123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778 |
- /* sd2snes - SD card based universal cartridge for the SNES
- Copyright (C) 2009-2010 Maximilian Rehkopf <otakon@gmx.net>
- AVR firmware portion
- Inspired by and based on code from sd2iec, written by Ingo Korb et al.
- See sdcard.c|h, config.h.
- FAT file system access based on code by ChaN, Jim Brain, Ingo Korb,
- 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
- fpga.h: FPGA (re)configuration
- */
- #ifndef FPGA_H
- #define FPGA_H
- void fpga_init(void);
- uint8_t fpga_test(void);
- void fpga_postinit(void);
- void fpga_pgm(uint8_t* filename);
- void set_avr_read(uint8_t val);
- void set_avr_write(uint8_t val);
- void set_avr_ena(uint8_t val);
- void set_avr_nextaddr(uint8_t val);
- void set_avr_addr_reset(uint8_t val);
- void set_avr_data(uint8_t data);
- void set_avr_addr_en(uint8_t val);
- void set_avr_mapper(uint8_t val);
- void set_avr_bank(uint8_t val);
- uint8_t SPI_OFFLOAD;
- #define FPGA_TEST_TOKEN (0xa5)
- // some macros for bulk transfers (faster)
- #define FPGA_SEND_BYTE(data) do {SET_AVR_DATA(data); CCLK();} while (0)
- #define FPGA_SEND_BYTE_SERIAL(data) do {SET_AVR_DATA(data); CCLK();\
- SET_AVR_DATA(data<<1); CCLK(); SET_AVR_DATA(data<<2); CCLK();\
- SET_AVR_DATA(data<<3); CCLK(); SET_AVR_DATA(data<<4); CCLK();\
- SET_AVR_DATA(data<<5); CCLK(); SET_AVR_DATA(data<<6); CCLK();\
- SET_AVR_DATA(data<<7); CCLK();} while (0)
- #define SET_CCLK() do {PORTD |= _BV(PD4);} while (0)
- #define CLR_CCLK() do {PORTD &= ~_BV(PD4);} while (0)
- #define CCLK() do {SET_CCLK(); CLR_CCLK();} while (0)
- #define SET_AVR_READ() do {PORTB |= _BV(PB3);} while (0)
- #define CLR_AVR_READ() do {PORTB &= ~_BV(PB3);} while (0)
- #define SET_AVR_WRITE() do {PORTB |= _BV(PB2);} while (0)
- #define CLR_AVR_WRITE() do {PORTB &= ~_BV(PB2);} while (0)
- #define SET_AVR_EXCL() do {PORTD |= _BV(PD7);} while (0)
- #define CLR_AVR_EXCL() do {PORTD &= ~_BV(PD7);} while (0)
- #define SET_AVR_NEXTADDR() do {PORTA |= _BV(PA4);} while (0)
- #define CLR_AVR_NEXTADDR() do {PORTA &= ~_BV(PA4);} while (0)
- #define SET_AVR_ADDR_RESET() do {PORTA |= _BV(PA5);} while (0)
- #define CLR_AVR_ADDR_RESET() do {PORTA &= ~_BV(PA5);} while (0)
- #define SET_AVR_ADDR_EN() do {PORTA |= _BV(PA6);} while (0)
- #define CLR_AVR_ADDR_EN() do {PORTA &= ~_BV(PA6);} while (0)
- #define AVR_NEXTADDR() do {SET_AVR_NEXTADDR(); CLR_AVR_NEXTADDR();} while (0)
- #define AVR_ADDR_RESET() do {CLR_AVR_ADDR_RESET();\
- AVR_NEXTADDR();SET_AVR_ADDR_RESET();} while (0)
- #define SET_AVR_DATA(data) do {PORTC = (uint8_t)data;} while (0)
- #define AVR_READ() do {CLR_AVR_READ(); SET_AVR_READ();} while (0)
- #define AVR_WRITE() do {CLR_AVR_WRITE(); SET_AVR_WRITE();} while (0)
- #define AVR_DATA (PINC)
- #endif
|