99f9550881
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15111 a1c6a512-1295-4272-9138-f99709370657
437 lines
13 KiB
C
437 lines
13 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2004 by Linus Nielsen Feltzing
|
|
*
|
|
* 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 "thread.h"
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "file.h"
|
|
#include "debug.h"
|
|
#include "system.h"
|
|
#include "font.h"
|
|
#include "bidi.h"
|
|
|
|
static bool display_on = false; /* is the display turned on? */
|
|
static bool display_flipped = false;
|
|
static int xoffset = 0; /* needed for flip */
|
|
|
|
/* register defines */
|
|
#define R_START_OSC 0x00
|
|
#define R_DRV_OUTPUT_CONTROL 0x01
|
|
#define R_DRV_WAVEFORM_CONTROL 0x02
|
|
#define R_ENTRY_MODE 0x03
|
|
#define R_COMPARE_REG1 0x04
|
|
#define R_COMPARE_REG2 0x05
|
|
|
|
#define R_DISP_CONTROL1 0x07
|
|
#define R_DISP_CONTROL2 0x08
|
|
#define R_DISP_CONTROL3 0x09
|
|
|
|
#define R_FRAME_CYCLE_CONTROL 0x0b
|
|
#define R_EXT_DISP_IF_CONTROL 0x0c
|
|
|
|
#define R_POWER_CONTROL1 0x10
|
|
#define R_POWER_CONTROL2 0x11
|
|
#define R_POWER_CONTROL3 0x12
|
|
#define R_POWER_CONTROL4 0x13
|
|
|
|
#define R_RAM_ADDR_SET 0x21
|
|
#define R_WRITE_DATA_2_GRAM 0x22
|
|
|
|
#define R_GAMMA_FINE_ADJ_POS1 0x30
|
|
#define R_GAMMA_FINE_ADJ_POS2 0x31
|
|
#define R_GAMMA_FINE_ADJ_POS3 0x32
|
|
#define R_GAMMA_GRAD_ADJ_POS 0x33
|
|
|
|
#define R_GAMMA_FINE_ADJ_NEG1 0x34
|
|
#define R_GAMMA_FINE_ADJ_NEG2 0x35
|
|
#define R_GAMMA_FINE_ADJ_NEG3 0x36
|
|
#define R_GAMMA_GRAD_ADJ_NEG 0x37
|
|
|
|
#define R_GAMMA_AMP_ADJ_RES_POS 0x38
|
|
#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
|
|
|
|
#define R_GATE_SCAN_POS 0x40
|
|
#define R_VERT_SCROLL_CONTROL 0x41
|
|
#define R_1ST_SCR_DRV_POS 0x42
|
|
#define R_2ND_SCR_DRV_POS 0x43
|
|
#define R_HORIZ_RAM_ADDR_POS 0x44
|
|
#define R_VERT_RAM_ADDR_POS 0x45
|
|
|
|
#define LCD_CMD (*(volatile unsigned short *)0xf0000000)
|
|
#define LCD_DATA (*(volatile unsigned short *)0xf0000002)
|
|
|
|
#define R_ENTRY_MODE_HORZ 0x7030
|
|
#define R_ENTRY_MODE_VERT 0x7038
|
|
|
|
/* called very frequently - inline! */
|
|
static inline void lcd_write_reg(int reg, int val)
|
|
{
|
|
LCD_CMD = reg;
|
|
LCD_DATA = val;
|
|
}
|
|
|
|
/* called very frequently - inline! */
|
|
static inline void lcd_begin_write_gram(void)
|
|
{
|
|
LCD_CMD = R_WRITE_DATA_2_GRAM;
|
|
}
|
|
|
|
/*** hardware configuration ***/
|
|
|
|
void lcd_set_contrast(int val)
|
|
{
|
|
(void)val;
|
|
}
|
|
|
|
