Lines Matching +full:reserved +full:- +full:endpoints
2 * usbmidi.c - ALSA USB MIDI driver
4 * Copyright (c) 2002-2009 Clemens Ladisch
5 * All rights reserved.
7 * Based on the OSS usb-midi driver by NAGANO Daisuke,
111 } endpoints[MIDI_MAX_ENDPOINTS];
179 if (err < 0 && err != -ENODEV)
180 dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err);
189 switch (urb->status) {
191 case -ENOENT:
192 case -ECONNRESET:
193 case -ESHUTDOWN:
194 case -ENODEV:
195 return -ENODEV;
197 case -EPROTO:
198 case -ETIME:
199 case -EILSEQ:
200 return -EIO;
202 dev_err(&urb->dev->dev, "urb status %d\n", urb->status);
213 struct usbmidi_in_port *port = &ep->ports[portidx];
215 if (!port->substream) {
216 dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx);
219 if (!test_bit(port->substream->number, &ep->umidi->input_triggered))
221 snd_rawmidi_receive(port->substream, data, length);
228 for (; length > 0; ++data, --length)
241 struct snd_usb_midi_in_endpoint *ep = urb->context;
243 if (urb->status == 0) {
244 dump_urb("received", urb->transfer_buffer, urb->actual_length);
245 ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer,
246 urb->actual_length);
250 if (err != -ENODEV) {
251 ep->error_resubmit = 1;
252 mod_timer(&ep->umidi->error_timer,
259 urb->dev = ep->umidi->dev;
265 struct out_urb_context *context = urb->context;
266 struct snd_usb_midi_out_endpoint *ep = context->ep;
269 scoped_guard(spinlock_irqsave, &ep->buffer_lock) {
270 urb_index = context - ep->urbs;
271 ep->active_urbs &= ~(1 << urb_index);
272 if (unlikely(ep->drain_urbs)) {
273 ep->drain_urbs &= ~(1 << urb_index);
274 wake_up(&ep->drain_wait);
277 if (urb->status < 0) {
280 if (err != -ENODEV)
281 mod_timer(&ep->umidi->error_timer,
298 guard(spinlock_irqsave)(&ep->buffer_lock);
299 if (ep->umidi->disconnected)
302 urb_index = ep->next_urb;
304 if (!(ep->active_urbs & (1 << urb_index))) {
305 urb = ep->urbs[urb_index].urb;
306 urb->transfer_buffer_length = 0;
307 ep->umidi->usb_protocol_ops->output(ep, urb);
308 if (urb->transfer_buffer_length == 0)
311 dump_urb("sending", urb->transfer_buffer,
312 urb->transfer_buffer_length);
313 urb->dev = ep->umidi->dev;
316 ep->active_urbs |= 1 << urb_index;
320 if (urb_index == ep->next_urb)
323 ep->next_urb = urb_index;
340 guard(spinlock)(&umidi->disc_lock);
341 if (umidi->disconnected) {
345 struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in;
346 if (in && in->error_resubmit) {
347 in->error_resubmit = 0;
349 if (atomic_read(&in->urbs[j]->use_count))
351 in->urbs[j]->dev = umidi->dev;
352 snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC);
355 if (umidi->endpoints[i].out)
356 snd_usbmidi_do_output(umidi->endpoints[i].out);
360 /* helper function to send static data that may not DMA-able */
367 return -ENOMEM;
369 if (ep->urbs[0].urb)
370 err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe,
410 * Buggy M-Audio device: running status on input results in a packet that has
423 struct usbmidi_in_port *port = &ep->ports[cable];
431 port->running_status_length = length - 1;
433 port->running_status_length != 0 &&
436 length = port->running_status_length;
444 port->running_status_length = 0;
463 if (ep->in_sysex &&
464 cin == ep->last_cin &&
470 * Either a corrupted running status or a real note-on
477 ep->in_sysex = cin == 0x4;
