--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2021 Intel Corporation.
+
+/*
+ * Intel SOF Machine Driver with es8336 Codec
+ */
+
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "hda_dsp_common.h"
+
+#define SOF_ES8336_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0))
+#define SOF_ES8336_SSP_CODEC_MASK (GENMASK(3, 0))
+
+#define SOF_ES8336_TGL_GPIO_QUIRK BIT(4)
+#define SOF_ES8336_ENABLE_DMIC BIT(5)
+
+static unsigned long quirk;
+
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, int, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
+struct sof_es8336_private {
+ struct device *codec_dev;
+ struct gpio_desc *gpio_pa;
+ struct snd_soc_jack jack;
+ struct list_head hdmi_pcm_list;
+ bool speaker_en;
+};
+
+struct sof_hdmi_pcm {
+ struct list_head head;
+ struct snd_soc_dai *codec_dai;
+ int device;
+};
+
+static const struct acpi_gpio_params pa_enable_gpio = { 0, 0, true };
+static const struct acpi_gpio_mapping acpi_es8336_gpios[] = {
+ { "pa-enable-gpios", &pa_enable_gpio, 1 },
+ { }
+};
+
+static const struct acpi_gpio_params quirk_pa_enable_gpio = { 1, 0, true };
+static const struct acpi_gpio_mapping quirk_acpi_es8336_gpios[] = {
+ { "pa-enable-gpios", &quirk_pa_enable_gpio, 1 },
+ { }
+};
+
+static const struct acpi_gpio_mapping *gpio_mapping = acpi_es8336_gpios;
+
+static void log_quirks(struct device *dev)
+{
+ dev_info(dev, "quirk SSP%ld", SOF_ES8336_SSP_CODEC(quirk));
+}
+
+static int sof_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ priv->speaker_en = false;
+ else
+ priv->speaker_en = true;
+
+ gpiod_set_value_cansleep(priv->gpio_pa, priv->speaker_en);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget sof_es8316_widgets[] = {
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Internal Mic", NULL),
+
+ SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
+ sof_es8316_speaker_power_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
+};
+
+static const struct snd_soc_dapm_widget dmic_widgets[] = {
+ SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route sof_es8316_audio_map[] = {
+ {"Headphone", NULL, "HPOL"},
+ {"Headphone", NULL, "HPOR"},
+
+ /*
+ * There is no separate speaker output instead the speakers are muxed to
+ * the HP outputs. The mux is controlled by the "Speaker Power" supply.
+ */
+ {"Speaker", NULL, "HPOL"},
+ {"Speaker", NULL, "HPOR"},
+ {"Speaker", NULL, "Speaker Power"},
+};
+
+static const struct snd_soc_dapm_route sof_es8316_intmic_in1_map[] = {
+ {"MIC1", NULL, "Internal Mic"},
+ {"MIC2", NULL, "Headset Mic"},
+};
+
+static const struct snd_soc_dapm_route dmic_map[] = {
+ /* digital mics */
+ {"DMic", NULL, "SoC DMIC"},
+};
+
+static const struct snd_kcontrol_new sof_es8316_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Internal Mic"),
+};
+
+static struct snd_soc_jack_pin sof_es8316_jack_pins[] = {
+ {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int dmic_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_card *card = runtime->card;
+ int ret;
+
+ ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
+ ARRAY_SIZE(dmic_widgets));
+ if (ret) {
+ dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
+ ARRAY_SIZE(dmic_map));
+ if (ret)
+ dev_err(card->dev, "DMic map addition failed: %d\n", ret);
+
+ return ret;
+}
+
+static int sof_hdmi_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct sof_es8336_private *priv = snd_soc_card_get_drvdata(runtime->card);
