/drivers/platform/x86/acer-wmi.c
C | 2295 lines | 1820 code | 321 blank | 154 comment | 294 complexity | 40a1773a978edefdddf0f1ddd3dff9e9 MD5 | raw file
Possible License(s): AGPL-1.0, GPL-2.0, LGPL-2.0
- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Acer WMI Laptop Extras
- *
- * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
- *
- * Based on acer_acpi:
- * Copyright (C) 2005-2007 E.M. Smith
- * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
- */
- #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/types.h>
- #include <linux/dmi.h>
- #include <linux/fb.h>
- #include <linux/backlight.h>
- #include <linux/leds.h>
- #include <linux/platform_device.h>
- #include <linux/acpi.h>
- #include <linux/i8042.h>
- #include <linux/rfkill.h>
- #include <linux/workqueue.h>
- #include <linux/debugfs.h>
- #include <linux/slab.h>
- #include <linux/input.h>
- #include <linux/input/sparse-keymap.h>
- #include <acpi/video.h>
- MODULE_AUTHOR("Carlos Corbacho");
- MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
- MODULE_LICENSE("GPL");
- /*
- * Magic Number
- * Meaning is unknown - this number is required for writing to ACPI for AMW0
- * (it's also used in acerhk when directly accessing the BIOS)
- */
- #define ACER_AMW0_WRITE 0x9610
- /*
- * Bit masks for the AMW0 interface
- */
- #define ACER_AMW0_WIRELESS_MASK 0x35
- #define ACER_AMW0_BLUETOOTH_MASK 0x34
- #define ACER_AMW0_MAILLED_MASK 0x31
- /*
- * Method IDs for WMID interface
- */
- #define ACER_WMID_GET_WIRELESS_METHODID 1
- #define ACER_WMID_GET_BLUETOOTH_METHODID 2
- #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
- #define ACER_WMID_SET_WIRELESS_METHODID 4
- #define ACER_WMID_SET_BLUETOOTH_METHODID 5
- #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
- #define ACER_WMID_GET_THREEG_METHODID 10
- #define ACER_WMID_SET_THREEG_METHODID 11
- /*
- * Acer ACPI method GUIDs
- */
- #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
- #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
- #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
- #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
- #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
- /*
- * Acer ACPI event GUIDs
- */
- #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
- MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
- MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
- MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
- enum acer_wmi_event_ids {
- WMID_HOTKEY_EVENT = 0x1,
- WMID_ACCEL_EVENT = 0x5,
- };
- static const struct key_entry acer_wmi_keymap[] __initconst = {
- {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
- {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
- {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
- {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
- {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
- {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
- {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
- {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
- {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
- {KE_IGNORE, 0x41, {KEY_MUTE} },
- {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
- {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
- {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
- {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
- {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
- {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
- {KE_IGNORE, 0x45, {KEY_STOP} },
- {KE_IGNORE, 0x50, {KEY_STOP} },
- {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
- {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
- {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
- {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
- {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
- {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
- {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
- {KE_IGNORE, 0x81, {KEY_SLEEP} },
- {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
- {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
- {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
- {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
- {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
- {KE_KEY, 0x86, {KEY_WLAN} },
- {KE_KEY, 0x87, {KEY_POWER} },
- {KE_END, 0}
- };
- static struct input_dev *acer_wmi_input_dev;
- static struct input_dev *acer_wmi_accel_dev;
- struct event_return_value {
- u8 function;
- u8 key_num;
- u16 device_state;
- u32 reserved;
- } __attribute__((packed));
- /*
- * GUID3 Get Device Status device flags
- */
- #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
- #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
- #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
- #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
- #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
- #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
- /* Hotkey Customized Setting and Acer Application Status.
- * Set Device Default Value and Report Acer Application Status.
- * When Acer Application starts, it will run this method to inform
- * BIOS/EC that Acer Application is on.
- * App Status
- * Bit[0]: Launch Manager Status
- * Bit[1]: ePM Status
- * Bit[2]: Device Control Status
- * Bit[3]: Acer Power Button Utility Status
- * Bit[4]: RF Button Status
- * Bit[5]: ODD PM Status
- * Bit[6]: Device Default Value Control
- * Bit[7]: Hall Sensor Application Status
- */
- struct func_input_params {
- u8 function_num; /* Function Number */
- u16 commun_devices; /* Communication type devices default status */
- u16 devices; /* Other type devices default status */
- u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
- u8 app_mask; /* Bit mask to app_status */
- u8 reserved;
- } __attribute__((packed));
- struct func_return_value {
- u8 error_code; /* Error Code */
- u8 ec_return_value; /* EC Return Value */
- u16 reserved;
- } __attribute__((packed));
- struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
- u8 function_num; /* Function Number */
- u8 hotkey_number; /* Hotkey Number */
- u16 devices; /* Set Device */
- u8 volume_value; /* Volume Value */
- } __attribute__((packed));
- struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
- u8 function_num; /* Function Number */
- u8 hotkey_number; /* Hotkey Number */
- u16 devices; /* Get Device */
- } __attribute__((packed));
- struct wmid3_gds_return_value { /* Get Device Status return value*/
- u8 error_code; /* Error Code */
- u8 ec_return_value; /* EC Return Value */
- u16 devices; /* Current Device Status */
- u32 reserved;
- } __attribute__((packed));
- struct hotkey_function_type_aa {
- u8 type;
- u8 length;
- u16 handle;
- u16 commun_func_bitmap;
- u16 application_func_bitmap;
- u16 media_func_bitmap;
- u16 display_func_bitmap;
- u16 others_func_bitmap;
- u8 commun_fn_key_number;
- } __attribute__((packed));
- /*
- * Interface capability flags
- */
- #define ACER_CAP_MAILLED (1<<0)
- #define ACER_CAP_WIRELESS (1<<1)
- #define ACER_CAP_BLUETOOTH (1<<2)
- #define ACER_CAP_BRIGHTNESS (1<<3)
- #define ACER_CAP_THREEG (1<<4)
- #define ACER_CAP_ACCEL (1<<5)
- #define ACER_CAP_RFBTN (1<<6)
- #define ACER_CAP_ANY (0xFFFFFFFF)
- /*
- * Interface type flags
- */
- enum interface_flags {
- ACER_AMW0,
- ACER_AMW0_V2,
- ACER_WMID,
- ACER_WMID_v2,
- };
- #define ACER_DEFAULT_WIRELESS 0
- #define ACER_DEFAULT_BLUETOOTH 0
- #define ACER_DEFAULT_MAILLED 0
- #define ACER_DEFAULT_THREEG 0
- static int max_brightness = 0xF;
- static int mailled = -1;
- static int brightness = -1;
- static int threeg = -1;
- static int force_series;
- static bool ec_raw_mode;
- static bool has_type_aa;
- static u16 commun_func_bitmap;
- static u8 commun_fn_key_number;
- module_param(mailled, int, 0444);
- module_param(brightness, int, 0444);
- module_param(threeg, int, 0444);
- module_param(force_series, int, 0444);
- module_param(ec_raw_mode, bool, 0444);
- MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
- MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
- MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
- MODULE_PARM_DESC(force_series, "Force a different laptop series");
- MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
- struct acer_data {
- int mailled;
- int threeg;
- int brightness;
- };
- struct acer_debug {
- struct dentry *root;
- u32 wmid_devices;
- };
- static struct rfkill *wireless_rfkill;
- static struct rfkill *bluetooth_rfkill;
- static struct rfkill *threeg_rfkill;
- static bool rfkill_inited;
- /* Each low-level interface must define at least some of the following */
- struct wmi_interface {
- /* The WMI device type */
- u32 type;
- /* The capabilities this interface provides */
- u32 capability;
- /* Private data for the current interface */
- struct acer_data data;
- /* debugfs entries associated with this interface */
- struct acer_debug debug;
- };
- /* The static interface pointer, points to the currently detected interface */
- static struct wmi_interface *interface;
- /*
- * Embedded Controller quirks
- * Some laptops require us to directly access the EC to either enable or query
- * features that are not available through WMI.
