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1/*
2 * Acer WMI Laptop Extras
3 *
4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
5 *
6 * Based on acer_acpi:
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/dmi.h>
32#include <linux/fb.h>
33#include <linux/backlight.h>
34#include <linux/leds.h>
35#include <linux/platform_device.h>
36#include <linux/acpi.h>
37#include <linux/i8042.h>
38#include <linux/rfkill.h>
39#include <linux/workqueue.h>
40#include <linux/debugfs.h>
41#include <linux/slab.h>
42#include <linux/input.h>
43#include <linux/input/sparse-keymap.h>
44
45#include <acpi/acpi_drivers.h>
46#include <acpi/video.h>
47
48MODULE_AUTHOR("Carlos Corbacho");
49MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
50MODULE_LICENSE("GPL");
51
52/*
53 * Magic Number
54 * Meaning is unknown - this number is required for writing to ACPI for AMW0
55 * (it's also used in acerhk when directly accessing the BIOS)
56 */
57#define ACER_AMW0_WRITE 0x9610
58
59/*
60 * Bit masks for the AMW0 interface
61 */
62#define ACER_AMW0_WIRELESS_MASK 0x35
63#define ACER_AMW0_BLUETOOTH_MASK 0x34
64#define ACER_AMW0_MAILLED_MASK 0x31
65
66/*
67 * Method IDs for WMID interface
68 */
69#define ACER_WMID_GET_WIRELESS_METHODID 1
70#define ACER_WMID_GET_BLUETOOTH_METHODID 2
71#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
72#define ACER_WMID_SET_WIRELESS_METHODID 4
73#define ACER_WMID_SET_BLUETOOTH_METHODID 5
74#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
75#define ACER_WMID_GET_THREEG_METHODID 10
76#define ACER_WMID_SET_THREEG_METHODID 11
77
78/*
79 * Acer ACPI method GUIDs
80 */
81#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
82#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
83#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
84#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
85#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
86
87/*
88 * Acer ACPI event GUIDs
89 */
90#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
91
92MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
93MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
94MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
95
96enum acer_wmi_event_ids {
97 WMID_HOTKEY_EVENT = 0x1,
98};
99
100static const struct key_entry acer_wmi_keymap[] = {
101 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
104 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
105 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
106 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
107 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
108 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
109 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
110 {KE_IGNORE, 0x41, {KEY_MUTE} },
111 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
113 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
115 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
117 {KE_IGNORE, 0x45, {KEY_STOP} },
118 {KE_IGNORE, 0x50, {KEY_STOP} },
119 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
120 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
122 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
123 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
124 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
125 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
126 {KE_IGNORE, 0x81, {KEY_SLEEP} },
127 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad On/Off */
128 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
129 {KE_END, 0}
130};
131
132static struct input_dev *acer_wmi_input_dev;
133
134struct event_return_value {
135 u8 function;
136 u8 key_num;
137 u16 device_state;
138 u32 reserved;
139} __attribute__((packed));
140
141/*
142 * GUID3 Get Device Status device flags
143 */
144#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
145#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
146#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
147#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
148
149struct lm_input_params {
150 u8 function_num; /* Function Number */
151 u16 commun_devices; /* Communication type devices default status */
152 u16 devices; /* Other type devices default status */
153 u8 lm_status; /* Launch Manager Status */
154 u16 reserved;
155} __attribute__((packed));
156
157struct lm_return_value {
158 u8 error_code; /* Error Code */
159 u8 ec_return_value; /* EC Return Value */
160 u16 reserved;
161} __attribute__((packed));
162
163struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
164 u8 function_num; /* Function Number */
165 u8 hotkey_number; /* Hotkey Number */
166 u16 devices; /* Set Device */
167 u8 volume_value; /* Volume Value */
168} __attribute__((packed));
169
170struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
171 u8 function_num; /* Function Number */
172 u8 hotkey_number; /* Hotkey Number */
173 u16 devices; /* Get Device */
174} __attribute__((packed));
175
176struct wmid3_gds_return_value { /* Get Device Status return value*/
177 u8 error_code; /* Error Code */
178 u8 ec_return_value; /* EC Return Value */
179 u16 devices; /* Current Device Status */
180 u32 reserved;
181} __attribute__((packed));
182
183struct hotkey_function_type_aa {
184 u8 type;
185 u8 length;
186 u16 handle;
187 u16 commun_func_bitmap;
188 u16 application_func_bitmap;
189 u16 media_func_bitmap;
190 u16 display_func_bitmap;
191 u16 others_func_bitmap;
192 u8 commun_fn_key_number;
193} __attribute__((packed));
194
195/*
196 * Interface capability flags
197 */
198#define ACER_CAP_MAILLED (1<<0)
199#define ACER_CAP_WIRELESS (1<<1)
200#define ACER_CAP_BLUETOOTH (1<<2)
201#define ACER_CAP_BRIGHTNESS (1<<3)
202#define ACER_CAP_THREEG (1<<4)
203#define ACER_CAP_ANY (0xFFFFFFFF)
204
205/*
206 * Interface type flags
207 */
208enum interface_flags {
209 ACER_AMW0,
210 ACER_AMW0_V2,
211 ACER_WMID,
212 ACER_WMID_v2,
213};
214
215#define ACER_DEFAULT_WIRELESS 0
216#define ACER_DEFAULT_BLUETOOTH 0
217#define ACER_DEFAULT_MAILLED 0
218#define ACER_DEFAULT_THREEG 0
219
220static int max_brightness = 0xF;
221
222static int mailled = -1;
223static int brightness = -1;
224static int threeg = -1;
225static int force_series;
226static bool ec_raw_mode;
227static bool has_type_aa;
228static u16 commun_func_bitmap;
229static u8 commun_fn_key_number;
230
231module_param(mailled, int, 0444);
232module_param(brightness, int, 0444);
233module_param(threeg, int, 0444);
234module_param(force_series, int, 0444);
235module_param(ec_raw_mode, bool, 0444);
236MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
237MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
238MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
239MODULE_PARM_DESC(force_series, "Force a different laptop series");
240MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
241
242struct acer_data {
243 int mailled;
244 int threeg;
245 int brightness;
246};
247
248struct acer_debug {
249 struct dentry *root;
250 struct dentry *devices;
251 u32 wmid_devices;
252};
253
254static struct rfkill *wireless_rfkill;
255static struct rfkill *bluetooth_rfkill;
256static struct rfkill *threeg_rfkill;
257static bool rfkill_inited;
258
259/* Each low-level interface must define at least some of the following */
260struct wmi_interface {
261 /* The WMI device type */
262 u32 type;
263
264 /* The capabilities this interface provides */
265 u32 capability;
266
267 /* Private data for the current interface */
268 struct acer_data data;
269
270 /* debugfs entries associated with this interface */
271 struct acer_debug debug;
272};
273
274/* The static interface pointer, points to the currently detected interface */
275static struct wmi_interface *interface;
276
277/*
278 * Embedded Controller quirks
279 * Some laptops require us to directly access the EC to either enable or query
280 * features that are not available through WMI.
