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authorAzael Avalos <coproscefalo@gmail.com>2015-02-10 21:09:19 -0700
committerDarren Hart <dvhart@linux.intel.com>2015-02-11 20:40:48 -0800
commit35d53ceaf7160fa1950142757420ba96921034bf (patch)
treeb01bb49e6782bb270f7cb92c70dc290f527c1697
parentbae84195b4cd44767fd127bcd4e61830e426bc7f (diff)
downloadop-kernel-dev-35d53ceaf7160fa1950142757420ba96921034bf.zip
op-kernel-dev-35d53ceaf7160fa1950142757420ba96921034bf.tar.gz
toshiba_acpi: Add support for Panel Power ON
Toshiba laptops come with a feature called "Panel Open - Power ON", which makes the laptop turn on whenever the LID is opened. This patch adds support for such feature, by creating a sysfs entry named "panel_power_on", accepting only two values, 0 to disable and 1 to enable such feature, however, a reboot is needed on every mode change. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
-rw-r--r--drivers/platform/x86/toshiba_acpi.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index ccf6282..70370d3 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -122,6 +122,7 @@ MODULE_LICENSE("GPL");
#define HCI_KBD_ILLUMINATION 0x0095
#define HCI_ECO_MODE 0x0097
#define HCI_ACCELEROMETER2 0x00a6
+#define SCI_PANEL_POWER_ON 0x010d
#define SCI_ILLUMINATION 0x014e
#define SCI_USB_SLEEP_CHARGE 0x0150
#define SCI_KBD_ILLUM_STATUS 0x015c
@@ -195,6 +196,7 @@ struct toshiba_acpi_dev {
unsigned int usb_rapid_charge_supported:1;
unsigned int usb_sleep_music_supported:1;
unsigned int kbd_function_keys_supported:1;
+ unsigned int panel_power_on_supported:1;
unsigned int sysfs_created:1;
struct mutex mutex;
@@ -1048,6 +1050,51 @@ static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
return 0;
}
+/* Panel Power ON */
+static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
+{
+ u32 result;
+
+ if (!sci_open(dev))
+ return -EIO;
+
+ result = sci_read(dev, SCI_PANEL_POWER_ON, state);
+ sci_close(dev);
+ if (result == TOS_FAILURE) {
+ pr_err("ACPI call to get Panel Power ON failed\n");
+ return -EIO;
+ } else if (result == TOS_NOT_SUPPORTED) {
+ pr_info("Panel Power on not supported\n");
+ return -ENODEV;
+ } else if (result == TOS_INPUT_DATA_ERROR) {
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
+{
+ u32 result;
+
+ if (!sci_open(dev))
+ return -EIO;
+
+ result = sci_write(dev, SCI_PANEL_POWER_ON, state);
+ sci_close(dev);
+ if (result == TOS_FAILURE) {
+ pr_err("ACPI call to set Panel Power ON failed\n");
+ return -EIO;
+ } else if (result == TOS_NOT_SUPPORTED) {
+ pr_info("Panel Power ON not supported\n");
+ return -ENODEV;
+ } else if (result == TOS_INPUT_DATA_ERROR) {
+ return -EIO;
+ }
+
+ return 0;
+}
+
/* Bluetooth rfkill handlers */
static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
@@ -1638,6 +1685,12 @@ static ssize_t toshiba_kbd_function_keys_show(struct device *dev,
static ssize_t toshiba_kbd_function_keys_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count);
+static ssize_t toshiba_panel_power_on_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+static ssize_t toshiba_panel_power_on_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
static DEVICE_ATTR(version, S_IRUGO, toshiba_version_show, NULL);
static DEVICE_ATTR(fan, S_IRUGO | S_IWUSR,
@@ -1667,6 +1720,9 @@ static DEVICE_ATTR(usb_sleep_music, S_IRUGO | S_IWUSR,
static DEVICE_ATTR(kbd_function_keys, S_IRUGO | S_IWUSR,
toshiba_kbd_function_keys_show,
toshiba_kbd_function_keys_store);
+static DEVICE_ATTR(panel_power_on, S_IRUGO | S_IWUSR,
+ toshiba_panel_power_on_show,
+ toshiba_panel_power_on_store);
static struct attribute *toshiba_attributes[] = {
&dev_attr_version.attr,
@@ -1682,6 +1738,7 @@ static struct attribute *toshiba_attributes[] = {
&dev_attr_usb_rapid_charge.attr,
&dev_attr_usb_sleep_music.attr,
&dev_attr_kbd_function_keys.attr,
+ &dev_attr_panel_power_on.attr,
NULL,
};
@@ -2169,6 +2226,44 @@ static ssize_t toshiba_kbd_function_keys_store(struct device *dev,
return count;
}
+static ssize_t toshiba_panel_power_on_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
+ u32 state;
+ int ret;
+
+ ret = toshiba_panel_power_on_get(toshiba, &state);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", state);
+}
+
+static ssize_t toshiba_panel_power_on_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
+ int state;
+ int ret;
+
+ ret = kstrtoint(buf, 0, &state);
+ if (ret)
+ return ret;
+ if (state != 0 && state != 1)
+ return -EINVAL;
+
+ ret = toshiba_panel_power_on_set(toshiba, state);
+ if (ret)
+ return ret;
+
+ pr_info("Reboot for changes to Panel Power ON to take effect");
+
+ return count;
+}
+
static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
struct attribute *attr, int idx)
{
@@ -2196,6 +2291,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
exists = (drv->usb_sleep_music_supported) ? true : false;
else if (attr == &dev_attr_kbd_function_keys.attr)
exists = (drv->kbd_function_keys_supported) ? true : false;
+ else if (attr == &dev_attr_panel_power_on.attr)
+ exists = (drv->panel_power_on_supported) ? true : false;
return exists ? attr->mode : 0;
}
@@ -2617,6 +2714,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
ret = toshiba_function_keys_get(dev, &dummy);
dev->kbd_function_keys_supported = !ret;
+ ret = toshiba_panel_power_on_get(dev, &dummy);
+ dev->panel_power_on_supported = !ret;
+
/* Determine whether or not BIOS supports fan and video interfaces */
ret = get_video_status(dev, &dummy);
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