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[] __initconst = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
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 __init set_quirks(void)
303 interface->capability |= ACER_CAP_MAILLED;
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
309 static int __init 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 const struct dmi_system_id acer_blacklist[] __initconst = {
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 const struct dmi_system_id acer_quirks[] __initconst = {
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,
534 video_set_backlight_video_vendor(const struct dmi_system_id *d)
536 interface->capability &= ~ACER_CAP_BRIGHTNESS;
537 pr_info("Brightness must be controlled by generic video driver\n");
541 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
543 .callback = video_set_backlight_video_vendor,
544 .ident = "Acer TravelMate 4750",
546 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
551 .callback = video_set_backlight_video_vendor,
552 .ident = "Acer Extensa 5235",
554 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
559 .callback = video_set_backlight_video_vendor,
560 .ident = "Acer TravelMate 5760",
562 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
567 .callback = video_set_backlight_video_vendor,
568 .ident = "Acer Aspire 5750",
570 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
571 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
575 .callback = video_set_backlight_video_vendor,
576 .ident = "Acer Aspire 5741",
578 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
584 * Note no video_set_backlight_video_vendor, we must use the
585 * acer interface, as there is no native backlight interface.
587 .ident = "Acer KAV80",
589 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
590 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
596 /* Find which quirks are needed for a particular vendor/ model pair */
597 static void __init find_quirks(void)
600 dmi_check_system(acer_quirks);
601 } else if (force_series == 2490) {
602 quirks = &quirk_acer_travelmate_2490;
606 quirks = &quirk_unknown;
612 * General interface convenience methods
615 static bool has_cap(u32 cap)
617 if ((interface->capability & cap) != 0)
624 * AMW0 (V1) interface
641 static acpi_status wmab_execute(struct wmab_args *regbuf,
642 struct acpi_buffer *result)
644 struct acpi_buffer input;
646 input.length = sizeof(struct wmab_args);
647 input.pointer = (u8 *)regbuf;
649 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
654 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
660 case ACER_CAP_MAILLED:
661 switch (quirks->mailled) {
663 err = ec_read(0xA, &result);
666 *value = (result >> 7) & 0x1;
670 case ACER_CAP_WIRELESS:
671 switch (quirks->wireless) {
673 err = ec_read(0x7B, &result);
676 *value = result & 0x1;
679 err = ec_read(0x71, &result);
682 *value = result & 0x1;
685 err = ec_read(0x78, &result);
688 *value = result & 0x1;
691 err = ec_read(0xA, &result);
694 *value = (result >> 2) & 0x1;
698 case ACER_CAP_BLUETOOTH:
699 switch (quirks->bluetooth) {
701 err = ec_read(0xA, &result);
704 *value = (result >> 4) & 0x1;
708 case ACER_CAP_BRIGHTNESS:
709 switch (quirks->brightness) {
711 err = ec_read(0x83, &result);
724 static acpi_status AMW0_set_u32(u32 value, u32 cap)
726 struct wmab_args args;
728 args.eax = ACER_AMW0_WRITE;
729 args.ebx = value ? (1<<8) : 0;
730 args.ecx = args.edx = 0;
733 case ACER_CAP_MAILLED:
735 return AE_BAD_PARAMETER;
736 args.ebx |= ACER_AMW0_MAILLED_MASK;
738 case ACER_CAP_WIRELESS:
740 return AE_BAD_PARAMETER;
741 args.ebx |= ACER_AMW0_WIRELESS_MASK;
743 case ACER_CAP_BLUETOOTH:
745 return AE_BAD_PARAMETER;
746 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
748 case ACER_CAP_BRIGHTNESS:
749 if (value > max_brightness)
750 return AE_BAD_PARAMETER;
751 switch (quirks->brightness) {
753 return ec_write(0x83, value);
760 /* Actually do the set */
761 return wmab_execute(&args, NULL);
764 static acpi_status __init AMW0_find_mailled(void)
766 struct wmab_args args;
768 acpi_status status = AE_OK;
769 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
770 union acpi_object *obj;
773 args.ebx = args.ecx = args.edx = 0;
775 status = wmab_execute(&args, &out);
776 if (ACPI_FAILURE(status))
779 obj = (union acpi_object *) out.pointer;
780 if (obj && obj->type == ACPI_TYPE_BUFFER &&
781 obj->buffer.length == sizeof(struct wmab_ret)) {
