1 /* $OpenBSD: isadmavar.h,v 1.16 2008/06/26 05:42:16 ray 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _DEV_ISA_ISADMAVAR_H 35 #define _DEV_ISA_ISADMAVAR_H 36 37 /* XXX for now... */ 38 #ifndef __ISADMA_COMPAT 39 #define __ISADMA_COMPAT 40 #endif /* __ISADMA_COMPAT */ 41 42 #ifdef __ISADMA_COMPAT 43 44 /* XXX ugly.. but it's a deprecated API that uses it so it will go.. */ 45 extern struct device *isa_dev; 46 47 #define isadma_acquire(c) isa_dma_acquire(isa_dev, (c)) 48 #define isadma_release(c) isa_dma_release(isa_dev, (c)) 49 #define isadma_cascade(c) isa_dmacascade(isa_dev, (c)) 50 #define isadma_start(a, s, c, f) \ 51 isa_dmastart(isa_dev, (c), (a), (s), 0, (f), BUS_DMA_WAITOK|BUS_DMA_BUS1) 52 #define isadma_abort(c) isa_dmaabort(isa_dev, (c)) 53 #define isadma_finished(c) isa_dmafinished(isa_dev, (c)) 54 #define isadma_done(c) isa_dmadone(isa_dev, (c)) 55 56 #endif /* __ISADMA_COMPAT */ 57 58 #define MAX_ISADMA 65536 59 60 #define DMAMODE_WRITE 0 61 #define DMAMODE_READ 1 62 #define DMAMODE_LOOP 2 63 64 struct proc; 65 66 void isa_dmacascade(struct device *, int); 67 68 int isa_dmamap_create(struct device *, int, bus_size_t, int); 69 void isa_dmamap_destroy(struct device *, int); 70 71 int isa_dmastart(struct device *, int, void *, bus_size_t, 72 struct proc *, int, int); 73 void isa_dmaabort(struct device *, int); 74 bus_size_t isa_dmacount(struct device *, int); 75 int isa_dmafinished(struct device *, int); 76 void isa_dmadone(struct device *, int); 77 78 int isa_dmamem_alloc(struct device *, int, bus_size_t, 79 bus_addr_t *, int); 80 void isa_dmamem_free(struct device *, int, bus_addr_t, bus_size_t); 81 int isa_dmamem_map(struct device *, int, bus_addr_t, bus_size_t, 82 caddr_t *, int); 83 void isa_dmamem_unmap(struct device *, int, caddr_t, size_t); 84 int isa_dmamem_mmap(struct device *, int, bus_addr_t, bus_size_t, 85 int, int, int); 86 87 int isa_drq_isfree(struct device *, int); 88 89 void *isa_malloc(struct device *, int, size_t, int, int); 90 void isa_free(void *, int); 91 paddr_t isa_mappage(void *, off_t, int); 92 93 #endif /* _DEV_ISA_ISADMAVAR_H */ 94