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acer-wmi: Add 3G rfkill sysfs file
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / platform / x86 / acer-wmi.c
CommitLineData
745a5d21
CC		 1/*
2 * Acer WMI Laptop Extras
3 *
4f0175dc 4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
745a5d21
CC		 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
745a5d21
CC		 25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/types.h>
29#include <linux/dmi.h>
f2b585b4 30#include <linux/fb.h>
745a5d21
CC		 31#include <linux/backlight.h>
32#include <linux/leds.h>
33#include <linux/platform_device.h>
34#include <linux/acpi.h>
35#include <linux/i8042.h>
0606e1ab
CC		 36#include <linux/rfkill.h>
37#include <linux/workqueue.h>
81143522 38#include <linux/debugfs.h>
5a0e3ad6 39#include <linux/slab.h>
3fdca87d
LCY		 40#include <linux/input.h>
41#include <linux/input/sparse-keymap.h>
745a5d21
CC		 42
43#include <acpi/acpi_drivers.h>
44
45MODULE_AUTHOR("Carlos Corbacho");
46MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
47MODULE_LICENSE("GPL");
48
49#define ACER_LOGPREFIX "acer-wmi: "
50#define ACER_ERR KERN_ERR ACER_LOGPREFIX
51#define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX
52#define ACER_INFO KERN_INFO ACER_LOGPREFIX
3fdca87d 53#define ACER_WARNING KERN_WARNING ACER_LOGPREFIX
745a5d21 54
745a5d21
CC		 55/*
56 * Magic Number
57 * Meaning is unknown - this number is required for writing to ACPI for AMW0
58 * (it's also used in acerhk when directly accessing the BIOS)
59 */
60#define ACER_AMW0_WRITE 0x9610
61
62/*
63 * Bit masks for the AMW0 interface
64 */
65#define ACER_AMW0_WIRELESS_MASK 0x35
66#define ACER_AMW0_BLUETOOTH_MASK 0x34
67#define ACER_AMW0_MAILLED_MASK 0x31
68
69/*
70 * Method IDs for WMID interface
71 */
72#define ACER_WMID_GET_WIRELESS_METHODID 1
73#define ACER_WMID_GET_BLUETOOTH_METHODID 2
74#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
75#define ACER_WMID_SET_WIRELESS_METHODID 4
76#define ACER_WMID_SET_BLUETOOTH_METHODID 5
77#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
78#define ACER_WMID_GET_THREEG_METHODID 10
79#define ACER_WMID_SET_THREEG_METHODID 11
80
81/*
82 * Acer ACPI method GUIDs
83 */
84#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
5753dd53 85#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
745a5d21
CC		 86#define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"
87#define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A"
b3c9092b 88#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
745a5d21 89
3fdca87d
LCY		 90/*
91 * Acer ACPI event GUIDs
92 */
93#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
94
745a5d21
CC		 95MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
96MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3");
3fdca87d
LCY		 97MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
98
99enum acer_wmi_event_ids {
100 WMID_HOTKEY_EVENT = 0x1,
101};
102
103static const struct key_entry acer_wmi_keymap[] = {
104 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
105 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
106 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
107 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
108 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
109 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
110 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
111 {KE_KEY, 0x82, {KEY_F22} }, /* Touch Pad On/Off */
112 {KE_END, 0}
113};
114
115static struct input_dev *acer_wmi_input_dev;
116
117struct event_return_value {
118 u8 function;
119 u8 key_num;
120 u16 device_state;
121 u32 reserved;
122} __attribute__((packed));
745a5d21 123
b3c9092b
LCY		 124/*
125 * GUID3 Get Device Status device flags
126 */
127#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
128
129struct wmid3_gds_input_param { /* Get Device Status input parameter */
130 u8 function_num; /* Function Number */
131 u8 hotkey_number; /* Hotkey Number */
132 u16 devices; /* Get Device */
133} __attribute__((packed));
134
135struct wmid3_gds_return_value { /* Get Device Status return value*/
136 u8 error_code; /* Error Code */
137 u8 ec_return_value; /* EC Return Value */
138 u16 devices; /* Current Device Status */
139 u32 reserved;
140} __attribute__((packed));
141
745a5d21
CC		 142/*
143 * Interface capability flags
144 */
145#define ACER_CAP_MAILLED (1<<0)
146#define ACER_CAP_WIRELESS (1<<1)
147#define ACER_CAP_BLUETOOTH (1<<2)
148#define ACER_CAP_BRIGHTNESS (1<<3)
149#define ACER_CAP_THREEG (1<<4)
150#define ACER_CAP_ANY (0xFFFFFFFF)
151
152/*
153 * Interface type flags
154 */
155enum interface_flags {
156 ACER_AMW0,
157 ACER_AMW0_V2,
158 ACER_WMID,
159};
160
161#define ACER_DEFAULT_WIRELESS 0
162#define ACER_DEFAULT_BLUETOOTH 0
163#define ACER_DEFAULT_MAILLED 0
164#define ACER_DEFAULT_THREEG 0
165
166static int max_brightness = 0xF;
167
745a5d21
CC		 168static int mailled = -1;
169static int brightness = -1;
170static int threeg = -1;
171static int force_series;
172
173module_param(mailled, int, 0444);
745a5d21
CC		 174module_param(brightness, int, 0444);
175module_param(threeg, int, 0444);
176module_param(force_series, int, 0444);
745a5d21
CC		 177MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
178MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
179MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
180MODULE_PARM_DESC(force_series, "Force a different laptop series");
181
182struct acer_data {
183 int mailled;
745a5d21
CC		 184 int threeg;
185 int brightness;
186};
187
81143522
CC		 188struct acer_debug {
189 struct dentry *root;
190 struct dentry *devices;
191 u32 wmid_devices;
192};
193
0606e1ab
CC		 194static struct rfkill *wireless_rfkill;
195static struct rfkill *bluetooth_rfkill;
b3c9092b 196static struct rfkill *threeg_rfkill;
0606e1ab 197
745a5d21
CC		 198/* Each low-level interface must define at least some of the following */
199struct wmi_interface {
200 /* The WMI device type */
201 u32 type;
202
203 /* The capabilities this interface provides */
204 u32 capability;
205
206 /* Private data for the current interface */
207 struct acer_data data;
81143522
CC		 208
209 /* debugfs entries associated with this interface */
210 struct acer_debug debug;
745a5d21
CC		 211};
212
213/* The static interface pointer, points to the currently detected interface */
214static struct wmi_interface *interface;
215
216/*
217 * Embedded Controller quirks
218 * Some laptops require us to directly access the EC to either enable or query
219 * features that are not available through WMI.
