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 "AAudio"
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
31using android::NO_ERROR;
32using android::status_t;
33using android::Parcel;
34using android::Parcelable;
35
36using namespace aaudio;
37
38/**
39 * Container for information about the message queues plus
40 * general stream information needed by AAudio clients.
41 * It contains no addresses, just sizes, offsets and file descriptors for
42 * shared memory that can be passed through Binder.
43 */
44AudioEndpointParcelable::AudioEndpointParcelable() {}
45
46AudioEndpointParcelable::~AudioEndpointParcelable() {}
47
48/**
49 * Add the file descriptor to the table.
50 * @return index in table or negative error
51 */
52int32_t AudioEndpointParcelable::addFileDescriptor(int fd, int32_t sizeInBytes) {
53    if (mNumSharedMemories >= MAX_SHARED_MEMORIES) {
54        return AAUDIO_ERROR_OUT_OF_RANGE;
55    }
56    int32_t index = mNumSharedMemories++;
57    mSharedMemories[index].setup(fd, sizeInBytes);
58    return index;
59}
60
61/**
62 * The read and write must be symmetric.
63 */
64status_t AudioEndpointParcelable::writeToParcel(Parcel* parcel) const {
65    parcel->writeInt32(mNumSharedMemories);
66    for (int i = 0; i < mNumSharedMemories; i++) {
67        mSharedMemories[i].writeToParcel(parcel);
68    }
69    mUpMessageQueueParcelable.writeToParcel(parcel);
70    mDownMessageQueueParcelable.writeToParcel(parcel);
71    mUpDataQueueParcelable.writeToParcel(parcel);
72    mDownDataQueueParcelable.writeToParcel(parcel);
73    return NO_ERROR; // TODO check for errors above
74}
75
76status_t AudioEndpointParcelable::readFromParcel(const Parcel* parcel) {
77    parcel->readInt32(&mNumSharedMemories);
78    for (int i = 0; i < mNumSharedMemories; i++) {
79        mSharedMemories[i].readFromParcel(parcel);
80    }
81    mUpMessageQueueParcelable.readFromParcel(parcel);
82    mDownMessageQueueParcelable.readFromParcel(parcel);
83    mUpDataQueueParcelable.readFromParcel(parcel);
84    mDownDataQueueParcelable.readFromParcel(parcel);
85    return NO_ERROR; // TODO check for errors above
86}
87
88aaudio_result_t AudioEndpointParcelable::resolve(EndpointDescriptor *descriptor) {
89    aaudio_result_t result = mUpMessageQueueParcelable.resolve(mSharedMemories,
90                                                           &descriptor->upMessageQueueDescriptor);
91    if (result != AAUDIO_OK) return result;
92    result = mDownMessageQueueParcelable.resolve(mSharedMemories,
93                                        &descriptor->downMessageQueueDescriptor);
94    if (result != AAUDIO_OK) return result;
95
96    result = mDownDataQueueParcelable.resolve(mSharedMemories,
97                                              &descriptor->dataQueueDescriptor);
98    return result;
99}
100
101aaudio_result_t AudioEndpointParcelable::close() {
102    int err = 0;
103    for (int i = 0; i < mNumSharedMemories; i++) {
104        int lastErr = mSharedMemories[i].close();
105        if (lastErr < 0) err = lastErr;
106    }
107    return AAudioConvert_androidToAAudioResult(err);
108}
109
110aaudio_result_t AudioEndpointParcelable::validate() {
111    aaudio_result_t result;
112    if (mNumSharedMemories < 0 || mNumSharedMemories >= MAX_SHARED_MEMORIES) {
113        ALOGE("AudioEndpointParcelable invalid mNumSharedMemories = %d", mNumSharedMemories);
114        return AAUDIO_ERROR_INTERNAL;
115    }
116    for (int i = 0; i < mNumSharedMemories; i++) {
117        result = mSharedMemories[i].validate();
118        if (result != AAUDIO_OK) {
119            ALOGE("AudioEndpointParcelable invalid mSharedMemories[%d] = %d", i, result);
120            return result;
121        }
122    }
123    if ((result = mUpMessageQueueParcelable.validate()) != AAUDIO_OK) {
124        ALOGE("AudioEndpointParcelable invalid mUpMessageQueueParcelable = %d", result);
125        return result;
126    }
127    if ((result = mDownMessageQueueParcelable.validate()) != AAUDIO_OK) {
128        ALOGE("AudioEndpointParcelable invalid mDownMessageQueueParcelable = %d", result);
129        return result;
130    }
131    if ((result = mUpDataQueueParcelable.validate()) != AAUDIO_OK) {
132        ALOGE("AudioEndpointParcelable invalid mUpDataQueueParcelable = %d", result);
133        return result;
134    }
135    if ((result = mDownDataQueueParcelable.validate()) != AAUDIO_OK) {
136        ALOGE("AudioEndpointParcelable invalid mDownDataQueueParcelable = %d", result);
137        return result;
138    }
139    return AAUDIO_OK;
140}
141
142void AudioEndpointParcelable::dump() {
143    ALOGD("AudioEndpointParcelable ======================================= BEGIN");
144    ALOGD("AudioEndpointParcelable mNumSharedMemories = %d", mNumSharedMemories);
145    for (int i = 0; i < mNumSharedMemories; i++) {
146        mSharedMemories[i].dump();
147    }
148    ALOGD("AudioEndpointParcelable mUpMessageQueueParcelable =========");
149    mUpMessageQueueParcelable.dump();
150    ALOGD("AudioEndpointParcelable mDownMessageQueueParcelable =======");
151    mDownMessageQueueParcelable.dump();
152    ALOGD("AudioEndpointParcelable mUpDataQueueParcelable ============");
153    mUpDataQueueParcelable.dump();
154    ALOGD("AudioEndpointParcelable mDownDataQueueParcelable ==========");
155    mDownDataQueueParcelable.dump();
156    ALOGD("AudioEndpointParcelable ======================================= END");
157}
158
159