59 #define rmidi_err(rmidi, fmt, args...) \  argument
60 	dev_err(&(rmidi)->dev, fmt, ##args)
61 #define rmidi_warn(rmidi, fmt, args...) \  argument
62 	dev_warn(&(rmidi)->dev, fmt, ##args)
63 #define rmidi_dbg(rmidi, fmt, args...) \  argument
64 	dev_dbg(&(rmidi)->dev, fmt, ##args)
191 		rmidi_warn(substream->rmidi,  in snd_rawmidi_drain_output()
227 static int assign_substream(struct snd_rawmidi *rmidi, int subdevice,  in assign_substream()  argument
232 	struct snd_rawmidi_str *s = &rmidi->streams[stream];  in assign_substream()
238 	if (!(rmidi->info_flags & info_flags[stream]))  in assign_substream()
259 static int open_substream(struct snd_rawmidi *rmidi,  in open_substream()  argument
279 		rmidi->streams[substream->stream].substream_opened++;  in open_substream()
285 static void close_substream(struct snd_rawmidi *rmidi,
289 static int rawmidi_open_priv(struct snd_rawmidi *rmidi, int subdevice, int mode,  in rawmidi_open_priv()  argument
297 		err = assign_substream(rmidi, subdevice,  in rawmidi_open_priv()
304 		err = assign_substream(rmidi, subdevice,  in rawmidi_open_priv()
312 		err = open_substream(rmidi, sinput, mode);  in rawmidi_open_priv()
317 		err = open_substream(rmidi, soutput, mode);  in rawmidi_open_priv()
320 				close_substream(rmidi, sinput, 0);  in rawmidi_open_priv()
325 	rfile->rmidi = rmidi;  in rawmidi_open_priv()
335 	struct snd_rawmidi *rmidi;  in snd_rawmidi_kernel_open()  local
342 	rmidi = snd_rawmidi_search(card, device);  in snd_rawmidi_kernel_open()
343 	if (rmidi == NULL) {  in snd_rawmidi_kernel_open()
347 	if (!try_module_get(rmidi->card->module)) {  in snd_rawmidi_kernel_open()
353 	mutex_lock(&rmidi->open_mutex);  in snd_rawmidi_kernel_open()
354 	err = rawmidi_open_priv(rmidi, subdevice, mode, rfile);  in snd_rawmidi_kernel_open()
355 	mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_kernel_open()
357 		module_put(rmidi->card->module);  in snd_rawmidi_kernel_open()
369 	struct snd_rawmidi *rmidi;  in snd_rawmidi_open()  local
381 		rmidi = snd_lookup_minor_data(iminor(inode),  in snd_rawmidi_open()
385 		rmidi = snd_lookup_oss_minor_data(iminor(inode),  in snd_rawmidi_open()
391 	if (rmidi == NULL)  in snd_rawmidi_open()
394 	if (!try_module_get(rmidi->card->module)) {  in snd_rawmidi_open()
395 		snd_card_unref(rmidi->card);  in snd_rawmidi_open()
399 	mutex_lock(&rmidi->open_mutex);  in snd_rawmidi_open()
400 	card = rmidi->card;  in snd_rawmidi_open()
413 	add_wait_queue(&rmidi->open_wait, &wait);  in snd_rawmidi_open()
416 		err = rawmidi_open_priv(rmidi, subdevice, fflags, rawmidi_file);  in snd_rawmidi_open()
427 		mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_open()
429 		mutex_lock(&rmidi->open_mutex);  in snd_rawmidi_open()
430 		if (rmidi->card->shutdown) {  in snd_rawmidi_open()
439 	remove_wait_queue(&rmidi->open_wait, &wait);  in snd_rawmidi_open()
451 	mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_open()
452 	snd_card_unref(rmidi->card);  in snd_rawmidi_open()
458 	mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_open()
459 	module_put(rmidi->card->module);  in snd_rawmidi_open()
460 	snd_card_unref(rmidi->card);  in snd_rawmidi_open()
464 static void close_substream(struct snd_rawmidi *rmidi,  in close_substream()  argument
494 	rmidi->streams[substream->stream].substream_opened--;  in close_substream()
