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esp32/machine_i2c: Factor default pin macros to header file.

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So the implementation of I2CTarget can use them.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2025-07-30 11:26:42 +10:00
parent 79d182deb2
commit ac5b1bce99
2 changed files with 53 additions and 20 deletions
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21
ports/esp32/machine_i2c.c
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@@ -28,32 +28,13 @@
#include "py/mphal.h"
#include "py/mperrno.h"
#include "extmod/modmachine.h"
#include "machine_i2c.h"
#include "driver/i2c.h"
#include "hal/i2c_ll.h"
#if MICROPY_PY_MACHINE_I2C || MICROPY_PY_MACHINE_SOFTI2C
#ifndef MICROPY_HW_I2C0_SCL
#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
#define MICROPY_HW_I2C0_SCL (GPIO_NUM_9)
#define MICROPY_HW_I2C0_SDA (GPIO_NUM_8)
#else
#define MICROPY_HW_I2C0_SCL (GPIO_NUM_18)
#define MICROPY_HW_I2C0_SDA (GPIO_NUM_19)
#endif
#endif
#ifndef MICROPY_HW_I2C1_SCL
#if CONFIG_IDF_TARGET_ESP32
#define MICROPY_HW_I2C1_SCL (GPIO_NUM_25)
#define MICROPY_HW_I2C1_SDA (GPIO_NUM_26)
#else
#define MICROPY_HW_I2C1_SCL (GPIO_NUM_9)
#define MICROPY_HW_I2C1_SDA (GPIO_NUM_8)
#endif
#endif
#if SOC_I2C_SUPPORT_XTAL
#if CONFIG_XTAL_FREQ > 0
#define I2C_SCLK_FREQ (CONFIG_XTAL_FREQ * 1000000)

52
ports/esp32/machine_i2c.h Normal file
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@@ -0,0 +1,52 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019-2025 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_ESP32_MACHINE_I2C_H
#define MICROPY_INCLUDED_ESP32_MACHINE_I2C_H
// Configure default I2C0 pins.
#ifndef MICROPY_HW_I2C0_SCL
#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
#define MICROPY_HW_I2C0_SCL (GPIO_NUM_9)
#define MICROPY_HW_I2C0_SDA (GPIO_NUM_8)
#else
#define MICROPY_HW_I2C0_SCL (GPIO_NUM_18)
#define MICROPY_HW_I2C0_SDA (GPIO_NUM_19)
#endif
#endif
// Configure default I2C1 pins.
#ifndef MICROPY_HW_I2C1_SCL
#if CONFIG_IDF_TARGET_ESP32
#define MICROPY_HW_I2C1_SCL (GPIO_NUM_25)
#define MICROPY_HW_I2C1_SDA (GPIO_NUM_26)
#else
#define MICROPY_HW_I2C1_SCL (GPIO_NUM_9)
#define MICROPY_HW_I2C1_SDA (GPIO_NUM_8)
#endif
#endif
#endif // MICROPY_INCLUDED_ESP32_MACHINE_I2C_H