* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * Add to readline cmdline-editing by
- * (C) Copyright 2005
- * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com>
- *
* SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
-#include <command.h>
-#include <fdtdec.h>
-#include <hush.h>
-#include <malloc.h>
-#include <menu.h>
-#include <post.h>
+#include <autoboot.h>
+#include <cli.h>
#include <version.h>
-#include <watchdog.h>
-#include <linux/ctype.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* 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")));
-
-#define MAX_DELAY_STOP_STR 32
-
-#define DEBUG_PARSER 0 /* set to 1 to debug */
-
-#define debug_parser(fmt, args...) \
- debug_cond(DEBUG_PARSER, fmt, ##args)
-
-#ifndef DEBUG_BOOTKEYS
-#define DEBUG_BOOTKEYS 0
-#endif
-#define debug_bootkeys(fmt, args...) \
- debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
-
-char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */
-
-static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
-static const char erase_seq[] = "\b \b"; /* erase sequence */
-static const char tab_seq[] = " "; /* used to expand TABs */
-
-#ifdef CONFIG_BOOT_RETRY_TIME
-static uint64_t endtime = 0; /* must be set, default is instant timeout */
-static int retry_time = -1; /* -1 so can call readline before main_loop */
-#endif
-
-#define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
-
-#ifndef CONFIG_BOOT_RETRY_MIN
-#define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
-#endif
-
-#ifdef CONFIG_MODEM_SUPPORT
-int do_mdm_init = 0;
-extern void mdm_init(void); /* defined in board.c */
-#endif
+__weak void show_boot_progress(int val) {}
-/***************************************************************************
- * Watch for 'delay' seconds for autoboot stop or autoboot delay string.
- * returns: 0 - no key string, allow autoboot 1 - got key string, abort
- */
-#if defined(CONFIG_BOOTDELAY)
-# if defined(CONFIG_AUTOBOOT_KEYED)
-static int abortboot_keyed(int bootdelay)
+static void modem_init(void)
{
- int abort = 0;
- uint64_t etime = endtick(bootdelay);
- struct {
- char* str;
- u_int len;
- int retry;
- }
- delaykey [] = {
- { str: getenv ("bootdelaykey"), retry: 1 },
- { str: getenv ("bootdelaykey2"), retry: 1 },
- { str: getenv ("bootstopkey"), retry: 0 },
- { str: getenv ("bootstopkey2"), retry: 0 },
- };
-
- char presskey [MAX_DELAY_STOP_STR];
- u_int presskey_len = 0;
- u_int presskey_max = 0;
- u_int i;
-
-#ifndef CONFIG_ZERO_BOOTDELAY_CHECK
- if (bootdelay == 0)
- return 0;
-#endif
-
-# ifdef CONFIG_AUTOBOOT_PROMPT
- printf(CONFIG_AUTOBOOT_PROMPT);
-# endif
-
-# ifdef CONFIG_AUTOBOOT_DELAY_STR
- if (delaykey[0].str == NULL)
- delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
-# endif
-# ifdef CONFIG_AUTOBOOT_DELAY_STR2
- if (delaykey[1].str == NULL)
- delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2;
-# endif
-# ifdef CONFIG_AUTOBOOT_STOP_STR
- if (delaykey[2].str == NULL)
- delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR;
-# endif
-# ifdef CONFIG_AUTOBOOT_STOP_STR2
- if (delaykey[3].str == NULL)
- delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2;
-# endif
-
- for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) {
- delaykey[i].len = delaykey[i].str == NULL ?
- 0 : strlen (delaykey[i].str);
- delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
- MAX_DELAY_STOP_STR : delaykey[i].len;
-
- presskey_max = presskey_max > delaykey[i].len ?
- presskey_max : delaykey[i].len;
-
- debug_bootkeys("%s key:<%s>\n",
- delaykey[i].retry ? "delay" : "stop",
- delaykey[i].str ? delaykey[i].str : "NULL");
- }
-
- /* In order to keep up with incoming data, check timeout only
- * when catch up.
