16 static int get_clock(struct snd_tscm *tscm, u32 *data)  in get_clock()  argument
23 		err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,  in get_clock()
44 static int set_clock(struct snd_tscm *tscm, unsigned int rate,  in set_clock()  argument
51 	err = get_clock(tscm, &data);  in set_clock()
81 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_clock()
92 	return snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_clock()
97 int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate)  in snd_tscm_stream_get_rate()  argument
102 	err = get_clock(tscm, &data);  in snd_tscm_stream_get_rate()
125 int snd_tscm_stream_get_clock(struct snd_tscm *tscm, enum snd_tscm_clock *clock)  in snd_tscm_stream_get_clock()  argument
130 	err = get_clock(tscm, &data);  in snd_tscm_stream_get_clock()
141 static int enable_data_channels(struct snd_tscm *tscm)  in enable_data_channels()  argument
149 	for (i = 0; i < tscm->spec->pcm_capture_analog_channels; ++i)  in enable_data_channels()
151 	if (tscm->spec->has_adat)  in enable_data_channels()
153 	if (tscm->spec->has_spdif)  in enable_data_channels()
157 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in enable_data_channels()
164 	for (i = 0; i < tscm->spec->pcm_playback_analog_channels; ++i)  in enable_data_channels()
166 	if (tscm->spec->has_adat)  in enable_data_channels()
168 	if (tscm->spec->has_spdif)  in enable_data_channels()
172 	return snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in enable_data_channels()
177 static int set_stream_formats(struct snd_tscm *tscm, unsigned int rate)  in set_stream_formats()  argument
184 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in set_stream_formats()
190 	return enable_data_channels(tscm);  in set_stream_formats()
193 static void finish_session(struct snd_tscm *tscm)  in finish_session()  argument
198 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
203 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
209 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
213 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
217 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in finish_session()
222 static int begin_session(struct snd_tscm *tscm)  in begin_session()  argument
228 	reg = cpu_to_be32(tscm->tx_resources.channel);  in begin_session()
229 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
237 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
244 	reg = cpu_to_be32(tscm->rx_resources.channel);  in begin_session()
245 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
252 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
259 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
267 	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,  in begin_session()
275 	return snd_fw_transaction(tscm->unit,  in begin_session()
281 static int keep_resources(struct snd_tscm *tscm, unsigned int rate,  in keep_resources()  argument
287 	if (stream == &tscm->tx_stream)  in keep_resources()
288 		resources = &tscm->tx_resources;  in keep_resources()
290 		resources = &tscm->rx_resources;  in keep_resources()
298 				fw_parent_device(tscm->unit)->max_speed);  in keep_resources()
301 static int init_stream(struct snd_tscm *tscm, struct amdtp_stream *s)  in init_stream()  argument
308 	if (s == &tscm->tx_stream) {  in init_stream()
309 		resources = &tscm->tx_resources;  in init_stream()
311 		pcm_channels = tscm->spec->pcm_capture_analog_channels;  in init_stream()
313 		resources = &tscm->rx_resources;  in init_stream()
