esp-idf/components/esp_rom/include/esp_rom_regi2c.h

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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* Espressif private functions. Not for peripherals. Don't use it in your app.
*/
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Read internal register
*
* @param block Block of the register
* @param host_id Host of the register
* @param reg_add Address of the register
* @return uint8_t Register value
*/
uint8_t esp_rom_regi2c_read(uint8_t block, uint8_t host_id, uint8_t reg_add);
/**
* @brief Read internal register, in bits
*
* @param block Block of the register
* @param host_id Host of the register
* @param reg_add Address of the register
* @param msb MSB of the register
* @param lsb LSB of the register
* @return uint8_t Register value
*/
uint8_t esp_rom_regi2c_read_mask(uint8_t block, uint8_t host_id, uint8_t reg_add, uint8_t msb, uint8_t lsb);
/**
* @brief Write internal register
*
* @param block Block of the register
* @param host_id Host of the register
* @param reg_add Address of the register
* @param data Value to write
*/
void esp_rom_regi2c_write(uint8_t block, uint8_t host_id, uint8_t reg_add, uint8_t data);
/**
* @brief Write internal register, in bits
*
* @param block Block of the register
* @param host_id Host of the register
* @param reg_add Address of the register
* @param msb MSB of the register
* @param lsb LSB of the register
* @param data Value to write
*/
void esp_rom_regi2c_write_mask(uint8_t block, uint8_t host_id, uint8_t reg_add, uint8_t msb, uint8_t lsb, uint8_t data);
#ifdef __cplusplus
}
#endif