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a2a96f0c72
For machines with AMD graphic chips, it will send out WMI event and ACPI interrupt at the same time while hitting the hotkey. BIOS will notify the system the next display output mode throught WMI event code, so that windows' application can show an OSD to tell the user which mode will be taken effect. User can hit the display toggle key many times within 2 seconds to choose the mode they want. After 2 seconds, WMI dirver should send a WMIMethod(SDSP) command to tell the BIOS which mode the user chose. And then BIOS will raise another ACPI interrupt to tell the system to really switch the display mode. In Linux desktop, we don't have this kind of OSD to let users to choose the mode they want, so we don't need to call WMIMethod(SDSP) to have another ACPI interrupt. To simplify the problem, we just have to ignore the WMI event, and let the first ACPI interrupt to send out the key event. For the need, here comes another quirk to add machines with this kind of behavior. When the WMI driver receives the display toggle WMI event, and found the machin is in the list, it will do nothing and let ACPI video driver to report the key event. Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
258 lines
7.3 KiB
C
258 lines
7.3 KiB
C
/*
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* Asus Notebooks WMI hotkey driver
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*
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* Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/input/sparse-keymap.h>
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#include <linux/fb.h>
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#include <linux/dmi.h>
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#include "asus-wmi.h"
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#define ASUS_NB_WMI_FILE "asus-nb-wmi"
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MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
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MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
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MODULE_LICENSE("GPL");
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#define ASUS_NB_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
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MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
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/*
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* WAPF defines the behavior of the Fn+Fx wlan key
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* The significance of values is yet to be found, but
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* most of the time:
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* Bit | Bluetooth | WLAN
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* 0 | Hardware | Hardware
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* 1 | Hardware | Software
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* 4 | Software | Software
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*/
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static int wapf = -1;
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module_param(wapf, uint, 0444);
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MODULE_PARM_DESC(wapf, "WAPF value");
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static struct quirk_entry *quirks;
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static struct quirk_entry quirk_asus_unknown = {
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.wapf = 0,
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};
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/*
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* For those machines that need software to control bt/wifi status
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* and can't adjust brightness through ACPI interface
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* and have duplicate events(ACPI and WMI) for display toggle
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*/
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static struct quirk_entry quirk_asus_x55u = {
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.wapf = 4,
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.wmi_backlight_power = true,
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.no_display_toggle = true,
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};
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static struct quirk_entry quirk_asus_x401u = {
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.wapf = 4,
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};
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static int dmi_matched(const struct dmi_system_id *dmi)
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{
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quirks = dmi->driver_data;
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return 1;
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}
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static struct dmi_system_id asus_quirks[] = {
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X401U",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
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},
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.driver_data = &quirk_asus_x55u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X401A",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X401A1",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X501U",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
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},
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.driver_data = &quirk_asus_x55u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X501A",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X501A1",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X55A",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X55C",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X55U",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
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},
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.driver_data = &quirk_asus_x55u,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK COMPUTER INC. X55VD",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
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},
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.driver_data = &quirk_asus_x401u,
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},
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{},
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};
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static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
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{
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quirks = &quirk_asus_unknown;
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dmi_check_system(asus_quirks);
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driver->quirks = quirks;
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driver->panel_power = FB_BLANK_UNBLANK;
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/* overwrite the wapf setting if the wapf paramater is specified */
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if (wapf != -1)
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quirks->wapf = wapf;
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else
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wapf = quirks->wapf;
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}
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static const struct key_entry asus_nb_wmi_keymap[] = {
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{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
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{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
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{ KE_KEY, 0x32, { KEY_MUTE } },
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{ KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
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{ KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
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{ KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
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{ KE_KEY, 0x41, { KEY_NEXTSONG } },
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{ KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
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{ KE_KEY, 0x45, { KEY_PLAYPAUSE } },
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{ KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
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{ KE_KEY, 0x50, { KEY_EMAIL } },
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{ KE_KEY, 0x51, { KEY_WWW } },
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{ KE_KEY, 0x55, { KEY_CALC } },
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{ KE_IGNORE, 0x57, }, /* Battery mode */
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{ KE_IGNORE, 0x58, }, /* AC mode */
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{ KE_KEY, 0x5C, { KEY_F15 } }, /* Power Gear key */
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{ KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
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{ KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
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{ KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
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{ KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
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{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* LCD Only */
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{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* CRT Only */
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{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* LCD + CRT */
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{ KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
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{ KE_IGNORE, 0x6E, }, /* Low Battery notification */
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{ KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
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{ KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
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{ KE_KEY, 0x82, { KEY_CAMERA } },
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{ KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
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{ KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
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{ KE_KEY, 0x95, { KEY_MEDIA } },
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{ KE_KEY, 0x99, { KEY_PHONE } },
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{ KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
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{ KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
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{ KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
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{ KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
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{ KE_KEY, 0xB5, { KEY_CALC } },
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{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
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{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
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{ KE_END, 0},
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};
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static struct asus_wmi_driver asus_nb_wmi_driver = {
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.name = ASUS_NB_WMI_FILE,
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.owner = THIS_MODULE,
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.event_guid = ASUS_NB_WMI_EVENT_GUID,
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.keymap = asus_nb_wmi_keymap,
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.input_name = "Asus WMI hotkeys",
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.input_phys = ASUS_NB_WMI_FILE "/input0",
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.detect_quirks = asus_nb_wmi_quirks,
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};
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static int __init asus_nb_wmi_init(void)
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{
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return asus_wmi_register_driver(&asus_nb_wmi_driver);
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}
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static void __exit asus_nb_wmi_exit(void)
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{
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asus_wmi_unregister_driver(&asus_nb_wmi_driver);
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}
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module_init(asus_nb_wmi_init);
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module_exit(asus_nb_wmi_exit);
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