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commit c92b3a90acddf7e513b5840c9a19e1aa8e1fb951
Author: Tiago Medicci Serrano <[email protected]>
AuthorDate: Mon Aug 21 10:31:51 2023 -0300

    esp32s3-devkit: Provide audio support for ESP32-S3-DevKitC-1
    
    Provide initial support for audio through the I2S peripheral to the
    CS4344 audio codec on ESP32-S3-DevKitC-1 board.
    
    Please check documentation for usage examples.
---
 boards/xtensa/esp32s3/common/src/Make.defs         |   8 ++
 .../xtensa/esp32s3/common/src/esp32s3_board_i2s.c  | 157 +++++++++++++++++++++
 boards/xtensa/esp32s3/common/src/esp32s3_cs4344.c  | 151 ++++++++++++++++++++
 .../esp32s3/esp32s3-devkit/configs/audio/defconfig | 104 ++++++++++++++
 .../esp32s3-devkit/configs/nxlooper/defconfig      |  79 +++++++++++
 .../esp32s3/esp32s3-devkit/src/esp32s3-devkit.h    |  45 ++++++
 .../esp32s3/esp32s3-devkit/src/esp32s3_bringup.c   |  70 +++++++++
 7 files changed, 614 insertions(+)

diff --git a/boards/xtensa/esp32s3/common/src/Make.defs 
b/boards/xtensa/esp32s3/common/src/Make.defs
index 2d0765410b..47196bf462 100644
--- a/boards/xtensa/esp32s3/common/src/Make.defs
+++ b/boards/xtensa/esp32s3/common/src/Make.defs
@@ -40,6 +40,14 @@ ifeq ($(CONFIG_I2C_DRIVER),y)
   CSRCS += esp32s3_board_i2c.c
 endif
 
