Move just a bit more of the interrupt code to the glue code. It does an and with

the enabled interrupts to check if there's anything of interest. This obviously
couldn't really work when clearing the enabled interrupts in the glue code.
This gets broadcom43xx working for me, tested with a Linksys WMP54GS-EU (PCI).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35060 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/drivers/network/wlan/broadcom43xx/dev/bwi/if_bwi.c

@@ -1581,9 +1581,6 @@ bwi_intr(void *xsc)
 		BWI_UNLOCK(sc);
 		return;
 	}
-#else
-	intr_status = atomic_get((int32 *)&sc->sc_intr_status);
-#endif
 
 	DPRINTF(sc, BWI_DBG_INTR, "intr status 0x%08x\n", intr_status);
 
@@ -1592,6 +1589,9 @@ bwi_intr(void *xsc)
 		BWI_UNLOCK(sc);
 		return;
 	}
+#else
+	intr_status = atomic_get((int32 *)&sc->sc_intr_status);
+#endif
 
 	KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC,
 	    ("current regwin type %d", sc->sc_cur_regwin->rw_type));

src/add-ons/kernel/drivers/network/wlan/broadcom43xx/glue.c

@@ -44,6 +44,12 @@ HAIKU_CHECK_DISABLE_INTERRUPTS(device_t dev)
 		return 0;
 	}
 
+	intr_status &= CSR_READ_4(sc, BWI_MAC_INTR_MASK);
+	if (intr_status == 0) {
+		// nothing interesting
+		return 0;
+	}
+
 	atomic_set((int32*)&sc->sc_intr_status, intr_status);
 
 	CSR_CLRBITS_4(sc, BWI_MAC_INTR_MASK, BWI_ALL_INTRS);