1 /* $OpenBSD: isadmavar.h,v 1.15 2004/04/20 15:04:10 pvalchev Exp $ */ 2 /* $NetBSD: isadmavar.h,v 1.10 1997/08/04 22:13:33 augustss Exp $ */ 3 4 /*- 5 * Copyright (c) 1997 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 #ifndef _DEV_ISA_ISADMAVAR_H 42 #define _DEV_ISA_ISADMAVAR_H 43 44 /* XXX for now... */ 45 #ifndef __ISADMA_COMPAT 46 #define __ISADMA_COMPAT 47 #endif /* __ISADMA_COMPAT */ 48 49 #ifdef __ISADMA_COMPAT 50 51 /* XXX ugly.. but it's a deprecated API that uses it so it will go.. */ 52 extern struct device *isa_dev; 53 54 #define isadma_acquire(c) isa_dma_acquire(isa_dev, (c)) 55 #define isadma_release(c) isa_dma_release(isa_dev, (c)) 56 #define isadma_cascade(c) isa_dmacascade(isa_dev, (c)) 57 #define isadma_start(a, s, c, f) \ 58 isa_dmastart(isa_dev, (c), (a), (s), 0, (f), BUS_DMA_WAITOK|BUS_DMA_BUS1) 59 #define isadma_abort(c) isa_dmaabort(isa_dev, (c)) 60 #define isadma_finished(c) isa_dmafinished(isa_dev, (c)) 61 #define isadma_done(c) isa_dmadone(isa_dev, (c)) 62 63 #endif /* __ISADMA_COMPAT */ 64 65 #define MAX_ISADMA 65536 66 67 #define DMAMODE_WRITE 0 68 #define DMAMODE_READ 1 69 #define DMAMODE_LOOP 2 70 71 struct proc; 72 73 void isa_dmacascade(struct device *, int); 74 75 int isa_dmamap_create(struct device *, int, bus_size_t, int); 76 void isa_dmamap_destroy(struct device *, int); 77 78 int isa_dmastart(struct device *, int, void *, bus_size_t, 79 struct proc *, int, int); 80 void isa_dmaabort(struct device *, int); 81 bus_size_t isa_dmacount(struct device *, int); 82 int isa_dmafinished(struct device *, int); 83 void isa_dmadone(struct device *, int); 84 85 int isa_dmamem_alloc(struct device *, int, bus_size_t, 86 bus_addr_t *, int); 87 void isa_dmamem_free(struct device *, int, bus_addr_t, bus_size_t); 88 int isa_dmamem_map(struct device *, int, bus_addr_t, bus_size_t, 89 caddr_t *, int); 90 void isa_dmamem_unmap(struct device *, int, caddr_t, size_t); 91 int isa_dmamem_mmap(struct device *, int, bus_addr_t, bus_size_t, 92 int, int, int); 93 94 int isa_drq_isfree(struct device *, int); 95 96 void *isa_malloc(struct device *, int, size_t, int, int); 97 void isa_free(void *, int); 98 paddr_t isa_mappage(void *, off_t, int); 99 100 #endif /* _DEV_ISA_ISADMAVAR_H */ 101