drivers/staging/rtl8723bs/include/rtw_recv.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  ******************************************************************************/
  15 #ifndef _RTW_RECV_H_
  16 #define _RTW_RECV_H_
  17
  18         #ifdef CONFIG_SINGLE_RECV_BUF
  19                 #define NR_RECVBUFF (1)
  20         #else
  21                 #define NR_RECVBUFF (8)
  22         #endif /* CONFIG_SINGLE_RECV_BUF */
  23
  24         #define NR_PREALLOC_RECV_SKB (8)
  25
  26 #define NR_RECVFRAME 256
  27
  28 #define RXFRAME_ALIGN   8
  29 #define RXFRAME_ALIGN_SZ        (1<<RXFRAME_ALIGN)
  30
  31 #define DRVINFO_SZ      4 /*  unit is 8bytes */
  32
  33 #define MAX_RXFRAME_CNT 512
  34 #define MAX_RX_NUMBLKS          (32)
  35 #define RECVFRAME_HDR_ALIGN 128
  36
  37
  38 #define PHY_RSSI_SLID_WIN_MAX                           100
  39 #define PHY_LINKQUALITY_SLID_WIN_MAX            20
  40
  41
  42 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
  43
  44 #define RX_MPDU_QUEUE                           0
  45 #define RX_CMD_QUEUE                            1
  46 #define RX_MAX_QUEUE                            2
  47
  48 #define MAX_SUBFRAME_COUNT      64
  49 extern u8 rtw_rfc1042_header[];
  50 extern u8 rtw_bridge_tunnel_header[];
  51
  52 /* for Rx reordering buffer control */
  53 struct recv_reorder_ctrl
  54 {
  55         struct adapter  *padapter;
  56         u8 enable;
  57         u16 indicate_seq;/* wstart_b, init_value = 0xffff */
  58         u16 wend_b;
  59         u8 wsize_b;
  60         struct __queue pending_recvframe_queue;
  61         _timer reordering_ctrl_timer;
  62 };
  63
  64 struct  stainfo_rxcache {
  65         u16 tid_rxseq[16];
  66 /*
  67         unsigned short  tid0_rxseq;
  68         unsigned short  tid1_rxseq;
  69         unsigned short  tid2_rxseq;
  70         unsigned short  tid3_rxseq;
  71         unsigned short  tid4_rxseq;
  72         unsigned short  tid5_rxseq;
  73         unsigned short  tid6_rxseq;
  74         unsigned short  tid7_rxseq;
  75         unsigned short  tid8_rxseq;
  76         unsigned short  tid9_rxseq;
  77         unsigned short  tid10_rxseq;
  78         unsigned short  tid11_rxseq;
  79         unsigned short  tid12_rxseq;
  80         unsigned short  tid13_rxseq;
  81         unsigned short  tid14_rxseq;
  82         unsigned short  tid15_rxseq;
  83 */
  84 };
  85
  86
  87 struct smooth_rssi_data {
  88         u32 elements[100];      /* array to store values */
  89         u32 index;                      /* index to current array to store */
  90         u32 total_num;          /* num of valid elements */
  91         u32 total_val;          /* sum of valid elements */
  92 };
  93
  94 struct signal_stat {
  95         u8 update_req;          /* used to indicate */
  96         u8 avg_val;             /* avg of valid elements */
  97         u32 total_num;          /* num of valid elements */
  98         u32 total_val;          /* sum of valid elements */
  99 };
 100
 101 struct phy_info {
 102         u8 RxPWDBAll;
 103
 104         u8 SignalQuality;        /*  in 0-100 index. */
 105         s8              RxMIMOSignalQuality[4]; /* per-path's EVM */
 106         u8 RxMIMOEVMdbm[4];             /* per-path's EVM dbm */
 107
 108         u8 RxMIMOSignalStrength[4];/*  in 0~100 index */
 109
 110         u16     Cfo_short[4];                   /*  per-path's Cfo_short */
 111         u16     Cfo_tail[4];                    /*  per-path's Cfo_tail */
 112
 113         s8              RxPower; /*  in dBm Translate from PWdB */
 114         s8              RecvSignalPower;/*  Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
 115         u8 BTRxRSSIPercentage;
 116         u8 SignalStrength; /*  in 0-100 index. */
 117
 118         s8              RxPwr[4];                               /* per-path's pwdb */
 119         u8 RxSNR[4];                            /* per-path's SNR */
 120         u8 BandWidth;
 121         u8 btCoexPwrAdjust;
 122 };
 123
 124 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
 125 struct rx_raw_rssi
 126 {
 127         u8 data_rate;
 128         u8 pwdball;
 129         s8 pwr_all;
