xtensa/esp32s3: Add USB OTG device driver

arch/xtensa/src/esp32s3/Kconfig

@@ -390,6 +390,10 @@ config ESP32S3_USBSERIAL
 	select OTHER_UART_SERIALDRIVER
 	select ARCH_HAVE_SERIAL_TERMIOS
 
+config ESP32S3_OTG
+	bool "USB OTG"
+	default n
+
 config ESP32S3_TIMER0
 	bool "54-bit Timer 0 (Group 0 Timer 0)"
 	default n
@@ -1216,6 +1220,35 @@ config ESP32S3_LEDC_CHANNEL7_PIN
 
 endmenu # LEDC configuration
 
+menu "USB OTG Configuration"
+	depends on ESP32S3_OTG
+
+choice
+	prompt "USB OTG Mode"
+	default ESP32S3_OTG_DEVICE
+
+config ESP32S3_OTG_DEVICE
+	bool "Device"
+	select USBDEV
+
+endchoice # USB OTG Mode
+
+if ESP32S3_OTG_DEVICE
+
+config ESP32S3_OTG_ENDPOINT_NUM
+	int "Additional Endpoint Number Except Endpoint 0"
+	range 0 6
+	default 3
+
+endif # ESP32S3_OTG_DEVICE
+
+config ESP32S3_OTG_DEBUG_REGISTER
+	bool "Debug Register Get/Set"
+	default n
+	depends on DEBUG_USB_INFO
+
+endmenu # USB OTG Configuration
+
 menu "Application Image Configuration"
 
 choice

arch/xtensa/src/esp32s3/Make.defs

@@ -135,6 +135,10 @@ ifeq ($(CONFIG_ESP32S3_TOUCH),y)
 CHIP_CSRCS += esp32s3_touch.c
 endif
 
+ifeq ($(CONFIG_ESP32S3_OTG_DEVICE),y)
+CHIP_CSRCS += esp32s3_otg_device.c
+endif
+
 ifeq ($(CONFIG_ESP32S3_WIRELESS),y)
 include chip/Wireless.mk
 endif

arch/xtensa/src/esp32s3/esp32s3_otg.h

@@ -0,0 +1,73 @@
+/****************************************************************************
+ * arch/xtensa/src/esp32s3/esp32s3_otg.h
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_XTENSA_SRC_ESP32S3_ESP32S3_OTG_H
+#define __ARCH_XTENSA_SRC_ESP32S3_ESP32S3_OTG_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+
+#include "chip.h"
+#include "hardware/esp32s3_otg.h"
+
+#if defined(CONFIG_ESP32S3_OTG)
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Name:  esp32s3_usbsuspend
+ *
+ * Description:
+ *   Board logic must provide the esp32s3_usbsuspend logic if the OTG FS
+ *   device driver is used.  This function is called whenever the USB enters
+ *   or leaves suspend mode. This is an opportunity for the board logic to
+ *   shutdown clocks, power, etc. while the USB is suspended.
+ *
+ ****************************************************************************/
+
+struct usbdev_s;
+void esp32s3_usbsuspend(struct usbdev_s *dev, bool resume);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_ESP32S3_OTG */
+#endif /* __ARCH_XTENSA_SRC_ESP32S3_ESP32S3_OTG_H */