+++ /dev/null
-From c667b06f616d5dec68469ac73764abd5bcb1d694 Mon Sep 17 00:00:00 2001
-From: FERHAT Nicolas <contact@audiophonics.fr>
-Date: Fri, 5 Apr 2019 13:06:42 +0100
-Subject: [PATCH] Audiophonics I-Sabre 9038Q2M DAC driver
-
-Signed-off-by: Audiophonics <contact@audiophonics.fr>
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 6 +
- .../boot/dts/overlays/i-sabre-q2m-overlay.dts | 39 ++
- sound/soc/bcm/Kconfig | 7 +
- sound/soc/bcm/Makefile | 2 +
- sound/soc/bcm/i-sabre-q2m.c | 157 +++++++
- sound/soc/codecs/Kconfig | 5 +
- sound/soc/codecs/Makefile | 2 +
- sound/soc/codecs/i-sabre-codec.c | 392 ++++++++++++++++++
- sound/soc/codecs/i-sabre-codec.h | 42 ++
- 13 files changed, 656 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts
- create mode 100644 sound/soc/bcm/i-sabre-q2m.c
- create mode 100644 sound/soc/codecs/i-sabre-codec.c
- create mode 100644 sound/soc/codecs/i-sabre-codec.h
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -55,6 +55,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- hy28a.dtbo \
- hy28b.dtbo \
- hy28b-2017.dtbo \
-+ i-sabre-q2m.dtbo \
- i2c-bcm2708.dtbo \
- i2c-gpio.dtbo \
- i2c-mux.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -869,6 +869,12 @@ Params: speed Display
- ledgpio GPIO used to control backlight
-
-
-+Name: i-sabre-q2m
-+Info: Configures the Audiophonics I-SABRE Q2M DAC
-+Load: dtoverlay=i-sabre-q2m
-+Params: <None>
-+
-+
- Name: i2c-bcm2708
- Info: Fall back to the i2c_bcm2708 driver for the i2c_arm bus.
- Load: dtoverlay=i2c-bcm2708
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts
-@@ -0,0 +1,39 @@
-+// Definitions for I-Sabre Q2M
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2708";
-+
-+ fragment@0 {
-+ target = <&sound>;
-+ frag0: __overlay__ {
-+ compatible = "audiophonics,i-sabre-q2m";
-+ i2s-controller = <&i2s>;
-+ status = "okay";
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&i2s>;
-+ __overlay__ {
-+ status = "okay";
-+ };
-+ };
-+
-+ fragment@2 {
-+ target = <&i2c1>;
-+ __overlay__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ i-sabre-codec@48 {
-+ #sound-dai-cells = <0>;
-+ compatible = "audiophonics,i-sabre-codec";
-+ reg = <0x48>;
-+ status = "okay";
-+ };
-+ };
-+ };
-+};
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -123,6 +123,13 @@ config SND_BCM2708_SOC_IQAUDIO_DIGI
- help
- Say Y or M if you want to add support for IQAudIO Digital IO board.
