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Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[mirror_ubuntu-artful-kernel.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_KEY, 0x86, {KEY_WLAN} },
132 {KE_END, 0}
133 };
134
135 static struct input_dev *acer_wmi_input_dev;
136 static struct input_dev *acer_wmi_accel_dev;
137
138 struct event_return_value {
139 u8 function;
140 u8 key_num;
141 u16 device_state;
142 u32 reserved;
143 } __attribute__((packed));
144
145 /*
146 * GUID3 Get Device Status device flags
147 */
148 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
149 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
150 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
151 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
152 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
153
154 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
155
156 /* Hotkey Customized Setting and Acer Application Status.
157 * Set Device Default Value and Report Acer Application Status.
158 * When Acer Application starts, it will run this method to inform
159 * BIOS/EC that Acer Application is on.
160 * App Status
161 * Bit[0]: Launch Manager Status
162 * Bit[1]: ePM Status
163 * Bit[2]: Device Control Status
164 * Bit[3]: Acer Power Button Utility Status
165 * Bit[4]: RF Button Status
166 * Bit[5]: ODD PM Status
167 * Bit[6]: Device Default Value Control
168 * Bit[7]: Hall Sensor Application Status
169 */
170 struct func_input_params {
171 u8 function_num; /* Function Number */
172 u16 commun_devices; /* Communication type devices default status */
173 u16 devices; /* Other type devices default status */
174 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
175 u8 app_mask; /* Bit mask to app_status */
176 u8 reserved;
177 } __attribute__((packed));
178
179 struct func_return_value {
180 u8 error_code; /* Error Code */
181 u8 ec_return_value; /* EC Return Value */
182 u16 reserved;
183 } __attribute__((packed));
184
185 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
186 u8 function_num; /* Function Number */
187 u8 hotkey_number; /* Hotkey Number */
188 u16 devices; /* Set Device */
189 u8 volume_value; /* Volume Value */
190 } __attribute__((packed));
191
192 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
193 u8 function_num; /* Function Number */
194 u8 hotkey_number; /* Hotkey Number */
195 u16 devices; /* Get Device */
196 } __attribute__((packed));
197
198 struct wmid3_gds_return_value { /* Get Device Status return value*/
199 u8 error_code; /* Error Code */
200 u8 ec_return_value; /* EC Return Value */
201 u16 devices; /* Current Device Status */
202 u32 reserved;
203 } __attribute__((packed));
204
205 struct hotkey_function_type_aa {
206 u8 type;
207 u8 length;
208 u16 handle;
209 u16 commun_func_bitmap;
210 u16 application_func_bitmap;
211 u16 media_func_bitmap;
212 u16 display_func_bitmap;
213 u16 others_func_bitmap;
214 u8 commun_fn_key_number;
215 } __attribute__((packed));
216
217 /*
218 * Interface capability flags
219 */
220 #define ACER_CAP_MAILLED (1<<0)
221 #define ACER_CAP_WIRELESS (1<<1)
222 #define ACER_CAP_BLUETOOTH (1<<2)
223 #define ACER_CAP_BRIGHTNESS (1<<3)
224 #define ACER_CAP_THREEG (1<<4)
225 #define ACER_CAP_ACCEL (1<<5)
226 #define ACER_CAP_RFBTN (1<<6)
227 #define ACER_CAP_ANY (0xFFFFFFFF)
228
229 /*
230 * Interface type flags
231 */
232 enum interface_flags {
233 ACER_AMW0,
234 ACER_AMW0_V2,
235 ACER_WMID,
236 ACER_WMID_v2,
237 };
238
239 #define ACER_DEFAULT_WIRELESS 0
240 #define ACER_DEFAULT_BLUETOOTH 0
241 #define ACER_DEFAULT_MAILLED 0
242 #define ACER_DEFAULT_THREEG 0
243
244 static int max_brightness = 0xF;
245
246 static int mailled = -1;
247 static int brightness = -1;
248 static int threeg = -1;
249 static int force_series;
250 static bool ec_raw_mode;
251 static bool has_type_aa;
252 static u16 commun_func_bitmap;
253 static u8 commun_fn_key_number;
254
255 module_param(mailled, int, 0444);
256 module_param(brightness, int, 0444);
257 module_param(threeg, int, 0444);
258 module_param(force_series, int, 0444);
259 module_param(ec_raw_mode, bool, 0444);
260 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
261 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
262 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
263 MODULE_PARM_DESC(force_series, "Force a different laptop series");
264 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
265
266 struct acer_data {
267 int mailled;
268 int threeg;
269 int brightness;
270 };
271
272 struct acer_debug {
273 struct dentry *root;
274 struct dentry *devices;
275 u32 wmid_devices;
276 };
277
278 static struct rfkill *wireless_rfkill;
279 static struct rfkill *bluetooth_rfkill;
280 static struct rfkill *threeg_rfkill;
281 static bool rfkill_inited;
282
283 /* Each low-level interface must define at least some of the following */
284 struct wmi_interface {
285 /* The WMI device type */
286 u32 type;
287
288 /* The capabilities this interface provides */
289 u32 capability;
290
291 /* Private data for the current interface */
292 struct acer_data data;
293
294 /* debugfs entries associated with this interface */
295 struct acer_debug debug;
296 };
297
298 /* The static interface pointer, points to the currently detected interface */
299 static struct wmi_interface *interface;
300
301 /*
302 * Embedded Controller quirks
303 * Some laptops require us to directly access the EC to either enable or query
304 * features that are not available through WMI.
305 */
306
307 struct quirk_entry {
308 u8 wireless;
309 u8 mailled;
310 s8 brightness;
311 u8 bluetooth;
312 };
313
314 static struct quirk_entry *quirks;
315
316 static void __init set_quirks(void)
317 {
318 if (!interface)
319 return;
320
321 if (quirks->mailled)
322 interface->capability |= ACER_CAP_MAILLED;
323
324 if (quirks->brightness)
325 interface->capability |= ACER_CAP_BRIGHTNESS;
326 }
327
328 static int __init dmi_matched(const struct dmi_system_id *dmi)
329 {
330 quirks = dmi->driver_data;
331 return 1;
332 }
333
334 static struct quirk_entry quirk_unknown = {
335 };
336
337 static struct quirk_entry quirk_acer_aspire_1520 = {
338 .brightness = -1,
339 };
340
341 static struct quirk_entry quirk_acer_travelmate_2490 = {
342 .mailled = 1,
343 };
344
345 /* This AMW0 laptop has no bluetooth */
346 static struct quirk_entry quirk_medion_md_98300 = {
347 .wireless = 1,
348 };
349
350 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
351 .wireless = 2,
352 };
353
354 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
355 .wireless = 3,
356 };
357
358 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
359 static const struct dmi_system_id acer_blacklist[] __initconst = {
360 {
361 .ident = "Acer Aspire One (SSD)",
362 .matches = {
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
365 },
366 },
367 {
368 .ident = "Acer Aspire One (HDD)",
369 .matches = {
370 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
371 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
372 },
373 },
374 {}
375 };
376
377 static const struct dmi_system_id amw0_whitelist[] __initconst = {
378 {
379 .ident = "Acer",
380 .matches = {
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 },
383 },
384 {
385 .ident = "Gateway",
386 .matches = {
387 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
388 },
389 },
390 {
391 .ident = "Packard Bell",
392 .matches = {
393 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
394 },
395 },
396 {}
397 };
398
399 /*
400 * This quirk table is only for Acer/Gateway/Packard Bell family
401 * that those machines are supported by acer-wmi driver.
