1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <soc/nhlt.h>
#include <string.h>
static const struct nhlt_format_config dmic_2ch_cfg[] = {
/* 48 KHz 16-bits per sample. */
{
.num_channels = 2,
.sample_freq_khz = 48,
.container_bits_per_sample = 16,
.valid_bits_per_sample = 16,
.speaker_mask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
.settings_file = "dmic-2ch-48khz-16b.bin",
},
/* 48 KHz 32-bits per sample. */
{
.num_channels = 2,
.sample_freq_khz = 48,
.container_bits_per_sample = 32,
.valid_bits_per_sample = 32,
.speaker_mask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
.settings_file = "dmic-2ch-48khz-32b.bin",
},
};
static const struct nhlt_format_config dmic_4ch_cfg[] = {
/* 48 KHz 16-bits per sample. */
{
.num_channels = 4,
.sample_freq_khz = 48,
.container_bits_per_sample = 16,
.valid_bits_per_sample = 16,
.speaker_mask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
.settings_file = "dmic-4ch-48khz-16b.bin",
},
/* 48 KHz 32-bits per sample. */
{
.num_channels = 4,
.sample_freq_khz = 48,
.container_bits_per_sample = 32,
.valid_bits_per_sample = 32,
.speaker_mask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
.settings_file = "dmic-4ch-48khz-32b.bin",
},
};
int nhlt_soc_add_dmic_array(struct nhlt *nhlt, int num_channels)
{
struct nhlt_endpoint *endp;
struct nhlt_dmic_array_config mic_config;
const struct nhlt_format_config *formats;
size_t num_formats;
if (num_channels != 2 && num_channels != 4)
return -1;
endp = nhlt_soc_add_endpoint(nhlt, AUDIO_LINK_DMIC, AUDIO_DEV_DMIC,
NHLT_DIR_CAPTURE);
if (endp == NULL)
return -1;
memset(&mic_config, 0, sizeof(mic_config));
mic_config.tdm_config.config_type = NHLT_TDM_MIC_ARRAY;
switch (num_channels) {
case 2:
formats = dmic_2ch_cfg;
num_formats = ARRAY_SIZE(dmic_2ch_cfg);
mic_config.array_type = NHLT_MIC_ARRAY_2CH_SMALL;
break;
case 4:
formats = dmic_4ch_cfg;
num_formats = ARRAY_SIZE(dmic_4ch_cfg);
mic_config.array_type = NHLT_MIC_ARRAY_4CH_L_SHAPED;
break;
}
if (nhlt_endpoint_append_config(endp, &mic_config, sizeof(mic_config)))
return -1;
return nhlt_endpoint_add_formats(endp, formats, num_formats);
}
|
