FreeBSD/Linux Kernel Cross Reference
sys/dev/eisa/if_ep_eisa.c

     /*      $NetBSD: if_ep_eisa.c,v 1.42 2010/01/18 19:00:58 pooka Exp $    */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      * NASA Ames Research Center.
     *
     * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``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 FOUNDATION OR CONTRIBUTORS
     * 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.
     */
    
    /*
     * Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org>
     * Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.org>
     * 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 Herb Peyerl.
     *      This product includes software developed by Jonathan Stone.
     * 4. The name of Herb Peyerl or Jonathan Stone 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.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: if_ep_eisa.c,v 1.42 2010/01/18 19:00:58 pooka Exp $");
    
    #include "opt_inet.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/mbuf.h>
    #include <sys/socket.h>
    #include <sys/ioctl.h>
    #include <sys/errno.h>
    #include <sys/syslog.h>
    #include <sys/select.h>
    #include <sys/device.h>
    
    #include <net/if.h>
    #include <net/if_dl.h>
    #include <net/if_ether.h>
    #include <net/if_media.h>
    
    #ifdef INET
    #include <netinet/in.h>
    #include <netinet/in_systm.h>
    #include <netinet/in_var.h>
    #include <netinet/ip.h>
    #include <netinet/if_inarp.h>
    #endif
    
    #include <sys/cpu.h>
    #include <sys/bus.h>
    #include <sys/intr.h>
    
    #include <dev/mii/miivar.h>
    
   #include <dev/ic/elink3var.h>
   #include <dev/ic/elink3reg.h>
   
   #include <dev/eisa/eisareg.h>
   #include <dev/eisa/eisavar.h>
   #include <dev/eisa/eisadevs.h>
   
   static int      ep_eisa_match(device_t , cfdata_t , void *);
   static void     ep_eisa_attach(device_t , device_t , void *);
   
   CFATTACH_DECL_NEW(ep_eisa, sizeof(struct ep_softc),
       ep_eisa_match, ep_eisa_attach, NULL, NULL);
   
   /* XXX move these somewhere else */
   /* While attaching we need a few special EISA registers of the card,
      these are mapped at slotbase+EP_EISA_CFG_BASE with len EP_EISA_CFG_SIZE */
   #define EP_EISA_CFG_BASE        0x0c80
   #define EP_EISA_CFG_CONTROL     0x0004  /* 1 byte */
   #define EP_EISA_CFG_RESOURCE    0x0008  /* 2 byte */
   #define EP_EISA_CFG_SIZE        0x000a
   
   /* The generic driver backend only needs access to the standard ports,
      mapped at the beginning of the eisa slot space */
   #define EP_IOPORT_OFFSET        0x0000
   #define EP_IOPORT_SIZE          0x0020
   
   /* Bits for the eisa control register */
   #define EISA_RESET      0x04
   #define EISA_ERROR      0x02
   #define EISA_ENABLE     0x01
   
   static const struct ep_eisa_product {
           const char      *eep_eisaid;    /* EISA ID */
           u_short         eep_chipset;    /* 3Com chipset used */
           int             eep_flags;      /* initial softc flags */
           const char      *eep_name;      /* device name */
   } ep_eisa_products[] = {
           { "TCM5090",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5090 },
           { "TCM5091",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5091 },
           { "TCM5092",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5092 },
           { "TCM5093",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5093 },
           { "TCM5094",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5094 },
           { "TCM5095",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5095 },
           { "TCM5098",                    ELINK_CHIPSET_3C509,
             0,                            EISA_PRODUCT_TCM5098 },
   
