| /* | |
| * | |
| Copyright (c) Eicon Networks, 2002. | |
| * | |
| This source file is supplied for the use with | |
| Eicon Networks range of DIVA Server Adapters. | |
| * | |
| Eicon File Revision : 2.1 | |
| * | |
| This program is free software; you can redistribute it and/or modify | |
| it under the terms of the GNU General Public License as published by | |
| the Free Software Foundation; either version 2, or (at your option) | |
| any later version. | |
| * | |
| This program is distributed in the hope that it will be useful, | |
| but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY | |
| implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| See the GNU General Public License for more details. | |
| * | |
| You should have received a copy of the GNU General Public License | |
| along with this program; if not, write to the Free Software | |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| * | |
| */ | |
| #ifndef __DIVA_IDI_DFIFO_INC__ | |
| #define __DIVA_IDI_DFIFO_INC__ | |
| #define DIVA_DFIFO_CACHE_SZ 64 /* Used to isolate pipe from | |
| rest of the world | |
| should be divisible by 4 | |
| */ | |
| #define DIVA_DFIFO_RAW_SZ (2512 * 8) | |
| #define DIVA_DFIFO_DATA_SZ 68 | |
| #define DIVA_DFIFO_HDR_SZ 4 | |
| #define DIVA_DFIFO_SEGMENT_SZ (DIVA_DFIFO_DATA_SZ + DIVA_DFIFO_HDR_SZ) | |
| #define DIVA_DFIFO_SEGMENTS ((DIVA_DFIFO_RAW_SZ) / (DIVA_DFIFO_SEGMENT_SZ) + 1) | |
| #define DIVA_DFIFO_MEM_SZ ( \ | |
| (DIVA_DFIFO_SEGMENT_SZ) * (DIVA_DFIFO_SEGMENTS) + \ | |
| (DIVA_DFIFO_CACHE_SZ) * 2 \ | |
| ) | |
| #define DIVA_DFIFO_STEP DIVA_DFIFO_SEGMENT_SZ | |
| /* ------------------------------------------------------------------------- | |
| Block header layout is: | |
| byte[0] -> flags | |
| byte[1] -> length of data in block | |
| byte[2] -> reserved | |
| byte[4] -> reserved | |
| ------------------------------------------------------------------------- */ | |
| #define DIVA_DFIFO_WRAP 0x80 /* This is the last block in fifo */ | |
| #define DIVA_DFIFO_READY 0x40 /* This block is ready for processing */ | |
| #define DIVA_DFIFO_LAST 0x20 /* This block is last in message */ | |
| #define DIVA_DFIFO_AUTO 0x10 /* Don't look for 'ready', don't ack */ | |
| int diva_dfifo_create(void *start, int length); | |
| #endif |