2 * Acer WMI Laptop Extras
4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
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.
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.
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
25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
33 #include <linux/backlight.h>
34 #include <linux/leds.h>
35 #include <linux/platform_device.h>
36 #include <linux/acpi.h>
37 #include <linux/i8042.h>
38 #include <linux/rfkill.h>
39 #include <linux/workqueue.h>
40 #include <linux/debugfs.h>
41 #include <linux/slab.h>
42 #include <linux/input.h>
43 #include <linux/input/sparse-keymap.h>
44 #include <acpi/video.h>
46 MODULE_AUTHOR("Carlos Corbacho");
47 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
48 MODULE_LICENSE("GPL");
52 * Meaning is unknown - this number is required for writing to ACPI for AMW0
53 * (it's also used in acerhk when directly accessing the BIOS)
55 #define ACER_AMW0_WRITE 0x9610
58 * Bit masks for the AMW0 interface
60 #define ACER_AMW0_WIRELESS_MASK 0x35
61 #define ACER_AMW0_BLUETOOTH_MASK 0x34
62 #define ACER_AMW0_MAILLED_MASK 0x31
65 * Method IDs for WMID interface
67 #define ACER_WMID_GET_WIRELESS_METHODID 1
68 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
69 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
70 #define ACER_WMID_SET_WIRELESS_METHODID 4
71 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
72 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
73 #define ACER_WMID_GET_THREEG_METHODID 10
74 #define ACER_WMID_SET_THREEG_METHODID 11
77 * Acer ACPI method GUIDs
79 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
80 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
81 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
82 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
83 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
86 * Acer ACPI event GUIDs
88 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
90 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
91 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
92 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
94 enum acer_wmi_event_ids {
95 WMID_HOTKEY_EVENT = 0x1,
96 WMID_ACCEL_EVENT = 0x5,
99 static const struct key_entry acer_wmi_keymap[] = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
134 static struct input_dev *acer_wmi_input_dev;
135 static struct input_dev *acer_wmi_accel_dev;
137 struct event_return_value {
142 } __attribute__((packed));
145 * GUID3 Get Device Status device flags
147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
153 struct lm_input_params {
154 u8 function_num; /* Function Number */
155 u16 commun_devices; /* Communication type devices default status */
156 u16 devices; /* Other type devices default status */
157 u8 lm_status; /* Launch Manager Status */
159 } __attribute__((packed));
161 struct lm_return_value {
162 u8 error_code; /* Error Code */
163 u8 ec_return_value; /* EC Return Value */
165 } __attribute__((packed));
167 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
168 u8 function_num; /* Function Number */
169 u8 hotkey_number; /* Hotkey Number */
170 u16 devices; /* Set Device */
171 u8 volume_value; /* Volume Value */
172 } __attribute__((packed));
174 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Get Device */
178 } __attribute__((packed));
180 struct wmid3_gds_return_value { /* Get Device Status return value*/
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 devices; /* Current Device Status */
185 } __attribute__((packed));
187 struct hotkey_function_type_aa {
191 u16 commun_func_bitmap;
192 u16 application_func_bitmap;
193 u16 media_func_bitmap;
194 u16 display_func_bitmap;
195 u16 others_func_bitmap;
196 u8 commun_fn_key_number;
197 } __attribute__((packed));
200 * Interface capability flags
202 #define ACER_CAP_MAILLED (1<<0)
203 #define ACER_CAP_WIRELESS (1<<1)
204 #define ACER_CAP_BLUETOOTH (1<<2)
205 #define ACER_CAP_BRIGHTNESS (1<<3)
206 #define ACER_CAP_THREEG (1<<4)
207 #define ACER_CAP_ACCEL (1<<5)
208 #define ACER_CAP_ANY (0xFFFFFFFF)
211 * Interface type flags
213 enum interface_flags {
220 #define ACER_DEFAULT_WIRELESS 0
221 #define ACER_DEFAULT_BLUETOOTH 0
222 #define ACER_DEFAULT_MAILLED 0
223 #define ACER_DEFAULT_THREEG 0
225 static int max_brightness = 0xF;
227 static int mailled = -1;
228 static int brightness = -1;
229 static int threeg = -1;
230 static int force_series;
231 static bool ec_raw_mode;
232 static bool has_type_aa;
233 static u16 commun_func_bitmap;
234 static u8 commun_fn_key_number;
236 module_param(mailled, int, 0444);
237 module_param(brightness, int, 0444);
238 module_param(threeg, int, 0444);
239 module_param(force_series, int, 0444);
240 module_param(ec_raw_mode, bool, 0444);
241 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
242 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
243 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
244 MODULE_PARM_DESC(force_series, "Force a different laptop series");
245 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
255 struct dentry *devices;
259 static struct rfkill *wireless_rfkill;
260 static struct rfkill *bluetooth_rfkill;
261 static struct rfkill *threeg_rfkill;
262 static bool rfkill_inited;
264 /* Each low-level interface must define at least some of the following */
265 struct wmi_interface {
266 /* The WMI device type */
269 /* The capabilities this interface provides */
272 /* Private data for the current interface */
273 struct acer_data data;
275 /* debugfs entries associated with this interface */
276 struct acer_debug debug;
279 /* The static interface pointer, points to the currently detected interface */
280 static struct wmi_interface *interface;
283 * Embedded Controller quirks
284 * Some laptops require us to directly access the EC to either enable or query
285 * features that are not available through WMI.
