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Anton Vorontsov93f9dcf2009-06-10 00:25:27 +04001/*
2 * An inteface for configuring a hardware via u-boot environment.
3 *
4 * Copyright (c) 2009 MontaVista Software, Inc.
Kumar Galadd50af22011-01-09 11:37:00 -06005 * Copyright 2011 Freescale Semiconductor, Inc.
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +04006 *
7 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
8 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02009 * SPDX-License-Identifier: GPL-2.0+
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040010 */
11
12#ifndef _HWCONFIG_H
13#define _HWCONFIG_H
14
15#include <linux/types.h>
16#include <asm/errno.h>
17
18#ifdef CONFIG_HWCONFIG
19
Kumar Galadd50af22011-01-09 11:37:00 -060020extern int hwconfig_f(const char *opt, char *buf);
21extern const char *hwconfig_arg_f(const char *opt, size_t *arglen, char *buf);
22extern int hwconfig_arg_cmp_f(const char *opt, const char *arg, char *buf);
23extern int hwconfig_sub_f(const char *opt, const char *subopt, char *buf);
24extern const char *hwconfig_subarg_f(const char *opt, const char *subopt,
25 size_t *subarglen, char *buf);
26extern int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
27 const char *subarg, char *buf);
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040028#else
29
Kumar Galadd50af22011-01-09 11:37:00 -060030static inline int hwconfig_f(const char *opt, char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040031{
32 return -ENOSYS;
33}
34
Kumar Galadd50af22011-01-09 11:37:00 -060035static inline const char *hwconfig_arg_f(const char *opt, size_t *arglen,
36 char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040037{
38 *arglen = 0;
39 return "";
40}
41
Kumar Galadd50af22011-01-09 11:37:00 -060042static inline int hwconfig_arg_cmp_f(const char *opt, const char *arg,
43 char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040044{
45 return -ENOSYS;
46}
47
Kumar Galadd50af22011-01-09 11:37:00 -060048static inline int hwconfig_sub_f(const char *opt, const char *subopt, char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040049{
50 return -ENOSYS;
51}
52
Kumar Galadd50af22011-01-09 11:37:00 -060053static inline const char *hwconfig_subarg_f(const char *opt, const char *subopt,
54 size_t *subarglen, char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040055{
56 *subarglen = 0;
57 return "";
58}
59
Kumar Galadd50af22011-01-09 11:37:00 -060060static inline int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
61 const char *subarg, char *buf)
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +040062{
63 return -ENOSYS;
64}
65
66#endif /* CONFIG_HWCONFIG */
67
Kumar Galadd50af22011-01-09 11:37:00 -060068static inline int hwconfig(const char *opt)
69{
70 return hwconfig_f(opt, NULL);
71}
72
73static inline const char *hwconfig_arg(const char *opt, size_t *arglen)
74{
75 return hwconfig_arg_f(opt, arglen, NULL);
76}
77
78static inline int hwconfig_arg_cmp(const char *opt, const char *arg)
79{
80 return hwconfig_arg_cmp_f(opt, arg, NULL);
81}
82
83static inline int hwconfig_sub(const char *opt, const char *subopt)
84{
85 return hwconfig_sub_f(opt, subopt, NULL);
86}
87
88static inline const char *hwconfig_subarg(const char *opt, const char *subopt,
89 size_t *subarglen)
90{
91 return hwconfig_subarg_f(opt, subopt, subarglen, NULL);
92}
93
94static inline int hwconfig_subarg_cmp(const char *opt, const char *subopt,
95 const char *subarg)
96{
97 return hwconfig_subarg_cmp_f(opt, subopt, subarg, NULL);
98}
99
Anton Vorontsov93f9dcf2009-06-10 00:25:27 +0400100#endif /* _HWCONFIG_H */