post/post.c - boot/u-boot-linaro-stable - Git at Google

 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 of
  * the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */

 #include <common.h>
 #include <console.h>
 #include <watchdog.h>
 #include <post.h>

 #ifdef CONFIG_LOGBUFFER
 #include <logbuff.h>
 #endif

 #ifdef CONFIG_POST

 #define POST_MAX_NUMBER		32

 #define BOOTMODE_MAGIC	0xDEAD0000

 int post_init_f (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;

 	int res = 0;
 	unsigned int i;

 	for (i = 0; i < post_list_size; i++) {
 		struct post_test *test = post_list + i;

 		if (test->init_f && test->init_f()) {
 			res = -1;
 		}
 	}

 	gd->post_init_f_time = post_time_ms(0);
 	if (!gd->post_init_f_time)
 	{
 		printf("post/post.c: post_time_ms seems not to be implemented\n");
 	}

 	return res;
 }

 void post_bootmode_init (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	int bootmode = post_bootmode_get (0);

 	if (bootmode == 0) {
 		bootmode = POST_POWERON;
 	} else if (bootmode == POST_POWERON) {
 		bootmode = POST_POWERNORMAL;
 	} else {
 		return;
 	}

 	post_word_store (BOOTMODE_MAGIC | bootmode);
 	/* Reset activity record */
 	gd->post_log_word = 0;
 }

 int post_bootmode_get (unsigned int *last_test)
 {
 	unsigned long word = post_word_load ();
 	int bootmode;

 	if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
 		return 0;
 	}

 	bootmode = word & 0xFF;

 	if (last_test && (bootmode & POST_POWERTEST)) {
 		*last_test = (word >> 8) & 0xFF;
 	}

 	return bootmode;
 }

 void post_bootmode_clear (void)
 {
 	post_word_store (0);
 }

 /* POST tests run before relocation only mark status bits .... */
 static void post_log_mark_start ( unsigned long testid )
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	gd->post_log_word |= (testid)<<16;
 }

 static void post_log_mark_succ ( unsigned long testid )
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	gd->post_log_word |= testid;
 }

 /* ... and the messages are output once we are relocated */
 void post_output_backlog ( void )
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	int j;

 	for (j = 0; j < post_list_size; j++) {
 		if (gd->post_log_word & (post_list[j].testid<<16)) {
 			post_log ("POST %s ", post_list[j].cmd);
 			if (gd->post_log_word & post_list[j].testid)
 				post_log ("PASSED\n");
 			else
 				post_log ("FAILED\n");
 		}
 	}
 }

 static void post_bootmode_test_on (unsigned int last_test)
 {
 	unsigned long word = post_word_load ();

 	word |= POST_POWERTEST;

 	word |= (last_test & 0xFF) << 8;

 	post_word_store (word);
 }

 static void post_bootmode_test_off (void)
 {
 	unsigned long word = post_word_load ();

 	word &= ~POST_POWERTEST;

 	post_word_store (word);
 }

 static void post_get_flags (int *test_flags)
 {
 	int flag[] = { POST_POWERON, POST_POWERNORMAL, POST_POWERFAIL };
 	char *var[] = { "post_poweron", "post_normal", "post_shutdown" };
 	int varnum = sizeof (var) / sizeof (var[0]);
 	char list[128];			/* long enough for POST list */
 	char *name;
 	char *s;
 	int last;
 	int i, j;

 	for (j = 0; j < post_list_size; j++) {
 		test_flags[j] = post_list[j].flags;
 	}

 	for (i = 0; i < varnum; i++) {
 		if (getenv_r (var[i], list, sizeof (list)) <= 0)
 			continue;

 		for (j = 0; j < post_list_size; j++) {
 			test_flags[j] &= ~flag[i];
 		}

 		last = 0;
 		name = list;
 		while (!last) {
 			while (*name && *name == ' ')
 				name++;
 			if (*name == 0)
 				break;
 			s = name + 1;
 			while (*s && *s != ' ')
 				s++;
 			if (*s == 0)
 				last = 1;
 			else
 				*s = 0;

