Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 264 insertions, 0 deletions

diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
new file mode 100644
index 000000000..8d88db9c1
--- /dev/null
+++ b/sound/soc/codecs/si476x.c
@@ -0,0 +1,264 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * sound/soc/codecs/si476x.c -- Codec driver for SI476X chips
+ *
+ * Copyright (C) 2012 Innovative Converged Devices(ICD)
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+
+#include <linux/i2c.h>
+
+#include <linux/mfd/si476x-core.h>
+
+enum si476x_audio_registers {
+	SI476X_DIGITAL_IO_OUTPUT_FORMAT		= 0x0203,
+	SI476X_DIGITAL_IO_OUTPUT_SAMPLE_RATE	= 0x0202,
+};
+
+enum si476x_digital_io_output_format {
+	SI476X_DIGITAL_IO_SLOT_SIZE_SHIFT	= 11,
+	SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT	= 8,
+};
+
+#define SI476X_DIGITAL_IO_OUTPUT_WIDTH_MASK	((0x7 << SI476X_DIGITAL_IO_SLOT_SIZE_SHIFT) | \
+						  (0x7 << SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT))
+#define SI476X_DIGITAL_IO_OUTPUT_FORMAT_MASK	(0x7e)
+
+enum si476x_daudio_formats {
+	SI476X_DAUDIO_MODE_I2S		= (0x0 << 1),
+	SI476X_DAUDIO_MODE_DSP_A	= (0x6 << 1),
+	SI476X_DAUDIO_MODE_DSP_B	= (0x7 << 1),
+	SI476X_DAUDIO_MODE_LEFT_J	= (0x8 << 1),
+	SI476X_DAUDIO_MODE_RIGHT_J	= (0x9 << 1),
+
+	SI476X_DAUDIO_MODE_IB		= (1 << 5),
+	SI476X_DAUDIO_MODE_IF		= (1 << 6),
+};
+
+enum si476x_pcm_format {
+	SI476X_PCM_FORMAT_S8		= 2,
+	SI476X_PCM_FORMAT_S16_LE	= 4,
+	SI476X_PCM_FORMAT_S20_3LE	= 5,
+	SI476X_PCM_FORMAT_S24_LE	= 6,
+};
+
+static const struct snd_soc_dapm_widget si476x_dapm_widgets[] = {
+SND_SOC_DAPM_OUTPUT("LOUT"),
+SND_SOC_DAPM_OUTPUT("ROUT"),
+};
+
+static const struct snd_soc_dapm_route si476x_dapm_routes[] = {
+	{ "Capture", NULL, "LOUT" },
+	{ "Capture", NULL, "ROUT" },
+};
+
+static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai,
+				    unsigned int fmt)
+{
+	struct si476x_core *core = i2c_mfd_cell_to_core(codec_dai->dev);
+	int err;
+	u16 format = 0;
+
+	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
+		return -EINVAL;
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_DSP_A:
+		format |= SI476X_DAUDIO_MODE_DSP_A;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		format |= SI476X_DAUDIO_MODE_DSP_B;
+		break;
+	case SND_SOC_DAIFMT_I2S:
+		format |= SI476X_DAUDIO_MODE_I2S;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		format |= SI476X_DAUDIO_MODE_RIGHT_J;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		format |= SI476X_DAUDIO_MODE_LEFT_J;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_DSP_A:
+	case SND_SOC_DAIFMT_DSP_B:
+		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+		case SND_SOC_DAIFMT_NB_NF:
+			break;
+		case SND_SOC_DAIFMT_IB_NF:
+			format |= SI476X_DAUDIO_MODE_IB;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case SND_SOC_DAIFMT_I2S:
+	case SND_SOC_DAIFMT_RIGHT_J:
+	case SND_SOC_DAIFMT_LEFT_J:
+		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+		case SND_SOC_DAIFMT_NB_NF:
+			break;
+		case SND_SOC_DAIFMT_IB_IF:
+			format |= SI476X_DAUDIO_MODE_IB |
+				SI476X_DAUDIO_MODE_IF;
+			break;
+		case SND_SOC_DAIFMT_IB_NF:
+			format |= SI476X_DAUDIO_MODE_IB;
+			break;
+		case SND_SOC_DAIFMT_NB_IF:
+			format |= SI476X_DAUDIO_MODE_IF;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	si476x_core_lock(core);
