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-rw-r--r--drivers/net/wireless/ath5k/ath5k.h1
-rw-r--r--drivers/net/wireless/ath5k/attach.c6
-rw-r--r--drivers/net/wireless/ath5k/pcu.c95
-rw-r--r--drivers/net/wireless/ath5k/reg.h1
4 files changed, 60 insertions, 43 deletions
diff --git a/drivers/net/wireless/ath5k/ath5k.h b/drivers/net/wireless/ath5k/ath5k.h
index 5ee2dd1814c2..13df1191b070 100644
--- a/drivers/net/wireless/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath5k/ath5k.h
@@ -1052,6 +1052,7 @@ struct ath5k_hw {
bool ah_calibration;
bool ah_running;
bool ah_single_chip;
+ bool ah_combined_mic;
enum ath5k_rfgain ah_rf_gain;
u32 ah_mac_srev;
diff --git a/drivers/net/wireless/ath5k/attach.c b/drivers/net/wireless/ath5k/attach.c
index 49d82d79d3fc..dea378f76731 100644
--- a/drivers/net/wireless/ath5k/attach.c
+++ b/drivers/net/wireless/ath5k/attach.c
@@ -317,6 +317,12 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
goto err_free;
}
+ if (srev >= AR5K_SREV_AR2414) {
+ ah->ah_combined_mic = true;
+ AR5K_REG_ENABLE_BITS(ah, AR5K_MISC_MODE,
+ AR5K_MISC_MODE_COMBINED_MIC);
+ }
+
/* MAC address is cleared until add_interface */
ath5k_hw_set_lladdr(ah, mac);
diff --git a/drivers/net/wireless/ath5k/pcu.c b/drivers/net/wireless/ath5k/pcu.c
index d7f0c1017bda..dabe42219e2a 100644
--- a/drivers/net/wireless/ath5k/pcu.c
+++ b/drivers/net/wireless/ath5k/pcu.c
@@ -267,24 +267,23 @@ void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac)
* @mac: The card's mac address
*
* Set station id on hw using the provided mac address
- *
- * NOTE: This is only called during attach, don't call it
- * on reset because it overwrites all AR5K_STA_ID1 settings.
- * We have set_opmode (above) for reset.
*/
int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac)
{
u32 low_id, high_id;
+ u32 pcu_reg;
ATH5K_TRACE(ah->ah_sc);
/* Set new station ID */
memcpy(ah->ah_sta_id, mac, ETH_ALEN);
+ pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000;
+
low_id = AR5K_LOW_ID(mac);
high_id = AR5K_HIGH_ID(mac);
ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
- ath5k_hw_reg_write(ah, high_id, AR5K_STA_ID1);
+ ath5k_hw_reg_write(ah, pcu_reg | high_id, AR5K_STA_ID1);
return 0;
}
@@ -1014,6 +1013,23 @@ int ath5k_hw_is_key_valid(struct ath5k_hw *ah, u16 entry)
AR5K_KEYTABLE_VALID;
}
+static
+int ath5k_keycache_type(const struct ieee80211_key_conf *key)
+{
+ switch (key->alg) {
+ case ALG_TKIP:
+ return AR5K_KEYTABLE_TYPE_TKIP;
+ case ALG_CCMP:
+ return AR5K_KEYTABLE_TYPE_CCM;
+ case ALG_WEP:
+ if (key->keylen == LEN_WEP40)
+ return AR5K_KEYTABLE_TYPE_40;
+ else if (key->keylen == LEN_WEP104)
+ return AR5K_KEYTABLE_TYPE_104;
+ }
+ return -EINVAL;
+}
+
/*
* Set a key entry on the table
*/
@@ -1028,6 +1044,7 @@ int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry,
u32 keytype;
u16 micentry = entry + AR5K_KEYTABLE_MIC_OFFSET;
bool is_tkip;
+ const u8 *key_ptr;
ATH5K_TRACE(ah->ah_sc);
@@ -1043,33 +1060,25 @@ int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry,
(is_tkip && micentry > AR5K_KEYTABLE_SIZE))
return -EOPNOTSUPP;
- switch (keylen) {
- /* WEP 40-bit = 40-bit entered key + 24 bit IV = 64-bit */
- case 40 / 8:
- memcpy(&key_v[0], key->key, 5);
- keytype = AR5K_KEYTABLE_TYPE_40;
- break;
+ if (unlikely(keylen > 16))
+ return -EOPNOTSUPP;
- /* WEP 104-bit = 104-bit entered key + 24-bit IV = 128-bit */
- case 104 / 8:
- memcpy(&key_v[0], &key->key[0], 6);
- memcpy(&key_v[2], &key->key[6], 6);
- memcpy(&key_v[4], &key->key[12], 1);
- keytype = AR5K_KEYTABLE_TYPE_104;
- break;
- /* WEP/TKIP 128-bit = 128-bit entered key + 24 bit IV = 152-bit */
- case 128 / 8:
- memcpy(&key_v[0], &key->key[0], 6);
- memcpy(&key_v[2], &key->key[6], 6);
- memcpy(&key_v[4], &key->key[12], 4);
- keytype = is_tkip ?
