1 /* $NetBSD: usb_mem.h,v 1.37 2022/03/03 06:09:11 riastradh Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/usb_mem.h,v 1.9 1999/11/17 22:33:47 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 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_USB_USB_MEM_H_ 35 #define _DEV_USB_USB_MEM_H_ 36 37 #include <sys/types.h> 38 39 #include <sys/bus.h> 40 #include <sys/queue.h> 41 42 #include <dev/usb/usbdivar.h> 43 44 typedef struct usb_dma_block { 45 bus_dma_tag_t tag; 46 bus_dmamap_t map; 47 void *kaddr; 48 bus_dma_segment_t *segs; 49 int nsegs; 50 int nsegs_alloc; 51 size_t size; 52 size_t align; 53 int flags; 54 #define USB_DMA_FULLBLOCK __BIT(0) 55 #define USB_DMA_COHERENT __BIT(1) 56 57 LIST_ENTRY(usb_dma_block) next; 58 } usb_dma_block_t; 59 60 #define USBMALLOC_MULTISEG __BIT(0) 61 #define USBMALLOC_COHERENT __BIT(1) 62 #define USBMALLOC_ZERO __BIT(2) 63 64 int usb_allocmem(bus_dma_tag_t, size_t, size_t, u_int, usb_dma_t *); 65 void usb_freemem(usb_dma_t *); 66 void usb_syncmem(usb_dma_t *, bus_addr_t, bus_size_t, int); 67 68 bus_addr_t usb_dmaaddr(usb_dma_t *, unsigned int); 69 70 #define DMAADDR(dma, o) usb_dmaaddr((dma), (o)) 71 #define KERNADDR(dma, o) \ 72 ((void *)((char *)(dma)->udma_block->kaddr + (dma)->udma_offs + (o))) 73 74 #endif /* _DEV_USB_USB_MEM_H_ */ 75