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12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/interrupt.h>
15#include <linux/platform_device.h>
16#include <linux/slab.h>
17#include <sound/soc.h>
18#include <linux/of.h>
19#include <linux/platform_data/asoc-kirkwood.h>
20#include "../codecs/cs42l51.h"
21
22static int a370db_hw_params(struct snd_pcm_substream *substream,
23 struct snd_pcm_hw_params *params)
24{
25 struct snd_soc_pcm_runtime *rtd = substream->private_data;
26 struct snd_soc_dai *codec_dai = rtd->codec_dai;
27 unsigned int freq;
28
29 switch (params_rate(params)) {
30 default:
31 case 44100:
32 freq = 11289600;
33 break;
34 case 48000:
35 freq = 12288000;
36 break;
37 case 96000:
38 freq = 24576000;
39 break;
40 }
41
42 return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
43}
44
45static const struct snd_soc_ops a370db_ops = {
46 .hw_params = a370db_hw_params,
47};
48
49static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
50 SND_SOC_DAPM_HP("Out Jack", NULL),
51 SND_SOC_DAPM_LINE("In Jack", NULL),
52};
53
54static const struct snd_soc_dapm_route a370db_route[] = {
55 { "Out Jack", NULL, "HPL" },
56 { "Out Jack", NULL, "HPR" },
57 { "AIN1L", NULL, "In Jack" },
58 { "AIN1L", NULL, "In Jack" },
59};
60
61static struct snd_soc_dai_link a370db_dai[] = {
62{
63 .name = "CS42L51",
64 .stream_name = "analog",
65 .cpu_dai_name = "i2s",
66 .codec_dai_name = "cs42l51-hifi",
67 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
68 .ops = &a370db_ops,
69},
70{
71 .name = "S/PDIF out",
72 .stream_name = "spdif-out",
73 .cpu_dai_name = "spdif",
74 .codec_dai_name = "dit-hifi",
75 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
76},
77{
78 .name = "S/PDIF in",
79 .stream_name = "spdif-in",
80 .cpu_dai_name = "spdif",
81 .codec_dai_name = "dir-hifi",
82 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
83},
84};
85
86static struct snd_soc_card a370db = {
87 .name = "a370db",
88 .owner = THIS_MODULE,
89 .dai_link = a370db_dai,
90 .num_links = ARRAY_SIZE(a370db_dai),
91 .dapm_widgets = a370db_dapm_widgets,
92 .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
93 .dapm_routes = a370db_route,
94 .num_dapm_routes = ARRAY_SIZE(a370db_route),
95};
96
97static int a370db_probe(struct platform_device *pdev)
98{
99 struct snd_soc_card *card = &a370db;
100
101 card->dev = &pdev->dev;
102
103 a370db_dai[0].cpu_of_node =
104 of_parse_phandle(pdev->dev.of_node,
105 "marvell,audio-controller", 0);
106 a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node;
107
108 a370db_dai[0].codec_of_node =
109 of_parse_phandle(pdev->dev.of_node,
110 "marvell,audio-codec", 0);
111
112 a370db_dai[1].cpu_of_node = a370db_dai[0].cpu_of_node;
113 a370db_dai[1].platform_of_node = a370db_dai[0].cpu_of_node;
114
115 a370db_dai[1].codec_of_node =
116 of_parse_phandle(pdev->dev.of_node,
117 "marvell,audio-codec", 1);
118
119 a370db_dai[2].cpu_of_node = a370db_dai[0].cpu_of_node;
120 a370db_dai[2].platform_of_node = a370db_dai[0].cpu_of_node;
121
122 a370db_dai[2].codec_of_node =
123 of_parse_phandle(pdev->dev.of_node,
124 "marvell,audio-codec", 2);
125
126 return devm_snd_soc_register_card(card->dev, card);
127}
128
129static const struct of_device_id a370db_dt_ids[] = {
130 { .compatible = "marvell,a370db-audio" },
131 { },
132};
133MODULE_DEVICE_TABLE(of, a370db_dt_ids);
134
135static struct platform_driver a370db_driver = {
136 .driver = {
137 .name = "a370db-audio",
138 .of_match_table = of_match_ptr(a370db_dt_ids),
139 },
140 .probe = a370db_probe,
141};
142
143module_platform_driver(a370db_driver);
144
145MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
146MODULE_DESCRIPTION("ALSA SoC a370db audio client");
147MODULE_LICENSE("GPL");
148MODULE_ALIAS("platform:a370db-audio");
149
