Release 4.9 drivers/platform/x86/asus-wmi.c

/*
 * Asus PC WMI hotkey driver
 *
 * Copyright(C) 2010 Intel Corporation.
 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.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
 */


#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/slab.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/fb.h>
#include <linux/backlight.h>
#include <linux/leds.h>
#include <linux/rfkill.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/platform_device.h>
#include <linux/thermal.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <acpi/video.h>

#include "asus-wmi.h"

MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, "
	      "Yong Wang <yong.y.wang@intel.com>");
MODULE_DESCRIPTION("Asus Generic WMI Driver");
MODULE_LICENSE("GPL");


#define to_asus_wmi_driver(pdrv)					\
	(container_of((pdrv), struct asus_wmi_driver, platform_driver))


#define ASUS_WMI_MGMT_GUID	"97845ED0-4E6D-11DE-8A39-0800200C9A66"


#define NOTIFY_BRNUP_MIN		0x11

#define NOTIFY_BRNUP_MAX		0x1f

#define NOTIFY_BRNDOWN_MIN		0x20

#define NOTIFY_BRNDOWN_MAX		0x2e

#define NOTIFY_KBD_BRTUP		0xc4

#define NOTIFY_KBD_BRTDWN		0xc5

/* WMI Methods */

#define ASUS_WMI_METHODID_SPEC	        0x43455053 
/* BIOS SPECification */

#define ASUS_WMI_METHODID_SFBD		0x44424653 
/* Set First Boot Device */

#define ASUS_WMI_METHODID_GLCD		0x44434C47 
/* Get LCD status */

#define ASUS_WMI_METHODID_GPID		0x44495047 
/* Get Panel ID?? (Resol) */

#define ASUS_WMI_METHODID_QMOD		0x444F4D51 
/* Quiet MODe */

#define ASUS_WMI_METHODID_SPLV		0x4C425053 
/* Set Panel Light Value */

#define ASUS_WMI_METHODID_AGFN		0x4E464741 
/* FaN? */

#define ASUS_WMI_METHODID_SFUN		0x4E554653 
/* FUNCtionalities */

#define ASUS_WMI_METHODID_SDSP		0x50534453 
/* Set DiSPlay output */

#define ASUS_WMI_METHODID_GDSP		0x50534447 
/* Get DiSPlay output */

#define ASUS_WMI_METHODID_DEVP		0x50564544 
/* DEVice Policy */

#define ASUS_WMI_METHODID_OSVR		0x5256534F 
/* OS VeRsion */

#define ASUS_WMI_METHODID_DSTS		0x53544344 
/* Device STatuS */

#define ASUS_WMI_METHODID_DSTS2		0x53545344 
/* Device STatuS #2*/

#define ASUS_WMI_METHODID_BSTS		0x53545342 
/* Bios STatuS ? */

#define ASUS_WMI_METHODID_DEVS		0x53564544 
/* DEVice Set */

#define ASUS_WMI_METHODID_CFVS		0x53564643 
/* CPU Frequency Volt Set */

#define ASUS_WMI_METHODID_KBFT		0x5446424B 
/* KeyBoard FilTer */

#define ASUS_WMI_METHODID_INIT		0x54494E49 
/* INITialize */

#define ASUS_WMI_METHODID_HKEY		0x59454B48 
/* Hot KEY ?? */


#define ASUS_WMI_UNSUPPORTED_METHOD	0xFFFFFFFE

/* Wireless */

#define ASUS_WMI_DEVID_HW_SWITCH	0x00010001

#define ASUS_WMI_DEVID_WIRELESS_LED	0x00010002

#define ASUS_WMI_DEVID_CWAP		0x00010003

#define ASUS_WMI_DEVID_WLAN		0x00010011

#define ASUS_WMI_DEVID_WLAN_LED		0x00010012

#define ASUS_WMI_DEVID_BLUETOOTH	0x00010013

#define ASUS_WMI_DEVID_GPS		0x00010015

#define ASUS_WMI_DEVID_WIMAX		0x00010017

#define ASUS_WMI_DEVID_WWAN3G		0x00010019

#define ASUS_WMI_DEVID_UWB		0x00010021

/* Leds */
/* 0x000200XX and 0x000400XX */

#define ASUS_WMI_DEVID_LED1		0x00020011

#define ASUS_WMI_DEVID_LED2		0x00020012

#define ASUS_WMI_DEVID_LED3		0x00020013

#define ASUS_WMI_DEVID_LED4		0x00020014

#define ASUS_WMI_DEVID_LED5		0x00020015

#define ASUS_WMI_DEVID_LED6		0x00020016

/* Backlight and Brightness */

#define ASUS_WMI_DEVID_ALS_ENABLE	0x00050001 
/* Ambient Light Sensor */

#define ASUS_WMI_DEVID_BACKLIGHT	0x00050011

#define ASUS_WMI_DEVID_BRIGHTNESS	0x00050012

#define ASUS_WMI_DEVID_KBD_BACKLIGHT	0x00050021

#define ASUS_WMI_DEVID_LIGHT_SENSOR	0x00050022 
/* ?? */

/* Misc */

#define ASUS_WMI_DEVID_CAMERA		0x00060013

/* Storage */

#define ASUS_WMI_DEVID_CARDREADER	0x00080013

/* Input */

#define ASUS_WMI_DEVID_TOUCHPAD		0x00100011

#define ASUS_WMI_DEVID_TOUCHPAD_LED	0x00100012

/* Fan, Thermal */

#define ASUS_WMI_DEVID_THERMAL_CTRL	0x00110011

#define ASUS_WMI_DEVID_FAN_CTRL		0x00110012

/* Power */

#define ASUS_WMI_DEVID_PROCESSOR_STATE	0x00120012

/* Deep S3 / Resume on LID open */

#define ASUS_WMI_DEVID_LID_RESUME	0x00120031

/* DSTS masks */

#define ASUS_WMI_DSTS_STATUS_BIT	0x00000001

#define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002

#define ASUS_WMI_DSTS_PRESENCE_BIT	0x00010000

#define ASUS_WMI_DSTS_USER_BIT		0x00020000

#define ASUS_WMI_DSTS_BIOS_BIT		0x00040000

#define ASUS_WMI_DSTS_BRIGHTNESS_MASK	0x000000FF

#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK	0x0000FF00


#define ASUS_FAN_DESC			"cpu_fan"

#define ASUS_FAN_MFUN			0x13

#define ASUS_FAN_SFUN_READ		0x06

#define ASUS_FAN_SFUN_WRITE		0x07

#define ASUS_FAN_CTRL_MANUAL		1

#define ASUS_FAN_CTRL_AUTO		2


struct bios_args {
	
u32 arg0;
	
u32 arg1;
} 
__packed;

/*
 * Struct that's used for all methods called via AGFN. Naming is
 * identically to the AML code.
 */

struct agfn_args {
	
u16 mfun; /* probably "Multi-function" to be called */
	
u16 sfun; /* probably "Sub-function" to be called */
	
u16 len;  /* size of the hole struct, including subfunction fields */
	
u8 stas;  /* not used by now */
	
u8 err;   /* zero on success */
} 
__packed;

/* struct used for calling fan read and write methods */

struct fan_args {
	
struct agfn_args agfn;	/* common fields */
	
u8 fan;			/* fan number: 0: set auto mode 1: 1st fan */
	
u32 speed;		/* read: RPM/100 - write: 0-255 */
} 
__packed;

/*
 * <platform>/    - debugfs root directory
 *   dev_id      - current dev_id
 *   ctrl_param  - current ctrl_param
 *   method_id   - current method_id
 *   devs        - call DEVS(dev_id, ctrl_param) and print result
 *   dsts        - call DSTS(dev_id)  and print result
 *   call        - call method_id(dev_id, ctrl_param) and print result
 */

struct asus_wmi_debug {
	
struct dentry *root;
	
u32 method_id;
	
u32 dev_id;
	
u32 ctrl_param;
};


struct asus_rfkill {
	
struct asus_wmi *asus;
	
struct rfkill *rfkill;
	
u32 dev_id;
};


struct asus_wmi {
	
int dsts_id;
	
int spec;
	
int sfun;

	
struct input_dev *inputdev;
	
struct backlight_device *backlight_device;
	
struct platform_device *platform_device;

	
struct led_classdev wlan_led;
	
int wlan_led_wk;
	
struct led_classdev tpd_led;
	
int tpd_led_wk;
	
struct led_classdev kbd_led;
	
int kbd_led_wk;
	
struct workqueue_struct *led_workqueue;
	
struct work_struct tpd_led_work;
	
struct work_struct kbd_led_work;
	
struct work_struct wlan_led_work;

	
struct asus_rfkill wlan;
	
struct asus_rfkill bluetooth;
	
struct asus_rfkill wimax;
	
struct asus_rfkill wwan3g;
	
struct asus_rfkill gps;
	
struct asus_rfkill uwb;

	
bool asus_hwmon_fan_manual_mode;
	
int asus_hwmon_num_fans;
	
int asus_hwmon_pwm;

	
struct hotplug_slot *hotplug_slot;
	
struct mutex hotplug_lock;
	
struct mutex wmi_lock;
	
struct workqueue_struct *hotplug_workqueue;
	
struct work_struct hotplug_work;

	
struct asus_wmi_debug debug;

	
struct asus_wmi_driver *driver;
};



static int asus_wmi_input_init(struct asus_wmi *asus)
{
	int err;

	asus->inputdev = input_allocate_device();
	if (!asus->inputdev)
		return -ENOMEM;

	asus->inputdev->name = asus->driver->input_name;
	asus->inputdev->phys = asus->driver->input_phys;
	asus->inputdev->id.bustype = BUS_HOST;
	asus->inputdev->dev.parent = &asus->platform_device->dev;
	set_bit(EV_REP, asus->inputdev->evbit);

	err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
	if (err)
		goto err_free_dev;

	err = input_register_device(asus->inputdev);
	if (err)
		goto err_free_keymap;

	return 0;

err_free_keymap:
	sparse_keymap_free(asus->inputdev);
err_free_dev:
	input_free_device(asus->inputdev);
	return err;
}

