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, 622 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/wifi.h b/drivers/staging/rtl8712/wifi.h
new file mode 100644
index 0000000..86d4b98
--- /dev/null
+++ b/drivers/staging/rtl8712/wifi.h
@@ -0,0 +1,622 @@
+#ifndef _WIFI_H_
+#define _WIFI_H_
+
+#include "rtl871x_byteorder.h"
+
+#ifdef BIT
+#undef BIT
+#endif
+#define BIT(x)	(1 << (x))
+
+#define WLAN_ETHHDR_LEN		14
+#define WLAN_ETHADDR_LEN	6
+#define WLAN_IEEE_OUI_LEN	3
+#define WLAN_ADDR_LEN		6
+#define WLAN_CRC_LEN		4
+#define WLAN_BSSID_LEN		6
+#define WLAN_BSS_TS_LEN		8
+#define WLAN_HDR_A3_LEN		24
+#define WLAN_HDR_A4_LEN		30
+#define WLAN_HDR_A3_QOS_LEN	26
+#define WLAN_HDR_A4_QOS_LEN	32
+#define WLAN_SSID_MAXLEN	32
+#define WLAN_DATA_MAXLEN	2312
+
+#define WLAN_A3_PN_OFFSET	24
+#define WLAN_A4_PN_OFFSET	30
+
+#define WLAN_MIN_ETHFRM_LEN	60
+#define WLAN_MAX_ETHFRM_LEN	1514
+#define WLAN_ETHHDR_LEN		14
+
+#define P80211CAPTURE_VERSION	0x80211001
+
+enum WIFI_FRAME_TYPE {
+	WIFI_MGT_TYPE  =	(0),
+	WIFI_CTRL_TYPE =	(BIT(2)),
+	WIFI_DATA_TYPE =	(BIT(3)),
+	WIFI_QOS_DATA_TYPE	= (BIT(7)|BIT(3)),	/*!< QoS Data */
+};
+
+enum WIFI_FRAME_SUBTYPE {
+
+    /* below is for mgt frame */
+    WIFI_ASSOCREQ       = (0 | WIFI_MGT_TYPE),
+    WIFI_ASSOCRSP       = (BIT(4) | WIFI_MGT_TYPE),
+    WIFI_REASSOCREQ     = (BIT(5) | WIFI_MGT_TYPE),
+    WIFI_REASSOCRSP     = (BIT(5) | BIT(4) | WIFI_MGT_TYPE),
+    WIFI_PROBEREQ       = (BIT(6) | WIFI_MGT_TYPE),
+    WIFI_PROBERSP       = (BIT(6) | BIT(4) | WIFI_MGT_TYPE),
+    WIFI_BEACON         = (BIT(7) | WIFI_MGT_TYPE),
+    WIFI_ATIM           = (BIT(7) | BIT(4) | WIFI_MGT_TYPE),
+    WIFI_DISASSOC       = (BIT(7) | BIT(5) | WIFI_MGT_TYPE),
+    WIFI_AUTH           = (BIT(7) | BIT(5) | BIT(4) | WIFI_MGT_TYPE),
+    WIFI_DEAUTH         = (BIT(7) | BIT(6) | WIFI_MGT_TYPE),
+    WIFI_ACTION         = (BIT(7) | BIT(6) | BIT(4) | WIFI_MGT_TYPE),
+
+    /* below is for control frame */
+    WIFI_PSPOLL         = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
+    WIFI_RTS            = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
+    WIFI_CTS            = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
+    WIFI_ACK            = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
+    WIFI_CFEND          = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
+    WIFI_CFEND_CFACK    = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
+
+    /* below is for data frame */
+    WIFI_DATA           = (0 | WIFI_DATA_TYPE),
+    WIFI_DATA_CFACK     = (BIT(4) | WIFI_DATA_TYPE),
+    WIFI_DATA_CFPOLL    = (BIT(5) | WIFI_DATA_TYPE),
+    WIFI_DATA_CFACKPOLL = (BIT(5) | BIT(4) | WIFI_DATA_TYPE),
+    WIFI_DATA_NULL      = (BIT(6) | WIFI_DATA_TYPE),
+    WIFI_CF_ACK         = (BIT(6) | BIT(4) | WIFI_DATA_TYPE),
+    WIFI_CF_POLL        = (BIT(6) | BIT(5) | WIFI_DATA_TYPE),
+    WIFI_CF_ACKPOLL     = (BIT(6) | BIT(5) | BIT(4) | WIFI_DATA_TYPE),
+};
+
+enum WIFI_REASON_CODE	{