 130
 131         u8 mimo_singal_strength[4];/*  in 0~100 index */
 132         u8 mimo_singal_quality[4];
 133
 134         s8 ofdm_pwr[4];
 135         u8 ofdm_snr[4];
 136
 137 };
 138 #endif
 139
 140 struct rx_pkt_attrib    {
 141         u16 pkt_len;
 142         u8 physt;
 143         u8 drvinfo_sz;
 144         u8 shift_sz;
 145         u8 hdrlen; /* the WLAN Header Len */
 146         u8 to_fr_ds;
 147         u8 amsdu;
 148         u8 qos;
 149         u8 priority;
 150         u8 pw_save;
 151         u8 mdata;
 152         u16 seq_num;
 153         u8 frag_num;
 154         u8 mfrag;
 155         u8 order;
 156         u8 privacy; /* in frame_ctrl field */
 157         u8 bdecrypted;
 158         u8 encrypt; /* when 0 indicate no encrypt. when non-zero, indicate the encrypt algorith */
 159         u8 iv_len;
 160         u8 icv_len;
 161         u8 crc_err;
 162         u8 icv_err;
 163
 164         u16 eth_type;
 165
 166         u8 dst[ETH_ALEN];
 167         u8 src[ETH_ALEN];
 168         u8 ta[ETH_ALEN];
 169         u8 ra[ETH_ALEN];
 170         u8 bssid[ETH_ALEN];
 171
 172         u8 ack_policy;
 173
 174 /* ifdef CONFIG_TCP_CSUM_OFFLOAD_RX */
 175         u8 tcpchk_valid; /*  0: invalid, 1: valid */
 176         u8 ip_chkrpt; /* 0: incorrect, 1: correct */
 177         u8 tcp_chkrpt; /* 0: incorrect, 1: correct */
 178 /* endif */
 179         u8 key_index;
 180
 181         u8 data_rate;
 182         u8 sgi;
 183         u8 pkt_rpt_type;
 184         u32 MacIDValidEntry[2]; /*  64 bits present 64 entry. */
 185
 186 /*
 187         u8 signal_qual;
 188         s8      rx_mimo_signal_qual[2];
 189         u8 signal_strength;
 190         u32 RxPWDBAll;
 191         s32     RecvSignalPower;
 192 */
 193         struct phy_info phy_info;
 194 };
 195
 196
 197 /* These definition is used for Rx packet reordering. */
 198 #define SN_LESS(a, b)           (((a-b)&0x800)!= 0)
 199 #define SN_EQUAL(a, b)  (a == b)
 200 /* define REORDER_WIN_SIZE      128 */
 201 /* define REORDER_ENTRY_NUM     128 */
 202 #define REORDER_WAIT_TIME       (50) /*  (ms) */
 203
 204 #define RECVBUFF_ALIGN_SZ 8
 205
 206 #define RXDESC_SIZE     24
 207 #define RXDESC_OFFSET RXDESC_SIZE
 208
 209 struct recv_stat {
 210         __le32 rxdw0;
 211         __le32 rxdw1;
 212         __le32 rxdw2;
 213         __le32 rxdw3;
 214 #ifndef BUF_DESC_ARCH
 215         __le32 rxdw4;
 216         __le32 rxdw5;
 217 #endif /* if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words */
 218 };
 219
 220 #define EOR BIT(30)
 221
 222 /*
 223 accesser of recv_priv: rtw_recv_entry(dispatch / passive level); recv_thread(passive) ; returnpkt(dispatch)
 224 ; halt(passive) ;
 225
 226 using enter_critical section to protect
 227 */
 228 struct recv_priv {
 229         _lock   lock;
 230         struct __queue  free_recv_queue;
 231         struct __queue  recv_pending_queue;
 232         struct __queue  uc_swdec_pending_queue;
 233         u8 *pallocated_frame_buf;
 234         u8 *precv_frame_buf;
 235         uint free_recvframe_cnt;
 236         struct adapter  *adapter;
 237         u32 bIsAnyNonBEPkts;
 238         u64     rx_bytes;
 239         u64     rx_pkts;
 240         u64     rx_drop;
 241         uint  rx_icv_err;
 242         uint  rx_largepacket_crcerr;
 243         uint  rx_smallpacket_crcerr;
 244         uint  rx_middlepacket_crcerr;
 245
 246         struct tasklet_struct irq_prepare_beacon_tasklet;
 247         struct tasklet_struct recv_tasklet;
 248         struct sk_buff_head free_recv_skb_queue;
 249         struct sk_buff_head rx_skb_queue;
 250 #ifdef CONFIG_RX_INDICATE_QUEUE
 251         struct task rx_indicate_tasklet;
 252         struct ifqueue rx_indicate_queue;
 253 #endif  /*  CONFIG_RX_INDICATE_QUEUE */
 254
 255         u8 *pallocated_recv_buf;
 256         u8 *precv_buf;    /*  4 alignment */
 257         struct __queue  free_recv_buf_queue;
 258         u32 free_recv_buf_queue_cnt;
 259
 260         struct __queue  recv_buf_pending_queue;
 261
 262         /* For display the phy informatiom */
 263         u8 is_signal_dbg;       /*  for debug */
 264         u8 signal_strength_dbg; /*  for debug */
 265
