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rockbox/firmware/target/arm/as3525/lcd-fuze.c
Thomas Martitz 281d1fadb3 Do not include kernel.h in system.h. 
system.h doesn't need it on its own and this change makes it less
dependant on Rockbox internals.

Change-Id: I4e1e4108a52a7b599627a829204eb82b392fc6d6
2014-01-05 19:35:23 +01:00

344 lines
9.6 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 by Linus Nielsen Feltzing
* Copyright (C) 2008 by Dave Chapman
*
* 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 "cpu.h"
#include "system.h"
#include "kernel.h"
#include "lcd.h"
#include "file.h"
#include "clock-target.h"
#include "dbop-as3525.h"
#include "lcd-fuze.h"
/* The controller is unknown, but some registers appear to be the same as the
HD66789R */
static bool display_on = false; /* is the display turned on? */
/* Reverse Flag */
static int r_disp_control_rev = R_DISP_CONTROL_NORMAL;
/* Flip flag */
static int r_drv_output_control = R_DRV_OUTPUT_CONTROL_NORMAL;
#ifdef HAVE_LCD_FLIP
static int r_gate_scan_pos = R_GATE_SCAN_POS_NORMAL;
#endif
static int xoffset = 20;
/*** hardware configuration ***/
void lcd_set_invert_display(bool yesno)
{
r_disp_control_rev = yesno ? R_DISP_CONTROL_REV :
R_DISP_CONTROL_NORMAL;
if (display_on)
{
lcd_write_reg(R_DISP_CONTROL1, 0x0013 | r_disp_control_rev);
}
}
#ifdef HAVE_LCD_FLIP
/* turn the display upside down */
void lcd_set_flip(bool yesno)
{
if (yesno)
{
xoffset = 0;
r_drv_output_control = R_DRV_OUTPUT_CONTROL_FLIPPED;
r_gate_scan_pos = R_GATE_SCAN_POS_FLIPPED;
}
else
{
xoffset = 20;
r_drv_output_control = R_DRV_OUTPUT_CONTROL_NORMAL;
r_gate_scan_pos = R_GATE_SCAN_POS_NORMAL;
}
if (display_on)
{
lcd_write_reg(R_GATE_SCAN_POS, r_gate_scan_pos);
lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control);
}
}
#endif
void fuze_display_on(void)
{
/* Initialise in the same way as the original firmare */
lcd_write_reg(R_DISP_CONTROL1, 0);
lcd_write_reg(R_POWER_CONTROL4, 0);
lcd_write_reg(R_POWER_CONTROL2, 0x3704);
lcd_write_reg(0x14, 0x1a1b);
lcd_write_reg(R_POWER_CONTROL1, 0x3860);
lcd_write_reg(R_POWER_CONTROL4, 0x40);
lcd_write_reg(R_POWER_CONTROL4, 0x60);
lcd_write_reg(R_POWER_CONTROL4, 0x70);
lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control);
lcd_write_reg(R_DRV_WAVEFORM_CONTROL, (7<<8));
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
lcd_write_reg(R_DISP_CONTROL2, 0x01);
lcd_write_reg(R_FRAME_CYCLE_CONTROL, (1<<10));
lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0);
lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x40);
lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0687);
lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0306);
lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x104);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0585);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 255+66);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0687+128);
lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 259);
lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0);
lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0);
lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_WIDTH - 1));
lcd_write_reg(R_2ND_SCR_DRV_POS, 0);
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH - 1));
lcd_write_reg(R_VERT_RAM_ADDR_POS, 0);
lcd_write_reg(0x46, (((LCD_WIDTH - 1) + xoffset) << 8) | xoffset);
lcd_write_reg(0x47, (LCD_HEIGHT - 1));
lcd_write_reg(0x48, 0x0);
lcd_write_reg(R_DISP_CONTROL1, 0x11);
lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev);
display_on = true; /* must be done before calling lcd_update() */
lcd_update();
}
#if defined(HAVE_LCD_ENABLE)
void lcd_enable(bool on)
{
if (display_on == on)
return;
if(on)
{
lcd_write_reg(R_START_OSC, 1);
lcd_write_reg(R_POWER_CONTROL1, 0);
lcd_write_reg(R_POWER_CONTROL2, 0x3704);
lcd_write_reg(0x14, 0x1a1b);
lcd_write_reg(R_POWER_CONTROL1, 0x3860);
lcd_write_reg(R_POWER_CONTROL4, 0x40);
lcd_write_reg(R_POWER_CONTROL4, 0x60);
lcd_write_reg(R_POWER_CONTROL4, 112);
lcd_write_reg(R_DISP_CONTROL1, 0x11);
lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev);
lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control);
lcd_write_reg(R_GATE_SCAN_POS, r_gate_scan_pos);
display_on = true;
lcd_update(); /* Resync display */
send_event(LCD_EVENT_ACTIVATION, NULL);
sleep(0);
}
else
{
lcd_write_reg(R_DISP_CONTROL1, 0x22);
lcd_write_reg(R_DISP_CONTROL1, 0);
lcd_write_reg(R_POWER_CONTROL1, 1);
display_on = false;
}
}
#endif
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
bool lcd_active(void)
{
return display_on;
}
#endif
/*** update functions ***/
/* FIXME : find the datasheet for this RENESAS controller so we identify the
* registers used in windowing code (not present in HD66789R) */
/* Set horizontal window addresses */
static void lcd_window_x(int xmin, int xmax)
{
xmin += xoffset;
xmax += xoffset;
lcd_write_reg(0x46, (xmax << 8) | xmin);
lcd_write_reg(0x20, xmin);
}
/* Set vertical window addresses */
static void lcd_window_y(int ymin, int ymax)
{
lcd_write_reg(0x47, ymax);
lcd_write_reg(0x48, ymin);
lcd_write_reg(R_RAM_ADDR_SET, ymin);
}
static unsigned lcd_yuv_options = 0;
void lcd_yuv_set_options(unsigned options)
{
lcd_yuv_options = options;
}
#ifndef BOOTLOADER
/* 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);
extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3],
int width,
int stride,
int x_screen, /* To align dither pattern */
int y_screen);
/* 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_blit_yuv(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;
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_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VIDEO);
lcd_window_x(x, x + width - 1);
if (lcd_yuv_options & LCD_YUV_DITHER)
{
do
{
lcd_window_y(y, y + 1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
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);
}
else
{
do
{
lcd_window_y(y, y + 1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
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);
}
}
#endif
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void)
{
if (!display_on)
return;
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
lcd_window_x(0, LCD_WIDTH - 1);
lcd_window_y(0, LCD_HEIGHT - 1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
dbop_write_data((fb_data*)lcd_framebuffer, 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 *ptr;
if (!display_on)
return;
/* nothing to draw? */
if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) ||
(y >= LCD_HEIGHT) || (x + width <= 0) || (y + height <= 0))
return;
if (x < 0)
{ /* clip left */
width += x;
x = 0;
}
if (y < 0)
{ /* clip top */
height += y;
y = 0;
}
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* clip right */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* clip bottom */
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
/* we need to make x and width even to enable 32bit transfers */
width = (width + (x & 1) + 1) & ~1;
x &= ~1;
lcd_window_x(x, x + width - 1);
lcd_window_y(y, y + height -1);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
ptr = FBADDR(x,y);
do
{
dbop_write_data(ptr, width);
ptr += LCD_WIDTH;
}
while (--height > 0);
}
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