> 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>
> Acked-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> Reviewed-by: Uma Shankar <uma.shan...@intel.com>
Reviewed-by: Tomas Winkler <tomas.wink...@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
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