volume.h

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#pragma once
 
#include "esp_err.h"
#include <stdint.h>

typedef enum {
    VOLUME_OUT_NONE = 0,  
    VOLUME_OUT_DAC,       
    VOLUME_OUT_BT,        
} volume_output_t;


esp_err_t volume_init(void);

bool volume_poll(int *out_mv, uint8_t *out_level);

bool volume_read_mv(int *out_mv);

void volume_set_output(volume_output_t out);

volume_output_t volume_get_output(void);

void volume_set_fixed(int percent);

void volume_clear_fixed(void);

uint8_t volume_get_level(void);

void volume_set_bt_handler(esp_err_t (*set_abs_vol)(uint8_t volume));

void volume_set_balance(int8_t steps);

int8_t volume_get_balance(void);

void volume_save_balance(void);