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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
46MODULE_AUTHOR("Carlos Corbacho");
47MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
48MODULE_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
90MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
91MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
92MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
93
94enum acer_wmi_event_ids {
95 WMID_HOTKEY_EVENT = 0x1,
96 WMID_ACCEL_EVENT = 0x5,
97};
98
99static const struct key_entry acer_wmi_keymap[] __initconst = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
131 {KE_END, 0}
132};
133
134static struct input_dev *acer_wmi_input_dev;
135static struct input_dev *acer_wmi_accel_dev;
136
137struct event_return_value {
138 u8 function;
139 u8 key_num;
140 u16 device_state;
141 u32 reserved;
142} __attribute__((packed));
143
144/*
145 * GUID3 Get Device Status device flags
146 */
147#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151#define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
152
153struct lm_input_params {
154 u8 function_num; /* Function Number */
155 u16 commun_devices; /* Communication type devices default status */
156 u16 devices; /* Other type devices default status */
157 u8 lm_status; /* Launch Manager Status */
158 u16 reserved;
159} __attribute__((packed));
160
161struct lm_return_value {
162 u8 error_code; /* Error Code */
163 u8 ec_return_value; /* EC Return Value */
164 u16 reserved;
165} __attribute__((packed));
166
167struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
168 u8 function_num; /* Function Number */
169 u8 hotkey_number; /* Hotkey Number */
170 u16 devices; /* Set Device */
171 u8 volume_value; /* Volume Value */
172} __attribute__((packed));
173
174struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Get Device */
178} __attribute__((packed));
179
180struct wmid3_gds_return_value { /* Get Device Status return value*/
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 devices; /* Current Device Status */
184 u32 reserved;
185} __attribute__((packed));
186
187struct hotkey_function_type_aa {
188 u8 type;
189 u8 length;
190 u16 handle;
191 u16 commun_func_bitmap;
192 u16 application_func_bitmap;
193 u16 media_func_bitmap;
194 u16 display_func_bitmap;
195 u16 others_func_bitmap;
196 u8 commun_fn_key_number;
197} __attribute__((packed));
198
199/*
200 * Interface capability flags
201 */
202#define ACER_CAP_MAILLED (1<<0)
203#define ACER_CAP_WIRELESS (1<<1)
204#define ACER_CAP_BLUETOOTH (1<<2)
205#define ACER_CAP_BRIGHTNESS (1<<3)
206#define ACER_CAP_THREEG (1<<4)
207#define ACER_CAP_ACCEL (1<<5)
208#define ACER_CAP_ANY (0xFFFFFFFF)
209
210/*
211 * Interface type flags
212 */
213enum interface_flags {
214 ACER_AMW0,
215 ACER_AMW0_V2,
216 ACER_WMID,
217 ACER_WMID_v2,
218};
219
220#define ACER_DEFAULT_WIRELESS 0
221#define ACER_DEFAULT_BLUETOOTH 0
222#define ACER_DEFAULT_MAILLED 0
223#define ACER_DEFAULT_THREEG 0
224
225static int max_brightness = 0xF;
226
227static int mailled = -1;
228static int brightness = -1;
229static int threeg = -1;
230static int force_series;
231static bool ec_raw_mode;
232static bool has_type_aa;
233static u16 commun_func_bitmap;
234static u8 commun_fn_key_number;
235
236module_param(mailled, int, 0444);
237module_param(brightness, int, 0444);
238module_param(threeg, int, 0444);
239module_param(force_series, int, 0444);
240module_param(ec_raw_mode, bool, 0444);
241MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
242MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
243MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
244MODULE_PARM_DESC(force_series, "Force a different laptop series");
245MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
246
247struct acer_data {
248 int mailled;
249 int threeg;
250 int brightness;
251};
252
253struct acer_debug {
254 struct dentry *root;
255 struct dentry *devices;
256 u32 wmid_devices;
257};
258
259static struct rfkill *wireless_rfkill;
260static struct rfkill *bluetooth_rfkill;
261static struct rfkill *threeg_rfkill;
262static bool rfkill_inited;
263
264/* Each low-level interface must define at least some of the following */
265struct wmi_interface {
266 /* The WMI device type */
267 u32 type;
268
269 /* The capabilities this interface provides */
270 u32 capability;
271
272 /* Private data for the current interface */
273 struct acer_data data;
274
275 /* debugfs entries associated with this interface */
276 struct acer_debug debug;
277};
278
279/* The static interface pointer, points to the currently detected interface */
280static struct wmi_interface *interface;
281
282/*
283 * Embedded Controller quirks
284 * Some laptops require us to directly access the EC to either enable or query
285 * features that are not available through WMI.
286 */
287
288struct quirk_entry {
289 u8 wireless;
290 u8 mailled;
291 s8 brightness;
292 u8 bluetooth;
293};
294
295static struct quirk_entry *quirks;
296
297static void __init set_quirks(void)
298{
299 if (!interface)
300 return;
301
302 if (quirks->mailled)
303 interface->capability |= ACER_CAP_MAILLED;
304
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
307}
308
309static int __init dmi_matched(const struct dmi_system_id *dmi)
310{
311 quirks = dmi->driver_data;
312 return 1;
313}
314
315static struct quirk_entry quirk_unknown = {
316};
317
318static struct quirk_entry quirk_acer_aspire_1520 = {
319 .brightness = -1,
320};
321
322static struct quirk_entry quirk_acer_travelmate_2490 = {
323 .mailled = 1,
324};
325
326/* This AMW0 laptop has no bluetooth */
327static struct quirk_entry quirk_medion_md_98300 = {
328 .wireless = 1,
329};
330
331static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
332 .wireless = 2,
333};
334
335static struct quirk_entry quirk_lenovo_ideapad_s205 = {
336 .wireless = 3,
337};
338
339/* The Aspire One has a dummy ACPI-WMI interface - disable it */
340static const struct dmi_system_id acer_blacklist[] __initconst = {
341 {
342 .ident = "Acer Aspire One (SSD)",
343 .matches = {
344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
346 },
347 },
348 {
349 .ident = "Acer Aspire One (HDD)",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
353 },
354 },
355 {}
356};
357
358static const struct dmi_system_id acer_quirks[] __initconst = {
359 {
360 .callback = dmi_matched,
361 .ident = "Acer Aspire 1360",
362 .matches = {
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
365 },
366 .driver_data = &quirk_acer_aspire_1520,
367 },
368 {
369 .callback = dmi_matched,
370 .ident = "Acer Aspire 1520",
371 .matches = {
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
374 },
375 .driver_data = &quirk_acer_aspire_1520,
376 },
377 {
378 .callback = dmi_matched,
379 .ident = "Acer Aspire 3100",
380 .matches = {
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
383 },
384 .driver_data = &quirk_acer_travelmate_2490,
385 },
386 {
387 .callback = dmi_matched,
388 .ident = "Acer Aspire 3610",
389 .matches = {
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
392 },
393 .driver_data = &quirk_acer_travelmate_2490,
394 },
395 {
396 .callback = dmi_matched,
397 .ident = "Acer Aspire 5100",
398 .matches = {
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
401 },
402 .driver_data = &quirk_acer_travelmate_2490,
403 },
404 {
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 5610",
407 .matches = {
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
410 },
411 .driver_data = &quirk_acer_travelmate_2490,
412 },
413 {
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 5630",
416 .matches = {
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
419 },
420 .driver_data = &quirk_acer_travelmate_2490,
421 },
422 {
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 5650",
425 .matches = {
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
428 },
429 .driver_data = &quirk_acer_travelmate_2490,
430 },
431 {
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 5680",
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
437 },
438 .driver_data = &quirk_acer_travelmate_2490,
439 },
440 {
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 9110",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
446 },
447 .driver_data = &quirk_acer_travelmate_2490,
448 },
449 {
450 .callback = dmi_matched,
451 .ident = "Acer TravelMate 2490",
452 .matches = {
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
455 },
456 .driver_data = &quirk_acer_travelmate_2490,
457 },
458 {
459 .callback = dmi_matched,
460 .ident = "Acer TravelMate 4200",
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
464 },
465 .driver_data = &quirk_acer_travelmate_2490,
466 },
467 {
468 .callback = dmi_matched,
469 .ident = "Fujitsu Siemens Amilo Li 1718",
470 .matches = {
471 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
473 },
474 .driver_data = &quirk_fujitsu_amilo_li_1718,
475 },
476 {
477 .callback = dmi_matched,
478 .ident = "Medion MD 98300",
479 .matches = {
480 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
482 },
483 .driver_data = &quirk_medion_md_98300,
484 },
485 {
486 .callback = dmi_matched,
487 .ident = "Lenovo Ideapad S205",
488 .matches = {
489 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
491 },
492 .driver_data = &quirk_lenovo_ideapad_s205,
493 },
494 {
495 .callback = dmi_matched,
496 .ident = "Lenovo Ideapad S205 (Brazos)",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
500 },
501 .driver_data = &quirk_lenovo_ideapad_s205,
502 },
503 {
504 .callback = dmi_matched,
505 .ident = "Lenovo 3000 N200",
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
509 },
510 .driver_data = &quirk_fujitsu_amilo_li_1718,
511 },
512 {
513 .callback = dmi_matched,
514 .ident = "Lenovo Ideapad S205-10382JG",
515 .matches = {
516 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
518 },
519 .driver_data = &quirk_lenovo_ideapad_s205,
520 },
521 {
522 .callback = dmi_matched,
523 .ident = "Lenovo Ideapad S205-1038DPG",
524 .matches = {
525 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
526 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
527 },
528 .driver_data = &quirk_lenovo_ideapad_s205,
529 },
530 {}
531};
532
533static int __init
534video_set_backlight_video_vendor(const struct dmi_system_id *d)
535{
536 interface->capability &= ~ACER_CAP_BRIGHTNESS;
537 pr_info("Brightness must be controlled by generic video driver\n");
538 return 0;
539}
540
541static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
542 {
543 .callback = video_set_backlight_video_vendor,
544 .ident = "Acer TravelMate 4750",
545 .matches = {
546 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
548 },
549 },
550 {
551 .callback = video_set_backlight_video_vendor,
552 .ident = "Acer Extensa 5235",
553 .matches = {
554 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
556 },
557 },
558 {
559 .callback = video_set_backlight_video_vendor,
560 .ident = "Acer TravelMate 5760",
561 .matches = {
562 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
564 },
565 },
566 {
567 .callback = video_set_backlight_video_vendor,
568 .ident = "Acer Aspire 5750",
569 .matches = {
570 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
571 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
572 },
573 },
574 {
575 .callback = video_set_backlight_video_vendor,
576 .ident = "Acer Aspire 5741",
577 .matches = {
578 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
580 },
581 },
582 {
583 /*
584 * Note no video_set_backlight_video_vendor, we must use the
585 * acer interface, as there is no native backlight interface.
586 */
587 .ident = "Acer KAV80",
588 .matches = {
589 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
590 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
591 },
592 },
593 {}
594};
595
596/* Find which quirks are needed for a particular vendor/ model pair */
597static void __init find_quirks(void)
598{
599 if (!force_series) {
600 dmi_check_system(acer_quirks);
601 } else if (force_series == 2490) {
602 quirks = &quirk_acer_travelmate_2490;
603 }
604
605 if (quirks == NULL)
606 quirks = &quirk_unknown;
607
608 set_quirks();
609}
610
611/*
612 * General interface convenience methods
613 */
614
615static bool has_cap(u32 cap)
616{
617 if ((interface->capability & cap) != 0)
618 return 1;
619
620 return 0;
621}
622
623/*
624 * AMW0 (V1) interface
625 */
626struct wmab_args {
627 u32 eax;
628 u32 ebx;
629 u32 ecx;
630 u32 edx;
631};
632
633struct wmab_ret {
634 u32 eax;
635 u32 ebx;
636 u32 ecx;
637 u32 edx;
638 u32 eex;
639};
640
641static acpi_status wmab_execute(struct wmab_args *regbuf,
642struct acpi_buffer *result)
643{
644 struct acpi_buffer input;
645 acpi_status status;
646 input.length = sizeof(struct wmab_args);
647 input.pointer = (u8 *)regbuf;
648
649 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
650
651 return status;
652}
653
654static acpi_status AMW0_get_u32(u32 *value, u32 cap)
655{
656 int err;
657 u8 result;
658
659 switch (cap) {
660 case ACER_CAP_MAILLED:
661 switch (quirks->mailled) {
662 default:
663 err = ec_read(0xA, &result);
664 if (err)
665 return AE_ERROR;
666 *value = (result >> 7) & 0x1;
667 return AE_OK;
668 }
669 break;
670 case ACER_CAP_WIRELESS:
671 switch (quirks->wireless) {
672 case 1:
673 err = ec_read(0x7B, &result);
674 if (err)
675 return AE_ERROR;
676 *value = result & 0x1;
677 return AE_OK;
678 case 2:
679 err = ec_read(0x71, &result);
680 if (err)
681 return AE_ERROR;
682 *value = result & 0x1;
683 return AE_OK;
684 case 3:
685 err = ec_read(0x78, &result);
686 if (err)
687 return AE_ERROR;
688 *value = result & 0x1;
689 return AE_OK;
690 default:
691 err = ec_read(0xA, &result);
692 if (err)
693 return AE_ERROR;
694 *value = (result >> 2) & 0x1;
695 return AE_OK;
696 }
697 break;
698 case ACER_CAP_BLUETOOTH:
699 switch (quirks->bluetooth) {
700 default:
701 err = ec_read(0xA, &result);
702 if (err)
703 return AE_ERROR;
704 *value = (result >> 4) & 0x1;
705 return AE_OK;
706 }
707 break;
708 case ACER_CAP_BRIGHTNESS:
709 switch (quirks->brightness) {
710 default:
711 err = ec_read(0x83, &result);
712 if (err)
713 return AE_ERROR;
714 *value = result;
715 return AE_OK;
716 }
717 break;
718 default:
719 return AE_ERROR;
720 }
721 return AE_OK;
722}
723
724static acpi_status AMW0_set_u32(u32 value, u32 cap)
725{
726 struct wmab_args args;
727
728 args.eax = ACER_AMW0_WRITE;
729 args.ebx = value ? (1<<8) : 0;
730 args.ecx = args.edx = 0;
731
732 switch (cap) {
733 case ACER_CAP_MAILLED:
734 if (value > 1)
735 return AE_BAD_PARAMETER;
736 args.ebx |= ACER_AMW0_MAILLED_MASK;
737 break;
738 case ACER_CAP_WIRELESS:
739 if (value > 1)
740 return AE_BAD_PARAMETER;
741 args.ebx |= ACER_AMW0_WIRELESS_MASK;
742 break;
743 case ACER_CAP_BLUETOOTH:
744 if (value > 1)
745 return AE_BAD_PARAMETER;
746 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
747 break;
748 case ACER_CAP_BRIGHTNESS:
749 if (value > max_brightness)
750 return AE_BAD_PARAMETER;
751 switch (quirks->brightness) {
752 default:
753 return ec_write(0x83, value);
754 break;
755 }
756 default:
757 return AE_ERROR;
758 }
759
760 /* Actually do the set */
761 return wmab_execute(&args, NULL);
762}
763
764static acpi_status __init AMW0_find_mailled(void)
765{
766 struct wmab_args args;
767 struct wmab_ret ret;
768 acpi_status status = AE_OK;
769 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
770 union acpi_object *obj;
771
772 args.eax = 0x86;
773 args.ebx = args.ecx = args.edx = 0;
774
775 status = wmab_execute(&args, &out);
776 if (ACPI_FAILURE(status))
777 return status;
778
779 obj = (union acpi_object *) out.pointer;
780 if (obj && obj->type == ACPI_TYPE_BUFFER &&
781 obj->buffer.length == sizeof(struct wmab_ret)) {
782 ret = *((struct wmab_ret *) obj->buffer.pointer);
783 } else {
784 kfree(out.pointer);
785 return AE_ERROR;
786 }
787
788 if (ret.eex & 0x1)
789 interface->capability |= ACER_CAP_MAILLED;
790
791 kfree(out.pointer);
792
793 return AE_OK;
794}
795
796static int AMW0_set_cap_acpi_check_device_found __initdata;
797
798static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
799 u32 level, void *context, void **retval)
800{
801 AMW0_set_cap_acpi_check_device_found = 1;
802 return AE_OK;
803}
804
805static const struct acpi_device_id norfkill_ids[] __initconst = {
806 { "VPC2004", 0},
807 { "IBM0068", 0},
808 { "LEN0068", 0},
809 { "SNY5001", 0}, /* sony-laptop in charge */
810 { "HPQ6601", 0},
811 { "", 0},
812};
813
814static int __init AMW0_set_cap_acpi_check_device(void)
815{
816 const struct acpi_device_id *id;
817
818 for (id = norfkill_ids; id->id[0]; id++)
819 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
820 NULL, NULL);
821 return AMW0_set_cap_acpi_check_device_found;
822}
823
824static acpi_status __init AMW0_set_capabilities(void)
825{
826 struct wmab_args args;
827 struct wmab_ret ret;
828 acpi_status status;
829 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
830 union acpi_object *obj;
831
832 /*
833 * On laptops with this strange GUID (non Acer), normal probing doesn't
834 * work.
835 */
836 if (wmi_has_guid(AMW0_GUID2)) {
837 if ((quirks != &quirk_unknown) ||
838 !AMW0_set_cap_acpi_check_device())
839 interface->capability |= ACER_CAP_WIRELESS;
840 return AE_OK;
841 }
842
843 args.eax = ACER_AMW0_WRITE;
844 args.ecx = args.edx = 0;
845
846 args.ebx = 0xa2 << 8;
847 args.ebx |= ACER_AMW0_WIRELESS_MASK;
848
849 status = wmab_execute(&args, &out);
850 if (ACPI_FAILURE(status))
851 return status;
852
853 obj = out.pointer;
854 if (obj && obj->type == ACPI_TYPE_BUFFER &&
855 obj->buffer.length == sizeof(struct wmab_ret)) {
856 ret = *((struct wmab_ret *) obj->buffer.pointer);
857 } else {
858 status = AE_ERROR;
859 goto out;
860 }
861
862 if (ret.eax & 0x1)
863 interface->capability |= ACER_CAP_WIRELESS;
864
865 args.ebx = 2 << 8;
866 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
867
868 /*
869 * It's ok to use existing buffer for next wmab_execute call.
870 * But we need to kfree(out.pointer) if next wmab_execute fail.
871 */
872 status = wmab_execute(&args, &out);
873 if (ACPI_FAILURE(status))
874 goto out;
875
876 obj = (union acpi_object *) out.pointer;
877 if (obj && obj->type == ACPI_TYPE_BUFFER
878 && obj->buffer.length == sizeof(struct wmab_ret)) {
879 ret = *((struct wmab_ret *) obj->buffer.pointer);
880 } else {
881 status = AE_ERROR;
882 goto out;
883 }
884
885 if (ret.eax & 0x1)
886 interface->capability |= ACER_CAP_BLUETOOTH;
887
888 /*
889 * This appears to be safe to enable, since all Wistron based laptops
890 * appear to use the same EC register for brightness, even if they
891 * differ for wireless, etc
892 */
893 if (quirks->brightness >= 0)
894 interface->capability |= ACER_CAP_BRIGHTNESS;
895
896 status = AE_OK;
897out:
898 kfree(out.pointer);
899 return status;
900}
901
902static struct wmi_interface AMW0_interface = {
903 .type = ACER_AMW0,
904};
905
906static struct wmi_interface AMW0_V2_interface = {
907 .type = ACER_AMW0_V2,
908};
909
910/*
911 * New interface (The WMID interface)
912 */
913static acpi_status
914WMI_execute_u32(u32 method_id, u32 in, u32 *out)
915{
916 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
917 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
918 union acpi_object *obj;
919 u32 tmp = 0;
920 acpi_status status;
921
922 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
923
924 if (ACPI_FAILURE(status))
925 return status;
926
927 obj = (union acpi_object *) result.pointer;
928 if (obj) {
929 if (obj->type == ACPI_TYPE_BUFFER &&
930 (obj->buffer.length == sizeof(u32) ||
931 obj->buffer.length == sizeof(u64))) {
932 tmp = *((u32 *) obj->buffer.pointer);
933 } else if (obj->type == ACPI_TYPE_INTEGER) {
934 tmp = (u32) obj->integer.value;
935 }
936 }
937
938 if (out)
939 *out = tmp;
940
941 kfree(result.pointer);
942
943 return status;
944}
945
946static acpi_status WMID_get_u32(u32 *value, u32 cap)
947{
948 acpi_status status;
949 u8 tmp;
950 u32 result, method_id = 0;
951
952 switch (cap) {
953 case ACER_CAP_WIRELESS:
954 method_id = ACER_WMID_GET_WIRELESS_METHODID;
955 break;
956 case ACER_CAP_BLUETOOTH:
957 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
958 break;
959 case ACER_CAP_BRIGHTNESS:
960 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
961 break;
962 case ACER_CAP_THREEG:
963 method_id = ACER_WMID_GET_THREEG_METHODID;
964 break;
965 case ACER_CAP_MAILLED:
966 if (quirks->mailled == 1) {
967 ec_read(0x9f, &tmp);
968 *value = tmp & 0x1;
969 return 0;
970 }
971 default:
972 return AE_ERROR;
973 }
974 status = WMI_execute_u32(method_id, 0, &result);
975
976 if (ACPI_SUCCESS(status))
977 *value = (u8)result;
978
979 return status;
980}
981
982static acpi_status WMID_set_u32(u32 value, u32 cap)
983{
984 u32 method_id = 0;
985 char param;
986
987 switch (cap) {
988 case ACER_CAP_BRIGHTNESS:
989 if (value > max_brightness)
990 return AE_BAD_PARAMETER;
991 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
992 break;
993 case ACER_CAP_WIRELESS:
994 if (value > 1)
995 return AE_BAD_PARAMETER;
996 method_id = ACER_WMID_SET_WIRELESS_METHODID;
997 break;
998 case ACER_CAP_BLUETOOTH:
999 if (value > 1)
1000 return AE_BAD_PARAMETER;
1001 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1002 break;
1003 case ACER_CAP_THREEG:
1004 if (value > 1)
1005 return AE_BAD_PARAMETER;
1006 method_id = ACER_WMID_SET_THREEG_METHODID;
1007 break;
1008 case ACER_CAP_MAILLED:
1009 if (value > 1)
1010 return AE_BAD_PARAMETER;
1011 if (quirks->mailled == 1) {
1012 param = value ? 0x92 : 0x93;
1013 i8042_lock_chip();
1014 i8042_command(¶m, 0x1059);
1015 i8042_unlock_chip();
1016 return 0;
1017 }
1018 break;
1019 default:
1020 return AE_ERROR;
1021 }
1022 return WMI_execute_u32(method_id, (u32)value, NULL);
1023}
1024
1025static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1026{
1027 struct wmid3_gds_return_value return_value;
1028 acpi_status status;
1029 union acpi_object *obj;
1030 struct wmid3_gds_get_input_param params = {
1031 .function_num = 0x1,
1032 .hotkey_number = commun_fn_key_number,
1033 .devices = device,
1034 };
1035 struct acpi_buffer input = {
1036 sizeof(struct wmid3_gds_get_input_param),
1037 ¶ms
1038 };
1039 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1040
1041 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1042 if (ACPI_FAILURE(status))
1043 return status;
1044
1045 obj = output.pointer;
1046
1047 if (!obj)
1048 return AE_ERROR;
1049 else if (obj->type != ACPI_TYPE_BUFFER) {
1050 kfree(obj);
1051 return AE_ERROR;
1052 }
1053 if (obj->buffer.length != 8) {
1054 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1055 kfree(obj);
1056 return AE_ERROR;
1057 }
1058
1059 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1060 kfree(obj);
1061
1062 if (return_value.error_code || return_value.ec_return_value)
1063 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1064 device,
1065 return_value.error_code,
1066 return_value.ec_return_value);
1067 else
1068 *value = !!(return_value.devices & device);
1069
1070 return status;
1071}
1072
1073static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1074{
1075 u16 device;
1076
1077 switch (cap) {
1078 case ACER_CAP_WIRELESS:
1079 device = ACER_WMID3_GDS_WIRELESS;
1080 break;
1081 case ACER_CAP_BLUETOOTH:
1082 device = ACER_WMID3_GDS_BLUETOOTH;
1083 break;
1084 case ACER_CAP_THREEG:
1085 device = ACER_WMID3_GDS_THREEG;
1086 break;
1087 default:
1088 return AE_ERROR;
1089 }
1090 return wmid3_get_device_status(value, device);
1091}
1092
1093static acpi_status wmid3_set_device_status(u32 value, u16 device)
1094{
1095 struct wmid3_gds_return_value return_value;
1096 acpi_status status;
1097 union acpi_object *obj;
1098 u16 devices;
1099 struct wmid3_gds_get_input_param get_params = {
1100 .function_num = 0x1,
1101 .hotkey_number = commun_fn_key_number,
1102 .devices = commun_func_bitmap,
1103 };
1104 struct acpi_buffer get_input = {
1105 sizeof(struct wmid3_gds_get_input_param),
1106 &get_params
1107 };
1108 struct wmid3_gds_set_input_param set_params = {
1109 .function_num = 0x2,
1110 .hotkey_number = commun_fn_key_number,
1111 .devices = commun_func_bitmap,
1112 };
1113 struct acpi_buffer set_input = {
1114 sizeof(struct wmid3_gds_set_input_param),
1115 &set_params
1116 };
1117 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1118 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1119
1120 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1121 if (ACPI_FAILURE(status))
1122 return status;
1123
1124 obj = output.pointer;
1125
1126 if (!obj)
1127 return AE_ERROR;
1128 else if (obj->type != ACPI_TYPE_BUFFER) {
1129 kfree(obj);
1130 return AE_ERROR;
1131 }
1132 if (obj->buffer.length != 8) {
1133 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1134 kfree(obj);
1135 return AE_ERROR;
1136 }
1137
1138 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1139 kfree(obj);
1140
1141 if (return_value.error_code || return_value.ec_return_value) {
1142 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1143 return_value.error_code,
1144 return_value.ec_return_value);
1145 return status;
1146 }
1147
1148 devices = return_value.devices;
1149 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1150
1151 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1152 if (ACPI_FAILURE(status))
1153 return status;
1154
1155 obj = output2.pointer;
1156
1157 if (!obj)
1158 return AE_ERROR;
1159 else if (obj->type != ACPI_TYPE_BUFFER) {
1160 kfree(obj);
1161 return AE_ERROR;
1162 }
1163 if (obj->buffer.length != 4) {
1164 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1165 kfree(obj);
1166 return AE_ERROR;
1167 }
1168
1169 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1170 kfree(obj);
1171
1172 if (return_value.error_code || return_value.ec_return_value)
1173 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1174 return_value.error_code,
1175 return_value.ec_return_value);
1176
1177 return status;
1178}
1179
1180static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1181{
1182 u16 device;
1183
1184 switch (cap) {
1185 case ACER_CAP_WIRELESS:
1186 device = ACER_WMID3_GDS_WIRELESS;
1187 break;
1188 case ACER_CAP_BLUETOOTH:
1189 device = ACER_WMID3_GDS_BLUETOOTH;
1190 break;
1191 case ACER_CAP_THREEG:
1192 device = ACER_WMID3_GDS_THREEG;
1193 break;
1194 default:
1195 return AE_ERROR;
1196 }
1197 return wmid3_set_device_status(value, device);
1198}
1199
1200static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1201{
1202 struct hotkey_function_type_aa *type_aa;
1203
1204 /* We are looking for OEM-specific Type AAh */
1205 if (header->type != 0xAA)
1206 return;
1207
1208 has_type_aa = true;
1209 type_aa = (struct hotkey_function_type_aa *) header;
1210
1211 pr_info("Function bitmap for Communication Button: 0x%x\n",
1212 type_aa->commun_func_bitmap);
1213 commun_func_bitmap = type_aa->commun_func_bitmap;
1214
1215 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1216 interface->capability |= ACER_CAP_WIRELESS;
1217 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1218 interface->capability |= ACER_CAP_THREEG;
1219 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1220 interface->capability |= ACER_CAP_BLUETOOTH;
1221
1222 commun_fn_key_number = type_aa->commun_fn_key_number;
1223}
1224
1225static acpi_status __init WMID_set_capabilities(void)
1226{
1227 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1228 union acpi_object *obj;
1229 acpi_status status;
1230 u32 devices;
1231
1232 status = wmi_query_block(WMID_GUID2, 1, &out);
1233 if (ACPI_FAILURE(status))
1234 return status;
1235
1236 obj = (union acpi_object *) out.pointer;
1237 if (obj) {
1238 if (obj->type == ACPI_TYPE_BUFFER &&
1239 (obj->buffer.length == sizeof(u32) ||
1240 obj->buffer.length == sizeof(u64))) {
1241 devices = *((u32 *) obj->buffer.pointer);
1242 } else if (obj->type == ACPI_TYPE_INTEGER) {
1243 devices = (u32) obj->integer.value;
1244 } else {
1245 kfree(out.pointer);
1246 return AE_ERROR;
1247 }
1248 } else {
1249 kfree(out.pointer);
1250 return AE_ERROR;
1251 }
1252
1253 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1254 if (devices & 0x07)
1255 interface->capability |= ACER_CAP_WIRELESS;
1256 if (devices & 0x40)
1257 interface->capability |= ACER_CAP_THREEG;
1258 if (devices & 0x10)
1259 interface->capability |= ACER_CAP_BLUETOOTH;
1260
1261 if (!(devices & 0x20))
1262 max_brightness = 0x9;
1263
1264 kfree(out.pointer);
1265 return status;
1266}
1267
1268static struct wmi_interface wmid_interface = {
1269 .type = ACER_WMID,
1270};
1271
1272static struct wmi_interface wmid_v2_interface = {
1273 .type = ACER_WMID_v2,
1274};
1275
1276/*
1277 * Generic Device (interface-independent)
1278 */
1279
1280static acpi_status get_u32(u32 *value, u32 cap)
1281{
1282 acpi_status status = AE_ERROR;
1283
1284 switch (interface->type) {
1285 case ACER_AMW0:
1286 status = AMW0_get_u32(value, cap);
1287 break;
1288 case ACER_AMW0_V2:
1289 if (cap == ACER_CAP_MAILLED) {
1290 status = AMW0_get_u32(value, cap);
1291 break;
1292 }
1293 case ACER_WMID:
1294 status = WMID_get_u32(value, cap);
1295 break;
1296 case ACER_WMID_v2:
1297 if (cap & (ACER_CAP_WIRELESS |
1298 ACER_CAP_BLUETOOTH |
1299 ACER_CAP_THREEG))
1300 status = wmid_v2_get_u32(value, cap);
1301 else if (wmi_has_guid(WMID_GUID2))
1302 status = WMID_get_u32(value, cap);
1303 break;
1304 }
1305
1306 return status;
1307}
1308
1309static acpi_status set_u32(u32 value, u32 cap)
1310{
1311 acpi_status status;
1312
1313 if (interface->capability & cap) {
1314 switch (interface->type) {
1315 case ACER_AMW0:
1316 return AMW0_set_u32(value, cap);
1317 case ACER_AMW0_V2:
1318 if (cap == ACER_CAP_MAILLED)
1319 return AMW0_set_u32(value, cap);
1320
1321 /*
1322 * On some models, some WMID methods don't toggle
1323 * properly. For those cases, we want to run the AMW0
1324 * method afterwards to be certain we've really toggled
1325 * the device state.
