fpga_spi.h 1.4 KB

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  1. /* sd2snes - SD card based universal cartridge for the SNES
  2. Copyright (C) 2009-2010 Maximilian Rehkopf <otakon@gmx.net>
  3. AVR firmware portion
  4. Inspired by and based on code from sd2iec, written by Ingo Korb et al.
  5. See sdcard.c|h, config.h.
  6. FAT file system access based on code by ChaN, Jim Brain, Ingo Korb,
  7. see ff.c|h.
  8. This program is free software; you can redistribute it and/or modify
  9. it under the terms of the GNU General Public License as published by
  10. the Free Software Foundation; version 2 of the License only.
  11. This program is distributed in the hope that it will be useful,
  12. but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. GNU General Public License for more details.
  15. You should have received a copy of the GNU General Public License
  16. along with this program; if not, write to the Free Software
  17. Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18. fpga_spi.h: functions for SPI ctrl, SRAM interfacing and feature configuration
  19. */
  20. #define FPGA_SS_HIGH() do {PORTC |= _BV(PC7);} while (0)
  21. #define FPGA_SS_LOW() do {PORTC &= ~_BV(PC7);} while (0)
  22. void fpga_spi_init(void);
  23. void fpga_spi_test(void);
  24. void spi_fpga(void);
  25. void spi_sd(void);
  26. void spi_none(void);
  27. void set_avr_addr(uint32_t);
  28. void set_saveram_mask(uint32_t);
  29. void set_rom_mask(uint32_t);