[linux-2.6-block.git] / drivers / platform / x86 / hp-wmi.c

/*
 * HP WMI hotkeys
 *
 * Copyright (C) 2008 Red Hat <mjg@redhat.com>
 *
 * 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 <acpi/acpi_drivers.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/rfkill.h>
#include <linux/string.h>

MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
MODULE_LICENSE("GPL");

MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");

#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"

#define HPWMI_DISPLAY_QUERY 0x1
#define HPWMI_HDDTEMP_QUERY 0x2
#define HPWMI_ALS_QUERY 0x3
#define HPWMI_DOCK_QUERY 0x4
#define HPWMI_WIRELESS_QUERY 0x5
#define HPWMI_HOTKEY_QUERY 0xc

static int __init hp_wmi_bios_setup(struct platform_device *device);
static int __exit hp_wmi_bios_remove(struct platform_device *device);

struct bios_args {
	u32 signature;
	u32 command;
	u32 commandtype;
	u32 datasize;
	u32 data;
};

struct bios_return {
	u32 sigpass;
	u32 return_code;
	u32 value;
};

struct key_entry {
	char type;		/* See KE_* below */
	u16 code;
	u16 keycode;
};

enum { KE_KEY, KE_SW, KE_END };

static struct key_entry hp_wmi_keymap[] = {
	{KE_SW, 0x01, SW_DOCK},
	{KE_KEY, 0x02, KEY_BRIGHTNESSUP},
	{KE_KEY, 0x03, KEY_BRIGHTNESSDOWN},
	{KE_KEY, 0x20e6, KEY_PROG1},
	{KE_KEY, 0x2142, KEY_MEDIA},
	{KE_KEY, 0x213b, KEY_INFO},
	{KE_KEY, 0x231b, KEY_HELP},
	{KE_END, 0}
};

static struct input_dev *hp_wmi_input_dev;
static struct platform_device *hp_wmi_platform_dev;

static struct rfkill *wifi_rfkill;
static struct rfkill *bluetooth_rfkill;
static struct rfkill *wwan_rfkill;

static struct platform_driver hp_wmi_driver = {
	.driver = {
		   .name = "hp-wmi",
		   .owner = THIS_MODULE,
	},
	.probe = hp_wmi_bios_setup,
	.remove = hp_wmi_bios_remove,
};

static int hp_wmi_perform_query(int query, int write, int value)
{
	struct bios_return bios_return;
	acpi_status status;
	union acpi_object *obj;
	struct bios_args args = {
		.signature = 0x55434553,
		.command = write ? 0x2 : 0x1,
		.commandtype = query,
		.datasize = write ? 0x4 : 0,
		.data = value,
	};
	struct acpi_buffer input = { sizeof(struct bios_args), &args };
	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };

	status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);

	obj = output.pointer;

	if (!obj || obj->type != ACPI_TYPE_BUFFER)
		return -EINVAL;

	bios_return = *((struct bios_return *)obj->buffer.pointer);
	if (bios_return.return_code > 0)
		return bios_return.return_code * -1;
	else
		return bios_return.value;
}

static int hp_wmi_display_state(void)
{
	return hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, 0);
}

static int hp_wmi_hddtemp_state(void)
{
	return hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, 0);
}

static int hp_wmi_als_state(void)
{
	return hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, 0);
}

static int hp_wmi_dock_state(void)
{
	return hp_wmi_perform_query(HPWMI_DOCK_QUERY, 0, 0);
}

static int hp_wmi_wifi_set(void *data, enum rfkill_state state)
{
	if (state)
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x101);
	else
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x100);
}

static int hp_wmi_bluetooth_set(void *data, enum rfkill_state state)
{
	if (state)
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x202);
	else
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x200);
}

static int hp_wmi_wwan_set(void *data, enum rfkill_state state)
{
	if (state)
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x404);
	else
		return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x400);
}

static int hp_wmi_wifi_state(void)
{
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);

	if (wireless & 0x100)
		return RFKILL_STATE_UNBLOCKED;
	else
		return RFKILL_STATE_SOFT_BLOCKED;
}

