1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * An inteface for configuring a hardware via u-boot environment.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (c) 2009 MontaVista Software, Inc.
5*4882a593Smuzhiyun * Copyright 2011 Freescale Semiconductor, Inc.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #ifndef _HWCONFIG_H
13*4882a593Smuzhiyun #define _HWCONFIG_H
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/types.h>
16*4882a593Smuzhiyun #include <linux/errno.h>
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #ifdef CONFIG_HWCONFIG
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun extern int hwconfig_f(const char *opt, char *buf);
21*4882a593Smuzhiyun extern const char *hwconfig_arg_f(const char *opt, size_t *arglen, char *buf);
22*4882a593Smuzhiyun extern int hwconfig_arg_cmp_f(const char *opt, const char *arg, char *buf);
23*4882a593Smuzhiyun extern int hwconfig_sub_f(const char *opt, const char *subopt, char *buf);
24*4882a593Smuzhiyun extern const char *hwconfig_subarg_f(const char *opt, const char *subopt,
25*4882a593Smuzhiyun size_t *subarglen, char *buf);
26*4882a593Smuzhiyun extern int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
27*4882a593Smuzhiyun const char *subarg, char *buf);
28*4882a593Smuzhiyun #else
29*4882a593Smuzhiyun
hwconfig_f(const char * opt,char * buf)30*4882a593Smuzhiyun static inline int hwconfig_f(const char *opt, char *buf)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun return -ENOSYS;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
hwconfig_arg_f(const char * opt,size_t * arglen,char * buf)35*4882a593Smuzhiyun static inline const char *hwconfig_arg_f(const char *opt, size_t *arglen,
36*4882a593Smuzhiyun char *buf)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun *arglen = 0;
39*4882a593Smuzhiyun return "";
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
hwconfig_arg_cmp_f(const char * opt,const char * arg,char * buf)42*4882a593Smuzhiyun static inline int hwconfig_arg_cmp_f(const char *opt, const char *arg,
43*4882a593Smuzhiyun char *buf)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun return -ENOSYS;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun
hwconfig_sub_f(const char * opt,const char * subopt,char * buf)48*4882a593Smuzhiyun static inline int hwconfig_sub_f(const char *opt, const char *subopt, char *buf)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun return -ENOSYS;
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
hwconfig_subarg_f(const char * opt,const char * subopt,size_t * subarglen,char * buf)53*4882a593Smuzhiyun static inline const char *hwconfig_subarg_f(const char *opt, const char *subopt,
54*4882a593Smuzhiyun size_t *subarglen, char *buf)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun *subarglen = 0;
57*4882a593Smuzhiyun return "";
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
hwconfig_subarg_cmp_f(const char * opt,const char * subopt,const char * subarg,char * buf)60*4882a593Smuzhiyun static inline int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
61*4882a593Smuzhiyun const char *subarg, char *buf)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun return -ENOSYS;
64*4882a593Smuzhiyun }
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun #endif /* CONFIG_HWCONFIG */
67*4882a593Smuzhiyun
hwconfig(const char * opt)68*4882a593Smuzhiyun static inline int hwconfig(const char *opt)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun return hwconfig_f(opt, NULL);
71*4882a593Smuzhiyun }
72*4882a593Smuzhiyun
hwconfig_arg(const char * opt,size_t * arglen)73*4882a593Smuzhiyun static inline const char *hwconfig_arg(const char *opt, size_t *arglen)
74*4882a593Smuzhiyun {
75*4882a593Smuzhiyun return hwconfig_arg_f(opt, arglen, NULL);
76*4882a593Smuzhiyun }
77*4882a593Smuzhiyun
hwconfig_arg_cmp(const char * opt,const char * arg)78*4882a593Smuzhiyun static inline int hwconfig_arg_cmp(const char *opt, const char *arg)
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun return hwconfig_arg_cmp_f(opt, arg, NULL);
81*4882a593Smuzhiyun }
82*4882a593Smuzhiyun
hwconfig_sub(const char * opt,const char * subopt)83*4882a593Smuzhiyun static inline int hwconfig_sub(const char *opt, const char *subopt)
84*4882a593Smuzhiyun {
85*4882a593Smuzhiyun return hwconfig_sub_f(opt, subopt, NULL);
86*4882a593Smuzhiyun }
87*4882a593Smuzhiyun
hwconfig_subarg(const char * opt,const char * subopt,size_t * subarglen)88*4882a593Smuzhiyun static inline const char *hwconfig_subarg(const char *opt, const char *subopt,
89*4882a593Smuzhiyun size_t *subarglen)
90*4882a593Smuzhiyun {
91*4882a593Smuzhiyun return hwconfig_subarg_f(opt, subopt, subarglen, NULL);
92*4882a593Smuzhiyun }
93*4882a593Smuzhiyun
hwconfig_subarg_cmp(const char * opt,const char * subopt,const char * subarg)94*4882a593Smuzhiyun static inline int hwconfig_subarg_cmp(const char *opt, const char *subopt,
95*4882a593Smuzhiyun const char *subarg)
96*4882a593Smuzhiyun {
97*4882a593Smuzhiyun return hwconfig_subarg_cmp_f(opt, subopt, subarg, NULL);
98*4882a593Smuzhiyun }
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun #endif /* _HWCONFIG_H */
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