| 1 | /* $NetBSD: dptvar.h,v 1.16 2012/10/27 17:18:20 chs Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1999, 2000, 2001 Andrew Doran <ad@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 | /* Software parameters */ |
| 34 | #define DPT_SG_SIZE 17 |
| 35 | #define DPT_MAX_XFER 65536 |
| 36 | #define DPT_MAX_CCBS 256 |
| 37 | #define DPT_ABORT_TIMEOUT 2000 /* milliseconds */ |
| 38 | #define DPT_SCRATCH_SIZE 256 /* bytes */ |
| 39 | |
| 40 | #define CCB_OFF(sc,m) ((u_long)(m) - (u_long)((sc)->sc_ccbs)) |
| 41 | |
| 42 | #define CCB_ABORT 0x01 /* abort has been issued on this CCB */ |
| 43 | #define CCB_INTR 0x02 /* HBA interrupted for this CCB */ |
| 44 | #define CCB_PRIVATE 0x04 /* ours; don't talk to scsipi when done */ |
| 45 | #define CCB_WAIT 0x08 /* sleeping on completion */ |
| 46 | |
| 47 | struct dpt_ccb { |
| 48 | /* Data that will be touched by the HBA */ |
| 49 | struct eata_cp ccb_eata_cp; /* EATA command packet */ |
| 50 | struct eata_sg ccb_sg[DPT_SG_SIZE]; /* SG element list */ |
| 51 | struct scsi_sense_data ccb_sense; /* SCSI sense data on error */ |
| 52 | |
| 53 | /* Data that will not be touched by the HBA */ |
| 54 | volatile int ccb_flg; /* CCB flags */ |
| 55 | int ccb_timeout; /* timeout in ms */ |
| 56 | u_int32_t ccb_ccbpa; /* physical addr of this CCB */ |
| 57 | bus_dmamap_t ccb_dmamap_xfer; /* dmamap for data xfers */ |
| 58 | int ccb_hba_status; /* from status packet */ |
| 59 | int ccb_scsi_status; /* from status packet */ |
| 60 | int ccb_id; /* unique ID of this CCB */ |
| 61 | SLIST_ENTRY(dpt_ccb) ccb_chain; /* link to next CCB */ |
| 62 | struct scsipi_xfer *ccb_xs; /* initiating SCSI command */ |
| 63 | struct eata_sp *ccb_savesp; /* saved status packet */ |
| 64 | }; |
| 65 | |
| 66 | struct dpt_softc { |
| 67 | device_t sc_dev; /* generic device data */ |
| 68 | kmutex_t sc_lock; |
| 69 | struct scsipi_adapter sc_adapt; /* scsipi adapter */ |
| 70 | struct scsipi_channel sc_chans[3]; /* each channel */ |
| 71 | bus_space_handle_t sc_ioh; /* bus space handle */ |
| 72 | bus_space_tag_t sc_iot; /* bus space tag */ |
| 73 | bus_dma_tag_t sc_dmat; /* bus DMA tag */ |
| 74 | bus_dmamap_t sc_dmamap; /* maps the CCBs */ |
| 75 | void *sc_ih; /* interrupt handler cookie */ |
| 76 | struct dpt_ccb *sc_ccbs; /* all our CCBs */ |
| 77 | struct eata_sp *sc_stp; /* EATA status packet */ |
| 78 | int sc_stpoff; /* status packet offset in dmamap */ |
| 79 | u_int32_t sc_stppa; /* status packet physical address */ |
| 80 | void * sc_scr; /* scratch area */ |
| 81 | int sc_scroff; /* scratch area offset in dmamap */ |
| 82 | u_int32_t sc_scrpa; /* scratch area physical address */ |
| 83 | int sc_hbaid[3]; /* ID of HBA on each channel */ |
| 84 | int sc_nccbs; /* number of CCBs available */ |
| 85 | SLIST_HEAD(, dpt_ccb) sc_ccb_free;/* free ccb list */ |
| 86 | struct eata_cfg sc_ec; /* EATA configuration data */ |
| 87 | int sc_bustype; /* SysInfo bus type */ |
| 88 | int sc_isadrq; /* ISA DRQ */ |
| 89 | int sc_isairq; /* ISA IRQ */ |
| 90 | int sc_isaport; /* ISA port */ |
| 91 | }; |
| 92 | |
| 93 | void dpt_init(struct dpt_softc *, const char *); |
| 94 | int dpt_intr(void *); |
| 95 | int dpt_readcfg(struct dpt_softc *); |
| 96 | |
| 97 | #endif /* !defined _IC_DPTVAR_H_ */ |
| 98 | |