1 | /* $NetBSD: adv.h,v 1.13 2005/12/11 12:21:25 christos Exp $ */ |
2 | |
3 | /* |
4 | * Generic driver definitions and exported functions for the Advanced |
5 | * Systems Inc. Narrow SCSI controllers |
6 | * |
7 | * Copyright (c) 1998 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_NARROW_H_ |
42 | #define _ADVANSYS_NARROW_H_ |
43 | |
44 | /******************************************************************************/ |
45 | |
46 | /* second level interrupt callback type definition */ |
47 | typedef int (* ASC_ISR_CALLBACK) (ASC_SOFTC *, ASC_QDONE_INFO *); |
48 | |
49 | struct adv_ccb |
50 | { |
51 | ASC_SG_HEAD sghead; |
52 | ASC_SCSI_Q scsiq; |
53 | |
54 | struct scsi_sense_data scsi_sense; |
55 | |
56 | struct callout ccb_watchdog; |
57 | |
58 | TAILQ_ENTRY(adv_ccb) chain; |
59 | struct adv_ccb *nexthash; |
60 | u_long hashkey; |
61 | struct scsipi_xfer *xs; /* the scsipi_xfer for this cmd */ |
62 | int flags; /* see below */ |
63 | |
64 | int timeout; |
65 | /* |
66 | * This DMA map maps the buffer involved in the transfer. |
67 | */ |
68 | bus_dmamap_t dmamap_xfer; |
69 | }; |
70 | |
71 | typedef struct adv_ccb ADV_CCB; |
72 | |
73 | /* flags for ADV_CCB */ |
74 | #define CCB_ALLOC 0x01 |
75 | #define CCB_ABORT 0x02 |
76 | #define CCB_WATCHDOG 0x10 |
77 | |
78 | |
79 | #define ADV_MAX_CCB 32 |
80 | |
81 | struct adv_control |
82 | { |
83 | ADV_CCB ccbs[ADV_MAX_CCB]; /* all our control blocks */ |
84 | u_int8_t overrun_buf[ASC_OVERRUN_BSIZE]; |
85 | }; |
86 | |
87 | /* |
88 | * Offset of a CCB from the beginning of the control DMA mapping. |
89 | */ |
90 | #define ADV_CCB_OFF(c) (offsetof(struct adv_control, ccbs[0]) + \ |
91 | (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0]))) |
92 | |
93 | /******************************************************************************/ |
94 | |
95 | int adv_init(ASC_SOFTC *); |
96 | void adv_attach(ASC_SOFTC *); |
97 | int adv_detach(ASC_SOFTC *, int); |
98 | int adv_intr(void *); |
99 | ADV_CCB *adv_ccb_phys_kv(ASC_SOFTC *, u_long); |
100 | |
101 | /******************************************************************************/ |
102 | |
103 | #endif /* _ADVANSYS_NARROW_H_ */ |
104 | |