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seth forshee
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static void asus_wmi_input_exit(struct asus_wmi *asus)
{
	if (asus->inputdev) {
		sparse_keymap_free(asus->inputdev);
		input_unregister_device(asus->inputdev);
	}

	asus->inputdev = NULL;
}

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static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
				    u32 *retval)
{
	struct bios_args args = {
		.arg0 = arg0,
		.arg1 = arg1,
        };
	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
	acpi_status status;
	union acpi_object *obj;
	u32 tmp = 0;

	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
				     &input, &output);

	if (ACPI_FAILURE(status))
		goto exit;

	obj = (union acpi_object *)output.pointer;
	if (obj && obj->type == ACPI_TYPE_INTEGER)
		tmp = (u32) obj->integer.value;

	if (retval)
		*retval = tmp;

	kfree(obj);

exit:
	if (ACPI_FAILURE(status))
		return -EIO;

	if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
		return -ENODEV;

	return 0;
}

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static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
{
	struct acpi_buffer input;
	u64 phys_addr;
	u32 retval;
	u32 status = -1;

	/*
         * Copy to dma capable address otherwise memory corruption occurs as
         * bios has to be able to access it.
         */
	input.pointer = kzalloc(args.length, GFP_DMA | GFP_KERNEL);
	input.length = args.length;
	if (!input.pointer)
		return -ENOMEM;
	phys_addr = virt_to_phys(input.pointer);
	memcpy(input.pointer, args.pointer, args.length);

	status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
					phys_addr, 0, &retval);
	if (!status)
		memcpy(args.pointer, input.pointer, args.length);

	kfree(input.pointer);
	if (status)
		return -ENXIO;

	return retval;
}

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static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
{
	return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
}

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static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
				 u32 *retval)
{
	return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
					ctrl_param, retval);
}

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/* Helper for special devices with magic return codes */


static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
				      u32 dev_id, u32 mask)
{
	u32 retval = 0;
	int err;

	err = asus_wmi_get_devstate(asus, dev_id, &retval);

	if (err < 0)
		return err;

	if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
		return -ENODEV;

	if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
		if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
			return -ENODEV;
	}

	return retval & mask;
}

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static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
{
	return asus_wmi_get_devstate_bits(asus, dev_id,
					  ASUS_WMI_DSTS_STATUS_BIT);
}

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/*
 * LEDs
 */
/*
 * These functions actually update the LED's, and are called from a
 * workqueue. By doing this as separate work rather than when the LED
 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
 * potentially bad time, such as a timer interrupt.
 */


static void tpd_led_update(struct work_struct *work)
{
	int ctrl_param;
	struct asus_wmi *asus;

	asus = container_of(work, struct asus_wmi, tpd_led_work);

	ctrl_param = asus->tpd_led_wk;
	asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
}

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static void tpd_led_set(struct led_classdev *led_cdev,
			enum led_brightness value)
{
	struct asus_wmi *asus;

	asus = container_of(led_cdev, struct asus_wmi, tpd_led);

	asus->tpd_led_wk = !!value;
	queue_work(asus->led_workqueue, &asus->tpd_led_work);
}

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static int read_tpd_led_state(struct asus_wmi *asus)
{
	return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
}

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static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
{
	struct asus_wmi *asus;

	asus = container_of(led_cdev, struct asus_wmi, tpd_led);

	return read_tpd_led_state(asus);
}

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static void kbd_led_update(struct work_struct *work)
{
	int ctrl_param = 0;
	struct asus_wmi *asus;

	asus = container_of(work, struct asus_wmi, kbd_led_work);

	/*
         * bits 0-2: level
         * bit 7: light on/off
         */
	if (asus->kbd_led_wk > 0)
		ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);

	asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
}

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static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
{
	int retval;

	/*
         * bits 0-2: level
         * bit 7: light on/off
         * bit 8-10: environment (0: dark, 1: normal, 2: light)
         * bit 17: status unknown
         */
	retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
					    0xFFFF);

	/* Unknown status is considered as off */
	if (retval == 0x8000)
		retval = 0;

	if (retval >= 0) {
		if (level)
			*level = retval & 0x7F;
		if (env)
			*env = (retval >> 8) & 0x7F;
		retval = 0;
	}

	return retval;
}

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static void kbd_led_set(struct led_classdev *led_cdev,
			enum led_brightness value)
{
	struct asus_wmi *asus;

	asus = container_of(led_cdev, struct asus_wmi, kbd_led);

	if (value > asus->kbd_led.max_brightness)
		value = asus->kbd_led.max_brightness;
	else if (value < 0)
		value = 0;

	asus->kbd_led_wk = value;
	queue_work(asus->led_workqueue, &asus->kbd_led_work);
}

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static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
{
	struct asus_wmi *asus;
	int retval, value;

	asus = container_of(led_cdev, struct asus_wmi, kbd_led);

	retval = kbd_led_read(asus, &value, NULL);

	if (retval < 0)
		return retval;

	return value;
}

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static int wlan_led_unknown_state(struct asus_wmi *asus)
{
	u32 result;

	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);

	return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
}

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static int wlan_led_presence(struct asus_wmi *asus)
{
	u32 result;

	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);

	return result & ASUS_WMI_DSTS_PRESENCE_BIT;
}

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static void wlan_led_update(struct work_struct *work)
{
	int ctrl_param;
	struct asus_wmi *asus;

	asus = container_of(work, struct asus_wmi, wlan_led_work);

	ctrl_param = asus->wlan_led_wk;
	asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
}

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static void wlan_led_set(struct led_classdev *led_cdev,
			 enum led_brightness value)
{
	struct asus_wmi *asus;

	asus = container_of(led_cdev, struct asus_wmi, wlan_led);

	asus->wlan_led_wk = !!value;
	queue_work(asus->led_workqueue, &asus->wlan_led_work);
}

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52
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52
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static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
{
	struct asus_wmi *asus;
	u32 result;

	asus = container_of(led_cdev, struct asus_wmi, wlan_led);
	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);

	return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
}

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static void asus_wmi_led_exit(struct asus_wmi *asus)
{
	if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
		led_classdev_unregister(&asus->kbd_led);
	if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
		led_classdev_unregister(&asus->tpd_led);
	if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
		led_classdev_unregister(&asus->wlan_led);
	if (asus->led_workqueue)
		destroy_workqueue(asus->led_workqueue);
}

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corentin chary
40
47.62%
1
33.33%
axel lin
axel lin
24
28.57%
1
33.33%
acelan kao
acelan kao
20
23.81%
1
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84
100.00%
3
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static int asus_wmi_led_init(struct asus_wmi *asus)
{
	int rv = 0, led_val;

	asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
	if (!asus->led_workqueue)
		return -ENOMEM;

	if (read_tpd_led_state(asus) >= 0) {
		INIT_WORK(&asus->tpd_led_work, tpd_led_update);

		asus->tpd_led.name = "asus::touchpad";
		asus->tpd_led.brightness_set = tpd_led_set;
		asus->tpd_led.brightness_get = tpd_led_get;
		asus->tpd_led.max_brightness = 1;

		rv = led_classdev_register(&asus->platform_device->dev,
					   &asus->tpd_led);
		if (rv)
			goto error;
	}

	led_val = kbd_led_read(asus, NULL, NULL);
	if (led_val >= 0) {
		INIT_WORK(&asus->kbd_led_work, kbd_led_update);

		asus->kbd_led_wk = led_val;
		asus->kbd_led.name = "asus::kbd_backlight";
		asus->kbd_led.brightness_set = kbd_led_set;
		asus->kbd_led.brightness_get = kbd_led_get;
		asus->kbd_led.max_brightness = 3;

		rv = led_classdev_register(&asus->platform_device->dev,
					   &asus->kbd_led);
		if (rv)
			goto error;
	}

	if (wlan_led_presence(asus) && (asus->driver->quirks->wapf > 0)) {
		INIT_WORK(&asus->wlan_led_work, wlan_led_update);

		asus->wlan_led.name = "asus::wlan";
		asus->wlan_led.brightness_set = wlan_led_set;
		if (!wlan_led_unknown_state(asus))
			asus->wlan_led.brightness_get = wlan_led_get;
		asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
		asus->wlan_led.max_brightness = 1;
		asus->wlan_led.default_trigger = "asus-wlan";

		rv = led_classdev_register(&asus->platform_device->dev,
					   &asus->wlan_led);
	}

error:
	if (rv)
		asus_wmi_led_exit(asus);

	return rv;
}


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acelan kao
111
34.26%
3
37.50%
oleksij rempel
oleksij rempel
14
4.32%
1
12.50%
Total
324
100.00%
8
100.00%

