--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2012 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ *
+ ******************************************************************************/
+#ifndef _RTW_RECV_H_
+#define _RTW_RECV_H_
+
+#ifdef PLATFORM_OS_XP
+ #ifdef CONFIG_SDIO_HCI
+ #define NR_RECVBUFF 1024//512//128
+ #else
+ #define NR_RECVBUFF (16)
+ #endif
+#elif defined(PLATFORM_OS_CE)
+ #ifdef CONFIG_SDIO_HCI
+ #define NR_RECVBUFF (128)
+ #else
+ #define NR_RECVBUFF (4)
+ #endif
+#else //PLATFORM_LINUX /PLATFORM_BSD
+
+ #ifdef CONFIG_SINGLE_RECV_BUF
+ #define NR_RECVBUFF (1)
+ #else
+ #if defined(CONFIG_GSPI_HCI)
+ #define NR_RECVBUFF (32)
+ #elif defined(CONFIG_SDIO_HCI)
+ #define NR_RECVBUFF (8)
+ #else
+ #define NR_RECVBUFF (8)
+ #endif
+ #endif //CONFIG_SINGLE_RECV_BUF
+ #ifdef CONFIG_PREALLOC_RX_SKB_BUFFER
+ #define NR_PREALLOC_RECV_SKB (rtw_rtkm_get_nr_recv_skb()>>1)
+ #else /*!CONFIG_PREALLOC_RX_SKB_BUFFER */
+ #define NR_PREALLOC_RECV_SKB 8
+ #endif /* CONFIG_PREALLOC_RX_SKB_BUFFER */
+
+#endif
+
+#define NR_RECVFRAME 256
+
+#define RXFRAME_ALIGN 8
+#define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN)
+
+#define DRVINFO_SZ 4 // unit is 8bytes
+
+#define MAX_RXFRAME_CNT 512
+#define MAX_RX_NUMBLKS (32)
+#define RECVFRAME_HDR_ALIGN 128
+#define MAX_CONTINUAL_NORXPACKET_COUNT 1 /* In MAX_CONTINUAL_NORXPACKET_COUNT*2 sec , no rx traffict would issue DELBA*/
+
+#define PHY_RSSI_SLID_WIN_MAX 100
+#define PHY_LINKQUALITY_SLID_WIN_MAX 20
+
+
+#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
+
+#define RX_MPDU_QUEUE 0
+#define RX_CMD_QUEUE 1
+#define RX_MAX_QUEUE 2
+
+static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
+
+static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
+static u8 SNAP_ETH_TYPE_APPLETALK_DDP[2] = {0x80, 0x9b};
+static u8 SNAP_ETH_TYPE_TDLS[2] = {0x89, 0x0d};
+static u8 SNAP_HDR_APPLETALK_DDP[3] = {0x08, 0x00, 0x07}; // Datagram Delivery Protocol
+
+static u8 oui_8021h[] = {0x00, 0x00, 0xf8};
+static u8 oui_rfc1042[]= {0x00,0x00,0x00};
+
+#define MAX_SUBFRAME_COUNT 64
+static u8 rtw_rfc1042_header[] =
+{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+static u8 rtw_bridge_tunnel_header[] =
+{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+
+//for Rx reordering buffer control
+struct recv_reorder_ctrl
+{
+ _adapter *padapter;
+ u8 enable;
+ u16 indicate_seq;//=wstart_b, init_value=0xffff
+ u16 wend_b;
+ u8 wsize_b;
+ u8 ampdu_size;
+ _queue pending_recvframe_queue;
+ _timer reordering_ctrl_timer;
+ u8 bReorderWaiting;
+};
+
+struct stainfo_rxcache {
+ u16 tid_rxseq[16];
+ u8 iv[16][8];
+/*
+ unsigned short tid0_rxseq;
+ unsigned short tid1_rxseq;
+ unsigned short tid2_rxseq;
+ unsigned short tid3_rxseq;
+ unsigned short tid4_rxseq;
+ unsigned short tid5_rxseq;
+ unsigned short tid6_rxseq;
+ unsigned short tid7_rxseq;
+ unsigned short tid8_rxseq;
+ unsigned short tid9_rxseq;
+ unsigned short tid10_rxseq;
+ unsigned short tid11_rxseq;
+ unsigned short tid12_rxseq;
+ unsigned short tid13_rxseq;
+ unsigned short tid14_rxseq;
+ unsigned short tid15_rxseq;
+*/
+};
+
+
+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 signal_stat {
+ u8 update_req; //used to indicate
+ u8 avg_val; //avg of valid elements
+ u32 total_num; //num of valid elements
+ u32 total_val; //sum of valid elements
+};
+/*
+typedef struct _ODM_Phy_Status_Info_
+{
+ //
+ // Be care, if you want to add any element please insert between
+ // RxPWDBAll & SignalStrength.