295 static struct quirk_entry *quirks;
297 static void set_quirks(void)
303 interface->capability |= ACER_CAP_MAILLED;
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
309 static int dmi_matched(const struct dmi_system_id *dmi)
311 quirks = dmi->driver_data;
315 static struct quirk_entry quirk_unknown = {
318 static struct quirk_entry quirk_acer_aspire_1520 = {
322 static struct quirk_entry quirk_acer_travelmate_2490 = {
326 /* This AMW0 laptop has no bluetooth */
327 static struct quirk_entry quirk_medion_md_98300 = {
331 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
335 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
339 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
340 static struct dmi_system_id acer_blacklist[] = {
342 .ident = "Acer Aspire One (SSD)",
344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
349 .ident = "Acer Aspire One (HDD)",
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
358 static struct dmi_system_id acer_quirks[] = {
360 .callback = dmi_matched,
361 .ident = "Acer Aspire 1360",
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
366 .driver_data = &quirk_acer_aspire_1520,
369 .callback = dmi_matched,
370 .ident = "Acer Aspire 1520",
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
375 .driver_data = &quirk_acer_aspire_1520,
378 .callback = dmi_matched,
379 .ident = "Acer Aspire 3100",
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
384 .driver_data = &quirk_acer_travelmate_2490,
387 .callback = dmi_matched,
388 .ident = "Acer Aspire 3610",
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
393 .driver_data = &quirk_acer_travelmate_2490,
396 .callback = dmi_matched,
397 .ident = "Acer Aspire 5100",
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
402 .driver_data = &quirk_acer_travelmate_2490,
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 5610",
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
411 .driver_data = &quirk_acer_travelmate_2490,
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 5630",
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
420 .driver_data = &quirk_acer_travelmate_2490,
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 5650",
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
429 .driver_data = &quirk_acer_travelmate_2490,
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 5680",
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
438 .driver_data = &quirk_acer_travelmate_2490,
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 9110",
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
447 .driver_data = &quirk_acer_travelmate_2490,
450 .callback = dmi_matched,
451 .ident = "Acer TravelMate 2490",
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
456 .driver_data = &quirk_acer_travelmate_2490,
459 .callback = dmi_matched,
460 .ident = "Acer TravelMate 4200",
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
465 .driver_data = &quirk_acer_travelmate_2490,
468 .callback = dmi_matched,
469 .ident = "Fujitsu Siemens Amilo Li 1718",
471 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
474 .driver_data = &quirk_fujitsu_amilo_li_1718,
477 .callback = dmi_matched,
478 .ident = "Medion MD 98300",
480 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
483 .driver_data = &quirk_medion_md_98300,
486 .callback = dmi_matched,
487 .ident = "Lenovo Ideapad S205",
489 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
492 .driver_data = &quirk_lenovo_ideapad_s205,
495 .callback = dmi_matched,
496 .ident = "Lenovo Ideapad S205 (Brazos)",
498 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
501 .driver_data = &quirk_lenovo_ideapad_s205,
504 .callback = dmi_matched,
505 .ident = "Lenovo 3000 N200",
507 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
510 .driver_data = &quirk_fujitsu_amilo_li_1718,
513 .callback = dmi_matched,
514 .ident = "Lenovo Ideapad S205-10382JG",
516 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
519 .driver_data = &quirk_lenovo_ideapad_s205,
522 .callback = dmi_matched,
523 .ident = "Lenovo Ideapad S205-1038DPG",
525 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
526 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
528 .driver_data = &quirk_lenovo_ideapad_s205,
533 static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
535 interface->capability &= ~ACER_CAP_BRIGHTNESS;
536 pr_info("Brightness must be controlled by generic video driver\n");
540 static const struct dmi_system_id video_vendor_dmi_table[] = {
542 .callback = video_set_backlight_video_vendor,
543 .ident = "Acer TravelMate 4750",
545 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
546 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
550 .callback = video_set_backlight_video_vendor,
551 .ident = "Acer Extensa 5235",
553 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
558 .callback = video_set_backlight_video_vendor,
559 .ident = "Acer TravelMate 5760",
561 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
562 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
566 .callback = video_set_backlight_video_vendor,
567 .ident = "Acer Aspire 5750",
569 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
570 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
576 /* Find which quirks are needed for a particular vendor/ model pair */
577 static void find_quirks(void)
580 dmi_check_system(acer_quirks);
581 } else if (force_series == 2490) {
582 quirks = &quirk_acer_travelmate_2490;
586 quirks = &quirk_unknown;
592 * General interface convenience methods
