staging: r8712u: Add the new driver to the mainline kernel

This code is for a completely new version of the Realtek 8192 USB devices
such as the D-Link DWA-130. The Realtek code, which was originally for
Linux, Windows XP and Windows CE, has been stripped of all code not needed
for Linux. In addition, only one additional configuration variable, which
enables AP mode, remains.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Tested-by: Frederic Leroy <fredo@starox.org>

1 files changed, 208 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl871x_mlme.h b/drivers/staging/rtl8712/rtl871x_mlme.h
new file mode 100644
index 000000000000..2b35b740ab89
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl871x_mlme.h
@@ -0,0 +1,208 @@
+#ifndef __RTL871X_MLME_H_
+#define __RTL871X_MLME_H_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "wlan_bssdef.h"
+
+#define	MAX_BSS_CNT	64
+#define   MAX_JOIN_TIMEOUT	6000
+
+#define		SCANNING_TIMEOUT	4500
+
+#define	SCANQUEUE_LIFETIME 20 /* unit:sec */
+
+#define		WIFI_NULL_STATE	0x00000000
+#define	WIFI_ASOC_STATE		0x00000001	/* Under Linked state...*/
+#define		WIFI_REASOC_STATE 0x00000002
+#define	WIFI_SLEEP_STATE	0x00000004
+#define	WIFI_STATION_STATE	0x00000008
+#define	WIFI_AP_STATE		0x00000010
+#define	WIFI_ADHOC_STATE	0x00000020
+#define   WIFI_ADHOC_MASTER_STATE 0x00000040
+#define   WIFI_UNDER_LINKING	0x00000080
+#define WIFI_SITE_MONITOR	0x00000800	/* to indicate the station
+						 * is under site surveying*/
+#define	WIFI_MP_STATE		0x00010000
+#define	WIFI_MP_CTX_BACKGROUND	0x00020000	/* in cont. tx background*/
+#define	WIFI_MP_CTX_ST		0x00040000	/* in cont. tx with
+						 *  single-tone*/
+#define	WIFI_MP_CTX_BACKGROUND_PENDING	0x00080000 /* pending in cont, tx
+					* background due to out of skb*/
+#define	WIFI_MP_CTX_CCK_HW	0x00100000	/* in continous tx*/
+#define	WIFI_MP_CTX_CCK_CS	0x00200000	/* in cont, tx with carrier
+						 * suppression*/
+#define   WIFI_MP_LPBK_STATE	0x00400000
+
+#define _FW_UNDER_LINKING	WIFI_UNDER_LINKING
+#define _FW_LINKED		WIFI_ASOC_STATE
+#define _FW_UNDER_SURVEY	WIFI_SITE_MONITOR
+
+/*
+there are several "locks" in mlme_priv,
+since mlme_priv is a shared resource between many threads,
+like ISR/Call-Back functions, the OID handlers, and even timer functions.
+Each _queue has its own locks, already.
+Other items are protected by mlme_priv.lock.
+To avoid possible dead lock, any thread trying to modifiying mlme_priv
+SHALL not lock up more than one locks at a time!
+*/
+
+#define traffic_threshold	10
+#define	traffic_scan_period	500
+
+struct sitesurvey_ctrl {
+	u64	last_tx_pkts;
+	uint	last_rx_pkts;
+	sint	traffic_busy;
+	struct timer_list sitesurvey_ctrl_timer;
+};
+
+struct mlme_priv {
+
+	spinlock_t lock;
+	spinlock_t lock2;
+	sint	fw_state;	/*shall we protect this variable? */
+	u8 to_join; /*flag*/
+	u8 *nic_hdl;
+	struct list_head *pscanned;
+	struct  __queue free_bss_pool;
+	struct  __queue scanned_queue;
+	u8 *free_bss_buf;
+	unsigned long num_of_scanned;
+	struct ndis_802_11_ssid	assoc_ssid;
+	u8 assoc_bssid[6];
+	struct wlan_network cur_network;
+	struct sitesurvey_ctrl sitesurveyctrl;
+	struct timer_list assoc_timer;
+	uint assoc_by_bssid;
+	uint assoc_by_rssi;
+	struct timer_list scan_to_timer; /* driver handles scan_timeout.*/
+	struct timer_list dhcp_timer; /* set dhcp to if driver in ps mode.*/
+	struct qos_priv qospriv;
+	struct ht_priv	htpriv;
+	struct timer_list wdg_timer; /*watchdog periodic timer*/
+};
+
+static inline u8 *get_bssid(struct mlme_priv *pmlmepriv)
+{
+	return pmlmepriv->cur_network.network.MacAddress;
+}
+
+static inline u8 check_fwstate(struct mlme_priv *pmlmepriv, sint state)
+{
+	if (pmlmepriv->fw_state & state)
+		return true;
+	return false;
+}
+
+static inline sint get_fwstate(struct mlme_priv *pmlmepriv)
+{
+	return pmlmepriv->fw_state;
+}
+
+/*
+ * No Limit on the calling context,
+ * therefore set it to be the critical section...
