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mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program
[linux/fpc-iii.git] / drivers / platform / x86 / acer-wmi.c
blobc29b9b611ab26a10008a88bfd7de65287742753d
1 /*
2 * Acer WMI Laptop Extras
3 *
4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
5 *
6 * Based on acer_acpi:
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/types.h>
31 #include <linux/dmi.h>
32 #include <linux/fb.h>
33 #include <linux/backlight.h>
34 #include <linux/leds.h>
35 #include <linux/platform_device.h>
36 #include <linux/acpi.h>
37 #include <linux/i8042.h>
38 #include <linux/rfkill.h>
39 #include <linux/workqueue.h>
40 #include <linux/debugfs.h>
41 #include <linux/slab.h>
42 #include <linux/input.h>
43 #include <linux/input/sparse-keymap.h>
44 #include <acpi/video.h>
45
46 MODULE_AUTHOR("Carlos Corbacho");
47 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
48 MODULE_LICENSE("GPL");
49
50 /*
51 * Magic Number
52 * Meaning is unknown - this number is required for writing to ACPI for AMW0
53 * (it's also used in acerhk when directly accessing the BIOS)
54 */
55 #define ACER_AMW0_WRITE 0x9610
56
57 /*
58 * Bit masks for the AMW0 interface
59 */
60 #define ACER_AMW0_WIRELESS_MASK 0x35
61 #define ACER_AMW0_BLUETOOTH_MASK 0x34
62 #define ACER_AMW0_MAILLED_MASK 0x31
63
64 /*
65 * Method IDs for WMID interface
66 */
67 #define ACER_WMID_GET_WIRELESS_METHODID 1
68 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
69 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
70 #define ACER_WMID_SET_WIRELESS_METHODID 4
71 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
72 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
73 #define ACER_WMID_GET_THREEG_METHODID 10
74 #define ACER_WMID_SET_THREEG_METHODID 11
75
76 /*
77 * Acer ACPI method GUIDs
78 */
79 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
80 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
81 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
82 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
83 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
84
85 /*
86 * Acer ACPI event GUIDs
87 */
88 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
89
90 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
91 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
92 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
93
94 enum acer_wmi_event_ids {
95 WMID_HOTKEY_EVENT = 0x1,
96 WMID_ACCEL_EVENT = 0x5,
97 };
98
99 static const struct key_entry acer_wmi_keymap[] __initconst = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
131 {KE_END, 0}
132 };
133
134 static struct input_dev *acer_wmi_input_dev;
135 static struct input_dev *acer_wmi_accel_dev;
136
137 struct event_return_value {
138 u8 function;
139 u8 key_num;
140 u16 device_state;
141 u32 reserved;
142 } __attribute__((packed));
143
144 /*
145 * GUID3 Get Device Status device flags
146 */
147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
152
153 struct lm_input_params {
154 u8 function_num; /* Function Number */
155 u16 commun_devices; /* Communication type devices default status */
156 u16 devices; /* Other type devices default status */
157 u8 lm_status; /* Launch Manager Status */
158 u16 reserved;
159 } __attribute__((packed));
160
161 struct lm_return_value {
162 u8 error_code; /* Error Code */
163 u8 ec_return_value; /* EC Return Value */
164 u16 reserved;
165 } __attribute__((packed));
166
167 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
168 u8 function_num; /* Function Number */
169 u8 hotkey_number; /* Hotkey Number */
170 u16 devices; /* Set Device */
171 u8 volume_value; /* Volume Value */
172 } __attribute__((packed));
173
174 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Get Device */
178 } __attribute__((packed));
179
180 struct wmid3_gds_return_value { /* Get Device Status return value*/
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 devices; /* Current Device Status */
184 u32 reserved;
185 } __attribute__((packed));
186
187 struct hotkey_function_type_aa {
188 u8 type;
189 u8 length;
190 u16 handle;
191 u16 commun_func_bitmap;
192 u16 application_func_bitmap;
193 u16 media_func_bitmap;
194 u16 display_func_bitmap;
195 u16 others_func_bitmap;
196 u8 commun_fn_key_number;
197 } __attribute__((packed));
198
199 /*
200 * Interface capability flags
201 */
202 #define ACER_CAP_MAILLED (1<<0)
203 #define ACER_CAP_WIRELESS (1<<1)
204 #define ACER_CAP_BLUETOOTH (1<<2)
205 #define ACER_CAP_BRIGHTNESS (1<<3)
206 #define ACER_CAP_THREEG (1<<4)
207 #define ACER_CAP_ACCEL (1<<5)
208 #define ACER_CAP_ANY (0xFFFFFFFF)
209
210 /*
211 * Interface type flags
212 */
213 enum interface_flags {
214 ACER_AMW0,
215 ACER_AMW0_V2,
216 ACER_WMID,
217 ACER_WMID_v2,
218 };
219
220 #define ACER_DEFAULT_WIRELESS 0
221 #define ACER_DEFAULT_BLUETOOTH 0
222 #define ACER_DEFAULT_MAILLED 0
223 #define ACER_DEFAULT_THREEG 0
224
225 static int max_brightness = 0xF;
226
227 static int mailled = -1;
228 static int brightness = -1;
229 static int threeg = -1;
230 static int force_series;
231 static bool ec_raw_mode;
232 static bool has_type_aa;
233 static u16 commun_func_bitmap;
234 static u8 commun_fn_key_number;
235
236 module_param(mailled, int, 0444);
237 module_param(brightness, int, 0444);
238 module_param(threeg, int, 0444);
239 module_param(force_series, int, 0444);
240 module_param(ec_raw_mode, bool, 0444);
241 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
242 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
243 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
244 MODULE_PARM_DESC(force_series, "Force a different laptop series");
245 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
246
247 struct acer_data {
248 int mailled;
249 int threeg;
250 int brightness;
251 };
252
253 struct acer_debug {
254 struct dentry *root;
255 struct dentry *devices;
256 u32 wmid_devices;
257 };
258
259 static struct rfkill *wireless_rfkill;
260 static struct rfkill *bluetooth_rfkill;
261 static struct rfkill *threeg_rfkill;
262 static bool rfkill_inited;
263
264 /* Each low-level interface must define at least some of the following */
265 struct wmi_interface {
266 /* The WMI device type */
267 u32 type;
268
269 /* The capabilities this interface provides */
270 u32 capability;
271
272 /* Private data for the current interface */
273 struct acer_data data;
274
275 /* debugfs entries associated with this interface */
276 struct acer_debug debug;
277 };
278
279 /* The static interface pointer, points to the currently detected interface */
280 static struct wmi_interface *interface;
281
282 /*
283 * Embedded Controller quirks
284 * Some laptops require us to directly access the EC to either enable or query
285 * features that are not available through WMI.
286 */
287
288 struct quirk_entry {
289 u8 wireless;
290 u8 mailled;
291 s8 brightness;
292 u8 bluetooth;
293 };
294
295 static struct quirk_entry *quirks;
296
297 static void __init set_quirks(void)
298 {
299 if (!interface)
300 return;
301
302 if (quirks->mailled)
303 interface->capability |= ACER_CAP_MAILLED;
304
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
307 }
308
309 static int __init dmi_matched(const struct dmi_system_id *dmi)
310 {
311 quirks = dmi->driver_data;
312 return 1;
313 }
314
315 static struct quirk_entry quirk_unknown = {
316 };
317
318 static struct quirk_entry quirk_acer_aspire_1520 = {
319 .brightness = -1,
320 };
321
322 static struct quirk_entry quirk_acer_travelmate_2490 = {
323 .mailled = 1,
324 };
325
326 /* This AMW0 laptop has no bluetooth */
327 static struct quirk_entry quirk_medion_md_98300 = {
328 .wireless = 1,
329 };
330
331 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
332 .wireless = 2,
333 };
334
335 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
336 .wireless = 3,
337 };
338
339 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
340 static const struct dmi_system_id acer_blacklist[] __initconst = {
341 {
342 .ident = "Acer Aspire One (SSD)",
343 .matches = {
344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
346 },
347 },
348 {
349 .ident = "Acer Aspire One (HDD)",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
353 },
354 },
355 {}
356 };
357
358 static const struct dmi_system_id amw0_whitelist[] __initconst = {
359 {
360 .ident = "Acer",
361 .matches = {
362 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
363 },
364 },
365 {
366 .ident = "Gateway",
367 .matches = {
368 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
369 },
370 },
371 {
372 .ident = "Packard Bell",
373 .matches = {
374 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
375 },
376 },
377 {}
378 };
379
380 /*
381 * This quirk table is only for Acer/Gateway/Packard Bell family
382 * that those machines are supported by acer-wmi driver.
