/* (-lgl * Coherent 386 release 4.2 * Copyright (c) 1982, 1993 by Mark Williams Company. * All rights reserved. May not be copied without permission. * For copying permission and licensing info, write licensing@mwc.com -lgl) */ #ifndef __SYS_SS_H__ #define __SYS_SS_H__ /* * Header for Seagate ST01/ST02 and Future Domain SCSI host adapters. */ /* * Constants. */ #define SS_RAM 0x1800 /* Offset of parameter RAM */ #define SS_CSR 0x1A00 /* Offset of control/status register */ #define SS_DAT 0x1C00 /* Offset of data port */ #define SS_RAM_LEN 128 /* ST0x has 128 bytes of RAM */ #define SS_DAT_LEN 0x400 /* Byte range mapped to data port */ #define SS_SEL_LEN 0x2000 /* Total size of memory-mapped area */ #define WC_ENABLE_SCSI 0x80 /* Write Control (WC) register bits */ #define WC_ENABLE_IRPT 0x40 #define WC_ENABLE_PRTY 0x20 #define WC_ARBITRATE 0x10 #define WC_ATTENTION 0x08 #define WC_BUSY 0x04 #define WC_SELECT 0x02 #define WC_SCSI_RESET 0x01 #define RS_ARBIT_COMPL 0x80 /* Read STATUS (RS) register bits */ #define RS_PRTY_ERROR 0x40 #define RS_SELECT 0x20 #define RS_REQUEST 0x10 #define RS_CTRL_DATA 0x08 #define RS_I_O 0x04 #define RS_MESSAGE 0x02 #define RS_BUSY 0x01 #if _KERNEL extern void ssq_wr_tail(); extern BUF * ssq_rd_head(); extern BUF * ssq_rm_head(); extern void ss_get(); extern int ss_put(); #endif #endif /* ! defined (__SYS_SS_H__) */