curry/hdcp/halHDCP.c

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////////////////////////////////////////////////////////////////////////////////////////////////////
// file   halHDCP.c
// @brief  HDCP HAL
// @author MStar Semiconductor,Inc.
////////////////////////////////////////////////////////////////////////////////////////////////////
/*********************************************************************/
/*                                                                                                                     */
/*                                                   Includes                                                      */
/*                                                                                                                     */
/*********************************************************************/
#include <stdio.h>
#include <string.h>
#include "MsCommon.h"
#include "MsTypes.h"
#include "regHDCP.h"
#include "halHDCP.h"
#include "drvCPU.h"

#ifndef HAL_HDCP_C
#define HAL_HDCP_C

/*********************************************************************/
/*                                                                                                                     */
/*                                                      Defines                                                    */
/*                                                                                                                     */
/*********************************************************************/
#define DEF_HDCP_TX_FUNC_EN     1

#if(defined(CONFIG_MLOG))
#include "ULog.h"

#define HalHDCPLogInfo(format, args...)       ULOGI("HDCP", format, ##args)
#define HalHDCPLogWarning(format, args...)    ULOGW("HDCP", format, ##args)
#define HalHDCPLogDebug(format, args...)      ULOGD("HDCP", format, ##args)
#define HalHDCPLogError(format, args...)      ULOGE("HDCP", format, ##args)
#define HalHDCPLogFatal(format, args...)      ULOGF("HDCP", format, ##args)

#else

#define HalHDCPLogInfo(format, args...)       printf(format, ##args)
#define HalHDCPLogWarning(format, args...)    printf(format, ##args)
#define HalHDCPLogDebug(format, args...)      printf(format, ##args)
#define HalHDCPLogError(format, args...)      printf(format, ##args)
#define HalHDCPLogFatal(format, args...)      printf(format, ##args)

#endif


#define DEF_SIZE_OF_KSXORLC128  16
#define DEF_SIZE_OF_RIV         8
#define DEF_SIZE_OF_HDCP1X_KEY  304

MS_VIRT _gHDCPRegBase = 0x00U;
MS_VIRT _gHDCPPMRegBase = 0x00U;

#define HDCPREG(bank, addr)     (*((volatile MS_U16 *)((_gHDCPRegBase + (bank << 1U)) + (addr << 2U))))
#define HDCPPMREG(bank, addr)   (*((volatile MS_U16 *)((_gHDCPPMRegBase + (bank << 1U)) + (addr << 2U))))

#define DEF_HDCP14_M0_SIZE          64U //bytes

/*********************************************************************/
/*                                                                                                                     */
/*                                                    Global                                                        */
/*                                                                                                                     */
/*********************************************************************/
MS_U8 gu8Hdcp1xKey[DEF_SIZE_OF_HDCP1X_KEY]= {0x00};
static MS_BOOL gbIsKmNewMode = FALSE;

/*********************************************************************/
/*                                                                                                                     */
/*                                                    Functions                                                    */
/*                                                                                                                     */
/*********************************************************************/
/*********************************************************************/
/*                                                                                                                     */
/*                                                    Internal                                                      */
/*                                                                                                                     */
/*********************************************************************/

MS_U16 MHalHdcpRegRead(MS_U32 bank, MS_U16 address)
{
    return HDCPREG(bank, address);
}

void MHalHdcpRegWrite(MS_U32 bank, MS_U16 address, MS_U16 reg_data)
{
    HDCPREG(bank, address) = reg_data;
}

void MHalHdcpRegMaskWrite(MS_U32 bank, MS_U16 address, MS_U16 reg_mask, MS_U16 reg_data)
{
    MS_U16 reg_value;

    reg_value = (HDCPREG(bank, address) & (~reg_mask)) | (reg_data & reg_mask);
    HDCPREG(bank, address) = reg_value;
}