782 ret = *((struct wmab_ret *) obj->buffer.pointer);
789 interface->capability |= ACER_CAP_MAILLED;
796 static int AMW0_set_cap_acpi_check_device_found __initdata;
798 static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
799 u32 level, void *context, void **retval)
801 AMW0_set_cap_acpi_check_device_found = 1;
805 static const struct acpi_device_id norfkill_ids[] __initconst = {
809 { "SNY5001", 0}, /* sony-laptop in charge */
814 static int __init AMW0_set_cap_acpi_check_device(void)
816 const struct acpi_device_id *id;
818 for (id = norfkill_ids; id->id[0]; id++)
819 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
821 return AMW0_set_cap_acpi_check_device_found;
824 static acpi_status __init AMW0_set_capabilities(void)
826 struct wmab_args args;
829 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
830 union acpi_object *obj;
833 * On laptops with this strange GUID (non Acer), normal probing doesn't
836 if (wmi_has_guid(AMW0_GUID2)) {
837 if ((quirks != &quirk_unknown) ||
838 !AMW0_set_cap_acpi_check_device())
839 interface->capability |= ACER_CAP_WIRELESS;
843 args.eax = ACER_AMW0_WRITE;
844 args.ecx = args.edx = 0;
846 args.ebx = 0xa2 << 8;
847 args.ebx |= ACER_AMW0_WIRELESS_MASK;
849 status = wmab_execute(&args, &out);
850 if (ACPI_FAILURE(status))
854 if (obj && obj->type == ACPI_TYPE_BUFFER &&
855 obj->buffer.length == sizeof(struct wmab_ret)) {
856 ret = *((struct wmab_ret *) obj->buffer.pointer);
863 interface->capability |= ACER_CAP_WIRELESS;
866 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
869 * It's ok to use existing buffer for next wmab_execute call.
870 * But we need to kfree(out.pointer) if next wmab_execute fail.
872 status = wmab_execute(&args, &out);
873 if (ACPI_FAILURE(status))
876 obj = (union acpi_object *) out.pointer;
877 if (obj && obj->type == ACPI_TYPE_BUFFER
878 && obj->buffer.length == sizeof(struct wmab_ret)) {
879 ret = *((struct wmab_ret *) obj->buffer.pointer);
886 interface->capability |= ACER_CAP_BLUETOOTH;
889 * This appears to be safe to enable, since all Wistron based laptops
890 * appear to use the same EC register for brightness, even if they
891 * differ for wireless, etc
893 if (quirks->brightness >= 0)
894 interface->capability |= ACER_CAP_BRIGHTNESS;
902 static struct wmi_interface AMW0_interface = {
906 static struct wmi_interface AMW0_V2_interface = {
907 .type = ACER_AMW0_V2,
911 * New interface (The WMID interface)
914 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
916 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
917 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
918 union acpi_object *obj;
922 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
924 if (ACPI_FAILURE(status))
927 obj = (union acpi_object *) result.pointer;
929 if (obj->type == ACPI_TYPE_BUFFER &&
930 (obj->buffer.length == sizeof(u32) ||
931 obj->buffer.length == sizeof(u64))) {
932 tmp = *((u32 *) obj->buffer.pointer);
933 } else if (obj->type == ACPI_TYPE_INTEGER) {
934 tmp = (u32) obj->integer.value;
941 kfree(result.pointer);
946 static acpi_status WMID_get_u32(u32 *value, u32 cap)
950 u32 result, method_id = 0;
953 case ACER_CAP_WIRELESS:
954 method_id = ACER_WMID_GET_WIRELESS_METHODID;
956 case ACER_CAP_BLUETOOTH:
957 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
959 case ACER_CAP_BRIGHTNESS:
960 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
962 case ACER_CAP_THREEG:
963 method_id = ACER_WMID_GET_THREEG_METHODID;
965 case ACER_CAP_MAILLED:
966 if (quirks->mailled == 1) {
974 status = WMI_execute_u32(method_id, 0, &result);
976 if (ACPI_SUCCESS(status))
982 static acpi_status WMID_set_u32(u32 value, u32 cap)
988 case ACER_CAP_BRIGHTNESS:
989 if (value > max_brightness)
990 return AE_BAD_PARAMETER;
991 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
993 case ACER_CAP_WIRELESS:
995 return AE_BAD_PARAMETER;
996 method_id = ACER_WMID_SET_WIRELESS_METHODID;
998 case ACER_CAP_BLUETOOTH:
1000 return AE_BAD_PARAMETER;
1001 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1003 case ACER_CAP_THREEG:
1005 return AE_BAD_PARAMETER;
1006 method_id = ACER_WMID_SET_THREEG_METHODID;
1008 case ACER_CAP_MAILLED:
1010 return AE_BAD_PARAMETER;
1011 if (quirks->mailled == 1) {
1012 param = value ? 0x92 : 0x93;
1014 i8042_command(¶m, 0x1059);
1015 i8042_unlock_chip();
1022 return WMI_execute_u32(method_id, (u32)value, NULL);
1025 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1027 struct wmid3_gds_return_value return_value;
