LXR linux/drivers/staging/rtl8712/rtl871x

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _RTL871X_RECV_H_
   3#define _RTL871X_RECV_H_
   4
   5#include "osdep_service.h"
   6#include "drv_types.h"
   7
   8#define NR_RECVFRAME 256
   9
  10#define RXFRAME_ALIGN   8
  11#define RXFRAME_ALIGN_SZ        (1 << RXFRAME_ALIGN)
  12
  13#define MAX_SUBFRAME_COUNT      64
  14
  15#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
  16
  17/* for Rx reordering buffer control */
  18struct recv_reorder_ctrl {
  19        struct _adapter *padapter;
  20        u16 indicate_seq; /* =wstart_b, init_value=0xffff */
  21        u16 wend_b;
  22        u8 wsize_b;
  23        struct  __queue pending_recvframe_queue;
  24        struct timer_list reordering_ctrl_timer;
  25};
  26
  27struct  stainfo_rxcache {
  28        u16     tid_rxseq[16];
  29};
  30
  31#define         PHY_RSSI_SLID_WIN_MAX                   100
  32#define         PHY_LINKQUALITY_SLID_WIN_MAX            20
  33
  34
  35struct smooth_rssi_data {
  36        u32     elements[100];  /* array to store values */
  37        u32     index;          /* index to current array to store */
  38        u32     total_num;      /* num of valid elements */
  39        u32     total_val;      /* sum of valid elements */
  40};
  41
  42struct rx_pkt_attrib {
  43
  44        u8      amsdu;
  45        u8      order;
  46        u8      qos;
  47        u8      to_fr_ds;
  48        u8      frag_num;
  49        u16     seq_num;
  50        u8   pw_save;
  51        u8    mfrag;
  52        u8    mdata;
  53        u8      privacy; /* in frame_ctrl field */
  54        u8      bdecrypted;
  55        int     hdrlen;  /* the WLAN Header Len */
  56        int     encrypt; /* 0 no encrypt. != 0 encrypt algorith */
  57        int     iv_len;
  58        int     icv_len;
  59        int     priority;
  60        int     ack_policy;
  61        u8      crc_err;
  62        u8      dst[ETH_ALEN];
  63        u8      src[ETH_ALEN];
  64        u8      ta[ETH_ALEN];
  65        u8      ra[ETH_ALEN];
  66        u8      bssid[ETH_ALEN];
  67        u8      tcpchk_valid; /* 0: invalid, 1: valid */
  68        u8      ip_chkrpt; /* 0: incorrect, 1: correct */
  69        u8      tcp_chkrpt; /* 0: incorrect, 1: correct */
  70        u8      signal_qual;
  71        s8      rx_mimo_signal_qual[2];
  72        u8      mcs_rate;
  73        u8      htc;
  74        u8      signal_strength;
  75};
  76
  77/*
  78 * accesser of recv_priv: recv_entry(dispatch / passive level);
  79 * recv_thread(passive) ; returnpkt(dispatch)
  80 * ; halt(passive) ;
  81 *
  82 * using enter_critical section to protect
  83 */
  84struct recv_priv {
  85        spinlock_t lock;
  86        struct  __queue free_recv_queue;
  87        struct  __queue recv_pending_queue;
  88        u8 *pallocated_frame_buf;
  89        u8 *precv_frame_buf;
  90        uint free_recvframe_cnt;
  91        struct _adapter *adapter;
  92        uint    rx_bytes;
  93        uint    rx_pkts;
  94        uint    rx_drop;
  95        uint  rx_icv_err;
  96        uint  rx_largepacket_crcerr;
  97        uint  rx_smallpacket_crcerr;
  98        uint  rx_middlepacket_crcerr;
  99        u8  rx_pending_cnt;
 100        uint    ff_hwaddr;
 101        struct tasklet_struct recv_tasklet;
 102        struct sk_buff_head free_recv_skb_queue;
 103        struct sk_buff_head rx_skb_queue;
 104        u8 *pallocated_recv_buf;
 105        u8 *precv_buf;    /* 4 alignment */
 106        struct  __queue free_recv_buf_queue;
 107        u32     free_recv_buf_queue_cnt;
 108        /* For the phy informatiom */
 109        s8 rssi;
 110        u8 signal;
 111        u8 noise;
 112        u8 fw_rssi;
 113        struct smooth_rssi_data signal_qual_data;
 114        struct smooth_rssi_data signal_strength_data;
 115};
 116
 117struct sta_recv_priv {
 118        spinlock_t lock;
 119        sint    option;
 120        struct  __queue defrag_q; /* keeping the fragment frame until defrag */