MS_U16 MHalHdcpPMRegRead(MS_U32 bank, MS_U16 address)
{
    return HDCPPMREG(bank, address);
}

void MHalHdcpPMRegWrite(MS_U32 bank, MS_U16 address, MS_U16 reg_data)
{
    HDCPPMREG(bank, address) = reg_data;
}

void MHalHdcpPMRegMaskWrite(MS_U32 bank, MS_U16 address, MS_U16 reg_mask, MS_U16 reg_data)
{
    MS_U16 reg_value;

    reg_value = (HDCPPMREG(bank, address) & (~reg_mask)) | (reg_data & reg_mask);
    HDCPPMREG(bank, address) = reg_value;
}

/*********************************************************************/
/*                                                                                                                     */
/*                                                    External                                                     */
/*                                                                                                                     */
/*********************************************************************/
void MHal_HDCP_HDCP14TxInitHdcp(MS_U8 u8PortIdx)
{
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    //TBD: get bank offset by port index
    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0001, 0x8000, 0x8000); // Enable HDCP encryption
    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x001C, 0x0000); //[4]: 1: km new mode; 0: km old mode
}

void MHal_HDCP_HDCP14TxLoadKey(MS_U8* pu8KeyData, MS_BOOL bUseKmNewMode)
{
    gbIsKmNewMode = bUseKmNewMode;
    if (pu8KeyData != NULL)
        memcpy(gu8Hdcp1xKey, pu8KeyData, DEF_SIZE_OF_HDCP1X_KEY);
}

void MHal_HDCP_HDCP14TxSetAuthPass(MS_U8 u8PortIdx)
{
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    //TBD: get bank offset by port index
    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x000F, 0x000C);
}

void MHal_HDCP_HDCP14TxEnableENC_EN(MS_U8 u8PortIdx, MS_BOOL bEnable)
{
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    if (bEnable == TRUE)
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x0008, 0x0008);
    else
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x0008, 0x0000);
}

void MHal_HDCP_HDCP14TxProcessAn(MS_U8 u8PortIdx, MS_BOOL bUseInternalAn, MS_U8* pu8An)
{
    MS_U8 i = 0;
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    if (bUseInternalAn == TRUE)
    {
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0001, 0x0100, 0x0100);
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x0002, 0x0002);
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x0002, 0x0000);

        MsOS_DelayTaskUs(1);

        for ( i = 0; i < 4; i++ )
        {
            *(pu8An + 2*i) = MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, 0x0008 + i) & 0x00FF;
            *(pu8An + 2*i + 1) = (MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, 0x0008 + i) & 0xFF00) >> 8;
        }
    }
    else
    {
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0001, 0x0100, 0x0000);

        for ( i = 0; i < 4; i++ )
        {
            MHalHdcpRegWrite(DEF_HDCP14_TX_REG_BANK, 0x0008 + i, ((*(pu8An + 2*i + 1) << 8) | (*(pu8An + 2*i))));
        }
    }
}


void MHal_HDCP_HDCP14TxGetAKSV(MS_U8 u8PortIdx, MS_U8* pu8Aksv)
{
    MS_U8 u8ByteCnt = 0;

    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    for (u8ByteCnt = 0; u8ByteCnt < 5; u8ByteCnt++ )
    {
        *(pu8Aksv + u8ByteCnt) = gu8Hdcp1xKey[u8ByteCnt];
    }
}


MS_BOOL MHal_HDCP_HDCP14TxCompareRi(MS_U8 u8PortIdx, MS_U8* pu8SinkRi)
{
    MS_BOOL bRet = FALSE;
    MS_U16 u16SrcRi = 0x0000;
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    do
    {
        u16SrcRi = MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, 0x0000);

        if (u16SrcRi == *(MS_U16*)pu8SinkRi)
        {
            bRet = TRUE;
            break;
        }

        u16SrcRi = MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, 0x0000);

        if (u16SrcRi == *(MS_U16*)pu8SinkRi)
        {
            bRet = TRUE;
            break;
        }

    } while (FALSE);

    return bRet;
}


void MHal_HDCP_HDCP14TxConfigMode(MS_U8 u8PortIdx, MS_U8 u8Mode)
{
    //Kano has only 1 Tx port
    u8PortIdx &= 0x0F;

