[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 codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai,
				  SND_SOC_DAIFMT_DSP_B |
				  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_DSP_B |
				  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,
			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"},
};

static int am3517evm_aic23_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	/* Add am3517-evm specific widgets */
	snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
				  ARRAY_SIZE(tlv320aic23_dapm_widgets));

	/* Set up davinci-evm specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	/* always connected */
	snd_soc_dapm_enable_pin(dapm, "Line Out");
	snd_soc_dapm_enable_pin(dapm, "Line In");
	snd_soc_dapm_enable_pin(dapm, "Mic In");

	snd_soc_dapm_sync(dapm);

	return 0;
}

/* 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",
	.init = am3517evm_aic23_init,
	.ops = &am3517evm_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_am3517evm = {
	.name = "am3517evm",
	.dai_link = &am3517evm_dai,
	.num_links = 1,
};

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;
	45
	46	/* Set codec DAI configuration */
	47	ret = snd_soc_dai_set_fmt(codec_dai,
	48	SND_SOC_DAIFMT_DSP_B \|
	49	SND_SOC_DAIFMT_NB_NF \|
	50	SND_SOC_DAIFMT_CBM_CFM);
	51	if (ret < 0) {
	52	printk(KERN_ERR "can't set codec DAI configuration\n");
	53	return ret;
	54	}
	55
	56	/* Set cpu DAI configuration */
	57	ret = snd_soc_dai_set_fmt(cpu_dai,
	58	SND_SOC_DAIFMT_DSP_B \|
	59	SND_SOC_DAIFMT_NB_NF \|
	60	SND_SOC_DAIFMT_CBM_CFM);
	61	if (ret < 0) {
	62	printk(KERN_ERR "can't set cpu DAI configuration\n");
	63	return ret;
	64	}
	65
	66	/* Set the codec system clock for DAC and ADC */
	67	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	68	CODEC_CLOCK, SND_SOC_CLOCK_IN);
	69	if (ret < 0) {
	70	printk(KERN_ERR "can't set codec system clock\n");
	71	return ret;
	72	}
	73
	74	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0,
	75	SND_SOC_CLOCK_IN);
	76	if (ret < 0) {
	77	printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n");
	78	return ret;
	79	}
	80
	81	snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0,
	82	SND_SOC_CLOCK_IN);
	83	if (ret < 0) {
	84	printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n");
	85	return ret;
	86	}
	87
	88	return 0;
	89	}
	90
	91	static struct snd_soc_ops am3517evm_ops = {
	92	.hw_params = am3517evm_hw_params,
	93	};
	94
	95	/* am3517evm machine dapm widgets */
	96	static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
	97	SND_SOC_DAPM_HP("Line Out", NULL),
	98	SND_SOC_DAPM_LINE("Line In", NULL),
	99	SND_SOC_DAPM_MIC("Mic In", NULL),
	100	};
	101
	102	static const struct snd_soc_dapm_route audio_map[] = {
	103	/* Line Out connected to LLOUT, RLOUT */
	104	{"Line Out", NULL, "LOUT"},
	105	{"Line Out", NULL, "ROUT"},
	106
	107	{"LLINEIN", NULL, "Line In"},
108	{"RLINEIN", NULL, "Line In"},
109
110	{"MICIN", NULL, "Mic In"},
111	};
112
f0fba2ad	113	static int am3517evm_aic23_init(struct snd_soc_pcm_runtime *rtd)
89e9abe7	114	{
f0fba2ad	115	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	116	struct snd_soc_dapm_context *dapm = &codec->dapm;
f0fba2ad	117
89e9abe7	118	/* Add am3517-evm specific widgets */
ce6120cc	119	snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
89e9abe7 AA	120	ARRAY_SIZE(tlv320aic23_dapm_widgets));
	121
	122	/* Set up davinci-evm specific audio path audio_map */
ce6120cc	123	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
89e9abe7 AA	124
89e9abe7 AA	125	/* always connected */
ce6120cc LG	126	snd_soc_dapm_enable_pin(dapm, "Line Out");
	127	snd_soc_dapm_enable_pin(dapm, "Line In");
	128	snd_soc_dapm_enable_pin(dapm, "Mic In");
89e9abe7	129
ce6120cc	130	snd_soc_dapm_sync(dapm);
89e9abe7 AA	131
	132	return 0;
	133	}
	134
	135	/* Digital audio interface glue - connects codec <--> CPU */
	136	static struct snd_soc_dai_link am3517evm_dai = {
	137	.name = "TLV320AIC23",
	138	.stream_name = "AIC23",
f0fba2ad LG	139	.cpu_dai_name ="omap-mcbsp-dai.0",
	140	.codec_dai_name = "tlv320aic23-hifi",
	141	.platform_name = "omap-pcm-audio",
ffd6eae2	142	.codec_name = "tlv320aic23-codec.2-001a",
89e9abe7 AA	143	.init = am3517evm_aic23_init,
	144	.ops = &am3517evm_ops,
	145	};
	146
	147	/* Audio machine driver */
	148	static struct snd_soc_card snd_soc_am3517evm = {
	149	.name = "am3517evm",
89e9abe7 AA	150	.dai_link = &am3517evm_dai,
	151	.num_links = 1,
	152	};
	153
89e9abe7 AA	154	static struct platform_device *am3517evm_snd_device;
	155
	156	static int __init am3517evm_soc_init(void)
	157	{
	158	int ret;
	159
ec588ae6	160	if (!machine_is_omap3517evm())
89e9abe7	161	return -ENODEV;
89e9abe7 AA	162	pr_info("OMAP3517 / AM3517 EVM SoC init\n");
	163
	164	am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
	165	if (!am3517evm_snd_device) {
	166	printk(KERN_ERR "Platform device allocation failed\n");
	167	return -ENOMEM;
	168	}
	169
f0fba2ad	170	platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);
89e9abe7 AA	171
	172	ret = platform_device_add(am3517evm_snd_device);
	173	if (ret)
	174	goto err1;
	175
	176	return 0;
	177
	178	err1:
	179	printk(KERN_ERR "Unable to add platform device\n");
	180	platform_device_put(am3517evm_snd_device);
	181
	182	return ret;
	183	}
	184
	185	static void __exit am3517evm_soc_exit(void)
	186	{
	187	platform_device_unregister(am3517evm_snd_device);
	188	}
	189
	190	module_init(am3517evm_soc_init);
	191	module_exit(am3517evm_soc_exit);
	192
	193	MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
	194	MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
	195	MODULE_LICENSE("GPL v2");