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/* $OpenBSD: uperf.c,v 1.6 2011/04/07 15:30:16 miod Exp $ */
/*
* Copyright (c) 2002 Jason L. Wright (jason@thought.net)
* 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 ``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 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.
*
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
*
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <machine/conf.h>
#include <dev/sun/uperfio.h>
#include <arch/sparc64/dev/uperfvar.h>
struct cfdriver uperf_cd = {
NULL, "uperf", DV_DULL
};
int uperf_getcntsrc(struct uperf_softc *, struct uperf_io *);
int uperf_findbyval(struct uperf_softc *, int, u_int, int *);
int uperf_findbysrc(struct uperf_softc *, int, int, u_int32_t *);
int uperf_setcntsrc(struct uperf_softc *, struct uperf_io *);
int
uperfopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
if (minor(dev) >= uperf_cd.cd_ndevs)
return (ENXIO);
if (uperf_cd.cd_devs[minor(dev)] == NULL)
return (ENXIO);
return (0);
}
int
uperfclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (0);
}
int
uperfioctl(dev, cmd, data, flags, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
struct uperf_softc *usc = uperf_cd.cd_devs[minor(dev)];
struct uperf_io *io = (struct uperf_io *)data;
int error = EINVAL;
switch (cmd) {
case UPIO_GCNTSRC:
error = uperf_getcntsrc(usc, io);
break;
case UPIO_SCNTSRC:
error = uperf_setcntsrc(usc, io);
break;
case UPIO_CLRCNT:
error = usc->usc_clrcnt(usc->usc_cookie, io->cnt_flags);
break;
case UPIO_GETCNT:
error = usc->usc_getcnt(usc->usc_cookie, io->cnt_flags,
&io->cnt_val0, &io->cnt_val1);
break;
}
return (error);
}
int
uperf_getcntsrc(usc, io)
struct uperf_softc *usc;
struct uperf_io *io;
{
u_int cnt0_src, cnt1_src;
int error;
error = usc->usc_getcntsrc(usc->usc_cookie, io->cnt_flags,
&cnt0_src, &cnt1_src);
if (error)
return (error);
if (io->cnt_flags & UPERF_CNT0) {
error = uperf_findbyval(usc, UPERF_CNT0,
cnt0_src, &io->cnt_src0);
if (error)
return (error);
}
if (io->cnt_flags & UPERF_CNT1) {
error = uperf_findbyval(usc, UPERF_CNT1,
cnt1_src, &io->cnt_src1);
if (error)
return (error);
}
return (0);
}
int
uperf_findbyval(usc, cnt, uval, rval)
struct uperf_softc *usc;
int cnt;
u_int uval;
int *rval;
{
struct uperf_src *srcs = usc->usc_srcs;
if (srcs->us_src == 0)
return (EINVAL);
while (srcs->us_src != -1) {
if (srcs->us_val == uval && srcs->us_flags & cnt) {
*rval = srcs->us_src;
return (0);
}
srcs++;
}
return (EINVAL);
}
int
uperf_setcntsrc(usc, io)
struct uperf_softc *usc;
struct uperf_io *io;
{
u_int32_t cnt0_src, cnt1_src;
int error;
if (io->cnt_flags & UPERF_CNT0) {
error = uperf_findbysrc(usc, UPERF_CNT0,
io->cnt_src0, &cnt0_src);
if (error)
return (error);
}
if (io->cnt_flags & UPERF_CNT1) {
error = uperf_findbysrc(usc, UPERF_CNT1,
io->cnt_src1, &cnt1_src);
if (error)
return (error);
}
return ((usc->usc_setcntsrc)(usc->usc_cookie, io->cnt_flags,
cnt0_src, cnt1_src));
}
int
uperf_findbysrc(usc, cnt, src, rval)
struct uperf_softc *usc;
int cnt, src;
u_int32_t *rval;
{
struct uperf_src *srcs = usc->usc_srcs;
if (srcs->us_src == 0)
return (EINVAL);
while (srcs->us_src != -1) {
if (srcs->us_src == src && srcs->us_flags & cnt) {
*rval = srcs->us_val;
return (0);
}
srcs++;
}
return (EINVAL);
}
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