116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
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/****************************************************************************
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Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
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This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
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be copied by any method or incorporated into another program without
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the express written consent of Aerospace C.Power. This Information or any portion
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thereof remains the property of Aerospace C.Power. The Information contained herein
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is believed to be accurate and Aerospace C.Power assumes no responsibility or
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liability for its use in any way and conveys no license or title under
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any patent or copyright and makes no representation or warranty that this
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Information is free from patent or copyright infringement.
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****************************************************************************/
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#ifndef IOT_I2C_SLAVE_API_H
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#define IOT_I2C_SLAVE_API_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define IOT_I2C_DIRC_RD 1
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#define IOT_I2C_DIRC_WR 0
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/*
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enum {
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IOT_I2C_S_PORT_0 = 0,
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IOT_I2C_S_PORT_1,
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IOT_I2C_S_PORT_NUM,
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} IOT_I2C_S_PORT;*/
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#define IOT_I2C_S_PORT_0 0
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#define IOT_I2C_S_PORT_1 1
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#define IOT_I2C_S_PORT_NUM 2
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typedef void (*iot_i2c_slave_cb)(bool_t);
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typedef struct _iot_i2c_slave_gpio_sel {
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uint8_t scl;
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uint8_t sda;
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} iot_i2c_slave_gpio_sel_t;
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typedef struct _iot_i2c_slave_cfg {
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/** i2c port number */
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uint8_t port;
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/** i2c slave dev addr */
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uint32_t addr;
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/** gpio number select */
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iot_i2c_slave_gpio_sel_t gpio;
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/** write done callback */
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iot_i2c_slave_cb callback;
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} iot_i2c_slave_cfg_t;
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/**
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* @brief i2c slave initialize
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*
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* @param cfg the pointer of i2c slave configure structure
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*
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* @return 0: slave device init successful
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* @return other: slave device init failed
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*/
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uint8_t iot_i2c_slave_init(iot_i2c_slave_cfg_t *cfg);
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/**
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* @brief i2c slave get recv data num
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*
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* @param port the i2c slave port
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*
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* @return 0: slave device init successful
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* @return other: slave device init failed
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*/
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uint8_t iot_i2c_s_get_data_num(uint8_t port);
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/**
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* @brief i2c slave get status
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*
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* @param port the i2c slave port
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*
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* @return status
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*/
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uint32_t iot_i2c_s_get_st(uint8_t port);
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/**
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* @brief i2c slave clear status
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*
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* @param port the i2c slave port
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*
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* @return None
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*/
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void iot_i2c_s_clear_st(uint8_t port, uint8_t status);
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/**
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* @brief i2c slave read one byte from fifo
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*
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* @param port the i2c slave port
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*
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* @return read byte
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*/
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uint8_t iot_i2c_s_fifo_read_byte(uint8_t port);
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/**
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* @brief i2c slave write date
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*
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* @param port the i2c slave port
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* @param buf the buffer will be send
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* @param len the length of the buffer
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*
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* @return 0 for succ otherwise false
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*/
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uint8_t iot_i2c_s_write_data(uint8_t port, uint8_t *buf, uint32_t len);
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#ifdef __cplusplus
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}
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#endif
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#endif /* IOT_I2C_SLAVE_API_H */
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