1 /* $OpenBSD: bhavar.h,v 1.2 2002/03/14 01:26:54 millert Exp $ */
2 /* $NetBSD: bhavar.h,v 1.12 1998/11/19 21:53:00 thorpej Exp $ */
3
4 /*-
5 * Copyright (c) 1998 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
10 * Simulation Facility, NASA Ames Research Center.
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 #include <sys/queue.h>
42
43 /*
44 * Mail box defs etc.
45 * these could be bigger but we need the bha_softc to fit on a single page..
46 */
47 #define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */
48 /* don't need that many really */
49 #define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */
50 #define CCB_HASH_SIZE 32 /* hash table size for phystokv */
51 #define CCB_HASH_SHIFT 9
52 #define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
53
54 #define bha_nextmbx(wmb, mbx, mbio) \
55 if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \
56 (wmb) = &(mbx)->mbio[0]; \
57 else \
58 (wmb)++;
59
60 struct bha_mbx {
61 struct bha_mbx_out mbo[BHA_MBX_SIZE];
62 struct bha_mbx_in mbi[BHA_MBX_SIZE];
63 struct bha_mbx_out *cmbo; /* Collection Mail Box out */
64 struct bha_mbx_out *tmbo; /* Target Mail Box out */
65 struct bha_mbx_in *tmbi; /* Target Mail Box in */
66 };
67
68 struct bha_control {
69 struct bha_mbx bc_mbx; /* all our mailboxes */
70 struct bha_ccb bc_ccbs[BHA_CCB_MAX]; /* all our control blocks */
71 };
72
73 struct bha_softc {
74 struct device sc_dev;
75
76 bus_space_tag_t sc_iot;
77 bus_space_handle_t sc_ioh;
78 bus_dma_tag_t sc_dmat;
79 bus_dmamap_t sc_dmamap_control; /* maps the control structures */
80 int sc_dmaflags; /* bus-specific dma map flags */
81 void *sc_ih;
82
83 struct bha_control *sc_control; /* control structures */
84 int sc_iswide;
85
86 #define wmbx (&sc->sc_control->bc_mbx)
87
88 struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE];
89 TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb;
90 int sc_mbofull;
91 struct scsi_link sc_link; /* prototype for devs */
92 struct scsi_adapter sc_adapter;
93
94 LIST_HEAD(, scsi_xfer) sc_queue;
95 struct scsi_xfer *sc_queuelast;
96
97 char sc_model[7],
98 sc_firmware[6];
99 };
100
101 /*
102 * Offset of a Mail Box In from the beginning of the control DMA mapping.
103 */
104 #define BHA_MBI_OFF(m) (offsetof(struct bha_control, bc_mbx.mbi[0]) + \
105 (((u_long)(m)) - ((u_long)&wmbx->mbi[0])))
106
107 /*
108 * Offset of a Mail Box Out from the beginning of the control DMA mapping.
109 */
110 #define BHA_MBO_OFF(m) (offsetof(struct bha_control, bc_mbx.mbo[0]) + \
111 (((u_long)(m)) - ((u_long)&wmbx->mbo[0])))
112
113 /*
114 * Offset of a CCB from the beginning of the control DMA mapping.
115 */
116 #define BHA_CCB_OFF(c) (offsetof(struct bha_control, bc_ccbs[0]) + \
117 (((u_long)(c)) - ((u_long)&sc->sc_control->bc_ccbs[0])))
118
119 struct bha_probe_data {
120 int sc_irq, sc_drq;
121 int sc_scsi_dev; /* adapters scsi id */
122 int sc_iswide; /* adapter is wide */
123 };
124
125 /*#define ISWIDE(sc) (sc->sc_link.max_target >= 8)*/
126
127 int bha_cmd(bus_space_tag_t, bus_space_handle_t, struct bha_softc *,
128 int, u_char *, int, u_char *);
129 int bha_find(bus_space_tag_t, bus_space_handle_t,
130 struct bha_probe_data *);
131 void bha_attach(struct bha_softc *, struct bha_probe_data *);
132 int bha_intr(void *);
133
134 int bha_disable_isacompat(struct bha_softc *);
135 void bha_inquire_setup_information(struct bha_softc *);