/*
?*?（C）?Copyright?2007?Semihalf
?*
?*?Written?by:?Rafal?Jaworowski?
?*
?*?See?file?CREDITS?for?list?of?people?who?contributed?to?this
?*?project.
?*
?*?This?program?is?free?software;?you?can?redistribute?it?and/or
?*?modify?it?under?the?terms?of?the?GNU?General?Public?License?as
?*?published?by?the?Free?Software?Foundation;?either?version?2?of
?*?the?License?or?（at?your?option）?any?later?version.
?*
?*?This?program?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
?*?GNU?General?Public?License?for?more?details.
?*
?*?You?should?have?received?a?copy?of?the?GNU?General?Public?License
?*?along?with?this?program;?if?not?write?to?the?Free?Software
?*?Foundation?Inc.?59?Temple?Place?Suite?330?Boston
?*?MA?02111-1307?USA
?*
?*/

#include?
#include?
#include?
#include?
#include?
#include?
#include?

#include?“api_private.h“

#define?DEBUG
#undef?DEBUG

/*****************************************************************************
?*
?*?This?is?the?API?core.
?*
?*?API_?functions?are?part?of?U-Boot?code?and?constitute?the?lowest?level
?*?calls:
?*
?*??-?they?know?what?values?they?need?as?arguments
?*??-?their?direct?return?value?pertains?to?the?API_?“shell“?itself?（0?on
?*????success?some?error?code?otherwise）
?*??-?if?the?call?returns?a?value?it?is?buried?within?arguments
?*
?****************************************************************************/

#ifdef?DEBUG
#define?debugf（fmt?args...）?do?{?printf（“%s（）:?“?__func__）;?printf（fmt?##args）;?}?while?（0）
#else
#define?debugf（fmt?args...）
#endif

typedef	int?（*cfp_t）（va_list?argp）;

static?int?calls_no;

/*
?*?pseudo?signature:
?*
?*?int?API_getc（int?*c）
?*/
static?int?API_getc（va_list?ap）
{
	int?*c;

	if?（（c?=?（int?*）va_arg（ap?u_int32_t））?==?NULL）
		return?API_EINVAL;

	*c?=?getc（）;
	return?0;
}

/*
?*?pseudo?signature:
?*
?*?int?API_tstc（int?*c）
?*/
static?int?API_tstc（va_list?ap）
{
	int?*t;

	if?（（t?=?（int?*）va_arg（ap?u_int32_t））?==?NULL）
		return?API_EINVAL;

	*t?=?tstc（）;
	return?0;
}

/*
?*?pseudo?signature:
?*
?*?int?API_putc（char?*ch）
?*/
static?int?API_putc（va_list?ap）
{
	char?*c;

	if?（（c?=?（char?*）va_arg（ap?u_int32_t））?==?NULL）
		return?API_EINVAL;

	putc（*c）;
	return?0;
}

/*
?*?pseudo?signature:
?*
?*?int?API_puts（char?**s）
?*/
static?int?API_puts（va_list?ap）
{
	char?*s;

	if?（（s?=?（char?*）va_arg（ap?u_int32_t））?==?NULL）
		return?API_EINVAL;

	puts（s）;
	return?0;
}

/*
?*?pseudo?signature:
?*
?*?int?API_reset（void）
?*/
static?int?API_reset（va_list?ap）
{
	do_reset（NULL?0?0?NULL）;

	/*?NOT?REACHED?*/
	return?0;
}

/*
?*?pseudo?signature:
?*
?*?int?API_get_sys_info（struct?sys_info?*si）
?*
?*?fill?out?the?sys_info?struct?containing?selected?parameters?about?the
?*?machine
?*/
static?int?API_get_sys_info（va_list?ap）
{
	struct?sys_info?*si;

	si?=