/*
* Intel Skylake I2S Machine Driver for NAU88L25+SSM4567
*
* Copyright (C) 2015, Intel Corporation. All rights reserved.
*
* Modified from:
* Intel Skylake I2S Machine Driver for NAU88L25 and SSM4567
*
* Copyright (C) 2015, Intel Corporation. All rights reserved.
*
* 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.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/pcm_params.h>
#include "../../codecs/nau8825.h"
#define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"
#define SKL_SSM_CODEC_DAI "ssm4567-hifi"
static struct snd_soc_jack skylake_headset;
static struct snd_soc_card skylake_audio_card;
static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd;
list_for_each_entry(rtd, &card->rtd_list, list) {
if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI,
strlen(SKL_NUVOTON_CODEC_DAI)))
return rtd->codec_dai;
}
return NULL;
}
static const struct snd_kcontrol_new skylake_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Left Speaker"),
SOC_DAPM_PIN_SWITCH("Right Speaker"),
};
static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct snd_soc_dai *codec_dai;
int ret;
codec_dai = skl_get_codec_dai(card);
if (!codec_dai) {
dev_err(card->dev, "Codec dai not found\n");
return -EIO;
}
if (SND_SOC_DAPM_EVENT_ON(event)) {
ret = snd_soc_dai_set_sysclk(codec_dai,
NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(card->dev, "set sysclk err = %d\n", ret);
return -EIO;
}
} else {
ret = snd_soc_dai_set_sysclk(codec_dai,
NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(card->dev, "set sysclk err = %d\n", ret);
return -EIO;
}
}
return ret;
}
static const struct snd_soc_dapm_widget skylake_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Left Speaker", NULL),
SND_SOC_DAPM_SPK("Right Speaker", NULL),
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
platform_clock_control, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD),
};
static const struct snd_soc_dapm_route skylake_map[] = {
/* HP jack connectors - unknown if we have jack detection */
{"Headphone Jack", NULL, "HPOL"},
{"Headphone Jack", NULL, "HPOR"},
/* speaker */
{"Left Speaker", NULL, "Left OUT"},
{"Right Speaker", NULL, "Right OUT"},
/* other jacks */
{"MIC", NULL, "Headset Mic"},
{"DMic", NULL, "SoC DMIC"},
/* CODEC BE connections */
{ "Left Playback", NULL, "ssp0 Tx"},
{ "Right Playback", NULL, "ssp0 Tx"},
{ "ssp0 Tx", NULL, "codec0_out"},
{ "Playback", NULL, "ssp1 Tx"},
{ "ssp1 Tx", NULL, "codec1_out"},
{ "codec0_in", NULL, "ssp1 Rx" },
{ "ssp1 Rx", NULL, "Capture" },
/* DMIC */
{ "dmic01_hifi", NULL, "DMIC01 Rx" },
{ "DMIC01 Rx", NULL, "DMIC AIF" },
{ "Headphone Jack", NULL, "Platform Clock" },
{ "Headset Mic", NULL, "Platform Clock" },
};
static struct snd_soc_codec_conf ssm4567_codec_conf[] = {
{
.dev_name = "i2c-INT343B:00",
.name_prefix = "Left",
},
{
.dev_name = "i2c-INT343B:01",
.name_prefix = "Right",
},
};
static struct snd_soc_dai_link_component ssm4567_codec_components[] = {
{ /* Left */
.name = "i2c-INT343B:00",
.dai_name = SKL_SSM_CODEC_DAI,
},
{ /* Right */
.name = "i2c-INT343B:01",
.dai_name = SKL_SSM_CODEC_DAI,
},
};
static int skylake_ssm4567_codec_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
/* Slot 1 for left */
ret = snd_soc_dai_set_tdm_slot(rtd->codec_dais[0], 0x01, 0x01, 2, 48);
if (ret < 0)
return ret;
/* Slot 2 for right */
ret = snd_soc_dai_set_tdm_slot(rtd->codec_dais[1], 0x02, 0x02, 2, 48);
if (ret < 0)
return ret;
return ret;
}
static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
struct snd_soc_codec *codec = rtd->codec;
/*
* 4 buttons here map to the google Reference headset
* The use of these buttons can be decided by the user space.
