LXR uboot/include/hwconfig.h

   1/*
   2 * An inteface for configuring a hardware via u-boot environment.
   3 *
   4 * Copyright (c) 2009  MontaVista Software, Inc.
   5 * Copyright 2011 Freescale Semiconductor, Inc.
   6 *
   7 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
   8 *
   9 * SPDX-License-Identifier:     GPL-2.0+
  10 */
  11
  12#ifndef _HWCONFIG_H
  13#define _HWCONFIG_H
  14
  15#include <linux/types.h>
  16#include <linux/errno.h>
  17
  18#ifdef CONFIG_HWCONFIG
  19
  20extern 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);
  28#else
  29
  30static inline int hwconfig_f(const char *opt, char *buf)
  31{
  32        return -ENOSYS;
  33}
  34
  35static inline const char *hwconfig_arg_f(const char *opt, size_t *arglen,
  36                                         char *buf)
  37{
  38        *arglen = 0;
  39        return "";
  40}
  41
  42static inline int hwconfig_arg_cmp_f(const char *opt, const char *arg,
  43                                     char *buf)
  44{
  45        return -ENOSYS;
  46}
  47
  48static inline int hwconfig_sub_f(const char *opt, const char *subopt, char *buf)
  49{
  50        return -ENOSYS;
  51}
  52
  53static inline const char *hwconfig_subarg_f(const char *opt, const char *subopt,
  54                                            size_t *subarglen, char *buf)
  55{
  56        *subarglen = 0;
  57        return "";
  58}
  59
  60static inline int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
  61                                        const char *subarg, char *buf)
  62{
  63        return -ENOSYS;
  64}
  65
  66#endif /* CONFIG_HWCONFIG */
  67
  68static 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
 100#endif /* _HWCONFIG_H */
 101