-
-#if defined(CONFIG_UPDATE_TFTP)
- update_tftp (0UL);
-#endif /* CONFIG_UPDATE_TFTP */
-
-#if defined(CONFIG_BOOTDELAY)
- s = getenv ("bootdelay");
- bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
-
- debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay);
-
-#if defined(CONFIG_MENU_SHOW)
- bootdelay = menu_show(bootdelay);
-#endif
-# ifdef CONFIG_BOOT_RETRY_TIME
- init_cmd_timeout ();
-# endif /* CONFIG_BOOT_RETRY_TIME */
-
-#ifdef CONFIG_POST
- if (gd->flags & GD_FLG_POSTFAIL) {
- s = getenv("failbootcmd");
- }
- else
-#endif /* CONFIG_POST */
-#ifdef CONFIG_BOOTCOUNT_LIMIT
- if (bootlimit && (bootcount > bootlimit)) {
- printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
- (unsigned)bootlimit);
- s = getenv ("altbootcmd");
- }
- else
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
- s = getenv ("bootcmd");
-#ifdef CONFIG_OF_CONTROL
- /* Allow the fdt to override the boot command */
- env = fdtdec_get_config_string(gd->fdt_blob, "bootcmd");
- if (env)
- s = env;
-
- process_fdt_options(gd->fdt_blob);
-
- /*
- * If the bootsecure option was chosen, use secure_boot_cmd().
- * Always use 'env' in this case, since bootsecure requres that the
- * bootcmd was specified in the FDT too.
- */
- if (fdtdec_get_config_int(gd->fdt_blob, "bootsecure", 0))
- secure_boot_cmd(env);
-
-#endif /* CONFIG_OF_CONTROL */
-
- debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
-
- if (bootdelay != -1 && s && !abortboot(bootdelay)) {
-# ifdef CONFIG_AUTOBOOT_KEYED
- int prev = disable_ctrlc(1); /* disable Control C checking */
-# endif
-
- run_command_list(s, -1, 0);
-
-# ifdef CONFIG_AUTOBOOT_KEYED
- disable_ctrlc(prev); /* restore Control C checking */
-# endif
- }
-
-# ifdef CONFIG_MENUKEY
- if (menukey == CONFIG_MENUKEY) {
- s = getenv("menucmd");
- if (s)
- run_command_list(s, -1, 0);
- }
-#endif /* CONFIG_MENUKEY */
-#endif /* CONFIG_BOOTDELAY */
-
- /*
- * Main Loop for Monitor Command Processing
- */
-#ifdef CONFIG_SYS_HUSH_PARSER
- parse_file_outer();
- /* This point is never reached */
- for (;;);
-#else
- for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
- if (rc >= 0) {
- /* Saw enough of a valid command to
- * restart the timeout.
- */
- reset_cmd_timeout();
- }
-#endif
- len = readline (CONFIG_SYS_PROMPT);
-
- flag = 0; /* assume no special flags for now */
- if (len > 0)
- strcpy (lastcommand, console_buffer);
- else if (len == 0)
- flag |= CMD_FLAG_REPEAT;
-#ifdef CONFIG_BOOT_RETRY_TIME
- else if (len == -2) {
- /* -2 means timed out, retry autoboot
- */
- puts ("\nTimed out waiting for command\n");
-# ifdef CONFIG_RESET_TO_RETRY
- /* Reinit board to run initialization code again */
- do_reset (NULL, 0, 0, NULL);
-# else
- return; /* retry autoboot */
-# endif
- }
-#endif
-
- if (len == -1)
- puts ("<INTERRUPT>\n");
- else
- rc = run_command(lastcommand, flag);
-
- if (rc <= 0) {
- /* invalid command or not repeatable, forget it */
- lastcommand[0] = 0;
- }
- }
-#endif /*CONFIG_SYS_HUSH_PARSER*/
-}
-
-#ifdef CONFIG_BOOT_RETRY_TIME
-/***************************************************************************
- * initialize command line timeout
- */
-void init_cmd_timeout(void)
-{
- char *s = getenv ("bootretry");
-
- if (s != NULL)
- retry_time = (int)simple_strtol(s, NULL, 10);
- else
- retry_time = CONFIG_BOOT_RETRY_TIME;
-
- if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
- retry_time = CONFIG_BOOT_RETRY_MIN;
-}
-
-/***************************************************************************
- * reset command line timeout to retry_time seconds
- */
-void reset_cmd_timeout(void)
-{
- endtime = endtick(retry_time);
-}
-#endif
-
-#ifdef CONFIG_CMDLINE_EDITING
-
-/*
- * cmdline-editing related codes from vivi.
