[deliverable/linux.git] / sound / soc / s6000 / s6105-ipcam.c

/*
 * ASoC driver for Stretch s6105 IP camera platform
 *
 * Author:      Daniel Gloeckner, <dg@emlix.com>
 * Copyright:   (C) 2009 emlix GmbH <info@emlix.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.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

#include <variant/dmac.h>

#include "s6000-pcm.h"
#include "s6000-i2s.h"

#define S6105_CAM_CODEC_CLOCK 12288000

static int s6105_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;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int ret = 0;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
					     SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM |
					   SND_SOC_DAIFMT_NB_NF);
	if (ret < 0)
		return ret;

	/* set the codec system clock */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, S6105_CAM_CODEC_CLOCK,
					    SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops s6105_ops = {
	.hw_params = s6105_hw_params,
};

/* s6105 machine dapm widgets */
static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	SND_SOC_DAPM_LINE("Audio Out Differential", NULL),
	SND_SOC_DAPM_LINE("Audio Out Stereo", NULL),
	SND_SOC_DAPM_LINE("Audio In", NULL),
};

/* s6105 machine audio_mapnections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {
	/* Audio Out connected to HPLOUT, HPLCOM, HPROUT */
	{"Audio Out Differential", NULL, "HPLOUT"},
	{"Audio Out Differential", NULL, "HPLCOM"},
	{"Audio Out Stereo", NULL, "HPLOUT"},
	{"Audio Out Stereo", NULL, "HPROUT"},

	/* Audio In connected to LINE1L, LINE1R */
	{"LINE1L", NULL, "Audio In"},
	{"LINE1R", NULL, "Audio In"},
};

static int output_type_info(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 2;
	if (uinfo->value.enumerated.item) {
		uinfo->value.enumerated.item = 1;
		strcpy(uinfo->value.enumerated.name, "HPLOUT/HPROUT");
	} else {
		strcpy(uinfo->value.enumerated.name, "HPLOUT/HPLCOM");
	}
	return 0;
}

static int output_type_get(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = kcontrol->private_value;
	return 0;
}

static int output_type_put(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_card *card = kcontrol->private_data;
	struct snd_soc_dapm_context *dapm = &card->dapm;
	unsigned int val = (ucontrol->value.enumerated.item[0] != 0);
	char *differential = "Audio Out Differential";
	char *stereo = "Audio Out Stereo";

	if (kcontrol->private_value == val)
		return 0;
	kcontrol->private_value = val;
	snd_soc_dapm_disable_pin(dapm, val ? differential : stereo);
	snd_soc_dapm_sync(dapm);
	snd_soc_dapm_enable_pin(dapm, val ? stereo : differential);
	snd_soc_dapm_sync(dapm);

	return 1;
}

static const struct snd_kcontrol_new audio_out_mux = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Master Output Mux",
	.index = 0,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = output_type_info,
	.get = output_type_get,
	.put = output_type_put,
	.private_value = 1 /* default to stereo */
};

/* Logic for a aic3x as connected on the s6105 ip camera ref design */
static int s6105_aic3x_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	struct snd_soc_card *card = rtd->card;

	/* not present */
	snd_soc_dapm_nc_pin(dapm, "MONO_LOUT");
	snd_soc_dapm_nc_pin(dapm, "LINE2L");
	snd_soc_dapm_nc_pin(dapm, "LINE2R");

	/* not connected */
	snd_soc_dapm_nc_pin(dapm, "MIC3L"); /* LINE2L on this chip */
	snd_soc_dapm_nc_pin(dapm, "MIC3R"); /* LINE2R on this chip */
	snd_soc_dapm_nc_pin(dapm, "LLOUT");
	snd_soc_dapm_nc_pin(dapm, "RLOUT");
	snd_soc_dapm_nc_pin(dapm, "HPRCOM");

