annotate host/tools/ecostest/common/eCosTestDownloadFilter.cpp @ 103:95f3e12a6327 ecos-sw-2000-06-23

Merge from eCos master repository on 2000-06-23-16:41:10-BST
author jlarmour
date Fri, 23 Jun 2000 17:06:31 +0000
parents c37d3a9e1b28
children 74dbf4c3f2e1
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1 //####COPYRIGHTBEGIN####
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2 //
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3 // ----------------------------------------------------------------------------
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4 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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5 //
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6 // This program is part of the eCos host tools.
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7 //
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8 // This program is free software; you can redistribute it and/or modify it
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9 // under the terms of the GNU General Public License as published by the Free
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10 // Software Foundation; either version 2 of the License, or (at your option)
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11 // any later version.
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12 //
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13 // This program is distributed in the hope that it will be useful, but WITHOUT
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14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 // more details.
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17 //
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18 // You should have received a copy of the GNU General Public License along with
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19 // this program; if not, write to the Free Software Foundation, Inc.,
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20 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21 //
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22 // ----------------------------------------------------------------------------
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23 //
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24 //####COPYRIGHTEND####
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25 //=================================================================
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26 //
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27 // eCosTestDownloadFilter.cpp
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28 //
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29 // Socket/serial download filter class
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30 //
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31 //=================================================================
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32 //=================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): jskov
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36 // Contributors: jskov
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37 // Date: 1999-09-20
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38
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39 // Description: This filter sits between the (farm) host's socket and
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40
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41 // the serial connection to the target board. The
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42 // filter listens for special download packets from the
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43 // client using the board. The download packet allows
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44 // the relative slow GDB download protocol to be restricted
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45 // to the connection between the farm host and the board.
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46 // This prevents slow downloads due to long round-trip times
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47 // and TCP packets with only a few bytes in them.
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48 // To Do:
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49 // o Move parts shared between eCosTestDownloadFilter and eCosTestSerialFilter
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50 // into a shared class.
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51 //####DESCRIPTIONEND####
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52
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53 #include "eCosStd.h"
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54 #include "eCosTrace.h"
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55
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56 #include "eCosTestDownloadFilter.h"
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57
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58 CeCosTestDownloadFilter::CeCosTestDownloadFilter():
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59 m_bNullFilter(false), m_bOptSerDebug(false), m_bOptFilterTrace(false),
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60 m_nCmdIndex(0), m_bCmdFlag(false), m_bContinueSession(false)
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61 {
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62 }
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63
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64 CeCosTestDownloadFilter::~CeCosTestDownloadFilter()
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65 {
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66 }
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67
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68 //------------------------
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69 // Output helpers.
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70
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71 void
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72 CeCosTestDownloadFilter::ConsoleWrite(const char* pszStr)
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73 {
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74 fputs(pszStr, stderr);
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75 fflush(stderr);
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76 }
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77
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78 void
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79 CeCosTestDownloadFilter::Trace(const char* pszFormat, ...)
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80 {
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81 va_list marker;
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82 va_start (marker, pszFormat);
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83
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84 for(int nLength=100;nLength;) {
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85 char *buf=new char[1+nLength];
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86 int n=vsnprintf(buf+4, nLength-4, pszFormat, marker );
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87 if(-1==n){
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88 nLength*=2; // NT behavior
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89 } else if (n<nLength){
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90 memcpy(buf,"[d] ",4);
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91 ConsoleWrite(buf);
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92 nLength=0; // trigger exit from loop
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93 } else {
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94 nLength=n+1; // UNIX behavior generally, or NT behavior when buffer size exactly matches required length
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95 }
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96 delete [] buf;
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97 }
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98
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99 va_end (marker);
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100 }
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101
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102 void
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103 CeCosTestDownloadFilter::PrintHex(const unsigned char* d1, int len, data_origin_t origin/*=SF_TARGET*/)
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104 {
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105 int offset = 0;
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106 int i;
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107 char buf[128];
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108 int width = 8;
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109
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110 while (len) {
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111 int count = MIN(width, len);
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112 char* p = buf;
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113 switch (origin) {
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114 case SF_TARGET:
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115 p += sprintf(p, "T");
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116 break;
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117 case SF_FILTER:
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118 p += sprintf(p, "F");
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119 break;
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120 }
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121 p += sprintf(p, ":%04x ", offset);
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122 // Print hex values.
