109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// USB Audio Status
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typedef enum {
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USB_AUDIO_STATE_NOT_CONNECTED = 0,
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USB_AUDIO_STATE_CONNECTED,
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USB_AUDIO_STATE_CONFIGURED,
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USB_AUDIO_STATE_STREAMING,
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USB_AUDIO_STATE_ERROR
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} usb_audio_state_t;
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// USB Headset Button Events (HID)
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typedef enum {
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USB_BUTTON_NONE = 0,
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USB_BUTTON_ANSWER,
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USB_BUTTON_HANGUP,
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USB_BUTTON_MUTE,
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USB_BUTTON_VOLUME_UP,
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USB_BUTTON_VOLUME_DOWN
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} usb_button_event_t;
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// USB Audio Info
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typedef struct {
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uint16_t vendor_id;
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uint16_t product_id;
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char product_name[64];
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char manufacturer[64];
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uint32_t sample_rate;
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uint8_t channels;
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uint8_t bit_depth;
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bool has_microphone;
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bool has_speaker;
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bool has_hid; // Hat HID-Tasten
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} usb_audio_info_t;
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// Callbacks
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typedef void (*usb_audio_state_callback_t)(usb_audio_state_t state);
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typedef void (*usb_audio_data_callback_t)(const uint8_t* data, size_t len);
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typedef void (*usb_button_callback_t)(usb_button_event_t event);
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/**
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* Initialisiert den USB Audio Host
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*/
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esp_err_t usb_audio_host_init(void);
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/**
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* Deinitialisiert den USB Audio Host
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*/
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esp_err_t usb_audio_host_deinit(void);
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/**
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* Gibt den aktuellen Status zurück
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*/
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usb_audio_state_t usb_audio_host_get_state(void);
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/**
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* Prüft ob ein USB-Headset angeschlossen ist
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*/
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bool usb_audio_host_is_connected(void);
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/**
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* Gibt Informationen über das angeschlossene Gerät zurück
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*/
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esp_err_t usb_audio_host_get_info(usb_audio_info_t* info);
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/**
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* Startet Audio-Streaming
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*/
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esp_err_t usb_audio_host_start_stream(void);
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/**
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* Stoppt Audio-Streaming
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*/
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esp_err_t usb_audio_host_stop_stream(void);
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/**
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* Sendet Audio-Daten zum USB-Headset (Speaker)
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*/
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esp_err_t usb_audio_host_send(const uint8_t* data, size_t len);
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/**
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* Setzt die Lautstärke (0-100)
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*/
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esp_err_t usb_audio_host_set_volume(uint8_t volume);
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/**
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* Setzt Mute
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*/
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esp_err_t usb_audio_host_set_mute(bool mute);
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/**
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* Registriert Callbacks
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*/
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void usb_audio_host_register_state_callback(usb_audio_state_callback_t callback);
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void usb_audio_host_register_data_callback(usb_audio_data_callback_t callback);
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void usb_audio_host_register_button_callback(usb_button_callback_t callback);
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#ifdef __cplusplus
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}
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#endif
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