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annotate ffstools/newcomp/compile-fc-batt.c @ 752:c79aaed75bd8

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compile-fc-batt: allow possible third field in source lines Battery tables maintained in the fc-battery-conf repository will now have a third field added, defining thresholds for the battery bars icon, and there will be a new utility to compile them into the new /etc/batterytab2 file read by the FC Tourmaline version of our FCHG driver. For backward compatibility with the original Magnetite version of FCHG, compile-fc-batt remains the tool for compiling the original /etc/batterytab file format, and it needs to ignore the newly added third field in battery table sources.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 05 Nov 2020 20:37:55 +0000
parents 182c3ae209f6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * This utility compiles a table of battery thresholds for the 2017-12 version
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3 * of FreeCalypso battery management code from ASCII source into the binary
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4 * form suitable for uploading into /etc/batterytab on a FreeCalypso device.
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5 */
182c3ae209f6 compile-fc-batt tool written, compiles
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6
182c3ae209f6 compile-fc-batt tool written, compiles
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7 #include <ctype.h>
182c3ae209f6 compile-fc-batt tool written, compiles
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8 #include <string.h>
182c3ae209f6 compile-fc-batt tool written, compiles
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9 #include <strings.h>
182c3ae209f6 compile-fc-batt tool written, compiles
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10 #include <stdio.h>
182c3ae209f6 compile-fc-batt tool written, compiles
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11 #include <stdlib.h>
182c3ae209f6 compile-fc-batt tool written, compiles
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12 #include "../../rvinterf/include/exitcodes.h"
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13
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14 char *infname;
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15 FILE *inf, *outf;
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16 char linebuf[256];
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17 int lineno, record_count;
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18 unsigned last_mv, last_percent;
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19
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20 process_line()
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21 {
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22 char *cp;
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23 unsigned mv, percent;
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24
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25 for (cp = linebuf; isspace(*cp); cp++)
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26 ;
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27 if (*cp == '\0' || *cp == '#')
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28 return(0);
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29 if (!isdigit(*cp)) {
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30 inv: fprintf(stderr, "%s line %d: invalid syntax\n", infname,
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31 lineno);
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32 exit(ERROR_USAGE);
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33 }
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34 mv = strtoul(cp, 0, 10);
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35 while (isdigit(*cp))
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36 cp++;
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37 if (!isspace(*cp))
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38 goto inv;
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39 while (isspace(*cp))
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40 cp++;
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41 if (!isdigit(*cp))
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42 goto inv;
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43 percent = strtoul(cp, 0, 10);
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44 while (isdigit(*cp))
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45 cp++;
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46 if (*cp && !isspace(*cp))
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47 goto inv;
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48 /* ignore possible third field added in 2020-11 for bars threshold */
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49 if (mv > 0xFFFF) {
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50 fprintf(stderr, "%s line %d: the millivolt value is invalid\n",
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51 infname, lineno);
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52 exit(ERROR_USAGE);
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53 }
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54 if (percent > 100) {
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55 fprintf(stderr, "%s line %d: the percent value is invalid\n",
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56 infname, lineno);
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57 exit(ERROR_USAGE);
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58 }
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59 if (record_count) {
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60 if (mv >= last_mv) {
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61 fprintf(stderr,
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62 "%s line %d: millivolt numbers must be decreasing\n",
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63 infname, lineno);
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64 exit(ERROR_USAGE);
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65 }
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66 if (percent >= last_percent) {
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67 fprintf(stderr,
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68 "%s line %d: percent numbers must be decreasing\n",
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69 infname, lineno);
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70 exit(ERROR_USAGE);
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71 }
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72 }
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73 putc(mv, outf);
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74 putc(mv >> 8, outf);
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75 putc(percent, outf);
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76 putc(0, outf);
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77 last_mv = mv;
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78 last_percent = percent;
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79 record_count++;
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80 return(1);
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81 }
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82
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83 main(argc, argv)
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84 char **argv;
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85 {
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86 if (argc != 3) {
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87 fprintf(stderr, "usage: %s srcfile output-binfile\n", argv[0]);
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88 exit(ERROR_USAGE);
182c3ae209f6 compile-fc-batt tool written, compiles
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89 }
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90 infname = argv[1];
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91 inf = fopen(infname, "r");
182c3ae209f6 compile-fc-batt tool written, compiles
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92 if (!inf) {
182c3ae209f6 compile-fc-batt tool written, compiles
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93 perror(infname);
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94 exit(ERROR_UNIX);
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95 }
182c3ae209f6 compile-fc-batt tool written, compiles
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96 outf = fopen(argv[2], "w");
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97 if (!outf) {
182c3ae209f6 compile-fc-batt tool written, compiles
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98 perror(argv[2]);
182c3ae209f6 compile-fc-batt tool written, compiles
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99 exit(ERROR_UNIX);
182c3ae209f6 compile-fc-batt tool written, compiles
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100 }
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101 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++)
182c3ae209f6 compile-fc-batt tool written, compiles
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102 process_line();
182c3ae209f6 compile-fc-batt tool written, compiles
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103 fclose(inf);
182c3ae209f6 compile-fc-batt tool written, compiles
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104 fclose(outf);
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105 if (record_count)
182c3ae209f6 compile-fc-batt tool written, compiles
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106 exit(0);
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107 fprintf(stderr, "error: %s is empty\n", infname);
182c3ae209f6 compile-fc-batt tool written, compiles
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108 exit(ERROR_USAGE);
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109 }