wmdrm_receiver.h

本程序为ST公司开发的源代码

/**************************************************
 *
 * WMDRM_Receiver.h
 *
 * CVS ID:   $Id: WMDRM_Receiver.h,v 1.1 2007/09/21 05:35:17 hara Exp $
 * Author:   Fumio HARA [FH] - STM
 * Date:     $Date: 2007/09/21 05:35:17 $
 * Revision: $Revision: 1.1 $
 *
 * Description:
 *
 *   Main entry point for WMDRM Network Receiver task.
 *
 ***************************************************
 *
 * COPYRIGHT (C) ST Microelectronics  2007
 *            All Rights Reserved
 *
 ****************************************************
 *
 * STM CVS Log:
 *
 * $Log: WMDRM_Receiver.h,v $
 * Revision 1.1  2007/09/21 05:35:17  hara
 * Initial implementation for WMDRM feature into A+.
 *
 *
 ***************************************************/

#include "gendef.h"
#include "xfile.h"
#include "filesys.h"

#include "drmtypes.h"
#include "DrmAes.h"

/*
 * Define a context for Proximity Detection
 */
typedef struct {

    /* 
     * State for WMDRM Receiver
     */
    DRM_BYTE State;

    DRM_BYTE USBDeviceConfig;

    /*
     * Data from the Registration Response message
     *
     * This data is valid in the STATE_GET_PROXIMITY_CHALLENGE and STATE_SEND_PROXIMITY_RESPONSE
     */
    DRM_AES_KEY *ProximityContentEncryptionKey;       

    DRM_DWORD ObjectHandle;
    DRM_DWORD MediaSessionId;                     

    DRM_AES_KEY ContentEncryption_AES_Key[DRM_AES_KEYSIZE_128];       
    
    DRM_DWORD MaxDataBlockSize;
    DRM_BYTE *NextDataBuffer;
    DRM_DWORD NextDataOffset; 

    DRM_DWORD OperationParameter[5];    
    DRM_WORD  ResponseCode;            

#if 0 // No used for the moment.   
    DRM_DWORD TimeOffset;                                   
#endif
    
} WMDRMNET_PROXIMITY_CONTEXT;
                    

/*
 * Define GetDirItem info on WMDRM
 */
typedef struct {

    DRM_WORD  loopState;
    DRM_DWORD NumObjectHandle;       
    DRM_DWORD curObjectHandle;
    DRM_WORD  curObjectFormat;
    DRM_BYTE *pbMessageObjectHandle;
    DRM_WORD  prev_scan_index;

} DRM_GETDIRITEM;

                    
/* Internal State */
#define STATE_SEND_REGISTRATION_REQUEST            0x0 /* RegistrationRequest */
#define STATE_GET_REGISTRATION_RESPONSE            0x1 /* RegistrationResponse */
#define STATE_GET_PROXIMITY_CHALLENGE              0x2 /* ProximityChallenge */
#define STATE_SEND_PROXIMITY_RESPONSE              0x3 /* ProximityResponse */
#define STATE_SEND_LICENSE_REQUEST                 0x4 /* LicenseRequest */
#define STATE_GET_LICENSE_RESPONSE                 0x5 /* LicenseResponse */
#define STATE_OPEN_MEDIA_SESSION                   0x6 /* OpenMediaSession */
#define STATE_CLOSE_MEDIA_SESSION                  0x7 /* CloseMediaSession */
#define STATE_GET_NEXT_DATA_BLOCK                  0x8 /* GetNextDataBlock */
#define STATE_SET_CURRENT_TIME_POSITION            0x9 /* SetCurrentTimePosition */   
#define STATE_GET_PARTIAL_OBJECT_DATA              0xA /* GetPartialObject */        
#define STATE_GET_OBJECT_REFERENCES                0xB /* GetObjectReferences */
/* All transition goes to STATE_PROXIMITY_DETECTED finally. */
#define STATE_PROXIMITY_DETECTED                   0xF /* COMPLETE : No more action */

