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_am824_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()
76 	err = amdtp_am824_set_parameters(stream, sampling_rate,  in start_stream()
78 	if (err < 0)  in start_stream()
82 	err = cmp_connection_establish(conn,  in start_stream()
84 	if (err < 0)  in start_stream()
88 	err = amdtp_stream_start(stream,  in start_stream()
91 	if (err < 0) {  in start_stream()
99 		err = -ETIMEDOUT;  in start_stream()
102 	return err;  in start_stream()
128 	int err;  in check_connection_used_by_others()  local
135 	err = cmp_connection_check_used(conn, &used);  in check_connection_used_by_others()
136 	if ((err >= 0) && used && !amdtp_stream_running(s)) {  in check_connection_used_by_others()
141 		err = -EBUSY;  in check_connection_used_by_others()
144 	return err;  in check_connection_used_by_others()
149 	int err;  in snd_efw_stream_init_duplex()  local
151 	err = init_stream(efw, &efw->tx_stream);  in snd_efw_stream_init_duplex()
152 	if (err < 0)  in snd_efw_stream_init_duplex()
176 	err = init_stream(efw, &efw->rx_stream);  in snd_efw_stream_init_duplex()
177 	if (err < 0) {  in snd_efw_stream_init_duplex()
183 	err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883);  in snd_efw_stream_init_duplex()
184 	if (err < 0) {  in snd_efw_stream_init_duplex()
189 	return err;  in snd_efw_stream_init_duplex()
195 	int err = 0;  in snd_efw_stream_start_duplex()  local
205 	err = check_connection_used_by_others(efw, &efw->rx_stream);  in snd_efw_stream_start_duplex()
206 	if (err < 0)  in snd_efw_stream_start_duplex()
216 	err = snd_efw_command_get_sampling_rate(efw, &curr_rate);  in snd_efw_stream_start_duplex()
217 	if (err < 0)  in snd_efw_stream_start_duplex()
228 		err = snd_efw_command_set_sampling_rate(efw, rate);  in snd_efw_stream_start_duplex()
229 		if (err < 0)  in snd_efw_stream_start_duplex()
232 		err = start_stream(efw, &efw->rx_stream, rate);  in snd_efw_stream_start_duplex()
233 		if (err < 0) {  in snd_efw_stream_start_duplex()
235 				"fail to start AMDTP master stream:%d\n", err);  in snd_efw_stream_start_duplex()
243 		err = start_stream(efw, &efw->tx_stream, rate);  in snd_efw_stream_start_duplex()
244 		if (err < 0) {  in snd_efw_stream_start_duplex()
246 				"fail to start AMDTP slave stream:%d\n", err);  in snd_efw_stream_start_duplex()
251 	return err;  in snd_efw_stream_start_duplex()
290 	int err;  in snd_efw_stream_lock_try()  local
296 		err = -EBUSY;  in snd_efw_stream_lock_try()
303 	err = 0;  in snd_efw_stream_lock_try()
306 	return err;  in snd_efw_stream_lock_try()