1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Acer WMI Laptop Extras
4 *
5 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
6 *
7 * Based on acer_acpi:
8 * Copyright (C) 2005-2007 E.M. Smith
9 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
10 */
11
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/types.h>
18 #include <linux/dmi.h>
19 #include <linux/fb.h>
20 #include <linux/backlight.h>
21 #include <linux/leds.h>
22 #include <linux/platform_device.h>
23 #include <linux/acpi.h>
24 #include <linux/i8042.h>
25 #include <linux/rfkill.h>
26 #include <linux/workqueue.h>
27 #include <linux/debugfs.h>
28 #include <linux/slab.h>
29 #include <linux/input.h>
30 #include <linux/input/sparse-keymap.h>
31 #include <acpi/video.h>
32
33 MODULE_AUTHOR("Carlos Corbacho");
34 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
35 MODULE_LICENSE("GPL");
36
37 /*
38 * Magic Number
39 * Meaning is unknown - this number is required for writing to ACPI for AMW0
40 * (it's also used in acerhk when directly accessing the BIOS)
41 */
42 #define ACER_AMW0_WRITE 0x9610
43
44 /*
45 * Bit masks for the AMW0 interface
46 */
47 #define ACER_AMW0_WIRELESS_MASK 0x35
48 #define ACER_AMW0_BLUETOOTH_MASK 0x34
49 #define ACER_AMW0_MAILLED_MASK 0x31
50
51 /*
52 * Method IDs for WMID interface
53 */
54 #define ACER_WMID_GET_WIRELESS_METHODID 1
55 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
56 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
57 #define ACER_WMID_SET_WIRELESS_METHODID 4
58 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
59 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
60 #define ACER_WMID_GET_THREEG_METHODID 10
61 #define ACER_WMID_SET_THREEG_METHODID 11
62
63 /*
64 * Acer ACPI method GUIDs
65 */
66 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
67 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
68 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
69 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
70 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
71
72 /*
73 * Acer ACPI event GUIDs
74 */
75 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
76
77 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
78 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
79 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
80
81 enum acer_wmi_event_ids {
82 WMID_HOTKEY_EVENT = 0x1,
83 WMID_ACCEL_EVENT = 0x5,
84 };
85
86 static const struct key_entry acer_wmi_keymap[] __initconst = {
87 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
88 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
89 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
90 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
91 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
92 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
93 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
94 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
95 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
96 {KE_IGNORE, 0x41, {KEY_MUTE} },
97 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
98 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
99 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
100 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
101 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
102 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
103 {KE_IGNORE, 0x45, {KEY_STOP} },
104 {KE_IGNORE, 0x50, {KEY_STOP} },
105 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
106 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
107 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
108 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
109 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
110 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
111 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
112 {KE_IGNORE, 0x81, {KEY_SLEEP} },
113 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
114 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
115 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
116 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
117 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
118 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
119 {KE_KEY, 0x86, {KEY_WLAN} },
120 {KE_KEY, 0x87, {KEY_POWER} },
121 {KE_END, 0}
122 };
123
124 static struct input_dev *acer_wmi_input_dev;
125 static struct input_dev *acer_wmi_accel_dev;
126
127 struct event_return_value {
128 u8 function;
129 u8 key_num;
130 u16 device_state;
131 u32 reserved;
132 } __attribute__((packed));
133
134 /*
135 * GUID3 Get Device Status device flags
136 */
137 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
138 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
139 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
140 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
141 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
142
143 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
144
145 /* Hotkey Customized Setting and Acer Application Status.
146 * Set Device Default Value and Report Acer Application Status.
147 * When Acer Application starts, it will run this method to inform
148 * BIOS/EC that Acer Application is on.
149 * App Status
150 * Bit[0]: Launch Manager Status
151 * Bit[1]: ePM Status
152 * Bit[2]: Device Control Status
153 * Bit[3]: Acer Power Button Utility Status
154 * Bit[4]: RF Button Status
155 * Bit[5]: ODD PM Status
156 * Bit[6]: Device Default Value Control
157 * Bit[7]: Hall Sensor Application Status
158 */
159 struct func_input_params {
160 u8 function_num; /* Function Number */
161 u16 commun_devices; /* Communication type devices default status */
162 u16 devices; /* Other type devices default status */
163 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
164 u8 app_mask; /* Bit mask to app_status */
165 u8 reserved;
166 } __attribute__((packed));
167
168 struct func_return_value {
169 u8 error_code; /* Error Code */
170 u8 ec_return_value; /* EC Return Value */
171 u16 reserved;
172 } __attribute__((packed));
173
174 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Set Device */
178 u8 volume_value; /* Volume Value */
179 } __attribute__((packed));
180
181 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
182 u8 function_num; /* Function Number */
183 u8 hotkey_number; /* Hotkey Number */
184 u16 devices; /* Get Device */
185 } __attribute__((packed));
186
187 struct wmid3_gds_return_value { /* Get Device Status return value*/
188 u8 error_code; /* Error Code */
189 u8 ec_return_value; /* EC Return Value */
190 u16 devices; /* Current Device Status */
191 u32 reserved;
192 } __attribute__((packed));
193
194 struct hotkey_function_type_aa {
195 u8 type;
196 u8 length;
197 u16 handle;
198 u16 commun_func_bitmap;
199 u16 application_func_bitmap;
200 u16 media_func_bitmap;
201 u16 display_func_bitmap;
202 u16 others_func_bitmap;
203 u8 commun_fn_key_number;
204 } __attribute__((packed));
205
206 /*
207 * Interface capability flags
208 */
209 #define ACER_CAP_MAILLED (1<<0)
210 #define ACER_CAP_WIRELESS (1<<1)
211 #define ACER_CAP_BLUETOOTH (1<<2)
212 #define ACER_CAP_BRIGHTNESS (1<<3)
213 #define ACER_CAP_THREEG (1<<4)
214 #define ACER_CAP_ACCEL (1<<5)
215 #define ACER_CAP_RFBTN (1<<6)
216 #define ACER_CAP_ANY (0xFFFFFFFF)
217
218 /*
219 * Interface type flags
220 */
221 enum interface_flags {
222 ACER_AMW0,
223 ACER_AMW0_V2,
224 ACER_WMID,
225 ACER_WMID_v2,
226 };
227
228 #define ACER_DEFAULT_WIRELESS 0
229 #define ACER_DEFAULT_BLUETOOTH 0
230 #define ACER_DEFAULT_MAILLED 0
231 #define ACER_DEFAULT_THREEG 0
232
233 static int max_brightness = 0xF;
234
235 static int mailled = -1;
236 static int brightness = -1;
237 static int threeg = -1;
238 static int force_series;
239 static bool ec_raw_mode;
240 static bool has_type_aa;
241 static u16 commun_func_bitmap;
242 static u8 commun_fn_key_number;
243
244 module_param(mailled, int, 0444);
245 module_param(brightness, int, 0444);
246 module_param(threeg, int, 0444);
247 module_param(force_series, int, 0444);
248 module_param(ec_raw_mode, bool, 0444);
249 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
250 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
251 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
252 MODULE_PARM_DESC(force_series, "Force a different laptop series");
253 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
254
255 struct acer_data {
256 int mailled;
257 int threeg;
258 int brightness;
259 };
260
261 struct acer_debug {
262 struct dentry *root;
263 u32 wmid_devices;
264 };
265
266 static struct rfkill *wireless_rfkill;
267 static struct rfkill *bluetooth_rfkill;
268 static struct rfkill *threeg_rfkill;
269 static bool rfkill_inited;
270
271 /* Each low-level interface must define at least some of the following */
272 struct wmi_interface {
273 /* The WMI device type */
274 u32 type;
275
276 /* The capabilities this interface provides */
277 u32 capability;
278
279 /* Private data for the current interface */
280 struct acer_data data;
281
282 /* debugfs entries associated with this interface */
283 struct acer_debug debug;
284 };
285
286 /* The static interface pointer, points to the currently detected interface */
287 static struct wmi_interface *interface;
288
289 /*
290 * Embedded Controller quirks
291 * Some laptops require us to directly access the EC to either enable or query
292 * features that are not available through WMI.
