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UBUNTU: Ubuntu-4.13.0-45.50
[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_KEY, 0x87, {KEY_POWER} },
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_RFBTN (1<<14) /* RF Button */
154
155 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
156
157 /* Hotkey Customized Setting and Acer Application Status.
158 * Set Device Default Value and Report Acer Application Status.
159 * When Acer Application starts, it will run this method to inform
160 * BIOS/EC that Acer Application is on.
161 * App Status
162 * Bit[0]: Launch Manager Status
163 * Bit[1]: ePM Status
164 * Bit[2]: Device Control Status
165 * Bit[3]: Acer Power Button Utility Status
166 * Bit[4]: RF Button Status
167 * Bit[5]: ODD PM Status
168 * Bit[6]: Device Default Value Control
169 * Bit[7]: Hall Sensor Application Status
170 */
171 struct func_input_params {
172 u8 function_num; /* Function Number */
173 u16 commun_devices; /* Communication type devices default status */
174 u16 devices; /* Other type devices default status */
175 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
176 u8 app_mask; /* Bit mask to app_status */
177 u8 reserved;
178 } __attribute__((packed));
179
180 struct func_return_value {
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 reserved;
184 } __attribute__((packed));
185
186 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
187 u8 function_num; /* Function Number */
188 u8 hotkey_number; /* Hotkey Number */
189 u16 devices; /* Set Device */
190 u8 volume_value; /* Volume Value */
191 } __attribute__((packed));
192
193 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
194 u8 function_num; /* Function Number */
195 u8 hotkey_number; /* Hotkey Number */
196 u16 devices; /* Get Device */
197 } __attribute__((packed));
198
199 struct wmid3_gds_return_value { /* Get Device Status return value*/
200 u8 error_code; /* Error Code */
201 u8 ec_return_value; /* EC Return Value */
202 u16 devices; /* Current Device Status */
203 u32 reserved;
204 } __attribute__((packed));
205
206 struct hotkey_function_type_aa {
207 u8 type;
208 u8 length;
209 u16 handle;
210 u16 commun_func_bitmap;
211 u16 application_func_bitmap;
212 u16 media_func_bitmap;
213 u16 display_func_bitmap;
214 u16 others_func_bitmap;
215 u8 commun_fn_key_number;
216 } __attribute__((packed));
217
218 /*
219 * Interface capability flags
220 */
221 #define ACER_CAP_MAILLED (1<<0)
222 #define ACER_CAP_WIRELESS (1<<1)
223 #define ACER_CAP_BLUETOOTH (1<<2)
224 #define ACER_CAP_BRIGHTNESS (1<<3)
225 #define ACER_CAP_THREEG (1<<4)
226 #define ACER_CAP_ACCEL (1<<5)
227 #define ACER_CAP_RFBTN (1<<6)
228 #define ACER_CAP_ANY (0xFFFFFFFF)
229
230 /*
231 * Interface type flags
232 */
233 enum interface_flags {
234 ACER_AMW0,
235 ACER_AMW0_V2,
236 ACER_WMID,
237 ACER_WMID_v2,
238 };
239
240 #define ACER_DEFAULT_WIRELESS 0
241 #define ACER_DEFAULT_BLUETOOTH 0
242 #define ACER_DEFAULT_MAILLED 0
243 #define ACER_DEFAULT_THREEG 0
244
245 static int max_brightness = 0xF;
246
247 static int mailled = -1;
248 static int brightness = -1;
249 static int threeg = -1;
250 static int force_series;
251 static bool ec_raw_mode;
252 static bool has_type_aa;
253 static u16 commun_func_bitmap;
254 static u8 commun_fn_key_number;
255
256 module_param(mailled, int, 0444);
257 module_param(brightness, int, 0444);
258 module_param(threeg, int, 0444);
259 module_param(force_series, int, 0444);
260 module_param(ec_raw_mode, bool, 0444);
261 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
262 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
263 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
264 MODULE_PARM_DESC(force_series, "Force a different laptop series");
265 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
266
267 struct acer_data {
268 int mailled;
269 int threeg;
270 int brightness;
271 };
272
273 struct acer_debug {
274 struct dentry *root;
275 struct dentry *devices;
276 u32 wmid_devices;
277 };
278
279 static struct rfkill *wireless_rfkill;
280 static struct rfkill *bluetooth_rfkill;
281 static struct rfkill *threeg_rfkill;
282 static bool rfkill_inited;
283
284 /* Each low-level interface must define at least some of the following */
285 struct wmi_interface {
286 /* The WMI device type */
287 u32 type;
288
289 /* The capabilities this interface provides */
290 u32 capability;
291
292 /* Private data for the current interface */
293 struct acer_data data;
294
295 /* debugfs entries associated with this interface */
296 struct acer_debug debug;
297 };
298
299 /* The static interface pointer, points to the currently detected interface */
300 static struct wmi_interface *interface;
301
302 /*
303 * Embedded Controller quirks
304 * Some laptops require us to directly access the EC to either enable or query
305 * features that are not available through WMI.
306 */
307
308 struct quirk_entry {
309 u8 wireless;
310 u8 mailled;
311 s8 brightness;
312 u8 bluetooth;
313 };
314
315 static struct quirk_entry *quirks;
316
317 static void __init set_quirks(void)
318 {
319 if (!interface)
320 return;
321
322 if (quirks->mailled)
323 interface->capability |= ACER_CAP_MAILLED;
324
325 if (quirks->brightness)
326 interface->capability |= ACER_CAP_BRIGHTNESS;
327 }
328
329 static int __init dmi_matched(const struct dmi_system_id *dmi)
330 {
331 quirks = dmi->driver_data;
332 return 1;
333 }
334
335 static struct quirk_entry quirk_unknown = {
336 };
337
338 static struct quirk_entry quirk_acer_aspire_1520 = {
339 .brightness = -1,
340 };
341
342 static struct quirk_entry quirk_acer_travelmate_2490 = {
343 .mailled = 1,
344 };
345
346 /* This AMW0 laptop has no bluetooth */
347 static struct quirk_entry quirk_medion_md_98300 = {
348 .wireless = 1,
349 };
350
351 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
352 .wireless = 2,
353 };
354
355 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
356 .wireless = 3,
357 };
358
359 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
360 static const struct dmi_system_id acer_blacklist[] __initconst = {
361 {
362 .ident = "Acer Aspire One (SSD)",
363 .matches = {
364 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
365 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
366 },
367 },
368 {
369 .ident = "Acer Aspire One (HDD)",
370 .matches = {
371 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
372 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
373 },
374 },
375 {}
376 };
377
378 static const struct dmi_system_id amw0_whitelist[] __initconst = {
379 {
380 .ident = "Acer",
381 .matches = {
382 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
383 },
384 },
385 {
386 .ident = "Gateway",
387 .matches = {
388 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
389 },
390 },
391 {
392 .ident = "Packard Bell",
393 .matches = {
394 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
395 },
396 },
397 {}
398 };
399
400 /*
401 * This quirk table is only for Acer/Gateway/Packard Bell family
402 * that those machines are supported by acer-wmi driver.
