Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 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_RXFRAME_CNT 512 |
| 13 | #define MAX_RX_NUMBLKS (32) |
| 14 | #define RECVFRAME_HDR_ALIGN 128 |
| 15 | #define MAX_SUBFRAME_COUNT 64 |
| 16 | |
| 17 | #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) |
| 18 | |
| 19 | /* for Rx reordering buffer control */ |
| 20 | struct recv_reorder_ctrl { |
| 21 | struct _adapter *padapter; |
Javier M. Mellid | 0593758 | 2011-04-02 03:01:49 +0200 | [diff] [blame] | 22 | u16 indicate_seq; /* =wstart_b, init_value=0xffff */ |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 23 | u16 wend_b; |
Javier M. Mellid | 0593758 | 2011-04-02 03:01:49 +0200 | [diff] [blame] | 24 | u8 wsize_b; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 25 | struct __queue pending_recvframe_queue; |
| 26 | struct timer_list reordering_ctrl_timer; |
| 27 | }; |
| 28 | |
| 29 | struct stainfo_rxcache { |
| 30 | u16 tid_rxseq[16]; |
| 31 | }; |
| 32 | |
| 33 | #define PHY_RSSI_SLID_WIN_MAX 100 |
| 34 | #define PHY_LINKQUALITY_SLID_WIN_MAX 20 |
| 35 | |
| 36 | |
| 37 | struct smooth_rssi_data { |
| 38 | u32 elements[100]; /* array to store values */ |
| 39 | u32 index; /* index to current array to store */ |
| 40 | u32 total_num; /* num of valid elements */ |
| 41 | u32 total_val; /* sum of valid elements */ |
| 42 | }; |
| 43 | |
| 44 | struct rx_pkt_attrib { |
| 45 | |
| 46 | u8 amsdu; |
| 47 | u8 order; |
| 48 | u8 qos; |
| 49 | u8 to_fr_ds; |
| 50 | u8 frag_num; |
| 51 | u16 seq_num; |
| 52 | u8 pw_save; |
| 53 | u8 mfrag; |
| 54 | u8 mdata; |
| 55 | u8 privacy; /* in frame_ctrl field */ |
| 56 | u8 bdecrypted; |
| 57 | int hdrlen; /* the WLAN Header Len */ |
| 58 | int encrypt; /* 0 no encrypt. != 0 encrypt algorith */ |
| 59 | int iv_len; |
| 60 | int icv_len; |
| 61 | int priority; |
| 62 | int ack_policy; |
| 63 | u8 crc_err; |
| 64 | u8 dst[ETH_ALEN]; |
| 65 | u8 src[ETH_ALEN]; |
| 66 | u8 ta[ETH_ALEN]; |
| 67 | u8 ra[ETH_ALEN]; |
| 68 | u8 bssid[ETH_ALEN]; |
| 69 | u8 tcpchk_valid; /* 0: invalid, 1: valid */ |
| 70 | u8 ip_chkrpt; /* 0: incorrect, 1: correct */ |
| 71 | u8 tcp_chkrpt; /* 0: incorrect, 1: correct */ |
| 72 | u8 signal_qual; |
| 73 | s8 rx_mimo_signal_qual[2]; |
| 74 | u8 mcs_rate; |
| 75 | u8 htc; |
| 76 | u8 signal_strength; |
| 77 | }; |
| 78 | |
| 79 | /* |
| 80 | accesser of recv_priv: recv_entry(dispatch / passive level); |
| 81 | recv_thread(passive) ; returnpkt(dispatch) |
| 82 | ; halt(passive) ; |
| 83 | |
| 84 | using enter_critical section to protect |
| 85 | */ |
| 86 | struct recv_priv { |
| 87 | spinlock_t lock; |
| 88 | struct semaphore recv_sema; |
| 89 | struct semaphore terminate_recvthread_sema; |
| 90 | struct __queue free_recv_queue; |
| 91 | struct __queue recv_pending_queue; |
| 92 | u8 *pallocated_frame_buf; |
| 93 | u8 *precv_frame_buf; |
| 94 | uint free_recvframe_cnt; |
| 95 | struct _adapter *adapter; |
| 96 | uint rx_bytes; |
| 97 | uint rx_pkts; |
| 98 | uint rx_drop; |
