kernel_samsung_a34x-permissive/drivers/gpu/drm/mediatek/ca/tlcDpHdcp.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2019 MediaTek Inc.
*/
#ifndef __TLCDPHDCP_H__
#define __TLCDPHDCP_H__
#include <linux/printk.h>
#include "tci.h"
#include "tlDPHdcpCMD.h"
#define TLCINFO(string, args...) pr_info("[TLC_HDCP]info: "string, ##args)
#define TLCERR(string, args...) pr_info("[TLC_HDCP]line:%d,err:%s:"string,\
__LINE__, __func__, ##args)
#define RET_ERROR_KEY_INVALID 10
#define RET_SUCCESS 0
/**
* hdcp version definitions
*/
#define HDCP_NONE 0x0 // No HDCP supported, no secure data path
#define HDCP_V1 0x1 // HDCP version 1.0
#define HDCP_V2 0x2 // HDCP version 2.0 Type 1
#define HDCP_V2_1 0x3 // HDCP version 2.1 Type 1
#define HDCP_V2_2 0x4 // HDCP version 2.2 Type 1
#define HDCP_V2_3 0x5 // HDCP version 2.3 Type 1
// Local display only(content required version use only)
#define HDCP_LOCAL_DISPLAY_ONLY 0xf
#define HDCP_NO_DIGITAL_OUTPUT 0xff // No digital output
#define HDCP_DEFAULT HDCP_NO_DIGITAL_OUTPUT // Default value
#define HDCP_VERSION_1X 1
#define HDCP_VERSION_2X 2
#ifdef __cplusplus
extern "C"
{
#endif
/*
*Description:
* A device connect and do some initializations.
*
*Input:
* version: HDCP version
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_addDevice(uint32_t version);
/*
*Description:
* Device disconnect.
*
*Parameters:
* N/A
*
*Returns:
* N/A
*/
void tee_removeDevice(void);
/*
*Description:
* Clearing paring info.
*
*Parameters:
* N/A
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_clearParing(void);
/*
*Description:
* Calculate Km base on Bksv and write it to HW.
*
*Input:
* Bksv[5] input
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_calculateLm(uint8_t *Bksv);
/*
*Description:
* Get Aksv from TEE.
*
*Output:
* Aksv[5]
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_getAksv(uint8_t *Aksv);
/*
*Description:
* Get R0 from HW and compare to Rx_r0.
*
*Parameters:
* r0[len] input
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_compareR0(uint8_t *r0, uint32_t len);
/*
*Description:
* Compute and compare V value.
*
*Input:
* cryptoParam[paramLen] params used to calculate
* rxV[20] V value from Rx
*
*Returns:
* RET_COMPARE_PASS verify pass
*/
int tee_hdcp1x_ComputeCompareV(uint8_t *cryptoParam, uint32_t paramLen,
uint8_t *rxV);
/*
*Description:
* Write An to HW.
*
*Input:
* an_code[8]
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_hdcp1x_setTxAn(uint8_t *an_code);
/*
*Description:
* Write RST to HW.
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_hdcp1x_softRst(void);
int tee_hdcp2_softRst(void);
/*
*Description:
* Set enable or disable to HW.
*
*Returns:
* TEEC_SUCCESS success
*/
int tee_hdcp_enableEncrypt(bool bEnable, uint8_t version);
/*
*Description:
* AKE cetificate verify.
*
*Input:
* certificate[522]: cert use to calculate
*output:
* bStored: whether be stored before
* out_m[16]
* out_ekm[16]
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_akeCertificate(uint8_t *certificate, bool *bStored,
uint8_t *out_m, uint8_t *out_ekm);
/*
*Description:
* Encrypt Km.
*
*Output:
* ekm[128]: encrypted km
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_encRsaesOaep(uint8_t *ekm);
/*
*Description:
* Calculate H prime and compare to rxH
*
*Input:
* rtx[8]
* rrx[8]
* rxCaps[3]
* txCaps[3]
* rxH[rxH_len]
*
*Returns:
* RET_COMPARE_PASS: compare pass
*/
int tee_akeHPrime(uint8_t *rtx, uint8_t *rrx, uint8_t *rxCaps, uint8_t *txCaps,
uint8_t *rxH, uint32_t rxH_len);
/*
*Description:
* Store paring info.
*
*Input:
* rx_ekm[16]
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_akeParing(uint8_t *rx_ekm);
/*
*Description:
* Calculate L prime and compare.
*
*Input:
* rn[8]
* rxL[len]
*
*Returns:
* RET_COMPARE_PASS compare pass
*/
int tee_lcLPrime(uint8_t *rn, uint8_t *rxL, uint32_t len);
/*
*Description:
* Encrypt ks
* Write contentkey and riv to hw
*
*Input:
* riv[8]
*Output:
* eks[16]
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_skeEncKs(uint8_t *riv, uint8_t *eks);
/*
*Description:
* Calculate and compare V prime for repeater.
*
*Input:
* cryptoParam[paramLen] params used to calculate
* rxV[16] V value from Rx
*Output:
* txV[16]
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_hdcp2_ComputeCompareV(uint8_t *cryptoParam, uint32_t paramLen,
uint8_t *rxV, uint8_t *txV);
/*
*Description:
* Calculate and compare M prime for repeater.
*
*Input:
* cryptoParam[paramLen] params used to calculate
* rxM[32] M value from Rx
*
*Returns:
* RET_COMPARE_PASS verify pass
*/
int tee_hdcp2_ComputeCompareM(uint8_t *cryptoParam, uint32_t paramLen,
uint8_t *rxM);
/*
*Description:
* Get key from Keyinstall.
*
*Input:
* keyID
*
*Returns:
* TEEC_SUCCESS success*
*/
int tee_loadHdcpKeyById(uint32_t version);
/*for test and need remove in furture*/
int tee_hdcp1x_setKey(uint8_t *key);
int tee_hdcp2_setKey(uint8_t *kpubdcp, uint8_t *lc128);
#ifdef __cplusplus
}
#endif
#endif //__TLCDPHDCP_H__