/*
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* Copyright (c) 2010 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _BRCM_SCB_H_
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#define _BRCM_SCB_H_
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#include <linux/if_ether.h>
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#include <brcmu_utils.h>
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#include <defs.h>
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#include "types.h"
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#define AMPDU_TX_BA_MAX_WSIZE 64 /* max Tx ba window size (in pdu) */
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#define AMPDU_MAX_SCB_TID NUMPRIO
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/* scb flags */
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#define SCB_WMECAP 0x0040
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#define SCB_HTCAP 0x10000 /* HT (MIMO) capable device */
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#define SCB_IS40 0x80000 /* 40MHz capable */
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#define SCB_STBCCAP 0x40000000 /* STBC Capable */
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#define SCB_MAGIC 0xbeefcafe
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/* structure to store per-tid state for the ampdu initiator */
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struct scb_ampdu_tid_ini {
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u8 tid; /* initiator tid for easy lookup */
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/* tx retry count; indexed by seq modulo */
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u8 txretry[AMPDU_TX_BA_MAX_WSIZE];
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struct scb *scb; /* backptr for easy lookup */
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u8 ba_wsize; /* negotiated ba window size (in pdu) */
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};
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struct scb_ampdu {
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struct scb *scb; /* back pointer for easy reference */
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u8 mpdu_density; /* mpdu density */
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u8 max_pdu; /* max pdus allowed in ampdu */
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u8 release; /* # of mpdus released at a time */
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u16 min_len; /* min mpdu len to support the density */
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u32 max_rx_ampdu_bytes; /* max ampdu rcv length; 8k, 16k, 32k, 64k */
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/*
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* This could easily be a ini[] pointer and we keep this info in wl
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* itself instead of having mac80211 hold it for us. Also could be made
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* dynamic per tid instead of static.
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*/
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/* initiator info - per tid (NUMPRIO): */
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struct scb_ampdu_tid_ini ini[AMPDU_MAX_SCB_TID];
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};
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/* station control block - one per remote MAC address */
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struct scb {
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u32 magic;
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u32 flags; /* various bit flags as defined below */
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u32 flags2; /* various bit flags2 as defined below */
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u8 state; /* current state bitfield of auth/assoc process */
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u8 ea[ETH_ALEN]; /* station address */
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uint fragresid[NUMPRIO];/* #bytes unused in frag buffer per prio */
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u16 seqctl[NUMPRIO]; /* seqctl of last received frame (for dups) */
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/* seqctl of last received frame (for dups) for non-QoS data and
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* management */
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u16 seqctl_nonqos;
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u16 seqnum[NUMPRIO];/* WME: driver maintained sw seqnum per priority */
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struct scb_ampdu scb_ampdu; /* AMPDU state including per tid info */
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};
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#endif /* _BRCM_SCB_H_ */
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