1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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.
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
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
19 ******************************************************************************/
23 #ifdef CONFIG_SINGLE_RECV_BUF
24 #define NR_RECVBUFF (1)
26 #define NR_RECVBUFF (8)
27 #endif //CONFIG_SINGLE_RECV_BUF
29 #define NR_PREALLOC_RECV_SKB (8)
31 #define NR_RECVFRAME 256
33 #define RXFRAME_ALIGN 8
34 #define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN)
36 #define DRVINFO_SZ 4 // unit is 8bytes
38 #define MAX_RXFRAME_CNT 512
39 #define MAX_RX_NUMBLKS (32)
40 #define RECVFRAME_HDR_ALIGN 128
43 #define PHY_RSSI_SLID_WIN_MAX 100
44 #define PHY_LINKQUALITY_SLID_WIN_MAX 20
47 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
49 #define RX_MPDU_QUEUE 0
50 #define RX_CMD_QUEUE 1
51 #define RX_MAX_QUEUE 2
53 static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
55 static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
56 static u8 SNAP_ETH_TYPE_APPLETALK_DDP[2] = {0x80, 0x9b};
57 static u8 SNAP_ETH_TYPE_TDLS[2] = {0x89, 0x0d};
58 static u8 SNAP_HDR_APPLETALK_DDP[3] = {0x08, 0x00, 0x07}; // Datagram Delivery Protocol
60 static u8 oui_8021h[] = {0x00, 0x00, 0xf8};
61 static u8 oui_rfc1042[]= {0x00,0x00,0x00};
63 #define MAX_SUBFRAME_COUNT 64
64 static u8 rtw_rfc1042_header[] =
65 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
66 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
67 static u8 rtw_bridge_tunnel_header[] =
68 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
70 //for Rx reordering buffer control
71 struct recv_reorder_ctrl
75 u16 indicate_seq;//=wstart_b, init_value=0xffff
78 _queue pending_recvframe_queue;
79 _timer reordering_ctrl_timer;
82 struct stainfo_rxcache {
85 unsigned short tid0_rxseq;
86 unsigned short tid1_rxseq;
87 unsigned short tid2_rxseq;
88 unsigned short tid3_rxseq;
89 unsigned short tid4_rxseq;
90 unsigned short tid5_rxseq;
91 unsigned short tid6_rxseq;
92 unsigned short tid7_rxseq;
93 unsigned short tid8_rxseq;
94 unsigned short tid9_rxseq;
95 unsigned short tid10_rxseq;
96 unsigned short tid11_rxseq;
97 unsigned short tid12_rxseq;
98 unsigned short tid13_rxseq;
99 unsigned short tid14_rxseq;
100 unsigned short tid15_rxseq;
105 struct smooth_rssi_data {
106 u32 elements[100]; //array to store values
107 u32 index; //index to current array to store
108 u32 total_num; //num of valid elements
109 u32 total_val; //sum of valid elements
113 u8 update_req; //used to indicate
114 u8 avg_val; //avg of valid elements
115 u32 total_num; //num of valid elements
116 u32 total_val; //sum of valid elements
119 typedef struct _ODM_Phy_Status_Info_
122 // Be care, if you want to add any element please insert between
123 // RxPWDBAll & SignalStrength.
127 u1Byte SignalQuality; // in 0-100 index.
128 s8 RxMIMOSignalQuality[4]; //per-path's EVM
129 u1Byte RxMIMOEVMdbm[4]; //per-path's EVM dbm
131 u1Byte RxMIMOSignalStrength[4];// in 0~100 index
133 u2Byte Cfo_short[4]; // per-path's Cfo_short
134 u2Byte Cfo_tail[4]; // per-path's Cfo_tail
136 s8 RxPower; // in dBm Translate from PWdB
137 s8 RecvSignalPower; // Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures.
138 u1Byte BTRxRSSIPercentage;
139 u1Byte SignalStrength; // in 0-100 index.
141 u1Byte RxPwr[4]; //per-path's pwdb
143 u1Byte RxSNR[4]; //per-path's SNR
145 u1Byte btCoexPwrAdjust;
146 }ODM_PHY_INFO_T,*PODM_PHY_INFO_T;
153 u8 SignalQuality; // in 0-100 index.