403 */
404 static const struct dmi_system_id acer_quirks[] __initconst = {
405 {
406 .callback = dmi_matched,
407 .ident = "Acer Aspire 1360",
408 .matches = {
409 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
410 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
411 },
412 .driver_data = &quirk_acer_aspire_1520,
413 },
414 {
415 .callback = dmi_matched,
416 .ident = "Acer Aspire 1520",
417 .matches = {
418 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
419 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
420 },
421 .driver_data = &quirk_acer_aspire_1520,
422 },
423 {
424 .callback = dmi_matched,
425 .ident = "Acer Aspire 3100",
426 .matches = {
427 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
428 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
429 },
430 .driver_data = &quirk_acer_travelmate_2490,
431 },
432 {
433 .callback = dmi_matched,
434 .ident = "Acer Aspire 3610",
435 .matches = {
436 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
437 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
438 },
439 .driver_data = &quirk_acer_travelmate_2490,
440 },
441 {
442 .callback = dmi_matched,
443 .ident = "Acer Aspire 5100",
444 .matches = {
445 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
446 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
447 },
448 .driver_data = &quirk_acer_travelmate_2490,
449 },
450 {
451 .callback = dmi_matched,
452 .ident = "Acer Aspire 5610",
453 .matches = {
454 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
455 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
456 },
457 .driver_data = &quirk_acer_travelmate_2490,
458 },
459 {
460 .callback = dmi_matched,
461 .ident = "Acer Aspire 5630",
462 .matches = {
463 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
464 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
465 },
466 .driver_data = &quirk_acer_travelmate_2490,
467 },
468 {
469 .callback = dmi_matched,
470 .ident = "Acer Aspire 5650",
471 .matches = {
472 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
473 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
474 },
475 .driver_data = &quirk_acer_travelmate_2490,
476 },
477 {
478 .callback = dmi_matched,
479 .ident = "Acer Aspire 5680",
480 .matches = {
481 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
482 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
483 },
484 .driver_data = &quirk_acer_travelmate_2490,
485 },
486 {
487 .callback = dmi_matched,
488 .ident = "Acer Aspire 9110",
489 .matches = {
490 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
491 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
492 },
493 .driver_data = &quirk_acer_travelmate_2490,
494 },
495 {
496 .callback = dmi_matched,
497 .ident = "Acer TravelMate 2490",
498 .matches = {
499 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
500 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
501 },
502 .driver_data = &quirk_acer_travelmate_2490,
503 },
504 {
505 .callback = dmi_matched,
506 .ident = "Acer TravelMate 4200",
507 .matches = {
508 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
509 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
510 },
511 .driver_data = &quirk_acer_travelmate_2490,
512 },
513 {}
514 };
515
516 /*
517 * This quirk list is for those non-acer machines that have AMW0_GUID1
518 * but supported by acer-wmi in past days. Keeping this quirk list here
519 * is only for backward compatible. Please do not add new machine to
520 * here anymore. Those non-acer machines should be supported by
521 * appropriate wmi drivers.
522 */
523 static const struct dmi_system_id non_acer_quirks[] __initconst = {
524 {
525 .callback = dmi_matched,
526 .ident = "Fujitsu Siemens Amilo Li 1718",
527 .matches = {
528 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
529 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
530 },
531 .driver_data = &quirk_fujitsu_amilo_li_1718,
532 },
533 {
534 .callback = dmi_matched,
535 .ident = "Medion MD 98300",
536 .matches = {
537 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
538 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
539 },
540 .driver_data = &quirk_medion_md_98300,
541 },
542 {
543 .callback = dmi_matched,
544 .ident = "Lenovo Ideapad S205",
545 .matches = {
546 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
548 },
549 .driver_data = &quirk_lenovo_ideapad_s205,
550 },
551 {
552 .callback = dmi_matched,
553 .ident = "Lenovo Ideapad S205 (Brazos)",
554 .matches = {
555 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
556 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
557 },
558 .driver_data = &quirk_lenovo_ideapad_s205,
559 },
560 {
561 .callback = dmi_matched,
562 .ident = "Lenovo 3000 N200",
563 .matches = {
564 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
565 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
566 },
567 .driver_data = &quirk_fujitsu_amilo_li_1718,
568 },
569 {
570 .callback = dmi_matched,
571 .ident = "Lenovo Ideapad S205-10382JG",
572 .matches = {
573 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
574 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
575 },
576 .driver_data = &quirk_lenovo_ideapad_s205,
577 },
578 {
579 .callback = dmi_matched,
580 .ident = "Lenovo Ideapad S205-1038DPG",
581 .matches = {
582 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
583 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
584 },
585 .driver_data = &quirk_lenovo_ideapad_s205,
586 },
587 {}
588 };
589
590 static int __init
591 video_set_backlight_video_vendor(const struct dmi_system_id *d)
592 {
593 interface->capability &= ~ACER_CAP_BRIGHTNESS;
594 pr_info("Brightness must be controlled by generic video driver\n");
595 return 0;
596 }
597
598 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
599 {
600 .callback = video_set_backlight_video_vendor,
601 .ident = "Acer TravelMate 4750",
602 .matches = {
603 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
604 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
605 },
606 },
607 {
608 .callback = video_set_backlight_video_vendor,
609 .ident = "Acer Extensa 5235",
610 .matches = {
611 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
612 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
613 },
614 },
615 {
616 .callback = video_set_backlight_video_vendor,
617 .ident = "Acer TravelMate 5760",
618 .matches = {
619 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
620 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
621 },
622 },
623 {
624 .callback = video_set_backlight_video_vendor,
625 .ident = "Acer Aspire 5750",
626 .matches = {
627 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
628 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
629 },
630 },
631 {
632 .callback = video_set_backlight_video_vendor,
633 .ident = "Acer Aspire 5741",
634 .matches = {
635 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
636 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
637 },
638 },
639 {
640 /*
641 * Note no video_set_backlight_video_vendor, we must use the
642 * acer interface, as there is no native backlight interface.
643 */
644 .ident = "Acer KAV80",
645 .matches = {
646 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
647 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
648 },
649 },
650 {}
651 };
652
653 /* Find which quirks are needed for a particular vendor/ model pair */
