14 static int get_clock(struct snd_tscm *tscm, u32 *data)  in get_clock()  argument
19 	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,  in get_clock()
28 static int set_clock(struct snd_tscm *tscm, unsigned int rate,  in set_clock()  argument
35 	err = get_clock(tscm, &data);  in set_clock()
65 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_clock()
76 	return snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_clock()
81 int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate)  in snd_tscm_stream_get_rate()  argument
88 		err = get_clock(tscm, &data);  in snd_tscm_stream_get_rate()
112 int snd_tscm_stream_get_clock(struct snd_tscm *tscm, enum snd_tscm_clock *clock)  in snd_tscm_stream_get_clock()  argument
117 	err = get_clock(tscm, &data);  in snd_tscm_stream_get_clock()
128 static int enable_data_channels(struct snd_tscm *tscm)  in enable_data_channels()  argument
136 	for (i = 0; i < tscm->spec->pcm_capture_analog_channels; ++i)  in enable_data_channels()
138 	if (tscm->spec->has_adat)  in enable_data_channels()
140 	if (tscm->spec->has_spdif)  in enable_data_channels()
144 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in enable_data_channels()
151 	for (i = 0; i < tscm->spec->pcm_playback_analog_channels; ++i)  in enable_data_channels()
153 	if (tscm->spec->has_adat)  in enable_data_channels()
155 	if (tscm->spec->has_spdif)  in enable_data_channels()
159 	return snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in enable_data_channels()
164 static int set_stream_formats(struct snd_tscm *tscm, unsigned int rate)  in set_stream_formats()  argument
171 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_stream_formats()
177 	err = enable_data_channels(tscm);  in set_stream_formats()
181 	return set_clock(tscm, rate, INT_MAX);  in set_stream_formats()
184 static void finish_session(struct snd_tscm *tscm)  in finish_session()  argument
189 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
194 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
200 static int begin_session(struct snd_tscm *tscm)  in begin_session()  argument
206 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
213 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
221 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
229 	return snd_fw_transaction(tscm->unit,  in begin_session()
235 static void release_resources(struct snd_tscm *tscm)  in release_resources()  argument
241 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in release_resources()
245 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in release_resources()
249 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in release_resources()
254 	fw_iso_resources_free(&tscm->tx_resources);  in release_resources()
255 	fw_iso_resources_free(&tscm->rx_resources);  in release_resources()
258 static int keep_resources(struct snd_tscm *tscm, unsigned int rate)  in keep_resources()  argument
264 	err = amdtp_tscm_set_parameters(&tscm->tx_stream, rate);  in keep_resources()
267 	err = fw_iso_resources_allocate(&tscm->tx_resources,  in keep_resources()
268 			amdtp_stream_get_max_payload(&tscm->tx_stream),  in keep_resources()
269 			fw_parent_device(tscm->unit)->max_speed);  in keep_resources()
274 	err = amdtp_tscm_set_parameters(&tscm->rx_stream, rate);  in keep_resources()
277 	err = fw_iso_resources_allocate(&tscm->rx_resources,  in keep_resources()
278 			amdtp_stream_get_max_payload(&tscm->rx_stream),  in keep_resources()
279 			fw_parent_device(tscm->unit)->max_speed);  in keep_resources()
284 	reg = cpu_to_be32(tscm->tx_resources.channel);  in keep_resources()
285 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in keep_resources()
293 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in keep_resources()
300 	reg = cpu_to_be32(tscm->rx_resources.channel);  in keep_resources()
301 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in keep_resources()
309 	release_resources(tscm);  in keep_resources()
313 int snd_tscm_stream_init_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_init_duplex()  argument
319 	err = fw_iso_resources_init(&tscm->rx_resources, tscm->unit);  in snd_tscm_stream_init_duplex()
322 	pcm_channels = tscm->spec->pcm_playback_analog_channels;  in snd_tscm_stream_init_duplex()
323 	if (tscm->spec->has_adat)  in snd_tscm_stream_init_duplex()
325 	if (tscm->spec->has_spdif)  in snd_tscm_stream_init_duplex()
327 	err = amdtp_tscm_init(&tscm->rx_stream, tscm->unit, AMDTP_OUT_STREAM,  in snd_tscm_stream_init_duplex()
333 	err = fw_iso_resources_init(&tscm->tx_resources, tscm->unit);  in snd_tscm_stream_init_duplex()
336 	pcm_channels = tscm->spec->pcm_capture_analog_channels;  in snd_tscm_stream_init_duplex()
337 	if (tscm->spec->has_adat)  in snd_tscm_stream_init_duplex()
339 	if (tscm->spec->has_spdif)  in snd_tscm_stream_init_duplex()
