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[GitHub/mt8127/android_kernel_alcatel_ttab.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
45 #include <acpi/acpi_drivers.h>
46 #include <acpi/video.h>
47
48 MODULE_AUTHOR("Carlos Corbacho");
49 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
50 MODULE_LICENSE("GPL");
51
52 /*
53 * Magic Number
54 * Meaning is unknown - this number is required for writing to ACPI for AMW0
55 * (it's also used in acerhk when directly accessing the BIOS)
56 */
57 #define ACER_AMW0_WRITE 0x9610
58
59 /*
60 * Bit masks for the AMW0 interface
61 */
62 #define ACER_AMW0_WIRELESS_MASK 0x35
63 #define ACER_AMW0_BLUETOOTH_MASK 0x34
64 #define ACER_AMW0_MAILLED_MASK 0x31
65
66 /*
67 * Method IDs for WMID interface
68 */
69 #define ACER_WMID_GET_WIRELESS_METHODID 1
70 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
71 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
72 #define ACER_WMID_SET_WIRELESS_METHODID 4
73 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
74 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
75 #define ACER_WMID_GET_THREEG_METHODID 10
76 #define ACER_WMID_SET_THREEG_METHODID 11
77
78 /*
79 * Acer ACPI method GUIDs
80 */
81 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
82 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
83 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
84 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
85 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
86
87 /*
88 * Acer ACPI event GUIDs
89 */
90 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
91
92 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
93 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
94 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
95
96 enum acer_wmi_event_ids {
97 WMID_HOTKEY_EVENT = 0x1,
98 WMID_ACCEL_EVENT = 0x5,
99 };
100
101 static const struct key_entry acer_wmi_keymap[] = {
102 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
104 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
105 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
106 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
107 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
108 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
109 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
110 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
111 {KE_IGNORE, 0x41, {KEY_MUTE} },
112 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
113 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
114 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
115 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
116 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
117 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
118 {KE_IGNORE, 0x45, {KEY_STOP} },
119 {KE_IGNORE, 0x50, {KEY_STOP} },
120 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
121 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
122 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
123 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
124 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
125 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
126 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
127 {KE_IGNORE, 0x81, {KEY_SLEEP} },
128 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
129 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
130 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
131 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
132 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
133 {KE_END, 0}
134 };
135
136 static struct input_dev *acer_wmi_input_dev;
137 static struct input_dev *acer_wmi_accel_dev;
138
139 struct event_return_value {
140 u8 function;
141 u8 key_num;
142 u16 device_state;
143 u32 reserved;
144 } __attribute__((packed));
145
146 /*
147 * GUID3 Get Device Status device flags
148 */
149 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
150 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
151 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
152 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
153 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
154
155 struct lm_input_params {
156 u8 function_num; /* Function Number */
157 u16 commun_devices; /* Communication type devices default status */
158 u16 devices; /* Other type devices default status */
159 u8 lm_status; /* Launch Manager Status */
160 u16 reserved;
161 } __attribute__((packed));
162
163 struct lm_return_value {
164 u8 error_code; /* Error Code */
165 u8 ec_return_value; /* EC Return Value */
166 u16 reserved;
167 } __attribute__((packed));
168
169 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
170 u8 function_num; /* Function Number */
171 u8 hotkey_number; /* Hotkey Number */
172 u16 devices; /* Set Device */
173 u8 volume_value; /* Volume Value */
174 } __attribute__((packed));
175
176 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
177 u8 function_num; /* Function Number */
178 u8 hotkey_number; /* Hotkey Number */
179 u16 devices; /* Get Device */
180 } __attribute__((packed));
181
182 struct wmid3_gds_return_value { /* Get Device Status return value*/
183 u8 error_code; /* Error Code */
184 u8 ec_return_value; /* EC Return Value */
185 u16 devices; /* Current Device Status */
186 u32 reserved;
187 } __attribute__((packed));
188
189 struct hotkey_function_type_aa {
190 u8 type;
191 u8 length;
192 u16 handle;
193 u16 commun_func_bitmap;
194 u16 application_func_bitmap;
195 u16 media_func_bitmap;
196 u16 display_func_bitmap;
197 u16 others_func_bitmap;
198 u8 commun_fn_key_number;
199 } __attribute__((packed));
200
201 /*
202 * Interface capability flags
203 */
204 #define ACER_CAP_MAILLED (1<<0)
205 #define ACER_CAP_WIRELESS (1<<1)
206 #define ACER_CAP_BLUETOOTH (1<<2)
207 #define ACER_CAP_BRIGHTNESS (1<<3)
208 #define ACER_CAP_THREEG (1<<4)
209 #define ACER_CAP_ACCEL (1<<5)
210 #define ACER_CAP_ANY (0xFFFFFFFF)
211
212 /*
213 * Interface type flags
214 */
215 enum interface_flags {
216 ACER_AMW0,
217 ACER_AMW0_V2,
218 ACER_WMID,
219 ACER_WMID_v2,
220 };
221
222 #define ACER_DEFAULT_WIRELESS 0
223 #define ACER_DEFAULT_BLUETOOTH 0
224 #define ACER_DEFAULT_MAILLED 0
225 #define ACER_DEFAULT_THREEG 0
226
227 static int max_brightness = 0xF;
228
229 static int mailled = -1;
230 static int brightness = -1;
231 static int threeg = -1;
232 static int force_series;
233 static bool ec_raw_mode;
234 static bool has_type_aa;
235 static u16 commun_func_bitmap;
236 static u8 commun_fn_key_number;
237
238 module_param(mailled, int, 0444);
239 module_param(brightness, int, 0444);
240 module_param(threeg, int, 0444);
241 module_param(force_series, int, 0444);
242 module_param(ec_raw_mode, bool, 0444);
243 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
244 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
245 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
246 MODULE_PARM_DESC(force_series, "Force a different laptop series");
247 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
248
249 struct acer_data {
250 int mailled;
251 int threeg;
252 int brightness;
253 };
254
255 struct acer_debug {
256 struct dentry *root;
257 struct dentry *devices;
258 u32 wmid_devices;
259 };
260
261 static struct rfkill *wireless_rfkill;
262 static struct rfkill *bluetooth_rfkill;
263 static struct rfkill *threeg_rfkill;
264 static bool rfkill_inited;
265
266 /* Each low-level interface must define at least some of the following */
267 struct wmi_interface {
268 /* The WMI device type */
269 u32 type;
270
271 /* The capabilities this interface provides */
272 u32 capability;
273
274 /* Private data for the current interface */
275 struct acer_data data;
276
277 /* debugfs entries associated with this interface */
278 struct acer_debug debug;
279 };
280
281 /* The static interface pointer, points to the currently detected interface */
282 static struct wmi_interface *interface;
283
284 /*
285 * Embedded Controller quirks
286 * Some laptops require us to directly access the EC to either enable or query
287 * features that are not available through WMI.