- * Author: Janghoon Lyu <nandy@mizi.com>
- */
-
-#define putnstr(str,n) do { \
- printf ("%.*s", (int)n, str); \
- } while (0)
-
-#define CTL_CH(c) ((c) - 'a' + 1)
-#define CTL_BACKSPACE ('\b')
-#define DEL ((char)255)
-#define DEL7 ((char)127)
-#define CREAD_HIST_CHAR ('!')
-
-#define getcmd_putch(ch) putc(ch)
-#define getcmd_getch() getc()
-#define getcmd_cbeep() getcmd_putch('\a')
-
-#define HIST_MAX 20
-#define HIST_SIZE CONFIG_SYS_CBSIZE
-
-static int hist_max;
-static int hist_add_idx;
-static int hist_cur = -1;
-static unsigned hist_num;
-
-static char *hist_list[HIST_MAX];
-static char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */
-
-#define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1)
-
-static void hist_init(void)
-{
- int i;
-
- hist_max = 0;
- hist_add_idx = 0;
- hist_cur = -1;
- hist_num = 0;
-
- for (i = 0; i < HIST_MAX; i++) {
- hist_list[i] = hist_lines[i];
- hist_list[i][0] = '\0';
- }
-}
-
-static void cread_add_to_hist(char *line)
-{
- strcpy(hist_list[hist_add_idx], line);
-
- if (++hist_add_idx >= HIST_MAX)
- hist_add_idx = 0;
-
- if (hist_add_idx > hist_max)
- hist_max = hist_add_idx;
-
- hist_num++;
-}
-
-static char* hist_prev(void)
-{
- char *ret;
- int old_cur;
-
- if (hist_cur < 0)
- return NULL;
-
- old_cur = hist_cur;
- if (--hist_cur < 0)
- hist_cur = hist_max;
-
- if (hist_cur == hist_add_idx) {
- hist_cur = old_cur;
- ret = NULL;
- } else
- ret = hist_list[hist_cur];
-
- return (ret);
-}
-
-static char* hist_next(void)
-{
- char *ret;
-
- if (hist_cur < 0)
- return NULL;
-
- if (hist_cur == hist_add_idx)
- return NULL;
-
- if (++hist_cur > hist_max)
- hist_cur = 0;
-
- if (hist_cur == hist_add_idx) {
- ret = "";
- } else
- ret = hist_list[hist_cur];
-
- return (ret);
-}
-
-#ifndef CONFIG_CMDLINE_EDITING
-static void cread_print_hist_list(void)
-{
- int i;
- unsigned long n;
-
- n = hist_num - hist_max;
-
- i = hist_add_idx + 1;
- while (1) {
- if (i > hist_max)
- i = 0;
- if (i == hist_add_idx)
- break;
- printf("%s\n", hist_list[i]);
- n++;
- i++;
- }
-}
-#endif /* CONFIG_CMDLINE_EDITING */
-
-#define BEGINNING_OF_LINE() { \
- while (num) { \
- getcmd_putch(CTL_BACKSPACE); \
- num--; \
- } \
-}
-
-#define ERASE_TO_EOL() { \
- if (num < eol_num) { \
- printf("%*s", (int)(eol_num - num), ""); \
- do { \
- getcmd_putch(CTL_BACKSPACE); \
- } while (--eol_num > num); \
- } \
-}
-
-#define REFRESH_TO_EOL() { \
- if (num < eol_num) { \
- wlen = eol_num - num; \
- putnstr(buf + num, wlen); \
- num = eol_num; \
- } \
-}
-
-static void cread_add_char(char ichar, int insert, unsigned long *num,
- unsigned long *eol_num, char *buf, unsigned long len)
-{
- unsigned long wlen;
-
- /* room ??? */
- if (insert || *num == *eol_num) {
- if (*eol_num > len - 1) {
- getcmd_cbeep();
- return;
- }
- (*eol_num)++;
- }
-
- if (insert) {
- wlen = *eol_num - *num;
- if (wlen > 1) {
- memmove(&buf[*num+1], &buf[*num], wlen-1);
- }
-
- buf[*num] = ichar;
- putnstr(buf + *num, wlen);
- (*num)++;
- while (--wlen) {
- getcmd_putch(CTL_BACKSPACE);
- }
- } else {
- /* echo the character */
- wlen = 1;
- buf[*num] = ichar;
- putnstr(buf + *num, wlen);
- (*num)++;
- }
-}
-
-static void cread_add_str(char *str, int strsize, int insert, unsigned long *num,
- unsigned long *eol_num, char *buf, unsigned long len)
-{
- while (strsize--) {
- cread_add_char(*str, insert, num, eol_num, buf, len);
- str++;
- }
-}
-
-static int cread_line(const char *const prompt, char *buf, unsigned int *len,
- int timeout)
-{
- unsigned long num = 0;
- unsigned long eol_num = 0;
- unsigned long wlen;
- char ichar;
- int insert = 1;
- int esc_len = 0;
- char esc_save[8];
- int init_len = strlen(buf);
- int first = 1;
-
- if (init_len)
- cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len);
-
- while (1) {
-#ifdef CONFIG_BOOT_RETRY_TIME
- while (!tstc()) { /* while no incoming data */
- if (retry_time >= 0 && get_ticks() > endtime)
- return (-2); /* timed out */
- WATCHDOG_RESET();
- }
-#endif
- if (first && timeout) {
- uint64_t etime = endtick(timeout);
-
- while (!tstc()) { /* while no incoming data */
- if (get_ticks() >= etime)
- return -2; /* timed out */
- WATCHDOG_RESET();
- }
- first = 0;
- }
-
- ichar = getcmd_getch();
-
- if ((ichar == '\n') || (ichar == '\r')) {
- putc('\n');
- break;
- }
-
- /*
- * handle standard linux xterm esc sequences for arrow key, etc.
