// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * ads117x.c  --  Driver for ads1174/8 ADC chips
 *
 * Copyright 2009 ShotSpotter Inc.
 * Author: Graeme Gregory <gg@slimlogic.co.uk>
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <sound/soc.h>

#include <linux/of.h>

#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)

static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("Input1"),
SND_SOC_DAPM_INPUT("Input2"),
SND_SOC_DAPM_INPUT("Input3"),
SND_SOC_DAPM_INPUT("Input4"),
SND_SOC_DAPM_INPUT("Input5"),
SND_SOC_DAPM_INPUT("Input6"),
SND_SOC_DAPM_INPUT("Input7"),
SND_SOC_DAPM_INPUT("Input8"),
};

static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
        { "Capture", NULL, "Input1" },
        { "Capture", NULL, "Input2" },
        { "Capture", NULL, "Input3" },
        { "Capture", NULL, "Input4" },
        { "Capture", NULL, "Input5" },
        { "Capture", NULL, "Input6" },
        { "Capture", NULL, "Input7" },
        { "Capture", NULL, "Input8" },
};

static struct snd_soc_dai_driver ads117x_dai = {
/* ADC */
        .name = "ads117x-hifi",
        .capture = {
                .stream_name = "Capture",
                .channels_min = 1,
                .channels_max = 32,
                .rates = ADS117X_RATES,
                .formats = ADS117X_FORMATS,},
};

static const struct snd_soc_component_driver soc_component_dev_ads117x = {
        .dapm_widgets           = ads117x_dapm_widgets,
        .num_dapm_widgets       = ARRAY_SIZE(ads117x_dapm_widgets),
        .dapm_routes            = ads117x_dapm_routes,
        .num_dapm_routes        = ARRAY_SIZE(ads117x_dapm_routes),
        .idle_bias_on           = 1,
        .use_pmdown_time        = 1,
        .endianness             = 1,
};

static int ads117x_probe(struct platform_device *pdev)
{
        return devm_snd_soc_register_component(&pdev->dev,
                        &soc_component_dev_ads117x, &ads117x_dai, 1);
}

#if defined(CONFIG_OF)
static const struct of_device_id ads117x_dt_ids[] = {
        { .compatible = "ti,ads1174" },
        { .compatible = "ti,ads1178" },
        { },
};
MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
#endif

static struct platform_driver ads117x_codec_driver = {
        .driver = {
                        .name = "ads117x-codec",
                        .of_match_table = of_match_ptr(ads117x_dt_ids),
        },

        .probe = ads117x_probe,
};

module_platform_driver(ads117x_codec_driver);

MODULE_DESCRIPTION("ASoC ads117x driver");
MODULE_AUTHOR("Graeme Gregory");
MODULE_LICENSE("GPL");