1 /*
2 * Copyright (C) 2021 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 #include <aidl/android/hardware/ir/BnConsumerIr.h>
18 #include <aidl/android/hardware/ir/ConsumerIrFreqRange.h>
19 #include <android-base/logging.h>
20 #include <android/binder_interface_utils.h>
21 #include <android/binder_manager.h>
22 #include <android/binder_process.h>
23 #include <hardware/consumerir.h>
24 #include <numeric>
25
26 #include <log/log.h>
27
28 using ::aidl::android::hardware::ir::ConsumerIrFreqRange;
29
30 namespace aidl::android::hardware::ir {
31
32 class ConsumerIr : public BnConsumerIr {
33 public:
34 ConsumerIr();
35 private:
36 ::ndk::ScopedAStatus getCarrierFreqs(std::vector<ConsumerIrFreqRange>* _aidl_return) override;
37 ::ndk::ScopedAStatus transmit(int32_t in_carrierFreqHz,
38 const std::vector<int32_t>& in_pattern) override;
39 consumerir_device_t *mDevice = nullptr;
40 };
41
ConsumerIr()42 ConsumerIr::ConsumerIr() {
43 const hw_module_t *hw_module = NULL;
44
45 int ret = hw_get_module(CONSUMERIR_HARDWARE_MODULE_ID, &hw_module);
46 if (ret != 0) {
47 ALOGE("hw_get_module %s failed: %d", CONSUMERIR_HARDWARE_MODULE_ID, ret);
48 return;
49 }
50 ret = hw_module->methods->open(hw_module, CONSUMERIR_TRANSMITTER, (hw_device_t **) &mDevice);
51 if (ret < 0) {
52 // note - may want to make this a fatal error - otherwise the service will crash when it's used
53 ALOGE("Can't open consumer IR transmitter, error: %d", ret);
54 // in case it's modified
55 mDevice = nullptr;
56 }
57 }
58
getCarrierFreqs(std::vector<ConsumerIrFreqRange> * _aidl_return)59 ::ndk::ScopedAStatus ConsumerIr::getCarrierFreqs(std::vector<ConsumerIrFreqRange>* _aidl_return) {
60 int32_t len = mDevice->get_num_carrier_freqs(mDevice);
61 if (len < 0) {
62 (*_aidl_return).clear();
63 return ::ndk::ScopedAStatus::ok();
64 }
65
66 consumerir_freq_range_t *rangeAr = new consumerir_freq_range_t[len];
67 bool success = (mDevice->get_carrier_freqs(mDevice, len, rangeAr) >= 0);
68 if (!success) {
69 (*_aidl_return).clear();
70 return ::ndk::ScopedAStatus::ok();
71 }
72
73 (*_aidl_return).resize(len);
74 for (int32_t i = 0; i < len; i++) {
75 (*_aidl_return)[i].minHz = static_cast<uint32_t>(rangeAr[i].min);
76 (*_aidl_return)[i].maxHz = static_cast<uint32_t>(rangeAr[i].max);
77 }
78 return ::ndk::ScopedAStatus::ok();
79 }
80
transmit(int32_t in_carrierFreqHz,const std::vector<int32_t> & in_pattern)81 ::ndk::ScopedAStatus ConsumerIr::transmit(int32_t in_carrierFreqHz,
82 const std::vector<int32_t>& in_pattern) {
83 if (in_carrierFreqHz > 0) {
84 mDevice->transmit(mDevice, in_carrierFreqHz, in_pattern.data(), in_pattern.size());
85 return ::ndk::ScopedAStatus::ok();
86 } else {
87 return ::ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
88 }
89 }
90
91 } // namespace aidl::android::hardware::ir
92
93 using aidl::android::hardware::ir::ConsumerIr;
94
main()95 int main() {
96 auto binder = ::ndk::SharedRefBase::make<ConsumerIr>();
97 const std::string name = std::string() + ConsumerIr::descriptor + "/default";
98 CHECK_EQ(STATUS_OK, AServiceManager_addService(binder->asBinder().get(), name.c_str()))
99 << "Failed to register " << name;
100
101 ABinderProcess_setThreadPoolMaxThreadCount(0);
102 ABinderProcess_joinThreadPool();
103
104 return EXIT_FAILURE; // should not reached
105 }
106