[deliverable/linux.git] / sound / soc / omap / zoom2.c

/*
 * zoom2.c  --  SoC audio for Zoom2
 *
 * 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 <mach/hardware.h>
#include <mach/gpio.h>
#include <mach/board-zoom.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"

#define ZOOM2_HEADSET_MUX_GPIO		(OMAP_MAX_GPIO_LINES + 15)

static int zoom2_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 zoom2_ops = {
	.hw_params = zoom2_hw_params,
};

/* Zoom2 machine DAPM */
static const struct snd_soc_dapm_widget zoom2_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),
	SND_SOC_DAPM_LINE("Aux In", 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 Stereophone:  HSOL, HSOR */
	{"Headset Stereophone", NULL, "HSOL"},
	{"Headset Stereophone", NULL, "HSOR"},

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

	/* Aux In: AUXL, AUXR */
	{"Aux In", NULL, "AUXL"},
	{"Aux In", NULL, "AUXR"},
};

static int zoom2_twl4030_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	/* TWL4030 not connected pins */
	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, "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");

	return 0;
}

static int zoom2_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 zoom2_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 = zoom2_twl4030_init,
		.ops = &zoom2_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 = zoom2_twl4030_voice_init,
		.ops = &zoom2_ops,
	},
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_zoom2 = {
	.name = "Zoom2",
	.dai_link = zoom2_dai,
	.num_links = ARRAY_SIZE(zoom2_dai),

	.dapm_widgets = zoom2_twl4030_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(zoom2_twl4030_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

static struct platform_device *zoom2_snd_device;

static int __init zoom2_soc_init(void)
{
	int ret;

	if (!machine_is_omap_zoom2())
		return -ENODEV;
	printk(KERN_INFO "Zoom2 SoC init\n");

	zoom2_snd_device = platform_device_alloc("soc-audio", -1);
	if (!zoom2_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(zoom2_snd_device, &snd_soc_zoom2);
	ret = platform_device_add(zoom2_snd_device);
	if (ret)
		goto err1;

	BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
	gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);

	BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0);
	gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0);

	return 0;

err1:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(zoom2_snd_device);

	return ret;
}
module_init(zoom2_soc_init);

static void __exit zoom2_soc_exit(void)
{
	gpio_free(ZOOM2_HEADSET_MUX_GPIO);
	gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);

	platform_device_unregister(zoom2_snd_device);
}
module_exit(zoom2_soc_exit);

MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
MODULE_DESCRIPTION("ALSA SoC Zoom2");
MODULE_LICENSE("GPL");
Commit	Line	Data
df205936 LCM	1	/*
	2	* zoom2.c -- SoC audio for Zoom2
	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>
df205936 LCM	27
	28	#include <asm/mach-types.h>
	29	#include <mach/hardware.h>
	30	#include <mach/gpio.h>
f0fba2ad	31	#include <mach/board-zoom.h>
ce491cf8	32	#include <plat/mcbsp.h>
df205936	33
f0fba2ad	34	/* Register descriptions for twl4030 codec part */
57fe7251	35	#include <linux/mfd/twl4030-audio.h>
f0fba2ad	36
df205936 LCM	37	#include "omap-mcbsp.h"
df205936 LCM	38	#include "omap-pcm.h"
df205936	39
1b6ebdd7	40	#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
df205936 LCM	41
	42	static int zoom2_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;
f0fba2ad	46	struct snd_soc_dai *codec_dai = rtd->codec_dai;
df205936 LCM	47	int ret;
df205936 LCM	48
df205936 LCM	49	/* Set the codec system clock for DAC and ADC */
	50	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	51	SND_SOC_CLOCK_IN);
	52	if (ret < 0) {
	53	printk(KERN_ERR "can't set codec system clock\n");
	54	return ret;
	55	}
	56
	57	return 0;
	58	}
	59
	60	static struct snd_soc_ops zoom2_ops = {
	61	.hw_params = zoom2_hw_params,
	62	};
	63
df205936 LCM	64	/* Zoom2 machine DAPM */
	65	static const struct snd_soc_dapm_widget zoom2_twl4030_dapm_widgets[] = {
	66	SND_SOC_DAPM_MIC("Ext Mic", NULL),
	67	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	68	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	69	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
	70	SND_SOC_DAPM_LINE("Aux In", NULL),
	71	};
	72
	73	static const struct snd_soc_dapm_route audio_map[] = {
	74	/* External Mics: MAINMIC, SUBMIC with bias*/
	75	{"MAINMIC", NULL, "Mic Bias 1"},
	76	{"SUBMIC", NULL, "Mic Bias 2"},
	77	{"Mic Bias 1", NULL, "Ext Mic"},
	78	{"Mic Bias 2", NULL, "Ext Mic"},
	79
	80	/* External Speakers: HFL, HFR */
	81	{"Ext Spk", NULL, "HFL"},
	82	{"Ext Spk", NULL, "HFR"},
	83
	84	/* Headset Stereophone: HSOL, HSOR */
	85	{"Headset Stereophone", NULL, "HSOL"},
	86	{"Headset Stereophone", NULL, "HSOR"},
	87
	88	/* Headset Mic: HSMIC with bias */
	89	{"HSMIC", NULL, "Headset Mic Bias"},
	90	{"Headset Mic Bias", NULL, "Headset Mic"},
	91
	92	/* Aux In: AUXL, AUXR */
	93	{"Aux In", NULL, "AUXL"},
	94	{"Aux In", NULL, "AUXR"},
	95	};
	96
f0fba2ad	97	static int zoom2_twl4030_init(struct snd_soc_pcm_runtime *rtd)
df205936	98	{
f0fba2ad	99	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	100	struct snd_soc_dapm_context *dapm = &codec->dapm;
df205936	101
df205936	102	/* TWL4030 not connected pins */
ce6120cc LG	103	snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
	104	snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
	105	snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
	106	snd_soc_dapm_nc_pin(dapm, "EARPIECE");
	107	snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
	108	snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
	109	snd_soc_dapm_nc_pin(dapm, "CARKITL");
	110	snd_soc_dapm_nc_pin(dapm, "CARKITR");
	111
cb424877	112	return 0;
df205936 LCM	113	}
df205936 LCM	114
f0fba2ad	115	static int zoom2_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
df205936	116	{
f0fba2ad	117	struct snd_soc_codec *codec = rtd->codec;
df205936 LCM	118	unsigned short reg;
	119
	120	/* Enable voice interface */
f0fba2ad	121	reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
df205936	122	reg \|= TWL4030_VIF_DIN_EN \| TWL4030_VIF_DOUT_EN \| TWL4030_VIF_EN;
f0fba2ad	123	codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
df205936 LCM	124
	125	return 0;
	126	}
	127
	128	/* Digital audio interface glue - connects codec <--> CPU */
	129	static struct snd_soc_dai_link zoom2_dai[] = {
	130	{
	131	.name = "TWL4030 I2S",
	132	.stream_name = "TWL4030 Audio",
f0fba2ad LG	133	.cpu_dai_name = "omap-mcbsp-dai.1",
	134	.codec_dai_name = "twl4030-hifi",
	135	.platform_name = "omap-pcm-audio",
	136	.codec_name = "twl4030-codec",
cf9feff2 JN	137	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
cf9feff2 JN	138	SND_SOC_DAIFMT_CBM_CFM,
df205936 LCM	139	.init = zoom2_twl4030_init,
	140	.ops = &zoom2_ops,
	141	},
	142	{
	143	.name = "TWL4030 PCM",
	144	.stream_name = "TWL4030 Voice",
f0fba2ad LG	145	.cpu_dai_name = "omap-mcbsp-dai.2",
	146	.codec_dai_name = "twl4030-voice",
	147	.platform_name = "omap-pcm-audio",
	148	.codec_name = "twl4030-codec",
cf9feff2 JN	149	.dai_fmt = SND_SOC_DAIFMT_DSP_A \| SND_SOC_DAIFMT_IB_NF \|
cf9feff2 JN	150	SND_SOC_DAIFMT_CBM_CFM,
df205936	151	.init = zoom2_twl4030_voice_init,
a3c6dac2	152	.ops = &zoom2_ops,
df205936 LCM	153	},
	154	};
	155
	156	/* Audio machine driver */
	157	static struct snd_soc_card snd_soc_zoom2 = {
	158	.name = "Zoom2",
df205936 LCM	159	.dai_link = zoom2_dai,
df205936 LCM	160	.num_links = ARRAY_SIZE(zoom2_dai),
1083dbd1 PU	161
	162	.dapm_widgets = zoom2_twl4030_dapm_widgets,
	163	.num_dapm_widgets = ARRAY_SIZE(zoom2_twl4030_dapm_widgets),
	164	.dapm_routes = audio_map,
	165	.num_dapm_routes = ARRAY_SIZE(audio_map),
df205936 LCM	166	};
df205936 LCM	167
df205936 LCM	168	static struct platform_device *zoom2_snd_device;
	169
	170	static int __init zoom2_soc_init(void)
	171	{
	172	int ret;
	173
ec588ae6	174	if (!machine_is_omap_zoom2())
df205936	175	return -ENODEV;
df205936 LCM	176	printk(KERN_INFO "Zoom2 SoC init\n");
	177
	178	zoom2_snd_device = platform_device_alloc("soc-audio", -1);
	179	if (!zoom2_snd_device) {
	180	printk(KERN_ERR "Platform device allocation failed\n");
	181	return -ENOMEM;
	182	}
	183
f0fba2ad	184	platform_set_drvdata(zoom2_snd_device, &snd_soc_zoom2);
df205936 LCM	185	ret = platform_device_add(zoom2_snd_device);
	186	if (ret)
	187	goto err1;
	188
	189	BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
	190	gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
	191
1b6ebdd7 CVJ	192	BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0);
	193	gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0);
	194
df205936 LCM	195	return 0;
	196
	197	err1:
	198	printk(KERN_ERR "Unable to add platform device\n");
	199	platform_device_put(zoom2_snd_device);
	200
	201	return ret;
	202	}
	203	module_init(zoom2_soc_init);
	204
	205	static void __exit zoom2_soc_exit(void)
	206	{
	207	gpio_free(ZOOM2_HEADSET_MUX_GPIO);
1b6ebdd7	208	gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);
df205936 LCM	209
	210	platform_device_unregister(zoom2_snd_device);
	211	}
	212	module_exit(zoom2_soc_exit);
	213
	214	MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
	215	MODULE_DESCRIPTION("ALSA SoC Zoom2");
	216	MODULE_LICENSE("GPL");
	217