1029 union acpi_object *obj;
1030 struct wmid3_gds_get_input_param params = {
1031 .function_num = 0x1,
1032 .hotkey_number = commun_fn_key_number,
1035 struct acpi_buffer input = {
1036 sizeof(struct wmid3_gds_get_input_param),
1039 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1041 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1042 if (ACPI_FAILURE(status))
1045 obj = output.pointer;
1049 else if (obj->type != ACPI_TYPE_BUFFER) {
1053 if (obj->buffer.length != 8) {
1054 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1059 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1062 if (return_value.error_code || return_value.ec_return_value)
1063 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1065 return_value.error_code,
1066 return_value.ec_return_value);
1068 *value = !!(return_value.devices & device);
1073 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1078 case ACER_CAP_WIRELESS:
1079 device = ACER_WMID3_GDS_WIRELESS;
1081 case ACER_CAP_BLUETOOTH:
1082 device = ACER_WMID3_GDS_BLUETOOTH;
1084 case ACER_CAP_THREEG:
1085 device = ACER_WMID3_GDS_THREEG;
1090 return wmid3_get_device_status(value, device);
1093 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1095 struct wmid3_gds_return_value return_value;
1097 union acpi_object *obj;
1099 struct wmid3_gds_get_input_param get_params = {
1100 .function_num = 0x1,
1101 .hotkey_number = commun_fn_key_number,
1102 .devices = commun_func_bitmap,
1104 struct acpi_buffer get_input = {
1105 sizeof(struct wmid3_gds_get_input_param),
1108 struct wmid3_gds_set_input_param set_params = {
1109 .function_num = 0x2,
1110 .hotkey_number = commun_fn_key_number,
1111 .devices = commun_func_bitmap,
1113 struct acpi_buffer set_input = {
1114 sizeof(struct wmid3_gds_set_input_param),
1117 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1118 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1120 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1121 if (ACPI_FAILURE(status))
1124 obj = output.pointer;
1128 else if (obj->type != ACPI_TYPE_BUFFER) {
1132 if (obj->buffer.length != 8) {
1133 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1138 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1141 if (return_value.error_code || return_value.ec_return_value) {
1142 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1143 return_value.error_code,
1144 return_value.ec_return_value);
1148 devices = return_value.devices;
1149 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1151 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1152 if (ACPI_FAILURE(status))
1155 obj = output2.pointer;
1159 else if (obj->type != ACPI_TYPE_BUFFER) {
1163 if (obj->buffer.length != 4) {
1164 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1169 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1172 if (return_value.error_code || return_value.ec_return_value)
1173 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1174 return_value.error_code,
1175 return_value.ec_return_value);
1180 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1185 case ACER_CAP_WIRELESS:
1186 device = ACER_WMID3_GDS_WIRELESS;
1188 case ACER_CAP_BLUETOOTH:
1189 device = ACER_WMID3_GDS_BLUETOOTH;
1191 case ACER_CAP_THREEG:
1192 device = ACER_WMID3_GDS_THREEG;
1197 return wmid3_set_device_status(value, device);
1200 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1202 struct hotkey_function_type_aa *type_aa;
1204 /* We are looking for OEM-specific Type AAh */
1205 if (header->type != 0xAA)
1209 type_aa = (struct hotkey_function_type_aa *) header;
1211 pr_info("Function bitmap for Communication Button: 0x%x\n",
1212 type_aa->commun_func_bitmap);
1213 commun_func_bitmap = type_aa->commun_func_bitmap;
1215 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1216 interface->capability |= ACER_CAP_WIRELESS;
1217 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1218 interface->capability |= ACER_CAP_THREEG;
1219 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1220 interface->capability |= ACER_CAP_BLUETOOTH;
1222 commun_fn_key_number = type_aa->commun_fn_key_number;
1225 static acpi_status __init WMID_set_capabilities(void)
1227 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1228 union acpi_object *obj;
1232 status = wmi_query_block(WMID_GUID2, 1, &out);
1233 if (ACPI_FAILURE(status))
1236 obj = (union acpi_object *) out.pointer;
1238 if (obj->type == ACPI_TYPE_BUFFER &&
