[209] | 1 | //====================================================================== |
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| 2 | // |
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| 3 | // Project: XTIDE Universal BIOS, Serial Port Server |
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| 4 | // |
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| 5 | // File: image.cpp - Abstract base class for disk image support |
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| 6 | // |
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| 7 | |
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| 8 | #include "library.h" |
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| 9 | #include <memory.h> |
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| 10 | #include <stdlib.h> |
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| 11 | #include <string.h> |
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| 12 | |
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| 13 | Image::Image( char *name, int p_readOnly, int p_drive ) |
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| 14 | { |
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| 15 | } |
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| 16 | |
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| 17 | Image::Image( char *name, int p_readOnly, int p_drive, int p_create, unsigned long p_lba ) |
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| 18 | { |
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| 19 | } |
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| 20 | |
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[217] | 21 | Image::Image( char *name, int p_readOnly, int p_drive, int p_create, unsigned long p_cyl, unsigned long p_head, unsigned long p_sect, int p_useCHS ) |
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[209] | 22 | { |
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| 23 | } |
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| 24 | |
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[217] | 25 | void Image::init( char *name, int p_readOnly, int p_drive, unsigned long p_cyl, unsigned long p_head, unsigned long p_sect, int p_useCHS ) |
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[209] | 26 | { |
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[217] | 27 | double sizef; |
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| 28 | |
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[209] | 29 | for( char *c = shortFileName = name; *c; c++ ) |
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| 30 | if( *c == '\\' || *c == '/' || *c == ':' ) |
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| 31 | shortFileName = c+1; |
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| 32 | |
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| 33 | if( *(shortFileName) == 0 ) |
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[211] | 34 | { |
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| 35 | log( 1, "Can't parse '%s' for short file name\n\n", name ); |
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| 36 | shortFileName = "SerDrive"; |
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| 37 | } |
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[209] | 38 | |
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| 39 | readOnly = p_readOnly; |
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| 40 | drive = p_drive; |
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[217] | 41 | |
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| 42 | if( totallba > 0xfffffff ) // lba28 limit - 28 bits |
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| 43 | log( -1, "'%s', Image size larger than LBA28 maximum of 137,438,952,960 bytes, %lu", name, totallba ); |
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| 44 | |
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| 45 | if( totallba == 0 ) |
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| 46 | log( -1, "'%s', Image size zero?" ); |
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| 47 | |
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| 48 | if( p_useCHS ) |
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| 49 | { |
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| 50 | if( p_cyl ) |
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| 51 | { |
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| 52 | if( p_sect > 63 || (p_head > 16 || p_head < 1) || (p_cyl > 1024 || p_cyl < 1) ) |
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| 53 | log( -1, "'%s', parts of the CHS geometry (%lu:%lu:%lu) are out of the range (1-1024:1-16:1-63)", name, p_cyl, p_head, p_sect ); |
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| 54 | else if( totallba != (p_sect * p_head * p_cyl) ) |
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| 55 | log( -1, "'%s', file size does not match geometry", name ); |
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| 56 | sect = p_sect; |
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| 57 | head = p_head; |
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| 58 | cyl = p_cyl; |
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| 59 | } |
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| 60 | else |
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| 61 | { |
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| 62 | if( (totallba % 16) != 0 || ((totallba/16) % 63) != 0 ) |
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| 63 | log( -1, "'%s', file size does not match standard CHS geometry (x:16:63), please specify geometry explicitly with -g", name ); |
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| 64 | else |
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| 65 | { |
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| 66 | sect = 63; |
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| 67 | head = 16; |
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| 68 | cyl = (totallba / sect / head); |
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| 69 | if( cyl > 1024 ) |
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| 70 | log( -1, "'%s', CHS geometry of %lu:%lu:%lu is larger than maximum values 1024:16:63", name, cyl, head, sect ); |
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| 71 | } |
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| 72 | } |
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| 73 | } |
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| 74 | else |
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| 75 | { |
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| 76 | sect = 0; |
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| 77 | head = 0; |
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| 78 | cyl = 0; |
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| 79 | } |
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| 80 | useCHS = p_useCHS; |
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| 81 | |
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| 82 | sizef = totallba/2048.0; |
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| 83 | if( useCHS ) |
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| 84 | log( 0, "Opening '%s', CHS geometry %u:%u:%u, total size %.1lf MB", name, cyl, sect, head, sizef ); |
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| 85 | else |
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| 86 | log( 0, "Opening '%s', total lba %lu, total size %.1lf MB", name, totallba, sizef ); |
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[209] | 87 | } |
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| 88 | |
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[217] | 89 | int Image::parseGeometry( char *str, unsigned long *p_cyl, unsigned long *p_head, unsigned long *p_sect ) |
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[209] | 90 | { |
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| 91 | char *c, *s, *h; |
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| 92 | unsigned long cyl, sect, head; |
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| 93 | |
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| 94 | c = str; |
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[217] | 95 | for( h = c; *h && *h != ':' && *h != 'x' && *h != 'X'; h++ ) ; |
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| 96 | if( !*h ) |
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| 97 | return( 0 ); |
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| 98 | |
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| 99 | *h = '\0'; |
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| 100 | h++; |
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| 101 | for( s = h+1; *s && *s != ':' && *s != 'x' && *s != 'X'; s++ ) ; |