220 */
221
222struct quirk_entry {
223 u8 wireless;
224 u8 mailled;
9991d9f2 225 s8 brightness;
745a5d21
CC		 226 u8 bluetooth;
227};
228
229static struct quirk_entry *quirks;
230
231static void set_quirks(void)
232{
83097aca
AV		 233 if (!interface)
234 return;
235
745a5d21
CC		 236 if (quirks->mailled)
237 interface->capability |= ACER_CAP_MAILLED;
238
239 if (quirks->brightness)
240 interface->capability |= ACER_CAP_BRIGHTNESS;
241}
242
243static int dmi_matched(const struct dmi_system_id *dmi)
244{
245 quirks = dmi->driver_data;
d53bf0f3 246 return 1;
745a5d21
CC		 247}
248
249static struct quirk_entry quirk_unknown = {
250};
251
9991d9f2
CC		 252static struct quirk_entry quirk_acer_aspire_1520 = {
253 .brightness = -1,
254};
255
745a5d21
CC		 256static struct quirk_entry quirk_acer_travelmate_2490 = {
257 .mailled = 1,
258};
259
260/* This AMW0 laptop has no bluetooth */
261static struct quirk_entry quirk_medion_md_98300 = {
262 .wireless = 1,
263};
264
6f061ab5
CC		 265static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
266 .wireless = 2,
267};
268
a74dd5fd
CC		 269/* The Aspire One has a dummy ACPI-WMI interface - disable it */
270static struct dmi_system_id __devinitdata acer_blacklist[] = {
271 {
272 .ident = "Acer Aspire One (SSD)",
273 .matches = {
274 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
275 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
276 },
277 },
278 {
279 .ident = "Acer Aspire One (HDD)",
280 .matches = {
281 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
282 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
283 },
284 },
285 {}
286};
287
745a5d21 288static struct dmi_system_id acer_quirks[] = {
9991d9f2
CC		 289 {
290 .callback = dmi_matched,
291 .ident = "Acer Aspire 1360",
292 .matches = {
293 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
294 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
295 },
296 .driver_data = &quirk_acer_aspire_1520,
297 },
298 {
299 .callback = dmi_matched,
300 .ident = "Acer Aspire 1520",
301 .matches = {
302 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
303 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
304 },
305 .driver_data = &quirk_acer_aspire_1520,
306 },
745a5d21
CC		 307 {
308 .callback = dmi_matched,
309 .ident = "Acer Aspire 3100",
310 .matches = {
311 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
312 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
313 },
314 .driver_data = &quirk_acer_travelmate_2490,
315 },
ed9cfe98
CC		 316 {
317 .callback = dmi_matched,
318 .ident = "Acer Aspire 3610",
319 .matches = {
320 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
321 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
322 },
323 .driver_data = &quirk_acer_travelmate_2490,
324 },
745a5d21
CC		 325 {
326 .callback = dmi_matched,
327 .ident = "Acer Aspire 5100",
328 .matches = {
329 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
330 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
331 },
332 .driver_data = &quirk_acer_travelmate_2490,
333 },
ed9cfe98
CC		 334 {
335 .callback = dmi_matched,
336 .ident = "Acer Aspire 5610",
337 .matches = {
338 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
339 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
340 },
341 .driver_data = &quirk_acer_travelmate_2490,
342 },
745a5d21
CC		 343 {
344 .callback = dmi_matched,
345 .ident = "Acer Aspire 5630",
346 .matches = {
347 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
348 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
349 },
350 .driver_data = &quirk_acer_travelmate_2490,
351 },
352 {
353 .callback = dmi_matched,
354 .ident = "Acer Aspire 5650",
355 .matches = {
356 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
357 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
358 },
359 .driver_data = &quirk_acer_travelmate_2490,
360 },
361 {
362 .callback = dmi_matched,
363 .ident = "Acer Aspire 5680",
364 .matches = {
365 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
366 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
367 },
368 .driver_data = &quirk_acer_travelmate_2490,
369 },
370 {
371 .callback = dmi_matched,
372 .ident = "Acer Aspire 9110",
373 .matches = {
374 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
375 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
376 },
377 .driver_data = &quirk_acer_travelmate_2490,
378 },
379 {
380 .callback = dmi_matched,
381 .ident = "Acer TravelMate 2490",
382 .matches = {
383 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
384 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
385 },
386 .driver_data = &quirk_acer_travelmate_2490,
387 },
262ee35b
CC		 388 {
389 .callback = dmi_matched,
390 .ident = "Acer TravelMate 4200",
391 .matches = {
392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
394 },
395 .driver_data = &quirk_acer_travelmate_2490,
396 },
6f061ab5
CC		 397 {
398 .callback = dmi_matched,
399 .ident = "Fujitsu Siemens Amilo Li 1718",
400 .matches = {
401 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
402 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
403 },
404 .driver_data = &quirk_fujitsu_amilo_li_1718,
405 },
745a5d21
CC		 406 {
407 .callback = dmi_matched,
408 .ident = "Medion MD 98300",
409 .matches = {
410 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
411 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
412 },
413 .driver_data = &quirk_medion_md_98300,
414 },
415 {}
416};
417
