staging: r8723au: Add source files for new driver - part 4

The Realtek USB device RTL8723AU is found in Lenovo Yoga 13 tablets.
A driver for it has been available in a GitHub repo for several months.
This commit contains the fourth part of source files. The source
is arbitrarily split to avoid E-mail files that are too large.

Jes Sorensen at RedHat has made many improvements to the vendor code,
and he has been doing the testing. I do not have access to this device.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8723au/include/rtw_xmit.h b/drivers/staging/rtl8723au/include/rtw_xmit.h
new file mode 100644
index 0000000..65a33a0
--- /dev/null
+++ b/drivers/staging/rtl8723au/include/rtw_xmit.h
@@ -0,0 +1,407 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ ******************************************************************************/
+#ifndef _RTW_XMIT_H_
+#define _RTW_XMIT_H_
+
+#include <osdep_service.h>
+#include <drv_types.h>
+
+#define MAX_XMITBUF_SZ		2048
+#define NR_XMITBUFF		4
+
+#define XMITBUF_ALIGN_SZ	512
+
+/*  xmit extension buff defination */
+#define MAX_XMIT_EXTBUF_SZ	1536
+#define NR_XMIT_EXTBUFF		32
+
+#define MAX_NUMBLKS		1
+
+#define XMIT_VO_QUEUE		0
+#define XMIT_VI_QUEUE		1
+#define XMIT_BE_QUEUE		2
+#define XMIT_BK_QUEUE		3
+
+#define VO_QUEUE_INX		0
+#define VI_QUEUE_INX		1
+#define BE_QUEUE_INX		2
+#define BK_QUEUE_INX		3
+#define BCN_QUEUE_INX		4
+#define MGT_QUEUE_INX		5
+#define HIGH_QUEUE_INX		6
+#define TXCMD_QUEUE_INX		7
+
+#define HW_QUEUE_ENTRY		8
+
+#define WEP_IV(pattrib_iv, dot11txpn, keyidx)				\
+do {									\
+	pattrib_iv[0] = dot11txpn._byte_.TSC0;				\
+	pattrib_iv[1] = dot11txpn._byte_.TSC1;				\
+	pattrib_iv[2] = dot11txpn._byte_.TSC2;				\
+	pattrib_iv[3] = ((keyidx & 0x3) << 6);				\
+	dot11txpn.val = (dot11txpn.val == 0xffffff) ? 0 :		\
+			 (dot11txpn.val+1);				\
+} while (0)
+
+#define TKIP_IV(pattrib_iv, dot11txpn, keyidx)				\
+do {									\
+	pattrib_iv[0] = dot11txpn._byte_.TSC1;				\
+	pattrib_iv[1] = (dot11txpn._byte_.TSC1 | 0x20) & 0x7f;		\
+	pattrib_iv[2] = dot11txpn._byte_.TSC0;				\
+	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);			\
+	pattrib_iv[4] = dot11txpn._byte_.TSC2;				\
+	pattrib_iv[5] = dot11txpn._byte_.TSC3;				\
+	pattrib_iv[6] = dot11txpn._byte_.TSC4;				\
+	pattrib_iv[7] = dot11txpn._byte_.TSC5;				\
+	dot11txpn.val = dot11txpn.val == 0xffffffffffffULL ? 0 :	\
+					 (dot11txpn.val+1);		\
+} while (0)
+
+#define AES_IV(pattrib_iv, dot11txpn, keyidx)\
