1/*
2 * Machine driver for EVAL-ADAU1701MINIZ on Analog Devices bfin
3 * evaluation boards.
4 *
5 * Copyright 2011 Analog Devices Inc.
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
7 *
8 * Licensed under the GPL-2 or later.
9 */
10
11#include <linux/module.h>
12#include <linux/device.h>
13#include <sound/core.h>
14#include <sound/pcm.h>
15#include <sound/soc.h>
16#include <sound/pcm_params.h>
17
18#include "../codecs/adau1701.h"
19
20static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = {
21	SND_SOC_DAPM_SPK("Speaker", NULL),
22	SND_SOC_DAPM_LINE("Line Out", NULL),
23	SND_SOC_DAPM_LINE("Line In", NULL),
24};
25
26static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = {
27	{ "Speaker", NULL, "OUT0" },
28	{ "Speaker", NULL, "OUT1" },
29	{ "Line Out", NULL, "OUT2" },
30	{ "Line Out", NULL, "OUT3" },
31
32	{ "IN0", NULL, "Line In" },
33	{ "IN1", NULL, "Line In" },
34};
35
36static int bfin_eval_adau1701_hw_params(struct snd_pcm_substream *substream,
37	struct snd_pcm_hw_params *params)
38{
39	struct snd_soc_pcm_runtime *rtd = substream->private_data;
40	struct snd_soc_dai *codec_dai = rtd->codec_dai;
41	int ret;
42
43	ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000,
44			SND_SOC_CLOCK_IN);
45
46	return ret;
47}
48
49static struct snd_soc_ops bfin_eval_adau1701_ops = {
50	.hw_params = bfin_eval_adau1701_hw_params,
51};
52
53#define BFIN_EVAL_ADAU1701_DAI_FMT (SND_SOC_DAIFMT_I2S | \
54				SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM)
55
56static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = {
57	{
58		.name = "adau1701",
59		.stream_name = "adau1701",
60		.cpu_dai_name = "bfin-i2s.0",
61		.codec_dai_name = "adau1701",
62		.platform_name = "bfin-i2s-pcm-audio",
63		.codec_name = "adau1701.0-0034",
64		.ops = &bfin_eval_adau1701_ops,
65		.dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT,
66	},
67	{
68		.name = "adau1701",
69		.stream_name = "adau1701",
70		.cpu_dai_name = "bfin-i2s.1",
71		.codec_dai_name = "adau1701",
72		.platform_name = "bfin-i2s-pcm-audio",
73		.codec_name = "adau1701.0-0034",
74		.ops = &bfin_eval_adau1701_ops,
75		.dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT,
76	},
77};
78
79static struct snd_soc_card bfin_eval_adau1701 = {
80	.name = "bfin-eval-adau1701",
81	.owner = THIS_MODULE,
82	.dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM],
83	.num_links = 1,
84
85	.dapm_widgets		= bfin_eval_adau1701_dapm_widgets,
86	.num_dapm_widgets	= ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets),
87	.dapm_routes		= bfin_eval_adau1701_dapm_routes,
88	.num_dapm_routes	= ARRAY_SIZE(bfin_eval_adau1701_dapm_routes),
89};
90
91static int bfin_eval_adau1701_probe(struct platform_device *pdev)
92{
93	struct snd_soc_card *card = &bfin_eval_adau1701;
94
95	card->dev = &pdev->dev;
96
97	return snd_soc_register_card(&bfin_eval_adau1701);
98}
99
100static int bfin_eval_adau1701_remove(struct platform_device *pdev)
101{
102	struct snd_soc_card *card = platform_get_drvdata(pdev);
103
104	snd_soc_unregister_card(card);
105
106	return 0;
107}
108
109static struct platform_driver bfin_eval_adau1701_driver = {
110	.driver = {
111		.name = "bfin-eval-adau1701",
112		.pm = &snd_soc_pm_ops,
113	},
114	.probe = bfin_eval_adau1701_probe,
115	.remove = bfin_eval_adau1701_remove,
116};
117
118module_platform_driver(bfin_eval_adau1701_driver);
119
120MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
121MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver");
122MODULE_LICENSE("GPL");
123MODULE_ALIAS("platform:bfin-eval-adau1701");
124