void main_loop(void){
#ifndef CFG_HUSH_PARSER
static char lastcommand[CFG_CBSIZE] = { 0, };
int len;
int rc = 1;
int flag;
#endif
int counter = 0;
int stage=0;
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
char *s;
int bootdelay;
#endif /* defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) */
#ifdef CFG_HUSH_PARSER
u_boot_hush_start();
#endif
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
// get boot delay (seconds)
s = getenv("bootdelay");
bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
// get boot command
s = getenv("bootcmd");
#if !defined(CONFIG_BOOTCOMMAND)
#error "CONFIG_BOOTCOMMAND not defined!"
#endif
if(!s){
setenv("bootcmd", CONFIG_BOOTCOMMAND);
}
s = getenv("bootcmd");
// are we going to run web failsafe mode, U-Boot console, U-Boot netconsole or just boot command?
if(reset_button_status()){
#ifdef CONFIG_SILENT_CONSOLE
if(gd->flags & GD_FLG_SILENT){
/* Restore serial console */
console_assign(stdout, "serial");
console_assign(stderr, "serial");
}
/* enable normal console output */
gd->flags &= ~(GD_FLG_SILENT);
#endif
all_led_off();
// wait 0,5s
// milisecdelay(500);
printf("Press reset button for at least:\n"
"- %d sec. to run upgrade from USB flash\n"
"- %d sec. to run U-Boot console\n"
"- %d sec. to run HTTP server\n"
"- %d sec. to run netconsole\n\n",
CONFIG_DELAY_TO_AUTORUN_USB,
CONFIG_DELAY_TO_AUTORUN_CONSOLE,
CONFIG_DELAY_TO_AUTORUN_HTTPD,
CONFIG_DELAY_TO_AUTORUN_NETCONSOLE);
printf("Reset button is pressed for: %2d ", counter);
while(reset_button_status()){
blink_sys_led(stage); // 1 second!
if(!reset_button_status()){
break;
}
counter++;
if(counter >= CONFIG_DELAY_TO_AUTORUN_USB)
{
if(counter >= CONFIG_DELAY_TO_AUTORUN_CONSOLE)
{
if(counter >= CONFIG_DELAY_TO_AUTORUN_HTTPD)
{
if(counter >= CONFIG_DELAY_TO_AUTORUN_NETCONSOLE)
{
stage=4;
}
else
{
stage=3;
}
}
else
{
stage=2;
}
}
else
{
stage=1;
}
}
// how long the button is pressed?
printf("\b\b\b%2d ", counter);
if(counter >= CONFIG_MAX_BUTTON_PRESSING){
stage=0; // normal boot
break;
}
}
all_led_off();
if(counter > 0){
// run web failsafe mode
if(stage == 1){
printf("\n\nButton was pressed for %d sec...\nStarting upgrage from USB flash...\n\n", counter);
bootdelay = -1;
usb_upgrade();
} else if(stage == 2){
printf("\n\nButton was pressed for %d sec...\nStarting U-Boot console...\n\n", counter);
bootdelay = -1;
} else if(stage == 3){
printf("\n\nButton was pressed for %d sec...\nHTTP server is starting for firmware update...\n\n", counter);
NetLoopHttpd();
bootdelay = -1;
} else if(stage == 4){
printf("\n\nButton was pressed for %d sec...\nStarting U-Boot netconsole...\n\n", counter);
bootdelay = -1;
run_command("startnc", 0);
} else {
printf("\n\n## Error: button wasn't pressed long enough!\nContinuing normal boot...\n\n");
}
} else {
printf("\n\n## Error: button wasn't pressed long enough!\nContinuing normal boot...\n\n");
}
}
if(bootdelay >= 0 && s && !abortboot(bootdelay)){
try_runonce(1);
try_autorun();
try_runonce(2);
// try to boot
#ifndef CFG_HUSH_PARSER
run_command(s, 0);
#else
parse_string_outer(s, FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
#endif
// something goes wrong!
