47 static int snd_pcm_free(struct snd_pcm *pcm);
54 	struct snd_pcm *pcm;  in snd_pcm_get()  local
56 	list_for_each_entry(pcm, &snd_pcm_devices, list) {  in snd_pcm_get()
57 		if (pcm->card == card && pcm->device == device)  in snd_pcm_get()
58 			return pcm;  in snd_pcm_get()
65 	struct snd_pcm *pcm;  in snd_pcm_next()  local
67 	list_for_each_entry(pcm, &snd_pcm_devices, list) {  in snd_pcm_next()
68 		if (pcm->card == card && pcm->device > device)  in snd_pcm_next()
69 			return pcm->device;  in snd_pcm_next()
70 		else if (pcm->card->number > card->number)  in snd_pcm_next()
78 	struct snd_pcm *pcm;  in snd_pcm_add()  local
83 	list_for_each_entry(pcm, &snd_pcm_devices, list) {  in snd_pcm_add()
84 		if (pcm->card == newpcm->card && pcm->device == newpcm->device)  in snd_pcm_add()
86 		if (pcm->card->number > newpcm->card->number ||  in snd_pcm_add()
87 				(pcm->card == newpcm->card &&  in snd_pcm_add()
88 				pcm->device > newpcm->device)) {  in snd_pcm_add()
89 			list_add(&newpcm->list, pcm->list.prev);  in snd_pcm_add()
120 			struct snd_pcm *pcm;  in snd_pcm_control_ioctl()  local
135 			pcm = snd_pcm_get(card, device);  in snd_pcm_control_ioctl()
136 			if (pcm == NULL) {  in snd_pcm_control_ioctl()
140 			pstr = &pcm->streams[stream];  in snd_pcm_control_ioctl()
157 			mutex_lock(&pcm->open_mutex);  in snd_pcm_control_ioctl()
159 			mutex_unlock(&pcm->open_mutex);  in snd_pcm_control_ioctl()
395 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
423 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
432 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
451 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
462 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
487 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
518 	struct snd_pcm *pcm = pstr->pcm;  in snd_pcm_stream_proc_init()  local
522 	sprintf(name, "pcm%i%c", pcm->device,   in snd_pcm_stream_proc_init()
524 	entry = snd_info_create_card_entry(pcm->card, name,  in snd_pcm_stream_proc_init()
525 					   pcm->card->proc_root);  in snd_pcm_stream_proc_init()
534 	entry = snd_info_create_card_entry(pcm->card, "info", pstr->proc_root);  in snd_pcm_stream_proc_init()
545 	entry = snd_info_create_card_entry(pcm->card, "xrun_debug",  in snd_pcm_stream_proc_init()
581 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
697 int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)  in snd_pcm_new_stream()  argument
700 	struct snd_pcm_str *pstr = &pcm->streams[stream];  in snd_pcm_new_stream()
707 	pstr->pcm = pcm;  in snd_pcm_new_stream()
712 	snd_device_initialize(&pstr->dev, pcm->card);  in snd_pcm_new_stream()
714 	dev_set_name(&pstr->dev, "pcmC%iD%i%c", pcm->card->number, pcm->device,  in snd_pcm_new_stream()
717 	if (!pcm->internal) {  in snd_pcm_new_stream()
720 			pcm_err(pcm, "Error in snd_pcm_stream_proc_init\n");  in snd_pcm_new_stream()
729 		substream->pcm = pcm;  in snd_pcm_new_stream()
740 		if (!pcm->internal) {  in snd_pcm_new_stream()
743 				pcm_err(pcm,  in snd_pcm_new_stream()
769 	struct snd_pcm *pcm;  in _snd_pcm_new()  local
784 	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);  in _snd_pcm_new()
785 	if (!pcm)  in _snd_pcm_new()
787 	pcm->card = card;  in _snd_pcm_new()
788 	pcm->device = device;  in _snd_pcm_new()
789 	pcm->internal = internal;  in _snd_pcm_new()
790 	mutex_init(&pcm->open_mutex);  in _snd_pcm_new()
791 	init_waitqueue_head(&pcm->open_wait);  in _snd_pcm_new()
792 	INIT_LIST_HEAD(&pcm->list);  in _snd_pcm_new()
794 		strlcpy(pcm->id, id, sizeof(pcm->id));  in _snd_pcm_new()
796 	err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK,  in _snd_pcm_new()
801 	err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_CAPTURE, capture_count);  in _snd_pcm_new()
805 	err = snd_device_new(card, SNDRV_DEV_PCM, pcm,  in _snd_pcm_new()
