platform.h revision 60503b74ba99bbe503c84251a96f07e96d5d41c2 
1/*
2 * Copyright (C) 2013-2014 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#ifndef QCOM_AUDIO_PLATFORM_H
18#define QCOM_AUDIO_PLATFORM_H
19
20/*
21 * Below are the devices for which is back end is same, SLIMBUS_0_RX.
22 * All these devices are handled by the internal HW codec. We can
23 * enable any one of these devices at any time
24 */
25#define AUDIO_DEVICE_OUT_ALL_CODEC_BACKEND \
26    (AUDIO_DEVICE_OUT_EARPIECE | AUDIO_DEVICE_OUT_SPEAKER | \
27     AUDIO_DEVICE_OUT_WIRED_HEADSET | AUDIO_DEVICE_OUT_WIRED_HEADPHONE)
28
29/* Sound devices specific to the platform
30 * The DEVICE_OUT_* and DEVICE_IN_* should be mapped to these sound
31 * devices to enable corresponding mixer paths
32 */
33enum {
34    SND_DEVICE_NONE = 0,
35
36    /* Playback devices */
37    SND_DEVICE_MIN,
38    SND_DEVICE_OUT_BEGIN = SND_DEVICE_MIN,
39    SND_DEVICE_OUT_HANDSET = SND_DEVICE_OUT_BEGIN,
40    SND_DEVICE_OUT_SPEAKER,
41    SND_DEVICE_OUT_SPEAKER_REVERSE,
42    SND_DEVICE_OUT_HEADPHONES,
43    SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES,
44    SND_DEVICE_OUT_VOICE_SPEAKER,
45    SND_DEVICE_OUT_VOICE_HEADPHONES,
46    SND_DEVICE_OUT_HDMI,
47    SND_DEVICE_OUT_SPEAKER_AND_HDMI,
48    SND_DEVICE_OUT_BT_SCO,
49    SND_DEVICE_OUT_BT_SCO_WB,
50    SND_DEVICE_OUT_VOICE_HANDSET_TMUS,
51    SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES,
52    SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES,
53    SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET,
54    SND_DEVICE_OUT_END,
55
56    /*
57     * Note: IN_BEGIN should be same as OUT_END because total number of devices
58     * SND_DEVICES_MAX should not exceed MAX_RX + MAX_TX devices.
59     */
60    /* Capture devices */
61    SND_DEVICE_IN_BEGIN = SND_DEVICE_OUT_END,
62    SND_DEVICE_IN_HANDSET_MIC  = SND_DEVICE_IN_BEGIN,
63    SND_DEVICE_IN_SPEAKER_MIC,
64    SND_DEVICE_IN_HEADSET_MIC,
65    SND_DEVICE_IN_HANDSET_MIC_AEC,
66    SND_DEVICE_IN_SPEAKER_MIC_AEC,
67    SND_DEVICE_IN_HEADSET_MIC_AEC,
68    SND_DEVICE_IN_VOICE_SPEAKER_MIC,
69    SND_DEVICE_IN_VOICE_HEADSET_MIC,
70    SND_DEVICE_IN_HDMI_MIC,
71    SND_DEVICE_IN_BT_SCO_MIC,
72    SND_DEVICE_IN_BT_SCO_MIC_WB,
73    SND_DEVICE_IN_CAMCORDER_MIC,
74    SND_DEVICE_IN_VOICE_DMIC_EF,
75    SND_DEVICE_IN_VOICE_DMIC_BS,
76    SND_DEVICE_IN_VOICE_DMIC_EF_TMUS,
77    SND_DEVICE_IN_VOICE_SPEAKER_DMIC_EF,
78    SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BS,
79    SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC,
80    SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC,
81    SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC,
82    SND_DEVICE_IN_VOICE_REC_MIC,
83    SND_DEVICE_IN_VOICE_REC_DMIC_EF,
84    SND_DEVICE_IN_VOICE_REC_DMIC_BS,
85    SND_DEVICE_IN_VOICE_REC_DMIC_EF_FLUENCE,
86    SND_DEVICE_IN_VOICE_REC_DMIC_BS_FLUENCE,
87    SND_DEVICE_IN_END,
88
89    SND_DEVICE_MAX = SND_DEVICE_IN_END,
90
91};
92
93#define MIXER_CARD 0
94#define SOUND_CARD 0
95
96#define DEFAULT_OUTPUT_SAMPLING_RATE 48000
97
98/*
99 * tinyAlsa library interprets period size as number of frames
100 * one frame = channel_count * sizeof (pcm sample)
101 * so if format = 16-bit PCM and channels = Stereo, frame size = 2 ch * 2 = 4 bytes
102 * DEEP_BUFFER_OUTPUT_PERIOD_SIZE = 1024 means 1024 * 4 = 4096 bytes
103 * We should take care of returning proper size when AudioFlinger queries for
104 * the buffer size of an input/output stream
105 */
106#define DEEP_BUFFER_OUTPUT_PERIOD_SIZE 960
107#define DEEP_BUFFER_OUTPUT_PERIOD_COUNT 8
108#define LOW_LATENCY_OUTPUT_PERIOD_SIZE 240
109#define LOW_LATENCY_OUTPUT_PERIOD_COUNT 2
110
111#define HDMI_MULTI_PERIOD_SIZE  336
112#define HDMI_MULTI_PERIOD_COUNT 8
113#define HDMI_MULTI_DEFAULT_CHANNEL_COUNT 6
114#define HDMI_MULTI_PERIOD_BYTES (HDMI_MULTI_PERIOD_SIZE * HDMI_MULTI_DEFAULT_CHANNEL_COUNT * 2)
115
116#define AUDIO_CAPTURE_PERIOD_DURATION_MSEC 20
117#define AUDIO_CAPTURE_PERIOD_COUNT 2
118
119#define LOW_LATENCY_CAPTURE_SAMPLE_RATE 48000
120#define LOW_LATENCY_CAPTURE_PERIOD_SIZE 240
121#define LOW_LATENCY_CAPTURE_USE_CASE 0
122
123#endif // QCOM_AUDIO_PLATFORM_H
124