--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2023 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/processor.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 <asm/intel-family.h>
+
+#define ES8336_CODEC_DAI "ES8316 HiFi"
+
+struct avs_card_drvdata {
+ struct snd_soc_jack jack;
+ struct gpio_desc *gpiod;
+};
+
+static const struct acpi_gpio_params enable_gpio = { 0, 0, true };
+
+static const struct acpi_gpio_mapping speaker_gpios[] = {
+ { "speaker-enable-gpios", &enable_gpio, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO },
+ { }
+};
+
+static int avs_es8336_speaker_power_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct avs_card_drvdata *data;
+ bool speaker_en;
+
+ data = snd_soc_card_get_drvdata(card);
+ /* As enable_gpio has active_low=true, logic is inverted. */
+ speaker_en = !SND_SOC_DAPM_EVENT_ON(event);
+
+ gpiod_set_value_cansleep(data->gpiod, speaker_en);
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget card_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,
+ avs_es8336_speaker_power_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
+};
+
+static const struct snd_soc_dapm_route card_routes[] = {
+ {"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" widget.
+ */
+ {"Speaker", NULL, "HPOL"},
+ {"Speaker", NULL, "HPOR"},
+ {"Speaker", NULL, "Speaker Power"},
+
+ /* Mic route map */
+ {"MIC1", NULL, "Internal Mic"},
+ {"MIC2", NULL, "Headset Mic"},
+};
+
+static const struct snd_kcontrol_new card_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 card_headset_pins[] = {
+ {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int avs_es8336_codec_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
+ struct snd_soc_component *component = codec_dai->component;
+ struct snd_soc_card *card = runtime->card;
+ struct snd_soc_jack_pin *pins;
+ struct avs_card_drvdata *data;
+ struct gpio_desc *gpiod;
+ int num_pins, ret;
+
+ data = snd_soc_card_get_drvdata(card);
+ num_pins = ARRAY_SIZE(card_headset_pins);
+
+ pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
+ if (!pins)
+ return -ENOMEM;
+
+ ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0,
+ &data->jack, pins, num_pins);
+ if (ret)
+ return ret;
+
+ ret = devm_acpi_dev_add_driver_gpios(codec_dai->dev, speaker_gpios);
+ if (ret)
+ dev_warn(codec_dai->dev, "Unable to add GPIO mapping table\n");
+
+ gpiod = gpiod_get_optional(codec_dai->dev, "speaker-enable", GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod))
+ return dev_err_probe(codec_dai->dev, PTR_ERR(gpiod), "Get gpiod failed: %ld\n",
+ PTR_ERR(gpiod));
+
+ data->gpiod = gpiod;
+ snd_jack_set_key(data->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+ snd_soc_component_set_jack(component, &data->jack, NULL);
+
+ card->dapm.idle_bias_off = true;
+
+ return 0;
+}
+
+static void avs_es8336_codec_exit(struct snd_soc_pcm_runtime *runtime)
+{
+ struct avs_card_drvdata *data = snd_soc_card_get_drvdata(runtime->card);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
+
+ snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
+ gpiod_put(data->gpiod);
+}
+
+static int avs_es8336_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
+ int clk_freq;
+ int ret;
+
+ switch (boot_cpu_data.x86_model) {
+ case INTEL_FAM6_KABYLAKE_L:
+ case INTEL_FAM6_KABYLAKE:
+ clk_freq = 24000000;
+ break;
+ default:
+ clk_freq = 19200000;
+ break;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 1, clk_freq, SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret);
+
+ return ret;
+}
+
+static const struct snd_soc_ops avs_es8336_ops = {
+ .hw_params = avs_es8336_hw_params,
+};
+
+static int avs_es8336_be_fixup(struct snd_soc_pcm_runtime *runtime,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_interval *rate, *channels;
+ struct snd_mask *fmt;
+
+ rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+ /* The ADSP will convert the FE rate to 48k, stereo */
+ rate->min = rate->max = 48000;
+ channels->min = channels->max = 2;
+
+ /* set SSPN to 24 bit */
+ snd_mask_none(fmt);
+ snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_3LE);
+
+ return 0;
+}
+static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
+ struct snd_soc_dai_link **dai_link)
+{
+ struct snd_soc_dai_link_component *platform;
+ struct snd_soc_dai_link *dl;
+
+ dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
+ platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
+ if (!dl || !platform)
+ return -ENOMEM;
+
+ platform->name = platform_name;
+
+ dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
+ dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
+ dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
+ if (!dl->name || !dl->cpus || !dl->codecs)
+ return -ENOMEM;
+
+ dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
+ dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-ESSX8336:00");
+ dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, ES8336_CODEC_DAI);
+ if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
+ return -ENOMEM;
+
+ dl->num_cpus = 1;
+ dl->num_codecs = 1;
+ dl->platforms = platform;
+ dl->num_platforms = 1;
+ dl->id = 0;
+ dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
+ dl->init = avs_es8336_codec_init;
+ dl->exit = avs_es8336_codec_exit;
+ dl->be_hw_params_fixup = avs_es8336_be_fixup;
+ dl->ops = &avs_es8336_ops;
+ dl->nonatomic = 1;
+ dl->no_pcm = 1;
+ dl->dpcm_capture = 1;
+ dl->dpcm_playback = 1;
+
+ *dai_link = dl;
+
+ return 0;
+}
+
+static int avs_card_suspend_pre(struct snd_soc_card *card)
+{
+ struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
+
+ return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
+}
+
+static int avs_card_resume_post(struct snd_soc_card *card)
+{
+ struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
+ struct avs_card_drvdata *data = snd_soc_card_get_drvdata(card);
+
+ return snd_soc_component_set_jack(codec_dai->component, &data->jack, NULL);
+}
+
+static int avs_es8336_probe(struct platform_device *pdev)
+{
+ struct snd_soc_dai_link *dai_link;
+ struct snd_soc_acpi_mach *mach;
+ struct avs_card_drvdata *data;
+ struct snd_soc_card *card;
+ struct device *dev = &pdev->dev;
+ const char *pname;
+ int ssp_port, ret;
+
+ mach = dev_get_platdata(dev);
+ pname = mach->mach_params.platform;
+ ssp_port = __ffs(mach->mach_params.i2s_link_mask);
+
+ ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
+ if (ret) {
+ dev_err(dev, "Failed to create dai link: %d", ret);
+ return ret;
+ }
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+ if (!data || !card)
+ return -ENOMEM;
+
+ card->name = "avs_es8336";
+ card->dev = dev;
+ card->owner = THIS_MODULE;
+ card->suspend_pre = avs_card_suspend_pre;
+ card->resume_post = avs_card_resume_post;
+ card->dai_link = dai_link;
+ card->num_links = 1;
+ card->controls = card_controls;
+ card->num_controls = ARRAY_SIZE(card_controls);
+ card->dapm_widgets = card_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
+ card->dapm_routes = card_routes;
+ card->num_dapm_routes = ARRAY_SIZE(card_routes);
+ card->fully_routed = true;
+ snd_soc_card_set_drvdata(card, data);
+
+ ret = snd_soc_fixup_dai_links_platform_name(card, pname);
+ if (ret)
+ return ret;
+
+ return devm_snd_soc_register_card(dev, card);
+}
+
+static struct platform_driver avs_es8336_driver = {
+ .probe = avs_es8336_probe,
+ .driver = {
+ .name = "avs_es8336",
+ .pm = &snd_soc_pm_ops,
+ },
+};
+
+module_platform_driver(avs_es8336_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:avs_es8336");
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