sys/dev/pci/bktr/bktr_mem.h

   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 */
  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