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path: root/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
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2021-08-09drm/amd/display: add authentication_complete in hdcp outputWenjing Liu
[why] DM needs to be notified when hdcp module has completed authentication attempt. Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: add mod hdcp interface for supporting encryption state queryWenjing Liu
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-02drm/amd/display: set hdcp1 wa re-auth delay to 200msJake Wang
[Why] Fail and restart timing for HDCP1 retry occurs too quickly. This would cause some MST monitors to show black screen. [How] Adjusted timing of fail and restart to 200ms. Signed-off-by: Jake Wang <haonan.wang2@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-05drm/amd/display: Workaround to do HDCP authentication twice on certain displaysGeorge Shen
[Why] When transitioning from SST to MST, the HDCP repeater in some MST displays will enter a bad state. The HDCP repeater is recovered after failing and performing authentication again. [How] Add monitor patch to trigger HDCP authentication failure after encryption is enabled and re-authenticate. Signed-off-by: George Shen <george.shen@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-02-12drm/amd/display: update HDCP DTM immediately after hardware programmingWenjing Liu
[why] HDCP DTM needs to be aware of the upto date display topology information in order to validate hardware consistency. [how] update HDCP DTM on update_stream_config call. Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-02-12drm/amd/display: no hdcp retry if bksv or ksv list is revokedWenjing Liu
[why] According to the specs when bksv or ksv list fails SRM check, HDCP TX should abort hdcp immediately. However with the current code HDCP will be reattampt upto 4 times. [how] Add the logic that stop HDCP retry if bksv or ksv list is revoked. Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-30drm/amd/display: fix spelling mistake link_integiry_check -> ↵Colin Ian King
link_integrity_check There is a spelling mistake on the struct field name link_integiry_check, fix this by renaming it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-07drm/amd/display: rx_validation failed resume from sleepJing Zhou
[why] Most DP/HDMI monitors need more time to response rx_validation request. [how] Add generic 1000ms delay. Signed-off-by: Jing Zhou <Jing.Zhou@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-03drm/amd/display: fix spelling mistake AUTHENICATED -> AUTHENTICATEDColin Ian King
There is a spelling mistake in the macros H1_A45_AUTHENICATED and D1_A4_AUTHENICATED, fix these by adding the missing T. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-03drm/amd/display: Add HDCP moduleBhawanpreet Lakha
This module manages HDCP for amdgpu driver. The module behaves as a state machine which handles the different authentication states of HDCP The module is divided into 3 major components +--------+ | Hdcp.c | +--------+ Manages the state machine, sends the events to be executed and communicates with the dm +-----------+ |Execution.c| +-----------+ This executes events based on the current state. Also generates execution results as transition inputs +------------+ |Transition.c| +------------+ Decides the next state based on the input and makes requests to hdcp.c to handle. +-------------+ ------> | Execution.c | ------ | +-------------+ | | V +----+ +--------+ +--------------+ | DM | -----> | Hdcp.c | <------------ | Transition.c | +----+ <----- +--------+ +--------------+ v2: Drop unused function definitions Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>