+do {									\
+	pattrib_iv[0] = dot11txpn._byte_.TSC0;				\
+	pattrib_iv[1] = dot11txpn._byte_.TSC1;				\
+	pattrib_iv[2] = 0;						\
+	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3) << 6);			\
+	pattrib_iv[4] = dot11txpn._byte_.TSC2;				\
+	pattrib_iv[5] = dot11txpn._byte_.TSC3;				\
+	pattrib_iv[6] = dot11txpn._byte_.TSC4;				\
+	pattrib_iv[7] = dot11txpn._byte_.TSC5;				\
+	dot11txpn.val = dot11txpn.val == 0xffffffffffffULL ? 0 :	\
+					 (dot11txpn.val+1);		\
+} while (0)
+
+#define HWXMIT_ENTRY	4
+
+#define TXDESC_SIZE 32
+
+#define PACKET_OFFSET_SZ 8
+#define TXDESC_OFFSET (TXDESC_SIZE + PACKET_OFFSET_SZ)
+
+struct tx_desc {
+	/* DWORD 0 */
+	unsigned int txdw0;
+	unsigned int txdw1;
+	unsigned int txdw2;
+	unsigned int txdw3;
+	unsigned int txdw4;
+	unsigned int txdw5;
+	unsigned int txdw6;
+	unsigned int txdw7;
+};
+
+union txdesc {
+	struct tx_desc txdesc;
+	unsigned int value[TXDESC_SIZE>>2];
+};
+
+struct	hw_xmit	{
+	struct rtw_queue *sta_queue;
+	int	accnt;
+};
+
+/* reduce size */
+struct pkt_attrib {
+	u8	type;
+	u8	subtype;
+	u8	bswenc;
+	u8	dhcp_pkt;
+	u16	ether_type;
+	u16	seqnum;
+	u16	pkt_hdrlen;	/* the original 802.3 pkt header len */
+	u16	hdrlen;		/* the WLAN Header Len */
+	u32	pktlen;		/* the original 802.3 pkt raw_data len */
+	u32	last_txcmdsz;
+	u8	nr_frags;
+	u8	encrypt;	/* when 0 indicate no encrypt. */
+	u8	iv_len;
+	u8	icv_len;
+	u8	iv[18];
+	u8	icv[16];
+	u8	priority;
+	u8	ack_policy;
+	u8	mac_id;
+	u8	vcs_mode;	/* virtual carrier sense method */
+	u8	dst[ETH_ALEN];
+	u8	src[ETH_ALEN];
+	u8	ta[ETH_ALEN];
+	u8	ra[ETH_ALEN];
+	u8	key_idx;
+	u8	qos_en;
+	u8	ht_en;
+	u8	raid;/* rate adpative id */
+	u8	bwmode;
+	u8	ch_offset;/* PRIME_CHNL_OFFSET */
+	u8	sgi;/* short GI */
+	u8	ampdu_en;/* tx ampdu enable */
+	u8	mdata;/* more data bit */
+	u8	pctrl;/* per packet txdesc control enable */
+	u8	triggered;/* for ap mode handling Power Saving sta */
+	u8	qsel;
+	u8	eosp;
+	u8	rate;
+	u8	retry_ctrl;
+	struct sta_info *psta;
+};
+
+#define WLANHDR_OFFSET		64
+
+#define NULL_FRAMETAG		0x0
+#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  submit_ctx {
+	u32 timeout_ms; /* <0: not synchronous, 0: wait forever,
+			 * >0: up to ms waiting
+			 */
+	int status; /* status for operation */
+	struct completion done;
+};
+
+enum {
+	RTW_SCTX_SUBMITTED = -1,
+	RTW_SCTX_DONE_SUCCESS = 0,
+	RTW_SCTX_DONE_UNKNOWN,
+	RTW_SCTX_DONE_TIMEOUT,
+	RTW_SCTX_DONE_BUF_ALLOC,
+	RTW_SCTX_DONE_BUF_FREE,
+	RTW_SCTX_DONE_WRITE_PORT_ERR,