+ //
+#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN))
+ u4Byte RxPWDBAll;
+#else
+ u1Byte RxPWDBAll;
+#endif
+
+ u1Byte SignalQuality; // in 0-100 index.
+ s1Byte RxMIMOSignalQuality[4]; //per-path's EVM
+ u1Byte RxMIMOEVMdbm[4]; //per-path's EVM dbm
+
+ u1Byte RxMIMOSignalStrength[4];// in 0~100 index
+
+ u2Byte Cfo_short[4]; // per-path's Cfo_short
+ u2Byte Cfo_tail[4]; // per-path's Cfo_tail
+
+#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN|ODM_CE))
+ s1Byte RxPower; // in dBm Translate from PWdB
+ s1Byte RecvSignalPower; // Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures.
+ u1Byte BTRxRSSIPercentage;
+ u1Byte SignalStrength; // in 0-100 index.
+
+ u1Byte RxPwr[4]; //per-path's pwdb
+#endif
+ u1Byte RxSNR[4]; //per-path's SNR
+ u1Byte BandWidth;
+ u1Byte btCoexPwrAdjust;
+}ODM_PHY_INFO_T,*PODM_PHY_INFO_T;
+*/
+
+struct phy_info
+{
+ u8 RxPWDBAll;
+ u8 SignalQuality; /* in 0-100 index. */
+ s8 RxMIMOSignalQuality[4]; /* per-path's EVM */
+ u8 RxMIMOEVMdbm[4]; /* per-path's EVM dbm */
+ u8 RxMIMOSignalStrength[4]; /* in 0~100 index */
+ s16 Cfo_short[4]; /* per-path's Cfo_short */
+ s16 Cfo_tail[4]; /* per-path's Cfo_tail */
+ s8 RxPower; /* in dBm Translate from PWdB */
+ s8 RecvSignalPower; /* Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
+ u8 BTRxRSSIPercentage;
+ u8 SignalStrength; /* in 0-100 index. */
+ s8 RxPwr[4]; /* per-path's pwdb */
+ s8 RxSNR[4];
+#if (RTL8822B_SUPPORT == 1)
+ u8 RxCount:2;
+ u8 BandWidth:2;
+ u8 rxsc:4;
+#else
+ u8 BandWidth;
+#endif
+ u8 btCoexPwrAdjust;
+#if (RTL8822B_SUPPORT == 1)
+ u8 channel; /* channel number---*/
+ BOOLEAN bMuPacket; /* is MU packet or not---*/
+ BOOLEAN bBeamformed;
+#endif
+};
+
+#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
+struct rx_raw_rssi
+{
+ u8 data_rate;
+ u8 pwdball;
+ s8 pwr_all;
+
+ u8 mimo_signal_strength[4];/* in 0~100 index */
+ u8 mimo_signal_quality[4];
+
+ s8 ofdm_pwr[4];
+ u8 ofdm_snr[4];
+
+};
+#endif
+
+struct rx_pkt_attrib {
+ u16 pkt_len;
+ u8 physt;
+ u8 drvinfo_sz;
+ u8 shift_sz;
+ u8 hdrlen; //the WLAN Header Len
+ u8 to_fr_ds;
+ u8 amsdu;
+ u8 qos;
+ u8 priority;
+ u8 pw_save;
+ u8 mdata;
+ u16 seq_num;
+ u8 frag_num;
+ u8 mfrag;
+ u8 order;
+ u8 privacy; //in frame_ctrl field
+ u8 bdecrypted;
+ u8 encrypt; //when 0 indicate no encrypt. when non-zero, indicate the encrypt algorith
+ u8 iv_len;
+ u8 icv_len;
+ u8 crc_err;
+ u8 icv_err;
+
+ u16 eth_type;
+
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ u8 ta[ETH_ALEN];
+ u8 ra[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+
+ u8 ack_policy;
+
+//#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
+ u8 tcpchk_valid; // 0: invalid, 1: valid
+ u8 ip_chkrpt; //0: incorrect, 1: correct
+ u8 tcp_chkrpt; //0: incorrect, 1: correct
+//#endif
+ u8 key_index;
+
+ u8 data_rate;
+ u8 bw;
+ u8 stbc;
+ u8 ldpc;
+ u8 sgi;
+ u8 pkt_rpt_type;
+ u32 tsfl;
+ u32 MacIDValidEntry[2]; // 64 bits present 64 entry.
