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/*
* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
*
* Copyright (c) 2015 MediaTek Inc.
* Author: Koro Chen <koro.chen@mediatek.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 and
* only 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.
*/
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include "../codecs/max98090.h"
static struct snd_soc_jack mt8173_max98090_jack;
static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
{"Speaker", NULL, "SPKL"},
{"Speaker", NULL, "SPKR"},
{"DMICL", NULL, "Int Mic"},
{"Headphone", NULL, "HPL"},
{"Headphone", NULL, "HPR"},
{"Headset Mic", NULL, "MICBIAS"},
{"IN34", NULL, "Headset Mic"},
};
static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int mt8173_max98090_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;
return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
SND_SOC_CLOCK_IN);
}
static struct snd_soc_ops mt8173_max98090_ops = {
.hw_params = mt8173_max98090_hw_params,
};
static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
{
int ret;
struct snd_soc_card *card = runtime->card;
struct snd_soc_codec *codec = runtime->codec;
/* enable jack detection */
ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
&mt8173_max98090_jack, NULL, 0);
if (ret) {
dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
return ret;
}
ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
ARRAY_SIZE(mt8173_max98090_jack_pins),
mt8173_max98090_jack_pins);
if (ret) {
dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
return ret;
}
return max98090_mic_detect(codec, &mt8173_max98090_jack);
}
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link mt8173_max98090_dais[] = {
/* Front End DAI links */
{
.name = "MAX98090 Playback",
.stream_name = "MAX98090 Playback",
.cpu_dai_name = "DL1",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
},
{
.name = "MAX98090 Capture",
.stream_name = "MAX98090 Capture",
.cpu_dai_name = "VUL",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_capture = 1,
},
/* Back End DAI links */
{
.name = "Codec",
.cpu_dai_name = "I2S",
.no_pcm = 1,
.codec_dai_name = "HiFi",
.init = mt8173_max98090_init,
.ops = &mt8173_max98090_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_playback = 1,
.dpcm_capture = 1,
},
};
static struct snd_soc_card mt8173_max98090_card = {
.name = "mt8173-max98090",
.owner = THIS_MODULE,
.dai_link = mt8173_max98090_dais,
.num_links = ARRAY_SIZE(mt8173_max98090_dais),
.controls = mt8173_max98090_controls,
.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
.dapm_widgets = mt8173_max98090_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
.dapm_routes = mt8173_max98090_routes,
.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
};
static int mt8173_max98090_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8173_max98090_card;
struct device_node *codec_node, *platform_node;
int ret, i;
platform_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,platform", 0);
if (!platform_node) {
dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
return -EINVAL;
}
for (i = 0; i < card->num_links; i++) {
if (mt8173_max98090_dais[i].platform_name)
continue;
mt8173_max98090_dais[i].platform_of_node = platform_node;
}
codec_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,audio-codec", 0);
if (!codec_node) {
dev_err(&pdev->dev,
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
for (i = 0; i < card->num_links; i++) {
if (mt8173_max98090_dais[i].codec_name)
continue;
mt8173_max98090_dais[i].codec_of_node = codec_node;
}
card->dev = &pdev->dev;
ret = snd_soc_register_card(card);
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
return ret;
}
static int mt8173_max98090_dev_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static const struct of_device_id mt8173_max98090_dt_match[] = {
{ .compatible = "mediatek,mt8173-max98090", },
{ }
};
MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
static struct platform_driver mt8173_max98090_driver = {
.driver = {
.name = "mt8173-max98090",
.of_match_table = mt8173_max98090_dt_match,
#ifdef CONFIG_PM
.pm = &snd_soc_pm_ops,
#endif
},
.probe = mt8173_max98090_dev_probe,
.remove = mt8173_max98090_dev_remove,
};
module_platform_driver(mt8173_max98090_driver);
/* Module information */
MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mt8173-max98090");
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