402 */
403 static const struct dmi_system_id acer_quirks[] __initconst = {
404 {
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 1360",
407 .matches = {
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
410 },
411 .driver_data = &quirk_acer_aspire_1520,
412 },
413 {
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 1520",
416 .matches = {
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
419 },
420 .driver_data = &quirk_acer_aspire_1520,
421 },
422 {
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 3100",
425 .matches = {
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
428 },
429 .driver_data = &quirk_acer_travelmate_2490,
430 },
431 {
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 3610",
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
437 },
438 .driver_data = &quirk_acer_travelmate_2490,
439 },
440 {
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 5100",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
446 },
447 .driver_data = &quirk_acer_travelmate_2490,
448 },
449 {
450 .callback = dmi_matched,
451 .ident = "Acer Aspire 5610",
452 .matches = {
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
455 },
456 .driver_data = &quirk_acer_travelmate_2490,
457 },
458 {
459 .callback = dmi_matched,
460 .ident = "Acer Aspire 5630",
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
464 },
465 .driver_data = &quirk_acer_travelmate_2490,
466 },
467 {
468 .callback = dmi_matched,
469 .ident = "Acer Aspire 5650",
470 .matches = {
471 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
473 },
474 .driver_data = &quirk_acer_travelmate_2490,
475 },
476 {
477 .callback = dmi_matched,
478 .ident = "Acer Aspire 5680",
479 .matches = {
480 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
482 },
483 .driver_data = &quirk_acer_travelmate_2490,
484 },
485 {
486 .callback = dmi_matched,
487 .ident = "Acer Aspire 9110",
488 .matches = {
489 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
491 },
492 .driver_data = &quirk_acer_travelmate_2490,
493 },
494 {
495 .callback = dmi_matched,
496 .ident = "Acer TravelMate 2490",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
500 },
501 .driver_data = &quirk_acer_travelmate_2490,
502 },
503 {
504 .callback = dmi_matched,
505 .ident = "Acer TravelMate 4200",
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
509 },
510 .driver_data = &quirk_acer_travelmate_2490,
511 },
512 {}
513 };
514
515 /*
516 * This quirk list is for those non-acer machines that have AMW0_GUID1
517 * but supported by acer-wmi in past days. Keeping this quirk list here
518 * is only for backward compatible. Please do not add new machine to
519 * here anymore. Those non-acer machines should be supported by
520 * appropriate wmi drivers.
521 */
522 static const struct dmi_system_id non_acer_quirks[] __initconst = {
523 {
524 .callback = dmi_matched,
525 .ident = "Fujitsu Siemens Amilo Li 1718",
526 .matches = {
527 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
528 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
529 },
530 .driver_data = &quirk_fujitsu_amilo_li_1718,
531 },
532 {
533 .callback = dmi_matched,
534 .ident = "Medion MD 98300",
535 .matches = {
536 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
537 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
538 },
539 .driver_data = &quirk_medion_md_98300,
540 },
541 {
542 .callback = dmi_matched,
543 .ident = "Lenovo Ideapad S205",
544 .matches = {
545 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
546 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
547 },
548 .driver_data = &quirk_lenovo_ideapad_s205,
549 },
550 {
551 .callback = dmi_matched,
552 .ident = "Lenovo Ideapad S205 (Brazos)",
553 .matches = {
554 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
556 },
557 .driver_data = &quirk_lenovo_ideapad_s205,
558 },
559 {
560 .callback = dmi_matched,
561 .ident = "Lenovo 3000 N200",
562 .matches = {
563 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
564 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
565 },
566 .driver_data = &quirk_fujitsu_amilo_li_1718,
567 },
568 {
569 .callback = dmi_matched,
570 .ident = "Lenovo Ideapad S205-10382JG",
571 .matches = {
572 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
573 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
574 },
575 .driver_data = &quirk_lenovo_ideapad_s205,
576 },
577 {
578 .callback = dmi_matched,
579 .ident = "Lenovo Ideapad S205-1038DPG",
580 .matches = {
581 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
582 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
583 },
584 .driver_data = &quirk_lenovo_ideapad_s205,
585 },
586 {}
587 };
588
589 static int __init
590 video_set_backlight_video_vendor(const struct dmi_system_id *d)
591 {
592 interface->capability &= ~ACER_CAP_BRIGHTNESS;
593 pr_info("Brightness must be controlled by generic video driver\n");
594 return 0;
595 }
596
597 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
598 {
599 .callback = video_set_backlight_video_vendor,
600 .ident = "Acer TravelMate 4750",
601 .matches = {
602 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
603 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
604 },
605 },
606 {
607 .callback = video_set_backlight_video_vendor,
608 .ident = "Acer Extensa 5235",
609 .matches = {
610 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
611 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
612 },
613 },
614 {
615 .callback = video_set_backlight_video_vendor,
616 .ident = "Acer TravelMate 5760",
617 .matches = {
618 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
619 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
620 },
621 },
622 {
623 .callback = video_set_backlight_video_vendor,
624 .ident = "Acer Aspire 5750",
625 .matches = {
626 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
627 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
628 },
629 },
630 {
631 .callback = video_set_backlight_video_vendor,
632 .ident = "Acer Aspire 5741",
633 .matches = {
634 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
635 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
636 },
637 },
638 {
639 /*
640 * Note no video_set_backlight_video_vendor, we must use the
641 * acer interface, as there is no native backlight interface.
642 */
643 .ident = "Acer KAV80",
644 .matches = {
645 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
646 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
647 },
648 },
649 {}
650 };
651
652 /* Find which quirks are needed for a particular vendor/ model pair */
653 static void __init find_quirks(void)
654 {
655 if (!force_series) {
656 dmi_check_system(acer_quirks);
657 dmi_check_system(non_acer_quirks);
658 } else if (force_series == 2490) {
659 quirks = &quirk_acer_travelmate_2490;
660 }
661
662 if (quirks == NULL)
663 quirks = &quirk_unknown;
664
665 set_quirks();
666 }
667
668 /*
669 * General interface convenience methods
670 */
671
672 static bool has_cap(u32 cap)
673 {
674 if ((interface->capability & cap) != 0)
675 return 1;
676
677 return 0;
678 }
679
680 /*
681 * AMW0 (V1) interface
682 */
683 struct wmab_args {
684 u32 eax;
685 u32 ebx;
686 u32 ecx;
687 u32 edx;
688 };
689
690 struct wmab_ret {
691 u32 eax;