1326 */
1327 if (cap == ACER_CAP_WIRELESS ||
1328 cap == ACER_CAP_BLUETOOTH) {
1329 status = WMID_set_u32(value, cap);
1330 if (ACPI_FAILURE(status))
1331 return status;
1332
1333 return AMW0_set_u32(value, cap);
1334 }
1335 case ACER_WMID:
1336 return WMID_set_u32(value, cap);
1337 case ACER_WMID_v2:
1338 if (cap & (ACER_CAP_WIRELESS |
1339 ACER_CAP_BLUETOOTH |
1340 ACER_CAP_THREEG))
1341 return wmid_v2_set_u32(value, cap);
1342 else if (wmi_has_guid(WMID_GUID2))
1343 return WMID_set_u32(value, cap);
1344 default:
1345 return AE_BAD_PARAMETER;
1346 }
1347 }
1348 return AE_BAD_PARAMETER;
1349}
1350
1351static void __init acer_commandline_init(void)
1352{
1353 /*
1354 * These will all fail silently if the value given is invalid, or the
1355 * capability isn't available on the given interface
1356 */
1357 if (mailled >= 0)
1358 set_u32(mailled, ACER_CAP_MAILLED);
1359 if (!has_type_aa && threeg >= 0)
1360 set_u32(threeg, ACER_CAP_THREEG);
1361 if (brightness >= 0)
1362 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1363}
1364
1365/*
1366 * LED device (Mail LED only, no other LEDs known yet)
1367 */
1368static void mail_led_set(struct led_classdev *led_cdev,
1369enum led_brightness value)
1370{
1371 set_u32(value, ACER_CAP_MAILLED);
1372}
1373
1374static struct led_classdev mail_led = {
1375 .name = "acer-wmi::mail",
1376 .brightness_set = mail_led_set,
1377};
1378
1379static int acer_led_init(struct device *dev)
1380{
1381 return led_classdev_register(dev, &mail_led);
1382}
1383
1384static void acer_led_exit(void)
1385{
1386 set_u32(LED_OFF, ACER_CAP_MAILLED);
1387 led_classdev_unregister(&mail_led);
1388}
1389
1390/*
1391 * Backlight device
1392 */
1393static struct backlight_device *acer_backlight_device;
1394
1395static int read_brightness(struct backlight_device *bd)
1396{
1397 u32 value;
1398 get_u32(&value, ACER_CAP_BRIGHTNESS);
1399 return value;
1400}
1401
1402static int update_bl_status(struct backlight_device *bd)
1403{
1404 int intensity = bd->props.brightness;
1405
1406 if (bd->props.power != FB_BLANK_UNBLANK)
1407 intensity = 0;
1408 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1409 intensity = 0;
1410
1411 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1412
1413 return 0;
1414}
1415
1416static const struct backlight_ops acer_bl_ops = {
1417 .get_brightness = read_brightness,
1418 .update_status = update_bl_status,
1419};
1420
1421static int acer_backlight_init(struct device *dev)
1422{
1423 struct backlight_properties props;
1424 struct backlight_device *bd;
1425
1426 memset(&props, 0, sizeof(struct backlight_properties));
1427 props.type = BACKLIGHT_PLATFORM;
1428 props.max_brightness = max_brightness;
1429 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1430 &props);
1431 if (IS_ERR(bd)) {
1432 pr_err("Could not register Acer backlight device\n");
1433 acer_backlight_device = NULL;
1434 return PTR_ERR(bd);
1435 }
1436
1437 acer_backlight_device = bd;
1438
1439 bd->props.power = FB_BLANK_UNBLANK;
1440 bd->props.brightness = read_brightness(bd);
1441 backlight_update_status(bd);
1442 return 0;
1443}
1444
1445static void acer_backlight_exit(void)
1446{
1447 backlight_device_unregister(acer_backlight_device);
1448}
1449
1450/*
1451 * Accelerometer device
1452 */
1453static acpi_handle gsensor_handle;
1454
1455static int acer_gsensor_init(void)
1456{
1457 acpi_status status;
1458 struct acpi_buffer output;
1459 union acpi_object out_obj;
1460
1461 output.length = sizeof(out_obj);
1462 output.pointer = &out_obj;
1463 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1464 if (ACPI_FAILURE(status))
1465 return -1;
1466
1467 return 0;
1468}
1469
1470static int acer_gsensor_open(struct input_dev *input)
1471{
1472 return acer_gsensor_init();
1473}
1474
1475static int acer_gsensor_event(void)
1476{
1477 acpi_status status;
1478 struct acpi_buffer output;
1479 union acpi_object out_obj[5];
1480
1481 if (!has_cap(ACER_CAP_ACCEL))
1482 return -1;
1483
1484 output.length = sizeof(out_obj);
1485 output.pointer = out_obj;
1486
1487 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1488 if (ACPI_FAILURE(status))
1489 return -1;
1490
1491 if (out_obj->package.count != 4)
1492 return -1;
1493
1494 input_report_abs(acer_wmi_accel_dev, ABS_X,
1495 (s16)out_obj->package.elements[0].integer.value);
1496 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1497 (s16)out_obj->package.elements[1].integer.value);
1498 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1499 (s16)out_obj->package.elements[2].integer.value);
1500 input_sync(acer_wmi_accel_dev);
1501 return 0;
1502}
1503
1504/*
1505 * Rfkill devices
1506 */
1507static void acer_rfkill_update(struct work_struct *ignored);
1508static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1509static void acer_rfkill_update(struct work_struct *ignored)
1510{
1511 u32 state;
1512 acpi_status status;
1513
1514 if (has_cap(ACER_CAP_WIRELESS)) {
1515 status = get_u32(&state, ACER_CAP_WIRELESS);
1516 if (ACPI_SUCCESS(status)) {
1517 if (quirks->wireless == 3)
1518 rfkill_set_hw_state(wireless_rfkill, !state);
1519 else
1520 rfkill_set_sw_state(wireless_rfkill, !state);
1521 }
1522 }
1523
1524 if (has_cap(ACER_CAP_BLUETOOTH)) {
1525 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1526 if (ACPI_SUCCESS(status))
1527 rfkill_set_sw_state(bluetooth_rfkill, !state);
1528 }
1529
1530 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1531 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1532 if (ACPI_SUCCESS(status))
1533 rfkill_set_sw_state(threeg_rfkill, !state);
1534 }
1535
1536 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1537}
1538
1539static int acer_rfkill_set(void *data, bool blocked)
1540{
1541 acpi_status status;
1542 u32 cap = (unsigned long)data;
1543
1544 if (rfkill_inited) {
1545 status = set_u32(!blocked, cap);
1546 if (ACPI_FAILURE(status))
1547 return -ENODEV;
1548 }
1549
1550 return 0;
1551}
1552
1553static const struct rfkill_ops acer_rfkill_ops = {
1554 .set_block = acer_rfkill_set,
1555};
1556
1557static struct rfkill *acer_rfkill_register(struct device *dev,
1558 enum rfkill_type type,
1559 char *name, u32 cap)
1560{
1561 int err;
1562 struct rfkill *rfkill_dev;
1563 u32 state;
1564 acpi_status status;
1565
1566 rfkill_dev = rfkill_alloc(name, dev, type,
1567 &acer_rfkill_ops,
1568 (void *)(unsigned long)cap);
1569 if (!rfkill_dev)
1570 return ERR_PTR(-ENOMEM);
1571
1572 status = get_u32(&state, cap);
1573
1574 err = rfkill_register(rfkill_dev);
1575 if (err) {
1576 rfkill_destroy(rfkill_dev);
1577 return ERR_PTR(err);
1578 }
1579
1580 if (ACPI_SUCCESS(status))
1581 rfkill_set_sw_state(rfkill_dev, !state);
1582
1583 return rfkill_dev;
1584}
1585
1586static int acer_rfkill_init(struct device *dev)
1587{
1588 int err;
1589
1590 if (has_cap(ACER_CAP_WIRELESS)) {
1591 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1592 "acer-wireless", ACER_CAP_WIRELESS);
1593 if (IS_ERR(wireless_rfkill)) {
1594 err = PTR_ERR(wireless_rfkill);
1595 goto error_wireless;
1596 }
1597 }
1598
1599 if (has_cap(ACER_CAP_BLUETOOTH)) {
1600 bluetooth_rfkill = acer_rfkill_register(dev,
1601 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1602 ACER_CAP_BLUETOOTH);
1603 if (IS_ERR(bluetooth_rfkill)) {
1604 err = PTR_ERR(bluetooth_rfkill);
1605 goto error_bluetooth;
1606 }
1607 }
1608
1609 if (has_cap(ACER_CAP_THREEG)) {
1610 threeg_rfkill = acer_rfkill_register(dev,
1611 RFKILL_TYPE_WWAN, "acer-threeg",
1612 ACER_CAP_THREEG);
1613 if (IS_ERR(threeg_rfkill)) {
1614 err = PTR_ERR(threeg_rfkill);
1615 goto error_threeg;
1616 }
1617 }
1618
1619 rfkill_inited = true;
1620
1621 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1622 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1623 schedule_delayed_work(&acer_rfkill_work,
1624 round_jiffies_relative(HZ));
1625
1626 return 0;
1627
1628error_threeg:
1629 if (has_cap(ACER_CAP_BLUETOOTH)) {
1630 rfkill_unregister(bluetooth_rfkill);
1631 rfkill_destroy(bluetooth_rfkill);
1632 }
1633error_bluetooth:
1634 if (has_cap(ACER_CAP_WIRELESS)) {
1635 rfkill_unregister(wireless_rfkill);
1636 rfkill_destroy(wireless_rfkill);
1637 }
1638error_wireless:
1639 return err;
1640}
1641
1642static void acer_rfkill_exit(void)
1643{
1644 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1645 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1646 cancel_delayed_work_sync(&acer_rfkill_work);
1647
1648 if (has_cap(ACER_CAP_WIRELESS)) {
1649 rfkill_unregister(wireless_rfkill);
1650 rfkill_destroy(wireless_rfkill);
1651 }
1652
1653 if (has_cap(ACER_CAP_BLUETOOTH)) {
1654 rfkill_unregister(bluetooth_rfkill);
1655 rfkill_destroy(bluetooth_rfkill);
1656 }
1657
1658 if (has_cap(ACER_CAP_THREEG)) {
1659 rfkill_unregister(threeg_rfkill);
1660 rfkill_destroy(threeg_rfkill);
1661 }
1662 return;
1663}
1664
1665static void acer_wmi_notify(u32 value, void *context)
1666{
1667 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1668 union acpi_object *obj;
1669 struct event_return_value return_value;
1670 acpi_status status;
1671 u16 device_state;
1672 const struct key_entry *key;
1673 u32 scancode;
1674
1675 status = wmi_get_event_data(value, &response);
1676 if (status != AE_OK) {
1677 pr_warn("bad event status 0x%x\n", status);
1678 return;
1679 }
1680
1681 obj = (union acpi_object *)response.pointer;
1682
1683 if (!obj)
1684 return;
1685 if (obj->type != ACPI_TYPE_BUFFER) {
1686 pr_warn("Unknown response received %d\n", obj->type);
1687 kfree(obj);
1688 return;
1689 }
1690 if (obj->buffer.length != 8) {
1691 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1692 kfree(obj);
1693 return;
1694 }
1695
1696 return_value = *((struct event_return_value *)obj->buffer.pointer);
1697 kfree(obj);
1698
1699 switch (return_value.function) {
1700 case WMID_HOTKEY_EVENT:
1701 device_state = return_value.device_state;
1702 pr_debug("device state: 0x%x\n", device_state);
1703
1704 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1705 return_value.key_num);
1706 if (!key) {
1707 pr_warn("Unknown key number - 0x%x\n",
1708 return_value.key_num);
1709 } else {
1710 scancode = return_value.key_num;
1711 switch (key->keycode) {
1712 case KEY_WLAN:
1713 case KEY_BLUETOOTH:
1714 if (has_cap(ACER_CAP_WIRELESS))
1715 rfkill_set_sw_state(wireless_rfkill,
1716 !(device_state & ACER_WMID3_GDS_WIRELESS));
1717 if (has_cap(ACER_CAP_THREEG))
1718 rfkill_set_sw_state(threeg_rfkill,
1719 !(device_state & ACER_WMID3_GDS_THREEG));
1720 if (has_cap(ACER_CAP_BLUETOOTH))
1721 rfkill_set_sw_state(bluetooth_rfkill,
1722 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1723 break;
1724 case KEY_TOUCHPAD_TOGGLE:
1725 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1726 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1727 }
1728 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1729 }
1730 break;
1731 case WMID_ACCEL_EVENT:
1732 acer_gsensor_event();
1733 break;
1734 default:
1735 pr_warn("Unknown function number - %d - %d\n",
1736 return_value.function, return_value.key_num);
1737 break;
1738 }
1739}
1740
1741static acpi_status __init
1742wmid3_set_lm_mode(struct lm_input_params *params,
1743 struct lm_return_value *return_value)
1744{
1745 acpi_status status;
1746 union acpi_object *obj;
1747
1748 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1749 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1750
1751 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1752 if (ACPI_FAILURE(status))
1753 return status;
1754
1755 obj = output.pointer;
1756
1757 if (!obj)
1758 return AE_ERROR;
1759 else if (obj->type != ACPI_TYPE_BUFFER) {
1760 kfree(obj);
1761 return AE_ERROR;
1762 }
1763 if (obj->buffer.length != 4) {
1764 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1765 kfree(obj);
1766 return AE_ERROR;
1767 }
1768
1769 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1770 kfree(obj);
1771
1772 return status;
1773}
1774
1775static int __init acer_wmi_enable_ec_raw(void)
1776{
1777 struct lm_return_value return_value;
1778 acpi_status status;
1779 struct lm_input_params params = {
1780 .function_num = 0x1,
1781 .commun_devices = 0xFFFF,
1782 .devices = 0xFFFF,
1783 .lm_status = 0x00, /* Launch Manager Deactive */
1784 };
1785
1786 status = wmid3_set_lm_mode(¶ms, &return_value);
1787
1788 if (return_value.error_code || return_value.ec_return_value)
1789 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1790 return_value.error_code,
1791 return_value.ec_return_value);
1792 else
1793 pr_info("Enabled EC raw mode\n");
1794
1795 return status;
1796}
1797
1798static int __init acer_wmi_enable_lm(void)
1799{
1800 struct lm_return_value return_value;
1801 acpi_status status;
1802 struct lm_input_params params = {
1803 .function_num = 0x1,
1804 .commun_devices = 0xFFFF,
1805 .devices = 0xFFFF,
1806 .lm_status = 0x01, /* Launch Manager Active */
1807 };
1808
1809 status = wmid3_set_lm_mode(¶ms, &return_value);
1810
1811 if (return_value.error_code || return_value.ec_return_value)
1812 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1813 return_value.error_code,
1814 return_value.ec_return_value);
1815
1816 return status;
1817}
1818
1819static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1820 void *ctx, void **retval)
1821{
1822 *(acpi_handle *)retval = ah;
1823 return AE_OK;
1824}
1825
1826static int __init acer_wmi_get_handle(const char *name, const char *prop,
1827 acpi_handle *ah)
1828{
1829 acpi_status status;
1830 acpi_handle handle;
1831
1832 BUG_ON(!name || !ah);
1833
1834 handle = NULL;
1835 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1836 (void *)name, &handle);
1837
1838 if (ACPI_SUCCESS(status)) {
1839 *ah = handle;
1840 return 0;
1841 } else {
1842 return -ENODEV;
1843 }
1844}
1845
1846static int __init acer_wmi_accel_setup(void)
1847{
1848 int err;
1849
1850 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1851 if (err)
1852 return err;
1853
1854 interface->capability |= ACER_CAP_ACCEL;
1855
1856 acer_wmi_accel_dev = input_allocate_device();
1857 if (!acer_wmi_accel_dev)
1858 return -ENOMEM;
1859
1860 acer_wmi_accel_dev->open = acer_gsensor_open;
1861
1862 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1863 acer_wmi_accel_dev->phys = "wmi/input1";
1864 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1865 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1866 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1867 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1868 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1869
1870 err = input_register_device(acer_wmi_accel_dev);
1871 if (err)
1872 goto err_free_dev;
1873
1874 return 0;
1875
1876err_free_dev:
1877 input_free_device(acer_wmi_accel_dev);
1878 return err;
1879}
1880
1881static void acer_wmi_accel_destroy(void)
1882{
1883 input_unregister_device(acer_wmi_accel_dev);
1884}
1885
1886static int __init acer_wmi_input_setup(void)
1887{
1888 acpi_status status;
1889 int err;
1890
1891 acer_wmi_input_dev = input_allocate_device();
1892 if (!acer_wmi_input_dev)
1893 return -ENOMEM;
1894
1895 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1896 acer_wmi_input_dev->phys = "wmi/input0";
1897 acer_wmi_input_dev->id.bustype = BUS_HOST;
1898
1899 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1900 if (err)
1901 goto err_free_dev;
1902
1903 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1904 acer_wmi_notify, NULL);
1905 if (ACPI_FAILURE(status)) {
1906 err = -EIO;
1907 goto err_free_keymap;
1908 }
1909
1910 err = input_register_device(acer_wmi_input_dev);
1911 if (err)
1912 goto err_uninstall_notifier;
1913
1914 return 0;
1915
1916err_uninstall_notifier:
1917 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1918err_free_keymap:
1919 sparse_keymap_free(acer_wmi_input_dev);
1920err_free_dev:
1921 input_free_device(acer_wmi_input_dev);
1922 return err;
1923}
1924
1925static void acer_wmi_input_destroy(void)
1926{
1927 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1928 sparse_keymap_free(acer_wmi_input_dev);
1929 input_unregister_device(acer_wmi_input_dev);
1930}
1931
1932/*
1933 * debugfs functions
1934 */
1935static u32 get_wmid_devices(void)
1936{
1937 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1938 union acpi_object *obj;
1939 acpi_status status;
1940 u32 devices = 0;
1941
1942 status = wmi_query_block(WMID_GUID2, 1, &out);
1943 if (ACPI_FAILURE(status))
1944 return 0;
1945
1946 obj = (union acpi_object *) out.pointer;
1947 if (obj) {
1948 if (obj->type == ACPI_TYPE_BUFFER &&
1949 (obj->buffer.length == sizeof(u32) ||