1239 (obj->buffer.length == sizeof(u32) ||
1240 obj->buffer.length == sizeof(u64))) {
1241 devices = *((u32 *) obj->buffer.pointer);
1242 } else if (obj->type == ACPI_TYPE_INTEGER) {
1243 devices = (u32) obj->integer.value;
1253 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1255 interface->capability |= ACER_CAP_WIRELESS;
1257 interface->capability |= ACER_CAP_THREEG;
1259 interface->capability |= ACER_CAP_BLUETOOTH;
1261 if (!(devices & 0x20))
1262 max_brightness = 0x9;
1268 static struct wmi_interface wmid_interface = {
1272 static struct wmi_interface wmid_v2_interface = {
1273 .type = ACER_WMID_v2,
1277 * Generic Device (interface-independent)
1280 static acpi_status get_u32(u32 *value, u32 cap)
1282 acpi_status status = AE_ERROR;
1284 switch (interface->type) {
1286 status = AMW0_get_u32(value, cap);
1289 if (cap == ACER_CAP_MAILLED) {
1290 status = AMW0_get_u32(value, cap);
1294 status = WMID_get_u32(value, cap);
1297 if (cap & (ACER_CAP_WIRELESS |
1298 ACER_CAP_BLUETOOTH |
1300 status = wmid_v2_get_u32(value, cap);
1301 else if (wmi_has_guid(WMID_GUID2))
1302 status = WMID_get_u32(value, cap);
1309 static acpi_status set_u32(u32 value, u32 cap)
1313 if (interface->capability & cap) {
1314 switch (interface->type) {
1316 return AMW0_set_u32(value, cap);
1318 if (cap == ACER_CAP_MAILLED)
1319 return AMW0_set_u32(value, cap);
1322 * On some models, some WMID methods don't toggle
1323 * properly. For those cases, we want to run the AMW0
1324 * method afterwards to be certain we've really toggled
1327 if (cap == ACER_CAP_WIRELESS ||
1328 cap == ACER_CAP_BLUETOOTH) {
1329 status = WMID_set_u32(value, cap);
1330 if (ACPI_FAILURE(status))
1333 return AMW0_set_u32(value, cap);
1336 return WMID_set_u32(value, cap);
1338 if (cap & (ACER_CAP_WIRELESS |
1339 ACER_CAP_BLUETOOTH |
1341 return wmid_v2_set_u32(value, cap);
1342 else if (wmi_has_guid(WMID_GUID2))
1343 return WMID_set_u32(value, cap);
1345 return AE_BAD_PARAMETER;
1348 return AE_BAD_PARAMETER;
1351 static void __init acer_commandline_init(void)
1354 * These will all fail silently if the value given is invalid, or the
1355 * capability isn't available on the given interface
1358 set_u32(mailled, ACER_CAP_MAILLED);
1359 if (!has_type_aa && threeg >= 0)
1360 set_u32(threeg, ACER_CAP_THREEG);
1361 if (brightness >= 0)
1362 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1366 * LED device (Mail LED only, no other LEDs known yet)
1368 static void mail_led_set(struct led_classdev *led_cdev,
1369 enum led_brightness value)
1371 set_u32(value, ACER_CAP_MAILLED);
1374 static struct led_classdev mail_led = {
1375 .name = "acer-wmi::mail",
1376 .brightness_set = mail_led_set,
1379 static int acer_led_init(struct device *dev)
1381 return led_classdev_register(dev, &mail_led);
1384 static void acer_led_exit(void)
1386 set_u32(LED_OFF, ACER_CAP_MAILLED);
1387 led_classdev_unregister(&mail_led);
1393 static struct backlight_device *acer_backlight_device;
1395 static int read_brightness(struct backlight_device *bd)
1398 get_u32(&value, ACER_CAP_BRIGHTNESS);
1402 static int update_bl_status(struct backlight_device *bd)
1404 int intensity = bd->props.brightness;
1406 if (bd->props.power != FB_BLANK_UNBLANK)
1408 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1411 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1416 static const struct backlight_ops acer_bl_ops = {
1417 .get_brightness = read_brightness,
1418 .update_status = update_bl_status,
1421 static int acer_backlight_init(struct device *dev)
1423 struct backlight_properties props;
1424 struct backlight_device *bd;
1426 memset(&props, 0, sizeof(struct backlight_properties));
1427 props.type = BACKLIGHT_PLATFORM;
1428 props.max_brightness = max_brightness;
1429 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1432 pr_err("Could not register Acer backlight device\n");
1433 acer_backlight_device = NULL;
1437 acer_backlight_device = bd;
1439 bd->props.power = FB_BLANK_UNBLANK;
1440 bd->props.brightness = read_brightness(bd);
1441 backlight_update_status(bd);
1445 static void acer_backlight_exit(void)
1447 backlight_device_unregister(acer_backlight_device);
1451 * Accelerometer device
1453 static acpi_handle gsensor_handle;
1455 static int acer_gsensor_init(void)
1458 struct acpi_buffer output;
1459 union acpi_object out_obj;
1461 output.length = sizeof(out_obj);
1462 output.pointer = &out_obj;
1463 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1464 if (ACPI_FAILURE(status))