+	_RSON_RESERVED_			= 0,
+	_RSON_UNSPECIFIED_		= 1,
+	_RSON_AUTH_NO_LONGER_VALID_	= 2,
+	_RSON_DEAUTH_STA_LEAVING_	= 3,
+	_RSON_INACTIVITY_		= 4,
+	_RSON_UNABLE_HANDLE_		= 5,
+	_RSON_CLS2_			= 6,
+	_RSON_CLS3_			= 7,
+	_RSON_DISAOC_STA_LEAVING_	= 8,
+	_RSON_ASOC_NOT_AUTH_		= 9,
+
+	/* WPA reason */
+	_RSON_INVALID_IE_		= 13,
+	_RSON_MIC_FAILURE_		= 14,
+	_RSON_4WAY_HNDSHK_TIMEOUT_	= 15,
+	_RSON_GROUP_KEY_UPDATE_TIMEOUT_	= 16,
+	_RSON_DIFF_IE_			= 17,
+	_RSON_MLTCST_CIPHER_NOT_VALID_	= 18,
+	_RSON_UNICST_CIPHER_NOT_VALID_	= 19,
+	_RSON_AKMP_NOT_VALID_		= 20,
+	_RSON_UNSUPPORT_RSNE_VER_	= 21,
+	_RSON_INVALID_RSNE_CAP_		= 22,
+	_RSON_IEEE_802DOT1X_AUTH_FAIL_	= 23,
+
+	/* below are Realtek definitions */
+	_RSON_PMK_NOT_AVAILABLE_	= 24,
+};
+
+enum WIFI_STATUS_CODE {
+	_STATS_SUCCESSFUL_		= 0,
+	_STATS_FAILURE_			= 1,
+	_STATS_CAP_FAIL_		= 10,
+	_STATS_NO_ASOC_			= 11,
+	_STATS_OTHER_			= 12,
+	_STATS_NO_SUPP_ALG_		= 13,
+	_STATS_OUT_OF_AUTH_SEQ_		= 14,
+	_STATS_CHALLENGE_FAIL_		= 15,
+	_STATS_AUTH_TIMEOUT_		= 16,
+	_STATS_UNABLE_HANDLE_STA_	= 17,
+	_STATS_RATE_FAIL_		= 18,
+};
+
+enum WIFI_REG_DOMAIN {
+	DOMAIN_FCC	= 1,
+	DOMAIN_IC	= 2,
+	DOMAIN_ETSI	= 3,
+	DOMAIN_SPAIN	= 4,
+	DOMAIN_FRANCE	= 5,
+	DOMAIN_MKK	= 6,
+	DOMAIN_ISRAEL	= 7,
+	DOMAIN_MKK1	= 8,
+	DOMAIN_MKK2	= 9,
+	DOMAIN_MKK3	= 10,
+	DOMAIN_MAX
+};
+
+#define _TO_DS_		BIT(8)
+#define _FROM_DS_	BIT(9)
+#define _MORE_FRAG_	BIT(10)
+#define _RETRY_		BIT(11)
+#define _PWRMGT_	BIT(12)
+#define _MORE_DATA_	BIT(13)
+#define _PRIVACY_	BIT(14)
+#define _ORDER_		BIT(15)
+
+#define SetToDs(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_TO_DS_); \
+	} while (0)
+
+#define GetToDs(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_TO_DS_)) != 0)
+
+#define ClearToDs(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_TO_DS_)); \
+	} while (0)
+
+#define SetFrDs(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_FROM_DS_); \
+	} while (0)
+
+#define GetFrDs(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_FROM_DS_)) != 0)
+
+#define ClearFrDs(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_FROM_DS_)); \
+	} while (0)
+
+#define get_tofr_ds(pframe)	((GetToDs(pframe) << 1) | GetFrDs(pframe))
+
+
+#define SetMFrag(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_FRAG_); \
+	} while (0)
+
+#define GetMFrag(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_MORE_FRAG_)) != 0)
+
+#define ClearMFrag(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_FRAG_)); \
+	} while (0)
+
+#define SetRetry(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_RETRY_); \
+	} while (0)
+
+#define GetRetry(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_RETRY_)) != 0)
+
+#define ClearRetry(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_RETRY_)); \
+	} while (0)
+
+#define SetPwrMgt(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_PWRMGT_); \
+	} while (0)
+
+#define GetPwrMgt(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_PWRMGT_)) != 0)