 266         u8 signal_strength;
 267         u8 signal_qual;
 268         s8 rssi;        /* translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength); */
 269         #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
 270         struct rx_raw_rssi raw_rssi_info;
 271         #endif
 272         /* s8 rxpwdb; */
 273         s16 noise;
 274         /* int RxSNRdB[2]; */
 275         /* s8 RxRssi[2]; */
 276         /* int FalseAlmCnt_all; */
 277
 278
 279         _timer signal_stat_timer;
 280         u32 signal_stat_sampling_interval;
 281         /* u32 signal_stat_converging_constant; */
 282         struct signal_stat signal_qual_data;
 283         struct signal_stat signal_strength_data;
 284 };
 285
 286 #define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
 287
 288 struct sta_recv_priv {
 289
 290         _lock   lock;
 291         sint    option;
 292
 293         /* struct __queue       blk_strms[MAX_RX_NUMBLKS]; */
 294         struct __queue defrag_q;         /* keeping the fragment frame until defrag */
 295
 296         struct  stainfo_rxcache rxcache;
 297
 298         /* uint sta_rx_bytes; */
 299         /* uint sta_rx_pkts; */
 300         /* uint sta_rx_fail; */
 301
 302 };
 303
 304
 305 struct recv_buf
 306 {
 307         struct list_head list;
 308
 309         _lock recvbuf_lock;
 310
 311         u32 ref_cnt;
 312
 313         struct adapter * adapter;
 314
 315         u8 *pbuf;
 316         u8 *pallocated_buf;
 317
 318         u32 len;
 319         u8 *phead;
 320         u8 *pdata;
 321         u8 *ptail;
 322         u8 *pend;
 323
 324         _pkt    *pskb;
 325         u8 reuse;
 326 };
 327
 328
 329 /*
 330         head  ----->
 331
 332                 data  ----->
 333
 334                         payload
 335
 336                 tail  ----->
 337
 338
 339         end   ----->
 340
 341         len = (unsigned int)(tail - data);
 342
 343 */
 344 struct recv_frame_hdr
 345 {
 346         struct list_head        list;
 347 #ifndef CONFIG_BSD_RX_USE_MBUF
 348         struct sk_buff   *pkt;
 349         struct sk_buff   *pkt_newalloc;
 350 #else /*  CONFIG_BSD_RX_USE_MBUF */
 351         _pkt    *pkt;
 352         _pkt *pkt_newalloc;
 353 #endif /*  CONFIG_BSD_RX_USE_MBUF */
 354
 355         struct adapter  *adapter;
 356
 357         u8 fragcnt;
 358
 359         int frame_tag;
 360
 361         struct rx_pkt_attrib attrib;
 362
 363         uint  len;
 364         u8 *rx_head;
 365         u8 *rx_data;
 366         u8 *rx_tail;
 367         u8 *rx_end;
 368
 369         void *precvbuf;
 370
 371
 372         /*  */
 373         struct sta_info *psta;
 374
 375         /* for A-MPDU Rx reordering buffer control */
 376         struct recv_reorder_ctrl *preorder_ctrl;
 377 };
 378
 379
 380 union recv_frame{
 381         union{
 382                 struct list_head list;
 383                 struct recv_frame_hdr hdr;
 384                 uint mem[RECVFRAME_HDR_ALIGN>>2];
 385         }u;
 386
 387         /* uint mem[MAX_RXSZ>>2]; */
 388
 389 };
 390
 391 enum RX_PACKET_TYPE {
 392         NORMAL_RX,/* Normal rx packet */
 393         TX_REPORT1,/* CCX */
 394         TX_REPORT2,/* TX RPT */
 395         HIS_REPORT,/*  USB HISR RPT */
 396         C2H_PACKET
 397 };
 398
 399 extern union recv_frame *_rtw_alloc_recvframe (struct __queue *pfree_recv_queue);  /* get a free recv_frame from pfree_recv_queue */
 400 extern union recv_frame *rtw_alloc_recvframe (struct __queue *pfree_recv_queue);  /* get a free recv_frame from pfree_recv_queue */
 401 extern int       rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue);
 402
 403 #define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
 404 extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue);
 405 extern int rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue);
 406
 407 extern void rtw_free_recvframe_queue(struct __queue *pframequeue,  struct __queue *pfree_recv_queue);
 408 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
 409
 410 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue);
 411 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue);
 412 struct recv_buf *rtw_dequeue_recvbuf (struct __queue *queue);