383 */
384 static const struct dmi_system_id acer_quirks[] __initconst = {
385 {
386 .callback = dmi_matched,
387 .ident = "Acer Aspire 1360",
388 .matches = {
389 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
390 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
391 },
392 .driver_data = &quirk_acer_aspire_1520,
393 },
394 {
395 .callback = dmi_matched,
396 .ident = "Acer Aspire 1520",
397 .matches = {
398 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
399 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
400 },
401 .driver_data = &quirk_acer_aspire_1520,
402 },
403 {
404 .callback = dmi_matched,
405 .ident = "Acer Aspire 3100",
406 .matches = {
407 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
408 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
409 },
410 .driver_data = &quirk_acer_travelmate_2490,
411 },
412 {
413 .callback = dmi_matched,
414 .ident = "Acer Aspire 3610",
415 .matches = {
416 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
417 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
418 },
419 .driver_data = &quirk_acer_travelmate_2490,
420 },
421 {
422 .callback = dmi_matched,
423 .ident = "Acer Aspire 5100",
424 .matches = {
425 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
426 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
427 },
428 .driver_data = &quirk_acer_travelmate_2490,
429 },
430 {
431 .callback = dmi_matched,
432 .ident = "Acer Aspire 5610",
433 .matches = {
434 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
435 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
436 },
437 .driver_data = &quirk_acer_travelmate_2490,
438 },
439 {
440 .callback = dmi_matched,
441 .ident = "Acer Aspire 5630",
442 .matches = {
443 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
444 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
445 },
446 .driver_data = &quirk_acer_travelmate_2490,
447 },
448 {
449 .callback = dmi_matched,
450 .ident = "Acer Aspire 5650",
451 .matches = {
452 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
453 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
454 },
455 .driver_data = &quirk_acer_travelmate_2490,
456 },
457 {
458 .callback = dmi_matched,
459 .ident = "Acer Aspire 5680",
460 .matches = {
461 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
462 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
463 },
464 .driver_data = &quirk_acer_travelmate_2490,
465 },
466 {
467 .callback = dmi_matched,
468 .ident = "Acer Aspire 9110",
469 .matches = {
470 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
471 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
472 },
473 .driver_data = &quirk_acer_travelmate_2490,
474 },
475 {
476 .callback = dmi_matched,
477 .ident = "Acer TravelMate 2490",
478 .matches = {
479 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
480 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
481 },
482 .driver_data = &quirk_acer_travelmate_2490,
483 },
484 {
485 .callback = dmi_matched,
486 .ident = "Acer TravelMate 4200",
487 .matches = {
488 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
489 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
490 },
491 .driver_data = &quirk_acer_travelmate_2490,
492 },
493 {}
494 };
495
496 /*
497 * This quirk list is for those non-acer machines that have AMW0_GUID1
498 * but supported by acer-wmi in past days. Keeping this quirk list here
499 * is only for backward compatible. Please do not add new machine to
500 * here anymore. Those non-acer machines should be supported by
501 * appropriate wmi drivers.
502 */
503 static const struct dmi_system_id non_acer_quirks[] __initconst = {
504 {
505 .callback = dmi_matched,
506 .ident = "Fujitsu Siemens Amilo Li 1718",
507 .matches = {
508 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
509 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
510 },
511 .driver_data = &quirk_fujitsu_amilo_li_1718,
512 },
513 {
514 .callback = dmi_matched,
515 .ident = "Medion MD 98300",
516 .matches = {
517 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
518 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
519 },
520 .driver_data = &quirk_medion_md_98300,
521 },
522 {
523 .callback = dmi_matched,
524 .ident = "Lenovo Ideapad S205",
525 .matches = {
526 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
527 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
528 },
529 .driver_data = &quirk_lenovo_ideapad_s205,
530 },
531 {
532 .callback = dmi_matched,
533 .ident = "Lenovo Ideapad S205 (Brazos)",
534 .matches = {
535 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
536 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
537 },
538 .driver_data = &quirk_lenovo_ideapad_s205,
539 },
540 {
541 .callback = dmi_matched,
542 .ident = "Lenovo 3000 N200",
543 .matches = {
544 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
545 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
546 },
547 .driver_data = &quirk_fujitsu_amilo_li_1718,
548 },
549 {
550 .callback = dmi_matched,
551 .ident = "Lenovo Ideapad S205-10382JG",
552 .matches = {
553 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
555 },
556 .driver_data = &quirk_lenovo_ideapad_s205,
557 },
558 {
559 .callback = dmi_matched,
560 .ident = "Lenovo Ideapad S205-1038DPG",
561 .matches = {
562 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
564 },
565 .driver_data = &quirk_lenovo_ideapad_s205,
566 },
567 {}
568 };
569
570 static int __init
571 video_set_backlight_video_vendor(const struct dmi_system_id *d)
572 {
573 interface->capability &= ~ACER_CAP_BRIGHTNESS;
574 pr_info("Brightness must be controlled by generic video driver\n");
575 return 0;
576 }
577
578 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
579 {
580 .callback = video_set_backlight_video_vendor,
581 .ident = "Acer TravelMate 4750",
582 .matches = {
583 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
584 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
585 },
586 },
587 {
588 .callback = video_set_backlight_video_vendor,
589 .ident = "Acer Extensa 5235",
590 .matches = {
591 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
592 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
593 },
594 },
595 {
596 .callback = video_set_backlight_video_vendor,
597 .ident = "Acer TravelMate 5760",
598 .matches = {
599 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
600 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
601 },
602 },
603 {
604 .callback = video_set_backlight_video_vendor,
605 .ident = "Acer Aspire 5750",
606 .matches = {
607 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
608 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
609 },
610 },
611 {
612 .callback = video_set_backlight_video_vendor,
613 .ident = "Acer Aspire 5741",
614 .matches = {
615 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
616 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
617 },
618 },
619 {
620 /*
621 * Note no video_set_backlight_video_vendor, we must use the
622 * acer interface, as there is no native backlight interface.