478 if (!ep->in_sysex)
479 ep->last_cin = cin;
504 * into multiple 4-byte packets, but lumps everything together
542 int tmp_length = remaining - 2;
546 tmp_length--;
548 data_length = tmp_buf - buffer;
561 remaining -= source_length;
574 (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length;
579 urb->transfer_buffer_length += 4;
591 (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length;
596 urb->transfer_buffer_length += 4;
605 uint8_t p0 = port->cable;
607 port->ep->umidi->usb_protocol_ops->output_packet;
614 port->data[0] = b;
615 port->state = STATE_SYSEX_1;
619 port->data[0] = b;
620 port->state = STATE_1PARAM;
623 port->data[0] = b;
624 port->state = STATE_2PARAM_1;
628 port->state = STATE_UNKNOWN;
632 port->state = STATE_UNKNOWN;
635 switch (port->state) {
640 output_packet(urb, p0 | 0x06, port->data[0],
644 output_packet(urb, p0 | 0x07, port->data[0],
645 port->data[1], 0xf7);
648 port->state = STATE_UNKNOWN;
652 port->data[0] = b;
654 port->state = STATE_1PARAM;
656 port->state = STATE_2PARAM_1;
658 switch (port->state) {
660 if (port->data[0] < 0xf0) {
661 p0 |= port->data[0] >> 4;
664 port->state = STATE_UNKNOWN;
666 output_packet(urb, p0, port->data[0], b, 0);
669 port->data[1] = b;
670 port->state = STATE_2PARAM_2;
673 if (port->data[0] < 0xf0) {
674 p0 |= port->data[0] >> 4;
675 port->state = STATE_2PARAM_1;
678 port->state = STATE_UNKNOWN;
680 output_packet(urb, p0, port->data[0], port->data[1], b);
683 port->data[0] = b;
684 port->state = STATE_SYSEX_1;
687 port->data[1] = b;
688 port->state = STATE_SYSEX_2;
691 output_packet(urb, p0 | 0x04, port->data[0],
692 port->data[1], b);
693 port->state = STATE_SYSEX_0;
704 /* FIXME: lower-numbered ports can starve higher-numbered ports */
706 struct usbmidi_out_port *port = &ep->ports[p];
707 if (!port->active)
709 while (urb->transfer_buffer_length + 3 < ep->max_transfer) {
711 if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) {
712 port->active = 0;
772 unsigned int port = (buffer[pos] >> 4) - 1;
789 struct snd_rawmidi_substream *substream = ep->ports[0].substream;
791 if (!ep->ports[0].active)
794 msg = urb->transfer_buffer + urb->transfer_buffer_length;
795 buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1;
798 while (urb->transfer_buffer_length < buf_end) {
802 ep->ports[0].active = 0;
805 /* try to skip non-SysEx data */
820 /* it's incomplete - drop it */
831 urb->transfer_buffer_length += count + 1;
835 /* less than 9 bytes and no end byte - wait for more */
837 ep->ports[0].active = 0;
840 /* 9 bytes and no end marker in sight - malformed, skip it */
861 snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1);
870 if (!ep->ports[0].active)
872 transfer_buffer = urb->transfer_buffer;
873 count = snd_rawmidi_transmit(ep->ports[0].substream,
875 ep->max_transfer - 2);
877 ep->ports[0].active = 0;
882 urb->transfer_buffer_length = 2 + count;
905 if (!ep->ports[0].active)
907 count = snd_rawmidi_transmit(ep->ports[0].substream,
908 urb->transfer_buffer,
909 ep->max_transfer);
911 ep->ports[0].active = 0;
914 urb->transfer_buffer_length = count;
930 snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2);
944 while (buffer_length && buffer[buffer_length - 1] == 0xFD)
945 buffer_length--;
955 if (!ep->ports[0].active)
