270 lines
6.8 KiB
C
270 lines
6.8 KiB
C
/* $NetBSD: if_en_pci.c,v 1.9 1997/04/13 20:14:28 cgd Exp $ */
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/*
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*
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* Copyright (c) 1996 Charles D. Cranor and Washington University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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*
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* i f _ e n _ p c i . c
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*
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* author: Chuck Cranor <chuck@ccrc.wustl.edu>
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* started: spring, 1996.
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*
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* PCI glue for the eni155p card.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <net/if.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/midwayreg.h>
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#include <dev/ic/midwayvar.h>
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/*
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* local structures
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*/
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struct en_pci_softc {
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/* bus independent stuff */
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struct en_softc esc; /* includes "device" structure */
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/* PCI bus glue */
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void *sc_ih; /* interrupt handle */
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pci_chipset_tag_t en_pc; /* for PCI calls */
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};
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/*
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* local defines (PCI specific stuff)
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*/
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/*
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* address of config base memory address register in PCI config space
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* (this is card specific)
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*/
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#define PCI_CBMA 0x10
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/*
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* tonga (pci bridge). ENI cards only!
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*/
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#define EN_TONGA 0x60 /* PCI config addr of tonga reg */
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#define TONGA_SWAP_DMA 0x80 /* endian swap control */
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#define TONGA_SWAP_BYTE 0x40
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#define TONGA_SWAP_WORD 0x20
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/*
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* adaptec pci bridge. ADP cards only!
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*/
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#define ADP_PCIREG 0x050040 /* PCI control register */
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#define ADP_PCIREG_RESET 0x1 /* reset card */
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#define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */
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#define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */
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#define ADP_PCIREG_SWAP_DMA 0x8 /* swap bytes on DMA */
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/*
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* prototypes
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*/
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#ifdef __BROKEN_INDIRECT_CONFIG
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static int en_pci_match __P((struct device *, void *, void *));
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#else
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static int en_pci_match __P((struct device *, struct cfdata *, void *));
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#endif
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static void en_pci_attach __P((struct device *, struct device *, void *));
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/*
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* PCI autoconfig attachments
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*/
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struct cfattach en_pci_ca = {
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sizeof(struct en_pci_softc), en_pci_match, en_pci_attach,
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};
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#if !defined(MIDWAY_ENIONLY)
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static void adp_busreset __P((void *));
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/*
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* bus specific reset function [ADP only!]
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*/
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static void adp_busreset(v)
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void *v;
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{
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struct en_softc *sc = (struct en_softc *) v;
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u_int32_t dummy;
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bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET);
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DELAY(1000); /* let it reset */
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dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
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bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG,
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(ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA|ADP_PCIREG_IENABLE));
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dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
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if ((dummy & (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) !=
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(ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA))
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printf("adp_busreset: Adaptec ATM did NOT reset!\n");
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}
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#endif
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/***********************************************************************/
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/*
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* autoconfig stuff
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*/
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static int en_pci_match(parent, match, aux)
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struct device *parent;
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#ifdef __BROKEN_INDIRECT_CONFIG
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void *match;
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#else
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struct cfdata *match;
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#endif
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void *aux;
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{
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struct pci_attach_args *pa = (struct pci_attach_args *) aux;
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#if !defined(MIDWAY_ADPONLY)
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_EFFICIENTNETS &&
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(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PF ||
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PA))
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return 1;
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#endif
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#if !defined(MIDWAY_ENIONLY)
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP &&
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(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5900 ||
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5905))
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return 1;
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#endif
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return 0;
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}
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static void en_pci_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct en_softc *sc = (void *)self;
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struct en_pci_softc *scp = (void *)self;
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struct pci_attach_args *pa = aux;
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pci_intr_handle_t ih;
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const char *intrstr;
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int retval;
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printf("\n");
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sc->is_adaptec = (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP) ? 1 : 0;
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scp->en_pc = pa->pa_pc;
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/*
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* interrupt map
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*/
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if (pci_intr_map(scp->en_pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(scp->en_pc, ih);
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scp->sc_ih = pci_intr_establish(scp->en_pc, ih, IPL_NET, en_intr, sc);
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if (scp->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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sc->ipl = 1; /* XXX */
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/*
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* memory map
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*/
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retval = pci_mapreg_map(pa, PCI_CBMA,
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PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
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&sc->en_memt, &sc->en_base, NULL, &sc->en_obmemsz);
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if (retval) {
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printf("%s: couldn't map memory\n", sc->sc_dev.dv_xname);
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return;
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}
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/*
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* set up pci bridge
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*/
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#if !defined(MIDWAY_ENIONLY)
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if (sc->is_adaptec) {
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sc->en_busreset = adp_busreset;
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adp_busreset(sc);
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}
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#endif
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#if !defined(MIDWAY_ADPONLY)
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if (!sc->is_adaptec) {
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sc->en_busreset = NULL;
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pci_conf_write(scp->en_pc, pa->pa_tag, EN_TONGA,
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(TONGA_SWAP_DMA|TONGA_SWAP_WORD));
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}
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#endif
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/*
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* done PCI specific stuff
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*/
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en_attach(sc);
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}
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