-
-+config SND_BCM2708_SOC_I_SABRE_Q2M
-+ tristate "Support for Audiophonics I-Sabre Q2M DAC"
-+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-+ select SND_SOC_I_SABRE_CODEC
-+ help
-+ Say Y or M if you want to add support for Audiophonics I-SABRE Q2M DAC
-+
- config SND_BCM2708_SOC_ADAU1977_ADC
- tristate "Support for ADAU1977 ADC"
- depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
---- a/sound/soc/bcm/Makefile
-+++ b/sound/soc/bcm/Makefile
-@@ -19,6 +19,7 @@ snd-soc-justboom-dac-objs := justboom-da
- snd-soc-rpi-cirrus-objs := rpi-cirrus.o
- snd-soc-rpi-proto-objs := rpi-proto.o
- snd-soc-iqaudio-dac-objs := iqaudio-dac.o
-+ snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
- snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
- snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o
- snd-soc-audiosense-pi-objs := audiosense-pi.o
-@@ -42,6 +43,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DA
- obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o
- obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
- obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
-+ obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
- obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
- obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o
- obj-$(CONFIG_SND_AUDIOSENSE_PI) += snd-soc-audiosense-pi.o
---- /dev/null
-+++ b/sound/soc/bcm/i-sabre-q2m.c
-@@ -0,0 +1,157 @@
-+/*
-+ * ASoC Driver for I-Sabre Q2M
-+ *
-+ * Author: Satoru Kawase
-+ * Modified by: Xiao Qingyong
-+ * Update kernel v4.18+ by : Audiophonics
-+ * Copyright 2018 Audiophonics
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * 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/kernel.h>
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/delay.h>
-+#include <linux/fs.h>
-+#include <asm/uaccess.h>
-+#include <sound/core.h>
-+#include <sound/soc.h>
-+#include <sound/pcm.h>
-+#include <sound/pcm_params.h>
-+
-+#include "../codecs/i-sabre-codec.h"
-+
-+
-+static int snd_rpi_i_sabre_q2m_init(struct snd_soc_pcm_runtime *rtd)
-+{
-+ struct snd_soc_component *component = rtd->codec_dai->component;
-+ unsigned int value;
-+
-+ /* Device ID */
-+ value = snd_soc_component_read32(component, ISABRECODEC_REG_01);
-+ dev_info(component->card->dev, "Audiophonics Device ID : %02X\n", value);
-+
-+ /* API revision */
-+ value = snd_soc_component_read32(component, ISABRECODEC_REG_02);
-+ dev_info(component->card->dev, "Audiophonics API revision : %02X\n", value);
-+
-+ return 0;
-+}
-+
-+static int snd_rpi_i_sabre_q2m_hw_params(
-+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
-+{
-+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-+ int bclk_ratio;
-+
-+ bclk_ratio = snd_pcm_format_physical_width(
-+ params_format(params)) * params_channels(params);
-+ return snd_soc_dai_set_bclk_ratio(cpu_dai, bclk_ratio);
-+}
-+
-+/* machine stream operations */
-+static struct snd_soc_ops snd_rpi_i_sabre_q2m_ops = {
-+ .hw_params = snd_rpi_i_sabre_q2m_hw_params,
