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40 lines
873 B
C
40 lines
873 B
C
/*
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* Copyright (c) 2006-2021, 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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* 2012-04-25 weety first version
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*/
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#ifndef __I2C_BIT_OPS_H__
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#define __I2C_BIT_OPS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct rt_i2c_bit_ops
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{
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void *data; /* private data for lowlevel routines */
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void (*set_sda)(void *data, rt_int32_t state);
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void (*set_scl)(void *data, rt_int32_t state);
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rt_int32_t (*get_sda)(void *data);
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rt_int32_t (*get_scl)(void *data);
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void (*udelay)(rt_uint32_t us);
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rt_uint32_t delay_us; /* scl and sda line delay */
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rt_uint32_t timeout; /* in tick */
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};
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rt_err_t rt_i2c_bit_add_bus(struct rt_i2c_bus_device *bus,
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const char *bus_name);
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#ifdef __cplusplus
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}
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#endif
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#endif
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