sound/soc/intel/boards/sof_realtek_common.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 //
 // Copyright(c) 2020 Intel Corporation. All rights reserved.

 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/soc-acpi.h>
 #include <sound/soc-dai.h>
 #include <sound/soc-dapm.h>
 #include <sound/sof.h>
 #include <uapi/sound/asound.h>
 #include "../../codecs/rt1011.h"
 #include "../../codecs/rt1015.h"
 #include "../../codecs/rt1308.h"
 #include "sof_realtek_common.h"

 /*
  * Current only 2-amp configuration is supported for rt1011
  */
 static const struct snd_soc_dapm_route speaker_map_lr[] = {
 	/* speaker */
 	{ "Left Spk", NULL, "Left SPO" },
 	{ "Right Spk", NULL, "Right SPO" },
 };

 /*
  * Make sure device's Unique ID follows this configuration:
  *
  * Two speakers:
  *         0: left, 1: right
  * Four speakers:
  *         0: Woofer left, 1: Woofer right
  *         2: Tweeter left, 3: Tweeter right
  */
 static struct snd_soc_codec_conf rt1011_codec_confs[] = {
 	{
 		.dlc = COMP_CODEC_CONF(RT1011_DEV0_NAME),
 		.name_prefix = "Left",
 	},
 	{
 		.dlc = COMP_CODEC_CONF(RT1011_DEV1_NAME),
 		.name_prefix = "Right",
 	},
 };

 static struct snd_soc_dai_link_component rt1011_dai_link_components[] = {
 	{
 		.name = RT1011_DEV0_NAME,
 		.dai_name = RT1011_CODEC_DAI,
 	},
 	{
 		.name = RT1011_DEV1_NAME,
 		.dai_name = RT1011_CODEC_DAI,
 	},
 };

 static const struct {
 	unsigned int tx;
 	unsigned int rx;
 } rt1011_tdm_mask[] = {
 	{.tx = 0x4, .rx = 0x1},
 	{.tx = 0x8, .rx = 0x2},
 };

 static int rt1011_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;
 	int srate, i, ret = 0;

 	srate = params_rate(params);

 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
 		/* 100 Fs to drive 24 bit data */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, RT1011_PLL1_S_BCLK,
 					  100 * srate, 256 * srate);
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "fail to set pll, ret %d\n",
 				ret);
 			return ret;
 		}

 		ret = snd_soc_dai_set_sysclk(codec_dai, RT1011_FS_SYS_PRE_S_PLL1,
 					     256 * srate, SND_SOC_CLOCK_IN);
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
 				ret);
 			return ret;
 		}

 		if (i >= ARRAY_SIZE(rt1011_tdm_mask)) {
 			dev_err(codec_dai->dev, "invalid codec index %d\n",
 				i);
 			return -ENODEV;
 		}

 		ret = snd_soc_dai_set_tdm_slot(codec_dai, rt1011_tdm_mask[i].tx,
 					       rt1011_tdm_mask[i].rx, 4,
 					       params_width(params));
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
 				ret);
 			return ret;
 		}
 	}

 	return 0;
 }

 static const struct snd_soc_ops rt1011_ops = {
 	.hw_params = rt1011_hw_params,
 };

 static int rt1011_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	int ret;

 	ret = snd_soc_dapm_add_routes(&card->dapm, speaker_map_lr,
 				      ARRAY_SIZE(speaker_map_lr));
 	if (ret)
 		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
 	return ret;
 }

 void sof_rt1011_dai_link(struct snd_soc_dai_link *link)
 {
 	link->codecs = rt1011_dai_link_components;
 	link->num_codecs = ARRAY_SIZE(rt1011_dai_link_components);
 	link->init = rt1011_init;
 	link->ops = &rt1011_ops;
 }
 EXPORT_SYMBOL_NS(sof_rt1011_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 void sof_rt1011_codec_conf(struct snd_soc_card *card)
 {
 	card->codec_conf = rt1011_codec_confs;
 	card->num_configs = ARRAY_SIZE(rt1011_codec_confs);
 }
 EXPORT_SYMBOL_NS(sof_rt1011_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 /*
  * rt1015:  i2c mode driver for ALC1015 and ALC1015Q
  * rt1015p: auto-mode driver for ALC1015, ALC1015Q, and ALC1015Q-VB
  *
  * For stereo output, there are always two amplifiers on the board.
  * However, the ACPI implements only one device instance (UID=0) if they
  * are sharing the same enable pin. The code will detect the number of
  * device instance and use corresponding DAPM structures for
  * initialization.
  */
 static const struct snd_soc_dapm_route rt1015p_1dev_dapm_routes[] = {
 	/* speaker */
 	{ "Left Spk", NULL, "Speaker" },
 	{ "Right Spk", NULL, "Speaker" },
 };