595 static bool has_cap(u32 cap)
597 if ((interface->capability & cap) != 0)
604 * AMW0 (V1) interface
621 static acpi_status wmab_execute(struct wmab_args *regbuf,
622 struct acpi_buffer *result)
624 struct acpi_buffer input;
626 input.length = sizeof(struct wmab_args);
627 input.pointer = (u8 *)regbuf;
629 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
634 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
640 case ACER_CAP_MAILLED:
641 switch (quirks->mailled) {
643 err = ec_read(0xA, &result);
646 *value = (result >> 7) & 0x1;
650 case ACER_CAP_WIRELESS:
651 switch (quirks->wireless) {
653 err = ec_read(0x7B, &result);
656 *value = result & 0x1;
659 err = ec_read(0x71, &result);
662 *value = result & 0x1;
665 err = ec_read(0x78, &result);
668 *value = result & 0x1;
671 err = ec_read(0xA, &result);
674 *value = (result >> 2) & 0x1;
678 case ACER_CAP_BLUETOOTH:
679 switch (quirks->bluetooth) {
681 err = ec_read(0xA, &result);
684 *value = (result >> 4) & 0x1;
688 case ACER_CAP_BRIGHTNESS:
689 switch (quirks->brightness) {
691 err = ec_read(0x83, &result);
704 static acpi_status AMW0_set_u32(u32 value, u32 cap)
706 struct wmab_args args;
708 args.eax = ACER_AMW0_WRITE;
709 args.ebx = value ? (1<<8) : 0;
710 args.ecx = args.edx = 0;
713 case ACER_CAP_MAILLED:
715 return AE_BAD_PARAMETER;
716 args.ebx |= ACER_AMW0_MAILLED_MASK;
718 case ACER_CAP_WIRELESS:
720 return AE_BAD_PARAMETER;
721 args.ebx |= ACER_AMW0_WIRELESS_MASK;
723 case ACER_CAP_BLUETOOTH:
725 return AE_BAD_PARAMETER;
726 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
728 case ACER_CAP_BRIGHTNESS:
729 if (value > max_brightness)
730 return AE_BAD_PARAMETER;
731 switch (quirks->brightness) {
733 return ec_write(0x83, value);
740 /* Actually do the set */
741 return wmab_execute(&args, NULL);
744 static acpi_status AMW0_find_mailled(void)
746 struct wmab_args args;
748 acpi_status status = AE_OK;
749 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
750 union acpi_object *obj;
753 args.ebx = args.ecx = args.edx = 0;
755 status = wmab_execute(&args, &out);
756 if (ACPI_FAILURE(status))
759 obj = (union acpi_object *) out.pointer;
760 if (obj && obj->type == ACPI_TYPE_BUFFER &&
761 obj->buffer.length == sizeof(struct wmab_ret)) {
762 ret = *((struct wmab_ret *) obj->buffer.pointer);
769 interface->capability |= ACER_CAP_MAILLED;
776 static int AMW0_set_cap_acpi_check_device_found;
778 static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
779 u32 level, void *context, void **retval)
781 AMW0_set_cap_acpi_check_device_found = 1;
785 static const struct acpi_device_id norfkill_ids[] = {
789 { "SNY5001", 0}, /* sony-laptop in charge */
793 static int AMW0_set_cap_acpi_check_device(void)
795 const struct acpi_device_id *id;
797 for (id = norfkill_ids; id->id[0]; id++)
798 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
800 return AMW0_set_cap_acpi_check_device_found;
803 static acpi_status AMW0_set_capabilities(void)
805 struct wmab_args args;
808 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
809 union acpi_object *obj;
812 * On laptops with this strange GUID (non Acer), normal probing doesn't
815 if (wmi_has_guid(AMW0_GUID2)) {
816 if ((quirks != &quirk_unknown) ||
817 !AMW0_set_cap_acpi_check_device())
818 interface->capability |= ACER_CAP_WIRELESS;
822 args.eax = ACER_AMW0_WRITE;
823 args.ecx = args.edx = 0;
825 args.ebx = 0xa2 << 8;
826 args.ebx |= ACER_AMW0_WIRELESS_MASK;
828 status = wmab_execute(&args, &out);
829 if (ACPI_FAILURE(status))
833 if (obj && obj->type == ACPI_TYPE_BUFFER &&
834 obj->buffer.length == sizeof(struct wmab_ret)) {
835 ret = *((struct wmab_ret *) obj->buffer.pointer);
842 interface->capability |= ACER_CAP_WIRELESS;
845 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
848 * It's ok to use existing buffer for next wmab_execute call.
849 * But we need to kfree(out.pointer) if next wmab_execute fail.
851 status = wmab_execute(&args, &out);
852 if (ACPI_FAILURE(status))
855 obj = (union acpi_object *) out.pointer;
856 if (obj && obj->type == ACPI_TYPE_BUFFER
857 && obj->buffer.length == sizeof(struct wmab_ret)) {
858 ret = *((struct wmab_ret *) obj->buffer.pointer);
865 interface->capability |= ACER_CAP_BLUETOOTH;
868 * This appears to be safe to enable, since all Wistron based laptops
869 * appear to use the same EC register for brightness, even if they
870 * differ for wireless, etc
872 if (quirks->brightness >= 0)
873 interface->capability |= ACER_CAP_BRIGHTNESS;
881 static struct wmi_interface AMW0_interface = {
885 static struct wmi_interface AMW0_V2_interface = {
886 .type = ACER_AMW0_V2,
890 * New interface (The WMID interface)
893 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
895 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
896 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
897 union acpi_object *obj;
901 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
903 if (ACPI_FAILURE(status))
906 obj = (union acpi_object *) result.pointer;
908 if (obj->type == ACPI_TYPE_BUFFER &&
909 (obj->buffer.length == sizeof(u32) ||
910 obj->buffer.length == sizeof(u64))) {
911 tmp = *((u32 *) obj->buffer.pointer);
912 } else if (obj->type == ACPI_TYPE_INTEGER) {
913 tmp = (u32) obj->integer.value;
920 kfree(result.pointer);
925 static acpi_status WMID_get_u32(u32 *value, u32 cap)
929 u32 result, method_id = 0;
932 case ACER_CAP_WIRELESS:
933 method_id = ACER_WMID_GET_WIRELESS_METHODID;
935 case ACER_CAP_BLUETOOTH:
936 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
938 case ACER_CAP_BRIGHTNESS:
939 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
941 case ACER_CAP_THREEG:
942 method_id = ACER_WMID_GET_THREEG_METHODID;
944 case ACER_CAP_MAILLED:
945 if (quirks->mailled == 1) {
953 status = WMI_execute_u32(method_id, 0, &result);
955 if (ACPI_SUCCESS(status))
961 static acpi_status WMID_set_u32(u32 value, u32 cap)
967 case ACER_CAP_BRIGHTNESS:
968 if (value > max_brightness)
969 return AE_BAD_PARAMETER;
970 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
972 case ACER_CAP_WIRELESS:
974 return AE_BAD_PARAMETER;
975 method_id = ACER_WMID_SET_WIRELESS_METHODID;
977 case ACER_CAP_BLUETOOTH:
979 return AE_BAD_PARAMETER;
980 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
982 case ACER_CAP_THREEG:
984 return AE_BAD_PARAMETER;
985 method_id = ACER_WMID_SET_THREEG_METHODID;
987 case ACER_CAP_MAILLED:
989 return AE_BAD_PARAMETER;
990 if (quirks->mailled == 1) {
991 param = value ? 0x92 : 0x93;
993 i8042_command(¶m, 0x1059);
1001 return WMI_execute_u32(method_id, (u32)value, NULL);
1004 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1006 struct wmid3_gds_return_value return_value;
1008 union acpi_object *obj;
1009 struct wmid3_gds_get_input_param params = {
1010 .function_num = 0x1,
1011 .hotkey_number = commun_fn_key_number,
1014 struct acpi_buffer input = {
1015 sizeof(struct wmid3_gds_get_input_param),
1018 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1020 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1021 if (ACPI_FAILURE(status))
1024 obj = output.pointer;
1028 else if (obj->type != ACPI_TYPE_BUFFER) {
1032 if (obj->buffer.length != 8) {
1033 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1038 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1041 if (return_value.error_code || return_value.ec_return_value)
1042 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1044 return_value.error_code,
1045 return_value.ec_return_value);
1047 *value = !!(return_value.devices & device);
1052 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1057 case ACER_CAP_WIRELESS:
1058 device = ACER_WMID3_GDS_WIRELESS;
1060 case ACER_CAP_BLUETOOTH:
1061 device = ACER_WMID3_GDS_BLUETOOTH;
1063 case ACER_CAP_THREEG:
1064 device = ACER_WMID3_GDS_THREEG;
1069 return wmid3_get_device_status(value, device);
1072 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1074 struct wmid3_gds_return_value return_value;
1076 union acpi_object *obj;
1078 struct wmid3_gds_get_input_param get_params = {
1079 .function_num = 0x1,
1080 .hotkey_number = commun_fn_key_number,
1081 .devices = commun_func_bitmap,
1083 struct acpi_buffer get_input = {
1084 sizeof(struct wmid3_gds_get_input_param),
1087 struct wmid3_gds_set_input_param set_params = {
1088 .function_num = 0x2,
1089 .hotkey_number = commun_fn_key_number,
1090 .devices = commun_func_bitmap,
1092 struct acpi_buffer set_input = {
1093 sizeof(struct wmid3_gds_set_input_param),
1096 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1097 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1099 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1100 if (ACPI_FAILURE(status))
1103 obj = output.pointer;
1107 else if (obj->type != ACPI_TYPE_BUFFER) {
1111 if (obj->buffer.length != 8) {
1112 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1117 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1120 if (return_value.error_code || return_value.ec_return_value) {
1121 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1122 return_value.error_code,
1123 return_value.ec_return_value);
1127 devices = return_value.devices;
1128 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1130 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1131 if (ACPI_FAILURE(status))
1134 obj = output2.pointer;
1138 else if (obj->type != ACPI_TYPE_BUFFER) {
1142 if (obj->buffer.length != 4) {
1143 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1148 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1151 if (return_value.error_code || return_value.ec_return_value)
1152 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1153 return_value.error_code,
1154 return_value.ec_return_value);
1159 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1164 case ACER_CAP_WIRELESS:
1165 device = ACER_WMID3_GDS_WIRELESS;
1167 case ACER_CAP_BLUETOOTH:
1168 device = ACER_WMID3_GDS_BLUETOOTH;
1170 case ACER_CAP_THREEG:
1171 device = ACER_WMID3_GDS_THREEG;
1176 return wmid3_set_device_status(value, device);
1179 static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
1181 struct hotkey_function_type_aa *type_aa;
1183 /* We are looking for OEM-specific Type AAh */
1184 if (header->type != 0xAA)
1188 type_aa = (struct hotkey_function_type_aa *) header;
1190 pr_info("Function bitmap for Communication Button: 0x%x\n",
1191 type_aa->commun_func_bitmap);
1192 commun_func_bitmap = type_aa->commun_func_bitmap;
1194 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1195 interface->capability |= ACER_CAP_WIRELESS;
1196 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1197 interface->capability |= ACER_CAP_THREEG;
1198 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1199 interface->capability |= ACER_CAP_BLUETOOTH;
1201 commun_fn_key_number = type_aa->commun_fn_key_number;
1204 static acpi_status WMID_set_capabilities(void)
1206 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1207 union acpi_object *obj;
1211 status = wmi_query_block(WMID_GUID2, 1, &out);
1212 if (ACPI_FAILURE(status))
1215 obj = (union acpi_object *) out.pointer;
1217 if (obj->type == ACPI_TYPE_BUFFER &&
1218 (obj->buffer.length == sizeof(u32) ||