293 */
294
295 struct quirk_entry {
296 u8 wireless;
297 u8 mailled;
298 s8 brightness;
299 u8 bluetooth;
300 };
301
302 static struct quirk_entry *quirks;
303
set_quirks(void)304 static void __init set_quirks(void)
305 {
306 if (!interface)
307 return;
308
309 if (quirks->mailled)
310 interface->capability |= ACER_CAP_MAILLED;
311
312 if (quirks->brightness)
313 interface->capability |= ACER_CAP_BRIGHTNESS;
314 }
315
dmi_matched(const struct dmi_system_id * dmi)316 static int __init dmi_matched(const struct dmi_system_id *dmi)
317 {
318 quirks = dmi->driver_data;
319 return 1;
320 }
321
322 static struct quirk_entry quirk_unknown = {
323 };
324
325 static struct quirk_entry quirk_acer_aspire_1520 = {
326 .brightness = -1,
327 };
328
329 static struct quirk_entry quirk_acer_travelmate_2490 = {
330 .mailled = 1,
331 };
332
333 /* This AMW0 laptop has no bluetooth */
334 static struct quirk_entry quirk_medion_md_98300 = {
335 .wireless = 1,
336 };
337
338 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
339 .wireless = 2,
340 };
341
342 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
343 .wireless = 3,
344 };
345
346 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
347 static const struct dmi_system_id acer_blacklist[] __initconst = {
348 {
349 .ident = "Acer Aspire One (SSD)",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
353 },
354 },
355 {
356 .ident = "Acer Aspire One (HDD)",
357 .matches = {
358 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
359 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
360 },
361 },
362 {}
363 };
364
365 static const struct dmi_system_id amw0_whitelist[] __initconst = {
366 {
367 .ident = "Acer",
368 .matches = {
369 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
370 },
371 },
372 {
373 .ident = "Gateway",
374 .matches = {
375 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
376 },
377 },
378 {
379 .ident = "Packard Bell",
380 .matches = {
381 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
382 },
383 },
384 {}
385 };
386
387 /*
388 * This quirk table is only for Acer/Gateway/Packard Bell family
389 * that those machines are supported by acer-wmi driver.
390 */
391 static const struct dmi_system_id acer_quirks[] __initconst = {
392 {
393 .callback = dmi_matched,
394 .ident = "Acer Aspire 1360",
395 .matches = {
396 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
397 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
398 },
399 .driver_data = &quirk_acer_aspire_1520,
400 },
401 {
402 .callback = dmi_matched,
403 .ident = "Acer Aspire 1520",
404 .matches = {
405 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
406 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
407 },
408 .driver_data = &quirk_acer_aspire_1520,
409 },
410 {
411 .callback = dmi_matched,
412 .ident = "Acer Aspire 3100",
413 .matches = {
414 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
415 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
416 },
417 .driver_data = &quirk_acer_travelmate_2490,
418 },
419 {
420 .callback = dmi_matched,
421 .ident = "Acer Aspire 3610",
422 .matches = {
423 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
424 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
425 },
426 .driver_data = &quirk_acer_travelmate_2490,
427 },
428 {
429 .callback = dmi_matched,
430 .ident = "Acer Aspire 5100",
431 .matches = {
432 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
433 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
434 },
435 .driver_data = &quirk_acer_travelmate_2490,
436 },
437 {
438 .callback = dmi_matched,
439 .ident = "Acer Aspire 5610",
440 .matches = {
441 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
442 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
443 },
444 .driver_data = &quirk_acer_travelmate_2490,
445 },
446 {
447 .callback = dmi_matched,
448 .ident = "Acer Aspire 5630",
449 .matches = {
450 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
451 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
452 },
453 .driver_data = &quirk_acer_travelmate_2490,
454 },
455 {
456 .callback = dmi_matched,
457 .ident = "Acer Aspire 5650",
458 .matches = {
459 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
460 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
461 },
462 .driver_data = &quirk_acer_travelmate_2490,
463 },
464 {
465 .callback = dmi_matched,
466 .ident = "Acer Aspire 5680",
467 .matches = {
468 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
469 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
470 },
471 .driver_data = &quirk_acer_travelmate_2490,
472 },
473 {
474 .callback = dmi_matched,
475 .ident = "Acer Aspire 9110",
476 .matches = {
477 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
478 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
479 },
480 .driver_data = &quirk_acer_travelmate_2490,
481 },
482 {
483 .callback = dmi_matched,
484 .ident = "Acer TravelMate 2490",
485 .matches = {
486 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
487 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
488 },
489 .driver_data = &quirk_acer_travelmate_2490,
490 },
491 {
492 .callback = dmi_matched,
493 .ident = "Acer TravelMate 4200",
494 .matches = {
495 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
496 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
497 },
498 .driver_data = &quirk_acer_travelmate_2490,
499 },
500 {}
501 };
502
503 /*
504 * This quirk list is for those non-acer machines that have AMW0_GUID1
505 * but supported by acer-wmi in past days. Keeping this quirk list here
506 * is only for backward compatible. Please do not add new machine to
507 * here anymore. Those non-acer machines should be supported by
508 * appropriate wmi drivers.
509 */
510 static const struct dmi_system_id non_acer_quirks[] __initconst = {
511 {
512 .callback = dmi_matched,
513 .ident = "Fujitsu Siemens Amilo Li 1718",
514 .matches = {
515 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
516 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
517 },
518 .driver_data = &quirk_fujitsu_amilo_li_1718,
519 },
520 {
521 .callback = dmi_matched,
522 .ident = "Medion MD 98300",
523 .matches = {
524 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
525 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
526 },
527 .driver_data = &quirk_medion_md_98300,
528 },
529 {
530 .callback = dmi_matched,
531 .ident = "Lenovo Ideapad S205",
532 .matches = {
533 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
534 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
535 },
536 .driver_data = &quirk_lenovo_ideapad_s205,
537 },
538 {
539 .callback = dmi_matched,
540 .ident = "Lenovo Ideapad S205 (Brazos)",
541 .matches = {
542 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
543 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
544 },
545 .driver_data = &quirk_lenovo_ideapad_s205,
546 },
547 {
548 .callback = dmi_matched,
549 .ident = "Lenovo 3000 N200",
550 .matches = {
551 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
552 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
553 },
554 .driver_data = &quirk_fujitsu_amilo_li_1718,
555 },
556 {
557 .callback = dmi_matched,
558 .ident = "Lenovo Ideapad S205-10382JG",
559 .matches = {
560 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
561 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
562 },
563 .driver_data = &quirk_lenovo_ideapad_s205,
564 },
565 {
566 .callback = dmi_matched,
567 .ident = "Lenovo Ideapad S205-1038DPG",
568 .matches = {
569 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
570 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
571 },
572 .driver_data = &quirk_lenovo_ideapad_s205,
573 },
574 {}
575 };
576
577 static int __init
video_set_backlight_video_vendor(const struct dmi_system_id * d)578 video_set_backlight_video_vendor(const struct dmi_system_id *d)
579 {
580 interface->capability &= ~ACER_CAP_BRIGHTNESS;
581 pr_info("Brightness must be controlled by generic video driver\n");
582 return 0;
583 }
584
585 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
586 {
587 .callback = video_set_backlight_video_vendor,
588 .ident = "Acer TravelMate 4750",
589 .matches = {
590 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
591 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
592 },
593 },
594 {
595 .callback = video_set_backlight_video_vendor,
596 .ident = "Acer Extensa 5235",
597 .matches = {
598 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
599 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
600 },
601 },
602 {
603 .callback = video_set_backlight_video_vendor,
604 .ident = "Acer TravelMate 5760",
605 .matches = {
606 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
607 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
608 },
609 },
610 {
611 .callback = video_set_backlight_video_vendor,
612 .ident = "Acer Aspire 5750",
613 .matches = {
614 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
615 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
616 },
617 },
618 {
619 .callback = video_set_backlight_video_vendor,
620 .ident = "Acer Aspire 5741",
621 .matches = {
622 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
623 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
624 },
625 },
626 {
627 /*
628 * Note no video_set_backlight_video_vendor, we must use the
629 * acer interface, as there is no native backlight interface.
