120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/* sd2snes - SD card based universal cartridge for the SNES
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Copyright (C) 2009-2010 Maximilian Rehkopf <otakon@gmx.net>
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This file was adapted from sd2iec, written by Ingo Korb.
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Original copyright header follows:
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*/
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/*
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sd2iec - SD/MMC to Commodore serial bus interface/controller
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Copyright (C) 2007-2009 Ingo Korb <ingo@akana.de>
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Inspiration and low-level SD/MMC access based on code from MMC2IEC
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by Lars Pontoppidan et al., see sdcard.c|h and config.h.
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FAT filesystem access based on code from ChaN and Jim Brain, see ff.c|h.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License only.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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config.h: User-configurable options to simplify hardware changes and/or
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reduce the code/ram requirements of the code.
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Based on MMC2IEC, original copyright header follows:
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//
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// Title : MMC2IEC - Configuration
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// Author : Lars Pontoppidan
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// Date : Jan. 2007
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// Version : 0.7
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// Target MCU : AtMega32(L) at 8 MHz
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//
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//
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// DISCLAIMER:
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// The author is in no way responsible for any problems or damage caused by
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// using this code. Use at your own risk.
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//
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// LICENSE:
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// This code is distributed under the GNU Public License
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// which can be found at http://www.gnu.org/licenses/gpl.txt
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//
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*/
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#ifndef CONFIG_H
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#define CONFIG_H
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#include "autoconf.h"
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# define HW_NAME "SD2IEC"
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# define HAVE_SD
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# define SDCARD_DETECT (!(PIND & _BV(PD2)))
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# define SDCARD_DETECT_SETUP() do { DDRD &= ~_BV(PD2); PORTD |= _BV(PD2); } while(0)
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# if defined __AVR_ATmega32__
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# define SD_CHANGE_SETUP() do { MCUCR |= _BV(ISC00); GICR |= _BV(INT0); } while(0)
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# elif defined __AVR_ATmega644__ || defined __AVR_ATmega644P__
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# define SD_CHANGE_SETUP() do { EICRA |= _BV(ISC00); EIMSK |= _BV(INT0); } while(0)
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# else
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# error Unknown chip!
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# endif
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# define SD_CHANGE_VECT INT0_vect
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# define SDCARD_WP (PINA & _BV(PA0))
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# define SDCARD_WP_SETUP() do { DDRA &= ~ _BV(PA0); PORTA |= _BV(PA0); } while(0)
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# define SD_CHANGE_ICR MCUCR
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# define SD_SUPPLY_VOLTAGE (1L<<21)
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# define DEVICE_SELECT (8+!(PINA & _BV(PA2))+2*!(PINA & _BV(PA3)))
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# define DEVICE_SELECT_SETUP() do { \
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DDRA &= ~(_BV(PA2)|_BV(PA3)); \
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PORTA |= _BV(PA2)|_BV(PA3); \
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} while (0)
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# define BUSY_LED_SETDDR() DDRA |= _BV(PA0)
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# define BUSY_LED_ON() PORTA &= ~_BV(PA0)
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# define BUSY_LED_OFF() PORTA |= _BV(PA0)
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# define DIRTY_LED_SETDDR() DDRA |= _BV(PA1)
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# define DIRTY_LED_ON() PORTA &= ~_BV(PA1)
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# define DIRTY_LED_OFF() PORTA |= _BV(PA1)
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# define DIRTY_LED_PORT PORTA
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# define DIRTY_LED_BIT() _BV(PA1)
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# define AUX_LED_SETDDR() do {} while (0)
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# define AUX_LED_ON() do {} while (0)
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# define AUX_LED_OFF() do {} while (0)
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# define BUTTON_PIN PINA
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# define BUTTON_PORT PORTA
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# define BUTTON_DDR DDRA
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# define BUTTON_MASK (_BV(PA4)|_BV(PA5))
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# define BUTTON_NEXT _BV(PA4)
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# define BUTTON_PREV _BV(PA5)
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/* An interrupt for detecting card changes implies hotplugging capability */
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#if defined(SD_CHANGE_VECT) || defined (CF_CHANGE_VECT)
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# define HAVE_HOTPLUG
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#endif
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/* Generate dummy functions for the BUSY LED if required */
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#ifdef SINGLE_LED
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# define BUSY_LED_SETDDR() do {} while(0)
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# define BUSY_LED_ON() do {} while(0)
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# define BUSY_LED_OFF() do {} while(0)
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#endif
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/* Create some temporary symbols so we can calculate the number of */
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/* enabled storage devices. */
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#ifdef HAVE_SD
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# define TMP_SD 1
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#endif
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/* Remove the temporary symbols */
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#undef TMP_SD
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#endif
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