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