post/post.c

   1 /*
   2  * (C) Copyright 2002
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <console.h>
  26 #include <watchdog.h>
  27 #include <post.h>
  28
  29 #ifdef CONFIG_LOGBUFFER
  30 #include <logbuff.h>
  31 #endif
  32
  33 #ifdef CONFIG_POST
  34
  35 #define POST_MAX_NUMBER         32
  36
  37 #define BOOTMODE_MAGIC  0xDEAD0000
  38
  39 void post_bootmode_init (void)
  40 {
  41         DECLARE_GLOBAL_DATA_PTR;
  42         int bootmode = post_bootmode_get (0);
  43
  44         if (bootmode == 0) {
  45                 bootmode = POST_POWERON;
  46         } else if (bootmode == POST_POWERON) {
  47                 bootmode = POST_POWERNORMAL;
  48         } else {
  49                 return;
  50         }
  51
  52         post_word_store (BOOTMODE_MAGIC | bootmode);
  53         /* Reset activity record */
  54         gd->post_log_word = 0;
  55 }
  56
  57 int post_bootmode_get (unsigned int *last_test)
  58 {
  59         unsigned long word = post_word_load ();
  60         int bootmode;
  61
  62         if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
  63                 return 0;
  64         }
  65
  66         bootmode = word & 0xFF;
  67
  68         if (last_test && (bootmode & POST_POWERTEST)) {
  69                 *last_test = (word >> 8) & 0xFF;
  70         }
  71
  72         return bootmode;
  73 }
  74
  75 void post_bootmode_clear (void)
  76 {
  77         post_word_store (0);
  78 }
  79
  80 /* POST tests run before relocation only mark status bits .... */
  81 static void post_log_mark_start ( unsigned long testid )
  82 {
  83         DECLARE_GLOBAL_DATA_PTR;
  84         gd->post_log_word |= (testid)<<16;
  85 }
  86
  87 static void post_log_mark_succ ( unsigned long testid )
  88 {
  89         DECLARE_GLOBAL_DATA_PTR;
  90         gd->post_log_word |= testid;
  91 }
  92
  93 /* ... and the messages are output once we are relocated */
  94 void post_output_backlog ( void )
  95 {
  96         DECLARE_GLOBAL_DATA_PTR;
  97         int j;
  98
  99         for (j = 0; j < post_list_size; j++) {
 100                 if (gd->post_log_word & (post_list[j].testid<<16)) {
 101                         post_log ("POST %s ", post_list[j].cmd);
 102                         if (gd->post_log_word & post_list[j].testid)
 103                                 post_log ("PASSED\n");
 104                         else
 105                                 post_log ("FAILED\n");
 106                 }
 107         }
 108 }
 109
 110 static void post_bootmode_test_on (unsigned int last_test)
 111 {
 112         unsigned long word = post_word_load ();
 113
 114         word |= POST_POWERTEST;
 115
 116         word |= (last_test & 0xFF) << 8;
 117
 118         post_word_store (word);
 119 }
 120
 121 static void post_bootmode_test_off (void)
 122 {
 123         unsigned long word = post_word_load ();
 124
 125         word &= ~POST_POWERTEST;
 126
 127         post_word_store (word);
 128 }
 129
 130 static void post_get_flags (int *test_flags)
 131 {
 132         int flag[] = { POST_POWERON, POST_POWERNORMAL, POST_POWERFAIL };
 133         char *var[] = { "post_poweron", "post_normal", "post_shutdown" };
 134         int varnum = sizeof (var) / sizeof (var[0]);
 135         char list[128];                 /* long enough for POST list */
 136         char *name;
 137         char *s;
 138         int last;
 139         int i, j;
 140
 141         for (j = 0; j < post_list_size; j++) {
 142                 test_flags[j] = post_list[j].flags;
 143         }
 144
 145         for (i = 0; i < varnum; i++) {
 146                 if (getenv_r (var[i], list, sizeof (list)) <= 0)
 147                         continue;
 148
 149                 for (j = 0; j < post_list_size; j++) {
 150                         test_flags[j] &= ~flag[i];
 151                 }
 152
 153                 last = 0;
 154                 name = list;
 155                 while (!last) {
 156                         while (*name && *name == ' ')
 157                                 name++;
 158                         if (*name == 0)
 159                                 break;
 160                         s = name + 1;
 161                         while (*s && *s != ' ')
 162                                 s++;
 163                         if (*s == 0)
 164                                 last = 1;
 165                         else
 166                                 *s = 0;
 167
 168                         for (j = 0; j < post_list_size; j++) {
 169                                 if (strcmp (post_list[j].cmd, name) == 0) {
 170                                         test_flags[j] |= flag[i];
 171                                         break;
 172                                 }
 173                         }
 174
 175                         if (j == post_list_size) {
 176                                 printf ("No such test: %s\n", name);
 177                         }
 178
 179                         name = s + 1;
 180                 }
 181         }
 182 }
 183
 184 static int post_run_single (struct post_test *test,
 185                                 int test_flags, int flags, unsigned int i)
 186 {
 187         if ((flags & test_flags & POST_ALWAYS) &&
 188                 (flags & test_flags & POST_MEM)) {
 189                 WATCHDOG_RESET ();
 190
 191                 if (!(flags & POST_REBOOT)) {
 192                         if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 193                                 post_bootmode_test_on (i);
 194                         }
 195
 196                         if (test_flags & POST_PREREL)
 197                                 post_log_mark_start ( test->testid );
 198                         else
 199                         post_log ("POST %s ", test->cmd);
 200                 }
 201
 202                 if (test_flags & POST_PREREL) {
