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