18 	int err;  in init_stream()  local
30 	err = cmp_connection_init(conn, efw->unit, c_dir, 0);  in init_stream()
31 	if (err < 0)  in init_stream()
34 	err = amdtp_stream_init(stream, efw->unit, s_dir, CIP_BLOCKING);  in init_stream()
35 	if (err < 0) {  in init_stream()
40 	return err;  in init_stream()
61 	int err;  in start_stream()  local
63 	err = snd_efw_get_multiplier_mode(sampling_rate, &mode);  in start_stream()
64 	if (err < 0)  in start_stream()
80 	err = cmp_connection_establish(conn,  in start_stream()
82 	if (err < 0)  in start_stream()
86 	err = amdtp_stream_start(stream,  in start_stream()
89 	if (err < 0) {  in start_stream()
97 		err = -ETIMEDOUT;  in start_stream()
100 	return err;  in start_stream()
125 	int err;  in get_sync_mode()  local
127 	err = snd_efw_command_get_clock_source(efw, &clock_source);  in get_sync_mode()
128 	if (err < 0)  in get_sync_mode()
129 		return err;  in get_sync_mode()
143 	int err;  in check_connection_used_by_others()  local
150 	err = cmp_connection_check_used(conn, &used);  in check_connection_used_by_others()
151 	if ((err >= 0) && used && !amdtp_stream_running(s)) {  in check_connection_used_by_others()
156 		err = -EBUSY;  in check_connection_used_by_others()
159 	return err;  in check_connection_used_by_others()
164 	int err;  in snd_efw_stream_init_duplex()  local
166 	err = init_stream(efw, &efw->tx_stream);  in snd_efw_stream_init_duplex()
167 	if (err < 0)  in snd_efw_stream_init_duplex()
191 	err = init_stream(efw, &efw->rx_stream);  in snd_efw_stream_init_duplex()
192 	if (err < 0) {  in snd_efw_stream_init_duplex()
198 	err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883);  in snd_efw_stream_init_duplex()
199 	if (err < 0) {  in snd_efw_stream_init_duplex()
204 	return err;  in snd_efw_stream_init_duplex()
213 	int err = 0;  in snd_efw_stream_start_duplex()  local
222 	err = get_sync_mode(efw, &sync_mode);  in snd_efw_stream_start_duplex()
223 	if (err < 0)  in snd_efw_stream_start_duplex()
239 	err = check_connection_used_by_others(efw, master);  in snd_efw_stream_start_duplex()
240 	if (err < 0)  in snd_efw_stream_start_duplex()
250 	err = snd_efw_command_get_sampling_rate(efw, &curr_rate);  in snd_efw_stream_start_duplex()
251 	if (err < 0)  in snd_efw_stream_start_duplex()
265 		err = snd_efw_command_set_sampling_rate(efw, rate);  in snd_efw_stream_start_duplex()
266 		if (err < 0)  in snd_efw_stream_start_duplex()
269 		err = start_stream(efw, master, rate);  in snd_efw_stream_start_duplex()
270 		if (err < 0) {  in snd_efw_stream_start_duplex()
272 				"fail to start AMDTP master stream:%d\n", err);  in snd_efw_stream_start_duplex()
279 		err = start_stream(efw, slave, rate);  in snd_efw_stream_start_duplex()
280 		if (err < 0) {  in snd_efw_stream_start_duplex()
282 				"fail to start AMDTP slave stream:%d\n", err);  in snd_efw_stream_start_duplex()
288 	return err;  in snd_efw_stream_start_duplex()
348 	int err;  in snd_efw_stream_lock_try()  local
354 		err = -EBUSY;  in snd_efw_stream_lock_try()
361 	err = 0;  in snd_efw_stream_lock_try()
364 	return err;  in snd_efw_stream_lock_try()