 			for (j = 0; j < post_list_size; j++) {
 				if (strcmp (post_list[j].cmd, name) == 0) {
 					test_flags[j] |= flag[i];
 					break;
 				}
 			}

 			if (j == post_list_size) {
 				printf ("No such test: %s\n", name);
 			}

 			name = s + 1;
 		}
 	}
 }

 static int post_run_single (struct post_test *test,
 				int test_flags, int flags, unsigned int i)
 {
 	if ((flags & test_flags & POST_ALWAYS) &&
 		(flags & test_flags & POST_MEM)) {
 		WATCHDOG_RESET ();

 		if (!(flags & POST_REBOOT)) {
 			if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 				post_bootmode_test_on (i);
 			}

 			if (test_flags & POST_PREREL)
 				post_log_mark_start ( test->testid );
 			else
 			post_log ("POST %s ", test->cmd);
 		}

 		if (test_flags & POST_PREREL) {
 			if ((*test->test) (flags) == 0)
 				post_log_mark_succ ( test->testid );
 		} else {
 		if ((*test->test) (flags) != 0)
 			post_log ("FAILED\n");
 		else
 			post_log ("PASSED\n");
 		}

 		if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 			post_bootmode_test_off ();
 		}

 		return 0;
 	} else {
 		return -1;
 	}
 }

 int post_run (char *name, int flags)
 {
 	unsigned int i;
 	int test_flags[POST_MAX_NUMBER];

 	post_get_flags (test_flags);

 	if (name == NULL) {
 		unsigned int last;

 		if (post_bootmode_get (&last) & POST_POWERTEST) {
 			if (last < post_list_size &&
 				(flags & test_flags[last] & POST_ALWAYS) &&
 				(flags & test_flags[last] & POST_MEM)) {

 				post_run_single (post_list + last,
 						 test_flags[last],
 						 flags | POST_REBOOT, last);

 				for (i = last + 1; i < post_list_size; i++) {
 					post_run_single (post_list + i,
 							 test_flags[i],
 							 flags, i);
 				}
 			}
 		} else {
 			for (i = 0; i < post_list_size; i++) {
 				post_run_single (post_list + i,
 						 test_flags[i],
 						 flags, i);
 			}
 		}

 		return 0;
 	} else {
 		for (i = 0; i < post_list_size; i++) {
 			if (strcmp (post_list[i].cmd, name) == 0)
 				break;
 		}

 		if (i < post_list_size) {
 			return post_run_single (post_list + i,
 						test_flags[i],
 						flags, i);
 		} else {
 			return -1;
 		}
 	}
 }

 static int post_info_single (struct post_test *test, int full)
 {
 	if (test->flags & POST_MANUAL) {
 		if (full)
 			printf ("%s - %s\n"
 				"  %s\n", test->cmd, test->name, test->desc);
 		else
 			printf ("  %-15s - %s\n", test->cmd, test->name);

 		return 0;
 	} else {
 		return -1;
 	}
 }

 int post_info (char *name)
 {
 	unsigned int i;

 	if (name == NULL) {
 		for (i = 0; i < post_list_size; i++) {
 			post_info_single (post_list + i, 0);
 		}

 		return 0;
 	} else {
 		for (i = 0; i < post_list_size; i++) {
 			if (strcmp (post_list[i].cmd, name) == 0)
 				break;
 		}

 		if (i < post_list_size) {
 			return post_info_single (post_list + i, 1);
 		} else {
 			return -1;
 		}
 	}
 }

 int post_log (char *format, ...)
 {
 	va_list args;
 	uint i;
 	char printbuffer[CFG_PBSIZE];

 	va_start (args, format);

 	/* For this to work, printbuffer must be larger than
 	 * anything we ever want to print.
 	 */
 	i = vsprintf (printbuffer, format, args);
 	va_end (args);

