PCI glue for the en ATM device.

1 files changed, 203 insertions, 0 deletions

diff --git a/sys/dev/pci/if_en_pci.c b/sys/dev/pci/if_en_pci.c
new file mode 100644
index 00000000000..9672b438b8a
--- /dev/null
+++ b/sys/dev/pci/if_en_pci.c
@@ -0,0 +1,203 @@
+/*	$OpenBSD: if_en_pci.c,v 1.1 1996/06/21 15:36:34 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 _ p c i . c  
+ *
+ * author: Chuck Cranor <chuck@ccrc.wustl.edu>
+ * started: spring, 1996.
+ *
+ * PCI glue for the eni155p 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 <dev/pci/pcivar.h>
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcidevs.h>
+
+#include <dev/ic/midwayreg.h>
+#include <dev/ic/midwayvar.h>
+
+
+/*
+ * local structures
+ */
+
+struct en_pci_softc {
+  /* bus independent stuff */
+  struct en_softc esc;		/* includes "device" structure */
+
+  /* PCI bus glue */
+  void *sc_ih;			/* interrupt handle */
+  pci_chipset_tag_t en_pc;	/* for PCI calls */
+
+};
+
+/*
+ * local defines (PCI specific stuff)
+ */
+
+/* 
+ * address of config base memory address register in PCI config space
+ * (this is card specific)
+ */
+        
+#define PCI_CBMA        0x10
+
+/*
+ * tonga (pci bridge)
+ */
+
+#define EN_TONGA        0x60            /* PCI config addr of tonga reg */
+
+#define TONGA_SWAP_DMA  0x80            /* endian swap control */
+#define TONGA_SWAP_BYTE 0x40
+#define TONGA_SWAP_WORD 0x20
+
+/*
+ * prototypes
+ */
+
+static	int en_pci_match __P((struct device *, void *, void *));
+static	void en_pci_attach __P((struct device *, struct device *, void *));
+
+/*
+ * PCI autoconfig attachments
+ */
+
+struct cfattach en_pci_ca = {
+    sizeof(struct en_pci_softc), en_pci_match, en_pci_attach,
+};
+
+/***********************************************************************/
+
+/*
+ * autoconfig stuff
+ */
+
+static int en_pci_match(parent, match, aux)
+
+struct device *parent;
+void *match;
+void *aux;
+
+{
+  struct pci_attach_args *pa = (struct pci_attach_args *) aux;
+
+  if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_EFFICIENTNETS)
+    return 0;
+
+  if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155P)
+    return 1;
+
+  return 0;
+}
+
+
+static void en_pci_attach(parent, self, aux)
+
+struct device *parent, *self;
+void *aux;
+
+{
+  struct en_softc *sc = (void *)self;
+  struct en_pci_softc *scp = (void *)self;
+  struct pci_attach_args *pa = aux;
+  bus_mem_addr_t membase;
+  pci_intr_handle_t ih;
+  const char *intrstr;
+  int retval;
+
+  printf("\n");
+
+  sc->en_bc = pa->pa_bc;
+  scp->en_pc = pa->pa_pc;
+
+  /*
+   * interrupt map
+   */
+
+  if (pci_intr_map(scp->en_pc, pa->pa_intrtag, pa->pa_intrpin, 
+					pa->pa_intrline, &ih)) {
+    printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
+    return;
+  }
+  intrstr = pci_intr_string(scp->en_pc, ih);
+  scp->sc_ih = pci_intr_establish(scp->en_pc, ih, IPL_NET, en_intr, sc);
+  if (scp->sc_ih == NULL) {
+    printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname);
+    if (intrstr != NULL)
+      printf(" at %s", intrstr);
+    printf("\n");
+    return;
+  }
+  printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
+  sc->ipl = 1; /* XXX */
+
+  /*
+   * memory map
+   */
+
+  retval = pci_mem_find(scp->en_pc, pa->pa_tag, PCI_CBMA,
+				&membase, &sc->en_obmemsz, NULL);
+  if (retval == 0)
+    retval = bus_mem_map(sc->en_bc, membase, sc->en_obmemsz, 0, &sc->en_base);
+ 
+  if (retval) {
+    printf("%s: couldn't map memory\n", sc->sc_dev.dv_xname);
+    return;
+  }
+
+  /*
+   * set up swapping
+   */
+
+  pci_conf_write(scp->en_pc, pa->pa_tag, EN_TONGA, 
+		(TONGA_SWAP_DMA|TONGA_SWAP_WORD));
+
+  /*
+   * done PCI specific stuff
+   */
+
+  en_attach(sc);
+
+}