- */
- struct quirk_entry {
- u8 wireless;
- u8 mailled;
- s8 brightness;
- u8 bluetooth;
- };
- static struct quirk_entry *quirks;
- static void __init set_quirks(void)
- {
- if (!interface)
- return;
- if (quirks->mailled)
- interface->capability |= ACER_CAP_MAILLED;
- if (quirks->brightness)
- interface->capability |= ACER_CAP_BRIGHTNESS;
- }
- static int __init dmi_matched(const struct dmi_system_id *dmi)
- {
- quirks = dmi->driver_data;
- return 1;
- }
- static struct quirk_entry quirk_unknown = {
- };
- static struct quirk_entry quirk_acer_aspire_1520 = {
- .brightness = -1,
- };
- static struct quirk_entry quirk_acer_travelmate_2490 = {
- .mailled = 1,
- };
- /* This AMW0 laptop has no bluetooth */
- static struct quirk_entry quirk_medion_md_98300 = {
- .wireless = 1,
- };
- static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
- .wireless = 2,
- };
- static struct quirk_entry quirk_lenovo_ideapad_s205 = {
- .wireless = 3,
- };
- /* The Aspire One has a dummy ACPI-WMI interface - disable it */
- static const struct dmi_system_id acer_blacklist[] __initconst = {
- {
- .ident = "Acer Aspire One (SSD)",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
- },
- },
- {
- .ident = "Acer Aspire One (HDD)",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
- },
- },
- {}
- };
- static const struct dmi_system_id amw0_whitelist[] __initconst = {
- {
- .ident = "Acer",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- },
- },
- {
- .ident = "Gateway",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
- },
- },
- {
- .ident = "Packard Bell",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
- },
- },
- {}
- };
- /*
- * This quirk table is only for Acer/Gateway/Packard Bell family
- * that those machines are supported by acer-wmi driver.
- */
- static const struct dmi_system_id acer_quirks[] __initconst = {
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 1360",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
- },
- .driver_data = &quirk_acer_aspire_1520,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 1520",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
- },
- .driver_data = &quirk_acer_aspire_1520,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 3100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 3610",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 5100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 5610",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 5630",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 5650",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 5680",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer Aspire 9110",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer TravelMate 2490",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {
- .callback = dmi_matched,
- .ident = "Acer TravelMate 4200",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
- },
- .driver_data = &quirk_acer_travelmate_2490,
- },
- {}
- };
- /*
- * This quirk list is for those non-acer machines that have AMW0_GUID1
- * but supported by acer-wmi in past days. Keeping this quirk list here
- * is only for backward compatible. Please do not add new machine to
- * here anymore. Those non-acer machines should be supported by
- * appropriate wmi drivers.
- */
- static const struct dmi_system_id non_acer_quirks[] __initconst = {
- {
- .callback = dmi_matched,
- .ident = "Fujitsu Siemens Amilo Li 1718",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
- DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
- },
- .driver_data = &quirk_fujitsu_amilo_li_1718,
- },
- {
- .callback = dmi_matched,
- .ident = "Medion MD 98300",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
- DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
- },
- .driver_data = &quirk_medion_md_98300,
- },
- {
- .callback = dmi_matched,
- .ident = "Lenovo Ideapad S205",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
- },
- .driver_data = &quirk_lenovo_ideapad_s205,
- },
- {
- .callback = dmi_matched,
- .ident = "Lenovo Ideapad S205 (Brazos)",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
- },
- .driver_data = &quirk_lenovo_ideapad_s205,
- },
- {
- .callback = dmi_matched,
- .ident = "Lenovo 3000 N200",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
- },
- .driver_data = &quirk_fujitsu_amilo_li_1718,
- },
- {
- .callback = dmi_matched,
- .ident = "Lenovo Ideapad S205-10382JG",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
- },
- .driver_data = &quirk_lenovo_ideapad_s205,
- },
- {
- .callback = dmi_matched,
- .ident = "Lenovo Ideapad S205-1038DPG",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
- },
- .driver_data = &quirk_lenovo_ideapad_s205,
- },
- {}
- };
- static int __init
- video_set_backlight_video_vendor(const struct dmi_system_id *d)
- {
- interface->capability &= ~ACER_CAP_BRIGHTNESS;
- pr_info("Brightness must be controlled by generic video driver\n");
- return 0;
- }
- static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
- {
- .callback = video_set_backlight_video_vendor,
- .ident = "Acer TravelMate 4750",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
- },
- },
- {
- .callback = video_set_backlight_video_vendor,
- .ident = "Acer Extensa 5235",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
- },
- },
- {
- .callback = video_set_backlight_video_vendor,
- .ident = "Acer TravelMate 5760",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
- },
- },
- {
- .callback = video_set_backlight_video_vendor,
- .ident = "Acer Aspire 5750",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
- },
- },
- {
- .callback = video_set_backlight_video_vendor,
- .ident = "Acer Aspire 5741",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
- },
- },
- {
- /*
- * Note no video_set_backlight_video_vendor, we must use the
- * acer interface, as there is no native backlight interface.