630 */
631 .ident = "Acer KAV80",
632 .matches = {
633 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
634 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
635 },
636 },
637 {}
638 };
639
640 /* Find which quirks are needed for a particular vendor/ model pair */
find_quirks(void)641 static void __init find_quirks(void)
642 {
643 if (!force_series) {
644 dmi_check_system(acer_quirks);
645 dmi_check_system(non_acer_quirks);
646 } else if (force_series == 2490) {
647 quirks = &quirk_acer_travelmate_2490;
648 }
649
650 if (quirks == NULL)
651 quirks = &quirk_unknown;
652
653 set_quirks();
654 }
655
656 /*
657 * General interface convenience methods
658 */
659
has_cap(u32 cap)660 static bool has_cap(u32 cap)
661 {
662 return interface->capability & cap;
663 }
664
665 /*
666 * AMW0 (V1) interface
667 */
668 struct wmab_args {
669 u32 eax;
670 u32 ebx;
671 u32 ecx;
672 u32 edx;
673 };
674
675 struct wmab_ret {
676 u32 eax;
677 u32 ebx;
678 u32 ecx;
679 u32 edx;
680 u32 eex;
681 };
682
wmab_execute(struct wmab_args * regbuf,struct acpi_buffer * result)683 static acpi_status wmab_execute(struct wmab_args *regbuf,
684 struct acpi_buffer *result)
685 {
686 struct acpi_buffer input;
687 acpi_status status;
688 input.length = sizeof(struct wmab_args);
689 input.pointer = (u8 *)regbuf;
690
691 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
692
693 return status;
694 }
695
AMW0_get_u32(u32 * value,u32 cap)696 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
697 {
698 int err;
699 u8 result;
700
701 switch (cap) {
702 case ACER_CAP_MAILLED:
703 switch (quirks->mailled) {
704 default:
705 err = ec_read(0xA, &result);
706 if (err)
707 return AE_ERROR;
708 *value = (result >> 7) & 0x1;
709 return AE_OK;
710 }
711 break;
712 case ACER_CAP_WIRELESS:
713 switch (quirks->wireless) {
714 case 1:
715 err = ec_read(0x7B, &result);
716 if (err)
717 return AE_ERROR;
718 *value = result & 0x1;
719 return AE_OK;
720 case 2:
721 err = ec_read(0x71, &result);
722 if (err)
723 return AE_ERROR;
724 *value = result & 0x1;
725 return AE_OK;
726 case 3:
727 err = ec_read(0x78, &result);
728 if (err)
729 return AE_ERROR;
730 *value = result & 0x1;
731 return AE_OK;
732 default:
733 err = ec_read(0xA, &result);
734 if (err)
735 return AE_ERROR;
736 *value = (result >> 2) & 0x1;
737 return AE_OK;
738 }
739 break;
740 case ACER_CAP_BLUETOOTH:
741 switch (quirks->bluetooth) {
742 default:
743 err = ec_read(0xA, &result);
744 if (err)
745 return AE_ERROR;
746 *value = (result >> 4) & 0x1;
747 return AE_OK;
748 }
749 break;
750 case ACER_CAP_BRIGHTNESS:
751 switch (quirks->brightness) {
752 default:
753 err = ec_read(0x83, &result);
754 if (err)
755 return AE_ERROR;
756 *value = result;
757 return AE_OK;
758 }
759 break;
760 default:
761 return AE_ERROR;
762 }
763 return AE_OK;
764 }
765
AMW0_set_u32(u32 value,u32 cap)766 static acpi_status AMW0_set_u32(u32 value, u32 cap)
767 {
768 struct wmab_args args;
769
770 args.eax = ACER_AMW0_WRITE;
771 args.ebx = value ? (1<<8) : 0;
772 args.ecx = args.edx = 0;
773
774 switch (cap) {
775 case ACER_CAP_MAILLED:
776 if (value > 1)
777 return AE_BAD_PARAMETER;
778 args.ebx |= ACER_AMW0_MAILLED_MASK;
779 break;
780 case ACER_CAP_WIRELESS:
781 if (value > 1)
782 return AE_BAD_PARAMETER;
783 args.ebx |= ACER_AMW0_WIRELESS_MASK;
784 break;
785 case ACER_CAP_BLUETOOTH:
786 if (value > 1)
787 return AE_BAD_PARAMETER;
788 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
789 break;
790 case ACER_CAP_BRIGHTNESS:
791 if (value > max_brightness)
792 return AE_BAD_PARAMETER;
793 switch (quirks->brightness) {
794 default:
795 return ec_write(0x83, value);
796 break;
797 }
798 default:
799 return AE_ERROR;
800 }
801
802 /* Actually do the set */
803 return wmab_execute(&args, NULL);
804 }
805
AMW0_find_mailled(void)806 static acpi_status __init AMW0_find_mailled(void)
807 {
808 struct wmab_args args;
809 struct wmab_ret ret;
810 acpi_status status = AE_OK;
811 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
812 union acpi_object *obj;
813
814 args.eax = 0x86;
815 args.ebx = args.ecx = args.edx = 0;
816
817 status = wmab_execute(&args, &out);
818 if (ACPI_FAILURE(status))
819 return status;
820
821 obj = (union acpi_object *) out.pointer;
822 if (obj && obj->type == ACPI_TYPE_BUFFER &&
823 obj->buffer.length == sizeof(struct wmab_ret)) {
824 ret = *((struct wmab_ret *) obj->buffer.pointer);
825 } else {
826 kfree(out.pointer);
827 return AE_ERROR;
828 }
829
830 if (ret.eex & 0x1)
831 interface->capability |= ACER_CAP_MAILLED;
832
833 kfree(out.pointer);
834
835 return AE_OK;
836 }
837
838 static const struct acpi_device_id norfkill_ids[] __initconst = {
839 { "VPC2004", 0},
840 { "IBM0068", 0},
841 { "LEN0068", 0},
842 { "SNY5001", 0}, /* sony-laptop in charge */
843 { "HPQ6601", 0},
844 { "", 0},
845 };
846
AMW0_set_cap_acpi_check_device(void)847 static int __init AMW0_set_cap_acpi_check_device(void)
848 {
849 const struct acpi_device_id *id;
850
851 for (id = norfkill_ids; id->id[0]; id++)
852 if (acpi_dev_found(id->id))
853 return true;
854
855 return false;
856 }
857
AMW0_set_capabilities(void)858 static acpi_status __init AMW0_set_capabilities(void)
859 {
860 struct wmab_args args;
861 struct wmab_ret ret;
862 acpi_status status;
863 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
864 union acpi_object *obj;
865
866 /*
867 * On laptops with this strange GUID (non Acer), normal probing doesn't
868 * work.
869 */
870 if (wmi_has_guid(AMW0_GUID2)) {
871 if ((quirks != &quirk_unknown) ||
872 !AMW0_set_cap_acpi_check_device())
873 interface->capability |= ACER_CAP_WIRELESS;
874 return AE_OK;
875 }
876
877 args.eax = ACER_AMW0_WRITE;
878 args.ecx = args.edx = 0;
879
880 args.ebx = 0xa2 << 8;
881 args.ebx |= ACER_AMW0_WIRELESS_MASK;
882
883 status = wmab_execute(&args, &out);
884 if (ACPI_FAILURE(status))
885 return status;
886
887 obj = out.pointer;
888 if (obj && obj->type == ACPI_TYPE_BUFFER &&
889 obj->buffer.length == sizeof(struct wmab_ret)) {
890 ret = *((struct wmab_ret *) obj->buffer.pointer);
891 } else {
892 status = AE_ERROR;
893 goto out;
894 }
895
896 if (ret.eax & 0x1)
897 interface->capability |= ACER_CAP_WIRELESS;
898
899 args.ebx = 2 << 8;
900 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
901
902 /*
903 * It's ok to use existing buffer for next wmab_execute call.
904 * But we need to kfree(out.pointer) if next wmab_execute fail.
