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1 /*-
2  * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
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 unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/endian.h>
34
35 #include <machine/bus.h>
36 #include <arm/versatile/versatile_pci_bus_space.h>
37
38 /* Prototypes for all the bus_space structure functions */
39 bs_protos(generic);
40 bs_protos(generic_armv4);
41
42 /*
43  * Bus space that handles offsets in word for 1/2 bytes read/write access.
44  * Byte order of values is handled by device drivers itself. 
45  */
46 static struct bus_space bus_space_pcimem = {
47         /* cookie */
48         (void *) 0,
49
50         /* mapping/unmapping */
51         generic_bs_map,
52         generic_bs_unmap,
53         generic_bs_subregion,
54
55         /* allocation/deallocation */
56         NULL,
57         NULL,
58
59         /* barrier */
60         generic_bs_barrier,
61
62         /* read (single) */
63         generic_bs_r_1,
64         generic_armv4_bs_r_2,
65         generic_bs_r_4,
66         NULL,
67
68         /* read multiple */
69         generic_bs_rm_1,
70         generic_armv4_bs_rm_2,
71         generic_bs_rm_4,
72         NULL,
73
74         /* read region */
75         generic_bs_rr_1,
76         generic_armv4_bs_rr_2,
77         generic_bs_rr_4,
78         NULL,
79
80         /* write (single) */
81         generic_bs_w_1,
82         generic_armv4_bs_w_2,
83         generic_bs_w_4,
84         NULL,
85
86         /* write multiple */
87         generic_bs_wm_1,
88         generic_armv4_bs_wm_2,
89         generic_bs_wm_4,
90         NULL,
91
92         /* write region */
93         generic_bs_wr_1,
94         generic_armv4_bs_wr_2,
95         generic_bs_wr_4,
96         NULL,
97
98         /* set multiple */
99         NULL,
100         NULL,
101         NULL,
102         NULL,
103
104         /* set region */
105         NULL,
106         NULL,
107         generic_bs_sr_4,
108         NULL,
109
110         /* copy */
111         NULL,
112         NULL,
113         NULL,
114         NULL,
115
116         /* read (single) stream */
117         NULL,
118         NULL,
119         NULL,
120         NULL,
121
122         /* read multiple stream */
123         NULL,
124         NULL,
125         NULL,
126         NULL,
127
128         /* read region stream */
129         NULL,
130         NULL,
131         NULL,
132         NULL,
133
134         /* write (single) stream */
135         NULL,
136         NULL,
137         NULL,
138         NULL,
139
140         /* write multiple stream */
141         NULL,
142         NULL,
143         NULL,
144         NULL,
145
146         /* write region stream */
147         NULL,
148         NULL,
149         NULL,
150         NULL,
151 };
152
153 bus_space_tag_t versatile_bus_space_pcimem = &bus_space_pcimem;