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      1 /* $SourceForge: bktr_mem.h,v 1.2 2003/03/11 23:11:25 thomasklausner Exp $ */
      2 
      3 /*	$NetBSD: bktr_mem.h,v 1.2 2003/03/12 00:14:41 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 */
     63 int         bktr_has_stored_addresses(int unit);
     64 void        bktr_store_address(int unit, int type, vm_offset_t addr);
     65 vm_offset_t bktr_retrieve_address(int unit, int type);
     66 
     67