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 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 *
19 ******************************************************************************/
20 #ifndef _RTW_RECV_H_
21 #define _RTW_RECV_H_
22
23 #ifdef PLATFORM_OS_XP
24 #ifdef CONFIG_SDIO_HCI
25 #define NR_RECVBUFF 1024//512//128
26 #else
27 #define NR_RECVBUFF (16)
28 #endif
29 #elif defined(PLATFORM_OS_CE)
30 #ifdef CONFIG_SDIO_HCI
31 #define NR_RECVBUFF (128)
32 #else
33 #define NR_RECVBUFF (4)
34 #endif
35 #else //PLATFORM_LINUX /PLATFORM_BSD
36
37 #ifdef CONFIG_SINGLE_RECV_BUF
38 #define NR_RECVBUFF (1)
39 #else
40 #if defined(CONFIG_GSPI_HCI)
41 #define NR_RECVBUFF (32)
42 #elif defined(CONFIG_SDIO_HCI)
43 #define NR_RECVBUFF (8)
44 #else
45 #define NR_RECVBUFF (8)
46 #endif
47 #endif //CONFIG_SINGLE_RECV_BUF
48 #ifdef CONFIG_PREALLOC_RX_SKB_BUFFER
49 #define NR_PREALLOC_RECV_SKB (rtw_rtkm_get_nr_recv_skb()>>1)
50 #else /*!CONFIG_PREALLOC_RX_SKB_BUFFER */
51 #define NR_PREALLOC_RECV_SKB 8
52 #endif /* CONFIG_PREALLOC_RX_SKB_BUFFER */
53
54 #endif
55
56 #define NR_RECVFRAME 256
57
58 #define RXFRAME_ALIGN 8
59 #define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN)
60
61 #define DRVINFO_SZ 4 // unit is 8bytes
62
63 #define MAX_RXFRAME_CNT 512
64 #define MAX_RX_NUMBLKS (32)
65 #define RECVFRAME_HDR_ALIGN 128
66 #define MAX_CONTINUAL_NORXPACKET_COUNT 1 /* In MAX_CONTINUAL_NORXPACKET_COUNT*2 sec , no rx traffict would issue DELBA*/
67
68 #define PHY_RSSI_SLID_WIN_MAX 100
69 #define PHY_LINKQUALITY_SLID_WIN_MAX 20
70
71
72 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
73
74 #define RX_MPDU_QUEUE 0
75 #define RX_CMD_QUEUE 1
76 #define RX_MAX_QUEUE 2
77
78 static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
79
80 static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
81 static u8 SNAP_ETH_TYPE_APPLETALK_DDP[2] = {0x80, 0x9b};
82 static u8 SNAP_ETH_TYPE_TDLS[2] = {0x89, 0x0d};
83 static u8 SNAP_HDR_APPLETALK_DDP[3] = {0x08, 0x00, 0x07}; // Datagram Delivery Protocol
84
85 static u8 oui_8021h[] = {0x00, 0x00, 0xf8};
86 static u8 oui_rfc1042[]= {0x00,0x00,0x00};
87
88 #define MAX_SUBFRAME_COUNT 64
89 static u8 rtw_rfc1042_header[] =
90 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
91 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
92 static u8 rtw_bridge_tunnel_header[] =
93 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
94
95 //for Rx reordering buffer control
96 struct recv_reorder_ctrl
97 {
98 _adapter *padapter;
99 u8 enable;
100 u16 indicate_seq;//=wstart_b, init_value=0xffff
101 u16 wend_b;
102 u8 wsize_b;
103 u8 ampdu_size;
104 _queue pending_recvframe_queue;
105 _timer reordering_ctrl_timer;
106 u8 bReorderWaiting;
107 };
108
109 struct stainfo_rxcache {
110 u16 tid_rxseq[16];
111 /*
112 unsigned short tid0_rxseq;
113 unsigned short tid1_rxseq;
114 unsigned short tid2_rxseq;
115 unsigned short tid3_rxseq;
116 unsigned short tid4_rxseq;
117 unsigned short tid5_rxseq;
118 unsigned short tid6_rxseq;
119 unsigned short tid7_rxseq;
120 unsigned short tid8_rxseq;
121 unsigned short tid9_rxseq;
122 unsigned short tid10_rxseq;
123 unsigned short tid11_rxseq;
124 unsigned short tid12_rxseq;
125 unsigned short tid13_rxseq;
126 unsigned short tid14_rxseq;
127 unsigned short tid15_rxseq;
128 */
129 };
130
131
132 struct smooth_rssi_data {
133 u32 elements[100]; //array to store values
134 u32 index; //index to current array to store
135 u32 total_num; //num of valid elements
136 u32 total_val; //sum of valid elements
137 };
138
139 struct signal_stat {
140 u8 update_req; //used to indicate
141 u8 avg_val; //avg of valid elements
142 u32 total_num; //num of valid elements
143 u32 total_val; //sum of valid elements
144 };
145 /*
146 typedef struct _ODM_Phy_Status_Info_
147 {
148 //
149 // Be care, if you want to add any element please insert between
150 // RxPWDBAll & SignalStrength.