418/* Find which quirks are needed for a particular vendor/ model pair */
419static void find_quirks(void)
420{
421 if (!force_series) {
422 dmi_check_system(acer_quirks);
423 } else if (force_series == 2490) {
424 quirks = &quirk_acer_travelmate_2490;
425 }
426
427 if (quirks == NULL)
428 quirks = &quirk_unknown;
429
430 set_quirks();
431}
432
433/*
434 * General interface convenience methods
435 */
436
437static bool has_cap(u32 cap)
438{
439 if ((interface->capability & cap) != 0)
440 return 1;
441
442 return 0;
443}
444
445/*
446 * AMW0 (V1) interface
447 */
448struct wmab_args {
449 u32 eax;
450 u32 ebx;
451 u32 ecx;
452 u32 edx;
453};
454
455struct wmab_ret {
456 u32 eax;
457 u32 ebx;
458 u32 ecx;
459 u32 edx;
460 u32 eex;
461};
462
463static acpi_status wmab_execute(struct wmab_args *regbuf,
464struct acpi_buffer *result)
465{
466 struct acpi_buffer input;
467 acpi_status status;
468 input.length = sizeof(struct wmab_args);
469 input.pointer = (u8 *)regbuf;
470
471 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
472
473 return status;
474}
475
476static acpi_status AMW0_get_u32(u32 *value, u32 cap,
477struct wmi_interface *iface)
478{
479 int err;
480 u8 result;
481
482 switch (cap) {
483 case ACER_CAP_MAILLED:
484 switch (quirks->mailled) {
485 default:
486 err = ec_read(0xA, &result);
487 if (err)
488 return AE_ERROR;
489 *value = (result >> 7) & 0x1;
490 return AE_OK;
491 }
492 break;
493 case ACER_CAP_WIRELESS:
494 switch (quirks->wireless) {
495 case 1:
496 err = ec_read(0x7B, &result);
497 if (err)
498 return AE_ERROR;
499 *value = result & 0x1;
500 return AE_OK;
6f061ab5
CC		 501 case 2:
502 err = ec_read(0x71, &result);
503 if (err)
504 return AE_ERROR;
505 *value = result & 0x1;
506 return AE_OK;
745a5d21
CC		 507 default:
508 err = ec_read(0xA, &result);
509 if (err)
510 return AE_ERROR;
511 *value = (result >> 2) & 0x1;
512 return AE_OK;
513 }
514 break;
515 case ACER_CAP_BLUETOOTH:
516 switch (quirks->bluetooth) {
517 default:
518 err = ec_read(0xA, &result);
519 if (err)
520 return AE_ERROR;
521 *value = (result >> 4) & 0x1;
522 return AE_OK;
523 }
524 break;
525 case ACER_CAP_BRIGHTNESS:
526 switch (quirks->brightness) {
527 default:
528 err = ec_read(0x83, &result);
529 if (err)
530 return AE_ERROR;
531 *value = result;
532 return AE_OK;
533 }
534 break;
535 default:
08237974 536 return AE_ERROR;
745a5d21
CC		 537 }
538 return AE_OK;
539}
540
541static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
542{
543 struct wmab_args args;
544
545 args.eax = ACER_AMW0_WRITE;
546 args.ebx = value ? (1<<8) : 0;
547 args.ecx = args.edx = 0;
548
549 switch (cap) {
550 case ACER_CAP_MAILLED:
551 if (value > 1)
552 return AE_BAD_PARAMETER;
553 args.ebx |= ACER_AMW0_MAILLED_MASK;
554 break;
555 case ACER_CAP_WIRELESS:
556 if (value > 1)
557 return AE_BAD_PARAMETER;
558 args.ebx |= ACER_AMW0_WIRELESS_MASK;
559 break;
560 case ACER_CAP_BLUETOOTH:
561 if (value > 1)
562 return AE_BAD_PARAMETER;
563 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
564 break;
565 case ACER_CAP_BRIGHTNESS:
566 if (value > max_brightness)
567 return AE_BAD_PARAMETER;
568 switch (quirks->brightness) {
745a5d21 569 default:
4609d029
CC		 570 return ec_write(0x83, value);
571 break;
745a5d21
CC		 572 }
573 default:
08237974 574 return AE_ERROR;
745a5d21
CC		 575 }
576
577 /* Actually do the set */
578 return wmab_execute(&args, NULL);
579}
580
581static acpi_status AMW0_find_mailled(void)
582{
583 struct wmab_args args;
584 struct wmab_ret ret;
585 acpi_status status = AE_OK;
586 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
587 union acpi_object *obj;
588
589 args.eax = 0x86;
590 args.ebx = args.ecx = args.edx = 0;
591
592 status = wmab_execute(&args, &out);
593 if (ACPI_FAILURE(status))
594 return status;
595
596 obj = (union acpi_object *) out.pointer;
597 if (obj && obj->type == ACPI_TYPE_BUFFER &&
598 obj->buffer.length == sizeof(struct wmab_ret)) {
599 ret = *((struct wmab_ret *) obj->buffer.pointer);
600 } else {
7677fbdf 601 kfree(out.pointer);
745a5d21
CC		 602 return AE_ERROR;
603 }
604
605 if (ret.eex & 0x1)
606 interface->capability |= ACER_CAP_MAILLED;
607
608 kfree(out.pointer);
609
610 return AE_OK;
611}
612
613static acpi_status AMW0_set_capabilities(void)
614{
615 struct wmab_args args;
616 struct wmab_ret ret;
7677fbdf 617 acpi_status status;
745a5d21
CC		 618 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
619 union acpi_object *obj;
620
5753dd53
CC		 621 /*
622 * On laptops with this strange GUID (non Acer), normal probing doesn't
623 * work.
624 */
625 if (wmi_has_guid(AMW0_GUID2)) {
626 interface->capability |= ACER_CAP_WIRELESS;
627 return AE_OK;
628 }
629
745a5d21
CC		 630 args.eax = ACER_AMW0_WRITE;
631 args.ecx = args.edx = 0;
632
633 args.ebx = 0xa2 << 8;
634 args.ebx |= ACER_AMW0_WIRELESS_MASK;
635
636 status = wmab_execute(&args, &out);
637 if (ACPI_FAILURE(status))
638 return status;
639
7677fbdf 640 obj = out.pointer;
745a5d21
CC		 641 if (obj && obj->type == ACPI_TYPE_BUFFER &&
642 obj->buffer.length == sizeof(struct wmab_ret)) {
643 ret = *((struct wmab_ret *) obj->buffer.pointer);
644 } else {
7677fbdf
AL		 645 status = AE_ERROR;
646 goto out;
745a5d21
CC		 647 }
648
649 if (ret.eax & 0x1)
650 interface->capability |= ACER_CAP_WIRELESS;
651
652 args.ebx = 2 << 8;
653 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
654
7677fbdf
AL		 655 /*
656 * It's ok to use existing buffer for next wmab_execute call.
657 * But we need to kfree(out.pointer) if next wmab_execute fail.