+
+#define ClearPwrMgt(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_PWRMGT_)); \
+	} while (0)
+
+#define SetMData(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_DATA_); \
+	} while (0)
+
+#define GetMData(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_MORE_DATA_)) != 0)
+
+#define ClearMData(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_DATA_)); \
+	} while (0)
+
+#define SetPrivacy(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_PRIVACY_); \
+	} while (0)
+
+#define GetPrivacy(pbuf)	(((*(unsigned short *)(pbuf)) & \
+				le16_to_cpu(_PRIVACY_)) != 0)
+
+#define ClearPrivacy(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_PRIVACY_)); \
+	} while (0)
+
+
+#define GetOrder(pbuf)	(((*(unsigned short *)(pbuf)) & \
+			le16_to_cpu(_ORDER_)) != 0)
+
+#define GetFrameType(pbuf)	(le16_to_cpu(*(unsigned short *)(pbuf)) & \
+				(BIT(3) | BIT(2)))
+
+#define SetFrameType(pbuf, type)	\
+	do {	\
+		*(unsigned short *)(pbuf) &= __constant_cpu_to_le16(~(BIT(3) | \
+		BIT(2))); \
+		*(unsigned short *)(pbuf) |= __constant_cpu_to_le16(type); \
+	} while (0)
+
+#define GetFrameSubType(pbuf)	(cpu_to_le16(*(unsigned short *)(pbuf)) & \
+				(BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
+				BIT(2)))
+
+#define SetFrameSubType(pbuf, type) \
+	do {    \
+		*(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
+		BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
+		*(unsigned short *)(pbuf) |= cpu_to_le16(type); \
+	} while (0)
+
+#define GetSequence(pbuf)	(cpu_to_le16(*(unsigned short *)\
+				((addr_t)(pbuf) + 22)) >> 4)
+
+#define GetFragNum(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)\
+				(pbuf) + 22)) & 0x0f)
+
+#define GetTupleCache(pbuf)	(cpu_to_le16(*(unsigned short *)\
+				((addr_t)(pbuf) + 22)))
+
+#define SetFragNum(pbuf, num) \
+	do {    \
+		*(unsigned short *)((addr_t)(pbuf) + 22) = \
+			((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
+			le16_to_cpu(~(0x000f))) | \
+			cpu_to_le16(0x0f & (num));     \
+	} while (0)
+
+#define SetSeqNum(pbuf, num) \
+	do {    \
+		*(unsigned short *)((addr_t)(pbuf) + 22) = \
+			((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
+			le16_to_cpu((unsigned short)0x000f)) | \
+			le16_to_cpu((unsigned short)(0xfff0 & (num << 4))); \
+	} while (0)
+
+#define SetDuration(pbuf, dur) \
+	do {    \
+		*(unsigned short *)((addr_t)(pbuf) + 2) |= \
+			cpu_to_le16(0xffff & (dur)); \
+	} while (0)
+
+#define SetPriority(pbuf, tid)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(tid & 0xf); \
+	} while (0)
+
+#define GetPriority(pbuf)	((le16_to_cpu(*(unsigned short *)(pbuf))) & 0xf)
+
+#define SetAckpolicy(pbuf, ack)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
+	} while (0)
+
+#define GetAckpolicy(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 5) & 0x3)
+
+#define GetAMsdu(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 7) & 0x1)
+