151 //
152 #if (DM_ODM_SUPPORT_TYPE & (ODM_WIN))
153 u4Byte RxPWDBAll;
154 #else
155 u1Byte RxPWDBAll;
156 #endif
157
158 u1Byte SignalQuality; // in 0-100 index.
159 s1Byte RxMIMOSignalQuality[4]; //per-path's EVM
160 u1Byte RxMIMOEVMdbm[4]; //per-path's EVM dbm
161
162 u1Byte RxMIMOSignalStrength[4];// in 0~100 index
163
164 u2Byte Cfo_short[4]; // per-path's Cfo_short
165 u2Byte Cfo_tail[4]; // per-path's Cfo_tail
166
167 #if (DM_ODM_SUPPORT_TYPE & (ODM_WIN|ODM_CE))
168 s1Byte RxPower; // in dBm Translate from PWdB
169 s1Byte RecvSignalPower; // Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures.
170 u1Byte BTRxRSSIPercentage;
171 u1Byte SignalStrength; // in 0-100 index.
172
173 u1Byte RxPwr[4]; //per-path's pwdb
174 #endif
175 u1Byte RxSNR[4]; //per-path's SNR
176 u1Byte BandWidth;
177 u1Byte btCoexPwrAdjust;
178 }ODM_PHY_INFO_T,*PODM_PHY_INFO_T;
179 */
180
181 struct phy_info
182 {
183 u8 RxPWDBAll;
184 u8 SignalQuality; /* in 0-100 index. */
185 s8 RxMIMOSignalQuality[4]; /* per-path's EVM */
186 u8 RxMIMOEVMdbm[4]; /* per-path's EVM dbm */
187 u8 RxMIMOSignalStrength[4]; /* in 0~100 index */
188 s16 Cfo_short[4]; /* per-path's Cfo_short */
189 s16 Cfo_tail[4]; /* per-path's Cfo_tail */
190 s8 RxPower; /* in dBm Translate from PWdB */
191 s8 RecvSignalPower; /* Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
192 u8 BTRxRSSIPercentage;
193 u8 SignalStrength; /* in 0-100 index. */
194 s8 RxPwr[4]; /* per-path's pwdb */
195 s8 RxSNR[4];
196 #if (RTL8822B_SUPPORT == 1)
197 u8 RxCount:2;
198 u8 BandWidth:2;
199 u8 rxsc:4;
200 #else
201 u8 BandWidth;
202 #endif
203 u8 btCoexPwrAdjust;
204 #if (RTL8822B_SUPPORT == 1)
205 u8 channel; /* channel number---*/
206 BOOLEAN bMuPacket; /* is MU packet or not---*/
207 BOOLEAN bBeamformed;
208 #endif
209 };
210
211 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
212 struct rx_raw_rssi
213 {
214 u8 data_rate;
215 u8 pwdball;
216 s8 pwr_all;
217
218 u8 mimo_signal_strength[4];/* in 0~100 index */
219 u8 mimo_signal_quality[4];
220
221 s8 ofdm_pwr[4];
222 u8 ofdm_snr[4];
223
224 };
225 #endif
226
227 struct rx_pkt_attrib {
228 u16 pkt_len;
229 u8 physt;
230 u8 drvinfo_sz;
231 u8 shift_sz;
232 u8 hdrlen; //the WLAN Header Len
233 u8 to_fr_ds;
234 u8 amsdu;
235 u8 qos;
236 u8 priority;
237 u8 pw_save;
238 u8 mdata;
239 u16 seq_num;
240 u8 frag_num;
241 u8 mfrag;
242 u8 order;
243 u8 privacy; //in frame_ctrl field
244 u8 bdecrypted;
245 u8 encrypt; //when 0 indicate no encrypt. when non-zero, indicate the encrypt algorith
246 u8 iv_len;
247 u8 icv_len;
248 u8 crc_err;
249 u8 icv_err;
250
251 u16 eth_type;
252
253 u8 dst[ETH_ALEN];
254 u8 src[ETH_ALEN];
255 u8 ta[ETH_ALEN];
256 u8 ra[ETH_ALEN];
257 u8 bssid[ETH_ALEN];
258
259 u8 ack_policy;
260
261 //#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
262 u8 tcpchk_valid; // 0: invalid, 1: valid
263 u8 ip_chkrpt; //0: incorrect, 1: correct