-+};
-+
-+
-+static struct snd_soc_dai_link snd_rpi_i_sabre_q2m_dai[] = {
-+ {
-+ .name = "I-Sabre Q2M",
-+ .stream_name = "I-Sabre Q2M DAC",
-+ .cpu_dai_name = "bcm2708-i2s.0",
-+ .codec_dai_name = "i-sabre-codec-dai",
-+ .platform_name = "bcm2708-i2s.0",
-+ .codec_name = "i-sabre-codec-i2c.1-0048",
-+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
-+ | SND_SOC_DAIFMT_CBS_CFS,
-+ .init = snd_rpi_i_sabre_q2m_init,
-+ .ops = &snd_rpi_i_sabre_q2m_ops,
-+ }
-+};
-+
-+/* audio machine driver */
-+static struct snd_soc_card snd_rpi_i_sabre_q2m = {
-+ .name = "I-Sabre Q2M DAC",
-+ .owner = THIS_MODULE,
-+ .dai_link = snd_rpi_i_sabre_q2m_dai,
-+ .num_links = ARRAY_SIZE(snd_rpi_i_sabre_q2m_dai)
-+};
-+
-+
-+static int snd_rpi_i_sabre_q2m_probe(struct platform_device *pdev)
-+{
-+ int ret = 0;
-+
-+ snd_rpi_i_sabre_q2m.dev = &pdev->dev;
-+ if (pdev->dev.of_node) {
-+ struct device_node *i2s_node;
-+ struct snd_soc_dai_link *dai;
-+
-+ dai = &snd_rpi_i_sabre_q2m_dai[0];
-+ i2s_node = of_parse_phandle(pdev->dev.of_node,
-+ "i2s-controller", 0);
-+ if (i2s_node) {
-+ dai->cpu_dai_name = NULL;
-+ dai->cpu_of_node = i2s_node;
-+ dai->platform_name = NULL;
-+ dai->platform_of_node = i2s_node;
-+ } else {
-+ dev_err(&pdev->dev,
-+ "Property 'i2s-controller' missing or invalid\n");
-+ return (-EINVAL);
-+ }
-+
-+ dai->name = "I-Sabre Q2M";
-+ dai->stream_name = "I-Sabre Q2M DAC";
-+ dai->dai_fmt = SND_SOC_DAIFMT_I2S
-+ | SND_SOC_DAIFMT_NB_NF
-+ | SND_SOC_DAIFMT_CBS_CFS;
-+ }
-+
-+ /* Wait for registering codec driver */
-+ mdelay(50);
-+
-+ ret = snd_soc_register_card(&snd_rpi_i_sabre_q2m);
-+ if (ret) {
-+ dev_err(&pdev->dev,
-+ "snd_soc_register_card() failed: %d\n", ret);
-+ }
-+
-+ return ret;
-+}
-+
-+static int snd_rpi_i_sabre_q2m_remove(struct platform_device *pdev)
-+{
-+ return snd_soc_unregister_card(&snd_rpi_i_sabre_q2m);
-+}
-+
-+static const struct of_device_id snd_rpi_i_sabre_q2m_of_match[] = {
-+ { .compatible = "audiophonics,i-sabre-q2m", },
-+ {}
-+};
-+MODULE_DEVICE_TABLE(of, snd_rpi_i_sabre_q2m_of_match);
-+
-+static struct platform_driver snd_rpi_i_sabre_q2m_driver = {
-+ .driver = {
-+ .name = "snd-rpi-i-sabre-q2m",
-+ .owner = THIS_MODULE,
-+ .of_match_table = snd_rpi_i_sabre_q2m_of_match,
-+ },
-+ .probe = snd_rpi_i_sabre_q2m_probe,
-+ .remove = snd_rpi_i_sabre_q2m_remove,
-+};
-+module_platform_driver(snd_rpi_i_sabre_q2m_driver);
-+
-+MODULE_DESCRIPTION("ASoC Driver for I-Sabre Q2M");
-+MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
-+MODULE_LICENSE("GPL");
---- a/sound/soc/codecs/Kconfig
-+++ b/sound/soc/codecs/Kconfig
-@@ -85,6 +85,7 @@ config SND_SOC_ALL_CODECS
- select SND_SOC_ICS43432
- select SND_SOC_INNO_RK3036
- select SND_SOC_ISABELLE if I2C
-+ select SND_SOC_I_SABRE_CODEC if I2C
- select SND_SOC_JZ4740_CODEC
- select SND_SOC_LM4857 if I2C
- select SND_SOC_LM49453 if I2C
-@@ -1322,4 +1323,8 @@ config SND_SOC_TPA6130A2
- tristate "Texas Instruments TPA6130A2 headphone amplifier"
- depends on I2C
-
