Staging: at76_usb: update drivers/staging/at76_usb w/ mac80211 port

This updates drivers/staging/at76_usb to correspond with the latest
version previously available in wireless-testing.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/at76_usb/Kconfig

@@ -1,6 +1,6 @@
 config USB_ATMEL
 	tristate "Atmel at76c503/at76c505/at76c505a USB cards"
-	depends on WLAN_80211 && USB
+	depends on MAC80211 && WLAN_80211 && USB
 	default N
 	select FW_LOADER
 	---help---

drivers/staging/at76_usb/at76_usb.h

@@ -34,23 +34,6 @@ enum board_type {
 	BOARD_505AMX = 8
 };
 
-/* our private ioctl's */
-/* preamble length (0 - long, 1 - short, 2 - auto) */
-#define AT76_SET_SHORT_PREAMBLE		(SIOCIWFIRSTPRIV + 0)
-#define AT76_GET_SHORT_PREAMBLE		(SIOCIWFIRSTPRIV + 1)
-/* which debug channels are enabled */
-#define AT76_SET_DEBUG			(SIOCIWFIRSTPRIV + 2)
-#define AT76_GET_DEBUG			(SIOCIWFIRSTPRIV + 3)
-/* power save mode (incl. the Atmel proprietary smart save mode) */
-#define AT76_SET_POWERSAVE_MODE		(SIOCIWFIRSTPRIV + 4)
-#define AT76_GET_POWERSAVE_MODE		(SIOCIWFIRSTPRIV + 5)
-/* min and max channel times for scan */
-#define AT76_SET_SCAN_TIMES		(SIOCIWFIRSTPRIV + 6)
-#define AT76_GET_SCAN_TIMES		(SIOCIWFIRSTPRIV + 7)
-/* scan mode (0 - active, 1 - passive) */
-#define AT76_SET_SCAN_MODE		(SIOCIWFIRSTPRIV + 8)
-#define AT76_GET_SCAN_MODE		(SIOCIWFIRSTPRIV + 9)
-
 #define CMD_STATUS_IDLE				0x00
 #define CMD_STATUS_COMPLETE			0x01
 #define CMD_STATUS_UNKNOWN			0x02
@@ -82,6 +65,7 @@ enum board_type {
 #define MIB_MAC			0x03
 #define MIB_MAC_MGMT		0x05
 #define MIB_MAC_WEP		0x06
+#define MIB_MAC_ENCRYPTION	0x06
 #define MIB_PHY			0x07
 #define MIB_FW_VERSION		0x08
 #define MIB_MDOMAIN		0x09
@@ -106,6 +90,26 @@ enum board_type {
 #define AT76_PM_ON		2
 #define AT76_PM_SMART		3
 
+/* cipher values for encryption keys */
+#define CIPHER_NONE		0	/* this value is only guessed */
+#define CIPHER_WEP64		1
+#define CIPHER_TKIP		2
+#define CIPHER_CCMP		3
+#define CIPHER_CCX		4	/* for consistency sake only */
+#define CIPHER_WEP128		5
+
+/* bit flags key types for encryption keys */
+#define KEY_PAIRWISE		2
+#define KEY_TX			4
+
+#define CIPHER_KEYS		(4)
+#define CIPHER_KEY_LEN		(40)
+
+struct key_config {
+	u8 cipher;
+	u8 keylen;
+};
+
 struct hwcfg_r505 {
 	u8 cr39_values[14];
 	u8 reserved1[14];
@@ -147,6 +151,9 @@ union at76_hwcfg {
 