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123 for (i = 0; i < count; i++)
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124 p += sprintf(p, "%02x ", d1[i]);
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125 for ( ; i < width ; i++)
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126 p += sprintf(p, ".. ");
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127
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128 // Print ASCII string
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129 p += sprintf(p, "'");
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130 for (i = 0; i < count; i++) {
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131 int c = d1[i];
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132 if (' ' >= c || 'z' <= c)
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133 c = '.';
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134 p += sprintf(p, "%c", c);
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135 }
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136 sprintf(p, "'\n");
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137
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138 Trace("%s", buf);
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139
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140 len -= count;
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141 offset += count;
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142 d1 += count;
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143 }
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144 }
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145
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146 void
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147 CeCosTestDownloadFilter::TargetWrite(CeCosSerial &pSer,
76
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148 const unsigned char* buffer, int len)
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149 {
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150 unsigned int __written;
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151
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152 if (m_bOptSerDebug)
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153 PrintHex(buffer, len, SF_FILTER);
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154
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155 do {
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156 if (!(pSer.Write((void*) buffer, len, __written))) {
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157 fprintf(stderr, "Writing %d bytes to serial failed\n", len);
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158 fprintf(stderr, "%s", (LPCTSTR)pSer.ErrString());
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159 throw _T("serial write failed");
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160 }
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161 buffer += __written;
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162 len -= __written;
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163 } while (len);
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164 }
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165
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166 // Snuffed from gdb/remote.c
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167 int
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168 CeCosTestDownloadFilter::tohex (int nib)
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169 {
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170 if (nib < 10)
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171 return '0'+nib;
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172 else
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173 return 'a'+nib-10;
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174 }
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175
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176 int
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177 CeCosTestDownloadFilter::hexnumstr (unsigned char* buf, unsigned long num)
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178 {
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179 int i;
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180 unsigned long num2 = num;
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181
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182 for (i = 0; num2 != 0; i++)
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183 num2 >>= 4;
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184
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185 int len = MAX (i, 1);
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186
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187 buf[len] = '\0';
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188
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189 for (i = len - 1; i >= 0; i--)
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190 {
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191 buf[i] = "0123456789abcdef" [(num & 0xf)];
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192 num >>= 4;
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193 }
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194
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195 return len;
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196 }
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197
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198 int
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199 CeCosTestDownloadFilter::hexnumlen (unsigned long num)
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200 {
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201 int i;
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202 unsigned long num2 = num;
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203
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204 for (i = 0; num2 != 0; i++)
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205 num2 >>= 4;
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206
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207 return MAX (i, 1);
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208 }
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209
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210 // Based on routines in gdb/remote.c
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211 int
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212 CeCosTestDownloadFilter::put_binary (unsigned char* buf, int len,
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213 unsigned long dl_address,
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214 int packet_size,
82
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215 CeCosSerial& serial)
76
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216 {
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217 int i;
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218 unsigned char csum;
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219 Buffer buf2(packet_size);
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220 unsigned char ch;
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221 int tcount = 0;
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222 unsigned char *p, *p2, *plen;
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223
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224 while (len > 0) {
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225 /* Subtract header overhead from MAX payload size:
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226 $M<memaddr>,<len>:#nn */
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227 int max_buf_size =
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228 buf2.Size()
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229 - ( 2 + hexnumlen(dl_address) + 1 + hexnumlen(buf2.Size()) + 4);
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230
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231 /* Copy the packet into buffer BUF2, encapsulating it
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232 and giving it a checksum. */
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233 int todo = MIN (len, max_buf_size);
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234
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235 p = (unsigned char*) buf2.Data();
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236 *p++ = '$';
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237
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238 // Add X header.
