Norimasa Okamoto / Mbed 2 deprecated WebcamServer

Webcam Server.

Dependencies:   uvchost FatFileSystem mbed HTTPServer NetServicesMin

uvc/usb_itd.cpp@0:2b4ea8a138e5, 2012-06-06 (annotated)

Committer:
va009039
Date:
Wed Jun 06 11:47:06 2012 +0000
Revision:
0:2b4ea8a138e5

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


va009039

0:2b4ea8a138e5


     1

#include "mbed.h"





va009039

0:2b4ea8a138e5


     2

#include "usb_itd.h"





va009039

0:2b4ea8a138e5


     3

#define __DEBUG





va009039

0:2b4ea8a138e5


     4

#include "mydbg.h"





va009039

0:2b4ea8a138e5


     5







va009039

0:2b4ea8a138e5


     6

usb_itd::usb_itd(HCITD* itd)





va009039

0:2b4ea8a138e5


     7

{





va009039

0:2b4ea8a138e5


     8

    DBG_ASSERT(itd);





va009039

0:2b4ea8a138e5


     9

    m_itd = itd;





va009039

0:2b4ea8a138e5


    10

}





va009039

0:2b4ea8a138e5


    11







va009039

0:2b4ea8a138e5


    12

bool usb_itd::Done()





va009039

0:2b4ea8a138e5


    13

{





va009039

0:2b4ea8a138e5


    14

    int cc = (m_itd->Control >> 28);





va009039

0:2b4ea8a138e5


    15

    if (cc == 0xe || cc == 0xf) { // not accessed?





va009039

0:2b4ea8a138e5


    16

        return false;





va009039

0:2b4ea8a138e5


    17

    }





va009039

0:2b4ea8a138e5


    18

    if (m_itd->Next) {





va009039

0:2b4ea8a138e5


    19

        return false;





va009039

0:2b4ea8a138e5


    20

    }





va009039

0:2b4ea8a138e5


    21

    return true;





va009039

0:2b4ea8a138e5


    22

}





va009039

0:2b4ea8a138e5


    23







va009039

0:2b4ea8a138e5


    24

int usb_itd::ConditionCode()





va009039

0:2b4ea8a138e5


    25

{





va009039

0:2b4ea8a138e5


    26

    int cc = (m_itd->Control >> 28);





va009039

0:2b4ea8a138e5


    27

    return cc;





va009039

0:2b4ea8a138e5


    28

}





va009039

0:2b4ea8a138e5


    29







va009039

0:2b4ea8a138e5


    30

uint16_t usb_itd::get_psw(int n)





va009039

0:2b4ea8a138e5


    31

{





va009039

0:2b4ea8a138e5


    32

    DBG_ASSERT(n >= 0 && n <= 7);





va009039

0:2b4ea8a138e5


    33

    DBG_ASSERT(m_itd);





va009039

0:2b4ea8a138e5


    34

    uint16_t psw = 0;





va009039

0:2b4ea8a138e5


    35

    switch(n) {





va009039

0:2b4ea8a138e5


    36

        case 0: psw = m_itd->OffsetPSW10;       break;





va009039

0:2b4ea8a138e5


    37

        case 1: psw = m_itd->OffsetPSW10 >> 16; break;





va009039

0:2b4ea8a138e5


    38

        case 2: psw = m_itd->OffsetPSW32;       break;





va009039

0:2b4ea8a138e5


    39

        case 3: psw = m_itd->OffsetPSW32 >> 16; break;





va009039

0:2b4ea8a138e5


    40

        case 4: psw = m_itd->OffsetPSW54;       break;





va009039

0:2b4ea8a138e5


    41

        case 5: psw = m_itd->OffsetPSW54 >> 16; break;





va009039

0:2b4ea8a138e5


    42

        case 6: psw = m_itd->OffsetPSW76;       break;





va009039

0:2b4ea8a138e5


    43

        case 7: psw = m_itd->OffsetPSW76 >> 16; break;





va009039

0:2b4ea8a138e5


    44

    }





va009039

0:2b4ea8a138e5


    45

    return psw;





va009039

0:2b4ea8a138e5


    46

}





va009039

0:2b4ea8a138e5


    47







va009039

0:2b4ea8a138e5


    48

uint16_t usb_itd::StartingFrame()





va009039

0:2b4ea8a138e5


    49

{





va009039

0:2b4ea8a138e5


    50

    return (m_itd->Control & ITD_SF);





va009039

0:2b4ea8a138e5


    51

}





va009039

0:2b4ea8a138e5


    52







va009039

0:2b4ea8a138e5


    53

int usb_itd::FrameCount()





va009039

0:2b4ea8a138e5


    54

{





va009039

0:2b4ea8a138e5


    55

    DBG_ASSERT(m_itd);





va009039

0:2b4ea8a138e5


    56

    int fc = ((m_itd->Control & ITD_FC) >> 24) + 1;





va009039

0:2b4ea8a138e5


    57

    DBG_ASSERT(fc >= 1 && fc <= 8); 





va009039

0:2b4ea8a138e5


    58

    return fc; 





