ath9k: move PCI code into separate file

Now that we have converted all bus specific routines to replaceable, we
can move the PCI specific codes into a separate file.

Changes-licensed-under: ISC

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/Makefile

@@ -11,6 +11,7 @@ ath9k-y +=	hw.o \
 		xmit.o \
 		rc.o
 
+ath9k-$(CONFIG_PCI) += pci.o
 ath9k-$(CONFIG_ATH9K_DEBUG) += debug.o
 
 obj-$(CONFIG_ATH9K) += ath9k.o

drivers/net/wireless/ath9k/core.h

@@ -18,7 +18,7 @@
 #define CORE_H
 
 #include <linux/etherdevice.h>
-#include <linux/pci.h>
+#include <linux/device.h>
 #include <net/mac80211.h>
 #include <linux/leds.h>
 #include <linux/rfkill.h>
@@ -767,4 +767,21 @@ static inline void ath_bus_cleanup(struct ath_softc *sc)
 	sc->bus_ops->cleanup(sc);
 }
 
+extern struct ieee80211_ops ath9k_ops;
+
+irqreturn_t ath_isr(int irq, void *dev);
+void ath_cleanup(struct ath_softc *sc);
+int ath_attach(u16 devid, struct ath_softc *sc);
+void ath_detach(struct ath_softc *sc);
+const char *ath_mac_bb_name(u32 mac_bb_version);
+const char *ath_rf_name(u16 rf_version);
+
+#ifdef CONFIG_PCI
+int ath_pci_init(void);
+void ath_pci_exit(void);
+#else
+static inline int ath_pci_init(void) { return 0; };
+static inline void ath_pci_exit(void) {};
+#endif
+
 #endif /* CORE_H */