printf("\n## Error: failed to execute 'bootcmd'!\nHTTP server is starting for firmware update...\n\n");
NetLoopHttpd();
}
#endif /* CONFIG_BOOTDELAY */
/*
* Main Loop for Monitor Command Processing
*/
#ifdef CFG_HUSH_PARSER
parse_file_outer();
/* This point is never reached */
for (;;);
#else
for(;;){
len = readline(CFG_PROMPT);
flag = 0; /* assume no special flags for now */
if(len > 0){
strcpy(lastcommand, console_buffer);
} else if(len == 0){
flag |= CMD_FLAG_REPEAT;
}
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 /* CFG_HUSH_PARSER */
}
static __inline__ int abortboot(int bootdelay){
char stopc;
int abort = 0;
#ifdef CONFIG_SILENT_CONSOLE
if(gd->flags & GD_FLG_SILENT){
/* Restore serial console */
console_assign(stdout, "serial");
console_assign(stderr, "serial");
}
#endif
if(bootdelay > 0){
#ifdef CONFIG_MENUPROMPT
printf(CONFIG_MENUPROMPT, bootdelay);
#else
printf("Hit any key to stop autoboot: %d ", bootdelay);
#endif
while((bootdelay > 0) && (!abort)){
int i;
--bootdelay;
/* delay 100 * 10ms */
for(i = 0; !abort && i < 100; ++i){
/* we got a key press */
if(tstc()){
stopc = getc();
#ifdef CONFIG_AUTOBOOT_STOP_CHAR
if (stopc == CONFIG_AUTOBOOT_STOP_CHAR) {
#else
if (stopc != 0) {
#endif
abort = 1;
bootdelay = 0;
break;
}
}
udelay(10000);
}
printf("\b\b%d ", bootdelay);
}
printf("\n\n");
}
#ifdef CONFIG_SILENT_CONSOLE
if(abort){
/* permanently enable normal console output */
gd->flags &= ~(GD_FLG_SILENT);
} else if(gd->flags & GD_FLG_SILENT){
/* Restore silent console */
console_assign(stdout, "nulldev");
console_assign(stderr, "nulldev");
}
#endif
return(abort);
}
#endif /* CONFIG_BOOTDELAY >= 0 */
/****************************************************************************/
void main_loop(void){
#ifndef CFG_HUSH_PARSER
static char lastcommand[CFG_CBSIZE] = { 0, };
int len;
int rc = 1;
int flag;
#endif
int counter = 0;
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
char *s;
int bootdelay;
#endif /* defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) */
#ifdef CFG_HUSH_PARSER
u_boot_hush_start();
#endif
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
// get boot delay (seconds)
s = getenv("bootdelay");
bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
// get boot command
s = getenv("bootcmd");
#if !defined(CONFIG_BOOTCOMMAND)
#error "CONFIG_BOOTCOMMAND not defined!"
#endif
if(!s){
setenv("bootcmd", CONFIG_BOOTCOMMAND);
}
s = getenv("bootcmd");
// are we going to run web failsafe mode, U-Boot console, U-Boot netconsole or just boot command?
if(reset_button_status()){
#ifdef CONFIG_SILENT_CONSOLE
if(gd->flags & GD_FLG_SILENT){
/* Restore serial console */
console_assign(stdout, "serial");
console_assign(stderr, "serial");
}
/* enable normal console output */
gd->flags &= ~(GD_FLG_SILENT);
#endif
// wait 0,5s
milisecdelay(500);
printf("Press reset button for at least:\n- %d sec. to run web failsafe mode\n- %d sec. to run U-Boot console\n- %d sec. to run U-Boot netconsole\n\n",
CONFIG_DELAY_TO_AUTORUN_HTTPD,
CONFIG_DELAY_TO_AUTORUN_CONSOLE,
CONFIG_DELAY_TO_AUTORUN_NETCONSOLE);
printf("Reset button is pressed for: %2d ", counter);
while(reset_button_status()){
// LED ON and wait 0,15s
all_led_on();
milisecdelay(150);
// LED OFF and wait 0,85s
all_led_off();
milisecdelay(850);
counter++;
// how long the button is pressed?