 413
 414 void rtw_reordering_ctrl_timeout_handler(struct timer_list *t);
 415
 416 __inline static u8 *get_rxmem(union recv_frame *precvframe)
 417 {
 418         /* always return rx_head... */
 419         if (precvframe == NULL)
 420                 return NULL;
 421
 422         return precvframe->u.hdr.rx_head;
 423 }
 424
 425 __inline static u8 *get_recvframe_data(union recv_frame *precvframe)
 426 {
 427
 428         /* alwasy return rx_data */
 429         if (precvframe == NULL)
 430                 return NULL;
 431
 432         return precvframe->u.hdr.rx_data;
 433
 434 }
 435
 436 __inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
 437 {
 438         /*  rx_data += sz; move rx_data sz bytes  hereafter */
 439
 440         /* used for extract sz bytes from rx_data, update rx_data and return the updated rx_data to the caller */
 441
 442
 443         if (precvframe == NULL)
 444                 return NULL;
 445
 446
 447         precvframe->u.hdr.rx_data += sz;
 448
 449         if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail)
 450         {
 451                 precvframe->u.hdr.rx_data -= sz;
 452                 return NULL;
 453         }
 454
 455         precvframe->u.hdr.len -=sz;
 456
 457         return precvframe->u.hdr.rx_data;
 458
 459 }
 460
 461 __inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
 462 {
 463         /*  rx_tai += sz; move rx_tail sz bytes  hereafter */
 464
 465         /* used for append sz bytes from ptr to rx_tail, update rx_tail and return the updated rx_tail to the caller */
 466         /* after putting, rx_tail must be still larger than rx_end. */
 467         unsigned char * prev_rx_tail;
 468
 469         if (precvframe == NULL)
 470                 return NULL;
 471
 472         prev_rx_tail = precvframe->u.hdr.rx_tail;
 473
 474         precvframe->u.hdr.rx_tail += sz;
 475
 476         if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end)
 477         {
 478                 precvframe->u.hdr.rx_tail = prev_rx_tail;
 479                 return NULL;
 480         }
 481
 482         precvframe->u.hdr.len +=sz;
 483
 484         return precvframe->u.hdr.rx_tail;
 485
 486 }
 487
 488
 489
 490 __inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
 491 {
 492         /*  rmv data from rx_tail (by yitsen) */
 493
 494         /* used for extract sz bytes from rx_end, update rx_end and return the updated rx_end to the caller */
 495         /* after pulling, rx_end must be still larger than rx_data. */
 496
 497         if (precvframe == NULL)
 498                 return NULL;
 499
 500         precvframe->u.hdr.rx_tail -= sz;
 501
 502         if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data)
 503         {
 504                 precvframe->u.hdr.rx_tail += sz;
 505                 return NULL;
 506         }
 507
 508         precvframe->u.hdr.len -=sz;
 509
 510         return precvframe->u.hdr.rx_tail;
 511
 512 }
 513
 514 __inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem)
 515 {
 516         /* due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame */
 517         /* from any given member of recv_frame. */
 518         /*  rxmem indicates the any member/address in recv_frame */
 519
 520         return (union recv_frame*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
 521
 522 }
 523
 524 __inline static sint get_recvframe_len(union recv_frame *precvframe)
 525 {
 526         return precvframe->u.hdr.len;
 527 }
 528
 529
 530 __inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
 531 {
 532         s32     SignalPower; /*  in dBm. */
 533
 534 #ifdef CONFIG_SKIP_SIGNAL_SCALE_MAPPING
 535         /*  Translate to dBm (x =y-100) */
 536         SignalPower = SignalStrengthIndex - 100;
 537 #else
 538         /*  Translate to dBm (x = 0.5y-95). */
 539         SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
 540         SignalPower -= 95;
 541 #endif
 542
 543         return SignalPower;
 544 }
 545
 546
 547 struct sta_info;
 548
 549 extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
 550
 551 extern void  mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame);
 552
 553 #endif