114 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
141 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
142 			     substream = substream->next)  in snd_pcm_control_ioctl()
143 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
145 			if (substream == NULL) {  in snd_pcm_control_ioctl()
149 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
326 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
332 	if (! substream)  in snd_pcm_proc_info_read()
341 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
364 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
377 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
380 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
381 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
398 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
408 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
414 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
417 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
418 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
436 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
442 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
447 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
448 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
454 	err = snd_pcm_status(substream, &status);  in snd_pcm_substream_proc_status_read()
460 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
472 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
549 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
555 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
557 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
558 	if ((entry = snd_info_create_card_entry(card, name, substream->pstr->proc_root)) == NULL)  in snd_pcm_substream_proc_init()
565 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
567 	if ((entry = snd_info_create_card_entry(card, "info", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
568 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
575 	substream->proc_info_entry = entry;  in snd_pcm_substream_proc_init()
577 	if ((entry = snd_info_create_card_entry(card, "hw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
578 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
585 	substream->proc_hw_params_entry = entry;  in snd_pcm_substream_proc_init()
587 	if ((entry = snd_info_create_card_entry(card, "sw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
588 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
595 	substream->proc_sw_params_entry = entry;  in snd_pcm_substream_proc_init()
597 	if ((entry = snd_info_create_card_entry(card, "status", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
598 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
605 	substream->proc_status_entry = entry;  in snd_pcm_substream_proc_init()
610 static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_done()  argument
612 	snd_info_free_entry(substream->proc_info_entry);  in snd_pcm_substream_proc_done()
613 	substream->proc_info_entry = NULL;  in snd_pcm_substream_proc_done()
614 	snd_info_free_entry(substream->proc_hw_params_entry);  in snd_pcm_substream_proc_done()
615 	substream->proc_hw_params_entry = NULL;  in snd_pcm_substream_proc_done()
616 	snd_info_free_entry(substream->proc_sw_params_entry);  in snd_pcm_substream_proc_done()
617 	substream->proc_sw_params_entry = NULL;  in snd_pcm_substream_proc_done()
618 	snd_info_free_entry(substream->proc_status_entry);  in snd_pcm_substream_proc_done()
619 	substream->proc_status_entry = NULL;  in snd_pcm_substream_proc_done()
620 	snd_info_free_entry(substream->proc_root);  in snd_pcm_substream_proc_done()
621 	substream->proc_root = NULL;  in snd_pcm_substream_proc_done()
627 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
628 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_done()  argument
648 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
665 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
666 		if (substream == NULL) {  in snd_pcm_new_stream()
670 		substream->pcm = pcm;  in snd_pcm_new_stream()
671 		substream->pstr = pstr;  in snd_pcm_new_stream()
672 		substream->number = idx;  in snd_pcm_new_stream()
673 		substream->stream = stream;  in snd_pcm_new_stream()
674 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
675 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
677 			pstr->substream = substream;  in snd_pcm_new_stream()
679 			prev->next = substream;  in snd_pcm_new_stream()
682 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
686 					pstr->substream = NULL;  in snd_pcm_new_stream()
689 				kfree(substream);  in snd_pcm_new_stream()
693 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
694 		spin_lock_init(&substream->self_group.lock);  in snd_pcm_new_stream()
695 		INIT_LIST_HEAD(&substream->self_group.substreams);  in snd_pcm_new_stream()
696 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
697 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
698 		prev = substream;  in snd_pcm_new_stream()
805 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
809 	substream = pstr->substream;  in snd_pcm_free_stream()
810 	while (substream) {  in snd_pcm_free_stream()
811 		substream_next = substream->next;  in snd_pcm_free_stream()
812 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
813 		snd_pcm_substream_proc_done(substream);  in snd_pcm_free_stream()
814 		kfree(substream);  in snd_pcm_free_stream()
815 		substream = substream_next;  in snd_pcm_free_stream()
856 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
867 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
884 …for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substrea…  in snd_pcm_attach_substream()
885 				if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
892 …for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substre…  in snd_pcm_attach_substream()
893 				if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
906 			substream = pstr->substream;  in snd_pcm_attach_substream()
908 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
909 			     substream = substream->next)  in snd_pcm_attach_substream()
910 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
913 		if (! substream)  in snd_pcm_attach_substream()
915 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
917 		substream->ref_count++;  in snd_pcm_attach_substream()
918 		*rsubstream = substream;  in snd_pcm_attach_substream()
923 		for (substream = pstr->substream; substream; substream = substream->next)  in snd_pcm_attach_substream()
924 			if (!SUBSTREAM_BUSY(substream) && substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
927 	for (substream = pstr->substream; substream; substream = substream->next)  in snd_pcm_attach_substream()
928 		if (!SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
931 	if (substream == NULL)  in snd_pcm_attach_substream()
961 	substream->runtime = runtime;  in snd_pcm_attach_substream()
962 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
963 	substream->ref_count = 1;  in snd_pcm_attach_substream()
964 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
965 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
967 	*rsubstream = substream;  in snd_pcm_attach_substream()
971 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
975 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
977 	runtime = substream->runtime;  in snd_pcm_detach_substream()
989 	substream->runtime = NULL;  in snd_pcm_detach_substream()
990 	put_pid(substream->pid);  in snd_pcm_detach_substream()
991 	substream->pid = NULL;  in snd_pcm_detach_substream()
992 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1021 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1038 		if (pcm->streams[cidx].substream == NULL || pcm->internal)  in snd_pcm_dev_register()
1068 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1069 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1083 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1094 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1095 			snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1096 			if (substream->runtime) {  in snd_pcm_dev_disconnect()
1097 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1098 				wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1099 				wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1101 			snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1167 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1170 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()