108 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
136 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
137 			     substream = substream->next)  in snd_pcm_control_ioctl()
138 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
140 			if (substream == NULL) {  in snd_pcm_control_ioctl()
145 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
333 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
339 	if (! substream)  in snd_pcm_proc_info_read()
346 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
369 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
382 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
385 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
386 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
403 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
413 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
419 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
422 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
423 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
441 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
447 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
452 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
453 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
459 	err = snd_pcm_status64(substream, &status);  in snd_pcm_substream_proc_status_read()
465 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
477 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
484 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
486 	snd_pcm_stop_xrun(substream);  in snd_pcm_xrun_injection_write()
543 create_substream_info_entry(struct snd_pcm_substream *substream,  in create_substream_info_entry()  argument
550 	entry = snd_info_create_card_entry(substream->pcm->card, name,  in create_substream_info_entry()
551 					   substream->proc_root);  in create_substream_info_entry()
553 		snd_info_set_text_ops(entry, substream, read);  in create_substream_info_entry()
557 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
563 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
565 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
567 					   substream->pstr->proc_root);  in snd_pcm_substream_proc_init()
571 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
573 	create_substream_info_entry(substream, "info",  in snd_pcm_substream_proc_init()
575 	create_substream_info_entry(substream, "hw_params",  in snd_pcm_substream_proc_init()
577 	create_substream_info_entry(substream, "sw_params",  in snd_pcm_substream_proc_init()
579 	create_substream_info_entry(substream, "status",  in snd_pcm_substream_proc_init()
583 	entry = create_substream_info_entry(substream, "xrun_injection", NULL);  in snd_pcm_substream_proc_init()
596 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
643 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
672 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
673 		if (!substream)  in snd_pcm_new_stream()
675 		substream->pcm = pcm;  in snd_pcm_new_stream()
676 		substream->pstr = pstr;  in snd_pcm_new_stream()
677 		substream->number = idx;  in snd_pcm_new_stream()
678 		substream->stream = stream;  in snd_pcm_new_stream()
679 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
680 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
682 			pstr->substream = substream;  in snd_pcm_new_stream()
684 			prev->next = substream;  in snd_pcm_new_stream()
687 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
692 					pstr->substream = NULL;  in snd_pcm_new_stream()
695 				kfree(substream);  in snd_pcm_new_stream()
699 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
700 		snd_pcm_group_init(&substream->self_group);  in snd_pcm_new_stream()
701 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
702 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
703 		prev = substream;  in snd_pcm_new_stream()
828 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
836 	substream = pstr->substream;  in snd_pcm_free_stream()
837 	while (substream) {  in snd_pcm_free_stream()
838 		substream_next = substream->next;  in snd_pcm_free_stream()
839 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
840 		kfree(substream);  in snd_pcm_free_stream()
841 		substream = substream_next;  in snd_pcm_free_stream()
892 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
905 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
914 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
915 		     substream = substream->next) {  in snd_pcm_attach_substream()
916 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
925 			substream = pstr->substream;  in snd_pcm_attach_substream()
927 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
928 			     substream = substream->next)  in snd_pcm_attach_substream()
929 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
932 		if (! substream)  in snd_pcm_attach_substream()
934 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
936 		substream->ref_count++;  in snd_pcm_attach_substream()
937 		*rsubstream = substream;  in snd_pcm_attach_substream()
941 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
942 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
944 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
947 	if (substream == NULL)  in snd_pcm_attach_substream()
979 	substream->runtime = runtime;  in snd_pcm_attach_substream()
980 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
981 	substream->ref_count = 1;  in snd_pcm_attach_substream()
982 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
983 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
985 	*rsubstream = substream;  in snd_pcm_attach_substream()
989 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
993 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
995 	runtime = substream->runtime;  in snd_pcm_detach_substream()
1004 	if (substream->timer) {  in snd_pcm_detach_substream()
1005 		spin_lock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1006 		substream->runtime = NULL;  in snd_pcm_detach_substream()
1007 		spin_unlock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1009 		substream->runtime = NULL;  in snd_pcm_detach_substream()
1014 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1015 	substream->pid = NULL;  in snd_pcm_detach_substream()
1016 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1057 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1070 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1089 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1090 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1103 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1111 	for_each_pcm_substream(pcm, cidx, substream) {  in snd_pcm_dev_disconnect()
1112 		snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1113 		if (substream->runtime) {  in snd_pcm_dev_disconnect()
1114 			if (snd_pcm_running(substream))  in snd_pcm_dev_disconnect()
1115 				snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);  in snd_pcm_dev_disconnect()
1117 			__snd_pcm_set_state(substream->runtime,  in snd_pcm_dev_disconnect()
1119 			wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1120 			wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1122 		snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1125 	for_each_pcm_substream(pcm, cidx, substream)  in snd_pcm_dev_disconnect()
1126 		snd_pcm_sync_stop(substream, false);  in snd_pcm_dev_disconnect()
1190 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1193 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()