ASR_BASE

Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/sound/soc/meson/axg-frddr.c b/marvell/linux/sound/soc/meson/axg-frddr.c
new file mode 100644
index 0000000..09773a9
--- /dev/null
+++ b/marvell/linux/sound/soc/meson/axg-frddr.c
@@ -0,0 +1,367 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+//
+// Copyright (c) 2018 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+/*
+ * This driver implements the frontend playback DAI of AXG and G12A based SoCs
+ */
+
+#include <linux/clk.h>
+#include <linux/regmap.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "axg-fifo.h"
+
+#define CTRL0_FRDDR_PP_MODE		BIT(30)
+#define CTRL0_SEL1_EN_SHIFT		3
+#define CTRL0_SEL2_SHIFT		4
+#define CTRL0_SEL2_EN_SHIFT		7
+#define CTRL0_SEL3_SHIFT		8
+#define CTRL0_SEL3_EN_SHIFT		11
+#define CTRL1_FRDDR_FORCE_FINISH	BIT(12)
+#define CTRL2_SEL1_SHIFT		0
+#define CTRL2_SEL1_EN_SHIFT		4
+#define CTRL2_SEL2_SHIFT		8
+#define CTRL2_SEL2_EN_SHIFT		12
+#define CTRL2_SEL3_SHIFT		16
+#define CTRL2_SEL3_EN_SHIFT		20
+
+static int g12a_frddr_dai_prepare(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
+
+	/* Reset the read pointer to the FIFO_INIT_ADDR */
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, 0);
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, CTRL1_FRDDR_FORCE_FINISH);
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, 0);
+
+	return 0;
+}
+
+static int axg_frddr_dai_startup(struct snd_pcm_substream *substream,
+				 struct snd_soc_dai *dai)
+{
+	struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
+	unsigned int fifo_depth;
+	int ret;
+
+	/* Enable pclk to access registers and clock the fifo ip */
+	ret = clk_prepare_enable(fifo->pclk);
+	if (ret)
+		return ret;
+
+	/* Apply single buffer mode to the interface */
+	regmap_update_bits(fifo->map, FIFO_CTRL0, CTRL0_FRDDR_PP_MODE, 0);
+
+	/*
+	 * TODO: We could adapt the fifo depth and the fifo threshold
+	 * depending on the expected memory throughput and lantencies
+	 * For now, we'll just use the same values as the vendor kernel
+	 * Depth and threshold are zero based.
+	 */
+	fifo_depth = AXG_FIFO_MIN_CNT - 1;
+	regmap_update_bits(fifo->map, FIFO_CTRL1, CTRL1_FRDDR_DEPTH_MASK,
+			   CTRL1_FRDDR_DEPTH(fifo_depth));
+
+	return 0;
+}
+
+static void axg_frddr_dai_shutdown(struct snd_pcm_substream *substream,
+				   struct snd_soc_dai *dai)
+{
+	struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
+
+	clk_disable_unprepare(fifo->pclk);
+}
+
+static int axg_frddr_pcm_new(struct snd_soc_pcm_runtime *rtd,
+			     struct snd_soc_dai *dai)
+{
+	return axg_fifo_pcm_new(rtd, SNDRV_PCM_STREAM_PLAYBACK);
+}
+
+static const struct snd_soc_dai_ops axg_frddr_ops = {
+	.startup	= axg_frddr_dai_startup,
+	.shutdown	= axg_frddr_dai_shutdown,
+};
+
+static struct snd_soc_dai_driver axg_frddr_dai_drv = {
+	.name = "FRDDR",
+	.playback = {
+		.stream_name	= "Playback",
+		.channels_min	= 1,
+		.channels_max	= AXG_FIFO_CH_MAX,
+		.rates		= AXG_FIFO_RATES,
+		.formats	= AXG_FIFO_FORMATS,
+	},
+	.ops		= &axg_frddr_ops,
+	.pcm_new	= axg_frddr_pcm_new,
+};
+
+static const char * const axg_frddr_sel_texts[] = {
+	"OUT 0", "OUT 1", "OUT 2", "OUT 3", "OUT 4", "OUT 5", "OUT 6", "OUT 7",
+};
+
+static SOC_ENUM_SINGLE_DECL(axg_frddr_sel_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
+			    axg_frddr_sel_texts);
+
+static const struct snd_kcontrol_new axg_frddr_out_demux =
+	SOC_DAPM_ENUM("Output Sink", axg_frddr_sel_enum);
+
+static const struct snd_soc_dapm_widget axg_frddr_dapm_widgets[] = {
+	SND_SOC_DAPM_DEMUX("SINK SEL", SND_SOC_NOPM, 0, 0,
+			   &axg_frddr_out_demux),
+	SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
+};
+
+static const struct snd_soc_dapm_route axg_frddr_dapm_routes[] = {
+	{ "SINK SEL", NULL, "Playback" },
+	{ "OUT 0", "OUT 0",  "SINK SEL" },
+	{ "OUT 1", "OUT 1",  "SINK SEL" },
+	{ "OUT 2", "OUT 2",  "SINK SEL" },
