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 "RingBufferParcelable"
18 //#define LOG_NDEBUG 0
19 #include <utils/Log.h>
20
21 #include <stdint.h>
22
23 #include <binder/Parcelable.h>
24 #include <utility/AAudioUtilities.h>
25
26 #include "binding/AAudioServiceDefinitions.h"
27 #include "binding/SharedRegionParcelable.h"
28 #include "binding/RingBufferParcelable.h"
29
30 using namespace aaudio;
31
RingBufferParcelable(const RingBuffer & parcelable)32 RingBufferParcelable::RingBufferParcelable(const RingBuffer& parcelable)
33 : mReadCounterParcelable(parcelable.readCounterParcelable),
34 mWriteCounterParcelable(parcelable.writeCounterParcelable),
35 mDataParcelable(parcelable.dataParcelable),
36 mBytesPerFrame(parcelable.bytesPerFrame),
37 mFramesPerBurst(parcelable.framesPerBurst),
38 mCapacityInFrames(parcelable.capacityInFrames),
39 mFlags(static_cast<RingbufferFlags>(parcelable.flags)) {
40 static_assert(sizeof(mFlags) == sizeof(parcelable.flags));
41 }
42
parcelable() const43 RingBuffer RingBufferParcelable::parcelable() const {
44 RingBuffer result;
45 result.readCounterParcelable = mReadCounterParcelable.parcelable();
46 result.writeCounterParcelable = mWriteCounterParcelable.parcelable();
47 result.dataParcelable = mDataParcelable.parcelable();
48 result.bytesPerFrame = mBytesPerFrame;
49 result.framesPerBurst = mFramesPerBurst;
50 result.capacityInFrames = mCapacityInFrames;
51 static_assert(sizeof(mFlags) == sizeof(result.flags));
52 result.flags = static_cast<int32_t>(mFlags);
53 return result;
54 }
55
56 // TODO This assumes that all three use the same SharedMemoryParcelable
setupMemory(int32_t sharedMemoryIndex,int32_t dataMemoryOffset,int32_t dataSizeInBytes,int32_t readCounterOffset,int32_t writeCounterOffset,int32_t counterSizeBytes)57 void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
58 int32_t dataMemoryOffset,
59 int32_t dataSizeInBytes,
60 int32_t readCounterOffset,
61 int32_t writeCounterOffset,
62 int32_t counterSizeBytes) {
63 mReadCounterParcelable.setup({sharedMemoryIndex, readCounterOffset, counterSizeBytes});
64 mWriteCounterParcelable.setup({sharedMemoryIndex, writeCounterOffset, counterSizeBytes});
65 mDataParcelable.setup({sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes});
66 }
67
setupMemory(int32_t sharedMemoryIndex,int32_t dataMemoryOffset,int32_t dataSizeInBytes)68 void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
69 int32_t dataMemoryOffset,
70 int32_t dataSizeInBytes) {
71 mReadCounterParcelable.setup({sharedMemoryIndex, 0, 0});
72 mWriteCounterParcelable.setup({sharedMemoryIndex, 0, 0});
73 mDataParcelable.setup({sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes});
74 }
75
setupMemory(const SharedRegionParcelable::MemoryInfoTuple & dataMemoryInfo,const SharedRegionParcelable::MemoryInfoTuple & readCounterInfo,const SharedRegionParcelable::MemoryInfoTuple & writeCounterInfo)76 void RingBufferParcelable::setupMemory(
77 const SharedRegionParcelable::MemoryInfoTuple& dataMemoryInfo,
78 const SharedRegionParcelable::MemoryInfoTuple& readCounterInfo,
79 const SharedRegionParcelable::MemoryInfoTuple& writeCounterInfo) {
80 mReadCounterParcelable.setup(readCounterInfo);
81 mWriteCounterParcelable.setup(writeCounterInfo);
82 mDataParcelable.setup(dataMemoryInfo);
83 }
84
getBytesPerFrame() const85 int32_t RingBufferParcelable::getBytesPerFrame() const {
