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, 260 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl871x_xmit.h b/drivers/staging/rtl8712/rtl871x_xmit.h
new file mode 100644
index 000000000000..d518ce85585d
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl871x_xmit.h
@@ -0,0 +1,260 @@
+#ifndef _RTL871X_XMIT_H_
+#define _RTL871X_XMIT_H_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "xmit_osdep.h"
+
+#define MAX_XMITBUF_SZ	(2048)
+#define NR_XMITBUFF	(4)
+#define XMITBUF_ALIGN_SZ 512
+#define TX_GUARD_BAND		5
+#define MAX_NUMBLKS		(1)
+
+/* Fixed the Big Endian bug when using the software driver encryption.*/
+#define WEP_IV(pattrib_iv, txpn, keyidx)\
+do { \
+	pattrib_iv[0] = txpn._byte_.TSC0;\
+	pattrib_iv[1] = txpn._byte_.TSC1;\
+	pattrib_iv[2] = txpn._byte_.TSC2;\
+	pattrib_iv[3] = ((keyidx & 0x3)<<6);\
+	txpn.val = (txpn.val == 0xffffff) ? 0 : (txpn.val+1);\
+} while (0)
+
+/* Fixed the Big Endian bug when doing the Tx.
+ * The Linksys WRH54G will check this.*/
+#define TKIP_IV(pattrib_iv, txpn, keyidx)\
+do { \
+	pattrib_iv[0] = txpn._byte_.TSC1;\
+	pattrib_iv[1] = (txpn._byte_.TSC1 | 0x20) & 0x7f;\
+	pattrib_iv[2] = txpn._byte_.TSC0;\
+	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
+	pattrib_iv[4] = txpn._byte_.TSC2;\
+	pattrib_iv[5] = txpn._byte_.TSC3;\
+	pattrib_iv[6] = txpn._byte_.TSC4;\
+	pattrib_iv[7] = txpn._byte_.TSC5;\
+	txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
+	(txpn.val+1);\
+} while (0)
+
+#define AES_IV(pattrib_iv, txpn, keyidx)\
+do { \
+	pattrib_iv[0] = txpn._byte_.TSC0;\
+	pattrib_iv[1] = txpn._byte_.TSC1;\
+	pattrib_iv[2] = 0;\
+	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
+	pattrib_iv[4] = txpn._byte_.TSC2;\
+	pattrib_iv[5] = txpn._byte_.TSC3;\
+	pattrib_iv[6] = txpn._byte_.TSC4;\
+	pattrib_iv[7] = txpn._byte_.TSC5;\
+	txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
+	(txpn.val+1);\
+} while (0)
+
+struct hw_xmit {
+	spinlock_t xmit_lock;
+	struct list_head pending;
+	struct  __queue *sta_queue;
+	struct hw_txqueue *phwtxqueue;
+	sint	txcmdcnt;
+	int	accnt;
+};
+
+struct pkt_attrib {
+	u8	type;
+	u8	subtype;
+	u8	bswenc;
+	u8	dhcp_pkt;
+
+	u16	seqnum;
+	u16	ether_type;
+	u32	pktlen;		/* the original 802.3 pkt raw_data len
+				 * (not include ether_hdr data) */
+	u32	last_txcmdsz;
+
+	u8	pkt_hdrlen;	/*the original 802.3 pkt header len*/
+	u8	hdrlen;		/*the WLAN Header Len*/
+	u8	nr_frags;
+	u8	ack_policy;
+	u8	mac_id;
+	u8	vcs_mode;	/*virtual carrier sense method*/
+	u8	pctrl;/*per packet txdesc control enable*/
+	u8	qsel;
+
+	u8	priority;
+	u8	encrypt;	/* when 0 indicate no encrypt. when non-zero,
+				 * indicate the encrypt algorith*/
+	u8	iv_len;
+	u8	icv_len;
+	unsigned char iv[8];
+	unsigned char icv[8];
+	u8	dst[ETH_ALEN];
+	u8	src[ETH_ALEN];
+	u8	ta[ETH_ALEN];
+	u8	ra[ETH_ALEN];
+	struct sta_info *psta;
+};
+
+#define WLANHDR_OFFSET	64
+#define DATA_FRAMETAG		0x01
+#define L2_FRAMETAG		0x02
+#define MGNT_FRAMETAG		0x03
+#define AMSDU_FRAMETAG	0x04
+#define EII_FRAMETAG		0x05
+#define IEEE8023_FRAMETAG  0x06
+#define MP_FRAMETAG		0x07
+#define TXAGG_FRAMETAG	0x08
+
+struct xmit_buf {
+	struct list_head list;
+
+	u8 *pallocated_buf;
+	u8 *pbuf;
+	struct urb *pxmit_urb[8];
+};
+
+struct xmit_frame {
+	struct list_head list;
+	struct pkt_attrib attrib;
+	_pkt *pkt;
+	int frame_tag;
+	struct _adapter *padapter;
+	 u8 *buf_addr;
+	 struct xmit_buf *pxmitbuf;
+	u8 *mem_addr;
+	u16 sz[8];
+	struct urb *pxmit_urb[8];
+	u8 bpending[8];
+	u8 last[8];
+};
+
+struct tx_servq {
+	struct list_head tx_pending;
+	struct  __queue	sta_pending;
+	int qcnt;
+};
+
+struct sta_xmit_priv {
+	spinlock_t lock;
+	sint	option;
+	sint	apsd_setting;	/* When bit mask is on, the associated edca
