2 * usbmidi.c - ALSA USB MIDI driver
4 * Copyright (c) 2002-2009 Clemens Ladisch
7 * Based on the OSS usb-midi driver by NAGANO Daisuke,
8 * NetBSD's umidi driver by Takuya SHIOZAKI,
9 * the "USB Device Class Definition for MIDI Devices" by Roland
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * Alternatively, this software may be distributed and/or modified under the
21 * terms of the GNU General Public License as published by the Free Software
22 * Foundation; either version 2 of the License, or (at your option) any later
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #include <linux/kernel.h>
39 #include <linux/types.h>
40 #include <linux/bitops.h>
41 #include <linux/interrupt.h>
42 #include <linux/spinlock.h>
43 #include <linux/string.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/timer.h>
47 #include <linux/usb.h>
48 #include <linux/wait.h>
49 #include <linux/usb/audio.h>
51 #include <sound/core.h>
52 #include <sound/control.h>
53 #include <sound/rawmidi.h>
54 #include <sound/asequencer.h>
59 * define this to log all USB packets
61 /* #define DUMP_PACKETS */
64 * how long to wait after some USB errors, so that khubd can disconnect() us
65 * without too many spurious errors
67 #define ERROR_DELAY_JIFFIES (HZ / 10)
73 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
74 MODULE_DESCRIPTION("USB Audio/MIDI helper module");
75 MODULE_LICENSE("Dual BSD/GPL");
78 struct usb_ms_header_descriptor
{
81 __u8 bDescriptorSubtype
;
84 } __attribute__ ((packed
));
86 struct usb_ms_endpoint_descriptor
{
89 __u8 bDescriptorSubtype
;
91 __u8 baAssocJackID
[0];
92 } __attribute__ ((packed
));
94 struct snd_usb_midi_in_endpoint
;
95 struct snd_usb_midi_out_endpoint
;
96 struct snd_usb_midi_endpoint
;
98 struct usb_protocol_ops
{
99 void (*input
)(struct snd_usb_midi_in_endpoint
*, uint8_t*, int);
100 void (*output
)(struct snd_usb_midi_out_endpoint
*ep
, struct urb
*urb
);
101 void (*output_packet
)(struct urb
*, uint8_t, uint8_t, uint8_t, uint8_t);
102 void (*init_out_endpoint
)(struct snd_usb_midi_out_endpoint
*);
103 void (*finish_out_endpoint
)(struct snd_usb_midi_out_endpoint
*);
106 struct snd_usb_midi
{
107 struct usb_device
*dev
;
108 struct snd_card
*card
;
109 struct usb_interface
*iface
;
110 const struct snd_usb_audio_quirk
*quirk
;
111 struct snd_rawmidi
*rmidi
;
112 struct usb_protocol_ops
* usb_protocol_ops
;
113 struct list_head list
;
114 struct timer_list error_timer
;
115 spinlock_t disc_lock
;
118 int next_midi_device
;
120 struct snd_usb_midi_endpoint
{
121 struct snd_usb_midi_out_endpoint
*out
;
122 struct snd_usb_midi_in_endpoint
*in
;
123 } endpoints
[MIDI_MAX_ENDPOINTS
];
124 unsigned long input_triggered
;
126 unsigned char disconnected
;
128 struct snd_kcontrol
*roland_load_ctl
;
131 struct snd_usb_midi_out_endpoint
{
132 struct snd_usb_midi
* umidi
;
133 struct out_urb_context
{
135 struct snd_usb_midi_out_endpoint
*ep
;
137 unsigned int active_urbs
;
138 unsigned int drain_urbs
;
139 int max_transfer
; /* size of urb buffer */
140 struct tasklet_struct tasklet
;
141 unsigned int next_urb
;
142 spinlock_t buffer_lock
;
144 struct usbmidi_out_port
{
145 struct snd_usb_midi_out_endpoint
* ep
;
146 struct snd_rawmidi_substream
*substream
;
148 uint8_t cable
; /* cable number << 4 */
150 #define STATE_UNKNOWN 0
151 #define STATE_1PARAM 1
152 #define STATE_2PARAM_1 2
153 #define STATE_2PARAM_2 3
154 #define STATE_SYSEX_0 4
155 #define STATE_SYSEX_1 5
156 #define STATE_SYSEX_2 6
161 wait_queue_head_t drain_wait
;
164 struct snd_usb_midi_in_endpoint
{
165 struct snd_usb_midi
* umidi
;
166 struct urb
* urbs
[INPUT_URBS
];
167 struct usbmidi_in_port
{
168 struct snd_rawmidi_substream
*substream
;
169 u8 running_status_length
;
176 static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint
* ep
);
178 static const uint8_t snd_usbmidi_cin_length
[] = {
179 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
183 * Submits the URB, with error handling.
185 static int snd_usbmidi_submit_urb(struct urb
* urb
, gfp_t flags
)
187 int err
= usb_submit_urb(urb
, flags
);
188 if (err
< 0 && err
!= -ENODEV
)
189 snd_printk(KERN_ERR
"usb_submit_urb: %d\n", err
);
194 * Error handling for URB completion functions.
196 static int snd_usbmidi_urb_error(int status
)
199 /* manually unlinked, or device gone */
205 /* errors that might occur during unplugging */
211 snd_printk(KERN_ERR
"urb status %d\n", status
);
212 return 0; /* continue */
217 * Receives a chunk of MIDI data.
219 static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint
* ep
, int portidx
,
220 uint8_t* data
, int length
)
222 struct usbmidi_in_port
* port
= &ep
->ports
[portidx
];
224 if (!port
->substream
) {
225 snd_printd("unexpected port %d!\n", portidx
);
228 if (!test_bit(port
->substream
->number
, &ep
->umidi
->input_triggered
))
230 snd_rawmidi_receive(port
->substream
, data
, length
);
234 static void dump_urb(const char *type
, const u8
*data
, int length
)
236 snd_printk(KERN_DEBUG
"%s packet: [", type
);
237 for (; length
> 0; ++data
, --length
)
238 printk(" %02x", *data
);
242 #define dump_urb(type, data, length) /* nothing */
246 * Processes the data read from the device.
248 static void snd_usbmidi_in_urb_complete(struct urb
* urb
)
250 struct snd_usb_midi_in_endpoint
* ep
= urb
->context
;
252 if (urb
->status
== 0) {
253 dump_urb("received", urb
->transfer_buffer
, urb
->actual_length
);
254 ep
->umidi
->usb_protocol_ops
->input(ep
, urb
->transfer_buffer
,
257 int err
= snd_usbmidi_urb_error(urb
->status
);
259 if (err
!= -ENODEV
) {
260 ep
->error_resubmit
= 1;
261 mod_timer(&ep
->umidi
->error_timer
,
262 jiffies
+ ERROR_DELAY_JIFFIES
);
268 urb
->dev
= ep
->umidi
->dev
;
269 snd_usbmidi_submit_urb(urb
, GFP_ATOMIC
);
272 static void snd_usbmidi_out_urb_complete(struct urb
* urb
)
274 struct out_urb_context
*context
= urb
->context
;
275 struct snd_usb_midi_out_endpoint
* ep
= context
->ep
;
276 unsigned int urb_index
;
278 spin_lock(&ep
->buffer_lock
);
279 urb_index
= context
- ep
->urbs
;
280 ep
->active_urbs
&= ~(1 << urb_index
);
281 if (unlikely(ep
->drain_urbs
)) {
282 ep
->drain_urbs
&= ~(1 << urb_index
);
283 wake_up(&ep
->drain_wait
);
285 spin_unlock(&ep
->buffer_lock
);
286 if (urb
->status
< 0) {
287 int err
= snd_usbmidi_urb_error(urb
->status
);
290 mod_timer(&ep
->umidi
->error_timer
,
291 jiffies
+ ERROR_DELAY_JIFFIES
);
295 snd_usbmidi_do_output(ep
);
299 * This is called when some data should be transferred to the device
300 * (from one or more substreams).