 #define WEP_SMALL_KEY_LEN	(40 / 8)
 #define WEP_LARGE_KEY_LEN	(104 / 8)
+#define WEP_KEYS		(4)
+
+
 
 struct at76_card_config {
 	u8 exclude_unencrypted;
@@ -161,7 +168,7 @@ struct at76_card_config {
 	u8 privacy_invoked;
 	u8 wep_default_key_id;	/* 0..3 */
 	u8 current_ssid[32];
-	u8 wep_default_key_value[4][WEP_KEY_LEN];
+	u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];
 	u8 ssid_len;
 	u8 short_preamble;
 	__le16 beacon_period;
@@ -186,7 +193,7 @@ struct at76_rx_buffer {
 	u8 link_quality;
 	u8 noise_level;
 	__le32 rx_time;
-	u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN];
+	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
 } __attribute__((packed));
 
 /* Length of Atmel-specific Tx header before 802.11 frame */
@@ -196,8 +203,11 @@ struct at76_tx_buffer {
 	__le16 wlength;
 	u8 tx_rate;
 	u8 padding;
-	u8 reserved[4];
-	u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN];
+	u8 key_id;
+	u8 cipher_type;
+	u8 cipher_length;
+	u8 reserved;
+	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
 } __attribute__((packed));
 
 /* defines for scan_type below */
@@ -244,6 +254,7 @@ struct set_mib_buffer {
 		u8 byte;
 		__le16 word;
 		u8 addr[ETH_ALEN];
+		u8 data[256];	/* we need more space for mib_mac_encryption */
 	} data;
 } __attribute__((packed));
 
@@ -317,10 +328,24 @@ struct mib_mac_wep {
 	u8 exclude_unencrypted;
 	__le32 wep_icv_error_count;
 	__le32 wep_excluded_count;
-	u8 wep_default_keyvalue[WEP_KEYS][WEP_KEY_LEN];
+	u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN];
 	u8 encryption_level;	/* 1 for 40bit, 2 for 104bit encryption */
 } __attribute__((packed));
 
+struct mib_mac_encryption {
+	u8 cipher_default_keyvalue[CIPHER_KEYS][CIPHER_KEY_LEN];
+	u8 tkip_bssid[6];
+	u8 privacy_invoked;
+	u8 cipher_default_key_id;
+	u8 cipher_default_group_key_id;
+	u8 exclude_unencrypted;
+	u8 wep_encryption_type;
+	u8 ckip_key_permutation;	/* bool */
+	__le32 wep_icv_error_count;
+	__le32 wep_excluded_count;
+	u8 key_rsc[CIPHER_KEYS][8];
+} __attribute__((packed));
+
 struct mib_phy {
 	__le32 ed_threshold;
 
@@ -364,16 +389,6 @@ struct at76_fw_header {
 	__le32 ext_fw_len;	/* external firmware image length */
 } __attribute__((packed));
 
-enum mac_state {
-	MAC_INIT,
-	MAC_SCANNING,
-	MAC_AUTH,
-	MAC_ASSOC,
-	MAC_JOINING,
-	MAC_CONNECTED,
-	MAC_OWN_IBSS
-};
-
 /* a description of a regulatory domain and the allowed channels */
 struct reg_domain {
 	u16 code;
@@ -381,47 +396,6 @@ struct reg_domain {
 	u32 channel_map;	/* if bit N is set, channel (N+1) is allowed */
 };
 
-/* how long do we keep a (I)BSS in the bss_list in jiffies
-   this should be long enough for the user to retrieve the table
-   (by iwlist ?) after the device started, because all entries from
-   other channels than the one the device locks on get removed, too */
-#define BSS_LIST_TIMEOUT	(120 * HZ)
-/* struct to store BSS info found during scan */
-#define BSS_LIST_MAX_RATE_LEN	32	/* 32 rates should be enough ... */
-
-struct bss_info {
-	struct list_head list;
-
-	u8 bssid[ETH_ALEN];	/* bssid */
-	u8 ssid[IW_ESSID_MAX_SIZE];	/* essid */
-	u8 ssid_len;		/* length of ssid above */
-	u8 channel;
-	u16 capa;		/* BSS capabilities */
-	u16 beacon_interval;	/* beacon interval, Kus (1024 microseconds) */
-	u8 rates[BSS_LIST_MAX_RATE_LEN];	/* supported rates in units of
-						   500 kbps, ORed with 0x80 for
-						   basic rates */
-	u8 rates_len;
-
-	/* quality of received beacon */
-	u8 rssi;
-	u8 link_qual;
-	u8 noise_level;
-
-	unsigned long last_rx;	/* time (jiffies) of last beacon received */
-};
-
-/* a rx data buffer to collect rx fragments */
-struct rx_data_buf {
-	u8 sender[ETH_ALEN];	/* sender address */
-	u16 seqnr;		/* sequence number */
-	u16 fragnr;		/* last fragment received */
-	unsigned long last_rx;	/* jiffies of last rx */
-	struct sk_buff *skb;	/* == NULL if entry is free */
-};
-
-#define NR_RX_DATA_BUF		8
-
 /* Data for one loaded firmware file */
 struct fwentry {
 	const char *const fwname;
@@ -438,11 +412,9 @@ struct fwentry {
 