654 static void __init find_quirks(void)
655 {
656 if (!force_series) {
657 dmi_check_system(acer_quirks);
658 dmi_check_system(non_acer_quirks);
659 } else if (force_series == 2490) {
660 quirks = &quirk_acer_travelmate_2490;
661 }
662
663 if (quirks == NULL)
664 quirks = &quirk_unknown;
665
666 set_quirks();
667 }
668
669 /*
670 * General interface convenience methods
671 */
672
673 static bool has_cap(u32 cap)
674 {
675 if ((interface->capability & cap) != 0)
676 return 1;
677
678 return 0;
679 }
680
681 /*
682 * AMW0 (V1) interface
683 */
684 struct wmab_args {
685 u32 eax;
686 u32 ebx;
687 u32 ecx;
688 u32 edx;
689 };
690
691 struct wmab_ret {
692 u32 eax;
693 u32 ebx;
694 u32 ecx;
695 u32 edx;
696 u32 eex;
697 };
698
699 static acpi_status wmab_execute(struct wmab_args *regbuf,
700 struct acpi_buffer *result)
701 {
702 struct acpi_buffer input;
703 acpi_status status;
704 input.length = sizeof(struct wmab_args);
705 input.pointer = (u8 *)regbuf;
706
707 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
708
709 return status;
710 }
711
712 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
713 {
714 int err;
715 u8 result;
716
717 switch (cap) {
718 case ACER_CAP_MAILLED:
719 switch (quirks->mailled) {
720 default:
721 err = ec_read(0xA, &result);
722 if (err)
723 return AE_ERROR;
724 *value = (result >> 7) & 0x1;
725 return AE_OK;
726 }
727 break;
728 case ACER_CAP_WIRELESS:
729 switch (quirks->wireless) {
730 case 1:
731 err = ec_read(0x7B, &result);
732 if (err)
733 return AE_ERROR;
734 *value = result & 0x1;
735 return AE_OK;
736 case 2:
737 err = ec_read(0x71, &result);
738 if (err)
739 return AE_ERROR;
740 *value = result & 0x1;
741 return AE_OK;
742 case 3:
743 err = ec_read(0x78, &result);
744 if (err)
745 return AE_ERROR;
746 *value = result & 0x1;
747 return AE_OK;
748 default:
749 err = ec_read(0xA, &result);
750 if (err)
751 return AE_ERROR;
752 *value = (result >> 2) & 0x1;
753 return AE_OK;
754 }
755 break;
756 case ACER_CAP_BLUETOOTH:
757 switch (quirks->bluetooth) {
758 default:
759 err = ec_read(0xA, &result);
760 if (err)
761 return AE_ERROR;
762 *value = (result >> 4) & 0x1;
763 return AE_OK;
764 }
765 break;
766 case ACER_CAP_BRIGHTNESS:
767 switch (quirks->brightness) {
768 default:
769 err = ec_read(0x83, &result);
770 if (err)
771 return AE_ERROR;
772 *value = result;
773 return AE_OK;
774 }
775 break;
776 default:
777 return AE_ERROR;
778 }
779 return AE_OK;
780 }
781
782 static acpi_status AMW0_set_u32(u32 value, u32 cap)
783 {
784 struct wmab_args args;
785
786 args.eax = ACER_AMW0_WRITE;
787 args.ebx = value ? (1<<8) : 0;
788 args.ecx = args.edx = 0;
789
790 switch (cap) {
791 case ACER_CAP_MAILLED:
792 if (value > 1)
793 return AE_BAD_PARAMETER;
794 args.ebx |= ACER_AMW0_MAILLED_MASK;
795 break;
796 case ACER_CAP_WIRELESS:
797 if (value > 1)
798 return AE_BAD_PARAMETER;
799 args.ebx |= ACER_AMW0_WIRELESS_MASK;
800 break;
801 case ACER_CAP_BLUETOOTH:
802 if (value > 1)
803 return AE_BAD_PARAMETER;
804 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
805 break;
806 case ACER_CAP_BRIGHTNESS:
807 if (value > max_brightness)
808 return AE_BAD_PARAMETER;
809 switch (quirks->brightness) {
810 default:
811 return ec_write(0x83, value);
812 break;
813 }
814 default:
815 return AE_ERROR;
816 }
817
818 /* Actually do the set */
819 return wmab_execute(&args, NULL);
820 }
821
822 static acpi_status __init AMW0_find_mailled(void)
823 {
824 struct wmab_args args;
825 struct wmab_ret ret;
826 acpi_status status = AE_OK;
827 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
828 union acpi_object *obj;
829
830 args.eax = 0x86;
831 args.ebx = args.ecx = args.edx = 0;
832
833 status = wmab_execute(&args, &out);
834 if (ACPI_FAILURE(status))
835 return status;
836
837 obj = (union acpi_object *) out.pointer;
838 if (obj && obj->type == ACPI_TYPE_BUFFER &&
839 obj->buffer.length == sizeof(struct wmab_ret)) {
840 ret = *((struct wmab_ret *) obj->buffer.pointer);
841 } else {
842 kfree(out.pointer);
843 return AE_ERROR;
844 }
845
846 if (ret.eex & 0x1)
847 interface->capability |= ACER_CAP_MAILLED;
848
849 kfree(out.pointer);
850
851 return AE_OK;
852 }
853
854 static const struct acpi_device_id norfkill_ids[] __initconst = {
855 { "VPC2004", 0},
856 { "IBM0068", 0},
857 { "LEN0068", 0},
858 { "SNY5001", 0}, /* sony-laptop in charge */
859 { "HPQ6601", 0},
860 { "", 0},
861 };
862
863 static int __init AMW0_set_cap_acpi_check_device(void)
864 {
865 const struct acpi_device_id *id;
866
867 for (id = norfkill_ids; id->id[0]; id++)
868 if (acpi_dev_found(id->id))
869 return true;
870
871 return false;
872 }
873
874 static acpi_status __init AMW0_set_capabilities(void)
875 {
876 struct wmab_args args;
877 struct wmab_ret ret;
878 acpi_status status;
879 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
880 union acpi_object *obj;
881
882 /*
883 * On laptops with this strange GUID (non Acer), normal probing doesn't
884 * work.
885 */
886 if (wmi_has_guid(AMW0_GUID2)) {
887 if ((quirks != &quirk_unknown) ||
888 !AMW0_set_cap_acpi_check_device())
889 interface->capability |= ACER_CAP_WIRELESS;
890 return AE_OK;
891 }
892
893 args.eax = ACER_AMW0_WRITE;
894 args.ecx = args.edx = 0;
895
896 args.ebx = 0xa2 << 8;
897 args.ebx |= ACER_AMW0_WIRELESS_MASK;
898
899 status = wmab_execute(&args, &out);
900 if (ACPI_FAILURE(status))
901 return status;
902
903 obj = out.pointer;
904 if (obj && obj->type == ACPI_TYPE_BUFFER &&
905 obj->buffer.length == sizeof(struct wmab_ret)) {
906 ret = *((struct wmab_ret *) obj->buffer.pointer);
907 } else {
908 status = AE_ERROR;
909 goto out;
910 }
911
912 if (ret.eax & 0x1)
913 interface->capability |= ACER_CAP_WIRELESS;
914
915 args.ebx = 2 << 8;
916 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
917
918 /*
919 * It's ok to use existing buffer for next wmab_execute call.
920 * But we need to kfree(out.pointer) if next wmab_execute fail.
921 */
922 status = wmab_execute(&args, &out);
923 if (ACPI_FAILURE(status))
924 goto out;
925
926 obj = (union acpi_object *) out.pointer;
927 if (obj && obj->type == ACPI_TYPE_BUFFER
928 && obj->buffer.length == sizeof(struct wmab_ret)) {
929 ret = *((struct wmab_ret *) obj->buffer.pointer);
930 } else {
931 status = AE_ERROR;
932 goto out;
933 }
934
935 if (ret.eax & 0x1)
936 interface->capability |= ACER_CAP_BLUETOOTH;
937
938 /*
939 * This appears to be safe to enable, since all Wistron based laptops
940 * appear to use the same EC register for brightness, even if they
941 * differ for wireless, etc
942 */
943 if (quirks->brightness >= 0)
944 interface->capability |= ACER_CAP_BRIGHTNESS;
945
946 status = AE_OK;
947 out:
948 kfree(out.pointer);
949 return status;
950 }
951
952 static struct wmi_interface AMW0_interface = {
953 .type = ACER_AMW0,
954 };
955
956 static struct wmi_interface AMW0_V2_interface = {
957 .type = ACER_AMW0_V2,
958 };
959
960 /*
961 * New interface (The WMID interface)
962 */
963 static acpi_status
964 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
965 {
966 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
967 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
968 union acpi_object *obj;
969 u32 tmp = 0;
970 acpi_status status;
971
972 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
973
974 if (ACPI_FAILURE(status))
975 return status;
976
977 obj = (union acpi_object *) result.pointer;