 static const struct snd_soc_dapm_route rt1015p_2dev_dapm_routes[] = {
 	/* speaker */
 	{ "Left Spk", NULL, "Left Speaker" },
 	{ "Right Spk", NULL, "Right Speaker" },
 };

 static struct snd_soc_codec_conf rt1015p_codec_confs[] = {
 	{
 		.dlc = COMP_CODEC_CONF(RT1015P_DEV0_NAME),
 		.name_prefix = "Left",
 	},
 	{
 		.dlc = COMP_CODEC_CONF(RT1015P_DEV1_NAME),
 		.name_prefix = "Right",
 	},
 };

 static struct snd_soc_dai_link_component rt1015p_dai_link_components[] = {
 	{
 		.name = RT1015P_DEV0_NAME,
 		.dai_name = RT1015P_CODEC_DAI,
 	},
 	{
 		.name = RT1015P_DEV1_NAME,
 		.dai_name = RT1015P_CODEC_DAI,
 	},
 };

 static int rt1015p_get_num_codecs(void)
 {
 	static int dev_num;

 	if (dev_num)
 		return dev_num;

 	if (!acpi_dev_present("RTL1015", "1", -1))
 		dev_num = 1;
 	else
 		dev_num = 2;

 	return dev_num;
 }

 static int rt1015p_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params)
 {
 	/* reserved for debugging purpose */

 	return 0;
 }

 static const struct snd_soc_ops rt1015p_ops = {
 	.hw_params = rt1015p_hw_params,
 };

 static int rt1015p_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	int ret;

 	if (rt1015p_get_num_codecs() == 1)
 		ret = snd_soc_dapm_add_routes(&card->dapm, rt1015p_1dev_dapm_routes,
 					      ARRAY_SIZE(rt1015p_1dev_dapm_routes));
 	else
 		ret = snd_soc_dapm_add_routes(&card->dapm, rt1015p_2dev_dapm_routes,
 					      ARRAY_SIZE(rt1015p_2dev_dapm_routes));
 	if (ret)
 		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
 	return ret;
 }

 void sof_rt1015p_dai_link(struct snd_soc_dai_link *link)
 {
 	link->codecs = rt1015p_dai_link_components;
 	link->num_codecs = rt1015p_get_num_codecs();
 	link->init = rt1015p_init;
 	link->ops = &rt1015p_ops;
 }
 EXPORT_SYMBOL_NS(sof_rt1015p_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 void sof_rt1015p_codec_conf(struct snd_soc_card *card)
 {
 	if (rt1015p_get_num_codecs() == 1)
 		return;

 	card->codec_conf = rt1015p_codec_confs;
 	card->num_configs = ARRAY_SIZE(rt1015p_codec_confs);
 }
 EXPORT_SYMBOL_NS(sof_rt1015p_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 /*
  * RT1015 audio amplifier
  */

 static const struct {
 	unsigned int tx;
 	unsigned int rx;
 } rt1015_tdm_mask[] = {
 	{.tx = 0x0, .rx = 0x1},
 	{.tx = 0x0, .rx = 0x2},
 };

 static int rt1015_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_link *dai_link = rtd->dai_link;
 	struct snd_soc_dai *codec_dai;
 	int i, clk_freq, ret;

 	clk_freq = sof_dai_get_bclk(rtd);

 	if (clk_freq <= 0) {
 		dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq);
 		return -EINVAL;
 	}