    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0001, 0x0E00, u8Mode << 8);
}


void MHal_HDCP_HDCP14TxGenerateCipher(MS_U8 u8PortIdx, MS_U8* pu8Bksv)
{
#define DEF_HDCP1X_KEY_OFFSET 8U

    MS_U8 u8Lm[7] = {0};
    MS_U8 u8ByteCnt = 0;
    MS_U8 u8BitCnt = 0;
    MS_U8 u8LmCnt = 0;
    MS_U8 u8CarryBit = 0;
    MS_U8 u8Seed = 0;
    MS_U8 u8Tmp = 0;
    MS_U16 u16Offset = 0;

    for (u8ByteCnt = 0; u8ByteCnt < 5; u8ByteCnt++)
    {
        for (u8BitCnt = 0; u8BitCnt < 8; u8BitCnt++)
        {
            if (*(pu8Bksv + u8ByteCnt) & (1 << u8BitCnt))
            {
                u8CarryBit = 0;
                u16Offset = (u8ByteCnt * 8 + u8BitCnt) * 7 + DEF_HDCP1X_KEY_OFFSET;

                for (u8LmCnt = 0; u8LmCnt < 7; u8LmCnt++)
                {
                    u8Seed = (u8LmCnt + gu8Hdcp1xKey[7]) % 7;
                    u8Tmp = gu8Hdcp1xKey[u16Offset + u8LmCnt] ^ gu8Hdcp1xKey[u8Seed];

                    u8Lm[u8LmCnt] = u8Lm[u8LmCnt] + u8Tmp + u8CarryBit;
                    if (((u8CarryBit == 0) && (u8Lm[u8LmCnt] >= u8Tmp)) || ((u8CarryBit == 1) && (u8Lm[u8LmCnt] > u8Tmp)))
                        u8CarryBit = 0;
                    else
                        u8CarryBit = 1;
                }
            }
        }
    }

    u8Tmp = gu8Hdcp1xKey[288];

    for (u8LmCnt = 0; u8LmCnt < 7; u8LmCnt++)
    {
        if (u8LmCnt < 6)
            u8Lm[u8LmCnt] = u8Lm[u8LmCnt] ^ u8Tmp;
        else
            u8Lm[u8LmCnt] = u8Lm[u8LmCnt] ^ (~u8Tmp);

        if (u8LmCnt % 2 != 0)
            MHalHdcpRegWrite(DEF_HDCP14_TX_REG_BANK, 0x0004 + (u8LmCnt/2), (u8Lm[u8LmCnt] << 8) | u8Lm[u8LmCnt - 1]);
    }

    MHalHdcpRegWrite(DEF_HDCP14_TX_REG_BANK, 0x0007, (u8Tmp << 8) | u8Lm[6]);

#undef DEF_HDCP1X_KEY_OFFSET

}

MS_BOOL MHal_HDCP_HDCP14TxProcessR0(MS_U8 u8PortIdx)
{
    MS_U8 u8Cnt = 0;

    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x000F, 0x0000);
    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x000F, 0x0001);
    MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, 0x0002, 0x000F, 0x0000);

    while (u8Cnt-- && !(MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, 0x0002) & 0x0100));

    return ((u8Cnt == 0) ? FALSE : TRUE);
}

void MHal_HDCP_HDCP14TxGetM0(MS_U8 u8PortIdx, MS_U8* pu8M0)
{
#define DEF_HDCP1X_M0_SIZE 8
    unsigned char u8DataCnt = 0;
    MS_U16 u16BKOffset = 0x00;
    MS_U16 u16RegVal = 0x00;

    u8PortIdx &= 0x0F;

    for ( u8DataCnt = 0; u8DataCnt < (DEF_HDCP1X_M0_SIZE>>1); u8DataCnt++ )
    {
        u16RegVal = MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK + u16BKOffset, 0x0C + u8DataCnt);
        *(pu8M0 + 2*u8DataCnt) = (MS_U8)(u16RegVal & 0x00FF);
        *(pu8M0 + 2*u8DataCnt + 1) = (MS_U8)((u16RegVal & 0xFF00)>>8);

