95e6043d5e
Massage the way it interfaces a bit to make things more flexible. The chroma_buf scheme on Sansa Connect and Creative ZVx calling the lcd_write_yuv420_lines implementation in lcd-as-memframe.S with five params with a chroma buffer that the function can't use wouldn't work anyway so just have them use the stock implementation (really, how was that working?). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31335 a1c6a512-1295-4272-9138-f99709370657
384 lines
8.3 KiB
C
384 lines
8.3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 by Greg White
|
|
* Copyright (C) 2009 by Bob Cousins
|
|
*
|
|
* 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 "system.h"
|
|
#include "lcd.h"
|
|
#include "lcd-target.h"
|
|
|
|
extern bool lcd_on; /* lcd-memframe.c */
|
|
|
|
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
|
|
static bool lcd_powered = true;
|
|
#endif
|
|
|
|
static unsigned int LCDBANK(unsigned int address)
|
|
{
|
|
return ((address >> 22) & 0xff);
|
|
}
|
|
|
|
static unsigned int LCDBASEU(unsigned int address)
|
|
{
|
|
return (address & ((1 << 22)-1)) >> 1;
|
|
}
|
|
|
|
static unsigned int LCDBASEL(unsigned int address)
|
|
{
|
|
address += 320*240*2;
|
|
return (address & ((1 << 22)-1)) >> 1;
|
|
}
|
|
|
|
static inline void delay_cycles(volatile int delay)
|
|
{
|
|
while(delay>0) delay--;
|
|
}
|
|
|
|
static void LCD_CTRL_setup(void)
|
|
{
|
|
LCDCON1 = (LCD_CLKVAL << 8) | (LCD_MMODE << 7) | (LCD_PNRMODE << 5) |
|
|
(LCD_BPPMODE << 1);
|
|
LCDCON2 = (LCD_UPPER_MARGIN << 24) | ((LCD_HEIGHT - 1) << 14) |
|
|
(LCD_LOWER_MARGIN << 6) | (LCD_VSYNC_LEN << 0);
|
|
LCDCON3 = (LCD_LEFT_MARGIN << 19) | ((LCD_WIDTH - 1) << 8) |
|
|
(LCD_RIGHT_MARGIN << 0);
|
|
LCDCON4 = (LCD_HSYNC_LEN << 0);
|
|
|
|
/* HWSWP = 1, INVVFRAM = 1, INVVLINE = 1, FRM565 = 1, All others = 0 */
|
|
LCDCON5 = 0xB01;
|
|
|
|
LCDSADDR1 = (LCDBANK((unsigned)FRAME) << 21) | (LCDBASEU((unsigned)FRAME));
|
|
LCDSADDR2 = LCDBASEL((unsigned)FRAME);
|
|
LCDSADDR3 = 0x000000F0;
|
|
}
|
|
|
|
static void LCD_CTRL_clock(bool onoff)
|
|
{
|
|
if(onoff)
|
|
{
|
|
GPCCON &=~0xFFF000FC;
|
|
GPCCON |= 0xAAA000A8;
|
|
GPCUP |= 0xFC0E;
|
|
|
|
GPDCON &=~0xFFF0FFF0;
|
|
GPDCON |= 0xAAA0AAA0;
|
|
GPDUP |= 0xFCFC;
|
|
|
|
bitset32(&CLKCON, 0x20); /* enable LCD clock */
|
|
LCDCON1 |= LCD_ENVID;
|
|
}
|
|
else
|
|
{
|
|
GPCCON &= ~0xFFF000FC;
|
|
GPCUP &= ~0xFC0E;
|
|
|
|
GPDCON &= ~0xFFF0FFF0;
|
|
GPDUP &= ~0xFCFC;
|
|
|
|
LCDCON1 &= ~LCD_ENVID; /* Must disable first or bus may freeze */
|
|
bitclr32(&CLKCON, 0x20); /* disable LCD clock */
|
|
}
|
|
}
|
|
|
|
#ifdef GIGABEAT_F
|
|
static void reset_LCD(bool reset)
|
|
{
|
|
GPBCON&=~0xC000;
|
|
GPBCON|=0x4000;
|
|
if(reset)
|