1950 obj->buffer.length == sizeof(u64))) {
1951 devices = *((u32 *) obj->buffer.pointer);
1952 } else if (obj->type == ACPI_TYPE_INTEGER) {
1953 devices = (u32) obj->integer.value;
1954 }
1955 }
1956
1957 kfree(out.pointer);
1958 return devices;
1959}
1960
1961/*
1962 * Platform device
1963 */
1964static int acer_platform_probe(struct platform_device *device)
1965{
1966 int err;
1967
1968 if (has_cap(ACER_CAP_MAILLED)) {
1969 err = acer_led_init(&device->dev);
1970 if (err)
1971 goto error_mailled;
1972 }
1973
1974 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1975 err = acer_backlight_init(&device->dev);
1976 if (err)
1977 goto error_brightness;
1978 }
1979
1980 err = acer_rfkill_init(&device->dev);
1981 if (err)
1982 goto error_rfkill;
1983
1984 return err;
1985
1986error_rfkill:
1987 if (has_cap(ACER_CAP_BRIGHTNESS))
1988 acer_backlight_exit();
1989error_brightness:
1990 if (has_cap(ACER_CAP_MAILLED))
1991 acer_led_exit();
1992error_mailled:
1993 return err;
1994}
1995
1996static int acer_platform_remove(struct platform_device *device)
1997{
1998 if (has_cap(ACER_CAP_MAILLED))
1999 acer_led_exit();
2000 if (has_cap(ACER_CAP_BRIGHTNESS))
2001 acer_backlight_exit();
2002
2003 acer_rfkill_exit();
2004 return 0;
2005}
2006
2007#ifdef CONFIG_PM_SLEEP
2008static int acer_suspend(struct device *dev)
2009{
2010 u32 value;
2011 struct acer_data *data = &interface->data;
2012
2013 if (!data)
2014 return -ENOMEM;
2015
2016 if (has_cap(ACER_CAP_MAILLED)) {
2017 get_u32(&value, ACER_CAP_MAILLED);
2018 set_u32(LED_OFF, ACER_CAP_MAILLED);
2019 data->mailled = value;
2020 }
2021
2022 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2023 get_u32(&value, ACER_CAP_BRIGHTNESS);
2024 data->brightness = value;
2025 }
2026
2027 return 0;
2028}
2029
2030static int acer_resume(struct device *dev)
2031{
2032 struct acer_data *data = &interface->data;
2033
2034 if (!data)
2035 return -ENOMEM;
2036
2037 if (has_cap(ACER_CAP_MAILLED))
2038 set_u32(data->mailled, ACER_CAP_MAILLED);
2039
2040 if (has_cap(ACER_CAP_BRIGHTNESS))
2041 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2042
2043 if (has_cap(ACER_CAP_ACCEL))
2044 acer_gsensor_init();
2045
2046 return 0;
2047}
2048#else
2049#define acer_suspend NULL
2050#define acer_resume NULL
2051#endif
2052
2053static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2054
2055static void acer_platform_shutdown(struct platform_device *device)
2056{
2057 struct acer_data *data = &interface->data;
2058
2059 if (!data)
2060 return;
2061
2062 if (has_cap(ACER_CAP_MAILLED))
2063 set_u32(LED_OFF, ACER_CAP_MAILLED);
2064}
2065
2066static struct platform_driver acer_platform_driver = {
2067 .driver = {
2068 .name = "acer-wmi",
2069 .pm = &acer_pm,
2070 },
2071 .probe = acer_platform_probe,
2072 .remove = acer_platform_remove,
2073 .shutdown = acer_platform_shutdown,
2074};
2075
2076static struct platform_device *acer_platform_device;
2077
2078static void remove_debugfs(void)
2079{
2080 debugfs_remove(interface->debug.devices);
2081 debugfs_remove(interface->debug.root);
2082}
2083
2084static int __init create_debugfs(void)
2085{
2086 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2087 if (!interface->debug.root) {
2088 pr_err("Failed to create debugfs directory");
2089 return -ENOMEM;
2090 }
2091
2092 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2093 interface->debug.root,
2094 &interface->debug.wmid_devices);
2095 if (!interface->debug.devices)
2096 goto error_debugfs;
2097
2098 return 0;
2099
2100error_debugfs:
2101 remove_debugfs();
2102 return -ENOMEM;
2103}
2104
2105static int __init acer_wmi_init(void)
2106{
2107 int err;
2108
2109 pr_info("Acer Laptop ACPI-WMI Extras\n");
2110
2111 if (dmi_check_system(acer_blacklist)) {
2112 pr_info("Blacklisted hardware detected - not loading\n");
2113 return -ENODEV;
2114 }
2115
2116 find_quirks();
2117
2118 /*
2119 * Detect which ACPI-WMI interface we're using.
2120 */
2121 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2122 interface = &AMW0_V2_interface;
2123
2124 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2125 interface = &wmid_interface;
2126
2127 if (wmi_has_guid(WMID_GUID3))
2128 interface = &wmid_v2_interface;
2129
2130 if (interface)
2131 dmi_walk(type_aa_dmi_decode, NULL);
2132
2133 if (wmi_has_guid(WMID_GUID2) && interface) {
2134 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2135 pr_err("Unable to detect available WMID devices\n");
2136 return -ENODEV;
2137 }
2138 /* WMID always provides brightness methods */
2139 interface->capability |= ACER_CAP_BRIGHTNESS;
2140 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2141 pr_err("No WMID device detection method found\n");
2142 return -ENODEV;
2143 }
2144
2145 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2146 interface = &AMW0_interface;
2147
2148 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2149 pr_err("Unable to detect available AMW0 devices\n");
2150 return -ENODEV;
2151 }
2152 }
2153
2154 if (wmi_has_guid(AMW0_GUID1))
2155 AMW0_find_mailled();
2156
2157 if (!interface) {
2158 pr_err("No or unsupported WMI interface, unable to load\n");
2159 return -ENODEV;
2160 }
2161
2162 set_quirks();
2163
2164 if (dmi_check_system(video_vendor_dmi_table))
2165 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2166
2167 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2168 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2169
2170 if (wmi_has_guid(WMID_GUID3)) {
2171 if (ec_raw_mode) {
2172 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2173 pr_err("Cannot enable EC raw mode\n");
2174 return -ENODEV;
2175 }
2176 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2177 pr_err("Cannot enable Launch Manager mode\n");
2178 return -ENODEV;
2179 }
2180 } else if (ec_raw_mode) {
2181 pr_info("No WMID EC raw mode enable method\n");
2182 }
2183
2184 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2185 err = acer_wmi_input_setup();
2186 if (err)
2187 return err;
2188 }
2189
2190 acer_wmi_accel_setup();
2191
2192 err = platform_driver_register(&acer_platform_driver);
2193 if (err) {
2194 pr_err("Unable to register platform driver\n");
2195 goto error_platform_register;
2196 }
2197
2198 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2199 if (!acer_platform_device) {
2200 err = -ENOMEM;
2201 goto error_device_alloc;
2202 }
2203
2204 err = platform_device_add(acer_platform_device);
2205 if (err)
2206 goto error_device_add;
2207
2208 if (wmi_has_guid(WMID_GUID2)) {
2209 interface->debug.wmid_devices = get_wmid_devices();
2210 err = create_debugfs();
2211 if (err)
2212 goto error_create_debugfs;
2213 }
2214
2215 /* Override any initial settings with values from the commandline */
2216 acer_commandline_init();
2217
2218 return 0;
2219
2220error_create_debugfs:
2221 platform_device_del(acer_platform_device);
2222error_device_add:
2223 platform_device_put(acer_platform_device);
2224error_device_alloc:
2225 platform_driver_unregister(&acer_platform_driver);
2226error_platform_register:
2227 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2228 acer_wmi_input_destroy();
2229 if (has_cap(ACER_CAP_ACCEL))
2230 acer_wmi_accel_destroy();
2231
2232 return err;
2233}
2234
2235static void __exit acer_wmi_exit(void)
2236{
2237 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2238 acer_wmi_input_destroy();
2239
2240 if (has_cap(ACER_CAP_ACCEL))
2241 acer_wmi_accel_destroy();
2242
2243 remove_debugfs();
2244 platform_device_unregister(acer_platform_device);
2245 platform_driver_unregister(&acer_platform_driver);
2246
2247 pr_info("Acer Laptop WMI Extras unloaded\n");
2248 return;
2249}
2250
2251module_init(acer_wmi_init);
2252module_exit(acer_wmi_exit);
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
33MODULE_AUTHOR("Carlos Corbacho");
34MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
35MODULE_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#define ACER_WMID_SET_GAMING_LED_METHODID 2
64#define ACER_WMID_GET_GAMING_LED_METHODID 4
65#define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
66#define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
67
68/*
69 * Acer ACPI method GUIDs
70 */
71#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
72#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
73#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
74#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
75#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
76#define WMID_GUID4 "7A4DDFE7-5B5D-40B4-8595-4408E0CC7F56"
77
78/*
79 * Acer ACPI event GUIDs
80 */
81#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
82
83MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
84MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
85MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
86
87enum acer_wmi_event_ids {
88 WMID_HOTKEY_EVENT = 0x1,
89 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
90 WMID_GAMING_TURBO_KEY_EVENT = 0x7,
91};
92
93static const struct key_entry acer_wmi_keymap[] __initconst = {
94 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
95 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
96 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
97 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
98 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
99 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
100 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
101 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
102 {KE_KEY, 0x27, {KEY_HELP} },
103 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
104 {KE_IGNORE, 0x41, {KEY_MUTE} },
105 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
106 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
107 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
108 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
109 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
110 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
111 {KE_IGNORE, 0x45, {KEY_STOP} },
112 {KE_IGNORE, 0x50, {KEY_STOP} },
113 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
114 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
115 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
116 /*
117 * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
118 * with the "Video Bus" input device events. But sometimes it is not
119 * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
120 * udev/hwdb can override it on systems where it is not a dup.
121 */
122 {KE_KEY, 0x61, {KEY_UNKNOWN} },
123 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
124 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
125 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
126 {KE_IGNORE, 0x81, {KEY_SLEEP} },
127 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
128 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
129 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
130 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
131 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
132 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
133 {KE_KEY, 0x86, {KEY_WLAN} },
134 {KE_KEY, 0x87, {KEY_POWER} },
135 {KE_END, 0}
136};
137
138static struct input_dev *acer_wmi_input_dev;
139static struct input_dev *acer_wmi_accel_dev;
140
141struct event_return_value {
142 u8 function;
143 u8 key_num;
144 u16 device_state;
145 u16 reserved1;
146 u8 kbd_dock_state;
147 u8 reserved2;
148} __packed;
149
150/*
151 * GUID3 Get Device Status device flags
152 */
153#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
154#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
155#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
156#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
157#define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
158
159#define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
160
161/* Hotkey Customized Setting and Acer Application Status.
162 * Set Device Default Value and Report Acer Application Status.
163 * When Acer Application starts, it will run this method to inform
164 * BIOS/EC that Acer Application is on.
165 * App Status
166 * Bit[0]: Launch Manager Status
167 * Bit[1]: ePM Status
168 * Bit[2]: Device Control Status
169 * Bit[3]: Acer Power Button Utility Status
170 * Bit[4]: RF Button Status
171 * Bit[5]: ODD PM Status
172 * Bit[6]: Device Default Value Control
173 * Bit[7]: Hall Sensor Application Status
174 */
175struct func_input_params {
176 u8 function_num; /* Function Number */
177 u16 commun_devices; /* Communication type devices default status */
178 u16 devices; /* Other type devices default status */
179 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
180 u8 app_mask; /* Bit mask to app_status */
181 u8 reserved;
182} __packed;
183
184struct func_return_value {
185 u8 error_code; /* Error Code */
186 u8 ec_return_value; /* EC Return Value */
187 u16 reserved;
188} __packed;
189
190struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
191 u8 function_num; /* Function Number */
192 u8 hotkey_number; /* Hotkey Number */
193 u16 devices; /* Set Device */
194 u8 volume_value; /* Volume Value */
195} __packed;
196
197struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
198 u8 function_num; /* Function Number */
199 u8 hotkey_number; /* Hotkey Number */
200 u16 devices; /* Get Device */
201} __packed;
202
203struct wmid3_gds_return_value { /* Get Device Status return value*/
204 u8 error_code; /* Error Code */
205 u8 ec_return_value; /* EC Return Value */
206 u16 devices; /* Current Device Status */
207 u32 reserved;
208} __packed;
209
210struct hotkey_function_type_aa {
211 u8 type;
212 u8 length;
213 u16 handle;
214 u16 commun_func_bitmap;
215 u16 application_func_bitmap;
216 u16 media_func_bitmap;
217 u16 display_func_bitmap;
218 u16 others_func_bitmap;
219 u8 commun_fn_key_number;
220} __packed;
221
222/*
223 * Interface capability flags
224 */
225#define ACER_CAP_MAILLED BIT(0)
226#define ACER_CAP_WIRELESS BIT(1)
227#define ACER_CAP_BLUETOOTH BIT(2)
228#define ACER_CAP_BRIGHTNESS BIT(3)
229#define ACER_CAP_THREEG BIT(4)
230#define ACER_CAP_SET_FUNCTION_MODE BIT(5)
231#define ACER_CAP_KBD_DOCK BIT(6)
232#define ACER_CAP_TURBO_OC BIT(7)
233#define ACER_CAP_TURBO_LED BIT(8)
234#define ACER_CAP_TURBO_FAN BIT(9)
235
236/*
237 * Interface type flags
238 */
239enum interface_flags {
240 ACER_AMW0,
241 ACER_AMW0_V2,
242 ACER_WMID,
243 ACER_WMID_v2,
244};
245
246#define ACER_DEFAULT_WIRELESS 0
247#define ACER_DEFAULT_BLUETOOTH 0
248#define ACER_DEFAULT_MAILLED 0
249#define ACER_DEFAULT_THREEG 0
250
251static int max_brightness = 0xF;
252
253static int mailled = -1;
254static int brightness = -1;
255static int threeg = -1;
256static int force_series;
257static int force_caps = -1;
258static bool ec_raw_mode;
259static bool has_type_aa;
260static u16 commun_func_bitmap;
261static u8 commun_fn_key_number;
262
263module_param(mailled, int, 0444);
264module_param(brightness, int, 0444);
265module_param(threeg, int, 0444);
266module_param(force_series, int, 0444);
267module_param(force_caps, int, 0444);
268module_param(ec_raw_mode, bool, 0444);
269MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
270MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
271MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
272MODULE_PARM_DESC(force_series, "Force a different laptop series");
273MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
274MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
275
276struct acer_data {
277 int mailled;
278 int threeg;
279 int brightness;
280};
281
282struct acer_debug {
283 struct dentry *root;
284 u32 wmid_devices;
285};
286
287static struct rfkill *wireless_rfkill;
288static struct rfkill *bluetooth_rfkill;
289static struct rfkill *threeg_rfkill;
290static bool rfkill_inited;
291
292/* Each low-level interface must define at least some of the following */
293struct wmi_interface {
294 /* The WMI device type */
295 u32 type;
296
297 /* The capabilities this interface provides */
298 u32 capability;
299
300 /* Private data for the current interface */
301 struct acer_data data;
302
303 /* debugfs entries associated with this interface */
304 struct acer_debug debug;
305};
306
307/* The static interface pointer, points to the currently detected interface */
308static struct wmi_interface *interface;
309
310/*
311 * Embedded Controller quirks
312 * Some laptops require us to directly access the EC to either enable or query
313 * features that are not available through WMI.