static int hp_wmi_bluetooth_state(void)
{
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);

	if (wireless & 0x10000)
		return RFKILL_STATE_UNBLOCKED;
	else
		return RFKILL_STATE_SOFT_BLOCKED;
}

static int hp_wmi_wwan_state(void)
{
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);

	if (wireless & 0x1000000)
		return RFKILL_STATE_UNBLOCKED;
	else
		return RFKILL_STATE_SOFT_BLOCKED;
}

static ssize_t show_display(struct device *dev, struct device_attribute *attr,
			    char *buf)
{
	int value = hp_wmi_display_state();
	if (value < 0)
		return -EINVAL;
	return sprintf(buf, "%d\n", value);
}

static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
			    char *buf)
{
	int value = hp_wmi_hddtemp_state();
	if (value < 0)
		return -EINVAL;
	return sprintf(buf, "%d\n", value);
}

static ssize_t show_als(struct device *dev, struct device_attribute *attr,
			char *buf)
{
	int value = hp_wmi_als_state();
	if (value < 0)
		return -EINVAL;
	return sprintf(buf, "%d\n", value);
}

static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	int value = hp_wmi_dock_state();
	if (value < 0)
		return -EINVAL;
	return sprintf(buf, "%d\n", value);
}

static ssize_t set_als(struct device *dev, struct device_attribute *attr,
		       const char *buf, size_t count)
{
	u32 tmp = simple_strtoul(buf, NULL, 10);
	hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, tmp);
	return count;
}

static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);

static struct key_entry *hp_wmi_get_entry_by_scancode(int code)
{
	struct key_entry *key;

	for (key = hp_wmi_keymap; key->type != KE_END; key++)
		if (code == key->code)
			return key;

	return NULL;
}

static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode)
{
	struct key_entry *key;

	for (key = hp_wmi_keymap; key->type != KE_END; key++)
		if (key->type == KE_KEY && keycode == key->keycode)
			return key;

	return NULL;
}

static int hp_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode)
{
	struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode);

	if (key && key->type == KE_KEY) {
		*keycode = key->keycode;
		return 0;
	}

	return -EINVAL;
}

static int hp_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode)
{
	struct key_entry *key;
	int old_keycode;

	if (keycode < 0 || keycode > KEY_MAX)
		return -EINVAL;

	key = hp_wmi_get_entry_by_scancode(scancode);
	if (key && key->type == KE_KEY) {
		old_keycode = key->keycode;
		key->keycode = keycode;
		set_bit(keycode, dev->keybit);
		if (!hp_wmi_get_entry_by_keycode(old_keycode))
			clear_bit(old_keycode, dev->keybit);
		return 0;
	}

	return -EINVAL;
}

static void hp_wmi_notify(u32 value, void *context)
{
	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
	static struct key_entry *key;
	union acpi_object *obj;

	wmi_get_event_data(value, &response);

	obj = (union acpi_object *)response.pointer;

	if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) {
		int eventcode = *((u8 *) obj->buffer.pointer);
		if (eventcode == 0x4)
			eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
							 0);
		key = hp_wmi_get_entry_by_scancode(eventcode);
		if (key) {
			switch (key->type) {
			case KE_KEY:
				input_report_key(hp_wmi_input_dev,
						 key->keycode, 1);
				input_sync(hp_wmi_input_dev);
				input_report_key(hp_wmi_input_dev,
						 key->keycode, 0);
				input_sync(hp_wmi_input_dev);
				break;
			case KE_SW:
				input_report_switch(hp_wmi_input_dev,
						    key->keycode,
						    hp_wmi_dock_state());
				input_sync(hp_wmi_input_dev);
				break;
			}
		} else if (eventcode == 0x5) {
			if (wifi_rfkill)
				rfkill_force_state(wifi_rfkill,
						   hp_wmi_wifi_state());
			if (bluetooth_rfkill)
				rfkill_force_state(bluetooth_rfkill,
						   hp_wmi_bluetooth_state());
			if (wwan_rfkill)
				rfkill_force_state(wwan_rfkill,
						   hp_wmi_wwan_state());
		} else
			printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
			       eventcode);
	} else
		printk(KERN_INFO "HP WMI: Unknown response received\n");
}

