NetBSD/sys/dev/pci/cyber.c

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/* $NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $ */
/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frederick S. Bruckman.
*
* 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.
*/
/* Store one "Usr" register on an SIIG Cyberserial multiport PCI card. */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/termios.h> /* XXX for tcflag_t in comvar.h */
#include <machine/bus.h>
#include <dev/pci/cyberreg.h>
#include <dev/pci/cybervar.h>
void
write_siig10x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
int high_speed)
{
pcireg_t curregs, newregs;
newregs = curregs = pci_conf_read(pc, tag, SIIG10x_USR_BASE);
if (high_speed) /* Clear bit. */
switch (usrregno) {
case 0:
newregs &= ~SIIG10x_USR0_MASK;
break;
case 1:
newregs &= ~SIIG10x_USR1_MASK;
break;
case 2:
newregs &= ~SIIG10x_USR2_MASK;
break;
case 3:
newregs &= ~SIIG10x_USR3_MASK;
}
else /* if (!high_speed) */ /* Set bit. */
switch (usrregno) {
case 0:
newregs |= SIIG10x_USR0_MASK;
break;
case 1:
newregs |= SIIG10x_USR1_MASK;
break;
case 2:
newregs |= SIIG10x_USR2_MASK;
break;
case 3:
newregs |= SIIG10x_USR3_MASK;
}
if (newregs != curregs)
pci_conf_write(pc, tag, SIIG10x_USR_BASE, newregs);
}
void
write_siig20x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
int high_speed)
{
pcireg_t curreg, newreg;
int offset;
switch (usrregno) {
case 0:
offset = SIIG20x_USR0;
break;
case 1:
offset = SIIG20x_USR1;
break;
default:
return;
}
newreg = curreg = pci_conf_read(pc, tag, offset);
if (high_speed) /* Clear bit. */
newreg &= ~SIIG20x_USR_MASK;
else /* if (!high_speed) */ /* Set bit. */
newreg |= SIIG20x_USR_MASK;
if (newreg != curreg)
pci_conf_write(pc, tag, offset, newreg);
}