ardupilot/libraries/AP_HAL_ChibiOS/hwdef/common/posix.h

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/**
@file fatfs/posix.h
@brief POSIX wrapper for FatFS
@par Copyright © 2015 Mike Gore, GPL License
@par You are free to use this code under the terms of GPL
please retain a copy of this notice in any code you use it in.
This is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option)
any later version.
This software is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _POSIX_H_
#define _POSIX_H_
#include <board.h>
#ifdef USE_POSIX
#define POSIX
#pragma GCC diagnostic ignored "-Wshadow"
///@brief make sure we use our EDOM and ERANGE values
#undef EDOM
#undef ERANGE
#include <stdint.h>
#include <stddef.h>
#include <ff.h>
#include <stdarg.h>
#include <time.h>
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#define MAXLN 128
#define ISSPACE " \t\n\r\f\v"
///@brief make sure we use our strerror_r function
#ifdef __cplusplus
extern "C" {
#endif
// =============================================
///@brief Standard POSIX typedefs.
///
/// - Using these makes code portable accross many acrchitectures
//typedef uint32_t blkcnt_t; /*< blkcnt_t for this architecture */
//typedef uint32_t blksize_t; /*< blksize_t for this architecture */
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typedef int32_t off_t;
typedef off_t fpos_t;
extern int errno;
// =============================================
// @brief posix errno values
enum POSIX_errno
{
EOK, /*< 0 NO ERROR */
EPERM, /*< 1 Operation not permitted */
ENOENT, /*< 2 No such file or directory */
ESRCH, /*< 3 No such process */
EINTR, /*< 4 Interrupted system call */
EIO, /*< 5 I/O error */
ENXIO, /*< 6 No such device or address */
E2BIG, /*< 7 Argument list too long */
ENOEXEC, /*< 8 Exec format error */
EBADF, /*< 9 Bad file number */
ECHILD, /*< 10 No child processes */
EAGAIN, /*< 11 Try again */
ENOMEM, /*< 12 Out of memory */
EACCES, /*< 13 Permission denied */
EFAULT, /*< 14 Bad address */
ENOTBLK, /*< 15 Block device required */
EBUSY, /*< 16 Device or resource busy */
EEXIST, /*< 17 File exists */
EXDEV, /*< 18 Cross-device link */
ENODEV, /*< 19 No such device */
ENOTDIR, /*< 20 Not a directory */
EISDIR, /*< 21 Is a directory */
EINVAL, /*< 22 Invalid argument */
ENFILE, /*< 23 File table overflow */
EMFILE, /*< 24 Too many open files */
ENOTTY, /*< 25 Not a typewriter */
ETXTBSY, /*< 26 Text file busy */
EFBIG, /*< 27 File too large */
ENOSPC, /*< 28 No space left on device */
ESPIPE, /*< 29 Illegal seek */
EROFS, /*< 30 Read-only file system */
EMLINK, /*< 31 Too many links */
EPIPE, /*< 32 Broken pipe */
EDOM, /*< 33 Math argument out of domain of func */
ERANGE, /*< 34 Math result not representable */
EBADMSG /*< 35 Bad Message */
};
// =============================================
///@brief POSIX stat structure
///@see stat()
///@see fstat()
struct stat
{
dev_t st_dev; /*< ID of device containing file */
ino_t st_ino; /*< inode number */
mode_t st_mode; /*< protection */
nlink_t st_nlink; /*< number of hard links */
uid_t st_uid; /*< user ID of owner */
gid_t st_gid; /*< group ID of owner */
dev_t st_rdev; /*< device ID (if special file) */
off_t st_size; /*< total size, in bytes */
uint32_t st_blksize;/*< blocksize for filesystem I/O */
uint32_t st_blocks; /*< number of 512B blocks allocated */
time_t st_atime; /*< time of last access */
time_t st_mtime; /*< time of last modification */
time_t st_ctime; /*< time of last status change */
};
///@brief POSIX utimbuf structure
///@see utime()
typedef struct utimbuf
{
time_t actime; /* access time */
time_t modtime; /* modification time */
} utime_t;
#if _USE_LFN != 0
#define MAX_NAME_LEN _MAX_LFN
#else
#define MAX_NAME_LEN 13
#endif
struct dirent {
#if 0 // unsupported
ino_t d_ino; /* inode number */
off_t d_off; /* not an offset; see NOTES */
unsigned short d_reclen; /* length of this record */
unsigned char d_type; /* type of file; not supported
by all filesystem types */
#endif
char d_name[MAX_NAME_LEN]; /* filename */
};
typedef struct dirent dirent_t;
///@brief POSIX lstat()
///@see stat()
#define lstat stat
// =============================================
///@brief FILE type structure
struct __file {
char *buf; /* buffer pointer */
unsigned char unget; /* ungetc() buffer */
uint8_t flags; /* flags, see below */
#define __SRD 0x0001 /* OK to read */
#define __SWR 0x0002 /* OK to write */
#define __SSTR 0x0004 /* this is an sprintf/snprintf string */
#define __SPGM 0x0008 /* fmt string is in progmem */
#define __SERR 0x0010 /* found error */
#define __SEOF 0x0020 /* found EOF */
#define __SUNGET 0x040 /* ungetc() happened */
#define __SMALLOC 0x80 /* handle is malloc()ed */
#if 0
/* possible future extensions, will require uint16_t flags */
#define __SRW 0x0100 /* open for reading & writing */
#define __SLBF 0x0200 /* line buffered */
#define __SNBF 0x0400 /* unbuffered */
#define __SMBF 0x0800 /* buf is from malloc */
#endif
int size; /* size of buffer */
int len; /* characters read or written so far */
int (*put)(char, struct __file *); /* write one char to device */
int (*get)(struct __file *); /* read one char from device */
// FIXME add all low level functions here like _open, _close, ... like newlib does
void *udata; /* User defined and accessible data. */
};
// =============================================
///@brief POSIX open modes - no other combination are allowed.
