/* $OpenBSD: if_en_pci.c,v 1.11 2005/09/11 18:17:08 mickey Exp $ */ /* * * Copyright (c) 1996 Charles D. Cranor and Washington University. * 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 and * Washington University. * 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/systm.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). ENI cards only! */ #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 /* * adaptec pci bridge. ADP cards only! */ #define ADP_PCIREG 0x050040 /* PCI control register */ #define ADP_PCIREG_RESET 0x1 /* reset card */ #define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */ #define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */ #define ADP_PCIREG_SWAP_DMA 0x8 /* swap bytes on DMA */ /* * prototypes */ static int en_pci_match(struct device *, void *, void *); static void en_pci_attach(struct device *, struct device *, void *); /* * PCI autoconfig attachments */ struct cfattach en_pci_ca = { sizeof(struct en_pci_softc), en_pci_match, en_pci_attach, }; #if !defined(MIDWAY_ENIONLY) static void adp_busreset(void *); /* * bus specific reset function [ADP only!] */ static void adp_busreset(v) void *v; { struct en_softc *sc = (struct en_softc *) v; u_int32_t dummy; bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET); DELAY(1000); /* let it reset */ dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA|ADP_PCIREG_IENABLE)); dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); if ((dummy & (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) != (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) printf("adp_busreset: Adaptec ATM did NOT reset!\n"); } #endif /***********************************************************************/ /* * 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 !defined(MIDWAY_ADPONLY) if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_EFFICIENTNETS && (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PF || PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PA)) return 1; #endif #if !defined(MIDWAY_ENIONLY) if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP && (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5900 || PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC5905)) return 1; #endif 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; pci_intr_handle_t ih; const char *intrstr; int retval; sc->is_adaptec = (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP) ? 1 : 0; scp->en_pc = pa->pa_pc; /* * interrupt map */ if (pci_intr_map(pa, &ih)) { printf(": couldn't map interrupt\n"); return; } intrstr = pci_intr_string(scp->en_pc, ih); scp->sc_ih = pci_intr_establish(scp->en_pc, ih, IPL_NET, en_intr, sc, sc->sc_dev.dv_xname); if (scp->sc_ih == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } sc->ipl = 1; /* XXX */ /* * memory map */ retval = pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0, &sc->en_memt, &sc->en_base, NULL, &sc->en_obmemsz, 0); if (retval) { printf(": couldn't map memory\n"); return; } printf(": %s\n", intrstr); /* * set up pci bridge */ #if !defined(MIDWAY_ENIONLY) if (sc->is_adaptec) { sc->en_busreset = adp_busreset; adp_busreset(sc); } #endif #if !defined(MIDWAY_ADPONLY) if (!sc->is_adaptec) { sc->en_busreset = NULL; pci_conf_write(scp->en_pc, pa->pa_tag, EN_TONGA, (TONGA_SWAP_DMA|TONGA_SWAP_WORD)); } #endif /* * done PCI specific stuff */ en_attach(sc); }