summaryrefslogtreecommitdiff
path: root/sound/soc/intel/avs/boards/max98373.c
blob: cc7dfdf72083221cb4ab7d0ec687c5c6983a32cc (plain)
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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2022 Intel Corporation. All rights reserved.
//
// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
//

#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include "../utils.h"

#define MAX98373_DEV0_NAME	"i2c-MX98373:00"
#define MAX98373_DEV1_NAME	"i2c-MX98373:01"
#define MAX98373_CODEC_NAME	"max98373-aif1"

static struct snd_soc_codec_conf card_codec_conf[] = {
	{
		.dlc = COMP_CODEC_CONF(MAX98373_DEV0_NAME),
		.name_prefix = "Right",
	},
	{
		.dlc = COMP_CODEC_CONF(MAX98373_DEV1_NAME),
		.name_prefix = "Left",
	},
};

static const struct snd_kcontrol_new card_controls[] = {
	SOC_DAPM_PIN_SWITCH("Left Spk"),
	SOC_DAPM_PIN_SWITCH("Right Spk"),
};

static const struct snd_soc_dapm_widget card_widgets[] = {
	SND_SOC_DAPM_SPK("Left Spk", NULL),
	SND_SOC_DAPM_SPK("Right Spk", NULL),
};

static const struct snd_soc_dapm_route card_base_routes[] = {
	{ "Left Spk", NULL, "Left BE_OUT" },
	{ "Right Spk", NULL, "Right BE_OUT" },
};

static int
avs_max98373_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate, *channels;
	struct snd_mask *fmt;

	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

	/* The ADSP will convert the FE rate to 48k, stereo */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP0 to 16 bit */
	snd_mask_none(fmt);
	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
	return 0;
}

static int avs_max98373_hw_params(struct snd_pcm_substream *substream,
				  struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *codec_dai;
	int ret, i;

	for_each_rtd_codec_dais(runtime, i, codec_dai) {
		if (!strcmp(codec_dai->component->name, MAX98373_DEV0_NAME)) {
			ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16);
			if (ret < 0) {
				dev_err(runtime->dev, "DEV0 TDM slot err:%d\n", ret);
				return ret;
			}
		}
		if (!strcmp(codec_dai->component->name, MAX98373_DEV1_NAME)) {
			ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xC0, 3, 8, 16);
			if (ret < 0) {
				dev_err(runtime->dev, "DEV1 TDM slot err:%d\n", ret);
				return ret;
			}
		}
	}

	return 0;
}

static const struct snd_soc_ops avs_max98373_ops = {
	.hw_params = avs_max98373_hw_params,
};

static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
			       int tdm_slot, struct snd_soc_dai_link **dai_link)
{
	struct snd_soc_dai_link_component *platform;
	struct snd_soc_dai_link *dl;

	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
	if (!dl || !platform)
		return -ENOMEM;

	platform->name = platform_name;

	dl->name = devm_kasprintf(dev, GFP_KERNEL,
				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL);
	if (!dl->name || !dl->cpus || !dl->codecs)
		return -ENOMEM;

	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
	dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, MAX98373_DEV0_NAME);
	dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, MAX98373_CODEC_NAME);
	dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, MAX98373_DEV1_NAME);
	dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, MAX98373_CODEC_NAME);
	if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
	    !dl->codecs[1].name || !dl->codecs[1].dai_name)
		return -ENOMEM;

	dl->num_cpus = 1;
	dl->num_codecs = 2;
	dl->platforms = platform;
	dl->num_platforms = 1;
	dl->id = 0;
	dl->dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
	dl->be_hw_params_fixup = avs_max98373_be_fixup;
	dl->nonatomic = 1;
	dl->no_pcm = 1;
	dl->dpcm_capture = 1;
	dl->dpcm_playback = 1;
	dl->ignore_pmdown_time = 1;
	dl->ops = &avs_max98373_ops;

	*dai_link = dl;

	return 0;
}

static int avs_max98373_probe(struct platform_device *pdev)
{
	struct snd_soc_dai_link *dai_link;
	struct snd_soc_acpi_mach *mach;
	struct snd_soc_card *card;
	struct device *dev = &pdev->dev;
	const char *pname;
	int ssp_port, tdm_slot, ret;

	mach = dev_get_platdata(dev);
	pname = mach->mach_params.platform;

	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
	if (ret)
		return ret;

	ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
	if (ret) {
		dev_err(dev, "Failed to create dai link: %d", ret);
		return ret;
	}

	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
	if (!card)
		return -ENOMEM;

	card->name = "avs_max98373";
	card->dev = dev;
	card->owner = THIS_MODULE;
	card->dai_link = dai_link;
	card->num_links = 1;
	card->codec_conf = card_codec_conf;
	card->num_configs = ARRAY_SIZE(card_codec_conf);
	card->controls = card_controls;
	card->num_controls = ARRAY_SIZE(card_controls);
	card->dapm_widgets = card_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
	card->dapm_routes = card_base_routes;
	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
	card->fully_routed = true;

	ret = snd_soc_fixup_dai_links_platform_name(card, pname);
	if (ret)
		return ret;

	return devm_snd_soc_register_card(dev, card);
}

static struct platform_driver avs_max98373_driver = {
	.probe = avs_max98373_probe,
	.driver = {
		.name = "avs_max98373",
		.pm = &snd_soc_pm_ops,
	},
};

module_platform_driver(avs_max98373_driver)

MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:avs_max98373");