- */
- .ident = "Acer KAV80",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
- },
- },
- {}
- };
- /* Find which quirks are needed for a particular vendor/ model pair */
- static void __init find_quirks(void)
- {
- if (!force_series) {
- dmi_check_system(acer_quirks);
- dmi_check_system(non_acer_quirks);
- } else if (force_series == 2490) {
- quirks = &quirk_acer_travelmate_2490;
- }
- if (quirks == NULL)
- quirks = &quirk_unknown;
- set_quirks();
- }
- /*
- * General interface convenience methods
- */
- static bool has_cap(u32 cap)
- {
- return interface->capability & cap;
- }
- /*
- * AMW0 (V1) interface
- */
- struct wmab_args {
- u32 eax;
- u32 ebx;
- u32 ecx;
- u32 edx;
- };
- struct wmab_ret {
- u32 eax;
- u32 ebx;
- u32 ecx;
- u32 edx;
- u32 eex;
- };
- static acpi_status wmab_execute(struct wmab_args *regbuf,
- struct acpi_buffer *result)
- {
- struct acpi_buffer input;
- acpi_status status;
- input.length = sizeof(struct wmab_args);
- input.pointer = (u8 *)regbuf;
- status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
- return status;
- }
- static acpi_status AMW0_get_u32(u32 *value, u32 cap)
- {
- int err;
- u8 result;
- switch (cap) {
- case ACER_CAP_MAILLED:
- switch (quirks->mailled) {
- default:
- err = ec_read(0xA, &result);
- if (err)
- return AE_ERROR;
- *value = (result >> 7) & 0x1;
- return AE_OK;
- }
- break;
- case ACER_CAP_WIRELESS:
- switch (quirks->wireless) {
- case 1:
- err = ec_read(0x7B, &result);
- if (err)
- return AE_ERROR;
- *value = result & 0x1;
- return AE_OK;
- case 2:
- err = ec_read(0x71, &result);
- if (err)
- return AE_ERROR;
- *value = result & 0x1;
- return AE_OK;
- case 3:
- err = ec_read(0x78, &result);
- if (err)
- return AE_ERROR;
- *value = result & 0x1;
- return AE_OK;
- default:
- err = ec_read(0xA, &result);
- if (err)
- return AE_ERROR;
- *value = (result >> 2) & 0x1;
- return AE_OK;
- }
- break;
- case ACER_CAP_BLUETOOTH:
- switch (quirks->bluetooth) {
- default:
- err = ec_read(0xA, &result);
- if (err)
- return AE_ERROR;
- *value = (result >> 4) & 0x1;
- return AE_OK;
- }
- break;
- case ACER_CAP_BRIGHTNESS:
- switch (quirks->brightness) {
- default:
- err = ec_read(0x83, &result);
- if (err)
- return AE_ERROR;
- *value = result;
- return AE_OK;
- }
- break;
- default:
- return AE_ERROR;
- }
- return AE_OK;
- }
- static acpi_status AMW0_set_u32(u32 value, u32 cap)
- {
- struct wmab_args args;
- args.eax = ACER_AMW0_WRITE;
- args.ebx = value ? (1<<8) : 0;
- args.ecx = args.edx = 0;
- switch (cap) {
- case ACER_CAP_MAILLED:
- if (value > 1)
- return AE_BAD_PARAMETER;
- args.ebx |= ACER_AMW0_MAILLED_MASK;
- break;
- case ACER_CAP_WIRELESS:
- if (value > 1)
- return AE_BAD_PARAMETER;
- args.ebx |= ACER_AMW0_WIRELESS_MASK;
- break;
- case ACER_CAP_BLUETOOTH:
- if (value > 1)
- return AE_BAD_PARAMETER;
- args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
- break;
- case ACER_CAP_BRIGHTNESS:
- if (value > max_brightness)
- return AE_BAD_PARAMETER;
- switch (quirks->brightness) {
- default:
- return ec_write(0x83, value);
- break;
- }
- default:
- return AE_ERROR;
- }
- /* Actually do the set */
- return wmab_execute(&args, NULL);
- }
- static acpi_status __init AMW0_find_mailled(void)
- {
- struct wmab_args args;
- struct wmab_ret ret;
- acpi_status status = AE_OK;
- struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- args.eax = 0x86;
- args.ebx = args.ecx = args.edx = 0;
- status = wmab_execute(&args, &out);
- if (ACPI_FAILURE(status))
- return status;
- obj = (union acpi_object *) out.pointer;
- if (obj && obj->type == ACPI_TYPE_BUFFER &&
- obj->buffer.length == sizeof(struct wmab_ret)) {
- ret = *((struct wmab_ret *) obj->buffer.pointer);
- } else {
- kfree(out.pointer);
- return AE_ERROR;
- }
- if (ret.eex & 0x1)
- interface->capability |= ACER_CAP_MAILLED;
- kfree(out.pointer);
- return AE_OK;
- }
- static const struct acpi_device_id norfkill_ids[] __initconst = {
- { "VPC2004", 0},
- { "IBM0068", 0},
- { "LEN0068", 0},
- { "SNY5001", 0}, /* sony-laptop in charge */
- { "HPQ6601", 0},
- { "", 0},
- };
- static int __init AMW0_set_cap_acpi_check_device(void)
- {
- const struct acpi_device_id *id;
- for (id = norfkill_ids; id->id[0]; id++)
- if (acpi_dev_found(id->id))
- return true;
- return false;
- }
- static acpi_status __init AMW0_set_capabilities(void)
- {
- struct wmab_args args;
- struct wmab_ret ret;
- acpi_status status;
- struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- /*
- * On laptops with this strange GUID (non Acer), normal probing doesn't
- * work.
- */
- if (wmi_has_guid(AMW0_GUID2)) {
- if ((quirks != &quirk_unknown) ||
- !AMW0_set_cap_acpi_check_device())
- interface->capability |= ACER_CAP_WIRELESS;
- return AE_OK;
- }
- args.eax = ACER_AMW0_WRITE;
- args.ecx = args.edx = 0;
- args.ebx = 0xa2 << 8;
- args.ebx |= ACER_AMW0_WIRELESS_MASK;
- status = wmab_execute(&args, &out);
- if (ACPI_FAILURE(status))
- return status;
- obj = out.pointer;
- if (obj && obj->type == ACPI_TYPE_BUFFER &&
- obj->buffer.length == sizeof(struct wmab_ret)) {
- ret = *((struct wmab_ret *) obj->buffer.pointer);
- } else {
- status = AE_ERROR;
- goto out;
- }
- if (ret.eax & 0x1)
- interface->capability |= ACER_CAP_WIRELESS;
- args.ebx = 2 << 8;
- args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
- /*
- * It's ok to use existing buffer for next wmab_execute call.
- * But we need to kfree(out.pointer) if next wmab_execute fail.
