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rockbox/firmware/target/arm/philips/hdd1630/lcd-hdd1630.c
Szymon Dziok 518d9ecb35 HDD1630: implement lcd_enable (display on/off). 
Change-Id: I8b72a9c333d8a9dbcb62c366a9af298f1dd9b2f7
2014-01-13 23:50:40 +01:00

434 lines
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C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Mark Arigo
*
* 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 <sys/types.h>
#include "config.h"
#include "cpu.h"
#include "lcd.h"
#include "kernel.h"
#include "system.h"
/* The LCD registers appear to match controllers from Leadis Technology,
either the LDS176 (132x132 4k) or the LDS186 (128x160 65k).
These defines are from the LDS176 (I couldn't find the LDS186 datasheet. */
#define NOP 0x00
#define SWRESET 0x01
#define BSTROFF 0x02
#define BSTRON 0x03
#define RDDID 0x04
#define RDDST 0x09
#define SLPIN 0x10
#define SLPOUT 0x11
#define PTLON 0x12
#define NORON 0x13
#define INVOFF 0x20
#define INVON 0x21
#define APOFF 0x22
#define APON 0x23
#define WRCNTR 0x25
#define DISPOFF 0x28
#define DISPON 0x29
#define CASET 0x2a
#define RASET 0x2b
#define RAMWR 0x2c
#define RAMRD 0x2e
#define RGBSET 0x2d
#define PTLAR 0x30
#define SCRLAR 0x33
#define TEOFF 0x34
#define TEON 0x35
#define MADCTR 0x36
#define VSCSAD 0x37
#define IDMOFF 0x38
#define IDMON 0x39
#define COLMOD 0x3a
#define RDID1 0xda
#define RDID2 0xdb
#define RDID3 0xdc
#define CLKINT 0xb0
#define CLKEXT 0xb1
#define FRMSEL 0xb4
#define FRM8SEL 0xb5
#define TMPRNG 0xb6
#define TMPHIS 0xb7
#define TMPREAD 0xb8
#define DISCTR 0xba
#define EPVOL 0xbb
#define EPWRIN 0xd1
#define EPWROUT 0xd0
#define RDEV 0xd4
#define RDRR 0xd5
/* Whether the lcd is currently enabled or not */
static bool lcd_enabled;
/* Display status */
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
static unsigned mad_ctrl = 0;
/* wait for LCD */
static inline void lcd_wait_write(void)
{
int i = 0;
while (LCD2_PORT & LCD2_BUSY_MASK)
{
if (i < 2000)
i++;
else
LCD2_PORT &= ~LCD2_BUSY_MASK;
}
}
/* send LCD data */
static void lcd_send_data(unsigned data)
{
lcd_wait_write();
LCD2_PORT = LCD2_DATA_MASK | (data & 0xff);
}
/* send LCD command */
static void lcd_send_cmd(unsigned cmd)
{
lcd_wait_write();
LCD2_PORT = LCD2_CMD_MASK | (cmd & 0xff);
lcd_wait_write();
}
static inline void lcd_send_pixel(unsigned pixel)
{
lcd_send_data(pixel >> 8);
lcd_send_data(pixel);
}
void lcd_init_device(void)
{
#if 0
/* this sequence from the OF bootloader */
DEV_EN2 |= 0x2000;
outl(inl(0x70000014) & ~0xf000000, 0x70000014);
outl(inl(0x70000014) | 0xa000000, 0x70000014);
DEV_INIT1 &= 0xc000;
DEV_INIT1 |= 0x8000;
MLCD_SCLK_DIV &= ~0x800;
CLCD_CLOCK_SRC |= 0xc0000000;
DEV_INIT2 &= ~0x400;
outl(inl(0x7000002c) | ((1<<4)<<24), 0x7000002c);
DEV_INIT2 &= ~((1<<4)<<24);
udelay(10000);
DEV_INIT2 |= ((1<<4)<<24);
outl(0x220, 0x70008a00);
outl(0x1f00, 0x70008a04);
LCD2_BLOCK_CTRL = 0x10008080;
LCD2_BLOCK_CONFIG = 0xF00000;
/* lcd power */
GPIOJ_ENABLE |= 0x4;
GPIOJ_OUTPUT_VAL |= 0x4;
GPIOJ_OUTPUT_EN |= 0x4;
lcd_send_cmd(SWRESET);
udelay(10000);
lcd_send_cmd(WRCNTR);
lcd_send_data(0x3f);
lcd_send_cmd(SLPOUT);
udelay(120000);
lcd_send_cmd(INVOFF);
lcd_send_cmd(IDMOFF);
lcd_send_cmd(NORON);
lcd_send_cmd(FRMSEL);
lcd_send_data(0x2);
lcd_send_data(0x6);
lcd_send_data(0x8);
lcd_send_data(0xd);
lcd_send_cmd(FRM8SEL);
lcd_send_data(0x2);
lcd_send_data(0x6);
lcd_send_data(0x8);
lcd_send_data(0xd);
lcd_send_cmd(TMPRNG);
lcd_send_data(0x19);
lcd_send_data(0x23);
lcd_send_data(0x2d);
lcd_send_cmd(TMPHIS);
lcd_send_data(0x5);
