Populates the downstream info for HDCP2.2 encryption also. On success
of encryption Blob is updated.
Additional two variable are added to downstream info blob. Such as
ver_in_force and content type.
Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_hdcp.c | 29 ++++++++++++++++++++++++++++-
include/uapi/drm/drm_mode.h | 3 +++
2 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index 9ce634e552c1..8c05f382718c 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -1271,6 +1271,12 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
return -EPERM;
}
+ hdcp->downstream_info->ver_in_force = DRM_MODE_HDCP22_IN_FORCE;
+ hdcp->downstream_info->content_type = hdcp->content_type;
+ memcpy(hdcp->downstream_info->bksv, msgs.send_cert.cert_rx.receiver_id,
+ HDCP_2_2_RECEIVER_ID_LEN);
+ hdcp->downstream_info->is_repeater = hdcp->is_repeater;
+
/*
* Here msgs.no_stored_km will hold msgs corresponding to the km
* stored also.
@@ -1462,6 +1468,11 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
return -EPERM;
}
+ hdcp->downstream_info->device_count = device_cnt;
+ hdcp->downstream_info->depth = HDCP_2_2_DEPTH(rx_info[0]);
+ memcpy(hdcp->downstream_info->ksv_list, msgs.recvid_list.receiver_ids,
+ device_cnt * HDCP_2_2_RECEIVER_ID_LEN);
+
ret = hdcp2_verify_rep_topology_prepare_ack(connector,
&msgs.recvid_list,
&msgs.rep_ack);
@@ -1648,6 +1659,13 @@ static int _intel_hdcp2_enable(struct intel_connector *connector)
if (ret) {
DRM_DEBUG_KMS("HDCP2 Type%d Enabling Failed. (%d)\n",
hdcp->content_type, ret);
+
+ memset(hdcp->downstream_info, 0,
+ sizeof(struct cp_downstream_info));
+ drm_mode_connector_update_cp_downstream_property(
+ &connector->base,
+ hdcp->downstream_info);
+
return ret;
}
@@ -1655,12 +1673,17 @@ static int _intel_hdcp2_enable(struct intel_connector *connector)
connector->base.name, connector->base.base.id,
hdcp->content_type);
+ drm_mode_connector_update_cp_downstream_property(
+ &connector->base,
+ hdcp->downstream_info);
hdcp->hdcp2_encrypted = true;
+
return 0;
}
static int _intel_hdcp2_disable(struct intel_connector *connector)
{
+ struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is being Disabled\n",
@@ -1671,8 +1694,12 @@ static int _intel_hdcp2_disable(struct intel_connector *connector)
if (hdcp2_deauthenticate_port(connector) < 0)
DRM_DEBUG_KMS("Port deauth failed.\n");
- connector->hdcp.hdcp2_encrypted = false;
+ hdcp->hdcp2_encrypted = false;
+ memset(hdcp->downstream_info, 0, sizeof(struct cp_downstream_info));
+ drm_mode_connector_update_cp_downstream_property(
+ &connector->base,
+ hdcp->downstream_info);
return ret;
}
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 93403b2631ef..4d868de06f8f 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -223,6 +223,9 @@ struct cp_downstream_info {
/* Version of HDCP authenticated (1.4/2.2) */
__u32 ver_in_force;
+ /* Applicable only for HDCP2.2 */
+ __u8 content_type;
+
/* KSV of immediate HDCP Sink. In Little-Endian Format. */
char bksv[DRM_MODE_HDCP_KSV_LEN];
--
2.7.4
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