FreeBSD/Linux Kernel Cross Reference
sys/dev/aic/aicvar.h
1 /*-
2 * Copyright (c) 1999 Luoqi Chen.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29 struct aic_transinfo {
30 u_int8_t period;
31 u_int8_t offset;
32 };
33
34 struct aic_tinfo {
35 u_int16_t lubusy;
36 u_int8_t flags;
37 u_int8_t scsirate;
38 struct aic_transinfo current;
39 struct aic_transinfo goal;
40 struct aic_transinfo user;
41 };
42
43 #define TINFO_DISC_ENB 0x01
44 #define TINFO_TAG_ENB 0x02
45 #define TINFO_SDTR_NEGO 0x04
46 #define TINFO_SDTR_SENT 0x08
47
48 struct aic_scb {
49 union ccb *ccb;
50 u_int8_t flags;
51 u_int8_t tag;
52 u_int8_t target;
53 u_int8_t lun;
54 u_int8_t status;
55 u_int8_t cmd_len;
56 u_int8_t *cmd_ptr;
57 u_int32_t data_len;
58 u_int8_t *data_ptr;
59 };
60
61 #define ccb_scb_ptr spriv_ptr0
62 #define ccb_aic_ptr spriv_ptr1
63
64 #define SCB_ACTIVE 0x01
65 #define SCB_DISCONNECTED 0x02
66 #define SCB_DEVICE_RESET 0x04
67 #define SCB_SENSE 0x08
68
69 struct aic_softc {
70 int unit;
71 bus_space_tag_t tag;
72 bus_space_handle_t bsh;
73 bus_dma_tag_t dmat;
74
75 struct cam_sim *sim;
76 struct cam_path *path;
77 TAILQ_HEAD(,ccb_hdr) pending_ccbs, nexus_ccbs;
78 struct aic_scb *nexus;
79
80 u_int32_t flags;
81 u_int8_t initiator;
82 u_int8_t state;
83 u_int8_t target;
84 u_int8_t lun;
85 u_int8_t prev_phase;
86
87 u_int8_t msg_outq;
88 u_int8_t msg_sent;
89 int msg_len;
90 char msg_buf[8];
91
92 struct aic_tinfo tinfo[8];
93 struct aic_scb scbs[256];
94 };
95
96 #define AIC_DISC_ENABLE 0x01
97 #define AIC_DMA_ENABLE 0x02
98 #define AIC_PARITY_ENABLE 0x04
99 #define AIC_DWIO_ENABLE 0x08
100 #define AIC_RESOURCE_SHORTAGE 0x10
101 #define AIC_DROP_MSGIN 0x20
102 #define AIC_BUSFREE_OK 0x40
103
104 #define AIC_IDLE 0x00
105 #define AIC_SELECTING 0x01
106 #define AIC_RESELECTED 0x02
107 #define AIC_RECONNECTING 0x03
108 #define AIC_HASNEXUS 0x04
109
110 #define AIC_MSG_IDENTIFY 0x01
111 #define AIC_MSG_TAG_Q 0x02
112 #define AIC_MSG_SDTR 0x04
113 #define AIC_MSG_WDTR 0x08
114 #define AIC_MSG_MSGBUF 0x80
115
116 #define AIC_SYNC_PERIOD (200 / 4)
117 #define AIC_SYNC_OFFSET 8
118
119 #define aic_inb(aic, port) \
120 bus_space_read_1((aic)->tag, (aic)->bsh, (port))
121
122 #define aic_outb(aic, port, value) \
123 bus_space_write_1((aic)->tag, (aic)->bsh, (port), (value))
124
125 #define aic_insb(aic, port, addr, count) \
126 bus_space_read_multi_1((aic)->tag, (aic)->bsh, (port), (addr), (count))
127
128 #define aic_outsb(aic, port, addr, count) \
129 bus_space_write_multi_1((aic)->tag, (aic)->bsh, (port), (addr), (count))
130
131 #define aic_insw(aic, port, addr, count) \
132 bus_space_read_multi_2((aic)->tag, (aic)->bsh, (port), \
133 (u_int16_t *)(addr), (count))
134
135 #define aic_outsw(aic, port, addr, count) \
136 bus_space_write_multi_2((aic)->tag, (aic)->bsh, (port), \
137 (u_int16_t *)(addr), (count))
138
139 #define aic_insl(aic, port, addr, count) \
140 bus_space_read_multi_4((aic)->tag, (aic)->bsh, (port), \
141 (u_int32_t *)(addr), (count))
142
143 #define aic_outsl(aic, port, addr, count) \
144 bus_space_write_multi_4((aic)->tag, (aic)->bsh, (port), \
145 (u_int32_t *)(addr), (count))
146
147 extern int aic_probe __P((struct aic_softc *));
148 extern int aic_attach __P((struct aic_softc *));
149 extern int aic_detach __P((struct aic_softc *));
150 extern void aic_intr __P((void *));
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