msc.h

00001 #ifndef MSC_H
00002 #define MSC_H
00003 #include "UsbHostMgr.h"
00004 #include "UsbEndpoint.h"
00005 #include "UsbBaseClass.h"
00006 #include "FATFileSystem.h"
00007 
00008 #define  SCSI_CMD_REQUEST_SENSE      0x03
00009 #define  SCSI_CMD_TEST_UNIT_READY    0x00
00010 #define  SCSI_CMD_INQUIRY            0x12
00011 #define  SCSI_CMD_READ_10            0x28
00012 #define  SCSI_CMD_READ_CAPACITY      0x25
00013 #define  SCSI_CMD_WRITE_10           0x2A
00014 
00015 #pragma pack(push,1)
00016 typedef struct stcbw {
00017     uint32_t dCBWSignature;
00018     uint32_t dCBWTag;
00019     uint32_t dCBWDataTraansferLength;
00020     uint8_t bmCBWFlags;
00021     uint8_t bCBWLUN;
00022     uint8_t bCBWCBLength;
00023     uint8_t CBWCB[16];
00024 } CBW;
00025 
00026 typedef struct stcsw {
00027     uint32_t dCSWSignature;
00028     uint32_t dCSWTag;
00029     uint32_t dCSWDataResidue;
00030     uint8_t  bCSWStatus;
00031 } CSW;
00032 #pragma pack(pop)
00033 
00034 class msc : public FATFileSystem, public UsbBaseClass {
00035 public:
00036     msc(const char* name = NULL, int drive = 0);
00037     virtual int disk_initialize();
00038     virtual int disk_write(const char *buffer, int block_number);
00039     virtual int disk_read(char *buffer, int block_number);    
00040     virtual int disk_status();
00041     virtual int disk_sync();
00042     virtual int disk_sectors();
00043 
00044     int setup(int timeout = 9000);
00045     void _test();
00046 private:
00047     int ParseConfiguration();
00048     int BulkOnlyMassStorageReset();
00049     int GetMaxLUN();
00050     int ReadCapacity();
00051     int GetSenseInfo();
00052     int TestUnitReady();
00053     int Inquire();
00054     int MS_BulkRecv(uint32_t block_number, int num_blocks, uint8_t* user_buffer);
00055     int MS_BulkSend(uint32_t block_number, int num_blocks, uint8_t* user_buffer);
00056     int CommandTransport(const uint8_t* cdb, int size);
00057     int StatusTransport();
00058     int _bulkRecv(uint8_t* buf, int size);
00059     int _bulkSend(uint8_t* buf, int size);
00060     const char* m_name;
00061     int m_drive;
00062     uint32_t m_numBlocks;
00063     int m_BlockSize;
00064     int m_lun;
00065     int m_MaxLUN;
00066     int m_interface;
00067     uint32_t m_tag;
00068     CBW m_CBW;
00069     CSW m_CSW;
00070     UsbDevice* m_pDev;
00071     UsbEndpoint* m_pEpBulkIn;
00072     UsbEndpoint* m_pEpBulkOut;
00073 };
00074 
00075 #endif // MSC_H