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[209] | 102 | if( !*s ) |
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| 103 | return( 0 ); |
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| 104 | |
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| 105 | *s = '\0'; |
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| 106 | s++; |
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| 107 | |
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| 108 | cyl = atol(c); |
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[217] | 109 | head = atol(h); |
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[209] | 110 | sect = atol(s); |
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| 111 | |
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| 112 | if( cyl == 0 || sect == 0 || head == 0 ) |
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| 113 | return( 0 ); |
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| 114 | |
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| 115 | *p_cyl = cyl; |
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[217] | 116 | *p_head = head; |
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[209] | 117 | *p_sect = sect; |
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| 118 | |
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| 119 | return( 1 ); |
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| 120 | } |
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| 121 | |
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| 122 | #define ATA_wGenCfg 0 |
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| 123 | #define ATA_wCylCnt 1 |
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| 124 | #define ATA_wHeadCnt 3 |
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| 125 | #define ATA_wBpTrck 4 |
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| 126 | #define ATA_wBpSect 5 |
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| 127 | #define ATA_wSPT 6 |
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| 128 | #define ATA_strSerial 10 |
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| 129 | #define ATA_strFirmware 23 |
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| 130 | #define ATA_strModel 27 |
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| 131 | #define ATA_wCaps 49 |
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| 132 | #define ATA_wCurCyls 54 |
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| 133 | #define ATA_wCurHeads 55 |
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| 134 | #define ATA_wCurSPT 56 |
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| 135 | #define ATA_dwCurSCnt 57 |
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| 136 | #define ATA_dwLBACnt 60 |
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| 137 | |
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| 138 | #define ATA_VendorSpecific_ReturnPortBaud 158 |
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| 139 | |
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| 140 | #define ATA_wCaps_LBA 0x200 |
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| 141 | |
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| 142 | #define ATA_wGenCfg_FIXED 0x40 |
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| 143 | |
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| 144 | struct comPorts { |
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| 145 | unsigned long port; |
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| 146 | unsigned char com; |
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| 147 | }; |
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| 148 | struct comPorts supportedComPorts[] = |
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| 149 | { |
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| 150 | { 0x3f8, '1' }, |
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| 151 | { 0x2f8, '2' }, |
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| 152 | { 0x3e8, '3' }, |
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| 153 | { 0x2e8, '4' }, |
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| 154 | { 0x2f0, '5' }, |
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| 155 | { 0x3e0, '6' }, |
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| 156 | { 0x2e0, '7' }, |
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| 157 | { 0x260, '8' }, |
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| 158 | { 0x368, '9' }, |
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| 159 | { 0x268, 'A' }, |
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| 160 | { 0x360, 'B' }, |
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| 161 | { 0x270, 'C' }, |
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| 162 | { 0, 0 } |
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| 163 | }; |
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| 164 | |
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| 165 | void Image::respondInquire( unsigned short *buff, struct baudRate *baudRate, unsigned char portAndBaud ) |
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| 166 | { |
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| 167 | unsigned short comPort = 0; |
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| 168 | struct comPorts *cp; |
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| 169 | |
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| 170 | if( portAndBaud ) |
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| 171 | { |
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| 172 | for( cp = supportedComPorts; cp->port && cp->port != ((portAndBaud << 3) + 0x260); cp++ ) ; |
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| 173 | if( cp->port ) |
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| 174 | comPort = cp->com; |
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| 175 | } |
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| 176 | |
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| 177 | memset( &buff[0], 0, 514 ); |
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| 178 | |
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| 179 | if( comPort ) |
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| 180 | sprintf( (char *) &buff[ATA_strModel], "%.20s (COM%d/%s)", shortFileName, comPort, baudRate->display ); |
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| 181 | else |
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| 182 | sprintf( (char *) &buff[ATA_strModel], "%.30s (%s baud)", shortFileName, baudRate->display ); |
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| 183 | |
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| 184 | // strncpy( (char *) &buff[ATA_strModel], img->shortFileName, 40 ); |
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| 185 | |
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| 186 | strncpy( (char *) &buff[ATA_strSerial], "serial", 20 ); |
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| 187 | strncpy( (char *) &buff[ATA_strFirmware], "firmw", 8 ); |
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| 188 | |
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| 189 | for( int t = ATA_strModel; t < ATA_strModel+40; t++ ) |
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| 190 | buff[t] = (buff[t] >> 8) | (buff[t] << 8); |
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| 191 | |
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[217] | 192 | if( useCHS ) |
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| 193 | { |
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| 194 | buff[ ATA_wCylCnt ] = cyl; |
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| 195 | buff[ ATA_wHeadCnt ] = head; |
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| 196 | buff[ ATA_wSPT ] = sect; |
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| 197 | } |
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| 198 | else |
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| 199 | { |
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| 200 | buff[ ATA_wCaps ] = ATA_wCaps_LBA; |
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| 201 | buff[ ATA_dwLBACnt ] = (unsigned short) (totallba & 0xffff); |
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| 202 | buff[ ATA_dwLBACnt+1 ] = (unsigned short) (totallba >> 16); |
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| 203 | } |
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| 204 | |
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[209] | 205 | buff[ ATA_wGenCfg ] = ATA_wGenCfg_FIXED; |
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| 206 | // buff[ ATA_VendorSpecific_ReturnPortBaud ] = retWord; |
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| 207 | } |
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