sound/soc/fsl/eukrea-tlv320.c - kernel/msm-4.9 - Gitiles

 /*
  * eukrea-tlv320.c  --  SoC audio for eukrea_cpuimxXX in I2S mode
  *
  * Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
  *
  * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
  * which is Copyright 2009 Simtec Electronics
  * and on sound/soc/imx/phycore-ac97.c which is
  * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
  *
  *  This program is free software; you can redistribute  it and/or modify it
  *  under  the terms of  the GNU General  Public License as published by the
  *  Free Software Foundation;  either version 2 of the  License, or (at your
  *  option) any later version.
  *
  */

 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/device.h>
 #include <linux/i2c.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <asm/mach-types.h>

 #include "../codecs/tlv320aic23.h"
 #include "imx-ssi.h"
 #include "fsl_ssi.h"
 #include "imx-audmux.h"

 #define CODEC_CLOCK 12000000

 static int eukrea_tlv320_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;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	int ret;

 	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
 				  SND_SOC_DAIFMT_NB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	/* fsl_ssi lacks the set_fmt ops. */
 	if (ret && ret != -ENOTSUPP) {
 		dev_err(cpu_dai->dev,
 			"Failed to set the cpu dai format.\n");
 		return ret;
 	}

 	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
 				  SND_SOC_DAIFMT_NB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	if (ret) {
 		dev_err(cpu_dai->dev,
 			"Failed to set the codec format.\n");
 		return ret;
 	}

 	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
 				     CODEC_CLOCK, SND_SOC_CLOCK_OUT);
 	if (ret) {
 		dev_err(cpu_dai->dev,
 			"Failed to set the codec sysclk.\n");
 		return ret;
 	}

 	snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);

 	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
 				SND_SOC_CLOCK_IN);
 	/* fsl_ssi lacks the set_sysclk ops */
 	if (ret && ret != -EINVAL) {
 		dev_err(cpu_dai->dev,
 			"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
 		return ret;
 	}

 	return 0;
 }

 static struct snd_soc_ops eukrea_tlv320_snd_ops = {
 	.hw_params	= eukrea_tlv320_hw_params,
 };

 static struct snd_soc_dai_link eukrea_tlv320_dai = {
 	.name		= "tlv320aic23",
 	.stream_name	= "TLV320AIC23",
 	.codec_dai_name	= "tlv320aic23-hifi",
 	.ops		= &eukrea_tlv320_snd_ops,
 };

 static struct snd_soc_card eukrea_tlv320 = {
 	.owner		= THIS_MODULE,
 	.dai_link	= &eukrea_tlv320_dai,
 	.num_links	= 1,
 };

 static int eukrea_tlv320_probe(struct platform_device *pdev)
 {
 	int ret;
 	int int_port = 0, ext_port;
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *ssi_np = NULL, *codec_np = NULL;

 	eukrea_tlv320.dev = &pdev->dev;
 	if (np) {
 		ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
 						 "eukrea,model");
 		if (ret) {
 			dev_err(&pdev->dev,
 				"eukrea,model node missing or invalid.\n");
 			goto err;
 		}

 		ssi_np = of_parse_phandle(pdev->dev.of_node,
 					  "ssi-controller", 0);
 		if (!ssi_np) {
 			dev_err(&pdev->dev,
 				"ssi-controller missing or invalid.\n");
 			ret = -ENODEV;
 			goto err;
 		}

 		codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
 		if (codec_np)
 			eukrea_tlv320_dai.codec_of_node = codec_np;
 		else
 			dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");

 		ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"fsl,mux-int-port node missing or invalid.\n");
 			return ret;
 		}
 		ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"fsl,mux-ext-port node missing or invalid.\n");
 			return ret;
 		}

