23 static bool uvc_input_has_button(struct uvc_device *dev)  in uvc_input_has_button()  argument
33 	list_for_each_entry(stream, &dev->streams, list) {  in uvc_input_has_button()
42 static int uvc_input_init(struct uvc_device *dev)  in uvc_input_init()  argument
47 	if (!uvc_input_has_button(dev))  in uvc_input_init()
54 	usb_make_path(dev->udev, dev->input_phys, sizeof(dev->input_phys));  in uvc_input_init()
55 	strlcat(dev->input_phys, "/button", sizeof(dev->input_phys));  in uvc_input_init()
57 	input->name = dev->name;  in uvc_input_init()
58 	input->phys = dev->input_phys;  in uvc_input_init()
59 	usb_to_input_id(dev->udev, &input->id);  in uvc_input_init()
60 	input->dev.parent = &dev->intf->dev;  in uvc_input_init()
68 	dev->input = input;  in uvc_input_init()
76 static void uvc_input_unregister(struct uvc_device *dev)  in uvc_input_unregister()  argument
78 	if (dev->input)  in uvc_input_unregister()
79 		input_unregister_device(dev->input);  in uvc_input_unregister()
82 static void uvc_input_report_key(struct uvc_device *dev, unsigned int code,  in uvc_input_report_key()  argument
85 	if (dev->input) {  in uvc_input_report_key()
86 		input_report_key(dev->input, code, value);  in uvc_input_report_key()
87 		input_sync(dev->input);  in uvc_input_report_key()
92 #define uvc_input_init(dev)  argument
93 #define uvc_input_unregister(dev)  argument
94 #define uvc_input_report_key(dev, code, value)  argument
100 static void uvc_event_streaming(struct uvc_device *dev,  in uvc_event_streaming()  argument
104 		uvc_dbg(dev, STATUS,  in uvc_event_streaming()
113 		uvc_dbg(dev, STATUS, "Button (intf %u) %s len %d\n",  in uvc_event_streaming()
116 		uvc_input_report_key(dev, KEY_CAMERA, status->streaming.button);  in uvc_event_streaming()
118 		uvc_dbg(dev, STATUS, "Stream %u error event %02x len %d\n",  in uvc_event_streaming()
142 static struct uvc_control *uvc_event_find_ctrl(struct uvc_device *dev,  in uvc_event_find_ctrl()  argument
146 	list_for_each_entry((*chain), &dev->chains, list) {  in uvc_event_find_ctrl()
168 	struct uvc_device *dev = urb->context;  in uvc_event_control()  local
174 		uvc_dbg(dev, STATUS, "Invalid control status event received\n");  in uvc_event_control()
178 	uvc_dbg(dev, STATUS, "Control %u/%u %s change len %d\n",  in uvc_event_control()
183 	ctrl = uvc_event_find_ctrl(dev, status, &chain);  in uvc_event_control()
204 	struct uvc_device *dev = urb->context;  in uvc_status_complete()  local
218 		dev_warn(&dev->udev->dev,  in uvc_status_complete()
226 		switch (dev->status->bStatusType & 0x0f) {  in uvc_status_complete()
228 			if (uvc_event_control(urb, dev->status, len))  in uvc_status_complete()
235 			uvc_event_streaming(dev, dev->status, len);  in uvc_status_complete()
240 			uvc_dbg(dev, STATUS, "Unknown status event type %u\n",  in uvc_status_complete()
241 				dev->status->bStatusType);  in uvc_status_complete()
247 	urb->interval = dev->int_ep->desc.bInterval;  in uvc_status_complete()
250 		dev_err(&dev->udev->dev,  in uvc_status_complete()
254 int uvc_status_init(struct uvc_device *dev)  in uvc_status_init()  argument
256 	struct usb_host_endpoint *ep = dev->int_ep;  in uvc_status_init()
263 	uvc_input_init(dev);  in uvc_status_init()
265 	dev->status = kzalloc(sizeof(*dev->status), GFP_KERNEL);  in uvc_status_init()
266 	if (!dev->status)  in uvc_status_init()
269 	dev->int_urb = usb_alloc_urb(0, GFP_KERNEL);  in uvc_status_init()
270 	if (!dev->int_urb) {  in uvc_status_init()
271 		kfree(dev->status);  in uvc_status_init()
275 	pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress);  in uvc_status_init()
282 	if (interval > 16 && dev->udev->speed == USB_SPEED_HIGH &&  in uvc_status_init()
283 	    (dev->quirks & UVC_QUIRK_STATUS_INTERVAL))  in uvc_status_init()
286 	usb_fill_int_urb(dev->int_urb, dev->udev, pipe,  in uvc_status_init()
287 		dev->status, sizeof(*dev->status), uvc_status_complete,  in uvc_status_init()
288 		dev, interval);  in uvc_status_init()
293 void uvc_status_unregister(struct uvc_device *dev)  in uvc_status_unregister()  argument
295 	usb_kill_urb(dev->int_urb);  in uvc_status_unregister()
296 	uvc_input_unregister(dev);  in uvc_status_unregister()
299 void uvc_status_cleanup(struct uvc_device *dev)  in uvc_status_cleanup()  argument
301 	usb_free_urb(dev->int_urb);  in uvc_status_cleanup()
302 	kfree(dev->status);  in uvc_status_cleanup()
305 int uvc_status_start(struct uvc_device *dev, gfp_t flags)  in uvc_status_start()  argument
307 	if (dev->int_urb == NULL)  in uvc_status_start()
310 	return usb_submit_urb(dev->int_urb, flags);  in uvc_status_start()
313 void uvc_status_stop(struct uvc_device *dev)  in uvc_status_stop()  argument
315 	struct uvc_ctrl_work *w = &dev->async_ctrl;  in uvc_status_stop()
323 	smp_store_release(&dev->flush_status, true);  in uvc_status_stop()
333 	usb_kill_urb(dev->int_urb);  in uvc_status_stop()
351 	smp_store_release(&dev->flush_status, false);  in uvc_status_stop()