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annotate loadtools/hwparam.c @ 406:0b8e5072abde

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fc-loadtool flash: reset to read mode added where appropriate
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Tue, 17 Jun 2014 00:53:07 +0000
parents a2210b0361c1
children 1ed2d78f150c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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17
24b88c119465 loadtools: hw parameter file reading implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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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>
21
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9 #include <string.h>
17
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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
28
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15 extern void set_default_exit_mode();
55
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16 extern void set_flash_device();
28
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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
382
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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
17
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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[] = {
382
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132 {"compal-stage", handle_compal_stage},
28
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133 {"exit-mode", set_default_exit_mode},
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134 {"flash", set_flash_device},
17
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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 }