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