// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2021-2022 Intel Corporation
//
// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
//

#include <linux/module.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include "../utils.h"

static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
                               struct snd_soc_dai_link **dai_link)
{
        struct snd_soc_dai_link_component *platform;
        struct snd_soc_dai_link *dl;

        dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
        platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
        if (!dl || !platform)
                return -ENOMEM;

        dl->name = devm_kasprintf(dev, GFP_KERNEL,
                                  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
        dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
        if (!dl->name || !dl->cpus)
                return -ENOMEM;

        dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
                                            AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
        dl->codecs = &snd_soc_dummy_dlc;
        if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
                return -ENOMEM;

        platform->name = dev_name(dev);
        dl->num_cpus = 1;
        dl->num_codecs = 1;
        dl->platforms = platform;
        dl->num_platforms = 1;
        dl->id = 0;
        dl->nonatomic = 1;
        dl->no_pcm = 1;

        *dai_link = dl;

        return 0;
}

static int avs_i2s_test_probe(struct platform_device *pdev)
{
        struct snd_soc_dai_link *dai_link;
        struct snd_soc_acpi_mach *mach;
        struct avs_mach_pdata *pdata;
        struct snd_soc_card *card;
        struct device *dev = &pdev->dev;
        int ssp_port, tdm_slot, ret;

        mach = dev_get_platdata(dev);
        pdata = mach->pdata;

        if (!avs_mach_singular_ssp(mach)) {
                dev_err(dev, "Invalid SSP configuration\n");
                return -EINVAL;
        }
        ssp_port = avs_mach_ssp_port(mach);

        if (!avs_mach_singular_tdm(mach, ssp_port)) {
                dev_err(dev, "Invalid TDM configuration\n");
                return -EINVAL;
        }
        tdm_slot = avs_mach_ssp_tdm(mach, ssp_port);

        card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
        if (!card)
                return -ENOMEM;

        if (pdata->obsolete_card_names) {
                card->name = devm_kasprintf(dev, GFP_KERNEL,
                                            AVS_STRING_FMT("ssp", "-loopback", ssp_port, tdm_slot));
        } else {
                card->driver_name = "avs_i2s_test";
                card->long_name = card->name = devm_kasprintf(dev, GFP_KERNEL,
                                                              AVS_STRING_FMT("AVS I2S TEST-", "",
                                                                             ssp_port, tdm_slot));
        }
        if (!card->name)
                return -ENOMEM;

        ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link);
        if (ret) {
                dev_err(dev, "Failed to create dai link: %d\n", ret);
                return ret;
        }

        card->dev = dev;
        card->owner = THIS_MODULE;
        card->dai_link = dai_link;
        card->num_links = 1;
        card->fully_routed = true;

        return devm_snd_soc_register_deferrable_card(dev, card);
}

static const struct platform_device_id avs_i2s_test_driver_ids[] = {
        {
                .name = "avs_i2s_test",
        },
        {},
};
MODULE_DEVICE_TABLE(platform, avs_i2s_test_driver_ids);

static struct platform_driver avs_i2s_test_driver = {
        .probe = avs_i2s_test_probe,
        .driver = {
                .name = "avs_i2s_test",
                .pm = &snd_soc_pm_ops,
        },
        .id_table = avs_i2s_test_driver_ids,
};

module_platform_driver(avs_i2s_test_driver);

MODULE_DESCRIPTION("Intel i2s test machine driver");
MODULE_LICENSE("GPL");