658 */
745a5d21
CC		 659 status = wmab_execute(&args, &out);
660 if (ACPI_FAILURE(status))
7677fbdf 661 goto out;
745a5d21
CC		 662
663 obj = (union acpi_object *) out.pointer;
664 if (obj && obj->type == ACPI_TYPE_BUFFER
665 && obj->buffer.length == sizeof(struct wmab_ret)) {
666 ret = *((struct wmab_ret *) obj->buffer.pointer);
667 } else {
7677fbdf
AL		 668 status = AE_ERROR;
669 goto out;
745a5d21
CC		 670 }
671
672 if (ret.eax & 0x1)
673 interface->capability |= ACER_CAP_BLUETOOTH;
674
745a5d21
CC		 675 /*
676 * This appears to be safe to enable, since all Wistron based laptops
677 * appear to use the same EC register for brightness, even if they
678 * differ for wireless, etc
679 */
9991d9f2
CC		 680 if (quirks->brightness >= 0)
681 interface->capability |= ACER_CAP_BRIGHTNESS;
745a5d21 682
7677fbdf
AL		 683 status = AE_OK;
684out:
685 kfree(out.pointer);
686 return status;
745a5d21
CC		 687}
688
689static struct wmi_interface AMW0_interface = {
690 .type = ACER_AMW0,
691};
692
693static struct wmi_interface AMW0_V2_interface = {
694 .type = ACER_AMW0_V2,
695};
696
697/*
698 * New interface (The WMID interface)
699 */
700static acpi_status
701WMI_execute_u32(u32 method_id, u32 in, u32 *out)
702{
703 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
704 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
705 union acpi_object *obj;
706 u32 tmp;
707 acpi_status status;
708
709 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
710
711 if (ACPI_FAILURE(status))
712 return status;
713
714 obj = (union acpi_object *) result.pointer;
715 if (obj && obj->type == ACPI_TYPE_BUFFER &&
716 obj->buffer.length == sizeof(u32)) {
717 tmp = *((u32 *) obj->buffer.pointer);
718 } else {
719 tmp = 0;
720 }
721
722 if (out)
723 *out = tmp;
724
725 kfree(result.pointer);
726
727 return status;
728}
729
730static acpi_status WMID_get_u32(u32 *value, u32 cap,
731struct wmi_interface *iface)
732{
733 acpi_status status;
734 u8 tmp;
735 u32 result, method_id = 0;
736
737 switch (cap) {
738 case ACER_CAP_WIRELESS:
739 method_id = ACER_WMID_GET_WIRELESS_METHODID;
740 break;
741 case ACER_CAP_BLUETOOTH:
742 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
743 break;
744 case ACER_CAP_BRIGHTNESS:
745 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
746 break;
747 case ACER_CAP_THREEG:
748 method_id = ACER_WMID_GET_THREEG_METHODID;
749 break;
750 case ACER_CAP_MAILLED:
751 if (quirks->mailled == 1) {
752 ec_read(0x9f, &tmp);
753 *value = tmp & 0x1;
754 return 0;
755 }
756 default:
08237974 757 return AE_ERROR;
745a5d21
CC		 758 }
759 status = WMI_execute_u32(method_id, 0, &result);
760
761 if (ACPI_SUCCESS(status))
762 *value = (u8)result;
763
764 return status;
765}
766
767static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
768{
769 u32 method_id = 0;
770 char param;
771
772 switch (cap) {
773 case ACER_CAP_BRIGHTNESS:
774 if (value > max_brightness)
775 return AE_BAD_PARAMETER;
776 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
777 break;
778 case ACER_CAP_WIRELESS:
779 if (value > 1)
780 return AE_BAD_PARAMETER;
781 method_id = ACER_WMID_SET_WIRELESS_METHODID;
782 break;
783 case ACER_CAP_BLUETOOTH:
784 if (value > 1)
785 return AE_BAD_PARAMETER;
786 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
787 break;
788 case ACER_CAP_THREEG:
789 if (value > 1)
790 return AE_BAD_PARAMETER;
791 method_id = ACER_WMID_SET_THREEG_METHODID;
792 break;
793 case ACER_CAP_MAILLED:
794 if (value > 1)
795 return AE_BAD_PARAMETER;
796 if (quirks->mailled == 1) {
797 param = value ? 0x92 : 0x93;
181d683d 798 i8042_lock_chip();
745a5d21 799 i8042_command(&param, 0x1059);
181d683d 800 i8042_unlock_chip();
745a5d21
CC		 801 return 0;
802 }
803 break;
804 default:
08237974 805 return AE_ERROR;
745a5d21
CC		 806 }
807 return WMI_execute_u32(method_id, (u32)value, NULL);
808}
809
810static acpi_status WMID_set_capabilities(void)
811{
812 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
813 union acpi_object *obj;
814 acpi_status status;
815 u32 devices;
816
817 status = wmi_query_block(WMID_GUID2, 1, &out);
818 if (ACPI_FAILURE(status))
819 return status;
820
821 obj = (union acpi_object *) out.pointer;
822 if (obj && obj->type == ACPI_TYPE_BUFFER &&
823 obj->buffer.length == sizeof(u32)) {
824 devices = *((u32 *) obj->buffer.pointer);
825 } else {
66904863 826 kfree(out.pointer);
745a5d21
CC		 827 return AE_ERROR;
828 }
829
830 /* Not sure on the meaning of the relevant bits yet to detect these */
831 interface->capability |= ACER_CAP_WIRELESS;
832 interface->capability |= ACER_CAP_THREEG;
833
834 /* WMID always provides brightness methods */
835 interface->capability |= ACER_CAP_BRIGHTNESS;
836
837 if (devices & 0x10)
838 interface->capability |= ACER_CAP_BLUETOOTH;
839
840 if (!(devices & 0x20))
841 max_brightness = 0x9;
842
66904863 843 kfree(out.pointer);
745a5d21
CC		 844 return status;
845}
846
847static struct wmi_interface wmid_interface = {
848 .type = ACER_WMID,
849};
850
851/*
852 * Generic Device (interface-independent)
853 */
854
855static acpi_status get_u32(u32 *value, u32 cap)
856{
08237974 857 acpi_status status = AE_ERROR;
745a5d21
CC		 858
859 switch (interface->type) {
860 case ACER_AMW0:
861 status = AMW0_get_u32(value, cap, interface);
862 break;
863 case ACER_AMW0_V2:
864 if (cap == ACER_CAP_MAILLED) {
865 status = AMW0_get_u32(value, cap, interface);
866 break;
867 }
868 case ACER_WMID:
869 status = WMID_get_u32(value, cap, interface);
870 break;
871 }
872
873 return status;
874}
875
876static acpi_status set_u32(u32 value, u32 cap)
877{
5c742b45
CC		 878 acpi_status status;
879
745a5d21
CC		 880 if (interface->capability & cap) {
881 switch (interface->type) {
882 case ACER_AMW0:
883 return AMW0_set_u32(value, cap, interface);
884 case ACER_AMW0_V2:
5c742b45
CC		 885 if (cap == ACER_CAP_MAILLED)
886 return AMW0_set_u32(value, cap, interface);
887
888 /*
889 * On some models, some WMID methods don't toggle
890 * properly. For those cases, we want to run the AMW0
891 * method afterwards to be certain we've really toggled
892 * the device state.