288 */
289
290 struct quirk_entry {
291 u8 wireless;
292 u8 mailled;
293 s8 brightness;
294 u8 bluetooth;
295 };
296
297 static struct quirk_entry *quirks;
298
299 static void set_quirks(void)
300 {
301 if (!interface)
302 return;
303
304 if (quirks->mailled)
305 interface->capability |= ACER_CAP_MAILLED;
306
307 if (quirks->brightness)
308 interface->capability |= ACER_CAP_BRIGHTNESS;
309 }
310
311 static int dmi_matched(const struct dmi_system_id *dmi)
312 {
313 quirks = dmi->driver_data;
314 return 1;
315 }
316
317 static struct quirk_entry quirk_unknown = {
318 };
319
320 static struct quirk_entry quirk_acer_aspire_1520 = {
321 .brightness = -1,
322 };
323
324 static struct quirk_entry quirk_acer_travelmate_2490 = {
325 .mailled = 1,
326 };
327
328 /* This AMW0 laptop has no bluetooth */
329 static struct quirk_entry quirk_medion_md_98300 = {
330 .wireless = 1,
331 };
332
333 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
334 .wireless = 2,
335 };
336
337 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
338 .wireless = 3,
339 };
340
341 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
342 static struct dmi_system_id acer_blacklist[] = {
343 {
344 .ident = "Acer Aspire One (SSD)",
345 .matches = {
346 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
347 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
348 },
349 },
350 {
351 .ident = "Acer Aspire One (HDD)",
352 .matches = {
353 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
354 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
355 },
356 },
357 {}
358 };
359
360 static struct dmi_system_id acer_quirks[] = {
361 {
362 .callback = dmi_matched,
363 .ident = "Acer Aspire 1360",
364 .matches = {
365 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
366 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
367 },
368 .driver_data = &quirk_acer_aspire_1520,
369 },
370 {
371 .callback = dmi_matched,
372 .ident = "Acer Aspire 1520",
373 .matches = {
374 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
375 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
376 },
377 .driver_data = &quirk_acer_aspire_1520,
378 },
379 {
380 .callback = dmi_matched,
381 .ident = "Acer Aspire 3100",
382 .matches = {
383 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
384 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
385 },
386 .driver_data = &quirk_acer_travelmate_2490,
387 },
388 {
389 .callback = dmi_matched,
390 .ident = "Acer Aspire 3610",
391 .matches = {
392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
394 },
395 .driver_data = &quirk_acer_travelmate_2490,
396 },
397 {
398 .callback = dmi_matched,
399 .ident = "Acer Aspire 5100",
400 .matches = {
401 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
402 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
403 },
404 .driver_data = &quirk_acer_travelmate_2490,
405 },
406 {
407 .callback = dmi_matched,
408 .ident = "Acer Aspire 5610",
409 .matches = {
410 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
411 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
412 },
413 .driver_data = &quirk_acer_travelmate_2490,
414 },
415 {
416 .callback = dmi_matched,
417 .ident = "Acer Aspire 5630",
418 .matches = {
419 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
420 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
421 },
422 .driver_data = &quirk_acer_travelmate_2490,
423 },
424 {
425 .callback = dmi_matched,
426 .ident = "Acer Aspire 5650",
427 .matches = {
428 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
429 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
430 },
431 .driver_data = &quirk_acer_travelmate_2490,
432 },
433 {
434 .callback = dmi_matched,
435 .ident = "Acer Aspire 5680",
436 .matches = {
437 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
438 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
439 },
440 .driver_data = &quirk_acer_travelmate_2490,
441 },
442 {
443 .callback = dmi_matched,
444 .ident = "Acer Aspire 9110",
445 .matches = {
446 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
447 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
448 },
449 .driver_data = &quirk_acer_travelmate_2490,
450 },
451 {
452 .callback = dmi_matched,
453 .ident = "Acer TravelMate 2490",
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
457 },
458 .driver_data = &quirk_acer_travelmate_2490,
459 },
460 {
461 .callback = dmi_matched,
462 .ident = "Acer TravelMate 4200",
463 .matches = {
464 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
465 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
466 },
467 .driver_data = &quirk_acer_travelmate_2490,
468 },
469 {
470 .callback = dmi_matched,
471 .ident = "Fujitsu Siemens Amilo Li 1718",
472 .matches = {
473 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
474 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
475 },
476 .driver_data = &quirk_fujitsu_amilo_li_1718,
477 },
478 {
479 .callback = dmi_matched,
480 .ident = "Medion MD 98300",
481 .matches = {
482 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
483 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
484 },
485 .driver_data = &quirk_medion_md_98300,
486 },
487 {
488 .callback = dmi_matched,
489 .ident = "Lenovo Ideapad S205",
490 .matches = {
491 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
492 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
493 },
494 .driver_data = &quirk_lenovo_ideapad_s205,
495 },
496 {
497 .callback = dmi_matched,
498 .ident = "Lenovo Ideapad S205 (Brazos)",
499 .matches = {
500 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
501 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
502 },
503 .driver_data = &quirk_lenovo_ideapad_s205,
504 },
505 {
506 .callback = dmi_matched,
507 .ident = "Lenovo 3000 N200",
508 .matches = {
509 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
510 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
511 },
512 .driver_data = &quirk_fujitsu_amilo_li_1718,
513 },
514 {
515 .callback = dmi_matched,
516 .ident = "Lenovo Ideapad S205-10382JG",
517 .matches = {
518 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
519 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
520 },
521 .driver_data = &quirk_lenovo_ideapad_s205,
522 },
523 {
524 .callback = dmi_matched,
525 .ident = "Lenovo Ideapad S205-1038DPG",
526 .matches = {
527 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
528 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
529 },
530 .driver_data = &quirk_lenovo_ideapad_s205,
531 },
532 {}
533 };
534
535 static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
536 {
537 interface->capability &= ~ACER_CAP_BRIGHTNESS;
538 pr_info("Brightness must be controlled by generic video driver\n");
539 return 0;
540 }
541
542 static const struct dmi_system_id video_vendor_dmi_table[] = {
543 {
544 .callback = video_set_backlight_video_vendor,
545 .ident = "Acer TravelMate 4750",
546 .matches = {
547 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
548 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
549 },
550 },
551 {
552 .callback = video_set_backlight_video_vendor,
553 .ident = "Acer Extensa 5235",
554 .matches = {
555 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
556 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
557 },
558 },
559 {
560 .callback = video_set_backlight_video_vendor,
561 .ident = "Acer TravelMate 5760",
562 .matches = {
563 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
564 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
565 },
566 },
567 {
568 .callback = video_set_backlight_video_vendor,
569 .ident = "Acer Aspire 5750",
570 .matches = {
571 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
572 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
573 },
574 },
575 {
576 /*
577 * Note no video_set_backlight_video_vendor, we must use the
578 * acer interface, as there is no native backlight interface.
579 */
580 .ident = "Acer KAV80",
581 .matches = {
582 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
583 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
584 },
585 },
586 {}
587 };
588
589 /* Find which quirks are needed for a particular vendor/ model pair */
590 static void find_quirks(void)
591 {
592 if (!force_series) {
593 dmi_check_system(acer_quirks);
594 } else if (force_series == 2490) {
595 quirks = &quirk_acer_travelmate_2490;
596 }
597
598 if (quirks == NULL)
599 quirks = &quirk_unknown;
600
601 set_quirks();
602 }
603
604 /*
605 * General interface convenience methods
606 */
607
608 static bool has_cap(u32 cap)
609 {
610 if ((interface->capability & cap) != 0)
611 return 1;
612
613 return 0;
614 }
615
616 /*
617 * AMW0 (V1) interface
618 */
619 struct wmab_args {
