d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
edafc5663e
freebsd-nq/sys/dev/ath/if_athvar.h
Sam Leffler de5af70460 Maintain a history of data associated with received frames and use this to 
calculate smoothed signal quality data for each node.

o add a 16-deep history buffer to each driver-private node storage that
  holds rssi and antenna info for received frames
o override the default per-node "get rssi" method to return an average
  rssi value based on samples collected over the last second
o enable beacon reception so even idle systems maintain a running history
  of signal quality

This data may also be useful for improving the rate control algorithm.
Based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:34:46 +00:00

295 lines
12 KiB
C
Raw Blame History

/*-
* Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
/*
* Defintions for the Atheros Wireless LAN controller driver.
*/
#ifndef _DEV_ATH_ATHVAR_H
#define _DEV_ATH_ATHVAR_H
#include <sys/taskqueue.h>
#include <contrib/dev/ath/ah.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/ath/if_athioctl.h>
#define ATH_TIMEOUT 1000
#define ATH_RXBUF 40 /* number of RX buffers */
#define ATH_TXBUF 60 /* number of TX buffers */
#define ATH_TXDESC 8 /* number of descriptors per buffer */
struct ath_recv_hist {
int arh_ticks; /* sample time by system clock */
u_int8_t arh_rssi; /* rssi */
u_int8_t arh_antenna; /* antenna */
};
#define ATH_RHIST_SIZE 16 /* number of samples */
#define ATH_RHIST_NOTIME (~0)
/* driver-specific node */
struct ath_node {
struct ieee80211_node an_node; /* base class */
u_int an_tx_ok; /* tx ok pkt */
u_int an_tx_err; /* tx !ok pkt */
u_int an_tx_retr; /* tx retry count */
int an_tx_upper; /* tx upper rate req cnt */
u_int an_tx_antenna; /* antenna for last good frame */
u_int an_rx_antenna; /* antenna for last rcvd frame */
struct ath_recv_hist an_rx_hist[ATH_RHIST_SIZE];
u_int an_rx_hist_next;/* index of next ``free entry'' */
};
#define ATH_NODE(_n) ((struct ath_node *)(_n))
struct ath_buf {
TAILQ_ENTRY(ath_buf) bf_list;
int bf_nseg;
bus_dmamap_t bf_dmamap; /* DMA map of the buffer */
struct ath_desc *bf_desc; /* virtual addr of desc */
bus_addr_t bf_daddr; /* physical addr of desc */
struct mbuf *bf_m; /* mbuf for buf */
struct ieee80211_node *bf_node; /* pointer to the node */
bus_size_t bf_mapsize;
#define ATH_MAX_SCATTER 64
bus_dma_segment_t bf_segs[ATH_MAX_SCATTER];
};
struct ath_softc {
struct ieee80211com sc_ic; /* IEEE 802.11 common */
int (*sc_newstate)(struct ieee80211com *,
enum ieee80211_state, int);
device_t sc_dev;
bus_space_tag_t sc_st; /* bus space tag */
bus_space_handle_t sc_sh; /* bus space handle */
bus_dma_tag_t sc_dmat; /* bus DMA tag */
struct mtx sc_mtx; /* master lock (recursive) */
struct ath_hal *sc_ah; /* Atheros HAL */
unsigned int sc_invalid : 1,/* disable hardware accesses */
sc_doani : 1,/* dynamic noise immunity */
sc_probing : 1;/* probing AP on beacon miss */
/* rate tables */
const HAL_RATE_TABLE *sc_rates[IEEE80211_MODE_MAX];
const HAL_RATE_TABLE *sc_currates; /* current rate table */
enum ieee80211_phymode sc_curmode; /* current phy mode */
u_int8_t sc_rixmap[256]; /* IEEE to h/w rate table ix */
u_int8_t sc_hwmap[32]; /* h/w rate ix to IEEE table */
HAL_INT sc_imask; /* interrupt mask copy */
struct bpf_if *sc_drvbpf;
union {
struct ath_tx_radiotap_header th;
u_int8_t pad[64];
} u_tx_rt;
union {
struct ath_rx_radiotap_header th;
u_int8_t pad[64];
} u_rx_rt;
struct ath_desc *sc_desc; /* TX/RX descriptors */
bus_dma_segment_t sc_dseg;
bus_dmamap_t sc_ddmamap; /* DMA map for descriptors */
bus_addr_t sc_desc_paddr; /* physical addr of sc_desc */
bus_addr_t sc_desc_len; /* size of sc_desc */
struct task sc_fataltask; /* fatal int processing */
struct task sc_rxorntask; /* rxorn int processing */
TAILQ_HEAD(, ath_buf) sc_rxbuf; /* receive buffer */
u_int32_t *sc_rxlink; /* link ptr in last RX desc */
struct task sc_rxtask; /* rx int processing */
u_int sc_txhalq; /* HAL q for outgoing frames */
u_int32_t *sc_txlink; /* link ptr in last TX desc */
int sc_tx_timer; /* transmit timeout */
TAILQ_HEAD(, ath_buf) sc_txbuf; /* transmit buffer */
struct mtx sc_txbuflock; /* txbuf lock */
TAILQ_HEAD(, ath_buf) sc_txq; /* transmitting queue */
struct mtx sc_txqlock; /* lock on txq and txlink */
struct task sc_txtask; /* tx int processing */
u_int sc_bhalq; /* HAL q for outgoing beacons */
struct ath_buf *sc_bcbuf; /* beacon buffer */
struct ath_buf *sc_bufptr; /* allocated buffer ptr */
struct task sc_swbatask; /* swba int processing */
struct task sc_bmisstask; /* bmiss int processing */
struct callout sc_cal_ch; /* callout handle for cals */
struct callout sc_scan_ch; /* callout handle for scan */
struct ath_stats sc_stats; /* interface statistics */
};
#define sc_tx_th u_tx_rt.th
#define sc_rx_th u_rx_rt.th
int ath_attach(u_int16_t, struct ath_softc *);
int ath_detach(struct ath_softc *);
void ath_resume(struct ath_softc *);
void ath_suspend(struct ath_softc *);
void ath_shutdown(struct ath_softc *);
void ath_intr(void *);
/*
* HAL definitions to comply with local coding convention.
