[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 <linux/mfd/twl6040.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>

#include <asm/mach-types.h>
#include <plat/hardware.h>
#include <plat/mux.h>

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

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;

	clk_id = twl6040_get_clk_id(rtd->codec);
	if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
		freq = 38400000;
	else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
		freq = 32768;
	else
		return -EINVAL;

	/* 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,
};

/* Headset jack */
static struct snd_soc_jack hs_jack;

/*Headset jack detection DAPM pins */
static struct snd_soc_jack_pin hs_jack_pins[] = {
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
	{
		.pin = "Headset Stereophone",
		.mask = SND_JACK_HEADPHONE,
	},
};

/* 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("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, "FM Stereo In"},
	{"AFMR", NULL, "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, hs_trim;

	/* 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");

	/*
	 * Configure McPDM offset cancellation based on the HSOTRIM value from
	 * twl6040.
	 */
	hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM);
	omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
					TWL6040_HSF_TRIM_RIGHT(hs_trim));

	/* Headset jack detection */
	ret = snd_soc_jack_new(codec, "Headset Jack",
				SND_JACK_HEADSET, &hs_jack);
	if (ret)
		return ret;

	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
				hs_jack_pins);

	if (machine_is_omap_4430sdp())
		twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
	else
		snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);

	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",
	.codec_dai_name = "twl6040-legacy",
	.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;

