LXR linux/sound/usb/midi.h

   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 */
   9struct 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};
  17
  18/* for QUIRK_MIDI_YAMAHA, data is NULL */
  19
  20/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
  21 * structure (out_cables and in_cables only) */
  22
  23/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
  24 * structures, terminated with .ifnum = -1 */
  25
  26/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
  27
  28/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
  29
  30/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
  31
  32/* for QUIRK_IGNORE_INTERFACE, data is NULL */
  33
  34/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
  35
  36/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
  37 * structure (out_cables and in_cables only) */
  38
  39/* for QUIRK_MIDI_CME, data is NULL */
  40
  41/* for QUIRK_MIDI_AKAI, data is NULL */
  42
  43int __snd_usbmidi_create(struct snd_card *card,
  44                         struct usb_interface *iface,
  45                         struct list_head *midi_list,
  46                         const struct snd_usb_audio_quirk *quirk,
  47                         unsigned int usb_id);
  48
  49static inline int snd_usbmidi_create(struct snd_card *card,
  50                       struct usb_interface *iface,
  51                       struct list_head *midi_list,
  52                       const struct snd_usb_audio_quirk *quirk)
  53{
  54        return __snd_usbmidi_create(card, iface, midi_list, quirk, 0);
  55}
  56
  57void snd_usbmidi_input_stop(struct list_head *p);
  58void snd_usbmidi_input_start(struct list_head *p);
  59void snd_usbmidi_disconnect(struct list_head *p);
  60void snd_usbmidi_suspend(struct list_head *p);
  61void snd_usbmidi_resume(struct list_head *p);
  62
  63#endif /* __USBMIDI_H */
  64