// SPDX-License-Identifier: GPL-2.0-or-later

  /*
   * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
   *
   * Copyright (C) 2008 Bluewater Systems Ltd

   * Author: Ryan Mallon

   */
  
  #include <linux/platform_device.h>

  #include <linux/module.h>

  #include <linux/soc/cirrus/ep93xx.h>

  #include <sound/core.h>
  #include <sound/pcm.h>
  #include <sound/soc.h>

  
  #include <asm/mach-types.h>

  
  #include "../codecs/tlv320aic23.h"

  
  #define CODEC_CLOCK 5644800
  
  static int snappercl15_hw_params(struct snd_pcm_substream *substream,
  				 struct snd_pcm_hw_params *params)
  {

  	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);

  	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

  	int err;

  	err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, 
  				     SND_SOC_CLOCK_IN);
  	if (err)
  		return err;
  
  	err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, 
  				     SND_SOC_CLOCK_OUT);
  	if (err)
  		return err;
  
  	return 0;
  }

  static const struct snd_soc_ops snappercl15_ops = {

  	.hw_params	= snappercl15_hw_params,
  };
  
  static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
  	SND_SOC_DAPM_HP("Headphone Jack", NULL),
  	SND_SOC_DAPM_LINE("Line In", NULL),
  	SND_SOC_DAPM_MIC("Mic Jack", NULL),
  };
  
  static const struct snd_soc_dapm_route audio_map[] = {
  	{"Headphone Jack", NULL, "LHPOUT"},
  	{"Headphone Jack", NULL, "RHPOUT"},
  
  	{"LLINEIN", NULL, "Line In"},
  	{"RLINEIN", NULL, "Line In"},
  
  	{"MICIN", NULL, "Mic Jack"},
  };

  SND_SOC_DAILINK_DEFS(aic23,
  	DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-i2s")),
  	DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic23-codec.0-001a",
  				      "tlv320aic23-hifi")),
  	DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-i2s")));

  static struct snd_soc_dai_link snappercl15_dai = {
  	.name		= "tlv320aic23",
  	.stream_name	= "AIC23",

  	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |

  			  SND_SOC_DAIFMT_CBS_CFS,

  	.ops		= &snappercl15_ops,

  	SND_SOC_DAILINK_REG(aic23),

  };
  
  static struct snd_soc_card snd_soc_snappercl15 = {
  	.name		= "Snapper CL15",

  	.owner		= THIS_MODULE,

  	.dai_link	= &snappercl15_dai,
  	.num_links	= 1,

  
  	.dapm_widgets		= tlv320aic23_dapm_widgets,
  	.num_dapm_widgets	= ARRAY_SIZE(tlv320aic23_dapm_widgets),
  	.dapm_routes		= audio_map,
  	.num_dapm_routes	= ARRAY_SIZE(audio_map),

  };

  static int snappercl15_probe(struct platform_device *pdev)

  {

  	struct snd_soc_card *card = &snd_soc_snappercl15;

  	int ret;

  	ret = ep93xx_i2s_acquire();

  	if (ret)
  		return ret;

  	card->dev = &pdev->dev;
  
  	ret = snd_soc_register_card(card);
  	if (ret) {
  		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d
  ",
  			ret);
  		ep93xx_i2s_release();
  	}

  
  	return ret;
  }

  static int snappercl15_remove(struct platform_device *pdev)

  {

  	struct snd_soc_card *card = platform_get_drvdata(pdev);
  
  	snd_soc_unregister_card(card);

  	ep93xx_i2s_release();

  
  	return 0;
  }
  
  static struct platform_driver snappercl15_driver = {
  	.driver		= {
  		.name	= "snappercl15-audio",

  	},
  	.probe		= snappercl15_probe,

  	.remove		= snappercl15_remove,

  };

  module_platform_driver(snappercl15_driver);

  MODULE_AUTHOR("Ryan Mallon");

  MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
  MODULE_LICENSE("GPL");

  MODULE_ALIAS("platform:snappercl15-audio");