302 static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint
* ep
)
304 unsigned int urb_index
;
308 spin_lock_irqsave(&ep
->buffer_lock
, flags
);
309 if (ep
->umidi
->disconnected
) {
310 spin_unlock_irqrestore(&ep
->buffer_lock
, flags
);
314 urb_index
= ep
->next_urb
;
316 if (!(ep
->active_urbs
& (1 << urb_index
))) {
317 urb
= ep
->urbs
[urb_index
].urb
;
318 urb
->transfer_buffer_length
= 0;
319 ep
->umidi
->usb_protocol_ops
->output(ep
, urb
);
320 if (urb
->transfer_buffer_length
== 0)
323 dump_urb("sending", urb
->transfer_buffer
,
324 urb
->transfer_buffer_length
);
325 urb
->dev
= ep
->umidi
->dev
;
326 if (snd_usbmidi_submit_urb(urb
, GFP_ATOMIC
) < 0)
328 ep
->active_urbs
|= 1 << urb_index
;
330 if (++urb_index
>= OUTPUT_URBS
)
332 if (urb_index
== ep
->next_urb
)
335 ep
->next_urb
= urb_index
;
336 spin_unlock_irqrestore(&ep
->buffer_lock
, flags
);
339 static void snd_usbmidi_out_tasklet(unsigned long data
)
341 struct snd_usb_midi_out_endpoint
* ep
= (struct snd_usb_midi_out_endpoint
*) data
;
343 snd_usbmidi_do_output(ep
);
346 /* called after transfers had been interrupted due to some USB error */
347 static void snd_usbmidi_error_timer(unsigned long data
)
349 struct snd_usb_midi
*umidi
= (struct snd_usb_midi
*)data
;
352 spin_lock(&umidi
->disc_lock
);
353 if (umidi
->disconnected
) {
354 spin_unlock(&umidi
->disc_lock
);
357 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
358 struct snd_usb_midi_in_endpoint
*in
= umidi
->endpoints
[i
].in
;
359 if (in
&& in
->error_resubmit
) {
360 in
->error_resubmit
= 0;
361 for (j
= 0; j
< INPUT_URBS
; ++j
) {
362 in
->urbs
[j
]->dev
= umidi
->dev
;
363 snd_usbmidi_submit_urb(in
->urbs
[j
], GFP_ATOMIC
);
366 if (umidi
->endpoints
[i
].out
)
367 snd_usbmidi_do_output(umidi
->endpoints
[i
].out
);
369 spin_unlock(&umidi
->disc_lock
);
372 /* helper function to send static data that may not DMA-able */
373 static int send_bulk_static_data(struct snd_usb_midi_out_endpoint
* ep
,
374 const void *data
, int len
)
377 void *buf
= kmemdup(data
, len
, GFP_KERNEL
);
380 dump_urb("sending", buf
, len
);
382 err
= usb_bulk_msg(ep
->umidi
->dev
, ep
->urbs
[0].urb
->pipe
,
383 buf
, len
, NULL
, 250);
389 * Standard USB MIDI protocol: see the spec.
390 * Midiman protocol: like the standard protocol, but the control byte is the
391 * fourth byte in each packet, and uses length instead of CIN.
394 static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint
* ep
,
395 uint8_t* buffer
, int buffer_length
)
399 for (i
= 0; i
+ 3 < buffer_length
; i
+= 4)
400 if (buffer
[i
] != 0) {
401 int cable
= buffer
[i
] >> 4;
402 int length
= snd_usbmidi_cin_length
[buffer
[i
] & 0x0f];
403 snd_usbmidi_input_data(ep
, cable
, &buffer
[i
+ 1], length
);
407 static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint
* ep
,
408 uint8_t* buffer
, int buffer_length
)
412 for (i
= 0; i
+ 3 < buffer_length
; i
+= 4)
413 if (buffer
[i
+ 3] != 0) {
414 int port
= buffer
[i
+ 3] >> 4;
415 int length
= buffer
[i
+ 3] & 3;
416 snd_usbmidi_input_data(ep
, port
, &buffer
[i
], length
);
421 * Buggy M-Audio device: running status on input results in a packet that has
422 * the data bytes but not the status byte and that is marked with CIN 4.
424 static void snd_usbmidi_maudio_broken_running_status_input(
425 struct snd_usb_midi_in_endpoint
* ep
,
426 uint8_t* buffer
, int buffer_length
)
430 for (i
= 0; i
+ 3 < buffer_length
; i
+= 4)
431 if (buffer
[i
] != 0) {
432 int cable
= buffer
[i
] >> 4;
433 u8 cin
= buffer
[i
] & 0x0f;
434 struct usbmidi_in_port
*port
= &ep
->ports
[cable
];
437 length
= snd_usbmidi_cin_length
[cin
];
438 if (cin
== 0xf && buffer
[i
+ 1] >= 0xf8)
439 ; /* realtime msg: no running status change */
440 else if (cin
>= 0x8 && cin
<= 0xe)
442 port
->running_status_length
= length
- 1;
443 else if (cin
== 0x4 &&
444 port
->running_status_length
!= 0 &&
445 buffer
[i
+ 1] < 0x80)
446 /* CIN 4 that is not a SysEx */
447 length
= port
->running_status_length
;
450 * All other msgs cannot begin running status.
451 * (A channel msg sent as two or three CIN 0xF
452 * packets could in theory, but this device
453 * doesn't use this format.)
455 port
->running_status_length
= 0;
456 snd_usbmidi_input_data(ep
, cable
, &buffer
[i
+ 1], length
);
461 * CME protocol: like the standard protocol, but SysEx commands are sent as a
462 * single USB packet preceded by a 0x0F byte.
464 static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint
*ep
,
465 uint8_t *buffer
, int buffer_length
)
467 if (buffer_length
< 2 || (buffer
[0] & 0x0f) != 0x0f)
468 snd_usbmidi_standard_input(ep
, buffer
, buffer_length
);
470 snd_usbmidi_input_data(ep
, buffer
[0] >> 4,
471 &buffer
[1], buffer_length
- 1);
475 * Adds one USB MIDI packet to the output buffer.
477 static void snd_usbmidi_output_standard_packet(struct urb
* urb
, uint8_t p0
,
478 uint8_t p1
, uint8_t p2
, uint8_t p3
)
481 uint8_t* buf
= (uint8_t*)urb
->transfer_buffer
+ urb
->transfer_buffer_length
;
486 urb
->transfer_buffer_length
+= 4;
490 * Adds one Midiman packet to the output buffer.
492 static void snd_usbmidi_output_midiman_packet(struct urb
* urb
, uint8_t p0
,
493 uint8_t p1
, uint8_t p2
, uint8_t p3
)
496 uint8_t* buf
= (uint8_t*)urb
->transfer_buffer
+ urb
->transfer_buffer_length
;
500 buf
[3] = (p0
& 0xf0) | snd_usbmidi_cin_length
[p0
& 0x0f];
501 urb
->transfer_buffer_length
+= 4;
505 * Converts MIDI commands to USB MIDI packets.