623 */
624 .ident = "Acer KAV80",
625 .matches = {
626 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
627 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
628 },
629 },
630 {}
631 };
632
633 /* Find which quirks are needed for a particular vendor/ model pair */
634 static void __init find_quirks(void)
635 {
636 if (!force_series) {
637 dmi_check_system(acer_quirks);
638 dmi_check_system(non_acer_quirks);
639 } else if (force_series == 2490) {
640 quirks = &quirk_acer_travelmate_2490;
641 }
642
643 if (quirks == NULL)
644 quirks = &quirk_unknown;
645
646 set_quirks();
647 }
648
649 /*
650 * General interface convenience methods
651 */
652
653 static bool has_cap(u32 cap)
654 {
655 if ((interface->capability & cap) != 0)
656 return 1;
657
658 return 0;
659 }
660
661 /*
662 * AMW0 (V1) interface
663 */
664 struct wmab_args {
665 u32 eax;
666 u32 ebx;
667 u32 ecx;
668 u32 edx;
669 };
670
671 struct wmab_ret {
672 u32 eax;
673 u32 ebx;
674 u32 ecx;
675 u32 edx;
676 u32 eex;
677 };
678
679 static acpi_status wmab_execute(struct wmab_args *regbuf,
680 struct acpi_buffer *result)
681 {
682 struct acpi_buffer input;
683 acpi_status status;
684 input.length = sizeof(struct wmab_args);
685 input.pointer = (u8 *)regbuf;
686
687 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
688
689 return status;
690 }
691
692 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
693 {
694 int err;
695 u8 result;
696
697 switch (cap) {
698 case ACER_CAP_MAILLED:
699 switch (quirks->mailled) {
700 default:
701 err = ec_read(0xA, &result);
702 if (err)
703 return AE_ERROR;
704 *value = (result >> 7) & 0x1;
705 return AE_OK;
706 }
707 break;
708 case ACER_CAP_WIRELESS:
709 switch (quirks->wireless) {
710 case 1:
711 err = ec_read(0x7B, &result);
712 if (err)
713 return AE_ERROR;
714 *value = result & 0x1;
715 return AE_OK;
716 case 2:
717 err = ec_read(0x71, &result);
718 if (err)
719 return AE_ERROR;
720 *value = result & 0x1;
721 return AE_OK;
722 case 3:
723 err = ec_read(0x78, &result);
724 if (err)
725 return AE_ERROR;
726 *value = result & 0x1;
727 return AE_OK;
728 default:
729 err = ec_read(0xA, &result);
730 if (err)
731 return AE_ERROR;
732 *value = (result >> 2) & 0x1;
733 return AE_OK;
734 }
735 break;
736 case ACER_CAP_BLUETOOTH:
737 switch (quirks->bluetooth) {
738 default:
739 err = ec_read(0xA, &result);
740 if (err)
741 return AE_ERROR;
742 *value = (result >> 4) & 0x1;
743 return AE_OK;
744 }
745 break;
746 case ACER_CAP_BRIGHTNESS:
747 switch (quirks->brightness) {
748 default:
749 err = ec_read(0x83, &result);
750 if (err)
751 return AE_ERROR;
752 *value = result;
753 return AE_OK;
754 }
755 break;
756 default:
757 return AE_ERROR;
758 }
759 return AE_OK;
760 }
761
762 static acpi_status AMW0_set_u32(u32 value, u32 cap)
763 {
764 struct wmab_args args;
765
766 args.eax = ACER_AMW0_WRITE;
767 args.ebx = value ? (1<<8) : 0;
768 args.ecx = args.edx = 0;
769
770 switch (cap) {
771 case ACER_CAP_MAILLED:
772 if (value > 1)
773 return AE_BAD_PARAMETER;
774 args.ebx |= ACER_AMW0_MAILLED_MASK;
775 break;
776 case ACER_CAP_WIRELESS:
777 if (value > 1)
778 return AE_BAD_PARAMETER;
779 args.ebx |= ACER_AMW0_WIRELESS_MASK;
780 break;
781 case ACER_CAP_BLUETOOTH:
782 if (value > 1)
783 return AE_BAD_PARAMETER;
784 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
785 break;
786 case ACER_CAP_BRIGHTNESS:
787 if (value > max_brightness)
788 return AE_BAD_PARAMETER;
789 switch (quirks->brightness) {
790 default:
791 return ec_write(0x83, value);
792 break;
793 }
794 default:
795 return AE_ERROR;
796 }
797
798 /* Actually do the set */
799 return wmab_execute(&args, NULL);
800 }
801
802 static acpi_status __init AMW0_find_mailled(void)
803 {
804 struct wmab_args args;
805 struct wmab_ret ret;
806 acpi_status status = AE_OK;
807 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
808 union acpi_object *obj;
809
810 args.eax = 0x86;
811 args.ebx = args.ecx = args.edx = 0;
812
813 status = wmab_execute(&args, &out);
814 if (ACPI_FAILURE(status))
815 return status;
816
817 obj = (union acpi_object *) out.pointer;
818 if (obj && obj->type == ACPI_TYPE_BUFFER &&
819 obj->buffer.length == sizeof(struct wmab_ret)) {
820 ret = *((struct wmab_ret *) obj->buffer.pointer);
821 } else {
822 kfree(out.pointer);
823 return AE_ERROR;
824 }
825
826 if (ret.eex & 0x1)
827 interface->capability |= ACER_CAP_MAILLED;
828
829 kfree(out.pointer);
830
831 return AE_OK;
832 }
833
834 static const struct acpi_device_id norfkill_ids[] __initconst = {
835 { "VPC2004", 0},
836 { "IBM0068", 0},
837 { "LEN0068", 0},
838 { "SNY5001", 0}, /* sony-laptop in charge */
839 { "HPQ6601", 0},
840 { "", 0},
841 };
842
843 static int __init AMW0_set_cap_acpi_check_device(void)
844 {
845 const struct acpi_device_id *id;
846
847 for (id = norfkill_ids; id->id[0]; id++)
848 if (acpi_dev_found(id->id))
849 return true;
850
851 return false;
852 }
853
854 static acpi_status __init AMW0_set_capabilities(void)
855 {
856 struct wmab_args args;
857 struct wmab_ret ret;
858 acpi_status status;
859 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
860 union acpi_object *obj;
861
862 /*
863 * On laptops with this strange GUID (non Acer), normal probing doesn't
864 * work.
865 */
866 if (wmi_has_guid(AMW0_GUID2)) {
867 if ((quirks != &quirk_unknown) ||
868 !AMW0_set_cap_acpi_check_device())
869 interface->capability |= ACER_CAP_WIRELESS;
870 return AE_OK;
871 }
872
873 args.eax = ACER_AMW0_WRITE;
874 args.ecx = args.edx = 0;
875
876 args.ebx = 0xa2 << 8;
877 args.ebx |= ACER_AMW0_WIRELESS_MASK;
878
879 status = wmab_execute(&args, &out);
880 if (ACPI_FAILURE(status))
881 return status;
882
883 obj = out.pointer;
884 if (obj && obj->type == ACPI_TYPE_BUFFER &&
885 obj->buffer.length == sizeof(struct wmab_ret)) {
886 ret = *((struct wmab_ret *) obj->buffer.pointer);
887 } else {
888 status = AE_ERROR;
889 goto out;
890 }
891
892 if (ret.eax & 0x1)
893 interface->capability |= ACER_CAP_WIRELESS;
894
895 args.ebx = 2 << 8;
896 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
897
898 /*
899 * It's ok to use existing buffer for next wmab_execute call.
900 * But we need to kfree(out.pointer) if next wmab_execute fail.
