213 lines
7 KiB
C
213 lines
7 KiB
C
/***************************************************************************
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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) 2007 by Jens Arnold
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* Based on the work of Alan Korr, Kjell Ericson and others
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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 <string.h>
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#include "config.h"
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#include "system.h"
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#include "kernel.h"
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#include "hwcompat.h"
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#include "lcd.h"
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#include "lcd-charcell.h"
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#define OLD_LCD_DDRAM ((char)0xB0) /* Display data (characters) */
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#define OLD_LCD_CGRAM ((char)0x80) /* Character generator (patterns) */
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#define OLD_LCD_ICONRAM ((char)0xE0)
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#define OLD_LCD_CONTRAST_SET ((char)0xA8)
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#define OLD_LCD_NOP ((char)0x00)
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#define OLD_LCD_SYSTEM_SET ((char)0x60)
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#define OLD_LCD_SET_POWER_SAVE_OSC_CONTROL ((char)0x40)
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#define OLD_LCD_SET_POWER_CONTROL ((char)0x50)
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#define OLD_LCD_SET_DISPLAY_CONTROL ((char)0x30)
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#define NEW_LCD_DDRAM ((char)0x80) /* Display data (characters) */
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#define NEW_LCD_CGRAM ((char)0xC0) /* Character generator (patterns) */
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#define NEW_LCD_ICONRAM ((char)0x40)
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#define NEW_LCD_CONTRAST_SET ((char)0x50)
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#define NEW_LCD_NOP ((char)0x00)
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#define NEW_LCD_FUNCTION_SET ((char)0x10)
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#define NEW_LCD_SET_POWER_SAVE_OSC_CONTROL ((char)0x0c)
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#define NEW_LCD_SET_POWER_CONTROL_REG ((char)0x20)
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#define NEW_LCD_SET_DISPLAY_CONTROL ((char)0x28)
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#define NEW_LCD_SET_DOUBLE_HEIGHT ((char)0x08)
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#define LCD_CURSOR(x,y) ((char)(lcd_ddram+((y)*16+(x))))
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#define LCD_ICON(i) ((char)(lcd_iconram+i))
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static bool new_lcd;
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static char lcd_contrast_set;
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static char lcd_ddram;
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static char lcd_cgram;
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static char lcd_iconram;
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/* hardware configuration */
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int lcd_default_contrast(void)
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{
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return 30;
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}
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void lcd_set_contrast(int val)
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{
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lcd_write_command_e(lcd_contrast_set, 31 - val);
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}
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/* charcell specific */
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void lcd_double_height(bool on)
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{
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if(new_lcd)
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lcd_write_command(on ? (NEW_LCD_SET_DOUBLE_HEIGHT|1)
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: NEW_LCD_SET_DOUBLE_HEIGHT);
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}
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void lcd_icon(int icon, bool enable)
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{
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static const struct {
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char pos;
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char mask;
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} icontab[] = {
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{ 0, 0x02}, { 0, 0x08}, { 0, 0x04}, { 0, 0x10}, /* Battery */
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{ 2, 0x04}, /* USB */
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{ 3, 0x10}, /* Play */
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{ 4, 0x10}, /* Record */
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{ 5, 0x02}, /* Pause */
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{ 5, 0x10}, /* Audio */
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{ 6, 0x02}, /* Repeat */
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{ 7, 0x01}, /* 1 */
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{ 9, 0x04}, /* Volume */
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{ 9, 0x02}, { 9, 0x01}, {10, 0x08}, {10, 0x04}, {10, 0x01}, /* Vol 1-5 */
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{10, 0x10}, /* Param */
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};
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static char icon_mirror[11] = {0};
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int pos, mask;
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pos = icontab[icon].pos;
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mask = icontab[icon].mask;
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if (enable)
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icon_mirror[pos] |= mask;
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else
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icon_mirror[pos] &= ~mask;
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lcd_write_command_e(LCD_ICON(pos), icon_mirror[pos]);
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}
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/* device specific init */
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void lcd_init_device(void)
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{
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unsigned char data_vector[64];