/// - man page open(2)
/// - Note: The POSIX correct test of O_RDONLY is: (mode & O_ACCMODE) == O_RDONLY.
#define O_ACCMODE 00000003 /*< read, write, read-write modes */
#define O_RDONLY 00000000 /*< Read only */
#define O_WRONLY 00000001 /*< Write only */
#define O_RDWR 00000002 /*< Read/Write */
#define O_CREAT 00000100 /*< Create file only if it does not exist */
#define O_EXCL 00000200 /*< O_CREAT option, Create fails if file exists
*/
#define O_NOCTTY 00000400 /*< @todo */
#define O_TRUNC 00001000 /*< Truncate if exists */
#define O_APPEND 00002000 /*< All writes are to EOF */
#define O_NONBLOCK 00004000 /*< @todo */
#define O_BINARY 00000004 /*< Binary */
#define O_TEXT 00000004 /*< Text End Of Line translation */
#define O_CLOEXEC 00000000
///@brief POSIX File types, see fstat and stat.
#define S_IFMT 0170000 /*< These bits determine file type. */
#define S_IFDIR 0040000 /*< Directory. */
#define S_IFCHR 0020000 /*< Character device. */
#define S_IFBLK 0060000 /*< Block device. */
#define S_IFREG 0100000 /*< Regular file. */
#define S_IFIFO 0010000 /*< FIFO. */
#define S_IFLNK 0120000 /*< Symbolic link. */
#define S_IFSOCK 0140000 /*< Socket. */
#define S_IREAD 0400 /*< Read by owner. */
#define S_IWRITE 0200 /*< Write by owner. */
#define S_IEXEC 0100 /*< Execute by owner. */
///@brief POSIX File type test macros.
#define S_ISTYPE(mode, mask) (((mode) & S_IFMT) == (mask))
#define S_ISDIR(mode) S_ISTYPE((mode), S_IFDIR)
#define S_ISCHR(mode) S_ISTYPE((mode), S_IFCHR)
#define S_ISBLK(mode) S_ISTYPE((mode), S_IFBLK)
#define S_ISREG(mode) S_ISTYPE((mode), S_IFREG)
//@brief POSIX File permissions, see fstat and stat
#define S_IRUSR S_IREAD /*< Read by owner. */
#define S_IWUSR S_IWRITE /*< Write by owner. */
#define S_IXUSR S_IEXEC /*< Execute by owner. */
#define S_IRWXU (S_IREAD|S_IWRITE|S_IEXEC) /*< Read,Write,Execute by owner */
#define S_IRGRP (S_IRUSR >> 3) /*< Read by group. */
#define S_IWGRP (S_IWUSR >> 3) /*< Write by group. */
#define S_IXGRP (S_IXUSR >> 3) /*< Execute by group. */
#define S_IRWXG (S_IRWXU >> 3) /*< Read,Write,Execute by user */
#define S_IROTH (S_IRGRP >> 3) /*< Read by others. */
#define S_IWOTH (S_IWGRP >> 3) /*< Write by others. */
#define S_IXOTH (S_IXGRP >> 3) /*< Execute by others. */
#define S_IRWXO (S_IRWXG >> 3) /*< Read,Write,Execute by other */
// =============================================
///@brief used in posix.c to compare to ascii file modes
#define modecmp(str, pat) (strcmp(str, pat) == 0 ? 1: 0)
// =============================================
///@brief FATFS open modes
#define FATFS_R (S_IRUSR | S_IRGRP | S_IROTH) /*< FatFs Read perms */
#define FATFS_W (S_IWUSR | S_IWGRP | S_IWOTH) /*< FatFs Write perms */
#define FATFS_X (S_IXUSR | S_IXGRP | S_IXOTH) /*< FatFs Execute perms */
// =============================================
///@brief End of file or device read
#define EOF (-1)
///@brief Seek offset macros
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
// =============================================
///@brief define FILE type
typedef struct __file FILE;
///@brief Maximum number of POSIX file handles.
