112 static int hiface_pcm_set_rate(struct pcm_runtime *rt, unsigned int rate)  in hiface_pcm_set_rate()  argument
114 	struct usb_device *device = rt->chip->dev;  in hiface_pcm_set_rate()
172 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_get_substream()  local
173 	struct device *device = &rt->chip->dev->dev;  in hiface_pcm_get_substream()
176 		return &rt->playback;  in hiface_pcm_get_substream()
183 static void hiface_pcm_stream_stop(struct pcm_runtime *rt)  in hiface_pcm_stream_stop()  argument
187 	if (rt->stream_state != STREAM_DISABLED) {  in hiface_pcm_stream_stop()
188 		rt->stream_state = STREAM_STOPPING;  in hiface_pcm_stream_stop()
192 					&rt->out_urbs[i].submitted, 100);  in hiface_pcm_stream_stop()
195 					&rt->out_urbs[i].submitted);  in hiface_pcm_stream_stop()
196 			usb_kill_urb(&rt->out_urbs[i].instance);  in hiface_pcm_stream_stop()
199 		rt->stream_state = STREAM_DISABLED;  in hiface_pcm_stream_stop()
204 static int hiface_pcm_stream_start(struct pcm_runtime *rt)  in hiface_pcm_stream_start()  argument
209 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_stream_start()
212 		rt->panic = false;  in hiface_pcm_stream_start()
215 		rt->stream_state = STREAM_STARTING;  in hiface_pcm_stream_start()
217 			memset(rt->out_urbs[i].buffer, 0, PCM_PACKET_SIZE);  in hiface_pcm_stream_start()
218 			usb_anchor_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
219 				       &rt->out_urbs[i].submitted);  in hiface_pcm_stream_start()
220 			ret = usb_submit_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
223 				hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
229 		wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond,  in hiface_pcm_stream_start()
231 		if (rt->stream_wait_cond) {  in hiface_pcm_stream_start()
232 			struct device *device = &rt->chip->dev->dev;  in hiface_pcm_stream_start()
235 			rt->stream_state = STREAM_RUNNING;  in hiface_pcm_stream_start()
237 			hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
305 	struct pcm_runtime *rt = out_urb->chip->pcm;  in hiface_pcm_out_urb_handler()  local
311 	if (rt->panic || rt->stream_state == STREAM_STOPPING)  in hiface_pcm_out_urb_handler()
321 	if (rt->stream_state == STREAM_STARTING) {  in hiface_pcm_out_urb_handler()
322 		rt->stream_wait_cond = true;  in hiface_pcm_out_urb_handler()
323 		wake_up(&rt->stream_wait_queue);  in hiface_pcm_out_urb_handler()
327 	sub = &rt->playback;  in hiface_pcm_out_urb_handler()
346 	rt->panic = true;  in hiface_pcm_out_urb_handler()
351 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_open()  local
356 	if (rt->panic)  in hiface_pcm_open()
359 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_open()
363 		sub = &rt->playback;  in hiface_pcm_open()
366 		struct device *device = &rt->chip->dev->dev;  in hiface_pcm_open()
367 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
372 	if (rt->extra_freq) {  in hiface_pcm_open()
381 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
388 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
394 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_close()  local
398 	if (rt->panic)  in hiface_pcm_close()
401 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_close()
403 		hiface_pcm_stream_stop(rt);  in hiface_pcm_close()
412 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_close()
418 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_prepare()  local
423 	if (rt->panic)  in hiface_pcm_prepare()
428 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_prepare()
430 	hiface_pcm_stream_stop(rt);  in hiface_pcm_prepare()
435 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_prepare()
437 		ret = hiface_pcm_set_rate(rt, alsa_rt->rate);  in hiface_pcm_prepare()
439 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
442 		ret = hiface_pcm_stream_start(rt);  in hiface_pcm_prepare()
444 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
448 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
455 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_trigger()  local
457 	if (rt->panic)  in hiface_pcm_trigger()
485 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_pointer()  local
489 	if (rt->panic || !sub)  in hiface_pcm_pointer()
530 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_abort()  local
532 	if (rt) {  in hiface_pcm_abort()
533 		rt->panic = true;  in hiface_pcm_abort()
535 		mutex_lock(&rt->stream_mutex);  in hiface_pcm_abort()
536 		hiface_pcm_stream_stop(rt);  in hiface_pcm_abort()
537 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_abort()
543 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_destroy()  local
547 		kfree(rt->out_urbs[i].buffer);  in hiface_pcm_destroy()
555 	struct pcm_runtime *rt = pcm->private_data;  in hiface_pcm_free()  local
557 	if (rt)  in hiface_pcm_free()
558 		hiface_pcm_destroy(rt->chip);  in hiface_pcm_free()
566 	struct pcm_runtime *rt;  in hiface_pcm_init()  local
568 	rt = kzalloc(sizeof(*rt), GFP_KERNEL);  in hiface_pcm_init()
569 	if (!rt)  in hiface_pcm_init()
572 	rt->chip = chip;  in hiface_pcm_init()
573 	rt->stream_state = STREAM_DISABLED;  in hiface_pcm_init()
575 		rt->extra_freq = 1;  in hiface_pcm_init()
577 	init_waitqueue_head(&rt->stream_wait_queue);  in hiface_pcm_init()
578 	mutex_init(&rt->stream_mutex);  in hiface_pcm_init()
579 	spin_lock_init(&rt->playback.lock);  in hiface_pcm_init()
582 		ret = hiface_pcm_init_urb(&rt->out_urbs[i], chip, OUT_EP,  in hiface_pcm_init()
594 	pcm->private_data = rt;  in hiface_pcm_init()
602 	rt->instance = pcm;  in hiface_pcm_init()
604 	chip->pcm = rt;  in hiface_pcm_init()
609 		kfree(rt->out_urbs[i].buffer);  in hiface_pcm_init()
610 	kfree(rt);  in hiface_pcm_init()