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ath5k: add capability flag for phyerror counters 

Chipsets since revision AR5213A (0x59) have hardware counters for PHY errors
which we can read directly from the registers. Older hardware has to use the RX
descriptor status to get a count of PHY errors. This will be used in several
places in the ANI implementation, so a flag is useful.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-03-25 14:49:47 +09:00 committed by John W. Linville
parent da35111ad9
commit a8c944f8a0
2 changed files with 8 additions and 0 deletions
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2
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -982,6 +982,8 @@ struct ath5k_capabilities {
struct {
u8 q_tx_num;
} cap_queues;
bool cap_has_phyerr_counters;
};
/* size of noise floor history (keep it a power of two) */

6
drivers/net/wireless/ath/ath5k/caps.c
View File

@ -109,6 +109,12 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
else
ah->ah_capabilities.cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
/* newer hardware has PHY error counters */
if (ah->ah_mac_srev >= AR5K_SREV_AR5213A)
ah->ah_capabilities.cap_has_phyerr_counters = true;
else
ah->ah_capabilities.cap_has_phyerr_counters = false;
return 0;
}