507 static void snd_usbmidi_transmit_byte(struct usbmidi_out_port
* port
,
508 uint8_t b
, struct urb
* urb
)
510 uint8_t p0
= port
->cable
;
511 void (*output_packet
)(struct urb
*, uint8_t, uint8_t, uint8_t, uint8_t) =
512 port
->ep
->umidi
->usb_protocol_ops
->output_packet
;
515 output_packet(urb
, p0
| 0x0f, b
, 0, 0);
516 } else if (b
>= 0xf0) {
520 port
->state
= STATE_SYSEX_1
;
525 port
->state
= STATE_1PARAM
;
529 port
->state
= STATE_2PARAM_1
;
533 port
->state
= STATE_UNKNOWN
;
536 output_packet(urb
, p0
| 0x05, 0xf6, 0, 0);
537 port
->state
= STATE_UNKNOWN
;
540 switch (port
->state
) {
542 output_packet(urb
, p0
| 0x05, 0xf7, 0, 0);
545 output_packet(urb
, p0
| 0x06, port
->data
[0], 0xf7, 0);
548 output_packet(urb
, p0
| 0x07, port
->data
[0], port
->data
[1], 0xf7);
551 port
->state
= STATE_UNKNOWN
;
554 } else if (b
>= 0x80) {
556 if (b
>= 0xc0 && b
<= 0xdf)
557 port
->state
= STATE_1PARAM
;
559 port
->state
= STATE_2PARAM_1
;
560 } else { /* b < 0x80 */
561 switch (port
->state
) {
563 if (port
->data
[0] < 0xf0) {
564 p0
|= port
->data
[0] >> 4;
567 port
->state
= STATE_UNKNOWN
;
569 output_packet(urb
, p0
, port
->data
[0], b
, 0);
573 port
->state
= STATE_2PARAM_2
;
576 if (port
->data
[0] < 0xf0) {
577 p0
|= port
->data
[0] >> 4;
578 port
->state
= STATE_2PARAM_1
;
581 port
->state
= STATE_UNKNOWN
;
583 output_packet(urb
, p0
, port
->data
[0], port
->data
[1], b
);
587 port
->state
= STATE_SYSEX_1
;
591 port
->state
= STATE_SYSEX_2
;
594 output_packet(urb
, p0
| 0x04, port
->data
[0], port
->data
[1], b
);
595 port
->state
= STATE_SYSEX_0
;
601 static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint
* ep
,
606 /* FIXME: lower-numbered ports can starve higher-numbered ports */
607 for (p
= 0; p
< 0x10; ++p
) {
608 struct usbmidi_out_port
* port
= &ep
->ports
[p
];
611 while (urb
->transfer_buffer_length
+ 3 < ep
->max_transfer
) {
613 if (snd_rawmidi_transmit(port
->substream
, &b
, 1) != 1) {
617 snd_usbmidi_transmit_byte(port
, b
, urb
);
622 static struct usb_protocol_ops snd_usbmidi_standard_ops
= {
623 .input
= snd_usbmidi_standard_input
,
624 .output
= snd_usbmidi_standard_output
,
625 .output_packet
= snd_usbmidi_output_standard_packet
,
628 static struct usb_protocol_ops snd_usbmidi_midiman_ops
= {
629 .input
= snd_usbmidi_midiman_input
,
630 .output
= snd_usbmidi_standard_output
,
631 .output_packet
= snd_usbmidi_output_midiman_packet
,
634 static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops
= {
635 .input
= snd_usbmidi_maudio_broken_running_status_input
,
636 .output
= snd_usbmidi_standard_output
,
637 .output_packet
= snd_usbmidi_output_standard_packet
,
640 static struct usb_protocol_ops snd_usbmidi_cme_ops
= {
641 .input
= snd_usbmidi_cme_input
,
642 .output
= snd_usbmidi_standard_output
,
643 .output_packet
= snd_usbmidi_output_standard_packet
,
647 * Novation USB MIDI protocol: number of data bytes is in the first byte
648 * (when receiving) (+1!) or in the second byte (when sending); data begins
652 static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint
* ep
,
653 uint8_t* buffer
, int buffer_length
)
655 if (buffer_length
< 2 || !buffer
[0] || buffer_length
< buffer
[0] + 1)
657 snd_usbmidi_input_data(ep
, 0, &buffer
[2], buffer
[0] - 1);
660 static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint
* ep
,
663 uint8_t* transfer_buffer
;
666 if (!ep
->ports
[0].active
)
668 transfer_buffer
= urb
->transfer_buffer
;
669 count
= snd_rawmidi_transmit(ep
->ports
[0].substream
,
671 ep
->max_transfer
- 2);
673 ep
->ports
[0].active
= 0;
676 transfer_buffer
[0] = 0;
677 transfer_buffer
[1] = count
;
678 urb
->transfer_buffer_length
= 2 + count
;
681 static struct usb_protocol_ops snd_usbmidi_novation_ops
= {
682 .input
= snd_usbmidi_novation_input
,
683 .output
= snd_usbmidi_novation_output
,
687 * "raw" protocol: used by the MOTU FastLane.
690 static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint
* ep
,
691 uint8_t* buffer
, int buffer_length
)
693 snd_usbmidi_input_data(ep
, 0, buffer
, buffer_length
);
696 static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint
* ep
,
701 if (!ep
->ports
[0].active
)
703 count
= snd_rawmidi_transmit(ep
->ports
[0].substream
,
704 urb
->transfer_buffer
,
707 ep
->ports
[0].active
= 0;
710 urb
->transfer_buffer_length
= count
;
713 static struct usb_protocol_ops snd_usbmidi_raw_ops
= {
714 .input
= snd_usbmidi_raw_input
,
715 .output
= snd_usbmidi_raw_output
,
718 static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint
*ep
,
719 uint8_t *buffer
, int buffer_length
)
721 if (buffer_length
!= 9)
724 while (buffer_length
&& buffer
[buffer_length
- 1] == 0xFD)
727 snd_usbmidi_input_data(ep
, 0, buffer
, buffer_length
);
730 static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint
*ep
,
735 if (!ep
->ports
[0].active
)
737 count
= snd_usb_get_speed(ep
->umidi
->dev
) == USB_SPEED_HIGH
? 1 : 2;
738 count
= snd_rawmidi_transmit(ep
->ports
[0].substream
,
739 urb
->transfer_buffer
,
742 ep
->ports
[0].active
= 0;
746 memset(urb
->transfer_buffer
+ count
, 0xFD, 9 - count
);
747 urb
->transfer_buffer_length
= count
;
750 static struct usb_protocol_ops snd_usbmidi_122l_ops
= {
751 .input
= snd_usbmidi_us122l_input
,
752 .output
= snd_usbmidi_us122l_output
,
756 * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching.
759 static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint
* ep
)
761 static const u8 init_data
[] = {
762 /* initialization magic: "get version" */
764 0x00, 0x20, 0x31, /* Emagic */
766 0x0b, /* version number request */
767 0x00, /* command version */
768 0x00, /* EEPROM, box 0 */
771 send_bulk_static_data(ep
, init_data
, sizeof(init_data
));
772 /* while we're at it, pour on more magic */
773 send_bulk_static_data(ep
, init_data
, sizeof(init_data
));
776 static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint
* ep
)
778 static const u8 finish_data
[] = {
779 /* switch to patch mode with last preset */
781 0x00, 0x20, 0x31, /* Emagic */
783 0x10, /* patch switch command */
784 0x00, /* command version */
785 0x7f, /* to all boxes */
786 0x40, /* last preset in EEPROM */
789 send_bulk_static_data(ep
, finish_data
, sizeof(finish_data
));
792 static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint
* ep
,
793 uint8_t* buffer
, int buffer_length
)
797 /* FF indicates end of valid data */
798 for (i
= 0; i
< buffer_length
; ++i
)
799 if (buffer
[i
] == 0xff) {
804 /* handle F5 at end of last buffer */
808 while (buffer_length
> 0) {
809 /* determine size of data until next F5 */
810 for (i
= 0; i
< buffer_length
; ++i
)
811 if (buffer
[i
] == 0xf5)
813 snd_usbmidi_input_data(ep
, ep
->current_port
, buffer
, i
);
817 if (buffer_length
<= 0)
819 /* assert(buffer[0] == 0xf5); */
825 if (buffer_length
<= 0)
827 if (buffer
[0] < 0x80) {
828 ep
->current_port
= (buffer
[0] - 1) & 15;
836 static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint
* ep
,
839 int port0
= ep
->current_port
;
840 uint8_t* buf
= urb
->transfer_buffer
;
841 int buf_free
= ep
->max_transfer
;
844 for (i
= 0; i
< 0x10; ++i
) {
845 /* round-robin, starting at the last current port */
846 int portnum
= (port0
+ i
) & 15;
847 struct usbmidi_out_port
* port
= &ep
->ports
[portnum
];
851 if (snd_rawmidi_transmit_peek(port
->substream
, buf
, 1) != 1) {
856 if (portnum
!= ep
->current_port
) {
859 ep
->current_port
= portnum
;
861 buf
[1] = (portnum
+ 1) & 15;
868 length
= snd_rawmidi_transmit(port
->substream
, buf
, buf_free
);
876 if (buf_free
< ep
->max_transfer
&& buf_free
> 0) {
880 urb
->transfer_buffer_length
= ep
->max_transfer
- buf_free
;
883 static struct usb_protocol_ops snd_usbmidi_emagic_ops
= {
884 .input
= snd_usbmidi_emagic_input
,
885 .output
= snd_usbmidi_emagic_output
,
886 .init_out_endpoint
= snd_usbmidi_emagic_init_out
,
887 .finish_out_endpoint
= snd_usbmidi_emagic_finish_out
,
891 static void update_roland_altsetting(struct snd_usb_midi
* umidi
)
893 struct usb_interface
*intf
;
894 struct usb_host_interface
*hostif
;
895 struct usb_interface_descriptor
*intfd
;
899 is_light_load
= intf
->cur_altsetting
!= intf
->altsetting
;
900 if (umidi
->roland_load_ctl
->private_value
== is_light_load
)
902 hostif
= &intf
->altsetting
[umidi
->roland_load_ctl
->private_value
];
903 intfd
= get_iface_desc(hostif
);
904 snd_usbmidi_input_stop(&umidi
->list
);
905 usb_set_interface(umidi
->dev
, intfd
->bInterfaceNumber
,
906 intfd
->bAlternateSetting
);
907 snd_usbmidi_input_start(&umidi
->list
);
910 static void substream_open(struct snd_rawmidi_substream
*substream
, int open
)
912 struct snd_usb_midi
* umidi
= substream
->rmidi
->private_data
;
913 struct snd_kcontrol
*ctl
;
915 mutex_lock(&umidi
->mutex
);
917 if (umidi
->opened
++ == 0 && umidi
->roland_load_ctl
) {
918 ctl
= umidi
->roland_load_ctl
;
919 ctl
->vd
[0].access
|= SNDRV_CTL_ELEM_ACCESS_INACTIVE
;
920 snd_ctl_notify(umidi
->card
,
921 SNDRV_CTL_EVENT_MASK_INFO
, &ctl
->id
);
922 update_roland_altsetting(umidi
);
925 if (--umidi
->opened
== 0 && umidi
->roland_load_ctl
) {
926 ctl
= umidi
->roland_load_ctl
;
927 ctl
->vd
[0].access
&= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE
;
928 snd_ctl_notify(umidi
->card
,
929 SNDRV_CTL_EVENT_MASK_INFO
, &ctl
->id
);
932 mutex_unlock(&umidi
->mutex
);
935 static int snd_usbmidi_output_open(struct snd_rawmidi_substream
*substream
)
937 struct snd_usb_midi
* umidi
= substream
->rmidi
->private_data
;
938 struct usbmidi_out_port
* port
= NULL
;
941 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
)
942 if (umidi
->endpoints
[i
].out
)
943 for (j
= 0; j
< 0x10; ++j
)
944 if (umidi
->endpoints
[i
].out
->ports
[j
].substream
== substream
) {
945 port
= &umidi
->endpoints
[i
].out
->ports
[j
];
952 substream
->runtime
->private_data
= port
;
953 port
->state
= STATE_UNKNOWN
;
954 substream_open(substream
, 1);
958 static int snd_usbmidi_output_close(struct snd_rawmidi_substream
*substream
)
960 substream_open(substream
, 0);
964 static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream
*substream
, int up
)
966 struct usbmidi_out_port
* port
= (struct usbmidi_out_port
*)substream
->runtime
->private_data
;
970 if (port
->ep
->umidi
->disconnected
) {
971 /* gobble up remaining bytes to prevent wait in
972 * snd_rawmidi_drain_output */
973 while (!snd_rawmidi_transmit_empty(substream
))
974 snd_rawmidi_transmit_ack(substream
, 1);
977 tasklet_schedule(&port
->ep
->tasklet
);
981 static void snd_usbmidi_output_drain(struct snd_rawmidi_substream
*substream
)
983 struct usbmidi_out_port
* port
= substream
->runtime
->private_data
;
984 struct snd_usb_midi_out_endpoint
*ep
= port
->ep
;
985 unsigned int drain_urbs
;
987 long timeout
= msecs_to_jiffies(50);
990 * The substream buffer is empty, but some data might still be in the
991 * currently active URBs, so we have to wait for those to complete.
