*
* \brief Function library for secure digital memory.
*
- * Right now, the interface for these function is the one defined in diskio.h from
- * the FatFS module.
*
* \author Francesco Sacchi <batt@develer.com>
*
* $WIZ$ module_name = "sd"
- * $WIZ$ module_depends = "kfile", "timer"
+ * $WIZ$ module_depends = "kfile", "timer", "kblock"
* $WIZ$ module_hw = "bertos/hw/hw_sd.h"
* $WIZ$ module_configuration = "bertos/cfg/cfg_sd.h"
*/
#ifndef DRV_SD_H
#define DRV_SD_H
+#include "cfg/cfg_sd.h"
+
#include <io/kfile.h>
#include <io/kblock.h>
#include <fs/fatfs/diskio.h>
-#include "cfg/cfg_sd.h"
+#if CPU_CM3_SAM3X8
+
+typedef struct SDcid
+{
+ uint8_t manfid;
+ uint8_t prod_name[8];
+ uint32_t serial;
+ uint16_t oemid;
+ uint32_t year_off;
+ uint8_t m_rev;
+ uint8_t l_rev;
+}SDcid;
+
+typedef struct SDcsd
+{
+ uint8_t structure;
+ uint8_t ccc; ///< Card command classes
+ uint32_t erase_size; ///< The size of an erasable sector, in write block len
+ uint32_t capacity; ///< Card size in byte
+ uint32_t max_data_rate; ///< Step rate, usec
+ uint32_t blk_len; ///< Block data size len in byte
+ uint32_t blk_num; ///< Number of block in card
+ uint32_t write_blk_bits; ///< Max write block length in bits
+ uint32_t read_blk_bits; ///< Max read block length in bits
+ uint8_t read_partial:1,
+ read_misalign:1,
+ write_partial:1,
+ write_misalign:1;
+} SDcsd;
+
+typedef struct SDssr
+{
+ uint8_t bus_width;
+ uint8_t card_type;
+ uint8_t speed_class;
+ uint8_t au_size;
+ uint8_t erase_size;
+} SDssr;
+
+
+#define SD_READY_FOR_DATA BV(8)
+#define SD_CARD_IS_LOCKED BV(25)
+
+#define SD_SEND_CID_RCA 0
+#define SD_SEND_ALL_CID BV(0)
+#endif
+
+
+#define SD_UNBUFFERED BV(0) ///< Open SD memory disabling page caching, no modification and partial write are allowed.
+/**
+ * SD Card context structure.
+ */
typedef struct Sd
{
- KBlock b;
+
+ KBlock b; ///< KBlock base class
KFile *ch; ///< SPI communication channel
- uint16_t r1;
+ uint16_t r1; ///< Last status data received from SD
+ uint16_t tranfer_len; ///< Lenght for the read/write commands, cached in order to increase speed.
+
+ #if CPU_CM3_SAM3X8
+ SDcid cid;
+ SDcsd csd;
+ SDssr ssr;
+ uint32_t addr;
+ uint32_t status;
+ #endif
+
} Sd;
bool sd_initUnbuf(Sd *sd, KFile *ch);
bool sd_initBuf(Sd *sd, KFile *ch);
+
+#if CPU_CM3_SAM3X8
+
+void sd_dumpCsd(Sd *sd);
+void sd_dumpCid(Sd *sd);
+void sd_dumpSsr(Sd *sd);
+
+void sd_sendInit(void);
+void sd_goIdle(void);
+int sd_sendIfCond(Sd *sd);
+int sd_sendAppOpCond(Sd *sd);
+
+int sd_getCid(Sd *sd, uint32_t addr, uint8_t flag);
+int sd_getCsd(Sd *sd);
+int sd_getSrc(Sd *sd);
+
+int sd_appStatus(Sd *sd);
+int sd_getRelativeAddr(Sd *sd);
+
+int sd_getStatus(Sd *sd, uint32_t *buf, size_t words);
+
+int sd_selectCard(Sd *sd);
+int sd_deSelectCard(Sd *sd);
+int sd_setBusWidth(Sd *sd, size_t len);
+int sd_set_BlockLen(Sd *sd, size_t len);
+void sd_setHightSpeed(Sd *sd);
+int sd_readSingleBlock(Sd *sd, size_t index, uint32_t *buf, size_t words);
+int sd_writeSingleBlock(Sd *sd, size_t index, uint32_t *buf, size_t words);
+
+
+INLINE int sd_setBus4bit(Sd *sd)
+{
+ return sd_setBusWidth(sd, 4);
+}
+
+INLINE int sd_setBus1bit(Sd *sd)
+{
+ return sd_setBusWidth(sd, 1);
+}
+
+#endif
+
+
#if CONFIG_SD_OLD_INIT
- #warning "Deprecated: this API will be removed in the next major release,"
- #warning "please disable CONFIG_SD_OLD_INIT and pass explicitly the SD context to sd_init()."
+ #if !(ARCH & ARCH_NIGHTTEST)
+ #warning "Deprecated: this API will be removed in the next major release,"
+ #warning "please disable CONFIG_SD_OLD_INIT and pass explicitly the SD context to sd_init()."
+ #endif
/**
* Initializes the SD driver.
*
* \note This API is deprecated, disable CONFIG_SD_OLD_INIT and
* use the new one instead.
+ *
+ * \see CONFIG_SD_OLD_INIT.
*/
#define sd_init(ch) {static struct Sd sd; sd_initUnbuf(&sd, (ch));}
*
* \return true if initialization succeds, false otherwise.
*/
- #define sd_init(sd, ch, buffered) ((buffered) ? sd_initBuf((sd), (ch)) : sd_initUnbuf((sd), (ch)))
+ #define sd_init(sd, ch, buffered) ((buffered & SD_UNBUFFERED) ? sd_initUnbuf((sd), (ch)) : sd_initBuf((sd), (ch)))
#endif
return (Sd *)b;
}
-
#endif /* DRV_SD_H */
+