lcd_send_cmd(DISCTR);
lcd_send_data(0x7);
lcd_send_data(0x18);
lcd_send_cmd(MADCTR);
lcd_send_data(0);
mad_ctrl = 0;
lcd_send_cmd(COLMOD);
lcd_send_data(0x5);
lcd_send_cmd(RGBSET);
lcd_send_data(0x1);
lcd_send_data(0x2);
lcd_send_data(0x3);
lcd_send_data(0x4);
lcd_send_data(0x5);
lcd_send_data(0x6);
lcd_send_data(0x7);
lcd_send_data(0x8);
lcd_send_data(0x9);
lcd_send_data(0xa);
lcd_send_data(0xb);
lcd_send_data(0xc);
lcd_send_data(0xd);
lcd_send_data(0xe);
lcd_send_data(0xf);
lcd_send_data(0x10);
lcd_send_data(0x11);
lcd_send_data(0x12);
lcd_send_data(0x13);
lcd_send_data(0x14);
lcd_send_data(0x15);
lcd_send_data(0x16);
lcd_send_data(0x17);
lcd_send_data(0x18);
lcd_send_data(0x19);
lcd_send_data(0x1a);
lcd_send_data(0x1b);
lcd_send_data(0x1c);
lcd_send_data(0x1d);
lcd_send_data(0x1e);
lcd_send_data(0x1f);
lcd_send_data(0x20);
lcd_send_data(0x21);
lcd_send_data(0x22);
lcd_send_data(0x23);
lcd_send_data(0x24);
lcd_send_data(0x25);
lcd_send_data(0x26);
lcd_send_data(0x27);
lcd_send_data(0x28);
lcd_send_data(0x29);
lcd_send_data(0x2a);
lcd_send_data(0x2b);
lcd_send_data(0x2c);
lcd_send_data(0x2d);
lcd_send_data(0x2e);
lcd_send_data(0x2f);
lcd_send_data(0x30);
lcd_send_cmd(DISPON);
#endif
lcd_enabled = true;
}
#ifdef HAVE_LCD_ENABLE
/* enable / disable lcd */
void lcd_enable(bool on)
{
if (on == lcd_enabled)
return;
if (on) /* lcd_display_on() */
{
/* from the OF */
lcd_send_cmd(SLPOUT);
sleep(HZ/5); /* 200ms */
/* 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);
lcd_enabled = true;
}
else /* lcd_display_off() */
{
/* from the OF */
lcd_send_cmd(SLPIN);
lcd_enabled = false;
}
}
bool lcd_active(void)
{
return lcd_enabled;
}
#endif /* HAVE_LCD_ENABLE */
/*** hardware configuration ***/
int lcd_default_contrast(void)
{
return DEFAULT_CONTRAST_SETTING;
}
void lcd_set_contrast(int val)
{
lcd_send_cmd(WRCNTR);
lcd_send_data(val);
}
void lcd_set_invert_display(bool yesno)
{
if (yesno)
lcd_send_cmd(INVON);
else
lcd_send_cmd(INVOFF);
}
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
if (yesno)
mad_ctrl |= ((1<<7) | (1<<6)); /* flip */
else
mad_ctrl &= ~((1<<7) | (1<<6)); /* normal */
lcd_send_cmd(MADCTR);
lcd_send_data(mad_ctrl);
}
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, 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)
{
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]);
/* Set vertical address mode */
lcd_send_cmd(MADCTR);
lcd_send_data(mad_ctrl | (1<<5));
lcd_send_cmd(RASET);
lcd_send_data(x);
lcd_send_data(x + width - 1);
if (lcd_yuv_options & LCD_YUV_DITHER)
{
do
{
lcd_send_cmd(CASET);
lcd_send_data(y);
lcd_send_data(y + 1);
lcd_send_cmd(RAMWR);
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_send_cmd(CASET);
lcd_send_data(y);
lcd_send_data(y + 1);
lcd_send_cmd(RAMWR);
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);
}
/* Restore the address mode */
lcd_send_cmd(MADCTR);
lcd_send_data(mad_ctrl);
}
/* 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 x, int y, int width, int height)
{
const fb_data *addr;
if (x + width >= LCD_WIDTH)
width = LCD_WIDTH - x;
if (y + height >= LCD_HEIGHT)
height = LCD_HEIGHT - y;
if ((width <= 0) || (height <= 0))
return; /* Nothing left to do. */
addr = FBADDR(x,y);
lcd_send_cmd(CASET);
lcd_send_data(x);
lcd_send_data(x + width - 1);
lcd_send_cmd(RASET);
lcd_send_data(y);
lcd_send_data(y + height - 1);
lcd_send_cmd(RAMWR);
do {
int w = width;
do {
lcd_send_pixel(*addr++);
} while (--w > 0);
addr += LCD_WIDTH - width;
} while (--height > 0);
}
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