--- /dev/null
+#ifndef _RTL871X_RECV_H_
+#define _RTL871X_RECV_H_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+
+#define NR_RECVFRAME 256
+
+#define RXFRAME_ALIGN 8
+#define RXFRAME_ALIGN_SZ (1 << RXFRAME_ALIGN)
+
+#define MAX_RXFRAME_CNT 512
+#define MAX_RX_NUMBLKS (32)
+#define RECVFRAME_HDR_ALIGN 128
+#define MAX_SUBFRAME_COUNT 64
+
+#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
+
+/* for Rx reordering buffer control */
+struct recv_reorder_ctrl {
+ struct _adapter *padapter;
+ u16 indicate_seq;/* =wstart_b, init_value=0xffff */
+ u16 wend_b;
+ u8 wsize_b;
+ struct __queue pending_recvframe_queue;
+ struct timer_list reordering_ctrl_timer;
+};
+
+struct stainfo_rxcache {
+ u16 tid_rxseq[16];
+};
+
+#define PHY_RSSI_SLID_WIN_MAX 100
+#define PHY_LINKQUALITY_SLID_WIN_MAX 20
+
+
+struct smooth_rssi_data {
+ u32 elements[100]; /* array to store values */
+ u32 index; /* index to current array to store */
+ u32 total_num; /* num of valid elements */
+ u32 total_val; /* sum of valid elements */
+};
+
+struct rx_pkt_attrib {
+
+ u8 amsdu;
+ u8 order;
+ u8 qos;
+ u8 to_fr_ds;
+ u8 frag_num;
+ u16 seq_num;
+ u8 pw_save;
+ u8 mfrag;
+ u8 mdata;
+ u8 privacy; /* in frame_ctrl field */
+ u8 bdecrypted;
+ int hdrlen; /* the WLAN Header Len */
+ int encrypt; /* 0 no encrypt. != 0 encrypt algorith */
+ int iv_len;
+ int icv_len;
+ int priority;
+ int ack_policy;
+ u8 crc_err;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ u8 ta[ETH_ALEN];
+ u8 ra[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ u8 tcpchk_valid; /* 0: invalid, 1: valid */
+ u8 ip_chkrpt; /* 0: incorrect, 1: correct */
+ u8 tcp_chkrpt; /* 0: incorrect, 1: correct */
+ u8 signal_qual;
+ s8 rx_mimo_signal_qual[2];
+ u8 mcs_rate;
+ u8 htc;
+ u8 signal_strength;
+};
+
+/*
+accesser of recv_priv: recv_entry(dispatch / passive level);
+recv_thread(passive) ; returnpkt(dispatch)
+; halt(passive) ;
+
+using enter_critical section to protect
+*/
+struct recv_priv {
+ spinlock_t lock;
+ struct semaphore recv_sema;
+ struct semaphore terminate_recvthread_sema;
+ struct __queue free_recv_queue;
+ struct __queue recv_pending_queue;
+ u8 *pallocated_frame_buf;
+ u8 *precv_frame_buf;
+ uint free_recvframe_cnt;
+ struct _adapter *adapter;
+ uint rx_bytes;
+ uint rx_pkts;
+ uint rx_drop;
+ uint rx_icv_err;
+ uint rx_largepacket_crcerr;
+ uint rx_smallpacket_crcerr;
+ uint rx_middlepacket_crcerr;
+ struct semaphore allrxreturnevt;
+ u8 rx_pending_cnt;
+ uint ff_hwaddr;
+ struct tasklet_struct recv_tasklet;
+ struct sk_buff_head free_recv_skb_queue;
+ struct sk_buff_head rx_skb_queue;
+ u8 *pallocated_recv_buf;
+ u8 *precv_buf; /* 4 alignment */
+ struct __queue free_recv_buf_queue;
+ u32 free_recv_buf_queue_cnt;
+ /* For the phy informatiom */
+ s8 rssi;
+ u8 signal;
+ u8 noise;
+ u8 fw_rssi;
+ struct smooth_rssi_data signal_qual_data;
+ struct smooth_rssi_data signal_strength_data;
+};
+
+struct sta_recv_priv {
+ spinlock_t lock;
+ sint option;
+ struct __queue defrag_q; /* keeping the fragment frame until defrag */
+ struct stainfo_rxcache rxcache;
+ uint sta_rx_bytes;
+ uint sta_rx_pkts;
+ uint sta_rx_fail;
+};
+
+#include "rtl8712_recv.h"
+
+/* get a free recv_frame from pfree_recv_queue */
+union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue);
+union recv_frame *r8712_dequeue_recvframe(struct __queue *queue);
+int r8712_enqueue_recvframe(union recv_frame *precvframe,
+ struct __queue *queue);
+int r8712_free_recvframe(union recv_frame *precvframe,
+ struct __queue *pfree_recv_queue);
+void r8712_free_recvframe_queue(struct __queue *pframequeue,
+ struct __queue *pfree_recv_queue);
+void r8712_init_recvframe(union recv_frame *precvframe,
+ struct recv_priv *precvpriv);
+int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe);
+int recv_func(struct _adapter *padapter, void *pcontext);
+
+static inline u8 *get_rxmem(union recv_frame *precvframe)
+{
+ /* always return rx_head... */
+ if (precvframe == NULL)
+ return NULL;
+ return precvframe->u.hdr.rx_head;
+}
+
+static inline u8 *get_rx_status(union recv_frame *precvframe)
+{
+ return get_rxmem(precvframe);
+}
+
+static inline u8 *get_recvframe_data(union recv_frame *precvframe)
+{
+ /* always return rx_data */
+ if (precvframe == NULL)
+ return NULL;
+ return precvframe->u.hdr.rx_data;
+}
+
+static inline u8 *recvframe_push(union recv_frame *precvframe, sint sz)
+{
+ /* append data before rx_data */
+
+ /* add data to the start of recv_frame
+ *
+ * This function extends the used data area of the recv_frame at the
+ * buffer start. rx_data must be still larger than rx_head, after
+ * pushing.