 struct at76_priv {
 	struct usb_device *udev;	/* USB device pointer */
-	struct net_device *netdev;	/* net device pointer */
-	struct net_device_stats stats;	/* net device stats */
-	struct iw_statistics wstats;	/* wireless stats */
 
 	struct sk_buff *rx_skb;	/* skbuff for receiving data */
+	struct sk_buff *tx_skb;	/* skbuff for transmitting data */
 	void *bulk_out_buffer;	/* buffer for sending data */
 
 	struct urb *tx_urb;	/* URB for sending data */
@@ -454,26 +426,17 @@ struct at76_priv {
 	struct mutex mtx;	/* locks this structure */
 
 	/* work queues */
-	struct work_struct work_assoc_done;
-	struct work_struct work_join;
-	struct work_struct work_new_bss;
-	struct work_struct work_start_scan;
 	struct work_struct work_set_promisc;
 	struct work_struct work_submit_rx;
-	struct delayed_work dwork_restart;
-	struct delayed_work dwork_get_scan;
-	struct delayed_work dwork_beacon;
-	struct delayed_work dwork_auth;
-	struct delayed_work dwork_assoc;
+	struct delayed_work dwork_hw_scan;
 
 	struct tasklet_struct rx_tasklet;
 
 	/* the WEP stuff */
 	int wep_enabled;	/* 1 if WEP is enabled */
 	int wep_key_id;		/* key id to be used */
-	u8 wep_keys[WEP_KEYS][WEP_KEY_LEN];	/* the four WEP keys,
-						   5 or 13 bytes are used */
-	u8 wep_keys_len[WEP_KEYS];	/* the length of the above keys */
+	u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN];	/* WEP keys */
+	u8 wep_keys_len[WEP_KEYS];	/* length of WEP keys */
 
 	int channel;
 	int iw_mode;
@@ -495,44 +458,13 @@ struct at76_priv {
 	int scan_mode;		/* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
 	int scan_need_any;	/* if set, need to scan for any ESSID */
 
-	/* the list we got from scanning */
-	spinlock_t bss_list_spinlock;	/* protects bss_list operations */
-	struct list_head bss_list;	/* list of BSS we got beacons from */
-	struct timer_list bss_list_timer;	/* timer to purge old entries
-						   from bss_list */
-	struct bss_info *curr_bss;	/* current BSS */
 	u16 assoc_id;		/* current association ID, if associated */
 
-	u8 wanted_bssid[ETH_ALEN];
-	int wanted_bssid_valid;	/* != 0 if wanted_bssid is to be used */
-
-	/* some data for infrastructure mode only */
-	spinlock_t mgmt_spinlock;	/* this spinlock protects access to
-					   next_mgmt_bulk */
-
-	struct at76_tx_buffer *next_mgmt_bulk;	/* pending management msg to
-						   send via bulk out */
-	enum mac_state mac_state;
-	enum {
-		SCAN_IDLE,
-		SCAN_IN_PROGRESS,
-		SCAN_COMPLETED
-	} scan_state;
-	time_t last_scan;
-
-	int retries;		/* remaining retries in case of timeout when
-				 * sending AuthReq or AssocReq */
 	u8 pm_mode;		/* power management mode */
 	u32 pm_period;		/* power management period in microseconds */
 
