bktr_os.h revision 74903
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.h 74903 2001-03-28 03:06:10Z jhb $ */ 2 3/* 4 * This is part of the Driver for Video Capture Cards (Frame grabbers) 5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 6 * chipset. 7 * Copyright Roger Hardiman and Amancio Hasty. 8 * 9 * bktr_os : This has all the Operating System dependant code. 10 * 11 */ 12 13/* 14 * 1. Redistributions of source code must retain the 15 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 16 * All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions 20 * are met: 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer. 23 * 2. Redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in the 25 * documentation and/or other materials provided with the distribution. 26 * 3. All advertising materials mentioning features or use of this software 27 * must display the following acknowledgement: 28 * This product includes software developed by Amancio Hasty and 29 * Roger Hardiman 30 * 4. The name of the author may not be used to endorse or promote products 31 * derived from this software without specific prior written permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 34 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 35 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 36 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 37 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 38 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 39 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 42 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 43 * POSSIBILITY OF SUCH DAMAGE. 44 */ 45 46 47/******************************/ 48/* *** Memory Allocation *** */ 49/******************************/ 50#if (defined(__FreeBSD__) || defined(__bsdi__)) 51vm_offset_t get_bktr_mem( int unit, unsigned size ); 52#endif 53 54#if (defined(__NetBSD__) || defined(__OpenBSD__)) 55vm_offset_t get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size); 56void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vm_offset_t); 57#endif 58 59/************************************/ 60/* *** Interrupt Enable/Disable *** */ 61/************************************/ 62#if defined(__FreeBSD__) 63#if (__FreeBSD_version >=500000) 64#define DECLARE_INTR_MASK(s) critical_t s 65#define DISABLE_INTR(s) s = critical_enter() 66#define ENABLE_INTR(s) critical_exit(s) 67#else 68#define DECLARE_INTR_MASK(s) intrmask_t s 69#define DISABLE_INTR(s) s=spltty() 70#define ENABLE_INTR(s) splx(s) 71#endif 72#else 73#define DECLARE_INTR_MASK(s) /* no need to declare 's' */ 74#define DISABLE_INTR(s) disable_intr() 75#define ENABLE_INTR(s) enable_intr() 76#endif 77 78 79