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