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_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
128 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
129 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
130 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
131 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
135 static struct input_dev *acer_wmi_input_dev;
136 static struct input_dev *acer_wmi_accel_dev;
138 struct event_return_value {
143 } __attribute__((packed));
146 * GUID3 Get Device Status device flags
148 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
149 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
150 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
151 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
152 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
154 struct lm_input_params {
155 u8 function_num; /* Function Number */
156 u16 commun_devices; /* Communication type devices default status */
157 u16 devices; /* Other type devices default status */
158 u8 lm_status; /* Launch Manager Status */
160 } __attribute__((packed));
162 struct lm_return_value {
163 u8 error_code; /* Error Code */
164 u8 ec_return_value; /* EC Return Value */
166 } __attribute__((packed));
168 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
169 u8 function_num; /* Function Number */
170 u8 hotkey_number; /* Hotkey Number */
171 u16 devices; /* Set Device */
172 u8 volume_value; /* Volume Value */
173 } __attribute__((packed));
175 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
176 u8 function_num; /* Function Number */
177 u8 hotkey_number; /* Hotkey Number */
178 u16 devices; /* Get Device */
179 } __attribute__((packed));
181 struct wmid3_gds_return_value { /* Get Device Status return value*/
182 u8 error_code; /* Error Code */
183 u8 ec_return_value; /* EC Return Value */
184 u16 devices; /* Current Device Status */
186 } __attribute__((packed));
188 struct hotkey_function_type_aa {
192 u16 commun_func_bitmap;
193 u16 application_func_bitmap;
194 u16 media_func_bitmap;
195 u16 display_func_bitmap;
196 u16 others_func_bitmap;
197 u8 commun_fn_key_number;
198 } __attribute__((packed));
201 * Interface capability flags
203 #define ACER_CAP_MAILLED (1<<0)
204 #define ACER_CAP_WIRELESS (1<<1)
205 #define ACER_CAP_BLUETOOTH (1<<2)
206 #define ACER_CAP_BRIGHTNESS (1<<3)
207 #define ACER_CAP_THREEG (1<<4)
208 #define ACER_CAP_ACCEL (1<<5)
209 #define ACER_CAP_ANY (0xFFFFFFFF)
212 * Interface type flags
214 enum interface_flags {
221 #define ACER_DEFAULT_WIRELESS 0
222 #define ACER_DEFAULT_BLUETOOTH 0
223 #define ACER_DEFAULT_MAILLED 0
224 #define ACER_DEFAULT_THREEG 0
226 static int max_brightness = 0xF;
228 static int mailled = -1;
229 static int brightness = -1;
230 static int threeg = -1;
231 static int force_series;
232 static int force_caps = -1;
233 static bool ec_raw_mode;
234 static bool has_type_aa;
235 static u16 commun_func_bitmap;
236 static u8 commun_fn_key_number;
238 module_param(mailled, int, 0444);
239 module_param(brightness, int, 0444);
240 module_param(threeg, int, 0444);
241 module_param(force_series, int, 0444);
242 module_param(force_caps, int, 0444);
243 module_param(ec_raw_mode, bool, 0444);
244 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
245 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
246 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
247 MODULE_PARM_DESC(force_series, "Force a different laptop series");
248 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
249 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
259 struct dentry *devices;
263 static struct rfkill *wireless_rfkill;
264 static struct rfkill *bluetooth_rfkill;
265 static struct rfkill *threeg_rfkill;
266 static bool rfkill_inited;
268 /* Each low-level interface must define at least some of the following */
269 struct wmi_interface {
270 /* The WMI device type */
273 /* The capabilities this interface provides */
276 /* Private data for the current interface */
277 struct acer_data data;
279 /* debugfs entries associated with this interface */
280 struct acer_debug debug;
283 /* The static interface pointer, points to the currently detected interface */
284 static struct wmi_interface *interface;
287 * Embedded Controller quirks
288 * Some laptops require us to directly access the EC to either enable or query
289 * features that are not available through WMI.
299 static struct quirk_entry *quirks;
301 static void __init set_quirks(void)
307 interface->capability |= ACER_CAP_MAILLED;
309 if (quirks->brightness)
310 interface->capability |= ACER_CAP_BRIGHTNESS;
313 static int __init dmi_matched(const struct dmi_system_id *dmi)
315 quirks = dmi->driver_data;
319 static struct quirk_entry quirk_unknown = {
322 static struct quirk_entry quirk_acer_aspire_1520 = {
326 static struct quirk_entry quirk_acer_travelmate_2490 = {
330 /* This AMW0 laptop has no bluetooth */
331 static struct quirk_entry quirk_medion_md_98300 = {
335 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
339 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
343 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
344 static const struct dmi_system_id acer_blacklist[] __initconst = {
346 .ident = "Acer Aspire One (SSD)",
348 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
349 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
353 .ident = "Acer Aspire One (HDD)",
355 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
356 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
362 static const struct dmi_system_id amw0_whitelist[] __initconst = {
366 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
372 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
376 .ident = "Packard Bell",
378 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
385 * This quirk table is only for Acer/Gateway/Packard Bell family
386 * that those machines are supported by acer-wmi driver.
