1 files changed, 307 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/sof_cs42l42.c b/sound/soc/intel/boards/sof_cs42l42.c
new file mode 100644
index 000000000000..455c5bc8c634
--- /dev/null
+++ b/sound/soc/intel/boards/sof_cs42l42.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2021 Intel Corporation.
+
+/*
+ * Intel SOF Machine Driver with Cirrus Logic CS42L42 Codec
+ * and speaker codec MAX98357A
+ */
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/dmi.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/sof.h>
+#include <sound/soc-acpi.h>
+#include <dt-bindings/sound/cs42l42.h>
+#include "../common/soc-intel-quirks.h"
+#include "sof_board_helpers.h"
+#include "sof_maxim_common.h"
+
+static struct snd_soc_jack_pin jack_pins[] = {
+	{
+		.pin    = "Headphone Jack",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "Headset Mic",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+};
+
+/* Default: SSP2 */
+static unsigned long sof_cs42l42_quirk = SOF_SSP_PORT_CODEC(2);
+
+static int sof_cs42l42_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
+	struct snd_soc_jack *jack = &ctx->headset_jack;
+	int ret;
+
+	/*
+	 * Headset buttons map to the google Reference headset.
+	 * These can be configured by userspace.
+	 */
+	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
+					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
+					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
+					 SND_JACK_BTN_3,
+					 jack,
+					 jack_pins,
+					 ARRAY_SIZE(jack_pins));
+	if (ret) {
+		dev_err(rtd->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);
+
+	ret = snd_soc_component_set_jack(component, jack, NULL);
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+};
+
+static void sof_cs42l42_exit(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
+
+	snd_soc_component_set_jack(component, NULL, NULL);
+}
+
+static int sof_cs42l42_hw_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
+	int clk_freq, ret;
+
+	clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */
+
+	if (clk_freq <= 0) {
+		dev_err(rtd->dev, "get bclk freq failed: %d\n", clk_freq);
+		return -EINVAL;
+	}
+
+	/* Configure sysclk for codec */
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
+				     clk_freq, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
+
+	return ret;
+}
+
+static const struct snd_soc_ops sof_cs42l42_ops = {
+	.hw_params = sof_cs42l42_hw_params,
+};
+
+static int sof_card_late_probe(struct snd_soc_card *card)
+{
+	return sof_intel_board_card_late_probe(card);
+}
+
+static const struct snd_kcontrol_new sof_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+};
+
+static const struct snd_soc_dapm_widget sof_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route sof_map[] = {
+	/* HP jack connectors - unknown if we have jack detection */
+	{"Headphone Jack", NULL, "HP"},
+
+	/* other jacks */
+	{"HS", NULL, "Headset Mic"},
+};
+
+/* sof audio machine driver for cs42l42 codec */
+static struct snd_soc_card sof_audio_card_cs42l42 = {
+	.name = "cs42l42", /* the sof- prefix is added by the core */
+	.owner = THIS_MODULE,
+	.controls = sof_controls,
+	.num_controls = ARRAY_SIZE(sof_controls),
+	.dapm_widgets = sof_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(sof_widgets),
+	.dapm_routes = sof_map,
+	.num_dapm_routes = ARRAY_SIZE(sof_map),
+	.fully_routed = true,
+	.late_probe = sof_card_late_probe,
+};
+
+static struct snd_soc_dai_link_component cs42l42_component[] = {
+	{
+		.name = "i2c-10134242:00",
+		.dai_name = "cs42l42",
+	}
+};
+
+static int
+sof_card_dai_links_create(struct device *dev, struct snd_soc_card *card,
+			  struct sof_card_private *ctx)
+{
+	int ret;
+
+	ret = sof_intel_board_set_dai_link(dev, card, ctx);
+	if (ret)
+		return ret;
+
+	if (!ctx->codec_link) {