void lcd_set_invert_display(bool yesno)
|
|
{
|
|
(void)yesno;
|
|
}
|
|
|
|
static void flip_lcd(bool yesno)
|
|
{
|
|
if (yesno)
|
|
{
|
|
lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x031b); /* 224 lines, GS=SS=1 */
|
|
lcd_write_reg(R_GATE_SCAN_POS, 0x0002); /* 16 lines offset */
|
|
lcd_write_reg(R_1ST_SCR_DRV_POS, 0xdf04); /* 4..223 */
|
|
}
|
|
else
|
|
{
|
|
lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x001b); /* 224 lines, GS=SS=0 */
|
|
lcd_write_reg(R_GATE_SCAN_POS, 0x0000);
|
|
lcd_write_reg(R_1ST_SCR_DRV_POS, 0xdb00); /* 0..219 */
|
|
}
|
|
}
|
|
|
|
/* turn the display upside down (call lcd_update() afterwards) */
|
|
void lcd_set_flip(bool yesno)
|
|
{
|
|
display_flipped = yesno;
|
|
xoffset = yesno ? 4 : 0;
|
|
|
|
if (display_on)
|
|
flip_lcd(yesno);
|
|
}
|
|
|
|
static void _display_on(void)
|
|
{
|
|
/** Sequence according to datasheet, p. 132 **/
|
|
|
|
lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */
|
|
sleep(1);
|
|
|
|
/* zero everything*/
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON = 0, DTE = 0, D1-0 = 00b */
|
|
lcd_write_reg(R_POWER_CONTROL3, 0x0000); /* PON = 0 */
|
|
lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
|
|
sleep(1);
|
|
|
|
/* initialise power supply */
|
|
|
|
/* DC12-10 = 000b: Step-up1 = clock/8,
|
|
* DC02-00 = 000b: Step-up2 = clock/16,
|
|
* VC2-0 = 010b: VciOUT = 0.87 * VciLVL */
|
|
lcd_write_reg(R_POWER_CONTROL2, 0x0002);
|
|
|
|
/* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
|
|
lcd_write_reg(R_POWER_CONTROL3, 0x0008);
|
|
|
|
/* VDV4-0 = 00110b: VcomA = Vreg1OUT * 0.76,
|
|
* VCM4-0 = 10000b: VcomH = Vreg1OUT * 0.70*/
|
|
lcd_write_reg(R_POWER_CONTROL4, 0x0610);
|
|
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x0044); /* AP2-0 = 100b, DK = 1 */
|
|
lcd_write_reg(R_POWER_CONTROL3, 0x0018); /* PON = 1 */
|
|
|
|
sleep(4); /* Step-up circuit stabilising time */
|
|
|
|
/* start power supply */
|
|
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x0540); /* BT2-0 = 101b, DK = 0 */
|
|
lcd_write_reg(R_POWER_CONTROL4, 0x2610); /* VCOMG = 1 */
|
|
|
|
/* other settings */
|
|
|
|
/* B/C = 1: n-line inversion form
|
|
* EOR = 1: polarity inversion occurs by applying an EOR to odd/even
|
|
* frame select signal and an n-line inversion signal.
|
|
* FLD = 01b: 1 field interlaced scan, external display iface */
|
|
lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
|
|
|
|
/* Address counter updated in vertical direction; left to right;
|
|
* vertical increment horizontal increment.