1470 static int acer_gsensor_open(struct input_dev *input)
1472 return acer_gsensor_init();
1475 static int acer_gsensor_event(void)
1478 struct acpi_buffer output;
1479 union acpi_object out_obj[5];
1481 if (!has_cap(ACER_CAP_ACCEL))
1484 output.length = sizeof(out_obj);
1485 output.pointer = out_obj;
1487 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1488 if (ACPI_FAILURE(status))
1491 if (out_obj->package.count != 4)
1494 input_report_abs(acer_wmi_accel_dev, ABS_X,
1495 (s16)out_obj->package.elements[0].integer.value);
1496 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1497 (s16)out_obj->package.elements[1].integer.value);
1498 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1499 (s16)out_obj->package.elements[2].integer.value);
1500 input_sync(acer_wmi_accel_dev);
1507 static void acer_rfkill_update(struct work_struct *ignored);
1508 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1509 static void acer_rfkill_update(struct work_struct *ignored)
1514 if (has_cap(ACER_CAP_WIRELESS)) {
1515 status = get_u32(&state, ACER_CAP_WIRELESS);
1516 if (ACPI_SUCCESS(status)) {
1517 if (quirks->wireless == 3)
1518 rfkill_set_hw_state(wireless_rfkill, !state);
1520 rfkill_set_sw_state(wireless_rfkill, !state);
1524 if (has_cap(ACER_CAP_BLUETOOTH)) {
1525 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1526 if (ACPI_SUCCESS(status))
1527 rfkill_set_sw_state(bluetooth_rfkill, !state);
1530 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1531 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1532 if (ACPI_SUCCESS(status))
1533 rfkill_set_sw_state(threeg_rfkill, !state);
1536 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1539 static int acer_rfkill_set(void *data, bool blocked)
1542 u32 cap = (unsigned long)data;
1544 if (rfkill_inited) {
1545 status = set_u32(!blocked, cap);
1546 if (ACPI_FAILURE(status))
1553 static const struct rfkill_ops acer_rfkill_ops = {
1554 .set_block = acer_rfkill_set,
1557 static struct rfkill *acer_rfkill_register(struct device *dev,
1558 enum rfkill_type type,
1559 char *name, u32 cap)
1562 struct rfkill *rfkill_dev;
1566 rfkill_dev = rfkill_alloc(name, dev, type,
1568 (void *)(unsigned long)cap);
1570 return ERR_PTR(-ENOMEM);
1572 status = get_u32(&state, cap);
1574 err = rfkill_register(rfkill_dev);
1576 rfkill_destroy(rfkill_dev);
1577 return ERR_PTR(err);
1580 if (ACPI_SUCCESS(status))
1581 rfkill_set_sw_state(rfkill_dev, !state);
1586 static int acer_rfkill_init(struct device *dev)
1590 if (has_cap(ACER_CAP_WIRELESS)) {
1591 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1592 "acer-wireless", ACER_CAP_WIRELESS);
1593 if (IS_ERR(wireless_rfkill)) {
1594 err = PTR_ERR(wireless_rfkill);
1595 goto error_wireless;
1599 if (has_cap(ACER_CAP_BLUETOOTH)) {
1600 bluetooth_rfkill = acer_rfkill_register(dev,
1601 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1602 ACER_CAP_BLUETOOTH);
1603 if (IS_ERR(bluetooth_rfkill)) {
1604 err = PTR_ERR(bluetooth_rfkill);
1605 goto error_bluetooth;
1609 if (has_cap(ACER_CAP_THREEG)) {
1610 threeg_rfkill = acer_rfkill_register(dev,
1611 RFKILL_TYPE_WWAN, "acer-threeg",
1613 if (IS_ERR(threeg_rfkill)) {
1614 err = PTR_ERR(threeg_rfkill);
1619 rfkill_inited = true;
1621 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1622 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1623 schedule_delayed_work(&acer_rfkill_work,
1624 round_jiffies_relative(HZ));
1629 if (has_cap(ACER_CAP_BLUETOOTH)) {
1630 rfkill_unregister(bluetooth_rfkill);
1631 rfkill_destroy(bluetooth_rfkill);
1634 if (has_cap(ACER_CAP_WIRELESS)) {
1635 rfkill_unregister(wireless_rfkill);
1636 rfkill_destroy(wireless_rfkill);
1642 static void acer_rfkill_exit(void)
1644 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1645 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1646 cancel_delayed_work_sync(&acer_rfkill_work);
1648 if (has_cap(ACER_CAP_WIRELESS)) {
1649 rfkill_unregister(wireless_rfkill);
1650 rfkill_destroy(wireless_rfkill);
1653 if (has_cap(ACER_CAP_BLUETOOTH)) {
1654 rfkill_unregister(bluetooth_rfkill);
1655 rfkill_destroy(bluetooth_rfkill);
1658 if (has_cap(ACER_CAP_THREEG)) {
1659 rfkill_unregister(threeg_rfkill);
1660 rfkill_destroy(threeg_rfkill);
1668 static ssize_t show_bool_threeg(struct device *dev,
1669 struct device_attribute *attr, char *buf)
1674 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1676 status = get_u32(&result, ACER_CAP_THREEG);
