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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Karl Kurbjun
*
* Some of this is based on the Cowon A2 Firmware release:
* http://www.cowonglobal.com/download/gnu/cowon_pmp_a2_src_1.59_GPL.tar.gz
*
* 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 "string.h"
#include "lcd.h"
#include "kernel.h"
#include "memory.h"
#include "system-target.h"
/* Copies a rectangle from one framebuffer to another. Can be used in
single transfer mode with width = num pixels, and height = 1 which
allows a full-width rectangle to be copied more efficiently. */
extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
int width, int height);
static volatile bool lcd_on = true;
volatile bool lcd_poweroff = false;
/*
** These are imported from lcd-16bit.c
*/
extern unsigned fg_pattern;
extern unsigned bg_pattern;
bool lcd_enabled(void)
{
return lcd_on;
}
/* LCD init - based on code from ingenient-bsp/bootloader/board/dm320/splash.c
* and code by Catalin Patulea from the M:Robe 500i linux port
*/
void lcd_init_device(void)
{
unsigned int addr;
/* Clear the Frame */
memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
outw(0x00ff, IO_OSD_MODE);
outw(0x0002, IO_OSD_VIDWINMD);
outw(0x2001, IO_OSD_OSDWINMD0);
outw(0x0002, IO_OSD_OSDWINMD1);
outw(0x0000, IO_OSD_ATRMD);
outw(0x0000, IO_OSD_RECTCUR);
outw((480*2) / 32, IO_OSD_OSDWIN0OFST);
addr = ((int)FRAME-CONFIG_SDRAM_START) / 32;
outw(addr >> 16, IO_OSD_OSDWINADH);
outw(addr & 0xFFFF, IO_OSD_OSDWIN0ADL);
outw(80, IO_OSD_BASEPX);
outw(2, IO_OSD_BASEPY);
outw(0, IO_OSD_OSDWIN0XP);
outw(0, IO_OSD_OSDWIN0YP);
outw(480, IO_OSD_OSDWIN0XL);
outw(640, IO_OSD_OSDWIN0YL);
}
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
{
register fb_data *dst, *src;
if (!lcd_on)
return;
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
width += x, x = 0; /* Clip left */
if (width <= 0)
return; /* nothing left to do */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* Clip bottom */
if (y < 0)
height += y, y = 0; /* Clip top */
if (height <= 0)
return; /* nothing left to do */
#if CONFIG_ORIENTATION == SCREEN_PORTAIT
dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
src = &lcd_framebuffer[y][x];
/* Copy part of the Rockbox framebuffer to the second framebuffer */
if (width < LCD_WIDTH)
{
/* Not full width - do line-by-line */
lcd_copy_buffer_rect(dst, src, width, height);
}
else
{
/* Full width - copy as one line */
lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
}
#else
src = &lcd_framebuffer[y][x];
register int xc, yc;
register fb_data *start=FRAME + LCD_HEIGHT*(LCD_WIDTH-x-1) + y + 1;
for(yc=0;yc<height;yc++)
{
dst=start+yc;
for(xc=0; xc<width; xc++)
{
*dst=*src++;
dst-=LCD_HEIGHT;
}
src+=x;
}
#endif
}
void lcd_enable(bool state)
{
(void)state;
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void)
{
if (!lcd_on)
return;
#if CONFIG_ORIENTATION == SCREEN_PORTAIT
lcd_copy_buffer_rect((fb_data *)FRAME, &lcd_framebuffer[0][0],
LCD_WIDTH*LCD_HEIGHT, 1);
#else
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
#endif
}
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
extern void lcd_write_yuv420_lines(fb_data *dst,
unsigned char chroma_buf[LCD_HEIGHT/2*3],
unsigned char const * const src[3],
int width,
int stride);
/* Performance function to blit a YUV bitmap directly to the LCD */
/* For the Gigabeat - show it rotated */
/* So the LCD_WIDTH is now the height */
void lcd_yuv_blit(unsigned char * const src[3],
int src_x, int src_y, int stride,
int x, int y, int width, int height)
{
/* Caches for chroma data so it only need be recaculated every other
line */
/* unsigned char chroma_buf[LCD_HEIGHT/2*3];*/ /* 480 bytes */
unsigned char const * yuv_src[3];
off_t z;
if (!lcd_on)
return;
/* Sorry, but width and height must be >= 2 or else */
width &= ~1;
height >>= 1;
fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + (LCD_WIDTH - y) - 1;
z = stride*src_y;
yuv_src[0] = src[0] + z + src_x;
yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
do
{
/* lcd_write_yuv420_lines(dst, chroma_buf, yuv_src, width,
stride);
*/
yuv_src[0] += stride << 1; /* Skip down two luma lines */
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
yuv_src[2] += stride >> 1;
dst -= 2;
}
while (--height > 0);
}
void lcd_set_contrast(int val) {
(void) val;
// TODO:
}
void lcd_set_invert_display(bool yesno) {
(void) yesno;
// TODO:
}
void lcd_blit(const fb_data* data, int bx, int y, int bwidth,
int height, int stride)
{
(void) data;
(void) bx;
(void) y;
(void) bwidth;
(void) height;
(void) stride;
//TODO:
}
void lcd_set_flip(bool yesno) {
(void) yesno;
// TODO:
}
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