95 struct loopback {  struct
104 	struct loopback *loopback;  member
155 	return &dpcm->loopback->setup[dpcm->substream->number][device];  in get_setup()
228 		card = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->loopback->card;  in loopback_check_format()
250 	snd_ctl_notify(dpcm->loopback->card,  in loopback_active_notify()
366 	mutex_lock(&dpcm->loopback->cable_lock);  in loopback_prepare()
372 	mutex_unlock(&dpcm->loopback->cable_lock);  in loopback_prepare()
606 	mutex_lock(&dpcm->loopback->cable_lock);  in loopback_hw_free()
608 	mutex_unlock(&dpcm->loopback->cable_lock);  in loopback_hw_free()
664 	struct loopback *loopback = substream->private_data;  in loopback_open()  local
670 	mutex_lock(&loopback->cable_lock);  in loopback_open()
676 	dpcm->loopback = loopback;  in loopback_open()
681 	cable = loopback->cables[substream->number][dev];  in loopback_open()
691 		loopback->cables[substream->number][dev] = cable;  in loopback_open()
727 	mutex_unlock(&loopback->cable_lock);  in loopback_open()
733 	struct loopback *loopback = substream->private_data;  in loopback_close()  local
739 	mutex_lock(&loopback->cable_lock);  in loopback_close()
740 	cable = loopback->cables[substream->number][dev];  in loopback_close()
746 		loopback->cables[substream->number][dev] = NULL;  in loopback_close()
749 	mutex_unlock(&loopback->cable_lock);  in loopback_close()
779 static int loopback_pcm_new(struct loopback *loopback,  in loopback_pcm_new()  argument
785 	err = snd_pcm_new(loopback->card, "Loopback PCM", device,  in loopback_pcm_new()
792 	pcm->private_data = loopback;  in loopback_pcm_new()
796 	loopback->pcm[device] = pcm;  in loopback_pcm_new()
814 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_rate_shift_get()  local
817 		loopback->setup[kcontrol->id.subdevice]  in loopback_rate_shift_get()
825 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_rate_shift_put()  local
834 	mutex_lock(&loopback->cable_lock);  in loopback_rate_shift_put()
835 	if (val != loopback->setup[kcontrol->id.subdevice]  in loopback_rate_shift_put()
837 		loopback->setup[kcontrol->id.subdevice]  in loopback_rate_shift_put()
841 	mutex_unlock(&loopback->cable_lock);  in loopback_rate_shift_put()
848 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_notify_get()  local
851 		loopback->setup[kcontrol->id.subdevice]  in loopback_notify_get()
859 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_notify_put()  local
864 	if (val != loopback->setup[kcontrol->id.subdevice]  in loopback_notify_put()
866 		loopback->setup[kcontrol->id.subdevice]  in loopback_notify_put()
876 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_active_get()  local
877 	struct loopback_cable *cable = loopback->cables  in loopback_active_get()
902 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_format_get()  local
905 		loopback->setup[kcontrol->id.subdevice]  in loopback_format_get()
924 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_rate_get()  local
927 		loopback->setup[kcontrol->id.subdevice]  in loopback_rate_get()
946 	struct loopback *loopback = snd_kcontrol_chip(kcontrol);  in loopback_channels_get()  local
949 		loopback->setup[kcontrol->id.subdevice]  in loopback_channels_get()
1003 static int loopback_mixer_new(struct loopback *loopback, int notify)  in loopback_mixer_new()  argument
1005 	struct snd_card *card = loopback->card;  in loopback_mixer_new()
1013 		pcm = loopback->pcm[dev];  in loopback_mixer_new()
1017 			setup = &loopback->setup[substr][dev];  in loopback_mixer_new()
1026 						    loopback);  in loopback_mixer_new()
1084 				 struct loopback *loopback,  in print_substream_info()  argument
1088 	struct loopback_cable *cable = loopback->cables[sub][num];  in print_substream_info()
1105 	struct loopback *loopback = entry->private_data;  in print_cable_info()  local
1108 	mutex_lock(&loopback->cable_lock);  in print_cable_info()
1112 		print_substream_info(buffer, loopback, sub, num);  in print_cable_info()
1113 	mutex_unlock(&loopback->cable_lock);  in print_cable_info()
1116 static int loopback_proc_new(struct loopback *loopback, int cidx)  in loopback_proc_new()  argument
1123 	err = snd_card_proc_new(loopback->card, name, &entry);  in loopback_proc_new()
1127 	snd_info_set_text_ops(entry, loopback, print_cable_info);  in loopback_proc_new()
1133 #define loopback_proc_new(loopback, cidx) do { } while (0)  argument
1140 	struct loopback *loopback;  in loopback_probe()  local
1145 			   sizeof(struct loopback), &card);  in loopback_probe()
1148 	loopback = card->private_data;  in loopback_probe()
1155 	loopback->card = card;  in loopback_probe()
1156 	mutex_init(&loopback->cable_lock);  in loopback_probe()
1158 	err = loopback_pcm_new(loopback, 0, pcm_substreams[dev]);  in loopback_probe()
1161 	err = loopback_pcm_new(loopback, 1, pcm_substreams[dev]);  in loopback_probe()
1164 	err = loopback_mixer_new(loopback, pcm_notify[dev] ? 1 : 0);  in loopback_probe()
1167 	loopback_proc_new(loopback, 0);  in loopback_probe()
1168 	loopback_proc_new(loopback, 1);  in loopback_probe()
1192 	struct loopback *loopback = card->private_data;  in loopback_suspend()  local
1196 	snd_pcm_suspend_all(loopback->pcm[0]);  in loopback_suspend()
1197 	snd_pcm_suspend_all(loopback->pcm[1]);  in loopback_suspend()