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#ifndef _VGA_SUPPORT_H_
#define _VGA_SUPPORT_H_
//==========================================================================
//
//        vga_support.h
//
//        VGA support routines
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under    
// the terms of the GNU General Public License as published by the Free     
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// version.                                                                 
//
// eCos is distributed in the hope that it will be useful, but WITHOUT      
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
// You should have received a copy of the GNU General Public License        
// along with eCos; if not, write to the Free Software Foundation, Inc.,    
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
// and link it with other works to produce a work based on this file,       
// this file does not by itself cause the resulting work to be covered by   
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// General Public License v2.                                               
//
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// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     gthomas
// Contributors:  gthomas
// Date:          2001-09-29
// Description:   Simple VGA support
//####DESCRIPTIONEND####
 
struct vga_info {
    short height, width;  // Pixels
    short bpp;            // Depth (bits/pixel)
    short type;
    short rlen;           // Length of one raster line in bytes
    short access_size;    // Data path width to frame buffer
    short stride;         // Offset (in bytes) between elements
    void  *fb;            // Frame buffer
    void  *ctlr;          // Controller regs
    void  (*off)(void);   // Turn screen off
    void  (*on)(void);    // Turn screen on
};
 
// Frame buffer types - used by MicroWindows
#define FB_TRUE_RGB565 0x01
#define FB_TRUE_RGB555 0x02  
 
// Exported functions
void vga_init(cyg_uint32 *ctlr);
void vga_clear(void);
int  vga_getinfo(struct vga_info *info);
void vga_on(bool enable);
#ifdef CYGSEM_UE250_VGA_COMM 
void vga_screen_clear(void);
void vga_moveto(int X, int Y);
void vga_putc(cyg_uint8 c);
int  _vga_printf(char const *fmt, ...);
void vga_comm_init(cyg_uint32 *addr);
#endif
 
#endif //  _VGA_SUPPORT_H_