978 if (obj) {
979 if (obj->type == ACPI_TYPE_BUFFER &&
980 (obj->buffer.length == sizeof(u32) ||
981 obj->buffer.length == sizeof(u64))) {
982 tmp = *((u32 *) obj->buffer.pointer);
983 } else if (obj->type == ACPI_TYPE_INTEGER) {
984 tmp = (u32) obj->integer.value;
985 }
986 }
987
988 if (out)
989 *out = tmp;
990
991 kfree(result.pointer);
992
993 return status;
994 }
995
996 static acpi_status WMID_get_u32(u32 *value, u32 cap)
997 {
998 acpi_status status;
999 u8 tmp;
1000 u32 result, method_id = 0;
1001
1002 switch (cap) {
1003 case ACER_CAP_WIRELESS:
1004 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1005 break;
1006 case ACER_CAP_BLUETOOTH:
1007 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1008 break;
1009 case ACER_CAP_BRIGHTNESS:
1010 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1011 break;
1012 case ACER_CAP_THREEG:
1013 method_id = ACER_WMID_GET_THREEG_METHODID;
1014 break;
1015 case ACER_CAP_MAILLED:
1016 if (quirks->mailled == 1) {
1017 ec_read(0x9f, &tmp);
1018 *value = tmp & 0x1;
1019 return 0;
1020 }
1021 default:
1022 return AE_ERROR;
1023 }
1024 status = WMI_execute_u32(method_id, 0, &result);
1025
1026 if (ACPI_SUCCESS(status))
1027 *value = (u8)result;
1028
1029 return status;
1030 }
1031
1032 static acpi_status WMID_set_u32(u32 value, u32 cap)
1033 {
1034 u32 method_id = 0;
1035 char param;
1036
1037 switch (cap) {
1038 case ACER_CAP_BRIGHTNESS:
1039 if (value > max_brightness)
1040 return AE_BAD_PARAMETER;
1041 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1042 break;
1043 case ACER_CAP_WIRELESS:
1044 if (value > 1)
1045 return AE_BAD_PARAMETER;
1046 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1047 break;
1048 case ACER_CAP_BLUETOOTH:
1049 if (value > 1)
1050 return AE_BAD_PARAMETER;
1051 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1052 break;
1053 case ACER_CAP_THREEG:
1054 if (value > 1)
1055 return AE_BAD_PARAMETER;
1056 method_id = ACER_WMID_SET_THREEG_METHODID;
1057 break;
1058 case ACER_CAP_MAILLED:
1059 if (value > 1)
1060 return AE_BAD_PARAMETER;
1061 if (quirks->mailled == 1) {
1062 param = value ? 0x92 : 0x93;
1063 i8042_lock_chip();
1064 i8042_command(&param, 0x1059);
1065 i8042_unlock_chip();
1066 return 0;
1067 }
1068 break;
1069 default:
1070 return AE_ERROR;
1071 }
1072 return WMI_execute_u32(method_id, (u32)value, NULL);
1073 }
1074
1075 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1076 {
1077 struct wmid3_gds_return_value return_value;
1078 acpi_status status;
1079 union acpi_object *obj;
1080 struct wmid3_gds_get_input_param params = {
1081 .function_num = 0x1,
1082 .hotkey_number = commun_fn_key_number,
1083 .devices = device,
1084 };
1085 struct acpi_buffer input = {
1086 sizeof(struct wmid3_gds_get_input_param),
1087 &params
1088 };
1089 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1090
1091 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1092 if (ACPI_FAILURE(status))
1093 return status;
1094
1095 obj = output.pointer;
1096
1097 if (!obj)
1098 return AE_ERROR;
1099 else if (obj->type != ACPI_TYPE_BUFFER) {
1100 kfree(obj);
1101 return AE_ERROR;
1102 }
1103 if (obj->buffer.length != 8) {
1104 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1105 kfree(obj);
1106 return AE_ERROR;
1107 }
1108
1109 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1110 kfree(obj);
1111
1112 if (return_value.error_code || return_value.ec_return_value)
1113 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1114 device,
1115 return_value.error_code,
1116 return_value.ec_return_value);
1117 else
1118 *value = !!(return_value.devices & device);
1119
1120 return status;
1121 }
1122
1123 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1124 {
1125 u16 device;
1126
1127 switch (cap) {
1128 case ACER_CAP_WIRELESS:
1129 device = ACER_WMID3_GDS_WIRELESS;
1130 break;
1131 case ACER_CAP_BLUETOOTH:
1132 device = ACER_WMID3_GDS_BLUETOOTH;
1133 break;
1134 case ACER_CAP_THREEG:
1135 device = ACER_WMID3_GDS_THREEG;
1136 break;
1137 default:
1138 return AE_ERROR;
1139 }
1140 return wmid3_get_device_status(value, device);
1141 }
1142
1143 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1144 {
1145 struct wmid3_gds_return_value return_value;
1146 acpi_status status;
1147 union acpi_object *obj;
1148 u16 devices;
1149 struct wmid3_gds_get_input_param get_params = {
1150 .function_num = 0x1,
1151 .hotkey_number = commun_fn_key_number,
1152 .devices = commun_func_bitmap,
1153 };
1154 struct acpi_buffer get_input = {
1155 sizeof(struct wmid3_gds_get_input_param),
1156 &get_params
1157 };
1158 struct wmid3_gds_set_input_param set_params = {
1159 .function_num = 0x2,
1160 .hotkey_number = commun_fn_key_number,
1161 .devices = commun_func_bitmap,
1162 };
1163 struct acpi_buffer set_input = {
1164 sizeof(struct wmid3_gds_set_input_param),
1165 &set_params
1166 };
1167 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1168 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1169
1170 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1171 if (ACPI_FAILURE(status))
1172 return status;
1173
1174 obj = output.pointer;
1175
1176 if (!obj)
1177 return AE_ERROR;
1178 else if (obj->type != ACPI_TYPE_BUFFER) {
1179 kfree(obj);
1180 return AE_ERROR;
1181 }
1182 if (obj->buffer.length != 8) {
1183 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1184 kfree(obj);
1185 return AE_ERROR;
1186 }
1187
1188 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1189 kfree(obj);
1190
1191 if (return_value.error_code || return_value.ec_return_value) {
1192 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1193 return_value.error_code,
1194 return_value.ec_return_value);
1195 return status;
1196 }
1197
1198 devices = return_value.devices;
1199 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1200
1201 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1202 if (ACPI_FAILURE(status))
1203 return status;
1204
1205 obj = output2.pointer;
1206
1207 if (!obj)
1208 return AE_ERROR;
1209 else if (obj->type != ACPI_TYPE_BUFFER) {
1210 kfree(obj);
1211 return AE_ERROR;
1212 }
1213 if (obj->buffer.length != 4) {
1214 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1215 kfree(obj);
1216 return AE_ERROR;
1217 }
1218
1219 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1220 kfree(obj);
1221
1222 if (return_value.error_code || return_value.ec_return_value)
1223 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1224 return_value.error_code,
1225 return_value.ec_return_value);
1226
1227 return status;
1228 }
1229
1230 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1231 {
1232 u16 device;
1233
1234 switch (cap) {
1235 case ACER_CAP_WIRELESS:
1236 device = ACER_WMID3_GDS_WIRELESS;
1237 break;
1238 case ACER_CAP_BLUETOOTH:
1239 device = ACER_WMID3_GDS_BLUETOOTH;
1240 break;
1241 case ACER_CAP_THREEG:
1242 device = ACER_WMID3_GDS_THREEG;
1243 break;
1244 default:
1245 return AE_ERROR;
1246 }
1247 return wmid3_set_device_status(value, device);
1248 }
1249
1250 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1251 {
1252 struct hotkey_function_type_aa *type_aa;
1253
1254 /* We are looking for OEM-specific Type AAh */
1255 if (header->type != 0xAA)
1256 return;
1257
1258 has_type_aa = true;
1259 type_aa = (struct hotkey_function_type_aa *) header;
1260
1261 pr_info("Function bitmap for Communication Button: 0x%x\n",
1262 type_aa->commun_func_bitmap);