499 	struct snd_rawmidi *rmidi;  in rawmidi_release_priv()  local
501 	rmidi = rfile->rmidi;  in rawmidi_release_priv()
502 	mutex_lock(&rmidi->open_mutex);  in rawmidi_release_priv()
504 		close_substream(rmidi, rfile->input, 1);  in rawmidi_release_priv()
508 		close_substream(rmidi, rfile->output, 1);  in rawmidi_release_priv()
511 	rfile->rmidi = NULL;  in rawmidi_release_priv()
512 	mutex_unlock(&rmidi->open_mutex);  in rawmidi_release_priv()
513 	wake_up(&rmidi->open_wait);  in rawmidi_release_priv()
519 	struct snd_rawmidi *rmidi;  in snd_rawmidi_kernel_release()  local
524 	rmidi = rfile->rmidi;  in snd_rawmidi_kernel_release()
526 	module_put(rmidi->card->module);  in snd_rawmidi_kernel_release()
534 	struct snd_rawmidi *rmidi;  in snd_rawmidi_release()  local
538 	rmidi = rfile->rmidi;  in snd_rawmidi_release()
541 	module = rmidi->card->module;  in snd_rawmidi_release()
542 	snd_card_file_remove(rmidi->card, file);  in snd_rawmidi_release()
550 	struct snd_rawmidi *rmidi;  in snd_rawmidi_info()  local
554 	rmidi = substream->rmidi;  in snd_rawmidi_info()
556 	info->card = rmidi->card->number;  in snd_rawmidi_info()
557 	info->device = rmidi->device;  in snd_rawmidi_info()
560 	info->flags = rmidi->info_flags;  in snd_rawmidi_info()
561 	strcpy(info->id, rmidi->id);  in snd_rawmidi_info()
562 	strcpy(info->name, rmidi->name);  in snd_rawmidi_info()
584 	struct snd_rawmidi *rmidi;  in snd_rawmidi_info_select()  local
589 	rmidi = snd_rawmidi_search(card, info->device);  in snd_rawmidi_info_select()
591 	if (!rmidi)  in snd_rawmidi_info_select()
595 	pstr = &rmidi->streams[info->stream];  in snd_rawmidi_info_select()
813 		rmidi_dbg(rfile->rmidi,  in snd_rawmidi_ioctl()
884 		rmidi_dbg(substream->rmidi,  in snd_rawmidi_receive()
1016 			if (rfile->rmidi->card->shutdown)  in snd_rawmidi_read()
1051 		rmidi_dbg(substream->rmidi,  in snd_rawmidi_transmit_empty()
1077 		rmidi_dbg(substream->rmidi,  in __snd_rawmidi_transmit_peek()
1150 		rmidi_dbg(substream->rmidi,  in __snd_rawmidi_transmit_ack()
1320 			if (rfile->rmidi->card->shutdown)  in snd_rawmidi_write()
1403 	struct snd_rawmidi *rmidi;  in snd_rawmidi_proc_info_read()  local
1407 	rmidi = entry->private_data;  in snd_rawmidi_proc_info_read()
1408 	snd_iprintf(buffer, "%s\n\n", rmidi->name);  in snd_rawmidi_proc_info_read()
1409 	mutex_lock(&rmidi->open_mutex);  in snd_rawmidi_proc_info_read()
1410 	if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT) {  in snd_rawmidi_proc_info_read()
1412 				    &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams,  in snd_rawmidi_proc_info_read()
1434 	if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT) {  in snd_rawmidi_proc_info_read()
1436 				    &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams,  in snd_rawmidi_proc_info_read()
1458 	mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_proc_info_read()
1478 static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi,  in snd_rawmidi_alloc_substreams()  argument
1492 		substream->rmidi = rmidi;  in snd_rawmidi_alloc_substreams()
1523 	struct snd_rawmidi *rmidi;  in snd_rawmidi_new()  local
1535 	rmidi = kzalloc(sizeof(*rmidi), GFP_KERNEL);  in snd_rawmidi_new()
1536 	if (!rmidi)  in snd_rawmidi_new()
1538 	rmidi->card = card;  in snd_rawmidi_new()
