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()
174 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_get_substream()  local
175 	struct device *device = &rt->chip->dev->dev;  in hiface_pcm_get_substream()
178 		return &rt->playback;  in hiface_pcm_get_substream()
185 static void hiface_pcm_stream_stop(struct pcm_runtime *rt)  in hiface_pcm_stream_stop()  argument
189 	if (rt->stream_state != STREAM_DISABLED) {  in hiface_pcm_stream_stop()
190 		rt->stream_state = STREAM_STOPPING;  in hiface_pcm_stream_stop()
194 					&rt->out_urbs[i].submitted, 100);  in hiface_pcm_stream_stop()
197 					&rt->out_urbs[i].submitted);  in hiface_pcm_stream_stop()
198 			usb_kill_urb(&rt->out_urbs[i].instance);  in hiface_pcm_stream_stop()
201 		rt->stream_state = STREAM_DISABLED;  in hiface_pcm_stream_stop()
206 static int hiface_pcm_stream_start(struct pcm_runtime *rt)  in hiface_pcm_stream_start()  argument
211 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_stream_start()
214 		rt->panic = false;  in hiface_pcm_stream_start()
217 		rt->stream_state = STREAM_STARTING;  in hiface_pcm_stream_start()
219 			memset(rt->out_urbs[i].buffer, 0, PCM_PACKET_SIZE);  in hiface_pcm_stream_start()
220 			usb_anchor_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
221 				       &rt->out_urbs[i].submitted);  in hiface_pcm_stream_start()
222 			ret = usb_submit_urb(&rt->out_urbs[i].instance,  in hiface_pcm_stream_start()
225 				hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
231 		wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond,  in hiface_pcm_stream_start()
233 		if (rt->stream_wait_cond) {  in hiface_pcm_stream_start()
234 			struct device *device = &rt->chip->dev->dev;  in hiface_pcm_stream_start()
237 			rt->stream_state = STREAM_RUNNING;  in hiface_pcm_stream_start()
239 			hiface_pcm_stream_stop(rt);  in hiface_pcm_stream_start()
307 	struct pcm_runtime *rt = out_urb->chip->pcm;  in hiface_pcm_out_urb_handler()  local
313 	if (rt->panic || rt->stream_state == STREAM_STOPPING)  in hiface_pcm_out_urb_handler()
323 	if (rt->stream_state == STREAM_STARTING) {  in hiface_pcm_out_urb_handler()
324 		rt->stream_wait_cond = true;  in hiface_pcm_out_urb_handler()
325 		wake_up(&rt->stream_wait_queue);  in hiface_pcm_out_urb_handler()
329 	sub = &rt->playback;  in hiface_pcm_out_urb_handler()
348 	rt->panic = true;  in hiface_pcm_out_urb_handler()
353 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_open()  local
358 	if (rt->panic)  in hiface_pcm_open()
361 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_open()
365 		sub = &rt->playback;  in hiface_pcm_open()
368 		struct device *device = &rt->chip->dev->dev;  in hiface_pcm_open()
369 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
374 	if (rt->extra_freq) {  in hiface_pcm_open()
383 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
390 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_open()
396 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_close()  local
400 	if (rt->panic)  in hiface_pcm_close()
403 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_close()
405 		hiface_pcm_stream_stop(rt);  in hiface_pcm_close()
414 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_close()
432 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_prepare()  local
437 	if (rt->panic)  in hiface_pcm_prepare()
442 	mutex_lock(&rt->stream_mutex);  in hiface_pcm_prepare()
444 	hiface_pcm_stream_stop(rt);  in hiface_pcm_prepare()
449 	if (rt->stream_state == STREAM_DISABLED) {  in hiface_pcm_prepare()
451 		ret = hiface_pcm_set_rate(rt, alsa_rt->rate);  in hiface_pcm_prepare()
453 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
456 		ret = hiface_pcm_stream_start(rt);  in hiface_pcm_prepare()
458 			mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
462 	mutex_unlock(&rt->stream_mutex);  in hiface_pcm_prepare()
469 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_trigger()  local
471 	if (rt->panic)  in hiface_pcm_trigger()
499 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);  in hiface_pcm_pointer()  local
503 	if (rt->panic || !sub)  in hiface_pcm_pointer()
548 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_abort()  local
550 	if (rt) {  in hiface_pcm_abort()
551 		rt->panic = true;  in hiface_pcm_abort()
553 		mutex_lock(&rt->stream_mutex);  in hiface_pcm_abort()
554 		hiface_pcm_stream_stop(rt);  in hiface_pcm_abort()
555 		mutex_unlock(&rt->stream_mutex);  in hiface_pcm_abort()
561 	struct pcm_runtime *rt = chip->pcm;  in hiface_pcm_destroy()  local
565 		kfree(rt->out_urbs[i].buffer);  in hiface_pcm_destroy()
573 	struct pcm_runtime *rt = pcm->private_data;  in hiface_pcm_free()  local
575 	if (rt)  in hiface_pcm_free()
576 		hiface_pcm_destroy(rt->chip);  in hiface_pcm_free()
584 	struct pcm_runtime *rt;  in hiface_pcm_init()  local
586 	rt = kzalloc(sizeof(*rt), GFP_KERNEL);  in hiface_pcm_init()
587 	if (!rt)  in hiface_pcm_init()
590 	rt->chip = chip;  in hiface_pcm_init()
591 	rt->stream_state = STREAM_DISABLED;  in hiface_pcm_init()
593 		rt->extra_freq = 1;  in hiface_pcm_init()
595 	init_waitqueue_head(&rt->stream_wait_queue);  in hiface_pcm_init()
596 	mutex_init(&rt->stream_mutex);  in hiface_pcm_init()
597 	spin_lock_init(&rt->playback.lock);  in hiface_pcm_init()
600 		ret = hiface_pcm_init_urb(&rt->out_urbs[i], chip, OUT_EP,  in hiface_pcm_init()
612 	pcm->private_data = rt;  in hiface_pcm_init()
618 	rt->instance = pcm;  in hiface_pcm_init()
620 	chip->pcm = rt;  in hiface_pcm_init()
625 		kfree(rt->out_urbs[i].buffer);  in hiface_pcm_init()
626 	kfree(rt);  in hiface_pcm_init()