	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>
fb34d3d5 MLC	24	#include <linux/mfd/twl6040.h>
fb34d3d5 MLC	25
5e64d6aa MLC	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
96dc227c	29	#include <sound/jack.h>
5e64d6aa MLC	30
	31	#include <asm/mach-types.h>
	32	#include <plat/hardware.h>
	33	#include <plat/mux.h>
	34
f5f9d7bf	35	#include "omap-mcpdm.h"
5e64d6aa MLC	36	#include "omap-pcm.h"
	37	#include "../codecs/twl6040.h"
	38
5e64d6aa MLC	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
af958c72 PU	47	clk_id = twl6040_get_clk_id(rtd->codec);
af958c72 PU	48	if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
5e64d6aa	49	freq = 38400000;
af958c72	50	else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
5e64d6aa	51	freq = 32768;
af958c72 PU	52	else
af958c72 PU	53	return -EINVAL;
5e64d6aa MLC	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
96dc227c JEC	69	/* Headset jack */
	70	static struct snd_soc_jack hs_jack;
	71
	72	/Headset jack detection DAPM pins /
	73	static struct snd_soc_jack_pin hs_jack_pins[] = {
	74	{
	75	.pin = "Headset Mic",
	76	.mask = SND_JACK_MICROPHONE,
	77	},
	78	{
	79	.pin = "Headset Stereophone",
	80	.mask = SND_JACK_HEADPHONE,
	81	},
	82	};
	83
5e64d6aa MLC	84	/* SDP4430 machine DAPM */
	85	static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
	86	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	87	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	88	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	89	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
7254e2bd	90	SND_SOC_DAPM_SPK("Earphone Spk", NULL),
5382ffbb	91	SND_SOC_DAPM_INPUT("FM Stereo In"),
5e64d6aa MLC	92	};
	93
	94	static const struct snd_soc_dapm_route audio_map[] = {
	95	/* External Mics: MAINMIC, SUBMIC with bias*/
	96	{"MAINMIC", NULL, "Main Mic Bias"},
	97	{"SUBMIC", NULL, "Main Mic Bias"},
	98	{"Main Mic Bias", NULL, "Ext Mic"},
	99
	100	/* External Speakers: HFL, HFR */
	101	{"Ext Spk", NULL, "HFL"},
	102	{"Ext Spk", NULL, "HFR"},
	103
	104	/* Headset Mic: HSMIC with bias */
	105	{"HSMIC", NULL, "Headset Mic Bias"},
	106	{"Headset Mic Bias", NULL, "Headset Mic"},
	107
	108	/* Headset Stereophone (Headphone): HSOL, HSOR */
	109	{"Headset Stereophone", NULL, "HSOL"},
	110	{"Headset Stereophone", NULL, "HSOR"},
7254e2bd JEC	111
	112	/* Earphone speaker */
	113	{"Earphone Spk", NULL, "EP"},
23ac3b61 JEC	114
23ac3b61 JEC	115	/* Aux/FM Stereo In: AFML, AFMR */
5382ffbb UP	116	{"AFML", NULL, "FM Stereo In"},
5382ffbb UP	117	{"AFMR", NULL, "FM Stereo In"},
5e64d6aa MLC	118	};
5e64d6aa MLC	119
f0fba2ad	120	static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
5e64d6aa	121	{
f0fba2ad	122	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	123	struct snd_soc_dapm_context *dapm = &codec->dapm;
7bf3d92c	124	int ret, hs_trim;
5e64d6aa	125
5e64d6aa	126	/* Add SDP4430 specific widgets */
ce6120cc	127	ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
5e64d6aa MLC	128	ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
	129	if (ret)
	130	return ret;
	131
	132	/* Set up SDP4430 specific audio path audio_map */
ce6120cc	133	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
5e64d6aa MLC	134
5e64d6aa MLC	135	/* SDP4430 connected pins */
ce6120cc LG	136	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
ce6120cc LG	137	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
23ac3b61 JEC	138	snd_soc_dapm_enable_pin(dapm, "AFML");
23ac3b61 JEC	139	snd_soc_dapm_enable_pin(dapm, "AFMR");
ce6120cc LG	140	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
ce6120cc LG	141	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
5e64d6aa	142
7bf3d92c PU	143	/*
	144	* Configure McPDM offset cancellation based on the HSOTRIM value from
	145	* twl6040.
	146	*/
	147	hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM);
	148	omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
	149	TWL6040_HSF_TRIM_RIGHT(hs_trim));
	150
96dc227c JEC	151	/* Headset jack detection */
	152	ret = snd_soc_jack_new(codec, "Headset Jack",
	153	SND_JACK_HEADSET, &hs_jack);
	154	if (ret)
	155	return ret;
	156
	157	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
	158	hs_jack_pins);
	159
	160	if (machine_is_omap_4430sdp())
	161	twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
	162	else
	163	snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);
5e64d6aa MLC	164
	165	return ret;
	166	}
	167
	168	/* Digital audio interface glue - connects codec <--> CPU */
	169	static struct snd_soc_dai_link sdp4430_dai = {
	170	.name = "TWL6040",
	171	.stream_name = "TWL6040",
3a98cd6b	172	.cpu_dai_name = "omap-mcpdm",
d13f1fe0	173	.codec_dai_name = "twl6040-legacy",
f0fba2ad LG	174	.platform_name = "omap-pcm-audio",
f0fba2ad LG	175	.codec_name = "twl6040-codec",
5e64d6aa	176	.init = sdp4430_twl6040_init,
d8b55d2c	177	.ops = &sdp4430_ops,
5e64d6aa MLC	178	};
	179
	180	/* Audio machine driver */
	181	static struct snd_soc_card snd_soc_sdp4430 = {
	182	.name = "SDP4430",
5e64d6aa MLC	183	.dai_link = &sdp4430_dai,
	184	.num_links = 1,
	185	};
	186
5e64d6aa MLC	187	static struct platform_device *sdp4430_snd_device;
	188
	189	static int __init sdp4430_soc_init(void)
	190	{
	191	int ret;
	192
ec588ae6	193	if (!machine_is_omap_4430sdp())
5e64d6aa	194	return -ENODEV;
5e64d6aa MLC	195	printk(KERN_INFO "SDP4430 SoC init\n");
	196
	197	sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
	198	if (!sdp4430_snd_device) {
	199	printk(KERN_ERR "Platform device allocation failed\n");
	200	return -ENOMEM;
	201	}
	202
f0fba2ad	203	platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
5e64d6aa MLC	204
	205	ret = platform_device_add(sdp4430_snd_device);
	206	if (ret)
	207	goto err;
	208
5e64d6aa MLC	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