1677 if (ACPI_SUCCESS(status))
1678 return sprintf(buf, "%u\n", result);
1679 return sprintf(buf, "Read error\n");
1682 static ssize_t set_bool_threeg(struct device *dev,
1683 struct device_attribute *attr, const char *buf, size_t count)
1685 u32 tmp = simple_strtoul(buf, NULL, 10);
1686 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1687 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1689 if (ACPI_FAILURE(status))
1693 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1696 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1699 pr_info("This interface sysfs will be removed in 2014 - used by: %s\n",
1701 switch (interface->type) {
1703 return sprintf(buf, "AMW0\n");
1705 return sprintf(buf, "AMW0 v2\n");
1707 return sprintf(buf, "WMID\n");
1709 return sprintf(buf, "WMID v2\n");
1711 return sprintf(buf, "Error!\n");
1715 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1717 static void acer_wmi_notify(u32 value, void *context)
1719 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1720 union acpi_object *obj;
1721 struct event_return_value return_value;
1724 const struct key_entry *key;
1727 status = wmi_get_event_data(value, &response);
1728 if (status != AE_OK) {
1729 pr_warn("bad event status 0x%x\n", status);
1733 obj = (union acpi_object *)response.pointer;
1737 if (obj->type != ACPI_TYPE_BUFFER) {
1738 pr_warn("Unknown response received %d\n", obj->type);
1742 if (obj->buffer.length != 8) {
1743 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1748 return_value = *((struct event_return_value *)obj->buffer.pointer);
1751 switch (return_value.function) {
1752 case WMID_HOTKEY_EVENT:
1753 device_state = return_value.device_state;
1754 pr_debug("device state: 0x%x\n", device_state);
1756 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1757 return_value.key_num);
1759 pr_warn("Unknown key number - 0x%x\n",
1760 return_value.key_num);
1762 scancode = return_value.key_num;
1763 switch (key->keycode) {
1766 if (has_cap(ACER_CAP_WIRELESS))
1767 rfkill_set_sw_state(wireless_rfkill,
1768 !(device_state & ACER_WMID3_GDS_WIRELESS));
1769 if (has_cap(ACER_CAP_THREEG))
1770 rfkill_set_sw_state(threeg_rfkill,
1771 !(device_state & ACER_WMID3_GDS_THREEG));
1772 if (has_cap(ACER_CAP_BLUETOOTH))
1773 rfkill_set_sw_state(bluetooth_rfkill,
1774 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1776 case KEY_TOUCHPAD_TOGGLE:
1777 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1778 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1780 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1783 case WMID_ACCEL_EVENT:
1784 acer_gsensor_event();
1787 pr_warn("Unknown function number - %d - %d\n",
1788 return_value.function, return_value.key_num);
1793 static acpi_status __init
1794 wmid3_set_lm_mode(struct lm_input_params *params,
1795 struct lm_return_value *return_value)
1798 union acpi_object *obj;
1800 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1801 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1803 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1804 if (ACPI_FAILURE(status))
1807 obj = output.pointer;
1811 else if (obj->type != ACPI_TYPE_BUFFER) {
1815 if (obj->buffer.length != 4) {
1816 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1821 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1827 static int __init acer_wmi_enable_ec_raw(void)
1829 struct lm_return_value return_value;
1831 struct lm_input_params params = {
1832 .function_num = 0x1,
1833 .commun_devices = 0xFFFF,
1835 .lm_status = 0x00, /* Launch Manager Deactive */
1838 status = wmid3_set_lm_mode(¶ms, &return_value);
1840 if (return_value.error_code || return_value.ec_return_value)
1841 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1842 return_value.error_code,
1843 return_value.ec_return_value);
1845 pr_info("Enabled EC raw mode\n");
1850 static int __init acer_wmi_enable_lm(void)
1852 struct lm_return_value return_value;
1854 struct lm_input_params params = {
1855 .function_num = 0x1,
1856 .commun_devices = 0xFFFF,
1858 .lm_status = 0x01, /* Launch Manager Active */
1861 status = wmid3_set_lm_mode(¶ms, &return_value);
1863 if (return_value.error_code || return_value.ec_return_value)
1864 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1865 return_value.error_code,
1866 return_value.ec_return_value);
1871 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1872 void *ctx, void **retval)
1874 *(acpi_handle *)retval = ah;
