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