添加 USB 主机、BLE 和 Socket 数据端口驱动程序：

- 支持大容量存储类（MSC）的 USB 主机驱动程序
- BLE SPP（串行端口配置文件）客户端和服务器实现
- Socket（UDP/TCP）数据端口驱动程序
- 相关的 shell 接口用于配置和测试

app/drivers/data_port/usb-host/msc/private_include/diskio_usb.h

@@ -0,0 +1,39 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Mass storage disk initialization structure
+ */
+typedef struct {
+    uint32_t block_size;    /**< Block size */
+    uint32_t block_count;   /**< Block count */
+} usb_disk_t;
+
+/**
+ * @brief Register mass storage disk to fat file system
+ *
+ * @param[in] pdrv Number of free drive obtained from ff_diskio_get_drive() function
+ * @param[in] disk usb_disk_t structure
+ */
+void ff_diskio_register_msc(uint8_t pdrv, usb_disk_t *disk);
+
+/**
+ * @brief Obtains number of drive assigned to usb disk upon calling ff_diskio_register_msc()
+ *
+ * @param[in] disk usb_disk_t structure
+ * @return Drive number
+ */
+uint8_t ff_diskio_get_pdrv_disk(const usb_disk_t *disk);
+
+#ifdef __cplusplus
+}
+#endif //__cplusplus

app/drivers/data_port/usb-host/msc/private_include/msc_common.h

@@ -0,0 +1,61 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <sys/queue.h>
+#include "esp_err.h"
+#include "esp_check.h"
+#include "diskio_usb.h"
+#include "usb/usb_host.h"
+#include "usb/usb_types_stack.h"
+#include "freertos/semphr.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef enum {
+    MSC_EP_OUT,
+    MSC_EP_IN
+} msc_endpoint_t;
+
+typedef struct {
+    uint16_t bulk_in_mps;
+    uint8_t bulk_in_ep;
+    uint8_t bulk_out_ep;
+    uint8_t iface_num;
+} msc_config_t;
+
+typedef struct msc_host_device {
+    STAILQ_ENTRY(msc_host_device) tailq_entry;
+    usb_transfer_status_t transfer_status;
+    SemaphoreHandle_t transfer_done;
+    usb_device_handle_t handle;
+    usb_transfer_t *xfer;
+    msc_config_t config;
+    usb_disk_t disk;
+} msc_device_t;
+
+esp_err_t msc_bulk_transfer(msc_device_t *device_handle, uint8_t *data, size_t size, msc_endpoint_t ep);
+
+esp_err_t msc_control_transfer(msc_device_t *device_handle, usb_transfer_t *xfer, size_t len);
+
+#define MSC_GOTO_ON_ERROR(exp) ESP_GOTO_ON_ERROR(exp, fail, TAG, "")
+
+#define MSC_GOTO_ON_FALSE(exp, err) ESP_GOTO_ON_FALSE( (exp), err, fail, TAG, "" )
+
+#define MSC_RETURN_ON_ERROR(exp) ESP_RETURN_ON_ERROR((exp), TAG, "")
+
+#define MSC_RETURN_ON_FALSE(exp, err) ESP_RETURN_ON_FALSE( (exp), (err), TAG, "")
+
+#define MSC_RETURN_ON_INVALID_ARG(exp) ESP_RETURN_ON_FALSE((exp) != NULL, ESP_ERR_INVALID_ARG, TAG, "")
+
+#ifdef __cplusplus
+}
+#endif

app/drivers/data_port/usb-host/msc/private_include/msc_scsi_bot.h

@@ -0,0 +1,56 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include "esp_err.h"
+#include "msc_common.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef struct {
+    uint8_t key;
+    uint8_t code;
+    uint8_t code_q;
+} scsi_sense_data_t;
+
+esp_err_t scsi_cmd_read10(msc_device_t *device,
+                          uint8_t *data,
+                          uint32_t sector_address,
+                          uint32_t num_sectors,
+                          uint32_t sector_size);
+
+esp_err_t scsi_cmd_write10(msc_device_t *device,
+                           const uint8_t *data,
+                           uint32_t sector_address,
+                           uint32_t num_sectors,
+                           uint32_t sector_size);
+
+esp_err_t scsi_cmd_read_capacity(msc_device_t *device,
+                                 uint32_t *block_size,
+                                 uint32_t *block_count);
+
+esp_err_t scsi_cmd_sense(msc_device_t *device, scsi_sense_data_t *sense);
+
+esp_err_t scsi_cmd_unit_ready(msc_device_t *device);
+
+esp_err_t scsi_cmd_inquiry(msc_device_t *device);
+
+esp_err_t scsi_cmd_prevent_removal(msc_device_t *device, bool prevent);
+
+esp_err_t scsi_cmd_mode_sense(msc_device_t *device);
+
+esp_err_t msc_mass_reset(msc_device_t *device);
+
+esp_err_t msc_get_max_lun(msc_device_t *device, uint8_t *lun);
+
+#ifdef __cplusplus
+}
+#endif