/*------------------------------------------------------------------------
* panic - display a message and stop all processing
*------------------------------------------------------------------------
*/
void panic (
char *msg /* message to display */
)
{
intmask mask; /* saved interrupt mask */
mask = disable();
kprintf("\n\n\rpanic: %s\n\n\r", msg);
gpioLEDOff(GPIO_LED_CISCOWHT); /* turn off LED "run" light */
halt(); /* halt the processor */
}
/*------------------------------------------------------------------------
* xsh_led - shell command to turn LEDs on or off
*------------------------------------------------------------------------
*/
shellcmd xsh_led(int nargs, char *args[])
{
uint32 led; /* specific LED to control */
/* For argument '--help', emit help about the 'led' command */
if (nargs == 2 && strncmp(args[1], "--help", 7) == 0) {
printf("Use: %s LED_name state\n\n", args[0]);
printf("Description:\n");
printf("\tTurns a front-panel LED on or off\n");
printf("Options:\n");
printf("\tLED_name:\tdmz, wlan, power, ciscow, ciscoo\n");
printf("\tState:\t\ton, off\n");
printf("\t--help\t display this help and exit\n");
return 0;
}
/* Check for valid number of arguments */
if (nargs != 3) {
fprintf(stderr, "%s: error in arguments\n", args[0]);
fprintf(stderr, "Try '%s --help' for more information\n",
args[0]);
return 1;
}
led = 0;
/* cfind led to change */
if (strncmp(args[1], "dmz", 3) == 0) {
led = GPIO_LED_DMZ;
} else if (strncmp(args[1], "wlan", 4) == 0) {
led = GPIO_LED_WLAN;
} else if (strncmp(args[1], "power", 5) == 0) {
led = GPIO1;
} else if (strncmp(args[1], "ciscow", 6) == 0) {
led = GPIO_LED_CISCOWHT;
} else if (strncmp(args[1], "ciscoo", 6) == 0) {
led = GPIO_LED_CISCOONG;
} else {
fprintf(stderr, "%s: LED name %s is invalid\n",
args[0], args[1]);
fprintf(stderr, "Try '%s --help' for more information\n",
args[0]);
return 1;
}
/* Change led state */
if (strncmp(args[2], "on", 2) == 0) {
gpioLEDOn(led);
} else if (strncmp(args[2], "off", 3) == 0) {
gpioLEDOff(led);
} else {
fprintf(stderr, "%s: invalid state\n", args[0]);
fprintf(stderr, "Try '%s --help' for more information\n",
args[0]);
}
return 0;
}
