[deliverable/linux.git] / sound / soc / omap / sdp4430.c

/*
 * sdp4430.c  --  SoC audio for TI OMAP4430 SDP
 *
 * Author: Misael Lopez Cruz <x0052729@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#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 <plat/hardware.h>
#include <plat/mux.h>

#include "mcpdm.h"
#include "omap-pcm.h"
#include "../codecs/twl6040.h"

static int twl6040_power_mode;

static int sdp4430_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;
	int clk_id, freq;
	int ret;

	if (twl6040_power_mode) {
		clk_id = TWL6040_SYSCLK_SEL_HPPLL;
		freq = 38400000;
	} else {
		clk_id = TWL6040_SYSCLK_SEL_LPPLL;
		freq = 32768;
	}

	/* set the codec mclk */
	ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
				SND_SOC_CLOCK_IN);
	if (ret) {
		printk(KERN_ERR "can't set codec system clock\n");
		return ret;
	}
	return ret;
}

static struct snd_soc_ops sdp4430_ops = {
	.hw_params = sdp4430_hw_params,
};

static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = twl6040_power_mode;
	return 0;
}

static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	if (twl6040_power_mode == ucontrol->value.integer.value[0])
		return 0;

	twl6040_power_mode = ucontrol->value.integer.value[0];

	return 1;
}

static const char *power_texts[] = {"Low-Power", "High-Performance"};

static const struct soc_enum sdp4430_enum[] = {
	SOC_ENUM_SINGLE_EXT(2, power_texts),
};

static const struct snd_kcontrol_new sdp4430_controls[] = {
	SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
		sdp4430_get_power_mode, sdp4430_set_power_mode),
};

/* SDP4430 machine DAPM */
static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
	SND_SOC_DAPM_SPK("Earphone Spk", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	/* External Mics: MAINMIC, SUBMIC with bias*/
	{"MAINMIC", NULL, "Main Mic Bias"},
	{"SUBMIC", NULL, "Main Mic Bias"},
	{"Main Mic Bias", NULL, "Ext Mic"},

	/* External Speakers: HFL, HFR */
	{"Ext Spk", NULL, "HFL"},
	{"Ext Spk", NULL, "HFR"},

	/* Headset Mic: HSMIC with bias */
	{"HSMIC", NULL, "Headset Mic Bias"},
	{"Headset Mic Bias", NULL, "Headset Mic"},

	/* Headset Stereophone (Headphone): HSOL, HSOR */
	{"Headset Stereophone", NULL, "HSOL"},
	{"Headset Stereophone", NULL, "HSOR"},

	/* Earphone speaker */
	{"Earphone Spk", NULL, "EP"},
};

static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int ret;

	/* Add SDP4430 specific controls */
	ret = snd_soc_add_controls(codec, sdp4430_controls,
				ARRAY_SIZE(sdp4430_controls));
	if (ret)
		return ret;

	/* Add SDP4430 specific widgets */
	ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
				ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
	if (ret)
		return ret;

	/* Set up SDP4430 specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	/* SDP4430 connected pins */
	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");

	/* TWL6040 not connected pins */
	snd_soc_dapm_nc_pin(dapm, "AFML");
	snd_soc_dapm_nc_pin(dapm, "AFMR");

	ret = snd_soc_dapm_sync(dapm);

	return ret;
}

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp4430_dai = {
	.name = "TWL6040",
	.stream_name = "TWL6040",
	.cpu_dai_name ="omap-mcpdm-dai",
	.codec_dai_name = "twl6040-hifi",
	.platform_name = "omap-pcm-audio",
	.codec_name = "twl6040-codec",
	.init = sdp4430_twl6040_init,
	.ops = &sdp4430_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_sdp4430 = {
	.name = "SDP4430",
	.dai_link = &sdp4430_dai,
	.num_links = 1,
};

static struct platform_device *sdp4430_snd_device;

static int __init sdp4430_soc_init(void)
{
	int ret;

	if (!machine_is_omap_4430sdp())
		return -ENODEV;
	printk(KERN_INFO "SDP4430 SoC init\n");

	sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
	if (!sdp4430_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);

	ret = platform_device_add(sdp4430_snd_device);
	if (ret)
		goto err;