/*
 * PCI hotplug (for wlan rfkill)
 */


static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
{
	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);

	if (result < 0)
		return false;
	return !result;
}

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static void asus_rfkill_hotplug(struct asus_wmi *asus)
{
	struct pci_dev *dev;
	struct pci_bus *bus;
	bool blocked;
	bool absent;
	u32 l;

	mutex_lock(&asus->wmi_lock);
	blocked = asus_wlan_rfkill_blocked(asus);
	mutex_unlock(&asus->wmi_lock);

	mutex_lock(&asus->hotplug_lock);
	pci_lock_rescan_remove();

	if (asus->wlan.rfkill)
		rfkill_set_sw_state(asus->wlan.rfkill, blocked);

	if (asus->hotplug_slot) {
		bus = pci_find_bus(0, 1);
		if (!bus) {
			pr_warn("Unable to find PCI bus 1?\n");
			goto out_unlock;
		}

		if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
			pr_err("Unable to read PCI config space?\n");
			goto out_unlock;
		}
		absent = (l == 0xffffffff);

		if (blocked != absent) {
			pr_warn("BIOS says wireless lan is %s, "
				"but the pci device is %s\n",
				blocked ? "blocked" : "unblocked",
				absent ? "absent" : "present");
			pr_warn("skipped wireless hotplug as probably "
				"inappropriate for this model\n");
			goto out_unlock;
		}

		if (!blocked) {
			dev = pci_get_slot(bus, 0);
			if (dev) {
				/* Device already present */
				pci_dev_put(dev);
				goto out_unlock;
			}
			dev = pci_scan_single_device(bus, 0);
			if (dev) {
				pci_bus_assign_resources(bus);
				pci_bus_add_device(dev);
			}
		} else {
			dev = pci_get_slot(bus, 0);
			if (dev) {
				pci_stop_and_remove_bus_device(dev);
				pci_dev_put(dev);
			}
		}
	}

out_unlock:
	pci_unlock_rescan_remove();
	mutex_unlock(&asus->hotplug_lock);
}

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6
2.15%
1
14.29%
joe perches
joe perches
3
1.08%
1
14.29%
yinghai lu
yinghai lu
1
0.36%
1
14.29%
Total
279
100.00%
7
100.00%



static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
{
	struct asus_wmi *asus = data;

	if (event != ACPI_NOTIFY_BUS_CHECK)
		return;

	/*
         * We can't call directly asus_rfkill_hotplug because most
         * of the time WMBC is still being executed and not reetrant.
         * There is currently no way to tell ACPICA that  we want this
         * method to be serialized, we schedule a asus_rfkill_hotplug
         * call later, in a safer context.
         */
	queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
}

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static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
{
	acpi_status status;
	acpi_handle handle;

	status = acpi_get_handle(NULL, node, &handle);

	if (ACPI_SUCCESS(status)) {
		status = acpi_install_notify_handler(handle,
						     ACPI_SYSTEM_NOTIFY,
						     asus_rfkill_notify, asus);
		if (ACPI_FAILURE(status))
			pr_warn("Failed to register notify on %s\n", node);
	} else
		return -ENODEV;

	return 0;
}

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1
1.30%
1
33.33%
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77
100.00%
3
100.00%



static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
{
	acpi_status status = AE_OK;
	acpi_handle handle;

	status = acpi_get_handle(NULL, node, &handle);

	if (ACPI_SUCCESS(status)) {
		status = acpi_remove_notify_handler(handle,
						    ACPI_SYSTEM_NOTIFY,
						    asus_rfkill_notify);
		if (ACPI_FAILURE(status))
			pr_err("Error removing rfkill notify handler %s\n",
			       node);
	}
}

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static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
				   u8 *value)
{
	struct asus_wmi *asus = hotplug_slot->private;
	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);

	if (result < 0)
		return result;

	*value = !!result;
	return 0;
}

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static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
{
	kfree(hotplug_slot->info);
	kfree(hotplug_slot);
}

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static struct hotplug_slot_ops asus_hotplug_slot_ops = {
	.owner = THIS_MODULE,
	.get_adapter_status = asus_get_adapter_status,
	.get_power_status = asus_get_adapter_status,
};



static void asus_hotplug_work(struct work_struct *work)
{
	struct asus_wmi *asus;

	asus = container_of(work, struct asus_wmi, hotplug_work);
	asus_rfkill_hotplug(asus);
}

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static int asus_setup_pci_hotplug(struct asus_wmi *asus)
{
	int ret = -ENOMEM;
	struct pci_bus *bus = pci_find_bus(0, 1);

	if (!bus) {
		pr_err("Unable to find wifi PCI bus\n");
		return -ENODEV;
	}

	asus->hotplug_workqueue =
	    create_singlethread_workqueue("hotplug_workqueue");
	if (!asus->hotplug_workqueue)
		goto error_workqueue;

	INIT_WORK(&asus->hotplug_work, asus_hotplug_work);

	asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
	if (!asus->hotplug_slot)
		goto error_slot;

	asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
					   GFP_KERNEL);
	if (!asus->hotplug_slot->info)
		goto error_info;

	asus->hotplug_slot->private = asus;
	asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
	asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
	asus_get_adapter_status(asus->hotplug_slot,
				&asus->hotplug_slot->info->adapter_status);

	ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
	if (ret) {
		pr_err("Unable to register hotplug slot - %d\n", ret);
		goto error_register;
	}

	return 0;

error_register:
	kfree(asus->hotplug_slot->info);
error_info:
	kfree(asus->hotplug_slot);
	asus->hotplug_slot = NULL;
error_slot:
	destroy_workqueue(asus->hotplug_workqueue);
error_workqueue:
	return ret;
}

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/*
 * Rfkill devices
 */


static int asus_rfkill_set(void *data, bool blocked)
{
	struct asus_rfkill *priv = data;
	u32 ctrl_param = !blocked;
	u32 dev_id = priv->dev_id;

	/*
         * If the user bit is set, BIOS can't set and record the wlan status,
         * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
         * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
         * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
         * while setting the wlan status through WMI.
         * This is also the behavior that windows app will do.
         */
	if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
	     priv->asus->driver->wlan_ctrl_by_user)
		dev_id = ASUS_WMI_DEVID_WLAN_LED;

	return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
}

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28
43.75%
1
16.67%
Total
64
100.00%
6
100.00%



static void asus_rfkill_query(struct rfkill *rfkill, void *data)
{
	struct asus_rfkill *priv = data;
	int result;

	result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);

	if (result < 0)
		return;

	rfkill_set_sw_state(priv->rfkill, !result);
}

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55
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static int asus_rfkill_wlan_set(void *data, bool blocked)
{
	struct asus_rfkill *priv = data;
	struct asus_wmi *asus = priv->asus;
	int ret;

	/*
         * This handler is enabled only if hotplug is enabled.
         * In this case, the asus_wmi_set_devstate() will
         * trigger a wmi notification and we need to wait
         * this call to finish before being able to call
         * any wmi method
         */
	mutex_lock(&asus->wmi_lock);
	ret = asus_rfkill_set(data, blocked);
	mutex_unlock(&asus->wmi_lock);
	return ret;
}

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static const struct rfkill_ops asus_rfkill_wlan_ops = {
	.set_block = asus_rfkill_wlan_set,
	.query = asus_rfkill_query,
};


static const struct rfkill_ops asus_rfkill_ops = {
	.set_block = asus_rfkill_set,
	.query = asus_rfkill_query,
};



static int asus_new_rfkill(struct asus_wmi *asus,
			   struct asus_rfkill *arfkill,
			   const char *name, enum rfkill_type type, int dev_id)
{
	int result = asus_wmi_get_devstate_simple(asus, dev_id);
	struct rfkill **rfkill = &arfkill->rfkill;

	if (result < 0)
		return result;

	arfkill->dev_id = dev_id;
	arfkill->asus = asus;

	if (dev_id == ASUS_WMI_DEVID_WLAN &&
	    asus->driver->quirks->hotplug_wireless)
		*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
				       &asus_rfkill_wlan_ops, arfkill);
	else
		*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
				       &asus_rfkill_ops, arfkill);

	if (!*rfkill)
		return -EINVAL;

	if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
			(asus->driver->quirks->wapf > 0))
		rfkill_set_led_trigger_name(*rfkill, "asus-wlan");

	rfkill_init_sw_state(*rfkill, !result);
	result = rfkill_register(*rfkill);
	if (result) {
		rfkill_destroy(*rfkill);
		*rfkill = NULL;
		return result;
	}
	return 0;
}

