/******************************************************************************
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*
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* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#ifndef _RTW_RECV_H_
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#define _RTW_RECV_H_
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#ifdef PLATFORM_OS_XP
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#ifdef CONFIG_SDIO_HCI
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#define NR_RECVBUFF 1024/* 512 */ /* 128 */
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#else
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#define NR_RECVBUFF (16)
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#endif
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#elif defined(PLATFORM_OS_CE)
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#ifdef CONFIG_SDIO_HCI
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#define NR_RECVBUFF (128)
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#else
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#define NR_RECVBUFF (4)
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#endif
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#else /* PLATFORM_LINUX /PLATFORM_BSD */
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#ifdef CONFIG_SINGLE_RECV_BUF
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#define NR_RECVBUFF (1)
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#else
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#if defined(CONFIG_GSPI_HCI)
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#define NR_RECVBUFF (32)
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#elif defined(CONFIG_SDIO_HCI)
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#define NR_RECVBUFF (8)
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#else
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#define NR_RECVBUFF (8)
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#endif
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#endif /* CONFIG_SINGLE_RECV_BUF */
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#ifdef CONFIG_PREALLOC_RX_SKB_BUFFER
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#define NR_PREALLOC_RECV_SKB (rtw_rtkm_get_nr_recv_skb()>>1)
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#else /*!CONFIG_PREALLOC_RX_SKB_BUFFER */
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#define NR_PREALLOC_RECV_SKB 8
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#endif /* CONFIG_PREALLOC_RX_SKB_BUFFER */
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#ifdef CONFIG_RTW_NAPI
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#define RTL_NAPI_WEIGHT (32)
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#endif
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#endif
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#define NR_RECVFRAME 256
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#define RXFRAME_ALIGN 8
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#define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN)
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#define DRVINFO_SZ 4 /* unit is 8bytes */
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#define MAX_RXFRAME_CNT 512
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#define MAX_RX_NUMBLKS (32)
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#define RECVFRAME_HDR_ALIGN 128
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#define MAX_CONTINUAL_NORXPACKET_COUNT 4 /* In MAX_CONTINUAL_NORXPACKET_COUNT*2 sec , no rx traffict would issue DELBA*/
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#define PHY_RSSI_SLID_WIN_MAX 100
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#define PHY_LINKQUALITY_SLID_WIN_MAX 20
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#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
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#define RX_MPDU_QUEUE 0
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#define RX_CMD_QUEUE 1
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#define RX_MAX_QUEUE 2
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static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
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static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
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static u8 SNAP_ETH_TYPE_APPLETALK_DDP[2] = {0x80, 0x9b};
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static u8 SNAP_ETH_TYPE_TDLS[2] = {0x89, 0x0d};
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static u8 SNAP_HDR_APPLETALK_DDP[3] = {0x08, 0x00, 0x07}; /* Datagram Delivery Protocol */
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static u8 oui_8021h[] = {0x00, 0x00, 0xf8};
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static u8 oui_rfc1042[] = {0x00, 0x00, 0x00};
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#define MAX_SUBFRAME_COUNT 64
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static u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
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/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
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static u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
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/* for Rx reordering buffer control */
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struct recv_reorder_ctrl {
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_adapter *padapter;
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u8 enable;
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u16 indicate_seq;/* =wstart_b, init_value=0xffff */
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u16 wend_b;
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u8 wsize_b;
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u8 ampdu_size;
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_queue pending_recvframe_queue;
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_timer reordering_ctrl_timer;
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u8 bReorderWaiting;
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};
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struct stainfo_rxcache {
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u16 tid_rxseq[16];
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u8 iv[16][8];
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#if 0
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unsigned short tid0_rxseq;
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unsigned short tid1_rxseq;
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unsigned short tid2_rxseq;
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unsigned short tid3_rxseq;
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unsigned short tid4_rxseq;
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unsigned short tid5_rxseq;
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unsigned short tid6_rxseq;
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unsigned short tid7_rxseq;
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unsigned short tid8_rxseq;
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unsigned short tid9_rxseq;
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unsigned short tid10_rxseq;
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unsigned short tid11_rxseq;
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unsigned short tid12_rxseq;
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unsigned short tid13_rxseq;
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unsigned short tid14_rxseq;
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unsigned short tid15_rxseq;
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#endif
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};
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struct smooth_rssi_data {
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u32 elements[100]; /* array to store values */
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u32 index; /* index to current array to store */
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u32 total_num; /* num of valid elements */
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u32 total_val; /* sum of valid elements */
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};
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struct signal_stat {
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u8 update_req; /* used to indicate */
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u8 avg_val; /* avg of valid elements */