315 		pcm_channels = tscm->spec->pcm_playback_analog_channels;  in init_stream()
318 	if (tscm->spec->has_adat)  in init_stream()
320 	if (tscm->spec->has_spdif)  in init_stream()
323 	err = fw_iso_resources_init(resources, tscm->unit);  in init_stream()
327 	err = amdtp_tscm_init(s, tscm->unit, dir, pcm_channels);  in init_stream()
334 static void destroy_stream(struct snd_tscm *tscm, struct amdtp_stream *s)  in destroy_stream()  argument
338 	if (s == &tscm->tx_stream)  in destroy_stream()
339 		fw_iso_resources_destroy(&tscm->tx_resources);  in destroy_stream()
341 		fw_iso_resources_destroy(&tscm->rx_resources);  in destroy_stream()
344 int snd_tscm_stream_init_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_init_duplex()  argument
348 	err = init_stream(tscm, &tscm->tx_stream);  in snd_tscm_stream_init_duplex()
352 	err = init_stream(tscm, &tscm->rx_stream);  in snd_tscm_stream_init_duplex()
354 		destroy_stream(tscm, &tscm->tx_stream);  in snd_tscm_stream_init_duplex()
358 	err = amdtp_domain_init(&tscm->domain);  in snd_tscm_stream_init_duplex()
360 		destroy_stream(tscm, &tscm->tx_stream);  in snd_tscm_stream_init_duplex()
361 		destroy_stream(tscm, &tscm->rx_stream);  in snd_tscm_stream_init_duplex()
368 void snd_tscm_stream_update_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_update_duplex()  argument
370 	amdtp_domain_stop(&tscm->domain);  in snd_tscm_stream_update_duplex()
372 	amdtp_stream_pcm_abort(&tscm->tx_stream);  in snd_tscm_stream_update_duplex()
373 	amdtp_stream_pcm_abort(&tscm->rx_stream);  in snd_tscm_stream_update_duplex()
378 void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_destroy_duplex()  argument
380 	amdtp_domain_destroy(&tscm->domain);  in snd_tscm_stream_destroy_duplex()
382 	destroy_stream(tscm, &tscm->rx_stream);  in snd_tscm_stream_destroy_duplex()
383 	destroy_stream(tscm, &tscm->tx_stream);  in snd_tscm_stream_destroy_duplex()
386 int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate,  in snd_tscm_stream_reserve_duplex()  argument
393 	err = snd_tscm_stream_get_rate(tscm, &curr_rate);  in snd_tscm_stream_reserve_duplex()
397 	if (tscm->substreams_counter == 0 || rate != curr_rate) {  in snd_tscm_stream_reserve_duplex()
398 		amdtp_domain_stop(&tscm->domain);  in snd_tscm_stream_reserve_duplex()
400 		finish_session(tscm);  in snd_tscm_stream_reserve_duplex()
402 		fw_iso_resources_free(&tscm->tx_resources);  in snd_tscm_stream_reserve_duplex()
403 		fw_iso_resources_free(&tscm->rx_resources);  in snd_tscm_stream_reserve_duplex()
405 		err = set_clock(tscm, rate, INT_MAX);  in snd_tscm_stream_reserve_duplex()
409 		err = keep_resources(tscm, rate, &tscm->tx_stream);  in snd_tscm_stream_reserve_duplex()
413 		err = keep_resources(tscm, rate, &tscm->rx_stream);  in snd_tscm_stream_reserve_duplex()
415 			fw_iso_resources_free(&tscm->tx_resources);  in snd_tscm_stream_reserve_duplex()
419 		err = amdtp_domain_set_events_per_period(&tscm->domain,  in snd_tscm_stream_reserve_duplex()
422 			fw_iso_resources_free(&tscm->tx_resources);  in snd_tscm_stream_reserve_duplex()
423 			fw_iso_resources_free(&tscm->rx_resources);  in snd_tscm_stream_reserve_duplex()
427 		tscm->need_long_tx_init_skip = (rate != curr_rate);  in snd_tscm_stream_reserve_duplex()
433 int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)  in snd_tscm_stream_start_duplex()  argument
435 	unsigned int generation = tscm->rx_resources.generation;  in snd_tscm_stream_start_duplex()