- */
- do {
- if (tstc()) {
- if (presskey_len < presskey_max) {
- presskey [presskey_len ++] = getc();
- }
- else {
- for (i = 0; i < presskey_max - 1; i ++)
- presskey [i] = presskey [i + 1];
-
- presskey [i] = getc();
- }
- }
-
- for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) {
- if (delaykey[i].len > 0 &&
- presskey_len >= delaykey[i].len &&
- memcmp (presskey + presskey_len - delaykey[i].len,
- delaykey[i].str,
- delaykey[i].len) == 0) {
- debug_bootkeys("got %skey\n",
- delaykey[i].retry ? "delay" :
- "stop");
-
-# ifdef CONFIG_BOOT_RETRY_TIME
- /* don't retry auto boot */
- if (! delaykey[i].retry)
- retry_time = -1;
-# endif
- abort = 1;
- }
- }
- } while (!abort && get_ticks() <= etime);
-
- if (!abort)
- debug_bootkeys("key timeout\n");
-
-#ifdef CONFIG_SILENT_CONSOLE
- if (abort)
- gd->flags &= ~GD_FLG_SILENT;
-#endif
-
- return abort;
-}
-
-# else /* !defined(CONFIG_AUTOBOOT_KEYED) */
-
-#ifdef CONFIG_MENUKEY
-static int menukey = 0;
-#endif
-
-static int abortboot_normal(int bootdelay)
-{
- int abort = 0;
- unsigned long ts;
-
-#ifdef CONFIG_MENUPROMPT
- printf(CONFIG_MENUPROMPT);
-#else
- if (bootdelay >= 0)
- printf("Hit any key to stop autoboot: %2d ", bootdelay);
-#endif
-
-#if defined CONFIG_ZERO_BOOTDELAY_CHECK
- /*
- * Check if key already pressed
- * Don't check if bootdelay < 0
- */
- if (bootdelay >= 0) {
- if (tstc()) { /* we got a key press */
- (void) getc(); /* consume input */
- puts ("\b\b\b 0");
- abort = 1; /* don't auto boot */
- }
- }
-#endif
-
- while ((bootdelay > 0) && (!abort)) {
- --bootdelay;
- /* delay 1000 ms */
- ts = get_timer(0);
- do {
- if (tstc()) { /* we got a key press */
- abort = 1; /* don't auto boot */
- bootdelay = 0; /* no more delay */
-# ifdef CONFIG_MENUKEY
- menukey = getc();
-# else
- (void) getc(); /* consume input */
-# endif
- break;
- }
- udelay(10000);
- } while (!abort && get_timer(ts) < 1000);
-
- printf("\b\b\b%2d ", bootdelay);
- }
-
- putc('\n');
-
-#ifdef CONFIG_SILENT_CONSOLE
- if (abort)
- gd->flags &= ~GD_FLG_SILENT;
-#endif
-
- return abort;
-}
-# endif /* CONFIG_AUTOBOOT_KEYED */
-
-static int abortboot(int bootdelay)
-{
-#ifdef CONFIG_AUTOBOOT_KEYED
- return abortboot_keyed(bootdelay);
-#else
- return abortboot_normal(bootdelay);
-#endif
-}
-#endif /* CONFIG_BOOTDELAY */
-
-/*
- * Runs the given boot command securely. Specifically:
- * - Doesn't run the command with the shell (run_command or parse_string_outer),
- * since that's a lot of code surface that an attacker might exploit.
- * Because of this, we don't do any argument parsing--the secure boot command
- * has to be a full-fledged u-boot command.
- * - Doesn't check for keypresses before booting, since that could be a
- * security hole; also disables Ctrl-C.
- * - Doesn't allow the command to return.
- *
- * Upon any failures, this function will drop into an infinite loop after
- * printing the error message to console.
- */
-
-#if defined(CONFIG_BOOTDELAY) && defined(CONFIG_OF_CONTROL)
-static void secure_boot_cmd(char *cmd)
-{
- cmd_tbl_t *cmdtp;
- int rc;
-
- if (!cmd) {
- printf("## Error: Secure boot command not specified\n");
- goto err;
- }
-
- /* Disable Ctrl-C just in case some command is used that checks it. */
- disable_ctrlc(1);
-
- /* Find the command directly. */
- cmdtp = find_cmd(cmd);
- if (!cmdtp) {
- printf("## Error: \"%s\" not defined\n", cmd);
- goto err;
- }
-
- /* Run the command, forcing no flags and faking argc and argv. */
- rc = (cmdtp->cmd)(cmdtp, 0, 1, &cmd);
-
- /* Shouldn't ever return from boot command. */
- printf("## Error: \"%s\" returned (code %d)\n", cmd, rc);
-
-err:
- /*
- * Not a whole lot to do here. Rebooting won't help much, since we'll
- * just end up right back here. Just loop.
