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
|
// SPDX-License-Identifier: GPL-2.0+
#include <cli.h>
#include <command.h>
#include <string.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
static const char *gd_flags_to_parser_name(void)
{
if (gd->flags & GD_FLG_HUSH_OLD_PARSER)
return "old";
if (gd->flags & GD_FLG_HUSH_MODERN_PARSER)
return "modern";
return NULL;
}
static int do_cli_get(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
const char *current = gd_flags_to_parser_name();
if (!current) {
printf("current cli value is not valid, this should not happen!\n");
return CMD_RET_FAILURE;
}
printf("%s\n", current);
return CMD_RET_SUCCESS;
}
static int parser_string_to_gd_flags(const char *parser)
{
if (!strcmp(parser, "old"))
return GD_FLG_HUSH_OLD_PARSER;
if (!strcmp(parser, "modern"))
return GD_FLG_HUSH_MODERN_PARSER;
return -1;
}
static int gd_flags_to_parser_config(int flag)
{
if (gd->flags & GD_FLG_HUSH_OLD_PARSER)
return CONFIG_VAL(HUSH_OLD_PARSER);
if (gd->flags & GD_FLG_HUSH_MODERN_PARSER)
return CONFIG_VAL(HUSH_MODERN_PARSER);
return -1;
}
static void reset_parser_gd_flags(void)
{
gd->flags &= ~GD_FLG_HUSH_OLD_PARSER;
gd->flags &= ~GD_FLG_HUSH_MODERN_PARSER;
}
static int do_cli_set(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
char *parser_name;
int parser_config;
int parser_flag;
if (argc < 2)
return CMD_RET_USAGE;
parser_name = argv[1];
parser_flag = parser_string_to_gd_flags(parser_name);
if (parser_flag == -1) {
printf("Bad value for parser name: %s\n", parser_name);
return CMD_RET_USAGE;
}
parser_config = gd_flags_to_parser_config(parser_flag);
switch (parser_config) {
case -1:
printf("Bad value for parser flags: %d\n", parser_flag);
return CMD_RET_FAILURE;
case 0:
printf("Want to set current parser to %s, but its code was not compiled!\n",
parser_name);
return CMD_RET_FAILURE;
}
reset_parser_gd_flags();
gd->flags |= parser_flag;
cli_init();
cli_loop();
/* cli_loop() should never return. */
return CMD_RET_FAILURE;
}
static struct cmd_tbl parser_sub[] = {
U_BOOT_CMD_MKENT(get, 1, 1, do_cli_get, "", ""),
U_BOOT_CMD_MKENT(set, 2, 1, do_cli_set, "", ""),
};
static int do_cli(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *cp;
if (argc < 2)
return CMD_RET_USAGE;
/* drop initial "parser" arg */
argc--;
argv++;
cp = find_cmd_tbl(argv[0], parser_sub, ARRAY_SIZE(parser_sub));
if (cp)
return cp->cmd(cmdtp, flag, argc, argv);
return CMD_RET_USAGE;
}
#if CONFIG_IS_ENABLED(SYS_LONGHELP)
static char cli_help_text[] =
"get - print current cli\n"
"set - set the current cli, possible value are: old, modern"
;
#endif
U_BOOT_CMD(cli, 3, 1, do_cli,
"cli",
#if CONFIG_IS_ENABLED(SYS_LONGHELP)
cli_help_text
#endif
);
|