1219 obj->buffer.length == sizeof(u64))) {
1220 devices = *((u32 *) obj->buffer.pointer);
1221 } else if (obj->type == ACPI_TYPE_INTEGER) {
1222 devices = (u32) obj->integer.value;
1232 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1234 interface->capability |= ACER_CAP_WIRELESS;
1236 interface->capability |= ACER_CAP_THREEG;
1238 interface->capability |= ACER_CAP_BLUETOOTH;
1240 if (!(devices & 0x20))
1241 max_brightness = 0x9;
1247 static struct wmi_interface wmid_interface = {
1251 static struct wmi_interface wmid_v2_interface = {
1252 .type = ACER_WMID_v2,
1256 * Generic Device (interface-independent)
1259 static acpi_status get_u32(u32 *value, u32 cap)
1261 acpi_status status = AE_ERROR;
1263 switch (interface->type) {
1265 status = AMW0_get_u32(value, cap);
1268 if (cap == ACER_CAP_MAILLED) {
1269 status = AMW0_get_u32(value, cap);
1273 status = WMID_get_u32(value, cap);
1276 if (cap & (ACER_CAP_WIRELESS |
1277 ACER_CAP_BLUETOOTH |
1279 status = wmid_v2_get_u32(value, cap);
1280 else if (wmi_has_guid(WMID_GUID2))
1281 status = WMID_get_u32(value, cap);
1288 static acpi_status set_u32(u32 value, u32 cap)
1292 if (interface->capability & cap) {
1293 switch (interface->type) {
1295 return AMW0_set_u32(value, cap);
1297 if (cap == ACER_CAP_MAILLED)
1298 return AMW0_set_u32(value, cap);
1301 * On some models, some WMID methods don't toggle
1302 * properly. For those cases, we want to run the AMW0
1303 * method afterwards to be certain we've really toggled
1306 if (cap == ACER_CAP_WIRELESS ||
1307 cap == ACER_CAP_BLUETOOTH) {
1308 status = WMID_set_u32(value, cap);
1309 if (ACPI_FAILURE(status))
1312 return AMW0_set_u32(value, cap);
1315 return WMID_set_u32(value, cap);
1317 if (cap & (ACER_CAP_WIRELESS |
1318 ACER_CAP_BLUETOOTH |
1320 return wmid_v2_set_u32(value, cap);
1321 else if (wmi_has_guid(WMID_GUID2))
1322 return WMID_set_u32(value, cap);
1324 return AE_BAD_PARAMETER;
1327 return AE_BAD_PARAMETER;
1330 static void __init acer_commandline_init(void)
1333 * These will all fail silently if the value given is invalid, or the
1334 * capability isn't available on the given interface
1337 set_u32(mailled, ACER_CAP_MAILLED);
1338 if (!has_type_aa && threeg >= 0)
1339 set_u32(threeg, ACER_CAP_THREEG);
1340 if (brightness >= 0)
1341 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1345 * LED device (Mail LED only, no other LEDs known yet)
1347 static void mail_led_set(struct led_classdev *led_cdev,
1348 enum led_brightness value)
1350 set_u32(value, ACER_CAP_MAILLED);
1353 static struct led_classdev mail_led = {
1354 .name = "acer-wmi::mail",
1355 .brightness_set = mail_led_set,
1358 static int acer_led_init(struct device *dev)
1360 return led_classdev_register(dev, &mail_led);
1363 static void acer_led_exit(void)
1365 set_u32(LED_OFF, ACER_CAP_MAILLED);
1366 led_classdev_unregister(&mail_led);
1372 static struct backlight_device *acer_backlight_device;
1374 static int read_brightness(struct backlight_device *bd)
1377 get_u32(&value, ACER_CAP_BRIGHTNESS);
1381 static int update_bl_status(struct backlight_device *bd)
1383 int intensity = bd->props.brightness;
1385 if (bd->props.power != FB_BLANK_UNBLANK)
1387 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1390 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1395 static const struct backlight_ops acer_bl_ops = {
1396 .get_brightness = read_brightness,
1397 .update_status = update_bl_status,
1400 static int acer_backlight_init(struct device *dev)
1402 struct backlight_properties props;
1403 struct backlight_device *bd;
1405 memset(&props, 0, sizeof(struct backlight_properties));
1406 props.type = BACKLIGHT_PLATFORM;
1407 props.max_brightness = max_brightness;
1408 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1411 pr_err("Could not register Acer backlight device\n");
1412 acer_backlight_device = NULL;
1416 acer_backlight_device = bd;
1418 bd->props.power = FB_BLANK_UNBLANK;
1419 bd->props.brightness = read_brightness(bd);
1420 backlight_update_status(bd);
1424 static void acer_backlight_exit(void)
1426 backlight_device_unregister(acer_backlight_device);
1430 * Accelerometer device
1432 static acpi_handle gsensor_handle;
1434 static int acer_gsensor_init(void)
1437 struct acpi_buffer output;
1438 union acpi_object out_obj;
1440 output.length = sizeof(out_obj);
1441 output.pointer = &out_obj;
1442 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1443 if (ACPI_FAILURE(status))
1449 static int acer_gsensor_open(struct input_dev *input)
1451 return acer_gsensor_init();
1454 static int acer_gsensor_event(void)
1457 struct acpi_buffer output;
1458 union acpi_object out_obj[5];
1460 if (!has_cap(ACER_CAP_ACCEL))
1463 output.length = sizeof(out_obj);
1464 output.pointer = out_obj;
1466 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1467 if (ACPI_FAILURE(status))
1470 if (out_obj->package.count != 4)
1473 input_report_abs(acer_wmi_accel_dev, ABS_X,
1474 (s16)out_obj->package.elements[0].integer.value);
1475 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1476 (s16)out_obj->package.elements[1].integer.value);
1477 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1478 (s16)out_obj->package.elements[2].integer.value);
1479 input_sync(acer_wmi_accel_dev);
1486 static void acer_rfkill_update(struct work_struct *ignored);
1487 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1488 static void acer_rfkill_update(struct work_struct *ignored)
1493 if (has_cap(ACER_CAP_WIRELESS)) {
1494 status = get_u32(&state, ACER_CAP_WIRELESS);
1495 if (ACPI_SUCCESS(status)) {
