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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
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+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);