display: Add HDMI CEC HAL
Implement the spec as per
hardware/libhardware/include/hardware/hdmi_cec.h
Change-Id: I02e1ba9deee1007b7e5922c363b9f5d6c6ad82a9
diff --git a/libqservice/IQHDMIClient.cpp b/libqservice/IQHDMIClient.cpp
new file mode 100644
index 0000000..9f5044a
--- /dev/null
+++ b/libqservice/IQHDMIClient.cpp
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2014 The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of The Linux Foundation. nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#include <utils/Log.h>
+#include <binder/Parcel.h>
+#include "IQHDMIClient.h"
+
+using namespace android;
+namespace qClient {
+
+enum {
+ HDMI_CONNECTED = IBinder::FIRST_CALL_TRANSACTION,
+ CEC_MESSAGE_RECEIVED
+};
+
+class BpQHDMIClient : public BpInterface<IQHDMIClient>
+{
+public:
+ BpQHDMIClient(const sp<IBinder>& impl)
+ :BpInterface<IQHDMIClient>(impl)
+ {
+ }
+
+ void onHdmiHotplug(int connected)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IQHDMIClient::getInterfaceDescriptor());
+ data.writeInt32(connected);
+ remote()->transact(HDMI_CONNECTED, data, &reply, IBinder::FLAG_ONEWAY);
+ }
+
+ void onCECMessageRecieved(char *msg, ssize_t len)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IQHDMIClient::getInterfaceDescriptor());
+ data.writeInt32((int32_t)len);
+ void *buf = data.writeInplace(len);
+ if (buf != NULL)
+ memcpy(buf, msg, len);
+ remote()->transact(CEC_MESSAGE_RECEIVED, data, &reply,
+ IBinder::FLAG_ONEWAY);
+ }
+};
+
+IMPLEMENT_META_INTERFACE(QHDMIClient,
+ "android.display.IQHDMIClient");
+
+status_t BnQHDMIClient::onTransact(uint32_t code, const Parcel& data,
+ Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case HDMI_CONNECTED: {
+ CHECK_INTERFACE(IQHDMIClient, data, reply);
+ int connected = data.readInt32();
+ onHdmiHotplug(connected);
+ return NO_ERROR;
+ }
+ case CEC_MESSAGE_RECEIVED: {
+ CHECK_INTERFACE(IQHDMIClient, data, reply);
+ ssize_t len = data.readInt32();
+ const void* msg;
+ if(len >= 0 && len <= (ssize_t) data.dataAvail()) {
+ msg = data.readInplace(len);
+ } else {
+ msg = NULL;
+ len = 0;
+ }
+ if (msg != NULL)
+ onCECMessageRecieved((char*) msg, len);
+ return NO_ERROR;
+ }
+ default: {
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+ }
+}
+
+}; //namespace qClient