1 /* $NetBSD: cyber.c,v 1.5 2008/04/28 20:23:54 martin 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 1.5 2008/04/28 20:23:54 martin 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
46 void
write_siig10x_usrreg(pci_chipset_tag_t pc,pcitag_t tag,int usrregno,int high_speed)47 write_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
87 void
write_siig20x_usrreg(pci_chipset_tag_t pc,pcitag_t tag,int usrregno,int high_speed)88 write_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