1263 commun_func_bitmap = type_aa->commun_func_bitmap;
1264
1265 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1266 interface->capability |= ACER_CAP_WIRELESS;
1267 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1268 interface->capability |= ACER_CAP_THREEG;
1269 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1270 interface->capability |= ACER_CAP_BLUETOOTH;
1271 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) {
1272 interface->capability |= ACER_CAP_RFBTN;
1273 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1274 }
1275
1276 commun_fn_key_number = type_aa->commun_fn_key_number;
1277 }
1278
1279 static acpi_status __init WMID_set_capabilities(void)
1280 {
1281 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1282 union acpi_object *obj;
1283 acpi_status status;
1284 u32 devices;
1285
1286 status = wmi_query_block(WMID_GUID2, 0, &out);
1287 if (ACPI_FAILURE(status))
1288 return status;
1289
1290 obj = (union acpi_object *) out.pointer;
1291 if (obj) {
1292 if (obj->type == ACPI_TYPE_BUFFER &&
1293 (obj->buffer.length == sizeof(u32) ||
1294 obj->buffer.length == sizeof(u64))) {
1295 devices = *((u32 *) obj->buffer.pointer);
1296 } else if (obj->type == ACPI_TYPE_INTEGER) {
1297 devices = (u32) obj->integer.value;
1298 } else {
1299 kfree(out.pointer);
1300 return AE_ERROR;
1301 }
1302 } else {
1303 kfree(out.pointer);
1304 return AE_ERROR;
1305 }
1306
1307 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1308 if (devices & 0x07)
1309 interface->capability |= ACER_CAP_WIRELESS;
1310 if (devices & 0x40)
1311 interface->capability |= ACER_CAP_THREEG;
1312 if (devices & 0x10)
1313 interface->capability |= ACER_CAP_BLUETOOTH;
1314
1315 if (!(devices & 0x20))
1316 max_brightness = 0x9;
1317
1318 kfree(out.pointer);
1319 return status;
1320 }
1321
1322 static struct wmi_interface wmid_interface = {
1323 .type = ACER_WMID,
1324 };
1325
1326 static struct wmi_interface wmid_v2_interface = {
1327 .type = ACER_WMID_v2,
1328 };
1329
1330 /*
1331 * Generic Device (interface-independent)
1332 */
1333
1334 static acpi_status get_u32(u32 *value, u32 cap)
1335 {
1336 acpi_status status = AE_ERROR;
1337
1338 switch (interface->type) {
1339 case ACER_AMW0:
1340 status = AMW0_get_u32(value, cap);
1341 break;
1342 case ACER_AMW0_V2:
1343 if (cap == ACER_CAP_MAILLED) {
1344 status = AMW0_get_u32(value, cap);
1345 break;
1346 }
1347 case ACER_WMID:
1348 status = WMID_get_u32(value, cap);
1349 break;
1350 case ACER_WMID_v2:
1351 if (cap & (ACER_CAP_WIRELESS |
1352 ACER_CAP_BLUETOOTH |
1353 ACER_CAP_THREEG))
1354 status = wmid_v2_get_u32(value, cap);
1355 else if (wmi_has_guid(WMID_GUID2))
1356 status = WMID_get_u32(value, cap);
1357 break;
1358 }
1359
1360 return status;
1361 }
1362
1363 static acpi_status set_u32(u32 value, u32 cap)
1364 {
1365 acpi_status status;
1366
1367 if (interface->capability & cap) {
1368 switch (interface->type) {
1369 case ACER_AMW0:
1370 return AMW0_set_u32(value, cap);
1371 case ACER_AMW0_V2:
1372 if (cap == ACER_CAP_MAILLED)
1373 return AMW0_set_u32(value, cap);
1374
1375 /*
1376 * On some models, some WMID methods don't toggle
1377 * properly. For those cases, we want to run the AMW0
1378 * method afterwards to be certain we've really toggled
1379 * the device state.
1380 */
1381 if (cap == ACER_CAP_WIRELESS ||
1382 cap == ACER_CAP_BLUETOOTH) {
1383 status = WMID_set_u32(value, cap);
1384 if (ACPI_FAILURE(status))
1385 return status;
1386
1387 return AMW0_set_u32(value, cap);
1388 }
1389 case ACER_WMID:
1390 return WMID_set_u32(value, cap);
1391 case ACER_WMID_v2:
1392 if (cap & (ACER_CAP_WIRELESS |
1393 ACER_CAP_BLUETOOTH |
1394 ACER_CAP_THREEG))
1395 return wmid_v2_set_u32(value, cap);
1396 else if (wmi_has_guid(WMID_GUID2))
1397 return WMID_set_u32(value, cap);
1398 default:
1399 return AE_BAD_PARAMETER;
1400 }
1401 }
1402 return AE_BAD_PARAMETER;
1403 }
1404
1405 static void __init acer_commandline_init(void)
1406 {
1407 /*
1408 * These will all fail silently if the value given is invalid, or the
1409 * capability isn't available on the given interface
1410 */
1411 if (mailled >= 0)
1412 set_u32(mailled, ACER_CAP_MAILLED);
1413 if (!has_type_aa && threeg >= 0)
1414 set_u32(threeg, ACER_CAP_THREEG);
1415 if (brightness >= 0)
1416 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1417 }
1418
1419 /*
1420 * LED device (Mail LED only, no other LEDs known yet)
1421 */
1422 static void mail_led_set(struct led_classdev *led_cdev,
1423 enum led_brightness value)
1424 {
1425 set_u32(value, ACER_CAP_MAILLED);
1426 }
1427
1428 static struct led_classdev mail_led = {
1429 .name = "acer-wmi::mail",
1430 .brightness_set = mail_led_set,
1431 };
1432
1433 static int acer_led_init(struct device *dev)
1434 {
1435 return led_classdev_register(dev, &mail_led);
1436 }
1437
1438 static void acer_led_exit(void)
1439 {
1440 set_u32(LED_OFF, ACER_CAP_MAILLED);
1441 led_classdev_unregister(&mail_led);
1442 }
1443
1444 /*
1445 * Backlight device
1446 */
1447 static struct backlight_device *acer_backlight_device;
1448
1449 static int read_brightness(struct backlight_device *bd)
1450 {
1451 u32 value;
1452 get_u32(&value, ACER_CAP_BRIGHTNESS);
1453 return value;
1454 }
1455
1456 static int update_bl_status(struct backlight_device *bd)
1457 {
1458 int intensity = bd->props.brightness;
1459
1460 if (bd->props.power != FB_BLANK_UNBLANK)
1461 intensity = 0;
1462 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1463 intensity = 0;
1464
1465 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1466
1467 return 0;
1468 }
1469
1470 static const struct backlight_ops acer_bl_ops = {
1471 .get_brightness = read_brightness,
1472 .update_status = update_bl_status,
1473 };
1474
1475 static int acer_backlight_init(struct device *dev)
1476 {
1477 struct backlight_properties props;
1478 struct backlight_device *bd;
1479
1480 memset(&props, 0, sizeof(struct backlight_properties));
1481 props.type = BACKLIGHT_PLATFORM;
1482 props.max_brightness = max_brightness;
1483 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1484 &props);
1485 if (IS_ERR(bd)) {
1486 pr_err("Could not register Acer backlight device\n");
1487 acer_backlight_device = NULL;
1488 return PTR_ERR(bd);
1489 }
1490
1491 acer_backlight_device = bd;
1492
1493 bd->props.power = FB_BLANK_UNBLANK;
1494 bd->props.brightness = read_brightness(bd);
1495 backlight_update_status(bd);
1496 return 0;
1497 }
1498
1499 static void acer_backlight_exit(void)
1500 {
1501 backlight_device_unregister(acer_backlight_device);
1502 }
1503
1504 /*
1505 * Accelerometer device
1506 */
1507 static acpi_handle gsensor_handle;
1508
1509 static int acer_gsensor_init(void)
1510 {
1511 acpi_status status;
1512 struct acpi_buffer output;
1513 union acpi_object out_obj;
1514
1515 output.length = sizeof(out_obj);
1516 output.pointer = &out_obj;
1517 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1518 if (ACPI_FAILURE(status))
1519 return -1;
1520
1521 return 0;
1522 }
1523
1524 static int acer_gsensor_open(struct input_dev *input)
1525 {
1526 return acer_gsensor_init();
1527 }
1528
1529 static int acer_gsensor_event(void)
1530 {
1531 acpi_status status;
1532 struct acpi_buffer output;
1533 union acpi_object out_obj[5];
1534
1535 if (!has_cap(ACER_CAP_ACCEL))
1536 return -1;
1537
1538 output.length = sizeof(out_obj);
1539 output.pointer = out_obj;
1540
