AudioInputDescriptor.cpp revision 322b4d25387a04c9afebe998326d005bbdf17ede 
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::AudioInputDescriptor"
18//#define LOG_NDEBUG 0
19
20#include "AudioInputDescriptor.h"
21#include "IOProfile.h"
22#include "AudioGain.h"
23#include "HwModule.h"
24#include <media/AudioPolicy.h>
25#include <policy.h>
26
27namespace android {
28
29AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile)
30    : mIoHandle(0),
31      mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), mRefCount(0),
32      mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false), mId(0)
33{
34    if (profile != NULL) {
35        mSamplingRate = profile->pickSamplingRate();
36        mFormat = profile->pickFormat();
37        mChannelMask = profile->pickChannelMask();
38        if (profile->mGains.size() > 0) {
39            profile->mGains[0]->getDefaultConfig(&mGain);
40        }
41    }
42}
43
44void AudioInputDescriptor::setIoHandle(audio_io_handle_t ioHandle)
45{
46    mId = AudioPort::getNextUniqueId();
47    mIoHandle = ioHandle;
48}
49
50audio_module_handle_t AudioInputDescriptor::getModuleHandle() const
51{
52    if (mProfile == 0) {
53        return 0;
54    }
55    return mProfile->getModuleHandle();
56}
57
58audio_port_handle_t AudioInputDescriptor::getId() const
59{
60    return mId;
61}
62
63void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
64                                             const struct audio_port_config *srcConfig) const
65{
66    ALOG_ASSERT(mProfile != 0,
67                "toAudioPortConfig() called on input with null profile %d", mIoHandle);
68    dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK|
69                            AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN;
70    if (srcConfig != NULL) {
71        dstConfig->config_mask |= srcConfig->config_mask;
72    }
73
74    AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig);
75
76    dstConfig->id = mId;
77    dstConfig->role = AUDIO_PORT_ROLE_SINK;
78    dstConfig->type = AUDIO_PORT_TYPE_MIX;
79    dstConfig->ext.mix.hw_module = getModuleHandle();
80    dstConfig->ext.mix.handle = mIoHandle;
81    dstConfig->ext.mix.usecase.source = mInputSource;
82}
83
84void AudioInputDescriptor::toAudioPort(struct audio_port *port) const
85{
86    ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle);
87
88    mProfile->toAudioPort(port);
89    port->id = mId;
90    toAudioPortConfig(&port->active_config);
91    port->ext.mix.hw_module = getModuleHandle();
92    port->ext.mix.handle = mIoHandle;
93    port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL;
94}
95
96status_t AudioInputDescriptor::dump(int fd)
97{
98    const size_t SIZE = 256;
99    char buffer[SIZE];
100    String8 result;
101
102    snprintf(buffer, SIZE, " ID: %d\n", getId());
103    result.append(buffer);
104    snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
105    result.append(buffer);
106    snprintf(buffer, SIZE, " Format: %d\n", mFormat);
107    result.append(buffer);
108    snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
109    result.append(buffer);
110    snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
111    result.append(buffer);
112    snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
113    result.append(buffer);
114    snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount);
115    result.append(buffer);
116
117    write(fd, result.string(), result.size());
118
119    return NO_ERROR;
120}
121
122bool AudioInputCollection::isSourceActive(audio_source_t source) const
123{
124    for (size_t i = 0; i < size(); i++) {
125        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
126        if (inputDescriptor->mRefCount == 0) {
127            continue;
128        }
129        if (inputDescriptor->mInputSource == (int)source) {
130            return true;
131        }
132    }
133    return false;
134}
135
136sp<AudioInputDescriptor> AudioInputCollection::getInputFromId(audio_port_handle_t id) const
137{
138    sp<AudioInputDescriptor> inputDesc = NULL;
139    for (size_t i = 0; i < size(); i++) {
140        inputDesc = valueAt(i);
141        if (inputDesc->getId() == id) {
142            break;
143        }
144    }
145    return inputDesc;
146}
147
148uint32_t AudioInputCollection::activeInputsCount() const
149{
150    uint32_t count = 0;
151    for (size_t i = 0; i < size(); i++) {
152        const sp<AudioInputDescriptor>  desc = valueAt(i);
153        if (desc->mRefCount > 0) {
154            count++;
155        }
156    }
157    return count;
158}
159
160audio_io_handle_t AudioInputCollection::getActiveInput(bool ignoreVirtualInputs)
161{
162    for (size_t i = 0; i < size(); i++) {
163        const sp<AudioInputDescriptor>  input_descriptor = valueAt(i);
164        if ((input_descriptor->mRefCount > 0)
165                && (!ignoreVirtualInputs || !is_virtual_input_device(input_descriptor->mDevice))) {
166            return keyAt(i);
167        }
168    }
169    return 0;
170}
171
172audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const
173{
174    sp<AudioInputDescriptor> inputDesc = valueFor(handle);
175    audio_devices_t devices = inputDesc->mProfile->mSupportedDevices.types();
176    return devices;
177}
178
179status_t AudioInputCollection::dump(int fd) const
180{
181    const size_t SIZE = 256;
182    char buffer[SIZE];
183
184    snprintf(buffer, SIZE, "\nInputs dump:\n");
185    write(fd, buffer, strlen(buffer));
186    for (size_t i = 0; i < size(); i++) {
187        snprintf(buffer, SIZE, "- Input %d dump:\n", keyAt(i));
188        write(fd, buffer, strlen(buffer));
189        valueAt(i)->dump(fd);
190    }
191
192    return NO_ERROR;
193}
194
195}; //namespace android
196