957 switch (snd_usb_get_speed(ep->umidi->dev)) {
966 count = snd_rawmidi_transmit(ep->ports[0].substream,
967 urb->transfer_buffer,
970 ep->ports[0].active = 0;
974 memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count);
975 urb->transfer_buffer_length = ep->max_transfer;
1033 if (ep->seen_f5)
1041 snd_usbmidi_input_data(ep, ep->current_port, buffer, i);
1043 buffer_length -= i;
1048 ep->seen_f5 = 1;
1050 --buffer_length;
1056 ep->current_port = (buffer[0] - 1) & 15;
1058 --buffer_length;
1060 ep->seen_f5 = 0;
1067 int port0 = ep->current_port;
1068 uint8_t *buf = urb->transfer_buffer;
1069 int buf_free = ep->max_transfer;
1073 /* round-robin, starting at the last current port */
1075 struct usbmidi_out_port *port = &ep->ports[portnum];
1077 if (!port->active)
1079 if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) {
1080 port->active = 0;
1084 if (portnum != ep->current_port) {
1087 ep->current_port = portnum;
1091 buf_free -= 2;
1096 length = snd_rawmidi_transmit(port->substream, buf, buf_free);
1099 buf_free -= length;
1104 if (buf_free < ep->max_transfer && buf_free > 0) {
1106 --buf_free;
1108 urb->transfer_buffer_length = ep->max_transfer - buf_free;
1126 intf = umidi->iface;
1127 is_light_load = intf->cur_altsetting != intf->altsetting;
1128 if (umidi->roland_load_ctl->private_value == is_light_load)
1130 hostif = &intf->altsetting[umidi->roland_load_ctl->private_value];
1132 snd_usbmidi_input_stop(&umidi->list);
1133 usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
1134 intfd->bAlternateSetting);
1135 snd_usbmidi_input_start(&umidi->list);
1141 struct snd_usb_midi *umidi = substream->rmidi->private_data;
1144 guard(rwsem_read)(&umidi->disc_rwsem);
1145 if (umidi->disconnected)
1146 return open ? -ENODEV : 0;
1148 guard(mutex)(&umidi->mutex);
1150 if (!umidi->opened[0] && !umidi->opened[1]) {
1151 if (umidi->roland_load_ctl) {
1152 ctl = umidi->roland_load_ctl;
1153 ctl->vd[0].access |=
1155 snd_ctl_notify(umidi->card,
1156 SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
1160 umidi->opened[dir]++;
1161 if (umidi->opened[1])
1162 snd_usbmidi_input_start(&umidi->list);
1164 umidi->opened[dir]--;
1165 if (!umidi->opened[1])
1166 snd_usbmidi_input_stop(&umidi->list);
1167 if (!umidi->opened[0] && !umidi->opened[1]) {
1168 if (umidi->roland_load_ctl) {
1169 ctl = umidi->roland_load_ctl;
1170 ctl->vd[0].access &=
1172 snd_ctl_notify(umidi->card,
1173 SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
1182 struct snd_usb_midi *umidi = substream->rmidi->private_data;
1187 if (umidi->endpoints[i].out)
1189 if (umidi->endpoints[i].out->ports[j].substream == substream) {
1190 port = &umidi->endpoints[i].out->ports[j];
1194 return -ENXIO;
1196 substream->runtime->private_data = port;
1197 port->state = STATE_UNKNOWN;
1203 struct usbmidi_out_port *port = substream->runtime->private_data;
1205 flush_work(&port->ep->work);
1213 (struct usbmidi_out_port *)substream->runtime->private_data;
1215 port->active = up;
1217 if (port->ep->umidi->disconnected) {
1223 queue_work(system_highpri_wq, &port->ep->work);
1229 struct usbmidi_out_port *port = substream->runtime->private_data;
1230 struct snd_usb_midi_out_endpoint *ep = port->ep;
1235 if (ep->umidi->disconnected)
1241 spin_lock_irq(&ep->buffer_lock);
1242 drain_urbs = ep->active_urbs;