|
GPBDAT|=0x80;
|
|
else
|
|
GPBDAT&=~0x80;
|
|
}
|
|
#endif
|
|
|
|
|
|
/****************************************************************************/
|
|
#ifdef GIGABEAT_F
|
|
static void LCD_SPI_send(const unsigned char *array, int count)
|
|
{
|
|
while (count--)
|
|
{
|
|
while ((SPSTA0&0x01)==0){};
|
|
SPTDAT0=*array++;
|
|
}
|
|
}
|
|
|
|
static void LCD_SPI_setreg(unsigned char reg, unsigned char value)
|
|
{
|
|
unsigned char regval[] =
|
|
{
|
|
0x00,reg,0x01,value
|
|
};
|
|
LCD_SPI_send(regval, sizeof(regval));
|
|
}
|
|
|
|
static void LCD_SPI_SS(bool select)
|
|
{
|
|
delay_cycles(0x4FFF);
|
|
|
|
GPBCON&=~0x30000;
|
|
GPBCON|=0x10000;
|
|
|
|
if(select)
|
|
GPBDAT|=0x100;
|
|
else
|
|
GPBDAT&=~0x100;
|
|
}
|
|
|
|
static void LCD_SPI_start(void)
|
|
{
|
|
bitset32(&CLKCON, 0x40000); /* enable SPI clock */
|
|
LCD_SPI_SS(false);
|
|
SPCON0=0x3E;
|
|
SPPRE0=24;
|
|
|
|
reset_LCD(true);
|
|
LCD_SPI_SS(true);
|
|
}
|
|
|
|
static void LCD_SPI_stop(void)
|
|
{
|
|
LCD_SPI_SS(false);
|
|
|
|
SPCON0 &= ~0x10;
|
|
bitclr32(&CLKCON, 0x40000); /* disable SPI clock */
|
|
}
|
|
|
|
static void LCD_SPI_init(void)
|
|
{
|
|
/*
|
|
* SPI setup - Some of these registers are known; they are documented in
|
|
* the wiki. Many thanks to Alex Gerchanovsky for discovering this
|
|
* sequence.
|
|
*/
|
|
|
|
LCD_CTRL_clock(true);
|
|
|
|
LCD_SPI_start();
|
|
LCD_SPI_setreg(0x0F, 0x01);
|
|
LCD_SPI_setreg(0x09, 0x06);
|
|
LCD_SPI_setreg(0x16, 0xA6);
|
|
LCD_SPI_setreg(0x1E, 0x49);
|
|
LCD_SPI_setreg(0x1F, 0x26);
|
|
LCD_SPI_setreg(0x0B, 0x2F);
|
|
LCD_SPI_setreg(0x0C, 0x2B);
|
|
LCD_SPI_setreg(0x19, 0x5E);
|
|
LCD_SPI_setreg(0x1A, 0x15);
|
|
LCD_SPI_setreg(0x1B, 0x15);
|
|
LCD_SPI_setreg(0x1D, 0x01);
|
|
LCD_SPI_setreg(0x00, 0x03);
|
|
LCD_SPI_setreg(0x01, 0x10);
|
|
LCD_SPI_setreg(0x02, 0x0A);
|
|
LCD_SPI_setreg(0x06, 0x04); /* Set the orientation */
|
|
LCD_SPI_setreg(0x08, 0x2E);
|
|
LCD_SPI_setreg(0x24, 0x12);
|
|
LCD_SPI_setreg(0x25, 0x3F);
|
|
LCD_SPI_setreg(0x26, 0x0B);
|
|
LCD_SPI_setreg(0x27, 0x00);
|
|
LCD_SPI_setreg(0x28, 0x00);
|
|
LCD_SPI_setreg(0x29, 0xF6);
|
|
LCD_SPI_setreg(0x2A, 0x03);
|
|
LCD_SPI_setreg(0x2B, 0x0A);
|
|
LCD_SPI_setreg(0x04, 0x01); /* Turn the display on */
|
|
LCD_SPI_stop();
|
|
}
|
|
#endif
|
|
/****************************************************************************/
|
|
|
|
/* LCD init */
|
|
void lcd_init_device(void)
|
|
{
|
|
#ifdef BOOTLOADER
|
|
int i;
|
|
/* When the Rockbox bootloader starts the framebuffer address is changed
|
|
* but the LCD display should stay the same til an lcd_update() occurs.
|
|
* This copies the data from the old framebuffer to the new one to make the
|
|
* change non-visable to the user.
