117 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
144 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
145 			     substream = substream->next)  in snd_pcm_control_ioctl()
146 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
148 			if (substream == NULL) {  in snd_pcm_control_ioctl()
152 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
336 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
342 	if (! substream)  in snd_pcm_proc_info_read()
349 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
372 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
385 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
388 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
389 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
406 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
416 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
422 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
425 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
426 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
444 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
450 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
455 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
456 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
462 	err = snd_pcm_status(substream, &status);  in snd_pcm_substream_proc_status_read()
468 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
480 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
487 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
490 	snd_pcm_stream_lock_irq(substream);  in snd_pcm_xrun_injection_write()
491 	runtime = substream->runtime;  in snd_pcm_xrun_injection_write()
493 		snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);  in snd_pcm_xrun_injection_write()
494 	snd_pcm_stream_unlock_irq(substream);  in snd_pcm_xrun_injection_write()
570 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
576 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
578 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
579 	if ((entry = snd_info_create_card_entry(card, name, substream->pstr->proc_root)) == NULL)  in snd_pcm_substream_proc_init()
586 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
588 	if ((entry = snd_info_create_card_entry(card, "info", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
589 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
596 	substream->proc_info_entry = entry;  in snd_pcm_substream_proc_init()
598 	if ((entry = snd_info_create_card_entry(card, "hw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
599 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
606 	substream->proc_hw_params_entry = entry;  in snd_pcm_substream_proc_init()
608 	if ((entry = snd_info_create_card_entry(card, "sw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
609 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
616 	substream->proc_sw_params_entry = entry;  in snd_pcm_substream_proc_init()
618 	if ((entry = snd_info_create_card_entry(card, "status", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
619 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
626 	substream->proc_status_entry = entry;  in snd_pcm_substream_proc_init()
630 					   substream->proc_root);  in snd_pcm_substream_proc_init()
632 		entry->private_data = substream;  in snd_pcm_substream_proc_init()
641 	substream->proc_xrun_injection_entry = entry;  in snd_pcm_substream_proc_init()
647 static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_done()  argument
649 	snd_info_free_entry(substream->proc_info_entry);  in snd_pcm_substream_proc_done()
650 	substream->proc_info_entry = NULL;  in snd_pcm_substream_proc_done()
651 	snd_info_free_entry(substream->proc_hw_params_entry);  in snd_pcm_substream_proc_done()
652 	substream->proc_hw_params_entry = NULL;  in snd_pcm_substream_proc_done()
653 	snd_info_free_entry(substream->proc_sw_params_entry);  in snd_pcm_substream_proc_done()
654 	substream->proc_sw_params_entry = NULL;  in snd_pcm_substream_proc_done()
655 	snd_info_free_entry(substream->proc_status_entry);  in snd_pcm_substream_proc_done()
656 	substream->proc_status_entry = NULL;  in snd_pcm_substream_proc_done()
658 	snd_info_free_entry(substream->proc_xrun_injection_entry);  in snd_pcm_substream_proc_done()
659 	substream->proc_xrun_injection_entry = NULL;  in snd_pcm_substream_proc_done()
661 	snd_info_free_entry(substream->proc_root);  in snd_pcm_substream_proc_done()
662 	substream->proc_root = NULL;  in snd_pcm_substream_proc_done()
668 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
669 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_done()  argument
691 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
716 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
717 		if (!substream)  in snd_pcm_new_stream()
719 		substream->pcm = pcm;  in snd_pcm_new_stream()
720 		substream->pstr = pstr;  in snd_pcm_new_stream()
721 		substream->number = idx;  in snd_pcm_new_stream()
722 		substream->stream = stream;  in snd_pcm_new_stream()
723 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
724 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
726 			pstr->substream = substream;  in snd_pcm_new_stream()
728 			prev->next = substream;  in snd_pcm_new_stream()
731 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
736 					pstr->substream = NULL;  in snd_pcm_new_stream()
739 				kfree(substream);  in snd_pcm_new_stream()
743 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
744 		spin_lock_init(&substream->self_group.lock);  in snd_pcm_new_stream()
745 		mutex_init(&substream->self_group.mutex);  in snd_pcm_new_stream()
746 		INIT_LIST_HEAD(&substream->self_group.substreams);  in snd_pcm_new_stream()
747 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
748 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
749 		prev = substream;  in snd_pcm_new_stream()
854 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
858 	substream = pstr->substream;  in snd_pcm_free_stream()
859 	while (substream) {  in snd_pcm_free_stream()
860 		substream_next = substream->next;  in snd_pcm_free_stream()
861 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
862 		snd_pcm_substream_proc_done(substream);  in snd_pcm_free_stream()
863 		kfree(substream);  in snd_pcm_free_stream()
864 		substream = substream_next;  in snd_pcm_free_stream()
908 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
921 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
930 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
931 		     substream = substream->next) {  in snd_pcm_attach_substream()
932 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
941 			substream = pstr->substream;  in snd_pcm_attach_substream()
943 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
944 			     substream = substream->next)  in snd_pcm_attach_substream()
945 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
948 		if (! substream)  in snd_pcm_attach_substream()
950 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
952 		substream->ref_count++;  in snd_pcm_attach_substream()
953 		*rsubstream = substream;  in snd_pcm_attach_substream()
957 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
958 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
960 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
963 	if (substream == NULL)  in snd_pcm_attach_substream()
993 	substream->runtime = runtime;  in snd_pcm_attach_substream()
994 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
995 	substream->ref_count = 1;  in snd_pcm_attach_substream()
996 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
997 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
999 	*rsubstream = substream;  in snd_pcm_attach_substream()
1003 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
1007 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
1009 	runtime = substream->runtime;  in snd_pcm_detach_substream()
1021 	substream->runtime = NULL;  in snd_pcm_detach_substream()
1022 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1023 	substream->pid = NULL;  in snd_pcm_detach_substream()
1024 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1065 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1081 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1100 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1101 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1116 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1124 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1125 			snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1126 			if (substream->runtime) {  in snd_pcm_dev_disconnect()
1127 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1128 				wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1129 				wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1131 			snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1198 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1201 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()