268 lines
6.5 KiB
C
268 lines
6.5 KiB
C
/* $NetBSD: cir.c,v 1.2 2001/12/12 15:33:53 augustss Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (lennart@augustsson.net).
|
|
*
|
|
* 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 the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/poll.h>
|
|
#include <sys/select.h>
|
|
#include <sys/vnode.h>
|
|
|
|
#include <dev/ir/ir.h>
|
|
#include <dev/ir/cirio.h>
|
|
#include <dev/ir/cirvar.h>
|
|
|
|
cdev_decl(cir);
|
|
|
|
int cir_match(struct device *parent, struct cfdata *match, void *aux);
|
|
void cir_attach(struct device *parent, struct device *self, void *aux);
|
|
int cir_activate(struct device *self, enum devact act);
|
|
int cir_detach(struct device *self, int flags);
|
|
|
|
struct cfattach cir_ca = {
|
|
sizeof(struct cir_softc), cir_match, cir_attach,
|
|
cir_detach, cir_activate
|
|
};
|
|
|
|
extern struct cfdriver cir_cd;
|
|
|
|
#define CIRUNIT(dev) (minor(dev))
|
|
|
|
int
|
|
cir_match(struct device *parent, struct cfdata *match, void *aux)
|
|
{
|
|
struct ir_attach_args *ia = aux;
|
|
|
|
return (ia->ia_type == IR_TYPE_CIR);
|
|
}
|
|
|
|
void
|
|
cir_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct cir_softc *sc = (struct cir_softc *)self;
|
|
struct ir_attach_args *ia = aux;
|
|
|
|
sc->sc_methods = ia->ia_methods;
|
|
sc->sc_handle = ia->ia_handle;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (sc->sc_methods->im_read == NULL ||
|
|
sc->sc_methods->im_write == NULL ||
|
|
sc->sc_methods->im_setparams == NULL)
|
|
panic("%s: missing methods\n", sc->sc_dev.dv_xname);
|
|
#endif
|
|
printf("\n");
|
|
}
|
|
|
|
int
|
|
cir_activate(struct device *self, enum devact act)
|
|
{
|
|
/*struct cir_softc *sc = (struct cir_softc *)self;*/
|
|
|
|
switch (act) {
|
|
case DVACT_ACTIVATE:
|
|
return (EOPNOTSUPP);
|
|
break;
|
|
|
|
case DVACT_DEACTIVATE:
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
cir_detach(struct device *self, int flags)
|
|
{
|
|
/*struct cir_softc *sc = (struct cir_softc *)self;*/
|
|
int maj, mn;
|
|
|
|
/* locate the major number */
|
|
for (maj = 0; maj < nchrdev; maj++)
|
|
if (cdevsw[maj].d_open == ciropen)
|
|
break;
|
|
|
|
/* Nuke the vnodes for any open instances (calls close). */
|
|
mn = self->dv_unit;
|
|
vdevgone(maj, mn, mn, VCHR);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ciropen(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
struct cir_softc *sc;
|
|
int error;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (EIO);
|
|
if (sc->sc_open)
|
|
return (EBUSY);
|
|
if (sc->sc_methods->im_open != NULL) {
|
|
error = sc->sc_methods->im_open(sc->sc_handle, flag, mode, p);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
sc->sc_open = 1;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
circlose(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
struct cir_softc *sc;
|
|
int error;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if (sc->sc_methods->im_close != NULL)
|
|
error = sc->sc_methods->im_close(sc->sc_handle, flag, mode, p);
|
|
else
|
|
error = 0;
|
|
sc->sc_open = 0;
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
cirread(dev_t dev, struct uio *uio, int flag)
|
|
{
|
|
struct cir_softc *sc;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (EIO);
|
|
return (sc->sc_methods->im_read(sc->sc_handle, uio, flag));
|
|
}
|
|
|
|
int
|
|
cirwrite(dev_t dev, struct uio *uio, int flag)
|
|
{
|
|
struct cir_softc *sc;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (EIO);
|
|
return (sc->sc_methods->im_write(sc->sc_handle, uio, flag));
|
|
}
|
|
|
|
int
|
|
cirioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
|
|
{
|
|
struct cir_softc *sc;
|
|
int error;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (EIO);
|
|
|
|
switch (cmd) {
|
|
case FIONBIO:
|
|
/* All handled in the upper FS layer. */
|
|
error = 0;
|
|
break;
|
|
case CIR_GET_PARAMS:
|
|
*(struct cir_params *)addr = sc->sc_params;
|
|
break;
|
|
case CIR_SET_PARAMS:
|
|
error = sc->sc_methods->im_setparams(sc->sc_handle,
|
|
(struct cir_params *)addr);
|
|
if (!error)
|
|
sc->sc_params = *(struct cir_params *)addr;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
cirpoll(dev_t dev, int events, struct proc *p)
|
|
{
|
|
struct cir_softc *sc;
|
|
int revents;
|
|
int s;
|
|
|
|
sc = device_lookup(&cir_cd, CIRUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
|
|
return (EIO);
|
|
|
|
revents = 0;
|
|
s = splir();
|
|
#if 0
|
|
if (events & (POLLIN | POLLRDNORM))
|
|
if (sc->sc_rdframes > 0)
|
|
revents |= events & (POLLIN | POLLRDNORM);
|
|
#endif
|
|
|
|
#if 0
|
|
/* How about write? */
|
|
if (events & (POLLOUT | POLLWRNORM))
|
|
if (???)
|
|
revents |= events & (POLLOUT | POLLWRNORM);
|
|
#endif
|
|
|
|
if (revents == 0) {
|
|
if (events & (POLLIN | POLLRDNORM))
|
|
selrecord(p, &sc->sc_rdsel);
|
|
|
|
#if 0
|
|
if (events & (POLLOUT | POLLWRNORM))
|
|
selrecord(p, &sc->sc_wrsel);
|
|
#endif
|
|
}
|
|
|
|
splx(s);
|
|
return (revents);
|
|
}
|