- Add a new pic method pic_config_intr() to set the trigger mode and

  polarity for a specified IRQ.  The intr_config_intr() function wraps
  this pic method hiding the IRQ to interrupt source lookup.
- Add a config_intr() method to the atpic(4) driver that reconfigures
  the interrupt using the ELCR if possible and returns an error otherwise.
- Add a config_intr() method to the apic(4) driver that just logs any
  requests that would change the existing programming under bootverbose.
  Currently, the only changes the apic(4) driver receives are due to bugs
  in the acpi(4) driver and its handling of link devices, hence the reason
  for such requests currently being ignored.
- Have the nexus(4) driver on i386 implement the bus_config_intr() function
  by calling intr_config_intr().

1 files changed, 4 insertions, 0 deletions

diff --git a/sys/i386/include/intr_machdep.h b/sys/i386/include/intr_machdep.h
index 6794751..d8256c9 100644
--- a/sys/i386/include/intr_machdep.h
+++ b/sys/i386/include/intr_machdep.h
@@ -57,6 +57,8 @@ struct pic {
 	int (*pic_source_pending)(struct intsrc *);
 	void (*pic_suspend)(struct intsrc *);
 	void (*pic_resume)(struct intsrc *);
+	int (*pic_config_intr)(struct intsrc *, enum intr_trigger,
+	    enum intr_polarity);
 };
 
 /*
@@ -84,6 +86,8 @@ void	elcr_resume(void);
 void	elcr_write_trigger(u_int irq, enum intr_trigger trigger);
 int	intr_add_handler(const char *name, int vector, driver_intr_t handler,
     void *arg, enum intr_type flags, void **cookiep);
+int	intr_config_intr(int vector, enum intr_trigger trig,
+    enum intr_polarity pol);
 void	intr_execute_handlers(struct intsrc *isrc, struct intrframe *iframe);
 struct intsrc *intr_lookup_source(int vector);
 int	intr_register_source(struct intsrc *isrc);