Commit 331c5ea2 authored by Mohammed Shafi Shajakhan's avatar Mohammed Shafi Shajakhan Committed by John W. Linville
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ath9k_hw: Disable PAPRD based on paprd_ht20_mask for 5GHz 



Signed-off-by: default avatarMohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e156103c

drivers/net/wireless/ath/ath9k/ar9003_paprd.c

+30 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/wireless/ath/ath9k/hw.h

+2 −0
Original line number Diff line number Diff line
@@ -143,6 +143,8 @@ 
#define AR_KEYTABLE_SIZE            128

#define POWER_UP_TIME               10000

#define SPUR_RSSI_THRESH            40

#define UPPER_5G_SUB_BAND_START		5700

#define MID_5G_SUB_BAND_START		5400



#define CAB_TIMEOUT_VAL             10

#define BEACON_TIMEOUT_VAL          10