Annotation of sys/dev/ic/bhavar.h, Revision 1.1.1.1
1.1 nbrk 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 *);
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