+ struct snd_soc_dai *dai = asoc_rtd_to_codec(runtime, 0);
+ struct sof_hdmi_pcm *pcm;
+
+ pcm = devm_kzalloc(runtime->card->dev, sizeof(*pcm), GFP_KERNEL);
+ if (!pcm)
+ return -ENOMEM;
+
+ /* dai_link id is 1:1 mapped to the PCM device */
+ pcm->device = runtime->dai_link->id;
+ pcm->codec_dai = dai;
+
+ list_add_tail(&pcm->head, &priv->hdmi_pcm_list);
+
+ return 0;
+}
+
+static int sof_es8316_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_component *codec = asoc_rtd_to_codec(runtime, 0)->component;
+ struct snd_soc_card *card = runtime->card;
+ struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+ const struct snd_soc_dapm_route *custom_map;
+ int num_routes;
+ int ret;
+
+ card->dapm.idle_bias_off = true;
+
+ custom_map = sof_es8316_intmic_in1_map;
+ num_routes = ARRAY_SIZE(sof_es8316_intmic_in1_map);
+
+ ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_card_jack_new(card, "Headset",
+ SND_JACK_HEADSET | SND_JACK_BTN_0,
+ &priv->jack, sof_es8316_jack_pins,
+ ARRAY_SIZE(sof_es8316_jack_pins));
+ if (ret) {
+ dev_err(card->dev, "jack creation failed %d\n", ret);
+ return ret;
+ }
+
+ snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+
+ snd_soc_component_set_jack(codec, &priv->jack, NULL);
+
+ return 0;
+}
+
+static void sof_es8316_exit(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+ snd_soc_component_set_jack(component, NULL, NULL);
+}
+
+static int sof_es8336_quirk_cb(const struct dmi_system_id *id)
+{
+ quirk = (unsigned long)id->driver_data;
+
+ if (quirk & SOF_ES8336_TGL_GPIO_QUIRK)
+ gpio_mapping = quirk_acpi_es8336_gpios;
+
+ return 1;
+}
+
+static const struct dmi_system_id sof_es8336_quirk_table[] = {
+ {
+ .callback = sof_es8336_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CHUWI Innovation And Technology"),
+ DMI_MATCH(DMI_BOARD_NAME, "Hi10 X"),
+ },
+ .driver_data = (void *)SOF_ES8336_SSP_CODEC(2)
+ },
+ {
+ .callback = sof_es8336_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IP3 tech"),
+ DMI_MATCH(DMI_BOARD_NAME, "WN1"),
+ },
+ .driver_data = (void *)(SOF_ES8336_SSP_CODEC(0) |
+ SOF_ES8336_TGL_GPIO_QUIRK |
+ SOF_ES8336_ENABLE_DMIC)
+ },
+ {}
+};
+
+static int sof_es8336_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+ const int sysclk = 19200000;
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 1, sysclk, SND_SOC_CLOCK_OUT);
+ if (ret < 0) {
+ dev_err(rtd->dev, "%s, Failed to set ES8336 SYSCLK: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops sof_es8336_ops = {
+ .hw_params = sof_es8336_hw_params,
+};
+
+static struct snd_soc_dai_link_component platform_component[] = {
+ {
+ /* name might be overridden during probe */
+ .name = "0000:00:1f.3"
+ }
+};
+
+SND_SOC_DAILINK_DEF(ssp1_codec,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8336:00", "ES8316 HiFi")));
+
+static struct snd_soc_dai_link_component dmic_component[] = {
+ {
+ .name = "dmic-codec",
+ .dai_name = "dmic-hifi",
+ }
+};
+
+static int sof_es8336_late_probe(struct snd_soc_card *card)
+{
+ struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+ struct sof_hdmi_pcm *pcm;
+
+ if (list_empty(&priv->hdmi_pcm_list))
+ return -ENOENT;
+
+ pcm = list_first_entry(&priv->hdmi_pcm_list, struct sof_hdmi_pcm, head);
+
+ return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);
+}
+
