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/*-
* Copyright (c) 2005 Paul Saab
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bio.h>
#if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */
#include <machine/../linux32/linux.h>
#include <machine/../linux32/linux32_proto.h>
#else
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#endif
#include <compat/linux/linux_ioctl.h>
#include <sys/bus.h>
#include <sys/stat.h>
#include <machine/bus.h>
#include <dev/amr/amrreg.h>
#include <dev/amr/amrvar.h>
/* There are multiple ioctl number ranges that need to be handled */
#define AMR_LINUX_IOCTL_MIN 0x6d00
#define AMR_LINUX_IOCTL_MAX 0x6d01
static linux_ioctl_function_t amr_linux_ioctl;
static struct linux_ioctl_handler amr_linux_handler = {amr_linux_ioctl,
AMR_LINUX_IOCTL_MIN,
AMR_LINUX_IOCTL_MAX};
SYSINIT (amr_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_register_handler, &amr_linux_handler);
SYSUNINIT(amr_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_unregister_handler, &amr_linux_handler);
static d_open_t amr_linux_open;
static d_close_t amr_linux_close;
static int amr_linux_isopen;
static struct cdev * amr_linux_dev_t;
static struct cdevsw megadev_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_NEEDGIANT,
.d_open = amr_linux_open,
.d_close = amr_linux_close,
.d_name = "megadev",
};
static int
amr_linux_open(struct cdev * dev, int flags, int fmt, d_thread_t *td)
{
amr_linux_isopen++;
return (0);
};
static int
amr_linux_close(struct cdev * dev, int flags, int fmt, d_thread_t *td)
{
amr_linux_isopen--;
return (0);
};
static int
amr_linux_init(void)
{
devclass_t devclass;
struct amr_softc *sc;
int i, linux_no_adapters, max_unit;
devclass = devclass_find("amr");
if (devclass == NULL)
return (0);
max_unit = devclass_get_maxunit(devclass);
if (max_unit == 0)
return (0);
for (i = 0; i < max_unit; i++) {
sc = devclass_get_softc(devclass, i);
if (sc == NULL)
break;
}
linux_no_adapters = i;
for (i = 0; i < linux_no_adapters; i++) {
sc = devclass_get_softc(devclass, i);
if (sc == NULL)
break;
sc->amr_linux_no_adapters = linux_no_adapters;
}
return (linux_no_adapters);
}
static int
amr_linux_modevent(module_t mod, int cmd, void *data)
{
switch (cmd) {
case MOD_LOAD:
if (amr_linux_init() == 0)
return (ENXIO);
if (amr_linux_dev_t)
return (EEXIST);
amr_linux_dev_t = make_dev(&megadev_cdevsw, 0, UID_ROOT,
GID_OPERATOR, S_IRUSR | S_IWUSR, "megadev%d", 0);
if (amr_linux_dev_t == NULL)
return (ENXIO);
break;
case MOD_UNLOAD:
if (amr_linux_isopen)
return (EBUSY);
if (amr_linux_dev_t)
destroy_dev(amr_linux_dev_t);
break;
default:
return (EINVAL);
}
return (0);
}
static moduledata_t amr_linux_mod = {"amr_linux", amr_linux_modevent, NULL};
DECLARE_MODULE(amr_linux, amr_linux_mod, SI_SUB_PSEUDO, SI_ORDER_MIDDLE);
MODULE_DEPEND(amr, linux, 1, 1, 1);
static int
amr_linux_ioctl(d_thread_t *p, struct linux_ioctl_args *args)
{
devclass_t devclass;
struct amr_softc *sc;
struct amr_linux_ioctl ali;
int adapter, error;
devclass = devclass_find("amr");
if (devclass == NULL)
return (ENOENT);
error = copyin((caddr_t)args->arg, &ali, sizeof(ali));
if (error)
return (error);
if (ali.ui.fcs.opcode == 0x82)
adapter = 0;
else
adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
sc = devclass_get_softc(devclass, adapter);
if (sc == NULL)
return (ENOENT);
return (amr_linux_ioctl_int(sc->amr_dev_t, args->cmd,
(caddr_t)args->arg, 0, p));
}
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