diff options
| author | Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> | 2011-07-08 11:31:32 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-07-08 19:47:17 +0400 |
| commit | 331c5ea2d92c76bfe58a9bb5e6d21160850a29bc (patch) | |
| tree | 0e5affcb372e1dd717d636c03ed6eb8c8b32d5f6 /drivers/net/wireless/ath/ath9k/ar9003_paprd.c | |
| parent | e156103cee78a1dd1c0d14efe08aa36fc9285013 (diff) | |
| download | linux-331c5ea2d92c76bfe58a9bb5e6d21160850a29bc.tar.xz | |
ath9k_hw: Disable PAPRD based on paprd_ht20_mask for 5GHz
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_paprd.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index de1972307b0a..f80d1d633980 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -21,6 +21,36 @@ void ar9003_paprd_enable(struct ath_hw *ah, bool val) { struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); struct ath9k_channel *chan = ah->curchan; + struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep; + + /* + * 3 bits for modalHeader5G.papdRateMaskHt20 + * is used for sub-band disabling of PAPRD. + * 5G band is divided into 3 sub-bands -- upper, + * middle, lower. + * if bit 30 of modalHeader5G.papdRateMaskHt20 is set + * -- disable PAPRD for upper band 5GHz + * if bit 29 of modalHeader5G.papdRateMaskHt20 is set + * -- disable PAPRD for middle band 5GHz + * if bit 28 of modalHeader5G.papdRateMaskHt20 is set + * -- disable PAPRD for lower band 5GHz + */ + + if (IS_CHAN_5GHZ(chan)) { + if (chan->channel >= UPPER_5G_SUB_BAND_START) { + if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20) + & BIT(30)) + val = false; + } else if (chan->channel >= MID_5G_SUB_BAND_START) { + if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20) + & BIT(29)) + val = false; + } else { + if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20) + & BIT(28)) + val = false; + } + } if (val) { ah->paprd_table_write_done = true; |