GEX port to STM32F072. This is currently the main port.
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gex-f072/GexUnits/din/_din_internal.h

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//
// Created by MightyPork on 2018/02/03.
//
#ifndef GEX_F072_DIN_INTERNAL_H
#define GEX_F072_DIN_INTERNAL_H
#ifndef DIN_INTERNAL
#error bad include!
#endif
#include "unit_base.h"
/** Private data structure */
struct priv {
char port_name;
uint16_t pins; // pin mask
uint16_t pulldown; // pull-downs (default is pull-up)
uint16_t pullup; // pull-ups
uint16_t trig_rise; // pins generating events on rising edge
uint16_t trig_fall; // pins generating events on falling edge
uint16_t trig_holdoff; // ms
uint16_t def_auto; // initial auto triggers
uint16_t arm_auto; // pins armed for auto reporting
uint16_t arm_single; // pins armed for single event
uint16_t holdoff_countdowns[16]; // countdowns to arm for each pin in the bit map
GPIO_TypeDef *port;
};
/** Allocate data structure and set defaults */
error_t DIn_preInit(Unit *unit);
/** Load from a binary buffer stored in Flash */
void DIn_loadBinary(Unit *unit, PayloadParser *pp);
/** Write to a binary buffer for storing in Flash */
void DIn_writeBinary(Unit *unit, PayloadBuilder *pb);
// ------------------------------------------------------------------------
/** Parse a key-value pair from the INI file */
error_t DIn_loadIni(Unit *unit, const char *key, const char *value);
/** Generate INI file section for the unit */
void DIn_writeIni(Unit *unit, IniWriter *iw);
// ------------------------------------------------------------------------
/** Finalize unit set-up */
error_t DIn_init(Unit *unit);
/** Tear down the unit */
void DIn_deInit(Unit *unit);
// ------------------------------------------------------------------------
/**
* EXTI callback for pin change interrupts
*
* @param arg - the unit is passed here
*/
void DIn_handleExti(void *arg);
#endif //GEX_F072_DIN_INTERNAL_H