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
set_quirks(void)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
dmi_matched(const struct dmi_system_id * dmi)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
video_set_backlight_video_vendor(const struct dmi_system_id * d)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 */
find_quirks(void)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
has_cap(u32 cap)673 static bool has_cap(u32 cap)
674 {
675 return interface->capability & cap;
676 }
677
678 /*
679 * AMW0 (V1) interface
680 */
681 struct wmab_args {
682 u32 eax;
683 u32 ebx;
684 u32 ecx;
685 u32 edx;
686 };
687
688 struct wmab_ret {
689 u32 eax;
690 u32 ebx;
691 u32 ecx;
692 u32 edx;
693 u32 eex;
694 };
695
wmab_execute(struct wmab_args * regbuf,struct acpi_buffer * result)696 static acpi_status wmab_execute(struct wmab_args *regbuf,
697 struct acpi_buffer *result)
698 {
699 struct acpi_buffer input;
700 acpi_status status;
701 input.length = sizeof(struct wmab_args);
702 input.pointer = (u8 *)regbuf;
703
704 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
705
706 return status;
707 }
708
AMW0_get_u32(u32 * value,u32 cap)709 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
710 {
711 int err;
712 u8 result;
713
714 switch (cap) {
715 case ACER_CAP_MAILLED:
716 switch (quirks->mailled) {
717 default:
718 err = ec_read(0xA, &result);
719 if (err)
720 return AE_ERROR;
721 *value = (result >> 7) & 0x1;
722 return AE_OK;
723 }
724 break;
725 case ACER_CAP_WIRELESS:
726 switch (quirks->wireless) {
727 case 1:
728 err = ec_read(0x7B, &result);
729 if (err)
730 return AE_ERROR;
731 *value = result & 0x1;
732 return AE_OK;
733 case 2:
734 err = ec_read(0x71, &result);
735 if (err)
736 return AE_ERROR;
737 *value = result & 0x1;
738 return AE_OK;
739 case 3:
740 err = ec_read(0x78, &result);
741 if (err)
742 return AE_ERROR;
743 *value = result & 0x1;
744 return AE_OK;
745 default:
746 err = ec_read(0xA, &result);
747 if (err)
748 return AE_ERROR;
749 *value = (result >> 2) & 0x1;
750 return AE_OK;
751 }
752 break;
753 case ACER_CAP_BLUETOOTH:
754 switch (quirks->bluetooth) {
755 default:
756 err = ec_read(0xA, &result);
757 if (err)
758 return AE_ERROR;
759 *value = (result >> 4) & 0x1;
760 return AE_OK;
761 }
762 break;
763 case ACER_CAP_BRIGHTNESS:
764 switch (quirks->brightness) {
765 default:
766 err = ec_read(0x83, &result);
767 if (err)
768 return AE_ERROR;
769 *value = result;
770 return AE_OK;
771 }
772 break;
773 default:
774 return AE_ERROR;
775 }
776 return AE_OK;
777 }
778
AMW0_set_u32(u32 value,u32 cap)779 static acpi_status AMW0_set_u32(u32 value, u32 cap)
780 {
781 struct wmab_args args;
782
783 args.eax = ACER_AMW0_WRITE;
784 args.ebx = value ? (1<<8) : 0;
785 args.ecx = args.edx = 0;
786
787 switch (cap) {
788 case ACER_CAP_MAILLED:
789 if (value > 1)
790 return AE_BAD_PARAMETER;
791 args.ebx |= ACER_AMW0_MAILLED_MASK;
792 break;
793 case ACER_CAP_WIRELESS:
794 if (value > 1)
795 return AE_BAD_PARAMETER;
796 args.ebx |= ACER_AMW0_WIRELESS_MASK;
797 break;
798 case ACER_CAP_BLUETOOTH:
799 if (value > 1)
800 return AE_BAD_PARAMETER;
801 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
802 break;
803 case ACER_CAP_BRIGHTNESS:
804 if (value > max_brightness)
805 return AE_BAD_PARAMETER;
806 switch (quirks->brightness) {
807 default:
808 return ec_write(0x83, value);
809 break;
810 }
811 default:
812 return AE_ERROR;
813 }
814
815 /* Actually do the set */
816 return wmab_execute(&args, NULL);
817 }
818
AMW0_find_mailled(void)819 static acpi_status __init AMW0_find_mailled(void)
820 {
821 struct wmab_args args;
822 struct wmab_ret ret;
823 acpi_status status = AE_OK;
824 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
825 union acpi_object *obj;
826
827 args.eax = 0x86;
828 args.ebx = args.ecx = args.edx = 0;
829
830 status = wmab_execute(&args, &out);
831 if (ACPI_FAILURE(status))
832 return status;
833
834 obj = (union acpi_object *) out.pointer;
835 if (obj && obj->type == ACPI_TYPE_BUFFER &&
836 obj->buffer.length == sizeof(struct wmab_ret)) {
837 ret = *((struct wmab_ret *) obj->buffer.pointer);
838 } else {
839 kfree(out.pointer);
840 return AE_ERROR;
841 }
842
843 if (ret.eex & 0x1)
844 interface->capability |= ACER_CAP_MAILLED;
845
846 kfree(out.pointer);
847
848 return AE_OK;
849 }
850
851 static const struct acpi_device_id norfkill_ids[] __initconst = {
852 { "VPC2004", 0},
853 { "IBM0068", 0},
854 { "LEN0068", 0},
855 { "SNY5001", 0}, /* sony-laptop in charge */
856 { "HPQ6601", 0},
857 { "", 0},
858 };
859
AMW0_set_cap_acpi_check_device(void)860 static int __init AMW0_set_cap_acpi_check_device(void)
861 {
862 const struct acpi_device_id *id;
863
864 for (id = norfkill_ids; id->id[0]; id++)
865 if (acpi_dev_found(id->id))
866 return true;
867
868 return false;
869 }
870
AMW0_set_capabilities(void)871 static acpi_status __init AMW0_set_capabilities(void)
872 {
873 struct wmab_args args;
874 struct wmab_ret ret;
875 acpi_status status;
876 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
877 union acpi_object *obj;
878
879 /*
880 * On laptops with this strange GUID (non Acer), normal probing doesn't
881 * work.