281 */
282
283struct quirk_entry {
284 u8 wireless;
285 u8 mailled;
286 s8 brightness;
287 u8 bluetooth;
288};
289
290static struct quirk_entry *quirks;
291
292static void set_quirks(void)
293{
294 if (!interface)
295 return;
296
297 if (quirks->mailled)
298 interface->capability |= ACER_CAP_MAILLED;
299
300 if (quirks->brightness)
301 interface->capability |= ACER_CAP_BRIGHTNESS;
302}
303
304static int dmi_matched(const struct dmi_system_id *dmi)
305{
306 quirks = dmi->driver_data;
307 return 1;
308}
309
310static struct quirk_entry quirk_unknown = {
311};
312
313static struct quirk_entry quirk_acer_aspire_1520 = {
314 .brightness = -1,
315};
316
317static struct quirk_entry quirk_acer_travelmate_2490 = {
318 .mailled = 1,
319};
320
321/* This AMW0 laptop has no bluetooth */
322static struct quirk_entry quirk_medion_md_98300 = {
323 .wireless = 1,
324};
325
326static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
327 .wireless = 2,
328};
329
330static struct quirk_entry quirk_lenovo_ideapad_s205 = {
331 .wireless = 3,
332};
333
334/* The Aspire One has a dummy ACPI-WMI interface - disable it */
335static struct dmi_system_id __devinitdata acer_blacklist[] = {
336 {
337 .ident = "Acer Aspire One (SSD)",
338 .matches = {
339 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
340 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
341 },
342 },
343 {
344 .ident = "Acer Aspire One (HDD)",
345 .matches = {
346 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
347 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
348 },
349 },
350 {}
351};
352
353static struct dmi_system_id acer_quirks[] = {
354 {
355 .callback = dmi_matched,
356 .ident = "Acer Aspire 1360",
357 .matches = {
358 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
359 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
360 },
361 .driver_data = &quirk_acer_aspire_1520,
362 },
363 {
364 .callback = dmi_matched,
365 .ident = "Acer Aspire 1520",
366 .matches = {
367 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
368 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
369 },
370 .driver_data = &quirk_acer_aspire_1520,
371 },
372 {
373 .callback = dmi_matched,
374 .ident = "Acer Aspire 3100",
375 .matches = {
376 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
377 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
378 },
379 .driver_data = &quirk_acer_travelmate_2490,
380 },
381 {
382 .callback = dmi_matched,
383 .ident = "Acer Aspire 3610",
384 .matches = {
385 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
386 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
387 },
388 .driver_data = &quirk_acer_travelmate_2490,
389 },
390 {
391 .callback = dmi_matched,
392 .ident = "Acer Aspire 5100",
393 .matches = {
394 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
395 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
396 },
397 .driver_data = &quirk_acer_travelmate_2490,
398 },
399 {
400 .callback = dmi_matched,
401 .ident = "Acer Aspire 5610",
402 .matches = {
403 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
404 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
405 },
406 .driver_data = &quirk_acer_travelmate_2490,
407 },
408 {
409 .callback = dmi_matched,
410 .ident = "Acer Aspire 5630",
411 .matches = {
412 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
413 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
414 },
415 .driver_data = &quirk_acer_travelmate_2490,
416 },
417 {
418 .callback = dmi_matched,
419 .ident = "Acer Aspire 5650",
420 .matches = {
421 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
422 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
423 },
424 .driver_data = &quirk_acer_travelmate_2490,
425 },
426 {
427 .callback = dmi_matched,
428 .ident = "Acer Aspire 5680",
429 .matches = {
430 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
431 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
432 },
433 .driver_data = &quirk_acer_travelmate_2490,
434 },
435 {
436 .callback = dmi_matched,
437 .ident = "Acer Aspire 9110",
438 .matches = {
439 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
440 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
441 },
442 .driver_data = &quirk_acer_travelmate_2490,
443 },
444 {
445 .callback = dmi_matched,
446 .ident = "Acer TravelMate 2490",
447 .matches = {
448 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
449 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
450 },
451 .driver_data = &quirk_acer_travelmate_2490,
452 },
453 {
454 .callback = dmi_matched,
455 .ident = "Acer TravelMate 4200",
456 .matches = {
457 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
458 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
459 },
460 .driver_data = &quirk_acer_travelmate_2490,
461 },
462 {
463 .callback = dmi_matched,
464 .ident = "Fujitsu Siemens Amilo Li 1718",
465 .matches = {
466 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
467 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
468 },
469 .driver_data = &quirk_fujitsu_amilo_li_1718,
470 },
471 {
472 .callback = dmi_matched,
473 .ident = "Medion MD 98300",
474 .matches = {
475 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
476 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
477 },
478 .driver_data = &quirk_medion_md_98300,
479 },
480 {
481 .callback = dmi_matched,
482 .ident = "Lenovo Ideapad S205",
483 .matches = {
484 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
485 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
486 },
487 .driver_data = &quirk_lenovo_ideapad_s205,
488 },
489 {
490 .callback = dmi_matched,
491 .ident = "Lenovo Ideapad S205 (Brazos)",
492 .matches = {
493 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
494 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
495 },
496 .driver_data = &quirk_lenovo_ideapad_s205,
497 },
498 {
499 .callback = dmi_matched,
500 .ident = "Lenovo 3000 N200",
501 .matches = {
502 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
503 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
504 },
505 .driver_data = &quirk_fujitsu_amilo_li_1718,
506 },
507 {}
508};
509
510static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
511{
512 interface->capability &= ~ACER_CAP_BRIGHTNESS;
513 pr_info("Brightness must be controlled by generic video driver\n");
514 return 0;
515}
516
517static const struct dmi_system_id video_vendor_dmi_table[] = {
518 {
519 .callback = video_set_backlight_video_vendor,
520 .ident = "Acer TravelMate 4750",
521 .matches = {
522 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
523 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
524 },
525 },
526 {
527 .callback = video_set_backlight_video_vendor,
528 .ident = "Acer Extensa 5235",
529 .matches = {
530 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
531 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
532 },
533 },
534 {
535 .callback = video_set_backlight_video_vendor,
536 .ident = "Acer TravelMate 5760",
537 .matches = {
538 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
539 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
540 },
541 },
542 {
543 .callback = video_set_backlight_video_vendor,
544 .ident = "Acer Aspire 5750",
545 .matches = {
546 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
548 },
549 },
550 {}
551};
552
553/* Find which quirks are needed for a particular vendor/ model pair */
