projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| af5295ff KM |
1 | /* |
| 2 | * Copyright (c) 1992 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc. | |
| 7 | * | |
| 8 | * %sccs.include.redist.c% | |
| 9 | * | |
| 10 | * from: $Hdr: scsic.h,v 4.300 91/06/09 06:22:24 root Rel41 $ SONY | |
| 11 | * | |
| 12 | * @(#)scsic.h 7.1 (Berkeley) %G% | |
| 13 | */ | |
| 14 | ||
| 15 | /* | |
| 16 | * Copyright (c) 1987- by SONY Corporation. | |
| 17 | */ | |
| 18 | ||
| 19 | /* | |
| 20 | * scsic.h ver 1.1 | |
| 21 | * | |
| 22 | * Header file for scsi.c. | |
| 23 | */ | |
| 24 | ||
| 25 | #define SCSI_NOTWAIT 0x2 /* don't wait cmd completion */ | |
| 26 | ||
| 27 | #define splhi spl7 /* IPL 7 Be careful to use this.*/ | |
| 28 | ||
| 29 | /* | |
| 30 | * Delay units are in microseconds. | |
| 31 | * | |
| 32 | * 1ms = 1000 on news800 | |
| 33 | * so 1ms = 1500 on 25MHz | |
| 34 | */ | |
| 35 | #define HDELAY(n) \ | |
| 36 | { \ | |
| 37 | register int N = (n)*1500 ; \ | |
| 38 | while(--N > 0); \ | |
| 39 | } | |
| 40 | ||
| 41 | struct scsi_stat { | |
| 42 | int wbc; /* # of channel that is waiting for scsi bus free */ | |
| 43 | int wrc; /* # of channel that is waiting for reselection */ | |
| 44 | struct sc_chan_stat *ip; | |
| 45 | /* In progress channel. Same as ISTAT.IP */ | |
| 46 | int ipc; /* number of in progress channel. */ | |
| 47 | int dma_stat; /* OFF = DMAC is not used */ | |
| 48 | #define SC_DMAC_RD 1 | |
| 49 | #define SC_DMAC_WR 2 | |
| 50 | }; | |
| 51 | ||
| 52 | #undef VOLATILE | |
| 53 | #ifdef mips | |
| 54 | #define VOLATILE volatile | |
| 55 | #else | |
| 56 | #define VOLATILE | |
| 57 | #endif | |
| 58 | ||
| 59 | struct sc_chan_stat { | |
| 60 | struct scsi *sc ; /* scsi struct address */ | |
| 61 | u_char comflg; /* flag for save comand pointer */ | |
| 62 | u_int stcnt; /* save transfer count */ | |
| 63 | u_char *spoint; /* save transfer point */ | |
| 64 | u_int stag; /* save tag register */ | |
| 65 | u_int soffset; /* save offset register */ | |
| 66 | u_char intr_flg; /* interrupt flag. SCSI_INTEN/INTDIS */ | |
| 67 | int chan_num; /* channel NO. */ | |
| 68 | VOLATILE struct sc_chan_stat *wb_next; /* wait bus channel queue */ | |
| 69 | }; | |
| 70 | ||
| 71 | #undef VOLATILE | |
| 72 | ||
| 73 | extern struct scintsw scintsw[]; | |
| 74 | ||
| 75 | extern struct scsi_stat scsi_stat; |