sd_reader_routines.h

SD卡读卡器模块的VHDL及软件驱动代码

#ifndef SD_READER_ROUTINES_H_
#define SD_READER_ROUTINES_H_

#include <stddef.h>
#include <alt_types.h>
#include <sys/alt_dma.h>

#define SD_CARD_BLOCK_SIZE	512

int sd_reader_init( void* sd_reader_base );

int sd_reader_query_cardready( void* sd_reader_base );

int sd_reader_query_dataready( void* sd_reader_base );

int sd_reader_request_initcard( void* sd_reader_base );

int sd_reader_request_read( void* sd_reader_base, alt_u32 secindex, int autoreread );

int sd_reader_request_streamread( void* sd_reader_base, alt_u32 secindex );

int sd_reader_request_stopread( void* sd_reader_base );

int sd_reader_read( alt_dma_rxchan rx, void* sd_reader_base, void* data, int size, int* crcerr );

#endif /*SD_READER_ROUTINES_H_*/