 	struct reg_domain const *domain;	/* reg domain description */
 
-	/* iwspy support */
-	spinlock_t spy_spinlock;
-	struct iw_spy_data spy_data;
-
-	struct iw_public_data wireless_data;
-
 	/* These fields contain HW config provided by the device (not all of
 	 * these fields are used by all board types) */
 	u8 mac_addr[ETH_ALEN];
@@ -540,9 +472,6 @@ struct at76_priv {
 
 	struct at76_card_config card_config;
 
-	/* store rx fragments until complete */
-	struct rx_data_buf rx_data[NR_RX_DATA_BUF];
-
 	enum board_type board_type;
 	struct mib_fw_version fw_version;
 
@@ -550,58 +479,20 @@ struct at76_priv {
 	unsigned int netdev_registered:1;
 	struct set_mib_buffer mib_buf;	/* global buffer for set_mib calls */
 
-	/* beacon counting */
 	int beacon_period;	/* period of mgmt beacons, Kus */
-	int beacons_received;
-	unsigned long beacons_last_qual;	/* time we restarted counting
-						   beacons */
-};
 
-struct at76_rx_radiotap {
-	struct ieee80211_radiotap_header rt_hdr;
-	__le64 rt_tsft;
-	u8 rt_flags;
-	u8 rt_rate;
-	s8 rt_signal;
-	s8 rt_noise;
-};
-
-#define AT76_RX_RADIOTAP_PRESENT		  \
-	((1 << IEEE80211_RADIOTAP_TSFT)		| \
-	(1 << IEEE80211_RADIOTAP_FLAGS)		| \
-	(1 << IEEE80211_RADIOTAP_RATE)		| \
-	(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)	| \
-	(1 << IEEE80211_RADIOTAP_DB_ANTNOISE))
-
-#define BEACON_MAX_DATA_LENGTH	1500
-
-/* the maximum size of an AssocReq packet */
-#define ASSOCREQ_MAX_SIZE \
-  (AT76_TX_HDRLEN + sizeof(struct ieee80211_assoc_request) + \
-   1 + 1 + IW_ESSID_MAX_SIZE + 1 + 1 + 4)
-
-/* for shared secret auth, add the challenge text size */
-#define AUTH_FRAME_SIZE (AT76_TX_HDRLEN + sizeof(struct ieee80211_auth))
+	struct ieee80211_hw *hw;
+	int mac80211_registered;
 
-/* Maximal number of AuthReq retries */
-#define AUTH_RETRIES		3
-
-/* Maximal number of AssocReq retries */
-#define ASSOC_RETRIES		3
-
-/* Beacon timeout in managed mode when we are connected */
-#define BEACON_TIMEOUT		(10 * HZ)
-
-/* Timeout for authentication response */
-#define AUTH_TIMEOUT		(1 * HZ)
+	struct key_config keys[4];	/* installed key types */
+	u8 default_pairwise_key;
+	u8 default_group_key;
+};
 
-/* Timeout for association response */
-#define ASSOC_TIMEOUT		(1 * HZ)
+#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
 
-/* Polling interval when scan is running */
 #define SCAN_POLL_INTERVAL	(HZ / 4)
 
-/* Command completion timeout */
 #define CMD_COMPLETION_TIMEOUT	(5 * HZ)
 
 #define DEF_RTS_THRESHOLD	1536
@@ -611,8 +502,6 @@ struct at76_rx_radiotap {
 #define DEF_SCAN_MIN_TIME	10
 #define DEF_SCAN_MAX_TIME	120
 
-#define MAX_RTS_THRESHOLD	(MAX_FRAG_THRESHOLD + 1)
-
 /* the max padding size for tx in bytes (see calc_padding) */
 #define MAX_PADDING_SIZE	53