276 static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)  in hdm_add_padding()  argument
284 	num_frames = mbo->buffer_length / frame_size;  in hdm_add_padding()
293 		memmove(mbo->virt_address + j * USB_MTU,  in hdm_add_padding()
294 			mbo->virt_address + j * frame_size,  in hdm_add_padding()
296 	mbo->buffer_length = num_frames * USB_MTU;  in hdm_add_padding()
310 			      struct mbo *mbo)  in hdm_remove_padding()  argument
318 	num_frames = mbo->processed_length / USB_MTU;  in hdm_remove_padding()
321 		memmove(mbo->virt_address + frame_size * j,  in hdm_remove_padding()
322 			mbo->virt_address + USB_MTU * j,  in hdm_remove_padding()
325 	mbo->processed_length = frame_size * num_frames;  in hdm_remove_padding()
342 	struct mbo *mbo = urb->context;  in hdm_write_completion()  local
343 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_write_completion()
344 	unsigned int channel = mbo->hdm_channel_id;  in hdm_write_completion()
350 	mbo->processed_length = 0;  in hdm_write_completion()
351 	mbo->status = MBO_E_INVAL;  in hdm_write_completion()
356 			mbo->processed_length = urb->actual_length;  in hdm_write_completion()
357 			mbo->status = MBO_SUCCESS;  in hdm_write_completion()
369 			mbo->status = MBO_E_CLOSE;  in hdm_write_completion()
376 	if (likely(mbo->complete))  in hdm_write_completion()
377 		mbo->complete(mbo);  in hdm_write_completion()
394 	struct mbo *mbo = urb->context;  in hdm_read_completion()  local
395 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_read_completion()
396 	unsigned int channel = mbo->hdm_channel_id;  in hdm_read_completion()
403 	mbo->processed_length = 0;  in hdm_read_completion()
404 	mbo->status = MBO_E_INVAL;  in hdm_read_completion()
409 			mbo->processed_length = urb->actual_length;  in hdm_read_completion()
410 			mbo->status = MBO_SUCCESS;  in hdm_read_completion()
412 			    hdm_remove_padding(mdev, channel, mbo)) {  in hdm_read_completion()
413 				mbo->processed_length = 0;  in hdm_read_completion()
414 				mbo->status = MBO_E_INVAL;  in hdm_read_completion()
426 			mbo->status = MBO_E_CLOSE;  in hdm_read_completion()
437 	if (likely(mbo->complete))  in hdm_read_completion()
438 		mbo->complete(mbo);  in hdm_read_completion()
458 		       struct mbo *mbo)  in hdm_enqueue()  argument
467 	if (!mbo)  in hdm_enqueue()
485 	    hdm_add_padding(mdev, channel, mbo)) {  in hdm_enqueue()
490 	urb->transfer_dma = mbo->bus_address;  in hdm_enqueue()
491 	virt_address = mbo->virt_address;  in hdm_enqueue()
492 	length = mbo->buffer_length;  in hdm_enqueue()
501 				  mbo);  in hdm_enqueue()
512 				  mbo);  in hdm_enqueue()
535 static void *hdm_dma_alloc(struct mbo *mbo, u32 size)  in hdm_dma_alloc()  argument
537 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_dma_alloc()
540 				  &mbo->bus_address);  in hdm_dma_alloc()
543 static void hdm_dma_free(struct mbo *mbo, u32 size)  in hdm_dma_free()  argument
545 	struct most_dev *mdev = to_mdev(mbo->ifp);  in hdm_dma_free()
547 	usb_free_coherent(mdev->usb_device, size, mbo->virt_address,  in hdm_dma_free()
548 			  mbo->bus_address);  in hdm_dma_free()