1496 if (quirks->wireless == 3)
1497 rfkill_set_hw_state(wireless_rfkill, !state);
1499 rfkill_set_sw_state(wireless_rfkill, !state);
1503 if (has_cap(ACER_CAP_BLUETOOTH)) {
1504 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1505 if (ACPI_SUCCESS(status))
1506 rfkill_set_sw_state(bluetooth_rfkill, !state);
1509 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1510 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1511 if (ACPI_SUCCESS(status))
1512 rfkill_set_sw_state(threeg_rfkill, !state);
1515 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1518 static int acer_rfkill_set(void *data, bool blocked)
1521 u32 cap = (unsigned long)data;
1523 if (rfkill_inited) {
1524 status = set_u32(!blocked, cap);
1525 if (ACPI_FAILURE(status))
1532 static const struct rfkill_ops acer_rfkill_ops = {
1533 .set_block = acer_rfkill_set,
1536 static struct rfkill *acer_rfkill_register(struct device *dev,
1537 enum rfkill_type type,
1538 char *name, u32 cap)
1541 struct rfkill *rfkill_dev;
1545 rfkill_dev = rfkill_alloc(name, dev, type,
1547 (void *)(unsigned long)cap);
1549 return ERR_PTR(-ENOMEM);
1551 status = get_u32(&state, cap);
1553 err = rfkill_register(rfkill_dev);
1555 rfkill_destroy(rfkill_dev);
1556 return ERR_PTR(err);
1559 if (ACPI_SUCCESS(status))
1560 rfkill_set_sw_state(rfkill_dev, !state);
1565 static int acer_rfkill_init(struct device *dev)
1569 if (has_cap(ACER_CAP_WIRELESS)) {
1570 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1571 "acer-wireless", ACER_CAP_WIRELESS);
1572 if (IS_ERR(wireless_rfkill)) {
1573 err = PTR_ERR(wireless_rfkill);
1574 goto error_wireless;
1578 if (has_cap(ACER_CAP_BLUETOOTH)) {
1579 bluetooth_rfkill = acer_rfkill_register(dev,
1580 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1581 ACER_CAP_BLUETOOTH);
1582 if (IS_ERR(bluetooth_rfkill)) {
1583 err = PTR_ERR(bluetooth_rfkill);
1584 goto error_bluetooth;
1588 if (has_cap(ACER_CAP_THREEG)) {
1589 threeg_rfkill = acer_rfkill_register(dev,
1590 RFKILL_TYPE_WWAN, "acer-threeg",
1592 if (IS_ERR(threeg_rfkill)) {
1593 err = PTR_ERR(threeg_rfkill);
1598 rfkill_inited = true;
1600 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1601 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1602 schedule_delayed_work(&acer_rfkill_work,
1603 round_jiffies_relative(HZ));
1608 if (has_cap(ACER_CAP_BLUETOOTH)) {
1609 rfkill_unregister(bluetooth_rfkill);
1610 rfkill_destroy(bluetooth_rfkill);
1613 if (has_cap(ACER_CAP_WIRELESS)) {
1614 rfkill_unregister(wireless_rfkill);
1615 rfkill_destroy(wireless_rfkill);
1621 static void acer_rfkill_exit(void)
1623 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1624 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1625 cancel_delayed_work_sync(&acer_rfkill_work);
1627 if (has_cap(ACER_CAP_WIRELESS)) {
1628 rfkill_unregister(wireless_rfkill);
1629 rfkill_destroy(wireless_rfkill);
1632 if (has_cap(ACER_CAP_BLUETOOTH)) {
1633 rfkill_unregister(bluetooth_rfkill);
1634 rfkill_destroy(bluetooth_rfkill);
1637 if (has_cap(ACER_CAP_THREEG)) {
1638 rfkill_unregister(threeg_rfkill);
1639 rfkill_destroy(threeg_rfkill);
1647 static ssize_t show_bool_threeg(struct device *dev,
1648 struct device_attribute *attr, char *buf)
1653 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1655 status = get_u32(&result, ACER_CAP_THREEG);
1656 if (ACPI_SUCCESS(status))
1657 return sprintf(buf, "%u\n", result);
1658 return sprintf(buf, "Read error\n");
1661 static ssize_t set_bool_threeg(struct device *dev,
1662 struct device_attribute *attr, const char *buf, size_t count)
1664 u32 tmp = simple_strtoul(buf, NULL, 10);
1665 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1666 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1668 if (ACPI_FAILURE(status))
1672 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1675 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1678 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
1680 switch (interface->type) {
1682 return sprintf(buf, "AMW0\n");
1684 return sprintf(buf, "AMW0 v2\n");
1686 return sprintf(buf, "WMID\n");
1688 return sprintf(buf, "WMID v2\n");
1690 return sprintf(buf, "Error!\n");
1694 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1696 static void acer_wmi_notify(u32 value, void *context)
1698 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1699 union acpi_object *obj;
1700 struct event_return_value return_value;
1703 const struct key_entry *key;
1706 status = wmi_get_event_data(value, &response);
1707 if (status != AE_OK) {
1708 pr_warn("bad event status 0x%x\n", status);
1712 obj = (union acpi_object *)response.pointer;
1716 if (obj->type != ACPI_TYPE_BUFFER) {
1717 pr_warn("Unknown response received %d\n", obj->type);
1721 if (obj->buffer.length != 8) {
1722 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1727 return_value = *((struct event_return_value *)obj->buffer.pointer);
1730 switch (return_value.function) {
1731 case WMID_HOTKEY_EVENT:
1732 device_state = return_value.device_state;
1733 pr_debug("device state: 0x%x\n", device_state);
1735 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1736 return_value.key_num);
1738 pr_warn("Unknown key number - 0x%x\n",
1739 return_value.key_num);
1741 scancode = return_value.key_num;
1742 switch (key->keycode) {
1745 if (has_cap(ACER_CAP_WIRELESS))
1746 rfkill_set_sw_state(wireless_rfkill,
1747 !(device_state & ACER_WMID3_GDS_WIRELESS));
1748 if (has_cap(ACER_CAP_THREEG))
1749 rfkill_set_sw_state(threeg_rfkill,
1750 !(device_state & ACER_WMID3_GDS_THREEG));
1751 if (has_cap(ACER_CAP_BLUETOOTH))
