14f73dc7aSAnshuman Gupta /* SPDX-License-Identifier: (GPL-2.0+) */ 24f73dc7aSAnshuman Gupta /* 34f73dc7aSAnshuman Gupta * Copyright © 2017-2019 Intel Corporation 44f73dc7aSAnshuman Gupta * 54f73dc7aSAnshuman Gupta * Authors: 64f73dc7aSAnshuman Gupta * Ramalingam C <ramalingam.c@intel.com> 74f73dc7aSAnshuman Gupta */ 84f73dc7aSAnshuman Gupta 94f73dc7aSAnshuman Gupta #ifndef _I915_HDCP_INTERFACE_H_ 104f73dc7aSAnshuman Gupta #define _I915_HDCP_INTERFACE_H_ 114f73dc7aSAnshuman Gupta 124f73dc7aSAnshuman Gupta #include <linux/mutex.h> 134f73dc7aSAnshuman Gupta #include <linux/device.h> 144f73dc7aSAnshuman Gupta #include <drm/display/drm_hdcp.h> 154f73dc7aSAnshuman Gupta 164f73dc7aSAnshuman Gupta /** 174f73dc7aSAnshuman Gupta * enum hdcp_port_type - HDCP port implementation type defined by ME/GSC FW 184f73dc7aSAnshuman Gupta * @HDCP_PORT_TYPE_INVALID: Invalid hdcp port type 194f73dc7aSAnshuman Gupta * @HDCP_PORT_TYPE_INTEGRATED: In-Host HDCP2.x port 204f73dc7aSAnshuman Gupta * @HDCP_PORT_TYPE_LSPCON: HDCP2.2 discrete wired Tx port with LSPCON 214f73dc7aSAnshuman Gupta * (HDMI 2.0) solution 224f73dc7aSAnshuman Gupta * @HDCP_PORT_TYPE_CPDP: HDCP2.2 discrete wired Tx port using the CPDP (DP 1.3) 234f73dc7aSAnshuman Gupta * solution 244f73dc7aSAnshuman Gupta */ 254f73dc7aSAnshuman Gupta enum hdcp_port_type { 264f73dc7aSAnshuman Gupta HDCP_PORT_TYPE_INVALID, 274f73dc7aSAnshuman Gupta HDCP_PORT_TYPE_INTEGRATED, 284f73dc7aSAnshuman Gupta HDCP_PORT_TYPE_LSPCON, 294f73dc7aSAnshuman Gupta HDCP_PORT_TYPE_CPDP 304f73dc7aSAnshuman Gupta }; 314f73dc7aSAnshuman Gupta 324f73dc7aSAnshuman Gupta /** 334f73dc7aSAnshuman Gupta * enum hdcp_wired_protocol - HDCP adaptation used on the port 344f73dc7aSAnshuman Gupta * @HDCP_PROTOCOL_INVALID: Invalid HDCP adaptation protocol 354f73dc7aSAnshuman Gupta * @HDCP_PROTOCOL_HDMI: HDMI adaptation of HDCP used on the port 364f73dc7aSAnshuman Gupta * @HDCP_PROTOCOL_DP: DP adaptation of HDCP used on the port 374f73dc7aSAnshuman Gupta */ 384f73dc7aSAnshuman Gupta enum hdcp_wired_protocol { 394f73dc7aSAnshuman Gupta HDCP_PROTOCOL_INVALID, 404f73dc7aSAnshuman Gupta HDCP_PROTOCOL_HDMI, 414f73dc7aSAnshuman Gupta HDCP_PROTOCOL_DP 424f73dc7aSAnshuman Gupta }; 434f73dc7aSAnshuman Gupta 444f73dc7aSAnshuman Gupta enum hdcp_ddi { 454f73dc7aSAnshuman Gupta HDCP_DDI_INVALID_PORT = 0x0, 464f73dc7aSAnshuman Gupta 474f73dc7aSAnshuman Gupta HDCP_DDI_B = 1, 484f73dc7aSAnshuman Gupta HDCP_DDI_C, 494f73dc7aSAnshuman Gupta HDCP_DDI_D, 504f73dc7aSAnshuman Gupta HDCP_DDI_E, 514f73dc7aSAnshuman Gupta HDCP_DDI_F, 524f73dc7aSAnshuman Gupta HDCP_DDI_A = 7, 534f73dc7aSAnshuman Gupta HDCP_DDI_RANGE_END = HDCP_DDI_A, 544f73dc7aSAnshuman Gupta }; 554f73dc7aSAnshuman Gupta 564f73dc7aSAnshuman Gupta /** 574f73dc7aSAnshuman Gupta * enum hdcp_tc - ME/GSC Firmware defined index for transcoders 584f73dc7aSAnshuman Gupta * @HDCP_INVALID_TRANSCODER: Index for Invalid transcoder 594f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_EDP: Index for EDP Transcoder 604f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_DSI0: Index for DSI0 Transcoder 614f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_DSI1: Index for DSI1 Transcoder 624f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_A: Index for Transcoder A 634f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_B: Index for Transcoder B 644f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_C: Index for Transcoder C 654f73dc7aSAnshuman Gupta * @HDCP_TRANSCODER_D: Index for Transcoder D 664f73dc7aSAnshuman Gupta */ 674f73dc7aSAnshuman Gupta enum hdcp_transcoder { 684f73dc7aSAnshuman Gupta HDCP_INVALID_TRANSCODER = 0x00, 694f73dc7aSAnshuman Gupta HDCP_TRANSCODER_EDP, 704f73dc7aSAnshuman Gupta HDCP_TRANSCODER_DSI0, 714f73dc7aSAnshuman Gupta HDCP_TRANSCODER_DSI1, 