static int __init hp_wmi_input_setup(void)
{
	struct key_entry *key;
	int err;

	hp_wmi_input_dev = input_allocate_device();

	hp_wmi_input_dev->name = "HP WMI hotkeys";
	hp_wmi_input_dev->phys = "wmi/input0";
	hp_wmi_input_dev->id.bustype = BUS_HOST;
	hp_wmi_input_dev->getkeycode = hp_wmi_getkeycode;
	hp_wmi_input_dev->setkeycode = hp_wmi_setkeycode;

	for (key = hp_wmi_keymap; key->type != KE_END; key++) {
		switch (key->type) {
		case KE_KEY:
			set_bit(EV_KEY, hp_wmi_input_dev->evbit);
			set_bit(key->keycode, hp_wmi_input_dev->keybit);
			break;
		case KE_SW:
			set_bit(EV_SW, hp_wmi_input_dev->evbit);
			set_bit(key->keycode, hp_wmi_input_dev->swbit);

			/* Set initial dock state */
			input_report_switch(hp_wmi_input_dev, key->keycode,
					    hp_wmi_dock_state());
			input_sync(hp_wmi_input_dev);
			break;
		}
	}

	err = input_register_device(hp_wmi_input_dev);

	if (err) {
		input_free_device(hp_wmi_input_dev);
		return err;
	}

	return 0;
}

static void cleanup_sysfs(struct platform_device *device)
{
	device_remove_file(&device->dev, &dev_attr_display);
	device_remove_file(&device->dev, &dev_attr_hddtemp);
	device_remove_file(&device->dev, &dev_attr_als);
	device_remove_file(&device->dev, &dev_attr_dock);
}

static int __init hp_wmi_bios_setup(struct platform_device *device)
{
	int err;
	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);

	err = device_create_file(&device->dev, &dev_attr_display);
	if (err)
		goto add_sysfs_error;
	err = device_create_file(&device->dev, &dev_attr_hddtemp);
	if (err)
		goto add_sysfs_error;
	err = device_create_file(&device->dev, &dev_attr_als);
	if (err)
		goto add_sysfs_error;
	err = device_create_file(&device->dev, &dev_attr_dock);
	if (err)
		goto add_sysfs_error;

	if (wireless & 0x1) {
		wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN);
		wifi_rfkill->name = "hp-wifi";
		wifi_rfkill->state = hp_wmi_wifi_state();
		wifi_rfkill->toggle_radio = hp_wmi_wifi_set;
		wifi_rfkill->user_claim_unsupported = 1;
		err = rfkill_register(wifi_rfkill);
		if (err)
			goto add_sysfs_error;
	}

	if (wireless & 0x2) {
		bluetooth_rfkill = rfkill_allocate(&device->dev,
						   RFKILL_TYPE_BLUETOOTH);
		bluetooth_rfkill->name = "hp-bluetooth";
		bluetooth_rfkill->state = hp_wmi_bluetooth_state();
		bluetooth_rfkill->toggle_radio = hp_wmi_bluetooth_set;
		bluetooth_rfkill->user_claim_unsupported = 1;
		err = rfkill_register(bluetooth_rfkill);
		if (err)
			goto register_bluetooth_error;
	}

	if (wireless & 0x4) {
		wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN);
		wwan_rfkill->name = "hp-wwan";
		wwan_rfkill->state = hp_wmi_wwan_state();
		wwan_rfkill->toggle_radio = hp_wmi_wwan_set;
		wwan_rfkill->user_claim_unsupported = 1;
		err = rfkill_register(wwan_rfkill);
		if (err)
			goto register_wwan_err;
	}

	return 0;
register_wwan_err:
	if (bluetooth_rfkill)
		rfkill_unregister(bluetooth_rfkill);
register_bluetooth_error:
	if (wifi_rfkill)
		rfkill_unregister(wifi_rfkill);
add_sysfs_error:
	cleanup_sysfs(device);
	return err;
}

