diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/scb.h')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmsmac/scb.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/scb.h b/drivers/net/wireless/brcm80211/brcmsmac/scb.h new file mode 100644 index 000000000000..51c79c7239b7 --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmsmac/scb.h @@ -0,0 +1,82 @@ +/* + * 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_ */ |