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