1878 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1884 BUG_ON(!name || !ah);
1887 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1888 (void *)name, &handle);
1890 if (ACPI_SUCCESS(status)) {
1898 static int __init acer_wmi_accel_setup(void)
1902 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1906 interface->capability |= ACER_CAP_ACCEL;
1908 acer_wmi_accel_dev = input_allocate_device();
1909 if (!acer_wmi_accel_dev)
1912 acer_wmi_accel_dev->open = acer_gsensor_open;
1914 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1915 acer_wmi_accel_dev->phys = "wmi/input1";
1916 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1917 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1918 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1919 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1920 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1922 err = input_register_device(acer_wmi_accel_dev);
1929 input_free_device(acer_wmi_accel_dev);
1933 static void acer_wmi_accel_destroy(void)
1935 input_unregister_device(acer_wmi_accel_dev);
1938 static int __init acer_wmi_input_setup(void)
1943 acer_wmi_input_dev = input_allocate_device();
1944 if (!acer_wmi_input_dev)
1947 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1948 acer_wmi_input_dev->phys = "wmi/input0";
1949 acer_wmi_input_dev->id.bustype = BUS_HOST;
1951 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1955 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1956 acer_wmi_notify, NULL);
1957 if (ACPI_FAILURE(status)) {
1959 goto err_free_keymap;
1962 err = input_register_device(acer_wmi_input_dev);
1964 goto err_uninstall_notifier;
1968 err_uninstall_notifier:
1969 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1971 sparse_keymap_free(acer_wmi_input_dev);
1973 input_free_device(acer_wmi_input_dev);
1977 static void acer_wmi_input_destroy(void)
1979 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1980 sparse_keymap_free(acer_wmi_input_dev);
1981 input_unregister_device(acer_wmi_input_dev);
1987 static u32 get_wmid_devices(void)
1989 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1990 union acpi_object *obj;
1994 status = wmi_query_block(WMID_GUID2, 1, &out);
1995 if (ACPI_FAILURE(status))
1998 obj = (union acpi_object *) out.pointer;
2000 if (obj->type == ACPI_TYPE_BUFFER &&
2001 (obj->buffer.length == sizeof(u32) ||
2002 obj->buffer.length == sizeof(u64))) {
2003 devices = *((u32 *) obj->buffer.pointer);
2004 } else if (obj->type == ACPI_TYPE_INTEGER) {
2005 devices = (u32) obj->integer.value;
2016 static int acer_platform_probe(struct platform_device *device)
2020 if (has_cap(ACER_CAP_MAILLED)) {
2021 err = acer_led_init(&device->dev);
2026 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2027 err = acer_backlight_init(&device->dev);
2029 goto error_brightness;
2032 err = acer_rfkill_init(&device->dev);
2039 if (has_cap(ACER_CAP_BRIGHTNESS))
2040 acer_backlight_exit();
2042 if (has_cap(ACER_CAP_MAILLED))
2048 static int acer_platform_remove(struct platform_device *device)
2050 if (has_cap(ACER_CAP_MAILLED))
2052 if (has_cap(ACER_CAP_BRIGHTNESS))
2053 acer_backlight_exit();
2059 #ifdef CONFIG_PM_SLEEP
2060 static int acer_suspend(struct device *dev)
2063 struct acer_data *data = &interface->data;
2068 if (has_cap(ACER_CAP_MAILLED)) {
2069 get_u32(&value, ACER_CAP_MAILLED);
2070 set_u32(LED_OFF, ACER_CAP_MAILLED);
2071 data->mailled = value;
2074 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2075 get_u32(&value, ACER_CAP_BRIGHTNESS);
2076 data->brightness = value;
2082 static int acer_resume(struct device *dev)
2084 struct acer_data *data = &interface->data;
2089 if (has_cap(ACER_CAP_MAILLED))
2090 set_u32(data->mailled, ACER_CAP_MAILLED);
2092 if (has_cap(ACER_CAP_BRIGHTNESS))
2093 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2095 if (has_cap(ACER_CAP_ACCEL))
2096 acer_gsensor_init();
2101 #define acer_suspend NULL
2102 #define acer_resume NULL
2105 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2107 static void acer_platform_shutdown(struct platform_device *device)
2109 struct acer_data *data = &interface->data;
2114 if (has_cap(ACER_CAP_MAILLED))
2115 set_u32(LED_OFF, ACER_CAP_MAILLED);
2118 static struct platform_driver acer_platform_driver = {
2123 .probe = acer_platform_probe,
2124 .remove = acer_platform_remove,
2125 .shutdown = acer_platform_shutdown,
2128 static struct platform_device *acer_platform_device;