264 u8 tcp_chkrpt; //0: incorrect, 1: correct
265 //#endif
266 u8 key_index;
267
268 u8 data_rate;
269 u8 bw;
270 u8 stbc;
271 u8 ldpc;
272 u8 sgi;
273 u8 pkt_rpt_type;
274 u32 tsfl;
275 u32 MacIDValidEntry[2]; // 64 bits present 64 entry.
276
277 /*
278 u8 signal_qual;
279 s8 rx_mimo_signal_qual[2];
280 u8 signal_strength;
281 u32 RxPWDBAll;
282 s32 RecvSignalPower;
283 */
284 struct phy_info phy_info;
285 };
286
287
288 //These definition is used for Rx packet reordering.
289 #define SN_LESS(a, b) (((a-b)&0x800)!=0)
290 #define SN_EQUAL(a, b) (a == b)
291 //#define REORDER_WIN_SIZE 128
292 //#define REORDER_ENTRY_NUM 128
293 #define REORDER_WAIT_TIME (50) // (ms)
294
295 #define RECVBUFF_ALIGN_SZ 8
296
297 #if defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A)
298 #ifdef CONFIG_PCI_HCI
299 #define RXDESC_SIZE 16
300 #define RX_WIFI_INFO_SIZE 24
301 #else
302 #define RXDESC_SIZE 24
303 #endif
304 #else
305 #define RXDESC_SIZE 24
306 #endif
307 #define RXDESC_OFFSET RXDESC_SIZE
308
309 struct recv_stat
310 {
311 unsigned int rxdw0;
312
313 unsigned int rxdw1;
314
315 #if !((defined(CONFIG_RTL8192E) || defined(CONFIG_RTL8814A)) && defined(CONFIG_PCI_HCI)) /* exclude 8192ee, 8814ae */
316 unsigned int rxdw2;
317
318 unsigned int rxdw3;
319 #endif
320
321 #ifndef BUF_DESC_ARCH
322 unsigned int rxdw4;
323
324 unsigned int rxdw5;
325
326 #ifdef CONFIG_PCI_HCI
327 unsigned int rxdw6;
328
329 unsigned int rxdw7;
330 #endif
331 #endif //if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words
332 };
333
334 #define EOR BIT(30)
335
336 #ifdef CONFIG_PCI_HCI
337 #define PCI_MAX_RX_QUEUE 1// MSDU packet queue, Rx Command Queue
338 #define PCI_MAX_RX_COUNT 128
339
340 struct rtw_rx_ring {
341 struct recv_stat *desc;
342 dma_addr_t dma;
343 unsigned int idx;
344 struct sk_buff *rx_buf[PCI_MAX_RX_COUNT];
345 };
346 #endif
347
348
349
350 /*
351 accesser of recv_priv: rtw_recv_entry(dispatch / passive level); recv_thread(passive) ; returnpkt(dispatch)
352 ; halt(passive) ;
353
354 using enter_critical section to protect
355 */
356 struct recv_priv
357 {
358 _lock lock;
359
360 #ifdef CONFIG_RECV_THREAD_MODE
361 _sema recv_sema;
362 _sema terminate_recvthread_sema;
363 #endif
364
365 //_queue blk_strms[MAX_RX_NUMBLKS]; // keeping the block ack frame until return ack
366 _queue free_recv_queue;
367 _queue recv_pending_queue;
368 _queue uc_swdec_pending_queue;
369
370
371 u8 *pallocated_frame_buf;
372 u8 *precv_frame_buf;
373
374 uint free_recvframe_cnt;
375
376 _adapter *adapter;
377
378 #ifdef PLATFORM_WINDOWS
379 _nic_hdl RxPktPoolHdl;
380 _nic_hdl RxBufPoolHdl;
381
382 #ifdef PLATFORM_OS_XP
383 PMDL pbytecnt_mdl;
384 #endif
385 uint counter; //record the number that up-layer will return to drv; only when counter==0 can we release recv_priv
386 NDIS_EVENT recv_resource_evt ;
387 #endif
388
389 u32 bIsAnyNonBEPkts;
390 u64 rx_bytes;
391 u64 rx_pkts;