554static void find_quirks(void)
555{
556 if (!force_series) {
557 dmi_check_system(acer_quirks);
558 } else if (force_series == 2490) {
559 quirks = &quirk_acer_travelmate_2490;
560 }
561
562 if (quirks == NULL)
563 quirks = &quirk_unknown;
564
565 set_quirks();
566}
567
568/*
569 * General interface convenience methods
570 */
571
572static bool has_cap(u32 cap)
573{
574 if ((interface->capability & cap) != 0)
575 return 1;
576
577 return 0;
578}
579
580/*
581 * AMW0 (V1) interface
582 */
583struct wmab_args {
584 u32 eax;
585 u32 ebx;
586 u32 ecx;
587 u32 edx;
588};
589
590struct wmab_ret {
591 u32 eax;
592 u32 ebx;
593 u32 ecx;
594 u32 edx;
595 u32 eex;
596};
597
598static acpi_status wmab_execute(struct wmab_args *regbuf,
599struct acpi_buffer *result)
600{
601 struct acpi_buffer input;
602 acpi_status status;
603 input.length = sizeof(struct wmab_args);
604 input.pointer = (u8 *)regbuf;
605
606 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
607
608 return status;
609}
610
611static acpi_status AMW0_get_u32(u32 *value, u32 cap)
612{
613 int err;
614 u8 result;
615
616 switch (cap) {
617 case ACER_CAP_MAILLED:
618 switch (quirks->mailled) {
619 default:
620 err = ec_read(0xA, &result);
621 if (err)
622 return AE_ERROR;
623 *value = (result >> 7) & 0x1;
624 return AE_OK;
625 }
626 break;
627 case ACER_CAP_WIRELESS:
628 switch (quirks->wireless) {
629 case 1:
630 err = ec_read(0x7B, &result);
631 if (err)
632 return AE_ERROR;
633 *value = result & 0x1;
634 return AE_OK;
635 case 2:
636 err = ec_read(0x71, &result);
637 if (err)
638 return AE_ERROR;
639 *value = result & 0x1;
640 return AE_OK;
641 case 3:
642 err = ec_read(0x78, &result);
643 if (err)
644 return AE_ERROR;
645 *value = result & 0x1;
646 return AE_OK;
647 default:
648 err = ec_read(0xA, &result);
649 if (err)
650 return AE_ERROR;
651 *value = (result >> 2) & 0x1;
652 return AE_OK;
653 }
654 break;
655 case ACER_CAP_BLUETOOTH:
656 switch (quirks->bluetooth) {
657 default:
658 err = ec_read(0xA, &result);
659 if (err)
660 return AE_ERROR;
661 *value = (result >> 4) & 0x1;
662 return AE_OK;
663 }
664 break;
665 case ACER_CAP_BRIGHTNESS:
666 switch (quirks->brightness) {
667 default:
668 err = ec_read(0x83, &result);
669 if (err)
670 return AE_ERROR;
671 *value = result;
672 return AE_OK;
673 }
674 break;
675 default:
676 return AE_ERROR;
677 }
678 return AE_OK;
679}
680
681static acpi_status AMW0_set_u32(u32 value, u32 cap)
682{
683 struct wmab_args args;
684
685 args.eax = ACER_AMW0_WRITE;
686 args.ebx = value ? (1<<8) : 0;
687 args.ecx = args.edx = 0;
688
689 switch (cap) {
690 case ACER_CAP_MAILLED:
691 if (value > 1)
692 return AE_BAD_PARAMETER;
693 args.ebx |= ACER_AMW0_MAILLED_MASK;
694 break;
695 case ACER_CAP_WIRELESS:
696 if (value > 1)
697 return AE_BAD_PARAMETER;
698 args.ebx |= ACER_AMW0_WIRELESS_MASK;
699 break;
700 case ACER_CAP_BLUETOOTH:
701 if (value > 1)
702 return AE_BAD_PARAMETER;
703 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
704 break;
705 case ACER_CAP_BRIGHTNESS:
706 if (value > max_brightness)
707 return AE_BAD_PARAMETER;
708 switch (quirks->brightness) {
709 default:
710 return ec_write(0x83, value);
711 break;
712 }
713 default:
714 return AE_ERROR;
715 }
716
717 /* Actually do the set */
718 return wmab_execute(&args, NULL);
719}
720
721static acpi_status AMW0_find_mailled(void)
722{
723 struct wmab_args args;
724 struct wmab_ret ret;
725 acpi_status status = AE_OK;
726 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
727 union acpi_object *obj;
728
729 args.eax = 0x86;
730 args.ebx = args.ecx = args.edx = 0;
731
732 status = wmab_execute(&args, &out);
733 if (ACPI_FAILURE(status))
734 return status;
735
736 obj = (union acpi_object *) out.pointer;
737 if (obj && obj->type == ACPI_TYPE_BUFFER &&
738 obj->buffer.length == sizeof(struct wmab_ret)) {
739 ret = *((struct wmab_ret *) obj->buffer.pointer);
740 } else {
741 kfree(out.pointer);
742 return AE_ERROR;
743 }
744
745 if (ret.eex & 0x1)
746 interface->capability |= ACER_CAP_MAILLED;
747
748 kfree(out.pointer);
749
750 return AE_OK;
751}
752
753static int AMW0_set_cap_acpi_check_device_found;
754
755static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
756 u32 level, void *context, void **retval)
757{
758 AMW0_set_cap_acpi_check_device_found = 1;
759 return AE_OK;
760}
761
762static const struct acpi_device_id norfkill_ids[] = {
763 { "VPC2004", 0},
764 { "IBM0068", 0},
765 { "LEN0068", 0},
766 { "SNY5001", 0}, /* sony-laptop in charge */
767 { "", 0},
768};
769
770static int AMW0_set_cap_acpi_check_device(void)
771{
772 const struct acpi_device_id *id;
773
774 for (id = norfkill_ids; id->id[0]; id++)
775 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
776 NULL, NULL);
777 return AMW0_set_cap_acpi_check_device_found;
778}
779
780static acpi_status AMW0_set_capabilities(void)
781{
782 struct wmab_args args;
783 struct wmab_ret ret;
784 acpi_status status;
785 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
786 union acpi_object *obj;
787
788 /*
789 * On laptops with this strange GUID (non Acer), normal probing doesn't
790 * work.
791 */
792 if (wmi_has_guid(AMW0_GUID2)) {
793 if ((quirks != &quirk_unknown) ||
794 !AMW0_set_cap_acpi_check_device())
795 interface->capability |= ACER_CAP_WIRELESS;
796 return AE_OK;
797 }
798
799 args.eax = ACER_AMW0_WRITE;
800 args.ecx = args.edx = 0;
801
802 args.ebx = 0xa2 << 8;
803 args.ebx |= ACER_AMW0_WIRELESS_MASK;
804
805 status = wmab_execute(&args, &out);
806 if (ACPI_FAILURE(status))
807 return status;
808
809 obj = out.pointer;
810 if (obj && obj->type == ACPI_TYPE_BUFFER &&
811 obj->buffer.length == sizeof(struct wmab_ret)) {
812 ret = *((struct wmab_ret *) obj->buffer.pointer);
813 } else {
814 status = AE_ERROR;
815 goto out;
816 }
817
818 if (ret.eax & 0x1)
819 interface->capability |= ACER_CAP_WIRELESS;
820
821 args.ebx = 2 << 8;
822 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
823
824 /*
825 * It's ok to use existing buffer for next wmab_execute call.
826 * But we need to kfree(out.pointer) if next wmab_execute fail.
827 */
828 status = wmab_execute(&args, &out);
829 if (ACPI_FAILURE(status))
830 goto out;
831
832 obj = (union acpi_object *) out.pointer;
833 if (obj && obj->type == ACPI_TYPE_BUFFER
834 && obj->buffer.length == sizeof(struct wmab_ret)) {
835 ret = *((struct wmab_ret *) obj->buffer.pointer);
836 } else {
837 status = AE_ERROR;
838 goto out;
839 }
840
841 if (ret.eax & 0x1)
842 interface->capability |= ACER_CAP_BLUETOOTH;
843
844 /*
845 * This appears to be safe to enable, since all Wistron based laptops
846 * appear to use the same EC register for brightness, even if they
847 * differ for wireless, etc
848 */
849 if (quirks->brightness >= 0)
850 interface->capability |= ACER_CAP_BRIGHTNESS;
851
852 status = AE_OK;
853out:
854 kfree(out.pointer);
855 return status;
856}
857
858static struct wmi_interface AMW0_interface = {
859 .type = ACER_AMW0,
860};
861
862static struct wmi_interface AMW0_V2_interface = {
863 .type = ACER_AMW0_V2,
864};
865
866/*
867 * New interface (The WMID interface)
868 */
869static acpi_status
870WMI_execute_u32(u32 method_id, u32 in, u32 *out)
871{
872 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
873 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
874 union acpi_object *obj;
875 u32 tmp;
876 acpi_status status;
877
878 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
