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rtl8812au-chinawrj/include/rtw_recv.h
kimocoder 2d4a79c1b8 Uploading the v5.3.4 version
2018-08-24 22:52:34 +02:00

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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* 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_RECV_H_
#define _RTW_RECV_H_
#define RTW_RX_MSDU_ACT_NONE 0
#define RTW_RX_MSDU_ACT_INDICATE BIT0
#define RTW_RX_MSDU_ACT_FORWARD BIT1
#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 */
#ifdef CONFIG_RTW_NAPI
#define RTL_NAPI_WEIGHT (32)
#endif
#endif
#if defined(CONFIG_RTL8821C) && defined(CONFIG_SDIO_HCI) && defined(CONFIG_RECV_THREAD_MODE)
#ifdef NR_RECVBUFF
#undef NR_RECVBUFF
#define NR_RECVBUFF (32)
#endif
#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 4 /* 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 tid;
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];
u8 last_tid;
#if 0
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;
#endif
};
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 */
};
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];
};
#include "cmn_info/rtw_sta_info.h"
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];
#ifdef CONFIG_RTW_MESH
u8 msa[ETH_ALEN]; /* mesh sa */
u8 mda[ETH_ALEN]; /* mesh da */
u8 mesh_ctrl_present;
u8 mesh_ctrl_len; /* length of mesh control field */
#endif
u8 ack_policy;
u8 key_index;
u8 data_rate;
u8 ch; /* RX channel */
u8 bw;
u8 stbc;
u8 ldpc;
u8 sgi;
u8 pkt_rpt_type;
u32 tsfl;
u32 MacIDValidEntry[2]; /* 64 bits present 64 entry. */
u8 ppdu_cnt;
u32 free_cnt; /* free run counter */
struct phydm_phyinfo_struct phy_info;
};
#ifdef CONFIG_RTW_MESH
#define RATTRIB_GET_MCTRL_LEN(rattrib) ((rattrib)->mesh_ctrl_len)
#else
#define RATTRIB_GET_MCTRL_LEN(rattrib) 0
#endif
/* 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) */
#if defined(CONFIG_PLATFORM_RTK390X) && defined(CONFIG_USB_HCI)
#define RECVBUFF_ALIGN_SZ 32
#else
#define RECVBUFF_ALIGN_SZ 8
#endif
#ifdef CONFIG_TRX_BD_ARCH
#define RX_WIFI_INFO_SIZE 24
#elif (defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A) || defined(CONFIG_RTL8822B)) && defined(CONFIG_PCI_HCI)
#define RXBD_SIZE sizeof(struct recv_stat)
#endif
#define RXDESC_SIZE 24
#define RXDESC_OFFSET RXDESC_SIZE
#ifdef CONFIG_TRX_BD_ARCH
struct rx_buf_desc {
/* RX has exactly one segment */
#ifdef CONFIG_64BIT_DMA
unsigned int dword[4];
#else
unsigned int dword[2];
#endif
};
struct recv_stat {
unsigned int rxdw[8];
};
#else
struct recv_stat {
unsigned int rxdw0;
unsigned int rxdw1;
#if !((defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A) || defined(CONFIG_RTL8822B) || defined(CONFIG_RTL8821C)) && defined(CONFIG_PCI_HCI)) /* exclude 8192ee, 8814ae, 8822be, 8821ce */
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 */
};
#endif
#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
#ifdef CONFIG_TRX_BD_ARCH
#define RX_BD_NUM PCI_MAX_RX_COUNT /* alias */
#endif
struct rtw_rx_ring {
#ifdef CONFIG_TRX_BD_ARCH
struct rx_buf_desc *buf_desc;
#else
struct recv_stat *desc;
#endif
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
*/
#ifndef DBG_RX_BH_TRACKING
#define DBG_RX_BH_TRACKING 0
#endif
struct recv_priv {
_lock lock;
#ifdef CONFIG_RECV_THREAD_MODE
_sema recv_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;
#if DBG_RX_BH_TRACKING
u32 rx_bh_stage;
u32 rx_bh_buf_dq_cnt;
void *rx_bh_lbuf;
void *rx_bh_cbuf;
void *rx_bh_cbuf_data;
u32 rx_bh_cbuf_dlen;
u32 rx_bh_cbuf_pos;
void *rx_bh_cframe;
#endif
_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 is_any_non_be_pkts;
u64 rx_bytes;
u64 rx_pkts;
u64 rx_drop;
u64 dbg_rx_drop_count;
u64 dbg_rx_ampdu_drop_count;
u64 dbg_rx_ampdu_forced_indicate_count;
u64 dbg_rx_ampdu_loss_count;
u64 dbg_rx_dup_mgt_frame_drop_count;
u64 dbg_rx_ampdu_window_shift_cnt;
u64 dbg_rx_conflic_mac_addr_cnt;
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_RTW_NAPI
struct sk_buff_head rx_napi_skb_queue;
#endif
#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; /* size should be PCI_MAX_RX_QUEUE */
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); */
struct rx_raw_rssi raw_rssi_info;
/* s8 rxpwdb; */
/* 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;
BOOLEAN store_law_data_flag;
};
#define RX_BH_STG_UNKNOWN 0
#define RX_BH_STG_HDL_ENTER 1
#define RX_BH_STG_HDL_EXIT 2
#define RX_BH_STG_NEW_BUF 3
#define RX_BH_STG_NEW_FRAME 4
#define RX_BH_STG_NORMAL_RX 5
#define RX_BH_STG_NORMAL_RX_END 6
#define RX_BH_STG_C2H 7
#define RX_BH_STG_C2H_END 8
#if DBG_RX_BH_TRACKING
void rx_bh_tk_set_stage(struct recv_priv *recv, u32 s);
void rx_bh_tk_set_buf(struct recv_priv *recv, void *buf, void *data, u32 dlen);
void rx_bh_tk_set_buf_pos(struct recv_priv *recv, void *pos);
void rx_bh_tk_set_frame(struct recv_priv *recv, void *frame);
void dump_rx_bh_tk(void *sel, struct recv_priv *recv);
#else
#define rx_bh_tk_set_stage(recv, s) do {} while (0)
#define rx_bh_tk_set_buf(recv, buf, data, dlen) do {} while (0)
#define rx_bh_tk_set_buf_pos(recv, pos) do {} while (0)
#define rx_bh_tk_set_frame(recv, frame) do {} while (0)
#define dump_rx_bh_tk(sel, recv) do {} while (0)
#endif
#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;
u16 bmc_tid_rxseq[16];
/* 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
#if defined(PLATFORM_LINUX)
_pkt *pskb;
#elif defined(PLATFORM_FREEBSD) /* skb solution */
struct sk_buff *pskb;
#endif
};
/*
head ----->
data ----->
payload
tail ----->
end ----->
len = (unsigned int )(tail - data);
*/
struct recv_frame_hdr {
_list list;
_pkt *pkt;
_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);
#if defined(CONFIG_80211N_HT) && defined(CONFIG_RECV_REORDERING_CTRL)
void rtw_reordering_ctrl_timeout_handler(void *pcontext);
#endif
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);
#ifdef CONFIG_RECV_THREAD_MODE
thread_return rtw_recv_thread(thread_context context);
#endif
__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;
/* RTW_INFO("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);
u8 adapter_allow_bmc_data_rx(_adapter *adapter);
s32 pre_recv_entry(union recv_frame *precvframe, u8 *pphy_status);
void count_rx_stats(_adapter *padapter, union recv_frame *prframe, struct sta_info *sta);
#endif
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