+
+/*
+ u8 signal_qual;
+ s8 rx_mimo_signal_qual[2];
+ u8 signal_strength;
+ u32 RxPWDBAll;
+ s32 RecvSignalPower;
+*/
+ struct phy_info phy_info;
+};
+
+
+//These definition is used for Rx packet reordering.
+#define SN_LESS(a, b) (((a-b)&0x800)!=0)
+#define SN_EQUAL(a, b) (a == b)
+//#define REORDER_WIN_SIZE 128
+//#define REORDER_ENTRY_NUM 128
+#define REORDER_WAIT_TIME (50) // (ms)
+
+#define RECVBUFF_ALIGN_SZ 8
+
+#if defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A)
+ #ifdef CONFIG_PCI_HCI
+ #define RXDESC_SIZE 16
+ #define RX_WIFI_INFO_SIZE 24
+ #else
+ #define RXDESC_SIZE 24
+ #endif
+#else
+#define RXDESC_SIZE 24
+#endif
+#define RXDESC_OFFSET RXDESC_SIZE
+
+struct recv_stat
+{
+ unsigned int rxdw0;
+
+ unsigned int rxdw1;
+
+#if !((defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A)) && defined(CONFIG_PCI_HCI)) /* exclude 8192ee, 8814ae */
+ unsigned int rxdw2;
+
+ unsigned int rxdw3;
+#endif
+
+#ifndef BUF_DESC_ARCH
+ unsigned int rxdw4;
+
+ unsigned int rxdw5;
+
+#ifdef CONFIG_PCI_HCI
+ unsigned int rxdw6;
+
+ unsigned int rxdw7;
+#endif
+#endif //if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words
+};
+
+#define EOR BIT(30)
+
+#ifdef CONFIG_PCI_HCI
+#define PCI_MAX_RX_QUEUE 1// MSDU packet queue, Rx Command Queue
+#define PCI_MAX_RX_COUNT 128
+
+struct rtw_rx_ring {
+ struct recv_stat *desc;
+ dma_addr_t dma;
+ unsigned int idx;
+ struct sk_buff *rx_buf[PCI_MAX_RX_COUNT];
+};
+#endif
+
+
+
+/*
+accesser of recv_priv: rtw_recv_entry(dispatch / passive level); recv_thread(passive) ; returnpkt(dispatch)
+; halt(passive) ;
+
+using enter_critical section to protect
+*/
+struct recv_priv
+{
+ _lock lock;
+
+#ifdef CONFIG_RECV_THREAD_MODE
+ _sema recv_sema;
+ _sema terminate_recvthread_sema;
+#endif
+
+ //_queue blk_strms[MAX_RX_NUMBLKS]; // keeping the block ack frame until return ack
+ _queue free_recv_queue;
+ _queue recv_pending_queue;
+ _queue uc_swdec_pending_queue;
+
+
+ u8 *pallocated_frame_buf;
+ u8 *precv_frame_buf;
+
+ uint free_recvframe_cnt;
+
+ _adapter *adapter;
+
+#ifdef PLATFORM_WINDOWS
+ _nic_hdl RxPktPoolHdl;
+ _nic_hdl RxBufPoolHdl;
+
+#ifdef PLATFORM_OS_XP
+ PMDL pbytecnt_mdl;
+#endif
+ uint counter; //record the number that up-layer will return to drv; only when counter==0 can we release recv_priv
+ NDIS_EVENT recv_resource_evt ;
+#endif
+
+ u32 bIsAnyNonBEPkts;
+ u64 rx_bytes;
+ u64 rx_pkts;
+ u64 rx_drop;
+
+ uint rx_icv_err;
+ uint rx_largepacket_crcerr;
+ uint rx_smallpacket_crcerr;
+ uint rx_middlepacket_crcerr;
+
+#ifdef CONFIG_USB_HCI
+ //u8 *pallocated_urb_buf;
+ _sema allrxreturnevt;
+ uint ff_hwaddr;
+ ATOMIC_T rx_pending_cnt;
+
+#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
+#ifdef PLATFORM_LINUX
+ PURB int_in_urb;
+#endif
+
+ u8 *int_in_buf;
+#endif //CONFIG_USB_INTERRUPT_IN_PIPE
+
+#endif
+#if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
+#ifdef PLATFORM_FREEBSD
+ struct task irq_prepare_beacon_tasklet;
+ struct task recv_tasklet;
+#else //PLATFORM_FREEBSD
+ struct tasklet_struct irq_prepare_beacon_tasklet;
+ struct tasklet_struct recv_tasklet;
+#endif //PLATFORM_FREEBSD
+ struct sk_buff_head free_recv_skb_queue;
+ struct sk_buff_head rx_skb_queue;
+#ifdef CONFIG_RX_INDICATE_QUEUE
+ struct task rx_indicate_tasklet;
+ struct ifqueue rx_indicate_queue;
+#endif // CONFIG_RX_INDICATE_QUEUE
+
+#endif //defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
+
+ u8 *pallocated_recv_buf;
+ u8 *precv_buf; // 4 alignment
+ _queue free_recv_buf_queue;
+ u32 free_recv_buf_queue_cnt;
+
+#if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) || defined(CONFIG_USB_HCI)
