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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: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Azael Avalos 2015-02-10 21:09:17 -07:00 committed by Darren Hart
parent c6c68ff812
commit 94477d4cfe
1 changed files with 50 additions and 1 deletions
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51
drivers/platform/x86/toshiba_acpi.c
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@ -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;