- AR5K_KEYTABLE_TYPE_TKIP :
- AR5K_KEYTABLE_TYPE_128;
- break;
+ keytype = ath5k_keycache_type(key);
+ if (keytype < 0)
+ return keytype;
- default:
- return -EINVAL; /* shouldn't happen */
+ /*
+ * each key block is 6 bytes wide, written as pairs of
+ * alternating 32 and 16 bit le values.
+ */
+ key_ptr = key->key;
+ for (i = 0; keylen >= 6; keylen -= 6) {
+ memcpy(&key_v[i], key_ptr, 6);
+ i += 2;
+ key_ptr += 6;
}
+ if (keylen)
+ memcpy(&key_v[i], key_ptr, keylen);
/* intentionally corrupt key until mic is installed */
if (is_tkip) {
@@ -1087,20 +1096,20 @@ int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry,
/* Install rx/tx MIC */
rxmic = (__le32 *) &key->key[16];
txmic = (__le32 *) &key->key[24];
-#if 0
- /* MISC_MODE register & 0x04 - for mac srev >= griffin */
- key_v[0] = rxmic[0];
- key_v[1] = (txmic[0] >> 16) & 0xffff;
- key_v[2] = rxmic[1];
- key_v[3] = txmic[0] & 0xffff;
- key_v[4] = txmic[1];
-#else
- key_v[0] = rxmic[0];
- key_v[1] = 0;
- key_v[2] = rxmic[1];
- key_v[3] = 0;
- key_v[4] = 0;
-#endif
+
+ if (ah->ah_combined_mic) {
+ key_v[0] = rxmic[0];
+ key_v[1] = (txmic[0] >> 16) & 0xffff;
+ key_v[2] = rxmic[1];
+ key_v[3] = txmic[0] & 0xffff;
+ key_v[4] = txmic[1];
+ } else {
+ key_v[0] = rxmic[0];
+ key_v[1] = 0;
+ key_v[2] = rxmic[1];
+ key_v[3] = 0;
+ key_v[4] = 0;
+ }
for (i = 0; i < ARRAY_SIZE(key_v); i++)
ath5k_hw_reg_write(ah, le32_to_cpu(key_v[i]),
AR5K_KEYTABLE_OFF(micentry, i));
diff --git a/drivers/net/wireless/ath5k/reg.h b/drivers/net/wireless/ath5k/reg.h
index 69755fc2f9be..91aaeaf88199 100644
--- a/drivers/net/wireless/ath5k/reg.h
+++ b/drivers/net/wireless/ath5k/reg.h
@@ -1729,6 +1729,7 @@
#define AR5K_MISC_MODE 0x8120 /* Register Address */
#define AR5K_MISC_MODE_FBSSID_MATCH 0x00000001 /* Force BSSID match */
#define AR5K_MISC_MODE_ACKSIFS_MEM 0x00000002 /* ACK SIFS memory (?) */
+#define AR5K_MISC_MODE_COMBINED_MIC 0x00000004 /* use rx/tx MIC key */
/* more bits */
/*
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