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