FreeCalypso > hg > freecalypso-tools
annotate loadtools/hwparam.c @ 435:0a01e1c4ea54
documentation: added some notes about the importance of preserving
our /opt/freecalypso private directory hierarchy
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 04 Nov 2018 21:55:19 +0000 |
parents | e7502631a0f9 |
children | 0dd2c87c1b63 |
rev | line source |
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0
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1 /* |
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2 * This module contains the code that reads the hardware parameter files |
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3 * specified with -h or -H, and sets variables for later use by other code. |
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4 */ |
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5 |
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6 #include <sys/param.h> |
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7 #include <stdio.h> |
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8 #include <ctype.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 #include <stdlib.h> |
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12 |
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13 extern char default_helpers_dir[]; |
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14 |
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15 extern void set_boot_reflash_hack(); |
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16 extern void set_default_exit_mode(); |
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17 extern void set_flash_device(); |
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18 |
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19 char hw_init_script[128]; |
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20 |
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21 static void |
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22 handle_compal_stage(arg, filename_for_errs, lineno_for_errs) |
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23 char *arg; |
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24 char *filename_for_errs; |
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25 int lineno_for_errs; |
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26 { |
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27 char *cp; |
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28 |
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29 while (isspace(*arg)) |
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30 arg++; |
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31 if (!*arg) { |
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32 fprintf(stderr, |
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33 "%s line %d: compal-stage setting requires an argument\n", |
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34 filename_for_errs, lineno_for_errs); |
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35 exit(1); |
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36 } |
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37 for (cp = arg; *cp && !isspace(*cp); cp++) |
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38 ; |
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39 *cp = '\0'; |
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40 set_compalstage_short(arg); |
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41 } |
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42 |
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43 static void |
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44 handle_init_script(arg, filename_for_errs, lineno_for_errs) |
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45 char *arg; |
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46 char *filename_for_errs; |
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47 int lineno_for_errs; |
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48 { |
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49 char *cp; |
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50 |
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51 while (isspace(*arg)) |
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52 arg++; |
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53 if (!*arg) { |
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54 fprintf(stderr, |
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55 "%s line %d: init-script setting requires an argument\n", |
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56 filename_for_errs, lineno_for_errs); |
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57 exit(1); |
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58 } |
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59 for (cp = arg; *cp && !isspace(*cp); cp++) |
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60 ; |
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61 *cp = '\0'; |
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62 if (cp - arg > sizeof(hw_init_script) - 1) { |
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63 fprintf(stderr, |
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64 "%s line %d: init-script argument is too long (buffer overflow)\n", |
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65 filename_for_errs, lineno_for_errs); |
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66 exit(1); |
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67 } |
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68 strcpy(hw_init_script, arg); |
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69 } |
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70 |
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71 static void |
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72 handle_pll_config(arg, filename_for_errs, lineno_for_errs) |
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73 char *arg; |
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74 char *filename_for_errs; |
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75 int lineno_for_errs; |
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76 { |
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77 int mult, div; |
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78 |
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79 while (isspace(*arg)) |
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80 arg++; |
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81 if (!isdigit(*arg)) { |
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82 inv: fprintf(stderr, "%s line %d: pll-config argument must be M/N\n", |
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83 filename_for_errs, lineno_for_errs); |
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84 exit(1); |
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85 } |
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86 mult = atoi(arg); |
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87 arg++; |
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88 if (isdigit(*arg)) |
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89 arg++; |
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90 if (*arg++ != '/') |
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91 goto inv; |
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92 if (!isdigit(*arg)) |
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93 goto inv; |
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94 div = atoi(arg); |
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95 arg++; |
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96 if (*arg && !isspace(*arg)) |
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97 goto inv; |
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98 if (mult < 0 || mult > 31 || div < 1 || div > 4) { |
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99 fprintf(stderr, |
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100 "%s line %d: pll-config argument is out of range\n", |
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101 filename_for_errs, lineno_for_errs); |
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102 exit(1); |
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103 } |
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104 set_romload_pll_conf((mult << 2) | (div - 1)); |
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105 } |
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diff
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106 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
107 static void |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
108 handle_rhea_cntl(arg, filename_for_errs, lineno_for_errs) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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109 char *arg; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
110 char *filename_for_errs; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
111 int lineno_for_errs; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
112 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
113 int byte; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
114 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
115 while (isspace(*arg)) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
116 arg++; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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117 if (arg[0] == '0' && (arg[1] == 'x' || arg[1] == 'X')) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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118 arg += 2; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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119 byte = decode_hex_byte(arg); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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120 if (byte < 0 || arg[2] && !isspace(arg[2])) { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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121 fprintf(stderr, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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122 "%s line %d: rhea-cntl argument must be a hex byte value\n", |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
123 filename_for_errs, lineno_for_errs); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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124 exit(1); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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125 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
126 set_romload_rhea_cntl(byte); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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127 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
128 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
129 static struct cmdtab { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 char *name; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
131 void (*func)(); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 } cmdtab[] = { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
133 {"boot-reflash-hack", set_boot_reflash_hack}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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134 {"compal-stage", handle_compal_stage}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
135 {"exit-mode", set_default_exit_mode}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
136 {"flash", set_flash_device}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
137 {"init-script", handle_init_script}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
138 {"pll-config", handle_pll_config}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
139 {"rhea-cntl", handle_rhea_cntl}, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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140 {0, 0} |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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141 }; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
142 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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143 void |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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144 read_hwparam_file_fullpath(filename) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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145 char *filename; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
146 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
147 FILE *f; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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148 char linebuf[512]; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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149 int lineno; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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150 char *cp, *np; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
151 struct cmdtab *tp; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
152 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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153 f = fopen(filename, "r"); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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154 if (!f) { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
155 perror(filename); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
156 exit(1); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
157 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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158 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
159 for (cp = linebuf; isspace(*cp); cp++) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
160 ; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
161 if (!*cp || *cp == '#') |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
162 continue; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
163 for (np = cp; *cp && !isspace(*cp); cp++) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
164 ; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
165 if (*cp) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
166 *cp++ = '\0'; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
167 for (tp = cmdtab; tp->name; tp++) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
168 if (!strcmp(tp->name, np)) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
169 break; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
170 if (tp->func) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
171 tp->func(cp, filename, lineno); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
172 else { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
173 fprintf(stderr, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
174 "%s line %d: setting \"%s\" not understood\n", |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
175 filename, lineno, np); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
176 exit(1); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
177 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
178 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
179 fclose(f); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
180 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
181 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
182 void |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
183 read_hwparam_file_shortname(confname) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
184 char *confname; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
185 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
186 char pathname[MAXPATHLEN]; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
187 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
188 sprintf(pathname, "%s/%s.config", default_helpers_dir, confname); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
189 read_hwparam_file_fullpath(pathname); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
190 } |