+	RTW_SCTX_DONE_TX_DESC_NA,
+	RTW_SCTX_DONE_TX_DENY,
+	RTW_SCTX_DONE_CCX_PKT_FAIL,
+	RTW_SCTX_DONE_DRV_STOP,
+	RTW_SCTX_DONE_DEV_REMOVE,
+};
+
+void rtw_sctx_init23a(struct submit_ctx *sctx, int timeout_ms);
+int rtw_sctx_wait23a(struct submit_ctx *sctx);
+void rtw23a_sctx_done_err(struct submit_ctx **sctx, int status);
+void rtw_sctx_done23a(struct submit_ctx **sctx);
+
+struct xmit_buf {
+	struct list_head list, list2;
+	struct rtw_adapter *padapter;
+
+	u8 *pallocated_buf;
+	u8 *pbuf;
+	void *priv_data;
+
+	u16 ext_tag; /*  0: Normal xmitbuf, 1: extension xmitbuf. */
+	u16 flags;
+	u32 alloc_sz;
+	u32  len;
+	struct submit_ctx *sctx;
+	u32	ff_hwaddr;
+	struct urb *pxmit_urb[8];
+	u8 bpending[8];
+	int last[8];
+#if defined(DBG_XMIT_BUF) || defined(DBG_XMIT_BUF_EXT)
+	u8 no;
+#endif
+};
+
+struct xmit_frame {
+	struct list_head	list;
+	struct pkt_attrib attrib;
+	struct sk_buff *pkt;
+	int	frame_tag;
+	struct rtw_adapter *padapter;
+	u8	*buf_addr;
+	struct xmit_buf *pxmitbuf;
+
+	s8	pkt_offset;
+
+	u8 ack_report;
+
+	u8 ext_tag; /* 0:data, 1:mgmt */
+};
+
+struct tx_servq {
+	struct list_head	tx_pending;
+	struct rtw_queue	sta_pending;
+	int qcnt;
+};
+
+struct sta_xmit_priv {
+	spinlock_t	lock;
+	int	option;
+	int	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];
+};
+
+struct	hw_txqueue {
+	volatile int head;
+	volatile int tail;
+	volatile int free_sz;	/* in units of 64 bytes */
+	volatile int free_cmdsz;
+	volatile int txsz[8];
+	uint	ff_hwaddr;
+	uint	cmd_hwaddr;
+	int	ac_tag;
+};
+
+struct agg_pkt_info {
+	u16 offset;
+	u16 pkt_len;
+};
+
+struct	xmit_priv {
+	spinlock_t	lock;
+
+	struct semaphore	xmit_sema;
+	struct semaphore	terminate_xmitthread_sema;
+
+	struct rtw_queue	be_pending;
+	struct rtw_queue	bk_pending;
+	struct rtw_queue	vi_pending;
+	struct rtw_queue	vo_pending;
+	struct rtw_queue	bm_pending;
+
+	u8 *pallocated_frame_buf;
+	u8 *pxmit_frame_buf;
+	uint free_xmitframe_cnt;
+	struct rtw_queue	free_xmit_queue;
+
+	u8 *xframe_ext_alloc_addr;
+	u8 *xframe_ext;
+	uint free_xframe_ext_cnt;
+	struct rtw_queue free_xframe_ext_queue;
+
+	uint	frag_len;
+
+	struct rtw_adapter	*adapter;
+
+	u8   vcs_setting;
+	u8	vcs;
+	u8	vcs_type;
+
+	u64	tx_bytes;
+	u64	tx_pkts;
+	u64	tx_drop;
+	u64	last_tx_bytes;
+	u64	last_tx_pkts;
+
+	struct hw_xmit *hwxmits;
+	u8	hwxmit_entry;
+
+	u8	wmm_para_seq[4];/* sequence for wmm ac parameter strength from
+				 * large to small. it's value is 0->vo, 1->vi,
+				 * 2->be, 3->bk.
