dptvar.h revision 1.1
1 /* $NetBSD: dptvar.h,v 1.1 1999/09/27 23:41:47 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Andy Doran <ad (at) NetBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef _IC_DPTVAR_H_ 31 #define _IC_DPTVAR_H_ 1 32 33 #define DPT_CCB_OFF(sc,m) ((u_long)(m) - (u_long)((sc)->sc_ccbs)) 34 35 #define CCB_ALLOC 0x01 /* CCB allocated */ 36 #define CCB_ABORT 0x02 /* abort has been issued on this CCB */ 37 #define CCB_INTR 0x04 /* HBA interrupted for this CCB */ 38 #define CCB_PRIVATE 0x08 /* ours; don't talk to scsipi when done */ 39 40 struct dpt_ccb { 41 struct eata_cp ccb_eata_cp; /* EATA command packet */ 42 struct eata_sg ccb_sg[DPT_SG_SIZE]; /* SG element list */ 43 volatile int ccb_flg; /* CCB flags */ 44 int ccb_timeout; /* timeout in ms */ 45 u_int32_t ccb_ccbpa; /* physical addr of this CCB */ 46 bus_dmamap_t ccb_dmamap_xfer; /* dmamap for data xfers */ 47 int ccb_hba_status; /* from status packet */ 48 int ccb_scsi_status; /* from status packet */ 49 int ccb_id; /* unique ID of this CCB */ 50 TAILQ_ENTRY(dpt_ccb) ccb_chain; /* link to next CCB */ 51 struct scsipi_sense_data ccb_sense; /* SCSI sense data on error */ 52 struct scsipi_xfer *ccb_xs; /* initiating SCSI command */ 53 }; 54 55 struct dpt_softc { 56 struct device sc_dv; /* generic device data */ 57 bus_space_handle_t sc_ioh; /* bus space handle */ 58 struct scsipi_adapter sc_adapter;/* scsipi adapter */ 59 struct scsipi_link sc_link[3]; /* prototype link for each channel */ 60 bus_space_tag_t sc_iot; /* bus space tag */ 61 bus_dma_tag_t sc_dmat; /* bus DMA tag */ 62 bus_dmamap_t sc_dmamap_ccb; /* maps the CCBs */ 63 void *sc_ih; /* interrupt handler cookie */ 64 void *sc_sdh; /* shutdown hook */ 65 struct dpt_ccb *sc_ccbs; /* all our CCBs */ 66 struct eata_sp *sc_sp; /* EATA status packet */ 67 int sc_spoff; /* status packet offset in dmamap */ 68 u_int32_t sc_sppa; /* status packet physical address */ 69 caddr_t sc_scr; /* scratch area */ 70 int sc_scrlen; /* scratch area length */ 71 int sc_scroff; /* scratch area offset in dmamap */ 72 u_int32_t sc_scrpa; /* scratch area physical address */ 73 int sc_hbaid[3]; /* ID of HBA on each channel */ 74 int sc_nccbs; /* number of CCBs available */ 75 #ifdef notdef 76 int sc_pending; /* cmds on sc_queue + HBA queue */ 77 #endif 78 TAILQ_HEAD(, dpt_ccb) sc_free_ccb;/* free ccb list */ 79 TAILQ_HEAD(, scsipi_xfer) sc_queue;/* pending commands */ 80 }; 81 82 int dpt_intr __P((void *)); 83 void dpt_init __P((struct dpt_softc *, const char *)); 84 85 #endif /* !defined _IC_DPTVAR_H_ */ 86
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