Revert "Enable EVS service"

This reverts commit 6fb4b69a407540e1344dfabddbb4917af7e11713.

Change-Id: I09756b315abde19f317efd5bba0061341ffc4e20
diff --git a/evs/app/evs_app.rc b/evs/app/evs_app.rc
index a61edfe..69832f9 100644
--- a/evs/app/evs_app.rc
+++ b/evs/app/evs_app.rc
@@ -1,5 +1,5 @@
-service evs_app /system/bin/evs_app
-    class hal
-    priority -20
-    user automotive_evs
-    group automotive_evs
+#service evs_app /system/bin/evs_app
+#    class hal
+#    priority -20
+#    user automotive_evs
+#    group automotive_evs
diff --git a/evs/manager/android.automotive.evs.manager@1.0.rc b/evs/manager/android.automotive.evs.manager@1.0.rc
index 8a53ba7..b1b2c97 100644
--- a/evs/manager/android.automotive.evs.manager@1.0.rc
+++ b/evs/manager/android.automotive.evs.manager@1.0.rc
@@ -1,6 +1,6 @@
-service evs_manager /system/bin/android.automotive.evs.manager@1.0
-    class hal
-    priority -20
-    user automotive_evs
-    group automotive_evs
-    onrestart restart evs_app
+#service evs_manager /system/bin/android.automotive.evs.manager@1.0
+#    class hal
+#    priority -20
+#    user automotive_evs
+#    group automotive_evs
+#    onrestart restart evs_app
diff --git a/evs/sampleDriver/EvsEnumerator.cpp b/evs/sampleDriver/EvsEnumerator.cpp
index 2336bf3..d31f672 100644
--- a/evs/sampleDriver/EvsEnumerator.cpp
+++ b/evs/sampleDriver/EvsEnumerator.cpp
@@ -39,10 +39,9 @@
 EvsEnumerator::EvsEnumerator() {
     ALOGD("EvsEnumerator created");
 
-    enumerateDevices();
-}
+    unsigned videoCount   = 0;
+    unsigned captureCount = 0;
 
-void EvsEnumerator::enumerateDevices() {
     // For every video* entry in the dev folder, see if it reports suitable capabilities
     // WARNING:  Depending on the driver implementations this could be slow, especially if
     //           there are timeouts or round trips to hardware required to collect the needed
@@ -51,9 +50,7 @@
     //           For example, this code might be replaced with nothing more than:
     //                   sCameraList.emplace_back("/dev/video0");
     //                   sCameraList.emplace_back("/dev/video1");
-    ALOGI("%s: Starting dev/video* enumeration", __FUNCTION__);
-    unsigned videoCount   = 0;
-    unsigned captureCount = 0;
+    ALOGI("Starting dev/video* enumeration");
     DIR* dir = opendir("/dev");
     if (!dir) {
         LOG_FATAL("Failed to open /dev folder\n");
@@ -75,6 +72,7 @@
     ALOGI("Found %d qualified video capture devices of %d checked\n", captureCount, videoCount);
 }
 
+
 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsEnumerator follow.
 Return<void> EvsEnumerator::getCameraList(getCameraList_cb _hidl_cb)  {
     ALOGD("getCameraList");
@@ -104,13 +102,8 @@
     // Is this a recognized camera id?
     CameraRecord *pRecord = findCameraById(cameraId);
     if (!pRecord) {
-        ALOGE("Requested camera %s not found, enumerate again", cameraId.c_str());
-        enumerateDevices();
-        pRecord = findCameraById(cameraId);
-        if (!pRecord) {
-            ALOGE("Requested camera %s not found", cameraId.c_str());
-            return nullptr;
-        }
+        ALOGE("Requested camera %s not found", cameraId.c_str());
+        return nullptr;
     }
 
