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 _completion recvthread_comp;
364 #endif
365
366 //_queue blk_strms[MAX_RX_NUMBLKS]; // keeping the block ack frame until return ack
367 _queue free_recv_queue;
368 _queue recv_pending_queue;
369 _queue uc_swdec_pending_queue;
370
371
372 u8 *pallocated_frame_buf;
373 u8 *precv_frame_buf;
374
375 uint free_recvframe_cnt;
376
377 _adapter *adapter;
378
379 #ifdef PLATFORM_WINDOWS
380 _nic_hdl RxPktPoolHdl;
381 _nic_hdl RxBufPoolHdl;
382
383 #ifdef PLATFORM_OS_XP
384 PMDL pbytecnt_mdl;
385 #endif
386 uint counter; //record the number that up-layer will return to drv; only when counter==0 can we release recv_priv
387 NDIS_EVENT recv_resource_evt ;
388 #endif
389
390 u32 bIsAnyNonBEPkts;
391 u64 rx_bytes;
392 u64 rx_pkts;
393 u64 rx_drop;
394
395 uint rx_icv_err;
396 uint rx_largepacket_crcerr;
397 uint rx_smallpacket_crcerr;
398 uint rx_middlepacket_crcerr;
399
400 #ifdef CONFIG_USB_HCI
401 //u8 *pallocated_urb_buf;
402 _sema allrxreturnevt;
403 uint ff_hwaddr;
404 ATOMIC_T rx_pending_cnt;
405
406 #ifdef CONFIG_USB_INTERRUPT_IN_PIPE
407 #ifdef PLATFORM_LINUX
408 PURB int_in_urb;
409 #endif
410
411 u8 *int_in_buf;
412 #endif //CONFIG_USB_INTERRUPT_IN_PIPE
413
414 #endif
415 #if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
416 #ifdef PLATFORM_FREEBSD
417 struct task irq_prepare_beacon_tasklet;
418 struct task recv_tasklet;
419 #else //PLATFORM_FREEBSD
420 struct tasklet_struct irq_prepare_beacon_tasklet;
421 struct tasklet_struct recv_tasklet;
422 #endif //PLATFORM_FREEBSD
423 struct sk_buff_head free_recv_skb_queue;
424 struct sk_buff_head rx_skb_queue;
425 #ifdef CONFIG_RX_INDICATE_QUEUE
426 struct task rx_indicate_tasklet;
427 struct ifqueue rx_indicate_queue;
428 #endif // CONFIG_RX_INDICATE_QUEUE
429
430 #endif //defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD)
431
432 u8 *pallocated_recv_buf;
433 u8 *precv_buf; // 4 alignment
434 _queue free_recv_buf_queue;
435 u32 free_recv_buf_queue_cnt;
436
437 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) || defined(CONFIG_USB_HCI)
438 _queue recv_buf_pending_queue;
439 #endif
440
441 #ifdef CONFIG_PCI_HCI
442 // Rx
443 struct rtw_rx_ring rx_ring[PCI_MAX_RX_QUEUE];
444 int rxringcount;
445 u16 rxbuffersize;
446 #endif
447
448 //For display the phy informatiom
449 u8 is_signal_dbg; // for debug
450 u8 signal_strength_dbg; // for debug
451
452 u8 signal_strength;
453 u8 signal_qual;
454 s8 rssi; //translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
455 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
456 struct rx_raw_rssi raw_rssi_info;
457 #endif
458 //s8 rxpwdb;
459 s16 noise;
460 //int RxSNRdB[2];
461 //s8 RxRssi[2];
462 //int FalseAlmCnt_all;
463
464
465 #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
466 _timer signal_stat_timer;
467 u32 signal_stat_sampling_interval;
468 //u32 signal_stat_converging_constant;
469 struct signal_stat signal_qual_data;
470 struct signal_stat signal_strength_data;
471 #else //CONFIG_NEW_SIGNAL_STAT_PROCESS
472 struct smooth_rssi_data signal_qual_data;
473 struct smooth_rssi_data signal_strength_data;
474 #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
475 u16 sink_udpport,pre_rtp_rxseq,cur_rtp_rxseq;
476 };
477
478 #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
479 #define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
480 #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
481
482 struct sta_recv_priv {
483
484 _lock lock;
485 sint option;
486
487 //_queue blk_strms[MAX_RX_NUMBLKS];
488 _queue defrag_q; //keeping the fragment frame until defrag