388 static const struct dmi_system_id acer_quirks[] __initconst = {
390 .callback = dmi_matched,
391 .ident = "Acer Aspire 1360",
393 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
394 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
396 .driver_data = &quirk_acer_aspire_1520,
399 .callback = dmi_matched,
400 .ident = "Acer Aspire 1520",
402 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
403 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
405 .driver_data = &quirk_acer_aspire_1520,
408 .callback = dmi_matched,
409 .ident = "Acer Aspire 3100",
411 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
412 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
414 .driver_data = &quirk_acer_travelmate_2490,
417 .callback = dmi_matched,
418 .ident = "Acer Aspire 3610",
420 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
421 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
423 .driver_data = &quirk_acer_travelmate_2490,
426 .callback = dmi_matched,
427 .ident = "Acer Aspire 5100",
429 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
430 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
432 .driver_data = &quirk_acer_travelmate_2490,
435 .callback = dmi_matched,
436 .ident = "Acer Aspire 5610",
438 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
439 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
441 .driver_data = &quirk_acer_travelmate_2490,
444 .callback = dmi_matched,
445 .ident = "Acer Aspire 5630",
447 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
448 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
450 .driver_data = &quirk_acer_travelmate_2490,
453 .callback = dmi_matched,
454 .ident = "Acer Aspire 5650",
456 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
457 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
459 .driver_data = &quirk_acer_travelmate_2490,
462 .callback = dmi_matched,
463 .ident = "Acer Aspire 5680",
465 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
466 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
468 .driver_data = &quirk_acer_travelmate_2490,
471 .callback = dmi_matched,
472 .ident = "Acer Aspire 9110",
474 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
475 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
477 .driver_data = &quirk_acer_travelmate_2490,
480 .callback = dmi_matched,
481 .ident = "Acer TravelMate 2490",
483 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
484 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
486 .driver_data = &quirk_acer_travelmate_2490,
489 .callback = dmi_matched,
490 .ident = "Acer TravelMate 4200",
492 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
493 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
495 .driver_data = &quirk_acer_travelmate_2490,
501 * This quirk list is for those non-acer machines that have AMW0_GUID1
502 * but supported by acer-wmi in past days. Keeping this quirk list here
503 * is only for backward compatible. Please do not add new machine to
504 * here anymore. Those non-acer machines should be supported by
505 * appropriate wmi drivers.
507 static const struct dmi_system_id non_acer_quirks[] __initconst = {
509 .callback = dmi_matched,
510 .ident = "Fujitsu Siemens Amilo Li 1718",
512 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
513 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
515 .driver_data = &quirk_fujitsu_amilo_li_1718,
518 .callback = dmi_matched,
519 .ident = "Medion MD 98300",
521 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
522 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
524 .driver_data = &quirk_medion_md_98300,
527 .callback = dmi_matched,
528 .ident = "Lenovo Ideapad S205",
530 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
531 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
533 .driver_data = &quirk_lenovo_ideapad_s205,
536 .callback = dmi_matched,
537 .ident = "Lenovo Ideapad S205 (Brazos)",
539 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
540 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
542 .driver_data = &quirk_lenovo_ideapad_s205,
545 .callback = dmi_matched,
546 .ident = "Lenovo 3000 N200",
548 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
549 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
551 .driver_data = &quirk_fujitsu_amilo_li_1718,
554 .callback = dmi_matched,
555 .ident = "Lenovo Ideapad S205-10382JG",
557 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
558 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
560 .driver_data = &quirk_lenovo_ideapad_s205,
563 .callback = dmi_matched,
564 .ident = "Lenovo Ideapad S205-1038DPG",
566 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
567 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
569 .driver_data = &quirk_lenovo_ideapad_s205,
575 video_set_backlight_video_vendor(const struct dmi_system_id *d)
577 interface->capability &= ~ACER_CAP_BRIGHTNESS;
578 pr_info("Brightness must be controlled by generic video driver\n");
582 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
584 .callback = video_set_backlight_video_vendor,
585 .ident = "Acer TravelMate 4750",
587 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
588 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
592 .callback = video_set_backlight_video_vendor,
593 .ident = "Acer Extensa 5235",
595 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
596 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
600 .callback = video_set_backlight_video_vendor,
601 .ident = "Acer TravelMate 5760",
603 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
604 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
608 .callback = video_set_backlight_video_vendor,
609 .ident = "Acer Aspire 5750",
611 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
612 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
616 .callback = video_set_backlight_video_vendor,
617 .ident = "Acer Aspire 5741",
619 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
620 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
625 * Note no video_set_backlight_video_vendor, we must use the
626 * acer interface, as there is no native backlight interface.