905 */
906 status = wmab_execute(&args, &out);
907 if (ACPI_FAILURE(status))
908 goto out;
909
910 obj = (union acpi_object *) out.pointer;
911 if (obj && obj->type == ACPI_TYPE_BUFFER
912 && obj->buffer.length == sizeof(struct wmab_ret)) {
913 ret = *((struct wmab_ret *) obj->buffer.pointer);
914 } else {
915 status = AE_ERROR;
916 goto out;
917 }
918
919 if (ret.eax & 0x1)
920 interface->capability |= ACER_CAP_BLUETOOTH;
921
922 /*
923 * This appears to be safe to enable, since all Wistron based laptops
924 * appear to use the same EC register for brightness, even if they
925 * differ for wireless, etc
926 */
927 if (quirks->brightness >= 0)
928 interface->capability |= ACER_CAP_BRIGHTNESS;
929
930 status = AE_OK;
931 out:
932 kfree(out.pointer);
933 return status;
934 }
935
936 static struct wmi_interface AMW0_interface = {
937 .type = ACER_AMW0,
938 };
939
940 static struct wmi_interface AMW0_V2_interface = {
941 .type = ACER_AMW0_V2,
942 };
943
944 /*
945 * New interface (The WMID interface)
946 */
947 static acpi_status
WMI_execute_u32(u32 method_id,u32 in,u32 * out)948 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
949 {
950 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
951 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
952 union acpi_object *obj;
953 u32 tmp = 0;
954 acpi_status status;
955
956 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
957
958 if (ACPI_FAILURE(status))
959 return status;
960
961 obj = (union acpi_object *) result.pointer;
962 if (obj) {
963 if (obj->type == ACPI_TYPE_BUFFER &&
964 (obj->buffer.length == sizeof(u32) ||
965 obj->buffer.length == sizeof(u64))) {
966 tmp = *((u32 *) obj->buffer.pointer);
967 } else if (obj->type == ACPI_TYPE_INTEGER) {
968 tmp = (u32) obj->integer.value;
969 }
970 }
971
972 if (out)
973 *out = tmp;
974
975 kfree(result.pointer);
976
977 return status;
978 }
979
WMID_get_u32(u32 * value,u32 cap)980 static acpi_status WMID_get_u32(u32 *value, u32 cap)
981 {
982 acpi_status status;
983 u8 tmp;
984 u32 result, method_id = 0;
985
986 switch (cap) {
987 case ACER_CAP_WIRELESS:
988 method_id = ACER_WMID_GET_WIRELESS_METHODID;
989 break;
990 case ACER_CAP_BLUETOOTH:
991 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
992 break;
993 case ACER_CAP_BRIGHTNESS:
994 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
995 break;
996 case ACER_CAP_THREEG:
997 method_id = ACER_WMID_GET_THREEG_METHODID;
998 break;
999 case ACER_CAP_MAILLED:
1000 if (quirks->mailled == 1) {
1001 ec_read(0x9f, &tmp);
1002 *value = tmp & 0x1;
1003 return 0;
1004 }
1005 fallthrough;
1006 default:
1007 return AE_ERROR;
1008 }
1009 status = WMI_execute_u32(method_id, 0, &result);
1010
1011 if (ACPI_SUCCESS(status))
1012 *value = (u8)result;
1013
1014 return status;
1015 }
1016
WMID_set_u32(u32 value,u32 cap)1017 static acpi_status WMID_set_u32(u32 value, u32 cap)
1018 {
1019 u32 method_id = 0;
1020 char param;
1021
1022 switch (cap) {
1023 case ACER_CAP_BRIGHTNESS:
1024 if (value > max_brightness)
1025 return AE_BAD_PARAMETER;
1026 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1027 break;
1028 case ACER_CAP_WIRELESS:
1029 if (value > 1)
1030 return AE_BAD_PARAMETER;
1031 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1032 break;
1033 case ACER_CAP_BLUETOOTH:
1034 if (value > 1)
1035 return AE_BAD_PARAMETER;
1036 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1037 break;
1038 case ACER_CAP_THREEG:
1039 if (value > 1)
1040 return AE_BAD_PARAMETER;
1041 method_id = ACER_WMID_SET_THREEG_METHODID;
1042 break;
1043 case ACER_CAP_MAILLED:
1044 if (value > 1)
1045 return AE_BAD_PARAMETER;
1046 if (quirks->mailled == 1) {
1047 param = value ? 0x92 : 0x93;
1048 i8042_lock_chip();
1049 i8042_command(¶m, 0x1059);
1050 i8042_unlock_chip();
1051 return 0;
1052 }
1053 break;
1054 default:
1055 return AE_ERROR;
1056 }
1057 return WMI_execute_u32(method_id, (u32)value, NULL);
1058 }
1059
wmid3_get_device_status(u32 * value,u16 device)1060 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1061 {
1062 struct wmid3_gds_return_value return_value;
1063 acpi_status status;
1064 union acpi_object *obj;
1065 struct wmid3_gds_get_input_param params = {
1066 .function_num = 0x1,
1067 .hotkey_number = commun_fn_key_number,
1068 .devices = device,
1069 };
1070 struct acpi_buffer input = {
1071 sizeof(struct wmid3_gds_get_input_param),
1072 ¶ms
1073 };
1074 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1075
1076 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1077 if (ACPI_FAILURE(status))
1078 return status;
1079
1080 obj = output.pointer;
1081
1082 if (!obj)
1083 return AE_ERROR;
1084 else if (obj->type != ACPI_TYPE_BUFFER) {
1085 kfree(obj);
1086 return AE_ERROR;
1087 }
1088 if (obj->buffer.length != 8) {
1089 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1090 kfree(obj);
1091 return AE_ERROR;
1092 }
1093
1094 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1095 kfree(obj);
1096
1097 if (return_value.error_code || return_value.ec_return_value)
1098 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1099 device,
1100 return_value.error_code,
1101 return_value.ec_return_value);
1102 else
1103 *value = !!(return_value.devices & device);
1104
1105 return status;
1106 }
1107
wmid_v2_get_u32(u32 * value,u32 cap)1108 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1109 {
1110 u16 device;
1111
1112 switch (cap) {
1113 case ACER_CAP_WIRELESS:
1114 device = ACER_WMID3_GDS_WIRELESS;
1115 break;
1116 case ACER_CAP_BLUETOOTH:
1117 device = ACER_WMID3_GDS_BLUETOOTH;
1118 break;
1119 case ACER_CAP_THREEG:
1120 device = ACER_WMID3_GDS_THREEG;
1121 break;
1122 default:
1123 return AE_ERROR;
1124 }
1125 return wmid3_get_device_status(value, device);
1126 }
1127
wmid3_set_device_status(u32 value,u16 device)1128 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1129 {
1130 struct wmid3_gds_return_value return_value;
1131 acpi_status status;
1132 union acpi_object *obj;
1133 u16 devices;
1134 struct wmid3_gds_get_input_param get_params = {
1135 .function_num = 0x1,
1136 .hotkey_number = commun_fn_key_number,
1137 .devices = commun_func_bitmap,
1138 };
1139 struct acpi_buffer get_input = {
1140 sizeof(struct wmid3_gds_get_input_param),
1141 &get_params
1142 };
1143 struct wmid3_gds_set_input_param set_params = {
1144 .function_num = 0x2,
1145 .hotkey_number = commun_fn_key_number,
1146 .devices = commun_func_bitmap,
1147 };
1148 struct acpi_buffer set_input = {
1149 sizeof(struct wmid3_gds_set_input_param),
1150 &set_params
1151 };
1152 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1153 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1154
1155 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1156 if (ACPI_FAILURE(status))
1157 return status;
1158
1159 obj = output.pointer;
1160
1161 if (!obj)
1162 return AE_ERROR;
1163 else if (obj->type != ACPI_TYPE_BUFFER) {
1164 kfree(obj);
1165 return AE_ERROR;
1166 }
1167 if (obj->buffer.length != 8) {
1168 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1169 kfree(obj);
1170 return AE_ERROR;
1171 }
1172
1173 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1174 kfree(obj);
1175
1176 if (return_value.error_code || return_value.ec_return_value) {
1177 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1178 return_value.error_code,
1179 return_value.ec_return_value);
1180 return status;
1181 }
1182
1183 devices = return_value.devices;
1184 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1185
