91 lines
3.7 KiB
C
91 lines
3.7 KiB
C
/* $NetBSD: dptvar.h,v 1.8 2001/04/25 17:53:32 bouyer Exp $ */
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/*
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* Copyright (c) 1999, 2000, 2001 Andrew Doran <ad@netbsd.org>
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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*/
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#ifndef _IC_DPTVAR_H_
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#define _IC_DPTVAR_H_ 1
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/* Software parameters */
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#define DPT_SG_SIZE 17
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#define DPT_MAX_XFER 65536
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#define DPT_MAX_CCBS 256
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#define DPT_ABORT_TIMEOUT 2000 /* milliseconds */
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#define DPT_SCRATCH_SIZE 256 /* bytes */
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#define CCB_OFF(sc,m) ((u_long)(m) - (u_long)((sc)->sc_ccbs))
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#define CCB_ABORT 0x01 /* abort has been issued on this CCB */
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#define CCB_INTR 0x02 /* HBA interrupted for this CCB */
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#define CCB_PRIVATE 0x04 /* ours; don't talk to scsipi when done */
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struct dpt_ccb {
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/* Data that will be touched by the HBA */
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struct eata_cp ccb_eata_cp; /* EATA command packet */
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struct eata_sg ccb_sg[DPT_SG_SIZE]; /* SG element list */
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struct scsipi_sense_data ccb_sense; /* SCSI sense data on error */
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/* Data that will not be touched by the HBA */
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volatile int ccb_flg; /* CCB flags */
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int ccb_timeout; /* timeout in ms */
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u_int32_t ccb_ccbpa; /* physical addr of this CCB */
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bus_dmamap_t ccb_dmamap_xfer; /* dmamap for data xfers */
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int ccb_hba_status; /* from status packet */
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int ccb_scsi_status; /* from status packet */
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int ccb_id; /* unique ID of this CCB */
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SLIST_ENTRY(dpt_ccb) ccb_chain; /* link to next CCB */
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struct scsipi_xfer *ccb_xs; /* initiating SCSI command */
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};
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struct dpt_softc {
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struct device sc_dv; /* generic device data */
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struct scsipi_adapter sc_adapt; /* scsipi adapter */
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struct scsipi_channel sc_chans[3]; /* each channel */
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bus_space_handle_t sc_ioh; /* bus space handle */
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bus_space_tag_t sc_iot; /* bus space tag */
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bus_dma_tag_t sc_dmat; /* bus DMA tag */
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bus_dmamap_t sc_dmamap; /* maps the CCBs */
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void *sc_ih; /* interrupt handler cookie */
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struct dpt_ccb *sc_ccbs; /* all our CCBs */
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struct eata_sp *sc_stp; /* EATA status packet */
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int sc_stpoff; /* status packet offset in dmamap */
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u_int32_t sc_stppa; /* status packet physical address */
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caddr_t sc_scr; /* scratch area */
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int sc_scroff; /* scratch area offset in dmamap */
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u_int32_t sc_scrpa; /* scratch area physical address */
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int sc_hbaid[3]; /* ID of HBA on each channel */
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int sc_nccbs; /* number of CCBs available */
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SLIST_HEAD(, dpt_ccb) sc_ccb_free;/* free ccb list */
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struct eata_cfg sc_ec; /* EATA configuration data */
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};
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void dpt_init(struct dpt_softc *, const char *);
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int dpt_intr(void *);
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int dpt_readcfg(struct dpt_softc *);
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#endif /* !defined _IC_DPTVAR_H_ */
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