Bluetooth: Add local Extended Inquiry Response (EIR) support

This patch adds automated creation of the local EIR data based on what
16-bit UUIDs are registered and what the device name is. This should
cover the majority use cases, however things like 32/128-bit UUIDs, TX
power and Device ID will need to be added later to be on par with what
bluetoothd is capable of doing (without the Management interface).

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b989a8c..6846ec0 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -614,6 +614,14 @@
 
 #define HCI_OP_WRITE_INQUIRY_MODE	0x0c45
 
+#define HCI_MAX_EIR_LENGTH		240
+
+#define HCI_OP_WRITE_EIR		0x0c52
+struct hci_cp_write_eir {
+	uint8_t		fec;
+	uint8_t		data[HCI_MAX_EIR_LENGTH];
+} __packed;
+
 #define HCI_OP_READ_SSP_MODE		0x0c55
 struct hci_rp_read_ssp_mode {
 	__u8     status;