#include <linux/types.h>
#include <linux/module.h>

#include <sound/soc.h>

#include <mc_pcm.h>

static int mc_uda1380_init(struct snd_soc_pcm_runtime *rtd);
static int mc_uda1380_startup(struct snd_pcm_substream *substream);
static int mc_uda1380_hw_params(struct snd_pcm_substream *substream,
                struct snd_pcm_hw_params *params);

static unsigned int rates[] = {
    5512,
    8000,
    11025,
    16000,
    22050,
    32000,
    44100,
    48000,
    64000,
    88200,
    96000,
    176400,
    192000
};

static struct snd_pcm_hw_constraint_list hw_rates = {
    .count = ARRAY_SIZE(rates),
    .list = rates,
    .mask = 0,
};

static struct snd_soc_ops mc_uda1380_ops = {
    .startup    = mc_uda1380_startup,
    .hw_params  = mc_uda1380_hw_params,
};

/* Multicore digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link mc_uda1380_dai[] = {
    {
        .name           = "uda1380",
        .stream_name    = "UDA1380 Duplex",
        .cpu_dai_name   = "mc_i2s.2",
        .codec_dai_name = "uda1380-hifi",
        .init           = mc_uda1380_init,
        .platform_name  = "multicore-audio.2",
        .codec_name     = "uda1380-codec.0-0018",
        .ops            = &mc_uda1380_ops,
    },
};

static struct snd_soc_card mc_asoc = {
    .name = "mc_audio",
    .owner = THIS_MODULE,
    .dai_link = mc_uda1380_dai,
    .num_links = ARRAY_SIZE(mc_uda1380_dai),
};

static struct platform_device *mc_snd_device;

static int mc_uda1380_startup(struct snd_pcm_substream *substream)
{
    struct snd_pcm_runtime *runtime = substream->runtime;

    runtime->hw.rate_min = hw_rates.list[0];
    runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
    runtime->hw.rates = MC_PCM_RATES;

    return snd_pcm_hw_constraint_list(runtime, 0,
                    SNDRV_PCM_HW_PARAM_RATE,
                    &hw_rates);
}

static int mc_uda1380_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 *cpu_dai = rtd->cpu_dai;
    struct snd_soc_dai *codec_dai = rtd->codec_dai;
    int ret;

    /* set codec DAI configuration */
    ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
        SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
    if (ret < 0)
        return ret;

    /* set cpu DAI configuration */
    ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
        SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS |
        SND_SOC_DAIFMT_CONT);
    if (ret < 0)
        return ret;

    return 0;
}

static int mc_uda1380_init(struct snd_soc_pcm_runtime *rtd)
{
    return 0;
}

static int __init mc_audio_init(void)
{
    int ret;

    mc_snd_device = platform_device_alloc("soc-audio", -1);
    if (!mc_snd_device)
        return -ENOMEM;

    platform_set_drvdata(mc_snd_device, &mc_asoc);
    ret = platform_device_add(mc_snd_device);

    if (ret) {
        platform_device_put(mc_snd_device);
        return ret;
    }

    return 0;
}

static void __exit mc_audio_exit(void)
{
    platform_device_unregister(mc_snd_device);
}

late_initcall(mc_audio_init);
module_exit(mc_audio_exit);

MODULE_AUTHOR("Dmitry Podkhvatilin");
MODULE_DESCRIPTION("ALSA SoC MULTICORE");
MODULE_LICENSE("GPL");