1186 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1187 if (ACPI_FAILURE(status))
1188 return status;
1189
1190 obj = output2.pointer;
1191
1192 if (!obj)
1193 return AE_ERROR;
1194 else if (obj->type != ACPI_TYPE_BUFFER) {
1195 kfree(obj);
1196 return AE_ERROR;
1197 }
1198 if (obj->buffer.length != 4) {
1199 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1200 kfree(obj);
1201 return AE_ERROR;
1202 }
1203
1204 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1205 kfree(obj);
1206
1207 if (return_value.error_code || return_value.ec_return_value)
1208 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1209 return_value.error_code,
1210 return_value.ec_return_value);
1211
1212 return status;
1213 }
1214
wmid_v2_set_u32(u32 value,u32 cap)1215 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1216 {
1217 u16 device;
1218
1219 switch (cap) {
1220 case ACER_CAP_WIRELESS:
1221 device = ACER_WMID3_GDS_WIRELESS;
1222 break;
1223 case ACER_CAP_BLUETOOTH:
1224 device = ACER_WMID3_GDS_BLUETOOTH;
1225 break;
1226 case ACER_CAP_THREEG:
1227 device = ACER_WMID3_GDS_THREEG;
1228 break;
1229 default:
1230 return AE_ERROR;
1231 }
1232 return wmid3_set_device_status(value, device);
1233 }
1234
type_aa_dmi_decode(const struct dmi_header * header,void * d)1235 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1236 {
1237 struct hotkey_function_type_aa *type_aa;
1238
1239 /* We are looking for OEM-specific Type AAh */
1240 if (header->type != 0xAA)
1241 return;
1242
1243 has_type_aa = true;
1244 type_aa = (struct hotkey_function_type_aa *) header;
1245
1246 pr_info("Function bitmap for Communication Button: 0x%x\n",
1247 type_aa->commun_func_bitmap);
1248 commun_func_bitmap = type_aa->commun_func_bitmap;
1249
1250 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1251 interface->capability |= ACER_CAP_WIRELESS;
1252 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1253 interface->capability |= ACER_CAP_THREEG;
1254 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1255 interface->capability |= ACER_CAP_BLUETOOTH;
1256 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) {
1257 interface->capability |= ACER_CAP_RFBTN;
1258 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1259 }
1260
1261 commun_fn_key_number = type_aa->commun_fn_key_number;
1262 }
1263
WMID_set_capabilities(void)1264 static acpi_status __init WMID_set_capabilities(void)
1265 {
1266 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1267 union acpi_object *obj;
1268 acpi_status status;
1269 u32 devices;
1270
1271 status = wmi_query_block(WMID_GUID2, 0, &out);
1272 if (ACPI_FAILURE(status))
1273 return status;
1274
1275 obj = (union acpi_object *) out.pointer;
1276 if (obj) {
1277 if (obj->type == ACPI_TYPE_BUFFER &&
1278 (obj->buffer.length == sizeof(u32) ||
1279 obj->buffer.length == sizeof(u64))) {
1280 devices = *((u32 *) obj->buffer.pointer);
1281 } else if (obj->type == ACPI_TYPE_INTEGER) {
1282 devices = (u32) obj->integer.value;
1283 } else {
1284 kfree(out.pointer);
1285 return AE_ERROR;
1286 }
1287 } else {
1288 kfree(out.pointer);
1289 return AE_ERROR;
1290 }
1291
1292 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1293 if (devices & 0x07)
1294 interface->capability |= ACER_CAP_WIRELESS;
1295 if (devices & 0x40)
1296 interface->capability |= ACER_CAP_THREEG;
1297 if (devices & 0x10)
1298 interface->capability |= ACER_CAP_BLUETOOTH;
1299
1300 if (!(devices & 0x20))
1301 max_brightness = 0x9;
1302
1303 kfree(out.pointer);
1304 return status;
1305 }
1306
1307 static struct wmi_interface wmid_interface = {
1308 .type = ACER_WMID,
1309 };
1310
1311 static struct wmi_interface wmid_v2_interface = {
1312 .type = ACER_WMID_v2,
1313 };
1314
1315 /*
1316 * Generic Device (interface-independent)
1317 */
1318
get_u32(u32 * value,u32 cap)1319 static acpi_status get_u32(u32 *value, u32 cap)
1320 {
1321 acpi_status status = AE_ERROR;
1322
1323 switch (interface->type) {
1324 case ACER_AMW0:
1325 status = AMW0_get_u32(value, cap);
1326 break;
1327 case ACER_AMW0_V2:
1328 if (cap == ACER_CAP_MAILLED) {
1329 status = AMW0_get_u32(value, cap);
1330 break;
1331 }
1332 fallthrough;
1333 case ACER_WMID:
1334 status = WMID_get_u32(value, cap);
1335 break;
1336 case ACER_WMID_v2:
1337 if (cap & (ACER_CAP_WIRELESS |
1338 ACER_CAP_BLUETOOTH |
1339 ACER_CAP_THREEG))
1340 status = wmid_v2_get_u32(value, cap);
1341 else if (wmi_has_guid(WMID_GUID2))
1342 status = WMID_get_u32(value, cap);
1343 break;
1344 }
1345
1346 return status;
1347 }
1348
set_u32(u32 value,u32 cap)1349 static acpi_status set_u32(u32 value, u32 cap)
1350 {
1351 acpi_status status;
1352
1353 if (interface->capability & cap) {
1354 switch (interface->type) {
1355 case ACER_AMW0:
1356 return AMW0_set_u32(value, cap);
1357 case ACER_AMW0_V2:
1358 if (cap == ACER_CAP_MAILLED)
1359 return AMW0_set_u32(value, cap);
1360
1361 /*
1362 * On some models, some WMID methods don't toggle
1363 * properly. For those cases, we want to run the AMW0
1364 * method afterwards to be certain we've really toggled
1365 * the device state.
1366 */
1367 if (cap == ACER_CAP_WIRELESS ||
1368 cap == ACER_CAP_BLUETOOTH) {
1369 status = WMID_set_u32(value, cap);
1370 if (ACPI_FAILURE(status))
1371 return status;
1372
1373 return AMW0_set_u32(value, cap);
1374 }
1375 fallthrough;
1376 case ACER_WMID:
1377 return WMID_set_u32(value, cap);
1378 case ACER_WMID_v2:
1379 if (cap & (ACER_CAP_WIRELESS |
1380 ACER_CAP_BLUETOOTH |
1381 ACER_CAP_THREEG))
1382 return wmid_v2_set_u32(value, cap);
1383 else if (wmi_has_guid(WMID_GUID2))
1384 return WMID_set_u32(value, cap);
1385 fallthrough;
1386 default:
1387 return AE_BAD_PARAMETER;
1388 }
1389 }
1390 return AE_BAD_PARAMETER;
1391 }
1392
acer_commandline_init(void)1393 static void __init acer_commandline_init(void)
1394 {
1395 /*
1396 * These will all fail silently if the value given is invalid, or the
1397 * capability isn't available on the given interface
1398 */
1399 if (mailled >= 0)
1400 set_u32(mailled, ACER_CAP_MAILLED);
1401 if (!has_type_aa && threeg >= 0)
1402 set_u32(threeg, ACER_CAP_THREEG);
1403 if (brightness >= 0)
1404 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1405 }
1406
1407 /*
1408 * LED device (Mail LED only, no other LEDs known yet)
1409 */
mail_led_set(struct led_classdev * led_cdev,enum led_brightness value)1410 static void mail_led_set(struct led_classdev *led_cdev,
1411 enum led_brightness value)
1412 {
1413 set_u32(value, ACER_CAP_MAILLED);
1414 }
1415
1416 static struct led_classdev mail_led = {
1417 .name = "acer-wmi::mail",
1418 .brightness_set = mail_led_set,
1419 };
1420
acer_led_init(struct device * dev)1421 static int acer_led_init(struct device *dev)
1422 {
1423 return led_classdev_register(dev, &mail_led);
1424 }
1425
acer_led_exit(void)1426 static void acer_led_exit(void)
1427 {
1428 set_u32(LED_OFF, ACER_CAP_MAILLED);
1429 led_classdev_unregister(&mail_led);
1430 }
1431
1432 /*
1433 * Backlight device
1434 */
1435 static struct backlight_device *acer_backlight_device;
1436
read_brightness(struct backlight_device * bd)1437 static int read_brightness(struct backlight_device *bd)
1438 {
1439 u32 value;
1440 get_u32(&value, ACER_CAP_BRIGHTNESS);
1441 return value;
1442 }
1443
update_bl_status(struct backlight_device * bd)1444 static int update_bl_status(struct backlight_device *bd)
1445 {
1446 int intensity = bd->props.brightness;
1447
1448 if (bd->props.power != FB_BLANK_UNBLANK)
1449 intensity = 0;
