33 int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate,  in snd_dice_stream_get_rate_mode()  argument
49 		if (!(dice->clock_caps & BIT(i)))  in snd_dice_stream_get_rate_mode()
65 static int ensure_phase_lock(struct snd_dice *dice, unsigned int rate)  in ensure_phase_lock()  argument
72 	err = snd_dice_transaction_read_global(dice, GLOBAL_CLOCK_SELECT,  in ensure_phase_lock()
88 	if (completion_done(&dice->clock_accepted))  in ensure_phase_lock()
89 		reinit_completion(&dice->clock_accepted);  in ensure_phase_lock()
92 	err = snd_dice_transaction_write_global(dice, GLOBAL_CLOCK_SELECT,  in ensure_phase_lock()
97 	if (wait_for_completion_timeout(&dice->clock_accepted,  in ensure_phase_lock()
104 		err = snd_dice_transaction_read_global(dice, GLOBAL_STATUS,  in ensure_phase_lock()
115 static int get_register_params(struct snd_dice *dice,  in get_register_params()  argument
122 	err = snd_dice_transaction_read_tx(dice, TX_NUMBER, reg, sizeof(reg));  in get_register_params()
129 	err = snd_dice_transaction_read_rx(dice, RX_NUMBER, reg, sizeof(reg));  in get_register_params()
139 static void release_resources(struct snd_dice *dice)  in release_resources()  argument
144 		if (amdtp_stream_running(&dice->tx_stream[i])) {  in release_resources()
145 			amdtp_stream_pcm_abort(&dice->tx_stream[i]);  in release_resources()
146 			amdtp_stream_stop(&dice->tx_stream[i]);  in release_resources()
148 		if (amdtp_stream_running(&dice->rx_stream[i])) {  in release_resources()
149 			amdtp_stream_pcm_abort(&dice->rx_stream[i]);  in release_resources()
150 			amdtp_stream_stop(&dice->rx_stream[i]);  in release_resources()
153 		fw_iso_resources_free(&dice->tx_resources[i]);  in release_resources()
154 		fw_iso_resources_free(&dice->rx_resources[i]);  in release_resources()
158 static void stop_streams(struct snd_dice *dice, enum amdtp_stream_direction dir,  in stop_streams()  argument
167 			snd_dice_transaction_write_tx(dice,  in stop_streams()
171 			snd_dice_transaction_write_rx(dice,  in stop_streams()
178 static int keep_resources(struct snd_dice *dice,  in keep_resources()  argument
190 		stream = &dice->tx_stream[index];  in keep_resources()
191 		resources = &dice->tx_resources[index];  in keep_resources()
193 		stream = &dice->rx_stream[index];  in keep_resources()
194 		resources = &dice->rx_resources[index];  in keep_resources()
230 				fw_parent_device(dice->unit)->max_speed);  in keep_resources()
233 static int start_streams(struct snd_dice *dice, enum amdtp_stream_direction dir,  in start_streams()  argument
241 	struct fw_device *fw_dev = fw_parent_device(dice->unit);  in start_streams()
245 		streams = dice->tx_stream;  in start_streams()
246 		resources = dice->tx_resources;  in start_streams()
248 		streams = dice->rx_stream;  in start_streams()
249 		resources = dice->rx_resources;  in start_streams()
252 	err = snd_dice_stream_get_rate_mode(dice, rate, &mode);  in start_streams()
261 			pcm_cache = dice->tx_pcm_chs[i][mode];  in start_streams()
262 			midi_cache = dice->tx_midi_ports[i];  in start_streams()
263 			err = snd_dice_transaction_read_tx(dice,  in start_streams()
267 			pcm_cache = dice->rx_pcm_chs[i][mode];  in start_streams()
268 			midi_cache = dice->rx_midi_ports[i];  in start_streams()
269 			err = snd_dice_transaction_read_rx(dice,  in start_streams()
280 			dev_info(&dice->unit->device,  in start_streams()
286 		err = keep_resources(dice, dir, i, rate, pcm_chs, midi_ports);  in start_streams()
292 			err = snd_dice_transaction_write_tx(dice,  in start_streams()
296 			err = snd_dice_transaction_write_rx(dice,  in start_streams()
305 			err = snd_dice_transaction_write_tx(dice,  in start_streams()
321 static int start_duplex_streams(struct snd_dice *dice, unsigned int rate)  in start_duplex_streams()  argument
327 	err = get_register_params(dice, &tx_params, &rx_params);  in start_duplex_streams()