438 	if (tscm->substreams_counter == 0)  in snd_tscm_stream_start_duplex()
441 	if (amdtp_streaming_error(&tscm->rx_stream) ||  in snd_tscm_stream_start_duplex()
442 	    amdtp_streaming_error(&tscm->tx_stream)) {  in snd_tscm_stream_start_duplex()
443 		amdtp_domain_stop(&tscm->domain);  in snd_tscm_stream_start_duplex()
444 		finish_session(tscm);  in snd_tscm_stream_start_duplex()
447 	if (generation != fw_parent_device(tscm->unit)->card->generation) {  in snd_tscm_stream_start_duplex()
448 		err = fw_iso_resources_update(&tscm->tx_resources);  in snd_tscm_stream_start_duplex()
452 		err = fw_iso_resources_update(&tscm->rx_resources);  in snd_tscm_stream_start_duplex()
457 	if (!amdtp_stream_running(&tscm->rx_stream)) {  in snd_tscm_stream_start_duplex()
458 		int spd = fw_parent_device(tscm->unit)->max_speed;  in snd_tscm_stream_start_duplex()
461 		err = set_stream_formats(tscm, rate);  in snd_tscm_stream_start_duplex()
465 		err = begin_session(tscm);  in snd_tscm_stream_start_duplex()
469 		err = amdtp_domain_add_stream(&tscm->domain, &tscm->rx_stream,  in snd_tscm_stream_start_duplex()
470 					      tscm->rx_resources.channel, spd);  in snd_tscm_stream_start_duplex()
474 		err = amdtp_domain_add_stream(&tscm->domain, &tscm->tx_stream,  in snd_tscm_stream_start_duplex()
475 					      tscm->tx_resources.channel, spd);  in snd_tscm_stream_start_duplex()
479 		if (tscm->need_long_tx_init_skip)  in snd_tscm_stream_start_duplex()
491 		err = amdtp_domain_start(&tscm->domain, tx_init_skip_cycles, true, true);  in snd_tscm_stream_start_duplex()
495 		if (!amdtp_domain_wait_ready(&tscm->domain, READY_TIMEOUT_MS)) {  in snd_tscm_stream_start_duplex()
503 	amdtp_domain_stop(&tscm->domain);  in snd_tscm_stream_start_duplex()
504 	finish_session(tscm);  in snd_tscm_stream_start_duplex()
509 void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm)  in snd_tscm_stream_stop_duplex()  argument
511 	if (tscm->substreams_counter == 0) {  in snd_tscm_stream_stop_duplex()
512 		amdtp_domain_stop(&tscm->domain);  in snd_tscm_stream_stop_duplex()
513 		finish_session(tscm);  in snd_tscm_stream_stop_duplex()
515 		fw_iso_resources_free(&tscm->tx_resources);  in snd_tscm_stream_stop_duplex()
516 		fw_iso_resources_free(&tscm->rx_resources);  in snd_tscm_stream_stop_duplex()
518 		tscm->need_long_tx_init_skip = false;  in snd_tscm_stream_stop_duplex()
522 void snd_tscm_stream_lock_changed(struct snd_tscm *tscm)  in snd_tscm_stream_lock_changed()  argument
524 	tscm->dev_lock_changed = true;  in snd_tscm_stream_lock_changed()
525 	wake_up(&tscm->hwdep_wait);  in snd_tscm_stream_lock_changed()
528 int snd_tscm_stream_lock_try(struct snd_tscm *tscm)  in snd_tscm_stream_lock_try()  argument
532 	spin_lock_irq(&tscm->lock);  in snd_tscm_stream_lock_try()
535 	if (tscm->dev_lock_count < 0) {  in snd_tscm_stream_lock_try()
541 	if (tscm->dev_lock_count++ == 0)  in snd_tscm_stream_lock_try()
542 		snd_tscm_stream_lock_changed(tscm);  in snd_tscm_stream_lock_try()
545 	spin_unlock_irq(&tscm->lock);  in snd_tscm_stream_lock_try()
549 void snd_tscm_stream_lock_release(struct snd_tscm *tscm)  in snd_tscm_stream_lock_release()  argument
551 	spin_lock_irq(&tscm->lock);  in snd_tscm_stream_lock_release()
553 	if (WARN_ON(tscm->dev_lock_count <= 0))  in snd_tscm_stream_lock_release()
555 	if (--tscm->dev_lock_count == 0)  in snd_tscm_stream_lock_release()
556 		snd_tscm_stream_lock_changed(tscm);  in snd_tscm_stream_lock_release()
558 	spin_unlock_irq(&tscm->lock);  in snd_tscm_stream_lock_release()