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207
100.00%
10
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static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
{
	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
	asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
	if (asus->wlan.rfkill) {
		rfkill_unregister(asus->wlan.rfkill);
		rfkill_destroy(asus->wlan.rfkill);
		asus->wlan.rfkill = NULL;
	}
	/*
         * Refresh pci hotplug in case the rfkill state was changed after
         * asus_unregister_rfkill_notifier()
         */
	asus_rfkill_hotplug(asus);
	if (asus->hotplug_slot)
		pci_hp_deregister(asus->hotplug_slot);
	if (asus->hotplug_workqueue)
		destroy_workqueue(asus->hotplug_workqueue);

	if (asus->bluetooth.rfkill) {
		rfkill_unregister(asus->bluetooth.rfkill);
		rfkill_destroy(asus->bluetooth.rfkill);
		asus->bluetooth.rfkill = NULL;
	}
	if (asus->wimax.rfkill) {
		rfkill_unregister(asus->wimax.rfkill);
		rfkill_destroy(asus->wimax.rfkill);
		asus->wimax.rfkill = NULL;
	}
	if (asus->wwan3g.rfkill) {
		rfkill_unregister(asus->wwan3g.rfkill);
		rfkill_destroy(asus->wwan3g.rfkill);
		asus->wwan3g.rfkill = NULL;
	}
	if (asus->gps.rfkill) {
		rfkill_unregister(asus->gps.rfkill);
		rfkill_destroy(asus->gps.rfkill);
		asus->gps.rfkill = NULL;
	}
	if (asus->uwb.rfkill) {
		rfkill_unregister(asus->uwb.rfkill);
		rfkill_destroy(asus->uwb.rfkill);
		asus->uwb.rfkill = NULL;
	}
}

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static int asus_wmi_rfkill_init(struct asus_wmi *asus)
{
	int result = 0;

	mutex_init(&asus->hotplug_lock);
	mutex_init(&asus->wmi_lock);

	result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
				 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);

	if (result && result != -ENODEV)
		goto exit;

	result = asus_new_rfkill(asus, &asus->bluetooth,
				 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
				 ASUS_WMI_DEVID_BLUETOOTH);

	if (result && result != -ENODEV)
		goto exit;

	result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
				 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);

	if (result && result != -ENODEV)
		goto exit;

	result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
				 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);

	if (result && result != -ENODEV)
		goto exit;

	result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
				 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);

	if (result && result != -ENODEV)
		goto exit;

	result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
				 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);

	if (result && result != -ENODEV)
		goto exit;

	if (!asus->driver->quirks->hotplug_wireless)
		goto exit;

	result = asus_setup_pci_hotplug(asus);
	/*
         * If we get -EBUSY then something else is handling the PCI hotplug -
         * don't fail in this case
         */
	if (result == -EBUSY)
		result = 0;

	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
	asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
	/*
         * Refresh pci hotplug in case the rfkill state was changed during
         * setup.
         */
	asus_rfkill_hotplug(asus);

exit:
	if (result && result != -ENODEV)
		asus_wmi_rfkill_exit(asus);

	if (result == -ENODEV)
		result = 0;

	return result;
}

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302
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10
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/*
 * Hwmon device
 */


static int asus_hwmon_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
					  int *speed)
{
	struct fan_args args = {
		.agfn.len = sizeof(args),
		.agfn.mfun = ASUS_FAN_MFUN,
		.agfn.sfun = ASUS_FAN_SFUN_READ,
		.fan = fan,
		.speed = 0,
        };
	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
	int status;

	if (fan != 1)
		return -EINVAL;

	status = asus_wmi_evaluate_method_agfn(input);

	if (status || args.agfn.err)
		return -ENXIO;

	if (speed)
		*speed = args.speed;

	return 0;
}

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kast bernd
107
86.99%
1
20.00%
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16
13.01%
4
80.00%
Total
123
100.00%
5
100.00%



static int asus_hwmon_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
				     int *speed)
{
	struct fan_args args = {
		.agfn.len = sizeof(args),
		.agfn.mfun = ASUS_FAN_MFUN,
		.agfn.sfun = ASUS_FAN_SFUN_WRITE,
		.fan = fan,
		.speed = speed ?  *speed : 0,
        };
	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
	int status;

	/* 1: for setting 1st fan's speed 0: setting auto mode */
	if (fan != 1 && fan != 0)
		return -EINVAL;

	status = asus_wmi_evaluate_method_agfn(input);

	if (status || args.agfn.err)
		return -ENXIO;

	if (speed && fan == 1)
		asus->asus_hwmon_pwm = *speed;

	return 0;
}

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kast bernd
kast bernd
137
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1
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137
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1
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/*
 * Check if we can read the speed of one fan. If true we assume we can also
 * control it.
 */


static int asus_hwmon_get_fan_number(struct asus_wmi *asus, int *num_fans)
{
	int status;
	int speed = 0;

	*num_fans = 0;

	status = asus_hwmon_agfn_fan_speed_read(asus, 1, &speed);
	if (!status)
		*num_fans = 1;

	return 0;
}

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kast bernd
kast bernd
53
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1
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53
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static int asus_hwmon_fan_set_auto(struct asus_wmi *asus)
{
	int status;

	status = asus_hwmon_agfn_fan_speed_write(asus, 0, NULL);
	if (status)
		return -ENXIO;

	asus->asus_hwmon_fan_manual_mode = false;

	return 0;
}

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kast bernd
kast bernd
42
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1
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42
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1
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static int asus_hwmon_fan_rpm_show(struct device *dev, int fan)
{
	struct asus_wmi *asus = dev_get_drvdata(dev);
	int value;
	int ret;

	/* no speed readable on manual mode */
	if (asus->asus_hwmon_fan_manual_mode)
		return -ENXIO;

	ret = asus_hwmon_agfn_fan_speed_read(asus, fan+1, &value);
	if (ret) {
		pr_warn("reading fan speed failed: %d\n", ret);
		return -ENXIO;
	}

	return value;
}

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kast bernd
kast bernd
75
100.00%
1
100.00%
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75
100.00%
1
100.00%



static void asus_hwmon_pwm_show(struct asus_wmi *asus, int fan, int *value)
{
	int err;

	if (asus->asus_hwmon_pwm >= 0) {
		*value = asus->asus_hwmon_pwm;
		return;
	}

	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, value);
	if (err < 0)
		return;

	*value &= 0xFF;

	if (*value == 1) /* Low Speed */
		*value = 85;
	else if (*value == 2)
		*value = 170;
	else if (*value == 3)
		*value = 255;
	else if (*value) {
		pr_err("Unknown fan speed %#x\n", *value);
		*value = -1;
	}
}

Contributors
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kast bernd
kast bernd
122
99.19%
1
50.00%
corentin chary
corentin chary
1
0.81%
1
50.00%
Total
123
100.00%
2
100.00%



static ssize_t pwm1_show(struct device *dev,
			       struct device_attribute *attr,
			       char *buf)
{
	struct asus_wmi *asus = dev_get_drvdata(dev);
	int value;

	asus_hwmon_pwm_show(asus, 0, &value);

	return sprintf(buf, "%d\n", value);
}

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kast bernd
kast bernd
53
100.00%
1
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53
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1
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static ssize_t pwm1_store(struct device *dev,
				     struct device_attribute *attr,
				     const char *buf, size_t count) {
	struct asus_wmi *asus = dev_get_drvdata(dev);
	int value;
	int state;
	int ret;

	ret = kstrtouint(buf, 10, &value);

	if (ret)
		return ret;

	value = clamp(value, 0, 255);

	state = asus_hwmon_agfn_fan_speed_write(asus, 1, &value);
	if (state)
		pr_warn("Setting fan speed failed: %d\n", state);
	else
		asus->asus_hwmon_fan_manual_mode = true;

	return count;
}

Contributors
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kast bernd
kast bernd
85
80.19%
1
33.33%
corentin chary
corentin chary
21
19.81%
2
66.67%
Total
106
100.00%
3
100.00%



static ssize_t fan1_input_show(struct device *dev,
					struct device_attribute *attr,
					char *buf)
{
	int value = asus_hwmon_fan_rpm_show(dev, 0);

	return sprintf(buf, "%d\n", value < 0 ? -1 : value*100);

