xref: /openbmc/linux/sound/usb/midi.h (revision 3c881e05c814c970e4f9577446a9d3461d134607)
1  /* SPDX-License-Identifier: GPL-2.0 */
2  #ifndef __USBMIDI_H
3  #define __USBMIDI_H
4  
5  /* maximum number of endpoints per interface */
6  #define MIDI_MAX_ENDPOINTS 2
7  
8  /* data for QUIRK_MIDI_FIXED_ENDPOINT */
9  struct snd_usb_midi_endpoint_info {
10  	int8_t   out_ep;	/* ep number, 0 autodetect */
11  	uint8_t  out_interval;	/* interval for interrupt endpoints */
12  	int8_t   in_ep;
13  	uint8_t  in_interval;
14  	uint16_t out_cables;	/* bitmask */
15  	uint16_t in_cables;	/* bitmask */
16  	int16_t  assoc_in_jacks[16];
17  	int16_t  assoc_out_jacks[16];
18  };
19  
20  /* for QUIRK_MIDI_YAMAHA, data is NULL */
21  
22  /* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
23   * structure (out_cables and in_cables only) */
24  
25  /* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
26   * structures, terminated with .ifnum = -1 */
27  
28  /* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
29  
30  /* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
31  
32  /* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
33  
34  /* for QUIRK_IGNORE_INTERFACE, data is NULL */
35  
36  /* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
37  
38  /* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
39   * structure (out_cables and in_cables only) */
40  
41  /* for QUIRK_MIDI_CME, data is NULL */
42  
43  /* for QUIRK_MIDI_AKAI, data is NULL */
44  
45  int __snd_usbmidi_create(struct snd_card *card,
46  			 struct usb_interface *iface,
47  			 struct list_head *midi_list,
48  			 const struct snd_usb_audio_quirk *quirk,
49  			 unsigned int usb_id);
50  
51  static inline int snd_usbmidi_create(struct snd_card *card,
52  		       struct usb_interface *iface,
53  		       struct list_head *midi_list,
54  		       const struct snd_usb_audio_quirk *quirk)
55  {
56  	return __snd_usbmidi_create(card, iface, midi_list, quirk, 0);
57  }
58  
59  void snd_usbmidi_input_stop(struct list_head *p);
60  void snd_usbmidi_input_start(struct list_head *p);
61  void snd_usbmidi_disconnect(struct list_head *p);
62  void snd_usbmidi_suspend(struct list_head *p);
63  void snd_usbmidi_resume(struct list_head *p);
64  
65  #endif /* __USBMIDI_H */
66