15d4cf6bf9
amiga goes: config.new *and* /sys/scsi. clock code coerced into a single .c file adding an accurate usec delay(). disklabel.c updated to DTRT, code to write RDB's to be added soon. sbic (old scsi) converted over to new scsi and config this covers about 90% of users. Other drivers soon.
86 lines
3.6 KiB
C
86 lines
3.6 KiB
C
/*
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Van Jacobson of Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)scivar.h 7.1 (Berkeley) 5/8/90
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* $Id: scivar.h,v 1.2 1994/05/08 05:53:42 chopps Exp $
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*/
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struct sci_softc {
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struct amiga_ctlr *sc_ac;
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struct devqueue sc_dq;
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struct devqueue sc_sq;
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volatile u_char *sci_data; /* r: Current data */
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volatile u_char *sci_odata; /* w: Out data */
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volatile u_char *sci_icmd; /* rw: Initiator command */
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volatile u_char *sci_mode; /* rw: Mode */
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volatile u_char *sci_tcmd; /* rw: Target command */
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volatile u_char *sci_bus_csr; /* r: Bus Status */
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volatile u_char *sci_sel_enb; /* w: Select enable */
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volatile u_char *sci_csr; /* r: Status */
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volatile u_char *sci_dma_send; /* w: Start dma send data */
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volatile u_char *sci_idata; /* r: Input data */
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volatile u_char *sci_trecv; /* w: Start dma receive, target */
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volatile u_char *sci_iack; /* r: Interrupt Acknowledge */
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volatile u_char *sci_irecv; /* w: Start dma receive, initiator */
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int (*dma_xfer_in)(); /* psuedo DMA transfer */
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int (*dma_xfer_out)(); /* psuedo DMA transfer */
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int (*dma_intr)(); /* board-specific interrupt */
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u_char sc_flags;
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u_char sc_lun;
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/* one for each target */
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struct syncpar {
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u_char state;
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u_char period, offset;
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} sc_sync[8];
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u_char sc_slave;
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u_char sc_scsi_addr;
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u_char sc_stat[2];
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u_char sc_msg[8];
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};
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/* sc_flags */
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#define SCI_IO 0x80 /* DMA I/O in progress */
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#define SCI_ALIVE 0x01 /* controller initialized */
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#define SCI_SELECTED 0x04 /* bus is in selected state. Needed for
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correct abort procedure. */
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/* sync states */
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#define SYNC_START 0 /* no sync handshake started */
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#define SYNC_SENT 1 /* we sent sync request, no answer yet */
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#define SYNC_DONE 2 /* target accepted our (or inferior) settings,
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or it rejected the request and we stay async *
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