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u32 total_num; /* num of valid elements */
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u32 total_val; /* sum of valid elements */
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};
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#if 0
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typedef struct _ODM_Phy_Status_Info_ {
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/* */
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/* Be care, if you want to add any element please insert between */
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/* RxPWDBAll & SignalStrength. */
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/* */
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN))
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u4Byte RxPWDBAll;
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#else
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u1Byte RxPWDBAll;
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#endif
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u1Byte SignalQuality; /* in 0-100 index. */
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s1Byte RxMIMOSignalQuality[4]; /* per-path's EVM */
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u1Byte RxMIMOEVMdbm[4]; /* per-path's EVM dbm */
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u1Byte RxMIMOSignalStrength[4];/* in 0~100 index */
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u2Byte Cfo_short[4]; /* per-path's Cfo_short */
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u2Byte Cfo_tail[4]; /* per-path's Cfo_tail */
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN|ODM_CE))
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s1Byte RxPower; /* in dBm Translate from PWdB */
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s1Byte RecvSignalPower; /* Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
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u1Byte BTRxRSSIPercentage;
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u1Byte SignalStrength; /* in 0-100 index. */
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u1Byte RxPwr[4]; /* per-path's pwdb */
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#endif
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u1Byte RxSNR[4]; /* per-path's SNR */
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u1Byte BandWidth;
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u1Byte btCoexPwrAdjust;
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} ODM_PHY_INFO_T, *PODM_PHY_INFO_T;
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#endif
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struct phy_info {
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u8 RxPWDBAll;
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u8 SignalQuality; /* in 0-100 index. */
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s8 RxMIMOSignalQuality[4]; /* per-path's EVM */
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u8 RxMIMOEVMdbm[4]; /* per-path's EVM dbm */
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u8 RxMIMOSignalStrength[4]; /* in 0~100 index */
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s16 Cfo_short[4]; /* per-path's Cfo_short */
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s16 Cfo_tail[4]; /* per-path's Cfo_tail */
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s8 RxPower; /* in dBm Translate from PWdB */
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s8 RecvSignalPower; /* Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
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u8 BTRxRSSIPercentage;
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u8 SignalStrength; /* in 0-100 index. */
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s8 RxPwr[4]; /* per-path's pwdb */
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s8 RxSNR[4];
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#if ((RTL8822B_SUPPORT == 1) || (RTL8723D_SUPPORT == 1) || (RTL8821C_SUPPORT == 1))
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u8 RxCount:2;
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u8 BandWidth:2;
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u8 rxsc:4;
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#else
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u8 BandWidth;
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#endif
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u8 btCoexPwrAdjust;
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#if ((RTL8822B_SUPPORT == 1) || (RTL8723D_SUPPORT == 1) || (RTL8821C_SUPPORT == 1))
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u8 channel; /* channel number---*/
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BOOLEAN bMuPacket; /* is MU packet or not---*/
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BOOLEAN bBeamformed;
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#endif
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};
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struct rx_raw_rssi {
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u8 data_rate;
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u8 pwdball;
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s8 pwr_all;
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u8 mimo_signal_strength[4];/* in 0~100 index */
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u8 mimo_signal_quality[4];
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s8 ofdm_pwr[4];
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u8 ofdm_snr[4];
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};
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struct rx_pkt_attrib {
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u16 pkt_len;
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u8 physt;
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u8 drvinfo_sz;
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u8 shift_sz;
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u8 hdrlen; /* the WLAN Header Len */
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u8 to_fr_ds;
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u8 amsdu;
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u8 qos;
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u8 priority;
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u8 pw_save;
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u8 mdata;
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u16 seq_num;
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u8 frag_num;
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u8 mfrag;
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u8 order;
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u8 privacy; /* in frame_ctrl field */
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u8 bdecrypted;
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u8 encrypt; /* when 0 indicate no encrypt. when non-zero, indicate the encrypt algorith */
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u8 iv_len;
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u8 icv_len;
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u8 crc_err;
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u8 icv_err;
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u16 eth_type;
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u8 dst[ETH_ALEN];
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u8 src[ETH_ALEN];
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u8 ta[ETH_ALEN];
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u8 ra[ETH_ALEN];
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u8 bssid[ETH_ALEN];
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u8 ack_policy;
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/* #ifdef CONFIG_TCP_CSUM_OFFLOAD_RX */
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u8 tcpchk_valid; /* 0: invalid, 1: valid */
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u8 ip_chkrpt; /* 0: incorrect, 1: correct */
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u8 tcp_chkrpt; /* 0: incorrect, 1: correct */
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/* #endif */
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u8 key_index;
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u8 data_rate;
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u8 ch; /* RX channel */
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u8 bw;
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u8 stbc;
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u8 ldpc;
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u8 sgi;