993 spin_lock_irq(&ep
->buffer_lock
);
994 drain_urbs
= ep
->active_urbs
;
996 ep
->drain_urbs
|= drain_urbs
;
998 prepare_to_wait(&ep
->drain_wait
, &wait
,
999 TASK_UNINTERRUPTIBLE
);
1000 spin_unlock_irq(&ep
->buffer_lock
);
1001 timeout
= schedule_timeout(timeout
);
1002 spin_lock_irq(&ep
->buffer_lock
);
1003 drain_urbs
&= ep
->drain_urbs
;
1004 } while (drain_urbs
&& timeout
);
1005 finish_wait(&ep
->drain_wait
, &wait
);
1007 spin_unlock_irq(&ep
->buffer_lock
);
1010 static int snd_usbmidi_input_open(struct snd_rawmidi_substream
*substream
)
1012 substream_open(substream
, 1);
1016 static int snd_usbmidi_input_close(struct snd_rawmidi_substream
*substream
)
1018 substream_open(substream
, 0);
1022 static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream
*substream
, int up
)
1024 struct snd_usb_midi
* umidi
= substream
->rmidi
->private_data
;
1027 set_bit(substream
->number
, &umidi
->input_triggered
);
1029 clear_bit(substream
->number
, &umidi
->input_triggered
);
1032 static struct snd_rawmidi_ops snd_usbmidi_output_ops
= {
1033 .open
= snd_usbmidi_output_open
,
1034 .close
= snd_usbmidi_output_close
,
1035 .trigger
= snd_usbmidi_output_trigger
,
1036 .drain
= snd_usbmidi_output_drain
,
1039 static struct snd_rawmidi_ops snd_usbmidi_input_ops
= {
1040 .open
= snd_usbmidi_input_open
,
1041 .close
= snd_usbmidi_input_close
,
1042 .trigger
= snd_usbmidi_input_trigger
1045 static void free_urb_and_buffer(struct snd_usb_midi
*umidi
, struct urb
*urb
,
1046 unsigned int buffer_length
)
1048 usb_buffer_free(umidi
->dev
, buffer_length
,
1049 urb
->transfer_buffer
, urb
->transfer_dma
);
1054 * Frees an input endpoint.
1055 * May be called when ep hasn't been initialized completely.
1057 static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint
* ep
)
1061 for (i
= 0; i
< INPUT_URBS
; ++i
)
1063 free_urb_and_buffer(ep
->umidi
, ep
->urbs
[i
],
1064 ep
->urbs
[i
]->transfer_buffer_length
);
1069 * Creates an input endpoint.
1071 static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi
* umidi
,
1072 struct snd_usb_midi_endpoint_info
* ep_info
,
1073 struct snd_usb_midi_endpoint
* rep
)
1075 struct snd_usb_midi_in_endpoint
* ep
;
1082 ep
= kzalloc(sizeof(*ep
), GFP_KERNEL
);
1087 for (i
= 0; i
< INPUT_URBS
; ++i
) {
1088 ep
->urbs
[i
] = usb_alloc_urb(0, GFP_KERNEL
);
1090 snd_usbmidi_in_endpoint_delete(ep
);
1094 if (ep_info
->in_interval
)
1095 pipe
= usb_rcvintpipe(umidi
->dev
, ep_info
->in_ep
);
1097 pipe
= usb_rcvbulkpipe(umidi
->dev
, ep_info
->in_ep
);
1098 length
= usb_maxpacket(umidi
->dev
, pipe
, 0);
1099 for (i
= 0; i
< INPUT_URBS
; ++i
) {
1100 buffer
= usb_buffer_alloc(umidi
->dev
, length
, GFP_KERNEL
,
1101 &ep
->urbs
[i
]->transfer_dma
);
1103 snd_usbmidi_in_endpoint_delete(ep
);
1106 if (ep_info
->in_interval
)
1107 usb_fill_int_urb(ep
->urbs
[i
], umidi
->dev
,
1108 pipe
, buffer
, length
,
1109 snd_usbmidi_in_urb_complete
,
1110 ep
, ep_info
->in_interval
);
1112 usb_fill_bulk_urb(ep
->urbs
[i
], umidi
->dev
,
1113 pipe
, buffer
, length
,
1114 snd_usbmidi_in_urb_complete
, ep
);
1115 ep
->urbs
[i
]->transfer_flags
= URB_NO_TRANSFER_DMA_MAP
;
1123 * Frees an output endpoint.
1124 * May be called when ep hasn't been initialized completely.
1126 static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint
* ep
)
1130 for (i
= 0; i
< OUTPUT_URBS
; ++i
)
1131 if (ep
->urbs
[i
].urb
)
1132 free_urb_and_buffer(ep
->umidi
, ep
->urbs
[i
].urb
,
1138 * Creates an output endpoint, and initializes output ports.