 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
 		ret = snd_soc_dai_set_pll(codec_dai, 0, RT1015_PLL_S_BCLK,
 					  clk_freq,
 					  params_rate(params) * 256);
 		if (ret) {
 			dev_err(codec_dai->dev, "fail to set pll, ret %d\n",
 				ret);
 			return ret;
 		}

 		ret = snd_soc_dai_set_sysclk(codec_dai, RT1015_SCLK_S_PLL,
 					     params_rate(params) * 256,
 					     SND_SOC_CLOCK_IN);
 		if (ret) {
 			dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
 				ret);
 			return ret;
 		}

 		switch (dai_link->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 		case SND_SOC_DAIFMT_DSP_A:
 		case SND_SOC_DAIFMT_DSP_B:
 			/* 4-slot TDM */
 			ret = snd_soc_dai_set_tdm_slot(codec_dai,
 						       rt1015_tdm_mask[i].tx,
 						       rt1015_tdm_mask[i].rx,
 						       4,
 						       params_width(params));
 			if (ret < 0) {
 				dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
 					ret);
 				return ret;
 			}
 			break;
 		default:
 			dev_dbg(codec_dai->dev, "codec is in I2S mode\n");
 			break;
 		}
 	}

 	return ret;
 }

 static struct snd_soc_ops rt1015_ops = {
 	.hw_params = rt1015_hw_params,
 };

 static struct snd_soc_codec_conf rt1015_amp_conf[] = {
 	{
 		.dlc = COMP_CODEC_CONF(RT1015_DEV0_NAME),
 		.name_prefix = "Left",
 	},
 	{
 		.dlc = COMP_CODEC_CONF(RT1015_DEV1_NAME),
 		.name_prefix = "Right",
 	},
 };

 static struct snd_soc_dai_link_component rt1015_components[] = {
 	{
 		.name = RT1015_DEV0_NAME,
 		.dai_name = RT1015_CODEC_DAI,
 	},
 	{
 		.name = RT1015_DEV1_NAME,
 		.dai_name = RT1015_CODEC_DAI,
 	},
 };

 static int speaker_codec_init_lr(struct snd_soc_pcm_runtime *rtd)
 {
 	return snd_soc_dapm_add_routes(&rtd->card->dapm, speaker_map_lr,
 					ARRAY_SIZE(speaker_map_lr));
 }

 void sof_rt1015_codec_conf(struct snd_soc_card *card)
 {
 	card->codec_conf = rt1015_amp_conf;
 	card->num_configs = ARRAY_SIZE(rt1015_amp_conf);
 }
 EXPORT_SYMBOL_NS(sof_rt1015_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 void sof_rt1015_dai_link(struct snd_soc_dai_link *link)
 {
 	link->codecs = rt1015_components;
 	link->num_codecs = ARRAY_SIZE(rt1015_components);
 	link->init = speaker_codec_init_lr;
 	link->ops = &rt1015_ops;
 }
 EXPORT_SYMBOL_NS(sof_rt1015_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 /*
  * RT1308 audio amplifier
  */
 static const struct snd_kcontrol_new rt1308_kcontrols[] = {
 	SOC_DAPM_PIN_SWITCH("Speakers"),
 };

 static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = {
 	SND_SOC_DAPM_SPK("Speakers", NULL),
 };

 static const struct snd_soc_dapm_route rt1308_dapm_routes[] = {
 	/* speaker */
 	{"Speakers", NULL, "SPOL"},
 	{"Speakers", NULL, "SPOR"},
 };

 static struct snd_soc_dai_link_component rt1308_components[] = {
 	{
 		.name = RT1308_DEV0_NAME,
 		.dai_name = RT1308_CODEC_DAI,
 	}
 };

 static int rt1308_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	int ret;

 	ret = snd_soc_dapm_new_controls(&card->dapm, rt1308_dapm_widgets,
 					ARRAY_SIZE(rt1308_dapm_widgets));
 	if (ret) {
 		dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_add_card_controls(card, rt1308_kcontrols,
 					ARRAY_SIZE(rt1308_kcontrols));
 	if (ret) {
 		dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_dapm_add_routes(&card->dapm, rt1308_dapm_routes,
 				      ARRAY_SIZE(rt1308_dapm_routes));

 	if (ret)
 		dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret);

 	return ret;
 }

 static int rt1308_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_card *card = rtd->card;
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	int clk_id, clk_freq, pll_out;
 	int ret;

 	clk_id = RT1308_PLL_S_MCLK;
 	/* get the tplg configured mclk. */
 	clk_freq = sof_dai_get_mclk(rtd);

 	pll_out = params_rate(params) * 512;

