1 files changed, 259 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c
new file mode 100644
index 000000000..70c806cc5
--- /dev/null
+++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2015-18 Intel Corporation.
+
+/*
+ * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "../../codecs/hdac_hdmi.h"
+#include "skl_hda_dsp_common.h"
+
+static const struct snd_soc_dapm_widget skl_hda_widgets[] = {
+	SND_SOC_DAPM_HP("Analog Out", NULL),
+	SND_SOC_DAPM_MIC("Analog In", NULL),
+	SND_SOC_DAPM_HP("Alt Analog Out", NULL),
+	SND_SOC_DAPM_MIC("Alt Analog In", NULL),
+	SND_SOC_DAPM_SPK("Digital Out", NULL),
+	SND_SOC_DAPM_MIC("Digital In", NULL),
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route skl_hda_map[] = {
+	{ "hifi3", NULL, "iDisp3 Tx"},
+	{ "iDisp3 Tx", NULL, "iDisp3_out"},
+	{ "hifi2", NULL, "iDisp2 Tx"},
+	{ "iDisp2 Tx", NULL, "iDisp2_out"},
+	{ "hifi1", NULL, "iDisp1 Tx"},
+	{ "iDisp1 Tx", NULL, "iDisp1_out"},
+
+	{ "Analog Out", NULL, "Codec Output Pin1" },
+	{ "Digital Out", NULL, "Codec Output Pin2" },
+	{ "Alt Analog Out", NULL, "Codec Output Pin3" },
+
+	{ "Codec Input Pin1", NULL, "Analog In" },
+	{ "Codec Input Pin2", NULL, "Digital In" },
+	{ "Codec Input Pin3", NULL, "Alt Analog In" },
+
+	/* digital mics */
+	{"DMic", NULL, "SoC DMIC"},
+
+	/* CODEC BE connections */
+	{ "Analog Codec Playback", NULL, "Analog CPU Playback" },
+	{ "Analog CPU Playback", NULL, "codec0_out" },
+	{ "Digital Codec Playback", NULL, "Digital CPU Playback" },
+	{ "Digital CPU Playback", NULL, "codec1_out" },
+	{ "Alt Analog Codec Playback", NULL, "Alt Analog CPU Playback" },
+	{ "Alt Analog CPU Playback", NULL, "codec2_out" },
+
+	{ "codec0_in", NULL, "Analog CPU Capture" },
+	{ "Analog CPU Capture", NULL, "Analog Codec Capture" },
+	{ "codec1_in", NULL, "Digital CPU Capture" },
+	{ "Digital CPU Capture", NULL, "Digital Codec Capture" },
+	{ "codec2_in", NULL, "Alt Analog CPU Capture" },
+	{ "Alt Analog CPU Capture", NULL, "Alt Analog Codec Capture" },
+};
+
+static int skl_hda_card_late_probe(struct snd_soc_card *card)
+{
+	return skl_hda_hdmi_jack_init(card);
+}
+
+static int
+skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
+{
+	struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
+	int ret = 0;
+
+	dev_dbg(card->dev, "dai link name - %s\n", link->name);
+	link->platforms->name = ctx->platform_name;
+	link->nonatomic = 1;
+
+	if (!ctx->idisp_codec)
+		return 0;
+
+	if (strstr(link->name, "HDMI")) {
+		ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
+
+		if (ret < 0)
+			return ret;
+
+		ctx->dai_index++;
+	}
+
+	ctx->pcm_count++;
+	return ret;
+}
+
+static struct snd_soc_card hda_soc_card = {
+	.name = "hda-dsp",
+	.owner = THIS_MODULE,
+	.dai_link = skl_hda_be_dai_links,
+	.dapm_widgets = skl_hda_widgets,
+	.dapm_routes = skl_hda_map,
+	.add_dai_link = skl_hda_add_dai_link,
+	.fully_routed = true,
+	.late_probe = skl_hda_card_late_probe,
+};
+
+static char hda_soc_components[30];
+
+#define IDISP_DAI_COUNT		3
+#define HDAC_DAI_COUNT		2
+#define DMIC_DAI_COUNT		2
+
+/* there are two routes per iDisp output */
+#define IDISP_ROUTE_COUNT	(IDISP_DAI_COUNT * 2)
+#define IDISP_CODEC_MASK	0x4
+
+#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
+
+static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
+{
+	struct snd_soc_card *card = &hda_soc_card;
+	struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
+	struct snd_soc_dai_link *dai_link;
+	u32 codec_count, codec_mask;
+	int i, num_links, num_route;
+
+	codec_mask = mach_params->codec_mask;
+	codec_count = hweight_long(codec_mask);
+	ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK);
+
+	if (!codec_count || codec_count > 2 ||
+	    (codec_count == 2 && !ctx->idisp_codec))
+		return -EINVAL;
+
+	if (codec_mask == IDISP_CODEC_MASK) {
+		/* topology with iDisp as the only HDA codec */
+		num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT;
+		num_route = IDISP_ROUTE_COUNT;
+
+		/*
+		 * rearrange the dai link array and make the
+		 * dmic dai links follow idsp dai links for only
+		 * num_links of dai links need to be registered
+		 * to ASoC.