882 */
883 if (wmi_has_guid(AMW0_GUID2)) {
884 if ((quirks != &quirk_unknown) ||
885 !AMW0_set_cap_acpi_check_device())
886 interface->capability |= ACER_CAP_WIRELESS;
887 return AE_OK;
888 }
889
890 args.eax = ACER_AMW0_WRITE;
891 args.ecx = args.edx = 0;
892
893 args.ebx = 0xa2 << 8;
894 args.ebx |= ACER_AMW0_WIRELESS_MASK;
895
896 status = wmab_execute(&args, &out);
897 if (ACPI_FAILURE(status))
898 return status;
899
900 obj = out.pointer;
901 if (obj && obj->type == ACPI_TYPE_BUFFER &&
902 obj->buffer.length == sizeof(struct wmab_ret)) {
903 ret = *((struct wmab_ret *) obj->buffer.pointer);
904 } else {
905 status = AE_ERROR;
906 goto out;
907 }
908
909 if (ret.eax & 0x1)
910 interface->capability |= ACER_CAP_WIRELESS;
911
912 args.ebx = 2 << 8;
913 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
914
915 /*
916 * It's ok to use existing buffer for next wmab_execute call.
917 * But we need to kfree(out.pointer) if next wmab_execute fail.
918 */
919 status = wmab_execute(&args, &out);
920 if (ACPI_FAILURE(status))
921 goto out;
922
923 obj = (union acpi_object *) out.pointer;
924 if (obj && obj->type == ACPI_TYPE_BUFFER
925 && obj->buffer.length == sizeof(struct wmab_ret)) {
926 ret = *((struct wmab_ret *) obj->buffer.pointer);
927 } else {
928 status = AE_ERROR;
929 goto out;
930 }
931
932 if (ret.eax & 0x1)
933 interface->capability |= ACER_CAP_BLUETOOTH;
934
935 /*
936 * This appears to be safe to enable, since all Wistron based laptops
937 * appear to use the same EC register for brightness, even if they
938 * differ for wireless, etc
939 */
940 if (quirks->brightness >= 0)
941 interface->capability |= ACER_CAP_BRIGHTNESS;
942
943 status = AE_OK;
944 out:
945 kfree(out.pointer);
946 return status;
947 }
948
949 static struct wmi_interface AMW0_interface = {
950 .type = ACER_AMW0,
951 };
952
953 static struct wmi_interface AMW0_V2_interface = {
954 .type = ACER_AMW0_V2,
955 };
956
957 /*
958 * New interface (The WMID interface)
959 */
960 static acpi_status
WMI_execute_u32(u32 method_id,u32 in,u32 * out)961 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
962 {
963 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
964 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
965 union acpi_object *obj;
966 u32 tmp = 0;
967 acpi_status status;
968
969 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
970
971 if (ACPI_FAILURE(status))
972 return status;
973
974 obj = (union acpi_object *) result.pointer;
975 if (obj) {
976 if (obj->type == ACPI_TYPE_BUFFER &&
977 (obj->buffer.length == sizeof(u32) ||
978 obj->buffer.length == sizeof(u64))) {
979 tmp = *((u32 *) obj->buffer.pointer);
980 } else if (obj->type == ACPI_TYPE_INTEGER) {
981 tmp = (u32) obj->integer.value;
982 }
983 }
984
985 if (out)
986 *out = tmp;
987
988 kfree(result.pointer);
989
990 return status;
991 }
992
WMID_get_u32(u32 * value,u32 cap)993 static acpi_status WMID_get_u32(u32 *value, u32 cap)
994 {
995 acpi_status status;
996 u8 tmp;
997 u32 result, method_id = 0;
998
999 switch (cap) {
1000 case ACER_CAP_WIRELESS:
1001 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1002 break;
1003 case ACER_CAP_BLUETOOTH:
1004 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1005 break;
1006 case ACER_CAP_BRIGHTNESS:
1007 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1008 break;
1009 case ACER_CAP_THREEG:
1010 method_id = ACER_WMID_GET_THREEG_METHODID;
1011 break;
1012 case ACER_CAP_MAILLED:
1013 if (quirks->mailled == 1) {
1014 ec_read(0x9f, &tmp);
1015 *value = tmp & 0x1;
1016 return 0;
1017 }
1018 default:
1019 return AE_ERROR;
1020 }
1021 status = WMI_execute_u32(method_id, 0, &result);
1022
1023 if (ACPI_SUCCESS(status))
1024 *value = (u8)result;
1025
1026 return status;
1027 }
1028
WMID_set_u32(u32 value,u32 cap)1029 static acpi_status WMID_set_u32(u32 value, u32 cap)
1030 {
1031 u32 method_id = 0;
1032 char param;
1033
1034 switch (cap) {
1035 case ACER_CAP_BRIGHTNESS:
1036 if (value > max_brightness)
1037 return AE_BAD_PARAMETER;
1038 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1039 break;
1040 case ACER_CAP_WIRELESS:
1041 if (value > 1)
1042 return AE_BAD_PARAMETER;
1043 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1044 break;
1045 case ACER_CAP_BLUETOOTH:
1046 if (value > 1)
1047 return AE_BAD_PARAMETER;
1048 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1049 break;
1050 case ACER_CAP_THREEG:
1051 if (value > 1)
1052 return AE_BAD_PARAMETER;
1053 method_id = ACER_WMID_SET_THREEG_METHODID;
1054 break;
1055 case ACER_CAP_MAILLED:
1056 if (value > 1)
1057 return AE_BAD_PARAMETER;
1058 if (quirks->mailled == 1) {
1059 param = value ? 0x92 : 0x93;
1060 i8042_lock_chip();
1061 i8042_command(¶m, 0x1059);
1062 i8042_unlock_chip();
1063 return 0;
1064 }
1065 break;
1066 default:
1067 return AE_ERROR;
1068 }
1069 return WMI_execute_u32(method_id, (u32)value, NULL);
1070 }
1071
wmid3_get_device_status(u32 * value,u16 device)1072 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1073 {
1074 struct wmid3_gds_return_value return_value;
1075 acpi_status status;
1076 union acpi_object *obj;
1077 struct wmid3_gds_get_input_param params = {
1078 .function_num = 0x1,
1079 .hotkey_number = commun_fn_key_number,
1080 .devices = device,
1081 };
1082 struct acpi_buffer input = {
1083 sizeof(struct wmid3_gds_get_input_param),
1084 ¶ms
1085 };
1086 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1087
1088 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1089 if (ACPI_FAILURE(status))
1090 return status;
1091
1092 obj = output.pointer;
1093
1094 if (!obj)
1095 return AE_ERROR;
1096 else if (obj->type != ACPI_TYPE_BUFFER) {
1097 kfree(obj);
1098 return AE_ERROR;
1099 }
1100 if (obj->buffer.length != 8) {
1101 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1102 kfree(obj);
1103 return AE_ERROR;
1104 }
1105
1106 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1107 kfree(obj);
1108
1109 if (return_value.error_code || return_value.ec_return_value)
1110 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1111 device,
1112 return_value.error_code,
1113 return_value.ec_return_value);
1114 else
1115 *value = !!(return_value.devices & device);
1116
1117 return status;
1118 }
1119
wmid_v2_get_u32(u32 * value,u32 cap)1120 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1121 {
1122 u16 device;
1123
1124 switch (cap) {
1125 case ACER_CAP_WIRELESS:
1126 device = ACER_WMID3_GDS_WIRELESS;
1127 break;
1128 case ACER_CAP_BLUETOOTH:
1129 device = ACER_WMID3_GDS_BLUETOOTH;
1130 break;
1131 case ACER_CAP_THREEG:
1132 device = ACER_WMID3_GDS_THREEG;
1133 break;
1134 default:
1135 return AE_ERROR;
1136 }
1137 return wmid3_get_device_status(value, device);
1138 }
1139