724f73dc7aSAnshuman Gupta HDCP_TRANSCODER_A = 0x10, 734f73dc7aSAnshuman Gupta HDCP_TRANSCODER_B, 744f73dc7aSAnshuman Gupta HDCP_TRANSCODER_C, 754f73dc7aSAnshuman Gupta HDCP_TRANSCODER_D 764f73dc7aSAnshuman Gupta }; 774f73dc7aSAnshuman Gupta 784f73dc7aSAnshuman Gupta /** 794f73dc7aSAnshuman Gupta * struct hdcp_port_data - intel specific HDCP port data 804f73dc7aSAnshuman Gupta * @hdcp_ddi: ddi index as per ME/GSC FW 814f73dc7aSAnshuman Gupta * @hdcp_transcoder: transcoder index as per ME/GSC FW 824f73dc7aSAnshuman Gupta * @port_type: HDCP port type as per ME/GSC FW classification 834f73dc7aSAnshuman Gupta * @protocol: HDCP adaptation as per ME/GSC FW 844f73dc7aSAnshuman Gupta * @k: No of streams transmitted on a port. Only on DP MST this is != 1 854f73dc7aSAnshuman Gupta * @seq_num_m: Count of RepeaterAuth_Stream_Manage msg propagated. 864f73dc7aSAnshuman Gupta * Initialized to 0 on AKE_INIT. Incremented after every successful 874f73dc7aSAnshuman Gupta * transmission of RepeaterAuth_Stream_Manage message. When it rolls 884f73dc7aSAnshuman Gupta * over re-Auth has to be triggered. 894f73dc7aSAnshuman Gupta * @streams: struct hdcp2_streamid_type[k]. Defines the type and id for the 904f73dc7aSAnshuman Gupta * streams 914f73dc7aSAnshuman Gupta */ 924f73dc7aSAnshuman Gupta struct hdcp_port_data { 934f73dc7aSAnshuman Gupta enum hdcp_ddi hdcp_ddi; 944f73dc7aSAnshuman Gupta enum hdcp_transcoder hdcp_transcoder; 954f73dc7aSAnshuman Gupta u8 port_type; 964f73dc7aSAnshuman Gupta u8 protocol; 974f73dc7aSAnshuman Gupta u16 k; 984f73dc7aSAnshuman Gupta u32 seq_num_m; 994f73dc7aSAnshuman Gupta struct hdcp2_streamid_type *streams; 1004f73dc7aSAnshuman Gupta }; 1014f73dc7aSAnshuman Gupta 1024f73dc7aSAnshuman Gupta /** 1034f73dc7aSAnshuman Gupta * struct i915_hdcp_ops- ops for HDCP2.2 services. 1044f73dc7aSAnshuman Gupta * @owner: Module providing the ops 1054f73dc7aSAnshuman Gupta * @initiate_hdcp2_session: Initiate a Wired HDCP2.2 Tx Session. 1064f73dc7aSAnshuman Gupta * And Prepare AKE_Init. 1074f73dc7aSAnshuman Gupta * @verify_receiver_cert_prepare_km: Verify the Receiver Certificate 1084f73dc7aSAnshuman Gupta * AKE_Send_Cert and prepare 1094f73dc7aSAnshuman Gupta AKE_Stored_Km/AKE_No_Stored_Km 1104f73dc7aSAnshuman Gupta * @verify_hprime: Verify AKE_Send_H_prime 1114f73dc7aSAnshuman Gupta * @store_pairing_info: Store pairing info received 1124f73dc7aSAnshuman Gupta * @initiate_locality_check: Prepare LC_Init 1134f73dc7aSAnshuman Gupta * @verify_lprime: Verify lprime 1144f73dc7aSAnshuman Gupta * @get_session_key: Prepare SKE_Send_Eks 1154f73dc7aSAnshuman Gupta * @repeater_check_flow_prepare_ack: Validate the Downstream topology 1164f73dc7aSAnshuman Gupta * and prepare rep_ack 1174f73dc7aSAnshuman Gupta * @verify_mprime: Verify mprime 1184f73dc7aSAnshuman Gupta * @enable_hdcp_authentication: Mark a port as authenticated. 1194f73dc7aSAnshuman Gupta * @close_hdcp_session: Close the Wired HDCP Tx session per port. 1204f73dc7aSAnshuman Gupta * This also disables the authenticated state of the port. 1214f73dc7aSAnshuman Gupta */ 1224f73dc7aSAnshuman Gupta struct i915_hdcp_ops { 1234f73dc7aSAnshuman Gupta /** 1244f73dc7aSAnshuman Gupta * @owner: hdcp module 1254f73dc7aSAnshuman Gupta */ 1264f73dc7aSAnshuman Gupta struct module *owner; 1274f73dc7aSAnshuman Gupta 1284f73dc7aSAnshuman Gupta int (*initiate_hdcp2_session)(struct device *dev, 1294f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1304f73dc7aSAnshuman Gupta struct hdcp2_ake_init *ake_data); 1314f73dc7aSAnshuman Gupta int (*verify_receiver_cert_prepare_km)(struct device *dev, 1324f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1334f73dc7aSAnshuman Gupta struct hdcp2_ake_send_cert 1344f73dc7aSAnshuman Gupta *rx_cert, 1354f73dc7aSAnshuman