- */
- if (esc_len != 0) {
- if (esc_len == 1) {
- if (ichar == '[') {
- esc_save[esc_len] = ichar;
- esc_len = 2;
- } else {
- cread_add_str(esc_save, esc_len, insert,
- &num, &eol_num, buf, *len);
- esc_len = 0;
- }
- continue;
- }
-
- switch (ichar) {
-
- case 'D': /* <- key */
- ichar = CTL_CH('b');
- esc_len = 0;
- break;
- case 'C': /* -> key */
- ichar = CTL_CH('f');
- esc_len = 0;
- break; /* pass off to ^F handler */
- case 'H': /* Home key */
- ichar = CTL_CH('a');
- esc_len = 0;
- break; /* pass off to ^A handler */
- case 'A': /* up arrow */
- ichar = CTL_CH('p');
- esc_len = 0;
- break; /* pass off to ^P handler */
- case 'B': /* down arrow */
- ichar = CTL_CH('n');
- esc_len = 0;
- break; /* pass off to ^N handler */
- default:
- esc_save[esc_len++] = ichar;
- cread_add_str(esc_save, esc_len, insert,
- &num, &eol_num, buf, *len);
- esc_len = 0;
- continue;
- }
- }
-
- switch (ichar) {
- case 0x1b:
- if (esc_len == 0) {
- esc_save[esc_len] = ichar;
- esc_len = 1;
- } else {
- puts("impossible condition #876\n");
- esc_len = 0;
- }
- break;
-
- case CTL_CH('a'):
- BEGINNING_OF_LINE();
- break;
- case CTL_CH('c'): /* ^C - break */
- *buf = '\0'; /* discard input */
- return (-1);
- case CTL_CH('f'):
- if (num < eol_num) {
- getcmd_putch(buf[num]);
- num++;
- }
- break;
- case CTL_CH('b'):
- if (num) {
- getcmd_putch(CTL_BACKSPACE);
- num--;
- }
- break;
- case CTL_CH('d'):
- if (num < eol_num) {
- wlen = eol_num - num - 1;
- if (wlen) {
- memmove(&buf[num], &buf[num+1], wlen);
- putnstr(buf + num, wlen);
- }
-
- getcmd_putch(' ');
- do {
- getcmd_putch(CTL_BACKSPACE);
- } while (wlen--);
- eol_num--;
- }
- break;
- case CTL_CH('k'):
- ERASE_TO_EOL();
- break;
- case CTL_CH('e'):
- REFRESH_TO_EOL();
- break;
- case CTL_CH('o'):
- insert = !insert;
- break;
- case CTL_CH('x'):
- case CTL_CH('u'):
- BEGINNING_OF_LINE();
- ERASE_TO_EOL();
- break;
- case DEL:
- case DEL7:
- case 8:
- if (num) {
- wlen = eol_num - num;
- num--;
- memmove(&buf[num], &buf[num+1], wlen);
- getcmd_putch(CTL_BACKSPACE);
- putnstr(buf + num, wlen);
- getcmd_putch(' ');
- do {
- getcmd_putch(CTL_BACKSPACE);
- } while (wlen--);
- eol_num--;
- }
- break;
- case CTL_CH('p'):
- case CTL_CH('n'):
- {
- char * hline;
-
- esc_len = 0;
-
- if (ichar == CTL_CH('p'))
- hline = hist_prev();
- else
- hline = hist_next();
-
- if (!hline) {
- getcmd_cbeep();
- continue;
- }
-
- /* nuke the current line */
- /* first, go home */
- BEGINNING_OF_LINE();
-
- /* erase to end of line */
- ERASE_TO_EOL();
-
- /* copy new line into place and display */
- strcpy(buf, hline);
- eol_num = strlen(buf);
- REFRESH_TO_EOL();
- continue;
- }
-#ifdef CONFIG_AUTO_COMPLETE
- case '\t': {
- int num2, col;
-
- /* do not autocomplete when in the middle */
- if (num < eol_num) {
- getcmd_cbeep();
- break;
- }
-
- buf[num] = '\0';
- col = strlen(prompt) + eol_num;
- num2 = num;
- if (cmd_auto_complete(prompt, buf, &num2, &col)) {
- col = num2 - num;
- num += col;
- eol_num += col;
- }
- break;
- }
-#endif
- default:
- cread_add_char(ichar, insert, &num, &eol_num, buf, *len);
- break;
- }
- }
- *len = eol_num;
- buf[eol_num] = '\0'; /* lose the newline */
-
- if (buf[0] && buf[0] != CREAD_HIST_CHAR)
- cread_add_to_hist(buf);
- hist_cur = hist_add_idx;
-
- return 0;
-}
-
-#endif /* CONFIG_CMDLINE_EDITING */
-
-/****************************************************************************/
-
-/*
- * Prompt for input and read a line.
- * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
- * time out when time goes past endtime (timebase time in ticks).
- * Return: number of read characters
- * -1 if break
- * -2 if timed out
- */
-int readline (const char *const prompt)
-{
- /*
- * If console_buffer isn't 0-length the user will be prompted to modify
- * it instead of entering it from scratch as desired.
- */
- console_buffer[0] = '\0';
-
- return readline_into_buffer(prompt, console_buffer, 0);
-}
-
-
-int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
-{
- char *p = buffer;
-#ifdef CONFIG_CMDLINE_EDITING
- unsigned int len = CONFIG_SYS_CBSIZE;
- int rc;
- static int initted = 0;
-
- /*
- * History uses a global array which is not
- * writable until after relocation to RAM.
- * Revert to non-history version if still
- * running from flash.
- */
- if (gd->flags & GD_FLG_RELOC) {
- if (!initted) {
- hist_init();
- initted = 1;
- }
-
- if (prompt)
- puts (prompt);
-
- rc = cread_line(prompt, p, &len, timeout);
- return rc < 0 ? rc : len;
-
- } else {
-#endif /* CONFIG_CMDLINE_EDITING */
- char * p_buf = p;
- int n = 0; /* buffer index */
- int plen = 0; /* prompt length */
- int col; /* output column cnt */
- char c;
-
- /* print prompt */
- if (prompt) {
- plen = strlen (prompt);
- puts (prompt);
- }
- col = plen;
-
- for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
- while (!tstc()) { /* while no incoming data */
- if (retry_time >= 0 && get_ticks() > endtime)
- return (-2); /* timed out */
- WATCHDOG_RESET();
- }
-#endif
- WATCHDOG_RESET(); /* Trigger watchdog, if needed */
-
-#ifdef CONFIG_SHOW_ACTIVITY
- while (!tstc()) {
- show_activity(0);
- WATCHDOG_RESET();
- }
-#endif
- c = getc();
-
- /*
- * Special character handling
- */
- switch (c) {
- case '\r': /* Enter */
- case '\n':
- *p = '\0';
- puts ("\r\n");
- return (p - p_buf);
-
- case '\0': /* nul */
- continue;
-
- case 0x03: /* ^C - break */
- p_buf[0] = '\0'; /* discard input */
- return (-1);
-
- case 0x15: /* ^U - erase line */
- while (col > plen) {
- puts (erase_seq);
- --col;
- }
- p = p_buf;
- n = 0;
- continue;
-
- case 0x17: /* ^W - erase word */
- p=delete_char(p_buf, p, &col, &n, plen);
- while ((n > 0) && (*p != ' ')) {
- p=delete_char(p_buf, p, &col, &n, plen);
- }
- continue;
-
- case 0x08: /* ^H - backspace */
- case 0x7F: /* DEL - backspace */
- p=delete_char(p_buf, p, &col, &n, plen);
- continue;
-
- default:
- /*
- * Must be a normal character then
- */
- if (n < CONFIG_SYS_CBSIZE-2) {
- if (c == '\t') { /* expand TABs */
-#ifdef CONFIG_AUTO_COMPLETE
- /* if auto completion triggered just continue */
- *p = '\0';
- if (cmd_auto_complete(prompt, console_buffer, &n, &col)) {
- p = p_buf + n; /* reset */
- continue;
- }
-#endif
- puts (tab_seq+(col&07));
- col += 8 - (col&07);
- } else {
- char buf[2];
-
- /*
- * Echo input using puts() to force am
- * LCD flush if we are using an LCD
- */
- ++col;
- buf[0] = c;
- buf[1] = '\0';
- puts(buf);
- }
- *p++ = c;
- ++n;
- } else { /* Buffer full */
- putc ('\a');
- }
- }
- }
-#ifdef CONFIG_CMDLINE_EDITING
- }
-#endif