orinoco: Use extended Agere scans available on 9.x series firmwares

This provides more information than the standard Agere scan, including
the WPA IE.
Signed-off-by: David Kilroy <kilroyd@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/hermes.h

@@ -303,6 +303,40 @@ union hermes_scan_info {
 	struct symbol_scan_apinfo	s;
 };
 
+/* Extended scan struct for HERMES_INQ_CHANNELINFO.
+ * wl_lkm calls this an ACS scan (Automatic Channel Select).
+ * Keep out of union hermes_scan_info because it is much bigger than
+ * the older scan structures. */
+struct agere_ext_scan_info {
+	__le16	reserved0;
+
+	u8	noise;
+	u8	level;
+	u8	rx_flow;
+	u8	rate;
+	__le16	reserved1[2];
+
+	__le16	frame_control;
+	__le16	dur_id;
+	u8	addr1[ETH_ALEN];
+	u8	addr2[ETH_ALEN];
+	u8	bssid[ETH_ALEN];
+	__le16	sequence;
+	u8	addr4[ETH_ALEN];
+
+	__le16	data_length;
+
+	/* Next 3 fields do not get filled in. */
+	u8	daddr[ETH_ALEN];
+	u8	saddr[ETH_ALEN];
+	__le16	len_type;
+
+	__le64	timestamp;
+	__le16	beacon_interval;
+	__le16	capabilities;
+	u8	data[316];
+} __attribute__ ((packed));
+
 #define HERMES_LINKSTATUS_NOT_CONNECTED   (0x0000)  
 #define HERMES_LINKSTATUS_CONNECTED       (0x0001)
 #define HERMES_LINKSTATUS_DISCONNECTED    (0x0002)

drivers/net/wireless/hermes_rid.h

@@ -85,6 +85,7 @@
 #define HERMES_RID_CNFSCANSSID_AGERE		0xFCB2
 #define HERMES_RID_CNFBASICRATES		0xFCB3
 #define HERMES_RID_CNFSUPPORTEDRATES		0xFCB4
+#define HERMES_RID_CNFSCANCHANNELS2GHZ		0xFCC2
 #define HERMES_RID_CNFTICKTIME			0xFCE0
 #define HERMES_RID_CNFSCANREQUEST		0xFCE1
 #define HERMES_RID_CNFJOINREQUEST		0xFCE2

drivers/net/wireless/orinoco.h

@@ -42,6 +42,12 @@ struct bss_element {
 	struct list_head list;
 };
 
+struct xbss_element {
+	struct agere_ext_scan_info bss;
+	unsigned long last_scanned;
+	struct list_head list;
+};
+
 struct orinoco_private {
 	void *card;	/* Pointer to card dependent structure */
 	struct device *dev;
@@ -86,6 +92,7 @@ struct orinoco_private {
 	unsigned int has_sensitivity:1;
 	unsigned int has_hostscan:1;
 	unsigned int has_alt_txcntl:1;
+	unsigned int has_ext_scan:1;
 	unsigned int do_fw_download:1;
 	unsigned int broken_disableport:1;
 	unsigned int broken_monitor:1;
@@ -117,7 +124,7 @@ struct orinoco_private {
 	/* Scanning support */
 	struct list_head bss_list;
 	struct list_head bss_free_list;
-	struct bss_element *bss_data;
+	void *bss_xbss_data;
 
 	int	scan_inprogress;	/* Scan pending... */
 	u32	scan_mode;		/* Type of scan done */