1450 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1451 intensity = 0;
1452
1453 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1454
1455 return 0;
1456 }
1457
1458 static const struct backlight_ops acer_bl_ops = {
1459 .get_brightness = read_brightness,
1460 .update_status = update_bl_status,
1461 };
1462
acer_backlight_init(struct device * dev)1463 static int acer_backlight_init(struct device *dev)
1464 {
1465 struct backlight_properties props;
1466 struct backlight_device *bd;
1467
1468 memset(&props, 0, sizeof(struct backlight_properties));
1469 props.type = BACKLIGHT_PLATFORM;
1470 props.max_brightness = max_brightness;
1471 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1472 &props);
1473 if (IS_ERR(bd)) {
1474 pr_err("Could not register Acer backlight device\n");
1475 acer_backlight_device = NULL;
1476 return PTR_ERR(bd);
1477 }
1478
1479 acer_backlight_device = bd;
1480
1481 bd->props.power = FB_BLANK_UNBLANK;
1482 bd->props.brightness = read_brightness(bd);
1483 backlight_update_status(bd);
1484 return 0;
1485 }
1486
acer_backlight_exit(void)1487 static void acer_backlight_exit(void)
1488 {
1489 backlight_device_unregister(acer_backlight_device);
1490 }
1491
1492 /*
1493 * Accelerometer device
1494 */
1495 static acpi_handle gsensor_handle;
1496
acer_gsensor_init(void)1497 static int acer_gsensor_init(void)
1498 {
1499 acpi_status status;
1500 struct acpi_buffer output;
1501 union acpi_object out_obj;
1502
1503 output.length = sizeof(out_obj);
1504 output.pointer = &out_obj;
1505 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1506 if (ACPI_FAILURE(status))
1507 return -1;
1508
1509 return 0;
1510 }
1511
acer_gsensor_open(struct input_dev * input)1512 static int acer_gsensor_open(struct input_dev *input)
1513 {
1514 return acer_gsensor_init();
1515 }
1516
acer_gsensor_event(void)1517 static int acer_gsensor_event(void)
1518 {
1519 acpi_status status;
1520 struct acpi_buffer output;
1521 union acpi_object out_obj[5];
1522
1523 if (!has_cap(ACER_CAP_ACCEL))
1524 return -1;
1525
1526 output.length = sizeof(out_obj);
1527 output.pointer = out_obj;
1528
1529 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1530 if (ACPI_FAILURE(status))
1531 return -1;
1532
1533 if (out_obj->package.count != 4)
1534 return -1;
1535
1536 input_report_abs(acer_wmi_accel_dev, ABS_X,
1537 (s16)out_obj->package.elements[0].integer.value);
1538 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1539 (s16)out_obj->package.elements[1].integer.value);
1540 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1541 (s16)out_obj->package.elements[2].integer.value);
1542 input_sync(acer_wmi_accel_dev);
1543 return 0;
1544 }
1545
1546 /*
1547 * Rfkill devices
1548 */
1549 static void acer_rfkill_update(struct work_struct *ignored);
1550 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
acer_rfkill_update(struct work_struct * ignored)1551 static void acer_rfkill_update(struct work_struct *ignored)
1552 {
1553 u32 state;
1554 acpi_status status;
1555
1556 if (has_cap(ACER_CAP_WIRELESS)) {
1557 status = get_u32(&state, ACER_CAP_WIRELESS);
1558 if (ACPI_SUCCESS(status)) {
1559 if (quirks->wireless == 3)
1560 rfkill_set_hw_state(wireless_rfkill, !state);
1561 else
1562 rfkill_set_sw_state(wireless_rfkill, !state);
1563 }
1564 }
1565
1566 if (has_cap(ACER_CAP_BLUETOOTH)) {
1567 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1568 if (ACPI_SUCCESS(status))
1569 rfkill_set_sw_state(bluetooth_rfkill, !state);
1570 }
1571
1572 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1573 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1574 if (ACPI_SUCCESS(status))
1575 rfkill_set_sw_state(threeg_rfkill, !state);
1576 }
1577
1578 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1579 }
1580
acer_rfkill_set(void * data,bool blocked)1581 static int acer_rfkill_set(void *data, bool blocked)
1582 {
1583 acpi_status status;
1584 u32 cap = (unsigned long)data;
1585
1586 if (rfkill_inited) {
1587 status = set_u32(!blocked, cap);
1588 if (ACPI_FAILURE(status))
1589 return -ENODEV;
1590 }
1591
1592 return 0;
1593 }
1594
1595 static const struct rfkill_ops acer_rfkill_ops = {
1596 .set_block = acer_rfkill_set,
1597 };
1598
acer_rfkill_register(struct device * dev,enum rfkill_type type,char * name,u32 cap)1599 static struct rfkill *acer_rfkill_register(struct device *dev,
1600 enum rfkill_type type,
1601 char *name, u32 cap)
1602 {
1603 int err;
1604 struct rfkill *rfkill_dev;
1605 u32 state;
1606 acpi_status status;
1607
1608 rfkill_dev = rfkill_alloc(name, dev, type,
1609 &acer_rfkill_ops,
1610 (void *)(unsigned long)cap);
1611 if (!rfkill_dev)
1612 return ERR_PTR(-ENOMEM);
1613
1614 status = get_u32(&state, cap);
1615
1616 err = rfkill_register(rfkill_dev);
1617 if (err) {
1618 rfkill_destroy(rfkill_dev);
1619 return ERR_PTR(err);
1620 }
1621
1622 if (ACPI_SUCCESS(status))
1623 rfkill_set_sw_state(rfkill_dev, !state);
1624
1625 return rfkill_dev;
1626 }
1627
acer_rfkill_init(struct device * dev)1628 static int acer_rfkill_init(struct device *dev)
1629 {
1630 int err;
1631
1632 if (has_cap(ACER_CAP_WIRELESS)) {
1633 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1634 "acer-wireless", ACER_CAP_WIRELESS);
1635 if (IS_ERR(wireless_rfkill)) {
1636 err = PTR_ERR(wireless_rfkill);
1637 goto error_wireless;
1638 }
1639 }
1640
1641 if (has_cap(ACER_CAP_BLUETOOTH)) {
1642 bluetooth_rfkill = acer_rfkill_register(dev,
1643 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1644 ACER_CAP_BLUETOOTH);
1645 if (IS_ERR(bluetooth_rfkill)) {
1646 err = PTR_ERR(bluetooth_rfkill);
1647 goto error_bluetooth;
1648 }
1649 }
1650
1651 if (has_cap(ACER_CAP_THREEG)) {
1652 threeg_rfkill = acer_rfkill_register(dev,
1653 RFKILL_TYPE_WWAN, "acer-threeg",
1654 ACER_CAP_THREEG);
1655 if (IS_ERR(threeg_rfkill)) {
1656 err = PTR_ERR(threeg_rfkill);
1657 goto error_threeg;
1658 }
1659 }
1660
1661 rfkill_inited = true;
1662
1663 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1664 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1665 schedule_delayed_work(&acer_rfkill_work,
1666 round_jiffies_relative(HZ));
1667
1668 return 0;
1669
1670 error_threeg:
1671 if (has_cap(ACER_CAP_BLUETOOTH)) {
1672 rfkill_unregister(bluetooth_rfkill);
1673 rfkill_destroy(bluetooth_rfkill);
1674 }
1675 error_bluetooth:
1676 if (has_cap(ACER_CAP_WIRELESS)) {
1677 rfkill_unregister(wireless_rfkill);
1678 rfkill_destroy(wireless_rfkill);
1679 }
1680 error_wireless:
1681 return err;
1682 }
1683
acer_rfkill_exit(void)1684 static void acer_rfkill_exit(void)
1685 {
1686 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1687 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1688 cancel_delayed_work_sync(&acer_rfkill_work);
1689
1690 if (has_cap(ACER_CAP_WIRELESS)) {
1691 rfkill_unregister(wireless_rfkill);
1692 rfkill_destroy(wireless_rfkill);
1693 }
1694
1695 if (has_cap(ACER_CAP_BLUETOOTH)) {
1696 rfkill_unregister(bluetooth_rfkill);
1697 rfkill_destroy(bluetooth_rfkill);
1698 }
1699
1700 if (has_cap(ACER_CAP_THREEG)) {
1701 rfkill_unregister(threeg_rfkill);
1702 rfkill_destroy(threeg_rfkill);
1703 }
1704 return;
1705 }
1706
acer_wmi_notify(u32 value,void * context)1707 static void acer_wmi_notify(u32 value, void *context)
1708 {
1709 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1710 union acpi_object *obj;
1711 struct event_return_value return_value;
1712 acpi_status status;
1713 u16 device_state;
1714 const struct key_entry *key;
