1/*	$NetBSD: cyber.c,v 1.4 2007/10/19 12:00:42 ad Exp $	*/
2
3/*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Frederick S. Bruckman.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/* Store one "Usr" register on an SIIG Cyberserial multiport PCI card. */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: cyber.c,v 1.4 2007/10/19 12:00:42 ad Exp $");
36
37#include <sys/param.h>
38#include <sys/device.h>
39#include <sys/termios.h> /* XXX for tcflag_t in comvar.h */
40
41#include <sys/bus.h>
42
43#include <dev/pci/cyberreg.h>
44#include <dev/pci/cybervar.h>
45
46void
47write_siig10x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
48    int high_speed)
49{
50	pcireg_t curregs, newregs;
51
52	newregs = curregs = pci_conf_read(pc, tag, SIIG10x_USR_BASE);
53
54	if (high_speed)					/* Clear bit. */
55		switch (usrregno) {
56		case 0:
57			newregs &= ~SIIG10x_USR0_MASK;
58			break;
59		case 1:
60			newregs &= ~SIIG10x_USR1_MASK;
61			break;
62		case 2:
63			newregs &= ~SIIG10x_USR2_MASK;
64			break;
65		case 3:
66			newregs &= ~SIIG10x_USR3_MASK;
67		}
68	else /* if (!high_speed) */			/* Set bit. */
69		switch (usrregno) {
70		case 0:
71			newregs |= SIIG10x_USR0_MASK;
72			break;
73		case 1:
74			newregs |= SIIG10x_USR1_MASK;
75			break;
76		case 2:
77			newregs |= SIIG10x_USR2_MASK;
78			break;
79		case 3:
80			newregs |= SIIG10x_USR3_MASK;
81		}
82
83	if (newregs != curregs)
84		pci_conf_write(pc, tag, SIIG10x_USR_BASE, newregs);
85}
86
87void
88write_siig20x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
89    int high_speed)
90{
91	pcireg_t curreg, newreg;
92	int offset;
93
94	switch (usrregno) {
95		case 0:
96			offset = SIIG20x_USR0;
97			break;
98		case 1:
99			offset = SIIG20x_USR1;
100			break;
101		default:
102			return;
103	}
104
105	newreg = curreg = pci_conf_read(pc, tag, offset);
106
107	if (high_speed)					/* Clear bit. */
108		newreg &= ~SIIG20x_USR_MASK;
109	else /* if (!high_speed) */			/* Set bit. */
110		newreg |= SIIG20x_USR_MASK;
111
112	if (newreg != curreg)
113		pci_conf_write(pc, tag, offset, newreg);
114}
115