YABEL: Common API to register interrupt handlers

Provide (mostly) the same API for registering
interrupt handlers as with x86emu.

Change-Id: I1364b08d9043039550786a1758508ae088813aa3
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1558
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/devices/oprom/yabel/biosemu.c

@@ -44,6 +44,12 @@ static X86EMU_pioFuncs my_pio_funcs = {
 /* interrupt function override array (see biosemu.h) */
 yabel_handleIntFunc yabel_intFuncArray[256];
 
+void
+mainboard_interrupt_handlers(int interrupt, yabel_handleIntFunc func)
+{
+	yabel_intFuncArray[interrupt] = func;
+}
+
 /* main entry into YABEL biosemu, arguments are:
  * *biosmem = pointer to virtual memory
  * biosmem_size = size of the virtual memory

src/devices/oprom/yabel/biosemu.h

@@ -45,6 +45,7 @@
  * the function pointer is NULL */
 typedef int (* yabel_handleIntFunc)(void);
 extern yabel_handleIntFunc yabel_intFuncArray[256];
+void mainboard_interrupt_handlers(int, yabel_handleIntFunc);
 
 struct device;