1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* $OpenBSD: footbridge_com_io.c,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
/* $NetBSD: footbridge_com_io.c,v 1.4 2002/09/27 15:35:44 provos Exp $ */
/*
* Copyright (c) 1997 Mark Brinicombe.
* Copyright (c) 1997 Causality Limited.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Brinicombe
* for the NetBSD Project.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* This file provides the bus space tag for the footbridge serial console
*/
/*
* bus_space I/O functions for mainbus
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <machine/bus.h>
/* Proto types for all the bus_space structure functions */
bs_protos(fcomcons);
bs_protos(generic);
bs_protos(bs_notimpl);
/* Declare the fcomcons bus space tag */
struct bus_space fcomcons_bs_tag = {
/* cookie */
NULL,
/* mapping/unmapping */
fcomcons_bs_map,
fcomcons_bs_unmap,
fcomcons_bs_subregion,
/* allocation/deallocation */
fcomcons_bs_alloc,
fcomcons_bs_free,
/* get kernel virtual address */
0, /* never used */
/* Mmap bus space for user */
bs_notimpl_bs_mmap,
/* barrier */
fcomcons_bs_barrier,
/* read (single) */
bs_notimpl_bs_r_1,
bs_notimpl_bs_r_2,
generic_bs_r_4,
bs_notimpl_bs_r_8,
/* read multiple */
bs_notimpl_bs_rm_1,
bs_notimpl_bs_rm_2,
bs_notimpl_bs_rm_4,
bs_notimpl_bs_rm_8,
/* read region */
bs_notimpl_bs_rr_1,
bs_notimpl_bs_rr_2,
bs_notimpl_bs_rr_4,
bs_notimpl_bs_rr_8,
/* write (single) */
bs_notimpl_bs_w_1,
bs_notimpl_bs_w_2,
generic_bs_w_4,
bs_notimpl_bs_w_8,
/* write multiple */
bs_notimpl_bs_wm_1,
bs_notimpl_bs_wm_2,
bs_notimpl_bs_wm_4,
bs_notimpl_bs_wm_8,
/* write region */
bs_notimpl_bs_wr_1,
bs_notimpl_bs_wr_2,
bs_notimpl_bs_wr_4,
bs_notimpl_bs_wr_8,
bs_notimpl_bs_sm_1,
bs_notimpl_bs_sm_2,
bs_notimpl_bs_sm_4,
bs_notimpl_bs_sm_8,
/* set region */
bs_notimpl_bs_sr_1,
bs_notimpl_bs_sr_2,
bs_notimpl_bs_sr_4,
bs_notimpl_bs_sr_8,
/* copy */
bs_notimpl_bs_c_1,
bs_notimpl_bs_c_2,
bs_notimpl_bs_c_4,
bs_notimpl_bs_c_8,
};
/* bus space functions */
int
fcomcons_bs_map(t, bpa, size, cacheable, bshp)
void *t;
bus_addr_t bpa;
bus_size_t size;
int cacheable;
bus_space_handle_t *bshp;
{
/*
* Temporary implementation as all I/O is already mapped etc.
*
* Eventually this function will do the mapping check for multiple maps
*/
*bshp = bpa;
return(0);
}
int
fcomcons_bs_alloc(t, rstart, rend, size, alignment, boundary, cacheable,
bpap, bshp)
void *t;
bus_addr_t rstart, rend;
bus_size_t size, alignment, boundary;
int cacheable;
bus_addr_t *bpap;
bus_space_handle_t *bshp;
{
panic("fcomcons_alloc(): Help!");
}
void
fcomcons_bs_unmap(t, bsh, size)
void *t;
bus_space_handle_t bsh;
bus_size_t size;
{
/*
* Temporary implementation
*/
}
void
fcomcons_bs_free(t, bsh, size)
void *t;
bus_space_handle_t bsh;
bus_size_t size;
{
panic("fcomcons_free(): Help!");
/* fcomcons_unmap() does all that we need to do. */
/* fcomcons_unmap(t, bsh, size);*/
}
int
fcomcons_bs_subregion(t, bsh, offset, size, nbshp)
void *t;
bus_space_handle_t bsh;
bus_size_t offset, size;
bus_space_handle_t *nbshp;
{
*nbshp = bsh + offset;
return (0);
}
void
fcomcons_bs_barrier(t, bsh, offset, len, flags)
void *t;
bus_space_handle_t bsh;
bus_size_t offset, len;
int flags;
{
}
/* End of footbridge_com_io.c */
|