1244 ep->drain_urbs |= drain_urbs;
1246 prepare_to_wait(&ep->drain_wait, &wait,
1248 spin_unlock_irq(&ep->buffer_lock);
1250 spin_lock_irq(&ep->buffer_lock);
1251 drain_urbs &= ep->drain_urbs;
1253 finish_wait(&ep->drain_wait, &wait);
1255 port->active = 0;
1256 spin_unlock_irq(&ep->buffer_lock);
1272 struct snd_usb_midi *umidi = substream->rmidi->private_data;
1275 set_bit(substream->number, &umidi->input_triggered);
1277 clear_bit(substream->number, &umidi->input_triggered);
1296 usb_free_coherent(umidi->dev, buffer_length,
1297 urb->transfer_buffer, urb->transfer_dma);
1310 if (ep->urbs[i])
1311 free_urb_and_buffer(ep->umidi, ep->urbs[i],
1312 ep->urbs[i]->transfer_buffer_length);
1330 rep->in = NULL;
1333 return -ENOMEM;
1334 ep->umidi = umidi;
1337 ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1338 if (!ep->urbs[i]) {
1339 err = -ENOMEM;
1343 if (ep_info->in_interval)
1344 pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep);
1346 pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep);
1347 length = usb_maxpacket(umidi->dev, pipe);
1349 buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL,
1350 &ep->urbs[i]->transfer_dma);
1352 err = -ENOMEM;
1355 if (ep_info->in_interval)
1356 usb_fill_int_urb(ep->urbs[i], umidi->dev,
1359 ep, ep_info->in_interval);
1361 usb_fill_bulk_urb(ep->urbs[i], umidi->dev,
1364 ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1365 err = usb_urb_ep_type_check(ep->urbs[i]);
1367 dev_err(&umidi->dev->dev, "invalid MIDI in EP %x\n",
1368 ep_info->in_ep);
1373 rep->in = ep;
1390 if (ep->urbs[i].urb) {
1391 free_urb_and_buffer(ep->umidi, ep->urbs[i].urb,
1392 ep->max_transfer);
1393 ep->urbs[i].urb = NULL;
1416 rep->out = NULL;
1419 return -ENOMEM;
1420 ep->umidi = umidi;
1423 ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL);
1424 if (!ep->urbs[i].urb) {
1425 err = -ENOMEM;
1428 ep->urbs[i].ep = ep;
1430 if (ep_info->out_interval)
1431 pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep);
1433 pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep);
1434 switch (umidi->usb_id) {
1436 ep->max_transfer = usb_maxpacket(umidi->dev, pipe);
1447 case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */
1449 ep->max_transfer = 4;
1454 case USB_ID(0x0644, 0x800e): /* Tascam US-122L */
1455 case USB_ID(0x0644, 0x800f): /* Tascam US-144 */
1456 ep->max_transfer = 9;
1460 buffer = usb_alloc_coherent(umidi->dev,
1461 ep->max_transfer, GFP_KERNEL,
1462 &ep->urbs[i].urb->transfer_dma);
1464 err = -ENOMEM;
1467 if (ep_info->out_interval)
1468 usb_fill_int_urb(ep->urbs[i].urb, umidi->dev,
1469 pipe, buffer, ep->max_transfer,
1471 &ep->urbs[i], ep_info->out_interval);
1473 usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev,
1474 pipe, buffer, ep->max_transfer,
1476 &ep->urbs[i]);
1477 err = usb_urb_ep_type_check(ep->urbs[i].urb);
1479 dev_err(&umidi->dev->dev, "invalid MIDI out EP %x\n",
1480 ep_info->out_ep);
1483 ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1486 spin_lock_init(&ep->buffer_lock);
1487 INIT_WORK(&ep->work, snd_usbmidi_out_work);
1488 init_waitqueue_head(&ep->drain_wait);
1491 if (ep_info->out_cables & (1 << i)) {
1492 ep->ports[i].ep = ep;
1493 ep->ports[i].cable = i << 4;
1496 if (umidi->usb_protocol_ops->init_out_endpoint)