893 */
894 if (cap == ACER_CAP_WIRELESS ||
895 cap == ACER_CAP_BLUETOOTH) {
896 status = WMID_set_u32(value, cap, interface);
897 if (ACPI_FAILURE(status))
898 return status;
899
900 return AMW0_set_u32(value, cap, interface);
901 }
745a5d21
CC		 902 case ACER_WMID:
903 return WMID_set_u32(value, cap, interface);
904 default:
905 return AE_BAD_PARAMETER;
906 }
907 }
908 return AE_BAD_PARAMETER;
909}
910
911static void __init acer_commandline_init(void)
912{
913 /*
914 * These will all fail silently if the value given is invalid, or the
915 * capability isn't available on the given interface
916 */
917 set_u32(mailled, ACER_CAP_MAILLED);
745a5d21
CC		 918 set_u32(threeg, ACER_CAP_THREEG);
919 set_u32(brightness, ACER_CAP_BRIGHTNESS);
920}
921
922/*
923 * LED device (Mail LED only, no other LEDs known yet)
924 */
925static void mail_led_set(struct led_classdev *led_cdev,
926enum led_brightness value)
927{
928 set_u32(value, ACER_CAP_MAILLED);
929}
930
931static struct led_classdev mail_led = {
343c0042 932 .name = "acer-wmi::mail",
745a5d21
CC		 933 .brightness_set = mail_led_set,
934};
935
7560e385 936static int __devinit acer_led_init(struct device *dev)
745a5d21
CC		 937{
938 return led_classdev_register(dev, &mail_led);
939}
940
941static void acer_led_exit(void)
942{
943 led_classdev_unregister(&mail_led);
944}
945
946/*
947 * Backlight device
948 */
949static struct backlight_device *acer_backlight_device;
950
951static int read_brightness(struct backlight_device *bd)
952{
953 u32 value;
954 get_u32(&value, ACER_CAP_BRIGHTNESS);
955 return value;
956}
957
958static int update_bl_status(struct backlight_device *bd)
959{
f2b585b4
CC		 960 int intensity = bd->props.brightness;
961
962 if (bd->props.power != FB_BLANK_UNBLANK)
963 intensity = 0;
964 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
965 intensity = 0;
966
967 set_u32(intensity, ACER_CAP_BRIGHTNESS);
968
745a5d21
CC		 969 return 0;
970}
971
972static struct backlight_ops acer_bl_ops = {
973 .get_brightness = read_brightness,
974 .update_status = update_bl_status,
975};
976
7560e385 977static int __devinit acer_backlight_init(struct device *dev)
745a5d21 978{
a19a6ee6 979 struct backlight_properties props;
745a5d21
CC		 980 struct backlight_device *bd;
981
a19a6ee6
MG		 982 memset(&props, 0, sizeof(struct backlight_properties));
983 props.max_brightness = max_brightness;
984 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
985 &props);
745a5d21
CC		 986 if (IS_ERR(bd)) {
987 printk(ACER_ERR "Could not register Acer backlight device\n");
988 acer_backlight_device = NULL;
989 return PTR_ERR(bd);
990 }
991
992 acer_backlight_device = bd;
993
f2b585b4 994 bd->props.power = FB_BLANK_UNBLANK;
6f6ef82c 995 bd->props.brightness = read_brightness(bd);
745a5d21
CC		 996 backlight_update_status(bd);
997 return 0;
998}
999
7560e385 1000static void acer_backlight_exit(void)
745a5d21
CC		 1001{
1002 backlight_device_unregister(acer_backlight_device);
1003}
1004
b3c9092b
LCY		 1005static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1006{
1007 struct wmid3_gds_return_value return_value;
1008 acpi_status status;
1009 union acpi_object *obj;
1010 struct wmid3_gds_input_param params = {
1011 .function_num = 0x1,
1012 .hotkey_number = 0x01,
1013 .devices = device,
1014 };
1015 struct acpi_buffer input = {
1016 sizeof(struct wmid3_gds_input_param),
1017 &params
1018 };
1019 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1020
1021 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1022 if (ACPI_FAILURE(status))
1023 return status;
1024
1025 obj = output.pointer;
1026
1027 if (!obj)
1028 return AE_ERROR;
1029 else if (obj->type != ACPI_TYPE_BUFFER) {
1030 kfree(obj);
1031 return AE_ERROR;
1032 }
1033 if (obj->buffer.length != 8) {
1034 printk(ACER_WARNING "Unknown buffer length %d\n",
1035 obj->buffer.length);
1036 kfree(obj);
1037 return AE_ERROR;
1038 }
1039
1040 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1041 kfree(obj);
1042
1043 if (return_value.error_code || return_value.ec_return_value)
1044 printk(ACER_WARNING "Get Device Status failed: "
1045 "0x%x - 0x%x\n", return_value.error_code,
1046 return_value.ec_return_value);
1047 else
1048 *value = !!(return_value.devices & device);
1049
1050 return status;
1051}
1052
0606e1ab
CC		 1053/*
1054 * Rfkill devices
1055 */
0606e1ab
CC		 1056static void acer_rfkill_update(struct work_struct *ignored);
1057static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1058static void acer_rfkill_update(struct work_struct *ignored)
1059{
1060 u32 state;
1061 acpi_status status;
1062
1063 status = get_u32(&state, ACER_CAP_WIRELESS);
1064 if (ACPI_SUCCESS(status))
a878417c 1065 rfkill_set_sw_state(wireless_rfkill, !state);
0606e1ab
CC		 1066
1067 if (has_cap(ACER_CAP_BLUETOOTH)) {
1068 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1069 if (ACPI_SUCCESS(status))
a878417c 1070 rfkill_set_sw_state(bluetooth_rfkill, !state);
0606e1ab
CC		 1071 }
1072
b3c9092b
LCY		 1073 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1074 status = wmid3_get_device_status(&state,
1075 ACER_WMID3_GDS_THREEG);
1076 if (ACPI_SUCCESS(status))
