Home | History | Annotate | Line # | Download | only in dev
radio.c revision 1.1 
      1 /* $NetBSD: radio.c,v 1.1 2002/01/01 21:51:38 augustss 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 (at) 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/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/proc.h>
     35 #include <sys/errno.h>
     36 #include <sys/ioctl.h>
     37 #include <sys/device.h>
     38 #include <sys/radioio.h>
     39 
     40 #include <dev/radio_if.h>
     41 #include <dev/radiovar.h>
     42 
     43 int	radioprobe(struct device *, struct cfdata *, void *);
     44 void	radioattach(struct device *, struct device *, void *);
     45 int	radioopen(dev_t, int, int, struct proc *);
     46 int	radioclose(dev_t, int, int, struct proc *);
     47 int	radioioctl(dev_t, u_long, caddr_t, int, struct proc *);
     48 int	radioprint(void *, const char *);
     49 
     50 struct cfattach radio_ca = {
     51 	sizeof(struct radio_softc), radioprobe, radioattach,
     52 	NULL, NULL
     53 };
     54 
     55 extern struct cfdriver radio_cd;
     56 
     57 int
     58 radioprobe(struct device *parent, struct cfdata *match, void *aux)
     59 {
     60 	return (1);
     61 }
     62 
     63 void
     64 radioattach(struct device *parent, struct device *self, void *aux)
     65 {
     66 	struct radio_softc *sc = (void *)self;
     67 	struct radio_attach_args *sa = aux;
     68 	struct radio_hw_if *hwp = sa->hwif;
     69 	void  *hdlp = sa->hdl;
     70 
     71 	printf("\n");
     72 	sc->hw_if = hwp;
     73 	sc->hw_hdl = hdlp;
     74 	sc->sc_dev = parent;
     75 }
     76 
     77 int
     78 radioopen(dev_t dev, int flags, int fmt, struct proc *p)
     79 {
     80 	int	unit;
     81 	struct radio_softc *sc;
     82 
     83 	unit = RADIOUNIT(dev);
     84 	if (unit >= radio_cd.cd_ndevs ||
     85 	    (sc = radio_cd.cd_devs[unit]) == NULL ||
     86 	     sc->hw_if == NULL)
     87 		return (ENXIO);
     88 
     89 	if (sc->hw_if->open != NULL)
     90 		return (sc->hw_if->open(sc->hw_hdl, flags, fmt, p));
     91 	else
     92 		return (0);
     93 }
     94 
     95 int
     96 radioclose(dev_t dev, int flags, int fmt, struct proc *p)
     97 {
     98 	struct radio_softc *sc;
     99 
    100 	sc = radio_cd.cd_devs[RADIOUNIT(dev)];
    101 
    102 	if (sc->hw_if->close != NULL)
    103 		return (sc->hw_if->close(sc->hw_hdl, flags, fmt, p));
    104 	else
    105 		return (0);
    106 }
    107 
    108 int
    109 radioioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
    110 {
    111 	struct radio_softc *sc;
    112 	int unit, error;
    113 
    114 	unit = RADIOUNIT(dev);
    115 	if (unit >= radio_cd.cd_ndevs ||
    116 	    (sc = radio_cd.cd_devs[unit]) == NULL || sc->hw_if == NULL)
    117 		return (ENXIO);
    118 
    119 	error = EOPNOTSUPP;
    120 	switch (cmd) {
    121 	case RIOCGINFO:
    122 		if (sc->hw_if->get_info)
    123 			error = (sc->hw_if->get_info)(sc->hw_hdl,
    124 					(struct radio_info *)data);
    125 			break;
    126 	case RIOCSINFO:
    127 		if (sc->hw_if->set_info)
    128 			error = (sc->hw_if->set_info)(sc->hw_hdl,
    129 				(struct radio_info *)data);
    130 		break;
    131 	case RIOCSSRCH:
    132 		if (sc->hw_if->search)
    133 			error = (sc->hw_if->search)(sc->hw_hdl,
    134 					*(int *)data);
    135 		break;
    136 	default:
    137 		error = EINVAL;
    138 	}
    139 
    140 	return (error);
    141 }
    142 
    143 /*
    144  * Called from hardware driver. This is where the MI radio driver gets
    145  * probed/attached to the hardware driver
    146  */
    147 struct device  *
    148 radio_attach_mi(struct radio_hw_if *rhwp, void *hdlp, struct device *dev)
    149 {
    150 	struct radio_attach_args arg;
    151 
    152 	arg.hwif = rhwp;
    153 	arg.hdl = hdlp;
    154 	return (config_found(dev, &arg, radioprint));
    155 }
    156 
    157 int
    158 radioprint(void *aux, const char *pnp)
    159 {
    160 	return UNCONF;
    161 }
    162