811 		*rpcm = pcm;  in _snd_pcm_new()
815 	snd_pcm_free(pcm);  in _snd_pcm_new()
875 		snd_ctl_remove(pstr->pcm->card, pstr->chmap_kctl);  in free_chmap()
908 #define pcm_call_notify(pcm, call)					\  argument
912 			_notify->call(pcm);				\
915 #define pcm_call_notify(pcm, call) do {} while (0)  argument
918 static int snd_pcm_free(struct snd_pcm *pcm)  in snd_pcm_free()  argument
920 	if (!pcm)  in snd_pcm_free()
922 	if (!pcm->internal)  in snd_pcm_free()
923 		pcm_call_notify(pcm, n_unregister);  in snd_pcm_free()
924 	if (pcm->private_free)  in snd_pcm_free()
925 		pcm->private_free(pcm);  in snd_pcm_free()
926 	snd_pcm_lib_preallocate_free_for_all(pcm);  in snd_pcm_free()
927 	snd_pcm_free_stream(&pcm->streams[SNDRV_PCM_STREAM_PLAYBACK]);  in snd_pcm_free()
928 	snd_pcm_free_stream(&pcm->streams[SNDRV_PCM_STREAM_CAPTURE]);  in snd_pcm_free()
929 	kfree(pcm);  in snd_pcm_free()
935 	struct snd_pcm *pcm = device->device_data;  in snd_pcm_dev_free()  local
936 	return snd_pcm_free(pcm);  in snd_pcm_dev_free()
939 int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,  in snd_pcm_attach_substream()  argument
950 	if (snd_BUG_ON(!pcm || !rsubstream))  in snd_pcm_attach_substream()
956 	pstr = &pcm->streams[stream];  in snd_pcm_attach_substream()
960 	card = pcm->card;  in snd_pcm_attach_substream()
963 	if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {  in snd_pcm_attach_substream()
966 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
1030 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
1069 	struct snd_pcm *pcm = pstr->pcm;  in show_pcm_class()  local
1078 	if (pcm->dev_class > SNDRV_PCM_CLASS_LAST)  in show_pcm_class()
1081 		str = strs[pcm->dev_class];  in show_pcm_class()
1104 	struct snd_pcm *pcm;  in snd_pcm_dev_register()  local
1108 	pcm = device->device_data;  in snd_pcm_dev_register()
1111 	err = snd_pcm_add(pcm);  in snd_pcm_dev_register()
1116 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1127 		err = snd_register_device(devtype, pcm->card, pcm->device,  in snd_pcm_dev_register()
1128 					  &snd_pcm_f_ops[cidx], pcm,  in snd_pcm_dev_register()
1129 					  &pcm->streams[cidx].dev);  in snd_pcm_dev_register()
1131 			list_del_init(&pcm->list);  in snd_pcm_dev_register()
1135 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1139 	pcm_call_notify(pcm, n_register);  in snd_pcm_dev_register()
1148 	struct snd_pcm *pcm = device->device_data;  in snd_pcm_dev_disconnect()  local
1153 	mutex_lock(&pcm->open_mutex);  in snd_pcm_dev_disconnect()
1154 	wake_up(&pcm->open_wait);  in snd_pcm_dev_disconnect()
1155 	list_del_init(&pcm->list);  in snd_pcm_dev_disconnect()
1157 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1172 	pcm_call_notify(pcm, n_disconnect);  in snd_pcm_dev_disconnect()
1174 		snd_unregister_device(&pcm->streams[cidx].dev);  in snd_pcm_dev_disconnect()
1175 		free_chmap(&pcm->streams[cidx]);  in snd_pcm_dev_disconnect()
1177 	mutex_unlock(&pcm->open_mutex);  in snd_pcm_dev_disconnect()
1194 	struct snd_pcm *pcm;  in snd_pcm_notify()  local
1204 		list_for_each_entry(pcm, &snd_pcm_devices, list)  in snd_pcm_notify()
1205 			notify->n_unregister(pcm);  in snd_pcm_notify()
1208 		list_for_each_entry(pcm, &snd_pcm_devices, list)  in snd_pcm_notify()
1209 			notify->n_register(pcm);  in snd_pcm_notify()
1225 	struct snd_pcm *pcm;  in snd_pcm_proc_read()  local
1228 	list_for_each_entry(pcm, &snd_pcm_devices, list) {  in snd_pcm_proc_read()
1230 			    pcm->card->number, pcm->device, pcm->id, pcm->name);  in snd_pcm_proc_read()
1231 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1233 				    pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream_count);  in snd_pcm_proc_read()
1234 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()
1236 				    pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count);  in snd_pcm_proc_read()