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
|
/*
* Copyright (C) 2001-2003 Hewlett-Packard Co.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*
* This file is part of the ELILO, the EFI Linux boot loader.
*
* ELILO is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* ELILO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with ELILO; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Please check out the elilo.txt for complete documentation on how
* to use this program.
*/
#include <efi.h>
#include <efilib.h>
#include "elilo.h"
#ifdef CONFIG_CHOOSER_SIMPLE
#include "choosers/simple.h"
#endif
#ifdef CONFIG_CHOOSER_TEXTMENU
#include "choosers/textmenu.h"
#endif
static chooser_t *choosers_tab[]={
#ifdef CONFIG_CHOOSER_SIMPLE
&simple_chooser,
#endif
#ifdef CONFIG_CHOOSER_TEXTMENU
&textmenu_chooser,
#endif
NULL
};
/*
* The intent of this module is to provide a mechanism by which alternate
* choosers can be installed. Developers can write new choosers and
* add them to the list. They will be probe and the best match
* will be started first. It should be possible to switch to another
* chooser using a key combination. There is a default simple text-based
* chooser that must always be present.
*
* Currently you can specify a chooser via "-c name" when you invoke elilo,
* or via "chooser=name" in the config file. If the specified chooser
* probes ok it will be selected, otherwise the first one that probes ok
* will be used.
*
* XXX: at this time, not all chooser functionalities are implemented.
*
*/
chooser_func_t *kernel_chooser;
INTN
init_chooser(EFI_HANDLE dev)
{
chooser_t **p;
CHAR16 *chooser_name = L"none";
kernel_chooser = NULL;
for (p=choosers_tab; *p; p++) {
VERB_PRT(4, Print(L"trying chooser %s\n", (*p)->chooser_name));
if ((*p)->chooser_probe(dev) == 0) {
/*
* if that's the one we asked for, then go for it
*/
if (!StrCmp(elilo_opt.chooser, (*p)->chooser_name)) {
kernel_chooser = (*p)->chooser_func;
chooser_name = (*p)->chooser_name;
break;
}
if (kernel_chooser == NULL) {
kernel_chooser = (*p)->chooser_func;
chooser_name = (*p)->chooser_name;
}
}
}
if (kernel_chooser) {
VERB_PRT(2, Print(L"selected chooser %s\n", chooser_name));
return 0;
}
ERR_PRT((L"No chooser selected. Impossible to proceed"));
return -1;
}
INTN
exist_chooser(CHAR16 *name)
{
chooser_t **p;
for (p=choosers_tab; *p; p++) {
if (!StrCmp(name, (*p)->chooser_name)) return 0;
}
return -1;
}
|
