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#ifndef __LINUX_KCONFIG_H
#define __LINUX_KCONFIG_H
#include <generated/autoconf.h>
/*
* Helper macros to use CONFIG_ options in C/CPP expressions. Note that
* these only work with boolean and tristate options.
*/
/*
* Getting something that works in C and CPP for an arg that may or may
* not be defined is tricky. Here, if we have "#define CONFIG_BOOGER 1"
* we match on the placeholder define, insert the "0," for arg1 and generate
* the triplet (0, 1, 0). Then the last step cherry picks the 2nd arg (a one).
* When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when
* the last step cherry picks the 2nd arg, we get a zero.
*/
#define __ARG_PLACEHOLDER_1 0,
#define config_enabled(cfg) _config_enabled(cfg)
#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
#define ___config_enabled(__ignored, val, ...) val
/*
* IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y',
* 0 otherwise.
*
*/
#define IS_ENABLED(option) \
(config_enabled(option))
/*
* U-Boot add-on: Helper macros to reference to different macros
* (CONFIG_ or CONFIG_SPL_ prefixed), depending on the build context.
*/
#if defined(CONFIG_TPL_BUILD)
#define _CONFIG_PREFIX TPL_
#elif defined(CONFIG_SPL_BUILD)
#define _CONFIG_PREFIX SPL_
#else
#define _CONFIG_PREFIX
#endif
#define config_val(cfg) _config_val(_CONFIG_PREFIX, cfg)
#define _config_val(pfx, cfg) __config_val(pfx, cfg)
#define __config_val(pfx, cfg) CONFIG_ ## pfx ## cfg
/*
* CONFIG_VAL(FOO) evaluates to the value of
* CONFIG_FOO if CONFIG_SPL_BUILD is undefined,
* CONFIG_SPL_FOO if CONFIG_SPL_BUILD is defined.
* CONFIG_TPL_FOO if CONFIG_TPL_BUILD is defined.
*/
#define CONFIG_VAL(option) config_val(option)
/*
* CONFIG_IS_ENABLED(FOO) evaluates to
* 1 if CONFIG_SPL_BUILD is undefined and CONFIG_FOO is set to 'y',
* 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_FOO is set to 'y',
* 1 if CONFIG_TPL_BUILD is defined and CONFIG_TPL_FOO is set to 'y',
* 0 otherwise.
*/
#define CONFIG_IS_ENABLED(option) \
(config_enabled(CONFIG_VAL(option)))
#endif /* __LINUX_KCONFIG_H */
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