628 .ident = "Acer KAV80",
630 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
631 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
637 /* Find which quirks are needed for a particular vendor/ model pair */
638 static void __init find_quirks(void)
641 dmi_check_system(acer_quirks);
642 dmi_check_system(non_acer_quirks);
643 } else if (force_series == 2490) {
644 quirks = &quirk_acer_travelmate_2490;
648 quirks = &quirk_unknown;
654 * General interface convenience methods
657 static bool has_cap(u32 cap)
659 if ((interface->capability & cap) != 0)
666 * AMW0 (V1) interface
683 static acpi_status wmab_execute(struct wmab_args *regbuf,
684 struct acpi_buffer *result)
686 struct acpi_buffer input;
688 input.length = sizeof(struct wmab_args);
689 input.pointer = (u8 *)regbuf;
691 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
696 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
702 case ACER_CAP_MAILLED:
703 switch (quirks->mailled) {
705 err = ec_read(0xA, &result);
708 *value = (result >> 7) & 0x1;
712 case ACER_CAP_WIRELESS:
713 switch (quirks->wireless) {
715 err = ec_read(0x7B, &result);
718 *value = result & 0x1;
721 err = ec_read(0x71, &result);
724 *value = result & 0x1;
727 err = ec_read(0x78, &result);
730 *value = result & 0x1;
733 err = ec_read(0xA, &result);
736 *value = (result >> 2) & 0x1;
740 case ACER_CAP_BLUETOOTH:
741 switch (quirks->bluetooth) {
743 err = ec_read(0xA, &result);
746 *value = (result >> 4) & 0x1;
750 case ACER_CAP_BRIGHTNESS:
751 switch (quirks->brightness) {
753 err = ec_read(0x83, &result);
766 static acpi_status AMW0_set_u32(u32 value, u32 cap)
768 struct wmab_args args;
770 args.eax = ACER_AMW0_WRITE;
771 args.ebx = value ? (1<<8) : 0;
772 args.ecx = args.edx = 0;
775 case ACER_CAP_MAILLED:
777 return AE_BAD_PARAMETER;
778 args.ebx |= ACER_AMW0_MAILLED_MASK;
780 case ACER_CAP_WIRELESS:
782 return AE_BAD_PARAMETER;
783 args.ebx |= ACER_AMW0_WIRELESS_MASK;
785 case ACER_CAP_BLUETOOTH:
787 return AE_BAD_PARAMETER;
788 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
790 case ACER_CAP_BRIGHTNESS:
791 if (value > max_brightness)
792 return AE_BAD_PARAMETER;
793 switch (quirks->brightness) {
795 return ec_write(0x83, value);
802 /* Actually do the set */
803 return wmab_execute(&args, NULL);
806 static acpi_status __init AMW0_find_mailled(void)
808 struct wmab_args args;
810 acpi_status status = AE_OK;
811 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
812 union acpi_object *obj;
815 args.ebx = args.ecx = args.edx = 0;
817 status = wmab_execute(&args, &out);
818 if (ACPI_FAILURE(status))
821 obj = (union acpi_object *) out.pointer;
822 if (obj && obj->type == ACPI_TYPE_BUFFER &&
823 obj->buffer.length == sizeof(struct wmab_ret)) {
824 ret = *((struct wmab_ret *) obj->buffer.pointer);
831 interface->capability |= ACER_CAP_MAILLED;
838 static const struct acpi_device_id norfkill_ids[] __initconst = {
842 { "SNY5001", 0}, /* sony-laptop in charge */
847 static int __init AMW0_set_cap_acpi_check_device(void)
849 const struct acpi_device_id *id;
851 for (id = norfkill_ids; id->id[0]; id++)
852 if (acpi_dev_found(id->id))
858 static acpi_status __init AMW0_set_capabilities(void)
860 struct wmab_args args;
863 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
864 union acpi_object *obj;
867 * On laptops with this strange GUID (non Acer), normal probing doesn't
870 if (wmi_has_guid(AMW0_GUID2)) {
871 if ((quirks != &quirk_unknown) ||
872 !AMW0_set_cap_acpi_check_device())
873 interface->capability |= ACER_CAP_WIRELESS;
877 args.eax = ACER_AMW0_WRITE;
878 args.ecx = args.edx = 0;
880 args.ebx = 0xa2 << 8;
881 args.ebx |= ACER_AMW0_WIRELESS_MASK;
883 status = wmab_execute(&args, &out);
884 if (ACPI_FAILURE(status))
888 if (obj && obj->type == ACPI_TYPE_BUFFER &&
889 obj->buffer.length == sizeof(struct wmab_ret)) {
890 ret = *((struct wmab_ret *) obj->buffer.pointer);
897 interface->capability |= ACER_CAP_WIRELESS;
900 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
903 * It's ok to use existing buffer for next wmab_execute call.
904 * But we need to kfree(out.pointer) if next wmab_execute fail.
906 status = wmab_execute(&args, &out);
907 if (ACPI_FAILURE(status))
910 obj = (union acpi_object *) out.pointer;
911 if (obj && obj->type == ACPI_TYPE_BUFFER
912 && obj->buffer.length == sizeof(struct wmab_ret)) {
913 ret = *((struct wmab_ret *) obj->buffer.pointer);
920 interface->capability |= ACER_CAP_BLUETOOTH;
923 * This appears to be safe to enable, since all Wistron based laptops
924 * appear to use the same EC register for brightness, even if they
925 * differ for wireless, etc
927 if (quirks->brightness >= 0)
928 interface->capability |= ACER_CAP_BRIGHTNESS;
936 static struct wmi_interface AMW0_interface = {
940 static struct wmi_interface AMW0_V2_interface = {
941 .type = ACER_AMW0_V2,
945 * New interface (The WMID interface)
948 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
950 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
951 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
952 union acpi_object *obj;
956 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
958 if (ACPI_FAILURE(status))
961 obj = (union acpi_object *) result.pointer;
963 if (obj->type == ACPI_TYPE_BUFFER &&
964 (obj->buffer.length == sizeof(u32) ||
965 obj->buffer.length == sizeof(u64))) {
966 tmp = *((u32 *) obj->buffer.pointer);
967 } else if (obj->type == ACPI_TYPE_INTEGER) {
968 tmp = (u32) obj->integer.value;