1140 static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi
* umidi
,
1141 struct snd_usb_midi_endpoint_info
* ep_info
,
1142 struct snd_usb_midi_endpoint
* rep
)
1144 struct snd_usb_midi_out_endpoint
* ep
;
1150 ep
= kzalloc(sizeof(*ep
), GFP_KERNEL
);
1155 for (i
= 0; i
< OUTPUT_URBS
; ++i
) {
1156 ep
->urbs
[i
].urb
= usb_alloc_urb(0, GFP_KERNEL
);
1157 if (!ep
->urbs
[i
].urb
) {
1158 snd_usbmidi_out_endpoint_delete(ep
);
1161 ep
->urbs
[i
].ep
= ep
;
1163 if (ep_info
->out_interval
)
1164 pipe
= usb_sndintpipe(umidi
->dev
, ep_info
->out_ep
);
1166 pipe
= usb_sndbulkpipe(umidi
->dev
, ep_info
->out_ep
);
1167 switch (umidi
->usb_id
) {
1169 ep
->max_transfer
= usb_maxpacket(umidi
->dev
, pipe
, 1);
1172 * Various chips declare a packet size larger than 4 bytes, but
1173 * do not actually work with larger packets:
1175 case USB_ID(0x0a92, 0x1020): /* ESI M4U */
1176 case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */
1177 case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */
1178 case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */
1179 case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */
1180 ep
->max_transfer
= 4;
1183 for (i
= 0; i
< OUTPUT_URBS
; ++i
) {
1184 buffer
= usb_buffer_alloc(umidi
->dev
,
1185 ep
->max_transfer
, GFP_KERNEL
,
1186 &ep
->urbs
[i
].urb
->transfer_dma
);
1188 snd_usbmidi_out_endpoint_delete(ep
);
1191 if (ep_info
->out_interval
)
1192 usb_fill_int_urb(ep
->urbs
[i
].urb
, umidi
->dev
,
1193 pipe
, buffer
, ep
->max_transfer
,
1194 snd_usbmidi_out_urb_complete
,
1195 &ep
->urbs
[i
], ep_info
->out_interval
);
1197 usb_fill_bulk_urb(ep
->urbs
[i
].urb
, umidi
->dev
,
1198 pipe
, buffer
, ep
->max_transfer
,
1199 snd_usbmidi_out_urb_complete
,
1201 ep
->urbs
[i
].urb
->transfer_flags
= URB_NO_TRANSFER_DMA_MAP
;
1204 spin_lock_init(&ep
->buffer_lock
);
1205 tasklet_init(&ep
->tasklet
, snd_usbmidi_out_tasklet
, (unsigned long)ep
);
1206 init_waitqueue_head(&ep
->drain_wait
);
1208 for (i
= 0; i
< 0x10; ++i
)
1209 if (ep_info
->out_cables
& (1 << i
)) {
1210 ep
->ports
[i
].ep
= ep
;
1211 ep
->ports
[i
].cable
= i
<< 4;
1214 if (umidi
->usb_protocol_ops
->init_out_endpoint
)
1215 umidi
->usb_protocol_ops
->init_out_endpoint(ep
);
1224 static void snd_usbmidi_free(struct snd_usb_midi
* umidi
)
1228 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
1229 struct snd_usb_midi_endpoint
* ep
= &umidi
->endpoints
[i
];
1231 snd_usbmidi_out_endpoint_delete(ep
->out
);
1233 snd_usbmidi_in_endpoint_delete(ep
->in
);
1235 mutex_destroy(&umidi
->mutex
);
1240 * Unlinks all URBs (must be done before the usb_device is deleted).
1242 void snd_usbmidi_disconnect(struct list_head
* p
)
1244 struct snd_usb_midi
* umidi
;
1247 umidi
= list_entry(p
, struct snd_usb_midi
, list
);
1249 * an URB's completion handler may start the timer and
1250 * a timer may submit an URB. To reliably break the cycle
1251 * a flag under lock must be used
1253 spin_lock_irq(&umidi
->disc_lock
);
1254 umidi
->disconnected
= 1;
1255 spin_unlock_irq(&umidi
->disc_lock
);
1256 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
1257 struct snd_usb_midi_endpoint
* ep
= &umidi
->endpoints
[i
];
1259 tasklet_kill(&ep
->out
->tasklet
);
1261 for (j
= 0; j
< OUTPUT_URBS
; ++j
)
1262 usb_kill_urb(ep
->out
->urbs
[j
].urb
);
1263 if (umidi
->usb_protocol_ops
->finish_out_endpoint
)
1264 umidi
->usb_protocol_ops
->finish_out_endpoint(ep
->out
);
1267 for (j
= 0; j
< INPUT_URBS
; ++j
)
1268 usb_kill_urb(ep
->in
->urbs
[j
]);
1269 /* free endpoints here; later call can result in Oops */
1271 snd_usbmidi_out_endpoint_delete(ep
->out
);
1275 snd_usbmidi_in_endpoint_delete(ep
->in
);
1279 del_timer_sync(&umidi
->error_timer
);
1282 static void snd_usbmidi_rawmidi_free(struct snd_rawmidi
*rmidi
)
1284 struct snd_usb_midi
* umidi
= rmidi
->private_data
;
1285 snd_usbmidi_free(umidi
);
1288 static struct snd_rawmidi_substream
*snd_usbmidi_find_substream(struct snd_usb_midi
* umidi
,
1289 int stream
, int number
)
1291 struct list_head
* list
;
1293 list_for_each(list
, &umidi
->rmidi
->streams
[stream
].substreams
) {
1294 struct snd_rawmidi_substream
*substream
= list_entry(list
, struct snd_rawmidi_substream
, list
);
1295 if (substream
->number
== number
)
1302 * This list specifies names for ports that do not fit into the standard
1303 * "(product) MIDI (n)" schema because they aren't external MIDI ports,
1304 * such as internal control or synthesizer ports.
1306 static struct port_info
{
1311 unsigned int seq_flags
;
1312 } snd_usbmidi_port_info
[] = {
1313 #define PORT_INFO(vendor, product, num, name_, voices_, flags) \
1314 { .id = USB_ID(vendor, product), \
1315 .port = num, .voices = voices_, \
1316 .name = name_, .seq_flags = flags }
1317 #define EXTERNAL_PORT(vendor, product, num, name) \
1318 PORT_INFO(vendor, product, num, name, 0, \
1319 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
1320 SNDRV_SEQ_PORT_TYPE_HARDWARE | \
1321 SNDRV_SEQ_PORT_TYPE_PORT)
1322 #define CONTROL_PORT(vendor, product, num, name) \
1323 PORT_INFO(vendor, product, num, name, 0, \
1324 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
1325 SNDRV_SEQ_PORT_TYPE_HARDWARE)
1326 #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \
1327 PORT_INFO(vendor, product, num, name, voices, \
1328 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
1329 SNDRV_SEQ_PORT_TYPE_MIDI_GM | \
1330 SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \
1331 SNDRV_SEQ_PORT_TYPE_MIDI_GS | \
1332 SNDRV_SEQ_PORT_TYPE_MIDI_XG | \
1333 SNDRV_SEQ_PORT_TYPE_HARDWARE | \
1334 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
1335 #define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \
1336 PORT_INFO(vendor, product, num, name, voices, \
1337 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
1338 SNDRV_SEQ_PORT_TYPE_MIDI_GM | \
1339 SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \
1340 SNDRV_SEQ_PORT_TYPE_MIDI_GS | \
1341 SNDRV_SEQ_PORT_TYPE_MIDI_XG | \
1342 SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \
1343 SNDRV_SEQ_PORT_TYPE_HARDWARE | \
1344 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
1346 CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"),
1347 /* Roland SC-8850 */
1348 SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128),
1349 SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128),
1350 SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128),
1351 SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128),
1352 EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"),
1353 EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"),
1355 EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"),
1356 CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"),
1357 /* Roland SC-8820 */
1358 SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64),
1359 SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64),
1360 EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"),
1362 SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64),
1363 SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64),
1364 EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"),
1366 SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64),
1367 SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64),
1368 EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"),
1370 CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"),
1372 ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128),
1373 ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128),
1374 EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"),
1375 EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"),
1377 CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"),
1379 ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64),
1380 ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64),
1381 EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"),
1383 ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128),
1384 ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128),
1385 EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"),
1386 EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"),
1388 EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"),
1389 CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"),
1391 EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"),
1392 EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"),
1393 EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"),
1395 EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"),
1396 EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"),
1397 EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"),
1399 EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"),
1400 CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"),
1401 /* Edirol UA-1000 */
1402 EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"),
1403 CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"),
1405 EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"),
1406 EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"),
1407 EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"),
1409 EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"),
1410 EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"),
1411 EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"),
1413 CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"),
1414 /* M-Audio MidiSport 8x8 */
1415 CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"),
1416 CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"),
1418 EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"),
1419 EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"),
1420 /* Emagic Unitor8/AMT8/MT4 */
1421 EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"),
1422 EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"),
1423 EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"),
1424 /* Access Music Virus TI */
1425 EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"),
1426 PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0,
1427 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC
|
1428 SNDRV_SEQ_PORT_TYPE_HARDWARE
|
1429 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER
),
1432 static struct port_info
*find_port_info(struct snd_usb_midi
* umidi
, int number
)
1436 for (i
= 0; i
< ARRAY_SIZE(snd_usbmidi_port_info
); ++i
) {
1437 if (snd_usbmidi_port_info
[i
].id
== umidi
->usb_id
&&
1438 snd_usbmidi_port_info
[i
].port
== number
)
1439 return &snd_usbmidi_port_info
[i
];
1444 static void snd_usbmidi_get_port_info(struct snd_rawmidi
*rmidi
, int number
,
1445 struct snd_seq_port_info
*seq_port_info
)
1447 struct snd_usb_midi
*umidi
= rmidi
->private_data
;
1448 struct port_info
*port_info
;
1450 /* TODO: read port flags from descriptors */
1451 port_info
= find_port_info(umidi
, number
);
1453 seq_port_info
->type
= port_info
->seq_flags
;
1454 seq_port_info
->midi_voices
= port_info
->voices
;
1458 static void snd_usbmidi_init_substream(struct snd_usb_midi
* umidi
,
1459 int stream
, int number
,
1460 struct snd_rawmidi_substream
** rsubstream
)
1462 struct port_info
*port_info
;
1463 const char *name_format
;
1465 struct snd_rawmidi_substream
*substream
= snd_usbmidi_find_substream(umidi
, stream
, number
);
1467 snd_printd(KERN_ERR
"substream %d:%d not found\n", stream
, number
);
1471 /* TODO: read port name from jack descriptor */
1472 port_info
= find_port_info(umidi
, number
);
1473 name_format
= port_info
? port_info
->name
: "%s MIDI %d";
1474 snprintf(substream
->name
, sizeof(substream
->name
),
1475 name_format
, umidi
->card
->shortname
, number
+ 1);
1477 *rsubstream
= substream
;
1481 * Creates the endpoints and their ports.