620 u32 eax;
621 u32 ebx;
622 u32 ecx;
623 u32 edx;
624 };
625
626 struct wmab_ret {
627 u32 eax;
628 u32 ebx;
629 u32 ecx;
630 u32 edx;
631 u32 eex;
632 };
633
634 static acpi_status wmab_execute(struct wmab_args *regbuf,
635 struct acpi_buffer *result)
636 {
637 struct acpi_buffer input;
638 acpi_status status;
639 input.length = sizeof(struct wmab_args);
640 input.pointer = (u8 *)regbuf;
641
642 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
643
644 return status;
645 }
646
647 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
648 {
649 int err;
650 u8 result;
651
652 switch (cap) {
653 case ACER_CAP_MAILLED:
654 switch (quirks->mailled) {
655 default:
656 err = ec_read(0xA, &result);
657 if (err)
658 return AE_ERROR;
659 *value = (result >> 7) & 0x1;
660 return AE_OK;
661 }
662 break;
663 case ACER_CAP_WIRELESS:
664 switch (quirks->wireless) {
665 case 1:
666 err = ec_read(0x7B, &result);
667 if (err)
668 return AE_ERROR;
669 *value = result & 0x1;
670 return AE_OK;
671 case 2:
672 err = ec_read(0x71, &result);
673 if (err)
674 return AE_ERROR;
675 *value = result & 0x1;
676 return AE_OK;
677 case 3:
678 err = ec_read(0x78, &result);
679 if (err)
680 return AE_ERROR;
681 *value = result & 0x1;
682 return AE_OK;
683 default:
684 err = ec_read(0xA, &result);
685 if (err)
686 return AE_ERROR;
687 *value = (result >> 2) & 0x1;
688 return AE_OK;
689 }
690 break;
691 case ACER_CAP_BLUETOOTH:
692 switch (quirks->bluetooth) {
693 default:
694 err = ec_read(0xA, &result);
695 if (err)
696 return AE_ERROR;
697 *value = (result >> 4) & 0x1;
698 return AE_OK;
699 }
700 break;
701 case ACER_CAP_BRIGHTNESS:
702 switch (quirks->brightness) {
703 default:
704 err = ec_read(0x83, &result);
705 if (err)
706 return AE_ERROR;
707 *value = result;
708 return AE_OK;
709 }
710 break;
711 default:
712 return AE_ERROR;
713 }
714 return AE_OK;
715 }
716
717 static acpi_status AMW0_set_u32(u32 value, u32 cap)
718 {
719 struct wmab_args args;
720
721 args.eax = ACER_AMW0_WRITE;
722 args.ebx = value ? (1<<8) : 0;
723 args.ecx = args.edx = 0;
724
725 switch (cap) {
726 case ACER_CAP_MAILLED:
727 if (value > 1)
728 return AE_BAD_PARAMETER;
729 args.ebx |= ACER_AMW0_MAILLED_MASK;
730 break;
731 case ACER_CAP_WIRELESS:
732 if (value > 1)
733 return AE_BAD_PARAMETER;
734 args.ebx |= ACER_AMW0_WIRELESS_MASK;
735 break;
736 case ACER_CAP_BLUETOOTH:
737 if (value > 1)
738 return AE_BAD_PARAMETER;
739 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
740 break;
741 case ACER_CAP_BRIGHTNESS:
742 if (value > max_brightness)
743 return AE_BAD_PARAMETER;
744 switch (quirks->brightness) {
745 default:
746 return ec_write(0x83, value);
747 break;
748 }
749 default:
750 return AE_ERROR;
751 }
752
753 /* Actually do the set */
754 return wmab_execute(&args, NULL);
755 }
756
757 static acpi_status AMW0_find_mailled(void)
758 {
759 struct wmab_args args;
760 struct wmab_ret ret;
761 acpi_status status = AE_OK;
762 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
763 union acpi_object *obj;
764
765 args.eax = 0x86;
766 args.ebx = args.ecx = args.edx = 0;
767
768 status = wmab_execute(&args, &out);
769 if (ACPI_FAILURE(status))
770 return status;
771
772 obj = (union acpi_object *) out.pointer;
773 if (obj && obj->type == ACPI_TYPE_BUFFER &&
774 obj->buffer.length == sizeof(struct wmab_ret)) {
775 ret = *((struct wmab_ret *) obj->buffer.pointer);
776 } else {
777 kfree(out.pointer);
778 return AE_ERROR;
779 }
780
781 if (ret.eex & 0x1)
782 interface->capability |= ACER_CAP_MAILLED;
783
784 kfree(out.pointer);
785
786 return AE_OK;
787 }
788
789 static int AMW0_set_cap_acpi_check_device_found;
790
791 static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
792 u32 level, void *context, void **retval)
793 {
794 AMW0_set_cap_acpi_check_device_found = 1;
795 return AE_OK;
796 }
797
798 static const struct acpi_device_id norfkill_ids[] = {
799 { "VPC2004", 0},
800 { "IBM0068", 0},
801 { "LEN0068", 0},
802 { "SNY5001", 0}, /* sony-laptop in charge */
803 { "", 0},
804 };
805
806 static int AMW0_set_cap_acpi_check_device(void)
807 {
808 const struct acpi_device_id *id;
809
810 for (id = norfkill_ids; id->id[0]; id++)
811 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
812 NULL, NULL);
813 return AMW0_set_cap_acpi_check_device_found;
814 }
815
816 static acpi_status AMW0_set_capabilities(void)
817 {
818 struct wmab_args args;
819 struct wmab_ret ret;
820 acpi_status status;
821 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
822 union acpi_object *obj;
823
824 /*
825 * On laptops with this strange GUID (non Acer), normal probing doesn't
826 * work.
827 */
828 if (wmi_has_guid(AMW0_GUID2)) {
829 if ((quirks != &quirk_unknown) ||
830 !AMW0_set_cap_acpi_check_device())
831 interface->capability |= ACER_CAP_WIRELESS;
832 return AE_OK;
833 }
834
835 args.eax = ACER_AMW0_WRITE;
836 args.ecx = args.edx = 0;
837
838 args.ebx = 0xa2 << 8;
839 args.ebx |= ACER_AMW0_WIRELESS_MASK;
840
841 status = wmab_execute(&args, &out);
842 if (ACPI_FAILURE(status))
843 return status;
844
845 obj = out.pointer;
846 if (obj && obj->type == ACPI_TYPE_BUFFER &&
847 obj->buffer.length == sizeof(struct wmab_ret)) {
848 ret = *((struct wmab_ret *) obj->buffer.pointer);
849 } else {
850 status = AE_ERROR;
851 goto out;
852 }
853
854 if (ret.eax & 0x1)
855 interface->capability |= ACER_CAP_WIRELESS;
856
857 args.ebx = 2 << 8;
858 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
859
860 /*
861 * It's ok to use existing buffer for next wmab_execute call.
862 * But we need to kfree(out.pointer) if next wmab_execute fail.
863 */
864 status = wmab_execute(&args, &out);
865 if (ACPI_FAILURE(status))
866 goto out;
867
868 obj = (union acpi_object *) out.pointer;
869 if (obj && obj->type == ACPI_TYPE_BUFFER
870 && obj->buffer.length == sizeof(struct wmab_ret)) {
871 ret = *((struct wmab_ret *) obj->buffer.pointer);
872 } else {
873 status = AE_ERROR;
874 goto out;
875 }
876
877 if (ret.eax & 0x1)
878 interface->capability |= ACER_CAP_BLUETOOTH;
879
880 /*
881 * This appears to be safe to enable, since all Wistron based laptops
882 * appear to use the same EC register for brightness, even if they
883 * differ for wireless, etc
884 */
885 if (quirks->brightness >= 0)
886 interface->capability |= ACER_CAP_BRIGHTNESS;
887
888 status = AE_OK;
889 out:
890 kfree(out.pointer);
891 return status;
892 }
893
894 static struct wmi_interface AMW0_interface = {
895 .type = ACER_AMW0,
896 };
897
898 static struct wmi_interface AMW0_V2_interface = {
899 .type = ACER_AMW0_V2,
900 };
901
902 /*
903 * New interface (The WMID interface)
904 */
905 static acpi_status
906 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
907 {
908 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
909 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
910 union acpi_object *obj;
911 u32 tmp = 0;
912 acpi_status status;
913
914 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
915
916 if (ACPI_FAILURE(status))
917 return status;
918
919 obj = (union acpi_object *) result.pointer;
920 if (obj) {
921 if (obj->type == ACPI_TYPE_BUFFER &&
922 (obj->buffer.length == sizeof(u32) ||
923 obj->buffer.length == sizeof(u64))) {
924 tmp = *((u32 *) obj->buffer.pointer);
925 } else if (obj->type == ACPI_TYPE_INTEGER) {
926 tmp = (u32) obj->integer.value;
927 }
928 }
929
930 if (out)
931 *out = tmp;
932
933 kfree(result.pointer);
934
935 return status;
936 }
937
938 static acpi_status WMID_get_u32(u32 *value, u32 cap)
939 {
940 acpi_status status;
941 u8 tmp;
942 u32 result, method_id = 0;
943
944 switch (cap) {
945 case ACER_CAP_WIRELESS:
946 method_id = ACER_WMID_GET_WIRELESS_METHODID;
947 break;
948 case ACER_CAP_BLUETOOTH:
949 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
950 break;
951 case ACER_CAP_BRIGHTNESS:
952 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
953 break;
954 case ACER_CAP_THREEG:
955 method_id = ACER_WMID_GET_THREEG_METHODID;
956 break;
957 case ACER_CAP_MAILLED:
958 if (quirks->mailled == 1) {
959 ec_read(0x9f, &tmp);
960 *value = tmp & 0x1;
961 return 0;
962 }
963 default:
964 return AE_ERROR;
965 }
966 status = WMI_execute_u32(method_id, 0, &result);
967
968 if (ACPI_SUCCESS(status))
969 *value = (u8)result;
970
971 return status;
972 }
973
974 static acpi_status WMID_set_u32(u32 value, u32 cap)
975 {
976 u32 method_id = 0;
977 char param;
978
979 switch (cap) {
980 case ACER_CAP_BRIGHTNESS:
981 if (value > max_brightness)
982 return AE_BAD_PARAMETER;
983 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
984 break;
985 case ACER_CAP_WIRELESS:
986 if (value > 1)
987 return AE_BAD_PARAMETER;
988 method_id = ACER_WMID_SET_WIRELESS_METHODID;
989 break;
990 case ACER_CAP_BLUETOOTH:
991 if (value > 1)