-+config SND_SOC_I_SABRE_CODEC
-+ tristate "Audiophonics I-SABRE Codec"
-+ depends on I2C
-+
- endmenu
---- a/sound/soc/codecs/Makefile
-+++ b/sound/soc/codecs/Makefile
-@@ -81,6 +81,7 @@ snd-soc-hdac-hdmi-objs := hdac_hdmi.o
- snd-soc-ics43432-objs := ics43432.o
- snd-soc-inno-rk3036-objs := inno_rk3036.o
- snd-soc-isabelle-objs := isabelle.o
-+snd-soc-i-sabre-codec-objs := i-sabre-codec.o
- snd-soc-jz4740-codec-objs := jz4740.o
- snd-soc-l3-objs := l3.o
- snd-soc-lm4857-objs := lm4857.o
-@@ -343,6 +344,7 @@ obj-$(CONFIG_SND_SOC_HDAC_HDMI) += snd-s
- obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o
- obj-$(CONFIG_SND_SOC_INNO_RK3036) += snd-soc-inno-rk3036.o
- obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o
-+obj-$(CONFIG_SND_SOC_I_SABRE_CODEC) += snd-soc-i-sabre-codec.o
- obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o
- obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o
- obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o
---- /dev/null
-+++ b/sound/soc/codecs/i-sabre-codec.c
-@@ -0,0 +1,392 @@
-+/*
-+ * Driver for I-Sabre Q2M
-+ *
-+ * Author: Satoru Kawase
-+ * Modified by: Xiao Qingyong
-+ * Modified by: JC BARBAUD (Mute)
-+ * Update kernel v4.18+ by : Audiophonics
-+ * Copyright 2018 Audiophonics
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * 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/init.h>
-+#include <linux/module.h>
-+#include <linux/regmap.h>
-+#include <linux/i2c.h>
-+#include <sound/soc.h>
-+#include <sound/pcm_params.h>
-+#include <sound/tlv.h>
-+
-+#include "i-sabre-codec.h"
-+
-+
-+/* I-Sabre Q2M Codec Private Data */
-+struct i_sabre_codec_priv {
-+ struct regmap *regmap;
-+ unsigned int fmt;
-+};
-+
-+
-+/* I-Sabre Q2M Codec Default Register Value */
-+static const struct reg_default i_sabre_codec_reg_defaults[] = {
-+ { ISABRECODEC_REG_10, 0x00 },
-+ { ISABRECODEC_REG_20, 0x00 },
-+ { ISABRECODEC_REG_21, 0x00 },
-+ { ISABRECODEC_REG_22, 0x00 },
-+ { ISABRECODEC_REG_24, 0x00 },
-+};
-+
-+
-+static bool i_sabre_codec_writeable(struct device *dev, unsigned int reg)
-+{
-+ switch (reg) {
-+ case ISABRECODEC_REG_10:
-+ case ISABRECODEC_REG_20:
-+ case ISABRECODEC_REG_21:
-+ case ISABRECODEC_REG_22:
-+ case ISABRECODEC_REG_24:
-+ return true;
-+
-+ default:
-+ return false;
-+ }
-+}
-+
-+static bool i_sabre_codec_readable(struct device *dev, unsigned int reg)
-+{
-+ switch (reg) {
-+ case ISABRECODEC_REG_01:
-+ case ISABRECODEC_REG_02:
-+ case ISABRECODEC_REG_10:
-+ case ISABRECODEC_REG_20:
-+ case ISABRECODEC_REG_21:
-+ case ISABRECODEC_REG_22:
-+ case ISABRECODEC_REG_24:
-+ return true;
-+
-+ default:
-+ return false;
-+ }
-+}
-+
-+static bool i_sabre_codec_volatile(struct device *dev, unsigned int reg)
-+{
-+ switch (reg) {
-+ case ISABRECODEC_REG_01:
-+ case ISABRECODEC_REG_02:
-+ return true;
-+
-+ default:
-+ return false;
-+ }
-+}
-+
-+
-+/* Volume Scale */
-+static const DECLARE_TLV_DB_SCALE(volume_tlv, -10000, 100, 0);
-+
-+
-+/* Filter Type */
-+static const char * const fir_filter_type_texts[] = {