+#define SetAMsdu(pbuf, amsdu)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16((amsdu & 1) << 7); \
+	} while (0)
+
+#define GetAid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + 2)) \
+			& 0x3fff)
+
+#define GetTid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + \
+			(((GetToDs(pbuf) << 1)|GetFrDs(pbuf)) == 3 ? \
+			30 : 24))) & 0x000f)
+
+#define GetAddr1Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 4))
+
+#define GetAddr2Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 10))
+
+#define GetAddr3Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 16))
+
+#define GetAddr4Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 24))
+
+
+
+static inline int IS_MCAST(unsigned char *da)
+{
+	if ((*da) & 0x01)
+		return true;
+	else
+		return false;
+}
+
+
+static inline unsigned char *get_da(unsigned char *pframe)
+{
+	unsigned char	*da;
+	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
+
+	switch (to_fr_ds) {
+	case 0x00:	/* ToDs=0, FromDs=0 */
+		da = GetAddr1Ptr(pframe);
+		break;
+	case 0x01:	/* ToDs=0, FromDs=1 */
+		da = GetAddr1Ptr(pframe);
+		break;
+	case 0x02:	/* ToDs=1, FromDs=0 */
+		da = GetAddr3Ptr(pframe);
+		break;
+	default:	/* ToDs=1, FromDs=1 */
+		da = GetAddr3Ptr(pframe);
+		break;
+	}
+	return da;
+}
+
+
+static inline unsigned char *get_sa(unsigned char *pframe)
+{
+	unsigned char	*sa;
+	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
+
+	switch (to_fr_ds) {
+	case 0x00:	/* ToDs=0, FromDs=0 */
+		sa = GetAddr2Ptr(pframe);
+		break;
+	case 0x01:	/* ToDs=0, FromDs=1 */
+		sa = GetAddr3Ptr(pframe);
+		break;
+	case 0x02:	/* ToDs=1, FromDs=0 */
+		sa = GetAddr2Ptr(pframe);
+		break;
+	default:	/* ToDs=1, FromDs=1 */
+		sa = GetAddr4Ptr(pframe);
+		break;
+	}
+
+	return sa;
+}
+
+static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
+{
+	unsigned char	*sa;
+	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
+
+	switch (to_fr_ds) {
+	case 0x00:	/* ToDs=0, FromDs=0 */
+		sa = GetAddr3Ptr(pframe);
+		break;
+	case 0x01:	/* ToDs=0, FromDs=1 */
+		sa = GetAddr2Ptr(pframe);
+		break;
+	case 0x02:	/* ToDs=1, FromDs=0 */
+		sa = GetAddr1Ptr(pframe);
+		break;
+	default:	/* ToDs=1, FromDs=1 */
+		sa = NULL;
+		break;
+	}
+	return sa;
+}
+
+
+
+/*-----------------------------------------------------------------------------
+			Below is for the security related definition
+------------------------------------------------------------------------------*/
+#define _RESERVED_FRAME_TYPE_	0
+#define _SKB_FRAME_TYPE_	2
+#define _PRE_ALLOCMEM_		1
+#define _PRE_ALLOCHDR_		3
+#define _PRE_ALLOCLLCHDR_	4
+#define _PRE_ALLOCICVHDR_	5
+#define _PRE_ALLOCMICHDR_	6
+
+#define _SIFSTIME_		((priv->pmib->BssType.net_work_type & \
+				WIRELESS_11A) ? 16 : 10)
+#define _ACKCTSLNG_		14	/*14 bytes long, including crclng */
+#define _CRCLNG_		4
+
+#define _ASOCREQ_IE_OFFSET_	4	/* excluding wlan_hdr */
+#define	_ASOCRSP_IE_OFFSET_	6
+#define _REASOCREQ_IE_OFFSET_	10
+#define _REASOCRSP_IE_OFFSET_	6
+#define _PROBEREQ_IE_OFFSET_	0
