diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c index 3e81850a7ffe..5e01c6e24cbc 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c @@ -251,6 +251,33 @@ out: return status; } +static enum mod_hdcp_status update_display_adjustments(struct mod_hdcp *hdcp, + struct mod_hdcp_display *display, + struct mod_hdcp_display_adjustment *adj) +{ + enum mod_hdcp_status status = MOD_HDCP_STATUS_NOT_IMPLEMENTED; + + if (is_in_authenticated_states(hdcp) && + is_dp_mst_hdcp(hdcp) && + display->adjust.disable == true && + adj->disable == false) { + display->adjust.disable = false; + if (is_hdcp1(hdcp)) + status = mod_hdcp_hdcp1_enable_dp_stream_encryption(hdcp); + else if (is_hdcp2(hdcp)) + status = mod_hdcp_hdcp2_enable_dp_stream_encryption(hdcp); + + if (status != MOD_HDCP_STATUS_SUCCESS) + display->adjust.disable = true; + } + + if (status == MOD_HDCP_STATUS_SUCCESS && + memcmp(adj, &display->adjust, + sizeof(struct mod_hdcp_display_adjustment)) != 0) + status = MOD_HDCP_STATUS_NOT_IMPLEMENTED; + + return status; +} /* * Implementation of functions in mod_hdcp.h */ @@ -391,7 +418,7 @@ out: return status; } -enum mod_hdcp_status mod_hdcp_update_authentication(struct mod_hdcp *hdcp, +enum mod_hdcp_status mod_hdcp_update_display(struct mod_hdcp *hdcp, uint8_t index, struct mod_hdcp_link_adjustment *link_adjust, struct mod_hdcp_display_adjustment *display_adjust, @@ -419,6 +446,15 @@ enum mod_hdcp_status mod_hdcp_update_authentication(struct mod_hdcp *hdcp, goto out; } + if (memcmp(link_adjust, &hdcp->connection.link.adjust, + sizeof(struct mod_hdcp_link_adjustment)) == 0 && + memcmp(display_adjust, &display->adjust, + sizeof(struct mod_hdcp_display_adjustment)) != 0) { + status = update_display_adjustments(hdcp, display, display_adjust); + if (status != MOD_HDCP_STATUS_NOT_IMPLEMENTED) + goto out; + } + /* stop current authentication */ status = reset_authentication(hdcp, output); if (status != MOD_HDCP_STATUS_SUCCESS) |