341 	err = amdtp_tscm_init(&tscm->tx_stream, tscm->unit, AMDTP_IN_STREAM,  in snd_tscm_stream_init_duplex()
344 		amdtp_stream_destroy(&tscm->rx_stream);  in snd_tscm_stream_init_duplex()
350 void snd_tscm_stream_update_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_update_duplex()  argument
352 	amdtp_stream_pcm_abort(&tscm->tx_stream);  in snd_tscm_stream_update_duplex()
353 	amdtp_stream_stop(&tscm->tx_stream);  in snd_tscm_stream_update_duplex()
355 	amdtp_stream_pcm_abort(&tscm->rx_stream);  in snd_tscm_stream_update_duplex()
356 	amdtp_stream_stop(&tscm->rx_stream);  in snd_tscm_stream_update_duplex()
363 void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_destroy_duplex()  argument
365 	amdtp_stream_destroy(&tscm->rx_stream);  in snd_tscm_stream_destroy_duplex()
366 	amdtp_stream_destroy(&tscm->tx_stream);  in snd_tscm_stream_destroy_duplex()
368 	fw_iso_resources_destroy(&tscm->rx_resources);  in snd_tscm_stream_destroy_duplex()
369 	fw_iso_resources_destroy(&tscm->tx_resources);  in snd_tscm_stream_destroy_duplex()
372 int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)  in snd_tscm_stream_start_duplex()  argument
377 	if (tscm->substreams_counter == 0)  in snd_tscm_stream_start_duplex()
380 	err = snd_tscm_stream_get_rate(tscm, &curr_rate);  in snd_tscm_stream_start_duplex()
384 	    amdtp_streaming_error(&tscm->tx_stream) ||  in snd_tscm_stream_start_duplex()
385 	    amdtp_streaming_error(&tscm->rx_stream)) {  in snd_tscm_stream_start_duplex()
386 		finish_session(tscm);  in snd_tscm_stream_start_duplex()
388 		amdtp_stream_stop(&tscm->tx_stream);  in snd_tscm_stream_start_duplex()
389 		amdtp_stream_stop(&tscm->rx_stream);  in snd_tscm_stream_start_duplex()
391 		release_resources(tscm);  in snd_tscm_stream_start_duplex()
394 	if (!amdtp_stream_running(&tscm->tx_stream)) {  in snd_tscm_stream_start_duplex()
396 				      &tscm->tx_stream, &tscm->rx_stream);  in snd_tscm_stream_start_duplex()
397 		err = keep_resources(tscm, rate);  in snd_tscm_stream_start_duplex()
401 		err = set_stream_formats(tscm, rate);  in snd_tscm_stream_start_duplex()
405 		err = begin_session(tscm);  in snd_tscm_stream_start_duplex()
409 		err = amdtp_stream_start(&tscm->tx_stream,  in snd_tscm_stream_start_duplex()
410 				tscm->tx_resources.channel,  in snd_tscm_stream_start_duplex()
411 				fw_parent_device(tscm->unit)->max_speed);  in snd_tscm_stream_start_duplex()
415 		if (!amdtp_stream_wait_callback(&tscm->tx_stream,  in snd_tscm_stream_start_duplex()
422 	if (!amdtp_stream_running(&tscm->rx_stream)) {  in snd_tscm_stream_start_duplex()
423 		err = amdtp_stream_start(&tscm->rx_stream,  in snd_tscm_stream_start_duplex()
424 				tscm->rx_resources.channel,  in snd_tscm_stream_start_duplex()
425 				fw_parent_device(tscm->unit)->max_speed);  in snd_tscm_stream_start_duplex()
429 		if (!amdtp_stream_wait_callback(&tscm->rx_stream,  in snd_tscm_stream_start_duplex()
438 	amdtp_stream_stop(&tscm->tx_stream);  in snd_tscm_stream_start_duplex()
439 	amdtp_stream_stop(&tscm->rx_stream);  in snd_tscm_stream_start_duplex()
441 	finish_session(tscm);  in snd_tscm_stream_start_duplex()
442 	release_resources(tscm);  in snd_tscm_stream_start_duplex()
447 void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_stop_duplex()  argument
449 	if (tscm->substreams_counter > 0)  in snd_tscm_stream_stop_duplex()
452 	amdtp_stream_stop(&tscm->tx_stream);  in snd_tscm_stream_stop_duplex()
453 	amdtp_stream_stop(&tscm->rx_stream);  in snd_tscm_stream_stop_duplex()
455 	finish_session(tscm);  in snd_tscm_stream_stop_duplex()
456 	release_resources(tscm);  in snd_tscm_stream_stop_duplex()
459 void snd_tscm_stream_lock_changed(struct snd_tscm *tscm)  in snd_tscm_stream_lock_changed()  argument
461 	tscm->dev_lock_changed = true;  in snd_tscm_stream_lock_changed()
462 	wake_up(&tscm->hwdep_wait);  in snd_tscm_stream_lock_changed()
465 int snd_tscm_stream_lock_try(struct snd_tscm *tscm)  in snd_tscm_stream_lock_try()  argument
469 	spin_lock_irq(&tscm->lock);  in snd_tscm_stream_lock_try()
472 	if (tscm->dev_lock_count < 0) {  in snd_tscm_stream_lock_try()
478 	if (tscm->dev_lock_count++ == 0)  in snd_tscm_stream_lock_try()
479 		snd_tscm_stream_lock_changed(tscm);  in snd_tscm_stream_lock_try()
482 	spin_unlock_irq(&tscm->lock);  in snd_tscm_stream_lock_try()
486 void snd_tscm_stream_lock_release(struct snd_tscm *tscm)  in snd_tscm_stream_lock_release()  argument
488 	spin_lock_irq(&tscm->lock);  in snd_tscm_stream_lock_release()
490 	if (WARN_ON(tscm->dev_lock_count <= 0))  in snd_tscm_stream_lock_release()
492 	if (--tscm->dev_lock_count == 0)  in snd_tscm_stream_lock_release()
493 		snd_tscm_stream_lock_changed(tscm);  in snd_tscm_stream_lock_release()
495 	spin_unlock_irq(&tscm->lock);  in snd_tscm_stream_lock_release()