/* * An inteface for configuring a hardware via u-boot environment. * * Copyright (c) 2009 MontaVista Software, Inc. * Copyright 2011 Freescale Semiconductor, Inc. * * Author: Anton Vorontsov <avorontsov@ru.mvista.com> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _HWCONFIG_H #define _HWCONFIG_H #include <linux/types.h> #include <asm/errno.h> #ifdef CONFIG_HWCONFIG extern int hwconfig_f(const char *opt, char *buf); extern const char *hwconfig_arg_f(const char *opt, size_t *arglen, char *buf); extern int hwconfig_arg_cmp_f(const char *opt, const char *arg, char *buf); extern int hwconfig_sub_f(const char *opt, const char *subopt, char *buf); extern const char *hwconfig_subarg_f(const char *opt, const char *subopt, size_t *subarglen, char *buf); extern int hwconfig_subarg_cmp_f(const char *opt, const char *subopt, const char *subarg, char *buf); #else static inline int hwconfig_f(const char *opt, char *buf) { return -ENOSYS; } static inline const char *hwconfig_arg_f(const char *opt, size_t *arglen, char *buf) { *arglen = 0; return ""; } static inline int hwconfig_arg_cmp_f(const char *opt, const char *arg, char *buf) { return -ENOSYS; } static inline int hwconfig_sub_f(const char *opt, const char *subopt, char *buf) { return -ENOSYS; } static inline const char *hwconfig_subarg_f(const char *opt, const char *subopt, size_t *subarglen, char *buf) { *subarglen = 0; return ""; } static inline int hwconfig_subarg_cmp_f(const char *opt, const char *subopt, const char *subarg, char *buf) { return -ENOSYS; } #endif /* CONFIG_HWCONFIG */ static inline int hwconfig(const char *opt) { return hwconfig_f(opt, NULL); } static inline const char *hwconfig_arg(const char *opt, size_t *arglen) { return hwconfig_arg_f(opt, arglen, NULL); } static inline int hwconfig_arg_cmp(const char *opt, const char *arg) { return hwconfig_arg_cmp_f(opt, arg, NULL); } static inline int hwconfig_sub(const char *opt, const char *subopt) { return hwconfig_sub_f(opt, subopt, NULL); } static inline const char *hwconfig_subarg(const char *opt, const char *subopt, size_t *subarglen) { return hwconfig_subarg_f(opt, subopt, subarglen, NULL); } static inline int hwconfig_subarg_cmp(const char *opt, const char *subopt, const char *subarg) { return hwconfig_subarg_cmp_f(opt, subopt, subarg, NULL); } #endif /* _HWCONFIG_H */