1 /*
2  * Copyright (c) 2013 Broadcom Corporation
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 #ifndef BRCMFMAC_PROTO_H
17 #define BRCMFMAC_PROTO_H
18 
19 
20 enum proto_addr_mode {
21 	ADDR_INDIRECT	= 0,
22 	ADDR_DIRECT
23 };
24 
25 struct brcmf_skb_reorder_data {
26 	u8 *reorder;
27 };
28 
29 struct brcmf_proto {
30 	int (*hdrpull)(struct brcmf_pub *drvr, bool do_fws,
31 		       struct sk_buff *skb, struct brcmf_if **ifp);
32 	int (*query_dcmd)(struct brcmf_pub *drvr, int ifidx, uint cmd,
33 			  void *buf, uint len);
34 	int (*set_dcmd)(struct brcmf_pub *drvr, int ifidx, uint cmd, void *buf,
35 			uint len);
36 	int (*tx_queue_data)(struct brcmf_pub *drvr, int ifidx,
37 			     struct sk_buff *skb);
38 	int (*txdata)(struct brcmf_pub *drvr, int ifidx, u8 offset,
39 		      struct sk_buff *skb);
40 	void (*configure_addr_mode)(struct brcmf_pub *drvr, int ifidx,
41 				    enum proto_addr_mode addr_mode);
42 	void (*delete_peer)(struct brcmf_pub *drvr, int ifidx,
43 			    u8 peer[ETH_ALEN]);
44 	void (*add_tdls_peer)(struct brcmf_pub *drvr, int ifidx,
45 			      u8 peer[ETH_ALEN]);
46 	void (*rxreorder)(struct brcmf_if *ifp, struct sk_buff *skb);
47 	void (*add_if)(struct brcmf_if *ifp);
48 	void (*del_if)(struct brcmf_if *ifp);
49 	void (*reset_if)(struct brcmf_if *ifp);
50 	int (*init_done)(struct brcmf_pub *drvr);
51 	void *pd;
52 };
53 
54 
55 int brcmf_proto_attach(struct brcmf_pub *drvr);
56 void brcmf_proto_detach(struct brcmf_pub *drvr);
57 
58 static inline int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws,
59 				      struct sk_buff *skb,
60 				      struct brcmf_if **ifp)
61 {
62 	struct brcmf_if *tmp = NULL;
63 
64 	/* assure protocol is always called with
65 	 * non-null initialized pointer.
66 	 */
67 	if (ifp)
68 		*ifp = NULL;
69 	else
70 		ifp = &tmp;
71 	return drvr->proto->hdrpull(drvr, do_fws, skb, ifp);
72 }
73 static inline int brcmf_proto_query_dcmd(struct brcmf_pub *drvr, int ifidx,
74 					 uint cmd, void *buf, uint len)
75 {
76 	return drvr->proto->query_dcmd(drvr, ifidx, cmd, buf, len);
77 }
78 static inline int brcmf_proto_set_dcmd(struct brcmf_pub *drvr, int ifidx,
79 				       uint cmd, void *buf, uint len)
80 {
81 	return drvr->proto->set_dcmd(drvr, ifidx, cmd, buf, len);
82 }
83 
84 static inline int brcmf_proto_tx_queue_data(struct brcmf_pub *drvr, int ifidx,
85 					    struct sk_buff *skb)
86 {
87 	return drvr->proto->tx_queue_data(drvr, ifidx, skb);
88 }
89 
90 static inline int brcmf_proto_txdata(struct brcmf_pub *drvr, int ifidx,
91 				     u8 offset, struct sk_buff *skb)
92 {
93 	return drvr->proto->txdata(drvr, ifidx, offset, skb);
94 }
95 static inline void
96 brcmf_proto_configure_addr_mode(struct brcmf_pub *drvr, int ifidx,
97 				enum proto_addr_mode addr_mode)
98 {
99 	drvr->proto->configure_addr_mode(drvr, ifidx, addr_mode);
100 }
101 static inline void
102 brcmf_proto_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
103 {
104 	drvr->proto->delete_peer(drvr, ifidx, peer);
105 }
106 static inline void
107 brcmf_proto_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
108 {
109 	drvr->proto->add_tdls_peer(drvr, ifidx, peer);
110 }
111 static inline bool brcmf_proto_is_reorder_skb(struct sk_buff *skb)
112 {
113 	struct brcmf_skb_reorder_data *rd;
114 
115 	rd = (struct brcmf_skb_reorder_data *)skb->cb;
116 	return !!rd->reorder;
117 }
118 
119 static inline void
120 brcmf_proto_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb)
121 {
122 	ifp->drvr->proto->rxreorder(ifp, skb);
123 }
124 
125 static inline void
126 brcmf_proto_add_if(struct brcmf_pub *drvr, struct brcmf_if *ifp)
127 {
128 	if (!drvr->proto->add_if)
129 		return;
130 	drvr->proto->add_if(ifp);
131 }
132 
133 static inline void
134 brcmf_proto_del_if(struct brcmf_pub *drvr, struct brcmf_if *ifp)
135 {
136 	if (!drvr->proto->del_if)
137 		return;
138 	drvr->proto->del_if(ifp);
139 }
140 
141 static inline void
142 brcmf_proto_reset_if(struct brcmf_pub *drvr, struct brcmf_if *ifp)
143 {
144 	if (!drvr->proto->reset_if)
145 		return;
146 	drvr->proto->reset_if(ifp);
147 }
148 
149 static inline int
150 brcmf_proto_init_done(struct brcmf_pub *drvr)
151 {
152 	if (!drvr->proto->init_done)
153 		return 0;
154 	return drvr->proto->init_done(drvr);
155 }
156 
157 #endif /* BRCMFMAC_PROTO_H */
158