 #ifdef CONFIG_LOGBUFFER
 	/* Send to the logbuffer */
 	logbuff_log (printbuffer);
 #else
 	/* Send to the stdout file */
 	puts (printbuffer);
 #endif

 	return 0;
 }

 void post_reloc (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;

 	unsigned int i;

 	/*
 	 * We have to relocate the test table manually
 	 */
 	for (i = 0; i < post_list_size; i++) {
 		ulong addr;
 		struct post_test *test = post_list + i;

 		if (test->name) {
 			addr = (ulong) (test->name) + gd->reloc_off;
 			test->name = (char *) addr;
 		}

 		if (test->cmd) {
 			addr = (ulong) (test->cmd) + gd->reloc_off;
 			test->cmd = (char *) addr;
 		}

 		if (test->desc) {
 			addr = (ulong) (test->desc) + gd->reloc_off;
 			test->desc = (char *) addr;
 		}

 		if (test->test) {
 			addr = (ulong) (test->test) + gd->reloc_off;
 			test->test = (int (*)(int flags)) addr;
 		}

 		if (test->init_f) {
 			addr = (ulong) (test->init_f) + gd->reloc_off;
 			test->init_f = (int (*)(void)) addr;
 		}

 		if (test->reloc) {
 			addr = (ulong) (test->reloc) + gd->reloc_off;
 			test->reloc = (void (*)(void)) addr;

 			test->reloc();
 		}
 	}
 }


 /*
  * Some tests (e.g. SYSMON) need the time when post_init_f started,
  * but we cannot use get_timer() at this point.
  *
  * On PowerPC we implement it using the timebase register.
  */
 unsigned long post_time_ms (unsigned long base)
 {
 #ifdef CONFIG_PPC
 	return (unsigned long)get_ticks () / (get_tbclk () / CFG_HZ) - base;
 #else
 	return 0; /* Not implemented yet */
 #endif
 }

 #endif /* CONFIG_POST */
	/*
	* (C) Copyright 2002
	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	*
	* See file CREDITS for list of people who contributed to this
	* project.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; either version 2 of
	* the License, or (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	* MA 02111-1307 USA
	*/

	#include <common.h>
	#include <console.h>
	#include <watchdog.h>
	#include <post.h>

	#ifdef CONFIG_LOGBUFFER
	#include <logbuff.h>
	#endif

	#ifdef CONFIG_POST

	#define POST_MAX_NUMBER 32

	#define BOOTMODE_MAGIC 0xDEAD0000

	int post_init_f (void)
	{
	DECLARE_GLOBAL_DATA_PTR;

	int res = 0;
	unsigned int i;

	for (i = 0; i < post_list_size; i++) {
	struct post_test *test = post_list + i;

	if (test->init_f && test->init_f()) {
	res = -1;
	}
	}

	gd->post_init_f_time = post_time_ms(0);
	if (!gd->post_init_f_time)
	{
	printf("post/post.c: post_time_ms seems not to be implemented\n");
	}

	return res;
	}

	void post_bootmode_init (void)
	{
	DECLARE_GLOBAL_DATA_PTR;
	int bootmode = post_bootmode_get (0);

	if (bootmode == 0) {
	bootmode = POST_POWERON;
	} else if (bootmode == POST_POWERON) {
	bootmode = POST_POWERNORMAL;
	} else {
	return;
	}

	post_word_store (BOOTMODE_MAGIC \| bootmode);
	/* Reset activity record */
	gd->post_log_word = 0;
	}

	int post_bootmode_get (unsigned int *last_test)
	{
	unsigned long word = post_word_load ();
	int bootmode;

	if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
	return 0;
	}

	bootmode = word & 0xFF;

	if (last_test && (bootmode & POST_POWERTEST)) {
	*last_test = (word >> 8) & 0xFF;
	}

	return bootmode;
	}

	void post_bootmode_clear (void)
	{
	post_word_store (0);
	}

	/* POST tests run before relocation only mark status bits .... */
	static void post_log_mark_start ( unsigned long testid )
	{
	DECLARE_GLOBAL_DATA_PTR;
	gd->post_log_word \|= (testid)<<16;
	}

	static void post_log_mark_succ ( unsigned long testid )
	{
	DECLARE_GLOBAL_DATA_PTR;
	gd->post_log_word \|= testid;
	}

