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 |
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 |
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 | |