root/dev/pci/if_ral_pci.c

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DEFINITIONS

This source file includes following definitions.
  1. ral_pci_match
  2. ral_pci_attach
  3. ral_pci_detach

    1 /*      $OpenBSD: if_ral_pci.c,v 1.8 2006/11/18 20:44:40 grange Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2005, 2006
    5  *      Damien Bergamini <damien.bergamini@free.fr>
    6  *
    7  * Permission to use, copy, modify, and distribute this software for any
    8  * purpose with or without fee is hereby granted, provided that the above
    9  * copyright notice and this permission notice appear in all copies.
   10  *
   11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   18  */
   19 
   20 /*
   21  * PCI front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
   22  */
   23 
   24 #include "bpfilter.h"
   25 
   26 #include <sys/param.h>
   27 #include <sys/sockio.h>
   28 #include <sys/mbuf.h>
   29 #include <sys/kernel.h>
   30 #include <sys/socket.h>
   31 #include <sys/systm.h>
   32 #include <sys/malloc.h>
   33 #include <sys/timeout.h>
   34 #include <sys/device.h>
   35 
   36 #include <machine/bus.h>
   37 #include <machine/intr.h>
   38 
   39 #include <net/if.h>
   40 #include <net/if_dl.h>
   41 #include <net/if_media.h>
   42 
   43 #include <netinet/in.h>
   44 #include <netinet/if_ether.h>
   45 
   46 #include <net80211/ieee80211_var.h>
   47 #include <net80211/ieee80211_amrr.h>
   48 #include <net80211/ieee80211_radiotap.h>
   49 
   50 #include <dev/ic/rt2560var.h>
   51 #include <dev/ic/rt2661var.h>
   52 
   53 #include <dev/pci/pcireg.h>
   54 #include <dev/pci/pcivar.h>
   55 #include <dev/pci/pcidevs.h>
   56 
   57 static struct ral_opns {
   58         int     (*attach)(void *, int);
   59         int     (*detach)(void *);
   60         int     (*intr)(void *);
   61 
   62 }  ral_rt2560_opns = {
   63         rt2560_attach,
   64         rt2560_detach,
   65         rt2560_intr
   66 
   67 }, ral_rt2661_opns = {
   68         rt2661_attach,
   69         rt2661_detach,
   70         rt2661_intr
   71 };
   72 
   73 struct ral_pci_softc {
   74         union {
   75                 struct rt2560_softc     sc_rt2560;
   76                 struct rt2661_softc     sc_rt2661;
   77         } u;
   78 #define sc_sc   u.sc_rt2560
   79 
   80         /* PCI specific goo */
   81         struct ral_opns         *sc_opns;
   82         pci_chipset_tag_t       sc_pc;
   83         void                    *sc_ih;
   84         bus_size_t              sc_mapsize;
   85 };
   86 
   87 /* Base Address Register */
   88 #define RAL_PCI_BAR0    0x10
   89 
   90 int     ral_pci_match(struct device *, void *, void *);
   91 void    ral_pci_attach(struct device *, struct device *, void *);
   92 int     ral_pci_detach(struct device *, int);
   93 
   94 struct cfattach ral_pci_ca = {
   95         sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach,
   96         ral_pci_detach
   97 };
   98 
   99 const struct pci_matchid ral_pci_devices[] = {
  100         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560  },
  101         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561  },
  102         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S },
  103         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661  }
  104 };
  105 
  106 int
  107 ral_pci_match(struct device *parent, void *match, void *aux)
  108 {
  109         return (pci_matchbyid((struct pci_attach_args *)aux, ral_pci_devices,
  110             sizeof (ral_pci_devices) / sizeof (ral_pci_devices[0])));
  111 }
  112 
  113 void
  114 ral_pci_attach(struct device *parent, struct device *self, void *aux)
  115 {
  116         struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
  117         struct rt2560_softc *sc = &psc->sc_sc;
  118         struct pci_attach_args *pa = aux;
  119         const char *intrstr;
  120         pci_intr_handle_t ih;
  121         int error;
  122 
  123         psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ?
  124             &ral_rt2560_opns : &ral_rt2661_opns;
  125 
  126         sc->sc_dmat = pa->pa_dmat;
  127         psc->sc_pc = pa->pa_pc;
  128 
  129         /* map control/status registers */
  130         error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
  131             PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, NULL,
  132             &psc->sc_mapsize, 0);
  133         if (error != 0) {
  134                 printf(": could not map memory space\n");
  135                 return;
  136         }
  137 
  138         if (pci_intr_map(pa, &ih) != 0) {
  139                 printf(": could not map interrupt\n");
  140                 return;
  141         }
  142 
  143         intrstr = pci_intr_string(psc->sc_pc, ih);
  144         psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET,
  145             psc->sc_opns->intr, sc, sc->sc_dev.dv_xname);
  146         if (psc->sc_ih == NULL) {
  147                 printf(": could not establish interrupt");
  148                 if (intrstr != NULL)
  149                         printf(" at %s", intrstr);
  150                 printf("\n");
  151                 return;
  152         }
  153         printf(": %s", intrstr);
  154 
  155         (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id));
  156 }
  157 
  158 int
  159 ral_pci_detach(struct device *self, int flags)
  160 {
  161         struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
  162         struct rt2560_softc *sc = &psc->sc_sc;
  163 
  164         (*psc->sc_opns->detach)(sc);
  165         pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
  166 
  167         return 0;
  168 }

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