- */
- status = wmab_execute(&args, &out);
- if (ACPI_FAILURE(status))
- goto out;
- obj = (union acpi_object *) out.pointer;
- if (obj && obj->type == ACPI_TYPE_BUFFER
- && obj->buffer.length == sizeof(struct wmab_ret)) {
- ret = *((struct wmab_ret *) obj->buffer.pointer);
- } else {
- status = AE_ERROR;
- goto out;
- }
- if (ret.eax & 0x1)
- interface->capability |= ACER_CAP_BLUETOOTH;
- /*
- * This appears to be safe to enable, since all Wistron based laptops
- * appear to use the same EC register for brightness, even if they
- * differ for wireless, etc
- */
- if (quirks->brightness >= 0)
- interface->capability |= ACER_CAP_BRIGHTNESS;
- status = AE_OK;
- out:
- kfree(out.pointer);
- return status;
- }
- static struct wmi_interface AMW0_interface = {
- .type = ACER_AMW0,
- };
- static struct wmi_interface AMW0_V2_interface = {
- .type = ACER_AMW0_V2,
- };
- /*
- * New interface (The WMID interface)
- */
- static acpi_status
- WMI_execute_u32(u32 method_id, u32 in, u32 *out)
- {
- struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
- struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- u32 tmp = 0;
- acpi_status status;
- status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
- if (ACPI_FAILURE(status))
- return status;
- obj = (union acpi_object *) result.pointer;
- if (obj) {
- if (obj->type == ACPI_TYPE_BUFFER &&
- (obj->buffer.length == sizeof(u32) ||
- obj->buffer.length == sizeof(u64))) {
- tmp = *((u32 *) obj->buffer.pointer);
- } else if (obj->type == ACPI_TYPE_INTEGER) {
- tmp = (u32) obj->integer.value;
- }
- }
- if (out)
- *out = tmp;
- kfree(result.pointer);
- return status;
- }
- static acpi_status WMID_get_u32(u32 *value, u32 cap)
- {
- acpi_status status;
- u8 tmp;
- u32 result, method_id = 0;
- switch (cap) {
- case ACER_CAP_WIRELESS:
- method_id = ACER_WMID_GET_WIRELESS_METHODID;
- break;
- case ACER_CAP_BLUETOOTH:
- method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
- break;
- case ACER_CAP_BRIGHTNESS:
- method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
- break;
- case ACER_CAP_THREEG:
- method_id = ACER_WMID_GET_THREEG_METHODID;
- break;
- case ACER_CAP_MAILLED:
- if (quirks->mailled == 1) {
- ec_read(0x9f, &tmp);
- *value = tmp & 0x1;
- return 0;
- }
- /* fall through */
- default:
- return AE_ERROR;
- }
- status = WMI_execute_u32(method_id, 0, &result);
- if (ACPI_SUCCESS(status))
- *value = (u8)result;
- return status;
- }
- static acpi_status WMID_set_u32(u32 value, u32 cap)
- {
- u32 method_id = 0;
- char param;
- switch (cap) {
- case ACER_CAP_BRIGHTNESS:
- if (value > max_brightness)
- return AE_BAD_PARAMETER;
- method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
- break;
- case ACER_CAP_WIRELESS:
- if (value > 1)
- return AE_BAD_PARAMETER;
- method_id = ACER_WMID_SET_WIRELESS_METHODID;
- break;
- case ACER_CAP_BLUETOOTH:
- if (value > 1)
- return AE_BAD_PARAMETER;
- method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
- break;
- case ACER_CAP_THREEG:
- if (value > 1)
- return AE_BAD_PARAMETER;
- method_id = ACER_WMID_SET_THREEG_METHODID;
- break;
- case ACER_CAP_MAILLED:
- if (value > 1)
- return AE_BAD_PARAMETER;
- if (quirks->mailled == 1) {
- param = value ? 0x92 : 0x93;
- i8042_lock_chip();
- i8042_command(¶m, 0x1059);
- i8042_unlock_chip();
- return 0;
- }
- break;
- default:
- return AE_ERROR;
- }
- return WMI_execute_u32(method_id, (u32)value, NULL);
- }
- static acpi_status wmid3_get_device_status(u32 *value, u16 device)
- {
- struct wmid3_gds_return_value return_value;
- acpi_status status;
- union acpi_object *obj;
- struct wmid3_gds_get_input_param params = {
- .function_num = 0x1,
- .hotkey_number = commun_fn_key_number,
- .devices = device,
- };
- struct acpi_buffer input = {
- sizeof(struct wmid3_gds_get_input_param),
- ¶ms
- };
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
- if (ACPI_FAILURE(status))
- return status;
- obj = output.pointer;
- if (!obj)
- return AE_ERROR;
- else if (obj->type != ACPI_TYPE_BUFFER) {
- kfree(obj);
- return AE_ERROR;
- }
- if (obj->buffer.length != 8) {
- pr_warn("Unknown buffer length %d\n", obj->buffer.length);
- kfree(obj);
- return AE_ERROR;
- }
- return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
- kfree(obj);
- if (return_value.error_code || return_value.ec_return_value)
- pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
- device,
- return_value.error_code,
- return_value.ec_return_value);
- else
- *value = !!(return_value.devices & device);
- return status;
- }
- static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
- {
- u16 device;
- switch (cap) {
- case ACER_CAP_WIRELESS:
- device = ACER_WMID3_GDS_WIRELESS;
- break;
- case ACER_CAP_BLUETOOTH:
- device = ACER_WMID3_GDS_BLUETOOTH;
- break;
- case ACER_CAP_THREEG:
- device = ACER_WMID3_GDS_THREEG;
- break;
- default:
- return AE_ERROR;
- }
- return wmid3_get_device_status(value, device);
- }
- static acpi_status wmid3_set_device_status(u32 value, u16 device)
- {
- struct wmid3_gds_return_value return_value;
- acpi_status status;
- union acpi_object *obj;
- u16 devices;
- struct wmid3_gds_get_input_param get_params = {
- .function_num = 0x1,
- .hotkey_number = commun_fn_key_number,
- .devices = commun_func_bitmap,
- };
- struct acpi_buffer get_input = {
- sizeof(struct wmid3_gds_get_input_param),
- &get_params
- };
- struct wmid3_gds_set_input_param set_params = {
- .function_num = 0x2,
- .hotkey_number = commun_fn_key_number,
- .devices = commun_func_bitmap,
- };
- struct acpi_buffer set_input = {
- sizeof(struct wmid3_gds_set_input_param),
- &set_params
- };
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
- status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
- if (ACPI_FAILURE(status))
- return status;
- obj = output.pointer;
- if (!obj)
- return AE_ERROR;
- else if (obj->type != ACPI_TYPE_BUFFER) {
- kfree(obj);
- return AE_ERROR;
- }
- if (obj->buffer.length != 8) {
- pr_warn("Unknown buffer length %d\n", obj->buffer.length);
- kfree(obj);
- return AE_ERROR;
- }
- return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
- kfree(obj);
- if (return_value.error_code || return_value.ec_return_value) {
- pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
- return_value.error_code,
- return_value.ec_return_value);
- return status;
- }
- devices = return_value.devices;
- set_params.devices = (value) ? (devices | device) : (devices & ~device);
- status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
- if (ACPI_FAILURE(status))
- return status;
- obj = output2.pointer;
