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authorNick Kossifidis <mick@madwifi-project.org>2009-04-30 15:55:50 -0400
committerJohn W. Linville <linville@tuxdriver.com>2009-05-06 15:14:56 -0400
commit57e6c56dbb52d680f61dd629759fe2974840ed93 (patch)
tree66a9671168f7eb67aa42fa1ce8def3ded45e21ae /drivers/net/wireless/ath/ath5k/reset.c
parent2bed03ebf62f9d013a455209bf30d7e086120443 (diff)
ath5k: Add Spur filter support on newer chips
* Add spur filter support for RF5413 and later chips Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/reset.c')
-rw-r--r--drivers/net/wireless/ath/ath5k/reset.c35
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 0e075bca384f..c1862f8a2e7b 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -536,26 +536,6 @@ static void ath5k_hw_set_sleep_clock(struct ath5k_hw *ah, bool enable)
return;
}
-static bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
- struct ieee80211_channel *channel)
-{
- u8 refclk_freq;
-
- if ((ah->ah_radio == AR5K_RF5112) ||
- (ah->ah_radio == AR5K_RF5413) ||
- (ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4)))
- refclk_freq = 40;
- else
- refclk_freq = 32;
-
- if ((channel->center_freq % refclk_freq != 0) &&
- ((channel->center_freq % refclk_freq < 10) ||
- (channel->center_freq % refclk_freq > 22)))
- return true;
- else
- return false;
-}
-
/* TODO: Half/Quarter rate */
static void ath5k_hw_tweak_initval_settings(struct ath5k_hw *ah,
struct ieee80211_channel *channel)
@@ -998,7 +978,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
ath5k_hw_tweak_initval_settings(ah, channel);
/*
- * Set TX power (FIXME)
+ * Set TX power
*/
ret = ath5k_hw_txpower(ah, channel, ee_mode,
ah->ah_txpower.txp_max_pwr / 2);
@@ -1024,9 +1004,22 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
/* Write OFDM timings on 5212*/
if (ah->ah_version == AR5K_AR5212 &&
channel->hw_value & CHANNEL_OFDM) {
+ struct ath5k_eeprom_info *ee =
+ &ah->ah_capabilities.cap_eeprom;
+
ret = ath5k_hw_write_ofdm_timings(ah, channel);
if (ret)
return ret;
+
+ /* Note: According to docs we can have a newer
+ * EEPROM on old hardware, so we need to verify
+ * that our hardware is new enough to have spur
+ * mitigation registers (delta phase etc) */
+ if (ah->ah_mac_srev >= AR5K_SREV_AR5424 ||
+ (ah->ah_mac_srev >= AR5K_SREV_AR5424 &&
+ ee->ee_version >= AR5K_EEPROM_VERSION_5_3))
+ ath5k_hw_set_spur_mitigation_filter(ah,
+ channel);
}
/*Enable/disable 802.11b mode on 5111