adv.h revision 1.14 
1/*      $NetBSD: adv.h,v 1.14 2019/10/06 00:48:19 uwe 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
46struct adv_ccb
47{
48	ASC_SG_HEAD	sghead;
49	ASC_SCSI_Q	scsiq;
50
51	struct scsi_sense_data scsi_sense;
52
53	struct callout ccb_watchdog;
54
55	TAILQ_ENTRY(adv_ccb) chain;
56	struct adv_ccb		*nexthash;
57	u_long			hashkey;
58	struct scsipi_xfer	*xs;	/* the scsipi_xfer for this cmd */
59	int			flags;	/* see below */
60
61	int			timeout;
62	/*
63	 * This DMA map maps the buffer involved in the transfer.
64	 */
65	bus_dmamap_t		dmamap_xfer;
66};
67
68typedef struct adv_ccb ADV_CCB;
69
70/* flags for ADV_CCB */
71#define CCB_ALLOC       0x01
72#define CCB_ABORT       0x02
73#define	CCB_WATCHDOG	0x10
74
75
76#define ADV_MAX_CCB	32
77
78struct adv_control
79{
80	ADV_CCB	ccbs[ADV_MAX_CCB];	/* all our control blocks */
81	u_int8_t overrun_buf[ASC_OVERRUN_BSIZE];
82};
83
84/*
85 * Offset of a CCB from the beginning of the control DMA mapping.
86 */
87#define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
88		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
89
90/******************************************************************************/
91
92int adv_init(ASC_SOFTC *);
93void adv_attach(ASC_SOFTC *);
94int adv_detach(ASC_SOFTC *, int);
95int adv_intr(void *);
96ADV_CCB *adv_ccb_phys_kv(ASC_SOFTC *, u_long);
97
98/******************************************************************************/
99
100#endif /* _ADVANSYS_NARROW_H_ */
101