printf("\b\b\b%2d ", counter);
if(!reset_button_status()){
break;
}
if(counter >= CONFIG_MAX_BUTTON_PRESSING){
break;
}
}
all_led_off();
if(counter > 0){
// run web failsafe mode
if(counter >= CONFIG_DELAY_TO_AUTORUN_HTTPD && counter < CONFIG_DELAY_TO_AUTORUN_CONSOLE){
printf("\n\nButton was pressed for %d sec...\nHTTP server is starting for firmware update...\n\n", counter);
NetLoopHttpd();
bootdelay = -1;
} else if(counter >= CONFIG_DELAY_TO_AUTORUN_CONSOLE && counter < CONFIG_DELAY_TO_AUTORUN_NETCONSOLE){
printf("\n\nButton was pressed for %d sec...\nStarting U-Boot console...\n\n", counter);
bootdelay = -1;
} else if(counter >= CONFIG_DELAY_TO_AUTORUN_NETCONSOLE){
printf("\n\nButton was pressed for %d sec...\nStarting U-Boot netconsole...\n\n", counter);
bootdelay = -1;
run_command("startnc", 0);
} else {
printf("\n\n## Error: button wasn't pressed long enough!\nContinuing normal boot...\n\n");
}
} else {
printf("\n\n## Error: button wasn't pressed long enough!\nContinuing normal boot...\n\n");
}
}
if(bootdelay >= 0 && s && !abortboot(bootdelay)){
// try to boot
#ifndef CFG_HUSH_PARSER
run_command(s, 0);
#else
parse_string_outer(s, FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
#endif
// something goes wrong!
printf("\n## Error: failed to execute 'bootcmd'!\nHTTP server is starting for firmware update...\n\n");
NetLoopHttpd();
}
#endif /* CONFIG_BOOTDELAY */
/*
* Main Loop for Monitor Command Processing
*/
#ifdef CFG_HUSH_PARSER
parse_file_outer();
/* This point is never reached */
for (;;);
#else
for(;;){
len = readline(CFG_PROMPT);
flag = 0; /* assume no special flags for now */
if(len > 0){
strcpy(lastcommand, console_buffer);
} else if(len == 0){
flag |= CMD_FLAG_REPEAT;
}
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 /* CFG_HUSH_PARSER */
}
/****************************************************************************/
/*
* 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){
char *p = console_buffer;
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(;;){
c = getc();
/*
* Special character handling
*/
switch(c){
case '\r': /* Enter */
case '\n':
*p = '\0';
puts("\r\n");
return(p - console_buffer);
case '\0': /* nul */
continue;
case 0x03: /* ^C - break */
console_buffer[0] = '\0'; /* discard input */
return(-1);
case 0x15: /* ^U - erase line */
while(col > plen){
puts(erase_seq);
--col;
}
p = console_buffer;
n = 0;
continue;
case 0x17: /* ^W - erase word */
p = delete_char(console_buffer, p, &col, &n, plen);
while((n > 0) && (*p != ' ')){
p = delete_char(console_buffer, p, &col, &n, plen);
}
continue;
case 0x08: /* ^H - backspace */
case 0x7F: /* DEL - backspace */
p = delete_char(console_buffer, p, &col, &n, plen);
continue;
default:
/*
* Must be a normal character then
*/
if(n < CFG_CBSIZE - 2){
if(c == '\t'){ /* expand TABs */
puts(tab_seq + (col & 07));
col += 8 - (col & 07);
} else {
++col; /* echo input */
putc(c);
}
*p++ = c;
++n;
} else { /* Buffer full */
putc('\a');
}
}
}
}