-+ "brick wall",
-+ "corrected minimum phase fast",
-+ "minimum phase slow",
-+ "minimum phase fast",
-+ "linear phase slow",
-+ "linear phase fast",
-+ "apodizing fast",
-+};
-+
-+static SOC_ENUM_SINGLE_DECL(i_sabre_fir_filter_type_enum,
-+ ISABRECODEC_REG_22, 0, fir_filter_type_texts);
-+
-+
-+/* I2S / SPDIF Select */
-+static const char * const iis_spdif_sel_texts[] = {
-+ "I2S",
-+ "SPDIF",
-+};
-+
-+static SOC_ENUM_SINGLE_DECL(i_sabre_iis_spdif_sel_enum,
-+ ISABRECODEC_REG_24, 0, iis_spdif_sel_texts);
-+
-+
-+/* Control */
-+static const struct snd_kcontrol_new i_sabre_codec_controls[] = {
-+SOC_SINGLE_RANGE_TLV("Digital Playback Volume", ISABRECODEC_REG_20, 0, 0, 100, 1, volume_tlv),
-+SOC_SINGLE("Digital Playback Switch", ISABRECODEC_REG_21, 0, 1, 1),
-+SOC_ENUM("FIR Filter Type", i_sabre_fir_filter_type_enum),
-+SOC_ENUM("I2S/SPDIF Select", i_sabre_iis_spdif_sel_enum),
-+};
-+
-+
-+static const u32 i_sabre_codec_dai_rates_slave[] = {
-+ 8000, 11025, 16000, 22050, 32000,
-+ 44100, 48000, 64000, 88200, 96000,
-+ 176400, 192000, 352800, 384000,
-+ 705600, 768000, 1411200, 1536000
-+};
-+
-+static const struct snd_pcm_hw_constraint_list constraints_slave = {
-+ .list = i_sabre_codec_dai_rates_slave,
-+ .count = ARRAY_SIZE(i_sabre_codec_dai_rates_slave),
-+};
-+
-+static int i_sabre_codec_dai_startup_slave(
-+ struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
-+{
-+ struct snd_soc_component *component = dai->component;
-+ int ret;
-+
-+ ret = snd_pcm_hw_constraint_list(substream->runtime,
-+ 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_slave);
-+ if (ret != 0) {
-+ dev_err(component->card->dev, "Failed to setup rates constraints: %d\n", ret);
-+ }
-+
-+ return ret;
-+}
-+
-+static int i_sabre_codec_dai_startup(
-+ struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
-+{
-+ struct snd_soc_component *component = dai->component;
-+ struct i_sabre_codec_priv *i_sabre_codec
-+ = snd_soc_component_get_drvdata(component);
-+
-+ switch (i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-+ case SND_SOC_DAIFMT_CBS_CFS:
-+ return i_sabre_codec_dai_startup_slave(substream, dai);
-+
-+ default:
-+ return (-EINVAL);
-+ }
-+}
-+
-+static int i_sabre_codec_hw_params(
-+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params,
-+ struct snd_soc_dai *dai)
-+{
-+ struct snd_soc_component *component = dai->component;
-+ struct i_sabre_codec_priv *i_sabre_codec
-+ = snd_soc_component_get_drvdata(component);
-+ unsigned int daifmt;
-+ int format_width;
-+
-+ dev_dbg(component->card->dev, "hw_params %u Hz, %u channels\n",
-+ params_rate(params), params_channels(params));
-+
-+ /* Check I2S Format (Bit Size) */
-+ format_width = snd_pcm_format_width(params_format(params));
-+ if ((format_width != 32) && (format_width != 16)) {
-+ dev_err(component->card->dev, "Bad frame size: %d\n",
-+ snd_pcm_format_width(params_format(params)));
-+ return (-EINVAL);
-+ }
-+
-+ /* Check Slave Mode */
