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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 Andrew Ryabinin
*
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "kernel.h"
#include "lcd.h"
#include "system.h"
#include "cpu.h"
#include "lcdif-rk27xx.h"
static bool display_on = false;
void lcd_display_init(void)
{
int i;
unsigned int x, y;
lcd_cmd(0x00B9);
lcd_data(0x00FF);
lcd_data(0x0093);
lcd_data(0x0042);
lcd_cmd(0x0021); /* display inversion on ??? */
/* memory access control */
lcd_cmd(0x0036);
lcd_data(0x00C9);
/* set 16-bit pixel format */
lcd_cmd(0x003A);
lcd_data(0x0005);
/* Setup color depth conversion lookup table */
lcd_cmd(0x002D);
/* red */
for(i = 0; i < 32; i++)
lcd_data(2*i);
/* green */
for(i = 0; i < 64; i++)
lcd_data(1*i);
/* blue */
for(i = 0; i < 32; i++)
lcd_data(2*i);
/* power control settings */
lcd_cmd(0x00C0);
lcd_data(0x0025); /* VREG1OUT 4.70V */
lcd_data(0x000A); /* VCOM 2.8V */
lcd_cmd(0x00C1);
lcd_data(0x0001);
lcd_cmd(0x00C5);
lcd_data(0x002F);
lcd_data(0x0027);
lcd_cmd(0x00C7);
lcd_data(0x00D3);
lcd_cmd(0x00B8);
lcd_data(0x000B);
/* Positive gamma correction */
lcd_cmd(0x00E0);
lcd_data(0x000F);
lcd_data(0x0022);
lcd_data(0x001D);
lcd_data(0x000B);
lcd_data(0x000F);
lcd_data(0x0007);
lcd_data(0x004C);
lcd_data(0x0076);
lcd_data(0x003C);
lcd_data(0x0009);
lcd_data(0x0016);
lcd_data(0x0007);
lcd_data(0x0012);
lcd_data(0x000B);
lcd_data(0x0008);
/* Negative Gamma Correction */
lcd_cmd(0x00E1);
lcd_data(0x0008);
lcd_data(0x001F);
lcd_data(0x0024);
lcd_data(0x0003);
lcd_data(0x000E);
lcd_data(0x0003);
lcd_data(0x0035);
lcd_data(0x0023);
lcd_data(0x0045);
lcd_data(0x0001);
lcd_data(0x000B);
lcd_data(0x0007);
lcd_data(0x002F);
lcd_data(0x0036);
lcd_data(0x000F);
lcd_cmd(0x00F2);
lcd_data(0x0000);
/* exit sleep */
lcd_cmd(0x0011);
udelay(5000);
lcd_cmd(0x0029);
lcd_cmd(0x002C);
for (x = 0; x < LCD_WIDTH; x++)
for(y=0; y < LCD_HEIGHT; y++)
lcd_data(0x00);
display_on = true;
}
void lcd_enable (bool on)
{
if (on == display_on)
return;
lcdctrl_bypass(1);
LCDC_CTRL |= RGB24B;
if (on) {
lcd_cmd(0x11);
} else {
lcd_cmd(0x10);
}
udelay(5000);
display_on = on;
LCDC_CTRL &= ~RGB24B;
}
void lcd_set_gram_area(int x, int y, int width, int height)
{
lcdctrl_bypass(1);
LCDC_CTRL |= RGB24B;
lcd_cmd(0x002A);
lcd_data((x&0xff00)>>8);
lcd_data(x&0x00ff);
lcd_data(((width-1)&0xff00)>>8);
lcd_data((width-1)&0x00ff);
lcd_cmd(0x002B);
lcd_data((y&0xff00)>>8);
lcd_data(y&0x00ff);
lcd_data(((height-1)&0xff00)>>8);
lcd_data((height-1)&0x00ff);
lcd_cmd(0x2c);
LCDC_CTRL &= ~RGB24B;
}
void lcd_update_rect(int x, int y, int width, int height)
{
int px = x, py = y;
int pxmax = x + width, pymax = y + height;
lcd_set_gram_area(x, y, pxmax, pymax);
for (py = y; py < pymax; py++)
for (px = x; px < pxmax; px++)
LCD_DATA = (*FBADDR(px, py));
}
bool lcd_active()
{
return display_on;
}
/* Blit a YUV bitmap directly to the LCD */
void lcd_blit_yuv(unsigned char * const src[3],
int src_x, int src_y, int stride,
int x, int y, int width, int height)
{
(void)src;
(void)src_x;
(void)src_y;
(void)stride;
(void)x;
(void)y;
(void)width;
(void)height;
}
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