/**
* This function is used to lock access to critical sections when lwipopt.h
* defines SYS_LIGHTWEIGHT_PROT. It disables interrupts and returns a value
* indicating the interrupt enable state when the function entered. This
* value must be passed back on the matching call to sys_arch_unprotect().
*
* @return the interrupt level when the function was entered.
*/
sys_prot_t
sys_arch_protect(void)
{
volatile sys_prot_t status;
status = (IntMasterStatusGet() & 0xFF);
IntMasterIRQDisable();
return status;
}
unsigned char IntDisable(void)
{
unsigned char status;
/* Reads the current status.*/
status = (IntMasterStatusGet() & 0xFF);
/* Disable the Interrupts.*/
IntMasterIRQDisable();
return status;
}