wmid3_set_device_status(u32 value,u16 device)1140 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1141 {
1142 struct wmid3_gds_return_value return_value;
1143 acpi_status status;
1144 union acpi_object *obj;
1145 u16 devices;
1146 struct wmid3_gds_get_input_param get_params = {
1147 .function_num = 0x1,
1148 .hotkey_number = commun_fn_key_number,
1149 .devices = commun_func_bitmap,
1150 };
1151 struct acpi_buffer get_input = {
1152 sizeof(struct wmid3_gds_get_input_param),
1153 &get_params
1154 };
1155 struct wmid3_gds_set_input_param set_params = {
1156 .function_num = 0x2,
1157 .hotkey_number = commun_fn_key_number,
1158 .devices = commun_func_bitmap,
1159 };
1160 struct acpi_buffer set_input = {
1161 sizeof(struct wmid3_gds_set_input_param),
1162 &set_params
1163 };
1164 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1165 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1166
1167 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1168 if (ACPI_FAILURE(status))
1169 return status;
1170
1171 obj = output.pointer;
1172
1173 if (!obj)
1174 return AE_ERROR;
1175 else if (obj->type != ACPI_TYPE_BUFFER) {
1176 kfree(obj);
1177 return AE_ERROR;
1178 }
1179 if (obj->buffer.length != 8) {
1180 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1181 kfree(obj);
1182 return AE_ERROR;
1183 }
1184
1185 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1186 kfree(obj);
1187
1188 if (return_value.error_code || return_value.ec_return_value) {
1189 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1190 return_value.error_code,
1191 return_value.ec_return_value);
1192 return status;
1193 }
1194
1195 devices = return_value.devices;
1196 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1197
1198 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1199 if (ACPI_FAILURE(status))
1200 return status;
1201
1202 obj = output2.pointer;
1203
1204 if (!obj)
1205 return AE_ERROR;
1206 else if (obj->type != ACPI_TYPE_BUFFER) {
1207 kfree(obj);
1208 return AE_ERROR;
1209 }
1210 if (obj->buffer.length != 4) {
1211 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1212 kfree(obj);
1213 return AE_ERROR;
1214 }
1215
1216 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1217 kfree(obj);
1218
1219 if (return_value.error_code || return_value.ec_return_value)
1220 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1221 return_value.error_code,
1222 return_value.ec_return_value);
1223
1224 return status;
1225 }
1226
wmid_v2_set_u32(u32 value,u32 cap)1227 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1228 {
1229 u16 device;
1230
1231 switch (cap) {
1232 case ACER_CAP_WIRELESS:
1233 device = ACER_WMID3_GDS_WIRELESS;
1234 break;
1235 case ACER_CAP_BLUETOOTH:
1236 device = ACER_WMID3_GDS_BLUETOOTH;
1237 break;
1238 case ACER_CAP_THREEG:
1239 device = ACER_WMID3_GDS_THREEG;
1240 break;
1241 default:
1242 return AE_ERROR;
1243 }
1244 return wmid3_set_device_status(value, device);
1245 }
1246
type_aa_dmi_decode(const struct dmi_header * header,void * d)1247 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1248 {
1249 struct hotkey_function_type_aa *type_aa;
1250
1251 /* We are looking for OEM-specific Type AAh */
1252 if (header->type != 0xAA)
1253 return;
1254
1255 has_type_aa = true;
1256 type_aa = (struct hotkey_function_type_aa *) header;
1257
1258 pr_info("Function bitmap for Communication Button: 0x%x\n",
1259 type_aa->commun_func_bitmap);
1260 commun_func_bitmap = type_aa->commun_func_bitmap;
1261
1262 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1263 interface->capability |= ACER_CAP_WIRELESS;
1264 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1265 interface->capability |= ACER_CAP_THREEG;
1266 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1267 interface->capability |= ACER_CAP_BLUETOOTH;
1268 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) {
1269 interface->capability |= ACER_CAP_RFBTN;
1270 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1271 }
1272
1273 commun_fn_key_number = type_aa->commun_fn_key_number;
1274 }
1275
WMID_set_capabilities(void)1276 static acpi_status __init WMID_set_capabilities(void)
1277 {
1278 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1279 union acpi_object *obj;
1280 acpi_status status;
1281 u32 devices;
1282
1283 status = wmi_query_block(WMID_GUID2, 0, &out);
1284 if (ACPI_FAILURE(status))
1285 return status;
1286
1287 obj = (union acpi_object *) out.pointer;
1288 if (obj) {
1289 if (obj->type == ACPI_TYPE_BUFFER &&
1290 (obj->buffer.length == sizeof(u32) ||
1291 obj->buffer.length == sizeof(u64))) {
1292 devices = *((u32 *) obj->buffer.pointer);
1293 } else if (obj->type == ACPI_TYPE_INTEGER) {
1294 devices = (u32) obj->integer.value;
1295 } else {
1296 kfree(out.pointer);
1297 return AE_ERROR;
1298 }
1299 } else {
1300 kfree(out.pointer);
1301 return AE_ERROR;
1302 }
1303
1304 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1305 if (devices & 0x07)
1306 interface->capability |= ACER_CAP_WIRELESS;
1307 if (devices & 0x40)
1308 interface->capability |= ACER_CAP_THREEG;
1309 if (devices & 0x10)
1310 interface->capability |= ACER_CAP_BLUETOOTH;
1311
1312 if (!(devices & 0x20))
1313 max_brightness = 0x9;
1314
1315 kfree(out.pointer);
1316 return status;
1317 }
1318
1319 static struct wmi_interface wmid_interface = {
1320 .type = ACER_WMID,
1321 };
1322
1323 static struct wmi_interface wmid_v2_interface = {
1324 .type = ACER_WMID_v2,
1325 };
1326
1327 /*
1328 * Generic Device (interface-independent)
1329 */
1330
get_u32(u32 * value,u32 cap)1331 static acpi_status get_u32(u32 *value, u32 cap)
1332 {
1333 acpi_status status = AE_ERROR;
1334
1335 switch (interface->type) {
1336 case ACER_AMW0:
1337 status = AMW0_get_u32(value, cap);
1338 break;
1339 case ACER_AMW0_V2:
1340 if (cap == ACER_CAP_MAILLED) {
1341 status = AMW0_get_u32(value, cap);
1342 break;
1343 }
1344 case ACER_WMID:
1345 status = WMID_get_u32(value, cap);
1346 break;
1347 case ACER_WMID_v2:
1348 if (cap & (ACER_CAP_WIRELESS |
1349 ACER_CAP_BLUETOOTH |
1350 ACER_CAP_THREEG))
1351 status = wmid_v2_get_u32(value, cap);
1352 else if (wmi_has_guid(WMID_GUID2))
1353 status = WMID_get_u32(value, cap);
1354 break;
1355 }
1356
1357 return status;
1358 }
1359
set_u32(u32 value,u32 cap)1360 static acpi_status set_u32(u32 value, u32 cap)
1361 {
1362 acpi_status status;
1363
1364 if (interface->capability & cap) {
1365 switch (interface->type) {
1366 case ACER_AMW0:
1367 return AMW0_set_u32(value, cap);
1368 case ACER_AMW0_V2:
1369 if (cap == ACER_CAP_MAILLED)
1370 return AMW0_set_u32(value, cap);
1371
1372 /*
1373 * On some models, some WMID methods don't toggle
1374 * properly. For those cases, we want to run the AMW0
1375 * method afterwards to be certain we've really toggled
1376 * the device state.