992 return AE_BAD_PARAMETER;
993 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
994 break;
995 case ACER_CAP_THREEG:
996 if (value > 1)
997 return AE_BAD_PARAMETER;
998 method_id = ACER_WMID_SET_THREEG_METHODID;
999 break;
1000 case ACER_CAP_MAILLED:
1001 if (value > 1)
1002 return AE_BAD_PARAMETER;
1003 if (quirks->mailled == 1) {
1004 param = value ? 0x92 : 0x93;
1005 i8042_lock_chip();
1006 i8042_command(&param, 0x1059);
1007 i8042_unlock_chip();
1008 return 0;
1009 }
1010 break;
1011 default:
1012 return AE_ERROR;
1013 }
1014 return WMI_execute_u32(method_id, (u32)value, NULL);
1015 }
1016
1017 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1018 {
1019 struct wmid3_gds_return_value return_value;
1020 acpi_status status;
1021 union acpi_object *obj;
1022 struct wmid3_gds_get_input_param params = {
1023 .function_num = 0x1,
1024 .hotkey_number = commun_fn_key_number,
1025 .devices = device,
1026 };
1027 struct acpi_buffer input = {
1028 sizeof(struct wmid3_gds_get_input_param),
1029 &params
1030 };
1031 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1032
1033 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1034 if (ACPI_FAILURE(status))
1035 return status;
1036
1037 obj = output.pointer;
1038
1039 if (!obj)
1040 return AE_ERROR;
1041 else if (obj->type != ACPI_TYPE_BUFFER) {
1042 kfree(obj);
1043 return AE_ERROR;
1044 }
1045 if (obj->buffer.length != 8) {
1046 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1047 kfree(obj);
1048 return AE_ERROR;
1049 }
1050
1051 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1052 kfree(obj);
1053
1054 if (return_value.error_code || return_value.ec_return_value)
1055 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1056 device,
1057 return_value.error_code,
1058 return_value.ec_return_value);
1059 else
1060 *value = !!(return_value.devices & device);
1061
1062 return status;
1063 }
1064
1065 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1066 {
1067 u16 device;
1068
1069 switch (cap) {
1070 case ACER_CAP_WIRELESS:
1071 device = ACER_WMID3_GDS_WIRELESS;
1072 break;
1073 case ACER_CAP_BLUETOOTH:
1074 device = ACER_WMID3_GDS_BLUETOOTH;
1075 break;
1076 case ACER_CAP_THREEG:
1077 device = ACER_WMID3_GDS_THREEG;
1078 break;
1079 default:
1080 return AE_ERROR;
1081 }
1082 return wmid3_get_device_status(value, device);
1083 }
1084
1085 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1086 {
1087 struct wmid3_gds_return_value return_value;
1088 acpi_status status;
1089 union acpi_object *obj;
1090 u16 devices;
1091 struct wmid3_gds_get_input_param get_params = {
1092 .function_num = 0x1,
1093 .hotkey_number = commun_fn_key_number,
1094 .devices = commun_func_bitmap,
1095 };
1096 struct acpi_buffer get_input = {
1097 sizeof(struct wmid3_gds_get_input_param),
1098 &get_params
1099 };
1100 struct wmid3_gds_set_input_param set_params = {
1101 .function_num = 0x2,
1102 .hotkey_number = commun_fn_key_number,
1103 .devices = commun_func_bitmap,
1104 };
1105 struct acpi_buffer set_input = {
1106 sizeof(struct wmid3_gds_set_input_param),
1107 &set_params
1108 };
1109 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1110 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1111
1112 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1113 if (ACPI_FAILURE(status))
1114 return status;
1115
1116 obj = output.pointer;
1117
1118 if (!obj)
1119 return AE_ERROR;
1120 else if (obj->type != ACPI_TYPE_BUFFER) {
1121 kfree(obj);
1122 return AE_ERROR;
1123 }
1124 if (obj->buffer.length != 8) {
1125 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1126 kfree(obj);
1127 return AE_ERROR;
1128 }
1129
1130 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1131 kfree(obj);
1132
1133 if (return_value.error_code || return_value.ec_return_value) {
1134 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1135 return_value.error_code,
1136 return_value.ec_return_value);
1137 return status;
1138 }
1139
1140 devices = return_value.devices;
1141 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1142
1143 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1144 if (ACPI_FAILURE(status))
1145 return status;
1146
1147 obj = output2.pointer;
1148
1149 if (!obj)
1150 return AE_ERROR;
1151 else if (obj->type != ACPI_TYPE_BUFFER) {
1152 kfree(obj);
1153 return AE_ERROR;
1154 }
1155 if (obj->buffer.length != 4) {
1156 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1157 kfree(obj);
1158 return AE_ERROR;
1159 }
1160
1161 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1162 kfree(obj);
1163
1164 if (return_value.error_code || return_value.ec_return_value)
1165 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1166 return_value.error_code,
1167 return_value.ec_return_value);
1168
1169 return status;
1170 }
1171
1172 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1173 {
1174 u16 device;
1175
1176 switch (cap) {
1177 case ACER_CAP_WIRELESS:
1178 device = ACER_WMID3_GDS_WIRELESS;
1179 break;
1180 case ACER_CAP_BLUETOOTH:
1181 device = ACER_WMID3_GDS_BLUETOOTH;
1182 break;
1183 case ACER_CAP_THREEG:
1184 device = ACER_WMID3_GDS_THREEG;
1185 break;
1186 default:
1187 return AE_ERROR;
1188 }
1189 return wmid3_set_device_status(value, device);
1190 }
1191
1192 static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
1193 {
1194 struct hotkey_function_type_aa *type_aa;
1195
1196 /* We are looking for OEM-specific Type AAh */
1197 if (header->type != 0xAA)
1198 return;
1199
1200 has_type_aa = true;
1201 type_aa = (struct hotkey_function_type_aa *) header;
1202
1203 pr_info("Function bitmap for Communication Button: 0x%x\n",
1204 type_aa->commun_func_bitmap);
1205 commun_func_bitmap = type_aa->commun_func_bitmap;
1206
1207 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1208 interface->capability |= ACER_CAP_WIRELESS;
1209 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1210 interface->capability |= ACER_CAP_THREEG;
1211 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1212 interface->capability |= ACER_CAP_BLUETOOTH;
1213
1214 commun_fn_key_number = type_aa->commun_fn_key_number;
1215 }
1216
1217 static acpi_status WMID_set_capabilities(void)
1218 {
1219 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1220 union acpi_object *obj;
1221 acpi_status status;
1222 u32 devices;
1223
1224 status = wmi_query_block(WMID_GUID2, 1, &out);
1225 if (ACPI_FAILURE(status))
1226 return status;
1227
1228 obj = (union acpi_object *) out.pointer;
1229 if (obj) {
1230 if (obj->type == ACPI_TYPE_BUFFER &&
1231 (obj->buffer.length == sizeof(u32) ||
1232 obj->buffer.length == sizeof(u64))) {
1233 devices = *((u32 *) obj->buffer.pointer);
1234 } else if (obj->type == ACPI_TYPE_INTEGER) {
1235 devices = (u32) obj->integer.value;
1236 } else {
1237 kfree(out.pointer);
1238 return AE_ERROR;
1239 }
1240 } else {
1241 kfree(out.pointer);
1242 return AE_ERROR;
1243 }
1244
1245 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1246 if (devices & 0x07)
1247 interface->capability |= ACER_CAP_WIRELESS;
1248 if (devices & 0x40)
1249 interface->capability |= ACER_CAP_THREEG;
1250 if (devices & 0x10)
1251 interface->capability |= ACER_CAP_BLUETOOTH;
1252
1253 if (!(devices & 0x20))
1254 max_brightness = 0x9;
1255
1256 kfree(out.pointer);
1257 return status;
1258 }
1259
1260 static struct wmi_interface wmid_interface = {
1261 .type = ACER_WMID,
1262 };
1263
1264 static struct wmi_interface wmid_v2_interface = {
1265 .type = ACER_WMID_v2,
1266 };
1267
1268 /*
1269 * Generic Device (interface-independent)
1270 */
1271
1272 static acpi_status get_u32(u32 *value, u32 cap)
1273 {
1274 acpi_status status = AE_ERROR;
1275
1276 switch (interface->type) {
1277 case ACER_AMW0:
1278 status = AMW0_get_u32(value, cap);
1279 break;
1280 case ACER_AMW0_V2:
1281 if (cap == ACER_CAP_MAILLED) {
1282 status = AMW0_get_u32(value, cap);
1283 break;
1284 }
1285 case ACER_WMID:
1286 status = WMID_get_u32(value, cap);
1287 break;
1288 case ACER_WMID_v2:
1289 if (cap & (ACER_CAP_WIRELESS |
1290 ACER_CAP_BLUETOOTH |
1291 ACER_CAP_THREEG))
1292 status = wmid_v2_get_u32(value, cap);
1293 else if (wmi_has_guid(WMID_GUID2))
1294 status = WMID_get_u32(value, cap);
1295 break;
1296 }
1297
1298 return status;
1299 }
1300
1301 static acpi_status set_u32(u32 value, u32 cap)
1302 {
1303 acpi_status status;
1304
1305 if (interface->capability & cap) {
1306 switch (interface->type) {
1307 case ACER_AMW0:
1308 return AMW0_set_u32(value, cap);
1309 case ACER_AMW0_V2:
1310 if (cap == ACER_CAP_MAILLED)
1311 return AMW0_set_u32(value, cap);
1312
1313 /*
1314 * On some models, some WMID methods don't toggle
1315 * properly. For those cases, we want to run the AMW0
1316 * method afterwards to be certain we've really toggled
1317 * the device state.
