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1 | /* |
2 | * Copyright (C) 2014 Marvell | |
3 | * | |
4 | * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of the | |
9 | * License, or (at your option) any later version. | |
10 | */ | |
11 | ||
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 | ||
22 | static 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 | ||
45 | static struct snd_soc_ops a370db_ops = { | |
46 | .hw_params = a370db_hw_params, | |
47 | }; | |
48 | ||
49 | static 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 | ||
54 | static 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 | ||
61 | static 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 | }, | |
cece5656 TP |
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 | }, | |
74d04c3e TP |
84 | }; |
85 | ||
86 | static 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 | ||
97 | static 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 | ||
cece5656 TP |
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 | ||
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126 | return devm_snd_soc_register_card(card->dev, card); |
127 | } | |
128 | ||
129 | static const struct of_device_id a370db_dt_ids[] = { | |
130 | { .compatible = "marvell,a370db-audio" }, | |
131 | { }, | |
132 | }; | |
30953a80 | 133 | MODULE_DEVICE_TABLE(of, a370db_dt_ids); |
74d04c3e TP |
134 | |
135 | static struct platform_driver a370db_driver = { | |
136 | .driver = { | |
137 | .name = "a370db-audio", | |
74d04c3e TP |
138 | .of_match_table = of_match_ptr(a370db_dt_ids), |
139 | }, | |
140 | .probe = a370db_probe, | |
141 | }; | |
142 | ||
143 | module_platform_driver(a370db_driver); | |
144 | ||
145 | MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); | |
146 | MODULE_DESCRIPTION("ALSA SoC a370db audio client"); | |
147 | MODULE_LICENSE("GPL"); | |
148 | MODULE_ALIAS("platform:a370db-audio"); |