1 #-
2 # Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org>
3 # All rights reserved.
4 #
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
7 # are met:
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
13 #
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 # SUCH DAMAGE.
25 #
26 # $FreeBSD$
27 #
28
29 #include <sys/bus.h>
30 #include <sys/gpio.h>
31
32 INTERFACE gpiobus;
33
34 #
35 # Dedicate the gpio bus control for a child
36 #
37 METHOD int acquire_bus {
38 device_t busdev;
39 device_t dev;
40 int how;
41 };
42
43 #
44 # Release the bus
45 #
46 METHOD void release_bus {
47 device_t busdev;
48 device_t dev;
49 };
50
51 #
52 # Set value of pin specifed by pin_num
53 #
54 METHOD int pin_set {
55 device_t dev;
56 device_t child;
57 uint32_t pin_num;
58 uint32_t pin_value;
59 };
60
61 #
62 # Get value of pin specifed by pin_num
63 #
64 METHOD int pin_get {
65 device_t dev;
66 device_t child;
67 uint32_t pin_num;
68 uint32_t *pin_value;
69 };
70
71 #
72 # Toggle value of pin specifed by pin_num
73 #
74 METHOD int pin_toggle {
75 device_t dev;
76 device_t child;
77 uint32_t pin_num;
78 };
79
80 #
81 # Get pin capabilities
82 #
83 METHOD int pin_getcaps {
84 device_t dev;
85 device_t child;
86 uint32_t pin_num;
87 uint32_t *caps;
88 };
89
90 #
91 # Get pin flags
92 #
93 METHOD int pin_getflags {
94 device_t dev;
95 device_t child;
96 uint32_t pin_num;
97 uint32_t *flags;
98 };
99
100 #
101 # Set current configuration and capabilities
102 #
103 METHOD int pin_setflags {
104 device_t dev;
105 device_t child;
106 uint32_t pin_num;
107 uint32_t flags;
108 };
109
110 #
111 # Get the pin name
112 #
113 METHOD int pin_getname {
114 device_t dev;
115 uint32_t pin_num;
116 char *name;
117 };
118
119 #
120 # Set the pin name
121 #
122 METHOD int pin_setname {
123 device_t dev;
124 uint32_t pin_num;
125 const char *name;
126 };
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