Gupta bool *km_stored, 1364f73dc7aSAnshuman Gupta struct hdcp2_ake_no_stored_km 1374f73dc7aSAnshuman Gupta *ek_pub_km, 1384f73dc7aSAnshuman Gupta size_t *msg_sz); 1394f73dc7aSAnshuman Gupta int (*verify_hprime)(struct device *dev, 1404f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1414f73dc7aSAnshuman Gupta struct hdcp2_ake_send_hprime *rx_hprime); 1424f73dc7aSAnshuman Gupta int (*store_pairing_info)(struct device *dev, 1434f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1444f73dc7aSAnshuman Gupta struct hdcp2_ake_send_pairing_info 1454f73dc7aSAnshuman Gupta *pairing_info); 1464f73dc7aSAnshuman Gupta int (*initiate_locality_check)(struct device *dev, 1474f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1484f73dc7aSAnshuman Gupta struct hdcp2_lc_init *lc_init_data); 1494f73dc7aSAnshuman Gupta int (*verify_lprime)(struct device *dev, 1504f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1514f73dc7aSAnshuman Gupta struct hdcp2_lc_send_lprime *rx_lprime); 1524f73dc7aSAnshuman Gupta int (*get_session_key)(struct device *dev, 1534f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1544f73dc7aSAnshuman Gupta struct hdcp2_ske_send_eks *ske_data); 1554f73dc7aSAnshuman Gupta int (*repeater_check_flow_prepare_ack)(struct device *dev, 1564f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1574f73dc7aSAnshuman Gupta struct hdcp2_rep_send_receiverid_list 1584f73dc7aSAnshuman Gupta *rep_topology, 1594f73dc7aSAnshuman Gupta struct hdcp2_rep_send_ack 1604f73dc7aSAnshuman Gupta *rep_send_ack); 1614f73dc7aSAnshuman Gupta int (*verify_mprime)(struct device *dev, 1624f73dc7aSAnshuman Gupta struct hdcp_port_data *data, 1634f73dc7aSAnshuman Gupta struct hdcp2_rep_stream_ready *stream_ready); 1644f73dc7aSAnshuman Gupta int (*enable_hdcp_authentication)(struct device *dev, 1654f73dc7aSAnshuman Gupta struct hdcp_port_data *data); 1664f73dc7aSAnshuman Gupta int (*close_hdcp_session)(struct device *dev, 1674f73dc7aSAnshuman Gupta struct hdcp_port_data *data); 1684f73dc7aSAnshuman Gupta }; 1694f73dc7aSAnshuman Gupta 1704f73dc7aSAnshuman Gupta /** 1714f73dc7aSAnshuman Gupta * struct i915_hdcp_master - Used for communication between i915 1724f73dc7aSAnshuman Gupta * and hdcp drivers for the HDCP2.2 services 1734f73dc7aSAnshuman Gupta * @hdcp_dev: device that provide the HDCP2.2 service from MEI Bus. 1744f73dc7aSAnshuman Gupta * @hdcp_ops: Ops implemented by hdcp driver or intel_hdcp_gsc , used by i915 driver. 1754f73dc7aSAnshuman Gupta */ 1764f73dc7aSAnshuman Gupta struct i915_hdcp_master { 1774f73dc7aSAnshuman Gupta struct device *hdcp_dev; 1784f73dc7aSAnshuman Gupta const struct i915_hdcp_ops *ops; 1794f73dc7aSAnshuman Gupta 1804f73dc7aSAnshuman Gupta /* To protect the above members. */ 1814f73dc7aSAnshuman Gupta struct mutex mutex; 1824f73dc7aSAnshuman Gupta }; 1834f73dc7aSAnshuman Gupta 184*33898377SSuraj Kandpal /* fw_hdcp_status: Enumeration of all HDCP Status Codes */ 185*33898377SSuraj Kandpal enum fw_hdcp_status { 186*33898377SSuraj Kandpal FW_HDCP_STATUS_SUCCESS = 0x0000, 187*33898377SSuraj Kandpal 188*33898377SSuraj Kandpal /* WiDi Generic Status Codes */ 189*33898377SSuraj Kandpal FW_HDCP_STATUS_INTERNAL_ERROR = 0x1000, 190*33898377SSuraj Kandpal FW_HDCP_STATUS_UNKNOWN_ERROR = 0x1001, 191*33898377SSuraj Kandpal FW_HDCP_STATUS_INCORRECT_API_VERSION = 0x1002, 192*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_FUNCTION = 0x1003, 193*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_BUFFER_LENGTH = 0x1004, 194*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_PARAMS = 0x1005, 195*33898377SSuraj Kandpal FW_HDCP_STATUS_AUTHENTICATION_FAILED = 0x1006, 196*33898377SSuraj Kandpal 197*33898377SSuraj Kandpal /* WiDi Status Codes */ 198*33898377SSuraj Kandpal FW_HDCP_INVALID_SESSION_STATE = 0x6000, 199*33898377SSuraj Kandpal FW_HDCP_SRM_FRAGMENT_UNEXPECTED = 0x6001, 200*33898377SSuraj Kandpal FW_HDCP_SRM_INVALID_LENGTH = 0x6002, 201*33898377SSuraj Kandpal FW_HDCP_SRM_FRAGMENT_OFFSET_INVALID = 0x6003, 202*33898377SSuraj Kandpal FW_HDCP_SRM_VERIFICATION_FAILED = 0x6004, 203*33898377SSuraj Kandpal FW_HDCP_SRM_VERSION_TOO_OLD = 0x6005, 204*33898377SSuraj Kandpal FW_HDCP_RX_CERT_VERIFICATION_FAILED = 0x6006, 205*33898377SSuraj Kandpal FW_HDCP_RX_REVOKED = 0x6007, 206*33898377SSuraj Kandpal FW_HDCP_H_VERIFICATION_FAILED = 0x6008, 207*33898377SSuraj Kandpal FW_HDCP_REPEATER_CHECK_UNEXPECTED = 0x6009, 208*33898377SSuraj Kandpal FW_HDCP_TOPOLOGY_MAX_EXCEEDED = 0x600A, 209*33898377SSuraj Kandpal FW_HDCP_V_VERIFICATION_FAILED = 0x600B, 210*33898377SSuraj Kandpal FW_HDCP_L_VERIFICATION_FAILED = 0x600C, 211*33898377SSuraj Kandpal FW_HDCP_STREAM_KEY_ALLOC_FAILED = 0x600D, 212*33898377SSuraj Kandpal FW_HDCP_BASE_KEY_RESET_FAILED = 0x600E, 213*33898377SSuraj Kandpal FW_HDCP_NONCE_GENERATION_FAILED = 0x600F, 214*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_E_KEY_STATE = 0x6010, 215*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_CS_ICV = 0x6011, 216*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_KB_KEY_STATE = 0x6012, 217*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_PAVP_MODE_ICV = 0x6013, 218*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_PAVP_MODE = 0x6014, 219*33898377SSuraj Kandpal FW_HDCP_STATUS_LC_MAX_ATTEMPTS = 0x6015, 220*33898377SSuraj Kandpal 221*33898377SSuraj Kandpal /* New status for HDCP 2.1 */ 222*33898377SSuraj Kandpal FW_HDCP_STATUS_MISMATCH_IN_M = 0x6016, 223*33898377SSuraj Kandpal 224*33898377SSuraj Kandpal /* New status code for HDCP 2.2 Rx */ 225*33898377SSuraj Kandpal FW_HDCP_STATUS_RX_PROV_NOT_ALLOWED = 0x6017, 226*33898377SSuraj Kandpal FW_HDCP_STATUS_RX_PROV_WRONG_SUBJECT = 0x6018, 227*33898377SSuraj Kandpal FW_HDCP_RX_NEEDS_PROVISIONING = 0x6019, 228*33898377SSuraj Kandpal FW_HDCP_BKSV_ICV_AUTH_FAILED = 0x6020, 229*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_STREAM_ID = 0x6021, 230*33898377SSuraj Kandpal FW_HDCP_STATUS_CHAIN_NOT_INITIALIZED = 0x6022, 231*33898377SSuraj Kandpal FW_HDCP_FAIL_NOT_EXPECTED = 0x6023, 232*33898377SSuraj Kandpal FW_HDCP_FAIL_HDCP_OFF = 0x6024, 233*33898377SSuraj Kandpal FW_HDCP_FAIL_INVALID_PAVP_MEMORY_MODE = 0x6025, 234*33898377SSuraj Kandpal FW_HDCP_FAIL_AES_ECB_FAILURE = 0x6026, 235*33898377SSuraj Kandpal FW_HDCP_FEATURE_NOT_SUPPORTED = 0x6027, 236*33898377SSuraj Kandpal FW_HDCP_DMA_READ_ERROR = 0x6028, 237*33898377SSuraj Kandpal FW_HDCP_DMA_WRITE_ERROR = 0x6029, 238*33898377SSuraj Kandpal FW_HDCP_FAIL_INVALID_PACKET_SIZE = 0x6030, 239*33898377SSuraj Kandpal FW_HDCP_H264_PARSING_ERROR = 0x6031, 240*33898377SSuraj Kandpal FW_HDCP_HDCP2_ERRATA_VIDEO_VIOLATION = 0x6032, 241*33898377SSuraj Kandpal FW_HDCP_HDCP2_ERRATA_AUDIO_VIOLATION = 0x6033, 242*33898377SSuraj Kandpal FW_HDCP_TX_ACTIVE_ERROR = 0x6034, 243*33898377SSuraj Kandpal FW_HDCP_MODE_CHANGE_ERROR = 0x6035, 244*33898377SSuraj Kandpal FW_HDCP_STREAM_TYPE_ERROR = 0x6036, 245*33898377SSuraj Kandpal FW_HDCP_STREAM_MANAGE_NOT_POSSIBLE = 0x6037, 246*33898377SSuraj Kandpal 247*33898377SSuraj Kandpal FW_HDCP_STATUS_PORT_INVALID_COMMAND = 0x6038, 248*33898377SSuraj Kandpal FW_HDCP_STATUS_UNSUPPORTED_PROTOCOL = 0x6039, 249*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_PORT_INDEX = 0x603a, 250*33898377SSuraj Kandpal FW_HDCP_STATUS_TX_AUTH_NEEDED = 0x603b, 251*33898377SSuraj Kandpal FW_HDCP_STATUS_NOT_INTEGRATED_PORT = 0x603c, 252*33898377SSuraj Kandpal FW_HDCP_STATUS_SESSION_MAX_REACHED = 0x603d, 253*33898377SSuraj Kandpal 254*33898377SSuraj Kandpal /* hdcp capable bit is not set in rx_caps(error is unique to DP) */ 255*33898377SSuraj