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: Win32Serial.cpp - Microsoft Windows serial code |
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6 | // |
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7 | // Support for the serial port under Win32. |
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8 | // |
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9 | |
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10 | #include <stdio.h> |
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11 | |
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12 | #include "..\library\library.h" |
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13 | #include "Win32Serial.h" |
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14 | |
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15 | COMMTIMEOUTS timeouts; |
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16 | |
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17 | DCB dcb; |
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18 | |
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19 | Win32Serial::~Win32Serial() |
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20 | { |
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21 | if( pipe ) |
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22 | CloseHandle( pipe ); |
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23 | |
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24 | pipe = NULL; |
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25 | } |
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26 | |
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27 | Win32Serial::Win32Serial( char *name, struct baudRate *baudRate ) : Serial( name, baudRate ) |
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28 | { |
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29 | char buff1[20], buff2[1024]; |
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30 | |
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31 | pipe = NULL; |
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32 | |
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33 | if( !name ) |
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34 | { |
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35 | for( int t = 1; t <= 30 && !name; t++ ) |
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36 | { |
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37 | sprintf( buff1, "COM%d", t ); |
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38 | if( QueryDosDeviceA( buff1, buff2, sizeof(buff2) ) ) |
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39 | name = buff1; |
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40 | } |
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41 | if( !name ) |
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42 | log( 0, "No Physical COM Ports Found" ); |
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43 | } |
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44 | |
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45 | if( !strcmp( name, "PIPE" ) ) |
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46 | { |
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47 | log( 1, "Opening named pipe %s (simulating %lu baud)", PIPENAME, baudRate->rate ); |
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48 | |
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49 | pipe = CreateNamedPipeA( PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE|PIPE_REJECT_REMOTE_CLIENTS, 2, 1024, 1024, 0, NULL ); |
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50 | if( !pipe ) |
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51 | log( 0, "Could not CreateNamedPipe " PIPENAME ); |
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52 | |
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53 | if( !ConnectNamedPipe( pipe, NULL ) ) |
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54 | log( 0, "Could not ConnectNamedPipe" ); |
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55 | |
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56 | speedEmulation = 1; |
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57 | resetConnection = 1; |
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58 | } |
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59 | else |
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60 | { |
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61 | if( QueryDosDeviceA( name, buff2, sizeof(buff2) ) ) |
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62 | { |
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63 | log( 1, "Opening %s (%lu baud)", name, baudRate->rate ); |
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64 | |
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65 | pipe = CreateFileA( name, GENERIC_READ|GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 ); |
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66 | if( !pipe ) |
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67 | log( 0, "Could not Open \"%s\"", name ); |
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68 | |
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69 | FillMemory(&dcb, sizeof(dcb), 0); |
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70 | dcb.DCBlength = sizeof(dcb); |
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71 | dcb.BaudRate = baudRate->rate; |
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72 | dcb.ByteSize = 8; |
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73 | dcb.StopBits = ONESTOPBIT; |
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74 | dcb.Parity = NOPARITY; |
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75 | if( !SetCommState( pipe, &dcb ) ) |
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76 | log( 0, "Could not SetCommState" ); |
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77 | |
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78 | if( !SetCommTimeouts( pipe, &timeouts ) ) |
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79 | log( 0, "Could not SetCommTimeouts" ); |
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80 | } |
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81 | else |
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82 | { |
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83 | int first = 1; |
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84 | char logbuff[ 1024 ]; |
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85 | sprintf( logbuff, "Serial Port Not Found \"%s\", Available: ", name ); |
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86 | for( int t = 1; t <= 30 && !name; t++ ) |
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87 | { |
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88 | sprintf( buff1, "COM%d", t ); |
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89 | if( QueryDosDeviceA( buff1, buff2, sizeof(buff2) ) ) |
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90 | { |
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91 | if( !first ) |
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92 | strcat( logbuff, ", " ); |
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93 | else |
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94 | first = 0; |
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95 | strcat( logbuff, buff1 ); |
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96 | } |
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97 | } |
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98 | log( 0, logbuff ); |
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99 | } |
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100 | } |
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101 | } |
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102 | |
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103 | unsigned long Win32Serial::readCharacters( void *buff, unsigned long len ) |
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104 | { |
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105 | unsigned long readLen; |
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106 | int ret; |
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107 | ret = ReadFile( pipe, buff, len, &readLen, NULL ); |
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108 | return( ret ? readLen : 0 ); |
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109 | } |
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110 | |
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111 | unsigned long Win32Serial::writeCharacters( void *buff, unsigned long len ) |
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112 | { |
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113 | unsigned long writeLen; |
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114 | int ret; |
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115 | ret = WriteFile( pipe, buff, len, &writeLen, NULL ); |
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116 | return( ret ? writeLen : 0 ); |
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117 | } |
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118 | |
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119 | |
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120 | |
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121 | |
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122 | |
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123 | |
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124 | |
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