FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/fsnew.c @ 948:d16222179c67

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doc/Rvinterf-tools: document rvinterf -v changes
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 06 Jun 2023 23:17:10 +0000
parents 37b38b1a1136
children
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1 /*
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2 * In this module we are going to implement the commands that upload
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3 * new FreeCalypso-invented stuff into the FFS of our FC devices.
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4 */
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5
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6 #include <sys/wait.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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10 #include "exitcodes.h"
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11
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12 char batterytab_compile_tool[] = "/opt/freecalypso/bin/compile-fc-batt";
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13 char batterytab2_compile_tool[] = "/opt/freecalypso/bin/compile-fc-batt2";
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14 char charging_compile_tool[] = "/opt/freecalypso/bin/compile-fc-chg";
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15
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16 upload_fc_table_from_ascii(asciisrc, compiletool, ffs_pathname)
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17 char *asciisrc, *compiletool, *ffs_pathname;
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18 {
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19 char tmpfile[] = "/tmp/fc-fsioXXXXXX";
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20 int tmpfd;
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21 pid_t child, waitres;
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22 int status, rc;
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23
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24 tmpfd = mkstemp(tmpfile);
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25 if (tmpfd < 0) {
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26 fprintf(stderr, "unable to get temp file via mkstemp()\n");
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27 return(ERROR_UNIX);
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28 }
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29 close(tmpfd);
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30 child = vfork();
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31 if (child < 0) {
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32 fprintf(stderr, "unable to vfork to run compiler tool\n");
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33 unlink(tmpfile);
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34 return(ERROR_UNIX);
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35 }
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36 if (!child) {
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37 execl(compiletool, compiletool, asciisrc, tmpfile, (char *) 0);
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38 perror(compiletool);
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39 _exit(ERROR_UNIX);
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40 }
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41 waitres = waitpid(child, &status, 0);
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42 if (waitres != child || !WIFEXITED(status)) {
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43 fprintf(stderr, "unexpected wait result after compiler run\n");
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44 unlink(tmpfile);
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45 return(ERROR_UNIX);
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46 }
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47 rc = WEXITSTATUS(status);
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48 if (rc) {
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49 unlink(tmpfile);
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50 return rc;
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51 }
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52 rc = fwrite_from_file(ffs_pathname, tmpfile);
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53 unlink(tmpfile);
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54 return rc;
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55 }
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56
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57 cmd_write_battery_table_v1(argc, argv)
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58 char **argv;
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59 {
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60 return upload_fc_table_from_ascii(argv[1], batterytab_compile_tool,
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61 "/etc/batterytab");
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62 }
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63
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64 cmd_write_battery_table_v2(argc, argv)
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65 char **argv;
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66 {
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67 return upload_fc_table_from_ascii(argv[1], batterytab2_compile_tool,
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68 "/etc/batterytab2");
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69 }
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70
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71 cmd_write_charging_config(argc, argv)
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72 char **argv;
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73 {
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74 return upload_fc_table_from_ascii(argv[1], charging_compile_tool,
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75 "/etc/charging");
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76 }
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77
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78 cmd_write_bsim_config(argc, argv)
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79 char **argv;
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80 {
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81 static char filename[] = "/etc/batterysim";
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82 u_char bytes[4];
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83
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84 bytes[0] = strtoul(argv[1], 0, 0);
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85 bytes[1] = strtoul(argv[2], 0, 0);
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86 bytes[2] = 0; /* RFU */
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87 bytes[3] = 0; /* RFU */
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88 return do_short_fwrite(filename, bytes, 4);
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89 }