//---------------------------------------------------------------------------
//?Module?Name:?EDID.c
//?Module?Description:?ParseEDID
//
//?Copyright??2005-2008?SII?Inc.??All?rights?reserved.
//---------------------------------------------------------------------------
#include?
#include?“TypeDefs.h“
#include?“EDID.h“
#include?“MCU.h“
#include?“SiIIIC.h“
#include?“SiITX.h“
#include?“SiITXHDCP.h“

BOOL?CEAOnFisrtPage;??//?when?offset?pointer?（Slave?Addr?0x60）?is?not?used?CEA861B?extension?always?on?second?page

//---------------------------------------------------------------------------
static?BYTE?BlockReadEDID（?BYTE?NBytes?BYTE?Addr?BYTE?*?Data?）{

??TmpD.MDDC.SlaveAddr?=?EDID_SLV;
??TmpD.MDDC.Offset?=?MDDCReadOffset（）;
??TmpD.MDDC.RegAddr?=?Addr;
??TmpD.MDDC.NBytesLSB?=?NBytes;
??TmpD.MDDC.NBytesMSB?=?0;
??TmpD.MDDC.Dummy?=?0;
??if（TmpD.MDDC.Offset）
???????TmpD.MDDC.Cmd?=?MASTER_CMD_ENH_RD;
??else
???????TmpD.MDDC.Cmd?=?MASTER_CMD_SEQ_RD;
??//TmpD.MDDC.PData?=?Data;
??BlockRead_MDDC（&TmpD.MDDC?Data）;
??return?0;
}

//---------------------------------------------------------------------------
static?void?UpdateCRC16WithByte（?WORD?*?pCRC?BYTE?Data?）{
BYTE?i;
WORD?XORedIn?CRC;

?CRC?=?*pCRC;
?for（i?=?0;?i????XORedIn?=?（WORD）Data?^?CRC;?Data?>>=1;
???CRC?>>=1;
???if（XORedIn?&?MASK_LSBit）
??????CRC?^=POLYNOM;
?}
?*pCRC?=?CRC;
}

//---------------------------------------------------------------------------
static?void?UpdateCRC16WithBlock（?WORD?*?pCRC?BYTE?NBytes?BYTE?*?Data?）{
BYTE?i;

???for?（i?=?0;?i??????UpdateCRC16WithByte（?pCRC?Data[i]?）;
}

//---------------------------------------------------------------------------
static?BYTE?DecodeHeader（?BYTE?*?HeaderError?WORD?*?pCRC16?）{
BYTE?i?Error;
IRAM?BYTE?Data[8];

????if（Error?=?BlockReadEDID（8?0?Data））
????????return?Error;

????UpdateCRC16WithBlock（?pCRC16?8?Data）;
????if（!（Data[0]?|?Data[7]））
????{
????????for（i?=?1;?i????????????if（Data[i]!=?0xFF）
???????????????*?HeaderError?=?BAD_HEADER;
????????}
????}
????else
????????????*?HeaderError?=?BAD_HEADER;
????return?Error;
}

//---------------------------------------------------------------------------
static?BYTE?CheckCRC（?BYTE?Addr?BYTE?*?CRC?WORD?*?pCRC16?）{
BYTE??Error?i?base;
IRAM?BYTE?Data[8];

????base?=?Addr;
????Addr?=?0;

????for（*CRC?=?0;?Addr??????????Error?=?BlockReadEDID（8?base?+?Addr?Data）;
?????????if（Error）
????????????????break;
?????????for（?i?=?0;?i???????????????*CRC?+=?Data[i];
??????????????UpdateCRC16WithBlock（?pCRC16?8?Data）;
?????????}
????}
????return?Error;
}

//---------------------------------------------------------------------------
static?BYTE?CheckEDIDVersion（?BYTE?*?Versionerror?WORD?*?pCRC16?）{
IRAM?BYTE?Data[2];
BYTE??Error;

????*?Versionerror?=?0;

????if（Error?=?BlockReadEDID（2?VER_ADDR?Data）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????30439??2008-08-07?17:19??9134_soft_v20100113\EDID.c
?????文件????????1732??2008-07-21?17:17??9134_soft_v20100113\EDID.h
?????文件????????4773??2008-08-13?10:26??9134_soft_v20100113\main.c
?????文件????????4534??2008-07-16?20:05??9134_soft_v20100113\MCU.c
?????文件????????1951??2008-07-21?16:08??9134_soft_v20100113\MCU.h
?????文件????????2558??2008-05-26?22:09??9134_soft_v20100113\reg89f.h
?????文件????????8490??2008-07-16?20:39??9134_soft_v20100113\SiIIIC.c
?????文件????????1661??2008-07-16?20:39??9134_soft_v20100113\SiIIIC.h
?????文件???????43778??2010-01-13?11:54??9134_soft_v20100113\SiITX.c
?????文件????????5809??2010-01-13?12:14??9134_soft_v20100113\SiITX.h
?????文件???????11010??2010-01-13?12:13??9134_soft_v20100113\SiITXDefs.h
?????文件???????30586??2010-01-13?12:11??9134_soft_v20100113\SiITXHDCP.c
?????文件????????6384??2008-08-07?16:47??9134_soft_v20100113\SiITXHDCP.h
?????文件???????11564??2008-07-17?10:01??9134_soft_v20100113\SiITXInfoPkts.c
?????文件????????2777??2008-06-20?10:56??9134_soft_v20100113\SiITXInfoPkts.h
?????文件???????19507??2008-08-04?21:34??9134_soft_v20100113\SiIVRTables.c
?????文件????????2292??2008-08-04?22:01??9134_soft_v20100113\SiIVRTables.h
?????文件?????????688??2008-07-16?11:39??9134_soft_v20100113\TypeDefs.h
?????目錄???????????0??2010-01-13?12:16??9134_soft_v20100113\