scivar.h revision 1.3 1 1.1 chopps /*
2 1.1 chopps * Copyright (c) 1990 The Regents of the University of California.
3 1.1 chopps * All rights reserved.
4 1.1 chopps *
5 1.1 chopps * This code is derived from software contributed to Berkeley by
6 1.1 chopps * Van Jacobson of Lawrence Berkeley Laboratory.
7 1.1 chopps *
8 1.1 chopps * Redistribution and use in source and binary forms, with or without
9 1.1 chopps * modification, are permitted provided that the following conditions
10 1.1 chopps * are met:
11 1.1 chopps * 1. Redistributions of source code must retain the above copyright
12 1.1 chopps * notice, this list of conditions and the following disclaimer.
13 1.1 chopps * 2. Redistributions in binary form must reproduce the above copyright
14 1.1 chopps * notice, this list of conditions and the following disclaimer in the
15 1.1 chopps * documentation and/or other materials provided with the distribution.
16 1.1 chopps * 3. All advertising materials mentioning features or use of this software
17 1.1 chopps * must display the following acknowledgement:
18 1.1 chopps * This product includes software developed by the University of
19 1.1 chopps * California, Berkeley and its contributors.
20 1.1 chopps * 4. Neither the name of the University nor the names of its contributors
21 1.1 chopps * may be used to endorse or promote products derived from this software
22 1.1 chopps * without specific prior written permission.
23 1.1 chopps *
24 1.1 chopps * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 1.1 chopps * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 1.1 chopps * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 1.1 chopps * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 1.1 chopps * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 1.1 chopps * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 1.1 chopps * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 1.1 chopps * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 1.1 chopps * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 1.1 chopps * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 1.1 chopps * SUCH DAMAGE.
35 1.1 chopps *
36 1.1 chopps * @(#)scivar.h 7.1 (Berkeley) 5/8/90
37 1.3 chopps * $Id: scivar.h,v 1.3 1994/05/29 04:50:24 chopps Exp $
38 1.1 chopps */
39 1.3 chopps #ifndef _SCIVAR_H_
40 1.3 chopps #define _SCIVAR_H_
41 1.3 chopps
42 1.3 chopps struct sci_pending {
43 1.3 chopps TAILQ_ENTRY(sci_pending) link;
44 1.3 chopps struct scsi_xfer *xs;
45 1.3 chopps };
46 1.3 chopps
47 1.1 chopps
48 1.1 chopps struct sci_softc {
49 1.3 chopps struct device sc_dev;
50 1.3 chopps struct scsi_link sc_link; /* proto for sub devices */
51 1.3 chopps TAILQ_HEAD(,sci_pending) sc_xslist;
52 1.3 chopps struct sci_pending sc_xsstore[8][8];
53 1.3 chopps struct scsi_xfer *sc_xs; /* transfer from high level code */
54 1.1 chopps
55 1.2 chopps volatile u_char *sci_data; /* r: Current data */
56 1.2 chopps volatile u_char *sci_odata; /* w: Out data */
57 1.2 chopps volatile u_char *sci_icmd; /* rw: Initiator command */
58 1.2 chopps volatile u_char *sci_mode; /* rw: Mode */
59 1.2 chopps volatile u_char *sci_tcmd; /* rw: Target command */
60 1.2 chopps volatile u_char *sci_bus_csr; /* r: Bus Status */
61 1.2 chopps volatile u_char *sci_sel_enb; /* w: Select enable */
62 1.2 chopps volatile u_char *sci_csr; /* r: Status */
63 1.2 chopps volatile u_char *sci_dma_send; /* w: Start dma send data */
64 1.2 chopps volatile u_char *sci_idata; /* r: Input data */