*/
#define ath_hal_reset(_ah, _opmode, _chan, _outdoor, _pstatus) \
((*(_ah)->ah_reset)((_ah), (_opmode), (_chan), (_outdoor), (_pstatus)))
#define ath_hal_getratetable(_ah, _mode) \
((*(_ah)->ah_getRateTable)((_ah), (_mode)))
#define ath_hal_getregdomain(_ah) \
((*(_ah)->ah_getRegDomain)((_ah)))
#define ath_hal_getcountrycode(_ah) (_ah)->ah_countryCode
#define ath_hal_getmac(_ah, _mac) \
((*(_ah)->ah_getMacAddress)((_ah), (_mac)))
#define ath_hal_detach(_ah) \
((*(_ah)->ah_detach)((_ah)))
#define ath_hal_intrset(_ah, _mask) \
((*(_ah)->ah_setInterrupts)((_ah), (_mask)))
#define ath_hal_intrget(_ah) \
((*(_ah)->ah_getInterrupts)((_ah)))
#define ath_hal_intrpend(_ah) \
((*(_ah)->ah_isInterruptPending)((_ah)))
#define ath_hal_getisr(_ah, _pmask) \
((*(_ah)->ah_getPendingInterrupts)((_ah), (_pmask)))
#define ath_hal_updatetxtriglevel(_ah, _inc) \
((*(_ah)->ah_updateTxTrigLevel)((_ah), (_inc)))
#define ath_hal_setpower(_ah, _mode, _sleepduration) \
((*(_ah)->ah_setPowerMode)((_ah), (_mode), AH_TRUE, (_sleepduration)))
#define ath_hal_keyreset(_ah, _ix) \
((*(_ah)->ah_resetKeyCacheEntry)((_ah), (_ix)))
#define ath_hal_keyset(_ah, _ix, _pk) \
((*(_ah)->ah_setKeyCacheEntry)((_ah), (_ix), (_pk), NULL, AH_FALSE))
#define ath_hal_keyisvalid(_ah, _ix) \
(((*(_ah)->ah_isKeyCacheEntryValid)((_ah), (_ix))))
#define ath_hal_keysetmac(_ah, _ix, _mac) \
((*(_ah)->ah_setKeyCacheEntryMac)((_ah), (_ix), (_mac)))
#define ath_hal_getrxfilter(_ah) \
((*(_ah)->ah_getRxFilter)((_ah)))
#define ath_hal_setrxfilter(_ah, _filter) \
((*(_ah)->ah_setRxFilter)((_ah), (_filter)))
#define ath_hal_setmcastfilter(_ah, _mfilt0, _mfilt1) \
((*(_ah)->ah_setMulticastFilter)((_ah), (_mfilt0), (_mfilt1)))
#define ath_hal_waitforbeacon(_ah, _bf) \
((*(_ah)->ah_waitForBeaconDone)((_ah), (_bf)->bf_daddr))
#define ath_hal_putrxbuf(_ah, _bufaddr) \
((*(_ah)->ah_setRxDP)((_ah), (_bufaddr)))
#define ath_hal_gettsf32(_ah) \
((*(_ah)->ah_getTsf32)((_ah)))
#define ath_hal_gettsf64(_ah) \
((*(_ah)->ah_getTsf64)((_ah)))
#define ath_hal_resettsf(_ah) \
((*(_ah)->ah_resetTsf)((_ah)))
#define ath_hal_rxena(_ah) \
((*(_ah)->ah_enableReceive)((_ah)))
#define ath_hal_puttxbuf(_ah, _q, _bufaddr) \
((*(_ah)->ah_setTxDP)((_ah), (_q), (_bufaddr)))
#define ath_hal_gettxbuf(_ah, _q) \
((*(_ah)->ah_getTxDP)((_ah), (_q)))
#define ath_hal_getrxbuf(_ah) \
((*(_ah)->ah_getRxDP)((_ah)))
#define ath_hal_txstart(_ah, _q) \
((*(_ah)->ah_startTxDma)((_ah), (_q)))
#define ath_hal_setchannel(_ah, _chan) \
((*(_ah)->ah_setChannel)((_ah), (_chan)))
#define ath_hal_calibrate(_ah, _chan) \
((*(_ah)->ah_perCalibration)((_ah), (_chan)))
#define ath_hal_setledstate(_ah, _state) \
((*(_ah)->ah_setLedState)((_ah), (_state)))