1483 static int snd_usbmidi_create_endpoints(struct snd_usb_midi
* umidi
,
1484 struct snd_usb_midi_endpoint_info
* endpoints
)
1487 int out_ports
= 0, in_ports
= 0;
1489 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
1490 if (endpoints
[i
].out_cables
) {
1491 err
= snd_usbmidi_out_endpoint_create(umidi
, &endpoints
[i
],
1492 &umidi
->endpoints
[i
]);
1496 if (endpoints
[i
].in_cables
) {
1497 err
= snd_usbmidi_in_endpoint_create(umidi
, &endpoints
[i
],
1498 &umidi
->endpoints
[i
]);
1503 for (j
= 0; j
< 0x10; ++j
) {
1504 if (endpoints
[i
].out_cables
& (1 << j
)) {
1505 snd_usbmidi_init_substream(umidi
, SNDRV_RAWMIDI_STREAM_OUTPUT
, out_ports
,
1506 &umidi
->endpoints
[i
].out
->ports
[j
].substream
);
1509 if (endpoints
[i
].in_cables
& (1 << j
)) {
1510 snd_usbmidi_init_substream(umidi
, SNDRV_RAWMIDI_STREAM_INPUT
, in_ports
,
1511 &umidi
->endpoints
[i
].in
->ports
[j
].substream
);
1516 snd_printdd(KERN_INFO
"created %d output and %d input ports\n",
1517 out_ports
, in_ports
);
1522 * Returns MIDIStreaming device capabilities.
1524 static int snd_usbmidi_get_ms_info(struct snd_usb_midi
* umidi
,
1525 struct snd_usb_midi_endpoint_info
* endpoints
)
1527 struct usb_interface
* intf
;
1528 struct usb_host_interface
*hostif
;
1529 struct usb_interface_descriptor
* intfd
;
1530 struct usb_ms_header_descriptor
* ms_header
;
1531 struct usb_host_endpoint
*hostep
;
1532 struct usb_endpoint_descriptor
* ep
;
1533 struct usb_ms_endpoint_descriptor
* ms_ep
;
1536 intf
= umidi
->iface
;
1539 hostif
= &intf
->altsetting
[0];
1540 intfd
= get_iface_desc(hostif
);
1541 ms_header
= (struct usb_ms_header_descriptor
*)hostif
->extra
;
1542 if (hostif
->extralen
>= 7 &&
1543 ms_header
->bLength
>= 7 &&
1544 ms_header
->bDescriptorType
== USB_DT_CS_INTERFACE
&&
1545 ms_header
->bDescriptorSubtype
== UAC_HEADER
)
1546 snd_printdd(KERN_INFO
"MIDIStreaming version %02x.%02x\n",
1547 ms_header
->bcdMSC
[1], ms_header
->bcdMSC
[0]);
1549 snd_printk(KERN_WARNING
"MIDIStreaming interface descriptor not found\n");
1552 for (i
= 0; i
< intfd
->bNumEndpoints
; ++i
) {
1553 hostep
= &hostif
->endpoint
[i
];
1554 ep
= get_ep_desc(hostep
);
1555 if (!usb_endpoint_xfer_bulk(ep
) && !usb_endpoint_xfer_int(ep
))
1557 ms_ep
= (struct usb_ms_endpoint_descriptor
*)hostep
->extra
;
1558 if (hostep
->extralen
< 4 ||
1559 ms_ep
->bLength
< 4 ||
1560 ms_ep
->bDescriptorType
!= USB_DT_CS_ENDPOINT
||
1561 ms_ep
->bDescriptorSubtype
!= UAC_MS_GENERAL
)
1563 if (usb_endpoint_dir_out(ep
)) {
1564 if (endpoints
[epidx
].out_ep
) {
1565 if (++epidx
>= MIDI_MAX_ENDPOINTS
) {
1566 snd_printk(KERN_WARNING
"too many endpoints\n");
1570 endpoints
[epidx
].out_ep
= usb_endpoint_num(ep
);
1571 if (usb_endpoint_xfer_int(ep
))
1572 endpoints
[epidx
].out_interval
= ep
->bInterval
;
1573 else if (snd_usb_get_speed(umidi
->dev
) == USB_SPEED_LOW
)
1575 * Low speed bulk transfers don't exist, so
1576 * force interrupt transfers for devices like
1577 * ESI MIDI Mate that try to use them anyway.
1579 endpoints
[epidx
].out_interval
= 1;
1580 endpoints
[epidx
].out_cables
= (1 << ms_ep
->bNumEmbMIDIJack
) - 1;
1581 snd_printdd(KERN_INFO
"EP %02X: %d jack(s)\n",
1582 ep
->bEndpointAddress
, ms_ep
->bNumEmbMIDIJack
);
1584 if (endpoints
[epidx
].in_ep
) {
1585 if (++epidx
>= MIDI_MAX_ENDPOINTS
) {
1586 snd_printk(KERN_WARNING
"too many endpoints\n");
1590 endpoints
[epidx
].in_ep
= usb_endpoint_num(ep
);
1591 if (usb_endpoint_xfer_int(ep
))
1592 endpoints
[epidx
].in_interval
= ep
->bInterval
;
1593 else if (snd_usb_get_speed(umidi
->dev
) == USB_SPEED_LOW
)
1594 endpoints
[epidx
].in_interval
= 1;
1595 endpoints
[epidx
].in_cables
= (1 << ms_ep
->bNumEmbMIDIJack
) - 1;
1596 snd_printdd(KERN_INFO
"EP %02X: %d jack(s)\n",
1597 ep
->bEndpointAddress
, ms_ep
->bNumEmbMIDIJack
);
1603 static int roland_load_info(struct snd_kcontrol
*kcontrol
,
1604 struct snd_ctl_elem_info
*info
)
1606 static const char *const names
[] = { "High Load", "Light Load" };
1608 info
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
1610 info
->value
.enumerated
.items
= 2;
1611 if (info
->value
.enumerated
.item
> 1)
1612 info
->value
.enumerated
.item
= 1;
1613 strcpy(info
->value
.enumerated
.name
, names
[info
->value
.enumerated
.item
]);
1617 static int roland_load_get(struct snd_kcontrol
*kcontrol
,
1618 struct snd_ctl_elem_value
*value
)
1620 value
->value
.enumerated
.item
[0] = kcontrol
->private_value
;
1624 static int roland_load_put(struct snd_kcontrol
*kcontrol
,
1625 struct snd_ctl_elem_value
*value
)
1627 struct snd_usb_midi
* umidi
= kcontrol
->private_data
;
1630 if (value
->value
.enumerated
.item
[0] > 1)
1632 mutex_lock(&umidi
->mutex
);
1633 changed
= value
->value
.enumerated
.item
[0] != kcontrol
->private_value
;
1635 kcontrol
->private_value
= value
->value
.enumerated
.item
[0];
1636 mutex_unlock(&umidi
->mutex
);
1640 static struct snd_kcontrol_new roland_load_ctl
= {
1641 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1642 .name
= "MIDI Input Mode",
1643 .info
= roland_load_info
,
1644 .get
= roland_load_get
,
1645 .put
= roland_load_put
,
1650 * On Roland devices, use the second alternate setting to be able to use
1651 * the interrupt input endpoint.
