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rockbox/firmware/target/coldfire/iaudio/x5/lcd-x5.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

541 lines
16 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 by Linus Nielsen Feltzing
*
* 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 "thread.h"
#include <string.h>
#include <stdlib.h>
#include "file.h"
#include "debug.h"
#include "system.h"
#include "font.h"
#include "bidi.h"
/* Power and display status */
static bool power_on = false; /* Is the power turned on? */
static bool display_on = false; /* Is the display turned on? */
/* Contrast */
static int lcd_contrast = DEFAULT_CONTRAST_SETTING << 8;
/* Reverse Flag */
#define R_DISP_CONTROL_NORMAL 0x0004
#define R_DISP_CONTROL_REV 0x0000
static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL;
/* Flipping */
#define Y_OFFSET_NORMAL 0
#define Y_OFFSET_FLIPPED 4
static int y_offset = 0; /* y correction for flip */
static unsigned short r_gate_scan_start_pos = 0x0002;
static unsigned short r_drv_output_control = 0x0313;
static unsigned short r_horiz_ram_addr_pos = 0x7f00;
/* A15(0x8000) && CS1->CS, A1(0x0002)->RS */
#define LCD_CMD *(volatile unsigned short *)0xf0008000
#define LCD_DATA *(volatile unsigned short *)0xf0008002
/* register defines for the Renesas HD66773R */
#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
#define R_ENTRY_MODE_SOLID_VERT 0x1038
#define R_ENTRY_MODE_DIT_HORZ 0x9030
/* called very frequently - inline! */
static inline void lcd_write_reg(int reg, int val)
{
LCD_CMD = 0x0000; /* MSB is ~always~ 0 */
LCD_CMD = reg << 1;
LCD_DATA = (val >> 8) << 1;
LCD_DATA = val << 1;
}
/* called very frequently - inline! */
static inline void lcd_begin_write_gram(void)
{
LCD_CMD = 0x0000;
LCD_CMD = R_WRITE_DATA_2_GRAM << 1;
}
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
return DEFAULT_CONTRAST_SETTING;
}
void lcd_set_contrast(int val)
{
/* Clamp val in range 0-14, 16-30 */
if (val < 1)
val = 0;
else if (val <= 15)
--val;
else if (val > 30)
val = 30;
lcd_contrast = val << 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)
{
r_disp_control_rev = yesno ? R_DISP_CONTROL_REV :
R_DISP_CONTROL_NORMAL;
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 | r_disp_control_rev);
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
if (yesno)
{
y_offset = Y_OFFSET_FLIPPED;
r_gate_scan_start_pos = 0x0000;
r_drv_output_control = 0x0013;
r_horiz_ram_addr_pos = 0x8304;
}
else
{
y_offset = Y_OFFSET_NORMAL;
r_gate_scan_start_pos = 0x0002;
r_drv_output_control = 0x0313;
r_horiz_ram_addr_pos = 0x7f00;
}
if (!power_on)
return;
/* SCN4-0=000x0 (G1/G160) */
lcd_write_reg(R_GATE_SCAN_START_POS, r_gate_scan_start_pos);
/* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160)*/
lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control);
/* HEA7-0=0xxx, HSA7-0=0xxx */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, r_horiz_ram_addr_pos);
}
static void lcd_power_on(void)
{
/* Be sure standby bit is clear. */
/* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */
lcd_write_reg(R_POWER_CONTROL1, 0x0000);
/** Power ON Sequence **/
/* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */
lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscillation */
/* 10ms or more for oscillation circuit to stabilize */
sleep(HZ/50);
/* Instruction (1) for power setting; VC2-0, VRH3-0, CAD,
VRL3-0, VCM4-0, VDV4-0 */
/* VC2-0=001 */
lcd_write_reg(R_POWER_CONTROL3, 0x0001);
/* VRL3-0=0100, PON=0, VRH3-0=0001 */
lcd_write_reg(R_POWER_CONTROL4, 0x0401);
/* CAD=1 */
lcd_write_reg(R_POWER_CONTROL2, 0x8000);
/* VCOMG=0, VDV4-0=xxxxx, VCM4-0=11000 */
lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast);
/* Instruction (2) for power setting; BT2-0, DC2-0, AP2-0 */
/* BT2-0=000, DC2-0=001, AP2-0=011, SLP=0, STB=0 */
lcd_write_reg(R_POWER_CONTROL1, 0x002c);
/* Instruction (3) for power setting; VCOMG = "1" */