*/
ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
NULL, 0);
if (ret) {
dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
return ret;
}
nau8825_enable_jack_detect(codec, &skylake_headset);
snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
return ret;
}
static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
/* The ADSP will covert the FE rate to 48k, stereo */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
/* set SSP0 to 24 bit */
snd_mask_none(fmt);
snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
static int skylake_nau8825_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;
ret = snd_soc_dai_set_sysclk(codec_dai,
NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
if (ret < 0)
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
return ret;
}
static struct snd_soc_ops skylake_nau8825_ops = {
.hw_params = skylake_nau8825_hw_params,
};
/* skylake digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link skylake_dais[] = {
/* Front End DAI links */
{
.name = "Skl Audio Port",
.stream_name = "Audio",
.cpu_dai_name = "System Pin",
.platform_name = "0000:00:1f.3",
.dynamic = 1,
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.nonatomic = 1,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dpcm_playback = 1,
},
{
.name = "Skl Audio Capture Port",
.stream_name = "Audio Record",
.cpu_dai_name = "System Pin",
.platform_name = "0000:00:1f.3",
.dynamic = 1,
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.nonatomic = 1,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dpcm_capture = 1,
},
{
.name = "Skl Audio Reference cap",
.stream_name = "refcap",
.cpu_dai_name = "Reference Pin",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.platform_name = "0000:00:1f.3",
.init = NULL,
.dpcm_capture = 1,
.ignore_suspend = 1,
.nonatomic = 1,
.dynamic = 1,
},
/* Back End DAI links */
{
/* SSP0 - Codec */
.name = "SSP0-Codec",
.be_id = 0,
.cpu_dai_name = "SSP0 Pin",
.platform_name = "0000:00:1f.3",
.no_pcm = 1,
.codecs = ssm4567_codec_components,
.num_codecs = ARRAY_SIZE(ssm4567_codec_components),
.dai_fmt = SND_SOC_DAIFMT_DSP_A |
SND_SOC_DAIFMT_IB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.init = skylake_ssm4567_codec_init,
.ignore_pmdown_time = 1,
.be_hw_params_fixup = skylake_ssp_fixup,
.dpcm_playback = 1,
},
{
/* SSP1 - Codec */
.name = "SSP1-Codec",
.be_id = 0,
.cpu_dai_name = "SSP1 Pin",
.platform_name = "0000:00:1f.3",
.no_pcm = 1,
.codec_name = "i2c-10508825:00",
.codec_dai_name = SKL_NUVOTON_CODEC_DAI,
.init = skylake_nau8825_codec_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.ignore_pmdown_time = 1,
.be_hw_params_fixup = skylake_ssp_fixup,
.ops = &skylake_nau8825_ops,
.dpcm_playback = 1,
.dpcm_capture = 1,
},
{
.name = "dmic01",
.be_id = 1,
.cpu_dai_name = "DMIC01 Pin",
.codec_name = "dmic-codec",
.codec_dai_name = "dmic-hifi",
.platform_name = "0000:00:1f.3",
.ignore_suspend = 1,
.dpcm_capture = 1,
.no_pcm = 1,
},
};
/* skylake audio machine driver for SPT + NAU88L25 */
static struct snd_soc_card skylake_audio_card = {
.name = "sklnau8825adi",
.owner = THIS_MODULE,
.dai_link = skylake_dais,
.num_links = ARRAY_SIZE(skylake_dais),
.controls = skylake_controls,
.num_controls = ARRAY_SIZE(skylake_controls),
.dapm_widgets = skylake_widgets,
.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
.dapm_routes = skylake_map,
.num_dapm_routes = ARRAY_SIZE(skylake_map),
.codec_conf = ssm4567_codec_conf,
.num_configs = ARRAY_SIZE(ssm4567_codec_conf),
.fully_routed = true,
};
static int skylake_audio_probe(struct platform_device *pdev)
{
skylake_audio_card.dev = &pdev->dev;
return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
}
static struct platform_driver skylake_audio = {
.probe = skylake_audio_probe,
.driver = {
.name = "skl_nau88l25_ssm4567_i2s",
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(skylake_audio)
/* Module information */
MODULE_AUTHOR("Conrad Cooke <conrad.cooke@intel.com>");
MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>");
MODULE_AUTHOR("Naveen M <naveen.m@intel.com>");
MODULE_AUTHOR("Sathya Prakash M R <sathya.prakash.m.r@intel.com>");
MODULE_AUTHOR("Yong Zhi <yong.zhi@intel.com>");
MODULE_DESCRIPTION("Intel Audio Machine driver for SKL with NAU88L25 and SSM4567 in I2S Mode");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:skl_nau88l25_ssm4567_i2s");
