[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 <linux/i2c/twl.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>

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

/* Register descriptions for twl4030 codec part */
#include <linux/mfd/twl4030-audio.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"

/* TWL4030 PMBR1 Register */
#define TWL4030_INTBR_PMBR1		0x0D
/* TWL4030 PMBR1 Register GPIO6 mux bit */
#define TWL4030_GPIO6_PWM0_MUTE(value)	(value << 2)

static struct snd_soc_card snd_soc_sdp3430;

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->codec_dai;
	int 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,
};

static int sdp3430_hw_voice_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 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_voice_ops = {
	.hw_params = sdp3430_hw_voice_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,
	},
};

/* 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,
	},
};

/* 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_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_HP("Headset Stereophone", 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 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"},
};

static int sdp3430_twl4030_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 SDP3430 specific widgets */
	ret = snd_soc_dapm_new_controls(dapm, 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(dapm, audio_map, ARRAY_SIZE(audio_map));

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

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

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

	ret = snd_soc_dapm_sync(dapm);
	if (ret)
		return ret;

	/* 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 (ret)
		return ret;

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

	return ret;
}

static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	unsigned short reg;

	/* Enable voice interface */
	reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
	reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
	codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);

	return 0;
}


/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp3430_dai[] = {
	{
		.name = "TWL4030 I2S",
		.stream_name = "TWL4030 Audio",
		.cpu_dai_name = "omap-mcbsp-dai.1",
		.codec_dai_name = "twl4030-hifi",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			   SND_SOC_DAIFMT_CBM_CFM,
		.init = sdp3430_twl4030_init,
		.ops = &sdp3430_ops,
	},
	{
		.name = "TWL4030 PCM",
		.stream_name = "TWL4030 Voice",
		.cpu_dai_name = "omap-mcbsp-dai.2",
		.codec_dai_name = "twl4030-voice",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
			   SND_SOC_DAIFMT_CBM_CFM,
		.init = sdp3430_twl4030_voice_init,
		.ops = &sdp3430_voice_ops,
	},
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_sdp3430 = {
	.name = "SDP3430",
	.dai_link = sdp3430_dai,
	.num_links = ARRAY_SIZE(sdp3430_dai),
};

static struct platform_device *sdp3430_snd_device;

static int __init sdp3430_soc_init(void)
{
	int ret;
	u8 pin_mux;

	if (!machine_is_omap_3430sdp())
		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, &snd_soc_sdp3430);

	/* Set TWL4030 GPIO6 as EXTMUTE signal */
	twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
						TWL4030_INTBR_PMBR1);
	pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
	pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
	twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
						TWL4030_INTBR_PMBR1);

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

	return 0;