154 s8 RxMIMOSignalQuality[4]; //per-path's EVM
155 u8 RxMIMOEVMdbm[4]; //per-path's EVM dbm
157 u8 RxMIMOSignalStrength[4];// in 0~100 index
159 u16 Cfo_short[4]; // per-path's Cfo_short
160 u16 Cfo_tail[4]; // per-path's Cfo_tail
162 s8 RxPower; // in dBm Translate from PWdB
163 s8 RecvSignalPower;// Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures.
164 u8 BTRxRSSIPercentage;
165 u8 SignalStrength; // in 0-100 index.
167 s8 RxPwr[4]; //per-path's pwdb
168 u8 RxSNR[4]; //per-path's SNR
173 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
180 u8 mimo_singal_strength[4];// in 0~100 index
181 u8 mimo_singal_quality[4];
189 struct rx_pkt_attrib {
194 u8 hdrlen; //the WLAN Header Len
205 u8 privacy; //in frame_ctrl field
207 u8 encrypt; //when 0 indicate no encrypt. when non-zero, indicate the encrypt algorith
223 //#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
224 u8 tcpchk_valid; // 0: invalid, 1: valid
225 u8 ip_chkrpt; //0: incorrect, 1: correct
226 u8 tcp_chkrpt; //0: incorrect, 1: correct
233 u32 MacIDValidEntry[2]; // 64 bits present 64 entry.
237 s8 rx_mimo_signal_qual[2];
242 struct phy_info phy_info;
246 //These definition is used for Rx packet reordering.
247 #define SN_LESS(a, b) (((a-b)&0x800)!=0)
248 #define SN_EQUAL(a, b) (a == b)
249 //#define REORDER_WIN_SIZE 128
250 //#define REORDER_ENTRY_NUM 128
251 #define REORDER_WAIT_TIME (50) // (ms)
253 #define RECVBUFF_ALIGN_SZ 8
255 #define RXDESC_SIZE 24
256 #define RXDESC_OFFSET RXDESC_SIZE
268 #ifndef BUF_DESC_ARCH
273 #endif //if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words
279 accesser of recv_priv: rtw_recv_entry(dispatch / passive level); recv_thread(passive) ; returnpkt(dispatch)
282 using enter_critical section to protect
288 //_queue blk_strms[MAX_RX_NUMBLKS]; // keeping the block ack frame until return ack
289 _queue free_recv_queue;
290 _queue recv_pending_queue;
291 _queue uc_swdec_pending_queue;
294 u8 *pallocated_frame_buf;
297 uint free_recvframe_cnt;
307 uint rx_largepacket_crcerr;
308 uint rx_smallpacket_crcerr;
309 uint rx_middlepacket_crcerr;
311 struct tasklet_struct irq_prepare_beacon_tasklet;
312 struct tasklet_struct recv_tasklet;
313 struct sk_buff_head free_recv_skb_queue;
314 struct sk_buff_head rx_skb_queue;
315 #ifdef CONFIG_RX_INDICATE_QUEUE
316 struct task rx_indicate_tasklet;
317 struct ifqueue rx_indicate_queue;
318 #endif // CONFIG_RX_INDICATE_QUEUE
320 u8 *pallocated_recv_buf;
321 u8 *precv_buf; // 4 alignment
322 _queue free_recv_buf_queue;
323 u32 free_recv_buf_queue_cnt;
325 _queue recv_buf_pending_queue;
327 //For display the phy informatiom
328 u8 is_signal_dbg; // for debug
329 u8 signal_strength_dbg; // for debug
333 s8 rssi; //translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
334 #ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
335 struct rx_raw_rssi raw_rssi_info;
341 //int FalseAlmCnt_all;
344 _timer signal_stat_timer;
345 u32 signal_stat_sampling_interval;
346 //u32 signal_stat_converging_constant;
347 struct signal_stat signal_qual_data;
348 struct signal_stat signal_strength_data;
351 #define rtw_set_signal_stat_timer(recvpriv) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
353 struct sta_recv_priv {
358 //_queue blk_strms[MAX_RX_NUMBLKS];
359 _queue defrag_q; //keeping the fragment frame until defrag
361 struct stainfo_rxcache rxcache;
406 len = (unsigned int )(tail - data);
409 struct recv_frame_hdr
412 #ifndef CONFIG_BSD_RX_USE_MBUF
414 struct sk_buff *pkt_newalloc;
415 #else // CONFIG_BSD_RX_USE_MBUF
418 #endif // CONFIG_BSD_RX_USE_MBUF
426 struct rx_pkt_attrib attrib;
438 struct sta_info *psta;
440 //for A-MPDU Rx reordering buffer control
441 struct recv_reorder_ctrl *preorder_ctrl;
