1 /* $OpenBSD: usb_mem.h,v 1.8 2000/11/08 18:10:39 aaron Exp $ */ 2 /* $NetBSD: usb_mem.h,v 1.15 2000/06/28 16:39:27 mrg Exp $ */ 3 /* $FreeBSD: src/sys/dev/usb/usb_mem.h,v 1.9 1999/11/17 22:33:47 n_hibma Exp $ */ 4 5 /* 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Lennart Augustsson (lennart@augustsson.net) at 11 * Carlstedt Research & Technology. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the NetBSD 24 * Foundation, Inc. and its contributors. 25 * 4. Neither the name of The NetBSD Foundation nor the names of its 26 * contributors may be used to endorse or promote products derived 27 * from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 #if defined(__NetBSD__) || defined(__OpenBSD__) 43 typedef struct usb_dma_block { 44 bus_dma_tag_t tag; 45 bus_dmamap_t map; 46 caddr_t kaddr; 47 bus_dma_segment_t segs[1]; 48 int nsegs; 49 size_t size; 50 size_t align; 51 int fullblock; 52 LIST_ENTRY(usb_dma_block) next; 53 } usb_dma_block_t; 54 55 #define DMAADDR(dma) ((dma)->block->map->dm_segs[0].ds_addr + (dma)->offs) 56 #define KERNADDR(dma) ((void *)((dma)->block->kaddr + (dma)->offs)) 57 58 usbd_status usb_allocmem(usbd_bus_handle,size_t,size_t, usb_dma_t *); 59 void usb_freemem(usbd_bus_handle, usb_dma_t *); 60 61 #elif defined(__FreeBSD__) 62 63 /* 64 * FreeBSD does not have special functions for dma memory, so let's keep it 65 * simple for now. 66 */ 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/queue.h> 71 #include <sys/proc.h> 72 #include <sys/buf.h> 73 #include <sys/malloc.h> 74 #include <sys/kernel.h> 75 #include <vm/vm.h> 76 77 #define usb_allocmem(t,s,a,p) (*(p) = malloc(s, M_USB, M_NOWAIT), (*(p) == NULL? USBD_NOMEM: USBD_NORMAL_COMPLETION)) 78 #define usb_freemem(t,p) (free(*(p), M_USB)) 79 80 #ifdef __alpha__ 81 #define DMAADDR(dma) (alpha_XXX_dmamap((vm_offset_t) *(dma))) 82 #else 83 #define DMAADDR(dma) (vtophys(*(dma))) 84 #endif 85 #define KERNADDR(dma) ((void *) *(dma)) 86 #endif 87 88