1497 umidi->usb_protocol_ops->init_out_endpoint(ep);
1499 rep->out = ep;
1514 if (!umidi->disconnected)
1515 snd_usbmidi_disconnect(&umidi->list);
1518 struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i];
1519 kfree(ep->out);
1521 mutex_destroy(&umidi->mutex);
1539 scoped_guard(rwsem_write, &umidi->disc_rwsem) {
1540 guard(spinlock_irq)(&umidi->disc_lock);
1541 umidi->disconnected = 1;
1544 timer_shutdown_sync(&umidi->error_timer);
1547 struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i];
1548 if (ep->out)
1549 cancel_work_sync(&ep->out->work);
1550 if (ep->out) {
1552 usb_kill_urb(ep->out->urbs[j].urb);
1553 if (umidi->usb_protocol_ops->finish_out_endpoint)
1554 umidi->usb_protocol_ops->finish_out_endpoint(ep->out);
1555 ep->out->active_urbs = 0;
1556 if (ep->out->drain_urbs) {
1557 ep->out->drain_urbs = 0;
1558 wake_up(&ep->out->drain_wait);
1561 if (ep->in)
1563 usb_kill_urb(ep->in->urbs[j]);
1564 /* free endpoints here; later call can result in Oops */
1565 if (ep->out)
1566 snd_usbmidi_out_endpoint_clear(ep->out);
1567 if (ep->in) {
1568 snd_usbmidi_in_endpoint_delete(ep->in);
1569 ep->in = NULL;
1577 struct snd_usb_midi *umidi = rmidi->private_data;
1587 list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams,
1589 if (substream->number == number)
1650 /* Roland UA-100 */
1652 /* Roland SC-8850 */
1659 /* Roland U-8 */
1662 /* Roland SC-8820 */
1666 /* Roland SK-500 */
1670 /* Roland SC-D70 */
1674 /* Edirol UM-880 */
1676 /* Edirol SD-90 */
1681 /* Edirol UM-550 */
1683 /* Edirol SD-20 */
1687 /* Edirol SD-80 */
1692 /* Edirol UA-700 */
1703 /* BOSS GS-10 */
1706 /* Edirol UA-1000 */
1709 /* Edirol UR-80 */
1713 /* Edirol PCR-A */
1717 /* BOSS GT-PRO */
1719 /* Edirol UM-3EX */
1721 /* Roland VG-99 */
1724 /* Cakewalk Sonar V-Studio 100 */
1727 /* Roland VB-99 */
1730 /* Roland A-PRO */
1734 /* Roland SD-50 */
1738 /* Roland OCTA-CAPTURE */
1743 /* Roland SPD-SX */
1746 /* Roland A-Series */
1749 /* Roland INTEGRA-7 */
1752 /* M-Audio MidiSport 8x8 */
1780 if (snd_usbmidi_port_info[i].id == umidi->usb_id &&
1790 struct snd_usb_midi *umidi = rmidi->private_data;
1796 seq_port_info->type = port_info->seq_flags;
1797 seq_port_info->midi_voices = port_info->voices;
1804 unsigned char *extra = hostif->extra;
1805 int extralen = hostif->extralen;
1813 if (h->bDescriptorType != USB_DT_CS_INTERFACE)
1817 if (h->bLength >= sizeof(*outjd) &&
1818 outjd->bDescriptorSubtype == UAC_MIDI_OUT_JACK &&
1819 outjd->bJackID == jack_id) {
1820 sz = USB_DT_MIDI_OUT_SIZE(outjd->bNrInputPins);
1821 if (outjd->bLength < sz)
1823 return *(extra + sz - 1);
1827 if (injd->bLength >= sizeof(*injd) &&
1828 injd->bDescriptorSubtype == UAC_MIDI_IN_JACK &&
1829 injd->bJackID == jack_id)
1830 return injd->iJack;
1835 extralen -= extra[0];
1858 dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream,
1863 intf = umidi->iface;
1865 hostif = intf->cur_altsetting;
1868 res = usb_string(umidi->dev, iJack, jack_name_buf,
1877 strncmp(umidi->card->shortname, jack_name, strlen(umidi->card->shortname)) != 0) {
1878 name_format = port_info ? port_info->name :
1880 snprintf(substream->name, sizeof(substream->name),
1881 name_format, umidi->card->shortname, jack_name, number + 1);
1886 strscpy(substream->name, jack_name);
1893 * Creates the endpoints and their ports.