	/* must correspond to audio_out_mux.private_value initializer */
	snd_soc_dapm_disable_pin(&card->dapm, "Audio Out Differential");

	snd_ctl_add(card->snd_card, snd_ctl_new1(&audio_out_mux, card));

	return 0;
}

/* s6105 digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link s6105_dai = {
	.name = "TLV320AIC31",
	.stream_name = "AIC31",
	.cpu_dai_name = "s6000-i2s",
	.codec_dai_name = "tlv320aic3x-hifi",
	.platform_name = "s6000-pcm-audio",
	.codec_name = "tlv320aic3x-codec.0-001a",
	.init = s6105_aic3x_init,
	.ops = &s6105_ops,
};

/* s6105 audio machine driver */
static struct snd_soc_card snd_soc_card_s6105 = {
	.name = "Stretch IP Camera",
	.owner = THIS_MODULE,
	.dai_link = &s6105_dai,
	.num_links = 1,

	.dapm_widgets = aic3x_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(aic3x_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

static struct s6000_snd_platform_data s6105_snd_data __initdata = {
	.wide		= 0,
	.channel_in	= 0,
	.channel_out	= 1,
	.lines_in	= 1,
	.lines_out	= 1,
	.same_rate	= 1,
};

static struct platform_device *s6105_snd_device;

/* temporary i2c device creation until this can be moved into the machine
 * support file.
*/
static struct i2c_board_info i2c_device[] = {
	{ I2C_BOARD_INFO("tlv320aic33", 0x18), }
};

static int __init s6105_init(void)
{
	int ret;

	i2c_register_board_info(0, i2c_device, ARRAY_SIZE(i2c_device));

	s6105_snd_device = platform_device_alloc("soc-audio", -1);
	if (!s6105_snd_device)
		return -ENOMEM;

	platform_set_drvdata(s6105_snd_device, &snd_soc_card_s6105);
	platform_device_add_data(s6105_snd_device, &s6105_snd_data,
				 sizeof(s6105_snd_data));

	ret = platform_device_add(s6105_snd_device);
	if (ret)
		platform_device_put(s6105_snd_device);

	return ret;
}

static void __exit s6105_exit(void)
{
	platform_device_unregister(s6105_snd_device);
}

module_init(s6105_init);
module_exit(s6105_exit);