Kandpal FW_HDCP_STATUS_NOT_HDCP_CAPABLE = 0x6041, 256*33898377SSuraj Kandpal 257*33898377SSuraj Kandpal FW_HDCP_STATUS_INVALID_STREAM_COUNT = 0x6042, 258*33898377SSuraj Kandpal }; 259*33898377SSuraj Kandpal 260*33898377SSuraj Kandpal #define HDCP_API_VERSION 0x00010000 261*33898377SSuraj Kandpal 262*33898377SSuraj Kandpal #define HDCP_M_LEN 16 263*33898377SSuraj Kandpal #define HDCP_KH_LEN 16 264*33898377SSuraj Kandpal 265*33898377SSuraj Kandpal /* Payload Buffer size(Excluding Header) for CMDs and corresponding response */ 266*33898377SSuraj Kandpal /* Wired_Tx_AKE */ 267*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN (4 + 1) 268*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_OUT (4 + 8 + 3) 269*33898377SSuraj Kandpal 270*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN (4 + 522 + 8 + 3) 271*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MIN_OUT (4 + 1 + 3 + 16 + 16) 272*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MAX_OUT (4 + 1 + 3 + 128) 273*33898377SSuraj Kandpal 274*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN (4 + 32) 275*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_OUT (4) 276*33898377SSuraj Kandpal 277*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN (4 + 16) 278*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_OUT (4) 279*33898377SSuraj Kandpal 280*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN (4) 281*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_CLOSE_SESSION_OUT (4) 282*33898377SSuraj Kandpal 283*33898377SSuraj Kandpal /* Wired_Tx_LC */ 284*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN (4) 285*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_OUT (4 + 8) 286*33898377SSuraj Kandpal 287*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN (4 + 32) 288*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_OUT (4) 289*33898377SSuraj Kandpal 290*33898377SSuraj Kandpal /* Wired_Tx_SKE */ 291*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN (4) 292*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_OUT (4 + 16 + 8) 293*33898377SSuraj Kandpal 294*33898377SSuraj Kandpal /* Wired_Tx_SKE */ 295*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN (4 + 1) 296*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_ENABLE_AUTH_OUT (4) 297*33898377SSuraj Kandpal 298*33898377SSuraj Kandpal /* Wired_Tx_Repeater */ 299*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN (4 + 2 + 3 + 16 + 155) 300*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_OUT (4 + 1 + 16) 301*33898377SSuraj Kandpal 302*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN (4 + 3 + \ 303*33898377SSuraj Kandpal 32 + 2 + 2) 304*33898377SSuraj Kandpal 305*33898377SSuraj Kandpal #define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_OUT (4) 306*33898377SSuraj Kandpal 307*33898377SSuraj Kandpal /* hdcp_command_id: Enumeration of all WIRED HDCP Command IDs */ 308*33898377SSuraj Kandpal enum hdcp_command_id { 309*33898377SSuraj Kandpal _WIDI_COMMAND_BASE = 0x00030000, 310*33898377SSuraj Kandpal WIDI_INITIATE_HDCP2_SESSION = _WIDI_COMMAND_BASE, 311*33898377SSuraj Kandpal HDCP_GET_SRM_STATUS, 312*33898377SSuraj Kandpal HDCP_SEND_SRM_FRAGMENT, 313*33898377SSuraj Kandpal 314*33898377SSuraj Kandpal /* The wired HDCP Tx commands */ 315*33898377SSuraj Kandpal _WIRED_COMMAND_BASE = 0x00031000, 316*33898377SSuraj Kandpal WIRED_INITIATE_HDCP2_SESSION = _WIRED_COMMAND_BASE, 317*33898377SSuraj Kandpal WIRED_VERIFY_RECEIVER_CERT, 318*33898377SSuraj Kandpal WIRED_AKE_SEND_HPRIME, 319*33898377SSuraj Kandpal WIRED_AKE_SEND_PAIRING_INFO, 320*33898377SSuraj Kandpal WIRED_INIT_LOCALITY_CHECK, 321*33898377SSuraj Kandpal WIRED_VALIDATE_LOCALITY, 322*33898377SSuraj Kandpal WIRED_GET_SESSION_KEY, 323*33898377SSuraj Kandpal WIRED_ENABLE_AUTH, 