1377 */
1378 if (cap == ACER_CAP_WIRELESS ||
1379 cap == ACER_CAP_BLUETOOTH) {
1380 status = WMID_set_u32(value, cap);
1381 if (ACPI_FAILURE(status))
1382 return status;
1383
1384 return AMW0_set_u32(value, cap);
1385 }
1386 case ACER_WMID:
1387 return WMID_set_u32(value, cap);
1388 case ACER_WMID_v2:
1389 if (cap & (ACER_CAP_WIRELESS |
1390 ACER_CAP_BLUETOOTH |
1391 ACER_CAP_THREEG))
1392 return wmid_v2_set_u32(value, cap);
1393 else if (wmi_has_guid(WMID_GUID2))
1394 return WMID_set_u32(value, cap);
1395 default:
1396 return AE_BAD_PARAMETER;
1397 }
1398 }
1399 return AE_BAD_PARAMETER;
1400 }
1401
acer_commandline_init(void)1402 static void __init acer_commandline_init(void)
1403 {
1404 /*
1405 * These will all fail silently if the value given is invalid, or the
1406 * capability isn't available on the given interface
1407 */
1408 if (mailled >= 0)
1409 set_u32(mailled, ACER_CAP_MAILLED);
1410 if (!has_type_aa && threeg >= 0)
1411 set_u32(threeg, ACER_CAP_THREEG);
1412 if (brightness >= 0)
1413 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1414 }
1415
1416 /*
1417 * LED device (Mail LED only, no other LEDs known yet)
1418 */
mail_led_set(struct led_classdev * led_cdev,enum led_brightness value)1419 static void mail_led_set(struct led_classdev *led_cdev,
1420 enum led_brightness value)
1421 {
1422 set_u32(value, ACER_CAP_MAILLED);
1423 }
1424
1425 static struct led_classdev mail_led = {
1426 .name = "acer-wmi::mail",
1427 .brightness_set = mail_led_set,
1428 };
1429
acer_led_init(struct device * dev)1430 static int acer_led_init(struct device *dev)
1431 {
1432 return led_classdev_register(dev, &mail_led);
1433 }
1434
acer_led_exit(void)1435 static void acer_led_exit(void)
1436 {
1437 set_u32(LED_OFF, ACER_CAP_MAILLED);
1438 led_classdev_unregister(&mail_led);
1439 }
1440
1441 /*
1442 * Backlight device
1443 */
1444 static struct backlight_device *acer_backlight_device;
1445
read_brightness(struct backlight_device * bd)1446 static int read_brightness(struct backlight_device *bd)
1447 {
1448 u32 value;
1449 get_u32(&value, ACER_CAP_BRIGHTNESS);
1450 return value;
1451 }
1452
update_bl_status(struct backlight_device * bd)1453 static int update_bl_status(struct backlight_device *bd)
1454 {
1455 int intensity = bd->props.brightness;
1456
1457 if (bd->props.power != FB_BLANK_UNBLANK)
1458 intensity = 0;
1459 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1460 intensity = 0;
1461
1462 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1463
1464 return 0;
1465 }
1466
1467 static const struct backlight_ops acer_bl_ops = {
1468 .get_brightness = read_brightness,
1469 .update_status = update_bl_status,
1470 };
1471
acer_backlight_init(struct device * dev)1472 static int acer_backlight_init(struct device *dev)
1473 {
1474 struct backlight_properties props;
1475 struct backlight_device *bd;
1476
1477 memset(&props, 0, sizeof(struct backlight_properties));
1478 props.type = BACKLIGHT_PLATFORM;
1479 props.max_brightness = max_brightness;
1480 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1481 &props);
1482 if (IS_ERR(bd)) {
1483 pr_err("Could not register Acer backlight device\n");
1484 acer_backlight_device = NULL;
1485 return PTR_ERR(bd);
1486 }
1487
1488 acer_backlight_device = bd;
1489
1490 bd->props.power = FB_BLANK_UNBLANK;
1491 bd->props.brightness = read_brightness(bd);
1492 backlight_update_status(bd);
1493 return 0;
1494 }
1495
acer_backlight_exit(void)1496 static void acer_backlight_exit(void)
1497 {
1498 backlight_device_unregister(acer_backlight_device);
1499 }
1500
1501 /*
1502 * Accelerometer device
1503 */
1504 static acpi_handle gsensor_handle;
1505
acer_gsensor_init(void)1506 static int acer_gsensor_init(void)
1507 {
1508 acpi_status status;
1509 struct acpi_buffer output;
1510 union acpi_object out_obj;
1511
1512 output.length = sizeof(out_obj);
1513 output.pointer = &out_obj;
1514 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1515 if (ACPI_FAILURE(status))
1516 return -1;
1517
1518 return 0;
1519 }
1520
acer_gsensor_open(struct input_dev * input)1521 static int acer_gsensor_open(struct input_dev *input)
1522 {
1523 return acer_gsensor_init();
1524 }
1525
acer_gsensor_event(void)1526 static int acer_gsensor_event(void)
1527 {
1528 acpi_status status;
1529 struct acpi_buffer output;
1530 union acpi_object out_obj[5];
1531
1532 if (!has_cap(ACER_CAP_ACCEL))
1533 return -1;
1534
1535 output.length = sizeof(out_obj);
1536 output.pointer = out_obj;
1537
1538 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1539 if (ACPI_FAILURE(status))
1540 return -1;
1541
1542 if (out_obj->package.count != 4)
1543 return -1;
1544
1545 input_report_abs(acer_wmi_accel_dev, ABS_X,
1546 (s16)out_obj->package.elements[0].integer.value);
1547 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1548 (s16)out_obj->package.elements[1].integer.value);
1549 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1550 (s16)out_obj->package.elements[2].integer.value);
1551 input_sync(acer_wmi_accel_dev);
1552 return 0;
1553 }
1554
1555 /*
1556 * Rfkill devices
1557 */
1558 static void acer_rfkill_update(struct work_struct *ignored);
1559 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
acer_rfkill_update(struct work_struct * ignored)1560 static void acer_rfkill_update(struct work_struct *ignored)
1561 {
1562 u32 state;
1563 acpi_status status;
1564
1565 if (has_cap(ACER_CAP_WIRELESS)) {
1566 status = get_u32(&state, ACER_CAP_WIRELESS);
1567 if (ACPI_SUCCESS(status)) {
1568 if (quirks->wireless == 3)
1569 rfkill_set_hw_state(wireless_rfkill, !state);
1570 else
1571 rfkill_set_sw_state(wireless_rfkill, !state);
1572 }
1573 }
1574
1575 if (has_cap(ACER_CAP_BLUETOOTH)) {
1576 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1577 if (ACPI_SUCCESS(status))
