Commit | Line | Data |
---|---|---|
2e8693ee | 1 | /* |
2 | * kirkwood-openrd.c | |
3 | * | |
4 | * (c) 2010 Arnaud Patard <apatard@mandriva.com> | |
69737897 | 5 | * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> |
2e8693ee | 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/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 <mach/kirkwood.h> | |
20 | #include <plat/audio.h> | |
21 | #include <asm/mach-types.h> | |
2e8693ee | 22 | #include "../codecs/cs42l51.h" |
23 | ||
24 | static int openrd_client_hw_params(struct snd_pcm_substream *substream, | |
25 | struct snd_pcm_hw_params *params) | |
26 | { | |
27 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
28 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
29 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e8693ee | 30 | int ret; |
31 | unsigned int freq, fmt; | |
32 | ||
33 | fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS; | |
34 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); | |
35 | if (ret < 0) | |
36 | return ret; | |
37 | ||
38 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); | |
39 | if (ret < 0) | |
40 | return ret; | |
41 | ||
42 | switch (params_rate(params)) { | |
43 | default: | |
44 | case 44100: | |
45 | freq = 11289600; | |
46 | break; | |
47 | case 48000: | |
48 | freq = 12288000; | |
49 | break; | |
50 | case 96000: | |
51 | freq = 24576000; | |
52 | break; | |
53 | } | |
54 | ||
55 | return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); | |
56 | ||
57 | } | |
58 | ||
59 | static struct snd_soc_ops openrd_client_ops = { | |
60 | .hw_params = openrd_client_hw_params, | |
61 | }; | |
62 | ||
63 | ||
64 | static struct snd_soc_dai_link openrd_client_dai[] = { | |
65 | { | |
66 | .name = "CS42L51", | |
67 | .stream_name = "CS42L51 HiFi", | |
f0fba2ad LG |
68 | .cpu_dai_name = "kirkwood-i2s", |
69 | .platform_name = "kirkwood-pcm-audio", | |
c88e7b93 | 70 | .codec_dai_name = "cs42l51-hifi", |
f0fba2ad | 71 | .codec_name = "cs42l51-codec.0-004a", |
2e8693ee | 72 | .ops = &openrd_client_ops, |
73 | }, | |
74 | }; | |
75 | ||
76 | ||
77 | static struct snd_soc_card openrd_client = { | |
78 | .name = "OpenRD Client", | |
2e8693ee | 79 | .dai_link = openrd_client_dai, |
80 | .num_links = ARRAY_SIZE(openrd_client_dai), | |
81 | }; | |
82 | ||
2e8693ee | 83 | static struct platform_device *openrd_client_snd_device; |
84 | ||
85 | static int __init openrd_client_init(void) | |
86 | { | |
87 | int ret; | |
88 | ||
89 | if (!machine_is_openrd_client()) | |
90 | return 0; | |
91 | ||
92 | openrd_client_snd_device = platform_device_alloc("soc-audio", -1); | |
93 | if (!openrd_client_snd_device) | |
94 | return -ENOMEM; | |
95 | ||
96 | platform_set_drvdata(openrd_client_snd_device, | |
f0fba2ad | 97 | &openrd_client); |
2e8693ee | 98 | |
99 | ret = platform_device_add(openrd_client_snd_device); | |
100 | if (ret) { | |
101 | printk(KERN_ERR "%s: platform_device_add failed\n", __func__); | |
102 | platform_device_put(openrd_client_snd_device); | |
103 | } | |
104 | ||
105 | return ret; | |
106 | } | |
107 | ||
108 | static void __exit openrd_client_exit(void) | |
109 | { | |
110 | platform_device_unregister(openrd_client_snd_device); | |
111 | } | |
112 | ||
113 | module_init(openrd_client_init); | |
114 | module_exit(openrd_client_exit); | |
115 | ||
116 | /* Module information */ | |
69737897 | 117 | MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); |
2e8693ee | 118 | MODULE_DESCRIPTION("ALSA SoC OpenRD Client"); |
119 | MODULE_LICENSE("GPL"); | |
120 | MODULE_ALIAS("platform:soc-audio"); |