/* VCOMG=1, VDV4-0=xxxxx, VCM4-0=11000 */
lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
/* 40ms or more; time for step-up circuits 1,2 to stabilize */
sleep(HZ/25);
/* Instruction (4) for power setting; PON = "1" */
/* VRL3-0=0100, PON=1, VRH3-0=0001 */
lcd_write_reg(R_POWER_CONTROL4, 0x0411);
/* 40ms or more; time for step-up circuit 4 to stabilize */
sleep(HZ/25);
/* Instructions for other mode settings (in register order). */
/* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160)*/
lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control);
/* FLD1-0=01 (1 field), B/C=1, EOR=1 (C-pat), NW5-0=000000 (1 row) */
lcd_write_reg(R_DRV_AC_CONTROL, 0x0700);
/* DIT=x, BGR=1, HWM=0, I/D1-0=11, AM=1, LG2-0=000 */
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT);
/* CP15-0=0000000000000000 */
lcd_write_reg(R_COMPARE_REG, 0x0000);
/* NO1-0=01, SDT1-0=00, EQ1-0=00, DIV1-0=00, RTN3-00000 */
lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x4000);
/* SCN4-0=000x0 (G1/G160) */
lcd_write_reg(R_GATE_SCAN_START_POS, r_gate_scan_start_pos);
/* VL7-0=0x00 */
lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
/* SE17-10(End)=0x9f (159), SS17-10(Start)=0x00 */
lcd_write_reg(R_1ST_SCR_DRV_POS, 0x9f00);
/* SE27-20(End)=0x5c (92), SS27-20(Start)=0x00 */
lcd_write_reg(R_2ND_SCR_DRV_POS, 0x5c00);
/* HEA7-0=0xxx, HSA7-0=0xxx */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, r_horiz_ram_addr_pos);
/* PKP12-10=0x0, PKP02-00=0x0 */
lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0003);
/* PKP32-30=0x4, PKP22-20=0x0 */
lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0400);
/* PKP52-50=0x4, PKP42-40=0x7 */
lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0407);
/* PRP12-10=0x3, PRP02-00=0x5 */
lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0305);
/* PKN12-10=0x0, PKN02-00=0x3 */
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0003);
/* PKN32-30=0x7, PKN22-20=0x4 */
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0704);
/* PKN52-50=0x4, PRN42-40=0x7 */
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0407);
/* PRN12-10=0x5, PRN02-00=0x3 */
lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0503);
/* VRP14-10=0x14, VRP03-00=0x09 */
lcd_write_reg(R_GAMMA_AMP_ADJ_POS, 0x1409);
/* VRN14-00=0x06, VRN03-00=0x02 */
lcd_write_reg(R_GAMMA_AMP_ADJ_NEG, 0x0602);
/* 100ms or more; time for step-up circuits to stabilize */
sleep(HZ/10);
power_on = true;
}
static void lcd_display_on(void)
{
/* Be sure power is on first */
if (!power_on)
lcd_power_on();
/** Display ON Sequence **/
/* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=01 */
lcd_write_reg(R_DISP_CONTROL, 0x0001);
sleep(HZ/25); /* Wait 2 frames or more */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=01 */
lcd_write_reg(R_DISP_CONTROL, 0x0021 | r_disp_control_rev);
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=11 */
lcd_write_reg(R_DISP_CONTROL, 0x0023 | r_disp_control_rev);
sleep(HZ/25); /* Wait 2 frames or more */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */
lcd_write_reg(R_DISP_CONTROL, 0x0033 | r_disp_control_rev);
display_on = true;
}
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
static void lcd_display_off(void)
{
display_on = false;
/** Display OFF sequence **/
/* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */
/* EQ1-0=00 already */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=10 */
lcd_write_reg(R_DISP_CONTROL, 0x0032 | r_disp_control_rev);
sleep(HZ/25); /* Wait 2 frames or more */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=10 */
lcd_write_reg(R_DISP_CONTROL, 0x0022 | r_disp_control_rev);
sleep(HZ/25); /* Wait 2 frames or more */
/* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=00 */
lcd_write_reg(R_DISP_CONTROL, 0x0000);
}
#endif
#if defined(HAVE_LCD_SLEEP)
static void lcd_power_off(void)
{
/* Display must be off first */
if (display_on)
lcd_display_off();
power_on = false;
