// SPDX-License-Identifier: GPL-2.0-only
/*
 * Intel Haswell Lynxpoint SST Audio
 *
 * Copyright (C) 2013, Intel Corporation. All rights reserved.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/pcm_params.h>

#include "../common/sst-dsp.h"
#include "../haswell/sst-haswell-ipc.h"

#include "../../codecs/rt5640.h"

/* Haswell ULT platforms have a Headphone and Mic jack */
static const struct snd_soc_dapm_widget haswell_widgets[] = {
        SND_SOC_DAPM_HP("Headphones", NULL),
        SND_SOC_DAPM_MIC("Mic", NULL),
};

static const struct snd_soc_dapm_route haswell_rt5640_map[] = {

        {"Headphones", NULL, "HPOR"},
        {"Headphones", NULL, "HPOL"},
        {"IN2P", NULL, "Mic"},

        /* CODEC BE connections */
        {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
        {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
};

static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
                        struct snd_pcm_hw_params *params)
{
        struct snd_interval *rate = hw_param_interval(params,
                        SNDRV_PCM_HW_PARAM_RATE);
        struct snd_interval *channels = hw_param_interval(params,
                                                SNDRV_PCM_HW_PARAM_CHANNELS);

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

        /* set SSP0 to 16 bit */
        params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
        return 0;
}

static int haswell_rt5640_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 *codec_dai = rtd->codec_dai;
        int ret;

        ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
                SND_SOC_CLOCK_IN);

        if (ret < 0) {
                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
                return ret;
        }

        /* set correct codec filter for DAI format and clock config */
        snd_soc_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);

        return ret;
}

static const struct snd_soc_ops haswell_rt5640_ops = {
        .hw_params = haswell_rt5640_hw_params,
};

static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
{
        struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
        struct sst_pdata *pdata = dev_get_platdata(component->dev);
        struct sst_hsw *haswell = pdata->dsp;
        int ret;

        /* Set ADSP SSP port settings */
        ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
                SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
                SST_HSW_DEVICE_CLOCK_MASTER, 9);
        if (ret < 0) {
                dev_err(rtd->dev, "failed to set device config\n");
                return ret;
        }

        return 0;
}

static struct snd_soc_dai_link haswell_rt5640_dais[] = {
        /* Front End DAI links */
        {
                .name = "System",
                .stream_name = "System Playback/Capture",
                .cpu_dai_name = "System Pin",
                .platform_name = "haswell-pcm-audio",
                .dynamic = 1,
                .codec_name = "snd-soc-dummy",
                .codec_dai_name = "snd-soc-dummy-dai",
                .init = haswell_rtd_init,
                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
                .dpcm_playback = 1,
                .dpcm_capture = 1,
        },
        {
                .name = "Offload0",
                .stream_name = "Offload0 Playback",
                .cpu_dai_name = "Offload0 Pin",
                .platform_name = "haswell-pcm-audio",
                .dynamic = 1,
                .codec_name = "snd-soc-dummy",
                .codec_dai_name = "snd-soc-dummy-dai",
                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
                .dpcm_playback = 1,
        },
        {
                .name = "Offload1",
                .stream_name = "Offload1 Playback",
                .cpu_dai_name = "Offload1 Pin",
                .platform_name = "haswell-pcm-audio",
                .dynamic = 1,
                .codec_name = "snd-soc-dummy",
                .codec_dai_name = "snd-soc-dummy-dai",
                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
                .dpcm_playback = 1,
        },
        {
                .name = "Loopback",
                .stream_name = "Loopback",
                .cpu_dai_name = "Loopback Pin",
                .platform_name = "haswell-pcm-audio",
                .dynamic = 1,
                .codec_name = "snd-soc-dummy",
                .codec_dai_name = "snd-soc-dummy-dai",
                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
                .dpcm_capture = 1,
        },

        /* Back End DAI links */
        {
                /* SSP0 - Codec */
                .name = "Codec",
                .id = 0,
                .cpu_dai_name = "snd-soc-dummy-dai",
                .platform_name = "snd-soc-dummy",
                .no_pcm = 1,
                .codec_name = "i2c-INT33CA:00",
                .codec_dai_name = "rt5640-aif1",
                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
                        SND_SOC_DAIFMT_CBS_CFS,
                .ignore_suspend = 1,
                .ignore_pmdown_time = 1,
                .be_hw_params_fixup = haswell_ssp0_fixup,
                .ops = &haswell_rt5640_ops,
                .dpcm_playback = 1,
                .dpcm_capture = 1,
        },
};

/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
static struct snd_soc_card haswell_rt5640 = {
        .name = "haswell-rt5640",
        .owner = THIS_MODULE,
        .dai_link = haswell_rt5640_dais,
        .num_links = ARRAY_SIZE(haswell_rt5640_dais),
        .dapm_widgets = haswell_widgets,
        .num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
        .dapm_routes = haswell_rt5640_map,
        .num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
        .fully_routed = true,
};

static int haswell_audio_probe(struct platform_device *pdev)
{
        struct snd_soc_acpi_mach *mach;
        const char *platform_name = NULL;
        int ret;

        haswell_rt5640.dev = &pdev->dev;

        /* override plaform name, if required */
        mach = (&pdev->dev)->platform_data;
        if (mach) /* extra check since legacy does not pass parameters */
                platform_name = mach->mach_params.platform;

        ret = snd_soc_fixup_dai_links_platform_name(&haswell_rt5640,
                                                    platform_name);
        if (ret)
                return ret;

        return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
}

static struct platform_driver haswell_audio = {
        .probe = haswell_audio_probe,
        .driver = {
                .name = "haswell-audio",
        },
};

module_platform_driver(haswell_audio)

/* Module information */
MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:haswell-audio");