1715 u32 scancode;
1716
1717 status = wmi_get_event_data(value, &response);
1718 if (status != AE_OK) {
1719 pr_warn("bad event status 0x%x\n", status);
1720 return;
1721 }
1722
1723 obj = (union acpi_object *)response.pointer;
1724
1725 if (!obj)
1726 return;
1727 if (obj->type != ACPI_TYPE_BUFFER) {
1728 pr_warn("Unknown response received %d\n", obj->type);
1729 kfree(obj);
1730 return;
1731 }
1732 if (obj->buffer.length != 8) {
1733 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1734 kfree(obj);
1735 return;
1736 }
1737
1738 return_value = *((struct event_return_value *)obj->buffer.pointer);
1739 kfree(obj);
1740
1741 switch (return_value.function) {
1742 case WMID_HOTKEY_EVENT:
1743 device_state = return_value.device_state;
1744 pr_debug("device state: 0x%x\n", device_state);
1745
1746 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1747 return_value.key_num);
1748 if (!key) {
1749 pr_warn("Unknown key number - 0x%x\n",
1750 return_value.key_num);
1751 } else {
1752 scancode = return_value.key_num;
1753 switch (key->keycode) {
1754 case KEY_WLAN:
1755 case KEY_BLUETOOTH:
1756 if (has_cap(ACER_CAP_WIRELESS))
1757 rfkill_set_sw_state(wireless_rfkill,
1758 !(device_state & ACER_WMID3_GDS_WIRELESS));
1759 if (has_cap(ACER_CAP_THREEG))
1760 rfkill_set_sw_state(threeg_rfkill,
1761 !(device_state & ACER_WMID3_GDS_THREEG));
1762 if (has_cap(ACER_CAP_BLUETOOTH))
1763 rfkill_set_sw_state(bluetooth_rfkill,
1764 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1765 break;
1766 case KEY_TOUCHPAD_TOGGLE:
1767 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1768 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1769 }
1770 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1771 }
1772 break;
1773 case WMID_ACCEL_EVENT:
1774 acer_gsensor_event();
1775 break;
1776 default:
1777 pr_warn("Unknown function number - %d - %d\n",
1778 return_value.function, return_value.key_num);
1779 break;
1780 }
1781 }
1782
1783 static acpi_status __init
wmid3_set_function_mode(struct func_input_params * params,struct func_return_value * return_value)1784 wmid3_set_function_mode(struct func_input_params *params,
1785 struct func_return_value *return_value)
1786 {
1787 acpi_status status;
1788 union acpi_object *obj;
1789
1790 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1791 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1792
1793 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1794 if (ACPI_FAILURE(status))
1795 return status;
1796
1797 obj = output.pointer;
1798
1799 if (!obj)
1800 return AE_ERROR;
1801 else if (obj->type != ACPI_TYPE_BUFFER) {
1802 kfree(obj);
1803 return AE_ERROR;
1804 }
1805 if (obj->buffer.length != 4) {
1806 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1807 kfree(obj);
1808 return AE_ERROR;
1809 }
1810
1811 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1812 kfree(obj);
1813
1814 return status;
1815 }
1816
acer_wmi_enable_ec_raw(void)1817 static int __init acer_wmi_enable_ec_raw(void)
1818 {
1819 struct func_return_value return_value;
1820 acpi_status status;
1821 struct func_input_params params = {
1822 .function_num = 0x1,
1823 .commun_devices = 0xFFFF,
1824 .devices = 0xFFFF,
1825 .app_status = 0x00, /* Launch Manager Deactive */
1826 .app_mask = 0x01,
1827 };
1828
1829 status = wmid3_set_function_mode(¶ms, &return_value);
1830
1831 if (return_value.error_code || return_value.ec_return_value)
1832 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1833 return_value.error_code,
1834 return_value.ec_return_value);
1835 else
1836 pr_info("Enabled EC raw mode\n");
1837
1838 return status;
1839 }
1840
acer_wmi_enable_lm(void)1841 static int __init acer_wmi_enable_lm(void)
1842 {
1843 struct func_return_value return_value;
1844 acpi_status status;
1845 struct func_input_params params = {
1846 .function_num = 0x1,
1847 .commun_devices = 0xFFFF,
1848 .devices = 0xFFFF,
1849 .app_status = 0x01, /* Launch Manager Active */
1850 .app_mask = 0x01,
1851 };
1852
1853 status = wmid3_set_function_mode(¶ms, &return_value);
1854
1855 if (return_value.error_code || return_value.ec_return_value)
1856 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1857 return_value.error_code,
1858 return_value.ec_return_value);
1859
1860 return status;
1861 }
1862
acer_wmi_enable_rf_button(void)1863 static int __init acer_wmi_enable_rf_button(void)
1864 {
1865 struct func_return_value return_value;
1866 acpi_status status;
1867 struct func_input_params params = {
1868 .function_num = 0x1,
1869 .commun_devices = 0xFFFF,
1870 .devices = 0xFFFF,
1871 .app_status = 0x10, /* RF Button Active */
1872 .app_mask = 0x10,
1873 };
1874
1875 status = wmid3_set_function_mode(¶ms, &return_value);
1876
1877 if (return_value.error_code || return_value.ec_return_value)
1878 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1879 return_value.error_code,
1880 return_value.ec_return_value);
1881
1882 return status;
1883 }
1884
acer_wmi_accel_setup(void)1885 static int __init acer_wmi_accel_setup(void)
1886 {
1887 struct acpi_device *adev;
1888 int err;
1889
1890 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
1891 if (!adev)
1892 return -ENODEV;
1893
1894 gsensor_handle = acpi_device_handle(adev);
1895 acpi_dev_put(adev);
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
acer_wmi_accel_destroy(void)1924 static void acer_wmi_accel_destroy(void)
1925 {
1926 input_unregister_device(acer_wmi_accel_dev);
1927 }
1928
acer_wmi_input_setup(void)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_dev;
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_dev:
1962 input_free_device(acer_wmi_input_dev);
1963 return err;
1964 }
1965
acer_wmi_input_destroy(void)1966 static void acer_wmi_input_destroy(void)
1967 {
1968 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1969 input_unregister_device(acer_wmi_input_dev);
1970 }
1971
1972 /*
1973 * debugfs functions
1974 */
get_wmid_devices(void)1975 static u32 get_wmid_devices(void)
1976 {
1977 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1978 union acpi_object *obj;
1979 acpi_status status;
1980 u32 devices = 0;
1981
1982 status = wmi_query_block(WMID_GUID2, 0, &out);
1983 if (ACPI_FAILURE(status))
1984 return 0;
1985
1986 obj = (union acpi_object *) out.pointer;
1987 if (obj) {
1988 if (obj->type == ACPI_TYPE_BUFFER &&
1989 (obj->buffer.length == sizeof(u32) ||
1990 obj->buffer.length == sizeof(u64))) {
1991 devices = *((u32 *) obj->buffer.pointer);
1992 } else if (obj->type == ACPI_TYPE_INTEGER) {
1993 devices = (u32) obj->integer.value;
1994 }
1995 }
1996
1997 kfree(out.pointer);
1998 return devices;
1999 }
2000
2001 /*
2002 * Platform device
2003 */
acer_platform_probe(struct platform_device * device)2004 static int acer_platform_probe(struct platform_device *device)
2005 {
2006 int err;
2007
2008 if (has_cap(ACER_CAP_MAILLED)) {
2009 err = acer_led_init(&device->dev);
2010 if (err)
2011 goto error_mailled;
2012 }
2013
2014 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2015 err = acer_backlight_init(&device->dev);
2016 if (err)
2017 goto error_brightness;
2018 }
2019
2020 err = acer_rfkill_init(&device->dev);
2021 if (err)
2022 goto error_rfkill;
2023
2024 return err;
2025
2026 error_rfkill:
2027 if (has_cap(ACER_CAP_BRIGHTNESS))
2028 acer_backlight_exit();
2029 error_brightness:
2030 if (has_cap(ACER_CAP_MAILLED))
2031 acer_led_exit();
2032 error_mailled:
2033 return err;
2034 }
2035
