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    /*
     * (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
    
    
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    #ifdef CONFIG_POST
    
    #define POST_MAX_NUMBER		32
    
    #define BOOTMODE_MAGIC	0xDEAD0000
    
    void post_bootmode_init (void)
    {
    
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    	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;
    
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    }
    
    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");
    		}
    	}
    }
    
    
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    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);
    
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    		}
    
    
    		if (test_flags & POST_PREREL) {
    			if ((*test->test) (flags) == 0)
    				post_log_mark_succ ( test->testid );
    		} else {
    
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    		if ((*test->test) (flags) != 0)
    			post_log ("FAILED\n");
    		else
    			post_log ("PASSED\n");
    
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    		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);
    
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    				for (i = last + 1; i < post_list_size; i++) {
    
    					post_run_single (post_list + i,
    							 test_flags[i],
    							 flags, i);
    
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    				}
    			}
    		} else {
    			for (i = 0; i < post_list_size; i++) {
    
    				post_run_single (post_list + i,
    						 test_flags[i],
    						 flags, i);
    
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    			}
    		}
    
    		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);
    
    
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    	/* Send to the stdout file */
    	puts (printbuffer);
    
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    	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;
    		}
    	}
    }
    
    #endif /* CONFIG_POST */