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 "TypeConverter.h"
22
23 #include <log/log.h>
24 #include <utils/String8.h>
25
26 namespace android {
27
AudioPatch(const struct audio_patch * patch,uid_t uid)28 AudioPatch::AudioPatch(const struct audio_patch *patch, uid_t uid) :
29 mPatch(*patch),
30 mHandle(HandleGenerator<audio_patch_handle_t>::getNextHandle()),
31 mUid(uid)
32 {
33 }
34
dumpPatchEndpoints(String8 * dst,int spaces,const char * prefix,int count,const audio_port_config * cfgs)35 static void dumpPatchEndpoints(
36 String8 *dst, int spaces, const char *prefix, int count, const audio_port_config *cfgs)
37 {
38 for (int i = 0; i < count; ++i) {
39 const audio_port_config &cfg = cfgs[i];
40 dst->appendFormat("%*s [%s %d] ", spaces, "", prefix, i + 1);
41 if (cfg.type == AUDIO_PORT_TYPE_DEVICE) {
42 dst->appendFormat("Device ID %d %s", cfg.id, toString(cfg.ext.device.type).c_str());
43 } else {
44 dst->appendFormat("Mix ID %d I/O handle %d", cfg.id, cfg.ext.mix.handle);
45 }
46 dst->append("\n");
47 }
48 }
49
dump(String8 * dst,int spaces,int index) const50 void AudioPatch::dump(String8 *dst, int spaces, int index) const
51 {
52 dst->appendFormat("%*sPatch %d: owner uid %4d, handle %2d, af handle %2d\n",
53 spaces, "", index + 1, mUid, mHandle, mAfPatchHandle);
54 dumpPatchEndpoints(dst, spaces, "src ", mPatch.num_sources, mPatch.sources);
55 dumpPatchEndpoints(dst, spaces, "sink", mPatch.num_sinks, mPatch.sinks);
56 }
57
addAudioPatch(audio_patch_handle_t handle,const sp<AudioPatch> & patch)58 status_t AudioPatchCollection::addAudioPatch(audio_patch_handle_t handle,
59 const sp<AudioPatch>& patch)
60 {
61 ssize_t index = indexOfKey(handle);
62
63 if (index >= 0) {
64 ALOGW("addAudioPatch() patch %d already in", handle);
65 return ALREADY_EXISTS;
66 }
67 add(handle, patch);
68 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d"
69 "sink handle %d",
70 handle, patch->getAfHandle(), patch->mPatch.num_sources, patch->mPatch.num_sinks,
71 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id);
72 return NO_ERROR;
73 }
74
removeAudioPatch(audio_patch_handle_t handle)75 status_t AudioPatchCollection::removeAudioPatch(audio_patch_handle_t handle)
76 {
77 ssize_t index = indexOfKey(handle);
78
79 if (index < 0) {
80 ALOGW("removeAudioPatch() patch %d not in", handle);
81 return ALREADY_EXISTS;
82 }
83 ALOGV("removeAudioPatch() handle %d af handle %d", handle, valueAt(index)->getAfHandle());
84 removeItemsAt(index);
85 return NO_ERROR;
86 }
87
listAudioPatches(unsigned int * num_patches,struct audio_patch * patches) const88 status_t AudioPatchCollection::listAudioPatches(unsigned int *num_patches,
89 struct audio_patch *patches) const
90 {
91 if (num_patches == NULL || (*num_patches != 0 && patches == NULL)) {
92 return BAD_VALUE;
93 }
94 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu",
95 *num_patches, patches, size());
96 if (patches == NULL) {
97 *num_patches = 0;
98 }
99
100 size_t patchesWritten = 0;
101 size_t patchesMax = *num_patches;
102 *num_patches = 0;
103 for (size_t patchIndex = 0; patchIndex < size(); patchIndex++) {
104 // do not report patches with AUDIO_DEVICE_IN_STUB as source or
105 // AUDIO_DEVICE_OUT_STUB as sink as those devices are used by stub HALs by convention
106 const sp<AudioPatch> patch = valueAt(patchIndex);
107 bool skip = false;
108 for (size_t srcIndex = 0; srcIndex < patch->mPatch.num_sources && !skip; srcIndex++) {
109 if (patch->mPatch.sources[srcIndex].type == AUDIO_PORT_TYPE_DEVICE &&
110 patch->mPatch.sources[srcIndex].ext.device.type == AUDIO_DEVICE_IN_STUB) {
111 skip = true;
112 }
113 }
114 for (size_t sinkIndex = 0; sinkIndex < patch->mPatch.num_sinks && !skip; sinkIndex++) {
115 if (patch->mPatch.sinks[sinkIndex].type == AUDIO_PORT_TYPE_DEVICE &&
116 patch->mPatch.sinks[sinkIndex].ext.device.type == AUDIO_DEVICE_OUT_STUB) {
117 skip = true;
118 }
119 }
120 if (skip) {
121 continue; // to next audio patch
122 }
123 if (patchesWritten < patchesMax) {
124 patches[patchesWritten] = patch->mPatch;
125 patches[patchesWritten++].id = patch->getHandle();
126 }
127 (*num_patches)++;
128 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d",
129 patchIndex, patch->mPatch.num_sources, patch->mPatch.num_sinks);
130 }
131
132 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches);
133 return NO_ERROR;
134 }
135
dump(String8 * dst) const136 void AudioPatchCollection::dump(String8 *dst) const
137 {
138 dst->append("\nAudio Patches:\n");
139 for (size_t i = 0; i < size(); i++) {
140 valueAt(i)->dump(dst, 2, i);
141 }
142 }
143
144 } // namespace android
145