975 kfree(result.pointer);
980 static acpi_status WMID_get_u32(u32 *value, u32 cap)
984 u32 result, method_id = 0;
987 case ACER_CAP_WIRELESS:
988 method_id = ACER_WMID_GET_WIRELESS_METHODID;
990 case ACER_CAP_BLUETOOTH:
991 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
993 case ACER_CAP_BRIGHTNESS:
994 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
996 case ACER_CAP_THREEG:
997 method_id = ACER_WMID_GET_THREEG_METHODID;
999 case ACER_CAP_MAILLED:
1000 if (quirks->mailled == 1) {
1001 ec_read(0x9f, &tmp);
1008 status = WMI_execute_u32(method_id, 0, &result);
1010 if (ACPI_SUCCESS(status))
1011 *value = (u8)result;
1016 static acpi_status WMID_set_u32(u32 value, u32 cap)
1022 case ACER_CAP_BRIGHTNESS:
1023 if (value > max_brightness)
1024 return AE_BAD_PARAMETER;
1025 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1027 case ACER_CAP_WIRELESS:
1029 return AE_BAD_PARAMETER;
1030 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1032 case ACER_CAP_BLUETOOTH:
1034 return AE_BAD_PARAMETER;
1035 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1037 case ACER_CAP_THREEG:
1039 return AE_BAD_PARAMETER;
1040 method_id = ACER_WMID_SET_THREEG_METHODID;
1042 case ACER_CAP_MAILLED:
1044 return AE_BAD_PARAMETER;
1045 if (quirks->mailled == 1) {
1046 param = value ? 0x92 : 0x93;
1048 i8042_command(¶m, 0x1059);
1049 i8042_unlock_chip();
1056 return WMI_execute_u32(method_id, (u32)value, NULL);
1059 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1061 struct wmid3_gds_return_value return_value;
1063 union acpi_object *obj;
1064 struct wmid3_gds_get_input_param params = {
1065 .function_num = 0x1,
1066 .hotkey_number = commun_fn_key_number,
1069 struct acpi_buffer input = {
1070 sizeof(struct wmid3_gds_get_input_param),
1073 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1075 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1076 if (ACPI_FAILURE(status))
1079 obj = output.pointer;
1083 else if (obj->type != ACPI_TYPE_BUFFER) {
1087 if (obj->buffer.length != 8) {
1088 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1093 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1096 if (return_value.error_code || return_value.ec_return_value)
1097 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1099 return_value.error_code,
1100 return_value.ec_return_value);
1102 *value = !!(return_value.devices & device);
1107 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1112 case ACER_CAP_WIRELESS:
1113 device = ACER_WMID3_GDS_WIRELESS;
1115 case ACER_CAP_BLUETOOTH:
1116 device = ACER_WMID3_GDS_BLUETOOTH;
1118 case ACER_CAP_THREEG:
1119 device = ACER_WMID3_GDS_THREEG;
1124 return wmid3_get_device_status(value, device);
1127 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1129 struct wmid3_gds_return_value return_value;
1131 union acpi_object *obj;
1133 struct wmid3_gds_get_input_param get_params = {
1134 .function_num = 0x1,
1135 .hotkey_number = commun_fn_key_number,
1136 .devices = commun_func_bitmap,
1138 struct acpi_buffer get_input = {
1139 sizeof(struct wmid3_gds_get_input_param),
1142 struct wmid3_gds_set_input_param set_params = {
1143 .function_num = 0x2,
1144 .hotkey_number = commun_fn_key_number,
1145 .devices = commun_func_bitmap,
1147 struct acpi_buffer set_input = {
1148 sizeof(struct wmid3_gds_set_input_param),
1151 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1152 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1154 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1155 if (ACPI_FAILURE(status))
1158 obj = output.pointer;
1162 else if (obj->type != ACPI_TYPE_BUFFER) {
1166 if (obj->buffer.length != 8) {
1167 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1172 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1175 if (return_value.error_code || return_value.ec_return_value) {
1176 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1177 return_value.error_code,
1178 return_value.ec_return_value);
1182 devices = return_value.devices;
1183 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1185 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1186 if (ACPI_FAILURE(status))
1189 obj = output2.pointer;
1193 else if (obj->type != ACPI_TYPE_BUFFER) {
1197 if (obj->buffer.length != 4) {
1198 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1203 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1206 if (return_value.error_code || return_value.ec_return_value)
1207 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1208 return_value.error_code,
1209 return_value.ec_return_value);
1214 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1219 case ACER_CAP_WIRELESS:
1220 device = ACER_WMID3_GDS_WIRELESS;
1222 case ACER_CAP_BLUETOOTH:
1223 device = ACER_WMID3_GDS_BLUETOOTH;
1225 case ACER_CAP_THREEG:
1226 device = ACER_WMID3_GDS_THREEG;
1231 return wmid3_set_device_status(value, device);
1234 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1236 struct hotkey_function_type_aa *type_aa;
1238 /* We are looking for OEM-specific Type AAh */
1239 if (header->type != 0xAA)
1243 type_aa = (struct hotkey_function_type_aa *) header;
1245 pr_info("Function bitmap for Communication Button: 0x%x\n",
1246 type_aa->commun_func_bitmap);
1247 commun_func_bitmap = type_aa->commun_func_bitmap;
1249 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1250 interface->capability |= ACER_CAP_WIRELESS;
1251 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1252 interface->capability |= ACER_CAP_THREEG;
