116 static int hiface_pcm_set_rate(struct pcm_runtime *rt, unsigned int rate)  in hiface_pcm_set_rate()  argument
118 	struct usb_device *device = rt->chip->dev;  in hiface_pcm_set_rate()
178 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_get_substream()  local
179 	struct device *device = &rt->chip->dev->dev;  in hiface_pcm_get_substream()
182 		return &rt->playback;  in hiface_pcm_get_substream()
189 static void hiface_pcm_stream_stop(struct pcm_runtime *rt)  in hiface_pcm_stream_stop()  argument
193 	if (rt->stream_state != STREAM_DISABLED) {  in hiface_pcm_stream_stop()
194 		rt->stream_state = STREAM_STOPPING;  in hiface_pcm_stream_stop()
198 					&rt->out_urbs[i].submitted, 100);  in hiface_pcm_stream_stop()
201 					&rt->out_urbs[i].submitted);  in hiface_pcm_stream_stop()
202 			usb_kill_urb(&rt->out_urbs[i].instance);  in hiface_pcm_stream_stop()
205 		rt->stream_state = STREAM_DISABLED;  in hiface_pcm_stream_stop()
210 static int hiface_pcm_stream_start(struct pcm_runtime *rt)  in hiface_pcm_stream_start()  argument
215 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_stream_start()
218 		rt->panic = false;  in hiface_pcm_stream_start()
221 		rt->stream_state = STREAM_STARTING;  in hiface_pcm_stream_start()
223 			memset(rt->out_urbs[i].buffer, 0, PCM_PACKET_SIZE);  in hiface_pcm_stream_start()
224 			usb_anchor_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
225 				       &rt->out_urbs[i].submitted);  in hiface_pcm_stream_start()
226 			ret = usb_submit_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
229 				hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
235 		wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond,  in hiface_pcm_stream_start()
237 		if (rt->stream_wait_cond) {  in hiface_pcm_stream_start()
238 			struct device *device = &rt->chip->dev->dev;  in hiface_pcm_stream_start()
241 			rt->stream_state = STREAM_RUNNING;  in hiface_pcm_stream_start()
243 			hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
311 	struct pcm_runtime *rt = out_urb->chip->pcm;  in hiface_pcm_out_urb_handler()  local
317 	if (rt->panic || rt->stream_state == STREAM_STOPPING)  in hiface_pcm_out_urb_handler()
327 	if (rt->stream_state == STREAM_STARTING) {  in hiface_pcm_out_urb_handler()
328 		rt->stream_wait_cond = true;  in hiface_pcm_out_urb_handler()
329 		wake_up(&rt->stream_wait_queue);  in hiface_pcm_out_urb_handler()
333 	sub = &rt->playback;  in hiface_pcm_out_urb_handler()
352 	rt->panic = true;  in hiface_pcm_out_urb_handler()
357 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_open()  local
362 	if (rt->panic)  in hiface_pcm_open()
365 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_open()
369 		sub = &rt->playback;  in hiface_pcm_open()
372 		struct device *device = &rt->chip->dev->dev;  in hiface_pcm_open()
373 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
378 	if (rt->extra_freq) {  in hiface_pcm_open()
387 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
394 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
400 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_close()  local
404 	if (rt->panic)  in hiface_pcm_close()
407 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_close()
409 		hiface_pcm_stream_stop(rt);  in hiface_pcm_close()
418 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_close()
436 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_prepare()  local
441 	if (rt->panic)  in hiface_pcm_prepare()
446 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_prepare()
451 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_prepare()
453 		ret = hiface_pcm_set_rate(rt, alsa_rt->rate);  in hiface_pcm_prepare()
455 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
458 		ret = hiface_pcm_stream_start(rt);  in hiface_pcm_prepare()
460 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
464 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
471 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_trigger()  local
473 	if (rt->panic)  in hiface_pcm_trigger()
501 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_pointer()  local
505 	if (rt->panic || !sub)  in hiface_pcm_pointer()
549 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_abort()  local
551 	if (rt) {  in hiface_pcm_abort()
552 		rt->panic = true;  in hiface_pcm_abort()
554 		mutex_lock(&rt->stream_mutex);  in hiface_pcm_abort()
555 		hiface_pcm_stream_stop(rt);  in hiface_pcm_abort()
556 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_abort()
562 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_destroy()  local
566 		kfree(rt->out_urbs[i].buffer);  in hiface_pcm_destroy()
574 	struct pcm_runtime *rt = pcm->private_data;  in hiface_pcm_free()  local
576 	if (rt)  in hiface_pcm_free()
577 		hiface_pcm_destroy(rt->chip);  in hiface_pcm_free()
585 	struct pcm_runtime *rt;  in hiface_pcm_init()  local
587 	rt = kzalloc(sizeof(*rt), GFP_KERNEL);  in hiface_pcm_init()
588 	if (!rt)  in hiface_pcm_init()
591 	rt->chip = chip;  in hiface_pcm_init()
592 	rt->stream_state = STREAM_DISABLED;  in hiface_pcm_init()
594 		rt->extra_freq = 1;  in hiface_pcm_init()
596 	init_waitqueue_head(&rt->stream_wait_queue);  in hiface_pcm_init()
597 	mutex_init(&rt->stream_mutex);  in hiface_pcm_init()
598 	spin_lock_init(&rt->playback.lock);  in hiface_pcm_init()
601 		hiface_pcm_init_urb(&rt->out_urbs[i], chip, OUT_EP,  in hiface_pcm_init()
606 		kfree(rt);  in hiface_pcm_init()
611 	pcm->private_data = rt;  in hiface_pcm_init()
617 	rt->instance = pcm;  in hiface_pcm_init()
619 	chip->pcm = rt;  in hiface_pcm_init()