mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
305 lines
7.0 KiB
C
305 lines
7.0 KiB
C
/*
|
|
* (C) Copyright 2000
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <autoboot.h>
|
|
#include <bootretry.h>
|
|
#include <cli.h>
|
|
#include <fdtdec.h>
|
|
#include <menu.h>
|
|
#include <post.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define MAX_DELAY_STOP_STR 32
|
|
|
|
#ifndef DEBUG_BOOTKEYS
|
|
#define DEBUG_BOOTKEYS 0
|
|
#endif
|
|
#define debug_bootkeys(fmt, args...) \
|
|
debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
|
|
|
|
/* Stored value of bootdelay, used by autoboot_command() */
|
|
static int stored_bootdelay;
|
|
|
|
/***************************************************************************
|
|
* 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_AUTOBOOT_KEYED)
|
|
static int abortboot_keyed(int bootdelay)
|
|
{
|
|
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");
|
|
|
|
/* don't retry auto boot */
|
|
if (!delaykey[i].retry)
|
|
bootretry_dont_retry();
|
|
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;
|
|
#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
|
|
}
|
|
|
|
static void process_fdt_options(const void *blob)
|
|
{
|
|
#if defined(CONFIG_OF_CONTROL)
|
|
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 */
|
|
}
|
|
|
|
const char *bootdelay_process(void)
|
|
{
|
|
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
|
|
bootretry_init_cmd_timeout();
|
|
|
|
#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");
|
|
|
|
process_fdt_options(gd->fdt_blob);
|
|
stored_bootdelay = bootdelay;
|
|
|
|
return s;
|
|
}
|
|
|
|
void autoboot_command(const char *s)
|
|
{
|
|
debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
|
|
|
|
if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
|
|
#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
|
|
int prev = disable_ctrlc(1); /* disable Control C checking */
|
|
#endif
|
|
|
|
run_command_list(s, -1, 0);
|
|
|
|
#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
|
|
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 */
|
|
}
|