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
7 * Copyright Roger Hardiman and Amancio Hasty.
9 * bktr_os : This has all the Operating System dependent code.
14 * SPDX-License-Identifier: BSD-4-Clause
16 * 1. Redistributions of source code must retain the
17 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
18 * All rights reserved.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
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
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.
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.
49 /******************************/
50 /* *** Memory Allocation *** */
51 /******************************/
52 #if (defined(__FreeBSD__) || defined(__bsdi__))
53 vm_offset_t get_bktr_mem( int unit, unsigned size );
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);
61 /************************************/
62 /* *** Interrupt Enable/Disable *** */
63 /************************************/
64 #if defined(__FreeBSD__)
65 #if (__FreeBSD_version >=500000)
67 #define DECLARE_INTR_MASK(s) /* no need to declare 's' */
68 #define DISABLE_INTR(s)
69 #define ENABLE_INTR(s)
71 #define DECLARE_INTR_MASK(s) intrmask_t s
72 #define DISABLE_INTR(s) s=spltty()
73 #define ENABLE_INTR(s) splx(s)
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()
82 #define LOCK_VBI(bktr) mtx_lock(&bktr->vbimutex)
83 #define UNLOCK_VBI(bktr) mtx_unlock(&bktr->vbimutex)
85 #define LOCK_VBI(bktr)
86 #define UNLOCK_VBI(bktr)