FreeCalypso > hg > freecalypso-reveng
annotate frbl/test/frbl2.c @ 401:4b6b595ae0a0
compal/boot/code-deriv: new analysis
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 14 Jan 2023 23:59:23 +0000 |
parents | 10d62a3bfeec |
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rev | line source |
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1 #include <sys/types.h> |
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2 #include <sys/ioctl.h> |
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3 #include <sys/time.h> |
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4 #include <sys/errno.h> |
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5 #include <ctype.h> |
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6 #include <stdint.h> |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 #include <termios.h> |
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12 #include <unistd.h> |
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13 #include "srecreader.h" |
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14 |
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15 extern int errno; |
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16 |
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17 extern char *target_ttydev; |
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18 extern int target_fd; |
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19 extern struct srecreader srimage; |
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20 |
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21 #define MAX_IMAGE_LEN 32768 |
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22 |
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23 static u_char codeimage[MAX_IMAGE_LEN]; |
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24 static unsigned codeimage_len; |
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25 static uint32_t loadaddr; |
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26 |
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27 static u_char beacon_cmd[3] = {0xAA, 0x01, 0xDD}; |
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28 static u_char fluid_baudrate_cmd[2] = {0x00, 0x07}; |
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29 static u_char fluid_version_cmd[1] = {'V'}; |
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30 static u_char fluid_chipquery_cmd[2] = {'Q', 'C'}; |
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31 static u_char fluid_download_cmd[7] = {'L'}; |
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32 |
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33 #define BEACON_INTERVAL 13 /* ms between beacons */ |
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34 #define INTERMEDIATE_TIMEOUT 500 /* ms to wait for responses */ |
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35 #define SERIAL_FLUSH_DELAY 200 /* also in ms */ |
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36 |
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37 read_srec_image() |
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38 { |
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39 u_char *writep; |
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40 uint32_t endaddr; |
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41 int i; |
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42 |
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43 if (open_srec_file(&srimage) < 0) |
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44 exit(1); |
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45 for (;;) { |
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46 if (read_s_record(&srimage) < 0) |
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47 exit(1); |
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48 switch (srimage.record_type) { |
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49 case '0': |
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50 if (srimage.lineno == 1) |
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51 continue; |
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52 fprintf(stderr, |
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53 "%s: S0 record found in line %d (expected in line 1 only)\n", |
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54 srimage.filename, srimage.lineno); |
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55 exit(1); |
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56 case '3': |
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57 case '7': |
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58 if (s3s7_get_addr_data(&srimage) < 0) |
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59 exit(1); |
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60 break; |
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61 default: |
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62 fprintf(stderr, |
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63 "%s line %d: S%c record type not supported\n", |
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64 srimage.filename, srimage.lineno, |
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65 srimage.record_type); |
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66 exit(1); |
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67 } |
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68 if (srimage.record_type == '7') |
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69 break; |
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70 /* must be S3 */ |
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71 if (srimage.datalen < 1) { |
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72 fprintf(stderr, |
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73 "%s line %d: S3 record has zero data length\n", |
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74 srimage.filename, srimage.lineno); |
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75 exit(1); |
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76 } |
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77 if (srimage.datalen & 1) { |
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78 fprintf(stderr, |
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79 "%s line %d: S3 record has odd data length\n", |
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80 srimage.filename, srimage.lineno); |
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81 exit(1); |
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82 } |
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83 if (srimage.addr & 1) { |
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84 fprintf(stderr, |
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85 "%s line %d: S3 record has odd address\n", |
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86 srimage.filename, srimage.lineno); |
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87 exit(1); |
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88 } |
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89 /* handle first record */ |
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90 if (!codeimage_len) { |
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91 endaddr = loadaddr = srimage.addr; |
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92 writep = codeimage; |
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93 } |
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94 if (srimage.addr != endaddr) { |
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95 fprintf(stderr, "%s line %d: address discontinuity\n", |
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96 srimage.filename, srimage.lineno); |
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97 exit(1); |
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98 } |
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99 if (codeimage_len + srimage.datalen > MAX_IMAGE_LEN) { |
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100 fprintf(stderr, |
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101 "%s line %d: max image length exceeded\n", |
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102 srimage.filename, srimage.lineno); |
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103 exit(1); |
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104 } |
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105 /* reverse byte order */ |
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106 for (i = 0; i < srimage.datalen; i += 2) { |
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107 *writep++ = srimage.record[i+6]; |
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108 *writep++ = srimage.record[i+5]; |
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109 } |
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110 endaddr += srimage.datalen; |
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111 codeimage_len += srimage.datalen; |
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112 } |
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113 /* got S7 */ |
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114 fclose(srimage.openfile); |
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115 if (!codeimage_len) { |
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116 fprintf(stderr, |
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117 "%s line %d: S7 without any preceding S3 data records\n", |
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118 srimage.filename, srimage.lineno); |
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119 exit(1); |
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120 } |
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121 if (srimage.addr != loadaddr) { |
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122 fprintf(stderr, |
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123 "%s line %d: S7 address differs from image load address\n", |
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124 srimage.filename, srimage.lineno); |
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125 exit(1); |
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126 } |
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127 /* all good */ |
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128 return(0); |
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129 } |
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130 |
324
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131 static void |
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132 fill_download_cmd() |
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133 { |
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134 unsigned nwords; |
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135 |
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136 nwords = codeimage_len >> 1; |
335
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137 fluid_download_cmd[1] = loadaddr; |
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138 fluid_download_cmd[2] = loadaddr >> 8; |
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139 fluid_download_cmd[3] = loadaddr >> 16; |