692 u32 ebx;
693 u32 ecx;
694 u32 edx;
695 u32 eex;
696 };
697
698 static acpi_status wmab_execute(struct wmab_args *regbuf,
699 struct acpi_buffer *result)
700 {
701 struct acpi_buffer input;
702 acpi_status status;
703 input.length = sizeof(struct wmab_args);
704 input.pointer = (u8 *)regbuf;
705
706 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
707
708 return status;
709 }
710
711 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
712 {
713 int err;
714 u8 result;
715
716 switch (cap) {
717 case ACER_CAP_MAILLED:
718 switch (quirks->mailled) {
719 default:
720 err = ec_read(0xA, &result);
721 if (err)
722 return AE_ERROR;
723 *value = (result >> 7) & 0x1;
724 return AE_OK;
725 }
726 break;
727 case ACER_CAP_WIRELESS:
728 switch (quirks->wireless) {
729 case 1:
730 err = ec_read(0x7B, &result);
731 if (err)
732 return AE_ERROR;
733 *value = result & 0x1;
734 return AE_OK;
735 case 2:
736 err = ec_read(0x71, &result);
737 if (err)
738 return AE_ERROR;
739 *value = result & 0x1;
740 return AE_OK;
741 case 3:
742 err = ec_read(0x78, &result);
743 if (err)
744 return AE_ERROR;
745 *value = result & 0x1;
746 return AE_OK;
747 default:
748 err = ec_read(0xA, &result);
749 if (err)
750 return AE_ERROR;
751 *value = (result >> 2) & 0x1;
752 return AE_OK;
753 }
754 break;
755 case ACER_CAP_BLUETOOTH:
756 switch (quirks->bluetooth) {
757 default:
758 err = ec_read(0xA, &result);
759 if (err)
760 return AE_ERROR;
761 *value = (result >> 4) & 0x1;
762 return AE_OK;
763 }
764 break;
765 case ACER_CAP_BRIGHTNESS:
766 switch (quirks->brightness) {
767 default:
768 err = ec_read(0x83, &result);
769 if (err)
770 return AE_ERROR;
771 *value = result;
772 return AE_OK;
773 }
774 break;
775 default:
776 return AE_ERROR;
777 }
778 return AE_OK;
779 }
780
781 static acpi_status AMW0_set_u32(u32 value, u32 cap)
782 {
783 struct wmab_args args;
784
785 args.eax = ACER_AMW0_WRITE;
786 args.ebx = value ? (1<<8) : 0;
787 args.ecx = args.edx = 0;
788
789 switch (cap) {
790 case ACER_CAP_MAILLED:
791 if (value > 1)
792 return AE_BAD_PARAMETER;
793 args.ebx |= ACER_AMW0_MAILLED_MASK;
794 break;
795 case ACER_CAP_WIRELESS:
796 if (value > 1)
797 return AE_BAD_PARAMETER;
798 args.ebx |= ACER_AMW0_WIRELESS_MASK;
799 break;
800 case ACER_CAP_BLUETOOTH:
801 if (value > 1)
802 return AE_BAD_PARAMETER;
803 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
804 break;
805 case ACER_CAP_BRIGHTNESS:
806 if (value > max_brightness)
807 return AE_BAD_PARAMETER;
808 switch (quirks->brightness) {
809 default:
810 return ec_write(0x83, value);
811 break;
812 }
813 default:
814 return AE_ERROR;
815 }
816
817 /* Actually do the set */
818 return wmab_execute(&args, NULL);
819 }
820
821 static acpi_status __init AMW0_find_mailled(void)
822 {
823 struct wmab_args args;
824 struct wmab_ret ret;
825 acpi_status status = AE_OK;
826 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
827 union acpi_object *obj;
828
829 args.eax = 0x86;
830 args.ebx = args.ecx = args.edx = 0;
831
832 status = wmab_execute(&args, &out);
833 if (ACPI_FAILURE(status))
834 return status;
835
836 obj = (union acpi_object *) out.pointer;
837 if (obj && obj->type == ACPI_TYPE_BUFFER &&
838 obj->buffer.length == sizeof(struct wmab_ret)) {
839 ret = *((struct wmab_ret *) obj->buffer.pointer);
840 } else {
841 kfree(out.pointer);
842 return AE_ERROR;
843 }
844
845 if (ret.eex & 0x1)
846 interface->capability |= ACER_CAP_MAILLED;
847
848 kfree(out.pointer);
849
850 return AE_OK;
851 }
852
853 static const struct acpi_device_id norfkill_ids[] __initconst = {
854 { "VPC2004", 0},
855 { "IBM0068", 0},
856 { "LEN0068", 0},
857 { "SNY5001", 0}, /* sony-laptop in charge */
858 { "HPQ6601", 0},
859 { "", 0},
860 };
861
862 static int __init AMW0_set_cap_acpi_check_device(void)
863 {
864 const struct acpi_device_id *id;
865
866 for (id = norfkill_ids; id->id[0]; id++)
867 if (acpi_dev_found(id->id))
868 return true;
869
870 return false;
871 }
872
873 static acpi_status __init AMW0_set_capabilities(void)
874 {
875 struct wmab_args args;
876 struct wmab_ret ret;
877 acpi_status status;
878 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
879 union acpi_object *obj;
880
881 /*
882 * On laptops with this strange GUID (non Acer), normal probing doesn't
883 * work.
884 */
885 if (wmi_has_guid(AMW0_GUID2)) {
886 if ((quirks != &quirk_unknown) ||
887 !AMW0_set_cap_acpi_check_device())
888 interface->capability |= ACER_CAP_WIRELESS;
889 return AE_OK;
890 }
891
892 args.eax = ACER_AMW0_WRITE;
893 args.ecx = args.edx = 0;
894
895 args.ebx = 0xa2 << 8;
896 args.ebx |= ACER_AMW0_WIRELESS_MASK;
897
898 status = wmab_execute(&args, &out);
899 if (ACPI_FAILURE(status))
900 return status;
901
902 obj = out.pointer;
903 if (obj && obj->type == ACPI_TYPE_BUFFER &&
904 obj->buffer.length == sizeof(struct wmab_ret)) {
905 ret = *((struct wmab_ret *) obj->buffer.pointer);
906 } else {
907 status = AE_ERROR;
908 goto out;
909 }
910
911 if (ret.eax & 0x1)
912 interface->capability |= ACER_CAP_WIRELESS;
913
914 args.ebx = 2 << 8;
915 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
916
917 /*
918 * It's ok to use existing buffer for next wmab_execute call.
919 * But we need to kfree(out.pointer) if next wmab_execute fail.
920 */
921 status = wmab_execute(&args, &out);
922 if (ACPI_FAILURE(status))
923 goto out;
924
925 obj = (union acpi_object *) out.pointer;
926 if (obj && obj->type == ACPI_TYPE_BUFFER
927 && obj->buffer.length == sizeof(struct wmab_ret)) {
928 ret = *((struct wmab_ret *) obj->buffer.pointer);
929 } else {
930 status = AE_ERROR;
931 goto out;
932 }
933
934 if (ret.eax & 0x1)
935 interface->capability |= ACER_CAP_BLUETOOTH;
936
937 /*
938 * This appears to be safe to enable, since all Wistron based laptops
939 * appear to use the same EC register for brightness, even if they
940 * differ for wireless, etc
941 */
942 if (quirks->brightness >= 0)
943 interface->capability |= ACER_CAP_BRIGHTNESS;
944
945 status = AE_OK;
946 out:
947 kfree(out.pointer);
948 return status;
949 }
950
951 static struct wmi_interface AMW0_interface = {
952 .type = ACER_AMW0,
953 };
954
955 static struct wmi_interface AMW0_V2_interface = {
956 .type = ACER_AMW0_V2,
957 };
958
959 /*
960 * New interface (The WMID interface)
961 */
962 static acpi_status
963 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
964 {
965 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
966 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
967 union acpi_object *obj;
968 u32 tmp = 0;
969 acpi_status status;
970
971 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
972
973 if (ACPI_FAILURE(status))
974 return status;
975
976 obj = (union acpi_object *) result.pointer;
977 if (obj) {
978 if (obj->type == ACPI_TYPE_BUFFER &&
979 (obj->buffer.length == sizeof(u32) ||
980 obj->buffer.length == sizeof(u64))) {
981 tmp = *((u32 *) obj->buffer.pointer);
982 } else if (obj->type == ACPI_TYPE_INTEGER) {
983 tmp = (u32) obj->integer.value;
984 }
985 }
986
987 if (out)
988 *out = tmp;
989
990 kfree(result.pointer);
991
992 return status;
993 }
994
995 static acpi_status WMID_get_u32(u32 *value, u32 cap)
996 {
997 acpi_status status;
998 u8 tmp;
999 u32 result, method_id = 0;
1000
1001 switch (cap) {
1002 case ACER_CAP_WIRELESS:
1003 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1004 break;
1005 case ACER_CAP_BLUETOOTH:
1006 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1007 break;
1008 case ACER_CAP_BRIGHTNESS:
1009 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1010 break;
1011 case ACER_CAP_THREEG:
1012 method_id = ACER_WMID_GET_THREEG_METHODID;
1013 break;
1014 case ACER_CAP_MAILLED:
1015 if (quirks->mailled == 1) {
1016 ec_read(0x9f, &tmp);
1017 *value = tmp & 0x1;
1018 return 0;
1019 }
1020 default:
1021 return AE_ERROR;
1022 }
1023 status = WMI_execute_u32(method_id, 0, &result);
1024
1025 if (ACPI_SUCCESS(status))
1026 *value = (u8)result;
1027
1028 return status;
1029 }
1030
1031 static acpi_status WMID_set_u32(u32 value, u32 cap)
1032 {
1033 u32 method_id = 0;
1034 char param;
1035
1036 switch (cap) {
1037 case ACER_CAP_BRIGHTNESS:
1038 if (value > max_brightness)
1039 return AE_BAD_PARAMETER;
1040 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1041 break;
1042 case ACER_CAP_WIRELESS:
1043 if (value > 1)
1044 return AE_BAD_PARAMETER;
1045 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1046 break;
1047 case ACER_CAP_BLUETOOTH:
1048 if (value > 1)
1049 return AE_BAD_PARAMETER;
1050 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1051 break;
1052 case ACER_CAP_THREEG:
1053 if (value > 1)
1054 return AE_BAD_PARAMETER;
1055 method_id = ACER_WMID_SET_THREEG_METHODID;
1056 break;
1057 case ACER_CAP_MAILLED:
1058 if (value > 1)
1059 return AE_BAD_PARAMETER;
1060 if (quirks->mailled == 1) {
1061 param = value ? 0x92 : 0x93;
1062 i8042_lock_chip();
1063 i8042_command(&param, 0x1059);
1064 i8042_unlock_chip();
1065 return 0;
1066 }
1067 break;
1068 default:
1069 return AE_ERROR;
1070 }
1071 return WMI_execute_u32(method_id, (u32)value, NULL);
1072 }
1073
1074 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1075 {
1076 struct wmid3_gds_return_value return_value;
1077 acpi_status status;
1078 union acpi_object *obj;
1079 struct wmid3_gds_get_input_param params = {
1080 .function_num = 0x1,
1081 .hotkey_number = commun_fn_key_number,
1082 .devices = device,
1083 };
1084 struct acpi_buffer input = {
1085 sizeof(struct wmid3_gds_get_input_param),
1086 &params
1087 };
1088 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1089
1090 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1091 if (ACPI_FAILURE(status))
1092 return status;
1093
1094 obj = output.pointer;
1095
1096 if (!obj)
1097 return AE_ERROR;
1098 else if (obj->type != ACPI_TYPE_BUFFER) {
1099 kfree(obj);
1100 return AE_ERROR;
1101 }
1102 if (obj->buffer.length != 8) {
1103 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1104 kfree(obj);
1105 return AE_ERROR;
1106 }
1107
1108 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1109 kfree(obj);
1110
1111 if (return_value.error_code || return_value.ec_return_value)
1112 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1113 device,
1114 return_value.error_code,
1115 return_value.ec_return_value);
1116 else
1117 *value = !!(return_value.devices & device);
1118
1119 return status;
1120 }
1121
1122 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1123 {
1124 u16 device;
1125
1126 switch (cap) {
1127 case ACER_CAP_WIRELESS:
1128 device = ACER_WMID3_GDS_WIRELESS;
1129 break;
1130 case ACER_CAP_BLUETOOTH:
1131 device = ACER_WMID3_GDS_BLUETOOTH;
1132 break;
1133 case ACER_CAP_THREEG:
1134 device = ACER_WMID3_GDS_THREEG;
1135 break;
1136 default:
1137 return AE_ERROR;
1138 }
1139 return wmid3_get_device_status(value, device);
1140 }
1141
1142 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1143 {
1144 struct wmid3_gds_return_value return_value;
1145 acpi_status status;
1146 union acpi_object *obj;
1147 u16 devices;
1148 struct wmid3_gds_get_input_param get_params = {
1149 .function_num = 0x1,
1150 .hotkey_number = commun_fn_key_number,
1151 .devices = commun_func_bitmap,
1152 };
1153 struct acpi_buffer get_input = {
1154 sizeof(struct wmid3_gds_get_input_param),
1155 &get_params
1156 };
1157 struct wmid3_gds_set_input_param set_params = {
1158 .function_num = 0x2,
1159 .hotkey_number = commun_fn_key_number,
1160 .devices = commun_func_bitmap,
1161 };
1162 struct acpi_buffer set_input = {
1163 sizeof(struct wmid3_gds_set_input_param),
1164 &set_params
1165 };
1166 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1167 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1168
1169 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1170 if (ACPI_FAILURE(status))
1171 return status;
1172
1173 obj = output.pointer;
1174
1175 if (!obj)
1176 return AE_ERROR;
1177 else if (obj->type != ACPI_TYPE_BUFFER) {
1178 kfree(obj);
1179 return AE_ERROR;
1180 }
1181 if (obj->buffer.length != 8) {
1182 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1183 kfree(obj);
1184 return AE_ERROR;
1185 }
1186
1187 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1188 kfree(obj);
1189
1190 if (return_value.error_code || return_value.ec_return_value) {
1191 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1192 return_value.error_code,
1193 return_value.ec_return_value);
1194 return status;
1195 }
1196
1197 devices = return_value.devices;
1198 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1199
1200 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1201 if (ACPI_FAILURE(status))
1202 return status;
1203
1204 obj = output2.pointer;
1205
1206 if (!obj)
1207 return AE_ERROR;
1208 else if (obj->type != ACPI_TYPE_BUFFER) {
1209 kfree(obj);
1210 return AE_ERROR;
1211 }
1212 if (obj->buffer.length != 4) {
1213 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1214 kfree(obj);
1215 return AE_ERROR;
1216 }
1217
1218 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1219 kfree(obj);
1220
1221 if (return_value.error_code || return_value.ec_return_value)
1222 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1223 return_value.error_code,
1224 return_value.ec_return_value);
1225
1226 return status;
1227 }
1228
1229 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1230 {
1231 u16 device;
1232
1233 switch (cap) {
1234 case ACER_CAP_WIRELESS:
1235 device = ACER_WMID3_GDS_WIRELESS;
1236 break;
1237 case ACER_CAP_BLUETOOTH:
1238 device = ACER_WMID3_GDS_BLUETOOTH;
1239 break;
1240 case ACER_CAP_THREEG:
1241 device = ACER_WMID3_GDS_THREEG;
1242 break;
1243 default:
1244 return AE_ERROR;
1245 }
1246 return wmid3_set_device_status(value, device);
1247 }
1248
1249 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1250 {
1251 struct hotkey_function_type_aa *type_aa;
1252
1253 /* We are looking for OEM-specific Type AAh */
1254 if (header->type != 0xAA)
1255 return;
1256
1257 has_type_aa = true;
1258 type_aa = (struct hotkey_function_type_aa *) header;
1259
1260 pr_info("Function bitmap for Communication Button: 0x%x\n",
1261 type_aa->commun_func_bitmap);
1262 commun_func_bitmap = type_aa->commun_func_bitmap;
1263
1264 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1265 interface->capability |= ACER_CAP_WIRELESS;
1266 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1267 interface->capability |= ACER_CAP_THREEG;
1268 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1269 interface->capability |= ACER_CAP_BLUETOOTH;
1270 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) {