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
	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 <linux/i2c/twl.h>
	28	#include <sound/core.h>
	29	#include <sound/pcm.h>
	30	#include <sound/soc.h>
	31	#include <sound/jack.h>
	32
	33	#include <asm/mach-types.h>
	34	#include <mach/hardware.h>
	35	#include <mach/gpio.h>
	36	#include <plat/mcbsp.h>
	37
	38	/* Register descriptions for twl4030 codec part */
	39	#include <linux/mfd/twl4030-audio.h>
	40
	41	#include "omap-mcbsp.h"
	42	#include "omap-pcm.h"
	43
	44	/* TWL4030 PMBR1 Register */
	45	#define TWL4030_INTBR_PMBR1 0x0D
	46	/* TWL4030 PMBR1 Register GPIO6 mux bit */
	47	#define TWL4030_GPIO6_PWM0_MUTE(value) (value << 2)
	48
	49	static struct snd_soc_card snd_soc_sdp3430;
	50
	51	static int sdp3430_hw_params(struct snd_pcm_substream *substream,
	52	struct snd_pcm_hw_params *params)
	53	{
	54	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	55	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	56	int ret;
	57
	58	/* Set the codec system clock for DAC and ADC */
	59	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	60	SND_SOC_CLOCK_IN);
	61	if (ret < 0) {
	62	printk(KERN_ERR "can't set codec system clock\n");
	63	return ret;
	64	}
	65
	66	return 0;
	67	}
	68
	69	static struct snd_soc_ops sdp3430_ops = {
	70	.hw_params = sdp3430_hw_params,
	71	};
	72
	73	static int sdp3430_hw_voice_params(struct snd_pcm_substream *substream,
	74	struct snd_pcm_hw_params *params)
	75	{
	76	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	77	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	78	int ret;
	79
	80	/* Set the codec system clock for DAC and ADC */
	81	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	82	SND_SOC_CLOCK_IN);
	83	if (ret < 0) {
	84	printk(KERN_ERR "can't set codec system clock\n");
	85	return ret;
	86	}
	87
	88	return 0;
	89	}
	90
	91	static struct snd_soc_ops sdp3430_voice_ops = {
	92	.hw_params = sdp3430_hw_voice_params,
	93	};
	94
	95	/* Headset jack */
	96	static struct snd_soc_jack hs_jack;
	97
	98	/* Headset jack detection DAPM pins */
	99	static struct snd_soc_jack_pin hs_jack_pins[] = {
	100	{
	101	.pin = "Headset Mic",
	102	.mask = SND_JACK_MICROPHONE,
	103	},
	104	{
	105	.pin = "Headset Stereophone",
	106	.mask = SND_JACK_HEADPHONE,
	107	},
	108	};
	109
	110	/* Headset jack detection gpios */
	111	static struct snd_soc_jack_gpio hs_jack_gpios[] = {
	112	{
	113	.gpio = (OMAP_MAX_GPIO_LINES + 2),
	114	.name = "hsdet-gpio",
	115	.report = SND_JACK_HEADSET,
	116	.debounce_time = 200,
	117	},
	118	};
	119
	120	/* SDP3430 machine DAPM */
	121	static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
	122	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	123	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	124	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	125	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
	126	};
	127
	128	static const struct snd_soc_dapm_route audio_map[] = {
	129	/* External Mics: MAINMIC, SUBMIC with bias*/
	130	{"MAINMIC", NULL, "Mic Bias 1"},
	131	{"SUBMIC", NULL, "Mic Bias 2"},
	132	{"Mic Bias 1", NULL, "Ext Mic"},
	133	{"Mic Bias 2", NULL, "Ext Mic"},
	134
	135	/* External Speakers: HFL, HFR */
	136	{"Ext Spk", NULL, "HFL"},
	137	{"Ext Spk", NULL, "HFR"},
	138
	139	/* Headset Mic: HSMIC with bias */
	140	{"HSMIC", NULL, "Headset Mic Bias"},
	141	{"Headset Mic Bias", NULL, "Headset Mic"},
	142
	143	/* Headset Stereophone (Headphone): HSOL, HSOR */
	144	{"Headset Stereophone", NULL, "HSOL"},
	145	{"Headset Stereophone", NULL, "HSOR"},
	146	};
	147
	148	static int sdp3430_twl4030_init(struct snd_soc_pcm_runtime *rtd)
	149	{
	150	struct snd_soc_codec *codec = rtd->codec;
	151	struct snd_soc_dapm_context *dapm = &codec->dapm;
	152	int ret;
	153
	154	/* Add SDP3430 specific widgets */
	155	ret = snd_soc_dapm_new_controls(dapm, sdp3430_twl4030_dapm_widgets,
	156	ARRAY_SIZE(sdp3430_twl4030_dapm_widgets));
	157	if (ret)
	158	return ret;
	159
	160	/* Set up SDP3430 specific audio path audio_map */
	161	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
	162
	163	/* SDP3430 connected pins */
	164	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
	165	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	166	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
