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ath9k: Read spur channel information from eeprom for AR9485

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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>
This commit is contained in:
Vasanthakumar Thiagarajan 2010-12-06 04:27:47 -08:00 committed by John W. Linville
parent 272ceba892
commit d9a2545ac7
1 changed files with 32 additions and 3 deletions
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35
drivers/net/wireless/ath/ath9k/ar9003_phy.c
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@ -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)