+				 */
+
+	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 rtw_queue free_xmitbuf_queue;
+	struct list_head xmitbuf_list;		/* track buffers for cleanup */
+	struct rtw_queue pending_xmitbuf_queue;
+	uint free_xmitbuf_cnt;
+
+	struct rtw_queue free_xmit_extbuf_queue;
+	struct list_head xmitextbuf_list;	/* track buffers for cleanup */
+	uint free_xmit_extbuf_cnt;
+
+	u16	nqos_ssn;
+	int	ack_tx;
+	struct mutex ack_tx_mutex;
+	struct submit_ctx ack_tx_ops;
+	spinlock_t lock_sctx;
+};
+
+struct xmit_buf *rtw_alloc_xmitbuf23a_ext(struct xmit_priv *pxmitpriv);
+s32 rtw_free_xmitbuf_ext23a(struct xmit_priv *pxmitpriv,
+			 struct xmit_buf *pxmitbuf);
+
+struct xmit_buf *rtw_alloc_xmitbuf23a(struct xmit_priv *pxmitpriv);
+s32 rtw_free_xmitbuf23a(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf);
+
+void rtw_count_tx_stats23a(struct rtw_adapter *padapter,
+			struct xmit_frame *pxmitframe, int sz);
+void rtw_update_protection23a(struct rtw_adapter *padapter, u8 *ie, uint ie_len);
+s32 rtw_make_wlanhdr23a(struct rtw_adapter *padapter, u8 *hdr,
+		     struct pkt_attrib *pattrib);
+s32 rtw_put_snap23a(u8 *data, u16 h_proto);
+struct xmit_frame *rtw_alloc_xmitframe23a(struct xmit_priv *pxmitpriv);
+struct xmit_frame *rtw_alloc_xmitframe23a_ext(struct xmit_priv *pxmitpriv);
+struct xmit_frame *rtw_alloc_xmitframe23a_once(struct xmit_priv *pxmitpriv);
+s32 rtw_free_xmitframe23a(struct xmit_priv *pxmitpriv,
+		       struct xmit_frame *pxmitframe);
+void rtw_free_xmitframe_queue23a(struct xmit_priv *pxmitpriv, struct rtw_queue *pframequeue);
+struct tx_servq *rtw_get_sta_pending23a(struct rtw_adapter *padapter,
+				     struct sta_info *psta, int up, u8 *ac);
+s32 rtw_xmitframe_enqueue23a(struct rtw_adapter *padapter,
+			     struct xmit_frame *pxmitframe);
+struct xmit_frame *rtw_dequeue_xframe23a(struct xmit_priv *pxmitpriv,
+				      struct hw_xmit *phwxmit_i, int entry);
+s32 rtw_xmit23a_classifier(struct rtw_adapter *padapter,
+			struct xmit_frame *pxmitframe);
+u32 rtw_calculate_wlan_pkt_size_by_attribue23a(struct pkt_attrib *pattrib);
+#define rtw_wlan_pkt_size(f) rtw_calculate_wlan_pkt_size_by_attribue23a(&f->attrib)
+s32 rtw_xmitframe_coalesce23a(struct rtw_adapter *padapter, struct sk_buff *pkt,
+			      struct xmit_frame *pxmitframe);
+s32 _rtw_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
+void _rtw_init_sta_xmit_priv23a(struct sta_xmit_priv *psta_xmitpriv);
+
+s32 rtw_txframes_pending23a(struct rtw_adapter *padapter);
+s32 rtw_txframes_sta_ac_pending23a(struct rtw_adapter *padapter,
+				struct pkt_attrib *pattrib);
+void rtw_init_hwxmits23a(struct hw_xmit *phwxmit, int entry);
+s32 _rtw_init_xmit_priv23a(struct xmit_priv *pxmitpriv,
+			struct rtw_adapter *padapter);
+void _rtw_free_xmit_priv23a(struct xmit_priv *pxmitpriv);
+void rtw_alloc_hwxmits23a(struct rtw_adapter *padapter);
+void rtw_free_hwxmits23a(struct rtw_adapter *padapter);
+int rtw_xmit23a(struct rtw_adapter *padapter, struct sk_buff *pkt);
+#if defined(CONFIG_8723AU_AP_MODE)
+int xmitframe_enqueue_for_sleeping_sta23a(struct rtw_adapter *padapter,
+				       struct xmit_frame *pxmitframe);
+void stop_sta_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta);
+void wakeup_sta_to_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta);
+void xmit_delivery_enabled_frames23a(struct rtw_adapter *padapter,
+				  struct sta_info *psta);
+#endif
+u8	qos_acm23a(u8 acm_mask, u8 priority);
+u32	rtw_get_ff_hwaddr23a(struct xmit_frame	*pxmitframe);
+int rtw_ack_tx_wait23a(struct xmit_priv *pxmitpriv, u32 timeout_ms);
+void rtw_ack_tx_done23a(struct xmit_priv *pxmitpriv, int status);
+
+/* include after declaring struct xmit_buf, in order to avoid warning */
+#include <xmit_osdep.h>
+
+#endif	/* _RTL871X_XMIT_H_ */