[unix-history] / usr / src / sys / vax / bi / bi.c

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)bi.c	7.4 (Berkeley) 12/16/90
 */

/*
 * VAXBI specific routines.
 */

#include "sys/param.h"
#include "../include/cpu.h"
#include "../include/mtpr.h"
#include "../vax/nexus.h"
#include "bireg.h"

bi_reset(bi)
	register struct biiregs *bi;
{

	bi->bi_csr |= BICSR_NRST;
	DELAY(10000);		/* ??? */
}

/*
 * Reset with self test.  Return true iff reset fails.
 * BEWARE, THIS RESETS THE BI ARBITRATION LEVEL TO ARB_NONE
 * does self test ever cause a bi bus error?
 */
bi_selftest(bi)
	register struct biiregs *bi;
{
	register int timo;

	bi->bi_csr |= BICSR_ARB_NONE;	/* why? */
	bi->bi_csr |= BICSR_STS | BICSR_INIT;/* must this be separate? */
	DELAY(50);			/* why? */
	timo = todr() + 1000;
	while (bi->bi_csr & BICSR_BROKE) {
		if (todr() > timo)	/* reset failed */
			return (-1);
	}
	return (0);			/* reset OK */
}

/*
 * THIS SHOULD PROBABLY WORK MORE LIKE ubaerror()
 * (but then we would need to be able to reset BI nodes)
 * (we need a per-BI-device driver structure!)
 */
bi_buserr(binum)
	int binum;
{
	register struct bi_node *bi;
	register int node;
	extern int bi_nodes;
	extern int cold;

	printf("vaxbi%d: bus error\n", binum);
	bi = (struct bi_node *) &nexus[binum * NNODEBI];/* XXX */
	for (node = 0; node < 16; node++, bi++) {
		if ((bi_nodes & (1 << node)) == 0)	/* XXX crude */
			continue;
		printf("node %x: ber=%b\n", node, bi->biic.bi_ber, BIBER_BITS);
	}
	panic("bi_buserr");
}
Commit	Line	Data
a196a004	1	/*
35962040 KB	2	* Copyright (c) 1988 Regents of the University of California.
35962040 KB	3	* All rights reserved.
a196a004	4	*
35962040 KB	5	* This code is derived from software contributed to Berkeley by
	6	* Chris Torek.
	7	*
c0567266 KB	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in the
	15	* documentation and/or other materials provided with the distribution.
	16	* 3. All advertising materials mentioning features or use of this software
	17	* must display the following acknowledgement:
	18	* This product includes software developed by the University of
	19	* California, Berkeley and its contributors.
	20	* 4. Neither the name of the University nor the names of its contributors
	21	* may be used to endorse or promote products derived from this software
	22	* without specific prior written permission.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	34	* SUCH DAMAGE.
af359dea C	35	*
af359dea C	36	* @(#)bi.c 7.4 (Berkeley) 12/16/90
35962040 KB	37	*/
	38
	39	/*
a196a004 MK	40	* VAXBI specific routines.
	41	*/
	42
b28b3a13 KB	43	#include "sys/param.h"
	44	#include "../include/cpu.h"
	45	#include "../include/mtpr.h"
a196a004	46	#include "../vax/nexus.h"
a196a004 MK	47	#include "bireg.h"
	48
	49	bi_reset(bi)
	50	register struct biiregs *bi;
	51	{
	52
	53	bi->bi_csr \|= BICSR_NRST;
	54	DELAY(10000); /* ??? */
	55	}
	56
	57	/*
	58	* Reset with self test. Return true iff reset fails.
	59	* BEWARE, THIS RESETS THE BI ARBITRATION LEVEL TO ARB_NONE
	60	* does self test ever cause a bi bus error?
	61	*/
	62	bi_selftest(bi)
	63	register struct biiregs *bi;
	64	{
	65	register int timo;
	66
	67	bi->bi_csr \|= BICSR_ARB_NONE; /* why? */
	68	bi->bi_csr \|= BICSR_STS \| BICSR_INIT;/* must this be separate? */
	69	DELAY(50); /* why? */
	70	timo = todr() + 1000;
	71	while (bi->bi_csr & BICSR_BROKE) {
	72	if (todr() > timo) /* reset failed */
	73	return (-1);
	74	}
	75	return (0); /* reset OK */
	76	}
	77
	78	/*
	79	* THIS SHOULD PROBABLY WORK MORE LIKE ubaerror()
	80	* (but then we would need to be able to reset BI nodes)
	81	* (we need a per-BI-device driver structure!)
	82	*/
	83	bi_buserr(binum)
	84	int binum;
	85	{
	86	register struct bi_node *bi;
	87	register int node;
	88	extern int bi_nodes;
	89	extern int cold;
	90
	91	printf("vaxbi%d: bus error\n", binum);
	92	bi = (struct bi_node ) &nexus[binum NNODEBI];/* XXX */
	93	for (node = 0; node < 16; node++, bi++) {
	94	if ((bi_nodes & (1 << node)) == 0) /* XXX crude */
	95	continue;
	96	printf("node %x: ber=%b\n", node, bi->biic.bi_ber, BIBER_BITS);
	97	}
	98	panic("bi_buserr");
	99	}