1541 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1542 if (ACPI_FAILURE(status))
1543 return -1;
1544
1545 if (out_obj->package.count != 4)
1546 return -1;
1547
1548 input_report_abs(acer_wmi_accel_dev, ABS_X,
1549 (s16)out_obj->package.elements[0].integer.value);
1550 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1551 (s16)out_obj->package.elements[1].integer.value);
1552 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1553 (s16)out_obj->package.elements[2].integer.value);
1554 input_sync(acer_wmi_accel_dev);
1555 return 0;
1556 }
1557
1558 /*
1559 * Rfkill devices
1560 */
1561 static void acer_rfkill_update(struct work_struct *ignored);
1562 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1563 static void acer_rfkill_update(struct work_struct *ignored)
1564 {
1565 u32 state;
1566 acpi_status status;
1567
1568 if (has_cap(ACER_CAP_WIRELESS)) {
1569 status = get_u32(&state, ACER_CAP_WIRELESS);
1570 if (ACPI_SUCCESS(status)) {
1571 if (quirks->wireless == 3)
1572 rfkill_set_hw_state(wireless_rfkill, !state);
1573 else
1574 rfkill_set_sw_state(wireless_rfkill, !state);
1575 }
1576 }
1577
1578 if (has_cap(ACER_CAP_BLUETOOTH)) {
1579 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1580 if (ACPI_SUCCESS(status))
1581 rfkill_set_sw_state(bluetooth_rfkill, !state);
1582 }
1583
1584 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1585 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1586 if (ACPI_SUCCESS(status))
1587 rfkill_set_sw_state(threeg_rfkill, !state);
1588 }
1589
1590 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1591 }
1592
1593 static int acer_rfkill_set(void *data, bool blocked)
1594 {
1595 acpi_status status;
1596 u32 cap = (unsigned long)data;
1597
1598 if (rfkill_inited) {
1599 status = set_u32(!blocked, cap);
1600 if (ACPI_FAILURE(status))
1601 return -ENODEV;
1602 }
1603
1604 return 0;
1605 }
1606
1607 static const struct rfkill_ops acer_rfkill_ops = {
1608 .set_block = acer_rfkill_set,
1609 };
1610
1611 static struct rfkill *acer_rfkill_register(struct device *dev,
1612 enum rfkill_type type,
1613 char *name, u32 cap)
1614 {
1615 int err;
1616 struct rfkill *rfkill_dev;
1617 u32 state;
1618 acpi_status status;
1619
1620 rfkill_dev = rfkill_alloc(name, dev, type,
1621 &acer_rfkill_ops,
1622 (void *)(unsigned long)cap);
1623 if (!rfkill_dev)
1624 return ERR_PTR(-ENOMEM);
1625
1626 status = get_u32(&state, cap);
1627
1628 err = rfkill_register(rfkill_dev);
1629 if (err) {
1630 rfkill_destroy(rfkill_dev);
1631 return ERR_PTR(err);
1632 }
1633
1634 if (ACPI_SUCCESS(status))
1635 rfkill_set_sw_state(rfkill_dev, !state);
1636
1637 return rfkill_dev;
1638 }
1639
1640 static int acer_rfkill_init(struct device *dev)
1641 {
1642 int err;
1643
1644 if (has_cap(ACER_CAP_WIRELESS)) {
1645 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1646 "acer-wireless", ACER_CAP_WIRELESS);
1647 if (IS_ERR(wireless_rfkill)) {
1648 err = PTR_ERR(wireless_rfkill);
1649 goto error_wireless;
1650 }
1651 }
1652
1653 if (has_cap(ACER_CAP_BLUETOOTH)) {
1654 bluetooth_rfkill = acer_rfkill_register(dev,
1655 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1656 ACER_CAP_BLUETOOTH);
1657 if (IS_ERR(bluetooth_rfkill)) {
1658 err = PTR_ERR(bluetooth_rfkill);
1659 goto error_bluetooth;
1660 }
1661 }
1662
1663 if (has_cap(ACER_CAP_THREEG)) {
1664 threeg_rfkill = acer_rfkill_register(dev,
1665 RFKILL_TYPE_WWAN, "acer-threeg",
1666 ACER_CAP_THREEG);
1667 if (IS_ERR(threeg_rfkill)) {
1668 err = PTR_ERR(threeg_rfkill);
1669 goto error_threeg;
1670 }
1671 }
1672
1673 rfkill_inited = true;
1674
1675 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1676 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1677 schedule_delayed_work(&acer_rfkill_work,
1678 round_jiffies_relative(HZ));
1679
1680 return 0;
1681
1682 error_threeg:
1683 if (has_cap(ACER_CAP_BLUETOOTH)) {
1684 rfkill_unregister(bluetooth_rfkill);
1685 rfkill_destroy(bluetooth_rfkill);
1686 }
1687 error_bluetooth:
1688 if (has_cap(ACER_CAP_WIRELESS)) {
1689 rfkill_unregister(wireless_rfkill);
1690 rfkill_destroy(wireless_rfkill);
1691 }
1692 error_wireless:
1693 return err;
1694 }
1695
1696 static void acer_rfkill_exit(void)
1697 {
1698 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1699 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1700 cancel_delayed_work_sync(&acer_rfkill_work);
1701
1702 if (has_cap(ACER_CAP_WIRELESS)) {
1703 rfkill_unregister(wireless_rfkill);
1704 rfkill_destroy(wireless_rfkill);
1705 }
1706
1707 if (has_cap(ACER_CAP_BLUETOOTH)) {
1708 rfkill_unregister(bluetooth_rfkill);
1709 rfkill_destroy(bluetooth_rfkill);
1710 }
1711
1712 if (has_cap(ACER_CAP_THREEG)) {
1713 rfkill_unregister(threeg_rfkill);
1714 rfkill_destroy(threeg_rfkill);
1715 }
1716 return;
1717 }
1718
1719 static void acer_wmi_notify(u32 value, void *context)
1720 {
1721 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1722 union acpi_object *obj;
1723 struct event_return_value return_value;
1724 acpi_status status;
1725 u16 device_state;
1726 const struct key_entry *key;
1727 u32 scancode;
1728
1729 status = wmi_get_event_data(value, &response);
1730 if (status != AE_OK) {
1731 pr_warn("bad event status 0x%x\n", status);
1732 return;
1733 }
1734
1735 obj = (union acpi_object *)response.pointer;
1736
1737 if (!obj)
1738 return;
1739 if (obj->type != ACPI_TYPE_BUFFER) {
1740 pr_warn("Unknown response received %d\n", obj->type);
1741 kfree(obj);
1742 return;
1743 }
1744 if (obj->buffer.length != 8) {
1745 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1746 kfree(obj);
1747 return;
1748 }
1749
1750 return_value = *((struct event_return_value *)obj->buffer.pointer);
1751 kfree(obj);
1752
1753 switch (return_value.function) {
1754 case WMID_HOTKEY_EVENT:
1755 device_state = return_value.device_state;
1756 pr_debug("device state: 0x%x\n", device_state);
1757
1758 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1759 return_value.key_num);
1760 if (!key) {
1761 pr_warn("Unknown key number - 0x%x\n",
1762 return_value.key_num);
1763 } else {
1764 scancode = return_value.key_num;
1765 switch (key->keycode) {
1766 case KEY_WLAN:
1767 case KEY_BLUETOOTH:
1768 if (has_cap(ACER_CAP_WIRELESS))
1769 rfkill_set_sw_state(wireless_rfkill,
1770 !(device_state & ACER_WMID3_GDS_WIRELESS));
1771 if (has_cap(ACER_CAP_THREEG))
1772 rfkill_set_sw_state(threeg_rfkill,
1773 !(device_state & ACER_WMID3_GDS_THREEG));
1774 if (has_cap(ACER_CAP_BLUETOOTH))
1775 rfkill_set_sw_state(bluetooth_rfkill,
1776 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1777 break;
1778 case KEY_TOUCHPAD_TOGGLE:
1779 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1780 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1781 }
1782 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1783 }
1784 break;
1785 case WMID_ACCEL_EVENT:
1786 acer_gsensor_event();
1787 break;
1788 default:
1789 pr_warn("Unknown function number - %d - %d\n",
1790 return_value.function, return_value.key_num);
1791 break;
1792 }
1793 }
1794
1795 static acpi_status __init
1796 wmid3_set_function_mode(struct func_input_params *params,
1797 struct func_return_value *return_value)
1798 {
1799 acpi_status status;
1800 union acpi_object *obj;
1801
1802 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1803 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1804
1805 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1806 if (ACPI_FAILURE(status))
