/* sd2snes - SD card based universal cartridge for the SNES Copyright (C) 2009-2010 Maximilian Rehkopf uC 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_spi.h: functions for SPI ctrl, SRAM interfacing and feature configuration */ #ifndef _FPGA_SPI_H #define _FPGA_SPI_H #include #include "bits.h" #define FPGA_SS_BIT 16 #define FPGA_SS_REG LPC_GPIO0 #define FPGA_SELECT() do {FPGA_TX_SYNC(); BITBAND(FPGA_SS_REG->FIOCLR, FPGA_SS_BIT) = 1;} while (0) #define FPGA_SELECT_ASYNC() do {BITBAND(FPGA_SS_REG->FIOCLR, FPGA_SS_BIT) = 1;} while (0) #define FPGA_DESELECT() do {FPGA_TX_SYNC(); BITBAND(FPGA_SS_REG->FIOSET, FPGA_SS_BIT) = 1;} while (0) #define FPGA_DESELECT_ASYNC() do {BITBAND(FPGA_SS_REG->FIOSET, FPGA_SS_BIT) = 1;} while (0) #define FPGA_TX_SYNC() spi_tx_sync() #define FPGA_TX_BYTE(x) spi_tx_byte(x) #define FPGA_RX_BYTE() spi_rx_byte() #define FPGA_TXRX_BYTE(x) spi_txrx_byte(x) #define FPGA_TX_BLOCK(x,y) spi_tx_block(x,y) #define FPGA_RX_BLOCK(x,y) spi_rx_block(x,y) #define FPGA_SPI_FAST() spi_set_speed(SPI_SPEED_FPGA_FAST) #define FPGA_SPI_SLOW() spi_set_speed(SPI_SPEED_FPGA_SLOW) #define FEAT_MSU1 (1 << 3) #define FEAT_SRTC (1 << 2) #define FEAT_ST0010 (1 << 1) #define FEAT_DSPX (1 << 0) void fpga_spi_init(void); uint8_t fpga_test(void); uint16_t fpga_status(void); void spi_fpga(void); void spi_sd(void); void spi_none(void); void set_mcu_addr(uint32_t); void set_dac_addr(uint16_t); void set_dac_vol(uint8_t); void dac_play(void); void dac_pause(void); void dac_reset(void); void msu_reset(uint16_t); void set_msu_addr(uint16_t); void set_msu_status(uint8_t set, uint8_t reset); void set_saveram_mask(uint32_t); void set_rom_mask(uint32_t); void set_mapper(uint8_t val); void fpga_sddma(uint8_t tgt, uint8_t partial); void fpga_set_sddma_range(uint16_t start, uint16_t end); uint8_t get_msu_volume(void); uint16_t get_msu_track(void); uint32_t get_msu_offset(void); uint32_t get_snes_sysclk(void); void set_bsx_regs(uint8_t set, uint8_t reset); void set_fpga_time(uint64_t time); void fpga_reset_srtc_state(void); void fpga_reset_dspx_addr(void); void fpga_write_dspx_pgm(uint32_t data); void fpga_write_dspx_dat(uint16_t data); void fpga_dspx_reset(uint8_t reset); void fpga_set_features(uint8_t feat); #endif