#ifndef HALIDE_RUNTIME_ANDROID_IOCTL_H
#define HALIDE_RUNTIME_ANDROID_IOCTL_H

#define _IOC_NRBITS 8
#define _IOC_TYPEBITS 8
#define _IOC_SIZEBITS 14
#define _IOC_DIRBITS 2

#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)

#define _IOC_NONE 0U
#define _IOC_WRITE 1U
#define _IOC_READ 2U

#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,data) _IOC(_IOC_READ,(type),(nr),(sizeof(data)))
#define _IOW(type,nr,data) _IOC(_IOC_WRITE,(type),(nr),(sizeof(data)))
#define _IOWR(type,nr,data) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(sizeof(data)))

#define _IOR_BAD(type,nr,data) _IOC(_IOC_READ,(type),(nr),sizeof(data))
#define _IOW_BAD(type,nr,data) _IOC(_IOC_WRITE,(type),(nr),sizeof(data))
#define _IOWR_BAD(type,nr,data) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(data))

#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