projects / mirror_ubuntu-jammy-kernel.git / blame
| 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 | ||
| 3c9e28e7 | 89 | if (!machine_is_openrd_client() && !machine_is_openrd_ultimate()) |
| 2e8693ee | 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"); |