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/*
* Copyright (c) 2022, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef USBH_AUDIO_H
#define USBH_AUDIO_H
#include "usb_audio.h"
#ifndef CONFIG_USBHOST_AUDIO_MAX_STREAMS
#define CONFIG_USBHOST_AUDIO_MAX_STREAMS 2
#endif
#ifndef CONFIG_USBHOST_AUDIO_MAX_CHANNELS
#define CONFIG_USBHOST_AUDIO_MAX_CHANNELS 2
#endif
struct usbh_audio_as_msg {
bool is_tx;
uint8_t stream_intf;
uint8_t feature_unit_id;
uint8_t bTerminalLink;
uint8_t bmaControls[(CONFIG_USBHOST_AUDIO_MAX_CHANNELS + 1) * 2];
uint8_t bControlSize;
uint8_t bNrChannels;
uint8_t ep_attr;
struct audio_cs_if_as_format_type_descriptor as_format[CONFIG_USBHOST_MAX_INTF_ALTSETTINGS];
};
struct usbh_audio {
struct usbh_hubport *hport;
struct usb_endpoint_descriptor *isoin; /* ISO IN endpoint */
struct usb_endpoint_descriptor *isoout; /* ISO OUT endpoint */
uint8_t ctrl_intf; /* interface number */
uint8_t minor;
uint16_t isoin_mps;
uint16_t isoout_mps;
bool is_opened;
uint16_t bcdADC;
uint8_t bInCollection;
struct usbh_audio_as_msg as_msg_table[CONFIG_USBHOST_AUDIO_MAX_STREAMS];
void *user_data;
};
#ifdef __cplusplus
extern "C" {
#endif
int usbh_audio_open(struct usbh_audio *audio_class, uint32_t samp_freq, uint8_t bitresolution, bool is_tx);
int usbh_audio_close(struct usbh_audio *audio_class, bool is_tx);
int usbh_audio_set_volume(struct usbh_audio *audio_class, uint8_t volume, bool is_tx);
int usbh_audio_set_mute(struct usbh_audio *audio_class, bool mute, bool is_tx);
void usbh_audio_run(struct usbh_audio *audio_class);
void usbh_audio_stop(struct usbh_audio *audio_class);
#ifdef __cplusplus
}
#endif
#endif /* USBH_AUDIO_H */
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