diff options
Diffstat (limited to 'drivers/staging/brcm80211/sys/wlc_scb.h')
| -rw-r--r-- | drivers/staging/brcm80211/sys/wlc_scb.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/staging/brcm80211/sys/wlc_scb.h b/drivers/staging/brcm80211/sys/wlc_scb.h new file mode 100644 index 0000000..ce26c74 --- /dev/null +++ b/drivers/staging/brcm80211/sys/wlc_scb.h @@ -0,0 +1,84 @@ +/* + * 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 _wlc_scb_h_ +#define _wlc_scb_h_ + +#include <proto/802.1d.h> + +extern bool wlc_aggregatable(wlc_info_t *wlc, u8 tid); + +#define AMPDU_TX_BA_MAX_WSIZE 64 /* max Tx ba window size (in pdu) */ +/* structure to store per-tid state for the ampdu initiator */ +typedef struct scb_ampdu_tid_ini { + u32 magic; + u8 tx_in_transit; /* number of pending mpdus in transit in driver */ + u8 tid; /* initiator tid for easy lookup */ + u8 txretry[AMPDU_TX_BA_MAX_WSIZE]; /* tx retry count; indexed by seq modulo */ + struct scb *scb; /* backptr for easy lookup */ +} scb_ampdu_tid_ini_t; + +#define AMPDU_MAX_SCB_TID NUMPRIO + +typedef 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_rxlen; /* max ampdu rcv length; 8k, 16k, 32k, 64k */ + struct pktq txq; /* sdu transmit queue pending aggregation */ + + /* 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. + */ + scb_ampdu_tid_ini_t ini[AMPDU_MAX_SCB_TID]; /* initiator info - per tid (NUMPRIO) */ +} scb_ampdu_t; + +#define SCB_MAGIC 0xbeefcafe +#define INI_MAGIC 0xabcd1234 + +/* 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 */ + struct ether_addr ea; /* station address */ + void *fragbuf[NUMPRIO]; /* defragmentation buffer per prio */ + uint fragresid[NUMPRIO]; /* #bytes unused in frag buffer per prio */ + + u16 seqctl[NUMPRIO]; /* seqctl of last received frame (for dups) */ + u16 seqctl_nonqos; /* seqctl of last received frame (for dups) for + * non-QoS data and management + */ + u16 seqnum[NUMPRIO]; /* WME: driver maintained sw seqnum per priority */ + + scb_ampdu_t scb_ampdu; /* AMPDU state including per tid info */ +}; + +/* scb flags */ +#define SCB_WMECAP 0x0040 /* may ONLY be set if WME_ENAB(wlc) */ +#define SCB_HTCAP 0x10000 /* HT (MIMO) capable device */ +#define SCB_IS40 0x80000 /* 40MHz capable */ +#define SCB_STBCCAP 0x40000000 /* STBC Capable */ +#define SCB_WME(a) ((a)->flags & SCB_WMECAP)/* implies WME_ENAB */ +#define SCB_SEQNUM(scb, prio) ((scb)->seqnum[(prio)]) +#define SCB_PS(a) NULL +#define SCB_STBC_CAP(a) ((a)->flags & SCB_STBCCAP) +#define SCB_AMPDU(a) true +#endif /* _wlc_scb_h_ */ |
