1d1a17c0db
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15141 a1c6a512-1295-4272-9138-f99709370657
301 lines
7.8 KiB
C
301 lines
7.8 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 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"
|
|
|
|
/* LCD command set for Samsung S6B33B2 */
|
|
|
|
#define R_OSCILLATION_MODE 0x02
|
|
#define R_DRIVER_OUTPUT_MODE 0x10
|
|
#define R_DCDC_SET 0x20
|
|
#define R_BIAS_SET 0x22
|
|
#define R_DCDC_CLOCK_DIV 0x24
|
|
#define R_DCDC_AMP_ONOFF 0x26
|
|
#define R_TEMP_COMPENSATION 0x28
|
|
#define R_CONTRAST_CONTROL1 0x2a
|
|
#define R_CONTRAST_CONTROL2 0x2b
|
|
#define R_STANDBY_OFF 0x2c
|
|
#define R_STANDBY_ON 0x2d
|
|
#define R_DDRAM_BURST_OFF 0x2e
|
|
#define R_DDRAM_BURST_ON 0x2f
|
|
#define R_ADDRESSING_MODE 0x30
|
|
#define R_ROW_VECTOR_MODE 0x32
|
|
#define R_N_LINE_INVERSION 0x34
|
|
#define R_FRAME_FREQ_CONTROL 0x36
|
|
#define R_RED_PALETTE 0x38
|
|
#define R_GREEN_PALETTE 0x3a
|
|
#define R_BLUE_PALETTE 0x3c
|
|
#define R_ENTRY_MODE 0x40
|
|
#define R_X_ADDR_AREA 0x42
|
|
#define R_Y_ADDR_AREA 0x43
|
|
#define R_RAM_SKIP_AREA 0x45
|
|
#define R_DISPLAY_OFF 0x50
|
|
#define R_DISPLAY_ON 0x51
|
|
#define R_SPEC_DISPLAY_PATTERN 0x53
|
|
#define R_PARTIAL_DISPLAY_MODE 0x55
|
|
#define R_PARTIAL_START_LINE 0x56
|
|
#define R_PARTIAL_END_LINE 0x57
|
|
#define R_AREA_SCROLL_MODE 0x59
|
|
#define R_SCROLL_START_LINE 0x5a
|
|
#define R_DATA_FORMAT_SELECT 0x60
|
|
|
|
|
|
/* wait for LCD */
|
|
static inline void lcd_wait_write(void)
|
|
{
|
|
while (LCD1_CONTROL & LCD1_BUSY_MASK);
|
|
}
|
|
|
|
/* send LCD data */
|
|
static void lcd_send_data(unsigned data)
|
|
{
|
|
lcd_wait_write();
|
|
LCD1_DATA = data >> 8;
|
|
lcd_wait_write();
|
|
LCD1_DATA = data & 0xff;
|
|
}
|
|
|
|
/* send LCD command */
|
|
static void lcd_send_command(unsigned cmd)
|
|
{
|
|
lcd_wait_write();
|
|
LCD1_CMD = cmd;
|
|
}
|
|
|
|
/* LCD init */
|
|
void lcd_init_device(void)
|
|
{
|
|
/* This is from the c200 of bootloader beginning at offset 0xbbf4 */
|
|
outl(inl(0x70000010) & ~0xfc000000, 0x70000010);
|
|
outl(inl(0x70000010), 0x70000010);
|
|
|
|
DEV_INIT2 &= ~0x400;
|
|
udelay(10000);
|
|
|
|
LCD1_CONTROL &= ~0x4;
|
|
udelay(15);
|
|
|
|
LCD1_CONTROL |= 0x4;
|
|
udelay(10);
|
|
|
|
LCD1_CONTROL = 0x4687;
|
|
udelay(10000);
|
|
|
|
lcd_send_command(R_STANDBY_OFF);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_OSCILLATION_MODE);
|
|
lcd_send_command(0x01);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_DCDC_AMP_ONOFF);
|
|
lcd_send_command(0x01);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_DCDC_AMP_ONOFF);
|
|
lcd_send_command(0x09);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_DCDC_AMP_ONOFF);
|
|
lcd_send_command(0x0b);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_DCDC_AMP_ONOFF);
|
|
lcd_send_command(0x0f);
|
|
udelay(20000);
|
|
|
|
lcd_send_command(R_DRIVER_OUTPUT_MODE);
|
|
lcd_send_command(0x07);
|
|
|
|
lcd_send_command(R_DCDC_SET);
|
|
lcd_send_command(0x03);
|
|
|
|
lcd_send_command(R_DCDC_CLOCK_DIV);
|
|
lcd_send_command(0x03);
|
|
|
|
lcd_send_command(R_TEMP_COMPENSATION);
|
|
lcd_send_command(0x01);
|
|
|
|
lcd_send_command(R_CONTRAST_CONTROL1);
|
|
lcd_send_command(0x55);
|
|
|
|
lcd_send_command(R_ADDRESSING_MODE);
|
|
lcd_send_command(0x10);
|
|
|
|
lcd_send_command(R_ROW_VECTOR_MODE);
|
|
lcd_send_command(0x0e);
|
|
|
|
lcd_send_command(R_N_LINE_INVERSION);
|