489
490 struct stainfo_rxcache rxcache;
491
492 //uint sta_rx_bytes;
493 //uint sta_rx_pkts;
494 //uint sta_rx_fail;
495
496 };
497
498
499 struct recv_buf
500 {
501 _list list;
502
503 _lock recvbuf_lock;
504
505 u32 ref_cnt;
506
507 PADAPTER adapter;
508
509 u8 *pbuf;
510 u8 *pallocated_buf;
511
512 u32 len;
513 u8 *phead;
514 u8 *pdata;
515 u8 *ptail;
516 u8 *pend;
517
518 #ifdef CONFIG_USB_HCI
519
520 #if defined(PLATFORM_OS_XP)||defined(PLATFORM_LINUX)||defined(PLATFORM_FREEBSD)
521 PURB purb;
522 dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */
523 u32 alloc_sz;
524 #endif
525
526 #ifdef PLATFORM_OS_XP
527 PIRP pirp;
528 #endif
529
530 #ifdef PLATFORM_OS_CE
531 USB_TRANSFER usb_transfer_read_port;
532 #endif
533
534 u8 irp_pending;
535 int transfer_len;
536
537 #endif
538
539 #ifdef PLATFORM_LINUX
540 _pkt *pskb;
541 #endif
542 #ifdef PLATFORM_FREEBSD //skb solution
543 struct sk_buff *pskb;
544 #endif //PLATFORM_FREEBSD //skb solution
545 };
546
547
548 /*
549 head ----->
550
551 data ----->
552
553 payload
554
555 tail ----->
556
557
558 end ----->
559
560 len = (unsigned int )(tail - data);
561
562 */
563 struct recv_frame_hdr
564 {
565 _list list;
566 #ifndef CONFIG_BSD_RX_USE_MBUF
567 struct sk_buff *pkt;
568 struct sk_buff *pkt_newalloc;
569 #else // CONFIG_BSD_RX_USE_MBUF
570 _pkt *pkt;
571 _pkt *pkt_newalloc;
572 #endif // CONFIG_BSD_RX_USE_MBUF
573
574 _adapter *adapter;
575
576 u8 fragcnt;
577
578 int frame_tag;
579
580 struct rx_pkt_attrib attrib;
581
582 uint len;
583 u8 *rx_head;
584 u8 *rx_data;
585 u8 *rx_tail;
586 u8 *rx_end;
587
588 void *precvbuf;
589
590
591 //
592 struct sta_info *psta;
593
594 //for A-MPDU Rx reordering buffer control
595 struct recv_reorder_ctrl *preorder_ctrl;
596
597 #ifdef CONFIG_WAPI_SUPPORT
598 u8 UserPriority;
599 u8 WapiTempPN[16];
600 u8 WapiSrcAddr[6];
601 u8 bWapiCheckPNInDecrypt;
602 u8 bIsWaiPacket;
603 #endif
604
605 };
606
607
608 union recv_frame{
609
610 union{
611 _list list;
612 struct recv_frame_hdr hdr;
613 uint mem[RECVFRAME_HDR_ALIGN>>2];
614 }u;
615
616 //uint mem[MAX_RXSZ>>2];
617
618 };
619
620 typedef enum _RX_PACKET_TYPE{
621 NORMAL_RX,//Normal rx packet
622 TX_REPORT1,//CCX
623 TX_REPORT2,//TX RPT
624 HIS_REPORT,// USB HISR RPT
625 C2H_PACKET
626 }RX_PACKET_TYPE, *PRX_PACKET_TYPE;
627
628 extern union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
629 extern union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
630 extern void rtw_init_recvframe(union recv_frame *precvframe ,struct recv_priv *precvpriv);
631 extern int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue);
632
633 #define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
634 extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
635 extern int rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
636
637 extern void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue);
638 u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter);
639
640 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue);
641 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue);
642 struct recv_buf *rtw_dequeue_recvbuf (_queue *queue);
643
644 void rtw_reordering_ctrl_timeout_handler(void *pcontext);
645
646 void rx_query_phy_status(union recv_frame *rframe, u8 *phy_stat);
647 int rtw_inc_and_chk_continual_no_rx_packet(struct sta_info *sta, int tid_index);
648 void rtw_reset_continual_no_rx_packet(struct sta_info *sta, int tid_index);
649
get_rxmem(union recv_frame * precvframe)650 __inline static u8 *get_rxmem(union recv_frame *precvframe)
651 {
652 //always return rx_head...