901 */
902 status = wmab_execute(&args, &out);
903 if (ACPI_FAILURE(status))
904 goto out;
905
906 obj = (union acpi_object *) out.pointer;
907 if (obj && obj->type == ACPI_TYPE_BUFFER
908 && obj->buffer.length == sizeof(struct wmab_ret)) {
909 ret = *((struct wmab_ret *) obj->buffer.pointer);
910 } else {
911 status = AE_ERROR;
912 goto out;
913 }
914
915 if (ret.eax & 0x1)
916 interface->capability |= ACER_CAP_BLUETOOTH;
917
918 /*
919 * This appears to be safe to enable, since all Wistron based laptops
920 * appear to use the same EC register for brightness, even if they
921 * differ for wireless, etc
922 */
923 if (quirks->brightness >= 0)
924 interface->capability |= ACER_CAP_BRIGHTNESS;
925
926 status = AE_OK;
927 out:
928 kfree(out.pointer);
929 return status;
930 }
931
932 static struct wmi_interface AMW0_interface = {
933 .type = ACER_AMW0,
934 };
935
936 static struct wmi_interface AMW0_V2_interface = {
937 .type = ACER_AMW0_V2,
938 };
939
940 /*
941 * New interface (The WMID interface)
942 */
943 static acpi_status
944 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
945 {
946 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
947 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
948 union acpi_object *obj;
949 u32 tmp = 0;
950 acpi_status status;
951
952 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
953
954 if (ACPI_FAILURE(status))
955 return status;
956
957 obj = (union acpi_object *) result.pointer;
958 if (obj) {
959 if (obj->type == ACPI_TYPE_BUFFER &&
960 (obj->buffer.length == sizeof(u32) ||
961 obj->buffer.length == sizeof(u64))) {
962 tmp = *((u32 *) obj->buffer.pointer);
963 } else if (obj->type == ACPI_TYPE_INTEGER) {
964 tmp = (u32) obj->integer.value;
965 }
966 }
967
968 if (out)
969 *out = tmp;
970
971 kfree(result.pointer);
972
973 return status;
974 }
975
976 static acpi_status WMID_get_u32(u32 *value, u32 cap)
977 {
978 acpi_status status;
979 u8 tmp;
980 u32 result, method_id = 0;
981
982 switch (cap) {
983 case ACER_CAP_WIRELESS:
984 method_id = ACER_WMID_GET_WIRELESS_METHODID;
985 break;
986 case ACER_CAP_BLUETOOTH:
987 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
988 break;
989 case ACER_CAP_BRIGHTNESS:
990 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
991 break;
992 case ACER_CAP_THREEG:
993 method_id = ACER_WMID_GET_THREEG_METHODID;
994 break;
995 case ACER_CAP_MAILLED:
996 if (quirks->mailled == 1) {
997 ec_read(0x9f, &tmp);
998 *value = tmp & 0x1;
999 return 0;
1000 }
1001 default:
1002 return AE_ERROR;
1003 }
1004 status = WMI_execute_u32(method_id, 0, &result);
1005
1006 if (ACPI_SUCCESS(status))
1007 *value = (u8)result;
1008
1009 return status;
1010 }
1011
1012 static acpi_status WMID_set_u32(u32 value, u32 cap)
1013 {
1014 u32 method_id = 0;
1015 char param;
1016
1017 switch (cap) {
1018 case ACER_CAP_BRIGHTNESS:
1019 if (value > max_brightness)
1020 return AE_BAD_PARAMETER;
1021 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1022 break;
1023 case ACER_CAP_WIRELESS:
1024 if (value > 1)
1025 return AE_BAD_PARAMETER;
1026 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1027 break;
1028 case ACER_CAP_BLUETOOTH:
1029 if (value > 1)
1030 return AE_BAD_PARAMETER;
1031 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1032 break;
1033 case ACER_CAP_THREEG:
1034 if (value > 1)
1035 return AE_BAD_PARAMETER;
1036 method_id = ACER_WMID_SET_THREEG_METHODID;
1037 break;
1038 case ACER_CAP_MAILLED:
1039 if (value > 1)
1040 return AE_BAD_PARAMETER;
1041 if (quirks->mailled == 1) {
1042 param = value ? 0x92 : 0x93;
1043 i8042_lock_chip();
1044 i8042_command(&param, 0x1059);
1045 i8042_unlock_chip();
1046 return 0;
1047 }
1048 break;
1049 default:
1050 return AE_ERROR;
1051 }
1052 return WMI_execute_u32(method_id, (u32)value, NULL);
1053 }
1054
1055 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1056 {
1057 struct wmid3_gds_return_value return_value;
1058 acpi_status status;
1059 union acpi_object *obj;
1060 struct wmid3_gds_get_input_param params = {
1061 .function_num = 0x1,
1062 .hotkey_number = commun_fn_key_number,
1063 .devices = device,
1064 };
1065 struct acpi_buffer input = {
1066 sizeof(struct wmid3_gds_get_input_param),
1067 &params
1068 };
1069 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1070
1071 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1072 if (ACPI_FAILURE(status))
1073 return status;
1074
1075 obj = output.pointer;
1076
1077 if (!obj)
1078 return AE_ERROR;
1079 else if (obj->type != ACPI_TYPE_BUFFER) {
1080 kfree(obj);
1081 return AE_ERROR;
1082 }
1083 if (obj->buffer.length != 8) {
1084 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1085 kfree(obj);
1086 return AE_ERROR;
1087 }
1088
1089 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1090 kfree(obj);
1091
1092 if (return_value.error_code || return_value.ec_return_value)
1093 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1094 device,
1095 return_value.error_code,
1096 return_value.ec_return_value);
1097 else
1098 *value = !!(return_value.devices & device);
1099
1100 return status;
1101 }
1102
1103 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1104 {
1105 u16 device;
1106
1107 switch (cap) {
1108 case ACER_CAP_WIRELESS:
1109 device = ACER_WMID3_GDS_WIRELESS;
1110 break;
1111 case ACER_CAP_BLUETOOTH:
1112 device = ACER_WMID3_GDS_BLUETOOTH;
1113 break;
1114 case ACER_CAP_THREEG:
1115 device = ACER_WMID3_GDS_THREEG;
1116 break;
1117 default:
1118 return AE_ERROR;
1119 }
1120 return wmid3_get_device_status(value, device);
1121 }
1122
1123 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1124 {
1125 struct wmid3_gds_return_value return_value;
1126 acpi_status status;
1127 union acpi_object *obj;
1128 u16 devices;
1129 struct wmid3_gds_get_input_param get_params = {
1130 .function_num = 0x1,
1131 .hotkey_number = commun_fn_key_number,
1132 .devices = commun_func_bitmap,
1133 };
1134 struct acpi_buffer get_input = {
1135 sizeof(struct wmid3_gds_get_input_param),
1136 &get_params
1137 };
1138 struct wmid3_gds_set_input_param set_params = {
1139 .function_num = 0x2,
1140 .hotkey_number = commun_fn_key_number,
1141 .devices = commun_func_bitmap,
1142 };
1143 struct acpi_buffer set_input = {
1144 sizeof(struct wmid3_gds_set_input_param),
1145 &set_params
1146 };
1147 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1148 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1149
1150 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1151 if (ACPI_FAILURE(status))
1152 return status;
1153
1154 obj = output.pointer;
1155
1156 if (!obj)
1157 return AE_ERROR;
1158 else if (obj->type != ACPI_TYPE_BUFFER) {
1159 kfree(obj);
1160 return AE_ERROR;
1161 }
1162 if (obj->buffer.length != 8) {
1163 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1164 kfree(obj);
1165 return AE_ERROR;
1166 }
1167
1168 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1169 kfree(obj);
1170
1171 if (return_value.error_code || return_value.ec_return_value) {
1172 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1173 return_value.error_code,
1174 return_value.ec_return_value);
1175 return status;
1176 }
1177
1178 devices = return_value.devices;
1179 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1180
1181 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1182 if (ACPI_FAILURE(status))
1183 return status;
1184
1185 obj = output2.pointer;
1186
1187 if (!obj)
1188 return AE_ERROR;
1189 else if (obj->type != ACPI_TYPE_BUFFER) {