314 */
315
316struct quirk_entry {
317 u8 wireless;
318 u8 mailled;
319 s8 brightness;
320 u8 bluetooth;
321 u8 turbo;
322 u8 cpu_fans;
323 u8 gpu_fans;
324};
325
326static struct quirk_entry *quirks;
327
328static void __init set_quirks(void)
329{
330 if (quirks->mailled)
331 interface->capability |= ACER_CAP_MAILLED;
332
333 if (quirks->brightness)
334 interface->capability |= ACER_CAP_BRIGHTNESS;
335
336 if (quirks->turbo)
337 interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
338 | ACER_CAP_TURBO_FAN;
339}
340
341static int __init dmi_matched(const struct dmi_system_id *dmi)
342{
343 quirks = dmi->driver_data;
344 return 1;
345}
346
347static int __init set_force_caps(const struct dmi_system_id *dmi)
348{
349 if (force_caps == -1) {
350 force_caps = (uintptr_t)dmi->driver_data;
351 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
352 }
353 return 1;
354}
355
356static struct quirk_entry quirk_unknown = {
357};
358
359static struct quirk_entry quirk_acer_aspire_1520 = {
360 .brightness = -1,
361};
362
363static struct quirk_entry quirk_acer_travelmate_2490 = {
364 .mailled = 1,
365};
366
367static struct quirk_entry quirk_acer_predator_ph315_53 = {
368 .turbo = 1,
369 .cpu_fans = 1,
370 .gpu_fans = 1,
371};
372
373/* This AMW0 laptop has no bluetooth */
374static struct quirk_entry quirk_medion_md_98300 = {
375 .wireless = 1,
376};
377
378static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
379 .wireless = 2,
380};
381
382static struct quirk_entry quirk_lenovo_ideapad_s205 = {
383 .wireless = 3,
384};
385
386/* The Aspire One has a dummy ACPI-WMI interface - disable it */
387static const struct dmi_system_id acer_blacklist[] __initconst = {
388 {
389 .ident = "Acer Aspire One (SSD)",
390 .matches = {
391 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
392 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
393 },
394 },
395 {
396 .ident = "Acer Aspire One (HDD)",
397 .matches = {
398 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
399 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
400 },
401 },
402 {}
403};
404
405static const struct dmi_system_id amw0_whitelist[] __initconst = {
406 {
407 .ident = "Acer",
408 .matches = {
409 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
410 },
411 },
412 {
413 .ident = "Gateway",
414 .matches = {
415 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
416 },
417 },
418 {
419 .ident = "Packard Bell",
420 .matches = {
421 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
422 },
423 },
424 {}
425};
426
427/*
428 * This quirk table is only for Acer/Gateway/Packard Bell family
429 * that those machines are supported by acer-wmi driver.
430 */
431static const struct dmi_system_id acer_quirks[] __initconst = {
432 {
433 .callback = dmi_matched,
434 .ident = "Acer Aspire 1360",
435 .matches = {
436 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
437 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
438 },
439 .driver_data = &quirk_acer_aspire_1520,
440 },
441 {
442 .callback = dmi_matched,
443 .ident = "Acer Aspire 1520",
444 .matches = {
445 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
446 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
447 },
448 .driver_data = &quirk_acer_aspire_1520,
449 },
450 {
451 .callback = dmi_matched,
452 .ident = "Acer Aspire 3100",
453 .matches = {
454 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
455 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
456 },
457 .driver_data = &quirk_acer_travelmate_2490,
458 },
459 {
460 .callback = dmi_matched,
461 .ident = "Acer Aspire 3610",
462 .matches = {
463 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
464 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
465 },
466 .driver_data = &quirk_acer_travelmate_2490,
467 },
468 {
469 .callback = dmi_matched,
470 .ident = "Acer Aspire 5100",
471 .matches = {
472 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
473 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
474 },
475 .driver_data = &quirk_acer_travelmate_2490,
476 },
477 {
478 .callback = dmi_matched,
479 .ident = "Acer Aspire 5610",
480 .matches = {
481 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
482 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
483 },
484 .driver_data = &quirk_acer_travelmate_2490,
485 },
486 {
487 .callback = dmi_matched,
488 .ident = "Acer Aspire 5630",
489 .matches = {
490 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
491 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
492 },
493 .driver_data = &quirk_acer_travelmate_2490,
494 },
495 {
496 .callback = dmi_matched,
497 .ident = "Acer Aspire 5650",
498 .matches = {
499 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
500 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
501 },
502 .driver_data = &quirk_acer_travelmate_2490,
503 },
504 {
505 .callback = dmi_matched,
506 .ident = "Acer Aspire 5680",
507 .matches = {
508 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
509 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
510 },
511 .driver_data = &quirk_acer_travelmate_2490,
512 },
513 {
514 .callback = dmi_matched,
515 .ident = "Acer Aspire 9110",
516 .matches = {
517 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
518 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
519 },
520 .driver_data = &quirk_acer_travelmate_2490,
521 },
522 {
523 .callback = dmi_matched,
524 .ident = "Acer TravelMate 2490",
525 .matches = {
526 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
527 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
528 },
529 .driver_data = &quirk_acer_travelmate_2490,
530 },
531 {
532 .callback = dmi_matched,
533 .ident = "Acer TravelMate 4200",
534 .matches = {
535 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
536 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
537 },
538 .driver_data = &quirk_acer_travelmate_2490,
539 },
540 {
541 .callback = dmi_matched,
542 .ident = "Acer Predator PH315-53",
543 .matches = {
544 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
545 DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH315-53"),
546 },
547 .driver_data = &quirk_acer_predator_ph315_53,
548 },
549 {
550 .callback = set_force_caps,
551 .ident = "Acer Aspire Switch 10E SW3-016",
552 .matches = {
553 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
555 },
556 .driver_data = (void *)ACER_CAP_KBD_DOCK,
557 },
558 {
559 .callback = set_force_caps,
560 .ident = "Acer Aspire Switch 10 SW5-012",
561 .matches = {
562 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
564 },
565 .driver_data = (void *)ACER_CAP_KBD_DOCK,
566 },
567 {
568 .callback = set_force_caps,
569 .ident = "Acer Aspire Switch V 10 SW5-017",
570 .matches = {
571 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
572 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
573 },
574 .driver_data = (void *)ACER_CAP_KBD_DOCK,
575 },
576 {
577 .callback = set_force_caps,
578 .ident = "Acer One 10 (S1003)",
579 .matches = {
580 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
581 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
582 },
583 .driver_data = (void *)ACER_CAP_KBD_DOCK,
584 },
585 {}
586};
587
588/*
589 * This quirk list is for those non-acer machines that have AMW0_GUID1
590 * but supported by acer-wmi in past days. Keeping this quirk list here
591 * is only for backward compatible. Please do not add new machine to
592 * here anymore. Those non-acer machines should be supported by
593 * appropriate wmi drivers.
594 */
595static const struct dmi_system_id non_acer_quirks[] __initconst = {
596 {
597 .callback = dmi_matched,
598 .ident = "Fujitsu Siemens Amilo Li 1718",
599 .matches = {
600 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
601 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
602 },
603 .driver_data = &quirk_fujitsu_amilo_li_1718,
604 },
605 {
606 .callback = dmi_matched,
607 .ident = "Medion MD 98300",
608 .matches = {
609 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
610 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
611 },
612 .driver_data = &quirk_medion_md_98300,
613 },
614 {
615 .callback = dmi_matched,
616 .ident = "Lenovo Ideapad S205",
617 .matches = {
618 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
619 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
620 },
621 .driver_data = &quirk_lenovo_ideapad_s205,
622 },
623 {
624 .callback = dmi_matched,
625 .ident = "Lenovo Ideapad S205 (Brazos)",
626 .matches = {
627 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
628 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
629 },
630 .driver_data = &quirk_lenovo_ideapad_s205,
631 },
632 {
633 .callback = dmi_matched,
634 .ident = "Lenovo 3000 N200",
635 .matches = {
636 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
637 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
638 },
639 .driver_data = &quirk_fujitsu_amilo_li_1718,
640 },
641 {
642 .callback = dmi_matched,
643 .ident = "Lenovo Ideapad S205-10382JG",
644 .matches = {
645 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
646 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
647 },
648 .driver_data = &quirk_lenovo_ideapad_s205,
649 },
650 {
651 .callback = dmi_matched,
652 .ident = "Lenovo Ideapad S205-1038DPG",
653 .matches = {
654 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
655 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
656 },
657 .driver_data = &quirk_lenovo_ideapad_s205,
658 },
659 {}
660};
661
662/* Find which quirks are needed for a particular vendor/ model pair */
663static void __init find_quirks(void)
664{
665 if (!force_series) {
666 dmi_check_system(acer_quirks);
667 dmi_check_system(non_acer_quirks);
668 } else if (force_series == 2490) {
669 quirks = &quirk_acer_travelmate_2490;
670 }
671
672 if (quirks == NULL)
673 quirks = &quirk_unknown;
674}
675
676/*
677 * General interface convenience methods
678 */
679
680static bool has_cap(u32 cap)
681{
682 return interface->capability & cap;
683}
684
685/*
686 * AMW0 (V1) interface
687 */
688struct wmab_args {
689 u32 eax;
690 u32 ebx;
691 u32 ecx;
692 u32 edx;
693};
694
695struct wmab_ret {
696 u32 eax;
697 u32 ebx;
698 u32 ecx;
699 u32 edx;
700 u32 eex;
701};
702
703static acpi_status wmab_execute(struct wmab_args *regbuf,
704struct acpi_buffer *result)
705{
706 struct acpi_buffer input;
707 acpi_status status;
708 input.length = sizeof(struct wmab_args);
709 input.pointer = (u8 *)regbuf;
710
711 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
712
713 return status;
714}
715
716static acpi_status AMW0_get_u32(u32 *value, u32 cap)
717{
718 int err;
719 u8 result;
720
721 switch (cap) {
722 case ACER_CAP_MAILLED:
723 switch (quirks->mailled) {
724 default:
725 err = ec_read(0xA, &result);
726 if (err)
727 return AE_ERROR;
728 *value = (result >> 7) & 0x1;
729 return AE_OK;
730 }
731 break;
732 case ACER_CAP_WIRELESS:
733 switch (quirks->wireless) {
734 case 1:
735 err = ec_read(0x7B, &result);
736 if (err)
737 return AE_ERROR;
738 *value = result & 0x1;
739 return AE_OK;
740 case 2:
741 err = ec_read(0x71, &result);
742 if (err)
743 return AE_ERROR;
744 *value = result & 0x1;
745 return AE_OK;
746 case 3:
747 err = ec_read(0x78, &result);
748 if (err)
749 return AE_ERROR;
750 *value = result & 0x1;
751 return AE_OK;
752 default:
753 err = ec_read(0xA, &result);
754 if (err)
755 return AE_ERROR;
756 *value = (result >> 2) & 0x1;
757 return AE_OK;
758 }
759 break;
760 case ACER_CAP_BLUETOOTH:
761 switch (quirks->bluetooth) {
762 default:
763 err = ec_read(0xA, &result);
764 if (err)
765 return AE_ERROR;
766 *value = (result >> 4) & 0x1;
767 return AE_OK;
768 }
769 break;
770 case ACER_CAP_BRIGHTNESS:
771 switch (quirks->brightness) {
772 default:
773 err = ec_read(0x83, &result);
774 if (err)
775 return AE_ERROR;
776 *value = result;
777 return AE_OK;
778 }
779 break;
780 default:
781 return AE_ERROR;
782 }
783 return AE_OK;
784}
785
786static acpi_status AMW0_set_u32(u32 value, u32 cap)
787{
788 struct wmab_args args;
789
790 args.eax = ACER_AMW0_WRITE;
791 args.ebx = value ? (1<<8) : 0;
792 args.ecx = args.edx = 0;
793
794 switch (cap) {
795 case ACER_CAP_MAILLED:
796 if (value > 1)
797 return AE_BAD_PARAMETER;
798 args.ebx |= ACER_AMW0_MAILLED_MASK;
799 break;
800 case ACER_CAP_WIRELESS:
801 if (value > 1)
802 return AE_BAD_PARAMETER;
803 args.ebx |= ACER_AMW0_WIRELESS_MASK;
804 break;
805 case ACER_CAP_BLUETOOTH:
806 if (value > 1)
807 return AE_BAD_PARAMETER;
808 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
809 break;
810 case ACER_CAP_BRIGHTNESS:
811 if (value > max_brightness)
812 return AE_BAD_PARAMETER;
813 switch (quirks->brightness) {
814 default:
815 return ec_write(0x83, value);
816 }
817 default:
818 return AE_ERROR;
819 }
820
821 /* Actually do the set */
822 return wmab_execute(&args, NULL);
823}
824
825static acpi_status __init AMW0_find_mailled(void)
826{
827 struct wmab_args args;
828 struct wmab_ret ret;
829 acpi_status status = AE_OK;
830 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
831 union acpi_object *obj;
832
833 args.eax = 0x86;
834 args.ebx = args.ecx = args.edx = 0;
835
836 status = wmab_execute(&args, &out);
837 if (ACPI_FAILURE(status))
838 return status;
839
840 obj = (union acpi_object *) out.pointer;
841 if (obj && obj->type == ACPI_TYPE_BUFFER &&
842 obj->buffer.length == sizeof(struct wmab_ret)) {
843 ret = *((struct wmab_ret *) obj->buffer.pointer);
844 } else {
845 kfree(out.pointer);
846 return AE_ERROR;
847 }
848
849 if (ret.eex & 0x1)
850 interface->capability |= ACER_CAP_MAILLED;
851
852 kfree(out.pointer);
853
854 return AE_OK;
855}
856
857static const struct acpi_device_id norfkill_ids[] __initconst = {
858 { "VPC2004", 0},
859 { "IBM0068", 0},
860 { "LEN0068", 0},
861 { "SNY5001", 0}, /* sony-laptop in charge */
862 { "HPQ6601", 0},
863 { "", 0},
864};
865
866static int __init AMW0_set_cap_acpi_check_device(void)
867{
868 const struct acpi_device_id *id;
869
870 for (id = norfkill_ids; id->id[0]; id++)
871 if (acpi_dev_found(id->id))
872 return true;
873
874 return false;
875}
876
877static acpi_status __init AMW0_set_capabilities(void)
878{
879 struct wmab_args args;
880 struct wmab_ret ret;
881 acpi_status status;
882 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
883 union acpi_object *obj;
884
885 /*
886 * On laptops with this strange GUID (non Acer), normal probing doesn't
887 * work.
