dinput.h

#ifndef _SYSIO_DINPUT_H_
#define _SYSIO_DINPUT_H_
#include <sysio/gpio.h>

#ifndef __DOXYGEN__

#ifdef __cplusplus
  extern "C" {
#endif
/* ========================================================================== */

/*
 *  @example dinput/poll/sysio_test_dinput_poll.c
 *  Utilisation en scrutation
 *  @example dinput/callback/sysio_test_dinput_callback.c
 *  Utilisation en "interruption"
 *  @example dinput/group/sysio_test_dinput_group.c
 *  Utilisation en "interruption" groupée
 */
/* constants ================================================================ */
typedef enum {
  eEdgeNone = 0,                          
  eEdgeFalling = 1,                       
  eEdgeRising  = 2,                       
  eEdgeBoth = eEdgeFalling + eEdgeRising, 
} eDinEdge;

/* structures =============================================================== */
typedef struct xDin {
  int num;          
  bool act;         
  eGpioPull pull;  
} xDin;

typedef struct xDinPort xDinPort;

/* types ==================================================================== */
typedef int (*iDinCallback) (eDinEdge edge, void *udata);

typedef int (*iDinGrpCallback) (unsigned uInputMask, unsigned uInputNumber, eDinEdge edge, void *udata);

/* internal public functions ================================================ */

xDinPort * xDinOpen (const xDin * pins, unsigned size);

int iDinClose (xDinPort * port);

int iDinPortSize (xDinPort * port);

int iDinRead (unsigned input, xDinPort * port);

int iDinReadAll (xDinPort * port);

int iDinSetEdge (unsigned input, eDinEdge edge, xDinPort * port);

eDinEdge eDinGetEdge (unsigned input, xDinPort *port);


int iDinEdgeOccured (unsigned input, xDinPort * port);

int iDinSetCallback (unsigned input, eDinEdge edge, iDinCallback callback, void *udata, xDinPort * port);

int iDinSetGrpCallback (eDinEdge edge, iDinGrpCallback callback, void *udata, xDinPort * port);

int iDinClearCallback (unsigned input, xDinPort * port);

int iDinClearGrpCallback (xDinPort * port);

int iDinCallbackInstalled (unsigned input, xDinPort *port);

void * pDinCallbackData (unsigned input, xDinPort *port);

#ifdef __cplusplus
  }
#endif
#endif // __DOXYGEN__
/* ========================================================================== */
#endif /*_SYSIO_DINPUT_H_ defined */