	/* ... and the messages are output once we are relocated */
	void post_output_backlog ( void )
	{
	DECLARE_GLOBAL_DATA_PTR;
	int j;

	for (j = 0; j < post_list_size; j++) {
	if (gd->post_log_word & (post_list[j].testid<<16)) {
	post_log ("POST %s ", post_list[j].cmd);
	if (gd->post_log_word & post_list[j].testid)
	post_log ("PASSED\n");
	else
	post_log ("FAILED\n");
	}
	}
	}

	static void post_bootmode_test_on (unsigned int last_test)
	{
	unsigned long word = post_word_load ();

	word \|= POST_POWERTEST;

	word \|= (last_test & 0xFF) << 8;

	post_word_store (word);
	}

	static void post_bootmode_test_off (void)
	{
	unsigned long word = post_word_load ();

	word &= ~POST_POWERTEST;

	post_word_store (word);
	}

	static void post_get_flags (int *test_flags)
	{
	int flag[] = { POST_POWERON, POST_POWERNORMAL, POST_POWERFAIL };
	char *var[] = { "post_poweron", "post_normal", "post_shutdown" };
	int varnum = sizeof (var) / sizeof (var[0]);
	char list[128]; /* long enough for POST list */
	char *name;
	char *s;
	int last;
	int i, j;

	for (j = 0; j < post_list_size; j++) {
	test_flags[j] = post_list[j].flags;
	}

	for (i = 0; i < varnum; i++) {
	if (getenv_r (var[i], list, sizeof (list)) <= 0)
	continue;

	for (j = 0; j < post_list_size; j++) {
	test_flags[j] &= ~flag[i];
	}

	last = 0;
	name = list;
	while (!last) {
	while (name && name == ' ')
	name++;
	if (*name == 0)
	break;
	s = name + 1;
	while (s && s != ' ')
	s++;
	if (*s == 0)
	last = 1;
	else
	*s = 0;

	for (j = 0; j < post_list_size; j++) {
	if (strcmp (post_list[j].cmd, name) == 0) {
	test_flags[j] \|= flag[i];
	break;
	}
	}

	if (j == post_list_size) {
	printf ("No such test: %s\n", name);
	}

	name = s + 1;
	}
	}
	}

	static int post_run_single (struct post_test *test,
	int test_flags, int flags, unsigned int i)
	{
	if ((flags & test_flags & POST_ALWAYS) &&
	(flags & test_flags & POST_MEM)) {
	WATCHDOG_RESET ();

	if (!(flags & POST_REBOOT)) {
	if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
	post_bootmode_test_on (i);
	}

	if (test_flags & POST_PREREL)
	post_log_mark_start ( test->testid );
	else
	post_log ("POST %s ", test->cmd);
	}

	if (test_flags & POST_PREREL) {
	if ((*test->test) (flags) == 0)
	post_log_mark_succ ( test->testid );
	} else {
	if ((*test->test) (flags) != 0)
	post_log ("FAILED\n");
	else
	post_log ("PASSED\n");
	}

	if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
	post_bootmode_test_off ();
	}

	return 0;
	} else {
	return -1;
	}
	}

	int post_run (char *name, int flags)
	{
	unsigned int i;
	int test_flags[POST_MAX_NUMBER];

	post_get_flags (test_flags);

	if (name == NULL) {
	unsigned int last;