-+ daifmt = i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK;
-+ if (daifmt != SND_SOC_DAIFMT_CBS_CFS) {
-+ return (-EINVAL);
-+ }
-+
-+ /* Notify Sampling Frequency */
-+ switch (params_rate(params))
-+ {
-+ case 44100:
-+ case 48000:
-+ case 88200:
-+ case 96000:
-+ case 176400:
-+ case 192000:
-+ snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x00);
-+ break;
-+
-+ case 352800:
-+ case 384000:
-+ case 705600:
-+ case 768000:
-+ case 1411200:
-+ case 1536000:
-+ snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x01);
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+static int i_sabre_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
-+{
-+ struct snd_soc_component *component = dai->component;
-+ struct i_sabre_codec_priv *i_sabre_codec
-+ = snd_soc_component_get_drvdata(component);
-+
-+ /* interface format */
-+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
-+ case SND_SOC_DAIFMT_I2S:
-+ break;
-+
-+ case SND_SOC_DAIFMT_RIGHT_J:
-+ case SND_SOC_DAIFMT_LEFT_J:
-+ default:
-+ return (-EINVAL);
-+ }
-+
-+ /* clock inversion */
-+ if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
-+ return (-EINVAL);
-+ }
-+
-+ /* Set Audio Data Format */
-+ i_sabre_codec->fmt = fmt;
-+
-+ return 0;
-+}
-+
-+static int i_sabre_codec_dac_mute(struct snd_soc_dai *dai, int mute)
-+{
-+ struct snd_soc_component *component = dai->component;
-+
-+ if (mute) {
-+ snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x01);
-+ } else {
-+ snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x00);
-+ }
-+
-+ return 0;
-+}
-+
-+
-+static const struct snd_soc_dai_ops i_sabre_codec_dai_ops = {
-+ .startup = i_sabre_codec_dai_startup,
-+ .hw_params = i_sabre_codec_hw_params,
-+ .set_fmt = i_sabre_codec_set_fmt,
-+ .digital_mute = i_sabre_codec_dac_mute,
-+};
-+
-+static struct snd_soc_dai_driver i_sabre_codec_dai = {
-+ .name = "i-sabre-codec-dai",
-+ .playback = {
-+ .stream_name = "Playback",
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
-+ .rate_min = 8000,
-+ .rate_max = 1536000,
-+ .formats = SNDRV_PCM_FMTBIT_S16_LE
-+ | SNDRV_PCM_FMTBIT_S32_LE,
-+ },
-+ .ops = &i_sabre_codec_dai_ops,
-+};
-+
-+static struct snd_soc_component_driver i_sabre_codec_codec_driver = {
-+ .controls = i_sabre_codec_controls,
-+ .num_controls = ARRAY_SIZE(i_sabre_codec_controls),
-+};
-+
-+
-+static const struct regmap_config i_sabre_codec_regmap = {
-+ .reg_bits = 8,
-+ .val_bits = 8,
-+ .max_register = ISABRECODEC_MAX_REG,
-+
-+ .reg_defaults = i_sabre_codec_reg_defaults,
-+ .num_reg_defaults = ARRAY_SIZE(i_sabre_codec_reg_defaults),
-+
-+ .writeable_reg = i_sabre_codec_writeable,
-+ .readable_reg = i_sabre_codec_readable,
-+ .volatile_reg = i_sabre_codec_volatile,
-+
-+ .cache_type = REGCACHE_RBTREE,
-+};
-+
-+
-+static int i_sabre_codec_probe(struct device *dev, struct regmap *regmap)
-+{
-+ struct i_sabre_codec_priv *i_sabre_codec;
-+ int ret;
-+
-+ i_sabre_codec = devm_kzalloc(dev, sizeof(*i_sabre_codec), GFP_KERNEL);
-+ if (!i_sabre_codec) {
-+ dev_err(dev, "devm_kzalloc");
