505c6d6ae9
first driver that does the configuration dance with CFE's. There's likely some additional configuration that's needed to get things working completely...
231 lines
6.4 KiB
C
231 lines
6.4 KiB
C
/*-
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* Copyright (c) 2000 Mitsuru IWASAKI
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <dev/ex/if_exreg.h>
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#include <dev/ex/if_exvar.h>
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#include <dev/pccard/pccardvar.h>
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#include <dev/pccard/pccard_cis.h>
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#include "pccarddevs.h"
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static const struct pccard_product ex_pccard_products[] = {
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PCMCIA_CARD(OLICOM, OC2220),
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PCMCIA_CARD(OLICOM, OC2231),
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PCMCIA_CARD(OLICOM, OC2232),
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PCMCIA_CARD(INTEL, ETHEREXPPRO),
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{ NULL }
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};
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/* Bus Front End Functions */
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static int ex_pccard_probe(device_t);
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static int ex_pccard_attach(device_t);
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static int
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ex_pccard_enet_ok(u_char *enaddr)
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{
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int i;
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u_char sum;
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if (enaddr[0] == 0xff)
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return (0);
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for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
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sum |= enaddr[i];
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return (sum != 0);
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}
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static int
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ex_pccard_silicom_cb(const struct pccard_tuple *tuple, void *arg)
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{
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u_char *enaddr = arg;
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int i;
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if (tuple->code != CISTPL_FUNCE)
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return (0);
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if (tuple->length != 15)
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return (0);
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if (pccard_tuple_read_1(tuple, 6) != 6)
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return (0);
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for (i = 0; i < 6; i++)
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enaddr[i] = pccard_tuple_read_1(tuple, 7 + i);
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return (1);
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}
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static void
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ex_pccard_get_silicom_mac(device_t dev, u_char *ether_addr)
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{
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pccard_cis_scan(dev, ex_pccard_silicom_cb, ether_addr);
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}
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static int
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ex_pccard_probe(device_t dev)
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{
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const struct pccard_product *pp;
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int error, i, j;
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uint32_t fcn = PCCARD_FUNCTION_UNSPEC;
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if ((pp = pccard_product_lookup(dev, ex_pccard_products,
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sizeof(ex_pccard_products[0]), NULL)) == NULL)
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return (EIO);
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if (pp->pp_name != NULL)
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device_set_desc(dev, pp->pp_name);
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/*
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* Olicom 22.8k and 33.6k modems need to activate the right
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* CFE. The odd formula below replicates the sequence of cfes
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* that have multiple resources:
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* 9, 11, 13, 15, 0 + 9
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* 25, 27, 29, 31, 16 + 9
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* 41, 43, 45, 47, 32 + 9
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* 57, 59, 61, 63 48 + 9
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* (entries 8, 24, 40 and 56 are single resoruce cfes)
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* Fortunately the code that enables and disables the multiple
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* fuctions of the card won't mess with the lower bit for cards
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* that aren't stanards conforming MFC cards (which these olicom
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* cards aren't).
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*
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* Note: These cards still don't get interrupts for reasons
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* unknown, even when the right cfe is selected. There's likely
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* something in the CCR that needs to be manually tweaked, but
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* the COR bits seem to all be used. Bit 0 and 3 are always set
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* and the other bits select the config to use. Maybe one of those
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* two bits needs to be cleared, or there's something else in the
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* CCR that needs tweaking. The pattern of resources suggests
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* bit 0 turns on the ethernet, however...
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*/
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if (pp->pp_vendor == PCMCIA_VENDOR_OLICOM &&
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(pp->pp_product == PCMCIA_PRODUCT_OLICOM_OC2231 ||
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pp->pp_product == PCMCIA_PRODUCT_OLICOM_OC2232)) {
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if (pccard_select_cfe(dev, 1) == 0)
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goto good;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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printf("Trying %d %d\n", i, j);
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if (pccard_select_cfe(dev,
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(i << 4) + (j << 1) + 9) == 0)
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goto good;
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}
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}
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/* Can't activate the net entries, punt */
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return (EIO);
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}
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/*
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* All other cards supported by this driver don't need specail
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* treatment, so just filter based on the type of card. The
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* special treatment ones are setup to 'fail safe' to a modem so
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* this check would effectively filter them out as well.
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*/
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error = pccard_get_function(dev, &fcn);
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if (error != 0)
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return (error);
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if (fcn != PCCARD_FUNCTION_NETWORK)
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return (EIO);
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good:;
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return (0);
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}
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static int
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ex_pccard_attach(device_t dev)
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{
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struct ex_softc * sc = device_get_softc(dev);
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int error = 0;
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u_char ether_addr[ETHER_ADDR_LEN];
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sc->dev = dev;
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sc->ioport_rid = 0;
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sc->irq_rid = 0;
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if ((error = ex_alloc_resources(dev)) != 0) {
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device_printf(dev, "ex_alloc_resources() failed!\n");
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goto bad;
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}
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/*
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* Fill in several fields of the softc structure:
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* - Hardware Ethernet address.
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* - IRQ number.
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*/
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sc->irq_no = rman_get_start(sc->irq);
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/* Try to get the ethernet address from the chip, then the CIS */
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ex_get_address(sc, ether_addr);
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if (!ex_pccard_enet_ok(ether_addr))
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pccard_get_ether(dev, ether_addr);
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if (!ex_pccard_enet_ok(ether_addr))
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ex_pccard_get_silicom_mac(dev, ether_addr);
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if (!ex_pccard_enet_ok(ether_addr)) {
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device_printf(dev, "No NIC address found.\n");
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error = ENXIO;
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goto bad;
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}
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bcopy(ether_addr, sc->enaddr, ETHER_ADDR_LEN);
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if ((error = ex_attach(dev)) != 0) {
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device_printf(dev, "ex_attach() failed!\n");
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goto bad;
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}
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return(0);
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bad:
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ex_release_resources(dev);
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return (error);
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}
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static device_method_t ex_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ex_pccard_probe),
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DEVMETHOD(device_attach, ex_pccard_attach),
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DEVMETHOD(device_detach, ex_detach),
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{ 0, 0 }
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};
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static driver_t ex_pccard_driver = {
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"ex",
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ex_pccard_methods,
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sizeof(struct ex_softc),
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};
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DRIVER_MODULE(ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
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MODULE_DEPEND(ex, pccard, 1, 1, 1);
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