	/* Codec starts in HP mode */
	twl6040_power_mode = 1;

	return 0;

err:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(sdp4430_snd_device);
	return ret;
}
module_init(sdp4430_soc_init);

static void __exit sdp4430_soc_exit(void)
{
	platform_device_unregister(sdp4430_snd_device);
}
module_exit(sdp4430_soc_exit);

MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
MODULE_DESCRIPTION("ALSA SoC SDP4430");
MODULE_LICENSE("GPL");
Commit	Line	Data
5e64d6aa MLC	1	/*
	2	* sdp4430.c -- SoC audio for TI OMAP4430 SDP
	3	*
	4	* Author: Misael Lopez Cruz <x0052729@ti.com>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
	22	#include <linux/clk.h>
	23	#include <linux/platform_device.h>
	24	#include <sound/core.h>
	25	#include <sound/pcm.h>
	26	#include <sound/soc.h>
	27	#include <sound/soc-dapm.h>
	28
	29	#include <asm/mach-types.h>
	30	#include <plat/hardware.h>
	31	#include <plat/mux.h>
	32
	33	#include "mcpdm.h"
5e64d6aa MLC	34	#include "omap-pcm.h"
	35	#include "../codecs/twl6040.h"
	36
	37	static int twl6040_power_mode;
	38
	39	static int sdp4430_hw_params(struct snd_pcm_substream *substream,
	40	struct snd_pcm_hw_params *params)
	41	{
	42	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	43	struct snd_soc_dai *codec_dai = rtd->codec_dai;
5e64d6aa MLC	44	int clk_id, freq;
	45	int ret;
	46
	47	if (twl6040_power_mode) {
	48	clk_id = TWL6040_SYSCLK_SEL_HPPLL;
	49	freq = 38400000;
	50	} else {
	51	clk_id = TWL6040_SYSCLK_SEL_LPPLL;
	52	freq = 32768;
	53	}
	54
	55	/* set the codec mclk */
	56	ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
	57	SND_SOC_CLOCK_IN);
	58	if (ret) {
	59	printk(KERN_ERR "can't set codec system clock\n");
	60	return ret;
	61	}
f0fba2ad	62	return ret;
5e64d6aa MLC	63	}
	64
	65	static struct snd_soc_ops sdp4430_ops = {
	66	.hw_params = sdp4430_hw_params,
	67	};
	68
	69	static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
	70	struct snd_ctl_elem_value *ucontrol)
	71	{
	72	ucontrol->value.integer.value[0] = twl6040_power_mode;
	73	return 0;
	74	}
	75
	76	static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
	77	struct snd_ctl_elem_value *ucontrol)
	78	{
	79	if (twl6040_power_mode == ucontrol->value.integer.value[0])
	80	return 0;
	81
	82	twl6040_power_mode = ucontrol->value.integer.value[0];
	83
	84	return 1;
	85	}
	86
	87	static const char *power_texts[] = {"Low-Power", "High-Performance"};
	88
	89	static const struct soc_enum sdp4430_enum[] = {
	90	SOC_ENUM_SINGLE_EXT(2, power_texts),
	91	};
	92
	93	static const struct snd_kcontrol_new sdp4430_controls[] = {
	94	SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
	95	sdp4430_get_power_mode, sdp4430_set_power_mode),
	96	};
	97
	98	/* SDP4430 machine DAPM */
	99	static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
	100	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	101	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	102	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	103	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
7254e2bd	104	SND_SOC_DAPM_SPK("Earphone Spk", NULL),
5e64d6aa MLC	105	};
	106
	107	static const struct snd_soc_dapm_route audio_map[] = {
	108	/* External Mics: MAINMIC, SUBMIC with bias*/
	109	{"MAINMIC", NULL, "Main Mic Bias"},
	110	{"SUBMIC", NULL, "Main Mic Bias"},
	111	{"Main Mic Bias", NULL, "Ext Mic"},
	112
	113	/* External Speakers: HFL, HFR */
	114	{"Ext Spk", NULL, "HFL"},
	115	{"Ext Spk", NULL, "HFR"},
	116
	117	/* Headset Mic: HSMIC with bias */
	118	{"HSMIC", NULL, "Headset Mic Bias"},
