310554049 LAB8

README.md

@@ -2,7 +2,7 @@
 
 | Github Account | Student ID | Name          |
 |----------------|------------|---------------|
-| hellcwang      | 310554049  | Chia-Wei Wang |
+| | 310554049  |  |
 
 ## Requirements
 

lab8/Makefile

@@ -20,7 +20,7 @@ all: clean kernel8.img initramfs.cpio
 #initramfs.cpio: initramfs
 #	cd initramfs; find . -print -depth | cpio -H newc -o > $@; mv $@ ..
 
-initramfs.cpio: vfs1.img
+initramfs.cpio: vfs2.img
 	ls $^ | cpio -H newc -o > $@
 
 $(OBJ_DIR)/%.o: $(SRC_DIR)/%.S

lab8/config.txt

@@ -1 +1,2 @@
-initramfs initramfs.cpio 0x8000000
+initramfs ramfs.cpi 0x8000000
+device_tree=dt.dtb

lab8/include/fatfs.h

@@ -14,24 +14,24 @@ typedef struct {
   int size;
   size_t Eof;
   void *dirs;
-  void *data;
+  uint32_t data; // The sector of the data
 } FsAttr;
 
 // For the directory
 typedef struct {
-  char name[8];	// SFN care tof the first byte
-  char ext[3];	// Extension pad with " "
-  uint8_t attr;	// File attribute Normal -> 0
-  uint8_t attr2; // default: 0 
-  uint8_t createTimeMs;	// ms of the createTime
-  uint16_t createTime;	// 15:13 -> Hours, 10:5 -> Min, 4:0 -> seconds
-  uint16_t createTimeDate;	// 15:13 -> Year, 10:5 -> Mon, 4:0 -> Day
+  char name[8];            // SFN care tof the first byte
+  char ext[3];             // Extension pad with " "
+  uint8_t attr;            // File attribute Normal -> 0
+  uint8_t attr2;           // default: 0
+  uint8_t createTimeMs;    // ms of the createTime
+  uint16_t createTime;     // 15:13 -> Hours, 10:5 -> Min, 4:0 -> seconds
+  uint16_t createTimeDate; // 15:13 -> Year, 10:5 -> Mon, 4:0 -> Day
   uint16_t ownerID;
-  uint16_t highAddr;	// High two bytes of first cluster 
+  uint16_t highAddr; // High two bytes of first cluster
   uint16_t modifiedTime;
   uint16_t modifiedDate;
-  uint16_t lowAddr;	// Low two bytes of first cluster 
-  uint32_t size;	// Total size of file
+  uint16_t lowAddr; // Low two bytes of first cluster
+  uint32_t size;    // Total size of file
 } Entry;
 
 int fatfs_init(struct filesystem *fs, struct mount *m);
@@ -49,6 +49,6 @@ int fatfs_read(struct file *f, void *buf, size_t len);
 int fatfs_write(struct file *f, const void *buf, size_t len);
 int fatfs_open(struct vnode *, struct file **target);
 int fatfs_close(struct file *f);
-
+void fatfs_sync();
 
 #endif

lab8/include/framefs.h

@@ -7,11 +7,11 @@
 #include "uart.h"
 #include "vfs.h"
 
-struct framebuffer_info{
-	unsigned int width;
-	unsigned int height;
-	unsigned int pitch;
-	unsigned int isrgb;
+struct framebuffer_info {
+  unsigned int width;
+  unsigned int height;
+  unsigned int pitch;
+  unsigned int isrgb;
 };
 
 int framefs_init(struct filesystem *fs, struct mount *m);

lab8/include/ramfs.h

@@ -31,5 +31,4 @@ int ramfs_write(struct file *f, const void *buf, size_t len);
 int ramfs_open(struct vnode *, struct file **target);
 int ramfs_close(struct file *f);
 
-
 #endif

lab8/include/sd.h

@@ -1,7 +1,7 @@
 #ifndef SD_H
 #define SD_H
 
-void readblock(int, void*);
-void writeblock(int, void*);
+void readblock(int, void *);
+void writeblock(int, void *);
 void sd_init();
 #endif

lab8/include/syscall.h

@@ -40,6 +40,7 @@ int sys_mount(const char *src, const char *target, const char *filesystem,
               unsigned long, const void *);
 int sys_chdir(const char *path);
 long sys_lseek64(int fd, long offset, int whence);
-int sys_ioctl(int fd, unsigned long request, void* fb_info);
+int sys_ioctl(int fd, unsigned long request, void *fb_info);
+void sys_sync();
 
 #endif // SYSCALL_H

lab8/include/vfs.h

@@ -12,32 +12,33 @@ typedef enum {
 
 /* THis is the INODE*/
 struct vnode {
-  struct vnode *parent; // Parent DIR
-  struct mount *mount;	// The mount node of the FS
+  struct vnode *parent;           // Parent DIR
+  struct mount *mount;            // The mount node of the FS
   struct vnode_operations *v_ops; // Vnode operations
-  struct file_operations *f_ops; // File operations
-  char name[16];	// Name of the node.
-  FsTy type;		// Type of the vnode
-  void *internal; // The for each file defined
+  struct file_operations *f_ops;  // File operations
+  char name[16];                  // Name of the node.
+  FsTy type;                      // Type of the vnode
+  void *internal;                 // The for each file defined
 };
 
 /* Mount Node of the FS*/
 struct mount {
-  struct vnode *root;		// The root of this fs
-  struct filesysytem *system;	// Point to the file system
+  struct vnode *root;         // The root of this fs
+  struct filesysytem *system; // Point to the file system
 };
 
 /* Opening a file need to do following things.  * 1. Allocat a file strucure.
  * * 2. Copy the member operation from dentry (INODE) A place the file
  * descriptor table for the process.
  */
 struct file {
-  struct vnode *vnode;	// The original vnode of file
-  size_t f_pos;		// Current position of the file
-  size_t Eof;		// End of the FILE
+  struct vnode *vnode; // The original vnode of file
+  size_t f_pos;        // Current position of the file
+  size_t Eof;          // End of the FILE
   struct file_operations *f_ops;
   int flags;
-  void *data;		// The data of this file
+  void *data; // The data of this file
+  int dirty;
 };
 
 /* This structure contain the filesystem name such as Ext3
@@ -66,6 +67,12 @@ struct file_operations {
   int (*close)(struct file *);
 };
 
+typedef struct FIle_list {
+  struct FIle_list *prev;
+  struct FIle_list *next;
+  struct file *f;
+} file_list;
+
 // struct mount* rootfs;
 
 /* From linux vfs.rst It sys.
@@ -87,7 +94,6 @@ int vfs_mount(const char *target, const char *filesystem);
  */
 int vfs_lookup(const char *pathname, struct vnode **target, struct vnode *root);
 
-
 #define O_CREAT 0b0100
 #define SEEK_SET 0