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rockbox/firmware/target/arm/pbell/vibe500/lcd-vibe500.c
Jonathan Gordon b37e6bc8c1 lcd drivers: Convert lcd_[remote_]framebuffer to a pointer 
Change all lcd drivers to using a pointer to the static framebuffer
instead of directly accessing the static array. This will let us
later do fun things like dynamic framebuffer sizes (RaaA) or
ability to use different buffers for different layers (dynamic
skin backdrops!)

Change-Id: I0a4d58a9d7b55e6c932131b929e5d4c9f9414b06
2012-02-28 11:44:59 +11:00

503 lines
14 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2009 by Szymon Dziok
* Based on the Iriver H10 code by Barry Wardell
*
* 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 "lcd.h"
#include "kernel.h"
#include "system.h"
/** Initialized in lcd_init_device() **/
/* Is the power turned on? */
static bool power_on;
/* Is the display turned on? */
static bool display_on;
/* Reverse flag. Must be remembered when display is turned off. */
static unsigned short disp_control_rev;
/* Contrast setting << 8 */
static int lcd_contrast;
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
/* Forward declarations */
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
static void lcd_display_off(void);
#endif
/* register defines for the Renesas HD66773R */
/*
In Packard Bell from the OF - it seems to be
HD66774(gate) with HD66772(source) - registers
are very similar but not all the same
*/
#define R_START_OSC 0x00
#define R_DEVICE_CODE_READ 0x00
#define R_DRV_OUTPUT_CONTROL 0x01
#define R_DRV_AC_CONTROL 0x02
#define R_POWER_CONTROL1 0x03
#define R_POWER_CONTROL2 0x04
#define R_ENTRY_MODE 0x05
#define R_COMPARE_REG 0x06
#define R_DISP_CONTROL 0x07
#define R_FRAME_CYCLE_CONTROL 0x0b
#define R_POWER_CONTROL3 0x0c
#define R_POWER_CONTROL4 0x0d
#define R_POWER_CONTROL5 0x0e
#define R_GATE_SCAN_START_POS 0x0f
#define R_VERT_SCROLL_CONTROL 0x11
#define R_1ST_SCR_DRV_POS 0x14
#define R_2ND_SCR_DRV_POS 0x15
#define R_HORIZ_RAM_ADDR_POS 0x16
#define R_VERT_RAM_ADDR_POS 0x17
#define R_RAM_WRITE_DATA_MASK 0x20
#define R_RAM_ADDR_SET 0x21
#define R_WRITE_DATA_2_GRAM 0x22
#define R_RAM_READ_DATA 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_POS 0x3a
#define R_GAMMA_AMP_ADJ_NEG 0x3b
static inline void lcd_wait_write(void)
{
while (LCD1_CONTROL & LCD1_BUSY_MASK);
}
/* Send command */
static inline void lcd_send_cmd(unsigned v)
{
lcd_wait_write();
LCD1_CMD = (v >> 8);
lcd_wait_write();
LCD1_CMD = (v & 0xff);
}
/* Send 16-bit data */
static inline void lcd_send_data(unsigned v)
{
lcd_wait_write();
LCD1_DATA = (v >> 8);
lcd_wait_write();
LCD1_DATA = (v & 0xff);
}
/* Send 16-bit data byte-swapped. */
static inline void lcd_send_data_swapped(unsigned v)
{
lcd_wait_write();
LCD1_DATA = (v & 0xff);
lcd_wait_write();
LCD1_DATA = (v >> 8);
}
/* Write value to register */
static void lcd_write_reg(int reg, int val)
{
lcd_send_cmd(reg);
lcd_send_data(val);
}
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
return DEFAULT_CONTRAST_SETTING;
}
void lcd_set_contrast(int val)
{
lcd_contrast = (val&0x1f) << 8;
if (!power_on) return;
/* VCOMG=1, VDV4-0=xxxxx, VCM4-0=11000 */
lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
}
void lcd_set_invert_display(bool yesno)
{
if (yesno == (disp_control_rev == 0x0000))
return;
disp_control_rev = yesno ? 0x0000 : 0x0004;
if (!display_on)
return;
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */
lcd_write_reg(R_DISP_CONTROL, 0x0033 | disp_control_rev);
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
if (!power_on)
return;
/* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160) */
lcd_write_reg(R_DRV_OUTPUT_CONTROL, yesno ? 0x0313 : 0x0013);
}
/* LCD init */
void lcd_init_device(void)
{
power_on = true;
display_on = true;
disp_control_rev = 0x0004;
lcd_contrast = DEFAULT_CONTRAST_SETTING << 8;
}
#ifdef HAVE_LCD_SLEEP
static void lcd_power_on(void)
{
/* from the OF */