- if (!obj)
- return AE_ERROR;
- else if (obj->type != ACPI_TYPE_BUFFER) {
- kfree(obj);
- return AE_ERROR;
- }
- if (obj->buffer.length != 4) {
- pr_warn("Unknown buffer length %d\n", obj->buffer.length);
- kfree(obj);
- return AE_ERROR;
- }
- return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
- kfree(obj);
- if (return_value.error_code || return_value.ec_return_value)
- pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
- return_value.error_code,
- return_value.ec_return_value);
- return status;
- }
- static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
- {
- u16 device;
- switch (cap) {
- case ACER_CAP_WIRELESS:
- device = ACER_WMID3_GDS_WIRELESS;
- break;
- case ACER_CAP_BLUETOOTH:
- device = ACER_WMID3_GDS_BLUETOOTH;
- break;
- case ACER_CAP_THREEG:
- device = ACER_WMID3_GDS_THREEG;
- break;
- default:
- return AE_ERROR;
- }
- return wmid3_set_device_status(value, device);
- }
- static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
- {
- struct hotkey_function_type_aa *type_aa;
- /* We are looking for OEM-specific Type AAh */
- if (header->type != 0xAA)
- return;
- has_type_aa = true;
- type_aa = (struct hotkey_function_type_aa *) header;
- pr_info("Function bitmap for Communication Button: 0x%x\n",
- type_aa->commun_func_bitmap);
- commun_func_bitmap = type_aa->commun_func_bitmap;
- if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
- interface->capability |= ACER_CAP_WIRELESS;
- if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
- interface->capability |= ACER_CAP_THREEG;
- if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
- interface->capability |= ACER_CAP_BLUETOOTH;
- if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) {
- interface->capability |= ACER_CAP_RFBTN;
- commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
- }
- commun_fn_key_number = type_aa->commun_fn_key_number;
- }
- static acpi_status __init WMID_set_capabilities(void)
- {
- struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *obj;
- acpi_status status;
- u32 devices;
- status = wmi_query_block(WMID_GUID2, 0, &out);
- if (ACPI_FAILURE(status))
- return status;
- obj = (union acpi_object *) out.pointer;
- if (obj) {
- if (obj->type == ACPI_TYPE_BUFFER &&
- (obj->buffer.length == sizeof(u32) ||
- obj->buffer.length == sizeof(u64))) {
- devices = *((u32 *) obj->buffer.pointer);
- } else if (obj->type == ACPI_TYPE_INTEGER) {
- devices = (u32) obj->integer.value;
- } else {
- kfree(out.pointer);
- return AE_ERROR;
- }
- } else {
- kfree(out.pointer);
- return AE_ERROR;
- }
- pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
- if (devices & 0x07)
- interface->capability |= ACER_CAP_WIRELESS;
- if (devices & 0x40)
- interface->capability |= ACER_CAP_THREEG;
- if (devices & 0x10)
- interface->capability |= ACER_CAP_BLUETOOTH;
- if (!(devices & 0x20))
- max_brightness = 0x9;
- kfree(out.pointer);
- return status;
- }
- static struct wmi_interface wmid_interface = {
- .type = ACER_WMID,
- };
- static struct wmi_interface wmid_v2_interface = {
- .type = ACER_WMID_v2,
- };
- /*
- * Generic Device (interface-independent)
- */
- static acpi_status get_u32(u32 *value, u32 cap)
- {
- acpi_status status = AE_ERROR;
- switch (interface->type) {
- case ACER_AMW0:
- status = AMW0_get_u32(value, cap);
- break;
- case ACER_AMW0_V2:
- if (cap == ACER_CAP_MAILLED) {
- status = AMW0_get_u32(value, cap);
- break;
- }
- /* fall through */
- case ACER_WMID:
- status = WMID_get_u32(value, cap);
- break;
- case ACER_WMID_v2:
- if (cap & (ACER_CAP_WIRELESS |
- ACER_CAP_BLUETOOTH |
- ACER_CAP_THREEG))
- status = wmid_v2_get_u32(value, cap);
- else if (wmi_has_guid(WMID_GUID2))
- status = WMID_get_u32(value, cap);
- break;
- }
- return status;
- }
- static acpi_status set_u32(u32 value, u32 cap)
- {
- acpi_status status;
- if (interface->capability & cap) {
- switch (interface->type) {
- case ACER_AMW0:
- return AMW0_set_u32(value, cap);
- case ACER_AMW0_V2:
- if (cap == ACER_CAP_MAILLED)
- return AMW0_set_u32(value, cap);
- /*
- * On some models, some WMID methods don't toggle
- * properly. For those cases, we want to run the AMW0
- * method afterwards to be certain we've really toggled
- * the device state.
- */
- if (cap == ACER_CAP_WIRELESS ||
- cap == ACER_CAP_BLUETOOTH) {
- status = WMID_set_u32(value, cap);
- if (ACPI_FAILURE(status))
- return status;
- return AMW0_set_u32(value, cap);
- }
- /* fall through */
- case ACER_WMID:
- return WMID_set_u32(value, cap);
- case ACER_WMID_v2:
- if (cap & (ACER_CAP_WIRELESS |
- ACER_CAP_BLUETOOTH |
- ACER_CAP_THREEG))
- return wmid_v2_set_u32(value, cap);
- else if (wmi_has_guid(WMID_GUID2))
- return WMID_set_u32(value, cap);
- /* fall through */
- default:
- return AE_BAD_PARAMETER;
- }
- }
- return AE_BAD_PARAMETER;
- }
- static void __init acer_commandline_init(void)
- {
- /*
- * These will all fail silently if the value given is invalid, or the
- * capability isn't available on the given interface
- */
- if (mailled >= 0)
- set_u32(mailled, ACER_CAP_MAILLED);
- if (!has_type_aa && threeg >= 0)
- set_u32(threeg, ACER_CAP_THREEG);
- if (brightness >= 0)
- set_u32(brightness, ACER_CAP_BRIGHTNESS);
- }
- /*
- * LED device (Mail LED only, no other LEDs known yet)
- */
- static void mail_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
- {
- set_u32(value, ACER_CAP_MAILLED);
- }
- static struct led_classdev mail_led = {
- .name = "acer-wmi::mail",
- .brightness_set = mail_led_set,
- };
- static int acer_led_init(struct device *dev)
- {
- return led_classdev_register(dev, &mail_led);
- }
- static void acer_led_exit(void)
- {
- set_u32(LED_OFF, ACER_CAP_MAILLED);
- led_classdev_unregister(&mail_led);
- }
- /*
- * Backlight device
- */
- static struct backlight_device *acer_backlight_device;
- static int read_brightness(struct backlight_device *bd)
- {
- u32 value;
- get_u32(&value, ACER_CAP_BRIGHTNESS);
- return value;
- }
- static int update_bl_status(struct backlight_device *bd)
- {
- int intensity = bd->props.brightness;
- if (bd->props.power != FB_BLANK_UNBLANK)
- intensity = 0;
- if (bd->props.fb_blank != FB_BLANK_UNBLANK)
- intensity = 0;
- set_u32(intensity, ACER_CAP_BRIGHTNESS);
- return 0;
- }
- static const struct backlight_ops acer_bl_ops = {
- .get_brightness = read_brightness,
- .update_status = update_bl_status,
- };
- static int acer_backlight_init(struct device *dev)
- {
- struct backlight_properties props;
- struct backlight_device *bd;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_PLATFORM;