static int __exit hp_wmi_bios_remove(struct platform_device *device)
{
	cleanup_sysfs(device);

	if (wifi_rfkill)
		rfkill_unregister(wifi_rfkill);
	if (bluetooth_rfkill)
		rfkill_unregister(bluetooth_rfkill);
	if (wwan_rfkill)
		rfkill_unregister(wwan_rfkill);

	return 0;
}

static int __init hp_wmi_init(void)
{
	int err;

	if (wmi_has_guid(HPWMI_EVENT_GUID)) {
		err = wmi_install_notify_handler(HPWMI_EVENT_GUID,
						 hp_wmi_notify, NULL);
		if (!err)
			hp_wmi_input_setup();
	}

	if (wmi_has_guid(HPWMI_BIOS_GUID)) {
		err = platform_driver_register(&hp_wmi_driver);
		if (err)
			return 0;
		hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1);
		if (!hp_wmi_platform_dev) {
			platform_driver_unregister(&hp_wmi_driver);
			return 0;
		}
		platform_device_add(hp_wmi_platform_dev);
	}

	return 0;
}

static void __exit hp_wmi_exit(void)
{
	if (wmi_has_guid(HPWMI_EVENT_GUID)) {
		wmi_remove_notify_handler(HPWMI_EVENT_GUID);
		input_unregister_device(hp_wmi_input_dev);
	}
	if (hp_wmi_platform_dev) {
		platform_device_del(hp_wmi_platform_dev);
		platform_driver_unregister(&hp_wmi_driver);
	}
}