1253 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1254 interface->capability |= ACER_CAP_BLUETOOTH;
1256 commun_fn_key_number = type_aa->commun_fn_key_number;
1259 static acpi_status __init WMID_set_capabilities(void)
1261 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1262 union acpi_object *obj;
1266 status = wmi_query_block(WMID_GUID2, 1, &out);
1267 if (ACPI_FAILURE(status))
1270 obj = (union acpi_object *) out.pointer;
1272 if (obj->type == ACPI_TYPE_BUFFER &&
1273 (obj->buffer.length == sizeof(u32) ||
1274 obj->buffer.length == sizeof(u64))) {
1275 devices = *((u32 *) obj->buffer.pointer);
1276 } else if (obj->type == ACPI_TYPE_INTEGER) {
1277 devices = (u32) obj->integer.value;
1287 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1289 interface->capability |= ACER_CAP_WIRELESS;
1291 interface->capability |= ACER_CAP_THREEG;
1293 interface->capability |= ACER_CAP_BLUETOOTH;
1295 if (!(devices & 0x20))
1296 max_brightness = 0x9;
1302 static struct wmi_interface wmid_interface = {
1306 static struct wmi_interface wmid_v2_interface = {
1307 .type = ACER_WMID_v2,
1311 * Generic Device (interface-independent)
1314 static acpi_status get_u32(u32 *value, u32 cap)
1316 acpi_status status = AE_ERROR;
1318 switch (interface->type) {
1320 status = AMW0_get_u32(value, cap);
1323 if (cap == ACER_CAP_MAILLED) {
1324 status = AMW0_get_u32(value, cap);
1328 status = WMID_get_u32(value, cap);
1331 if (cap & (ACER_CAP_WIRELESS |
1332 ACER_CAP_BLUETOOTH |
1334 status = wmid_v2_get_u32(value, cap);
1335 else if (wmi_has_guid(WMID_GUID2))
1336 status = WMID_get_u32(value, cap);
1343 static acpi_status set_u32(u32 value, u32 cap)
1347 if (interface->capability & cap) {
1348 switch (interface->type) {
1350 return AMW0_set_u32(value, cap);
1352 if (cap == ACER_CAP_MAILLED)
1353 return AMW0_set_u32(value, cap);
1356 * On some models, some WMID methods don't toggle
1357 * properly. For those cases, we want to run the AMW0
1358 * method afterwards to be certain we've really toggled
1361 if (cap == ACER_CAP_WIRELESS ||
1362 cap == ACER_CAP_BLUETOOTH) {
1363 status = WMID_set_u32(value, cap);
1364 if (ACPI_FAILURE(status))
1367 return AMW0_set_u32(value, cap);
1370 return WMID_set_u32(value, cap);
1372 if (cap & (ACER_CAP_WIRELESS |
1373 ACER_CAP_BLUETOOTH |
1375 return wmid_v2_set_u32(value, cap);
1376 else if (wmi_has_guid(WMID_GUID2))
1377 return WMID_set_u32(value, cap);
1379 return AE_BAD_PARAMETER;
1382 return AE_BAD_PARAMETER;
1385 static void __init acer_commandline_init(void)
1388 * These will all fail silently if the value given is invalid, or the
1389 * capability isn't available on the given interface
1392 set_u32(mailled, ACER_CAP_MAILLED);
1393 if (!has_type_aa && threeg >= 0)
1394 set_u32(threeg, ACER_CAP_THREEG);
1395 if (brightness >= 0)
1396 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1400 * LED device (Mail LED only, no other LEDs known yet)
1402 static void mail_led_set(struct led_classdev *led_cdev,
1403 enum led_brightness value)
1405 set_u32(value, ACER_CAP_MAILLED);
1408 static struct led_classdev mail_led = {
1409 .name = "acer-wmi::mail",
1410 .brightness_set = mail_led_set,
1413 static int acer_led_init(struct device *dev)
1415 return led_classdev_register(dev, &mail_led);
1418 static void acer_led_exit(void)
1420 set_u32(LED_OFF, ACER_CAP_MAILLED);
1421 led_classdev_unregister(&mail_led);
1427 static struct backlight_device *acer_backlight_device;
1429 static int read_brightness(struct backlight_device *bd)
1432 get_u32(&value, ACER_CAP_BRIGHTNESS);
1436 static int update_bl_status(struct backlight_device *bd)
1438 int intensity = bd->props.brightness;
1440 if (bd->props.power != FB_BLANK_UNBLANK)
1442 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1445 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1450 static const struct backlight_ops acer_bl_ops = {
1451 .get_brightness = read_brightness,
1452 .update_status = update_bl_status,
1455 static int acer_backlight_init(struct device *dev)
1457 struct backlight_properties props;
1458 struct backlight_device *bd;
1460 memset(&props, 0, sizeof(struct backlight_properties));
1461 props.type = BACKLIGHT_PLATFORM;
1462 props.max_brightness = max_brightness;
1463 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1466 pr_err("Could not register Acer backlight device\n");
1467 acer_backlight_device = NULL;
1471 acer_backlight_device = bd;
1473 bd->props.power = FB_BLANK_UNBLANK;
1474 bd->props.brightness = read_brightness(bd);
1475 backlight_update_status(bd);
1479 static void acer_backlight_exit(void)
1481 backlight_device_unregister(acer_backlight_device);
1485 * Accelerometer device
1487 static acpi_handle gsensor_handle;
1489 static int acer_gsensor_init(void)
1492 struct acpi_buffer output;
1493 union acpi_object out_obj;
1495 output.length = sizeof(out_obj);
1496 output.pointer = &out_obj;
1497 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1498 if (ACPI_FAILURE(status))
1504 static int acer_gsensor_open(struct input_dev *input)
1506 return acer_gsensor_init();
1509 static int acer_gsensor_event(void)
1512 struct acpi_buffer output;
1513 union acpi_object out_obj[5];
1515 if (!has_cap(ACER_CAP_ACCEL))
1518 output.length = sizeof(out_obj);
1519 output.pointer = out_obj;
1521 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1522 if (ACPI_FAILURE(status))
1525 if (out_obj->package.count != 4)
1528 input_report_abs(acer_wmi_accel_dev, ABS_X,