1578 rfkill_set_sw_state(bluetooth_rfkill, !state);
1579 }
1580
1581 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1582 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1583 if (ACPI_SUCCESS(status))
1584 rfkill_set_sw_state(threeg_rfkill, !state);
1585 }
1586
1587 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1588 }
1589
acer_rfkill_set(void * data,bool blocked)1590 static int acer_rfkill_set(void *data, bool blocked)
1591 {
1592 acpi_status status;
1593 u32 cap = (unsigned long)data;
1594
1595 if (rfkill_inited) {
1596 status = set_u32(!blocked, cap);
1597 if (ACPI_FAILURE(status))
1598 return -ENODEV;
1599 }
1600
1601 return 0;
1602 }
1603
1604 static const struct rfkill_ops acer_rfkill_ops = {
1605 .set_block = acer_rfkill_set,
1606 };
1607
acer_rfkill_register(struct device * dev,enum rfkill_type type,char * name,u32 cap)1608 static struct rfkill *acer_rfkill_register(struct device *dev,
1609 enum rfkill_type type,
1610 char *name, u32 cap)
1611 {
1612 int err;
1613 struct rfkill *rfkill_dev;
1614 u32 state;
1615 acpi_status status;
1616
1617 rfkill_dev = rfkill_alloc(name, dev, type,
1618 &acer_rfkill_ops,
1619 (void *)(unsigned long)cap);
1620 if (!rfkill_dev)
1621 return ERR_PTR(-ENOMEM);
1622
1623 status = get_u32(&state, cap);
1624
1625 err = rfkill_register(rfkill_dev);
1626 if (err) {
1627 rfkill_destroy(rfkill_dev);
1628 return ERR_PTR(err);
1629 }
1630
1631 if (ACPI_SUCCESS(status))
1632 rfkill_set_sw_state(rfkill_dev, !state);
1633
1634 return rfkill_dev;
1635 }
1636
acer_rfkill_init(struct device * dev)1637 static int acer_rfkill_init(struct device *dev)
1638 {
1639 int err;
1640
1641 if (has_cap(ACER_CAP_WIRELESS)) {
1642 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1643 "acer-wireless", ACER_CAP_WIRELESS);
1644 if (IS_ERR(wireless_rfkill)) {
1645 err = PTR_ERR(wireless_rfkill);
1646 goto error_wireless;
1647 }
1648 }
1649
1650 if (has_cap(ACER_CAP_BLUETOOTH)) {
1651 bluetooth_rfkill = acer_rfkill_register(dev,
1652 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1653 ACER_CAP_BLUETOOTH);
1654 if (IS_ERR(bluetooth_rfkill)) {
1655 err = PTR_ERR(bluetooth_rfkill);
1656 goto error_bluetooth;
1657 }
1658 }
1659
1660 if (has_cap(ACER_CAP_THREEG)) {
1661 threeg_rfkill = acer_rfkill_register(dev,
1662 RFKILL_TYPE_WWAN, "acer-threeg",
1663 ACER_CAP_THREEG);
1664 if (IS_ERR(threeg_rfkill)) {
1665 err = PTR_ERR(threeg_rfkill);
1666 goto error_threeg;
1667 }
1668 }
1669
1670 rfkill_inited = true;
1671
1672 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1673 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1674 schedule_delayed_work(&acer_rfkill_work,
1675 round_jiffies_relative(HZ));
1676
1677 return 0;
1678
1679 error_threeg:
1680 if (has_cap(ACER_CAP_BLUETOOTH)) {
1681 rfkill_unregister(bluetooth_rfkill);
1682 rfkill_destroy(bluetooth_rfkill);
1683 }
1684 error_bluetooth:
1685 if (has_cap(ACER_CAP_WIRELESS)) {
1686 rfkill_unregister(wireless_rfkill);
1687 rfkill_destroy(wireless_rfkill);
1688 }
1689 error_wireless:
1690 return err;
1691 }
1692
acer_rfkill_exit(void)1693 static void acer_rfkill_exit(void)
1694 {
1695 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1696 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1697 cancel_delayed_work_sync(&acer_rfkill_work);
1698
1699 if (has_cap(ACER_CAP_WIRELESS)) {
1700 rfkill_unregister(wireless_rfkill);
1701 rfkill_destroy(wireless_rfkill);
1702 }
1703
1704 if (has_cap(ACER_CAP_BLUETOOTH)) {
1705 rfkill_unregister(bluetooth_rfkill);
1706 rfkill_destroy(bluetooth_rfkill);
1707 }
1708
1709 if (has_cap(ACER_CAP_THREEG)) {
1710 rfkill_unregister(threeg_rfkill);
1711 rfkill_destroy(threeg_rfkill);
1712 }
1713 return;
1714 }
1715
acer_wmi_notify(u32 value,void * context)1716 static void acer_wmi_notify(u32 value, void *context)
1717 {
1718 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1719 union acpi_object *obj;
1720 struct event_return_value return_value;
1721 acpi_status status;
1722 u16 device_state;
1723 const struct key_entry *key;
1724 u32 scancode;
1725
1726 status = wmi_get_event_data(value, &response);
1727 if (status != AE_OK) {
1728 pr_warn("bad event status 0x%x\n", status);
1729 return;
1730 }
1731
1732 obj = (union acpi_object *)response.pointer;
1733
1734 if (!obj)
1735 return;
1736 if (obj->type != ACPI_TYPE_BUFFER) {
1737 pr_warn("Unknown response received %d\n", obj->type);
1738 kfree(obj);
1739 return;
1740 }
1741 if (obj->buffer.length != 8) {
1742 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1743 kfree(obj);
1744 return;
1745 }
1746
1747 return_value = *((struct event_return_value *)obj->buffer.pointer);
1748 kfree(obj);
1749
1750 switch (return_value.function) {
1751 case WMID_HOTKEY_EVENT:
1752 device_state = return_value.device_state;
1753 pr_debug("device state: 0x%x\n", device_state);
1754
1755 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1756 return_value.key_num);
1757 if (!key) {
1758 pr_warn("Unknown key number - 0x%x\n",
1759 return_value.key_num);
1760 } else {
1761 scancode = return_value.key_num;
1762 switch (key->keycode) {
1763 case KEY_WLAN:
1764 case KEY_BLUETOOTH:
1765 if (has_cap(ACER_CAP_WIRELESS))
1766 rfkill_set_sw_state(wireless_rfkill,
1767 !(device_state & ACER_WMID3_GDS_WIRELESS));
1768 if (has_cap(ACER_CAP_THREEG))
1769 rfkill_set_sw_state(threeg_rfkill,
1770 !(device_state & ACER_WMID3_GDS_THREEG));
1771 if (has_cap(ACER_CAP_BLUETOOTH))
1772 rfkill_set_sw_state(bluetooth_rfkill,
1773 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1774 break;
1775 case KEY_TOUCHPAD_TOGGLE:
1776 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1777 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1778 }
