sd.h

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00001 
00044 #ifndef DRV_SD_H
00045 #define DRV_SD_H
00046 
00047 #include "cfg/cfg_sd.h"
00048 
00049 #include <io/kfile.h>
00050 #include <io/kblock.h>
00051 
00052 #include <fs/fatfs/diskio.h>
00053 
00054 
00055 #define SD_UNBUFFERED     BV(0) ///< Open SD memory disabling page caching, no modification and partial write are allowed.
00056 
00060 typedef struct Sd
00061 {
00062     KBlock b;   
00063     KFile *ch;  
00064     uint16_t r1;  
00065     uint16_t tranfer_len; 
00066 } Sd;
00067 
00068 bool sd_initUnbuf(Sd *sd, KFile *ch);
00069 bool sd_initBuf(Sd *sd, KFile *ch);
00070 
00071 #if CONFIG_SD_OLD_INIT
00072     #if !(ARCH & ARCH_NIGHTTEST)
00073         #warning "Deprecated: this API will be removed in the next major release,"
00074         #warning "please disable CONFIG_SD_OLD_INIT and pass explicitly the SD context to sd_init()."
00075     #endif
00076 
00089     #define sd_init(ch) {static struct Sd sd; sd_initUnbuf(&sd, (ch));}
00090 
00091 #else
00092 
00105     #define sd_init(sd, ch, buffered) ((buffered & SD_UNBUFFERED) ? sd_initUnbuf((sd), (ch)) : sd_initBuf((sd), (ch)))
00106 
00107 #endif
00108 
00109 
00110 #define KBT_SD MAKE_ID('S', 'D', 'B', 'K')
00111 
00112 bool sd_test(Sd *sd);
00113 void sd_writeTest(Sd *sd);
00114 
00115 INLINE Sd *SD_CAST(KBlock *b)
00116 {
00117     ASSERT(b->priv.type == KBT_SD);
00118     return (Sd *)b;
00119 }
00120 
00121 
00122 #endif /* DRV_SD_H */