1896 struct snd_usb_midi_endpoint_info *endpoints)
1902 if (endpoints[i].out_cables) {
1904 &endpoints[i],
1905 &umidi->endpoints[i]);
1909 if (endpoints[i].in_cables) {
1911 &endpoints[i],
1912 &umidi->endpoints[i]);
1918 if (endpoints[i].out_cables & (1 << j)) {
1922 endpoints[i].assoc_out_jacks[j],
1923 &umidi->endpoints[i].out->ports[j].substream);
1926 if (endpoints[i].in_cables & (1 << j)) {
1930 endpoints[i].assoc_in_jacks[j],
1931 &umidi->endpoints[i].in->ports[j].substream);
1936 dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n",
1944 unsigned char *extra = hostep->extra;
1945 int extralen = hostep->extralen;
1951 if (ms_ep->bLength > 3 &&
1952 ms_ep->bDescriptorType == USB_DT_CS_ENDPOINT &&
1953 ms_ep->bDescriptorSubtype == UAC_MS_GENERAL)
1957 extralen -= extra[0];
1967 struct snd_usb_midi_endpoint_info *endpoints)
1978 intf = umidi->iface;
1980 return -ENXIO;
1981 hostif = &intf->altsetting[0];
1983 ms_header = (struct usb_ms_header_descriptor *)hostif->extra;
1984 if (hostif->extralen >= 7 &&
1985 ms_header->bLength >= 7 &&
1986 ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
1987 ms_header->bDescriptorSubtype == UAC_HEADER)
1988 dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n",
1989 ((uint8_t *)&ms_header->bcdMSC)[1], ((uint8_t *)&ms_header->bcdMSC)[0]);
1991 dev_warn(&umidi->dev->dev,
1995 for (i = 0; i < intfd->bNumEndpoints; ++i) {
1996 hostep = &hostif->endpoint[i];
2003 if (ms_ep->bLength <= sizeof(*ms_ep))
2005 if (ms_ep->bNumEmbMIDIJack > 0x10)
2007 if (ms_ep->bLength < sizeof(*ms_ep) + ms_ep->bNumEmbMIDIJack)
2010 if (endpoints[epidx].out_ep) {
2012 dev_warn(&umidi->dev->dev,
2013 "too many endpoints\n");
2017 endpoints[epidx].out_ep = usb_endpoint_num(ep);
2019 endpoints[epidx].out_interval = ep->bInterval;
2020 else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
2026 endpoints[epidx].out_interval = 1;
2027 endpoints[epidx].out_cables =
2028 (1 << ms_ep->bNumEmbMIDIJack) - 1;
2029 for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j)
2030 endpoints[epidx].assoc_out_jacks[j] = ms_ep->baAssocJackID[j];
2031 for (; j < ARRAY_SIZE(endpoints[epidx].assoc_out_jacks); ++j)
2032 endpoints[epidx].assoc_out_jacks[j] = -1;
2033 dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
2034 ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
2036 if (endpoints[epidx].in_ep) {
2038 dev_warn(&umidi->dev->dev,
2039 "too many endpoints\n");
2043 endpoints[epidx].in_ep = usb_endpoint_num(ep);
2045 endpoints[epidx].in_interval = ep->bInterval;
2046 else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
2047 endpoints[epidx].in_interval = 1;
2048 endpoints[epidx].in_cables =
2049 (1 << ms_ep->bNumEmbMIDIJack) - 1;
2050 for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j)
2051 endpoints[epidx].assoc_in_jacks[j] = ms_ep->baAssocJackID[j];
2052 for (; j < ARRAY_SIZE(endpoints[epidx].assoc_in_jacks); ++j)
2053 endpoints[epidx].assoc_in_jacks[j] = -1;
2054 dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
2055 ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
2072 value->value.enumerated.item[0] = kcontrol->private_value;
2082 if (value->value.enumerated.item[0] > 1)
2083 return -EINVAL;
2084 guard(mutex)(&umidi->mutex);
2085 changed = value->value.enumerated.item[0] != kcontrol->private_value;
2087 kcontrol->private_value = value->value.enumerated.item[0];
2110 intf = umidi->iface;
2111 if (!intf || intf->num_altsetting != 2)
2114 hostif = &intf->altsetting[1];
2116 /* If either or both of the endpoints support interrupt transfer,
2119 if (intfd->bNumEndpoints != 2 ||
2120 !((get_endpoint(hostif, 0)->bmAttributes &
2122 (get_endpoint(hostif, 1)->bmAttributes &
2126 dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n",
2127 intfd->bAlternateSetting);
2128 usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
2129 intfd->bAlternateSetting);
2131 umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi);
2132 if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0)
2133 umidi->roland_load_ctl = NULL;
2137 * Try to find any usable endpoints in the interface.
