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// 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;
}
U_BOOT_LONGHELP(cli,
"get - print current cli\n"
"set - set the current cli, possible value are: old, modern\n");
U_BOOT_CMD(cli, 3, 1, do_cli,
"cli",
cli_help_text
);
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