+ */
+
+ if (precvframe == NULL)
+ return NULL;
+ precvframe->u.hdr.rx_data -= sz ;
+ if (precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head) {
+ precvframe->u.hdr.rx_data += sz ;
+ return NULL;
+ }
+ precvframe->u.hdr.len += sz;
+ return precvframe->u.hdr.rx_data;
+}
+
+static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
+{
+ /* used for extract sz bytes from rx_data, update rx_data and return
+ * the updated rx_data to the caller */
+ if (precvframe == NULL)
+ return NULL;
+ precvframe->u.hdr.rx_data += sz;
+ if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) {
+ precvframe->u.hdr.rx_data -= sz;
+ return NULL;
+ }
+ precvframe->u.hdr.len -= sz;
+ return precvframe->u.hdr.rx_data;
+}
+
+static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz)
+{
+ /* used for append sz bytes from ptr to rx_tail, update rx_tail and
+ * return the updated rx_tail to the caller
+ * after putting, rx_tail must be still larger than rx_end. */
+ unsigned char *prev_rx_tail;
+
+ if (precvframe == NULL)
+ return NULL;
+ prev_rx_tail = precvframe->u.hdr.rx_tail;
+ precvframe->u.hdr.rx_tail += sz;
+ if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) {
+ precvframe->u.hdr.rx_tail -= sz;
+ return NULL;
+ }
+ precvframe->u.hdr.len += sz;
+ return precvframe->u.hdr.rx_tail;
+}
+
+static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
+{
+ /* rmv data from rx_tail (by yitsen)
+ * used for extract sz bytes from rx_end, update rx_end and return the
+ * updated rx_end to the caller
+ * after pulling, rx_end must be still larger than rx_data. */
+ if (precvframe == NULL)
+ return NULL;
+ precvframe->u.hdr.rx_tail -= sz;
+ if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) {
+ precvframe->u.hdr.rx_tail += sz;
+ return NULL;
+ }
+ precvframe->u.hdr.len -= sz;
+ return precvframe->u.hdr.rx_tail;
+}
+
+static inline _buffer *get_rxbuf_desc(union recv_frame *precvframe)
+{
+ _buffer *buf_desc;
+ if (precvframe == NULL)
+ return NULL;
+ return buf_desc;
+}
+
+static inline union recv_frame *rxmem_to_recvframe(u8 *rxmem)
+{
+ /* due to the design of 2048 bytes alignment of recv_frame, we can
+ * reference the union recv_frame from any given member of recv_frame.
+ * rxmem indicates the any member/address in recv_frame */
+ return (union recv_frame *)(((addr_t)rxmem >> RXFRAME_ALIGN) <<
+ RXFRAME_ALIGN);
+}
+
+static inline union recv_frame *pkt_to_recvframe(_pkt *pkt)
+{
+ u8 *buf_star;
+ union recv_frame *precv_frame;
+
+ precv_frame = rxmem_to_recvframe((unsigned char *)buf_star);
+ return precv_frame;
+}
+
+static inline u8 *pkt_to_recvmem(_pkt *pkt)
+{
+ /* return the rx_head */
+ union recv_frame *precv_frame = pkt_to_recvframe(pkt);
+
+ return precv_frame->u.hdr.rx_head;
+}
+
+static inline u8 *pkt_to_recvdata(_pkt *pkt)
+{
+ /* return the rx_data */
+ union recv_frame *precv_frame = pkt_to_recvframe(pkt);
+
+ return precv_frame->u.hdr.rx_data;
+}
+
+static inline sint get_recvframe_len(union recv_frame *precvframe)
+{
+ return precvframe->u.hdr.len;
+}
+
+struct sta_info;
+
+void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
+sint r8712_recvframe_chkmic(struct _adapter *adapter,
+ union recv_frame *precvframe);
+union recv_frame *r8712_decryptor(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+union recv_frame *r8712_recvframe_defrag(struct _adapter *adapter,
+ struct __queue *defrag_q);
+union recv_frame *r8712_recvframe_chk_defrag_new(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+union recv_frame *r8712_recvframe_defrag_new(struct _adapter *adapter,
+ struct __queue *defrag_q,
+ union recv_frame *precv_frame);
+int r8712_recv_decache(union recv_frame *precv_frame, u8 bretry,
+ struct stainfo_rxcache *prxcache);
+int r8712_sta2sta_data_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame,
+ struct sta_info **psta);
+int r8712_ap2sta_data_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame,
+ struct sta_info **psta);
+int r8712_sta2ap_data_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame,
+ struct sta_info **psta);
+int r8712_validate_recv_ctrl_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+int r8712_validate_recv_mgnt_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+int r8712_validate_recv_data_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+int r8712_validate_recv_frame(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+union recv_frame *r8712_portctrl(struct _adapter *adapter,
+ union recv_frame *precv_frame);
+void r8712_mgt_dispatcher(struct _adapter *padapter, u8 *pframe, uint len);
+int r8712_amsdu_to_msdu(struct _adapter *padapter, union recv_frame *prframe);
+
+#endif
+
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