	if (post_bootmode_get (&last) & POST_POWERTEST) {
	if (last < post_list_size &&
	(flags & test_flags[last] & POST_ALWAYS) &&
	(flags & test_flags[last] & POST_MEM)) {

	post_run_single (post_list + last,
	test_flags[last],
	flags \| POST_REBOOT, last);

	for (i = last + 1; i < post_list_size; i++) {
	post_run_single (post_list + i,
	test_flags[i],
	flags, i);
	}
	}
	} else {
	for (i = 0; i < post_list_size; i++) {
	post_run_single (post_list + i,
	test_flags[i],
	flags, i);
	}
	}

	return 0;
	} else {
	for (i = 0; i < post_list_size; i++) {
	if (strcmp (post_list[i].cmd, name) == 0)
	break;
	}

	if (i < post_list_size) {
	return post_run_single (post_list + i,
	test_flags[i],
	flags, i);
	} else {
	return -1;
	}
	}
	}

	static int post_info_single (struct post_test *test, int full)
	{
	if (test->flags & POST_MANUAL) {
	if (full)
	printf ("%s - %s\n"
	" %s\n", test->cmd, test->name, test->desc);
	else
	printf (" %-15s - %s\n", test->cmd, test->name);

	return 0;
	} else {
	return -1;
	}
	}

	int post_info (char *name)
	{
	unsigned int i;

	if (name == NULL) {
	for (i = 0; i < post_list_size; i++) {
	post_info_single (post_list + i, 0);
	}

	return 0;
	} else {
	for (i = 0; i < post_list_size; i++) {
	if (strcmp (post_list[i].cmd, name) == 0)
	break;
	}

	if (i < post_list_size) {
	return post_info_single (post_list + i, 1);
	} else {
	return -1;
	}
	}
	}

	int post_log (char *format, ...)
	{
	va_list args;
	uint i;
	char printbuffer[CFG_PBSIZE];

	va_start (args, format);

	/* For this to work, printbuffer must be larger than
	* anything we ever want to print.
	*/
	i = vsprintf (printbuffer, format, args);
	va_end (args);

	#ifdef CONFIG_LOGBUFFER
	/* Send to the logbuffer */
	logbuff_log (printbuffer);
	#else
	/* Send to the stdout file */
	puts (printbuffer);
	#endif

	return 0;
	}

	void post_reloc (void)
	{
	DECLARE_GLOBAL_DATA_PTR;

	unsigned int i;

	/*
	* We have to relocate the test table manually
	*/
	for (i = 0; i < post_list_size; i++) {
	ulong addr;
	struct post_test *test = post_list + i;

	if (test->name) {
	addr = (ulong) (test->name) + gd->reloc_off;
	test->name = (char *) addr;
	}

	if (test->cmd) {
	addr = (ulong) (test->cmd) + gd->reloc_off;
	test->cmd = (char *) addr;
	}

	if (test->desc) {
	addr = (ulong) (test->desc) + gd->reloc_off;
	test->desc = (char *) addr;
	}

	if (test->test) {
	addr = (ulong) (test->test) + gd->reloc_off;
	test->test = (int (*)(int flags)) addr;
	}

	if (test->init_f) {
	addr = (ulong) (test->init_f) + gd->reloc_off;
	test->init_f = (int (*)(void)) addr;
	}

	if (test->reloc) {
	addr = (ulong) (test->reloc) + gd->reloc_off;
	test->reloc = (void (*)(void)) addr;

	test->reloc();
	}
	}
	}


	/*
	* Some tests (e.g. SYSMON) need the time when post_init_f started,
	* but we cannot use get_timer() at this point.
	*
	* On PowerPC we implement it using the timebase register.
	*/
	unsigned long post_time_ms (unsigned long base)
	{
	#ifdef CONFIG_PPC
	return (unsigned long)get_ticks () / (get_tbclk () / CFG_HZ) - base;
	#else
	return 0; /* Not implemented yet */
	#endif
	}

	#endif /* CONFIG_POST */