1529 (s16)out_obj->package.elements[0].integer.value);
1530 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1531 (s16)out_obj->package.elements[1].integer.value);
1532 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1533 (s16)out_obj->package.elements[2].integer.value);
1534 input_sync(acer_wmi_accel_dev);
1541 static void acer_rfkill_update(struct work_struct *ignored);
1542 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1543 static void acer_rfkill_update(struct work_struct *ignored)
1548 if (has_cap(ACER_CAP_WIRELESS)) {
1549 status = get_u32(&state, ACER_CAP_WIRELESS);
1550 if (ACPI_SUCCESS(status)) {
1551 if (quirks->wireless == 3)
1552 rfkill_set_hw_state(wireless_rfkill, !state);
1554 rfkill_set_sw_state(wireless_rfkill, !state);
1558 if (has_cap(ACER_CAP_BLUETOOTH)) {
1559 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1560 if (ACPI_SUCCESS(status))
1561 rfkill_set_sw_state(bluetooth_rfkill, !state);
1564 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1565 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1566 if (ACPI_SUCCESS(status))
1567 rfkill_set_sw_state(threeg_rfkill, !state);
1570 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1573 static int acer_rfkill_set(void *data, bool blocked)
1576 u32 cap = (unsigned long)data;
1578 if (rfkill_inited) {
1579 status = set_u32(!blocked, cap);
1580 if (ACPI_FAILURE(status))
1587 static const struct rfkill_ops acer_rfkill_ops = {
1588 .set_block = acer_rfkill_set,
1591 static struct rfkill *acer_rfkill_register(struct device *dev,
1592 enum rfkill_type type,
1593 char *name, u32 cap)
1596 struct rfkill *rfkill_dev;
1600 rfkill_dev = rfkill_alloc(name, dev, type,
1602 (void *)(unsigned long)cap);
1604 return ERR_PTR(-ENOMEM);
1606 status = get_u32(&state, cap);
1608 err = rfkill_register(rfkill_dev);
1610 rfkill_destroy(rfkill_dev);
1611 return ERR_PTR(err);
1614 if (ACPI_SUCCESS(status))
1615 rfkill_set_sw_state(rfkill_dev, !state);
1620 static int acer_rfkill_init(struct device *dev)
1624 if (has_cap(ACER_CAP_WIRELESS)) {
1625 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1626 "acer-wireless", ACER_CAP_WIRELESS);
1627 if (IS_ERR(wireless_rfkill)) {
1628 err = PTR_ERR(wireless_rfkill);
1629 goto error_wireless;
1633 if (has_cap(ACER_CAP_BLUETOOTH)) {
1634 bluetooth_rfkill = acer_rfkill_register(dev,
1635 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1636 ACER_CAP_BLUETOOTH);
1637 if (IS_ERR(bluetooth_rfkill)) {
1638 err = PTR_ERR(bluetooth_rfkill);
1639 goto error_bluetooth;
1643 if (has_cap(ACER_CAP_THREEG)) {
1644 threeg_rfkill = acer_rfkill_register(dev,
1645 RFKILL_TYPE_WWAN, "acer-threeg",
1647 if (IS_ERR(threeg_rfkill)) {
1648 err = PTR_ERR(threeg_rfkill);
1653 rfkill_inited = true;
1655 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1656 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1657 schedule_delayed_work(&acer_rfkill_work,
1658 round_jiffies_relative(HZ));
1663 if (has_cap(ACER_CAP_BLUETOOTH)) {
1664 rfkill_unregister(bluetooth_rfkill);
1665 rfkill_destroy(bluetooth_rfkill);
1668 if (has_cap(ACER_CAP_WIRELESS)) {
1669 rfkill_unregister(wireless_rfkill);
1670 rfkill_destroy(wireless_rfkill);
1676 static void acer_rfkill_exit(void)
1678 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1679 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1680 cancel_delayed_work_sync(&acer_rfkill_work);
1682 if (has_cap(ACER_CAP_WIRELESS)) {
1683 rfkill_unregister(wireless_rfkill);
1684 rfkill_destroy(wireless_rfkill);
1687 if (has_cap(ACER_CAP_BLUETOOTH)) {
1688 rfkill_unregister(bluetooth_rfkill);
1689 rfkill_destroy(bluetooth_rfkill);
1692 if (has_cap(ACER_CAP_THREEG)) {
1693 rfkill_unregister(threeg_rfkill);
1694 rfkill_destroy(threeg_rfkill);
1699 static void acer_wmi_notify(u32 value, void *context)
1701 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1702 union acpi_object *obj;
1703 struct event_return_value return_value;
1706 const struct key_entry *key;
1709 status = wmi_get_event_data(value, &response);
1710 if (status != AE_OK) {
1711 pr_warn("bad event status 0x%x\n", status);
1715 obj = (union acpi_object *)response.pointer;
1719 if (obj->type != ACPI_TYPE_BUFFER) {
1720 pr_warn("Unknown response received %d\n", obj->type);
1724 if (obj->buffer.length != 8) {
1725 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1730 return_value = *((struct event_return_value *)obj->buffer.pointer);
1733 switch (return_value.function) {
1734 case WMID_HOTKEY_EVENT:
1735 device_state = return_value.device_state;
1736 pr_debug("device state: 0x%x\n", device_state);
1738 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1739 return_value.key_num);
1741 pr_warn("Unknown key number - 0x%x\n",
1742 return_value.key_num);
1744 scancode = return_value.key_num;
1745 switch (key->keycode) {
1748 if (has_cap(ACER_CAP_WIRELESS))
1749 rfkill_set_sw_state(wireless_rfkill,
1750 !(device_state & ACER_WMID3_GDS_WIRELESS));
1751 if (has_cap(ACER_CAP_THREEG))
1752 rfkill_set_sw_state(threeg_rfkill,
1753 !(device_state & ACER_WMID3_GDS_THREEG));
1754 if (has_cap(ACER_CAP_BLUETOOTH))
1755 rfkill_set_sw_state(bluetooth_rfkill,
1756 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1758 case KEY_TOUCHPAD_TOGGLE:
1759 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1760 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1762 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1765 case WMID_ACCEL_EVENT:
1766 acer_gsensor_event();
1769 pr_warn("Unknown function number - %d - %d\n",
