1 /*
2 * Copyright 2016 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 "AudioEndpointParcelable"
18 //#define LOG_NDEBUG 0
19 #include <utils/Log.h>
20
21 #include <stdint.h>
22
23 #include <binder/Parcel.h>
24 #include <binder/Parcelable.h>
25 #include <utility/AAudioUtilities.h>
26
27 #include "binding/AAudioServiceDefinitions.h"
28 #include "binding/RingBufferParcelable.h"
29 #include "binding/AudioEndpointParcelable.h"
30
31 using android::base::unique_fd;
32 using android::status_t;
33
34 using namespace aaudio;
35
AudioEndpointParcelable(Endpoint && parcelable)36 AudioEndpointParcelable::AudioEndpointParcelable(Endpoint&& parcelable)
37 : mUpMessageQueueParcelable(parcelable.upMessageQueueParcelable),
38 mDownMessageQueueParcelable(parcelable.downMessageQueueParcelable),
39 mUpDataQueueParcelable(parcelable.upDataQueueParcelable),
40 mDownDataQueueParcelable(parcelable.downDataQueueParcelable),
41 mNumSharedMemories(parcelable.sharedMemories.size()) {
42 for (size_t i = 0; i < parcelable.sharedMemories.size() && i < MAX_SHARED_MEMORIES; ++i) {
43 // Re-construct.
44 mSharedMemories[i].~SharedMemoryParcelable();
45 new(&mSharedMemories[i]) SharedMemoryParcelable(std::move(parcelable.sharedMemories[i]));
46 }
47 }
48
operator =(Endpoint && parcelable)49 AudioEndpointParcelable& AudioEndpointParcelable::operator=(Endpoint&& parcelable) {
50 this->~AudioEndpointParcelable();
51 new(this) AudioEndpointParcelable(std::move(parcelable));
52 return *this;
53 }
54
parcelable()55 Endpoint AudioEndpointParcelable::parcelable()&& {
56 Endpoint result;
57 result.upMessageQueueParcelable = mUpMessageQueueParcelable.parcelable();
58 result.downMessageQueueParcelable = mDownMessageQueueParcelable.parcelable();
59 result.upDataQueueParcelable = mUpDataQueueParcelable.parcelable();
60 result.downDataQueueParcelable = mDownDataQueueParcelable.parcelable();
61 result.sharedMemories.reserve(std::min(mNumSharedMemories, MAX_SHARED_MEMORIES));
62 for (size_t i = 0; i < mNumSharedMemories && i < MAX_SHARED_MEMORIES; ++i) {
63 result.sharedMemories.emplace_back(std::move(mSharedMemories[i]).parcelable());
64 }
65 return result;
66 }
67
68 /**
69 * Add the file descriptor to the table.
70 * @return index in table or negative error
71 */
addFileDescriptor(const unique_fd & fd,int32_t sizeInBytes)72 int32_t AudioEndpointParcelable::addFileDescriptor(const unique_fd& fd,
73 int32_t sizeInBytes) {
74 if (mNumSharedMemories >= MAX_SHARED_MEMORIES) {
75 return AAUDIO_ERROR_OUT_OF_RANGE;
76 }
77 int32_t index = mNumSharedMemories++;
78 mSharedMemories[index].setup(fd, sizeInBytes);
79 return index;
80 }
81
closeDataFileDescriptor()82 void AudioEndpointParcelable::closeDataFileDescriptor() {
83 const int32_t curDataMemoryIndex = mDownDataQueueParcelable.getSharedMemoryIndex();
84 mSharedMemories[curDataMemoryIndex].closeAndReleaseFd();
85 }
86
updateDataFileDescriptor(AudioEndpointParcelable * endpointParcelable)87 void AudioEndpointParcelable::updateDataFileDescriptor(
88 AudioEndpointParcelable* endpointParcelable) {
89 const int32_t curDataMemoryIndex = mDownDataQueueParcelable.getSharedMemoryIndex();
90 const int32_t newDataMemoryIndex =
91 endpointParcelable->mDownDataQueueParcelable.getSharedMemoryIndex();
92 mSharedMemories[curDataMemoryIndex].close();
93 mSharedMemories[curDataMemoryIndex].setup(
94 endpointParcelable->mSharedMemories[newDataMemoryIndex]);
95 mDownDataQueueParcelable.updateMemory(endpointParcelable->mDownDataQueueParcelable);
96 }
97
resolve(EndpointDescriptor * descriptor)98 aaudio_result_t AudioEndpointParcelable::resolve(EndpointDescriptor *descriptor) {
99 aaudio_result_t result = mUpMessageQueueParcelable.resolve(mSharedMemories,
100 &descriptor->upMessageQueueDescriptor);
101 if (result != AAUDIO_OK) return result;
102 result = mDownMessageQueueParcelable.resolve(mSharedMemories,
103 &descriptor->downMessageQueueDescriptor);
104 if (result != AAUDIO_OK) return result;
105
106 result = mDownDataQueueParcelable.resolve(mSharedMemories,
107 &descriptor->dataQueueDescriptor);
108 return result;
109 }
110
resolveDataQueue(RingBufferDescriptor * descriptor)111 aaudio_result_t AudioEndpointParcelable::resolveDataQueue(RingBufferDescriptor *descriptor) {
112 return mDownDataQueueParcelable.resolve(mSharedMemories, descriptor);
113 }
114
close()115 aaudio_result_t AudioEndpointParcelable::close() {
116 int err = 0;
117 for (int i = 0; i < mNumSharedMemories; i++) {
118 int lastErr = mSharedMemories[i].close();
119 if (lastErr < 0) err = lastErr;
120 }
121 return AAudioConvert_androidToAAudioResult(err);
122 }
123
validate() const124 aaudio_result_t AudioEndpointParcelable::validate() const {
125 if (mNumSharedMemories < 0 || mNumSharedMemories >= MAX_SHARED_MEMORIES) {
126 ALOGE("invalid mNumSharedMemories = %d", mNumSharedMemories);
127 return AAUDIO_ERROR_INTERNAL;
128 }
129 return AAUDIO_OK;
130 }
131
dump()132 void AudioEndpointParcelable::dump() {
133 ALOGD("======================================= BEGIN");
134 ALOGD("mNumSharedMemories = %d", mNumSharedMemories);
135 for (int i = 0; i < mNumSharedMemories; i++) {
136 mSharedMemories[i].dump();
137 }
138 ALOGD("mUpMessageQueueParcelable =========");
139 mUpMessageQueueParcelable.dump();
140 ALOGD("mDownMessageQueueParcelable =======");
141 mDownMessageQueueParcelable.dump();
142 ALOGD("mUpDataQueueParcelable ============");
143 mUpDataQueueParcelable.dump();
144 ALOGD("mDownDataQueueParcelable ==========");
145 mDownDataQueueParcelable.dump();
146 ALOGD("======================================= END");
147 }
148
149