115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/* $NetBSD: cyber.c,v 1.5 2008/04/28 20:23:54 martin Exp $ */
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/*-
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frederick S. Bruckman.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Store one "Usr" register on an SIIG Cyberserial multiport PCI card. */
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cyber.c,v 1.5 2008/04/28 20:23:54 martin Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/termios.h> /* XXX for tcflag_t in comvar.h */
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#include <sys/bus.h>
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#include <dev/pci/cyberreg.h>
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#include <dev/pci/cybervar.h>
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void
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write_siig10x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
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int high_speed)
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{
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pcireg_t curregs, newregs;
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newregs = curregs = pci_conf_read(pc, tag, SIIG10x_USR_BASE);
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if (high_speed) /* Clear bit. */
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switch (usrregno) {
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case 0:
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newregs &= ~SIIG10x_USR0_MASK;
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break;
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case 1:
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newregs &= ~SIIG10x_USR1_MASK;
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break;
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case 2:
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newregs &= ~SIIG10x_USR2_MASK;
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break;
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case 3:
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newregs &= ~SIIG10x_USR3_MASK;
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}
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else /* if (!high_speed) */ /* Set bit. */
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switch (usrregno) {
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case 0:
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newregs |= SIIG10x_USR0_MASK;
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break;
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case 1:
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newregs |= SIIG10x_USR1_MASK;
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break;
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case 2:
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newregs |= SIIG10x_USR2_MASK;
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break;
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case 3:
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newregs |= SIIG10x_USR3_MASK;
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}
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if (newregs != curregs)
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pci_conf_write(pc, tag, SIIG10x_USR_BASE, newregs);
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}
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void
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write_siig20x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
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int high_speed)
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{
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pcireg_t curreg, newreg;
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int offset;
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switch (usrregno) {
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case 0:
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offset = SIIG20x_USR0;
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break;
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case 1:
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offset = SIIG20x_USR1;
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break;
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default:
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return;
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}
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newreg = curreg = pci_conf_read(pc, tag, offset);
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if (high_speed) /* Clear bit. */
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newreg &= ~SIIG20x_USR_MASK;
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else /* if (!high_speed) */ /* Set bit. */
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newreg |= SIIG20x_USR_MASK;
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if (newreg != curreg)
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pci_conf_write(pc, tag, offset, newreg);
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}
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