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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 <stdio_dev.h>
26 #include <watchdog.h>
27 #include <post.h>
28
29 #ifdef CONFIG_LOGBUFFER
30 #include <logbuff.h>
31 #endif
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 #define POST_MAX_NUMBER         32
36
37 #define BOOTMODE_MAGIC  0xDEAD0000
38
39 int post_init_f (void)
40 {
41         int res = 0;
42         unsigned int i;
43
44         for (i = 0; i < post_list_size; i++) {
45                 struct post_test *test = post_list + i;
46
47                 if (test->init_f && test->init_f()) {
48                         res = -1;
49                 }
50         }
51
52         gd->post_init_f_time = post_time_ms(0);
53         if (!gd->post_init_f_time)
54         {
55                 printf("post/post.c: post_time_ms seems not to be implemented\n");
56         }
57
58         return res;
59 }
60
61 /*
62  * Supply a default implementation for post_hotkeys_pressed() for boards
63  * without hotkey support. We always return 0 here, so that the
64  * long-running tests won't be started.
65  *
66  * Boards with hotkey support can override this weak default function
67  * by defining one in their board specific code.
68  */
69 int __post_hotkeys_pressed(void)
70 {
71         return 0;       /* No hotkeys supported */
72 }
73 int post_hotkeys_pressed(void)
74         __attribute__((weak, alias("__post_hotkeys_pressed")));
75
76
77 void post_bootmode_init (void)
78 {
79         int bootmode = post_bootmode_get (0);
80         int newword;
81
82         if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) {
83                 newword = BOOTMODE_MAGIC | POST_SLOWTEST;
84         } else if (bootmode == 0) {
85                 newword = BOOTMODE_MAGIC | POST_POWERON;
86         } else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) {
87                 newword = BOOTMODE_MAGIC | POST_NORMAL;
88         } else {
89                 /* Use old value */
90                 newword = post_word_load () & ~POST_COLDBOOT;
91         }
92
93         if (bootmode == 0)
94         {
95                 /* We are booting after power-on */
96                 newword |= POST_COLDBOOT;
97         }
98
99         post_word_store (newword);
100
101         /* Reset activity record */
102         gd->post_log_word = 0;
103 }
104
105 int post_bootmode_get (unsigned int *last_test)
106 {
107         unsigned long word = post_word_load ();
108         int bootmode;
109
110         if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
111                 return 0;
112         }
113
114         bootmode = word & 0x7F;
115
116         if (last_test && (bootmode & POST_POWERTEST)) {
117                 *last_test = (word >> 8) & 0xFF;
118         }
119
120         return bootmode;
121 }
122
123 /* POST tests run before relocation only mark status bits .... */
124 static void post_log_mark_start ( unsigned long testid )
125 {
126         gd->post_log_word |= (testid)<<16;
127 }
128
129 static void post_log_mark_succ ( unsigned long testid )
130 {
131         gd->post_log_word |= testid;
132 }
133
134 /* ... and the messages are output once we are relocated */
135 void post_output_backlog ( void )
136 {
137         int j;
138
139         for (j = 0; j < post_list_size; j++) {
140                 if (gd->post_log_word & (post_list[j].testid<<16)) {
141                         post_log ("POST %s ", post_list[j].cmd);
142                         if (gd->post_log_word & post_list[j].testid)
143                                 post_log ("PASSED\n");
144                         else {
145                                 post_log ("FAILED\n");
146                                 show_boot_progress (-31);
147                         }
148                 }
149         }
150 }
151
152 static void post_bootmode_test_on (unsigned int last_test)
153 {
154         unsigned long word = post_word_load ();
155
156         word |= POST_POWERTEST;
157
158         word |= (last_test & 0xFF) << 8;
159
160         post_word_store (word);
161 }
162
163 static void post_bootmode_test_off (void)
164 {
165         unsigned long word = post_word_load ();
166
167         word &= ~POST_POWERTEST;
168
169         post_word_store (word);
170 }
171
172 static void post_get_flags (int *test_flags)
173 {
174         int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST,
175                          POST_CRITICAL };
176         char *var[] = { "post_poweron", "post_normal", "post_slowtest",
177                         "post_critical" };
178         int varnum = sizeof (var) / sizeof (var[0]);
179         char list[128];                 /* long enough for POST list */
180         char *name;
181         char *s;
182         int last;
183         int i, j;
184
185         for (j = 0; j < post_list_size; j++) {
186                 test_flags[j] = post_list[j].flags;
187         }
188
189         for (i = 0; i < varnum; i++) {
190                 if (getenv_f(var[i], list, sizeof (list)) <= 0)
191                         continue;
192
193                 for (j = 0; j < post_list_size; j++) {
194                         test_flags[j] &= ~flag[i];
195                 }
196
197                 last = 0;
198                 name = list;
199                 while (!last) {
200                         while (*name && *name == ' ')
