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bktr_os.h revision 1.2 
      1 /*	$NetBSD: bktr_os.h,v 1.2 2000/10/28 14:50:28 wiz Exp $	*/
      2 
      3 /* FreeBSD: src/sys/dev/bktr/bktr_os.h,v 1.4 2000/04/16 07:56:58 roger Exp */
      4 
      5 /*
      6  * This is part 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 and Amancio Hasty.
     10  *
     11  * bktr_os : This has all the Operating System dependant code.
     12  *
     13  */
     14 
     15 /*
     16  * 1. Redistributions of source code must retain the
     17  * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
     18  * All rights reserved.
     19  *
     20  * Redistribution and use in source and binary forms, with or without
     21  * modification, are permitted provided that the following conditions
     22  * are met:
     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
     31  *      Roger Hardiman
     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.
     34  *
     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.
     46  */
     47 
     48 
     49 /******************************/
     50 /* *** Memory Allocation  *** */
     51 /******************************/
     52 #if (defined(__FreeBSD__) || defined(__bsdi__))
     53 vm_offset_t     get_bktr_mem( int unit, unsigned size );
     54 #endif
     55 
     56 #if defined(__NetBSD__)
     57 vaddr_t         get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size);
     58 void            free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vaddr_t);
     59 #endif
     60 
     61 #if defined(__OpenBSD__)
     62 vm_offset_t     get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size);
     63 void            free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vm_offset_t);
     64 #endif
     65 
     66 /************************************/
     67 /* *** Interrupt Enable/Disable *** */
     68 /************************************/
     69 #if defined(__FreeBSD__)
     70 #define DECLARE_INTR_MASK(s)	intrmask_t s
     71 #define DISABLE_INTR(s)		s=spltty()
     72 #define ENABLE_INTR(s)		splx(s)
     73 #else
     74 #define DECLARE_INTR_MASK(s)	/* no need to declare 's' */
     75 #define DISABLE_INTR(s)		disable_intr()
     76 #define ENABLE_INTR(s)		enable_intr()
     77 #endif
     78 
     79 
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