1779 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1780 }
1781 break;
1782 case WMID_ACCEL_EVENT:
1783 acer_gsensor_event();
1784 break;
1785 default:
1786 pr_warn("Unknown function number - %d - %d\n",
1787 return_value.function, return_value.key_num);
1788 break;
1789 }
1790 }
1791
1792 static acpi_status __init
wmid3_set_function_mode(struct func_input_params * params,struct func_return_value * return_value)1793 wmid3_set_function_mode(struct func_input_params *params,
1794 struct func_return_value *return_value)
1795 {
1796 acpi_status status;
1797 union acpi_object *obj;
1798
1799 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1800 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1801
1802 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1803 if (ACPI_FAILURE(status))
1804 return status;
1805
1806 obj = output.pointer;
1807
1808 if (!obj)
1809 return AE_ERROR;
1810 else if (obj->type != ACPI_TYPE_BUFFER) {
1811 kfree(obj);
1812 return AE_ERROR;
1813 }
1814 if (obj->buffer.length != 4) {
1815 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1816 kfree(obj);
1817 return AE_ERROR;
1818 }
1819
1820 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1821 kfree(obj);
1822
1823 return status;
1824 }
1825
acer_wmi_enable_ec_raw(void)1826 static int __init acer_wmi_enable_ec_raw(void)
1827 {
1828 struct func_return_value return_value;
1829 acpi_status status;
1830 struct func_input_params params = {
1831 .function_num = 0x1,
1832 .commun_devices = 0xFFFF,
1833 .devices = 0xFFFF,
1834 .app_status = 0x00, /* Launch Manager Deactive */
1835 .app_mask = 0x01,
1836 };
1837
1838 status = wmid3_set_function_mode(¶ms, &return_value);
1839
1840 if (return_value.error_code || return_value.ec_return_value)
1841 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1842 return_value.error_code,
1843 return_value.ec_return_value);
1844 else
1845 pr_info("Enabled EC raw mode\n");
1846
1847 return status;
1848 }
1849
acer_wmi_enable_lm(void)1850 static int __init acer_wmi_enable_lm(void)
1851 {
1852 struct func_return_value return_value;
1853 acpi_status status;
1854 struct func_input_params params = {
1855 .function_num = 0x1,
1856 .commun_devices = 0xFFFF,
1857 .devices = 0xFFFF,
1858 .app_status = 0x01, /* Launch Manager Active */
1859 .app_mask = 0x01,
1860 };
1861
1862 status = wmid3_set_function_mode(¶ms, &return_value);
1863
1864 if (return_value.error_code || return_value.ec_return_value)
1865 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1866 return_value.error_code,
1867 return_value.ec_return_value);
1868
1869 return status;
1870 }
1871
acer_wmi_enable_rf_button(void)1872 static int __init acer_wmi_enable_rf_button(void)
1873 {
1874 struct func_return_value return_value;
1875 acpi_status status;
1876 struct func_input_params params = {
1877 .function_num = 0x1,
1878 .commun_devices = 0xFFFF,
1879 .devices = 0xFFFF,
1880 .app_status = 0x10, /* RF Button Active */
1881 .app_mask = 0x10,
1882 };
1883
1884 status = wmid3_set_function_mode(¶ms, &return_value);
1885
1886 if (return_value.error_code || return_value.ec_return_value)
1887 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1888 return_value.error_code,
1889 return_value.ec_return_value);
1890
1891 return status;
1892 }
1893
1894 #define ACER_WMID_ACCEL_HID "BST0001"
1895
acer_wmi_get_handle_cb(acpi_handle ah,u32 level,void * ctx,void ** retval)1896 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1897 void *ctx, void **retval)
1898 {
1899 struct acpi_device *dev;
1900
1901 if (!strcmp(ctx, "SENR")) {
1902 if (acpi_bus_get_device(ah, &dev))
1903 return AE_OK;
1904 if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
1905 return AE_OK;
1906 } else
1907 return AE_OK;
1908
1909 *(acpi_handle *)retval = ah;
1910
1911 return AE_CTRL_TERMINATE;
1912 }
1913
acer_wmi_get_handle(const char * name,const char * prop,acpi_handle * ah)1914 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1915 acpi_handle *ah)
1916 {
1917 acpi_status status;
1918 acpi_handle handle;
1919
1920 BUG_ON(!name || !ah);
1921
1922 handle = NULL;
1923 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1924 (void *)name, &handle);
1925 if (ACPI_SUCCESS(status) && handle) {
1926 *ah = handle;
1927 return 0;
1928 } else {
1929 return -ENODEV;
1930 }
1931 }
1932
acer_wmi_accel_setup(void)1933 static int __init acer_wmi_accel_setup(void)
1934 {
1935 int err;
1936
1937 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
1938 if (err)
1939 return err;
1940
1941 interface->capability |= ACER_CAP_ACCEL;
1942
1943 acer_wmi_accel_dev = input_allocate_device();
1944 if (!acer_wmi_accel_dev)
1945 return -ENOMEM;
1946
1947 acer_wmi_accel_dev->open = acer_gsensor_open;
1948
1949 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1950 acer_wmi_accel_dev->phys = "wmi/input1";
1951 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1952 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1953 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1954 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1955 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1956
1957 err = input_register_device(acer_wmi_accel_dev);
1958 if (err)
1959 goto err_free_dev;
1960
1961 return 0;
1962
1963 err_free_dev:
1964 input_free_device(acer_wmi_accel_dev);
1965 return err;
1966 }
1967
acer_wmi_accel_destroy(void)1968 static void acer_wmi_accel_destroy(void)
1969 {
1970 input_unregister_device(acer_wmi_accel_dev);
1971 }
1972
acer_wmi_input_setup(void)1973 static int __init acer_wmi_input_setup(void)
1974 {
1975 acpi_status status;
1976 int err;
1977
1978 acer_wmi_input_dev = input_allocate_device();
1979 if (!acer_wmi_input_dev)
1980 return -ENOMEM;
1981
1982 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1983 acer_wmi_input_dev->phys = "wmi/input0";