lcd_write_reg(R_START_OSC,0x01); /* START_OSC */
sleep(HZ/40); /* 25ms */
/* set 396x160 dots, SM=0, GS=x, SS=0, NL4-0=10011 G1-G160)*/
lcd_write_reg(R_DRV_OUTPUT_CONTROL,0x13);
/* FLD1-0=01 (1 field), B/C=1, EOR=1 (C-pat), NW5-0=000000 (1 row) */
lcd_write_reg(R_DRV_AC_CONTROL,7 << 8);
/* DIT=0, BGR=1, HWM=0, I/D1-0=0 - decrement AC, AM=1, LG2-0=000 */
lcd_write_reg(R_ENTRY_MODE,0x1008);
lcd_write_reg(0x25,0x0000); /* - ?? */
lcd_write_reg(0x26,0x0202); /* - ?? */
lcd_write_reg(0x0A,0x0000); /* - ?? */
lcd_write_reg(R_FRAME_CYCLE_CONTROL,0x0000);
lcd_write_reg(R_POWER_CONTROL4,0x0000);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0x0000);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL3,0x0000);
lcd_write_reg(0x09,0x0008); /* - ?? */
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL4,0x0003);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0x1019);
sleep(HZ/20); /* 50ms */
lcd_write_reg(R_POWER_CONTROL4,0x0013);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL1,0x0010);
sleep(HZ/67); /* 15ms */
lcd_write_reg(0x09,0x0000); /* - ?? */
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL1,0x0010);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0x3019);
sleep(HZ*10/66);/* /6.6 = 150ms */
lcd_write_reg(0x09,0x0002); /* - ?? */
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL4,0x0018);
sleep(HZ/20); /* 50ms */
/* RAM Address set (0x0000) */
lcd_write_reg(R_RAM_ADDR_SET,0x0000);
/* Gamma settings */
lcd_write_reg(R_GAMMA_FINE_ADJ_POS1,0x0004);
lcd_write_reg(R_GAMMA_FINE_ADJ_POS2,0x0606);
lcd_write_reg(R_GAMMA_FINE_ADJ_POS3,0x0505);
lcd_write_reg(R_GAMMA_GRAD_ADJ_POS,0x0206);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1,0x0505);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2,0x0707);
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3,0x0105);
lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG,0x0301);
lcd_write_reg(R_GAMMA_AMP_ADJ_POS,0x1A00);
lcd_write_reg(R_GAMMA_AMP_ADJ_NEG,0x010E);
lcd_write_reg(R_GATE_SCAN_START_POS,0x0000);
/* Horizontal ram address start/end position (0,127); */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,0x7F00);
/* Vertical ram address start/end position (0,159); */
lcd_write_reg(R_VERT_RAM_ADDR_POS,0x9F00);
lcd_write_reg(R_DISP_CONTROL,0x0005);
sleep(HZ/25); /* 40ms */
lcd_write_reg(R_DISP_CONTROL,0x0025);
lcd_write_reg(R_DISP_CONTROL,0x0027);
sleep(HZ/25); /* 40ms */
lcd_write_reg(R_DISP_CONTROL,0x0033 | disp_control_rev);
sleep(HZ/100); /* 10ms */
lcd_write_reg(R_POWER_CONTROL1,0x0110);
lcd_write_reg(R_FRAME_CYCLE_CONTROL,0x0000);
lcd_write_reg(R_POWER_CONTROL4,0x0013);
lcd_write_reg(R_POWER_CONTROL5,0x2018 | lcd_contrast);
sleep(HZ/20); /* 50ms */
power_on = true;
}
static void lcd_power_off(void)
{
/* Display must be off first */
if (display_on)
lcd_display_off();
/* power_on = false; */
/** Power OFF sequence **/
/* The method is unknown */
}
void lcd_sleep(void)
{
if (power_on)
lcd_power_off();
/* Set standby mode */
/* Because we dont know how to power off display
we cannot set standby */
/* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=1 */
/* lcd_write_reg(R_POWER_CONTROL1, 0x0001); */
}
#endif
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
static void lcd_display_off(void)
{
display_on = false;
/** Display OFF sequence **/
/* In the OF it is called "EnterStandby" */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=10 */
lcd_write_reg(R_DISP_CONTROL, 0x0032 | disp_control_rev);
sleep(HZ/22); /* 45ms */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=10 */
lcd_write_reg(R_DISP_CONTROL, 0x0022 | disp_control_rev);
sleep(HZ/22); /* 45ms */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=00 */
lcd_write_reg(R_DISP_CONTROL, 0x0000);
lcd_write_reg(R_POWER_CONTROL1, 0x0000);
lcd_write_reg(0x09, 0x0000); /* -?? */
lcd_write_reg(R_POWER_CONTROL4, 0x0000);
sleep(HZ/22); /* 45ms */
}
#endif
#if defined(HAVE_LCD_ENABLE)
static void lcd_display_on(void)
{
/* Be sure power is on first */
