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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Denes Balatoni
*
* 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 "hwcompat.h"
#include "kernel.h"
#include "lcd.h"
#include "system.h"
#include "cpu.h"
#include "inttypes.h"
#include "s5l87xx.h"
/*** definitions ***/
#define STAT_BUS_IDLE (1<<8) /* Data bus idle */
#define STAT_FULL (1<<4) /* FIFO full */
#define STAT_READON (1<<0) /* Read operation done */
/** globals **/
static uint8_t lcd_type;
static int xoffset; /* needed for flip */
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
return 0x1f;
}
void lcd_set_contrast(int val)
{
}
void lcd_set_invert_display(bool yesno)
{
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
/* TODO: flip mode isn't working. The commands in the else part of
this function are how the original firmware inits the LCD */
if (yesno)
{
xoffset = 132 - LCD_WIDTH; /* 132 colums minus the 128 we have */
}
else
{
xoffset = 0;
}
}
static void lcd_sleep(uint32_t t)
{
volatile uint32_t i;
for(i=0;i<t;++i);
}
static uint8_t lcd_readdata(void)
{
LCD_RDATA = 0;
lcd_sleep(64);
return (LCD_DBUFF/* & 0xff*/);
}
static void lcd_writereg(uint32_t reg, uint32_t data)
{
while (LCD_STATUS & STAT_FULL);
LCD_WCMD = reg >> 8;
while (LCD_STATUS & STAT_FULL);
LCD_WCMD = reg & 0xff;
while (LCD_STATUS & STAT_FULL);
LCD_WDATA = data >> 8;
while (LCD_STATUS & STAT_FULL);
LCD_WDATA = data & 0xff;
}
void lcd_on(void) {
if (lcd_type == 1) {
LCD_WCMD = 0x29;
} else {
lcd_writereg(0x7, 0x21);
lcd_writereg(0x12, 0x137);
lcd_sleep(70000);
lcd_writereg(0x7, 0x21);
lcd_writereg(0x12, 0x1137);
lcd_sleep(700000);
lcd_writereg(0x7, 0x233);
}
}
void lcd_off(void) {
/* FIXME wait for DMA to finnish */
if (lcd_type == 1) {
LCD_WCMD = 0x28;
LCD_WDATA = 0;
} else {
}
}
/* LCD init */
void lcd_init_device(void)
{
uint8_t data[5];
int i;
/* init basic things */
PWRCON &= ~0x800;
PCON_ASRAM = 0x2;
PCON7 = 0x12222233;
LCD_CON = 0xca0;
LCD_PHTIME = 0;
LCD_INTCON = 0;
LCD_RST_TIME = 0x7ff;
/* detect lcd type, it's not detected the first time for some reason */
for(i=0;i<3;++i) {
LCD_WCMD = 0x1;
lcd_sleep(166670);
LCD_WCMD = 0x11;
lcd_sleep(2000040);
lcd_readdata();
LCD_WCMD = 0x4;
lcd_sleep(100);
data[0]=lcd_readdata();
data[1]=lcd_readdata();
data[2]=lcd_readdata();
data[3]=lcd_readdata();
data[4]=lcd_readdata();
lcd_type=0;
if (((data[1]==0x38) && ((data[2] & 0xf0) == 0x80)) ||
((data[2]==0x38) && ((data[3] & 0xf0) == 0x80)))
lcd_type=1;
}
/* init lcd */
if (lcd_type == 1) {
LCD_WCMD = 0x3a;
LCD_WDATA = 0x6;
LCD_WCMD = 0xab;
LCD_WCMD = 0x35;
LCD_WDATA = 0;
LCD_WCMD=0x13;
LCD_WCMD = 0x2a;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WCMD = 0x2b;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WCMD = 0x29;
} else {
LCD_WCMD = 0x0;
LCD_WCMD = 0x0;
LCD_WCMD = 0x0;
LCD_WCMD = 0x0;
lcd_sleep(700000);