+ *
+ * ### NOTE:#### (!!!!)
+ * TAKE CARE THAT BEFORE CALLING THIS FUNC, LOCK pmlmepriv->lock
+ */
+static inline void set_fwstate(struct mlme_priv *pmlmepriv, sint state)
+{
+	pmlmepriv->fw_state |= state;
+}
+
+static inline void _clr_fwstate_(struct mlme_priv *pmlmepriv, sint state)
+{
+	pmlmepriv->fw_state &= ~state;
+}
+
+/*
+ * No Limit on the calling context,
+ * therefore set it to be the critical section...
+ */
+static inline void clr_fwstate(struct mlme_priv *pmlmepriv, sint state)
+{
+	unsigned long irqL;
+
+	spin_lock_irqsave(&pmlmepriv->lock, irqL);
+	if (check_fwstate(pmlmepriv, state) == true)
+		pmlmepriv->fw_state ^= state;
+	spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
+}
+
+static inline void up_scanned_network(struct mlme_priv *pmlmepriv)
+{
+	unsigned long irqL;
+
+	spin_lock_irqsave(&pmlmepriv->lock, irqL);
+	pmlmepriv->num_of_scanned++;
+	spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
+}
+
+static inline void down_scanned_network(struct mlme_priv *pmlmepriv)
+{
+	unsigned long irqL;
+
+	spin_lock_irqsave(&pmlmepriv->lock, irqL);
+	pmlmepriv->num_of_scanned--;
+	spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
+}
+
+static inline void set_scanned_network_val(struct mlme_priv *pmlmepriv,
+					     sint val)
+{
+	unsigned long irqL;
+
+	spin_lock_irqsave(&pmlmepriv->lock, irqL);
+	pmlmepriv->num_of_scanned = val;
+	spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
+}
+
+void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf);
+void r8712_free_network_queue(struct _adapter *adapter);
+int r8712_init_mlme_priv(struct _adapter *adapter);
+void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv);
+sint r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv);
+sint r8712_set_key(struct _adapter *adapter,
+		   struct security_priv *psecuritypriv, sint keyid);
+sint r8712_set_auth(struct _adapter *adapter,
+		    struct security_priv *psecuritypriv);
+uint r8712_get_ndis_wlan_bssid_ex_sz(struct ndis_wlan_bssid_ex *bss);
+void r8712_generate_random_ibss(u8 *pibss);
+u8 *r8712_get_capability_from_ie(u8 *ie);
+struct wlan_network *r8712_get_oldest_wlan_network(
+				struct  __queue *scanned_queue);
+void r8712_free_assoc_resources(struct _adapter *adapter);
+void r8712_ind_disconnect(struct _adapter *adapter);
+void r8712_indicate_connect(struct _adapter *adapter);
+int r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
+			  u8 *out_ie, uint in_len);
+int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie,
+			  u8 *out_ie, uint in_len, uint initial_out_len);
+void r8712_init_registrypriv_dev_network(struct _adapter *adapter);
+void r8712_update_registrypriv_dev_network(struct _adapter *adapter);
+void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter);
+void _r8712_join_timeout_handler(struct _adapter *adapter);
+void r8712_scan_timeout_handler(struct _adapter *adapter);
+void _r8712_dhcp_timeout_handler(struct _adapter *adapter);
+void _r8712_wdg_timeout_handler(struct _adapter *adapter);
+struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv);
+sint r8712_if_up(struct _adapter *padapter);
+void r8712_joinbss_reset(struct _adapter *padapter);
+unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
+				     u8 *out_ie, uint in_len, uint *pout_len);
+void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority);
+unsigned int r8712_add_ht_addt_info(struct _adapter *padapter, u8 *in_ie,
+				    u8 *out_ie, uint in_len, uint *pout_len);
+int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork);
+
+#endif /*__RTL871X_MLME_H_*/