210 	int substream;  in snd_uart16550_io_loop()  local
213 	substream = uart->prev_in;  in snd_uart16550_io_loop()
228 					substream = c - 1;  in snd_uart16550_io_loop()
234 				   && uart->midi_input[substream])  in snd_uart16550_io_loop()
235 				snd_rawmidi_receive(uart->midi_input[substream],  in snd_uart16550_io_loop()
238 			   uart->midi_input[substream])  in snd_uart16550_io_loop()
239 			snd_rawmidi_receive(uart->midi_input[substream], &c, 1);  in snd_uart16550_io_loop()
248 	uart->prev_in = substream;  in snd_uart16550_io_loop()
515 static int snd_uart16550_input_open(struct snd_rawmidi_substream *substream)  in snd_uart16550_input_open()  argument
518 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_input_open()
524 	uart->midi_input[substream->number] = substream;  in snd_uart16550_input_open()
529 static int snd_uart16550_input_close(struct snd_rawmidi_substream *substream)  in snd_uart16550_input_close()  argument
532 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_input_close()
536 	uart->midi_input[substream->number] = NULL;  in snd_uart16550_input_close()
543 static void snd_uart16550_input_trigger(struct snd_rawmidi_substream *substream,  in snd_uart16550_input_trigger()  argument
547 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_input_trigger()
557 static int snd_uart16550_output_open(struct snd_rawmidi_substream *substream)  in snd_uart16550_output_open()  argument
560 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_output_open()
566 	uart->midi_output[substream->number] = substream;  in snd_uart16550_output_open()
571 static int snd_uart16550_output_close(struct snd_rawmidi_substream *substream)  in snd_uart16550_output_close()  argument
574 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_output_close()
578 	uart->midi_output[substream->number] = NULL;  in snd_uart16550_output_close()
612 				     struct snd_rawmidi_substream *substream,  in snd_uart16550_output_byte()  argument
648 static void snd_uart16550_output_write(struct snd_rawmidi_substream *substream)  in snd_uart16550_output_write()  argument
652 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_output_write()
672 			if (snd_rawmidi_transmit(substream, &midi_byte, 1) != 1)  in snd_uart16550_output_write()
676 			addr_byte = (1 << (substream->number + 4)) | 0x08;  in snd_uart16550_output_write()
679 			addr_byte = (substream->number << 4) | 0x08;  in snd_uart16550_output_write()
684 			snd_uart16550_output_byte(uart, substream, addr_byte);  in snd_uart16550_output_write()
686 			snd_uart16550_output_byte(uart, substream, midi_byte);  in snd_uart16550_output_write()
690 		while (snd_rawmidi_transmit_peek(substream, &midi_byte, 1) == 1) {  in snd_uart16550_output_write()
696 			    (uart->prev_out != substream->number ||  in snd_uart16550_output_write()
706 					uart->prev_out = substream->number;  in snd_uart16550_output_write()
708 					snd_uart16550_output_byte(uart, substream,  in snd_uart16550_output_write()
711 					snd_uart16550_output_byte(uart, substream,  in snd_uart16550_output_write()
717 						snd_uart16550_output_byte(uart, substream, uart->prev_status[uart->prev_out]);  in snd_uart16550_output_write()
724 			if (!snd_uart16550_output_byte(uart, substream, midi_byte) &&  in snd_uart16550_output_write()
732 			snd_rawmidi_transmit_ack( substream, 1 );  in snd_uart16550_output_write()
739 static void snd_uart16550_output_trigger(struct snd_rawmidi_substream *substream,  in snd_uart16550_output_trigger()  argument
743 	struct snd_uart16550 *uart = substream->rmidi->private_data;  in snd_uart16550_output_trigger()
752 		snd_uart16550_output_write(substream);  in snd_uart16550_output_trigger()
865 	struct snd_rawmidi_substream *substream;  in snd_uart16550_substreams()  local
867 	list_for_each_entry(substream, &stream->substreams, list) {  in snd_uart16550_substreams()
868 		sprintf(substream->name, "Serial MIDI %d", substream->number + 1);  in snd_uart16550_substreams()