[src/trunk]: src/sys/dev/qbus Moved from ../dec/qbus/dz_uba.c,v

[ragge <ragge%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5fe37729473d
branches:  trunk
changeset: 473280:5fe37729473d
user:      ragge <ragge%NetBSD.org@localhost>
date:      Thu May 27 16:02:50 1999 +0000

description:
Moved from ../dec/qbus/dz_uba.c,v

diffstat:

 sys/dev/qbus/dz_uba.c |  139 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 139 insertions(+), 0 deletions(-)

diffs (143 lines):

diff -r ab090855798f -r 5fe37729473d sys/dev/qbus/dz_uba.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/qbus/dz_uba.c     Thu May 27 16:02:50 1999 +0000
@@ -0,0 +1,139 @@
+/*     $NetBSD: dz_uba.c,v 1.6 1999/05/27 16:02:50 ragge Exp $ */
+/*
+ * Copyright (c) 1998 Ludd, University of Lule}, Sweden. All rights reserved.
+ * Copyright (c) 1996  Ken C. Wellsch.  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 at Ludd, University of 
+ *      Lule}, Sweden and its contributors.
+ * 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/ioctl.h>
+#include <sys/tty.h>
+#include <sys/proc.h>
+#include <sys/map.h>
+#include <sys/buf.h>
+#include <sys/conf.h>
+#include <sys/file.h>
+#include <sys/uio.h>
+#include <sys/kernel.h>
+#include <sys/syslog.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+#include <machine/pte.h>
+#include <machine/trap.h>
+#include <machine/scb.h>
+
+#include <dev/dec/qbus/ubareg.h>
+#include <dev/dec/qbus/ubavar.h>
+
+#include <dev/dec/qbus/dzreg.h>
+#include <dev/dec/qbus/dzvar.h>
+
+#include "ioconf.h"
+
+static int     dz_uba_match __P((struct device *, struct cfdata *, void *));
+static void    dz_uba_attach __P((struct device *, struct device *, void *));
+
+struct cfattach dz_uba_ca = {
+       sizeof(struct dz_softc), dz_uba_match, dz_uba_attach
+};
+
+/* Autoconfig handles: setup the controller to interrupt, */
+/* then complete the housecleaning for full operation */
+
+static int
+dz_uba_match(parent, cf, aux)
+        struct device *parent;
+       struct cfdata *cf;
+        void *aux;
+{
+       struct uba_attach_args *ua = aux;
+       bus_space_tag_t iot = ua->ua_iot;
+       bus_space_handle_t ioh = ua->ua_ioh;
+       register int n;
+
+       iot = iot; /* Silly GCC */
+       /* Reset controller to initialize, enable TX interrupts */
+       /* to catch floating vector info elsewhere when completed */
+
+       bus_space_write_2(iot, ioh, DZ_UBA_CSR, DZ_CSR_MSE | DZ_CSR_TXIE);
+       bus_space_write_1(iot, ioh, DZ_UBA_TCR, 1);
+
+       DELAY(100000);  /* delay 1/10 second */
+
+       bus_space_write_2(iot, ioh, DZ_UBA_CSR, DZ_CSR_RESET);
+
+       /* Now wait up to 3 seconds for reset/clear to complete. */
+
+       for (n = 0; n < 300; n++) {
+               DELAY(10000);
+               if ((bus_space_read_2(iot, ioh, DZ_UBA_CSR)&DZ_CSR_RESET) == 0)
+                       break;
+       }
+
+       /* If the RESET did not clear after 3 seconds, */
+       /* the controller must be broken. */
+
+       if (n >= 300)
+               return (0);
+
+       /* Register the TX interrupt handler */
+
+       ua->ua_ivec = dzxint;
+
+               return (1);
+}
+
+static void
+dz_uba_attach(parent, self, aux)
+        struct device *parent, *self;
+        void *aux;
+{
+       struct  dz_softc *sc = (void *)self;
+       register struct uba_attach_args *ua = aux;
+
+       sc->sc_iot = ua->ua_iot;
+       sc->sc_ioh = ua->ua_ioh;
+
+       sc->sc_dr.dr_csr = DZ_UBA_CSR;
+       sc->sc_dr.dr_rbuf = DZ_UBA_RBUF;
+       sc->sc_dr.dr_dtr = DZ_UBA_DTR;
+       sc->sc_dr.dr_break = DZ_UBA_BREAK;
+       sc->sc_dr.dr_tbuf = DZ_UBA_TBUF;
+       sc->sc_dr.dr_tcr = DZ_UBA_TCR;
+       sc->sc_dr.dr_dcd = DZ_UBA_DCD;
+       sc->sc_dr.dr_ring = DZ_UBA_RING;
+
+       sc->sc_type = DZ_DZ;
+
+       /* Now register the RX interrupt handler */
+       scb_vecalloc(ua->ua_cvec - 4, dzrint, self->dv_unit, SCB_ISTACK);
+
+       dzattach(sc);
+}