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 */
   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 };
  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
  43 int __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
  49 static 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
  57 void snd_usbmidi_input_stop(struct list_head *p);
  58 void snd_usbmidi_input_start(struct list_head *p);
  59 void snd_usbmidi_disconnect(struct list_head *p);
  60 void snd_usbmidi_suspend(struct list_head *p);
  61 void snd_usbmidi_resume(struct list_head *p);
  62
  63 #endif /* __USBMIDI_H */