/** Power OFF sequence **/
/* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */
/* Step-up1 halt setting bit */
/* BT2-0=110, DC2-0=001, AP2-0=011, SLP=0, STB=0 */
lcd_write_reg(R_POWER_CONTROL1, 0x062c);
/* Step-up3,4 halt setting bit */
/* VRL3-0=0100, PON=0, VRH3-0=0001 */
lcd_write_reg(R_POWER_CONTROL4, 0x0401);
/* VCOMG=0, VDV4-0=xxxxx, VCM4-0=11000 */
lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast);
/* Wait 100ms or more */
sleep(HZ/10);
/* Step-up2,amp halt setting bit */
/* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */
lcd_write_reg(R_POWER_CONTROL1, 0x0000);
}
void lcd_sleep(void)
{
if (power_on)
lcd_power_off();
/* Set standby mode */
/* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=1 */
lcd_write_reg(R_POWER_CONTROL1, 0x0001);
}
#endif
/* LCD init */
void lcd_init_device(void)
{
#ifdef BOOTLOADER
/* Initial boot requires power on reset and setting up chip
registers but a full reset is not needed again. */
/* LCD Reset */
and_l(~0x00000010, &GPIO1_OUT);
or_l(0x00000010, &GPIO1_ENABLE);
or_l(0x00000010, &GPIO1_FUNCTION);
sleep(HZ/100);
or_l(0x00000010, &GPIO1_OUT);
sleep(HZ/100);
lcd_display_on();
#else
/* Power and display already ON - reset settings */
power_on = true;
display_on = true;
lcd_set_contrast(DEFAULT_CONTRAST_SETTING);
lcd_set_invert_display(false);
lcd_set_flip(false);
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT);
/* do this or all bootloaders will need reflashing */
#endif
}
#if defined(HAVE_LCD_ENABLE)
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 ***/
/* 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 width);
/* Performance function to blit a YUV bitmap directly to the LCD
* src_x, src_y, width and height should be even and within the LCD's
* boundaries.
*/
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)
{
/* IRAM Y, Cb/bu, guv and Cb/rv 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_DIT_HORZ);
/* Set start position and window */
lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
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;
unsigned long macsr = coldfire_get_macsr();
coldfire_set_macsr(EMAC_SATURATE);
do
{
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((y + y_offset + 1) << 8) | (y + y_offset));
lcd_write_reg(R_RAM_ADDR_SET, (x << 8) | (y + y_offset));
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);
coldfire_set_macsr(macsr);
} /* lcd_yuv_blit */
/* Update the display.
This must be called after all other LCD functions that change the
lcd frame buffer. */
void lcd_update(void)
{
if (!display_on)
return;
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT);
/* Set start position and window */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,
((y_offset + LCD_HEIGHT-1) << 8) | y_offset);
lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
lcd_write_reg(R_RAM_ADDR_SET, y_offset);
lcd_begin_write_gram();
lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
} /* lcd_update */
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
{
int ymax;
const unsigned short *ptr;
if (!display_on)
return;
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
width += x, x = 0; /* Clip left */
if (width <= 0)
return; /* nothing left to do */
ymax = y + height;
if (ymax > LCD_HEIGHT)
ymax = LCD_HEIGHT; /* Clip bottom */
if (y < 0)
y = 0; /* Clip top */
if (y >= ymax)
return; /* nothing left to do */
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT);
/* Set start position and window */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,
((y_offset + LCD_HEIGHT-1) << 8) | y_offset);
lcd_write_reg(R_VERT_RAM_ADDR_POS, ((x + width - 1) << 8) | x);
lcd_write_reg(R_RAM_ADDR_SET, (x << 8) | (y + y_offset));
lcd_begin_write_gram();
ptr = (unsigned short *)FBADDR(x,y);
do
{
lcd_write_data(ptr, width);
ptr += LCD_WIDTH;
}
while (++y < ymax);
} /* lcd_update_rect */
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