Angel David Yaguana Hernandez / MSCFileSystem_Sherckuith

MSCFileSystem.cpp@0:fdc81fb10bd5, 2012-04-10 (annotated)

Committer:
apm_litoral
Date:
Tue Apr 10 03:33:17 2012 +0000
Revision:
0:fdc81fb10bd5

        

        
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#include "MSCFileSystem.h"





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#include "usbhost_inc.h"





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#define EN_On         1





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#define EN_Off        0





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/*





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MSCFileSystem::MSCFileSystem(PinName host, const char* name)





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        :_host(host), FATFileSystem(name) 





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        {





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    _host = EN_On ;





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}*/





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MSCFileSystem::MSCFileSystem(const char* name) :





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        FATFileSystem(name) {





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}





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void print_inquiry(USB_INT08U *inqReply) {





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    // see USB Mass Storage Class � UFI Command Specification,





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    // 4.2 INQUIRY Command





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    //printf("Inquiry reply:\n");





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    uint8_t tmp = inqReply[0]&0x1F;





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    printf("Peripheral device type: %02Xh\n", tmp);





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    if ( tmp == 0 )





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        printf("\t- Direct access (floppy)\n");





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    else if ( tmp == 0x1F )





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        printf("\t- none (no FDD connected)\n");





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    else





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        printf("\t- unknown type\n");





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    tmp = inqReply[1] >> 7;





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    printf("Removable Media Bit: %d\n", tmp);





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    tmp = inqReply[2] & 3;





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    printf("ANSI Version: %02Xh\n", tmp);





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    if ( tmp != 0 )





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        printf("\t- warning! must be 0\n");





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    tmp = (inqReply[2]>>3) & 3;





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    printf("ECMA Version: %02Xh\n", tmp);





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    if ( tmp != 0 )





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        printf("\t- warning! should be 0\n");





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    tmp = inqReply[2]>>6;





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    printf("ISO Version: %02Xh\n", tmp);





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    if ( tmp != 0 )





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        printf("\t- warning! should be 0\n");





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    tmp = inqReply[3] & 0xF;





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    printf("Response Data Format: %02Xh\n", tmp);





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    if ( tmp != 1 )





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        printf("\t- warning! should be 1\n");





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    tmp = inqReply[4];





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    printf("Additional length: %02Xh\n", tmp);





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    if ( tmp != 0x1F )





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        printf("\t- warning! should be 1Fh\n");





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    printf("Vendor Information: '%.8s'\n", &inqReply[8]);





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    printf("Product Identification: '%.16s'\n", &inqReply[16]);





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    printf("Product Revision: '%.4s'\n", &inqReply[32]);





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}





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int MSCFileSystem::initialise_msc() {





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    //_host = EN_On ;//





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    USB_INT32S  rc;





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    USB_INT08U  inquiryResult[INQUIRY_LENGTH];





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    //print_clock();





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    Host_Init();               /* Initialize the  host controller                                    */





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    rc = Host_EnumDev();       /* Enumerate the device connected                                            */





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    if (rc != OK) {





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        fprintf(stderr, "Could not enumerate device: %d\n", rc);





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        return rc;





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    }





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    /* Initialize the mass storage and scsi interfaces */





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    rc = MS_Init( &_blkSize, &_numBlks, inquiryResult );





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    if (rc != OK) {





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        fprintf(stderr, "Could not initialize mass storage interface: %d\n", rc);





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        return rc;





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    }





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    //printf("Successfully initialized mass storage interface; %d blocks of size %d\n", _numBlks, _blkSize);





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    //print_inquiry(inquiryResult);





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    // FATFileSystem supports only 512-byte blocks





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    //_host = EN_Off ;





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    return _blkSize == 512 ? OK : 1;





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}





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int MSCFileSystem::disk_initialize() {





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    //_host = EN_On ;





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    if ( initialise_msc() != OK ) {





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        //_host = EN_Off ;





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        return 1;





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    } else {





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        //_host = EN_Off ;





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        return 0;





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    }





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}





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int MSCFileSystem::disk_write(const char *buffer, int block_number) {





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    //_host = EN_On ;





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    if ( OK == MS_BulkSend(block_number, 1, (USB_INT08U *)buffer) ) {





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        //_host = EN_Off ;





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        return 0;





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    } else {





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        //_host = EN_Off ;





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        return 1;





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    }





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}





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int MSCFileSystem::disk_read(char *buffer, int block_number) {





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    //_host = EN_On ;





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    if ( OK == MS_BulkRecv(block_number, 1, (USB_INT08U *)buffer) ) {





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        //_host = EN_Off ;





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        return 0;





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    } else {





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        //_host = EN_Off ;





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        return 1;





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    }





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}





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int MSCFileSystem::disk_status() {





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    //_host = EN_On ;





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    //_host = EN_Off ;





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    return 0;





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}





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int MSCFileSystem::disk_sync() {





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    //_host = EN_On ;





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    //_host = EN_Off ;





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    return 0;





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}





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int MSCFileSystem::disk_sectors() {





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    //_host = EN_On ;





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    //_host = EN_Off ;





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    return 0;





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}