 	/* Set rt1308 pll */
 	ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
 	if (ret < 0) {
 		dev_err(card->dev, "Failed to set RT1308 PLL: %d\n", ret);
 		return ret;
 	}

 	/* Set rt1308 sysclk */
 	ret = snd_soc_dai_set_sysclk(codec_dai, RT1308_FS_SYS_S_PLL, pll_out,
 				     SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(card->dev, "Failed to set RT1308 SYSCLK: %d\n", ret);

 	return ret;
 }

 static const struct snd_soc_ops rt1308_ops = {
 	.hw_params = rt1308_hw_params,
 };

 void sof_rt1308_dai_link(struct snd_soc_dai_link *link)
 {
 	link->codecs = rt1308_components;
 	link->num_codecs = ARRAY_SIZE(rt1308_components);
 	link->init = rt1308_init;
 	link->ops = &rt1308_ops;
 }
 EXPORT_SYMBOL_NS(sof_rt1308_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 /*
  * 2-amp Configuration for RT1019
  */

 static const struct snd_soc_dapm_route rt1019p_dapm_routes[] = {
 	/* speaker */
 	{ "Left Spk", NULL, "Speaker" },
 	{ "Right Spk", NULL, "Speaker" },
 };

 static struct snd_soc_dai_link_component rt1019p_components[] = {
 	{
 		.name = RT1019P_DEV0_NAME,
 		.dai_name = RT1019P_CODEC_DAI,
 	},
 };

 static int rt1019p_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	int ret;

 	ret = snd_soc_dapm_add_routes(&card->dapm, rt1019p_dapm_routes,
 				      ARRAY_SIZE(rt1019p_dapm_routes));
 	if (ret) {
 		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
 		return ret;
 	}
 	return ret;
 }

 void sof_rt1019p_dai_link(struct snd_soc_dai_link *link)
 {
 	link->codecs = rt1019p_components;
 	link->num_codecs = ARRAY_SIZE(rt1019p_components);
 	link->init = rt1019p_init;
 }
 EXPORT_SYMBOL_NS(sof_rt1019p_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

 MODULE_DESCRIPTION("ASoC Intel SOF Realtek helpers");
 MODULE_LICENSE("GPL");
	// SPDX-License-Identifier: GPL-2.0-only
	//
	// Copyright(c) 2020 Intel Corporation. All rights reserved.

	#include <linux/device.h>
	#include <linux/kernel.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>
	#include <sound/soc.h>
	#include <sound/soc-acpi.h>
	#include <sound/soc-dai.h>
	#include <sound/soc-dapm.h>
	#include <sound/sof.h>
	#include <uapi/sound/asound.h>
	#include "../../codecs/rt1011.h"
	#include "../../codecs/rt1015.h"
	#include "../../codecs/rt1308.h"
	#include "sof_realtek_common.h"

	/*
	* Current only 2-amp configuration is supported for rt1011
	*/
	static const struct snd_soc_dapm_route speaker_map_lr[] = {
	/* speaker */
	{ "Left Spk", NULL, "Left SPO" },
	{ "Right Spk", NULL, "Right SPO" },
	};

	/*
	* Make sure device's Unique ID follows this configuration:
	*
	* Two speakers:
	* 0: left, 1: right
	* Four speakers:
	* 0: Woofer left, 1: Woofer right
	* 2: Tweeter left, 3: Tweeter right
	*/
	static struct snd_soc_codec_conf rt1011_codec_confs[] = {
	{
	.dlc = COMP_CODEC_CONF(RT1011_DEV0_NAME),
	.name_prefix = "Left",
	},
	{
	.dlc = COMP_CODEC_CONF(RT1011_DEV1_NAME),
	.name_prefix = "Right",
	},
	};

	static struct snd_soc_dai_link_component rt1011_dai_link_components[] = {
	{
	.name = RT1011_DEV0_NAME,
	.dai_name = RT1011_CODEC_DAI,
	},
	{
	.name = RT1011_DEV1_NAME,
	.dai_name = RT1011_CODEC_DAI,
	},
	};

	static const struct {
	unsigned int tx;
	unsigned int rx;
	} rt1011_tdm_mask[] = {
	{.tx = 0x4, .rx = 0x1},
	{.tx = 0x8, .rx = 0x2},
	};

	static int rt1011_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;
	int srate, i, ret = 0;

	srate = params_rate(params);

