/* * Copyright (c) 2006-2019, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2019-07-29 zdzn first version */ #ifndef __DRV_I2C_H__ #define __DRV_I2C_H__ #include #include #include "board.h" struct raspi_master_config_t { rt_uint8_t sdl_pin; rt_uint8_t scl_pin; rt_uint8_t sdl_pin_mode; rt_uint8_t scl_pin_mode; rt_uint8_t slave_address; rt_uint32_t bsc_base; rt_uint16_t clk_div; }; struct raspi_i2c_bus { struct rt_i2c_bus_device device; struct rt_i2c_msg *msg; rt_uint32_t msg_cnt; volatile rt_uint32_t msg_ptr; volatile rt_uint32_t dptr; char *device_name; struct raspi_master_config_t *cfg; }; int rt_hw_i2c_init(void); #endif