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/*
* (C) Copyright 2005
* BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program 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 Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/m5282.h>
#include "VCxK.h"
vu_char *vcxk_bws = (vu_char *)(CONFIG_SYS_CS3_BASE);
#define VCXK_BWS vcxk_bws
static ulong vcxk_driver;
ulong search_vcxk_driver(void);
void vcxk_cls(void);
void vcxk_setbrightness(short brightness);
int vcxk_request(void);
int vcxk_acknowledge_wait(void);
void vcxk_clear(void);
int init_vcxk(void)
{
VIDEO_Invert_CFG &= ~VIDEO_Invert_IO;
VIDEO_INVERT_PORT |= VIDEO_INVERT_PIN;
VIDEO_INVERT_DDR |= VIDEO_INVERT_PIN;
VIDEO_REQUEST_PORT |= VIDEO_REQUEST_PIN;
VIDEO_REQUEST_DDR |= VIDEO_REQUEST_PIN;
VIDEO_ACKNOWLEDGE_DDR &= ~VIDEO_ACKNOWLEDGE_PIN;
vcxk_driver = search_vcxk_driver();
if (vcxk_driver)
{
/* use flash resist driver */
}
else
{
vcxk_cls();
vcxk_cls();
vcxk_setbrightness(1000);
}
VIDEO_ENABLE_DDR |= VIDEO_ENABLE_PIN;
VIDEO_ENABLE_PORT |= VIDEO_ENABLE_PIN;
VIDEO_ENABLE_PORT &= ~VIDEO_ENABLE_PIN;
return 1;
}
void vcxk_loadimage(ulong source)
{
int cnt;
vcxk_acknowledge_wait();
for (cnt=0; cnt<16384; cnt++)
{
VCXK_BWS[cnt*2] = (*(vu_char*) source);
source++;
}
vcxk_request();
}
void vcxk_cls(void)
{
vcxk_acknowledge_wait();
vcxk_clear();
vcxk_request();
}
void vcxk_clear(void)
{
int cnt;
for (cnt=0; cnt<16384; cnt++)
{
VCXK_BWS[cnt*2] = 0x00;
}
}
void vcxk_setbrightness(short brightness)
{
VCXK_BWS[0x8000]=(brightness >> 4) +2;
VCXK_BWS[0xC000]= (brightness + 23) >> 8;
VCXK_BWS[0xC001]= (brightness + 23) & 0xFF;
}
int vcxk_request(void)
{
if (vcxk_driver)
{
/* use flash resist driver */
}
else
{
VIDEO_REQUEST_PORT &= ~VIDEO_REQUEST_PIN;
VIDEO_REQUEST_PORT |= VIDEO_REQUEST_PIN;
}
return 1;
}
int vcxk_acknowledge_wait(void)
{
if (vcxk_driver)
{
/* use flash resist driver */
}
else
{
while (!(VIDEO_ACKNOWLEDGE_PORT & VIDEO_ACKNOWLEDGE_PIN));
}
return 1;
}
ulong search_vcxk_driver(void)
{
return 0;
}
/* eof */
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