}

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kast bernd
kast bernd
49
100.00%
1
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49
100.00%
1
100.00%



static ssize_t pwm1_enable_show(struct device *dev,
						 struct device_attribute *attr,
						 char *buf)
{
	struct asus_wmi *asus = dev_get_drvdata(dev);

	if (asus->asus_hwmon_fan_manual_mode)
		return sprintf(buf, "%d\n", ASUS_FAN_CTRL_MANUAL);

	return sprintf(buf, "%d\n", ASUS_FAN_CTRL_AUTO);
}

Contributors
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kast bernd
kast bernd
53
94.64%
1
50.00%
corentin chary
corentin chary
3
5.36%
1
50.00%
Total
56
100.00%
2
100.00%



static ssize_t pwm1_enable_store(struct device *dev,
						  struct device_attribute *attr,
						  const char *buf, size_t count)
{
	struct asus_wmi *asus = dev_get_drvdata(dev);
	int status = 0;
	int state;
	int ret;

	ret = kstrtouint(buf, 10, &state);

	if (ret)
		return ret;

	if (state == ASUS_FAN_CTRL_MANUAL)
		asus->asus_hwmon_fan_manual_mode = true;
	else
		status = asus_hwmon_fan_set_auto(asus);

	if (status)
		return status;

	return count;
}

Contributors
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kast bernd
kast bernd
82
87.23%
1
33.33%
corentin chary
corentin chary
12
12.77%
2
66.67%
Total
94
100.00%
3
100.00%



static ssize_t fan1_label_show(struct device *dev,
					  struct device_attribute *attr,
					  char *buf)
{
	return sprintf(buf, "%s\n", ASUS_FAN_DESC);
}

Contributors
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kast bernd
kast bernd
21
70.00%
1
33.33%
corentin chary
corentin chary
9
30.00%
2
66.67%
Total
30
100.00%
3
100.00%



static ssize_t asus_hwmon_temp1(struct device *dev,
				struct device_attribute *attr,
				char *buf)
{
	struct asus_wmi *asus = dev_get_drvdata(dev);
	u32 value;
	int err;

	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);

	if (err < 0)
		return err;

	value = DECI_KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;

	return sprintf(buf, "%d\n", value);
}

Contributors
Person
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corentin chary
corentin chary
79
98.75%
1
50.00%
rasmus villemoes
rasmus villemoes
1
1.25%
1
50.00%
Total
80
100.00%
2
100.00%

/* Fan1 */
static DEVICE_ATTR_RW(pwm1);
static DEVICE_ATTR_RW(pwm1_enable);
static DEVICE_ATTR_RO(fan1_input);
static DEVICE_ATTR_RO(fan1_label);

/* Temperature */
static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);


static struct attribute *hwmon_attributes[] = {
	&dev_attr_pwm1.attr,
	&dev_attr_pwm1_enable.attr,
	&dev_attr_fan1_input.attr,
	&dev_attr_fan1_label.attr,

	&dev_attr_temp1_input.attr,
	NULL
};



static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
					  struct attribute *attr, int idx)
{
	struct device *dev = container_of(kobj, struct device, kobj);
	struct platform_device *pdev = to_platform_device(dev->parent);
	struct asus_wmi *asus = platform_get_drvdata(pdev);
	int dev_id = -1;
	int fan_attr = -1;
	u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
	bool ok = true;

	if (attr == &dev_attr_pwm1.attr)
		dev_id = ASUS_WMI_DEVID_FAN_CTRL;
	else if (attr == &dev_attr_temp1_input.attr)
		dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;


	if (attr == &dev_attr_fan1_input.attr
	    || attr == &dev_attr_fan1_label.attr
	    || attr == &dev_attr_pwm1.attr
	    || attr == &dev_attr_pwm1_enable.attr) {
		fan_attr = 1;
	}

	if (dev_id != -1) {
		int err = asus_wmi_get_devstate(asus, dev_id, &value);

		if (err < 0 && fan_attr == -1)
			return 0; /* can't return negative here */
	}

	if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
		/*
                 * We need to find a better way, probably using sfun,
                 * bits or spec ...
                 * Currently we disable it if:
                 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
                 * - reverved bits are non-zero
                 * - sfun and presence bit are not set
                 */
		if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
		    || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
			ok = false;
		else
			ok = fan_attr <= asus->asus_hwmon_num_fans;
	} else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
		/* If value is zero, something is clearly wrong */
		if (!value)
			ok = false;
	} else if (fan_attr <= asus->asus_hwmon_num_fans && fan_attr != -1) {
		ok = true;
	} else {
		ok = false;
	}

	return ok ? attr->mode : 0;
}

Contributors
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corentin chary
corentin chary
182
65.23%
4
44.44%
kast bernd
kast bernd
88
31.54%
1
11.11%
yong wang
yong wang
4
1.43%
1
11.11%
al viro
al viro
3
1.08%
2
22.22%
guenter roeck
guenter roeck
2
0.72%
1
11.11%
Total
279
100.00%
9
100.00%


static struct attribute_group hwmon_attribute_group = {
	.is_visible = asus_hwmon_sysfs_is_visible,
	.attrs = hwmon_attributes
};

__ATTRIBUTE_GROUPS(hwmon_attribute);



static int asus_wmi_hwmon_init(struct asus_wmi *asus)
{
	struct device *hwmon;

	hwmon = hwmon_device_register_with_groups(&asus->platform_device->dev,
						  "asus", asus,
						  hwmon_attribute_groups);
	if (IS_ERR(hwmon)) {
		pr_err("Could not register asus hwmon device\n");
		return PTR_ERR(hwmon);
	}
	return 0;
}

Contributors
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corentin chary
corentin chary
49
85.96%
1
50.00%
guenter roeck
guenter roeck
8
14.04%
1
50.00%
Total
57
100.00%
2
100.00%

/*
 * Backlight
 */


static int read_backlight_power(struct asus_wmi *asus)
{
	int ret;
	if (asus->driver->quirks->store_backlight_power)
		ret = !asus->driver->panel_power;
	else
		ret = asus_wmi_get_devstate_simple(asus,
						   ASUS_WMI_DEVID_BACKLIGHT);

	if (ret < 0)
		return ret;

	return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
}

Contributors
Person
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CommitProp
corentin chary
corentin chary
35
59.32%
1
50.00%
acelan kao
acelan kao
24
40.68%
1
50.00%
Total
59
100.00%
2
100.00%



static int read_brightness_max(struct asus_wmi *asus)
{
	u32 retval;
	int err;

	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);

	if (err < 0)
		return err;

	retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
	retval >>= 8;

	if (!retval)
		return -ENODEV;

	return retval;
}

Contributors
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corentin chary
corentin chary
60
100.00%
1
100.00%
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60
100.00%
1
100.00%



static int read_brightness(struct backlight_device *bd)
{
	struct asus_wmi *asus = bl_get_data(bd);
	u32 retval;
	int err;

	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);

	if (err < 0)
		return err;

	return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
}

Contributors
Person
Tokens
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CommitProp
corentin chary
corentin chary
51
96.23%
1
50.00%
dan carpenter
dan carpenter
2
3.77%
1
50.00%
Total
53
100.00%
2
100.00%



static u32 get_scalar_command(struct backlight_device *bd)
{
	struct asus_wmi *asus = bl_get_data(bd);
	u32 ctrl_param = 0;

	if ((asus->driver->brightness < bd->props.brightness) ||
	    bd->props.brightness == bd->props.max_brightness)
		ctrl_param = 0x00008001;
	else if ((asus->driver->brightness > bd->props.brightness) ||
		 bd->props.brightness == 0)
		ctrl_param = 0x00008000;

	asus->driver->brightness = bd->props.brightness;

	return ctrl_param;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
acelan kao
acelan kao
68
66.67%
1
16.67%
corentin chary
corentin chary
26
25.49%
4
66.67%
yong wang
yong wang
8
7.84%
1
16.67%
Total
102
100.00%
6
100.00%



static int update_bl_status(struct backlight_device *bd)
{
	struct asus_wmi *asus = bl_get_data(bd);
	u32 ctrl_param;
	int power, err = 0;

	power = read_backlight_power(asus);
	if (power != -ENODEV && bd->props.power != power) {
		ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
					    ctrl_param, NULL);
		if (asus->driver->quirks->store_backlight_power)
			asus->driver->panel_power = bd->props.power;

		/* When using scalar brightness, updating the brightness
                 * will mess with the backlight power */
		if (asus->driver->quirks->scalar_panel_brightness)
			return err;
	}

	if (asus->driver->quirks->scalar_panel_brightness)
		ctrl_param = get_scalar_command(bd);
	else
		ctrl_param = bd->props.brightness;

	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
				    ctrl_param, NULL);

	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
corentin chary
corentin chary
85
54.49%
8
80.00%
acelan kao
acelan kao
61
39.10%
1
10.00%
yong wang
yong wang
10
6.41%
1
10.00%
Total
156
100.00%
10
100.00%


static const struct backlight_ops asus_wmi_bl_ops = {
	.get_brightness = read_brightness,
	.update_status = update_bl_status,
};



static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
{
	struct backlight_device *bd = asus->backlight_device;
	int old = bd->props.brightness;
	int new = old;