|
|
* data format for 8bit transfer or spi = 65k (5,6,5)
|
|
* Reverse order of RGB to BGR for 18bit data written to GRAM
|
|
* Replace data on writing to GRAM */
|
|
lcd_write_reg(R_ENTRY_MODE, 0x7038);
|
|
|
|
flip_lcd(display_flipped);
|
|
|
|
lcd_write_reg(R_2ND_SCR_DRV_POS, 0x0000);
|
|
lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
|
|
|
|
/* 19 clocks,no equalization */
|
|
lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0002);
|
|
|
|
/* Transfer mode for RGB interface disabled
|
|
* internal clock operation;
|
|
* System interface/VSYNC interface */
|
|
lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0003);
|
|
|
|
/* Front porch lines: 8; Back porch lines: 8; */
|
|
lcd_write_reg(R_DISP_CONTROL2, 0x0808);
|
|
|
|
/* Scan mode by the gate driver in the non-display area: disabled;
|
|
* Cycle of scan by the gate driver - set to 31frames(518ms),
|
|
* disabled by above setting */
|
|
lcd_write_reg(R_DISP_CONTROL3, 0x003f);
|
|
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0003);
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707);
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0007);
|
|
lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0705);
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0007);
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0000);
|
|
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0407);
|
|
lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0507);
|
|
lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x1d09);
|
|
lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0303);
|
|
|
|
display_on=true; /* must be done before calling lcd_update() */
|
|
lcd_update();
|
|
|
|
sleep(4); /* op-amp stabilising time */
|
|
|
|
/** Sequence according to datasheet, p. 130 **/
|
|
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x4540); /* SAP2-0=100, BT2-0=101, AP2-0=100 */
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0005); /* GON=0, DTE=0, REV=1, D1-0=01 */
|
|
sleep(2);
|
|
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0025); /* GON=1, DTE=0, REV=1, D1-0=01 */
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0027); /* GON=1, DTE=0, REV=1, D1-0=11 */
|
|
sleep(2);
|
|
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0037); /* GON=1, DTE=1, REV=1, D1-0=11 */
|
|
}
|
|
|
|
/* LCD init */
|
|
void lcd_init_device(void)
|
|
{
|
|
/* GPO46 is LCD RESET */
|
|
or_l(0x00004000, &GPIO1_OUT);
|
|
or_l(0x00004000, &GPIO1_ENABLE);
|
|
or_l(0x00004000, &GPIO1_FUNCTION);
|
|
|
|
/* Reset LCD */
|
|
and_l(~0x00004000, &GPIO1_OUT);
|
|
sleep(1);
|
|
or_l(0x00004000, &GPIO1_OUT);
|
|
sleep(1);
|
|
|
|
_display_on();
|
|
}
|
|
|
|
void lcd_enable(bool on)
|
|
{
|
|
if(display_on!=on)
|
|
{
|
|
if(on)
|
|
{
|
|
_display_on();
|
|
}
|
|
else
|
|
{
|
|
/** Off sequence according to datasheet, p. 130 **/
|
|
|
|
lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0002); /* EQ=0, 18 clks/line */
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0036); /* GON=1, DTE=1, REV=1, D1-0=10 */
|
|
sleep(2);
|
|
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0026); /* GON=1, DTE=0, REV=1, D1-0=10 */
|
|
sleep(2);
|
|
|
|
lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON=0, DTE=0, D1-0=00 */
|
|
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* SAP2-0=000, AP2-0=000 */
|
|
lcd_write_reg(R_POWER_CONTROL3, 0x0000); /* PON=0 */
|
|
lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG=0 */
|
|
|
|
/* datasheet p. 131 */
|
|
lcd_write_reg(R_POWER_CONTROL1, 0x0001); /* STB=1: standby mode */
|
|
|
|
display_on=false;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool lcd_enabled(void)
|
|
{
|
|
return display_on;
|
|
}
|
|
|
|
/*** update functions ***/
|
|
|
|
/* Performance function that works with an external buffer
|
|
note that by and bheight are in 8-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;
|
|
/*if(display_on)*/
|
|
}
|
|
|
|
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420.
|
|
* y should have two lines of Y back to back, 2nd line first.
|
|
* c should contain the Cb and Cr data for the two lines of Y back to back.
|
|
* Needs EMAC set to saturated, signed integer mode.