392 u64 rx_drop;
393
394 uint rx_icv_err;
395 uint rx_largepacket_crcerr;
396 uint rx_smallpacket_crcerr;
397 uint rx_middlepacket_crcerr;
398
399 #ifdef CONFIG_USB_HCI
400 //u8 *pallocated_urb_buf;
401 _sema allrxreturnevt;
402 uint ff_hwaddr;
403 ATOMIC_T rx_pending_cnt;
404
405 #ifdef CONFIG_USB_INTERRUPT_IN_PIPE
406 #ifdef PLATFORM_LINUX
407 PURB int_in_urb;
408 #endif
409
410 u8 *int_in_buf;
411 #endif //CONFIG_USB_INTERRUPT_IN_PIPE
412
413 #endif
414 #if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
415 #ifdef PLATFORM_FREEBSD
416 struct task irq_prepare_beacon_tasklet;
417 struct task recv_tasklet;
418 #else //PLATFORM_FREEBSD
419 struct tasklet_struct irq_prepare_beacon_tasklet;
420 struct tasklet_struct recv_tasklet;
421 #endif //PLATFORM_FREEBSD
422 struct sk_buff_head free_recv_skb_queue;
423 struct sk_buff_head rx_skb_queue;
424 #ifdef CONFIG_RX_INDICATE_QUEUE
425 struct task rx_indicate_tasklet;
426 struct ifqueue rx_indicate_queue;
427 #endif // CONFIG_RX_INDICATE_QUEUE
428
429 #endif //defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
430
431 u8 *pallocated_recv_buf;
432 u8 *precv_buf; // 4 alignment
433 _queue free_recv_buf_queue;
434 u32 free_recv_buf_queue_cnt;
435
436 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) || defined(CONFIG_USB_HCI)
437 _queue recv_buf_pending_queue;
438 #endif
439
440 #ifdef CONFIG_PCI_HCI
441 // Rx
442 struct rtw_rx_ring rx_ring[PCI_MAX_RX_QUEUE];
443 int rxringcount;
444 u16 rxbuffersize;
445 #endif
446
447 //For display the phy informatiom
448 u8 is_signal_dbg; // for debug
449 u8 signal_strength_dbg; // for debug
450
451 u8 signal_strength;
452 u8 signal_qual;
453 s8 rssi; //translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
454 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
455 struct rx_raw_rssi raw_rssi_info;
456 #endif
457 //s8 rxpwdb;
458 s16 noise;
459 //int RxSNRdB[2];
460 //s8 RxRssi[2];
461 //int FalseAlmCnt_all;
462
463
464 #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
465 _timer signal_stat_timer;
466 u32 signal_stat_sampling_interval;
467 //u32 signal_stat_converging_constant;
468 struct signal_stat signal_qual_data;
469 struct signal_stat signal_strength_data;
470 #else //CONFIG_NEW_SIGNAL_STAT_PROCESS
471 struct smooth_rssi_data signal_qual_data;
472 struct smooth_rssi_data signal_strength_data;
473 #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
474 u16 sink_udpport,pre_rtp_rxseq,cur_rtp_rxseq;
475 };
476
477 #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
478 #define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
479 #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
480
481 struct sta_recv_priv {
482
483 _lock lock;
484 sint option;
485
486 //_queue blk_strms[MAX_RX_NUMBLKS];
487 _queue defrag_q; //keeping the fragment frame until defrag
488
489 struct stainfo_rxcache rxcache;
490
491 //uint sta_rx_bytes;