2130 static int remove_sysfs(struct platform_device *device)
2132 if (has_cap(ACER_CAP_THREEG))
2133 device_remove_file(&device->dev, &dev_attr_threeg);
2135 device_remove_file(&device->dev, &dev_attr_interface);
2140 static int __init create_sysfs(void)
2142 int retval = -ENOMEM;
2144 if (has_cap(ACER_CAP_THREEG)) {
2145 retval = device_create_file(&acer_platform_device->dev,
2151 retval = device_create_file(&acer_platform_device->dev,
2152 &dev_attr_interface);
2159 remove_sysfs(acer_platform_device);
2163 static void remove_debugfs(void)
2165 debugfs_remove(interface->debug.devices);
2166 debugfs_remove(interface->debug.root);
2169 static int __init create_debugfs(void)
2171 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2172 if (!interface->debug.root) {
2173 pr_err("Failed to create debugfs directory");
2177 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2178 interface->debug.root,
2179 &interface->debug.wmid_devices);
2180 if (!interface->debug.devices)
2190 static int __init acer_wmi_init(void)
2194 pr_info("Acer Laptop ACPI-WMI Extras\n");
2196 if (dmi_check_system(acer_blacklist)) {
2197 pr_info("Blacklisted hardware detected - not loading\n");
2204 * Detect which ACPI-WMI interface we're using.
2206 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2207 interface = &AMW0_V2_interface;
2209 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2210 interface = &wmid_interface;
2212 if (wmi_has_guid(WMID_GUID3))
2213 interface = &wmid_v2_interface;
2216 dmi_walk(type_aa_dmi_decode, NULL);
2218 if (wmi_has_guid(WMID_GUID2) && interface) {
2219 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2220 pr_err("Unable to detect available WMID devices\n");
2223 /* WMID always provides brightness methods */
2224 interface->capability |= ACER_CAP_BRIGHTNESS;
2225 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2226 pr_err("No WMID device detection method found\n");
2230 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2231 interface = &AMW0_interface;
2233 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2234 pr_err("Unable to detect available AMW0 devices\n");
2239 if (wmi_has_guid(AMW0_GUID1))
2240 AMW0_find_mailled();
2243 pr_err("No or unsupported WMI interface, unable to load\n");
2249 if (dmi_check_system(video_vendor_dmi_table))
2250 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2252 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2253 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2255 if (wmi_has_guid(WMID_GUID3)) {
2257 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2258 pr_err("Cannot enable EC raw mode\n");
2261 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2262 pr_err("Cannot enable Launch Manager mode\n");
2265 } else if (ec_raw_mode) {
2266 pr_info("No WMID EC raw mode enable method\n");
2269 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2270 err = acer_wmi_input_setup();
2275 acer_wmi_accel_setup();
2277 err = platform_driver_register(&acer_platform_driver);
2279 pr_err("Unable to register platform driver\n");
2280 goto error_platform_register;
2283 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2284 if (!acer_platform_device) {
2286 goto error_device_alloc;
2289 err = platform_device_add(acer_platform_device);
2291 goto error_device_add;
2293 err = create_sysfs();
2295 goto error_create_sys;
2297 if (wmi_has_guid(WMID_GUID2)) {
2298 interface->debug.wmid_devices = get_wmid_devices();
2299 err = create_debugfs();
2301 goto error_create_debugfs;
2304 /* Override any initial settings with values from the commandline */
2305 acer_commandline_init();
2309 error_create_debugfs:
2310 remove_sysfs(acer_platform_device);
2312 platform_device_del(acer_platform_device);
2314 platform_device_put(acer_platform_device);
2316 platform_driver_unregister(&acer_platform_driver);
2317 error_platform_register:
2318 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2319 acer_wmi_input_destroy();
2320 if (has_cap(ACER_CAP_ACCEL))
2321 acer_wmi_accel_destroy();
2326 static void __exit acer_wmi_exit(void)
2328 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2329 acer_wmi_input_destroy();
2331 if (has_cap(ACER_CAP_ACCEL))
2332 acer_wmi_accel_destroy();
2334 remove_sysfs(acer_platform_device);
2336 platform_device_unregister(acer_platform_device);
2337 platform_driver_unregister(&acer_platform_driver);
2339 pr_info("Acer Laptop WMI Extras unloaded\n");
2343 module_init(acer_wmi_init);
2344 module_exit(acer_wmi_exit);