+ifeq ($(CONFIG_ESP32S3_I2S),y)
+  CSRCS += esp32s3_board_i2s.c
+endif
+
+ifeq ($(CONFIG_AUDIO_CS4344),y)
+  CSRCS += esp32s3_cs4344.c
+endif
+
 ifeq ($(CONFIG_SENSORS_BMP180),y)
   CSRCS += esp32s3_board_bmp180.c
 endif
diff --git a/boards/xtensa/esp32s3/common/src/esp32s3_board_i2s.c 
b/boards/xtensa/esp32s3/common/src/esp32s3_board_i2s.c
new file mode 100644
index 0000000000..4ceffa9714
--- /dev/null
+++ b/boards/xtensa/esp32s3/common/src/esp32s3_board_i2s.c
@@ -0,0 +1,157 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/common/src/esp32s3_board_i2s.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/audio/audio.h>
+#include <nuttx/audio/audio_i2s.h>
+#include <nuttx/audio/i2s.h>
+#include <nuttx/audio/pcm.h>
+
+#include <arch/board/board.h>
+
+#include "esp32s3_i2s.h"
+
+#if (defined(CONFIG_ESP32S3_I2S0) && !defined(CONFIG_AUDIO_CS4344)) || \
+    defined(CONFIG_ESP32S3_I2S1)
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_i2sdev_initialize
+ *
+ * Description:
+ *   This function is called by platform-specific, setup logic to configure
+ *   and register the generic I2S audio driver.  This function will register
+ *   the driver as /dev/audio/pcm[x] where x is determined by the I2S port
+ *   number.
+ *
+ * Input Parameters:
+ *   port       - The I2S port used for the device
+ *   enable_tx  - Register device as TX if true
+ *   enable_rx  - Register device as RX if true
+ *
+ * Returned Value:
+ *   Zero is returned on success.  Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int board_i2sdev_initialize(int port, bool enable_tx, bool enable_rx)
+{
+  struct audio_lowerhalf_s *audio_i2s;
+  struct i2s_dev_s *i2s;
+  char devname[8];
+  int ret;
+
+  ainfo("Initializing I2S\n");
+
+  i2s = esp32s3_i2sbus_initialize(port);
+
+#ifdef CONFIG_AUDIO_I2SCHAR
+  ret = i2schar_register(i2s, port);
+  if (ret < 0)
+    {
+      aerr("ERROR: i2schar_register failed: %d\n", ret);
+      return ret;
+    }
+#endif
+
+  if (enable_tx)
+    {
+      /* Initialize audio output */
+
+      audio_i2s = audio_i2s_initialize(i2s, true);
+
+      if (audio_i2s == NULL)
+        {
+          auderr("ERROR: Failed to initialize I2S audio output\n");
+          return -ENODEV;
+        }
+
+      snprintf(devname, sizeof(devname), "pcm%d", port);
+
+      /* If nxlooper is selected, the playback buffer is not rendered as
+       * a WAV file. Therefore, PCM decode will fail while processing such
+       * output buffer. In such a case, we bypass the PCM decode.
+       */
+
+#ifdef CONFIG_SYSTEM_NXLOOPER
+      ret = audio_register(devname, audio_i2s);
+#else
+      struct audio_lowerhalf_s *pcm;
+
+      pcm = pcm_decode_initialize(audio_i2s);
+
+      if (pcm == NULL)
+        {
+          auderr("ERROR: Failed create the PCM decoder\n");
+          return -ENODEV;
+        }
+
+      ret = audio_register(devname, pcm);
+#endif /* CONFIG_SYSTEM_NXLOOPER */
+
+      if (ret < 0)
+        {
+          auderr("ERROR: Failed to register /dev/%s device: %d\n",
+                 devname, ret);
+          return ret;
+        }
+    }
+
+  if (enable_rx)
+    {
+      /* Initialize audio input */
+
+      audio_i2s = audio_i2s_initialize(i2s, false);
+
+      if (audio_i2s == NULL)
+        {
+          auderr("ERROR: Failed to initialize I2S audio input\n");
+          return -ENODEV;
+        }
+
+      snprintf(devname, sizeof(devname), "pcm_in%d", port);
+
+      ret = audio_register(devname, audio_i2s);
+
+      if (ret < 0)
+        {
+          auderr("ERROR: Failed to register /dev/%s device: %d\n",
+                 devname, ret);
+          return ret;
+        }
+    }
+
+  return ret;
+}
+
+#endif /* (CONFIG_ESP32S3_I2S) && !(CONFIG_AUDIO_CS4344) */
diff --git a/boards/xtensa/esp32s3/common/src/esp32s3_cs4344.c 
b/boards/xtensa/esp32s3/common/src/esp32s3_cs4344.c
new file mode 100644
index 0000000000..022a03c50d
--- /dev/null
+++ b/boards/xtensa/esp32s3/common/src/esp32s3_cs4344.c
@@ -0,0 +1,151 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/common/src/esp32s3_cs4344.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <nuttx/irq.h>
+#include <nuttx/audio/i2s.h>
+#include <nuttx/audio/pcm.h>
+#include <nuttx/audio/cs4344.h>
+
+#include <arch/board/board.h>
+
+#include "esp32s3_i2s.h"
+
+#if defined(CONFIG_ESP32S3_I2S) && defined(CONFIG_AUDIO_CS4344)
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32s3_cs4344_initialize
+ *
+ * Description:
+ *   This function is called by platform-specific, setup logic to configure
+ *   and register the CS4344 device.  This function will register the driver
+ *   as /dev/audio/pcm[x] where x is determined by the I2S port number.
+ *
+ * Input Parameters:
+ *   port - The I2S port used for the device
+ *
+ * Returned Value:
+ *   Zero is returned on success.  Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int esp32s3_cs4344_initialize(int port)
+{
+  struct audio_lowerhalf_s *cs4344;
+  struct audio_lowerhalf_s *pcm;
+  struct i2s_dev_s *i2s;
+  static bool initialized = false;
+  int ret;
+
+  /* Have we already initialized?  Since we are already initialized we must
+   * prevent multiple initializations.
+   */
+
+  if (!initialized)
+    {
+      /* Get an instance of the I2S interface for the CS4344 data channel */
+
+      i2s = esp32s3_i2sbus_initialize(port);
+      if (!i2s)
+        {
+          auderr("ERROR: Failed to initialize I2S%d\n", port);
+          ret = -ENODEV;
+          goto errout;
+        }
+
+      /* Check wheter to enable a simple character driver that supports I2S
+       * transfers via a read() and write().  The intent of this driver is to
+       * support I2S testing.  It is not an audio driver but does conform to
+       * some of the buffer management heuristics of an audio driver.  It is
+       * not suitable for use in any real driver application in its current
+       * form. The i2schar driver will be initialized at /dev/i2schar0
+       */
+
+#ifdef CONFIG_AUDIO_I2SCHAR
+      ret = i2schar_register(i2s, 0);
+      if (ret < 0)
+        {
+          auderr("ERROR: i2schar_register failed: %d\n", ret);
+          goto errout;
+        }
+#endif
+
+      /* Now we can use this I2S interface to initialize the CS4344 which
+       * will return an audio interface.
+       */
+
+      cs4344 = cs4344_initialize(i2s);
+      if (!cs4344)
+        {
