diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 08c53768447b..c8e8bfb78c19 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -112,6 +112,7 @@ MODULE_LICENSE("GPL"); #define HCI_LCD_BRIGHTNESS 0x002a #define HCI_WIRELESS 0x0056 #define HCI_KBD_ILLUMINATION 0x0095 +#define HCI_ECO_MODE 0x0097 #define SCI_ILLUMINATION 0x014e #define SCI_KBD_ILLUM_STATUS 0x015c #define SCI_TOUCHPAD 0x050e @@ -142,6 +143,7 @@ struct toshiba_acpi_dev { struct backlight_device *backlight_dev; struct led_classdev led_dev; struct led_classdev kbd_led; + struct led_classdev eco_led; int force_fan; int last_key_event; @@ -159,6 +161,7 @@ struct toshiba_acpi_dev { unsigned int kbd_illum_supported:1; unsigned int kbd_led_registered:1; unsigned int touchpad_supported:1; + unsigned int eco_supported:1; unsigned int sysfs_created:1; struct mutex mutex; @@ -571,6 +574,57 @@ static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) return 0; } +/* Eco Mode support */ +static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev) +{ + acpi_status status; + u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 }; + u32 out[HCI_WORDS]; + + status = hci_raw(dev, in, out); + if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) { + pr_info("ACPI call to get ECO led failed\n"); + return 0; + } + + return 1; +} + +static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev) +{ + struct toshiba_acpi_dev *dev = container_of(cdev, + struct toshiba_acpi_dev, eco_led); + u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status; + + status = hci_raw(dev, in, out); + if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) { + pr_err("ACPI call to get ECO led failed\n"); + return LED_OFF; + } + + return out[2] ? LED_FULL : LED_OFF; +} + +static void toshiba_eco_mode_set_status(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct toshiba_acpi_dev *dev = container_of(cdev, + struct toshiba_acpi_dev, eco_led); + u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status; + + /* Switch the Eco Mode led on/off */ + in[2] = (brightness) ? 1 : 0; + status = hci_raw(dev, in, out); + if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) { + pr_err("ACPI call to set ECO led failed\n"); + return; + } +} + /* Bluetooth rfkill handlers */ static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present) @@ -1469,6 +1523,9 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev) if (dev->kbd_led_registered) led_classdev_unregister(&dev->kbd_led); + + if (dev->eco_supported) + led_classdev_unregister(&dev->eco_led); if (toshiba_acpi) toshiba_acpi = NULL; @@ -1556,6 +1613,15 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) dev->illumination_supported = 1; } + if (toshiba_eco_mode_available(dev)) { + dev->eco_led.name = "toshiba::eco_mode"; + dev->eco_led.max_brightness = 1; + dev->eco_led.brightness_set = toshiba_eco_mode_set_status; + dev->eco_led.brightness_get = toshiba_eco_mode_get_status; + if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led)) + dev->eco_supported = 1; + } + ret = toshiba_kbd_illum_status_get(dev, &dummy); if (!ret) { dev->kbd_time = dummy >> HCI_MISC_SHIFT; |