492 //uint sta_rx_pkts;
493 //uint sta_rx_fail;
494
495 };
496
497
498 struct recv_buf
499 {
500 _list list;
501
502 _lock recvbuf_lock;
503
504 u32 ref_cnt;
505
506 PADAPTER adapter;
507
508 u8 *pbuf;
509 u8 *pallocated_buf;
510
511 u32 len;
512 u8 *phead;
513 u8 *pdata;
514 u8 *ptail;
515 u8 *pend;
516
517 #ifdef CONFIG_USB_HCI
518
519 #if defined(PLATFORM_OS_XP)||defined(PLATFORM_LINUX)||defined(PLATFORM_FREEBSD)
520 PURB purb;
521 dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */
522 u32 alloc_sz;
523 #endif
524
525 #ifdef PLATFORM_OS_XP
526 PIRP pirp;
527 #endif
528
529 #ifdef PLATFORM_OS_CE
530 USB_TRANSFER usb_transfer_read_port;
531 #endif
532
533 u8 irp_pending;
534 int transfer_len;
535
536 #endif
537
538 #ifdef PLATFORM_LINUX
539 _pkt *pskb;
540 #endif
541 #ifdef PLATFORM_FREEBSD //skb solution
542 struct sk_buff *pskb;
543 #endif //PLATFORM_FREEBSD //skb solution
544 };
545
546
547 /*
548 head ----->
549
550 data ----->
551
552 payload
553
554 tail ----->
555
556
557 end ----->
558
559 len = (unsigned int )(tail - data);
560
561 */
562 struct recv_frame_hdr
563 {
564 _list list;
565 #ifndef CONFIG_BSD_RX_USE_MBUF
566 struct sk_buff *pkt;
567 struct sk_buff *pkt_newalloc;
568 #else // CONFIG_BSD_RX_USE_MBUF
569 _pkt *pkt;
570 _pkt *pkt_newalloc;
571 #endif // CONFIG_BSD_RX_USE_MBUF
572
573 _adapter *adapter;
574
575 u8 fragcnt;
576
577 int frame_tag;
578
579 struct rx_pkt_attrib attrib;
580
581 uint len;
582 u8 *rx_head;
583 u8 *rx_data;
584 u8 *rx_tail;
585 u8 *rx_end;
586
587 void *precvbuf;
588
589
590 //
591 struct sta_info *psta;
592
593 //for A-MPDU Rx reordering buffer control
594 struct recv_reorder_ctrl *preorder_ctrl;
595
596 #ifdef CONFIG_WAPI_SUPPORT
597 u8 UserPriority;
598 u8 WapiTempPN[16];
599 u8 WapiSrcAddr[6];
600 u8 bWapiCheckPNInDecrypt;
601 u8 bIsWaiPacket;
602 #endif
603
604 };
605
606
607 union recv_frame{
608
609 union{
610 _list list;
611 struct recv_frame_hdr hdr;
612 uint mem[RECVFRAME_HDR_ALIGN>>2];
613 }u;
614
615 //uint mem[MAX_RXSZ>>2];
616
617 };
618
619 bool rtw_rframe_del_wfd_ie(union recv_frame *rframe, u8 ies_offset);
620
621 typedef enum _RX_PACKET_TYPE{
622 NORMAL_RX,//Normal rx packet
623 TX_REPORT1,//CCX
624 TX_REPORT2,//TX RPT
625 HIS_REPORT,// USB HISR RPT
626 C2H_PACKET
627 }RX_PACKET_TYPE, *PRX_PACKET_TYPE;
628
629 extern union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
630 extern union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
631 extern void rtw_init_recvframe(union recv_frame *precvframe ,struct recv_priv *precvpriv);
632 extern int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue);
633
634 #define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
635 extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
636 extern int rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
637
638 extern void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue);
