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- /* 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
- #include <arm/NXP/LPC17xx/LPC17xx.h>
- #include "bits.h"
- void fpga_set_prog_b(uint8_t val);
- void fpga_set_cclk(uint8_t val);
- int fpga_get_initb(void);
- void fpga_init(void);
- void fpga_postinit(void);
- void fpga_pgm(uint8_t* filename);
- void fpga_rompgm(void);
- void set_mcu_ovr(uint8_t val);
- uint8_t SPI_OFFLOAD;
- #define CCLKREG LPC_GPIO0
- #define PROGBREG LPC_GPIO1
- #define INITBREG LPC_GPIO2
- #define DINREG LPC_GPIO2
- #define DONEREG LPC_GPIO0
- #define CCLKBIT (11)
- #define PROGBBIT (10)
- #define INITBBIT (9)
- #define DINBIT (8)
- #define DONEBIT (22)
- #define FPGA_TEST_TOKEN (0xa5)
- // some macros for bulk transfers (faster)
- #define FPGA_SEND_BYTE_SERIAL(data) do {SET_FPGA_DIN(data>>7); CCLK();\
- SET_FPGA_DIN(data>>6); CCLK(); SET_FPGA_DIN(data>>5); CCLK();\
- SET_FPGA_DIN(data>>4); CCLK(); SET_FPGA_DIN(data>>3); CCLK();\
- SET_FPGA_DIN(data>>2); CCLK(); SET_FPGA_DIN(data>>1); CCLK();\
- SET_FPGA_DIN(data); CCLK();} while (0)
- #define SET_CCLK() do {BITBAND(LPC_GPIO0->FIOSET, 11) = 1;} while (0)
- #define CLR_CCLK() do {BITBAND(LPC_GPIO0->FIOCLR, 11) = 1;} while (0)
- #define CCLK() do {SET_CCLK(); CLR_CCLK();} while (0)
- #define SET_MCU_OVR() do {BITBAND(LPC_GPIO2->FIOSET, 8) = 1;} while (0)
- #define CLR_MCU_OVR() do {BITBAND(LPC_GPIO2->FIOCLR, 8) = 1;} while (0)
- #define SET_FPGA_DIN(data) do {LPC_GPIO2->FIOPIN1 = data;} while (0)
- #endif
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