123 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
151 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
152 			     substream = substream->next)  in snd_pcm_control_ioctl()
153 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
155 			if (substream == NULL) {  in snd_pcm_control_ioctl()
160 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
345 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
351 	if (! substream)  in snd_pcm_proc_info_read()
358 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
381 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
394 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
397 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
398 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
415 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
425 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
431 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
434 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
435 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
453 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
459 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
464 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
465 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
471 	err = snd_pcm_status(substream, &status);  in snd_pcm_substream_proc_status_read()
477 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
489 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
496 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
499 	snd_pcm_stream_lock_irq(substream);  in snd_pcm_xrun_injection_write()
500 	runtime = substream->runtime;  in snd_pcm_xrun_injection_write()
502 		snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);  in snd_pcm_xrun_injection_write()
503 	snd_pcm_stream_unlock_irq(substream);  in snd_pcm_xrun_injection_write()
582 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
588 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
590 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
592 					   substream->pstr->proc_root);  in snd_pcm_substream_proc_init()
600 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
601 	entry = snd_info_create_card_entry(card, "info", substream->proc_root);  in snd_pcm_substream_proc_init()
603 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
610 	substream->proc_info_entry = entry;  in snd_pcm_substream_proc_init()
612 					   substream->proc_root);  in snd_pcm_substream_proc_init()
614 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
621 	substream->proc_hw_params_entry = entry;  in snd_pcm_substream_proc_init()
623 					   substream->proc_root);  in snd_pcm_substream_proc_init()
625 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
632 	substream->proc_sw_params_entry = entry;  in snd_pcm_substream_proc_init()
634 					   substream->proc_root);  in snd_pcm_substream_proc_init()
636 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
643 	substream->proc_status_entry = entry;  in snd_pcm_substream_proc_init()
647 					   substream->proc_root);  in snd_pcm_substream_proc_init()
649 		entry->private_data = substream;  in snd_pcm_substream_proc_init()
658 	substream->proc_xrun_injection_entry = entry;  in snd_pcm_substream_proc_init()
664 static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_done()  argument
666 	snd_info_free_entry(substream->proc_info_entry);  in snd_pcm_substream_proc_done()
667 	substream->proc_info_entry = NULL;  in snd_pcm_substream_proc_done()
668 	snd_info_free_entry(substream->proc_hw_params_entry);  in snd_pcm_substream_proc_done()
669 	substream->proc_hw_params_entry = NULL;  in snd_pcm_substream_proc_done()
670 	snd_info_free_entry(substream->proc_sw_params_entry);  in snd_pcm_substream_proc_done()
671 	substream->proc_sw_params_entry = NULL;  in snd_pcm_substream_proc_done()
672 	snd_info_free_entry(substream->proc_status_entry);  in snd_pcm_substream_proc_done()
673 	substream->proc_status_entry = NULL;  in snd_pcm_substream_proc_done()
675 	snd_info_free_entry(substream->proc_xrun_injection_entry);  in snd_pcm_substream_proc_done()
676 	substream->proc_xrun_injection_entry = NULL;  in snd_pcm_substream_proc_done()
678 	snd_info_free_entry(substream->proc_root);  in snd_pcm_substream_proc_done()
679 	substream->proc_root = NULL;  in snd_pcm_substream_proc_done()
685 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
686 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_done()  argument
708 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
733 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
734 		if (!substream)  in snd_pcm_new_stream()
736 		substream->pcm = pcm;  in snd_pcm_new_stream()
737 		substream->pstr = pstr;  in snd_pcm_new_stream()
738 		substream->number = idx;  in snd_pcm_new_stream()
739 		substream->stream = stream;  in snd_pcm_new_stream()
740 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
741 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
743 			pstr->substream = substream;  in snd_pcm_new_stream()
745 			prev->next = substream;  in snd_pcm_new_stream()
748 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
753 					pstr->substream = NULL;  in snd_pcm_new_stream()
756 				kfree(substream);  in snd_pcm_new_stream()
760 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
761 		spin_lock_init(&substream->self_group.lock);  in snd_pcm_new_stream()
762 		mutex_init(&substream->self_group.mutex);  in snd_pcm_new_stream()
763 		INIT_LIST_HEAD(&substream->self_group.substreams);  in snd_pcm_new_stream()
764 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
765 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
766 		prev = substream;  in snd_pcm_new_stream()
885 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
889 	substream = pstr->substream;  in snd_pcm_free_stream()
890 	while (substream) {  in snd_pcm_free_stream()
891 		substream_next = substream->next;  in snd_pcm_free_stream()
892 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
893 		snd_pcm_substream_proc_done(substream);  in snd_pcm_free_stream()
894 		kfree(substream);  in snd_pcm_free_stream()
895 		substream = substream_next;  in snd_pcm_free_stream()
947 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
960 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
969 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
970 		     substream = substream->next) {  in snd_pcm_attach_substream()
971 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
980 			substream = pstr->substream;  in snd_pcm_attach_substream()
982 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
983 			     substream = substream->next)  in snd_pcm_attach_substream()
984 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
987 		if (! substream)  in snd_pcm_attach_substream()
989 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
991 		substream->ref_count++;  in snd_pcm_attach_substream()
992 		*rsubstream = substream;  in snd_pcm_attach_substream()
996 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
997 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
999 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
1002 	if (substream == NULL)  in snd_pcm_attach_substream()
1032 	substream->runtime = runtime;  in snd_pcm_attach_substream()
1033 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
1034 	substream->ref_count = 1;  in snd_pcm_attach_substream()
1035 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
1036 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
1038 	*rsubstream = substream;  in snd_pcm_attach_substream()
1042 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
1046 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
1048 	runtime = substream->runtime;  in snd_pcm_detach_substream()
1057 	if (substream->timer)  in snd_pcm_detach_substream()
1058 		spin_lock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1059 	substream->runtime = NULL;  in snd_pcm_detach_substream()
1060 	if (substream->timer)  in snd_pcm_detach_substream()
1061 		spin_unlock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1063 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1064 	substream->pid = NULL;  in snd_pcm_detach_substream()
1065 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1106 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1121 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1140 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1141 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1154 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1162 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1163 			snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1164 			if (substream->runtime) {  in snd_pcm_dev_disconnect()
1165 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1166 				wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1167 				wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1169 			snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1234 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1237 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()