	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
		new = code - NOTIFY_BRNUP_MIN + 1;
	else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
		new = code - NOTIFY_BRNDOWN_MIN;

	bd->props.brightness = new;
	backlight_update_status(bd);
	backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);

	return old;
}

Contributors
Person
Tokens
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Commits
CommitProp
yong wang
yong wang
89
93.68%
1
33.33%
corentin chary
corentin chary
4
4.21%
1
33.33%
daniel mack
daniel mack
2
2.11%
1
33.33%
Total
95
100.00%
3
100.00%



static int asus_wmi_backlight_init(struct asus_wmi *asus)
{
	struct backlight_device *bd;
	struct backlight_properties props;
	int max;
	int power;

	max = read_brightness_max(asus);
	if (max < 0)
		return max;

	power = read_backlight_power(asus);

	if (power == -ENODEV)
		power = FB_BLANK_UNBLANK;
	else if (power < 0)
		return power;

	memset(&props, 0, sizeof(struct backlight_properties));
	props.type = BACKLIGHT_PLATFORM;
	props.max_brightness = max;
	bd = backlight_device_register(asus->driver->name,
				       &asus->platform_device->dev, asus,
				       &asus_wmi_bl_ops, &props);
	if (IS_ERR(bd)) {
		pr_err("Could not register backlight device\n");
		return PTR_ERR(bd);
	}

	asus->backlight_device = bd;

	if (asus->driver->quirks->store_backlight_power)
		asus->driver->panel_power = power;

	bd->props.brightness = read_brightness(bd);
	bd->props.power = power;
	backlight_update_status(bd);

	asus->driver->brightness = bd->props.brightness;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
yong wang
yong wang
104
50.73%
1
11.11%
corentin chary
corentin chary
65
31.71%
5
55.56%
acelan kao
acelan kao
30
14.63%
2
22.22%
axel lin
axel lin
6
2.93%
1
11.11%
Total
205
100.00%
9
100.00%



static void asus_wmi_backlight_exit(struct asus_wmi *asus)
{
	backlight_device_unregister(asus->backlight_device);

	asus->backlight_device = NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
yong wang
yong wang
19
79.17%
1
50.00%
corentin chary
corentin chary
5
20.83%
1
50.00%
Total
24
100.00%
2
100.00%



static int is_display_toggle(int code)
{
	/* display toggle keys */
	if ((code >= 0x61 && code <= 0x67) ||
	    (code >= 0x8c && code <= 0x93) ||
	    (code >= 0xa0 && code <= 0xa7) ||
	    (code >= 0xd0 && code <= 0xd5))
		return 1;

	return 0;
}

Contributors
Person
Tokens
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CommitProp
acelan kao
acelan kao
58
100.00%
1
100.00%
Total
58
100.00%
1
100.00%



static void asus_wmi_notify(u32 value, void *context)
{
	struct asus_wmi *asus = context;
	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
	union acpi_object *obj;
	acpi_status status;
	int code;
	int orig_code;
	unsigned int key_value = 1;
	bool autorelease = 1;

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

	obj = (union acpi_object *)response.pointer;

	if (!obj || obj->type != ACPI_TYPE_INTEGER)
		goto exit;

	code = obj->integer.value;
	orig_code = code;

	if (asus->driver->key_filter) {
		asus->driver->key_filter(asus->driver, &code, &key_value,
					 &autorelease);
		if (code == ASUS_WMI_KEY_IGNORE)
			goto exit;
	}

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

	if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
		if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
			asus_wmi_backlight_notify(asus, orig_code);
			goto exit;
		}
	}

	if (is_display_toggle(code) &&
	    asus->driver->quirks->no_display_toggle)
		goto exit;

	if (!sparse_keymap_report_event(asus->inputdev, code,
					key_value, autorelease))
		pr_info("Unknown key %x pressed\n", code);

exit:
	kfree(obj);
}

Contributors
Person
Tokens
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Commits
CommitProp
yong wang
yong wang
168
63.40%
1
14.29%
seth forshee
seth forshee
52
19.62%
1
14.29%
acelan kao
acelan kao
23
8.68%
1
14.29%
corentin chary
corentin chary
19
7.17%
3
42.86%
hans de goede
hans de goede
3
1.13%
1
14.29%
Total
265
100.00%
7
100.00%

/*
 * Sys helpers
 */


static int parse_arg(const char *buf, unsigned long count, int *val)
{
	if (!count)
		return 0;
	if (sscanf(buf, "%i", val) != 1)
		return -EINVAL;
	return count;
}

Contributors
Person
Tokens
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CommitProp
corentin chary
corentin chary
47
100.00%
1
100.00%
Total
47
100.00%
1
100.00%



static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
			     const char *buf, size_t count)
{
	u32 retval;
	int rv, err, value;

	value = asus_wmi_get_devstate_simple(asus, devid);
	if (value < 0)
		return value;

	rv = parse_arg(buf, count, &value);
	err = asus_wmi_set_devstate(devid, value, &retval);

	if (err < 0)
		return err;

	return rv;
}

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corentin chary
corentin chary
84
97.67%
4
80.00%
dan carpenter
dan carpenter
2
2.33%
1
20.00%
Total
86
100.00%
5
100.00%



static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
{
	int value = asus_wmi_get_devstate_simple(asus, devid);

	if (value < 0)
		return value;

	return sprintf(buf, "%d\n", value);
}

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corentin chary
47
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3
100.00%
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47
100.00%
3
100.00%


#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)			\
	static ssize_t show_##_name(struct device *dev,                 \
                                    struct device_attribute *attr,      \
                                    char *buf)                          \
        {                                                               \
                struct asus_wmi *asus = dev_get_drvdata(dev);           \
                                                                        \
                return show_sys_wmi(asus, _cm, buf);                    \
        }                                                               \
        static ssize_t store_##_name(struct device *dev,                \
                                     struct device_attribute *attr,     \
                                     const char *buf, size_t count)     \
        {                                                               \
                struct asus_wmi *asus = dev_get_drvdata(dev);           \
                                                                        \
                return store_sys_wmi(asus, _cm, buf, count);            \
        }                                                               \
        static struct device_attribute dev_attr_##_name = {             \
                .attr = {                                               \
                        .name = __stringify(_name),                     \
                        .mode = _mode },                                \
                .show   = show_##_name,                                 \
                .store  = store_##_name,                                \
        }

ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);



static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
			   const char *buf, size_t count)
{
	int value, rv;

	if (!count || sscanf(buf, "%i", &value) != 1)
		return -EINVAL;
	if (value < 0 || value > 2)
		return -EINVAL;

	rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
	if (rv < 0)
		return rv;

	return count;
}

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chris bagwell
chris bagwell
67
75.28%
1
20.00%
corentin chary
corentin chary
21
23.60%
3
60.00%
dmitry torokhov
dmitry torokhov
1
1.12%
1
20.00%
Total
89
100.00%
5
100.00%

static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);


static struct attribute *platform_attributes[] = {
	&dev_attr_cpufv.attr,
	&dev_attr_camera.attr,
	&dev_attr_cardr.attr,
	&dev_attr_touchpad.attr,
	&dev_attr_lid_resume.attr,
	&dev_attr_als_enable.attr,
	NULL
};



static umode_t asus_sysfs_is_visible(struct kobject *kobj,
				    struct attribute *attr, int idx)
{
	struct device *dev = container_of(kobj, struct device, kobj);
	struct platform_device *pdev = to_platform_device(dev);
	struct asus_wmi *asus = platform_get_drvdata(pdev);
	bool ok = true;
	int devid = -1;

	if (attr == &dev_attr_camera.attr)
		devid = ASUS_WMI_DEVID_CAMERA;
	else if (attr == &dev_attr_cardr.attr)
		devid = ASUS_WMI_DEVID_CARDREADER;
	else if (attr == &dev_attr_touchpad.attr)
		devid = ASUS_WMI_DEVID_TOUCHPAD;
	else if (attr == &dev_attr_lid_resume.attr)
		devid = ASUS_WMI_DEVID_LID_RESUME;
	else if (attr == &dev_attr_als_enable.attr)
		devid = ASUS_WMI_DEVID_ALS_ENABLE;

	if (devid != -1)
		ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);

	return ok ? attr->mode : 0;
}

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corentin chary
corentin chary
135
82.32%
4
57.14%
oleksij rempel
oleksij rempel
14
8.54%
1
14.29%
acelan kao
acelan kao
14
8.54%
1
14.29%
al viro
al viro
1
0.61%
1
14.29%
Total
164
100.00%
7
100.00%


static struct attribute_group platform_attribute_group = {
	.is_visible = asus_sysfs_is_visible,
	.attrs = platform_attributes
};



static void asus_wmi_sysfs_exit(struct platform_device *device)
{
	sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
}