86 return mBytesPerFrame;
87 }
88
setBytesPerFrame(int32_t bytesPerFrame)89 void RingBufferParcelable::setBytesPerFrame(int32_t bytesPerFrame) {
90 mBytesPerFrame = bytesPerFrame;
91 }
92
getFramesPerBurst() const93 int32_t RingBufferParcelable::getFramesPerBurst() const {
94 return mFramesPerBurst;
95 }
96
setFramesPerBurst(int32_t framesPerBurst)97 void RingBufferParcelable::setFramesPerBurst(int32_t framesPerBurst) {
98 mFramesPerBurst = framesPerBurst;
99 }
100
getCapacityInFrames() const101 int32_t RingBufferParcelable::getCapacityInFrames() const {
102 return mCapacityInFrames;
103 }
104
setCapacityInFrames(int32_t capacityInFrames)105 void RingBufferParcelable::setCapacityInFrames(int32_t capacityInFrames) {
106 mCapacityInFrames = capacityInFrames;
107 }
108
resolve(SharedMemoryParcelable * memoryParcels,RingBufferDescriptor * descriptor)109 aaudio_result_t RingBufferParcelable::resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor) {
110 aaudio_result_t result;
111
112 result = mReadCounterParcelable.resolve(memoryParcels,
113 (void **) &descriptor->readCounterAddress);
114 if (result != AAUDIO_OK) {
115 return result;
116 }
117
118 result = mWriteCounterParcelable.resolve(memoryParcels,
119 (void **) &descriptor->writeCounterAddress);
120 if (result != AAUDIO_OK) {
121 return result;
122 }
123
124 result = mDataParcelable.resolve(memoryParcels, (void **) &descriptor->dataAddress);
125 if (result != AAUDIO_OK) {
126 return result;
127 }
128
129 descriptor->bytesPerFrame = mBytesPerFrame;
130 descriptor->framesPerBurst = mFramesPerBurst;
131 descriptor->capacityInFrames = mCapacityInFrames;
132 descriptor->flags = mFlags;
133 return AAUDIO_OK;
134 }
135
updateMemory(const RingBufferParcelable & parcelable,const std::map<int32_t,int32_t> & memoryIndexMap)136 void RingBufferParcelable::updateMemory(const RingBufferParcelable& parcelable,
137 const std::map<int32_t, int32_t>& memoryIndexMap) {
138 setupMemory(parcelable.mDataParcelable.getMemoryInfo(&memoryIndexMap),
139 parcelable.mReadCounterParcelable.getMemoryInfo(&memoryIndexMap),
140 parcelable.mWriteCounterParcelable.getMemoryInfo(&memoryIndexMap));
141 setBytesPerFrame(parcelable.getBytesPerFrame());
142 setFramesPerBurst(parcelable.getFramesPerBurst());
143 setCapacityInFrames(parcelable.getCapacityInFrames());
144 }
145
validate() const146 aaudio_result_t RingBufferParcelable::validate() const {
147 if (mCapacityInFrames < 0 || mCapacityInFrames >= 32 * 1024) {
148 ALOGE("invalid mCapacityInFrames = %d", mCapacityInFrames);
149 return AAUDIO_ERROR_INTERNAL;
150 }
151 if (mBytesPerFrame < 0 || mBytesPerFrame >= 256) {
152 ALOGE("invalid mBytesPerFrame = %d", mBytesPerFrame);
153 return AAUDIO_ERROR_INTERNAL;
154 }
155 if (mFramesPerBurst < 0 || mFramesPerBurst >= 16 * 1024) {
156 ALOGE("invalid mFramesPerBurst = %d", mFramesPerBurst);
157 return AAUDIO_ERROR_INTERNAL;
158 }
159 return AAUDIO_OK;
160 }
161
dump()162 void RingBufferParcelable::dump() {
163 ALOGD("mCapacityInFrames = %d ---------", mCapacityInFrames);
164 if (mCapacityInFrames > 0) {
165 ALOGD("mBytesPerFrame = %d", mBytesPerFrame);
166 ALOGD("mFramesPerBurst = %d", mFramesPerBurst);
167 ALOGD("mFlags = %u", mFlags);
168 mReadCounterParcelable.dump();
169 mWriteCounterParcelable.dump();
170 mDataParcelable.dump();
171 }
172 }
173