1 /* $OpenBSD: tcvar.h,v 1.12 2004/06/28 02:28:43 aaron Exp $ */
2 /* $NetBSD: tcvar.h,v 1.17 2000/06/04 19:15:15 cgd Exp $ */
3
4 /*
5 * Copyright (c) 1995 Carnegie-Mellon University.
6 * All rights reserved.
7 *
8 * Author: Chris G. Demetriou
9 *
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
15 *
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 *
20 * Carnegie Mellon requests users of this software to return to
21 *
22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23 * School of Computer Science
24 * Carnegie Mellon University
25 * Pittsburgh PA 15213-3890
26 *
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
29 */
30
31 #ifndef __DEV_TC_TCVAR_H__
32 #define __DEV_TC_TCVAR_H__
33
34 /*
35 * Definitions for TURBOchannel autoconfiguration.
36 */
37
38 #include <machine/bus.h>
39 #include <dev/tc/tcreg.h>
40
41 /*
42 * Machine-dependent definitions.
43 */
44 #include <machine/tc_machdep.h>
45
46 /*
47 * In the long run, the following block will go completely away.
48 * For now, the MI TC code still uses the old TC_IPL_ names
49 * and not the new IPL_ names.
50 */
51 #if 1
52 /*
53 * Map the new definitions to the old.
54 */
55 #include <machine/intr.h>
56
57 #define tc_intrlevel_t int
58
59 #define TC_IPL_NONE IPL_NONE
60 #define TC_IPL_BIO IPL_BIO
61 #define TC_IPL_NET IPL_NET
62 #define TC_IPL_TTY IPL_TTY
63 #define TC_IPL_CLOCK IPL_CLOCK
64 #endif /* 1 */
65
66 struct tc_softc {
67 struct device sc_dv;
68
69 int sc_speed;
70 int sc_nslots;
71 struct tc_slotdesc *sc_slots;
72
73 void (*sc_intr_establish)(struct device *, void *,
74 int, int (*)(void *), void *);
75 void (*sc_intr_disestablish)(struct device *, void *);
76 bus_dma_tag_t (*sc_get_dma_tag)(int);
77 };
78
79 /*
80 * Arguments used to attach TURBOchannel busses.
81 */
82 struct tcbus_attach_args {
83 char *tba_busname; /* XXX should be common */
84 bus_space_tag_t tba_memt;
85
86 /* Bus information */
87 u_int tba_speed; /* see TC_SPEED_* below */
88 u_int tba_nslots;
89 struct tc_slotdesc *tba_slots;
90 u_int tba_nbuiltins;
91 const struct tc_builtin *tba_builtins;
92
93
94 /* TC bus resource management; XXX will move elsewhere eventually. */
95 void (*tba_intr_establish)(struct device *, void *,
96 int, int (*)(void *), void *);
97 void (*tba_intr_disestablish)(struct device *, void *);
98 bus_dma_tag_t (*tba_get_dma_tag)(int);
99 };
100
101 /*
102 * Arguments used to attach TURBOchannel devices.
103 */
104 struct tc_attach_args {
105 bus_space_tag_t ta_memt;
106 bus_dma_tag_t ta_dmat;
107
108 char ta_modname[TC_ROM_LLEN+1];
109 u_int ta_slot;
110 tc_offset_t ta_offset;
111 tc_addr_t ta_addr;
112 void *ta_cookie;
113 u_int ta_busspeed; /* see TC_SPEED_* below */
114 };
115
116 /*
117 * Description of TURBOchannel slots, provided by machine-dependent
118 * code to the TURBOchannel bus driver.
119 */
120 struct tc_slotdesc {
121 tc_addr_t tcs_addr;
122 void *tcs_cookie;
123 int tcs_used;
124 };
125
126 /*
127 * Description of built-in TURBOchannel devices, provided by
128 * machine-dependent code to the TURBOchannel bus driver.
129 */
130 struct tc_builtin {
131 char *tcb_modname;
132 u_int tcb_slot;
133 tc_offset_t tcb_offset;
134 void *tcb_cookie;
135 };
136
137 /*
138 * Interrupt establishment functions.
139 */
140 int tc_checkslot(tc_addr_t, char *);
141 void tc_devinfo(const char *, char *, size_t);
142 void tcattach(struct device *, struct device *, void *);
143 void tc_intr_establish(struct device *, void *, int, int (*)(void *),
144 void *);
145 void tc_intr_disestablish(struct device *, void *);
146
147 /*
148 * Easy to remember names for TURBOchannel device locators.
149 */
150 #define tccf_slot cf_loc[0] /* slot */
151 #define tccf_offset cf_loc[1] /* offset */
152
153 #define TCCF_SLOT_UNKNOWN -1
154 #define TCCF_OFFSET_UNKNOWN -1
155
156 /*
157 * Miscellaneous definitions.
158 */
159 #define TC_SPEED_12_5_MHZ 0 /* 12.5MHz TC bus */
160 #define TC_SPEED_25_MHZ 1 /* 25MHz TC bus */
161
162 #endif /* __DEV_TC_TCVAR_H__ */