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/* $OpenBSD: isadmavar.h,v 1.11 1998/01/20 18:40:31 niklas Exp $ */
/* $NetBSD: isadmavar.h,v 1.10 1997/08/04 22:13:33 augustss Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/* XXX for now... */
#ifndef __ISADMA_COMPAT
#define __ISADMA_COMPAT
#endif /* __ISADMA_COMPAT */
#ifdef __ISADMA_COMPAT
/* XXX ugly.. but it's a deprecated API that uses it so it will go.. */
extern struct device *isa_dev;
#define ISADMA_MAP_WAITOK 0x0001 /* OK for isadma_map to sleep */
#define ISADMA_MAP_BOUNCE 0x0002 /* use bounce buffer if necessary */
#define ISADMA_MAP_CONTIG 0x0004 /* must be physically contiguous */
#define ISADMA_MAP_8BIT 0x0008 /* must not cross 64k boundary */
#define ISADMA_MAP_16BIT 0x0010 /* must not cross 128k boundary */
struct isadma_seg { /* a physical contiguous segment */
vm_offset_t addr; /* address of this segment */
vm_size_t length; /* length of this segment (bytes) */
bus_dmamap_t dmam; /* DMA handle for bus_dma routines. */
};
int isadma_map __P((caddr_t, vm_size_t, struct isadma_seg *, int));
void isadma_unmap __P((caddr_t, vm_size_t, int, struct isadma_seg *));
void isadma_copytobuf __P((caddr_t, vm_size_t, int, struct isadma_seg *));
void isadma_copyfrombuf __P((caddr_t, vm_size_t, int, struct isadma_seg *));
#define isadma_acquire(c) isa_dma_acquire(isa_dev, (c))
#define isadma_release(c) isa_dma_release(isa_dev, (c))
#define isadma_cascade(c) isa_dmacascade(isa_dev, (c))
#define isadma_start(a, s, c, f) \
isa_dmastart(isa_dev, (c), (a), (s), 0, (f), BUS_DMA_WAITOK|BUS_DMA_BUS1)
#define isadma_abort(c) isa_dmaabort(isa_dev, (c))
#define isadma_finished(c) isa_dmafinished(isa_dev, (c))
#define isadma_done(c) isa_dmadone(isa_dev, (c))
#endif /* __ISADMA_COMPAT */
#define MAX_ISADMA 65536
#define DMAMODE_WRITE 0
#define DMAMODE_READ 1
#define DMAMODE_LOOP 2
struct proc;
void isa_dmacascade __P((struct device *, int));
int isa_dmamap_create __P((struct device *, int, bus_size_t, int));
void isa_dmamap_destroy __P((struct device *, int));
int isa_dmastart __P((struct device *, int, void *, bus_size_t,
struct proc *, int, int));
void isa_dmaabort __P((struct device *, int));
bus_size_t isa_dmacount __P((struct device *, int));
int isa_dmafinished __P((struct device *, int));
void isa_dmadone __P((struct device *, int));
int isa_dmamem_alloc __P((struct device *, int, bus_size_t,
bus_addr_t *, int));
void isa_dmamem_free __P((struct device *, int, bus_addr_t, bus_size_t));
int isa_dmamem_map __P((struct device *, int, bus_addr_t, bus_size_t,
caddr_t *, int));
void isa_dmamem_unmap __P((struct device *, int, caddr_t, size_t));
int isa_dmamem_mmap __P((struct device *, int, bus_addr_t, bus_size_t,
int, int, int));
int isa_drq_isfree __P((struct device *, int));
void *isa_malloc __P((struct device *, int, size_t, int, int));
void isa_free __P((void *, int));
int isa_mappage __P((void *, int, int));
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