1/**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19#ifndef _ASM_GENERIC_IOCTL_H 20#define _ASM_GENERIC_IOCTL_H 21#define _IOC_NRBITS 8 22#define _IOC_TYPEBITS 8 23/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24#define _IOC_SIZEBITS 14 25#define _IOC_DIRBITS 2 26#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) 27#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) 28/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) 30#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) 31#define _IOC_NRSHIFT 0 32#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) 33/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) 35#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) 36#define _IOC_NONE 0U 37#define _IOC_WRITE 1U 38/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39#define _IOC_READ 2U 40#define _IOC(dir,type,nr,size) (((dir) << _IOC_DIRSHIFT) | ((type) << _IOC_TYPESHIFT) | ((nr) << _IOC_NRSHIFT) | ((size) << _IOC_SIZESHIFT)) 41extern unsigned int __invalid_size_argument_for_IOC; 42#define _IOC_TYPECHECK(t) ((sizeof(t) == sizeof(t[1]) && sizeof(t) < (1 << _IOC_SIZEBITS)) ? sizeof(t) : __invalid_size_argument_for_IOC) 43/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) 45#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) 46#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) 47#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) 48/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49#define _IOR_BAD(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) 50#define _IOW_BAD(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) 51#define _IOWR_BAD(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) 52#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) 53/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) 55#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) 56#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) 57#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) 58/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) 60#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) 61#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT) 62#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) 63/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64#endif 65