1770 return_value.function, return_value.key_num);
1775 static acpi_status __init
1776 wmid3_set_lm_mode(struct lm_input_params *params,
1777 struct lm_return_value *return_value)
1780 union acpi_object *obj;
1782 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1783 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1785 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1786 if (ACPI_FAILURE(status))
1789 obj = output.pointer;
1793 else if (obj->type != ACPI_TYPE_BUFFER) {
1797 if (obj->buffer.length != 4) {
1798 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1803 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1809 static int __init acer_wmi_enable_ec_raw(void)
1811 struct lm_return_value return_value;
1813 struct lm_input_params params = {
1814 .function_num = 0x1,
1815 .commun_devices = 0xFFFF,
1817 .lm_status = 0x00, /* Launch Manager Deactive */
1820 status = wmid3_set_lm_mode(¶ms, &return_value);
1822 if (return_value.error_code || return_value.ec_return_value)
1823 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1824 return_value.error_code,
1825 return_value.ec_return_value);
1827 pr_info("Enabled EC raw mode\n");
1832 static int __init acer_wmi_enable_lm(void)
1834 struct lm_return_value return_value;
1836 struct lm_input_params params = {
1837 .function_num = 0x1,
1838 .commun_devices = 0xFFFF,
1840 .lm_status = 0x01, /* Launch Manager Active */
1843 status = wmid3_set_lm_mode(¶ms, &return_value);
1845 if (return_value.error_code || return_value.ec_return_value)
1846 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1847 return_value.error_code,
1848 return_value.ec_return_value);
1853 #define ACER_WMID_ACCEL_HID "BST0001"
1855 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1856 void *ctx, void **retval)
1858 struct acpi_device *dev;
1860 if (!strcmp(ctx, "SENR")) {
1861 if (acpi_bus_get_device(ah, &dev))
1863 if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
1868 *(acpi_handle *)retval = ah;
1870 return AE_CTRL_TERMINATE;
1873 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1879 BUG_ON(!name || !ah);
1882 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1883 (void *)name, &handle);
1884 if (ACPI_SUCCESS(status) && handle) {
1892 static int __init acer_wmi_accel_setup(void)
1896 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
1900 interface->capability |= ACER_CAP_ACCEL;
1902 acer_wmi_accel_dev = input_allocate_device();
1903 if (!acer_wmi_accel_dev)
1906 acer_wmi_accel_dev->open = acer_gsensor_open;
1908 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1909 acer_wmi_accel_dev->phys = "wmi/input1";
1910 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1911 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1912 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1913 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1914 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1916 err = input_register_device(acer_wmi_accel_dev);
1923 input_free_device(acer_wmi_accel_dev);
1927 static void acer_wmi_accel_destroy(void)
1929 input_unregister_device(acer_wmi_accel_dev);
1932 static int __init acer_wmi_input_setup(void)
1937 acer_wmi_input_dev = input_allocate_device();
1938 if (!acer_wmi_input_dev)
1941 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1942 acer_wmi_input_dev->phys = "wmi/input0";
1943 acer_wmi_input_dev->id.bustype = BUS_HOST;
1945 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1949 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1950 acer_wmi_notify, NULL);
1951 if (ACPI_FAILURE(status)) {
1953 goto err_free_keymap;
1956 err = input_register_device(acer_wmi_input_dev);
1958 goto err_uninstall_notifier;
1962 err_uninstall_notifier:
1963 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1965 sparse_keymap_free(acer_wmi_input_dev);
1967 input_free_device(acer_wmi_input_dev);
1971 static void acer_wmi_input_destroy(void)
1973 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1974 sparse_keymap_free(acer_wmi_input_dev);
1975 input_unregister_device(acer_wmi_input_dev);
1981 static u32 get_wmid_devices(void)
1983 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1984 union acpi_object *obj;
1988 status = wmi_query_block(WMID_GUID2, 1, &out);
1989 if (ACPI_FAILURE(status))
1992 obj = (union acpi_object *) out.pointer;
1994 if (obj->type == ACPI_TYPE_BUFFER &&
1995 (obj->buffer.length == sizeof(u32) ||
1996 obj->buffer.length == sizeof(u64))) {
1997 devices = *((u32 *) obj->buffer.pointer);
1998 } else if (obj->type == ACPI_TYPE_INTEGER) {
1999 devices = (u32) obj->integer.value;
2010 static int acer_platform_probe(struct platform_device *device)
2014 if (has_cap(ACER_CAP_MAILLED)) {
2015 err = acer_led_init(&device->dev);
2020 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2021 err = acer_backlight_init(&device->dev);
2023 goto error_brightness;
2026 err = acer_rfkill_init(&device->dev);
2033 if (has_cap(ACER_CAP_BRIGHTNESS))
2034 acer_backlight_exit();
2036 if (has_cap(ACER_CAP_MAILLED))
2042 static int acer_platform_remove(struct platform_device *device)
2044 if (has_cap(ACER_CAP_MAILLED))
2046 if (has_cap(ACER_CAP_BRIGHTNESS))
2047 acer_backlight_exit();
2053 #ifdef CONFIG_PM_SLEEP
2054 static int acer_suspend(struct device *dev)
2057 struct acer_data *data = &interface->data;
2062 if (has_cap(ACER_CAP_MAILLED)) {
2063 get_u32(&value, ACER_CAP_MAILLED);
2064 set_u32(LED_OFF, ACER_CAP_MAILLED);
2065 data->mailled = value;