    }
#undef DEF_HDCP1X_M0_SIZE
}

void MHal_HDCP_HDCP14GetM0(MS_U8 u8PortIdx, MS_U8 *pu8Data)
{
    MS_U8 cnt = 0x00;
    MS_U16 u16BKOffset = 0x00;

    u8PortIdx &= 0x0F;
    //only has 1 Tx port

    for ( cnt = 0; cnt < (DEF_HDCP14_M0_SIZE >> 4); cnt++ )
    {
        MS_U16 u16tmpData = 0x00;

        u16tmpData = MHalHdcpRegRead(DEF_HDCP14_RX_REG_BANK + u16BKOffset, 0x0E + cnt);

        *(pu8Data + cnt*2) = (MS_U8)(u16tmpData & 0x00FF);
        *(pu8Data + cnt*2 + 1) = (MS_U8)((u16tmpData & 0xFF00) >> 8);
    }
}

void MHal_HDCP_HDCP14FillBksv(MS_U8 *pu8BksvData)
{
    if(pu8BksvData != NULL)
    {

    }
}

void MHal_HDCP_HDCP14FillKey(MS_U8 *pu8KeyData)
{
    if(pu8KeyData == NULL)
    {

    }
}

void MHal_HDCP_SetBank(MS_U32 u32NonPmBankAddr, MS_U32 u32PmBankAddr)
{
    HalHDCPLogInfo("u32NonPmBankAddr = 0x%X, u32PmBankAddr = 0x%X\r\n", (unsigned int)u32NonPmBankAddr, (unsigned int)u32PmBankAddr);
    _gHDCPRegBase = u32NonPmBankAddr;
    _gHDCPPMRegBase = u32PmBankAddr;
}

void MHal_HDCP_HDCP2TxInit(MS_U8 u8PortIdx, MS_BOOL bEnable)
{
    MS_U16 u16BKOffset = 0x00;

    MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x11, bEnable ? 0x11 : 0x00); // bit 0: enable hdcp22; bit 4: enable EESS
    if (bEnable)
    {
        MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x02, 0x02); //reset hdcp22 FSM
        MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x02, 0x00);
    }
}

void MHal_HDCP_HDCP2TxEnableEncrypt(MS_U8 u8PortIdx, MS_BOOL bEnable)
{
    MS_U16 u16BKOffset = 0x00;

    MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x04, bEnable ? 0x04 : 0x00); //bit 2: authentication pass
    MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x08, bEnable ? 0x08 : 0x00); //bit 3: enable hdcp22 to issue encryption enable signal
}

void MHal_HDCP_HDCP2TxFillCipherKey(MS_U8 u8PortIdx, MS_U8 *pu8Riv, MS_U8 *pu8KsXORLC128)
{
    MS_U8 cnt = 0;
    MS_U16 u16BKOffset = 0x00;
    //MS_U16 u16RegOffset = 0x00;

    //only has 1 Tx port

    //Ks^LC128
    for ( cnt = 0; cnt < (DEF_SIZE_OF_KSXORLC128>>1); cnt++)
        MHalHdcpRegWrite(DEF_HDCP22_TX_KEY_REG_BANK + u16BKOffset, 0x60 + (DEF_SIZE_OF_KSXORLC128 >> 1) - 1 - cnt, *(pu8KsXORLC128 + cnt*2 + 1)|(*(pu8KsXORLC128 + cnt*2)<<8));

    //Riv
    for ( cnt = 0; cnt < (DEF_SIZE_OF_RIV>>1); cnt++)
        MHalHdcpRegWrite(DEF_HDCP22_TX_KEY_REG_BANK + u16BKOffset, 0x68 + (DEF_SIZE_OF_RIV >> 1) - 1 - cnt, *(pu8Riv + cnt*2 + 1)|(*(pu8Riv + cnt*2)<<8));

}

void MHal_HDCP_HDCP2TxGetCipherState(MS_U8 u8PortIdx, MS_U8 *pu8State)
{
    MS_U16 u16BKOffset = 0x00;
    //MS_U16 u16RegOffset = 0x00;