 121        struct  stainfo_rxcache rxcache;
 122        uint    sta_rx_bytes;
 123        uint    sta_rx_pkts;
 124        uint    sta_rx_fail;
 125};
 126
 127#include "rtl8712_recv.h"
 128
 129/* get a free recv_frame from pfree_recv_queue */
 130union recv_frame *r8712_alloc_recvframe(struct  __queue *pfree_recv_queue);
 131int r8712_free_recvframe(union recv_frame *precvframe,
 132                          struct  __queue *pfree_recv_queue);
 133void r8712_free_recvframe_queue(struct  __queue *pframequeue,
 134                                 struct  __queue *pfree_recv_queue);
 135int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe);
 136int recv_func(struct _adapter *padapter, void *pcontext);
 137
 138static inline u8 *get_rxmem(union recv_frame *precvframe)
 139{
 140        /* always return rx_head... */
 141        if (precvframe == NULL)
 142                return NULL;
 143        return precvframe->u.hdr.rx_head;
 144}
 145
 146static inline u8 *get_recvframe_data(union recv_frame *precvframe)
 147{
 148        /* always return rx_data */
 149        if (precvframe == NULL)
 150                return NULL;
 151        return precvframe->u.hdr.rx_data;
 152}
 153
 154static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
 155{
 156        /* used for extract sz bytes from rx_data, update rx_data and return
 157         * the updated rx_data to the caller
 158         */
 159        if (precvframe == NULL)
 160                return NULL;
 161        precvframe->u.hdr.rx_data += sz;
 162        if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) {
 163                precvframe->u.hdr.rx_data -= sz;
 164                return NULL;
 165        }
 166        precvframe->u.hdr.len -= sz;
 167        return precvframe->u.hdr.rx_data;
 168}
 169
 170static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz)
 171{
 172        /* used for append sz bytes from ptr to rx_tail, update rx_tail and
 173         * return the updated rx_tail to the caller
 174         * after putting, rx_tail must be still larger than rx_end.
 175         */
 176        if (precvframe == NULL)
 177                return NULL;
 178        precvframe->u.hdr.rx_tail += sz;
 179        if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) {
 180                precvframe->u.hdr.rx_tail -= sz;
 181                return NULL;
 182        }
 183        precvframe->u.hdr.len += sz;
 184        return precvframe->u.hdr.rx_tail;
 185}
 186
 187static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
 188{
 189        /* rmv data from rx_tail (by yitsen)
 190         * used for extract sz bytes from rx_end, update rx_end and return the
 191         * updated rx_end to the caller
 192         * after pulling, rx_end must be still larger than rx_data.
 193         */
 194        if (precvframe == NULL)
 195                return NULL;
 196        precvframe->u.hdr.rx_tail -= sz;
 197        if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) {
 198                precvframe->u.hdr.rx_tail += sz;
 199                return NULL;
 200        }
 201        precvframe->u.hdr.len -= sz;
 202        return precvframe->u.hdr.rx_tail;
 203}
 204
 205struct sta_info;
 206
 207void    _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
 208sint r8712_recvframe_chkmic(struct _adapter *adapter,
 209                            union recv_frame *precvframe);
 210union recv_frame *r8712_decryptor(struct _adapter *adapter,
 211                                  union recv_frame *precv_frame);
 212union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter,
 213                                             union recv_frame *precv_frame);
 214int r8712_validate_recv_frame(struct _adapter *adapter,
 215                              union recv_frame *precv_frame);
 216union recv_frame *r8712_portctrl(struct _adapter *adapter,
 217                                 union recv_frame *precv_frame);
 218
 219#endif
 220
 221