+	{ "OUT 3", "OUT 3",  "SINK SEL" },
+	{ "OUT 4", "OUT 4",  "SINK SEL" },
+	{ "OUT 5", "OUT 5",  "SINK SEL" },
+	{ "OUT 6", "OUT 6",  "SINK SEL" },
+	{ "OUT 7", "OUT 7",  "SINK SEL" },
+};
+
+static const struct snd_soc_component_driver axg_frddr_component_drv = {
+	.dapm_widgets		= axg_frddr_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(axg_frddr_dapm_widgets),
+	.dapm_routes		= axg_frddr_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(axg_frddr_dapm_routes),
+	.ops			= &axg_fifo_pcm_ops
+};
+
+static const struct axg_fifo_match_data axg_frddr_match_data = {
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &axg_frddr_component_drv,
+	.dai_drv		= &axg_frddr_dai_drv
+};
+
+static const struct snd_soc_dai_ops g12a_frddr_ops = {
+	.prepare	= g12a_frddr_dai_prepare,
+	.startup	= axg_frddr_dai_startup,
+	.shutdown	= axg_frddr_dai_shutdown,
+};
+
+static struct snd_soc_dai_driver g12a_frddr_dai_drv = {
+	.name = "FRDDR",
+	.playback = {
+		.stream_name	= "Playback",
+		.channels_min	= 1,
+		.channels_max	= AXG_FIFO_CH_MAX,
+		.rates		= AXG_FIFO_RATES,
+		.formats	= AXG_FIFO_FORMATS,
+	},
+	.ops		= &g12a_frddr_ops,
+	.pcm_new	= axg_frddr_pcm_new,
+};
+
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel1_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel2_enum, FIFO_CTRL0, CTRL0_SEL2_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel3_enum, FIFO_CTRL0, CTRL0_SEL3_SHIFT,
+			    axg_frddr_sel_texts);
+
+static const struct snd_kcontrol_new g12a_frddr_out1_demux =
+	SOC_DAPM_ENUM("Output Src 1", g12a_frddr_sel1_enum);
+static const struct snd_kcontrol_new g12a_frddr_out2_demux =
+	SOC_DAPM_ENUM("Output Src 2", g12a_frddr_sel2_enum);
+static const struct snd_kcontrol_new g12a_frddr_out3_demux =
+	SOC_DAPM_ENUM("Output Src 3", g12a_frddr_sel3_enum);
+
+static const struct snd_kcontrol_new g12a_frddr_out1_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL1_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new g12a_frddr_out2_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL2_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new g12a_frddr_out3_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL3_EN_SHIFT, 1, 0);
+
+static const struct snd_soc_dapm_widget g12a_frddr_dapm_widgets[] = {
+	SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out1_enable),
+	SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out2_enable),
+	SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out3_enable),
+	SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out1_demux),
+	SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out2_demux),
+	SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out3_demux),
+	SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
+};
+
+static const struct snd_soc_dapm_route g12a_frddr_dapm_routes[] = {
+	{ "SRC 1", NULL, "Playback" },
+	{ "SRC 2", NULL, "Playback" },
+	{ "SRC 3", NULL, "Playback" },
+	{ "SRC 1 EN", "Switch", "SRC 1" },
+	{ "SRC 2 EN", "Switch", "SRC 2" },
+	{ "SRC 3 EN", "Switch", "SRC 3" },
+	{ "SINK 1 SEL", NULL, "SRC 1 EN" },
+	{ "SINK 2 SEL", NULL, "SRC 2 EN" },
+	{ "SINK 3 SEL", NULL, "SRC 3 EN" },
+	{ "OUT 0", "OUT 0", "SINK 1 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 1 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 1 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 1 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 1 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 1 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 1 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 1 SEL" },
+	{ "OUT 0", "OUT 0", "SINK 2 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 2 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 2 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 2 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 2 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 2 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 2 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 2 SEL" },