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/* LCD init for cold start */
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PBCR2 &= 0xff00; /* Set PB0..PB3 to GPIO */
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or_b(0x0f, &PBDRL); /* ... high */
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or_b(0x0f, &PBIORL); /* ... and output */
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new_lcd = is_new_player();
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if (new_lcd)
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{
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lcd_contrast_set = NEW_LCD_CONTRAST_SET;
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lcd_ddram = NEW_LCD_DDRAM;
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lcd_cgram = NEW_LCD_CGRAM;
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lcd_iconram = NEW_LCD_ICONRAM;
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lcd_write_command(NEW_LCD_FUNCTION_SET|1); /* CGRAM selected */
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lcd_write_command_e(NEW_LCD_CONTRAST_SET, 0x08);
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lcd_write_command(NEW_LCD_SET_POWER_SAVE_OSC_CONTROL|2);
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/* oscillator on */
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lcd_write_command(NEW_LCD_SET_POWER_CONTROL_REG|7);
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/* opamp buffer + voltage booster on */
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memset(data_vector, 0x20, 64);
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lcd_write_command(NEW_LCD_DDRAM); /* Set DDRAM address */
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lcd_write_data(data_vector, 64); /* all spaces */
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memset(data_vector, 0, 64);
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lcd_write_command(NEW_LCD_CGRAM); /* Set CGRAM address */
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lcd_write_data(data_vector, 64); /* zero out */
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lcd_write_command(NEW_LCD_ICONRAM); /* Set ICONRAM address */
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lcd_write_data(data_vector, 16); /* zero out */
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lcd_write_command(NEW_LCD_SET_DISPLAY_CONTROL|1); /* display on */
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}
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else
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{
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lcd_contrast_set = OLD_LCD_CONTRAST_SET;
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lcd_ddram = OLD_LCD_DDRAM;
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lcd_cgram = OLD_LCD_CGRAM;
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lcd_iconram = OLD_LCD_ICONRAM;
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lcd_write_command(OLD_LCD_NOP);
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lcd_write_command(OLD_LCD_SYSTEM_SET|1); /* CGRAM selected */
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lcd_write_command(OLD_LCD_SET_POWER_SAVE_OSC_CONTROL|2);
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/* oscillator on */
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lcd_write_command(OLD_LCD_SET_POWER_CONTROL|7);
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/* voltage regulator, voltage follower and booster on */
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memset(data_vector, 0x24, 13);
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lcd_write_command(OLD_LCD_DDRAM); /* Set DDRAM address */
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lcd_write_data(data_vector, 13); /* all spaces */
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lcd_write_command(OLD_LCD_DDRAM + 0x10);
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lcd_write_data(data_vector, 13);
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lcd_write_command(OLD_LCD_DDRAM + 0x20);
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lcd_write_data(data_vector, 13);
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memset(data_vector, 0, 32);
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lcd_write_command(OLD_LCD_CGRAM); /* Set CGRAM address */
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lcd_write_data(data_vector, 32); /* zero out */
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lcd_write_command(OLD_LCD_ICONRAM); /* Set ICONRAM address */
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lcd_write_data(data_vector, 13); /* zero out */
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lcd_write_command(OLD_LCD_ICONRAM + 0x10);
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lcd_write_data(data_vector, 13);
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sleep(HZ/10);
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lcd_write_command(OLD_LCD_SET_DISPLAY_CONTROL|1); /* display on */
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}
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lcd_set_contrast(lcd_default_contrast());
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}
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/*** Update functions ***/
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void lcd_update(void)
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{
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int y;
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for (y = 0; y < lcd_pattern_count; y++)
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{
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if (lcd_patterns[y].count > 0)
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{
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lcd_write_command(lcd_cgram | (y << 3));
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lcd_write_data(lcd_patterns[y].pattern, 7);
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}
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}
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for (y = 0; y < LCD_HEIGHT; y++)
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{
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lcd_write_command(LCD_CURSOR(0, y));
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lcd_write_data(lcd_charbuffer[y], LCD_WIDTH);
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}
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if (lcd_cursor.visible)
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{
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lcd_write_command_e(LCD_CURSOR(lcd_cursor.x, lcd_cursor.y),
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lcd_cursor.hw_char);
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}
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}
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