+/* SoC card */
+static struct snd_soc_card sof_es8336_card = {
+ .name = "essx8336", /* sof- prefix added automatically */
+ .owner = THIS_MODULE,
+ .dapm_widgets = sof_es8316_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(sof_es8316_widgets),
+ .dapm_routes = sof_es8316_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(sof_es8316_audio_map),
+ .controls = sof_es8316_controls,
+ .num_controls = ARRAY_SIZE(sof_es8316_controls),
+ .fully_routed = true,
+ .late_probe = sof_es8336_late_probe,
+ .num_links = 1,
+};
+
+static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
+ int ssp_codec,
+ int dmic_be_num,
+ int hdmi_num)
+{
+ struct snd_soc_dai_link_component *cpus;
+ struct snd_soc_dai_link *links;
+ struct snd_soc_dai_link_component *idisp_components;
+ int hdmi_id_offset = 0;
+ int id = 0;
+ int i;
+
+ links = devm_kcalloc(dev, sof_es8336_card.num_links,
+ sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+ cpus = devm_kcalloc(dev, sof_es8336_card.num_links,
+ sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
+ if (!links || !cpus)
+ goto devm_err;
+
+ /* codec SSP */
+ links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+ "SSP%d-Codec", ssp_codec);
+ if (!links[id].name)
+ goto devm_err;
+
+ links[id].id = id;
+ links[id].codecs = ssp1_codec;
+ links[id].num_codecs = ARRAY_SIZE(ssp1_codec);
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].init = sof_es8316_init;
+ links[id].exit = sof_es8316_exit;
+ links[id].ops = &sof_es8336_ops;
+ links[id].nonatomic = true;
+ links[id].dpcm_playback = 1;
+ links[id].dpcm_capture = 1;
+ links[id].no_pcm = 1;
+ links[id].cpus = &cpus[id];
+ links[id].num_cpus = 1;
+
+ links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "SSP%d Pin",
+ ssp_codec);
+ if (!links[id].cpus->dai_name)
+ goto devm_err;
+
+ id++;
+
+ /* dmic */
+ if (dmic_be_num > 0) {
+ /* at least we have dmic01 */
+ links[id].name = "dmic01";
+ links[id].cpus = &cpus[id];
+ links[id].cpus->dai_name = "DMIC01 Pin";
+ links[id].init = dmic_init;
+ if (dmic_be_num > 1) {
+ /* set up 2 BE links at most */
+ links[id + 1].name = "dmic16k";
+ links[id + 1].cpus = &cpus[id + 1];
+ links[id + 1].cpus->dai_name = "DMIC16k Pin";
+ dmic_be_num = 2;
+ }
+ } else {
+ /* HDMI dai link starts at 3 according to current topology settings */
+ hdmi_id_offset = 2;
+ }
+
+ for (i = 0; i < dmic_be_num; i++) {
+ links[id].id = id;
+ links[id].num_cpus = 1;
+ links[id].codecs = dmic_component;
+ links[id].num_codecs = ARRAY_SIZE(dmic_component);
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].ignore_suspend = 1;
+ links[id].dpcm_capture = 1;
+ links[id].no_pcm = 1;
+
+ id++;
+ }
+
+ /* HDMI */
+ if (hdmi_num > 0) {
+ idisp_components = devm_kzalloc(dev,
+ sizeof(struct snd_soc_dai_link_component) *
+ hdmi_num, GFP_KERNEL);
+ if (!idisp_components)
+ goto devm_err;
+ }
+
+ for (i = 1; i <= hdmi_num; i++) {
+ links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+ "iDisp%d", i);
+ if (!links[id].name)
+ goto devm_err;
+
+ links[id].id = id + hdmi_id_offset;
+ links[id].cpus = &cpus[id];
+ links[id].num_cpus = 1;
+ links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "iDisp%d Pin", i);
+ if (!links[id].cpus->dai_name)
+ goto devm_err;
+
+ idisp_components[i - 1].name = "ehdaudio0D2";
+ idisp_components[i - 1].dai_name = devm_kasprintf(dev,
+ GFP_KERNEL,
+ "intel-hdmi-hifi%d",