	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	/* 100 Fs to drive 24 bit data */
	ret = snd_soc_dai_set_pll(codec_dai, 0, RT1011_PLL1_S_BCLK,
	100 * srate, 256 * srate);
	if (ret < 0) {
	dev_err(codec_dai->dev, "fail to set pll, ret %d\n",
	ret);
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, RT1011_FS_SYS_PRE_S_PLL1,
	256 * srate, SND_SOC_CLOCK_IN);
	if (ret < 0) {
	dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
	ret);
	return ret;
	}

	if (i >= ARRAY_SIZE(rt1011_tdm_mask)) {
	dev_err(codec_dai->dev, "invalid codec index %d\n",
	i);
	return -ENODEV;
	}

	ret = snd_soc_dai_set_tdm_slot(codec_dai, rt1011_tdm_mask[i].tx,
	rt1011_tdm_mask[i].rx, 4,
	params_width(params));
	if (ret < 0) {
	dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
	ret);
	return ret;
	}
	}

	return 0;
	}

	static const struct snd_soc_ops rt1011_ops = {
	.hw_params = rt1011_hw_params,
	};

	static int rt1011_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	int ret;

	ret = snd_soc_dapm_add_routes(&card->dapm, speaker_map_lr,
	ARRAY_SIZE(speaker_map_lr));
	if (ret)
	dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
	return ret;
	}

	void sof_rt1011_dai_link(struct snd_soc_dai_link *link)
	{
	link->codecs = rt1011_dai_link_components;
	link->num_codecs = ARRAY_SIZE(rt1011_dai_link_components);
	link->init = rt1011_init;
	link->ops = &rt1011_ops;
	}
	EXPORT_SYMBOL_NS(sof_rt1011_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	void sof_rt1011_codec_conf(struct snd_soc_card *card)
	{
	card->codec_conf = rt1011_codec_confs;
	card->num_configs = ARRAY_SIZE(rt1011_codec_confs);
	}
	EXPORT_SYMBOL_NS(sof_rt1011_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	/*
	* rt1015: i2c mode driver for ALC1015 and ALC1015Q
	* rt1015p: auto-mode driver for ALC1015, ALC1015Q, and ALC1015Q-VB
	*
	* For stereo output, there are always two amplifiers on the board.
	* However, the ACPI implements only one device instance (UID=0) if they
	* are sharing the same enable pin. The code will detect the number of
	* device instance and use corresponding DAPM structures for
	* initialization.
	*/
	static const struct snd_soc_dapm_route rt1015p_1dev_dapm_routes[] = {
	/* speaker */
	{ "Left Spk", NULL, "Speaker" },
	{ "Right Spk", NULL, "Speaker" },
	};

	static const struct snd_soc_dapm_route rt1015p_2dev_dapm_routes[] = {
	/* speaker */
	{ "Left Spk", NULL, "Left Speaker" },
	{ "Right Spk", NULL, "Right Speaker" },
	};

	static struct snd_soc_codec_conf rt1015p_codec_confs[] = {
	{
	.dlc = COMP_CODEC_CONF(RT1015P_DEV0_NAME),
	.name_prefix = "Left",
	},
	{
	.dlc = COMP_CODEC_CONF(RT1015P_DEV1_NAME),
	.name_prefix = "Right",
	},
	};

	static struct snd_soc_dai_link_component rt1015p_dai_link_components[] = {
	{
	.name = RT1015P_DEV0_NAME,
	.dai_name = RT1015P_CODEC_DAI,
	},
	{
	.name = RT1015P_DEV1_NAME,
	.dai_name = RT1015P_CODEC_DAI,
	},
	};

	static int rt1015p_get_num_codecs(void)
	{
	static int dev_num;

	if (dev_num)
	return dev_num;

	if (!acpi_dev_present("RTL1015", "1", -1))
	dev_num = 1;
	else
	dev_num = 2;

	return dev_num;
	}

	static int rt1015p_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	/* reserved for debugging purpose */

