diff options
| -rw-r--r-- | sys/dev/pci/if_en_pci.c | 203 |
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); + +} |