879
880 if (ACPI_FAILURE(status))
881 return status;
882
883 obj = (union acpi_object *) result.pointer;
884 if (obj && obj->type == ACPI_TYPE_BUFFER &&
885 (obj->buffer.length == sizeof(u32) ||
886 obj->buffer.length == sizeof(u64))) {
887 tmp = *((u32 *) obj->buffer.pointer);
888 } else if (obj->type == ACPI_TYPE_INTEGER) {
889 tmp = (u32) obj->integer.value;
890 } else {
891 tmp = 0;
892 }
893
894 if (out)
895 *out = tmp;
896
897 kfree(result.pointer);
898
899 return status;
900}
901
902static acpi_status WMID_get_u32(u32 *value, u32 cap)
903{
904 acpi_status status;
905 u8 tmp;
906 u32 result, method_id = 0;
907
908 switch (cap) {
909 case ACER_CAP_WIRELESS:
910 method_id = ACER_WMID_GET_WIRELESS_METHODID;
911 break;
912 case ACER_CAP_BLUETOOTH:
913 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
914 break;
915 case ACER_CAP_BRIGHTNESS:
916 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
917 break;
918 case ACER_CAP_THREEG:
919 method_id = ACER_WMID_GET_THREEG_METHODID;
920 break;
921 case ACER_CAP_MAILLED:
922 if (quirks->mailled == 1) {
923 ec_read(0x9f, &tmp);
924 *value = tmp & 0x1;
925 return 0;
926 }
927 default:
928 return AE_ERROR;
929 }
930 status = WMI_execute_u32(method_id, 0, &result);
931
932 if (ACPI_SUCCESS(status))
933 *value = (u8)result;
934
935 return status;
936}
937
938static acpi_status WMID_set_u32(u32 value, u32 cap)
939{
940 u32 method_id = 0;
941 char param;
942
943 switch (cap) {
944 case ACER_CAP_BRIGHTNESS:
945 if (value > max_brightness)
946 return AE_BAD_PARAMETER;
947 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
948 break;
949 case ACER_CAP_WIRELESS:
950 if (value > 1)
951 return AE_BAD_PARAMETER;
952 method_id = ACER_WMID_SET_WIRELESS_METHODID;
953 break;
954 case ACER_CAP_BLUETOOTH:
955 if (value > 1)
956 return AE_BAD_PARAMETER;
957 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
958 break;
959 case ACER_CAP_THREEG:
960 if (value > 1)
961 return AE_BAD_PARAMETER;
962 method_id = ACER_WMID_SET_THREEG_METHODID;
963 break;
964 case ACER_CAP_MAILLED:
965 if (value > 1)
966 return AE_BAD_PARAMETER;
967 if (quirks->mailled == 1) {
968 param = value ? 0x92 : 0x93;
969 i8042_lock_chip();
970 i8042_command(¶m, 0x1059);
971 i8042_unlock_chip();
972 return 0;
973 }
974 break;
975 default:
976 return AE_ERROR;
977 }
978 return WMI_execute_u32(method_id, (u32)value, NULL);
979}
980
981static acpi_status wmid3_get_device_status(u32 *value, u16 device)
982{
983 struct wmid3_gds_return_value return_value;
984 acpi_status status;
985 union acpi_object *obj;
986 struct wmid3_gds_get_input_param params = {
987 .function_num = 0x1,
988 .hotkey_number = commun_fn_key_number,
989 .devices = device,
990 };
991 struct acpi_buffer input = {
992 sizeof(struct wmid3_gds_get_input_param),
993 ¶ms
994 };
995 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
996
997 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
998 if (ACPI_FAILURE(status))
999 return status;
1000
1001 obj = output.pointer;
1002
1003 if (!obj)
1004 return AE_ERROR;
1005 else if (obj->type != ACPI_TYPE_BUFFER) {
1006 kfree(obj);
1007 return AE_ERROR;
1008 }
1009 if (obj->buffer.length != 8) {
1010 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1011 kfree(obj);
1012 return AE_ERROR;
1013 }
1014
1015 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1016 kfree(obj);
1017
1018 if (return_value.error_code || return_value.ec_return_value)
1019 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1020 device,
1021 return_value.error_code,
1022 return_value.ec_return_value);
1023 else
1024 *value = !!(return_value.devices & device);
1025
1026 return status;
1027}
1028
1029static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1030{
1031 u16 device;
1032
1033 switch (cap) {
1034 case ACER_CAP_WIRELESS:
1035 device = ACER_WMID3_GDS_WIRELESS;
1036 break;
1037 case ACER_CAP_BLUETOOTH:
1038 device = ACER_WMID3_GDS_BLUETOOTH;
1039 break;
1040 case ACER_CAP_THREEG:
1041 device = ACER_WMID3_GDS_THREEG;
1042 break;
1043 default:
1044 return AE_ERROR;
1045 }
1046 return wmid3_get_device_status(value, device);
1047}
1048
1049static acpi_status wmid3_set_device_status(u32 value, u16 device)
1050{
1051 struct wmid3_gds_return_value return_value;
1052 acpi_status status;
1053 union acpi_object *obj;
1054 u16 devices;
1055 struct wmid3_gds_get_input_param get_params = {
1056 .function_num = 0x1,
1057 .hotkey_number = commun_fn_key_number,
1058 .devices = commun_func_bitmap,
1059 };
1060 struct acpi_buffer get_input = {
1061 sizeof(struct wmid3_gds_get_input_param),
1062 &get_params
1063 };
1064 struct wmid3_gds_set_input_param set_params = {
1065 .function_num = 0x2,
1066 .hotkey_number = commun_fn_key_number,
1067 .devices = commun_func_bitmap,
1068 };
1069 struct acpi_buffer set_input = {
1070 sizeof(struct wmid3_gds_set_input_param),
1071 &set_params
1072 };
1073 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1074 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1075
1076 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1077 if (ACPI_FAILURE(status))
1078 return status;
1079
1080 obj = output.pointer;
1081
1082 if (!obj)
1083 return AE_ERROR;
1084 else if (obj->type != ACPI_TYPE_BUFFER) {
1085 kfree(obj);
1086 return AE_ERROR;
1087 }
1088 if (obj->buffer.length != 8) {
1089 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1090 kfree(obj);
1091 return AE_ERROR;
1092 }
1093
1094 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1095 kfree(obj);
1096
1097 if (return_value.error_code || return_value.ec_return_value) {
1098 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1099 return_value.error_code,
1100 return_value.ec_return_value);
1101 return status;
1102 }
1103
1104 devices = return_value.devices;
1105 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1106
1107 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1108 if (ACPI_FAILURE(status))
1109 return status;
1110
1111 obj = output2.pointer;
1112
1113 if (!obj)
1114 return AE_ERROR;
1115 else if (obj->type != ACPI_TYPE_BUFFER) {
1116 kfree(obj);
1117 return AE_ERROR;
1118 }
1119 if (obj->buffer.length != 4) {
1120 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1121 kfree(obj);
1122 return AE_ERROR;
1123 }
1124
1125 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1126 kfree(obj);
1127
1128 if (return_value.error_code || return_value.ec_return_value)
1129 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1130 return_value.error_code,
1131 return_value.ec_return_value);
1132
1133 return status;
1134}
1135
1136static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1137{
1138 u16 device;
1139
1140 switch (cap) {
1141 case ACER_CAP_WIRELESS:
1142 device = ACER_WMID3_GDS_WIRELESS;
1143 break;
1144 case ACER_CAP_BLUETOOTH:
1145 device = ACER_WMID3_GDS_BLUETOOTH;
1146 break;
1147 case ACER_CAP_THREEG:
1148 device = ACER_WMID3_GDS_THREEG;
1149 break;
1150 default:
1151 return AE_ERROR;
1152 }
1153 return wmid3_set_device_status(value, device);
1154}
1155
1156static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
1157{
1158 struct hotkey_function_type_aa *type_aa;
1159
1160 /* We are looking for OEM-specific Type AAh */
1161 if (header->type != 0xAA)
1162 return;
1163
1164 has_type_aa = true;
1165 type_aa = (struct hotkey_function_type_aa *) header;
1166
1167 pr_info("Function bitmap for Communication Button: 0x%x\n",
1168 type_aa->commun_func_bitmap);
