[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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[219] | 12 | #include <stdio.h> |
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[209] | 13 | |
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| 14 | Image::Image( char *name, int p_readOnly, int p_drive ) |
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| 15 | { |
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| 16 | } |
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| 17 | |
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| 18 | Image::Image( char *name, int p_readOnly, int p_drive, int p_create, unsigned long p_lba ) |
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| 19 | { |
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| 20 | } |
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| 21 | |
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[217] | 22 | 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] | 23 | { |
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| 24 | } |
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| 25 | |
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[217] | 26 | 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] | 27 | { |
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[217] | 28 | double sizef; |
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| 29 | |
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[209] | 30 | for( char *c = shortFileName = name; *c; c++ ) |
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| 31 | if( *c == '\\' || *c == '/' || *c == ':' ) |
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| 32 | shortFileName = c+1; |
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| 33 | |
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| 34 | if( *(shortFileName) == 0 ) |
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[211] | 35 | { |
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| 36 | log( 1, "Can't parse '%s' for short file name\n\n", name ); |
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| 37 | shortFileName = "SerDrive"; |
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| 38 | } |
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[209] | 39 | |
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| 40 | readOnly = p_readOnly; |
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| 41 | drive = p_drive; |
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[217] | 42 | |
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| 43 | if( totallba > 0xfffffff ) // lba28 limit - 28 bits |
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| 44 | log( -1, "'%s', Image size larger than LBA28 maximum of 137,438,952,960 bytes, %lu", name, totallba ); |
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| 45 | |
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| 46 | if( totallba == 0 ) |
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| 47 | log( -1, "'%s', Image size zero?" ); |
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| 48 | |
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| 49 | if( p_useCHS ) |
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| 50 | { |
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| 51 | if( p_cyl ) |
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| 52 | { |
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| 53 | if( p_sect > 63 || (p_head > 16 || p_head < 1) || (p_cyl > 1024 || p_cyl < 1) ) |
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| 54 | 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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| 55 | else if( totallba != (p_sect * p_head * p_cyl) ) |
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| 56 | log( -1, "'%s', file size does not match geometry", name ); |
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| 57 | sect = p_sect; |
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| 58 | head = p_head; |
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| 59 | cyl = p_cyl; |
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| 60 | } |
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| 61 | else |
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| 62 | { |
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| 63 | if( (totallba % 16) != 0 || ((totallba/16) % 63) != 0 ) |
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| 64 | 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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| 65 | else |
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| 66 | { |
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| 67 | sect = 63; |
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| 68 | head = 16; |
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| 69 | cyl = (totallba / sect / head); |
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| 70 | if( cyl > 1024 ) |
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| 71 | 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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| 72 | } |
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| 73 | } |
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| 74 | } |
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| 75 | else |
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| 76 | { |
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| 77 | sect = 0; |
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| 78 | head = 0; |
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| 79 | cyl = 0; |
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| 80 | } |
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| 81 | useCHS = p_useCHS; |
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| 82 | |
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| 83 | sizef = totallba/2048.0; |
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| 84 | if( useCHS ) |
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[219] | 85 | log( 0, "Opening '%s', CHS geometry %u:%u:%u, total LBA %lu, total size %.1lf MB", name, cyl, sect, head, totallba, sizef ); |
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[217] | 86 | else |
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[219] | 87 | log( 0, "Opening '%s', total LBA %lu, total size %.1lf MB", name, totallba, sizef ); |
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[209] | 88 | } |
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| 89 | |
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[217] | 90 | int Image::parseGeometry( char *str, unsigned long *p_cyl, unsigned long *p_head, unsigned long *p_sect ) |
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[209] | 91 | { |
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| 92 | char *c, *s, *h; |
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| 93 | unsigned long cyl, sect, head; |
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| 94 | |
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| 95 | c = str; |
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[217] | 96 | for( h = c; *h && *h != ':' && *h != 'x' && *h != 'X'; h++ ) ; |
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| 97 | if( !*h ) |
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| 98 | return( 0 ); |
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| 99 | |
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| 100 | *h = '\0'; |
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| 101 | h++; |
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| 102 | for( s = h+1; *s && *s != ':' && *s != 'x' && *s != 'X'; s++ ) ; |
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[209] | 103 | if( !*s ) |
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| 104 | return( 0 ); |
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| 105 | |
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| 106 | *s = '\0'; |
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| 107 | s++; |
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| 108 | |
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| 109 | cyl = atol(c); |
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[217] | 110 | head = atol(h); |
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[209] | 111 | sect = atol(s); |
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| 112 | |
