4 * (c) 2010 Arnaud Patard <apatard@mandriva.com>
5 * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
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.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/interrupt.h>
16 #include <linux/platform_device.h>
17 #include <linux/slab.h>
18 #include <sound/soc.h>
19 #include <linux/platform_data/asoc-kirkwood.h>
20 #include "../codecs/cs42l51.h"
22 static int openrd_client_hw_params(struct snd_pcm_substream
*substream
,
23 struct snd_pcm_hw_params
*params
)
25 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
26 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
29 switch (params_rate(params
)) {
42 return snd_soc_dai_set_sysclk(codec_dai
, 0, freq
, SND_SOC_CLOCK_IN
);
46 static struct snd_soc_ops openrd_client_ops
= {
47 .hw_params
= openrd_client_hw_params
,
51 static struct snd_soc_dai_link openrd_client_dai
[] = {
54 .stream_name
= "CS42L51 HiFi",
55 .cpu_dai_name
= "mvebu-audio",
56 .platform_name
= "mvebu-audio",
57 .codec_dai_name
= "cs42l51-hifi",
58 .codec_name
= "cs42l51-codec.0-004a",
59 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_CBS_CFS
,
60 .ops
= &openrd_client_ops
,
65 static struct snd_soc_card openrd_client
= {
66 .name
= "OpenRD Client",
68 .dai_link
= openrd_client_dai
,
69 .num_links
= ARRAY_SIZE(openrd_client_dai
),
72 static int openrd_probe(struct platform_device
*pdev
)
74 struct snd_soc_card
*card
= &openrd_client
;
77 card
->dev
= &pdev
->dev
;
79 ret
= snd_soc_register_card(card
);
81 dev_err(&pdev
->dev
, "snd_soc_register_card() failed: %d\n",
86 static int openrd_remove(struct platform_device
*pdev
)
88 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
90 snd_soc_unregister_card(card
);
94 static struct platform_driver openrd_driver
= {
96 .name
= "openrd-client-audio",
99 .probe
= openrd_probe
,
100 .remove
= openrd_remove
,
103 module_platform_driver(openrd_driver
);
105 /* Module information */
106 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
107 MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
108 MODULE_LICENSE("GPL");
109 MODULE_ALIAS("platform:openrd-client-audio");