           /*
            * Note: The 3c597 Fast Etherlink MII (TCM5972) is an
            * MII connector for an external PHY.  We treat it as
            * `manual' in the core driver.
            */
           { "TCM5920",                    ELINK_CHIPSET_VORTEX,
             0,                            EISA_PRODUCT_TCM5920 },
           { "TCM5970",                    ELINK_CHIPSET_VORTEX,
             0,                            EISA_PRODUCT_TCM5970 },
           { "TCM5971",                    ELINK_CHIPSET_VORTEX,
             0,                            EISA_PRODUCT_TCM5971 },
           { "TCM5972",                    ELINK_CHIPSET_VORTEX,
             0,                            EISA_PRODUCT_TCM5972 },
   
           { NULL,                         0,
             0,                            NULL },
   };
   
   static const struct ep_eisa_product *
   ep_eisa_lookup(const struct eisa_attach_args *ea)
   {
           const struct ep_eisa_product *eep;
   
           for (eep = ep_eisa_products; eep->eep_name != NULL; eep++)
                   if (strcmp(ea->ea_idstring, eep->eep_eisaid) == 0)
                           return (eep);
   
           return (NULL);
   }
   
   static int
   ep_eisa_match(device_t parent, cfdata_t match, void *aux)
   {
           struct eisa_attach_args *ea = aux;
   
           /* must match one of our known ID strings */
           if (ep_eisa_lookup(ea) != NULL)
                   return (1);
   
           return (0);
   }
   
   static void
   ep_eisa_attach(device_t parent, device_t self, void *aux)
   {
           struct ep_softc *sc = device_private(self);
           struct eisa_attach_args *ea = aux;
           bus_space_tag_t iot = ea->ea_iot;
           bus_space_handle_t ioh, ioh_cfg;
           eisa_chipset_tag_t ec = ea->ea_ec;
           eisa_intr_handle_t ih;
           const char *intrstr;
           const struct ep_eisa_product *eep;
           u_int irq;
   
           /* Map i/o space. */
           if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_EISA_CFG_BASE,
               EP_EISA_CFG_SIZE, 0, &ioh_cfg)) {
                   printf("\n");
                   panic("ep_eisa_attach: can't map eisa cfg i/o space");
           }
           if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_IOPORT_OFFSET,
               EP_IOPORT_SIZE, 0, &ioh)) {
                   printf("\n");
                   panic("ep_eisa_attach: can't map i/o space");
           }
   
           sc->sc_dev = self;
           sc->sc_ioh = ioh;
           sc->sc_iot = iot;
   
           bus_space_write_1(iot, ioh_cfg, EP_EISA_CFG_CONTROL, EISA_ENABLE);
           delay(4000);
   
           /* Read the IRQ from the card. */
           irq = bus_space_read_2(iot, ioh_cfg, EP_EISA_CFG_RESOURCE) >> 12;
   
           eep = ep_eisa_lookup(ea);
           if (eep == NULL) {
                   printf("\n");
                   panic("ep_eisa_attach: impossible");
           }
   
           /* we don't need access to the config registers any more, but
              noone else should be able to map this space, so keep it
              reserved? */
   #if 0
           bus_space_unmap(iot, ioh_cfg, EP_EISA_CFG_SIZE);
   #endif
   
           printf(": %s\n", eep->eep_name);
   
           sc->enable = NULL;
           sc->disable = NULL;
           sc->enabled = 1;
   
           sc->bustype = ELINK_BUS_EISA;
           sc->ep_flags = eep->eep_flags;
   
           if (eisa_intr_map(ec, irq, &ih)) {
                   aprint_error_dev(sc->sc_dev, "couldn't map interrupt (%u)\n",
                       irq);
                   return;
           }
           intrstr = eisa_intr_string(ec, ih);
           sc->sc_ih = eisa_intr_establish(ec, ih, IST_EDGE, IPL_NET,
               epintr, sc);
           if (sc->sc_ih == NULL) {
                   aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
                   if (intrstr != NULL)
                           aprint_error(" at %s", intrstr);
                   aprint_error("\n");
                   return;
           }
           if (intrstr != NULL)
                   aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
   
           epconfig(sc, eep->eep_chipset, NULL);
   }

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