initial import of NetBSD tree

1 files changed, 192 insertions, 0 deletions

diff --git a/sys/arch/hp300/stand/fhpib.c b/sys/arch/hp300/stand/fhpib.c
new file mode 100644
index 00000000000..c20071c0ceb
--- /dev/null
+++ b/sys/arch/hp300/stand/fhpib.c
@@ -0,0 +1,192 @@
+/*	$NetBSD: fhpib.c,v 1.5 1995/08/05 16:47:42 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1982, 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ *
+ *	@(#)fhpib.c	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * 98625A/B HPIB driver
+ */
+
+#include <sys/param.h>
+#include <hp300/dev/fhpibreg.h>
+#include <hp300/stand/hpibvar.h>
+#include <hp300/stand/samachdep.h>
+
+fhpibinit(unit)
+	register int unit;
+{
+	register struct hpib_softc *hs = &hpib_softc[unit];
+	register struct fhpibdevice *hd = (struct fhpibdevice *)hs->sc_addr;
+
+	if (hd->hpib_cid != HPIBC)
+		return(0);
+	hs->sc_type = HPIBC;
+	hs->sc_ba = HPIBC_BA;
+	fhpibreset(unit);
+	return(1);
+}
+
+fhpibreset(unit)
+{
+	register struct hpib_softc *hs = &hpib_softc[unit];
+	register struct fhpibdevice *hd;
+
+	hd = (struct fhpibdevice *)hs->sc_addr;
+	hd->hpib_cid = 0xFF;
+	DELAY(100);
+	hd->hpib_cmd = CT_8BIT;
+	hd->hpib_ar = AR_ARONC;
+	hd->hpib_cmd |= CT_IFC;
+	hd->hpib_cmd |= CT_INITFIFO;
+	DELAY(100);
+	hd->hpib_cmd &= ~CT_IFC;
+	hd->hpib_cmd |= CT_REN;
+	hd->hpib_stat = ST_ATN;
+	hd->hpib_data = C_DCL;
+	DELAY(100000);
+}
+
+fhpibsend(unit, slave, sec, buf, cnt)
+	register char *buf;
+	register int cnt;
+{
+	register struct hpib_softc *hs = &hpib_softc[unit];
+	register struct fhpibdevice *hd;
+	int origcnt = cnt;
+
+	hd = (struct fhpibdevice *)hs->sc_addr;
+	hd->hpib_stat = 0;
+	hd->hpib_imask = IM_IDLE | IM_ROOM;
+	fhpibwait(hd, IM_IDLE);
+	hd->hpib_stat = ST_ATN;
+	hd->hpib_data = C_UNL;
+	hd->hpib_data = C_TAG + hs->sc_ba;
+	hd->hpib_data = C_LAG + slave;
+	if (sec != -1)
+		hd->hpib_data = C_SCG + sec;
+	fhpibwait(hd, IM_IDLE);
+	hd->hpib_stat = ST_WRITE;
+	if (cnt) {
+		while (--cnt) {
+			hd->hpib_data = *buf++;
+			if (fhpibwait(hd, IM_ROOM) < 0)
+				break;
+		}
+		hd->hpib_stat = ST_EOI;
+		hd->hpib_data = *buf;
+		if (fhpibwait(hd, IM_ROOM) < 0)
+			cnt++;
+		hd->hpib_stat = ST_ATN;
+		/* XXX: HP-UX claims bug with CS80 transparent messages */
+		if (sec == 0x12)
+			DELAY(150);
+		hd->hpib_data = C_UNL;
+		fhpibwait(hd, IM_IDLE);
+	}
+	hd->hpib_imask = 0;
+	return(origcnt - cnt);
+}
+
+fhpibrecv(unit, slave, sec, buf, cnt)
+	register char *buf;
+	register int cnt;
+{
+	register struct hpib_softc *hs = &hpib_softc[unit];
+	register struct fhpibdevice *hd;
+	int origcnt = cnt;
+
+	hd = (struct fhpibdevice *)hs->sc_addr;
+	hd->hpib_stat = 0;
+	hd->hpib_imask = IM_IDLE | IM_ROOM | IM_BYTE;
+	fhpibwait(hd, IM_IDLE);
+	hd->hpib_stat = ST_ATN;
+	hd->hpib_data = C_UNL;
+	hd->hpib_data = C_LAG + hs->sc_ba;
+	hd->hpib_data = C_TAG + slave;
+	if (sec != -1)
+		hd->hpib_data = C_SCG + sec;
+	fhpibwait(hd, IM_IDLE);
+	hd->hpib_stat = ST_READ0;
+	hd->hpib_data = 0;
+	if (cnt) {
+		while (--cnt >= 0) {
+			if (fhpibwait(hd, IM_BYTE) < 0)
+				break;
+			*buf++ = hd->hpib_data;
+		}
+		cnt++;
+		fhpibwait(hd, IM_ROOM);
+		hd->hpib_stat = ST_ATN;
+		hd->hpib_data = (slave == 31) ? C_UNA : C_UNT;
+		fhpibwait(hd, IM_IDLE);
+	}
+	hd->hpib_imask = 0;
+	return(origcnt - cnt);
+}
+
+fhpibppoll(unit)
+	register int unit;
+{
+	register struct hpib_softc *hs = &hpib_softc[unit];
+	register struct fhpibdevice *hd;
+	register int ppoll;
+
+	hd = (struct fhpibdevice *)hs->sc_addr;
+	hd->hpib_stat = 0;
+	hd->hpib_psense = 0;
+	hd->hpib_pmask = 0xFF;
+	hd->hpib_imask = IM_PPRESP | IM_PABORT;
+	DELAY(25);
+	hd->hpib_intr = IM_PABORT;
+	ppoll = hd->hpib_data;
+	if (hd->hpib_intr & IM_PABORT)
+		ppoll = 0;
+	hd->hpib_imask = 0;
+	hd->hpib_pmask = 0;
+	hd->hpib_stat = ST_IENAB;
+	return(ppoll);
+}
+
+fhpibwait(hd, x)
+	register struct fhpibdevice *hd;
+{
+	register int timo = 100000;
+
+	while ((hd->hpib_intr & x) == 0 && --timo)
+		;
+	if (timo == 0)
+		return(-1);
+	return(0);
+}