cdfs.h

AMLOGIC DPF source code

/*
 * cdfs_fs_i.h
 *
 * This file is intended for the Linux kernel/module. 
 *
 * CONTACTS
 *	E-mail regarding any portion of the Linux CDFS file system should be
 *	directed to the development team mailing list (run by majordomo):
 *		[e-mail]
 *
 * COPYRIGHT
 *	This file is distributed under the terms of the GNU General Public
 *	License (GPL). Copies of the GPL can be obtained from:
 *		ftp://prep.ai.mit.edu/pub/gnu/GPL
 *	Each contributing author retains all rights to their own work.
 */

#ifndef _CDFS_H
#define _CDFS_H

#define CDDA_DISC_TYPE  0x00 //CDDA or CD-ROM with first track MODE 1
#define CDI_DISC_TYPE   0x10  //CD-I Disc
#define CDROMXA_DISC_TYPE 0x20 //CD-ROM XA disc with first track in Mode 2
typedef enum cdfs_types_s
{
    CDFS_ERROR_TYPE,
    CDFS_CDDA,
    CDFS_CDT,  
} cdfs_types_t;

typedef struct cdfs_info_s
{
    	dev_t  dev;
    	unsigned int sessionNum;
    	unsigned int trackNum;
    	unsigned int typeFlag; 
    	disk_device *dd;

}cdfs_dev_info_t;

/*
 * This structure identifies the instance of the filesystem on the 
 * ("cdfs-file") level.
 */
typedef struct cdfs_fs_info_s
{

    cdfs_dev_info_t     vol;

    Chain_Control *chain;                                  /* "list" of cdfs-file descriptors */
    avfs_filesystem_file_handlers_r *directory_handlers; /*
                                                           * a set of routines
                                                           * that handles the
                                                           * nodes of directory
                                                           * type
                                                           */
    avfs_filesystem_file_handlers_r *file_handlers;      /*
                                                           * a set of routines
                                                           * that handles the
                                                           * nodes of file
                                                           * type
                                                           */
    avfs_id                          vol_sema;           /*
                                                           * semaphore
                                                           * associated with
                                                           * the volume
                                                           */
    unsigned32 num_path_table;
    unsigned32 joliet_level;
    unsigned32 current_obj;  //object in operating  Andrew
}cdfs_fs_info_t;

typedef avfs_filesystem_node_types_t cdfs_file_type_t;

#define CDFS_DIRECTORY     AVFS_FILESYSTEM_DIRECTORY
#define CDFS_FILE          AVFS_FILESYSTEM_MEMORY_FILE

typedef struct cdfs_dir_info_s{
    unsigned32  size;
    int         name_len;
    char *      name;   // for file only
    unsigned32  start;
} cdfs_dir_info_t;
/*
 * descriptor of a cdfs-file
 *
 */
typedef struct cdfs_file_fd_s
{
	Chain_Node          link;
	unsigned16          links_num;
	cdfs_dir_info_t     *dirs_files;    //files in if it is dir    
	unsigned32          trackStart;     //track start if it is a file
	unsigned32          size;       //track end   if it is a file
	unsigned32          indexInRootDir; //track index in dir
	unsigned32          dir_file_num;       // for dir only
	cdfs_file_type_t    type;
} cdfs_file_fd_t;

#ifndef RC_OK
#define RC_OK 0x00000000
#endif
#define CDFS_NAME_NOT_FOUND_ERR          0xDD000001
#define CDFS_VOLUME_SEMAPHORE_TIMEOUT    AVFS_NO_TIMEOUT

#ifndef set_errno_and_return_minus_one
#define set_errno_and_return_minus_one avfs_set_errno_and_return_minus_one
#endif /* set_errno_and_return_minus_one */

extern avfs_filesystem_operations_table cdfs_ops;
extern avfs_filesystem_file_handlers_r cdfs_dir_handlers;
extern avfs_filesystem_file_handlers_r cdfs_file_handlers;

#define CDFS_MAX_FILE_INCREASE	64
#define CDFS_NAME_MAX     256
#define CDFS_DOT_NAME     ".          " /* ".", padded to CDFS_NAME chars */
#define CDFS_DOTDOT_NAME  "..         " /* "..", padded to CDFS_NAME chars */
#define CDFS_BYTES_PER_SECTOR	2048

#define CDFS_DEFAULT_BLOCK_SHIFT        11
#define CDFS_CDDA_DEFAULT_SIZE        2352
#define CDFS_DEFAULT_BLOCK_SIZE       2048

#define CDFS_DEV_BSIZE                    CDFS_DEFAULT_BLOCK_SIZE
typedef enum cdfs_token_types_s
{
    CDFS_NO_MORE_PATH,
    CDFS_CURRENT_DIR,
    CDFS_UP_DIR,
    CDFS_NAME,
    CDFS_INVALID_TOKEN
} cdfs_token_types_t;


#define cdfs_is_separator(_ch)          avfs_filesystem_is_separator(_ch)
/* udf_initialize_support --
 *     udf filesystem initialization
 *
 * PARAMETERS:
 *     temp_mt_entry      - mount table entry
 *     op_table           - filesystem operations table
 *     file_handlers      - file operations table
 *     directory_handlers - directory operations table
 *
 * RETURNS:
 *     RC_OK and filled temp_mt_entry on success, or -1 if error occured
 *     (errno set apropriately)
 *
 */
int
udf_initialize_support(
    avfs_filesystem_mount_table_entry_t *temp_mt_entry,
    avfs_filesystem_operations_table    *op_table,
    avfs_filesystem_file_handlers_r     *file_handlers,
    avfs_filesystem_file_handlers_r     *directory_handlers
    );
#endif /* #ifndef _CDFS_FS_H */