653 if(precvframe==NULL)
654 return NULL;
655
656 return precvframe->u.hdr.rx_head;
657 }
658
get_rx_status(union recv_frame * precvframe)659 __inline static u8 *get_rx_status(union recv_frame *precvframe)
660 {
661
662 return get_rxmem(precvframe);
663
664 }
665
get_recvframe_data(union recv_frame * precvframe)666 __inline static u8 *get_recvframe_data(union recv_frame *precvframe)
667 {
668
669 //alwasy return rx_data
670 if(precvframe==NULL)
671 return NULL;
672
673 return precvframe->u.hdr.rx_data;
674
675 }
676
recvframe_push(union recv_frame * precvframe,sint sz)677 __inline static u8 *recvframe_push(union recv_frame *precvframe, sint sz)
678 {
679 // append data before rx_data
680
681 /* add data to the start of recv_frame
682 *
683 * This function extends the used data area of the recv_frame at the buffer
684 * start. rx_data must be still larger than rx_head, after pushing.
685 */
686
687 if(precvframe==NULL)
688 return NULL;
689
690
691 precvframe->u.hdr.rx_data -= sz ;
692 if( precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head )
693 {
694 precvframe->u.hdr.rx_data += sz ;
695 return NULL;
696 }
697
698 precvframe->u.hdr.len +=sz;
699
700 return precvframe->u.hdr.rx_data;
701
702 }
703
704
recvframe_pull(union recv_frame * precvframe,sint sz)705 __inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
706 {
707 // rx_data += sz; move rx_data sz bytes hereafter
708
709 //used for extract sz bytes from rx_data, update rx_data and return the updated rx_data to the caller
710
711
712 if(precvframe==NULL)
713 return NULL;
714
715
716 precvframe->u.hdr.rx_data += sz;
717
718 if(precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail)
719 {
720 precvframe->u.hdr.rx_data -= sz;
721 return NULL;
722 }
723
724 precvframe->u.hdr.len -=sz;
725
726 return precvframe->u.hdr.rx_data;
727
728 }
729
recvframe_put(union recv_frame * precvframe,sint sz)730 __inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
731 {
732 // rx_tai += sz; move rx_tail sz bytes hereafter
733
734 //used for append sz bytes from ptr to rx_tail, update rx_tail and return the updated rx_tail to the caller
735 //after putting, rx_tail must be still larger than rx_end.
