[deliverable/linux.git] / sound / soc / omap / am3517evm.c

/*
 * am3517evm.c  -- ALSA SoC support for OMAP3517 / AM3517 EVM
 *
 * Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
 *
 * Based on sound/soc/omap/beagle.c by Steve Sakoman
 *
 * Copyright (C) 2009 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 <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <plat/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"

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

#define CODEC_CLOCK 	12000000

static int am3517evm_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;

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

	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0,
				SND_SOC_CLOCK_IN);
	if (ret < 0) {
		printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n");
		return ret;
	}

	snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0,
				SND_SOC_CLOCK_IN);
	if (ret < 0) {
		printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n");
		return ret;
	}

	return 0;
}

static struct snd_soc_ops am3517evm_ops = {
	.hw_params = am3517evm_hw_params,
};

/* am3517evm machine dapm widgets */
static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Line Out", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
	SND_SOC_DAPM_MIC("Mic In", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	/* Line Out connected to LLOUT, RLOUT */
	{"Line Out", NULL, "LOUT"},
	{"Line Out", NULL, "ROUT"},

	{"LLINEIN", NULL, "Line In"},
	{"RLINEIN", NULL, "Line In"},

	{"MICIN", NULL, "Mic In"},
};

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link am3517evm_dai = {
	.name = "TLV320AIC23",
	.stream_name = "AIC23",
	.cpu_dai_name ="omap-mcbsp-dai.0",
	.codec_dai_name = "tlv320aic23-hifi",
	.platform_name = "omap-pcm-audio",
	.codec_name = "tlv320aic23-codec.2-001a",
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
		   SND_SOC_DAIFMT_CBM_CFM,
	.ops = &am3517evm_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_am3517evm = {
	.name = "am3517evm",
	.dai_link = &am3517evm_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 struct platform_device *am3517evm_snd_device;

static int __init am3517evm_soc_init(void)
{
	int ret;

	if (!machine_is_omap3517evm())
		return -ENODEV;
	pr_info("OMAP3517 / AM3517 EVM SoC init\n");

	am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
	if (!am3517evm_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);

	ret = platform_device_add(am3517evm_snd_device);
	if (ret)
		goto err1;

	return 0;

err1:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(am3517evm_snd_device);

	return ret;
}

static void __exit am3517evm_soc_exit(void)
{
	platform_device_unregister(am3517evm_snd_device);
}

module_init(am3517evm_soc_init);
module_exit(am3517evm_soc_exit);

MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
89e9abe7 AA	1	/*
	2	* am3517evm.c -- ALSA SoC support for OMAP3517 / AM3517 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) 2009 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>
89e9abe7 AA	25
	26	#include <asm/mach-types.h>
	27	#include <mach/hardware.h>
	28	#include <mach/gpio.h>
	29	#include <plat/mcbsp.h>
	30
	31	#include "omap-mcbsp.h"
	32	#include "omap-pcm.h"
	33
	34	#include "../codecs/tlv320aic23.h"
	35
	36	#define CODEC_CLOCK 12000000
	37
	38	static int am3517evm_hw_params(struct snd_pcm_substream *substream,
	39	struct snd_pcm_hw_params *params)
	40	{
	41	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	42	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	43	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
89e9abe7 AA	44	int ret;
89e9abe7 AA	45
89e9abe7 AA	46	/* Set the codec system clock for DAC and ADC */
	47	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	48	CODEC_CLOCK, SND_SOC_CLOCK_IN);
	49	if (ret < 0) {
	50	printk(KERN_ERR "can't set codec system clock\n");
	51	return ret;
	52	}
	53
	54	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0,
	55	SND_SOC_CLOCK_IN);
	56	if (ret < 0) {
	57	printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n");
	58	return ret;
	59	}
	60
	61	snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0,
	62	SND_SOC_CLOCK_IN);
	63	if (ret < 0) {
	64	printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n");
	65	return ret;
	66	}
	67
	68	return 0;
	69	}
	70
	71	static struct snd_soc_ops am3517evm_ops = {
	72	.hw_params = am3517evm_hw_params,
	73	};
	74
	75	/* am3517evm machine dapm widgets */
	76	static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
	77	SND_SOC_DAPM_HP("Line Out", NULL),
	78	SND_SOC_DAPM_LINE("Line In", NULL),
	79	SND_SOC_DAPM_MIC("Mic In", NULL),
	80	};
	81
	82	static const struct snd_soc_dapm_route audio_map[] = {
	83	/* Line Out connected to LLOUT, RLOUT */
	84	{"Line Out", NULL, "LOUT"},
	85	{"Line Out", NULL, "ROUT"},
	86
	87	{"LLINEIN", NULL, "Line In"},
	88	{"RLINEIN", NULL, "Line In"},
	89
	90	{"MICIN", NULL, "Mic In"},
	91	};
	92
89e9abe7 AA	93	/* Digital audio interface glue - connects codec <--> CPU */
	94	static struct snd_soc_dai_link am3517evm_dai = {
	95	.name = "TLV320AIC23",
	96	.stream_name = "AIC23",
f0fba2ad LG	97	.cpu_dai_name ="omap-mcbsp-dai.0",
	98	.codec_dai_name = "tlv320aic23-hifi",
	99	.platform_name = "omap-pcm-audio",
ffd6eae2	100	.codec_name = "tlv320aic23-codec.2-001a",
cf9feff2 JN	101	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_NB_NF \|
cf9feff2 JN	102	SND_SOC_DAIFMT_CBM_CFM,
89e9abe7 AA	103	.ops = &am3517evm_ops,
	104	};
	105
	106	/* Audio machine driver */
	107	static struct snd_soc_card snd_soc_am3517evm = {
	108	.name = "am3517evm",
89e9abe7 AA	109	.dai_link = &am3517evm_dai,
89e9abe7 AA	110	.num_links = 1,
d2266025 PU	111
	112	.dapm_widgets = tlv320aic23_dapm_widgets,
	113	.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
	114	.dapm_routes = audio_map,
	115	.num_dapm_routes = ARRAY_SIZE(audio_map),
89e9abe7 AA	116	};
89e9abe7 AA	117
89e9abe7 AA	118	static struct platform_device *am3517evm_snd_device;
	119
	120	static int __init am3517evm_soc_init(void)
	121	{
	122	int ret;
	123
ec588ae6	124	if (!machine_is_omap3517evm())
89e9abe7	125	return -ENODEV;
89e9abe7 AA	126	pr_info("OMAP3517 / AM3517 EVM SoC init\n");
	127
	128	am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
	129	if (!am3517evm_snd_device) {
	130	printk(KERN_ERR "Platform device allocation failed\n");
	131	return -ENOMEM;
	132	}
	133
f0fba2ad	134	platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);
89e9abe7 AA	135
	136	ret = platform_device_add(am3517evm_snd_device);
	137	if (ret)
	138	goto err1;
	139
	140	return 0;
	141
	142	err1:
	143	printk(KERN_ERR "Unable to add platform device\n");
	144	platform_device_put(am3517evm_snd_device);
	145
	146	return ret;
	147	}
	148
	149	static void __exit am3517evm_soc_exit(void)
	150	{
	151	platform_device_unregister(am3517evm_snd_device);
	152	}
	153
	154	module_init(am3517evm_soc_init);
	155	module_exit(am3517evm_soc_exit);
	156
	157	MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
	158	MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
	159	MODULE_LICENSE("GPL v2");