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Implement an API to fetch the default DFS parameters for the given chip.

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The only chip this is currently implemented for is the AR5416 HAL family.
A follow-up commit will add AR5212 support.

PR:		kern/170904
This commit is contained in:
Adrian Chadd 2012-08-24 01:29:46 +00:00
parent e0c214d1bb
commit 54798be082
4 changed files with 50 additions and 0 deletions
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2
sys/dev/ath/ath_hal/ah.h
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@ -1223,6 +1223,8 @@ struct ath_hal {
HAL_PHYERR_PARAM *pe);
void __ahdecl(*ah_getDfsThresh)(struct ath_hal *ah,
HAL_PHYERR_PARAM *pe);
HAL_BOOL __ahdecl(*ah_getDfsDefaultThresh)(struct ath_hal *ah,
HAL_PHYERR_PARAM *pe);
HAL_BOOL __ahdecl(*ah_procRadarEvent)(struct ath_hal *ah,
struct ath_rx_status *rxs, uint64_t fulltsf,
const char *buf, HAL_DFS_EVENT *event);

2
sys/dev/ath/ath_hal/ar5416/ar5416.h
View File

@ -253,6 +253,8 @@ extern HAL_BOOL ar5416SetRifsDelay(struct ath_hal *ah,
const struct ieee80211_channel *chan, HAL_BOOL enable);
extern void ar5416EnableDfs(struct ath_hal *ah, HAL_PHYERR_PARAM *pe);
extern HAL_BOOL ar5416GetDfsDefaultThresh(struct ath_hal *ah,
HAL_PHYERR_PARAM *pe);
extern void ar5416GetDfsThresh(struct ath_hal *ah, HAL_PHYERR_PARAM *pe);
extern HAL_BOOL ar5416ProcessRadarEvent(struct ath_hal *ah,
struct ath_rx_status *rxs, uint64_t fulltsf, const char *buf,

1
sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
View File

@ -156,6 +156,7 @@ ar5416InitState(struct ath_hal_5416 *ahp5416, uint16_t devid, HAL_SOFTC sc,
/* DFS Functions */
ah->ah_enableDfs = ar5416EnableDfs;
ah->ah_getDfsThresh = ar5416GetDfsThresh;
ah->ah_getDfsDefaultThresh = ar5416GetDfsDefaultThresh;
ah->ah_procRadarEvent = ar5416ProcessRadarEvent;
ah->ah_isFastClockEnabled = ar5416IsFastClockEnabled;

45
sys/dev/ath/ath_hal/ar5416/ar5416_radar.c
View File

@ -28,6 +28,51 @@
#include "ah_eeprom_v14.h" /* for owl_get_ntxchains() */
/*
* These are default parameters for the AR5416 and
* later 802.11n NICs. They simply enable some
* radar pulse event generation.
*
* These are very likely not valid for the AR5212 era
* NICs.
*
* Since these define signal sizing and threshold
* parameters, they may need changing based on the
* specific antenna and receive amplifier
* configuration.
*/
#define AR5416_DFS_FIRPWR -33
#define AR5416_DFS_RRSSI 20
#define AR5416_DFS_HEIGHT 10
#define AR5416_DFS_PRSSI 15
#define AR5416_DFS_INBAND 15
#define AR5416_DFS_RELPWR 8
#define AR5416_DFS_RELSTEP 12
#define AR5416_DFS_MAXLEN 255
HAL_BOOL
ar5416GetDfsDefaultThresh(struct ath_hal *ah, HAL_PHYERR_PARAM *pe)
{
/*
* These are general examples of the parameter values
* to use when configuring radar pulse detection for
* the AR5416, AR91xx, AR92xx NICs. They are only
* for testing and do require tuning depending upon the
* hardware and deployment specifics.
*/
pe->pe_firpwr = AR5416_DFS_FIRPWR;
pe->pe_rrssi = AR5416_DFS_RRSSI;
pe->pe_height = AR5416_DFS_HEIGHT;
pe->pe_prssi = AR5416_DFS_PRSSI;
pe->pe_inband = AR5416_DFS_INBAND;
pe->pe_relpwr = AR5416_DFS_RELPWR;
pe->pe_relstep = AR5416_DFS_RELSTEP;
pe->pe_maxlen = AR5416_DFS_MAXLEN;
return (AH_TRUE);
}
/*
* Get the radar parameter values and return them in the pe
* structure