888 */
889 if (wmi_has_guid(AMW0_GUID2)) {
890 if ((quirks != &quirk_unknown) ||
891 !AMW0_set_cap_acpi_check_device())
892 interface->capability |= ACER_CAP_WIRELESS;
893 return AE_OK;
894 }
895
896 args.eax = ACER_AMW0_WRITE;
897 args.ecx = args.edx = 0;
898
899 args.ebx = 0xa2 << 8;
900 args.ebx |= ACER_AMW0_WIRELESS_MASK;
901
902 status = wmab_execute(&args, &out);
903 if (ACPI_FAILURE(status))
904 return status;
905
906 obj = out.pointer;
907 if (obj && obj->type == ACPI_TYPE_BUFFER &&
908 obj->buffer.length == sizeof(struct wmab_ret)) {
909 ret = *((struct wmab_ret *) obj->buffer.pointer);
910 } else {
911 status = AE_ERROR;
912 goto out;
913 }
914
915 if (ret.eax & 0x1)
916 interface->capability |= ACER_CAP_WIRELESS;
917
918 args.ebx = 2 << 8;
919 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
920
921 /*
922 * It's ok to use existing buffer for next wmab_execute call.
923 * But we need to kfree(out.pointer) if next wmab_execute fail.
924 */
925 status = wmab_execute(&args, &out);
926 if (ACPI_FAILURE(status))
927 goto out;
928
929 obj = (union acpi_object *) out.pointer;
930 if (obj && obj->type == ACPI_TYPE_BUFFER
931 && obj->buffer.length == sizeof(struct wmab_ret)) {
932 ret = *((struct wmab_ret *) obj->buffer.pointer);
933 } else {
934 status = AE_ERROR;
935 goto out;
936 }
937
938 if (ret.eax & 0x1)
939 interface->capability |= ACER_CAP_BLUETOOTH;
940
941 /*
942 * This appears to be safe to enable, since all Wistron based laptops
943 * appear to use the same EC register for brightness, even if they
944 * differ for wireless, etc
945 */
946 if (quirks->brightness >= 0)
947 interface->capability |= ACER_CAP_BRIGHTNESS;
948
949 status = AE_OK;
950out:
951 kfree(out.pointer);
952 return status;
953}
954
955static struct wmi_interface AMW0_interface = {
956 .type = ACER_AMW0,
957};
958
959static struct wmi_interface AMW0_V2_interface = {
960 .type = ACER_AMW0_V2,
961};
962
963/*
964 * New interface (The WMID interface)
965 */
966static acpi_status
967WMI_execute_u32(u32 method_id, u32 in, u32 *out)
968{
969 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
970 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
971 union acpi_object *obj;
972 u32 tmp = 0;
973 acpi_status status;
974
975 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
976
977 if (ACPI_FAILURE(status))
978 return status;
979
980 obj = (union acpi_object *) result.pointer;
981 if (obj) {
982 if (obj->type == ACPI_TYPE_BUFFER &&
983 (obj->buffer.length == sizeof(u32) ||
984 obj->buffer.length == sizeof(u64))) {
985 tmp = *((u32 *) obj->buffer.pointer);
986 } else if (obj->type == ACPI_TYPE_INTEGER) {
987 tmp = (u32) obj->integer.value;
988 }
989 }
990
991 if (out)
992 *out = tmp;
993
994 kfree(result.pointer);
995
996 return status;
997}
998
999static acpi_status WMID_get_u32(u32 *value, u32 cap)
1000{
1001 acpi_status status;
1002 u8 tmp;
1003 u32 result, method_id = 0;
1004
1005 switch (cap) {
1006 case ACER_CAP_WIRELESS:
1007 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1008 break;
1009 case ACER_CAP_BLUETOOTH:
1010 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1011 break;
1012 case ACER_CAP_BRIGHTNESS:
1013 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1014 break;
1015 case ACER_CAP_THREEG:
1016 method_id = ACER_WMID_GET_THREEG_METHODID;
1017 break;
1018 case ACER_CAP_MAILLED:
1019 if (quirks->mailled == 1) {
1020 ec_read(0x9f, &tmp);
1021 *value = tmp & 0x1;
1022 return 0;
1023 }
1024 fallthrough;
1025 default:
1026 return AE_ERROR;
1027 }
1028 status = WMI_execute_u32(method_id, 0, &result);
1029
1030 if (ACPI_SUCCESS(status))
1031 *value = (u8)result;
1032
1033 return status;
1034}
1035
1036static acpi_status WMID_set_u32(u32 value, u32 cap)
1037{
1038 u32 method_id = 0;
1039 char param;
1040
1041 switch (cap) {
1042 case ACER_CAP_BRIGHTNESS:
1043 if (value > max_brightness)
1044 return AE_BAD_PARAMETER;
1045 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1046 break;
1047 case ACER_CAP_WIRELESS:
1048 if (value > 1)
1049 return AE_BAD_PARAMETER;
1050 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1051 break;
1052 case ACER_CAP_BLUETOOTH:
1053 if (value > 1)
1054 return AE_BAD_PARAMETER;
1055 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1056 break;
1057 case ACER_CAP_THREEG:
1058 if (value > 1)
1059 return AE_BAD_PARAMETER;
1060 method_id = ACER_WMID_SET_THREEG_METHODID;
1061 break;
1062 case ACER_CAP_MAILLED:
1063 if (value > 1)
1064 return AE_BAD_PARAMETER;
1065 if (quirks->mailled == 1) {
1066 param = value ? 0x92 : 0x93;
1067 i8042_lock_chip();
1068 i8042_command(¶m, 0x1059);
1069 i8042_unlock_chip();
1070 return 0;
1071 }
1072 break;
1073 default:
1074 return AE_ERROR;
1075 }
1076 return WMI_execute_u32(method_id, (u32)value, NULL);
1077}
1078
1079static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1080{
1081 struct wmid3_gds_return_value return_value;
1082 acpi_status status;
1083 union acpi_object *obj;
1084 struct wmid3_gds_get_input_param params = {
1085 .function_num = 0x1,
1086 .hotkey_number = commun_fn_key_number,
1087 .devices = device,
1088 };
1089 struct acpi_buffer input = {
1090 sizeof(struct wmid3_gds_get_input_param),
1091 ¶ms
1092 };
1093 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1094
1095 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1096 if (ACPI_FAILURE(status))
1097 return status;
1098
1099 obj = output.pointer;
1100
1101 if (!obj)
1102 return AE_ERROR;
1103 else if (obj->type != ACPI_TYPE_BUFFER) {
1104 kfree(obj);
1105 return AE_ERROR;
1106 }
1107 if (obj->buffer.length != 8) {
1108 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1109 kfree(obj);
1110 return AE_ERROR;
1111 }
1112
1113 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1114 kfree(obj);
1115
1116 if (return_value.error_code || return_value.ec_return_value)
1117 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1118 device,
1119 return_value.error_code,
1120 return_value.ec_return_value);
1121 else
1122 *value = !!(return_value.devices & device);
1123
1124 return status;
1125}
1126
1127static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1128{
1129 u16 device;
1130
1131 switch (cap) {
1132 case ACER_CAP_WIRELESS:
1133 device = ACER_WMID3_GDS_WIRELESS;
1134 break;
1135 case ACER_CAP_BLUETOOTH:
1136 device = ACER_WMID3_GDS_BLUETOOTH;
1137 break;
1138 case ACER_CAP_THREEG:
1139 device = ACER_WMID3_GDS_THREEG;
1140 break;
1141 default:
1142 return AE_ERROR;
1143 }
1144 return wmid3_get_device_status(value, device);
1145}
1146
1147static acpi_status wmid3_set_device_status(u32 value, u16 device)
1148{
1149 struct wmid3_gds_return_value return_value;
1150 acpi_status status;
1151 union acpi_object *obj;
1152 u16 devices;
1153 struct wmid3_gds_get_input_param get_params = {
1154 .function_num = 0x1,
1155 .hotkey_number = commun_fn_key_number,
1156 .devices = commun_func_bitmap,
1157 };
1158 struct acpi_buffer get_input = {
1159 sizeof(struct wmid3_gds_get_input_param),
1160 &get_params
1161 };
1162 struct wmid3_gds_set_input_param set_params = {
1163 .function_num = 0x2,
1164 .hotkey_number = commun_fn_key_number,
1165 .devices = commun_func_bitmap,
1166 };
1167 struct acpi_buffer set_input = {
1168 sizeof(struct wmid3_gds_set_input_param),
1169 &set_params
1170 };
1171 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1172 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1173
1174 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1175 if (ACPI_FAILURE(status))
1176 return status;
1177
1178 obj = output.pointer;
1179
1180 if (!obj)
1181 return AE_ERROR;
1182 else if (obj->type != ACPI_TYPE_BUFFER) {
1183 kfree(obj);
1184 return AE_ERROR;
1185 }
1186 if (obj->buffer.length != 8) {
1187 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1188 kfree(obj);
1189 return AE_ERROR;
1190 }
1191
1192 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1193 kfree(obj);
1194
1195 if (return_value.error_code || return_value.ec_return_value) {
1196 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1197 return_value.error_code,
1198 return_value.ec_return_value);
1199 return status;
1200 }
1201
1202 devices = return_value.devices;
1203 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1204
1205 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1206 if (ACPI_FAILURE(status))
1207 return status;
1208
1209 obj = output2.pointer;
1210
1211 if (!obj)
1212 return AE_ERROR;
1213 else if (obj->type != ACPI_TYPE_BUFFER) {
1214 kfree(obj);
1215 return AE_ERROR;
1216 }
1217 if (obj->buffer.length != 4) {
1218 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1219 kfree(obj);
1220 return AE_ERROR;
1221 }
1222
1223 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1224 kfree(obj);
1225
1226 if (return_value.error_code || return_value.ec_return_value)
1227 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1228 return_value.error_code,
1229 return_value.ec_return_value);
1230
1231 return status;
1232}
1233
1234static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1235{
1236 u16 device;
1237
1238 switch (cap) {
1239 case ACER_CAP_WIRELESS:
1240 device = ACER_WMID3_GDS_WIRELESS;
1241 break;
1242 case ACER_CAP_BLUETOOTH:
1243 device = ACER_WMID3_GDS_BLUETOOTH;
1244 break;
1245 case ACER_CAP_THREEG:
1246 device = ACER_WMID3_GDS_THREEG;
1247 break;
1248 default:
1249 return AE_ERROR;
1250 }
1251 return wmid3_set_device_status(value, device);
1252}
1253
1254static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1255{
1256 struct hotkey_function_type_aa *type_aa;
1257
1258 /* We are looking for OEM-specific Type AAh */
1259 if (header->type != 0xAA)
1260 return;
1261
1262 has_type_aa = true;
1263 type_aa = (struct hotkey_function_type_aa *) header;
1264
1265 pr_info("Function bitmap for Communication Button: 0x%x\n",
1266 type_aa->commun_func_bitmap);
1267 commun_func_bitmap = type_aa->commun_func_bitmap;
1268
1269 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1270 interface->capability |= ACER_CAP_WIRELESS;
1271 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1272 interface->capability |= ACER_CAP_THREEG;
1273 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1274 interface->capability |= ACER_CAP_BLUETOOTH;
1275 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1276 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1277
1278 commun_fn_key_number = type_aa->commun_fn_key_number;
1279}
1280
1281static acpi_status __init WMID_set_capabilities(void)
1282{
1283 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1284 union acpi_object *obj;
1285 acpi_status status;
1286 u32 devices;
1287
1288 status = wmi_query_block(WMID_GUID2, 0, &out);
1289 if (ACPI_FAILURE(status))
1290 return status;
1291
1292 obj = (union acpi_object *) out.pointer;
1293 if (obj) {
1294 if (obj->type == ACPI_TYPE_BUFFER &&
1295 (obj->buffer.length == sizeof(u32) ||
1296 obj->buffer.length == sizeof(u64))) {
1297 devices = *((u32 *) obj->buffer.pointer);
1298 } else if (obj->type == ACPI_TYPE_INTEGER) {
1299 devices = (u32) obj->integer.value;
1300 } else {
1301 kfree(out.pointer);
1302 return AE_ERROR;
1303 }
1304 } else {
1305 kfree(out.pointer);
1306 return AE_ERROR;
1307 }
1308
1309 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1310 if (devices & 0x07)
1311 interface->capability |= ACER_CAP_WIRELESS;
1312 if (devices & 0x40)
1313 interface->capability |= ACER_CAP_THREEG;
1314 if (devices & 0x10)
1315 interface->capability |= ACER_CAP_BLUETOOTH;
1316
1317 if (!(devices & 0x20))
1318 max_brightness = 0x9;
1319
1320 kfree(out.pointer);
1321 return status;
1322}
1323
1324static struct wmi_interface wmid_interface = {
1325 .type = ACER_WMID,
1326};
1327
1328static struct wmi_interface wmid_v2_interface = {
1329 .type = ACER_WMID_v2,
1330};
1331
1332/*
1333 * WMID Gaming interface
1334 */
1335
1336static acpi_status
1337WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
1338{
1339 struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
1340 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1341 union acpi_object *obj;
1342 u32 tmp = 0;
1343 acpi_status status;
1344
1345 status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
1346
1347 if (ACPI_FAILURE(status))
1348 return status;
1349 obj = (union acpi_object *) result.pointer;
1350
1351 if (obj) {
1352 if (obj->type == ACPI_TYPE_BUFFER) {
1353 if (obj->buffer.length == sizeof(u32))
1354 tmp = *((u32 *) obj->buffer.pointer);
1355 else if (obj->buffer.length == sizeof(u64))
1356 tmp = *((u64 *) obj->buffer.pointer);
1357 } else if (obj->type == ACPI_TYPE_INTEGER) {
1358 tmp = (u64) obj->integer.value;
1359 }
1360 }
1361
1362 if (out)
1363 *out = tmp;
1364
1365 kfree(result.pointer);
1366
1367 return status;
1368}
1369
1370static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
1371{
1372 u32 method_id = 0;
1373
1374 if (!(interface->capability & cap))
1375 return AE_BAD_PARAMETER;
1376
1377 switch (cap) {
1378 case ACER_CAP_TURBO_LED:
1379 method_id = ACER_WMID_SET_GAMING_LED_METHODID;
1380 break;
1381 case ACER_CAP_TURBO_FAN:
1382 method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
1383 break;
1384 case ACER_CAP_TURBO_OC:
1385 method_id = ACER_WMID_SET_GAMING_MISC_SETTING_METHODID;
1386 break;
1387 default:
1388 return AE_BAD_PARAMETER;
1389 }
1390
1391 return WMI_gaming_execute_u64(method_id, value, NULL);
1392}
1393
1394static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap)
1395{
1396 acpi_status status;
1397 u64 result;
1398 u64 input;
1399 u32 method_id;
1400
1401 if (!(interface->capability & cap))
1402 return AE_BAD_PARAMETER;
1403
1404 switch (cap) {
1405 case ACER_CAP_TURBO_LED:
1406 method_id = ACER_WMID_GET_GAMING_LED_METHODID;
1407 input = 0x1;
1408 break;
1409 default:
1410 return AE_BAD_PARAMETER;
1411 }
1412 status = WMI_gaming_execute_u64(method_id, input, &result);
1413 if (ACPI_SUCCESS(status))
1414 *value = (u64) result;
1415
1416 return status;
1417}
1418
1419static void WMID_gaming_set_fan_mode(u8 fan_mode)
1420{
1421 /* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
1422 u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
1423 int i;
1424
1425 if (quirks->cpu_fans > 0)
1426 gpu_fan_config2 |= 1;
1427 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1428 gpu_fan_config2 |= 1 << (i + 1);
1429 for (i = 0; i < quirks->gpu_fans; ++i)
1430 gpu_fan_config2 |= 1 << (i + 3);
1431 if (quirks->cpu_fans > 0)
1432 gpu_fan_config1 |= fan_mode;
1433 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1434 gpu_fan_config1 |= fan_mode << (2 * i + 2);
1435 for (i = 0; i < quirks->gpu_fans; ++i)
1436 gpu_fan_config1 |= fan_mode << (2 * i + 6);
1437 WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
1438}
1439
1440/*
1441 * Generic Device (interface-independent)
1442 */
1443
1444static acpi_status get_u32(u32 *value, u32 cap)
1445{
1446 acpi_status status = AE_ERROR;
1447
1448 switch (interface->type) {
1449 case ACER_AMW0:
1450 status = AMW0_get_u32(value, cap);
1451 break;
1452 case ACER_AMW0_V2:
1453 if (cap == ACER_CAP_MAILLED) {
1454 status = AMW0_get_u32(value, cap);
1455 break;
1456 }
1457 fallthrough;
1458 case ACER_WMID:
1459 status = WMID_get_u32(value, cap);
1460 break;
1461 case ACER_WMID_v2:
1462 if (cap & (ACER_CAP_WIRELESS |
1463 ACER_CAP_BLUETOOTH |
1464 ACER_CAP_THREEG))
1465 status = wmid_v2_get_u32(value, cap);
1466 else if (wmi_has_guid(WMID_GUID2))
1467 status = WMID_get_u32(value, cap);
1468 break;
1469 }
1470
1471 return status;
1472}
1473
1474static acpi_status set_u32(u32 value, u32 cap)
1475{
1476 acpi_status status;
1477
1478 if (interface->capability & cap) {
1479 switch (interface->type) {
1480 case ACER_AMW0:
1481 return AMW0_set_u32(value, cap);
1482 case ACER_AMW0_V2:
1483 if (cap == ACER_CAP_MAILLED)
1484 return AMW0_set_u32(value, cap);
1485
1486 /*
1487 * On some models, some WMID methods don't toggle
1488 * properly. For those cases, we want to run the AMW0
1489 * method afterwards to be certain we've really toggled
1490 * the device state.
