/* * Copyright (c) 2006-2022, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2022-10-19 Nations first version */ #ifndef __DRV_I2C__ #define __DRV_I2C__ #include <rtthread.h> #include <rthw.h> #include <rtdevice.h> #include "board.h" #ifdef __cplusplus extern "C" { #endif /* n32 config class */ struct n32_soft_i2c_config { rt_uint8_t scl; rt_uint8_t sda; const char *bus_name; }; /* n32 i2c dirver class */ struct n32_i2c { struct rt_i2c_bit_ops ops; struct rt_i2c_bus_device i2c2_bus; }; #ifdef BSP_USING_I2C1 #define I2C1_BUS_CONFIG \ { \ .scl = BSP_I2C1_SCL_PIN, \ .sda = BSP_I2C1_SDA_PIN, \ .bus_name = "i2c1", \ } #endif #ifdef BSP_USING_I2C2 #define I2C2_BUS_CONFIG \ { \ .scl = BSP_I2C2_SCL_PIN, \ .sda = BSP_I2C2_SDA_PIN, \ .bus_name = "i2c2", \ } #endif #ifdef BSP_USING_I2C3 #define I2C3_BUS_CONFIG \ { \ .scl = BSP_I2C3_SCL_PIN, \ .sda = BSP_I2C3_SDA_PIN, \ .bus_name = "i2c3", \ } #endif #ifdef BSP_USING_I2C4 #define I2C4_BUS_CONFIG \ { \ .scl = BSP_I2C4_SCL_PIN, \ .sda = BSP_I2C4_SDA_PIN, \ .bus_name = "i2c4", \ } #endif struct rt_i2c_bus { struct rt_i2c_bus_device parent; rt_uint32_t i2c_periph; }; int rt_hw_i2c_init(void); #ifdef __cplusplus } #endif #endif /* __DRV_I2C__ */