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