1752 rfkill_set_sw_state(bluetooth_rfkill,
1753 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1755 case KEY_TOUCHPAD_TOGGLE:
1756 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1757 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1759 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1762 case WMID_ACCEL_EVENT:
1763 acer_gsensor_event();
1766 pr_warn("Unknown function number - %d - %d\n",
1767 return_value.function, return_value.key_num);
1773 wmid3_set_lm_mode(struct lm_input_params *params,
1774 struct lm_return_value *return_value)
1777 union acpi_object *obj;
1779 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1780 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1782 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1783 if (ACPI_FAILURE(status))
1786 obj = output.pointer;
1790 else if (obj->type != ACPI_TYPE_BUFFER) {
1794 if (obj->buffer.length != 4) {
1795 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1800 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1806 static int acer_wmi_enable_ec_raw(void)
1808 struct lm_return_value return_value;
1810 struct lm_input_params params = {
1811 .function_num = 0x1,
1812 .commun_devices = 0xFFFF,
1814 .lm_status = 0x00, /* Launch Manager Deactive */
1817 status = wmid3_set_lm_mode(¶ms, &return_value);
1819 if (return_value.error_code || return_value.ec_return_value)
1820 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1821 return_value.error_code,
1822 return_value.ec_return_value);
1824 pr_info("Enabled EC raw mode\n");
1829 static int acer_wmi_enable_lm(void)
1831 struct lm_return_value return_value;
1833 struct lm_input_params params = {
1834 .function_num = 0x1,
1835 .commun_devices = 0xFFFF,
1837 .lm_status = 0x01, /* Launch Manager Active */
1840 status = wmid3_set_lm_mode(¶ms, &return_value);
1842 if (return_value.error_code || return_value.ec_return_value)
1843 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1844 return_value.error_code,
1845 return_value.ec_return_value);
1850 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1851 void *ctx, void **retval)
1853 *(acpi_handle *)retval = ah;
1857 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1863 BUG_ON(!name || !ah);
1866 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1867 (void *)name, &handle);
1869 if (ACPI_SUCCESS(status)) {
1877 static int __init acer_wmi_accel_setup(void)
1881 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1885 interface->capability |= ACER_CAP_ACCEL;
1887 acer_wmi_accel_dev = input_allocate_device();
1888 if (!acer_wmi_accel_dev)
1891 acer_wmi_accel_dev->open = acer_gsensor_open;
1893 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1894 acer_wmi_accel_dev->phys = "wmi/input1";
1895 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1896 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1897 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1898 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1899 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1901 err = input_register_device(acer_wmi_accel_dev);
1908 input_free_device(acer_wmi_accel_dev);
1912 static void acer_wmi_accel_destroy(void)
1914 input_unregister_device(acer_wmi_accel_dev);
1917 static int __init acer_wmi_input_setup(void)
1922 acer_wmi_input_dev = input_allocate_device();
1923 if (!acer_wmi_input_dev)
1926 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1927 acer_wmi_input_dev->phys = "wmi/input0";
1928 acer_wmi_input_dev->id.bustype = BUS_HOST;
1930 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1934 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1935 acer_wmi_notify, NULL);
1936 if (ACPI_FAILURE(status)) {
1938 goto err_free_keymap;
1941 err = input_register_device(acer_wmi_input_dev);
1943 goto err_uninstall_notifier;
1947 err_uninstall_notifier:
1948 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1950 sparse_keymap_free(acer_wmi_input_dev);
1952 input_free_device(acer_wmi_input_dev);
1956 static void acer_wmi_input_destroy(void)
1958 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1959 sparse_keymap_free(acer_wmi_input_dev);
1960 input_unregister_device(acer_wmi_input_dev);
1966 static u32 get_wmid_devices(void)
1968 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1969 union acpi_object *obj;
1973 status = wmi_query_block(WMID_GUID2, 1, &out);
1974 if (ACPI_FAILURE(status))
1977 obj = (union acpi_object *) out.pointer;
1979 if (obj->type == ACPI_TYPE_BUFFER &&
1980 (obj->buffer.length == sizeof(u32) ||
1981 obj->buffer.length == sizeof(u64))) {
1982 devices = *((u32 *) obj->buffer.pointer);
1983 } else if (obj->type == ACPI_TYPE_INTEGER) {
1984 devices = (u32) obj->integer.value;
1995 static int acer_platform_probe(struct platform_device *device)
1999 if (has_cap(ACER_CAP_MAILLED)) {
2000 err = acer_led_init(&device->dev);
2005 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2006 err = acer_backlight_init(&device->dev);
2008 goto error_brightness;
2011 err = acer_rfkill_init(&device->dev);
2018 if (has_cap(ACER_CAP_BRIGHTNESS))
2019 acer_backlight_exit();
2021 if (has_cap(ACER_CAP_MAILLED))
2027 static int acer_platform_remove(struct platform_device *device)
2029 if (has_cap(ACER_CAP_MAILLED))
2031 if (has_cap(ACER_CAP_BRIGHTNESS))
2032 acer_backlight_exit();
2038 static int acer_suspend(struct device *dev)
2041 struct acer_data *data = &interface->data;
2046 if (has_cap(ACER_CAP_MAILLED)) {
2047 get_u32(&value, ACER_CAP_MAILLED);
2048 set_u32(LED_OFF, ACER_CAP_MAILLED);
2049 data->mailled = value;
