Add linkCicam API in Frontend 1.1

This API is mostly for restoring the by-pass mode
Frontend and Cicam connection

Test: make
Bug: 158818696
Change-Id: I62ba19a1c6c531769db6286d3bcd41ab1529bb99

tv/tuner/1.1/IFrontend.hal

@@ -67,4 +67,18 @@ interface IFrontend extends @1.0::IFrontend {
      */
     scan_1_1(FrontendSettings settings, FrontendScanType type, FrontendSettingsExt settingsExt)
             generates (Result result);
+
+    /**
+     * Link Conditional Access Modules (CAM) to Frontend support Common Interface (CI) bypass mode.
+     *
+     * The client may use this to link CI-CAM to a frontend. CI bypass mode requires that the
+     * CICAM also receives the TS concurrently from the frontend when the Demux is receiving the TS
+     * directly from the frontend.
+     *
+     * @param ciCamId specify CI-CAM Id to link.
+     * @return result Result status of the operation.
+     *         SUCCESS if successful,
+     *         UNKNOWN_ERROR if failed for other reasons.
+     */
+    linkCiCam(uint32_t ciCamId) generates (Result result);
 };

tv/tuner/1.1/default/Frontend.cpp

@@ -273,6 +273,14 @@ Return<Result> Frontend::setLnb(uint32_t /* lnb */) {
     return Result::SUCCESS;
 }
 
+Return<Result> Frontend::linkCiCam(uint32_t ciCamId) {
+    ALOGV("%s", __FUNCTION__);
+
+    mCiCamId = ciCamId;
+
+    return Result::SUCCESS;
+}
+
 FrontendType Frontend::getFrontendType() {
     return mType;
 }

tv/tuner/1.1/default/Frontend.h

@@ -62,6 +62,8 @@ class Frontend : public V1_1::IFrontend {
 
     virtual Return<Result> setLnb(uint32_t lnb) override;
 
+    virtual Return<Result> linkCiCam(uint32_t ciCamId) override;
+
     FrontendType getFrontendType();
 
     FrontendId getFrontendId();
@@ -78,6 +80,7 @@ class Frontend : public V1_1::IFrontend {
     FrontendType mType = FrontendType::UNDEFINED;
     FrontendId mId = 0;
     bool mIsLocked = false;
+    uint32_t mCiCamId;
 
     std::ifstream mFrontendData;
 };