Driver for Sun GEM ethernet. Not ready yet.

From NetBSD

1 files changed, 193 insertions, 0 deletions

diff --git a/sys/dev/pci/if_gem_pci.c b/sys/dev/pci/if_gem_pci.c
new file mode 100644
index 00000000000..00e0cddf921
--- /dev/null
+++ b/sys/dev/pci/if_gem_pci.c
@@ -0,0 +1,193 @@
+/*	$NetBSD: if_gem_pci.c,v 1.1 2001/09/16 00:11:42 eeh Exp $ */
+
+/*
+ * 
+ * Copyright (C) 2001 Eduardo Horvath.
+ * 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.
+ *  
+ * 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.
+ *
+ */
+
+/*
+ * PCI bindings for Sun GEM ethernet controllers.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h> 
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+#include <sys/device.h>
+
+#include <machine/endian.h>
+
+#include <vm/vm.h>
+#include <uvm/uvm_extern.h>
+ 
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif
+
+#if NBPFILTER > 0 
+#include <net/bpf.h>
+#endif 
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/mii_bitbang.h>
+
+#include <dev/ic/gemreg.h>
+#include <dev/ic/gemvar.h>
+
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcidevs.h>
+
+struct gem_pci_softc {
+	struct	gem_softc	gsc_gem;	/* GEM device */
+	bus_space_tag_t		gsc_memt;
+	bus_space_handle_t	gsc_memh;
+	void			*gsc_ih;
+};
+
+int	gem_match_pci __P((struct device *, void *, void *));
+void	gem_attach_pci __P((struct device *, struct device *, void *));
+
+struct cfattach gem_pci_ca = {
+	sizeof(struct gem_pci_softc), gem_match_pci, gem_attach_pci
+};
+
+/*
+ * Attach routines need to be split out to different bus-specific files.
+ */
+
+int
+gem_match_pci(parent, cf, aux)
+	struct device *parent;
+	void *cf;
+	void *aux;
+{
+	struct pci_attach_args *pa = aux;
+
+	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 
+	       (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK ||
+		PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK))
+		return (1);
+
+	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 
+	       (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC ||
+		PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2))
+		return (1);
+
+	return (0);
+}
+
+void
+gem_attach_pci(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct pci_attach_args *pa = aux;
+	struct gem_pci_softc *gsc = (void *)self;
+	struct gem_softc *sc = &gsc->gsc_gem;
+	pci_intr_handle_t intrhandle;
+#ifdef __sparc__
+	/* XXX the following declarations should be elsewhere */
+	extern void myetheraddr __P((u_char *));
+#endif
+	const char *intrstr;
+	int type;
+
+	if (pa->pa_memt) {
+		type = PCI_MAPREG_TYPE_MEM;
+		sc->sc_bustag = pa->pa_memt;
+	} else {
+		type = PCI_MAPREG_TYPE_IO;
+		sc->sc_bustag = pa->pa_iot;
+	}
+
+	sc->sc_dmatag = pa->pa_dmat;
+
+	sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */
+
+#define PCI_GEM_BASEADDR	0x10
+	if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, type, 0,
+	    &gsc->gsc_memt, &gsc->gsc_memh, NULL, NULL, 0) != 0)
+	{
+		printf(": could not map gem registers\n");
+		return;
+	}
+
+	sc->sc_bustag = gsc->gsc_memt;
+	sc->sc_h = gsc->gsc_memh;
+
+#if 0
+/* SBUS compatible stuff? */
+	sc->sc_seb = gsc->gsc_memh;
+	sc->sc_etx = gsc->gsc_memh + 0x2000;
+	sc->sc_erx = gsc->gsc_memh + 0x4000;
+	sc->sc_mac = gsc->gsc_memh + 0x6000;
+	sc->sc_mif = gsc->gsc_memh + 0x7000;
+#endif
+#ifdef __sparc__
+	myetheraddr(sc->sc_enaddr);
+#endif
+
+	sc->sc_burst = 16;	/* XXX */
+
+	/*
+	 * call the main configure
+	 */
+	gem_config(sc);
+
+	if (pci_intr_map(pa, &intrhandle) != 0) {
+		printf("%s: couldn't map interrupt\n",
+		    sc->sc_dev.dv_xname);
+		return;	/* bus_unmap ? */
+	}	
+	intrstr = pci_intr_string(pa->pa_pc, intrhandle);
+	gsc->gsc_ih = pci_intr_establish(pa->pa_pc,
+	    intrhandle, IPL_NET, gem_intr, sc, self->dv_xname);
+	if (gsc->gsc_ih != NULL) {
+		printf("%s: using %s for interrupt\n",
+		    sc->sc_dev.dv_xname,
+		    intrstr ? intrstr : "unknown interrupt");
+	} else {
+		printf("%s: couldn't establish interrupt",
+		    sc->sc_dev.dv_xname);
+		if (intrstr != NULL)
+			printf(" at %s", intrstr);
+		printf("\n");
+		return;	/* bus_unmap ? */
+	}
+}