#ifndef DISPLAY_H
#define DISPLAY_H

#include "types.h"

/* Display driver for 8 digit LED on Malta board.
   See pages 14-16 of the Malta board's User's Guide. */

typedef struct {
  uint8_t pad1[8];

  /* LEDBAR: 8 bits, 1 = LED on */
  union {
    uint8_t reg;
    struct {
      uint8_t led0 : 1;
      uint8_t led1 : 1;
      uint8_t led2 : 1;
      uint8_t led3 : 1;
      uint8_t led4 : 1;
      uint8_t led5 : 1;
      uint8_t led6 : 1;
      uint8_t led7 : 1;
    } field;
  } ledbar;
  uint8_t pad2[7];

  /* ASCIIWORD: value written here will be displayed in hex */
  uint32_t asciiword;
  uint8_t  pad3[4];

  /* ASCIIPOSn : ASCII value for LED position 'n' */
  struct {
    uint8_t value;
    uint8_t pad[7];
  } asciipos[8];
} display_t;

static volatile display_t* const malta = (display_t*) (0xbf000400);

#endif