1271 interface->capability |= ACER_CAP_RFBTN;
1272 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1273 }
1274
1275 commun_fn_key_number = type_aa->commun_fn_key_number;
1276 }
1277
1278 static acpi_status __init WMID_set_capabilities(void)
1279 {
1280 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1281 union acpi_object *obj;
1282 acpi_status status;
1283 u32 devices;
1284
1285 status = wmi_query_block(WMID_GUID2, 0, &out);
1286 if (ACPI_FAILURE(status))
1287 return status;
1288
1289 obj = (union acpi_object *) out.pointer;
1290 if (obj) {
1291 if (obj->type == ACPI_TYPE_BUFFER &&
1292 (obj->buffer.length == sizeof(u32) ||
1293 obj->buffer.length == sizeof(u64))) {
1294 devices = *((u32 *) obj->buffer.pointer);
1295 } else if (obj->type == ACPI_TYPE_INTEGER) {
1296 devices = (u32) obj->integer.value;
1297 } else {
1298 kfree(out.pointer);
1299 return AE_ERROR;
1300 }
1301 } else {
1302 kfree(out.pointer);
1303 return AE_ERROR;
1304 }
1305
1306 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1307 if (devices & 0x07)
1308 interface->capability |= ACER_CAP_WIRELESS;
1309 if (devices & 0x40)
1310 interface->capability |= ACER_CAP_THREEG;
1311 if (devices & 0x10)
1312 interface->capability |= ACER_CAP_BLUETOOTH;
1313
1314 if (!(devices & 0x20))
1315 max_brightness = 0x9;
1316
1317 kfree(out.pointer);
1318 return status;
1319 }
1320
1321 static struct wmi_interface wmid_interface = {
1322 .type = ACER_WMID,
1323 };
1324
1325 static struct wmi_interface wmid_v2_interface = {
1326 .type = ACER_WMID_v2,
1327 };
1328
1329 /*
1330 * Generic Device (interface-independent)
1331 */
1332
1333 static acpi_status get_u32(u32 *value, u32 cap)
1334 {
1335 acpi_status status = AE_ERROR;
1336
1337 switch (interface->type) {
1338 case ACER_AMW0:
1339 status = AMW0_get_u32(value, cap);
1340 break;
1341 case ACER_AMW0_V2:
1342 if (cap == ACER_CAP_MAILLED) {
1343 status = AMW0_get_u32(value, cap);
1344 break;
1345 }
1346 case ACER_WMID:
1347 status = WMID_get_u32(value, cap);
1348 break;
1349 case ACER_WMID_v2:
1350 if (cap & (ACER_CAP_WIRELESS |
1351 ACER_CAP_BLUETOOTH |
1352 ACER_CAP_THREEG))
1353 status = wmid_v2_get_u32(value, cap);
1354 else if (wmi_has_guid(WMID_GUID2))
1355 status = WMID_get_u32(value, cap);
1356 break;
1357 }
1358
1359 return status;
1360 }
1361
1362 static acpi_status set_u32(u32 value, u32 cap)
1363 {
1364 acpi_status status;
1365
1366 if (interface->capability & cap) {
1367 switch (interface->type) {
1368 case ACER_AMW0:
1369 return AMW0_set_u32(value, cap);
1370 case ACER_AMW0_V2:
1371 if (cap == ACER_CAP_MAILLED)
1372 return AMW0_set_u32(value, cap);
1373
1374 /*
1375 * On some models, some WMID methods don't toggle
1376 * properly. For those cases, we want to run the AMW0
1377 * method afterwards to be certain we've really toggled
1378 * the device state.
1379 */
1380 if (cap == ACER_CAP_WIRELESS ||
1381 cap == ACER_CAP_BLUETOOTH) {
1382 status = WMID_set_u32(value, cap);
1383 if (ACPI_FAILURE(status))
1384 return status;
1385
1386 return AMW0_set_u32(value, cap);
1387 }
1388 case ACER_WMID:
1389 return WMID_set_u32(value, cap);
1390 case ACER_WMID_v2:
1391 if (cap & (ACER_CAP_WIRELESS |
1392 ACER_CAP_BLUETOOTH |
1393 ACER_CAP_THREEG))
1394 return wmid_v2_set_u32(value, cap);
1395 else if (wmi_has_guid(WMID_GUID2))
1396 return WMID_set_u32(value, cap);
1397 default:
1398 return AE_BAD_PARAMETER;
1399 }
1400 }
1401 return AE_BAD_PARAMETER;
1402 }
1403
1404 static void __init acer_commandline_init(void)
1405 {
1406 /*
1407 * These will all fail silently if the value given is invalid, or the
1408 * capability isn't available on the given interface
1409 */
1410 if (mailled >= 0)
1411 set_u32(mailled, ACER_CAP_MAILLED);
1412 if (!has_type_aa && threeg >= 0)
1413 set_u32(threeg, ACER_CAP_THREEG);
1414 if (brightness >= 0)
1415 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1416 }
1417
1418 /*
1419 * LED device (Mail LED only, no other LEDs known yet)
1420 */
1421 static void mail_led_set(struct led_classdev *led_cdev,
1422 enum led_brightness value)
1423 {
1424 set_u32(value, ACER_CAP_MAILLED);
1425 }
1426
1427 static struct led_classdev mail_led = {
1428 .name = "acer-wmi::mail",
1429 .brightness_set = mail_led_set,
1430 };
1431
1432 static int acer_led_init(struct device *dev)
1433 {
1434 return led_classdev_register(dev, &mail_led);
1435 }
1436
1437 static void acer_led_exit(void)
1438 {
1439 set_u32(LED_OFF, ACER_CAP_MAILLED);
1440 led_classdev_unregister(&mail_led);
1441 }
1442
1443 /*
1444 * Backlight device
1445 */
1446 static struct backlight_device *acer_backlight_device;
1447
1448 static int read_brightness(struct backlight_device *bd)
1449 {
1450 u32 value;
1451 get_u32(&value, ACER_CAP_BRIGHTNESS);
1452 return value;
1453 }
1454
1455 static int update_bl_status(struct backlight_device *bd)
1456 {
1457 int intensity = bd->props.brightness;
1458
1459 if (bd->props.power != FB_BLANK_UNBLANK)
1460 intensity = 0;
1461 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1462 intensity = 0;
1463
1464 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1465
1466 return 0;
1467 }
1468
1469 static const struct backlight_ops acer_bl_ops = {
1470 .get_brightness = read_brightness,
1471 .update_status = update_bl_status,
1472 };
1473
1474 static int acer_backlight_init(struct device *dev)
1475 {
1476 struct backlight_properties props;
1477 struct backlight_device *bd;
1478
1479 memset(&props, 0, sizeof(struct backlight_properties));
1480 props.type = BACKLIGHT_PLATFORM;
1481 props.max_brightness = max_brightness;
1482 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1483 &props);
1484 if (IS_ERR(bd)) {
1485 pr_err("Could not register Acer backlight device\n");
1486 acer_backlight_device = NULL;
1487 return PTR_ERR(bd);
1488 }
1489
1490 acer_backlight_device = bd;
1491
1492 bd->props.power = FB_BLANK_UNBLANK;
1493 bd->props.brightness = read_brightness(bd);
1494 backlight_update_status(bd);
1495 return 0;
1496 }
1497
1498 static void acer_backlight_exit(void)
1499 {
1500 backlight_device_unregister(acer_backlight_device);
1501 }
1502
1503 /*
1504 * Accelerometer device
1505 */
1506 static acpi_handle gsensor_handle;
1507
1508 static int acer_gsensor_init(void)
1509 {
1510 acpi_status status;
1511 struct acpi_buffer output;
1512 union acpi_object out_obj;
1513
1514 output.length = sizeof(out_obj);
1515 output.pointer = &out_obj;
1516 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1517 if (ACPI_FAILURE(status))
1518 return -1;
1519
1520 return 0;
1521 }
1522
1523 static int acer_gsensor_open(struct input_dev *input)
1524 {
1525 return acer_gsensor_init();
1526 }
1527
1528 static int acer_gsensor_event(void)
1529 {
1530 acpi_status status;
1531 struct acpi_buffer output;
1532 union acpi_object out_obj[5];
1533
1534 if (!has_cap(ACER_CAP_ACCEL))
1535 return -1;
1536
1537 output.length = sizeof(out_obj);
1538 output.pointer = out_obj;
1539
1540 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1541 if (ACPI_FAILURE(status))
1542 return -1;
1543
1544 if (out_obj->package.count != 4)
1545 return -1;
1546
1547 input_report_abs(acer_wmi_accel_dev, ABS_X,
1548 (s16)out_obj->package.elements[0].integer.value);
1549 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1550 (s16)out_obj->package.elements[1].integer.value);
