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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2022 Intel Corporation
/*
* sof_sdw_rt1318 - Helpers to handle RT1318 from generic machine driver
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <sound/control.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include "sof_sdw_common.h"
static const struct snd_soc_dapm_widget rt1318_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
};
/*
* dapm routes for rt1318 will be registered dynamically according
* to the number of rt1318 used. The first two entries will be registered
* for one codec case, and the last two entries are also registered
* if two 1318s are used.
*/
static const struct snd_soc_dapm_route rt1318_map[] = {
{ "Speaker", NULL, "rt1318-1 SPOL" },
{ "Speaker", NULL, "rt1318-1 SPOR" },
{ "Speaker", NULL, "rt1318-2 SPOL" },
{ "Speaker", NULL, "rt1318-2 SPOR" },
};
static const struct snd_kcontrol_new rt1318_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
card->components = devm_kasprintf(card->dev, GFP_KERNEL,
"%s spk:rt1318",
card->components);
if (!card->components)
return -ENOMEM;
ret = snd_soc_add_card_controls(card, rt1318_controls,
ARRAY_SIZE(rt1318_controls));
if (ret) {
dev_err(card->dev, "rt1318 controls addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_new_controls(&card->dapm, rt1318_widgets,
ARRAY_SIZE(rt1318_widgets));
if (ret) {
dev_err(card->dev, "rt1318 widgets addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_add_routes(&card->dapm, rt1318_map, 2);
if (ret)
dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
return ret;
}
static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
ret = snd_soc_dapm_add_routes(&card->dapm, rt1318_map + 2, 2);
if (ret)
dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
return ret;
}
static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
ret = first_spk_init(rtd);
if (ret)
return ret;
return second_spk_init(rtd);
}
int sof_sdw_rt1318_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback)
{
/* Count amp number and do init on playback link only. */
if (!playback)
return 0;
info->amp_num++;
if (info->amp_num == 1)
dai_links->init = first_spk_init;
if (info->amp_num == 2) {
/*
* if two 1318s are in one dai link, the init function
* in this dai link will be first set for the first speaker,
* and it should be reset to initialize all speakers when
* the second speaker is found.
*/
if (dai_links->init)
dai_links->init = all_spk_init;
else
dai_links->init = second_spk_init;
}
return 0;
}
|
