Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c7681f46 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for_linus' of...

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  eeepc-wmi: new driver for WMI based hotkeys on Eee PC laptops
  asus-laptop: fix warning in asus_handle_init
parents b95c35e7 ee027e4a
Loading
Loading
Loading
Loading
+10 −0
Original line number Diff line number Diff line
@@ -385,6 +385,16 @@ config EEEPC_LAPTOP

	  If you have an Eee PC laptop, say Y or M here.

config EEEPC_WMI
	tristate "Eee PC WMI Hotkey Driver (EXPERIMENTAL)"
	depends on ACPI_WMI
	depends on INPUT
	depends on EXPERIMENTAL
	---help---
	  Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.

	  To compile this driver as a module, choose M here: the module will
	  be called eeepc-wmi.

config ACPI_WMI
	tristate "WMI"
+1 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@
#
obj-$(CONFIG_ASUS_LAPTOP)	+= asus-laptop.o
obj-$(CONFIG_EEEPC_LAPTOP)	+= eeepc-laptop.o
obj-$(CONFIG_EEEPC_WMI)		+= eeepc-wmi.o
obj-$(CONFIG_MSI_LAPTOP)	+= msi-laptop.o
obj-$(CONFIG_ACPI_CMPC)		+= classmate-laptop.o
obj-$(CONFIG_COMPAL_LAPTOP)	+= compal-laptop.o
+2 −2
Original line number Diff line number Diff line
@@ -139,7 +139,7 @@ MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "

/* Backlight */
static acpi_handle lcd_switch_handle;
static const char *lcd_switch_paths[] = {
static char *lcd_switch_paths[] = {
  "\\_SB.PCI0.SBRG.EC0._Q10",	/* All new models */
  "\\_SB.PCI0.ISA.EC0._Q10",	/* A1x */
  "\\_SB.PCI0.PX40.ECD0._Q10",	/* L3C */
@@ -153,7 +153,7 @@ static const char *lcd_switch_paths[] = {
#define METHOD_SWITCH_DISPLAY	"SDSP"

static acpi_handle display_get_handle;
static const char *display_get_paths[] = {
static char *display_get_paths[] = {
  /* A6B, A6K A6R A7D F3JM L4R M6R A3G M6A M6V VX-1 V6J V6V W3Z */
  "\\_SB.PCI0.P0P1.VGA.GETD",
  /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V S5A M5A z33A W1Jc W2V G1 */
+157 −0
Original line number Diff line number Diff line
/*
 * Eee PC WMI hotkey driver
 *
 * Copyright(C) 2010 Intel Corporation.
 *
 * Portions based on wistron_btns.c:
 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>

MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
MODULE_LICENSE("GPL");

#define EEEPC_WMI_EVENT_GUID	"ABBC0F72-8EA1-11D1-00A0-C90629100000"

MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);

#define NOTIFY_BRNUP_MIN	0x11
#define NOTIFY_BRNUP_MAX	0x1f
#define NOTIFY_BRNDOWN_MIN	0x20
#define NOTIFY_BRNDOWN_MAX	0x2e

static const struct key_entry eeepc_wmi_keymap[] = {
	/* Sleep already handled via generic ACPI code */
	{ KE_KEY, 0x5d, { KEY_WLAN } },
	{ KE_KEY, 0x32, { KEY_MUTE } },
	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
	{ KE_IGNORE, NOTIFY_BRNDOWN_MIN, { KEY_BRIGHTNESSDOWN } },
	{ KE_IGNORE, NOTIFY_BRNUP_MIN, { KEY_BRIGHTNESSUP } },
	{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
	{ KE_END, 0},
};

static struct input_dev *eeepc_wmi_input_dev;

static void eeepc_wmi_notify(u32 value, void *context)
{
	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
	union acpi_object *obj;
	acpi_status status;
	int code;

	status = wmi_get_event_data(value, &response);
	if (status != AE_OK) {
		pr_err("EEEPC WMI: bad event status 0x%x\n", status);
		return;
	}

	obj = (union acpi_object *)response.pointer;

	if (obj && obj->type == ACPI_TYPE_INTEGER) {
		code = obj->integer.value;

		if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
			code = NOTIFY_BRNUP_MIN;
		else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
			code = NOTIFY_BRNDOWN_MIN;

		if (!sparse_keymap_report_event(eeepc_wmi_input_dev,
						code, 1, true))
			pr_info("EEEPC WMI: Unknown key %x pressed\n", code);
	}

	kfree(obj);
}

static int eeepc_wmi_input_setup(void)
{
	int err;

	eeepc_wmi_input_dev = input_allocate_device();
	if (!eeepc_wmi_input_dev)
		return -ENOMEM;

	eeepc_wmi_input_dev->name = "Eee PC WMI hotkeys";
	eeepc_wmi_input_dev->phys = "wmi/input0";
	eeepc_wmi_input_dev->id.bustype = BUS_HOST;

	err = sparse_keymap_setup(eeepc_wmi_input_dev, eeepc_wmi_keymap, NULL);
	if (err)
		goto err_free_dev;

	err = input_register_device(eeepc_wmi_input_dev);
	if (err)
		goto err_free_keymap;

	return 0;

err_free_keymap:
	sparse_keymap_free(eeepc_wmi_input_dev);
err_free_dev:
	input_free_device(eeepc_wmi_input_dev);
	return err;
}

static int __init eeepc_wmi_init(void)
{
	int err;
	acpi_status status;

	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID)) {
		pr_warning("EEEPC WMI: No known WMI GUID found\n");
		return -ENODEV;
	}

	err = eeepc_wmi_input_setup();
	if (err)
		return err;

	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
					eeepc_wmi_notify, NULL);
	if (ACPI_FAILURE(status)) {
		sparse_keymap_free(eeepc_wmi_input_dev);
		input_unregister_device(eeepc_wmi_input_dev);
		pr_err("EEEPC WMI: Unable to register notify handler - %d\n",
			status);
		return -ENODEV;
	}

	return 0;
}

static void __exit eeepc_wmi_exit(void)
{
	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
	sparse_keymap_free(eeepc_wmi_input_dev);
	input_unregister_device(eeepc_wmi_input_dev);
}

module_init(eeepc_wmi_init);
module_exit(eeepc_wmi_exit);