1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2000-2001 by Coleman Kane <cokane@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Gardner Buchanan. 18 * 4. The name of Gardner Buchanan may not be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 36 /* This code originally came from <shocking@prth.pgs.com> 37 * it is basically a derivative of some sys/dhio.h file to work with the 3dfx 38 * cards 39 */ 40 #ifndef TDFX_IO_H 41 #define TDFX_IO_H 42 43 #ifndef KERNEL 44 #include <sys/types.h> 45 #endif 46 47 /* 48 * define an ioctl here 49 */ 50 #define DHIOCRESET _IO('D', 0) /* reset the voodoo device */ 51 #define GETVOODOO 0x3302 52 #define SETVOODOO 0x3303 53 #define MOREVOODOO 0x3300 54 #define _IOC_NRBITS 8 55 #define _IOC_TYPEBITS 8 56 #define _IOC_SIZEBITS 14 57 #define _IOC_DIRBITS 2 58 59 #define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) 60 #define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) 61 #define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) 62 #define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) 63 64 #define _IOC_NRSHIFT 0 65 #define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) 66 #define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) 67 #define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) 68 69 /* 70 * Direction bits. 71 */ 72 #define _IOC_NONE 0U 73 #define _IOC_WRITE 1U 74 #define _IOC_READ 2U 75 76 #define _IOCV(dir,type,nr,size) \ 77 (((dir) << _IOC_DIRSHIFT) | \ 78 ((type) << _IOC_TYPESHIFT) | \ 79 ((nr) << _IOC_NRSHIFT) | \ 80 ((size) << _IOC_SIZESHIFT)) 81 82 /* used to create numbers */ 83 #define _IOV(type,nr) _IOCV(_IOC_NONE,(type),(nr),0) 84 #define _IORV(type,nr,size) _IOCV(_IOC_READ,(type),(nr),sizeof(size)) 85 #define _IOWV(type,nr,size) _IOCV(_IOC_WRITE,(type),(nr),sizeof(size)) 86 #define _IOWRV(type,nr,size) _IOCV(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) 87 88 /* used to decode ioctl numbers.. */ 89 #define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) 90 #define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) 91 #define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) 92 #define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) 93 94 /* ...and for the drivers/sound files... */ 95 96 #define IOCV_IN (_IOC_WRITE << _IOC_DIRSHIFT) 97 #define IOCV_OUT (_IOC_READ << _IOC_DIRSHIFT) 98 #define IOCV_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) 99 #define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT) 100 #define IOCSIZE_SHIFT (_IOC_SIZESHIFT) 101 102 #endif 103