FreeCalypso > hg > freecalypso-tools

annotate uptools/atinterf/fcup-atinterf.c @ 345:cc207d81c05f

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fcup-atinterf: implemented wakeup of sleeping targets
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 04 Feb 2018 16:05:11 +0000
parents e0260c2982b6
children 7eddc2578fdb
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1 #include <sys/types.h>
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2 #include <sys/time.h>
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include <strings.h>
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7 #include <unistd.h>
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8
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9 extern int target_fd;
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10
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11 FILE *target_rd;
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12 char response[515];
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13
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14 char command[513], message[513];
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15 int cmd_with_msg;
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16
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17 read_command_input(buf)
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18 char *buf;
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19 {
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20 char *nl;
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21
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22 if (!fgets(buf, 513, stdin))
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23 return(0);
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24 nl = index(buf, '\n');
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25 if (!nl) {
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26 printf("Ecommand or message is too long\n");
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27 exit(1);
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28 }
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29 *nl = '\0';
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30 return(1);
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31 }
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32
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33 send_to_target(cmd, term)
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34 char *cmd;
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35 {
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36 char *endp;
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37 int len, cc;
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38
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39 endp = index(cmd, '\0');
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40 *endp = term;
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41 len = endp - cmd + 1;
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42 cc = write(target_fd, cmd, len);
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43 *endp = '\0';
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44 if (cc != len) {
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45 printf("Etarget write error\n");
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46 exit(1);
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47 }
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48 }
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49
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50 single_char_to_target(ch)
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51 {
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52 char buf = ch;
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53 int cc;
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54
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55 cc = write(target_fd, &buf, 1);
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56 if (cc != 1) {
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57 printf("Etarget write error\n");
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58 exit(1);
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59 }
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60 }
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61
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62 collect_target_response()
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63 {
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64 char *nl;
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65
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66 if (!fgets(response, 515, target_rd)) {
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67 printf("Etarget read error\n");
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68 exit(1);
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69 }
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70 nl = index(response, '\n');
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71 if (!nl) {
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72 printf("Etarget response is too long\n");
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73 exit(1);
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74 }
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75 while (nl > response && nl[-1] == '\r')
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76 nl--;
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77 *nl = '\0';
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78 }
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79
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80 execute_command()
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81 {
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82 int c;
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83
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84 send_to_target(command, '\r');
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85 collect_target_response();
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86 if (strcmp(command, response)) {
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87 printf("Efailed to get echo of command\n");
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88 exit(1);
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89 }
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90 if (cmd_with_msg) {
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91 if ((c = getc(target_rd)) != '>') {
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92 ungetc(c, target_rd);
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93 collect_target_response();
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94 printf("F%s\n", response);
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95 return;
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96 }
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97 if ((c = getc(target_rd)) != ' ') {
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98 ungetc(c, target_rd);
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99 collect_target_response();
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100 printf("F%s\n", response);
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101 return;
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102 }
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103 send_to_target(message, '\032');
341
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104 collect_target_response();
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105 if (strcmp(message, response)) {
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106 printf("Efailed to get echo of message\n");
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107 exit(1);
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108 }
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109 }
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110 for (;;) {
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111 collect_target_response();
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112 if (!strcmp(response, "OK") || !strcmp(response, "ERROR") ||
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113 !strcmp(response, "BUSY") ||
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114 !strcmp(response, "NO CARRIER") ||
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115 !strncmp(response, "+CME ERROR", 10) ||
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116 !strncmp(response, "+CMS ERROR", 10)) {
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117 printf("F%s\n", response);
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118 return;
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119 }
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120 printf("I%s\n", response);
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121 }
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122 }
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123
345
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124 wakeup_at()
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125 {
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126 single_char_to_target('A');
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127 usleep(50000);
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128 single_char_to_target('T');
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129 usleep(50000);
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130 single_char_to_target('\r');
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131 collect_target_response();
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132 if (response[0] && strcmp(response, "AT")) {
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133 badresp: printf("Ebad response to wakeup AT command\n");
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134 exit(1);
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135 }
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136 collect_target_response();
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137 if (strcmp(response, "OK"))
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138 goto badresp;
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139 }
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140
341
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141 main(argc, argv)
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142 char **argv;
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143 {
345
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144 int wakeup_after_sec = 7;
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145 struct timeval curtime, last_time, timediff;
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146
341
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147 if (argc < 3 || argc > 4) {
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148 fprintf(stderr,
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149 "usage: %s ttyport baudrate [wakeup-after-sec]\n",
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150 argv[0]);
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151 exit(1);
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152 }
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153 open_serial_port(argv[1]);
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154 set_fixed_baudrate(argv[2]);
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155 if (argc > 3)
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156 wakeup_after_sec = strtoul(argv[3], 0, 0);
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157
345
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158 set_serial_nonblock(0);
341
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159 target_rd = fdopen(target_fd, "r");
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160 if (!target_rd) {
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161 perror("fdopen");
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162 exit(1);
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163 }
345
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164 bzero(&last_time, sizeof(struct timeval));
341
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165
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166 while (read_command_input(command)) {
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167 if (!strcasecmp(command, "c+m")) {
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168 cmd_with_msg = 1;
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169 if (!read_command_input(command))
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170 break;
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171 if (!read_command_input(message))
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172 break;
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173 } else
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174 cmd_with_msg = 0;
345
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175 if (wakeup_after_sec) {
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176 gettimeofday(&curtime, 0);
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177 timersub(&curtime, &last_time, &timediff);
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178 if (timediff.tv_sec >= wakeup_after_sec)
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179 wakeup_at();
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180 bcopy(&curtime, &last_time, sizeof(struct timeval));
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181 }
341
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182 execute_command();
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183 fflush(stdout);
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184 }
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185 exit(0);
692dbc4c2f07 fcup-atinterf program written, compiles
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186 }