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 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License as
  11 * published by the Free Software Foundation; either version 2 of
  12 * the License, or (at your option) any later version.
  13 */
  14
  15#ifndef _HWCONFIG_H
  16#define _HWCONFIG_H
  17
  18#include <linux/types.h>
  19#include <asm/errno.h>
  20
  21#ifdef CONFIG_HWCONFIG
  22
  23extern int hwconfig_f(const char *opt, char *buf);
  24extern const char *hwconfig_arg_f(const char *opt, size_t *arglen, char *buf);
  25extern int hwconfig_arg_cmp_f(const char *opt, const char *arg, char *buf);
  26extern int hwconfig_sub_f(const char *opt, const char *subopt, char *buf);
  27extern const char *hwconfig_subarg_f(const char *opt, const char *subopt,
  28                                     size_t *subarglen, char *buf);
  29extern int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
  30                                 const char *subarg, char *buf);
  31#else
  32
  33static inline int hwconfig_f(const char *opt, char *buf)
  34{
  35        return -ENOSYS;
  36}
  37
  38static inline const char *hwconfig_arg_f(const char *opt, size_t *arglen,
  39                                         char *buf)
  40{
  41        *arglen = 0;
  42        return "";
  43}
  44
  45static inline int hwconfig_arg_cmp_f(const char *opt, const char *arg,
  46                                     char *buf)
  47{
  48        return -ENOSYS;
  49}
  50
  51static inline int hwconfig_sub_f(const char *opt, const char *subopt, char *buf)
  52{
  53        return -ENOSYS;
  54}
  55
  56static inline const char *hwconfig_subarg_f(const char *opt, const char *subopt,
  57                                            size_t *subarglen, char *buf)
  58{
  59        *subarglen = 0;
  60        return "";
  61}
  62
  63static inline int hwconfig_subarg_cmp_f(const char *opt, const char *subopt,
  64                                        const char *subarg, char *buf)
  65{
  66        return -ENOSYS;
  67}
  68
  69#endif /* CONFIG_HWCONFIG */
  70
  71static inline int hwconfig(const char *opt)
  72{
  73        return hwconfig_f(opt, NULL);
  74}
  75
  76static inline const char *hwconfig_arg(const char *opt, size_t *arglen)
  77{
  78        return hwconfig_arg_f(opt, arglen, NULL);
  79}
  80
  81static inline int hwconfig_arg_cmp(const char *opt, const char *arg)
  82{
  83        return hwconfig_arg_cmp_f(opt, arg, NULL);
  84}
  85
  86static inline int hwconfig_sub(const char *opt, const char *subopt)
  87{
  88        return hwconfig_sub_f(opt, subopt, NULL);
  89}
  90
  91static inline const char *hwconfig_subarg(const char *opt, const char *subopt,
  92                                          size_t *subarglen)
  93{
  94        return hwconfig_subarg_f(opt, subopt, subarglen, NULL);
  95}
  96
  97static inline int hwconfig_subarg_cmp(const char *opt, const char *subopt,
  98                                      const char *subarg)
  99{
 100        return hwconfig_subarg_cmp_f(opt, subopt, subarg, NULL);
 101}
 102
 103#endif /* _HWCONFIG_H */
 104