 		/*
 		 * The port numbering in the hardware manual starts at 1, while
 		 * the audmux API expects it starts at 0.
 		 */
 		int_port--;
 		ext_port--;

 		eukrea_tlv320_dai.cpu_of_node = ssi_np;
 		eukrea_tlv320_dai.platform_of_node = ssi_np;
 	} else {
 		eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
 		eukrea_tlv320_dai.platform_name = "imx-ssi.0";
 		eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
 		eukrea_tlv320.name = "cpuimx-audio";
 	}

 	if (machine_is_eukrea_cpuimx27() ||
 	    of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
 		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_TFSDIR |
 			IMX_AUDMUX_V1_PCR_TCLKDIR |
 			IMX_AUDMUX_V1_PCR_RFSDIR |
 			IMX_AUDMUX_V1_PCR_RCLKDIR |
 			IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
 			IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
 			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
 		);
 		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
 		);
 	} else if (machine_is_eukrea_cpuimx25sd() ||
 		   machine_is_eukrea_cpuimx35sd() ||
 		   machine_is_eukrea_cpuimx51sd() ||
 		   of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
 		if (!np)
 			ext_port = machine_is_eukrea_cpuimx25sd() ?
 				4 : 3;

 		imx_audmux_v2_configure_port(int_port,
 			IMX_AUDMUX_V2_PTCR_SYN |
 			IMX_AUDMUX_V2_PTCR_TFSDIR |
 			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
 			IMX_AUDMUX_V2_PTCR_TCLKDIR |
 			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
 			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
 		);
 		imx_audmux_v2_configure_port(ext_port,
 			IMX_AUDMUX_V2_PTCR_SYN,
 			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
 		);
 	} else {
 		if (np) {
 			/* The eukrea,asoc-tlv320 driver was explicitely
 			 * requested (through the device tree).
 			 */
 			dev_err(&pdev->dev,
 				"Missing or invalid audmux DT node.\n");
 			return -ENODEV;
 		} else {
 			/* Return happy.
 			 * We might run on a totally different machine.
 			 */
 			return 0;
 		}
 	}

 	ret = snd_soc_register_card(&eukrea_tlv320);
 err:
 	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
 	of_node_put(ssi_np);

 	return ret;
 }

 static int eukrea_tlv320_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&eukrea_tlv320);

 	return 0;
 }

 static const struct of_device_id imx_tlv320_dt_ids[] = {
 	{ .compatible = "eukrea,asoc-tlv320"},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);

 static struct platform_driver eukrea_tlv320_driver = {
 	.driver = {
 		.name = "eukrea_tlv320",
 		.of_match_table = imx_tlv320_dt_ids,
 	},
 	.probe = eukrea_tlv320_probe,
 	.remove = eukrea_tlv320_remove,
 };

 module_platform_driver(eukrea_tlv320_driver);

 MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
 MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:eukrea_tlv320");
	/*
	* eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode
	*
	* Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
	*
	* based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
	* which is Copyright 2009 Simtec Electronics
	* and on sound/soc/imx/phycore-ac97.c which is
	* Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	*/

	#include <linux/errno.h>
	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/of.h>
	#include <linux/of_platform.h>
	#include <linux/device.h>
	#include <linux/i2c.h>
	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <asm/mach-types.h>

	#include "../codecs/tlv320aic23.h"
	#include "imx-ssi.h"
	#include "fsl_ssi.h"
	#include "imx-audmux.h"

	#define CODEC_CLOCK 12000000

	static int eukrea_tlv320_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;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int ret;

	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBM_CFM);
	/* fsl_ssi lacks the set_fmt ops. */
	if (ret && ret != -ENOTSUPP) {
	dev_err(cpu_dai->dev,
	"Failed to set the cpu dai format.\n");
	return ret;
	}

	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBM_CFM);
	if (ret) {
	dev_err(cpu_dai->dev,
	"Failed to set the codec format.\n");
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	CODEC_CLOCK, SND_SOC_CLOCK_OUT);
	if (ret) {
	dev_err(cpu_dai->dev,
	"Failed to set the codec sysclk.\n");
	return ret;
	}

	snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);

	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
	SND_SOC_CLOCK_IN);
	/* fsl_ssi lacks the set_sysclk ops */
	if (ret && ret != -EINVAL) {
	dev_err(cpu_dai->dev,
	"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
	return ret;
	}

	return 0;
	}

	static struct snd_soc_ops eukrea_tlv320_snd_ops = {
	.hw_params = eukrea_tlv320_hw_params,
	};

	static struct snd_soc_dai_link eukrea_tlv320_dai = {
	.name = "tlv320aic23",
	.stream_name = "TLV320AIC23",
	.codec_dai_name = "tlv320aic23-hifi",
	.ops = &eukrea_tlv320_snd_ops,
	};

	static struct snd_soc_card eukrea_tlv320 = {
	.owner = THIS_MODULE,
	.dai_link = &eukrea_tlv320_dai,
	.num_links = 1,
	};

