u8 fgCompareRi(void)
{
u8 bTemp;
u8 bHDCPBuf[4];
MT8193_HDCP_FUNC();
/* Read R0/ Ri from Transmitter */
/* fgI2CDataRead(HDMI_DEV_GRL, GRL_RI_0, HDCP_RI_COUNT, bHDCPBuf+HDCP_RI_COUNT); */
bReadDataHdmiGRL(GRL_RI_0, HDCP_RI_COUNT, &bHDCPBuf[HDCP_RI_COUNT]);
/* Read R0'/ Ri' from Receiver */
fgDDCDataRead(RX_ID, RX_REG_RI, HDCP_RI_COUNT, bHDCPBuf);
MT8193_HDCP_LOG("bHDCPBuf[0]=0x%x,bHDCPBuf[1]=0x%x,bHDCPBuf[2]=0x%x,bHDCPBuf[3]=0x%x\n",
bHDCPBuf[0], bHDCPBuf[1], bHDCPBuf[2], bHDCPBuf[3]);
/* compare R0 and R0' */
for (bTemp = 0; bTemp < HDCP_RI_COUNT; bTemp++) {
if (bHDCPBuf[bTemp] == bHDCPBuf[bTemp + HDCP_RI_COUNT]) {
continue;
} else {
break;
}
}
if (bTemp == HDCP_RI_COUNT) {
return TRUE;
} else {
return FALSE;
}
}
void vSendAn(void)
{
u8 bHDCPBuf[HDCP_AN_COUNT];
MT8193_HDCP_FUNC();
/* Step 1: issue command to general a new An value */
/* (1) read the value first */
/* (2) set An control as stop to general a An first */
vStopAn();
/* Step 2: Read An from Transmitter */
bReadDataHdmiGRL(GRL_WR_AN0, HDCP_AN_COUNT, bHDCPBuf);
/* Step 3: Send An to Receiver */
fgDDCDataWrite(RX_ID, RX_REG_HDCP_AN, HDCP_AN_COUNT, bHDCPBuf);
}
void vExchangeKSVs(void)
{
u8 bHDCPBuf[HDCP_AKSV_COUNT];
MT8193_HDCP_FUNC();
/* Step 1: read Aksv from transmitter, and send to receiver */
if (fgHostKey()) {
fgDDCDataWrite(RX_ID, RX_REG_HDCP_AKSV, HDCP_AKSV_COUNT, HDMI_AKSV);
} else {
/* fgI2CDataRead(HDMI_DEV_GRL, GRL_RD_AKSV0, HDCP_AKSV_COUNT, bHDCPBuf); */
bReadDataHdmiGRL(GRL_RD_AKSV0, HDCP_AKSV_COUNT, bHDCPBuf);
fgDDCDataWrite(RX_ID, RX_REG_HDCP_AKSV, HDCP_AKSV_COUNT, bHDCPBuf);
}
/* Step 4: read Bksv from receiver, and send to transmitter */
fgDDCDataRead(RX_ID, RX_REG_HDCP_BKSV, HDCP_BKSV_COUNT, bHDCPBuf);
/* fgI2CDataWrite(HDMI_DEV_GRL, GRL_WR_BKSV0, HDCP_BKSV_COUNT, bHDCPBuf); */
vWriteDataHdmiGRL(GRL_WR_BKSV0, HDCP_BKSV_COUNT, bHDCPBuf);
}
u8 fgCompareRi(void)
{
u8 bTemp;
u8 bHDCPBuf[4];
MT8193_HDCP_FUNC();
// Read R0/ Ri from Transmitter
//fgI2CDataRead(HDMI_DEV_GRL, GRL_RI_0, HDCP_RI_COUNT, bHDCPBuf+HDCP_RI_COUNT);
bReadDataHdmiGRL(GRL_RI_0, HDCP_RI_COUNT, &bHDCPBuf[HDCP_RI_COUNT]);
// Read R0'/ Ri' from Receiver
fgDDCDataRead(RX_ID, RX_REG_RI, HDCP_RI_COUNT, bHDCPBuf);
// compare R0 and R0'
for(bTemp=0; bTemp<HDCP_RI_COUNT; bTemp++)
{
if(bHDCPBuf[bTemp] == bHDCPBuf[bTemp+HDCP_RI_COUNT])
{
continue;
}
else
{
break;
}
}
if(bTemp==HDCP_RI_COUNT)
{
return TRUE;
}
else
{
return FALSE;
}
}
