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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Mark Arigo
*
* 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 "system.h"
/* Display status */
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
/* wait for LCD */
static inline void lcd_wait_write(void)
{
int i = 0;
while (LCD2_PORT & LCD2_BUSY_MASK)
{
if (i < 2000)
i++;
else
LCD2_PORT &= ~LCD2_BUSY_MASK;
}
}
/* send LCD data */
static void lcd_send_data(unsigned data)
{
lcd_wait_write();
LCD2_PORT = LCD2_DATA_MASK | (data & 0xff);
}
/* send LCD command */
static void lcd_send_cmd(unsigned cmd)
{
lcd_wait_write();
LCD2_PORT = LCD2_CMD_MASK | (cmd & 0xff);
lcd_wait_write();
}
static inline void lcd_send_pixel(unsigned pixel)
{
lcd_send_data(pixel >> 8);
lcd_send_data(pixel);
}
void lcd_init_device(void)
{
#if 0
/* this sequence from the OF bootloader */
DEV_EN2 |= 0x2000;
outl(inl(0x70000014) & ~0xf000000, 0x70000014);
outl(inl(0x70000014) | 0xa000000, 0x70000014);
DEV_INIT1 &= 0xc000;
DEV_INIT1 |= 0x8000;
MLCD_SCLK_DIV &= ~0x800;
CLCD_CLOCK_SRC |= 0xc0000000;
DEV_INIT2 &= ~0x400;
outl(inl(0x7000002c) | ((1<<4)<<24), 0x7000002c);
DEV_INIT2 &= ~((1<<4)<<24);
udelay(10000);
DEV_INIT2 |= ((1<<4)<<24);
outl(0x220, 0x70008a00);
outl(0x1f00, 0x70008a04);
LCD2_BLOCK_CTRL = 0x10008080;
LCD2_BLOCK_CONFIG = 0xF00000;
GPIOJ_ENABLE |= 0x4;
GPIOJ_OUTPUT_VAL |= 0x4;
GPIOJ_OUTPUT_EN |= 0x4;
lcd_send_cmd(0x1);
udelay(10000);
lcd_send_cmd(0x25);
lcd_send_data(0x3f);
lcd_send_cmd(0x11);
udelay(120000);
lcd_send_cmd(0x20);
lcd_send_cmd(0x38);
lcd_send_cmd(0x13);
lcd_send_cmd(0xb4);
lcd_send_data(0x2);
lcd_send_data(0x6);
lcd_send_data(0x8);
lcd_send_data(0xd);
lcd_send_cmd(0xb5);
lcd_send_data(0x2);
lcd_send_data(0x6);
lcd_send_data(0x8);
lcd_send_data(0xd);
lcd_send_cmd(0xb6);
lcd_send_data(0x19);
lcd_send_data(0x23);
lcd_send_data(0x2d);
lcd_send_cmd(0xb7);
lcd_send_data(0x5);
lcd_send_cmd(0xba);
lcd_send_data(0x7);
lcd_send_data(0x18);
lcd_send_cmd(0x36);
lcd_send_data(0);
lcd_send_cmd(0x3a);
lcd_send_data(0x5);
lcd_send_cmd(0x2d);
lcd_send_data(0x1);
lcd_send_data(0x2);
lcd_send_data(0x3);
lcd_send_data(0x4);
lcd_send_data(0x5);
lcd_send_data(0x6);
lcd_send_data(0x7);
lcd_send_data(0x8);
lcd_send_data(0x9);
lcd_send_data(0xa);
lcd_send_data(0xb);
lcd_send_data(0xc);
lcd_send_data(0xd);
lcd_send_data(0xe);
lcd_send_data(0xf);
lcd_send_data(0x10);
lcd_send_data(0x11);
lcd_send_data(0x12);
lcd_send_data(0x13);
lcd_send_data(0x14);
lcd_send_data(0x15);
lcd_send_data(0x16);
lcd_send_data(0x17);
lcd_send_data(0x18);
lcd_send_data(0x19);
lcd_send_data(0x1a);
lcd_send_data(0x1b);
lcd_send_data(0x1c);
lcd_send_data(0x1d);
lcd_send_data(0x1e);
lcd_send_data(0x1f);
lcd_send_data(0x20);
lcd_send_data(0x21);
lcd_send_data(0x22);
lcd_send_data(0x23);
lcd_send_data(0x24);
lcd_send_data(0x25);
lcd_send_data(0x26);
lcd_send_data(0x27);
lcd_send_data(0x28);
lcd_send_data(0x29);
lcd_send_data(0x2a);
lcd_send_data(0x2b);
lcd_send_data(0x2c);
lcd_send_data(0x2d);
lcd_send_data(0x2e);
lcd_send_data(0x2f);
lcd_send_data(0x30);
lcd_send_cmd(0x29);
#endif
}
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
return DEFAULT_CONTRAST_SETTING;
}
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;
}
void lcd_yuv_set_options(unsigned options)
{
lcd_yuv_options = options;
}
/* Performance function to 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;
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void)
{
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
{
const fb_data *addr;
if (x + width >= LCD_WIDTH)
width = LCD_WIDTH - x;
if (y + height >= LCD_HEIGHT)
height = LCD_HEIGHT - y;
if ((width <= 0) || (height <= 0))
return; /* Nothing left to do. */
addr = &lcd_framebuffer[y][x];
lcd_send_cmd(0x2a);
lcd_send_data(x);
lcd_send_data(x + width - 1);
lcd_send_cmd(0x2b);
lcd_send_data(y);
lcd_send_data(y + height - 1);
lcd_send_cmd(0x2c);
do {
int w = width;
do {
lcd_send_pixel(*addr++);
} while (--w > 0);
addr += LCD_WIDTH - width;
} while (--height > 0);
}
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