332 	stop_streams(dice, AMDTP_IN_STREAM, &tx_params);  in start_duplex_streams()
333 	stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);  in start_duplex_streams()
334 	snd_dice_transaction_clear_enable(dice);  in start_duplex_streams()
335 	release_resources(dice);  in start_duplex_streams()
337 	err = ensure_phase_lock(dice, rate);  in start_duplex_streams()
339 		dev_err(&dice->unit->device, "fail to ensure phase lock\n");  in start_duplex_streams()
344 	err = get_register_params(dice, &tx_params, &rx_params);  in start_duplex_streams()
349 	err = start_streams(dice, AMDTP_IN_STREAM, rate, &tx_params);  in start_duplex_streams()
352 	err = start_streams(dice, AMDTP_OUT_STREAM, rate, &rx_params);  in start_duplex_streams()
356 	err = snd_dice_transaction_set_enable(dice);  in start_duplex_streams()
358 		dev_err(&dice->unit->device, "fail to enable interface\n");  in start_duplex_streams()
364 		    !amdtp_stream_wait_callback(&dice->tx_stream[i],  in start_duplex_streams()
367 		     !amdtp_stream_wait_callback(&dice->rx_stream[i],  in start_duplex_streams()
376 	stop_streams(dice, AMDTP_IN_STREAM, &tx_params);  in start_duplex_streams()
377 	stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);  in start_duplex_streams()
378 	snd_dice_transaction_clear_enable(dice);  in start_duplex_streams()
379 	release_resources(dice);  in start_duplex_streams()
388 int snd_dice_stream_start_duplex(struct snd_dice *dice, unsigned int rate)  in snd_dice_stream_start_duplex()  argument
395 	if (dice->substreams_counter == 0)  in snd_dice_stream_start_duplex()
399 	err = snd_dice_transaction_get_rate(dice, &curr_rate);  in snd_dice_stream_start_duplex()
401 		dev_err(&dice->unit->device,  in snd_dice_stream_start_duplex()
412 		if (amdtp_streaming_error(&dice->tx_stream[i]))  in snd_dice_stream_start_duplex()
414 		if (amdtp_streaming_error(&dice->rx_stream[i]))  in snd_dice_stream_start_duplex()
421 	err = snd_dice_stream_get_rate_mode(dice, rate, &mode);  in snd_dice_stream_start_duplex()
425 		if (dice->tx_pcm_chs[i][mode] > 0 &&  in snd_dice_stream_start_duplex()
426 		    !amdtp_stream_running(&dice->tx_stream[i]))  in snd_dice_stream_start_duplex()
428 		if (dice->rx_pcm_chs[i][mode] > 0 &&  in snd_dice_stream_start_duplex()
429 		    !amdtp_stream_running(&dice->rx_stream[i]))  in snd_dice_stream_start_duplex()
437 	return start_duplex_streams(dice, rate);  in snd_dice_stream_start_duplex()
445 void snd_dice_stream_stop_duplex(struct snd_dice *dice)  in snd_dice_stream_stop_duplex()  argument
449 	if (dice->substreams_counter > 0)  in snd_dice_stream_stop_duplex()
452 	snd_dice_transaction_clear_enable(dice);  in snd_dice_stream_stop_duplex()
454 	if (get_register_params(dice, &tx_params, &rx_params) == 0) {  in snd_dice_stream_stop_duplex()
455 		stop_streams(dice, AMDTP_IN_STREAM, &tx_params);  in snd_dice_stream_stop_duplex()
456 		stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);  in snd_dice_stream_stop_duplex()
459 	release_resources(dice);  in snd_dice_stream_stop_duplex()
462 static int init_stream(struct snd_dice *dice, enum amdtp_stream_direction dir,  in init_stream()  argument
470 		stream = &dice->tx_stream[index];  in init_stream()
471 		resources = &dice->tx_resources[index];  in init_stream()
473 		stream = &dice->rx_stream[index];  in init_stream()
474 		resources = &dice->rx_resources[index];  in init_stream()
477 	err = fw_iso_resources_init(resources, dice->unit);  in init_stream()
482 	err = amdtp_am824_init(stream, dice->unit, dir, CIP_BLOCKING);  in init_stream()
495 static void destroy_stream(struct snd_dice *dice,  in destroy_stream()  argument
503 		stream = &dice->tx_stream[index];  in destroy_stream()
504 		resources = &dice->tx_resources[index];  in destroy_stream()
506 		stream = &dice->rx_stream[index];  in destroy_stream()