1169 commun_func_bitmap = type_aa->commun_func_bitmap;
1170
1171 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1172 interface->capability |= ACER_CAP_WIRELESS;
1173 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1174 interface->capability |= ACER_CAP_THREEG;
1175 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1176 interface->capability |= ACER_CAP_BLUETOOTH;
1177
1178 commun_fn_key_number = type_aa->commun_fn_key_number;
1179}
1180
1181static acpi_status WMID_set_capabilities(void)
1182{
1183 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1184 union acpi_object *obj;
1185 acpi_status status;
1186 u32 devices;
1187
1188 status = wmi_query_block(WMID_GUID2, 1, &out);
1189 if (ACPI_FAILURE(status))
1190 return status;
1191
1192 obj = (union acpi_object *) out.pointer;
1193 if (obj && obj->type == ACPI_TYPE_BUFFER &&
1194 (obj->buffer.length == sizeof(u32) ||
1195 obj->buffer.length == sizeof(u64))) {
1196 devices = *((u32 *) obj->buffer.pointer);
1197 } else if (obj->type == ACPI_TYPE_INTEGER) {
1198 devices = (u32) obj->integer.value;
1199 } else {
1200 kfree(out.pointer);
1201 return AE_ERROR;
1202 }
1203
1204 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1205 if (devices & 0x07)
1206 interface->capability |= ACER_CAP_WIRELESS;
1207 if (devices & 0x40)
1208 interface->capability |= ACER_CAP_THREEG;
1209 if (devices & 0x10)
1210 interface->capability |= ACER_CAP_BLUETOOTH;
1211
1212 if (!(devices & 0x20))
1213 max_brightness = 0x9;
1214
1215 kfree(out.pointer);
1216 return status;
1217}
1218
1219static struct wmi_interface wmid_interface = {
1220 .type = ACER_WMID,
1221};
1222
1223static struct wmi_interface wmid_v2_interface = {
1224 .type = ACER_WMID_v2,
1225};
1226
1227/*
1228 * Generic Device (interface-independent)
1229 */
1230
1231static acpi_status get_u32(u32 *value, u32 cap)
1232{
1233 acpi_status status = AE_ERROR;
1234
1235 switch (interface->type) {
1236 case ACER_AMW0:
1237 status = AMW0_get_u32(value, cap);
1238 break;
1239 case ACER_AMW0_V2:
1240 if (cap == ACER_CAP_MAILLED) {
1241 status = AMW0_get_u32(value, cap);
1242 break;
1243 }
1244 case ACER_WMID:
1245 status = WMID_get_u32(value, cap);
1246 break;
1247 case ACER_WMID_v2:
1248 if (cap & (ACER_CAP_WIRELESS |
1249 ACER_CAP_BLUETOOTH |
1250 ACER_CAP_THREEG))
1251 status = wmid_v2_get_u32(value, cap);
1252 else if (wmi_has_guid(WMID_GUID2))
1253 status = WMID_get_u32(value, cap);
1254 break;
1255 }
1256
1257 return status;
1258}
1259
1260static acpi_status set_u32(u32 value, u32 cap)
1261{
1262 acpi_status status;
1263
1264 if (interface->capability & cap) {
1265 switch (interface->type) {
1266 case ACER_AMW0:
1267 return AMW0_set_u32(value, cap);
1268 case ACER_AMW0_V2:
1269 if (cap == ACER_CAP_MAILLED)
1270 return AMW0_set_u32(value, cap);
1271
1272 /*
1273 * On some models, some WMID methods don't toggle
1274 * properly. For those cases, we want to run the AMW0
1275 * method afterwards to be certain we've really toggled
1276 * the device state.
1277 */
1278 if (cap == ACER_CAP_WIRELESS ||
1279 cap == ACER_CAP_BLUETOOTH) {
1280 status = WMID_set_u32(value, cap);
1281 if (ACPI_FAILURE(status))
1282 return status;
1283
1284 return AMW0_set_u32(value, cap);
1285 }
1286 case ACER_WMID:
1287 return WMID_set_u32(value, cap);
1288 case ACER_WMID_v2:
1289 if (cap & (ACER_CAP_WIRELESS |
1290 ACER_CAP_BLUETOOTH |
1291 ACER_CAP_THREEG))
1292 return wmid_v2_set_u32(value, cap);
1293 else if (wmi_has_guid(WMID_GUID2))
1294 return WMID_set_u32(value, cap);
1295 default:
1296 return AE_BAD_PARAMETER;
1297 }
1298 }
1299 return AE_BAD_PARAMETER;
1300}
1301
1302static void __init acer_commandline_init(void)
1303{
1304 /*
1305 * These will all fail silently if the value given is invalid, or the
1306 * capability isn't available on the given interface
1307 */
1308 if (mailled >= 0)
1309 set_u32(mailled, ACER_CAP_MAILLED);
1310 if (!has_type_aa && threeg >= 0)
1311 set_u32(threeg, ACER_CAP_THREEG);
1312 if (brightness >= 0)
1313 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1314}
1315
1316/*
1317 * LED device (Mail LED only, no other LEDs known yet)
1318 */
1319static void mail_led_set(struct led_classdev *led_cdev,
1320enum led_brightness value)
1321{
1322 set_u32(value, ACER_CAP_MAILLED);
1323}
1324
1325static struct led_classdev mail_led = {
1326 .name = "acer-wmi::mail",
1327 .brightness_set = mail_led_set,
1328};
1329
1330static int __devinit acer_led_init(struct device *dev)
1331{
1332 return led_classdev_register(dev, &mail_led);
1333}
1334
1335static void acer_led_exit(void)
1336{
1337 set_u32(LED_OFF, ACER_CAP_MAILLED);
1338 led_classdev_unregister(&mail_led);
1339}
1340
1341/*
1342 * Backlight device
1343 */
1344static struct backlight_device *acer_backlight_device;
1345
1346static int read_brightness(struct backlight_device *bd)
1347{
1348 u32 value;
1349 get_u32(&value, ACER_CAP_BRIGHTNESS);
1350 return value;
1351}
1352
1353static int update_bl_status(struct backlight_device *bd)
1354{
1355 int intensity = bd->props.brightness;
1356
1357 if (bd->props.power != FB_BLANK_UNBLANK)
1358 intensity = 0;
1359 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1360 intensity = 0;
1361
1362 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1363
1364 return 0;
1365}
1366
1367static const struct backlight_ops acer_bl_ops = {
1368 .get_brightness = read_brightness,
1369 .update_status = update_bl_status,
1370};
1371
1372static int __devinit acer_backlight_init(struct device *dev)
1373{
1374 struct backlight_properties props;
1375 struct backlight_device *bd;
1376
1377 memset(&props, 0, sizeof(struct backlight_properties));
1378 props.type = BACKLIGHT_PLATFORM;
1379 props.max_brightness = max_brightness;
1380 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1381 &props);
1382 if (IS_ERR(bd)) {
1383 pr_err("Could not register Acer backlight device\n");
1384 acer_backlight_device = NULL;
1385 return PTR_ERR(bd);
1386 }
1387
1388 acer_backlight_device = bd;
1389
1390 bd->props.power = FB_BLANK_UNBLANK;
1391 bd->props.brightness = read_brightness(bd);
1392 backlight_update_status(bd);
1393 return 0;
1394}
1395
1396static void acer_backlight_exit(void)
1397{
1398 backlight_device_unregister(acer_backlight_device);
1399}
1400
1401/*
1402 * Rfkill devices
1403 */
1404static void acer_rfkill_update(struct work_struct *ignored);
1405static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1406static void acer_rfkill_update(struct work_struct *ignored)
1407{
1408 u32 state;
1409 acpi_status status;
1410
1411 if (has_cap(ACER_CAP_WIRELESS)) {
1412 status = get_u32(&state, ACER_CAP_WIRELESS);
1413 if (ACPI_SUCCESS(status)) {
1414 if (quirks->wireless == 3)
1415 rfkill_set_hw_state(wireless_rfkill, !state);
1416 else
1417 rfkill_set_sw_state(wireless_rfkill, !state);
1418 }
1419 }
1420
1421 if (has_cap(ACER_CAP_BLUETOOTH)) {
1422 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1423 if (ACPI_SUCCESS(status))
1424 rfkill_set_sw_state(bluetooth_rfkill, !state);
1425 }
1426
1427 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1428 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1429 if (ACPI_SUCCESS(status))
1430 rfkill_set_sw_state(threeg_rfkill, !state);
1431 }
1432
1433 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1434}
1435
1436static int acer_rfkill_set(void *data, bool blocked)
1437{
1438 acpi_status status;
1439 u32 cap = (unsigned long)data;
1440
