Commit 722ad971 authored by Corentin Chary's avatar Corentin Chary Committed by Len Brown
Browse files

asus-laptop: add ledd support 



Ledd is a special led ... /sys/.../asus-laptop/ledd works like
/proc/acpi/asus/ledd

Signed-off-by: default avatarCorentin Chary <corentincj@iksaif.net>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 78127b4a

drivers/misc/asus-laptop.c

+38 −0
Original line number Diff line number Diff line
@@ -104,6 +104,9 @@ ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED"); 
ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */

ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */



/* LEDD */

ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM");



/* Bluetooth and WLAN

 * WLED and BLED are not handled like other XLED, because in some dsdt

 * they also control the WLAN/Bluetooth device.
@@ -151,6 +154,7 @@ struct asus_hotk { 
	struct acpi_device *device;	//the device we are in

	acpi_handle handle;	//the handle of the hotk device

	char status;		//status of the hotk, for LEDs, ...

	u32 ledd_status;	//status of the LED display

	u16 event_count[128];	//count for each event TODO make this better

};
@@ -478,6 +482,30 @@ static ssize_t store_status(const char *buf, size_t count, 
	return rv;

}



/*

 * LEDD display

 */

static ssize_t show_ledd(struct device *dev,

			 struct device_attribute *attr, char *buf)

{

	return sprintf(buf, "0x%08x\n", hotk->ledd_status);

}



static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,

			  const char *buf, size_t count)

{

	int rv, value;



	rv = parse_arg(buf, count, &value);

	if (rv > 0) {

		if (!write_acpi_int(ledd_set_handle, NULL, value, NULL))

			printk(ASUS_WARNING "LED display write failed\n");

		else

			hotk->ledd_status = (u32) value;

	}

	return rv;

}



/*

 * WLAN

 */
@@ -607,12 +635,14 @@ static ASUS_CREATE_DEVICE_ATTR(infos); 
static ASUS_CREATE_DEVICE_ATTR(wlan);

static ASUS_CREATE_DEVICE_ATTR(bluetooth);

static ASUS_CREATE_DEVICE_ATTR(display);

static ASUS_CREATE_DEVICE_ATTR(ledd);



static struct attribute *asuspf_attributes[] = {

        &dev_attr_infos.attr,

        &dev_attr_wlan.attr,

        &dev_attr_bluetooth.attr,

        &dev_attr_display.attr,

        &dev_attr_ledd.attr,

        NULL

};
@@ -646,6 +676,9 @@ static void asus_hotk_add_fs(void) 
	else if(display_set_handle)

		ASUS_SET_DEVICE_ATTR(display, 0200, NULL, store_disp);



	if (ledd_set_handle)

		ASUS_SET_DEVICE_ATTR(ledd, 0644, show_ledd, store_ledd);



}



static int asus_handle_init(char *name, acpi_handle *handle,
@@ -741,6 +774,8 @@ static int asus_hotk_get_info(void) 
	ASUS_HANDLE_INIT(rled_set);

	ASUS_HANDLE_INIT(pled_set);



	ASUS_HANDLE_INIT(ledd_set);



	/*

	 * The HWRS method return informations about the hardware.

	 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
@@ -836,6 +871,9 @@ static int asus_hotk_add(struct acpi_device *device) 
	/* LCD Backlight is on by default */

	write_status(NULL, 1, LCD_ON, 0);



	/* LED display is off by default */

	hotk->ledd_status = 0xFFF;



      end:

	if (result) {

		kfree(hotk->name);