/* SPDX-License-Identifier: GPL-2.0 */ /* * Cadence MHDP8546 DP bridge driver. * * Copyright (C) 2020 Cadence Design Systems, Inc. * */ #ifndef CDNS_MHDP8546_HDCP_H #define CDNS_MHDP8546_HDCP_H #include "cdns-mhdp8546-core.h" #define HDCP_MAX_RECEIVERS 32 #define HDCP_RECEIVER_ID_SIZE_BYTES 5 #define HDCP_STATUS_SIZE 0x5 #define HDCP_PORT_STS_AUTH 0x1 #define HDCP_PORT_STS_LAST_ERR_SHIFT 0x5 #define HDCP_PORT_STS_LAST_ERR_MASK (0x0F << 5) #define GET_HDCP_PORT_STS_LAST_ERR(__sts__) \ (((__sts__) & HDCP_PORT_STS_LAST_ERR_MASK) >> \ HDCP_PORT_STS_LAST_ERR_SHIFT) #define HDCP_CONFIG_1_4 BIT(0) /* use HDCP 1.4 only */ #define HDCP_CONFIG_2_2 BIT(1) /* use HDCP 2.2 only */ /* use All HDCP versions */ #define HDCP_CONFIG_ALL (BIT(0) | BIT(1)) #define HDCP_CONFIG_NONE 0 enum { HDCP_GENERAL_SET_LC_128, HDCP_SET_SEED, }; enum { HDCP_TRAN_CONFIGURATION, HDCP2X_TX_SET_PUBLIC_KEY_PARAMS, HDCP2X_TX_SET_DEBUG_RANDOM_NUMBERS, HDCP2X_TX_RESPOND_KM, HDCP1_TX_SEND_KEYS, HDCP1_TX_SEND_RANDOM_AN, HDCP_TRAN_STATUS_CHANGE, HDCP2X_TX_IS_KM_STORED, HDCP2X_TX_STORE_KM, HDCP_TRAN_IS_REC_ID_VALID, HDCP_TRAN_RESPOND_RECEIVER_ID_VALID, HDCP_TRAN_TEST_KEYS, HDCP2X_TX_SET_KM_KEY_PARAMS, HDCP_NUM_OF_SUPPORTED_MESSAGES }; enum { HDCP_CONTENT_TYPE_0, HDCP_CONTENT_TYPE_1, }; #define DRM_HDCP_CHECK_PERIOD_MS (128 * 16) #define HDCP_PAIRING_R_ID 5 #define HDCP_PAIRING_M_LEN 16 #define HDCP_KM_LEN 16 #define HDCP_PAIRING_M_EKH 16 struct cdns_hdcp_pairing_data { u8 receiver_id[HDCP_PAIRING_R_ID]; u8 m[HDCP_PAIRING_M_LEN]; u8 km[HDCP_KM_LEN]; u8 ekh[HDCP_PAIRING_M_EKH]; }; enum { HDCP_TX_2, HDCP_TX_1, HDCP_TX_BOTH, }; #define DLP_MODULUS_N 384 #define DLP_E 3 struct cdns_hdcp_tx_public_key_param { u8 N[DLP_MODULUS_N]; u8 E[DLP_E]; }; int cdns_mhdp_hdcp_set_public_key_param(struct cdns_mhdp_device *mhdp, struct cdns_hdcp_tx_public_key_param *val); int cdns_mhdp_hdcp_set_lc(struct cdns_mhdp_device *mhdp, u8 *val); int cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type); int cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp); void cdns_mhdp_hdcp_init(struct cdns_mhdp_device *mhdp); #endif