diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/ath/ath_hal/ar5416/ar5416_reset.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c b/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c index 2e4e618..2ffc676 100644 --- a/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c +++ b/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c @@ -358,8 +358,30 @@ ar5416Reset(struct ath_hal *ah, HAL_OPMODE opmode, OS_REG_WRITE(ah, AR_OBS, 8); #ifdef AH_AR5416_INTERRUPT_MITIGATION + /* + * Disable the "general" TX/RX mitigation timers. + */ OS_REG_WRITE(ah, AR_MIRT, 0); + /* + * This initialises the RX interrupt mitigation timers. + * + * The mitigation timers begin at idle and are triggered + * upon the RXOK of a single frame (or sub-frame, for A-MPDU.) + * Then, the RX mitigation interrupt will fire: + * + * + 250uS after the last RX'ed frame, or + * + 700uS after the first RX'ed frame + * + * Thus, the LAST field dictates the extra latency + * induced by the RX mitigation method and the FIRST + * field dictates how long to delay before firing an + * RX mitigation interrupt. + * + * Please note this only seems to be for RXOK frames; + * not CRC or PHY error frames. + * + */ OS_REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 250); OS_REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 700); #endif |