- props.max_brightness = max_brightness;
- bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
- &props);
- if (IS_ERR(bd)) {
- pr_err("Could not register Acer backlight device\n");
- acer_backlight_device = NULL;
- return PTR_ERR(bd);
- }
- acer_backlight_device = bd;
- bd->props.power = FB_BLANK_UNBLANK;
- bd->props.brightness = read_brightness(bd);
- backlight_update_status(bd);
- return 0;
- }
- static void acer_backlight_exit(void)
- {
- backlight_device_unregister(acer_backlight_device);
- }
- /*
- * Accelerometer device
- */
- static acpi_handle gsensor_handle;
- static int acer_gsensor_init(void)
- {
- acpi_status status;
- struct acpi_buffer output;
- union acpi_object out_obj;
- output.length = sizeof(out_obj);
- output.pointer = &out_obj;
- status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
- if (ACPI_FAILURE(status))
- return -1;
- return 0;
- }
- static int acer_gsensor_open(struct input_dev *input)
- {
- return acer_gsensor_init();
- }
- static int acer_gsensor_event(void)
- {
- acpi_status status;
- struct acpi_buffer output;
- union acpi_object out_obj[5];
- if (!has_cap(ACER_CAP_ACCEL))
- return -1;
- output.length = sizeof(out_obj);
- output.pointer = out_obj;
- status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
- if (ACPI_FAILURE(status))
- return -1;
- if (out_obj->package.count != 4)
- return -1;
- input_report_abs(acer_wmi_accel_dev, ABS_X,
- (s16)out_obj->package.elements[0].integer.value);
- input_report_abs(acer_wmi_accel_dev, ABS_Y,
- (s16)out_obj->package.elements[1].integer.value);
- input_report_abs(acer_wmi_accel_dev, ABS_Z,
- (s16)out_obj->package.elements[2].integer.value);
- input_sync(acer_wmi_accel_dev);
- return 0;
- }
- /*
- * Rfkill devices
- */
- static void acer_rfkill_update(struct work_struct *ignored);
- static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
- static void acer_rfkill_update(struct work_struct *ignored)
- {
- u32 state;
- acpi_status status;
- if (has_cap(ACER_CAP_WIRELESS)) {
- status = get_u32(&state, ACER_CAP_WIRELESS);
- if (ACPI_SUCCESS(status)) {
- if (quirks->wireless == 3)
- rfkill_set_hw_state(wireless_rfkill, !state);
- else
- rfkill_set_sw_state(wireless_rfkill, !state);
- }
- }
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- status = get_u32(&state, ACER_CAP_BLUETOOTH);
- if (ACPI_SUCCESS(status))
- rfkill_set_sw_state(bluetooth_rfkill, !state);
- }
- if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
- status = get_u32(&state, ACER_WMID3_GDS_THREEG);
- if (ACPI_SUCCESS(status))
- rfkill_set_sw_state(threeg_rfkill, !state);
- }
- schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
- }
- static int acer_rfkill_set(void *data, bool blocked)
- {
- acpi_status status;
- u32 cap = (unsigned long)data;
- if (rfkill_inited) {
- status = set_u32(!blocked, cap);
- if (ACPI_FAILURE(status))
- return -ENODEV;
- }
- return 0;
- }
- static const struct rfkill_ops acer_rfkill_ops = {
- .set_block = acer_rfkill_set,
- };
- static struct rfkill *acer_rfkill_register(struct device *dev,
- enum rfkill_type type,
- char *name, u32 cap)
- {
- int err;
- struct rfkill *rfkill_dev;
- u32 state;
- acpi_status status;
- rfkill_dev = rfkill_alloc(name, dev, type,
- &acer_rfkill_ops,
- (void *)(unsigned long)cap);
- if (!rfkill_dev)
- return ERR_PTR(-ENOMEM);
- status = get_u32(&state, cap);
- err = rfkill_register(rfkill_dev);
- if (err) {
- rfkill_destroy(rfkill_dev);
- return ERR_PTR(err);
- }
- if (ACPI_SUCCESS(status))
- rfkill_set_sw_state(rfkill_dev, !state);
- return rfkill_dev;
- }
- static int acer_rfkill_init(struct device *dev)
- {
- int err;
- if (has_cap(ACER_CAP_WIRELESS)) {
- wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
- "acer-wireless", ACER_CAP_WIRELESS);
- if (IS_ERR(wireless_rfkill)) {
- err = PTR_ERR(wireless_rfkill);
- goto error_wireless;
- }
- }
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- bluetooth_rfkill = acer_rfkill_register(dev,
- RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
- ACER_CAP_BLUETOOTH);
- if (IS_ERR(bluetooth_rfkill)) {
- err = PTR_ERR(bluetooth_rfkill);
- goto error_bluetooth;
- }
- }
- if (has_cap(ACER_CAP_THREEG)) {
- threeg_rfkill = acer_rfkill_register(dev,
- RFKILL_TYPE_WWAN, "acer-threeg",
- ACER_CAP_THREEG);
- if (IS_ERR(threeg_rfkill)) {
- err = PTR_ERR(threeg_rfkill);
- goto error_threeg;
- }
- }
- rfkill_inited = true;
- if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
- has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
- schedule_delayed_work(&acer_rfkill_work,
- round_jiffies_relative(HZ));
- return 0;
- error_threeg:
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- rfkill_unregister(bluetooth_rfkill);
- rfkill_destroy(bluetooth_rfkill);
- }
- error_bluetooth:
- if (has_cap(ACER_CAP_WIRELESS)) {
- rfkill_unregister(wireless_rfkill);
- rfkill_destroy(wireless_rfkill);
- }
- error_wireless:
- return err;
- }
- static void acer_rfkill_exit(void)
- {
- if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
- has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
- cancel_delayed_work_sync(&acer_rfkill_work);
- if (has_cap(ACER_CAP_WIRELESS)) {
- rfkill_unregister(wireless_rfkill);
- rfkill_destroy(wireless_rfkill);
- }
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- rfkill_unregister(bluetooth_rfkill);
- rfkill_destroy(bluetooth_rfkill);
- }
- if (has_cap(ACER_CAP_THREEG)) {
- rfkill_unregister(threeg_rfkill);
- rfkill_destroy(threeg_rfkill);
- }
- return;
- }
- static void acer_wmi_notify(u32 value, void *context)
- {
- struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- struct event_return_value return_value;
- acpi_status status;
- u16 device_state;
- const struct key_entry *key;
- u32 scancode;
- status = wmi_get_event_data(value, &response);
- if (status != AE_OK) {
- pr_warn("bad event status 0x%x\n", status);
- return;
- }
- obj = (union acpi_object *)response.pointer;
- if (!obj)
- return;
- if (obj->type != ACPI_TYPE_BUFFER) {
- pr_warn("Unknown response received %d\n", obj->type);
- kfree(obj);
- return;
- }
- if (obj->buffer.length != 8) {
- pr_warn("Unknown buffer length %d\n", obj->buffer.length);
- kfree(obj);
- return;
- }
- return_value = *((struct event_return_value *)obj->buffer.pointer);
- kfree(obj);
- switch (return_value.function) {
- case WMID_HOTKEY_EVENT:
- device_state = return_value.device_state;
- pr_debug("device state: 0x%x\n", device_state);
- key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
- return_value.key_num);
- if (!key) {
- pr_warn("Unknown key number - 0x%x\n",
