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alistair23-linux/sound/soc/omap/omap-twl4030.c
Lars-Peter Clausen 09ae3aaf3c ASoC: omap: Use common DAI DMA data 
Use the common DAI DMA data struct for omap, this allows us to use the common
helper function to configure the DMA slave config based on the DAI DMA data.

For omap-dmic and omap-mcpdm also move the DMA data from a global variable to
the driver state struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03 18:12:58 +01:00

388 lines
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/*
* omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec
*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
* All rights reserved.
*
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*
* This driver replaces the following machine drivers:
* omap3beagle (Author: Steve Sakoman <steve@sakoman.com>)
* omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)
* overo (Author: Steve Sakoman <steve@sakoman.com>)
* igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)
* zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)
* sdp3430 (Author: Misael Lopez Cruz <misael.lopez@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/platform_device.h>
#include <linux/platform_data/omap-twl4030.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "omap-mcbsp.h"
struct omap_twl4030 {
int jack_detect; /* board can detect jack events */
struct snd_soc_jack hs_jack;
};
static int omap_twl4030_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;
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_card *card = codec->card;
unsigned int fmt;
int ret;
switch (params_channels(params)) {
case 2: /* Stereo I2S mode */
fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
break;
case 4: /* Four channel TDM mode */
fmt = SND_SOC_DAIFMT_DSP_A |
SND_SOC_DAIFMT_IB_NF |
SND_SOC_DAIFMT_CBM_CFM;
break;
default:
return -EINVAL;
}
/* Set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
dev_err(card->dev, "can't set codec DAI configuration\n");
return ret;
}
/* Set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0) {
dev_err(card->dev, "can't set cpu DAI configuration\n");
return ret;
}
return 0;
}
static struct snd_soc_ops omap_twl4030_ops = {
.hw_params = omap_twl4030_hw_params,
};
static const struct snd_soc_dapm_widget dapm_widgets[] = {
SND_SOC_DAPM_SPK("Earpiece Spk", NULL),
SND_SOC_DAPM_SPK("Handsfree Spk", NULL),
SND_SOC_DAPM_HP("Headset Stereophone", NULL),
SND_SOC_DAPM_SPK("Ext Spk", NULL),
SND_SOC_DAPM_SPK("Carkit Spk", NULL),
SND_SOC_DAPM_MIC("Main Mic", NULL),
SND_SOC_DAPM_MIC("Sub Mic", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Carkit Mic", NULL),
SND_SOC_DAPM_MIC("Digital0 Mic", NULL),
SND_SOC_DAPM_MIC("Digital1 Mic", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
static const struct snd_soc_dapm_route audio_map[] = {
/* Headset Stereophone: HSOL, HSOR */
{"Headset Stereophone", NULL, "HSOL"},
{"Headset Stereophone", NULL, "HSOR"},
/* External Speakers: HFL, HFR */
{"Handsfree Spk", NULL, "HFL"},
{"Handsfree Spk", NULL, "HFR"},
/* External Speakers: PredrivL, PredrivR */
{"Ext Spk", NULL, "PREDRIVEL"},
{"Ext Spk", NULL, "PREDRIVER"},
/* Carkit speakers: CARKITL, CARKITR */
{"Carkit Spk", NULL, "CARKITL"},
{"Carkit Spk", NULL, "CARKITR"},
/* Earpiece */
{"Earpiece Spk", NULL, "EARPIECE"},
/* External Mics: MAINMIC, SUBMIC with bias */
{"MAINMIC", NULL, "Main Mic"},
{"Main Mic", NULL, "Mic Bias 1"},
{"SUBMIC", NULL, "Sub Mic"},
{"Sub Mic", NULL, "Mic Bias 2"},
/* Headset Mic: HSMIC with bias */
{"HSMIC", NULL, "Headset Mic"},
{"Headset Mic", NULL, "Headset Mic Bias"},
/* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */
{"DIGIMIC0", NULL, "Digital0 Mic"},
{"Digital0 Mic", NULL, "Mic Bias 1"},
{"DIGIMIC1", NULL, "Digital1 Mic"},
{"Digital1 Mic", NULL, "Mic Bias 2"},
/* Carkit In: CARKITMIC */
{"CARKITMIC", NULL, "Carkit Mic"},
/* Aux In: AUXL, AUXR */
{"AUXL", NULL, "Line In"},
{"AUXR", NULL, "Line In"},
};
/* 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[] = {
{
.name = "hsdet-gpio",
.report = SND_JACK_HEADSET,
.debounce_time = 200,
},
};
static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm,
int connected, char *pin)
{
if (!connected)
snd_soc_dapm_disable_pin(dapm, pin);
}
static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_card *card = codec->card;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev);
struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
int ret = 0;
/* Headset jack detection only if it is supported */
if (priv->jack_detect > 0) {
hs_jack_gpios[0].gpio = priv->jack_detect;
ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
&priv->hs_jack);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&priv->hs_jack,
ARRAY_SIZE(hs_jack_pins),
hs_jack_pins);
if (ret)
return ret;
ret = snd_soc_jack_add_gpios(&priv->hs_jack,
ARRAY_SIZE(hs_jack_gpios),
hs_jack_gpios);
if (ret)
return ret;
}
/*
* NULL pdata means we booted with DT. In this case the routing is
* provided and the card is fully routed, no need to mark pins.