2149 if (USB_ID_VENDOR(umidi->usb_id) == 0x0582)
2155 intf = umidi->iface;
2156 if (!intf || intf->num_altsetting < 1)
2157 return -ENOENT;
2158 hostif = intf->cur_altsetting;
2161 for (i = 0; i < intfd->bNumEndpoints; ++i) {
2170 endpoint[out_eps].out_interval = epd->bInterval;
2177 endpoint[in_eps].in_interval = epd->bInterval;
2181 return (out_eps || in_eps) ? 0 : -ENOENT;
2185 * Detects the endpoints for one-port-per-endpoint protocols.
2188 struct snd_usb_midi_endpoint_info *endpoints)
2192 err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS);
2194 if (endpoints[i].out_ep)
2195 endpoints[i].out_cables = 0x0001;
2196 if (endpoints[i].in_ep)
2197 endpoints[i].in_cables = 0x0001;
2203 * Detects the endpoints and ports of Yamaha devices.
2213 intf = umidi->iface;
2215 return -ENOENT;
2216 hostif = intf->altsetting;
2218 if (intfd->bNumEndpoints < 1)
2219 return -ENOENT;
2225 for (cs_desc = hostif->extra;
2226 cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
2230 endpoint->in_cables =
2231 (endpoint->in_cables << 1) | 1;
2233 endpoint->out_cables =
2234 (endpoint->out_cables << 1) | 1;
2237 if (!endpoint->in_cables && !endpoint->out_cables)
2238 return -ENOENT;
2244 * Detects the endpoints and ports of Roland devices.
2253 intf = umidi->iface;
2255 return -ENOENT;
2256 hostif = intf->altsetting;
2261 for (cs_desc = hostif->extra;
2262 cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
2270 endpoint->in_cables = (1 << cs_desc[4]) - 1;
2271 endpoint->out_cables = (1 << cs_desc[5]) - 1;
2280 return -ENODEV;
2284 * Creates the endpoints and their ports for Midiman devices.
2296 intf = umidi->iface;
2298 return -ENOENT;
2299 hostif = intf->altsetting;
2303 * numbers, so we have to identify the endpoints by their index in
2307 * bulk output endpoint for even-numbered ports, and one for odd-
2308 * numbered ports. Both bulk output endpoints have corresponding
2309 * input bulk endpoints (at indices 1 and 3) which aren't used.
2311 if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) {
2312 dev_dbg(&umidi->dev->dev, "not enough endpoints\n");
2313 return -ENOENT;
2318 dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n");
2319 return -ENXIO;
2323 dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n");
2324 return -ENXIO;
2326 if (endpoint->out_cables > 0x0001) {
2330 dev_dbg(&umidi->dev->dev,
2332 return -ENXIO;
2336 ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress &
2339 ep_info.out_cables = endpoint->out_cables & 0x5555;
2341 &umidi->endpoints[0]);
2345 ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress &
2347 ep_info.in_interval = get_endpoint(hostif, 0)->bInterval;
2348 ep_info.in_cables = endpoint->in_cables;
2350 &umidi->endpoints[0]);
2354 if (endpoint->out_cables > 0x0001) {
2355 ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress &
2357 ep_info.out_cables = endpoint->out_cables & 0xaaaa;
2359 &umidi->endpoints[1]);
2365 if (endpoint->out_cables & (1 << cable))
2369 -1 /* prevent trying to find jack */,
2370 &umidi->endpoints[cable & 1].out->ports[cable].substream);
2371 if (endpoint->in_cables & (1 << cable))
2375 -1 /* prevent trying to find jack */,
2376 &umidi->endpoints[0].in->ports[cable].substream);
2391 err = snd_rawmidi_new(umidi->card, "USB MIDI",
2392 umidi->next_midi_device++,
2396 strscpy(rmidi->name, umidi->card->shortname);
2397 rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
2400 rmidi->ops = &snd_usbmidi_ops;
2401 rmidi->private_data = umidi;
2402 rmidi->private_free = snd_usbmidi_rawmidi_free;
2408 umidi->rmidi = rmidi;
2421 if (!umidi->input_running)