1491 */
1492 if (cap == ACER_CAP_WIRELESS ||
1493 cap == ACER_CAP_BLUETOOTH) {
1494 status = WMID_set_u32(value, cap);
1495 if (ACPI_FAILURE(status))
1496 return status;
1497
1498 return AMW0_set_u32(value, cap);
1499 }
1500 fallthrough;
1501 case ACER_WMID:
1502 return WMID_set_u32(value, cap);
1503 case ACER_WMID_v2:
1504 if (cap & (ACER_CAP_WIRELESS |
1505 ACER_CAP_BLUETOOTH |
1506 ACER_CAP_THREEG))
1507 return wmid_v2_set_u32(value, cap);
1508 else if (wmi_has_guid(WMID_GUID2))
1509 return WMID_set_u32(value, cap);
1510 fallthrough;
1511 default:
1512 return AE_BAD_PARAMETER;
1513 }
1514 }
1515 return AE_BAD_PARAMETER;
1516}
1517
1518static void __init acer_commandline_init(void)
1519{
1520 /*
1521 * These will all fail silently if the value given is invalid, or the
1522 * capability isn't available on the given interface
1523 */
1524 if (mailled >= 0)
1525 set_u32(mailled, ACER_CAP_MAILLED);
1526 if (!has_type_aa && threeg >= 0)
1527 set_u32(threeg, ACER_CAP_THREEG);
1528 if (brightness >= 0)
1529 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1530}
1531
1532/*
1533 * LED device (Mail LED only, no other LEDs known yet)
1534 */
1535static void mail_led_set(struct led_classdev *led_cdev,
1536enum led_brightness value)
1537{
1538 set_u32(value, ACER_CAP_MAILLED);
1539}
1540
1541static struct led_classdev mail_led = {
1542 .name = "acer-wmi::mail",
1543 .brightness_set = mail_led_set,
1544};
1545
1546static int acer_led_init(struct device *dev)
1547{
1548 return led_classdev_register(dev, &mail_led);
1549}
1550
1551static void acer_led_exit(void)
1552{
1553 set_u32(LED_OFF, ACER_CAP_MAILLED);
1554 led_classdev_unregister(&mail_led);
1555}
1556
1557/*
1558 * Backlight device
1559 */
1560static struct backlight_device *acer_backlight_device;
1561
1562static int read_brightness(struct backlight_device *bd)
1563{
1564 u32 value;
1565 get_u32(&value, ACER_CAP_BRIGHTNESS);
1566 return value;
1567}
1568
1569static int update_bl_status(struct backlight_device *bd)
1570{
1571 int intensity = backlight_get_brightness(bd);
1572
1573 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1574
1575 return 0;
1576}
1577
1578static const struct backlight_ops acer_bl_ops = {
1579 .get_brightness = read_brightness,
1580 .update_status = update_bl_status,
1581};
1582
1583static int acer_backlight_init(struct device *dev)
1584{
1585 struct backlight_properties props;
1586 struct backlight_device *bd;
1587
1588 memset(&props, 0, sizeof(struct backlight_properties));
1589 props.type = BACKLIGHT_PLATFORM;
1590 props.max_brightness = max_brightness;
1591 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1592 &props);
1593 if (IS_ERR(bd)) {
1594 pr_err("Could not register Acer backlight device\n");
1595 acer_backlight_device = NULL;
1596 return PTR_ERR(bd);
1597 }
1598
1599 acer_backlight_device = bd;
1600
1601 bd->props.power = FB_BLANK_UNBLANK;
1602 bd->props.brightness = read_brightness(bd);
1603 backlight_update_status(bd);
1604 return 0;
1605}
1606
1607static void acer_backlight_exit(void)
1608{
1609 backlight_device_unregister(acer_backlight_device);
1610}
1611
1612/*
1613 * Accelerometer device
1614 */
1615static acpi_handle gsensor_handle;
1616
1617static int acer_gsensor_init(void)
1618{
1619 acpi_status status;
1620 struct acpi_buffer output;
1621 union acpi_object out_obj;
1622
1623 output.length = sizeof(out_obj);
1624 output.pointer = &out_obj;
1625 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1626 if (ACPI_FAILURE(status))
1627 return -1;
1628
1629 return 0;
1630}
1631
1632static int acer_gsensor_open(struct input_dev *input)
1633{
1634 return acer_gsensor_init();
1635}
1636
1637static int acer_gsensor_event(void)
1638{
1639 acpi_status status;
1640 struct acpi_buffer output;
1641 union acpi_object out_obj[5];
1642
1643 if (!acer_wmi_accel_dev)
1644 return -1;
1645
1646 output.length = sizeof(out_obj);
1647 output.pointer = out_obj;
1648
1649 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1650 if (ACPI_FAILURE(status))
1651 return -1;
1652
1653 if (out_obj->package.count != 4)
1654 return -1;
1655
1656 input_report_abs(acer_wmi_accel_dev, ABS_X,
1657 (s16)out_obj->package.elements[0].integer.value);
1658 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1659 (s16)out_obj->package.elements[1].integer.value);
1660 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1661 (s16)out_obj->package.elements[2].integer.value);
1662 input_sync(acer_wmi_accel_dev);
1663 return 0;
1664}
1665
1666/*
1667 * Predator series turbo button
1668 */
1669static int acer_toggle_turbo(void)
1670{
1671 u64 turbo_led_state;
1672
1673 /* Get current state from turbo button */
1674 if (ACPI_FAILURE(WMID_gaming_get_u64(&turbo_led_state, ACER_CAP_TURBO_LED)))
1675 return -1;
1676
1677 if (turbo_led_state) {
1678 /* Turn off turbo led */
1679 WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
1680
1681 /* Set FAN mode to auto */
1682 WMID_gaming_set_fan_mode(0x1);
1683
1684 /* Set OC to normal */
1685 WMID_gaming_set_u64(0x5, ACER_CAP_TURBO_OC);
1686 WMID_gaming_set_u64(0x7, ACER_CAP_TURBO_OC);
1687 } else {
1688 /* Turn on turbo led */
1689 WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
1690
1691 /* Set FAN mode to turbo */
1692 WMID_gaming_set_fan_mode(0x2);
1693
1694 /* Set OC to turbo mode */
1695 WMID_gaming_set_u64(0x205, ACER_CAP_TURBO_OC);
1696 WMID_gaming_set_u64(0x207, ACER_CAP_TURBO_OC);
1697 }
1698 return turbo_led_state;
1699}
1700
1701/*
1702 * Switch series keyboard dock status
1703 */
1704static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1705{
1706 switch (kbd_dock_state) {
1707 case 0x01: /* Docked, traditional clamshell laptop mode */
1708 return 0;
1709 case 0x04: /* Stand-alone tablet */
1710 case 0x40: /* Docked, tent mode, keyboard not usable */
1711 return 1;
1712 default:
1713 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1714 }
1715
1716 return 0;
1717}
1718
1719static void acer_kbd_dock_get_initial_state(void)
1720{
1721 u8 *output, input[8] = { 0x05, 0x00, };
1722 struct acpi_buffer input_buf = { sizeof(input), input };
1723 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1724 union acpi_object *obj;
1725 acpi_status status;
1726 int sw_tablet_mode;
1727
1728 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1729 if (ACPI_FAILURE(status)) {
1730 pr_err("Error getting keyboard-dock initial status: %s\n",
1731 acpi_format_exception(status));
1732 return;
1733 }
1734
1735 obj = output_buf.pointer;
1736 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1737 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1738 goto out_free_obj;
1739 }
1740
1741 output = obj->buffer.pointer;
1742 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1743 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1744 output[0], output[3]);
1745 goto out_free_obj;
1746 }
1747
1748 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1749 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1750
1751out_free_obj:
1752 kfree(obj);
1753}
1754
1755static void acer_kbd_dock_event(const struct event_return_value *event)
1756{
1757 int sw_tablet_mode;
1758
1759 if (!has_cap(ACER_CAP_KBD_DOCK))
1760 return;
1761
1762 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1763 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1764 input_sync(acer_wmi_input_dev);
1765}
1766
1767/*
1768 * Rfkill devices
1769 */
1770static void acer_rfkill_update(struct work_struct *ignored);
1771static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1772static void acer_rfkill_update(struct work_struct *ignored)
1773{
1774 u32 state;
1775 acpi_status status;
1776
1777 if (has_cap(ACER_CAP_WIRELESS)) {
1778 status = get_u32(&state, ACER_CAP_WIRELESS);
1779 if (ACPI_SUCCESS(status)) {
1780 if (quirks->wireless == 3)
1781 rfkill_set_hw_state(wireless_rfkill, !state);
1782 else
1783 rfkill_set_sw_state(wireless_rfkill, !state);
1784 }
1785 }
1786
1787 if (has_cap(ACER_CAP_BLUETOOTH)) {
1788 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1789 if (ACPI_SUCCESS(status))
1790 rfkill_set_sw_state(bluetooth_rfkill, !state);
1791 }
1792
1793 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1794 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1795 if (ACPI_SUCCESS(status))
1796 rfkill_set_sw_state(threeg_rfkill, !state);
1797 }
1798
1799 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1800}
1801
1802static int acer_rfkill_set(void *data, bool blocked)
1803{
1804 acpi_status status;
1805 u32 cap = (unsigned long)data;
1806
1807 if (rfkill_inited) {
1808 status = set_u32(!blocked, cap);
1809 if (ACPI_FAILURE(status))
1810 return -ENODEV;
1811 }
1812
1813 return 0;
1814}
1815
1816static const struct rfkill_ops acer_rfkill_ops = {
1817 .set_block = acer_rfkill_set,
1818};
1819
1820static struct rfkill *acer_rfkill_register(struct device *dev,
1821 enum rfkill_type type,
1822 char *name, u32 cap)
1823{
1824 int err;
1825 struct rfkill *rfkill_dev;
1826 u32 state;
1827 acpi_status status;
1828
1829 rfkill_dev = rfkill_alloc(name, dev, type,
1830 &acer_rfkill_ops,
1831 (void *)(unsigned long)cap);
1832 if (!rfkill_dev)
1833 return ERR_PTR(-ENOMEM);
1834
1835 status = get_u32(&state, cap);
1836
1837 err = rfkill_register(rfkill_dev);
1838 if (err) {
1839 rfkill_destroy(rfkill_dev);
1840 return ERR_PTR(err);
1841 }
1842
1843 if (ACPI_SUCCESS(status))
1844 rfkill_set_sw_state(rfkill_dev, !state);
1845
1846 return rfkill_dev;
1847}
1848
1849static int acer_rfkill_init(struct device *dev)
1850{
1851 int err;
1852
1853 if (has_cap(ACER_CAP_WIRELESS)) {
1854 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1855 "acer-wireless", ACER_CAP_WIRELESS);
1856 if (IS_ERR(wireless_rfkill)) {
1857 err = PTR_ERR(wireless_rfkill);
1858 goto error_wireless;
1859 }
1860 }
1861
1862 if (has_cap(ACER_CAP_BLUETOOTH)) {
1863 bluetooth_rfkill = acer_rfkill_register(dev,
1864 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1865 ACER_CAP_BLUETOOTH);
1866 if (IS_ERR(bluetooth_rfkill)) {
1867 err = PTR_ERR(bluetooth_rfkill);
1868 goto error_bluetooth;
1869 }
1870 }
1871
1872 if (has_cap(ACER_CAP_THREEG)) {
1873 threeg_rfkill = acer_rfkill_register(dev,
1874 RFKILL_TYPE_WWAN, "acer-threeg",
1875 ACER_CAP_THREEG);
1876 if (IS_ERR(threeg_rfkill)) {
1877 err = PTR_ERR(threeg_rfkill);
1878 goto error_threeg;
1879 }
1880 }
1881
1882 rfkill_inited = true;
1883
1884 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1885 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1886 schedule_delayed_work(&acer_rfkill_work,
1887 round_jiffies_relative(HZ));
1888
1889 return 0;
1890
1891error_threeg:
1892 if (has_cap(ACER_CAP_BLUETOOTH)) {
1893 rfkill_unregister(bluetooth_rfkill);
1894 rfkill_destroy(bluetooth_rfkill);
1895 }
1896error_bluetooth:
1897 if (has_cap(ACER_CAP_WIRELESS)) {
1898 rfkill_unregister(wireless_rfkill);
1899 rfkill_destroy(wireless_rfkill);
1900 }
1901error_wireless:
1902 return err;
1903}
1904
1905static void acer_rfkill_exit(void)
1906{
1907 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1908 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1909 cancel_delayed_work_sync(&acer_rfkill_work);
1910
1911 if (has_cap(ACER_CAP_WIRELESS)) {
1912 rfkill_unregister(wireless_rfkill);
1913 rfkill_destroy(wireless_rfkill);
1914 }
1915
1916 if (has_cap(ACER_CAP_BLUETOOTH)) {
1917 rfkill_unregister(bluetooth_rfkill);
1918 rfkill_destroy(bluetooth_rfkill);
1919 }
1920
1921 if (has_cap(ACER_CAP_THREEG)) {
1922 rfkill_unregister(threeg_rfkill);
1923 rfkill_destroy(threeg_rfkill);
1924 }
1925 return;
1926}
1927
1928static void acer_wmi_notify(u32 value, void *context)
1929{
1930 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1931 union acpi_object *obj;
1932 struct event_return_value return_value;
1933 acpi_status status;
1934 u16 device_state;
1935 const struct key_entry *key;
1936 u32 scancode;
1937
1938 status = wmi_get_event_data(value, &response);
1939 if (status != AE_OK) {
1940 pr_warn("bad event status 0x%x\n", status);
1941 return;
1942 }
1943
1944 obj = (union acpi_object *)response.pointer;
1945
1946 if (!obj)
1947 return;
1948 if (obj->type != ACPI_TYPE_BUFFER) {
1949 pr_warn("Unknown response received %d\n", obj->type);
1950 kfree(obj);
1951 return;
1952 }
1953 if (obj->buffer.length != 8) {
1954 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1955 kfree(obj);
1956 return;
1957 }
1958
1959 return_value = *((struct event_return_value *)obj->buffer.pointer);
1960 kfree(obj);
1961
1962 switch (return_value.function) {
1963 case WMID_HOTKEY_EVENT:
1964 device_state = return_value.device_state;
1965 pr_debug("device state: 0x%x\n", device_state);
1966
1967 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1968 return_value.key_num);
1969 if (!key) {
1970 pr_warn("Unknown key number - 0x%x\n",
1971 return_value.key_num);
1972 } else {
1973 scancode = return_value.key_num;
1974 switch (key->keycode) {
1975 case KEY_WLAN:
1976 case KEY_BLUETOOTH:
1977 if (has_cap(ACER_CAP_WIRELESS))
1978 rfkill_set_sw_state(wireless_rfkill,
1979 !(device_state & ACER_WMID3_GDS_WIRELESS));
1980 if (has_cap(ACER_CAP_THREEG))
1981 rfkill_set_sw_state(threeg_rfkill,
1982 !(device_state & ACER_WMID3_GDS_THREEG));
1983 if (has_cap(ACER_CAP_BLUETOOTH))
1984 rfkill_set_sw_state(bluetooth_rfkill,
1985 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1986 break;
1987 case KEY_TOUCHPAD_TOGGLE:
1988 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1989 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1990 }
1991 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1992 }
1993 break;
1994 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1995 acer_gsensor_event();
1996 acer_kbd_dock_event(&return_value);
1997 break;
1998 case WMID_GAMING_TURBO_KEY_EVENT:
1999 if (return_value.key_num == 0x4)
2000 acer_toggle_turbo();
2001 break;
2002 default:
2003 pr_warn("Unknown function number - %d - %d\n",
2004 return_value.function, return_value.key_num);
2005 break;
2006 }
2007}
2008
2009static acpi_status __init