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| 113 | if( cyl == 0 || sect == 0 || head == 0 ) |
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| 114 | return( 0 ); |
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| 115 | |
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| 116 | *p_cyl = cyl; |
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[217] | 117 | *p_head = head; |
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[209] | 118 | *p_sect = sect; |
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| 119 | |
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| 120 | return( 1 ); |
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| 121 | } |
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| 122 | |
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| 123 | #define ATA_wGenCfg 0 |
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| 124 | #define ATA_wCylCnt 1 |
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| 125 | #define ATA_wHeadCnt 3 |
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| 126 | #define ATA_wBpTrck 4 |
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| 127 | #define ATA_wBpSect 5 |
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| 128 | #define ATA_wSPT 6 |
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| 129 | #define ATA_strSerial 10 |
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| 130 | #define ATA_strFirmware 23 |
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| 131 | #define ATA_strModel 27 |
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| 132 | #define ATA_wCaps 49 |
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| 133 | #define ATA_wCurCyls 54 |
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| 134 | #define ATA_wCurHeads 55 |
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| 135 | #define ATA_wCurSPT 56 |
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| 136 | #define ATA_dwCurSCnt 57 |
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| 137 | #define ATA_dwLBACnt 60 |
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| 138 | |
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[233] | 139 | #define ATA_wVendor 159 |
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[209] | 140 | |
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| 141 | #define ATA_wCaps_LBA 0x200 |
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| 142 | |
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| 143 | #define ATA_wGenCfg_FIXED 0x40 |
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| 144 | |
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| 145 | struct comPorts { |
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| 146 | unsigned long port; |
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| 147 | unsigned char com; |
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| 148 | }; |
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| 149 | struct comPorts supportedComPorts[] = |
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| 150 | { |
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| 151 | { 0x3f8, '1' }, |
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| 152 | { 0x2f8, '2' }, |
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| 153 | { 0x3e8, '3' }, |
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| 154 | { 0x2e8, '4' }, |
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| 155 | { 0x2f0, '5' }, |
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| 156 | { 0x3e0, '6' }, |
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| 157 | { 0x2e0, '7' }, |
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| 158 | { 0x260, '8' }, |
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| 159 | { 0x368, '9' }, |
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| 160 | { 0x268, 'A' }, |
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| 161 | { 0x360, 'B' }, |
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| 162 | { 0x270, 'C' }, |
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| 163 | { 0, 0 } |
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| 164 | }; |
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| 165 | |
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[233] | 166 | void Image::respondInquire( unsigned short *buff, struct baudRate *baudRate, unsigned short port, unsigned char scan ) |
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[209] | 167 | { |
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[233] | 168 | memset( &buff[0], 0, 514 ); |
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[209] | 169 | |
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[233] | 170 | if( scan ) |
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[209] | 171 | { |
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[233] | 172 | unsigned short comPort = 0; |
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| 173 | struct comPorts *cp; |
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| 174 | |
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| 175 | if( port ) |
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| 176 | { |
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| 177 | for( cp = supportedComPorts; cp->port && cp->port != port; cp++ ) ; |
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| 178 | if( cp->port ) |
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| 179 | comPort = cp->com; |
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| 180 | } |
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| 181 | |
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| 182 | if( comPort ) |
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| 183 | sprintf( (char *) &buff[ATA_strModel], "%.15s (COM%c/%s)", shortFileName, comPort, baudRate->display ); |
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| 184 | else |
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| 185 | sprintf( (char *) &buff[ATA_strModel], "%.25s (%s baud)", shortFileName, baudRate->display ); |
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[209] | 186 | } |
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| 187 | else |
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[233] | 188 | sprintf( (char *) &buff[ATA_strModel], "%.30s", shortFileName ); |
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[209] | 189 | |
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| 190 | strncpy( (char *) &buff[ATA_strSerial], "serial", 20 ); |
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| 191 | strncpy( (char *) &buff[ATA_strFirmware], "firmw", 8 ); |
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| 192 | |
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| 193 | for( int t = ATA_strModel; t < ATA_strModel+40; t++ ) |
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| 194 | buff[t] = (buff[t] >> 8) | (buff[t] << 8); |
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| 195 | |
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[217] | 196 | if( useCHS ) |
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| 197 | { |
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| 198 | buff[ ATA_wCylCnt ] = cyl; |
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| 199 | buff[ ATA_wHeadCnt ] = head; |
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| 200 | buff[ ATA_wSPT ] = sect; |
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| 201 | } |
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| 202 | else |
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| 203 | { |
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| 204 | buff[ ATA_wCaps ] = ATA_wCaps_LBA; |
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| 205 | buff[ ATA_dwLBACnt ] = (unsigned short) (totallba & 0xffff); |
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| 206 | buff[ ATA_dwLBACnt+1 ] = (unsigned short) (totallba >> 16); |
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| 207 | } |
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| 208 | |
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[209] | 209 | buff[ ATA_wGenCfg ] = ATA_wGenCfg_FIXED; |
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| 210 | // buff[ ATA_VendorSpecific_ReturnPortBaud ] = retWord; |
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| 211 | } |
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