	return 0;
	}

	static const struct snd_soc_ops rt1015p_ops = {
	.hw_params = rt1015p_hw_params,
	};

	static int rt1015p_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	int ret;

	if (rt1015p_get_num_codecs() == 1)
	ret = snd_soc_dapm_add_routes(&card->dapm, rt1015p_1dev_dapm_routes,
	ARRAY_SIZE(rt1015p_1dev_dapm_routes));
	else
	ret = snd_soc_dapm_add_routes(&card->dapm, rt1015p_2dev_dapm_routes,
	ARRAY_SIZE(rt1015p_2dev_dapm_routes));
	if (ret)
	dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
	return ret;
	}

	void sof_rt1015p_dai_link(struct snd_soc_dai_link *link)
	{
	link->codecs = rt1015p_dai_link_components;
	link->num_codecs = rt1015p_get_num_codecs();
	link->init = rt1015p_init;
	link->ops = &rt1015p_ops;
	}
	EXPORT_SYMBOL_NS(sof_rt1015p_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	void sof_rt1015p_codec_conf(struct snd_soc_card *card)
	{
	if (rt1015p_get_num_codecs() == 1)
	return;

	card->codec_conf = rt1015p_codec_confs;
	card->num_configs = ARRAY_SIZE(rt1015p_codec_confs);
	}
	EXPORT_SYMBOL_NS(sof_rt1015p_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	/*
	* RT1015 audio amplifier
	*/

	static const struct {
	unsigned int tx;
	unsigned int rx;
	} rt1015_tdm_mask[] = {
	{.tx = 0x0, .rx = 0x1},
	{.tx = 0x0, .rx = 0x2},
	};

	static int rt1015_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_link *dai_link = rtd->dai_link;
	struct snd_soc_dai *codec_dai;
	int i, clk_freq, ret;

	clk_freq = sof_dai_get_bclk(rtd);

	if (clk_freq <= 0) {
	dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq);
	return -EINVAL;
	}

	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	ret = snd_soc_dai_set_pll(codec_dai, 0, RT1015_PLL_S_BCLK,
	clk_freq,
	params_rate(params) * 256);
	if (ret) {
	dev_err(codec_dai->dev, "fail to set pll, ret %d\n",
	ret);
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, RT1015_SCLK_S_PLL,
	params_rate(params) * 256,
	SND_SOC_CLOCK_IN);
	if (ret) {
	dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
	ret);
	return ret;
	}

	switch (dai_link->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
	case SND_SOC_DAIFMT_DSP_B:
	/* 4-slot TDM */
	ret = snd_soc_dai_set_tdm_slot(codec_dai,
	rt1015_tdm_mask[i].tx,
	rt1015_tdm_mask[i].rx,
	4,
	params_width(params));
	if (ret < 0) {
	dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
	ret);
	return ret;
	}
	break;
	default:
	dev_dbg(codec_dai->dev, "codec is in I2S mode\n");
	break;
	}
	}

	return ret;
	}

	static struct snd_soc_ops rt1015_ops = {
	.hw_params = rt1015_hw_params,
	};

	static struct snd_soc_codec_conf rt1015_amp_conf[] = {
	{
	.dlc = COMP_CODEC_CONF(RT1015_DEV0_NAME),
	.name_prefix = "Left",
	},
	{
	.dlc = COMP_CODEC_CONF(RT1015_DEV1_NAME),
	.name_prefix = "Right",
	},
	};

	static struct snd_soc_dai_link_component rt1015_components[] = {
	{
	.name = RT1015_DEV0_NAME,
	.dai_name = RT1015_CODEC_DAI,
	},
	{
	.name = RT1015_DEV1_NAME,
	.dai_name = RT1015_CODEC_DAI,
	},
	};

	static int speaker_codec_init_lr(struct snd_soc_pcm_runtime *rtd)
	{
	return snd_soc_dapm_add_routes(&rtd->card->dapm, speaker_map_lr,
	ARRAY_SIZE(speaker_map_lr));
	}