1807 return status;
1808
1809 obj = output.pointer;
1810
1811 if (!obj)
1812 return AE_ERROR;
1813 else if (obj->type != ACPI_TYPE_BUFFER) {
1814 kfree(obj);
1815 return AE_ERROR;
1816 }
1817 if (obj->buffer.length != 4) {
1818 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1819 kfree(obj);
1820 return AE_ERROR;
1821 }
1822
1823 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1824 kfree(obj);
1825
1826 return status;
1827 }
1828
1829 static int __init acer_wmi_enable_ec_raw(void)
1830 {
1831 struct func_return_value return_value;
1832 acpi_status status;
1833 struct func_input_params params = {
1834 .function_num = 0x1,
1835 .commun_devices = 0xFFFF,
1836 .devices = 0xFFFF,
1837 .app_status = 0x00, /* Launch Manager Deactive */
1838 .app_mask = 0x01,
1839 };
1840
1841 status = wmid3_set_function_mode(&params, &return_value);
1842
1843 if (return_value.error_code || return_value.ec_return_value)
1844 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1845 return_value.error_code,
1846 return_value.ec_return_value);
1847 else
1848 pr_info("Enabled EC raw mode\n");
1849
1850 return status;
1851 }
1852
1853 static int __init acer_wmi_enable_lm(void)
1854 {
1855 struct func_return_value return_value;
1856 acpi_status status;
1857 struct func_input_params params = {
1858 .function_num = 0x1,
1859 .commun_devices = 0xFFFF,
1860 .devices = 0xFFFF,
1861 .app_status = 0x01, /* Launch Manager Active */
1862 .app_mask = 0x01,
1863 };
1864
1865 status = wmid3_set_function_mode(&params, &return_value);
1866
1867 if (return_value.error_code || return_value.ec_return_value)
1868 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1869 return_value.error_code,
1870 return_value.ec_return_value);
1871
1872 return status;
1873 }
1874
1875 static int __init acer_wmi_enable_rf_button(void)
1876 {
1877 struct func_return_value return_value;
1878 acpi_status status;
1879 struct func_input_params params = {
1880 .function_num = 0x1,
1881 .commun_devices = 0xFFFF,
1882 .devices = 0xFFFF,
1883 .app_status = 0x10, /* RF Button Active */
1884 .app_mask = 0x10,
1885 };
1886
1887 status = wmid3_set_function_mode(&params, &return_value);
1888
1889 if (return_value.error_code || return_value.ec_return_value)
1890 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1891 return_value.error_code,
1892 return_value.ec_return_value);
1893
1894 return status;
1895 }
1896
1897 #define ACER_WMID_ACCEL_HID "BST0001"
1898
1899 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1900 void *ctx, void **retval)
1901 {
1902 struct acpi_device *dev;
1903
1904 if (!strcmp(ctx, "SENR")) {
1905 if (acpi_bus_get_device(ah, &dev))
1906 return AE_OK;
1907 if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
1908 return AE_OK;
1909 } else
1910 return AE_OK;
1911
1912 *(acpi_handle *)retval = ah;
1913
1914 return AE_CTRL_TERMINATE;
1915 }
1916
1917 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1918 acpi_handle *ah)
1919 {
1920 acpi_status status;
1921 acpi_handle handle;
1922
1923 BUG_ON(!name || !ah);
1924
1925 handle = NULL;
1926 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1927 (void *)name, &handle);
1928 if (ACPI_SUCCESS(status) && handle) {
1929 *ah = handle;
1930 return 0;
1931 } else {
1932 return -ENODEV;
1933 }
1934 }
1935
1936 static int __init acer_wmi_accel_setup(void)
1937 {
1938 int err;
1939
1940 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
1941 if (err)
1942 return err;
1943
1944 interface->capability |= ACER_CAP_ACCEL;
1945
1946 acer_wmi_accel_dev = input_allocate_device();
1947 if (!acer_wmi_accel_dev)
1948 return -ENOMEM;
1949
1950 acer_wmi_accel_dev->open = acer_gsensor_open;
1951
1952 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1953 acer_wmi_accel_dev->phys = "wmi/input1";
1954 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1955 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1956 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1957 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1958 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1959
1960 err = input_register_device(acer_wmi_accel_dev);
1961 if (err)
1962 goto err_free_dev;
1963
1964 return 0;
1965
1966 err_free_dev:
1967 input_free_device(acer_wmi_accel_dev);
1968 return err;
1969 }
1970
1971 static void acer_wmi_accel_destroy(void)
1972 {
1973 input_unregister_device(acer_wmi_accel_dev);
1974 }
1975
1976 static int __init acer_wmi_input_setup(void)
1977 {
1978 acpi_status status;
1979 int err;
1980
1981 acer_wmi_input_dev = input_allocate_device();
1982 if (!acer_wmi_input_dev)
1983 return -ENOMEM;
1984
1985 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1986 acer_wmi_input_dev->phys = "wmi/input0";
1987 acer_wmi_input_dev->id.bustype = BUS_HOST;
1988
1989 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1990 if (err)
1991 goto err_free_dev;
1992
1993 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1994 acer_wmi_notify, NULL);
1995 if (ACPI_FAILURE(status)) {
1996 err = -EIO;
1997 goto err_free_dev;
1998 }
1999
2000 err = input_register_device(acer_wmi_input_dev);
2001 if (err)
2002 goto err_uninstall_notifier;
2003
2004 return 0;
2005
2006 err_uninstall_notifier:
2007 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2008 err_free_dev:
2009 input_free_device(acer_wmi_input_dev);
2010 return err;
2011 }
2012
2013 static void acer_wmi_input_destroy(void)
2014 {
2015 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2016 input_unregister_device(acer_wmi_input_dev);
2017 }
2018
2019 /*
2020 * debugfs functions
2021 */
2022 static u32 get_wmid_devices(void)
2023 {
2024 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2025 union acpi_object *obj;
2026 acpi_status status;
2027 u32 devices = 0;
2028
2029 status = wmi_query_block(WMID_GUID2, 0, &out);
2030 if (ACPI_FAILURE(status))
2031 return 0;
2032
2033 obj = (union acpi_object *) out.pointer;
2034 if (obj) {
2035 if (obj->type == ACPI_TYPE_BUFFER &&
2036 (obj->buffer.length == sizeof(u32) ||
2037 obj->buffer.length == sizeof(u64))) {
2038 devices = *((u32 *) obj->buffer.pointer);
2039 } else if (obj->type == ACPI_TYPE_INTEGER) {
2040 devices = (u32) obj->integer.value;
2041 }
2042 }
2043
2044 kfree(out.pointer);
2045 return devices;
2046 }
2047
2048 /*
2049 * Platform device
2050 */
2051 static int acer_platform_probe(struct platform_device *device)
2052 {
2053 int err;
2054
2055 if (has_cap(ACER_CAP_MAILLED)) {
2056 err = acer_led_init(&device->dev);
2057 if (err)
2058 goto error_mailled;
2059 }
2060
2061 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2062 err = acer_backlight_init(&device->dev);
2063 if (err)
2064 goto error_brightness;
2065 }
2066
2067 err = acer_rfkill_init(&device->dev);
2068 if (err)
2069 goto error_rfkill;
2070
2071 return err;
2072
2073 error_rfkill:
2074 if (has_cap(ACER_CAP_BRIGHTNESS))
2075 acer_backlight_exit();
2076 error_brightness:
2077 if (has_cap(ACER_CAP_MAILLED))
2078 acer_led_exit();
2079 error_mailled:
2080 return err;
2081 }
2082
2083 static int acer_platform_remove(struct platform_device *device)
2084 {
2085 if (has_cap(ACER_CAP_MAILLED))
2086 acer_led_exit();
2087 if (has_cap(ACER_CAP_BRIGHTNESS))
2088 acer_backlight_exit();
2089
2090 acer_rfkill_exit();
2091 return 0;
2092 }
2093
2094 #ifdef CONFIG_PM_SLEEP
2095 static int acer_suspend(struct device *dev)
2096 {
2097 u32 value;
