diff mbox series

[v11,05/42] drm/i915: Gathering the HDCP1.4 routines together

Message ID 1549487071-15343-6-git-send-email-ramalingam.c@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: Implement HDCP2.2 | expand

Commit Message

Ramalingam C Feb. 6, 2019, 9:03 p.m. UTC 
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 <ramalingam.c@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/intel_hdcp.c | 118 +++++++++++++++++++-------------------
 1 file changed, 59 insertions(+), 59 deletions(-)

Comments

Winkler, Tomas Feb. 7, 2019, 3 p.m. UTC | #1 
> 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 <ramalingam.c@intel.com>
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@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 ce7ba3a9c000..8cb85b07cfde 100644
> --- a/drivers/gpu/drm/i915/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/intel_hdcp.c
> @@ -730,6 +730,65 @@ 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) {
> +	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),
> @@ -866,62 +925,3 @@ 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
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index ce7ba3a9c000..8cb85b07cfde 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -730,6 +730,65 @@  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)
+{
+	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),
@@ -866,62 +925,3 @@  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;
-}