headers/private/kernel/arch/sparc/stand.h

   1 /*      $OpenBSD: stand.h,v 1.35 1998/07/29 00:38:36 mickey Exp $       */
   2 /*      $NetBSD: stand.h,v 1.18 1996/11/30 04:35:51 gwr Exp $   */
   3
   4 /*-
   5  * Copyright (c) 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)stand.h     8.1 (Berkeley) 6/11/93
  37  */
  38
  39 #include <sys/types.h>
  40 #include <sys/stat.h>
  41 #ifdef __STDC__
  42 #include <machine/stdarg.h>
  43 #else
  44 #include <machine/varargs.h>
  45 #endif
  46 #include "saioctl.h"
  47 #include "saerrno.h"
  48
  49 #ifndef NULL
  50 #define NULL    0
  51 #endif
  52
  53 struct open_file;
  54
  55 /*
  56  * Useful macros
  57  */
  58 #define NENTS(x)        sizeof(x)/sizeof(x[0])
  59 /* don't define if libkern included */
  60 #ifndef LIBKERN_INLINE
  61 #define max(a,b)        (((a)>(b))? (a) : (b))
  62 #define min(a,b)        (((a)>(b))? (b) : (a))
  63 #endif
  64
  65 /*
  66  * This structure is used to define file system operations in a file system
  67  * independent way.
  68  */
  69 struct fs_ops {
  70         int     (*open) __P((char *path, struct open_file *f));
  71         int     (*close) __P((struct open_file *f));
  72         int     (*read) __P((struct open_file *f, void *buf,
  73                              size_t size, size_t *resid));
  74         int     (*write) __P((struct open_file *f, void *buf,
  75                              size_t size, size_t *resid));
  76         off_t   (*seek) __P((struct open_file *f, off_t offset, int where));
  77         int     (*stat) __P((struct open_file *f, struct stat *sb));
  78         int     (*readdir) __P((struct open_file *f, char *));
  79 };
  80
  81 extern struct fs_ops file_system[];
  82 extern int nfsys;
  83
  84 /* where values for lseek(2) */
  85 #define SEEK_SET        0       /* set file offset to offset */
  86 #define SEEK_CUR        1       /* set file offset to current plus offset */
  87 #define SEEK_END        2       /* set file offset to EOF plus offset */
  88
  89 /* Device switch */
  90 struct devsw {
  91         char    *dv_name;
  92         int     (*dv_strategy) __P((void *devdata, int rw,
  93                                     daddr_t blk, size_t size,
  94                                     void *buf, size_t *rsize));
  95         int     (*dv_open) __P((struct open_file *f, ...));
  96         int     (*dv_close) __P((struct open_file *f));
  97         int     (*dv_ioctl) __P((struct open_file *f, u_long cmd, void *data));
  98 };
  99
 100 extern struct devsw devsw[];    /* device array */
 101 extern int ndevs;               /* number of elements in devsw[] */
 102
 103 extern struct consdev constab[];
 104 extern struct consdev *cn_tab;
 105
 106 struct open_file {
 107         int             f_flags;        /* see F_* below */
 108         struct devsw    *f_dev;         /* pointer to device operations */
 109         void            *f_devdata;     /* device specific data */
 110         struct fs_ops   *f_ops;         /* pointer to file system operations */
 111         void            *f_fsdata;      /* file system specific data */
 112         off_t           f_offset;       /* current file offset (F_RAW) */
 113 };
 114
 115 #define SOPEN_MAX       4
 116 extern struct open_file files[];
 117
 118 /* f_flags values */
 119 #define F_READ          0x0001  /* file opened for reading */
 120 #define F_WRITE         0x0002  /* file opened for writing */
 121 #define F_RAW           0x0004  /* raw device open - no file system */
 122 #define F_NODEV         0x0008  /* network open - no device */
 123
 124 #define isupper(c)      ((c) >= 'A' && (c) <= 'Z')
 125 #define islower(c)      ((c) >= 'a' && (c) <= 'z')
 126 #define isalpha(c)      (isupper(c)||islower(c))
 127 #define tolower(c)      (isupper(c)?((c) - 'A' + 'a'):(c))
