css_interface.c

SigmDesign SMP8634 media decode chip development SDK

/****************************************************************************
 * Copyright (c) Sigma Designs, Inc. 2005. All rights reserved.
 */
/**
 *	@file     css_interface.c
 *
 *	@brief    Wrapper for css shared library.
 * 
 *  @version  0.1
 *
 *  @buglog   First revision.
 *
 *	@author   Alan Liddeke ( from Julien's rmupnp project )
 *	
 ****************************************************************************/



/*---------------------------------------------------------------------------
                                 INCLUDES
 ---------------------------------------------------------------------------*/

#define ALLOW_OS_CODE
#include "rmdef/rmdef.h"
#include "rmdrm/include/rmdrm.h"
#include "../include/css_interface.h"
#include "../../include/css_version.h"


/*---------------------------------------------------------------------------
                                 MACROS
 ---------------------------------------------------------------------------*/

#if 1
#define CSSDBG ENABLE
#else
#define CSSDBG DISABLE
#endif

#if (EM86XX_MODE == EM86XX_MODEID_WITHHOST) || (EM86XX_CHIP == EM86XX_CHIPID_TANGO2)
static struct css_interface_s *css_interface;

#undef FUNC0
#undef FUNC1
#undef FUNC2
#undef FUNC3
#undef CSS_AUTHENTICATION_API
#undef CSS_DECRYPTION_API

#define CSS_AUTHENTICATION_API
#define CSS_DECRYPTION_API



#undef FUNC
#define FUNC(name, return_error, ...)							\
if (css_interface){ 									\
	RMDBGLOG((CSSDBG,"got %p for " #name "\n", css_interface->name));		\
	return css_interface->name(__VA_ARGS__);					\
} else {										\
	RMDBGLOG((CSSDBG,"Attempting to load CSS...\n"));				\
	if ((css_interface = load_drm(CSS, NULL))) {                                    \
		RMDBGLOG((CSSDBG,"got %p for " #name "\n", css_interface->name));	\
		return css_interface->name(__VA_ARGS__);				\
	} else {									\
		RMDBGLOG((CSSDBG,"Cannot load CSS\n"));                                 \
		return return_error;							\
	}										\
}



#ifdef CSS_USE_CONTEXT
	#define FUNC0(name, return_type, return_error, t1, p1)				\
	return_type name (t1 p1){						\
		FUNC(name, return_error)					\
	}									\
				
	#define FUNC1(name, return_type, return_error, t1, p1, t2, p2)			\
	return_type name (t1 p1, t2 p2){						\
		FUNC(name, return_error, p1, p2)					\
	}									\
	
	#define FUNC2(name, return_type, return_error, t1, p1, t2, p2, t3, p3)		\
	return_type name (t1 p1, t2 p2, t3 p3){					\
		FUNC(name, return_error, p1, p2, p3)				\
	}

#else

	#define FUNC0(name, return_type, return_error)				\
	return_type name (void){						\
		FUNC(name, return_error)					\
	}									\
	
	#define FUNC1(name, return_type, return_error, t1, p1)			\
	return_type name (t1 p1){						\
		FUNC(name, return_error, p1)					\
	}									\
	
	#define FUNC2(name, return_type, return_error, t1, p1, t2, p2)		\
	return_type name (t1 p1, t2 p2){					\
		FUNC(name, return_error, p1, p2)				\
	}	
	
	#define FUNC3(name, return_type, return_error, t1, p1, t2, p2, t3, p3)  \
	return_type name (t1 p1, t2 p2, t3 p3){                                 \
		FUNC(name,return_error, p1, p2, p3)                             \
	}
#endif


	
	
#include "../include/css_interface.inc"

#endif /* EM86XX_MODEID_WITHHOST || EM86XX_CHIPID_TANGO2 */