7  * The info necessary to drive the shark was taken from the small userspace
8  * shark.c program by Michael Rolig, which he kindly placed in the Public
82 	struct shark_device *shark = tea->private_data;  in shark_write_val()  local
86 	if (shark->last_val == val)  in shark_write_val()
89 	memset(shark->transfer_buffer, 0, TB_LEN);  in shark_write_val()
90 	shark->transfer_buffer[0] = 0xc0; /* Write shift register command */  in shark_write_val()
92 		shark->transfer_buffer[i] |= (val >> (24 - i * 8)) & 0xff;  in shark_write_val()
94 	res = usb_interrupt_msg(shark->usbdev,  in shark_write_val()
95 				usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),  in shark_write_val()
96 				shark->transfer_buffer, TB_LEN,  in shark_write_val()
99 		shark->last_val = val;  in shark_write_val()
101 		v4l2_err(&shark->v4l2_dev, "set-freq error: %d\n", res);  in shark_write_val()
106 	struct shark_device *shark = tea->private_data;  in shark_read_val()  local
110 	memset(shark->transfer_buffer, 0, TB_LEN);  in shark_read_val()
111 	shark->transfer_buffer[0] = 0x80;  in shark_read_val()
112 	res = usb_interrupt_msg(shark->usbdev,  in shark_read_val()
113 				usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),  in shark_read_val()
114 				shark->transfer_buffer, TB_LEN,  in shark_read_val()
117 		v4l2_err(&shark->v4l2_dev, "request-status error: %d\n", res);  in shark_read_val()
118 		return shark->last_val;  in shark_read_val()
121 	res = usb_interrupt_msg(shark->usbdev,  in shark_read_val()
122 				usb_rcvintpipe(shark->usbdev, SHARK_IN_EP),  in shark_read_val()
123 				shark->transfer_buffer, TB_LEN,  in shark_read_val()
126 		v4l2_err(&shark->v4l2_dev, "get-status error: %d\n", res);  in shark_read_val()
127 		return shark->last_val;  in shark_read_val()
131 		val |= shark->transfer_buffer[i] << (24 - i * 8);  in shark_read_val()
133 	shark->last_val = val;  in shark_read_val()
136 	 * The shark does not allow actually reading the stereo / mono pin :(  in shark_read_val()
142 		shark->tea.stereo = true;  in shark_read_val()
144 		shark->tea.stereo = false;  in shark_read_val()
157 	struct shark_device *shark =  in shark_led_work()  local
162 		if (!test_and_clear_bit(i, &shark->brightness_new))  in shark_led_work()
165 		brightness = atomic_read(&shark->brightness[i]);  in shark_led_work()
166 		memset(shark->transfer_buffer, 0, TB_LEN);  in shark_led_work()
168 			shark->transfer_buffer[0] = 0xA0 + i;  in shark_led_work()
169 			shark->transfer_buffer[1] = brightness;  in shark_led_work()
171 			shark->transfer_buffer[0] = brightness ? 0xA9 : 0xA8;  in shark_led_work()
172 		res = usb_interrupt_msg(shark->usbdev,  in shark_led_work()
173 					usb_sndintpipe(shark->usbdev, 0x05),  in shark_led_work()
174 					shark->transfer_buffer, TB_LEN,  in shark_led_work()
177 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",  in shark_led_work()
178 				 shark->led_names[i], res);  in shark_led_work()
185 	struct shark_device *shark =  in shark_led_set_blue()  local
188 	atomic_set(&shark->brightness[BLUE_LED], value);  in shark_led_set_blue()
189 	set_bit(BLUE_LED, &shark->brightness_new);  in shark_led_set_blue()
190 	clear_bit(BLUE_IS_PULSE, &shark->brightness_new);  in shark_led_set_blue()
191 	schedule_work(&shark->led_work);  in shark_led_set_blue()
197 	struct shark_device *shark = container_of(led_cdev,  in shark_led_set_blue_pulse()  local
200 	atomic_set(&shark->brightness[BLUE_PULSE_LED], 256 - value);  in shark_led_set_blue_pulse()
201 	set_bit(BLUE_PULSE_LED, &shark->brightness_new);  in shark_led_set_blue_pulse()
202 	set_bit(BLUE_IS_PULSE, &shark->brightness_new);  in shark_led_set_blue_pulse()
203 	schedule_work(&shark->led_work);  in shark_led_set_blue_pulse()
209 	struct shark_device *shark =  in shark_led_set_red()  local
212 	atomic_set(&shark->brightness[RED_LED], value);  in shark_led_set_red()
213 	set_bit(RED_LED, &shark->brightness_new);  in shark_led_set_red()
214 	schedule_work(&shark->led_work);  in shark_led_set_red()
238 static int shark_register_leds(struct shark_device *shark, struct device *dev)  in shark_register_leds()  argument
242 	atomic_set(&shark->brightness[BLUE_LED], 127);  in shark_register_leds()
243 	INIT_WORK(&shark->led_work, shark_led_work);  in shark_register_leds()
245 		shark->leds[i] = shark_led_templates[i];  in shark_register_leds()
