sound/usb/midi.h

root/sound/usb/midi.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __USBMIDI_H
#define __USBMIDI_H

/* maximum number of endpoints per interface */
#define MIDI_MAX_ENDPOINTS 2

/* data for QUIRK_MIDI_FIXED_ENDPOINT */
struct snd_usb_midi_endpoint_info {
        int8_t   out_ep;        /* ep number, 0 autodetect */
        uint8_t  out_interval;  /* interval for interrupt endpoints */
        int8_t   in_ep;
        uint8_t  in_interval;
        uint16_t out_cables;    /* bitmask */
        uint16_t in_cables;     /* bitmask */
        int16_t  assoc_in_jacks[16];
        int16_t  assoc_out_jacks[16];
};

/* for QUIRK_MIDI_YAMAHA, data is NULL */

/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
 * structure (out_cables and in_cables only) */

/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
 * structures, terminated with .ifnum = -1 */

/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */

/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */

/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */

/* for QUIRK_IGNORE_INTERFACE, data is NULL */

/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */

/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
 * structure (out_cables and in_cables only) */

/* for QUIRK_MIDI_CME, data is NULL */

/* for QUIRK_MIDI_AKAI, data is NULL */

int __snd_usbmidi_create(struct snd_card *card,
                         struct usb_interface *iface,
                         struct list_head *midi_list,
                         const struct snd_usb_audio_quirk *quirk,
                         unsigned int usb_id,
                         unsigned int *num_rawmidis);

static inline int snd_usbmidi_create(struct snd_card *card,
                       struct usb_interface *iface,
                       struct list_head *midi_list,
                       const struct snd_usb_audio_quirk *quirk)
{
        return __snd_usbmidi_create(card, iface, midi_list, quirk, 0, NULL);
}

void snd_usbmidi_input_stop(struct list_head *p);
void snd_usbmidi_input_start(struct list_head *p);
void snd_usbmidi_disconnect(struct list_head *p);
void snd_usbmidi_suspend(struct list_head *p);
void snd_usbmidi_resume(struct list_head *p);

#endif /* __USBMIDI_H */
Linux