- return_value.key_num);
- } else {
- scancode = return_value.key_num;
- switch (key->keycode) {
- case KEY_WLAN:
- case KEY_BLUETOOTH:
- if (has_cap(ACER_CAP_WIRELESS))
- rfkill_set_sw_state(wireless_rfkill,
- !(device_state & ACER_WMID3_GDS_WIRELESS));
- if (has_cap(ACER_CAP_THREEG))
- rfkill_set_sw_state(threeg_rfkill,
- !(device_state & ACER_WMID3_GDS_THREEG));
- if (has_cap(ACER_CAP_BLUETOOTH))
- rfkill_set_sw_state(bluetooth_rfkill,
- !(device_state & ACER_WMID3_GDS_BLUETOOTH));
- break;
- case KEY_TOUCHPAD_TOGGLE:
- scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
- KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
- }
- sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
- }
- break;
- case WMID_ACCEL_EVENT:
- acer_gsensor_event();
- break;
- default:
- pr_warn("Unknown function number - %d - %d\n",
- return_value.function, return_value.key_num);
- break;
- }
- }
- static acpi_status __init
- wmid3_set_function_mode(struct func_input_params *params,
- struct func_return_value *return_value)
- {
- acpi_status status;
- union acpi_object *obj;
- struct acpi_buffer input = { sizeof(struct func_input_params), params };
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
- if (ACPI_FAILURE(status))
- return status;
- obj = output.pointer;
- if (!obj)
- return AE_ERROR;
- else if (obj->type != ACPI_TYPE_BUFFER) {
- kfree(obj);
- return AE_ERROR;
- }
- if (obj->buffer.length != 4) {
- pr_warn("Unknown buffer length %d\n", obj->buffer.length);
- kfree(obj);
- return AE_ERROR;
- }
- *return_value = *((struct func_return_value *)obj->buffer.pointer);
- kfree(obj);
- return status;
- }
- static int __init acer_wmi_enable_ec_raw(void)
- {
- struct func_return_value return_value;
- acpi_status status;
- struct func_input_params params = {
- .function_num = 0x1,
- .commun_devices = 0xFFFF,
- .devices = 0xFFFF,
- .app_status = 0x00, /* Launch Manager Deactive */
- .app_mask = 0x01,
- };
- status = wmid3_set_function_mode(¶ms, &return_value);
- if (return_value.error_code || return_value.ec_return_value)
- pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
- return_value.error_code,
- return_value.ec_return_value);
- else
- pr_info("Enabled EC raw mode\n");
- return status;
- }
- static int __init acer_wmi_enable_lm(void)
- {
- struct func_return_value return_value;
- acpi_status status;
- struct func_input_params params = {
- .function_num = 0x1,
- .commun_devices = 0xFFFF,
- .devices = 0xFFFF,
- .app_status = 0x01, /* Launch Manager Active */
- .app_mask = 0x01,
- };
- status = wmid3_set_function_mode(¶ms, &return_value);
- if (return_value.error_code || return_value.ec_return_value)
- pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
- return_value.error_code,
- return_value.ec_return_value);
- return status;
- }
- static int __init acer_wmi_enable_rf_button(void)
- {
- struct func_return_value return_value;
- acpi_status status;
- struct func_input_params params = {
- .function_num = 0x1,
- .commun_devices = 0xFFFF,
- .devices = 0xFFFF,
- .app_status = 0x10, /* RF Button Active */
- .app_mask = 0x10,
- };
- status = wmid3_set_function_mode(¶ms, &return_value);
- if (return_value.error_code || return_value.ec_return_value)
- pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
- return_value.error_code,
- return_value.ec_return_value);
- return status;
- }
- static int __init acer_wmi_accel_setup(void)
- {
- struct acpi_device *adev;
- int err;
- adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
- if (!adev)
- return -ENODEV;
- gsensor_handle = acpi_device_handle(adev);
- acpi_dev_put(adev);
- interface->capability |= ACER_CAP_ACCEL;
- acer_wmi_accel_dev = input_allocate_device();
- if (!acer_wmi_accel_dev)
- return -ENOMEM;
- acer_wmi_accel_dev->open = acer_gsensor_open;
- acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
- acer_wmi_accel_dev->phys = "wmi/input1";
- acer_wmi_accel_dev->id.bustype = BUS_HOST;
- acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
- input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
- input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
- input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
- err = input_register_device(acer_wmi_accel_dev);
- if (err)
- goto err_free_dev;
- return 0;
- err_free_dev:
- input_free_device(acer_wmi_accel_dev);
- return err;
- }
- static void acer_wmi_accel_destroy(void)
- {
- input_unregister_device(acer_wmi_accel_dev);
- }
- static int __init acer_wmi_input_setup(void)
- {
- acpi_status status;
- int err;
- acer_wmi_input_dev = input_allocate_device();
- if (!acer_wmi_input_dev)
- return -ENOMEM;
- acer_wmi_input_dev->name = "Acer WMI hotkeys";
- acer_wmi_input_dev->phys = "wmi/input0";
- acer_wmi_input_dev->id.bustype = BUS_HOST;
- err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
- if (err)
- goto err_free_dev;
- status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
- acer_wmi_notify, NULL);
- if (ACPI_FAILURE(status)) {
- err = -EIO;
- goto err_free_dev;
- }
- err = input_register_device(acer_wmi_input_dev);
- if (err)
- goto err_uninstall_notifier;
- return 0;
- err_uninstall_notifier:
- wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
- err_free_dev:
- input_free_device(acer_wmi_input_dev);
- return err;
- }
- static void acer_wmi_input_destroy(void)
- {
- wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
- input_unregister_device(acer_wmi_input_dev);
- }
- /*
- * debugfs functions
- */
- static u32 get_wmid_devices(void)
- {
- struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *obj;
- acpi_status status;
- u32 devices = 0;
- status = wmi_query_block(WMID_GUID2, 0, &out);
- if (ACPI_FAILURE(status))
- return 0;
- obj = (union acpi_object *) out.pointer;
- if (obj) {
- if (obj->type == ACPI_TYPE_BUFFER &&
- (obj->buffer.length == sizeof(u32) ||
- obj->buffer.length == sizeof(u64))) {
- devices = *((u32 *) obj->buffer.pointer);
- } else if (obj->type == ACPI_TYPE_INTEGER) {
- devices = (u32) obj->integer.value;
- }
- }
- kfree(out.pointer);
- return devices;
- }
- /*
- * Platform device
- */
- static int acer_platform_probe(struct platform_device *device)
- {
- int err;
- if (has_cap(ACER_CAP_MAILLED)) {
- err = acer_led_init(&device->dev);
- if (err)
- goto error_mailled;
- }
- if (has_cap(ACER_CAP_BRIGHTNESS)) {
- err = acer_backlight_init(&device->dev);
- if (err)
- goto error_brightness;
- }
- err = acer_rfkill_init(&device->dev);
- if (err)
- goto error_rfkill;
- return err;
- error_rfkill:
- if (has_cap(ACER_CAP_BRIGHTNESS))