1190 kfree(obj);
1191 return AE_ERROR;
1192 }
1193 if (obj->buffer.length != 4) {
1194 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1195 kfree(obj);
1196 return AE_ERROR;
1197 }
1198
1199 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1200 kfree(obj);
1201
1202 if (return_value.error_code || return_value.ec_return_value)
1203 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1204 return_value.error_code,
1205 return_value.ec_return_value);
1206
1207 return status;
1208 }
1209
1210 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1211 {
1212 u16 device;
1213
1214 switch (cap) {
1215 case ACER_CAP_WIRELESS:
1216 device = ACER_WMID3_GDS_WIRELESS;
1217 break;
1218 case ACER_CAP_BLUETOOTH:
1219 device = ACER_WMID3_GDS_BLUETOOTH;
1220 break;
1221 case ACER_CAP_THREEG:
1222 device = ACER_WMID3_GDS_THREEG;
1223 break;
1224 default:
1225 return AE_ERROR;
1226 }
1227 return wmid3_set_device_status(value, device);
1228 }
1229
1230 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1231 {
1232 struct hotkey_function_type_aa *type_aa;
1233
1234 /* We are looking for OEM-specific Type AAh */
1235 if (header->type != 0xAA)
1236 return;
1237
1238 has_type_aa = true;
1239 type_aa = (struct hotkey_function_type_aa *) header;
1240
1241 pr_info("Function bitmap for Communication Button: 0x%x\n",
1242 type_aa->commun_func_bitmap);
1243 commun_func_bitmap = type_aa->commun_func_bitmap;
1244
1245 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1246 interface->capability |= ACER_CAP_WIRELESS;
1247 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1248 interface->capability |= ACER_CAP_THREEG;
1249 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1250 interface->capability |= ACER_CAP_BLUETOOTH;
1251
1252 commun_fn_key_number = type_aa->commun_fn_key_number;
1253 }
1254
1255 static acpi_status __init WMID_set_capabilities(void)
1256 {
1257 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1258 union acpi_object *obj;
1259 acpi_status status;
1260 u32 devices;
1261
1262 status = wmi_query_block(WMID_GUID2, 1, &out);
1263 if (ACPI_FAILURE(status))
1264 return status;
1265
1266 obj = (union acpi_object *) out.pointer;
1267 if (obj) {
1268 if (obj->type == ACPI_TYPE_BUFFER &&
1269 (obj->buffer.length == sizeof(u32) ||
1270 obj->buffer.length == sizeof(u64))) {
1271 devices = *((u32 *) obj->buffer.pointer);
1272 } else if (obj->type == ACPI_TYPE_INTEGER) {
1273 devices = (u32) obj->integer.value;
1274 } else {
1275 kfree(out.pointer);
1276 return AE_ERROR;
1277 }
1278 } else {
1279 kfree(out.pointer);
1280 return AE_ERROR;
1281 }
1282
1283 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1284 if (devices & 0x07)
1285 interface->capability |= ACER_CAP_WIRELESS;
1286 if (devices & 0x40)
1287 interface->capability |= ACER_CAP_THREEG;
1288 if (devices & 0x10)
1289 interface->capability |= ACER_CAP_BLUETOOTH;
1290
1291 if (!(devices & 0x20))
1292 max_brightness = 0x9;
1293
1294 kfree(out.pointer);
1295 return status;
1296 }
1297
1298 static struct wmi_interface wmid_interface = {
1299 .type = ACER_WMID,
1300 };
1301
1302 static struct wmi_interface wmid_v2_interface = {
1303 .type = ACER_WMID_v2,
1304 };
1305
1306 /*
1307 * Generic Device (interface-independent)
1308 */
1309
1310 static acpi_status get_u32(u32 *value, u32 cap)
1311 {
1312 acpi_status status = AE_ERROR;
1313
1314 switch (interface->type) {
1315 case ACER_AMW0:
1316 status = AMW0_get_u32(value, cap);
1317 break;
1318 case ACER_AMW0_V2:
1319 if (cap == ACER_CAP_MAILLED) {
1320 status = AMW0_get_u32(value, cap);
1321 break;
1322 }
1323 case ACER_WMID:
1324 status = WMID_get_u32(value, cap);
1325 break;
1326 case ACER_WMID_v2:
1327 if (cap & (ACER_CAP_WIRELESS |
1328 ACER_CAP_BLUETOOTH |
1329 ACER_CAP_THREEG))
1330 status = wmid_v2_get_u32(value, cap);
1331 else if (wmi_has_guid(WMID_GUID2))
1332 status = WMID_get_u32(value, cap);
1333 break;
1334 }
1335
1336 return status;
1337 }
1338
1339 static acpi_status set_u32(u32 value, u32 cap)
1340 {
1341 acpi_status status;
1342
1343 if (interface->capability & cap) {
1344 switch (interface->type) {
1345 case ACER_AMW0:
1346 return AMW0_set_u32(value, cap);
1347 case ACER_AMW0_V2:
1348 if (cap == ACER_CAP_MAILLED)
1349 return AMW0_set_u32(value, cap);
1350
1351 /*
1352 * On some models, some WMID methods don't toggle
1353 * properly. For those cases, we want to run the AMW0
1354 * method afterwards to be certain we've really toggled
1355 * the device state.
1356 */
1357 if (cap == ACER_CAP_WIRELESS ||
1358 cap == ACER_CAP_BLUETOOTH) {
1359 status = WMID_set_u32(value, cap);
1360 if (ACPI_FAILURE(status))
1361 return status;
1362
1363 return AMW0_set_u32(value, cap);
1364 }
1365 case ACER_WMID:
1366 return WMID_set_u32(value, cap);
1367 case ACER_WMID_v2:
1368 if (cap & (ACER_CAP_WIRELESS |
1369 ACER_CAP_BLUETOOTH |
1370 ACER_CAP_THREEG))
1371 return wmid_v2_set_u32(value, cap);
1372 else if (wmi_has_guid(WMID_GUID2))
1373 return WMID_set_u32(value, cap);
1374 default:
1375 return AE_BAD_PARAMETER;
1376 }
1377 }
1378 return AE_BAD_PARAMETER;
1379 }
1380
1381 static void __init acer_commandline_init(void)
1382 {
1383 /*
1384 * These will all fail silently if the value given is invalid, or the
1385 * capability isn't available on the given interface
1386 */
1387 if (mailled >= 0)
1388 set_u32(mailled, ACER_CAP_MAILLED);
1389 if (!has_type_aa && threeg >= 0)
1390 set_u32(threeg, ACER_CAP_THREEG);
1391 if (brightness >= 0)
1392 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1393 }
1394
1395 /*
1396 * LED device (Mail LED only, no other LEDs known yet)
1397 */
1398 static void mail_led_set(struct led_classdev *led_cdev,
1399 enum led_brightness value)
1400 {
1401 set_u32(value, ACER_CAP_MAILLED);
1402 }
1403
1404 static struct led_classdev mail_led = {
1405 .name = "acer-wmi::mail",
1406 .brightness_set = mail_led_set,
1407 };
1408
1409 static int acer_led_init(struct device *dev)
1410 {
1411 return led_classdev_register(dev, &mail_led);
1412 }
1413
1414 static void acer_led_exit(void)
1415 {
1416 set_u32(LED_OFF, ACER_CAP_MAILLED);
1417 led_classdev_unregister(&mail_led);
1418 }
1419
1420 /*
1421 * Backlight device
1422 */
1423 static struct backlight_device *acer_backlight_device;
1424
1425 static int read_brightness(struct backlight_device *bd)
1426 {
1427 u32 value;
1428 get_u32(&value, ACER_CAP_BRIGHTNESS);
1429 return value;
1430 }
1431
1432 static int update_bl_status(struct backlight_device *bd)
1433 {
1434 int intensity = bd->props.brightness;
1435
1436 if (bd->props.power != FB_BLANK_UNBLANK)
1437 intensity = 0;
1438 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1439 intensity = 0;
1440
1441 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1442
1443 return 0;
1444 }
1445
1446 static const struct backlight_ops acer_bl_ops = {
1447 .get_brightness = read_brightness,
1448 .update_status = update_bl_status,
1449 };
1450
1451 static int acer_backlight_init(struct device *dev)
1452 {
1453 struct backlight_properties props;
1454 struct backlight_device *bd;
1455
1456 memset(&props, 0, sizeof(struct backlight_properties));
1457 props.type = BACKLIGHT_PLATFORM;
1458 props.max_brightness = max_brightness;
1459 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1460 &props);
1461 if (IS_ERR(bd)) {
1462 pr_err("Could not register Acer backlight device\n");
1463 acer_backlight_device = NULL;
1464 return PTR_ERR(bd);
1465 }
1466
1467 acer_backlight_device = bd;
1468
1469 bd->props.power = FB_BLANK_UNBLANK;
