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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include <string.h>
#include <stdlib.h>
#include "file.h"
#include "debug.h"
#include "system.h"
#include "font.h"
#include "bidi.h"
void lcd_write_reg(int reg, int val)
{
*(volatile unsigned short *)0xf0000000 = reg;
*(volatile unsigned short *)0xf0000002 = val;
}
void lcd_begin_write_gram(void)
{
*(volatile unsigned short *)0xf0000000 = 0x22;
}
void lcd_write_data(const unsigned short* p_bytes, int count)
{
while(count--)
*(volatile unsigned short *)0xf0000002 = *p_bytes++;
}
/*** hardware configuration ***/
void lcd_set_contrast(int val)
{
(void)val;
}
void lcd_set_invert_display(bool yesno)
{
(void)yesno;
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
(void)yesno;
}
/* Rolls up the lcd display by the specified amount of lines.
* Lines that are rolled out over the top of the screen are
* rolled in from the bottom again. This is a hardware
* remapping only and all operations on the lcd are affected.
* ->
* @param int lines - The number of lines that are rolled.
* The value must be 0 <= pixels < LCD_HEIGHT. */
void lcd_roll(int lines)
{
(void)lines;
}
/* LCD init */
void lcd_init_device(void)
{
/* GPO46 is LCD RESET */
or_l(0x00004000, &GPIO1_OUT);
or_l(0x00004000, &GPIO1_ENABLE);
or_l(0x00004000, &GPIO1_FUNCTION);
/* Reset LCD */
sleep(1);
and_l(~0x00004000, &GPIO1_OUT);
sleep(1);
or_l(0x00004000, &GPIO1_OUT);
sleep(1);
lcd_write_reg(0x00, 0x0001);
sleep(1);
lcd_write_reg(0x07, 0x0040);
lcd_write_reg(0x12, 0x0000);
lcd_write_reg(0x13, 0x0000);
sleep(1);
lcd_write_reg(0x11, 0x0003);
lcd_write_reg(0x12, 0x0008);
lcd_write_reg(0x13, 0x3617);
lcd_write_reg(0x12, 0x0008);
lcd_write_reg(0x10, 0x0004);
lcd_write_reg(0x10, 0x0004);
lcd_write_reg(0x11, 0x0002);
lcd_write_reg(0x12, 0x0018);
lcd_write_reg(0x10, 0x0044);
sleep(1);
lcd_write_reg(0x10, 0x0144);
lcd_write_reg(0x10, 0x0540);
lcd_write_reg(0x13, 0x3218);
lcd_write_reg(0x01, 0x001b);
lcd_write_reg(0x02, 0x0700);
lcd_write_reg(0x03, 0x7038);
lcd_write_reg(0x04, 0x7030);
lcd_write_reg(0x05, 0x0000);
lcd_write_reg(0x40, 0x0000);
lcd_write_reg(0x41, 0x0000);
lcd_write_reg(0x42, 0xdb00);
lcd_write_reg(0x43, 0x0000);
lcd_write_reg(0x44, 0xaf00);
lcd_write_reg(0x45, 0xdb00);
lcd_write_reg(0x0b, 0x0002);
lcd_write_reg(0x0c, 0x0003);
sleep(1);
lcd_write_reg(0x10, 0x4540);
lcd_write_reg(0x07, 0x0041);
sleep(1);
lcd_write_reg(0x08, 0x0808);
lcd_write_reg(0x09, 0x003f);
sleep(1);
lcd_write_reg(0x07, 0x0636);
sleep(1);
lcd_write_reg(0x07, 0x0626);
sleep(1);
lcd_write_reg(0x30, 0x0003);
lcd_write_reg(0x31, 0x0707);
lcd_write_reg(0x32, 0x0007);
lcd_write_reg(0x33, 0x0705);
lcd_write_reg(0x34, 0x0007);
lcd_write_reg(0x35, 0x0000);
lcd_write_reg(0x36, 0x0407);
lcd_write_reg(0x37, 0x0507);
lcd_write_reg(0x38, 0x1d09);
lcd_write_reg(0x39, 0x0303);
lcd_write_reg(0x13, 0x2610);
/* LCD ON */
lcd_write_reg(0x07, 0x0061);
sleep(1);
lcd_write_reg(0x07, 0x0067);
sleep(1);
lcd_write_reg(0x07, 0x0637);
}
/*** update functions ***/
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit(const fb_data* data, int x, int by, int width,
int bheight, int stride)
{
/* TODO: Implement lcd_blit() */
(void)data;
(void)x;
(void)by;
(void)width;
(void)bheight;
(void)stride;
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void) ICODE_ATTR;
void lcd_update(void)
{
/* Copy display bitmap to hardware */
lcd_write_reg(0x21, 0);
lcd_begin_write_gram();
lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
}
/* Update a fraction of the display. */
void lcd_update_rect(int, int, int, int) ICODE_ATTR;
void lcd_update_rect(int x, int y, int width, int height)
{
int ymax = y + height;
if(x + width > LCD_WIDTH)
width = LCD_WIDTH - x;
if (width <= 0)
return; /* nothing left to do, 0 is harmful to lcd_write_data() */
if(ymax >= LCD_HEIGHT)
ymax = LCD_HEIGHT-1;
/* Copy specified rectangle bitmap to hardware */
for (; y <= ymax; y++)
{
lcd_write_reg(0x21, (x << 8) + y);
lcd_begin_write_gram();
lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width);
}
}
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