/*
* reboot() system call.
*
* Note: this is here because it's directly related to the code above,
* not because this is where system call code should go. Other syscall
* code should probably live in the "syscall" directory.
*/
int
sys_reboot(int code)
{
switch (code) {
case RB_REBOOT:
case RB_HALT:
case RB_POWEROFF:
break;
default:
return EINVAL;
}
shutdown();
switch (code) {
case RB_HALT:
kprintf("The system is halted.\n");
mainbus_halt();
break;
case RB_REBOOT:
kprintf("Rebooting...\n");
mainbus_reboot();
break;
case RB_POWEROFF:
kprintf("The system is halted.\n");
mainbus_poweroff();
break;
}
panic("reboot operation failed\n");
return 0;
}
/*
* Reboot the system.
*/
void
mainbus_reboot(void)
{
/*
* The MIPS doesn't appear to have any on-chip reset.
* LAMEbus doesn't have a reset control, so we just
* power off instead of rebooting. This would not be
* so great in a real system, but it's fine for what
* we're doing.
*/
kprintf("Cannot reboot - powering off instead, sorry.\n");
mainbus_poweroff();
}
/*
* Called to reset the system from panic().
*
* By the time we get here, the system may well be sufficiently hosed
* as to panic recursively if we do much of anything. So just power off.
* (We'd reboot, but System/161 doesn't do that.)
*/
void
mainbus_panic(void)
{
mainbus_poweroff();
}