1539 	rmidi->device = device;  in snd_rawmidi_new()
1540 	mutex_init(&rmidi->open_mutex);  in snd_rawmidi_new()
1541 	init_waitqueue_head(&rmidi->open_wait);  in snd_rawmidi_new()
1542 	INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams);  in snd_rawmidi_new()
1543 	INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams);  in snd_rawmidi_new()
1546 		strlcpy(rmidi->id, id, sizeof(rmidi->id));  in snd_rawmidi_new()
1548 	snd_device_initialize(&rmidi->dev, card);  in snd_rawmidi_new()
1549 	rmidi->dev.release = release_rawmidi_device;  in snd_rawmidi_new()
1550 	dev_set_name(&rmidi->dev, "midiC%iD%i", card->number, device);  in snd_rawmidi_new()
1552 	if ((err = snd_rawmidi_alloc_substreams(rmidi,  in snd_rawmidi_new()
1553 						&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT],  in snd_rawmidi_new()
1556 		snd_rawmidi_free(rmidi);  in snd_rawmidi_new()
1559 	if ((err = snd_rawmidi_alloc_substreams(rmidi,  in snd_rawmidi_new()
1560 						&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT],  in snd_rawmidi_new()
1563 		snd_rawmidi_free(rmidi);  in snd_rawmidi_new()
1566 	if ((err = snd_device_new(card, SNDRV_DEV_RAWMIDI, rmidi, &ops)) < 0) {  in snd_rawmidi_new()
1567 		snd_rawmidi_free(rmidi);  in snd_rawmidi_new()
1571 		*rrawmidi = rmidi;  in snd_rawmidi_new()
1587 static int snd_rawmidi_free(struct snd_rawmidi *rmidi)  in snd_rawmidi_free()  argument
1589 	if (!rmidi)  in snd_rawmidi_free()
1592 	snd_info_free_entry(rmidi->proc_entry);  in snd_rawmidi_free()
1593 	rmidi->proc_entry = NULL;  in snd_rawmidi_free()
1595 	if (rmidi->ops && rmidi->ops->dev_unregister)  in snd_rawmidi_free()
1596 		rmidi->ops->dev_unregister(rmidi);  in snd_rawmidi_free()
1599 	snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);  in snd_rawmidi_free()
1600 	snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]);  in snd_rawmidi_free()
1601 	if (rmidi->private_free)  in snd_rawmidi_free()
1602 		rmidi->private_free(rmidi);  in snd_rawmidi_free()
1603 	put_device(&rmidi->dev);  in snd_rawmidi_free()
1609 	struct snd_rawmidi *rmidi = device->device_data;  in snd_rawmidi_dev_free()  local
1610 	return snd_rawmidi_free(rmidi);  in snd_rawmidi_dev_free()
1616 	struct snd_rawmidi *rmidi = device->private_data;  in snd_rawmidi_dev_seq_free()  local
1617 	rmidi->seq_dev = NULL;  in snd_rawmidi_dev_seq_free()
1626 	struct snd_rawmidi *rmidi = device->device_data;  in snd_rawmidi_dev_register()  local
1628 	if (rmidi->device >= SNDRV_RAWMIDI_DEVICES)  in snd_rawmidi_dev_register()
1631 	if (snd_rawmidi_search(rmidi->card, rmidi->device)) {  in snd_rawmidi_dev_register()
1635 	list_add_tail(&rmidi->list, &snd_rawmidi_devices);  in snd_rawmidi_dev_register()
1637 				  rmidi->card, rmidi->device,  in snd_rawmidi_dev_register()
1638 				  &snd_rawmidi_f_ops, rmidi, &rmidi->dev);  in snd_rawmidi_dev_register()
1640 		rmidi_err(rmidi, "unable to register\n");  in snd_rawmidi_dev_register()
1641 		list_del(&rmidi->list);  in snd_rawmidi_dev_register()
1645 	if (rmidi->ops && rmidi->ops->dev_register &&  in snd_rawmidi_dev_register()
1646 	    (err = rmidi->ops->dev_register(rmidi)) < 0) {  in snd_rawmidi_dev_register()
1647 		snd_unregister_device(&rmidi->dev);  in snd_rawmidi_dev_register()
1648 		list_del(&rmidi->list);  in snd_rawmidi_dev_register()
1653 	rmidi->ossreg = 0;  in snd_rawmidi_dev_register()
