119 			struct snd_pcm_substream *substream;  in snd_pcm_control_ioctl()  local
147 			for (substream = pstr->substream; substream;  in snd_pcm_control_ioctl()
148 			     substream = substream->next)  in snd_pcm_control_ioctl()
149 				if (substream->number == (int)subdevice)  in snd_pcm_control_ioctl()
151 			if (substream == NULL) {  in snd_pcm_control_ioctl()
156 			err = snd_pcm_info_user(substream, info);  in snd_pcm_control_ioctl()
341 static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,  in snd_pcm_proc_info_read()  argument
347 	if (! substream)  in snd_pcm_proc_info_read()
354 	err = snd_pcm_info(substream, info);  in snd_pcm_proc_info_read()
377 	snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream,  in snd_pcm_stream_proc_info_read()
390 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_hw_params_read()  local
393 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
394 	runtime = substream->runtime;  in snd_pcm_substream_proc_hw_params_read()
411 	if (substream->oss.oss) {  in snd_pcm_substream_proc_hw_params_read()
421 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_hw_params_read()
427 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_sw_params_read()  local
430 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
431 	runtime = substream->runtime;  in snd_pcm_substream_proc_sw_params_read()
449 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_sw_params_read()
455 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_substream_proc_status_read()  local
460 	mutex_lock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
461 	runtime = substream->runtime;  in snd_pcm_substream_proc_status_read()
467 	err = snd_pcm_status(substream, &status);  in snd_pcm_substream_proc_status_read()
473 	snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));  in snd_pcm_substream_proc_status_read()
485 	mutex_unlock(&substream->pcm->open_mutex);  in snd_pcm_substream_proc_status_read()
492 	struct snd_pcm_substream *substream = entry->private_data;  in snd_pcm_xrun_injection_write()  local
495 	snd_pcm_stream_lock_irq(substream);  in snd_pcm_xrun_injection_write()
496 	runtime = substream->runtime;  in snd_pcm_xrun_injection_write()
498 		snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);  in snd_pcm_xrun_injection_write()
499 	snd_pcm_stream_unlock_irq(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()
584 	if ((entry = snd_info_create_card_entry(card, name, substream->pstr->proc_root)) == NULL)  in snd_pcm_substream_proc_init()
591 	substream->proc_root = entry;  in snd_pcm_substream_proc_init()
593 	if ((entry = snd_info_create_card_entry(card, "info", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
594 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
601 	substream->proc_info_entry = entry;  in snd_pcm_substream_proc_init()
603 	if ((entry = snd_info_create_card_entry(card, "hw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
604 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
611 	substream->proc_hw_params_entry = entry;  in snd_pcm_substream_proc_init()
613 	if ((entry = snd_info_create_card_entry(card, "sw_params", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
614 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
621 	substream->proc_sw_params_entry = entry;  in snd_pcm_substream_proc_init()
623 	if ((entry = snd_info_create_card_entry(card, "status", substream->proc_root)) != NULL) {  in snd_pcm_substream_proc_init()
624 		snd_info_set_text_ops(entry, substream,  in snd_pcm_substream_proc_init()
631 	substream->proc_status_entry = entry;  in snd_pcm_substream_proc_init()
635 					   substream->proc_root);  in snd_pcm_substream_proc_init()
637 		entry->private_data = substream;  in snd_pcm_substream_proc_init()
646 	substream->proc_xrun_injection_entry = entry;  in snd_pcm_substream_proc_init()
652 static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)  in snd_pcm_substream_proc_done()  argument
654 	snd_info_free_entry(substream->proc_info_entry);  in snd_pcm_substream_proc_done()
655 	substream->proc_info_entry = NULL;  in snd_pcm_substream_proc_done()
656 	snd_info_free_entry(substream->proc_hw_params_entry);  in snd_pcm_substream_proc_done()
657 	substream->proc_hw_params_entry = NULL;  in snd_pcm_substream_proc_done()
658 	snd_info_free_entry(substream->proc_sw_params_entry);  in snd_pcm_substream_proc_done()
659 	substream->proc_sw_params_entry = NULL;  in snd_pcm_substream_proc_done()
660 	snd_info_free_entry(substream->proc_status_entry);  in snd_pcm_substream_proc_done()
661 	substream->proc_status_entry = NULL;  in snd_pcm_substream_proc_done()
663 	snd_info_free_entry(substream->proc_xrun_injection_entry);  in snd_pcm_substream_proc_done()
664 	substream->proc_xrun_injection_entry = NULL;  in snd_pcm_substream_proc_done()
666 	snd_info_free_entry(substream->proc_root);  in snd_pcm_substream_proc_done()
667 	substream->proc_root = NULL;  in snd_pcm_substream_proc_done()
673 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_init()  argument
674 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }  in snd_pcm_substream_proc_done()  argument
696 	struct snd_pcm_substream *substream, *prev;  in snd_pcm_new_stream()  local
721 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);  in snd_pcm_new_stream()