65 1.2 chopps volatile u_char *sci_trecv; /* w: Start dma receive, target */
66 1.2 chopps volatile u_char *sci_iack; /* r: Interrupt Acknowledge */
67 1.2 chopps volatile u_char *sci_irecv; /* w: Start dma receive, initiator */
68 1.1 chopps
69 1.2 chopps int (*dma_xfer_in)(); /* psuedo DMA transfer */
70 1.2 chopps int (*dma_xfer_out)(); /* psuedo DMA transfer */
71 1.2 chopps int (*dma_intr)(); /* board-specific interrupt */
72 1.1 chopps u_char sc_flags;
73 1.1 chopps u_char sc_lun;
74 1.1 chopps /* one for each target */
75 1.1 chopps struct syncpar {
76 1.1 chopps u_char state;
77 1.1 chopps u_char period, offset;
78 1.1 chopps } sc_sync[8];
79 1.1 chopps u_char sc_slave;
80 1.1 chopps u_char sc_scsi_addr;
81 1.1 chopps u_char sc_stat[2];
82 1.1 chopps u_char sc_msg[8];
83 1.1 chopps };
84 1.1 chopps
85 1.1 chopps /* sc_flags */
86 1.1 chopps #define SCI_IO 0x80 /* DMA I/O in progress */
87 1.1 chopps #define SCI_ALIVE 0x01 /* controller initialized */
88 1.1 chopps #define SCI_SELECTED 0x04 /* bus is in selected state. Needed for
89 1.1 chopps correct abort procedure. */
90 1.1 chopps
91 1.1 chopps /* sync states */
92 1.1 chopps #define SYNC_START 0 /* no sync handshake started */
93 1.1 chopps #define SYNC_SENT 1 /* we sent sync request, no answer yet */
94 1.1 chopps #define SYNC_DONE 2 /* target accepted our (or inferior) settings,
95 1.1 chopps or it rejected the request and we stay async *
96 1.3 chopps
97 1.3 chopps #define PHASE 0x07 /* mask for psns/pctl phase */
98 1.3 chopps #define DATA_OUT_PHASE 0x00
99 1.3 chopps #define DATA_IN_PHASE 0x01
100 1.3 chopps #define CMD_PHASE 0x02
101 1.3 chopps #define STATUS_PHASE 0x03
102 1.3 chopps #define BUS_FREE_PHASE 0x04
103 1.3 chopps #define ARB_SEL_PHASE 0x05 /* Fuji chip combines arbitration with sel. */
104 1.3 chopps #define MESG_OUT_PHASE 0x06
105 1.3 chopps #define MESG_IN_PHASE 0x07
106 1.3 chopps
107 1.3 chopps #define MSG_CMD_COMPLETE 0x00
108 1.3 chopps #define MSG_EXT_MESSAGE 0x01
109 1.3 chopps #define MSG_SAVE_DATA_PTR 0x02
110 1.3 chopps #define MSG_RESTORE_PTR 0x03
111 1.3 chopps #define MSG_DISCONNECT 0x04
112 1.3 chopps #define MSG_INIT_DETECT_ERROR 0x05
113 1.3 chopps #define MSG_ABORT 0x06
114 1.3 chopps #define MSG_REJECT 0x07
115 1.3 chopps #define MSG_NOOP 0x08
116 1.3 chopps #define MSG_PARITY_ERROR 0x09
117 1.3 chopps #define MSG_BUS_DEVICE_RESET 0x0C
118 1.3 chopps #define MSG_IDENTIFY 0x80
119 1.3 chopps #define MSG_IDENTIFY_DR 0xc0 /* (disconnect/reconnect allowed) */
120 1.3 chopps #define MSG_SYNC_REQ 0x01
121 1.3 chopps
122 1.3 chopps
123 1.3 chopps #define STS_CHECKCOND 0x02 /* Check Condition (ie., read sense) */
124 1.3 chopps #define STS_CONDMET 0x04 /* Condition Met (ie., search worked) */
125 1.3 chopps #define STS_BUSY 0x08
126 1.3 chopps #define STS_INTERMED 0x10 /* Intermediate status sent */
127 1.3 chopps #define STS_EXT 0x80 /* Extended status valid */
128 1.3 chopps
129 1.3 chopps /*
130 1.3 chopps * XXXX
131 1.3 chopps */
132 1.3 chopps struct scsi_fmt_cdb {
133 1.3 chopps int len; /* cdb length (in bytes) */
134 1.3 chopps u_char cdb[28]; /* cdb to use on next read/write */
135 1.3 chopps };
136 1.3 chopps
137 1.3 chopps struct buf;
138 1.3 chopps struct scsi_xfer;
139 1.3 chopps
140 1.3 chopps void sci_minphys __P((struct buf *bp));
141 1.3 chopps u_int sci_adinfo __P((void));
142 1.3 chopps int sci_scsicmd __P((struct scsi_xfer *));
143 1.3 chopps
144 1.3 chopps #endif /* _SCIVAR_H_ */
145