	void sof_rt1015_codec_conf(struct snd_soc_card *card)
	{
	card->codec_conf = rt1015_amp_conf;
	card->num_configs = ARRAY_SIZE(rt1015_amp_conf);
	}
	EXPORT_SYMBOL_NS(sof_rt1015_codec_conf, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	void sof_rt1015_dai_link(struct snd_soc_dai_link *link)
	{
	link->codecs = rt1015_components;
	link->num_codecs = ARRAY_SIZE(rt1015_components);
	link->init = speaker_codec_init_lr;
	link->ops = &rt1015_ops;
	}
	EXPORT_SYMBOL_NS(sof_rt1015_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	/*
	* RT1308 audio amplifier
	*/
	static const struct snd_kcontrol_new rt1308_kcontrols[] = {
	SOC_DAPM_PIN_SWITCH("Speakers"),
	};

	static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Speakers", NULL),
	};

	static const struct snd_soc_dapm_route rt1308_dapm_routes[] = {
	/* speaker */
	{"Speakers", NULL, "SPOL"},
	{"Speakers", NULL, "SPOR"},
	};

	static struct snd_soc_dai_link_component rt1308_components[] = {
	{
	.name = RT1308_DEV0_NAME,
	.dai_name = RT1308_CODEC_DAI,
	}
	};

	static int rt1308_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	int ret;

	ret = snd_soc_dapm_new_controls(&card->dapm, rt1308_dapm_widgets,
	ARRAY_SIZE(rt1308_dapm_widgets));
	if (ret) {
	dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret);
	return ret;
	}

	ret = snd_soc_add_card_controls(card, rt1308_kcontrols,
	ARRAY_SIZE(rt1308_kcontrols));
	if (ret) {
	dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret);
	return ret;
	}

	ret = snd_soc_dapm_add_routes(&card->dapm, rt1308_dapm_routes,
	ARRAY_SIZE(rt1308_dapm_routes));

	if (ret)
	dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret);

	return ret;
	}

	static int rt1308_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_card *card = rtd->card;
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	int clk_id, clk_freq, pll_out;
	int ret;

	clk_id = RT1308_PLL_S_MCLK;
	/* get the tplg configured mclk. */
	clk_freq = sof_dai_get_mclk(rtd);

	pll_out = params_rate(params) * 512;

	/* Set rt1308 pll */
	ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
	if (ret < 0) {
	dev_err(card->dev, "Failed to set RT1308 PLL: %d\n", ret);
	return ret;
	}

	/* Set rt1308 sysclk */
	ret = snd_soc_dai_set_sysclk(codec_dai, RT1308_FS_SYS_S_PLL, pll_out,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	dev_err(card->dev, "Failed to set RT1308 SYSCLK: %d\n", ret);

	return ret;
	}

	static const struct snd_soc_ops rt1308_ops = {
	.hw_params = rt1308_hw_params,
	};

	void sof_rt1308_dai_link(struct snd_soc_dai_link *link)
	{
	link->codecs = rt1308_components;
	link->num_codecs = ARRAY_SIZE(rt1308_components);
	link->init = rt1308_init;
	link->ops = &rt1308_ops;
	}
	EXPORT_SYMBOL_NS(sof_rt1308_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	/*
	* 2-amp Configuration for RT1019
	*/

	static const struct snd_soc_dapm_route rt1019p_dapm_routes[] = {
	/* speaker */
	{ "Left Spk", NULL, "Speaker" },
	{ "Right Spk", NULL, "Speaker" },
	};

	static struct snd_soc_dai_link_component rt1019p_components[] = {
	{
	.name = RT1019P_DEV0_NAME,
	.dai_name = RT1019P_CODEC_DAI,
	},
	};

	static int rt1019p_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	int ret;

	ret = snd_soc_dapm_add_routes(&card->dapm, rt1019p_dapm_routes,
	ARRAY_SIZE(rt1019p_dapm_routes));
	if (ret) {
	dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
	return ret;
	}
	return ret;
	}

	void sof_rt1019p_dai_link(struct snd_soc_dai_link *link)
	{
	link->codecs = rt1019p_components;
	link->num_codecs = ARRAY_SIZE(rt1019p_components);
	link->init = rt1019p_init;
	}
	EXPORT_SYMBOL_NS(sof_rt1019p_dai_link, SND_SOC_INTEL_SOF_REALTEK_COMMON);

	MODULE_DESCRIPTION("ASoC Intel SOF Realtek helpers");
	MODULE_LICENSE("GPL");