// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license.  When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//

#include <linux/module.h>
#include <sound/sof.h>
#include "sof-audio.h"
#include "sof-priv.h"

static struct snd_soc_card sof_nocodec_card = {
        .name = "nocodec", /* the sof- prefix is added by the core */
        .topology_shortname = "sof-nocodec",
        .owner = THIS_MODULE
};

static int sof_nocodec_bes_setup(struct device *dev,
                                 struct snd_soc_dai_driver *drv,
                                 struct snd_soc_dai_link *links,
                                 int link_num, struct snd_soc_card *card)
{
        struct snd_soc_dai_link_component *dlc;
        int i;

        if (!drv || !links || !card)
                return -EINVAL;

        /* set up BE dai_links */
        for (i = 0; i < link_num; i++) {
                dlc = devm_kcalloc(dev, 2, sizeof(*dlc), GFP_KERNEL);
                if (!dlc)
                        return -ENOMEM;

                links[i].name = devm_kasprintf(dev, GFP_KERNEL,
                                               "NoCodec-%d", i);
                if (!links[i].name)
                        return -ENOMEM;

                links[i].stream_name = links[i].name;

                links[i].cpus = &dlc[0];
                links[i].codecs = &snd_soc_dummy_dlc;
                links[i].platforms = &dlc[1];

                links[i].num_cpus = 1;
                links[i].num_codecs = 1;
                links[i].num_platforms = 1;

                links[i].id = i;
                links[i].no_pcm = 1;
                links[i].cpus->dai_name = drv[i].name;
                links[i].platforms->name = dev_name(dev->parent);

                links[i].playback_only =  drv[i].playback.channels_min && !drv[i].capture.channels_min;
                links[i].capture_only  = !drv[i].playback.channels_min &&  drv[i].capture.channels_min;

                links[i].be_hw_params_fixup = sof_pcm_dai_link_fixup;
        }

        card->dai_link = links;
        card->num_links = link_num;

        return 0;
}

static int sof_nocodec_setup(struct device *dev,
                             u32 num_dai_drivers,
                             struct snd_soc_dai_driver *dai_drivers)
{
        struct snd_soc_dai_link *links;

        /* create dummy BE dai_links */
        links = devm_kcalloc(dev, num_dai_drivers, sizeof(struct snd_soc_dai_link), GFP_KERNEL);
        if (!links)
                return -ENOMEM;

        return sof_nocodec_bes_setup(dev, dai_drivers, links, num_dai_drivers, &sof_nocodec_card);
}

static int sof_nocodec_probe(struct platform_device *pdev)
{
        struct snd_soc_card *card = &sof_nocodec_card;
        struct snd_soc_acpi_mach *mach;
        int ret;

        card->dev = &pdev->dev;
        card->topology_shortname_created = true;
        mach = pdev->dev.platform_data;

        ret = sof_nocodec_setup(card->dev, mach->mach_params.num_dai_drivers,
                                mach->mach_params.dai_drivers);
        if (ret < 0)
                return ret;

        return devm_snd_soc_register_card(&pdev->dev, card);
}

static struct platform_driver sof_nocodec_audio = {
        .probe = sof_nocodec_probe,
        .driver = {
                .name = "sof-nocodec",
                .pm = &snd_soc_pm_ops,
        },
};
module_platform_driver(sof_nocodec_audio)

MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("ASoC sof nocodec");
MODULE_AUTHOR("Liam Girdwood");
MODULE_ALIAS("platform:sof-nocodec");