#ifndef BACKLIGHT_H
#define BACKLIGHT_H

#include <stdbool.h>
#include <stdint.h>

#include "esp_err.h"

/*
 * STC8H1K28 board controller (I2C 0x30) on the CrowPanel 7" Advance.
 *
 * It owns more than the backlight: its init sequence also drives the GT911
 * reset line, so this must run before the touch controller will answer on
 * the bus at all. Requires i2c_bus_init() first.
 */
esp_err_t backlight_init(void);

/* 0 = off, 255 = full. The v1.3 wire protocol is inverted; that is handled
 * internally so callers can use the intuitive direction. */
esp_err_t backlight_set(uint8_t brightness);

#endif