1 /*
2 * ad73311.c -- ALSA Soc AD73311 codec support
3 *
4 * Copyright: Analog Device Inc.
5 * Author: Cliff Cai <cliff.cai@analog.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12
13 #include <linux/init.h>
14 #include <linux/slab.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/device.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/ac97_codec.h>
21 #include <sound/initval.h>
22 #include <sound/soc.h>
23
24 #include "ad73311.h"
25
26 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
27 SND_SOC_DAPM_INPUT("VINP"),
28 SND_SOC_DAPM_INPUT("VINN"),
29 SND_SOC_DAPM_OUTPUT("VOUTN"),
30 SND_SOC_DAPM_OUTPUT("VOUTP"),
31 };
32
33 static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
34 { "Capture", NULL, "VINP" },
35 { "Capture", NULL, "VINN" },
36
37 { "VOUTN", NULL, "Playback" },
38 { "VOUTP", NULL, "Playback" },
39 };
40
41 static struct snd_soc_dai_driver ad73311_dai = {
42 .name = "ad73311-hifi",
43 .playback = {
44 .stream_name = "Playback",
45 .channels_min = 1,
46 .channels_max = 1,
47 .rates = SNDRV_PCM_RATE_8000,
48 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
49 .capture = {
50 .stream_name = "Capture",
51 .channels_min = 1,
52 .channels_max = 1,
53 .rates = SNDRV_PCM_RATE_8000,
54 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
55 };
56
57 static const struct snd_soc_component_driver soc_component_dev_ad73311 = {
58 .dapm_widgets = ad73311_dapm_widgets,
59 .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets),
60 .dapm_routes = ad73311_dapm_routes,
61 .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes),
62 .idle_bias_on = 1,
63 .use_pmdown_time = 1,
64 .endianness = 1,
65 .non_legacy_dai_naming = 1,
66 };
67
ad73311_probe(struct platform_device * pdev)68 static int ad73311_probe(struct platform_device *pdev)
69 {
70 return devm_snd_soc_register_component(&pdev->dev,
71 &soc_component_dev_ad73311, &ad73311_dai, 1);
72 }
73
74 static struct platform_driver ad73311_codec_driver = {
75 .driver = {
76 .name = "ad73311",
77 },
78
79 .probe = ad73311_probe,
80 };
81
82 module_platform_driver(ad73311_codec_driver);
83
84 MODULE_DESCRIPTION("ASoC ad73311 driver");
85 MODULE_AUTHOR("Cliff Cai ");
86 MODULE_LICENSE("GPL");
87