wifi: brcmfmac: Add a new bus op for D2H mailbox message handling

Newer firmware versions use the common ring for sending mailbox messages
between the dongle and host, instead of the hardware mailboxes. This
needs the protocol driver to call back into the bus driver, so add a
callback for this to bus.h.

Signed-off-by: Hector Martin <marcan@marcan.st>

Author: marcan

drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h

@@ -107,6 +107,7 @@ struct brcmf_bus_ops {
 	void (*debugfs_create)(struct device *dev);
 	int (*reset)(struct device *dev);
 	void (*remove)(struct device *dev);
+	void (*d2h_mb_rx)(struct device *dev, u32 data);
 };
 
 
@@ -286,6 +287,15 @@ static inline void brcmf_bus_remove(struct brcmf_bus *bus)
 	bus->ops->remove(bus->dev);
 }
 
+static inline
+void brcmf_bus_d2h_mb_rx(struct brcmf_bus *bus, u32 data)
+{
+	if (!bus->ops->d2h_mb_rx)
+		return;
+
+	return bus->ops->d2h_mb_rx(bus->dev, data);
+}
+
 /*
  * interface functions from common layer
  */