54 lines
955 B
C
54 lines
955 B
C
/*
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* cm_pcf8574_driver.h
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*
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* Created on: 29. jan. 2024
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* Author: Chris
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*/
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#ifndef PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_
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#define PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_
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#include "stdint.h"
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enum{
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CM_PCF8574_OK = 0,
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CM_PCF8574_NOK
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};
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enum{
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CM_PCF8574_I2C_GET = 0,
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CM_PCF8574_I2C_SET = 1,
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};
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typedef int (*setGet_I2C_Event_fpt)(void *inst, uint8_t *data, uint32_t len, uint8_t set_get);
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typedef struct{
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uint8_t B0 : 1;
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uint8_t B1 : 1;
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uint8_t B2 : 1;
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uint8_t B3 : 1;
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uint8_t B4 : 1;
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uint8_t B5 : 1;
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uint8_t B6 : 1;
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uint8_t B7 : 1;
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}cm_io_port_t;
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typedef struct{
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void *i2c_inst;
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setGet_I2C_Event_fpt i2c_transfer_evt;
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cm_io_port_t Port_1;
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}cm_pcf8574_t;
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int cm_pcf8574_SetPort(cm_pcf8574_t *inst, uint8_t port_val);
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int cm_pcf8574_RegTransEvt(cm_pcf8574_t *inst, void *i2c_inst, setGet_I2C_Event_fpt i2c_transfer_evt);
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int cm_pcf8574_Init(cm_pcf8574_t *inst);
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#endif /* PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_ */
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