xref: /netbsd-src/sys/dev/ic/adv.h (revision dc306354b0b29af51801a7632f1e95265a68cd81)
1 /*      $NetBSD: adv.h,v 1.3 1998/09/26 16:02:56 dante 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 #include <dev/ic/advlib.h>
45 
46 /******************************************************************************/
47 
48 struct adv_ccb
49 {
50 	ASC_SG_HEAD	sghead;
51 	ASC_SCSI_Q	scsiq;
52 
53 	struct scsipi_sense_data scsi_sense;
54 
55 	TAILQ_ENTRY(adv_ccb) chain;
56 	struct scsipi_xfer	*xs;	/* the scsipi_xfer for this cmd */
57 	int			flags;	/* see below */
58 
59 	int			timeout;
60 	/*
61 	 * This DMA map maps the buffer involved in the transfer.
62 	 */
63 	bus_dmamap_t		dmamap_xfer;
64 };
65 
66 typedef struct adv_ccb ADV_CCB;
67 
68 /* flags for ADV_CCB */
69 #define CCB_ALLOC       0x01
70 #define CCB_ABORT       0x02
71 #define	CCB_WATCHDOG	0x10
72 
73 
74 #define ADV_MAX_CCB	32
75 
76 struct adv_control
77 {
78 	ADV_CCB	ccbs[ADV_MAX_CCB];	/* all our control blocks */
79 };
80 
81 /*
82  * Offset of a CCB from the beginning of the control DMA mapping.
83  */
84 #define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
85 		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
86 
87 /******************************************************************************/
88 
89 int adv_init __P((ASC_SOFTC *sc));
90 void adv_attach __P((ASC_SOFTC *sc));
91 int adv_intr __P((void *arg));
92 
93 /******************************************************************************/
94 
95 #endif /* _ADVANSYS_NARROW_H_ */
96