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chris bagwell
chris bagwell
19
79.17%
1
33.33%
corentin chary
corentin chary
5
20.83%
2
66.67%
Total
24
100.00%
3
100.00%



static int asus_wmi_sysfs_init(struct platform_device *device)
{
	return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
}

Contributors
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chris bagwell
chris bagwell
19
76.00%
1
33.33%
corentin chary
corentin chary
6
24.00%
2
66.67%
Total
25
100.00%
3
100.00%

/*
 * Platform device
 */


static int asus_wmi_platform_init(struct asus_wmi *asus)
{
	int rv;

	/* INIT enable hotkeys on some models */
	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
		pr_info("Initialization: %#x\n", rv);

	/* We don't know yet what to do with this version... */
	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
		pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
		asus->spec = rv;
	}

	/*
         * The SFUN method probably allows the original driver to get the list
         * of features supported by a given model. For now, 0x0100 or 0x0800
         * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
         * The significance of others is yet to be found.
         */
	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
		pr_info("SFUN value: %#x\n", rv);
		asus->sfun = rv;
	}

	/*
         * Eee PC and Notebooks seems to have different method_id for DSTS,
         * but it may also be related to the BIOS's SPEC.
         * Note, on most Eeepc, there is no way to check if a method exist
         * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
         * but once again, SPEC may probably be used for that kind of things.
         */
	if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
		asus->dsts_id = ASUS_WMI_METHODID_DSTS;
	else
		asus->dsts_id = ASUS_WMI_METHODID_DSTS2;

	/* CWAP allow to define the behavior of the Fn+F2 key,
         * this method doesn't seems to be present on Eee PCs */
	if (asus->driver->quirks->wapf >= 0)
		asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
				      asus->driver->quirks->wapf, NULL);

	return asus_wmi_sysfs_init(asus->platform_device);
}

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corentin chary
corentin chary
163
96.45%
7
70.00%
viktar vauchkevich
viktar vauchkevich
3
1.78%
1
10.00%
yong wang
yong wang
2
1.18%
1
10.00%
alex hung
alex hung
1
0.59%
1
10.00%
Total
169
100.00%
10
100.00%



static void asus_wmi_platform_exit(struct asus_wmi *asus)
{
	asus_wmi_sysfs_exit(asus->platform_device);
}

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corentin chary
corentin chary
16
88.89%
2
66.67%
yong wang
yong wang
2
11.11%
1
33.33%
Total
18
100.00%
3
100.00%

/*
 * debugfs
 */

struct asus_wmi_debugfs_node {
	
struct asus_wmi *asus;
	
char *name;
	
int (*show) (struct seq_file *m, void *data);
};



static int show_dsts(struct seq_file *m, void *data)
{
	struct asus_wmi *asus = m->private;
	int err;
	u32 retval = -1;

	err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);

	if (err < 0)
		return err;

	seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);

	return 0;
}

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corentin chary
corentin chary
66
86.84%
6
75.00%
yong wang
yong wang
10
13.16%
2
25.00%
Total
76
100.00%
8
100.00%



static int show_devs(struct seq_file *m, void *data)
{
	struct asus_wmi *asus = m->private;
	int err;
	u32 retval = -1;

	err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
				    &retval);

	if (err < 0)
		return err;

	seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
		   asus->debug.ctrl_param, retval);

	return 0;
}

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corentin chary
corentin chary
86
100.00%
4
100.00%
Total
86
100.00%
4
100.00%



static int show_call(struct seq_file *m, void *data)
{
	struct asus_wmi *asus = m->private;
	struct bios_args args = {
		.arg0 = asus->debug.dev_id,
		.arg1 = asus->debug.ctrl_param,
        };
	struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
	union acpi_object *obj;
	acpi_status status;

	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
				     1, asus->debug.method_id,
				     &input, &output);

	if (ACPI_FAILURE(status))
		return -EIO;

	obj = (union acpi_object *)output.pointer;
	if (obj && obj->type == ACPI_TYPE_INTEGER)
		seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
			   asus->debug.dev_id, asus->debug.ctrl_param,
			   (u32) obj->integer.value);
	else
		seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
			   asus->debug.dev_id, asus->debug.ctrl_param,
			   obj ? obj->type : -1);

	kfree(obj);

	return 0;
}

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corentin chary
corentin chary
208
97.65%
1
50.00%
dan carpenter
dan carpenter
5
2.35%
1
50.00%
Total
213
100.00%
2
100.00%


static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
	{NULL, "devs", show_devs},
	{NULL, "dsts", show_dsts},
	{NULL, "call", show_call},
};



static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
{
	struct asus_wmi_debugfs_node *node = inode->i_private;

	return single_open(file, node->show, node->asus);
}

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corentin chary
corentin chary
39
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2
100.00%
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39
100.00%
2
100.00%


static const struct file_operations asus_wmi_debugfs_io_ops = {
	.owner = THIS_MODULE,
	.open = asus_wmi_debugfs_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};



static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
{
	debugfs_remove_recursive(asus->debug.root);
}

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20
100.00%
2
100.00%



static int asus_wmi_debugfs_init(struct asus_wmi *asus)
{
	struct dentry *dent;
	int i;

	asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
	if (!asus->debug.root) {
		pr_err("failed to create debugfs directory\n");
		goto error_debugfs;
	}

	dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
				  asus->debug.root, &asus->debug.method_id);
	if (!dent)
		goto error_debugfs;

	dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
				  asus->debug.root, &asus->debug.dev_id);
	if (!dent)
		goto error_debugfs;

	dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
				  asus->debug.root, &asus->debug.ctrl_param);
	if (!dent)
		goto error_debugfs;

	for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
		struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];

		node->asus = asus;
		dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
					   asus->debug.root, node,
					   &asus_wmi_debugfs_io_ops);
		if (!dent) {
			pr_err("failed to create debug file: %s\n", node->name);
			goto error_debugfs;
		}
	}

	return 0;

error_debugfs:
	asus_wmi_debugfs_exit(asus);
	return -ENOMEM;
}

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corentin chary
corentin chary
242
99.59%
3
75.00%
viktar vauchkevich
viktar vauchkevich
1
0.41%
1
25.00%
Total
243
100.00%
4
100.00%



static int asus_wmi_fan_init(struct asus_wmi *asus)
{
	int status;

	asus->asus_hwmon_pwm = -1;
	asus->asus_hwmon_num_fans = -1;
	asus->asus_hwmon_fan_manual_mode = false;

	status = asus_hwmon_get_fan_number(asus, &asus->asus_hwmon_num_fans);
	if (status) {
		asus->asus_hwmon_num_fans = 0;
		pr_warn("Could not determine number of fans: %d\n", status);
		return -ENXIO;
	}

	pr_info("Number of fans: %d\n", asus->asus_hwmon_num_fans);
	return 0;
}

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kast bernd
kast bernd
81
100.00%
1
100.00%
Total
81
100.00%
1
100.00%

/*
 * WMI Driver
 */


static int asus_wmi_add(struct platform_device *pdev)
{
	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
	struct asus_wmi *asus;
	const char *chassis_type;
	acpi_status status;
	int err;
	u32 result;

	asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
	if (!asus)
		return -ENOMEM;

	asus->driver = wdrv;
	asus->platform_device = pdev;
	wdrv->platform_device = pdev;
	platform_set_drvdata(asus->platform_device, asus);

	if (wdrv->detect_quirks)
		wdrv->detect_quirks(asus->driver);

	err = asus_wmi_platform_init(asus);
	if (err)
		goto fail_platform;

	err = asus_wmi_input_init(asus);
	if (err)
		goto fail_input;

	err = asus_wmi_fan_init(asus); /* probably no problems on error */
	asus_hwmon_fan_set_auto(asus);

	err = asus_wmi_hwmon_init(asus);
	if (err)
		goto fail_hwmon;

	err = asus_wmi_led_init(asus);
	if (err)
		goto fail_leds;

	if (!asus->driver->quirks->no_rfkill) {
		err = asus_wmi_rfkill_init(asus);
		if (err)
			goto fail_rfkill;
	}

	/* Some Asus desktop boards export an acpi-video backlight interface,
           stop this from showing up */
	chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
	if (chassis_type && !strcmp(chassis_type, "3"))
		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);

	if (asus->driver->quirks->wmi_backlight_power)
		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);

	if (asus->driver->quirks->wmi_backlight_native)
		acpi_video_set_dmi_backlight_type(acpi_backlight_native);

	if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
		err = asus_wmi_backlight_init(asus);
		if (err && err != -ENODEV)
			goto fail_backlight;
	}

	status = wmi_install_notify_handler(asus->driver->event_guid,
					    asus_wmi_notify, asus);
	if (ACPI_FAILURE(status)) {
		pr_err("Unable to register notify handler - %d\n", status);
		err = -ENODEV;
		goto fail_wmi_handler;
	}

	err = asus_wmi_debugfs_init(asus);
	if (err)
		goto fail_debugfs;

