1 /* 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Van Jacobson of Lawrence Berkeley Laboratory. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)scsivar.h 8.1 (Berkeley) 06/10/93 11 */ 12 13 struct scsi_softc { 14 struct hp_ctlr *sc_hc; 15 struct devqueue sc_dq; 16 struct devqueue sc_sq; 17 u_char sc_flags; 18 u_char sc_sync; 19 u_char sc_scsi_addr; 20 u_char sc_stat[2]; 21 u_char sc_msg[7]; 22 }; 23 24 /* sc_flags */ 25 #define SCSI_IO 0x80 /* DMA I/O in progress */ 26 #define SCSI_DMA32 0x40 /* 32-bit DMA should be used */ 27 #define SCSI_HAVEDMA 0x04 /* controller has DMA channel */ 28 #ifdef DEBUG 29 #define SCSI_PAD 0x02 /* 'padded' transfer in progress */ 30 #endif 31 #define SCSI_ALIVE 0x01 /* controller initialized */ 32