1551 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1552 (s16)out_obj->package.elements[2].integer.value);
1553 input_sync(acer_wmi_accel_dev);
1554 return 0;
1555 }
1556
1557 /*
1558 * Rfkill devices
1559 */
1560 static void acer_rfkill_update(struct work_struct *ignored);
1561 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1562 static void acer_rfkill_update(struct work_struct *ignored)
1563 {
1564 u32 state;
1565 acpi_status status;
1566
1567 if (has_cap(ACER_CAP_WIRELESS)) {
1568 status = get_u32(&state, ACER_CAP_WIRELESS);
1569 if (ACPI_SUCCESS(status)) {
1570 if (quirks->wireless == 3)
1571 rfkill_set_hw_state(wireless_rfkill, !state);
1572 else
1573 rfkill_set_sw_state(wireless_rfkill, !state);
1574 }
1575 }
1576
1577 if (has_cap(ACER_CAP_BLUETOOTH)) {
1578 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1579 if (ACPI_SUCCESS(status))
1580 rfkill_set_sw_state(bluetooth_rfkill, !state);
1581 }
1582
1583 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1584 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1585 if (ACPI_SUCCESS(status))
1586 rfkill_set_sw_state(threeg_rfkill, !state);
1587 }
1588
1589 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1590 }
1591
1592 static int acer_rfkill_set(void *data, bool blocked)
1593 {
1594 acpi_status status;
1595 u32 cap = (unsigned long)data;
1596
1597 if (rfkill_inited) {
1598 status = set_u32(!blocked, cap);
1599 if (ACPI_FAILURE(status))
1600 return -ENODEV;
1601 }
1602
1603 return 0;
1604 }
1605
1606 static const struct rfkill_ops acer_rfkill_ops = {
1607 .set_block = acer_rfkill_set,
1608 };
1609
1610 static struct rfkill *acer_rfkill_register(struct device *dev,
1611 enum rfkill_type type,
1612 char *name, u32 cap)
1613 {
1614 int err;
1615 struct rfkill *rfkill_dev;
1616 u32 state;
1617 acpi_status status;
1618
1619 rfkill_dev = rfkill_alloc(name, dev, type,
1620 &acer_rfkill_ops,
1621 (void *)(unsigned long)cap);
1622 if (!rfkill_dev)
1623 return ERR_PTR(-ENOMEM);
1624
1625 status = get_u32(&state, cap);
1626
1627 err = rfkill_register(rfkill_dev);
1628 if (err) {
1629 rfkill_destroy(rfkill_dev);
1630 return ERR_PTR(err);
1631 }
1632
1633 if (ACPI_SUCCESS(status))
1634 rfkill_set_sw_state(rfkill_dev, !state);
1635
1636 return rfkill_dev;
1637 }
1638
1639 static int acer_rfkill_init(struct device *dev)
1640 {
1641 int err;
1642
1643 if (has_cap(ACER_CAP_WIRELESS)) {
1644 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1645 "acer-wireless", ACER_CAP_WIRELESS);
1646 if (IS_ERR(wireless_rfkill)) {
1647 err = PTR_ERR(wireless_rfkill);
1648 goto error_wireless;
1649 }
1650 }
1651
1652 if (has_cap(ACER_CAP_BLUETOOTH)) {
1653 bluetooth_rfkill = acer_rfkill_register(dev,
1654 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1655 ACER_CAP_BLUETOOTH);
1656 if (IS_ERR(bluetooth_rfkill)) {
1657 err = PTR_ERR(bluetooth_rfkill);
1658 goto error_bluetooth;
1659 }
1660 }
1661
1662 if (has_cap(ACER_CAP_THREEG)) {
1663 threeg_rfkill = acer_rfkill_register(dev,
1664 RFKILL_TYPE_WWAN, "acer-threeg",
1665 ACER_CAP_THREEG);
1666 if (IS_ERR(threeg_rfkill)) {
1667 err = PTR_ERR(threeg_rfkill);
1668 goto error_threeg;
1669 }
1670 }
1671
1672 rfkill_inited = true;
1673
1674 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1675 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1676 schedule_delayed_work(&acer_rfkill_work,
1677 round_jiffies_relative(HZ));
1678
1679 return 0;
1680
1681 error_threeg:
1682 if (has_cap(ACER_CAP_BLUETOOTH)) {
1683 rfkill_unregister(bluetooth_rfkill);
1684 rfkill_destroy(bluetooth_rfkill);
1685 }
1686 error_bluetooth:
1687 if (has_cap(ACER_CAP_WIRELESS)) {
1688 rfkill_unregister(wireless_rfkill);
1689 rfkill_destroy(wireless_rfkill);
1690 }
1691 error_wireless:
1692 return err;
1693 }
1694
1695 static void acer_rfkill_exit(void)
1696 {
1697 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1698 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1699 cancel_delayed_work_sync(&acer_rfkill_work);
1700
1701 if (has_cap(ACER_CAP_WIRELESS)) {
1702 rfkill_unregister(wireless_rfkill);
1703 rfkill_destroy(wireless_rfkill);
1704 }
1705
1706 if (has_cap(ACER_CAP_BLUETOOTH)) {
1707 rfkill_unregister(bluetooth_rfkill);
1708 rfkill_destroy(bluetooth_rfkill);
1709 }
1710
1711 if (has_cap(ACER_CAP_THREEG)) {
1712 rfkill_unregister(threeg_rfkill);
1713 rfkill_destroy(threeg_rfkill);
1714 }
1715 return;
1716 }
1717
1718 static void acer_wmi_notify(u32 value, void *context)
1719 {
1720 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1721 union acpi_object *obj;
1722 struct event_return_value return_value;
1723 acpi_status status;
1724 u16 device_state;
1725 const struct key_entry *key;
1726 u32 scancode;
1727
1728 status = wmi_get_event_data(value, &response);
1729 if (status != AE_OK) {
1730 pr_warn("bad event status 0x%x\n", status);
1731 return;
1732 }
1733
1734 obj = (union acpi_object *)response.pointer;
1735
1736 if (!obj)
1737 return;
1738 if (obj->type != ACPI_TYPE_BUFFER) {
1739 pr_warn("Unknown response received %d\n", obj->type);
1740 kfree(obj);
1741 return;
1742 }
1743 if (obj->buffer.length != 8) {
1744 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1745 kfree(obj);
1746 return;
1747 }
1748
1749 return_value = *((struct event_return_value *)obj->buffer.pointer);
1750 kfree(obj);
1751
1752 switch (return_value.function) {
1753 case WMID_HOTKEY_EVENT:
1754 device_state = return_value.device_state;
1755 pr_debug("device state: 0x%x\n", device_state);
1756
1757 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1758 return_value.key_num);
1759 if (!key) {
1760 pr_warn("Unknown key number - 0x%x\n",
1761 return_value.key_num);
1762 } else {
1763 scancode = return_value.key_num;
1764 switch (key->keycode) {
1765 case KEY_WLAN:
1766 case KEY_BLUETOOTH:
1767 if (has_cap(ACER_CAP_WIRELESS))
1768 rfkill_set_sw_state(wireless_rfkill,
1769 !(device_state & ACER_WMID3_GDS_WIRELESS));
1770 if (has_cap(ACER_CAP_THREEG))
1771 rfkill_set_sw_state(threeg_rfkill,
1772 !(device_state & ACER_WMID3_GDS_THREEG));
1773 if (has_cap(ACER_CAP_BLUETOOTH))
1774 rfkill_set_sw_state(bluetooth_rfkill,
1775 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1776 break;
1777 case KEY_TOUCHPAD_TOGGLE:
1778 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1779 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1780 }
1781 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1782 }
1783 break;
1784 case WMID_ACCEL_EVENT:
1785 acer_gsensor_event();
1786 break;
1787 default:
1788 pr_warn("Unknown function number - %d - %d\n",
1789 return_value.function, return_value.key_num);
1790 break;
1791 }
1792 }
1793
1794 static acpi_status __init
1795 wmid3_set_function_mode(struct func_input_params *params,
1796 struct func_return_value *return_value)
1797 {
1798 acpi_status status;
1799 union acpi_object *obj;
1800
1801 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1802 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1803
1804 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1805 if (ACPI_FAILURE(status))
1806 return status;
1807
1808 obj = output.pointer;
1809
1810 if (!obj)
1811 return AE_ERROR;
1812 else if (obj->type != ACPI_TYPE_BUFFER) {
1813 kfree(obj);
1814 return AE_ERROR;
1815 }
1816 if (obj->buffer.length != 4) {
