42 lines
856 B
C
42 lines
856 B
C
#include "sfd.h"
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#include <storage/emmc.h>
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#include <storage/sdmmc.h>
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static sdmmc_storage_t *_storage;
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static u32 _offset;
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static u32 _size;
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static void ensure_partition(){
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if(_storage == &emmc_storage){
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emmc_set_partition(EMMC_GPP);
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}
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}
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int sfd_read(u32 sector, u32 count, void *buff){
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if(sector + _offset + count > _offset + _size){
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return 0;
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}
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ensure_partition();
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return sdmmc_storage_read(_storage, sector + _offset, count, buff);
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}
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int sfd_write(u32 sector, u32 count, void *buff){
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if(sector + _offset + count > _offset + _size){
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return 0;
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}
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ensure_partition();
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return sdmmc_storage_write(_storage, sector + _offset, count, buff);
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}
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bool sfd_init(sdmmc_storage_t *storage, u32 offset, u32 size){
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_storage = storage;
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_offset = offset;
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_size = size;
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return true;
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}
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void sfd_end(){
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_storage = NULL;
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_offset = 0;
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_size = 0;
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} |