-+ return (-ENOMEM);
-+ }
-+
-+ i_sabre_codec->regmap = regmap;
-+
-+ dev_set_drvdata(dev, i_sabre_codec);
-+
-+ ret = snd_soc_register_component(dev,
-+ &i_sabre_codec_codec_driver, &i_sabre_codec_dai, 1);
-+ if (ret != 0) {
-+ dev_err(dev, "Failed to register CODEC: %d\n", ret);
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+static void i_sabre_codec_remove(struct device *dev)
-+{
-+ snd_soc_unregister_component(dev);
-+}
-+
-+
-+static int i_sabre_codec_i2c_probe(
-+ struct i2c_client *i2c, const struct i2c_device_id *id)
-+{
-+ struct regmap *regmap;
-+
-+ regmap = devm_regmap_init_i2c(i2c, &i_sabre_codec_regmap);
-+ if (IS_ERR(regmap)) {
-+ return PTR_ERR(regmap);
-+ }
-+
-+ return i_sabre_codec_probe(&i2c->dev, regmap);
-+}
-+
-+static int i_sabre_codec_i2c_remove(struct i2c_client *i2c)
-+{
-+ i_sabre_codec_remove(&i2c->dev);
-+
-+ return 0;
-+}
-+
-+
-+static const struct i2c_device_id i_sabre_codec_i2c_id[] = {
-+ { "i-sabre-codec", },
-+ { }
-+};
-+MODULE_DEVICE_TABLE(i2c, i_sabre_codec_i2c_id);
-+
-+static const struct of_device_id i_sabre_codec_of_match[] = {
-+ { .compatible = "audiophonics,i-sabre-codec", },
-+ { }
-+};
-+MODULE_DEVICE_TABLE(of, i_sabre_codec_of_match);
-+
-+static struct i2c_driver i_sabre_codec_i2c_driver = {
-+ .driver = {
-+ .name = "i-sabre-codec-i2c",
-+ .owner = THIS_MODULE,
-+ .of_match_table = of_match_ptr(i_sabre_codec_of_match),
-+ },
-+ .probe = i_sabre_codec_i2c_probe,
-+ .remove = i_sabre_codec_i2c_remove,
-+ .id_table = i_sabre_codec_i2c_id,
-+};
-+module_i2c_driver(i_sabre_codec_i2c_driver);
-+
-+
-+MODULE_DESCRIPTION("ASoC I-Sabre Q2M codec driver");
-+MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/sound/soc/codecs/i-sabre-codec.h
-@@ -0,0 +1,42 @@
-+/*
-+ * Driver for I-Sabre Q2M
-+ *
-+ * Author: Satoru Kawase
-+ * Modified by: Xiao Qingyong
-+ * Copyright 2018 Audiophonics
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * 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.
-+ */
-+
-+#ifndef _SND_SOC_ISABRECODEC
-+#define _SND_SOC_ISABRECODEC
-+
-+
-+/* ISABRECODEC Register Address */
-+#define ISABRECODEC_REG_01 0x01 /* Virtual Device ID : 0x01 = es9038q2m */
-+#define ISABRECODEC_REG_02 0x02 /* API revision : 0x01 = Revision 01 */
-+#define ISABRECODEC_REG_10 0x10 /* 0x01 = above 192kHz, 0x00 = otherwise */
-+#define ISABRECODEC_REG_20 0x20 /* 0 - 100 (decimal value, 0 = min., 100 = max.) */
-+#define ISABRECODEC_REG_21 0x21 /* 0x00 = Mute OFF, 0x01 = Mute ON */
-+#define ISABRECODEC_REG_22 0x22
-+/*
-+ 0x00 = brick wall,
-+ 0x01 = corrected minimum phase fast,
-+ 0x02 = minimum phase slow,
-+ 0x03 = minimum phase fast,
-+ 0x04 = linear phase slow,
-+ 0x05 = linear phase fast,
-+ 0x06 = apodizing fast,
-+*/
-+//#define ISABRECODEC_REG_23 0x23 /* reserved */
-+#define ISABRECODEC_REG_24 0x24 /* 0x00 = I2S, 0x01 = SPDIF */
-+#define ISABRECODEC_MAX_REG 0x24 /* Maximum Register Number */
-+
-+#endif /* _SND_SOC_ISABRECODEC */
projects / openwrt / openwrt.git / blobdiff