AudioPatch.cpp revision 98cc191247388132b6fd8a4ecd07abd6e4c5a0ed 
1/*
2 * Copyright (C) 2015 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 "APM::AudioPatch"
18//#define LOG_NDEBUG 0
19
20#include "AudioPatch.h"
21#include "ConfigParsingUtils.h"
22#include <cutils/log.h>
23#include <utils/String8.h>
24
25namespace android {
26
27int32_t volatile AudioPatch::mNextUniqueId = 1;
28
29AudioPatch::AudioPatch(const struct audio_patch *patch, uid_t uid) :
30    mHandle(static_cast<audio_patch_handle_t>(android_atomic_inc(&mNextUniqueId))),
31    mPatch(*patch),
32    mUid(uid),
33    mAfPatchHandle(0)
34{
35}
36
37status_t AudioPatch::dump(int fd, int spaces, int index) const
38{
39    const size_t SIZE = 256;
40    char buffer[SIZE];
41    String8 result;
42
43    snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1);
44    result.append(buffer);
45    snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle);
46    result.append(buffer);
47    snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle);
48    result.append(buffer);
49    snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid);
50    result.append(buffer);
51    snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources);
52    result.append(buffer);
53    for (size_t i = 0; i < mPatch.num_sources; i++) {
54        if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) {
55            snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
56                     mPatch.sources[i].id, ConfigParsingUtils::enumToString(sDeviceNameToEnumTable,
57                                                        ARRAY_SIZE(sDeviceNameToEnumTable),
58                                                        mPatch.sources[i].ext.device.type));
59        } else {
60            snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "",
61                     mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle);
62        }
63        result.append(buffer);
64    }
65    snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks);
66    result.append(buffer);
67    for (size_t i = 0; i < mPatch.num_sinks; i++) {
68        if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) {
69            snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
70                     mPatch.sinks[i].id, ConfigParsingUtils::enumToString(sDeviceNameToEnumTable,
71                                                        ARRAY_SIZE(sDeviceNameToEnumTable),
72                                                        mPatch.sinks[i].ext.device.type));
73        } else {
74            snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "",
75                     mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle);
76        }
77        result.append(buffer);
78    }
79
80    write(fd, result.string(), result.size());
81    return NO_ERROR;
82}
83
84}; // namespace android
85