adv.h revision 1.9 
1/*      $NetBSD: adv.h,v 1.9 2003/07/08 10:06:30 itojun 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 */
47typedef int (* ASC_ISR_CALLBACK) (ASC_SOFTC *, ASC_QDONE_INFO *);
48
49struct adv_ccb
50{
51	ASC_SG_HEAD	sghead;
52	ASC_SCSI_Q	scsiq;
53
54	struct scsipi_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
71typedef 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
81struct 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
95int adv_init __P((ASC_SOFTC *));
96void adv_attach __P((ASC_SOFTC *));
97int adv_detach __P((ASC_SOFTC *, int));
98int adv_intr __P((void *));
99ADV_CCB *adv_ccb_phys_kv __P((ASC_SOFTC *, u_long));
100
101/******************************************************************************/
102
103#endif /* _ADVANSYS_NARROW_H_ */
104