+
+	err = snd_soc_component_update_bits(codec_dai->component, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
+				  SI476X_DIGITAL_IO_OUTPUT_FORMAT_MASK,
+				  format);
+
+	si476x_core_unlock(core);
+
+	if (err < 0) {
+		dev_err(codec_dai->component->dev, "Failed to set output format\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	struct si476x_core *core = i2c_mfd_cell_to_core(dai->dev);
+	int rate, width, err;
+
+	rate = params_rate(params);
+	if (rate < 32000 || rate > 48000) {
+		dev_err(dai->component->dev, "Rate: %d is not supported\n", rate);
+		return -EINVAL;
+	}
+
+	switch (params_width(params)) {
+	case 8:
+		width = SI476X_PCM_FORMAT_S8;
+		break;
+	case 16:
+		width = SI476X_PCM_FORMAT_S16_LE;
+		break;
+	case 20:
+		width = SI476X_PCM_FORMAT_S20_3LE;
+		break;
+	case 24:
+		width = SI476X_PCM_FORMAT_S24_LE;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	si476x_core_lock(core);
+
+	err = snd_soc_component_write(dai->component, SI476X_DIGITAL_IO_OUTPUT_SAMPLE_RATE,
+			    rate);
+	if (err < 0) {
+		dev_err(dai->component->dev, "Failed to set sample rate\n");
+		goto out;
+	}
+
+	err = snd_soc_component_update_bits(dai->component, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
+				  SI476X_DIGITAL_IO_OUTPUT_WIDTH_MASK,
+				  (width << SI476X_DIGITAL_IO_SLOT_SIZE_SHIFT) |
+				  (width << SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT));
+	if (err < 0) {
+		dev_err(dai->component->dev, "Failed to set output width\n");
+		goto out;
+	}
+
+out:
+	si476x_core_unlock(core);
+
+	return err;
+}
+
+static const struct snd_soc_dai_ops si476x_dai_ops = {
+	.hw_params	= si476x_codec_hw_params,
+	.set_fmt	= si476x_codec_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver si476x_dai = {
+	.name		= "si476x-codec",
+	.capture	= {
+		.stream_name	= "Capture",
+		.channels_min	= 2,
+		.channels_max	= 2,
+
+		.rates = SNDRV_PCM_RATE_32000 |
+		SNDRV_PCM_RATE_44100 |
+		SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S8 |
+		SNDRV_PCM_FMTBIT_S16_LE |
+		SNDRV_PCM_FMTBIT_S20_3LE |
+		SNDRV_PCM_FMTBIT_S24_LE
+	},
+	.ops		= &si476x_dai_ops,
+};
+
+static int si476x_probe(struct snd_soc_component *component)
+{
+	snd_soc_component_init_regmap(component,
+				dev_get_regmap(component->dev->parent, NULL));
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_si476x = {
+	.probe			= si476x_probe,
+	.dapm_widgets		= si476x_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(si476x_dapm_widgets),
+	.dapm_routes		= si476x_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(si476x_dapm_routes),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+	.non_legacy_dai_naming	= 1,
+};
+
+static int si476x_platform_probe(struct platform_device *pdev)
+{
+	return devm_snd_soc_register_component(&pdev->dev,
+				      &soc_component_dev_si476x,
+				      &si476x_dai, 1);
+}
+
+MODULE_ALIAS("platform:si476x-codec");
+
+static struct platform_driver si476x_platform_driver = {
+	.driver		= {
+		.name	= "si476x-codec",
+	},
+	.probe		= si476x_platform_probe,
+};
+module_platform_driver(si476x_platform_driver);
+
+MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
+MODULE_DESCRIPTION("ASoC Si4761/64 codec driver");
+MODULE_LICENSE("GPL");