| 99 | uint rx_icv_err; |
| 100 | uint rx_largepacket_crcerr; |
| 101 | uint rx_smallpacket_crcerr; |
| 102 | uint rx_middlepacket_crcerr; |
| 103 | struct semaphore allrxreturnevt; |
| 104 | u8 rx_pending_cnt; |
| 105 | uint ff_hwaddr; |
| 106 | struct tasklet_struct recv_tasklet; |
| 107 | struct sk_buff_head free_recv_skb_queue; |
| 108 | struct sk_buff_head rx_skb_queue; |
| 109 | u8 *pallocated_recv_buf; |
| 110 | u8 *precv_buf; /* 4 alignment */ |
| 111 | struct __queue free_recv_buf_queue; |
| 112 | u32 free_recv_buf_queue_cnt; |
| 113 | /* For the phy informatiom */ |
| 114 | s8 rssi; |
| 115 | u8 signal; |
| 116 | u8 noise; |
| 117 | u8 fw_rssi; |
| 118 | struct smooth_rssi_data signal_qual_data; |
| 119 | struct smooth_rssi_data signal_strength_data; |
| 120 | }; |
| 121 | |
| 122 | struct sta_recv_priv { |
| 123 | spinlock_t lock; |
| 124 | sint option; |
| 125 | struct __queue defrag_q; /* keeping the fragment frame until defrag */ |
| 126 | struct stainfo_rxcache rxcache; |
| 127 | uint sta_rx_bytes; |
| 128 | uint sta_rx_pkts; |
| 129 | uint sta_rx_fail; |
| 130 | }; |
| 131 | |
| 132 | #include "rtl8712_recv.h" |
| 133 | |
| 134 | /* get a free recv_frame from pfree_recv_queue */ |
| 135 | union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue); |
| 136 | union recv_frame *r8712_dequeue_recvframe(struct __queue *queue); |
| 137 | int r8712_enqueue_recvframe(union recv_frame *precvframe, |
| 138 | struct __queue *queue); |
| 139 | int r8712_free_recvframe(union recv_frame *precvframe, |
| 140 | struct __queue *pfree_recv_queue); |
| 141 | void r8712_free_recvframe_queue(struct __queue *pframequeue, |
| 142 | struct __queue *pfree_recv_queue); |
| 143 | void r8712_init_recvframe(union recv_frame *precvframe, |
| 144 | struct recv_priv *precvpriv); |
| 145 | int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe); |
| 146 | int recv_func(struct _adapter *padapter, void *pcontext); |
| 147 | |
| 148 | static inline u8 *get_rxmem(union recv_frame *precvframe) |
| 149 | { |
| 150 | /* always return rx_head... */ |
| 151 | if (precvframe == NULL) |
| 152 | return NULL; |
| 153 | return precvframe->u.hdr.rx_head; |
| 154 | } |
| 155 | |
| 156 | static inline u8 *get_rx_status(union recv_frame *precvframe) |
| 157 | { |
| 158 | return get_rxmem(precvframe); |
| 159 | } |
| 160 | |
| 161 | static inline u8 *get_recvframe_data(union recv_frame *precvframe) |
| 162 | { |
| 163 | /* always return rx_data */ |
| 164 | if (precvframe == NULL) |
| 165 | return NULL; |
| 166 | return precvframe->u.hdr.rx_data; |
| 167 | } |
| 168 | |
| 169 | static inline u8 *recvframe_push(union recv_frame *precvframe, sint sz) |
| 170 | { |
| 171 | /* append data before rx_data */ |
| 172 | |
| 173 | /* add data to the start of recv_frame |
| 174 | * |
| 175 | * This function extends the used data area of the recv_frame at the |
| 176 | * buffer start. rx_data must be still larger than rx_head, after |
| 177 | * pushing. |
| 178 | */ |
| 179 | |
| 180 | if (precvframe == NULL) |