449 struct recv_frame_hdr hdr;
450 uint mem[RECVFRAME_HDR_ALIGN>>2];
453 //uint mem[MAX_RXSZ>>2];
457 typedef enum _RX_PACKET_TYPE{
458 NORMAL_RX,//Normal rx packet
461 HIS_REPORT,// USB HISR RPT
463 }RX_PACKET_TYPE, *PRX_PACKET_TYPE;
465 extern union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
466 extern union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue); //get a free recv_frame from pfree_recv_queue
467 extern int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue);
469 #define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
470 extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
471 extern int rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue);
473 extern void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue);
474 u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter);
476 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue);
477 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue);
478 struct recv_buf *rtw_dequeue_recvbuf (_queue *queue);
480 void rtw_reordering_ctrl_timeout_handler(void *pcontext);
482 __inline static u8 *get_rxmem(union recv_frame *precvframe)
484 //always return rx_head...
488 return precvframe->u.hdr.rx_head;
491 __inline static u8 *get_recvframe_data(union recv_frame *precvframe)
494 //alwasy return rx_data
498 return precvframe->u.hdr.rx_data;
502 __inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
504 // rx_data += sz; move rx_data sz bytes hereafter
506 //used for extract sz bytes from rx_data, update rx_data and return the updated rx_data to the caller
513 precvframe->u.hdr.rx_data += sz;
515 if(precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail)
517 precvframe->u.hdr.rx_data -= sz;
521 precvframe->u.hdr.len -=sz;
523 return precvframe->u.hdr.rx_data;
527 __inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz)
529 // rx_tai += sz; move rx_tail sz bytes hereafter
531 //used for append sz bytes from ptr to rx_tail, update rx_tail and return the updated rx_tail to the caller
532 //after putting, rx_tail must be still larger than rx_end.
533 unsigned char * prev_rx_tail;
538 prev_rx_tail = precvframe->u.hdr.rx_tail;
540 precvframe->u.hdr.rx_tail += sz;
542 if(precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end)
544 precvframe->u.hdr.rx_tail -= sz;
548 precvframe->u.hdr.len +=sz;
550 return precvframe->u.hdr.rx_tail;
556 __inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
558 // rmv data from rx_tail (by yitsen)
560 //used for extract sz bytes from rx_end, update rx_end and return the updated rx_end to the caller
561 //after pulling, rx_end must be still larger than rx_data.
566 precvframe->u.hdr.rx_tail -= sz;
568 if(precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data)
570 precvframe->u.hdr.rx_tail += sz;
574 precvframe->u.hdr.len -=sz;
576 return precvframe->u.hdr.rx_tail;
580 __inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem)
582 //due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame
583 //from any given member of recv_frame.
584 // rxmem indicates the any member/address in recv_frame
586 return (union recv_frame*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
590 __inline static sint get_recvframe_len(union recv_frame *precvframe)
592 return precvframe->u.hdr.len;
596 __inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
598 s32 SignalPower; // in dBm.
600 #ifdef CONFIG_SKIP_SIGNAL_SCALE_MAPPING
601 // Translate to dBm (x=y-100)
602 SignalPower = SignalStrengthIndex - 100;
604 // Translate to dBm (x=0.5y-95).
605 SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
615 extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
617 extern void mgt_dispatcher(_adapter *padapter, union recv_frame *precv_frame);