639 u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter);
640
641 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue);
642 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue);
643 struct recv_buf *rtw_dequeue_recvbuf (_queue *queue);
644
645 void rtw_reordering_ctrl_timeout_handler(void *pcontext);
646
647 void rx_query_phy_status(union recv_frame *rframe, u8 *phy_stat);
648 int rtw_inc_and_chk_continual_no_rx_packet(struct sta_info *sta, int tid_index);
649 void rtw_reset_continual_no_rx_packet(struct sta_info *sta, int tid_index);
650
get_rxmem(union recv_frame * precvframe)651 __inline static u8 *get_rxmem(union recv_frame *precvframe)
652 {
653 //always return rx_head...
654 if(precvframe==NULL)
655 return NULL;
656
657 return precvframe->u.hdr.rx_head;
658 }
659
get_rx_status(union recv_frame * precvframe)660 __inline static u8 *get_rx_status(union recv_frame *precvframe)
661 {
662
663 return get_rxmem(precvframe);
664
665 }
666
get_recvframe_data(union recv_frame * precvframe)667 __inline static u8 *get_recvframe_data(union recv_frame *precvframe)
668 {
669
670 //alwasy return rx_data
671 if(precvframe==NULL)
672 return NULL;
673
674 return precvframe->u.hdr.rx_data;
675
676 }
677
recvframe_push(union recv_frame * precvframe,sint sz)678 __inline static u8 *recvframe_push(union recv_frame *precvframe, sint sz)
679 {
680 // append data before rx_data
681
682 /* add data to the start of recv_frame
683 *
684 * This function extends the used data area of the recv_frame at the buffer
685 * start. rx_data must be still larger than rx_head, after pushing.
686 */
687
688 if(precvframe==NULL)
689 return NULL;
690
691
692 precvframe->u.hdr.rx_data -= sz ;
693 if( precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head )
694 {
695 precvframe->u.hdr.rx_data += sz ;
696 return NULL;
697 }
698
699 precvframe->u.hdr.len +=sz;
700
701 return precvframe->u.hdr.rx_data;
702
703 }
704
705
recvframe_pull(union recv_frame * precvframe,sint sz)706 __inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
707 {
708 // rx_data += sz; move rx_data sz bytes hereafter
709
710 //used for extract sz bytes from rx_data, update rx_data and return the updated rx_data to the caller
711
712
713 if(precvframe==NULL)
714 return NULL;
715
716
717 precvframe->u.hdr.rx_data += sz;
718
719 if(precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail)
720 {
721 precvframe->u.hdr.rx_data -= sz;
722 return NULL;
723 }
724
725 precvframe->u.hdr.len -=sz;
726
727 return precvframe->u.hdr.rx_data;
728
729 }
730
recvframe_put(union recv_frame * precvframe,sint sz)731 __inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
732 {
733 // rx_tai += sz; move rx_tail sz bytes hereafter
734
735 //used for append sz bytes from ptr to rx_tail, update rx_tail and return the updated rx_tail to the caller
736 //after putting, rx_tail must be still larger than rx_end.
