rt-thread-official/components/drivers/usb/cherryusb/class/audio/usbh_audio.h

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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"
struct usbh_audio_format_type {
uint8_t channels;
uint8_t format_type;
uint8_t bitresolution;
uint8_t sampfreq_num;
uint32_t sampfreq[3];
};
/**
* bSourceID in feature_unit = input_terminal_id
* bSourceID in output_terminal = feature_unit_id
* terminal_link_id = input_terminal_id or output_terminal_id (if input_terminal_type or output_terminal_type is 0x0101)
*
*
*/
struct usbh_audio_module {
const char *name;
uint8_t data_intf;
uint8_t input_terminal_id;
uint16_t input_terminal_type;
uint16_t input_channel_config;
uint8_t output_terminal_id;
uint16_t output_terminal_type;
uint8_t feature_unit_id;
uint8_t feature_unit_controlsize;
uint8_t feature_unit_controls[8];
uint8_t terminal_link_id;
struct usbh_audio_format_type altsetting[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;
uint8_t num_of_intf_altsettings;
struct usbh_audio_module module[2];
uint8_t module_num;
void *user_data;
};
#ifdef __cplusplus
extern "C" {
#endif
int usbh_audio_open(struct usbh_audio *audio_class, const char *name, uint32_t samp_freq);
int usbh_audio_close(struct usbh_audio *audio_class, const char *name);
int usbh_audio_set_volume(struct usbh_audio *audio_class, const char *name, uint8_t ch, uint8_t volume);
int usbh_audio_set_mute(struct usbh_audio *audio_class, const char *name, uint8_t ch, bool mute);
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 */