+	{ "OUT 0", "OUT 0", "SINK 3 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 3 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 3 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 3 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 3 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 3 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 3 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 3 SEL" },
+};
+
+static const struct snd_soc_component_driver g12a_frddr_component_drv = {
+	.dapm_widgets		= g12a_frddr_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(g12a_frddr_dapm_widgets),
+	.dapm_routes		= g12a_frddr_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(g12a_frddr_dapm_routes),
+	.ops			= &g12a_fifo_pcm_ops
+};
+
+static const struct axg_fifo_match_data g12a_frddr_match_data = {
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &g12a_frddr_component_drv,
+	.dai_drv		= &g12a_frddr_dai_drv
+};
+
+/* On SM1, the output selection in on CTRL2 */
+static const struct snd_kcontrol_new sm1_frddr_out1_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL1_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new sm1_frddr_out2_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL2_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new sm1_frddr_out3_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL3_EN_SHIFT, 1, 0);
+
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel1_enum, FIFO_CTRL2, CTRL2_SEL1_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel2_enum, FIFO_CTRL2, CTRL2_SEL2_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel3_enum, FIFO_CTRL2, CTRL2_SEL3_SHIFT,
+			    axg_frddr_sel_texts);
+
+static const struct snd_kcontrol_new sm1_frddr_out1_demux =
+	SOC_DAPM_ENUM("Output Src 1", sm1_frddr_sel1_enum);
+static const struct snd_kcontrol_new sm1_frddr_out2_demux =
+	SOC_DAPM_ENUM("Output Src 2", sm1_frddr_sel2_enum);
+static const struct snd_kcontrol_new sm1_frddr_out3_demux =
+	SOC_DAPM_ENUM("Output Src 3", sm1_frddr_sel3_enum);
+
+static const struct snd_soc_dapm_widget sm1_frddr_dapm_widgets[] = {
+	SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out1_enable),
+	SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out2_enable),
+	SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out3_enable),
+	SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out1_demux),
+	SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out2_demux),
+	SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out3_demux),
+	SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
+};
+
+static const struct snd_soc_component_driver sm1_frddr_component_drv = {
+	.dapm_widgets		= sm1_frddr_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(sm1_frddr_dapm_widgets),
+	.dapm_routes		= g12a_frddr_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(g12a_frddr_dapm_routes),
+	.ops			= &g12a_fifo_pcm_ops
+};
+
+static const struct axg_fifo_match_data sm1_frddr_match_data = {
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &sm1_frddr_component_drv,
+	.dai_drv		= &g12a_frddr_dai_drv
+};
+
+static const struct of_device_id axg_frddr_of_match[] = {
+	{
+		.compatible = "amlogic,axg-frddr",
+		.data = &axg_frddr_match_data,
+	}, {
+		.compatible = "amlogic,g12a-frddr",
+		.data = &g12a_frddr_match_data,
+	}, {
+		.compatible = "amlogic,sm1-frddr",
+		.data = &sm1_frddr_match_data,
+	}, {}
+};
+MODULE_DEVICE_TABLE(of, axg_frddr_of_match);
+
+static struct platform_driver axg_frddr_pdrv = {
+	.probe = axg_fifo_probe,
+	.driver = {
+		.name = "axg-frddr",
+		.of_match_table = axg_frddr_of_match,
+	},
+};
+module_platform_driver(axg_frddr_pdrv);
+
+MODULE_DESCRIPTION("Amlogic AXG/G12A playback fifo driver");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");