1 | /* $NetBSD: adw.h,v 1.14 2005/12/11 12:21:25 christos Exp $ */ |
2 | |
3 | /* |
4 | * Generic driver definitions and exported functions for the Advanced |
5 | * Systems Inc. SCSI controllers |
6 | * |
7 | * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. |
8 | * All rights reserved. |
9 | * |
10 | * Author: Baldassare Dante Profeta <dante@mclink.it> |
11 | * |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions |
14 | * are met: |
15 | * 1. Redistributions of source code must retain the above copyright |
16 | * notice, this list of conditions and the following disclaimer. |
17 | * 2. Redistributions in binary form must reproduce the above copyright |
18 | * notice, this list of conditions and the following disclaimer in the |
19 | * documentation and/or other materials provided with the distribution. |
20 | * 3. All advertising materials mentioning features or use of this software |
21 | * must display the following acknowledgement: |
22 | * This product includes software developed by the NetBSD |
23 | * Foundation, Inc. and its contributors. |
24 | * 4. Neither the name of The NetBSD Foundation nor the names of its |
25 | * contributors may be used to endorse or promote products derived |
26 | * from this software without specific prior written permission. |
27 | * |
28 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
29 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
30 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
31 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
32 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
33 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
34 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
35 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
36 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
37 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
38 | * POSSIBILITY OF SUCH DAMAGE. |
39 | */ |
40 | |
41 | #ifndef _ADVANSYS_WIDE_H_ |
42 | #define _ADVANSYS_WIDE_H_ |
43 | |
44 | /******************************************************************************/ |
45 | |
46 | typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *); |
47 | typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t); |
48 | |
49 | |
50 | /* |
51 | * per request scatter-gather element limit |
52 | * We could have up to 256 SG lists. |
53 | */ |
54 | #define ADW_MAX_SG_LIST 255 |
55 | |
56 | /* |
57 | * Scatter-Gather Definitions per request. |
58 | */ |
59 | |
60 | #define NO_OF_SG_PER_BLOCK 15 |
61 | |
62 | /* Number of SG blocks needed. */ |
63 | #define ADW_NUM_SG_BLOCK \ |
64 | ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK) |
65 | |
66 | |
67 | struct adw_ccb { |
68 | ADW_SCSI_REQ_Q scsiq; |
69 | ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK]; |
70 | |
71 | struct scsi_sense_data scsi_sense; |
72 | |
73 | TAILQ_ENTRY(adw_ccb) chain; |
74 | struct adw_ccb *nexthash; |
75 | u_int32_t hashkey; |
76 | |
77 | struct scsipi_xfer *xs; /* the scsipi_xfer for this cmd */ |
78 | int flags; /* see below */ |
79 | |
80 | int timeout; |
81 | /* |
82 | * This DMA map maps the buffer involved in the transfer. |
83 | */ |
84 | bus_dmamap_t dmamap_xfer; |
85 | }; |
86 | |
87 | typedef struct adw_ccb ADW_CCB; |
88 | |
89 | /* flags for ADW_CCB */ |
90 | #define CCB_ALLOC 0x01 |
91 | #define CCB_ABORTING 0x02 |
92 | #define CCB_ABORTED 0x04 |
93 | |
94 | |
95 | #define ADW_MAX_CCB 63 /* Max. number commands per device (63) */ |
96 | |
97 | struct adw_control { |
98 | ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */ |
99 | ADW_CARRIER *carriers; /* all our carriers */ |
100 | }; |
101 | |
102 | /* |
103 | * Offset of a CCB from the beginning of the control DMA mapping. |
104 | */ |
105 | #define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \ |
106 | (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0]))) |
107 | |
108 | /******************************************************************************/ |
109 | |
110 | int adw_init(ADW_SOFTC *); |
111 | void adw_attach(ADW_SOFTC *); |
112 | int adw_intr(void *); |
113 | ADW_CCB *adw_ccb_phys_kv(ADW_SOFTC *, u_int32_t); |
114 | |
115 | /******************************************************************************/ |
116 | |
117 | #endif /* _ADVANSYS_ADW_H_ */ |
118 | |