ath5k: Use high bitrates for ACK/CTS

There was a confusion in the usage of the bits AR5K_STA_ID1_ACKCTS_6MB and
AR5K_STA_ID1_BASE_RATE_11B. If they are set (1), we will get lower bitrates for
ACK and CTS. Therefore ath5k_hw_set_ack_bitrate_high(ah, false) actually
resulted in high bitrates, which i think is what we want anyways. Cleared the
confusion and added some documentation.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 5 insertions, 6 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index f7f57c1cca7d..3f59bc2d7912 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2558,8 +2558,7 @@ ath5k_init(struct ath5k_softc *sc)
         for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
                 ath5k_hw_reset_key(ah, i);
 
-        /* Set ack to be sent at low bit-rates */
-        ath5k_hw_set_ack_bitrate_high(ah, false);
+        ath5k_hw_set_ack_bitrate_high(ah, true);
         ret = 0;
 done:
         mmiowb();
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index 710870ea179b..174412fc81f8 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -154,9 +154,9 @@ void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high)
         else {
                 u32 val = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB;
                 if (high)
-                        AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
-                else
                         AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1, val);
+                else
+                        AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
         }
 }
 
diff --git a/drivers/net/wireless/ath/ath5k/reg.h b/drivers/net/wireless/ath/ath5k/reg.h
index 45d62e915e4c..55b4ac6d236f 100644
--- a/drivers/net/wireless/ath/ath5k/reg.h
+++ b/drivers/net/wireless/ath/ath5k/reg.h
@@ -1139,8 +1139,8 @@
 #define AR5K_STA_ID1_DEFAULT_ANTENNA    0x00200000      /* Use default antenna */
 #define AR5K_STA_ID1_DESC_ANTENNA       0x00400000      /* Update antenna from descriptor */
 #define AR5K_STA_ID1_RTS_DEF_ANTENNA    0x00800000      /* Use default antenna for RTS */
-#define AR5K_STA_ID1_ACKCTS_6MB         0x01000000      /* Use 6Mbit/s for ACK/CTS */
-#define AR5K_STA_ID1_BASE_RATE_11B      0x02000000      /* Use 11b base rate for ACK/CTS [5211+] */
+#define AR5K_STA_ID1_ACKCTS_6MB         0x01000000      /* Rate to use for ACK/CTS. 0: highest mandatory rate <= RX rate; 1: 1Mbps in B mode */
+#define AR5K_STA_ID1_BASE_RATE_11B      0x02000000      /* 802.11b base rate. 0: 1, 2, 5.5 and 11Mbps; 1: 1 and 2Mbps. [5211+] */
 #define AR5K_STA_ID1_SELFGEN_DEF_ANT    0x04000000      /* Use def. antenna for self generated frames */
 #define AR5K_STA_ID1_CRYPT_MIC_EN       0x08000000      /* Enable MIC */
 #define AR5K_STA_ID1_KEYSRCH_MODE       0x10000000      /* Look up key when key id != 0 */