MODULE_AUTHOR("Daniel Gloeckner");
MODULE_DESCRIPTION("Stretch s6105 IP camera ASoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
2b7dbbe0 DG	1	/*
	2	* ASoC driver for Stretch s6105 IP camera platform
	3	*
	4	* Author: Daniel Gloeckner, <dg@emlix.com>
	5	* Copyright: (C) 2009 emlix GmbH <info@emlix.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
	14	#include <linux/timer.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/platform_device.h>
aa6b904e	17	#include <linux/i2c.h>
2b7dbbe0 DG	18	#include <sound/core.h>
	19	#include <sound/pcm.h>
	20	#include <sound/soc.h>
2b7dbbe0 DG	21
	22	#include <variant/dmac.h>
	23
2b7dbbe0 DG	24	#include "s6000-pcm.h"
	25	#include "s6000-i2s.h"
	26
	27	#define S6105_CAM_CODEC_CLOCK 12288000
	28
	29	static int s6105_hw_params(struct snd_pcm_substream *substream,
	30	struct snd_pcm_hw_params *params)
	31	{
	32	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	33	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	34	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
2b7dbbe0 DG	35	int ret = 0;
	36
	37	/* set codec DAI configuration */
	38	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	39	SND_SOC_DAIFMT_CBM_CFM);
	40	if (ret < 0)
	41	return ret;
	42
	43	/* set cpu DAI configuration */
	44	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM \|
80fbe6ac	45	SND_SOC_DAIFMT_NB_NF);
2b7dbbe0 DG	46	if (ret < 0)
	47	return ret;
	48
	49	/* set the codec system clock */
	50	ret = snd_soc_dai_set_sysclk(codec_dai, 0, S6105_CAM_CODEC_CLOCK,
	51	SND_SOC_CLOCK_OUT);
	52	if (ret < 0)
	53	return ret;
	54
	55	return 0;
	56	}
	57
	58	static struct snd_soc_ops s6105_ops = {
	59	.hw_params = s6105_hw_params,
	60	};
	61
	62	/* s6105 machine dapm widgets */
	63	static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	64	SND_SOC_DAPM_LINE("Audio Out Differential", NULL),
	65	SND_SOC_DAPM_LINE("Audio Out Stereo", NULL),
	66	SND_SOC_DAPM_LINE("Audio In", NULL),
	67	};
	68
	69	/* s6105 machine audio_mapnections to the codec pins */
	70	static const struct snd_soc_dapm_route audio_map[] = {
	71	/* Audio Out connected to HPLOUT, HPLCOM, HPROUT */
	72	{"Audio Out Differential", NULL, "HPLOUT"},
	73	{"Audio Out Differential", NULL, "HPLCOM"},
	74	{"Audio Out Stereo", NULL, "HPLOUT"},
	75	{"Audio Out Stereo", NULL, "HPROUT"},
	76
	77	/* Audio In connected to LINE1L, LINE1R */
	78	{"LINE1L", NULL, "Audio In"},
	79	{"LINE1R", NULL, "Audio In"},
	80	};
	81
	82	static int output_type_info(struct snd_kcontrol *kcontrol,
	83	struct snd_ctl_elem_info *uinfo)
	84	{
	85	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	86	uinfo->count = 1;
	87	uinfo->value.enumerated.items = 2;
	88	if (uinfo->value.enumerated.item) {
	89	uinfo->value.enumerated.item = 1;
	90	strcpy(uinfo->value.enumerated.name, "HPLOUT/HPROUT");
	91	} else {
	92	strcpy(uinfo->value.enumerated.name, "HPLOUT/HPLCOM");
	93	}
	94	return 0;
	95	}
	96
	97	static int output_type_get(struct snd_kcontrol *kcontrol,
	98	struct snd_ctl_elem_value *ucontrol)
	99	{
	100	ucontrol->value.enumerated.item[0] = kcontrol->private_value;
	101	return 0;
	102	}
	103
	104	static int output_type_put(struct snd_kcontrol *kcontrol,
	105	struct snd_ctl_elem_value *ucontrol)
	106	{
b92af2b8 LPC	107	struct snd_soc_card *card = kcontrol->private_data;
b92af2b8 LPC	108	struct snd_soc_dapm_context *dapm = &card->dapm;
2b7dbbe0 DG	109	unsigned int val = (ucontrol->value.enumerated.item[0] != 0);
	110	char *differential = "Audio Out Differential";
	111	char *stereo = "Audio Out Stereo";
	112
	113	if (kcontrol->private_value == val)
	114	return 0;
	115	kcontrol->private_value = val;
ce6120cc LG	116	snd_soc_dapm_disable_pin(dapm, val ? differential : stereo);
	117	snd_soc_dapm_sync(dapm);
	118	snd_soc_dapm_enable_pin(dapm, val ? stereo : differential);
	119	snd_soc_dapm_sync(dapm);
2b7dbbe0 DG	120
	121	return 1;
	122	}
	123