1470 bd->props.brightness = read_brightness(bd);
1471 backlight_update_status(bd);
1472 return 0;
1473 }
1474
1475 static void acer_backlight_exit(void)
1476 {
1477 backlight_device_unregister(acer_backlight_device);
1478 }
1479
1480 /*
1481 * Accelerometer device
1482 */
1483 static acpi_handle gsensor_handle;
1484
1485 static int acer_gsensor_init(void)
1486 {
1487 acpi_status status;
1488 struct acpi_buffer output;
1489 union acpi_object out_obj;
1490
1491 output.length = sizeof(out_obj);
1492 output.pointer = &out_obj;
1493 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1494 if (ACPI_FAILURE(status))
1495 return -1;
1496
1497 return 0;
1498 }
1499
1500 static int acer_gsensor_open(struct input_dev *input)
1501 {
1502 return acer_gsensor_init();
1503 }
1504
1505 static int acer_gsensor_event(void)
1506 {
1507 acpi_status status;
1508 struct acpi_buffer output;
1509 union acpi_object out_obj[5];
1510
1511 if (!has_cap(ACER_CAP_ACCEL))
1512 return -1;
1513
1514 output.length = sizeof(out_obj);
1515 output.pointer = out_obj;
1516
1517 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1518 if (ACPI_FAILURE(status))
1519 return -1;
1520
1521 if (out_obj->package.count != 4)
1522 return -1;
1523
1524 input_report_abs(acer_wmi_accel_dev, ABS_X,
1525 (s16)out_obj->package.elements[0].integer.value);
1526 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1527 (s16)out_obj->package.elements[1].integer.value);
1528 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1529 (s16)out_obj->package.elements[2].integer.value);
1530 input_sync(acer_wmi_accel_dev);
1531 return 0;
1532 }
1533
1534 /*
1535 * Rfkill devices
1536 */
1537 static void acer_rfkill_update(struct work_struct *ignored);
1538 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1539 static void acer_rfkill_update(struct work_struct *ignored)
1540 {
1541 u32 state;
1542 acpi_status status;
1543
1544 if (has_cap(ACER_CAP_WIRELESS)) {
1545 status = get_u32(&state, ACER_CAP_WIRELESS);
1546 if (ACPI_SUCCESS(status)) {
1547 if (quirks->wireless == 3)
1548 rfkill_set_hw_state(wireless_rfkill, !state);
1549 else
1550 rfkill_set_sw_state(wireless_rfkill, !state);
1551 }
1552 }
1553
1554 if (has_cap(ACER_CAP_BLUETOOTH)) {
1555 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1556 if (ACPI_SUCCESS(status))
1557 rfkill_set_sw_state(bluetooth_rfkill, !state);
1558 }
1559
1560 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1561 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1562 if (ACPI_SUCCESS(status))
1563 rfkill_set_sw_state(threeg_rfkill, !state);
1564 }
1565
1566 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1567 }
1568
1569 static int acer_rfkill_set(void *data, bool blocked)
1570 {
1571 acpi_status status;
1572 u32 cap = (unsigned long)data;
1573
1574 if (rfkill_inited) {
1575 status = set_u32(!blocked, cap);
1576 if (ACPI_FAILURE(status))
1577 return -ENODEV;
1578 }
1579
1580 return 0;
1581 }
1582
1583 static const struct rfkill_ops acer_rfkill_ops = {
1584 .set_block = acer_rfkill_set,
1585 };
1586
1587 static struct rfkill *acer_rfkill_register(struct device *dev,
1588 enum rfkill_type type,
1589 char *name, u32 cap)
1590 {
1591 int err;
1592 struct rfkill *rfkill_dev;
1593 u32 state;
1594 acpi_status status;
1595
1596 rfkill_dev = rfkill_alloc(name, dev, type,
1597 &acer_rfkill_ops,
1598 (void *)(unsigned long)cap);
1599 if (!rfkill_dev)
1600 return ERR_PTR(-ENOMEM);
1601
1602 status = get_u32(&state, cap);
1603
1604 err = rfkill_register(rfkill_dev);
1605 if (err) {
1606 rfkill_destroy(rfkill_dev);
1607 return ERR_PTR(err);
1608 }
1609
1610 if (ACPI_SUCCESS(status))
1611 rfkill_set_sw_state(rfkill_dev, !state);
1612
1613 return rfkill_dev;
1614 }
1615
1616 static int acer_rfkill_init(struct device *dev)
1617 {
1618 int err;
1619
1620 if (has_cap(ACER_CAP_WIRELESS)) {
1621 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1622 "acer-wireless", ACER_CAP_WIRELESS);
1623 if (IS_ERR(wireless_rfkill)) {
1624 err = PTR_ERR(wireless_rfkill);
1625 goto error_wireless;
1626 }
1627 }
1628
1629 if (has_cap(ACER_CAP_BLUETOOTH)) {
1630 bluetooth_rfkill = acer_rfkill_register(dev,
1631 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1632 ACER_CAP_BLUETOOTH);
1633 if (IS_ERR(bluetooth_rfkill)) {
1634 err = PTR_ERR(bluetooth_rfkill);
1635 goto error_bluetooth;
1636 }
1637 }
1638
1639 if (has_cap(ACER_CAP_THREEG)) {
1640 threeg_rfkill = acer_rfkill_register(dev,
1641 RFKILL_TYPE_WWAN, "acer-threeg",
1642 ACER_CAP_THREEG);
1643 if (IS_ERR(threeg_rfkill)) {
1644 err = PTR_ERR(threeg_rfkill);
1645 goto error_threeg;
1646 }
1647 }
1648
1649 rfkill_inited = true;
1650
1651 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1652 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1653 schedule_delayed_work(&acer_rfkill_work,
1654 round_jiffies_relative(HZ));
1655
1656 return 0;
1657
1658 error_threeg:
1659 if (has_cap(ACER_CAP_BLUETOOTH)) {
1660 rfkill_unregister(bluetooth_rfkill);
1661 rfkill_destroy(bluetooth_rfkill);
1662 }
1663 error_bluetooth:
1664 if (has_cap(ACER_CAP_WIRELESS)) {
1665 rfkill_unregister(wireless_rfkill);
1666 rfkill_destroy(wireless_rfkill);
1667 }
1668 error_wireless:
1669 return err;
1670 }
1671
1672 static void acer_rfkill_exit(void)
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 cancel_delayed_work_sync(&acer_rfkill_work);
1677
1678 if (has_cap(ACER_CAP_WIRELESS)) {
1679 rfkill_unregister(wireless_rfkill);
1680 rfkill_destroy(wireless_rfkill);
1681 }
1682
1683 if (has_cap(ACER_CAP_BLUETOOTH)) {
1684 rfkill_unregister(bluetooth_rfkill);
1685 rfkill_destroy(bluetooth_rfkill);
1686 }
1687
1688 if (has_cap(ACER_CAP_THREEG)) {
1689 rfkill_unregister(threeg_rfkill);
1690 rfkill_destroy(threeg_rfkill);
1691 }
1692 return;
1693 }
1694
1695 static void acer_wmi_notify(u32 value, void *context)
1696 {
1697 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1698 union acpi_object *obj;
1699 struct event_return_value return_value;
1700 acpi_status status;
1701 u16 device_state;
1702 const struct key_entry *key;
1703 u32 scancode;
1704
1705 status = wmi_get_event_data(value, &response);
1706 if (status != AE_OK) {
1707 pr_warn("bad event status 0x%x\n", status);
1708 return;
1709 }
1710
1711 obj = (union acpi_object *)response.pointer;
1712
1713 if (!obj)
1714 return;
1715 if (obj->type != ACPI_TYPE_BUFFER) {
1716 pr_warn("Unknown response received %d\n", obj->type);
1717 kfree(obj);
1718 return;
1719 }
1720 if (obj->buffer.length != 8) {
1721 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1722 kfree(obj);
1723 return;
1724 }
1725
1726 return_value = *((struct event_return_value *)obj->buffer.pointer);
1727 kfree(obj);
1728
1729 switch (return_value.function) {
1730 case WMID_HOTKEY_EVENT:
1731 device_state = return_value.device_state;
1732 pr_debug("device state: 0x%x\n", device_state);
1733
1734 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1735 return_value.key_num);
1736 if (!key) {
1737 pr_warn("Unknown key number - 0x%x\n",
1738 return_value.key_num);
1739 } else {
1740 scancode = return_value.key_num;
1741 switch (key->keycode) {
1742 case KEY_WLAN:
1743 case KEY_BLUETOOTH:
1744 if (has_cap(ACER_CAP_WIRELESS))
1745 rfkill_set_sw_state(wireless_rfkill,
1746 !(device_state & ACER_WMID3_GDS_WIRELESS));
1747 if (has_cap(ACER_CAP_THREEG))
1748 rfkill_set_sw_state(threeg_rfkill,
1749 !(device_state & ACER_WMID3_GDS_THREEG));
1750 if (has_cap(ACER_CAP_BLUETOOTH))
