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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
#include <autoboot.h>
#include <cli.h>
#include <command.h>
#include <cli_hush.h>
#include <malloc.h>
#include <version.h>
/*
* Board-specific Platform code can reimplement show_boot_progress () if needed
*/
void inline __show_boot_progress (int val) {}
void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
#ifdef CONFIG_MODEM_SUPPORT
int do_mdm_init = 0;
extern void mdm_init(void); /* defined in board.c */
#endif
void main_loop(void)
{
#ifdef CONFIG_PREBOOT
char *p;
#endif
bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
#ifndef CONFIG_SYS_GENERIC_BOARD
puts("Warning: Your board does not use generic board. Please read\n");
puts("doc/README.generic-board and take action. Boards not\n");
puts("upgraded by the late 2014 may break or be removed.\n");
#endif
#ifdef CONFIG_MODEM_SUPPORT
debug("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init);
if (do_mdm_init) {
char *str = strdup(getenv("mdm_cmd"));
setenv("preboot", str); /* set or delete definition */
if (str != NULL)
free(str);
mdm_init(); /* wait for modem connection */
}
#endif /* CONFIG_MODEM_SUPPORT */
#ifdef CONFIG_VERSION_VARIABLE
{
setenv("ver", version_string); /* set version variable */
}
#endif /* CONFIG_VERSION_VARIABLE */
#ifdef CONFIG_SYS_HUSH_PARSER
u_boot_hush_start();
#endif
#if defined(CONFIG_HUSH_INIT_VAR)
hush_init_var();
#endif
#ifdef CONFIG_PREBOOT
p = getenv("preboot");
if (p != NULL) {
# ifdef CONFIG_AUTOBOOT_KEYED
int prev = disable_ctrlc(1); /* disable Control C checking */
# endif
run_command_list(p, -1, 0);
# ifdef CONFIG_AUTOBOOT_KEYED
disable_ctrlc(prev); /* restore Control C checking */
# endif
}
#endif /* CONFIG_PREBOOT */
#if defined(CONFIG_UPDATE_TFTP)
update_tftp(0UL);
#endif /* CONFIG_UPDATE_TFTP */
bootdelay_process();
/*
* Main Loop for Monitor Command Processing
*/
#ifdef CONFIG_SYS_HUSH_PARSER
parse_file_outer();
/* This point is never reached */
for (;;);
#else
cli_loop();
#endif /*CONFIG_SYS_HUSH_PARSER*/
}
/****************************************************************************/
/*
* Run a command using the selected parser.
*
* @param cmd Command to run
* @param flag Execution flags (CMD_FLAG_...)
* @return 0 on success, or != 0 on error.
*/
int run_command(const char *cmd, int flag)
{
#ifndef CONFIG_SYS_HUSH_PARSER
/*
* cli_run_command can return 0 or 1 for success, so clean up
* its result.
*/
if (cli_simple_run_command(cmd, flag) == -1)
return 1;
return 0;
#else
return parse_string_outer(cmd,
FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
#endif
}
int run_command_list(const char *cmd, int len, int flag)
{
int need_buff = 1;
char *buff = (char *)cmd; /* cast away const */
int rcode = 0;
if (len == -1) {
len = strlen(cmd);
#ifdef CONFIG_SYS_HUSH_PARSER
/* hush will never change our string */
need_buff = 0;
#else
/* the built-in parser will change our string if it sees \n */
need_buff = strchr(cmd, '\n') != NULL;
#endif
}
if (need_buff) {
buff = malloc(len + 1);
if (!buff)
return 1;
memcpy(buff, cmd, len);
buff[len] = '\0';
}
#ifdef CONFIG_SYS_HUSH_PARSER
rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON);
#else
/*
* This function will overwrite any \n it sees with a \0, which
* is why it can't work with a const char *. Here we are making
* using of internal knowledge of this function, to avoid always
* doing a malloc() which is actually required only in a case that
* is pretty rare.
*/
rcode = cli_simple_run_command_list(buff, flag);
if (need_buff)
free(buff);
#endif
return rcode;
}
/****************************************************************************/
#if defined(CONFIG_CMD_RUN)
int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
int i;
if (argc < 2)
return CMD_RET_USAGE;
for (i=1; i<argc; ++i) {
char *arg;
if ((arg = getenv (argv[i])) == NULL) {
printf ("## Error: \"%s\" not defined\n", argv[i]);
return 1;
}
if (run_command_list(arg, -1, flag) != 0)
return 1;
}
return 0;
}
#endif
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