archive MK1 AVR source

2010-09-06 23:51:48 +02:00
parent a6d66e7a8b
commit a9b84c3e0b
54 changed files with 1220 additions and 793 deletions
--- a/mk1-src/config.h
+++ b/mk1-src/config.h
@@ -0,0 +1,119 @@
+/* sd2snes - SD card based universal cartridge for the SNES
+   Copyright (C) 2009-2010 Maximilian Rehkopf <otakon@gmx.net>
+   This file was adapted from sd2iec, written by Ingo Korb.
+   Original copyright header follows:
+*/
+/*
+   sd2iec - SD/MMC to Commodore serial bus interface/controller
+   Copyright (C) 2007-2009  Ingo Korb <ingo@akana.de>
+
+   Inspiration and low-level SD/MMC access based on code from MMC2IEC
+     by Lars Pontoppidan et al., see sdcard.c|h and config.h.
+
+   FAT filesystem access based on code from ChaN and Jim Brain, see ff.c|h.
+
+   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; version 2 of the License only.
+
+   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
+
+
+   config.h: User-configurable options to simplify hardware changes and/or
+             reduce the code/ram requirements of the code.
+
+
+   Based on MMC2IEC, original copyright header follows:
+
+//
+// Title        : MMC2IEC - Configuration
+// Author       : Lars Pontoppidan
+// Date         : Jan. 2007
+// Version      : 0.7
+// Target MCU   : AtMega32(L) at 8 MHz
+//
+//
+// DISCLAIMER:
+// The author is in no way responsible for any problems or damage caused by
+// using this code. Use at your own risk.
+//
+// LICENSE:
+// This code is distributed under the GNU Public License
+// which can be found at http://www.gnu.org/licenses/gpl.txt
+//
+
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "autoconf.h"
+
+#  define HW_NAME "SD2IEC"
+#  define HAVE_SD
+#  define SDCARD_DETECT         (!(PIND & _BV(PD2)))
+#  define SDCARD_DETECT_SETUP() do { DDRD &= ~_BV(PD2); PORTD |= _BV(PD2); } while(0)
+#  if defined __AVR_ATmega32__
+#    define SD_CHANGE_SETUP()   do { MCUCR |= _BV(ISC00); GICR |= _BV(INT0); } while(0)
+#  elif defined __AVR_ATmega644__ || defined __AVR_ATmega644P__
+#    define SD_CHANGE_SETUP()   do { EICRA |= _BV(ISC00); EIMSK |= _BV(INT0); } while(0)
+#  else
+#    error Unknown chip!
+#  endif
+#  define SD_CHANGE_VECT        INT0_vect
+#  define SDCARD_WP  			(PINA & _BV(PA0))
+#  define SDCARD_WP_SETUP()     do { DDRA &= ~ _BV(PA0); PORTA |= _BV(PA0); } while(0)
+#  define SD_CHANGE_ICR         MCUCR
+#  define SD_SUPPLY_VOLTAGE     (1L<<21)
+#  define DEVICE_SELECT         (8+!(PINA & _BV(PA2))+2*!(PINA & _BV(PA3)))
+#  define DEVICE_SELECT_SETUP() do {        \
+             DDRA  &= ~(_BV(PA2)|_BV(PA3)); \
+             PORTA |=   _BV(PA2)|_BV(PA3);  \
+          } while (0)
+#  define BUSY_LED_SETDDR()     DDRA  |= _BV(PA0)
+#  define BUSY_LED_ON()         PORTA &= ~_BV(PA0)
+#  define BUSY_LED_OFF()        PORTA |= _BV(PA0)
+#  define DIRTY_LED_SETDDR()    DDRA  |= _BV(PA1)
+#  define DIRTY_LED_ON()        PORTA &= ~_BV(PA1)
+#  define DIRTY_LED_OFF()       PORTA |= _BV(PA1)
+#  define DIRTY_LED_PORT        PORTA
+#  define DIRTY_LED_BIT()       _BV(PA1)
+#  define AUX_LED_SETDDR()      do {} while (0)
+#  define AUX_LED_ON()          do {} while (0)
+#  define AUX_LED_OFF()         do {} while (0)
+#  define BUTTON_PIN            PINA
+#  define BUTTON_PORT           PORTA
+#  define BUTTON_DDR            DDRA
+#  define BUTTON_MASK           (_BV(PA4)|_BV(PA5))
+#  define BUTTON_NEXT           _BV(PA4)
+#  define BUTTON_PREV           _BV(PA5)
+
+/* An interrupt for detecting card changes implies hotplugging capability */
+#if defined(SD_CHANGE_VECT) || defined (CF_CHANGE_VECT)
+#  define HAVE_HOTPLUG
+#endif
+
+/* Generate dummy functions for the BUSY LED if required */
+#ifdef SINGLE_LED
+#  define BUSY_LED_SETDDR() do {} while(0)
+#  define BUSY_LED_ON()     do {} while(0)
+#  define BUSY_LED_OFF()    do {} while(0)
+#endif
+
+/* Create some temporary symbols so we can calculate the number of */
+/* enabled storage devices.                                        */
+#ifdef HAVE_SD
+#  define TMP_SD 1
+#endif
+
+/* Remove the temporary symbols */
+#undef TMP_SD
+
+#endif