    //only has 1 Tx port

    *pu8State = MHalHdcpRegRead(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x00) & 0x0C;
}

void MHal_HDCP_HDCP2TxSetAuthPass(MS_U8 u8PortIdx, MS_BOOL bEnable)
{
    MS_U16 u16BKOffset = 0x00;

    MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK + u16BKOffset, 0x0000, 0x04, bEnable ? 0x04 : 0x00); //bit 2: authentication pass
}

void MHal_HDCP_HDCP2RxInit(MS_U8 u8PortIdx)
{
    return;
}

void MHal_HDCP_HDCP2RxProcessCipher(MS_U8 u8PortIdx, MS_U8* pu8Riv, MS_U8 *pu8ContentKey)
{
    return;
}

void MHal_HDCP_HDCP2RxSetSKEPass(MS_U8 u8PortIdx, MS_BOOL bEnable)
{
    return;
}

void MHal_HDCP_HDCP2RxFillCipherKey(MS_U8 u8PortIdx, MS_U8* pu8Riv, MS_U8 *pu8ContentKey)
{
    return;
}

void MHal_HDCP_HDCP2RxGetCipherState(MS_U8 u8PortIdx, MS_U8 *pu8State)
{
    *pu8State = 0;
}

MS_U32 MHal_HDCP_HDCP1TxEncrytionStatus(MS_U8 u8PortIdx, MS_U8 u8SetStatusFlag, MS_U32 u32SetStatus)
{
    MS_U32 u32GetStatus = 0;

    if(u8SetStatusFlag) // Set HDCP1 encrytion status
    {
        MHalHdcpRegMaskWrite(DEF_HDCP14_TX_REG_BANK, REG_HDCP14_TX_02_L, BIT(3), u32SetStatus? BIT(3): 0); //bit 3: enable hdcp14 to issue encryption enable signal
    }

    // Get HDCP1 encrytion status
    if(MHalHdcpRegRead(DEF_HDCP14_TX_REG_BANK, REG_HDCP14_TX_02_L) &BIT(3))
    {
        u32GetStatus = TRUE;
    }

    return u32GetStatus;
}

MS_U32 MHal_HDCP_HDCP2TxEncrytionStatus(MS_U8 u8PortIdx, MS_U8 u8SetStatusFlag, MS_U32 u32SetStatus)
{
    MS_U32 u32GetStatus = 0;

    if(u8SetStatusFlag) // Set HDCP2 encrytion status
    {
        MHalHdcpRegMaskWrite(DEF_HDCP22_TX_REG_BANK, REG_HDCP22_TX_00_L, BIT(3), u32SetStatus? BIT(3): 0); //bit 3: enable hdcp22 to issue encryption enable signal
    }

    // Get HDCP2 encrytion status
    if(MHalHdcpRegRead(DEF_HDCP22_TX_REG_BANK, REG_HDCP22_TX_00_L) &BIT(3))
    {
        u32GetStatus = TRUE;
    }

    return u32GetStatus;
}

MS_U32 MHal_HDCP_HDCPTxHDMIStatus(MS_U8 u8PortIdx, MS_U8 u8SetStatusFlag, MS_U32 u32SetStatus)
{
    MS_U32 u32GetStatus = 0;

    if(u8SetStatusFlag) // Set HDNI status
    {
        MHalHdcpRegMaskWrite(DEF_HDMITX_PHY_REG_BANK, REG_HDMITX_PHY_39_L, 0xFFFF, u32SetStatus? 0xF000: 0xFFFF);
        MHalHdcpRegMaskWrite(DEF_HDMITX_PHY_REG_BANK, REG_HDMITX_PHY_2E_L, 0xE800, u32SetStatus? 0xE800: 0x0000);
    }

    // Get HDNI status
    if((MHalHdcpRegRead(DEF_HDMITX_PHY_REG_BANK, REG_HDMITX_PHY_2E_L) &0xE800) == 0xE800)
    {
        u32GetStatus = TRUE;
    }

    return u32GetStatus;
}

#endif //#ifndef HAL_HDCP_C