200 	struct snd_pcm_runtime *runtime, *cruntime;  in loopback_check_format()  local
210 	runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->  in loopback_check_format()
211 							substream->runtime;  in loopback_check_format()
213 							substream->runtime;  in loopback_check_format()
214 	check = runtime->format != cruntime->format ||  in loopback_check_format()
215 		runtime->rate != cruntime->rate ||  in loopback_check_format()
216 		runtime->channels != cruntime->channels;  in loopback_check_format()
225 		runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->  in loopback_check_format()
226 							substream->runtime;  in loopback_check_format()
229 		if (setup->format != runtime->format) {  in loopback_check_format()
232 			setup->format = runtime->format;  in loopback_check_format()
234 		if (setup->rate != runtime->rate) {  in loopback_check_format()
237 			setup->rate = runtime->rate;  in loopback_check_format()
239 		if (setup->channels != runtime->channels) {  in loopback_check_format()
242 			setup->channels = runtime->channels;  in loopback_check_format()
257 	struct snd_pcm_runtime *runtime = substream->runtime;  in loopback_trigger()  local
258 	struct loopback_pcm *dpcm = runtime->private_data;  in loopback_trigger()
309 				    struct snd_pcm_runtime *runtime)  in params_change_substream()  argument
315 	dst_runtime = dpcm->substream->runtime;  in params_change_substream()
323 	struct snd_pcm_runtime *runtime = substream->runtime;  in params_change()  local
324 	struct loopback_pcm *dpcm = runtime->private_data;  in params_change()
327 	cable->hw.formats = pcm_format_to_bits(runtime->format);  in params_change()
328 	cable->hw.rate_min = runtime->rate;  in params_change()
329 	cable->hw.rate_max = runtime->rate;  in params_change()
330 	cable->hw.channels_min = runtime->channels;  in params_change()
331 	cable->hw.channels_max = runtime->channels;  in params_change()
333 				runtime);  in params_change()
335 				runtime);  in params_change()
340 	struct snd_pcm_runtime *runtime = substream->runtime;  in loopback_prepare()  local
341 	struct loopback_pcm *dpcm = runtime->private_data;  in loopback_prepare()
345 	salign = (snd_pcm_format_width(runtime->format) *  in loopback_prepare()
346 						runtime->channels) / 8;  in loopback_prepare()
347 	bps = salign * runtime->rate;  in loopback_prepare()
352 	dpcm->pcm_buffer_size = frames_to_bytes(runtime, runtime->buffer_size);  in loopback_prepare()
356 		snd_pcm_format_set_silence(runtime->format, runtime->dma_area,  in loopback_prepare()
357 					   runtime->buffer_size * runtime->channels);  in loopback_prepare()
364 	dpcm->pcm_period_size = frames_to_bytes(runtime, runtime->period_size);  in loopback_prepare()
379 	struct snd_pcm_runtime *runtime = dpcm->substream->runtime;  in clear_capture_buf()  local
380 	char *dst = runtime->dma_area;  in clear_capture_buf()
392 		snd_pcm_format_set_silence(runtime->format, dst + dst_off,  in clear_capture_buf()
393 					   bytes_to_frames(runtime, size) *  in clear_capture_buf()
394 					   	runtime->channels);  in clear_capture_buf()
407 	struct snd_pcm_runtime *runtime = play->substream->runtime;  in copy_play_buf()  local
408 	char *src = runtime->dma_area;  in copy_play_buf()
409 	char *dst = capt->substream->runtime->dma_area;  in copy_play_buf()
416 	if (runtime->status->state == SNDRV_PCM_STATE_DRAINING &&  in copy_play_buf()
417 	    snd_pcm_playback_hw_avail(runtime) < runtime->buffer_size) {   in copy_play_buf()
419 		appl_ptr = appl_ptr1 = runtime->control->appl_ptr;  in copy_play_buf()
420 		appl_ptr1 -= appl_ptr1 % runtime->buffer_size;  in copy_play_buf()
423 			appl_ptr1 -= runtime->buffer_size;  in copy_play_buf()
553 	struct snd_pcm_runtime *runtime = substream->runtime;  in loopback_pointer()  local
554 	struct loopback_pcm *dpcm = runtime->private_data;  in loopback_pointer()
561 	return bytes_to_frames(runtime, pos);  in loopback_pointer()
587 static void loopback_runtime_free(struct snd_pcm_runtime *runtime)  in loopback_runtime_free()  argument
589 	struct loopback_pcm *dpcm = runtime->private_data;  in loopback_runtime_free()
602 	struct snd_pcm_runtime *runtime = substream->runtime;  in loopback_hw_free()  local
603 	struct loopback_pcm *dpcm = runtime->private_data;  in loopback_hw_free()
663 	struct snd_pcm_runtime *runtime = substream->runtime;  in loopback_open()  local
696 	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);  in loopback_open()
701 	err = snd_pcm_hw_rule_add(runtime, 0,  in loopback_open()
703 				  rule_format, &runtime->hw,  in loopback_open()
707 	err = snd_pcm_hw_rule_add(runtime, 0,  in loopback_open()
709 				  rule_rate, &runtime->hw,  in loopback_open()
713 	err = snd_pcm_hw_rule_add(runtime, 0,  in loopback_open()
715 				  rule_channels, &runtime->hw,  in loopback_open()
720 	runtime->private_data = dpcm;  in loopback_open()
721 	runtime->private_free = loopback_runtime_free;  in loopback_open()
723 		runtime->hw = loopback_pcm_hardware;  in loopback_open()
725 		runtime->hw = cable->hw;  in loopback_open()
734 	struct loopback_pcm *dpcm = substream->runtime->private_data;  in loopback_close()