4 Copyright (c) Eicon Networks, 2002.
6 This source file is supplied for the use with
7 Eicon Networks range of DIVA Server Adapters.
9 Eicon File Revision : 2.1
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
18 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 See the GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #ifndef __DIVA_IDI_DFIFO_INC__
27 #define __DIVA_IDI_DFIFO_INC__
28 #define DIVA_DFIFO_CACHE_SZ 64 /* Used to isolate pipe from
30 should be divisible by 4
32 #define DIVA_DFIFO_RAW_SZ (2512*8)
33 #define DIVA_DFIFO_DATA_SZ 68
34 #define DIVA_DFIFO_HDR_SZ 4
35 #define DIVA_DFIFO_SEGMENT_SZ (DIVA_DFIFO_DATA_SZ+DIVA_DFIFO_HDR_SZ)
36 #define DIVA_DFIFO_SEGMENTS ((DIVA_DFIFO_RAW_SZ)/(DIVA_DFIFO_SEGMENT_SZ)+1)
37 #define DIVA_DFIFO_MEM_SZ (\
38 (DIVA_DFIFO_SEGMENT_SZ)*(DIVA_DFIFO_SEGMENTS)+\
39 (DIVA_DFIFO_CACHE_SZ)*2\
41 #define DIVA_DFIFO_STEP DIVA_DFIFO_SEGMENT_SZ
42 /* -------------------------------------------------------------------------
43 Block header layout is:
45 byte[1] -> length of data in block
48 ------------------------------------------------------------------------- */
49 #define DIVA_DFIFO_WRAP 0x80 /* This is the last block in fifo */
50 #define DIVA_DFIFO_READY 0x40 /* This block is ready for processing */
51 #define DIVA_DFIFO_LAST 0x20 /* This block is last in message */
52 #define DIVA_DFIFO_AUTO 0x10 /* Don't look for 'ready', don't ack */
53 int diva_dfifo_create (void* start, int length);