153 lines
4 KiB
C
153 lines
4 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (c) 2013 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <sys/types.h> /* off_t */
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#include <string.h>
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#include "cpu.h"
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#include "system.h"
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#include "backlight-target.h"
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#include "lcd.h"
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#include "lcdif-imx233.h"
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#include "clkctrl-imx233.h"
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#include "pinctrl-imx233.h"
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#include "dcp-imx233.h"
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#include "logf.h"
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#ifndef BOOTLOADER
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#include "button.h"
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#include "font.h"
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#include "action.h"
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#endif
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#ifdef HAVE_LCD_ENABLE
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static bool lcd_on;
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#endif
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static void lcd_write_reg(uint16_t reg, uint16_t value)
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{
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imx233_lcdif_set_data_swizzle(3);
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imx233_lcdif_pio_send(false, 2, ®);
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if(reg != 0x22)
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imx233_lcdif_pio_send(true, 2, &value);
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}
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void lcd_init_device(void)
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{
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/* clock at 24MHZ */
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imx233_clkctrl_enable(CLK_PIX, false);
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imx233_clkctrl_set_div(CLK_PIX, 3);
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imx233_clkctrl_set_bypass(CLK_PIX, true); /* use XTAL */
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imx233_clkctrl_enable(CLK_PIX, true);
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imx233_lcdif_init();
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imx233_lcdif_setup_system_pins(8);
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imx233_lcdif_set_timings(2, 2, 2, 2);
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imx233_lcdif_set_word_length(8);
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lcd_write_reg(0, 1);
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lcd_write_reg(3, 0);
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lcd_write_reg(3, 0x510);
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lcd_write_reg(9, 8);
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lcd_write_reg(0xc, 0);
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lcd_write_reg(0xd, 0);
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lcd_write_reg(0xe, 0);
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lcd_write_reg(0x5b, 4);
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lcd_write_reg(0xd, 0x10);
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lcd_write_reg(9, 0);
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lcd_write_reg(3, 0x10);
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lcd_write_reg(0xd, 0x14);
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lcd_write_reg(0xe, 0x2b12);
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lcd_write_reg(1, 0x21f);
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lcd_write_reg(2, 0x700);
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lcd_write_reg(5, 0x30);
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lcd_write_reg(6, 0);
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lcd_write_reg(8, 0x202);
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lcd_write_reg(0xa, 0x3); // OF uses 0xc0003 with 3 transfers/pixels
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lcd_write_reg(0xb, 0);
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lcd_write_reg(0xf, 0);
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lcd_write_reg(0x10, 0);
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lcd_write_reg(0x11, 0);
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lcd_write_reg(0x14, 0x9f00);
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lcd_write_reg(0x15, 0x9f00);
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lcd_write_reg(0x16, 0x7f00);
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lcd_write_reg(0x17, 0x9f00);
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lcd_write_reg(0x20, 0);
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lcd_write_reg(0x21, 0);
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lcd_write_reg(0x23, 0);
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lcd_write_reg(0x24, 0);
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lcd_write_reg(0x25, 0);
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lcd_write_reg(0x26, 0);
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lcd_write_reg(0x30, 0x707);
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lcd_write_reg(0x31, 0x504);
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lcd_write_reg(0x32, 7);
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lcd_write_reg(0x33, 0x307);
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lcd_write_reg(0x34, 7);
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lcd_write_reg(0x35, 0x400);
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lcd_write_reg(0x36, 0x607);
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lcd_write_reg(0x37, 0x703);
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lcd_write_reg(0x3a, 0x1a0d);
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lcd_write_reg(0x3b, 0x1309);
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lcd_write_reg(9, 4);
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lcd_write_reg(7, 5);
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lcd_write_reg(7, 0x25);
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lcd_write_reg(7, 0x27);
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lcd_write_reg(0x5b, 0);
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lcd_write_reg(7, 0x37);
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#ifdef HAVE_LCD_ENABLE
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lcd_on = true;
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#endif
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}
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#ifdef HAVE_LCD_ENABLE
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bool lcd_active(void)
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{
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return lcd_on;
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}
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void lcd_enable(bool enable)
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{
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if(lcd_on == enable)
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return;
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lcd_on = enable;
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}
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#endif
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void lcd_update(void)
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{
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lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
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}
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void lcd_update_rect(int x, int y, int w, int h)
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{
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#ifdef HAVE_LCD_ENABLE
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if(!lcd_on)
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return;
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#endif
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imx233_lcdif_wait_ready();
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lcd_write_reg(0x16, x | (x + w - 1) << 8);
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lcd_write_reg(0x17, y | (y + h - 1) << 8);
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lcd_write_reg(0x21, y * LCD_WIDTH + x);
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lcd_write_reg(0x22, 0);
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for(int yy = y; yy < y + h; yy++)
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imx233_lcdif_pio_send(true, 2 * w, FBADDR(x, yy));
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}
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