+				 * queue supports APSD.*/
+	struct tx_servq	be_q;	/* priority == 0,3 */
+	struct tx_servq	bk_q;	/* priority == 1,2*/
+	struct tx_servq	vi_q;	/*priority == 4,5*/
+	struct tx_servq	vo_q;	/*priority == 6,7*/
+	struct list_head  legacy_dz;
+	struct list_head apsd;
+	u16 txseq_tid[16];
+	uint	sta_tx_bytes;
+	u64	sta_tx_pkts;
+	uint	sta_tx_fail;
+};
+
+struct	hw_txqueue {
+	/*volatile*/ sint	head;
+	/*volatile*/ sint	tail;
+	/*volatile*/ sint	free_sz;	/*in units of 64 bytes*/
+	/*volatile*/ sint      free_cmdsz;
+	/*volatile*/ sint	 txsz[8];
+	uint	ff_hwaddr;
+	uint	cmd_hwaddr;
+	sint	ac_tag;
+};
+
+struct	xmit_priv {
+	spinlock_t lock;
+	struct semaphore xmit_sema;
+	struct semaphore terminate_xmitthread_sema;
+	struct  __queue	be_pending;
+	struct  __queue	bk_pending;
+	struct  __queue	vi_pending;
+	struct  __queue	vo_pending;
+	struct  __queue	bm_pending;
+	struct  __queue	legacy_dz_queue;
+	struct  __queue	apsd_queue;
+	u8 *pallocated_frame_buf;
+	u8 *pxmit_frame_buf;
+	uint free_xmitframe_cnt;
+	uint mapping_addr;
+	uint pkt_sz;
+	struct  __queue	free_xmit_queue;
+	struct	hw_txqueue	be_txqueue;
+	struct	hw_txqueue	bk_txqueue;
+	struct	hw_txqueue	vi_txqueue;
+	struct	hw_txqueue	vo_txqueue;
+	struct	hw_txqueue	bmc_txqueue;
+	uint	frag_len;
+	struct _adapter	*adapter;
+	u8   vcs_setting;
+	u8	vcs;
+	u8	vcs_type;
+	u16  rts_thresh;
+	uint	tx_bytes;
+	u64	tx_pkts;
+	uint	tx_drop;
+	struct hw_xmit *hwxmits;
+	u8	hwxmit_entry;
+	struct semaphore tx_retevt;/*all tx return event;*/
+	u8	txirp_cnt;
+	struct tasklet_struct xmit_tasklet;
+	/*per AC pending irp*/
+	int beq_cnt;
+	int bkq_cnt;
+	int viq_cnt;
+	int voq_cnt;
+	struct  __queue	free_amsdu_xmit_queue;
+	u8 *pallocated_amsdu_frame_buf;
+	u8 *pxmit_amsdu_frame_buf;
+	uint free_amsdu_xmitframe_cnt;
+	struct  __queue free_txagg_xmit_queue;
+	u8 *pallocated_txagg_frame_buf;
+	u8 *pxmit_txagg_frame_buf;
+	uint free_txagg_xmitframe_cnt;
+	int cmdseq;
+	struct  __queue free_xmitbuf_queue;
+	struct  __queue pending_xmitbuf_queue;
+	u8 *pallocated_xmitbuf;
+	u8 *pxmitbuf;
+	uint free_xmitbuf_cnt;
+};
+
+static inline struct  __queue *get_free_xmit_queue(
+				struct xmit_priv *pxmitpriv)
+{
+	return &(pxmitpriv->free_xmit_queue);
+}
+
+int r8712_free_xmitbuf(struct xmit_priv *pxmitpriv,
+		       struct xmit_buf *pxmitbuf);
+struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv);
+void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len);
+struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv);
+void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
+			  struct xmit_frame *pxmitframe);
+void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv,
+				struct  __queue *pframequeue);
+sint r8712_xmit_classifier(struct _adapter *padapter,
+			    struct xmit_frame *pxmitframe);
+sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
+			      struct xmit_frame *pxmitframe);
+sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
+void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv);
+sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
+			 struct pkt_attrib *pattrib);
+int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
+				  struct pkt_attrib *pattrib);
+sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv, struct _adapter *padapter);
+void _free_xmit_priv(struct xmit_priv *pxmitpriv);
+void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
+			     struct xmit_frame *pxmitframe);
+int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
+int r8712_xmit_enqueue(struct _adapter *padapter,
+		       struct xmit_frame *pxmitframe);
+int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
+void r8712_xmit_bh(void *priv);
+
+#include "rtl8712_xmit.h"
+
+#endif	/*_RTL871X_XMIT_H_*/
+