FreeCalypso > hg > fc-tourmaline

annotate helpers/cfg-hdr-gen.c @ 221:5bf097aeaad7

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LLS: when turning off all LEDs on boot, skip LED-C Having LLS turn off LED-A and LED-B on boot is normally unnecessary (they should already be off in Iota), but it is harmless, hence this logic is kept for robustness. However, having LLS read-modify-write the BCICTL2 register (to turn off LED-C) creates a potential race condition with FCHG writes to this register, especially in the case when baseband switch-on is caused by VCHG and charging is expected to start right away. Furthermore, control of the charging LED itself (on those hw targets that have it) is the responsibility of the FCHG SWE, hence LLS should leave it alone.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 21:55:13 +0000
parents 1fb47f5b597a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
9
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1 /*
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2 * This helper program generates the set of *.cfg header files, based on a
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3 * template file and environment variables for the non-constant settings.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9 #include <ctype.h>
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10 #include <string.h>
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11 #include <strings.h>
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12
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13 char *infname;
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14 FILE *inf, *outf;
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15 char include_guard_symbol[32];
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16 char linebuf[256];
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17 int lineno;
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18
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19 make_include_guard_symbol(fname)
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20 char *fname;
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21 {
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22 char *sp, *dp;
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23 int c;
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24
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25 sp = fname;
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26 dp = include_guard_symbol;
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27 *dp++ = '_';
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28 *dp++ = '_';
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29 while (c = *sp++) {
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30 if (islower(c))
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31 c = toupper(c);
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32 else if (c == '.')
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33 c = '_';
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34 *dp++ = c;
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35 }
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36 *dp++ = '_';
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37 *dp++ = '_';
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38 *dp = '\0';
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39 }
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40
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41 close_output()
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42 {
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43 if (outf) {
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44 fprintf(outf, "#endif /* %s */\n", include_guard_symbol);
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45 fclose(outf);
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46 outf = 0;
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47 }
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48 }
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49
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50 bracket_line()
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51 {
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52 char *cp;
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53
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54 close_output();
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55 cp = index(linebuf+1, ']');
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56 if (!cp) {
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57 fprintf(stderr, "%s line %d: unterminated bracket line\n",
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Mychaela Falconia <falcon@freecalypso.org>
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58 infname, lineno);
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59 exit(1);
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60 }
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61 *cp = '\0';
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62 outf = fopen(linebuf+1, "w");
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63 if (!outf) {
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64 perror(linebuf+1);
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65 exit(1);
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66 }
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67 make_include_guard_symbol(linebuf+1);
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68 fprintf(outf, "#ifndef %s\n", include_guard_symbol);
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69 fprintf(outf, "#define %s\n", include_guard_symbol);
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70 }
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71
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72 process_line()
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73 {
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74 char *cp, *symbol, *value;
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75
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76 if (linebuf[0] == '[')
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77 return bracket_line();
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78 for (cp = linebuf; isspace(*cp); cp++)
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79 ;
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80 if (*cp == '\0' || *cp == '#')
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81 return;
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82 for (symbol = cp; *cp && !isspace(*cp); cp++)
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83 ;
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84 if (!*cp) {
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85 inv: fprintf(stderr, "%s line %d: expected two fields\n",
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86 infname, lineno);
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87 exit(1);
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88 }
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89 *cp++ = '\0';
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90 while (isspace(*cp))
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91 cp++;
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92 if (*cp == '\0' || *cp == '#')
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93 goto inv;
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94 for (value = cp; *cp && !isspace(*cp); cp++)
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95 ;
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96 if (*cp)
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97 *cp++ = '\0';
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98 while (isspace(*cp))
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99 cp++;
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100 if (*cp != '\0' && *cp != '#')
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101 goto inv;
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102 if (!strcmp(value, "var")) {
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103 value = getenv(symbol);
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104 if (!value) {
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105 fprintf(stderr,
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106 "%s line %d: no environment variable named %s\n",
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107 infname, lineno, symbol);
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108 exit(1);
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109 }
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110 }
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111 if (!outf) {
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112 fprintf(stderr, "%s line %d: no open output file\n",
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Mychaela Falconia <falcon@freecalypso.org>
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113 infname, lineno);
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114 exit(1);
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115 }
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116 fprintf(outf, "#define %s %s\n", symbol, value);
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117 }
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118
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119 main(argc, argv)
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120 char **argv;
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121 {
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122 if (argc != 3) {
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123 fprintf(stderr, "usage: %s template-file output-dir\n",
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124 argv[0]);
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125 exit(1);
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126 }
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127 infname = argv[1];
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128 inf = fopen(infname, "r");
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Mychaela Falconia <falcon@freecalypso.org>
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129 if (!inf) {
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Mychaela Falconia <falcon@freecalypso.org>
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130 perror(infname);
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Mychaela Falconia <falcon@freecalypso.org>
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131 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
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132 }
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Mychaela Falconia <falcon@freecalypso.org>
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133 if (chdir(argv[2]) < 0) {
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134 perror(argv[2]);
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135 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
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136 }
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Mychaela Falconia <falcon@freecalypso.org>
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137 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++)
1fb47f5b597a helpers: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
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138 process_line();
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Mychaela Falconia <falcon@freecalypso.org>
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139 close_output();
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Mychaela Falconia <falcon@freecalypso.org>
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140 exit(0);
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Mychaela Falconia <falcon@freecalypso.org>
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141 }