The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/radio.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /* $NetBSD: radio.c,v 1.22 2008/07/09 13:12:54 joerg Exp $ */
    2 /* $OpenBSD: radio.c,v 1.2 2001/12/05 10:27:06 mickey Exp $ */
    3 /* $RuOBSD: radio.c,v 1.7 2001/12/04 06:03:05 tm Exp $ */
    4 
    5 /*
    6  * Copyright (c) 2001 Maxim Tsyplakov <tm@oganer.net>
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   24  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   27  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  */
   29 
   30 /* This is the /dev/radio driver from OpenBSD */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: radio.c,v 1.22 2008/07/09 13:12:54 joerg Exp $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/proc.h>
   38 #include <sys/errno.h>
   39 #include <sys/ioctl.h>
   40 #include <sys/device.h>
   41 #include <sys/vnode.h>
   42 #include <sys/radioio.h>
   43 #include <sys/conf.h>
   44 
   45 #include <dev/radio_if.h>
   46 
   47 struct radio_softc {
   48         void            *hw_hdl;        /* hardware driver handle */
   49         device_t        sc_dev;         /* hardware device struct */
   50         const struct radio_hw_if *hw_if; /* hardware interface */
   51         char            sc_dying;       /* device detached */
   52 };
   53 
   54 static int      radioprobe(device_t, cfdata_t, void *);
   55 static void     radioattach(device_t, device_t, void *);
   56 static int      radioprint(void *, const char *);
   57 static int      radiodetach(device_t, int);
   58 static int      radioactivate(device_t, enum devact);
   59 
   60 CFATTACH_DECL_NEW(radio, sizeof(struct radio_softc),
   61     radioprobe, radioattach, radiodetach, radioactivate);
   62 
   63 static dev_type_open(radioopen);
   64 static dev_type_close(radioclose);
   65 static dev_type_ioctl(radioioctl);
   66 
   67 const struct cdevsw radio_cdevsw = {
   68         radioopen, radioclose, noread, nowrite, radioioctl,
   69         nostop, notty, nopoll, nommap, nokqfilter, D_OTHER,
   70 };
   71 
   72 extern struct cfdriver radio_cd;
   73 
   74 static int
   75 radioprobe(device_t parent, cfdata_t match, void *aux)
   76 {
   77         return (1);
   78 }
   79 
   80 static void
   81 radioattach(device_t parent, device_t self, void *aux)
   82 {
   83         struct radio_softc *sc = (void *)self;
   84         struct radio_attach_args *sa = aux;
   85         const struct radio_hw_if *hwp = sa->hwif;
   86         void  *hdlp = sa->hdl;
   87 
   88         aprint_naive("\n");
   89         aprint_normal("\n");
   90         sc->hw_if = hwp;
   91         sc->hw_hdl = hdlp;
   92         sc->sc_dev = parent;
   93 }
   94 
   95 static int
   96 radioopen(dev_t dev, int flags, int fmt, struct lwp *l)
   97 {
   98         int     unit;
   99         struct radio_softc *sc;
  100 
  101         unit = RADIOUNIT(dev);
  102         sc = device_lookup_private(&radio_cd, unit);
  103         if (sc == NULL || sc->hw_if == NULL)
  104                 return (ENXIO);
  105 
  106         if (sc->hw_if->open != NULL)
  107                 return (sc->hw_if->open(sc->hw_hdl, flags, fmt, l->l_proc));
  108         else
  109                 return (0);
  110 }
  111 
  112 static int
  113 radioclose(dev_t dev, int flags, int fmt, struct lwp *l)
  114 {
  115         struct radio_softc *sc;
  116 
  117         sc = device_lookup_private(&radio_cd, RADIOUNIT(dev));
  118 
  119         if (sc->hw_if->close != NULL)
  120                 return (sc->hw_if->close(sc->hw_hdl, flags, fmt, l->l_proc));
  121         else
  122                 return (0);
  123 }
  124 
  125 static int
  126 radioioctl(dev_t dev, u_long cmd, void *data, int flags,
  127     struct lwp *l)
  128 {
  129         struct radio_softc *sc;
  130         int unit, error;
  131 
  132         unit = RADIOUNIT(dev);
  133         sc = device_lookup_private(&radio_cd, unit);
  134         if (sc == NULL || sc->hw_if == NULL)
  135                 return (ENXIO);
  136 
  137         error = EOPNOTSUPP;
  138         switch (cmd) {
  139         case RIOCGINFO:
  140                 if (sc->hw_if->get_info)
  141                         error = (sc->hw_if->get_info)(sc->hw_hdl,
  142                                         (struct radio_info *)data);
  143                         break;
  144         case RIOCSINFO:
  145                 if (sc->hw_if->set_info)
  146                         error = (sc->hw_if->set_info)(sc->hw_hdl,
  147                                 (struct radio_info *)data);
  148                 break;
  149         case RIOCSSRCH:
  150                 if (sc->hw_if->search)
  151                         error = (sc->hw_if->search)(sc->hw_hdl,
  152                                         *(int *)data);
  153                 break;
  154         default:
  155                 error = EINVAL;
  156         }
  157 
  158         return (error);
  159 }
  160 
  161 /*
  162  * Called from hardware driver. This is where the MI radio driver gets
  163  * probed/attached to the hardware driver
  164  */
  165 device_t
  166 radio_attach_mi(const struct radio_hw_if *rhwp, void *hdlp, device_t dev)
  167 {
  168         struct radio_attach_args arg;
  169 
  170         arg.hwif = rhwp;
  171         arg.hdl = hdlp;
  172         return (config_found(dev, &arg, radioprint));
  173 }
  174 
  175 static int
  176 radioprint(void *aux, const char *pnp)
  177 {
  178         if (pnp != NULL)
  179                 aprint_normal("radio at %s", pnp);
  180         return (UNCONF);
  181 }
  182 
  183 static int
  184 radiodetach(device_t self, int flags)
  185 {
  186         /*struct radio_softc *sc = (struct radio_softc *)self;*/
  187         int maj, mn;
  188 
  189         /* locate the major number */
  190         maj = cdevsw_lookup_major(&radio_cdevsw);
  191 
  192         /* Nuke the vnodes for any open instances (calls close). */
  193         mn = device_unit(self);
  194         vdevgone(maj, mn, mn, VCHR);
  195 
  196         return (0);
  197 }
  198 
  199 static int
  200 radioactivate(device_t self, enum devact act)
  201 {
  202         struct radio_softc *sc = device_private(self);
  203 
  204         switch (act) {
  205         case DVACT_ACTIVATE:
  206                 return (EOPNOTSUPP);
  207 
  208         case DVACT_DEACTIVATE:
  209                 sc->sc_dying = 1;
  210                 break;
  211         }
  212         return (0);
  213 }

Cache object: 80a1fb84695c8117a29001deba3e7938


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.