1 /*
2  * Copyright (c) 2010 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 
17 #ifndef _BRCM_AMPDU_H_
18 #define _BRCM_AMPDU_H_
19 
20 /*
21  * Data structure representing an in-progress session for accumulating
22  * frames for AMPDU.
23  *
24  * wlc: pointer to common driver data
25  * skb_list: queue of skb's for AMPDU
26  * max_ampdu_len: maximum length for this AMPDU
27  * max_ampdu_frames: maximum number of frames for this AMPDU
28  * ampdu_len: total number of bytes accumulated for this AMPDU
29  * dma_len: DMA length of this AMPDU
30  */
31 struct brcms_ampdu_session {
32 	struct brcms_c_info *wlc;
33 	struct sk_buff_head skb_list;
34 	unsigned max_ampdu_len;
35 	u16 max_ampdu_frames;
36 	u16 ampdu_len;
37 	u16 dma_len;
38 };
39 
40 void brcms_c_ampdu_reset_session(struct brcms_ampdu_session *session,
41 				 struct brcms_c_info *wlc);
42 int brcms_c_ampdu_add_frame(struct brcms_ampdu_session *session,
43 			    struct sk_buff *p);
44 void brcms_c_ampdu_finalize(struct brcms_ampdu_session *session);
45 
46 struct ampdu_info *brcms_c_ampdu_attach(struct brcms_c_info *wlc);
47 void brcms_c_ampdu_detach(struct ampdu_info *ampdu);
48 void brcms_c_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb,
49 			      struct sk_buff *p, struct tx_status *txs);
50 void brcms_c_ampdu_macaddr_upd(struct brcms_c_info *wlc);
51 void brcms_c_ampdu_shm_upd(struct ampdu_info *ampdu);
52 
53 #endif				/* _BRCM_AMPDU_H_ */
54