/****************************************************************************
 * Copyright (c) 2004 Digital Stream Technologies Inc.  All Rights Reserved.
 *
 * Module:      dsthalca.h
 * Author:		Jun-ku Park, hwatk@dstreamtech.com
 * Description: DST HAL [Conditional Access] Platform Independent Includes
 *              
 * $Id
 *
 ***************************************************************************/

#ifndef __DST_HALCA_H__
#define __DST_HALCA_H__

#include "dsthalcommon.h"

typedef enum {
	CaState_UNKNOWN=0,	/* Tuner is not initialized. */
	CaState_INIT,		/* Tuner is initialized. */
	CaState_START,		/* Tuner is started. */
	CaState_STOP,		/* Tuner is stopped. */
	CaState_MAX
} CaState_t;

typedef enum {
	CaScrMode_DEFAULT=0,
	CaScrMode_ECB=200,
	CaScrMode_CBC,
	CaScrMode_MAX
} CaScrMode_t;

typedef enum {
	CaScrType_PASSTHROUGH=0,
	CaScrType_3DES=200,
	CaScrType_DES,
	CaScrType_MAX
} CaScrType_t;

typedef enum {
	CaDescrMode_DEFAULT=0,
	CaDescrMode_ECB=200,
	CaDescrMode_CBC,
	CaDescrMode_MAX
} CaDescrMode_t;

typedef enum {
	CaDescrType_PASSTHROUGH=0,
	CaDescrType_DVB_CSA=200,
	CaDescrType_3DES,
	CaDescrType_DES,
	CaDescrType_CSS,
	CaDescrType_M2,
	CaDescrType_MAX
} CaDescrType_t;

typedef enum {
	CaParity_ODD = 1L,
	CaParity_EVEN,
} CaParity_t;

typedef struct tag_DST_CA
{
	CaState_t			bCurState;
	
	/* Scrambler Attribute */
	CaScrMode_t			ScrMode;
	CaScrType_t			ScrType;
	DS_BOOL				ScrParityEnable;
	
	/* Descramber Attribute */
	CaDescrMode_t		DescrMode;
	CaDescrType_t		DescrType;
	DS_BOOL				DescrParityEnable;
	
	/* CA PID Filter */
	DS_U32				Pid1, Pid2;
	
	/* CA Key */
	DS_U32				dwEvenKeyHigh;
	DS_U32				dwEvenKeyLow;
	DS_U32				dwOddKeyHigh;
	DS_U32				dwOddKeyLow;
	
	DS_BOOL				bStarted;
} *P_DST_CA, DST_CA;

#ifdef __cplusplus
extern "C" {
#endif

DHL_RESULT DHL_CA_Init(void);
DHL_RESULT DHL_CA_SetScramblingAlgorithm( CaScrMode_t Mode, CaScrType_t Type, DS_BOOL bParityEnable );
DHL_RESULT DHL_CA_SetDescramblingAlgorithm( CaDescrMode_t Mode, CaDescrType_t Type, DS_BOOL bParityEnable );
DHL_RESULT DHL_CA_Start( DS_U32 Pid1, DS_U32 Pid2, DS_U32 EvenKeyHigh, DS_U32 EvenKeyLow, DS_U32 OddKeyHigh, DS_U32 OddKeyLow );
DHL_RESULT DHL_CA_Stop(void);
DHL_RESULT DHL_CA_Close(void);
DHL_RESULT DHL_CA_ChangePIDs( DS_U32 Pid1, DS_U32 Pid2 );

DHL_RESULT DHL_CA_SetMode(CaDescrMode_t mode);
CaDescrMode_t DHL_CA_GetMode(void);
DS_BOOL DHL_CA_IsStarted(void);

#ifdef __cplusplus
}
#endif

#endif /* __DST_HALCA_H__ */