1318 */
1319 if (cap == ACER_CAP_WIRELESS ||
1320 cap == ACER_CAP_BLUETOOTH) {
1321 status = WMID_set_u32(value, cap);
1322 if (ACPI_FAILURE(status))
1323 return status;
1324
1325 return AMW0_set_u32(value, cap);
1326 }
1327 case ACER_WMID:
1328 return WMID_set_u32(value, cap);
1329 case ACER_WMID_v2:
1330 if (cap & (ACER_CAP_WIRELESS |
1331 ACER_CAP_BLUETOOTH |
1332 ACER_CAP_THREEG))
1333 return wmid_v2_set_u32(value, cap);
1334 else if (wmi_has_guid(WMID_GUID2))
1335 return WMID_set_u32(value, cap);
1336 default:
1337 return AE_BAD_PARAMETER;
1338 }
1339 }
1340 return AE_BAD_PARAMETER;
1341 }
1342
1343 static void __init acer_commandline_init(void)
1344 {
1345 /*
1346 * These will all fail silently if the value given is invalid, or the
1347 * capability isn't available on the given interface
1348 */
1349 if (mailled >= 0)
1350 set_u32(mailled, ACER_CAP_MAILLED);
1351 if (!has_type_aa && threeg >= 0)
1352 set_u32(threeg, ACER_CAP_THREEG);
1353 if (brightness >= 0)
1354 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1355 }
1356
1357 /*
1358 * LED device (Mail LED only, no other LEDs known yet)
1359 */
1360 static void mail_led_set(struct led_classdev *led_cdev,
1361 enum led_brightness value)
1362 {
1363 set_u32(value, ACER_CAP_MAILLED);
1364 }
1365
1366 static struct led_classdev mail_led = {
1367 .name = "acer-wmi::mail",
1368 .brightness_set = mail_led_set,
1369 };
1370
1371 static int acer_led_init(struct device *dev)
1372 {
1373 return led_classdev_register(dev, &mail_led);
1374 }
1375
1376 static void acer_led_exit(void)
1377 {
1378 set_u32(LED_OFF, ACER_CAP_MAILLED);
1379 led_classdev_unregister(&mail_led);
1380 }
1381
1382 /*
1383 * Backlight device
1384 */
1385 static struct backlight_device *acer_backlight_device;
1386
1387 static int read_brightness(struct backlight_device *bd)
1388 {
1389 u32 value;
1390 get_u32(&value, ACER_CAP_BRIGHTNESS);
1391 return value;
1392 }
1393
1394 static int update_bl_status(struct backlight_device *bd)
1395 {
1396 int intensity = bd->props.brightness;
1397
1398 if (bd->props.power != FB_BLANK_UNBLANK)
1399 intensity = 0;
1400 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1401 intensity = 0;
1402
1403 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1404
1405 return 0;
1406 }
1407
1408 static const struct backlight_ops acer_bl_ops = {
1409 .get_brightness = read_brightness,
1410 .update_status = update_bl_status,
1411 };
1412
1413 static int acer_backlight_init(struct device *dev)
1414 {
1415 struct backlight_properties props;
1416 struct backlight_device *bd;
1417
1418 memset(&props, 0, sizeof(struct backlight_properties));
1419 props.type = BACKLIGHT_PLATFORM;
1420 props.max_brightness = max_brightness;
1421 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1422 &props);
1423 if (IS_ERR(bd)) {
1424 pr_err("Could not register Acer backlight device\n");
1425 acer_backlight_device = NULL;
1426 return PTR_ERR(bd);
1427 }
1428
1429 acer_backlight_device = bd;
1430
1431 bd->props.power = FB_BLANK_UNBLANK;
1432 bd->props.brightness = read_brightness(bd);
1433 backlight_update_status(bd);
1434 return 0;
1435 }
1436
1437 static void acer_backlight_exit(void)
1438 {
1439 backlight_device_unregister(acer_backlight_device);
1440 }
1441
1442 /*
1443 * Accelerometer device
1444 */
1445 static acpi_handle gsensor_handle;
1446
1447 static int acer_gsensor_init(void)
1448 {
1449 acpi_status status;
1450 struct acpi_buffer output;
1451 union acpi_object out_obj;
1452
1453 output.length = sizeof(out_obj);
1454 output.pointer = &out_obj;
1455 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1456 if (ACPI_FAILURE(status))
1457 return -1;
1458
1459 return 0;
1460 }
1461
1462 static int acer_gsensor_open(struct input_dev *input)
1463 {
1464 return acer_gsensor_init();
1465 }
1466
1467 static int acer_gsensor_event(void)
1468 {
1469 acpi_status status;
1470 struct acpi_buffer output;
1471 union acpi_object out_obj[5];
1472
1473 if (!has_cap(ACER_CAP_ACCEL))
1474 return -1;
1475
1476 output.length = sizeof(out_obj);
1477 output.pointer = out_obj;
1478
1479 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1480 if (ACPI_FAILURE(status))
1481 return -1;
1482
1483 if (out_obj->package.count != 4)
1484 return -1;
1485
1486 input_report_abs(acer_wmi_accel_dev, ABS_X,
1487 (s16)out_obj->package.elements[0].integer.value);
1488 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1489 (s16)out_obj->package.elements[1].integer.value);
1490 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1491 (s16)out_obj->package.elements[2].integer.value);
1492 input_sync(acer_wmi_accel_dev);
1493 return 0;
1494 }
1495
1496 /*
1497 * Rfkill devices
1498 */
1499 static void acer_rfkill_update(struct work_struct *ignored);
1500 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1501 static void acer_rfkill_update(struct work_struct *ignored)
1502 {
1503 u32 state;
1504 acpi_status status;
1505
1506 if (has_cap(ACER_CAP_WIRELESS)) {
1507 status = get_u32(&state, ACER_CAP_WIRELESS);
1508 if (ACPI_SUCCESS(status)) {
1509 if (quirks->wireless == 3)
1510 rfkill_set_hw_state(wireless_rfkill, !state);
1511 else
1512 rfkill_set_sw_state(wireless_rfkill, !state);
1513 }
1514 }
1515
1516 if (has_cap(ACER_CAP_BLUETOOTH)) {
1517 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1518 if (ACPI_SUCCESS(status))
1519 rfkill_set_sw_state(bluetooth_rfkill, !state);
1520 }
1521
1522 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1523 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1524 if (ACPI_SUCCESS(status))
1525 rfkill_set_sw_state(threeg_rfkill, !state);
1526 }
1527
1528 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1529 }
1530
1531 static int acer_rfkill_set(void *data, bool blocked)
1532 {
1533 acpi_status status;
1534 u32 cap = (unsigned long)data;
1535
1536 if (rfkill_inited) {
1537 status = set_u32(!blocked, cap);
1538 if (ACPI_FAILURE(status))
1539 return -ENODEV;
1540 }
1541
1542 return 0;
1543 }
1544
1545 static const struct rfkill_ops acer_rfkill_ops = {
1546 .set_block = acer_rfkill_set,
1547 };
1548
1549 static struct rfkill *acer_rfkill_register(struct device *dev,
1550 enum rfkill_type type,
1551 char *name, u32 cap)
1552 {
1553 int err;
1554 struct rfkill *rfkill_dev;
1555 u32 state;
1556 acpi_status status;
1557
1558 rfkill_dev = rfkill_alloc(name, dev, type,
1559 &acer_rfkill_ops,
1560 (void *)(unsigned long)cap);
1561 if (!rfkill_dev)
1562 return ERR_PTR(-ENOMEM);
1563
1564 status = get_u32(&state, cap);
1565
1566 err = rfkill_register(rfkill_dev);
1567 if (err) {
1568 rfkill_destroy(rfkill_dev);
1569 return ERR_PTR(err);
1570 }
1571
1572 if (ACPI_SUCCESS(status))
1573 rfkill_set_sw_state(rfkill_dev, !state);
