122 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
149 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
150 			     substream = substream->next)  in snd_pcm_control_ioctl()
151 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
153 			if (substream == NULL) {  in snd_pcm_control_ioctl()
158 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
343 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
349 	if (! substream)  in snd_pcm_proc_info_read()
356 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
379 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
392 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
395 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
396 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
413 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
423 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
429 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
432 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
433 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
451 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
457 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
462 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
463 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
469 	err = snd_pcm_status(substream, &status);  in snd_pcm_substream_proc_status_read()
475 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
487 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
494 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
496 	snd_pcm_stop_xrun(substream);  in snd_pcm_xrun_injection_write()
575 static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_init()  argument
581 	card = substream->pcm->card;  in snd_pcm_substream_proc_init()
583 	sprintf(name, "sub%i", substream->number);  in snd_pcm_substream_proc_init()
585 					   substream->pstr->proc_root);  in snd_pcm_substream_proc_init()
593 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
594 	entry = snd_info_create_card_entry(card, "info", substream->proc_root);  in snd_pcm_substream_proc_init()
596 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
603 	substream->proc_info_entry = entry;  in snd_pcm_substream_proc_init()
605 					   substream->proc_root);  in snd_pcm_substream_proc_init()
607 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
614 	substream->proc_hw_params_entry = entry;  in snd_pcm_substream_proc_init()
616 					   substream->proc_root);  in snd_pcm_substream_proc_init()
618 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
625 	substream->proc_sw_params_entry = entry;  in snd_pcm_substream_proc_init()
627 					   substream->proc_root);  in snd_pcm_substream_proc_init()
629 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
636 	substream->proc_status_entry = entry;  in snd_pcm_substream_proc_init()
640 					   substream->proc_root);  in snd_pcm_substream_proc_init()
642 		entry->private_data = substream;  in snd_pcm_substream_proc_init()
651 	substream->proc_xrun_injection_entry = entry;  in snd_pcm_substream_proc_init()
657 static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_done()  argument
659 	snd_info_free_entry(substream->proc_info_entry);  in snd_pcm_substream_proc_done()
660 	substream->proc_info_entry = NULL;  in snd_pcm_substream_proc_done()
661 	snd_info_free_entry(substream->proc_hw_params_entry);  in snd_pcm_substream_proc_done()
662 	substream->proc_hw_params_entry = NULL;  in snd_pcm_substream_proc_done()
663 	snd_info_free_entry(substream->proc_sw_params_entry);  in snd_pcm_substream_proc_done()
664 	substream->proc_sw_params_entry = NULL;  in snd_pcm_substream_proc_done()
665 	snd_info_free_entry(substream->proc_status_entry);  in snd_pcm_substream_proc_done()
666 	substream->proc_status_entry = NULL;  in snd_pcm_substream_proc_done()
668 	snd_info_free_entry(substream->proc_xrun_injection_entry);  in snd_pcm_substream_proc_done()
669 	substream->proc_xrun_injection_entry = NULL;  in snd_pcm_substream_proc_done()
671 	snd_info_free_entry(substream->proc_root);  in snd_pcm_substream_proc_done()
672 	substream->proc_root = NULL;  in snd_pcm_substream_proc_done()
678 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
679 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_done()  argument
701 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
726 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
727 		if (!substream)  in snd_pcm_new_stream()
729 		substream->pcm = pcm;  in snd_pcm_new_stream()
730 		substream->pstr = pstr;  in snd_pcm_new_stream()
731 		substream->number = idx;  in snd_pcm_new_stream()
732 		substream->stream = stream;  in snd_pcm_new_stream()
733 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
734 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
736 			pstr->substream = substream;  in snd_pcm_new_stream()
738 			prev->next = substream;  in snd_pcm_new_stream()
741 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
746 					pstr->substream = NULL;  in snd_pcm_new_stream()
749 				kfree(substream);  in snd_pcm_new_stream()
753 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
754 		spin_lock_init(&substream->self_group.lock);  in snd_pcm_new_stream()
755 		mutex_init(&substream->self_group.mutex);  in snd_pcm_new_stream()
756 		INIT_LIST_HEAD(&substream->self_group.substreams);  in snd_pcm_new_stream()
757 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
758 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
759 		prev = substream;  in snd_pcm_new_stream()
882 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
886 	substream = pstr->substream;  in snd_pcm_free_stream()
887 	while (substream) {  in snd_pcm_free_stream()
888 		substream_next = substream->next;  in snd_pcm_free_stream()
889 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
890 		snd_pcm_substream_proc_done(substream);  in snd_pcm_free_stream()
891 		kfree(substream);  in snd_pcm_free_stream()
892 		substream = substream_next;  in snd_pcm_free_stream()
944 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
957 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
966 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
967 		     substream = substream->next) {  in snd_pcm_attach_substream()
968 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
977 			substream = pstr->substream;  in snd_pcm_attach_substream()
979 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
980 			     substream = substream->next)  in snd_pcm_attach_substream()
981 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
984 		if (! substream)  in snd_pcm_attach_substream()
986 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
988 		substream->ref_count++;  in snd_pcm_attach_substream()
989 		*rsubstream = substream;  in snd_pcm_attach_substream()
993 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
994 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
996 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
999 	if (substream == NULL)  in snd_pcm_attach_substream()
1029 	substream->runtime = runtime;  in snd_pcm_attach_substream()
1030 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
1031 	substream->ref_count = 1;  in snd_pcm_attach_substream()
1032 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
1033 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
1035 	*rsubstream = substream;  in snd_pcm_attach_substream()
1039 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
1043 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
1045 	runtime = substream->runtime;  in snd_pcm_detach_substream()
1054 	if (substream->timer)  in snd_pcm_detach_substream()
1055 		spin_lock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1056 	substream->runtime = NULL;  in snd_pcm_detach_substream()
1057 	if (substream->timer)  in snd_pcm_detach_substream()
1058 		spin_unlock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1060 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1061 	substream->pid = NULL;  in snd_pcm_detach_substream()
1062 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1103 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1116 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1135 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1136 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1149 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1157 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1158 			snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1159 			if (substream->runtime) {  in snd_pcm_dev_disconnect()
1160 				if (snd_pcm_running(substream))  in snd_pcm_dev_disconnect()
1161 					snd_pcm_stop(substream,  in snd_pcm_dev_disconnect()
1164 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1165 				wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1166 				wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1168 			snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1231 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1234 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()