324*33898377SSuraj Kandpal WIRED_VERIFY_REPEATER, 325*33898377SSuraj Kandpal WIRED_REPEATER_AUTH_STREAM_REQ, 326*33898377SSuraj Kandpal WIRED_CLOSE_SESSION, 327*33898377SSuraj Kandpal 328*33898377SSuraj Kandpal _WIRED_COMMANDS_COUNT, 329*33898377SSuraj Kandpal }; 330*33898377SSuraj Kandpal 331*33898377SSuraj Kandpal union encrypted_buff { 332*33898377SSuraj Kandpal u8 e_kpub_km[HDCP_2_2_E_KPUB_KM_LEN]; 333*33898377SSuraj Kandpal u8 e_kh_km_m[HDCP_2_2_E_KH_KM_M_LEN]; 334*33898377SSuraj Kandpal struct { 335*33898377SSuraj Kandpal u8 e_kh_km[HDCP_KH_LEN]; 336*33898377SSuraj Kandpal u8 m[HDCP_M_LEN]; 337*33898377SSuraj Kandpal } __packed; 338*33898377SSuraj Kandpal }; 339*33898377SSuraj Kandpal 340*33898377SSuraj Kandpal /* HDCP HECI message header. All header values are little endian. */ 341*33898377SSuraj Kandpal struct hdcp_cmd_header { 342*33898377SSuraj Kandpal u32 api_version; 343*33898377SSuraj Kandpal u32 command_id; 344*33898377SSuraj Kandpal enum fw_hdcp_status status; 345*33898377SSuraj Kandpal /* Length of the HECI message (excluding the header) */ 346*33898377SSuraj Kandpal u32 buffer_len; 347*33898377SSuraj Kandpal } __packed; 348*33898377SSuraj Kandpal 349*33898377SSuraj Kandpal /* Empty command request or response. No data follows the header. */ 350*33898377SSuraj Kandpal struct hdcp_cmd_no_data { 351*33898377SSuraj Kandpal struct hdcp_cmd_header header; 352*33898377SSuraj Kandpal } __packed; 353*33898377SSuraj Kandpal 354*33898377SSuraj Kandpal /* Uniquely identifies the hdcp port being addressed for a given command. */ 355*33898377SSuraj Kandpal struct hdcp_port_id { 356*33898377SSuraj Kandpal u8 integrated_port_type; 357*33898377SSuraj Kandpal /* physical_port is used until Gen11.5. Must be zero for Gen11.5+ */ 358*33898377SSuraj Kandpal u8 physical_port; 359*33898377SSuraj Kandpal /* attached_transcoder is for Gen11.5+. Set to zero for <Gen11.5 */ 360*33898377SSuraj Kandpal u8 attached_transcoder; 361*33898377SSuraj Kandpal u8 reserved; 362*33898377SSuraj Kandpal } __packed; 363*33898377SSuraj Kandpal 364*33898377SSuraj Kandpal /* 365*33898377SSuraj Kandpal * Data structures for integrated wired HDCP2 Tx in 366*33898377SSuraj Kandpal * support of the AKE protocol 367*33898377SSuraj Kandpal */ 368*33898377SSuraj Kandpal /* HECI struct for integrated wired HDCP Tx session initiation. */ 369*33898377SSuraj Kandpal struct wired_cmd_initiate_hdcp2_session_in { 370*33898377SSuraj Kandpal struct hdcp_cmd_header header; 371*33898377SSuraj Kandpal struct hdcp_port_id port; 372*33898377SSuraj Kandpal u8 protocol; /* for HDMI vs DP */ 373*33898377SSuraj Kandpal } __packed; 374*33898377SSuraj Kandpal 375*33898377SSuraj Kandpal struct wired_cmd_initiate_hdcp2_session_out { 376*33898377SSuraj Kandpal struct hdcp_cmd_header header; 377*33898377SSuraj Kandpal struct hdcp_port_id port; 378*33898377SSuraj Kandpal u8 r_tx[HDCP_2_2_RTX_LEN]; 379*33898377SSuraj Kandpal struct hdcp2_tx_caps tx_caps; 380*33898377SSuraj Kandpal } __packed; 381*33898377SSuraj Kandpal 382*33898377SSuraj Kandpal /* HECI struct for ending an integrated wired HDCP Tx session. */ 383*33898377SSuraj Kandpal struct wired_cmd_close_session_in { 384*33898377SSuraj Kandpal struct hdcp_cmd_header header; 385*33898377SSuraj Kandpal struct hdcp_port_id port; 386*33898377SSuraj Kandpal } __packed; 387*33898377SSuraj Kandpal 388*33898377SSuraj Kandpal struct wired_cmd_close_session_out { 389*33898377SSuraj Kandpal struct hdcp_cmd_header header; 390*33898377SSuraj Kandpal struct hdcp_port_id port; 391*33898377SSuraj Kandpal } __packed; 392*33898377SSuraj Kandpal 393*33898377SSuraj Kandpal /* HECI struct for integrated wired HDCP Tx Rx Cert verification. */ 394*33898377SSuraj Kandpal struct wired_cmd_verify_receiver_cert_in { 