diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 100 |
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); |