2424 struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i];
2425 if (ep->in)
2427 usb_kill_urb(ep->in->urbs[j]);
2429 umidi->input_running = 0;
2441 struct urb *urb = ep->urbs[i];
2442 scoped_guard(spinlock_irqsave, &umidi->disc_lock) {
2443 if (!atomic_read(&urb->use_count)) {
2444 urb->dev = ep->umidi->dev;
2460 if (umidi->input_running || !umidi->opened[1])
2463 snd_usbmidi_input_start_ep(umidi, umidi->endpoints[i].in);
2464 umidi->input_running = 1;
2476 guard(mutex)(&umidi->mutex);
2489 guard(mutex)(&umidi->mutex);
2505 struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS];
2511 return -ENOMEM;
2512 umidi->dev = interface_to_usbdev(iface);
2513 umidi->card = card;
2514 umidi->iface = iface;
2515 umidi->quirk = quirk;
2516 umidi->usb_protocol_ops = &snd_usbmidi_standard_ops;
2518 umidi->next_midi_device = *num_rawmidis;
2519 spin_lock_init(&umidi->disc_lock);
2520 init_rwsem(&umidi->disc_rwsem);
2521 mutex_init(&umidi->mutex);
2523 usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor),
2524 le16_to_cpu(umidi->dev->descriptor.idProduct));
2525 umidi->usb_id = usb_id;
2526 timer_setup(&umidi->error_timer, snd_usbmidi_error_timer, 0);
2529 memset(endpoints, 0, sizeof(endpoints));
2530 switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) {
2532 err = snd_usbmidi_get_ms_info(umidi, endpoints);
2533 if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */
2534 umidi->usb_protocol_ops =
2538 umidi->usb_protocol_ops = &snd_usbmidi_122l_ops;
2541 memcpy(&endpoints[0], quirk->data,
2543 err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
2546 err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]);
2549 err = snd_usbmidi_detect_roland(umidi, &endpoints[0]);
2552 umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops;
2553 memcpy(&endpoints[0], quirk->data,
2558 umidi->usb_protocol_ops = &snd_usbmidi_novation_ops;
2559 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2562 umidi->usb_protocol_ops = &snd_usbmidi_raw_ops;
2564 * Interface 1 contains isochronous endpoints, but with the same
2568 * attempts to submit bulk/interrupt URBs to the endpoints in
2572 if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */
2573 usb_set_interface(umidi->dev, 0, 0);
2574 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2577 umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops;
2578 memcpy(&endpoints[0], quirk->data,
2580 err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
2583 umidi->usb_protocol_ops = &snd_usbmidi_cme_ops;
2584 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2587 umidi->usb_protocol_ops = &snd_usbmidi_akai_ops;
2588 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2589 /* endpoint 1 is input-only */
2590 endpoints[1].out_cables = 0;
2593 umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops;
2596 err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0),
2601 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2604 umidi->usb_protocol_ops = &snd_usbmidi_ch345_broken_sysex_ops;
2605 err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
2608 dev_err(&umidi->dev->dev, "invalid quirk type %d\n",
2609 quirk->type);
2610 err = -ENXIO;
2620 out_ports += hweight16(endpoints[i].out_cables);
2621 in_ports += hweight16(endpoints[i].in_cables);
2628 if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN)
2629 err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]);
2631 err = snd_usbmidi_create_endpoints(umidi, endpoints);
2635 usb_autopm_get_interface_no_resume(umidi->iface);
2637 list_add_tail(&umidi->list, midi_list);
2639 *num_rawmidis = umidi->next_midi_device;