Rev 186 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
186 | decky | 1 | /* |
2 | * Copyright (C) 2005 Martin Decky |
||
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 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - 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 | * - The name of the author may not be used to endorse or promote products |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
29 | #include <arch/drivers/ofw.h> |
||
30 | #include <stdarg.h> |
||
31 | |||
32 | ofw_entry ofw; |
||
33 | |||
191 | decky | 34 | phandle ofw_chosen; |
35 | ihandle ofw_stdout; |
||
36 | |||
186 | decky | 37 | void ofw_init(void) |
38 | { |
||
191 | decky | 39 | ofw_chosen = ofw_find_device("/chosen"); |
186 | decky | 40 | if (ofw_chosen == -1) |
41 | ofw_done(); |
||
42 | |||
43 | if (ofw_call("getprop", 4, 1, ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
||
44 | ofw_stdout = 0; |
||
45 | } |
||
46 | |||
47 | void ofw_done(void) |
||
48 | { |
||
49 | ofw_call("exit", 0, 0); |
||
50 | cpu_halt(); |
||
51 | } |
||
52 | |||
53 | int ofw_call(const char *service, const int nargs, const int nret, ...) |
||
54 | { |
||
55 | va_list list; |
||
191 | decky | 56 | ofw_args_t args; |
186 | decky | 57 | int i; |
58 | |||
59 | args.service = service; |
||
60 | args.nargs = nargs; |
||
61 | args.nret = nret; |
||
62 | |||
63 | va_start(list, nret); |
||
64 | for (i = 0; i < nargs; i++) |
||
65 | args.args[i] = va_arg(list, ofw_arg_t); |
||
66 | va_end(list); |
||
67 | |||
68 | for (i = 0; i < nret; i++) |
||
69 | args.args[i + nargs] = 0; |
||
70 | |||
71 | ofw(&args); |
||
72 | |||
73 | return args.args[nargs]; |
||
74 | } |
||
75 | |||
76 | void ofw_putchar(const char ch) |
||
77 | { |
||
78 | if (ofw_stdout == 0) |
||
79 | return; |
||
80 | |||
191 | decky | 81 | ofw_call("write", 3, 1, ofw_stdout, &ch, 1); |
186 | decky | 82 | } |
83 | |||
191 | decky | 84 | phandle ofw_find_device(const char *name) |
85 | { |
||
86 | return ofw_call("finddevice", 1, 1, name); |
||
87 | } |
||
88 | |||
89 | int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen) |
||
90 | { |
||
91 | return ofw_call("getprop", 4, 1, device, name, buf, buflen); |
||
92 | } |
||
93 | |||
186 | decky | 94 | void putchar(const char ch) |
95 | { |
||
96 | ofw_putchar(ch); |
||
97 | } |