2010wmid3_set_function_mode(struct func_input_params *params,
2011 struct func_return_value *return_value)
2012{
2013 acpi_status status;
2014 union acpi_object *obj;
2015
2016 struct acpi_buffer input = { sizeof(struct func_input_params), params };
2017 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
2018
2019 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
2020 if (ACPI_FAILURE(status))
2021 return status;
2022
2023 obj = output.pointer;
2024
2025 if (!obj)
2026 return AE_ERROR;
2027 else if (obj->type != ACPI_TYPE_BUFFER) {
2028 kfree(obj);
2029 return AE_ERROR;
2030 }
2031 if (obj->buffer.length != 4) {
2032 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2033 kfree(obj);
2034 return AE_ERROR;
2035 }
2036
2037 *return_value = *((struct func_return_value *)obj->buffer.pointer);
2038 kfree(obj);
2039
2040 return status;
2041}
2042
2043static int __init acer_wmi_enable_ec_raw(void)
2044{
2045 struct func_return_value return_value;
2046 acpi_status status;
2047 struct func_input_params params = {
2048 .function_num = 0x1,
2049 .commun_devices = 0xFFFF,
2050 .devices = 0xFFFF,
2051 .app_status = 0x00, /* Launch Manager Deactive */
2052 .app_mask = 0x01,
2053 };
2054
2055 status = wmid3_set_function_mode(¶ms, &return_value);
2056
2057 if (return_value.error_code || return_value.ec_return_value)
2058 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
2059 return_value.error_code,
2060 return_value.ec_return_value);
2061 else
2062 pr_info("Enabled EC raw mode\n");
2063
2064 return status;
2065}
2066
2067static int __init acer_wmi_enable_lm(void)
2068{
2069 struct func_return_value return_value;
2070 acpi_status status;
2071 struct func_input_params params = {
2072 .function_num = 0x1,
2073 .commun_devices = 0xFFFF,
2074 .devices = 0xFFFF,
2075 .app_status = 0x01, /* Launch Manager Active */
2076 .app_mask = 0x01,
2077 };
2078
2079 status = wmid3_set_function_mode(¶ms, &return_value);
2080
2081 if (return_value.error_code || return_value.ec_return_value)
2082 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
2083 return_value.error_code,
2084 return_value.ec_return_value);
2085
2086 return status;
2087}
2088
2089static int __init acer_wmi_enable_rf_button(void)
2090{
2091 struct func_return_value return_value;
2092 acpi_status status;
2093 struct func_input_params params = {
2094 .function_num = 0x1,
2095 .commun_devices = 0xFFFF,
2096 .devices = 0xFFFF,
2097 .app_status = 0x10, /* RF Button Active */
2098 .app_mask = 0x10,
2099 };
2100
2101 status = wmid3_set_function_mode(¶ms, &return_value);
2102
2103 if (return_value.error_code || return_value.ec_return_value)
2104 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2105 return_value.error_code,
2106 return_value.ec_return_value);
2107
2108 return status;
2109}
2110
2111static int __init acer_wmi_accel_setup(void)
2112{
2113 struct acpi_device *adev;
2114 int err;
2115
2116 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2117 if (!adev)
2118 return -ENODEV;
2119
2120 gsensor_handle = acpi_device_handle(adev);
2121 acpi_dev_put(adev);
2122
2123 acer_wmi_accel_dev = input_allocate_device();
2124 if (!acer_wmi_accel_dev)
2125 return -ENOMEM;
2126
2127 acer_wmi_accel_dev->open = acer_gsensor_open;
2128
2129 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2130 acer_wmi_accel_dev->phys = "wmi/input1";
2131 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2132 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2133 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2134 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2135 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2136
2137 err = input_register_device(acer_wmi_accel_dev);
2138 if (err)
2139 goto err_free_dev;
2140
2141 return 0;
2142
2143err_free_dev:
2144 input_free_device(acer_wmi_accel_dev);
2145 return err;
2146}
2147
2148static int __init acer_wmi_input_setup(void)
2149{
2150 acpi_status status;
2151 int err;
2152
2153 acer_wmi_input_dev = input_allocate_device();
2154 if (!acer_wmi_input_dev)
2155 return -ENOMEM;
2156
2157 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2158 acer_wmi_input_dev->phys = "wmi/input0";
2159 acer_wmi_input_dev->id.bustype = BUS_HOST;
2160
2161 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2162 if (err)
2163 goto err_free_dev;
2164
2165 if (has_cap(ACER_CAP_KBD_DOCK))
2166 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2167
2168 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2169 acer_wmi_notify, NULL);
2170 if (ACPI_FAILURE(status)) {
2171 err = -EIO;
2172 goto err_free_dev;
2173 }
2174
2175 if (has_cap(ACER_CAP_KBD_DOCK))
2176 acer_kbd_dock_get_initial_state();
2177
2178 err = input_register_device(acer_wmi_input_dev);
2179 if (err)
2180 goto err_uninstall_notifier;
2181
2182 return 0;
2183
2184err_uninstall_notifier:
2185 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2186err_free_dev:
2187 input_free_device(acer_wmi_input_dev);
2188 return err;
2189}
2190
2191static void acer_wmi_input_destroy(void)
2192{
2193 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2194 input_unregister_device(acer_wmi_input_dev);
2195}
2196
2197/*
2198 * debugfs functions
2199 */
2200static u32 get_wmid_devices(void)
2201{
2202 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2203 union acpi_object *obj;
2204 acpi_status status;
2205 u32 devices = 0;
2206
2207 status = wmi_query_block(WMID_GUID2, 0, &out);
2208 if (ACPI_FAILURE(status))
2209 return 0;
2210
2211 obj = (union acpi_object *) out.pointer;
2212 if (obj) {
2213 if (obj->type == ACPI_TYPE_BUFFER &&
2214 (obj->buffer.length == sizeof(u32) ||
2215 obj->buffer.length == sizeof(u64))) {
2216 devices = *((u32 *) obj->buffer.pointer);
2217 } else if (obj->type == ACPI_TYPE_INTEGER) {
2218 devices = (u32) obj->integer.value;
2219 }
2220 }
2221
2222 kfree(out.pointer);
2223 return devices;
2224}
2225
2226/*
2227 * Platform device
2228 */
2229static int acer_platform_probe(struct platform_device *device)
2230{
2231 int err;
2232
2233 if (has_cap(ACER_CAP_MAILLED)) {
2234 err = acer_led_init(&device->dev);
2235 if (err)
2236 goto error_mailled;
2237 }
2238
2239 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2240 err = acer_backlight_init(&device->dev);
2241 if (err)
2242 goto error_brightness;
2243 }
2244
2245 err = acer_rfkill_init(&device->dev);
2246 if (err)
2247 goto error_rfkill;
2248
2249 return err;
2250
2251error_rfkill:
2252 if (has_cap(ACER_CAP_BRIGHTNESS))
2253 acer_backlight_exit();
2254error_brightness:
2255 if (has_cap(ACER_CAP_MAILLED))
2256 acer_led_exit();
2257error_mailled:
2258 return err;
2259}
2260
2261static int acer_platform_remove(struct platform_device *device)
2262{
2263 if (has_cap(ACER_CAP_MAILLED))
2264 acer_led_exit();
2265 if (has_cap(ACER_CAP_BRIGHTNESS))
2266 acer_backlight_exit();
2267
2268 acer_rfkill_exit();
2269 return 0;
2270}
2271
2272#ifdef CONFIG_PM_SLEEP
2273static int acer_suspend(struct device *dev)
2274{
2275 u32 value;
2276 struct acer_data *data = &interface->data;
2277
2278 if (!data)
2279 return -ENOMEM;
2280
2281 if (has_cap(ACER_CAP_MAILLED)) {
2282 get_u32(&value, ACER_CAP_MAILLED);
2283 set_u32(LED_OFF, ACER_CAP_MAILLED);
2284 data->mailled = value;
2285 }
2286
2287 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2288 get_u32(&value, ACER_CAP_BRIGHTNESS);
2289 data->brightness = value;
2290 }
2291
2292 return 0;
2293}
2294
2295static int acer_resume(struct device *dev)
2296{
2297 struct acer_data *data = &interface->data;
2298
2299 if (!data)
2300 return -ENOMEM;
2301
2302 if (has_cap(ACER_CAP_MAILLED))
2303 set_u32(data->mailled, ACER_CAP_MAILLED);
2304
2305 if (has_cap(ACER_CAP_BRIGHTNESS))
2306 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2307
2308 if (acer_wmi_accel_dev)
2309 acer_gsensor_init();
2310
2311 return 0;
2312}
2313#else
2314#define acer_suspend NULL
2315#define acer_resume NULL
2316#endif
2317
2318static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2319
2320static void acer_platform_shutdown(struct platform_device *device)
2321{
2322 struct acer_data *data = &interface->data;
2323
2324 if (!data)
2325 return;
2326
2327 if (has_cap(ACER_CAP_MAILLED))
2328 set_u32(LED_OFF, ACER_CAP_MAILLED);
2329}
2330
2331static struct platform_driver acer_platform_driver = {
2332 .driver = {
2333 .name = "acer-wmi",
2334 .pm = &acer_pm,
2335 },
2336 .probe = acer_platform_probe,
2337 .remove = acer_platform_remove,
2338 .shutdown = acer_platform_shutdown,
2339};
2340
2341static struct platform_device *acer_platform_device;
2342
2343static void remove_debugfs(void)
2344{
2345 debugfs_remove_recursive(interface->debug.root);
2346}
2347
2348static void __init create_debugfs(void)
2349{
2350 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2351
2352 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2353 &interface->debug.wmid_devices);
2354}
2355
2356static int __init acer_wmi_init(void)
2357{
2358 int err;
2359
2360 pr_info("Acer Laptop ACPI-WMI Extras\n");
2361
2362 if (dmi_check_system(acer_blacklist)) {
2363 pr_info("Blacklisted hardware detected - not loading\n");
2364 return -ENODEV;
2365 }
2366
2367 find_quirks();
2368
2369 /*
2370 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2371 * machines like Lenovo, Fujitsu and Medion. In the past days,
2372 * acer-wmi driver handled those non-Acer machines by quirks list.
2373 * But actually acer-wmi driver was loaded on any machines that have
2374 * AMW0_GUID1. This behavior is strange because those machines should
2375 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2376 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2377 * should be in Acer/Gateway/Packard Bell white list, or it's already
2378 * in the past quirk list.
2379 */
2380 if (wmi_has_guid(AMW0_GUID1) &&
2381 !dmi_check_system(amw0_whitelist) &&
2382 quirks == &quirk_unknown) {
2383 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2384 return -ENODEV;
2385 }
2386
2387 /*
2388 * Detect which ACPI-WMI interface we're using.
2389 */
2390 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2391 interface = &AMW0_V2_interface;
2392
2393 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2394 interface = &wmid_interface;
2395
2396 if (wmi_has_guid(WMID_GUID3))
2397 interface = &wmid_v2_interface;
2398
2399 if (interface)
2400 dmi_walk(type_aa_dmi_decode, NULL);
2401
2402 if (wmi_has_guid(WMID_GUID2) && interface) {
2403 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2404 pr_err("Unable to detect available WMID devices\n");
2405 return -ENODEV;
2406 }
2407 /* WMID always provides brightness methods */
2408 interface->capability |= ACER_CAP_BRIGHTNESS;
2409 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2410 pr_err("No WMID device detection method found\n");
2411 return -ENODEV;
2412 }
2413
2414 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2415 interface = &AMW0_interface;
2416
2417 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2418 pr_err("Unable to detect available AMW0 devices\n");
2419 return -ENODEV;
2420 }
2421 }
2422
2423 if (wmi_has_guid(AMW0_GUID1))
2424 AMW0_find_mailled();
2425
2426 if (!interface) {
2427 pr_err("No or unsupported WMI interface, unable to load\n");
2428 return -ENODEV;
2429 }
2430
2431 set_quirks();
2432
2433 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2434 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2435
2436 if (wmi_has_guid(WMID_GUID3))
2437 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2438
2439 if (force_caps != -1)
2440 interface->capability = force_caps;
2441
2442 if (wmi_has_guid(WMID_GUID3) &&
2443 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2444 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2445 pr_warn("Cannot enable RF Button Driver\n");
2446
2447 if (ec_raw_mode) {
2448 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2449 pr_err("Cannot enable EC raw mode\n");
2450 return -ENODEV;
2451 }
2452 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2453 pr_err("Cannot enable Launch Manager mode\n");
2454 return -ENODEV;
2455 }
2456 } else if (ec_raw_mode) {
2457 pr_info("No WMID EC raw mode enable method\n");
2458 }
2459
2460 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2461 err = acer_wmi_input_setup();
2462 if (err)
2463 return err;
2464 err = acer_wmi_accel_setup();
2465 if (err && err != -ENODEV)
2466 pr_warn("Cannot enable accelerometer\n");
2467 }
2468
2469 err = platform_driver_register(&acer_platform_driver);
2470 if (err) {
2471 pr_err("Unable to register platform driver\n");
2472 goto error_platform_register;
2473 }
2474
2475 acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2476 if (!acer_platform_device) {
2477 err = -ENOMEM;
2478 goto error_device_alloc;
2479 }
2480
2481 err = platform_device_add(acer_platform_device);
2482 if (err)
2483 goto error_device_add;
2484
2485 if (wmi_has_guid(WMID_GUID2)) {
2486 interface->debug.wmid_devices = get_wmid_devices();
2487 create_debugfs();
2488 }
2489
2490 /* Override any initial settings with values from the commandline */
2491 acer_commandline_init();
2492
2493 return 0;
2494
2495error_device_add:
2496 platform_device_put(acer_platform_device);
2497error_device_alloc:
2498 platform_driver_unregister(&acer_platform_driver);
2499error_platform_register:
2500 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2501 acer_wmi_input_destroy();
2502 if (acer_wmi_accel_dev)
2503 input_unregister_device(acer_wmi_accel_dev);
2504
2505 return err;
2506}
2507
2508static void __exit acer_wmi_exit(void)
2509{
2510 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2511 acer_wmi_input_destroy();
2512
2513 if (acer_wmi_accel_dev)
2514 input_unregister_device(acer_wmi_accel_dev);
2515
2516 remove_debugfs();
2517 platform_device_unregister(acer_platform_device);
2518 platform_driver_unregister(&acer_platform_driver);
2519
2520 pr_info("Acer Laptop WMI Extras unloaded\n");
2521 return;
2522}
2523
2524module_init(acer_wmi_init);
2525module_exit(acer_wmi_exit);