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