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rockbox/firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c
Lorenzo Miori 1deab73980 Initial commit for the YP-Z5 port 
The port uses the imx233 soc, it's a STMP3650 based Samsung player

Change-Id: I50b6d7e77fd292fab5ed26de87853cd5aaf9eaa4
Reviewed-on: http://gerrit.rockbox.org/490
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
2013-12-02 20:48:21 +01:00

294 lines
8.9 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (c) 2013 by Lorenzo Miori
*
* 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> /* off_t */
#include <string.h>
#include "cpu.h"
#include "system.h"
#include "backlight-target.h"
#include "lcd.h"
#include "lcdif-imx233.h"
#include "clkctrl-imx233.h"
#include "pinctrl-imx233.h"
#include "dcp-imx233.h"
#include "logf.h"
#ifndef BOOTLOADER
#include "button.h"
#include "font.h"
#include "action.h"
#endif
#include "dma-imx233.h"
#include "regs/regs-lcdif.h"
/**
* NOTE
* We don't know exact LCD models nor we have datasheets for them
* Register function are partly guessed from the values, others are guessed from other LCD
* drivers and others have been confirmed studying their values
*/
static enum lcd_type_t
{
LCD_TYPE_ZERO = 0,
LCD_TYPE_ONE = 1
} lcd_type = LCD_TYPE_ZERO;
static void lcd_write_reg(uint16_t reg, uint16_t data)
{
imx233_lcdif_pio_send(false, 1, &reg);
if(reg != 0x22)
imx233_lcdif_pio_send(true, 1, &data);
}
/*
* The two LCD types require different initialization sequences
*/
void lcd_init_seq(void)
{
switch (lcd_type)
{
case LCD_TYPE_ZERO:
{
lcd_write_reg(0x11, 0x1f1e);
lcd_write_reg(0x38, 0xf0f);
lcd_write_reg(0x12, 0x1101);
lcd_write_reg(0x13, 0x808);
lcd_write_reg(0x14, 0x3119);
lcd_write_reg(0x10, 0x1a10);
udelay(0xc350);
lcd_write_reg(0x13, 0x83b);
udelay(0x30d40);
lcd_write_reg(1, 0x90c); /* Display mode */
lcd_write_reg(2, 0x200);
lcd_write_reg(3, 0x1030);
lcd_write_reg(7, 5);
lcd_write_reg(8, 0x503);
lcd_write_reg(11, 0);
lcd_write_reg(12, 0);
/* Gamma control */
lcd_write_reg(0x30, 0x606);
lcd_write_reg(0x31, 0x606);
lcd_write_reg(0x32, 0x305);
lcd_write_reg(0x33, 2);
lcd_write_reg(0x34, 0x503);
lcd_write_reg(0x35, 0x606);
lcd_write_reg(0x36, 0x606);
lcd_write_reg(0x37, 0x200);
lcd_write_reg(0x11, 0x1f1e);
lcd_write_reg(0x38, 0xf0f);
/* Set initial LCD limits and RAM settings */
lcd_write_reg(0x40, 0); //BPP ?
lcd_write_reg(0x42, 0x9f00);
lcd_write_reg(0x43, 0);
lcd_write_reg(0x44, 0x7f00); /* Horizontal initial refresh zone [0 - 127] */
lcd_write_reg(0x45, 0x9f00); /* Vertical initial refresh zone [0 - 159] */
lcd_write_reg(14, 0x13);
lcd_write_reg(0xa9, 0x14);
lcd_write_reg(0xa7, 0x30);
lcd_write_reg(0xa8, 0x124);
lcd_write_reg(0x6f, 0x1d00);
lcd_write_reg(0x70, 3);
lcd_write_reg(7, 1);
lcd_write_reg(0x10, 0x1a10);
udelay(0x9c40);
lcd_write_reg(7, 0x21);
lcd_write_reg(7, 0x23);
udelay(0x9c40);
lcd_write_reg(7, 0x37); /* Seems to be "power on" */
break;
}
case LCD_TYPE_ONE:
{
lcd_write_reg(0, 1);
udelay(0x2710);
lcd_write_reg(0x11, 0x171b);
lcd_write_reg(0x12, 0);
lcd_write_reg(0x13, 0x80d);
lcd_write_reg(0x14, 0x18);
lcd_write_reg(0x10, 0x1a10);
udelay(0xc350);
lcd_write_reg(0x13, 0x81d);
udelay(0xc350);
lcd_write_reg(1, 0x90c); /* Display mode */
lcd_write_reg(2, 0x200);
lcd_write_reg(3, 0x1030);
lcd_write_reg(7, 5);
lcd_write_reg(8, 0x30a);
lcd_write_reg(11, 4);
lcd_write_reg(12, 0);
/* Gamma control */
lcd_write_reg(0x30, 0x300);
lcd_write_reg(0x31, 0);
lcd_write_reg(0x32, 0);
lcd_write_reg(0x33, 0x404);
lcd_write_reg(0x34, 0x707);
lcd_write_reg(0x35, 0x700);
lcd_write_reg(0x36, 0x703);