	119	{"Headset Mic Bias", NULL, "Headset Mic"},
	120
	121	/* Headset Stereophone (Headphone): HSOL, HSOR */
	122	{"Headset Stereophone", NULL, "HSOL"},
	123	{"Headset Stereophone", NULL, "HSOR"},
7254e2bd JEC	124
	125	/* Earphone speaker */
	126	{"Earphone Spk", NULL, "EP"},
5e64d6aa MLC	127	};
5e64d6aa MLC	128
f0fba2ad	129	static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
5e64d6aa	130	{
f0fba2ad	131	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	132	struct snd_soc_dapm_context *dapm = &codec->dapm;
5e64d6aa MLC	133	int ret;
	134
	135	/* Add SDP4430 specific controls */
	136	ret = snd_soc_add_controls(codec, sdp4430_controls,
	137	ARRAY_SIZE(sdp4430_controls));
	138	if (ret)
	139	return ret;
	140
	141	/* Add SDP4430 specific widgets */
ce6120cc	142	ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
5e64d6aa MLC	143	ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
	144	if (ret)
	145	return ret;
	146
	147	/* Set up SDP4430 specific audio path audio_map */
ce6120cc	148	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
5e64d6aa MLC	149
5e64d6aa MLC	150	/* SDP4430 connected pins */
ce6120cc LG	151	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
	152	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	153	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
	154	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
5e64d6aa MLC	155
5e64d6aa MLC	156	/* TWL6040 not connected pins */
ce6120cc LG	157	snd_soc_dapm_nc_pin(dapm, "AFML");
ce6120cc LG	158	snd_soc_dapm_nc_pin(dapm, "AFMR");
5e64d6aa	159
ce6120cc	160	ret = snd_soc_dapm_sync(dapm);
5e64d6aa MLC	161
	162	return ret;
	163	}
	164
	165	/* Digital audio interface glue - connects codec <--> CPU */
	166	static struct snd_soc_dai_link sdp4430_dai = {
	167	.name = "TWL6040",
	168	.stream_name = "TWL6040",
f0fba2ad LG	169	.cpu_dai_name ="omap-mcpdm-dai",
	170	.codec_dai_name = "twl6040-hifi",
	171	.platform_name = "omap-pcm-audio",
	172	.codec_name = "twl6040-codec",
5e64d6aa	173	.init = sdp4430_twl6040_init,
d8b55d2c	174	.ops = &sdp4430_ops,
5e64d6aa MLC	175	};
	176
	177	/* Audio machine driver */
	178	static struct snd_soc_card snd_soc_sdp4430 = {
	179	.name = "SDP4430",
5e64d6aa MLC	180	.dai_link = &sdp4430_dai,
	181	.num_links = 1,
	182	};
	183
5e64d6aa MLC	184	static struct platform_device *sdp4430_snd_device;
	185
	186	static int __init sdp4430_soc_init(void)
	187	{
	188	int ret;
	189
ec588ae6	190	if (!machine_is_omap_4430sdp())
5e64d6aa	191	return -ENODEV;
5e64d6aa MLC	192	printk(KERN_INFO "SDP4430 SoC init\n");
	193
	194	sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
	195	if (!sdp4430_snd_device) {
	196	printk(KERN_ERR "Platform device allocation failed\n");
	197	return -ENOMEM;
	198	}
	199
f0fba2ad	200	platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
5e64d6aa MLC	201
	202	ret = platform_device_add(sdp4430_snd_device);
	203	if (ret)
	204	goto err;
	205
	206	/* Codec starts in HP mode */
	207	twl6040_power_mode = 1;
	208
	209	return 0;
	210
	211	err:
	212	printk(KERN_ERR "Unable to add platform device\n");
	213	platform_device_put(sdp4430_snd_device);
	214	return ret;
	215	}
	216	module_init(sdp4430_soc_init);
	217
	218	static void __exit sdp4430_soc_exit(void)
	219	{
	220	platform_device_unregister(sdp4430_snd_device);
	221	}
	222	module_exit(sdp4430_soc_exit);
	223
	224	MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
	225	MODULE_DESCRIPTION("ALSA SoC SDP4430");
	226	MODULE_LICENSE("GPL");
	227