1 /*	$OpenBSD: adv.h,v 1.5 2002/03/14 01:26:53 millert Exp $	*/
2 /*      $NetBSD: adv.h,v 1.3 1998/09/26 16:02:56 dante Exp $        */
3 
4 /*
5  * Generic driver definitions and exported functions for the Advanced
6  * Systems Inc. Narrow SCSI controllers
7  *
8  * Copyright (c) 1998 The NetBSD Foundation, Inc.
9  * All rights reserved.
10  *
11  * Author: Baldassare Dante Profeta <dante@mclink.it>
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. All advertising materials mentioning features or use of this software
22  *    must display the following acknowledgement:
23  *        This product includes software developed by the NetBSD
24  *        Foundation, Inc. and its contributors.
25  * 4. Neither the name of The NetBSD Foundation nor the names of its
26  *    contributors may be used to endorse or promote products derived
27  *    from this software without specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39  * POSSIBILITY OF SUCH DAMAGE.
40  */
41 
42 #ifndef _ADVANSYS_NARROW_H_
43 #define _ADVANSYS_NARROW_H_
44 
45 #include <dev/ic/advlib.h>
46 
47 /******************************************************************************/
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 	TAILQ_ENTRY(adv_ccb) chain;
57 	struct scsi_xfer	*xs;	/* the scsi_xfer for this cmd */
58 	int			flags;	/* see below */
59 
60 	int			timeout;
61 	/*
62 	 * This DMA map maps the buffer involved in the transfer.
63 	 */
64 	bus_dmamap_t		dmamap_xfer;
65 };
66 
67 typedef struct adv_ccb ADV_CCB;
68 
69 /* flags for ADV_CCB */
70 #define CCB_ALLOC       0x01
71 #define CCB_ABORT       0x02
72 #define	CCB_WATCHDOG	0x10
73 
74 
75 #define ADV_MAX_CCB	32
76 
77 struct adv_control
78 {
79 	ADV_CCB	ccbs[ADV_MAX_CCB];	/* all our control blocks */
80 };
81 
82 /*
83  * Offset of a CCB from the beginning of the control DMA mapping.
84  */
85 #define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
86 		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
87 
88 /******************************************************************************/
89 
90 int adv_init(ASC_SOFTC *sc);
91 void adv_attach(ASC_SOFTC *sc);
92 int adv_intr(void *arg);
93 
94 /******************************************************************************/
95 
96 #endif /* _ADVANSYS_NARROW_H_ */
97