+#define	_PROBERSP_IE_OFFSET_	12
+#define _AUTH_IE_OFFSET_	6
+#define _DEAUTH_IE_OFFSET_	0
+#define _BEACON_IE_OFFSET_	12
+
+#define _FIXED_IE_LENGTH_	_BEACON_IE_OFFSET_
+
+#define _SSID_IE_		0
+#define _SUPPORTEDRATES_IE_	1
+#define _DSSET_IE_		3
+#define _TIM_IE_		5
+#define _IBSS_PARA_IE_		6
+#define _CHLGETXT_IE_		16
+#define _RSN_IE_2_		48`
+#define _SSN_IE_1_		221
+#define _ERPINFO_IE_		42
+#define _EXT_SUPPORTEDRATES_IE_	50
+
+#define _HT_CAPABILITY_IE_	45
+#define _HT_EXTRA_INFO_IE_	61
+#define _HT_ADD_INFO_IE_	61 /* _HT_EXTRA_INFO_IE_ */
+
+#define _VENDOR_SPECIFIC_IE_	221
+
+#define	_RESERVED47_		47
+
+
+/* ---------------------------------------------------------------------------
+					Below is the fixed elements...
+-----------------------------------------------------------------------------*/
+#define _AUTH_ALGM_NUM_			2
+#define _AUTH_SEQ_NUM_			2
+#define _BEACON_ITERVAL_		2
+#define _CAPABILITY_			2
+#define _CURRENT_APADDR_		6
+#define _LISTEN_INTERVAL_		2
+#define _RSON_CODE_				2
+#define _ASOC_ID_				2
+#define _STATUS_CODE_			2
+#define _TIMESTAMP_				8
+
+#define AUTH_ODD_TO				0
+#define AUTH_EVEN_TO			1
+
+#define WLAN_ETHCONV_ENCAP		1
+#define WLAN_ETHCONV_RFC1042	2
+#define WLAN_ETHCONV_8021h		3
+
+#define cap_ESS BIT(0)
+#define cap_IBSS BIT(1)
+#define cap_CFPollable BIT(2)
+#define cap_CFRequest BIT(3)
+#define cap_Privacy BIT(4)
+#define cap_ShortPremble BIT(5)
+
+/*-----------------------------------------------------------------------------
+				Below is the definition for 802.11i / 802.1x
+------------------------------------------------------------------------------*/
+#define _IEEE8021X_MGT_			1	/*WPA */
+#define _IEEE8021X_PSK_			2	/* WPA with pre-shared key */
+
+/*-----------------------------------------------------------------------------
+				Below is the definition for WMM
+------------------------------------------------------------------------------*/
+#define _WMM_IE_Length_				7  /* for WMM STA */
+#define _WMM_Para_Element_Length_		24
+
+
+/*-----------------------------------------------------------------------------
+				Below is the definition for 802.11n
+------------------------------------------------------------------------------*/
+
+/* block-ack parameters */
+#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
+#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
+#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
+
+#define SetOrderBit(pbuf)	\
+	do	{	\
+		*(unsigned short *)(pbuf) |= cpu_to_le16(_ORDER_); \
+	} while (0)
+
+#define GetOrderBit(pbuf)	(((*(unsigned short *)(pbuf)) & \
+				le16_to_cpu(_ORDER_)) != 0)
+
+
+/**
+ * struct ieee80211_bar - HT Block Ack Request
+ *
+ * This structure refers to "HT BlockAckReq" as
+ * described in 802.11n draft section 7.2.1.7.1
+ */
+struct ieee80211_bar {
+	unsigned short frame_control;
+	unsigned short duration;
+	unsigned char ra[6];
+	unsigned char ta[6];
+	unsigned short control;
+	unsigned short start_seq_num;
