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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "ConsumerIrService"
     18 
     19 #include "jni.h"
     20 #include <nativehelper/JNIHelp.h>
     21 #include "android_runtime/AndroidRuntime.h"
     22 
     23 #include <stdlib.h>
     24 #include <utils/misc.h>
     25 #include <utils/Log.h>
     26 #include <android/hardware/ir/1.0/IConsumerIr.h>
     27 #include <nativehelper/ScopedPrimitiveArray.h>
     28 
     29 using ::android::hardware::ir::V1_0::IConsumerIr;
     30 using ::android::hardware::ir::V1_0::ConsumerIrFreqRange;
     31 using ::android::hardware::hidl_vec;
     32 
     33 namespace android {
     34 
     35 static sp<IConsumerIr> mHal;
     36 
     37 static jboolean halOpen(JNIEnv* /* env */, jobject /* obj */) {
     38     // TODO(b/31632518)
     39     mHal = IConsumerIr::getService();
     40     return mHal != nullptr;
     41 }
     42 
     43 static jint halTransmit(JNIEnv *env, jobject /* obj */, jint carrierFrequency,
     44    jintArray pattern) {
     45     ScopedIntArrayRO cPattern(env, pattern);
     46     if (cPattern.get() == NULL) {
     47         return -EINVAL;
     48     }
     49     hidl_vec<int32_t> patternVec;
     50     patternVec.setToExternal(const_cast<int32_t*>(cPattern.get()), cPattern.size());
     51 
     52     bool success = mHal->transmit(carrierFrequency, patternVec);
     53     return success ? 0 : -1;
     54 }
     55 
     56 static jintArray halGetCarrierFrequencies(JNIEnv *env, jobject /* obj */) {
     57     int len;
     58     hidl_vec<ConsumerIrFreqRange> ranges;
     59     bool success;
     60 
     61     auto cb = [&](bool s, hidl_vec<ConsumerIrFreqRange> vec) {
     62             ranges = vec;
     63             success = s;
     64     };
     65     mHal->getCarrierFreqs(cb);
     66 
     67     if (!success) {
     68         return NULL;
     69     }
     70     len = ranges.size();
     71 
     72     int i;
     73     ScopedIntArrayRW freqsOut(env, env->NewIntArray(len*2));
     74     jint *arr = freqsOut.get();
     75     if (arr == NULL) {
     76         return NULL;
     77     }
     78     for (i = 0; i < len; i++) {
     79         arr[i*2] = static_cast<jint>(ranges[i].min);
     80         arr[i*2+1] = static_cast<jint>(ranges[i].max);
     81     }
     82 
     83     return freqsOut.getJavaArray();
     84 }
     85 
     86 static const JNINativeMethod method_table[] = {
     87     { "halOpen", "()Z", (void *)halOpen },
     88     { "halTransmit", "(I[I)I", (void *)halTransmit },
     89     { "halGetCarrierFrequencies", "()[I", (void *)halGetCarrierFrequencies},
     90 };
     91 
     92 int register_android_server_ConsumerIrService(JNIEnv *env) {
     93     return jniRegisterNativeMethods(env, "com/android/server/ConsumerIrService",
     94             method_table, NELEM(method_table));
     95 }
     96 
     97 };
     98