1077 rfkill_set_sw_state(threeg_rfkill, !state);
1078 }
1079
ae3a1b46 1080 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
0606e1ab
CC		 1081}
1082
19d337df 1083static int acer_rfkill_set(void *data, bool blocked)
0606e1ab
CC		 1084{
1085 acpi_status status;
19d337df 1086 u32 cap = (unsigned long)data;
ed5c8ef3 1087 status = set_u32(!blocked, cap);
0606e1ab
CC		 1088 if (ACPI_FAILURE(status))
1089 return -ENODEV;
1090 return 0;
1091}
1092
19d337df
JB		 1093static const struct rfkill_ops acer_rfkill_ops = {
1094 .set_block = acer_rfkill_set,
1095};
1096
1097static struct rfkill *acer_rfkill_register(struct device *dev,
1098 enum rfkill_type type,
1099 char *name, u32 cap)
0606e1ab
CC		 1100{
1101 int err;
0606e1ab
CC		 1102 struct rfkill *rfkill_dev;
1103
19d337df
JB		 1104 rfkill_dev = rfkill_alloc(name, dev, type,
1105 &acer_rfkill_ops,
1106 (void *)(unsigned long)cap);
0606e1ab
CC		 1107 if (!rfkill_dev)
1108 return ERR_PTR(-ENOMEM);
0606e1ab
CC		 1109
1110 err = rfkill_register(rfkill_dev);
1111 if (err) {
19d337df 1112 rfkill_destroy(rfkill_dev);
0606e1ab
CC		 1113 return ERR_PTR(err);
1114 }
1115 return rfkill_dev;
1116}
1117
1118static int acer_rfkill_init(struct device *dev)
1119{
1120 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1121 "acer-wireless", ACER_CAP_WIRELESS);
1122 if (IS_ERR(wireless_rfkill))
1123 return PTR_ERR(wireless_rfkill);
1124
1125 if (has_cap(ACER_CAP_BLUETOOTH)) {
1126 bluetooth_rfkill = acer_rfkill_register(dev,
1127 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1128 ACER_CAP_BLUETOOTH);
1129 if (IS_ERR(bluetooth_rfkill)) {
0606e1ab 1130 rfkill_unregister(wireless_rfkill);
19d337df 1131 rfkill_destroy(wireless_rfkill);
0606e1ab
CC		 1132 return PTR_ERR(bluetooth_rfkill);
1133 }
1134 }
1135
b3c9092b
LCY		 1136 if (has_cap(ACER_CAP_THREEG)) {
1137 threeg_rfkill = acer_rfkill_register(dev,
1138 RFKILL_TYPE_WWAN, "acer-threeg",
1139 ACER_CAP_THREEG);
1140 if (IS_ERR(threeg_rfkill)) {
1141 rfkill_unregister(wireless_rfkill);
1142 rfkill_destroy(wireless_rfkill);
1143 rfkill_unregister(bluetooth_rfkill);
1144 rfkill_destroy(bluetooth_rfkill);
1145 return PTR_ERR(threeg_rfkill);
1146 }
1147 }
1148
ae3a1b46 1149 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
0606e1ab
CC		 1150
1151 return 0;
1152}
1153
1154static void acer_rfkill_exit(void)
1155{
1156 cancel_delayed_work_sync(&acer_rfkill_work);
19d337df 1157
0606e1ab 1158 rfkill_unregister(wireless_rfkill);
19d337df
JB		 1159 rfkill_destroy(wireless_rfkill);
1160
0606e1ab 1161 if (has_cap(ACER_CAP_BLUETOOTH)) {
0606e1ab 1162 rfkill_unregister(bluetooth_rfkill);
19d337df 1163 rfkill_destroy(bluetooth_rfkill);
0606e1ab 1164 }
b3c9092b
LCY		 1165
1166 if (has_cap(ACER_CAP_THREEG)) {
1167 rfkill_unregister(threeg_rfkill);
1168 rfkill_destroy(threeg_rfkill);
1169 }
0606e1ab
CC		 1170 return;
1171}
1172
745a5d21 1173/*
7d9a06de 1174 * sysfs interface
745a5d21 1175 */
7d9a06de
CC		 1176static ssize_t show_bool_threeg(struct device *dev,
1177 struct device_attribute *attr, char *buf)
1178{
745a5d21 1179 u32 result; \
b3c9092b
LCY		 1180 acpi_status status;
1181 if (wmi_has_guid(WMID_GUID3))
1182 status = wmid3_get_device_status(&result,
1183 ACER_WMID3_GDS_THREEG);
1184 else
1185 status = get_u32(&result, ACER_CAP_THREEG);
7d9a06de
CC		 1186 if (ACPI_SUCCESS(status))
1187 return sprintf(buf, "%u\n", result);
1188 return sprintf(buf, "Read error\n");
1189}
1190
1191static ssize_t set_bool_threeg(struct device *dev,
1192 struct device_attribute *attr, const char *buf, size_t count)
1193{
1194 u32 tmp = simple_strtoul(buf, NULL, 10);
1195 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1196 if (ACPI_FAILURE(status))
1197 return -EINVAL;
1198 return count;
1199}
1200static DEVICE_ATTR(threeg, S_IWUGO | S_IRUGO | S_IWUSR, show_bool_threeg,
1201 set_bool_threeg);
745a5d21 1202
745a5d21
CC		 1203static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1204 char *buf)
1205{
1206 switch (interface->type) {
1207 case ACER_AMW0:
1208 return sprintf(buf, "AMW0\n");
1209 case ACER_AMW0_V2:
1210 return sprintf(buf, "AMW0 v2\n");
1211 case ACER_WMID:
1212 return sprintf(buf, "WMID\n");
1213 default:
1214 return sprintf(buf, "Error!\n");
1215 }
1216}
1217
370525df 1218static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
745a5d21 1219
3fdca87d
LCY		 1220static void acer_wmi_notify(u32 value, void *context)
1221{
1222 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1223 union acpi_object *obj;
1224 struct event_return_value return_value;
1225 acpi_status status;
1226
1227 status = wmi_get_event_data(value, &response);
1228 if (status != AE_OK) {
1229 printk(ACER_WARNING "bad event status 0x%x\n", status);
1230 return;
1231 }
1232
1233 obj = (union acpi_object *)response.pointer;
1234
1235 if (!obj)
1236 return;
1237 if (obj->type != ACPI_TYPE_BUFFER) {
1238 printk(ACER_WARNING "Unknown response received %d\n",
1239 obj->type);
1240 kfree(obj);
1241 return;
1242 }
1243 if (obj->buffer.length != 8) {
1244 printk(ACER_WARNING "Unknown buffer length %d\n",
1245 obj->buffer.length);
1246 kfree(obj);
1247 return;
1248 }
1249
1250 return_value = *((struct event_return_value *)obj->buffer.pointer);
