/**************************************************************************** **************************************************************************** *** *** This header was automatically generated from a Linux kernel header *** of the same name, to make information necessary for userspace to *** call into the kernel available to libc. It contains only constants, *** structures, and macros generated from the original header, and thus, *** contains no copyrightable information. *** *** To edit the content of this header, modify the corresponding *** source file (e.g. under external/kernel-headers/original/) then *** run bionic/libc/kernel/tools/update_all.py *** *** Any manual change here will be lost the next time this script will *** be run. You've been warned! *** **************************************************************************** ****************************************************************************/ #ifndef _UAPI_ASM_GENERIC_IOCTL_H #define _UAPI_ASM_GENERIC_IOCTL_H #define _IOC_NRBITS 8 #define _IOC_TYPEBITS 8 #ifndef _IOC_SIZEBITS #define _IOC_SIZEBITS 14 #endif #ifndef _IOC_DIRBITS #define _IOC_DIRBITS 2 #endif #define _IOC_NRMASK ((1 << _IOC_NRBITS) - 1) #define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS) - 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_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS) #ifndef _IOC_NONE #define _IOC_NONE 0U #endif #ifndef _IOC_WRITE #define _IOC_WRITE 1U #endif #ifndef _IOC_READ #define _IOC_READ 2U #endif #define _IOC(dir,type,nr,size) (((dir) << _IOC_DIRSHIFT) | ((type) << _IOC_TYPESHIFT) | ((nr) << _IOC_NRSHIFT) | ((size) << _IOC_SIZESHIFT)) #define _IOC_TYPECHECK(t) (sizeof(t)) #define _IO(type,nr) _IOC(_IOC_NONE, (type), (nr), 0) #define _IOR(type,nr,size) _IOC(_IOC_READ, (type), (nr), (_IOC_TYPECHECK(size))) #define _IOW(type,nr,size) _IOC(_IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(size))) #define _IOWR(type,nr,size) _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(size))) #define _IOR_BAD(type,nr,size) _IOC(_IOC_READ, (type), (nr), sizeof(size)) #define _IOW_BAD(type,nr,size) _IOC(_IOC_WRITE, (type), (nr), sizeof(size)) #define _IOWR_BAD(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) #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_SIZEMASK << _IOC_SIZESHIFT) #define IOCSIZE_SHIFT (_IOC_SIZESHIFT) #endif