1*4882a593Smuzhiyun.. SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunHDCP: 4*4882a593Smuzhiyun===== 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunME FW as a security engine provides the capability for setting up 7*4882a593SmuzhiyunHDCP2.2 protocol negotiation between the Intel graphics device and 8*4882a593Smuzhiyunan HDC2.2 sink. 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunME FW prepares HDCP2.2 negotiation parameters, signs and encrypts them 11*4882a593Smuzhiyunaccording the HDCP 2.2 spec. The Intel graphics sends the created blob 12*4882a593Smuzhiyunto the HDCP2.2 sink. 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunSimilarly, the HDCP2.2 sink's response is transferred to ME FW 15*4882a593Smuzhiyunfor decryption and verification. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunOnce all the steps of HDCP2.2 negotiation are completed, 18*4882a593Smuzhiyunupon request ME FW will configure the port as authenticated and supply 19*4882a593Smuzhiyunthe HDCP encryption keys to Intel graphics hardware. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun 22*4882a593Smuzhiyunmei_hdcp driver 23*4882a593Smuzhiyun--------------- 24*4882a593Smuzhiyun.. kernel-doc:: drivers/misc/mei/hdcp/mei_hdcp.c 25*4882a593Smuzhiyun :doc: MEI_HDCP Client Driver 26*4882a593Smuzhiyun 27*4882a593Smuzhiyunmei_hdcp api 28*4882a593Smuzhiyun------------ 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun.. kernel-doc:: drivers/misc/mei/hdcp/mei_hdcp.c 31*4882a593Smuzhiyun :functions: 32*4882a593Smuzhiyun 33