[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/soc/codecs/pcm179x.c b/src/kernel/linux/v4.14/sound/soc/codecs/pcm179x.c
new file mode 100644
index 0000000..82a3d9d
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/soc/codecs/pcm179x.c
@@ -0,0 +1,245 @@
+/*
+ * PCM179X ASoC codec driver
+ *
+ * Copyright (c) Amarula Solutions B.V. 2013
+ *
+ * Michael Trimarchi <michael@amarulasolutions.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <linux/of.h>
+
+#include "pcm179x.h"
+
+#define PCM179X_DAC_VOL_LEFT 0x10
+#define PCM179X_DAC_VOL_RIGHT 0x11
+#define PCM179X_FMT_CONTROL 0x12
+#define PCM179X_MODE_CONTROL 0x13
+#define PCM179X_SOFT_MUTE PCM179X_FMT_CONTROL
+
+#define PCM179X_FMT_MASK 0x70
+#define PCM179X_FMT_SHIFT 4
+#define PCM179X_MUTE_MASK 0x01
+#define PCM179X_MUTE_SHIFT 0
+#define PCM179X_ATLD_ENABLE (1 << 7)
+
+static const struct reg_default pcm179x_reg_defaults[] = {
+ { 0x10, 0xff },
+ { 0x11, 0xff },
+ { 0x12, 0x50 },
+ { 0x13, 0x00 },
+ { 0x14, 0x00 },
+ { 0x15, 0x01 },
+ { 0x16, 0x00 },
+ { 0x17, 0x00 },
+};
+
+static bool pcm179x_accessible_reg(struct device *dev, unsigned int reg)
+{
+ return reg >= 0x10 && reg <= 0x17;
+}
+
+static bool pcm179x_writeable_reg(struct device *dev, unsigned int reg)
+{
+ bool accessible;
+
+ accessible = pcm179x_accessible_reg(dev, reg);
+
+ return accessible && reg != 0x16 && reg != 0x17;
+}
+
+struct pcm179x_private {
+ struct regmap *regmap;
+ unsigned int format;
+ unsigned int rate;
+};
+
+static int pcm179x_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int format)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct pcm179x_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ priv->format = format;
+
+ return 0;
+}
+
+static int pcm179x_digital_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct pcm179x_private *priv = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ ret = regmap_update_bits(priv->regmap, PCM179X_SOFT_MUTE,
+ PCM179X_MUTE_MASK, !!mute);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int pcm179x_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct pcm179x_private *priv = snd_soc_codec_get_drvdata(codec);
+ int val = 0, ret;
+
+ priv->rate = params_rate(params);
+
+ switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ switch (params_width(params)) {
+ case 24:
+ case 32:
+ val = 2;
+ break;
+ case 16:
+ val = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ switch (params_width(params)) {
+ case 24:
+ case 32:
+ val = 5;
+ break;
+ case 16:
+ val = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(codec->dev, "Invalid DAI format\n");
+ return -EINVAL;
+ }
+
+ val = val << PCM179X_FMT_SHIFT | PCM179X_ATLD_ENABLE;
+
+ ret = regmap_update_bits(priv->regmap, PCM179X_FMT_CONTROL,
+ PCM179X_FMT_MASK | PCM179X_ATLD_ENABLE, val);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops pcm179x_dai_ops = {
+ .set_fmt = pcm179x_set_dai_fmt,
+ .hw_params = pcm179x_hw_params,
+ .digital_mute = pcm179x_digital_mute,
+};
+
+static const DECLARE_TLV_DB_SCALE(pcm179x_dac_tlv, -12000, 50, 1);
+
+static const struct snd_kcontrol_new pcm179x_controls[] = {
+ SOC_DOUBLE_R_RANGE_TLV("DAC Playback Volume", PCM179X_DAC_VOL_LEFT,
+ PCM179X_DAC_VOL_RIGHT, 0, 0xf, 0xff, 0,
+ pcm179x_dac_tlv),
+ SOC_SINGLE("DAC Invert Output Switch", PCM179X_MODE_CONTROL, 7, 1, 0),
+ SOC_SINGLE("DAC Rolloff Filter Switch", PCM179X_MODE_CONTROL, 1, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget pcm179x_dapm_widgets[] = {
+SND_SOC_DAPM_OUTPUT("IOUTL+"),
+SND_SOC_DAPM_OUTPUT("IOUTL-"),
+SND_SOC_DAPM_OUTPUT("IOUTR+"),
+SND_SOC_DAPM_OUTPUT("IOUTR-"),
+};
+
+static const struct snd_soc_dapm_route pcm179x_dapm_routes[] = {
+ { "IOUTL+", NULL, "Playback" },
+ { "IOUTL-", NULL, "Playback" },
+ { "IOUTR+", NULL, "Playback" },
+ { "IOUTR-", NULL, "Playback" },
+};
+
+static struct snd_soc_dai_driver pcm179x_dai = {
+ .name = "pcm179x-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ .rate_min = 10000,
+ .rate_max = 200000,
+ .formats = PCM1792A_FORMATS, },
+ .ops = &pcm179x_dai_ops,
+};
+
+const struct regmap_config pcm179x_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 23,
+ .reg_defaults = pcm179x_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(pcm179x_reg_defaults),
+ .writeable_reg = pcm179x_writeable_reg,
+ .readable_reg = pcm179x_accessible_reg,
+};
+EXPORT_SYMBOL_GPL(pcm179x_regmap_config);
+
+static const struct snd_soc_codec_driver soc_codec_dev_pcm179x = {
+ .component_driver = {
+ .controls = pcm179x_controls,
+ .num_controls = ARRAY_SIZE(pcm179x_controls),
+ .dapm_widgets = pcm179x_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(pcm179x_dapm_widgets),
+ .dapm_routes = pcm179x_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(pcm179x_dapm_routes),
+ },
+};
+
+int pcm179x_common_init(struct device *dev, struct regmap *regmap)
+{
+ struct pcm179x_private *pcm179x;
+
+ pcm179x = devm_kzalloc(dev, sizeof(struct pcm179x_private),
+ GFP_KERNEL);
+ if (!pcm179x)
+ return -ENOMEM;
+
+ pcm179x->regmap = regmap;
+ dev_set_drvdata(dev, pcm179x);
+
+ return snd_soc_register_codec(dev,
+ &soc_codec_dev_pcm179x, &pcm179x_dai, 1);
+}
+EXPORT_SYMBOL_GPL(pcm179x_common_init);
+
+int pcm179x_common_exit(struct device *dev)
+{
+ snd_soc_unregister_codec(dev);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcm179x_common_exit);
+
+MODULE_DESCRIPTION("ASoC PCM179X driver");
+MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
+MODULE_LICENSE("GPL");