1984 acer_wmi_input_dev->id.bustype = BUS_HOST;
1985
1986 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1987 if (err)
1988 goto err_free_dev;
1989
1990 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1991 acer_wmi_notify, NULL);
1992 if (ACPI_FAILURE(status)) {
1993 err = -EIO;
1994 goto err_free_dev;
1995 }
1996
1997 err = input_register_device(acer_wmi_input_dev);
1998 if (err)
1999 goto err_uninstall_notifier;
2000
2001 return 0;
2002
2003 err_uninstall_notifier:
2004 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2005 err_free_dev:
2006 input_free_device(acer_wmi_input_dev);
2007 return err;
2008 }
2009
acer_wmi_input_destroy(void)2010 static void acer_wmi_input_destroy(void)
2011 {
2012 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2013 input_unregister_device(acer_wmi_input_dev);
2014 }
2015
2016 /*
2017 * debugfs functions
2018 */
get_wmid_devices(void)2019 static u32 get_wmid_devices(void)
2020 {
2021 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2022 union acpi_object *obj;
2023 acpi_status status;
2024 u32 devices = 0;
2025
2026 status = wmi_query_block(WMID_GUID2, 0, &out);
2027 if (ACPI_FAILURE(status))
2028 return 0;
2029
2030 obj = (union acpi_object *) out.pointer;
2031 if (obj) {
2032 if (obj->type == ACPI_TYPE_BUFFER &&
2033 (obj->buffer.length == sizeof(u32) ||
2034 obj->buffer.length == sizeof(u64))) {
2035 devices = *((u32 *) obj->buffer.pointer);
2036 } else if (obj->type == ACPI_TYPE_INTEGER) {
2037 devices = (u32) obj->integer.value;
2038 }
2039 }
2040
2041 kfree(out.pointer);
2042 return devices;
2043 }
2044
2045 /*
2046 * Platform device
2047 */
acer_platform_probe(struct platform_device * device)2048 static int acer_platform_probe(struct platform_device *device)
2049 {
2050 int err;
2051
2052 if (has_cap(ACER_CAP_MAILLED)) {
2053 err = acer_led_init(&device->dev);
2054 if (err)
2055 goto error_mailled;
2056 }
2057
2058 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2059 err = acer_backlight_init(&device->dev);
2060 if (err)
2061 goto error_brightness;
2062 }
2063
2064 err = acer_rfkill_init(&device->dev);
2065 if (err)
2066 goto error_rfkill;
2067
2068 return err;
2069
2070 error_rfkill:
2071 if (has_cap(ACER_CAP_BRIGHTNESS))
2072 acer_backlight_exit();
2073 error_brightness:
2074 if (has_cap(ACER_CAP_MAILLED))
2075 acer_led_exit();
2076 error_mailled:
2077 return err;
2078 }
2079
acer_platform_remove(struct platform_device * device)2080 static int acer_platform_remove(struct platform_device *device)
2081 {
2082 if (has_cap(ACER_CAP_MAILLED))
2083 acer_led_exit();
2084 if (has_cap(ACER_CAP_BRIGHTNESS))
2085 acer_backlight_exit();
2086
2087 acer_rfkill_exit();
2088 return 0;
2089 }
2090
2091 #ifdef CONFIG_PM_SLEEP
acer_suspend(struct device * dev)2092 static int acer_suspend(struct device *dev)
2093 {
2094 u32 value;
2095 struct acer_data *data = &interface->data;
2096
2097 if (!data)
2098 return -ENOMEM;
2099
2100 if (has_cap(ACER_CAP_MAILLED)) {
2101 get_u32(&value, ACER_CAP_MAILLED);
2102 set_u32(LED_OFF, ACER_CAP_MAILLED);
2103 data->mailled = value;
2104 }
2105
2106 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2107 get_u32(&value, ACER_CAP_BRIGHTNESS);
2108 data->brightness = value;
2109 }
2110
2111 return 0;
2112 }
2113
acer_resume(struct device * dev)2114 static int acer_resume(struct device *dev)
2115 {
2116 struct acer_data *data = &interface->data;
2117
2118 if (!data)
2119 return -ENOMEM;
2120
2121 if (has_cap(ACER_CAP_MAILLED))
2122 set_u32(data->mailled, ACER_CAP_MAILLED);
2123
2124 if (has_cap(ACER_CAP_BRIGHTNESS))
2125 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2126
2127 if (has_cap(ACER_CAP_ACCEL))
2128 acer_gsensor_init();
2129
2130 return 0;
2131 }
2132 #else
2133 #define acer_suspend NULL
2134 #define acer_resume NULL
2135 #endif
2136
2137 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2138
acer_platform_shutdown(struct platform_device * device)2139 static void acer_platform_shutdown(struct platform_device *device)
2140 {
2141 struct acer_data *data = &interface->data;
2142
2143 if (!data)
2144 return;
2145
2146 if (has_cap(ACER_CAP_MAILLED))
2147 set_u32(LED_OFF, ACER_CAP_MAILLED);
2148 }
2149
2150 static struct platform_driver acer_platform_driver = {
2151 .driver = {
2152 .name = "acer-wmi",
2153 .pm = &acer_pm,
2154 },
2155 .probe = acer_platform_probe,
2156 .remove = acer_platform_remove,
2157 .shutdown = acer_platform_shutdown,
2158 };
2159
2160 static struct platform_device *acer_platform_device;
2161
remove_debugfs(void)2162 static void remove_debugfs(void)
2163 {
2164 debugfs_remove(interface->debug.devices);
2165 debugfs_remove(interface->debug.root);
2166 }
2167
create_debugfs(void)2168 static int __init create_debugfs(void)
2169 {
2170 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2171 if (!interface->debug.root) {
2172 pr_err("Failed to create debugfs directory");
2173 return -ENOMEM;
2174 }
2175
2176 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2177 interface->debug.root,
2178 &interface->debug.wmid_devices);
2179 if (!interface->debug.devices)
2180 goto error_debugfs;
2181
2182 return 0;
2183
2184 error_debugfs:
2185 remove_debugfs();
2186 return -ENOMEM;
2187 }
2188
acer_wmi_init(void)2189 static int __init acer_wmi_init(void)
2190 {
2191 int err;
2192
2193 pr_info("Acer Laptop ACPI-WMI Extras\n");
2194
2195 if (dmi_check_system(acer_blacklist)) {
2196 pr_info("Blacklisted hardware detected - not loading\n");
2197 return -ENODEV;
2198 }
2199
2200 find_quirks();
2201
2202 /*
2203 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2204 * machines like Lenovo, Fujitsu and Medion. In the past days,
2205 * acer-wmi driver handled those non-Acer machines by quirks list.