	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
	if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
		asus->driver->wlan_ctrl_by_user = 1;

	return 0;

fail_debugfs:
	wmi_remove_notify_handler(asus->driver->event_guid);
fail_wmi_handler:
	asus_wmi_backlight_exit(asus);
fail_backlight:
	asus_wmi_rfkill_exit(asus);
fail_rfkill:
	asus_wmi_led_exit(asus);
fail_leds:
fail_hwmon:
	asus_wmi_input_exit(asus);
fail_input:
	asus_wmi_platform_exit(asus);
fail_platform:
	kfree(asus);
	return err;
}

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corentin chary
corentin chary
253
57.63%
9
47.37%
yong wang
yong wang
64
14.58%
2
10.53%
acelan kao
acelan kao
44
10.02%
3
15.79%
hans de goede
hans de goede
37
8.43%
2
10.53%
zino lin
zino lin
15
3.42%
1
5.26%
kast bernd
kast bernd
13
2.96%
1
5.26%
joao paulo rechi vita
joao paulo rechi vita
13
2.96%
1
5.26%
Total
439
100.00%
19
100.00%



static int asus_wmi_remove(struct platform_device *device)
{
	struct asus_wmi *asus;

	asus = platform_get_drvdata(device);
	wmi_remove_notify_handler(asus->driver->event_guid);
	asus_wmi_backlight_exit(asus);
	asus_wmi_input_exit(asus);
	asus_wmi_led_exit(asus);
	asus_wmi_rfkill_exit(asus);
	asus_wmi_debugfs_exit(asus);
	asus_wmi_platform_exit(asus);
	asus_hwmon_fan_set_auto(asus);

	kfree(asus);
	return 0;
}

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corentin chary
corentin chary
38
50.67%
5
62.50%
yong wang
yong wang
32
42.67%
2
25.00%
kast bernd
kast bernd
5
6.67%
1
12.50%
Total
75
100.00%
8
100.00%

/*
 * Platform driver - hibernate/resume callbacks
 */


static int asus_hotk_thaw(struct device *device)
{
	struct asus_wmi *asus = dev_get_drvdata(device);

	if (asus->wlan.rfkill) {
		bool wlan;

		/*
                 * Work around bios bug - acpi _PTS turns off the wireless led
                 * during suspend.  Normally it restores it on resume, but
                 * we should kick it ourselves in case hibernation is aborted.
                 */
		wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
		asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
	}

	return 0;
}

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corentin chary
corentin chary
56
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4
100.00%
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56
100.00%
4
100.00%



static int asus_hotk_resume(struct device *device)
{
	struct asus_wmi *asus = dev_get_drvdata(device);

	if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
		queue_work(asus->led_workqueue, &asus->kbd_led_work);

	return 0;
}

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oleksij rempel
oleksij rempel
48
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1
100.00%
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48
100.00%
1
100.00%



static int asus_hotk_restore(struct device *device)
{
	struct asus_wmi *asus = dev_get_drvdata(device);
	int bl;

	/* Refresh both wlan rfkill state and pci hotplug */
	if (asus->wlan.rfkill)
		asus_rfkill_hotplug(asus);

	if (asus->bluetooth.rfkill) {
		bl = !asus_wmi_get_devstate_simple(asus,
						   ASUS_WMI_DEVID_BLUETOOTH);
		rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
	}
	if (asus->wimax.rfkill) {
		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
		rfkill_set_sw_state(asus->wimax.rfkill, bl);
	}
	if (asus->wwan3g.rfkill) {
		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
		rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
	}
	if (asus->gps.rfkill) {
		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
		rfkill_set_sw_state(asus->gps.rfkill, bl);
	}
	if (asus->uwb.rfkill) {
		bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
		rfkill_set_sw_state(asus->uwb.rfkill, bl);
	}
	if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
		queue_work(asus->led_workqueue, &asus->kbd_led_work);

	return 0;
}

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corentin chary
corentin chary
196
89.09%
7
87.50%
oleksij rempel
oleksij rempel
24
10.91%
1
12.50%
Total
220
100.00%
8
100.00%


static const struct dev_pm_ops asus_pm_ops = {
	.thaw = asus_hotk_thaw,
	.restore = asus_hotk_restore,
	.resume = asus_hotk_resume,
};



static int asus_wmi_probe(struct platform_device *pdev)
{
	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
	int ret;

	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
		pr_warn("Management GUID not found\n");
		return -ENODEV;
	}

	if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
		pr_warn("Event GUID not found\n");
		return -ENODEV;
	}

	if (wdrv->probe) {
		ret = wdrv->probe(pdev);
		if (ret)
			return ret;
	}

	return asus_wmi_add(pdev);
}

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corentin chary
corentin chary
88
78.57%
4
50.00%
yong wang
yong wang
22
19.64%
3
37.50%
joe perches
joe perches
2
1.79%
1
12.50%
Total
112
100.00%
8
100.00%


static bool used;



int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
{
	struct platform_driver *platform_driver;
	struct platform_device *platform_device;

	if (used)
		return -EBUSY;

	platform_driver = &driver->platform_driver;
	platform_driver->remove = asus_wmi_remove;
	platform_driver->driver.owner = driver->owner;
	platform_driver->driver.name = driver->name;
	platform_driver->driver.pm = &asus_pm_ops;

	platform_device = platform_create_bundle(platform_driver,
						 asus_wmi_probe,
						 NULL, 0, NULL, 0);
	if (IS_ERR(platform_device))
		return PTR_ERR(platform_device);

	used = true;
	return 0;
}
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corentin chary
corentin chary
90
83.33%
3
50.00%
yong wang
yong wang
18
16.67%
3
50.00%
Total
108
100.00%
6
100.00%


EXPORT_SYMBOL_GPL(asus_wmi_register_driver);



void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
{
	platform_device_unregister(driver->platform_device);
	platform_driver_unregister(&driver->platform_driver);
	used = false;
}
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corentin chary
corentin chary
15
51.72%
2
50.00%
yong wang
yong wang
14
48.28%
2
50.00%
Total
29
100.00%
4
100.00%


EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);



static int __init asus_wmi_init(void)
{
	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
		pr_info("Asus Management GUID not found\n");
		return -ENODEV;
	}

	pr_info("ASUS WMI generic driver loaded\n");
	return 0;
}

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corentin chary
corentin chary
34
94.44%
1
50.00%
viktar vauchkevich
viktar vauchkevich
2
5.56%
1
50.00%
Total
36
100.00%
2
100.00%



static void __exit asus_wmi_exit(void)
{
	pr_info("ASUS WMI generic driver unloaded\n");
}

Contributors
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corentin chary
corentin chary
12
85.71%
1
33.33%
yong wang
yong wang
1
7.14%
1
33.33%
viktar vauchkevich
viktar vauchkevich
1
7.14%
1
33.33%
Total
14
100.00%
3
100.00%


module_init(asus_wmi_init);

module_exit(asus_wmi_exit);
Overall Contributors
Person
Tokens
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Commits
CommitProp
corentin chary
corentin chary
6129
63.56%
49
53.85%
kast bernd
kast bernd
1326
13.75%
1
1.10%
yong wang
yong wang
969
10.05%
4
4.40%
acelan kao
acelan kao
753
7.81%
9
9.89%
oleksij rempel
oleksij rempel
124
1.29%
2
2.20%
chris bagwell
chris bagwell
119
1.23%
1
1.10%
seth forshee
seth forshee
63
0.65%
2
2.20%
hans de goede
hans de goede
43
0.45%
2
2.20%
axel lin
axel lin
30
0.31%
2
2.20%
zino lin
zino lin
15
0.16%
1
1.10%
guenter roeck
guenter roeck
15
0.16%
1
1.10%
joao paulo rechi vita
joao paulo rechi vita
13
0.13%
1
1.10%
dan carpenter
dan carpenter
9
0.09%
3
3.30%
viktar vauchkevich
viktar vauchkevich
7
0.07%
1
1.10%
joe perches
joe perches
6
0.06%
1
1.10%
rafael j. wysocki
rafael j. wysocki
6
0.06%
1
1.10%
al viro
al viro
4
0.04%
2
2.20%
tejun heo
tejun heo
3
0.03%
1
1.10%
daniel mack
daniel mack
2
0.02%
1
1.10%
rickard strandqvist
rickard strandqvist
2
0.02%
1
1.10%
yinghai lu
yinghai lu
1
0.01%
1
1.10%
rasmus villemoes
rasmus villemoes
1
0.01%
1
1.10%
alex hung
alex hung
1
0.01%
1
1.10%
dmitry torokhov
dmitry torokhov
1
0.01%
1
1.10%
lv zheng
lv zheng
1
0.01%
1
1.10%
Total
9643
100.00%
91
100.00%
  
Directory: drivers/platform/x86