[deliverable/linux.git] / sound / soc / omap / sdp3430.c

/*
 * sdp3430.c  --  SoC audio for TI OMAP3430 SDP
 *
 * Author: Misael Lopez Cruz <x0052729@ti.com>
 *
 * Based on:
 * Author: Steve Sakoman <steve@sakoman.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 <sound/jack.h>

#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <mach/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/twl4030.h"

static int sdp3430_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->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	int ret;

	/* Set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai,
				  SND_SOC_DAIFMT_I2S |
				  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_I2S |
				  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, 26000000,
					    SND_SOC_CLOCK_IN);
	if (ret < 0) {
		printk(KERN_ERR "can't set codec system clock\n");
		return ret;
	}

	return 0;
}

static struct snd_soc_ops sdp3430_ops = {
	.hw_params = sdp3430_hw_params,
};

/* SDP3430 machine DAPM */
static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_HP("Headset Jack", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	/* External Mics: MAINMIC, SUBMIC with bias*/
	{"MAINMIC", NULL, "Mic Bias 1"},
	{"SUBMIC", NULL, "Mic Bias 2"},
	{"Mic Bias 1", NULL, "Ext Mic"},
	{"Mic Bias 2", NULL, "Ext Mic"},

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

	/* Headset: HSMIC (with bias), HSOL, HSOR */
	{"Headset Jack", NULL, "HSOL"},
	{"Headset Jack", NULL, "HSOR"},
	{"HSMIC", NULL, "Headset Mic Bias"},
	{"Headset Mic Bias", NULL, "Headset Jack"},
};

static int sdp3430_twl4030_init(struct snd_soc_codec *codec)
{
	int ret;

	/* Add SDP3430 specific widgets */
	ret = snd_soc_dapm_new_controls(codec, sdp3430_twl4030_dapm_widgets,
				ARRAY_SIZE(sdp3430_twl4030_dapm_widgets));
	if (ret)
		return ret;

	/* Set up SDP3430 specific audio path audio_map */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	/* SDP3430 connected pins */
	snd_soc_dapm_enable_pin(codec, "Ext Mic");
	snd_soc_dapm_enable_pin(codec, "Ext Spk");
	snd_soc_dapm_disable_pin(codec, "Headset Jack");

	/* TWL4030 not connected pins */
	snd_soc_dapm_nc_pin(codec, "AUXL");
	snd_soc_dapm_nc_pin(codec, "AUXR");
	snd_soc_dapm_nc_pin(codec, "CARKITMIC");
	snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
	snd_soc_dapm_nc_pin(codec, "DIGIMIC1");

	snd_soc_dapm_nc_pin(codec, "OUTL");
	snd_soc_dapm_nc_pin(codec, "OUTR");
	snd_soc_dapm_nc_pin(codec, "EARPIECE");
	snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
	snd_soc_dapm_nc_pin(codec, "PREDRIVER");
	snd_soc_dapm_nc_pin(codec, "CARKITL");
	snd_soc_dapm_nc_pin(codec, "CARKITR");

	ret = snd_soc_dapm_sync(codec);

	return ret;
}

/* 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 Jack",
		.mask = SND_JACK_HEADSET,
	},
};

/* Headset jack detection gpios */
static struct snd_soc_jack_gpio hs_jack_gpios[] = {
	{
		.gpio = (OMAP_MAX_GPIO_LINES + 2),
		.name = "hsdet-gpio",
		.report = SND_JACK_HEADSET,
		.debounce_time = 200,
	},
};

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp3430_dai = {
	.name = "TWL4030",
	.stream_name = "TWL4030",
	.cpu_dai = &omap_mcbsp_dai[0],
	.codec_dai = &twl4030_dai,
	.init = sdp3430_twl4030_init,
	.ops = &sdp3430_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_sdp3430 = {
	.name = "SDP3430",
	.platform = &omap_soc_platform,
	.dai_link = &sdp3430_dai,
	.num_links = 1,
};

/* Audio subsystem */
static struct snd_soc_device sdp3430_snd_devdata = {
	.card = &snd_soc_sdp3430,
	.codec_dev = &soc_codec_dev_twl4030,
};

static struct platform_device *sdp3430_snd_device;

static int __init sdp3430_soc_init(void)
{
	int ret;

	if (!machine_is_omap_3430sdp()) {
		pr_debug("Not SDP3430!\n");
		return -ENODEV;
	}
	printk(KERN_INFO "SDP3430 SoC init\n");

	sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
	if (!sdp3430_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(sdp3430_snd_device, &sdp3430_snd_devdata);
	sdp3430_snd_devdata.dev = &sdp3430_snd_device->dev;
	*(unsigned int *)sdp3430_dai.cpu_dai->private_data = 1; /* McBSP2 */

	ret = platform_device_add(sdp3430_snd_device);
	if (ret)
		goto err1;

	/* Headset jack detection */
	ret = snd_soc_jack_new(&snd_soc_sdp3430, "SDP3430 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 (ret)
		return ret;

	ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
				hs_jack_gpios);

	return ret;

err1:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(sdp3430_snd_device);

	return ret;
}
module_init(sdp3430_soc_init);

static void __exit sdp3430_soc_exit(void)
{
	snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
				hs_jack_gpios);

	platform_device_unregister(sdp3430_snd_device);
}
module_exit(sdp3430_soc_exit);

MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
MODULE_DESCRIPTION("ALSA SoC SDP3430");
MODULE_LICENSE("GPL");
Commit	Line	Data
4451582f MLC	1	/*
	2	* sdp3430.c -- SoC audio for TI OMAP3430 SDP
	3	*
	4	* Author: Misael Lopez Cruz <x0052729@ti.com>
	5	*
	6	* Based on:
	7	* Author: Steve Sakoman <steve@sakoman.com>
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License
	11	* version 2 as published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	21	* 02110-1301 USA
	22	*
	23	*/
	24
	25	#include <linux/clk.h>
	26	#include <linux/platform_device.h>
	27	#include <sound/core.h>
	28	#include <sound/pcm.h>
	29	#include <sound/soc.h>
	30	#include <sound/soc-dapm.h>
de0b9888	31	#include <sound/jack.h>
4451582f MLC	32
	33	#include <asm/mach-types.h>
	34	#include <mach/hardware.h>
	35	#include <mach/gpio.h>
	36	#include <mach/mcbsp.h>
	37
	38	#include "omap-mcbsp.h"
	39	#include "omap-pcm.h"
	40	#include "../codecs/twl4030.h"
	41
	42	static int sdp3430_hw_params(struct snd_pcm_substream *substream,
	43	struct snd_pcm_hw_params *params)
	44	{
	45	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	46	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	47	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	48	int ret;
	49
	50	/* Set codec DAI configuration */
	51	ret = snd_soc_dai_set_fmt(codec_dai,
	52	SND_SOC_DAIFMT_I2S \|
	53	SND_SOC_DAIFMT_NB_NF \|
	54	SND_SOC_DAIFMT_CBM_CFM);
	55	if (ret < 0) {
	56	printk(KERN_ERR "can't set codec DAI configuration\n");
	57	return ret;
	58	}
	59
	60	/* Set cpu DAI configuration */
	61	ret = snd_soc_dai_set_fmt(cpu_dai,
	62	SND_SOC_DAIFMT_I2S \|
	63	SND_SOC_DAIFMT_NB_NF \|
	64	SND_SOC_DAIFMT_CBM_CFM);
	65	if (ret < 0) {
	66	printk(KERN_ERR "can't set cpu DAI configuration\n");
	67	return ret;
	68	}
	69
	70	/* Set the codec system clock for DAC and ADC */
	71	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	72	SND_SOC_CLOCK_IN);
	73	if (ret < 0) {
	74	printk(KERN_ERR "can't set codec system clock\n");
	75	return ret;
	76	}
	77
	78	return 0;
	79	}
	80
	81	static struct snd_soc_ops sdp3430_ops = {
	82	.hw_params = sdp3430_hw_params,
	83	};
	84
979c036e LCM	85	/* SDP3430 machine DAPM */
	86	static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
	87	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	88	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	89	SND_SOC_DAPM_HP("Headset Jack", NULL),
	90	};
	91
	92	static const struct snd_soc_dapm_route audio_map[] = {
	93	/* External Mics: MAINMIC, SUBMIC with bias*/
	94	{"MAINMIC", NULL, "Mic Bias 1"},
	95	{"SUBMIC", NULL, "Mic Bias 2"},
	96	{"Mic Bias 1", NULL, "Ext Mic"},
	97	{"Mic Bias 2", NULL, "Ext Mic"},
	98
	99	/* External Speakers: HFL, HFR */
	100	{"Ext Spk", NULL, "HFL"},
	101	{"Ext Spk", NULL, "HFR"},
	102
	103	/* Headset: HSMIC (with bias), HSOL, HSOR */
	104	{"Headset Jack", NULL, "HSOL"},
	105	{"Headset Jack", NULL, "HSOR"},
	106	{"HSMIC", NULL, "Headset Mic Bias"},
	107	{"Headset Mic Bias", NULL, "Headset Jack"},
	108	};
	109
	110	static int sdp3430_twl4030_init(struct snd_soc_codec *codec)
	111	{
	112	int ret;
	113
	114	/* Add SDP3430 specific widgets */
	115	ret = snd_soc_dapm_new_controls(codec, sdp3430_twl4030_dapm_widgets,
	116	ARRAY_SIZE(sdp3430_twl4030_dapm_widgets));
	117	if (ret)
	118	return ret;
	119
	120	/* Set up SDP3430 specific audio path audio_map */
	121	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	122
	123	/* SDP3430 connected pins */
	124	snd_soc_dapm_enable_pin(codec, "Ext Mic");