	167	snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
	168
	169	/* TWL4030 not connected pins */
	170	snd_soc_dapm_nc_pin(dapm, "AUXL");
	171	snd_soc_dapm_nc_pin(dapm, "AUXR");
	172	snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
	173	snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
	174	snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
	175
	176	snd_soc_dapm_nc_pin(dapm, "OUTL");
	177	snd_soc_dapm_nc_pin(dapm, "OUTR");
	178	snd_soc_dapm_nc_pin(dapm, "EARPIECE");
	179	snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
	180	snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
	181	snd_soc_dapm_nc_pin(dapm, "CARKITL");
	182	snd_soc_dapm_nc_pin(dapm, "CARKITR");
	183
	184	ret = snd_soc_dapm_sync(dapm);
	185	if (ret)
	186	return ret;
	187
	188	/* Headset jack detection */
	189	ret = snd_soc_jack_new(codec, "Headset Jack",
	190	SND_JACK_HEADSET, &hs_jack);
	191	if (ret)
	192	return ret;
	193
	194	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
	195	hs_jack_pins);
	196	if (ret)
	197	return ret;
	198
	199	ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
	200	hs_jack_gpios);
	201
	202	return ret;
	203	}
	204
	205	static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
	206	{
	207	struct snd_soc_codec *codec = rtd->codec;
	208	unsigned short reg;
	209
	210	/* Enable voice interface */
	211	reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
	212	reg \|= TWL4030_VIF_DIN_EN \| TWL4030_VIF_DOUT_EN \| TWL4030_VIF_EN;
	213	codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
	214
	215	return 0;
	216	}
	217
	218
	219	/* Digital audio interface glue - connects codec <--> CPU */
	220	static struct snd_soc_dai_link sdp3430_dai[] = {
	221	{
	222	.name = "TWL4030 I2S",
	223	.stream_name = "TWL4030 Audio",
	224	.cpu_dai_name = "omap-mcbsp-dai.1",
	225	.codec_dai_name = "twl4030-hifi",
	226	.platform_name = "omap-pcm-audio",
	227	.codec_name = "twl4030-codec",
	228	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	229	SND_SOC_DAIFMT_CBM_CFM,
	230	.init = sdp3430_twl4030_init,
	231	.ops = &sdp3430_ops,
	232	},
	233	{
	234	.name = "TWL4030 PCM",
	235	.stream_name = "TWL4030 Voice",
	236	.cpu_dai_name = "omap-mcbsp-dai.2",
	237	.codec_dai_name = "twl4030-voice",
	238	.platform_name = "omap-pcm-audio",
	239	.codec_name = "twl4030-codec",
	240	.dai_fmt = SND_SOC_DAIFMT_DSP_A \| SND_SOC_DAIFMT_IB_NF \|
	241	SND_SOC_DAIFMT_CBM_CFM,
	242	.init = sdp3430_twl4030_voice_init,
	243	.ops = &sdp3430_voice_ops,
	244	},
	245	};
	246
	247	/* Audio machine driver */
	248	static struct snd_soc_card snd_soc_sdp3430 = {
	249	.name = "SDP3430",
	250	.dai_link = sdp3430_dai,
	251	.num_links = ARRAY_SIZE(sdp3430_dai),
	252	};
	253
	254	static struct platform_device *sdp3430_snd_device;
	255
	256	static int __init sdp3430_soc_init(void)
	257	{
	258	int ret;
	259	u8 pin_mux;
	260
	261	if (!machine_is_omap_3430sdp())
	262	return -ENODEV;
	263	printk(KERN_INFO "SDP3430 SoC init\n");
	264
	265	sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
	266	if (!sdp3430_snd_device) {
	267	printk(KERN_ERR "Platform device allocation failed\n");
	268	return -ENOMEM;
	269	}
	270
	271	platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430);
	272
	273	/* Set TWL4030 GPIO6 as EXTMUTE signal */
	274	twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
	275	TWL4030_INTBR_PMBR1);
	276	pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
	277	pin_mux \|= TWL4030_GPIO6_PWM0_MUTE(0x02);
	278	twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
	279	TWL4030_INTBR_PMBR1);
	280
	281	ret = platform_device_add(sdp3430_snd_device);
	282	if (ret)
	283	goto err1;
	284
	285	return 0;
	286
	287	err1:
	288	printk(KERN_ERR "Unable to add platform device\n");
	289	platform_device_put(sdp3430_snd_device);
	290
	291	return ret;
	292	}
	293	module_init(sdp3430_soc_init);
	294
	295	static void __exit sdp3430_soc_exit(void)
	296	{
	297	snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
	298	hs_jack_gpios);
	299
	300	platform_device_unregister(sdp3430_snd_device);
	301	}
	302	module_exit(sdp3430_soc_exit);
	303
	304	MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
	305	MODULE_DESCRIPTION("ALSA SoC SDP3430");
	306	MODULE_LICENSE("GPL");
	307