module_init(hp_wmi_init);
module_exit(hp_wmi_exit);
Commit	Line	Data
62ec30d4 MG	1	/*
	2	* HP WMI hotkeys
	3	*
	4	* Copyright (C) 2008 Red Hat <mjg@redhat.com>
	5	*
	6	* Portions based on wistron_btns.c:
	7	* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
	8	* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
	9	* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2 of the License, or
	14	* (at your option) any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; if not, write to the Free Software
	23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	24	*/
	25
	26	#include <linux/kernel.h>
	27	#include <linux/module.h>
	28	#include <linux/init.h>
	29	#include <linux/types.h>
	30	#include <linux/input.h>
	31	#include <acpi/acpi_drivers.h>
	32	#include <linux/platform_device.h>
	33	#include <linux/acpi.h>
	34	#include <linux/rfkill.h>
	35	#include <linux/string.h>
	36
	37	MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
	38	MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
	39	MODULE_LICENSE("GPL");
	40
	41	MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
	42	MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
	43
	44	#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
	45	#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
	46
	47	#define HPWMI_DISPLAY_QUERY 0x1
	48	#define HPWMI_HDDTEMP_QUERY 0x2
	49	#define HPWMI_ALS_QUERY 0x3
	50	#define HPWMI_DOCK_QUERY 0x4
	51	#define HPWMI_WIRELESS_QUERY 0x5
a8823aef	52	#define HPWMI_HOTKEY_QUERY 0xc
62ec30d4 MG	53
	54	static int __init hp_wmi_bios_setup(struct platform_device *device);
	55	static int __exit hp_wmi_bios_remove(struct platform_device *device);
	56
	57	struct bios_args {
	58	u32 signature;
	59	u32 command;
	60	u32 commandtype;
	61	u32 datasize;
	62	u32 data;
	63	};
	64
	65	struct bios_return {
	66	u32 sigpass;
	67	u32 return_code;
	68	u32 value;
	69	};
	70
	71	struct key_entry {
	72	char type; /* See KE_* below */
a8823aef	73	u16 code;
62ec30d4 MG	74	u16 keycode;
	75	};
	76
	77	enum { KE_KEY, KE_SW, KE_END };
	78
	79	static struct key_entry hp_wmi_keymap[] = {
	80	{KE_SW, 0x01, SW_DOCK},
	81	{KE_KEY, 0x02, KEY_BRIGHTNESSUP},
	82	{KE_KEY, 0x03, KEY_BRIGHTNESSDOWN},
a8823aef MG	83	{KE_KEY, 0x20e6, KEY_PROG1},
a8823aef MG	84	{KE_KEY, 0x2142, KEY_MEDIA},
5c624841	85	{KE_KEY, 0x213b, KEY_INFO},
a8823aef	86	{KE_KEY, 0x231b, KEY_HELP},
62ec30d4 MG	87	{KE_END, 0}
	88	};
	89
	90	static struct input_dev *hp_wmi_input_dev;
	91	static struct platform_device *hp_wmi_platform_dev;
	92
	93	static struct rfkill *wifi_rfkill;
	94	static struct rfkill *bluetooth_rfkill;
	95	static struct rfkill *wwan_rfkill;
	96
	97	static struct platform_driver hp_wmi_driver = {
	98	.driver = {
	99	.name = "hp-wmi",
	100	.owner = THIS_MODULE,
	101	},
	102	.probe = hp_wmi_bios_setup,
	103	.remove = hp_wmi_bios_remove,
	104	};
	105
	106	static int hp_wmi_perform_query(int query, int write, int value)
	107	{
	108	struct bios_return bios_return;
	109	acpi_status status;
	110	union acpi_object *obj;
	111	struct bios_args args = {
	112	.signature = 0x55434553,
	113	.command = write ? 0x2 : 0x1,
	114	.commandtype = query,
	115	.datasize = write ? 0x4 : 0,
	116	.data = value,
	117	};
	118	struct acpi_buffer input = { sizeof(struct bios_args), &args };
	119	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
	120
	121	status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
	122
	123	obj = output.pointer;
	124
	125	if (!obj \|\| obj->type != ACPI_TYPE_BUFFER)
	126	return -EINVAL;
	127
	128	bios_return = ((struct bios_return )obj->buffer.pointer);
	129	if (bios_return.return_code > 0)
	130	return bios_return.return_code * -1;
	131	else
	132	return bios_return.value;
	133	}
	134
	135	static int hp_wmi_display_state(void)
	136	{
	137	return hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, 0);
