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

static const struct snd_kcontrol_new card_controls[] = {
        SOC_DAPM_PIN_SWITCH("Spk"),
};

static const struct snd_soc_dapm_widget card_widgets[] = {
        SND_SOC_DAPM_SPK("Spk", NULL),
};

static const struct snd_soc_dapm_route card_base_routes[] = {
        { "Spk", NULL, "Speaker" },
};

static int
avs_max98357a_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
{
        struct snd_interval *rate, *channels;
        struct snd_mask *fmt;

        rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
        channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
        fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

        /* The ADSP will convert the FE rate to 48k, stereo */
        rate->min = rate->max = 48000;
        channels->min = channels->max = 2;

        /* set SSP0 to 16 bit */
        snd_mask_none(fmt);
        snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
        return 0;
}

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);
        dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
        if (!dl->name || !dl->cpus || !dl->codecs)
                return -ENOMEM;

        dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
                                            AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
        dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "MX98357A:00");
        dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, "HiFi");
        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->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
        dl->be_hw_params_fixup = avs_max98357a_be_fixup;
        dl->nonatomic = 1;
        dl->no_pcm = 1;
        dl->playback_only = 1;

        *dai_link = dl;

        return 0;
}

static int avs_max98357a_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;

        ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
        if (ret)
                return ret;

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

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

        if (pdata->obsolete_card_names) {
                card->name = "avs_max98357a";
        } else {
                card->driver_name = "avs_max98357a";
                card->long_name = card->name = "AVS I2S MAX98357A";
        }
        card->dev = dev;
        card->owner = THIS_MODULE;
        card->dai_link = dai_link;
        card->num_links = 1;
        card->controls = card_controls;
        card->num_controls = ARRAY_SIZE(card_controls);
        card->dapm_widgets = card_widgets;
        card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
        card->dapm_routes = card_base_routes;
        card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
        card->fully_routed = true;

        return devm_snd_soc_register_deferrable_card(dev, card);
}

static const struct platform_device_id avs_max98357a_driver_ids[] = {
        {
                .name = "avs_max98357a",
        },
        {},
};
MODULE_DEVICE_TABLE(platform, avs_max98357a_driver_ids);

static struct platform_driver avs_max98357a_driver = {
        .probe = avs_max98357a_probe,
        .driver = {
                .name = "avs_max98357a",
                .pm = &snd_soc_pm_ops,
        },
        .id_table = avs_max98357a_driver_ids,
};

module_platform_driver(avs_max98357a_driver)

MODULE_DESCRIPTION("Intel max98357a machine driver");
MODULE_LICENSE("GPL");