1 /* $FreeBSD$ */ 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 dependent code. 10 * 11 */ 12 13 /*- 14 * SPDX-License-Identifier: BSD-4-Clause 15 * 16 * 1. Redistributions of source code must retain the 17 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 18 * All rights reserved. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 3. All advertising materials mentioning features or use of this software 29 * must display the following acknowledgement: 30 * This product includes software developed by Amancio Hasty and 31 * Roger Hardiman 32 * 4. The name of the author may not be used to endorse or promote products 33 * derived from this software without specific prior written permission. 34 * 35 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 36 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 37 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 38 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 39 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 40 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 41 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 42 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 43 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 44 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 45 * POSSIBILITY OF SUCH DAMAGE. 46 */ 47 48 49 /******************************/ 50 /* *** Memory Allocation *** */ 51 /******************************/ 52 #if (defined(__FreeBSD__) || defined(__bsdi__)) 53 vm_offset_t get_bktr_mem( int unit, unsigned size ); 54 #endif 55 56 #if (defined(__NetBSD__) || defined(__OpenBSD__)) 57 vm_offset_t get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size); 58 void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vm_offset_t); 59 #endif 60 61 /************************************/ 62 /* *** Interrupt Enable/Disable *** */ 63 /************************************/ 64 #if defined(__FreeBSD__) 65 #if (__FreeBSD_version >=500000) 66 #define USE_VBIMUTEX 67 #define DECLARE_INTR_MASK(s) /* no need to declare 's' */ 68 #define DISABLE_INTR(s) 69 #define ENABLE_INTR(s) 70 #else 71 #define DECLARE_INTR_MASK(s) intrmask_t s 72 #define DISABLE_INTR(s) s=spltty() 73 #define ENABLE_INTR(s) splx(s) 74 #endif 75 #else 76 #define DECLARE_INTR_MASK(s) /* no need to declare 's' */ 77 #define DISABLE_INTR(s) disable_intr() 78 #define ENABLE_INTR(s) enable_intr() 79 #endif 80 81 #ifdef USE_VBIMUTEX 82 #define LOCK_VBI(bktr) mtx_lock(&bktr->vbimutex) 83 #define UNLOCK_VBI(bktr) mtx_unlock(&bktr->vbimutex) 84 #else 85 #define LOCK_VBI(bktr) 86 #define UNLOCK_VBI(bktr) 87 #endif 88