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/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef __sys_ioccom_h
#define __sys_ioccom_h
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Ioctl's have the command encoded in the lower word,
* and the size of any in or out parameters in the upper
* word. The high 2 bits of the upper word are used
* to encode the in/out status of the parameter; for now
* we restrict parameters to at most 255 bytes.
*/
#define _IOCPARM_MASK 0xff /* parameters must be < 256 bytes */
#define _IOC_VOID 0x20000000 /* no parameters */
#define _IOC_OUT 0x40000000 /* copy out parameters */
#define _IOC_IN 0x80000000 /* copy in parameters */
#define _IOC_INOUT (_IOC_IN|_IOC_OUT)
/* the 0x20000000 is so we can distinguish new ioctl's from old */
#define _IO(x,y) (_IOC_VOID|(x<<8)|y)
#define _IOR(x,y,t) (_IOC_OUT|((sizeof(t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
#define _IORN(x,y,t) (_IOC_OUT|(((t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
#define _IOW(x,y,t) (_IOC_IN|((sizeof(t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
#define _IOWN(x,y,t) (_IOC_IN|(((t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
/* this should be _IORW, but stdio got there first */
#define _IOWR(x,y,t) (_IOC_INOUT|((sizeof(t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
#define _IOWRN(x,y,t) (_IOC_INOUT|(((t)&_IOCPARM_MASK)<<16)|(x<<8)|y)
/*
* Registry of ioctl characters, culled from system sources
*
* char file where defined notes
* ---- ------------------ -----
* F sun/fbio.h
* G sun/gpio.h
* H vaxif/if_hy.h
* M sundev/mcpcmd.h *overlap*
* M sys/modem.h *overlap*
* S sys/stropts.h
* T sys/termio.h -no overlap-
* T sys/termios.h -no overlap-
* V sundev/mdreg.h
* a vaxuba/adreg.h
* d sun/dkio.h -no overlap with sys/des.h-
* d sys/des.h (possible overlap)
* d vax/dkio.h (possible overlap)
* d vaxuba/rxreg.h (possible overlap)
* f sys/filio.h
* g sunwindow/win_ioctl.h -no overlap-
* g sunwindowdev/winioctl.c !no manifest constant! -no overlap-
* h sundev/hrc_common.h
* i sys/sockio.h *overlap*
* i vaxuba/ikreg.h *overlap*
* k sundev/kbio.h
* m sundev/msio.h (possible overlap)
* m sundev/msreg.h (possible overlap)
* m sys/mtio.h (possible overlap)
* n sun/ndio.h
* p net/nit_buf.h (possible overlap)
* p net/nit_if.h (possible overlap)
* p net/nit_pf.h (possible overlap)
* p sundev/fpareg.h (possible overlap)
* p sys/sockio.h (possible overlap)
* p vaxuba/psreg.h (possible overlap)
* q sun/sqz.h
* r sys/sockio.h
* s sys/sockio.h
* t sys/ttold.h (possible overlap)
* t sys/ttycom.h (possible overlap)
* v sundev/vuid_event.h *overlap*
* v sys/vcmd.h *overlap*
*
* End of Registry
*/
#endif /* !__sys_ioccom_h */
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