libertas: implement SSID scanning for SIOCSIWSCAN

After my bit scan re-writing the SIOCSIWSCAN wext ioctl no longer supported
scanning for a specific SSID. However, wpa_supplicant is a possible user of
this ioctl, so here is code that add's this.

While passing, removed even more of the debugfs-based scanning. You can (and
should) the SIOCSIWSCAN to ask for scans, so there is no need for
proprietary interfaces for scanning. And, besides, the scan result couldn't
be used further, e.g. not for associating.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 67 deletions

diff --git a/drivers/net/wireless/libertas/scan.h b/drivers/net/wireless/libertas/scan.h
index 10d1196acf78..c50c8b74714b 100644
--- a/drivers/net/wireless/libertas/scan.h
+++ b/drivers/net/wireless/libertas/scan.h
@@ -12,8 +12,6 @@
 
 /**
  *  @brief Maximum number of channels that can be sent in a setuserscan ioctl
- *
- *  @sa lbs_ioctl_user_scan_cfg
  */
 #define LBS_IOCTL_USER_SCAN_CHAN_MAX  50
 
@@ -27,60 +25,6 @@
 #define LBS_SCAN_BSS_TYPE_ANY         3
 
 /**
- *  @brief IOCTL channel sub-structure sent in lbs_ioctl_user_scan_cfg
- *
- *  Multiple instances of this structure are included in the IOCTL command
- *   to configure a instance of a scan on the specific channel.
- */
-struct lbs_ioctl_user_scan_chan {
-	u8 channumber;		//!< channel Number to scan
-	u8 radiotype;		//!< Radio type: 'B/G' band = 0, 'A' band = 1
-	u8 scantype;		//!< Scan type: Active = 0, Passive = 1
-	u16 scantime;		//!< Scan duration in milliseconds; if 0 default used
-};
-
-/**
- *  @brief IOCTL input structure to configure an immediate scan cmd to firmware
- *
- *  Used in the setuserscan (LBS_SET_USER_SCAN) private ioctl.  Specifies
- *   a number of parameters to be used in general for the scan as well
- *   as a channel list (lbs_ioctl_user_scan_chan) for each scan period
- *   desired.
- *
- *  @sa lbs_set_user_scan_ioctl
- */
-struct lbs_ioctl_user_scan_cfg {
-    /**
-     *  @brief BSS type to be sent in the firmware command
-     *
-     *  Field can be used to restrict the types of networks returned in the
-     *    scan.  valid settings are:
-     *
-     *   - LBS_SCAN_BSS_TYPE_BSS  (infrastructure)
-     *   - LBS_SCAN_BSS_TYPE_IBSS (adhoc)
-     *   - LBS_SCAN_BSS_TYPE_ANY  (unrestricted, adhoc and infrastructure)
-     */
-	u8 bsstype;
-
-	/**
-	 *  @brief BSSID filter sent in the firmware command to limit the results
-	 */
-	u8 bssid[ETH_ALEN];
-
-	/* Clear existing scan results matching this BSSID */
-	u8 clear_bssid;
-
-	/**
-	 *  @brief SSID filter sent in the firmware command to limit the results
-	 */
-	char ssid[IW_ESSID_MAX_SIZE];
-	u8 ssid_len;
-
-	/* Clear existing scan results matching this SSID */
-	u8 clear_ssid;
-};
-
-/**
  *  @brief Structure used to store information for each beacon/probe response
  */
 struct bss_descriptor {
@@ -136,21 +80,12 @@ int lbs_find_best_network_ssid(struct lbs_private *priv, u8 *out_ssid,
 			u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode);
 
 int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid,
-				u8 ssid_len, u8 clear_ssid);
-
-int lbs_scan_networks(struct lbs_private *priv,
-	const struct lbs_ioctl_user_scan_cfg *puserscanin,
-                int full_scan);
-
-struct ifreq;
+				u8 ssid_len);
 
-struct iw_point;
-struct iw_param;
-struct iw_request_info;
 int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
 			 struct iw_point *dwrq, char *extra);
 int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
-			 struct iw_param *vwrq, char *extra);
+			 union iwreq_data *wrqu, char *extra);
 
 void lbs_scan_worker(struct work_struct *work);