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shmifvar.h revision 1.4
      1  1.4  pooka /*	$NetBSD: shmifvar.h,v 1.4 2010/08/13 10:13:44 pooka Exp $	*/
      2  1.1  pooka 
      3  1.1  pooka /*-
      4  1.1  pooka  * Copyright (c) 2009 Antti Kantee.  All Rights Reserved.
      5  1.1  pooka  *
      6  1.1  pooka  * Development of this software was supported by The Nokia Foundation.
      7  1.1  pooka  *
      8  1.1  pooka  * Redistribution and use in source and binary forms, with or without
      9  1.1  pooka  * modification, are permitted provided that the following conditions
     10  1.1  pooka  * are met:
     11  1.1  pooka  * 1. Redistributions of source code must retain the above copyright
     12  1.1  pooka  *    notice, this list of conditions and the following disclaimer.
     13  1.1  pooka  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.1  pooka  *    notice, this list of conditions and the following disclaimer in the
     15  1.1  pooka  *    documentation and/or other materials provided with the distribution.
     16  1.1  pooka  *
     17  1.1  pooka  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     18  1.1  pooka  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  1.1  pooka  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  1.1  pooka  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     21  1.1  pooka  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  1.1  pooka  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     23  1.1  pooka  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  1.1  pooka  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  1.1  pooka  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  1.1  pooka  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  1.1  pooka  * SUCH DAMAGE.
     28  1.1  pooka  */
     29  1.1  pooka 
     30  1.1  pooka #ifndef _RUMP_NET_SHMIFVAR_H_
     31  1.1  pooka #define _RUMP_NET_SHMIFVAR_H_
     32  1.1  pooka 
     33  1.2  pooka #define SHMIF_MAGIC 0xca11d054
     34  1.4  pooka #define SHMIF_VERSION 2
     35  1.2  pooka 
     36  1.1  pooka struct shmif_mem {
     37  1.2  pooka 	uint32_t shm_magic;
     38  1.2  pooka 	uint32_t shm_version;
     39  1.2  pooka 
     40  1.3  pooka 	uint64_t shm_gen;
     41  1.3  pooka 
     42  1.2  pooka 	uint32_t shm_first;
     43  1.1  pooka 	uint32_t shm_last;
     44  1.2  pooka 
     45  1.2  pooka 	uint32_t shm_lock;
     46  1.3  pooka 	uint32_t shm_spare[1];
     47  1.2  pooka 
     48  1.1  pooka 	uint8_t shm_data[0];
     49  1.1  pooka };
     50  1.1  pooka 
     51  1.1  pooka #define IFMEM_DATA	(offsetof(struct shmif_mem, shm_data))
     52  1.1  pooka #define IFMEM_WAKEUP	(offsetof(struct shmif_mem, shm_version))
     53  1.4  pooka 
     54  1.4  pooka struct shmif_pkthdr {
     55  1.4  pooka 	uint32_t sp_len;
     56  1.4  pooka 
     57  1.4  pooka 	uint32_t sp_sec;
     58  1.4  pooka 	uint32_t sp_usec;
     59  1.4  pooka };
     60  1.1  pooka 
     61  1.3  pooka #define BUSMEM_SIZE (1024*1024)
     62  1.3  pooka #define BUSMEM_DATASIZE (BUSMEM_SIZE - sizeof(struct shmif_mem))
     63  1.3  pooka 
     64  1.3  pooka #if 0
     65  1.3  pooka #ifdef _KERNEL
     66  1.3  pooka #define DPRINTF(x) rumpuser_dprintf x
     67  1.3  pooka #else
     68  1.3  pooka #define DPRINTF(x) printf x
     69  1.3  pooka #endif
     70  1.3  pooka #else
     71  1.3  pooka #define DPRINTF(x)
     72  1.3  pooka #endif
     73  1.3  pooka 
     74  1.3  pooka void		shmif_lockbus(struct shmif_mem *);
     75  1.3  pooka void		shmif_unlockbus(struct shmif_mem *);
     76  1.3  pooka uint32_t	shmif_advance(uint32_t, uint32_t);
     77  1.3  pooka uint32_t	shmif_busread(struct shmif_mem *,
     78  1.3  pooka 			      void *, uint32_t, size_t, bool *);
     79  1.3  pooka void		shmif_advancefirst(struct shmif_mem *, uint32_t, size_t);
     80  1.3  pooka uint32_t	shmif_buswrite(struct shmif_mem *, uint32_t,
     81  1.3  pooka 			       void *, size_t, bool *);
     82  1.3  pooka uint32_t	shmif_nextpktoff(struct shmif_mem *, uint32_t);
     83  1.3  pooka 
     84  1.1  pooka #endif
     85