736 unsigned char * prev_rx_tail;
737
738 /* DBG_871X("recvframe_put: len=%d\n", sz); */
739
740 if(precvframe==NULL)
741 return NULL;
742
743 prev_rx_tail = precvframe->u.hdr.rx_tail;
744
745 precvframe->u.hdr.rx_tail += sz;
746
747 if(precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end)
748 {
749 precvframe->u.hdr.rx_tail -= sz;
750 return NULL;
751 }
752
753 precvframe->u.hdr.len +=sz;
754
755 return precvframe->u.hdr.rx_tail;
756
757 }
758
759
760
recvframe_pull_tail(union recv_frame * precvframe,sint sz)761 __inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
762 {
763 // rmv data from rx_tail (by yitsen)
764
765 //used for extract sz bytes from rx_end, update rx_end and return the updated rx_end to the caller
766 //after pulling, rx_end must be still larger than rx_data.
767
768 if(precvframe==NULL)
769 return NULL;
770
771 precvframe->u.hdr.rx_tail -= sz;
772
773 if(precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data)
774 {
775 precvframe->u.hdr.rx_tail += sz;
776 return NULL;
777 }
778
779 precvframe->u.hdr.len -=sz;
780
781 return precvframe->u.hdr.rx_tail;
782
783 }
784
785
786
get_rxbuf_desc(union recv_frame * precvframe)787 __inline static _buffer * get_rxbuf_desc(union recv_frame *precvframe)
788 {
789 _buffer * buf_desc;
790
791 if(precvframe==NULL)
792 return NULL;
793 #ifdef PLATFORM_WINDOWS
794 NdisQueryPacket(precvframe->u.hdr.pkt, NULL, NULL, &buf_desc, NULL);
795 #endif
796
797 return buf_desc;
798 }
799
800
rxmem_to_recvframe(u8 * rxmem)801 __inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem)
802 {
803 //due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame
804 //from any given member of recv_frame.
805 // rxmem indicates the any member/address in recv_frame
806
807 return (union recv_frame*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
808
809 }
810
pkt_to_recvframe(_pkt * pkt)811 __inline static union recv_frame *pkt_to_recvframe(_pkt *pkt)
812 {
813
814 u8 * buf_star;
815 union recv_frame * precv_frame;
816 #ifdef PLATFORM_WINDOWS
817 _buffer * buf_desc;
818 uint len;
819
820 NdisQueryPacket(pkt, NULL, NULL, &buf_desc, &len);
821 NdisQueryBufferSafe(buf_desc, &buf_star, &len, HighPagePriority);
822 #endif
823 precv_frame = rxmem_to_recvframe((unsigned char*)buf_star);
824
825 return precv_frame;
826 }
827
pkt_to_recvmem(_pkt * pkt)828 __inline static u8 *pkt_to_recvmem(_pkt *pkt)
829 {
830 // return the rx_head
831
832 union recv_frame * precv_frame = pkt_to_recvframe(pkt);
833
834 return precv_frame->u.hdr.rx_head;
835
836 }
837
pkt_to_recvdata(_pkt * pkt)838 __inline static u8 *pkt_to_recvdata(_pkt *pkt)
839 {
840 // return the rx_data
841
842 union recv_frame * precv_frame =pkt_to_recvframe(pkt);
843
844 return precv_frame->u.hdr.rx_data;
845
846 }
847
848
get_recvframe_len(union recv_frame * precvframe)849 __inline static sint get_recvframe_len(union recv_frame *precvframe)
850 {
851 return precvframe->u.hdr.len;
852 }
853
854
translate_percentage_to_dbm(u32 SignalStrengthIndex)855 __inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
856 {
857 s32 SignalPower; // in dBm.
858
859 #ifdef CONFIG_SIGNAL_SCALE_MAPPING
860 /* Translate to dBm (x=0.5y-95). */
861 SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
862 SignalPower -= 95;
863 #else
864 /* Translate to dBm (x=y-100) */
865 SignalPower = SignalStrengthIndex - 100;
866 #endif
867
868 return SignalPower;
869 }
870
871
872 struct sta_info;
873
874 extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
875
876 extern void mgt_dispatcher(_adapter *padapter, union recv_frame *precv_frame);
877
878 #endif
879
880