+          auderr("ERROR: Failed to initialize the CS4344\n");
+          ret = -ENODEV;
+          goto errout;
+        }
+
+      /* No we can embed the CS4344/I2S conglomerate into a PCM decoder
+       * instance so that we will have a PCM front end for the the CS4344
+       * driver.
+       */
+
+      pcm = pcm_decode_initialize(cs4344);
+      if (!pcm)
+        {
+          auderr("ERROR: Failed create the PCM decoder\n");
+          ret = -ENODEV;
+          goto errout;
+        }
+
+      /* Finally, we can register the PCM/CS4344/I2S audio device */
+
+      ret = audio_register("pcm0", pcm);
+      if (ret < 0)
+        {
+          auderr("ERROR: Failed to register /dev/pcm0 device: %d\n", ret);
+          goto errout;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+
+errout:
+  return ret;
+}
+
+#endif /* CONFIG_ESP32S3_I2S && CONFIG_AUDIO_CS4344 */
diff --git a/boards/xtensa/esp32s3/esp32s3-devkit/configs/audio/defconfig 
b/boards/xtensa/esp32s3/esp32s3-devkit/configs/audio/defconfig
new file mode 100644
index 0000000000..dbb58ec8f4
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-devkit/configs/audio/defconfig
@@ -0,0 +1,104 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed 
.config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that 
includes your
+# modifications.
+#
+# CONFIG_ARCH_LEDS is not set
+# CONFIG_ESP32S3_I2S0_RX is not set
+# CONFIG_NDEBUG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ALLOW_BSD_COMPONENTS=y
+CONFIG_ARCH="xtensa"
+CONFIG_ARCH_BOARD="esp32s3-devkit"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32S3_DEVKIT=y
+CONFIG_ARCH_CHIP="esp32s3"
+CONFIG_ARCH_CHIP_ESP32S3=y
+CONFIG_ARCH_CHIP_ESP32S3WROOM1=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_XTENSA=y
+CONFIG_AUDIO=y
+CONFIG_AUDIO_CS4344=y
+CONFIG_AUDIO_EXCLUDE_BALANCE=y
+CONFIG_AUDIO_EXCLUDE_FFORWARD=y
+CONFIG_AUDIO_EXCLUDE_TONE=y
+CONFIG_AUDIO_EXCLUDE_VOLUME=y
+CONFIG_AUDIO_I2SCHAR=y
+CONFIG_AUDIO_NUM_BUFFERS=4
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_CS4344_INFLIGHT=4
+CONFIG_CS4344_NUM_BUFFERS=2
+CONFIG_CS4344_WORKER_STACKSIZE=2048
+CONFIG_DRIVERS_AUDIO=y
+CONFIG_DRIVERS_IEEE80211=y
+CONFIG_DRIVERS_WIRELESS=y
+CONFIG_ESP32S3_I2S0=y
+CONFIG_ESP32S3_I2S0_BCLKPIN=16
+CONFIG_ESP32S3_I2S0_DOUTPIN=6
+CONFIG_ESP32S3_I2S0_MCLK=y
+CONFIG_ESP32S3_I2S0_MCLKPIN=5
+CONFIG_ESP32S3_I2S0_WSPIN=7
+CONFIG_ESP32S3_I2S=y
+CONFIG_ESP32S3_SPIFLASH=y
+CONFIG_ESP32S3_SPIFLASH_SPIFFS=y
+CONFIG_ESP32S3_UART0=y
+CONFIG_ESP32S3_WIFI=y
+CONFIG_EXAMPLES_RANDOM=y
+CONFIG_FS_PROCFS=y
+CONFIG_I2S_DMADESC_NUM=4
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_IOB_NBUFFERS=124
+CONFIG_IOB_THROTTLE=24
+CONFIG_NETDB_DNSCLIENT=y
+CONFIG_NETDEV_LATEINIT=y
+CONFIG_NETDEV_PHY_IOCTL=y
+CONFIG_NETDEV_WIRELESS_IOCTL=y
+CONFIG_NETUTILS_CJSON=y
+CONFIG_NET_BROADCAST=y
+CONFIG_NET_ETH_PKTSIZE=1518
+CONFIG_NET_ICMP=y
+CONFIG_NET_ICMP_SOCKET=y
+CONFIG_NET_STATISTICS=y
+CONFIG_NET_TCP=y
+CONFIG_NET_TCP_DELAYED_ACK=y
+CONFIG_NET_TCP_WRITE_BUFFERS=y
+CONFIG_NET_UDP=y
+CONFIG_NET_UDP_WRITE_BUFFERS=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_NXPLAYER_HTTP_STREAMING_SUPPORT=y
+CONFIG_NXPLAYER_MAINTHREAD_STACKSIZE=4096
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PTHREAD_MUTEX_TYPES=y
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPIFFS_NAME_MAX=128
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSLOG_BUFFER=y
+CONFIG_SYSTEM_DHCPC_RENEW=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NXPLAYER=y
+CONFIG_SYSTEM_PING=y
+CONFIG_TIMER=y
+CONFIG_TLS_NELEM=4
+CONFIG_TLS_TASK_NELEM=4
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WIRELESS=y
+CONFIG_WIRELESS_WAPI=y
+CONFIG_WIRELESS_WAPI_CMDTOOL=y
+CONFIG_WIRELESS_WAPI_INITCONF=y
+CONFIG_WIRELESS_WAPI_STACKSIZE=4096
diff --git a/boards/xtensa/esp32s3/esp32s3-devkit/configs/nxlooper/defconfig 
b/boards/xtensa/esp32s3/esp32s3-devkit/configs/nxlooper/defconfig
new file mode 100644
index 0000000000..7c03746cd6
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-devkit/configs/nxlooper/defconfig
@@ -0,0 +1,79 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed 
.config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that 
includes your
+# modifications.
+#
+# CONFIG_ARCH_LEDS is not set
+# CONFIG_ESP32S3_I2S0_RX is not set
+# CONFIG_ESP32S3_I2S1_TX is not set
+# CONFIG_NDEBUG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ALLOW_BSD_COMPONENTS=y
+CONFIG_ARCH="xtensa"
+CONFIG_ARCH_BOARD="esp32s3-devkit"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32S3_DEVKIT=y
+CONFIG_ARCH_CHIP="esp32s3"
+CONFIG_ARCH_CHIP_ESP32S3=y
+CONFIG_ARCH_CHIP_ESP32S3WROOM1=y
+CONFIG_ARCH_INTERRUPTSTACK=4096
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_XTENSA=y
+CONFIG_AUDIO=y
+CONFIG_AUDIO_BUFFER_NUMBYTES=2048
+CONFIG_AUDIO_EXCLUDE_BALANCE=y
+CONFIG_AUDIO_EXCLUDE_FFORWARD=y
+CONFIG_AUDIO_EXCLUDE_TONE=y
+CONFIG_AUDIO_EXCLUDE_VOLUME=y
+CONFIG_AUDIO_I2S=y
+CONFIG_AUDIO_I2SCHAR=y
+CONFIG_AUDIO_NUM_BUFFERS=4
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_DRIVERS_AUDIO=y
+CONFIG_ESP32S3_I2S0=y
+CONFIG_ESP32S3_I2S0_BCLKPIN=16
+CONFIG_ESP32S3_I2S0_DOUTPIN=6
+CONFIG_ESP32S3_I2S0_MCLK=y
+CONFIG_ESP32S3_I2S0_MCLKPIN=5
+CONFIG_ESP32S3_I2S0_WSPIN=7
+CONFIG_ESP32S3_I2S1=y
+CONFIG_ESP32S3_I2S1_BCLKPIN=18
+CONFIG_ESP32S3_I2S1_DINPIN=15
+CONFIG_ESP32S3_I2S1_ROLE_SLAVE=y
+CONFIG_ESP32S3_I2S1_WSPIN=17
+CONFIG_ESP32S3_I2S=y
+CONFIG_ESP32S3_UART0=y
+CONFIG_FS_LARGEFILE=y
+CONFIG_FS_PROCFS=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_I2S_DMADESC_NUM=4
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_NXLOOPER_LOOPTHREAD_STACKSIZE=4096
+CONFIG_NXLOOPER_MAINTHREAD_STACKSIZE=4096
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PTHREAD_MUTEX_TYPES=y
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SIG_DEFAULT=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSLOG_BUFFER=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NXLOOPER=y
+CONFIG_TIMER=y
+CONFIG_UART0_SERIAL_CONSOLE=y
diff --git a/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3-devkit.h 
b/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3-devkit.h
index 4c722b6e07..31257b5ebf 100644
--- a/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3-devkit.h
+++ b/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3-devkit.h
@@ -121,6 +121,51 @@ int board_i2c_init(void);
 int board_bmp180_initialize(int devno, int busno);
 #endif
 
