102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: $Hdr: scsic.h,v 4.300 91/06/09 06:22:24 root Rel41 $ SONY
|
|
*
|
|
* @(#)scsic.h 8.1 (Berkeley) 6/11/93
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1987- by SONY Corporation.
|
|
*/
|
|
|
|
/*
|
|
* scsic.h ver 1.1
|
|
*
|
|
* Header file for scsi.c.
|
|
*/
|
|
|
|
#define SCSI_NOTWAIT 0x2 /* don't wait cmd completion */
|
|
|
|
#define splhi spl7 /* IPL 7 Be careful to use this.*/
|
|
|
|
/*
|
|
* Delay units are in microseconds.
|
|
*
|
|
* 1ms = 1000 on news800
|
|
* so 1ms = 1500 on 25MHz
|
|
*/
|
|
#define HDELAY(n) \
|
|
{ \
|
|
register int N = (n)*1500 ; \
|
|
while(--N > 0); \
|
|
}
|
|
|
|
struct scsi_stat {
|
|
int wbc; /* # of channel that is waiting for scsi bus free */
|
|
int wrc; /* # of channel that is waiting for reselection */
|
|
struct sc_chan_stat *ip;
|
|
/* In progress channel. Same as ISTAT.IP */
|
|
int ipc; /* number of in progress channel. */
|
|
int dma_stat; /* OFF = DMAC is not used */
|
|
#define SC_DMAC_RD 1
|
|
#define SC_DMAC_WR 2
|
|
};
|
|
|
|
#undef VOLATILE
|
|
#ifdef mips
|
|
#define VOLATILE volatile
|
|
#else
|
|
#define VOLATILE
|
|
#endif
|
|
|
|
struct sc_chan_stat {
|
|
struct scsi *sc ; /* scsi struct address */
|
|
u_char comflg; /* flag for save comand pointer */
|
|
u_int stcnt; /* save transfer count */
|
|
u_char *spoint; /* save transfer point */
|
|
u_int stag; /* save tag register */
|
|
u_int soffset; /* save offset register */
|
|
u_char intr_flg; /* interrupt flag. SCSI_INTEN/INTDIS */
|
|
int chan_num; /* channel NO. */
|
|
VOLATILE struct sc_chan_stat *wb_next; /* wait bus channel queue */
|
|
};
|
|
|
|
#undef VOLATILE
|
|
|
|
extern struct scintsw scintsw[];
|
|
|
|
extern struct scsi_stat scsi_stat;
|