dtvar.h revision 1.1.12.2 1 1.1.12.1 skrll /* $NetBSD: dtvar.h,v 1.1.12.2 2004/09/18 14:39:04 skrll Exp $ */
2 1.1.12.1 skrll
3 1.1.12.1 skrll /*-
4 1.1.12.1 skrll * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
5 1.1.12.1 skrll * All rights reserved.
6 1.1.12.1 skrll *
7 1.1.12.1 skrll * This code is derived from software contributed to The NetBSD Foundation
8 1.1.12.1 skrll * by Andrew Doran.
9 1.1.12.1 skrll *
10 1.1.12.1 skrll * Redistribution and use in source and binary forms, with or without
11 1.1.12.1 skrll * modification, are permitted provided that the following conditions
12 1.1.12.1 skrll * are met:
13 1.1.12.1 skrll * 1. Redistributions of source code must retain the above copyright
14 1.1.12.1 skrll * notice, this list of conditions and the following disclaimer.
15 1.1.12.1 skrll * 2. Redistributions in binary form must reproduce the above copyright
16 1.1.12.1 skrll * notice, this list of conditions and the following disclaimer in the
17 1.1.12.1 skrll * documentation and/or other materials provided with the distribution.
18 1.1.12.1 skrll * 3. All advertising materials mentioning features or use of this software
19 1.1.12.1 skrll * must display the following acknowledgement:
20 1.1.12.1 skrll * This product includes software developed by the NetBSD
21 1.1.12.1 skrll * Foundation, Inc. and its contributors.
22 1.1.12.1 skrll * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.1.12.1 skrll * contributors may be used to endorse or promote products derived
24 1.1.12.1 skrll * from this software without specific prior written permission.
25 1.1.12.1 skrll *
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36 1.1.12.1 skrll * POSSIBILITY OF SUCH DAMAGE.
37 1.1.12.1 skrll */
38 1.1.12.1 skrll
39 1.1.12.1 skrll #ifndef _DTVAR_H_
40 1.1.12.1 skrll #define _DTVAR_H_
41 1.1.12.1 skrll
42 1.1.12.1 skrll #define DT_DEVICE_NO(a) (((a) - DT_ADDR_FIRST) >> 1)
43 1.1.12.1 skrll #define DT_GET_SHORT(b0, b1) (((b0) << 8) | (b1))
44 1.1.12.1 skrll
45 1.1.12.1 skrll struct dt_msg {
46 1.1.12.1 skrll uint8_t dst;
47 1.1.12.1 skrll uint8_t src;
48 1.1.12.1 skrll uint8_t ctl;
49 1.1.12.1 skrll
50 1.1.12.1 skrll /* varzise, checksum byte at end */
51 1.1.12.1 skrll uint8_t body[DT_MAX_MSG_SIZE-3];
52 1.1.12.1 skrll
53 1.1.12.1 skrll union {
54 1.1.12.1 skrll SLIST_ENTRY(dt_msg) slist;
55 1.1.12.1 skrll SIMPLEQ_ENTRY(dt_msg) simpleq;
56 1.1.12.1 skrll } chain;
57 1.1.12.1 skrll };
58 1.1.12.1 skrll
59 1.1.12.1 skrll #define DT_CTL(l, s, p) \
60 1.1.12.1 skrll ((l & 0x1f) | ((s & 0x03) << 5) | ((p & 0x01) << 7))
61 1.1.12.1 skrll #define DT_CTL_P(c) ((c >> 7) & 0x01)
62 1.1.12.1 skrll #define DT_CTL_SUBADDR(c) ((c >> 5) & 0x03)
63 1.1.12.1 skrll #define DT_CTL_LEN(c) (c & 0x1f)
64 1.1.12.1 skrll
65 1.1.12.1 skrll struct dt_device {
66 1.1.12.1 skrll struct device *dtdv_dv;
67 1.1.12.1 skrll void (*dtdv_handler)(void *, struct dt_msg *);
68 1.1.12.1 skrll };
69 1.1.12.1 skrll
70 1.1.12.1 skrll struct dt_state {
71 1.1.12.1 skrll volatile u_int *ds_data;
72 1.1.12.1 skrll volatile u_int *ds_poll;
73 1.1.12.1 skrll int ds_bad_pkts;
74 1.1.12.1 skrll int ds_state;
75 1.1.12.1 skrll int ds_escaped;
76 1.1.12.1 skrll int ds_len;
77 1.1.12.1 skrll int ds_ptr;
78 1.1.12.1 skrll };
79 1.1.12.1 skrll
80 1.1.12.1 skrll struct dt_softc {
81 1.1.12.1 skrll struct device sc_dv;
82 1.1.12.1 skrll struct dt_msg sc_msg;
83 1.1.12.1 skrll void *sc_sih;
84 1.1.12.1 skrll SLIST_HEAD(, dt_msg) sc_free;
85 1.1.12.1 skrll SIMPLEQ_HEAD(, dt_msg) sc_queue;
86 1.1.12.1 skrll };
87 1.1.12.1 skrll
88 1.1.12.1 skrll struct dt_attach_args {
89 1.1.12.1 skrll int dta_addr;
90 1.1.12.1 skrll };
91 1.1.12.1 skrll
92 1.1.12.1 skrll #define DT_GET_ERROR -1
93 1.1.12.1 skrll #define DT_GET_DONE 0
94 1.1.12.1 skrll #define DT_GET_NOTYET 1
95 1.1.12.1 skrll
96 1.1.12.1 skrll void dt_cninit(void);
97 1.1.12.1 skrll int dt_identify(int, struct dt_ident *);
98 1.1.12.1 skrll int dt_msg_get(struct dt_msg *, int);
99 1.1.12.1 skrll void dt_msg_dump(struct dt_msg *);
100 1.1.12.1 skrll int dt_establish_handler(struct dt_softc *, struct dt_device *,
101 1.1.12.1 skrll struct device *, void (*)(void *, struct dt_msg *));
102 1.1.12.1 skrll
103 1.1.12.1 skrll extern int dt_kbd_addr;
104 1.1.12.1 skrll extern struct dt_device dt_kbd_dv;
105 1.1.12.1 skrll extern int dt_ms_addr;
106 1.1.12.1 skrll extern struct dt_device dt_ms_dv;
107 1.1.12.1 skrll extern struct dt_state dt_state;
108 1.1.12.1 skrll
109 1.1.12.1 skrll #endif /* !_DTVAR_H_ */
110