b43: bus: abstract R/W operations

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/bus.h b/drivers/net/wireless/b43/bus.h
index 68bc00a..9b39002 100644
--- a/drivers/net/wireless/b43/bus.h
+++ b/drivers/net/wireless/b43/bus.h
@@ -10,6 +10,15 @@
 	union {
 		struct ssb_device *sdev;
 	};
+
+	u16 (*read16)(struct b43_bus_dev *dev, u16 offset);
+	u32 (*read32)(struct b43_bus_dev *dev, u16 offset);
+	void (*write16)(struct b43_bus_dev *dev, u16 offset, u16 value);
+	void (*write32)(struct b43_bus_dev *dev, u16 offset, u32 value);
+	void (*block_read)(struct b43_bus_dev *dev, void *buffer,
+			   size_t count, u16 offset, u8 reg_width);
+	void (*block_write)(struct b43_bus_dev *dev, const void *buffer,
+			    size_t count, u16 offset, u8 reg_width);
 };
 
 struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev);