sbus glue for "en" ATM device (only works on sun4c due to lack of support

for IOMMU)

1 files changed, 171 insertions, 0 deletions

diff --git a/sys/arch/sparc/dev/if_en_sbus.c b/sys/arch/sparc/dev/if_en_sbus.c
new file mode 100644
index 00000000000..45e1bb3bc5e
--- /dev/null
+++ b/sys/arch/sparc/dev/if_en_sbus.c
@@ -0,0 +1,171 @@
+/*	$OpenBSD: if_en_sbus.c,v 1.1 1996/06/21 15:38:40 chuck Exp $	*/
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor
+ * 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 Charles D. Cranor.
+ * 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.
+ */
+
+/*
+ *
+ * i f _ e n _ s b u s . c  
+ *
+ * author: Chuck Cranor <chuck@ccrc.wustl.edu>
+ * started: spring, 1996.
+ *
+ * SBUS glue for the eni155s card.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/device.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+
+#include <net/if.h>
+
+#include <machine/autoconf.h>
+#include <machine/cpu.h>
+
+#include <sparc/dev/sbusvar.h>
+
+#include <dev/ic/midwayreg.h>
+#include <dev/ic/midwayvar.h>
+
+
+/*
+ * local structures
+ */
+
+struct en_sbus_softc {
+  /* bus independent stuff */
+  struct en_softc esc;		/* includes "device" structure */
+
+  /* sbus glue */
+  struct sbusdev sc_sd;		/* sbus device */
+  struct intrhand sc_ih;	/* interrupt vectoring */
+};
+
+/*
+ * local defines (SBUS specific stuff)
+ */
+
+#define EN_IPL 5
+
+/*
+ * prototypes
+ */
+
+static	int en_sbus_match __P((struct device *, void *, void *));
+static	void en_sbus_attach __P((struct device *, struct device *, void *));
+
+/*
+ * SBUS autoconfig attachments
+ */
+
+struct cfattach en_sbus_ca = {
+    sizeof(struct en_sbus_softc), en_sbus_match, en_sbus_attach,
+};
+
+/***********************************************************************/
+
+/*
+ * autoconfig stuff
+ */
+
+static int en_sbus_match(parent, match, aux)
+
+struct device *parent;
+void *match;
+void *aux;
+
+{
+  struct cfdata *cf = match;
+  struct confargs *ca = aux;
+  register struct romaux *ra = &ca->ca_ra;
+
+  if (strcmp("ENI-155s", ra->ra_name))
+    return 0;
+  if (ca->ca_bustype == BUS_SBUS)
+    return (1);
+  
+  return 0;
+}
+
+
+static void en_sbus_attach(parent, self, aux)
+
+struct device *parent, *self;
+void *aux;
+
+{
+  struct en_softc *sc = (void *)self;
+  struct en_sbus_softc *scs = (void *)self;
+  struct confargs *ca = aux;
+  int lcv, iplcode;
+
+  printf("\n");
+
+  if (CPU_ISSUN4M) {
+    printf("%s: sun4m DMA not supported yet\n", sc->sc_dev.dv_xname);
+    return;
+  }
+
+  sc->en_base = (caddr_t) mapiodev(ca->ca_ra.ra_reg, 0, 4*1024*1024,
+        ca->ca_bustype);
+
+  if (ca->ca_ra.ra_nintr == 1) {
+    sc->ipl = ca->ca_ra.ra_intr[0].int_pri;
+  } else {
+    printf("%s: claims to be at the following IPLs: ", sc->sc_dev.dv_xname);
+    iplcode = 0;
+    for (lcv = 0 ; lcv < ca->ca_ra.ra_nintr ; lcv++) {
+      printf("%d ", ca->ca_ra.ra_intr[lcv].int_pri);
+      if (EN_IPL == ca->ca_ra.ra_intr[lcv].int_pri)
+        iplcode = lcv;
+    }
+    if (!iplcode) {
+      printf("%s: can't find the IPL we want (%d)\n", sc->sc_dev.dv_xname,
+		EN_IPL);
+      return;
+    }
+    printf("\n%s: we choose IPL %d\n", sc->sc_dev.dv_xname, EN_IPL);
+    sc->ipl = iplcode;
+  }
+  scs->sc_ih.ih_fun = en_intr;
+  scs->sc_ih.ih_arg = sc;
+  intr_establish(EN_IPL, &scs->sc_ih);
+
+  /*
+   * done SBUS specific stuff
+   */
+
+  en_attach(sc);
+
+}