- */
- hang();
-}
-
-static void process_fdt_options(const void *blob)
-{
- ulong addr;
-
- /* Add an env variable to point to a kernel payload, if available */
- addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0);
- if (addr)
- setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
-
- /* Add an env variable to point to a root disk, if available */
- addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0);
- if (addr)
- setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
-}
-#endif /* CONFIG_OF_CONTROL */
-
-#ifdef CONFIG_BOOTDELAY
-static void process_boot_delay(void)
-{
-#ifdef CONFIG_OF_CONTROL
- char *env;
-#endif
- char *s;
- int bootdelay;
-#ifdef CONFIG_BOOTCOUNT_LIMIT
- unsigned long bootcount = 0;
- unsigned long bootlimit = 0;
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
-
-#ifdef CONFIG_BOOTCOUNT_LIMIT
- bootcount = bootcount_load();
- bootcount++;
- bootcount_store (bootcount);
- setenv_ulong("bootcount", bootcount);
- bootlimit = getenv_ulong("bootlimit", 10, 0);
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
-
- s = getenv ("bootdelay");
- bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
-
-#ifdef CONFIG_OF_CONTROL
- bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
- bootdelay);
-#endif
-
- 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_MODEM_SUPPORT
+ debug("DEBUG: main_loop: gd->do_mdm_init=%lu\n", gd->do_mdm_init);
+ if (gd->do_mdm_init) {
+ char *str = getenv("mdm_cmd");
-#ifdef CONFIG_MENUKEY
- if (menukey == CONFIG_MENUKEY) {
- s = getenv("menucmd");
- if (s)
- run_command_list(s, -1, 0);
+ setenv("preboot", str); /* set or delete definition */
+ mdm_init(); /* wait for modem connection */
}
-#endif /* CONFIG_MENUKEY */
+#endif /* CONFIG_MODEM_SUPPORT */
}
-#endif /* CONFIG_BOOTDELAY */
-void main_loop(void)
+static void run_preboot_environment_command(void)
{
-#ifndef CONFIG_SYS_HUSH_PARSER
- static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, };
- int len;
- int rc = 1;
- int flag;
-#endif
#ifdef CONFIG_PREBOOT
char *p;
-#endif
- bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
-
-#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
# endif
}
#endif /* CONFIG_PREBOOT */
-
-#if defined(CONFIG_UPDATE_TFTP)
- update_tftp(0UL);
-#endif /* CONFIG_UPDATE_TFTP */
-
-#ifdef CONFIG_BOOTDELAY
- process_boot_delay();
-#endif
- /*
- * 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 || len < 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);
-
-#ifdef CONFIG_SHOW_ACTIVITY
- while (!tstc()) {
- extern void show_activity(int arg);
- show_activity(0);
- WATCHDOG_RESET();
- }
-#endif
- 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 an
- * 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
-}
-
-/****************************************************************************/
-
-static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
-{
- char *s;
-
- if (*np == 0) {
- return (p);
- }
-
- if (*(--p) == '\t') { /* will retype the whole line */
- while (*colp > plen) {
- puts (erase_seq);
- (*colp)--;
- }
- for (s=buffer; s<p; ++s) {
- if (*s == '\t') {
- puts (tab_seq+((*colp) & 07));
- *colp += 8 - ((*colp) & 07);
- } else {
- ++(*colp);
- putc (*s);
- }
- }
- } else {
- puts (erase_seq);
- (*colp)--;
- }
- (*np)--;
- return (p);
-}
-
-/****************************************************************************/
-
-int parse_line (char *line, char *argv[])
-{
- int nargs = 0;
-
- debug_parser("parse_line: \"%s\"\n", line);
- while (nargs < CONFIG_SYS_MAXARGS) {
-
