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 | |