va009039

0:2b4ea8a138e5


    59

}





va009039

0:2b4ea8a138e5


    60







va009039

0:2b4ea8a138e5


    61

int usb_itd::PacketStatus(int n)





va009039

0:2b4ea8a138e5


    62

{





va009039

0:2b4ea8a138e5


    63

    DBG_ASSERT(n >=0 && n <= 7);





va009039

0:2b4ea8a138e5


    64

    uint16_t psw = get_psw(n);





va009039

0:2b4ea8a138e5


    65

    int cc = (psw >> 12) & 0xf;





va009039

0:2b4ea8a138e5


    66

    return cc;





va009039

0:2b4ea8a138e5


    67

}





va009039

0:2b4ea8a138e5


    68







va009039

0:2b4ea8a138e5


    69

int usb_itd::Length(int n)





va009039

0:2b4ea8a138e5


    70

{





va009039

0:2b4ea8a138e5


    71

    DBG_ASSERT(n >=0 && n <= 7);





va009039

0:2b4ea8a138e5


    72

    uint16_t psw = get_psw(n);





va009039

0:2b4ea8a138e5


    73

    int size = psw & 0x7ff;





va009039

0:2b4ea8a138e5


    74

    int cc = (psw >> 12) & 0xf;





va009039

0:2b4ea8a138e5


    75

    if (cc == 0xe || cc == 0xf) {





va009039

0:2b4ea8a138e5


    76

        return -1;





va009039

0:2b4ea8a138e5


    77

    }





va009039

0:2b4ea8a138e5


    78

    if (cc == 0 || cc == 9) {





va009039

0:2b4ea8a138e5


    79

        return size;





va009039

0:2b4ea8a138e5


    80

    }





va009039

0:2b4ea8a138e5


    81

    debug();





va009039

0:2b4ea8a138e5


    82

    return -1;





va009039

0:2b4ea8a138e5


    83

}





va009039

0:2b4ea8a138e5


    84







va009039

0:2b4ea8a138e5


    85

uint8_t* usb_itd::BufferPage(int n, int size)





va009039

0:2b4ea8a138e5


    86

{





va009039

0:2b4ea8a138e5


    87

    DBG_ASSERT(n >=0 && n <= 7);





va009039

0:2b4ea8a138e5


    88

    DBG_ASSERT(size >= 128 && size <= 956);





va009039

0:2b4ea8a138e5


    89

    uint8_t* buf = (uint8_t*)m_itd->BufferPage0 + n * size;





va009039

0:2b4ea8a138e5


    90

    DBG_ASSERT((uint32_t)(buf+size-1) <= m_itd->BufferEnd);





va009039

0:2b4ea8a138e5


    91

    return buf;





va009039

0:2b4ea8a138e5


    92

}





va009039

0:2b4ea8a138e5


    93







va009039

0:2b4ea8a138e5


    94

void usb_itd::free()





va009039

0:2b4ea8a138e5


    95

{





va009039

0:2b4ea8a138e5


    96

    DBG_ASSERT(m_itd);





va009039

0:2b4ea8a138e5


    97

    if (m_itd) {





va009039

0:2b4ea8a138e5


    98

        uint8_t* buf = (uint8_t*)m_itd->BufferPage0;





va009039

0:2b4ea8a138e5


    99

        DBG_ASSERT(buf);





va009039

0:2b4ea8a138e5


   100

        usb_free_bp(buf);





va009039

0:2b4ea8a138e5


   101

        usb_free_itd((byte*)m_itd);





va009039

0:2b4ea8a138e5


   102

        m_itd = NULL;





va009039

0:2b4ea8a138e5


   103

    }





va009039

0:2b4ea8a138e5


   104

}





va009039

0:2b4ea8a138e5


   105







va009039

0:2b4ea8a138e5


   106

void usb_itd::debug()





va009039

0:2b4ea8a138e5


   107

{





va009039

0:2b4ea8a138e5


   108

    DBG("itd             =%08X\n", m_itd);





va009039

0:2b4ea8a138e5


   109

    DBG("itd->Control    =%08X\n", m_itd->Control);





va009039

0:2b4ea8a138e5


   110

    DBG("itd->BufferPage0=%08X\n", m_itd->BufferPage0); 





va009039

0:2b4ea8a138e5


   111

    DBG("itd->Next       =%08X\n", m_itd->Next); 





va009039

0:2b4ea8a138e5


   112

    DBG("itd->BufferEnd  =%08X\n", m_itd->BufferEnd); 





va009039

0:2b4ea8a138e5


   113

    DBG("itd->OffsetPSW10=%08X\n", m_itd->OffsetPSW10);





va009039

0:2b4ea8a138e5


   114

    DBG("itd->OffsetPSW32=%08X\n", m_itd->OffsetPSW32);





va009039

0:2b4ea8a138e5


   115

    DBG("itd->OffsetPSW54=%08X\n", m_itd->OffsetPSW54);





va009039

0:2b4ea8a138e5


   116

    DBG("itd->OffsetPSW76=%08X\n", m_itd->OffsetPSW76);





va009039

0:2b4ea8a138e5


   117

}