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140 fluid_download_cmd[4] = loadaddr >> 24; |
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141 fluid_download_cmd[5] = nwords; |
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142 fluid_download_cmd[6] = nwords >> 8; |
324
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143 } |
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144 |
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145 static int |
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146 expect_beacon_response(timeout) |
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147 { |
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148 u_char buf; |
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149 fd_set fds; |
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150 struct timeval tv; |
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151 int cc; |
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152 |
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153 for (;;) { |
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154 FD_ZERO(&fds); |
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155 FD_SET(target_fd, &fds); |
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156 tv.tv_sec = 0; |
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157 tv.tv_usec = timeout * 1000; |
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158 cc = select(target_fd+1, &fds, NULL, NULL, &tv); |
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159 if (cc < 0) { |
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160 if (errno == EINTR) |
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161 continue; |
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162 perror("select"); |
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163 exit(1); |
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164 } |
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165 if (cc < 1) |
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166 return(0); |
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167 cc = read(target_fd, &buf, 1); |
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168 if (cc <= 0) { |
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169 perror("read after successful select"); |
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170 exit(1); |
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171 } |
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172 if (buf == 'H') |
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173 return(1); |
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174 } |
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175 } |
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176 |
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177 static |
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178 send_beacons() |
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179 { |
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180 printf("Sending beacons to %s\n", target_ttydev); |
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181 do |
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182 write(target_fd, beacon_cmd, sizeof beacon_cmd); |
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183 while (!expect_beacon_response(BEACON_INTERVAL)); |
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184 return 0; |
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185 } |
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|
186 |
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187 static int |
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188 expect_add_response(buf, expect_bytes, timeout) |
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189 u_char *buf; |
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190 { |
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191 fd_set fds; |
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192 struct timeval tv; |
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193 int pass, cc; |
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|
194 |
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195 for (pass = 0; pass < expect_bytes; ) { |
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196 FD_ZERO(&fds); |
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197 FD_SET(target_fd, &fds); |
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198 tv.tv_sec = 0; |
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199 tv.tv_usec = timeout * 1000; |
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200 cc = select(target_fd+1, &fds, NULL, NULL, &tv); |
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|
201 if (cc < 0) { |
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202 if (errno == EINTR) |
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|
203 continue; |
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|
204 perror("select"); |
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|
205 exit(1); |
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|
206 } |
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|
207 if (cc < 1) |
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208 return(-1); |
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209 cc = read(target_fd, buf + pass, expect_bytes - pass); |
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210 if (cc <= 0) { |
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|
211 perror("read after successful select"); |
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212 exit(1); |
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|
213 } |
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|
214 pass += cc; |
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|
215 } |
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|
216 return(0); |
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|
217 } |
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|
218 |
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|
219 perform_frbl2_protocol() |
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220 { |
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|
221 u_char respbuf[4]; |
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222 static int zero = 0; |
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223 |
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224 ioctl(target_fd, FIONBIO, &zero); |
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225 send_beacons(); |
325
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|
226 printf("Got Hello response, attempting FLUID protocol\n"); |
324
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227 write(target_fd, fluid_baudrate_cmd, sizeof fluid_baudrate_cmd); |
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228 usleep(SERIAL_FLUSH_DELAY * 1000); |
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229 tcflush(target_fd, TCIFLUSH); |
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230 write(target_fd, fluid_version_cmd, sizeof fluid_version_cmd); |
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231 if (expect_add_response(respbuf, 1, INTERMEDIATE_TIMEOUT) < 0) { |
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|
232 fprintf(stderr, "no response to version query\n"); |
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|
233 exit(1); |
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|
234 } |
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|
235 if (!isdigit(respbuf[0])) { |
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|
236 fprintf(stderr, "bad response to version query: 0x%02X\n", |
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|
237 respbuf[0]); |
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|
238 exit(1); |
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|
239 } |
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|
240 printf("Version response: %d\n", respbuf[0] - '0'); |
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|
241 write(target_fd, fluid_chipquery_cmd, sizeof fluid_chipquery_cmd); |
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242 if (expect_add_response(respbuf, 4, INTERMEDIATE_TIMEOUT) < 0) { |
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|
243 fprintf(stderr, "no response to chip ID query\n"); |
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244 exit(1); |
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245 } |
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246 if (respbuf[2] || respbuf[3]) { |
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247 fprintf(stderr, |
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248 "bad response to chip ID query: %02X %02X %02X %02X\n", |
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249 respbuf[0], respbuf[1], respbuf[2], respbuf[3]); |
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250 exit(1); |
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251 } |
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252 printf("Chip ID response: %04X\n", (respbuf[1] << 8) | respbuf[0]); |
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253 printf("Sending download command\n"); |
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254 write(target_fd, fluid_download_cmd, sizeof fluid_download_cmd); |
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255 if (expect_add_response(respbuf, 1, INTERMEDIATE_TIMEOUT) < 0) { |
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256 fprintf(stderr, "no response to download command\n"); |
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257 exit(1); |
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258 } |
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259 if (respbuf[0] != 'R') { |
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260 fprintf(stderr, "bad response to download command: 0x%02X\n", |
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261 respbuf[0]); |
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262 exit(1); |
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263 } |
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264 if (write(target_fd, codeimage, codeimage_len) != codeimage_len) { |
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265 perror("write of download image bulk"); |
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266 exit(1); |
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267 } |
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268 printf("Code image sent!\n"); |
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269 } |
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270 |
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271 frbl_test_main() |
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272 { |
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273 read_srec_image(); |
324
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274 fill_download_cmd(); |
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275 perform_frbl2_protocol(); |
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276 } |