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/*
* Lowland audio support
*
* Copyright 2011 Wolfson Microelectronics
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include "../codecs/wm5100.h"
#include "../codecs/wm9081.h"
#define MCLK1_RATE (44100 * 512)
#define CLKOUT_RATE (44100 * 256)
static int lowland_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 *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
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)
return ret;
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)
return ret;
return 0;
}
static struct snd_soc_ops lowland_ops = {
.hw_params = lowland_hw_params,
};
static struct snd_soc_jack lowland_headset;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin lowland_headset_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
int ret;
ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_SYSCLK,
WM5100_CLKSRC_MCLK1, MCLK1_RATE,
SND_SOC_CLOCK_IN);
if (ret < 0) {
pr_err("Failed to set SYSCLK clock source: %d\n", ret);
return ret;
}
/* Clock OPCLK, used by the other audio components. */
ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_OPCLK, 0,
CLKOUT_RATE, 0);
if (ret < 0) {
pr_err("Failed to set OPCLK rate: %d\n", ret);
return ret;
}
ret = snd_soc_jack_new(codec, "Headset",
SND_JACK_LINEOUT | SND_JACK_HEADSET |
SND_JACK_BTN_0,
&lowland_headset);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&lowland_headset,
ARRAY_SIZE(lowland_headset_pins),
lowland_headset_pins);
if (ret)
return ret;
wm5100_detect(codec, &lowland_headset);
return 0;
}
static struct snd_soc_dai_link lowland_dai[] = {
{
.name = "CPU",
.stream_name = "CPU",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm5100-aif1",
.platform_name = "samsung-audio",
.codec_name = "wm5100.1-001a",
.ops = &lowland_ops,
.init = lowland_wm5100_init,
},
{
.name = "Baseband",
.stream_name = "Baseband",
.cpu_dai_name = "wm5100-aif2",
.codec_dai_name = "wm1250-ev1",
.codec_name = "wm1250-ev1.1-0027",
.ops = &lowland_ops,
.ignore_suspend = 1,
},
};
static int lowland_wm9081_init(struct snd_soc_dapm_context *dapm)
{
snd_soc_dapm_nc_pin(dapm, "LINEOUT");
/* At any time the WM9081 is active it will have this clock */
return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 0,
CLKOUT_RATE, 0);
}
static struct snd_soc_aux_dev lowland_aux_dev[] = {
{
.name = "wm9081",
.codec_name = "wm9081.1-006c",
.init = lowland_wm9081_init,
},
};
static struct snd_soc_codec_conf lowland_codec_conf[] = {
{
.dev_name = "wm9081.1-006c",
.name_prefix = "Sub",
},
};
static const struct snd_kcontrol_new controls[] = {
SOC_DAPM_PIN_SWITCH("Main Speaker"),
SOC_DAPM_PIN_SWITCH("Main DMIC"),
SOC_DAPM_PIN_SWITCH("Main AMIC"),
SOC_DAPM_PIN_SWITCH("WM1250 Input"),
SOC_DAPM_PIN_SWITCH("WM1250 Output"),
SOC_DAPM_PIN_SWITCH("Headphone"),
};
static struct snd_soc_dapm_widget widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Main Speaker", NULL),
SND_SOC_DAPM_MIC("Main AMIC", NULL),
SND_SOC_DAPM_MIC("Main DMIC", NULL),
};
static struct snd_soc_dapm_route audio_paths[] = {
{ "Sub IN1", NULL, "HPOUT2L" },
{ "Sub IN2", NULL, "HPOUT2R" },
{ "Main Speaker", NULL, "Sub SPKN" },
{ "Main Speaker", NULL, "Sub SPKP" },
{ "Main Speaker", NULL, "SPKDAT1" },
};
static struct snd_soc_card lowland = {
.name = "Lowland",
.owner = THIS_MODULE,
.dai_link = lowland_dai,
.num_links = ARRAY_SIZE(lowland_dai),
.aux_dev = lowland_aux_dev,
.num_aux_devs = ARRAY_SIZE(lowland_aux_dev),
.codec_conf = lowland_codec_conf,
.num_configs = ARRAY_SIZE(lowland_codec_conf),
.controls = controls,
.num_controls = ARRAY_SIZE(controls),
.dapm_widgets = widgets,
.num_dapm_widgets = ARRAY_SIZE(widgets),
.dapm_routes = audio_paths,
.num_dapm_routes = ARRAY_SIZE(audio_paths),
};
static __devinit int lowland_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &lowland;
int ret;
card->dev = &pdev->dev;
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 __devexit lowland_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver lowland_driver = {
.driver = {
.name = "lowland",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = lowland_probe,
.remove = __devexit_p(lowland_remove),
};
module_platform_driver(lowland_driver);
MODULE_DESCRIPTION("Lowland audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:lowland");
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