[mirror_ubuntu-zesty-kernel.git] / sound / soc / omap / omap3evm.c

/*
 * omap3evm.c  -- ALSA SoC support for OMAP3 EVM
 *
 * Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
 *
 * Based on sound/soc/omap/beagle.c by Steve Sakoman
 *
 * Copyright (C) 2008 Texas Instruments, Incorporated
 *
 * 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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
 * whether express or implied; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 */

#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <mach/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/twl4030.h"

static int omap3evm_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->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	int ret;

	/* Set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai,
				  SND_SOC_DAIFMT_I2S |
				  SND_SOC_DAIFMT_NB_NF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0) {
		printk(KERN_ERR "Can't set codec DAI configuration\n");
		return ret;
	}

	/* Set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai,
				  SND_SOC_DAIFMT_I2S |
				  SND_SOC_DAIFMT_NB_NF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0) {
		printk(KERN_ERR "Can't set cpu DAI configuration\n");
		return ret;
	}

	/* Set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		printk(KERN_ERR "Can't set codec system clock\n");
		return ret;
	}

	return 0;
}

static struct snd_soc_ops omap3evm_ops = {
	.hw_params = omap3evm_hw_params,
};

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link omap3evm_dai = {
	.name 		= "TWL4030",
	.stream_name 	= "TWL4030",
	.cpu_dai 	= &omap_mcbsp_dai[0],
	.codec_dai 	= &twl4030_dai[TWL4030_DAI_HIFI],
	.ops 		= &omap3evm_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_omap3evm = {
	.name = "omap3evm",
	.platform = &omap_soc_platform,
	.dai_link = &omap3evm_dai,
	.num_links = 1,
};

/* Audio subsystem */
static struct snd_soc_device omap3evm_snd_devdata = {
	.card = &snd_soc_omap3evm,
	.codec_dev = &soc_codec_dev_twl4030,
};

static struct platform_device *omap3evm_snd_device;

static int __init omap3evm_soc_init(void)
{
	int ret;

	if (!machine_is_omap3evm()) {
		pr_err("Not OMAP3 EVM!\n");
		return -ENODEV;
	}
	pr_info("OMAP3 EVM SoC init\n");

	omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
	if (!omap3evm_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(omap3evm_snd_device, &omap3evm_snd_devdata);
	omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
	*(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1;

	ret = platform_device_add(omap3evm_snd_device);
	if (ret)
		goto err1;

	return 0;

err1:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(omap3evm_snd_device);

	return ret;
}

static void __exit omap3evm_soc_exit(void)
{
	platform_device_unregister(omap3evm_snd_device);
}

module_init(omap3evm_soc_init);
module_exit(omap3evm_soc_exit);

MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
MODULE_LICENSE("GPLv2");
Commit	Line	Data
14610ce7 AA	1	/*
	2	* omap3evm.c -- ALSA SoC support for OMAP3 EVM
	3	*
	4	* Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
	5	*
	6	* Based on sound/soc/omap/beagle.c by Steve Sakoman
	7	*
	8	* Copyright (C) 2008 Texas Instruments, Incorporated
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation version 2.
	13	*
	14	* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
	15	* whether express or implied; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*/
	19
	20	#include <linux/clk.h>
	21	#include <linux/platform_device.h>
	22	#include <sound/core.h>
	23	#include <sound/pcm.h>
	24	#include <sound/soc.h>
	25	#include <sound/soc-dapm.h>
	26
	27	#include <asm/mach-types.h>
	28	#include <mach/hardware.h>
	29	#include <mach/gpio.h>
	30	#include <mach/mcbsp.h>
	31
	32	#include "omap-mcbsp.h"
	33	#include "omap-pcm.h"
	34	#include "../codecs/twl4030.h"
	35
	36	static int omap3evm_hw_params(struct snd_pcm_substream *substream,
	37	struct snd_pcm_hw_params *params)
	38	{
	39	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	40	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	41	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	42	int ret;
	43
	44	/* Set codec DAI configuration */
	45	ret = snd_soc_dai_set_fmt(codec_dai,
	46	SND_SOC_DAIFMT_I2S \|
	47	SND_SOC_DAIFMT_NB_NF \|
	48	SND_SOC_DAIFMT_CBM_CFM);
	49	if (ret < 0) {
	50	printk(KERN_ERR "Can't set codec DAI configuration\n");
	51	return ret;
	52	}
	53
	54	/* Set cpu DAI configuration */
	55	ret = snd_soc_dai_set_fmt(cpu_dai,
	56	SND_SOC_DAIFMT_I2S \|
	57	SND_SOC_DAIFMT_NB_NF \|
	58	SND_SOC_DAIFMT_CBM_CFM);
	59	if (ret < 0) {
	60	printk(KERN_ERR "Can't set cpu DAI configuration\n");
	61	return ret;
	62	}
	63
	64	/* Set the codec system clock for DAC and ADC */
65	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
66	SND_SOC_CLOCK_IN);
67	if (ret < 0) {
68	printk(KERN_ERR "Can't set codec system clock\n");
69	return ret;
70	}
71
72	return 0;
73	}
74
75	static struct snd_soc_ops omap3evm_ops = {
76	.hw_params = omap3evm_hw_params,
77	};
78
79	/* Digital audio interface glue - connects codec <--> CPU */
80	static struct snd_soc_dai_link omap3evm_dai = {
81	.name = "TWL4030",
82	.stream_name = "TWL4030",
83	.cpu_dai = &omap_mcbsp_dai[0],
84	.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
85	.ops = &omap3evm_ops,
86	};
87
88	/* Audio machine driver */
89	static struct snd_soc_card snd_soc_omap3evm = {
90	.name = "omap3evm",
91	.platform = &omap_soc_platform,
92	.dai_link = &omap3evm_dai,
93	.num_links = 1,
94	};
95
96	/* Audio subsystem */
97	static struct snd_soc_device omap3evm_snd_devdata = {
98	.card = &snd_soc_omap3evm,
99	.codec_dev = &soc_codec_dev_twl4030,
100	};
101
102	static struct platform_device *omap3evm_snd_device;
103
104	static int __init omap3evm_soc_init(void)
105	{
106	int ret;
107
108	if (!machine_is_omap3evm()) {
109	pr_err("Not OMAP3 EVM!\n");
110	return -ENODEV;
111	}
112	pr_info("OMAP3 EVM SoC init\n");
113
114	omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
115	if (!omap3evm_snd_device) {
116	printk(KERN_ERR "Platform device allocation failed\n");
117	return -ENOMEM;
118	}
119
120	platform_set_drvdata(omap3evm_snd_device, &omap3evm_snd_devdata);
121	omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
122	(unsigned int )omap3evm_dai.cpu_dai->private_data = 1;
123
124	ret = platform_device_add(omap3evm_snd_device);
125	if (ret)
126	goto err1;
127
128	return 0;
129
130	err1:
131	printk(KERN_ERR "Unable to add platform device\n");
132	platform_device_put(omap3evm_snd_device);
133
134	return ret;
135	}
136
137	static void __exit omap3evm_soc_exit(void)
138	{
139	platform_device_unregister(omap3evm_snd_device);
140	}
141
142	module_init(omap3evm_soc_init);
143	module_exit(omap3evm_soc_exit);
144
145	MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
146	MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
147	MODULE_LICENSE("GPLv2");