- acer_backlight_exit();
- error_brightness:
- if (has_cap(ACER_CAP_MAILLED))
- acer_led_exit();
- error_mailled:
- return err;
- }
- static int acer_platform_remove(struct platform_device *device)
- {
- if (has_cap(ACER_CAP_MAILLED))
- acer_led_exit();
- if (has_cap(ACER_CAP_BRIGHTNESS))
- acer_backlight_exit();
- acer_rfkill_exit();
- return 0;
- }
- #ifdef CONFIG_PM_SLEEP
- static int acer_suspend(struct device *dev)
- {
- u32 value;
- struct acer_data *data = &interface->data;
- if (!data)
- return -ENOMEM;
- if (has_cap(ACER_CAP_MAILLED)) {
- get_u32(&value, ACER_CAP_MAILLED);
- set_u32(LED_OFF, ACER_CAP_MAILLED);
- data->mailled = value;
- }
- if (has_cap(ACER_CAP_BRIGHTNESS)) {
- get_u32(&value, ACER_CAP_BRIGHTNESS);
- data->brightness = value;
- }
- return 0;
- }
- static int acer_resume(struct device *dev)
- {
- struct acer_data *data = &interface->data;
- if (!data)
- return -ENOMEM;
- if (has_cap(ACER_CAP_MAILLED))
- set_u32(data->mailled, ACER_CAP_MAILLED);
- if (has_cap(ACER_CAP_BRIGHTNESS))
- set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
- if (has_cap(ACER_CAP_ACCEL))
- acer_gsensor_init();
- return 0;
- }
- #else
- #define acer_suspend NULL
- #define acer_resume NULL
- #endif
- static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
- static void acer_platform_shutdown(struct platform_device *device)
- {
- struct acer_data *data = &interface->data;
- if (!data)
- return;
- if (has_cap(ACER_CAP_MAILLED))
- set_u32(LED_OFF, ACER_CAP_MAILLED);
- }
- static struct platform_driver acer_platform_driver = {
- .driver = {
- .name = "acer-wmi",
- .pm = &acer_pm,
- },
- .probe = acer_platform_probe,
- .remove = acer_platform_remove,
- .shutdown = acer_platform_shutdown,
- };
- static struct platform_device *acer_platform_device;
- static void remove_debugfs(void)
- {
- debugfs_remove_recursive(interface->debug.root);
- }
- static void __init create_debugfs(void)
- {
- interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
- debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
- &interface->debug.wmid_devices);
- }
- static int __init acer_wmi_init(void)
- {
- int err;
- pr_info("Acer Laptop ACPI-WMI Extras\n");
- if (dmi_check_system(acer_blacklist)) {
- pr_info("Blacklisted hardware detected - not loading\n");
- return -ENODEV;
- }
- find_quirks();
- /*
- * The AMW0_GUID1 wmi is not only found on Acer family but also other
- * machines like Lenovo, Fujitsu and Medion. In the past days,
- * acer-wmi driver handled those non-Acer machines by quirks list.
- * But actually acer-wmi driver was loaded on any machines that have
- * AMW0_GUID1. This behavior is strange because those machines should
- * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
- * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
- * should be in Acer/Gateway/Packard Bell white list, or it's already
- * in the past quirk list.
- */
- if (wmi_has_guid(AMW0_GUID1) &&
- !dmi_check_system(amw0_whitelist) &&
- quirks == &quirk_unknown) {
- pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
- return -ENODEV;
- }
- /*
- * Detect which ACPI-WMI interface we're using.
- */
- if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
- interface = &AMW0_V2_interface;
- if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
- interface = &wmid_interface;
- if (wmi_has_guid(WMID_GUID3))
- interface = &wmid_v2_interface;
- if (interface)
- dmi_walk(type_aa_dmi_decode, NULL);
- if (wmi_has_guid(WMID_GUID2) && interface) {
- if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
- pr_err("Unable to detect available WMID devices\n");
- return -ENODEV;
- }
- /* WMID always provides brightness methods */
- interface->capability |= ACER_CAP_BRIGHTNESS;
- } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
- pr_err("No WMID device detection method found\n");
- return -ENODEV;
- }
- if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
- interface = &AMW0_interface;
- if (ACPI_FAILURE(AMW0_set_capabilities())) {
- pr_err("Unable to detect available AMW0 devices\n");
- return -ENODEV;
- }
- }
- if (wmi_has_guid(AMW0_GUID1))
- AMW0_find_mailled();
- if (!interface) {
- pr_err("No or unsupported WMI interface, unable to load\n");
- return -ENODEV;
- }
- set_quirks();
- if (dmi_check_system(video_vendor_dmi_table))
- acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
- if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
- interface->capability &= ~ACER_CAP_BRIGHTNESS;
- if (wmi_has_guid(WMID_GUID3)) {
- if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
- pr_warn("Cannot enable RF Button Driver\n");
- if (ec_raw_mode) {
- if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
- pr_err("Cannot enable EC raw mode\n");
- return -ENODEV;
- }
- } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
- pr_err("Cannot enable Launch Manager mode\n");
- return -ENODEV;
- }
- } else if (ec_raw_mode) {
- pr_info("No WMID EC raw mode enable method\n");
- }
- if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
- err = acer_wmi_input_setup();
- if (err)
- return err;
- err = acer_wmi_accel_setup();
- if (err && err != -ENODEV)
- pr_warn("Cannot enable accelerometer\n");
- }
- err = platform_driver_register(&acer_platform_driver);
- if (err) {
- pr_err("Unable to register platform driver\n");
- goto error_platform_register;
- }
- acer_platform_device = platform_device_alloc("acer-wmi", -1);
- if (!acer_platform_device) {
- err = -ENOMEM;
- goto error_device_alloc;
- }
- err = platform_device_add(acer_platform_device);
- if (err)
- goto error_device_add;
- if (wmi_has_guid(WMID_GUID2)) {
- interface->debug.wmid_devices = get_wmid_devices();
- create_debugfs();
- }
- /* Override any initial settings with values from the commandline */
- acer_commandline_init();
- return 0;
- error_device_add:
- platform_device_put(acer_platform_device);
- error_device_alloc:
- platform_driver_unregister(&acer_platform_driver);
- error_platform_register:
- if (wmi_has_guid(ACERWMID_EVENT_GUID))
- acer_wmi_input_destroy();
- if (has_cap(ACER_CAP_ACCEL))
- acer_wmi_accel_destroy();
- return err;
- }
- static void __exit acer_wmi_exit(void)
- {
- if (wmi_has_guid(ACERWMID_EVENT_GUID))
- acer_wmi_input_destroy();
- if (has_cap(ACER_CAP_ACCEL))
- acer_wmi_accel_destroy();
- remove_debugfs();
- platform_device_unregister(acer_platform_device);
- platform_driver_unregister(&acer_platform_driver);
- pr_info("Acer Laptop WMI Extras unloaded\n");
- return;
- }
- module_init(acer_wmi_init);
- module_exit(acer_wmi_exit);