2098 struct acer_data *data = &interface->data;
2099
2100 if (!data)
2101 return -ENOMEM;
2102
2103 if (has_cap(ACER_CAP_MAILLED)) {
2104 get_u32(&value, ACER_CAP_MAILLED);
2105 set_u32(LED_OFF, ACER_CAP_MAILLED);
2106 data->mailled = value;
2107 }
2108
2109 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2110 get_u32(&value, ACER_CAP_BRIGHTNESS);
2111 data->brightness = value;
2112 }
2113
2114 return 0;
2115 }
2116
2117 static int acer_resume(struct device *dev)
2118 {
2119 struct acer_data *data = &interface->data;
2120
2121 if (!data)
2122 return -ENOMEM;
2123
2124 if (has_cap(ACER_CAP_MAILLED))
2125 set_u32(data->mailled, ACER_CAP_MAILLED);
2126
2127 if (has_cap(ACER_CAP_BRIGHTNESS))
2128 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2129
2130 if (has_cap(ACER_CAP_ACCEL))
2131 acer_gsensor_init();
2132
2133 return 0;
2134 }
2135 #else
2136 #define acer_suspend NULL
2137 #define acer_resume NULL
2138 #endif
2139
2140 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2141
2142 static void acer_platform_shutdown(struct platform_device *device)
2143 {
2144 struct acer_data *data = &interface->data;
2145
2146 if (!data)
2147 return;
2148
2149 if (has_cap(ACER_CAP_MAILLED))
2150 set_u32(LED_OFF, ACER_CAP_MAILLED);
2151 }
2152
2153 static struct platform_driver acer_platform_driver = {
2154 .driver = {
2155 .name = "acer-wmi",
2156 .pm = &acer_pm,
2157 },
2158 .probe = acer_platform_probe,
2159 .remove = acer_platform_remove,
2160 .shutdown = acer_platform_shutdown,
2161 };
2162
2163 static struct platform_device *acer_platform_device;
2164
2165 static void remove_debugfs(void)
2166 {
2167 debugfs_remove(interface->debug.devices);
2168 debugfs_remove(interface->debug.root);
2169 }
2170
2171 static int __init create_debugfs(void)
2172 {
2173 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2174 if (!interface->debug.root) {
2175 pr_err("Failed to create debugfs directory");
2176 return -ENOMEM;
2177 }
2178
2179 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2180 interface->debug.root,
2181 &interface->debug.wmid_devices);
2182 if (!interface->debug.devices)
2183 goto error_debugfs;
2184
2185 return 0;
2186
2187 error_debugfs:
2188 remove_debugfs();
2189 return -ENOMEM;
2190 }
2191
2192 static int __init acer_wmi_init(void)
2193 {
2194 int err;
2195
2196 pr_info("Acer Laptop ACPI-WMI Extras\n");
2197
2198 if (dmi_check_system(acer_blacklist)) {
2199 pr_info("Blacklisted hardware detected - not loading\n");
2200 return -ENODEV;
2201 }
2202
2203 find_quirks();
2204
2205 /*
2206 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2207 * machines like Lenovo, Fujitsu and Medion. In the past days,
2208 * acer-wmi driver handled those non-Acer machines by quirks list.
2209 * But actually acer-wmi driver was loaded on any machines that have
2210 * AMW0_GUID1. This behavior is strange because those machines should
2211 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2212 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2213 * should be in Acer/Gateway/Packard Bell white list, or it's already
2214 * in the past quirk list.
2215 */
2216 if (wmi_has_guid(AMW0_GUID1) &&
2217 !dmi_check_system(amw0_whitelist) &&
2218 quirks == &quirk_unknown) {
2219 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
2220 return -ENODEV;
2221 }
2222
2223 /*
2224 * Detect which ACPI-WMI interface we're using.
2225 */
2226 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2227 interface = &AMW0_V2_interface;
2228
2229 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2230 interface = &wmid_interface;
2231
2232 if (wmi_has_guid(WMID_GUID3))
2233 interface = &wmid_v2_interface;
2234
2235 if (interface)
2236 dmi_walk(type_aa_dmi_decode, NULL);
2237
2238 if (wmi_has_guid(WMID_GUID2) && interface) {
2239 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2240 pr_err("Unable to detect available WMID devices\n");
2241 return -ENODEV;
2242 }
2243 /* WMID always provides brightness methods */
2244 interface->capability |= ACER_CAP_BRIGHTNESS;
2245 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2246 pr_err("No WMID device detection method found\n");
2247 return -ENODEV;
2248 }
2249
2250 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2251 interface = &AMW0_interface;
2252
2253 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2254 pr_err("Unable to detect available AMW0 devices\n");
2255 return -ENODEV;
2256 }
2257 }
2258
2259 if (wmi_has_guid(AMW0_GUID1))
2260 AMW0_find_mailled();
2261
2262 if (!interface) {
2263 pr_err("No or unsupported WMI interface, unable to load\n");
2264 return -ENODEV;
2265 }
2266
2267 set_quirks();
2268
2269 if (dmi_check_system(video_vendor_dmi_table))
2270 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2271
2272 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2273 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2274
2275 if (wmi_has_guid(WMID_GUID3)) {
2276 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2277 pr_warn("Cannot enable RF Button Driver\n");
2278
2279 if (ec_raw_mode) {
2280 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2281 pr_err("Cannot enable EC raw mode\n");
2282 return -ENODEV;
2283 }
2284 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2285 pr_err("Cannot enable Launch Manager mode\n");
2286 return -ENODEV;
2287 }
2288 } else if (ec_raw_mode) {
2289 pr_info("No WMID EC raw mode enable method\n");
2290 }
2291
2292 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2293 err = acer_wmi_input_setup();
2294 if (err)
2295 return err;
2296 err = acer_wmi_accel_setup();
2297 if (err && err != -ENODEV)
2298 pr_warn("Cannot enable accelerometer\n");
2299 }
2300
2301 err = platform_driver_register(&acer_platform_driver);
2302 if (err) {
2303 pr_err("Unable to register platform driver\n");
2304 goto error_platform_register;
2305 }
2306
2307 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2308 if (!acer_platform_device) {
2309 err = -ENOMEM;
2310 goto error_device_alloc;
2311 }
2312
2313 err = platform_device_add(acer_platform_device);
2314 if (err)
2315 goto error_device_add;
2316
2317 if (wmi_has_guid(WMID_GUID2)) {
2318 interface->debug.wmid_devices = get_wmid_devices();
2319 err = create_debugfs();
2320 if (err)
2321 goto error_create_debugfs;
2322 }
2323
2324 /* Override any initial settings with values from the commandline */
2325 acer_commandline_init();
2326
2327 return 0;
2328
2329 error_create_debugfs:
2330 platform_device_del(acer_platform_device);
2331 error_device_add:
2332 platform_device_put(acer_platform_device);
2333 error_device_alloc:
2334 platform_driver_unregister(&acer_platform_driver);
2335 error_platform_register:
2336 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2337 acer_wmi_input_destroy();
2338 if (has_cap(ACER_CAP_ACCEL))
2339 acer_wmi_accel_destroy();
2340
2341 return err;
2342 }
2343
2344 static void __exit acer_wmi_exit(void)
2345 {
2346 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2347 acer_wmi_input_destroy();
2348
2349 if (has_cap(ACER_CAP_ACCEL))
2350 acer_wmi_accel_destroy();
2351
2352 remove_debugfs();
2353 platform_device_unregister(acer_platform_device);
2354 platform_driver_unregister(&acer_platform_driver);
2355
2356 pr_info("Acer Laptop WMI Extras unloaded\n");
2357 return;
2358 }
2359
2360 module_init(acer_wmi_init);
2361 module_exit(acer_wmi_exit);
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