+} __attribute__((packed));
+
+/* 802.11 BAR control masks */
+#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
+#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
+
+
+ /**
+ * struct ieee80211_ht_cap - HT capabilities
+ *
+ * This structure refers to "HT capabilities element" as
+ * described in 802.11n draft section 7.3.2.52
+ */
+
+struct ieee80211_ht_cap {
+	unsigned short	cap_info;
+	unsigned char	ampdu_params_info;
+	unsigned char	supp_mcs_set[16];
+	unsigned short	extended_ht_cap_info;
+	unsigned int		tx_BF_cap_info;
+	unsigned char	       antenna_selection_info;
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_ht_cap - HT additional information
+ *
+ * This structure refers to "HT information element" as
+ * described in 802.11n draft section 7.3.2.53
+ */
+struct ieee80211_ht_addt_info {
+	unsigned char	control_chan;
+	unsigned char		ht_param;
+	unsigned short	operation_mode;
+	unsigned short	stbc_param;
+	unsigned char		basic_set[16];
+} __attribute__ ((packed));
+
+/* 802.11n HT capabilities masks */
+#define IEEE80211_HT_CAP_SUP_WIDTH		0x0002
+#define IEEE80211_HT_CAP_SM_PS			0x000C
+#define IEEE80211_HT_CAP_GRN_FLD		0x0010
+#define IEEE80211_HT_CAP_SGI_20			0x0020
+#define IEEE80211_HT_CAP_SGI_40			0x0040
+#define IEEE80211_HT_CAP_TX_STBC			0x0080
+#define IEEE80211_HT_CAP_DELAY_BA		0x0400
+#define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
+#define IEEE80211_HT_CAP_DSSSCCK40		0x1000
+/* 802.11n HT capability AMPDU settings */
+#define IEEE80211_HT_CAP_AMPDU_FACTOR		0x03
+#define IEEE80211_HT_CAP_AMPDU_DENSITY		0x1C
+/* 802.11n HT capability MSC set */
+#define IEEE80211_SUPP_MCS_SET_UEQM		4
+#define IEEE80211_HT_CAP_MAX_STREAMS		4
+#define IEEE80211_SUPP_MCS_SET_LEN		10
+/* maximum streams the spec allows */
+#define IEEE80211_HT_CAP_MCS_TX_DEFINED		0x01
+#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF		0x02
+#define IEEE80211_HT_CAP_MCS_TX_STREAMS		0x0C
+#define IEEE80211_HT_CAP_MCS_TX_UEQM		0x10
+/* 802.11n HT IE masks */
+#define IEEE80211_HT_IE_CHA_SEC_OFFSET		0x03
+#define IEEE80211_HT_IE_CHA_SEC_NONE		0x00
+#define IEEE80211_HT_IE_CHA_SEC_ABOVE		0x01
+#define IEEE80211_HT_IE_CHA_SEC_BELOW		0x03
+#define IEEE80211_HT_IE_CHA_WIDTH		0x04
+#define IEEE80211_HT_IE_HT_PROTECTION		0x0003
+#define IEEE80211_HT_IE_NON_GF_STA_PRSNT	0x0004
+#define IEEE80211_HT_IE_NON_HT_STA_PRSNT	0x0010
+
+/* block-ack parameters */
+#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
+#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
+#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
+
+/*
+ * A-PMDU buffer sizes
+ * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
+ */
+#define IEEE80211_MIN_AMPDU_BUF 0x8
+#define IEEE80211_MAX_AMPDU_BUF 0x40
+
+
+/* Spatial Multiplexing Power Save Modes */
+#define WLAN_HT_CAP_SM_PS_STATIC		0
+#define WLAN_HT_CAP_SM_PS_DYNAMIC	1
+#define WLAN_HT_CAP_SM_PS_INVALID	2
+#define WLAN_HT_CAP_SM_PS_DISABLED	3
+
+#endif /* _WIFI_H_ */
+