	138	}
	139
	140	static int hp_wmi_hddtemp_state(void)
	141	{
	142	return hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, 0);
	143	}
	144
	145	static int hp_wmi_als_state(void)
	146	{
	147	return hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, 0);
	148	}
	149
	150	static int hp_wmi_dock_state(void)
151	{
152	return hp_wmi_perform_query(HPWMI_DOCK_QUERY, 0, 0);
153	}
154
155	static int hp_wmi_wifi_set(void *data, enum rfkill_state state)
156	{
157	if (state)
158	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x101);
159	else
160	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x100);
161	}
162
163	static int hp_wmi_bluetooth_set(void *data, enum rfkill_state state)
164	{
165	if (state)
166	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x202);
167	else
168	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x200);
169	}
170
171	static int hp_wmi_wwan_set(void *data, enum rfkill_state state)
172	{
173	if (state)
174	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x404);
175	else
176	return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x400);
177	}
178
179	static int hp_wmi_wifi_state(void)
180	{
181	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
182
183	if (wireless & 0x100)
3f6e2f13	184	return RFKILL_STATE_UNBLOCKED;
62ec30d4	185	else
3f6e2f13	186	return RFKILL_STATE_SOFT_BLOCKED;
62ec30d4 MG	187	}
	188
	189	static int hp_wmi_bluetooth_state(void)
	190	{
	191	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
	192
	193	if (wireless & 0x10000)
3f6e2f13	194	return RFKILL_STATE_UNBLOCKED;
62ec30d4	195	else
3f6e2f13	196	return RFKILL_STATE_SOFT_BLOCKED;
62ec30d4 MG	197	}
	198
	199	static int hp_wmi_wwan_state(void)
	200	{
	201	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
	202
	203	if (wireless & 0x1000000)
3f6e2f13	204	return RFKILL_STATE_UNBLOCKED;
62ec30d4	205	else
3f6e2f13	206	return RFKILL_STATE_SOFT_BLOCKED;
62ec30d4 MG	207	}
	208
	209	static ssize_t show_display(struct device dev, struct device_attribute attr,
	210	char *buf)
	211	{
	212	int value = hp_wmi_display_state();
	213	if (value < 0)
	214	return -EINVAL;
	215	return sprintf(buf, "%d\n", value);
	216	}
	217
	218	static ssize_t show_hddtemp(struct device dev, struct device_attribute attr,
	219	char *buf)
	220	{
	221	int value = hp_wmi_hddtemp_state();
	222	if (value < 0)
	223	return -EINVAL;
	224	return sprintf(buf, "%d\n", value);
	225	}
	226
	227	static ssize_t show_als(struct device dev, struct device_attribute attr,
	228	char *buf)
	229	{
	230	int value = hp_wmi_als_state();
	231	if (value < 0)
	232	return -EINVAL;
	233	return sprintf(buf, "%d\n", value);
	234	}
	235
	236	static ssize_t show_dock(struct device dev, struct device_attribute attr,
	237	char *buf)
	238	{
	239	int value = hp_wmi_dock_state();
	240	if (value < 0)
	241	return -EINVAL;
	242	return sprintf(buf, "%d\n", value);
	243	}
	244
	245	static ssize_t set_als(struct device dev, struct device_attribute attr,
	246	const char *buf, size_t count)
	247	{
	248	u32 tmp = simple_strtoul(buf, NULL, 10);
	249	hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, tmp);
	250	return count;
	251	}
	252
	253	static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
	254	static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
	255	static DEVICE_ATTR(als, S_IRUGO \| S_IWUSR, show_als, set_als);
	256	static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
	257
	258	static struct key_entry *hp_wmi_get_entry_by_scancode(int code)
	259	{
	260	struct key_entry *key;
	261
	262	for (key = hp_wmi_keymap; key->type != KE_END; key++)
	263	if (code == key->code)
	264	return key;
	265
	266	return NULL;
	267	}
	268
	269	static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode)
	270	{
271	struct key_entry *key;
272