1654 	if ((int)rmidi->device == midi_map[rmidi->card->number]) {  in snd_rawmidi_dev_register()
1656 					    rmidi->card, 0, &snd_rawmidi_f_ops,  in snd_rawmidi_dev_register()
1657 					    rmidi) < 0) {  in snd_rawmidi_dev_register()
1658 			rmidi_err(rmidi,  in snd_rawmidi_dev_register()
1660 				  rmidi->card->number, 0);  in snd_rawmidi_dev_register()
1662 			rmidi->ossreg++;  in snd_rawmidi_dev_register()
1664 			snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIDI, rmidi->card->number, rmidi->name);  in snd_rawmidi_dev_register()
1668 	if ((int)rmidi->device == amidi_map[rmidi->card->number]) {  in snd_rawmidi_dev_register()
1670 					    rmidi->card, 1, &snd_rawmidi_f_ops,  in snd_rawmidi_dev_register()
1671 					    rmidi) < 0) {  in snd_rawmidi_dev_register()
1672 			rmidi_err(rmidi,  in snd_rawmidi_dev_register()
1674 				  rmidi->card->number, 1);  in snd_rawmidi_dev_register()
1676 			rmidi->ossreg++;  in snd_rawmidi_dev_register()
1681 	sprintf(name, "midi%d", rmidi->device);  in snd_rawmidi_dev_register()
1682 	entry = snd_info_create_card_entry(rmidi->card, name, rmidi->card->proc_root);  in snd_rawmidi_dev_register()
1684 		entry->private_data = rmidi;  in snd_rawmidi_dev_register()
1691 	rmidi->proc_entry = entry;  in snd_rawmidi_dev_register()
1693 	if (!rmidi->ops || !rmidi->ops->dev_register) { /* own registration mechanism */  in snd_rawmidi_dev_register()
1694 …if (snd_seq_device_new(rmidi->card, rmidi->device, SNDRV_SEQ_DEV_ID_MIDISYNTH, 0, &rmidi->seq_dev)…  in snd_rawmidi_dev_register()
1695 			rmidi->seq_dev->private_data = rmidi;  in snd_rawmidi_dev_register()
1696 			rmidi->seq_dev->private_free = snd_rawmidi_dev_seq_free;  in snd_rawmidi_dev_register()
1697 			sprintf(rmidi->seq_dev->name, "MIDI %d-%d", rmidi->card->number, rmidi->device);  in snd_rawmidi_dev_register()
1698 			snd_device_register(rmidi->card, rmidi->seq_dev);  in snd_rawmidi_dev_register()
1707 	struct snd_rawmidi *rmidi = device->device_data;  in snd_rawmidi_dev_disconnect()  local
1711 	mutex_lock(&rmidi->open_mutex);  in snd_rawmidi_dev_disconnect()
1712 	wake_up(&rmidi->open_wait);  in snd_rawmidi_dev_disconnect()
1713 	list_del_init(&rmidi->list);  in snd_rawmidi_dev_disconnect()
1716 		list_for_each_entry(s, &rmidi->streams[dir].substreams, list) {  in snd_rawmidi_dev_disconnect()
1723 	if (rmidi->ossreg) {  in snd_rawmidi_dev_disconnect()
1724 		if ((int)rmidi->device == midi_map[rmidi->card->number]) {  in snd_rawmidi_dev_disconnect()
1725 			snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 0);  in snd_rawmidi_dev_disconnect()
1727 			snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIDI, rmidi->card->number);  in snd_rawmidi_dev_disconnect()
1730 		if ((int)rmidi->device == amidi_map[rmidi->card->number])  in snd_rawmidi_dev_disconnect()
1731 			snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 1);  in snd_rawmidi_dev_disconnect()
1732 		rmidi->ossreg = 0;  in snd_rawmidi_dev_disconnect()
1735 	snd_unregister_device(&rmidi->dev);  in snd_rawmidi_dev_disconnect()
1736 	mutex_unlock(&rmidi->open_mutex);  in snd_rawmidi_dev_disconnect()
1749 void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,  in snd_rawmidi_set_ops()  argument
1754 	list_for_each_entry(substream, &rmidi->streams[stream].substreams, list)  in snd_rawmidi_set_ops()