201                                 name++;
202                         if (*name == 0)
203                                 break;
204                         s = name + 1;
205                         while (*s && *s != ' ')
206                                 s++;
207                         if (*s == 0)
208                                 last = 1;
209                         else
210                                 *s = 0;
211
212                         for (j = 0; j < post_list_size; j++) {
213                                 if (strcmp (post_list[j].cmd, name) == 0) {
214                                         test_flags[j] |= flag[i];
215                                         break;
216                                 }
217                         }
218
219                         if (j == post_list_size) {
220                                 printf ("No such test: %s\n", name);
221                         }
222
223                         name = s + 1;
224                 }
225         }
226
227         for (j = 0; j < post_list_size; j++) {
228                 if (test_flags[j] & POST_POWERON) {
229                         test_flags[j] |= POST_SLOWTEST;
230                 }
231         }
232 }
233
234 void __show_post_progress (unsigned int test_num, int before, int result)
235 {
236 }
237 void show_post_progress (unsigned int, int, int)
238                         __attribute__((weak, alias("__show_post_progress")));
239
240 static int post_run_single (struct post_test *test,
241                                 int test_flags, int flags, unsigned int i)
242 {
243         if ((flags & test_flags & POST_ALWAYS) &&
244                 (flags & test_flags & POST_MEM)) {
245                 WATCHDOG_RESET ();
246
247                 if (!(flags & POST_REBOOT)) {
248                         if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
249                                 post_bootmode_test_on (
250                                         (gd->flags & GD_FLG_POSTFAIL) ?
251                                                 POST_FAIL_SAVE | i : i);
252                         }
253
254                         if (test_flags & POST_PREREL)
255                                 post_log_mark_start ( test->testid );
256                         else
257                                 post_log ("POST %s ", test->cmd);
258                 }
259
260                 show_post_progress(i, POST_BEFORE, POST_FAILED);
261
262                 if (test_flags & POST_PREREL) {
263                         if ((*test->test) (flags) == 0) {
264                                 post_log_mark_succ ( test->testid );
265                                 show_post_progress(i, POST_AFTER, POST_PASSED);
266                         }
267                         else {
268                                 show_post_progress(i, POST_AFTER, POST_FAILED);
269                                 if (test_flags & POST_CRITICAL)
270                                         gd->flags |= GD_FLG_POSTFAIL;
271                                 if (test_flags & POST_STOP)
272                                         gd->flags |= GD_FLG_POSTSTOP;
273                         }
274                 } else {
275                 if ((*test->test) (flags) != 0) {
276                         post_log ("FAILED\n");
277                         show_boot_progress (-32);
278                         show_post_progress(i, POST_AFTER, POST_FAILED);
279                         if (test_flags & POST_CRITICAL)
280                                 gd->flags |= GD_FLG_POSTFAIL;
281                         if (test_flags & POST_STOP)
282                                 gd->flags |= GD_FLG_POSTSTOP;
283                 }
284                 else
285                         post_log ("PASSED\n");
286                         show_post_progress(i, POST_AFTER, POST_PASSED);
287                 }
288
289                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
290                         post_bootmode_test_off ();
291                 }
292
293                 return 0;
294         } else {
295                 return -1;
296         }
297 }
298
299 int post_run (char *name, int flags)
300 {
301         unsigned int i;
302         int test_flags[POST_MAX_NUMBER];
303
304         post_get_flags (test_flags);
305
306         if (name == NULL) {
307                 unsigned int last;
308
309                 if (gd->flags & GD_FLG_POSTSTOP)
310                         return 0;
311
312                 if (post_bootmode_get (&last) & POST_POWERTEST) {
313                         if (last & POST_FAIL_SAVE) {
314                                 last &= ~POST_FAIL_SAVE;
315                                 gd->flags |= GD_FLG_POSTFAIL;
316                         }
317                         if (last < post_list_size &&
318                                 (flags & test_flags[last] & POST_ALWAYS) &&
319                                 (flags & test_flags[last] & POST_MEM)) {
320
321                                 post_run_single (post_list + last,
322                                                  test_flags[last],
323                                                  flags | POST_REBOOT, last);
324
325                                 for (i = last + 1; i < post_list_size; i++) {
326                                         if (gd->flags & GD_FLG_POSTSTOP)
