354 	input->cbuf = 0;  in ddb_input_start()
391 	output->cbuf = 0;  in ddb_output_start()
430 	if (output->cbuf != idx) {  in ddb_output_free()
431 		if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&  in ddb_output_free()
454 		if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&  in ddb_output_write()
460 		if (output->cbuf == idx) {  in ddb_output_write()
474 		if (copy_from_user(output->vbuf[output->cbuf] + output->coff,  in ddb_output_write()
482 			output->cbuf = ((output->cbuf + 1) % output->dma_buf_num);  in ddb_output_write()
484 		ddbwritel((output->cbuf << 11) | (output->coff >> 7),  in ddb_output_write()
504 	if (input->cbuf != idx)  in ddb_input_avail()
519 		if (input->cbuf == idx)  in ddb_input_read()
524 		ret = copy_to_user(buf, input->vbuf[input->cbuf] +  in ddb_input_read()
531 			input->cbuf = (input->cbuf+1) % input->dma_buf_num;  in ddb_input_read()
534 		ddbwritel((input->cbuf << 11) | (input->coff >> 7),  in ddb_input_read()
1006 		while (input->cbuf != ((input->stat >> 11) & 0x1f)  in input_tasklet()
1009 						 input->vbuf[input->cbuf],  in input_tasklet()
1012 			input->cbuf = (input->cbuf + 1) % input->dma_buf_num;  in input_tasklet()
1013 			ddbwritel((input->cbuf << 11),  in input_tasklet()