1751 rfkill_set_sw_state(bluetooth_rfkill,
1752 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1753 break;
1754 case KEY_TOUCHPAD_TOGGLE:
1755 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1756 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1757 }
1758 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1759 }
1760 break;
1761 case WMID_ACCEL_EVENT:
1762 acer_gsensor_event();
1763 break;
1764 default:
1765 pr_warn("Unknown function number - %d - %d\n",
1766 return_value.function, return_value.key_num);
1767 break;
1768 }
1769 }
1770
1771 static acpi_status __init
1772 wmid3_set_lm_mode(struct lm_input_params *params,
1773 struct lm_return_value *return_value)
1774 {
1775 acpi_status status;
1776 union acpi_object *obj;
1777
1778 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1779 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1780
1781 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1782 if (ACPI_FAILURE(status))
1783 return status;
1784
1785 obj = output.pointer;
1786
1787 if (!obj)
1788 return AE_ERROR;
1789 else if (obj->type != ACPI_TYPE_BUFFER) {
1790 kfree(obj);
1791 return AE_ERROR;
1792 }
1793 if (obj->buffer.length != 4) {
1794 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1795 kfree(obj);
1796 return AE_ERROR;
1797 }
1798
1799 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1800 kfree(obj);
1801
1802 return status;
1803 }
1804
1805 static int __init acer_wmi_enable_ec_raw(void)
1806 {
1807 struct lm_return_value return_value;
1808 acpi_status status;
1809 struct lm_input_params params = {
1810 .function_num = 0x1,
1811 .commun_devices = 0xFFFF,
1812 .devices = 0xFFFF,
1813 .lm_status = 0x00, /* Launch Manager Deactive */
1814 };
1815
1816 status = wmid3_set_lm_mode(&params, &return_value);
1817
1818 if (return_value.error_code || return_value.ec_return_value)
1819 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1820 return_value.error_code,
1821 return_value.ec_return_value);
1822 else
1823 pr_info("Enabled EC raw mode\n");
1824
1825 return status;
1826 }
1827
1828 static int __init acer_wmi_enable_lm(void)
1829 {
1830 struct lm_return_value return_value;
1831 acpi_status status;
1832 struct lm_input_params params = {
1833 .function_num = 0x1,
1834 .commun_devices = 0xFFFF,
1835 .devices = 0xFFFF,
1836 .lm_status = 0x01, /* Launch Manager Active */
1837 };
1838
1839 status = wmid3_set_lm_mode(&params, &return_value);
1840
1841 if (return_value.error_code || return_value.ec_return_value)
1842 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1843 return_value.error_code,
1844 return_value.ec_return_value);
1845
1846 return status;
1847 }
1848
1849 #define ACER_WMID_ACCEL_HID "BST0001"
1850
1851 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1852 void *ctx, void **retval)
1853 {
1854 struct acpi_device *dev;
1855
1856 if (!strcmp(ctx, "SENR")) {
1857 if (acpi_bus_get_device(ah, &dev))
1858 return AE_OK;
1859 if (!strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
1860 return AE_OK;
1861 } else
1862 return AE_OK;
1863
1864 *(acpi_handle *)retval = ah;
1865
1866 return AE_CTRL_TERMINATE;
1867 }
1868
1869 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1870 acpi_handle *ah)
1871 {
1872 acpi_status status;
1873 acpi_handle handle;
1874
1875 BUG_ON(!name || !ah);
1876
1877 handle = NULL;
1878 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1879 (void *)name, &handle);
1880
1881 if (ACPI_SUCCESS(status)) {
1882 *ah = handle;
1883 return 0;
1884 } else {
1885 return -ENODEV;
1886 }
1887 }
1888
1889 static int __init acer_wmi_accel_setup(void)
1890 {
1891 int err;
1892
1893 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
1894 if (err)
1895 return err;
1896
1897 interface->capability |= ACER_CAP_ACCEL;
1898
1899 acer_wmi_accel_dev = input_allocate_device();
1900 if (!acer_wmi_accel_dev)
1901 return -ENOMEM;
1902
1903 acer_wmi_accel_dev->open = acer_gsensor_open;
1904
1905 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1906 acer_wmi_accel_dev->phys = "wmi/input1";
1907 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1908 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1909 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1910 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1911 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1912
1913 err = input_register_device(acer_wmi_accel_dev);
1914 if (err)
1915 goto err_free_dev;
1916
1917 return 0;
1918
1919 err_free_dev:
1920 input_free_device(acer_wmi_accel_dev);
1921 return err;
1922 }
1923
1924 static void acer_wmi_accel_destroy(void)
1925 {
1926 input_unregister_device(acer_wmi_accel_dev);
1927 }
1928
1929 static int __init acer_wmi_input_setup(void)
1930 {
1931 acpi_status status;
1932 int err;
1933
1934 acer_wmi_input_dev = input_allocate_device();
1935 if (!acer_wmi_input_dev)
1936 return -ENOMEM;
1937
1938 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1939 acer_wmi_input_dev->phys = "wmi/input0";
1940 acer_wmi_input_dev->id.bustype = BUS_HOST;
1941
1942 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1943 if (err)
1944 goto err_free_dev;
1945
1946 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1947 acer_wmi_notify, NULL);
1948 if (ACPI_FAILURE(status)) {
1949 err = -EIO;
1950 goto err_free_keymap;
1951 }
1952
1953 err = input_register_device(acer_wmi_input_dev);
1954 if (err)
1955 goto err_uninstall_notifier;
1956
1957 return 0;
1958
1959 err_uninstall_notifier:
1960 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1961 err_free_keymap:
1962 sparse_keymap_free(acer_wmi_input_dev);
1963 err_free_dev:
1964 input_free_device(acer_wmi_input_dev);
1965 return err;
1966 }
1967
1968 static void acer_wmi_input_destroy(void)
1969 {
1970 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1971 sparse_keymap_free(acer_wmi_input_dev);
1972 input_unregister_device(acer_wmi_input_dev);
1973 }
1974
1975 /*
1976 * debugfs functions
1977 */
1978 static u32 get_wmid_devices(void)
1979 {
1980 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1981 union acpi_object *obj;
1982 acpi_status status;
1983 u32 devices = 0;
1984
1985 status = wmi_query_block(WMID_GUID2, 1, &out);
1986 if (ACPI_FAILURE(status))
1987 return 0;
1988
1989 obj = (union acpi_object *) out.pointer;
1990 if (obj) {
1991 if (obj->type == ACPI_TYPE_BUFFER &&
1992 (obj->buffer.length == sizeof(u32) ||
1993 obj->buffer.length == sizeof(u64))) {
1994 devices = *((u32 *) obj->buffer.pointer);
1995 } else if (obj->type == ACPI_TYPE_INTEGER) {
1996 devices = (u32) obj->integer.value;
1997 }
1998 }
1999
2000 kfree(out.pointer);
2001 return devices;
2002 }
2003
2004 /*
2005 * Platform device
2006 */
2007 static int acer_platform_probe(struct platform_device *device)
2008 {
2009 int err;
2010
2011 if (has_cap(ACER_CAP_MAILLED)) {
2012 err = acer_led_init(&device->dev);
2013 if (err)
2014 goto error_mailled;
2015 }
2016
2017 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2018 err = acer_backlight_init(&device->dev);
2019 if (err)
2020 goto error_brightness;
2021 }
2022
2023 err = acer_rfkill_init(&device->dev);
2024 if (err)
2025 goto error_rfkill;
2026
2027 return err;
2028
2029 error_rfkill:
2030 if (has_cap(ACER_CAP_BRIGHTNESS))
2031 acer_backlight_exit();
2032 error_brightness:
2033 if (has_cap(ACER_CAP_MAILLED))
2034 acer_led_exit();
2035 error_mailled:
2036 return err;
2037 }
2038
2039 static int acer_platform_remove(struct platform_device *device)
2040 {
2041 if (has_cap(ACER_CAP_MAILLED))
