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esp-idf/components/esp_hal_regi2c/include/hal/regi2c_ctrl.h

47 lines
1.7 KiB
C

/*
* SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
/**
* When compiling G0-layer only, we can't depend on `esp_hw_support` component.
* However, `esp_private/regi2c_ctrl.h` is part of that component.
* Thus, if we don't have this header file in our compilation unit, we should use
* ROM functions.
* The main difference is that `regi2c_ctrl.h` implementation protects the functions
* with mutex. ROM functions must be protected explicitly by the user.
*/
#if __has_include("esp_private/regi2c_ctrl.h")
#include "esp_private/regi2c_ctrl.h"
#else
#include "hal/regi2c_impl.h"
#define REGI2C_WRITE_MASK(block, reg_add, indata) do { \
int __DECLARE_REGI2C_ATOMIC_ENV __attribute__((unused)); \
regi2c_impl_write_mask(block, block##_HOSTID, reg_add, reg_add##_MSB, reg_add##_LSB, indata); \
} while(0)
#define REGI2C_WRITE(block, reg_add, indata) do { \
int __DECLARE_REGI2C_ATOMIC_ENV __attribute__((unused)); \
regi2c_impl_write(block, block##_HOSTID, reg_add, indata); \
} while(0)
#define REGI2C_READ_MASK(block, reg_add) ({ \
int __DECLARE_REGI2C_ATOMIC_ENV __attribute__((unused)); \
regi2c_impl_read_mask(block, block##_HOSTID, reg_add, reg_add##_MSB, reg_add##_LSB); \
})
#define REGI2C_READ(block, reg_add) ({ \
int __DECLARE_REGI2C_ATOMIC_ENV __attribute__((unused)); \
regi2c_impl_read(block, block##_HOSTID, reg_add); \
})
#define REGI2C_ENTER_CRITICAL() int __DECLARE_REGI2C_ATOMIC_ENV __attribute__((unused));
#define REGI2C_EXIT_CRITICAL()
#define REGI2C_CLOCK_ENABLE()
#define REGI2C_CLOCK_DISABLE()
#endif