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