*/
if (!pdata || !pdata->custom_routing)
return ret;
/* Disable not connected paths if not used */
twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk");
twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk");
twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk");
twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk");
twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic");
twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic");
twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic");
twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic");
twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic");
twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In");
return ret;
}
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link omap_twl4030_dai_links[] = {
{
.name = "TWL4030 HiFi",
.stream_name = "TWL4030 HiFi",
.cpu_dai_name = "omap-mcbsp.2",
.codec_dai_name = "twl4030-hifi",
.platform_name = "omap-pcm-audio",
.codec_name = "twl4030-codec",
.init = omap_twl4030_init,
.ops = &omap_twl4030_ops,
},
{
.name = "TWL4030 Voice",
.stream_name = "TWL4030 Voice",
.cpu_dai_name = "omap-mcbsp.3",
.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,
},
};
/* Audio machine driver */
static struct snd_soc_card omap_twl4030_card = {
.owner = THIS_MODULE,
.dai_link = omap_twl4030_dai_links,
.num_links = ARRAY_SIZE(omap_twl4030_dai_links),
.dapm_widgets = dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
.dapm_routes = audio_map,
.num_dapm_routes = ARRAY_SIZE(audio_map),
};
static int omap_twl4030_probe(struct platform_device *pdev)
{
struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);
struct device_node *node = pdev->dev.of_node;
struct snd_soc_card *card = &omap_twl4030_card;
struct omap_twl4030 *priv;
int ret = 0;
card->dev = &pdev->dev;
priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
if (node) {
struct device_node *dai_node;
struct property *prop;
if (snd_soc_of_parse_card_name(card, "ti,model")) {
dev_err(&pdev->dev, "Card name is not provided\n");
return -ENODEV;
}
dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
if (!dai_node) {
dev_err(&pdev->dev, "McBSP node is not provided\n");
return -EINVAL;
}
omap_twl4030_dai_links[0].cpu_dai_name = NULL;
omap_twl4030_dai_links[0].cpu_of_node = dai_node;
dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0);
if (!dai_node) {
card->num_links = 1;
} else {
omap_twl4030_dai_links[1].cpu_dai_name = NULL;
omap_twl4030_dai_links[1].cpu_of_node = dai_node;
}
priv->jack_detect = of_get_named_gpio(node,
"ti,jack-det-gpio", 0);
/* Optional: audio routing can be provided */
prop = of_find_property(node, "ti,audio-routing", NULL);
if (prop) {
ret = snd_soc_of_parse_audio_routing(card,
"ti,audio-routing");
if (ret)
return ret;
card->fully_routed = 1;
}
} else if (pdata) {
if (pdata->card_name) {
card->name = pdata->card_name;
} else {
dev_err(&pdev->dev, "Card name is not provided\n");
return -ENODEV;
}
if (!pdata->voice_connected)
card->num_links = 1;
priv->jack_detect = pdata->jack_detect;
} else {
dev_err(&pdev->dev, "Missing pdata\n");
return -ENODEV;
}
snd_soc_card_set_drvdata(card, priv);
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
return 0;
}
static int omap_twl4030_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
if (priv->jack_detect > 0)
snd_soc_jack_free_gpios(&priv->hs_jack,
ARRAY_SIZE(hs_jack_gpios),
hs_jack_gpios);
snd_soc_unregister_card(card);
return 0;
}
static const struct of_device_id omap_twl4030_of_match[] = {
{.compatible = "ti,omap-twl4030", },
{ },
};
MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);
static struct platform_driver omap_twl4030_driver = {
.driver = {
.name = "omap-twl4030",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
.of_match_table = omap_twl4030_of_match,
},
.probe = omap_twl4030_probe,
.remove = omap_twl4030_remove,
};
module_platform_driver(omap_twl4030_driver);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:omap-twl4030");
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