254 lines
6.6 KiB
C
254 lines
6.6 KiB
C
/*
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* Eee PC WMI hotkey driver
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*
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* Copyright(C) 2010 Intel Corporation.
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* Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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*
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* Portions based on wistron_btns.c:
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* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
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* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
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* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
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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/dmi.h>
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#include <linux/fb.h>
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#include <acpi/acpi_bus.h>
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#include "asus-wmi.h"
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#define EEEPC_WMI_FILE "eeepc-wmi"
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MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
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MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
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MODULE_LICENSE("GPL");
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#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
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#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
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MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
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static bool hotplug_wireless;
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module_param(hotplug_wireless, bool, 0444);
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MODULE_PARM_DESC(hotplug_wireless,
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"Enable hotplug for wireless device. "
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"If your laptop needs that, please report to "
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"acpi4asus-user@lists.sourceforge.net.");
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/* Values for T101MT "Home" key */
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#define HOME_PRESS 0xe4
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#define HOME_HOLD 0xea
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#define HOME_RELEASE 0xe5
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static const struct key_entry eeepc_wmi_keymap[] = {
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/* Sleep already handled via generic ACPI code */
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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, 0x5c, { KEY_F15 } }, /* Power Gear key */
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{ KE_KEY, 0x5d, { KEY_WLAN } },
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{ KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
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{ KE_KEY, 0x82, { KEY_CAMERA } },
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{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
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{ KE_KEY, 0x88, { KEY_WLAN } },
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{ KE_KEY, 0xbd, { KEY_CAMERA } },
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{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
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{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
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{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
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{ KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
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{ KE_KEY, 0xe8, { KEY_SCREENLOCK } },
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{ KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
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{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
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{ KE_KEY, 0xec, { KEY_CAMERA_UP } },
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{ KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
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{ KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
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{ KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
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{ KE_KEY, 0xf3, { KEY_MENU } },
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{ KE_KEY, 0xf5, { KEY_HOMEPAGE } },
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{ KE_KEY, 0xf6, { KEY_ESC } },
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{ KE_END, 0},
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};
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static struct quirk_entry quirk_asus_unknown = {
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};
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static struct quirk_entry quirk_asus_1000h = {
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.hotplug_wireless = true,
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};
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static struct quirk_entry quirk_asus_et2012_type1 = {
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.store_backlight_power = true,
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};
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static struct quirk_entry quirk_asus_et2012_type3 = {
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.scalar_panel_brightness = true,
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.store_backlight_power = true,
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};
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static struct quirk_entry *quirks;
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static void et2012_quirks(void)
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{
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const struct dmi_device *dev = NULL;
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char oemstring[30];
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while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
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if (sscanf(dev->name, "AEMS%24c", oemstring) == 1) {
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if (oemstring[18] == '1')
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quirks = &quirk_asus_et2012_type1;
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else if (oemstring[18] == '3')
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quirks = &quirk_asus_et2012_type3;
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break;
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}
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}
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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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char *model;
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quirks = dmi->driver_data;
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model = (char *)dmi->matches[1].substr;
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if (unlikely(strncmp(model, "ET2012", 6) == 0))
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et2012_quirks();
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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. 1000H",
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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, "1000H"),
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},
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.driver_data = &quirk_asus_1000h,
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},
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{
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.callback = dmi_matched,
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.ident = "ASUSTeK Computer INC. ET2012E/I",
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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, "ET2012"),
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},
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.driver_data = &quirk_asus_unknown,
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},
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{},
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};
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static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
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unsigned int *value, bool *autorelease)
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{
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switch (*code) {
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case HOME_PRESS:
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*value = 1;
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*autorelease = 0;
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break;
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case HOME_HOLD:
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*code = ASUS_WMI_KEY_IGNORE;
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break;
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case HOME_RELEASE:
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*code = HOME_PRESS;
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*value = 0;
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*autorelease = 0;
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break;
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}
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}
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static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level,
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void *context, void **retval)
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{
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pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
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*(bool *)context = true;
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return AE_CTRL_TERMINATE;
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}
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static int eeepc_wmi_check_atkd(void)
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{
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acpi_status status;
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bool found = false;
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status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device,
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&found, NULL);
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if (ACPI_FAILURE(status) || !found)
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return 0;
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return -1;
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}
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static int eeepc_wmi_probe(struct platform_device *pdev)
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{
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if (eeepc_wmi_check_atkd()) {
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pr_warn("WMI device present, but legacy ATKD device is also "
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"present and enabled\n");
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pr_warn("You probably booted with acpi_osi=\"Linux\" or "
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"acpi_osi=\"!Windows 2009\"\n");
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pr_warn("Can't load eeepc-wmi, use default acpi_osi "
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"(preferred) or eeepc-laptop\n");
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return -EBUSY;
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}
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return 0;
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}
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static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
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{
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quirks = &quirk_asus_unknown;
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quirks->hotplug_wireless = hotplug_wireless;
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dmi_check_system(asus_quirks);
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driver->quirks = quirks;
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driver->quirks->wapf = -1;
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driver->panel_power = FB_BLANK_UNBLANK;
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}
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static struct asus_wmi_driver asus_wmi_driver = {
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.name = EEEPC_WMI_FILE,
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.owner = THIS_MODULE,
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.event_guid = EEEPC_WMI_EVENT_GUID,
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.keymap = eeepc_wmi_keymap,
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.input_name = "Eee PC WMI hotkeys",
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.input_phys = EEEPC_WMI_FILE "/input0",
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.key_filter = eeepc_wmi_key_filter,
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.probe = eeepc_wmi_probe,
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.detect_quirks = eeepc_wmi_quirks,
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};
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static int __init eeepc_wmi_init(void)
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{
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return asus_wmi_register_driver(&asus_wmi_driver);
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}
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static void __exit eeepc_wmi_exit(void)
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{
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asus_wmi_unregister_driver(&asus_wmi_driver);
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}
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module_init(eeepc_wmi_init);
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module_exit(eeepc_wmi_exit);
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