737 unsigned char * prev_rx_tail;
738
739 /* DBG_871X("recvframe_put: len=%d\n", sz); */
740
741 if(precvframe==NULL)
742 return NULL;
743
744 prev_rx_tail = precvframe->u.hdr.rx_tail;
745
746 precvframe->u.hdr.rx_tail += sz;
747
748 if(precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end)
749 {
750 precvframe->u.hdr.rx_tail -= sz;
751 return NULL;
752 }
753
754 precvframe->u.hdr.len +=sz;
755
756 return precvframe->u.hdr.rx_tail;
757
758 }
759
760
761
recvframe_pull_tail(union recv_frame * precvframe,sint sz)762 __inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
763 {
764 // rmv data from rx_tail (by yitsen)
765
766 //used for extract sz bytes from rx_end, update rx_end and return the updated rx_end to the caller
767 //after pulling, rx_end must be still larger than rx_data.
768
769 if(precvframe==NULL)
770 return NULL;
771
772 precvframe->u.hdr.rx_tail -= sz;
773
774 if(precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data)
775 {
776 precvframe->u.hdr.rx_tail += sz;
777 return NULL;
778 }
779
780 precvframe->u.hdr.len -=sz;
781
782 return precvframe->u.hdr.rx_tail;
783
784 }
785
786
787
get_rxbuf_desc(union recv_frame * precvframe)788 __inline static _buffer * get_rxbuf_desc(union recv_frame *precvframe)
789 {
790 _buffer * buf_desc;
791
792 if(precvframe==NULL)
793 return NULL;
794 #ifdef PLATFORM_WINDOWS
795 NdisQueryPacket(precvframe->u.hdr.pkt, NULL, NULL, &buf_desc, NULL);
796 #endif
797
798 return buf_desc;
799 }
800
801
rxmem_to_recvframe(u8 * rxmem)802 __inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem)
803 {
804 //due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame
805 //from any given member of recv_frame.
806 // rxmem indicates the any member/address in recv_frame
807
808 return (union recv_frame*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
809
810 }
811
pkt_to_recvframe(_pkt * pkt)812 __inline static union recv_frame *pkt_to_recvframe(_pkt *pkt)
813 {
814
815 u8 * buf_star;
816 union recv_frame * precv_frame;
817 #ifdef PLATFORM_WINDOWS
818 _buffer * buf_desc;
819 uint len;
820
821 NdisQueryPacket(pkt, NULL, NULL, &buf_desc, &len);
822 NdisQueryBufferSafe(buf_desc, &buf_star, &len, HighPagePriority);
823 #endif
824 precv_frame = rxmem_to_recvframe((unsigned char*)buf_star);
825
826 return precv_frame;
827 }
828
pkt_to_recvmem(_pkt * pkt)829 __inline static u8 *pkt_to_recvmem(_pkt *pkt)
830 {
831 // return the rx_head
832
833 union recv_frame * precv_frame = pkt_to_recvframe(pkt);
834
835 return precv_frame->u.hdr.rx_head;
836
837 }
838
pkt_to_recvdata(_pkt * pkt)839 __inline static u8 *pkt_to_recvdata(_pkt *pkt)
840 {
841 // return the rx_data
842
843 union recv_frame * precv_frame =pkt_to_recvframe(pkt);
844
845 return precv_frame->u.hdr.rx_data;
846
847 }
848
849
get_recvframe_len(union recv_frame * precvframe)850 __inline static sint get_recvframe_len(union recv_frame *precvframe)
851 {
852 return precvframe->u.hdr.len;
853 }
854
855
translate_percentage_to_dbm(u32 SignalStrengthIndex)856 __inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
857 {
858 s32 SignalPower; // in dBm.
859
860 #ifdef CONFIG_SIGNAL_SCALE_MAPPING
861 /* Translate to dBm (x=0.5y-95). */
862 SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
863 SignalPower -= 95;
864 #else
865 /* Translate to dBm (x=y-100) */
866 SignalPower = SignalStrengthIndex - 100;
867 #endif
868
869 return SignalPower;
870 }
871
872
873 struct sta_info;
874
875 extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
876
877 extern void mgt_dispatcher(_adapter *padapter, union recv_frame *precv_frame);
878
879 #endif
880
881