[feat][fatfs] add usb port

bsp/bsp_common/fatfs/fatfs_errorcode.c

@@ -0,0 +1,22 @@
+const char *FR_Table[] = {
+    "FR_OK：成功",                                           /* (0) Succeeded */
+    "FR_DISK_ERR：底层硬件错误",                             /* (1) A hard error occurred in the low level disk I/O layer */
+    "FR_INT_ERR：断言失败",                                  /* (2) Assertion failed */
+    "FR_NOT_READY：物理驱动没有工作",                        /* (3) The physical drive cannot work */
+    "FR_NO_FILE：文件不存在",                                /* (4) Could not find the file */
+    "FR_NO_PATH：路径不存在",                                /* (5) Could not find the path */
+    "FR_INVALID_NAME：无效文件名",                           /* (6) The path name format is invalid */
+    "FR_DENIED：由于禁止访问或者目录已满访问被拒绝",         /* (7) Access denied due to prohibited access or directory full */
+    "FR_EXIST：文件已经存在",                                /* (8) Access denied due to prohibited access */
+    "FR_INVALID_OBJECT：文件或者目录对象无效",               /* (9) The file/directory object is invalid */
+    "FR_WRITE_PROTECTED：物理驱动被写保护",                  /* (10) The physical drive is write protected */
+    "FR_INVALID_DRIVE：逻辑驱动号无效",                      /* (11) The logical drive number is invalid */
+    "FR_NOT_ENABLED：卷中无工作区",                          /* (12) The volume has no work area */
+    "FR_NO_FILESYSTEM：没有有效的FAT卷",                     /* (13) There is no valid FAT volume */
+    "FR_MKFS_ABORTED：由于参数错误f_mkfs()被终止",           /* (14) The f_mkfs() aborted due to any parameter error */
+    "FR_TIMEOUT：在规定的时间内无法获得访问卷的许可",        /* (15) Could not get a grant to access the volume within defined period */
+    "FR_LOCKED：由于文件共享策略操作被拒绝",                 /* (16) The operation is rejected according to the file sharing policy */
+    "FR_NOT_ENOUGH_CORE：无法分配长文件名工作区",            /* (17) LFN working buffer could not be allocated */
+    "FR_TOO_MANY_OPEN_FILES：当前打开的文件数大于_FS_SHARE", /* (18) Number of open files > _FS_SHARE */
+    "FR_INVALID_PARAMETER：参数无效"                         /* (19) Given parameter is invalid */
+};

bsp/bsp_common/fatfs/fatfs_usb.c

@@ -0,0 +1,104 @@
+/**
+ * @file fatfs_spi_sd.c
+ * @brief
+ *
+ * Copyright (c) 2021 Bouffalolab team
+ *
+ * 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.
+ *
+ */
+
+#include "diskio.h"
+#include "string.h"
+#include "hal_flash.h"
+
+#define FLASH_START_ADDR  0x00040000 /*addr start from 256k */
+#define FLASH_BLOCK_SIZE  4096
+#define FLASH_BLOCK_COUNT 64
+
+extern const char *FR_Table[];
+
+int usb_disk_status(void)
+{
+    return 0;
+}
+int usb_disk_initialize(void)
+{
+    return RES_OK;
+}
+int usb_disk_read(BYTE *buff, LBA_t sector, UINT count)
+{
+    flash_read(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, (uint8_t *)buff, count * FLASH_BLOCK_SIZE);
+    return 0;
+}
+int usb_disk_write(const BYTE *buff, LBA_t sector, UINT count)
+{
+    flash_erase(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, 4096);
+    flash_write(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, (uint8_t *)buff, count * FLASH_BLOCK_SIZE);
+    return 0;
+}
+int usb_disk_ioctl(BYTE cmd, void *buff)
+{
+    int result = 0;
+
+    switch (cmd) {
+        case CTRL_SYNC:
+            result = RES_OK;
+            break;
+
+        case GET_SECTOR_SIZE:
+            *(DWORD *)buff = FLASH_BLOCK_SIZE;
+            result = RES_OK;
+            break;
+
+        case GET_BLOCK_SIZE:
+            *(WORD *)buff = 1;
+            result = RES_OK;
+            break;
+
+        case GET_SECTOR_COUNT:
+            *(DWORD *)buff = FLASH_BLOCK_COUNT;
+            result = RES_OK;
+            break;
+
+        default:
+            result = RES_PARERR;
+            break;
+    }
+
+    return result;
+}
+
+DSTATUS Translate_Result_Code(int result)
+{
+    //MSG("%s\r\n", FR_Table[result]);
+    return result;
+}
+
+void fatfs_usb_driver_register(void)
+{
+    FATFS_DiskioDriverTypeDef USBDiskioDriver;
+
+    memset(&USBDiskioDriver, 0, sizeof(FATFS_DiskioDriverTypeDef));
+
+    USBDiskioDriver.USB_disk_status = usb_disk_status;
+    USBDiskioDriver.USB_disk_initialize = usb_disk_initialize;
+    USBDiskioDriver.USB_disk_write = usb_disk_write;
+    USBDiskioDriver.USB_disk_read = usb_disk_read;
+    USBDiskioDriver.USB_disk_ioctl = usb_disk_ioctl;
+    USBDiskioDriver.Translate_Result_Code = Translate_Result_Code;
+    disk_driver_callback_init(&USBDiskioDriver);
+}