[feat][shell] add shell fs support

components/shell/shell_fs.c

@@ -0,0 +1,198 @@
+#include "shell.h"
+#include "ff.h"
+#include "fatfs_posix_api.h"
+
+#if defined(SHELL_USING_FS)
+/*
+static void *(*shell_malloc)(size_t size) = mmheap_alloc;
+static void (*shell_free)(void *ptr) = mmheap_free;
+*/
+
+#ifndef MIN
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+
+const char *fatfs_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 */
+};
+
+static char path[SHELL_CONSOLEBUF_SIZE] = { 0 };
+
+#ifdef DFS_USING_WORKDIR
+extern char working_directory[];
+#endif
+
+int cmd_ls(int argc, char **argv)
+{
+    FILINFO entry = { 0 };
+    DIR dir;
+    int err;
+    uint8_t flag = 0;
+
+    for (uint8_t i = 1; i < argc; i++) {
+        //cmd
+        if (argv[i][0] == '-') {
+            if (strcmp(argv[i], "-a") == 0) {
+                flag |= 0x01;
+            } else {
+                MSG("参数错误 %s\r\n", argv[i]);
+                return -1;
+            }
+        }
+        //path
+        else {
+            if ((flag & 0x80) == 0) {
+                strcpy(path, argv[i]);
+                flag |= 0x80;
+            } else {
+                MSG("参数错误 %s\r\n", argv[i]);
+                return -1;
+            }
+        }
+    }
+
+    if ((flag & 0x80) == 0) {
+        strcpy(path, ".");
+    }
+
+    err = f_opendir(&dir, path);
+
+    if (err) {
+        MSG("%s %s\r\n", fatfs_table[err], path);
+        return -1;
+    }
+
+    while (1) {
+        err = f_readdir(&dir, &entry);
+
+        if (err) {
+            MSG("%s %s\r\n", fatfs_table[err], path);
+            break;
+        }
+
+        /* Check for end of directory listing */
+        if (entry.fname[0] == '\0') {
+            break;
+        }
+
+        if ((entry.fattrib & AM_HID) && !(flag & 0x01)) {
+            continue;
+        }
+
+        MSG("%s%s%s\r\n", entry.fname, (entry.fattrib & AM_DIR) ? "/" : "", (entry.fattrib & AM_HID) ? "(Hidden)" : "");
+    }
+
+    f_closedir(&dir);
+
+    return 0;
+}
+SHELL_CMD_EXPORT_ALIAS(cmd_ls, ls, List information about the FILEs.);
+
+int cmd_rm(int argc, char **argv)
+{
+    int err;
+
+    if (argc < 2) {
+        MSG("缺少参数\r\n");
+        MSG("rm <path> \r\n");
+        return -1;
+    } else {
+        strcpy(path, argv[1]);
+    }
+
+    err = f_unlink(path);
+
+    if (err) {
+        MSG("%s %s\r\n", fatfs_table[err], path);
+        err = -1;
+    }
+
+    return err;
+}
+SHELL_CMD_EXPORT_ALIAS(cmd_rm, rm, Remove(unlink) the FILE(s).);
+
+int cmd_cd(int argc, char **argv)
+{
+    int err;
+
+    if (argc < 2) {
+        strcpy(path, ".");
+    } else {
+        strcpy(path, argv[1]);
+    }
+
+    for (uint16_t i = strlen(path) - 1; i > 0; i--) {
+        if (path[i] == '/')
+            path[i] = '\0';
+        else
+            break;
+    }
+
+    err = f_chdir(path);
+
+    if (err) {
+        MSG("%s %s\r\n", fatfs_table[err], path);
+        return -1;
+    }
+
+    return 0;
+}
+SHELL_CMD_EXPORT_ALIAS(cmd_cd, cd, Change the shell working directory.);
+
+int cmd_pwd(int argc, char **argv)
+{
+    int err;
+    err = f_getcwd(path, SHELL_CONSOLEBUF_SIZE);
+
+    if (err) {
+        MSG("%s\r\n", fatfs_table[err]);
+        return -1;
+    }
+
+    MSG("%s\r\n", path);
+
+    return 0;
+}
+SHELL_CMD_EXPORT_ALIAS(cmd_pwd, pwd, Print the name of the current working directory.);
+
+int cmd_mkdir(int argc, char **argv)
+{
+    int err;
+
+    if (argc < 2) {
+        strcpy(path, "new_dir");
+    } else {
+        strcpy(path, argv[1]);
+    }
+
+    err = f_mkdir(path);
+
+    if (err) {
+        MSG("%s %s\r\n", fatfs_table[err], path);
+        err = -1;
+    }
+
+    return err;
+}
+SHELL_CMD_EXPORT_ALIAS(cmd_mkdir, mkdir, Create the DIRECTORY.);
+
+#endif