32 	struct udl_device *udl = dev->dev_private;  in udl_parse_vendor_descriptor()  local
75 				udl->sku_pixel_limit = max_area;  in udl_parse_vendor_descriptor()
99 static int udl_select_std_channel(struct udl_device *udl)  in udl_select_std_channel()  argument
112 	ret = usb_control_msg(udl->udev,  in udl_select_std_channel()
113 			      usb_sndctrlpipe(udl->udev, 0),  in udl_select_std_channel()
133 	struct udl_device *udl = unode->dev;  in udl_urb_completion()  local
143 			atomic_set(&udl->lost_pixels, 1);  in udl_urb_completion()
147 	urb->transfer_buffer_length = udl->urbs.size; /* reset to actual */  in udl_urb_completion()
149 	spin_lock_irqsave(&udl->urbs.lock, flags);  in udl_urb_completion()
150 	list_add_tail(&unode->entry, &udl->urbs.list);  in udl_urb_completion()
151 	udl->urbs.available++;  in udl_urb_completion()
152 	spin_unlock_irqrestore(&udl->urbs.lock, flags);  in udl_urb_completion()
163 		up(&udl->urbs.limit_sem);  in udl_urb_completion()
168 	struct udl_device *udl = dev->dev_private;  in udl_free_urb_list()  local
169 	int count = udl->urbs.count;  in udl_free_urb_list()
178 		down(&udl->urbs.limit_sem);  in udl_free_urb_list()
180 		spin_lock_irq(&udl->urbs.lock);  in udl_free_urb_list()
182 		node = udl->urbs.list.next; /* have reserved one with sem */  in udl_free_urb_list()
185 		spin_unlock_irq(&udl->urbs.lock);  in udl_free_urb_list()
191 		usb_free_coherent(urb->dev, udl->urbs.size,  in udl_free_urb_list()
196 	udl->urbs.count = 0;  in udl_free_urb_list()
201 	struct udl_device *udl = dev->dev_private;  in udl_alloc_urb_list()  local
207 	spin_lock_init(&udl->urbs.lock);  in udl_alloc_urb_list()
210 	udl->urbs.size = size;  in udl_alloc_urb_list()
211 	INIT_LIST_HEAD(&udl->urbs.list);  in udl_alloc_urb_list()
213 	sema_init(&udl->urbs.limit_sem, 0);  in udl_alloc_urb_list()
214 	udl->urbs.count = 0;  in udl_alloc_urb_list()
215 	udl->urbs.available = 0;  in udl_alloc_urb_list()
217 	while (udl->urbs.count * size < wanted_size) {  in udl_alloc_urb_list()
221 		unode->dev = udl;  in udl_alloc_urb_list()
233 		buf = usb_alloc_coherent(udl->udev, size, GFP_KERNEL,  in udl_alloc_urb_list()
247 		usb_fill_bulk_urb(urb, udl->udev, usb_sndbulkpipe(udl->udev, 1),  in udl_alloc_urb_list()
251 		list_add_tail(&unode->entry, &udl->urbs.list);  in udl_alloc_urb_list()
253 		up(&udl->urbs.limit_sem);  in udl_alloc_urb_list()
254 		udl->urbs.count++;  in udl_alloc_urb_list()
255 		udl->urbs.available++;  in udl_alloc_urb_list()
258 	DRM_DEBUG("allocated %d %d byte urbs\n", udl->urbs.count, (int) size);  in udl_alloc_urb_list()
260 	return udl->urbs.count;  in udl_alloc_urb_list()
265 	struct udl_device *udl = dev->dev_private;  in udl_get_urb()  local
272 	ret = down_timeout(&udl->urbs.limit_sem, GET_URB_TIMEOUT);  in udl_get_urb()
274 		atomic_set(&udl->lost_pixels, 1);  in udl_get_urb()
276 		       ret, udl->urbs.available);  in udl_get_urb()
280 	spin_lock_irq(&udl->urbs.lock);  in udl_get_urb()
282 	BUG_ON(list_empty(&udl->urbs.list)); /* reserved one with limit_sem */  in udl_get_urb()
283 	entry = udl->urbs.list.next;  in udl_get_urb()
285 	udl->urbs.available--;  in udl_get_urb()
287 	spin_unlock_irq(&udl->urbs.lock);  in udl_get_urb()
298 	struct udl_device *udl = dev->dev_private;  in udl_submit_urb()  local
301 	BUG_ON(len > udl->urbs.size);  in udl_submit_urb()
307 		atomic_set(&udl->lost_pixels, 1);  in udl_submit_urb()
316 	struct udl_device *udl;  in udl_driver_load()  local
320 	udl = kzalloc(sizeof(struct udl_device), GFP_KERNEL);  in udl_driver_load()
321 	if (!udl)  in udl_driver_load()
324 	udl->udev = udev;  in udl_driver_load()
325 	udl->ddev = dev;  in udl_driver_load()
326 	dev->dev_private = udl;  in udl_driver_load()
328 	mutex_init(&udl->gem_lock);  in udl_driver_load()
330 	if (!udl_parse_vendor_descriptor(dev, udl->udev)) {  in udl_driver_load()
336 	if (udl_select_std_channel(udl))  in udl_driver_load()
363 	if (udl->urbs.count)  in udl_driver_load()
365 	kfree(udl);  in udl_driver_load()
378 	struct udl_device *udl = dev->dev_private;  in udl_driver_unload()  local
382 	if (udl->urbs.count)  in udl_driver_unload()
387 	kfree(udl);  in udl_driver_unload()