1 /*- 2 * Copyright (c) 2014, 2015 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _DEV_PROTO_DEV_H_ 30 #define _DEV_PROTO_DEV_H_ 31 32 #include <sys/ioccom.h> 33 34 #define PROTO_IOC_CLASS 'h' 35 36 struct proto_ioc_region { 37 unsigned long address; 38 unsigned long size; 39 }; 40 41 #define PROTO_IOC_REGION _IOWR(PROTO_IOC_CLASS, 1, struct proto_ioc_region) 42 43 struct proto_ioc_busdma { 44 unsigned int request; 45 #define PROTO_IOC_BUSDMA_TAG_CREATE 1 46 #define PROTO_IOC_BUSDMA_TAG_DERIVE 2 47 #define PROTO_IOC_BUSDMA_TAG_DESTROY 3 48 #define PROTO_IOC_BUSDMA_MEM_ALLOC 10 49 #define PROTO_IOC_BUSDMA_MEM_FREE 11 50 unsigned long key; 51 union { 52 struct { 53 unsigned long align; 54 unsigned long bndry; 55 unsigned long maxaddr; 56 unsigned long maxsz; 57 unsigned long maxsegsz; 58 unsigned int nsegs; 59 unsigned int datarate; 60 unsigned int flags; 61 } tag; 62 struct { 63 unsigned long tag; 64 unsigned int flags; 65 unsigned int phys_nsegs; 66 unsigned long phys_addr; 67 unsigned long bus_addr; 68 unsigned int bus_nsegs; 69 } mem; 70 } u; 71 unsigned long result; 72 }; 73 74 #define PROTO_IOC_BUSDMA _IOWR(PROTO_IOC_CLASS, 2, struct proto_ioc_busdma) 75 76 #endif /* _DEV_PROTO_H_ */ 77