95b0df9df2
license. Only clause 3 has been revoked. Restore the fourth clause as clause 3. Pointed out by: das@ Remove my name as a copyright holder since I don't use a BSD license compatible or comparable to the UCB license. I choose not to add a complete second license for my work for aesthetic reasons, nor to replace the UCB license on grounds of rewriting more than 90% of the source files. The rewrite can also be seen as an enhancement and since the files were practically empty, it's rather trivial to have changed 90% of the files.
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysproto.h>
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#include <sys/sysent.h>
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#include <machine/cpu.h>
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#include <machine/sysarch.h>
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#ifndef _SYS_SYSPROTO_H_
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struct sysarch_args {
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int op;
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char *parms;
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};
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#endif
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int
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sysarch(struct thread *td, struct sysarch_args *uap)
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{
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struct ia64_iodesc iod;
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int error;
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error = 0;
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switch(uap->op) {
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case IA64_IORD:
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copyin(uap->parms, &iod, sizeof(iod));
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switch (iod.width) {
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case 1:
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iod.val = inb(iod.port);
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break;
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case 2:
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if (iod.port & 1) {
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iod.val = inb(iod.port);
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iod.val |= inb(iod.port + 1) << 8;
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} else
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iod.val = inw(iod.port);
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break;
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case 4:
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if (iod.port & 3) {
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if (iod.port & 1) {
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iod.val = inb(iod.port);
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iod.val |= inw(iod.port + 1) << 8;
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iod.val |= inb(iod.port + 3) << 24;
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} else {
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iod.val = inw(iod.port);
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iod.val |= inw(iod.port + 2) << 16;
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}
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} else
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iod.val = inl(iod.port);
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break;
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default:
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error = EINVAL;
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}
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copyout(&iod, uap->parms, sizeof(iod));
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break;
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case IA64_IOWR:
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copyin(uap->parms, &iod, sizeof(iod));
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switch (iod.width) {
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case 1:
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outb(iod.port, iod.val);
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break;
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case 2:
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if (iod.port & 1) {
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outb(iod.port, iod.val);
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outb(iod.port + 1, iod.val >> 8);
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} else
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outw(iod.port, iod.val);
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break;
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case 4:
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if (iod.port & 3) {
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if (iod.port & 1) {
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outb(iod.port, iod.val);
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outw(iod.port + 1, iod.val >> 8);
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outb(iod.port + 3, iod.val >> 24);
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} else {
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outw(iod.port, iod.val);
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outw(iod.port + 2, iod.val >> 16);
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}
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} else
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outl(iod.port, iod.val);
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break;
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default:
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error = EINVAL;
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}
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break;
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default:
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error = EINVAL;
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break;
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}
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return (error);
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}
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