* Tweak power detector delays on AR5111/AR5112 when
using half/quarter modes.
Signed-off-by: Nick Kossifidis <[email protected]>
---
drivers/net/wireless/ath/ath5k/phy.c | 32 ++++++++++++++++++++++++++++++--
1 files changed, 30 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 706fc46..6913a52 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -851,7 +851,23 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode],
AR5K_RF_PLO_SEL, true);
- /* TODO: Half/quarter channel support */
+ /* Tweak power detectors for half/quarter rate support */
+ if (ah->ah_bwmode == AR5K_BWMODE_5MHZ ||
+ ah->ah_bwmode == AR5K_BWMODE_10MHZ) {
+ u8 wait_i;
+
+ ath5k_hw_rfb_op(ah, rf_regs, 0x1f,
+ AR5K_RF_WAIT_S, true);
+
+ wait_i = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ?
+ 0x1f : 0x10;
+
+ ath5k_hw_rfb_op(ah, rf_regs, wait_i,
+ AR5K_RF_WAIT_I, true);
+ ath5k_hw_rfb_op(ah, rf_regs, 3,
+ AR5K_RF_MAX_TIME, true);
+
+ }
}
if (ah->ah_radio == AR5K_RF5112) {
@@ -949,8 +965,20 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode],
AR5K_RF_GAIN_I, true);
- /* TODO: Half/quarter channel support */
+ /* Tweak power detector for half/quarter rates */
+ if (ah->ah_bwmode == AR5K_BWMODE_5MHZ ||
+ ah->ah_bwmode == AR5K_BWMODE_10MHZ) {
+ u8 pd_delay;
+ pd_delay = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ?
+ 0xf : 0x8;
+
+ ath5k_hw_rfb_op(ah, rf_regs, pd_delay,
+ AR5K_RF_PD_PERIOD_A, true);
+ ath5k_hw_rfb_op(ah, rf_regs, 0xf,
+ AR5K_RF_PD_DELAY_A, true);
+
+ }
}
if (ah->ah_radio == AR5K_RF5413 &&