1251 kfree(obj);
1252
1253 switch (return_value.function) {
1254 case WMID_HOTKEY_EVENT:
1255 if (!sparse_keymap_report_event(acer_wmi_input_dev,
1256 return_value.key_num, 1, true))
1257 printk(ACER_WARNING "Unknown key number - 0x%x\n",
1258 return_value.key_num);
1259 break;
1260 default:
1261 printk(ACER_WARNING "Unknown function number - %d - %d\n",
1262 return_value.function, return_value.key_num);
1263 break;
1264 }
1265}
1266
1267static int __init acer_wmi_input_setup(void)
1268{
1269 acpi_status status;
1270 int err;
1271
1272 acer_wmi_input_dev = input_allocate_device();
1273 if (!acer_wmi_input_dev)
1274 return -ENOMEM;
1275
1276 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1277 acer_wmi_input_dev->phys = "wmi/input0";
1278 acer_wmi_input_dev->id.bustype = BUS_HOST;
1279
1280 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1281 if (err)
1282 goto err_free_dev;
1283
1284 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1285 acer_wmi_notify, NULL);
1286 if (ACPI_FAILURE(status)) {
1287 err = -EIO;
1288 goto err_free_keymap;
1289 }
1290
1291 err = input_register_device(acer_wmi_input_dev);
1292 if (err)
1293 goto err_uninstall_notifier;
1294
1295 return 0;
1296
1297err_uninstall_notifier:
1298 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1299err_free_keymap:
1300 sparse_keymap_free(acer_wmi_input_dev);
1301err_free_dev:
1302 input_free_device(acer_wmi_input_dev);
1303 return err;
1304}
1305
1306static void acer_wmi_input_destroy(void)
1307{
1308 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1309 sparse_keymap_free(acer_wmi_input_dev);
1310 input_unregister_device(acer_wmi_input_dev);
1311}
1312
81143522
CC		 1313/*
1314 * debugfs functions
1315 */
1316static u32 get_wmid_devices(void)
1317{
1318 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1319 union acpi_object *obj;
1320 acpi_status status;
66904863 1321 u32 devices = 0;
81143522
CC		 1322
1323 status = wmi_query_block(WMID_GUID2, 1, &out);
1324 if (ACPI_FAILURE(status))
1325 return 0;
1326
1327 obj = (union acpi_object *) out.pointer;
1328 if (obj && obj->type == ACPI_TYPE_BUFFER &&
1329 obj->buffer.length == sizeof(u32)) {
66904863 1330 devices = *((u32 *) obj->buffer.pointer);
81143522 1331 }
66904863
AL		 1332
1333 kfree(out.pointer);
1334 return devices;
81143522
CC		 1335}
1336
745a5d21
CC		 1337/*
1338 * Platform device
1339 */
1340static int __devinit acer_platform_probe(struct platform_device *device)
1341{
1342 int err;
1343
1344 if (has_cap(ACER_CAP_MAILLED)) {
1345 err = acer_led_init(&device->dev);
1346 if (err)
1347 goto error_mailled;
1348 }
1349
1350 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1351 err = acer_backlight_init(&device->dev);
1352 if (err)
1353 goto error_brightness;
1354 }
1355
0606e1ab 1356 err = acer_rfkill_init(&device->dev);
350e3290
AW		 1357 if (err)
1358 goto error_rfkill;
0606e1ab
CC		 1359
1360 return err;
745a5d21 1361
350e3290
AW		 1362error_rfkill:
1363 if (has_cap(ACER_CAP_BRIGHTNESS))
1364 acer_backlight_exit();
745a5d21 1365error_brightness:
350e3290
AW		 1366 if (has_cap(ACER_CAP_MAILLED))
1367 acer_led_exit();
745a5d21
CC		 1368error_mailled:
1369 return err;
1370}
1371
1372static int acer_platform_remove(struct platform_device *device)
1373{
1374 if (has_cap(ACER_CAP_MAILLED))
1375 acer_led_exit();
1376 if (has_cap(ACER_CAP_BRIGHTNESS))
1377 acer_backlight_exit();
0606e1ab
CC		 1378
1379 acer_rfkill_exit();
745a5d21
CC		 1380 return 0;
1381}
1382
1383static int acer_platform_suspend(struct platform_device *dev,
1384pm_message_t state)
1385{
1386 u32 value;
1387 struct acer_data *data = &interface->data;
1388
1389 if (!data)
1390 return -ENOMEM;
1391
745a5d21
CC		 1392 if (has_cap(ACER_CAP_MAILLED)) {
1393 get_u32(&value, ACER_CAP_MAILLED);
1394 data->mailled = value;
1395 }
1396
1397 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1398 get_u32(&value, ACER_CAP_BRIGHTNESS);
1399 data->brightness = value;
1400 }
1401
1402 return 0;
1403}
1404
1405static int acer_platform_resume(struct platform_device *device)
1406{
1407 struct acer_data *data = &interface->data;
1408
1409 if (!data)
1410 return -ENOMEM;
1411
745a5d21
CC		 1412 if (has_cap(ACER_CAP_MAILLED))
1413 set_u32(data->mailled, ACER_CAP_MAILLED);
1414
1415 if (has_cap(ACER_CAP_BRIGHTNESS))
1416 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
1417
1418 return 0;
1419}
1420
1421static struct platform_driver acer_platform_driver = {
1422 .driver = {
1423 .name = "acer-wmi",
1424 .owner = THIS_MODULE,
1425 },
1426 .probe = acer_platform_probe,
1427 .remove = acer_platform_remove,
1428 .suspend = acer_platform_suspend,
1429 .resume = acer_platform_resume,
1430};
1431
1432static struct platform_device *acer_platform_device;
1433
1434static int remove_sysfs(struct platform_device *device)
1435{
745a5d21
CC		 1436 if (has_cap(ACER_CAP_THREEG))
1437 device_remove_file(&device->dev, &dev_attr_threeg);
1438
1439 device_remove_file(&device->dev, &dev_attr_interface);
1440
1441 return 0;
1442}
1443
1444static int create_sysfs(void)
1445{
1446 int retval = -ENOMEM;
1447
745a5d21
CC		 1448 if (has_cap(ACER_CAP_THREEG)) {