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u8 pkt_rpt_type;
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u32 tsfl;
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u32 MacIDValidEntry[2]; /* 64 bits present 64 entry. */
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#if 0
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u8 signal_qual;
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s8 rx_mimo_signal_qual[2];
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u8 signal_strength;
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u32 RxPWDBAll;
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s32 RecvSignalPower;
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#endif
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struct phy_info phy_info;
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};
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/* These definition is used for Rx packet reordering. */
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#define SN_LESS(a, b) (((a-b) & 0x800) != 0)
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#define SN_EQUAL(a, b) (a == b)
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/* #define REORDER_WIN_SIZE 128 */
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/* #define REORDER_ENTRY_NUM 128 */
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#define REORDER_WAIT_TIME (50) /* (ms) */
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#define RECVBUFF_ALIGN_SZ 8
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#ifdef CONFIG_TRX_BD_ARCH
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#define RX_WIFI_INFO_SIZE 24
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#elif (defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A) || defined(CONFIG_RTL8822B)) && defined(CONFIG_PCI_HCI)
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#define RXBD_SIZE sizeof(struct recv_stat)
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#endif
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#define RXDESC_SIZE 24
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#define RXDESC_OFFSET RXDESC_SIZE
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#ifdef CONFIG_TRX_BD_ARCH
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struct rx_buf_desc {
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/* RX has exactly one segment */
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#ifdef CONFIG_64BIT_DMA
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unsigned int dword[4];
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#else
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unsigned int dword[2];
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#endif
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};
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struct recv_stat {
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unsigned int rxdw[8];
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};
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#else
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struct recv_stat {
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unsigned int rxdw0;
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unsigned int rxdw1;
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#if !((defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A) || defined(CONFIG_RTL8822B) || defined(CONFIG_RTL8821C)) && defined(CONFIG_PCI_HCI)) /* exclude 8192ee, 8814ae, 8822be, 8821ce */
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unsigned int rxdw2;
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unsigned int rxdw3;
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#endif
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#ifndef BUF_DESC_ARCH
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unsigned int rxdw4;
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unsigned int rxdw5;
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#ifdef CONFIG_PCI_HCI
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unsigned int rxdw6;
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unsigned int rxdw7;
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#endif
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#endif /* if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words */
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};
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#endif
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#define EOR BIT(30)
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#ifdef CONFIG_PCI_HCI
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#define PCI_MAX_RX_QUEUE 1/* MSDU packet queue, Rx Command Queue */
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#define PCI_MAX_RX_COUNT 128
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#ifdef CONFIG_TRX_BD_ARCH
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#define RX_BD_NUM PCI_MAX_RX_COUNT /* alias */
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#endif
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struct rtw_rx_ring {
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#ifdef CONFIG_TRX_BD_ARCH
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struct rx_buf_desc *buf_desc;
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#else
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struct recv_stat *desc;
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#endif
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dma_addr_t dma;
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unsigned int idx;
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struct sk_buff *rx_buf[PCI_MAX_RX_COUNT];
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};
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#endif
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/*
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accesser of recv_priv: rtw_recv_entry(dispatch / passive level); recv_thread(passive) ; returnpkt(dispatch)
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; halt(passive) ;
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using enter_critical section to protect
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*/
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struct recv_priv {
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_lock lock;
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#ifdef CONFIG_RECV_THREAD_MODE
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_sema recv_sema;
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_sema terminate_recvthread_sema;
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#endif
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/* _queue blk_strms[MAX_RX_NUMBLKS]; */ /* keeping the block ack frame until return ack */
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_queue free_recv_queue;
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_queue recv_pending_queue;
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_queue uc_swdec_pending_queue;
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u8 *pallocated_frame_buf;
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u8 *precv_frame_buf;
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uint free_recvframe_cnt;
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_adapter *adapter;
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#ifdef PLATFORM_WINDOWS
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_nic_hdl RxPktPoolHdl;
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_nic_hdl RxBufPoolHdl;
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#ifdef PLATFORM_OS_XP
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PMDL pbytecnt_mdl;
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#endif
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uint counter; /* record the number that up-layer will return to drv; only when counter==0 can we release recv_priv */
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NDIS_EVENT recv_resource_evt ;
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#endif
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u32 is_any_non_be_pkts;
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u64 rx_bytes;
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u64 rx_pkts;
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u64 rx_drop;
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uint rx_icv_err;
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uint rx_largepacket_crcerr;
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uint rx_smallpacket_crcerr;
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uint rx_middlepacket_crcerr;
