dev/usb/usb_mem.h

1.32.4.2   thorpej /*	$NetBSD: usb_mem.h,v 1.32.4.2 2021/04/03 22:28:50 thorpej Exp $	*/
    1.11  augustss /*	$FreeBSD: src/sys/dev/usb/usb_mem.h,v 1.9 1999/11/17 22:33:47 n_hibma Exp $	*/
     1.1  augustss
     1.1  augustss /*
     1.1  augustss  * Copyright (c) 1998 The NetBSD Foundation, Inc.
     1.1  augustss  * All rights reserved.
     1.1  augustss  *
     1.2  augustss  * This code is derived from software contributed to The NetBSD Foundation
    1.13  augustss  * by Lennart Augustsson (lennart (at) augustsson.net) at
     1.2  augustss  * Carlstedt Research & Technology.
     1.1  augustss  *
     1.1  augustss  * Redistribution and use in source and binary forms, with or without
     1.1  augustss  * modification, are permitted provided that the following conditions
     1.1  augustss  * are met:
     1.1  augustss  * 1. Redistributions of source code must retain the above copyright
     1.1  augustss  *    notice, this list of conditions and the following disclaimer.
     1.1  augustss  * 2. Redistributions in binary form must reproduce the above copyright
     1.1  augustss  *    notice, this list of conditions and the following disclaimer in the
     1.1  augustss  *    documentation and/or other materials provided with the distribution.
     1.1  augustss  *
     1.1  augustss  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     1.1  augustss  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     1.1  augustss  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     1.1  augustss  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     1.1  augustss  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     1.1  augustss  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     1.1  augustss  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     1.1  augustss  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     1.1  augustss  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     1.1  augustss  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     1.1  augustss  * POSSIBILITY OF SUCH DAMAGE.
     1.1  augustss  */
     1.1  augustss
     1.6  augustss typedef struct usb_dma_block {
     1.1  augustss 	bus_dma_tag_t tag;
     1.1  augustss 	bus_dmamap_t map;
    1.31     skrll 	void *kaddr;
    1.31     skrll 	bus_dma_segment_t *segs;
    1.31     skrll 	int nsegs;
    1.31     skrll 	int nsegs_alloc;
    1.31     skrll 	size_t size;
    1.31     skrll 	size_t align;
    1.21      fvdl 	int flags;
    1.32     skrll #define USB_DMA_FULLBLOCK	__BIT(0)
    1.32     skrll #define USB_DMA_COHERENT	__BIT(1)
    1.32     skrll
     1.6  augustss 	LIST_ENTRY(usb_dma_block) next;
     1.1  augustss } usb_dma_block_t;
     1.1  augustss
    1.32     skrll #define USBMALLOC_MULTISEG	__BIT(0)
    1.32     skrll #define USBMALLOC_COHERENT	__BIT(1)
1.32.4.1   thorpej #define USBMALLOC_ZERO		__BIT(2)
     1.1  augustss
1.32.4.2   thorpej int		usb_allocmem(struct usbd_bus *, size_t, size_t, u_int, usb_dma_t *);
    1.31     skrll void		usb_freemem(struct usbd_bus *, usb_dma_t *);
    1.31     skrll void		usb_syncmem(usb_dma_t *, bus_addr_t, bus_size_t, int);
     1.3  augustss
    1.29     prlw1 bus_addr_t	usb_dmaaddr(usb_dma_t *, unsigned int);
    1.29     prlw1
    1.29     prlw1 #define DMAADDR(dma, o) usb_dmaaddr((dma), (o))
    1.29     prlw1 #define KERNADDR(dma, o) \
    1.31     skrll 	((void *)((char *)(dma)->udma_block->kaddr + (dma)->udma_offs + (o)))