acer_platform_remove(struct platform_device * device)2036 static int acer_platform_remove(struct platform_device *device)
2037 {
2038 if (has_cap(ACER_CAP_MAILLED))
2039 acer_led_exit();
2040 if (has_cap(ACER_CAP_BRIGHTNESS))
2041 acer_backlight_exit();
2042
2043 acer_rfkill_exit();
2044 return 0;
2045 }
2046
2047 #ifdef CONFIG_PM_SLEEP
acer_suspend(struct device * dev)2048 static int acer_suspend(struct device *dev)
2049 {
2050 u32 value;
2051 struct acer_data *data = &interface->data;
2052
2053 if (!data)
2054 return -ENOMEM;
2055
2056 if (has_cap(ACER_CAP_MAILLED)) {
2057 get_u32(&value, ACER_CAP_MAILLED);
2058 set_u32(LED_OFF, ACER_CAP_MAILLED);
2059 data->mailled = value;
2060 }
2061
2062 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2063 get_u32(&value, ACER_CAP_BRIGHTNESS);
2064 data->brightness = value;
2065 }
2066
2067 return 0;
2068 }
2069
acer_resume(struct device * dev)2070 static int acer_resume(struct device *dev)
2071 {
2072 struct acer_data *data = &interface->data;
2073
2074 if (!data)
2075 return -ENOMEM;
2076
2077 if (has_cap(ACER_CAP_MAILLED))
2078 set_u32(data->mailled, ACER_CAP_MAILLED);
2079
2080 if (has_cap(ACER_CAP_BRIGHTNESS))
2081 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2082
2083 if (has_cap(ACER_CAP_ACCEL))
2084 acer_gsensor_init();
2085
2086 return 0;
2087 }
2088 #else
2089 #define acer_suspend NULL
2090 #define acer_resume NULL
2091 #endif
2092
2093 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2094
acer_platform_shutdown(struct platform_device * device)2095 static void acer_platform_shutdown(struct platform_device *device)
2096 {
2097 struct acer_data *data = &interface->data;
2098
2099 if (!data)
2100 return;
2101
2102 if (has_cap(ACER_CAP_MAILLED))
2103 set_u32(LED_OFF, ACER_CAP_MAILLED);
2104 }
2105
2106 static struct platform_driver acer_platform_driver = {
2107 .driver = {
2108 .name = "acer-wmi",
2109 .pm = &acer_pm,
2110 },
2111 .probe = acer_platform_probe,
2112 .remove = acer_platform_remove,
2113 .shutdown = acer_platform_shutdown,
2114 };
2115
2116 static struct platform_device *acer_platform_device;
2117
remove_debugfs(void)2118 static void remove_debugfs(void)
2119 {
2120 debugfs_remove_recursive(interface->debug.root);
2121 }
2122
create_debugfs(void)2123 static void __init create_debugfs(void)
2124 {
2125 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2126
2127 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2128 &interface->debug.wmid_devices);
2129 }
2130
acer_wmi_init(void)2131 static int __init acer_wmi_init(void)
2132 {
2133 int err;
2134
2135 pr_info("Acer Laptop ACPI-WMI Extras\n");
2136
2137 if (dmi_check_system(acer_blacklist)) {
2138 pr_info("Blacklisted hardware detected - not loading\n");
2139 return -ENODEV;
2140 }
2141
2142 find_quirks();
2143
2144 /*
2145 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2146 * machines like Lenovo, Fujitsu and Medion. In the past days,
2147 * acer-wmi driver handled those non-Acer machines by quirks list.
2148 * But actually acer-wmi driver was loaded on any machines that have
2149 * AMW0_GUID1. This behavior is strange because those machines should
2150 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2151 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2152 * should be in Acer/Gateway/Packard Bell white list, or it's already
2153 * in the past quirk list.
2154 */
2155 if (wmi_has_guid(AMW0_GUID1) &&
2156 !dmi_check_system(amw0_whitelist) &&
2157 quirks == &quirk_unknown) {
2158 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2159 return -ENODEV;
2160 }
2161
2162 /*
2163 * Detect which ACPI-WMI interface we're using.
2164 */
2165 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2166 interface = &AMW0_V2_interface;
2167
2168 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2169 interface = &wmid_interface;
2170
2171 if (wmi_has_guid(WMID_GUID3))
2172 interface = &wmid_v2_interface;
2173
2174 if (interface)
2175 dmi_walk(type_aa_dmi_decode, NULL);
2176
2177 if (wmi_has_guid(WMID_GUID2) && interface) {
2178 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2179 pr_err("Unable to detect available WMID devices\n");
2180 return -ENODEV;
2181 }
2182 /* WMID always provides brightness methods */
2183 interface->capability |= ACER_CAP_BRIGHTNESS;
2184 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2185 pr_err("No WMID device detection method found\n");
2186 return -ENODEV;
2187 }
2188
2189 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2190 interface = &AMW0_interface;
2191
2192 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2193 pr_err("Unable to detect available AMW0 devices\n");
2194 return -ENODEV;
2195 }
2196 }
2197
2198 if (wmi_has_guid(AMW0_GUID1))
2199 AMW0_find_mailled();
2200
2201 if (!interface) {
2202 pr_err("No or unsupported WMI interface, unable to load\n");
2203 return -ENODEV;
2204 }
2205
2206 set_quirks();
2207
2208 if (dmi_check_system(video_vendor_dmi_table))
2209 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2210
2211 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2212 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2213
2214 if (wmi_has_guid(WMID_GUID3)) {
2215 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2216 pr_warn("Cannot enable RF Button Driver\n");
2217
2218 if (ec_raw_mode) {
2219 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2220 pr_err("Cannot enable EC raw mode\n");
2221 return -ENODEV;
2222 }
2223 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2224 pr_err("Cannot enable Launch Manager mode\n");
2225 return -ENODEV;
2226 }
2227 } else if (ec_raw_mode) {
2228 pr_info("No WMID EC raw mode enable method\n");
2229 }
2230
2231 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2232 err = acer_wmi_input_setup();
2233 if (err)
2234 return err;
2235 err = acer_wmi_accel_setup();
2236 if (err && err != -ENODEV)
2237 pr_warn("Cannot enable accelerometer\n");
2238 }
2239
2240 err = platform_driver_register(&acer_platform_driver);
2241 if (err) {
2242 pr_err("Unable to register platform driver\n");
2243 goto error_platform_register;
2244 }
2245
2246 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2247 if (!acer_platform_device) {
2248 err = -ENOMEM;
2249 goto error_device_alloc;
2250 }
2251
2252 err = platform_device_add(acer_platform_device);
2253 if (err)
2254 goto error_device_add;
2255
2256 if (wmi_has_guid(WMID_GUID2)) {
2257 interface->debug.wmid_devices = get_wmid_devices();
2258 create_debugfs();
2259 }
2260
2261 /* Override any initial settings with values from the commandline */
2262 acer_commandline_init();
2263
2264 return 0;
2265
2266 error_device_add:
2267 platform_device_put(acer_platform_device);
2268 error_device_alloc:
2269 platform_driver_unregister(&acer_platform_driver);
2270 error_platform_register:
2271 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2272 acer_wmi_input_destroy();
2273 if (has_cap(ACER_CAP_ACCEL))
2274 acer_wmi_accel_destroy();
2275
2276 return err;
2277 }
2278
acer_wmi_exit(void)2279 static void __exit acer_wmi_exit(void)
2280 {
2281 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2282 acer_wmi_input_destroy();
2283
2284 if (has_cap(ACER_CAP_ACCEL))
2285 acer_wmi_accel_destroy();
2286
2287 remove_debugfs();
2288 platform_device_unregister(acer_platform_device);
2289 platform_driver_unregister(&acer_platform_driver);
2290
2291 pr_info("Acer Laptop WMI Extras unloaded\n");
2292 return;
2293 }
2294
2295 module_init(acer_wmi_init);
2296 module_exit(acer_wmi_exit);
2297
