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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/usb/midi.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#ifndef __USBMIDI_H

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#define __USBMIDI_H

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/* maximum number of endpoints per interface */

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#define MIDI_MAX_ENDPOINTS 2

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/* data for QUIRK_MIDI_FIXED_ENDPOINT */

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struct snd_usb_midi_endpoint_info {

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	int8_t   out_ep;	/* ep number, 0 autodetect */

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	uint8_t  out_interval;	/* interval for interrupt endpoints */

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	int8_t   in_ep;

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	uint8_t  in_interval;

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	uint16_t out_cables;	/* bitmask */

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	uint16_t in_cables;	/* bitmask */

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	int16_t  assoc_in_jacks[16];

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	int16_t  assoc_out_jacks[16];

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};

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/* for QUIRK_MIDI_YAMAHA, data is NULL */

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/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info

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 * structure (out_cables and in_cables only) */

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/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk

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 * structures, terminated with .ifnum = -1 */

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

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

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

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/* for QUIRK_IGNORE_INTERFACE, data is NULL */

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

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/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info

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 * structure (out_cables and in_cables only) */

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/* for QUIRK_MIDI_CME, data is NULL */

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/* for QUIRK_MIDI_AKAI, data is NULL */

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int __snd_usbmidi_create(struct snd_card *card,

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			 struct usb_interface *iface,

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			 struct list_head *midi_list,

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			 const struct snd_usb_audio_quirk *quirk,

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			 unsigned int usb_id,

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			 unsigned int *num_rawmidis);

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static inline int snd_usbmidi_create(struct snd_card *card,

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		       struct usb_interface *iface,

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		       struct list_head *midi_list,

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		       const struct snd_usb_audio_quirk *quirk)

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{

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	return __snd_usbmidi_create(card, iface, midi_list, quirk, 0, NULL);

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}

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void snd_usbmidi_input_stop(struct list_head *p);

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void snd_usbmidi_input_start(struct list_head *p);

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void snd_usbmidi_disconnect(struct list_head *p);

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void snd_usbmidi_suspend(struct list_head *p);

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void snd_usbmidi_resume(struct list_head *p);

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#endif /* __USBMIDI_H */

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