// SPDX-License-Identifier: GPL-2.0-only
// Copyright(c) 2015-18 Intel Corporation.

/*
 * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/hda_codec.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/hdac_hda.h"
#include "../../sof/intel/hda.h"
#include "sof_board_helpers.h"

static int skl_hda_card_late_probe(struct snd_soc_card *card)
{
        return sof_intel_board_card_late_probe(card);
}

#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000

static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
{
        struct snd_soc_pcm_runtime *rtd;
        struct hdac_hda_priv *hda_pvt;
        struct snd_soc_dai *dai;

        for_each_card_rtds(card, rtd) {
                if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
                        continue;
                dai = snd_soc_rtd_to_codec(rtd, 0);
                hda_pvt = snd_soc_component_get_drvdata(dai->component);
                if (hda_pvt) {
                        /*
                         * all codecs are on the same bus, so it's sufficient
                         * to look up only the first one
                         */
                        snd_hda_set_power_save(hda_pvt->codec->bus,
                                               HDA_CODEC_AUTOSUSPEND_DELAY_MS);
                        break;
                }
        }
}

#define IDISP_HDMI_BE_ID        1
#define HDA_BE_ID               4
#define DMIC01_BE_ID            6
#define DMIC16K_BE_ID           7
#define BT_OFFLOAD_BE_ID        8

#define HDA_LINK_ORDER  SOF_LINK_ORDER(SOF_LINK_IDISP_HDMI,  \
                                       SOF_LINK_HDA,        \
                                       SOF_LINK_DMIC01,     \
                                       SOF_LINK_DMIC16K,    \
                                       SOF_LINK_BT_OFFLOAD, \
                                       SOF_LINK_NONE,       \
                                       SOF_LINK_NONE)

#define HDA_LINK_IDS    SOF_LINK_ORDER(IDISP_HDMI_BE_ID,  \
                                       HDA_BE_ID,        \
                                       DMIC01_BE_ID,     \
                                       DMIC16K_BE_ID,    \
                                       BT_OFFLOAD_BE_ID, \
                                       0,                \
                                       0)

static unsigned long
skl_hda_get_board_quirk(struct snd_soc_acpi_mach_params *mach_params)
{
        unsigned long board_quirk = 0;
        int ssp_bt;

        if (hweight_long(mach_params->bt_link_mask) == 1) {
                ssp_bt = fls(mach_params->bt_link_mask) - 1;
                board_quirk |= SOF_SSP_PORT_BT_OFFLOAD(ssp_bt) |
                                SOF_BT_OFFLOAD_PRESENT;
        }

        return board_quirk;
}

static int skl_hda_add_dai_link(struct snd_soc_card *card,
                                struct snd_soc_dai_link *link)
{
        struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);

        /* Ignore the HDMI PCM link if iDisp is not present */
        if (strstr(link->stream_name, "HDMI") && !ctx->hdmi.idisp_codec)
                link->ignore = true;

        return 0;
}

static int skl_hda_audio_probe(struct platform_device *pdev)
{
        struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
        struct sof_card_private *ctx;
        struct snd_soc_card *card;
        unsigned long board_quirk = skl_hda_get_board_quirk(&mach->mach_params);
        int ret;

        card = devm_kzalloc(&pdev->dev, sizeof(struct snd_soc_card), GFP_KERNEL);
        if (!card)
                return -ENOMEM;

        card->name = "hda-dsp";
        card->owner = THIS_MODULE;
        card->fully_routed = true;
        card->late_probe = skl_hda_card_late_probe;
        card->add_dai_link = skl_hda_add_dai_link;

        dev_dbg(&pdev->dev, "board_quirk = %lx\n", board_quirk);

        /* initialize ctx with board quirk */
        ctx = sof_intel_board_get_ctx(&pdev->dev, board_quirk);
        if (!ctx)
                return -ENOMEM;

        if (HDA_EXT_CODEC(mach->mach_params.codec_mask))
                ctx->hda_codec_present = true;

        if (mach->mach_params.codec_mask & IDISP_CODEC_MASK)
                ctx->hdmi.idisp_codec = true;

        ctx->link_order_overwrite = HDA_LINK_ORDER;
        ctx->link_id_overwrite = HDA_LINK_IDS;

        /* update dai_link */
        ret = sof_intel_board_set_dai_link(&pdev->dev, card, ctx);
        if (ret)
                return ret;

        card->dev = &pdev->dev;

        if (mach->mach_params.dmic_num > 0) {
                card->components = devm_kasprintf(card->dev, GFP_KERNEL,
                                                  "cfg-dmics:%d",
                                                  mach->mach_params.dmic_num);
                if (!card->components)
                        return -ENOMEM;
        }

        ret = snd_soc_fixup_dai_links_platform_name(card,
                                                    mach->mach_params.platform);
        if (ret)
                return ret;

        snd_soc_card_set_drvdata(card, ctx);

        ret = devm_snd_soc_register_card(&pdev->dev, card);
        if (!ret)
                skl_set_hda_codec_autosuspend_delay(card);

        return ret;
}

static struct platform_driver skl_hda_audio = {
        .probe = skl_hda_audio_probe,
        .driver = {
                .name = "skl_hda_dsp_generic",
                .pm = &snd_soc_pm_ops,
        },
};

module_platform_driver(skl_hda_audio)

/* Module information */
MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:skl_hda_dsp_generic");
MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_BOARD_HELPERS");