395*33898377SSuraj Kandpal struct hdcp_cmd_header header; 396*33898377SSuraj Kandpal struct hdcp_port_id port; 397*33898377SSuraj Kandpal struct hdcp2_cert_rx cert_rx; 398*33898377SSuraj Kandpal u8 r_rx[HDCP_2_2_RRX_LEN]; 399*33898377SSuraj Kandpal u8 rx_caps[HDCP_2_2_RXCAPS_LEN]; 400*33898377SSuraj Kandpal } __packed; 401*33898377SSuraj Kandpal 402*33898377SSuraj Kandpal struct wired_cmd_verify_receiver_cert_out { 403*33898377SSuraj Kandpal struct hdcp_cmd_header header; 404*33898377SSuraj Kandpal struct hdcp_port_id port; 405*33898377SSuraj Kandpal u8 km_stored; 406*33898377SSuraj Kandpal u8 reserved[3]; 407*33898377SSuraj Kandpal union encrypted_buff ekm_buff; 408*33898377SSuraj Kandpal } __packed; 409*33898377SSuraj Kandpal 410*33898377SSuraj Kandpal /* HECI struct for verification of Rx's Hprime in a HDCP Tx session */ 411*33898377SSuraj Kandpal struct wired_cmd_ake_send_hprime_in { 412*33898377SSuraj Kandpal struct hdcp_cmd_header header; 413*33898377SSuraj Kandpal struct hdcp_port_id port; 414*33898377SSuraj Kandpal u8 h_prime[HDCP_2_2_H_PRIME_LEN]; 415*33898377SSuraj Kandpal } __packed; 416*33898377SSuraj Kandpal 417*33898377SSuraj Kandpal struct wired_cmd_ake_send_hprime_out { 418*33898377SSuraj Kandpal struct hdcp_cmd_header header; 419*33898377SSuraj Kandpal struct hdcp_port_id port; 420*33898377SSuraj Kandpal } __packed; 421*33898377SSuraj Kandpal 422*33898377SSuraj Kandpal /* 423*33898377SSuraj Kandpal * HECI struct for sending in AKE pairing data generated by the Rx in an 424*33898377SSuraj Kandpal * integrated wired HDCP Tx session. 425*33898377SSuraj Kandpal */ 426*33898377SSuraj Kandpal struct wired_cmd_ake_send_pairing_info_in { 427*33898377SSuraj Kandpal struct hdcp_cmd_header header; 428*33898377SSuraj Kandpal struct hdcp_port_id port; 429*33898377SSuraj Kandpal u8 e_kh_km[HDCP_2_2_E_KH_KM_LEN]; 430*33898377SSuraj Kandpal } __packed; 431*33898377SSuraj Kandpal 432*33898377SSuraj Kandpal struct wired_cmd_ake_send_pairing_info_out { 433*33898377SSuraj Kandpal struct hdcp_cmd_header header; 434*33898377SSuraj Kandpal struct hdcp_port_id port; 435*33898377SSuraj Kandpal } __packed; 436*33898377SSuraj Kandpal 437*33898377SSuraj Kandpal /* Data structures for integrated wired HDCP2 Tx in support of the LC protocol*/ 438*33898377SSuraj Kandpal /* 439*33898377SSuraj Kandpal * HECI struct for initiating locality check with an 440*33898377SSuraj Kandpal * integrated wired HDCP Tx session. 441*33898377SSuraj Kandpal */ 442*33898377SSuraj Kandpal struct wired_cmd_init_locality_check_in { 443*33898377SSuraj Kandpal struct hdcp_cmd_header header; 444*33898377SSuraj Kandpal struct hdcp_port_id port; 445*33898377SSuraj Kandpal } __packed; 446*33898377SSuraj Kandpal 447*33898377SSuraj Kandpal struct wired_cmd_init_locality_check_out { 448*33898377SSuraj Kandpal struct hdcp_cmd_header header; 449*33898377SSuraj Kandpal struct hdcp_port_id port; 450*33898377SSuraj Kandpal u8 r_n[HDCP_2_2_RN_LEN]; 451*33898377SSuraj Kandpal } __packed; 452*33898377SSuraj Kandpal 453*33898377SSuraj Kandpal /* 454*33898377SSuraj Kandpal * HECI struct for validating an Rx's LPrime value in an 455*33898377SSuraj Kandpal * integrated wired HDCP Tx session. 456*33898377SSuraj Kandpal */ 457*33898377SSuraj Kandpal struct wired_cmd_validate_locality_in { 458*33898377SSuraj Kandpal struct hdcp_cmd_header header; 459*33898377SSuraj Kandpal struct hdcp_port_id port; 460*33898377SSuraj Kandpal u8 l_prime[HDCP_2_2_L_PRIME_LEN]; 461*33898377SSuraj Kandpal } __packed; 462*33898377SSuraj Kandpal 463*33898377SSuraj Kandpal struct wired_cmd_validate_locality_out { 464*33898377SSuraj Kandpal struct hdcp_cmd_header header; 465*33898377SSuraj Kandpal struct hdcp_port_id port; 466*33898377SSuraj Kandpal } __packed; 467*33898377SSuraj Kandpal 