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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// SPDX-License-Identifier: GPL-2.0-only
// This file incorporates work covered by the following copyright notice:
// Copyright (c) 2020 Intel Corporation
// Copyright (c) 2024 Advanced Micro Devices, Inc.
//
// soc_sdw_maxim - Helpers to handle maxim codecs
// codec devices 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 <sound/soc_sdw_utils.h>
static int maxim_part_id;
#define SOC_SDW_PART_ID_MAX98363 0x8363
#define SOC_SDW_PART_ID_MAX98373 0x8373
static const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
{ "Left Spk", NULL, "Left BE_OUT" },
{ "Right Spk", NULL, "Right BE_OUT" },
};
int asoc_sdw_maxim_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
{
struct snd_soc_card *card = rtd->card;
int ret;
card->components = devm_kasprintf(card->dev, GFP_KERNEL,
"%s spk:mx%04x",
card->components, maxim_part_id);
if (!card->components)
return -ENOMEM;
dev_dbg(card->dev, "soundwire maxim card components assigned : %s\n",
card->components);
ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes, 2);
if (ret)
dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_maxim_spk_rtd_init, SND_SOC_SDW_UTILS);
static int asoc_sdw_mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai;
int ret;
int j;
/* set spk pin by playback only */
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
return 0;
cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
for_each_rtd_codec_dais(rtd, j, codec_dai) {
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(cpu_dai->component);
char pin_name[16];
snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",
codec_dai->component->name_prefix);
if (enable)
ret = snd_soc_dapm_enable_pin(dapm, pin_name);
else
ret = snd_soc_dapm_disable_pin(dapm, pin_name);
if (!ret)
snd_soc_dapm_sync(dapm);
}
return 0;
}
static int asoc_sdw_mx8373_prepare(struct snd_pcm_substream *substream)
{
int ret;
/* according to soc_pcm_prepare dai link prepare is called first */
ret = asoc_sdw_prepare(substream);
if (ret < 0)
return ret;
return asoc_sdw_mx8373_enable_spk_pin(substream, true);
}
static int asoc_sdw_mx8373_hw_free(struct snd_pcm_substream *substream)
{
int ret;
/* according to soc_pcm_hw_free dai link free is called first */
ret = asoc_sdw_hw_free(substream);
if (ret < 0)
return ret;
return asoc_sdw_mx8373_enable_spk_pin(substream, false);
}
static const struct snd_soc_ops max_98373_sdw_ops = {
.startup = asoc_sdw_startup,
.prepare = asoc_sdw_mx8373_prepare,
.trigger = asoc_sdw_trigger,
.hw_params = asoc_sdw_hw_params,
.hw_free = asoc_sdw_mx8373_hw_free,
.shutdown = asoc_sdw_shutdown,
};
static int asoc_sdw_mx8373_sdw_late_probe(struct snd_soc_card *card)
{
struct snd_soc_dapm_context *dapm = &card->dapm;
/* Disable Left and Right Spk pin after boot */
snd_soc_dapm_disable_pin(dapm, "Left Spk");
snd_soc_dapm_disable_pin(dapm, "Right Spk");
return snd_soc_dapm_sync(dapm);
}
int asoc_sdw_maxim_init(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_links,
struct asoc_sdw_codec_info *info,
bool playback)
{
info->amp_num++;
maxim_part_id = info->part_id;
switch (maxim_part_id) {
case SOC_SDW_PART_ID_MAX98363:
/* Default ops are set in function init_dai_link.
* called as part of function create_sdw_dailink
*/
break;
case SOC_SDW_PART_ID_MAX98373:
info->codec_card_late_probe = asoc_sdw_mx8373_sdw_late_probe;
dai_links->ops = &max_98373_sdw_ops;
break;
default:
dev_err(card->dev, "Invalid maxim_part_id %#x\n", maxim_part_id);
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL_NS(asoc_sdw_maxim_init, SND_SOC_SDW_UTILS);
|