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#ifdef CONFIG_USB_HCI
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/* u8 *pallocated_urb_buf; */
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_sema allrxreturnevt;
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uint ff_hwaddr;
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ATOMIC_T rx_pending_cnt;
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#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
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#ifdef PLATFORM_LINUX
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PURB int_in_urb;
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#endif
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u8 *int_in_buf;
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#endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
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#endif
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#if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
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#ifdef PLATFORM_FREEBSD
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struct task irq_prepare_beacon_tasklet;
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struct task recv_tasklet;
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#else /* PLATFORM_FREEBSD */
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struct tasklet_struct irq_prepare_beacon_tasklet;
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struct tasklet_struct recv_tasklet;
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#endif /* PLATFORM_FREEBSD */
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struct sk_buff_head free_recv_skb_queue;
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struct sk_buff_head rx_skb_queue;
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#ifdef CONFIG_RTW_NAPI
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struct sk_buff_head rx_napi_skb_queue;
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#endif
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#ifdef CONFIG_RX_INDICATE_QUEUE
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struct task rx_indicate_tasklet;
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struct ifqueue rx_indicate_queue;
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#endif /* CONFIG_RX_INDICATE_QUEUE */
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#endif /* defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) */
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u8 *pallocated_recv_buf;
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u8 *precv_buf; /* 4 alignment */
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_queue free_recv_buf_queue;
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u32 free_recv_buf_queue_cnt;
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#if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) || defined(CONFIG_USB_HCI)
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_queue recv_buf_pending_queue;
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#endif
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#ifdef CONFIG_PCI_HCI
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/* Rx */
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struct rtw_rx_ring rx_ring[PCI_MAX_RX_QUEUE];
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int rxringcount; /* size should be PCI_MAX_RX_QUEUE */
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u16 rxbuffersize;
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#endif
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/* For display the phy informatiom */
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u8 is_signal_dbg; /* for debug */
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u8 signal_strength_dbg; /* for debug */
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u8 signal_strength;
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u8 signal_qual;
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s8 rssi; /* translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength); */
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struct rx_raw_rssi raw_rssi_info;
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/* s8 rxpwdb; */
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s16 noise;
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/* int RxSNRdB[2]; */
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/* s8 RxRssi[2]; */
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/* int FalseAlmCnt_all; */
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#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
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_timer signal_stat_timer;
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u32 signal_stat_sampling_interval;
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/* u32 signal_stat_converging_constant; */
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struct signal_stat signal_qual_data;
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struct signal_stat signal_strength_data;
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#else /* CONFIG_NEW_SIGNAL_STAT_PROCESS */
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struct smooth_rssi_data signal_qual_data;
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struct smooth_rssi_data signal_strength_data;
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#endif /* CONFIG_NEW_SIGNAL_STAT_PROCESS */
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u16 sink_udpport, pre_rtp_rxseq, cur_rtp_rxseq;
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BOOLEAN store_law_data_flag;
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};
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#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
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#define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
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#endif /* CONFIG_NEW_SIGNAL_STAT_PROCESS */
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struct sta_recv_priv {
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_lock lock;
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sint option;
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/* _queue blk_strms[MAX_RX_NUMBLKS]; */
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_queue defrag_q; /* keeping the fragment frame until defrag */
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struct stainfo_rxcache rxcache;
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/* uint sta_rx_bytes; */
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/* uint sta_rx_pkts; */
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/* uint sta_rx_fail; */
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};
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struct recv_buf {
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_list list;
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_lock recvbuf_lock;
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u32 ref_cnt;
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PADAPTER adapter;
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u8 *pbuf;
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u8 *pallocated_buf;
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u32 len;
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u8 *phead;
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u8 *pdata;
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u8 *ptail;
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u8 *pend;
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#ifdef CONFIG_USB_HCI
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#if defined(PLATFORM_OS_XP) || defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
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PURB purb;
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dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */
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u32 alloc_sz;
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#endif
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#ifdef PLATFORM_OS_XP
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PIRP pirp;
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#endif
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#ifdef PLATFORM_OS_CE
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USB_TRANSFER usb_transfer_read_port;
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#endif
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u8 irp_pending;
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int transfer_len;