| 181 | return NULL; |
| 182 | precvframe->u.hdr.rx_data -= sz ; |
| 183 | if (precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head) { |
| 184 | precvframe->u.hdr.rx_data += sz ; |
| 185 | return NULL; |
| 186 | } |
| 187 | precvframe->u.hdr.len += sz; |
| 188 | return precvframe->u.hdr.rx_data; |
| 189 | } |
| 190 | |
| 191 | static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz) |
| 192 | { |
| 193 | /* used for extract sz bytes from rx_data, update rx_data and return |
| 194 | * the updated rx_data to the caller */ |
| 195 | if (precvframe == NULL) |
| 196 | return NULL; |
| 197 | precvframe->u.hdr.rx_data += sz; |
| 198 | if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) { |
| 199 | precvframe->u.hdr.rx_data -= sz; |
| 200 | return NULL; |
| 201 | } |
| 202 | precvframe->u.hdr.len -= sz; |
| 203 | return precvframe->u.hdr.rx_data; |
| 204 | } |
| 205 | |
| 206 | static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz) |
| 207 | { |
| 208 | /* used for append sz bytes from ptr to rx_tail, update rx_tail and |
| 209 | * return the updated rx_tail to the caller |
| 210 | * after putting, rx_tail must be still larger than rx_end. */ |
| 211 | unsigned char *prev_rx_tail; |
| 212 | |
| 213 | if (precvframe == NULL) |
| 214 | return NULL; |
| 215 | prev_rx_tail = precvframe->u.hdr.rx_tail; |
| 216 | precvframe->u.hdr.rx_tail += sz; |
| 217 | if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) { |
| 218 | precvframe->u.hdr.rx_tail -= sz; |
| 219 | return NULL; |
| 220 | } |
| 221 | precvframe->u.hdr.len += sz; |
| 222 | return precvframe->u.hdr.rx_tail; |
| 223 | } |
| 224 | |
| 225 | static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) |
| 226 | { |
| 227 | /* rmv data from rx_tail (by yitsen) |
| 228 | * used for extract sz bytes from rx_end, update rx_end and return the |
| 229 | * updated rx_end to the caller |
| 230 | * after pulling, rx_end must be still larger than rx_data. */ |
| 231 | if (precvframe == NULL) |
| 232 | return NULL; |
| 233 | precvframe->u.hdr.rx_tail -= sz; |
| 234 | if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) { |
| 235 | precvframe->u.hdr.rx_tail += sz; |
| 236 | return NULL; |
| 237 | } |
| 238 | precvframe->u.hdr.len -= sz; |
| 239 | return precvframe->u.hdr.rx_tail; |
| 240 | } |
| 241 | |
| 242 | static inline _buffer *get_rxbuf_desc(union recv_frame *precvframe) |
| 243 | { |
| 244 | _buffer *buf_desc; |
| 245 | if (precvframe == NULL) |
| 246 | return NULL; |
| 247 | return buf_desc; |
| 248 | } |
| 249 | |
| 250 | static inline union recv_frame *rxmem_to_recvframe(u8 *rxmem) |
| 251 | { |
| 252 | /* due to the design of 2048 bytes alignment of recv_frame, we can |
| 253 | * reference the union recv_frame from any given member of recv_frame. |
| 254 | * rxmem indicates the any member/address in recv_frame */ |
| 255 | return (union recv_frame *)(((addr_t)rxmem >> RXFRAME_ALIGN) << |
| 256 | RXFRAME_ALIGN); |
| 257 | } |
| 258 | |
| 259 | static inline union recv_frame *pkt_to_recvframe(_pkt *pkt) |
