1 #-
2 # Copyright (c) 2014 Ian Lepore
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/types.h>
30 #include <sys/bus.h>
31 #include <dev/ofw/openfirm.h>
32
33 #
34 # This is the interface that fdt_pinctrl drivers provide to other drivers.
35 #
36
37 INTERFACE fdt_pinctrl;
38
39 CODE {
40 static int
41 fdt_pinctrl_default_is_gpio(device_t pinctrl, device_t gpio, bool *is_gpio)
42 {
43
44 return (EOPNOTSUPP);
45 }
46
47 static int
48 fdt_pinctrl_default_set_flags(device_t pinctrl, device_t gpio, uint32_t pin,
49 uint32_t flags)
50 {
51
52 return (EOPNOTSUPP);
53 }
54
55 static int
56 fdt_pinctrl_default_get_flags(device_t pinctrl, device_t gpio, uint32_t pin,
57 uint32_t *flags)
58 {
59
60 return (EOPNOTSUPP);
61 }
62 };
63
64 # Needed for timestamping device probe/attach calls
65 HEADER {
66 #include <sys/tslog.h>
67 }
68
69 #
70 # Set pins to the specified configuration. The cfgxref arg is an xref phandle
71 # to a descendent node (child, grandchild, ...) of the pinctrl device node.
72 # Returns 0 on success or a standard errno value.
73 #
74 PROLOG {
75 TSENTER2(device_get_name(pinctrl));
76 }
77 EPILOG {
78 TSEXIT2(device_get_name(pinctrl));
79 }
80 METHOD int configure {
81 device_t pinctrl;
82 phandle_t cfgxref;
83 };
84
85
86 #
87 # Test if the pin is in gpio mode
88 # Called from a gpio device
89 #
90 METHOD int is_gpio {
91 device_t pinctrl;
92 device_t gpio;
93 uint32_t pin;
94 bool *is_gpio;
95 } DEFAULT fdt_pinctrl_default_is_gpio;
96
97 #
98 # Set the flags of a pin
99 # Called from a gpio device
100 #
101 METHOD int set_flags {
102 device_t pinctrl;
103 device_t gpio;
104 uint32_t pin;
105 uint32_t flags;
106 } DEFAULT fdt_pinctrl_default_set_flags;
107
108 #
109 # Get the flags of a pin
110 # Called from a gpio device
111 #
112 METHOD int get_flags {
113 device_t pinctrl;
114 device_t gpio;
115 uint32_t pin;
116 uint32_t *flags;
117 } DEFAULT fdt_pinctrl_default_get_flags;
Cache object: 8c21b59d5e2244ac298bf12b5a125a91
|