1/* $SourceForge: bktr_mem.h,v 1.2 2003/03/11 23:11:25 thomasklausner Exp $ */
2
3/*	$NetBSD: bktr_mem.h,v 1.1.1.2 2003/03/12 00:02:32 wiz Exp $	*/
4/* $FreeBSD: src/sys/dev/bktr/bktr_mem.h,v 1.1 2000/09/10 14:34:08 roger Exp$ */
5
6/*
7 * This is prt of the Driver for Video Capture Cards (Frame grabbers)
8 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
9 * chipset.
10 * Copyright Roger Hardiman.
11 *
12 * bktr_mem : This kernel module allows us to keep our allocated
13 *            contiguous memory for the video buffer, DMA programs and VBI data
14 *            while the main bktr driver is unloaded and reloaded.
15 *            This avoids the problem of trying to allocate contiguous each
16 *            time the bktr driver is loaded.
17 */
18
19/*
20 * 1. Redistributions of source code must retain the
21 * Copyright (c) 2000 Roger Hardiman
22 * All rights reserved.
23 *
24 * Redistribution and use in source and binary forms, with or without
25 * modification, are permitted provided that the following conditions
26 * are met:
27 * 1. Redistributions of source code must retain the above copyright
28 *    notice, this list of conditions and the following disclaimer.
29 * 2. Redistributions in binary form must reproduce the above copyright
30 *    notice, this list of conditions and the following disclaimer in the
31 *    documentation and/or other materials provided with the distribution.
32 * 3. All advertising materials mentioning features or use of this software
33 *    must display the following acknowledgement:
34 *      This product includes software developed by Roger Hardiman
35 * 4. The name of the author may not be used to endorse or promote products
36 *    derived from this software without specific prior written permission.
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
40 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
41 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
42 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
43 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
44 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
46 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
47 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
48 * POSSIBILITY OF SUCH DAMAGE.
49 */
50
51
52/* Support this number of devices */
53#define BKTR_MEM_MAX_DEVICES	8
54
55/* Define a name for each block of memory we need to keep hold of */
56#define BKTR_MEM_DMA_PROG       1
57#define BKTR_MEM_ODD_DMA_PROG   2
58#define BKTR_MEM_VBIDATA        3
59#define BKTR_MEM_VBIBUFFER      4
60#define BKTR_MEM_BUF            5
61
62/* Prototypes */
63int         bktr_has_stored_addresses(int unit);
64void        bktr_store_address(int unit, int type, vm_offset_t addr);
65vm_offset_t bktr_retrieve_address(int unit, int type);
66
67