lcd_write_reg(0x37, 4);
lcd_write_reg(0x38, 0);
/* Set initial LCD limits and RAM settings */
lcd_write_reg(0x40, 0);
lcd_write_reg(0x42, 0x9f00); /* LCD Display Start Address Register 0 */
lcd_write_reg(0x43, 0); /* LCD Display Start Address Register 1 */
lcd_write_reg(0x44, 0x7f00); /* Horizontal initial refresh zone [0 - 127] */
lcd_write_reg(0x45, 0x9f00); /* Vertical initial refresh zone [0 - 159] */
lcd_write_reg(7, 1);
udelay(0x2710);
lcd_write_reg(7, 0x21);
lcd_write_reg(7, 0x23);
udelay(0x2710);
lcd_write_reg(7, 0x1037);
udelay(0x2710);
lcd_write_reg(7, 0x35);
lcd_write_reg(7, 0x36);
lcd_write_reg(7, 0x37);
udelay(10000);
break;
}
default:
break;
}
}
static void send_update_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h)
{
/* Set horizontal refresh zone */
lcd_write_reg(0x44, (x | (y + w - 1) << 0x8));
/* Set vertical refresh zone */
lcd_write_reg(0x45, (y | (y + h - 1) << 0x8));
lcd_write_reg(0x21, x | y << 8);
/* Set register index to 0x22 to write screen data. 0 is mock value */
lcd_write_reg(0x22, 0);
}
static void setup_lcd_pins(void)
{
imx233_lcdif_setup_system_pins(16);
/* lcd_rd */
imx233_pinctrl_acquire(0, 9, "lcd rd");
imx233_pinctrl_set_function(0, 9, PINCTRL_FUNCTION_GPIO);
imx233_pinctrl_set_gpio(0, 9, false);
/*
* This pin is important to know the LCD type
* There are two types that require two different initialization sequences
*/
/* lcd_tp */
imx233_pinctrl_acquire(3, 12, "lcd type");
imx233_pinctrl_set_function(3, 12, PINCTRL_FUNCTION_GPIO);
imx233_pinctrl_enable_gpio(3, 12, false);
/* Sense LCD Type */
lcd_type = imx233_pinctrl_get_gpio(3, 12) ? LCD_TYPE_ONE : LCD_TYPE_ZERO;
}
static void setup_parameters(void)
{
imx233_lcdif_init();
imx233_lcdif_enable(true);
imx233_lcdif_set_word_length(16);
imx233_lcdif_set_data_swizzle(false);
imx233_lcdif_set_timings(2, 1, 1, 1);
BF_WR_V(LCDIF_CTRL, MODE86, 8080_MODE);
imx233_lcdif_reset_lcd(true);
udelay(50);
imx233_lcdif_reset_lcd(false);
udelay(10);
imx233_lcdif_reset_lcd(true);
}
void lcd_init_device(void)
{
/* Setup interface pins */
setup_lcd_pins();
/* Set LCD parameters */
setup_parameters();
/* Send initialization sequence to LCD */
lcd_init_seq();
}
struct lcdif_cmd_t
{
struct apb_dma_command_t dma;
uint32_t ctrl0;
uint32_t pad[4];
} __attribute__((packed)) CACHEALIGN_ATTR;
struct lcdif_cmd_t lcdif_dma;
void lcd_update(void)
{
unsigned size = LCD_WIDTH * LCD_HEIGHT * sizeof(fb_data);
send_update_rect(0,0,LCD_WIDTH,LCD_HEIGHT);
/* We can safely do the transfer in a single shot, since 160 * 128 * 2 < 65k,
* the maximum transfer size!
*/
lcdif_dma.dma.cmd |= BF_OR3(APB_CHx_CMD, CMDWORDS(1), XFER_COUNT(size), COMMAND(2));
lcdif_dma.ctrl0 = HW_LCDIF_CTRL & ~BM_LCDIF_CTRL_COUNT;
lcdif_dma.ctrl0 |= BF_OR2(LCDIF_CTRL, COUNT(size/2), DATA_SELECT(1));
lcdif_dma.dma.buffer = FBADDR(0,0);
lcdif_dma.dma.cmd |= BM_APB_CHx_CMD_SEMAPHORE;
imx233_dma_start_command(APB_LCDIF, &lcdif_dma.dma);
imx233_dma_wait_completion(APB_LCDIF, HZ);
}
void lcd_update_rect(int x, int y, int w, int h)
{
(void)x;
(void)y;
(void)w;
(void)h;
lcd_update();
}
#ifndef BOOTLOADER
bool lcd_debug_screen(void)
{
lcd_setfont(FONT_SYSFIXED);
while(1)
{
int button = get_action(CONTEXT_STD, HZ / 10);
switch(button)
{
case ACTION_STD_NEXT:
case ACTION_STD_PREV:
case ACTION_STD_OK:
case ACTION_STD_MENU:
lcd_setfont(FONT_UI);
return true;
case ACTION_STD_CANCEL:
lcd_setfont(FONT_UI);
return false;
}
lcd_clear_display();
lcd_putsf(0, 0, "LCD type: %d", lcd_type);
lcd_update();
yield();
}
return true;
}
#endif
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