1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _RTL871X_RECV_H_ 3 #define _RTL871X_RECV_H_ 4 5 #include "osdep_service.h" 6 #include "drv_types.h" 7 8 #define NR_RECVFRAME 256 9 10 #define RXFRAME_ALIGN 8 11 #define RXFRAME_ALIGN_SZ (1 << RXFRAME_ALIGN) 12 13 #define MAX_SUBFRAME_COUNT 64 14 15 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) 16 17 /* for Rx reordering buffer control */ 18 struct recv_reorder_ctrl { 19 struct _adapter *padapter; 20 u16 indicate_seq; /* =wstart_b, init_value=0xffff */ 21 u16 wend_b; 22 u8 wsize_b; 23 struct __queue pending_recvframe_queue; 24 struct timer_list reordering_ctrl_timer; 25 }; 26 27 struct stainfo_rxcache { 28 u16 tid_rxseq[16]; 29 }; 30 31 #define PHY_RSSI_SLID_WIN_MAX 100 32 #define PHY_LINKQUALITY_SLID_WIN_MAX 20 33 34 35 struct smooth_rssi_data { 36 u32 elements[100]; /* array to store values */ 37 u32 index; /* index to current array to store */ 38 u32 total_num; /* num of valid elements */ 39 u32 total_val; /* sum of valid elements */ 40 }; 41 42 struct rx_pkt_attrib { 43 44 u8 amsdu; 45 u8 order; 46 u8 qos; 47 u8 to_fr_ds; 48 u8 frag_num; 49 u16 seq_num; 50 u8 pw_save; 51 u8 mfrag; 52 u8 mdata; 53 u8 privacy; /* in frame_ctrl field */ 54 u8 bdecrypted; 55 int hdrlen; /* the WLAN Header Len */ 56 int encrypt; /* 0 no encrypt. != 0 encrypt algorith */ 57 int iv_len; 58 int icv_len; 59 int priority; 60 int ack_policy; 61 u8 crc_err; 62 u8 dst[ETH_ALEN]; 63 u8 src[ETH_ALEN]; 64 u8 ta[ETH_ALEN]; 65 u8 ra[ETH_ALEN]; 66 u8 bssid[ETH_ALEN]; 67 u8 tcpchk_valid; /* 0: invalid, 1: valid */ 68 u8 ip_chkrpt; /* 0: incorrect, 1: correct */ 69 u8 tcp_chkrpt; /* 0: incorrect, 1: correct */ 70 u8 signal_qual; 71 s8 rx_mimo_signal_qual[2]; 72 u8 mcs_rate; 73 u8 htc; 74 u8 signal_strength; 75 }; 76 77 /* 78 * accesser of recv_priv: recv_entry(dispatch / passive level); 79 * recv_thread(passive) ; returnpkt(dispatch) 80 * ; halt(passive) ; 81 * 82 * using enter_critical section to protect 83 */ 84 struct recv_priv { 85 spinlock_t lock; 86 struct __queue free_recv_queue; 87 struct __queue recv_pending_queue; 88 u8 *pallocated_frame_buf; 89 u8 *precv_frame_buf; 90 uint free_recvframe_cnt; 91 struct _adapter *adapter; 92 uint rx_bytes; 93 uint rx_pkts; 94 uint rx_drop; 95 uint rx_icv_err; 96 uint rx_largepacket_crcerr; 97 uint rx_smallpacket_crcerr; 98 uint rx_middlepacket_crcerr; 99 u8 rx_pending_cnt; 100 uint ff_hwaddr; 101 struct tasklet_struct recv_tasklet; 102 struct sk_buff_head free_recv_skb_queue; 103 struct sk_buff_head rx_skb_queue; 104 u8 *pallocated_recv_buf; 105 u8 *precv_buf; /* 4 alignment */ 106 struct __queue free_recv_buf_queue; 107 u32 free_recv_buf_queue_cnt; 108 /* For the phy informatiom */ 109 s8 rssi; 110 u8 signal; 111 u8 noise; 112 u8 fw_rssi; 113 struct smooth_rssi_data signal_qual_data; 114 struct smooth_rssi_data signal_strength_data; 115 }; 116 117 struct sta_recv_priv { 118 spinlock_t lock; 119 sint option; 120 struct __queue defrag_q; /* keeping the fragment frame until defrag */ 121 struct stainfo_rxcache rxcache; 122 uint sta_rx_bytes; 123 uint sta_rx_pkts; 124 uint sta_rx_fail; 125 }; 126 127 #include "rtl8712_recv.h" 128 129 /* get a free recv_frame from pfree_recv_queue */ 130 union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue); 131 int r8712_free_recvframe(union recv_frame *precvframe, 132 struct __queue *pfree_recv_queue); 133 void r8712_free_recvframe_queue(struct __queue *pframequeue, 134 struct __queue *pfree_recv_queue); 135 int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe); 136 int recv_func(struct _adapter *padapter, void *pcontext); 137 138 static inline u8 *get_rxmem(union recv_frame *precvframe) 139 { 140 /* always return rx_head... */ 141 if (precvframe == NULL) 142 return NULL; 143 return precvframe->u.hdr.rx_head; 144 } 145 146 static inline u8 *get_recvframe_data(union recv_frame *precvframe) 147 { 148 /* always return rx_data */ 149 if (precvframe == NULL) 150 return NULL; 151 return precvframe->u.hdr.rx_data; 152 } 153 154 static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz) 155 { 156 /* used for extract sz bytes from rx_data, update rx_data and return 157 * the updated rx_data to the caller 158 */ 159 if (precvframe == NULL) 160 return NULL; 161 precvframe->u.hdr.rx_data += sz; 162 if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) { 163 precvframe->u.hdr.rx_data -= sz; 164 return NULL; 165 } 166 precvframe->u.hdr.len -= sz; 167 return precvframe->u.hdr.rx_data; 168 } 169 170 static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz) 171 { 172 /* used for append sz bytes from ptr to rx_tail, update rx_tail and 173 * return the updated rx_tail to the caller 174 * after putting, rx_tail must be still larger than rx_end. 175 */ 176 if (precvframe == NULL) 177 return NULL; 178 precvframe->u.hdr.rx_tail += sz; 179 if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) { 180 precvframe->u.hdr.rx_tail -= sz; 181 return NULL; 182 } 183 precvframe->u.hdr.len += sz; 184 return precvframe->u.hdr.rx_tail; 185 } 186 187 static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) 188 { 189 /* rmv data from rx_tail (by yitsen) 190 * used for extract sz bytes from rx_end, update rx_end and return the 191 * updated rx_end to the caller 192 * after pulling, rx_end must be still larger than rx_data. 193 */ 194 if (precvframe == NULL) 195 return NULL; 196 precvframe->u.hdr.rx_tail -= sz; 197 if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) { 198 precvframe->u.hdr.rx_tail += sz; 199 return NULL; 200 } 201 precvframe->u.hdr.len -= sz; 202 return precvframe->u.hdr.rx_tail; 203 } 204 205 struct sta_info; 206 207 void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv); 208 sint r8712_recvframe_chkmic(struct _adapter *adapter, 209 union recv_frame *precvframe); 210 union recv_frame *r8712_decryptor(struct _adapter *adapter, 211 union recv_frame *precv_frame); 212 union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter, 213 union recv_frame *precv_frame); 214 int r8712_validate_recv_frame(struct _adapter *adapter, 215 union recv_frame *precv_frame); 216 union recv_frame *r8712_portctrl(struct _adapter *adapter, 217 union recv_frame *precv_frame); 218 219 #endif 220 221