1653 static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi
* umidi
)
1655 struct usb_interface
* intf
;
1656 struct usb_host_interface
*hostif
;
1657 struct usb_interface_descriptor
* intfd
;
1659 intf
= umidi
->iface
;
1660 if (!intf
|| intf
->num_altsetting
!= 2)
1663 hostif
= &intf
->altsetting
[1];
1664 intfd
= get_iface_desc(hostif
);
1665 if (intfd
->bNumEndpoints
!= 2 ||
1666 (get_endpoint(hostif
, 0)->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
) != USB_ENDPOINT_XFER_BULK
||
1667 (get_endpoint(hostif
, 1)->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
) != USB_ENDPOINT_XFER_INT
)
1670 snd_printdd(KERN_INFO
"switching to altsetting %d with int ep\n",
1671 intfd
->bAlternateSetting
);
1672 usb_set_interface(umidi
->dev
, intfd
->bInterfaceNumber
,
1673 intfd
->bAlternateSetting
);
1675 umidi
->roland_load_ctl
= snd_ctl_new1(&roland_load_ctl
, umidi
);
1676 if (snd_ctl_add(umidi
->card
, umidi
->roland_load_ctl
) < 0)
1677 umidi
->roland_load_ctl
= NULL
;
1681 * Try to find any usable endpoints in the interface.
1683 static int snd_usbmidi_detect_endpoints(struct snd_usb_midi
* umidi
,
1684 struct snd_usb_midi_endpoint_info
* endpoint
,
1687 struct usb_interface
* intf
;
1688 struct usb_host_interface
*hostif
;
1689 struct usb_interface_descriptor
* intfd
;
1690 struct usb_endpoint_descriptor
* epd
;
1691 int i
, out_eps
= 0, in_eps
= 0;
1693 if (USB_ID_VENDOR(umidi
->usb_id
) == 0x0582)
1694 snd_usbmidi_switch_roland_altsetting(umidi
);
1696 if (endpoint
[0].out_ep
|| endpoint
[0].in_ep
)
1699 intf
= umidi
->iface
;
1700 if (!intf
|| intf
->num_altsetting
< 1)
1702 hostif
= intf
->cur_altsetting
;
1703 intfd
= get_iface_desc(hostif
);
1705 for (i
= 0; i
< intfd
->bNumEndpoints
; ++i
) {
1706 epd
= get_endpoint(hostif
, i
);
1707 if (!usb_endpoint_xfer_bulk(epd
) &&
1708 !usb_endpoint_xfer_int(epd
))
1710 if (out_eps
< max_endpoints
&&
1711 usb_endpoint_dir_out(epd
)) {
1712 endpoint
[out_eps
].out_ep
= usb_endpoint_num(epd
);
1713 if (usb_endpoint_xfer_int(epd
))
1714 endpoint
[out_eps
].out_interval
= epd
->bInterval
;
1717 if (in_eps
< max_endpoints
&&
1718 usb_endpoint_dir_in(epd
)) {
1719 endpoint
[in_eps
].in_ep
= usb_endpoint_num(epd
);
1720 if (usb_endpoint_xfer_int(epd
))
1721 endpoint
[in_eps
].in_interval
= epd
->bInterval
;
1725 return (out_eps
|| in_eps
) ? 0 : -ENOENT
;
1729 * Detects the endpoints for one-port-per-endpoint protocols.
1731 static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi
* umidi
,
1732 struct snd_usb_midi_endpoint_info
* endpoints
)
1736 err
= snd_usbmidi_detect_endpoints(umidi
, endpoints
, MIDI_MAX_ENDPOINTS
);
1737 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
1738 if (endpoints
[i
].out_ep
)
1739 endpoints
[i
].out_cables
= 0x0001;
1740 if (endpoints
[i
].in_ep
)
1741 endpoints
[i
].in_cables
= 0x0001;
1747 * Detects the endpoints and ports of Yamaha devices.
1749 static int snd_usbmidi_detect_yamaha(struct snd_usb_midi
* umidi
,
1750 struct snd_usb_midi_endpoint_info
* endpoint
)
1752 struct usb_interface
* intf
;
1753 struct usb_host_interface
*hostif
;
1754 struct usb_interface_descriptor
* intfd
;
1757 intf
= umidi
->iface
;
1760 hostif
= intf
->altsetting
;
1761 intfd
= get_iface_desc(hostif
);
1762 if (intfd
->bNumEndpoints
< 1)
1766 * For each port there is one MIDI_IN/OUT_JACK descriptor, not
1767 * necessarily with any useful contents. So simply count 'em.
1769 for (cs_desc
= hostif
->extra
;
1770 cs_desc
< hostif
->extra
+ hostif
->extralen
&& cs_desc
[0] >= 2;
1771 cs_desc
+= cs_desc
[0]) {
1772 if (cs_desc
[1] == USB_DT_CS_INTERFACE
) {
1773 if (cs_desc
[2] == UAC_MIDI_IN_JACK
)
1774 endpoint
->in_cables
= (endpoint
->in_cables
<< 1) | 1;
1775 else if (cs_desc
[2] == UAC_MIDI_OUT_JACK
)
1776 endpoint
->out_cables
= (endpoint
->out_cables
<< 1) | 1;
1779 if (!endpoint
->in_cables
&& !endpoint
->out_cables
)
1782 return snd_usbmidi_detect_endpoints(umidi
, endpoint
, 1);
1786 * Creates the endpoints and their ports for Midiman devices.
1788 static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi
* umidi
,
1789 struct snd_usb_midi_endpoint_info
* endpoint
)
1791 struct snd_usb_midi_endpoint_info ep_info
;
1792 struct usb_interface
* intf
;
1793 struct usb_host_interface
*hostif
;
1794 struct usb_interface_descriptor
* intfd
;
1795 struct usb_endpoint_descriptor
* epd
;
1798 intf
= umidi
->iface
;
1801 hostif
= intf
->altsetting
;
1802 intfd
= get_iface_desc(hostif
);
1804 * The various MidiSport devices have more or less random endpoint
1805 * numbers, so we have to identify the endpoints by their index in
1806 * the descriptor array, like the driver for that other OS does.
1808 * There is one interrupt input endpoint for all input ports, one
1809 * bulk output endpoint for even-numbered ports, and one for odd-
1810 * numbered ports. Both bulk output endpoints have corresponding
1811 * input bulk endpoints (at indices 1 and 3) which aren't used.
1813 if (intfd
->bNumEndpoints
< (endpoint
->out_cables
> 0x0001 ? 5 : 3)) {
1814 snd_printdd(KERN_ERR
"not enough endpoints\n");
1818 epd
= get_endpoint(hostif
, 0);
1819 if (!usb_endpoint_dir_in(epd
) || !usb_endpoint_xfer_int(epd
)) {
1820 snd_printdd(KERN_ERR
"endpoint[0] isn't interrupt\n");
1823 epd
= get_endpoint(hostif
, 2);
1824 if (!usb_endpoint_dir_out(epd
) || !usb_endpoint_xfer_bulk(epd
)) {
1825 snd_printdd(KERN_ERR
"endpoint[2] isn't bulk output\n");
1828 if (endpoint
->out_cables
> 0x0001) {
1829 epd
= get_endpoint(hostif
, 4);
1830 if (!usb_endpoint_dir_out(epd
) ||
1831 !usb_endpoint_xfer_bulk(epd
)) {
1832 snd_printdd(KERN_ERR
"endpoint[4] isn't bulk output\n");
1837 ep_info
.out_ep
= get_endpoint(hostif
, 2)->bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
;
1838 ep_info
.out_interval
= 0;
1839 ep_info
.out_cables
= endpoint
->out_cables
& 0x5555;
1840 err
= snd_usbmidi_out_endpoint_create(umidi
, &ep_info
, &umidi
->endpoints
[0]);
1844 ep_info
.in_ep
= get_endpoint(hostif
, 0)->bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
;
1845 ep_info
.in_interval
= get_endpoint(hostif
, 0)->bInterval
;
1846 ep_info
.in_cables
= endpoint
->in_cables
;
1847 err
= snd_usbmidi_in_endpoint_create(umidi
, &ep_info
, &umidi
->endpoints
[0]);
1851 if (endpoint
->out_cables
> 0x0001) {
1852 ep_info
.out_ep
= get_endpoint(hostif
, 4)->bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
;
1853 ep_info
.out_cables
= endpoint
->out_cables
& 0xaaaa;
1854 err
= snd_usbmidi_out_endpoint_create(umidi
, &ep_info
, &umidi
->endpoints
[1]);
1859 for (cable
= 0; cable
< 0x10; ++cable
) {
1860 if (endpoint
->out_cables
& (1 << cable
))
1861 snd_usbmidi_init_substream(umidi
, SNDRV_RAWMIDI_STREAM_OUTPUT
, cable
,
1862 &umidi
->endpoints
[cable
& 1].out
->ports
[cable
].substream
);
1863 if (endpoint
->in_cables
& (1 << cable
))
1864 snd_usbmidi_init_substream(umidi
, SNDRV_RAWMIDI_STREAM_INPUT
, cable
,
1865 &umidi
->endpoints
[0].in
->ports
[cable
].substream
);
1870 static struct snd_rawmidi_global_ops snd_usbmidi_ops
= {
1871 .get_port_info
= snd_usbmidi_get_port_info
,
1874 static int snd_usbmidi_create_rawmidi(struct snd_usb_midi
* umidi
,
1875 int out_ports
, int in_ports
)
1877 struct snd_rawmidi
*rmidi
;
1880 err
= snd_rawmidi_new(umidi
->card
, "USB MIDI",
1881 umidi
->next_midi_device
++,
1882 out_ports
, in_ports
, &rmidi
);
1885 strcpy(rmidi
->name
, umidi
->card
->shortname
);
1886 rmidi
->info_flags
= SNDRV_RAWMIDI_INFO_OUTPUT
|
1887 SNDRV_RAWMIDI_INFO_INPUT
|
1888 SNDRV_RAWMIDI_INFO_DUPLEX
;
1889 rmidi
->ops
= &snd_usbmidi_ops
;
1890 rmidi
->private_data
= umidi
;
1891 rmidi
->private_free
= snd_usbmidi_rawmidi_free
;
1892 snd_rawmidi_set_ops(rmidi
, SNDRV_RAWMIDI_STREAM_OUTPUT
, &snd_usbmidi_output_ops
);
1893 snd_rawmidi_set_ops(rmidi
, SNDRV_RAWMIDI_STREAM_INPUT
, &snd_usbmidi_input_ops
);
1895 umidi
->rmidi
= rmidi
;
1900 * Temporarily stop input.