|
lcd_send_command(0x0d);
|
|
|
|
lcd_send_command(R_FRAME_FREQ_CONTROL);
|
|
lcd_send_command(0);
|
|
|
|
lcd_send_command(R_ENTRY_MODE);
|
|
lcd_send_command(0x82);
|
|
|
|
lcd_send_command(R_Y_ADDR_AREA); /* vertical dimensions */
|
|
lcd_send_command(0x1a); /* y1 + 0x1a */
|
|
lcd_send_command(LCD_HEIGHT - 1 + 0x1a); /* y2 + 0x1a */
|
|
|
|
lcd_send_command(R_X_ADDR_AREA); /* horizontal dimensions */
|
|
lcd_send_command(0); /* x1 */
|
|
lcd_send_command(LCD_WIDTH - 1); /* x2 */
|
|
udelay(100000);
|
|
|
|
lcd_send_command(R_DISPLAY_ON);
|
|
}
|
|
|
|
/*** hardware configuration ***/
|
|
int lcd_default_contrast(void)
|
|
{
|
|
return DEFAULT_CONTRAST_SETTING;
|
|
}
|
|
|
|
void lcd_set_contrast(int val)
|
|
{
|
|
lcd_send_command(R_CONTRAST_CONTROL1);
|
|
lcd_send_command(val);
|
|
}
|
|
|
|
void lcd_set_invert_display(bool yesno)
|
|
{
|
|
/* TODO: Implement lcd_set_invert_display() */
|
|
(void)yesno;
|
|
}
|
|
|
|
/* turn the display upside down (call lcd_update() afterwards) */
|
|
void lcd_set_flip(bool yesno)
|
|
{
|
|
lcd_send_command(R_DRIVER_OUTPUT_MODE);
|
|
lcd_send_command(yesno ? 0x02 : 0x07);
|
|
}
|
|
|
|
/*** update functions ***/
|
|
|
|
/* Performance function that works with an external buffer
|
|
note that by and bheight are in 4-pixel units! */
|
|
void lcd_blit(const fb_data* data, int x, int by, int width,
|
|
int bheight, int stride)
|
|
{
|
|
/* TODO: Implement lcd_blit() */
|
|
(void)data;
|
|
(void)x;
|
|
(void)by;
|
|
(void)width;
|
|
(void)bheight;
|
|
(void)stride;
|
|
}
|
|
|
|
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
|
|
extern void lcd_write_yuv420_lines(unsigned char const * const src[3],
|
|
int width,
|
|
int stride);
|
|
/* Performance function to blit a YUV bitmap directly to the LCD */
|
|
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)
|
|
{
|
|
unsigned char const * yuv_src[3];
|
|
off_t z;
|
|
|
|
/* Sorry, but width and height must be >= 2 or else */
|
|
width &= ~1;
|
|
height >>= 1;
|
|
|
|
y += 0x1a;
|
|
|
|
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]);
|
|
|
|
lcd_send_command(R_ENTRY_MODE);
|
|
lcd_send_command(0x80);
|
|
|
|
lcd_send_command(R_X_ADDR_AREA);
|
|
lcd_send_command(x);
|
|
lcd_send_command(x + width - 1);
|
|
|
|
do
|
|
{
|
|
lcd_send_command(R_Y_ADDR_AREA);
|
|
lcd_send_command(y);
|
|
lcd_send_command(y + 1);
|
|
|
|
lcd_write_yuv420_lines(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;
|
|
y += 2;
|
|
}
|
|
while (--height > 0);
|
|
}
|
|
|
|
/* 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 x0, int y0, int width, int height)
|
|
{
|
|
unsigned short *addr;
|
|
int c, r;
|
|
int x1 = (x0 + width) - 1;
|
|
int y1 = (y0 + height) - 1;
|
|
|
|
if ((x1 <= 0) || (y1 <= 0))
|
|
return;
|
|
|
|
lcd_send_command(R_ENTRY_MODE);
|
|
lcd_send_command(0x82);
|
|
|
|
if(y1 >= LCD_HEIGHT)
|
|
y1 = LCD_HEIGHT - 1;
|
|
|
|
lcd_send_command(R_Y_ADDR_AREA);
|
|
lcd_send_command(y0 + 0x1a);
|
|
lcd_send_command(y1 + 0x1a);
|
|
|
|
if(x1 >= LCD_WIDTH)
|
|
x1 = LCD_WIDTH - 1;
|
|
|
|
lcd_send_command(R_X_ADDR_AREA);
|
|
lcd_send_command(x0);
|
|
lcd_send_command(x1);
|
|
|
|
addr = (unsigned short*)&lcd_framebuffer[y0][x0];
|
|
|
|
/* for each row */
|
|
for (r = 0; r < height; r++) {
|
|
/* for each column */
|
|
for (c = 0; c < width; c++) {
|
|
/* output 1 pixel */
|
|
lcd_send_data(*(addr++));
|
|
}
|
|
|
|
addr += LCD_WIDTH - width;
|
|
}
|
|
}
|