     // Has this camera already been instantiated by another caller?
@@ -252,33 +245,21 @@
     // Enumerate the available capture formats (if any)
     v4l2_fmtdesc formatDescription;
     formatDescription.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-    union {
-        uint32_t format;
-        uint8_t  c[4];
-    } str;
-    bool found = false;
-    for (int i=0; !found; i++) {
+    for (int i=0; true; i++) {
         formatDescription.index = i;
         if (ioctl(fd, VIDIOC_ENUM_FMT, &formatDescription) == 0) {
-            str.format = formatDescription.pixelformat;
-            ALOGI("FORMAT %c%c%c%c (0x%X), type 0x%X, desc %s, flags 0x%X",
-                  str.c[0], str.c[1], str.c[2], str.c[3],
-                  formatDescription.pixelformat, formatDescription.type,
-                  formatDescription.description, formatDescription.flags);
             switch (formatDescription.pixelformat)
             {
-                case V4L2_PIX_FMT_YUYV:     found = true; break;
-                case V4L2_PIX_FMT_NV21:     found = true; break;
-                case V4L2_PIX_FMT_NV16:     found = true; break;
-                case V4L2_PIX_FMT_YVU420:   found = true; break;
-                case V4L2_PIX_FMT_RGB32:    found = true; break;
+                case V4L2_PIX_FMT_YUYV:     return true;
+                case V4L2_PIX_FMT_NV21:     return true;
+                case V4L2_PIX_FMT_NV16:     return true;
+                case V4L2_PIX_FMT_YVU420:   return true;
+                case V4L2_PIX_FMT_RGB32:    return true;
 #ifdef V4L2_PIX_FMT_ARGB32  // introduced with kernel v3.17
-                case V4L2_PIX_FMT_ARGB32:   found = true; break;
-                case V4L2_PIX_FMT_XRGB32:   found = true; break;
+                case V4L2_PIX_FMT_ARGB32:   return true;
+                case V4L2_PIX_FMT_XRGB32:   return true;
 #endif // V4L2_PIX_FMT_ARGB32
-                default:
-                    ALOGW("Unsupported, 0x%X", formatDescription.pixelformat);
-                    break;
+                default:                    break;
             }
         } else {
             // No more formats available
@@ -287,7 +268,7 @@
     }
 
     // If we get here, we didn't find a usable output format
-    return found;
+    return false;
 }
 
 
diff --git a/evs/sampleDriver/EvsEnumerator.h b/evs/sampleDriver/EvsEnumerator.h
index a4bfe7e..d8d7b36 100644
--- a/evs/sampleDriver/EvsEnumerator.h
+++ b/evs/sampleDriver/EvsEnumerator.h
@@ -70,8 +70,6 @@
     static std::list<CameraRecord> sCameraList;
 
     static wp<EvsGlDisplay>          sActiveDisplay; // Weak pointer. Object destructs if client dies.
-
-    void enumerateDevices();
 };
 
 } // namespace implementation
diff --git a/evs/sampleDriver/EvsV4lCamera.cpp b/evs/sampleDriver/EvsV4lCamera.cpp
index 55ea497..f811a1f 100644
--- a/evs/sampleDriver/EvsV4lCamera.cpp
+++ b/evs/sampleDriver/EvsV4lCamera.cpp
@@ -47,9 +47,13 @@
         ALOGE("Failed to open v4l device %s\n", deviceName);
     }
 
-    // Output buffer format.
-    // TODO: Does this need to be configurable?
-    mFormat = HAL_PIXEL_FORMAT_RGBA_8888;
+    // NOTE:  Our current spec says only support NV21 -- can we stick to that with software
+    // conversion?  Will this work with the hardware texture units?
+    // TODO:  Settle on the one official format that works on all platforms
+    // TODO:  Get NV21 working?  It is scrambled somewhere along the way right now.
+//    mFormat = HAL_PIXEL_FORMAT_YCRCB_420_SP;    // 420SP == NV21
+//    mFormat = HAL_PIXEL_FORMAT_RGBA_8888;
+    mFormat = HAL_PIXEL_FORMAT_YCBCR_422_I;
 
     // How we expect to use the gralloc buffers we'll exchange with our client
     mUsage  = GRALLOC_USAGE_HW_TEXTURE     |
@@ -155,15 +159,17 @@
     // Choose which image transfer function we need
     // Map from V4L2 to Android graphic buffer format
     const uint32_t videoSrcFormat = mVideo.getV4LFormat();
-    ALOGI("Configuring to accept %4.4s camera data and convert to 0x%X",
-          (char*)&videoSrcFormat, mFormat);
+    ALOGI("Configuring to accept %4.4s camera data and convert to %4.4s",
+          (char*)&videoSrcFormat, (char*)&mFormat);
 
     // TODO:  Simplify this by supporting only ONE fixed output format
     switch (mFormat) {
     case HAL_PIXEL_FORMAT_YCRCB_420_SP:
         switch (videoSrcFormat) {
         case V4L2_PIX_FMT_NV21:     mFillBufferFromVideo = fillNV21FromNV21;    break;
+    //  case V4L2_PIX_FMT_YV12:     mFillBufferFromVideo = fillNV21FromYV12;    break;
         case V4L2_PIX_FMT_YUYV:     mFillBufferFromVideo = fillNV21FromYUYV;    break;
+    //  case V4L2_PIX_FORMAT_NV16:  mFillBufferFromVideo = fillNV21FromNV16;    break;
         default:
             // TODO:  Are there other V4L2 formats we must support?
             ALOGE("Unhandled camera output format %c%c%c%c (0x%8X)\n",