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);
66 static int toshiba_bluetooth_present(acpi_handle handle)  in toshiba_bluetooth_present()  argument
72 	 * Some Toshiba laptops may have a fake TOS6205 device in  in toshiba_bluetooth_present()
76 	result = acpi_evaluate_integer(handle, "_STA", NULL, &bt_present);  in toshiba_bluetooth_present()
79 		return -ENXIO;  in toshiba_bluetooth_present()
83 		pr_info("Bluetooth device not present\n");  in toshiba_bluetooth_present()
84 		return -ENODEV;  in toshiba_bluetooth_present()
90 static int toshiba_bluetooth_status(acpi_handle handle)  in toshiba_bluetooth_status()  argument
95 	result = acpi_evaluate_integer(handle, "BTST", NULL, &status);  in toshiba_bluetooth_status()
97 		pr_err("Could not get Bluetooth device status\n");  in toshiba_bluetooth_status()
98 		return -ENXIO;  in toshiba_bluetooth_status()
104 static int toshiba_bluetooth_enable(acpi_handle handle)  in toshiba_bluetooth_enable()  argument
108 	result = acpi_evaluate_object(handle, "AUSB", NULL, NULL);  in toshiba_bluetooth_enable()
110 		pr_err("Could not attach USB Bluetooth device\n");  in toshiba_bluetooth_enable()
111 		return -ENXIO;  in toshiba_bluetooth_enable()
114 	result = acpi_evaluate_object(handle, "BTPO", NULL, NULL);  in toshiba_bluetooth_enable()
116 		pr_err("Could not power ON Bluetooth device\n");  in toshiba_bluetooth_enable()
117 		return -ENXIO;  in toshiba_bluetooth_enable()
123 static int toshiba_bluetooth_disable(acpi_handle handle)  in toshiba_bluetooth_disable()  argument
127 	result = acpi_evaluate_object(handle, "BTPF", NULL, NULL);  in toshiba_bluetooth_disable()
129 		pr_err("Could not power OFF Bluetooth device\n");  in toshiba_bluetooth_disable()
130 		return -ENXIO;  in toshiba_bluetooth_disable()
133 	result = acpi_evaluate_object(handle, "DUSB", NULL, NULL);  in toshiba_bluetooth_disable()
135 		pr_err("Could not detach USB Bluetooth device\n");  in toshiba_bluetooth_disable()
136 		return -ENXIO;  in toshiba_bluetooth_disable()
147 	status = toshiba_bluetooth_status(bt_dev->acpi_dev->handle);  in toshiba_bluetooth_sync_status()
149 		pr_err("Could not sync bluetooth device status\n");  in toshiba_bluetooth_sync_status()
153 	bt_dev->killswitch = (status & BT_KILLSWITCH_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
154 	bt_dev->plugged = (status & BT_PLUGGED_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
155 	bt_dev->powered = (status & BT_POWER_MASK) ? true : false;  in toshiba_bluetooth_sync_status()
158 		 status, bt_dev->killswitch, bt_dev->plugged, bt_dev->powered);  in toshiba_bluetooth_sync_status()
173 	if (!bt_dev->killswitch)  in bt_rfkill_set_block()
177 		ret = toshiba_bluetooth_disable(bt_dev->acpi_dev->handle);  in bt_rfkill_set_block()
179 		ret = toshiba_bluetooth_enable(bt_dev->acpi_dev->handle);  in bt_rfkill_set_block()
194 	 * the 'on' position. When flipping it to 'off', the USB device is  in bt_rfkill_poll()
198 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in bt_rfkill_poll()
207 static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event)  in toshiba_bt_rfkill_notify()  argument
209 	struct toshiba_bluetooth_dev *bt_dev = acpi_driver_data(device);  in toshiba_bt_rfkill_notify()
214 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_rfkill_notify()
218 static int toshiba_bt_resume(struct device *dev)  in toshiba_bt_resume()
229 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_resume()
235 static int toshiba_bt_rfkill_add(struct acpi_device *device)  in toshiba_bt_rfkill_add()  argument
240 	result = toshiba_bluetooth_present(device->handle);  in toshiba_bt_rfkill_add()
244 	pr_info("Toshiba ACPI Bluetooth device driver\n");  in toshiba_bt_rfkill_add()
248 		return -ENOMEM;  in toshiba_bt_rfkill_add()
249 	bt_dev->acpi_dev = device;  in toshiba_bt_rfkill_add()
250 	device->driver_data = bt_dev;  in toshiba_bt_rfkill_add()
251 	dev_set_drvdata(&device->dev, bt_dev);  in toshiba_bt_rfkill_add()
259 	bt_dev->rfk = rfkill_alloc("Toshiba Bluetooth",  in toshiba_bt_rfkill_add()
260 				   &device->dev,  in toshiba_bt_rfkill_add()
264 	if (!bt_dev->rfk) {  in toshiba_bt_rfkill_add()
265 		pr_err("Unable to allocate rfkill device\n");  in toshiba_bt_rfkill_add()
267 		return -ENOMEM;  in toshiba_bt_rfkill_add()
270 	rfkill_set_hw_state(bt_dev->rfk, !bt_dev->killswitch);  in toshiba_bt_rfkill_add()
272 	result = rfkill_register(bt_dev->rfk);  in toshiba_bt_rfkill_add()
274 		pr_err("Unable to register rfkill device\n");  in toshiba_bt_rfkill_add()
275 		rfkill_destroy(bt_dev->rfk);  in toshiba_bt_rfkill_add()
282 static void toshiba_bt_rfkill_remove(struct acpi_device *device)  in toshiba_bt_rfkill_remove()  argument
284 	struct toshiba_bluetooth_dev *bt_dev = acpi_driver_data(device);  in toshiba_bt_rfkill_remove()
287 	if (bt_dev->rfk) {  in toshiba_bt_rfkill_remove()
288 		rfkill_unregister(bt_dev->rfk);  in toshiba_bt_rfkill_remove()
289 		rfkill_destroy(bt_dev->rfk);  in toshiba_bt_rfkill_remove()
294 	toshiba_bluetooth_disable(device->handle);  in toshiba_bt_rfkill_remove()