	124	static const struct snd_kcontrol_new audio_out_mux = {
	125	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	126	.name = "Master Output Mux",
	127	.index = 0,
	128	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	129	.info = output_type_info,
	130	.get = output_type_get,
	131	.put = output_type_put,
	132	.private_value = 1 /* default to stereo */
	133	};
	134
	135	/* Logic for a aic3x as connected on the s6105 ip camera ref design */
f0fba2ad	136	static int s6105_aic3x_init(struct snd_soc_pcm_runtime *rtd)
2b7dbbe0	137	{
f0fba2ad	138	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	139	struct snd_soc_dapm_context *dapm = &codec->dapm;
b92af2b8	140	struct snd_soc_card *card = rtd->card;
2b7dbbe0 DG	141
2b7dbbe0 DG	142	/* not present */
ce6120cc LG	143	snd_soc_dapm_nc_pin(dapm, "MONO_LOUT");
	144	snd_soc_dapm_nc_pin(dapm, "LINE2L");
	145	snd_soc_dapm_nc_pin(dapm, "LINE2R");
2b7dbbe0 DG	146
2b7dbbe0 DG	147	/* not connected */
ce6120cc LG	148	snd_soc_dapm_nc_pin(dapm, "MIC3L"); /* LINE2L on this chip */
	149	snd_soc_dapm_nc_pin(dapm, "MIC3R"); /* LINE2R on this chip */
	150	snd_soc_dapm_nc_pin(dapm, "LLOUT");
	151	snd_soc_dapm_nc_pin(dapm, "RLOUT");
	152	snd_soc_dapm_nc_pin(dapm, "HPRCOM");
2b7dbbe0	153
2b7dbbe0	154	/* must correspond to audio_out_mux.private_value initializer */
b92af2b8	155	snd_soc_dapm_disable_pin(&card->dapm, "Audio Out Differential");
2b7dbbe0	156
b92af2b8	157	snd_ctl_add(card->snd_card, snd_ctl_new1(&audio_out_mux, card));
2b7dbbe0 DG	158
	159	return 0;
	160	}
	161
	162	/* s6105 digital audio interface glue - connects codec <--> CPU */
	163	static struct snd_soc_dai_link s6105_dai = {
	164	.name = "TLV320AIC31",
	165	.stream_name = "AIC31",
f0fba2ad LG	166	.cpu_dai_name = "s6000-i2s",
	167	.codec_dai_name = "tlv320aic3x-hifi",
	168	.platform_name = "s6000-pcm-audio",
	169	.codec_name = "tlv320aic3x-codec.0-001a",
2b7dbbe0 DG	170	.init = s6105_aic3x_init,
	171	.ops = &s6105_ops,
	172	};
	173
	174	/* s6105 audio machine driver */
	175	static struct snd_soc_card snd_soc_card_s6105 = {
	176	.name = "Stretch IP Camera",
23bd1ce4	177	.owner = THIS_MODULE,
2b7dbbe0 DG	178	.dai_link = &s6105_dai,
2b7dbbe0 DG	179	.num_links = 1,
b92af2b8 LPC	180
	181	.dapm_widgets = aic3x_dapm_widgets,
	182	.num_dapm_widgets = ARRAY_SIZE(aic3x_dapm_widgets),
	183	.dapm_routes = audio_map,
	184	.num_dapm_routes = ARRAY_SIZE(audio_map),
2b7dbbe0 DG	185	};
2b7dbbe0 DG	186
74b45231	187	static struct s6000_snd_platform_data s6105_snd_data __initdata = {
2b7dbbe0 DG	188	.wide = 0,
	189	.channel_in = 0,
	190	.channel_out = 1,
	191	.lines_in = 1,
	192	.lines_out = 1,
	193	.same_rate = 1,
	194	};
	195
	196	static struct platform_device *s6105_snd_device;
	197
aa6b904e BD	198	/* temporary i2c device creation until this can be moved into the machine
	199	* support file.
	200	*/
	201	static struct i2c_board_info i2c_device[] = {
	202	{ I2C_BOARD_INFO("tlv320aic33", 0x18), }
	203	};
	204
2b7dbbe0 DG	205	static int __init s6105_init(void)
	206	{
	207	int ret;
	208
aa6b904e BD	209	i2c_register_board_info(0, i2c_device, ARRAY_SIZE(i2c_device));
aa6b904e BD	210
2b7dbbe0 DG	211	s6105_snd_device = platform_device_alloc("soc-audio", -1);
	212	if (!s6105_snd_device)
	213	return -ENOMEM;
	214
f0fba2ad	215	platform_set_drvdata(s6105_snd_device, &snd_soc_card_s6105);
2b7dbbe0 DG	216	platform_device_add_data(s6105_snd_device, &s6105_snd_data,
	217	sizeof(s6105_snd_data));
	218
	219	ret = platform_device_add(s6105_snd_device);
	220	if (ret)
	221	platform_device_put(s6105_snd_device);
	222
	223	return ret;
	224	}
	225
	226	static void __exit s6105_exit(void)
	227	{
	228	platform_device_unregister(s6105_snd_device);
	229	}
	230
	231	module_init(s6105_init);
	232	module_exit(s6105_exit);
	233
	234	MODULE_AUTHOR("Daniel Gloeckner");
	235	MODULE_DESCRIPTION("Stretch s6105 IP camera ASoC driver");
	236	MODULE_LICENSE("GPL");