[mirror_ubuntu-bionic-kernel.git] / sound / soc / imx / eukrea-tlv320.c

/*
 * 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/module.h>
#include <linux/moduleparam.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 "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);
	if (ret) {
		pr_err("%s: failed set cpu dai format\n", __func__);
		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) {
		pr_err("%s: failed set codec dai format\n", __func__);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
				     CODEC_CLOCK, SND_SOC_CLOCK_OUT);
	if (ret) {
		pr_err("%s: failed setting codec sysclk\n", __func__);
		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);
	if (ret) {
		pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\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",
	.platform_name	= "imx-fiq-pcm-audio.0",
	.codec_name	= "tlv320aic23-codec.0-001a",
	.cpu_dai_name	= "imx-ssi.0",
	.ops		= &eukrea_tlv320_snd_ops,
};

static struct snd_soc_card eukrea_tlv320 = {
	.name		= "cpuimx-audio",
	.owner		= THIS_MODULE,
	.dai_link	= &eukrea_tlv320_dai,
	.num_links	= 1,
};

static struct platform_device *eukrea_tlv320_snd_device;

static int __init eukrea_tlv320_init(void)
{
	int ret;
	int int_port = 0, ext_port;

	if (machine_is_eukrea_cpuimx27()) {
		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()) {
		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 {
		/* return happy. We might run on a totally different machine */
		return 0;
	}

	eukrea_tlv320_snd_device = platform_device_alloc("soc-audio", -1);
	if (!eukrea_tlv320_snd_device)
		return -ENOMEM;

	platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320);
	ret = platform_device_add(eukrea_tlv320_snd_device);

	if (ret) {
		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
		platform_device_put(eukrea_tlv320_snd_device);
	}

	return ret;
}

static void __exit eukrea_tlv320_exit(void)
{
	platform_device_unregister(eukrea_tlv320_snd_device);
}

module_init(eukrea_tlv320_init);
module_exit(eukrea_tlv320_exit);

MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
91157888 EB	1	/*
	2	* eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode
	3	*
	4	* Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
	5	*
	6	* based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
	7	* which is Copyright 2009 Simtec Electronics
	8	* and on sound/soc/imx/phycore-ac97.c which is
	9	* Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
	10	*
	11	* This program is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by the
	13	* Free Software Foundation; either version 2 of the License, or (at your
	14	* option) any later version.
	15	*
	16	*/
	17
	18	#include <linux/module.h>
	19	#include <linux/moduleparam.h>
	20	#include <linux/device.h>
	21	#include <linux/i2c.h>
	22	#include <sound/core.h>
	23	#include <sound/pcm.h>
	24	#include <sound/soc.h>
91157888 EB	25	#include <asm/mach-types.h>
	26
	27	#include "../codecs/tlv320aic23.h"
	28	#include "imx-ssi.h"
3c77c29c	29	#include "imx-audmux.h"
91157888 EB	30
	31	#define CODEC_CLOCK 12000000
	32
	33	static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
	34	struct snd_pcm_hw_params *params)
	35	{
	36	struct snd_soc_pcm_runtime *rtd = substream->private_data;
add330ec SH	37	struct snd_soc_dai *codec_dai = rtd->codec_dai;
add330ec SH	38	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
91157888 EB	39	int ret;
	40
	41	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	42	SND_SOC_DAIFMT_NB_NF \|
	43	SND_SOC_DAIFMT_CBM_CFM);
	44	if (ret) {
	45	pr_err("%s: failed set cpu dai format\n", __func__);
	46	return ret;
	47	}
	48
	49	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	50	SND_SOC_DAIFMT_NB_NF \|
	51	SND_SOC_DAIFMT_CBM_CFM);
	52	if (ret) {
	53	pr_err("%s: failed set codec dai format\n", __func__);
	54	return ret;
	55	}
	56
	57	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	58	CODEC_CLOCK, SND_SOC_CLOCK_OUT);
	59	if (ret) {
	60	pr_err("%s: failed setting codec sysclk\n", __func__);
	61	return ret;
	62	}
43793207	63	snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
91157888 EB	64
	65	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
	66	SND_SOC_CLOCK_IN);
	67	if (ret) {
	68	pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
	69	return ret;
	70	}
	71
	72	return 0;
	73	}
	74
	75	static struct snd_soc_ops eukrea_tlv320_snd_ops = {
	76	.hw_params = eukrea_tlv320_hw_params,
	77	};
	78
	79	static struct snd_soc_dai_link eukrea_tlv320_dai = {
	80	.name = "tlv320aic23",
	81	.stream_name = "TLV320AIC23",
add330ec	82	.codec_dai_name = "tlv320aic23-hifi",
43c63188	83	.platform_name = "imx-fiq-pcm-audio.0",
f0fba2ad	84	.codec_name = "tlv320aic23-codec.0-001a",
add330ec	85	.cpu_dai_name = "imx-ssi.0",
91157888 EB	86	.ops = &eukrea_tlv320_snd_ops,
	87	};
	88
	89	static struct snd_soc_card eukrea_tlv320 = {
	90	.name = "cpuimx-audio",
6aff8ccb	91	.owner = THIS_MODULE,
91157888 EB	92	.dai_link = &eukrea_tlv320_dai,
	93	.num_links = 1,
	94	};
	95
91157888 EB	96	static struct platform_device *eukrea_tlv320_snd_device;
	97
	98	static int __init eukrea_tlv320_init(void)
	99	{
	100	int ret;
60282ede SG	101	int int_port = 0, ext_port;
	102
	103	if (machine_is_eukrea_cpuimx27()) {
af4872fb SG	104	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
	105	IMX_AUDMUX_V1_PCR_SYN \|
	106	IMX_AUDMUX_V1_PCR_TFSDIR \|
	107	IMX_AUDMUX_V1_PCR_TCLKDIR \|
	108	IMX_AUDMUX_V1_PCR_RFSDIR \|
	109	IMX_AUDMUX_V1_PCR_RCLKDIR \|
	110	IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	111	IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	112	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
60282ede	113	);
af4872fb SG	114	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
	115	IMX_AUDMUX_V1_PCR_SYN \|
	116	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
60282ede SG	117	);
	118	} else if (machine_is_eukrea_cpuimx25sd() \|\|
	119	machine_is_eukrea_cpuimx35sd() \|\|
	120	machine_is_eukrea_cpuimx51sd()) {
	121	ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3;
af4872fb SG	122	imx_audmux_v2_configure_port(int_port,
	123	IMX_AUDMUX_V2_PTCR_SYN \|
	124	IMX_AUDMUX_V2_PTCR_TFSDIR \|
	125	IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) \|
	126	IMX_AUDMUX_V2_PTCR_TCLKDIR \|
	127	IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
	128	IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
60282ede	129	);
af4872fb SG	130	imx_audmux_v2_configure_port(ext_port,
	131	IMX_AUDMUX_V2_PTCR_SYN,
	132	IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
60282ede SG	133	);
60282ede SG	134	} else {
91157888 EB	135	/* return happy. We might run on a totally different machine */
91157888 EB	136	return 0;
60282ede	137	}
91157888 EB	138
	139	eukrea_tlv320_snd_device = platform_device_alloc("soc-audio", -1);
	140	if (!eukrea_tlv320_snd_device)
	141	return -ENOMEM;
	142
f0fba2ad	143	platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320);
91157888 EB	144	ret = platform_device_add(eukrea_tlv320_snd_device);
	145
	146	if (ret) {
	147	printk(KERN_ERR "ASoC: Platform device allocation failed\n");
	148	platform_device_put(eukrea_tlv320_snd_device);
	149	}
	150
	151	return ret;
	152	}
	153
	154	static void __exit eukrea_tlv320_exit(void)
	155	{
	156	platform_device_unregister(eukrea_tlv320_snd_device);
	157	}
	158
	159	module_init(eukrea_tlv320_init);
	160	module_exit(eukrea_tlv320_exit);
	161
	162	MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
	163	MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
	164	MODULE_LICENSE("GPL");