#define ath_hal_beaconinit(_ah, _opmode, _nextb, _bperiod) \
((*(_ah)->ah_beaconInit)((_ah), (_opmode), (_nextb), (_bperiod)))
#define ath_hal_beaconreset(_ah) \
((*(_ah)->ah_resetStationBeaconTimers)((_ah)))
#define ath_hal_beacontimers(_ah, _bs, _tsf, _dc, _cc) \
((*(_ah)->ah_setStationBeaconTimers)((_ah), (_bs), (_tsf), \
(_dc), (_cc)))
#define ath_hal_setassocid(_ah, _bss, _associd) \
((*(_ah)->ah_writeAssocid)((_ah), (_bss), (_associd), 0))
#define ath_hal_setopmode(_ah, _opmode) \
((*(_ah)->ah_setPCUConfig)((_ah), (_opmode)))
#define ath_hal_stoptxdma(_ah, _qnum) \
((*(_ah)->ah_stopTxDma)((_ah), (_qnum)))
#define ath_hal_stoppcurecv(_ah) \
((*(_ah)->ah_stopPcuReceive)((_ah)))
#define ath_hal_startpcurecv(_ah) \
((*(_ah)->ah_startPcuReceive)((_ah)))
#define ath_hal_stopdmarecv(_ah) \
((*(_ah)->ah_stopDmaReceive)((_ah)))
#define ath_hal_dumpstate(_ah) \
((*(_ah)->ah_dumpState)((_ah)))
#define ath_hal_dumpeeprom(_ah) \
((*(_ah)->ah_dumpEeprom)((_ah)))
#define ath_hal_dumprfgain(_ah) \
((*(_ah)->ah_dumpRfGain)((_ah)))
#define ath_hal_dumpani(_ah) \
((*(_ah)->ah_dumpAni)((_ah)))
#define ath_hal_setuptxqueue(_ah, _type, _irq) \
((*(_ah)->ah_setupTxQueue)((_ah), (_type), (_irq)))
#define ath_hal_resettxqueue(_ah, _q) \
((*(_ah)->ah_resetTxQueue)((_ah), (_q)))
#define ath_hal_releasetxqueue(_ah, _q) \
((*(_ah)->ah_releaseTxQueue)((_ah), (_q)))
#define ath_hal_hasveol(_ah) \
((*(_ah)->ah_hasVEOL)((_ah)))
#define ath_hal_getrfgain(_ah) \
((*(_ah)->ah_getRfGain)((_ah)))
#define ath_hal_rxmonitor(_ah) \
((*(_ah)->ah_rxMonitor)((_ah)))
#define ath_hal_setupbeacondesc(_ah, _ds, _opmode, _flen, _hlen, \
_rate, _antmode) \
((*(_ah)->ah_setupBeaconDesc)((_ah), (_ds), (_opmode), \
(_flen), (_hlen), (_rate), (_antmode)))
#define ath_hal_setuprxdesc(_ah, _ds, _size, _intreq) \
((*(_ah)->ah_setupRxDesc)((_ah), (_ds), (_size), (_intreq)))
#define ath_hal_rxprocdesc(_ah, _ds) \
((*(_ah)->ah_procRxDesc)((_ah), (_ds)))
#define ath_hal_setuptxdesc(_ah, _ds, _plen, _hlen, _atype, _txpow, \
_txr0, _txtr0, _keyix, _ant, _flags, \
_rtsrate, _rtsdura) \
((*(_ah)->ah_setupTxDesc)((_ah), (_ds), (_plen), (_hlen), (_atype), \
(_txpow), (_txr0), (_txtr0), (_keyix), (_ant), \
(_flags), (_rtsrate), (_rtsdura)))
#define ath_hal_setupxtxdesc(_ah, _ds, _short, \
_txr1, _txtr1, _txr2, _txtr2, _txr3, _txtr3) \
((*(_ah)->ah_setupXTxDesc)((_ah), (_ds), (_short), \
(_txr1), (_txtr1), (_txr2), (_txtr2), (_txr3), (_txtr3)))
#define ath_hal_filltxdesc(_ah, _ds, _l, _first, _last) \
((*(_ah)->ah_fillTxDesc)((_ah), (_ds), (_l), (_first), (_last)))
#define ath_hal_txprocdesc(_ah, _ds) \
((*(_ah)->ah_procTxDesc)((_ah), (_ds)))
#endif /* _DEV_ATH_ATHVAR_H */
Reference in New Issue View Git Blame Copy Permalink