 128 #define toupper(c)      (islower(c)?((c) - 'a' + 'A'):(c))
 129 #define isspace(c)      ((c) == ' ' || (c) == '\t')
 130 #define isdigit(c)      ((c) >= '0' && (c) <= '9')
 131
 132 #define btochs(b,c,h,s,nh,ns)                   \
 133         c = (b) / ((nh) * (ns));                \
 134         h = ((b) % ((nh) * (ns))) / (ns);       \
 135         s = ((b) % ((nh) * (ns))) % (ns);
 136
 137 void    *alloc __P((u_int));
 138 void    *alloca __P((size_t));
 139 void    free __P((void *, u_int));
 140 struct  disklabel;
 141 char    *getdisklabel __P((const char *, struct disklabel *));
 142 u_int   dkcksum __P((struct disklabel *));
 143
 144 void    printf __P((const char *, ...));
 145 void    sprintf __P((char *, const char *, ...));
 146 void    vprintf __P((const char *, _BSD_VA_LIST_));
 147 void    twiddle __P((void));
 148 void    gets __P((char *));
 149 __dead void     panic __P((const char *, ...)) __attribute__((noreturn));
 150 __dead void     _rtt __P((void)) __attribute__((noreturn));
 151 #define bzero(s,n)      ((void)memset((s),0,(n)))
 152 #define bcmp(s1,s2,n)   (memcmp((s2),(s1),(n)))
 153 #define bcopy(s1,s2,n)  ((void)memcpy((s2),(s1),(n)))
 154 void    *memcpy __P((void *, const void *, size_t));
 155 int     memcmp __P((const void *, const void*, size_t));
 156 char    *strncpy __P((char *, const char *, size_t));
 157 char    *strcpy __P((char *, const char *));
 158 int     strncmp __P((const char *, const char *, size_t));
 159 size_t  strlen __P((const char *));
 160 long    strtol __P((const char *, char **, int));
 161 char    *strchr __P((const char *, int));
 162 void    *memset __P((void *, int, size_t));
 163 void    exec __P((char *, void *, int));
 164 void    exit __P((void));
 165 int     open __P((const char *, int));
 166 int     close __P((int));
 167 void    closeall __P((void));
 168 ssize_t read __P((int, void *, size_t));
 169 ssize_t write __P((int, void *, size_t));
 170 int     stat __P((const char *path, struct stat *sb));
 171 int     fstat __P((int fd, struct stat *sb));
 172 int     opendir __P((char *));
 173 int     readdir __P((int, char *));
 174 void    closedir __P((int));
 175 int     nodev __P((void));
 176 int     noioctl __P((struct open_file *, u_long, void *));
 177 void    nullsys __P((void));
 178
 179 int     null_open __P((char *path, struct open_file *f));
 180 int     null_close __P((struct open_file *f));
 181 ssize_t null_read __P((struct open_file *f, void *buf,
 182                         size_t size, size_t *resid));
 183 ssize_t null_write __P((struct open_file *f, void *buf,
 184                         size_t size, size_t *resid));
 185 off_t   null_seek __P((struct open_file *f, off_t offset, int where));
 186 int     null_stat __P((struct open_file *f, struct stat *sb));
 187 int     null_readdir __P((struct open_file *f, char *name));
 188 char    *ttyname __P((int)); /* match userland decl, but ignore !0 */
 189 dev_t   ttydev __P((char *));
 190 void    cninit __P((void));
 191 int     cnset __P((dev_t));
 192 void    cnputc __P((int));
 193 int     cngetc __P((void));
 194 int     cnischar __P((void));
 195 int     cnspeed __P((dev_t, int));
 196 u_int   sleep __P((u_int));
 197 void    usleep __P((u_int));
 198 char *ctime __P((const time_t *));
 199
 200 void    putchar __P((int));
 201 int     getchar __P((void));
 202
 203 #ifdef __INTERNAL_LIBSA_CREAD
 204 int     oopen __P((const char *, int));
 205 int     oclose __P((int));
 206 ssize_t oread __P((int, void *, size_t));
 207 off_t   olseek __P((int, off_t, int));
 208 #endif
 209
 210 /* Machine dependent functions */
 211 int     devopen __P((struct open_file *, const char *, char **));
 212 void    machdep_start __P((char *, int, char *, char *, char *));
 213 time_t  getsecs __P((void));
 214