2068 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2069 get_u32(&value, ACER_CAP_BRIGHTNESS);
2070 data->brightness = value;
2076 static int acer_resume(struct device *dev)
2078 struct acer_data *data = &interface->data;
2083 if (has_cap(ACER_CAP_MAILLED))
2084 set_u32(data->mailled, ACER_CAP_MAILLED);
2086 if (has_cap(ACER_CAP_BRIGHTNESS))
2087 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2089 if (has_cap(ACER_CAP_ACCEL))
2090 acer_gsensor_init();
2095 #define acer_suspend NULL
2096 #define acer_resume NULL
2099 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2101 static void acer_platform_shutdown(struct platform_device *device)
2103 struct acer_data *data = &interface->data;
2108 if (has_cap(ACER_CAP_MAILLED))
2109 set_u32(LED_OFF, ACER_CAP_MAILLED);
2112 static struct platform_driver acer_platform_driver = {
2117 .probe = acer_platform_probe,
2118 .remove = acer_platform_remove,
2119 .shutdown = acer_platform_shutdown,
2122 static struct platform_device *acer_platform_device;
2124 static void remove_debugfs(void)
2126 debugfs_remove(interface->debug.devices);
2127 debugfs_remove(interface->debug.root);
2130 static int __init create_debugfs(void)
2132 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2133 if (!interface->debug.root) {
2134 pr_err("Failed to create debugfs directory");
2138 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2139 interface->debug.root,
2140 &interface->debug.wmid_devices);
2141 if (!interface->debug.devices)
2151 static int __init acer_wmi_init(void)
2155 pr_info("Acer Laptop ACPI-WMI Extras\n");
2157 if (dmi_check_system(acer_blacklist)) {
2158 pr_info("Blacklisted hardware detected - not loading\n");
2165 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2166 * machines like Lenovo, Fujitsu and Medion. In the past days,
2167 * acer-wmi driver handled those non-Acer machines by quirks list.
2168 * But actually acer-wmi driver was loaded on any machines that have
2169 * AMW0_GUID1. This behavior is strange because those machines should
2170 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2171 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2172 * should be in Acer/Gateway/Packard Bell white list, or it's already
2173 * in the past quirk list.
2175 if (wmi_has_guid(AMW0_GUID1) &&
2176 !dmi_check_system(amw0_whitelist) &&
2177 quirks == &quirk_unknown) {
2178 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
2183 * Detect which ACPI-WMI interface we're using.
2185 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2186 interface = &AMW0_V2_interface;
2188 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2189 interface = &wmid_interface;
2191 if (wmi_has_guid(WMID_GUID3))
2192 interface = &wmid_v2_interface;
2195 dmi_walk(type_aa_dmi_decode, NULL);
2197 if (wmi_has_guid(WMID_GUID2) && interface) {
2198 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2199 pr_err("Unable to detect available WMID devices\n");
2202 /* WMID always provides brightness methods */
2203 interface->capability |= ACER_CAP_BRIGHTNESS;
2204 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2205 pr_err("No WMID device detection method found\n");
2209 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2210 interface = &AMW0_interface;
2212 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2213 pr_err("Unable to detect available AMW0 devices\n");
2218 if (wmi_has_guid(AMW0_GUID1))
2219 AMW0_find_mailled();
2222 pr_err("No or unsupported WMI interface, unable to load\n");
2228 if (dmi_check_system(video_vendor_dmi_table))
2229 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2231 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2232 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2234 if (force_caps != -1)
2235 interface->capability = force_caps;
2237 if (wmi_has_guid(WMID_GUID3)) {
2239 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2240 pr_err("Cannot enable EC raw mode\n");
2243 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2244 pr_err("Cannot enable Launch Manager mode\n");
2247 } else if (ec_raw_mode) {
2248 pr_info("No WMID EC raw mode enable method\n");
2251 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2252 err = acer_wmi_input_setup();
2255 err = acer_wmi_accel_setup();
2256 if (err && err != -ENODEV)
2257 pr_warn("Cannot enable accelerometer\n");
2260 err = platform_driver_register(&acer_platform_driver);
2262 pr_err("Unable to register platform driver\n");
2263 goto error_platform_register;
2266 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2267 if (!acer_platform_device) {
2269 goto error_device_alloc;
2272 err = platform_device_add(acer_platform_device);
2274 goto error_device_add;
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 platform_device_del(acer_platform_device);
2291 platform_device_put(acer_platform_device);
2293 platform_driver_unregister(&acer_platform_driver);
2294 error_platform_register:
2295 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2296 acer_wmi_input_destroy();
2297 if (has_cap(ACER_CAP_ACCEL))
2298 acer_wmi_accel_destroy();
2303 static void __exit acer_wmi_exit(void)
2305 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2306 acer_wmi_input_destroy();
2308 if (has_cap(ACER_CAP_ACCEL))
2309 acer_wmi_accel_destroy();
2312 platform_device_unregister(acer_platform_device);
2313 platform_driver_unregister(&acer_platform_driver);
2315 pr_info("Acer Laptop WMI Extras unloaded\n");
2319 module_init(acer_wmi_init);
2320 module_exit(acer_wmi_exit);