- /* skip any white space */
- while (isblank(*line))
- ++line;
-
- if (*line == '\0') { /* end of line, no more args */
- argv[nargs] = NULL;
- debug_parser("parse_line: nargs=%d\n", nargs);
- return nargs;
- }
-
- argv[nargs++] = line; /* begin of argument string */
-
- /* find end of string */
- while (*line && !isblank(*line))
- ++line;
-
- if (*line == '\0') { /* end of line, no more args */
- argv[nargs] = NULL;
- debug_parser("parse_line: nargs=%d\n", nargs);
- return nargs;
- }
-
- *line++ = '\0'; /* terminate current arg */
- }
-
- printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS);
-
- debug_parser("parse_line: nargs=%d\n", nargs);
- return (nargs);
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_SYS_HUSH_PARSER
-static void process_macros (const char *input, char *output)
-{
- char c, prev;
- const char *varname_start = NULL;
- int inputcnt = strlen (input);
- int outputcnt = CONFIG_SYS_CBSIZE;
- int state = 0; /* 0 = waiting for '$' */
-
- /* 1 = waiting for '(' or '{' */
- /* 2 = waiting for ')' or '}' */
- /* 3 = waiting for ''' */
- char *output_start = output;
-
- debug_parser("[PROCESS_MACROS] INPUT len %zd: \"%s\"\n", strlen(input),
- input);
-
- prev = '\0'; /* previous character */
-
- while (inputcnt && outputcnt) {
- c = *input++;
- inputcnt--;
-
- if (state != 3) {
- /* remove one level of escape characters */
- if ((c == '\\') && (prev != '\\')) {
- if (inputcnt-- == 0)
- break;
- prev = c;
- c = *input++;
- }
- }
-
- switch (state) {
- case 0: /* Waiting for (unescaped) $ */
- if ((c == '\'') && (prev != '\\')) {
- state = 3;
- break;
- }
- if ((c == '$') && (prev != '\\')) {
- state++;
- } else {
- *(output++) = c;
- outputcnt--;
- }
- break;
- case 1: /* Waiting for ( */
- if (c == '(' || c == '{') {
- state++;
- varname_start = input;
- } else {
- state = 0;
- *(output++) = '$';
- outputcnt--;
-
- if (outputcnt) {
- *(output++) = c;
- outputcnt--;
- }
- }
- break;
- case 2: /* Waiting for ) */
- if (c == ')' || c == '}') {
- int i;
- char envname[CONFIG_SYS_CBSIZE], *envval;
- int envcnt = input - varname_start - 1; /* Varname # of chars */
-
- /* Get the varname */
- for (i = 0; i < envcnt; i++) {
- envname[i] = varname_start[i];
- }
- envname[i] = 0;
-
- /* Get its value */
- envval = getenv (envname);
-
- /* Copy into the line if it exists */
- if (envval != NULL)
- while ((*envval) && outputcnt) {
- *(output++) = *(envval++);
- outputcnt--;
- }
- /* Look for another '$' */
- state = 0;
- }
- break;
- case 3: /* Waiting for ' */
- if ((c == '\'') && (prev != '\\')) {
- state = 0;
- } else {
- *(output++) = c;
- outputcnt--;
- }
- break;
- }
- prev = c;
- }
-
- if (outputcnt)
- *output = 0;
- else
- *(output - 1) = 0;
-
- debug_parser("[PROCESS_MACROS] OUTPUT len %zd: \"%s\"\n",
- strlen(output_start), output_start);
-}
-
-/****************************************************************************
- * returns:
- * 1 - command executed, repeatable
- * 0 - command executed but not repeatable, interrupted commands are
- * always considered not repeatable
- * -1 - not executed (unrecognized, bootd recursion or too many args)
- * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is
- * considered unrecognized)
- *
- * WARNING:
- *
- * We must create a temporary copy of the command since the command we get
- * may be the result from getenv(), which returns a pointer directly to
- * the environment data, which may change magicly when the command we run
- * creates or modifies environment variables (like "bootp" does).