722 		if (!substream)  in snd_pcm_new_stream()
724 		substream->pcm = pcm;  in snd_pcm_new_stream()
725 		substream->pstr = pstr;  in snd_pcm_new_stream()
726 		substream->number = idx;  in snd_pcm_new_stream()
727 		substream->stream = stream;  in snd_pcm_new_stream()
728 		sprintf(substream->name, "subdevice #%i", idx);  in snd_pcm_new_stream()
729 		substream->buffer_bytes_max = UINT_MAX;  in snd_pcm_new_stream()
731 			pstr->substream = substream;  in snd_pcm_new_stream()
733 			prev->next = substream;  in snd_pcm_new_stream()
736 			err = snd_pcm_substream_proc_init(substream);  in snd_pcm_new_stream()
741 					pstr->substream = NULL;  in snd_pcm_new_stream()
744 				kfree(substream);  in snd_pcm_new_stream()
748 		substream->group = &substream->self_group;  in snd_pcm_new_stream()
749 		spin_lock_init(&substream->self_group.lock);  in snd_pcm_new_stream()
750 		mutex_init(&substream->self_group.mutex);  in snd_pcm_new_stream()
751 		INIT_LIST_HEAD(&substream->self_group.substreams);  in snd_pcm_new_stream()
752 		list_add_tail(&substream->link_list, &substream->self_group.substreams);  in snd_pcm_new_stream()
753 		atomic_set(&substream->mmap_count, 0);  in snd_pcm_new_stream()
754 		prev = substream;  in snd_pcm_new_stream()
871 	struct snd_pcm_substream *substream, *substream_next;  in snd_pcm_free_stream()  local
875 	substream = pstr->substream;  in snd_pcm_free_stream()
876 	while (substream) {  in snd_pcm_free_stream()
877 		substream_next = substream->next;  in snd_pcm_free_stream()
878 		snd_pcm_timer_done(substream);  in snd_pcm_free_stream()
879 		snd_pcm_substream_proc_done(substream);  in snd_pcm_free_stream()
880 		kfree(substream);  in snd_pcm_free_stream()
881 		substream = substream_next;  in snd_pcm_free_stream()
926 	struct snd_pcm_substream *substream;  in snd_pcm_attach_substream()  local
939 	if (pstr->substream == NULL || pstr->substream_count == 0)  in snd_pcm_attach_substream()
948 		for (substream = pcm->streams[opposite].substream; substream;  in snd_pcm_attach_substream()
949 		     substream = substream->next) {  in snd_pcm_attach_substream()
950 			if (SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
959 			substream = pstr->substream;  in snd_pcm_attach_substream()
961 			for (substream = pstr->substream; substream;  in snd_pcm_attach_substream()
962 			     substream = substream->next)  in snd_pcm_attach_substream()
963 				if (substream->number == prefer_subdevice)  in snd_pcm_attach_substream()
966 		if (! substream)  in snd_pcm_attach_substream()
968 		if (! SUBSTREAM_BUSY(substream))  in snd_pcm_attach_substream()
970 		substream->ref_count++;  in snd_pcm_attach_substream()
971 		*rsubstream = substream;  in snd_pcm_attach_substream()
975 	for (substream = pstr->substream; substream; substream = substream->next) {  in snd_pcm_attach_substream()
976 		if (!SUBSTREAM_BUSY(substream) &&  in snd_pcm_attach_substream()
978 		     substream->number == prefer_subdevice))  in snd_pcm_attach_substream()
981 	if (substream == NULL)  in snd_pcm_attach_substream()
1011 	substream->runtime = runtime;  in snd_pcm_attach_substream()
1012 	substream->private_data = pcm->private_data;  in snd_pcm_attach_substream()
1013 	substream->ref_count = 1;  in snd_pcm_attach_substream()
1014 	substream->f_flags = file->f_flags;  in snd_pcm_attach_substream()
1015 	substream->pid = get_pid(task_pid(current));  in snd_pcm_attach_substream()
1017 	*rsubstream = substream;  in snd_pcm_attach_substream()
1021 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)  in snd_pcm_detach_substream()  argument
1025 	if (PCM_RUNTIME_CHECK(substream))  in snd_pcm_detach_substream()
1027 	runtime = substream->runtime;  in snd_pcm_detach_substream()
1036 	if (substream->timer)  in snd_pcm_detach_substream()
1037 		spin_lock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1038 	substream->runtime = NULL;  in snd_pcm_detach_substream()
1039 	if (substream->timer)  in snd_pcm_detach_substream()
1040 		spin_unlock_irq(&substream->timer->lock);  in snd_pcm_detach_substream()
1042 	put_pid(substream->pid);  in snd_pcm_detach_substream()
1043 	substream->pid = NULL;  in snd_pcm_detach_substream()
1044 	substream->pstr->substream_opened--;  in snd_pcm_detach_substream()
1085 	struct snd_pcm_substream *substream;  in snd_pcm_dev_register()  local
1101 		if (pcm->streams[cidx].substream == NULL)  in snd_pcm_dev_register()
1120 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)  in snd_pcm_dev_register()
1121 			snd_pcm_timer_init(substream);  in snd_pcm_dev_register()
1136 	struct snd_pcm_substream *substream;  in snd_pcm_dev_disconnect()  local
1144 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {  in snd_pcm_dev_disconnect()
1145 			snd_pcm_stream_lock_irq(substream);  in snd_pcm_dev_disconnect()
1146 			if (substream->runtime) {  in snd_pcm_dev_disconnect()
1147 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;  in snd_pcm_dev_disconnect()
1148 				wake_up(&substream->runtime->sleep);  in snd_pcm_dev_disconnect()
1149 				wake_up(&substream->runtime->tsleep);  in snd_pcm_dev_disconnect()
1151 			snd_pcm_stream_unlock_irq(substream);  in snd_pcm_dev_disconnect()
1215 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in snd_pcm_proc_read()
1218 		if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)  in snd_pcm_proc_read()