1902 void snd_usbmidi_input_stop(struct list_head
* p
)
1904 struct snd_usb_midi
* umidi
;
1907 umidi
= list_entry(p
, struct snd_usb_midi
, list
);
1908 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
1909 struct snd_usb_midi_endpoint
* ep
= &umidi
->endpoints
[i
];
1911 for (j
= 0; j
< INPUT_URBS
; ++j
)
1912 usb_kill_urb(ep
->in
->urbs
[j
]);
1916 static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint
* ep
)
1922 for (i
= 0; i
< INPUT_URBS
; ++i
) {
1923 struct urb
* urb
= ep
->urbs
[i
];
1924 urb
->dev
= ep
->umidi
->dev
;
1925 snd_usbmidi_submit_urb(urb
, GFP_KERNEL
);
1930 * Resume input after a call to snd_usbmidi_input_stop().
1932 void snd_usbmidi_input_start(struct list_head
* p
)
1934 struct snd_usb_midi
* umidi
;
1937 umidi
= list_entry(p
, struct snd_usb_midi
, list
);
1938 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
)
1939 snd_usbmidi_input_start_ep(umidi
->endpoints
[i
].in
);
1943 * Creates and registers everything needed for a MIDI streaming interface.
1945 int snd_usbmidi_create(struct snd_card
*card
,
1946 struct usb_interface
* iface
,
1947 struct list_head
*midi_list
,
1948 const struct snd_usb_audio_quirk
* quirk
)
1950 struct snd_usb_midi
* umidi
;
1951 struct snd_usb_midi_endpoint_info endpoints
[MIDI_MAX_ENDPOINTS
];
1952 int out_ports
, in_ports
;
1955 umidi
= kzalloc(sizeof(*umidi
), GFP_KERNEL
);
1958 umidi
->dev
= interface_to_usbdev(iface
);
1960 umidi
->iface
= iface
;
1961 umidi
->quirk
= quirk
;
1962 umidi
->usb_protocol_ops
= &snd_usbmidi_standard_ops
;
1963 init_timer(&umidi
->error_timer
);
1964 spin_lock_init(&umidi
->disc_lock
);
1965 mutex_init(&umidi
->mutex
);
1966 umidi
->usb_id
= USB_ID(le16_to_cpu(umidi
->dev
->descriptor
.idVendor
),
1967 le16_to_cpu(umidi
->dev
->descriptor
.idProduct
));
1968 umidi
->error_timer
.function
= snd_usbmidi_error_timer
;
1969 umidi
->error_timer
.data
= (unsigned long)umidi
;
1971 /* detect the endpoint(s) to use */
1972 memset(endpoints
, 0, sizeof(endpoints
));
1973 switch (quirk
? quirk
->type
: QUIRK_MIDI_STANDARD_INTERFACE
) {
1974 case QUIRK_MIDI_STANDARD_INTERFACE
:
1975 err
= snd_usbmidi_get_ms_info(umidi
, endpoints
);
1976 if (umidi
->usb_id
== USB_ID(0x0763, 0x0150)) /* M-Audio Uno */
1977 umidi
->usb_protocol_ops
=
1978 &snd_usbmidi_maudio_broken_running_status_ops
;
1980 case QUIRK_MIDI_US122L
:
1981 umidi
->usb_protocol_ops
= &snd_usbmidi_122l_ops
;
1983 case QUIRK_MIDI_FIXED_ENDPOINT
:
1984 memcpy(&endpoints
[0], quirk
->data
,
1985 sizeof(struct snd_usb_midi_endpoint_info
));
1986 err
= snd_usbmidi_detect_endpoints(umidi
, &endpoints
[0], 1);
1988 case QUIRK_MIDI_YAMAHA
:
1989 err
= snd_usbmidi_detect_yamaha(umidi
, &endpoints
[0]);
1991 case QUIRK_MIDI_MIDIMAN
:
1992 umidi
->usb_protocol_ops
= &snd_usbmidi_midiman_ops
;
1993 memcpy(&endpoints
[0], quirk
->data
,
1994 sizeof(struct snd_usb_midi_endpoint_info
));
1997 case QUIRK_MIDI_NOVATION
:
1998 umidi
->usb_protocol_ops
= &snd_usbmidi_novation_ops
;
1999 err
= snd_usbmidi_detect_per_port_endpoints(umidi
, endpoints
);
2001 case QUIRK_MIDI_FASTLANE
:
2002 umidi
->usb_protocol_ops
= &snd_usbmidi_raw_ops
;
2004 * Interface 1 contains isochronous endpoints, but with the same
2005 * numbers as in interface 0. Since it is interface 1 that the
2006 * USB core has most recently seen, these descriptors are now
2007 * associated with the endpoint numbers. This will foul up our
2008 * attempts to submit bulk/interrupt URBs to the endpoints in
2009 * interface 0, so we have to make sure that the USB core looks
2010 * again at interface 0 by calling usb_set_interface() on it.
2012 usb_set_interface(umidi
->dev
, 0, 0);
2013 err
= snd_usbmidi_detect_per_port_endpoints(umidi
, endpoints
);
2015 case QUIRK_MIDI_EMAGIC
:
2016 umidi
->usb_protocol_ops
= &snd_usbmidi_emagic_ops
;
2017 memcpy(&endpoints
[0], quirk
->data
,
2018 sizeof(struct snd_usb_midi_endpoint_info
));
2019 err
= snd_usbmidi_detect_endpoints(umidi
, &endpoints
[0], 1);
2021 case QUIRK_MIDI_CME
:
2022 umidi
->usb_protocol_ops
= &snd_usbmidi_cme_ops
;
2023 err
= snd_usbmidi_detect_per_port_endpoints(umidi
, endpoints
);
2026 snd_printd(KERN_ERR
"invalid quirk type %d\n", quirk
->type
);
2035 /* create rawmidi device */
2038 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
) {
2039 out_ports
+= hweight16(endpoints
[i
].out_cables
);
2040 in_ports
+= hweight16(endpoints
[i
].in_cables
);
2042 err
= snd_usbmidi_create_rawmidi(umidi
, out_ports
, in_ports
);
2048 /* create endpoint/port structures */
2049 if (quirk
&& quirk
->type
== QUIRK_MIDI_MIDIMAN
)
2050 err
= snd_usbmidi_create_endpoints_midiman(umidi
, &endpoints
[0]);
2052 err
= snd_usbmidi_create_endpoints(umidi
, endpoints
);
2054 snd_usbmidi_free(umidi
);
2058 list_add_tail(&umidi
->list
, midi_list
);
2060 for (i
= 0; i
< MIDI_MAX_ENDPOINTS
; ++i
)
2061 snd_usbmidi_input_start_ep(umidi
->endpoints
[i
].in
);
2065 EXPORT_SYMBOL(snd_usbmidi_create
);
2066 EXPORT_SYMBOL(snd_usbmidi_input_stop
);
2067 EXPORT_SYMBOL(snd_usbmidi_input_start
);
2068 EXPORT_SYMBOL(snd_usbmidi_disconnect
);