#define WMDRM_GET_REGISTRATION                     STATE_SEND_REGISTRATION_REQUEST       
#define WMDRM_OPEN_MEDIA_SESSION                   STATE_OPEN_MEDIA_SESSION          
#define WMDRM_CLOSE_MEDIA_SESSION                  STATE_CLOSE_MEDIA_SESSION
#define WMDRM_GET_LICENSE                          STATE_SEND_LICENSE_REQUEST
#define WMDRM_GET_NEXT_DATA_BLOCK                  STATE_GET_NEXT_DATA_BLOCK          
#define WMDRM_SET_CURRENT_TIME_POSITION            STATE_SET_CURRENT_TIME_POSITION      
#define WMDRM_GET_PARTIAL_OBJECT_DATA              STATE_GET_PARTIAL_OBJECT_DATA          
#define WMDRM_GET_OBJECT_REFERENCES                STATE_GET_OBJECT_REFERENCES  

/* USBDeviceConfig */                                        
#define USBDeviceConfig_WMDRM_ND_SUPPORT           0x80       

#define USBDeviceSessionConfig_MediaSessionOpen    0x20        
#define USBDeviceSessionConfig_LicenseAvailable    0x10

#define USBDeviceSessionConfig_CtrlCapability      0x01
#define USBDeviceSessionConfig_DRMStatus           0x02
#define USBDeviceSessionConfig_LicenseStatus       0x04
#define USBDeviceSessionConfig_DRMDeliveryOptions  0x08

#define MASK_USBDeviceSessionConfig                0xC0         
#define MASK_USBDeviceSessionConfig_WMDRM_NDR      0x0E

#define IS_USBDeviceSuppport_WMDRM_ND              (ProximityContext.USBDeviceConfig & USBDeviceConfig_WMDRM_ND_SUPPORT)
#define IS_USBDeviceSessionObject_WMDRM_NDR        ((ProximityContext.USBDeviceConfig & MASK_USBDeviceSessionConfig_WMDRM_NDR) \
                                                                                     == MASK_USBDeviceSessionConfig_WMDRM_NDR)    
#define IS_USBDeviceMediaSession_Open              (ProximityContext.USBDeviceConfig & USBDeviceSessionConfig_MediaSessionOpen)                                                                                      
#define IS_USBDeviceSupport_CtrlCapability         (ProximityContext.USBDeviceConfig & USBDeviceSessionConfig_CtrlCapability) 
#define IS_USBDeviceLicense_Available              (ProximityContext.USBDeviceConfig & USBDeviceSessionConfig_LicenseAvailable) 

/* Object Format */
#define OBJECT_FORMAT_CODE_ASSOCIATION             0x3001
#define OBJECT_FORMAT_CODE_WMA                     0xB901
#define OBJECT_FORMAT_CODE_MP3                     0x3009
#define OBJECT_FORMAT_CODE_AAC                     0xB903           
#define OBJECT_FORMAT_CODE_PLA                     0xBA05 /* Abstract PlayList on MTP specification. */           

/* WMDRM_GetDirItem internal State */
#define STATE_GET_OBJECTHANLDES_ROOT_DIR           0x00
#define STATE_GET_OBJECTHANDLES_CHILD_DIR          0x01
#define STATE_GET_OBJECTINFO                       0x02
                            
extern WMDRMNET_PROXIMITY_CONTEXT ProximityContext;


DRM_RESULT
WmdrmNet_TASK_transition(
    DRM_BYTE handleState
);

DRM_RESULT
WmdrmNet_DATA_transition( 
    DRM_BYTE handleState,
    t_child_cmd_event *cmd_event,
    DRM_BOOL execute_cmd
);

void
WmdrmNetReceiverInit(void);

GRESULT
WMDRM_GetDirItem(SCAN_STRUCT *scans, DIR_ITEM *item, uint8 *buf);

GRESULT
WMDRM_Detect(DUID cdid, int partition, FS_DESCRIPTOR *fsd);