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#endif
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#ifdef PLATFORM_LINUX
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_pkt *pskb;
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#endif
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#ifdef PLATFORM_FREEBSD /* skb solution */
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struct sk_buff *pskb;
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#endif /* PLATFORM_FREEBSD */ /* skb solution */
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};
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/*
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head ----->
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data ----->
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payload
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tail ----->
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end ----->
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len = (unsigned int )(tail - data);
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*/
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struct recv_frame_hdr {
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_list list;
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#ifndef CONFIG_BSD_RX_USE_MBUF
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struct sk_buff *pkt;
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struct sk_buff *pkt_newalloc;
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#else /* CONFIG_BSD_RX_USE_MBUF */
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_pkt *pkt;
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_pkt *pkt_newalloc;
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#endif /* CONFIG_BSD_RX_USE_MBUF */
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_adapter *adapter;
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u8 fragcnt;
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int frame_tag;
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struct rx_pkt_attrib attrib;
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uint len;
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u8 *rx_head;
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u8 *rx_data;
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u8 *rx_tail;
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u8 *rx_end;
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void *precvbuf;
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/* */
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struct sta_info *psta;
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/* for A-MPDU Rx reordering buffer control */
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struct recv_reorder_ctrl *preorder_ctrl;
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#ifdef CONFIG_WAPI_SUPPORT
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u8 UserPriority;
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u8 WapiTempPN[16];
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u8 WapiSrcAddr[6];
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u8 bWapiCheckPNInDecrypt;
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u8 bIsWaiPacket;
|
#endif
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};
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union recv_frame {
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union {
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_list list;
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struct recv_frame_hdr hdr;
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uint mem[RECVFRAME_HDR_ALIGN >> 2];
|
} u;
|
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/* uint mem[MAX_RXSZ>>2]; */
|
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};
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bool rtw_rframe_del_wfd_ie(union recv_frame *rframe, u8 ies_offset);
|
|
typedef enum _RX_PACKET_TYPE {
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NORMAL_RX,/* Normal rx packet */
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TX_REPORT1,/* CCX */
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TX_REPORT2,/* TX RPT */
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HIS_REPORT,/* USB HISR RPT */
|
C2H_PACKET
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} RX_PACKET_TYPE, *PRX_PACKET_TYPE;
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extern union recv_frame *_rtw_alloc_recvframe(_queue *pfree_recv_queue); /* get a free recv_frame from pfree_recv_queue */
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extern union recv_frame *rtw_alloc_recvframe(_queue *pfree_recv_queue); /* get a free recv_frame from pfree_recv_queue */
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extern void rtw_init_recvframe(union recv_frame *precvframe , struct recv_priv *precvpriv);
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extern int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue);
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#define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
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extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
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extern int rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
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extern void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue);
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u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter);
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sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue);
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sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue);
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struct recv_buf *rtw_dequeue_recvbuf(_queue *queue);
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void rtw_reordering_ctrl_timeout_handler(void *pcontext);
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void rx_query_phy_status(union recv_frame *rframe, u8 *phy_stat);
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int rtw_inc_and_chk_continual_no_rx_packet(struct sta_info *sta, int tid_index);
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void rtw_reset_continual_no_rx_packet(struct sta_info *sta, int tid_index);
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#ifdef CONFIG_RECV_THREAD_MODE
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thread_return rtw_recv_thread(thread_context context);
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#endif
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__inline static u8 *get_rxmem(union recv_frame *precvframe)
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{
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/* always return rx_head... */
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if (precvframe == NULL)
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return NULL;
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return precvframe->u.hdr.rx_head;
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}
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__inline static u8 *get_rx_status(union recv_frame *precvframe)
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{
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return get_rxmem(precvframe);
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}
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__inline static u8 *get_recvframe_data(union recv_frame *precvframe)
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{
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/* alwasy return rx_data */
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if (precvframe == NULL)
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return NULL;
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return precvframe->u.hdr.rx_data;
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}
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__inline static u8 *recvframe_push(union recv_frame *precvframe, sint sz)
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{
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/* append data before rx_data */
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/* add data to the start of recv_frame
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*
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* This function extends the used data area of the recv_frame at the buffer
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* start. rx_data must be still larger than rx_head, after pushing.
