/*
   * hecubafb.h - definitions for the hecuba framebuffer driver
   *
   * Copyright (C) 2008 by Jaya Kumar
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License. See the file COPYING in the main directory of this archive for
   * more details.
   *
   */
  
  #ifndef _LINUX_HECUBAFB_H_
  #define _LINUX_HECUBAFB_H_
  
  /* Apollo controller specific defines */
  #define APOLLO_START_NEW_IMG	0xA0
  #define APOLLO_STOP_IMG_DATA	0xA1
  #define APOLLO_DISPLAY_IMG	0xA2
  #define APOLLO_ERASE_DISPLAY	0xA3
  #define APOLLO_INIT_DISPLAY	0xA4
  
  /* Hecuba interface specific defines */
  #define HCB_WUP_BIT	0x01
  #define HCB_DS_BIT 	0x02
  #define HCB_RW_BIT 	0x04
  #define HCB_CD_BIT 	0x08
  #define HCB_ACK_BIT 	0x80
  
  /* struct used by hecuba. board specific stuff comes from *board */
  struct hecubafb_par {
  	struct fb_info *info;
  	struct hecuba_board *board;
  	void (*send_command)(struct hecubafb_par *, unsigned char);
  	void (*send_data)(struct hecubafb_par *, unsigned char);
  };
  
  /* board specific routines
  board drivers can implement wait_for_ack with interrupts if desired. if
  wait_for_ack is called with clear=0, then go to sleep and return when ack
  goes hi or if wait_for_ack with clear=1, then return when ack goes lo */
  struct hecuba_board {
  	struct module *owner;
  	void (*remove)(struct hecubafb_par *);
  	void (*set_ctl)(struct hecubafb_par *, unsigned char, unsigned char);
  	void (*set_data)(struct hecubafb_par *, unsigned char);
  	void (*wait_for_ack)(struct hecubafb_par *, int);
  	int (*init)(struct hecubafb_par *);
  };
  
  
  #endif