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