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*/
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if (precvframe == NULL)
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return NULL;
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precvframe->u.hdr.rx_data -= sz ;
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if (precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head) {
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precvframe->u.hdr.rx_data += sz ;
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return NULL;
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}
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precvframe->u.hdr.len += sz;
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return precvframe->u.hdr.rx_data;
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}
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__inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
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{
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/* rx_data += sz; move rx_data sz bytes hereafter */
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/* used for extract sz bytes from rx_data, update rx_data and return the updated rx_data to the caller */
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if (precvframe == NULL)
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return NULL;
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precvframe->u.hdr.rx_data += sz;
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if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) {
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precvframe->u.hdr.rx_data -= sz;
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return NULL;
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}
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precvframe->u.hdr.len -= sz;
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return precvframe->u.hdr.rx_data;
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}
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__inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
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{
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/* rx_tai += sz; move rx_tail sz bytes hereafter */
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/* used for append sz bytes from ptr to rx_tail, update rx_tail and return the updated rx_tail to the caller */
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/* after putting, rx_tail must be still larger than rx_end. */
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unsigned char *prev_rx_tail;
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/* RTW_INFO("recvframe_put: len=%d\n", sz); */
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if (precvframe == NULL)
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return NULL;
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prev_rx_tail = precvframe->u.hdr.rx_tail;
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precvframe->u.hdr.rx_tail += sz;
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if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) {
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precvframe->u.hdr.rx_tail -= sz;
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return NULL;
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}
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precvframe->u.hdr.len += sz;
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return precvframe->u.hdr.rx_tail;
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}
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__inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
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{
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/* rmv data from rx_tail (by yitsen) */
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/* used for extract sz bytes from rx_end, update rx_end and return the updated rx_end to the caller */
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/* after pulling, rx_end must be still larger than rx_data. */
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if (precvframe == NULL)
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return NULL;
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precvframe->u.hdr.rx_tail -= sz;
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if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) {
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precvframe->u.hdr.rx_tail += sz;
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return NULL;
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}
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precvframe->u.hdr.len -= sz;
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return precvframe->u.hdr.rx_tail;
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}
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__inline static _buffer *get_rxbuf_desc(union recv_frame *precvframe)
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{
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_buffer *buf_desc;
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if (precvframe == NULL)
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return NULL;
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#ifdef PLATFORM_WINDOWS
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NdisQueryPacket(precvframe->u.hdr.pkt, NULL, NULL, &buf_desc, NULL);
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#endif
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return buf_desc;
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}
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__inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem)
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{
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/* due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame */
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/* from any given member of recv_frame. */
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/* rxmem indicates the any member/address in recv_frame */
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return (union recv_frame *)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
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}
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__inline static union recv_frame *pkt_to_recvframe(_pkt *pkt)
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{
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u8 *buf_star;
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union recv_frame *precv_frame;
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#ifdef PLATFORM_WINDOWS
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_buffer *buf_desc;
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uint len;
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NdisQueryPacket(pkt, NULL, NULL, &buf_desc, &len);
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NdisQueryBufferSafe(buf_desc, &buf_star, &len, HighPagePriority);
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#endif
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precv_frame = rxmem_to_recvframe((unsigned char *)buf_star);
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return precv_frame;
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}
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__inline static u8 *pkt_to_recvmem(_pkt *pkt)
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{
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/* return the rx_head */
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union recv_frame *precv_frame = pkt_to_recvframe(pkt);
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return precv_frame->u.hdr.rx_head;
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}
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__inline static u8 *pkt_to_recvdata(_pkt *pkt)
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{
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/* return the rx_data */
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union recv_frame *precv_frame = pkt_to_recvframe(pkt);
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return precv_frame->u.hdr.rx_data;
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}
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__inline static sint get_recvframe_len(union recv_frame *precvframe)
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{
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return precvframe->u.hdr.len;
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}
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__inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
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{
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s32 SignalPower; /* in dBm. */
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#ifdef CONFIG_SIGNAL_SCALE_MAPPING
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/* Translate to dBm (x=0.5y-95). */
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SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
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SignalPower -= 95;
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#else
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/* Translate to dBm (x=y-100) */
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SignalPower = SignalStrengthIndex - 100;
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#endif
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return SignalPower;
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}
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struct sta_info;
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extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
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extern void mgt_dispatcher(_adapter *padapter, union recv_frame *precv_frame);
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s32 pre_recv_entry(union recv_frame *precvframe, u8 *pphy_status);
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#endif
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