2206 * But actually acer-wmi driver was loaded on any machines that have
2207 * AMW0_GUID1. This behavior is strange because those machines should
2208 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2209 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2210 * should be in Acer/Gateway/Packard Bell white list, or it's already
2211 * in the past quirk list.
2212 */
2213 if (wmi_has_guid(AMW0_GUID1) &&
2214 !dmi_check_system(amw0_whitelist) &&
2215 quirks == &quirk_unknown) {
2216 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2217 return -ENODEV;
2218 }
2219
2220 /*
2221 * Detect which ACPI-WMI interface we're using.
2222 */
2223 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2224 interface = &AMW0_V2_interface;
2225
2226 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2227 interface = &wmid_interface;
2228
2229 if (wmi_has_guid(WMID_GUID3))
2230 interface = &wmid_v2_interface;
2231
2232 if (interface)
2233 dmi_walk(type_aa_dmi_decode, NULL);
2234
2235 if (wmi_has_guid(WMID_GUID2) && interface) {
2236 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2237 pr_err("Unable to detect available WMID devices\n");
2238 return -ENODEV;
2239 }
2240 /* WMID always provides brightness methods */
2241 interface->capability |= ACER_CAP_BRIGHTNESS;
2242 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2243 pr_err("No WMID device detection method found\n");
2244 return -ENODEV;
2245 }
2246
2247 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2248 interface = &AMW0_interface;
2249
2250 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2251 pr_err("Unable to detect available AMW0 devices\n");
2252 return -ENODEV;
2253 }
2254 }
2255
2256 if (wmi_has_guid(AMW0_GUID1))
2257 AMW0_find_mailled();
2258
2259 if (!interface) {
2260 pr_err("No or unsupported WMI interface, unable to load\n");
2261 return -ENODEV;
2262 }
2263
2264 set_quirks();
2265
2266 if (dmi_check_system(video_vendor_dmi_table))
2267 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2268
2269 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2270 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2271
2272 if (wmi_has_guid(WMID_GUID3)) {
2273 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2274 pr_warn("Cannot enable RF Button Driver\n");
2275
2276 if (ec_raw_mode) {
2277 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2278 pr_err("Cannot enable EC raw mode\n");
2279 return -ENODEV;
2280 }
2281 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2282 pr_err("Cannot enable Launch Manager mode\n");
2283 return -ENODEV;
2284 }
2285 } else if (ec_raw_mode) {
2286 pr_info("No WMID EC raw mode enable method\n");
2287 }
2288
2289 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2290 err = acer_wmi_input_setup();
2291 if (err)
2292 return err;
2293 err = acer_wmi_accel_setup();
2294 if (err && err != -ENODEV)
2295 pr_warn("Cannot enable accelerometer\n");
2296 }
2297
2298 err = platform_driver_register(&acer_platform_driver);
2299 if (err) {
2300 pr_err("Unable to register platform driver\n");
2301 goto error_platform_register;
2302 }
2303
2304 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2305 if (!acer_platform_device) {
2306 err = -ENOMEM;
2307 goto error_device_alloc;
2308 }
2309
2310 err = platform_device_add(acer_platform_device);
2311 if (err)
2312 goto error_device_add;
2313
2314 if (wmi_has_guid(WMID_GUID2)) {
2315 interface->debug.wmid_devices = get_wmid_devices();
2316 err = create_debugfs();
2317 if (err)
2318 goto error_create_debugfs;
2319 }
2320
2321 /* Override any initial settings with values from the commandline */
2322 acer_commandline_init();
2323
2324 return 0;
2325
2326 error_create_debugfs:
2327 platform_device_del(acer_platform_device);
2328 error_device_add:
2329 platform_device_put(acer_platform_device);
2330 error_device_alloc:
2331 platform_driver_unregister(&acer_platform_driver);
2332 error_platform_register:
2333 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2334 acer_wmi_input_destroy();
2335 if (has_cap(ACER_CAP_ACCEL))
2336 acer_wmi_accel_destroy();
2337
2338 return err;
2339 }
2340
acer_wmi_exit(void)2341 static void __exit acer_wmi_exit(void)
2342 {
2343 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2344 acer_wmi_input_destroy();
2345
2346 if (has_cap(ACER_CAP_ACCEL))
2347 acer_wmi_accel_destroy();
2348
2349 remove_debugfs();
2350 platform_device_unregister(acer_platform_device);
2351 platform_driver_unregister(&acer_platform_driver);
2352
2353 pr_info("Acer Laptop WMI Extras unloaded\n");
2354 return;
2355 }
2356
2357 module_init(acer_wmi_init);
2358 module_exit(acer_wmi_exit);
2359