1441 if (rfkill_inited) {
1442 status = set_u32(!blocked, cap);
1443 if (ACPI_FAILURE(status))
1444 return -ENODEV;
1445 }
1446
1447 return 0;
1448}
1449
1450static const struct rfkill_ops acer_rfkill_ops = {
1451 .set_block = acer_rfkill_set,
1452};
1453
1454static struct rfkill *acer_rfkill_register(struct device *dev,
1455 enum rfkill_type type,
1456 char *name, u32 cap)
1457{
1458 int err;
1459 struct rfkill *rfkill_dev;
1460 u32 state;
1461 acpi_status status;
1462
1463 rfkill_dev = rfkill_alloc(name, dev, type,
1464 &acer_rfkill_ops,
1465 (void *)(unsigned long)cap);
1466 if (!rfkill_dev)
1467 return ERR_PTR(-ENOMEM);
1468
1469 status = get_u32(&state, cap);
1470
1471 err = rfkill_register(rfkill_dev);
1472 if (err) {
1473 rfkill_destroy(rfkill_dev);
1474 return ERR_PTR(err);
1475 }
1476
1477 if (ACPI_SUCCESS(status))
1478 rfkill_set_sw_state(rfkill_dev, !state);
1479
1480 return rfkill_dev;
1481}
1482
1483static int acer_rfkill_init(struct device *dev)
1484{
1485 int err;
1486
1487 if (has_cap(ACER_CAP_WIRELESS)) {
1488 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1489 "acer-wireless", ACER_CAP_WIRELESS);
1490 if (IS_ERR(wireless_rfkill)) {
1491 err = PTR_ERR(wireless_rfkill);
1492 goto error_wireless;
1493 }
1494 }
1495
1496 if (has_cap(ACER_CAP_BLUETOOTH)) {
1497 bluetooth_rfkill = acer_rfkill_register(dev,
1498 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1499 ACER_CAP_BLUETOOTH);
1500 if (IS_ERR(bluetooth_rfkill)) {
1501 err = PTR_ERR(bluetooth_rfkill);
1502 goto error_bluetooth;
1503 }
1504 }
1505
1506 if (has_cap(ACER_CAP_THREEG)) {
1507 threeg_rfkill = acer_rfkill_register(dev,
1508 RFKILL_TYPE_WWAN, "acer-threeg",
1509 ACER_CAP_THREEG);
1510 if (IS_ERR(threeg_rfkill)) {
1511 err = PTR_ERR(threeg_rfkill);
1512 goto error_threeg;
1513 }
1514 }
1515
1516 rfkill_inited = true;
1517
1518 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1519 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1520 schedule_delayed_work(&acer_rfkill_work,
1521 round_jiffies_relative(HZ));
1522
1523 return 0;
1524
1525error_threeg:
1526 if (has_cap(ACER_CAP_BLUETOOTH)) {
1527 rfkill_unregister(bluetooth_rfkill);
1528 rfkill_destroy(bluetooth_rfkill);
1529 }
1530error_bluetooth:
1531 if (has_cap(ACER_CAP_WIRELESS)) {
1532 rfkill_unregister(wireless_rfkill);
1533 rfkill_destroy(wireless_rfkill);
1534 }
1535error_wireless:
1536 return err;
1537}
1538
1539static void acer_rfkill_exit(void)
1540{
1541 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1542 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1543 cancel_delayed_work_sync(&acer_rfkill_work);
1544
1545 if (has_cap(ACER_CAP_WIRELESS)) {
1546 rfkill_unregister(wireless_rfkill);
1547 rfkill_destroy(wireless_rfkill);
1548 }
1549
1550 if (has_cap(ACER_CAP_BLUETOOTH)) {
1551 rfkill_unregister(bluetooth_rfkill);
1552 rfkill_destroy(bluetooth_rfkill);
1553 }
1554
1555 if (has_cap(ACER_CAP_THREEG)) {
1556 rfkill_unregister(threeg_rfkill);
1557 rfkill_destroy(threeg_rfkill);
1558 }
1559 return;
1560}
1561
1562/*
1563 * sysfs interface
1564 */
1565static ssize_t show_bool_threeg(struct device *dev,
1566 struct device_attribute *attr, char *buf)
1567{
1568 u32 result; \
1569 acpi_status status;
1570
1571 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1572 current->comm);
1573 status = get_u32(&result, ACER_CAP_THREEG);
1574 if (ACPI_SUCCESS(status))
1575 return sprintf(buf, "%u\n", result);
1576 return sprintf(buf, "Read error\n");
1577}
1578
1579static ssize_t set_bool_threeg(struct device *dev,
1580 struct device_attribute *attr, const char *buf, size_t count)
1581{
1582 u32 tmp = simple_strtoul(buf, NULL, 10);
1583 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1584 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1585 current->comm);
1586 if (ACPI_FAILURE(status))
1587 return -EINVAL;
1588 return count;
1589}
1590static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1591 set_bool_threeg);
1592
1593static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1594 char *buf)
1595{
1596 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
1597 current->comm);
1598 switch (interface->type) {
1599 case ACER_AMW0:
1600 return sprintf(buf, "AMW0\n");
1601 case ACER_AMW0_V2:
1602 return sprintf(buf, "AMW0 v2\n");
1603 case ACER_WMID:
1604 return sprintf(buf, "WMID\n");
1605 case ACER_WMID_v2:
1606 return sprintf(buf, "WMID v2\n");
1607 default:
1608 return sprintf(buf, "Error!\n");
1609 }
1610}
1611
1612static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1613
1614static void acer_wmi_notify(u32 value, void *context)
1615{
1616 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1617 union acpi_object *obj;
1618 struct event_return_value return_value;
1619 acpi_status status;
1620 u16 device_state;
1621 const struct key_entry *key;
1622
1623 status = wmi_get_event_data(value, &response);
1624 if (status != AE_OK) {
1625 pr_warn("bad event status 0x%x\n", status);
1626 return;
1627 }
1628
1629 obj = (union acpi_object *)response.pointer;
1630
1631 if (!obj)
1632 return;
1633 if (obj->type != ACPI_TYPE_BUFFER) {
1634 pr_warn("Unknown response received %d\n", obj->type);
1635 kfree(obj);
1636 return;
1637 }
1638 if (obj->buffer.length != 8) {
1639 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1640 kfree(obj);
1641 return;
1642 }
1643
1644 return_value = *((struct event_return_value *)obj->buffer.pointer);
1645 kfree(obj);
1646
1647 switch (return_value.function) {
1648 case WMID_HOTKEY_EVENT:
1649 device_state = return_value.device_state;
1650 pr_debug("device state: 0x%x\n", device_state);
1651
1652 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1653 return_value.key_num);
1654 if (!key) {
1655 pr_warn("Unknown key number - 0x%x\n",
1656 return_value.key_num);
1657 } else {
1658 switch (key->keycode) {
1659 case KEY_WLAN:
1660 case KEY_BLUETOOTH:
1661 if (has_cap(ACER_CAP_WIRELESS))
1662 rfkill_set_sw_state(wireless_rfkill,
1663 !(device_state & ACER_WMID3_GDS_WIRELESS));
1664 if (has_cap(ACER_CAP_THREEG))
1665 rfkill_set_sw_state(threeg_rfkill,
1666 !(device_state & ACER_WMID3_GDS_THREEG));
1667 if (has_cap(ACER_CAP_BLUETOOTH))
1668 rfkill_set_sw_state(bluetooth_rfkill,
1669 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1670 break;
1671 }
1672 sparse_keymap_report_entry(acer_wmi_input_dev, key,
1673 1, true);
1674 }
1675 break;
1676 default:
1677 pr_warn("Unknown function number - %d - %d\n",
1678 return_value.function, return_value.key_num);
1679 break;
1680 }
1681}
1682
1683static acpi_status
1684wmid3_set_lm_mode(struct lm_input_params *params,
1685 struct lm_return_value *return_value)
1686{
1687 acpi_status status;
1688 union acpi_object *obj;
1689
1690 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1691 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1692
1693 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1694 if (ACPI_FAILURE(status))
1695 return status;
1696
1697 obj = output.pointer;
1698
1699 if (!obj)
1700 return AE_ERROR;
1701 else if (obj->type != ACPI_TYPE_BUFFER) {
1702 kfree(obj);
1703 return AE_ERROR;
1704 }
1705 if (obj->buffer.length != 4) {
1706 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1707 kfree(obj);
1708 return AE_ERROR;
1709 }
1710
1711 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1712 kfree(obj);
1713
1714 return status;
1715}
1716
1717static int acer_wmi_enable_ec_raw(void)
1718{
