universal_drivers/pcf8574_driver
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This commit is contained in:
Christian Lind Madsen
2024-01-29 16:46:25 +01:00
parent 505bbf0aa0
commit ed36495f58
2 changed files with 65 additions and 0 deletions
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21
cm_pcf8574_driver.c Normal file
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/*
* cm_pcf8574_driver.c
*
* Created on: 29. jan. 2024
* Author: Chris
*/
#include "cm_pcf8574_driver.h"
int cm_pcf8574_RegTransEvt(cm_pcf8574_t inst, void i2c_inst, setGet_I2C_Event_fpt i2c_transfer_evt){
if(inst == NULL) return CM_PCF8574_NOK;
inst->i2c_inst = i2c_inst;
inst->i2c_transfer_evt = i2c_transfer_evt;
return CM_PCF8574_OK;
}

44
cm_pcf8574_driver.h Normal file
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/*
* cm_pcf8574_driver.h
*
* Created on: 29. jan. 2024
* Author: Chris
*/
#ifndef PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_
#define PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_
enum{
CM_PCF8574_OK = 0,
CM_PCF8574_NOK
};
typedef int (*setGet_I2C_Event_fpt)(void *inst, uint8_t *data, uint32_t len, uint8_t set_get);
typedef struct{
uint8_t B0 : 1;
uint8_t B1 : 1;
uint8_t B2 : 1;
uint8_t B3 : 1;
uint8_t B4 : 1;
uint8_t B5 : 1;
uint8_t B6 : 1;
uint8_t B7 : 1;
}cm_io_port_t;
typedef struct{
void *i2c_inst;
setGet_I2C_Event_fpt i2c_transfer_evt;
cm_io_port_t Port_1;
}cm_pcf8574_t;
int cm_pcf8574_RegTransEvt(cm_pcf8574_t inst, void i2c_inst, setGet_I2C_Event_fpt i2c_transfer_evt);
int cm_pcf8574_init(cm_pcf8574_t *inst);
#endif /* PCF8574_IO_EXPANDER_CM_PCF8574_DRIVER_H_ */