273	for (key = hp_wmi_keymap; key->type != KE_END; key++)
274	if (key->type == KE_KEY && keycode == key->keycode)
275	return key;
276
277	return NULL;
278	}
279
280	static int hp_wmi_getkeycode(struct input_dev dev, int scancode, int keycode)
281	{
282	struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode);
283
284	if (key && key->type == KE_KEY) {
285	*keycode = key->keycode;
286	return 0;
287	}
288
289	return -EINVAL;
290	}
291
292	static int hp_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode)
293	{
294	struct key_entry *key;
295	int old_keycode;
296
297	if (keycode < 0 \|\| keycode > KEY_MAX)
298	return -EINVAL;
299
300	key = hp_wmi_get_entry_by_scancode(scancode);
301	if (key && key->type == KE_KEY) {
302	old_keycode = key->keycode;
303	key->keycode = keycode;
304	set_bit(keycode, dev->keybit);
305	if (!hp_wmi_get_entry_by_keycode(old_keycode))
306	clear_bit(old_keycode, dev->keybit);
307	return 0;
308	}
309
310	return -EINVAL;
311	}
312
88429a10	313	static void hp_wmi_notify(u32 value, void *context)
62ec30d4 MG	314	{
	315	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
	316	static struct key_entry *key;
	317	union acpi_object *obj;
	318
	319	wmi_get_event_data(value, &response);
	320
	321	obj = (union acpi_object *)response.pointer;
	322
	323	if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) {
	324	int eventcode = ((u8 ) obj->buffer.pointer);
a8823aef MG	325	if (eventcode == 0x4)
	326	eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
	327	0);
62ec30d4 MG	328	key = hp_wmi_get_entry_by_scancode(eventcode);
	329	if (key) {
	330	switch (key->type) {
	331	case KE_KEY:
	332	input_report_key(hp_wmi_input_dev,
	333	key->keycode, 1);
	334	input_sync(hp_wmi_input_dev);
	335	input_report_key(hp_wmi_input_dev,
	336	key->keycode, 0);
	337	input_sync(hp_wmi_input_dev);
	338	break;
	339	case KE_SW:
	340	input_report_switch(hp_wmi_input_dev,
	341	key->keycode,
	342	hp_wmi_dock_state());
	343	input_sync(hp_wmi_input_dev);
	344	break;
	345	}
	346	} else if (eventcode == 0x5) {
	347	if (wifi_rfkill)
3f6e2f13 MG	348	rfkill_force_state(wifi_rfkill,
3f6e2f13 MG	349	hp_wmi_wifi_state());
62ec30d4	350	if (bluetooth_rfkill)
3f6e2f13 MG	351	rfkill_force_state(bluetooth_rfkill,
3f6e2f13 MG	352	hp_wmi_bluetooth_state());
62ec30d4	353	if (wwan_rfkill)
3f6e2f13 MG	354	rfkill_force_state(wwan_rfkill,
3f6e2f13 MG	355	hp_wmi_wwan_state());
62ec30d4 MG	356	} else
	357	printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
	358	eventcode);
	359	} else
	360	printk(KERN_INFO "HP WMI: Unknown response received\n");
	361	}
	362
	363	static int __init hp_wmi_input_setup(void)
	364	{
	365	struct key_entry *key;
	366	int err;
	367
	368	hp_wmi_input_dev = input_allocate_device();
	369
	370	hp_wmi_input_dev->name = "HP WMI hotkeys";
	371	hp_wmi_input_dev->phys = "wmi/input0";
	372	hp_wmi_input_dev->id.bustype = BUS_HOST;
	373	hp_wmi_input_dev->getkeycode = hp_wmi_getkeycode;
	374	hp_wmi_input_dev->setkeycode = hp_wmi_setkeycode;
	375
	376	for (key = hp_wmi_keymap; key->type != KE_END; key++) {
	377	switch (key->type) {
	378	case KE_KEY:
	379	set_bit(EV_KEY, hp_wmi_input_dev->evbit);
	380	set_bit(key->keycode, hp_wmi_input_dev->keybit);
	381	break;
	382	case KE_SW:
	383	set_bit(EV_SW, hp_wmi_input_dev->evbit);
	384	set_bit(key->keycode, hp_wmi_input_dev->swbit);
3095eb87 FP	385
	386	/* Set initial dock state */
	387	input_report_switch(hp_wmi_input_dev, key->keycode,
	388	hp_wmi_dock_state());
	389	input_sync(hp_wmi_input_dev);
62ec30d4 MG	390	break;
	391	}
	392	}
	393
	394	err = input_register_device(hp_wmi_input_dev);
	395
	396	if (err) {
	397	input_free_device(hp_wmi_input_dev);
	398	return err;
	399	}
	400
	401	return 0;
	402	}
	403
	404	static void cleanup_sysfs(struct platform_device *device)
	405	{
	406	device_remove_file(&device->dev, &dev_attr_display);