1719 struct lm_return_value return_value;
1720 acpi_status status;
1721 struct lm_input_params params = {
1722 .function_num = 0x1,
1723 .commun_devices = 0xFFFF,
1724 .devices = 0xFFFF,
1725 .lm_status = 0x00, /* Launch Manager Deactive */
1726 };
1727
1728 status = wmid3_set_lm_mode(¶ms, &return_value);
1729
1730 if (return_value.error_code || return_value.ec_return_value)
1731 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1732 return_value.error_code,
1733 return_value.ec_return_value);
1734 else
1735 pr_info("Enabled EC raw mode\n");
1736
1737 return status;
1738}
1739
1740static int acer_wmi_enable_lm(void)
1741{
1742 struct lm_return_value return_value;
1743 acpi_status status;
1744 struct lm_input_params params = {
1745 .function_num = 0x1,
1746 .commun_devices = 0xFFFF,
1747 .devices = 0xFFFF,
1748 .lm_status = 0x01, /* Launch Manager Active */
1749 };
1750
1751 status = wmid3_set_lm_mode(¶ms, &return_value);
1752
1753 if (return_value.error_code || return_value.ec_return_value)
1754 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1755 return_value.error_code,
1756 return_value.ec_return_value);
1757
1758 return status;
1759}
1760
1761static int __init acer_wmi_input_setup(void)
1762{
1763 acpi_status status;
1764 int err;
1765
1766 acer_wmi_input_dev = input_allocate_device();
1767 if (!acer_wmi_input_dev)
1768 return -ENOMEM;
1769
1770 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1771 acer_wmi_input_dev->phys = "wmi/input0";
1772 acer_wmi_input_dev->id.bustype = BUS_HOST;
1773
1774 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1775 if (err)
1776 goto err_free_dev;
1777
1778 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1779 acer_wmi_notify, NULL);
1780 if (ACPI_FAILURE(status)) {
1781 err = -EIO;
1782 goto err_free_keymap;
1783 }
1784
1785 err = input_register_device(acer_wmi_input_dev);
1786 if (err)
1787 goto err_uninstall_notifier;
1788
1789 return 0;
1790
1791err_uninstall_notifier:
1792 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1793err_free_keymap:
1794 sparse_keymap_free(acer_wmi_input_dev);
1795err_free_dev:
1796 input_free_device(acer_wmi_input_dev);
1797 return err;
1798}
1799
1800static void acer_wmi_input_destroy(void)
1801{
1802 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1803 sparse_keymap_free(acer_wmi_input_dev);
1804 input_unregister_device(acer_wmi_input_dev);
1805}
1806
1807/*
1808 * debugfs functions
1809 */
1810static u32 get_wmid_devices(void)
1811{
1812 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1813 union acpi_object *obj;
1814 acpi_status status;
1815 u32 devices = 0;
1816
1817 status = wmi_query_block(WMID_GUID2, 1, &out);
1818 if (ACPI_FAILURE(status))
1819 return 0;
1820
1821 obj = (union acpi_object *) out.pointer;
1822 if (obj && obj->type == ACPI_TYPE_BUFFER &&
1823 (obj->buffer.length == sizeof(u32) ||
1824 obj->buffer.length == sizeof(u64))) {
1825 devices = *((u32 *) obj->buffer.pointer);
1826 } else if (obj->type == ACPI_TYPE_INTEGER) {
1827 devices = (u32) obj->integer.value;
1828 }
1829
1830 kfree(out.pointer);
1831 return devices;
1832}
1833
1834/*
1835 * Platform device
1836 */
1837static int __devinit acer_platform_probe(struct platform_device *device)
1838{
1839 int err;
1840
1841 if (has_cap(ACER_CAP_MAILLED)) {
1842 err = acer_led_init(&device->dev);
1843 if (err)
1844 goto error_mailled;
1845 }
1846
1847 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1848 err = acer_backlight_init(&device->dev);
1849 if (err)
1850 goto error_brightness;
1851 }
1852
1853 err = acer_rfkill_init(&device->dev);
1854 if (err)
1855 goto error_rfkill;
1856
1857 return err;
1858
1859error_rfkill:
1860 if (has_cap(ACER_CAP_BRIGHTNESS))
1861 acer_backlight_exit();
1862error_brightness:
1863 if (has_cap(ACER_CAP_MAILLED))
1864 acer_led_exit();
1865error_mailled:
1866 return err;
1867}
1868
1869static int acer_platform_remove(struct platform_device *device)
1870{
1871 if (has_cap(ACER_CAP_MAILLED))
1872 acer_led_exit();
1873 if (has_cap(ACER_CAP_BRIGHTNESS))
1874 acer_backlight_exit();
1875
1876 acer_rfkill_exit();
1877 return 0;
1878}
1879
1880static int acer_platform_suspend(struct platform_device *dev,
1881pm_message_t state)
1882{
1883 u32 value;
1884 struct acer_data *data = &interface->data;
1885
1886 if (!data)
1887 return -ENOMEM;
1888
1889 if (has_cap(ACER_CAP_MAILLED)) {
1890 get_u32(&value, ACER_CAP_MAILLED);
1891 set_u32(LED_OFF, ACER_CAP_MAILLED);
1892 data->mailled = value;
1893 }
1894
1895 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1896 get_u32(&value, ACER_CAP_BRIGHTNESS);
1897 data->brightness = value;
1898 }
1899
1900 return 0;
1901}
1902
1903static int acer_platform_resume(struct platform_device *device)
1904{
1905 struct acer_data *data = &interface->data;
1906
1907 if (!data)
1908 return -ENOMEM;
1909
1910 if (has_cap(ACER_CAP_MAILLED))
1911 set_u32(data->mailled, ACER_CAP_MAILLED);
1912
1913 if (has_cap(ACER_CAP_BRIGHTNESS))
1914 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
1915
1916 return 0;
1917}
1918
1919static void acer_platform_shutdown(struct platform_device *device)
1920{
1921 struct acer_data *data = &interface->data;
1922
1923 if (!data)
1924 return;
1925
1926 if (has_cap(ACER_CAP_MAILLED))
1927 set_u32(LED_OFF, ACER_CAP_MAILLED);
1928}
1929
1930static struct platform_driver acer_platform_driver = {
1931 .driver = {
1932 .name = "acer-wmi",
1933 .owner = THIS_MODULE,
1934 },
1935 .probe = acer_platform_probe,
1936 .remove = acer_platform_remove,
1937 .suspend = acer_platform_suspend,
1938 .resume = acer_platform_resume,
1939 .shutdown = acer_platform_shutdown,
1940};
1941
1942static struct platform_device *acer_platform_device;
1943
1944static int remove_sysfs(struct platform_device *device)
1945{
1946 if (has_cap(ACER_CAP_THREEG))
1947 device_remove_file(&device->dev, &dev_attr_threeg);
1948
1949 device_remove_file(&device->dev, &dev_attr_interface);
1950
1951 return 0;
1952}
1953
1954static int create_sysfs(void)
1955{
1956 int retval = -ENOMEM;
1957
1958 if (has_cap(ACER_CAP_THREEG)) {
1959 retval = device_create_file(&acer_platform_device->dev,
1960 &dev_attr_threeg);
1961 if (retval)
1962 goto error_sysfs;
1963 }
1964
1965 retval = device_create_file(&acer_platform_device->dev,
1966 &dev_attr_interface);
1967 if (retval)
1968 goto error_sysfs;
1969
1970 return 0;
1971
1972error_sysfs:
1973 remove_sysfs(acer_platform_device);
1974 return retval;
1975}
1976
1977static void remove_debugfs(void)
1978{
1979 debugfs_remove(interface->debug.devices);
1980 debugfs_remove(interface->debug.root);
1981}
1982
1983static int create_debugfs(void)
1984{
1985 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
1986 if (!interface->debug.root) {
1987 pr_err("Failed to create debugfs directory");
1988 return -ENOMEM;
1989 }
1990
1991 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
1992 interface->debug.root,
1993 &interface->debug.wmid_devices);
1994 if (!interface->debug.devices)
1995 goto error_debugfs;
1996
1997 return 0;
1998
1999error_debugfs:
2000 remove_debugfs();
2001 return -ENOMEM;
2002}
2003
2004static int __init acer_wmi_init(void)
2005{
2006 int err;
2007
2008 pr_info("Acer Laptop ACPI-WMI Extras\n");
2009
2010 if (dmi_check_system(acer_blacklist)) {
2011 pr_info("Blacklisted hardware detected - not loading\n");
2012 return -ENODEV;
2013 }
2014
2015 find_quirks();
2016
2017 /*
2018 * Detect which ACPI-WMI interface we're using.