327                                                 break;
328                                         post_run_single (post_list + i,
329                                                          test_flags[i],
330                                                          flags, i);
331                                 }
332                         }
333                 } else {
334                         for (i = 0; i < post_list_size; i++) {
335                                 if (gd->flags & GD_FLG_POSTSTOP)
336                                         break;
337                                 post_run_single (post_list + i,
338                                                  test_flags[i],
339                                                  flags, i);
340                         }
341                 }
342
343                 return 0;
344         } else {
345                 for (i = 0; i < post_list_size; i++) {
346                         if (strcmp (post_list[i].cmd, name) == 0)
347                                 break;
348                 }
349
350                 if (i < post_list_size) {
351                         WATCHDOG_RESET();
352                         return post_run_single (post_list + i,
353                                                 test_flags[i],
354                                                 flags, i);
355                 } else {
356                         return -1;
357                 }
358         }
359 }
360
361 static int post_info_single (struct post_test *test, int full)
362 {
363         if (test->flags & POST_MANUAL) {
364                 if (full)
365                         printf ("%s - %s\n"
366                                 "  %s\n", test->cmd, test->name, test->desc);
367                 else
368                         printf ("  %-15s - %s\n", test->cmd, test->name);
369
370                 return 0;
371         } else {
372                 return -1;
373         }
374 }
375
376 int post_info (char *name)
377 {
378         unsigned int i;
379
380         if (name == NULL) {
381                 for (i = 0; i < post_list_size; i++) {
382                         post_info_single (post_list + i, 0);
383                 }
384
385                 return 0;
386         } else {
387                 for (i = 0; i < post_list_size; i++) {
388                         if (strcmp (post_list[i].cmd, name) == 0)
389                                 break;
390                 }
391
392                 if (i < post_list_size) {
393                         return post_info_single (post_list + i, 1);
394                 } else {
395                         return -1;
396                 }
397         }
398 }
399
400 int post_log (char *format, ...)
401 {
402         va_list args;
403         uint i;
404         char printbuffer[CONFIG_SYS_PBSIZE];
405
406         va_start (args, format);
407
408         /* For this to work, printbuffer must be larger than
409          * anything we ever want to print.
410          */
411         i = vsprintf (printbuffer, format, args);
412         va_end (args);
413
414 #ifdef CONFIG_LOGBUFFER
415         /* Send to the logbuffer */
416         logbuff_log (printbuffer);
417 #else
418         /* Send to the stdout file */
419         puts (printbuffer);
420 #endif
421
422         return 0;
423 }
424
425 #ifdef CONFIG_NEEDS_MANUAL_RELOC
426 void post_reloc (void)
427 {
428         unsigned int i;
429
430         /*
431          * We have to relocate the test table manually
432          */
433         for (i = 0; i < post_list_size; i++) {
434                 ulong addr;
435                 struct post_test *test = post_list + i;
436
437                 if (test->name) {
438                         addr = (ulong) (test->name) + gd->reloc_off;
439                         test->name = (char *) addr;
440                 }
441
442                 if (test->cmd) {
443                         addr = (ulong) (test->cmd) + gd->reloc_off;
444                         test->cmd = (char *) addr;
445                 }
446
447                 if (test->desc) {
448                         addr = (ulong) (test->desc) + gd->reloc_off;
449                         test->desc = (char *) addr;
450                 }
451
452                 if (test->test) {
453                         addr = (ulong) (test->test) + gd->reloc_off;
454                         test->test = (int (*)(int flags)) addr;
455                 }
456
457                 if (test->init_f) {
458                         addr = (ulong) (test->init_f) + gd->reloc_off;
459                         test->init_f = (int (*)(void)) addr;
460                 }
461
462                 if (test->reloc) {
463                         addr = (ulong) (test->reloc) + gd->reloc_off;
464                         test->reloc = (void (*)(void)) addr;
465
466                         test->reloc();
467                 }
468         }
469 }
470 #endif
471
472
473 /*
474  * Some tests (e.g. SYSMON) need the time when post_init_f started,
475  * but we cannot use get_timer() at this point.
476  *
477  * On PowerPC we implement it using the timebase register.
478  */
479 unsigned long post_time_ms (unsigned long base)
480 {
481 #ifdef CONFIG_PPC
482         return (unsigned long)(get_ticks () / (get_tbclk () / CONFIG_SYS_HZ)) - base;
483 #else
484 #warning "Not implemented yet"
485         return 0; /* Not implemented yet */
486 #endif
487 }