130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/* devices.h
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Copyright 2002 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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typedef unsigned short _major_t;
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typedef unsigned short _minor_t;
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typedef mode_t _mode_t;
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typedef __dev32_t _dev_t;
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#define FHDEV(maj, min) ((((unsigned) (maj)) << (sizeof (_major_t) * 8)) | (unsigned) (min))
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#define _minor(dev) ((dev) & ((1 << (sizeof (_minor_t) * 8)) - 1))
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#define _major(dev) ((dev) >> (sizeof (_major_t) * 8))
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enum fh_devices
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{
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FH_TTY = FHDEV (5, 0),
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FH_CONSOLE = FHDEV (5, 1),
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FH_PTYM = FHDEV (5, 2), /* /dev/ptmx */
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FH_CONIN = FHDEV (5, 255),
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FH_CONOUT = FHDEV (5, 254),
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DEV_TTYM_MAJOR = 128,
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FH_TTYM = FHDEV (DEV_TTYM_MAJOR, 0),
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FH_TTYM_MAX= FHDEV (DEV_TTYM_MAJOR, 255),
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DEV_TTYS_MAJOR = 136,
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FH_TTYS = FHDEV (DEV_TTYS_MAJOR, 0), /* FIXME: Should separate ttys and ptys */
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FH_TTYS_MAX= FHDEV (DEV_TTYS_MAJOR, 255), /* FIXME: Should separate ttys and ptys */
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DEV_SERIAL_MAJOR = 117,
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FH_SERIAL = FHDEV (117, 0), /* /dev/ttyS? */
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FH_WINDOWS = FHDEV (13, 255),
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FH_CLIPBOARD=FHDEV (13, 254),
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FH_PIPE = FHDEV (0, 255),
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FH_PIPER = FHDEV (0, 254),
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FH_PIPEW = FHDEV (0, 253),
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FH_FIFO = FHDEV (0, 252),
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FH_SOCKET = FHDEV (0, 251),
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FH_PROC = FHDEV (0, 250),
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FH_REGISTRY= FHDEV (0, 249),
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FH_PROCESS = FHDEV (0, 248),
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FH_FS = FHDEV (0, 247), /* filesystem based device */
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DEV_FLOPPY_MAJOR = 2,
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FH_FLOPPY = FHDEV (DEV_FLOPPY_MAJOR, 0),
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DEV_CDROM_MAJOR = 11,
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FH_CDROM = FHDEV (DEV_CDROM_MAJOR, 0),
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DEV_TAPE_MAJOR = 9,
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FH_TAPE = FHDEV (DEV_TAPE_MAJOR, 0),
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FH_NTAPE = FHDEV (DEV_TAPE_MAJOR, 128),
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FH_MAXNTAPE= FHDEV (DEV_TAPE_MAJOR, 255),
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DEV_SD_MAJOR = 8,
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FH_SD = FHDEV (8, 0),
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FH_MEM = FHDEV (1, 1),
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FH_KMEM = FHDEV (1, 2), /* not implemented yet */
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FH_NULL = FHDEV (1, 3),
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FH_ZERO = FHDEV (1, 4),
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FH_PORT = FHDEV (1, 5),
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FH_RANDOM = FHDEV (1, 8),
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FH_URANDOM = FHDEV (1, 9),
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FH_OSS_DSP = FHDEV (14, 3),
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DEV_CYGDRIVE_MAJOR = 30,
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FH_CYGDRIVE= FHDEV (DEV_CYGDRIVE_MAJOR, 0),
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FH_CYGDRIVE_A= FHDEV (DEV_CYGDRIVE_MAJOR, 'a'),
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FH_CYGDRIVE_Z= FHDEV (DEV_CYGDRIVE_MAJOR, 'z'),
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DEV_RAWDRIVE_MAJOR = 65,
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FH_RAWDRIVE= FHDEV (DEV_RAWDRIVE_MAJOR, 0),
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FH_BAD = 0
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};
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struct device
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{
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const char *name;
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union
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{
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_dev_t devn;
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struct
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{
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_minor_t minor;
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_major_t major;
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};
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};
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const char *fmt;
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unsigned lower, upper;
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int adjust;
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unsigned mul;
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_mode_t mode;
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bool dev_on_fs;
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static const device *lookup (const char *, unsigned int = 0xffffffff);
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void parse (const char *);
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void parse (_major_t major, _minor_t minor);
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void parse (_dev_t dev);
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inline bool setunit (unsigned n)
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{
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if (mul && n > mul)
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return false;
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minor += (n + adjust) * (mul ?: 1);
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return true;
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}
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static void init ();
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void tty_to_real_device ();
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inline operator int () const {return devn;}
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inline void setfs (bool x) {dev_on_fs = x;}
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inline bool isfs () const {return dev_on_fs;}
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};
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extern const device *console_dev;
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extern const device *piper_dev;
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extern const device *pipew_dev;
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extern const device *socket_dev;
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extern const device *ttym_dev;
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extern const device *ttys_dev;
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extern const device *urandom_dev;
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