diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c')
-rw-r--r-- | ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c b/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c new file mode 100644 index 00000000..80bd59c3 --- /dev/null +++ b/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c @@ -0,0 +1,111 @@ +/* + * kirkwood-openrd.c + * + * (c) 2010 Arnaud Patard <apatard@mandriva.com> + * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <mach/kirkwood.h> +#include <plat/audio.h> +#include <asm/mach-types.h> +#include "../codecs/cs42l51.h" + +static int openrd_client_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + unsigned int freq; + + switch (params_rate(params)) { + default: + case 44100: + freq = 11289600; + break; + case 48000: + freq = 12288000; + break; + case 96000: + freq = 24576000; + break; + } + + return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); + +} + +static struct snd_soc_ops openrd_client_ops = { + .hw_params = openrd_client_hw_params, +}; + + +static struct snd_soc_dai_link openrd_client_dai[] = { +{ + .name = "CS42L51", + .stream_name = "CS42L51 HiFi", + .cpu_dai_name = "kirkwood-i2s", + .platform_name = "kirkwood-pcm-audio", + .codec_dai_name = "cs42l51-hifi", + .codec_name = "cs42l51-codec.0-004a", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + .ops = &openrd_client_ops, +}, +}; + + +static struct snd_soc_card openrd_client = { + .name = "OpenRD Client", + .owner = THIS_MODULE, + .dai_link = openrd_client_dai, + .num_links = ARRAY_SIZE(openrd_client_dai), +}; + +static int __devinit openrd_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &openrd_client; + int ret; + + card->dev = &pdev->dev; + + ret = snd_soc_register_card(card); + if (ret) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + return ret; +} + +static int __devexit openrd_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + return 0; +} + +static struct platform_driver openrd_driver = { + .driver = { + .name = "openrd-client-audio", + .owner = THIS_MODULE, + }, + .probe = openrd_probe, + .remove = __devexit_p(openrd_remove), +}; + +module_platform_driver(openrd_driver); + +/* Module information */ +MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); +MODULE_DESCRIPTION("ALSA SoC OpenRD Client"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:openrd-client-audio"); |