1574
1575 return rfkill_dev;
1576 }
1577
1578 static int acer_rfkill_init(struct device *dev)
1579 {
1580 int err;
1581
1582 if (has_cap(ACER_CAP_WIRELESS)) {
1583 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1584 "acer-wireless", ACER_CAP_WIRELESS);
1585 if (IS_ERR(wireless_rfkill)) {
1586 err = PTR_ERR(wireless_rfkill);
1587 goto error_wireless;
1588 }
1589 }
1590
1591 if (has_cap(ACER_CAP_BLUETOOTH)) {
1592 bluetooth_rfkill = acer_rfkill_register(dev,
1593 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1594 ACER_CAP_BLUETOOTH);
1595 if (IS_ERR(bluetooth_rfkill)) {
1596 err = PTR_ERR(bluetooth_rfkill);
1597 goto error_bluetooth;
1598 }
1599 }
1600
1601 if (has_cap(ACER_CAP_THREEG)) {
1602 threeg_rfkill = acer_rfkill_register(dev,
1603 RFKILL_TYPE_WWAN, "acer-threeg",
1604 ACER_CAP_THREEG);
1605 if (IS_ERR(threeg_rfkill)) {
1606 err = PTR_ERR(threeg_rfkill);
1607 goto error_threeg;
1608 }
1609 }
1610
1611 rfkill_inited = true;
1612
1613 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1614 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1615 schedule_delayed_work(&acer_rfkill_work,
1616 round_jiffies_relative(HZ));
1617
1618 return 0;
1619
1620 error_threeg:
1621 if (has_cap(ACER_CAP_BLUETOOTH)) {
1622 rfkill_unregister(bluetooth_rfkill);
1623 rfkill_destroy(bluetooth_rfkill);
1624 }
1625 error_bluetooth:
1626 if (has_cap(ACER_CAP_WIRELESS)) {
1627 rfkill_unregister(wireless_rfkill);
1628 rfkill_destroy(wireless_rfkill);
1629 }
1630 error_wireless:
1631 return err;
1632 }
1633
1634 static void acer_rfkill_exit(void)
1635 {
1636 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1637 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1638 cancel_delayed_work_sync(&acer_rfkill_work);
1639
1640 if (has_cap(ACER_CAP_WIRELESS)) {
1641 rfkill_unregister(wireless_rfkill);
1642 rfkill_destroy(wireless_rfkill);
1643 }
1644
1645 if (has_cap(ACER_CAP_BLUETOOTH)) {
1646 rfkill_unregister(bluetooth_rfkill);
1647 rfkill_destroy(bluetooth_rfkill);
1648 }
1649
1650 if (has_cap(ACER_CAP_THREEG)) {
1651 rfkill_unregister(threeg_rfkill);
1652 rfkill_destroy(threeg_rfkill);
1653 }
1654 return;
1655 }
1656
1657 /*
1658 * sysfs interface
1659 */
1660 static ssize_t show_bool_threeg(struct device *dev,
1661 struct device_attribute *attr, char *buf)
1662 {
1663 u32 result; \
1664 acpi_status status;
1665
1666 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1667 current->comm);
1668 status = get_u32(&result, ACER_CAP_THREEG);
1669 if (ACPI_SUCCESS(status))
1670 return sprintf(buf, "%u\n", result);
1671 return sprintf(buf, "Read error\n");
1672 }
1673
1674 static ssize_t set_bool_threeg(struct device *dev,
1675 struct device_attribute *attr, const char *buf, size_t count)
1676 {
1677 u32 tmp = simple_strtoul(buf, NULL, 10);
1678 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1679 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1680 current->comm);
1681 if (ACPI_FAILURE(status))
1682 return -EINVAL;
1683 return count;
1684 }
1685 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1686 set_bool_threeg);
1687
1688 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1689 char *buf)
1690 {
1691 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
1692 current->comm);
1693 switch (interface->type) {
1694 case ACER_AMW0:
1695 return sprintf(buf, "AMW0\n");
1696 case ACER_AMW0_V2:
1697 return sprintf(buf, "AMW0 v2\n");
1698 case ACER_WMID:
1699 return sprintf(buf, "WMID\n");
1700 case ACER_WMID_v2:
1701 return sprintf(buf, "WMID v2\n");
1702 default:
1703 return sprintf(buf, "Error!\n");
1704 }
1705 }
1706
1707 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1708
1709 static void acer_wmi_notify(u32 value, void *context)
1710 {
1711 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1712 union acpi_object *obj;
1713 struct event_return_value return_value;
1714 acpi_status status;
1715 u16 device_state;
1716 const struct key_entry *key;
1717 u32 scancode;
1718
1719 status = wmi_get_event_data(value, &response);
1720 if (status != AE_OK) {
1721 pr_warn("bad event status 0x%x\n", status);
1722 return;
1723 }
1724
1725 obj = (union acpi_object *)response.pointer;
1726
1727 if (!obj)
1728 return;
1729 if (obj->type != ACPI_TYPE_BUFFER) {
1730 pr_warn("Unknown response received %d\n", obj->type);
1731 kfree(obj);
1732 return;
1733 }
1734 if (obj->buffer.length != 8) {
1735 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1736 kfree(obj);
1737 return;
1738 }
1739
1740 return_value = *((struct event_return_value *)obj->buffer.pointer);
1741 kfree(obj);
1742
1743 switch (return_value.function) {
1744 case WMID_HOTKEY_EVENT:
1745 device_state = return_value.device_state;
1746 pr_debug("device state: 0x%x\n", device_state);
1747
1748 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1749 return_value.key_num);
1750 if (!key) {
1751 pr_warn("Unknown key number - 0x%x\n",
1752 return_value.key_num);
1753 } else {
1754 scancode = return_value.key_num;
1755 switch (key->keycode) {
1756 case KEY_WLAN:
1757 case KEY_BLUETOOTH:
1758 if (has_cap(ACER_CAP_WIRELESS))
1759 rfkill_set_sw_state(wireless_rfkill,
1760 !(device_state & ACER_WMID3_GDS_WIRELESS));
1761 if (has_cap(ACER_CAP_THREEG))
1762 rfkill_set_sw_state(threeg_rfkill,
1763 !(device_state & ACER_WMID3_GDS_THREEG));
1764 if (has_cap(ACER_CAP_BLUETOOTH))
1765 rfkill_set_sw_state(bluetooth_rfkill,
1766 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1767 break;
1768 case KEY_TOUCHPAD_TOGGLE:
1769 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1770 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1771 }
1772 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1773 }
1774 break;
1775 case WMID_ACCEL_EVENT:
1776 acer_gsensor_event();
1777 break;
1778 default:
1779 pr_warn("Unknown function number - %d - %d\n",
1780 return_value.function, return_value.key_num);
1781 break;
1782 }
1783 }
1784
1785 static acpi_status
1786 wmid3_set_lm_mode(struct lm_input_params *params,
1787 struct lm_return_value *return_value)
1788 {
1789 acpi_status status;
1790 union acpi_object *obj;
1791
1792 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1793 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1794
1795 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1796 if (ACPI_FAILURE(status))
1797 return status;
1798
1799 obj = output.pointer;
1800
1801 if (!obj)
1802 return AE_ERROR;
1803 else if (obj->type != ACPI_TYPE_BUFFER) {
1804 kfree(obj);
1805 return AE_ERROR;
1806 }
1807 if (obj->buffer.length != 4) {
1808 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1809 kfree(obj);
1810 return AE_ERROR;
1811 }
1812
1813 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1814 kfree(obj);
1815