	125	snd_soc_dapm_enable_pin(codec, "Ext Spk");
de0b9888	126	snd_soc_dapm_disable_pin(codec, "Headset Jack");
979c036e LCM	127
	128	/* TWL4030 not connected pins */
	129	snd_soc_dapm_nc_pin(codec, "AUXL");
	130	snd_soc_dapm_nc_pin(codec, "AUXR");
	131	snd_soc_dapm_nc_pin(codec, "CARKITMIC");
	132	snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
	133	snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
	134
	135	snd_soc_dapm_nc_pin(codec, "OUTL");
	136	snd_soc_dapm_nc_pin(codec, "OUTR");
	137	snd_soc_dapm_nc_pin(codec, "EARPIECE");
	138	snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
	139	snd_soc_dapm_nc_pin(codec, "PREDRIVER");
	140	snd_soc_dapm_nc_pin(codec, "CARKITL");
	141	snd_soc_dapm_nc_pin(codec, "CARKITR");
	142
	143	ret = snd_soc_dapm_sync(codec);
	144
	145	return ret;
	146	}
	147
de0b9888 LCM	148	/* Headset jack */
	149	static struct snd_soc_jack hs_jack;
	150
	151	/* Headset jack detection DAPM pins */
	152	static struct snd_soc_jack_pin hs_jack_pins[] = {
	153	{
	154	.pin = "Headset Jack",
	155	.mask = SND_JACK_HEADSET,
	156	},
	157	};
	158
	159	/* Headset jack detection gpios */
	160	static struct snd_soc_jack_gpio hs_jack_gpios[] = {
	161	{
	162	.gpio = (OMAP_MAX_GPIO_LINES + 2),
	163	.name = "hsdet-gpio",
	164	.report = SND_JACK_HEADSET,
	165	.debounce_time = 200,
	166	},
	167	};
	168
4451582f MLC	169	/* Digital audio interface glue - connects codec <--> CPU */
	170	static struct snd_soc_dai_link sdp3430_dai = {
	171	.name = "TWL4030",
	172	.stream_name = "TWL4030",
	173	.cpu_dai = &omap_mcbsp_dai[0],
	174	.codec_dai = &twl4030_dai,
979c036e	175	.init = sdp3430_twl4030_init,
4451582f MLC	176	.ops = &sdp3430_ops,
	177	};
	178
	179	/* Audio machine driver */
272edb00	180	static struct snd_soc_card snd_soc_sdp3430 = {
4451582f	181	.name = "SDP3430",
87689d56	182	.platform = &omap_soc_platform,
4451582f MLC	183	.dai_link = &sdp3430_dai,
	184	.num_links = 1,
	185	};
	186
	187	/* Audio subsystem */
	188	static struct snd_soc_device sdp3430_snd_devdata = {
272edb00	189	.card = &snd_soc_sdp3430,
4451582f MLC	190	.codec_dev = &soc_codec_dev_twl4030,
	191	};
	192
	193	static struct platform_device *sdp3430_snd_device;
	194
	195	static int __init sdp3430_soc_init(void)
	196	{
	197	int ret;
	198
	199	if (!machine_is_omap_3430sdp()) {
	200	pr_debug("Not SDP3430!\n");
	201	return -ENODEV;
	202	}
	203	printk(KERN_INFO "SDP3430 SoC init\n");
	204
	205	sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
	206	if (!sdp3430_snd_device) {
	207	printk(KERN_ERR "Platform device allocation failed\n");
	208	return -ENOMEM;
	209	}
	210
	211	platform_set_drvdata(sdp3430_snd_device, &sdp3430_snd_devdata);
	212	sdp3430_snd_devdata.dev = &sdp3430_snd_device->dev;
	213	(unsigned int )sdp3430_dai.cpu_dai->private_data = 1; /* McBSP2 */
	214
	215	ret = platform_device_add(sdp3430_snd_device);
	216	if (ret)
	217	goto err1;
	218
de0b9888 LCM	219	/* Headset jack detection */
	220	ret = snd_soc_jack_new(&snd_soc_sdp3430, "SDP3430 headset jack",
	221	SND_JACK_HEADSET, &hs_jack);
	222	if (ret)
	223	return ret;
	224
	225	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
	226	hs_jack_pins);
	227	if (ret)
	228	return ret;
	229
	230	ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
	231	hs_jack_gpios);
	232
	233	return ret;
4451582f MLC	234
	235	err1:
	236	printk(KERN_ERR "Unable to add platform device\n");
	237	platform_device_put(sdp3430_snd_device);
	238
	239	return ret;
	240	}
	241	module_init(sdp3430_soc_init);
	242
	243	static void __exit sdp3430_soc_exit(void)
	244	{
de0b9888 LCM	245	snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
	246	hs_jack_gpios);
	247
4451582f MLC	248	platform_device_unregister(sdp3430_snd_device);
	249	}
	250	module_exit(sdp3430_soc_exit);
	251
	252	MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
	253	MODULE_DESCRIPTION("ALSA SoC SDP3430");
	254	MODULE_LICENSE("GPL");
	255