--- /dev/null
+/*
+ * 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)
+{
+ int i;
+
+ for (i = 0; i < card->num_rtd; i++) {
+ struct snd_soc_pcm_runtime *rtd;
+
+ rtd = card->rtd + i;
+ 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 AIF", NULL, "SoC DMIC"},
+
+ /* CODEC BE connections */
+ { "Left Playback", NULL, "ssp0 Tx"},
+ { "Right Playback", NULL, "ssp0 Tx"},
+ { "ssp0 Tx", NULL, "codec0_out"},
+
+ { "AIF1 Playback", NULL, "ssp1 Tx"},
+ { "ssp1 Tx", NULL, "codec1_out"},
+
+ { "codec0_in", NULL, "ssp1 Rx" },
+ { "ssp1 Rx", NULL, "AIF1 Capture" },
+
+ /* DMIC */
+ { "dmic01_hifi", NULL, "DMIC01 Rx" },
+ { "DMIC01 Rx", NULL, "Capture" },
+ { "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);
+
+ 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_suspend = 1,
+ .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_suspend = 1,
+ .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),
+};
+
+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");
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