1816 return status;
1817 }
1818
1819 static int acer_wmi_enable_ec_raw(void)
1820 {
1821 struct lm_return_value return_value;
1822 acpi_status status;
1823 struct lm_input_params params = {
1824 .function_num = 0x1,
1825 .commun_devices = 0xFFFF,
1826 .devices = 0xFFFF,
1827 .lm_status = 0x00, /* Launch Manager Deactive */
1828 };
1829
1830 status = wmid3_set_lm_mode(&params, &return_value);
1831
1832 if (return_value.error_code || return_value.ec_return_value)
1833 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1834 return_value.error_code,
1835 return_value.ec_return_value);
1836 else
1837 pr_info("Enabled EC raw mode\n");
1838
1839 return status;
1840 }
1841
1842 static int acer_wmi_enable_lm(void)
1843 {
1844 struct lm_return_value return_value;
1845 acpi_status status;
1846 struct lm_input_params params = {
1847 .function_num = 0x1,
1848 .commun_devices = 0xFFFF,
1849 .devices = 0xFFFF,
1850 .lm_status = 0x01, /* Launch Manager Active */
1851 };
1852
1853 status = wmid3_set_lm_mode(&params, &return_value);
1854
1855 if (return_value.error_code || return_value.ec_return_value)
1856 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1857 return_value.error_code,
1858 return_value.ec_return_value);
1859
1860 return status;
1861 }
1862
1863 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1864 void *ctx, void **retval)
1865 {
1866 *(acpi_handle *)retval = ah;
1867 return AE_OK;
1868 }
1869
1870 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1871 acpi_handle *ah)
1872 {
1873 acpi_status status;
1874 acpi_handle handle;
1875
1876 BUG_ON(!name || !ah);
1877
1878 handle = NULL;
1879 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1880 (void *)name, &handle);
1881
1882 if (ACPI_SUCCESS(status)) {
1883 *ah = handle;
1884 return 0;
1885 } else {
1886 return -ENODEV;
1887 }
1888 }
1889
1890 static int __init acer_wmi_accel_setup(void)
1891 {
1892 int err;
1893
1894 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1895 if (err)
1896 return err;
1897
1898 interface->capability |= ACER_CAP_ACCEL;
1899
1900 acer_wmi_accel_dev = input_allocate_device();
1901 if (!acer_wmi_accel_dev)
1902 return -ENOMEM;
1903
1904 acer_wmi_accel_dev->open = acer_gsensor_open;
1905
1906 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1907 acer_wmi_accel_dev->phys = "wmi/input1";
1908 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1909 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1910 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1911 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1912 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1913
1914 err = input_register_device(acer_wmi_accel_dev);
1915 if (err)
1916 goto err_free_dev;
1917
1918 return 0;
1919
1920 err_free_dev:
1921 input_free_device(acer_wmi_accel_dev);
1922 return err;
1923 }
1924
1925 static void acer_wmi_accel_destroy(void)
1926 {
1927 input_unregister_device(acer_wmi_accel_dev);
1928 }
1929
1930 static int __init acer_wmi_input_setup(void)
1931 {
1932 acpi_status status;
1933 int err;
1934
1935 acer_wmi_input_dev = input_allocate_device();
1936 if (!acer_wmi_input_dev)
1937 return -ENOMEM;
1938
1939 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1940 acer_wmi_input_dev->phys = "wmi/input0";
1941 acer_wmi_input_dev->id.bustype = BUS_HOST;
1942
1943 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1944 if (err)
1945 goto err_free_dev;
1946
1947 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1948 acer_wmi_notify, NULL);
1949 if (ACPI_FAILURE(status)) {
1950 err = -EIO;
1951 goto err_free_keymap;
1952 }
1953
1954 err = input_register_device(acer_wmi_input_dev);
1955 if (err)
1956 goto err_uninstall_notifier;
1957
1958 return 0;
1959
1960 err_uninstall_notifier:
1961 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1962 err_free_keymap:
1963 sparse_keymap_free(acer_wmi_input_dev);
1964 err_free_dev:
1965 input_free_device(acer_wmi_input_dev);
1966 return err;
1967 }
1968
1969 static void acer_wmi_input_destroy(void)
1970 {
1971 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1972 sparse_keymap_free(acer_wmi_input_dev);
1973 input_unregister_device(acer_wmi_input_dev);
1974 }
1975
1976 /*
1977 * debugfs functions
1978 */
1979 static u32 get_wmid_devices(void)
1980 {
1981 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1982 union acpi_object *obj;
1983 acpi_status status;
1984 u32 devices = 0;
1985
1986 status = wmi_query_block(WMID_GUID2, 1, &out);
1987 if (ACPI_FAILURE(status))
1988 return 0;
1989
1990 obj = (union acpi_object *) out.pointer;
1991 if (obj) {
1992 if (obj->type == ACPI_TYPE_BUFFER &&
1993 (obj->buffer.length == sizeof(u32) ||
1994 obj->buffer.length == sizeof(u64))) {
1995 devices = *((u32 *) obj->buffer.pointer);
1996 } else if (obj->type == ACPI_TYPE_INTEGER) {
1997 devices = (u32) obj->integer.value;
1998 }
1999 }
2000
2001 kfree(out.pointer);
2002 return devices;
2003 }
2004
2005 /*
2006 * Platform device
2007 */
2008 static int acer_platform_probe(struct platform_device *device)
2009 {
2010 int err;
2011
2012 if (has_cap(ACER_CAP_MAILLED)) {
2013 err = acer_led_init(&device->dev);
2014 if (err)
2015 goto error_mailled;
2016 }
2017
2018 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2019 err = acer_backlight_init(&device->dev);
2020 if (err)
2021 goto error_brightness;
2022 }
2023
2024 err = acer_rfkill_init(&device->dev);
2025 if (err)
2026 goto error_rfkill;
2027
2028 return err;
2029
2030 error_rfkill:
2031 if (has_cap(ACER_CAP_BRIGHTNESS))
2032 acer_backlight_exit();
2033 error_brightness:
2034 if (has_cap(ACER_CAP_MAILLED))
2035 acer_led_exit();
2036 error_mailled:
2037 return err;
2038 }
2039
2040 static int acer_platform_remove(struct platform_device *device)
2041 {
2042 if (has_cap(ACER_CAP_MAILLED))
2043 acer_led_exit();
2044 if (has_cap(ACER_CAP_BRIGHTNESS))
2045 acer_backlight_exit();
2046
2047 acer_rfkill_exit();
2048 return 0;
2049 }
2050
2051 static int acer_suspend(struct device *dev)
2052 {
2053 u32 value;
2054 struct acer_data *data = &interface->data;
2055
2056 if (!data)
2057 return -ENOMEM;
2058
2059 if (has_cap(ACER_CAP_MAILLED)) {
2060 get_u32(&value, ACER_CAP_MAILLED);
2061 set_u32(LED_OFF, ACER_CAP_MAILLED);
2062 data->mailled = value;
2063 }
2064
2065 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2066 get_u32(&value, ACER_CAP_BRIGHTNESS);
2067 data->brightness = value;
2068 }
2069
2070 return 0;
2071 }
2072
2073 static int acer_resume(struct device *dev)
2074 {
2075 struct acer_data *data = &interface->data;
2076
2077 if (!data)
2078 return -ENOMEM;
2079
2080 if (has_cap(ACER_CAP_MAILLED))
2081 set_u32(data->mailled, ACER_CAP_MAILLED);
2082
2083 if (has_cap(ACER_CAP_BRIGHTNESS))
