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/* $FreeBSD$ */
/*
* This is part of the Driver for Video Capture Cards (Frame grabbers)
* and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
* chipset.
* Copyright Roger Hardiman and Amancio Hasty.
*
* bktr_os : This has all the Operating System dependant code.
*
*/
/*
* 1. Redistributions of source code must retain the
* Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Amancio Hasty and
* Roger Hardiman
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/******************************/
/* *** Memory Allocation *** */
/******************************/
#if (defined(__FreeBSD__) || defined(__bsdi__))
vm_offset_t get_bktr_mem( int unit, unsigned size );
#endif
#if (defined(__NetBSD__) || defined(__OpenBSD__))
vm_offset_t get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size);
void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vm_offset_t);
#endif
/************************************/
/* *** Interrupt Enable/Disable *** */
/************************************/
#if defined(__FreeBSD__)
#if (__FreeBSD_version >=500000)
#define DECLARE_INTR_MASK(s) /* no need to declare 's' */
#define DISABLE_INTR(s) critical_enter()
#define ENABLE_INTR(s) critical_exit()
#else
#define DECLARE_INTR_MASK(s) intrmask_t s
#define DISABLE_INTR(s) s=spltty()
#define ENABLE_INTR(s) splx(s)
#endif
#else
#define DECLARE_INTR_MASK(s) /* no need to declare 's' */
#define DISABLE_INTR(s) disable_intr()
#define ENABLE_INTR(s) enable_intr()
#endif
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