275 static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)  in hdm_add_padding()  argument
283 	num_frames = mbo->buffer_length / frame_size;  in hdm_add_padding()
292 		memmove(mbo->virt_address + j * USB_MTU,  in hdm_add_padding()
293 			mbo->virt_address + j * frame_size,  in hdm_add_padding()
295 	mbo->buffer_length = num_frames * USB_MTU;  in hdm_add_padding()
309 			      struct mbo *mbo)  in hdm_remove_padding()  argument
317 	num_frames = mbo->processed_length / USB_MTU;  in hdm_remove_padding()
320 		memmove(mbo->virt_address + frame_size * j,  in hdm_remove_padding()
321 			mbo->virt_address + USB_MTU * j,  in hdm_remove_padding()
324 	mbo->processed_length = frame_size * num_frames;  in hdm_remove_padding()
341 	struct mbo *mbo = urb->context;  in hdm_write_completion()  local
342 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_write_completion()
343 	unsigned int channel = mbo->hdm_channel_id;  in hdm_write_completion()
349 	mbo->processed_length = 0;  in hdm_write_completion()
350 	mbo->status = MBO_E_INVAL;  in hdm_write_completion()
355 			mbo->processed_length = urb->actual_length;  in hdm_write_completion()
356 			mbo->status = MBO_SUCCESS;  in hdm_write_completion()
368 			mbo->status = MBO_E_CLOSE;  in hdm_write_completion()
375 	if (likely(mbo->complete))  in hdm_write_completion()
376 		mbo->complete(mbo);  in hdm_write_completion()
393 	struct mbo *mbo = urb->context;  in hdm_read_completion()  local
394 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_read_completion()
395 	unsigned int channel = mbo->hdm_channel_id;  in hdm_read_completion()
402 	mbo->processed_length = 0;  in hdm_read_completion()
403 	mbo->status = MBO_E_INVAL;  in hdm_read_completion()
408 			mbo->processed_length = urb->actual_length;  in hdm_read_completion()
409 			mbo->status = MBO_SUCCESS;  in hdm_read_completion()
411 			    hdm_remove_padding(mdev, channel, mbo)) {  in hdm_read_completion()
412 				mbo->processed_length = 0;  in hdm_read_completion()
413 				mbo->status = MBO_E_INVAL;  in hdm_read_completion()
425 			mbo->status = MBO_E_CLOSE;  in hdm_read_completion()
436 	if (likely(mbo->complete))  in hdm_read_completion()
437 		mbo->complete(mbo);  in hdm_read_completion()
457 		       struct mbo *mbo)  in hdm_enqueue()  argument
466 	if (!mbo)  in hdm_enqueue()
484 	    hdm_add_padding(mdev, channel, mbo)) {  in hdm_enqueue()
489 	urb->transfer_dma = mbo->bus_address;  in hdm_enqueue()
490 	virt_address = mbo->virt_address;  in hdm_enqueue()
491 	length = mbo->buffer_length;  in hdm_enqueue()
500 				  mbo);  in hdm_enqueue()
511 				  mbo);  in hdm_enqueue()
534 static void *hdm_dma_alloc(struct mbo *mbo, u32 size)  in hdm_dma_alloc()  argument
536 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_dma_alloc()
539 				  &mbo->bus_address);  in hdm_dma_alloc()
542 static void hdm_dma_free(struct mbo *mbo, u32 size)  in hdm_dma_free()  argument
544 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_dma_free()
546 	usb_free_coherent(mdev->usb_device, size, mbo->virt_address,  in hdm_dma_free()
547 			  mbo->bus_address);  in hdm_dma_free()