patch-1.3.44 linux/include/asm-sparc/ioctl.h

• Lines: 44
• Date: Sat Nov 25 04:31:53 1995
• Orig file: v1.3.43/linux/include/asm-sparc/ioctl.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.43/linux/include/asm-sparc/ioctl.h linux/include/asm-sparc/ioctl.h
@@ -0,0 +1,43 @@
+/* $Id: ioctl.h,v 1.4 1995/11/25 02:31:52 davem Exp $ */
+#ifndef _SPARC_IOCTL_H
+#define _SPARC_IOCTL_H
+
+#define _IOC_NRBITS      8
+#define _IOC_TYPEBITS    8
+#define _IOC_SIZEBITS    8
+#define _IOC_RESVBITS    5
+#define _IOC_DIRBITS     3
+
+#define _IOC_NRMASK      ((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK    ((1 << _IOC_TYPEBITS)-1)
+#define _IOC_RESVMASK    ((1 << _IOC_RESVBITS)-1)
+#define _IOC_SIZEMASK    ((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK     ((1 << _IOC_DIRBITS)-1)
+
+#define _IOC_NRSHIFT     0
+#define _IOC_TYPESHIFT   (_IOC_NRSHIFT + _IOC_NRBITS)
+#define _IOC_SIZESHIFT   (_IOC_TYPESHIFT + _IOC_TYPEBITS)
+#define _IOC_RESVSHIFT   (_IOC_SIZESHIFT + _IOC_SIZEBITS)
+#define _IOC_DIRSHIFT    (_IOC_RESVSHIFT + _IOC_RESVBITS)
+
+#define _IOC_NONE        1U
+#define _IOC_READ        2U
+#define _IOC_WRITE       4U
+
+#define _IOC(dir,type,nr,size) \
+        (((dir)  << _IOC_DIRSHIFT) | \
+         ((type) << _IOC_TYPESHIFT) | \
+         ((nr)   << _IOC_NRSHIFT) | \
+         ((size) << _IOC_SIZESHIFT))
+
+#define _IO(type,nr)        _IOC(_IOC_NONE,(type),(nr),0)
+#define _IOR(type,nr,size)  _IOC(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOW(type,nr,size)  _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IORW(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+#define _IOC_DIR(nr)        (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
+#define _IOC_TYPE(nr)       (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)         (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
+#define _IOC_SIZE(nr)       (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
+
+#endif /* !(_SPARC_IOCTL_H) */