Support multiple cameras in framework.

Change-Id: I081f0fbdca4b633715ea7c3b3d42f8662d27598a

2 files changed, 26 insertions, 4 deletions

diff --git a/camera/Camera.cpp b/camera/Camera.cpp
index f19c502..3346b1f 100644
--- a/camera/Camera.cpp
+++ b/camera/Camera.cpp
@@ -95,13 +95,20 @@ Camera::~Camera()
     disconnect();
 }
 
-sp<Camera> Camera::connect()
+int32_t Camera::getNumberOfCameras()
+{
+    const sp<ICameraService>& cs = getCameraService();
+    if (cs == 0) return 0;
+    return cs->getNumberOfCameras();
+}
+
+sp<Camera> Camera::connect(int cameraId)
 {
     LOGV("connect");
     sp<Camera> c = new Camera();
     const sp<ICameraService>& cs = getCameraService();
     if (cs != 0) {
-        c->mCamera = cs->connect(c);
+        c->mCamera = cs->connect(c, cameraId);
     }
     if (c->mCamera != 0) {
         c->mCamera->asBinder()->linkToDeath(c);
diff --git a/camera/ICameraService.cpp b/camera/ICameraService.cpp
index 46b5478..db1dca6 100644
--- a/camera/ICameraService.cpp
+++ b/camera/ICameraService.cpp
@@ -34,12 +34,22 @@ public:
     {
     }
 
+    // get number of cameras available
+    virtual int32_t getNumberOfCameras()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
+        remote()->transact(BnCameraService::GET_NUMBER_OF_CAMERAS, data, &reply);
+        return reply.readInt32();
+    }
+
     // connect to camera service
-    virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient)
+    virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient, int cameraId)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
         data.writeStrongBinder(cameraClient->asBinder());
+        data.writeInt32(cameraId);
         remote()->transact(BnCameraService::CONNECT, data, &reply);
         return interface_cast<ICamera>(reply.readStrongBinder());
     }
@@ -53,10 +63,15 @@ status_t BnCameraService::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 {
     switch(code) {
+        case GET_NUMBER_OF_CAMERAS: {
+            CHECK_INTERFACE(ICameraService, data, reply);
+            reply->writeInt32(getNumberOfCameras());
+            return NO_ERROR;
+        } break;
         case CONNECT: {
             CHECK_INTERFACE(ICameraService, data, reply);
             sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
-            sp<ICamera> camera = connect(cameraClient);
+            sp<ICamera> camera = connect(cameraClient, data.readInt32());
             reply->writeStrongBinder(camera->asBinder());
             return NO_ERROR;
         } break;