|
|
*/
|
|
unsigned short *buf = (unsigned short*)(FRAME);
|
|
unsigned short *oldbuf = (unsigned short*)(LCDSADDR1<<1);
|
|
|
|
/* The Rockbox bootloader is transitioning from RGB555I to RGB565 mode
|
|
so convert the frambuffer data accordingly */
|
|
for(i=0; i< 320*240; i++)
|
|
{
|
|
*(buf++) = ((*oldbuf>>1) & 0x1F) | (*oldbuf & 0xffc0);
|
|
oldbuf++;
|
|
}
|
|
#endif
|
|
|
|
/* Set pins up */
|
|
GPHUP &= 0x600;
|
|
GPECON |= 0x0A800000;
|
|
GPEUP |= 0x3800;
|
|
#ifdef GIGABEAT_F
|
|
GPBUP |= 0x181;
|
|
#endif
|
|
|
|
bitset32(&CLKCON, 0x20); /* enable LCD clock */
|
|
|
|
LCD_CTRL_setup();
|
|
#ifdef GIGABEAT_F
|
|
LCD_SPI_init();
|
|
#else
|
|
LCD_CTRL_clock(true);
|
|
#endif
|
|
|
|
lcd_on = true;
|
|
}
|
|
|
|
#if defined(HAVE_LCD_SLEEP)
|
|
static void LCD_SPI_powerdown(void)
|
|
{
|
|
lcd_powered = false;
|
|
|
|
LCD_SPI_start();
|
|
LCD_SPI_setreg(0x04, 0x00);
|
|
LCD_SPI_stop();
|
|
|
|
reset_LCD(false); /* This makes a big difference on power */
|
|
LCD_CTRL_clock(false);
|
|
}
|
|
|
|
void lcd_sleep(void)
|
|
{
|
|
if (lcd_powered)
|
|
{
|
|
/* "not powered" implies "disabled" */
|
|
lcd_enable(false);
|
|
LCD_SPI_powerdown();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_LCD_ENABLE)
|
|
static void LCD_SPI_powerup(void)
|
|
{
|
|
LCD_CTRL_clock(true);
|
|
|
|
LCD_SPI_start();
|
|
LCD_SPI_setreg(0x04, 0x01);
|
|
LCD_SPI_stop();
|
|
|
|
lcd_powered = true;
|
|
}
|
|
|
|
void lcd_enable(bool state)
|
|
{
|
|
if (state == lcd_on)
|
|
return;
|
|
|
|
if(state)
|
|
{
|
|
/* "enabled" implies "powered" */
|
|
if (!lcd_powered)
|
|
{
|
|
LCD_SPI_powerup();
|
|
/* Wait long enough for a frame to be written - yes, it
|
|
* takes awhile. */
|
|
sleep(HZ/5);
|
|
}
|
|
|
|
lcd_on = true;
|
|
lcd_update();
|
|
send_event(LCD_EVENT_ACTIVATION, NULL);
|
|
}
|
|
else
|
|
{
|
|
lcd_on = false;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef GIGABEAT_F
|
|
void lcd_set_flip(bool yesno)
|
|
{
|
|
if (!lcd_on)
|
|
return;
|
|
|
|
LCD_SPI_start();
|
|
if(yesno)
|
|
{
|
|
LCD_SPI_setreg(0x06, 0x02);
|
|
}
|
|
else
|
|
{
|
|
LCD_SPI_setreg(0x06, 0x04);
|
|
}
|
|
LCD_SPI_stop();
|
|
}
|
|
|
|
int lcd_default_contrast(void)
|
|
{
|
|
return DEFAULT_CONTRAST_SETTING;
|
|
}
|
|
|
|
void lcd_set_contrast(int val)
|
|
{
|
|
if (!lcd_on)
|
|
return;
|
|
|
|
LCD_SPI_start();
|
|
LCD_SPI_setreg(0x0B, (unsigned char) val);
|
|
LCD_SPI_stop();
|
|
}
|
|
|
|
void lcd_set_invert_display(bool yesno)
|
|
{
|
|
if (!lcd_on)
|
|
return;
|
|
|
|
LCD_SPI_start();
|
|
if(yesno)
|
|
{
|
|
LCD_SPI_setreg(0x27, 0x10);
|
|
}
|
|
else
|
|
{
|
|
LCD_SPI_setreg(0x27, 0x00);
|
|
}
|
|
LCD_SPI_stop();
|
|
}
|
|
#else
|
|
void lcd_set_flip(bool yesno)
|
|
{
|
|
(void)yesno;
|
|
/* Not implemented */
|
|
}
|
|
|
|
int lcd_default_contrast(void)
|
|
{
|
|
return DEFAULT_CONTRAST_SETTING;
|
|
}
|
|
|
|
void lcd_set_contrast(int val)
|
|
{
|
|
(void)val;
|
|
/* Not implemented */
|
|
}
|
|
|
|
void lcd_set_invert_display(bool yesno)
|
|
{
|
|
(void)yesno;
|
|
/* Not implemented */
|
|
}
|
|
|
|
#endif
|