|
|
*/
|
|
extern void lcd_write_yuv420_lines(const unsigned char *y,
|
|
const unsigned char *c, int cwidth);
|
|
|
|
/* Performance function to blit a YUV bitmap directly to the LCD
|
|
* src_x, src_y, width and height should be even
|
|
* x, y, width and height have to be within LCD bounds
|
|
*/
|
|
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)
|
|
{
|
|
/* IRAM Y, Cb and Cb buffers. */
|
|
unsigned char y_ibuf[LCD_WIDTH*2];
|
|
unsigned char c_ibuf[LCD_WIDTH];
|
|
const unsigned char *ysrc, *usrc, *vsrc;
|
|
const unsigned char *ysrc_max;
|
|
|
|
if (!display_on)
|
|
return;
|
|
|
|
width &= ~1; /* stay on the safe side */
|
|
height &= ~1;
|
|
|
|
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
|
|
/* Set start position and window */
|
|
lcd_write_reg(R_VERT_RAM_ADDR_POS, ((xoffset + 219) << 8) | xoffset);
|
|
|
|
ysrc = src[0] + src_y * stride + src_x;
|
|
usrc = src[1] + (src_y * stride >> 2) + (src_x >> 1);
|
|
vsrc = src[2] + (src_y * stride >> 2) + (src_x >> 1);
|
|
ysrc_max = ysrc + height * stride;
|
|
|
|
coldfire_set_macsr(EMAC_SATURATE);
|
|
do
|
|
{
|
|
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((y + 1) << 8) | y);
|
|
lcd_write_reg(R_RAM_ADDR_SET, ((x+xoffset) << 8) | y);
|
|
lcd_begin_write_gram();
|
|
|
|
memcpy(y_ibuf + width, ysrc, width);
|
|
memcpy(y_ibuf, ysrc + stride, width);
|
|
memcpy(c_ibuf, usrc, width >> 1);
|
|
memcpy(c_ibuf + (width >> 1), vsrc, width >> 1);
|
|
lcd_write_yuv420_lines(y_ibuf, c_ibuf, width >> 1);
|
|
|
|
y += 2;
|
|
ysrc += 2 * stride;
|
|
usrc += stride >> 1;
|
|
vsrc += stride >> 1;
|
|
}
|
|
while (ysrc < ysrc_max);
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
if(display_on){
|
|
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VERT);
|
|
/* set start position window */
|
|
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 175 << 8);
|
|
lcd_write_reg(R_VERT_RAM_ADDR_POS,((xoffset+219)<<8) | xoffset);
|
|
lcd_write_reg(R_RAM_ADDR_SET, xoffset << 8);
|
|
|
|
lcd_begin_write_gram();
|
|
|
|
DAR3 = 0xf0000002;
|
|
SAR3 = (unsigned long)lcd_framebuffer;
|
|
BCR3 = LCD_WIDTH*LCD_HEIGHT*2;
|
|
DCR3 = DMA_AA | DMA_BWC(1)
|
|
| DMA_SINC | DMA_SSIZE(DMA_SIZE_LINE)
|
|
| DMA_DSIZE(DMA_SIZE_WORD) | DMA_START;
|
|
|
|
while (!(DSR3 & 1));
|
|
DSR3 = 1;
|
|
}
|
|
}
|
|
|
|
|
|
/* 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)
|
|
{
|
|
unsigned long dma_addr;
|
|
|
|
if(display_on) {
|
|
|
|
if(x + width > LCD_WIDTH)
|
|
width = LCD_WIDTH - x;
|
|
if(width <= 0) /* nothing to do */
|
|
return;
|
|
if(y + height > LCD_HEIGHT)
|
|
height = LCD_HEIGHT - y;
|
|
|
|
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VERT);
|
|
/* set update window */
|
|
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 175 << 8);
|
|
lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+xoffset+width-1) << 8) | (x+xoffset));
|
|
lcd_write_reg(R_RAM_ADDR_SET, ((x+xoffset) << 8) | y);
|
|
lcd_begin_write_gram();
|
|
|
|
DAR3 = 0xf0000002;
|
|
dma_addr = (unsigned long)&lcd_framebuffer[y][x];
|
|
width *= 2;
|
|
|
|
for (; height > 0; height--)
|
|
{
|
|
SAR3 = dma_addr;
|
|
BCR3 = width;
|
|
DCR3 = DMA_AA | DMA_BWC(1)
|
|
| DMA_SINC | DMA_SSIZE(DMA_SIZE_LINE)
|
|
| DMA_DSIZE(DMA_SIZE_WORD) | DMA_START;
|
|
|
|
dma_addr += LCD_WIDTH*2;
|
|
|
|
while (!(DSR3 & 1));
|
|
DSR3 = 1;
|
|
}
|
|
}
|
|
}
|