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apatard@mandriva.com2e8693e2010-05-31 13:49:15 +02001/*
2 * kirkwood-openrd.c
3 *
4 * (c) 2010 Arnaud Patard <apatard@mandriva.com>
Arnaud Patard (Rtp)69737892010-09-09 14:10:33 +02005 * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +02006 *
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/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>
Arnd Bergmannc02cecb2012-08-24 15:21:54 +020019#include <linux/platform_data/asoc-kirkwood.h>
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020020#include "../codecs/cs42l51.h"
21
22static int openrd_client_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;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000026 struct snd_soc_dai *codec_dai = rtd->codec_dai;
Axel Lin077a2ba2011-12-28 18:58:17 +080027 unsigned int freq;
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020028
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
46static struct snd_soc_ops openrd_client_ops = {
47 .hw_params = openrd_client_hw_params,
48};
49
50
51static struct snd_soc_dai_link openrd_client_dai[] = {
52{
53 .name = "CS42L51",
54 .stream_name = "CS42L51 HiFi",
Russell King64ddf1f2013-08-04 20:27:03 +010055 .cpu_dai_name = "mvebu-audio",
56 .platform_name = "mvebu-audio",
Arnaud Patard (Rtp)c88e7b92010-08-30 16:00:05 +020057 .codec_dai_name = "cs42l51-hifi",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000058 .codec_name = "cs42l51-codec.0-004a",
Axel Lin077a2ba2011-12-28 18:58:17 +080059 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020060 .ops = &openrd_client_ops,
61},
62};
63
64
65static struct snd_soc_card openrd_client = {
66 .name = "OpenRD Client",
Axel Lin9b344ce2011-12-23 14:49:28 +080067 .owner = THIS_MODULE,
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020068 .dai_link = openrd_client_dai,
69 .num_links = ARRAY_SIZE(openrd_client_dai),
70};
71
Bill Pemberton34e15fb2012-12-07 09:26:26 -050072static int openrd_probe(struct platform_device *pdev)
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020073{
Axel Lin6d6761a2011-12-28 20:32:42 +080074 struct snd_soc_card *card = &openrd_client;
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020075 int ret;
76
Axel Lin6d6761a2011-12-28 20:32:42 +080077 card->dev = &pdev->dev;
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020078
Axel Lin6d6761a2011-12-28 20:32:42 +080079 ret = snd_soc_register_card(card);
80 if (ret)
81 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
82 ret);
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020083 return ret;
84}
85
Bill Pemberton34e15fb2012-12-07 09:26:26 -050086static int openrd_remove(struct platform_device *pdev)
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020087{
Axel Lin6d6761a2011-12-28 20:32:42 +080088 struct snd_soc_card *card = platform_get_drvdata(pdev);
89
90 snd_soc_unregister_card(card);
91 return 0;
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +020092}
93
Axel Lin6d6761a2011-12-28 20:32:42 +080094static struct platform_driver openrd_driver = {
95 .driver = {
96 .name = "openrd-client-audio",
97 .owner = THIS_MODULE,
98 },
99 .probe = openrd_probe,
Bill Pemberton34e15fb2012-12-07 09:26:26 -0500100 .remove = openrd_remove,
Axel Lin6d6761a2011-12-28 20:32:42 +0800101};
102
103module_platform_driver(openrd_driver);
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +0200104
105/* Module information */
Arnaud Patard (Rtp)69737892010-09-09 14:10:33 +0200106MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
apatard@mandriva.com2e8693e2010-05-31 13:49:15 +0200107MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
108MODULE_LICENSE("GPL");
Axel Lin6d6761a2011-12-28 20:32:42 +0800109MODULE_ALIAS("platform:openrd-client-audio");