .shutdown = acer_platform_shutdown,
2126 };
2127
2128 static struct platform_device *acer_platform_device;
2129
2130 static int remove_sysfs(struct platform_device *device)
2131 {
2132 if (has_cap(ACER_CAP_THREEG))
2133 device_remove_file(&device->dev, &dev_attr_threeg);
2134
2135 device_remove_file(&device->dev, &dev_attr_interface);
2136
2137 return 0;
2138 }
2139
2140 static int __init create_sysfs(void)
2141 {
2142 int retval = -ENOMEM;
2143
2144 if (has_cap(ACER_CAP_THREEG)) {
2145 retval = device_create_file(&acer_platform_device->dev,
2146 &dev_attr_threeg);
2147 if (retval)
2148 goto error_sysfs;
2149 }
2150
2151 retval = device_create_file(&acer_platform_device->dev,
2152 &dev_attr_interface);
2153 if (retval)
2154 goto error_sysfs;
2155
2156 return 0;
2157
2158 error_sysfs:
2159 remove_sysfs(acer_platform_device);
2160 return retval;
2161 }
2162
2163 static void remove_debugfs(void)
2164 {
2165 debugfs_remove(interface->debug.devices);
2166 debugfs_remove(interface->debug.root);
2167 }
2168
2169 static int __init create_debugfs(void)
2170 {
2171 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2172 if (!interface->debug.root) {
2173 pr_err("Failed to create debugfs directory");
2174 return -ENOMEM;
2175 }
2176
2177 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2178 interface->debug.root,
2179 &interface->debug.wmid_devices);
2180 if (!interface->debug.devices)
2181 goto error_debugfs;
2182
2183 return 0;
2184
2185 error_debugfs:
2186 remove_debugfs();
2187 return -ENOMEM;
2188 }
2189
2190 static int __init acer_wmi_init(void)
2191 {
2192 int err;
2193
2194 pr_info("Acer Laptop ACPI-WMI Extras\n");
2195
2196 if (dmi_check_system(acer_blacklist)) {
2197 pr_info("Blacklisted hardware detected - not loading\n");
2198 return -ENODEV;
2199 }
2200
2201 find_quirks();
2202
2203 /*
2204 * Detect which ACPI-WMI interface we're using.
2205 */
2206 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2207 interface = &AMW0_V2_interface;
2208
2209 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2210 interface = &wmid_interface;
2211
2212 if (wmi_has_guid(WMID_GUID3))
2213 interface = &wmid_v2_interface;
2214
2215 if (interface)
2216 dmi_walk(type_aa_dmi_decode, NULL);
2217
2218 if (wmi_has_guid(WMID_GUID2) && interface) {
2219 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2220 pr_err("Unable to detect available WMID devices\n");
2221 return -ENODEV;
2222 }
2223 /* WMID always provides brightness methods */
2224 interface->capability |= ACER_CAP_BRIGHTNESS;
2225 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2226 pr_err("No WMID device detection method found\n");
2227 return -ENODEV;
2228 }
2229
2230 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2231 interface = &AMW0_interface;
2232
2233 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2234 pr_err("Unable to detect available AMW0 devices\n");
2235 return -ENODEV;
2236 }
2237 }
2238
2239 if (wmi_has_guid(AMW0_GUID1))
2240 AMW0_find_mailled();
2241
2242 if (!interface) {
2243 pr_err("No or unsupported WMI interface, unable to load\n");
2244 return -ENODEV;
2245 }
2246
2247 set_quirks();
2248
2249 if (dmi_check_system(video_vendor_dmi_table))
2250 acpi_video_dmi_promote_vendor();
2251 if (acpi_video_backlight_support()) {
2252 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2253 pr_info("Brightness must be controlled by acpi video driver\n");
2254 } else {
2255 pr_info("Disabling ACPI video driver\n");
2256 acpi_video_unregister_backlight();
2257 }
2258
2259 if (wmi_has_guid(WMID_GUID3)) {
2260 if (ec_raw_mode) {
2261 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2262 pr_err("Cannot enable EC raw mode\n");
2263 return -ENODEV;
2264 }
2265 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2266 pr_err("Cannot enable Launch Manager mode\n");
2267 return -ENODEV;
2268 }
2269 } else if (ec_raw_mode) {
2270 pr_info("No WMID EC raw mode enable method\n");
2271 }
2272
2273 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2274 err = acer_wmi_input_setup();
2275 if (err)
2276 return err;
2277 }
2278
2279 acer_wmi_accel_setup();
2280
2281 err = platform_driver_register(&acer_platform_driver);
2282 if (err) {
2283 pr_err("Unable to register platform driver\n");
2284 goto error_platform_register;
2285 }
2286
2287 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2288 if (!acer_platform_device) {
2289 err = -ENOMEM;
2290 goto error_device_alloc;
2291 }
2292
2293 err = platform_device_add(acer_platform_device);
2294 if (err)
2295 goto error_device_add;
2296
2297 err = create_sysfs();
2298 if (err)
2299 goto error_create_sys;
2300
2301 if (wmi_has_guid(WMID_GUID2)) {
2302 interface->debug.wmid_devices = get_wmid_devices();
2303 err = create_debugfs();
2304 if (err)
2305 goto error_create_debugfs;
2306 }
2307
2308 /* Override any initial settings with values from the commandline */
2309 acer_commandline_init();
2310
2311 return 0;
2312
2313 error_create_debugfs:
2314 remove_sysfs(acer_platform_device);
2315 error_create_sys:
2316 platform_device_del(acer_platform_device);
2317 error_device_add:
2318 platform_device_put(acer_platform_device);
2319 error_device_alloc:
2320 platform_driver_unregister(&acer_platform_driver);
2321 error_platform_register:
2322 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2323 acer_wmi_input_destroy();
2324 if (has_cap(ACER_CAP_ACCEL))
2325 acer_wmi_accel_destroy();
2326
2327 return err;
2328 }
2329
2330 static void __exit acer_wmi_exit(void)
2331 {
2332 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2333 acer_wmi_input_destroy();
2334
2335 if (has_cap(ACER_CAP_ACCEL))
2336 acer_wmi_accel_destroy();
2337
2338 remove_sysfs(acer_platform_device);
2339 remove_debugfs();
2340 platform_device_unregister(acer_platform_device);
2341 platform_driver_unregister(&acer_platform_driver);
2342
2343 pr_info("Acer Laptop WMI Extras unloaded\n");
2344 return;
2345 }
2346
2347 module_init(acer_wmi_init);
2348 module_exit(acer_wmi_exit);
Linux kernel - Deliverables
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