+/****************************************************************************
+ * Name: board_i2sdev_initialize
+ *
+ * Description:
+ *   This function is called by platform-specific, setup logic to configure
+ *   and register the generic I2S audio driver.  This function will register
+ *   the driver as /dev/audio/pcm[x] where x is determined by the I2S port
+ *   number.
+ *
+ * Input Parameters:
+ *   port       - The I2S port used for the device
+ *   enable_tx  - Register device as TX if true
+ *   enable_rx  - Register device as RX if true
+ *
+ * Returned Value:
+ *   Zero is returned on success.  Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ESP32S3_I2S
+int board_i2sdev_initialize(int port, bool enable_tx, bool enable_rx);
+#endif
+
+/****************************************************************************
+ * Name: esp32s3_cs4344_initialize
+ *
+ * Description:
+ *   This function is called by platform-specific, setup logic to configure
+ *   and register the CS4344 device.  This function will register the driver
+ *   as /dev/audio/pcm[x] where x is determined by the I2S port number.
+ *
+ * Input Parameters:
+ *   port - The I2S port used for the device
+ *
+ * Returned Value:
+ *   Zero is returned on success.  Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_AUDIO_CS4344
+int esp32s3_cs4344_initialize(int port);
+#endif
+
 /****************************************************************************
  * Name: esp32s3_djoy_initialize
  *
diff --git a/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c 
b/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c
index b05512a120..d6853d4f00 100644
--- a/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c
+++ b/boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c
@@ -62,6 +62,10 @@
 #  include "esp32s3_i2c.h"
 #endif
 