	static int eukrea_tlv320_probe(struct platform_device *pdev)
	{
	int ret;
	int int_port = 0, ext_port;
	struct device_node *np = pdev->dev.of_node;
	struct device_node ssi_np = NULL, codec_np = NULL;

	eukrea_tlv320.dev = &pdev->dev;
	if (np) {
	ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
	"eukrea,model");
	if (ret) {
	dev_err(&pdev->dev,
	"eukrea,model node missing or invalid.\n");
	goto err;
	}

	ssi_np = of_parse_phandle(pdev->dev.of_node,
	"ssi-controller", 0);
	if (!ssi_np) {
	dev_err(&pdev->dev,
	"ssi-controller missing or invalid.\n");
	ret = -ENODEV;
	goto err;
	}

	codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
	if (codec_np)
	eukrea_tlv320_dai.codec_of_node = codec_np;
	else
	dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");

	ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
	if (ret) {
	dev_err(&pdev->dev,
	"fsl,mux-int-port node missing or invalid.\n");
	return ret;
	}
	ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
	if (ret) {
	dev_err(&pdev->dev,
	"fsl,mux-ext-port node missing or invalid.\n");
	return ret;
	}

	/*
	* The port numbering in the hardware manual starts at 1, while
	* the audmux API expects it starts at 0.
	*/
	int_port--;
	ext_port--;

	eukrea_tlv320_dai.cpu_of_node = ssi_np;
	eukrea_tlv320_dai.platform_of_node = ssi_np;
	} else {
	eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
	eukrea_tlv320_dai.platform_name = "imx-ssi.0";
	eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
	eukrea_tlv320.name = "cpuimx-audio";
	}

	if (machine_is_eukrea_cpuimx27() \|\|
	of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
	IMX_AUDMUX_V1_PCR_SYN \|
	IMX_AUDMUX_V1_PCR_TFSDIR \|
	IMX_AUDMUX_V1_PCR_TCLKDIR \|
	IMX_AUDMUX_V1_PCR_RFSDIR \|
	IMX_AUDMUX_V1_PCR_RCLKDIR \|
	IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
	);
	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
	IMX_AUDMUX_V1_PCR_SYN \|
	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
	);
	} else if (machine_is_eukrea_cpuimx25sd() \|\|
	machine_is_eukrea_cpuimx35sd() \|\|
	machine_is_eukrea_cpuimx51sd() \|\|
	of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
	if (!np)
	ext_port = machine_is_eukrea_cpuimx25sd() ?
	4 : 3;

	imx_audmux_v2_configure_port(int_port,
	IMX_AUDMUX_V2_PTCR_SYN \|
	IMX_AUDMUX_V2_PTCR_TFSDIR \|
	IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) \|
	IMX_AUDMUX_V2_PTCR_TCLKDIR \|
	IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
	IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
	);
	imx_audmux_v2_configure_port(ext_port,
	IMX_AUDMUX_V2_PTCR_SYN,
	IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
	);
	} else {
	if (np) {
	/* The eukrea,asoc-tlv320 driver was explicitely
	* requested (through the device tree).
	*/
	dev_err(&pdev->dev,
	"Missing or invalid audmux DT node.\n");
	return -ENODEV;
	} else {
	/* Return happy.
	* We might run on a totally different machine.
	*/
	return 0;
	}
	}

	ret = snd_soc_register_card(&eukrea_tlv320);
	err:
	if (ret)
	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
	of_node_put(ssi_np);

	return ret;
	}

	static int eukrea_tlv320_remove(struct platform_device *pdev)
	{
	snd_soc_unregister_card(&eukrea_tlv320);

	return 0;
	}

	static const struct of_device_id imx_tlv320_dt_ids[] = {
	{ .compatible = "eukrea,asoc-tlv320"},
	{ /* sentinel */ }
	};
	MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);

	static struct platform_driver eukrea_tlv320_driver = {
	.driver = {
	.name = "eukrea_tlv320",
	.of_match_table = imx_tlv320_dt_ids,
	},
	.probe = eukrea_tlv320_probe,
	.remove = eukrea_tlv320_remove,
	};

	module_platform_driver(eukrea_tlv320_driver);

	MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
	MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
	MODULE_LICENSE("GPL");
	MODULE_ALIAS("platform:eukrea_tlv320");