Merry Christmas Mickey!

First cut at osiop driver (LSI Logic/Symbios/NCR 53C710). For hppa
only at the moment.

Functional for the most part, but there are known problems:

1) SCSI_CHECK/REQUEST_SENSE not handled at all - simply returns a
zero'ed scsi_sense_data buffer. As a result all osiop sc_link's are
created with the ADEV_NODOORLOCK quirk to suppress PREVENT_ALLOW
commands from being issued (and failing) during probe.

2) Sync negotiation (wide is not supported on this chip) needs to be
validated due to some ominous comments in the source about being valid
only for the 33Mhz Zeus board.

3) Probe message needs fixing/completion to issue useful info. See 2).

4) Timeout/hangs occur under heavy load, e.g. make builds.

From NetBSD.

ok mickey@

1 files changed, 213 insertions, 0 deletions

diff --git a/sys/arch/hppa/gsc/osiop_gsc.c b/sys/arch/hppa/gsc/osiop_gsc.c
new file mode 100644
index 00000000000..1ad2728258d
--- /dev/null
+++ b/sys/arch/hppa/gsc/osiop_gsc.c
@@ -0,0 +1,213 @@
+/*	$OpenBSD: osiop_gsc.c,v 1.1 2003/01/08 02:11:38 krw Exp $	*/
+/*	$NetBSD: osiop_gsc.c,v 1.6 2002/10/02 05:17:50 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2001 Matt Fredette.  All rights reserved.
+ * Copyright (c) 2001 Izumi Tsutsui.  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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+ */
+
+/*	$OpenBSD: osiop_gsc.c,v 1.1 2003/01/08 02:11:38 krw Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * 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 Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/buf.h>
+#include <sys/malloc.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <machine/cpu.h>
+#include <machine/intr.h>
+#include <machine/iomod.h>
+#include <machine/autoconf.h>
+#include <machine/bus.h>
+
+#include <dev/ic/osiopreg.h>
+#include <dev/ic/osiopvar.h>
+
+#include <hppa/dev/cpudevs.h>
+#include <hppa/gsc/gscbusvar.h>
+/* #include <hppa/hppa/machdep.h> */
+
+#define OSIOP_GSC_RESET         0x0000
+#define	OSIOP_GSC_OFFSET	0x0100
+
+int osiop_gsc_match(struct device *, void *, void *);
+void osiop_gsc_attach(struct device *, struct device *, void *);
+int osiop_gsc_intr(void *);
+
+struct cfattach osiop_ca = {
+	sizeof(struct osiop_softc),
+    	osiop_gsc_match,
+	osiop_gsc_attach
+};
+
+int
+osiop_gsc_match(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct gsc_attach_args *ga = aux;
+	bus_space_handle_t ioh;
+	int rv = 1;
+
+	if (ga->ga_type.iodc_type != HPPA_TYPE_FIO ||
+	    (ga->ga_type.iodc_sv_model != HPPA_FIO_GSCSI &&
+	     ga->ga_type.iodc_sv_model != HPPA_FIO_SCSI))
+		return 0;
+
+	if (bus_space_map(ga->ga_iot, ga->ga_hpa, 
+			  OSIOP_GSC_OFFSET + OSIOP_NREGS, 0, &ioh))
+		return 0;
+
+
+	bus_space_unmap(ga->ga_iot, ioh, OSIOP_GSC_OFFSET + OSIOP_NREGS);
+	return rv;
+}
+
+void
+osiop_gsc_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	register struct osiop_softc *sc = (void *)self;
+	register struct gsc_attach_args *ga = aux;
+	bus_space_handle_t ioh;
+
+	sc->sc_bst = ga->ga_iot;
+	sc->sc_dmat = ga->ga_dmatag;
+	if (bus_space_map(sc->sc_bst, ga->ga_hpa,
+			  OSIOP_GSC_OFFSET + OSIOP_NREGS, 0, &ioh))
+		panic("osiop_gsc_attach: couldn't map I/O ports");
+	if (bus_space_subregion(sc->sc_bst, ioh, 
+				OSIOP_GSC_OFFSET, OSIOP_NREGS, &sc->sc_reg))
+		panic("osiop_gsc_attach: couldn't get chip ports");
+
+	sc->sc_clock_freq = ga->ga_ca.ca_pdc_iodc_read->filler2[14] / 1000000;
+	if (!sc->sc_clock_freq)
+		sc->sc_clock_freq = 50;
+
+	if (ga->ga_ca.ca_type.iodc_sv_model == HPPA_FIO_GSCSI) {
+		sc->sc_ctest7 = 0; /* | OSIOP_CTEST7_TT1 */
+		sc->sc_dcntl = OSIOP_DCNTL_EA;
+	} else {
+		sc->sc_ctest7 = 0;
+		sc->sc_dcntl = 0;
+	}
+
+	sc->sc_flags = 0;
+	sc->sc_id = 7;
+
+	/*
+	 * Reset the SCSI subsystem.
+	 */
+	bus_space_write_1(sc->sc_bst, ioh, OSIOP_GSC_RESET, 0);
+	DELAY(1000);
+
+	/*
+	 * Call common attachment
+	 */
+#ifdef OSIOP_DEBUG
+	{
+		extern int osiop_debug;
+		osiop_debug = -1;
+	}
+#endif /* OSIOP_DEBUG */
+	osiop_attach(sc);
+
+	(void)gsc_intr_establish((struct gsc_softc *)parent, IPL_BIO,
+				 ga->ga_irq, osiop_gsc_intr, sc, &sc->sc_dev);
+}
+
+/*
+ * interrupt handler
+ */
+int
+osiop_gsc_intr(arg)
+	void *arg;
+{
+	struct osiop_softc *sc = arg;
+	u_int8_t istat;
+
+	/* This is potentially nasty, since the IRQ is level triggered... */
+	if (sc->sc_flags & OSIOP_INTSOFF)
+		return (0);
+
+	istat = osiop_read_1(sc, OSIOP_ISTAT);
+
+	if ((istat & (OSIOP_ISTAT_SIP | OSIOP_ISTAT_DIP)) == 0)
+		return (0);
+
+	/* Save interrupt details for the back-end interrupt handler */
+	sc->sc_sstat0 = osiop_read_1(sc, OSIOP_SSTAT0);
+	sc->sc_istat = istat;
+	/*
+	 * Per page 4-18 of the LSI 53C710 Technical Manual,
+	 * "insert a delay equivalent to 12 BCLK periods between
+	 * the reads [of DSTAT and SSTAT0] to ensure that the
+	 * interrupts clear properly."
+	 */
+	DELAY(100);
+	sc->sc_dstat = osiop_read_1(sc, OSIOP_DSTAT);
+
+	/* Deal with the interrupt */
+	osiop_intr(sc);
+
+	/* Blink the LED. */
+	/* hp700_led_blink(HP700_LED_DISK); */
+
+	return (1);
+}