diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_bluetooth.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_bluetooth.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c index 2cb1ea62b4a7..b479a701d3a8 100644 --- a/drivers/platform/x86/toshiba_bluetooth.c +++ b/drivers/platform/x86/toshiba_bluetooth.c @@ -57,6 +57,38 @@ static struct acpi_driver toshiba_bt_rfkill_driver = { .drv.pm = &toshiba_bt_pm, }; +static int toshiba_bluetooth_present(acpi_handle handle) +{ + acpi_status result; + u64 bt_present; + + result = acpi_evaluate_integer(handle, "_STA", NULL, &bt_present); + if (ACPI_FAILURE(result)) { + pr_err("ACPI call to query Bluetooth presence failed"); + return -ENXIO; + } else if (!bt_present) { + pr_info("Bluetooth device not present\n"); + return -ENODEV; + } + + return 0; +} + +static int toshiba_bluetooth_status(acpi_handle handle) +{ + acpi_status result; + u64 status; + + result = acpi_evaluate_integer(handle, "BTST", NULL, &status); + if (ACPI_FAILURE(result)) { + pr_err("Could not get Bluetooth device status\n"); + return -ENXIO; + } + + pr_info("Bluetooth status %llu\n", status); + + return status; +} static int toshiba_bluetooth_enable(acpi_handle handle) { @@ -85,6 +117,25 @@ static int toshiba_bluetooth_enable(acpi_handle handle) return -ENODEV; } +static int toshiba_bluetooth_disable(acpi_handle handle) +{ + acpi_status result; + + result = acpi_evaluate_object(handle, "BTPF", NULL, NULL); + if (ACPI_FAILURE(result)) { + pr_err("Could not power OFF Bluetooth device\n"); + return -ENXIO; + } + + result = acpi_evaluate_object(handle, "DUSB", NULL, NULL); + if (ACPI_FAILURE(result)) { + pr_err("Could not detach USB Bluetooth device\n"); + return -ENXIO; + } + + return 0; +} + static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event) { toshiba_bluetooth_enable(device->handle); |