- */
-static int builtin_run_command(const char *cmd, int flag)
-{
- char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */
- char *token; /* start of token in cmdbuf */
- char *sep; /* end of token (separator) in cmdbuf */
- char finaltoken[CONFIG_SYS_CBSIZE];
- char *str = cmdbuf;
- char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
- int argc, inquotes;
- int repeatable = 1;
- int rc = 0;
-
- debug_parser("[RUN_COMMAND] cmd[%p]=\"", cmd);
- if (DEBUG_PARSER) {
- /* use puts - string may be loooong */
- puts(cmd ? cmd : "NULL");
- puts("\"\n");
- }
- clear_ctrlc(); /* forget any previous Control C */
-
- if (!cmd || !*cmd) {
- return -1; /* empty command */
- }
-
- if (strlen(cmd) >= CONFIG_SYS_CBSIZE) {
- puts ("## Command too long!\n");
- return -1;
- }
-
- strcpy (cmdbuf, cmd);
-
- /* Process separators and check for invalid
- * repeatable commands
- */
-
- debug_parser("[PROCESS_SEPARATORS] %s\n", cmd);
- while (*str) {
-
- /*
- * Find separator, or string end
- * Allow simple escape of ';' by writing "\;"
- */
- for (inquotes = 0, sep = str; *sep; sep++) {
- if ((*sep=='\'') &&
- (*(sep-1) != '\\'))
- inquotes=!inquotes;
-
- if (!inquotes &&
- (*sep == ';') && /* separator */
- ( sep != str) && /* past string start */
- (*(sep-1) != '\\')) /* and NOT escaped */
- break;
- }
-
- /*
- * Limit the token to data between separators
- */
- token = str;
- if (*sep) {
- str = sep + 1; /* start of command for next pass */
- *sep = '\0';
- }
- else
- str = sep; /* no more commands for next pass */
- debug_parser("token: \"%s\"\n", token);
-
- /* find macros in this token and replace them */
- process_macros (token, finaltoken);
-
- /* Extract arguments */
- if ((argc = parse_line (finaltoken, argv)) == 0) {
- rc = -1; /* no command at all */
- continue;
- }
-
- if (cmd_process(flag, argc, argv, &repeatable, NULL) != CMD_RET_SUCCESS)
- rc = -1;
-
- /* Did the user stop this? */
- if (had_ctrlc ())
- return -1; /* if stopped then not repeatable */
- }
-
- return rc ? rc : repeatable;
-}
-#endif
-
-/*
- * 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
- /*
- * builtin_run_command can return 0 or 1 for success, so clean up
- * its result.
- */
- if (builtin_run_command(cmd, flag) != 1)
- return 1;
-
- return 0;
-#else
- return parse_string_outer(cmd,
- FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
-#endif
-}
-
-#ifndef CONFIG_SYS_HUSH_PARSER
-/**
- * Execute a list of command separated by ; or \n using the built-in parser.
- *
- * This function cannot take a const char * for the command, since if it
- * finds newlines in the string, it replaces them with \0.
- *
- * @param cmd String containing list of commands
- * @param flag Execution flags (CMD_FLAG_...)
- * @return 0 on success, or != 0 on error.
- */
-static int builtin_run_command_list(char *cmd, int flag)
+/* We come here after U-Boot is initialised and ready to process commands */
+void main_loop(void)
{
- char *line, *next;
- int rcode = 0;
+ const char *s;
- /*
- * Break into individual lines, and execute each line; terminate on
- * error.
- */
- line = next = cmd;
- while (*next) {
- if (*next == '\n') {
- *next = '\0';
- /* run only non-empty commands */
- if (*line) {
- debug("** exec: \"%s\"\n", line);
- if (builtin_run_command(line, 0) < 0) {
- rcode = 1;
- break;
- }
- }
- line = next + 1;
- }
- ++next;
- }
- if (rcode == 0 && *line)
- rcode = (builtin_run_command(line, 0) >= 0);
+ bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
- return rcode;
-}
+#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
-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 = builtin_run_command_list(buff, flag);
- if (need_buff)
- free(buff);
-#endif
-
- return rcode;
-}
+ modem_init();
+#ifdef CONFIG_VERSION_VARIABLE
+ setenv("ver", version_string); /* set version variable */
+#endif /* CONFIG_VERSION_VARIABLE */
-/****************************************************************************/
+ cli_init();
-#if defined(CONFIG_CMD_RUN)
-int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- int i;
+ run_preboot_environment_command();
- if (argc < 2)
- return CMD_RET_USAGE;
+#if defined(CONFIG_UPDATE_TFTP)
+ update_tftp(0UL);
+#endif /* CONFIG_UPDATE_TFTP */
- for (i=1; i<argc; ++i) {
- char *arg;
+ s = bootdelay_process();
+ if (cli_process_fdt(&s))
+ cli_secure_boot_cmd(s);
- if ((arg = getenv (argv[i])) == NULL) {
- printf ("## Error: \"%s\" not defined\n", argv[i]);
- return 1;
- }
+ autoboot_command(s);
- if (run_command(arg, flag) != 0)
- return 1;
- }
- return 0;
+ cli_loop();
}
-#endif
projects / karo-tx-uboot.git / blobdiff