[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 <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),
	SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
};

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"},

	/* Aux/FM Stereo In: AFML, AFMR */
	{"AFML", NULL, "Aux/FM Stereo In"},
	{"AFMR", NULL, "Aux/FM Stereo In"},
};

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, "AFML");
	snd_soc_dapm_enable_pin(dapm, "AFMR");
	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");

	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>
5e64d6aa MLC	27
	28	#include <asm/mach-types.h>
	29	#include <plat/hardware.h>
	30	#include <plat/mux.h>
	31
	32	#include "mcpdm.h"
5e64d6aa MLC	33	#include "omap-pcm.h"
	34	#include "../codecs/twl6040.h"
	35
	36	static int twl6040_power_mode;
	37
	38	static int sdp4430_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	42	struct snd_soc_dai *codec_dai = rtd->codec_dai;
5e64d6aa MLC	43	int clk_id, freq;
	44	int ret;
	45
	46	if (twl6040_power_mode) {
	47	clk_id = TWL6040_SYSCLK_SEL_HPPLL;
	48	freq = 38400000;
	49	} else {
	50	clk_id = TWL6040_SYSCLK_SEL_LPPLL;
	51	freq = 32768;
	52	}
	53
	54	/* set the codec mclk */
	55	ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
	56	SND_SOC_CLOCK_IN);
	57	if (ret) {
	58	printk(KERN_ERR "can't set codec system clock\n");
	59	return ret;
	60	}
f0fba2ad	61	return ret;
5e64d6aa MLC	62	}
	63
	64	static struct snd_soc_ops sdp4430_ops = {
	65	.hw_params = sdp4430_hw_params,
	66	};
	67
	68	static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
	69	struct snd_ctl_elem_value *ucontrol)
	70	{
	71	ucontrol->value.integer.value[0] = twl6040_power_mode;
	72	return 0;
	73	}
	74
	75	static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
	76	struct snd_ctl_elem_value *ucontrol)
	77	{
	78	if (twl6040_power_mode == ucontrol->value.integer.value[0])
	79	return 0;
	80
	81	twl6040_power_mode = ucontrol->value.integer.value[0];
	82
	83	return 1;
	84	}
	85
	86	static const char *power_texts[] = {"Low-Power", "High-Performance"};
	87
	88	static const struct soc_enum sdp4430_enum[] = {
	89	SOC_ENUM_SINGLE_EXT(2, power_texts),
	90	};
	91
	92	static const struct snd_kcontrol_new sdp4430_controls[] = {
	93	SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
	94	sdp4430_get_power_mode, sdp4430_set_power_mode),
	95	};
	96
	97	/* SDP4430 machine DAPM */
	98	static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
	99	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	100	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	101	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	102	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
7254e2bd	103	SND_SOC_DAPM_SPK("Earphone Spk", NULL),
23ac3b61	104	SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
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"},
23ac3b61 JEC	127
	128	/* Aux/FM Stereo In: AFML, AFMR */
	129	{"AFML", NULL, "Aux/FM Stereo In"},
	130	{"AFMR", NULL, "Aux/FM Stereo In"},
5e64d6aa MLC	131	};
5e64d6aa MLC	132
f0fba2ad	133	static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
5e64d6aa	134	{
f0fba2ad	135	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	136	struct snd_soc_dapm_context *dapm = &codec->dapm;
5e64d6aa MLC	137	int ret;
	138
	139	/* Add SDP4430 specific controls */
	140	ret = snd_soc_add_controls(codec, sdp4430_controls,
	141	ARRAY_SIZE(sdp4430_controls));
	142	if (ret)
	143	return ret;
	144
	145	/* Add SDP4430 specific widgets */
ce6120cc	146	ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
5e64d6aa MLC	147	ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
	148	if (ret)
	149	return ret;
	150
	151	/* Set up SDP4430 specific audio path audio_map */
ce6120cc	152	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
5e64d6aa MLC	153
5e64d6aa MLC	154	/* SDP4430 connected pins */
ce6120cc LG	155	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
ce6120cc LG	156	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
23ac3b61 JEC	157	snd_soc_dapm_enable_pin(dapm, "AFML");
23ac3b61 JEC	158	snd_soc_dapm_enable_pin(dapm, "AFMR");
ce6120cc LG	159	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
ce6120cc LG	160	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
5e64d6aa	161
ce6120cc	162	ret = snd_soc_dapm_sync(dapm);
5e64d6aa MLC	163
	164	return ret;
	165	}
	166
	167	/* Digital audio interface glue - connects codec <--> CPU */
	168	static struct snd_soc_dai_link sdp4430_dai = {
	169	.name = "TWL6040",
	170	.stream_name = "TWL6040",
f0fba2ad LG	171	.cpu_dai_name ="omap-mcpdm-dai",
	172	.codec_dai_name = "twl6040-hifi",
	173	.platform_name = "omap-pcm-audio",
	174	.codec_name = "twl6040-codec",
5e64d6aa	175	.init = sdp4430_twl6040_init,
d8b55d2c	176	.ops = &sdp4430_ops,
5e64d6aa MLC	177	};
	178
	179	/* Audio machine driver */
	180	static struct snd_soc_card snd_soc_sdp4430 = {
	181	.name = "SDP4430",
5e64d6aa MLC	182	.dai_link = &sdp4430_dai,
	183	.num_links = 1,
	184	};
	185
5e64d6aa MLC	186	static struct platform_device *sdp4430_snd_device;
	187
	188	static int __init sdp4430_soc_init(void)
	189	{
	190	int ret;
	191
ec588ae6	192	if (!machine_is_omap_4430sdp())
5e64d6aa	193	return -ENODEV;
5e64d6aa MLC	194	printk(KERN_INFO "SDP4430 SoC init\n");
	195
	196	sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
	197	if (!sdp4430_snd_device) {
	198	printk(KERN_ERR "Platform device allocation failed\n");
	199	return -ENOMEM;
	200	}
	201
f0fba2ad	202	platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
5e64d6aa MLC	203
	204	ret = platform_device_add(sdp4430_snd_device);
	205	if (ret)
	206	goto err;
	207
	208	/* Codec starts in HP mode */
	209	twl6040_power_mode = 1;
	210
	211	return 0;
	212
	213	err:
	214	printk(KERN_ERR "Unable to add platform device\n");
	215	platform_device_put(sdp4430_snd_device);
	216	return ret;
	217	}
	218	module_init(sdp4430_soc_init);
	219
	220	static void __exit sdp4430_soc_exit(void)
	221	{
	222	platform_device_unregister(sdp4430_snd_device);
	223	}
	224	module_exit(sdp4430_soc_exit);
	225
	226	MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
	227	MODULE_DESCRIPTION("ALSA SoC SDP4430");
	228	MODULE_LICENSE("GPL");
	229