[PATCH] ASoC: Intel: avs: Add support for RT5663 codec

[Alicja Michalska <ahplka19@gmail.com>]

This patch adds support for RT5663 codec on KBL platform.
Such hardware configuration can be found in Google Pixelbook (Google/Eve).

Reported-and-tested-by: CoolStar <coolstarorganization@gmail.com>
Signed-off-by: Alicja Michalska <ahplka19@gmail.com>

diff --git a/sound/soc/intel/avs/board_selection.c b/sound/soc/intel/avs/board_selection.c
index b2823c2107f7..b167a641d1d5 100644
--- a/sound/soc/intel/avs/board_selection.c
+++ b/sound/soc/intel/avs/board_selection.c
@@ -159,6 +159,14 @@ static struct snd_soc_acpi_mach avs_kbl_i2s_machines[] = {
 		},
 		.tplg_filename = "da7219-tplg.bin",
 	},
+	{
+		.id = "10EC5663",
+		.drv_name = "avs_rt5663",
+		.mach_params = {
+			.i2s_link_mask = AVS_SSP(1),
+		},
+		.tplg_filename = "rt5663-tplg.bin",
+	},
 	{},
 };
 
diff --git a/sound/soc/intel/avs/boards/Kconfig b/sound/soc/intel/avs/boards/Kconfig
index e4c230efe8d7..04c090c3f9b5 100644
--- a/sound/soc/intel/avs/boards/Kconfig
+++ b/sound/soc/intel/avs/boards/Kconfig
@@ -125,6 +125,16 @@ config SND_SOC_INTEL_AVS_MACH_RT5682
 	   Say Y or m if you have such a device. This is a recommended option.
 	   If unsure select "N".
 
+config SND_SOC_INTEL_AVS_MACH_RT5663
+	tristate "rt5663 in I2S mode"
+	depends on I2C
+	depends on MFD_INTEL_LPSS || COMPILE_TEST
+	select SND_SOC_RT5663_I2C
+	help
+	  This adds support for ASoC machine driver with RT5663 I2S audio codec.
+	  Say Y or m if you have such a device. This is a recommended option.
+	  If unsure select "N".
+
 config SND_SOC_INTEL_AVS_MACH_SSM4567
 	tristate "ssm4567 I2S board"
 	depends on I2C
diff --git a/sound/soc/intel/avs/boards/Makefile b/sound/soc/intel/avs/boards/Makefile
index b81343420370..3db863fc26a7 100644
--- a/sound/soc/intel/avs/boards/Makefile
+++ b/sound/soc/intel/avs/boards/Makefile
@@ -13,6 +13,7 @@ snd-soc-avs-rt274-objs := rt274.o
 snd-soc-avs-rt286-objs := rt286.o
 snd-soc-avs-rt298-objs := rt298.o
 snd-soc-avs-rt5682-objs := rt5682.o
+snd-soc-avs-rt5663-objs := rt5663.o
 snd-soc-avs-ssm4567-objs := ssm4567.o
 
 obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_DA7219) += snd-soc-avs-da7219.o
@@ -28,4 +29,5 @@ obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT274) += snd-soc-avs-rt274.o
 obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT286) += snd-soc-avs-rt286.o
 obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT298) += snd-soc-avs-rt298.o
 obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT5682) += snd-soc-avs-rt5682.o
+obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT5663) += snd-soc-avs-rt5663.o
 obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_SSM4567) += snd-soc-avs-ssm4567.o
diff --git a/sound/soc/intel/avs/boards/rt5663.c b/sound/soc/intel/avs/boards/rt5663.c
new file mode 100644
index 000000000000..7d8f45267d27
--- /dev/null
+++ b/sound/soc/intel/avs/boards/rt5663.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) CoolStar. All rights reserved.
+// Based off da7219 module
+// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
+//
+// Author: CoolStar <coolstarorganization.com>
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include <uapi/linux/input-event-codes.h>
+#include "../../../codecs/rt5663.h"
+
+#define RT5663_DAI_NAME		"rt5663-aif"
+
+static const struct snd_kcontrol_new card_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+};
+
+static const struct snd_soc_dapm_widget card_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route card_base_routes[] = {
+	/* HP jack connectors - unknown if we have jack detection */
+	{"Headphone Jack", NULL, "HPOL"},
+	{"Headphone Jack", NULL, "HPOR"},
+
+	{"IN1P", NULL, "Headset Mic"},
+	{"IN1N", NULL, "Headset Mic"},
+};
+
+static int avs_rt5663_codec_init(struct snd_soc_pcm_runtime *runtime)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
+	struct snd_soc_card *card = runtime->card;
+	struct snd_soc_jack *jack;
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
+	int ret;
+
+	jack = snd_soc_card_get_drvdata(card);
+
+	rt5663_sel_asrc_clk_src(component,
+				RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
+				RT5663_CLK_SEL_I2S1_ASRC);
+				
+	snd_soc_dai_set_sysclk(codec_dai,
+			RT5663_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
+
+	/*
+	 * Headset buttons map to the google Reference headset.
+	 * These can be configured by userspace.
+	 */
+	ret = snd_soc_card_jack_new(card, "Headset Jack",
+				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
+				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
+				    SND_JACK_BTN_3 | SND_JACK_LINEOUT, jack);
+	if (ret) {
+		dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
+		return ret;
+	}
+
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
+
+	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-10EC5663:00");
+	dl->codecs->dai_name = RT5663_DAI_NAME;
+	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_CBS_CFS;
+	dl->init = avs_rt5663_codec_init;
+	dl->nonatomic = 1;
+	dl->no_pcm = 1;
+	dl->dpcm_capture = 1;
+	dl->dpcm_playback = 1;
+
+	*dai_link = dl;
+
+	return 0;
+}
+
+static int avs_create_dapm_routes(struct device *dev, int ssp_port,
+				  struct snd_soc_dapm_route **routes, int *num_routes)
+{
+	struct snd_soc_dapm_route *dr;
+	const int num_base = ARRAY_SIZE(card_base_routes);
+	const int num_dr = num_base + 2;
+	int idx;
+
+	dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return -ENOMEM;
+
+	memcpy(dr, card_base_routes, num_base * sizeof(*dr));
+
+	idx = num_base;
+	dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "AIF Playback");
+	dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
+	if (!dr[idx].sink || !dr[idx].source)
+		return -ENOMEM;
+
+	idx++;
+	dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
+	dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "AIF Capture");
+	if (!dr[idx].sink || !dr[idx].source)
+		return -ENOMEM;
+
+	*routes = dr;
+	*num_routes = num_dr;
+
+	return 0;
+}
+
+static int avs_card_set_jack(struct snd_soc_card *card, struct snd_soc_jack *jack)
+{
+	struct snd_soc_component *component;
+
+	for_each_card_components(card, component)
+		snd_soc_component_set_jack(component, jack, NULL);
+	return 0;
+}
+
+static int avs_card_remove(struct snd_soc_card *card)
+{
+	return avs_card_set_jack(card, NULL);
+}
+
+static int avs_card_suspend_pre(struct snd_soc_card *card)
+{
+	return avs_card_set_jack(card, NULL);
+}
+
+static int avs_card_resume_post(struct snd_soc_card *card)
+{
+	struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
+
+	return avs_card_set_jack(card, jack);
+}
+
+static int avs_rt5663_probe(struct platform_device *pdev)
+{
+	struct snd_soc_dapm_route *routes;
+	struct snd_soc_dai_link *dai_link;
+	struct snd_soc_acpi_mach *mach;
+	struct snd_soc_card *card;
+	struct snd_soc_jack *jack;
+	struct device *dev = &pdev->dev;
+	const char *pname;
+	int num_routes, 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;
+	}
+
+	ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes);
+	if (ret) {
+		dev_err(dev, "Failed to create dapm routes: %d", ret);
+		return ret;
+	}
+
+	jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!jack || !card)
+		return -ENOMEM;
+
+	card->name = "avs_rt5663";
+	card->dev = dev;
+	card->owner = THIS_MODULE;
+	card->remove = avs_card_remove;
+	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 = routes;
+	card->num_dapm_routes = num_routes;
+	card->fully_routed = true;
+	snd_soc_card_set_drvdata(card, jack);
+
+	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_rt5663_driver = {
+	.probe = avs_rt5663_probe,
+	.driver = {
+		.name = "avs_rt5663",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+
+module_platform_driver(avs_rt5663_driver);
+
+MODULE_AUTHOR("CoolStar <coolstarorganization@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:avs_rt5663");