1817 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1818 kfree(obj);
1819 return AE_ERROR;
1820 }
1821
1822 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1823 kfree(obj);
1824
1825 return status;
1826 }
1827
1828 static int __init acer_wmi_enable_ec_raw(void)
1829 {
1830 struct func_return_value return_value;
1831 acpi_status status;
1832 struct func_input_params params = {
1833 .function_num = 0x1,
1834 .commun_devices = 0xFFFF,
1835 .devices = 0xFFFF,
1836 .app_status = 0x00, /* Launch Manager Deactive */
1837 .app_mask = 0x01,
1838 };
1839
1840 status = wmid3_set_function_mode(&params, &return_value);
1841
1842 if (return_value.error_code || return_value.ec_return_value)
1843 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1844 return_value.error_code,
1845 return_value.ec_return_value);
1846 else
1847 pr_info("Enabled EC raw mode\n");
1848
1849 return status;
1850 }
1851
1852 static int __init acer_wmi_enable_lm(void)
1853 {
1854 struct func_return_value return_value;
1855 acpi_status status;
1856 struct func_input_params params = {
1857 .function_num = 0x1,
1858 .commun_devices = 0xFFFF,
1859 .devices = 0xFFFF,
1860 .app_status = 0x01, /* Launch Manager Active */
1861 .app_mask = 0x01,
1862 };
1863
1864 status = wmid3_set_function_mode(&params, &return_value);
1865
1866 if (return_value.error_code || return_value.ec_return_value)
1867 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1868 return_value.error_code,
1869 return_value.ec_return_value);
1870
1871 return status;
1872 }
1873
1874 static int __init acer_wmi_enable_rf_button(void)
1875 {
1876 struct func_return_value return_value;
1877 acpi_status status;
1878 struct func_input_params params = {
1879 .function_num = 0x1,
1880 .commun_devices = 0xFFFF,
1881 .devices = 0xFFFF,
1882 .app_status = 0x10, /* RF Button Active */
1883 .app_mask = 0x10,
1884 };
1885
1886 status = wmid3_set_function_mode(&params, &return_value);
1887
1888 if (return_value.error_code || return_value.ec_return_value)
1889 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1890 return_value.error_code,
1891 return_value.ec_return_value);
1892
1893 return status;
1894 }
1895
1896 #define ACER_WMID_ACCEL_HID "BST0001"
1897
1898 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1899 void *ctx, void **retval)
1900 {
1901 struct acpi_device *dev;
1902
1903 if (!strcmp(ctx, "SENR")) {
1904 if (acpi_bus_get_device(ah, &dev))
1905 return AE_OK;
1906 if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
1907 return AE_OK;
1908 } else
1909 return AE_OK;
1910
1911 *(acpi_handle *)retval = ah;
1912
1913 return AE_CTRL_TERMINATE;
1914 }
1915
1916 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1917 acpi_handle *ah)
1918 {
1919 acpi_status status;
1920 acpi_handle handle;
1921
1922 BUG_ON(!name || !ah);
1923
1924 handle = NULL;
1925 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1926 (void *)name, &handle);
1927 if (ACPI_SUCCESS(status) && handle) {
1928 *ah = handle;
1929 return 0;
1930 } else {
1931 return -ENODEV;
1932 }
1933 }
1934
1935 static int __init acer_wmi_accel_setup(void)
1936 {
1937 int err;
1938
1939 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
1940 if (err)
1941 return err;
1942
1943 interface->capability |= ACER_CAP_ACCEL;
1944
1945 acer_wmi_accel_dev = input_allocate_device();
1946 if (!acer_wmi_accel_dev)
1947 return -ENOMEM;
1948
1949 acer_wmi_accel_dev->open = acer_gsensor_open;
1950
1951 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1952 acer_wmi_accel_dev->phys = "wmi/input1";
1953 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1954 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1955 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1956 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1957 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1958
1959 err = input_register_device(acer_wmi_accel_dev);
1960 if (err)
1961 goto err_free_dev;
1962
1963 return 0;
1964
1965 err_free_dev:
1966 input_free_device(acer_wmi_accel_dev);
1967 return err;
1968 }
1969
1970 static void acer_wmi_accel_destroy(void)
1971 {
1972 input_unregister_device(acer_wmi_accel_dev);
1973 }
1974
1975 static int __init acer_wmi_input_setup(void)
1976 {
1977 acpi_status status;
1978 int err;
1979
1980 acer_wmi_input_dev = input_allocate_device();
1981 if (!acer_wmi_input_dev)
1982 return -ENOMEM;
1983
1984 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1985 acer_wmi_input_dev->phys = "wmi/input0";
1986 acer_wmi_input_dev->id.bustype = BUS_HOST;
1987
1988 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1989 if (err)
1990 goto err_free_dev;
1991
1992 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1993 acer_wmi_notify, NULL);
1994 if (ACPI_FAILURE(status)) {
1995 err = -EIO;
1996 goto err_free_dev;
1997 }
1998
1999 err = input_register_device(acer_wmi_input_dev);
2000 if (err)
2001 goto err_uninstall_notifier;
2002
2003 return 0;
2004
2005 err_uninstall_notifier:
2006 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2007 err_free_dev:
2008 input_free_device(acer_wmi_input_dev);
2009 return err;
2010 }
2011
2012 static void acer_wmi_input_destroy(void)
2013 {
2014 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2015 input_unregister_device(acer_wmi_input_dev);
2016 }
2017
2018 /*
2019 * debugfs functions
2020 */
2021 static u32 get_wmid_devices(void)
2022 {
2023 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2024 union acpi_object *obj;
2025 acpi_status status;
2026 u32 devices = 0;
2027
2028 status = wmi_query_block(WMID_GUID2, 0, &out);
2029 if (ACPI_FAILURE(status))
2030 return 0;
2031
2032 obj = (union acpi_object *) out.pointer;
2033 if (obj) {
2034 if (obj->type == ACPI_TYPE_BUFFER &&
2035 (obj->buffer.length == sizeof(u32) ||
2036 obj->buffer.length == sizeof(u64))) {
2037 devices = *((u32 *) obj->buffer.pointer);
2038 } else if (obj->type == ACPI_TYPE_INTEGER) {
2039 devices = (u32) obj->integer.value;
2040 }
2041 }
2042
2043 kfree(out.pointer);
2044 return devices;
2045 }
2046
2047 /*
2048 * Platform device
2049 */
2050 static int acer_platform_probe(struct platform_device *device)
2051 {
2052 int err;
2053
2054 if (has_cap(ACER_CAP_MAILLED)) {
2055 err = acer_led_init(&device->dev);
2056 if (err)
2057 goto error_mailled;
2058 }
2059
2060 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2061 err = acer_backlight_init(&device->dev);
2062 if (err)
2063 goto error_brightness;
2064 }
2065
2066 err = acer_rfkill_init(&device->dev);
2067 if (err)
2068 goto error_rfkill;
2069
2070 return err;
2071
2072 error_rfkill:
2073 if (has_cap(ACER_CAP_BRIGHTNESS))
2074 acer_backlight_exit();
2075 error_brightness:
2076 if (has_cap(ACER_CAP_MAILLED))
2077 acer_led_exit();
2078 error_mailled:
2079 return err;
2080 }
2081
2082 static int acer_platform_remove(struct platform_device *device)
2083 {
2084 if (has_cap(ACER_CAP_MAILLED))
2085 acer_led_exit();
2086 if (has_cap(ACER_CAP_BRIGHTNESS))
2087 acer_backlight_exit();
2088
2089 acer_rfkill_exit();
2090 return 0;
2091 }
2092
2093 #ifdef CONFIG_PM_SLEEP
2094 static int acer_suspend(struct device *dev)
2095 {
2096 u32 value;
2097 struct acer_data *data = &interface->data;
2098
2099 if (!data)
2100 return -ENOMEM;
2101
2102 if (has_cap(ACER_CAP_MAILLED)) {