2042 acer_led_exit();
2043 if (has_cap(ACER_CAP_BRIGHTNESS))
2044 acer_backlight_exit();
2045
2046 acer_rfkill_exit();
2047 return 0;
2048 }
2049
2050 #ifdef CONFIG_PM_SLEEP
2051 static int acer_suspend(struct device *dev)
2052 {
2053 u32 value;
2054 struct acer_data *data = &interface->data;
2055
2056 if (!data)
2057 return -ENOMEM;
2058
2059 if (has_cap(ACER_CAP_MAILLED)) {
2060 get_u32(&value, ACER_CAP_MAILLED);
2061 set_u32(LED_OFF, ACER_CAP_MAILLED);
2062 data->mailled = value;
2063 }
2064
2065 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2066 get_u32(&value, ACER_CAP_BRIGHTNESS);
2067 data->brightness = value;
2068 }
2069
2070 return 0;
2071 }
2072
2073 static int acer_resume(struct device *dev)
2074 {
2075 struct acer_data *data = &interface->data;
2076
2077 if (!data)
2078 return -ENOMEM;
2079
2080 if (has_cap(ACER_CAP_MAILLED))
2081 set_u32(data->mailled, ACER_CAP_MAILLED);
2082
2083 if (has_cap(ACER_CAP_BRIGHTNESS))
2084 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2085
2086 if (has_cap(ACER_CAP_ACCEL))
2087 acer_gsensor_init();
2088
2089 return 0;
2090 }
2091 #else
2092 #define acer_suspend NULL
2093 #define acer_resume NULL
2094 #endif
2095
2096 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2097
2098 static void acer_platform_shutdown(struct platform_device *device)
2099 {
2100 struct acer_data *data = &interface->data;
2101
2102 if (!data)
2103 return;
2104
2105 if (has_cap(ACER_CAP_MAILLED))
2106 set_u32(LED_OFF, ACER_CAP_MAILLED);
2107 }
2108
2109 static struct platform_driver acer_platform_driver = {
2110 .driver = {
2111 .name = "acer-wmi",
2112 .pm = &acer_pm,
2113 },
2114 .probe = acer_platform_probe,
2115 .remove = acer_platform_remove,
2116 .shutdown = acer_platform_shutdown,
2117 };
2118
2119 static struct platform_device *acer_platform_device;
2120
2121 static void remove_debugfs(void)
2122 {
2123 debugfs_remove(interface->debug.devices);
2124 debugfs_remove(interface->debug.root);
2125 }
2126
2127 static int __init create_debugfs(void)
2128 {
2129 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2130 if (!interface->debug.root) {
2131 pr_err("Failed to create debugfs directory");
2132 return -ENOMEM;
2133 }
2134
2135 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2136 interface->debug.root,
2137 &interface->debug.wmid_devices);
2138 if (!interface->debug.devices)
2139 goto error_debugfs;
2140
2141 return 0;
2142
2143 error_debugfs:
2144 remove_debugfs();
2145 return -ENOMEM;
2146 }
2147
2148 static int __init acer_wmi_init(void)
2149 {
2150 int err;
2151
2152 pr_info("Acer Laptop ACPI-WMI Extras\n");
2153
2154 if (dmi_check_system(acer_blacklist)) {
2155 pr_info("Blacklisted hardware detected - not loading\n");
2156 return -ENODEV;
2157 }
2158
2159 find_quirks();
2160
2161 /*
2162 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2163 * machines like Lenovo, Fujitsu and Medion. In the past days,
2164 * acer-wmi driver handled those non-Acer machines by quirks list.
2165 * But actually acer-wmi driver was loaded on any machines that have
2166 * AMW0_GUID1. This behavior is strange because those machines should
2167 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2168 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2169 * should be in Acer/Gateway/Packard Bell white list, or it's already
2170 * in the past quirk list.
2171 */
2172 if (wmi_has_guid(AMW0_GUID1) &&
2173 !dmi_check_system(amw0_whitelist) &&
2174 quirks == &quirk_unknown) {
2175 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
2176 return -ENODEV;
2177 }
2178
2179 /*
2180 * Detect which ACPI-WMI interface we're using.
2181 */
2182 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2183 interface = &AMW0_V2_interface;
2184
2185 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2186 interface = &wmid_interface;
2187
2188 if (wmi_has_guid(WMID_GUID3))
2189 interface = &wmid_v2_interface;
2190
2191 if (interface)
2192 dmi_walk(type_aa_dmi_decode, NULL);
2193
2194 if (wmi_has_guid(WMID_GUID2) && interface) {
2195 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2196 pr_err("Unable to detect available WMID devices\n");
2197 return -ENODEV;
2198 }
2199 /* WMID always provides brightness methods */
2200 interface->capability |= ACER_CAP_BRIGHTNESS;
2201 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2202 pr_err("No WMID device detection method found\n");
2203 return -ENODEV;
2204 }
2205
2206 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2207 interface = &AMW0_interface;
2208
2209 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2210 pr_err("Unable to detect available AMW0 devices\n");
2211 return -ENODEV;
2212 }
2213 }
2214
2215 if (wmi_has_guid(AMW0_GUID1))
2216 AMW0_find_mailled();
2217
2218 if (!interface) {
2219 pr_err("No or unsupported WMI interface, unable to load\n");
2220 return -ENODEV;
2221 }
2222
2223 set_quirks();
2224
2225 if (dmi_check_system(video_vendor_dmi_table))
2226 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2227
2228 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2229 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2230
2231 if (wmi_has_guid(WMID_GUID3)) {
2232 if (ec_raw_mode) {
2233 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2234 pr_err("Cannot enable EC raw mode\n");
2235 return -ENODEV;
2236 }
2237 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2238 pr_err("Cannot enable Launch Manager mode\n");
2239 return -ENODEV;
2240 }
2241 } else if (ec_raw_mode) {
2242 pr_info("No WMID EC raw mode enable method\n");
2243 }
2244
2245 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2246 err = acer_wmi_input_setup();
2247 if (err)
2248 return err;
2249 err = acer_wmi_accel_setup();
2250 if (err)
2251 return err;
2252 }
2253
2254 err = platform_driver_register(&acer_platform_driver);
2255 if (err) {
2256 pr_err("Unable to register platform driver\n");
2257 goto error_platform_register;
2258 }
2259
2260 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2261 if (!acer_platform_device) {
2262 err = -ENOMEM;
2263 goto error_device_alloc;
2264 }
2265
2266 err = platform_device_add(acer_platform_device);
2267 if (err)
2268 goto error_device_add;
2269
2270 if (wmi_has_guid(WMID_GUID2)) {
2271 interface->debug.wmid_devices = get_wmid_devices();
2272 err = create_debugfs();
2273 if (err)
2274 goto error_create_debugfs;
2275 }
2276
2277 /* Override any initial settings with values from the commandline */
2278 acer_commandline_init();
2279
2280 return 0;
2281
2282 error_create_debugfs:
2283 platform_device_del(acer_platform_device);
2284 error_device_add:
2285 platform_device_put(acer_platform_device);
2286 error_device_alloc:
2287 platform_driver_unregister(&acer_platform_driver);
2288 error_platform_register:
2289 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2290 acer_wmi_input_destroy();
2291 if (has_cap(ACER_CAP_ACCEL))
2292 acer_wmi_accel_destroy();
2293
2294 return err;
2295 }
2296
2297 static void __exit acer_wmi_exit(void)
2298 {
2299 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2300 acer_wmi_input_destroy();
2301
2302 if (has_cap(ACER_CAP_ACCEL))
2303 acer_wmi_accel_destroy();
2304
2305 remove_debugfs();
2306 platform_device_unregister(acer_platform_device);
2307 platform_driver_unregister(&acer_platform_driver);
2308
2309 pr_info("Acer Laptop WMI Extras unloaded\n");
2310 return;
2311 }
2312
2313 module_init(acer_wmi_init);
2314 module_exit(acer_wmi_exit);
Linux with added FPC-III support