+		 */
+		for (i = 0; i < DMIC_DAI_COUNT; i++) {
+			skl_hda_be_dai_links[IDISP_DAI_COUNT + i] =
+				skl_hda_be_dai_links[IDISP_DAI_COUNT +
+					HDAC_DAI_COUNT + i];
+		}
+	} else {
+		/* topology with external and iDisp HDA codecs */
+		num_links = ARRAY_SIZE(skl_hda_be_dai_links);
+		num_route = ARRAY_SIZE(skl_hda_map);
+		card->dapm_widgets = skl_hda_widgets;
+		card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets);
+		if (!ctx->idisp_codec) {
+			card->dapm_routes = &skl_hda_map[IDISP_ROUTE_COUNT];
+			num_route -= IDISP_ROUTE_COUNT;
+			for (i = 0; i < IDISP_DAI_COUNT; i++) {
+				skl_hda_be_dai_links[i].codecs = &asoc_dummy_dlc;
+				skl_hda_be_dai_links[i].num_codecs = 1;
+			}
+		}
+	}
+
+	card->num_links = num_links;
+	card->num_dapm_routes = num_route;
+
+	for_each_card_prelinks(card, i, dai_link)
+		dai_link->platforms->name = mach_params->platform;
+
+	return 0;
+}
+
+static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
+{
+	struct snd_soc_pcm_runtime *rtd;
+	struct hdac_hda_priv *hda_pvt;
+	struct snd_soc_dai *dai;
+
+	for_each_card_rtds(card, rtd) {
+		if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
+			continue;
+		dai = asoc_rtd_to_codec(rtd, 0);
+		hda_pvt = snd_soc_component_get_drvdata(dai->component);
+		if (hda_pvt) {
+			/*
+			 * all codecs are on the same bus, so it's sufficient
+			 * to look up only the first one
+			 */
+			snd_hda_set_power_save(hda_pvt->codec->bus,
+					       HDA_CODEC_AUTOSUSPEND_DELAY_MS);
+			break;
+		}
+	}
+}
+
+static int skl_hda_audio_probe(struct platform_device *pdev)
+{
+	struct snd_soc_acpi_mach *mach;
+	struct skl_hda_private *ctx;
+	int ret;
+
+	dev_dbg(&pdev->dev, "entry\n");
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
+
+	mach = pdev->dev.platform_data;
+	if (!mach)
+		return -EINVAL;
+
+	snd_soc_card_set_drvdata(&hda_soc_card, ctx);
+
+	ret = skl_hda_fill_card_info(&mach->mach_params);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
+		return ret;
+	}
+
+	ctx->pcm_count = hda_soc_card.num_links;
+	ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */
+	ctx->platform_name = mach->mach_params.platform;
+	ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
+
+	hda_soc_card.dev = &pdev->dev;
+
+	if (mach->mach_params.dmic_num > 0) {
+		snprintf(hda_soc_components, sizeof(hda_soc_components),
+				"cfg-dmics:%d", mach->mach_params.dmic_num);
+		hda_soc_card.components = hda_soc_components;
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
+	if (!ret)
+		skl_set_hda_codec_autosuspend_delay(&hda_soc_card);
+
+	return ret;
+}
+
+static struct platform_driver skl_hda_audio = {
+	.probe = skl_hda_audio_probe,
+	.driver = {
+		.name = "skl_hda_dsp_generic",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+
+module_platform_driver(skl_hda_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
+MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:skl_hda_dsp_generic");
+MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);