2052 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2053 get_u32(&value, ACER_CAP_BRIGHTNESS);
2054 data->brightness = value;
2060 static int acer_resume(struct device *dev)
2062 struct acer_data *data = &interface->data;
2067 if (has_cap(ACER_CAP_MAILLED))
2068 set_u32(data->mailled, ACER_CAP_MAILLED);
2070 if (has_cap(ACER_CAP_BRIGHTNESS))
2071 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2073 if (has_cap(ACER_CAP_ACCEL))
2074 acer_gsensor_init();
2079 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2081 static void acer_platform_shutdown(struct platform_device *device)
2083 struct acer_data *data = &interface->data;
2088 if (has_cap(ACER_CAP_MAILLED))
2089 set_u32(LED_OFF, ACER_CAP_MAILLED);
2092 static struct platform_driver acer_platform_driver = {
2095 .owner = THIS_MODULE,
2098 .probe = acer_platform_probe,
2099 .remove = acer_platform_remove,
2100 .shutdown = acer_platform_shutdown,
2103 static struct platform_device *acer_platform_device;
2105 static int remove_sysfs(struct platform_device *device)
2107 if (has_cap(ACER_CAP_THREEG))
2108 device_remove_file(&device->dev, &dev_attr_threeg);
2110 device_remove_file(&device->dev, &dev_attr_interface);
2115 static int create_sysfs(void)
2117 int retval = -ENOMEM;
2119 if (has_cap(ACER_CAP_THREEG)) {
2120 retval = device_create_file(&acer_platform_device->dev,
2126 retval = device_create_file(&acer_platform_device->dev,
2127 &dev_attr_interface);
2134 remove_sysfs(acer_platform_device);
2138 static void remove_debugfs(void)
2140 debugfs_remove(interface->debug.devices);
2141 debugfs_remove(interface->debug.root);
2144 static int create_debugfs(void)
2146 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2147 if (!interface->debug.root) {
2148 pr_err("Failed to create debugfs directory");
2152 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2153 interface->debug.root,
2154 &interface->debug.wmid_devices);
2155 if (!interface->debug.devices)
2165 static int __init acer_wmi_init(void)
2169 pr_info("Acer Laptop ACPI-WMI Extras\n");
2171 if (dmi_check_system(acer_blacklist)) {
2172 pr_info("Blacklisted hardware detected - not loading\n");
2179 * Detect which ACPI-WMI interface we're using.
2181 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2182 interface = &AMW0_V2_interface;
2184 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2185 interface = &wmid_interface;
2187 if (wmi_has_guid(WMID_GUID3))
2188 interface = &wmid_v2_interface;
2191 dmi_walk(type_aa_dmi_decode, NULL);
2193 if (wmi_has_guid(WMID_GUID2) && interface) {
2194 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2195 pr_err("Unable to detect available WMID devices\n");
2198 /* WMID always provides brightness methods */
2199 interface->capability |= ACER_CAP_BRIGHTNESS;
2200 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2201 pr_err("No WMID device detection method found\n");
2205 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2206 interface = &AMW0_interface;
2208 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2209 pr_err("Unable to detect available AMW0 devices\n");
2214 if (wmi_has_guid(AMW0_GUID1))
2215 AMW0_find_mailled();
2218 pr_err("No or unsupported WMI interface, unable to load\n");
2224 if (dmi_check_system(video_vendor_dmi_table))
2225 acpi_video_dmi_promote_vendor();
2226 if (acpi_video_backlight_support()) {
2227 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2228 pr_info("Brightness must be controlled by acpi video driver\n");
2230 pr_info("Disabling ACPI video driver\n");
2231 acpi_video_unregister();
2234 if (wmi_has_guid(WMID_GUID3)) {
2236 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2237 pr_err("Cannot enable EC raw mode\n");
2240 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2241 pr_err("Cannot enable Launch Manager mode\n");
2244 } else if (ec_raw_mode) {
2245 pr_info("No WMID EC raw mode enable method\n");
2248 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2249 err = acer_wmi_input_setup();
2254 acer_wmi_accel_setup();
2256 err = platform_driver_register(&acer_platform_driver);
2258 pr_err("Unable to register platform driver\n");
2259 goto error_platform_register;
2262 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2263 if (!acer_platform_device) {
2265 goto error_device_alloc;
2268 err = platform_device_add(acer_platform_device);
2270 goto error_device_add;
2272 err = create_sysfs();
2274 goto error_create_sys;
2276 if (wmi_has_guid(WMID_GUID2)) {
2277 interface->debug.wmid_devices = get_wmid_devices();
2278 err = create_debugfs();
2280 goto error_create_debugfs;
2283 /* Override any initial settings with values from the commandline */
2284 acer_commandline_init();
2288 error_create_debugfs:
2289 remove_sysfs(acer_platform_device);
2291 platform_device_del(acer_platform_device);
2293 platform_device_put(acer_platform_device);
2295 platform_driver_unregister(&acer_platform_driver);
2296 error_platform_register:
2297 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2298 acer_wmi_input_destroy();
2299 if (has_cap(ACER_CAP_ACCEL))
2300 acer_wmi_accel_destroy();
2305 static void __exit acer_wmi_exit(void)
2307 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2308 acer_wmi_input_destroy();
2310 if (has_cap(ACER_CAP_ACCEL))
2311 acer_wmi_accel_destroy();
2313 remove_sysfs(acer_platform_device);
2315 platform_device_unregister(acer_platform_device);
2316 platform_driver_unregister(&acer_platform_driver);
2318 pr_info("Acer Laptop WMI Extras unloaded\n");
2322 module_init(acer_wmi_init);
2323 module_exit(acer_wmi_exit);