diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 4f722aa0c7b3..3884bdd1e9fe 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -114,6 +114,7 @@ MODULE_LICENSE("GPL"); #define HCI_VIDEO_OUT 0x001c #define HCI_HOTKEY_EVENT 0x001e #define HCI_LCD_BRIGHTNESS 0x002a +#define HCI_WIRELESS 0x0056 #define HCI_ACCELEROMETER 0x006d #define HCI_KBD_ILLUMINATION 0x0095 #define HCI_ECO_MODE 0x0097 @@ -148,6 +149,10 @@ MODULE_LICENSE("GPL"); #define SCI_KBD_MODE_ON 0x8 #define SCI_KBD_MODE_OFF 0x10 #define SCI_KBD_TIME_MAX 0x3c001a +#define HCI_WIRELESS_STATUS 0x1 +#define HCI_WIRELESS_WWAN 0x3 +#define HCI_WIRELESS_WWAN_STATUS 0x2000 +#define HCI_WIRELESS_WWAN_POWER 0x4000 #define SCI_USB_CHARGE_MODE_MASK 0xff #define SCI_USB_CHARGE_DISABLED 0x00 #define SCI_USB_CHARGE_ALTERNATE 0x09 @@ -197,12 +202,14 @@ struct toshiba_acpi_dev { unsigned int kbd_function_keys_supported:1; unsigned int panel_power_on_supported:1; unsigned int usb_three_supported:1; + unsigned int wwan_supported:1; unsigned int sysfs_created:1; unsigned int special_functions; bool kbd_led_registered; bool illumination_led_registered; bool eco_led_registered; + bool killswitch; }; static struct toshiba_acpi_dev *toshiba_acpi; @@ -1085,6 +1092,104 @@ static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev, return -EIO; } +/* Wireless status (RFKill, WLAN, BT, WWAN) */ +static int toshiba_wireless_status(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + in[3] = HCI_WIRELESS_STATUS; + status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get Wireless status failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + return -EIO; + + dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS); + + return 0; +} + +/* WWAN */ +static void toshiba_wwan_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->wwan_supported = 0; + + /* + * WWAN support can be queried by setting the in[3] value to + * HCI_WIRELESS_WWAN (0x03). + * + * If supported, out[0] contains TOS_SUCCESS and out[2] contains + * HCI_WIRELESS_WWAN_STATUS (0x2000). + * + * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300) + * or TOS_NOT_SUPPORTED (0x8000). + */ + in[3] = HCI_WIRELESS_WWAN; + status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get WWAN status failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS); +} + +static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + in[3] = HCI_WIRELESS_WWAN_STATUS; + status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to set WWAN status failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + return -EIO; + + /* + * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to + * (de)activate the device, but some others need the + * HCI_WIRELESS_WWAN_POWER call as well. + */ + in[3] = HCI_WIRELESS_WWAN_POWER; + status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to set WWAN power failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + return out[0] == TOS_SUCCESS ? 0 : -EIO; +} + /* Transflective Backlight */ static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) { @@ -2569,6 +2674,8 @@ static void print_supported_features(struct toshiba_acpi_dev *dev) pr_cont(" panel-power-on"); if (dev->usb_three_supported) pr_cont(" usb3"); + if (dev->wwan_supported) + pr_cont(" wwan"); pr_cont("\n"); } @@ -2744,6 +2851,8 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) ret = get_fan_status(dev, &dummy); dev->fan_supported = !ret; + toshiba_wwan_available(dev); + print_supported_features(dev); ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, |