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 "AudioGain.h"
22 #include "ConfigParsingUtils.h"
23 #include <cutils/log.h>
24 #include <utils/String8.h>
25
26 namespace android {
27
28 int32_t volatile AudioPatch::mNextUniqueId = 1;
29
AudioPatch(const struct audio_patch * patch,uid_t uid)30 AudioPatch::AudioPatch(const struct audio_patch *patch, uid_t uid) :
31 mHandle(static_cast<audio_patch_handle_t>(android_atomic_inc(&mNextUniqueId))),
32 mPatch(*patch),
33 mUid(uid),
34 mAfPatchHandle(0)
35 {
36 }
37
dump(int fd,int spaces,int index) const38 status_t AudioPatch::dump(int fd, int spaces, int index) const
39 {
40 const size_t SIZE = 256;
41 char buffer[SIZE];
42 String8 result;
43
44 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1);
45 result.append(buffer);
46 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle);
47 result.append(buffer);
48 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle);
49 result.append(buffer);
50 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid);
51 result.append(buffer);
52 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources);
53 result.append(buffer);
54 for (size_t i = 0; i < mPatch.num_sources; i++) {
55 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) {
56 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
57 mPatch.sources[i].id, ConfigParsingUtils::enumToString(sDeviceTypeToEnumTable,
58 ARRAY_SIZE(sDeviceTypeToEnumTable),
59 mPatch.sources[i].ext.device.type));
60 } else {
61 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "",
62 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle);
63 }
64 result.append(buffer);
65 }
66 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks);
67 result.append(buffer);
68 for (size_t i = 0; i < mPatch.num_sinks; i++) {
69 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) {
70 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
71 mPatch.sinks[i].id, ConfigParsingUtils::enumToString(sDeviceTypeToEnumTable,
72 ARRAY_SIZE(sDeviceTypeToEnumTable),
73 mPatch.sinks[i].ext.device.type));
74 } else {
75 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "",
76 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle);
77 }
78 result.append(buffer);
79 }
80
81 write(fd, result.string(), result.size());
82 return NO_ERROR;
83 }
84
addAudioPatch(audio_patch_handle_t handle,const sp<AudioPatch> & patch)85 status_t AudioPatchCollection::addAudioPatch(audio_patch_handle_t handle,
86 const sp<AudioPatch>& patch)
87 {
88 ssize_t index = indexOfKey(handle);
89
90 if (index >= 0) {
91 ALOGW("addAudioPatch() patch %d already in", handle);
92 return ALREADY_EXISTS;
93 }
94 add(handle, patch);
95 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d"
96 "sink handle %d",
97 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks,
98 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id);
99 return NO_ERROR;
100 }
101
removeAudioPatch(audio_patch_handle_t handle)102 status_t AudioPatchCollection::removeAudioPatch(audio_patch_handle_t handle)
103 {
104 ssize_t index = indexOfKey(handle);
105
106 if (index < 0) {
107 ALOGW("removeAudioPatch() patch %d not in", handle);
108 return ALREADY_EXISTS;
109 }
110 ALOGV("removeAudioPatch() handle %d af handle %d", handle, valueAt(index)->mAfPatchHandle);
111 removeItemsAt(index);
112 return NO_ERROR;
113 }
114
listAudioPatches(unsigned int * num_patches,struct audio_patch * patches) const115 status_t AudioPatchCollection::listAudioPatches(unsigned int *num_patches,
116 struct audio_patch *patches) const
117 {
118 if (num_patches == NULL || (*num_patches != 0 && patches == NULL)) {
119 return BAD_VALUE;
120 }
121 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu",
122 *num_patches, patches, size());
123 if (patches == NULL) {
124 *num_patches = 0;
125 }
126
127 size_t patchesWritten = 0;
128 size_t patchesMax = *num_patches;
129 for (size_t i = 0; i < size() && patchesWritten < patchesMax; i++) {
130 const sp<AudioPatch> patch = valueAt(i);
131 patches[patchesWritten] = patch->mPatch;
132 patches[patchesWritten++].id = patch->mHandle;
133 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d",
134 i, patch->mPatch.num_sources, patch->mPatch.num_sinks);
135 }
136 *num_patches = size();
137
138 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches);
139 return NO_ERROR;
140 }
141
dump(int fd) const142 status_t AudioPatchCollection::dump(int fd) const
143 {
144 const size_t SIZE = 256;
145 char buffer[SIZE];
146 snprintf(buffer, SIZE, "\nAudio Patches:\n");
147 write(fd, buffer, strlen(buffer));
148 for (size_t i = 0; i < size(); i++) {
149 valueAt(i)->dump(fd, 2, i);
150 }
151 return NO_ERROR;
152 }
153
154 }; // namespace android
155