2084 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2085
2086 if (has_cap(ACER_CAP_ACCEL))
2087 acer_gsensor_init();
2088
2089 return 0;
2090 }
2091
2092 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2093
2094 static void acer_platform_shutdown(struct platform_device *device)
2095 {
2096 struct acer_data *data = &interface->data;
2097
2098 if (!data)
2099 return;
2100
2101 if (has_cap(ACER_CAP_MAILLED))
2102 set_u32(LED_OFF, ACER_CAP_MAILLED);
2103 }
2104
2105 static struct platform_driver acer_platform_driver = {
2106 .driver = {
2107 .name = "acer-wmi",
2108 .owner = THIS_MODULE,
2109 .pm = &acer_pm,
2110 },
2111 .probe = acer_platform_probe,
2112 .remove = acer_platform_remove,
2113 .shutdown = acer_platform_shutdown,
2114 };
2115
2116 static struct platform_device *acer_platform_device;
2117
2118 static int remove_sysfs(struct platform_device *device)
2119 {
2120 if (has_cap(ACER_CAP_THREEG))
2121 device_remove_file(&device->dev, &dev_attr_threeg);
2122
2123 device_remove_file(&device->dev, &dev_attr_interface);
2124
2125 return 0;
2126 }
2127
2128 static int create_sysfs(void)
2129 {
2130 int retval = -ENOMEM;
2131
2132 if (has_cap(ACER_CAP_THREEG)) {
2133 retval = device_create_file(&acer_platform_device->dev,
2134 &dev_attr_threeg);
2135 if (retval)
2136 goto error_sysfs;
2137 }
2138
2139 retval = device_create_file(&acer_platform_device->dev,
2140 &dev_attr_interface);
2141 if (retval)
2142 goto error_sysfs;
2143
2144 return 0;
2145
2146 error_sysfs:
2147 remove_sysfs(acer_platform_device);
2148 return retval;
2149 }
2150
2151 static void remove_debugfs(void)
2152 {
2153 debugfs_remove(interface->debug.devices);
2154 debugfs_remove(interface->debug.root);
2155 }
2156
2157 static int create_debugfs(void)
2158 {
2159 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2160 if (!interface->debug.root) {
2161 pr_err("Failed to create debugfs directory");
2162 return -ENOMEM;
2163 }
2164
2165 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2166 interface->debug.root,
2167 &interface->debug.wmid_devices);
2168 if (!interface->debug.devices)
2169 goto error_debugfs;
2170
2171 return 0;
2172
2173 error_debugfs:
2174 remove_debugfs();
2175 return -ENOMEM;
2176 }
2177
2178 static int __init acer_wmi_init(void)
2179 {
2180 int err;
2181
2182 pr_info("Acer Laptop ACPI-WMI Extras\n");
2183
2184 if (dmi_check_system(acer_blacklist)) {
2185 pr_info("Blacklisted hardware detected - not loading\n");
2186 return -ENODEV;
2187 }
2188
2189 find_quirks();
2190
2191 /*
2192 * Detect which ACPI-WMI interface we're using.
2193 */
2194 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2195 interface = &AMW0_V2_interface;
2196
2197 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2198 interface = &wmid_interface;
2199
2200 if (wmi_has_guid(WMID_GUID3))
2201 interface = &wmid_v2_interface;
2202
2203 if (interface)
2204 dmi_walk(type_aa_dmi_decode, NULL);
2205
2206 if (wmi_has_guid(WMID_GUID2) && interface) {
2207 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2208 pr_err("Unable to detect available WMID devices\n");
2209 return -ENODEV;
2210 }
2211 /* WMID always provides brightness methods */
2212 interface->capability |= ACER_CAP_BRIGHTNESS;
2213 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2214 pr_err("No WMID device detection method found\n");
2215 return -ENODEV;
2216 }
2217
2218 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2219 interface = &AMW0_interface;
2220
2221 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2222 pr_err("Unable to detect available AMW0 devices\n");
2223 return -ENODEV;
2224 }
2225 }
2226
2227 if (wmi_has_guid(AMW0_GUID1))
2228 AMW0_find_mailled();
2229
2230 if (!interface) {
2231 pr_err("No or unsupported WMI interface, unable to load\n");
2232 return -ENODEV;
2233 }
2234
2235 set_quirks();
2236
2237 if (dmi_check_system(video_vendor_dmi_table))
2238 acpi_video_dmi_promote_vendor();
2239 if (acpi_video_backlight_support()) {
2240 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2241 pr_info("Brightness must be controlled by acpi video driver\n");
2242 } else {
2243 pr_info("Disabling ACPI video driver\n");
2244 acpi_video_unregister();
2245 }
2246
2247 if (wmi_has_guid(WMID_GUID3)) {
2248 if (ec_raw_mode) {
2249 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2250 pr_err("Cannot enable EC raw mode\n");
2251 return -ENODEV;
2252 }
2253 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2254 pr_err("Cannot enable Launch Manager mode\n");
2255 return -ENODEV;
2256 }
2257 } else if (ec_raw_mode) {
2258 pr_info("No WMID EC raw mode enable method\n");
2259 }
2260
2261 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2262 err = acer_wmi_input_setup();
2263 if (err)
2264 return err;
2265 }
2266
2267 acer_wmi_accel_setup();
2268
2269 err = platform_driver_register(&acer_platform_driver);
2270 if (err) {
2271 pr_err("Unable to register platform driver\n");
2272 goto error_platform_register;
2273 }
2274
2275 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2276 if (!acer_platform_device) {
2277 err = -ENOMEM;
2278 goto error_device_alloc;
2279 }
2280
2281 err = platform_device_add(acer_platform_device);
2282 if (err)
2283 goto error_device_add;
2284
2285 err = create_sysfs();
2286 if (err)
2287 goto error_create_sys;
2288
2289 if (wmi_has_guid(WMID_GUID2)) {
2290 interface->debug.wmid_devices = get_wmid_devices();
2291 err = create_debugfs();
2292 if (err)
2293 goto error_create_debugfs;
2294 }
2295
2296 /* Override any initial settings with values from the commandline */
2297 acer_commandline_init();
2298
2299 return 0;
2300
2301 error_create_debugfs:
2302 remove_sysfs(acer_platform_device);
2303 error_create_sys:
2304 platform_device_del(acer_platform_device);
2305 error_device_add:
2306 platform_device_put(acer_platform_device);
2307 error_device_alloc:
2308 platform_driver_unregister(&acer_platform_driver);
2309 error_platform_register:
2310 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2311 acer_wmi_input_destroy();
2312 if (has_cap(ACER_CAP_ACCEL))
2313 acer_wmi_accel_destroy();
2314
2315 return err;
2316 }
2317
2318 static void __exit acer_wmi_exit(void)
2319 {
2320 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2321 acer_wmi_input_destroy();
2322
2323 if (has_cap(ACER_CAP_ACCEL))
2324 acer_wmi_accel_destroy();
2325
2326 remove_sysfs(acer_platform_device);
2327 remove_debugfs();
2328 platform_device_unregister(acer_platform_device);
2329 platform_driver_unregister(&acer_platform_driver);
2330
2331 pr_info("Acer Laptop WMI Extras unloaded\n");
2332 return;
2333 }
2334
2335 module_init(acer_wmi_init);
2336 module_exit(acer_wmi_exit);
kernel source for telekom puls (alcatel/mediatek)