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239 *p++ = 'X';
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240 p += hexnumstr(p, dl_address);
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241 *p++ = ',';
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242 plen = p; /* remember where len field goes */
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243 p += hexnumstr(p, todo);
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244 *p++ = ':';
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245
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246 int escaped = 0;
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247 for (i = 0;
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248 (i < todo) && (i + escaped) < (max_buf_size - 2);
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249 i++)
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250 {
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251 switch (buf[i] & 0xff)
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252 {
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253 case '$':
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254 case '#':
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255 case 0x7d:
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256 /* These must be escaped */
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257 escaped++;
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258 *p++ = 0x7d;
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259 *p++ = (unsigned char) ((buf[i] & 0xff) ^ 0x20);
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260 break;
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261 default:
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262 *p++ = (unsigned char) (buf[i] & 0xff);
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263 break;
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264 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
265 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
266
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
267 if (i < todo)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
268 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
269 /* Escape chars have filled up the buffer prematurely,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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270 and we have actually sent fewer bytes than planned.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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271 Fix-up the length field of the packet. */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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272
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
273 /* FIXME: will fail if new len is a shorter string than
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
274 old len. */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
275
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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276 plen += hexnumstr (plen, i);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
277 *plen++ = ':';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
278 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
279
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
280 // Calculate checksum
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
281 p2 = (unsigned char*)buf2.Data();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
282 p2++; // skip $
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
283 csum = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
284 while (p2 < p)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
285 csum = (unsigned char)(csum + *p2++);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
286 *p++ = '#';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
287 *p++ = (unsigned char) tohex ((csum >> 4) & 0xf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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288 *p++ = (unsigned char) tohex (csum & 0xf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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289
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
290 /* Send it over and over until we get a positive ack. */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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291
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
292 int resend = 1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
293 const unsigned char* write_ptr = (const unsigned char*) buf2.Data();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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294 int write_len = (int)p-(int)buf2.Data();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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295 while (resend)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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296 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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297 unsigned int __written;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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298
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
299 Trace("Sending bytes for %p-%p\n", dl_address, dl_address+i);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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300 TargetWrite(serial, write_ptr, write_len);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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301
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
302 /* read until either a timeout occurs (-2) or '+' is read */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
303 for(;;)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
304 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
305 unsigned int __read;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
306 serial.Read(&ch, 1, __read);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
307
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
308 if (0 == __read) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
309 tcount ++;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
310 if (tcount > 3) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
311 Trace("Timeout in putpkt_binary\n");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
312 return 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
313 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
314 break; /* Retransmit buffer */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
315 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
316
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
317 switch (ch)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
318 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
319 case '+':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
320 // Now expect OK packet from target
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
321 unsigned char ok_msg[6];// $OK#9a
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
322 serial.Read(ok_msg, 6, __read);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
323
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
324 // Reply with ACK
82
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diff changeset
325 serial.Write((void*)"+", 1, __written);
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
326
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
327 // And process next packet.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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328 resend = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
329 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
330
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
331 case '-':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
332 // Bad packet CRC. Retransmit.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
333 Trace ("Bad CRC\n");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
334 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
335
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
336 default:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
337 Trace("Got junk..%02x\n", ch);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
338 continue; // keep reading
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
339 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
340 break; /* Here to retransmit */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
341 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
342 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
343
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
344 len -= i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
345 dl_address += i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
346 buf += i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
347 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
348
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
349 return 1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
350 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
351
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
352 bool CALLBACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
353 DownloadFilterFunction(void*& pBuf,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
354 unsigned int& nRead,
82
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parents: 80
diff changeset
355 CeCosSerial& serial,
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parents: 80
diff changeset
356 CeCosSocket& socket,
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
357 void* pParem)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
358 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
359 CeCosTestDownloadFilter* p = (CeCosTestDownloadFilter*) pParem;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
360 bool res = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
361
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
362 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
363 res = p->FilterFunctionProper(pBuf, nRead, serial, socket);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
364 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
365 catch (LPCTSTR s) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
