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