1 // SPDX-License-Identifier: GPL-2.0-only
9  * normal people aren't meant to understand :-)
38 static int toshiba_bt_rfkill_add(struct acpi_device *device);
39 static void toshiba_bt_rfkill_remove(struct acpi_device *device);
40 static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event);
49 static int toshiba_bt_resume(struct device *dev);
65 static int toshiba_bluetooth_present(acpi_handle handle)  in toshiba_bluetooth_present()  argument
71 	 * Some Toshiba laptops may have a fake TOS6205 device in  in toshiba_bluetooth_present()
75 	result = acpi_evaluate_integer(handle, "_STA", NULL, &bt_present);  in toshiba_bluetooth_present()
78 		return -ENXIO;  in toshiba_bluetooth_present()
82 		pr_info("Bluetooth device not present\n");  in toshiba_bluetooth_present()
83 		return -ENODEV;  in toshiba_bluetooth_present()
89 static int toshiba_bluetooth_status(acpi_handle handle)  in toshiba_bluetooth_status()  argument
94 	result = acpi_evaluate_integer(handle, "BTST", NULL, &status);  in toshiba_bluetooth_status()
96 		pr_err("Could not get Bluetooth device status\n");  in toshiba_bluetooth_status()
97 		return -ENXIO;  in toshiba_bluetooth_status()
103 static int toshiba_bluetooth_enable(acpi_handle handle)  in toshiba_bluetooth_enable()  argument
107 	result = acpi_evaluate_object(handle, "AUSB", NULL, NULL);  in toshiba_bluetooth_enable()
109 		pr_err("Could not attach USB Bluetooth device\n");  in toshiba_bluetooth_enable()
110 		return -ENXIO;  in toshiba_bluetooth_enable()
113 	result = acpi_evaluate_object(handle, "BTPO", NULL, NULL);  in toshiba_bluetooth_enable()
115 		pr_err("Could not power ON Bluetooth device\n");  in toshiba_bluetooth_enable()
116 		return -ENXIO;  in toshiba_bluetooth_enable()
122 static int toshiba_bluetooth_disable(acpi_handle handle)  in toshiba_bluetooth_disable()  argument
126 	result = acpi_evaluate_object(handle, "BTPF", NULL, NULL);  in toshiba_bluetooth_disable()
128 		pr_err("Could not power OFF Bluetooth device\n");  in toshiba_bluetooth_disable()
129 		return -ENXIO;  in toshiba_bluetooth_disable()
132 	result = acpi_evaluate_object(handle, "DUSB", NULL, NULL);  in toshiba_bluetooth_disable()
134 		pr_err("Could not detach USB Bluetooth device\n");  in toshiba_bluetooth_disable()
135 		return -ENXIO;  in toshiba_bluetooth_disable()
146 	status = toshiba_bluetooth_status(bt_dev->acpi_dev->handle);  in toshiba_bluetooth_sync_status()
148 		pr_err("Could not sync bluetooth device status\n");  in toshiba_bluetooth_sync_status()
152 	bt_dev->killswitch = (status & BT_KILLSWITCH_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
153 	bt_dev->plugged = (status & BT_PLUGGED_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
154 	bt_dev->powered = (status & BT_POWER_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
157 		 status, bt_dev->killswitch, bt_dev->plugged, bt_dev->powered);  in toshiba_bluetooth_sync_status()
172 	if (!bt_dev->killswitch)  in bt_rfkill_set_block()
176 		ret = toshiba_bluetooth_disable(bt_dev->acpi_dev->handle);  in bt_rfkill_set_block()
178 		ret = toshiba_bluetooth_enable(bt_dev->acpi_dev->handle);  in bt_rfkill_set_block()
193 	 * the 'on' position. When flipping it to 'off', the USB device is  in bt_rfkill_poll()
197 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in bt_rfkill_poll()
206 static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event)  in toshiba_bt_rfkill_notify()  argument
208 	struct toshiba_bluetooth_dev *bt_dev = acpi_driver_data(device);  in toshiba_bt_rfkill_notify()
213 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_rfkill_notify()
217 static int toshiba_bt_resume(struct device *dev)  in toshiba_bt_resume()
228 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_resume()
234 static int toshiba_bt_rfkill_add(struct acpi_device *device)  in toshiba_bt_rfkill_add()  argument
239 	result = toshiba_bluetooth_present(device->handle);  in toshiba_bt_rfkill_add()
243 	pr_info("Toshiba ACPI Bluetooth device driver\n");  in toshiba_bt_rfkill_add()
247 		return -ENOMEM;  in toshiba_bt_rfkill_add()
248 	bt_dev->acpi_dev = device;  in toshiba_bt_rfkill_add()
249 	device->driver_data = bt_dev;  in toshiba_bt_rfkill_add()
250 	dev_set_drvdata(&device->dev, bt_dev);  in toshiba_bt_rfkill_add()
258 	bt_dev->rfk = rfkill_alloc("Toshiba Bluetooth",  in toshiba_bt_rfkill_add()
259 				   &device->dev,  in toshiba_bt_rfkill_add()
263 	if (!bt_dev->rfk) {  in toshiba_bt_rfkill_add()
264 		pr_err("Unable to allocate rfkill device\n");  in toshiba_bt_rfkill_add()
266 		return -ENOMEM;  in toshiba_bt_rfkill_add()
269 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_rfkill_add()
271 	result = rfkill_register(bt_dev->rfk);  in toshiba_bt_rfkill_add()
273 		pr_err("Unable to register rfkill device\n");  in toshiba_bt_rfkill_add()
274 		rfkill_destroy(bt_dev->rfk);  in toshiba_bt_rfkill_add()
281 static void toshiba_bt_rfkill_remove(struct acpi_device *device)  in toshiba_bt_rfkill_remove()  argument
283 	struct toshiba_bluetooth_dev *bt_dev = acpi_driver_data(device);  in toshiba_bt_rfkill_remove()
286 	if (bt_dev->rfk) {  in toshiba_bt_rfkill_remove()
287 		rfkill_unregister(bt_dev->rfk);  in toshiba_bt_rfkill_remove()
288 		rfkill_destroy(bt_dev->rfk);  in toshiba_bt_rfkill_remove()
293 	toshiba_bluetooth_disable(device->handle);  in toshiba_bt_rfkill_remove()