On 12/13/2018 1:47 PM, Winkler, Tomas wrote:
All HDCP1.4 routines are gathered together, followed by the generic functions
those can be extended for HDCP2.2 too.
Signed-off-by: Ramalingam C <ramalinga...@intel.com>
---
drivers/gpu/drm/i915/intel_hdcp.c | 118 +++++++++++++++++++------------------
-
1 file changed, 59 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdcp.c
b/drivers/gpu/drm/i915/intel_hdcp.c
index e000e54ad569..506b4cc6f46b 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -731,6 +731,65 @@ struct intel_connector
*intel_hdcp_to_connector(struct intel_hdcp *hdcp)
return container_of(hdcp, struct intel_connector, hdcp); }
+/* Implements Part 3 of the HDCP authorization procedure */ int
+intel_hdcp_check_link(struct intel_connector *connector) {
Should be static
At this point in time, invoked from intel_dp.c. But at later part of
this series this function can be defined as static. Will do it then.
-Ram
+ struct intel_hdcp *hdcp = &connector->hdcp;
+ struct drm_i915_private *dev_priv = connector->base.dev-
dev_private;
+ struct intel_digital_port *intel_dig_port =
conn_to_dig_port(connector);
+ enum port port = intel_dig_port->base.port;
+ int ret = 0;
+
+ if (!hdcp->shim)
+ return -ENOENT;
+
+ mutex_lock(&hdcp->mutex);
+
+ if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED)
+ goto out;
+
+ if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) {
+ DRM_ERROR("%s:%d HDCP check failed: link is not
encrypted,%x\n",
+ connector->base.name, connector->base.base.id,
+ I915_READ(PORT_HDCP_STATUS(port)));
+ ret = -ENXIO;
+ hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ schedule_work(&hdcp->prop_work);
+ goto out;
+ }
+
+ if (hdcp->shim->check_link(intel_dig_port)) {
+ if (hdcp->value !=
DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
+ hdcp->value =
DRM_MODE_CONTENT_PROTECTION_ENABLED;
+ schedule_work(&hdcp->prop_work);
+ }
+ goto out;
+ }
+
+ DRM_DEBUG_KMS("[%s:%d] HDCP link failed, retrying
authentication\n",
+ connector->base.name, connector->base.base.id);
+
+ ret = _intel_hdcp_disable(connector);
+ if (ret) {
+ DRM_ERROR("Failed to disable hdcp (%d)\n", ret);
+ hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ schedule_work(&hdcp->prop_work);
+ goto out;
+ }
+
+ ret = _intel_hdcp_enable(connector);
+ if (ret) {
+ DRM_ERROR("Failed to enable hdcp (%d)\n", ret);
+ hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ schedule_work(&hdcp->prop_work);
+ goto out;
+ }
+
+out:
+ mutex_unlock(&hdcp->mutex);
+ return ret;
+}
+
static void intel_hdcp_check_work(struct work_struct *work) {
struct intel_hdcp *hdcp = container_of(to_delayed_work(work),
@@ -867,62 +926,3 @@ void intel_hdcp_atomic_check(struct drm_connector
*connector,
new_state->crtc);
crtc_state->mode_changed = true;
}
-
-/* Implements Part 3 of the HDCP authorization procedure */ -int
intel_hdcp_check_link(struct intel_connector *connector) -{
- struct intel_hdcp *hdcp = &connector->hdcp;
- struct drm_i915_private *dev_priv = connector->base.dev-
dev_private;
- struct intel_digital_port *intel_dig_port =
conn_to_dig_port(connector);
- enum port port = intel_dig_port->base.port;
- int ret = 0;
-
- if (!hdcp->shim)
- return -ENOENT;
-
- mutex_lock(&hdcp->mutex);
-
- if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED)
- goto out;
-
- if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) {
- DRM_ERROR("%s:%d HDCP check failed: link is not
encrypted,%x\n",
- connector->base.name, connector->base.base.id,
- I915_READ(PORT_HDCP_STATUS(port)));
- ret = -ENXIO;
- hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
- schedule_work(&hdcp->prop_work);
- goto out;
- }
-
- if (hdcp->shim->check_link(intel_dig_port)) {
- if (hdcp->value !=
DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
- hdcp->value =
DRM_MODE_CONTENT_PROTECTION_ENABLED;
- schedule_work(&hdcp->prop_work);
- }
- goto out;
- }
-
- DRM_DEBUG_KMS("[%s:%d] HDCP link failed, retrying
authentication\n",
- connector->base.name, connector->base.base.id);
-
- ret = _intel_hdcp_disable(connector);
- if (ret) {
- DRM_ERROR("Failed to disable hdcp (%d)\n", ret);
- hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
- schedule_work(&hdcp->prop_work);
- goto out;
- }
-
- ret = _intel_hdcp_enable(connector);
- if (ret) {
- DRM_DEBUG_KMS("Failed to enable hdcp (%d)\n", ret);
- hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
- schedule_work(&hdcp->prop_work);
- goto out;
- }
-
-out:
- mutex_unlock(&hdcp->mutex);
- return ret;
-}
--
2.7.4
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