Annotation of sys/dev/ic/adw.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: adw.h,v 1.9 2002/03/14 01:26:53 millert Exp $ */
2: /* $NetBSD: adw.h,v 1.9 2000/05/26 15:13:43 dante Exp $ */
3:
4: /*
5: * Generic driver definitions and exported functions for the Advanced
6: * Systems Inc. SCSI controllers
7: *
8: * Copyright (c) 1998, 1999, 2000 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_WIDE_H_
43: #define _ADVANSYS_WIDE_H_
44:
45: /******************************************************************************/
46:
47: typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *);
48: typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t);
49:
50:
51: /*
52: * per request scatter-gather element limit
53: * We could have up to 256 SG lists.
54: */
55: #define ADW_MAX_SG_LIST 255
56:
57: /*
58: * Scatter-Gather Definitions per request.
59: */
60:
61: #define NO_OF_SG_PER_BLOCK 15
62:
63: /* Number of SG blocks needed. */
64: #define ADW_NUM_SG_BLOCK \
65: ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)
66:
67:
68: struct adw_ccb {
69: ADW_SCSI_REQ_Q scsiq;
70: ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK];
71:
72: struct scsi_sense_data scsi_sense;
73:
74: TAILQ_ENTRY(adw_ccb) chain;
75: struct adw_ccb *nexthash;
76: u_int32_t hashkey;
77:
78: struct scsi_xfer *xs; /* the scsi_xfer for this cmd */
79: int flags; /* see below */
80:
81: int timeout;
82:
83: /*
84: * This DMA map maps the buffer involved in the transfer.
85: */
86: bus_dmamap_t dmamap_xfer;
87: };
88:
89: typedef struct adw_ccb ADW_CCB;
90:
91: /* flags for ADW_CCB */
92: #define CCB_ALLOC 0x01
93: #define CCB_ABORTING 0x02
94: #define CCB_ABORTED 0x04
95:
96:
97: #define ADW_MAX_CCB 63 /* Max. number commands per device (63) */
98:
99: struct adw_control {
100: ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */
101: ADW_CARRIER *carriers; /* all our carriers */
102: };
103:
104: /*
105: * Offset of a CCB from the beginning of the control DMA mapping.
106: */
107: #define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \
108: (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
109:
110: /******************************************************************************/
111:
112: int adw_init(ADW_SOFTC *sc);
113: void adw_attach(ADW_SOFTC *sc);
114: int adw_intr(void *arg);
115: ADW_CCB *adw_ccb_phys_kv(ADW_SOFTC *, u_int32_t);
116:
117: /******************************************************************************/
118:
119: #endif /* _ADVANSYS_ADW_H_ */
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