 203                         if ((*test->test) (flags) == 0)
 204                                 post_log_mark_succ ( test->testid );
 205                 } else {
 206                 if ((*test->test) (flags) != 0)
 207                         post_log ("FAILED\n");
 208                 else
 209                         post_log ("PASSED\n");
 210                 }
 211
 212                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 213                         post_bootmode_test_off ();
 214                 }
 215
 216                 return 0;
 217         } else {
 218                 return -1;
 219         }
 220 }
 221
 222 int post_run (char *name, int flags)
 223 {
 224         unsigned int i;
 225         int test_flags[POST_MAX_NUMBER];
 226
 227         post_get_flags (test_flags);
 228
 229         if (name == NULL) {
 230                 unsigned int last;
 231
 232                 if (post_bootmode_get (&last) & POST_POWERTEST) {
 233                         if (last < post_list_size &&
 234                                 (flags & test_flags[last] & POST_ALWAYS) &&
 235                                 (flags & test_flags[last] & POST_MEM)) {
 236
 237                                 post_run_single (post_list + last,
 238                                                  test_flags[last],
 239                                                  flags | POST_REBOOT, last);
 240
 241                                 for (i = last + 1; i < post_list_size; i++) {
 242                                         post_run_single (post_list + i,
 243                                                          test_flags[i],
 244                                                          flags, i);
 245                                 }
 246                         }
 247                 } else {
 248                         for (i = 0; i < post_list_size; i++) {
 249                                 post_run_single (post_list + i,
 250                                                  test_flags[i],
 251                                                  flags, i);
 252                         }
 253                 }
 254
 255                 return 0;
 256         } else {
 257                 for (i = 0; i < post_list_size; i++) {
 258                         if (strcmp (post_list[i].cmd, name) == 0)
 259                                 break;
 260                 }
 261
 262                 if (i < post_list_size) {
 263                         return post_run_single (post_list + i,
 264                                                 test_flags[i],
 265                                                 flags, i);
 266                 } else {
 267                         return -1;
 268                 }
 269         }
 270 }
 271
 272 static int post_info_single (struct post_test *test, int full)
 273 {
 274         if (test->flags & POST_MANUAL) {
 275                 if (full)
 276                         printf ("%s - %s\n"
 277                                 "  %s\n", test->cmd, test->name, test->desc);
 278                 else
 279                         printf ("  %-15s - %s\n", test->cmd, test->name);
 280
 281                 return 0;
 282         } else {
 283                 return -1;
 284         }
 285 }
 286
 287 int post_info (char *name)
 288 {
 289         unsigned int i;
 290
 291         if (name == NULL) {
 292                 for (i = 0; i < post_list_size; i++) {
 293                         post_info_single (post_list + i, 0);
 294                 }
 295
 296                 return 0;
 297         } else {
 298                 for (i = 0; i < post_list_size; i++) {
 299                         if (strcmp (post_list[i].cmd, name) == 0)
 300                                 break;
 301                 }
 302
 303                 if (i < post_list_size) {
 304                         return post_info_single (post_list + i, 1);
 305                 } else {
 306                         return -1;
 307                 }
 308         }
 309 }
 310
 311 int post_log (char *format, ...)
 312 {
 313         va_list args;
 314         uint i;
 315         char printbuffer[CFG_PBSIZE];
 316
 317         va_start (args, format);
 318
 319         /* For this to work, printbuffer must be larger than
 320          * anything we ever want to print.
 321          */
 322         i = vsprintf (printbuffer, format, args);
 323         va_end (args);
 324
 325 #ifdef CONFIG_LOGBUFFER
 326         /* Send to the logbuffer */
 327         logbuff_log (printbuffer);
 328 #else
 329         /* Send to the stdout file */
 330         puts (printbuffer);
 331 #endif
 332
 333         return 0;
 334 }
 335
 336 void post_reloc (void)
 337 {
 338         DECLARE_GLOBAL_DATA_PTR;
 339
 340         unsigned int i;
 341
 342         /*
 343          * We have to relocate the test table manually
 344          */
 345         for (i = 0; i < post_list_size; i++) {
 346                 ulong addr;
 347                 struct post_test *test = post_list + i;
 348
 349                 if (test->name) {
 350                         addr = (ulong) (test->name) + gd->reloc_off;
 351                         test->name = (char *) addr;
 352                 }
 353
 354                 if (test->cmd) {
 355                         addr = (ulong) (test->cmd) + gd->reloc_off;
 356                         test->cmd = (char *) addr;
 357                 }
 358
 359                 if (test->desc) {
 360                         addr = (ulong) (test->desc) + gd->reloc_off;
 361                         test->desc = (char *) addr;
 362                 }
 363
 364                 if (test->test) {
 365                         addr = (ulong) (test->test) + gd->reloc_off;
 366                         test->test = (int (*)(int flags)) addr;
 367                 }
 368         }
 369 }
 370
 371 #endif /* CONFIG_POST */