diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2010-12-06 04:27:47 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-12-07 16:34:56 -0500 |
| commit | d9a2545ac713e26ab8c8eee741d2da1626cebd6e (patch) | |
| tree | 3d5974b959a9bed5235c56a2c3b7edc2a02a29fd /drivers/net | |
| parent | 272ceba892208013a45847276a00ccae54e2b94a (diff) | |
ath9k: Read spur channel information from eeprom for AR9485
Also spur channel count and range is different for AR9485.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_phy.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index bce1fdb1660..da4a571304d 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -134,21 +134,50 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah, static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 }; int cur_bb_spur, negative = 0, cck_spur_freq; int i; + int range, max_spur_cnts, synth_freq; + u8 *spur_fbin_ptr = NULL; /* * Need to verify range +/- 10 MHz in control channel, otherwise spur * is out-of-band and can be ignored. */ - for (i = 0; i < 4; i++) { + if (AR_SREV_9485(ah)) { + spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, + IS_CHAN_2GHZ(chan)); + if (spur_fbin_ptr[0] == 0) /* No spur */ + return; + max_spur_cnts = 5; + if (IS_CHAN_HT40(chan)) { + range = 19; + if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, + AR_PHY_GC_DYN2040_PRI_CH) == 0) + synth_freq = chan->channel + 10; + else + synth_freq = chan->channel - 10; + } else { + range = 10; + synth_freq = chan->channel; + } + } else { + range = 10; + max_spur_cnts = 4; + synth_freq = chan->channel; + } + + for (i = 0; i < max_spur_cnts; i++) { negative = 0; - cur_bb_spur = spur_freq[i] - chan->channel; + if (AR_SREV_9485(ah)) + cur_bb_spur = FBIN2FREQ(spur_fbin_ptr[i], + IS_CHAN_2GHZ(chan)) - synth_freq; + else + cur_bb_spur = spur_freq[i] - synth_freq; if (cur_bb_spur < 0) { negative = 1; cur_bb_spur = -cur_bb_spur; } - if (cur_bb_spur < 10) { + if (cur_bb_spur < range) { cck_spur_freq = (int)((cur_bb_spur << 19) / 11); if (negative == 1) |