/*
 * JZ47xx GPIO lines
 *
 * Written 2010 by Andres Calderon andres.calderon@emqbit.com
 */

#ifndef __jz47xx_gpio_h__
#define __jz47xx_gpio_h__

#define	JZ_GPIO_PORT_A 0
#define	JZ_GPIO_PORT_B 1
#define	JZ_GPIO_PORT_C 2
#define	JZ_GPIO_PORT_D 3

typedef volatile unsigned int JZ_REG;   /* Hardware register definition */

typedef struct _JZ_PIO
{
  JZ_REG PXPIN;                 /* PIN Level Register */
  JZ_REG Reserved0;
  JZ_REG Reserved1;
  JZ_REG Reserved2;
  JZ_REG PXDAT;                 /* Port Data Register */
  JZ_REG PXDATS;                /* Port Data Set Register */
  JZ_REG PXDATC;                /* Port Data Clear Register */
  JZ_REG Reserved3;
  JZ_REG PXIM;                  /* Interrupt Mask Register */
  JZ_REG PXIMS;                 /* Interrupt Mask Set Reg */
  JZ_REG PXIMC;                 /* Interrupt Mask Clear Reg */
  JZ_REG Reserved4;
  JZ_REG PXPE;                  /* Pull Enable Register */
  JZ_REG PXPES;                 /* Pull Enable Set Reg. */
  JZ_REG PXPEC;                 /* Pull Enable Clear Reg. */
  JZ_REG Reserved5;
  JZ_REG PXFUN;                 /* Function Register */
  JZ_REG PXFUNS;                /* Function Set Register */
  JZ_REG PXFUNC;                /* Function Clear Register */
  JZ_REG Reserved6;
  JZ_REG PXSEL;                 /* Select Register */
  JZ_REG PXSELS;                /* Select Set Register */
  JZ_REG PXSELC;                /* Select Clear Register */
  JZ_REG Reserved7;
  JZ_REG PXDIR;                 /* Direction Register */
  JZ_REG PXDIRS;                /* Direction Set Register */
  JZ_REG PXDIRC;                /* Direction Clear Register */
  JZ_REG Reserved8;
  JZ_REG PXTRG;                 /* Trigger Register */
  JZ_REG PXTRGS;                /* Trigger Set Register */
  JZ_REG PXTRGC;                /* Trigger Set Register */
  JZ_REG Reserved9;
  JZ_REG PXFLG;                 /* Port Flag Register */
  JZ_REG PXFLGC;                /* Port Flag clear Register */
} JZ_PIO, *PJZ_PIO;

void jz_gpio_as_output (int port, unsigned int o);

void jz_gpio_as_input (int port, unsigned int o);

void jz_gpio_set_pin (int port, unsigned int o);

void jz_gpio_clear_pin (int port, unsigned int o);

void jz_gpio_out (int port, unsigned int o, unsigned int val);

unsigned int jz_gpio_get_pin (int port, unsigned int o);

JZ_PIO * jz_gpio_map ();

#endif