+ _queue recv_buf_pending_queue;
+#endif
+
+#ifdef CONFIG_PCI_HCI
+ // Rx
+ struct rtw_rx_ring rx_ring[PCI_MAX_RX_QUEUE];
+ int rxringcount;
+ u16 rxbuffersize;
+#endif
+
+ //For display the phy informatiom
+ u8 is_signal_dbg; // for debug
+ u8 signal_strength_dbg; // for debug
+
+ u8 signal_strength;
+ u8 signal_qual;
+ s8 rssi; //translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
+ #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
+ struct rx_raw_rssi raw_rssi_info;
+ #endif
+ //s8 rxpwdb;
+ s16 noise;
+ //int RxSNRdB[2];
+ //s8 RxRssi[2];
+ //int FalseAlmCnt_all;
+
+
+#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
+ _timer signal_stat_timer;
+ u32 signal_stat_sampling_interval;
+ //u32 signal_stat_converging_constant;
+ struct signal_stat signal_qual_data;
+ struct signal_stat signal_strength_data;
+#else //CONFIG_NEW_SIGNAL_STAT_PROCESS
+ struct smooth_rssi_data signal_qual_data;
+ struct smooth_rssi_data signal_strength_data;
+#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
+ u16 sink_udpport,pre_rtp_rxseq,cur_rtp_rxseq;
+};
+
+#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
+#define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
+#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
+
+struct sta_recv_priv {
+
+ _lock lock;
+ sint option;
+
+ //_queue blk_strms[MAX_RX_NUMBLKS];
+ _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;
+
+};
+
+
+struct recv_buf
+{
+ _list list;
+
+ _lock recvbuf_lock;
+
+ u32 ref_cnt;
+
+ PADAPTER adapter;
+
+ u8 *pbuf;
+ u8 *pallocated_buf;
+
+ u32 len;
+ u8 *phead;
+ u8 *pdata;
+ u8 *ptail;
+ u8 *pend;
+
+#ifdef CONFIG_USB_HCI
+
+ #if defined(PLATFORM_OS_XP)||defined(PLATFORM_LINUX)||defined(PLATFORM_FREEBSD)
+ PURB purb;
+ dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */
+ u32 alloc_sz;
+ #endif
+
+ #ifdef PLATFORM_OS_XP
+ PIRP pirp;
+ #endif
+
+ #ifdef PLATFORM_OS_CE
+ USB_TRANSFER usb_transfer_read_port;
+ #endif
+
+ u8 irp_pending;
+ int transfer_len;
+
+#endif
+
+#ifdef PLATFORM_LINUX
+ _pkt *pskb;
+#endif
+#ifdef PLATFORM_FREEBSD //skb solution
+ struct sk_buff *pskb;
+#endif //PLATFORM_FREEBSD //skb solution
+};
+
+
+/*
+ head ----->
+
+ data ----->
+
+ payload
+
+ tail ----->
+
+
+ end ----->
+
+ len = (unsigned int )(tail - data);
+
+*/
+struct recv_frame_hdr
+{
+ _list list;
+#ifndef CONFIG_BSD_RX_USE_MBUF
+ struct sk_buff *pkt;
+ struct sk_buff *pkt_newalloc;
+#else // CONFIG_BSD_RX_USE_MBUF
+ _pkt *pkt;
+ _pkt *pkt_newalloc;
+#endif // CONFIG_BSD_RX_USE_MBUF
+
+ _adapter *adapter;
+
+ u8 fragcnt;
+
+ int frame_tag;
+
+ struct rx_pkt_attrib attrib;
+
+ uint len;
+ u8 *rx_head;
+ u8 *rx_data;
+ u8 *rx_tail;
+ u8 *rx_end;
+
+ void *precvbuf;
+
+
+ //
+ struct sta_info *psta;
+
+ //for A-MPDU Rx reordering buffer control
+ struct recv_reorder_ctrl *preorder_ctrl;
+
+#ifdef CONFIG_WAPI_SUPPORT
+ u8 UserPriority;
+ u8 WapiTempPN[16];
+ u8 WapiSrcAddr[6];
+ u8 bWapiCheckPNInDecrypt;
+ u8 bIsWaiPacket;
+#endif
+
+};
+
+
+union recv_frame{
+
+ union{
+ _list list;
+ struct recv_frame_hdr hdr;
+ uint mem[RECVFRAME_HDR_ALIGN>>2];
+ }u;
+
+ //uint mem[MAX_RXSZ>>2];
+
+};
+
+bool rtw_rframe_del_wfd_ie(union recv_frame *rframe, u8 ies_offset);
+
+typedef enum _RX_PACKET_TYPE{
+ NORMAL_RX,//Normal rx packet
+ TX_REPORT1,//CCX
+ TX_REPORT2,//TX RPT
+ HIS_REPORT,// USB HISR RPT
+ C2H_PACKET
+}RX_PACKET_TYPE, *PRX_PACKET_TYPE;
+
+extern union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
+extern union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
+extern void rtw_init_recvframe(union recv_frame *precvframe ,struct recv_priv *precvpriv);