468*33898377SSuraj Kandpal /* 469*33898377SSuraj Kandpal * Data structures for integrated wired HDCP2 Tx in support of the 470*33898377SSuraj Kandpal * SKE protocol 471*33898377SSuraj Kandpal */ 472*33898377SSuraj Kandpal /* HECI struct for creating session key */ 473*33898377SSuraj Kandpal struct wired_cmd_get_session_key_in { 474*33898377SSuraj Kandpal struct hdcp_cmd_header header; 475*33898377SSuraj Kandpal struct hdcp_port_id port; 476*33898377SSuraj Kandpal } __packed; 477*33898377SSuraj Kandpal 478*33898377SSuraj Kandpal struct wired_cmd_get_session_key_out { 479*33898377SSuraj Kandpal struct hdcp_cmd_header header; 480*33898377SSuraj Kandpal struct hdcp_port_id port; 481*33898377SSuraj Kandpal u8 e_dkey_ks[HDCP_2_2_E_DKEY_KS_LEN]; 482*33898377SSuraj Kandpal u8 r_iv[HDCP_2_2_RIV_LEN]; 483*33898377SSuraj Kandpal } __packed; 484*33898377SSuraj Kandpal 485*33898377SSuraj Kandpal /* HECI struct for the Tx enable authentication command */ 486*33898377SSuraj Kandpal struct wired_cmd_enable_auth_in { 487*33898377SSuraj Kandpal struct hdcp_cmd_header header; 488*33898377SSuraj Kandpal struct hdcp_port_id port; 489*33898377SSuraj Kandpal u8 stream_type; 490*33898377SSuraj Kandpal } __packed; 491*33898377SSuraj Kandpal 492*33898377SSuraj Kandpal struct wired_cmd_enable_auth_out { 493*33898377SSuraj Kandpal struct hdcp_cmd_header header; 494*33898377SSuraj Kandpal struct hdcp_port_id port; 495*33898377SSuraj Kandpal } __packed; 496*33898377SSuraj Kandpal 497*33898377SSuraj Kandpal /* 498*33898377SSuraj Kandpal * Data structures for integrated wired HDCP2 Tx in support of 499*33898377SSuraj Kandpal * the repeater protocols 500*33898377SSuraj Kandpal */ 501*33898377SSuraj Kandpal /* 502*33898377SSuraj Kandpal * HECI struct for verifying the downstream repeater's HDCP topology in an 503*33898377SSuraj Kandpal * integrated wired HDCP Tx session. 504*33898377SSuraj Kandpal */ 505*33898377SSuraj Kandpal struct wired_cmd_verify_repeater_in { 506*33898377SSuraj Kandpal struct hdcp_cmd_header header; 507*33898377SSuraj Kandpal struct hdcp_port_id port; 508*33898377SSuraj Kandpal u8 rx_info[HDCP_2_2_RXINFO_LEN]; 509*33898377SSuraj Kandpal u8 seq_num_v[HDCP_2_2_SEQ_NUM_LEN]; 510*33898377SSuraj Kandpal u8 v_prime[HDCP_2_2_V_PRIME_HALF_LEN]; 511*33898377SSuraj Kandpal u8 receiver_ids[HDCP_2_2_RECEIVER_IDS_MAX_LEN]; 512*33898377SSuraj Kandpal } __packed; 513*33898377SSuraj Kandpal 514*33898377SSuraj Kandpal struct wired_cmd_verify_repeater_out { 515*33898377SSuraj Kandpal struct hdcp_cmd_header header; 516*33898377SSuraj Kandpal struct hdcp_port_id port; 517*33898377SSuraj Kandpal u8 content_type_supported; 518*33898377SSuraj Kandpal u8 v[HDCP_2_2_V_PRIME_HALF_LEN]; 519*33898377SSuraj Kandpal } __packed; 520*33898377SSuraj Kandpal 521*33898377SSuraj Kandpal /* 522*33898377SSuraj Kandpal * HECI struct in support of stream management in an 523*33898377SSuraj Kandpal * integrated wired HDCP Tx session. 524*33898377SSuraj Kandpal */ 525*33898377SSuraj Kandpal struct wired_cmd_repeater_auth_stream_req_in { 526*33898377SSuraj Kandpal struct hdcp_cmd_header header; 527*33898377SSuraj Kandpal struct hdcp_port_id port; 528*33898377SSuraj Kandpal u8 seq_num_m[HDCP_2_2_SEQ_NUM_LEN]; 529*33898377SSuraj Kandpal u8 m_prime[HDCP_2_2_MPRIME_LEN]; 530*33898377SSuraj Kandpal __be16 k; 531*33898377SSuraj Kandpal struct hdcp2_streamid_type streams[]; 532*33898377SSuraj Kandpal } __packed; 533*33898377SSuraj Kandpal 534*33898377SSuraj Kandpal struct wired_cmd_repeater_auth_stream_req_out { 535*33898377SSuraj Kandpal struct hdcp_cmd_header header; 536*33898377SSuraj Kandpal struct hdcp_port_id port; 537*33898377SSuraj Kandpal } __packed; 538*33898377SSuraj Kandpal 5394f73dc7aSAnshuman Gupta #endif /* _I915_HDCP_INTERFACE_H_ */ 540