hecubafb.h

Go to the documentation of this file.

/*
 * 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