+extern int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue);
+
+#define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
+extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
+extern int rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
+
+extern void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue);
+u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter);
+
+sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue);
+sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue);
+struct recv_buf *rtw_dequeue_recvbuf (_queue *queue);
+
+void rtw_reordering_ctrl_timeout_handler(void *pcontext);
+
+void rx_query_phy_status(union recv_frame *rframe, u8 *phy_stat);
+int rtw_inc_and_chk_continual_no_rx_packet(struct sta_info *sta, int tid_index);
+void rtw_reset_continual_no_rx_packet(struct sta_info *sta, int tid_index);
+
+__inline static u8 *get_rxmem(union recv_frame *precvframe)
+{
+ //always return rx_head...
+ if(precvframe==NULL)
+ return NULL;
+
+ return precvframe->u.hdr.rx_head;
+}
+
+__inline static u8 *get_rx_status(union recv_frame *precvframe)
+{
+
+ return get_rxmem(precvframe);
+
+}
+
+__inline static u8 *get_recvframe_data(union recv_frame *precvframe)
+{
+
+ //alwasy return rx_data
+ if(precvframe==NULL)
+ return NULL;
+
+ return precvframe->u.hdr.rx_data;
+
+}
+
+__inline static 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;
+
+}
+
+
+__inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
+{
+ // rx_data += sz; move rx_data sz bytes hereafter
+
+ //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;
+
+}
+
+__inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
+{
+ // rx_tai += sz; move rx_tail sz bytes hereafter
+
+ //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;
+
+ /* DBG_871X("recvframe_put: len=%d\n", sz); */
+
+ 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;
+
+}
+
+
+
+__inline static 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;
+
+}
+
+
+
+__inline static _buffer * get_rxbuf_desc(union recv_frame *precvframe)
+{
+ _buffer * buf_desc;
+
+ if(precvframe==NULL)
+ return NULL;
+#ifdef PLATFORM_WINDOWS
+ NdisQueryPacket(precvframe->u.hdr.pkt, NULL, NULL, &buf_desc, NULL);
+#endif
+
+ return buf_desc;
+}
+
+
+__inline static 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*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
+
+}
+
+__inline static union recv_frame *pkt_to_recvframe(_pkt *pkt)
+{
+
+ u8 * buf_star;
+ union recv_frame * precv_frame;
+#ifdef PLATFORM_WINDOWS
+ _buffer * buf_desc;
+ uint len;
+
+ NdisQueryPacket(pkt, NULL, NULL, &buf_desc, &len);
+ NdisQueryBufferSafe(buf_desc, &buf_star, &len, HighPagePriority);
+#endif
+ precv_frame = rxmem_to_recvframe((unsigned char*)buf_star);
+
+ return precv_frame;
+}
+
+__inline static 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;
+
+}
+
+__inline static 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;
+
+}
+
+
+__inline static sint get_recvframe_len(union recv_frame *precvframe)
+{
+ return precvframe->u.hdr.len;
+}
+
+
+__inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
+{
+ s32 SignalPower; // in dBm.
+
+#ifdef CONFIG_SIGNAL_SCALE_MAPPING
+ /* Translate to dBm (x=0.5y-95). */
+ SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
+ SignalPower -= 95;
+#else
+ /* Translate to dBm (x=y-100) */
+ SignalPower = SignalStrengthIndex - 100;
+#endif
+
+ return SignalPower;
+}
+
+
+struct sta_info;
+
+extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
+
+extern void mgt_dispatcher(_adapter *padapter, union recv_frame *precv_frame);
+
+#endif
OSDN Git Service