366 TRACE(_T("Download filter caught string: %s\n"), s);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
367 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
368 catch (...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
369 TRACE(_T("Download filter caught unknown exception\n"));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
370 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
371
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
372 return res;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
373 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
374
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
375 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
376 CeCosTestDownloadFilter::FilterFunctionProper(void*& pBuf,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
377 unsigned int& nRead,
82
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parents: 80
diff changeset
378 CeCosSerial& serial,
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diff changeset
379 CeCosSocket& socket)
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
380 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
381 char* buffer = (char*) pBuf;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
382
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
383 // Assume the worst - don't allow session to continue until a successful
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
384 // download.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
385 m_bContinueSession = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
386
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
387 // Output the serial data if option enabled
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
388 if (m_bOptSerDebug)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
389 PrintHex((unsigned char*) buffer, nRead);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
390
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
391 // Stop here if in NULL-filter mode
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
392 if (m_bNullFilter)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
393 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
394
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
395 // Command handling.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
396 // Be strict here; very first byte we see must be the start marker,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
397 // else go into NULL-filter mode
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
398 unsigned int i = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
399 if (!m_bCmdFlag) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
400 if ('@' != buffer[i]) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
401 m_bNullFilter = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
402 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
403 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
404 m_bCmdFlag = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
405 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
406
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
407 // If reading a command, look for the end marker.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
408 if (m_bCmdFlag) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
409 char c = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
410 while (i < nRead && m_nCmdIndex < MAX_CMD_LEN) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
411 c = buffer[i++];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
412 m_aCmd[m_nCmdIndex++] = c;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
413 if ('!' == c) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
414 if (i != nRead) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
415 throw _T("Extra bytes after command packet!?!");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
416 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
417 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
418 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
419
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
420 if (MAX_CMD_LEN == m_nCmdIndex) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
421 Trace("Received too long command. Ignoring it!\n");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
422 m_nCmdIndex = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
423 m_bCmdFlag = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
424 } else if ('!' == c) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
425 // Was the command completed?
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
426 m_aCmd[m_nCmdIndex - 1] = 0;// terminate cmd
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
427 m_nCmdIndex = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
428 m_bCmdFlag = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
429 // command now in m_aCmd[]
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
430
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
431 Trace("Got command %s\n", m_aCmd);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
432
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
433 // After this, never interfere.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
434 m_bNullFilter = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
435
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
436 // Get arguments: @<length>:<dl_address>:<start_address>!
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
437 int length, packet_size;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
438 unsigned long dl_addr, start_addr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
439 INIT_VALUE(&m_aCmd[1]);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
440 SET_VALUE(int, length);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
441 SET_VALUE(unsigned long, dl_addr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
442 SET_VALUE(unsigned long, start_addr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
443 SET_VALUE(int, packet_size);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
444
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
445 Trace("len %d, dl %08x, start %08x, packet_size %d\n",
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
446 length, dl_addr, start_addr, packet_size);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
447
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
448 // Reply so host will send file.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
449 socket.send("@", 1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
450
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
451 // Read file from host
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
452 Buffer buf(length);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
453 if (socket.recv(buf.Data(), length)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
454
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
455 // Remember old blocking state, and set serial to
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
456 // blocking reads.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
457 bool __blocking = serial.GetBlockingReads();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
458 serial.SetBlockingReads(true);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
459 serial.Flush();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
460
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
461 // Send + to target, acking whatever packet was pending
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
462 unsigned int __written = 0;
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
463 serial.Write((void*)"+", 1, __written);
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
464
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
465 // Convert to packets and transfer to target.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
466 if (put_binary((unsigned char*) buf.Data(),
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
467 length, dl_addr, packet_size, serial)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
468 // Send detach signal to target
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
469 unsigned char ch;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
470 unsigned int __read;
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
471 serial.Write((void*)"$D#44", 5, __written);
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
472 serial.Read(&ch, 1, __read);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
473
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
474 // Reply to host marking end of download
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
475 socket.send("+", 1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
476
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
477 // Let server know it's OK to accept another connection
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
478 // in this session.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
479 m_bContinueSession = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
480 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
481 // Reply to host marking failed download
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
482 socket.send("-", 1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
483 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
484
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
485 // Reset previous blocking mode
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
486 serial.SetBlockingReads(__blocking);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
487
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
488 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
489 // Reply to host marking failed file transfer
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
490 socket.send("?", 1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
491 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
492 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
493 nRead = 0; // Never leave anything for caller
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
494 // This is a violation of the intended
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
495 // filter function behavior.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
496 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
497 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
498 }