+		dev_err(dev, "codec link not available");
+		return -EINVAL;
+	}
+
+	/* codec-specific fields for headphone codec */
+	ctx->codec_link->codecs = cs42l42_component;
+	ctx->codec_link->num_codecs = ARRAY_SIZE(cs42l42_component);
+	ctx->codec_link->init = sof_cs42l42_init;
+	ctx->codec_link->exit = sof_cs42l42_exit;
+	ctx->codec_link->ops = &sof_cs42l42_ops;
+
+	if (ctx->amp_type == CODEC_NONE)
+		return 0;
+
+	if (!ctx->amp_link) {
+		dev_err(dev, "amp link not available");
+		return -EINVAL;
+	}
+
+	/* codec-specific fields for speaker amplifier */
+	switch (ctx->amp_type) {
+	case CODEC_MAX98357A:
+		max_98357a_dai_link(ctx->amp_link);
+		break;
+	case CODEC_MAX98360A:
+		max_98360a_dai_link(ctx->amp_link);
+		break;
+	default:
+		dev_err(dev, "invalid amp type %d\n", ctx->amp_type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#define GLK_LINK_ORDER	SOF_LINK_ORDER(SOF_LINK_AMP,         \
+					SOF_LINK_CODEC,      \
+					SOF_LINK_DMIC01,     \
+					SOF_LINK_IDISP_HDMI, \
+					SOF_LINK_NONE,       \
+					SOF_LINK_NONE,       \
+					SOF_LINK_NONE)
+
+static int sof_audio_probe(struct platform_device *pdev)
+{
+	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
+	struct sof_card_private *ctx;
+	int ret;
+
+	if (pdev->id_entry && pdev->id_entry->driver_data)
+		sof_cs42l42_quirk = (unsigned long)pdev->id_entry->driver_data;
+
+	dev_dbg(&pdev->dev, "sof_cs42l42_quirk = %lx\n", sof_cs42l42_quirk);
+
+	/* initialize ctx with board quirk */
+	ctx = sof_intel_board_get_ctx(&pdev->dev, sof_cs42l42_quirk);
+	if (!ctx)
+		return -ENOMEM;
+
+	if (soc_intel_is_glk()) {
+		ctx->dmic_be_num = 1;
+
+		/* overwrite the DAI link order for GLK boards */
+		ctx->link_order_overwrite = GLK_LINK_ORDER;
+	}
+
+	if (mach->mach_params.codec_mask & IDISP_CODEC_MASK)
+		ctx->hdmi.idisp_codec = true;
+
+	/* update dai_link */
+	ret = sof_card_dai_links_create(&pdev->dev, &sof_audio_card_cs42l42, ctx);
+	if (ret)
+		return ret;
+
+	sof_audio_card_cs42l42.dev = &pdev->dev;
+
+	/* set platform name for each dailink */
+	ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_cs42l42,
+						    mach->mach_params.platform);
+	if (ret)
+		return ret;
+
+	snd_soc_card_set_drvdata(&sof_audio_card_cs42l42, ctx);
+
+	return devm_snd_soc_register_card(&pdev->dev,
+					  &sof_audio_card_cs42l42);
+}
+
+static const struct platform_device_id board_ids[] = {
+	{
+		.name = "glk_cs4242_mx98357a",
+		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(2) |
+					SOF_SSP_PORT_AMP(1)),
+	},
+	{
+		.name = "jsl_cs4242_mx98360a",
+		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
+					SOF_SSP_PORT_AMP(1)),
+	},
+	{
+		.name = "adl_cs42l42_def",
+		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
+					SOF_SSP_PORT_AMP(1) |
+					SOF_NUM_IDISP_HDMI(4) |
+					SOF_BT_OFFLOAD_PRESENT |
+					SOF_SSP_PORT_BT_OFFLOAD(2)),
+	},
+	{
+		.name = "rpl_cs42l42_def",
+		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(0) |
+					SOF_SSP_PORT_AMP(1) |
+					SOF_NUM_IDISP_HDMI(4) |
+					SOF_BT_OFFLOAD_PRESENT |
+					SOF_SSP_PORT_BT_OFFLOAD(2)),
+	},
+	{
+		.name = "mtl_cs42l42_def",
+		.driver_data = (kernel_ulong_t)(SOF_SSP_PORT_CODEC(2) |
+					SOF_SSP_PORT_AMP(0) |
+					SOF_BT_OFFLOAD_PRESENT |
+					SOF_SSP_PORT_BT_OFFLOAD(1)),
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, board_ids);
+
+static struct platform_driver sof_audio = {
+	.probe = sof_audio_probe,
+	.driver = {
+		.name = "sof_cs42l42",
+		.pm = &snd_soc_pm_ops,
+	},
+	.id_table = board_ids,
+};
+module_platform_driver(sof_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("SOF Audio Machine driver for CS42L42");
+MODULE_AUTHOR("Brent Lu <brent.lu@intel.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_BOARD_HELPERS");
+MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_MAXIM_COMMON");