@@ -596,6 +596,60 @@ static int mei_verify_mprime(struct device *dev, void *hdcp_data,
return 0;
}
+/*
+ * mei_enable_hdcp_authentication :
+ * Function to request ME FW to mark a port as authenticated.
+ *
+ * @dev : device corresponding to the mei_cl_device
+ * @hdcp_data : Intel HW specific hdcp data
+ *
+ * Returns 0 on Success, <0 on Failure
+ */
+static int mei_enable_hdcp_authentication(struct device *dev, void *hdcp_data)
+{
+ struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } };
+ struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } };
+ struct mei_cl_device *cldev;
+ struct mei_hdcp_data *data = hdcp_data;
+ ssize_t byte;
+
+ if (!dev || !data)
+ return -EINVAL;
+
+ cldev = to_mei_cl_device(dev);
+
+ enable_auth_in.header.api_version = HDCP_API_VERSION;
+ enable_auth_in.header.command_id = WIRED_ENABLE_AUTH;
+ enable_auth_in.header.status = ME_HDCP_STATUS_SUCCESS;
+ enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN;
+
+ enable_auth_in.port.integrated_port_type = data->port_type;
+ enable_auth_in.port.physical_port = data->port;
+ enable_auth_in.stream_type = data->streams[0].stream_type;
+
+ byte = mei_cldev_send(cldev, (u8 *)&enable_auth_in,
+ sizeof(enable_auth_in));
+ if (byte < 0) {
+ dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte);
+ return byte;
+ }
+
+ byte = mei_cldev_recv(cldev, (u8 *)&enable_auth_out,
+ sizeof(enable_auth_out));
+ if (byte < 0) {
+ dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte);
+ return byte;
+ }
+
+ if (enable_auth_out.header.status != ME_HDCP_STATUS_SUCCESS) {
+ dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n",
+ WIRED_ENABLE_AUTH, enable_auth_out.header.status);
+ return -EIO;
+ }
+
+ return 0;
+}
+
static __attribute__((unused))
struct i915_hdcp_component_ops mei_hdcp_ops = {
.owner = THIS_MODULE,
@@ -608,7 +662,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = {
.get_session_key = mei_get_session_key,
.repeater_check_flow_prepare_ack = mei_repeater_check_flow_prepare_ack,
.verify_mprime = mei_verify_mprime,
- .enable_hdcp_authentication = NULL,
+ .enable_hdcp_authentication = mei_enable_hdcp_authentication,
.close_hdcp_session = NULL,
};