yampp7_usb.h

DIY自己的MP3的参考价值极高的代码。含有详细的解释

/* ***********************************************************************
**
**  Copyright (C) 2002  Jesper Hansen <[e-mail]> and 
**			Romuald Bialy (MIS) <[e-mail]>.
**
**
**  Yampp-7/USB - main header file
**
**  File yampp7_usb.h
**
*************************************************************************
**
**   This file is part of the yampp system.
**
**  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 program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program; if not, write to the Free Software Foundation, 
**  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
**
*************************************************************************
**
**  Revision History
**
**  when         what  who	why
**
**  2002-04-13   0.9   Jesper   initial test release
**  2002-09-22   1.0   MIS	initial public release
**  2002-10-09   1.1   MIS	added Autolock status position in EEPROM
**  2002-11-03   1.2   MIS	redefinition type of events to u08
**  2003-01-01   1.3   MIS      added compatibility with new versions of GCC
**
*********************************************************************** */

#ifndef GCC_VERSION
 #define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif /* GCC_VERSION */

#if (GCC_VERSION < 3003)
 #error __Wrong compiler version. Use GCC 3.3 !___
#endif

#if defined (__AVR_ATmega162__)
 #define	GIMSK	GICR
#else
 #define	PORTE0	PE0
 #define 	PORTE1	PE1
 #define 	PORTE2	PE2
#endif

#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/eeprom.h>
#include <avr/signal.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <string.h>
#include <stdarg.h>

#include "types.h"
#include "Constants.h"
#include "yampp7lib.h"
#include "yadl.h"
#include "usb.h"

u08 *SectorBuffer;

int _p_printf(char const *fmt0, ...);
void _p_puts(char const *s);
#define printf(format, args...)   _p_printf(PSTR(format) , ## args)
#define puts(str)   		_p_puts(PSTR(str))

u08 nKeyTime;
u08 usb_link;

#define	EV_IDLE		0
#define	EV_PLAYLIST	1	// playlist change
#define	EV_NEXTPL	2	// next playlist
#define	EV_PREVPL	3	// prevous playlist
#define	EV_BALANCE	4	// balance control
#define	EV_MBASS	5	// old loudness
#define	EV_RANDOM	6	// random on/off
#define	EV_REPEAT	7	// repeat mode
#define	EV_TIME		8	// song time mode
#define	EV_CONTRAST	9	// LCD contrast
#define	EV_AUTOLOCK	10	// autolock mode
#define	EV_LIGHTMODE	11	// backlight mode

#define	EV_PLAY		12
#define	EV_STOP		13
#define	EV_NEXT		14
#define	EV_PREV		15
#define	EV_UP		16	// volume or search UP
#define	EV_DOWN		17	// volume or search DOWN
#define	EV_FFWD		18
#define	EV_MENU		19
#define	EV_PLAY_USB	20	// playing via USB
#define	EV_LASTEVENT	21	// for events count calculation

#define event_e u08	

event_e get_event(void);
void set_event(event_e e);
void send_sinewave_beeps(void);

#define SINE_300	54
#define SINE_500	65
#define SINE_800	64
#define SINE_1000	62
#define SINE_1500	82
#define SINE_2000	80
#define SINE_2500	89
#define SINE_3000	76


// PIN assignements on the yampp7/USB board

#define BUTTON_1	PORTE0
#define DREQ_PIN	PD0
#define BUTTON_2	PD1
#define BUTTON_3	PD4
#define BUTTON_4	PD5
#define LED_PIN		PB0
#define RESET_PIN	PB1		// reset for VS1001

#define CHARGE_PORT	PORTE
#define CHARGE_DDR	DDRE
#define CHARGE_INP	PINE

#ifdef PCB_REV_D
 #define CHARGE_PIN	PORTE1		// ALE pin
#else
 #define CHARGE_PIN	PORTE2		// OC1B pin
#endif

// CARD I/O functions depended of card version (CF/MMC)
#ifdef MMC_CARD
 #define CARD_Read_USB		MMC_Read_USB
 #define CARD_Write_USB		MMC_Write_USB
 #define CARD_Read		MMC_Read
 #define CARD_Write		MMC_Write
 #define CARD_Identify		MMC_Name
 #define card_sbuf		mmc_sbuf
#else
 #define CARD_Read_USB		ATA_Read_USB
 #define CARD_Write_USB		ATA_Write_USB
 #define CARD_Read		ATA_Read
 #define CARD_Write		ATA_Write
 #define CARD_Identify		ATA_Identify
 #define card_sbuf		ata_sbuf
#endif


// EEPROM structure
#define EEPROM_VOLUME		0x001	// 1 byte - volume
#define EEPROM_PLAYLIST		0x002	// 2 bytes - last song number
#define EEPROM_SONGPOS		0x004	// 2 bytes - last song number
#define EEPROM_RANDOM		0x006  	// 1 byte
#define EEPROM_LOUDNESS		0x007	// 1 byte
#define EEPROM_REPEAT		0x008  	// 1 byte
#define EEPROM_AUTOLOCK		0x009	// 1 byte - autolock status
#define EEPROM_LCD_CONTRAST	0x00A	// 1 byte - LCD contrast
#define EEPROM_BACKLIGHT	0x00B	// 1 byte - LCD backlight mode
#define EEPROM_TIME		0x00C	// 1 byte - song time mode
#define EEPROM_BALANCE		0x00D	// 1 byte - balance

// Note.
// This settings is used by ASM routines, and is defined in lcd.h too.
#define EEPROM_LANGTAB		0x010   // 20 bytes
#define EEPROM_LANGCHARS	0x028	// 20*14 = 280 bytes

//------------------------------------------------------------------------------------------