FreeCalypso > hg > freecalypso-sw
annotate loadtools/hwparam.c @ 395:8891c3d0c68a
fc-loadtool: pass abb[rw] commands through to loadagent
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Wed, 11 Jun 2014 17:49:13 +0000 |
parents | a2210b0361c1 |
children | 1ed2d78f150c |
rev | line source |
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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_default_exit_mode(); |
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16 extern void set_flash_device(); |
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17 |
17
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18 char hw_init_script[128]; |
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19 |
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20 static void |
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21 handle_compal_stage(arg, filename_for_errs, lineno_for_errs) |
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22 char *arg; |
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23 char *filename_for_errs; |
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24 int lineno_for_errs; |
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25 { |
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26 char *cp; |
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27 |
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28 while (isspace(*arg)) |
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29 arg++; |
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30 if (!*arg) { |
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31 fprintf(stderr, |
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32 "%s line %d: compal-stage setting requires an argument\n", |
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33 filename_for_errs, lineno_for_errs); |
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34 exit(1); |
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35 } |
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36 for (cp = arg; *cp && !isspace(*cp); cp++) |
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37 ; |
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38 *cp = '\0'; |
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39 set_compalstage_short(arg); |
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40 } |
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41 |
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42 static void |
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43 handle_init_script(arg, filename_for_errs, lineno_for_errs) |
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44 char *arg; |
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45 char *filename_for_errs; |
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46 int lineno_for_errs; |
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47 { |
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48 char *cp; |
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49 |
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50 while (isspace(*arg)) |
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51 arg++; |
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52 if (!*arg) { |
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53 fprintf(stderr, |
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54 "%s line %d: init-script setting requires an argument\n", |
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55 filename_for_errs, lineno_for_errs); |
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56 exit(1); |
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57 } |
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58 for (cp = arg; *cp && !isspace(*cp); cp++) |
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59 ; |
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60 *cp = '\0'; |
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61 if (cp - arg > sizeof(hw_init_script) - 1) { |
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62 fprintf(stderr, |
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63 "%s line %d: init-script argument is too long (buffer overflow)\n", |
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64 filename_for_errs, lineno_for_errs); |
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65 exit(1); |
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66 } |
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67 strcpy(hw_init_script, arg); |
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68 } |
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69 |
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70 static void |
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71 handle_pll_config(arg, filename_for_errs, lineno_for_errs) |
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72 char *arg; |
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73 char *filename_for_errs; |
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74 int lineno_for_errs; |
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75 { |
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76 int mult, div; |
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77 |
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78 while (isspace(*arg)) |
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79 arg++; |
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80 if (!isdigit(*arg)) { |
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81 inv: fprintf(stderr, "%s line %d: pll-config argument must be M/N\n", |
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82 filename_for_errs, lineno_for_errs); |
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83 exit(1); |
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84 } |
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85 mult = atoi(arg); |
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86 arg++; |
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87 if (isdigit(*arg)) |
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88 arg++; |
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89 if (*arg++ != '/') |
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90 goto inv; |
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91 if (!isdigit(*arg)) |
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92 goto inv; |
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93 div = atoi(arg); |
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94 arg++; |
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95 if (*arg && !isspace(*arg)) |
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96 goto inv; |
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97 if (mult < 0 || mult > 31 || div < 1 || div > 4) { |
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98 fprintf(stderr, |
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99 "%s line %d: pll-config argument is out of range\n", |
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100 filename_for_errs, lineno_for_errs); |
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101 exit(1); |
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102 } |
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103 set_romload_pll_conf((mult << 2) | (div - 1)); |
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104 } |
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105 |
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106 static void |
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107 handle_rhea_cntl(arg, filename_for_errs, lineno_for_errs) |
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108 char *arg; |
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109 char *filename_for_errs; |
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110 int lineno_for_errs; |
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111 { |
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112 int byte; |
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113 |
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114 while (isspace(*arg)) |
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115 arg++; |
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116 if (arg[0] == '0' && (arg[1] == 'x' || arg[1] == 'X')) |
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117 arg += 2; |
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118 byte = decode_hex_byte(arg); |
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119 if (byte < 0 || arg[2] && !isspace(arg[2])) { |
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120 fprintf(stderr, |
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121 "%s line %d: rhea-cntl argument must be a hex byte value\n", |
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122 filename_for_errs, lineno_for_errs); |
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123 exit(1); |
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124 } |
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125 set_romload_rhea_cntl(byte); |
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126 } |
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127 |
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128 static struct cmdtab { |
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129 char *name; |
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130 void (*func)(); |
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131 } cmdtab[] = { |
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132 {"compal-stage", handle_compal_stage}, |
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133 {"exit-mode", set_default_exit_mode}, |
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134 {"flash", set_flash_device}, |
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135 {"init-script", handle_init_script}, |
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136 {"pll-config", handle_pll_config}, |
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137 {"rhea-cntl", handle_rhea_cntl}, |
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138 {0, 0} |
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139 }; |
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140 |
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141 void |
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142 read_hwparam_file_fullpath(filename) |
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143 char *filename; |
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144 { |
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145 FILE *f; |
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146 char linebuf[512]; |
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147 int lineno; |
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148 char *cp, *np; |
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149 struct cmdtab *tp; |
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150 |
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151 f = fopen(filename, "r"); |
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152 if (!f) { |
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153 perror(filename); |
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154 exit(1); |
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155 } |
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156 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { |
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157 for (cp = linebuf; isspace(*cp); cp++) |
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158 ; |
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159 if (!*cp || *cp == '#') |
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160 continue; |
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161 for (np = cp; *cp && !isspace(*cp); cp++) |
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162 ; |
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163 if (*cp) |
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164 *cp++ = '\0'; |
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165 for (tp = cmdtab; tp->name; tp++) |
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166 if (!strcmp(tp->name, np)) |
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167 break; |
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168 if (tp->func) |
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169 tp->func(cp, filename, lineno); |
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170 else { |
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171 fprintf(stderr, |
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172 "%s line %d: setting \"%s\" not understood\n", |
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173 filename, lineno, np); |
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174 exit(1); |
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175 } |
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176 } |
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177 fclose(f); |
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178 } |
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179 |
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180 void |
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181 read_hwparam_file_shortname(confname) |
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182 char *confname; |
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183 { |
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184 char pathname[MAXPATHLEN]; |
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185 |
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186 sprintf(pathname, "%s/%s.config", default_helpers_dir, confname); |
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187 read_hwparam_file_fullpath(pathname); |
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188 } |