diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-sparc64/ioctl.h | 68 |
1 files changed, 1 insertions, 67 deletions
diff --git a/include/asm-sparc64/ioctl.h b/include/asm-sparc64/ioctl.h index d634c21..18fc562 100644 --- a/include/asm-sparc64/ioctl.h +++ b/include/asm-sparc64/ioctl.h @@ -1,67 +1 @@ -#ifndef _SPARC64_IOCTL_H -#define _SPARC64_IOCTL_H - -/* - * Our DIR and SIZE overlap in order to simulteneously provide - * a non-zero _IOC_NONE (for binary compatibility) and - * 14 bits of size as on i386. Here's the layout: - * - * 0xE0000000 DIR - * 0x80000000 DIR = WRITE - * 0x40000000 DIR = READ - * 0x20000000 DIR = NONE - * 0x3FFF0000 SIZE (overlaps NONE bit) - * 0x0000FF00 TYPE - * 0x000000FF NR (CMD) - */ - -#define _IOC_NRBITS 8 -#define _IOC_TYPEBITS 8 -#define _IOC_SIZEBITS 13 /* Actually 14, see below. */ -#define _IOC_DIRBITS 3 - -#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) -#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) -#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) -#define _IOC_XSIZEMASK ((1 << (_IOC_SIZEBITS+1))-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_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS) - -#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 _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) - -/* Used to decode ioctl numbers in drivers despite the leading underscore... */ -#define _IOC_DIR(nr) \ - ( (((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) != 0)? \ - (((nr) >> _IOC_DIRSHIFT) & (_IOC_WRITE|_IOC_READ)): \ - (((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_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) == 0)? \ - 0: (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK)) - -/* ...and for the PCMCIA and sound. */ -#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) -#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) -#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) -#define IOCSIZE_MASK (_IOC_XSIZEMASK << _IOC_SIZESHIFT) -#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) - -#endif /* !(_SPARC64_IOCTL_H) */ +#include <asm-sparc/ioctl.h> |
