PatchPanel.h revision 1c333e252cbca3337c1bedbc57a005f3b7d23fdb 
1/*
2**
3** Copyright 2014, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#ifndef INCLUDING_FROM_AUDIOFLINGER_H
19    #error This header file should only be included from AudioFlinger.h
20#endif
21
22class PatchPanel : public RefBase {
23public:
24    PatchPanel(const sp<AudioFlinger>& audioFlinger);
25    virtual ~PatchPanel();
26
27    /* List connected audio ports and their attributes */
28    status_t listAudioPorts(unsigned int *num_ports,
29                                    struct audio_port *ports);
30
31    /* Get supported attributes for a given audio port */
32    status_t getAudioPort(struct audio_port *port);
33
34    /* Create a patch between several source and sink ports */
35    status_t createAudioPatch(const struct audio_patch *patch,
36                                       audio_patch_handle_t *handle);
37
38    /* Release a patch */
39    status_t releaseAudioPatch(audio_patch_handle_t handle);
40
41    /* List connected audio devices and they attributes */
42    status_t listAudioPatches(unsigned int *num_patches,
43                                      struct audio_patch *patches);
44
45    /* Set audio port configuration */
46    status_t setAudioPortConfig(const struct audio_port_config *config);
47
48    class Patch {
49    public:
50        Patch(const struct audio_patch *patch) :
51            mAudioPatch(*patch), mHandle(0), mHalHandle(0) {}
52
53        struct audio_patch mAudioPatch;
54        audio_patch_handle_t mHandle;
55        audio_patch_handle_t mHalHandle;
56    };
57private:
58    const wp<AudioFlinger>  mAudioFlinger;
59    SortedVector <Patch *> mPatches;
60};
61