Improve Tuner VTS: Generate Scan Combos

This CL allows the VTS to read a vendor's configuration file, determine
if the given devices could support the Scan dataflow, and runs the
integration tests with all valid frontends.

Bug: b/182519645

Test: vts-tradefed run vts --module VtsHalTvTunerTargetTest. Manual
tests with different input configuration files.

Change-Id: Ic6756e284090fbd1961a9ed12c1a4b541fb834b8
diff --git a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.cpp b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.cpp
index 0285e04..95061b5 100644
--- a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.cpp
+++ b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTargetTest.cpp
@@ -926,7 +926,11 @@
     if (!scan.hasFrontendConnection) {
         return;
     }
-    mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_AUTO);
+    vector<ScanHardwareConnections> scan_configs = generateScanConfigurations();
+    for (auto& configuration : scan_configs) {
+        scan = configuration;
+        mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_AUTO);
+    }
 }
 
 TEST_P(TunerFrontendAidlTest, BlindScanFrontend) {
@@ -934,7 +938,11 @@
     if (!scan.hasFrontendConnection) {
         return;
     }
-    mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_BLIND);
+    vector<ScanHardwareConnections> scan_configs = generateScanConfigurations();
+    for (auto& configuration : scan_configs) {
+        scan = configuration;
+        mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_BLIND);
+    }
 }
 
 TEST_P(TunerFrontendAidlTest, TuneFrontendWithFrontendSettings) {
@@ -950,7 +958,11 @@
     if (!scan.hasFrontendConnection) {
         return;
     }
-    mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_BLIND);
+    vector<ScanHardwareConnections> scan_configs = generateScanConfigurations();
+    for (auto& configuration : scan_configs) {
+        scan = configuration;
+        mFrontendTests.scanTest(frontendMap[scan.frontendId], FrontendScanType::SCAN_BLIND);
+    }
 }
 
 TEST_P(TunerFrontendAidlTest, LinkToCiCam) {
diff --git a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
index 2ff19cd..aa38e48 100644
--- a/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
+++ b/tv/tuner/aidl/vts/functional/VtsHalTvTunerTestConfigurations.h
@@ -222,6 +222,32 @@
     return lnbLive_configs;
 }
 
+static inline vector<ScanHardwareConnections> generateScanCombinations() {
+    vector<ScanHardwareConnections> combinations;
+
+    for (auto& id : frontendIds) {
+        ScanHardwareConnections mScan;
+        mScan.frontendId = id;
+        combinations.push_back(mScan);
+    }
+
+    return combinations;
+}
+
+static inline vector<ScanHardwareConnections> generateScanConfigurations() {
+    vector<ScanHardwareConnections> scan_configs;
+    if (configuredScan) {
+        ALOGD("Using scan configuration provided.");
+        scan_configs = {scan};
+    } else {
+        ALOGD("Scan not provided. Generating possible combinations. Consider adding it to "
+              "the configuration file.");
+        scan_configs = generateScanCombinations();
+    }
+
+    return scan_configs;
+}
+
 /** Config all the frontends that would be used in the tests */
 inline void initFrontendConfig() {
     // The test will use the internal default fe when default fe is connected to any data flow
@@ -417,8 +443,8 @@
     TunerTestingConfigAidlReader1_0::connectDvrRecord(record);
     TunerTestingConfigAidlReader1_0::connectTimeFilter(timeFilter);
     TunerTestingConfigAidlReader1_0::connectDescrambling(descrambling);
-    TunerTestingConfigAidlReader1_0::connectLnbRecord(lnbRecord);
     TunerTestingConfigAidlReader1_0::connectLnbLive(lnbLive);
+    TunerTestingConfigAidlReader1_0::connectLnbRecord(lnbRecord);
     TunerTestingConfigAidlReader1_0::connectDvrPlayback(playback);
 };