2019 */
2020 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2021 interface = &AMW0_V2_interface;
2022
2023 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2024 interface = &wmid_interface;
2025
2026 if (wmi_has_guid(WMID_GUID3))
2027 interface = &wmid_v2_interface;
2028
2029 if (interface)
2030 dmi_walk(type_aa_dmi_decode, NULL);
2031
2032 if (wmi_has_guid(WMID_GUID2) && interface) {
2033 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2034 pr_err("Unable to detect available WMID devices\n");
2035 return -ENODEV;
2036 }
2037 /* WMID always provides brightness methods */
2038 interface->capability |= ACER_CAP_BRIGHTNESS;
2039 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2040 pr_err("No WMID device detection method found\n");
2041 return -ENODEV;
2042 }
2043
2044 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2045 interface = &AMW0_interface;
2046
2047 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2048 pr_err("Unable to detect available AMW0 devices\n");
2049 return -ENODEV;
2050 }
2051 }
2052
2053 if (wmi_has_guid(AMW0_GUID1))
2054 AMW0_find_mailled();
2055
2056 if (!interface) {
2057 pr_err("No or unsupported WMI interface, unable to load\n");
2058 return -ENODEV;
2059 }
2060
2061 set_quirks();
2062
2063 if (acpi_video_backlight_support()) {
2064 if (dmi_check_system(video_vendor_dmi_table)) {
2065 acpi_video_unregister();
2066 } else {
2067 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2068 pr_info("Brightness must be controlled by "
2069 "acpi video driver\n");
2070 }
2071 }
2072
2073 if (wmi_has_guid(WMID_GUID3)) {
2074 if (ec_raw_mode) {
2075 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2076 pr_err("Cannot enable EC raw mode\n");
2077 return -ENODEV;
2078 }
2079 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2080 pr_err("Cannot enable Launch Manager mode\n");
2081 return -ENODEV;
2082 }
2083 } else if (ec_raw_mode) {
2084 pr_info("No WMID EC raw mode enable method\n");
2085 }
2086
2087 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2088 err = acer_wmi_input_setup();
2089 if (err)
2090 return err;
2091 }
2092
2093 err = platform_driver_register(&acer_platform_driver);
2094 if (err) {
2095 pr_err("Unable to register platform driver\n");
2096 goto error_platform_register;
2097 }
2098
2099 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2100 if (!acer_platform_device) {
2101 err = -ENOMEM;
2102 goto error_device_alloc;
2103 }
2104
2105 err = platform_device_add(acer_platform_device);
2106 if (err)
2107 goto error_device_add;
2108
2109 err = create_sysfs();
2110 if (err)
2111 goto error_create_sys;
2112
2113 if (wmi_has_guid(WMID_GUID2)) {
2114 interface->debug.wmid_devices = get_wmid_devices();
2115 err = create_debugfs();
2116 if (err)
2117 goto error_create_debugfs;
2118 }
2119
2120 /* Override any initial settings with values from the commandline */
2121 acer_commandline_init();
2122
2123 return 0;
2124
2125error_create_debugfs:
2126 remove_sysfs(acer_platform_device);
2127error_create_sys:
2128 platform_device_del(acer_platform_device);
2129error_device_add:
2130 platform_device_put(acer_platform_device);
2131error_device_alloc:
2132 platform_driver_unregister(&acer_platform_driver);
2133error_platform_register:
2134 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2135 acer_wmi_input_destroy();
2136
2137 return err;
2138}
2139
2140static void __exit acer_wmi_exit(void)
2141{
2142 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2143 acer_wmi_input_destroy();
2144
2145 remove_sysfs(acer_platform_device);
2146 remove_debugfs();
2147 platform_device_unregister(acer_platform_device);
2148 platform_driver_unregister(&acer_platform_driver);
2149
2150 pr_info("Acer Laptop WMI Extras unloaded\n");
2151 return;
2152}
2153
2154module_init(acer_wmi_init);
2155module_exit(acer_wmi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Acer WMI Laptop Extras
4 *
5 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
6 *
7 * Based on acer_acpi:
8 * Copyright (C) 2005-2007 E.M. Smith
9 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
10 */
11
12#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/types.h>
18#include <linux/dmi.h>
19#include <linux/fb.h>
20#include <linux/backlight.h>
21#include <linux/leds.h>
22#include <linux/platform_device.h>
23#include <linux/acpi.h>
24#include <linux/i8042.h>
25#include <linux/rfkill.h>
26#include <linux/workqueue.h>
27#include <linux/debugfs.h>
28#include <linux/slab.h>
29#include <linux/input.h>
30#include <linux/input/sparse-keymap.h>
31#include <acpi/video.h>
32
33MODULE_AUTHOR("Carlos Corbacho");
34MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
35MODULE_LICENSE("GPL");
36
37/*
38 * Magic Number
39 * Meaning is unknown - this number is required for writing to ACPI for AMW0
40 * (it's also used in acerhk when directly accessing the BIOS)
41 */
42#define ACER_AMW0_WRITE 0x9610
43
44/*
45 * Bit masks for the AMW0 interface
46 */
47#define ACER_AMW0_WIRELESS_MASK 0x35
48#define ACER_AMW0_BLUETOOTH_MASK 0x34
49#define ACER_AMW0_MAILLED_MASK 0x31
50
51/*
52 * Method IDs for WMID interface
53 */
54#define ACER_WMID_GET_WIRELESS_METHODID 1
55#define ACER_WMID_GET_BLUETOOTH_METHODID 2
56#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
57#define ACER_WMID_SET_WIRELESS_METHODID 4
58#define ACER_WMID_SET_BLUETOOTH_METHODID 5
59#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
60#define ACER_WMID_GET_THREEG_METHODID 10
61#define ACER_WMID_SET_THREEG_METHODID 11
62
63/*
64 * Acer ACPI method GUIDs
65 */
66#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
67#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
68#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
69#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
70#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
71
72/*
73 * Acer ACPI event GUIDs
74 */
75#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
76
77MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
78MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
79MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
80
81enum acer_wmi_event_ids {
82 WMID_HOTKEY_EVENT = 0x1,
83 WMID_ACCEL_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 /* fall through */
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 /* fall through */
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 /* fall through */
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 /* fall through */
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);