2103 get_u32(&value, ACER_CAP_MAILLED);
2104 set_u32(LED_OFF, ACER_CAP_MAILLED);
2105 data->mailled = value;
2106 }
2107
2108 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2109 get_u32(&value, ACER_CAP_BRIGHTNESS);
2110 data->brightness = value;
2111 }
2112
2113 return 0;
2114 }
2115
2116 static int acer_resume(struct device *dev)
2117 {
2118 struct acer_data *data = &interface->data;
2119
2120 if (!data)
2121 return -ENOMEM;
2122
2123 if (has_cap(ACER_CAP_MAILLED))
2124 set_u32(data->mailled, ACER_CAP_MAILLED);
2125
2126 if (has_cap(ACER_CAP_BRIGHTNESS))
2127 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2128
2129 if (has_cap(ACER_CAP_ACCEL))
2130 acer_gsensor_init();
2131
2132 return 0;
2133 }
2134 #else
2135 #define acer_suspend NULL
2136 #define acer_resume NULL
2137 #endif
2138
2139 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2140
2141 static void acer_platform_shutdown(struct platform_device *device)
2142 {
2143 struct acer_data *data = &interface->data;
2144
2145 if (!data)
2146 return;
2147
2148 if (has_cap(ACER_CAP_MAILLED))
2149 set_u32(LED_OFF, ACER_CAP_MAILLED);
2150 }
2151
2152 static struct platform_driver acer_platform_driver = {
2153 .driver = {
2154 .name = "acer-wmi",
2155 .pm = &acer_pm,
2156 },
2157 .probe = acer_platform_probe,
2158 .remove = acer_platform_remove,
2159 .shutdown = acer_platform_shutdown,
2160 };
2161
2162 static struct platform_device *acer_platform_device;
2163
2164 static void remove_debugfs(void)
2165 {
2166 debugfs_remove(interface->debug.devices);
2167 debugfs_remove(interface->debug.root);
2168 }
2169
2170 static int __init create_debugfs(void)
2171 {
2172 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2173 if (!interface->debug.root) {
2174 pr_err("Failed to create debugfs directory");
2175 return -ENOMEM;
2176 }
2177
2178 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2179 interface->debug.root,
2180 &interface->debug.wmid_devices);
2181 if (!interface->debug.devices)
2182 goto error_debugfs;
2183
2184 return 0;
2185
2186 error_debugfs:
2187 remove_debugfs();
2188 return -ENOMEM;
2189 }
2190
2191 static int __init acer_wmi_init(void)
2192 {
2193 int err;
2194
2195 pr_info("Acer Laptop ACPI-WMI Extras\n");
2196
2197 if (dmi_check_system(acer_blacklist)) {
2198 pr_info("Blacklisted hardware detected - not loading\n");
2199 return -ENODEV;
2200 }
2201
2202 find_quirks();
2203
2204 /*
2205 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2206 * machines like Lenovo, Fujitsu and Medion. In the past days,
2207 * acer-wmi driver handled those non-Acer machines by quirks list.
2208 * But actually acer-wmi driver was loaded on any machines that have
2209 * AMW0_GUID1. This behavior is strange because those machines should
2210 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2211 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2212 * should be in Acer/Gateway/Packard Bell white list, or it's already
2213 * in the past quirk list.
2214 */
2215 if (wmi_has_guid(AMW0_GUID1) &&
2216 !dmi_check_system(amw0_whitelist) &&
2217 quirks == &quirk_unknown) {
2218 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
2219 return -ENODEV;
2220 }
2221
2222 /*
2223 * Detect which ACPI-WMI interface we're using.
2224 */
2225 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2226 interface = &AMW0_V2_interface;
2227
2228 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2229 interface = &wmid_interface;
2230
2231 if (wmi_has_guid(WMID_GUID3))
2232 interface = &wmid_v2_interface;
2233
2234 if (interface)
2235 dmi_walk(type_aa_dmi_decode, NULL);
2236
2237 if (wmi_has_guid(WMID_GUID2) && interface) {
2238 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2239 pr_err("Unable to detect available WMID devices\n");
2240 return -ENODEV;
2241 }
2242 /* WMID always provides brightness methods */
2243 interface->capability |= ACER_CAP_BRIGHTNESS;
2244 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2245 pr_err("No WMID device detection method found\n");
2246 return -ENODEV;
2247 }
2248
2249 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2250 interface = &AMW0_interface;
2251
2252 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2253 pr_err("Unable to detect available AMW0 devices\n");
2254 return -ENODEV;
2255 }
2256 }
2257
2258 if (wmi_has_guid(AMW0_GUID1))
2259 AMW0_find_mailled();
2260
2261 if (!interface) {
2262 pr_err("No or unsupported WMI interface, unable to load\n");
2263 return -ENODEV;
2264 }
2265
2266 set_quirks();
2267
2268 if (dmi_check_system(video_vendor_dmi_table))
2269 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2270
2271 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2272 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2273
2274 if (wmi_has_guid(WMID_GUID3)) {
2275 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2276 pr_warn("Cannot enable RF Button Driver\n");
2277
2278 if (ec_raw_mode) {
2279 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2280 pr_err("Cannot enable EC raw mode\n");
2281 return -ENODEV;
2282 }
2283 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2284 pr_err("Cannot enable Launch Manager mode\n");
2285 return -ENODEV;
2286 }
2287 } else if (ec_raw_mode) {
2288 pr_info("No WMID EC raw mode enable method\n");
2289 }
2290
2291 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2292 err = acer_wmi_input_setup();
2293 if (err)
2294 return err;
2295 err = acer_wmi_accel_setup();
2296 if (err && err != -ENODEV)
2297 pr_warn("Cannot enable accelerometer\n");
2298 }
2299
2300 err = platform_driver_register(&acer_platform_driver);
2301 if (err) {
2302 pr_err("Unable to register platform driver\n");
2303 goto error_platform_register;
2304 }
2305
2306 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2307 if (!acer_platform_device) {
2308 err = -ENOMEM;
2309 goto error_device_alloc;
2310 }
2311
2312 err = platform_device_add(acer_platform_device);
2313 if (err)
2314 goto error_device_add;
2315
2316 if (wmi_has_guid(WMID_GUID2)) {
2317 interface->debug.wmid_devices = get_wmid_devices();
2318 err = create_debugfs();
2319 if (err)
2320 goto error_create_debugfs;
2321 }
2322
2323 /* Override any initial settings with values from the commandline */
2324 acer_commandline_init();
2325
2326 return 0;
2327
2328 error_create_debugfs:
2329 platform_device_del(acer_platform_device);
2330 error_device_add:
2331 platform_device_put(acer_platform_device);
2332 error_device_alloc:
2333 platform_driver_unregister(&acer_platform_driver);
2334 error_platform_register:
2335 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2336 acer_wmi_input_destroy();
2337 if (has_cap(ACER_CAP_ACCEL))
2338 acer_wmi_accel_destroy();
2339
2340 return err;
2341 }
2342
2343 static void __exit acer_wmi_exit(void)
2344 {
2345 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2346 acer_wmi_input_destroy();
2347
2348 if (has_cap(ACER_CAP_ACCEL))
2349 acer_wmi_accel_destroy();
2350
2351 remove_debugfs();
2352 platform_device_unregister(acer_platform_device);
2353 platform_driver_unregister(&acer_platform_driver);
2354
2355 pr_info("Acer Laptop WMI Extras unloaded\n");
2356 return;
2357 }
2358
2359 module_init(acer_wmi_init);
2360 module_exit(acer_wmi_exit);
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