	407	device_remove_file(&device->dev, &dev_attr_hddtemp);
	408	device_remove_file(&device->dev, &dev_attr_als);
	409	device_remove_file(&device->dev, &dev_attr_dock);
	410	}
	411
	412	static int __init hp_wmi_bios_setup(struct platform_device *device)
	413	{
	414	int err;
3f6e2f13	415	int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
62ec30d4 MG	416
	417	err = device_create_file(&device->dev, &dev_attr_display);
	418	if (err)
	419	goto add_sysfs_error;
	420	err = device_create_file(&device->dev, &dev_attr_hddtemp);
	421	if (err)
	422	goto add_sysfs_error;
	423	err = device_create_file(&device->dev, &dev_attr_als);
	424	if (err)
	425	goto add_sysfs_error;
	426	err = device_create_file(&device->dev, &dev_attr_dock);
	427	if (err)
	428	goto add_sysfs_error;
	429
3f6e2f13 MG	430	if (wireless & 0x1) {
	431	wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN);
	432	wifi_rfkill->name = "hp-wifi";
	433	wifi_rfkill->state = hp_wmi_wifi_state();
	434	wifi_rfkill->toggle_radio = hp_wmi_wifi_set;
	435	wifi_rfkill->user_claim_unsupported = 1;
fe8e4e03 LF	436	err = rfkill_register(wifi_rfkill);
	437	if (err)
	438	goto add_sysfs_error;
3f6e2f13 MG	439	}
	440
	441	if (wireless & 0x2) {
	442	bluetooth_rfkill = rfkill_allocate(&device->dev,
	443	RFKILL_TYPE_BLUETOOTH);
	444	bluetooth_rfkill->name = "hp-bluetooth";
	445	bluetooth_rfkill->state = hp_wmi_bluetooth_state();
	446	bluetooth_rfkill->toggle_radio = hp_wmi_bluetooth_set;
	447	bluetooth_rfkill->user_claim_unsupported = 1;
fe8e4e03	448	err = rfkill_register(bluetooth_rfkill);
6989d565	449	if (err)
fe8e4e03	450	goto register_bluetooth_error;
3f6e2f13 MG	451	}
	452
	453	if (wireless & 0x4) {
	454	wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN);
	455	wwan_rfkill->name = "hp-wwan";
	456	wwan_rfkill->state = hp_wmi_wwan_state();
	457	wwan_rfkill->toggle_radio = hp_wmi_wwan_set;
	458	wwan_rfkill->user_claim_unsupported = 1;
fe8e4e03 LF	459	err = rfkill_register(wwan_rfkill);
	460	if (err)
	461	goto register_wwan_err;
3f6e2f13	462	}
62ec30d4 MG	463
62ec30d4 MG	464	return 0;
fe8e4e03	465	register_wwan_err:
44f0606d AM	466	if (bluetooth_rfkill)
44f0606d AM	467	rfkill_unregister(bluetooth_rfkill);
fe8e4e03	468	register_bluetooth_error:
44f0606d AM	469	if (wifi_rfkill)
44f0606d AM	470	rfkill_unregister(wifi_rfkill);
62ec30d4 MG	471	add_sysfs_error:
	472	cleanup_sysfs(device);
	473	return err;
	474	}
	475
	476	static int __exit hp_wmi_bios_remove(struct platform_device *device)
	477	{
	478	cleanup_sysfs(device);
	479
3f6e2f13 MG	480	if (wifi_rfkill)
	481	rfkill_unregister(wifi_rfkill);
	482	if (bluetooth_rfkill)
	483	rfkill_unregister(bluetooth_rfkill);
	484	if (wwan_rfkill)
	485	rfkill_unregister(wwan_rfkill);
62ec30d4 MG	486
	487	return 0;
	488	}
	489
	490	static int __init hp_wmi_init(void)
	491	{
	492	int err;
	493
	494	if (wmi_has_guid(HPWMI_EVENT_GUID)) {
	495	err = wmi_install_notify_handler(HPWMI_EVENT_GUID,
	496	hp_wmi_notify, NULL);
	497	if (!err)
	498	hp_wmi_input_setup();
	499	}
	500
	501	if (wmi_has_guid(HPWMI_BIOS_GUID)) {
	502	err = platform_driver_register(&hp_wmi_driver);
	503	if (err)
	504	return 0;
	505	hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1);
	506	if (!hp_wmi_platform_dev) {
	507	platform_driver_unregister(&hp_wmi_driver);
	508	return 0;
	509	}
	510	platform_device_add(hp_wmi_platform_dev);
	511	}
	512
	513	return 0;
	514	}
	515
	516	static void __exit hp_wmi_exit(void)
	517	{
	518	if (wmi_has_guid(HPWMI_EVENT_GUID)) {
	519	wmi_remove_notify_handler(HPWMI_EVENT_GUID);
	520	input_unregister_device(hp_wmi_input_dev);
	521	}
	522	if (hp_wmi_platform_dev) {
	523	platform_device_del(hp_wmi_platform_dev);
	524	platform_driver_unregister(&hp_wmi_driver);
	525	}
	526	}
	527
	528	module_init(hp_wmi_init);
	529	module_exit(hp_wmi_exit);