246 		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),  in shark_register_leds()
247 			 shark->leds[i].name, shark->v4l2_dev.name);  in shark_register_leds()
248 		shark->leds[i].name = shark->led_names[i];  in shark_register_leds()
249 		retval = led_classdev_register(dev, &shark->leds[i]);  in shark_register_leds()
251 			v4l2_err(&shark->v4l2_dev,  in shark_register_leds()
253 				 shark->led_names[i]);  in shark_register_leds()
260 static void shark_unregister_leds(struct shark_device *shark)  in shark_unregister_leds()  argument
265 		led_classdev_unregister(&shark->leds[i]);  in shark_unregister_leds()
267 	cancel_work_sync(&shark->led_work);  in shark_unregister_leds()
270 static inline void shark_resume_leds(struct shark_device *shark)  in shark_resume_leds()  argument
272 	if (test_bit(BLUE_IS_PULSE, &shark->brightness_new))  in shark_resume_leds()
273 		set_bit(BLUE_PULSE_LED, &shark->brightness_new);  in shark_resume_leds()
275 		set_bit(BLUE_LED, &shark->brightness_new);  in shark_resume_leds()
276 	set_bit(RED_LED, &shark->brightness_new);  in shark_resume_leds()
277 	schedule_work(&shark->led_work);  in shark_resume_leds()
280 static int shark_register_leds(struct shark_device *shark, struct device *dev)  in shark_register_leds()  argument
282 	v4l2_warn(&shark->v4l2_dev,  in shark_register_leds()
286 static inline void shark_unregister_leds(struct shark_device *shark) { }  in shark_unregister_leds()  argument
287 static inline void shark_resume_leds(struct shark_device *shark) { }  in shark_resume_leds()  argument
293 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);  in usb_shark_disconnect()  local
295 	mutex_lock(&shark->tea.mutex);  in usb_shark_disconnect()
296 	v4l2_device_disconnect(&shark->v4l2_dev);  in usb_shark_disconnect()
297 	snd_tea575x_exit(&shark->tea);  in usb_shark_disconnect()
298 	mutex_unlock(&shark->tea.mutex);  in usb_shark_disconnect()
300 	shark_unregister_leds(shark);  in usb_shark_disconnect()
302 	v4l2_device_put(&shark->v4l2_dev);  in usb_shark_disconnect()
307 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);  in usb_shark_release()  local
309 	v4l2_device_unregister(&shark->v4l2_dev);  in usb_shark_release()
310 	kfree(shark->transfer_buffer);  in usb_shark_release()
311 	kfree(shark);  in usb_shark_release()
317 	struct shark_device *shark;  in usb_shark_probe()  local
330 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);  in usb_shark_probe()
331 	if (!shark)  in usb_shark_probe()
334 	shark->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL);  in usb_shark_probe()
335 	if (!shark->transfer_buffer)  in usb_shark_probe()
338 	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);  in usb_shark_probe()
340 	retval = shark_register_leds(shark, &intf->dev);  in usb_shark_probe()
344 	shark->v4l2_dev.release = usb_shark_release;  in usb_shark_probe()
345 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);  in usb_shark_probe()
347 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");  in usb_shark_probe()
351 	shark->usbdev = interface_to_usbdev(intf);  in usb_shark_probe()
352 	shark->tea.v4l2_dev = &shark->v4l2_dev;  in usb_shark_probe()
353 	shark->tea.private_data = shark;  in usb_shark_probe()
354 	shark->tea.radio_nr = -1;  in usb_shark_probe()
355 	shark->tea.ops = &shark_tea_ops;  in usb_shark_probe()
356 	shark->tea.cannot_mute = true;  in usb_shark_probe()
357 	shark->tea.has_am = true;  in usb_shark_probe()
358 	strscpy(shark->tea.card, "Griffin radioSHARK",  in usb_shark_probe()
359 		sizeof(shark->tea.card));  in usb_shark_probe()
360 	usb_make_path(shark->usbdev, shark->tea.bus_info,  in usb_shark_probe()
361 		sizeof(shark->tea.bus_info));  in usb_shark_probe()
363 	retval = snd_tea575x_init(&shark->tea, THIS_MODULE);  in usb_shark_probe()
365 		v4l2_err(&shark->v4l2_dev, "couldn't init tea5757\n");  in usb_shark_probe()
372 	v4l2_device_unregister(&shark->v4l2_dev);  in usb_shark_probe()
374 	shark_unregister_leds(shark);  in usb_shark_probe()
376 	kfree(shark->transfer_buffer);  in usb_shark_probe()
378 	kfree(shark);  in usb_shark_probe()
392 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);  in usb_shark_resume()  local
394 	mutex_lock(&shark->tea.mutex);  in usb_shark_resume()
395 	snd_tea575x_set_freq(&shark->tea);  in usb_shark_resume()
396 	mutex_unlock(&shark->tea.mutex);  in usb_shark_resume()
398 	shark_resume_leds(shark);  in usb_shark_resume()