+#ifdef CONFIG_ESP32S3_I2S
+#  include "esp32s3_i2s.h"
+#endif
+
 #ifdef CONFIG_WATCHDOG
 #  include "esp32s3_board_wdt.h"
 #endif
@@ -109,6 +113,11 @@
 int esp32s3_bringup(void)
 {
   int ret;
+#if (defined(CONFIG_ESP32S3_I2S0) && !defined(CONFIG_AUDIO_CS4344)) || \
+    defined(CONFIG_ESP32S3_I2S1)
+  bool i2s_enable_tx;
+  bool i2s_enable_rx;
+#endif
 
 #if defined(CONFIG_ESP32S3_EFUSE)
   ret = esp32s3_efuse_initialize("/dev/efuse");
@@ -207,6 +216,67 @@ int esp32s3_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_ESP32S3_I2S
+
+#ifdef CONFIG_AUDIO_CS4344
+
+  /* Configure CS4344 audio on I2S0 */
+
+  ret = esp32s3_cs4344_initialize(ESP32S3_I2S0);
+  if (ret != OK)
+    {
+      syslog(LOG_ERR, "Failed to initialize CS4344 audio: %d\n", ret);
+    }
+#else
+
+#ifdef CONFIG_ESP32S3_I2S0_TX
+  i2s_enable_tx = true;
+#else
+  i2s_enable_tx = false;
+#endif /* CONFIG_ESP32S3_I2S0_TX */
+
+#ifdef CONFIG_ESP32S3_I2S0_RX
+  i2s_enable_rx = true;
+#else
+  i2s_enable_rx = false;
+#endif /* CONFIG_ESP32S3_I2S0_RX */
+
+  /* Configure I2S generic audio on I2S0 */
+
+  ret = board_i2sdev_initialize(ESP32S3_I2S0, i2s_enable_tx, i2s_enable_rx);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "Failed to initialize I2S0 driver: %d\n", ret);
+    }
+#endif /* CONFIG_AUDIO_CS4344 */
+
+#ifdef CONFIG_ESP32S3_I2S1
+
+#ifdef CONFIG_ESP32S3_I2S1_TX
+  i2s_enable_tx = true;
+#else
+  i2s_enable_tx = false;
+#endif /* CONFIG_ESP32S3_I2S1_TX */
+
+#ifdef CONFIG_ESP32S3_I2S1_RX
+  i2s_enable_rx = true;
+#else
+  i2s_enable_rx = false;
+#endif /* CONFIG_ESP32S3_I2S1_RX */
+
+  /* Configure I2S generic audio on I2S1 */
+
+  ret = board_i2sdev_initialize(ESP32S3_I2S1, i2s_enable_tx, i2s_enable_rx);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "Failed to initialize I2S%d driver: %d\n",
+             CONFIG_ESP32S3_I2S1, ret);
+    }
+
+#endif  /* CONFIG_ESP32S3_I2S1 */
+
+#endif /* CONFIG_ESP32S3_I2S */
+
 #ifdef CONFIG_INPUT_BUTTONS
   /* Register the BUTTON driver */
 

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