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()
330 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
336 	if (! substream)  in snd_pcm_proc_info_read()
343 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
366 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
379 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
382 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
383 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
400 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
410 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
416 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
419 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
420 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
438 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
444 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
449 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
450 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
456 	err = snd_pcm_status64(substream, &status);  in snd_pcm_substream_proc_status_read()
462 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
474 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
481 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
483 	snd_pcm_stop_xrun(substream);  in snd_pcm_xrun_injection_write()
540 create_substream_info_entry(struct snd_pcm_substream *substream,  in create_substream_info_entry()  argument
547 	entry = snd_info_create_card_entry(substream->pcm->card, name,  in create_substream_info_entry()
548 					   substream->proc_root);  in create_substream_info_entry()
550 		snd_info_set_text_ops(entry, substream, read);  in create_substream_info_entry()
554 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
560 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
562 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
564 					   substream->pstr->proc_root);  in snd_pcm_substream_proc_init()
568 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
570 	create_substream_info_entry(substream, "info",  in snd_pcm_substream_proc_init()
572 	create_substream_info_entry(substream, "hw_params",  in snd_pcm_substream_proc_init()
574 	create_substream_info_entry(substream, "sw_params",  in snd_pcm_substream_proc_init()
576 	create_substream_info_entry(substream, "status",  in snd_pcm_substream_proc_init()
580 	entry = create_substream_info_entry(substream, "xrun_injection", NULL);  in snd_pcm_substream_proc_init()
593 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
640 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
666 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
667 		if (!substream)  in snd_pcm_new_stream()
669 		substream->pcm = pcm;  in snd_pcm_new_stream()
670 		substream->pstr = pstr;  in snd_pcm_new_stream()
671 		substream->number = idx;  in snd_pcm_new_stream()
672 		substream->stream = stream;  in snd_pcm_new_stream()
673 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
674 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
676 			pstr->substream = substream;  in snd_pcm_new_stream()
678 			prev->next = substream;  in snd_pcm_new_stream()
681 			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 		snd_pcm_group_init(&substream->self_group);  in snd_pcm_new_stream()
695 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
696 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
697 		prev = substream;  in snd_pcm_new_stream()
820 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
828 	substream = pstr->substream;  in snd_pcm_free_stream()
829 	while (substream) {  in snd_pcm_free_stream()
830 		substream_next = substream->next;  in snd_pcm_free_stream()
831 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
832 		kfree(substream);  in snd_pcm_free_stream()
833 		substream = substream_next;  in snd_pcm_free_stream()
884 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
897 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
906 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
907 		     substream = substream->next) {  in snd_pcm_attach_substream()
908 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
917 			substream = pstr->substream;  in snd_pcm_attach_substream()
919 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
920 			     substream = substream->next)  in snd_pcm_attach_substream()
921 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
924 		if (! substream)  in snd_pcm_attach_substream()
926 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
928 		substream->ref_count++;  in snd_pcm_attach_substream()
929 		*rsubstream = substream;  in snd_pcm_attach_substream()
933 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
934 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
936 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
939 	if (substream == NULL)  in snd_pcm_attach_substream()
969 	substream->runtime = runtime;  in snd_pcm_attach_substream()
970 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
971 	substream->ref_count = 1;  in snd_pcm_attach_substream()
972 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
973 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
975 	*rsubstream = substream;  in snd_pcm_attach_substream()
979 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
983 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
985 	runtime = substream->runtime;  in snd_pcm_detach_substream()
994 	if (substream->timer) {  in snd_pcm_detach_substream()
995 		spin_lock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
996 		substream->runtime = NULL;  in snd_pcm_detach_substream()
997 		spin_unlock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
999 		substream->runtime = NULL;  in snd_pcm_detach_substream()
1002 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1003 	substream->pid = NULL;  in snd_pcm_detach_substream()
1004 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1045 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1058 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1077 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1078 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1091 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1099 	for_each_pcm_substream(pcm, cidx, substream) {  in snd_pcm_dev_disconnect()
1100 		snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1101 		if (substream->runtime) {  in snd_pcm_dev_disconnect()
1102 			if (snd_pcm_running(substream))  in snd_pcm_dev_disconnect()
1103 				snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);  in snd_pcm_dev_disconnect()
1105 			substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1106 			wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1107 			wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1109 		snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1112 	for_each_pcm_substream(pcm, cidx, substream)  in snd_pcm_dev_disconnect()
1113 		snd_pcm_sync_stop(substream, false);  in snd_pcm_dev_disconnect()
1174 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1177 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()