/*-
 * Copyright (c) 2014, 2015 Marcel Moolenaar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _DEV_PROTO_DEV_H_
#define _DEV_PROTO_DEV_H_

#include <sys/ioccom.h>

#define PROTO_IOC_CLASS 'h'

struct proto_ioc_region {
        unsigned long   address;
        unsigned long   size;
};

#define PROTO_IOC_REGION _IOWR(PROTO_IOC_CLASS, 1, struct proto_ioc_region)

struct proto_ioc_busdma {
        unsigned int    request;
#define PROTO_IOC_BUSDMA_TAG_CREATE     1
#define PROTO_IOC_BUSDMA_TAG_DERIVE     2
#define PROTO_IOC_BUSDMA_TAG_DESTROY    3
#define PROTO_IOC_BUSDMA_MEM_ALLOC      10
#define PROTO_IOC_BUSDMA_MEM_FREE       11
#define PROTO_IOC_BUSDMA_MD_CREATE      20
#define PROTO_IOC_BUSDMA_MD_DESTROY     21
#define PROTO_IOC_BUSDMA_MD_LOAD        22
#define PROTO_IOC_BUSDMA_MD_UNLOAD      29
#define PROTO_IOC_BUSDMA_SYNC           30
        unsigned long   key;
        union {
                struct {
                        unsigned long   align;
                        unsigned long   bndry;
                        unsigned long   maxaddr;
                        unsigned long   maxsz;
                        unsigned long   maxsegsz;
                        unsigned int    nsegs;
                        unsigned int    datarate;
                        unsigned int    flags;
                } tag;
                struct {
                        unsigned long   tag;
                        unsigned int    flags;
                        unsigned long   virt_addr;
                        unsigned long   virt_size;
                        unsigned int    phys_nsegs;
                        unsigned long   phys_addr;
                        unsigned long   bus_addr;
                        unsigned int    bus_nsegs;
                } md;
                struct {
                        unsigned int    op;
                        unsigned long   base;
                        unsigned long   size;
                } sync;
        } u;
        unsigned long   result;
};

#define PROTO_IOC_BUSDMA _IOWR(PROTO_IOC_CLASS, 2, struct proto_ioc_busdma)

#endif /* _DEV_PROTO_H_ */