+ i);
+ if (!idisp_components[i - 1].dai_name)
+ goto devm_err;
+
+ links[id].codecs = &idisp_components[i - 1];
+ links[id].num_codecs = 1;
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].init = sof_hdmi_init;
+ links[id].dpcm_playback = 1;
+ links[id].no_pcm = 1;
+
+ id++;
+ }
+
+ return links;
+
+devm_err:
+ return NULL;
+}
+
+ /* i2c-<HID>:00 with HID being 8 chars */
+static char codec_name[SND_ACPI_I2C_ID_LEN];
+
+static int sof_es8336_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct snd_soc_card *card;
+ struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
+ struct sof_es8336_private *priv;
+ struct acpi_device *adev;
+ struct snd_soc_dai_link *dai_links;
+ struct device *codec_dev;
+ int dmic_be_num = 0;
+ int hdmi_num = 3;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ card = &sof_es8336_card;
+ card->dev = dev;
+
+ if (!dmi_check_system(sof_es8336_quirk_table))
+ quirk = SOF_ES8336_SSP_CODEC(2);
+
+ if (quirk & SOF_ES8336_ENABLE_DMIC)
+ dmic_be_num = 2;
+
+ if (quirk_override != -1) {
+ dev_info(dev, "Overriding quirk 0x%lx => 0x%x\n",
+ quirk, quirk_override);
+ quirk = quirk_override;
+ }
+ log_quirks(dev);
+
+ sof_es8336_card.num_links += dmic_be_num + hdmi_num;
+ dai_links = sof_card_dai_links_create(dev,
+ SOF_ES8336_SSP_CODEC(quirk),
+ dmic_be_num, hdmi_num);
+ if (!dai_links)
+ return -ENOMEM;
+
+ sof_es8336_card.dai_link = dai_links;
+
+ /* fixup codec name based on HID */
+ adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+ if (adev) {
+ snprintf(codec_name, sizeof(codec_name),
+ "i2c-%s", acpi_dev_name(adev));
+ put_device(&adev->dev);
+ dai_links[0].codecs->name = codec_name;
+ }
+
+ ret = snd_soc_fixup_dai_links_platform_name(&sof_es8336_card,
+ mach->mach_params.platform);
+ if (ret)
+ return ret;
+
+ /* get speaker enable GPIO */
+ codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name);
+ if (!codec_dev)
+ return -EPROBE_DEFER;
+
+ ret = devm_acpi_dev_add_driver_gpios(codec_dev, gpio_mapping);
+ if (ret)
+ dev_warn(codec_dev, "unable to add GPIO mapping table\n");
+
+ priv->gpio_pa = gpiod_get(codec_dev, "pa-enable", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->gpio_pa)) {
+ ret = PTR_ERR(priv->gpio_pa);
+ dev_err(codec_dev, "%s, could not get pa-enable: %d\n",
+ __func__, ret);
+ goto err;
+ }
+
+ priv->codec_dev = codec_dev;
+ INIT_LIST_HEAD(&priv->hdmi_pcm_list);
+
+ snd_soc_card_set_drvdata(card, priv);
+
+ ret = devm_snd_soc_register_card(dev, card);
+ if (ret) {
+ gpiod_put(priv->gpio_pa);
+ dev_err(dev, "snd_soc_register_card failed: %d\n", ret);
+ goto err;
+ }
+ platform_set_drvdata(pdev, &sof_es8336_card);
+ return 0;
+
+err:
+ put_device(codec_dev);
+ return ret;
+}
+
+static int sof_es8336_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+
+ gpiod_put(priv->gpio_pa);
+ put_device(priv->codec_dev);
+
+ return 0;
+}
+
+static struct platform_driver sof_es8336_driver = {
+ .driver = {
+ .name = "sof-essx8336",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = sof_es8336_probe,
+ .remove = sof_es8336_remove,
+};
+module_platform_driver(sof_es8336_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) SOF + ES8336 Machine driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sof-essx8336");
+MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
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