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Commit 94477d4c authored by Azael Avalos's avatar Azael Avalos Committed by Darren Hart
Browse files

toshiba_acpi: Add fan entry to sysfs 



This patch adds a fan entry to sysfs, enabling the user to get and
set the fan status.

Signed-off-by: default avatarAzael Avalos <coproscefalo@gmail.com>
Signed-off-by: default avatarDarren Hart <dvhart@linux.intel.com>
parent c6c68ff8

drivers/platform/x86/toshiba_acpi.c

+50 −1
Original line number Diff line number Diff line
@@ -1533,6 +1533,11 @@ static const struct backlight_ops toshiba_backlight_data = { 
 */

static ssize_t toshiba_version_show(struct device *dev,

				    struct device_attribute *attr, char *buf);

static ssize_t toshiba_fan_store(struct device *dev,

				 struct device_attribute *attr,

				 const char *buf, size_t count);

static ssize_t toshiba_fan_show(struct device *dev,

				struct device_attribute *attr, char *buf);

static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,

					 struct device_attribute *attr,

					 const char *buf, size_t count);
@@ -1586,6 +1591,8 @@ static ssize_t toshiba_usb_sleep_music_store(struct device *dev, 
					     const char *buf, size_t count);



static DEVICE_ATTR(version, S_IRUGO, toshiba_version_show, NULL);

static DEVICE_ATTR(fan, S_IRUGO | S_IWUSR,

		   toshiba_fan_show, toshiba_fan_store);

static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,

		   toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);

static DEVICE_ATTR(kbd_type, S_IRUGO, toshiba_kbd_type_show, NULL);
@@ -1611,6 +1618,7 @@ static DEVICE_ATTR(usb_sleep_music, S_IRUGO | S_IWUSR, 


static struct attribute *toshiba_attributes[] = {

	&dev_attr_version.attr,

	&dev_attr_fan.attr,

	&dev_attr_kbd_backlight_mode.attr,

	&dev_attr_kbd_type.attr,

	&dev_attr_available_kbd_modes.attr,
@@ -1638,6 +1646,45 @@ static ssize_t toshiba_version_show(struct device *dev, 
	return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);

}



static ssize_t toshiba_fan_store(struct device *dev,

				 struct device_attribute *attr,

				 const char *buf, size_t count)

{

	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);

	u32 result;

	int state;

	int ret;



	ret = kstrtoint(buf, 0, &state);

	if (ret)

		return ret;



	if (state != 0 && state != 1)

		return -EINVAL;



	result = hci_write1(toshiba, HCI_FAN, state);

	if (result == TOS_FAILURE)

		return -EIO;

	else if (result == TOS_NOT_SUPPORTED)

		return -ENODEV;



	return count;

}



static ssize_t toshiba_fan_show(struct device *dev,

				struct device_attribute *attr, char *buf)

{

	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);

	u32 value;

	int ret;



	ret = get_fan_status(toshiba, &value);

	if (ret)

		return ret;



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

}



static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,

					 struct device_attribute *attr,

					 const char *buf, size_t count)
@@ -2034,7 +2081,9 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, 
	struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);

	bool exists = true;



	if (attr == &dev_attr_kbd_backlight_mode.attr)

	if (attr == &dev_attr_fan.attr)

		exists = (drv->fan_supported) ? true : false;

	else if (attr == &dev_attr_kbd_backlight_mode.attr)

		exists = (drv->kbd_illum_supported) ? true : false;

	else if (attr == &dev_attr_kbd_backlight_timeout.attr)

		exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;