lcd_writereg(0xa4, 0x1);
lcd_sleep(1100000);
lcd_writereg(0x1, 0x100);
lcd_writereg(0x2, 0x300);
lcd_writereg(0x3, 0x9230);
lcd_writereg(0x8, 0x404);
lcd_writereg(0xe, 0x10);
lcd_writereg(0x70, 0x1000);
lcd_writereg(0x71, 0x1);
lcd_writereg(0x30, 0x2);
lcd_writereg(0x31, 0x400);
lcd_writereg(0x32, 0x7);
lcd_writereg(0x33, 0x500);
lcd_writereg(0x34, 0x7);
lcd_writereg(0x35, 0x703);
lcd_writereg(0x36, 0x507);
lcd_writereg(0x37, 0x5);
lcd_writereg(0x38, 0x1404);
lcd_writereg(0x39, 0xe);
lcd_writereg(0x40, 0x202);
lcd_writereg(0x41, 0x3);
lcd_writereg(0x42, 0x0);
lcd_writereg(0x43, 0x200);
lcd_writereg(0x44, 0x707);
lcd_writereg(0x45, 0x407);
lcd_writereg(0x46, 0x505);
lcd_writereg(0x47, 0x2);
lcd_writereg(0x48, 0x4);
lcd_writereg(0x49, 0x4);
lcd_writereg(0x60, 0x202);
lcd_writereg(0x61, 0x3);
lcd_writereg(0x62, 0x0);
lcd_writereg(0x63, 0x200);
lcd_writereg(0x64, 0x707);
lcd_writereg(0x65, 0x407);
lcd_writereg(0x66, 0x505);
lcd_writereg(0x67, 0x2);
lcd_writereg(0x68, 0x4);
lcd_writereg(0x69, 0x4);
lcd_writereg(0x7, 0x1);
lcd_writereg(0x18, 0x1);
lcd_writereg(0x10, 0x1690);
lcd_writereg(0x11, 0x100);
lcd_writereg(0x12, 0x117);
lcd_writereg(0x13, 0xf80);
lcd_writereg(0x12, 0x137);
lcd_writereg(0x20, 0x0);
lcd_writereg(0x21, 0x0);
lcd_writereg(0x50, 0x0);
lcd_writereg(0x51, 0xaf);
lcd_writereg(0x52, 0x0);
lcd_writereg(0x53, 0x83);
lcd_writereg(0x90, 0x0);
lcd_writereg(0x91, 0x0);
lcd_writereg(0x92, 0x0);
lcd_writereg(0x98, 0x0);
lcd_writereg(0x99, 0x903);
lcd_writereg(0x9a, 0x502);
lcd_writereg(0x9b, 0x300);
LCD_WCMD = 0x0;
LCD_WCMD = 0x22;
lcd_sleep(700000);
lcd_on();
}
}
/*** Update functions ***/
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
int bheight, int stride)
{
/* Copy display bitmap to hardware */
while (bheight--)
{
}
}
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit_grey_phase_blit(unsigned char *values, unsigned char *phases,
int x, int by, int width, int bheight, int stride)
{
(void)values;
(void)phases;
(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)
{
int i;
fb_data *p;
/* Copy display bitmap to hardware */
if (lcd_type == 1) {
LCD_WCMD = 0x2a;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WDATA = 0xaf;
LCD_WCMD = 0x2b;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WDATA = 0;
LCD_WDATA = 0x83;
LCD_WCMD = 0x2c;
} else {
lcd_writereg(0x20, 0x0);
lcd_writereg(0x21, 0x0);
LCD_WCMD = 0;
LCD_WCMD = 0x22;
}
for(p=FBADDR(0,0), i=0;i<LCD_WIDTH*LCD_FBHEIGHT;++i, ++p) {
while (LCD_STATUS & STAT_FULL);
LCD_WDATA = RGB_UNPACK_RED(*p);
while (LCD_STATUS & STAT_FULL);
LCD_WDATA = RGB_UNPACK_GREEN(*p);
while (LCD_STATUS & STAT_FULL);
LCD_WDATA = RGB_UNPACK_BLUE(*p);
}
}
/* 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)
{
lcd_update();
}
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)
{
/* stub */
}
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