1449 retval = device_create_file(&acer_platform_device->dev,
1450 &dev_attr_threeg);
1451 if (retval)
1452 goto error_sysfs;
1453 }
1454
1455 retval = device_create_file(&acer_platform_device->dev,
1456 &dev_attr_interface);
1457 if (retval)
1458 goto error_sysfs;
1459
1460 return 0;
1461
1462error_sysfs:
1463 remove_sysfs(acer_platform_device);
1464 return retval;
1465}
1466
81143522
CC		 1467static void remove_debugfs(void)
1468{
1469 debugfs_remove(interface->debug.devices);
1470 debugfs_remove(interface->debug.root);
1471}
1472
1473static int create_debugfs(void)
1474{
1475 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
1476 if (!interface->debug.root) {
1477 printk(ACER_ERR "Failed to create debugfs directory");
1478 return -ENOMEM;
1479 }
1480
1481 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
1482 interface->debug.root,
1483 &interface->debug.wmid_devices);
1484 if (!interface->debug.devices)
1485 goto error_debugfs;
1486
1487 return 0;
1488
1489error_debugfs:
39dbbb45 1490 remove_debugfs();
81143522
CC		 1491 return -ENOMEM;
1492}
1493
745a5d21
CC		 1494static int __init acer_wmi_init(void)
1495{
1496 int err;
1497
860f0c6b 1498 printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n");
745a5d21 1499
a74dd5fd
CC		 1500 if (dmi_check_system(acer_blacklist)) {
1501 printk(ACER_INFO "Blacklisted hardware detected - "
1502 "not loading\n");
1503 return -ENODEV;
1504 }
1505
9991d9f2
CC		 1506 find_quirks();
1507
745a5d21
CC		 1508 /*
1509 * Detect which ACPI-WMI interface we're using.
1510 */
1511 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1512 interface = &AMW0_V2_interface;
1513
1514 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1515 interface = &wmid_interface;
1516
1517 if (wmi_has_guid(WMID_GUID2) && interface) {
1518 if (ACPI_FAILURE(WMID_set_capabilities())) {
8d039bc7
CC		 1519 printk(ACER_ERR "Unable to detect available WMID "
1520 "devices\n");
745a5d21
CC		 1521 return -ENODEV;
1522 }
1523 } else if (!wmi_has_guid(WMID_GUID2) && interface) {
8d039bc7 1524 printk(ACER_ERR "No WMID device detection method found\n");
745a5d21
CC		 1525 return -ENODEV;
1526 }
1527
1528 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
1529 interface = &AMW0_interface;
1530
1531 if (ACPI_FAILURE(AMW0_set_capabilities())) {
8d039bc7
CC		 1532 printk(ACER_ERR "Unable to detect available AMW0 "
1533 "devices\n");
745a5d21
CC		 1534 return -ENODEV;
1535 }
1536 }
1537
9b963c40
CC		 1538 if (wmi_has_guid(AMW0_GUID1))
1539 AMW0_find_mailled();
745a5d21 1540
745a5d21 1541 if (!interface) {
af9902e1 1542 printk(ACER_INFO "No or unsupported WMI interface, unable to "
8d039bc7 1543 "load\n");
745a5d21
CC		 1544 return -ENODEV;
1545 }
1546
83097aca
AV		 1547 set_quirks();
1548
1ba869ec 1549 if (acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
febf2d95
TR		 1550 interface->capability &= ~ACER_CAP_BRIGHTNESS;
1551 printk(ACER_INFO "Brightness must be controlled by "
1552 "generic video driver\n");
1553 }
1554
3fdca87d
LCY		 1555 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
1556 err = acer_wmi_input_setup();
1557 if (err)
1558 return err;
1559 }
1560
1c79632b
AL		 1561 err = platform_driver_register(&acer_platform_driver);
1562 if (err) {
745a5d21
CC		 1563 printk(ACER_ERR "Unable to register platform driver.\n");
1564 goto error_platform_register;
1565 }
1c79632b 1566
745a5d21 1567 acer_platform_device = platform_device_alloc("acer-wmi", -1);
1c79632b
AL		 1568 if (!acer_platform_device) {
1569 err = -ENOMEM;
1570 goto error_device_alloc;
1571 }
1572
1573 err = platform_device_add(acer_platform_device);
1574 if (err)
1575 goto error_device_add;
745a5d21
CC		 1576
1577 err = create_sysfs();
1578 if (err)
1c79632b 1579 goto error_create_sys;
745a5d21 1580
81143522
CC		 1581 if (wmi_has_guid(WMID_GUID2)) {
1582 interface->debug.wmid_devices = get_wmid_devices();
1583 err = create_debugfs();
1584 if (err)
1c79632b 1585 goto error_create_debugfs;
81143522
CC		 1586 }
1587
745a5d21
CC		 1588 /* Override any initial settings with values from the commandline */
1589 acer_commandline_init();
1590
1591 return 0;
1592
1c79632b
AL		 1593error_create_debugfs:
1594 remove_sysfs(acer_platform_device);
1595error_create_sys:
1596 platform_device_del(acer_platform_device);
1597error_device_add:
1598 platform_device_put(acer_platform_device);
1599error_device_alloc:
1600 platform_driver_unregister(&acer_platform_driver);
745a5d21 1601error_platform_register:
3fdca87d
LCY		 1602 if (wmi_has_guid(ACERWMID_EVENT_GUID))
1603 acer_wmi_input_destroy();
1604
1c79632b 1605 return err;
745a5d21
CC		 1606}
1607
1608static void __exit acer_wmi_exit(void)
1609{
3fdca87d
LCY		 1610 if (wmi_has_guid(ACERWMID_EVENT_GUID))
1611 acer_wmi_input_destroy();
1612
745a5d21 1613 remove_sysfs(acer_platform_device);
39dbbb45 1614 remove_debugfs();
97ba0af0 1615 platform_device_unregister(acer_platform_device);
745a5d21
CC		 1616 platform_driver_unregister(&acer_platform_driver);
1617
1618 printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n");
1619 return;
1620}
1621
1622module_init(acer_wmi_init);
1623module_exit(acer_wmi_exit);
kernel source for telekom puls (alcatel/mediatek)