| 260 | { |
| 261 | u8 *buf_star; |
| 262 | union recv_frame *precv_frame; |
| 263 | |
| 264 | precv_frame = rxmem_to_recvframe((unsigned char *)buf_star); |
| 265 | return precv_frame; |
| 266 | } |
| 267 | |
| 268 | static inline u8 *pkt_to_recvmem(_pkt *pkt) |
| 269 | { |
| 270 | /* return the rx_head */ |
| 271 | union recv_frame *precv_frame = pkt_to_recvframe(pkt); |
| 272 | |
| 273 | return precv_frame->u.hdr.rx_head; |
| 274 | } |
| 275 | |
| 276 | static inline u8 *pkt_to_recvdata(_pkt *pkt) |
| 277 | { |
| 278 | /* return the rx_data */ |
| 279 | union recv_frame *precv_frame = pkt_to_recvframe(pkt); |
| 280 | |
| 281 | return precv_frame->u.hdr.rx_data; |
| 282 | } |
| 283 | |
| 284 | static inline sint get_recvframe_len(union recv_frame *precvframe) |
| 285 | { |
| 286 | return precvframe->u.hdr.len; |
| 287 | } |
| 288 | |
| 289 | struct sta_info; |
| 290 | |
| 291 | void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv); |
| 292 | sint r8712_recvframe_chkmic(struct _adapter *adapter, |
| 293 | union recv_frame *precvframe); |
| 294 | union recv_frame *r8712_decryptor(struct _adapter *adapter, |
| 295 | union recv_frame *precv_frame); |
| 296 | union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter, |
| 297 | union recv_frame *precv_frame); |
| 298 | union recv_frame *r8712_recvframe_defrag(struct _adapter *adapter, |
| 299 | struct __queue *defrag_q); |
| 300 | union recv_frame *r8712_recvframe_chk_defrag_new(struct _adapter *adapter, |
| 301 | union recv_frame *precv_frame); |
| 302 | union recv_frame *r8712_recvframe_defrag_new(struct _adapter *adapter, |
| 303 | struct __queue *defrag_q, |
| 304 | union recv_frame *precv_frame); |
| 305 | int r8712_recv_decache(union recv_frame *precv_frame, u8 bretry, |
| 306 | struct stainfo_rxcache *prxcache); |
| 307 | int r8712_sta2sta_data_frame(struct _adapter *adapter, |
| 308 | union recv_frame *precv_frame, |
| 309 | struct sta_info **psta); |
| 310 | int r8712_ap2sta_data_frame(struct _adapter *adapter, |
| 311 | union recv_frame *precv_frame, |
| 312 | struct sta_info **psta); |
| 313 | int r8712_sta2ap_data_frame(struct _adapter *adapter, |
| 314 | union recv_frame *precv_frame, |
| 315 | struct sta_info **psta); |
| 316 | int r8712_validate_recv_ctrl_frame(struct _adapter *adapter, |
| 317 | union recv_frame *precv_frame); |
| 318 | int r8712_validate_recv_mgnt_frame(struct _adapter *adapter, |
| 319 | union recv_frame *precv_frame); |
| 320 | int r8712_validate_recv_data_frame(struct _adapter *adapter, |
| 321 | union recv_frame *precv_frame); |
| 322 | int r8712_validate_recv_frame(struct _adapter *adapter, |
| 323 | union recv_frame *precv_frame); |
| 324 | union recv_frame *r8712_portctrl(struct _adapter *adapter, |
| 325 | union recv_frame *precv_frame); |
| 326 | void r8712_mgt_dispatcher(struct _adapter *padapter, u8 *pframe, uint len); |
| 327 | int r8712_amsdu_to_msdu(struct _adapter *padapter, union recv_frame *prframe); |
| 328 | |
| 329 | #endif |
| 330 | |