1 /* $NetBSD: tc_dma.c,v 1.10 2001/07/19 06:40:02 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 41 42 __KERNEL_RCSID(0, "$NetBSD: tc_dma.c,v 1.10 2001/07/19 06:40:02 thorpej Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/device.h> 46 47 #define _ALPHA_BUS_DMA_PRIVATE 48 #include <machine/bus.h> 49 50 #include <dev/tc/tcvar.h> 51 52 struct alpha_bus_dma_tag tc_dmat_direct = { 53 NULL, /* _cookie */ 54 0, /* _wbase */ 55 0, /* _wsize */ 56 NULL, /* _next_window */ 57 0, /* _boundary */ 58 NULL, /* _sgmap */ 59 0, /* _pfthresh */ 60 NULL, /* _get_tag */ 61 _bus_dmamap_create, 62 _bus_dmamap_destroy, 63 _bus_dmamap_load_direct, 64 _bus_dmamap_load_mbuf_direct, 65 _bus_dmamap_load_uio_direct, 66 _bus_dmamap_load_raw_direct, 67 _bus_dmamap_unload, 68 _bus_dmamap_sync, 69 _bus_dmamem_alloc, 70 _bus_dmamem_free, 71 _bus_dmamem_map, 72 _bus_dmamem_unmap, 73 _bus_dmamem_mmap, 74 }; 75 76 void 77 tc_dma_init() 78 { 79 80 /* XXX XXX BEGIN XXX XXX */ 81 { /* XXX */ 82 extern paddr_t alpha_XXX_dmamap_or; /* XXX */ 83 alpha_XXX_dmamap_or = 0; /* XXX */ 84 } /* XXX */ 85 /* XXX XXX END XXX XXX */ 86 } 87