if (!power_on)
lcd_power_on();
/** Display ON Sequence **/
/* In the OF it is called "ExitStandby" */
lcd_write_reg(R_START_OSC,1);
sleep(HZ/40); /* 25ms */
lcd_write_reg(R_POWER_CONTROL4,0);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_DISP_CONTROL,0);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL3,0);
lcd_write_reg(0x09,8); /* -?? */
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL4,3);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0x1019);
sleep(HZ/20); /* 50ms */
lcd_write_reg(R_POWER_CONTROL4,0x13);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL1,0x10);
sleep(HZ/20); /* 50ms */
lcd_write_reg(0x09,0); /* -?? */
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL1,0x10);
sleep(HZ/67); /* 15ms */
lcd_write_reg(R_POWER_CONTROL5,0x3019);
sleep(HZ*10/66);/* /6.6 = 150ms */
lcd_write_reg(0x09,2); /* -?? */
sleep(HZ/20); /* 50ms */
lcd_write_reg(R_DISP_CONTROL,5);
sleep(HZ/22); /* 45ms */
lcd_write_reg(R_DISP_CONTROL,0x25);
sleep(HZ/22); /* 45ms */
lcd_write_reg(R_DISP_CONTROL,0x27);
sleep(HZ/25); /* 40ms */
lcd_write_reg(R_DISP_CONTROL,0x33 | disp_control_rev);
sleep(HZ/22); /* 45ms */
/* fix contrast */
lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
display_on = true;
}
void lcd_enable(bool on)
{
if (on == display_on)
return;
if (on)
{
lcd_display_on();
/* Probably out of sync and we don't wanna pepper the code with
lcd_update() calls for this. */
lcd_update();
send_event(LCD_EVENT_ACTIVATION, NULL);
}
else
{
lcd_display_off();
}
}
#endif
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
bool lcd_active(void)
{
return display_on;
}
#endif
/*** update functions ***/
void lcd_yuv_set_options(unsigned options)
{
lcd_yuv_options = options;
}
/* 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 */
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)
{
const unsigned char *yuv_src[3];
const unsigned char *ysrc_max;
int y0;
int options;
if (!display_on)
return;
width &= ~1;
height &= ~1;
lcd_write_reg(R_VERT_RAM_ADDR_POS, ((LCD_WIDTH - 1 - x) << 8) |
((LCD_WIDTH-1) - (x + width - 1)));
y0 = LCD_HEIGHT - 1 - y;
lcd_write_reg(R_ENTRY_MODE,0x1000);
yuv_src[0] = src[0] + src_y * stride + src_x;
yuv_src[1] = src[1] + (src_y * stride >> 2) + (src_x >> 1);
yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
ysrc_max = yuv_src[0] + height * stride;
options = lcd_yuv_options;
do
{
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (y0 << 8) | (y0 - 1));
lcd_write_reg(R_RAM_ADDR_SET, ((LCD_WIDTH - 1 - x) << 8) | y0);
/* start drawing */
lcd_send_cmd(R_WRITE_DATA_2_GRAM);
if (options & LCD_YUV_DITHER)
{
lcd_write_yuv420_lines_odither(yuv_src, width, stride,x, y);
y -= 2;
}
else
{
lcd_write_yuv420_lines(yuv_src, width, stride);
}
y0 -= 2;
yuv_src[0] += stride << 1;
yuv_src[1] += stride >> 1;
yuv_src[2] += stride >> 1;
}
while (yuv_src[0] < ysrc_max);
lcd_write_reg(R_ENTRY_MODE,0x1008);
}
/* Update a fraction of the display. */
void lcd_update_rect(int x0, int y0, int width, int height)
{
const fb_data *addr;
int x1, y1;
if (!display_on)
return;
if ((width<=0)||(height<=0))
return;
if ((x0 + width)>=LCD_WIDTH)
width = LCD_WIDTH - x0;
if ((y0 + height)>=LCD_HEIGHT)
height = LCD_HEIGHT - y0;
y1 = (y0 + height) - 1;
x1 = (x0 + width) - 1;
/* In the PB Vibe LCD is flipped and the RAM addresses are decremented */
lcd_send_cmd(R_HORIZ_RAM_ADDR_POS);
lcd_send_data( (((LCD_HEIGHT-1)-y0) << 8) | ((LCD_HEIGHT-1)-y1));
lcd_send_cmd(R_VERT_RAM_ADDR_POS);
lcd_send_data( (((LCD_WIDTH -1)-x0) << 8) | ((LCD_WIDTH -1)-x1));
lcd_send_cmd(R_RAM_ADDR_SET);
lcd_send_data( (((LCD_WIDTH -1)-x0) << 8) | ((LCD_HEIGHT-1)-y0));
/* start drawing */
lcd_send_cmd(R_WRITE_DATA_2_GRAM);
addr = FBADDR(x0, y0)
int c, r;
for (r = 0; r < height; r++)
{
for (c = 0; c < width; c++)
lcd_send_data_swapped(*addr++);
addr += LCD_WIDTH - width;
}
}
/* 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);
}
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