#define MAX_FILES 16
extern FILE *__iob[MAX_FILES];
///@brief define stdin, stdout and stderr
#undef stdin
#undef stdout
#undef stderr
// Hard coded stdin,stdout and stderr locations
#define stdin (__iob[0])
#define stdout (__iob[1])
#define stderr (__iob[2])
// =============================================
//#define IO_MACROS
#ifdef IO_MACROS
///@briefdefine putc, putchar and getc in terms of the posix fgetc() and fputc() interface
/// MAKE SURE that fdevopen() has been called BEFORE any input/output is processed
/// @see uart.c for the fdevopen() call
#define putc(__c, __stream) fputc(__c, __stream)
#define getc(__stream) fgetc(__stream)
/**
The macro \c putchar sends character \c c to \c stdout.
*/
#define putchar(__c) fputc(__c,stdout)
#define puts(__str) fputs(__str,stdout)
#endif
// =============================================
///@brief device IO udata
#define fdev_set_udata(stream, u) do { (stream)->udata = u; } while(0)
#define fdev_get_udata(stream) ((stream)->udata)
///@brief device status flags
#define _FDEV_EOF (-1)
#define _FDEV_ERR (-2)
//@brief device read/write flags
#define _FDEV_SETUP_READ __SRD /**< fdev_setup_stream() with read intent */
#define _FDEV_SETUP_WRITE __SWR /**< fdev_setup_stream() with write intent */
#define _FDEV_SETUP_RW (__SRD|__SWR) /**< fdev_setup_stream() with read/write intent */
// =============================================
/* posix.c */
int isatty ( int fileno );
int fgetc ( FILE *stream );
int fputc ( int c , FILE *stream );
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void clearerr(FILE *stream);
#ifndef IO_MACROS
int getchar ( void );
int putchar ( int c );
#endif
//int ungetc ( int c , FILE *stream );
#ifndef IO_MACROS
int putc ( int c , FILE *stream );
#endif
char *fgets ( char *str , int size , FILE *stream );
int fputs ( const char *str , FILE *stream );
#ifndef IO_MACROS
int puts ( const char *str );
#endif
int feof ( FILE *stream );
int fgetpos ( FILE *stream , size_t *pos );
int fseek ( FILE *stream , long offset , int whence );
int fsetpos ( FILE *stream , size_t *pos );
long ftell ( FILE *stream );
off_t lseek ( int fileno , off_t position , int whence );
void rewind ( FILE *stream );
int close ( int fileno );
int fileno ( FILE *stream );
FILE *fileno_to_stream ( int fileno );
FILE *fopen ( const char *path , const char *mode );
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size_t __wrap_fread ( void *ptr , size_t size , size_t nmemb , FILE *stream );
int ftruncate ( int fd , off_t length );
size_t fwrite ( const void *ptr , size_t size , size_t nmemb , FILE *stream );
int open (const char *pathname, int flags);
ssize_t read ( int fd , void *buf , size_t count );
void sync ( void );
int syncfs(int fd);
int fsync ( int fd );
int truncate ( const char *path , off_t length );
ssize_t write ( int fd , const void *buf , size_t count );
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int __wrap_fclose ( FILE *stream );
FILE * __wrap_freopen ( const char * filename, const char * mode, FILE * stream );
int getc(FILE *fp);
char *gets (char *p);
//void dump_stat ( struct stat *sp );
#if 0
int fstat ( int fd , struct stat *buf );
#endif
int64_t fs_getfree(void);
int64_t fs_gettotal(void);
int stat ( const char *name , struct stat *buf );
char *basename (const char *str );
char *baseext ( char *str );
int chdir ( const char *pathname );
int chmod ( const char *pathname , mode_t mode );
int dirname ( char *str );
//int utime(const char *filename, const struct utimbuf *times);
#if 0
int fchmod ( int fd , mode_t mode );
#endif
char *getcwd ( char *pathname , int len );
int mkdir ( const char *pathname , mode_t mode );
int rename ( const char *oldpath , const char *newpath );
int rmdir ( const char *pathname );
int unlink ( const char *pathname );
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int remove(const char *pathname);
int closedir ( DIR *dirp );
DIR *opendir ( const char *pathdir );
struct dirent *readdir ( DIR *dirp );
void clrerror ( FILE *stream );
int ferror ( FILE *stream );
void perror ( const char *s );
char *strerror ( int errnum );
char *__wrap_strerror_r ( int errnum , char *buf , size_t buflen );
FILE *fdevopen ( int (*put )(char ,FILE *), int (*get )(FILE *));
//int mkfs(char *name );
int fatfs_getc ( FILE *stream );
int fatfs_putc ( char c , FILE *stream );
int fatfs_to_errno ( FRESULT Result );
int fatfs_to_fileno ( FIL *fh );
time_t fat_time_to_unix ( uint16_t date , uint16_t time );
void unix_time_to_fat(time_t epoch, uint16_t *date, uint16_t *time);
FIL *fileno_to_fatfs ( int fileno );
int free_file_descriptor ( int fileno );
int new_file_descriptor ( void );
int posix_fopen_modes_to_open ( const char *mode );
int fprintf(FILE *fp, const char *format, ...);
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#ifdef __cplusplus
}
#endif
// =============================================
#endif //USE_POSIX
#endif //_POSIX_H_