507 		resources = &dice->rx_resources[index];  in destroy_stream()
514 int snd_dice_stream_init_duplex(struct snd_dice *dice)  in snd_dice_stream_init_duplex()  argument
519 		err = init_stream(dice, AMDTP_IN_STREAM, i);  in snd_dice_stream_init_duplex()
522 				destroy_stream(dice, AMDTP_IN_STREAM, i);  in snd_dice_stream_init_duplex()
528 		err = init_stream(dice, AMDTP_OUT_STREAM, i);  in snd_dice_stream_init_duplex()
531 				destroy_stream(dice, AMDTP_OUT_STREAM, i);  in snd_dice_stream_init_duplex()
533 				destroy_stream(dice, AMDTP_IN_STREAM, i);  in snd_dice_stream_init_duplex()
541 void snd_dice_stream_destroy_duplex(struct snd_dice *dice)  in snd_dice_stream_destroy_duplex()  argument
546 		destroy_stream(dice, AMDTP_IN_STREAM, i);  in snd_dice_stream_destroy_duplex()
547 		destroy_stream(dice, AMDTP_OUT_STREAM, i);  in snd_dice_stream_destroy_duplex()
551 void snd_dice_stream_update_duplex(struct snd_dice *dice)  in snd_dice_stream_update_duplex()  argument
563 	dice->global_enabled = false;  in snd_dice_stream_update_duplex()
565 	if (get_register_params(dice, &tx_params, &rx_params) == 0) {  in snd_dice_stream_update_duplex()
566 		stop_streams(dice, AMDTP_IN_STREAM, &tx_params);  in snd_dice_stream_update_duplex()
567 		stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);  in snd_dice_stream_update_duplex()
571 int snd_dice_stream_detect_current_formats(struct snd_dice *dice)  in snd_dice_stream_detect_current_formats()  argument
581 	err = snd_dice_detect_extension_formats(dice);  in snd_dice_stream_detect_current_formats()
589 	err = snd_dice_transaction_get_rate(dice, &rate);  in snd_dice_stream_detect_current_formats()
593 	err = snd_dice_stream_get_rate_mode(dice, rate, &mode);  in snd_dice_stream_detect_current_formats()
602 	err = ensure_phase_lock(dice, rate);  in snd_dice_stream_detect_current_formats()
606 	err = get_register_params(dice, &tx_params, &rx_params);  in snd_dice_stream_detect_current_formats()
611 		err = snd_dice_transaction_read_tx(dice,  in snd_dice_stream_detect_current_formats()
616 		dice->tx_pcm_chs[i][mode] = be32_to_cpu(reg[0]);  in snd_dice_stream_detect_current_formats()
617 		dice->tx_midi_ports[i] = max_t(unsigned int,  in snd_dice_stream_detect_current_formats()
618 				be32_to_cpu(reg[1]), dice->tx_midi_ports[i]);  in snd_dice_stream_detect_current_formats()
621 		err = snd_dice_transaction_read_rx(dice,  in snd_dice_stream_detect_current_formats()
626 		dice->rx_pcm_chs[i][mode] = be32_to_cpu(reg[0]);  in snd_dice_stream_detect_current_formats()
627 		dice->rx_midi_ports[i] = max_t(unsigned int,  in snd_dice_stream_detect_current_formats()
628 				be32_to_cpu(reg[1]), dice->rx_midi_ports[i]);  in snd_dice_stream_detect_current_formats()
634 static void dice_lock_changed(struct snd_dice *dice)  in dice_lock_changed()  argument
636 	dice->dev_lock_changed = true;  in dice_lock_changed()
637 	wake_up(&dice->hwdep_wait);  in dice_lock_changed()
640 int snd_dice_stream_lock_try(struct snd_dice *dice)  in snd_dice_stream_lock_try()  argument
644 	spin_lock_irq(&dice->lock);  in snd_dice_stream_lock_try()
646 	if (dice->dev_lock_count < 0) {  in snd_dice_stream_lock_try()
651 	if (dice->dev_lock_count++ == 0)  in snd_dice_stream_lock_try()
652 		dice_lock_changed(dice);  in snd_dice_stream_lock_try()
655 	spin_unlock_irq(&dice->lock);  in snd_dice_stream_lock_try()
659 void snd_dice_stream_lock_release(struct snd_dice *dice)  in snd_dice_stream_lock_release()  argument
661 	spin_lock_irq(&dice->lock);  in snd_dice_stream_lock_release()
663 	if (WARN_ON(dice->dev_lock_count <= 0))  in snd_dice_stream_lock_release()
666 	if (--dice->dev_lock_count == 0)  in snd_dice_stream_lock_release()
667 		dice_lock_changed(dice);  in snd_dice_stream_lock_release()
669 	spin_unlock_irq(&dice->lock);  in snd_dice_stream_lock_release()