firewire/tascam/tascam-pcm.c

10 static int pcm_init_hw_params(struct snd_tscm *tscm,
20 		stream = &tscm->tx_stream;
21 		pcm_channels = tscm->spec->pcm_capture_analog_channels;
24 		stream = &tscm->rx_stream;
25 		pcm_channels = tscm->spec->pcm_playback_analog_channels;
28 	if (tscm->spec->has_adat)
30 	if (tscm->spec->has_spdif)
45 	struct snd_tscm *tscm = substream->private_data;
46 	struct amdtp_domain *d = &tscm->domain;
50 	err = snd_tscm_stream_lock_try(tscm);
54 	err = pcm_init_hw_params(tscm, substream);
58 	err = snd_tscm_stream_get_clock(tscm, &clock);
62 	mutex_lock(&tscm->mutex);
67 	if (clock != SND_TSCM_CLOCK_INTERNAL || tscm->substreams_counter > 0) {
72 		err = snd_tscm_stream_get_rate(tscm, &rate);
74 			mutex_unlock(&tscm->mutex);
84 			mutex_unlock(&tscm->mutex);
92 			mutex_unlock(&tscm->mutex);
97 	mutex_unlock(&tscm->mutex);
103 	snd_tscm_stream_lock_release(tscm);
109 	struct snd_tscm *tscm = substream->private_data;
111 	snd_tscm_stream_lock_release(tscm);
119 	struct snd_tscm *tscm = substream->private_data;
127 		mutex_lock(&tscm->mutex);
128 		err = snd_tscm_stream_reserve_duplex(tscm, rate,
131 			++tscm->substreams_counter;
132 		mutex_unlock(&tscm->mutex);
140 	struct snd_tscm *tscm = substream->private_data;
142 	mutex_lock(&tscm->mutex);
145 		--tscm->substreams_counter;
147 	snd_tscm_stream_stop_duplex(tscm);
149 	mutex_unlock(&tscm->mutex);
156 	struct snd_tscm *tscm = substream->private_data;
160 	mutex_lock(&tscm->mutex);
162 	err = snd_tscm_stream_start_duplex(tscm, runtime->rate);
164 		amdtp_stream_pcm_prepare(&tscm->tx_stream);
166 	mutex_unlock(&tscm->mutex);
173 	struct snd_tscm *tscm = substream->private_data;
177 	mutex_lock(&tscm->mutex);
179 	err = snd_tscm_stream_start_duplex(tscm, runtime->rate);
181 		amdtp_stream_pcm_prepare(&tscm->rx_stream);
183 	mutex_unlock(&tscm->mutex);
190 	struct snd_tscm *tscm = substream->private_data;
194 		amdtp_stream_pcm_trigger(&tscm->tx_stream, substream);
197 		amdtp_stream_pcm_trigger(&tscm->tx_stream, NULL);
208 	struct snd_tscm *tscm = substream->private_data;
212 		amdtp_stream_pcm_trigger(&tscm->rx_stream, substream);
215 		amdtp_stream_pcm_trigger(&tscm->rx_stream, NULL);
226 	struct snd_tscm *tscm = sbstrm->private_data;
228 	return amdtp_domain_stream_pcm_pointer(&tscm->domain, &tscm->tx_stream);
233 	struct snd_tscm *tscm = sbstrm->private_data;
235 	return amdtp_domain_stream_pcm_pointer(&tscm->domain, &tscm->rx_stream);
240 	struct snd_tscm *tscm = substream->private_data;
242 	return amdtp_domain_stream_pcm_ack(&tscm->domain, &tscm->tx_stream);
247 	struct snd_tscm *tscm = substream->private_data;
249 	return amdtp_domain_stream_pcm_ack(&tscm->domain, &tscm->rx_stream);
252 int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
277 	err = snd_pcm_new(tscm->card, tscm->card->driver, 0, 1, 1, &pcm);
281 	pcm->private_data = tscm;
283 		 "%s PCM", tscm->card->shortname);